Adding upstream version 4.19.249.upstream/4.19.249

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 4039 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath/ath6kl/cfg80211.c b/drivers/net/wireless/ath/ath6kl/cfg80211.c
new file mode 100644
index 000000000..d7c626d95
--- /dev/null
+++ b/drivers/net/wireless/ath/ath6kl/cfg80211.c
@@ -0,0 +1,4039 @@
+/*
+ * Copyright (c) 2004-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2012 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.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/moduleparam.h>
+#include <linux/inetdevice.h>
+#include <linux/export.h>
+#include <linux/sched/signal.h>
+
+#include "core.h"
+#include "cfg80211.h"
+#include "debug.h"
+#include "hif-ops.h"
+#include "testmode.h"
+
+#define RATETAB_ENT(_rate, _rateid, _flags) {   \
+	.bitrate    = (_rate),                  \
+	.flags      = (_flags),                 \
+	.hw_value   = (_rateid),                \
+}
+
+#define CHAN2G(_channel, _freq, _flags) {   \
+	.band           = NL80211_BAND_2GHZ,  \
+	.hw_value       = (_channel),           \
+	.center_freq    = (_freq),              \
+	.flags          = (_flags),             \
+	.max_antenna_gain   = 0,                \
+	.max_power      = 30,                   \
+}
+
+#define CHAN5G(_channel, _flags) {		    \
+	.band           = NL80211_BAND_5GHZ,      \
+	.hw_value       = (_channel),               \
+	.center_freq    = 5000 + (5 * (_channel)),  \
+	.flags          = (_flags),                 \
+	.max_antenna_gain   = 0,                    \
+	.max_power      = 30,                       \
+}
+
+#define DEFAULT_BG_SCAN_PERIOD 60
+
+struct ath6kl_cfg80211_match_probe_ssid {
+	struct cfg80211_ssid ssid;
+	u8 flag;
+};
+
+static struct ieee80211_rate ath6kl_rates[] = {
+	RATETAB_ENT(10, 0x1, 0),
+	RATETAB_ENT(20, 0x2, 0),
+	RATETAB_ENT(55, 0x4, 0),
+	RATETAB_ENT(110, 0x8, 0),
+	RATETAB_ENT(60, 0x10, 0),
+	RATETAB_ENT(90, 0x20, 0),
+	RATETAB_ENT(120, 0x40, 0),
+	RATETAB_ENT(180, 0x80, 0),
+	RATETAB_ENT(240, 0x100, 0),
+	RATETAB_ENT(360, 0x200, 0),
+	RATETAB_ENT(480, 0x400, 0),
+	RATETAB_ENT(540, 0x800, 0),
+};
+
+#define ath6kl_a_rates     (ath6kl_rates + 4)
+#define ath6kl_a_rates_size    8
+#define ath6kl_g_rates     (ath6kl_rates + 0)
+#define ath6kl_g_rates_size    12
+
+#define ath6kl_g_htcap IEEE80211_HT_CAP_SGI_20
+#define ath6kl_a_htcap (IEEE80211_HT_CAP_SUP_WIDTH_20_40 | \
+			IEEE80211_HT_CAP_SGI_20		 | \
+			IEEE80211_HT_CAP_SGI_40)
+
+static struct ieee80211_channel ath6kl_2ghz_channels[] = {
+	CHAN2G(1, 2412, 0),
+	CHAN2G(2, 2417, 0),
+	CHAN2G(3, 2422, 0),
+	CHAN2G(4, 2427, 0),
+	CHAN2G(5, 2432, 0),
+	CHAN2G(6, 2437, 0),
+	CHAN2G(7, 2442, 0),
+	CHAN2G(8, 2447, 0),
+	CHAN2G(9, 2452, 0),
+	CHAN2G(10, 2457, 0),
+	CHAN2G(11, 2462, 0),
+	CHAN2G(12, 2467, 0),
+	CHAN2G(13, 2472, 0),
+	CHAN2G(14, 2484, 0),
+};
+
+static struct ieee80211_channel ath6kl_5ghz_a_channels[] = {
+	CHAN5G(36, 0), CHAN5G(40, 0),
+	CHAN5G(44, 0), CHAN5G(48, 0),
+	CHAN5G(52, 0), CHAN5G(56, 0),
+	CHAN5G(60, 0), CHAN5G(64, 0),
+	CHAN5G(100, 0), CHAN5G(104, 0),
+	CHAN5G(108, 0), CHAN5G(112, 0),
+	CHAN5G(116, 0), CHAN5G(120, 0),
+	CHAN5G(124, 0), CHAN5G(128, 0),
+	CHAN5G(132, 0), CHAN5G(136, 0),
+	CHAN5G(140, 0), CHAN5G(149, 0),
+	CHAN5G(153, 0), CHAN5G(157, 0),
+	CHAN5G(161, 0), CHAN5G(165, 0),
+	CHAN5G(184, 0), CHAN5G(188, 0),
+	CHAN5G(192, 0), CHAN5G(196, 0),
+	CHAN5G(200, 0), CHAN5G(204, 0),
+	CHAN5G(208, 0), CHAN5G(212, 0),
+	CHAN5G(216, 0),
+};
+
+static struct ieee80211_supported_band ath6kl_band_2ghz = {
+	.n_channels = ARRAY_SIZE(ath6kl_2ghz_channels),
+	.channels = ath6kl_2ghz_channels,
+	.n_bitrates = ath6kl_g_rates_size,
+	.bitrates = ath6kl_g_rates,
+	.ht_cap.cap = ath6kl_g_htcap,
+	.ht_cap.ht_supported = true,
+};
+
+static struct ieee80211_supported_band ath6kl_band_5ghz = {
+	.n_channels = ARRAY_SIZE(ath6kl_5ghz_a_channels),
+	.channels = ath6kl_5ghz_a_channels,
+	.n_bitrates = ath6kl_a_rates_size,
+	.bitrates = ath6kl_a_rates,
+	.ht_cap.cap = ath6kl_a_htcap,
+	.ht_cap.ht_supported = true,
+};
+
+#define CCKM_KRK_CIPHER_SUITE 0x004096ff /* use for KRK */
+
+/* returns true if scheduled scan was stopped */
+static bool __ath6kl_cfg80211_sscan_stop(struct ath6kl_vif *vif)
+{
+	struct ath6kl *ar = vif->ar;
+
+	if (!test_and_clear_bit(SCHED_SCANNING, &vif->flags))
+		return false;
+
+	del_timer_sync(&vif->sched_scan_timer);
+
+	if (ar->state == ATH6KL_STATE_RECOVERY)
+		return true;
+
+	ath6kl_wmi_enable_sched_scan_cmd(ar->wmi, vif->fw_vif_idx, false);
+
+	return true;
+}
+
+static void ath6kl_cfg80211_sscan_disable(struct ath6kl_vif *vif)
+{
+	struct ath6kl *ar = vif->ar;
+	bool stopped;
+
+	stopped = __ath6kl_cfg80211_sscan_stop(vif);
+
+	if (!stopped)
+		return;
+
+	cfg80211_sched_scan_stopped(ar->wiphy, 0);
+}
+
+static int ath6kl_set_wpa_version(struct ath6kl_vif *vif,
+				  enum nl80211_wpa_versions wpa_version)
+{
+	ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: %u\n", __func__, wpa_version);
+
+	if (!wpa_version) {
+		vif->auth_mode = NONE_AUTH;
+	} else if (wpa_version & NL80211_WPA_VERSION_2) {
+		vif->auth_mode = WPA2_AUTH;
+	} else if (wpa_version & NL80211_WPA_VERSION_1) {
+		vif->auth_mode = WPA_AUTH;
+	} else {
+		ath6kl_err("%s: %u not supported\n", __func__, wpa_version);
+		return -ENOTSUPP;
+	}
+
+	return 0;
+}
+
+static int ath6kl_set_auth_type(struct ath6kl_vif *vif,
+				enum nl80211_auth_type auth_type)
+{
+	ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: 0x%x\n", __func__, auth_type);
+
+	switch (auth_type) {
+	case NL80211_AUTHTYPE_OPEN_SYSTEM:
+		vif->dot11_auth_mode = OPEN_AUTH;
+		break;
+	case NL80211_AUTHTYPE_SHARED_KEY:
+		vif->dot11_auth_mode = SHARED_AUTH;
+		break;
+	case NL80211_AUTHTYPE_NETWORK_EAP:
+		vif->dot11_auth_mode = LEAP_AUTH;
+		break;
+
+	case NL80211_AUTHTYPE_AUTOMATIC:
+		vif->dot11_auth_mode = OPEN_AUTH | SHARED_AUTH;
+		break;
+
+	default:
+		ath6kl_err("%s: 0x%x not supported\n", __func__, auth_type);
+		return -ENOTSUPP;
+	}
+
+	return 0;
+}
+
+static int ath6kl_set_cipher(struct ath6kl_vif *vif, u32 cipher, bool ucast)
+{
+	u8 *ar_cipher = ucast ? &vif->prwise_crypto : &vif->grp_crypto;
+	u8 *ar_cipher_len = ucast ? &vif->prwise_crypto_len :
+		&vif->grp_crypto_len;
+
+	ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: cipher 0x%x, ucast %u\n",
+		   __func__, cipher, ucast);
+
+	switch (cipher) {
+	case 0:
+		/* our own hack to use value 0 as no crypto used */
+		*ar_cipher = NONE_CRYPT;
+		*ar_cipher_len = 0;
+		break;
+	case WLAN_CIPHER_SUITE_WEP40:
+		*ar_cipher = WEP_CRYPT;
+		*ar_cipher_len = 5;
+		break;
+	case WLAN_CIPHER_SUITE_WEP104:
+		*ar_cipher = WEP_CRYPT;
+		*ar_cipher_len = 13;
+		break;
+	case WLAN_CIPHER_SUITE_TKIP:
+		*ar_cipher = TKIP_CRYPT;
+		*ar_cipher_len = 0;
+		break;
+	case WLAN_CIPHER_SUITE_CCMP:
+		*ar_cipher = AES_CRYPT;
+		*ar_cipher_len = 0;
+		break;
+	case WLAN_CIPHER_SUITE_SMS4:
+		*ar_cipher = WAPI_CRYPT;
+		*ar_cipher_len = 0;
+		break;
+	default:
+		ath6kl_err("cipher 0x%x not supported\n", cipher);
+		return -ENOTSUPP;
+	}
+
+	return 0;
+}
+
+static void ath6kl_set_key_mgmt(struct ath6kl_vif *vif, u32 key_mgmt)
+{
+	ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: 0x%x\n", __func__, key_mgmt);
+
+	if (key_mgmt == WLAN_AKM_SUITE_PSK) {
+		if (vif->auth_mode == WPA_AUTH)
+			vif->auth_mode = WPA_PSK_AUTH;
+		else if (vif->auth_mode == WPA2_AUTH)
+			vif->auth_mode = WPA2_PSK_AUTH;
+	} else if (key_mgmt == 0x00409600) {
+		if (vif->auth_mode == WPA_AUTH)
+			vif->auth_mode = WPA_AUTH_CCKM;
+		else if (vif->auth_mode == WPA2_AUTH)
+			vif->auth_mode = WPA2_AUTH_CCKM;
+	} else if (key_mgmt != WLAN_AKM_SUITE_8021X) {
+		vif->auth_mode = NONE_AUTH;
+	}
+}
+
+static bool ath6kl_cfg80211_ready(struct ath6kl_vif *vif)
+{
+	struct ath6kl *ar = vif->ar;
+
+	if (!test_bit(WMI_READY, &ar->flag)) {
+		ath6kl_err("wmi is not ready\n");
+		return false;
+	}
+
+	if (!test_bit(WLAN_ENABLED, &vif->flags)) {
+		ath6kl_err("wlan disabled\n");
+		return false;
+	}
+
+	return true;
+}
+
+static bool ath6kl_is_wpa_ie(const u8 *pos)
+{
+	return pos[0] == WLAN_EID_VENDOR_SPECIFIC && pos[1] >= 4 &&
+		pos[2] == 0x00 && pos[3] == 0x50 &&
+		pos[4] == 0xf2 && pos[5] == 0x01;
+}
+
+static bool ath6kl_is_rsn_ie(const u8 *pos)
+{
+	return pos[0] == WLAN_EID_RSN;
+}
+
+static bool ath6kl_is_wps_ie(const u8 *pos)
+{
+	return (pos[0] == WLAN_EID_VENDOR_SPECIFIC &&
+		pos[1] >= 4 &&
+		pos[2] == 0x00 && pos[3] == 0x50 && pos[4] == 0xf2 &&
+		pos[5] == 0x04);
+}
+
+static int ath6kl_set_assoc_req_ies(struct ath6kl_vif *vif, const u8 *ies,
+				    size_t ies_len)
+{
+	struct ath6kl *ar = vif->ar;
+	const u8 *pos;
+	u8 *buf = NULL;
+	size_t len = 0;
+	int ret;
+
+	/*
+	 * Clear previously set flag
+	 */
+
+	ar->connect_ctrl_flags &= ~CONNECT_WPS_FLAG;
+
+	/*
+	 * Filter out RSN/WPA IE(s)
+	 */
+
+	if (ies && ies_len) {
+		buf = kmalloc(ies_len, GFP_KERNEL);
+		if (buf == NULL)
+			return -ENOMEM;
+		pos = ies;
+
+		while (pos + 1 < ies + ies_len) {
+			if (pos + 2 + pos[1] > ies + ies_len)
+				break;
+			if (!(ath6kl_is_wpa_ie(pos) || ath6kl_is_rsn_ie(pos))) {
+				memcpy(buf + len, pos, 2 + pos[1]);
+				len += 2 + pos[1];
+			}
+
+			if (ath6kl_is_wps_ie(pos))
+				ar->connect_ctrl_flags |= CONNECT_WPS_FLAG;
+
+			pos += 2 + pos[1];
+		}
+	}
+
+	ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
+				       WMI_FRAME_ASSOC_REQ, buf, len);
+	kfree(buf);
+	return ret;
+}
+
+static int ath6kl_nliftype_to_drv_iftype(enum nl80211_iftype type, u8 *nw_type)
+{
+	switch (type) {
+	case NL80211_IFTYPE_STATION:
+	case NL80211_IFTYPE_P2P_CLIENT:
+		*nw_type = INFRA_NETWORK;
+		break;
+	case NL80211_IFTYPE_ADHOC:
+		*nw_type = ADHOC_NETWORK;
+		break;
+	case NL80211_IFTYPE_AP:
+	case NL80211_IFTYPE_P2P_GO:
+		*nw_type = AP_NETWORK;
+		break;
+	default:
+		ath6kl_err("invalid interface type %u\n", type);
+		return -ENOTSUPP;
+	}
+
+	return 0;
+}
+
+static bool ath6kl_is_valid_iftype(struct ath6kl *ar, enum nl80211_iftype type,
+				   u8 *if_idx, u8 *nw_type)
+{
+	int i;
+
+	if (ath6kl_nliftype_to_drv_iftype(type, nw_type))
+		return false;
+
+	if (ar->ibss_if_active || ((type == NL80211_IFTYPE_ADHOC) &&
+				   ar->num_vif))
+		return false;
+
+	if (type == NL80211_IFTYPE_STATION ||
+	    type == NL80211_IFTYPE_AP || type == NL80211_IFTYPE_ADHOC) {
+		for (i = 0; i < ar->vif_max; i++) {
+			if ((ar->avail_idx_map) & BIT(i)) {
+				*if_idx = i;
+				return true;
+			}
+		}
+	}
+
+	if (type == NL80211_IFTYPE_P2P_CLIENT ||
+	    type == NL80211_IFTYPE_P2P_GO) {
+		for (i = ar->max_norm_iface; i < ar->vif_max; i++) {
+			if ((ar->avail_idx_map) & BIT(i)) {
+				*if_idx = i;
+				return true;
+			}
+		}
+	}
+
+	return false;
+}
+
+static bool ath6kl_is_tx_pending(struct ath6kl *ar)
+{
+	return ar->tx_pending[ath6kl_wmi_get_control_ep(ar->wmi)] == 0;
+}
+
+static void ath6kl_cfg80211_sta_bmiss_enhance(struct ath6kl_vif *vif,
+					      bool enable)
+{
+	int err;
+
+	if (WARN_ON(!test_bit(WMI_READY, &vif->ar->flag)))
+		return;
+
+	if (vif->nw_type != INFRA_NETWORK)
+		return;
+
+	if (!test_bit(ATH6KL_FW_CAPABILITY_BMISS_ENHANCE,
+		      vif->ar->fw_capabilities))
+		return;
+
+	ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s fw bmiss enhance\n",
+		   enable ? "enable" : "disable");
+
+	err = ath6kl_wmi_sta_bmiss_enhance_cmd(vif->ar->wmi,
+					       vif->fw_vif_idx, enable);
+	if (err)
+		ath6kl_err("failed to %s enhanced bmiss detection: %d\n",
+			   enable ? "enable" : "disable", err);
+}
+
+static int ath6kl_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
+				   struct cfg80211_connect_params *sme)
+{
+	struct ath6kl *ar = ath6kl_priv(dev);
+	struct ath6kl_vif *vif = netdev_priv(dev);
+	int status;
+	u8 nw_subtype = (ar->p2p) ? SUBTYPE_P2PDEV : SUBTYPE_NONE;
+	u16 interval;
+
+	ath6kl_cfg80211_sscan_disable(vif);
+
+	vif->sme_state = SME_CONNECTING;
+
+	if (!ath6kl_cfg80211_ready(vif))
+		return -EIO;
+
+	if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) {
+		ath6kl_err("destroy in progress\n");
+		return -EBUSY;
+	}
+
+	if (test_bit(SKIP_SCAN, &ar->flag) &&
+	    ((sme->channel && sme->channel->center_freq == 0) ||
+	     (sme->bssid && is_zero_ether_addr(sme->bssid)))) {
+		ath6kl_err("SkipScan: channel or bssid invalid\n");
+		return -EINVAL;
+	}
+
+	if (down_interruptible(&ar->sem)) {
+		ath6kl_err("busy, couldn't get access\n");
+		return -ERESTARTSYS;
+	}
+
+	if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) {
+		ath6kl_err("busy, destroy in progress\n");
+		up(&ar->sem);
+		return -EBUSY;
+	}
+
+	if (ar->tx_pending[ath6kl_wmi_get_control_ep(ar->wmi)]) {
+		/*
+		 * sleep until the command queue drains
+		 */
+		wait_event_interruptible_timeout(ar->event_wq,
+						 ath6kl_is_tx_pending(ar),
+						 WMI_TIMEOUT);
+		if (signal_pending(current)) {
+			ath6kl_err("cmd queue drain timeout\n");
+			up(&ar->sem);
+			return -EINTR;
+		}
+	}
+
+	status = ath6kl_set_assoc_req_ies(vif, sme->ie, sme->ie_len);
+	if (status) {
+		up(&ar->sem);
+		return status;
+	}
+
+	if (sme->ie == NULL || sme->ie_len == 0)
+		ar->connect_ctrl_flags &= ~CONNECT_WPS_FLAG;
+
+	if (test_bit(CONNECTED, &vif->flags) &&
+	    vif->ssid_len == sme->ssid_len &&
+	    !memcmp(vif->ssid, sme->ssid, vif->ssid_len)) {
+		vif->reconnect_flag = true;
+		status = ath6kl_wmi_reconnect_cmd(ar->wmi, vif->fw_vif_idx,
+						  vif->req_bssid,
+						  vif->ch_hint);
+
+		up(&ar->sem);
+		if (status) {
+			ath6kl_err("wmi_reconnect_cmd failed\n");
+			return -EIO;
+		}
+		return 0;
+	} else if (vif->ssid_len == sme->ssid_len &&
+		   !memcmp(vif->ssid, sme->ssid, vif->ssid_len)) {
+		ath6kl_disconnect(vif);
+	}
+
+	memset(vif->ssid, 0, sizeof(vif->ssid));
+	vif->ssid_len = sme->ssid_len;
+	memcpy(vif->ssid, sme->ssid, sme->ssid_len);
+
+	if (sme->channel)
+		vif->ch_hint = sme->channel->center_freq;
+
+	memset(vif->req_bssid, 0, sizeof(vif->req_bssid));
+	if (sme->bssid && !is_broadcast_ether_addr(sme->bssid))
+		memcpy(vif->req_bssid, sme->bssid, sizeof(vif->req_bssid));
+
+	ath6kl_set_wpa_version(vif, sme->crypto.wpa_versions);
+
+	status = ath6kl_set_auth_type(vif, sme->auth_type);
+	if (status) {
+		up(&ar->sem);
+		return status;
+	}
+
+	if (sme->crypto.n_ciphers_pairwise)
+		ath6kl_set_cipher(vif, sme->crypto.ciphers_pairwise[0], true);
+	else
+		ath6kl_set_cipher(vif, 0, true);
+
+	ath6kl_set_cipher(vif, sme->crypto.cipher_group, false);
+
+	if (sme->crypto.n_akm_suites)
+		ath6kl_set_key_mgmt(vif, sme->crypto.akm_suites[0]);
+
+	if ((sme->key_len) &&
+	    (vif->auth_mode == NONE_AUTH) &&
+	    (vif->prwise_crypto == WEP_CRYPT)) {
+		struct ath6kl_key *key = NULL;
+
+		if (sme->key_idx > WMI_MAX_KEY_INDEX) {
+			ath6kl_err("key index %d out of bounds\n",
+				   sme->key_idx);
+			up(&ar->sem);
+			return -ENOENT;
+		}
+
+		key = &vif->keys[sme->key_idx];
+		key->key_len = sme->key_len;
+		memcpy(key->key, sme->key, key->key_len);
+		key->cipher = vif->prwise_crypto;
+		vif->def_txkey_index = sme->key_idx;
+
+		ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx, sme->key_idx,
+				      vif->prwise_crypto,
+				      GROUP_USAGE | TX_USAGE,
+				      key->key_len,
+				      NULL, 0,
+				      key->key, KEY_OP_INIT_VAL, NULL,
+				      NO_SYNC_WMIFLAG);
+	}
+
+	if (!ar->usr_bss_filter) {
+		clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags);
+		if (ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
+					     ALL_BSS_FILTER, 0) != 0) {
+			ath6kl_err("couldn't set bss filtering\n");
+			up(&ar->sem);
+			return -EIO;
+		}
+	}
+
+	vif->nw_type = vif->next_mode;
+
+	/* enable enhanced bmiss detection if applicable */
+	ath6kl_cfg80211_sta_bmiss_enhance(vif, true);
+
+	if (vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT)
+		nw_subtype = SUBTYPE_P2PCLIENT;
+
+	ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
+		   "%s: connect called with authmode %d dot11 auth %d"
+		   " PW crypto %d PW crypto len %d GRP crypto %d"
+		   " GRP crypto len %d channel hint %u\n",
+		   __func__,
+		   vif->auth_mode, vif->dot11_auth_mode, vif->prwise_crypto,
+		   vif->prwise_crypto_len, vif->grp_crypto,
+		   vif->grp_crypto_len, vif->ch_hint);
+
+	vif->reconnect_flag = 0;
+
+	if (vif->nw_type == INFRA_NETWORK) {
+		interval = max_t(u16, vif->listen_intvl_t,
+				 ATH6KL_MAX_WOW_LISTEN_INTL);
+		status = ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx,
+						       interval,
+						       0);
+		if (status) {
+			ath6kl_err("couldn't set listen intervel\n");
+			up(&ar->sem);
+			return status;
+		}
+	}
+
+	status = ath6kl_wmi_connect_cmd(ar->wmi, vif->fw_vif_idx, vif->nw_type,
+					vif->dot11_auth_mode, vif->auth_mode,
+					vif->prwise_crypto,
+					vif->prwise_crypto_len,
+					vif->grp_crypto, vif->grp_crypto_len,
+					vif->ssid_len, vif->ssid,
+					vif->req_bssid, vif->ch_hint,
+					ar->connect_ctrl_flags, nw_subtype);
+
+	if (sme->bg_scan_period == 0) {
+		/* disable background scan if period is 0 */
+		sme->bg_scan_period = 0xffff;
+	} else if (sme->bg_scan_period == -1) {
+		/* configure default value if not specified */
+		sme->bg_scan_period = DEFAULT_BG_SCAN_PERIOD;
+	}
+
+	ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 0, 0,
+				  sme->bg_scan_period, 0, 0, 0, 3, 0, 0, 0);
+
+	up(&ar->sem);
+
+	if (status == -EINVAL) {
+		memset(vif->ssid, 0, sizeof(vif->ssid));
+		vif->ssid_len = 0;
+		ath6kl_err("invalid request\n");
+		return -ENOENT;
+	} else if (status) {
+		ath6kl_err("ath6kl_wmi_connect_cmd failed\n");
+		return -EIO;
+	}
+
+	if ((!(ar->connect_ctrl_flags & CONNECT_DO_WPA_OFFLOAD)) &&
+	    ((vif->auth_mode == WPA_PSK_AUTH) ||
+	     (vif->auth_mode == WPA2_PSK_AUTH))) {
+		mod_timer(&vif->disconnect_timer,
+			  jiffies + msecs_to_jiffies(DISCON_TIMER_INTVAL));
+	}
+
+	ar->connect_ctrl_flags &= ~CONNECT_DO_WPA_OFFLOAD;
+	set_bit(CONNECT_PEND, &vif->flags);
+
+	return 0;
+}
+
+static struct cfg80211_bss *
+ath6kl_add_bss_if_needed(struct ath6kl_vif *vif,
+			 enum network_type nw_type,
+			 const u8 *bssid,
+			 struct ieee80211_channel *chan,
+			 const u8 *beacon_ie,
+			 size_t beacon_ie_len)
+{
+	struct ath6kl *ar = vif->ar;
+	struct cfg80211_bss *bss;
+	u16 cap_val;
+	enum ieee80211_bss_type bss_type;
+	u8 *ie;
+
+	if (nw_type & ADHOC_NETWORK) {
+		cap_val = WLAN_CAPABILITY_IBSS;
+		bss_type = IEEE80211_BSS_TYPE_IBSS;
+	} else {
+		cap_val = WLAN_CAPABILITY_ESS;
+		bss_type = IEEE80211_BSS_TYPE_ESS;
+	}
+
+	bss = cfg80211_get_bss(ar->wiphy, chan, bssid,
+			       vif->ssid, vif->ssid_len,
+			       bss_type, IEEE80211_PRIVACY_ANY);
+	if (bss == NULL) {
+		/*
+		 * Since cfg80211 may not yet know about the BSS,
+		 * generate a partial entry until the first BSS info
+		 * event becomes available.
+		 *
+		 * Prepend SSID element since it is not included in the Beacon
+		 * IEs from the target.
+		 */
+		ie = kmalloc(2 + vif->ssid_len + beacon_ie_len, GFP_KERNEL);
+		if (ie == NULL)
+			return NULL;
+		ie[0] = WLAN_EID_SSID;
+		ie[1] = vif->ssid_len;
+		memcpy(ie + 2, vif->ssid, vif->ssid_len);
+		memcpy(ie + 2 + vif->ssid_len, beacon_ie, beacon_ie_len);
+		bss = cfg80211_inform_bss(ar->wiphy, chan,
+					  CFG80211_BSS_FTYPE_UNKNOWN,
+					  bssid, 0, cap_val, 100,
+					  ie, 2 + vif->ssid_len + beacon_ie_len,
+					  0, GFP_KERNEL);
+		if (bss)
+			ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
+				   "added bss %pM to cfg80211\n", bssid);
+		kfree(ie);
+	} else {
+		ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "cfg80211 already has a bss\n");
+	}
+
+	return bss;
+}
+
+void ath6kl_cfg80211_connect_event(struct ath6kl_vif *vif, u16 channel,
+				   u8 *bssid, u16 listen_intvl,
+				   u16 beacon_intvl,
+				   enum network_type nw_type,
+				   u8 beacon_ie_len, u8 assoc_req_len,
+				   u8 assoc_resp_len, u8 *assoc_info)
+{
+	struct ieee80211_channel *chan;
+	struct ath6kl *ar = vif->ar;
+	struct cfg80211_bss *bss;
+
+	/* capinfo + listen interval */
+	u8 assoc_req_ie_offset = sizeof(u16) + sizeof(u16);
+
+	/* capinfo + status code +  associd */
+	u8 assoc_resp_ie_offset = sizeof(u16) + sizeof(u16) + sizeof(u16);
+
+	u8 *assoc_req_ie = assoc_info + beacon_ie_len + assoc_req_ie_offset;
+	u8 *assoc_resp_ie = assoc_info + beacon_ie_len + assoc_req_len +
+	    assoc_resp_ie_offset;
+
+	assoc_req_len -= assoc_req_ie_offset;
+	assoc_resp_len -= assoc_resp_ie_offset;
+
+	/*
+	 * Store Beacon interval here; DTIM period will be available only once
+	 * a Beacon frame from the AP is seen.
+	 */
+	vif->assoc_bss_beacon_int = beacon_intvl;
+	clear_bit(DTIM_PERIOD_AVAIL, &vif->flags);
+
+	if (nw_type & ADHOC_NETWORK) {
+		if (vif->wdev.iftype != NL80211_IFTYPE_ADHOC) {
+			ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
+				   "%s: ath6k not in ibss mode\n", __func__);
+			return;
+		}
+	}
+
+	if (nw_type & INFRA_NETWORK) {
+		if (vif->wdev.iftype != NL80211_IFTYPE_STATION &&
+		    vif->wdev.iftype != NL80211_IFTYPE_P2P_CLIENT) {
+			ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
+				   "%s: ath6k not in station mode\n", __func__);
+			return;
+		}
+	}
+
+	chan = ieee80211_get_channel(ar->wiphy, (int) channel);
+
+	bss = ath6kl_add_bss_if_needed(vif, nw_type, bssid, chan,
+				       assoc_info, beacon_ie_len);
+	if (!bss) {
+		ath6kl_err("could not add cfg80211 bss entry\n");
+		return;
+	}
+
+	if (nw_type & ADHOC_NETWORK) {
+		ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "ad-hoc %s selected\n",
+			   nw_type & ADHOC_CREATOR ? "creator" : "joiner");
+		cfg80211_ibss_joined(vif->ndev, bssid, chan, GFP_KERNEL);
+		cfg80211_put_bss(ar->wiphy, bss);
+		return;
+	}
+
+	if (vif->sme_state == SME_CONNECTING) {
+		/* inform connect result to cfg80211 */
+		vif->sme_state = SME_CONNECTED;
+		cfg80211_connect_result(vif->ndev, bssid,
+					assoc_req_ie, assoc_req_len,
+					assoc_resp_ie, assoc_resp_len,
+					WLAN_STATUS_SUCCESS, GFP_KERNEL);
+		cfg80211_put_bss(ar->wiphy, bss);
+	} else if (vif->sme_state == SME_CONNECTED) {
+		struct cfg80211_roam_info roam_info = {
+			.bss = bss,
+			.req_ie = assoc_req_ie,
+			.req_ie_len = assoc_req_len,
+			.resp_ie = assoc_resp_ie,
+			.resp_ie_len = assoc_resp_len,
+		};
+		/* inform roam event to cfg80211 */
+		cfg80211_roamed(vif->ndev, &roam_info, GFP_KERNEL);
+	}
+}
+
+static int ath6kl_cfg80211_disconnect(struct wiphy *wiphy,
+				      struct net_device *dev, u16 reason_code)
+{
+	struct ath6kl *ar = ath6kl_priv(dev);
+	struct ath6kl_vif *vif = netdev_priv(dev);
+
+	ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: reason=%u\n", __func__,
+		   reason_code);
+
+	ath6kl_cfg80211_sscan_disable(vif);
+
+	if (!ath6kl_cfg80211_ready(vif))
+		return -EIO;
+
+	if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) {
+		ath6kl_err("busy, destroy in progress\n");
+		return -EBUSY;
+	}
+
+	if (down_interruptible(&ar->sem)) {
+		ath6kl_err("busy, couldn't get access\n");
+		return -ERESTARTSYS;
+	}
+
+	vif->reconnect_flag = 0;
+	ath6kl_disconnect(vif);
+	memset(vif->ssid, 0, sizeof(vif->ssid));
+	vif->ssid_len = 0;
+
+	if (!test_bit(SKIP_SCAN, &ar->flag))
+		memset(vif->req_bssid, 0, sizeof(vif->req_bssid));
+
+	up(&ar->sem);
+
+	return 0;
+}
+
+void ath6kl_cfg80211_disconnect_event(struct ath6kl_vif *vif, u8 reason,
+				      u8 *bssid, u8 assoc_resp_len,
+				      u8 *assoc_info, u16 proto_reason)
+{
+	struct ath6kl *ar = vif->ar;
+
+	if (vif->scan_req) {
+		struct cfg80211_scan_info info = {
+			.aborted = true,
+		};
+
+		cfg80211_scan_done(vif->scan_req, &info);
+		vif->scan_req = NULL;
+	}
+
+	if (vif->nw_type & ADHOC_NETWORK) {
+		if (vif->wdev.iftype != NL80211_IFTYPE_ADHOC)
+			ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
+				   "%s: ath6k not in ibss mode\n", __func__);
+		return;
+	}
+
+	if (vif->nw_type & INFRA_NETWORK) {
+		if (vif->wdev.iftype != NL80211_IFTYPE_STATION &&
+		    vif->wdev.iftype != NL80211_IFTYPE_P2P_CLIENT) {
+			ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
+				   "%s: ath6k not in station mode\n", __func__);
+			return;
+		}
+	}
+
+	clear_bit(CONNECT_PEND, &vif->flags);
+
+	if (vif->sme_state == SME_CONNECTING) {
+		cfg80211_connect_result(vif->ndev,
+					bssid, NULL, 0,
+					NULL, 0,
+					WLAN_STATUS_UNSPECIFIED_FAILURE,
+					GFP_KERNEL);
+	} else if (vif->sme_state == SME_CONNECTED) {
+		cfg80211_disconnected(vif->ndev, proto_reason,
+				      NULL, 0, false, GFP_KERNEL);
+	}
+
+	vif->sme_state = SME_DISCONNECTED;
+
+	/*
+	 * Send a disconnect command to target when a disconnect event is
+	 * received with reason code other than 3 (DISCONNECT_CMD - disconnect
+	 * request from host) to make the firmware stop trying to connect even
+	 * after giving disconnect event. There will be one more disconnect
+	 * event for this disconnect command with reason code DISCONNECT_CMD
+	 * which won't be notified to cfg80211.
+	 */
+	if (reason != DISCONNECT_CMD)
+		ath6kl_wmi_disconnect_cmd(ar->wmi, vif->fw_vif_idx);
+}
+
+static int ath6kl_set_probed_ssids(struct ath6kl *ar,
+				   struct ath6kl_vif *vif,
+				   struct cfg80211_ssid *ssids, int n_ssids,
+				   struct cfg80211_match_set *match_set,
+				   int n_match_ssid)
+{
+	u8 i, j, index_to_add, ssid_found = false;
+	struct ath6kl_cfg80211_match_probe_ssid ssid_list[MAX_PROBED_SSIDS];
+
+	memset(ssid_list, 0, sizeof(ssid_list));
+
+	if (n_ssids > MAX_PROBED_SSIDS ||
+	    n_match_ssid > MAX_PROBED_SSIDS)
+		return -EINVAL;
+
+	for (i = 0; i < n_ssids; i++) {
+		memcpy(ssid_list[i].ssid.ssid,
+		       ssids[i].ssid,
+		       ssids[i].ssid_len);
+		ssid_list[i].ssid.ssid_len = ssids[i].ssid_len;
+
+		if (ssids[i].ssid_len)
+			ssid_list[i].flag = SPECIFIC_SSID_FLAG;
+		else
+			ssid_list[i].flag = ANY_SSID_FLAG;
+
+		if (ar->wiphy->max_match_sets != 0 && n_match_ssid == 0)
+			ssid_list[i].flag |= MATCH_SSID_FLAG;
+	}
+
+	index_to_add = i;
+
+	for (i = 0; i < n_match_ssid; i++) {
+		ssid_found = false;
+
+		for (j = 0; j < n_ssids; j++) {
+			if ((match_set[i].ssid.ssid_len ==
+			     ssid_list[j].ssid.ssid_len) &&
+			    (!memcmp(ssid_list[j].ssid.ssid,
+				     match_set[i].ssid.ssid,
+				     match_set[i].ssid.ssid_len))) {
+				ssid_list[j].flag |= MATCH_SSID_FLAG;
+				ssid_found = true;
+				break;
+			}
+		}
+
+		if (ssid_found)
+			continue;
+
+		if (index_to_add >= MAX_PROBED_SSIDS)
+			continue;
+
+		ssid_list[index_to_add].ssid.ssid_len =
+			match_set[i].ssid.ssid_len;
+		memcpy(ssid_list[index_to_add].ssid.ssid,
+		       match_set[i].ssid.ssid,
+		       match_set[i].ssid.ssid_len);
+		ssid_list[index_to_add].flag |= MATCH_SSID_FLAG;
+		index_to_add++;
+	}
+
+	for (i = 0; i < index_to_add; i++) {
+		ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx, i,
+					  ssid_list[i].flag,
+					  ssid_list[i].ssid.ssid_len,
+					  ssid_list[i].ssid.ssid);
+	}
+
+	/* Make sure no old entries are left behind */
+	for (i = index_to_add; i < MAX_PROBED_SSIDS; i++) {
+		ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx, i,
+					  DISABLE_SSID_FLAG, 0, NULL);
+	}
+
+	return 0;
+}
+
+static int ath6kl_cfg80211_scan(struct wiphy *wiphy,
+				struct cfg80211_scan_request *request)
+{
+	struct ath6kl_vif *vif = ath6kl_vif_from_wdev(request->wdev);
+	struct ath6kl *ar = ath6kl_priv(vif->ndev);
+	s8 n_channels = 0;
+	u16 *channels = NULL;
+	int ret = 0;
+	u32 force_fg_scan = 0;
+
+	if (!ath6kl_cfg80211_ready(vif))
+		return -EIO;
+
+	ath6kl_cfg80211_sscan_disable(vif);
+
+	if (!ar->usr_bss_filter) {
+		clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags);
+		ret = ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
+					       ALL_BSS_FILTER, 0);
+		if (ret) {
+			ath6kl_err("couldn't set bss filtering\n");
+			return ret;
+		}
+	}
+
+	ret = ath6kl_set_probed_ssids(ar, vif, request->ssids,
+				      request->n_ssids, NULL, 0);
+	if (ret < 0)
+		return ret;
+
+	/* this also clears IE in fw if it's not set */
+	ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
+				       WMI_FRAME_PROBE_REQ,
+				       request->ie, request->ie_len);
+	if (ret) {
+		ath6kl_err("failed to set Probe Request appie for scan\n");
+		return ret;
+	}
+
+	/*
+	 * Scan only the requested channels if the request specifies a set of
+	 * channels. If the list is longer than the target supports, do not
+	 * configure the list and instead, scan all available channels.
+	 */
+	if (request->n_channels > 0 &&
+	    request->n_channels <= WMI_MAX_CHANNELS) {
+		u8 i;
+
+		n_channels = request->n_channels;
+
+		channels = kcalloc(n_channels, sizeof(u16), GFP_KERNEL);
+		if (channels == NULL) {
+			ath6kl_warn("failed to set scan channels, scan all channels");
+			n_channels = 0;
+		}
+
+		for (i = 0; i < n_channels; i++)
+			channels[i] = request->channels[i]->center_freq;
+	}
+
+	if (test_bit(CONNECTED, &vif->flags))
+		force_fg_scan = 1;
+
+	vif->scan_req = request;
+
+	ret = ath6kl_wmi_beginscan_cmd(ar->wmi, vif->fw_vif_idx,
+				       WMI_LONG_SCAN, force_fg_scan,
+				       false, 0,
+				       ATH6KL_FG_SCAN_INTERVAL,
+				       n_channels, channels,
+				       request->no_cck,
+				       request->rates);
+	if (ret) {
+		ath6kl_err("failed to start scan: %d\n", ret);
+		vif->scan_req = NULL;
+	}
+
+	kfree(channels);
+
+	return ret;
+}
+
+void ath6kl_cfg80211_scan_complete_event(struct ath6kl_vif *vif, bool aborted)
+{
+	struct ath6kl *ar = vif->ar;
+	struct cfg80211_scan_info info = {
+		.aborted = aborted,
+	};
+	int i;
+
+	ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: status%s\n", __func__,
+		   aborted ? " aborted" : "");
+
+	if (!vif->scan_req)
+		return;
+
+	if (aborted)
+		goto out;
+
+	if (vif->scan_req->n_ssids && vif->scan_req->ssids[0].ssid_len) {
+		for (i = 0; i < vif->scan_req->n_ssids; i++) {
+			ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx,
+						  i, DISABLE_SSID_FLAG,
+						  0, NULL);
+		}
+	}
+
+out:
+	cfg80211_scan_done(vif->scan_req, &info);
+	vif->scan_req = NULL;
+}
+
+void ath6kl_cfg80211_ch_switch_notify(struct ath6kl_vif *vif, int freq,
+				      enum wmi_phy_mode mode)
+{
+	struct cfg80211_chan_def chandef;
+
+	ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
+		   "channel switch notify nw_type %d freq %d mode %d\n",
+		   vif->nw_type, freq, mode);
+
+	cfg80211_chandef_create(&chandef,
+				ieee80211_get_channel(vif->ar->wiphy, freq),
+				(mode == WMI_11G_HT20 &&
+				 ath6kl_band_2ghz.ht_cap.ht_supported) ?
+					NL80211_CHAN_HT20 : NL80211_CHAN_NO_HT);
+
+	mutex_lock(&vif->wdev.mtx);
+	cfg80211_ch_switch_notify(vif->ndev, &chandef);
+	mutex_unlock(&vif->wdev.mtx);
+}
+
+static int ath6kl_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev,
+				   u8 key_index, bool pairwise,
+				   const u8 *mac_addr,
+				   struct key_params *params)
+{
+	struct ath6kl *ar = ath6kl_priv(ndev);
+	struct ath6kl_vif *vif = netdev_priv(ndev);
+	struct ath6kl_key *key = NULL;
+	int seq_len;
+	u8 key_usage;
+	u8 key_type;
+
+	if (!ath6kl_cfg80211_ready(vif))
+		return -EIO;
+
+	if (params->cipher == CCKM_KRK_CIPHER_SUITE) {
+		if (params->key_len != WMI_KRK_LEN)
+			return -EINVAL;
+		return ath6kl_wmi_add_krk_cmd(ar->wmi, vif->fw_vif_idx,
+					      params->key);
+	}
+
+	if (key_index > WMI_MAX_KEY_INDEX) {
+		ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
+			   "%s: key index %d out of bounds\n", __func__,
+			   key_index);
+		return -ENOENT;
+	}
+
+	key = &vif->keys[key_index];
+	memset(key, 0, sizeof(struct ath6kl_key));
+
+	if (pairwise)
+		key_usage = PAIRWISE_USAGE;
+	else
+		key_usage = GROUP_USAGE;
+
+	seq_len = params->seq_len;
+	if (params->cipher == WLAN_CIPHER_SUITE_SMS4 &&
+	    seq_len > ATH6KL_KEY_SEQ_LEN) {
+		/* Only first half of the WPI PN is configured */
+		seq_len = ATH6KL_KEY_SEQ_LEN;
+	}
+	if (params->key_len > WLAN_MAX_KEY_LEN ||
+	    seq_len > sizeof(key->seq))
+		return -EINVAL;
+
+	key->key_len = params->key_len;
+	memcpy(key->key, params->key, key->key_len);
+	key->seq_len = seq_len;
+	memcpy(key->seq, params->seq, key->seq_len);
+	key->cipher = params->cipher;
+
+	switch (key->cipher) {
+	case WLAN_CIPHER_SUITE_WEP40:
+	case WLAN_CIPHER_SUITE_WEP104:
+		key_type = WEP_CRYPT;
+		break;
+
+	case WLAN_CIPHER_SUITE_TKIP:
+		key_type = TKIP_CRYPT;
+		break;
+
+	case WLAN_CIPHER_SUITE_CCMP:
+		key_type = AES_CRYPT;
+		break;
+	case WLAN_CIPHER_SUITE_SMS4:
+		key_type = WAPI_CRYPT;
+		break;
+
+	default:
+		return -ENOTSUPP;
+	}
+
+	if (((vif->auth_mode == WPA_PSK_AUTH) ||
+	     (vif->auth_mode == WPA2_PSK_AUTH)) &&
+	    (key_usage & GROUP_USAGE))
+		del_timer(&vif->disconnect_timer);
+
+	ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
+		   "%s: index %d, key_len %d, key_type 0x%x, key_usage 0x%x, seq_len %d\n",
+		   __func__, key_index, key->key_len, key_type,
+		   key_usage, key->seq_len);
+
+	if (vif->nw_type == AP_NETWORK && !pairwise &&
+	    (key_type == TKIP_CRYPT || key_type == AES_CRYPT ||
+	     key_type == WAPI_CRYPT)) {
+		ar->ap_mode_bkey.valid = true;
+		ar->ap_mode_bkey.key_index = key_index;
+		ar->ap_mode_bkey.key_type = key_type;
+		ar->ap_mode_bkey.key_len = key->key_len;
+		memcpy(ar->ap_mode_bkey.key, key->key, key->key_len);
+		if (!test_bit(CONNECTED, &vif->flags)) {
+			ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
+				   "Delay initial group key configuration until AP mode has been started\n");
+			/*
+			 * The key will be set in ath6kl_connect_ap_mode() once
+			 * the connected event is received from the target.
+			 */
+			return 0;
+		}
+	}
+
+	if (vif->next_mode == AP_NETWORK && key_type == WEP_CRYPT &&
+	    !test_bit(CONNECTED, &vif->flags)) {
+		/*
+		 * Store the key locally so that it can be re-configured after
+		 * the AP mode has properly started
+		 * (ath6kl_install_statioc_wep_keys).
+		 */
+		ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
+			   "Delay WEP key configuration until AP mode has been started\n");
+		vif->wep_key_list[key_index].key_len = key->key_len;
+		memcpy(vif->wep_key_list[key_index].key, key->key,
+		       key->key_len);
+		return 0;
+	}
+
+	return ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx, key_index,
+				     key_type, key_usage, key->key_len,
+				     key->seq, key->seq_len, key->key,
+				     KEY_OP_INIT_VAL,
+				     (u8 *) mac_addr, SYNC_BOTH_WMIFLAG);
+}
+
+static int ath6kl_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev,
+				   u8 key_index, bool pairwise,
+				   const u8 *mac_addr)
+{
+	struct ath6kl *ar = ath6kl_priv(ndev);
+	struct ath6kl_vif *vif = netdev_priv(ndev);
+
+	ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index);
+
+	if (!ath6kl_cfg80211_ready(vif))
+		return -EIO;
+
+	if (key_index > WMI_MAX_KEY_INDEX) {
+		ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
+			   "%s: key index %d out of bounds\n", __func__,
+			   key_index);
+		return -ENOENT;
+	}
+
+	if (!vif->keys[key_index].key_len) {
+		ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
+			   "%s: index %d is empty\n", __func__, key_index);
+		return 0;
+	}
+
+	vif->keys[key_index].key_len = 0;
+
+	return ath6kl_wmi_deletekey_cmd(ar->wmi, vif->fw_vif_idx, key_index);
+}
+
+static int ath6kl_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 *))
+{
+	struct ath6kl_vif *vif = netdev_priv(ndev);
+	struct ath6kl_key *key = NULL;
+	struct key_params params;
+
+	ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index);
+
+	if (!ath6kl_cfg80211_ready(vif))
+		return -EIO;
+
+	if (key_index > WMI_MAX_KEY_INDEX) {
+		ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
+			   "%s: key index %d out of bounds\n", __func__,
+			   key_index);
+		return -ENOENT;
+	}
+
+	key = &vif->keys[key_index];
+	memset(&params, 0, sizeof(params));
+	params.cipher = key->cipher;
+	params.key_len = key->key_len;
+	params.seq_len = key->seq_len;
+	params.seq = key->seq;
+	params.key = key->key;
+
+	callback(cookie, &params);
+
+	return key->key_len ? 0 : -ENOENT;
+}
+
+static int ath6kl_cfg80211_set_default_key(struct wiphy *wiphy,
+					   struct net_device *ndev,
+					   u8 key_index, bool unicast,
+					   bool multicast)
+{
+	struct ath6kl *ar = ath6kl_priv(ndev);
+	struct ath6kl_vif *vif = netdev_priv(ndev);
+	struct ath6kl_key *key = NULL;
+	u8 key_usage;
+	enum crypto_type key_type = NONE_CRYPT;
+
+	ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index);
+
+	if (!ath6kl_cfg80211_ready(vif))
+		return -EIO;
+
+	if (key_index > WMI_MAX_KEY_INDEX) {
+		ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
+			   "%s: key index %d out of bounds\n",
+			   __func__, key_index);
+		return -ENOENT;
+	}
+
+	if (!vif->keys[key_index].key_len) {
+		ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: invalid key index %d\n",
+			   __func__, key_index);
+		return -EINVAL;
+	}
+
+	vif->def_txkey_index = key_index;
+	key = &vif->keys[vif->def_txkey_index];
+	key_usage = GROUP_USAGE;
+	if (vif->prwise_crypto == WEP_CRYPT)
+		key_usage |= TX_USAGE;
+	if (unicast)
+		key_type = vif->prwise_crypto;
+	if (multicast)
+		key_type = vif->grp_crypto;
+
+	if (vif->next_mode == AP_NETWORK && !test_bit(CONNECTED, &vif->flags))
+		return 0; /* Delay until AP mode has been started */
+
+	return ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx,
+				     vif->def_txkey_index,
+				     key_type, key_usage,
+				     key->key_len, key->seq, key->seq_len,
+				     key->key,
+				     KEY_OP_INIT_VAL, NULL,
+				     SYNC_BOTH_WMIFLAG);
+}
+
+void ath6kl_cfg80211_tkip_micerr_event(struct ath6kl_vif *vif, u8 keyid,
+				       bool ismcast)
+{
+	ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
+		   "%s: keyid %d, ismcast %d\n", __func__, keyid, ismcast);
+
+	cfg80211_michael_mic_failure(vif->ndev, vif->bssid,
+				     (ismcast ? NL80211_KEYTYPE_GROUP :
+				      NL80211_KEYTYPE_PAIRWISE), keyid, NULL,
+				     GFP_KERNEL);
+}
+
+static int ath6kl_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
+{
+	struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy);
+	struct ath6kl_vif *vif;
+	int ret;
+
+	ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: changed 0x%x\n", __func__,
+		   changed);
+
+	vif = ath6kl_vif_first(ar);
+	if (!vif)
+		return -EIO;
+
+	if (!ath6kl_cfg80211_ready(vif))
+		return -EIO;
+
+	if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
+		ret = ath6kl_wmi_set_rts_cmd(ar->wmi, wiphy->rts_threshold);
+		if (ret != 0) {
+			ath6kl_err("ath6kl_wmi_set_rts_cmd failed\n");
+			return -EIO;
+		}
+	}
+
+	return 0;
+}
+
+static int ath6kl_cfg80211_set_txpower(struct wiphy *wiphy,
+				       struct wireless_dev *wdev,
+				       enum nl80211_tx_power_setting type,
+				       int mbm)
+{
+	struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy);
+	struct ath6kl_vif *vif;
+	int dbm = MBM_TO_DBM(mbm);
+
+	ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type 0x%x, dbm %d\n", __func__,
+		   type, dbm);
+
+	vif = ath6kl_vif_first(ar);
+	if (!vif)
+		return -EIO;
+
+	if (!ath6kl_cfg80211_ready(vif))
+		return -EIO;
+
+	switch (type) {
+	case NL80211_TX_POWER_AUTOMATIC:
+		return 0;
+	case NL80211_TX_POWER_LIMITED:
+		ar->tx_pwr = dbm;
+		break;
+	default:
+		ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type 0x%x not supported\n",
+			   __func__, type);
+		return -EOPNOTSUPP;
+	}
+
+	ath6kl_wmi_set_tx_pwr_cmd(ar->wmi, vif->fw_vif_idx, dbm);
+
+	return 0;
+}
+
+static int ath6kl_cfg80211_get_txpower(struct wiphy *wiphy,
+				       struct wireless_dev *wdev,
+				       int *dbm)
+{
+	struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy);
+	struct ath6kl_vif *vif;
+
+	vif = ath6kl_vif_first(ar);
+	if (!vif)
+		return -EIO;
+
+	if (!ath6kl_cfg80211_ready(vif))
+		return -EIO;
+
+	if (test_bit(CONNECTED, &vif->flags)) {
+		ar->tx_pwr = 255;
+
+		if (ath6kl_wmi_get_tx_pwr_cmd(ar->wmi, vif->fw_vif_idx) != 0) {
+			ath6kl_err("ath6kl_wmi_get_tx_pwr_cmd failed\n");
+			return -EIO;
+		}
+
+		wait_event_interruptible_timeout(ar->event_wq, ar->tx_pwr != 255,
+						 5 * HZ);
+
+		if (signal_pending(current)) {
+			ath6kl_err("target did not respond\n");
+			return -EINTR;
+		}
+	}
+
+	*dbm = ar->tx_pwr;
+	return 0;
+}
+
+static int ath6kl_cfg80211_set_power_mgmt(struct wiphy *wiphy,
+					  struct net_device *dev,
+					  bool pmgmt, int timeout)
+{
+	struct ath6kl *ar = ath6kl_priv(dev);
+	struct wmi_power_mode_cmd mode;
+	struct ath6kl_vif *vif = netdev_priv(dev);
+
+	ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: pmgmt %d, timeout %d\n",
+		   __func__, pmgmt, timeout);
+
+	if (!ath6kl_cfg80211_ready(vif))
+		return -EIO;
+
+	if (pmgmt) {
+		ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: rec power\n", __func__);
+		mode.pwr_mode = REC_POWER;
+	} else {
+		ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: max perf\n", __func__);
+		mode.pwr_mode = MAX_PERF_POWER;
+	}
+
+	if (ath6kl_wmi_powermode_cmd(ar->wmi, vif->fw_vif_idx,
+				     mode.pwr_mode) != 0) {
+		ath6kl_err("wmi_powermode_cmd failed\n");
+		return -EIO;
+	}
+
+	return 0;
+}
+
+static struct wireless_dev *ath6kl_cfg80211_add_iface(struct wiphy *wiphy,
+						      const char *name,
+						      unsigned char name_assign_type,
+						      enum nl80211_iftype type,
+						      struct vif_params *params)
+{
+	struct ath6kl *ar = wiphy_priv(wiphy);
+	struct wireless_dev *wdev;
+	u8 if_idx, nw_type;
+
+	if (ar->num_vif == ar->vif_max) {
+		ath6kl_err("Reached maximum number of supported vif\n");
+		return ERR_PTR(-EINVAL);
+	}
+
+	if (!ath6kl_is_valid_iftype(ar, type, &if_idx, &nw_type)) {
+		ath6kl_err("Not a supported interface type\n");
+		return ERR_PTR(-EINVAL);
+	}
+
+	wdev = ath6kl_interface_add(ar, name, name_assign_type, type, if_idx, nw_type);
+	if (!wdev)
+		return ERR_PTR(-ENOMEM);
+
+	ar->num_vif++;
+
+	return wdev;
+}
+
+static int ath6kl_cfg80211_del_iface(struct wiphy *wiphy,
+				     struct wireless_dev *wdev)
+{
+	struct ath6kl *ar = wiphy_priv(wiphy);
+	struct ath6kl_vif *vif = netdev_priv(wdev->netdev);
+
+	spin_lock_bh(&ar->list_lock);
+	list_del(&vif->list);
+	spin_unlock_bh(&ar->list_lock);
+
+	ath6kl_cfg80211_vif_stop(vif, test_bit(WMI_READY, &ar->flag));
+
+	rtnl_lock();
+	ath6kl_cfg80211_vif_cleanup(vif);
+	rtnl_unlock();
+
+	return 0;
+}
+
+static int ath6kl_cfg80211_change_iface(struct wiphy *wiphy,
+					struct net_device *ndev,
+					enum nl80211_iftype type,
+					struct vif_params *params)
+{
+	struct ath6kl_vif *vif = netdev_priv(ndev);
+	int i;
+
+	ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type %u\n", __func__, type);
+
+	/*
+	 * Don't bring up p2p on an interface which is not initialized
+	 * for p2p operation where fw does not have capability to switch
+	 * dynamically between non-p2p and p2p type interface.
+	 */
+	if (!test_bit(ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX,
+		      vif->ar->fw_capabilities) &&
+	    (type == NL80211_IFTYPE_P2P_CLIENT ||
+	     type == NL80211_IFTYPE_P2P_GO)) {
+		if (vif->ar->vif_max == 1) {
+			if (vif->fw_vif_idx != 0)
+				return -EINVAL;
+			else
+				goto set_iface_type;
+		}
+
+		for (i = vif->ar->max_norm_iface; i < vif->ar->vif_max; i++) {
+			if (i == vif->fw_vif_idx)
+				break;
+		}
+
+		if (i == vif->ar->vif_max) {
+			ath6kl_err("Invalid interface to bring up P2P\n");
+			return -EINVAL;
+		}
+	}
+
+	/* need to clean up enhanced bmiss detection fw state */
+	ath6kl_cfg80211_sta_bmiss_enhance(vif, false);
+
+set_iface_type:
+	switch (type) {
+	case NL80211_IFTYPE_STATION:
+	case NL80211_IFTYPE_P2P_CLIENT:
+		vif->next_mode = INFRA_NETWORK;
+		break;
+	case NL80211_IFTYPE_ADHOC:
+		vif->next_mode = ADHOC_NETWORK;
+		break;
+	case NL80211_IFTYPE_AP:
+	case NL80211_IFTYPE_P2P_GO:
+		vif->next_mode = AP_NETWORK;
+		break;
+	default:
+		ath6kl_err("invalid interface type %u\n", type);
+		return -EOPNOTSUPP;
+	}
+
+	vif->wdev.iftype = type;
+
+	return 0;
+}
+
+static int ath6kl_cfg80211_join_ibss(struct wiphy *wiphy,
+				     struct net_device *dev,
+				     struct cfg80211_ibss_params *ibss_param)
+{
+	struct ath6kl *ar = ath6kl_priv(dev);
+	struct ath6kl_vif *vif = netdev_priv(dev);
+	int status;
+
+	if (!ath6kl_cfg80211_ready(vif))
+		return -EIO;
+
+	vif->ssid_len = ibss_param->ssid_len;
+	memcpy(vif->ssid, ibss_param->ssid, vif->ssid_len);
+
+	if (ibss_param->chandef.chan)
+		vif->ch_hint = ibss_param->chandef.chan->center_freq;
+
+	if (ibss_param->channel_fixed) {
+		/*
+		 * TODO: channel_fixed: The channel should be fixed, do not
+		 * search for IBSSs to join on other channels. Target
+		 * firmware does not support this feature, needs to be
+		 * updated.
+		 */
+		return -EOPNOTSUPP;
+	}
+
+	memset(vif->req_bssid, 0, sizeof(vif->req_bssid));
+	if (ibss_param->bssid && !is_broadcast_ether_addr(ibss_param->bssid))
+		memcpy(vif->req_bssid, ibss_param->bssid,
+		       sizeof(vif->req_bssid));
+
+	ath6kl_set_wpa_version(vif, 0);
+
+	status = ath6kl_set_auth_type(vif, NL80211_AUTHTYPE_OPEN_SYSTEM);
+	if (status)
+		return status;
+
+	if (ibss_param->privacy) {
+		ath6kl_set_cipher(vif, WLAN_CIPHER_SUITE_WEP40, true);
+		ath6kl_set_cipher(vif, WLAN_CIPHER_SUITE_WEP40, false);
+	} else {
+		ath6kl_set_cipher(vif, 0, true);
+		ath6kl_set_cipher(vif, 0, false);
+	}
+
+	vif->nw_type = vif->next_mode;
+
+	ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
+		   "%s: connect called with authmode %d dot11 auth %d"
+		   " PW crypto %d PW crypto len %d GRP crypto %d"
+		   " GRP crypto len %d channel hint %u\n",
+		   __func__,
+		   vif->auth_mode, vif->dot11_auth_mode, vif->prwise_crypto,
+		   vif->prwise_crypto_len, vif->grp_crypto,
+		   vif->grp_crypto_len, vif->ch_hint);
+
+	status = ath6kl_wmi_connect_cmd(ar->wmi, vif->fw_vif_idx, vif->nw_type,
+					vif->dot11_auth_mode, vif->auth_mode,
+					vif->prwise_crypto,
+					vif->prwise_crypto_len,
+					vif->grp_crypto, vif->grp_crypto_len,
+					vif->ssid_len, vif->ssid,
+					vif->req_bssid, vif->ch_hint,
+					ar->connect_ctrl_flags, SUBTYPE_NONE);
+	set_bit(CONNECT_PEND, &vif->flags);
+
+	return 0;
+}
+
+static int ath6kl_cfg80211_leave_ibss(struct wiphy *wiphy,
+				      struct net_device *dev)
+{
+	struct ath6kl_vif *vif = netdev_priv(dev);
+
+	if (!ath6kl_cfg80211_ready(vif))
+		return -EIO;
+
+	ath6kl_disconnect(vif);
+	memset(vif->ssid, 0, sizeof(vif->ssid));
+	vif->ssid_len = 0;
+
+	return 0;
+}
+
+static const u32 cipher_suites[] = {
+	WLAN_CIPHER_SUITE_WEP40,
+	WLAN_CIPHER_SUITE_WEP104,
+	WLAN_CIPHER_SUITE_TKIP,
+	WLAN_CIPHER_SUITE_CCMP,
+	CCKM_KRK_CIPHER_SUITE,
+	WLAN_CIPHER_SUITE_SMS4,
+};
+
+static bool is_rate_legacy(s32 rate)
+{
+	static const s32 legacy[] = { 1000, 2000, 5500, 11000,
+		6000, 9000, 12000, 18000, 24000,
+		36000, 48000, 54000
+	};
+	u8 i;
+
+	for (i = 0; i < ARRAY_SIZE(legacy); i++)
+		if (rate == legacy[i])
+			return true;
+
+	return false;
+}
+
+static bool is_rate_ht20(s32 rate, u8 *mcs, bool *sgi)
+{
+	static const s32 ht20[] = { 6500, 13000, 19500, 26000, 39000,
+		52000, 58500, 65000, 72200
+	};
+	u8 i;
+
+	for (i = 0; i < ARRAY_SIZE(ht20); i++) {
+		if (rate == ht20[i]) {
+			if (i == ARRAY_SIZE(ht20) - 1)
+				/* last rate uses sgi */
+				*sgi = true;
+			else
+				*sgi = false;
+
+			*mcs = i;
+			return true;
+		}
+	}
+	return false;
+}
+
+static bool is_rate_ht40(s32 rate, u8 *mcs, bool *sgi)
+{
+	static const s32 ht40[] = { 13500, 27000, 40500, 54000,
+		81000, 108000, 121500, 135000,
+		150000
+	};
+	u8 i;
+
+	for (i = 0; i < ARRAY_SIZE(ht40); i++) {
+		if (rate == ht40[i]) {
+			if (i == ARRAY_SIZE(ht40) - 1)
+				/* last rate uses sgi */
+				*sgi = true;
+			else
+				*sgi = false;
+
+			*mcs = i;
+			return true;
+		}
+	}
+
+	return false;
+}
+
+static int ath6kl_get_station(struct wiphy *wiphy, struct net_device *dev,
+			      const u8 *mac, struct station_info *sinfo)
+{
+	struct ath6kl *ar = ath6kl_priv(dev);
+	struct ath6kl_vif *vif = netdev_priv(dev);
+	long left;
+	bool sgi;
+	s32 rate;
+	int ret;
+	u8 mcs;
+
+	if (memcmp(mac, vif->bssid, ETH_ALEN) != 0)
+		return -ENOENT;
+
+	if (down_interruptible(&ar->sem))
+		return -EBUSY;
+
+	set_bit(STATS_UPDATE_PEND, &vif->flags);
+
+	ret = ath6kl_wmi_get_stats_cmd(ar->wmi, vif->fw_vif_idx);
+
+	if (ret != 0) {
+		up(&ar->sem);
+		return -EIO;
+	}
+
+	left = wait_event_interruptible_timeout(ar->event_wq,
+						!test_bit(STATS_UPDATE_PEND,
+							  &vif->flags),
+						WMI_TIMEOUT);
+
+	up(&ar->sem);
+
+	if (left == 0)
+		return -ETIMEDOUT;
+	else if (left < 0)
+		return left;
+
+	if (vif->target_stats.rx_byte) {
+		sinfo->rx_bytes = vif->target_stats.rx_byte;
+		sinfo->filled |= BIT_ULL(NL80211_STA_INFO_RX_BYTES64);
+		sinfo->rx_packets = vif->target_stats.rx_pkt;
+		sinfo->filled |= BIT_ULL(NL80211_STA_INFO_RX_PACKETS);
+	}
+
+	if (vif->target_stats.tx_byte) {
+		sinfo->tx_bytes = vif->target_stats.tx_byte;
+		sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BYTES64);
+		sinfo->tx_packets = vif->target_stats.tx_pkt;
+		sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_PACKETS);
+	}
+
+	sinfo->signal = vif->target_stats.cs_rssi;
+	sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL);
+
+	rate = vif->target_stats.tx_ucast_rate;
+
+	if (is_rate_legacy(rate)) {
+		sinfo->txrate.legacy = rate / 100;
+	} else if (is_rate_ht20(rate, &mcs, &sgi)) {
+		if (sgi) {
+			sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
+			sinfo->txrate.mcs = mcs - 1;
+		} else {
+			sinfo->txrate.mcs = mcs;
+		}
+
+		sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
+		sinfo->txrate.bw = RATE_INFO_BW_20;
+	} else if (is_rate_ht40(rate, &mcs, &sgi)) {
+		if (sgi) {
+			sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
+			sinfo->txrate.mcs = mcs - 1;
+		} else {
+			sinfo->txrate.mcs = mcs;
+		}
+
+		sinfo->txrate.bw = RATE_INFO_BW_40;
+		sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
+	} else {
+		ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
+			   "invalid rate from stats: %d\n", rate);
+		ath6kl_debug_war(ar, ATH6KL_WAR_INVALID_RATE);
+		return 0;
+	}
+
+	sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE);
+
+	if (test_bit(CONNECTED, &vif->flags) &&
+	    test_bit(DTIM_PERIOD_AVAIL, &vif->flags) &&
+	    vif->nw_type == INFRA_NETWORK) {
+		sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BSS_PARAM);
+		sinfo->bss_param.flags = 0;
+		sinfo->bss_param.dtim_period = vif->assoc_bss_dtim_period;
+		sinfo->bss_param.beacon_interval = vif->assoc_bss_beacon_int;
+	}
+
+	return 0;
+}
+
+static int ath6kl_set_pmksa(struct wiphy *wiphy, struct net_device *netdev,
+			    struct cfg80211_pmksa *pmksa)
+{
+	struct ath6kl *ar = ath6kl_priv(netdev);
+	struct ath6kl_vif *vif = netdev_priv(netdev);
+
+	return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, pmksa->bssid,
+				       pmksa->pmkid, true);
+}
+
+static int ath6kl_del_pmksa(struct wiphy *wiphy, struct net_device *netdev,
+			    struct cfg80211_pmksa *pmksa)
+{
+	struct ath6kl *ar = ath6kl_priv(netdev);
+	struct ath6kl_vif *vif = netdev_priv(netdev);
+
+	return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, pmksa->bssid,
+				       pmksa->pmkid, false);
+}
+
+static int ath6kl_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev)
+{
+	struct ath6kl *ar = ath6kl_priv(netdev);
+	struct ath6kl_vif *vif = netdev_priv(netdev);
+
+	if (test_bit(CONNECTED, &vif->flags))
+		return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx,
+					       vif->bssid, NULL, false);
+	return 0;
+}
+
+static int ath6kl_wow_usr(struct ath6kl *ar, struct ath6kl_vif *vif,
+			  struct cfg80211_wowlan *wow, u32 *filter)
+{
+	int ret, pos;
+	u8 mask[WOW_PATTERN_SIZE];
+	u16 i;
+
+	/* Configure the patterns that we received from the user. */
+	for (i = 0; i < wow->n_patterns; i++) {
+		/*
+		 * Convert given nl80211 specific mask value to equivalent
+		 * driver specific mask value and send it to the chip along
+		 * with patterns. For example, If the mask value defined in
+		 * struct cfg80211_wowlan is 0xA (equivalent binary is 1010),
+		 * then equivalent driver specific mask value is
+		 * "0xFF 0x00 0xFF 0x00".
+		 */
+		memset(&mask, 0, sizeof(mask));
+		for (pos = 0; pos < wow->patterns[i].pattern_len; pos++) {
+			if (wow->patterns[i].mask[pos / 8] & (0x1 << (pos % 8)))
+				mask[pos] = 0xFF;
+		}
+		/*
+		 * Note: Pattern's offset is not passed as part of wowlan
+		 * parameter from CFG layer. So it's always passed as ZERO
+		 * to the firmware. It means, given WOW patterns are always
+		 * matched from the first byte of received pkt in the firmware.
+		 */
+		ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
+				vif->fw_vif_idx, WOW_LIST_ID,
+				wow->patterns[i].pattern_len,
+				0 /* pattern offset */,
+				wow->patterns[i].pattern, mask);
+		if (ret)
+			return ret;
+	}
+
+	if (wow->disconnect)
+		*filter |= WOW_FILTER_OPTION_NWK_DISASSOC;
+
+	if (wow->magic_pkt)
+		*filter |= WOW_FILTER_OPTION_MAGIC_PACKET;
+
+	if (wow->gtk_rekey_failure)
+		*filter |= WOW_FILTER_OPTION_GTK_ERROR;
+
+	if (wow->eap_identity_req)
+		*filter |= WOW_FILTER_OPTION_EAP_REQ;
+
+	if (wow->four_way_handshake)
+		*filter |= WOW_FILTER_OPTION_8021X_4WAYHS;
+
+	return 0;
+}
+
+static int ath6kl_wow_ap(struct ath6kl *ar, struct ath6kl_vif *vif)
+{
+	static const u8 unicst_pattern[] = { 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+		0x00, 0x08 };
+	static const u8 unicst_mask[] = { 0x01, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+		0x00, 0x7f };
+	u8 unicst_offset = 0;
+	static const u8 arp_pattern[] = { 0x08, 0x06 };
+	static const u8 arp_mask[] = { 0xff, 0xff };
+	u8 arp_offset = 20;
+	static const u8 discvr_pattern[] = { 0xe0, 0x00, 0x00, 0xf8 };
+	static const u8 discvr_mask[] = { 0xf0, 0x00, 0x00, 0xf8 };
+	u8 discvr_offset = 38;
+	static const u8 dhcp_pattern[] = { 0xff, 0xff, 0xff, 0xff,
+		0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x00, 0x43 /* port 67 */ };
+	static const u8 dhcp_mask[] = { 0xff, 0xff, 0xff, 0xff,
+		0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff,
+		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0xff, 0xff /* port 67 */ };
+	u8 dhcp_offset = 0;
+	int ret;
+
+	/* Setup unicast IP, EAPOL-like and ARP pkt pattern */
+	ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
+			vif->fw_vif_idx, WOW_LIST_ID,
+			sizeof(unicst_pattern), unicst_offset,
+			unicst_pattern, unicst_mask);
+	if (ret) {
+		ath6kl_err("failed to add WOW unicast IP pattern\n");
+		return ret;
+	}
+
+	/* Setup all ARP pkt pattern */
+	ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
+			vif->fw_vif_idx, WOW_LIST_ID,
+			sizeof(arp_pattern), arp_offset,
+			arp_pattern, arp_mask);
+	if (ret) {
+		ath6kl_err("failed to add WOW ARP pattern\n");
+		return ret;
+	}
+
+	/*
+	 * Setup multicast pattern for mDNS 224.0.0.251,
+	 * SSDP 239.255.255.250 and LLMNR  224.0.0.252
+	 */
+	ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
+			vif->fw_vif_idx, WOW_LIST_ID,
+			sizeof(discvr_pattern), discvr_offset,
+			discvr_pattern, discvr_mask);
+	if (ret) {
+		ath6kl_err("failed to add WOW mDNS/SSDP/LLMNR pattern\n");
+		return ret;
+	}
+
+	/* Setup all DHCP broadcast pkt pattern */
+	ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
+			vif->fw_vif_idx, WOW_LIST_ID,
+			sizeof(dhcp_pattern), dhcp_offset,
+			dhcp_pattern, dhcp_mask);
+	if (ret) {
+		ath6kl_err("failed to add WOW DHCP broadcast pattern\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+static int ath6kl_wow_sta(struct ath6kl *ar, struct ath6kl_vif *vif)
+{
+	struct net_device *ndev = vif->ndev;
+	static const u8 discvr_pattern[] = { 0xe0, 0x00, 0x00, 0xf8 };
+	static const u8 discvr_mask[] = { 0xf0, 0x00, 0x00, 0xf8 };
+	u8 discvr_offset = 38;
+	u8 mac_mask[ETH_ALEN];
+	int ret;
+
+	/* Setup unicast pkt pattern */
+	eth_broadcast_addr(mac_mask);
+	ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
+				vif->fw_vif_idx, WOW_LIST_ID,
+				ETH_ALEN, 0, ndev->dev_addr,
+				mac_mask);
+	if (ret) {
+		ath6kl_err("failed to add WOW unicast pattern\n");
+		return ret;
+	}
+
+	/*
+	 * Setup multicast pattern for mDNS 224.0.0.251,
+	 * SSDP 239.255.255.250 and LLMNR 224.0.0.252
+	 */
+	if ((ndev->flags & IFF_ALLMULTI) ||
+	    (ndev->flags & IFF_MULTICAST && netdev_mc_count(ndev) > 0)) {
+		ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
+				vif->fw_vif_idx, WOW_LIST_ID,
+				sizeof(discvr_pattern), discvr_offset,
+				discvr_pattern, discvr_mask);
+		if (ret) {
+			ath6kl_err("failed to add WOW mDNS/SSDP/LLMNR pattern\n");
+			return ret;
+		}
+	}
+
+	return 0;
+}
+
+static int is_hsleep_mode_procsed(struct ath6kl_vif *vif)
+{
+	return test_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags);
+}
+
+static bool is_ctrl_ep_empty(struct ath6kl *ar)
+{
+	return !ar->tx_pending[ar->ctrl_ep];
+}
+
+static int ath6kl_cfg80211_host_sleep(struct ath6kl *ar, struct ath6kl_vif *vif)
+{
+	int ret, left;
+
+	clear_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags);
+
+	ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx,
+						 ATH6KL_HOST_MODE_ASLEEP);
+	if (ret)
+		return ret;
+
+	left = wait_event_interruptible_timeout(ar->event_wq,
+						is_hsleep_mode_procsed(vif),
+						WMI_TIMEOUT);
+	if (left == 0) {
+		ath6kl_warn("timeout, didn't get host sleep cmd processed event\n");
+		ret = -ETIMEDOUT;
+	} else if (left < 0) {
+		ath6kl_warn("error while waiting for host sleep cmd processed event %d\n",
+			    left);
+		ret = left;
+	}
+
+	if (ar->tx_pending[ar->ctrl_ep]) {
+		left = wait_event_interruptible_timeout(ar->event_wq,
+							is_ctrl_ep_empty(ar),
+							WMI_TIMEOUT);
+		if (left == 0) {
+			ath6kl_warn("clear wmi ctrl data timeout\n");
+			ret = -ETIMEDOUT;
+		} else if (left < 0) {
+			ath6kl_warn("clear wmi ctrl data failed: %d\n", left);
+			ret = left;
+		}
+	}
+
+	return ret;
+}
+
+static int ath6kl_wow_suspend_vif(struct ath6kl_vif *vif,
+				  struct cfg80211_wowlan *wow, u32 *filter)
+{
+	struct ath6kl *ar = vif->ar;
+	struct in_device *in_dev;
+	struct in_ifaddr *ifa;
+	int ret;
+	u16 i, bmiss_time;
+	__be32 ips[MAX_IP_ADDRS];
+	u8 index = 0;
+
+	if (!test_bit(NETDEV_MCAST_ALL_ON, &vif->flags) &&
+	    test_bit(ATH6KL_FW_CAPABILITY_WOW_MULTICAST_FILTER,
+		     ar->fw_capabilities)) {
+		ret = ath6kl_wmi_mcast_filter_cmd(vif->ar->wmi,
+						vif->fw_vif_idx, false);
+		if (ret)
+			return ret;
+	}
+
+	/* Clear existing WOW patterns */
+	for (i = 0; i < WOW_MAX_FILTERS_PER_LIST; i++)
+		ath6kl_wmi_del_wow_pattern_cmd(ar->wmi, vif->fw_vif_idx,
+					       WOW_LIST_ID, i);
+
+	/*
+	 * Skip the default WOW pattern configuration
+	 * if the driver receives any WOW patterns from
+	 * the user.
+	 */
+	if (wow)
+		ret = ath6kl_wow_usr(ar, vif, wow, filter);
+	else if (vif->nw_type == AP_NETWORK)
+		ret = ath6kl_wow_ap(ar, vif);
+	else
+		ret = ath6kl_wow_sta(ar, vif);
+
+	if (ret)
+		return ret;
+
+	netif_stop_queue(vif->ndev);
+
+	if (vif->nw_type != AP_NETWORK) {
+		ret = ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx,
+						    ATH6KL_MAX_WOW_LISTEN_INTL,
+						    0);
+		if (ret)
+			return ret;
+
+		/* Set listen interval x 15 times as bmiss time */
+		bmiss_time = ATH6KL_MAX_WOW_LISTEN_INTL * 15;
+		if (bmiss_time > ATH6KL_MAX_BMISS_TIME)
+			bmiss_time = ATH6KL_MAX_BMISS_TIME;
+
+		ret = ath6kl_wmi_bmisstime_cmd(ar->wmi, vif->fw_vif_idx,
+					       bmiss_time, 0);
+		if (ret)
+			return ret;
+
+		ret = ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx,
+						0xFFFF, 0, 0xFFFF, 0, 0, 0,
+						0, 0, 0, 0);
+		if (ret)
+			return ret;
+	}
+
+	/* Setup own IP addr for ARP agent. */
+	in_dev = __in_dev_get_rtnl(vif->ndev);
+	if (!in_dev)
+		return 0;
+
+	ifa = in_dev->ifa_list;
+	memset(&ips, 0, sizeof(ips));
+
+	/* Configure IP addr only if IP address count < MAX_IP_ADDRS */
+	while (index < MAX_IP_ADDRS && ifa) {
+		ips[index] = ifa->ifa_local;
+		ifa = ifa->ifa_next;
+		index++;
+	}
+
+	if (ifa) {
+		ath6kl_err("total IP addr count is exceeding fw limit\n");
+		return -EINVAL;
+	}
+
+	ret = ath6kl_wmi_set_ip_cmd(ar->wmi, vif->fw_vif_idx, ips[0], ips[1]);
+	if (ret) {
+		ath6kl_err("fail to setup ip for arp agent\n");
+		return ret;
+	}
+
+	return ret;
+}
+
+static int ath6kl_wow_suspend(struct ath6kl *ar, struct cfg80211_wowlan *wow)
+{
+	struct ath6kl_vif *first_vif, *vif;
+	int ret = 0;
+	u32 filter = 0;
+	bool connected = false;
+
+	/* enter / leave wow suspend on first vif always */
+	first_vif = ath6kl_vif_first(ar);
+	if (WARN_ON(!first_vif) ||
+	    !ath6kl_cfg80211_ready(first_vif))
+		return -EIO;
+
+	if (wow && (wow->n_patterns > WOW_MAX_FILTERS_PER_LIST))
+		return -EINVAL;
+
+	/* install filters for each connected vif */
+	spin_lock_bh(&ar->list_lock);
+	list_for_each_entry(vif, &ar->vif_list, list) {
+		if (!test_bit(CONNECTED, &vif->flags) ||
+		    !ath6kl_cfg80211_ready(vif))
+			continue;
+		connected = true;
+
+		ret = ath6kl_wow_suspend_vif(vif, wow, &filter);
+		if (ret)
+			break;
+	}
+	spin_unlock_bh(&ar->list_lock);
+
+	if (!connected)
+		return -ENOTCONN;
+	else if (ret)
+		return ret;
+
+	ar->state = ATH6KL_STATE_SUSPENDING;
+
+	ret = ath6kl_wmi_set_wow_mode_cmd(ar->wmi, first_vif->fw_vif_idx,
+					  ATH6KL_WOW_MODE_ENABLE,
+					  filter,
+					  WOW_HOST_REQ_DELAY);
+	if (ret)
+		return ret;
+
+	return ath6kl_cfg80211_host_sleep(ar, first_vif);
+}
+
+static int ath6kl_wow_resume_vif(struct ath6kl_vif *vif)
+{
+	struct ath6kl *ar = vif->ar;
+	int ret;
+
+	if (vif->nw_type != AP_NETWORK) {
+		ret = ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx,
+						0, 0, 0, 0, 0, 0, 3, 0, 0, 0);
+		if (ret)
+			return ret;
+
+		ret = ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx,
+						    vif->listen_intvl_t, 0);
+		if (ret)
+			return ret;
+
+		ret = ath6kl_wmi_bmisstime_cmd(ar->wmi, vif->fw_vif_idx,
+					       vif->bmiss_time_t, 0);
+		if (ret)
+			return ret;
+	}
+
+	if (!test_bit(NETDEV_MCAST_ALL_OFF, &vif->flags) &&
+	    test_bit(ATH6KL_FW_CAPABILITY_WOW_MULTICAST_FILTER,
+		     ar->fw_capabilities)) {
+		ret = ath6kl_wmi_mcast_filter_cmd(vif->ar->wmi,
+						  vif->fw_vif_idx, true);
+		if (ret)
+			return ret;
+	}
+
+	netif_wake_queue(vif->ndev);
+
+	return 0;
+}
+
+static int ath6kl_wow_resume(struct ath6kl *ar)
+{
+	struct ath6kl_vif *vif;
+	int ret;
+
+	vif = ath6kl_vif_first(ar);
+	if (WARN_ON(!vif) ||
+	    !ath6kl_cfg80211_ready(vif))
+		return -EIO;
+
+	ar->state = ATH6KL_STATE_RESUMING;
+
+	ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx,
+						 ATH6KL_HOST_MODE_AWAKE);
+	if (ret) {
+		ath6kl_warn("Failed to configure host sleep mode for wow resume: %d\n",
+			    ret);
+		goto cleanup;
+	}
+
+	spin_lock_bh(&ar->list_lock);
+	list_for_each_entry(vif, &ar->vif_list, list) {
+		if (!test_bit(CONNECTED, &vif->flags) ||
+		    !ath6kl_cfg80211_ready(vif))
+			continue;
+		ret = ath6kl_wow_resume_vif(vif);
+		if (ret)
+			break;
+	}
+	spin_unlock_bh(&ar->list_lock);
+
+	if (ret)
+		goto cleanup;
+
+	ar->state = ATH6KL_STATE_ON;
+	return 0;
+
+cleanup:
+	ar->state = ATH6KL_STATE_WOW;
+	return ret;
+}
+
+static int ath6kl_cfg80211_deepsleep_suspend(struct ath6kl *ar)
+{
+	struct ath6kl_vif *vif;
+	int ret;
+
+	vif = ath6kl_vif_first(ar);
+	if (!vif)
+		return -EIO;
+
+	if (!test_bit(WMI_READY, &ar->flag)) {
+		ath6kl_err("deepsleep failed as wmi is not ready\n");
+		return -EIO;
+	}
+
+	ath6kl_cfg80211_stop_all(ar);
+
+	/* Save the current power mode before enabling power save */
+	ar->wmi->saved_pwr_mode = ar->wmi->pwr_mode;
+
+	ret = ath6kl_wmi_powermode_cmd(ar->wmi, 0, REC_POWER);
+	if (ret)
+		return ret;
+
+	/* Disable WOW mode */
+	ret = ath6kl_wmi_set_wow_mode_cmd(ar->wmi, vif->fw_vif_idx,
+					  ATH6KL_WOW_MODE_DISABLE,
+					  0, 0);
+	if (ret)
+		return ret;
+
+	/* Flush all non control pkts in TX path */
+	ath6kl_tx_data_cleanup(ar);
+
+	ret = ath6kl_cfg80211_host_sleep(ar, vif);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+static int ath6kl_cfg80211_deepsleep_resume(struct ath6kl *ar)
+{
+	struct ath6kl_vif *vif;
+	int ret;
+
+	vif = ath6kl_vif_first(ar);
+
+	if (!vif)
+		return -EIO;
+
+	if (ar->wmi->pwr_mode != ar->wmi->saved_pwr_mode) {
+		ret = ath6kl_wmi_powermode_cmd(ar->wmi, 0,
+					       ar->wmi->saved_pwr_mode);
+		if (ret)
+			return ret;
+	}
+
+	ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx,
+						 ATH6KL_HOST_MODE_AWAKE);
+	if (ret)
+		return ret;
+
+	ar->state = ATH6KL_STATE_ON;
+
+	/* Reset scan parameter to default values */
+	ret = ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx,
+					0, 0, 0, 0, 0, 0, 3, 0, 0, 0);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+int ath6kl_cfg80211_suspend(struct ath6kl *ar,
+			    enum ath6kl_cfg_suspend_mode mode,
+			    struct cfg80211_wowlan *wow)
+{
+	struct ath6kl_vif *vif;
+	enum ath6kl_state prev_state;
+	int ret;
+
+	switch (mode) {
+	case ATH6KL_CFG_SUSPEND_WOW:
+
+		ath6kl_dbg(ATH6KL_DBG_SUSPEND, "wow mode suspend\n");
+
+		/* Flush all non control pkts in TX path */
+		ath6kl_tx_data_cleanup(ar);
+
+		prev_state = ar->state;
+
+		ret = ath6kl_wow_suspend(ar, wow);
+		if (ret) {
+			ar->state = prev_state;
+			return ret;
+		}
+
+		ar->state = ATH6KL_STATE_WOW;
+		break;
+
+	case ATH6KL_CFG_SUSPEND_DEEPSLEEP:
+
+		ath6kl_dbg(ATH6KL_DBG_SUSPEND, "deep sleep suspend\n");
+
+		ret = ath6kl_cfg80211_deepsleep_suspend(ar);
+		if (ret) {
+			ath6kl_err("deepsleep suspend failed: %d\n", ret);
+			return ret;
+		}
+
+		ar->state = ATH6KL_STATE_DEEPSLEEP;
+
+		break;
+
+	case ATH6KL_CFG_SUSPEND_CUTPOWER:
+
+		ath6kl_cfg80211_stop_all(ar);
+
+		if (ar->state == ATH6KL_STATE_OFF) {
+			ath6kl_dbg(ATH6KL_DBG_SUSPEND,
+				   "suspend hw off, no action for cutpower\n");
+			break;
+		}
+
+		ath6kl_dbg(ATH6KL_DBG_SUSPEND, "suspend cutting power\n");
+
+		ret = ath6kl_init_hw_stop(ar);
+		if (ret) {
+			ath6kl_warn("failed to stop hw during suspend: %d\n",
+				    ret);
+		}
+
+		ar->state = ATH6KL_STATE_CUTPOWER;
+
+		break;
+
+	default:
+		break;
+	}
+
+	list_for_each_entry(vif, &ar->vif_list, list)
+		ath6kl_cfg80211_scan_complete_event(vif, true);
+
+	return 0;
+}
+EXPORT_SYMBOL(ath6kl_cfg80211_suspend);
+
+int ath6kl_cfg80211_resume(struct ath6kl *ar)
+{
+	int ret;
+
+	switch (ar->state) {
+	case  ATH6KL_STATE_WOW:
+		ath6kl_dbg(ATH6KL_DBG_SUSPEND, "wow mode resume\n");
+
+		ret = ath6kl_wow_resume(ar);
+		if (ret) {
+			ath6kl_warn("wow mode resume failed: %d\n", ret);
+			return ret;
+		}
+
+		break;
+
+	case ATH6KL_STATE_DEEPSLEEP:
+		ath6kl_dbg(ATH6KL_DBG_SUSPEND, "deep sleep resume\n");
+
+		ret = ath6kl_cfg80211_deepsleep_resume(ar);
+		if (ret) {
+			ath6kl_warn("deep sleep resume failed: %d\n", ret);
+			return ret;
+		}
+		break;
+
+	case ATH6KL_STATE_CUTPOWER:
+		ath6kl_dbg(ATH6KL_DBG_SUSPEND, "resume restoring power\n");
+
+		ret = ath6kl_init_hw_start(ar);
+		if (ret) {
+			ath6kl_warn("Failed to boot hw in resume: %d\n", ret);
+			return ret;
+		}
+		break;
+
+	default:
+		break;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL(ath6kl_cfg80211_resume);
+
+#ifdef CONFIG_PM
+
+/* hif layer decides what suspend mode to use */
+static int __ath6kl_cfg80211_suspend(struct wiphy *wiphy,
+				 struct cfg80211_wowlan *wow)
+{
+	struct ath6kl *ar = wiphy_priv(wiphy);
+
+	ath6kl_recovery_suspend(ar);
+
+	return ath6kl_hif_suspend(ar, wow);
+}
+
+static int __ath6kl_cfg80211_resume(struct wiphy *wiphy)
+{
+	struct ath6kl *ar = wiphy_priv(wiphy);
+	int err;
+
+	err = ath6kl_hif_resume(ar);
+	if (err)
+		return err;
+
+	ath6kl_recovery_resume(ar);
+
+	return 0;
+}
+
+/*
+ * FIXME: WOW suspend mode is selected if the host sdio controller supports
+ * both sdio irq wake up and keep power. The target pulls sdio data line to
+ * wake up the host when WOW pattern matches. This causes sdio irq handler
+ * is being called in the host side which internally hits ath6kl's RX path.
+ *
+ * Since sdio interrupt is not disabled, RX path executes even before
+ * the host executes the actual resume operation from PM module.
+ *
+ * In the current scenario, WOW resume should happen before start processing
+ * any data from the target. So It's required to perform WOW resume in RX path.
+ * Ideally we should perform WOW resume only in the actual platform
+ * resume path. This area needs bit rework to avoid WOW resume in RX path.
+ *
+ * ath6kl_check_wow_status() is called from ath6kl_rx().
+ */
+void ath6kl_check_wow_status(struct ath6kl *ar)
+{
+	if (ar->state == ATH6KL_STATE_SUSPENDING)
+		return;
+
+	if (ar->state == ATH6KL_STATE_WOW)
+		ath6kl_cfg80211_resume(ar);
+}
+
+#else
+
+void ath6kl_check_wow_status(struct ath6kl *ar)
+{
+}
+#endif
+
+static int ath6kl_set_htcap(struct ath6kl_vif *vif, enum nl80211_band band,
+			    bool ht_enable)
+{
+	struct ath6kl_htcap *htcap = &vif->htcap[band];
+
+	if (htcap->ht_enable == ht_enable)
+		return 0;
+
+	if (ht_enable) {
+		/* Set default ht capabilities */
+		htcap->ht_enable = true;
+		htcap->cap_info = (band == NL80211_BAND_2GHZ) ?
+				   ath6kl_g_htcap : ath6kl_a_htcap;
+		htcap->ampdu_factor = IEEE80211_HT_MAX_AMPDU_16K;
+	} else /* Disable ht */
+		memset(htcap, 0, sizeof(*htcap));
+
+	return ath6kl_wmi_set_htcap_cmd(vif->ar->wmi, vif->fw_vif_idx,
+					band, htcap);
+}
+
+static int ath6kl_restore_htcap(struct ath6kl_vif *vif)
+{
+	struct wiphy *wiphy = vif->ar->wiphy;
+	int band, ret = 0;
+
+	for (band = 0; band < NUM_NL80211_BANDS; band++) {
+		if (!wiphy->bands[band])
+			continue;
+
+		ret = ath6kl_set_htcap(vif, band,
+				wiphy->bands[band]->ht_cap.ht_supported);
+		if (ret)
+			return ret;
+	}
+
+	return ret;
+}
+
+static bool ath6kl_is_p2p_ie(const u8 *pos)
+{
+	return pos[0] == WLAN_EID_VENDOR_SPECIFIC && pos[1] >= 4 &&
+		pos[2] == 0x50 && pos[3] == 0x6f &&
+		pos[4] == 0x9a && pos[5] == 0x09;
+}
+
+static int ath6kl_set_ap_probe_resp_ies(struct ath6kl_vif *vif,
+					const u8 *ies, size_t ies_len)
+{
+	struct ath6kl *ar = vif->ar;
+	const u8 *pos;
+	u8 *buf = NULL;
+	size_t len = 0;
+	int ret;
+
+	/*
+	 * Filter out P2P IE(s) since they will be included depending on
+	 * the Probe Request frame in ath6kl_send_go_probe_resp().
+	 */
+
+	if (ies && ies_len) {
+		buf = kmalloc(ies_len, GFP_KERNEL);
+		if (buf == NULL)
+			return -ENOMEM;
+		pos = ies;
+		while (pos + 1 < ies + ies_len) {
+			if (pos + 2 + pos[1] > ies + ies_len)
+				break;
+			if (!ath6kl_is_p2p_ie(pos)) {
+				memcpy(buf + len, pos, 2 + pos[1]);
+				len += 2 + pos[1];
+			}
+			pos += 2 + pos[1];
+		}
+	}
+
+	ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
+				       WMI_FRAME_PROBE_RESP, buf, len);
+	kfree(buf);
+	return ret;
+}
+
+static int ath6kl_set_ies(struct ath6kl_vif *vif,
+			  struct cfg80211_beacon_data *info)
+{
+	struct ath6kl *ar = vif->ar;
+	int res;
+
+	/* this also clears IE in fw if it's not set */
+	res = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
+				       WMI_FRAME_BEACON,
+				       info->beacon_ies,
+				       info->beacon_ies_len);
+	if (res)
+		return res;
+
+	/* this also clears IE in fw if it's not set */
+	res = ath6kl_set_ap_probe_resp_ies(vif, info->proberesp_ies,
+					   info->proberesp_ies_len);
+	if (res)
+		return res;
+
+	/* this also clears IE in fw if it's not set */
+	res = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
+				       WMI_FRAME_ASSOC_RESP,
+				       info->assocresp_ies,
+				       info->assocresp_ies_len);
+	if (res)
+		return res;
+
+	return 0;
+}
+
+static int ath6kl_get_rsn_capab(struct cfg80211_beacon_data *beacon,
+				u8 *rsn_capab)
+{
+	const u8 *rsn_ie;
+	size_t rsn_ie_len;
+	u16 cnt;
+
+	if (!beacon->tail)
+		return -EINVAL;
+
+	rsn_ie = cfg80211_find_ie(WLAN_EID_RSN, beacon->tail, beacon->tail_len);
+	if (!rsn_ie)
+		return -EINVAL;
+
+	rsn_ie_len = *(rsn_ie + 1);
+	/* skip element id and length */
+	rsn_ie += 2;
+
+	/* skip version */
+	if (rsn_ie_len < 2)
+		return -EINVAL;
+	rsn_ie +=  2;
+	rsn_ie_len -= 2;
+
+	/* skip group cipher suite */
+	if (rsn_ie_len < 4)
+		return 0;
+	rsn_ie +=  4;
+	rsn_ie_len -= 4;
+
+	/* skip pairwise cipher suite */
+	if (rsn_ie_len < 2)
+		return 0;
+	cnt = get_unaligned_le16(rsn_ie);
+	rsn_ie += (2 + cnt * 4);
+	rsn_ie_len -= (2 + cnt * 4);
+
+	/* skip akm suite */
+	if (rsn_ie_len < 2)
+		return 0;
+	cnt = get_unaligned_le16(rsn_ie);
+	rsn_ie += (2 + cnt * 4);
+	rsn_ie_len -= (2 + cnt * 4);
+
+	if (rsn_ie_len < 2)
+		return 0;
+
+	memcpy(rsn_capab, rsn_ie, 2);
+
+	return 0;
+}
+
+static int ath6kl_start_ap(struct wiphy *wiphy, struct net_device *dev,
+			   struct cfg80211_ap_settings *info)
+{
+	struct ath6kl *ar = ath6kl_priv(dev);
+	struct ath6kl_vif *vif = netdev_priv(dev);
+	struct ieee80211_mgmt *mgmt;
+	bool hidden = false;
+	u8 *ies;
+	struct wmi_connect_cmd p;
+	int res;
+	int i, ret;
+	u16 rsn_capab = 0;
+	int inactivity_timeout = 0;
+
+	ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s:\n", __func__);
+
+	if (!ath6kl_cfg80211_ready(vif))
+		return -EIO;
+
+	if (vif->next_mode != AP_NETWORK)
+		return -EOPNOTSUPP;
+
+	res = ath6kl_set_ies(vif, &info->beacon);
+
+	ar->ap_mode_bkey.valid = false;
+
+	ret = ath6kl_wmi_ap_set_beacon_intvl_cmd(ar->wmi, vif->fw_vif_idx,
+						 info->beacon_interval);
+
+	if (ret)
+		ath6kl_warn("Failed to set beacon interval: %d\n", ret);
+
+	ret = ath6kl_wmi_ap_set_dtim_cmd(ar->wmi, vif->fw_vif_idx,
+					 info->dtim_period);
+
+	/* ignore error, just print a warning and continue normally */
+	if (ret)
+		ath6kl_warn("Failed to set dtim_period in beacon: %d\n", ret);
+
+	if (info->beacon.head == NULL)
+		return -EINVAL;
+	mgmt = (struct ieee80211_mgmt *) info->beacon.head;
+	ies = mgmt->u.beacon.variable;
+	if (ies > info->beacon.head + info->beacon.head_len)
+		return -EINVAL;
+
+	if (info->ssid == NULL)
+		return -EINVAL;
+	memcpy(vif->ssid, info->ssid, info->ssid_len);
+	vif->ssid_len = info->ssid_len;
+	if (info->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE)
+		hidden = true;
+
+	res = ath6kl_wmi_ap_hidden_ssid(ar->wmi, vif->fw_vif_idx, hidden);
+	if (res)
+		return res;
+
+	ret = ath6kl_set_auth_type(vif, info->auth_type);
+	if (ret)
+		return ret;
+
+	memset(&p, 0, sizeof(p));
+
+	for (i = 0; i < info->crypto.n_akm_suites; i++) {
+		switch (info->crypto.akm_suites[i]) {
+		case WLAN_AKM_SUITE_8021X:
+			if (info->crypto.wpa_versions & NL80211_WPA_VERSION_1)
+				p.auth_mode |= WPA_AUTH;
+			if (info->crypto.wpa_versions & NL80211_WPA_VERSION_2)
+				p.auth_mode |= WPA2_AUTH;
+			break;
+		case WLAN_AKM_SUITE_PSK:
+			if (info->crypto.wpa_versions & NL80211_WPA_VERSION_1)
+				p.auth_mode |= WPA_PSK_AUTH;
+			if (info->crypto.wpa_versions & NL80211_WPA_VERSION_2)
+				p.auth_mode |= WPA2_PSK_AUTH;
+			break;
+		}
+	}
+	if (p.auth_mode == 0)
+		p.auth_mode = NONE_AUTH;
+	vif->auth_mode = p.auth_mode;
+
+	for (i = 0; i < info->crypto.n_ciphers_pairwise; i++) {
+		switch (info->crypto.ciphers_pairwise[i]) {
+		case WLAN_CIPHER_SUITE_WEP40:
+		case WLAN_CIPHER_SUITE_WEP104:
+			p.prwise_crypto_type |= WEP_CRYPT;
+			break;
+		case WLAN_CIPHER_SUITE_TKIP:
+			p.prwise_crypto_type |= TKIP_CRYPT;
+			break;
+		case WLAN_CIPHER_SUITE_CCMP:
+			p.prwise_crypto_type |= AES_CRYPT;
+			break;
+		case WLAN_CIPHER_SUITE_SMS4:
+			p.prwise_crypto_type |= WAPI_CRYPT;
+			break;
+		}
+	}
+	if (p.prwise_crypto_type == 0) {
+		p.prwise_crypto_type = NONE_CRYPT;
+		ath6kl_set_cipher(vif, 0, true);
+	} else if (info->crypto.n_ciphers_pairwise == 1) {
+		ath6kl_set_cipher(vif, info->crypto.ciphers_pairwise[0], true);
+	}
+
+	switch (info->crypto.cipher_group) {
+	case WLAN_CIPHER_SUITE_WEP40:
+	case WLAN_CIPHER_SUITE_WEP104:
+		p.grp_crypto_type = WEP_CRYPT;
+		break;
+	case WLAN_CIPHER_SUITE_TKIP:
+		p.grp_crypto_type = TKIP_CRYPT;
+		break;
+	case WLAN_CIPHER_SUITE_CCMP:
+		p.grp_crypto_type = AES_CRYPT;
+		break;
+	case WLAN_CIPHER_SUITE_SMS4:
+		p.grp_crypto_type = WAPI_CRYPT;
+		break;
+	default:
+		p.grp_crypto_type = NONE_CRYPT;
+		break;
+	}
+	ath6kl_set_cipher(vif, info->crypto.cipher_group, false);
+
+	p.nw_type = AP_NETWORK;
+	vif->nw_type = vif->next_mode;
+
+	p.ssid_len = vif->ssid_len;
+	memcpy(p.ssid, vif->ssid, vif->ssid_len);
+	p.dot11_auth_mode = vif->dot11_auth_mode;
+	p.ch = cpu_to_le16(info->chandef.chan->center_freq);
+
+	/* Enable uAPSD support by default */
+	res = ath6kl_wmi_ap_set_apsd(ar->wmi, vif->fw_vif_idx, true);
+	if (res < 0)
+		return res;
+
+	if (vif->wdev.iftype == NL80211_IFTYPE_P2P_GO) {
+		p.nw_subtype = SUBTYPE_P2PGO;
+	} else {
+		/*
+		 * Due to firmware limitation, it is not possible to
+		 * do P2P mgmt operations in AP mode
+		 */
+		p.nw_subtype = SUBTYPE_NONE;
+	}
+
+	if (info->inactivity_timeout) {
+		inactivity_timeout = info->inactivity_timeout;
+
+		if (test_bit(ATH6KL_FW_CAPABILITY_AP_INACTIVITY_MINS,
+			     ar->fw_capabilities))
+			inactivity_timeout = DIV_ROUND_UP(inactivity_timeout,
+							  60);
+
+		res = ath6kl_wmi_set_inact_period(ar->wmi, vif->fw_vif_idx,
+						  inactivity_timeout);
+		if (res < 0)
+			return res;
+	}
+
+	if (ath6kl_set_htcap(vif, info->chandef.chan->band,
+			     cfg80211_get_chandef_type(&info->chandef)
+					!= NL80211_CHAN_NO_HT))
+		return -EIO;
+
+	/*
+	 * Get the PTKSA replay counter in the RSN IE. Supplicant
+	 * will use the RSN IE in M3 message and firmware has to
+	 * advertise the same in beacon/probe response. Send
+	 * the complete RSN IE capability field to firmware
+	 */
+	if (!ath6kl_get_rsn_capab(&info->beacon, (u8 *) &rsn_capab) &&
+	    test_bit(ATH6KL_FW_CAPABILITY_RSN_CAP_OVERRIDE,
+		     ar->fw_capabilities)) {
+		res = ath6kl_wmi_set_ie_cmd(ar->wmi, vif->fw_vif_idx,
+					    WLAN_EID_RSN, WMI_RSN_IE_CAPB,
+					    (const u8 *) &rsn_capab,
+					    sizeof(rsn_capab));
+		vif->rsn_capab = rsn_capab;
+		if (res < 0)
+			return res;
+	}
+
+	memcpy(&vif->profile, &p, sizeof(p));
+	res = ath6kl_wmi_ap_profile_commit(ar->wmi, vif->fw_vif_idx, &p);
+	if (res < 0)
+		return res;
+
+	return 0;
+}
+
+static int ath6kl_change_beacon(struct wiphy *wiphy, struct net_device *dev,
+				struct cfg80211_beacon_data *beacon)
+{
+	struct ath6kl_vif *vif = netdev_priv(dev);
+
+	if (!ath6kl_cfg80211_ready(vif))
+		return -EIO;
+
+	if (vif->next_mode != AP_NETWORK)
+		return -EOPNOTSUPP;
+
+	return ath6kl_set_ies(vif, beacon);
+}
+
+static int ath6kl_stop_ap(struct wiphy *wiphy, struct net_device *dev)
+{
+	struct ath6kl *ar = ath6kl_priv(dev);
+	struct ath6kl_vif *vif = netdev_priv(dev);
+
+	if (vif->nw_type != AP_NETWORK)
+		return -EOPNOTSUPP;
+	if (!test_bit(CONNECTED, &vif->flags))
+		return -ENOTCONN;
+
+	ath6kl_wmi_disconnect_cmd(ar->wmi, vif->fw_vif_idx);
+	clear_bit(CONNECTED, &vif->flags);
+	netif_carrier_off(vif->ndev);
+
+	/* Restore ht setting in firmware */
+	return ath6kl_restore_htcap(vif);
+}
+
+static const u8 bcast_addr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
+
+static int ath6kl_del_station(struct wiphy *wiphy, struct net_device *dev,
+			      struct station_del_parameters *params)
+{
+	struct ath6kl *ar = ath6kl_priv(dev);
+	struct ath6kl_vif *vif = netdev_priv(dev);
+	const u8 *addr = params->mac ? params->mac : bcast_addr;
+
+	return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx, WMI_AP_DEAUTH,
+				      addr, WLAN_REASON_PREV_AUTH_NOT_VALID);
+}
+
+static int ath6kl_change_station(struct wiphy *wiphy, struct net_device *dev,
+				 const u8 *mac,
+				 struct station_parameters *params)
+{
+	struct ath6kl *ar = ath6kl_priv(dev);
+	struct ath6kl_vif *vif = netdev_priv(dev);
+	int err;
+
+	if (vif->nw_type != AP_NETWORK)
+		return -EOPNOTSUPP;
+
+	err = cfg80211_check_station_change(wiphy, params,
+					    CFG80211_STA_AP_MLME_CLIENT);
+	if (err)
+		return err;
+
+	if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED))
+		return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx,
+					      WMI_AP_MLME_AUTHORIZE, mac, 0);
+	return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx,
+				      WMI_AP_MLME_UNAUTHORIZE, mac, 0);
+}
+
+static int ath6kl_remain_on_channel(struct wiphy *wiphy,
+				    struct wireless_dev *wdev,
+				    struct ieee80211_channel *chan,
+				    unsigned int duration,
+				    u64 *cookie)
+{
+	struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev);
+	struct ath6kl *ar = ath6kl_priv(vif->ndev);
+	u32 id;
+
+	/* TODO: if already pending or ongoing remain-on-channel,
+	 * return -EBUSY */
+	id = ++vif->last_roc_id;
+	if (id == 0) {
+		/* Do not use 0 as the cookie value */
+		id = ++vif->last_roc_id;
+	}
+	*cookie = id;
+
+	return ath6kl_wmi_remain_on_chnl_cmd(ar->wmi, vif->fw_vif_idx,
+					     chan->center_freq, duration);
+}
+
+static int ath6kl_cancel_remain_on_channel(struct wiphy *wiphy,
+					   struct wireless_dev *wdev,
+					   u64 cookie)
+{
+	struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev);
+	struct ath6kl *ar = ath6kl_priv(vif->ndev);
+
+	if (cookie != vif->last_roc_id)
+		return -ENOENT;
+	vif->last_cancel_roc_id = cookie;
+
+	return ath6kl_wmi_cancel_remain_on_chnl_cmd(ar->wmi, vif->fw_vif_idx);
+}
+
+static int ath6kl_send_go_probe_resp(struct ath6kl_vif *vif,
+				     const u8 *buf, size_t len,
+				     unsigned int freq)
+{
+	struct ath6kl *ar = vif->ar;
+	const u8 *pos;
+	u8 *p2p;
+	int p2p_len;
+	int ret;
+	const struct ieee80211_mgmt *mgmt;
+
+	mgmt = (const struct ieee80211_mgmt *) buf;
+
+	/* Include P2P IE(s) from the frame generated in user space. */
+
+	p2p = kmalloc(len, GFP_KERNEL);
+	if (p2p == NULL)
+		return -ENOMEM;
+	p2p_len = 0;
+
+	pos = mgmt->u.probe_resp.variable;
+	while (pos + 1 < buf + len) {
+		if (pos + 2 + pos[1] > buf + len)
+			break;
+		if (ath6kl_is_p2p_ie(pos)) {
+			memcpy(p2p + p2p_len, pos, 2 + pos[1]);
+			p2p_len += 2 + pos[1];
+		}
+		pos += 2 + pos[1];
+	}
+
+	ret = ath6kl_wmi_send_probe_response_cmd(ar->wmi, vif->fw_vif_idx, freq,
+						 mgmt->da, p2p, p2p_len);
+	kfree(p2p);
+	return ret;
+}
+
+static bool ath6kl_mgmt_powersave_ap(struct ath6kl_vif *vif,
+				     u32 id,
+				     u32 freq,
+				     u32 wait,
+				     const u8 *buf,
+				     size_t len,
+				     bool *more_data,
+				     bool no_cck)
+{
+	struct ieee80211_mgmt *mgmt;
+	struct ath6kl_sta *conn;
+	bool is_psq_empty = false;
+	struct ath6kl_mgmt_buff *mgmt_buf;
+	size_t mgmt_buf_size;
+	struct ath6kl *ar = vif->ar;
+
+	mgmt = (struct ieee80211_mgmt *) buf;
+	if (is_multicast_ether_addr(mgmt->da))
+		return false;
+
+	conn = ath6kl_find_sta(vif, mgmt->da);
+	if (!conn)
+		return false;
+
+	if (conn->sta_flags & STA_PS_SLEEP) {
+		if (!(conn->sta_flags & STA_PS_POLLED)) {
+			/* Queue the frames if the STA is sleeping */
+			mgmt_buf_size = len + sizeof(struct ath6kl_mgmt_buff);
+			mgmt_buf = kmalloc(mgmt_buf_size, GFP_KERNEL);
+			if (!mgmt_buf)
+				return false;
+
+			INIT_LIST_HEAD(&mgmt_buf->list);
+			mgmt_buf->id = id;
+			mgmt_buf->freq = freq;
+			mgmt_buf->wait = wait;
+			mgmt_buf->len = len;
+			mgmt_buf->no_cck = no_cck;
+			memcpy(mgmt_buf->buf, buf, len);
+			spin_lock_bh(&conn->psq_lock);
+			is_psq_empty = skb_queue_empty(&conn->psq) &&
+					(conn->mgmt_psq_len == 0);
+			list_add_tail(&mgmt_buf->list, &conn->mgmt_psq);
+			conn->mgmt_psq_len++;
+			spin_unlock_bh(&conn->psq_lock);
+
+			/*
+			 * If this is the first pkt getting queued
+			 * for this STA, update the PVB for this
+			 * STA.
+			 */
+			if (is_psq_empty)
+				ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx,
+						       conn->aid, 1);
+			return true;
+		}
+
+		/*
+		 * This tx is because of a PsPoll.
+		 * Determine if MoreData bit has to be set.
+		 */
+		spin_lock_bh(&conn->psq_lock);
+		if (!skb_queue_empty(&conn->psq) || (conn->mgmt_psq_len != 0))
+			*more_data = true;
+		spin_unlock_bh(&conn->psq_lock);
+	}
+
+	return false;
+}
+
+/* Check if SSID length is greater than DIRECT- */
+static bool ath6kl_is_p2p_go_ssid(const u8 *buf, size_t len)
+{
+	const struct ieee80211_mgmt *mgmt;
+	mgmt = (const struct ieee80211_mgmt *) buf;
+
+	/* variable[1] contains the SSID tag length */
+	if (buf + len >= &mgmt->u.probe_resp.variable[1] &&
+	    (mgmt->u.probe_resp.variable[1] > P2P_WILDCARD_SSID_LEN)) {
+		return true;
+	}
+
+	return false;
+}
+
+static int ath6kl_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
+			  struct cfg80211_mgmt_tx_params *params, u64 *cookie)
+{
+	struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev);
+	struct ath6kl *ar = ath6kl_priv(vif->ndev);
+	struct ieee80211_channel *chan = params->chan;
+	const u8 *buf = params->buf;
+	size_t len = params->len;
+	unsigned int wait = params->wait;
+	bool no_cck = params->no_cck;
+	u32 id, freq;
+	const struct ieee80211_mgmt *mgmt;
+	bool more_data, queued;
+
+	/* default to the current channel, but use the one specified as argument
+	 * if any
+	 */
+	freq = vif->ch_hint;
+	if (chan)
+		freq = chan->center_freq;
+
+	/* never send freq zero to the firmware */
+	if (WARN_ON(freq == 0))
+		return -EINVAL;
+
+	mgmt = (const struct ieee80211_mgmt *) buf;
+	if (vif->nw_type == AP_NETWORK && test_bit(CONNECTED, &vif->flags) &&
+	    ieee80211_is_probe_resp(mgmt->frame_control) &&
+	    ath6kl_is_p2p_go_ssid(buf, len)) {
+		/*
+		 * Send Probe Response frame in GO mode using a separate WMI
+		 * command to allow the target to fill in the generic IEs.
+		 */
+		*cookie = 0; /* TX status not supported */
+		return ath6kl_send_go_probe_resp(vif, buf, len, freq);
+	}
+
+	id = vif->send_action_id++;
+	if (id == 0) {
+		/*
+		 * 0 is a reserved value in the WMI command and shall not be
+		 * used for the command.
+		 */
+		id = vif->send_action_id++;
+	}
+
+	*cookie = id;
+
+	/* AP mode Power saving processing */
+	if (vif->nw_type == AP_NETWORK) {
+		queued = ath6kl_mgmt_powersave_ap(vif, id, freq, wait, buf, len,
+						  &more_data, no_cck);
+		if (queued)
+			return 0;
+	}
+
+	return ath6kl_wmi_send_mgmt_cmd(ar->wmi, vif->fw_vif_idx, id, freq,
+					wait, buf, len, no_cck);
+}
+
+static int ath6kl_get_antenna(struct wiphy *wiphy,
+			      u32 *tx_ant, u32 *rx_ant)
+{
+	struct ath6kl *ar = wiphy_priv(wiphy);
+	*tx_ant = ar->hw.tx_ant;
+	*rx_ant = ar->hw.rx_ant;
+	return 0;
+}
+
+static void ath6kl_mgmt_frame_register(struct wiphy *wiphy,
+				       struct wireless_dev *wdev,
+				       u16 frame_type, bool reg)
+{
+	struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev);
+
+	ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: frame_type=0x%x reg=%d\n",
+		   __func__, frame_type, reg);
+	if (frame_type == IEEE80211_STYPE_PROBE_REQ) {
+		/*
+		 * Note: This notification callback is not allowed to sleep, so
+		 * we cannot send WMI_PROBE_REQ_REPORT_CMD here. Instead, we
+		 * hardcode target to report Probe Request frames all the time.
+		 */
+		vif->probe_req_report = reg;
+	}
+}
+
+static int ath6kl_cfg80211_sscan_start(struct wiphy *wiphy,
+			struct net_device *dev,
+			struct cfg80211_sched_scan_request *request)
+{
+	struct ath6kl *ar = ath6kl_priv(dev);
+	struct ath6kl_vif *vif = netdev_priv(dev);
+	u16 interval;
+	int ret, rssi_thold;
+	int n_match_sets = request->n_match_sets;
+
+	/*
+	 * If there's a matchset w/o an SSID, then assume it's just for
+	 * the RSSI (nothing else is currently supported) and ignore it.
+	 * The device only supports a global RSSI filter that we set below.
+	 */
+	if (n_match_sets == 1 && !request->match_sets[0].ssid.ssid_len)
+		n_match_sets = 0;
+
+	if (ar->state != ATH6KL_STATE_ON)
+		return -EIO;
+
+	if (vif->sme_state != SME_DISCONNECTED)
+		return -EBUSY;
+
+	ath6kl_cfg80211_scan_complete_event(vif, true);
+
+	ret = ath6kl_set_probed_ssids(ar, vif, request->ssids,
+				      request->n_ssids,
+				      request->match_sets,
+				      n_match_sets);
+	if (ret < 0)
+		return ret;
+
+	if (!n_match_sets) {
+		ret = ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
+					       ALL_BSS_FILTER, 0);
+		if (ret < 0)
+			return ret;
+	} else {
+		 ret = ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
+						MATCHED_SSID_FILTER, 0);
+		if (ret < 0)
+			return ret;
+	}
+
+	if (test_bit(ATH6KL_FW_CAPABILITY_RSSI_SCAN_THOLD,
+		     ar->fw_capabilities)) {
+		if (request->min_rssi_thold <= NL80211_SCAN_RSSI_THOLD_OFF)
+			rssi_thold = 0;
+		else if (request->min_rssi_thold < -127)
+			rssi_thold = -127;
+		else
+			rssi_thold = request->min_rssi_thold;
+
+		ret = ath6kl_wmi_set_rssi_filter_cmd(ar->wmi, vif->fw_vif_idx,
+						     rssi_thold);
+		if (ret) {
+			ath6kl_err("failed to set RSSI threshold for scan\n");
+			return ret;
+		}
+	}
+
+	/* fw uses seconds, also make sure that it's >0 */
+	interval = max_t(u16, 1, request->scan_plans[0].interval);
+
+	ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx,
+				  interval, interval,
+				  vif->bg_scan_period, 0, 0, 0, 3, 0, 0, 0);
+
+	/* this also clears IE in fw if it's not set */
+	ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
+				       WMI_FRAME_PROBE_REQ,
+				       request->ie, request->ie_len);
+	if (ret) {
+		ath6kl_warn("Failed to set probe request IE for scheduled scan: %d\n",
+			    ret);
+		return ret;
+	}
+
+	ret = ath6kl_wmi_enable_sched_scan_cmd(ar->wmi, vif->fw_vif_idx, true);
+	if (ret)
+		return ret;
+
+	set_bit(SCHED_SCANNING, &vif->flags);
+
+	return 0;
+}
+
+static int ath6kl_cfg80211_sscan_stop(struct wiphy *wiphy,
+				      struct net_device *dev, u64 reqid)
+{
+	struct ath6kl_vif *vif = netdev_priv(dev);
+	bool stopped;
+
+	stopped = __ath6kl_cfg80211_sscan_stop(vif);
+
+	if (!stopped)
+		return -EIO;
+
+	return 0;
+}
+
+static int ath6kl_cfg80211_set_bitrate(struct wiphy *wiphy,
+				       struct net_device *dev,
+				       const u8 *addr,
+				       const struct cfg80211_bitrate_mask *mask)
+{
+	struct ath6kl *ar = ath6kl_priv(dev);
+	struct ath6kl_vif *vif = netdev_priv(dev);
+
+	return ath6kl_wmi_set_bitrate_mask(ar->wmi, vif->fw_vif_idx,
+					   mask);
+}
+
+static int ath6kl_cfg80211_set_txe_config(struct wiphy *wiphy,
+					  struct net_device *dev,
+					  u32 rate, u32 pkts, u32 intvl)
+{
+	struct ath6kl *ar = ath6kl_priv(dev);
+	struct ath6kl_vif *vif = netdev_priv(dev);
+
+	if (vif->nw_type != INFRA_NETWORK ||
+	    !test_bit(ATH6KL_FW_CAPABILITY_TX_ERR_NOTIFY, ar->fw_capabilities))
+		return -EOPNOTSUPP;
+
+	if (vif->sme_state != SME_CONNECTED)
+		return -ENOTCONN;
+
+	/* save this since the firmware won't report the interval */
+	vif->txe_intvl = intvl;
+
+	return ath6kl_wmi_set_txe_notify(ar->wmi, vif->fw_vif_idx,
+					 rate, pkts, intvl);
+}
+
+static const struct ieee80211_txrx_stypes
+ath6kl_mgmt_stypes[NUM_NL80211_IFTYPES] = {
+	[NL80211_IFTYPE_STATION] = {
+		.tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
+		BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
+		.rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
+		BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
+	},
+	[NL80211_IFTYPE_AP] = {
+		.tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
+		BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
+		.rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
+		BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
+	},
+	[NL80211_IFTYPE_P2P_CLIENT] = {
+		.tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
+		BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
+		.rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
+		BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
+	},
+	[NL80211_IFTYPE_P2P_GO] = {
+		.tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
+		BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
+		.rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
+		BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
+	},
+};
+
+static struct cfg80211_ops ath6kl_cfg80211_ops = {
+	.add_virtual_intf = ath6kl_cfg80211_add_iface,
+	.del_virtual_intf = ath6kl_cfg80211_del_iface,
+	.change_virtual_intf = ath6kl_cfg80211_change_iface,
+	.scan = ath6kl_cfg80211_scan,
+	.connect = ath6kl_cfg80211_connect,
+	.disconnect = ath6kl_cfg80211_disconnect,
+	.add_key = ath6kl_cfg80211_add_key,
+	.get_key = ath6kl_cfg80211_get_key,
+	.del_key = ath6kl_cfg80211_del_key,
+	.set_default_key = ath6kl_cfg80211_set_default_key,
+	.set_wiphy_params = ath6kl_cfg80211_set_wiphy_params,
+	.set_tx_power = ath6kl_cfg80211_set_txpower,
+	.get_tx_power = ath6kl_cfg80211_get_txpower,
+	.set_power_mgmt = ath6kl_cfg80211_set_power_mgmt,
+	.join_ibss = ath6kl_cfg80211_join_ibss,
+	.leave_ibss = ath6kl_cfg80211_leave_ibss,
+	.get_station = ath6kl_get_station,
+	.set_pmksa = ath6kl_set_pmksa,
+	.del_pmksa = ath6kl_del_pmksa,
+	.flush_pmksa = ath6kl_flush_pmksa,
+	CFG80211_TESTMODE_CMD(ath6kl_tm_cmd)
+#ifdef CONFIG_PM
+	.suspend = __ath6kl_cfg80211_suspend,
+	.resume = __ath6kl_cfg80211_resume,
+#endif
+	.start_ap = ath6kl_start_ap,
+	.change_beacon = ath6kl_change_beacon,
+	.stop_ap = ath6kl_stop_ap,
+	.del_station = ath6kl_del_station,
+	.change_station = ath6kl_change_station,
+	.remain_on_channel = ath6kl_remain_on_channel,
+	.cancel_remain_on_channel = ath6kl_cancel_remain_on_channel,
+	.mgmt_tx = ath6kl_mgmt_tx,
+	.mgmt_frame_register = ath6kl_mgmt_frame_register,
+	.get_antenna = ath6kl_get_antenna,
+	.sched_scan_start = ath6kl_cfg80211_sscan_start,
+	.sched_scan_stop = ath6kl_cfg80211_sscan_stop,
+	.set_bitrate_mask = ath6kl_cfg80211_set_bitrate,
+	.set_cqm_txe_config = ath6kl_cfg80211_set_txe_config,
+};
+
+void ath6kl_cfg80211_stop(struct ath6kl_vif *vif)
+{
+	ath6kl_cfg80211_sscan_disable(vif);
+
+	switch (vif->sme_state) {
+	case SME_DISCONNECTED:
+		break;
+	case SME_CONNECTING:
+		cfg80211_connect_result(vif->ndev, vif->bssid, NULL, 0,
+					NULL, 0,
+					WLAN_STATUS_UNSPECIFIED_FAILURE,
+					GFP_KERNEL);
+		break;
+	case SME_CONNECTED:
+		cfg80211_disconnected(vif->ndev, 0, NULL, 0, true, GFP_KERNEL);
+		break;
+	}
+
+	if (vif->ar->state != ATH6KL_STATE_RECOVERY &&
+	    (test_bit(CONNECTED, &vif->flags) ||
+	    test_bit(CONNECT_PEND, &vif->flags)))
+		ath6kl_wmi_disconnect_cmd(vif->ar->wmi, vif->fw_vif_idx);
+
+	vif->sme_state = SME_DISCONNECTED;
+	clear_bit(CONNECTED, &vif->flags);
+	clear_bit(CONNECT_PEND, &vif->flags);
+
+	/* Stop netdev queues, needed during recovery */
+	netif_stop_queue(vif->ndev);
+	netif_carrier_off(vif->ndev);
+
+	/* disable scanning */
+	if (vif->ar->state != ATH6KL_STATE_RECOVERY &&
+	    ath6kl_wmi_scanparams_cmd(vif->ar->wmi, vif->fw_vif_idx, 0xFFFF,
+				      0, 0, 0, 0, 0, 0, 0, 0, 0) != 0)
+		ath6kl_warn("failed to disable scan during stop\n");
+
+	ath6kl_cfg80211_scan_complete_event(vif, true);
+}
+
+void ath6kl_cfg80211_stop_all(struct ath6kl *ar)
+{
+	struct ath6kl_vif *vif;
+
+	vif = ath6kl_vif_first(ar);
+	if (!vif && ar->state != ATH6KL_STATE_RECOVERY) {
+		/* save the current power mode before enabling power save */
+		ar->wmi->saved_pwr_mode = ar->wmi->pwr_mode;
+
+		if (ath6kl_wmi_powermode_cmd(ar->wmi, 0, REC_POWER) != 0)
+			ath6kl_warn("ath6kl_deep_sleep_enable: wmi_powermode_cmd failed\n");
+		return;
+	}
+
+	/*
+	 * FIXME: we should take ar->list_lock to protect changes in the
+	 * vif_list, but that's not trivial to do as ath6kl_cfg80211_stop()
+	 * sleeps.
+	 */
+	list_for_each_entry(vif, &ar->vif_list, list)
+		ath6kl_cfg80211_stop(vif);
+}
+
+static void ath6kl_cfg80211_reg_notify(struct wiphy *wiphy,
+				       struct regulatory_request *request)
+{
+	struct ath6kl *ar = wiphy_priv(wiphy);
+	u32 rates[NUM_NL80211_BANDS];
+	int ret, i;
+
+	ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
+		   "cfg reg_notify %c%c%s%s initiator %d hint_type %d\n",
+		   request->alpha2[0], request->alpha2[1],
+		   request->intersect ? " intersect" : "",
+		   request->processed ? " processed" : "",
+		   request->initiator, request->user_reg_hint_type);
+
+	if (request->user_reg_hint_type != NL80211_USER_REG_HINT_CELL_BASE)
+		return;
+
+	ret = ath6kl_wmi_set_regdomain_cmd(ar->wmi, request->alpha2);
+	if (ret) {
+		ath6kl_err("failed to set regdomain: %d\n", ret);
+		return;
+	}
+
+	/*
+	 * Firmware will apply the regdomain change only after a scan is
+	 * issued and it will send a WMI_REGDOMAIN_EVENTID when it has been
+	 * changed.
+	 */
+
+	for (i = 0; i < NUM_NL80211_BANDS; i++)
+		if (wiphy->bands[i])
+			rates[i] = (1 << wiphy->bands[i]->n_bitrates) - 1;
+
+
+	ret = ath6kl_wmi_beginscan_cmd(ar->wmi, 0, WMI_LONG_SCAN, false,
+				       false, 0, ATH6KL_FG_SCAN_INTERVAL,
+				       0, NULL, false, rates);
+	if (ret) {
+		ath6kl_err("failed to start scan for a regdomain change: %d\n",
+			   ret);
+		return;
+	}
+}
+
+static int ath6kl_cfg80211_vif_init(struct ath6kl_vif *vif)
+{
+	vif->aggr_cntxt = aggr_init(vif);
+	if (!vif->aggr_cntxt) {
+		ath6kl_err("failed to initialize aggr\n");
+		return -ENOMEM;
+	}
+
+	timer_setup(&vif->disconnect_timer, disconnect_timer_handler, 0);
+	timer_setup(&vif->sched_scan_timer, ath6kl_wmi_sscan_timer, 0);
+
+	set_bit(WMM_ENABLED, &vif->flags);
+	spin_lock_init(&vif->if_lock);
+
+	INIT_LIST_HEAD(&vif->mc_filter);
+
+	return 0;
+}
+
+void ath6kl_cfg80211_vif_stop(struct ath6kl_vif *vif, bool wmi_ready)
+{
+	static u8 bcast_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
+	bool discon_issued;
+
+	netif_stop_queue(vif->ndev);
+
+	clear_bit(WLAN_ENABLED, &vif->flags);
+
+	if (wmi_ready) {
+		discon_issued = test_bit(CONNECTED, &vif->flags) ||
+				test_bit(CONNECT_PEND, &vif->flags);
+		ath6kl_disconnect(vif);
+		del_timer(&vif->disconnect_timer);
+
+		if (discon_issued)
+			ath6kl_disconnect_event(vif, DISCONNECT_CMD,
+						(vif->nw_type & AP_NETWORK) ?
+						bcast_mac : vif->bssid,
+						0, NULL, 0);
+	}
+
+	if (vif->scan_req) {
+		struct cfg80211_scan_info info = {
+			.aborted = true,
+		};
+
+		cfg80211_scan_done(vif->scan_req, &info);
+		vif->scan_req = NULL;
+	}
+
+	/* need to clean up enhanced bmiss detection fw state */
+	ath6kl_cfg80211_sta_bmiss_enhance(vif, false);
+}
+
+void ath6kl_cfg80211_vif_cleanup(struct ath6kl_vif *vif)
+{
+	struct ath6kl *ar = vif->ar;
+	struct ath6kl_mc_filter *mc_filter, *tmp;
+
+	aggr_module_destroy(vif->aggr_cntxt);
+
+	ar->avail_idx_map |= BIT(vif->fw_vif_idx);
+
+	if (vif->nw_type == ADHOC_NETWORK)
+		ar->ibss_if_active = false;
+
+	list_for_each_entry_safe(mc_filter, tmp, &vif->mc_filter, list) {
+		list_del(&mc_filter->list);
+		kfree(mc_filter);
+	}
+
+	unregister_netdevice(vif->ndev);
+
+	ar->num_vif--;
+}
+
+static const char ath6kl_gstrings_sta_stats[][ETH_GSTRING_LEN] = {
+	/* Common stats names used by many drivers. */
+	"tx_pkts_nic", "tx_bytes_nic", "rx_pkts_nic", "rx_bytes_nic",
+
+	/* TX stats. */
+	"d_tx_ucast_pkts", "d_tx_bcast_pkts",
+	"d_tx_ucast_bytes", "d_tx_bcast_bytes",
+	"d_tx_rts_ok", "d_tx_error", "d_tx_fail",
+	"d_tx_retry", "d_tx_multi_retry", "d_tx_rts_fail",
+	"d_tx_tkip_counter_measures",
+
+	/* RX Stats. */
+	"d_rx_ucast_pkts", "d_rx_ucast_rate", "d_rx_bcast_pkts",
+	"d_rx_ucast_bytes", "d_rx_bcast_bytes", "d_rx_frag_pkt",
+	"d_rx_error", "d_rx_crc_err", "d_rx_keycache_miss",
+	"d_rx_decrypt_crc_err", "d_rx_duplicate_frames",
+	"d_rx_mic_err", "d_rx_tkip_format_err", "d_rx_ccmp_format_err",
+	"d_rx_ccmp_replay_err",
+
+	/* Misc stats. */
+	"d_beacon_miss", "d_num_connects", "d_num_disconnects",
+	"d_beacon_avg_rssi", "d_arp_received", "d_arp_matched",
+	"d_arp_replied"
+};
+
+#define ATH6KL_STATS_LEN	ARRAY_SIZE(ath6kl_gstrings_sta_stats)
+
+static int ath6kl_get_sset_count(struct net_device *dev, int sset)
+{
+	int rv = 0;
+
+	if (sset == ETH_SS_STATS)
+		rv += ATH6KL_STATS_LEN;
+
+	if (rv == 0)
+		return -EOPNOTSUPP;
+	return rv;
+}
+
+static void ath6kl_get_stats(struct net_device *dev,
+			    struct ethtool_stats *stats,
+			    u64 *data)
+{
+	struct ath6kl_vif *vif = netdev_priv(dev);
+	struct ath6kl *ar = vif->ar;
+	int i = 0;
+	struct target_stats *tgt_stats;
+
+	memset(data, 0, sizeof(u64) * ATH6KL_STATS_LEN);
+
+	ath6kl_read_tgt_stats(ar, vif);
+
+	tgt_stats = &vif->target_stats;
+
+	data[i++] = tgt_stats->tx_ucast_pkt + tgt_stats->tx_bcast_pkt;
+	data[i++] = tgt_stats->tx_ucast_byte + tgt_stats->tx_bcast_byte;
+	data[i++] = tgt_stats->rx_ucast_pkt + tgt_stats->rx_bcast_pkt;
+	data[i++] = tgt_stats->rx_ucast_byte + tgt_stats->rx_bcast_byte;
+
+	data[i++] = tgt_stats->tx_ucast_pkt;
+	data[i++] = tgt_stats->tx_bcast_pkt;
+	data[i++] = tgt_stats->tx_ucast_byte;
+	data[i++] = tgt_stats->tx_bcast_byte;
+	data[i++] = tgt_stats->tx_rts_success_cnt;
+	data[i++] = tgt_stats->tx_err;
+	data[i++] = tgt_stats->tx_fail_cnt;
+	data[i++] = tgt_stats->tx_retry_cnt;
+	data[i++] = tgt_stats->tx_mult_retry_cnt;
+	data[i++] = tgt_stats->tx_rts_fail_cnt;
+	data[i++] = tgt_stats->tkip_cnter_measures_invoked;
+
+	data[i++] = tgt_stats->rx_ucast_pkt;
+	data[i++] = tgt_stats->rx_ucast_rate;
+	data[i++] = tgt_stats->rx_bcast_pkt;
+	data[i++] = tgt_stats->rx_ucast_byte;
+	data[i++] = tgt_stats->rx_bcast_byte;
+	data[i++] = tgt_stats->rx_frgment_pkt;
+	data[i++] = tgt_stats->rx_err;
+	data[i++] = tgt_stats->rx_crc_err;
+	data[i++] = tgt_stats->rx_key_cache_miss;
+	data[i++] = tgt_stats->rx_decrypt_err;
+	data[i++] = tgt_stats->rx_dupl_frame;
+	data[i++] = tgt_stats->tkip_local_mic_fail;
+	data[i++] = tgt_stats->tkip_fmt_err;
+	data[i++] = tgt_stats->ccmp_fmt_err;
+	data[i++] = tgt_stats->ccmp_replays;
+
+	data[i++] = tgt_stats->cs_bmiss_cnt;
+	data[i++] = tgt_stats->cs_connect_cnt;
+	data[i++] = tgt_stats->cs_discon_cnt;
+	data[i++] = tgt_stats->cs_ave_beacon_rssi;
+	data[i++] = tgt_stats->arp_received;
+	data[i++] = tgt_stats->arp_matched;
+	data[i++] = tgt_stats->arp_replied;
+
+	if (i !=  ATH6KL_STATS_LEN) {
+		WARN_ON_ONCE(1);
+		ath6kl_err("ethtool stats error, i: %d  STATS_LEN: %d\n",
+			   i, (int)ATH6KL_STATS_LEN);
+	}
+}
+
+/* These stats are per NIC, not really per vdev, so we just ignore dev. */
+static void ath6kl_get_strings(struct net_device *dev, u32 sset, u8 *data)
+{
+	int sz_sta_stats = 0;
+
+	if (sset == ETH_SS_STATS) {
+		sz_sta_stats = sizeof(ath6kl_gstrings_sta_stats);
+		memcpy(data, ath6kl_gstrings_sta_stats, sz_sta_stats);
+	}
+}
+
+static const struct ethtool_ops ath6kl_ethtool_ops = {
+	.get_drvinfo = cfg80211_get_drvinfo,
+	.get_link = ethtool_op_get_link,
+	.get_strings = ath6kl_get_strings,
+	.get_ethtool_stats = ath6kl_get_stats,
+	.get_sset_count = ath6kl_get_sset_count,
+};
+
+struct wireless_dev *ath6kl_interface_add(struct ath6kl *ar, const char *name,
+					  unsigned char name_assign_type,
+					  enum nl80211_iftype type,
+					  u8 fw_vif_idx, u8 nw_type)
+{
+	struct net_device *ndev;
+	struct ath6kl_vif *vif;
+
+	ndev = alloc_netdev(sizeof(*vif), name, name_assign_type, ether_setup);
+	if (!ndev)
+		return NULL;
+
+	vif = netdev_priv(ndev);
+	ndev->ieee80211_ptr = &vif->wdev;
+	vif->wdev.wiphy = ar->wiphy;
+	vif->ar = ar;
+	vif->ndev = ndev;
+	SET_NETDEV_DEV(ndev, wiphy_dev(vif->wdev.wiphy));
+	vif->wdev.netdev = ndev;
+	vif->wdev.iftype = type;
+	vif->fw_vif_idx = fw_vif_idx;
+	vif->nw_type = nw_type;
+	vif->next_mode = nw_type;
+	vif->listen_intvl_t = ATH6KL_DEFAULT_LISTEN_INTVAL;
+	vif->bmiss_time_t = ATH6KL_DEFAULT_BMISS_TIME;
+	vif->bg_scan_period = 0;
+	vif->htcap[NL80211_BAND_2GHZ].ht_enable = true;
+	vif->htcap[NL80211_BAND_5GHZ].ht_enable = true;
+
+	memcpy(ndev->dev_addr, ar->mac_addr, ETH_ALEN);
+	if (fw_vif_idx != 0) {
+		ndev->dev_addr[0] = (ndev->dev_addr[0] ^ (1 << fw_vif_idx)) |
+				     0x2;
+		if (test_bit(ATH6KL_FW_CAPABILITY_CUSTOM_MAC_ADDR,
+			     ar->fw_capabilities))
+			ndev->dev_addr[4] ^= 0x80;
+	}
+
+	init_netdev(ndev);
+
+	ath6kl_init_control_info(vif);
+
+	if (ath6kl_cfg80211_vif_init(vif))
+		goto err;
+
+	netdev_set_default_ethtool_ops(ndev, &ath6kl_ethtool_ops);
+
+	if (register_netdevice(ndev))
+		goto err;
+
+	ar->avail_idx_map &= ~BIT(fw_vif_idx);
+	vif->sme_state = SME_DISCONNECTED;
+	set_bit(WLAN_ENABLED, &vif->flags);
+	ar->wlan_pwr_state = WLAN_POWER_STATE_ON;
+
+	if (type == NL80211_IFTYPE_ADHOC)
+		ar->ibss_if_active = true;
+
+	spin_lock_bh(&ar->list_lock);
+	list_add_tail(&vif->list, &ar->vif_list);
+	spin_unlock_bh(&ar->list_lock);
+
+	return &vif->wdev;
+
+err:
+	aggr_module_destroy(vif->aggr_cntxt);
+	free_netdev(ndev);
+	return NULL;
+}
+
+#ifdef CONFIG_PM
+static const struct wiphy_wowlan_support ath6kl_wowlan_support = {
+	.flags = WIPHY_WOWLAN_MAGIC_PKT |
+		 WIPHY_WOWLAN_DISCONNECT |
+		 WIPHY_WOWLAN_GTK_REKEY_FAILURE  |
+		 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
+		 WIPHY_WOWLAN_EAP_IDENTITY_REQ   |
+		 WIPHY_WOWLAN_4WAY_HANDSHAKE,
+	.n_patterns = WOW_MAX_FILTERS_PER_LIST,
+	.pattern_min_len = 1,
+	.pattern_max_len = WOW_PATTERN_SIZE,
+};
+#endif
+
+int ath6kl_cfg80211_init(struct ath6kl *ar)
+{
+	struct wiphy *wiphy = ar->wiphy;
+	bool band_2gig = false, band_5gig = false, ht = false;
+	int ret;
+
+	wiphy->mgmt_stypes = ath6kl_mgmt_stypes;
+
+	wiphy->max_remain_on_channel_duration = 5000;
+
+	/* set device pointer for wiphy */
+	set_wiphy_dev(wiphy, ar->dev);
+
+	wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
+				 BIT(NL80211_IFTYPE_ADHOC) |
+				 BIT(NL80211_IFTYPE_AP);
+	if (ar->p2p) {
+		wiphy->interface_modes |= BIT(NL80211_IFTYPE_P2P_GO) |
+					  BIT(NL80211_IFTYPE_P2P_CLIENT);
+	}
+
+	if (IS_ENABLED(CONFIG_ATH6KL_REGDOMAIN) &&
+	    test_bit(ATH6KL_FW_CAPABILITY_REGDOMAIN, ar->fw_capabilities)) {
+		wiphy->reg_notifier = ath6kl_cfg80211_reg_notify;
+		ar->wiphy->features |= NL80211_FEATURE_CELL_BASE_REG_HINTS;
+	}
+
+	/* max num of ssids that can be probed during scanning */
+	wiphy->max_scan_ssids = MAX_PROBED_SSIDS;
+
+	/* max num of ssids that can be matched after scan */
+	if (test_bit(ATH6KL_FW_CAPABILITY_SCHED_SCAN_MATCH_LIST,
+		     ar->fw_capabilities))
+		wiphy->max_match_sets = MAX_PROBED_SSIDS;
+
+	wiphy->max_scan_ie_len = 1000; /* FIX: what is correct limit? */
+	switch (ar->hw.cap) {
+	case WMI_11AN_CAP:
+		ht = true;
+		/* fall through */
+	case WMI_11A_CAP:
+		band_5gig = true;
+		break;
+	case WMI_11GN_CAP:
+		ht = true;
+		/* fall through */
+	case WMI_11G_CAP:
+		band_2gig = true;
+		break;
+	case WMI_11AGN_CAP:
+		ht = true;
+		/* fall through */
+	case WMI_11AG_CAP:
+		band_2gig = true;
+		band_5gig = true;
+		break;
+	default:
+		ath6kl_err("invalid phy capability!\n");
+		return -EINVAL;
+	}
+
+	/*
+	 * Even if the fw has HT support, advertise HT cap only when
+	 * the firmware has support to override RSN capability, otherwise
+	 * 4-way handshake would fail.
+	 */
+	if (!(ht &&
+	      test_bit(ATH6KL_FW_CAPABILITY_RSN_CAP_OVERRIDE,
+		       ar->fw_capabilities))) {
+		ath6kl_band_2ghz.ht_cap.cap = 0;
+		ath6kl_band_2ghz.ht_cap.ht_supported = false;
+		ath6kl_band_5ghz.ht_cap.cap = 0;
+		ath6kl_band_5ghz.ht_cap.ht_supported = false;
+
+		if (ht)
+			ath6kl_err("Firmware lacks RSN-CAP-OVERRIDE, so HT (802.11n) is disabled.");
+	}
+
+	if (test_bit(ATH6KL_FW_CAPABILITY_64BIT_RATES,
+		     ar->fw_capabilities)) {
+		ath6kl_band_2ghz.ht_cap.mcs.rx_mask[0] = 0xff;
+		ath6kl_band_5ghz.ht_cap.mcs.rx_mask[0] = 0xff;
+		ath6kl_band_2ghz.ht_cap.mcs.rx_mask[1] = 0xff;
+		ath6kl_band_5ghz.ht_cap.mcs.rx_mask[1] = 0xff;
+		ar->hw.tx_ant = 0x3; /* mask, 2 antenna */
+		ar->hw.rx_ant = 0x3;
+	} else {
+		ath6kl_band_2ghz.ht_cap.mcs.rx_mask[0] = 0xff;
+		ath6kl_band_5ghz.ht_cap.mcs.rx_mask[0] = 0xff;
+		ar->hw.tx_ant = 1;
+		ar->hw.rx_ant = 1;
+	}
+
+	wiphy->available_antennas_tx = ar->hw.tx_ant;
+	wiphy->available_antennas_rx = ar->hw.rx_ant;
+
+	if (band_2gig)
+		wiphy->bands[NL80211_BAND_2GHZ] = &ath6kl_band_2ghz;
+	if (band_5gig)
+		wiphy->bands[NL80211_BAND_5GHZ] = &ath6kl_band_5ghz;
+
+	wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
+
+	wiphy->cipher_suites = cipher_suites;
+	wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
+
+#ifdef CONFIG_PM
+	wiphy->wowlan = &ath6kl_wowlan_support;
+#endif
+
+	wiphy->max_sched_scan_ssids = MAX_PROBED_SSIDS;
+
+	ar->wiphy->flags |= WIPHY_FLAG_SUPPORTS_FW_ROAM |
+			    WIPHY_FLAG_HAVE_AP_SME |
+			    WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
+			    WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD;
+
+	if (test_bit(ATH6KL_FW_CAPABILITY_SCHED_SCAN_V2, ar->fw_capabilities))
+		ar->wiphy->max_sched_scan_reqs = 1;
+
+	if (test_bit(ATH6KL_FW_CAPABILITY_INACTIVITY_TIMEOUT,
+		     ar->fw_capabilities))
+		ar->wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER;
+
+	ar->wiphy->probe_resp_offload =
+		NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
+		NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
+		NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
+
+	ret = wiphy_register(wiphy);
+	if (ret < 0) {
+		ath6kl_err("couldn't register wiphy device\n");
+		return ret;
+	}
+
+	ar->wiphy_registered = true;
+
+	return 0;
+}
+
+void ath6kl_cfg80211_cleanup(struct ath6kl *ar)
+{
+	wiphy_unregister(ar->wiphy);
+
+	ar->wiphy_registered = false;
+}
+
+struct ath6kl *ath6kl_cfg80211_create(void)
+{
+	struct ath6kl *ar;
+	struct wiphy *wiphy;
+
+	/* create a new wiphy for use with cfg80211 */
+	wiphy = wiphy_new(&ath6kl_cfg80211_ops, sizeof(struct ath6kl));
+
+	if (!wiphy) {
+		ath6kl_err("couldn't allocate wiphy device\n");
+		return NULL;
+	}
+
+	ar = wiphy_priv(wiphy);
+	ar->wiphy = wiphy;
+
+	return ar;
+}
+
+/* Note: ar variable must not be accessed after calling this! */
+void ath6kl_cfg80211_destroy(struct ath6kl *ar)
+{
+	int i;
+
+	for (i = 0; i < AP_MAX_NUM_STA; i++)
+		kfree(ar->sta_list[i].aggr_conn);
+
+	wiphy_free(ar->wiphy);
+}
+