sta_ioctl.c 42.2 KB
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/*
 * Marvell Wireless LAN device driver: functions for station ioctl
 *
 * Copyright (C) 2011, Marvell International Ltd.
 *
 * This software file (the "File") is distributed by Marvell International
 * Ltd. under the terms of the GNU General Public License Version 2, June 1991
 * (the "License").  You may use, redistribute and/or modify this File in
 * accordance with the terms and conditions of the License, a copy of which
 * is available by writing to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
 * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
 *
 * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
 * ARE EXPRESSLY DISCLAIMED.  The License provides additional details about
 * this warranty disclaimer.
 */

#include "decl.h"
#include "ioctl.h"
#include "util.h"
#include "fw.h"
#include "main.h"
#include "wmm.h"
#include "11n.h"
#include "cfg80211.h"

/*
 * Copies the multicast address list from device to driver.
 *
 * This function does not validate the destination memory for
 * size, and the calling function must ensure enough memory is
 * available.
 */
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int mwifiex_copy_mcast_addr(struct mwifiex_multicast_list *mlist,
			    struct net_device *dev)
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{
	int i = 0;
	struct netdev_hw_addr *ha;

	netdev_for_each_mc_addr(ha, dev)
		memcpy(&mlist->mac_list[i++], ha->addr, ETH_ALEN);

	return i;
}

/*
 * Wait queue completion handler.
 *
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 * This function waits on a cmd wait queue. It also cancels the pending
 * request after waking up, in case of errors.
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 */
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int mwifiex_wait_queue_complete(struct mwifiex_adapter *adapter)
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{
	bool cancel_flag = false;
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	int status = adapter->cmd_wait_q.status;
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	struct cmd_ctrl_node *cmd_queued = adapter->cmd_queued;
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	adapter->cmd_queued = NULL;
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	dev_dbg(adapter->dev, "cmd pending\n");
	atomic_inc(&adapter->cmd_pending);
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	/* Status pending, wake up main process */
	queue_work(adapter->workqueue, &adapter->main_work);
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	/* Wait for completion */
	wait_event_interruptible(adapter->cmd_wait_q.wait,
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					*(cmd_queued->condition));
	if (!*(cmd_queued->condition))
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		cancel_flag = true;
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	if (cancel_flag) {
		mwifiex_cancel_pending_ioctl(adapter);
		dev_dbg(adapter->dev, "cmd cancel\n");
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	}
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	adapter->cmd_wait_q.status = 0;
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	return status;
}

/*
 * This function prepares the correct firmware command and
 * issues it to set the multicast list.
 *
 * This function can be used to enable promiscuous mode, or enable all
 * multicast packets, or to enable selective multicast.
 */
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int mwifiex_request_set_multicast_list(struct mwifiex_private *priv,
				struct mwifiex_multicast_list *mcast_list)
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{
	int ret = 0;
	u16 old_pkt_filter;

	old_pkt_filter = priv->curr_pkt_filter;

	if (mcast_list->mode == MWIFIEX_PROMISC_MODE) {
		dev_dbg(priv->adapter->dev, "info: Enable Promiscuous mode\n");
		priv->curr_pkt_filter |= HostCmd_ACT_MAC_PROMISCUOUS_ENABLE;
		priv->curr_pkt_filter &=
			~HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE;
	} else {
		/* Multicast */
		priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_PROMISCUOUS_ENABLE;
		if (mcast_list->mode == MWIFIEX_MULTICAST_MODE) {
			dev_dbg(priv->adapter->dev,
				"info: Enabling All Multicast!\n");
			priv->curr_pkt_filter |=
				HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE;
		} else {
			priv->curr_pkt_filter &=
				~HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE;
			if (mcast_list->num_multicast_addr) {
				dev_dbg(priv->adapter->dev,
					"info: Set multicast list=%d\n",
				       mcast_list->num_multicast_addr);
				/* Set multicast addresses to firmware */
				if (old_pkt_filter == priv->curr_pkt_filter) {
					/* Send request to firmware */
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					ret = mwifiex_send_cmd_async(priv,
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						HostCmd_CMD_MAC_MULTICAST_ADR,
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						HostCmd_ACT_GEN_SET, 0,
						mcast_list);
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				} else {
					/* Send request to firmware */
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					ret = mwifiex_send_cmd_async(priv,
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						HostCmd_CMD_MAC_MULTICAST_ADR,
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						HostCmd_ACT_GEN_SET, 0,
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						mcast_list);
				}
			}
		}
	}
	dev_dbg(priv->adapter->dev,
		"info: old_pkt_filter=%#x, curr_pkt_filter=%#x\n",
	       old_pkt_filter, priv->curr_pkt_filter);
	if (old_pkt_filter != priv->curr_pkt_filter) {
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		ret = mwifiex_send_cmd_async(priv, HostCmd_CMD_MAC_CONTROL,
					     HostCmd_ACT_GEN_SET,
					     0, &priv->curr_pkt_filter);
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	}

	return ret;
}

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/*
 * This function fills bss descriptor structure using provided
 * information.
 */
int mwifiex_fill_new_bss_desc(struct mwifiex_private *priv,
			      u8 *bssid, s32 rssi, u8 *ie_buf,
			      size_t ie_len, u16 beacon_period,
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			      u16 cap_info_bitmap, u8 band,
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			      struct mwifiex_bssdescriptor *bss_desc)
{
	int ret;

	memcpy(bss_desc->mac_address, bssid, ETH_ALEN);
	bss_desc->rssi = rssi;
	bss_desc->beacon_buf = ie_buf;
	bss_desc->beacon_buf_size = ie_len;
	bss_desc->beacon_period = beacon_period;
	bss_desc->cap_info_bitmap = cap_info_bitmap;
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	bss_desc->bss_band = band;
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	if (bss_desc->cap_info_bitmap & WLAN_CAPABILITY_PRIVACY) {
		dev_dbg(priv->adapter->dev, "info: InterpretIE: AP WEP enabled\n");
		bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_8021X_WEP;
	} else {
		bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_ACCEPT_ALL;
	}
	if (bss_desc->cap_info_bitmap & WLAN_CAPABILITY_IBSS)
		bss_desc->bss_mode = NL80211_IFTYPE_ADHOC;
	else
		bss_desc->bss_mode = NL80211_IFTYPE_STATION;

	ret = mwifiex_update_bss_desc_with_ie(priv->adapter, bss_desc,
					      ie_buf, ie_len);

	return ret;
}

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/*
 * In Ad-Hoc mode, the IBSS is created if not found in scan list.
 * In both Ad-Hoc and infra mode, an deauthentication is performed
 * first.
 */
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int mwifiex_bss_start(struct mwifiex_private *priv, struct cfg80211_bss *bss,
		      struct mwifiex_802_11_ssid *req_ssid)
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{
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	int ret;
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	struct mwifiex_adapter *adapter = priv->adapter;
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	struct mwifiex_bssdescriptor *bss_desc = NULL;
	u8 *beacon_ie = NULL;
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	priv->scan_block = false;
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	if (bss) {
		/* Allocate and fill new bss descriptor */
		bss_desc = kzalloc(sizeof(struct mwifiex_bssdescriptor),
				GFP_KERNEL);
		if (!bss_desc) {
			dev_err(priv->adapter->dev, " failed to alloc bss_desc\n");
			return -ENOMEM;
		}
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		beacon_ie = kmemdup(bss->information_elements,
					bss->len_beacon_ies, GFP_KERNEL);
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		if (!beacon_ie) {
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			kfree(bss_desc);
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			dev_err(priv->adapter->dev, " failed to alloc beacon_ie\n");
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			return -ENOMEM;
		}
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		ret = mwifiex_fill_new_bss_desc(priv, bss->bssid, bss->signal,
						beacon_ie, bss->len_beacon_ies,
						bss->beacon_interval,
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						bss->capability,
						*(u8 *)bss->priv, bss_desc);
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		if (ret)
			goto done;
	}
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	if (priv->bss_mode == NL80211_IFTYPE_STATION) {
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		/* Infra mode */
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		ret = mwifiex_deauthenticate(priv, NULL);
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		if (ret)
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			goto done;

		ret = mwifiex_check_network_compatibility(priv, bss_desc);
		if (ret)
			goto done;
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		dev_dbg(adapter->dev, "info: SSID found in scan list ... "
				      "associating...\n");

		if (!netif_queue_stopped(priv->netdev))
			netif_stop_queue(priv->netdev);
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		/* Clear any past association response stored for
		 * application retrieval */
		priv->assoc_rsp_size = 0;
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		ret = mwifiex_associate(priv, bss_desc);
		if (bss)
			cfg80211_put_bss(bss);
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	} else {
		/* Adhoc mode */
		/* If the requested SSID matches current SSID, return */
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		if (bss_desc && bss_desc->ssid.ssid_len &&
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		    (!mwifiex_ssid_cmp
		     (&priv->curr_bss_params.bss_descriptor.ssid,
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		      &bss_desc->ssid))) {
			kfree(bss_desc);
			kfree(beacon_ie);
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			return 0;
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		}
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		/* Exit Adhoc mode first */
		dev_dbg(adapter->dev, "info: Sending Adhoc Stop\n");
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		ret = mwifiex_deauthenticate(priv, NULL);
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		if (ret)
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			goto done;
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		priv->adhoc_is_link_sensed = false;

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		ret = mwifiex_check_network_compatibility(priv, bss_desc);

		if (!netif_queue_stopped(priv->netdev))
			netif_stop_queue(priv->netdev);

		if (!ret) {
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			dev_dbg(adapter->dev, "info: network found in scan"
							" list. Joining...\n");
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			ret = mwifiex_adhoc_join(priv, bss_desc);
			if (bss)
				cfg80211_put_bss(bss);
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		} else {
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			dev_dbg(adapter->dev, "info: Network not found in "
				"the list, creating adhoc with ssid = %s\n",
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				req_ssid->ssid);
			ret = mwifiex_adhoc_start(priv, req_ssid);
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		}
	}

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done:
	kfree(bss_desc);
	kfree(beacon_ie);
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	return ret;
}

/*
 * IOCTL request handler to set host sleep configuration.
 *
 * This function prepares the correct firmware command and
 * issues it.
 */
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static int mwifiex_set_hs_params(struct mwifiex_private *priv, u16 action,
				 int cmd_type, struct mwifiex_ds_hs_cfg *hs_cfg)
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{
	struct mwifiex_adapter *adapter = priv->adapter;
	int status = 0;
	u32 prev_cond = 0;

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	if (!hs_cfg)
		return -ENOMEM;

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	switch (action) {
	case HostCmd_ACT_GEN_SET:
		if (adapter->pps_uapsd_mode) {
			dev_dbg(adapter->dev, "info: Host Sleep IOCTL"
				" is blocked in UAPSD/PPS mode\n");
			status = -1;
			break;
		}
		if (hs_cfg->is_invoke_hostcmd) {
			if (hs_cfg->conditions == HOST_SLEEP_CFG_CANCEL) {
				if (!adapter->is_hs_configured)
					/* Already cancelled */
					break;
				/* Save previous condition */
				prev_cond = le32_to_cpu(adapter->hs_cfg
							.conditions);
				adapter->hs_cfg.conditions =
						cpu_to_le32(hs_cfg->conditions);
			} else if (hs_cfg->conditions) {
				adapter->hs_cfg.conditions =
						cpu_to_le32(hs_cfg->conditions);
				adapter->hs_cfg.gpio = (u8)hs_cfg->gpio;
				if (hs_cfg->gap)
					adapter->hs_cfg.gap = (u8)hs_cfg->gap;
			} else if (adapter->hs_cfg.conditions ==
						cpu_to_le32(
						HOST_SLEEP_CFG_CANCEL)) {
				/* Return failure if no parameters for HS
				   enable */
				status = -1;
				break;
			}
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			if (cmd_type == MWIFIEX_SYNC_CMD)
				status = mwifiex_send_cmd_sync(priv,
						HostCmd_CMD_802_11_HS_CFG_ENH,
						HostCmd_ACT_GEN_SET, 0,
						&adapter->hs_cfg);
			else
				status = mwifiex_send_cmd_async(priv,
						HostCmd_CMD_802_11_HS_CFG_ENH,
						HostCmd_ACT_GEN_SET, 0,
						&adapter->hs_cfg);
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			if (hs_cfg->conditions == HOST_SLEEP_CFG_CANCEL)
				/* Restore previous condition */
				adapter->hs_cfg.conditions =
						cpu_to_le32(prev_cond);
		} else {
			adapter->hs_cfg.conditions =
				cpu_to_le32(hs_cfg->conditions);
			adapter->hs_cfg.gpio = (u8)hs_cfg->gpio;
			adapter->hs_cfg.gap = (u8)hs_cfg->gap;
		}
		break;
	case HostCmd_ACT_GEN_GET:
		hs_cfg->conditions = le32_to_cpu(adapter->hs_cfg.conditions);
		hs_cfg->gpio = adapter->hs_cfg.gpio;
		hs_cfg->gap = adapter->hs_cfg.gap;
		break;
	default:
		status = -1;
		break;
	}

	return status;
}

/*
 * Sends IOCTL request to cancel the existing Host Sleep configuration.
 *
 * This function allocates the IOCTL request buffer, fills it
 * with requisite parameters and calls the IOCTL handler.
 */
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int mwifiex_cancel_hs(struct mwifiex_private *priv, int cmd_type)
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{
	struct mwifiex_ds_hs_cfg hscfg;

	hscfg.conditions = HOST_SLEEP_CFG_CANCEL;
	hscfg.is_invoke_hostcmd = true;

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	return mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_SET,
				    cmd_type, &hscfg);
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}
EXPORT_SYMBOL_GPL(mwifiex_cancel_hs);

/*
 * Sends IOCTL request to cancel the existing Host Sleep configuration.
 *
 * This function allocates the IOCTL request buffer, fills it
 * with requisite parameters and calls the IOCTL handler.
 */
int mwifiex_enable_hs(struct mwifiex_adapter *adapter)
{
	struct mwifiex_ds_hs_cfg hscfg;

	if (adapter->hs_activated) {
		dev_dbg(adapter->dev, "cmd: HS Already actived\n");
		return true;
	}

	adapter->hs_activate_wait_q_woken = false;

	memset(&hscfg, 0, sizeof(struct mwifiex_hs_config_param));
	hscfg.is_invoke_hostcmd = true;

	if (mwifiex_set_hs_params(mwifiex_get_priv(adapter,
						       MWIFIEX_BSS_ROLE_STA),
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				  HostCmd_ACT_GEN_SET, MWIFIEX_SYNC_CMD,
				  &hscfg)) {
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		dev_err(adapter->dev, "IOCTL request HS enable failed\n");
		return false;
	}

	wait_event_interruptible(adapter->hs_activate_wait_q,
			adapter->hs_activate_wait_q_woken);

	return true;
}
EXPORT_SYMBOL_GPL(mwifiex_enable_hs);

/*
 * IOCTL request handler to get BSS information.
 *
 * This function collates the information from different driver structures
 * to send to the user.
 */
int mwifiex_get_bss_info(struct mwifiex_private *priv,
			 struct mwifiex_bss_info *info)
{
	struct mwifiex_adapter *adapter = priv->adapter;
	struct mwifiex_bssdescriptor *bss_desc;

	if (!info)
		return -1;

	bss_desc = &priv->curr_bss_params.bss_descriptor;

	info->bss_mode = priv->bss_mode;

	memcpy(&info->ssid, &bss_desc->ssid,
	       sizeof(struct mwifiex_802_11_ssid));

	memcpy(&info->bssid, &bss_desc->mac_address, ETH_ALEN);

	info->bss_chan = bss_desc->channel;

	info->region_code = adapter->region_code;

	info->media_connected = priv->media_connected;

	info->max_power_level = priv->max_tx_power_level;
	info->min_power_level = priv->min_tx_power_level;

	info->adhoc_state = priv->adhoc_state;

	info->bcn_nf_last = priv->bcn_nf_last;

	if (priv->sec_info.wep_status == MWIFIEX_802_11_WEP_ENABLED)
		info->wep_status = true;
	else
		info->wep_status = false;

	info->is_hs_configured = adapter->is_hs_configured;
	info->is_deep_sleep = adapter->is_deep_sleep;

	return 0;
}

/*
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 * The function sets band configurations.
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 *
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 * it performs extra checks to make sure the Ad-Hoc
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 * band and channel are compatible. Otherwise it returns an error.
 *
 */
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int mwifiex_set_radio_band_cfg(struct mwifiex_private *priv,
			       struct mwifiex_ds_band_cfg *radio_cfg)
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{
	struct mwifiex_adapter *adapter = priv->adapter;
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	u8 infra_band, adhoc_band;
	u32 adhoc_channel;
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	infra_band = (u8) radio_cfg->config_bands;
	adhoc_band = (u8) radio_cfg->adhoc_start_band;
	adhoc_channel = radio_cfg->adhoc_channel;

	/* SET Infra band */
	if ((infra_band | adapter->fw_bands) & ~adapter->fw_bands)
		return -1;

	adapter->config_bands = infra_band;

	/* SET Ad-hoc Band */
	if ((adhoc_band | adapter->fw_bands) & ~adapter->fw_bands)
		return -1;

	if (adhoc_band)
		adapter->adhoc_start_band = adhoc_band;
	adapter->chan_offset = (u8) radio_cfg->sec_chan_offset;
	/*
	 * If no adhoc_channel is supplied verify if the existing adhoc
	 * channel compiles with new adhoc_band
	 */
	if (!adhoc_channel) {
		if (!mwifiex_get_cfp_by_band_and_channel_from_cfg80211
		     (priv, adapter->adhoc_start_band,
		     priv->adhoc_channel)) {
			/* Pass back the default channel */
			radio_cfg->adhoc_channel = DEFAULT_AD_HOC_CHANNEL;
			if ((adapter->adhoc_start_band & BAND_A)
			    || (adapter->adhoc_start_band & BAND_AN))
				radio_cfg->adhoc_channel =
					DEFAULT_AD_HOC_CHANNEL_A;
		}
	} else {	/* Retrurn error if adhoc_band and
			   adhoc_channel combination is invalid */
		if (!mwifiex_get_cfp_by_band_and_channel_from_cfg80211
		    (priv, adapter->adhoc_start_band, (u16) adhoc_channel))
			return -1;
		priv->adhoc_channel = (u8) adhoc_channel;
	}
	if ((adhoc_band & BAND_GN) || (adhoc_band & BAND_AN))
		adapter->adhoc_11n_enabled = true;
	else
		adapter->adhoc_11n_enabled = false;

	return 0;
}

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/*
 * The function disables auto deep sleep mode.
 */
int mwifiex_disable_auto_ds(struct mwifiex_private *priv)
{
	struct mwifiex_ds_auto_ds auto_ds;

	auto_ds.auto_ds = DEEP_SLEEP_OFF;

	return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_PS_MODE_ENH,
				     DIS_AUTO_PS, BITMAP_AUTO_DS, &auto_ds);
}
EXPORT_SYMBOL_GPL(mwifiex_disable_auto_ds);

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/*
 * IOCTL request handler to set/get active channel.
 *
 * This function performs validity checking on channel/frequency
 * compatibility and returns failure if not valid.
 */
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int mwifiex_bss_set_channel(struct mwifiex_private *priv,
			    struct mwifiex_chan_freq_power *chan)
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{
	struct mwifiex_adapter *adapter = priv->adapter;
	struct mwifiex_chan_freq_power *cfp = NULL;

	if (!chan)
		return -1;

	if (!chan->channel && !chan->freq)
		return -1;
	if (adapter->adhoc_start_band & BAND_AN)
		adapter->adhoc_start_band = BAND_G | BAND_B | BAND_GN;
	else if (adapter->adhoc_start_band & BAND_A)
		adapter->adhoc_start_band = BAND_G | BAND_B;
	if (chan->channel) {
		if (chan->channel <= MAX_CHANNEL_BAND_BG)
			cfp = mwifiex_get_cfp_by_band_and_channel_from_cfg80211
					(priv, 0, (u16) chan->channel);
		if (!cfp) {
			cfp = mwifiex_get_cfp_by_band_and_channel_from_cfg80211
					(priv, BAND_A, (u16) chan->channel);
			if (cfp) {
				if (adapter->adhoc_11n_enabled)
					adapter->adhoc_start_band = BAND_A
						| BAND_AN;
				else
					adapter->adhoc_start_band = BAND_A;
			}
		}
	} else {
		if (chan->freq <= MAX_FREQUENCY_BAND_BG)
			cfp = mwifiex_get_cfp_by_band_and_freq_from_cfg80211(
							priv, 0, chan->freq);
		if (!cfp) {
			cfp = mwifiex_get_cfp_by_band_and_freq_from_cfg80211
						  (priv, BAND_A, chan->freq);
			if (cfp) {
				if (adapter->adhoc_11n_enabled)
					adapter->adhoc_start_band = BAND_A
						| BAND_AN;
				else
					adapter->adhoc_start_band = BAND_A;
			}
		}
	}
	if (!cfp || !cfp->channel) {
		dev_err(adapter->dev, "invalid channel/freq\n");
		return -1;
	}
	priv->adhoc_channel = (u8) cfp->channel;
	chan->channel = cfp->channel;
	chan->freq = cfp->freq;

	return 0;
}

/*
 * IOCTL request handler to set/get Ad-Hoc channel.
 *
 * This function prepares the correct firmware command and
 * issues it to set or get the ad-hoc channel.
 */
static int mwifiex_bss_ioctl_ibss_channel(struct mwifiex_private *priv,
					  u16 action, u16 *channel)
{
	if (action == HostCmd_ACT_GEN_GET) {
		if (!priv->media_connected) {
			*channel = priv->adhoc_channel;
624
			return 0;
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		}
	} else {
		priv->adhoc_channel = (u8) *channel;
	}

630
	return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_RF_CHANNEL,
631
				    action, 0, channel);
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}

/*
 * IOCTL request handler to change Ad-Hoc channel.
 *
 * This function allocates the IOCTL request buffer, fills it
 * with requisite parameters and calls the IOCTL handler.
 *
 * The function follows the following steps to perform the change -
 *      - Get current IBSS information
 *      - Get current channel
 *      - If no change is required, return
 *      - If not connected, change channel and return
 *      - If connected,
 *          - Disconnect
 *          - Change channel
 *          - Perform specific SSID scan with same SSID
 *          - Start/Join the IBSS
 */
int
mwifiex_drv_change_adhoc_chan(struct mwifiex_private *priv, int channel)
{
654
	int ret;
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	struct mwifiex_bss_info bss_info;
	struct mwifiex_ssid_bssid ssid_bssid;
	u16 curr_chan = 0;
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	struct cfg80211_bss *bss = NULL;
	struct ieee80211_channel *chan;
660
	enum ieee80211_band band;
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	memset(&bss_info, 0, sizeof(bss_info));

	/* Get BSS information */
	if (mwifiex_get_bss_info(priv, &bss_info))
		return -1;

	/* Get current channel */
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	ret = mwifiex_bss_ioctl_ibss_channel(priv, HostCmd_ACT_GEN_GET,
					     &curr_chan);
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	if (curr_chan == channel) {
		ret = 0;
		goto done;
	}
	dev_dbg(priv->adapter->dev, "cmd: updating channel from %d to %d\n",
			curr_chan, channel);

	if (!bss_info.media_connected) {
		ret = 0;
		goto done;
	}

	/* Do disonnect */
	memset(&ssid_bssid, 0, ETH_ALEN);
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	ret = mwifiex_deauthenticate(priv, ssid_bssid.bssid);
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	ret = mwifiex_bss_ioctl_ibss_channel(priv, HostCmd_ACT_GEN_SET,
					     (u16 *) &channel);
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	/* Do specific SSID scanning */
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	if (mwifiex_request_scan(priv, &bss_info.ssid)) {
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		ret = -1;
		goto done;
	}

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	band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
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	chan = __ieee80211_get_channel(priv->wdev->wiphy,
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			ieee80211_channel_to_frequency(channel, band));
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	/* Find the BSS we want using available scan results */
	bss = cfg80211_get_bss(priv->wdev->wiphy, chan, bss_info.bssid,
			       bss_info.ssid.ssid, bss_info.ssid.ssid_len,
			       WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS);
	if (!bss)
		wiphy_warn(priv->wdev->wiphy, "assoc: bss %pM not in scan results\n",
			  bss_info.bssid);

	ret = mwifiex_bss_start(priv, bss, &bss_info.ssid);
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done:
	return ret;
}

/*
 * IOCTL request handler to get rate.
 *
 * This function prepares the correct firmware command and
 * issues it to get the current rate if it is connected,
 * otherwise, the function returns the lowest supported rate
 * for the band.
 */
static int mwifiex_rate_ioctl_get_rate_value(struct mwifiex_private *priv,
					     struct mwifiex_rate_cfg *rate_cfg)
{
	rate_cfg->is_rate_auto = priv->is_data_rate_auto;
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	return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_TX_RATE_QUERY,
				     HostCmd_ACT_GEN_GET, 0, NULL);
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}

/*
 * IOCTL request handler to set rate.
 *
 * This function prepares the correct firmware command and
 * issues it to set the current rate.
 *
 * The function also performs validation checking on the supplied value.
 */
static int mwifiex_rate_ioctl_set_rate_value(struct mwifiex_private *priv,
					     struct mwifiex_rate_cfg *rate_cfg)
{
	u8 rates[MWIFIEX_SUPPORTED_RATES];
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	u8 *rate;
	int rate_index, ret;
744
	u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
745
	u32 i;
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	struct mwifiex_adapter *adapter = priv->adapter;

	if (rate_cfg->is_rate_auto) {
		memset(bitmap_rates, 0, sizeof(bitmap_rates));
		/* Support all HR/DSSS rates */
		bitmap_rates[0] = 0x000F;
		/* Support all OFDM rates */
		bitmap_rates[1] = 0x00FF;
		/* Support all HT-MCSs rate */
		for (i = 0; i < ARRAY_SIZE(priv->bitmap_rates) - 3; i++)
			bitmap_rates[i + 2] = 0xFFFF;
		bitmap_rates[9] = 0x3FFF;
	} else {
		memset(rates, 0, sizeof(rates));
		mwifiex_get_active_data_rates(priv, rates);
		rate = rates;
		for (i = 0; (rate[i] && i < MWIFIEX_SUPPORTED_RATES); i++) {
			dev_dbg(adapter->dev, "info: rate=%#x wanted=%#x\n",
				rate[i], rate_cfg->rate);
			if ((rate[i] & 0x7f) == (rate_cfg->rate & 0x7f))
				break;
		}
768
		if ((i == MWIFIEX_SUPPORTED_RATES) || !rate[i]) {
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			dev_err(adapter->dev, "fixed data rate %#x is out "
			       "of range\n", rate_cfg->rate);
			return -1;
		}
		memset(bitmap_rates, 0, sizeof(bitmap_rates));

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		rate_index = mwifiex_data_rate_to_index(rate_cfg->rate);
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		/* Only allow b/g rates to be set */
		if (rate_index >= MWIFIEX_RATE_INDEX_HRDSSS0 &&
		    rate_index <= MWIFIEX_RATE_INDEX_HRDSSS3) {
			bitmap_rates[0] = 1 << rate_index;
		} else {
			rate_index -= 1; /* There is a 0x00 in the table */
			if (rate_index >= MWIFIEX_RATE_INDEX_OFDM0 &&
			    rate_index <= MWIFIEX_RATE_INDEX_OFDM7)
				bitmap_rates[1] = 1 << (rate_index -
						   MWIFIEX_RATE_INDEX_OFDM0);
		}
	}

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	ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_TX_RATE_CFG,
				    HostCmd_ACT_GEN_SET, 0, bitmap_rates);
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	return ret;
}

/*
 * IOCTL request handler to set/get rate.
 *
 * This function can be used to set/get either the rate value or the
 * rate index.
 */
static int mwifiex_rate_ioctl_cfg(struct mwifiex_private *priv,
				  struct mwifiex_rate_cfg *rate_cfg)
{
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	int status;
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	if (!rate_cfg)
		return -1;

	if (rate_cfg->action == HostCmd_ACT_GEN_GET)
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		status = mwifiex_rate_ioctl_get_rate_value(priv, rate_cfg);
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	else
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		status = mwifiex_rate_ioctl_set_rate_value(priv, rate_cfg);
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	return status;
}

/*
 * Sends IOCTL request to get the data rate.
 *
 * This function allocates the IOCTL request buffer, fills it
 * with requisite parameters and calls the IOCTL handler.
 */
int mwifiex_drv_get_data_rate(struct mwifiex_private *priv,
			      struct mwifiex_rate_cfg *rate)
{
827
	int ret;
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	memset(rate, 0, sizeof(struct mwifiex_rate_cfg));
	rate->action = HostCmd_ACT_GEN_GET;
831
	ret = mwifiex_rate_ioctl_cfg(priv, rate);
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	if (!ret) {
834
		if (rate->is_rate_auto)
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			rate->rate = mwifiex_index_to_data_rate(priv->tx_rate,
							priv->tx_htinfo);
837
		else
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			rate->rate = priv->data_rate;
	} else {
		ret = -1;
	}

	return ret;
}

/*
 * IOCTL request handler to set tx power configuration.
 *
 * This function prepares the correct firmware command and
 * issues it.
 *
 * For non-auto power mode, all the following power groups are set -
 *      - Modulation class HR/DSSS
 *      - Modulation class OFDM
 *      - Modulation class HTBW20
 *      - Modulation class HTBW40
 */
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int mwifiex_set_tx_power(struct mwifiex_private *priv,
			 struct mwifiex_power_cfg *power_cfg)
860
{
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	int ret;
	struct host_cmd_ds_txpwr_cfg *txp_cfg;
	struct mwifiex_types_power_group *pg_tlv;
	struct mwifiex_power_group *pg;
	u8 *buf;
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	u16 dbm = 0;

	if (!power_cfg->is_power_auto) {
		dbm = (u16) power_cfg->power_level;
		if ((dbm < priv->min_tx_power_level) ||
		    (dbm > priv->max_tx_power_level)) {
			dev_err(priv->adapter->dev, "txpower value %d dBm"
					" is out of range (%d dBm-%d dBm)\n",
					dbm, priv->min_tx_power_level,
					priv->max_tx_power_level);
			return -1;
		}
	}
	buf = kzalloc(MWIFIEX_SIZE_OF_CMD_BUFFER, GFP_KERNEL);
	if (!buf) {
		dev_err(priv->adapter->dev, "%s: failed to alloc cmd buffer\n",
				__func__);
883
		return -ENOMEM;
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	}

	txp_cfg = (struct host_cmd_ds_txpwr_cfg *) buf;
	txp_cfg->action = cpu_to_le16(HostCmd_ACT_GEN_SET);
	if (!power_cfg->is_power_auto) {
		txp_cfg->mode = cpu_to_le32(1);
		pg_tlv = (struct mwifiex_types_power_group *) (buf +
				sizeof(struct host_cmd_ds_txpwr_cfg));
		pg_tlv->type = TLV_TYPE_POWER_GROUP;
		pg_tlv->length = 4 * sizeof(struct mwifiex_power_group);
		pg = (struct mwifiex_power_group *) (buf +
				sizeof(struct host_cmd_ds_txpwr_cfg) +
				sizeof(struct mwifiex_types_power_group));
		/* Power group for modulation class HR/DSSS */
		pg->first_rate_code = 0x00;
		pg->last_rate_code = 0x03;
		pg->modulation_class = MOD_CLASS_HR_DSSS;
		pg->power_step = 0;
		pg->power_min = (s8) dbm;
		pg->power_max = (s8) dbm;
		pg++;
		/* Power group for modulation class OFDM */
		pg->first_rate_code = 0x00;
		pg->last_rate_code = 0x07;
		pg->modulation_class = MOD_CLASS_OFDM;
		pg->power_step = 0;
		pg->power_min = (s8) dbm;
		pg->power_max = (s8) dbm;
		pg++;
		/* Power group for modulation class HTBW20 */
		pg->first_rate_code = 0x00;
		pg->last_rate_code = 0x20;
		pg->modulation_class = MOD_CLASS_HT;
		pg->power_step = 0;
		pg->power_min = (s8) dbm;
		pg->power_max = (s8) dbm;
		pg->ht_bandwidth = HT_BW_20;
		pg++;
		/* Power group for modulation class HTBW40 */
		pg->first_rate_code = 0x00;
		pg->last_rate_code = 0x20;
		pg->modulation_class = MOD_CLASS_HT;
		pg->power_step = 0;
		pg->power_min = (s8) dbm;
		pg->power_max = (s8) dbm;
		pg->ht_bandwidth = HT_BW_40;
	}
931
932
	ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_TXPWR_CFG,
				    HostCmd_ACT_GEN_SET, 0, buf);
933

934
	kfree(buf);
935
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937
938
939
940
941
942
943
	return ret;
}

/*
 * IOCTL request handler to get power save mode.
 *
 * This function prepares the correct firmware command and
 * issues it.
 */
944
int mwifiex_drv_set_power(struct mwifiex_private *priv, u32 *ps_mode)
945
{
946
	int ret;
947
948
949
	struct mwifiex_adapter *adapter = priv->adapter;
	u16 sub_cmd;

950
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960
	if (*ps_mode)
		adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_PSP;
	else
		adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_CAM;
	sub_cmd = (*ps_mode) ? EN_AUTO_PS : DIS_AUTO_PS;
	ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_PS_MODE_ENH,
				    sub_cmd, BITMAP_STA_PS, NULL);
	if ((!ret) && (sub_cmd == DIS_AUTO_PS))
		ret = mwifiex_send_cmd_async(priv,
				HostCmd_CMD_802_11_PS_MODE_ENH, GET_PS,
				0, NULL);
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1024
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1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045

	return ret;
}

/*
 * IOCTL request handler to set/reset WPA IE.
 *
 * The supplied WPA IE is treated as a opaque buffer. Only the first field
 * is checked to determine WPA version. If buffer length is zero, the existing
 * WPA IE is reset.
 */
static int mwifiex_set_wpa_ie_helper(struct mwifiex_private *priv,
				     u8 *ie_data_ptr, u16 ie_len)
{
	if (ie_len) {
		if (ie_len > sizeof(priv->wpa_ie)) {
			dev_err(priv->adapter->dev,
				"failed to copy WPA IE, too big\n");
			return -1;
		}
		memcpy(priv->wpa_ie, ie_data_ptr, ie_len);
		priv->wpa_ie_len = (u8) ie_len;
		dev_dbg(priv->adapter->dev, "cmd: Set Wpa_ie_len=%d IE=%#x\n",
				priv->wpa_ie_len, priv->wpa_ie[0]);

		if (priv->wpa_ie[0] == WLAN_EID_WPA) {
			priv->sec_info.wpa_enabled = true;
		} else if (priv->wpa_ie[0] == WLAN_EID_RSN) {
			priv->sec_info.wpa2_enabled = true;
		} else {
			priv->sec_info.wpa_enabled = false;
			priv->sec_info.wpa2_enabled = false;
		}
	} else {
		memset(priv->wpa_ie, 0, sizeof(priv->wpa_ie));
		priv->wpa_ie_len = 0;
		dev_dbg(priv->adapter->dev, "info: reset wpa_ie_len=%d IE=%#x\n",
			priv->wpa_ie_len, priv->wpa_ie[0]);
		priv->sec_info.wpa_enabled = false;
		priv->sec_info.wpa2_enabled = false;
	}

	return 0;
}

/*
 * IOCTL request handler to set/reset WAPI IE.
 *
 * The supplied WAPI IE is treated as a opaque buffer. Only the first field
 * is checked to internally enable WAPI. If buffer length is zero, the existing
 * WAPI IE is reset.
 */
static int mwifiex_set_wapi_ie(struct mwifiex_private *priv,
			       u8 *ie_data_ptr, u16 ie_len)
{
	if (ie_len) {
		if (ie_len > sizeof(priv->wapi_ie)) {
			dev_dbg(priv->adapter->dev,
				"info: failed to copy WAPI IE, too big\n");
			return -1;
		}
		memcpy(priv->wapi_ie, ie_data_ptr, ie_len);
		priv->wapi_ie_len = ie_len;
		dev_dbg(priv->adapter->dev, "cmd: Set wapi_ie_len=%d IE=%#x\n",
				priv->wapi_ie_len, priv->wapi_ie[0]);

		if (priv->wapi_ie[0] == WLAN_EID_BSS_AC_ACCESS_DELAY)
			priv->sec_info.wapi_enabled = true;
	} else {
		memset(priv->wapi_ie, 0, sizeof(priv->wapi_ie));
		priv->wapi_ie_len = ie_len;
		dev_dbg(priv->adapter->dev,
			"info: Reset wapi_ie_len=%d IE=%#x\n",
		       priv->wapi_ie_len, priv->wapi_ie[0]);
		priv->sec_info.wapi_enabled = false;
	}
	return 0;
}

/*
 * IOCTL request handler to set WAPI key.
 *
 * This function prepares the correct firmware command and
 * issues it.
 */
1046
static int mwifiex_sec_ioctl_set_wapi_key(struct mwifiex_private *priv,
1047
1048
1049
			       struct mwifiex_ds_encrypt_key *encrypt_key)
{

1050
	return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
1051
1052
				    HostCmd_ACT_GEN_SET, KEY_INFO_ENABLED,
				    encrypt_key);
1053
1054
1055
1056
1057
1058
1059
1060
}

/*
 * IOCTL request handler to set WEP network key.
 *
 * This function prepares the correct firmware command and
 * issues it, after validation checks.
 */
1061
static int mwifiex_sec_ioctl_set_wep_key(struct mwifiex_private *priv,
1062
1063
			      struct mwifiex_ds_encrypt_key *encrypt_key)
{
1064
1065
	int ret;
	struct mwifiex_wep_key *wep_key;
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
	int index;

	if (priv->wep_key_curr_index >= NUM_WEP_KEYS)
		priv->wep_key_curr_index = 0;
	wep_key = &priv->wep_key[priv->wep_key_curr_index];
	index = encrypt_key->key_index;
	if (encrypt_key->key_disable) {
		priv->sec_info.wep_status = MWIFIEX_802_11_WEP_DISABLED;
	} else if (!encrypt_key->key_len) {
		/* Copy the required key as the current key */
		wep_key = &priv->wep_key[index];
		if (!wep_key->key_length) {
1078
			dev_err(priv->adapter->dev,
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
				"key not set, so cannot enable it\n");
			return -1;
		}
		priv->wep_key_curr_index = (u16) index;
		priv->sec_info.wep_status = MWIFIEX_802_11_WEP_ENABLED;
	} else {
		wep_key = &priv->wep_key[index];
		memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
		/* Copy the key in the driver */
		memcpy(wep_key->key_material,
		       encrypt_key->key_material,
		       encrypt_key->key_len);
		wep_key->key_index = index;
		wep_key->key_length = encrypt_key->key_len;
		priv->sec_info.wep_status = MWIFIEX_802_11_WEP_ENABLED;
	}
	if (wep_key->key_length) {
		/* Send request to firmware */
1097
1098
1099
		ret = mwifiex_send_cmd_async(priv,
					     HostCmd_CMD_802_11_KEY_MATERIAL,
					     HostCmd_ACT_GEN_SET, 0, NULL);
1100
1101
1102
1103
1104
1105
1106
1107
		if (ret)
			return ret;
	}
	if (priv->sec_info.wep_status == MWIFIEX_802_11_WEP_ENABLED)
		priv->curr_pkt_filter |= HostCmd_ACT_MAC_WEP_ENABLE;
	else
		priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_WEP_ENABLE;

1108
1109
1110
	ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_MAC_CONTROL,
				    HostCmd_ACT_GEN_SET, 0,
				    &priv->curr_pkt_filter);
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124

	return ret;
}

/*
 * IOCTL request handler to set WPA key.
 *
 * This function prepares the correct firmware command and
 * issues it, after validation checks.
 *
 * Current driver only supports key length of up to 32 bytes.
 *
 * This function can also be used to disable a currently set key.
 */
1125
static int mwifiex_sec_ioctl_set_wpa_key(struct mwifiex_private *priv,
1126
1127
			      struct mwifiex_ds_encrypt_key *encrypt_key)
{
1128
	int ret;
1129
1130
1131
1132
	u8 remove_key = false;
	struct host_cmd_ds_802_11_key_material *ibss_key;

	/* Current driver only supports key length of up to 32 bytes */
1133
	if (encrypt_key->key_len > WLAN_MAX_KEY_LEN) {
1134
		dev_err(priv->adapter->dev, "key length too long\n");
1135
1136
1137
		return -1;
	}

1138
	if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
1139
1140
1141
1142
1143
1144
		/*
		 * IBSS/WPA-None uses only one key (Group) for both receiving
		 * and sending unicast and multicast packets.
		 */
		/* Send the key as PTK to firmware */
		encrypt_key->key_index = MWIFIEX_KEY_INDEX_UNICAST;
1145
1146
1147
1148
		ret = mwifiex_send_cmd_async(priv,
					HostCmd_CMD_802_11_KEY_MATERIAL,
					HostCmd_ACT_GEN_SET, KEY_INFO_ENABLED,
					encrypt_key);
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
		if (ret)
			return ret;

		ibss_key = &priv->aes_key;
		memset(ibss_key, 0,
		       sizeof(struct host_cmd_ds_802_11_key_material));
		/* Copy the key in the driver */
		memcpy(ibss_key->key_param_set.key, encrypt_key->key_material,
		       encrypt_key->key_len);
		memcpy(&ibss_key->key_param_set.key_len, &encrypt_key->key_len,
		       sizeof(ibss_key->key_param_set.key_len));
		ibss_key->key_param_set.key_type_id
			= cpu_to_le16(KEY_TYPE_ID_TKIP);
1162
		ibss_key->key_param_set.key_info = cpu_to_le16(KEY_ENABLED);
1163
1164
1165
1166
1167
1168
1169
1170
1171

		/* Send the key as GTK to firmware */
		encrypt_key->key_index = ~MWIFIEX_KEY_INDEX_UNICAST;
	}

	if (!encrypt_key->key_index)
		encrypt_key->key_index = MWIFIEX_KEY_INDEX_UNICAST;

	if (remove_key)
1172
1173
1174
1175
		ret = mwifiex_send_cmd_sync(priv,
				       HostCmd_CMD_802_11_KEY_MATERIAL,
				       HostCmd_ACT_GEN_SET, !(KEY_INFO_ENABLED),
				       encrypt_key);
1176
	else
1177
1178
1179
1180
		ret = mwifiex_send_cmd_sync(priv,
					HostCmd_CMD_802_11_KEY_MATERIAL,
					HostCmd_ACT_GEN_SET, KEY_INFO_ENABLED,
					encrypt_key);
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194

	return ret;
}

/*
 * IOCTL request handler to set/get network keys.
 *
 * This is a generic key handling function which supports WEP, WPA
 * and WAPI.
 */
static int
mwifiex_sec_ioctl_encrypt_key(struct mwifiex_private *priv,
			      struct mwifiex_ds_encrypt_key *encrypt_key)
{
1195
	int status;
1196
1197

	if (encrypt_key->is_wapi_key)
1198
		status = mwifiex_sec_ioctl_set_wapi_key(priv, encrypt_key);
1199
	else if (encrypt_key->key_len > WLAN_KEY_LEN_WEP104)
1200
		status = mwifiex_sec_ioctl_set_wpa_key(priv, encrypt_key);
1201
	else
1202
		status = mwifiex_sec_ioctl_set_wep_key(priv, encrypt_key);
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
	return status;
}

/*
 * This function returns the driver version.
 */
int
mwifiex_drv_get_driver_version(struct mwifiex_adapter *adapter, char *version,
			       int max_len)
{
	union {
		u32 l;
		u8 c[4];
	} ver;
	char fw_ver[32];

	ver.l = adapter->fw_release_number;
	sprintf(fw_ver, "%u.%u.%u.p%u", ver.c[2], ver.c[1], ver.c[0], ver.c[3]);

	snprintf(version, max_len, driver_version, fw_ver);

	dev_dbg(adapter->dev, "info: MWIFIEX VERSION: %s\n", version);

	return 0;
}

/*
 * Sends IOCTL request to get signal information.
 *
 * This function allocates the IOCTL request buffer, fills it
 * with requisite parameters and calls the IOCTL handler.
 */
1235
int mwifiex_get_signal_info(struct mwifiex_private *priv,
1236
1237
			    struct mwifiex_ds_get_signal *signal)
{
1238
	int status;
1239

1240
	signal->selector = ALL_RSSI_INFO_MASK;
1241

1242
1243
1244
1245
1246
1247
1248
1249
1250
	/* Signal info can be obtained only if connected */
	if (!priv->media_connected) {
		dev_dbg(priv->adapter->dev,
			"info: Can not get signal in disconnected state\n");
		return -1;
	}

	status = mwifiex_send_cmd_sync(priv, HostCmd_CMD_RSSI_INFO,
				       HostCmd_ACT_GEN_GET, 0, signal);
1251
1252

	if (!status) {
1253
		if (signal->selector & BCN_RSSI_AVG_MASK)
1254
			priv->qual_level = signal->bcn_rssi_avg;
1255
		if (signal->selector & BCN_NF_AVG_MASK)
1256
			priv->qual_noise = signal->bcn_nf_avg;
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
	}

	return status;
}

/*
 * Sends IOCTL request to set encoding parameters.
 *
 * This function allocates the IOCTL request buffer, fills it
 * with requisite parameters and calls the IOCTL handler.
 */
int mwifiex_set_encode(struct mwifiex_private *priv, const u8 *key,
			int key_len, u8 key_index, int disable)
{
	struct mwifiex_ds_encrypt_key encrypt_key;

	memset(&encrypt_key, 0, sizeof(struct mwifiex_ds_encrypt_key));
	encrypt_key.key_len = key_len;
	if (!disable) {
		encrypt_key.key_index = key_index;
		if (key_len)
			memcpy(encrypt_key.key_material, key, key_len);
	} else {
		encrypt_key.key_disable = true;
	}

1283
	return mwifiex_sec_ioctl_encrypt_key(priv, &encrypt_key);
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
}

/*
 * Sends IOCTL request to get extended version.
 *
 * This function allocates the IOCTL request buffer, fills it
 * with requisite parameters and calls the IOCTL handler.
 */
int
mwifiex_get_ver_ext(struct mwifiex_private *priv)
{
	struct mwifiex_ver_ext ver_ext;

	memset(&ver_ext, 0, sizeof(struct host_cmd_ds_version_ext));
1298
1299
1300
	if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_VERSION_EXT,
				    HostCmd_ACT_GEN_GET, 0, &ver_ext))
		return -1;
1301

1302
	return 0;
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
}

/*
 * Sends IOCTL request to get statistics information.
 *
 * This function allocates the IOCTL request buffer, fills it
 * with requisite parameters and calls the IOCTL handler.
 */
int
mwifiex_get_stats_info(struct mwifiex_private *priv,
		       struct mwifiex_ds_get_stats *log)
{
1315
	return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_GET_LOG,
1316
				    HostCmd_ACT_GEN_GET, 0, log);
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
}

/*
 * IOCTL request handler to read/write register.
 *
 * This function prepares the correct firmware command and
 * issues it.
 *
 * Access to the following registers are supported -
 *      - MAC
 *      - BBP
 *      - RF
 *      - PMIC
 *      - CAU
 */
static int mwifiex_reg_mem_ioctl_reg_rw(struct mwifiex_private *priv,
					struct mwifiex_ds_reg_rw *reg_rw,
					u16 action)
{
	u16 cmd_no;

	switch (le32_to_cpu(reg_rw->type)) {
	case MWIFIEX_REG_MAC:
		cmd_no = HostCmd_CMD_MAC_REG_ACCESS;
		break;
	case MWIFIEX_REG_BBP:
		cmd_no = HostCmd_CMD_BBP_REG_ACCESS;
		break;
	case MWIFIEX_REG_RF:
		cmd_no = HostCmd_CMD_RF_REG_ACCESS;
		break;
	case MWIFIEX_REG_PMIC:
		cmd_no = HostCmd_CMD_PMIC_REG_ACCESS;
		break;
	case MWIFIEX_REG_CAU:
		cmd_no = HostCmd_CMD_CAU_REG_ACCESS;
		break;
	default:
		return -1;
	}

1358
	return mwifiex_send_cmd_sync(priv, cmd_no, action, 0, reg_rw);
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377

}

/*
 * Sends IOCTL request to write to a register.
 *
 * This function allocates the IOCTL request buffer, fills it
 * with requisite parameters and calls the IOCTL handler.
 */
int
mwifiex_reg_write(struct mwifiex_private *priv, u32 reg_type,
		  u32 reg_offset, u32 reg_value)
{
	struct mwifiex_ds_reg_rw reg_rw;

	reg_rw.type = cpu_to_le32(reg_type);
	reg_rw.offset = cpu_to_le32(reg_offset);
	reg_rw.value = cpu_to_le32(reg_value);

1378
	return mwifiex_reg_mem_ioctl_reg_rw(priv, &reg_rw, HostCmd_ACT_GEN_SET);
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
}

/*
 * Sends IOCTL request to read from a register.
 *
 * This function allocates the IOCTL request buffer, fills it
 * with requisite parameters and calls the IOCTL handler.
 */
int
mwifiex_reg_read(struct mwifiex_private *priv, u32 reg_type,
		 u32 reg_offset, u32 *value)
{
1391
	int ret;
1392
1393
1394
1395
	struct mwifiex_ds_reg_rw reg_rw;

	reg_rw.type = cpu_to_le32(reg_type);
	reg_rw.offset = cpu_to_le32(reg_offset);
1396
	ret = mwifiex_reg_mem_ioctl_reg_rw(priv, &reg_rw, HostCmd_ACT_GEN_GET);
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416

	if (ret)
		goto done;

	*value = le32_to_cpu(reg_rw.value);

done:
	return ret;
}

/*
 * Sends IOCTL request to read from EEPROM.
 *
 * This function allocates the IOCTL request buffer, fills it
 * with requisite parameters and calls the IOCTL handler.
 */
int
mwifiex_eeprom_read(struct mwifiex_private *priv, u16 offset, u16 bytes,
		    u8 *value)
{
1417
	int ret;
1418
1419
1420
1421
1422
	struct mwifiex_ds_read_eeprom rd_eeprom;

	rd_eeprom.offset = cpu_to_le16((u16) offset);
	rd_eeprom.byte_count = cpu_to_le16((u16) bytes);

1423
1424
1425
	/* Send request to firmware */
	ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_EEPROM_ACCESS,
				    HostCmd_ACT_GEN_GET, 0, &rd_eeprom);
1426

1427
1428
	if (!ret)
		memcpy(value, rd_eeprom.value, MAX_EEPROM_DATA);
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
	return ret;
}

/*
 * This function sets a generic IE. In addition to generic IE, it can
 * also handle WPA, WPA2 and WAPI IEs.
 */
static int
mwifiex_set_gen_ie_helper(struct mwifiex_private *priv, u8 *ie_data_ptr,
			  u16 ie_len)
{
	int ret = 0;
	struct ieee_types_vendor_header *pvendor_ie;
	const u8 wpa_oui[] = { 0x00, 0x50, 0xf2, 0x01 };
	const u8 wps_oui[] = { 0x00, 0x50, 0xf2, 0x04 };

	/* If the passed length is zero, reset the buffer */
	if (!ie_len) {
		priv->gen_ie_buf_len = 0;
		priv->wps.session_enable = false;

		return 0;
	} else if (!ie_data_ptr) {
		return -1;
	}
	pvendor_ie = (struct ieee_types_vendor_header *) ie_data_ptr;
	/* Test to see if it is a WPA IE, if not, then it is a gen IE */
	if (((pvendor_ie->element_id == WLAN_EID_WPA)
	     && (!memcmp(pvendor_ie->oui, wpa_oui, sizeof(wpa_oui))))
			|| (pvendor_ie->element_id == WLAN_EID_RSN)) {

		/* IE is a WPA/WPA2 IE so call set_wpa function */
		ret = mwifiex_set_wpa_ie_helper(priv, ie_data_ptr, ie_len);
		priv->wps.session_enable = false;

		return ret;
	} else if (pvendor_ie->element_id == WLAN_EID_BSS_AC_ACCESS_DELAY) {
		/* IE is a WAPI IE so call set_wapi function */
		ret = mwifiex_set_wapi_ie(priv, ie_data_ptr, ie_len);

		return ret;
	}
	/*
	 * Verify that the passed length is not larger than the
	 * available space remaining in the buffer
	 */
	if (ie_len < (sizeof(priv->gen_ie_buf) - priv->gen_ie_buf_len)) {

		/* Test to see if it is a WPS IE, if so, enable
		 * wps session flag
		 */
		pvendor_ie = (struct ieee_types_vendor_header *) ie_data_ptr;
		if ((pvendor_ie->element_id == WLAN_EID_VENDOR_SPECIFIC)
				&& (!memcmp(pvendor_ie->oui, wps_oui,
						sizeof(wps_oui)))) {
			priv->wps.session_enable = true;
			dev_dbg(priv->adapter->dev,
				"info: WPS Session Enabled.\n");
		}

		/* Append the passed data to the end of the
		   genIeBuffer */
		memcpy(priv->gen_ie_buf + priv->gen_ie_buf_len, ie_data_ptr,
									ie_len);
		/* Increment the stored buffer length by the
		   size passed */
		priv->gen_ie_buf_len += ie_len;
	} else {
		/* Passed data does not fit in the remaining
		   buffer space */
		ret = -1;
	}

	/* Return 0, or -1 for error case */
	return ret;
}

/*
 * IOCTL request handler to set/get generic IE.
 *
 * In addition to various generic IEs, this function can also be
 * used to set the ARP filter.
 */
static int mwifiex_misc_ioctl_gen_ie(struct mwifiex_private *priv,
				     struct mwifiex_ds_misc_gen_ie *gen_ie,
				     u16 action)
{
	struct mwifiex_adapter *adapter = priv->adapter;

	switch (gen_ie->type) {
	case MWIFIEX_IE_TYPE_GEN_IE:
		if (action == HostCmd_ACT_GEN_GET) {
			gen_ie->len = priv->wpa_ie_len;
			memcpy(gen_ie->ie_data, priv->wpa_ie, gen_ie->len);
		} else {
			mwifiex_set_gen_ie_helper(priv, gen_ie->ie_data,
						  (u16) gen_ie->len);
		}
		break;
	case MWIFIEX_IE_TYPE_ARP_FILTER:
		memset(adapter->arp_filter, 0, sizeof(adapter->arp_filter));
		if (gen_ie->len > ARP_FILTER_MAX_BUF_SIZE) {
			adapter->arp_filter_size = 0;
			dev_err(adapter->dev, "invalid ARP filter size\n");
			return -1;
		} else {
			memcpy(adapter->arp_filter, gen_ie->ie_data,
								gen_ie->len);
			adapter->arp_filter_size = gen_ie->len;
		}
		break;
	default:
		dev_err(adapter->dev, "invalid IE type\n");
		return -1;
	}
	return 0;
}

/*
 * Sends IOCTL request to set a generic IE.
 *
 * This function allocates the IOCTL request buffer, fills it
 * with requisite parameters and calls the IOCTL handler.
 */
int
mwifiex_set_gen_ie(struct mwifiex_private *priv, u8 *ie, int ie_len)
{
	struct mwifiex_ds_misc_gen_ie gen_ie;

1558
	if (ie_len > IEEE_MAX_IE_SIZE)
1559
1560
1561
1562
1563
		return -EFAULT;

	gen_ie.type = MWIFIEX_IE_TYPE_GEN_IE;
	gen_ie.len = ie_len;
	memcpy(gen_ie.ie_data, ie, ie_len);
1564
	if (mwifiex_misc_ioctl_gen_ie(priv, &gen_ie, HostCmd_ACT_GEN_SET))
1565
1566
1567
1568
		return -EFAULT;

	return 0;
}