sta_ioctl.c 41 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;
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	struct cmd_ctrl_node *cmd_queued;
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	if (!adapter->cmd_queued)
		return 0;

	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));
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	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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	status = adapter->cmd_wait_q.status;
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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,
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		      struct cfg80211_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))
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			mwifiex_stop_net_dev_queue(priv->netdev, adapter);
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		if (netif_carrier_ok(priv->netdev))
			netif_carrier_off(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);
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		/* If auth type is auto and association fails using open mode,
		 * try to connect using shared mode */
		if (ret == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG &&
		    priv->sec_info.is_authtype_auto &&
		    priv->sec_info.wep_enabled) {
			priv->sec_info.authentication_mode =
						NL80211_AUTHTYPE_SHARED_KEY;
			ret = mwifiex_associate(priv, bss_desc);
		}

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		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, &bss_desc->ssid))) {
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			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))
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			mwifiex_stop_net_dev_queue(priv->netdev, adapter);
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		if (netif_carrier_ok(priv->netdev))
			netif_carrier_off(priv->netdev);
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		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;
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			} else if (adapter->hs_cfg.conditions
				   == cpu_to_le32(HOST_SLEEP_CFG_CANCEL)) {
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				/* 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 =
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						cpu_to_le32(hs_cfg->conditions);
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			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;

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

	if (mwifiex_set_hs_params(mwifiex_get_priv(adapter,
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						   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,
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				 adapter->hs_activate_wait_q_woken);
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	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;

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	memcpy(&info->ssid, &bss_desc->ssid, sizeof(struct cfg80211_ssid));
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	memcpy(&info->bssid, &bss_desc->mac_address, ETH_ALEN);

	info->bss_chan = bss_desc->channel;

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	memcpy(info->country_code, priv->country_code,
	       IEEE80211_COUNTRY_STRING_LEN);
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	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;

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	if (priv->sec_info.wep_enabled)
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		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 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)
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			cfp = mwifiex_get_cfp(priv, 0, (u16) chan->channel, 0);
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		if (!cfp) {
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			cfp = mwifiex_get_cfp(priv, BAND_A,
					      (u16) chan->channel, 0);
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			if (cfp) {
				if (adapter->adhoc_11n_enabled)
					adapter->adhoc_start_band = BAND_A
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								    | BAND_AN;
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				else
					adapter->adhoc_start_band = BAND_A;
			}
		}
	} else {
		if (chan->freq <= MAX_FREQUENCY_BAND_BG)
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			cfp = mwifiex_get_cfp(priv, 0, 0, chan->freq);
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		if (!cfp) {
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			cfp = mwifiex_get_cfp(priv, BAND_A, 0, chan->freq);
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			if (cfp) {
				if (adapter->adhoc_11n_enabled)
					adapter->adhoc_start_band = BAND_A
551
								    | BAND_AN;
552
553
554
555
556
557
558
559
560
561
562
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564
565
566
567
568
569
570
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579
				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;
580
			return 0;
581
582
583
584
585
		}
	} else {
		priv->adhoc_channel = (u8) *channel;
	}

586
	return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_RF_CHANNEL,
587
				     action, 0, channel);
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
}

/*
 * 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
608
mwifiex_drv_change_adhoc_chan(struct mwifiex_private *priv, u16 channel)
609
{
610
	int ret;
611
612
613
	struct mwifiex_bss_info bss_info;
	struct mwifiex_ssid_bssid ssid_bssid;
	u16 curr_chan = 0;
614
615
	struct cfg80211_bss *bss = NULL;
	struct ieee80211_channel *chan;
616
	enum ieee80211_band band;
617
618
619
620
621
622
623
624

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

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

	/* Get current channel */
625
626
	ret = mwifiex_bss_ioctl_ibss_channel(priv, HostCmd_ACT_GEN_GET,
					     &curr_chan);
627
628
629
630
631
632

	if (curr_chan == channel) {
		ret = 0;
		goto done;
	}
	dev_dbg(priv->adapter->dev, "cmd: updating channel from %d to %d\n",
633
		curr_chan, channel);
634
635
636
637
638
639
640
641

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

	/* Do disonnect */
	memset(&ssid_bssid, 0, ETH_ALEN);
642
	ret = mwifiex_deauthenticate(priv, ssid_bssid.bssid);
643

644
	ret = mwifiex_bss_ioctl_ibss_channel(priv, HostCmd_ACT_GEN_SET,
645
					     &channel);
646
647

	/* Do specific SSID scanning */
648
	if (mwifiex_request_scan(priv, &bss_info.ssid)) {
649
650
651
652
		ret = -1;
		goto done;
	}

653
	band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
654
	chan = __ieee80211_get_channel(priv->wdev->wiphy,
655
656
				       ieee80211_channel_to_frequency(channel,
								      band));
657
658
659
660
661
662
663

	/* 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",
664
			   bss_info.bssid);
665
666

	ret = mwifiex_bss_start(priv, bss, &bss_info.ssid);
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
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;
683
684
	return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_TX_RATE_QUERY,
				     HostCmd_ACT_GEN_GET, 0, NULL);
685
686
687
688
689
690
691
692
693
694
695
696
697
698
}

/*
 * 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];
699
700
	u8 *rate;
	int rate_index, ret;
701
	u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
702
	u32 i;
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
	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;
		}
725
		if ((i == MWIFIEX_SUPPORTED_RATES) || !rate[i]) {
726
727
728
729
730
731
			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));

732
		rate_index = mwifiex_data_rate_to_index(rate_cfg->rate);
733
734
735
736
737
738
739
740
741
742
743
744
745
746

		/* 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);
		}
	}

747
748
	ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_TX_RATE_CFG,
				    HostCmd_ACT_GEN_SET, 0, bitmap_rates);
749
750
751
752
753
754
755
756
757
758
759
760
761

	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)
{
762
	int status;
763
764
765
766
767

	if (!rate_cfg)
		return -1;

	if (rate_cfg->action == HostCmd_ACT_GEN_GET)
768
		status = mwifiex_rate_ioctl_get_rate_value(priv, rate_cfg);
769
	else
770
		status = mwifiex_rate_ioctl_set_rate_value(priv, rate_cfg);
771
772
773
774
775
776
777
778
779
780
781
782
783

	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)
{
784
	int ret;
785
786
787

	memset(rate, 0, sizeof(struct mwifiex_rate_cfg));
	rate->action = HostCmd_ACT_GEN_GET;
788
	ret = mwifiex_rate_ioctl_cfg(priv, rate);
789
790

	if (!ret) {
791
		if (rate->is_rate_auto)
792
			rate->rate = mwifiex_index_to_data_rate(priv,
793
794
795
								priv->tx_rate,
								priv->tx_htinfo
								);
796
		else
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
			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
 */
817
818
int mwifiex_set_tx_power(struct mwifiex_private *priv,
			 struct mwifiex_power_cfg *power_cfg)
819
{
820
821
822
823
824
	int ret;
	struct host_cmd_ds_txpwr_cfg *txp_cfg;
	struct mwifiex_types_power_group *pg_tlv;
	struct mwifiex_power_group *pg;
	u8 *buf;
825
826
827
828
829
830
831
	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"
832
833
834
				" is out of range (%d dBm-%d dBm)\n",
				dbm, priv->min_tx_power_level,
				priv->max_tx_power_level);
835
836
837
838
839
840
			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",
841
			__func__);
842
		return -ENOMEM;
843
844
845
846
847
848
	}

	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);
849
850
		pg_tlv = (struct mwifiex_types_power_group *)
			 (buf + sizeof(struct host_cmd_ds_txpwr_cfg));
851
852
		pg_tlv->type = TLV_TYPE_POWER_GROUP;
		pg_tlv->length = 4 * sizeof(struct mwifiex_power_group);
853
854
855
		pg = (struct mwifiex_power_group *)
		     (buf + sizeof(struct host_cmd_ds_txpwr_cfg)
		      + sizeof(struct mwifiex_types_power_group));
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
		/* 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;
	}
890
891
	ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_TXPWR_CFG,
				    HostCmd_ACT_GEN_SET, 0, buf);
892

893
	kfree(buf);
894
895
896
897
898
899
900
901
902
	return ret;
}

/*
 * IOCTL request handler to get power save mode.
 *
 * This function prepares the correct firmware command and
 * issues it.
 */
903
int mwifiex_drv_set_power(struct mwifiex_private *priv, u32 *ps_mode)
904
{
905
	int ret;
906
907
908
	struct mwifiex_adapter *adapter = priv->adapter;
	u16 sub_cmd;

909
910
911
912
913
914
915
916
917
	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,
918
919
					     HostCmd_CMD_802_11_PS_MODE_ENH,
					     GET_PS, 0, NULL);
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942

	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",
943
			priv->wpa_ie_len, priv->wpa_ie[0]);
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983

		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",
984
			priv->wapi_ie_len, priv->wapi_ie[0]);
985
986
987
988
989
990
991
992
993
994
995
996
997
998

		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;
}

999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
/*
 * IOCTL request handler to set/reset WPS IE.
 *
 * The supplied WPS IE is treated as a opaque buffer. Only the first field
 * is checked to internally enable WPS. If buffer length is zero, the existing
 * WPS IE is reset.
 */
static int mwifiex_set_wps_ie(struct mwifiex_private *priv,
			       u8 *ie_data_ptr, u16 ie_len)
{
	if (ie_len) {
		priv->wps_ie = kzalloc(MWIFIEX_MAX_VSIE_LEN, GFP_KERNEL);
		if (!priv->wps_ie)
			return -ENOMEM;
		if (ie_len > sizeof(priv->wps_ie)) {
			dev_dbg(priv->adapter->dev,
				"info: failed to copy WPS IE, too big\n");
			kfree(priv->wps_ie);
			return -1;
		}
		memcpy(priv->wps_ie, ie_data_ptr, ie_len);
		priv->wps_ie_len = ie_len;
		dev_dbg(priv->adapter->dev, "cmd: Set wps_ie_len=%d IE=%#x\n",
			priv->wps_ie_len, priv->wps_ie[0]);
	} else {
		kfree(priv->wps_ie);
		priv->wps_ie_len = ie_len;
		dev_dbg(priv->adapter->dev,
			"info: Reset wps_ie_len=%d\n", priv->wps_ie_len);
	}
	return 0;
}

1032
1033
1034
1035
1036
1037
/*
 * IOCTL request handler to set WAPI key.
 *
 * This function prepares the correct firmware command and
 * issues it.
 */
1038
static int mwifiex_sec_ioctl_set_wapi_key(struct mwifiex_private *priv,
1039
1040
1041
			       struct mwifiex_ds_encrypt_key *encrypt_key)
{

1042
	return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
1043
1044
				     HostCmd_ACT_GEN_SET, KEY_INFO_ENABLED,
				     encrypt_key);
1045
1046
1047
1048
1049
1050
1051
1052
}

/*
 * IOCTL request handler to set WEP network key.
 *
 * This function prepares the correct firmware command and
 * issues it, after validation checks.
 */
1053
static int mwifiex_sec_ioctl_set_wep_key(struct mwifiex_private *priv,
1054
1055
			      struct mwifiex_ds_encrypt_key *encrypt_key)
{
1056
1057
	int ret;
	struct mwifiex_wep_key *wep_key;
1058
1059
1060
1061
1062
1063
1064
	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) {
1065
		priv->sec_info.wep_enabled = 0;
1066
1067
1068
1069
	} 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) {
1070
			dev_err(priv->adapter->dev,
1071
1072
1073
1074
				"key not set, so cannot enable it\n");
			return -1;
		}
		priv->wep_key_curr_index = (u16) index;
1075
		priv->sec_info.wep_enabled = 1;
1076
1077
1078
1079
1080
1081
1082
1083
1084
	} 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;
1085
		priv->sec_info.wep_enabled = 1;
1086
1087
1088
	}
	if (wep_key->key_length) {
		/* Send request to firmware */
1089
1090
1091
		ret = mwifiex_send_cmd_async(priv,
					     HostCmd_CMD_802_11_KEY_MATERIAL,
					     HostCmd_ACT_GEN_SET, 0, NULL);
1092
1093
1094
		if (ret)
			return ret;
	}
1095
	if (priv->sec_info.wep_enabled)
1096
1097
1098
1099
		priv->curr_pkt_filter |= HostCmd_ACT_MAC_WEP_ENABLE;
	else
		priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_WEP_ENABLE;

1100
1101
1102
	ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_MAC_CONTROL,
				    HostCmd_ACT_GEN_SET, 0,
				    &priv->curr_pkt_filter);
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116

	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.
 */
1117
static int mwifiex_sec_ioctl_set_wpa_key(struct mwifiex_private *priv,
1118
1119
			      struct mwifiex_ds_encrypt_key *encrypt_key)
{
1120
	int ret;
1121
1122
1123
1124
	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 */
1125
	if (encrypt_key->key_len > WLAN_MAX_KEY_LEN) {
1126
		dev_err(priv->adapter->dev, "key length too long\n");
1127
1128
1129
		return -1;
	}

1130
	if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
1131
1132
1133
1134
1135
1136
		/*
		 * 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;
1137
		ret = mwifiex_send_cmd_async(priv,
1138
1139
1140
					     HostCmd_CMD_802_11_KEY_MATERIAL,
					     HostCmd_ACT_GEN_SET,
					     KEY_INFO_ENABLED, encrypt_key);
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
		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);
1154
		ibss_key->key_param_set.key_info = cpu_to_le16(KEY_ENABLED);
1155
1156
1157
1158
1159
1160
1161
1162
1163

		/* 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)
1164
		ret = mwifiex_send_cmd_sync(priv,
1165
1166
1167
					    HostCmd_CMD_802_11_KEY_MATERIAL,
					    HostCmd_ACT_GEN_SET,
					    !KEY_INFO_ENABLED, encrypt_key);
1168
	else
1169
		ret = mwifiex_send_cmd_sync(priv,
1170
1171
1172
					    HostCmd_CMD_802_11_KEY_MATERIAL,
					    HostCmd_ACT_GEN_SET,
					    KEY_INFO_ENABLED, encrypt_key);
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186

	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)
{
1187
	int status;
1188
1189

	if (encrypt_key->is_wapi_key)
1190
		status = mwifiex_sec_ioctl_set_wapi_key(priv, encrypt_key);
1191
	else if (encrypt_key->key_len > WLAN_KEY_LEN_WEP104)
1192
		status = mwifiex_sec_ioctl_set_wpa_key(priv, encrypt_key);
1193
	else
1194
		status = mwifiex_sec_ioctl_set_wep_key(priv, encrypt_key);
1195
1196
1197
1198
1199
1200
1201
1202
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
1235
1236
1237
1238
1239
1240
1241
	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 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;
	}

1242
	return mwifiex_sec_ioctl_encrypt_key(priv, &encrypt_key);
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
}

/*
 * 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));
1257
	if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_VERSION_EXT,
1258
				  HostCmd_ACT_GEN_GET, 0, &ver_ext))
1259
		return -1;
1260

1261
	return 0;
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
}

/*
 * 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)
{
1274
	return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_GET_LOG,
1275
				     HostCmd_ACT_GEN_GET, 0, log);
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
}

/*
 * 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;
	}

1317
	return mwifiex_send_cmd_sync(priv, cmd_no, action, 0, reg_rw);
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336

}

/*
 * 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);

1337
	return mwifiex_reg_mem_ioctl_reg_rw(priv, &reg_rw, HostCmd_ACT_GEN_SET);
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
}

/*
 * 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)
{
1350
	int ret;
1351
1352
1353
1354
	struct mwifiex_ds_reg_rw reg_rw;

	reg_rw.type = cpu_to_le32(reg_type);
	reg_rw.offset = cpu_to_le32(reg_offset);
1355
	ret = mwifiex_reg_mem_ioctl_reg_rw(priv, &reg_rw, HostCmd_ACT_GEN_GET);
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375

	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)
{
1376
	int ret;
1377
1378
1379
1380
1381
	struct mwifiex_ds_read_eeprom rd_eeprom;

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

1382
1383
1384
	/* Send request to firmware */
	ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_EEPROM_ACCESS,
				    HostCmd_ACT_GEN_GET, 0, &rd_eeprom);
1385

1386
1387
	if (!ret)
		memcpy(value, rd_eeprom.value, MAX_EEPROM_DATA);
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
	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 */
1415
1416
1417
	if (((pvendor_ie->element_id == WLAN_EID_WPA) &&
	     (!memcmp(pvendor_ie->oui, wpa_oui, sizeof(wpa_oui)))) ||
	    (pvendor_ie->element_id == WLAN_EID_RSN)) {
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439

		/* 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;
1440
1441
		if ((pvendor_ie->element_id == WLAN_EID_VENDOR_SPECIFIC) &&
		    (!memcmp(pvendor_ie->oui, wps_oui, sizeof(wps_oui)))) {
1442
1443
1444
			priv->wps.session_enable = true;
			dev_dbg(priv->adapter->dev,
				"info: WPS Session Enabled.\n");
1445
			ret = mwifiex_set_wps_ie(priv, ie_data_ptr, ie_len);
1446
1447
1448
1449
1450
		}

		/* Append the passed data to the end of the
		   genIeBuffer */
		memcpy(priv->gen_ie_buf + priv->gen_ie_buf_len, ie_data_ptr,
1451
		       ie_len);
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
		/* 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,
1495
			       gen_ie->len);
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
			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;

1517
	if (ie_len > IEEE_MAX_IE_SIZE)
1518
1519
1520
1521
1522
		return -EFAULT;

	gen_ie.type = MWIFIEX_IE_TYPE_GEN_IE;
	gen_ie.len = ie_len;
	memcpy(gen_ie.ie_data, ie, ie_len);
1523
	if (mwifiex_misc_ioctl_gen_ie(priv, &gen_ie, HostCmd_ACT_GEN_SET))
1524
1525
1526
1527
		return -EFAULT;

	return 0;
}