cfg80211.c 83.0 KB
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/*
 * Marvell Wireless LAN device driver: CFG80211
 *
 * 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 "cfg80211.h"
#include "main.h"

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static char *reg_alpha2;
module_param(reg_alpha2, charp, 0);

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static const struct ieee80211_iface_limit mwifiex_ap_sta_limits[] = {
	{
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		.max = 2, .types = BIT(NL80211_IFTYPE_STATION) |
				   BIT(NL80211_IFTYPE_P2P_GO) |
				   BIT(NL80211_IFTYPE_P2P_CLIENT),
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	},
	{
		.max = 1, .types = BIT(NL80211_IFTYPE_AP),
	},
};

static const struct ieee80211_iface_combination mwifiex_iface_comb_ap_sta = {
	.limits = mwifiex_ap_sta_limits,
	.num_different_channels = 1,
	.n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
	.max_interfaces = MWIFIEX_MAX_BSS_NUM,
	.beacon_int_infra_match = true,
};

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static const struct ieee80211_regdomain mwifiex_world_regdom_custom = {
	.n_reg_rules = 7,
	.alpha2 =  "99",
	.reg_rules = {
		/* Channel 1 - 11 */
		REG_RULE(2412-10, 2462+10, 40, 3, 20, 0),
		/* Channel 12 - 13 */
		REG_RULE(2467-10, 2472+10, 20, 3, 20,
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			 NL80211_RRF_NO_IR),
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		/* Channel 14 */
		REG_RULE(2484-10, 2484+10, 20, 3, 20,
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			 NL80211_RRF_NO_IR |
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			 NL80211_RRF_NO_OFDM),
		/* Channel 36 - 48 */
		REG_RULE(5180-10, 5240+10, 40, 3, 20,
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			 NL80211_RRF_NO_IR),
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		/* Channel 149 - 165 */
		REG_RULE(5745-10, 5825+10, 40, 3, 20,
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			 NL80211_RRF_NO_IR),
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		/* Channel 52 - 64 */
		REG_RULE(5260-10, 5320+10, 40, 3, 30,
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			 NL80211_RRF_NO_IR |
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			 NL80211_RRF_DFS),
		/* Channel 100 - 140 */
		REG_RULE(5500-10, 5700+10, 40, 3, 30,
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			 NL80211_RRF_NO_IR |
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			 NL80211_RRF_DFS),
	}
};

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/*
 * This function maps the nl802.11 channel type into driver channel type.
 *
 * The mapping is as follows -
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 *      NL80211_CHAN_NO_HT     -> IEEE80211_HT_PARAM_CHA_SEC_NONE
 *      NL80211_CHAN_HT20      -> IEEE80211_HT_PARAM_CHA_SEC_NONE
 *      NL80211_CHAN_HT40PLUS  -> IEEE80211_HT_PARAM_CHA_SEC_ABOVE
 *      NL80211_CHAN_HT40MINUS -> IEEE80211_HT_PARAM_CHA_SEC_BELOW
 *      Others                 -> IEEE80211_HT_PARAM_CHA_SEC_NONE
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 */
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u8 mwifiex_chan_type_to_sec_chan_offset(enum nl80211_channel_type chan_type)
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{
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	switch (chan_type) {
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	case NL80211_CHAN_NO_HT:
	case NL80211_CHAN_HT20:
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		return IEEE80211_HT_PARAM_CHA_SEC_NONE;
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	case NL80211_CHAN_HT40PLUS:
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		return IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
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	case NL80211_CHAN_HT40MINUS:
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		return IEEE80211_HT_PARAM_CHA_SEC_BELOW;
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	default:
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		return IEEE80211_HT_PARAM_CHA_SEC_NONE;
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	}
}

/*
 * This function checks whether WEP is set.
 */
static int
mwifiex_is_alg_wep(u32 cipher)
{
	switch (cipher) {
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	case WLAN_CIPHER_SUITE_WEP40:
	case WLAN_CIPHER_SUITE_WEP104:
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		return 1;
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	default:
		break;
	}
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	return 0;
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}

/*
 * This function retrieves the private structure from kernel wiphy structure.
 */
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static void *mwifiex_cfg80211_get_adapter(struct wiphy *wiphy)
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{
	return (void *) (*(unsigned long *) wiphy_priv(wiphy));
}

/*
 * CFG802.11 operation handler to delete a network key.
 */
static int
mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev,
			 u8 key_index, bool pairwise, const u8 *mac_addr)
{
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	struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
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	const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
	const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
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	if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index, peer_mac, 1)) {
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		wiphy_err(wiphy, "deleting the crypto keys\n");
		return -EFAULT;
	}

	wiphy_dbg(wiphy, "info: crypto keys deleted\n");
	return 0;
}

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/*
 * This function forms an skb for management frame.
 */
static int
mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len)
{
	u8 addr[ETH_ALEN] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
	u16 pkt_len;
	u32 tx_control = 0, pkt_type = PKT_TYPE_MGMT;
	struct timeval tv;

	pkt_len = len + ETH_ALEN;

	skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN +
		    MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(pkt_len));
	memcpy(skb_push(skb, sizeof(pkt_len)), &pkt_len, sizeof(pkt_len));

	memcpy(skb_push(skb, sizeof(tx_control)),
	       &tx_control, sizeof(tx_control));

	memcpy(skb_push(skb, sizeof(pkt_type)), &pkt_type, sizeof(pkt_type));

	/* Add packet data and address4 */
	memcpy(skb_put(skb, sizeof(struct ieee80211_hdr_3addr)), buf,
	       sizeof(struct ieee80211_hdr_3addr));
	memcpy(skb_put(skb, ETH_ALEN), addr, ETH_ALEN);
	memcpy(skb_put(skb, len - sizeof(struct ieee80211_hdr_3addr)),
	       buf + sizeof(struct ieee80211_hdr_3addr),
	       len - sizeof(struct ieee80211_hdr_3addr));

	skb->priority = LOW_PRIO_TID;
	do_gettimeofday(&tv);
	skb->tstamp = timeval_to_ktime(tv);

	return 0;
}

/*
 * CFG802.11 operation handler to transmit a management frame.
 */
static int
mwifiex_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
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			 struct cfg80211_mgmt_tx_params *params, u64 *cookie)
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{
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	const u8 *buf = params->buf;
	size_t len = params->len;
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	struct sk_buff *skb;
	u16 pkt_len;
	const struct ieee80211_mgmt *mgmt;
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	struct mwifiex_txinfo *tx_info;
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	struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);

	if (!buf || !len) {
		wiphy_err(wiphy, "invalid buffer and length\n");
		return -EFAULT;
	}

	mgmt = (const struct ieee80211_mgmt *)buf;
	if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA &&
	    ieee80211_is_probe_resp(mgmt->frame_control)) {
		/* Since we support offload probe resp, we need to skip probe
		 * resp in AP or GO mode */
		wiphy_dbg(wiphy,
			  "info: skip to send probe resp in AP or GO mode\n");
		return 0;
	}

	pkt_len = len + ETH_ALEN;
	skb = dev_alloc_skb(MWIFIEX_MIN_DATA_HEADER_LEN +
			    MWIFIEX_MGMT_FRAME_HEADER_SIZE +
			    pkt_len + sizeof(pkt_len));

	if (!skb) {
		wiphy_err(wiphy, "allocate skb failed for management frame\n");
		return -ENOMEM;
	}

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	tx_info = MWIFIEX_SKB_TXCB(skb);
	tx_info->bss_num = priv->bss_num;
	tx_info->bss_type = priv->bss_type;
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	tx_info->pkt_len = pkt_len;
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	mwifiex_form_mgmt_frame(skb, buf, len);
	mwifiex_queue_tx_pkt(priv, skb);

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	*cookie = prandom_u32() | 1;
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	cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true, GFP_ATOMIC);

	wiphy_dbg(wiphy, "info: management frame transmitted\n");
	return 0;
}

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/*
 * CFG802.11 operation handler to register a mgmt frame.
 */
static void
mwifiex_cfg80211_mgmt_frame_register(struct wiphy *wiphy,
				     struct wireless_dev *wdev,
				     u16 frame_type, bool reg)
{
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
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	u32 mask;
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	if (reg)
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		mask = priv->mgmt_frame_mask | BIT(frame_type >> 4);
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	else
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		mask = priv->mgmt_frame_mask & ~BIT(frame_type >> 4);

	if (mask != priv->mgmt_frame_mask) {
		priv->mgmt_frame_mask = mask;
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		mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
				 HostCmd_ACT_GEN_SET, 0,
				 &priv->mgmt_frame_mask, false);
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		wiphy_dbg(wiphy, "info: mgmt frame registered\n");
	}
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}

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/*
 * CFG802.11 operation handler to remain on channel.
 */
static int
mwifiex_cfg80211_remain_on_channel(struct wiphy *wiphy,
				   struct wireless_dev *wdev,
				   struct ieee80211_channel *chan,
				   unsigned int duration, u64 *cookie)
{
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
	int ret;

	if (!chan || !cookie) {
		wiphy_err(wiphy, "Invalid parameter for ROC\n");
		return -EINVAL;
	}

	if (priv->roc_cfg.cookie) {
		wiphy_dbg(wiphy, "info: ongoing ROC, cookie = 0x%llu\n",
			  priv->roc_cfg.cookie);
		return -EBUSY;
	}

	ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_SET, chan,
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					 duration);
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	if (!ret) {
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		*cookie = prandom_u32() | 1;
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		priv->roc_cfg.cookie = *cookie;
		priv->roc_cfg.chan = *chan;

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		cfg80211_ready_on_channel(wdev, *cookie, chan,
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					  duration, GFP_ATOMIC);

		wiphy_dbg(wiphy, "info: ROC, cookie = 0x%llx\n", *cookie);
	}

	return ret;
}

/*
 * CFG802.11 operation handler to cancel remain on channel.
 */
static int
mwifiex_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
					  struct wireless_dev *wdev, u64 cookie)
{
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
	int ret;

	if (cookie != priv->roc_cfg.cookie)
		return -ENOENT;

	ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_REMOVE,
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					 &priv->roc_cfg.chan, 0);
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	if (!ret) {
		cfg80211_remain_on_channel_expired(wdev, cookie,
						   &priv->roc_cfg.chan,
						   GFP_ATOMIC);

		memset(&priv->roc_cfg, 0, sizeof(struct mwifiex_roc_cfg));

		wiphy_dbg(wiphy, "info: cancel ROC, cookie = 0x%llx\n", cookie);
	}

	return ret;
}

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/*
 * CFG802.11 operation handler to set Tx power.
 */
static int
mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy,
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			      struct wireless_dev *wdev,
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			      enum nl80211_tx_power_setting type,
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			      int mbm)
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{
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	struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
	struct mwifiex_private *priv;
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	struct mwifiex_power_cfg power_cfg;
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	int dbm = MBM_TO_DBM(mbm);
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	if (type == NL80211_TX_POWER_FIXED) {
		power_cfg.is_power_auto = 0;
		power_cfg.power_level = dbm;
	} else {
		power_cfg.is_power_auto = 1;
	}

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	priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);

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	return mwifiex_set_tx_power(priv, &power_cfg);
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}

/*
 * CFG802.11 operation handler to set Power Save option.
 *
 * The timeout value, if provided, is currently ignored.
 */
static int
mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy,
				struct net_device *dev,
				bool enabled, int timeout)
{
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	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
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	u32 ps_mode;
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	if (timeout)
		wiphy_dbg(wiphy,
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			  "info: ignore timeout value for IEEE Power Save\n");
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	ps_mode = enabled;
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	return mwifiex_drv_set_power(priv, &ps_mode);
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}

/*
 * CFG802.11 operation handler to set the default network key.
 */
static int
mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
				 u8 key_index, bool unicast,
				 bool multicast)
{
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	struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
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	/* Return if WEP key not configured */
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	if (!priv->sec_info.wep_enabled)
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		return 0;

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	if (priv->bss_type == MWIFIEX_BSS_TYPE_UAP) {
		priv->wep_key_curr_index = key_index;
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	} else if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index,
				      NULL, 0)) {
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		wiphy_err(wiphy, "set default Tx key index\n");
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		return -EFAULT;
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	}
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	return 0;
}

/*
 * CFG802.11 operation handler to add a network key.
 */
static int
mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev,
			 u8 key_index, bool pairwise, const u8 *mac_addr,
			 struct key_params *params)
{
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	struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
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	struct mwifiex_wep_key *wep_key;
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	const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
	const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
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	if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
	    (params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
	     params->cipher == WLAN_CIPHER_SUITE_WEP104)) {
		if (params->key && params->key_len) {
			wep_key = &priv->wep_key[key_index];
			memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
			memcpy(wep_key->key_material, params->key,
			       params->key_len);
			wep_key->key_index = key_index;
			wep_key->key_length = params->key_len;
			priv->sec_info.wep_enabled = 1;
		}
		return 0;
	}

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	if (mwifiex_set_encode(priv, params, params->key, params->key_len,
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			       key_index, peer_mac, 0)) {
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		wiphy_err(wiphy, "crypto keys added\n");
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		return -EFAULT;
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	}
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	return 0;
}

/*
 * This function sends domain information to the firmware.
 *
 * The following information are passed to the firmware -
 *      - Country codes
 *      - Sub bands (first channel, number of channels, maximum Tx power)
 */
static int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy)
{
	u8 no_of_triplet = 0;
	struct ieee80211_country_ie_triplet *t;
	u8 no_of_parsed_chan = 0;
	u8 first_chan = 0, next_chan = 0, max_pwr = 0;
	u8 i, flag = 0;
	enum ieee80211_band band;
	struct ieee80211_supported_band *sband;
	struct ieee80211_channel *ch;
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	struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
	struct mwifiex_private *priv;
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	struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg;

	/* Set country code */
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	domain_info->country_code[0] = adapter->country_code[0];
	domain_info->country_code[1] = adapter->country_code[1];
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	domain_info->country_code[2] = ' ';

	band = mwifiex_band_to_radio_type(adapter->config_bands);
	if (!wiphy->bands[band]) {
		wiphy_err(wiphy, "11D: setting domain info in FW\n");
		return -1;
	}

	sband = wiphy->bands[band];

	for (i = 0; i < sband->n_channels ; i++) {
		ch = &sband->channels[i];
		if (ch->flags & IEEE80211_CHAN_DISABLED)
			continue;

		if (!flag) {
			flag = 1;
			first_chan = (u32) ch->hw_value;
			next_chan = first_chan;
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			max_pwr = ch->max_power;
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			no_of_parsed_chan = 1;
			continue;
		}

		if (ch->hw_value == next_chan + 1 &&
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		    ch->max_power == max_pwr) {
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			next_chan++;
			no_of_parsed_chan++;
		} else {
			t = &domain_info->triplet[no_of_triplet];
			t->chans.first_channel = first_chan;
			t->chans.num_channels = no_of_parsed_chan;
			t->chans.max_power = max_pwr;
			no_of_triplet++;
			first_chan = (u32) ch->hw_value;
			next_chan = first_chan;
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			max_pwr = ch->max_power;
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			no_of_parsed_chan = 1;
		}
	}

	if (flag) {
		t = &domain_info->triplet[no_of_triplet];
		t->chans.first_channel = first_chan;
		t->chans.num_channels = no_of_parsed_chan;
		t->chans.max_power = max_pwr;
		no_of_triplet++;
	}

	domain_info->no_of_triplet = no_of_triplet;
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	priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);

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	if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
			     HostCmd_ACT_GEN_SET, 0, NULL, false)) {
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		wiphy_err(wiphy, "11D: setting domain info in FW\n");
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		return -1;
	}
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	return 0;
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}

/*
 * CFG802.11 regulatory domain callback function.
 *
 * This function is called when the regulatory domain is changed due to the
 * following reasons -
 *      - Set by driver
 *      - Set by system core
 *      - Set by user
 *      - Set bt Country IE
 */
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static void mwifiex_reg_notifier(struct wiphy *wiphy,
				 struct regulatory_request *request)
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{
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	struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
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	struct mwifiex_private *priv = mwifiex_get_priv(adapter,
							MWIFIEX_BSS_ROLE_ANY);
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	wiphy_dbg(wiphy, "info: cfg80211 regulatory domain callback for %c%c\n",
		  request->alpha2[0], request->alpha2[1]);
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	switch (request->initiator) {
	case NL80211_REGDOM_SET_BY_DRIVER:
	case NL80211_REGDOM_SET_BY_CORE:
	case NL80211_REGDOM_SET_BY_USER:
	case NL80211_REGDOM_SET_BY_COUNTRY_IE:
		break;
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	default:
		wiphy_err(wiphy, "unknown regdom initiator: %d\n",
			  request->initiator);
		return;
	}

	/* Don't send world or same regdom info to firmware */
	if (strncmp(request->alpha2, "00", 2) &&
	    strncmp(request->alpha2, adapter->country_code,
		    sizeof(request->alpha2))) {
		memcpy(adapter->country_code, request->alpha2,
		       sizeof(request->alpha2));
		mwifiex_send_domain_info_cmd_fw(wiphy);
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		mwifiex_dnld_txpwr_table(priv);
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	}
}

/*
 * This function sets the fragmentation threshold.
 *
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 * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
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 * and MWIFIEX_FRAG_MAX_VALUE.
 */
static int
mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
{
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	if (frag_thr < MWIFIEX_FRAG_MIN_VALUE ||
	    frag_thr > MWIFIEX_FRAG_MAX_VALUE)
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		frag_thr = MWIFIEX_FRAG_MAX_VALUE;
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	return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
				HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
				&frag_thr, true);
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}

/*
 * This function sets the RTS threshold.
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 * The rts value must lie between MWIFIEX_RTS_MIN_VALUE
 * and MWIFIEX_RTS_MAX_VALUE.
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 */
static int
mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
{
	if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
		rts_thr = MWIFIEX_RTS_MAX_VALUE;

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	return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
				HostCmd_ACT_GEN_SET, RTS_THRESH_I,
				&rts_thr, true);
603 604 605 606 607 608 609 610 611 612 613
}

/*
 * CFG802.11 operation handler to set wiphy parameters.
 *
 * This function can be used to set the RTS threshold and the
 * Fragmentation threshold of the driver.
 */
static int
mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
{
614
	struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639
	struct mwifiex_private *priv;
	struct mwifiex_uap_bss_param *bss_cfg;
	int ret, bss_started, i;

	for (i = 0; i < adapter->priv_num; i++) {
		priv = adapter->priv[i];

		switch (priv->bss_role) {
		case MWIFIEX_BSS_ROLE_UAP:
			bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param),
					  GFP_KERNEL);
			if (!bss_cfg)
				return -ENOMEM;

			mwifiex_set_sys_config_invalid_data(bss_cfg);

			if (changed & WIPHY_PARAM_RTS_THRESHOLD)
				bss_cfg->rts_threshold = wiphy->rts_threshold;
			if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
				bss_cfg->frag_threshold = wiphy->frag_threshold;
			if (changed & WIPHY_PARAM_RETRY_LONG)
				bss_cfg->retry_limit = wiphy->retry_long;

			bss_started = priv->bss_started;

640 641 642
			ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
					       HostCmd_ACT_GEN_SET, 0,
					       NULL, true);
643 644 645 646 647 648
			if (ret) {
				wiphy_err(wiphy, "Failed to stop the BSS\n");
				kfree(bss_cfg);
				return ret;
			}

649 650 651 652
			ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_SYS_CONFIG,
					       HostCmd_ACT_GEN_SET,
					       UAP_BSS_PARAMS_I, bss_cfg,
					       false);
653

654 655 656 657 658 659
			kfree(bss_cfg);

			if (ret) {
				wiphy_err(wiphy, "Failed to set bss config\n");
				return ret;
			}
660

661 662 663
			if (!bss_started)
				break;

664 665 666
			ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_START,
					       HostCmd_ACT_GEN_SET, 0,
					       NULL, false);
667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690
			if (ret) {
				wiphy_err(wiphy, "Failed to start BSS\n");
				return ret;
			}

			break;
		case MWIFIEX_BSS_ROLE_STA:
			if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
				ret = mwifiex_set_rts(priv,
						      wiphy->rts_threshold);
				if (ret)
					return ret;
			}
			if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
				ret = mwifiex_set_frag(priv,
						       wiphy->frag_threshold);
				if (ret)
					return ret;
			}
			break;
		}
	}

	return 0;
691 692
}

693 694 695 696 697
static int
mwifiex_cfg80211_deinit_p2p(struct mwifiex_private *priv)
{
	u16 mode = P2P_MODE_DISABLE;

698 699 700
	if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA)
		mwifiex_set_bss_role(priv, MWIFIEX_BSS_ROLE_STA);

701 702
	if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
			     HostCmd_ACT_GEN_SET, 0, &mode, true))
703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721
		return -1;

	return 0;
}

/*
 * This function initializes the functionalities for P2P client.
 * The P2P client initialization sequence is:
 * disable -> device -> client
 */
static int
mwifiex_cfg80211_init_p2p_client(struct mwifiex_private *priv)
{
	u16 mode;

	if (mwifiex_cfg80211_deinit_p2p(priv))
		return -1;

	mode = P2P_MODE_DEVICE;
722 723
	if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
			     HostCmd_ACT_GEN_SET, 0, &mode, true))
724 725 726
		return -1;

	mode = P2P_MODE_CLIENT;
727 728
	if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
			     HostCmd_ACT_GEN_SET, 0, &mode, true))
729 730 731 732 733
		return -1;

	return 0;
}

734 735 736 737 738 739 740 741 742 743 744 745 746 747
/*
 * This function initializes the functionalities for P2P GO.
 * The P2P GO initialization sequence is:
 * disable -> device -> GO
 */
static int
mwifiex_cfg80211_init_p2p_go(struct mwifiex_private *priv)
{
	u16 mode;

	if (mwifiex_cfg80211_deinit_p2p(priv))
		return -1;

	mode = P2P_MODE_DEVICE;
748 749
	if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
			     HostCmd_ACT_GEN_SET, 0, &mode, true))
750 751 752
		return -1;

	mode = P2P_MODE_GO;
753 754
	if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
			     HostCmd_ACT_GEN_SET, 0, &mode, true))
755 756 757 758 759 760 761 762
		return -1;

	if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
		mwifiex_set_bss_role(priv, MWIFIEX_BSS_ROLE_UAP);

	return 0;
}

763 764 765 766 767 768 769 770 771
/*
 * CFG802.11 operation handler to change interface type.
 */
static int
mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
				     struct net_device *dev,
				     enum nl80211_iftype type, u32 *flags,
				     struct vif_params *params)
{
772
	int ret;
773 774
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);

775
	switch (dev->ieee80211_ptr->iftype) {
776
	case NL80211_IFTYPE_ADHOC:
777 778 779 780 781 782 783 784 785 786 787 788 789
		switch (type) {
		case NL80211_IFTYPE_STATION:
			break;
		case NL80211_IFTYPE_UNSPECIFIED:
			wiphy_warn(wiphy, "%s: kept type as IBSS\n", dev->name);
		case NL80211_IFTYPE_ADHOC:	/* This shouldn't happen */
			return 0;
		case NL80211_IFTYPE_AP:
		default:
			wiphy_err(wiphy, "%s: changing to %d not supported\n",
				  dev->name, type);
			return -EOPNOTSUPP;
		}
790 791
		break;
	case NL80211_IFTYPE_STATION:
792 793 794
		switch (type) {
		case NL80211_IFTYPE_ADHOC:
			break;
795 796 797 798 799
		case NL80211_IFTYPE_P2P_CLIENT:
			if (mwifiex_cfg80211_init_p2p_client(priv))
				return -EFAULT;
			dev->ieee80211_ptr->iftype = type;
			return 0;
800 801 802 803 804
		case NL80211_IFTYPE_P2P_GO:
			if (mwifiex_cfg80211_init_p2p_go(priv))
				return -EFAULT;
			dev->ieee80211_ptr->iftype = type;
			return 0;
805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828
		case NL80211_IFTYPE_UNSPECIFIED:
			wiphy_warn(wiphy, "%s: kept type as STA\n", dev->name);
		case NL80211_IFTYPE_STATION:	/* This shouldn't happen */
			return 0;
		case NL80211_IFTYPE_AP:
		default:
			wiphy_err(wiphy, "%s: changing to %d not supported\n",
				  dev->name, type);
			return -EOPNOTSUPP;
		}
		break;
	case NL80211_IFTYPE_AP:
		switch (type) {
		case NL80211_IFTYPE_UNSPECIFIED:
			wiphy_warn(wiphy, "%s: kept type as AP\n", dev->name);
		case NL80211_IFTYPE_AP:		/* This shouldn't happen */
			return 0;
		case NL80211_IFTYPE_ADHOC:
		case NL80211_IFTYPE_STATION:
		default:
			wiphy_err(wiphy, "%s: changing to %d not supported\n",
				  dev->name, type);
			return -EOPNOTSUPP;
		}
829
		break;
830
	case NL80211_IFTYPE_P2P_CLIENT:
831
	case NL80211_IFTYPE_P2P_GO:
832 833 834 835 836 837 838 839 840 841
		switch (type) {
		case NL80211_IFTYPE_STATION:
			if (mwifiex_cfg80211_deinit_p2p(priv))
				return -EFAULT;
			dev->ieee80211_ptr->iftype = type;
			return 0;
		default:
			return -EOPNOTSUPP;
		}
		break;
842
	default:
843 844 845
		wiphy_err(wiphy, "%s: unknown iftype: %d\n",
			  dev->name, dev->ieee80211_ptr->iftype);
		return -EOPNOTSUPP;
846 847
	}

848 849
	dev->ieee80211_ptr->iftype = type;
	priv->bss_mode = type;
850
	mwifiex_deauthenticate(priv, NULL);
851

852
	priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
853

854 855
	ret = mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
			       HostCmd_ACT_GEN_SET, 0, NULL, true);
856

857 858 859
	return ret;
}

860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919
static void
mwifiex_parse_htinfo(struct mwifiex_private *priv, u8 tx_htinfo,
		     struct rate_info *rate)
{
	struct mwifiex_adapter *adapter = priv->adapter;

	if (adapter->is_hw_11ac_capable) {
		/* bit[1-0]: 00=LG 01=HT 10=VHT */
		if (tx_htinfo & BIT(0)) {
			/* HT */
			rate->mcs = priv->tx_rate;
			rate->flags |= RATE_INFO_FLAGS_MCS;
		}
		if (tx_htinfo & BIT(1)) {
			/* VHT */
			rate->mcs = priv->tx_rate & 0x0F;
			rate->flags |= RATE_INFO_FLAGS_VHT_MCS;
		}

		if (tx_htinfo & (BIT(1) | BIT(0))) {
			/* HT or VHT */
			switch (tx_htinfo & (BIT(3) | BIT(2))) {
			case 0:
				/* This will be 20MHz */
				break;
			case (BIT(2)):
				rate->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
				break;
			case (BIT(3)):
				rate->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
				break;
			case (BIT(3) | BIT(2)):
				rate->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
				break;
			}

			if (tx_htinfo & BIT(4))
				rate->flags |= RATE_INFO_FLAGS_SHORT_GI;

			if ((priv->tx_rate >> 4) == 1)
				rate->nss = 2;
			else
				rate->nss = 1;
		}
	} else {
		/*
		 * Bit 0 in tx_htinfo indicates that current Tx rate
		 * is 11n rate. Valid MCS index values for us are 0 to 15.
		 */
		if ((tx_htinfo & BIT(0)) && (priv->tx_rate < 16)) {
			rate->mcs = priv->tx_rate;
			rate->flags |= RATE_INFO_FLAGS_MCS;
			if (tx_htinfo & BIT(1))
				rate->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
			if (tx_htinfo & BIT(2))
				rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
		}
	}
}

920 921 922 923 924 925 926 927 928 929 930 931 932 933 934
/*
 * This function dumps the station information on a buffer.
 *
 * The following information are shown -
 *      - Total bytes transmitted
 *      - Total bytes received
 *      - Total packets transmitted
 *      - Total packets received
 *      - Signal quality level
 *      - Transmission rate
 */
static int
mwifiex_dump_station_info(struct mwifiex_private *priv,
			  struct station_info *sinfo)
{
935
	u32 rate;
936 937

	sinfo->filled = STATION_INFO_RX_BYTES | STATION_INFO_TX_BYTES |
938 939 940
			STATION_INFO_RX_PACKETS | STATION_INFO_TX_PACKETS |
			STATION_INFO_TX_BITRATE |
			STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
941 942

	/* Get signal information from the firmware */
943 944
	if (mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO,
			     HostCmd_ACT_GEN_GET, 0, NULL, true)) {
945 946
		dev_err(priv->adapter->dev, "failed to get signal information\n");
		return -EFAULT;
947 948 949 950
	}

	if (mwifiex_drv_get_data_rate(priv, &rate)) {
		dev_err(priv->adapter->dev, "getting data rate\n");
951
		return -EFAULT;
952 953
	}

954
	/* Get DTIM period information from firmware */
955 956 957
	mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
			 HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
			 &priv->dtim_period, true);
958

959
	mwifiex_parse_htinfo(priv, priv->tx_htinfo, &sinfo->txrate);
960

961
	sinfo->signal_avg = priv->bcn_rssi_avg;
962 963 964 965
	sinfo->rx_bytes = priv->stats.rx_bytes;
	sinfo->tx_bytes = priv->stats.tx_bytes;
	sinfo->rx_packets = priv->stats.rx_packets;
	sinfo->tx_packets = priv->stats.tx_packets;
966
	sinfo->signal = priv->bcn_rssi_avg;
967
	/* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
968
	sinfo->txrate.legacy = rate * 5;
969

970 971 972 973 974 975 976 977 978 979 980
	if (priv->bss_mode == NL80211_IFTYPE_STATION) {
		sinfo->filled |= STATION_INFO_BSS_PARAM;
		sinfo->bss_param.flags = 0;
		if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
						WLAN_CAPABILITY_SHORT_PREAMBLE)
			sinfo->bss_param.flags |=
					BSS_PARAM_FLAGS_SHORT_PREAMBLE;
		if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
						WLAN_CAPABILITY_SHORT_SLOT_TIME)
			sinfo->bss_param.flags |=
					BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
981
		sinfo->bss_param.dtim_period = priv->dtim_period;
982 983 984 985
		sinfo->bss_param.beacon_interval =
			priv->curr_bss_params.bss_descriptor.beacon_period;
	}

986
	return 0;
987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005
}

/*
 * CFG802.11 operation handler to get station information.
 *
 * This function only works in connected mode, and dumps the
 * requested station information, if available.
 */
static int
mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
			     u8 *mac, struct station_info *sinfo)
{
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);

	if (!priv->media_connected)
		return -ENOENT;
	if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
		return -ENOENT;

1006
	return mwifiex_dump_station_info(priv, sinfo);
1007 1008
}

1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025
/*
 * CFG802.11 operation handler to dump station information.
 */
static int
mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
			      int idx, u8 *mac, struct station_info *sinfo)
{
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);

	if (!priv->media_connected || idx)
		return -ENOENT;

	memcpy(mac, priv->cfg_bssid, ETH_ALEN);

	return mwifiex_dump_station_info(priv, sinfo);
}

1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063
/* Supported rates to be advertised to the cfg80211 */
static struct ieee80211_rate mwifiex_rates[] = {
	{.bitrate = 10, .hw_value = 2, },
	{.bitrate = 20, .hw_value = 4, },
	{.bitrate = 55, .hw_value = 11, },
	{.bitrate = 110, .hw_value = 22, },
	{.bitrate = 60, .hw_value = 12, },
	{.bitrate = 90, .hw_value = 18, },
	{.bitrate = 120, .hw_value = 24, },
	{.bitrate = 180, .hw_value = 36, },
	{.bitrate = 240, .hw_value = 48, },
	{.bitrate = 360, .hw_value = 72, },
	{.bitrate = 480, .hw_value = 96, },
	{.bitrate = 540, .hw_value = 108, },
};

/* Channel definitions to be advertised to cfg80211 */
static struct ieee80211_channel mwifiex_channels_2ghz[] = {
	{.center_freq = 2412, .hw_value = 1, },
	{.center_freq = 2417, .hw_value = 2, },
	{.center_freq = 2422, .hw_value = 3, },
	{.center_freq = 2427, .hw_value = 4, },
	{.center_freq = 2432, .hw_value = 5, },
	{.center_freq = 2437, .hw_value = 6, },
	{.center_freq = 2442, .hw_value = 7, },
	{.center_freq = 2447, .hw_value = 8, },
	{.center_freq = 2452, .hw_value = 9, },
	{.center_freq = 2457, .hw_value = 10, },
	{.center_freq = 2462, .hw_value = 11, },
	{.center_freq = 2467, .hw_value = 12, },
	{.center_freq = 2472, .hw_value = 13, },
	{.center_freq = 2484, .hw_value = 14, },
};

static struct ieee80211_supported_band mwifiex_band_2ghz = {
	.channels = mwifiex_channels_2ghz,
	.n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
	.bitrates = mwifiex_rates,
1064
	.n_bitrates = ARRAY_SIZE(mwifiex_rates),
1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103
};

static struct ieee80211_channel mwifiex_channels_5ghz[] = {
	{.center_freq = 5040, .hw_value = 8, },
	{.center_freq = 5060, .hw_value = 12, },
	{.center_freq = 5080, .hw_value = 16, },
	{.center_freq = 5170, .hw_value = 34, },
	{.center_freq = 5190, .hw_value = 38, },
	{.center_freq = 5210, .hw_value = 42, },
	{.center_freq = 5230, .hw_value = 46, },
	{.center_freq = 5180, .hw_value = 36, },
	{.center_freq = 5200, .hw_value = 40, },
	{.center_freq = 5220, .hw_value = 44, },
	{.center_freq = 5240, .hw_value = 48, },
	{.center_freq = 5260, .hw_value = 52, },
	{.center_freq = 5280, .hw_value = 56, },
	{.center_freq = 5300, .hw_value = 60, },
	{.center_freq = 5320, .hw_value = 64, },
	{.center_freq = 5500, .hw_value = 100, },
	{.center_freq = 5520, .hw_value = 104, },
	{.center_freq = 5540, .hw_value = 108, },
	{.center_freq = 5560, .hw_value = 112, },
	{.center_freq = 5580, .hw_value = 116, },
	{.center_freq = 5600, .hw_value = 120, },
	{.center_freq = 5620, .hw_value = 124, },
	{.center_freq = 5640, .hw_value = 128, },
	{.center_freq = 5660, .hw_value = 132, },
	{.center_freq = 5680, .hw_value = 136, },
	{.center_freq = 5700, .hw_value = 140, },
	{.center_freq = 5745, .hw_value = 149, },
	{.center_freq = 5765, .hw_value = 153, },
	{.center_freq = 5785, .hw_value = 157, },
	{.center_freq = 5805, .hw_value = 161, },
	{.center_freq = 5825, .hw_value = 165, },
};

static struct ieee80211_supported_band mwifiex_band_5ghz = {
	.channels = mwifiex_channels_5ghz,
	.n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
1104 1105
	.bitrates = mwifiex_rates + 4,
	.n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
1106 1107 1108 1109 1110 1111 1112 1113 1114
};


/* Supported crypto cipher suits to be advertised to cfg80211 */
static const u32 mwifiex_cipher_suites[] = {
	WLAN_CIPHER_SUITE_WEP40,
	WLAN_CIPHER_SUITE_WEP104,
	WLAN_CIPHER_SUITE_TKIP,
	WLAN_CIPHER_SUITE_CCMP,
1115
	WLAN_CIPHER_SUITE_AES_CMAC,
1116 1117
};

1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146
/* Supported mgmt frame types to be advertised to cfg80211 */
static const struct ieee80211_txrx_stypes
mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = {
	[NL80211_IFTYPE_STATION] = {
		.tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
		      BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
		.rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
		      BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
	},
	[NL80211_IFTYPE_AP] = {
		.tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
		      BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
		.rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
		      BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
	},
	[NL80211_IFTYPE_P2P_CLIENT] = {
		.tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
		      BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
		.rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
		      BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
	},
	[NL80211_IFTYPE_P2P_GO] = {
		.tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
		      BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
		.rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
		      BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
	},
};

1147 1148 1149
/*
 * CFG802.11 operation handler for setting bit rates.
 *
1150 1151
 * Function configures data rates to firmware using bitrate mask
 * provided by cfg80211.
1152 1153 1154 1155 1156 1157 1158
 */
static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
				struct net_device *dev,
				const u8 *peer,
				const struct cfg80211_bitrate_mask *mask)
{
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1159 1160
	u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
	enum ieee80211_band band;
1161
	struct mwifiex_adapter *adapter = priv->adapter;
1162

1163
	if (!priv->media_connected) {
1164
		dev_err(adapter->dev,
1165 1166
			"Can not set Tx data rate in disconnected state\n");
		return -EINVAL;
1167 1168
	}

1169
	band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1170

1171
	memset(bitmap_rates, 0, sizeof(bitmap_rates));
1172

1173 1174 1175
	/* Fill HR/DSSS rates. */
	if (band == IEEE80211_BAND_2GHZ)
		bitmap_rates[0] = mask->control[band].legacy & 0x000f;
1176

1177 1178 1179 1180 1181 1182
	/* Fill OFDM rates */
	if (band == IEEE80211_BAND_2GHZ)
		bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4;
	else
		bitmap_rates[1] = mask->control[band].legacy;

1183 1184
	/* Fill HT MCS rates */
	bitmap_rates[2] = mask->control[band].ht_mcs[0];
1185
	if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1186
		bitmap_rates[2] |= mask->control[band].ht_mcs[1] << 8;
1187

1188 1189 1190 1191 1192 1193 1194
       /* Fill VHT MCS rates */
	if (adapter->fw_api_ver == MWIFIEX_FW_V15) {
		bitmap_rates[10] = mask->control[band].vht_mcs[0];
		if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
			bitmap_rates[11] = mask->control[band].vht_mcs[1];
	}

1195 1196
	return mwifiex_send_cmd(priv, HostCmd_CMD_TX_RATE_CFG,
				HostCmd_ACT_GEN_SET, 0, bitmap_rates, true);
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
/*
 * CFG802.11 operation handler for connection quality monitoring.
 *
 * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI
 * events to FW.
 */
static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy,
						struct net_device *dev,
						s32 rssi_thold, u32 rssi_hyst)
{
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
	struct mwifiex_ds_misc_subsc_evt subsc_evt;

	priv->cqm_rssi_thold = rssi_thold;
	priv->cqm_rssi_hyst = rssi_hyst;

	memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
	subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;

	/* Subscribe/unsubscribe low and high rssi events */
	if (rssi_thold && rssi_hyst) {
		subsc_evt.action = HostCmd_ACT_BITWISE_SET;
		subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold);
		subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold);
		subsc_evt.bcn_l_rssi_cfg.evt_freq = 1;
		subsc_evt.bcn_h_rssi_cfg.evt_freq = 1;
1225 1226 1227
		return mwifiex_send_cmd(priv,
					HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
					0, 0, &subsc_evt, true);
1228 1229
	} else {
		subsc_evt.action = HostCmd_ACT_BITWISE_CLR;
1230 1231 1232
		return mwifiex_send_cmd(priv,
					HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
					0, 0, &subsc_evt, true);
1233 1234 1235 1236 1237
	}

	return 0;
}

1238 1239 1240 1241 1242 1243 1244 1245 1246
/* cfg80211 operation handler for change_beacon.
 * Function retrieves and sets modified management IEs to FW.
 */
static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy,
					  struct net_device *dev,
					  struct cfg80211_beacon_data *data)
{
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);

1247
	if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) {
1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264
		wiphy_err(wiphy, "%s: bss_type mismatched\n", __func__);
		return -EINVAL;
	}

	if (!priv->bss_started) {
		wiphy_err(wiphy, "%s: bss not started\n", __func__);
		return -EINVAL;
	}

	if (mwifiex_set_mgmt_ies(priv, data)) {
		wiphy_err(wiphy, "%s: setting mgmt ies failed\n", __func__);
		return -EFAULT;
	}

	return 0;
}

A
Avinash Patil 已提交
1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284
/* cfg80211 operation handler for del_station.
 * Function deauthenticates station which value is provided in mac parameter.
 * If mac is NULL/broadcast, all stations in associated station list are
 * deauthenticated. If bss is not started or there are no stations in
 * associated stations list, no action is taken.
 */
static int
mwifiex_cfg80211_del_station(struct wiphy *wiphy, struct net_device *dev,
			     u8 *mac)
{
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
	struct mwifiex_sta_node *sta_node;
	unsigned long flags;

	if (list_empty(&priv->sta_list) || !priv->bss_started)
		return 0;

	if (!mac || is_broadcast_ether_addr(mac)) {
		wiphy_dbg(wiphy, "%s: NULL/broadcast mac address\n", __func__);
		list_for_each_entry(sta_node, &priv->sta_list, list) {
1285 1286 1287
			if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_STA_DEAUTH,
					     HostCmd_ACT_GEN_SET, 0,
					     sta_node->mac_addr, true))
A
Avinash Patil 已提交
1288 1289 1290 1291 1292 1293 1294 1295 1296
				return -1;
			mwifiex_uap_del_sta_data(priv, sta_node);
		}
	} else {
		wiphy_dbg(wiphy, "%s: mac address %pM\n", __func__, mac);
		spin_lock_irqsave(&priv->sta_list_spinlock, flags);
		sta_node = mwifiex_get_sta_entry(priv, mac);
		spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
		if (sta_node) {
1297 1298 1299
			if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_STA_DEAUTH,
					     HostCmd_ACT_GEN_SET, 0,
					     sta_node->mac_addr, true))
A
Avinash Patil 已提交
1300 1301 1302 1303 1304 1305 1306 1307
				return -1;
			mwifiex_uap_del_sta_data(priv, sta_node);
		}
	}

	return 0;
}

1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334
static int
mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
{
	struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
	struct mwifiex_private *priv = mwifiex_get_priv(adapter,
							MWIFIEX_BSS_ROLE_ANY);
	struct mwifiex_ds_ant_cfg ant_cfg;

	if (!tx_ant || !rx_ant)
		return -EOPNOTSUPP;

	if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) {
		/* Not a MIMO chip. User should provide specific antenna number
		 * for Tx/Rx path or enable all antennas for diversity
		 */
		if (tx_ant != rx_ant)
			return -EOPNOTSUPP;

		if ((tx_ant & (tx_ant - 1)) &&
		    (tx_ant != BIT(adapter->number_of_antenna) - 1))
			return -EOPNOTSUPP;

		if ((tx_ant == BIT(adapter->number_of_antenna) - 1) &&
		    (priv->adapter->number_of_antenna > 1)) {
			tx_ant = RF_ANTENNA_AUTO;
			rx_ant = RF_ANTENNA_AUTO;
		}
1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361
	} else {
		struct ieee80211_sta_ht_cap *ht_info;
		int rx_mcs_supp;
		enum ieee80211_band band;

		if ((tx_ant == 0x1 && rx_ant == 0x1)) {
			adapter->user_dev_mcs_support = HT_STREAM_1X1;
			if (adapter->is_hw_11ac_capable)
				adapter->usr_dot_11ac_mcs_support =
						MWIFIEX_11AC_MCS_MAP_1X1;
		} else {
			adapter->user_dev_mcs_support = HT_STREAM_2X2;
			if (adapter->is_hw_11ac_capable)
				adapter->usr_dot_11ac_mcs_support =
						MWIFIEX_11AC_MCS_MAP_2X2;
		}

		for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
			if (!adapter->wiphy->bands[band])
				continue;

			ht_info = &adapter->wiphy->bands[band]->ht_cap;
			rx_mcs_supp =
				GET_RXMCSSUPP(adapter->user_dev_mcs_support);
			memset(&ht_info->mcs, 0, adapter->number_of_antenna);
			memset(&ht_info->mcs, 0xff, rx_mcs_supp);
		}
1362 1363 1364 1365 1366
	}

	ant_cfg.tx_ant = tx_ant;
	ant_cfg.rx_ant = rx_ant;

1367 1368
	return mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA,
				HostCmd_ACT_GEN_SET, 0, &ant_cfg, true);
1369 1370
}

1371 1372 1373 1374 1375 1376 1377
/* cfg80211 operation handler for stop ap.
 * Function stops BSS running at uAP interface.
 */
static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
{
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);

A
Avinash Patil 已提交
1378 1379 1380
	if (mwifiex_del_mgmt_ies(priv))
		wiphy_err(wiphy, "Failed to delete mgmt IEs!\n");

1381 1382
	priv->ap_11n_enabled = 0;

1383 1384
	if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
			     HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402
		wiphy_err(wiphy, "Failed to stop the BSS\n");
		return -1;
	}

	return 0;
}

/* cfg80211 operation handler for start_ap.
 * Function sets beacon period, DTIM period, SSID and security into
 * AP config structure.
 * AP is configured with these settings and BSS is started.
 */
static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
				     struct net_device *dev,
				     struct cfg80211_ap_settings *params)
{
	struct mwifiex_uap_bss_param *bss_cfg;
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1403
	u8 config_bands = 0;
1404

1405
	if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
A
Avinash Patil 已提交
1406
		return -1;
1407
	if (mwifiex_set_mgmt_ies(priv, &params->beacon))
1408
		return -1;
A
Avinash Patil 已提交
1409

1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425
	bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL);
	if (!bss_cfg)
		return -ENOMEM;

	mwifiex_set_sys_config_invalid_data(bss_cfg);

	if (params->beacon_interval)
		bss_cfg->beacon_period = params->beacon_interval;
	if (params->dtim_period)
		bss_cfg->dtim_period = params->dtim_period;

	if (params->ssid && params->ssid_len) {
		memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len);
		bss_cfg->ssid.ssid_len = params->ssid_len;
	}

1426 1427 1428 1429 1430 1431 1432 1433 1434 1435
	switch (params->hidden_ssid) {
	case NL80211_HIDDEN_SSID_NOT_IN_USE:
		bss_cfg->bcast_ssid_ctl = 1;
		break;
	case NL80211_HIDDEN_SSID_ZERO_LEN:
		bss_cfg->bcast_ssid_ctl = 0;
		break;
	case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
		/* firmware doesn't support this type of hidden SSID */
	default:
1436
		kfree(bss_cfg);
1437 1438 1439
		return -EINVAL;
	}

1440 1441
	bss_cfg->channel = ieee80211_frequency_to_channel(
				params->chandef.chan->center_freq);
1442

1443
	/* Set appropriate bands */
1444
	if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) {
A
Avinash Patil 已提交
1445
		bss_cfg->band_cfg = BAND_CONFIG_BG;
1446
		config_bands = BAND_B | BAND_G;
A
Avinash Patil 已提交
1447

1448 1449
		if (params->chandef.width > NL80211_CHAN_WIDTH_20_NOHT)
			config_bands |= BAND_GN;
1450
	} else {
A
Avinash Patil 已提交
1451
		bss_cfg->band_cfg = BAND_CONFIG_A;
1452
		config_bands = BAND_A;
A
Avinash Patil 已提交
1453

1454 1455 1456 1457 1458
		if (params->chandef.width > NL80211_CHAN_WIDTH_20_NOHT)
			config_bands |= BAND_AN;

		if (params->chandef.width > NL80211_CHAN_WIDTH_40)
			config_bands |= BAND_AAC;
1459 1460
	}

1461 1462 1463 1464
	if (!((config_bands | priv->adapter->fw_bands) &
	      ~priv->adapter->fw_bands))
		priv->adapter->config_bands = config_bands;

A
Avinash Patil 已提交
1465
	mwifiex_set_uap_rates(bss_cfg, params);
1466 1467
	mwifiex_send_domain_info_cmd_fw(wiphy);

A
Avinash Patil 已提交
1468 1469 1470 1471 1472 1473
	if (mwifiex_set_secure_params(priv, bss_cfg, params)) {
		kfree(bss_cfg);
		wiphy_err(wiphy, "Failed to parse secuirty parameters!\n");
		return -1;
	}

1474
	mwifiex_set_ht_params(priv, bss_cfg, params);
1475 1476 1477 1478 1479 1480 1481

	if (priv->adapter->is_hw_11ac_capable) {
		mwifiex_set_vht_params(priv, bss_cfg, params);
		mwifiex_set_vht_width(priv, params->chandef.width,
				      priv->ap_11ac_enabled);
	}

1482 1483 1484 1485 1486
	if (priv->ap_11ac_enabled)
		mwifiex_set_11ac_ba_params(priv);
	else
		mwifiex_set_ba_params(priv);

1487
	mwifiex_set_wmm_params(priv, bss_cfg, params);
1488

1489 1490 1491 1492 1493 1494
	if (params->inactivity_timeout > 0) {
		/* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */
		bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout;
		bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout;
	}

1495 1496
	if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
			     HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1497 1498 1499 1500 1501
		wiphy_err(wiphy, "Failed to stop the BSS\n");
		kfree(bss_cfg);
		return -1;
	}

1502 1503 1504
	if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_SYS_CONFIG,
			     HostCmd_ACT_GEN_SET,
			     UAP_BSS_PARAMS_I, bss_cfg, false)) {
1505 1506 1507 1508 1509 1510 1511
		wiphy_err(wiphy, "Failed to set the SSID\n");
		kfree(bss_cfg);
		return -1;
	}

	kfree(bss_cfg);

1512 1513
	if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_START,
			     HostCmd_ACT_GEN_SET, 0, NULL, false)) {
1514 1515 1516 1517
		wiphy_err(wiphy, "Failed to start the BSS\n");
		return -1;
	}

1518 1519 1520 1521 1522
	if (priv->sec_info.wep_enabled)
		priv->curr_pkt_filter |= HostCmd_ACT_MAC_WEP_ENABLE;
	else
		priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_WEP_ENABLE;

1523 1524 1525
	if (mwifiex_send_cmd(priv, HostCmd_CMD_MAC_CONTROL,
			     HostCmd_ACT_GEN_SET, 0,
			     &priv->curr_pkt_filter, true))
1526 1527
		return -1;

1528 1529 1530
	return 0;
}

1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542
/*
 * CFG802.11 operation handler for disconnection request.
 *
 * This function does not work when there is already a disconnection
 * procedure going on.
 */
static int
mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
			    u16 reason_code)
{
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);

1543
	if (mwifiex_deauthenticate(priv, NULL))
1544 1545 1546 1547 1548
		return -EFAULT;

	wiphy_dbg(wiphy, "info: successfully disconnected from %pM:"
		" reason code %d\n", priv->cfg_bssid, reason_code);

A
Amitkumar Karwar 已提交
1549
	memset(priv->cfg_bssid, 0, ETH_ALEN);
1550
	priv->hs2_enabled = false;
1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569

	return 0;
}

/*
 * This function informs the CFG802.11 subsystem of a new IBSS.
 *
 * The following information are sent to the CFG802.11 subsystem
 * to register the new IBSS. If we do not register the new IBSS,
 * a kernel panic will result.
 *      - SSID
 *      - SSID length
 *      - BSSID
 *      - Channel
 */
static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
{
	struct ieee80211_channel *chan;
	struct mwifiex_bss_info bss_info;
1570
	struct cfg80211_bss *bss;
1571
	int ie_len;
1572
	u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
1573
	enum ieee80211_band band;
1574

1575 1576
	if (mwifiex_get_bss_info(priv, &bss_info))
		return -1;
1577 1578 1579 1580 1581

	ie_buf[0] = WLAN_EID_SSID;
	ie_buf[1] = bss_info.ssid.ssid_len;

	memcpy(&ie_buf[sizeof(struct ieee_types_header)],
1582
	       &bss_info.ssid.ssid, bss_info.ssid.ssid_len);
1583 1584
	ie_len = ie_buf[1] + sizeof(struct ieee_types_header);

1585
	band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1586 1587
	chan = __ieee80211_get_channel(priv->wdev->wiphy,
			ieee80211_channel_to_frequency(bss_info.bss_chan,
1588
						       band));
1589

1590
	bss = cfg80211_inform_bss(priv->wdev->wiphy, chan,
1591 1592
				  bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
				  0, ie_buf, ie_len, 0, GFP_KERNEL);
1593
	cfg80211_put_bss(priv->wdev->wiphy, bss);
1594 1595
	memcpy(priv->cfg_bssid, bss_info.bssid, ETH_ALEN);

1596
	return 0;
1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610
}

/*
 * This function connects with a BSS.
 *
 * This function handles both Infra and Ad-Hoc modes. It also performs
 * validity checking on the provided parameters, disconnects from the
 * current BSS (if any), sets up the association/scan parameters,
 * including security settings, and performs specific SSID scan before
 * trying to connect.
 *
 * For Infra mode, the function returns failure if the specified SSID
 * is not found in scan table. However, for Ad-Hoc mode, it can create
 * the IBSS if it does not exist. On successful completion in either case,
1611
 * the function notifies the CFG802.11 subsystem of the new BSS connection.
1612 1613
 */
static int
1614 1615 1616
mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len,
		       const u8 *ssid, const u8 *bssid, int mode,
		       struct ieee80211_channel *channel,
1617 1618
		       struct cfg80211_connect_params *sme, bool privacy)
{
1619
	struct cfg80211_ssid req_ssid;
1620
	int ret, auth_type = 0;
1621
	struct cfg80211_bss *bss = NULL;
1622
	u8 is_scanning_required = 0;
1623

1624
	memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638

	req_ssid.ssid_len = ssid_len;
	if (ssid_len > IEEE80211_MAX_SSID_LEN) {
		dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
		return -EINVAL;
	}

	memcpy(req_ssid.ssid, ssid, ssid_len);
	if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
		dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
		return -EINVAL;
	}

	/* disconnect before try to associate */
1639
	mwifiex_deauthenticate(priv, NULL);
1640

1641 1642 1643 1644 1645
	/* As this is new association, clear locally stored
	 * keys and security related flags */
	priv->sec_info.wpa_enabled = false;
	priv->sec_info.wpa2_enabled = false;
	priv->wep_key_curr_index = 0;
1646
	priv->sec_info.encryption_mode = 0;
1647
	priv->sec_info.is_authtype_auto = 0;
1648
	ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1);
1649

1650
	if (mode == NL80211_IFTYPE_ADHOC) {
1651 1652 1653
		/* "privacy" is set only for ad-hoc mode */
		if (privacy) {
			/*
1654
			 * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
1655 1656 1657 1658
			 * the firmware can find a matching network from the
			 * scan. The cfg80211 does not give us the encryption
			 * mode at this stage so just setting it to WEP here.
			 */
1659
			priv->sec_info.encryption_mode =
1660
					WLAN_CIPHER_SUITE_WEP104;
1661
			priv->sec_info.authentication_mode =
1662
					NL80211_AUTHTYPE_OPEN_SYSTEM;
1663 1664 1665 1666 1667 1668
		}

		goto done;
	}

	/* Now handle infra mode. "sme" is valid for infra mode only */
1669
	if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
1670
		auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
1671 1672 1673 1674
		priv->sec_info.is_authtype_auto = 1;
	} else {
		auth_type = sme->auth_type;
	}
1675 1676

	if (sme->crypto.n_ciphers_pairwise) {
1677 1678
		priv->sec_info.encryption_mode =
						sme->crypto.ciphers_pairwise[0];
1679
		priv->sec_info.authentication_mode = auth_type;
1680 1681 1682
	}

	if (sme->crypto.cipher_group) {
1683
		priv->sec_info.encryption_mode = sme->crypto.cipher_group;
1684
		priv->sec_info.authentication_mode = auth_type;
1685 1686 1687 1688 1689
	}
	if (sme->ie)
		ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);

	if (sme->key) {
1690
		if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
1691 1692 1693
			dev_dbg(priv->adapter->dev,
				"info: setting wep encryption"
				" with key len %d\n", sme->key_len);
1694
			priv->wep_key_curr_index = sme->key_idx;
1695 1696 1697
			ret = mwifiex_set_encode(priv, NULL, sme->key,
						 sme->key_len, sme->key_idx,
						 NULL, 0);
1698 1699 1700
		}
	}
done:
1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713
	/*
	 * Scan entries are valid for some time (15 sec). So we can save one
	 * active scan time if we just try cfg80211_get_bss first. If it fails
	 * then request scan and cfg80211_get_bss() again for final output.
	 */
	while (1) {
		if (is_scanning_required) {
			/* Do specific SSID scanning */
			if (mwifiex_request_scan(priv, &req_ssid)) {
				dev_err(priv->adapter->dev, "scan error\n");
				return -EFAULT;
			}
		}
1714

1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728
		/* Find the BSS we want using available scan results */
		if (mode == NL80211_IFTYPE_ADHOC)
			bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
					       bssid, ssid, ssid_len,
					       WLAN_CAPABILITY_IBSS,
					       WLAN_CAPABILITY_IBSS);
		else
			bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
					       bssid, ssid, ssid_len,
					       WLAN_CAPABILITY_ESS,
					       WLAN_CAPABILITY_ESS);

		if (!bss) {
			if (is_scanning_required) {
1729 1730
				dev_warn(priv->adapter->dev,
					 "assoc: requested bss not found in scan results\n");
1731 1732 1733 1734
				break;
			}
			is_scanning_required = 1;
		} else {
1735 1736 1737
			dev_dbg(priv->adapter->dev,
				"info: trying to associate to '%s' bssid %pM\n",
				(char *) req_ssid.ssid, bss->bssid);
1738 1739 1740
			memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
			break;
		}
1741 1742
	}

1743 1744 1745
	ret = mwifiex_bss_start(priv, bss, &req_ssid);
	if (ret)
		return ret;
1746

1747
	if (mode == NL80211_IFTYPE_ADHOC) {
1748 1749 1750 1751 1752 1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768
		/* Inform the BSS information to kernel, otherwise
		 * kernel will give a panic after successful assoc */
		if (mwifiex_cfg80211_inform_ibss_bss(priv))
			return -EFAULT;
	}

	return ret;
}

/*
 * CFG802.11 operation handler for association request.
 *
 * This function does not work when the current mode is set to Ad-Hoc, or
 * when there is already an association procedure going on. The given BSS
 * information is used to associate.
 */
static int
mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
			 struct cfg80211_connect_params *sme)
{
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1769
	int ret;
1770

1771
	if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) {
1772
		wiphy_err(wiphy,
1773
			  "%s: reject infra assoc request in non-STA role\n",
1774 1775
			  dev->name);
		return -EINVAL;
1776 1777
	}

1778
	wiphy_dbg(wiphy, "info: Trying to associate to %s and bssid %pM\n",
1779
		  (char *) sme->ssid, sme->bssid);
1780 1781

	ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
1782
				     priv->bss_mode, sme->channel, sme, 0);
A
Amitkumar Karwar 已提交
1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794
	if (!ret) {
		cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0,
					NULL, 0, WLAN_STATUS_SUCCESS,
					GFP_KERNEL);
		dev_dbg(priv->adapter->dev,
			"info: associated to bssid %pM successfully\n",
			priv->cfg_bssid);
	} else {
		dev_dbg(priv->adapter->dev,
			"info: association to bssid %pM failed\n",
			priv->cfg_bssid);
		memset(priv->cfg_bssid, 0, ETH_ALEN);
1795 1796 1797 1798 1799 1800 1801 1802 1803 1804

		if (ret > 0)
			cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
						NULL, 0, NULL, 0, ret,
						GFP_KERNEL);
		else
			cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
						NULL, 0, NULL, 0,
						WLAN_STATUS_UNSPECIFIED_FAILURE,
						GFP_KERNEL);
A
Amitkumar Karwar 已提交
1805 1806
	}

1807
	return 0;
1808 1809
}

1810 1811 1812 1813 1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824
/*
 * This function sets following parameters for ibss network.
 *  -  channel
 *  -  start band
 *  -  11n flag
 *  -  secondary channel offset
 */
static int mwifiex_set_ibss_params(struct mwifiex_private *priv,
				   struct cfg80211_ibss_params *params)
{
	struct wiphy *wiphy = priv->wdev->wiphy;
	struct mwifiex_adapter *adapter = priv->adapter;
	int index = 0, i;
	u8 config_bands = 0;

1825
	if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) {
1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849
		if (!params->basic_rates) {
			config_bands = BAND_B | BAND_G;
		} else {
			for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
				/*
				 * Rates below 6 Mbps in the table are CCK
				 * rates; 802.11b and from 6 they are OFDM;
				 * 802.11G
				 */
				if (mwifiex_rates[i].bitrate == 60) {
					index = 1 << i;
					break;
				}
			}

			if (params->basic_rates < index) {
				config_bands = BAND_B;
			} else {
				config_bands = BAND_G;
				if (params->basic_rates % index)
					config_bands |= BAND_B;
			}
		}

1850 1851
		if (cfg80211_get_chandef_type(&params->chandef) !=
						NL80211_CHAN_NO_HT)
1852
			config_bands |= BAND_G | BAND_GN;
1853
	} else {
1854
		if (cfg80211_get_chandef_type(&params->chandef) ==
1855
						NL80211_CHAN_NO_HT)
1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871
			config_bands = BAND_A;
		else
			config_bands = BAND_AN | BAND_A;
	}

	if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) {
		adapter->config_bands = config_bands;
		adapter->adhoc_start_band = config_bands;

		if ((config_bands & BAND_GN) || (config_bands & BAND_AN))
			adapter->adhoc_11n_enabled = true;
		else
			adapter->adhoc_11n_enabled = false;
	}

	adapter->sec_chan_offset =
1872 1873 1874 1875
		mwifiex_chan_type_to_sec_chan_offset(
			cfg80211_get_chandef_type(&params->chandef));
	priv->adhoc_channel = ieee80211_frequency_to_channel(
				params->chandef.chan->center_freq);
1876 1877 1878 1879 1880 1881 1882

	wiphy_dbg(wiphy, "info: set ibss band %d, chan %d, chan offset %d\n",
		  config_bands, priv->adhoc_channel, adapter->sec_chan_offset);

	return 0;
}

1883 1884 1885 1886 1887 1888 1889 1890 1891 1892
/*
 * CFG802.11 operation handler to join an IBSS.
 *
 * This function does not work in any mode other than Ad-Hoc, or if
 * a join operation is already in progress.
 */
static int
mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
			   struct cfg80211_ibss_params *params)
{
1893
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1894 1895
	int ret = 0;

1896
	if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
1897 1898 1899 1900 1901 1902
		wiphy_err(wiphy, "request to join ibss received "
				"when station is not in ibss mode\n");
		goto done;
	}

	wiphy_dbg(wiphy, "info: trying to join to %s and bssid %pM\n",
1903
		  (char *) params->ssid, params->bssid);
1904

1905 1906
	mwifiex_set_ibss_params(priv, params);

1907
	ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
1908
				     params->bssid, priv->bss_mode,
1909 1910
				     params->chandef.chan, NULL,
				     params->privacy);
1911
done:
A
Amitkumar Karwar 已提交
1912
	if (!ret) {
1913 1914
		cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid,
				     params->chandef.chan, GFP_KERNEL);
A
Amitkumar Karwar 已提交
1915 1916 1917 1918 1919 1920 1921 1922
		dev_dbg(priv->adapter->dev,
			"info: joined/created adhoc network with bssid"
			" %pM successfully\n", priv->cfg_bssid);
	} else {
		dev_dbg(priv->adapter->dev,
			"info: failed creating/joining adhoc network\n");
	}

1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934
	return ret;
}

/*
 * CFG802.11 operation handler to leave an IBSS.
 *
 * This function does not work if a leave operation is
 * already in progress.
 */
static int
mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
{
1935
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1936 1937

	wiphy_dbg(wiphy, "info: disconnecting from essid %pM\n",
1938
		  priv->cfg_bssid);
1939
	if (mwifiex_deauthenticate(priv, NULL))
1940 1941
		return -EFAULT;

A
Amitkumar Karwar 已提交
1942
	memset(priv->cfg_bssid, 0, ETH_ALEN);
1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954

	return 0;
}

/*
 * CFG802.11 operation handler for scan request.
 *
 * This function issues a scan request to the firmware based upon
 * the user specified scan configuration. On successfull completion,
 * it also informs the results.
 */
static int
J
Johannes Berg 已提交
1955
mwifiex_cfg80211_scan(struct wiphy *wiphy,
1956 1957
		      struct cfg80211_scan_request *request)
{
J
Johannes Berg 已提交
1958
	struct net_device *dev = request->wdev->netdev;
1959
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1960
	int i, offset, ret;
A
Amitkumar Karwar 已提交
1961
	struct ieee80211_channel *chan;
1962
	struct ieee_types_header *ie;
1963
	struct mwifiex_user_scan_cfg *user_scan_cfg;
1964 1965 1966

	wiphy_dbg(wiphy, "info: received scan request on %s\n", dev->name);

1967 1968
	if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
	    atomic_read(&priv->wmm.tx_pkts_queued) >=
1969 1970 1971 1972 1973
	    MWIFIEX_MIN_TX_PENDING_TO_CANCEL_SCAN) {
		dev_dbg(priv->adapter->dev, "scan rejected due to traffic\n");
		return -EBUSY;
	}

1974 1975 1976 1977
	/* Block scan request if scan operation or scan cleanup when interface
	 * is disabled is in process
	 */
	if (priv->scan_request || priv->scan_aborting) {
1978 1979 1980 1981
		dev_err(priv->adapter->dev, "cmd: Scan already in process..\n");
		return -EBUSY;
	}

1982 1983
	user_scan_cfg = kzalloc(sizeof(*user_scan_cfg), GFP_KERNEL);
	if (!user_scan_cfg)
A
Amitkumar Karwar 已提交
1984
		return -ENOMEM;
1985

B
Bing Zhao 已提交
1986 1987
	priv->scan_request = request;

1988 1989
	user_scan_cfg->num_ssids = request->n_ssids;
	user_scan_cfg->ssid_list = request->ssids;
1990

A
Avinash Patil 已提交
1991
	if (request->ie && request->ie_len) {
1992
		offset = 0;
A
Avinash Patil 已提交
1993 1994 1995 1996
		for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
			if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
				continue;
			priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN;
1997 1998 1999 2000 2001 2002
			ie = (struct ieee_types_header *)(request->ie + offset);
			memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
			offset += sizeof(*ie) + ie->len;

			if (offset >= request->ie_len)
				break;
A
Avinash Patil 已提交
2003 2004 2005
		}
	}

2006 2007
	for (i = 0; i < min_t(u32, request->n_channels,
			      MWIFIEX_USER_SCAN_CHAN_MAX); i++) {
A
Amitkumar Karwar 已提交
2008
		chan = request->channels[i];
2009 2010
		user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
		user_scan_cfg->chan_list[i].radio_type = chan->band;
A
Amitkumar Karwar 已提交
2011

2012
		if (chan->flags & IEEE80211_CHAN_NO_IR)
2013
			user_scan_cfg->chan_list[i].scan_type =
2014
						MWIFIEX_SCAN_TYPE_PASSIVE;
A
Amitkumar Karwar 已提交
2015
		else
2016
			user_scan_cfg->chan_list[i].scan_type =
2017
						MWIFIEX_SCAN_TYPE_ACTIVE;
A
Amitkumar Karwar 已提交
2018

2019
		user_scan_cfg->chan_list[i].scan_time = 0;
A
Amitkumar Karwar 已提交
2020
	}
2021

2022 2023
	ret = mwifiex_scan_networks(priv, user_scan_cfg);
	kfree(user_scan_cfg);
2024 2025
	if (ret) {
		dev_err(priv->adapter->dev, "scan failed: %d\n", ret);
2026
		priv->scan_aborting = false;
B
Bing Zhao 已提交
2027
		priv->scan_request = NULL;
2028 2029
		return ret;
	}
A
Amitkumar Karwar 已提交
2030

A
Avinash Patil 已提交
2031 2032 2033 2034 2035 2036 2037 2038 2039
	if (request->ie && request->ie_len) {
		for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
			if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) {
				priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR;
				memset(&priv->vs_ie[i].ie, 0,
				       MWIFIEX_MAX_VSIE_LEN);
			}
		}
	}
2040 2041 2042
	return 0;
}

2043 2044 2045 2046 2047 2048 2049
static void mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap *vht_info,
				   struct mwifiex_private *priv)
{
	struct mwifiex_adapter *adapter = priv->adapter;

	vht_info->vht_supported = true;

Y
Yogesh Ashok Powar 已提交
2050
	vht_info->cap = adapter->hw_dot_11ac_dev_cap;
2051 2052 2053 2054 2055 2056 2057 2058 2059
	/* Update MCS support for VHT */
	vht_info->vht_mcs.rx_mcs_map = cpu_to_le16(
				adapter->hw_dot_11ac_mcs_support & 0xFFFF);
	vht_info->vht_mcs.rx_highest = 0;
	vht_info->vht_mcs.tx_mcs_map = cpu_to_le16(
				adapter->hw_dot_11ac_mcs_support >> 16);
	vht_info->vht_mcs.tx_highest = 0;
}

2060 2061 2062 2063 2064 2065
/*
 * This function sets up the CFG802.11 specific HT capability fields
 * with default values.
 *
 * The following default values are set -
 *      - HT Supported = True
2066 2067 2068
 *      - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
 *      - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
 *      - HT Capabilities supported by firmware
2069 2070 2071 2072 2073 2074 2075 2076 2077 2078 2079 2080 2081
 *      - MCS information, Rx mask = 0xff
 *      - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
 */
static void
mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
		      struct mwifiex_private *priv)
{
	int rx_mcs_supp;
	struct ieee80211_mcs_info mcs_set;
	u8 *mcs = (u8 *)&mcs_set;
	struct mwifiex_adapter *adapter = priv->adapter;

	ht_info->ht_supported = true;
2082 2083
	ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
	ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
2084 2085 2086

	memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));

2087 2088 2089 2090 2091 2092 2093 2094 2095 2096 2097 2098 2099 2100 2101 2102 2103 2104 2105 2106 2107 2108 2109 2110 2111 2112
	/* Fill HT capability information */
	if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
		ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
	else
		ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;

	if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
		ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
	else
		ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;

	if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
		ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
	else
		ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;

	if (ISSUPP_RXSTBC(adapter->hw_dot_11n_dev_cap))
		ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
	else
		ht_info->cap &= ~(3 << IEEE80211_HT_CAP_RX_STBC_SHIFT);

	if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
		ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
	else
		ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;

2113 2114 2115 2116 2117 2118 2119 2120 2121 2122 2123 2124 2125 2126 2127
	if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap))
		ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
	else
		ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD;

	if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap))
		ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT;
	else
		ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT;

	if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap))
		ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING;
	else
		ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING;

2128 2129 2130
	ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
	ht_info->cap |= IEEE80211_HT_CAP_SM_PS;

2131 2132
	rx_mcs_supp = GET_RXMCSSUPP(adapter->user_dev_mcs_support);
	/* Set MCS for 1x1/2x2 */
2133 2134 2135
	memset(mcs, 0xff, rx_mcs_supp);
	/* Clear all the other values */
	memset(&mcs[rx_mcs_supp], 0,
2136
	       sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
2137
	if (priv->bss_mode == NL80211_IFTYPE_STATION ||
2138
	    ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2139 2140 2141 2142 2143 2144 2145 2146
		/* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
		SETHT_MCS32(mcs_set.rx_mask);

	memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));

	ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
}

2147 2148 2149
/*
 *  create a new virtual interface with the given name
 */
2150
struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
2151
					      const char *name,
2152 2153 2154
					      enum nl80211_iftype type,
					      u32 *flags,
					      struct vif_params *params)
2155
{
2156 2157
	struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
	struct mwifiex_private *priv;
2158 2159
	struct net_device *dev;
	void *mdev_priv;
2160
	struct wireless_dev *wdev;
2161 2162

	if (!adapter)
2163
		return ERR_PTR(-EFAULT);
2164 2165 2166 2167 2168

	switch (type) {
	case NL80211_IFTYPE_UNSPECIFIED:
	case NL80211_IFTYPE_STATION:
	case NL80211_IFTYPE_ADHOC:
2169
		priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
2170
		if (priv->bss_mode) {
2171 2172
			wiphy_err(wiphy,
				  "cannot create multiple sta/adhoc ifaces\n");
2173
			return ERR_PTR(-EINVAL);
2174 2175
		}

2176 2177
		wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
		if (!wdev)
2178
			return ERR_PTR(-ENOMEM);
2179 2180 2181 2182 2183

		wdev->wiphy = wiphy;
		priv->wdev = wdev;
		wdev->iftype = NL80211_IFTYPE_STATION;

2184 2185 2186 2187 2188 2189 2190
		if (type == NL80211_IFTYPE_UNSPECIFIED)
			priv->bss_mode = NL80211_IFTYPE_STATION;
		else
			priv->bss_mode = type;

		priv->bss_type = MWIFIEX_BSS_TYPE_STA;
		priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2191
		priv->bss_priority = 0;
2192 2193 2194
		priv->bss_role = MWIFIEX_BSS_ROLE_STA;
		priv->bss_num = 0;

2195 2196 2197 2198 2199 2200
		break;
	case NL80211_IFTYPE_AP:
		priv = adapter->priv[MWIFIEX_BSS_TYPE_UAP];

		if (priv->bss_mode) {
			wiphy_err(wiphy, "Can't create multiple AP interfaces");
2201
			return ERR_PTR(-EINVAL);
2202 2203 2204 2205
		}

		wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
		if (!wdev)
2206
			return ERR_PTR(-ENOMEM);
2207 2208 2209 2210 2211 2212 2213

		priv->wdev = wdev;
		wdev->wiphy = wiphy;
		wdev->iftype = NL80211_IFTYPE_AP;

		priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
		priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2214
		priv->bss_priority = 0;
2215 2216 2217 2218 2219
		priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
		priv->bss_started = 0;
		priv->bss_num = 0;
		priv->bss_mode = type;

S
Stone Piao 已提交
2220 2221 2222 2223 2224 2225 2226 2227 2228 2229 2230 2231 2232 2233 2234 2235 2236 2237 2238
		break;
	case NL80211_IFTYPE_P2P_CLIENT:
		priv = adapter->priv[MWIFIEX_BSS_TYPE_P2P];

		if (priv->bss_mode) {
			wiphy_err(wiphy, "Can't create multiple P2P ifaces");
			return ERR_PTR(-EINVAL);
		}

		wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
		if (!wdev)
			return ERR_PTR(-ENOMEM);

		priv->wdev = wdev;
		wdev->wiphy = wiphy;

		/* At start-up, wpa_supplicant tries to change the interface
		 * to NL80211_IFTYPE_STATION if it is not managed mode.
		 */
2239 2240
		wdev->iftype = NL80211_IFTYPE_P2P_CLIENT;
		priv->bss_mode = NL80211_IFTYPE_P2P_CLIENT;
S
Stone Piao 已提交
2241 2242 2243 2244 2245 2246 2247 2248 2249 2250 2251 2252 2253

		/* Setting bss_type to P2P tells firmware that this interface
		 * is receiving P2P peers found during find phase and doing
		 * action frame handshake.
		 */
		priv->bss_type = MWIFIEX_BSS_TYPE_P2P;

		priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
		priv->bss_priority = MWIFIEX_BSS_ROLE_STA;
		priv->bss_role = MWIFIEX_BSS_ROLE_STA;
		priv->bss_started = 0;
		priv->bss_num = 0;

2254 2255 2256 2257
		if (mwifiex_cfg80211_init_p2p_client(priv)) {
			wdev = ERR_PTR(-EFAULT);
			goto done;
		}
2258

2259 2260 2261
		break;
	default:
		wiphy_err(wiphy, "type not supported\n");
2262
		return ERR_PTR(-EINVAL);
2263 2264
	}

A
Avinash Patil 已提交
2265 2266
	dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name,
			       ether_setup, IEEE80211_NUM_ACS, 1);
2267 2268
	if (!dev) {
		wiphy_err(wiphy, "no memory available for netdevice\n");
2269
		priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2270 2271
		wdev = ERR_PTR(-ENOMEM);
		goto done;
2272 2273
	}

2274 2275 2276 2277
	mwifiex_init_priv_params(priv, dev);
	priv->netdev = dev;

	mwifiex_setup_ht_caps(&wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap, priv);
2278 2279 2280
	if (adapter->is_hw_11ac_capable)
		mwifiex_setup_vht_caps(
			&wiphy->bands[IEEE80211_BAND_2GHZ]->vht_cap, priv);
2281 2282 2283 2284 2285

	if (adapter->config_bands & BAND_A)
		mwifiex_setup_ht_caps(
			&wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap, priv);

2286 2287 2288 2289
	if ((adapter->config_bands & BAND_A) && adapter->is_hw_11ac_capable)
		mwifiex_setup_vht_caps(
			&wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap, priv);

2290 2291 2292 2293 2294 2295 2296 2297 2298
	dev_net_set(dev, wiphy_net(wiphy));
	dev->ieee80211_ptr = priv->wdev;
	dev->ieee80211_ptr->iftype = priv->bss_mode;
	memcpy(dev->dev_addr, wiphy->perm_addr, ETH_ALEN);
	SET_NETDEV_DEV(dev, wiphy_dev(wiphy));

	dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
	dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
	dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
2299
	dev->ethtool_ops = &mwifiex_ethtool_ops;
2300 2301 2302 2303 2304 2305 2306 2307 2308

	mdev_priv = netdev_priv(dev);
	*((unsigned long *) mdev_priv) = (unsigned long) priv;

	SET_NETDEV_DEV(dev, adapter->dev);

	/* Register network device */
	if (register_netdevice(dev)) {
		wiphy_err(wiphy, "cannot register virtual network device\n");
2309 2310
		free_netdev(dev);
		priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2311 2312 2313
		priv->netdev = NULL;
		wdev = ERR_PTR(-EFAULT);
		goto done;
2314 2315 2316 2317 2318 2319 2320 2321 2322
	}

	sema_init(&priv->async_sem, 1);

	dev_dbg(adapter->dev, "info: %s: Marvell 802.11 Adapter\n", dev->name);

#ifdef CONFIG_DEBUG_FS
	mwifiex_dev_debugfs_init(priv);
#endif
2323 2324 2325 2326 2327 2328 2329

done:
	if (IS_ERR(wdev)) {
		kfree(priv->wdev);
		priv->wdev = NULL;
	}

2330
	return wdev;
2331 2332 2333 2334 2335 2336
}
EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);

/*
 * del_virtual_intf: remove the virtual interface determined by dev
 */
2337
int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
2338
{
2339
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
2340 2341 2342 2343 2344

#ifdef CONFIG_DEBUG_FS
	mwifiex_dev_debugfs_remove(priv);
#endif

A
Avinash Patil 已提交
2345
	mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
2346 2347 2348 2349

	if (netif_carrier_ok(priv->netdev))
		netif_carrier_off(priv->netdev);

2350 2351
	if (wdev->netdev->reg_state == NETREG_REGISTERED)
		unregister_netdevice(wdev->netdev);
2352 2353

	/* Clear the priv in adapter */
2354
	priv->netdev->ieee80211_ptr = NULL;
2355
	priv->netdev = NULL;
2356 2357
	kfree(wdev);
	priv->wdev = NULL;
2358 2359 2360 2361 2362 2363 2364 2365 2366

	priv->media_connected = false;

	priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;

	return 0;
}
EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf);

A
Amitkumar Karwar 已提交
2367
static bool
2368 2369
mwifiex_is_pattern_supported(struct cfg80211_pkt_pattern *pat, s8 *byte_seq,
			     u8 max_byte_seq)
A
Amitkumar Karwar 已提交
2370 2371 2372 2373 2374 2375 2376 2377 2378 2379 2380 2381 2382 2383 2384 2385 2386
{
	int j, k, valid_byte_cnt = 0;
	bool dont_care_byte = false;

	for (j = 0; j < DIV_ROUND_UP(pat->pattern_len, 8); j++) {
		for (k = 0; k < 8; k++) {
			if (pat->mask[j] & 1 << k) {
				memcpy(byte_seq + valid_byte_cnt,
				       &pat->pattern[j * 8 + k], 1);
				valid_byte_cnt++;
				if (dont_care_byte)
					return false;
			} else {
				if (valid_byte_cnt)
					dont_care_byte = true;
			}

2387
			if (valid_byte_cnt > max_byte_seq)
A
Amitkumar Karwar 已提交
2388 2389 2390 2391
				return false;
		}
	}

2392
	byte_seq[max_byte_seq] = valid_byte_cnt;
A
Amitkumar Karwar 已提交
2393 2394 2395 2396

	return true;
}

2397
#ifdef CONFIG_PM
A
Amitkumar Karwar 已提交
2398 2399 2400 2401 2402 2403 2404 2405
static int mwifiex_cfg80211_suspend(struct wiphy *wiphy,
				    struct cfg80211_wowlan *wowlan)
{
	struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
	struct mwifiex_ds_mef_cfg mef_cfg;
	struct mwifiex_mef_entry *mef_entry;
	int i, filt_num = 0, ret;
	bool first_pat = true;
A
Amitkumar Karwar 已提交
2406
	u8 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ + 1];
A
Amitkumar Karwar 已提交
2407 2408 2409 2410 2411 2412 2413 2414 2415 2416 2417 2418 2419 2420 2421 2422
	const u8 ipv4_mc_mac[] = {0x33, 0x33};
	const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
	struct mwifiex_private *priv =
			mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);

	if (!wowlan) {
		dev_warn(adapter->dev, "None of the WOWLAN triggers enabled\n");
		return 0;
	}

	if (!priv->media_connected) {
		dev_warn(adapter->dev,
			 "Can not configure WOWLAN in disconnected state\n");
		return 0;
	}

2423 2424 2425 2426
	mef_entry = kzalloc(sizeof(*mef_entry), GFP_KERNEL);
	if (!mef_entry)
		return -ENOMEM;

A
Amitkumar Karwar 已提交
2427 2428 2429 2430 2431 2432 2433 2434 2435
	memset(&mef_cfg, 0, sizeof(mef_cfg));
	mef_cfg.num_entries = 1;
	mef_cfg.mef_entry = mef_entry;
	mef_entry->mode = MEF_MODE_HOST_SLEEP;
	mef_entry->action = MEF_ACTION_ALLOW_AND_WAKEUP_HOST;

	for (i = 0; i < wowlan->n_patterns; i++) {
		memset(byte_seq, 0, sizeof(byte_seq));
		if (!mwifiex_is_pattern_supported(&wowlan->patterns[i],
2436 2437
						  byte_seq,
						  MWIFIEX_MEF_MAX_BYTESEQ)) {
A
Amitkumar Karwar 已提交
2438 2439 2440 2441 2442 2443 2444
			wiphy_err(wiphy, "Pattern not supported\n");
			kfree(mef_entry);
			return -EOPNOTSUPP;
		}

		if (!wowlan->patterns[i].pkt_offset) {
			if (!(byte_seq[0] & 0x01) &&
A
Amitkumar Karwar 已提交
2445
			    (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 1)) {
A
Amitkumar Karwar 已提交
2446 2447 2448 2449 2450 2451
				mef_cfg.criteria |= MWIFIEX_CRITERIA_UNICAST;
				continue;
			} else if (is_broadcast_ether_addr(byte_seq)) {
				mef_cfg.criteria |= MWIFIEX_CRITERIA_BROADCAST;
				continue;
			} else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
A
Amitkumar Karwar 已提交
2452
				    (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 2)) ||
A
Amitkumar Karwar 已提交
2453
				   (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
A
Amitkumar Karwar 已提交
2454
				    (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 3))) {
A
Amitkumar Karwar 已提交
2455 2456 2457 2458 2459 2460 2461 2462 2463 2464 2465 2466 2467 2468 2469 2470 2471 2472 2473 2474 2475 2476 2477 2478 2479
				mef_cfg.criteria |= MWIFIEX_CRITERIA_MULTICAST;
				continue;
			}
		}

		mef_entry->filter[filt_num].repeat = 1;
		mef_entry->filter[filt_num].offset =
						wowlan->patterns[i].pkt_offset;
		memcpy(mef_entry->filter[filt_num].byte_seq, byte_seq,
		       sizeof(byte_seq));
		mef_entry->filter[filt_num].filt_type = TYPE_EQ;

		if (first_pat)
			first_pat = false;
		else
			mef_entry->filter[filt_num].filt_action = TYPE_AND;

		filt_num++;
	}

	if (wowlan->magic_pkt) {
		mef_cfg.criteria |= MWIFIEX_CRITERIA_UNICAST;
		mef_entry->filter[filt_num].repeat = 16;
		memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
		       ETH_ALEN);
A
Amitkumar Karwar 已提交
2480 2481
		mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
								ETH_ALEN;
2482
		mef_entry->filter[filt_num].offset = 28;
A
Amitkumar Karwar 已提交
2483 2484 2485 2486 2487 2488 2489 2490 2491 2492
		mef_entry->filter[filt_num].filt_type = TYPE_EQ;
		if (filt_num)
			mef_entry->filter[filt_num].filt_action = TYPE_OR;
	}

	if (!mef_cfg.criteria)
		mef_cfg.criteria = MWIFIEX_CRITERIA_BROADCAST |
				   MWIFIEX_CRITERIA_UNICAST |
				   MWIFIEX_CRITERIA_MULTICAST;

2493 2494
	ret = mwifiex_send_cmd(priv, HostCmd_CMD_MEF_CFG,
			       HostCmd_ACT_GEN_SET, 0, &mef_cfg, true);
A
Amitkumar Karwar 已提交
2495 2496 2497 2498 2499 2500 2501 2502 2503 2504 2505 2506 2507 2508 2509 2510 2511 2512 2513

	kfree(mef_entry);
	return ret;
}

static int mwifiex_cfg80211_resume(struct wiphy *wiphy)
{
	return 0;
}

static void mwifiex_cfg80211_set_wakeup(struct wiphy *wiphy,
				       bool enabled)
{
	struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);

	device_set_wakeup_enable(adapter->dev, enabled);
}
#endif

2514 2515 2516 2517 2518 2519 2520 2521 2522 2523 2524 2525 2526 2527 2528 2529 2530 2531 2532 2533 2534 2535 2536 2537 2538 2539 2540 2541 2542 2543 2544 2545 2546 2547 2548 2549 2550 2551 2552 2553 2554 2555 2556 2557 2558 2559 2560 2561 2562 2563 2564 2565 2566 2567 2568 2569 2570 2571 2572 2573 2574 2575 2576 2577 2578 2579 2580 2581 2582 2583 2584 2585 2586 2587 2588 2589 2590 2591 2592 2593 2594 2595 2596 2597 2598 2599 2600 2601 2602 2603 2604 2605
static int mwifiex_get_coalesce_pkt_type(u8 *byte_seq)
{
	const u8 ipv4_mc_mac[] = {0x33, 0x33};
	const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
	const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff};

	if ((byte_seq[0] & 0x01) &&
	    (byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 1))
		return PACKET_TYPE_UNICAST;
	else if (!memcmp(byte_seq, bc_mac, 4))
		return PACKET_TYPE_BROADCAST;
	else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
		  byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 2) ||
		 (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
		  byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 3))
		return PACKET_TYPE_MULTICAST;

	return 0;
}

static int
mwifiex_fill_coalesce_rule_info(struct mwifiex_private *priv,
				struct cfg80211_coalesce_rules *crule,
				struct mwifiex_coalesce_rule *mrule)
{
	u8 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ + 1];
	struct filt_field_param *param;
	int i;

	mrule->max_coalescing_delay = crule->delay;

	param = mrule->params;

	for (i = 0; i < crule->n_patterns; i++) {
		memset(byte_seq, 0, sizeof(byte_seq));
		if (!mwifiex_is_pattern_supported(&crule->patterns[i],
						  byte_seq,
						MWIFIEX_COALESCE_MAX_BYTESEQ)) {
			dev_err(priv->adapter->dev, "Pattern not supported\n");
			return -EOPNOTSUPP;
		}

		if (!crule->patterns[i].pkt_offset) {
			u8 pkt_type;

			pkt_type = mwifiex_get_coalesce_pkt_type(byte_seq);
			if (pkt_type && mrule->pkt_type) {
				dev_err(priv->adapter->dev,
					"Multiple packet types not allowed\n");
				return -EOPNOTSUPP;
			} else if (pkt_type) {
				mrule->pkt_type = pkt_type;
				continue;
			}
		}

		if (crule->condition == NL80211_COALESCE_CONDITION_MATCH)
			param->operation = RECV_FILTER_MATCH_TYPE_EQ;
		else
			param->operation = RECV_FILTER_MATCH_TYPE_NE;

		param->operand_len = byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ];
		memcpy(param->operand_byte_stream, byte_seq,
		       param->operand_len);
		param->offset = crule->patterns[i].pkt_offset;
		param++;

		mrule->num_of_fields++;
	}

	if (!mrule->pkt_type) {
		dev_err(priv->adapter->dev,
			"Packet type can not be determined\n");
		return -EOPNOTSUPP;
	}

	return 0;
}

static int mwifiex_cfg80211_set_coalesce(struct wiphy *wiphy,
					 struct cfg80211_coalesce *coalesce)
{
	struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
	int i, ret;
	struct mwifiex_ds_coalesce_cfg coalesce_cfg;
	struct mwifiex_private *priv =
			mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);

	memset(&coalesce_cfg, 0, sizeof(coalesce_cfg));
	if (!coalesce) {
		dev_dbg(adapter->dev,
			"Disable coalesce and reset all previous rules\n");
2606 2607 2608
		return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
					HostCmd_ACT_GEN_SET, 0,
					&coalesce_cfg, true);
2609 2610 2611 2612 2613 2614 2615 2616 2617 2618 2619 2620 2621 2622
	}

	coalesce_cfg.num_of_rules = coalesce->n_rules;
	for (i = 0; i < coalesce->n_rules; i++) {
		ret = mwifiex_fill_coalesce_rule_info(priv, &coalesce->rules[i],
						      &coalesce_cfg.rule[i]);
		if (ret) {
			dev_err(priv->adapter->dev,
				"Recheck the patterns provided for rule %d\n",
				i + 1);
			return ret;
		}
	}

2623 2624
	return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
				HostCmd_ACT_GEN_SET, 0, &coalesce_cfg, true);
2625 2626
}

2627 2628 2629 2630 2631 2632
/* cfg80211 ops handler for tdls_mgmt.
 * Function prepares TDLS action frame packets and forwards them to FW
 */
static int
mwifiex_cfg80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
			   u8 *peer, u8 action_code, u8 dialog_token,
2633 2634
			   u16 status_code, u32 peer_capability,
			   const u8 *extra_ies, size_t extra_ies_len)
2635 2636 2637 2638 2639 2640 2641 2642 2643 2644 2645 2646 2647 2648 2649 2650 2651 2652 2653 2654 2655 2656 2657 2658 2659 2660 2661 2662 2663 2664 2665 2666 2667 2668 2669 2670 2671 2672 2673 2674 2675 2676 2677 2678 2679 2680 2681 2682 2683 2684 2685 2686 2687 2688 2689 2690 2691 2692 2693 2694 2695 2696 2697 2698 2699 2700 2701
{
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
	int ret;

	if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
		return -ENOTSUPP;

	/* make sure we are in station mode and connected */
	if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
		return -ENOTSUPP;

	switch (action_code) {
	case WLAN_TDLS_SETUP_REQUEST:
		dev_dbg(priv->adapter->dev,
			"Send TDLS Setup Request to %pM status_code=%d\n", peer,
			 status_code);
		ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
						   dialog_token, status_code,
						   extra_ies, extra_ies_len);
		break;
	case WLAN_TDLS_SETUP_RESPONSE:
		dev_dbg(priv->adapter->dev,
			"Send TDLS Setup Response to %pM status_code=%d\n",
			peer, status_code);
		ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
						   dialog_token, status_code,
						   extra_ies, extra_ies_len);
		break;
	case WLAN_TDLS_SETUP_CONFIRM:
		dev_dbg(priv->adapter->dev,
			"Send TDLS Confirm to %pM status_code=%d\n", peer,
			status_code);
		ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
						   dialog_token, status_code,
						   extra_ies, extra_ies_len);
		break;
	case WLAN_TDLS_TEARDOWN:
		dev_dbg(priv->adapter->dev, "Send TDLS Tear down to %pM\n",
			peer);
		ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
						   dialog_token, status_code,
						   extra_ies, extra_ies_len);
		break;
	case WLAN_TDLS_DISCOVERY_REQUEST:
		dev_dbg(priv->adapter->dev,
			"Send TDLS Discovery Request to %pM\n", peer);
		ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
						   dialog_token, status_code,
						   extra_ies, extra_ies_len);
		break;
	case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
		dev_dbg(priv->adapter->dev,
			"Send TDLS Discovery Response to %pM\n", peer);
		ret = mwifiex_send_tdls_action_frame(priv, peer, action_code,
						   dialog_token, status_code,
						   extra_ies, extra_ies_len);
		break;
	default:
		dev_warn(priv->adapter->dev,
			 "Unknown TDLS mgmt/action frame %pM\n", peer);
		ret = -EINVAL;
		break;
	}

	return ret;
}

2702 2703 2704 2705 2706 2707 2708 2709 2710 2711 2712 2713 2714 2715 2716 2717 2718 2719 2720 2721 2722 2723 2724 2725 2726 2727 2728 2729 2730 2731 2732 2733 2734 2735 2736 2737 2738 2739 2740 2741 2742 2743 2744 2745 2746 2747 2748 2749
static int
mwifiex_cfg80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
			   u8 *peer, enum nl80211_tdls_operation action)
{
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);

	if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
	    !(wiphy->flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
		return -ENOTSUPP;

	/* make sure we are in station mode and connected */
	if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
		return -ENOTSUPP;

	dev_dbg(priv->adapter->dev,
		"TDLS peer=%pM, oper=%d\n", peer, action);

	switch (action) {
	case NL80211_TDLS_ENABLE_LINK:
		action = MWIFIEX_TDLS_ENABLE_LINK;
		break;
	case NL80211_TDLS_DISABLE_LINK:
		action = MWIFIEX_TDLS_DISABLE_LINK;
		break;
	case NL80211_TDLS_TEARDOWN:
		/* shouldn't happen!*/
		dev_warn(priv->adapter->dev,
			 "tdls_oper: teardown from driver not supported\n");
		return -EINVAL;
	case NL80211_TDLS_SETUP:
		/* shouldn't happen!*/
		dev_warn(priv->adapter->dev,
			 "tdls_oper: setup from driver not supported\n");
		return -EINVAL;
	case NL80211_TDLS_DISCOVERY_REQ:
		/* shouldn't happen!*/
		dev_warn(priv->adapter->dev,
			 "tdls_oper: discovery from driver not supported\n");
		return -EINVAL;
	default:
		dev_err(priv->adapter->dev,
			"tdls_oper: operation not supported\n");
		return -ENOTSUPP;
	}

	return mwifiex_tdls_oper(priv, peer, action);
}

2750 2751 2752 2753 2754 2755 2756 2757 2758 2759 2760 2761 2762 2763 2764 2765 2766
static int
mwifiex_cfg80211_add_station(struct wiphy *wiphy,
			     struct net_device *dev,
			     u8 *mac, struct station_parameters *params)
{
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);

	if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
		return -ENOTSUPP;

	/* make sure we are in station mode and connected */
	if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
		return -ENOTSUPP;

	return mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CREATE_LINK);
}

2767 2768 2769 2770 2771 2772 2773 2774 2775 2776 2777 2778 2779 2780 2781 2782 2783 2784 2785 2786 2787 2788 2789 2790
static int
mwifiex_cfg80211_change_station(struct wiphy *wiphy,
				struct net_device *dev,
				u8 *mac, struct station_parameters *params)
{
	int ret;
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);

	/* we support change_station handler only for TDLS peers*/
	if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
		return -ENOTSUPP;

	/* make sure we are in station mode and connected */
	if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
		return -ENOTSUPP;

	priv->sta_params = params;

	ret = mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CONFIG_LINK);
	priv->sta_params = NULL;

	return ret;
}

2791 2792
/* station cfg80211 operations */
static struct cfg80211_ops mwifiex_cfg80211_ops = {
2793 2794
	.add_virtual_intf = mwifiex_add_virtual_intf,
	.del_virtual_intf = mwifiex_del_virtual_intf,
2795 2796 2797 2798 2799
	.change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
	.scan = mwifiex_cfg80211_scan,
	.connect = mwifiex_cfg80211_connect,
	.disconnect = mwifiex_cfg80211_disconnect,
	.get_station = mwifiex_cfg80211_get_station,
2800
	.dump_station = mwifiex_cfg80211_dump_station,
2801 2802 2803 2804 2805
	.set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
	.join_ibss = mwifiex_cfg80211_join_ibss,
	.leave_ibss = mwifiex_cfg80211_leave_ibss,
	.add_key = mwifiex_cfg80211_add_key,
	.del_key = mwifiex_cfg80211_del_key,
2806
	.mgmt_tx = mwifiex_cfg80211_mgmt_tx,
2807
	.mgmt_frame_register = mwifiex_cfg80211_mgmt_frame_register,
2808 2809
	.remain_on_channel = mwifiex_cfg80211_remain_on_channel,
	.cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel,
2810 2811 2812
	.set_default_key = mwifiex_cfg80211_set_default_key,
	.set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
	.set_tx_power = mwifiex_cfg80211_set_tx_power,
2813
	.set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
2814 2815
	.start_ap = mwifiex_cfg80211_start_ap,
	.stop_ap = mwifiex_cfg80211_stop_ap,
2816
	.change_beacon = mwifiex_cfg80211_change_beacon,
2817
	.set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config,
2818
	.set_antenna = mwifiex_cfg80211_set_antenna,
A
Avinash Patil 已提交
2819
	.del_station = mwifiex_cfg80211_del_station,
A
Amitkumar Karwar 已提交
2820 2821 2822 2823 2824
#ifdef CONFIG_PM
	.suspend = mwifiex_cfg80211_suspend,
	.resume = mwifiex_cfg80211_resume,
	.set_wakeup = mwifiex_cfg80211_set_wakeup,
#endif
2825
	.set_coalesce = mwifiex_cfg80211_set_coalesce,
2826
	.tdls_mgmt = mwifiex_cfg80211_tdls_mgmt,
2827
	.tdls_oper = mwifiex_cfg80211_tdls_oper,
2828
	.add_station = mwifiex_cfg80211_add_station,
2829
	.change_station = mwifiex_cfg80211_change_station,
2830 2831
};

2832 2833 2834
#ifdef CONFIG_PM
static const struct wiphy_wowlan_support mwifiex_wowlan_support = {
	.flags = WIPHY_WOWLAN_MAGIC_PKT,
A
Amitkumar Karwar 已提交
2835
	.n_patterns = MWIFIEX_MEF_MAX_FILTERS,
2836 2837 2838 2839 2840 2841
	.pattern_min_len = 1,
	.pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
	.max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
};
#endif

2842 2843 2844 2845 2846 2847 2848 2849 2850 2851 2852
static bool mwifiex_is_valid_alpha2(const char *alpha2)
{
	if (!alpha2 || strlen(alpha2) != 2)
		return false;

	if (isalpha(alpha2[0]) && isalpha(alpha2[1]))
		return true;

	return false;
}

2853 2854 2855 2856 2857 2858 2859 2860 2861
static const struct wiphy_coalesce_support mwifiex_coalesce_support = {
	.n_rules = MWIFIEX_COALESCE_MAX_RULES,
	.max_delay = MWIFIEX_MAX_COALESCING_DELAY,
	.n_patterns = MWIFIEX_COALESCE_MAX_FILTERS,
	.pattern_min_len = 1,
	.pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
	.max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
};

2862 2863 2864 2865 2866 2867 2868
/*
 * This function registers the device with CFG802.11 subsystem.
 *
 * The function creates the wireless device/wiphy, populates it with
 * default parameters and handler function pointers, and finally
 * registers the device.
 */
2869 2870

int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
2871
{
2872 2873
	int ret;
	void *wdev_priv;
2874 2875
	struct wiphy *wiphy;
	struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
2876
	u8 *country_code;
2877
	u32 thr, retry;
2878

2879 2880 2881 2882 2883
	/* create a new wiphy for use with cfg80211 */
	wiphy = wiphy_new(&mwifiex_cfg80211_ops,
			  sizeof(struct mwifiex_adapter *));
	if (!wiphy) {
		dev_err(adapter->dev, "%s: creating new wiphy\n", __func__);
2884 2885
		return -ENOMEM;
	}
2886 2887
	wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
	wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
2888
	wiphy->mgmt_stypes = mwifiex_mgmt_stypes;
2889
	wiphy->max_remain_on_channel_duration = 5000;
2890 2891
	wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
				 BIT(NL80211_IFTYPE_ADHOC) |
S
Stone Piao 已提交
2892 2893
				 BIT(NL80211_IFTYPE_P2P_CLIENT) |
				 BIT(NL80211_IFTYPE_P2P_GO) |
2894 2895 2896 2897 2898 2899 2900
				 BIT(NL80211_IFTYPE_AP);

	wiphy->bands[IEEE80211_BAND_2GHZ] = &mwifiex_band_2ghz;
	if (adapter->config_bands & BAND_A)
		wiphy->bands[IEEE80211_BAND_5GHZ] = &mwifiex_band_5ghz;
	else
		wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
2901

2902 2903 2904
	wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta;
	wiphy->n_iface_combinations = 1;

2905
	/* Initialize cipher suits */
2906 2907
	wiphy->cipher_suites = mwifiex_cipher_suites;
	wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
2908

2909 2910
	memcpy(wiphy->perm_addr, priv->curr_addr, ETH_ALEN);
	wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
2911
	wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
2912
			WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD |
2913
			WIPHY_FLAG_AP_UAPSD |
2914
			WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
2915 2916 2917 2918 2919

	if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info))
		wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
				WIPHY_FLAG_TDLS_EXTERNAL_SETUP;

2920 2921 2922
	wiphy->regulatory_flags |=
			REGULATORY_CUSTOM_REG |
			REGULATORY_STRICT_REG;
2923 2924

	wiphy_apply_custom_regulatory(wiphy, &mwifiex_world_regdom_custom);
2925

A
Amitkumar Karwar 已提交
2926
#ifdef CONFIG_PM
2927
	wiphy->wowlan = &mwifiex_wowlan_support;
A
Amitkumar Karwar 已提交
2928 2929
#endif

2930 2931
	wiphy->coalesce = &mwifiex_coalesce_support;

2932
	wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
2933 2934
				    NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
				    NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
2935

2936 2937
	wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1;
	wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1;
2938

2939
	wiphy->features |= NL80211_FEATURE_HT_IBSS |
2940
			   NL80211_FEATURE_INACTIVITY_TIMER |
2941 2942
			   NL80211_FEATURE_LOW_PRIORITY_SCAN |
			   NL80211_FEATURE_NEED_OBSS_SCAN;
2943

2944
	/* Reserve space for mwifiex specific private data for BSS */
2945
	wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv);
2946

2947
	wiphy->reg_notifier = mwifiex_reg_notifier;
2948

2949
	/* Set struct mwifiex_adapter pointer in wiphy_priv */
2950
	wdev_priv = wiphy_priv(wiphy);
2951
	*(unsigned long *)wdev_priv = (unsigned long)adapter;
2952

2953
	set_wiphy_dev(wiphy, priv->adapter->dev);
2954

2955
	ret = wiphy_register(wiphy);
2956
	if (ret < 0) {
2957 2958 2959
		dev_err(adapter->dev,
			"%s: wiphy_register failed: %d\n", __func__, ret);
		wiphy_free(wiphy);
2960 2961
		return ret;
	}
2962 2963 2964 2965 2966 2967 2968 2969 2970 2971

	if (reg_alpha2 && mwifiex_is_valid_alpha2(reg_alpha2)) {
		wiphy_info(wiphy, "driver hint alpha2: %2.2s\n", reg_alpha2);
		regulatory_hint(wiphy, reg_alpha2);
	} else {
		country_code = mwifiex_11d_code_2_region(adapter->region_code);
		if (country_code)
			wiphy_info(wiphy, "ignoring F/W country code %2.2s\n",
				   country_code);
	}
2972

2973 2974
	mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
			 HostCmd_ACT_GEN_GET, FRAG_THRESH_I, &thr, true);
2975
	wiphy->frag_threshold = thr;
2976 2977
	mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
			 HostCmd_ACT_GEN_GET, RTS_THRESH_I, &thr, true);
2978
	wiphy->rts_threshold = thr;
2979 2980
	mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
			 HostCmd_ACT_GEN_GET, SHORT_RETRY_LIM_I, &retry, true);
2981
	wiphy->retry_short = (u8) retry;
2982 2983
	mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
			 HostCmd_ACT_GEN_GET, LONG_RETRY_LIM_I, &retry, true);
2984 2985
	wiphy->retry_long = (u8) retry;

2986
	adapter->wiphy = wiphy;
2987 2988
	return ret;
}