cfg80211.c 119.1 KB
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/*
 * Marvell Wireless LAN device driver: CFG80211
 *
X
Xinming Hu 已提交
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 * Copyright (C) 2011-2014, Marvell International Ltd.
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 *
 * 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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#include "11n.h"
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#include "wmm.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 = 3, .types = BIT(NL80211_IFTYPE_STATION) |
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				   BIT(NL80211_IFTYPE_P2P_GO) |
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				   BIT(NL80211_IFTYPE_P2P_CLIENT) |
				   BIT(NL80211_IFTYPE_AP),
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	},
};

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static const struct ieee80211_iface_combination
mwifiex_iface_comb_ap_sta = {
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	.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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	.radar_detect_widths =	BIT(NL80211_CHAN_WIDTH_20_NOHT) |
				BIT(NL80211_CHAN_WIDTH_20) |
				BIT(NL80211_CHAN_WIDTH_40),
};

static const struct ieee80211_iface_combination
mwifiex_iface_comb_ap_sta_vht = {
	.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,
	.radar_detect_widths =	BIT(NL80211_CHAN_WIDTH_20_NOHT) |
				BIT(NL80211_CHAN_WIDTH_20) |
				BIT(NL80211_CHAN_WIDTH_40) |
				BIT(NL80211_CHAN_WIDTH_80),
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};

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static const struct
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ieee80211_iface_combination mwifiex_iface_comb_ap_sta_drcs = {
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	.limits = mwifiex_ap_sta_limits,
	.num_different_channels = 2,
	.n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
	.max_interfaces = MWIFIEX_MAX_BSS_NUM,
	.beacon_int_infra_match = true,
};

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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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	}
}

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/* This function maps IEEE HT secondary channel type to NL80211 channel type
 */
u8 mwifiex_sec_chan_offset_to_chan_type(u8 second_chan_offset)
{
	switch (second_chan_offset) {
	case IEEE80211_HT_PARAM_CHA_SEC_NONE:
		return NL80211_CHAN_HT20;
	case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
		return NL80211_CHAN_HT40PLUS;
	case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
		return NL80211_CHAN_HT40MINUS;
	default:
		return NL80211_CHAN_HT20;
	}
}

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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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		mwifiex_dbg(priv->adapter, ERROR, "deleting the crypto keys\n");
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		return -EFAULT;
	}

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	mwifiex_dbg(priv->adapter, INFO, "info: crypto keys deleted\n");
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	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;

	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;
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	__net_timestamp(skb);
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	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) {
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		mwifiex_dbg(priv->adapter, ERROR, "invalid buffer and length\n");
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		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 */
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		mwifiex_dbg(priv->adapter, INFO,
			    "info: skip to send probe resp in AP or GO mode\n");
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		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) {
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		mwifiex_dbg(priv->adapter, ERROR,
			    "allocate skb failed for management frame\n");
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		return -ENOMEM;
	}

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	tx_info = MWIFIEX_SKB_TXCB(skb);
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	memset(tx_info, 0, sizeof(*tx_info));
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	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);
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	*cookie = prandom_u32() | 1;
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	if (ieee80211_is_action(mgmt->frame_control))
		skb = mwifiex_clone_skb_for_tx_status(priv,
						      skb,
				MWIFIEX_BUF_FLAG_ACTION_TX_STATUS, cookie);
	else
		cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true,
					GFP_ATOMIC);

	mwifiex_queue_tx_pkt(priv, skb);
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	mwifiex_dbg(priv->adapter, INFO, "info: management frame transmitted\n");
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	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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		mwifiex_dbg(priv->adapter, INFO, "info: mgmt frame registered\n");
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	}
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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) {
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		mwifiex_dbg(priv->adapter, ERROR, "Invalid parameter for ROC\n");
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		return -EINVAL;
	}

	if (priv->roc_cfg.cookie) {
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		mwifiex_dbg(priv->adapter, INFO,
			    "info: ongoing ROC, cookie = 0x%llx\n",
			    priv->roc_cfg.cookie);
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		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);

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		mwifiex_dbg(priv->adapter, INFO,
			    "info: ROC, cookie = 0x%llx\n", *cookie);
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	}

	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));

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		mwifiex_dbg(priv->adapter, INFO,
			    "info: cancel ROC, cookie = 0x%llx\n", cookie);
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	}

	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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}

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/*
 * CFG802.11 operation handler to get Tx power.
 */
static int
mwifiex_cfg80211_get_tx_power(struct wiphy *wiphy,
			      struct wireless_dev *wdev,
			      int *dbm)
{
	struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
	struct mwifiex_private *priv = mwifiex_get_priv(adapter,
							MWIFIEX_BSS_ROLE_ANY);
	int ret = mwifiex_send_cmd(priv, HostCmd_CMD_RF_TX_PWR,
				   HostCmd_ACT_GEN_GET, 0, NULL, true);

	if (ret < 0)
		return ret;

	/* tx_power_level is set in HostCmd_CMD_RF_TX_PWR command handler */
	*dbm = priv->tx_power_level;

	return 0;
}

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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)
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		mwifiex_dbg(priv->adapter, INFO,
			    "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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		mwifiex_dbg(priv->adapter, ERROR, "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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		mwifiex_dbg(priv->adapter, ERROR, "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)
 */
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int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy)
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{
	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;
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	enum nl80211_band band;
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	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]) {
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		mwifiex_dbg(adapter, ERROR,
			    "11D: setting domain info in FW\n");
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		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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		mwifiex_dbg(adapter, INFO,
			    "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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	mwifiex_dbg(adapter, INFO,
		    "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;
600
	default:
601 602 603
		mwifiex_dbg(adapter, ERROR,
			    "unknown regdom initiator: %d\n",
			    request->initiator);
604 605 606 607 608 609 610 611 612 613
		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);
614
		mwifiex_dnld_txpwr_table(priv);
615 616 617 618 619 620
	}
}

/*
 * This function sets the fragmentation threshold.
 *
621
 * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
622 623 624 625 626
 * and MWIFIEX_FRAG_MAX_VALUE.
 */
static int
mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
{
627 628
	if (frag_thr < MWIFIEX_FRAG_MIN_VALUE ||
	    frag_thr > MWIFIEX_FRAG_MAX_VALUE)
629
		frag_thr = MWIFIEX_FRAG_MAX_VALUE;
630

631 632 633
	return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
				HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
				&frag_thr, true);
634 635 636 637
}

/*
 * This function sets the RTS threshold.
638 639 640

 * The rts value must lie between MWIFIEX_RTS_MIN_VALUE
 * and MWIFIEX_RTS_MAX_VALUE.
641 642 643 644 645 646 647
 */
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;

648 649 650
	return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
				HostCmd_ACT_GEN_SET, RTS_THRESH_I,
				&rts_thr, true);
651 652 653 654 655 656 657 658 659 660 661
}

/*
 * 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)
{
662
	struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
663 664
	struct mwifiex_private *priv;
	struct mwifiex_uap_bss_param *bss_cfg;
665 666 667
	int ret;

	priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
668

669 670 671
	switch (priv->bss_role) {
	case MWIFIEX_BSS_ROLE_UAP:
		if (priv->bss_started) {
672 673
			mwifiex_dbg(adapter, ERROR,
				    "cannot change wiphy params when bss started");
674 675
			return -EINVAL;
		}
676

677 678 679
		bss_cfg = kzalloc(sizeof(*bss_cfg), GFP_KERNEL);
		if (!bss_cfg)
			return -ENOMEM;
680

681
		mwifiex_set_sys_config_invalid_data(bss_cfg);
682

683 684 685 686 687 688
		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;
689

690 691 692 693 694 695 696
		ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_SYS_CONFIG,
				       HostCmd_ACT_GEN_SET,
				       UAP_BSS_PARAMS_I, bss_cfg,
				       false);

		kfree(bss_cfg);
		if (ret) {
697 698
			mwifiex_dbg(adapter, ERROR,
				    "Failed to set wiphy phy params\n");
699 700 701
			return ret;
		}
		break;
702

703
	case MWIFIEX_BSS_ROLE_STA:
704
		if (priv->media_connected) {
705 706
			mwifiex_dbg(adapter, ERROR,
				    "cannot change wiphy params when connected");
707 708 709 710 711 712 713
			return -EINVAL;
		}
		if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
			ret = mwifiex_set_rts(priv,
					      wiphy->rts_threshold);
			if (ret)
				return ret;
714
		}
715 716 717 718 719 720 721
		if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
			ret = mwifiex_set_frag(priv,
					       wiphy->frag_threshold);
			if (ret)
				return ret;
		}
		break;
722 723 724
	}

	return 0;
725 726
}

727 728 729 730 731
static int
mwifiex_cfg80211_deinit_p2p(struct mwifiex_private *priv)
{
	u16 mode = P2P_MODE_DISABLE;

732 733
	if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
			     HostCmd_ACT_GEN_SET, 0, &mode, true))
734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752
		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;
753 754
	if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
			     HostCmd_ACT_GEN_SET, 0, &mode, true))
755 756 757
		return -1;

	mode = P2P_MODE_CLIENT;
758 759
	if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
			     HostCmd_ACT_GEN_SET, 0, &mode, true))
760 761 762 763 764
		return -1;

	return 0;
}

765 766 767 768 769 770 771 772 773 774 775 776 777 778
/*
 * 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;
779 780
	if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
			     HostCmd_ACT_GEN_SET, 0, &mode, true))
781 782 783
		return -1;

	mode = P2P_MODE_GO;
784 785
	if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
			     HostCmd_ACT_GEN_SET, 0, &mode, true))
786 787
		return -1;

788 789 790 791 792
	return 0;
}

static int mwifiex_deinit_priv_params(struct mwifiex_private *priv)
{
793 794 795
	struct mwifiex_adapter *adapter = priv->adapter;
	unsigned long flags;

796 797 798 799
	priv->mgmt_frame_mask = 0;
	if (mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
			     HostCmd_ACT_GEN_SET, 0,
			     &priv->mgmt_frame_mask, false)) {
800 801
		mwifiex_dbg(adapter, ERROR,
			    "could not unregister mgmt frame rx\n");
802 803 804 805
		return -1;
	}

	mwifiex_deauthenticate(priv, NULL);
806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824

	spin_lock_irqsave(&adapter->main_proc_lock, flags);
	adapter->main_locked = true;
	if (adapter->mwifiex_processing) {
		spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
		flush_workqueue(adapter->workqueue);
	} else {
		spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
	}

	spin_lock_irqsave(&adapter->rx_proc_lock, flags);
	adapter->rx_locked = true;
	if (adapter->rx_processing) {
		spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
		flush_workqueue(adapter->rx_workqueue);
	} else {
	spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
	}

825 826 827 828 829 830 831 832 833 834 835 836 837
	mwifiex_free_priv(priv);
	priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
	priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
	priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;

	return 0;
}

static int
mwifiex_init_new_priv_params(struct mwifiex_private *priv,
			     struct net_device *dev,
			     enum nl80211_iftype type)
{
838 839 840
	struct mwifiex_adapter *adapter = priv->adapter;
	unsigned long flags;

841 842 843 844 845 846 847 848 849 850 851
	mwifiex_init_priv(priv);

	priv->bss_mode = type;
	priv->wdev.iftype = type;

	mwifiex_init_priv_params(priv, priv->netdev);
	priv->bss_started = 0;

	switch (type) {
	case NL80211_IFTYPE_STATION:
	case NL80211_IFTYPE_ADHOC:
S
Shengzhen Li 已提交
852 853
		priv->bss_num = mwifiex_get_unused_bss_num(adapter,
			 MWIFIEX_BSS_TYPE_STA);
854 855 856 857
		priv->bss_role =  MWIFIEX_BSS_ROLE_STA;
		priv->bss_type = MWIFIEX_BSS_TYPE_STA;
		break;
	case NL80211_IFTYPE_P2P_CLIENT:
S
Shengzhen Li 已提交
858 859
		priv->bss_num = mwifiex_get_unused_bss_num(adapter,
			 MWIFIEX_BSS_TYPE_P2P);
860 861 862
		priv->bss_role =  MWIFIEX_BSS_ROLE_STA;
		priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
		break;
863
	case NL80211_IFTYPE_P2P_GO:
S
Shengzhen Li 已提交
864 865
		priv->bss_num = mwifiex_get_unused_bss_num(adapter,
			 MWIFIEX_BSS_TYPE_P2P);
866 867 868
		priv->bss_role =  MWIFIEX_BSS_ROLE_UAP;
		priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
		break;
869
	case NL80211_IFTYPE_AP:
S
Shengzhen Li 已提交
870 871
		priv->bss_num = mwifiex_get_unused_bss_num(adapter,
			 MWIFIEX_BSS_TYPE_UAP);
872 873 874 875
		priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
		priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
		break;
	default:
876 877 878
		mwifiex_dbg(adapter, ERROR,
			    "%s: changing to %d not supported\n",
			    dev->name, type);
879 880
		return -EOPNOTSUPP;
	}
881

882 883 884 885 886 887 888 889
	spin_lock_irqsave(&adapter->main_proc_lock, flags);
	adapter->main_locked = false;
	spin_unlock_irqrestore(&adapter->main_proc_lock, flags);

	spin_lock_irqsave(&adapter->rx_proc_lock, flags);
	adapter->rx_locked = false;
	spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);

890 891 892
	return 0;
}

893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910
static int
mwifiex_change_vif_to_p2p(struct net_device *dev,
			  enum nl80211_iftype curr_iftype,
			  enum nl80211_iftype type, u32 *flags,
			  struct vif_params *params)
{
	struct mwifiex_private *priv;
	struct mwifiex_adapter *adapter;

	priv = mwifiex_netdev_get_priv(dev);

	if (!priv)
		return -1;

	adapter = priv->adapter;

	if (adapter->curr_iface_comb.p2p_intf ==
	    adapter->iface_limit.p2p_intf) {
911 912
		mwifiex_dbg(adapter, ERROR,
			    "cannot create multiple P2P ifaces\n");
913 914 915
		return -1;
	}

916 917
	mwifiex_dbg(adapter, INFO,
		    "%s: changing role to p2p\n", dev->name);
918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933

	if (mwifiex_deinit_priv_params(priv))
		return -1;
	if (mwifiex_init_new_priv_params(priv, dev, type))
		return -1;

	switch (type) {
	case NL80211_IFTYPE_P2P_CLIENT:
		if (mwifiex_cfg80211_init_p2p_client(priv))
			return -EFAULT;
		break;
	case NL80211_IFTYPE_P2P_GO:
		if (mwifiex_cfg80211_init_p2p_go(priv))
			return -EFAULT;
		break;
	default:
934 935 936
		mwifiex_dbg(adapter, ERROR,
			    "%s: changing to %d not supported\n",
			    dev->name, type);
937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984
		return -EOPNOTSUPP;
	}

	if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
			     HostCmd_ACT_GEN_SET, 0, NULL, true))
		return -1;

	if (mwifiex_sta_init_cmd(priv, false, false))
		return -1;

	switch (curr_iftype) {
	case NL80211_IFTYPE_STATION:
	case NL80211_IFTYPE_ADHOC:
		adapter->curr_iface_comb.sta_intf--;
		break;
	case NL80211_IFTYPE_AP:
		adapter->curr_iface_comb.uap_intf--;
		break;
	default:
		break;
	}

	adapter->curr_iface_comb.p2p_intf++;
	dev->ieee80211_ptr->iftype = type;

	return 0;
}

static int
mwifiex_change_vif_to_sta_adhoc(struct net_device *dev,
				enum nl80211_iftype curr_iftype,
				enum nl80211_iftype type, u32 *flags,
				struct vif_params *params)
{
	struct mwifiex_private *priv;
	struct mwifiex_adapter *adapter;

	priv = mwifiex_netdev_get_priv(dev);

	if (!priv)
		return -1;

	adapter = priv->adapter;

	if ((curr_iftype != NL80211_IFTYPE_P2P_CLIENT &&
	     curr_iftype != NL80211_IFTYPE_P2P_GO) &&
	    (adapter->curr_iface_comb.sta_intf ==
	     adapter->iface_limit.sta_intf)) {
985 986
		mwifiex_dbg(adapter, ERROR,
			    "cannot create multiple station/adhoc ifaces\n");
987 988 989 990
		return -1;
	}

	if (type == NL80211_IFTYPE_STATION)
991 992
		mwifiex_dbg(adapter, INFO,
			    "%s: changing role to station\n", dev->name);
993
	else
994 995
		mwifiex_dbg(adapter, INFO,
			    "%s: changing role to adhoc\n", dev->name);
996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041

	if (mwifiex_deinit_priv_params(priv))
		return -1;
	if (mwifiex_init_new_priv_params(priv, dev, type))
		return -1;
	if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
			     HostCmd_ACT_GEN_SET, 0, NULL, true))
		return -1;
	if (mwifiex_sta_init_cmd(priv, false, false))
		return -1;

	switch (curr_iftype) {
	case NL80211_IFTYPE_P2P_CLIENT:
	case NL80211_IFTYPE_P2P_GO:
		adapter->curr_iface_comb.p2p_intf--;
		break;
	case NL80211_IFTYPE_AP:
		adapter->curr_iface_comb.uap_intf--;
		break;
	default:
		break;
	}

	adapter->curr_iface_comb.sta_intf++;
	dev->ieee80211_ptr->iftype = type;
	return 0;
}

static int
mwifiex_change_vif_to_ap(struct net_device *dev,
			 enum nl80211_iftype curr_iftype,
			 enum nl80211_iftype type, u32 *flags,
			 struct vif_params *params)
{
	struct mwifiex_private *priv;
	struct mwifiex_adapter *adapter;

	priv = mwifiex_netdev_get_priv(dev);

	if (!priv)
		return -1;

	adapter = priv->adapter;

	if (adapter->curr_iface_comb.uap_intf ==
	    adapter->iface_limit.uap_intf) {
1042 1043
		mwifiex_dbg(adapter, ERROR,
			    "cannot create multiple AP ifaces\n");
1044 1045 1046
		return -1;
	}

1047 1048
	mwifiex_dbg(adapter, INFO,
		    "%s: changing role to AP\n", dev->name);
1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076

	if (mwifiex_deinit_priv_params(priv))
		return -1;
	if (mwifiex_init_new_priv_params(priv, dev, type))
		return -1;
	if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
			     HostCmd_ACT_GEN_SET, 0, NULL, true))
		return -1;
	if (mwifiex_sta_init_cmd(priv, false, false))
		return -1;

	switch (curr_iftype) {
	case NL80211_IFTYPE_P2P_CLIENT:
	case NL80211_IFTYPE_P2P_GO:
		adapter->curr_iface_comb.p2p_intf--;
		break;
	case NL80211_IFTYPE_STATION:
	case NL80211_IFTYPE_ADHOC:
		adapter->curr_iface_comb.sta_intf--;
		break;
	default:
		break;
	}

	adapter->curr_iface_comb.uap_intf++;
	dev->ieee80211_ptr->iftype = type;
	return 0;
}
1077 1078 1079 1080 1081 1082 1083 1084 1085 1086
/*
 * 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)
{
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1087
	enum nl80211_iftype curr_iftype = dev->ieee80211_ptr->iftype;
1088

1089
	switch (curr_iftype) {
1090
	case NL80211_IFTYPE_ADHOC:
1091 1092
		switch (type) {
		case NL80211_IFTYPE_STATION:
1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107
			priv->bss_mode = type;
			priv->sec_info.authentication_mode =
						   NL80211_AUTHTYPE_OPEN_SYSTEM;
			dev->ieee80211_ptr->iftype = type;
			mwifiex_deauthenticate(priv, NULL);
			return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
						HostCmd_ACT_GEN_SET, 0, NULL,
						true);
		case NL80211_IFTYPE_P2P_CLIENT:
		case NL80211_IFTYPE_P2P_GO:
			return mwifiex_change_vif_to_p2p(dev, curr_iftype,
							 type, flags, params);
		case NL80211_IFTYPE_AP:
			return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
							flags, params);
1108
		case NL80211_IFTYPE_UNSPECIFIED:
1109 1110
			mwifiex_dbg(priv->adapter, INFO,
				    "%s: kept type as IBSS\n", dev->name);
1111 1112 1113
		case NL80211_IFTYPE_ADHOC:	/* This shouldn't happen */
			return 0;
		default:
1114 1115 1116
			mwifiex_dbg(priv->adapter, ERROR,
				    "%s: changing to %d not supported\n",
				    dev->name, type);
1117 1118
			return -EOPNOTSUPP;
		}
1119 1120
		break;
	case NL80211_IFTYPE_STATION:
1121 1122
		switch (type) {
		case NL80211_IFTYPE_ADHOC:
1123 1124 1125
			priv->bss_mode = type;
			priv->sec_info.authentication_mode =
						   NL80211_AUTHTYPE_OPEN_SYSTEM;
1126
			dev->ieee80211_ptr->iftype = type;
1127 1128 1129 1130 1131
			mwifiex_deauthenticate(priv, NULL);
			return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
						HostCmd_ACT_GEN_SET, 0, NULL,
						true);
		case NL80211_IFTYPE_P2P_CLIENT:
1132
		case NL80211_IFTYPE_P2P_GO:
1133 1134 1135 1136 1137
			return mwifiex_change_vif_to_p2p(dev, curr_iftype,
							 type, flags, params);
		case NL80211_IFTYPE_AP:
			return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
							flags, params);
1138
		case NL80211_IFTYPE_UNSPECIFIED:
1139 1140
			mwifiex_dbg(priv->adapter, INFO,
				    "%s: kept type as STA\n", dev->name);
1141 1142 1143
		case NL80211_IFTYPE_STATION:	/* This shouldn't happen */
			return 0;
		default:
1144 1145 1146
			mwifiex_dbg(priv->adapter, ERROR,
				    "%s: changing to %d not supported\n",
				    dev->name, type);
1147 1148 1149 1150 1151
			return -EOPNOTSUPP;
		}
		break;
	case NL80211_IFTYPE_AP:
		switch (type) {
1152 1153 1154 1155 1156 1157 1158 1159 1160 1161
		case NL80211_IFTYPE_ADHOC:
		case NL80211_IFTYPE_STATION:
			return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype,
							       type, flags,
							       params);
			break;
		case NL80211_IFTYPE_P2P_CLIENT:
		case NL80211_IFTYPE_P2P_GO:
			return mwifiex_change_vif_to_p2p(dev, curr_iftype,
							 type, flags, params);
1162
		case NL80211_IFTYPE_UNSPECIFIED:
1163 1164
			mwifiex_dbg(priv->adapter, INFO,
				    "%s: kept type as AP\n", dev->name);
1165 1166 1167
		case NL80211_IFTYPE_AP:		/* This shouldn't happen */
			return 0;
		default:
1168 1169 1170
			mwifiex_dbg(priv->adapter, ERROR,
				    "%s: changing to %d not supported\n",
				    dev->name, type);
1171 1172
			return -EOPNOTSUPP;
		}
1173
		break;
1174
	case NL80211_IFTYPE_P2P_CLIENT:
1175
	case NL80211_IFTYPE_P2P_GO:
1176 1177
		switch (type) {
		case NL80211_IFTYPE_STATION:
1178
			if (mwifiex_cfg80211_deinit_p2p(priv))
1179
				return -EFAULT;
1180 1181
			priv->adapter->curr_iface_comb.p2p_intf--;
			priv->adapter->curr_iface_comb.sta_intf++;
1182
			dev->ieee80211_ptr->iftype = type;
1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196
			break;
		case NL80211_IFTYPE_ADHOC:
			if (mwifiex_cfg80211_deinit_p2p(priv))
				return -EFAULT;
			return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype,
							       type, flags,
							       params);
			break;
		case NL80211_IFTYPE_AP:
			if (mwifiex_cfg80211_deinit_p2p(priv))
				return -EFAULT;
			return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
							flags, params);
		case NL80211_IFTYPE_UNSPECIFIED:
1197 1198
			mwifiex_dbg(priv->adapter, INFO,
				    "%s: kept type as P2P\n", dev->name);
1199 1200
		case NL80211_IFTYPE_P2P_CLIENT:
		case NL80211_IFTYPE_P2P_GO:
1201 1202
			return 0;
		default:
1203 1204 1205
			mwifiex_dbg(priv->adapter, ERROR,
				    "%s: changing to %d not supported\n",
				    dev->name, type);
1206 1207 1208
			return -EOPNOTSUPP;
		}
		break;
1209
	default:
1210 1211 1212
		mwifiex_dbg(priv->adapter, ERROR,
			    "%s: unknown iftype: %d\n",
			    dev->name, dev->ieee80211_ptr->iftype);
1213
		return -EOPNOTSUPP;
1214 1215
	}

1216

1217
	return 0;
1218 1219
}

1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242
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:
1243
				rate->bw = RATE_INFO_BW_20;
1244 1245
				break;
			case (BIT(2)):
1246
				rate->bw = RATE_INFO_BW_40;
1247 1248
				break;
			case (BIT(3)):
1249
				rate->bw = RATE_INFO_BW_80;
1250 1251
				break;
			case (BIT(3) | BIT(2)):
1252
				rate->bw = RATE_INFO_BW_160;
1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271
				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;
1272
			rate->bw = RATE_INFO_BW_20;
1273
			if (tx_htinfo & BIT(1))
1274
				rate->bw = RATE_INFO_BW_40;
1275 1276 1277 1278 1279 1280
			if (tx_htinfo & BIT(2))
				rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
		}
	}
}

1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293
/*
 * 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,
1294
			  struct mwifiex_sta_node *node,
1295 1296
			  struct station_info *sinfo)
{
1297
	u32 rate;
1298

1299 1300 1301 1302
	sinfo->filled = BIT(NL80211_STA_INFO_RX_BYTES) | BIT(NL80211_STA_INFO_TX_BYTES) |
			BIT(NL80211_STA_INFO_RX_PACKETS) | BIT(NL80211_STA_INFO_TX_PACKETS) |
			BIT(NL80211_STA_INFO_TX_BITRATE) |
			BIT(NL80211_STA_INFO_SIGNAL) | BIT(NL80211_STA_INFO_SIGNAL_AVG);
1303

1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327
	if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
		if (!node)
			return -ENOENT;

		sinfo->filled |= BIT(NL80211_STA_INFO_INACTIVE_TIME) |
				BIT(NL80211_STA_INFO_TX_FAILED);
		sinfo->inactive_time =
			jiffies_to_msecs(jiffies - node->stats.last_rx);

		sinfo->signal = node->stats.rssi;
		sinfo->signal_avg = node->stats.rssi;
		sinfo->rx_bytes = node->stats.rx_bytes;
		sinfo->tx_bytes = node->stats.tx_bytes;
		sinfo->rx_packets = node->stats.rx_packets;
		sinfo->tx_packets = node->stats.tx_packets;
		sinfo->tx_failed = node->stats.tx_failed;

		mwifiex_parse_htinfo(priv, node->stats.last_tx_htinfo,
				     &sinfo->txrate);
		sinfo->txrate.legacy = node->stats.last_tx_rate * 5;

		return 0;
	}

1328
	/* Get signal information from the firmware */
1329 1330
	if (mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO,
			     HostCmd_ACT_GEN_GET, 0, NULL, true)) {
1331 1332
		mwifiex_dbg(priv->adapter, ERROR,
			    "failed to get signal information\n");
1333
		return -EFAULT;
1334 1335 1336
	}

	if (mwifiex_drv_get_data_rate(priv, &rate)) {
1337 1338
		mwifiex_dbg(priv->adapter, ERROR,
			    "getting data rate error\n");
1339
		return -EFAULT;
1340 1341
	}

1342
	/* Get DTIM period information from firmware */
1343 1344 1345
	mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
			 HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
			 &priv->dtim_period, true);
1346

1347
	mwifiex_parse_htinfo(priv, priv->tx_htinfo, &sinfo->txrate);
1348

1349
	sinfo->signal_avg = priv->bcn_rssi_avg;
1350 1351 1352 1353
	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;
1354
	sinfo->signal = priv->bcn_rssi_avg;
1355
	/* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
1356
	sinfo->txrate.legacy = rate * 5;
1357

1358
	if (priv->bss_mode == NL80211_IFTYPE_STATION) {
1359
		sinfo->filled |= BIT(NL80211_STA_INFO_BSS_PARAM);
1360 1361 1362 1363 1364 1365 1366 1367 1368
		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;
1369
		sinfo->bss_param.dtim_period = priv->dtim_period;
1370 1371 1372 1373
		sinfo->bss_param.beacon_interval =
			priv->curr_bss_params.bss_descriptor.beacon_period;
	}

1374
	return 0;
1375 1376 1377 1378 1379 1380 1381 1382 1383 1384
}

/*
 * 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,
1385
			     const u8 *mac, struct station_info *sinfo)
1386 1387 1388 1389 1390 1391 1392 1393
{
	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;

1394
	return mwifiex_dump_station_info(priv, NULL, sinfo);
1395 1396
}

1397 1398 1399 1400 1401 1402 1403 1404
/*
 * 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);
1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418
	static struct mwifiex_sta_node *node;

	if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
	    priv->media_connected && idx == 0) {
		ether_addr_copy(mac, priv->cfg_bssid);
		return mwifiex_dump_station_info(priv, NULL, sinfo);
	} else if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
		mwifiex_send_cmd(priv, HOST_CMD_APCMD_STA_LIST,
				 HostCmd_ACT_GEN_GET, 0, NULL, true);

		if (node && (&node->list == &priv->sta_list)) {
			node = NULL;
			return -ENOENT;
		}
1419

1420 1421 1422 1423 1424 1425
		node = list_prepare_entry(node, &priv->sta_list, list);
		list_for_each_entry_continue(node, &priv->sta_list, list) {
			ether_addr_copy(mac, node->mac_addr);
			return mwifiex_dump_station_info(priv, node, sinfo);
		}
	}
1426

1427
	return -ENOENT;
1428 1429
}

1430 1431 1432 1433 1434 1435
static int
mwifiex_cfg80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
			     int idx, struct survey_info *survey)
{
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
	struct mwifiex_chan_stats *pchan_stats = priv->adapter->chan_stats;
1436
	enum nl80211_band band;
1437

1438
	mwifiex_dbg(priv->adapter, DUMP, "dump_survey idx=%d\n", idx);
1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467

	memset(survey, 0, sizeof(struct survey_info));

	if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
	    priv->media_connected && idx == 0) {
			u8 curr_bss_band = priv->curr_bss_params.band;
			u32 chan = priv->curr_bss_params.bss_descriptor.channel;

			band = mwifiex_band_to_radio_type(curr_bss_band);
			survey->channel = ieee80211_get_channel(wiphy,
				ieee80211_channel_to_frequency(chan, band));

			if (priv->bcn_nf_last) {
				survey->filled = SURVEY_INFO_NOISE_DBM;
				survey->noise = priv->bcn_nf_last;
			}
			return 0;
	}

	if (idx >= priv->adapter->num_in_chan_stats)
		return -ENOENT;

	if (!pchan_stats[idx].cca_scan_dur)
		return 0;

	band = pchan_stats[idx].bandcfg;
	survey->channel = ieee80211_get_channel(wiphy,
	    ieee80211_channel_to_frequency(pchan_stats[idx].chan_num, band));
	survey->filled = SURVEY_INFO_NOISE_DBM |
1468 1469
			 SURVEY_INFO_TIME |
			 SURVEY_INFO_TIME_BUSY;
1470
	survey->noise = pchan_stats[idx].noise;
1471 1472
	survey->time = pchan_stats[idx].cca_scan_dur;
	survey->time_busy = pchan_stats[idx].cca_busy_dur;
1473 1474 1475 1476

	return 0;
}

1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514
/* 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,
1515
	.n_bitrates = ARRAY_SIZE(mwifiex_rates),
1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554
};

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),
1555 1556
	.bitrates = mwifiex_rates + 4,
	.n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
1557 1558 1559 1560 1561 1562 1563 1564 1565
};


/* 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,
1566
	WLAN_CIPHER_SUITE_SMS4,
1567
	WLAN_CIPHER_SUITE_AES_CMAC,
1568 1569
};

1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598
/* 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),
	},
};

1599 1600 1601
/*
 * CFG802.11 operation handler for setting bit rates.
 *
1602 1603
 * Function configures data rates to firmware using bitrate mask
 * provided by cfg80211.
1604 1605 1606 1607 1608 1609 1610
 */
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);
1611
	u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
1612
	enum nl80211_band band;
1613
	struct mwifiex_adapter *adapter = priv->adapter;
1614

1615
	if (!priv->media_connected) {
1616 1617
		mwifiex_dbg(adapter, ERROR,
			    "Can not set Tx data rate in disconnected state\n");
1618
		return -EINVAL;
1619 1620
	}

1621
	band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1622

1623
	memset(bitmap_rates, 0, sizeof(bitmap_rates));
1624

1625
	/* Fill HR/DSSS rates. */
1626
	if (band == NL80211_BAND_2GHZ)
1627
		bitmap_rates[0] = mask->control[band].legacy & 0x000f;
1628

1629
	/* Fill OFDM rates */
1630
	if (band == NL80211_BAND_2GHZ)
1631 1632 1633 1634
		bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4;
	else
		bitmap_rates[1] = mask->control[band].legacy;

1635 1636
	/* Fill HT MCS rates */
	bitmap_rates[2] = mask->control[band].ht_mcs[0];
1637
	if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1638
		bitmap_rates[2] |= mask->control[band].ht_mcs[1] << 8;
1639

1640 1641 1642 1643 1644 1645 1646
       /* 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];
	}

1647 1648
	return mwifiex_send_cmd(priv, HostCmd_CMD_TX_RATE_CFG,
				HostCmd_ACT_GEN_SET, 0, bitmap_rates, true);
1649 1650
}

1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676
/*
 * 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;
1677 1678 1679
		return mwifiex_send_cmd(priv,
					HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
					0, 0, &subsc_evt, true);
1680 1681
	} else {
		subsc_evt.action = HostCmd_ACT_BITWISE_CLR;
1682 1683 1684
		return mwifiex_send_cmd(priv,
					HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
					0, 0, &subsc_evt, true);
1685 1686 1687 1688 1689
	}

	return 0;
}

1690 1691 1692 1693 1694 1695 1696 1697
/* 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);
1698 1699 1700
	struct mwifiex_adapter *adapter = priv->adapter;

	mwifiex_cancel_scan(adapter);
1701

1702
	if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) {
1703 1704
		mwifiex_dbg(priv->adapter, ERROR,
			    "%s: bss_type mismatched\n", __func__);
1705 1706 1707 1708
		return -EINVAL;
	}

	if (!priv->bss_started) {
1709 1710
		mwifiex_dbg(priv->adapter, ERROR,
			    "%s: bss not started\n", __func__);
1711 1712 1713 1714
		return -EINVAL;
	}

	if (mwifiex_set_mgmt_ies(priv, data)) {
1715 1716
		mwifiex_dbg(priv->adapter, ERROR,
			    "%s: setting mgmt ies failed\n", __func__);
1717 1718 1719 1720 1721 1722
		return -EFAULT;
	}

	return 0;
}

A
Avinash Patil 已提交
1723 1724 1725 1726 1727 1728 1729 1730
/* 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,
1731
			     struct station_del_parameters *params)
A
Avinash Patil 已提交
1732 1733 1734
{
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
	struct mwifiex_sta_node *sta_node;
1735
	u8 deauth_mac[ETH_ALEN];
A
Avinash Patil 已提交
1736 1737
	unsigned long flags;

1738 1739 1740 1741 1742
	if (!priv->bss_started && priv->wdev.cac_started) {
		mwifiex_dbg(priv->adapter, INFO, "%s: abort CAC!\n", __func__);
		mwifiex_abort_cac(priv);
	}

A
Avinash Patil 已提交
1743 1744 1745
	if (list_empty(&priv->sta_list) || !priv->bss_started)
		return 0;

1746 1747 1748
	if (!params->mac || is_broadcast_ether_addr(params->mac))
		return 0;

1749 1750
	mwifiex_dbg(priv->adapter, INFO, "%s: mac address %pM\n",
		    __func__, params->mac);
1751

1752
	eth_zero_addr(deauth_mac);
1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 1763 1764

	spin_lock_irqsave(&priv->sta_list_spinlock, flags);
	sta_node = mwifiex_get_sta_entry(priv, params->mac);
	if (sta_node)
		ether_addr_copy(deauth_mac, params->mac);
	spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);

	if (is_valid_ether_addr(deauth_mac)) {
		if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_STA_DEAUTH,
				     HostCmd_ACT_GEN_SET, 0,
				     deauth_mac, true))
			return -1;
A
Avinash Patil 已提交
1765 1766 1767 1768 1769
	}

	return 0;
}

1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796
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;
		}
1797 1798 1799
	} else {
		struct ieee80211_sta_ht_cap *ht_info;
		int rx_mcs_supp;
1800
		enum nl80211_band band;
1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813

		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;
		}

1814
		for (band = 0; band < NUM_NL80211_BANDS; band++) {
1815 1816 1817 1818 1819 1820 1821 1822 1823
			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);
		}
1824 1825 1826 1827 1828
	}

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

1829 1830
	return mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA,
				HostCmd_ACT_GEN_SET, 0, &ant_cfg, true);
1831 1832
}

1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847
static int
mwifiex_cfg80211_get_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);
	mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA,
			 HostCmd_ACT_GEN_GET, 0, NULL, true);

	*tx_ant = priv->tx_ant;
	*rx_ant = priv->rx_ant;

	return 0;
}

1848 1849 1850 1851 1852 1853 1854
/* 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);

1855 1856
	mwifiex_abort_cac(priv);

A
Avinash Patil 已提交
1857
	if (mwifiex_del_mgmt_ies(priv))
1858 1859
		mwifiex_dbg(priv->adapter, ERROR,
			    "Failed to delete mgmt IEs!\n");
A
Avinash Patil 已提交
1860

1861
	priv->ap_11n_enabled = 0;
1862
	memset(&priv->bss_cfg, 0, sizeof(priv->bss_cfg));
1863

1864 1865
	if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
			     HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1866 1867
		mwifiex_dbg(priv->adapter, ERROR,
			    "Failed to stop the BSS\n");
1868 1869 1870
		return -1;
	}

1871 1872 1873 1874 1875 1876 1877
	if (mwifiex_send_cmd(priv, HOST_CMD_APCMD_SYS_RESET,
			     HostCmd_ACT_GEN_SET, 0, NULL, true)) {
		mwifiex_dbg(priv->adapter, ERROR,
			    "Failed to reset BSS\n");
		return -1;
	}

1878 1879 1880 1881
	if (netif_carrier_ok(priv->netdev))
		netif_carrier_off(priv->netdev);
	mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);

1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896
	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);

1897
	if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
A
Avinash Patil 已提交
1898 1899
		return -1;

1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914
	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;
	}
1915 1916 1917 1918 1919
	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;
	}
1920

1921 1922 1923 1924 1925 1926 1927 1928 1929 1930
	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:
1931
		kfree(bss_cfg);
1932 1933 1934
		return -EINVAL;
	}

1935
	mwifiex_uap_set_channel(priv, bss_cfg, params->chandef);
A
Avinash Patil 已提交
1936
	mwifiex_set_uap_rates(bss_cfg, params);
1937

A
Avinash Patil 已提交
1938
	if (mwifiex_set_secure_params(priv, bss_cfg, params)) {
1939 1940
		mwifiex_dbg(priv->adapter, ERROR,
			    "Failed to parse secuirty parameters!\n");
1941
		goto out;
A
Avinash Patil 已提交
1942 1943
	}

1944
	mwifiex_set_ht_params(priv, bss_cfg, params);
1945 1946 1947 1948 1949 1950 1951

	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);
	}

1952 1953 1954 1955 1956
	if (priv->ap_11ac_enabled)
		mwifiex_set_11ac_ba_params(priv);
	else
		mwifiex_set_ba_params(priv);

1957
	mwifiex_set_wmm_params(priv, bss_cfg, params);
1958

1959 1960 1961
	if (mwifiex_is_11h_active(priv))
		mwifiex_set_tpc_params(priv, bss_cfg, params);

1962 1963 1964
	if (mwifiex_is_11h_active(priv) &&
	    !cfg80211_chandef_dfs_required(wiphy, &params->chandef,
					   priv->bss_mode)) {
1965 1966
		mwifiex_dbg(priv->adapter, INFO,
			    "Disable 11h extensions in FW\n");
1967
		if (mwifiex_11h_activate(priv, false)) {
1968 1969
			mwifiex_dbg(priv->adapter, ERROR,
				    "Failed to disable 11h extensions!!");
1970
			goto out;
1971
		}
1972
		priv->state_11h.is_11h_active = false;
1973 1974
	}

1975
	if (mwifiex_config_start_uap(priv, bss_cfg)) {
1976 1977
		mwifiex_dbg(priv->adapter, ERROR,
			    "Failed to start AP\n");
1978
		goto out;
1979 1980
	}

1981
	if (mwifiex_set_mgmt_ies(priv, &params->beacon))
1982
		goto out;
1983 1984 1985 1986

	if (!netif_carrier_ok(priv->netdev))
		netif_carrier_on(priv->netdev);
	mwifiex_wake_up_net_dev_queue(priv->netdev, priv->adapter);
1987

1988
	memcpy(&priv->bss_cfg, bss_cfg, sizeof(priv->bss_cfg));
1989 1990
	kfree(bss_cfg);
	return 0;
1991 1992 1993 1994

out:
	kfree(bss_cfg);
	return -1;
1995 1996
}

1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008
/*
 * 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);

X
Xinming Hu 已提交
2009 2010 2011
	if (!mwifiex_stop_bg_scan(priv))
		cfg80211_sched_scan_stopped_rtnl(priv->wdev.wiphy);

2012
	if (mwifiex_deauthenticate(priv, NULL))
2013 2014
		return -EFAULT;

2015
	eth_zero_addr(priv->cfg_bssid);
2016
	priv->hs2_enabled = false;
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035

	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;
2036
	struct cfg80211_bss *bss;
2037
	int ie_len;
2038
	u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
2039
	enum nl80211_band band;
2040

2041 2042
	if (mwifiex_get_bss_info(priv, &bss_info))
		return -1;
2043 2044 2045 2046 2047

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

	memcpy(&ie_buf[sizeof(struct ieee_types_header)],
2048
	       &bss_info.ssid.ssid, bss_info.ssid.ssid_len);
2049 2050
	ie_len = ie_buf[1] + sizeof(struct ieee_types_header);

2051
	band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
2052
	chan = __ieee80211_get_channel(priv->wdev.wiphy,
2053
			ieee80211_channel_to_frequency(bss_info.bss_chan,
2054
						       band));
2055

2056
	bss = cfg80211_inform_bss(priv->wdev.wiphy, chan,
2057
				  CFG80211_BSS_FTYPE_UNKNOWN,
2058 2059
				  bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
				  0, ie_buf, ie_len, 0, GFP_KERNEL);
2060 2061 2062 2063
	if (bss) {
		cfg80211_put_bss(priv->wdev.wiphy, bss);
		ether_addr_copy(priv->cfg_bssid, bss_info.bssid);
	}
2064

2065
	return 0;
2066 2067 2068 2069 2070 2071 2072 2073 2074 2075 2076 2077 2078 2079
}

/*
 * 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,
2080
 * the function notifies the CFG802.11 subsystem of the new BSS connection.
2081 2082
 */
static int
2083 2084 2085
mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len,
		       const u8 *ssid, const u8 *bssid, int mode,
		       struct ieee80211_channel *channel,
2086 2087
		       struct cfg80211_connect_params *sme, bool privacy)
{
2088
	struct cfg80211_ssid req_ssid;
2089
	int ret, auth_type = 0;
2090
	struct cfg80211_bss *bss = NULL;
2091
	u8 is_scanning_required = 0;
2092

2093
	memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
2094 2095 2096

	req_ssid.ssid_len = ssid_len;
	if (ssid_len > IEEE80211_MAX_SSID_LEN) {
2097
		mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n");
2098 2099 2100 2101 2102
		return -EINVAL;
	}

	memcpy(req_ssid.ssid, ssid, ssid_len);
	if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
2103
		mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n");
2104 2105 2106
		return -EINVAL;
	}

2107 2108 2109 2110 2111
	/* 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;
2112
	priv->sec_info.encryption_mode = 0;
2113
	priv->sec_info.is_authtype_auto = 0;
2114
	ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1);
2115

2116
	if (mode == NL80211_IFTYPE_ADHOC) {
2117 2118 2119
		/* "privacy" is set only for ad-hoc mode */
		if (privacy) {
			/*
2120
			 * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
2121 2122 2123 2124
			 * 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.
			 */
2125
			priv->sec_info.encryption_mode =
2126
					WLAN_CIPHER_SUITE_WEP104;
2127
			priv->sec_info.authentication_mode =
2128
					NL80211_AUTHTYPE_OPEN_SYSTEM;
2129 2130 2131 2132 2133 2134
		}

		goto done;
	}

	/* Now handle infra mode. "sme" is valid for infra mode only */
2135
	if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
2136
		auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
2137 2138 2139 2140
		priv->sec_info.is_authtype_auto = 1;
	} else {
		auth_type = sme->auth_type;
	}
2141 2142

	if (sme->crypto.n_ciphers_pairwise) {
2143 2144
		priv->sec_info.encryption_mode =
						sme->crypto.ciphers_pairwise[0];
2145
		priv->sec_info.authentication_mode = auth_type;
2146 2147 2148
	}

	if (sme->crypto.cipher_group) {
2149
		priv->sec_info.encryption_mode = sme->crypto.cipher_group;
2150
		priv->sec_info.authentication_mode = auth_type;
2151 2152 2153 2154 2155
	}
	if (sme->ie)
		ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);

	if (sme->key) {
2156
		if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
2157 2158 2159
			mwifiex_dbg(priv->adapter, INFO,
				    "info: setting wep encryption\t"
				    "with key len %d\n", sme->key_len);
2160
			priv->wep_key_curr_index = sme->key_idx;
2161 2162 2163
			ret = mwifiex_set_encode(priv, NULL, sme->key,
						 sme->key_len, sme->key_idx,
						 NULL, 0);
2164 2165 2166
		}
	}
done:
2167 2168 2169 2170 2171 2172 2173 2174 2175
	/*
	 * 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)) {
2176
				mwifiex_dbg(priv->adapter, ERROR, "scan error\n");
2177 2178 2179
				return -EFAULT;
			}
		}
2180

2181 2182
		/* Find the BSS we want using available scan results */
		if (mode == NL80211_IFTYPE_ADHOC)
2183
			bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
2184
					       bssid, ssid, ssid_len,
2185 2186
					       IEEE80211_BSS_TYPE_IBSS,
					       IEEE80211_PRIVACY_ANY);
2187
		else
2188
			bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
2189
					       bssid, ssid, ssid_len,
2190 2191
					       IEEE80211_BSS_TYPE_ESS,
					       IEEE80211_PRIVACY_ANY);
2192 2193 2194

		if (!bss) {
			if (is_scanning_required) {
2195 2196
				mwifiex_dbg(priv->adapter, WARN,
					    "assoc: requested bss not found in scan results\n");
2197 2198 2199 2200
				break;
			}
			is_scanning_required = 1;
		} else {
2201 2202 2203
			mwifiex_dbg(priv->adapter, MSG,
				    "info: trying to associate to '%s' bssid %pM\n",
				    (char *)req_ssid.ssid, bss->bssid);
2204 2205 2206
			memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
			break;
		}
2207 2208
	}

2209 2210 2211
	ret = mwifiex_bss_start(priv, bss, &req_ssid);
	if (ret)
		return ret;
2212

2213
	if (mode == NL80211_IFTYPE_ADHOC) {
2214 2215 2216 2217 2218 2219 2220 2221 2222 2223 2224 2225 2226 2227 2228 2229 2230 2231 2232 2233 2234
		/* 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);
2235
	struct mwifiex_adapter *adapter = priv->adapter;
2236
	int ret;
2237

2238
	if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) {
2239 2240 2241
		mwifiex_dbg(adapter, ERROR,
			    "%s: reject infra assoc request in non-STA role\n",
			    dev->name);
2242
		return -EINVAL;
2243 2244
	}

2245
	if (priv->wdev.current_bss) {
2246 2247
		mwifiex_dbg(adapter, ERROR,
			    "%s: already connected\n", dev->name);
2248 2249 2250
		return -EALREADY;
	}

2251 2252 2253
	if (priv->scan_block)
		priv->scan_block = false;

2254
	if (adapter->surprise_removed || adapter->is_cmd_timedout) {
2255 2256 2257 2258
		mwifiex_dbg(adapter, ERROR,
			    "%s: Ignore connection.\t"
			    "Card removed or FW in bad state\n",
			    dev->name);
2259 2260 2261
		return -EFAULT;
	}

2262 2263 2264
	mwifiex_dbg(adapter, INFO,
		    "info: Trying to associate to %s and bssid %pM\n",
		    (char *)sme->ssid, sme->bssid);
2265

X
Xinming Hu 已提交
2266 2267 2268
	if (!mwifiex_stop_bg_scan(priv))
		cfg80211_sched_scan_stopped_rtnl(priv->wdev.wiphy);

2269
	ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
2270
				     priv->bss_mode, sme->channel, sme, 0);
A
Amitkumar Karwar 已提交
2271 2272 2273 2274
	if (!ret) {
		cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0,
					NULL, 0, WLAN_STATUS_SUCCESS,
					GFP_KERNEL);
2275 2276 2277
		mwifiex_dbg(priv->adapter, MSG,
			    "info: associated to bssid %pM successfully\n",
			    priv->cfg_bssid);
A
Avinash Patil 已提交
2278 2279 2280 2281
		if (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) &&
		    priv->adapter->auto_tdls &&
		    priv->bss_type == MWIFIEX_BSS_TYPE_STA)
			mwifiex_setup_auto_tdls_timer(priv);
A
Amitkumar Karwar 已提交
2282
	} else {
2283 2284 2285
		mwifiex_dbg(priv->adapter, ERROR,
			    "info: association to bssid %pM failed\n",
			    priv->cfg_bssid);
2286
		eth_zero_addr(priv->cfg_bssid);
2287 2288 2289 2290 2291 2292 2293 2294 2295 2296

		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
2297 2298
	}

2299
	return 0;
2300 2301
}

2302 2303 2304 2305 2306 2307 2308 2309 2310 2311 2312 2313 2314 2315
/*
 * 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 mwifiex_adapter *adapter = priv->adapter;
	int index = 0, i;
	u8 config_bands = 0;

2316
	if (params->chandef.chan->band == NL80211_BAND_2GHZ) {
2317 2318 2319 2320 2321 2322 2323 2324 2325 2326 2327 2328 2329 2330 2331 2332 2333 2334 2335 2336 2337 2338 2339 2340
		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;
			}
		}

2341 2342
		if (cfg80211_get_chandef_type(&params->chandef) !=
						NL80211_CHAN_NO_HT)
2343
			config_bands |= BAND_G | BAND_GN;
2344
	} else {
2345
		if (cfg80211_get_chandef_type(&params->chandef) ==
2346
						NL80211_CHAN_NO_HT)
2347 2348 2349 2350 2351 2352 2353 2354 2355 2356 2357 2358 2359 2360 2361 2362
			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 =
2363 2364 2365 2366
		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);
2367

2368 2369 2370 2371
	mwifiex_dbg(adapter, INFO,
		    "info: set ibss band %d, chan %d, chan offset %d\n",
		    config_bands, priv->adhoc_channel,
		    adapter->sec_chan_offset);
2372 2373 2374 2375

	return 0;
}

2376 2377 2378 2379 2380 2381 2382 2383 2384 2385
/*
 * 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)
{
2386
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2387 2388
	int ret = 0;

2389
	if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
2390 2391 2392
		mwifiex_dbg(priv->adapter, ERROR,
			    "request to join ibss received\t"
			    "when station is not in ibss mode\n");
2393 2394 2395
		goto done;
	}

2396 2397 2398
	mwifiex_dbg(priv->adapter, MSG,
		    "info: trying to join to %s and bssid %pM\n",
		    (char *)params->ssid, params->bssid);
2399

2400 2401
	mwifiex_set_ibss_params(priv, params);

2402
	ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
2403
				     params->bssid, priv->bss_mode,
2404 2405
				     params->chandef.chan, NULL,
				     params->privacy);
2406
done:
A
Amitkumar Karwar 已提交
2407
	if (!ret) {
2408 2409
		cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid,
				     params->chandef.chan, GFP_KERNEL);
2410 2411 2412
		mwifiex_dbg(priv->adapter, MSG,
			    "info: joined/created adhoc network with bssid\t"
			    "%pM successfully\n", priv->cfg_bssid);
A
Amitkumar Karwar 已提交
2413
	} else {
2414 2415
		mwifiex_dbg(priv->adapter, ERROR,
			    "info: failed creating/joining adhoc network\n");
A
Amitkumar Karwar 已提交
2416 2417
	}

2418 2419 2420 2421 2422 2423 2424 2425 2426 2427 2428 2429
	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)
{
2430
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2431

2432 2433
	mwifiex_dbg(priv->adapter, MSG, "info: disconnecting from essid %pM\n",
		    priv->cfg_bssid);
2434
	if (mwifiex_deauthenticate(priv, NULL))
2435 2436
		return -EFAULT;

2437
	eth_zero_addr(priv->cfg_bssid);
2438 2439 2440 2441 2442 2443 2444 2445

	return 0;
}

/*
 * CFG802.11 operation handler for scan request.
 *
 * This function issues a scan request to the firmware based upon
G
Geliang Tang 已提交
2446
 * the user specified scan configuration. On successful completion,
2447 2448 2449
 * it also informs the results.
 */
static int
J
Johannes Berg 已提交
2450
mwifiex_cfg80211_scan(struct wiphy *wiphy,
2451 2452
		      struct cfg80211_scan_request *request)
{
J
Johannes Berg 已提交
2453
	struct net_device *dev = request->wdev->netdev;
2454
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2455
	int i, offset, ret;
A
Amitkumar Karwar 已提交
2456
	struct ieee80211_channel *chan;
2457
	struct ieee_types_header *ie;
2458
	struct mwifiex_user_scan_cfg *user_scan_cfg;
2459

2460 2461
	mwifiex_dbg(priv->adapter, CMD,
		    "info: received scan request on %s\n", dev->name);
2462

2463 2464 2465 2466
	/* Block scan request if scan operation or scan cleanup when interface
	 * is disabled is in process
	 */
	if (priv->scan_request || priv->scan_aborting) {
2467 2468
		mwifiex_dbg(priv->adapter, WARN,
			    "cmd: Scan already in process..\n");
2469 2470 2471
		return -EBUSY;
	}

2472 2473 2474
	if (!priv->wdev.current_bss && priv->scan_block)
		priv->scan_block = false;

X
Xinming Hu 已提交
2475 2476 2477
	if (!mwifiex_stop_bg_scan(priv))
		cfg80211_sched_scan_stopped_rtnl(priv->wdev.wiphy);

2478 2479
	user_scan_cfg = kzalloc(sizeof(*user_scan_cfg), GFP_KERNEL);
	if (!user_scan_cfg)
A
Amitkumar Karwar 已提交
2480
		return -ENOMEM;
2481

B
Bing Zhao 已提交
2482 2483
	priv->scan_request = request;

2484 2485 2486 2487 2488 2489 2490 2491 2492 2493
	if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
		ether_addr_copy(priv->random_mac, request->mac_addr);
		for (i = 0; i < ETH_ALEN; i++) {
			priv->random_mac[i] &= request->mac_addr_mask[i];
			priv->random_mac[i] |= get_random_int() &
					       ~(request->mac_addr_mask[i]);
		}
	}

	ether_addr_copy(user_scan_cfg->random_mac, priv->random_mac);
2494 2495
	user_scan_cfg->num_ssids = request->n_ssids;
	user_scan_cfg->ssid_list = request->ssids;
2496

A
Avinash Patil 已提交
2497
	if (request->ie && request->ie_len) {
2498
		offset = 0;
A
Avinash Patil 已提交
2499 2500 2501 2502
		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;
2503 2504 2505 2506 2507 2508
			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
2509 2510 2511
		}
	}

2512 2513
	for (i = 0; i < min_t(u32, request->n_channels,
			      MWIFIEX_USER_SCAN_CHAN_MAX); i++) {
A
Amitkumar Karwar 已提交
2514
		chan = request->channels[i];
2515 2516
		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
2517

2518
		if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids)
2519
			user_scan_cfg->chan_list[i].scan_type =
2520
						MWIFIEX_SCAN_TYPE_PASSIVE;
A
Amitkumar Karwar 已提交
2521
		else
2522
			user_scan_cfg->chan_list[i].scan_type =
2523
						MWIFIEX_SCAN_TYPE_ACTIVE;
A
Amitkumar Karwar 已提交
2524

2525
		user_scan_cfg->chan_list[i].scan_time = 0;
A
Amitkumar Karwar 已提交
2526
	}
2527

2528 2529 2530 2531 2532
	if (priv->adapter->scan_chan_gap_enabled &&
	    mwifiex_is_any_intf_active(priv))
		user_scan_cfg->scan_chan_gap =
					      priv->adapter->scan_chan_gap_time;

2533 2534
	ret = mwifiex_scan_networks(priv, user_scan_cfg);
	kfree(user_scan_cfg);
2535
	if (ret) {
2536 2537
		mwifiex_dbg(priv->adapter, ERROR,
			    "scan failed: %d\n", ret);
2538
		priv->scan_aborting = false;
B
Bing Zhao 已提交
2539
		priv->scan_request = NULL;
2540 2541
		return ret;
	}
A
Amitkumar Karwar 已提交
2542

A
Avinash Patil 已提交
2543 2544 2545 2546 2547 2548 2549 2550 2551
	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);
			}
		}
	}
2552 2553 2554
	return 0;
}

X
Xinming Hu 已提交
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 2606 2607 2608 2609 2610 2611 2612 2613 2614 2615 2616 2617 2618 2619 2620 2621 2622 2623 2624 2625 2626 2627 2628 2629 2630 2631 2632 2633 2634 2635 2636 2637 2638 2639 2640
/* CFG802.11 operation handler for sched_scan_start.
 *
 * This function issues a bgscan config request to the firmware based upon
 * the user specified sched_scan configuration. On successful completion,
 * firmware will generate BGSCAN_REPORT event, driver should issue bgscan
 * query command to get sched_scan results from firmware.
 */
static int
mwifiex_cfg80211_sched_scan_start(struct wiphy *wiphy,
				  struct net_device *dev,
				  struct cfg80211_sched_scan_request *request)
{
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
	int i, offset;
	struct ieee80211_channel *chan;
	struct mwifiex_bg_scan_cfg *bgscan_cfg;
	struct ieee_types_header *ie;

	if (!request || (!request->n_ssids && !request->n_match_sets)) {
		wiphy_err(wiphy, "%s : Invalid Sched_scan parameters",
			  __func__);
		return -EINVAL;
	}

	wiphy_info(wiphy, "sched_scan start : n_ssids=%d n_match_sets=%d ",
		   request->n_ssids, request->n_match_sets);
	wiphy_info(wiphy, "n_channels=%d interval=%d ie_len=%d\n",
		   request->n_channels, request->scan_plans->interval,
		   (int)request->ie_len);

	bgscan_cfg = kzalloc(sizeof(*bgscan_cfg), GFP_KERNEL);
	if (!bgscan_cfg)
		return -ENOMEM;

	if (priv->scan_request || priv->scan_aborting)
		bgscan_cfg->start_later = true;

	bgscan_cfg->num_ssids = request->n_match_sets;
	bgscan_cfg->ssid_list = request->match_sets;

	if (request->ie && request->ie_len) {
		offset = 0;
		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_BGSCAN;
			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;
		}
	}

	for (i = 0; i < min_t(u32, request->n_channels,
			      MWIFIEX_BG_SCAN_CHAN_MAX); i++) {
		chan = request->channels[i];
		bgscan_cfg->chan_list[i].chan_number = chan->hw_value;
		bgscan_cfg->chan_list[i].radio_type = chan->band;

		if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids)
			bgscan_cfg->chan_list[i].scan_type =
						MWIFIEX_SCAN_TYPE_PASSIVE;
		else
			bgscan_cfg->chan_list[i].scan_type =
						MWIFIEX_SCAN_TYPE_ACTIVE;

		bgscan_cfg->chan_list[i].scan_time = 0;
	}

	bgscan_cfg->chan_per_scan = min_t(u32, request->n_channels,
					  MWIFIEX_BG_SCAN_CHAN_MAX);

	/* Use at least 15 second for per scan cycle */
	bgscan_cfg->scan_interval = (request->scan_plans->interval >
				     MWIFIEX_BGSCAN_INTERVAL) ?
				request->scan_plans->interval :
				MWIFIEX_BGSCAN_INTERVAL;

	bgscan_cfg->repeat_count = MWIFIEX_BGSCAN_REPEAT_COUNT;
	bgscan_cfg->report_condition = MWIFIEX_BGSCAN_SSID_MATCH |
				MWIFIEX_BGSCAN_WAIT_ALL_CHAN_DONE;
	bgscan_cfg->bss_type = MWIFIEX_BSS_MODE_INFRA;
	bgscan_cfg->action = MWIFIEX_BGSCAN_ACT_SET;
	bgscan_cfg->enable = true;
2641 2642 2643 2644
	if (request->min_rssi_thold != NL80211_SCAN_RSSI_THOLD_OFF) {
		bgscan_cfg->report_condition |= MWIFIEX_BGSCAN_SSID_RSSI_MATCH;
		bgscan_cfg->rssi_threshold = request->min_rssi_thold;
	}
X
Xinming Hu 已提交
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

	if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11_BG_SCAN_CONFIG,
			     HostCmd_ACT_GEN_SET, 0, bgscan_cfg, true)) {
		kfree(bgscan_cfg);
		return -EFAULT;
	}

	priv->sched_scanning = true;

	kfree(bgscan_cfg);
	return 0;
}

/* CFG802.11 operation handler for sched_scan_stop.
 *
 * This function issues a bgscan config command to disable
 * previous bgscan configuration in the firmware
 */
static int mwifiex_cfg80211_sched_scan_stop(struct wiphy *wiphy,
					    struct net_device *dev)
{
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);

	wiphy_info(wiphy, "sched scan stop!");
	mwifiex_stop_bg_scan(priv);

	return 0;
}

2674 2675 2676 2677 2678 2679 2680
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
2681
	vht_info->cap = adapter->hw_dot_11ac_dev_cap;
2682 2683 2684 2685 2686 2687 2688 2689 2690
	/* 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;
}

2691 2692 2693 2694 2695 2696
/*
 * This function sets up the CFG802.11 specific HT capability fields
 * with default values.
 *
 * The following default values are set -
 *      - HT Supported = True
2697 2698 2699
 *      - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
 *      - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
 *      - HT Capabilities supported by firmware
2700 2701 2702 2703 2704 2705 2706 2707 2708 2709 2710 2711 2712
 *      - 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;
2713 2714
	ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
	ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
2715 2716 2717

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

2718 2719 2720 2721 2722 2723 2724 2725 2726 2727 2728 2729 2730 2731 2732 2733
	/* 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;

2734 2735
	if (adapter->user_dev_mcs_support == HT_STREAM_2X2)
		ht_info->cap |= 3 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2736
	else
2737
		ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2738 2739 2740 2741 2742 2743

	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;

2744 2745 2746 2747 2748 2749 2750 2751 2752 2753 2754 2755 2756 2757 2758
	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;

2759 2760 2761
	ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
	ht_info->cap |= IEEE80211_HT_CAP_SM_PS;

2762 2763
	rx_mcs_supp = GET_RXMCSSUPP(adapter->user_dev_mcs_support);
	/* Set MCS for 1x1/2x2 */
2764 2765 2766
	memset(mcs, 0xff, rx_mcs_supp);
	/* Clear all the other values */
	memset(&mcs[rx_mcs_supp], 0,
2767
	       sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
2768
	if (priv->bss_mode == NL80211_IFTYPE_STATION ||
2769
	    ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2770 2771 2772 2773 2774 2775 2776 2777
		/* 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;
}

2778
/*
2779
 *  create a new virtual interface with the given name and name assign type
2780
 */
2781
struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
2782
					      const char *name,
2783
					      unsigned char name_assign_type,
2784 2785 2786
					      enum nl80211_iftype type,
					      u32 *flags,
					      struct vif_params *params)
2787
{
2788 2789
	struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
	struct mwifiex_private *priv;
2790 2791
	struct net_device *dev;
	void *mdev_priv;
2792
	int ret;
2793 2794

	if (!adapter)
2795
		return ERR_PTR(-EFAULT);
2796 2797 2798 2799 2800

	switch (type) {
	case NL80211_IFTYPE_UNSPECIFIED:
	case NL80211_IFTYPE_STATION:
	case NL80211_IFTYPE_ADHOC:
2801 2802
		if (adapter->curr_iface_comb.sta_intf ==
		    adapter->iface_limit.sta_intf) {
2803 2804
			mwifiex_dbg(adapter, ERROR,
				    "cannot create multiple sta/adhoc ifaces\n");
2805
			return ERR_PTR(-EINVAL);
2806 2807
		}

S
Shengzhen Li 已提交
2808 2809
		priv = mwifiex_get_unused_priv_by_bss_type(
						adapter, MWIFIEX_BSS_TYPE_STA);
2810
		if (!priv) {
2811 2812
			mwifiex_dbg(adapter, ERROR,
				    "could not get free private struct\n");
2813 2814 2815
			return ERR_PTR(-EFAULT);
		}

2816 2817
		priv->wdev.wiphy = wiphy;
		priv->wdev.iftype = NL80211_IFTYPE_STATION;
2818

2819 2820 2821 2822 2823 2824 2825
		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;
2826
		priv->bss_priority = 0;
2827 2828
		priv->bss_role = MWIFIEX_BSS_ROLE_STA;

2829 2830
		break;
	case NL80211_IFTYPE_AP:
2831 2832
		if (adapter->curr_iface_comb.uap_intf ==
		    adapter->iface_limit.uap_intf) {
2833 2834
			mwifiex_dbg(adapter, ERROR,
				    "cannot create multiple AP ifaces\n");
2835
			return ERR_PTR(-EINVAL);
2836 2837
		}

S
Shengzhen Li 已提交
2838 2839
		priv = mwifiex_get_unused_priv_by_bss_type(
						adapter, MWIFIEX_BSS_TYPE_UAP);
2840
		if (!priv) {
2841 2842
			mwifiex_dbg(adapter, ERROR,
				    "could not get free private struct\n");
2843 2844 2845
			return ERR_PTR(-EFAULT);
		}

2846 2847
		priv->wdev.wiphy = wiphy;
		priv->wdev.iftype = NL80211_IFTYPE_AP;
2848 2849 2850

		priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
		priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2851
		priv->bss_priority = 0;
2852 2853 2854 2855
		priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
		priv->bss_started = 0;
		priv->bss_mode = type;

S
Stone Piao 已提交
2856 2857
		break;
	case NL80211_IFTYPE_P2P_CLIENT:
2858 2859
		if (adapter->curr_iface_comb.p2p_intf ==
		    adapter->iface_limit.p2p_intf) {
2860 2861
			mwifiex_dbg(adapter, ERROR,
				    "cannot create multiple P2P ifaces\n");
S
Stone Piao 已提交
2862 2863 2864
			return ERR_PTR(-EINVAL);
		}

S
Shengzhen Li 已提交
2865 2866
		priv = mwifiex_get_unused_priv_by_bss_type(
						adapter, MWIFIEX_BSS_TYPE_P2P);
2867
		if (!priv) {
2868 2869
			mwifiex_dbg(adapter, ERROR,
				    "could not get free private struct\n");
2870 2871
			return ERR_PTR(-EFAULT);
		}
S
Stone Piao 已提交
2872

2873
		priv->wdev.wiphy = wiphy;
S
Stone Piao 已提交
2874 2875 2876
		/* At start-up, wpa_supplicant tries to change the interface
		 * to NL80211_IFTYPE_STATION if it is not managed mode.
		 */
2877
		priv->wdev.iftype = NL80211_IFTYPE_P2P_CLIENT;
2878
		priv->bss_mode = NL80211_IFTYPE_P2P_CLIENT;
S
Stone Piao 已提交
2879 2880 2881 2882 2883 2884 2885 2886 2887 2888 2889 2890

		/* 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;

2891
		if (mwifiex_cfg80211_init_p2p_client(priv)) {
2892 2893 2894
			memset(&priv->wdev, 0, sizeof(priv->wdev));
			priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
			return ERR_PTR(-EFAULT);
2895
		}
2896

2897 2898
		break;
	default:
2899
		mwifiex_dbg(adapter, ERROR, "type not supported\n");
2900
		return ERR_PTR(-EINVAL);
2901 2902
	}

A
Avinash Patil 已提交
2903
	dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name,
2904
			       name_assign_type, ether_setup,
2905
			       IEEE80211_NUM_ACS, 1);
2906
	if (!dev) {
2907 2908
		mwifiex_dbg(adapter, ERROR,
			    "no memory available for netdevice\n");
2909 2910
		memset(&priv->wdev, 0, sizeof(priv->wdev));
		priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2911
		priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2912
		return ERR_PTR(-ENOMEM);
2913 2914
	}

2915 2916 2917
	mwifiex_init_priv_params(priv, dev);
	priv->netdev = dev;

2918 2919
	ret = mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
			       HostCmd_ACT_GEN_SET, 0, NULL, true);
2920
	if (ret)
2921 2922 2923
		return ERR_PTR(ret);

	ret = mwifiex_sta_init_cmd(priv, false, false);
2924
	if (ret)
2925 2926
		return ERR_PTR(ret);

2927
	mwifiex_setup_ht_caps(&wiphy->bands[NL80211_BAND_2GHZ]->ht_cap, priv);
2928 2929
	if (adapter->is_hw_11ac_capable)
		mwifiex_setup_vht_caps(
2930
			&wiphy->bands[NL80211_BAND_2GHZ]->vht_cap, priv);
2931 2932 2933

	if (adapter->config_bands & BAND_A)
		mwifiex_setup_ht_caps(
2934
			&wiphy->bands[NL80211_BAND_5GHZ]->ht_cap, priv);
2935

2936 2937
	if ((adapter->config_bands & BAND_A) && adapter->is_hw_11ac_capable)
		mwifiex_setup_vht_caps(
2938
			&wiphy->bands[NL80211_BAND_5GHZ]->vht_cap, priv);
2939

2940
	dev_net_set(dev, wiphy_net(wiphy));
2941
	dev->ieee80211_ptr = &priv->wdev;
2942 2943 2944 2945 2946 2947 2948
	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;
2949
	dev->ethtool_ops = &mwifiex_ethtool_ops;
2950 2951 2952 2953 2954 2955 2956 2957

	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)) {
2958 2959
		mwifiex_dbg(adapter, ERROR,
			    "cannot register virtual network device\n");
2960 2961
		free_netdev(dev);
		priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2962
		priv->netdev = NULL;
2963 2964 2965
		memset(&priv->wdev, 0, sizeof(priv->wdev));
		priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
		return ERR_PTR(-EFAULT);
2966 2967
	}

2968
	priv->dfs_cac_workqueue = alloc_workqueue("MWIFIEX_DFS_CAC%s",
2969 2970
						  WQ_HIGHPRI |
						  WQ_MEM_RECLAIM |
2971
						  WQ_UNBOUND, 1, name);
2972
	if (!priv->dfs_cac_workqueue) {
2973 2974
		mwifiex_dbg(adapter, ERROR,
			    "cannot register virtual network device\n");
2975 2976 2977 2978 2979 2980 2981 2982 2983 2984
		free_netdev(dev);
		priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
		priv->netdev = NULL;
		memset(&priv->wdev, 0, sizeof(priv->wdev));
		priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
		return ERR_PTR(-ENOMEM);
	}

	INIT_DELAYED_WORK(&priv->dfs_cac_work, mwifiex_dfs_cac_work_queue);

2985
	priv->dfs_chan_sw_workqueue = alloc_workqueue("MWIFIEX_DFS_CHSW%s",
2986
						      WQ_HIGHPRI | WQ_UNBOUND |
2987
						      WQ_MEM_RECLAIM, 1, name);
2988
	if (!priv->dfs_chan_sw_workqueue) {
2989 2990
		mwifiex_dbg(adapter, ERROR,
			    "cannot register virtual network device\n");
2991 2992 2993 2994 2995 2996 2997 2998 2999 3000 3001
		free_netdev(dev);
		priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
		priv->netdev = NULL;
		memset(&priv->wdev, 0, sizeof(priv->wdev));
		priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
		return ERR_PTR(-ENOMEM);
	}

	INIT_DELAYED_WORK(&priv->dfs_chan_sw_work,
			  mwifiex_dfs_chan_sw_work_queue);

3002 3003
	sema_init(&priv->async_sem, 1);

3004 3005
	mwifiex_dbg(adapter, INFO,
		    "info: %s: Marvell 802.11 Adapter\n", dev->name);
3006 3007 3008 3009

#ifdef CONFIG_DEBUG_FS
	mwifiex_dev_debugfs_init(priv);
#endif
3010

3011 3012 3013 3014 3015 3016 3017 3018 3019 3020 3021 3022 3023
	switch (type) {
	case NL80211_IFTYPE_UNSPECIFIED:
	case NL80211_IFTYPE_STATION:
	case NL80211_IFTYPE_ADHOC:
		adapter->curr_iface_comb.sta_intf++;
		break;
	case NL80211_IFTYPE_AP:
		adapter->curr_iface_comb.uap_intf++;
		break;
	case NL80211_IFTYPE_P2P_CLIENT:
		adapter->curr_iface_comb.p2p_intf++;
		break;
	default:
3024
		mwifiex_dbg(adapter, ERROR, "type not supported\n");
3025 3026 3027
		return ERR_PTR(-EINVAL);
	}

3028
	return &priv->wdev;
3029 3030 3031 3032 3033 3034
}
EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);

/*
 * del_virtual_intf: remove the virtual interface determined by dev
 */
3035
int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
3036
{
3037
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
3038
	struct mwifiex_adapter *adapter = priv->adapter;
3039
	struct sk_buff *skb, *tmp;
3040 3041 3042 3043 3044

#ifdef CONFIG_DEBUG_FS
	mwifiex_dev_debugfs_remove(priv);
#endif

X
Xinming Hu 已提交
3045 3046 3047
	if (priv->sched_scanning)
		priv->sched_scanning = false;

3048
	mwifiex_stop_net_dev_queue(priv->netdev, adapter);
3049

3050 3051 3052
	skb_queue_walk_safe(&priv->bypass_txq, skb, tmp)
		mwifiex_write_data_complete(priv->adapter, skb, 0, -1);

3053 3054 3055
	if (netif_carrier_ok(priv->netdev))
		netif_carrier_off(priv->netdev);

3056 3057
	if (wdev->netdev->reg_state == NETREG_REGISTERED)
		unregister_netdevice(wdev->netdev);
3058

3059 3060 3061 3062 3063 3064
	if (priv->dfs_cac_workqueue) {
		flush_workqueue(priv->dfs_cac_workqueue);
		destroy_workqueue(priv->dfs_cac_workqueue);
		priv->dfs_cac_workqueue = NULL;
	}

3065 3066 3067 3068 3069
	if (priv->dfs_chan_sw_workqueue) {
		flush_workqueue(priv->dfs_chan_sw_workqueue);
		destroy_workqueue(priv->dfs_chan_sw_workqueue);
		priv->dfs_chan_sw_workqueue = NULL;
	}
3070
	/* Clear the priv in adapter */
3071
	priv->netdev->ieee80211_ptr = NULL;
3072
	priv->netdev = NULL;
3073
	priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
3074 3075 3076

	priv->media_connected = false;

3077 3078 3079 3080
	switch (priv->bss_mode) {
	case NL80211_IFTYPE_UNSPECIFIED:
	case NL80211_IFTYPE_STATION:
	case NL80211_IFTYPE_ADHOC:
3081
		adapter->curr_iface_comb.sta_intf--;
3082 3083
		break;
	case NL80211_IFTYPE_AP:
3084
		adapter->curr_iface_comb.uap_intf--;
3085 3086 3087
		break;
	case NL80211_IFTYPE_P2P_CLIENT:
	case NL80211_IFTYPE_P2P_GO:
3088
		adapter->curr_iface_comb.p2p_intf--;
3089 3090
		break;
	default:
3091 3092
		mwifiex_dbg(adapter, ERROR,
			    "del_virtual_intf: type not supported\n");
3093 3094 3095
		break;
	}

3096 3097
	priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;

3098 3099 3100 3101
	if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA ||
	    GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP)
		kfree(priv->hist_data);

3102 3103 3104 3105
	return 0;
}
EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf);

A
Amitkumar Karwar 已提交
3106
static bool
3107 3108
mwifiex_is_pattern_supported(struct cfg80211_pkt_pattern *pat, s8 *byte_seq,
			     u8 max_byte_seq)
A
Amitkumar Karwar 已提交
3109 3110 3111 3112 3113 3114 3115 3116 3117 3118 3119 3120 3121 3122 3123 3124 3125
{
	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;
			}

3126 3127 3128 3129 3130 3131
			/* wildcard bytes record as the offset
			 * before the valid byte
			 */
			if (!valid_byte_cnt && !dont_care_byte)
				pat->pkt_offset++;

3132
			if (valid_byte_cnt > max_byte_seq)
A
Amitkumar Karwar 已提交
3133 3134 3135 3136
				return false;
		}
	}

3137
	byte_seq[max_byte_seq] = valid_byte_cnt;
A
Amitkumar Karwar 已提交
3138 3139 3140 3141

	return true;
}

3142
#ifdef CONFIG_PM
3143 3144 3145 3146 3147 3148 3149 3150 3151 3152 3153 3154 3155 3156 3157 3158 3159 3160 3161 3162 3163 3164 3165 3166 3167 3168 3169 3170 3171 3172 3173 3174 3175 3176 3177 3178 3179 3180 3181 3182 3183 3184 3185 3186 3187 3188 3189 3190 3191 3192 3193 3194 3195 3196 3197 3198 3199 3200
static void mwifiex_set_auto_arp_mef_entry(struct mwifiex_private *priv,
					   struct mwifiex_mef_entry *mef_entry)
{
	int i, filt_num = 0, num_ipv4 = 0;
	struct in_device *in_dev;
	struct in_ifaddr *ifa;
	__be32 ips[MWIFIEX_MAX_SUPPORTED_IPADDR];
	struct mwifiex_adapter *adapter = priv->adapter;

	mef_entry->mode = MEF_MODE_HOST_SLEEP;
	mef_entry->action = MEF_ACTION_AUTO_ARP;

	/* Enable ARP offload feature */
	memset(ips, 0, sizeof(ips));
	for (i = 0; i < MWIFIEX_MAX_BSS_NUM; i++) {
		if (adapter->priv[i]->netdev) {
			in_dev = __in_dev_get_rtnl(adapter->priv[i]->netdev);
			if (!in_dev)
				continue;
			ifa = in_dev->ifa_list;
			if (!ifa || !ifa->ifa_local)
				continue;
			ips[i] = ifa->ifa_local;
			num_ipv4++;
		}
	}

	for (i = 0; i < num_ipv4; i++) {
		if (!ips[i])
			continue;
		mef_entry->filter[filt_num].repeat = 1;
		memcpy(mef_entry->filter[filt_num].byte_seq,
		       (u8 *)&ips[i], sizeof(ips[i]));
		mef_entry->filter[filt_num].
			byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
			sizeof(ips[i]);
		mef_entry->filter[filt_num].offset = 46;
		mef_entry->filter[filt_num].filt_type = TYPE_EQ;
		if (filt_num) {
			mef_entry->filter[filt_num].filt_action =
				TYPE_OR;
		}
		filt_num++;
	}

	mef_entry->filter[filt_num].repeat = 1;
	mef_entry->filter[filt_num].byte_seq[0] = 0x08;
	mef_entry->filter[filt_num].byte_seq[1] = 0x06;
	mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 2;
	mef_entry->filter[filt_num].offset = 20;
	mef_entry->filter[filt_num].filt_type = TYPE_EQ;
	mef_entry->filter[filt_num].filt_action = TYPE_AND;
}

static int mwifiex_set_wowlan_mef_entry(struct mwifiex_private *priv,
					struct mwifiex_ds_mef_cfg *mef_cfg,
					struct mwifiex_mef_entry *mef_entry,
					struct cfg80211_wowlan *wowlan)
A
Amitkumar Karwar 已提交
3201
{
3202
	int i, filt_num = 0, ret = 0;
A
Amitkumar Karwar 已提交
3203
	bool first_pat = true;
A
Amitkumar Karwar 已提交
3204
	u8 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ + 1];
A
Amitkumar Karwar 已提交
3205 3206 3207 3208 3209 3210 3211 3212 3213
	const u8 ipv4_mc_mac[] = {0x33, 0x33};
	const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};

	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],
3214 3215
					byte_seq,
					MWIFIEX_MEF_MAX_BYTESEQ)) {
3216 3217
			mwifiex_dbg(priv->adapter, ERROR,
				    "Pattern not supported\n");
A
Amitkumar Karwar 已提交
3218 3219 3220 3221 3222
			return -EOPNOTSUPP;
		}

		if (!wowlan->patterns[i].pkt_offset) {
			if (!(byte_seq[0] & 0x01) &&
A
Amitkumar Karwar 已提交
3223
			    (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 1)) {
3224
				mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST;
A
Amitkumar Karwar 已提交
3225 3226
				continue;
			} else if (is_broadcast_ether_addr(byte_seq)) {
3227
				mef_cfg->criteria |= MWIFIEX_CRITERIA_BROADCAST;
A
Amitkumar Karwar 已提交
3228 3229
				continue;
			} else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
A
Amitkumar Karwar 已提交
3230
				    (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 2)) ||
A
Amitkumar Karwar 已提交
3231
				   (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
A
Amitkumar Karwar 已提交
3232
				    (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 3))) {
3233
				mef_cfg->criteria |= MWIFIEX_CRITERIA_MULTICAST;
A
Amitkumar Karwar 已提交
3234 3235 3236 3237 3238
				continue;
			}
		}
		mef_entry->filter[filt_num].repeat = 1;
		mef_entry->filter[filt_num].offset =
3239
			wowlan->patterns[i].pkt_offset;
A
Amitkumar Karwar 已提交
3240
		memcpy(mef_entry->filter[filt_num].byte_seq, byte_seq,
3241
				sizeof(byte_seq));
A
Amitkumar Karwar 已提交
3242 3243
		mef_entry->filter[filt_num].filt_type = TYPE_EQ;

C
chunfan chen 已提交
3244
		if (first_pat) {
A
Amitkumar Karwar 已提交
3245
			first_pat = false;
C
chunfan chen 已提交
3246 3247
			mwifiex_dbg(priv->adapter, INFO, "Wake on patterns\n");
		} else {
A
Amitkumar Karwar 已提交
3248
			mef_entry->filter[filt_num].filt_action = TYPE_AND;
C
chunfan chen 已提交
3249
		}
A
Amitkumar Karwar 已提交
3250 3251 3252 3253 3254

		filt_num++;
	}

	if (wowlan->magic_pkt) {
3255
		mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST;
A
Amitkumar Karwar 已提交
3256 3257
		mef_entry->filter[filt_num].repeat = 16;
		memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
3258
				ETH_ALEN);
A
Amitkumar Karwar 已提交
3259
		mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3260
			ETH_ALEN;
3261
		mef_entry->filter[filt_num].offset = 28;
A
Amitkumar Karwar 已提交
3262 3263 3264
		mef_entry->filter[filt_num].filt_type = TYPE_EQ;
		if (filt_num)
			mef_entry->filter[filt_num].filt_action = TYPE_OR;
3265 3266 3267 3268

		filt_num++;
		mef_entry->filter[filt_num].repeat = 16;
		memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
3269
				ETH_ALEN);
3270
		mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3271
			ETH_ALEN;
3272 3273 3274
		mef_entry->filter[filt_num].offset = 56;
		mef_entry->filter[filt_num].filt_type = TYPE_EQ;
		mef_entry->filter[filt_num].filt_action = TYPE_OR;
C
chunfan chen 已提交
3275
		mwifiex_dbg(priv->adapter, INFO, "Wake on magic packet\n");
A
Amitkumar Karwar 已提交
3276
	}
3277 3278 3279 3280 3281 3282 3283 3284 3285 3286 3287 3288 3289 3290 3291 3292 3293 3294 3295 3296 3297 3298 3299 3300 3301
	return ret;
}

static int mwifiex_set_mef_filter(struct mwifiex_private *priv,
				  struct cfg80211_wowlan *wowlan)
{
	int ret = 0, num_entries = 1;
	struct mwifiex_ds_mef_cfg mef_cfg;
	struct mwifiex_mef_entry *mef_entry;

	if (wowlan->n_patterns || wowlan->magic_pkt)
		num_entries++;

	mef_entry = kcalloc(num_entries, sizeof(*mef_entry), GFP_KERNEL);
	if (!mef_entry)
		return -ENOMEM;

	memset(&mef_cfg, 0, sizeof(mef_cfg));
	mef_cfg.criteria |= MWIFIEX_CRITERIA_BROADCAST |
		MWIFIEX_CRITERIA_UNICAST;
	mef_cfg.num_entries = num_entries;
	mef_cfg.mef_entry = mef_entry;

	mwifiex_set_auto_arp_mef_entry(priv, &mef_entry[0]);

3302
	if (wowlan->n_patterns || wowlan->magic_pkt) {
3303 3304
		ret = mwifiex_set_wowlan_mef_entry(priv, &mef_cfg,
						   &mef_entry[1], wowlan);
3305 3306 3307
		if (ret)
			goto err;
	}
A
Amitkumar Karwar 已提交
3308 3309 3310

	if (!mef_cfg.criteria)
		mef_cfg.criteria = MWIFIEX_CRITERIA_BROADCAST |
3311 3312
			MWIFIEX_CRITERIA_UNICAST |
			MWIFIEX_CRITERIA_MULTICAST;
A
Amitkumar Karwar 已提交
3313

3314
	ret = mwifiex_send_cmd(priv, HostCmd_CMD_MEF_CFG,
3315 3316
			HostCmd_ACT_GEN_SET, 0,
			&mef_cfg, true);
3317 3318

err:
A
Amitkumar Karwar 已提交
3319 3320 3321 3322
	kfree(mef_entry);
	return ret;
}

3323 3324 3325 3326
static int mwifiex_cfg80211_suspend(struct wiphy *wiphy,
				    struct cfg80211_wowlan *wowlan)
{
	struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3327
	struct mwifiex_ds_hs_cfg hs_cfg;
3328
	int i, ret = 0, retry_num = 10;
3329
	struct mwifiex_private *priv;
3330 3331
	struct mwifiex_private *sta_priv =
			mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3332

3333
	sta_priv->scan_aborting = true;
3334 3335 3336 3337 3338 3339
	for (i = 0; i < adapter->priv_num; i++) {
		priv = adapter->priv[i];
		mwifiex_abort_cac(priv);
	}

	mwifiex_cancel_all_pending_cmd(adapter);
3340

3341 3342
	for (i = 0; i < adapter->priv_num; i++) {
		priv = adapter->priv[i];
3343
		if (priv && priv->netdev) {
3344
			mwifiex_stop_net_dev_queue(priv->netdev, adapter);
3345 3346 3347
			if (netif_carrier_ok(priv->netdev))
				netif_carrier_off(priv->netdev);
		}
3348 3349 3350 3351 3352 3353 3354 3355 3356 3357 3358
	}

	for (i = 0; i < retry_num; i++) {
		if (!mwifiex_wmm_lists_empty(adapter) ||
		    !mwifiex_bypass_txlist_empty(adapter) ||
		    !skb_queue_empty(&adapter->tx_data_q))
			usleep_range(10000, 15000);
		else
			break;
	}

3359
	if (!wowlan) {
3360 3361
		mwifiex_dbg(adapter, ERROR,
			    "None of the WOWLAN triggers enabled\n");
3362 3363
		ret = 0;
		goto done;
3364 3365
	}

3366
	if (!sta_priv->media_connected && !wowlan->nd_config) {
3367 3368
		mwifiex_dbg(adapter, ERROR,
			    "Can not configure WOWLAN in disconnected state\n");
3369 3370
		ret = 0;
		goto done;
3371 3372
	}

3373
	ret = mwifiex_set_mef_filter(sta_priv, wowlan);
3374
	if (ret) {
3375
		mwifiex_dbg(adapter, ERROR, "Failed to set MEF filter\n");
3376
		goto done;
3377 3378
	}

3379 3380 3381 3382 3383 3384
	memset(&hs_cfg, 0, sizeof(hs_cfg));
	hs_cfg.conditions = le32_to_cpu(adapter->hs_cfg.conditions);

	if (wowlan->nd_config) {
		mwifiex_dbg(adapter, INFO, "Wake on net detect\n");
		hs_cfg.conditions |= HS_CFG_COND_MAC_EVENT;
3385
		mwifiex_cfg80211_sched_scan_start(wiphy, sta_priv->netdev,
3386 3387 3388
						  wowlan->nd_config);
	}

3389
	if (wowlan->disconnect) {
3390
		hs_cfg.conditions |= HS_CFG_COND_MAC_EVENT;
3391
		mwifiex_dbg(sta_priv->adapter, INFO, "Wake on device disconnect\n");
3392 3393
	}

3394 3395 3396
	hs_cfg.is_invoke_hostcmd = false;
	hs_cfg.gpio = adapter->hs_cfg.gpio;
	hs_cfg.gap = adapter->hs_cfg.gap;
3397
	ret = mwifiex_set_hs_params(sta_priv, HostCmd_ACT_GEN_SET,
3398
				    MWIFIEX_SYNC_CMD, &hs_cfg);
3399 3400
	if (ret)
		mwifiex_dbg(adapter, ERROR, "Failed to set HS params\n");
3401

3402 3403
done:
	sta_priv->scan_aborting = false;
3404 3405 3406
	return ret;
}

A
Amitkumar Karwar 已提交
3407 3408
static int mwifiex_cfg80211_resume(struct wiphy *wiphy)
{
3409
	struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3410
	struct mwifiex_private *priv;
3411 3412 3413
	struct mwifiex_ds_wakeup_reason wakeup_reason;
	struct cfg80211_wowlan_wakeup wakeup_report;
	int i;
3414
	bool report_wakeup_reason = true;
3415

3416 3417
	for (i = 0; i < adapter->priv_num; i++) {
		priv = adapter->priv[i];
3418 3419 3420
		if (priv && priv->netdev) {
			if (!netif_carrier_ok(priv->netdev))
				netif_carrier_on(priv->netdev);
3421
			mwifiex_wake_up_net_dev_queue(priv->netdev, adapter);
3422
		}
3423 3424
	}

3425 3426 3427
	if (!wiphy->wowlan_config)
		goto done;

3428
	priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3429 3430 3431 3432 3433 3434 3435 3436 3437 3438 3439 3440 3441 3442 3443 3444 3445 3446 3447 3448 3449 3450 3451 3452 3453 3454 3455 3456 3457 3458 3459
	mwifiex_get_wakeup_reason(priv, HostCmd_ACT_GEN_GET, MWIFIEX_SYNC_CMD,
				  &wakeup_reason);
	memset(&wakeup_report, 0, sizeof(struct cfg80211_wowlan_wakeup));

	wakeup_report.pattern_idx = -1;

	switch (wakeup_reason.hs_wakeup_reason) {
	case NO_HSWAKEUP_REASON:
		break;
	case BCAST_DATA_MATCHED:
		break;
	case MCAST_DATA_MATCHED:
		break;
	case UCAST_DATA_MATCHED:
		break;
	case MASKTABLE_EVENT_MATCHED:
		break;
	case NON_MASKABLE_EVENT_MATCHED:
		if (wiphy->wowlan_config->disconnect)
			wakeup_report.disconnect = true;
		if (wiphy->wowlan_config->nd_config)
			wakeup_report.net_detect = adapter->nd_info;
		break;
	case NON_MASKABLE_CONDITION_MATCHED:
		break;
	case MAGIC_PATTERN_MATCHED:
		if (wiphy->wowlan_config->magic_pkt)
			wakeup_report.magic_pkt = true;
		if (wiphy->wowlan_config->n_patterns)
			wakeup_report.pattern_idx = 1;
		break;
3460 3461 3462 3463
	case GTK_REKEY_FAILURE:
		if (wiphy->wowlan_config->gtk_rekey_failure)
			wakeup_report.gtk_rekey_failure = true;
		break;
3464
	default:
3465
		report_wakeup_reason = false;
3466 3467 3468
		break;
	}

3469
	if (report_wakeup_reason)
3470 3471 3472
		cfg80211_report_wowlan_wakeup(&priv->wdev, &wakeup_report,
					      GFP_KERNEL);

3473
done:
3474 3475 3476 3477 3478 3479 3480
	if (adapter->nd_info) {
		for (i = 0 ; i < adapter->nd_info->n_matches ; i++)
			kfree(adapter->nd_info->matches[i]);
		kfree(adapter->nd_info);
		adapter->nd_info = NULL;
	}

A
Amitkumar Karwar 已提交
3481 3482 3483 3484 3485 3486 3487 3488 3489 3490
	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);
}
3491 3492 3493 3494 3495 3496 3497 3498 3499 3500

static int mwifiex_set_rekey_data(struct wiphy *wiphy, struct net_device *dev,
				  struct cfg80211_gtk_rekey_data *data)
{
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);

	return mwifiex_send_cmd(priv, HostCmd_CMD_GTK_REKEY_OFFLOAD_CFG,
				HostCmd_ACT_GEN_SET, 0, data, true);
}

A
Amitkumar Karwar 已提交
3501 3502
#endif

3503 3504 3505 3506 3507 3508 3509 3510 3511 3512 3513 3514 3515 3516 3517 3518 3519 3520 3521 3522 3523 3524 3525 3526 3527 3528 3529 3530 3531 3532 3533 3534 3535 3536 3537 3538 3539 3540
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)) {
3541 3542
			mwifiex_dbg(priv->adapter, ERROR,
				    "Pattern not supported\n");
3543 3544 3545 3546 3547 3548 3549 3550
			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) {
3551 3552
				mwifiex_dbg(priv->adapter, ERROR,
					    "Multiple packet types not allowed\n");
3553 3554 3555 3556 3557 3558 3559 3560 3561 3562 3563 3564 3565 3566 3567 3568 3569 3570 3571 3572 3573 3574
				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) {
3575 3576
		mwifiex_dbg(priv->adapter, ERROR,
			    "Packet type can not be determined\n");
3577 3578 3579 3580 3581 3582 3583 3584 3585 3586 3587 3588 3589 3590 3591 3592 3593
		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) {
3594 3595
		mwifiex_dbg(adapter, WARN,
			    "Disable coalesce and reset all previous rules\n");
3596 3597 3598
		return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
					HostCmd_ACT_GEN_SET, 0,
					&coalesce_cfg, true);
3599 3600 3601 3602 3603 3604 3605
	}

	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) {
3606 3607
			mwifiex_dbg(adapter, ERROR,
				    "Recheck the patterns provided for rule %d\n",
3608 3609 3610 3611 3612
				i + 1);
			return ret;
		}
	}

3613 3614
	return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
				HostCmd_ACT_GEN_SET, 0, &coalesce_cfg, true);
3615 3616
}

3617 3618 3619 3620 3621
/* 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,
3622
			   const u8 *peer, u8 action_code, u8 dialog_token,
3623
			   u16 status_code, u32 peer_capability,
3624 3625
			   bool initiator, const u8 *extra_ies,
			   size_t extra_ies_len)
3626 3627 3628 3629 3630 3631 3632 3633 3634 3635 3636 3637 3638
{
	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:
3639 3640 3641
		mwifiex_dbg(priv->adapter, MSG,
			    "Send TDLS Setup Request to %pM status_code=%d\n",
			    peer, status_code);
A
Avinash Patil 已提交
3642
		mwifiex_add_auto_tdls_peer(priv, peer);
3643 3644 3645 3646 3647
		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:
A
Avinash Patil 已提交
3648
		mwifiex_add_auto_tdls_peer(priv, peer);
3649 3650 3651
		mwifiex_dbg(priv->adapter, MSG,
			    "Send TDLS Setup Response to %pM status_code=%d\n",
			    peer, status_code);
3652 3653 3654 3655 3656
		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:
3657 3658 3659
		mwifiex_dbg(priv->adapter, MSG,
			    "Send TDLS Confirm to %pM status_code=%d\n", peer,
			    status_code);
3660 3661 3662 3663 3664
		ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
						   dialog_token, status_code,
						   extra_ies, extra_ies_len);
		break;
	case WLAN_TDLS_TEARDOWN:
3665 3666
		mwifiex_dbg(priv->adapter, MSG,
			    "Send TDLS Tear down to %pM\n", peer);
3667 3668 3669 3670 3671
		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:
3672 3673
		mwifiex_dbg(priv->adapter, MSG,
			    "Send TDLS Discovery Request to %pM\n", peer);
3674 3675 3676 3677 3678
		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:
3679 3680
		mwifiex_dbg(priv->adapter, MSG,
			    "Send TDLS Discovery Response to %pM\n", peer);
3681 3682 3683 3684 3685
		ret = mwifiex_send_tdls_action_frame(priv, peer, action_code,
						   dialog_token, status_code,
						   extra_ies, extra_ies_len);
		break;
	default:
3686 3687
		mwifiex_dbg(priv->adapter, ERROR,
			    "Unknown TDLS mgmt/action frame %pM\n", peer);
3688 3689 3690 3691 3692 3693 3694
		ret = -EINVAL;
		break;
	}

	return ret;
}

3695 3696
static int
mwifiex_cfg80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
3697
			   const u8 *peer, enum nl80211_tdls_operation action)
3698 3699 3700 3701 3702 3703 3704 3705 3706 3707 3708
{
	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;

3709 3710
	mwifiex_dbg(priv->adapter, MSG,
		    "TDLS peer=%pM, oper=%d\n", peer, action);
3711 3712 3713 3714 3715 3716 3717 3718 3719 3720

	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!*/
3721 3722
		mwifiex_dbg(priv->adapter, ERROR,
			    "tdls_oper: teardown from driver not supported\n");
3723 3724 3725
		return -EINVAL;
	case NL80211_TDLS_SETUP:
		/* shouldn't happen!*/
3726 3727
		mwifiex_dbg(priv->adapter, ERROR,
			    "tdls_oper: setup from driver not supported\n");
3728 3729 3730
		return -EINVAL;
	case NL80211_TDLS_DISCOVERY_REQ:
		/* shouldn't happen!*/
3731 3732
		mwifiex_dbg(priv->adapter, ERROR,
			    "tdls_oper: discovery from driver not supported\n");
3733 3734
		return -EINVAL;
	default:
3735 3736
		mwifiex_dbg(priv->adapter, ERROR,
			    "tdls_oper: operation not supported\n");
3737 3738 3739 3740 3741 3742
		return -ENOTSUPP;
	}

	return mwifiex_tdls_oper(priv, peer, action);
}

3743 3744 3745 3746 3747 3748 3749 3750 3751 3752 3753 3754 3755 3756 3757 3758 3759 3760 3761 3762 3763 3764 3765 3766 3767 3768 3769 3770 3771 3772 3773 3774 3775 3776 3777 3778 3779 3780 3781 3782 3783 3784 3785 3786 3787 3788 3789 3790 3791 3792 3793 3794 3795 3796 3797 3798 3799 3800 3801 3802 3803 3804 3805 3806 3807 3808
static int
mwifiex_cfg80211_tdls_chan_switch(struct wiphy *wiphy, struct net_device *dev,
				  const u8 *addr, u8 oper_class,
				  struct cfg80211_chan_def *chandef)
{
	struct mwifiex_sta_node *sta_ptr;
	unsigned long flags;
	u16 chan;
	u8 second_chan_offset, band;
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);

	spin_lock_irqsave(&priv->sta_list_spinlock, flags);
	sta_ptr = mwifiex_get_sta_entry(priv, addr);
	spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);

	if (!sta_ptr) {
		wiphy_err(wiphy, "%s: Invalid TDLS peer %pM\n",
			  __func__, addr);
		return -ENOENT;
	}

	if (!(sta_ptr->tdls_cap.extcap.ext_capab[3] &
	      WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)) {
		wiphy_err(wiphy, "%pM do not support tdls cs\n", addr);
		return -ENOENT;
	}

	if (sta_ptr->tdls_status == TDLS_CHAN_SWITCHING ||
	    sta_ptr->tdls_status == TDLS_IN_OFF_CHAN) {
		wiphy_err(wiphy, "channel switch is running, abort request\n");
		return -EALREADY;
	}

	chan = chandef->chan->hw_value;
	second_chan_offset = mwifiex_get_sec_chan_offset(chan);
	band = chandef->chan->band;
	mwifiex_start_tdls_cs(priv, addr, chan, second_chan_offset, band);

	return 0;
}

static void
mwifiex_cfg80211_tdls_cancel_chan_switch(struct wiphy *wiphy,
					 struct net_device *dev,
					 const u8 *addr)
{
	struct mwifiex_sta_node *sta_ptr;
	unsigned long flags;
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);

	spin_lock_irqsave(&priv->sta_list_spinlock, flags);
	sta_ptr = mwifiex_get_sta_entry(priv, addr);
	spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);

	if (!sta_ptr) {
		wiphy_err(wiphy, "%s: Invalid TDLS peer %pM\n",
			  __func__, addr);
	} else if (!(sta_ptr->tdls_status == TDLS_CHAN_SWITCHING ||
		     sta_ptr->tdls_status == TDLS_IN_BASE_CHAN ||
		     sta_ptr->tdls_status == TDLS_IN_OFF_CHAN)) {
		wiphy_err(wiphy, "tdls chan switch not initialize by %pM\n",
			  addr);
	} else
		mwifiex_stop_tdls_cs(priv, addr);
}

3809
static int
3810 3811
mwifiex_cfg80211_add_station(struct wiphy *wiphy, struct net_device *dev,
			     const u8 *mac, struct station_parameters *params)
3812 3813 3814 3815 3816 3817 3818 3819 3820 3821 3822 3823 3824
{
	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);
}

3825 3826 3827 3828 3829 3830 3831 3832 3833 3834
static int
mwifiex_cfg80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
				struct cfg80211_csa_settings *params)
{
	struct ieee_types_header *chsw_ie;
	struct ieee80211_channel_sw_ie *channel_sw;
	int chsw_msec;
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);

	if (priv->adapter->scan_processing) {
3835 3836
		mwifiex_dbg(priv->adapter, ERROR,
			    "radar detection: scan in process...\n");
3837 3838 3839 3840 3841 3842 3843 3844 3845 3846 3847 3848 3849 3850
		return -EBUSY;
	}

	if (priv->wdev.cac_started)
		return -EBUSY;

	if (cfg80211_chandef_identical(&params->chandef,
				       &priv->dfs_chandef))
		return -EINVAL;

	chsw_ie = (void *)cfg80211_find_ie(WLAN_EID_CHANNEL_SWITCH,
					   params->beacon_csa.tail,
					   params->beacon_csa.tail_len);
	if (!chsw_ie) {
3851 3852
		mwifiex_dbg(priv->adapter, ERROR,
			    "Could not parse channel switch announcement IE\n");
3853 3854 3855 3856 3857 3858 3859 3860 3861 3862 3863
		return -EINVAL;
	}

	channel_sw = (void *)(chsw_ie + 1);
	if (channel_sw->mode) {
		if (netif_carrier_ok(priv->netdev))
			netif_carrier_off(priv->netdev);
		mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
	}

	if (mwifiex_del_mgmt_ies(priv))
3864 3865
		mwifiex_dbg(priv->adapter, ERROR,
			    "Failed to delete mgmt IEs!\n");
3866 3867

	if (mwifiex_set_mgmt_ies(priv, &params->beacon_csa)) {
3868 3869
		mwifiex_dbg(priv->adapter, ERROR,
			    "%s: setting mgmt ies failed\n", __func__);
3870 3871 3872 3873 3874 3875 3876 3877 3878 3879 3880 3881 3882
		return -EFAULT;
	}

	memcpy(&priv->dfs_chandef, &params->chandef, sizeof(priv->dfs_chandef));
	memcpy(&priv->beacon_after, &params->beacon_after,
	       sizeof(priv->beacon_after));

	chsw_msec = max(channel_sw->count * priv->bss_cfg.beacon_period, 100);
	queue_delayed_work(priv->dfs_chan_sw_workqueue, &priv->dfs_chan_sw_work,
			   msecs_to_jiffies(chsw_msec));
	return 0;
}

3883 3884 3885 3886 3887 3888 3889 3890 3891
static int mwifiex_cfg80211_get_channel(struct wiphy *wiphy,
					struct wireless_dev *wdev,
					struct cfg80211_chan_def *chandef)
{
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
	struct mwifiex_bssdescriptor *curr_bss;
	struct ieee80211_channel *chan;
	u8 second_chan_offset;
	enum nl80211_channel_type chan_type;
3892
	enum nl80211_band band;
3893 3894 3895 3896 3897 3898 3899 3900 3901 3902 3903 3904 3905
	int freq;
	int ret = -ENODATA;

	if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
	    cfg80211_chandef_valid(&priv->bss_chandef)) {
		*chandef = priv->bss_chandef;
		ret = 0;
	} else if (priv->media_connected) {
		curr_bss = &priv->curr_bss_params.bss_descriptor;
		band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
		freq = ieee80211_channel_to_frequency(curr_bss->channel, band);
		chan = ieee80211_get_channel(wiphy, freq);

3906 3907
		if (priv->ht_param_present) {
			second_chan_offset = priv->assoc_resp_ht_param &
3908 3909 3910 3911 3912 3913 3914 3915 3916 3917 3918 3919 3920 3921
					IEEE80211_HT_PARAM_CHA_SEC_OFFSET;
			chan_type = mwifiex_sec_chan_offset_to_chan_type
							(second_chan_offset);
			cfg80211_chandef_create(chandef, chan, chan_type);
		} else {
			cfg80211_chandef_create(chandef, chan,
						NL80211_CHAN_NO_HT);
		}
		ret = 0;
	}

	return ret;
}

3922 3923 3924 3925 3926 3927 3928 3929 3930 3931
static int
mwifiex_cfg80211_start_radar_detection(struct wiphy *wiphy,
				       struct net_device *dev,
				       struct cfg80211_chan_def *chandef,
				       u32 cac_time_ms)
{
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
	struct mwifiex_radar_params radar_params;

	if (priv->adapter->scan_processing) {
3932 3933
		mwifiex_dbg(priv->adapter, ERROR,
			    "radar detection: scan already in process...\n");
3934 3935 3936
		return -EBUSY;
	}

3937
	if (!mwifiex_is_11h_active(priv)) {
3938 3939
		mwifiex_dbg(priv->adapter, INFO,
			    "Enable 11h extensions in FW\n");
3940
		if (mwifiex_11h_activate(priv, true)) {
3941 3942
			mwifiex_dbg(priv->adapter, ERROR,
				    "Failed to activate 11h extensions!!");
3943 3944 3945 3946 3947
			return -1;
		}
		priv->state_11h.is_11h_active = true;
	}

3948 3949 3950 3951 3952 3953 3954 3955 3956 3957 3958 3959 3960 3961 3962
	memset(&radar_params, 0, sizeof(struct mwifiex_radar_params));
	radar_params.chandef = chandef;
	radar_params.cac_time_ms = cac_time_ms;

	memcpy(&priv->dfs_chandef, chandef, sizeof(priv->dfs_chandef));

	if (mwifiex_send_cmd(priv, HostCmd_CMD_CHAN_REPORT_REQUEST,
			     HostCmd_ACT_GEN_SET, 0, &radar_params, true))
		return -1;

	queue_delayed_work(priv->dfs_cac_workqueue, &priv->dfs_cac_work,
			   msecs_to_jiffies(cac_time_ms));
	return 0;
}

3963
static int
3964 3965 3966
mwifiex_cfg80211_change_station(struct wiphy *wiphy, struct net_device *dev,
				const u8 *mac,
				struct station_parameters *params)
3967 3968 3969 3970 3971 3972 3973 3974 3975 3976 3977 3978 3979 3980 3981 3982 3983 3984 3985 3986
{
	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;
}

3987 3988
/* station cfg80211 operations */
static struct cfg80211_ops mwifiex_cfg80211_ops = {
3989 3990
	.add_virtual_intf = mwifiex_add_virtual_intf,
	.del_virtual_intf = mwifiex_del_virtual_intf,
3991 3992 3993 3994 3995
	.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,
3996
	.dump_station = mwifiex_cfg80211_dump_station,
3997
	.dump_survey = mwifiex_cfg80211_dump_survey,
3998 3999 4000 4001 4002
	.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,
4003
	.mgmt_tx = mwifiex_cfg80211_mgmt_tx,
4004
	.mgmt_frame_register = mwifiex_cfg80211_mgmt_frame_register,
4005 4006
	.remain_on_channel = mwifiex_cfg80211_remain_on_channel,
	.cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel,
4007 4008 4009
	.set_default_key = mwifiex_cfg80211_set_default_key,
	.set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
	.set_tx_power = mwifiex_cfg80211_set_tx_power,
4010
	.get_tx_power = mwifiex_cfg80211_get_tx_power,
4011
	.set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
4012 4013
	.start_ap = mwifiex_cfg80211_start_ap,
	.stop_ap = mwifiex_cfg80211_stop_ap,
4014
	.change_beacon = mwifiex_cfg80211_change_beacon,
4015
	.set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config,
4016
	.set_antenna = mwifiex_cfg80211_set_antenna,
4017
	.get_antenna = mwifiex_cfg80211_get_antenna,
A
Avinash Patil 已提交
4018
	.del_station = mwifiex_cfg80211_del_station,
X
Xinming Hu 已提交
4019 4020
	.sched_scan_start = mwifiex_cfg80211_sched_scan_start,
	.sched_scan_stop = mwifiex_cfg80211_sched_scan_stop,
A
Amitkumar Karwar 已提交
4021 4022 4023 4024
#ifdef CONFIG_PM
	.suspend = mwifiex_cfg80211_suspend,
	.resume = mwifiex_cfg80211_resume,
	.set_wakeup = mwifiex_cfg80211_set_wakeup,
4025
	.set_rekey_data = mwifiex_set_rekey_data,
A
Amitkumar Karwar 已提交
4026
#endif
4027
	.set_coalesce = mwifiex_cfg80211_set_coalesce,
4028
	.tdls_mgmt = mwifiex_cfg80211_tdls_mgmt,
4029
	.tdls_oper = mwifiex_cfg80211_tdls_oper,
4030 4031
	.tdls_channel_switch = mwifiex_cfg80211_tdls_chan_switch,
	.tdls_cancel_channel_switch = mwifiex_cfg80211_tdls_cancel_chan_switch,
4032
	.add_station = mwifiex_cfg80211_add_station,
4033
	.change_station = mwifiex_cfg80211_change_station,
4034
	.get_channel = mwifiex_cfg80211_get_channel,
4035
	.start_radar_detection = mwifiex_cfg80211_start_radar_detection,
4036
	.channel_switch = mwifiex_cfg80211_channel_switch,
4037 4038
};

4039 4040
#ifdef CONFIG_PM
static const struct wiphy_wowlan_support mwifiex_wowlan_support = {
4041
	.flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT |
4042 4043
		WIPHY_WOWLAN_NET_DETECT | WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
		WIPHY_WOWLAN_GTK_REKEY_FAILURE,
A
Amitkumar Karwar 已提交
4044
	.n_patterns = MWIFIEX_MEF_MAX_FILTERS,
4045 4046 4047
	.pattern_min_len = 1,
	.pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
	.max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
4048
	.max_nd_match_sets = MWIFIEX_MAX_ND_MATCH_SETS,
4049 4050 4051
};
#endif

4052 4053 4054 4055 4056 4057 4058 4059 4060 4061 4062
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;
}

4063 4064 4065 4066 4067 4068 4069 4070 4071
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,
};

4072 4073 4074 4075 4076 4077 4078 4079 4080 4081 4082 4083 4084 4085 4086 4087 4088 4089 4090
int mwifiex_init_channel_scan_gap(struct mwifiex_adapter *adapter)
{
	u32 n_channels_bg, n_channels_a = 0;

	n_channels_bg = mwifiex_band_2ghz.n_channels;

	if (adapter->config_bands & BAND_A)
		n_channels_a = mwifiex_band_5ghz.n_channels;

	adapter->num_in_chan_stats = max_t(u32, n_channels_bg, n_channels_a);
	adapter->chan_stats = vmalloc(sizeof(*adapter->chan_stats) *
				      adapter->num_in_chan_stats);

	if (!adapter->chan_stats)
		return -ENOMEM;

	return 0;
}

4091 4092 4093 4094 4095 4096 4097
/*
 * 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.
 */
4098 4099

int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
4100
{
4101 4102
	int ret;
	void *wdev_priv;
4103 4104
	struct wiphy *wiphy;
	struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
4105
	u8 *country_code;
4106
	u32 thr, retry;
4107

4108 4109 4110 4111
	/* create a new wiphy for use with cfg80211 */
	wiphy = wiphy_new(&mwifiex_cfg80211_ops,
			  sizeof(struct mwifiex_adapter *));
	if (!wiphy) {
4112 4113
		mwifiex_dbg(adapter, ERROR,
			    "%s: creating new wiphy\n", __func__);
4114 4115
		return -ENOMEM;
	}
4116 4117
	wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
	wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
4118
	wiphy->mgmt_stypes = mwifiex_mgmt_stypes;
4119
	wiphy->max_remain_on_channel_duration = 5000;
4120 4121
	wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
				 BIT(NL80211_IFTYPE_ADHOC) |
S
Stone Piao 已提交
4122 4123
				 BIT(NL80211_IFTYPE_P2P_CLIENT) |
				 BIT(NL80211_IFTYPE_P2P_GO) |
4124 4125
				 BIT(NL80211_IFTYPE_AP);

4126
	wiphy->bands[NL80211_BAND_2GHZ] = &mwifiex_band_2ghz;
4127
	if (adapter->config_bands & BAND_A)
4128
		wiphy->bands[NL80211_BAND_5GHZ] = &mwifiex_band_5ghz;
4129
	else
4130
		wiphy->bands[NL80211_BAND_5GHZ] = NULL;
4131

4132
	if (adapter->drcs_enabled && ISSUPP_DRCS_ENABLED(adapter->fw_cap_info))
4133 4134 4135
		wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_drcs;
	else if (adapter->is_hw_11ac_capable)
		wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_vht;
4136 4137
	else
		wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta;
4138 4139
	wiphy->n_iface_combinations = 1;

4140
	/* Initialize cipher suits */
4141 4142
	wiphy->cipher_suites = mwifiex_cipher_suites;
	wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
4143

4144 4145 4146 4147
	if (adapter->region_code)
		wiphy->regulatory_flags |= REGULATORY_DISABLE_BEACON_HINTS |
					   REGULATORY_COUNTRY_IE_IGNORE;

4148
	ether_addr_copy(wiphy->perm_addr, adapter->perm_addr);
4149
	wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
4150
	wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
4151
			WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD |
4152
			WIPHY_FLAG_AP_UAPSD |
X
Xinming Hu 已提交
4153
			WIPHY_FLAG_SUPPORTS_SCHED_SCAN |
4154
			WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
4155 4156
			WIPHY_FLAG_HAS_CHANNEL_SWITCH |
			WIPHY_FLAG_PS_ON_BY_DEFAULT;
4157 4158 4159 4160 4161

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

A
Amitkumar Karwar 已提交
4162
#ifdef CONFIG_PM
4163
	wiphy->wowlan = &mwifiex_wowlan_support;
A
Amitkumar Karwar 已提交
4164 4165
#endif

4166 4167
	wiphy->coalesce = &mwifiex_coalesce_support;

4168
	wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
4169 4170
				    NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
				    NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
4171

X
Xinming Hu 已提交
4172 4173 4174 4175
	wiphy->max_sched_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
	wiphy->max_sched_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
	wiphy->max_match_sets = MWIFIEX_MAX_SSID_LIST_LENGTH;

4176 4177
	wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1;
	wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1;
4178

4179
	wiphy->features |= NL80211_FEATURE_HT_IBSS |
4180
			   NL80211_FEATURE_INACTIVITY_TIMER |
4181
			   NL80211_FEATURE_LOW_PRIORITY_SCAN |
4182 4183 4184 4185
			   NL80211_FEATURE_NEED_OBSS_SCAN |
			   NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR |
			   NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
			   NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
4186

4187 4188 4189
	if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info))
		wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;

4190 4191 4192
	if (adapter->fw_api_ver == MWIFIEX_FW_V15)
		wiphy->features |= NL80211_FEATURE_SK_TX_STATUS;

4193
	/* Reserve space for mwifiex specific private data for BSS */
4194
	wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv);
4195

4196
	wiphy->reg_notifier = mwifiex_reg_notifier;
4197

4198
	/* Set struct mwifiex_adapter pointer in wiphy_priv */
4199
	wdev_priv = wiphy_priv(wiphy);
4200
	*(unsigned long *)wdev_priv = (unsigned long)adapter;
4201

4202
	set_wiphy_dev(wiphy, priv->adapter->dev);
4203

4204
	ret = wiphy_register(wiphy);
4205
	if (ret < 0) {
4206 4207
		mwifiex_dbg(adapter, ERROR,
			    "%s: wiphy_register failed: %d\n", __func__, ret);
4208
		wiphy_free(wiphy);
4209 4210
		return ret;
	}
4211 4212

	if (reg_alpha2 && mwifiex_is_valid_alpha2(reg_alpha2)) {
4213 4214
		mwifiex_dbg(adapter, INFO,
			    "driver hint alpha2: %2.2s\n", reg_alpha2);
4215 4216
		regulatory_hint(wiphy, reg_alpha2);
	} else {
4217 4218 4219 4220 4221 4222 4223 4224 4225
		if (adapter->region_code == 0x00) {
			mwifiex_dbg(adapter, WARN, "Ignore world regulatory domain\n");
		} else {
			country_code =
				mwifiex_11d_code_2_region(adapter->region_code);
			if (country_code &&
			    regulatory_hint(wiphy, country_code))
				mwifiex_dbg(priv->adapter, ERROR, "regulatory_hint() failed\n");
		}
4226
	}
4227

4228 4229
	mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
			 HostCmd_ACT_GEN_GET, FRAG_THRESH_I, &thr, true);
4230
	wiphy->frag_threshold = thr;
4231 4232
	mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
			 HostCmd_ACT_GEN_GET, RTS_THRESH_I, &thr, true);
4233
	wiphy->rts_threshold = thr;
4234 4235
	mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
			 HostCmd_ACT_GEN_GET, SHORT_RETRY_LIM_I, &retry, true);
4236
	wiphy->retry_short = (u8) retry;
4237 4238
	mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
			 HostCmd_ACT_GEN_GET, LONG_RETRY_LIM_I, &retry, true);
4239 4240
	wiphy->retry_long = (u8) retry;

4241
	adapter->wiphy = wiphy;
4242 4243
	return ret;
}