cfg80211.c 115.9 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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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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}

/*
 * 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;
	enum ieee80211_band band;
	struct ieee80211_supported_band *sband;
	struct ieee80211_channel *ch;
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	struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
	struct mwifiex_private *priv;
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	struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg;

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

	band = mwifiex_band_to_radio_type(adapter->config_bands);
	if (!wiphy->bands[band]) {
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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;
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	default:
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		mwifiex_dbg(adapter, ERROR,
			    "unknown regdom initiator: %d\n",
			    request->initiator);
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		return;
	}

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

/*
 * This function sets the fragmentation threshold.
 *
597
 * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
598 599 600 601 602
 * and MWIFIEX_FRAG_MAX_VALUE.
 */
static int
mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
{
603 604
	if (frag_thr < MWIFIEX_FRAG_MIN_VALUE ||
	    frag_thr > MWIFIEX_FRAG_MAX_VALUE)
605
		frag_thr = MWIFIEX_FRAG_MAX_VALUE;
606

607 608 609
	return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
				HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
				&frag_thr, true);
610 611 612 613
}

/*
 * This function sets the RTS threshold.
614 615 616

 * The rts value must lie between MWIFIEX_RTS_MIN_VALUE
 * and MWIFIEX_RTS_MAX_VALUE.
617 618 619 620 621 622 623
 */
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;

624 625 626
	return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
				HostCmd_ACT_GEN_SET, RTS_THRESH_I,
				&rts_thr, true);
627 628 629 630 631 632 633 634 635 636 637
}

/*
 * 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)
{
638
	struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
639 640
	struct mwifiex_private *priv;
	struct mwifiex_uap_bss_param *bss_cfg;
641 642 643
	int ret;

	priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
644

645 646 647
	switch (priv->bss_role) {
	case MWIFIEX_BSS_ROLE_UAP:
		if (priv->bss_started) {
648 649
			mwifiex_dbg(adapter, ERROR,
				    "cannot change wiphy params when bss started");
650 651
			return -EINVAL;
		}
652

653 654 655
		bss_cfg = kzalloc(sizeof(*bss_cfg), GFP_KERNEL);
		if (!bss_cfg)
			return -ENOMEM;
656

657
		mwifiex_set_sys_config_invalid_data(bss_cfg);
658

659 660 661 662 663 664
		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;
665

666 667 668 669 670 671 672
		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) {
673 674
			mwifiex_dbg(adapter, ERROR,
				    "Failed to set wiphy phy params\n");
675 676 677
			return ret;
		}
		break;
678 679

		case MWIFIEX_BSS_ROLE_STA:
680
		if (priv->media_connected) {
681 682
			mwifiex_dbg(adapter, ERROR,
				    "cannot change wiphy params when connected");
683 684 685 686 687 688 689
			return -EINVAL;
		}
		if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
			ret = mwifiex_set_rts(priv,
					      wiphy->rts_threshold);
			if (ret)
				return ret;
690
		}
691 692 693 694 695 696 697
		if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
			ret = mwifiex_set_frag(priv,
					       wiphy->frag_threshold);
			if (ret)
				return ret;
		}
		break;
698 699 700
	}

	return 0;
701 702
}

703 704 705 706 707
static int
mwifiex_cfg80211_deinit_p2p(struct mwifiex_private *priv)
{
	u16 mode = P2P_MODE_DISABLE;

708 709
	if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
			     HostCmd_ACT_GEN_SET, 0, &mode, true))
710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728
		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;
729 730
	if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
			     HostCmd_ACT_GEN_SET, 0, &mode, true))
731 732 733
		return -1;

	mode = P2P_MODE_CLIENT;
734 735
	if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
			     HostCmd_ACT_GEN_SET, 0, &mode, true))
736 737 738 739 740
		return -1;

	return 0;
}

741 742 743 744 745 746 747 748 749 750 751 752 753 754
/*
 * 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;
755 756
	if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
			     HostCmd_ACT_GEN_SET, 0, &mode, true))
757 758 759
		return -1;

	mode = P2P_MODE_GO;
760 761
	if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
			     HostCmd_ACT_GEN_SET, 0, &mode, true))
762 763
		return -1;

764 765 766 767 768
	return 0;
}

static int mwifiex_deinit_priv_params(struct mwifiex_private *priv)
{
769 770 771
	struct mwifiex_adapter *adapter = priv->adapter;
	unsigned long flags;

772 773 774 775
	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)) {
776 777
		mwifiex_dbg(adapter, ERROR,
			    "could not unregister mgmt frame rx\n");
778 779 780 781
		return -1;
	}

	mwifiex_deauthenticate(priv, NULL);
782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800

	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);
	}

801 802 803 804 805 806 807 808 809 810 811 812 813
	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)
{
814 815 816
	struct mwifiex_adapter *adapter = priv->adapter;
	unsigned long flags;

817 818 819 820 821 822 823 824 825 826 827
	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
828 829
		priv->bss_num = mwifiex_get_unused_bss_num(adapter,
			 MWIFIEX_BSS_TYPE_STA);
830 831 832 833
		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
834 835
		priv->bss_num = mwifiex_get_unused_bss_num(adapter,
			 MWIFIEX_BSS_TYPE_P2P);
836 837 838
		priv->bss_role =  MWIFIEX_BSS_ROLE_STA;
		priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
		break;
839
	case NL80211_IFTYPE_P2P_GO:
S
Shengzhen Li 已提交
840 841
		priv->bss_num = mwifiex_get_unused_bss_num(adapter,
			 MWIFIEX_BSS_TYPE_P2P);
842 843 844
		priv->bss_role =  MWIFIEX_BSS_ROLE_UAP;
		priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
		break;
845
	case NL80211_IFTYPE_AP:
S
Shengzhen Li 已提交
846 847
		priv->bss_num = mwifiex_get_unused_bss_num(adapter,
			 MWIFIEX_BSS_TYPE_UAP);
848 849 850 851
		priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
		priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
		break;
	default:
852 853 854
		mwifiex_dbg(adapter, ERROR,
			    "%s: changing to %d not supported\n",
			    dev->name, type);
855 856
		return -EOPNOTSUPP;
	}
857

858 859 860 861 862 863 864 865
	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);

866 867 868
	return 0;
}

869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886
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) {
887 888
		mwifiex_dbg(adapter, ERROR,
			    "cannot create multiple P2P ifaces\n");
889 890 891
		return -1;
	}

892 893
	mwifiex_dbg(adapter, INFO,
		    "%s: changing role to p2p\n", dev->name);
894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909

	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:
910 911 912
		mwifiex_dbg(adapter, ERROR,
			    "%s: changing to %d not supported\n",
			    dev->name, type);
913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960
		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)) {
961 962
		mwifiex_dbg(adapter, ERROR,
			    "cannot create multiple station/adhoc ifaces\n");
963 964 965 966
		return -1;
	}

	if (type == NL80211_IFTYPE_STATION)
967 968
		mwifiex_dbg(adapter, INFO,
			    "%s: changing role to station\n", dev->name);
969
	else
970 971
		mwifiex_dbg(adapter, INFO,
			    "%s: changing role to adhoc\n", dev->name);
972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017

	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) {
1018 1019
		mwifiex_dbg(adapter, ERROR,
			    "cannot create multiple AP ifaces\n");
1020 1021 1022
		return -1;
	}

1023 1024
	mwifiex_dbg(adapter, INFO,
		    "%s: changing role to AP\n", dev->name);
1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052

	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;
}
1053 1054 1055 1056 1057 1058 1059 1060 1061 1062
/*
 * 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);
1063
	enum nl80211_iftype curr_iftype = dev->ieee80211_ptr->iftype;
1064

1065
	switch (curr_iftype) {
1066
	case NL80211_IFTYPE_ADHOC:
1067 1068
		switch (type) {
		case NL80211_IFTYPE_STATION:
1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083
			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);
1084
		case NL80211_IFTYPE_UNSPECIFIED:
1085 1086
			mwifiex_dbg(priv->adapter, INFO,
				    "%s: kept type as IBSS\n", dev->name);
1087 1088 1089
		case NL80211_IFTYPE_ADHOC:	/* This shouldn't happen */
			return 0;
		default:
1090 1091 1092
			mwifiex_dbg(priv->adapter, ERROR,
				    "%s: changing to %d not supported\n",
				    dev->name, type);
1093 1094
			return -EOPNOTSUPP;
		}
1095 1096
		break;
	case NL80211_IFTYPE_STATION:
1097 1098
		switch (type) {
		case NL80211_IFTYPE_ADHOC:
1099 1100 1101
			priv->bss_mode = type;
			priv->sec_info.authentication_mode =
						   NL80211_AUTHTYPE_OPEN_SYSTEM;
1102
			dev->ieee80211_ptr->iftype = type;
1103 1104 1105 1106 1107
			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:
1108
		case NL80211_IFTYPE_P2P_GO:
1109 1110 1111 1112 1113
			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);
1114
		case NL80211_IFTYPE_UNSPECIFIED:
1115 1116
			mwifiex_dbg(priv->adapter, INFO,
				    "%s: kept type as STA\n", dev->name);
1117 1118 1119
		case NL80211_IFTYPE_STATION:	/* This shouldn't happen */
			return 0;
		default:
1120 1121 1122
			mwifiex_dbg(priv->adapter, ERROR,
				    "%s: changing to %d not supported\n",
				    dev->name, type);
1123 1124 1125 1126 1127
			return -EOPNOTSUPP;
		}
		break;
	case NL80211_IFTYPE_AP:
		switch (type) {
1128 1129 1130 1131 1132 1133 1134 1135 1136 1137
		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);
1138
		case NL80211_IFTYPE_UNSPECIFIED:
1139 1140
			mwifiex_dbg(priv->adapter, INFO,
				    "%s: kept type as AP\n", dev->name);
1141 1142 1143
		case NL80211_IFTYPE_AP:		/* 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
			return -EOPNOTSUPP;
		}
1149
		break;
1150
	case NL80211_IFTYPE_P2P_CLIENT:
1151
	case NL80211_IFTYPE_P2P_GO:
1152 1153
		switch (type) {
		case NL80211_IFTYPE_STATION:
1154
			if (mwifiex_cfg80211_deinit_p2p(priv))
1155
				return -EFAULT;
1156 1157
			priv->adapter->curr_iface_comb.p2p_intf--;
			priv->adapter->curr_iface_comb.sta_intf++;
1158
			dev->ieee80211_ptr->iftype = type;
1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172
			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:
1173 1174
			mwifiex_dbg(priv->adapter, INFO,
				    "%s: kept type as P2P\n", dev->name);
1175 1176
		case NL80211_IFTYPE_P2P_CLIENT:
		case NL80211_IFTYPE_P2P_GO:
1177 1178
			return 0;
		default:
1179 1180 1181
			mwifiex_dbg(priv->adapter, ERROR,
				    "%s: changing to %d not supported\n",
				    dev->name, type);
1182 1183 1184
			return -EOPNOTSUPP;
		}
		break;
1185
	default:
1186 1187 1188
		mwifiex_dbg(priv->adapter, ERROR,
			    "%s: unknown iftype: %d\n",
			    dev->name, dev->ieee80211_ptr->iftype);
1189
		return -EOPNOTSUPP;
1190 1191
	}

1192

1193
	return 0;
1194 1195
}

1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218
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:
1219
				rate->bw = RATE_INFO_BW_20;
1220 1221
				break;
			case (BIT(2)):
1222
				rate->bw = RATE_INFO_BW_40;
1223 1224
				break;
			case (BIT(3)):
1225
				rate->bw = RATE_INFO_BW_80;
1226 1227
				break;
			case (BIT(3) | BIT(2)):
1228
				rate->bw = RATE_INFO_BW_160;
1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247
				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;
1248
			rate->bw = RATE_INFO_BW_20;
1249
			if (tx_htinfo & BIT(1))
1250
				rate->bw = RATE_INFO_BW_40;
1251 1252 1253 1254 1255 1256
			if (tx_htinfo & BIT(2))
				rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
		}
	}
}

1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269
/*
 * 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,
1270
			  struct mwifiex_sta_node *node,
1271 1272
			  struct station_info *sinfo)
{
1273
	u32 rate;
1274

1275 1276 1277 1278
	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);
1279

1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303
	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;
	}

1304
	/* Get signal information from the firmware */
1305 1306
	if (mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO,
			     HostCmd_ACT_GEN_GET, 0, NULL, true)) {
1307 1308
		mwifiex_dbg(priv->adapter, ERROR,
			    "failed to get signal information\n");
1309
		return -EFAULT;
1310 1311 1312
	}

	if (mwifiex_drv_get_data_rate(priv, &rate)) {
1313 1314
		mwifiex_dbg(priv->adapter, ERROR,
			    "getting data rate error\n");
1315
		return -EFAULT;
1316 1317
	}

1318
	/* Get DTIM period information from firmware */
1319 1320 1321
	mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
			 HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
			 &priv->dtim_period, true);
1322

1323
	mwifiex_parse_htinfo(priv, priv->tx_htinfo, &sinfo->txrate);
1324

1325
	sinfo->signal_avg = priv->bcn_rssi_avg;
1326 1327 1328 1329
	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;
1330
	sinfo->signal = priv->bcn_rssi_avg;
1331
	/* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
1332
	sinfo->txrate.legacy = rate * 5;
1333

1334
	if (priv->bss_mode == NL80211_IFTYPE_STATION) {
1335
		sinfo->filled |= BIT(NL80211_STA_INFO_BSS_PARAM);
1336 1337 1338 1339 1340 1341 1342 1343 1344
		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;
1345
		sinfo->bss_param.dtim_period = priv->dtim_period;
1346 1347 1348 1349
		sinfo->bss_param.beacon_interval =
			priv->curr_bss_params.bss_descriptor.beacon_period;
	}

1350
	return 0;
1351 1352 1353 1354 1355 1356 1357 1358 1359 1360
}

/*
 * 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,
1361
			     const u8 *mac, struct station_info *sinfo)
1362 1363 1364 1365 1366 1367 1368 1369
{
	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;

1370
	return mwifiex_dump_station_info(priv, NULL, sinfo);
1371 1372
}

1373 1374 1375 1376 1377 1378 1379 1380
/*
 * 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);
1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394
	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;
		}
1395

1396 1397 1398 1399 1400 1401
		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);
		}
	}
1402

1403
	return -ENOENT;
1404 1405
}

1406 1407 1408 1409 1410 1411 1412 1413
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;
	enum ieee80211_band band;

1414
	mwifiex_dbg(priv->adapter, DUMP, "dump_survey idx=%d\n", idx);
1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443

	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 |
1444 1445
			 SURVEY_INFO_TIME |
			 SURVEY_INFO_TIME_BUSY;
1446
	survey->noise = pchan_stats[idx].noise;
1447 1448
	survey->time = pchan_stats[idx].cca_scan_dur;
	survey->time_busy = pchan_stats[idx].cca_busy_dur;
1449 1450 1451 1452

	return 0;
}

1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490
/* 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,
1491
	.n_bitrates = ARRAY_SIZE(mwifiex_rates),
1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530
};

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),
1531 1532
	.bitrates = mwifiex_rates + 4,
	.n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
1533 1534 1535 1536 1537 1538 1539 1540 1541
};


/* 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,
1542
	WLAN_CIPHER_SUITE_SMS4,
1543
	WLAN_CIPHER_SUITE_AES_CMAC,
1544 1545
};

1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574
/* 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),
	},
};

1575 1576 1577
/*
 * CFG802.11 operation handler for setting bit rates.
 *
1578 1579
 * Function configures data rates to firmware using bitrate mask
 * provided by cfg80211.
1580 1581 1582 1583 1584 1585 1586
 */
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);
1587 1588
	u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
	enum ieee80211_band band;
1589
	struct mwifiex_adapter *adapter = priv->adapter;
1590

1591
	if (!priv->media_connected) {
1592 1593
		mwifiex_dbg(adapter, ERROR,
			    "Can not set Tx data rate in disconnected state\n");
1594
		return -EINVAL;
1595 1596
	}

1597
	band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1598

1599
	memset(bitmap_rates, 0, sizeof(bitmap_rates));
1600

1601 1602 1603
	/* Fill HR/DSSS rates. */
	if (band == IEEE80211_BAND_2GHZ)
		bitmap_rates[0] = mask->control[band].legacy & 0x000f;
1604

1605 1606 1607 1608 1609 1610
	/* Fill OFDM rates */
	if (band == IEEE80211_BAND_2GHZ)
		bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4;
	else
		bitmap_rates[1] = mask->control[band].legacy;

1611 1612
	/* Fill HT MCS rates */
	bitmap_rates[2] = mask->control[band].ht_mcs[0];
1613
	if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1614
		bitmap_rates[2] |= mask->control[band].ht_mcs[1] << 8;
1615

1616 1617 1618 1619 1620 1621 1622
       /* 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];
	}

1623 1624
	return mwifiex_send_cmd(priv, HostCmd_CMD_TX_RATE_CFG,
				HostCmd_ACT_GEN_SET, 0, bitmap_rates, true);
1625 1626
}

1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652
/*
 * 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;
1653 1654 1655
		return mwifiex_send_cmd(priv,
					HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
					0, 0, &subsc_evt, true);
1656 1657
	} else {
		subsc_evt.action = HostCmd_ACT_BITWISE_CLR;
1658 1659 1660
		return mwifiex_send_cmd(priv,
					HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
					0, 0, &subsc_evt, true);
1661 1662 1663 1664 1665
	}

	return 0;
}

1666 1667 1668 1669 1670 1671 1672 1673 1674
/* 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);

1675
	if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) {
1676 1677
		mwifiex_dbg(priv->adapter, ERROR,
			    "%s: bss_type mismatched\n", __func__);
1678 1679 1680 1681
		return -EINVAL;
	}

	if (!priv->bss_started) {
1682 1683
		mwifiex_dbg(priv->adapter, ERROR,
			    "%s: bss not started\n", __func__);
1684 1685 1686 1687
		return -EINVAL;
	}

	if (mwifiex_set_mgmt_ies(priv, data)) {
1688 1689
		mwifiex_dbg(priv->adapter, ERROR,
			    "%s: setting mgmt ies failed\n", __func__);
1690 1691 1692 1693 1694 1695
		return -EFAULT;
	}

	return 0;
}

A
Avinash Patil 已提交
1696 1697 1698 1699 1700 1701 1702 1703
/* 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,
1704
			     struct station_del_parameters *params)
A
Avinash Patil 已提交
1705 1706 1707
{
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
	struct mwifiex_sta_node *sta_node;
1708
	u8 deauth_mac[ETH_ALEN];
A
Avinash Patil 已提交
1709 1710
	unsigned long flags;

1711 1712 1713 1714 1715
	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
1716 1717 1718
	if (list_empty(&priv->sta_list) || !priv->bss_started)
		return 0;

1719 1720 1721
	if (!params->mac || is_broadcast_ether_addr(params->mac))
		return 0;

1722 1723
	mwifiex_dbg(priv->adapter, INFO, "%s: mac address %pM\n",
		    __func__, params->mac);
1724

1725
	eth_zero_addr(deauth_mac);
1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737

	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
1738 1739 1740 1741 1742
	}

	return 0;
}

1743 1744 1745 1746 1747 1748 1749 1750 1751 1752 1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 1769
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;
		}
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
	} else {
		struct ieee80211_sta_ht_cap *ht_info;
		int rx_mcs_supp;
		enum ieee80211_band band;

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

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

			ht_info = &adapter->wiphy->bands[band]->ht_cap;
			rx_mcs_supp =
				GET_RXMCSSUPP(adapter->user_dev_mcs_support);
			memset(&ht_info->mcs, 0, adapter->number_of_antenna);
			memset(&ht_info->mcs, 0xff, rx_mcs_supp);
		}
1797 1798 1799 1800 1801
	}

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

1802 1803
	return mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA,
				HostCmd_ACT_GEN_SET, 0, &ant_cfg, true);
1804 1805
}

1806 1807 1808 1809 1810 1811 1812
/* 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);

1813 1814
	mwifiex_abort_cac(priv);

A
Avinash Patil 已提交
1815
	if (mwifiex_del_mgmt_ies(priv))
1816 1817
		mwifiex_dbg(priv->adapter, ERROR,
			    "Failed to delete mgmt IEs!\n");
A
Avinash Patil 已提交
1818

1819
	priv->ap_11n_enabled = 0;
1820
	memset(&priv->bss_cfg, 0, sizeof(priv->bss_cfg));
1821

1822 1823
	if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
			     HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1824 1825
		mwifiex_dbg(priv->adapter, ERROR,
			    "Failed to stop the BSS\n");
1826 1827 1828
		return -1;
	}

1829 1830 1831 1832 1833 1834 1835
	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;
	}

1836 1837 1838 1839
	if (netif_carrier_ok(priv->netdev))
		netif_carrier_off(priv->netdev);
	mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);

1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854
	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);

1855
	if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
A
Avinash Patil 已提交
1856 1857
		return -1;

1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872
	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;
	}
1873 1874 1875 1876 1877
	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;
	}
1878

1879 1880 1881 1882 1883 1884 1885 1886 1887 1888
	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:
1889
		kfree(bss_cfg);
1890 1891 1892
		return -EINVAL;
	}

1893
	mwifiex_uap_set_channel(priv, bss_cfg, params->chandef);
A
Avinash Patil 已提交
1894
	mwifiex_set_uap_rates(bss_cfg, params);
1895

A
Avinash Patil 已提交
1896 1897
	if (mwifiex_set_secure_params(priv, bss_cfg, params)) {
		kfree(bss_cfg);
1898 1899
		mwifiex_dbg(priv->adapter, ERROR,
			    "Failed to parse secuirty parameters!\n");
A
Avinash Patil 已提交
1900 1901 1902
		return -1;
	}

1903
	mwifiex_set_ht_params(priv, bss_cfg, params);
1904 1905 1906 1907 1908 1909 1910

	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);
	}

1911 1912 1913 1914 1915
	if (priv->ap_11ac_enabled)
		mwifiex_set_11ac_ba_params(priv);
	else
		mwifiex_set_ba_params(priv);

1916
	mwifiex_set_wmm_params(priv, bss_cfg, params);
1917

1918 1919 1920
	if (mwifiex_is_11h_active(priv))
		mwifiex_set_tpc_params(priv, bss_cfg, params);

1921 1922 1923
	if (mwifiex_is_11h_active(priv) &&
	    !cfg80211_chandef_dfs_required(wiphy, &params->chandef,
					   priv->bss_mode)) {
1924 1925
		mwifiex_dbg(priv->adapter, INFO,
			    "Disable 11h extensions in FW\n");
1926
		if (mwifiex_11h_activate(priv, false)) {
1927 1928
			mwifiex_dbg(priv->adapter, ERROR,
				    "Failed to disable 11h extensions!!");
1929 1930
			return -1;
		}
1931
		priv->state_11h.is_11h_active = false;
1932 1933
	}

1934
	if (mwifiex_config_start_uap(priv, bss_cfg)) {
1935 1936
		mwifiex_dbg(priv->adapter, ERROR,
			    "Failed to start AP\n");
1937 1938 1939 1940
		kfree(bss_cfg);
		return -1;
	}

1941 1942
	if (mwifiex_set_mgmt_ies(priv, &params->beacon))
		return -1;
1943 1944 1945 1946

	if (!netif_carrier_ok(priv->netdev))
		netif_carrier_on(priv->netdev);
	mwifiex_wake_up_net_dev_queue(priv->netdev, priv->adapter);
1947

1948
	memcpy(&priv->bss_cfg, bss_cfg, sizeof(priv->bss_cfg));
1949 1950 1951 1952
	kfree(bss_cfg);
	return 0;
}

1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964
/*
 * 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
1965 1966 1967
	if (!mwifiex_stop_bg_scan(priv))
		cfg80211_sched_scan_stopped_rtnl(priv->wdev.wiphy);

1968
	if (mwifiex_deauthenticate(priv, NULL))
1969 1970
		return -EFAULT;

1971 1972 1973
	mwifiex_dbg(priv->adapter, MSG,
		    "info: successfully disconnected from %pM:\t"
		    "reason code %d\n", priv->cfg_bssid, reason_code);
1974

1975
	eth_zero_addr(priv->cfg_bssid);
1976
	priv->hs2_enabled = false;
1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995

	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;
1996
	struct cfg80211_bss *bss;
1997
	int ie_len;
1998
	u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
1999
	enum ieee80211_band band;
2000

2001 2002
	if (mwifiex_get_bss_info(priv, &bss_info))
		return -1;
2003 2004 2005 2006 2007

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

	memcpy(&ie_buf[sizeof(struct ieee_types_header)],
2008
	       &bss_info.ssid.ssid, bss_info.ssid.ssid_len);
2009 2010
	ie_len = ie_buf[1] + sizeof(struct ieee_types_header);

2011
	band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
2012
	chan = __ieee80211_get_channel(priv->wdev.wiphy,
2013
			ieee80211_channel_to_frequency(bss_info.bss_chan,
2014
						       band));
2015

2016
	bss = cfg80211_inform_bss(priv->wdev.wiphy, chan,
2017
				  CFG80211_BSS_FTYPE_UNKNOWN,
2018 2019
				  bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
				  0, ie_buf, ie_len, 0, GFP_KERNEL);
2020 2021 2022 2023
	if (bss) {
		cfg80211_put_bss(priv->wdev.wiphy, bss);
		ether_addr_copy(priv->cfg_bssid, bss_info.bssid);
	}
2024

2025
	return 0;
2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039
}

/*
 * 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,
2040
 * the function notifies the CFG802.11 subsystem of the new BSS connection.
2041 2042
 */
static int
2043 2044 2045
mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len,
		       const u8 *ssid, const u8 *bssid, int mode,
		       struct ieee80211_channel *channel,
2046 2047
		       struct cfg80211_connect_params *sme, bool privacy)
{
2048
	struct cfg80211_ssid req_ssid;
2049
	int ret, auth_type = 0;
2050
	struct cfg80211_bss *bss = NULL;
2051
	u8 is_scanning_required = 0;
2052

2053
	memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
2054 2055 2056

	req_ssid.ssid_len = ssid_len;
	if (ssid_len > IEEE80211_MAX_SSID_LEN) {
2057
		mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n");
2058 2059 2060 2061 2062
		return -EINVAL;
	}

	memcpy(req_ssid.ssid, ssid, ssid_len);
	if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
2063
		mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n");
2064 2065 2066
		return -EINVAL;
	}

2067 2068 2069 2070 2071
	/* 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;
2072
	priv->sec_info.encryption_mode = 0;
2073
	priv->sec_info.is_authtype_auto = 0;
2074
	ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1);
2075

2076
	if (mode == NL80211_IFTYPE_ADHOC) {
2077 2078 2079
		/* "privacy" is set only for ad-hoc mode */
		if (privacy) {
			/*
2080
			 * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
2081 2082 2083 2084
			 * 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.
			 */
2085
			priv->sec_info.encryption_mode =
2086
					WLAN_CIPHER_SUITE_WEP104;
2087
			priv->sec_info.authentication_mode =
2088
					NL80211_AUTHTYPE_OPEN_SYSTEM;
2089 2090 2091 2092 2093 2094
		}

		goto done;
	}

	/* Now handle infra mode. "sme" is valid for infra mode only */
2095
	if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
2096
		auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
2097 2098 2099 2100
		priv->sec_info.is_authtype_auto = 1;
	} else {
		auth_type = sme->auth_type;
	}
2101 2102

	if (sme->crypto.n_ciphers_pairwise) {
2103 2104
		priv->sec_info.encryption_mode =
						sme->crypto.ciphers_pairwise[0];
2105
		priv->sec_info.authentication_mode = auth_type;
2106 2107 2108
	}

	if (sme->crypto.cipher_group) {
2109
		priv->sec_info.encryption_mode = sme->crypto.cipher_group;
2110
		priv->sec_info.authentication_mode = auth_type;
2111 2112 2113 2114 2115
	}
	if (sme->ie)
		ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);

	if (sme->key) {
2116
		if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
2117 2118 2119
			mwifiex_dbg(priv->adapter, INFO,
				    "info: setting wep encryption\t"
				    "with key len %d\n", sme->key_len);
2120
			priv->wep_key_curr_index = sme->key_idx;
2121 2122 2123
			ret = mwifiex_set_encode(priv, NULL, sme->key,
						 sme->key_len, sme->key_idx,
						 NULL, 0);
2124 2125 2126
		}
	}
done:
2127 2128 2129 2130 2131 2132 2133 2134 2135
	/*
	 * 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)) {
2136
				mwifiex_dbg(priv->adapter, ERROR, "scan error\n");
2137 2138 2139
				return -EFAULT;
			}
		}
2140

2141 2142
		/* Find the BSS we want using available scan results */
		if (mode == NL80211_IFTYPE_ADHOC)
2143
			bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
2144
					       bssid, ssid, ssid_len,
2145 2146
					       IEEE80211_BSS_TYPE_IBSS,
					       IEEE80211_PRIVACY_ANY);
2147
		else
2148
			bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
2149
					       bssid, ssid, ssid_len,
2150 2151
					       IEEE80211_BSS_TYPE_ESS,
					       IEEE80211_PRIVACY_ANY);
2152 2153 2154

		if (!bss) {
			if (is_scanning_required) {
2155 2156
				mwifiex_dbg(priv->adapter, WARN,
					    "assoc: requested bss not found in scan results\n");
2157 2158 2159 2160
				break;
			}
			is_scanning_required = 1;
		} else {
2161 2162 2163
			mwifiex_dbg(priv->adapter, MSG,
				    "info: trying to associate to '%s' bssid %pM\n",
				    (char *)req_ssid.ssid, bss->bssid);
2164 2165 2166
			memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
			break;
		}
2167 2168
	}

2169 2170 2171
	ret = mwifiex_bss_start(priv, bss, &req_ssid);
	if (ret)
		return ret;
2172

2173
	if (mode == NL80211_IFTYPE_ADHOC) {
2174 2175 2176 2177 2178 2179 2180 2181 2182 2183 2184 2185 2186 2187 2188 2189 2190 2191 2192 2193 2194
		/* 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);
2195
	struct mwifiex_adapter *adapter = priv->adapter;
2196
	int ret;
2197

2198
	if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) {
2199 2200 2201
		mwifiex_dbg(adapter, ERROR,
			    "%s: reject infra assoc request in non-STA role\n",
			    dev->name);
2202
		return -EINVAL;
2203 2204
	}

2205
	if (priv->wdev.current_bss) {
2206 2207
		mwifiex_dbg(adapter, ERROR,
			    "%s: already connected\n", dev->name);
2208 2209 2210
		return -EALREADY;
	}

2211
	if (adapter->surprise_removed || adapter->is_cmd_timedout) {
2212 2213 2214 2215
		mwifiex_dbg(adapter, ERROR,
			    "%s: Ignore connection.\t"
			    "Card removed or FW in bad state\n",
			    dev->name);
2216 2217 2218
		return -EFAULT;
	}

2219 2220 2221
	mwifiex_dbg(adapter, INFO,
		    "info: Trying to associate to %s and bssid %pM\n",
		    (char *)sme->ssid, sme->bssid);
2222

X
Xinming Hu 已提交
2223 2224 2225
	if (!mwifiex_stop_bg_scan(priv))
		cfg80211_sched_scan_stopped_rtnl(priv->wdev.wiphy);

2226
	ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
2227
				     priv->bss_mode, sme->channel, sme, 0);
A
Amitkumar Karwar 已提交
2228 2229 2230 2231
	if (!ret) {
		cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0,
					NULL, 0, WLAN_STATUS_SUCCESS,
					GFP_KERNEL);
2232 2233 2234
		mwifiex_dbg(priv->adapter, MSG,
			    "info: associated to bssid %pM successfully\n",
			    priv->cfg_bssid);
A
Avinash Patil 已提交
2235 2236 2237 2238
		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
2239
	} else {
2240 2241 2242
		mwifiex_dbg(priv->adapter, ERROR,
			    "info: association to bssid %pM failed\n",
			    priv->cfg_bssid);
2243
		eth_zero_addr(priv->cfg_bssid);
2244 2245 2246 2247 2248 2249 2250 2251 2252 2253

		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
2254 2255
	}

2256
	return 0;
2257 2258
}

2259 2260 2261 2262 2263 2264 2265 2266 2267 2268 2269 2270 2271 2272
/*
 * 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;

2273
	if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) {
2274 2275 2276 2277 2278 2279 2280 2281 2282 2283 2284 2285 2286 2287 2288 2289 2290 2291 2292 2293 2294 2295 2296 2297
		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;
			}
		}

2298 2299
		if (cfg80211_get_chandef_type(&params->chandef) !=
						NL80211_CHAN_NO_HT)
2300
			config_bands |= BAND_G | BAND_GN;
2301
	} else {
2302
		if (cfg80211_get_chandef_type(&params->chandef) ==
2303
						NL80211_CHAN_NO_HT)
2304 2305 2306 2307 2308 2309 2310 2311 2312 2313 2314 2315 2316 2317 2318 2319
			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 =
2320 2321 2322 2323
		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);
2324

2325 2326 2327 2328
	mwifiex_dbg(adapter, INFO,
		    "info: set ibss band %d, chan %d, chan offset %d\n",
		    config_bands, priv->adhoc_channel,
		    adapter->sec_chan_offset);
2329 2330 2331 2332

	return 0;
}

2333 2334 2335 2336 2337 2338 2339 2340 2341 2342
/*
 * 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)
{
2343
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2344 2345
	int ret = 0;

2346
	if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
2347 2348 2349
		mwifiex_dbg(priv->adapter, ERROR,
			    "request to join ibss received\t"
			    "when station is not in ibss mode\n");
2350 2351 2352
		goto done;
	}

2353 2354 2355
	mwifiex_dbg(priv->adapter, MSG,
		    "info: trying to join to %s and bssid %pM\n",
		    (char *)params->ssid, params->bssid);
2356

2357 2358
	mwifiex_set_ibss_params(priv, params);

2359
	ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
2360
				     params->bssid, priv->bss_mode,
2361 2362
				     params->chandef.chan, NULL,
				     params->privacy);
2363
done:
A
Amitkumar Karwar 已提交
2364
	if (!ret) {
2365 2366
		cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid,
				     params->chandef.chan, GFP_KERNEL);
2367 2368 2369
		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
2370
	} else {
2371 2372
		mwifiex_dbg(priv->adapter, ERROR,
			    "info: failed creating/joining adhoc network\n");
A
Amitkumar Karwar 已提交
2373 2374
	}

2375 2376 2377 2378 2379 2380 2381 2382 2383 2384 2385 2386
	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)
{
2387
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2388

2389 2390
	mwifiex_dbg(priv->adapter, MSG, "info: disconnecting from essid %pM\n",
		    priv->cfg_bssid);
2391
	if (mwifiex_deauthenticate(priv, NULL))
2392 2393
		return -EFAULT;

2394
	eth_zero_addr(priv->cfg_bssid);
2395 2396 2397 2398 2399 2400 2401 2402

	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
2403
 * the user specified scan configuration. On successful completion,
2404 2405 2406
 * it also informs the results.
 */
static int
J
Johannes Berg 已提交
2407
mwifiex_cfg80211_scan(struct wiphy *wiphy,
2408 2409
		      struct cfg80211_scan_request *request)
{
J
Johannes Berg 已提交
2410
	struct net_device *dev = request->wdev->netdev;
2411
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2412
	int i, offset, ret;
A
Amitkumar Karwar 已提交
2413
	struct ieee80211_channel *chan;
2414
	struct ieee_types_header *ie;
2415
	struct mwifiex_user_scan_cfg *user_scan_cfg;
2416

2417 2418
	mwifiex_dbg(priv->adapter, CMD,
		    "info: received scan request on %s\n", dev->name);
2419

2420 2421 2422 2423
	/* Block scan request if scan operation or scan cleanup when interface
	 * is disabled is in process
	 */
	if (priv->scan_request || priv->scan_aborting) {
2424 2425
		mwifiex_dbg(priv->adapter, WARN,
			    "cmd: Scan already in process..\n");
2426 2427 2428
		return -EBUSY;
	}

X
Xinming Hu 已提交
2429 2430 2431
	if (!mwifiex_stop_bg_scan(priv))
		cfg80211_sched_scan_stopped_rtnl(priv->wdev.wiphy);

2432 2433
	user_scan_cfg = kzalloc(sizeof(*user_scan_cfg), GFP_KERNEL);
	if (!user_scan_cfg)
A
Amitkumar Karwar 已提交
2434
		return -ENOMEM;
2435

B
Bing Zhao 已提交
2436 2437
	priv->scan_request = request;

2438 2439
	user_scan_cfg->num_ssids = request->n_ssids;
	user_scan_cfg->ssid_list = request->ssids;
2440

A
Avinash Patil 已提交
2441
	if (request->ie && request->ie_len) {
2442
		offset = 0;
A
Avinash Patil 已提交
2443 2444 2445 2446
		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;
2447 2448 2449 2450 2451 2452
			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
2453 2454 2455
		}
	}

2456 2457
	for (i = 0; i < min_t(u32, request->n_channels,
			      MWIFIEX_USER_SCAN_CHAN_MAX); i++) {
A
Amitkumar Karwar 已提交
2458
		chan = request->channels[i];
2459 2460
		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
2461

2462
		if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids)
2463
			user_scan_cfg->chan_list[i].scan_type =
2464
						MWIFIEX_SCAN_TYPE_PASSIVE;
A
Amitkumar Karwar 已提交
2465
		else
2466
			user_scan_cfg->chan_list[i].scan_type =
2467
						MWIFIEX_SCAN_TYPE_ACTIVE;
A
Amitkumar Karwar 已提交
2468

2469
		user_scan_cfg->chan_list[i].scan_time = 0;
A
Amitkumar Karwar 已提交
2470
	}
2471

2472 2473 2474 2475 2476
	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;

2477 2478
	ret = mwifiex_scan_networks(priv, user_scan_cfg);
	kfree(user_scan_cfg);
2479
	if (ret) {
2480 2481
		mwifiex_dbg(priv->adapter, ERROR,
			    "scan failed: %d\n", ret);
2482
		priv->scan_aborting = false;
B
Bing Zhao 已提交
2483
		priv->scan_request = NULL;
2484 2485
		return ret;
	}
A
Amitkumar Karwar 已提交
2486

A
Avinash Patil 已提交
2487 2488 2489 2490 2491 2492 2493 2494 2495
	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);
			}
		}
	}
2496 2497 2498
	return 0;
}

X
Xinming Hu 已提交
2499 2500 2501 2502 2503 2504 2505 2506 2507 2508 2509 2510 2511 2512 2513 2514 2515 2516 2517 2518 2519 2520 2521 2522 2523 2524 2525 2526 2527 2528 2529 2530 2531 2532 2533 2534 2535 2536 2537 2538 2539 2540 2541 2542 2543 2544 2545 2546 2547 2548 2549 2550 2551 2552 2553 2554 2555 2556 2557 2558 2559 2560 2561 2562 2563 2564 2565 2566 2567 2568 2569 2570 2571 2572 2573 2574 2575 2576 2577 2578 2579 2580 2581 2582 2583 2584
/* 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;
2585 2586 2587 2588
	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
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

	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;
}

2618 2619 2620 2621 2622 2623 2624
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
2625
	vht_info->cap = adapter->hw_dot_11ac_dev_cap;
2626 2627 2628 2629 2630 2631 2632 2633 2634
	/* 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;
}

2635 2636 2637 2638 2639 2640
/*
 * This function sets up the CFG802.11 specific HT capability fields
 * with default values.
 *
 * The following default values are set -
 *      - HT Supported = True
2641 2642 2643
 *      - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
 *      - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
 *      - HT Capabilities supported by firmware
2644 2645 2646 2647 2648 2649 2650 2651 2652 2653 2654 2655 2656
 *      - 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;
2657 2658
	ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
	ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
2659 2660 2661

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

2662 2663 2664 2665 2666 2667 2668 2669 2670 2671 2672 2673 2674 2675 2676 2677
	/* 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;

2678 2679
	if (adapter->user_dev_mcs_support == HT_STREAM_2X2)
		ht_info->cap |= 3 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2680
	else
2681
		ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2682 2683 2684 2685 2686 2687

	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;

2688 2689 2690 2691 2692 2693 2694 2695 2696 2697 2698 2699 2700 2701 2702
	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;

2703 2704 2705
	ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
	ht_info->cap |= IEEE80211_HT_CAP_SM_PS;

2706 2707
	rx_mcs_supp = GET_RXMCSSUPP(adapter->user_dev_mcs_support);
	/* Set MCS for 1x1/2x2 */
2708 2709 2710
	memset(mcs, 0xff, rx_mcs_supp);
	/* Clear all the other values */
	memset(&mcs[rx_mcs_supp], 0,
2711
	       sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
2712
	if (priv->bss_mode == NL80211_IFTYPE_STATION ||
2713
	    ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2714 2715 2716 2717 2718 2719 2720 2721
		/* 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;
}

2722
/*
2723
 *  create a new virtual interface with the given name and name assign type
2724
 */
2725
struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
2726
					      const char *name,
2727
					      unsigned char name_assign_type,
2728 2729 2730
					      enum nl80211_iftype type,
					      u32 *flags,
					      struct vif_params *params)
2731
{
2732 2733
	struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
	struct mwifiex_private *priv;
2734 2735 2736 2737
	struct net_device *dev;
	void *mdev_priv;

	if (!adapter)
2738
		return ERR_PTR(-EFAULT);
2739 2740 2741 2742 2743

	switch (type) {
	case NL80211_IFTYPE_UNSPECIFIED:
	case NL80211_IFTYPE_STATION:
	case NL80211_IFTYPE_ADHOC:
2744 2745
		if (adapter->curr_iface_comb.sta_intf ==
		    adapter->iface_limit.sta_intf) {
2746 2747
			mwifiex_dbg(adapter, ERROR,
				    "cannot create multiple sta/adhoc ifaces\n");
2748
			return ERR_PTR(-EINVAL);
2749 2750
		}

S
Shengzhen Li 已提交
2751 2752
		priv = mwifiex_get_unused_priv_by_bss_type(
						adapter, MWIFIEX_BSS_TYPE_STA);
2753
		if (!priv) {
2754 2755
			mwifiex_dbg(adapter, ERROR,
				    "could not get free private struct\n");
2756 2757 2758
			return ERR_PTR(-EFAULT);
		}

2759 2760
		priv->wdev.wiphy = wiphy;
		priv->wdev.iftype = NL80211_IFTYPE_STATION;
2761

2762 2763 2764 2765 2766 2767 2768
		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;
2769
		priv->bss_priority = 0;
2770 2771
		priv->bss_role = MWIFIEX_BSS_ROLE_STA;

2772 2773
		break;
	case NL80211_IFTYPE_AP:
2774 2775
		if (adapter->curr_iface_comb.uap_intf ==
		    adapter->iface_limit.uap_intf) {
2776 2777
			mwifiex_dbg(adapter, ERROR,
				    "cannot create multiple AP ifaces\n");
2778
			return ERR_PTR(-EINVAL);
2779 2780
		}

S
Shengzhen Li 已提交
2781 2782
		priv = mwifiex_get_unused_priv_by_bss_type(
						adapter, MWIFIEX_BSS_TYPE_UAP);
2783
		if (!priv) {
2784 2785
			mwifiex_dbg(adapter, ERROR,
				    "could not get free private struct\n");
2786 2787 2788
			return ERR_PTR(-EFAULT);
		}

2789 2790
		priv->wdev.wiphy = wiphy;
		priv->wdev.iftype = NL80211_IFTYPE_AP;
2791 2792 2793

		priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
		priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2794
		priv->bss_priority = 0;
2795 2796 2797 2798
		priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
		priv->bss_started = 0;
		priv->bss_mode = type;

S
Stone Piao 已提交
2799 2800
		break;
	case NL80211_IFTYPE_P2P_CLIENT:
2801 2802
		if (adapter->curr_iface_comb.p2p_intf ==
		    adapter->iface_limit.p2p_intf) {
2803 2804
			mwifiex_dbg(adapter, ERROR,
				    "cannot create multiple P2P ifaces\n");
S
Stone Piao 已提交
2805 2806 2807
			return ERR_PTR(-EINVAL);
		}

S
Shengzhen Li 已提交
2808 2809
		priv = mwifiex_get_unused_priv_by_bss_type(
						adapter, MWIFIEX_BSS_TYPE_P2P);
2810
		if (!priv) {
2811 2812
			mwifiex_dbg(adapter, ERROR,
				    "could not get free private struct\n");
2813 2814
			return ERR_PTR(-EFAULT);
		}
S
Stone Piao 已提交
2815

2816
		priv->wdev.wiphy = wiphy;
S
Stone Piao 已提交
2817 2818 2819
		/* At start-up, wpa_supplicant tries to change the interface
		 * to NL80211_IFTYPE_STATION if it is not managed mode.
		 */
2820
		priv->wdev.iftype = NL80211_IFTYPE_P2P_CLIENT;
2821
		priv->bss_mode = NL80211_IFTYPE_P2P_CLIENT;
S
Stone Piao 已提交
2822 2823 2824 2825 2826 2827 2828 2829 2830 2831 2832 2833

		/* 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;

2834
		if (mwifiex_cfg80211_init_p2p_client(priv)) {
2835 2836 2837
			memset(&priv->wdev, 0, sizeof(priv->wdev));
			priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
			return ERR_PTR(-EFAULT);
2838
		}
2839

2840 2841
		break;
	default:
2842
		mwifiex_dbg(adapter, ERROR, "type not supported\n");
2843
		return ERR_PTR(-EINVAL);
2844 2845
	}

A
Avinash Patil 已提交
2846
	dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name,
2847
			       name_assign_type, ether_setup,
2848
			       IEEE80211_NUM_ACS, 1);
2849
	if (!dev) {
2850 2851
		mwifiex_dbg(adapter, ERROR,
			    "no memory available for netdevice\n");
2852 2853
		memset(&priv->wdev, 0, sizeof(priv->wdev));
		priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2854
		priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2855
		return ERR_PTR(-ENOMEM);
2856 2857
	}

2858 2859 2860 2861
	mwifiex_init_priv_params(priv, dev);
	priv->netdev = dev;

	mwifiex_setup_ht_caps(&wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap, priv);
2862 2863 2864
	if (adapter->is_hw_11ac_capable)
		mwifiex_setup_vht_caps(
			&wiphy->bands[IEEE80211_BAND_2GHZ]->vht_cap, priv);
2865 2866 2867 2868 2869

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

2870 2871 2872 2873
	if ((adapter->config_bands & BAND_A) && adapter->is_hw_11ac_capable)
		mwifiex_setup_vht_caps(
			&wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap, priv);

2874
	dev_net_set(dev, wiphy_net(wiphy));
2875
	dev->ieee80211_ptr = &priv->wdev;
2876 2877 2878 2879 2880 2881 2882
	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;
2883
	dev->ethtool_ops = &mwifiex_ethtool_ops;
2884 2885 2886 2887 2888 2889 2890 2891

	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)) {
2892 2893
		mwifiex_dbg(adapter, ERROR,
			    "cannot register virtual network device\n");
2894 2895
		free_netdev(dev);
		priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2896
		priv->netdev = NULL;
2897 2898 2899
		memset(&priv->wdev, 0, sizeof(priv->wdev));
		priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
		return ERR_PTR(-EFAULT);
2900 2901
	}

2902
	priv->dfs_cac_workqueue = alloc_workqueue("MWIFIEX_DFS_CAC%s",
2903 2904
						  WQ_HIGHPRI |
						  WQ_MEM_RECLAIM |
2905
						  WQ_UNBOUND, 1, name);
2906
	if (!priv->dfs_cac_workqueue) {
2907 2908
		mwifiex_dbg(adapter, ERROR,
			    "cannot register virtual network device\n");
2909 2910 2911 2912 2913 2914 2915 2916 2917 2918
		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);

2919
	priv->dfs_chan_sw_workqueue = alloc_workqueue("MWIFIEX_DFS_CHSW%s",
2920
						      WQ_HIGHPRI | WQ_UNBOUND |
2921
						      WQ_MEM_RECLAIM, 1, name);
2922
	if (!priv->dfs_chan_sw_workqueue) {
2923 2924
		mwifiex_dbg(adapter, ERROR,
			    "cannot register virtual network device\n");
2925 2926 2927 2928 2929 2930 2931 2932 2933 2934 2935
		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);

2936 2937
	sema_init(&priv->async_sem, 1);

2938 2939
	mwifiex_dbg(adapter, INFO,
		    "info: %s: Marvell 802.11 Adapter\n", dev->name);
2940 2941 2942 2943

#ifdef CONFIG_DEBUG_FS
	mwifiex_dev_debugfs_init(priv);
#endif
2944

2945 2946 2947 2948 2949 2950 2951 2952 2953 2954 2955 2956 2957
	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:
2958
		mwifiex_dbg(adapter, ERROR, "type not supported\n");
2959 2960 2961
		return ERR_PTR(-EINVAL);
	}

2962
	return &priv->wdev;
2963 2964 2965 2966 2967 2968
}
EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);

/*
 * del_virtual_intf: remove the virtual interface determined by dev
 */
2969
int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
2970
{
2971
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
2972
	struct mwifiex_adapter *adapter = priv->adapter;
2973
	struct sk_buff *skb, *tmp;
2974 2975 2976 2977 2978

#ifdef CONFIG_DEBUG_FS
	mwifiex_dev_debugfs_remove(priv);
#endif

X
Xinming Hu 已提交
2979 2980 2981
	if (priv->sched_scanning)
		priv->sched_scanning = false;

2982
	mwifiex_stop_net_dev_queue(priv->netdev, adapter);
2983

2984 2985 2986
	skb_queue_walk_safe(&priv->bypass_txq, skb, tmp)
		mwifiex_write_data_complete(priv->adapter, skb, 0, -1);

2987 2988 2989
	if (netif_carrier_ok(priv->netdev))
		netif_carrier_off(priv->netdev);

2990 2991
	if (wdev->netdev->reg_state == NETREG_REGISTERED)
		unregister_netdevice(wdev->netdev);
2992

2993 2994 2995 2996 2997 2998
	if (priv->dfs_cac_workqueue) {
		flush_workqueue(priv->dfs_cac_workqueue);
		destroy_workqueue(priv->dfs_cac_workqueue);
		priv->dfs_cac_workqueue = NULL;
	}

2999 3000 3001 3002 3003
	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;
	}
3004
	/* Clear the priv in adapter */
3005
	priv->netdev->ieee80211_ptr = NULL;
3006
	priv->netdev = NULL;
3007
	priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
3008 3009 3010

	priv->media_connected = false;

3011 3012 3013 3014
	switch (priv->bss_mode) {
	case NL80211_IFTYPE_UNSPECIFIED:
	case NL80211_IFTYPE_STATION:
	case NL80211_IFTYPE_ADHOC:
3015
		adapter->curr_iface_comb.sta_intf--;
3016 3017
		break;
	case NL80211_IFTYPE_AP:
3018
		adapter->curr_iface_comb.uap_intf--;
3019 3020 3021
		break;
	case NL80211_IFTYPE_P2P_CLIENT:
	case NL80211_IFTYPE_P2P_GO:
3022
		adapter->curr_iface_comb.p2p_intf--;
3023 3024
		break;
	default:
3025 3026
		mwifiex_dbg(adapter, ERROR,
			    "del_virtual_intf: type not supported\n");
3027 3028 3029
		break;
	}

3030 3031
	priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;

3032 3033 3034 3035
	if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA ||
	    GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP)
		kfree(priv->hist_data);

3036 3037 3038 3039
	return 0;
}
EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf);

A
Amitkumar Karwar 已提交
3040
static bool
3041 3042
mwifiex_is_pattern_supported(struct cfg80211_pkt_pattern *pat, s8 *byte_seq,
			     u8 max_byte_seq)
A
Amitkumar Karwar 已提交
3043 3044 3045 3046 3047 3048 3049 3050 3051 3052 3053 3054 3055 3056 3057 3058 3059
{
	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;
			}

3060 3061 3062 3063 3064 3065
			/* wildcard bytes record as the offset
			 * before the valid byte
			 */
			if (!valid_byte_cnt && !dont_care_byte)
				pat->pkt_offset++;

3066
			if (valid_byte_cnt > max_byte_seq)
A
Amitkumar Karwar 已提交
3067 3068 3069 3070
				return false;
		}
	}

3071
	byte_seq[max_byte_seq] = valid_byte_cnt;
A
Amitkumar Karwar 已提交
3072 3073 3074 3075

	return true;
}

3076
#ifdef CONFIG_PM
3077 3078 3079 3080 3081 3082 3083 3084 3085 3086 3087 3088 3089 3090 3091 3092 3093 3094 3095 3096 3097 3098 3099 3100 3101 3102 3103 3104 3105 3106 3107 3108 3109 3110 3111 3112 3113 3114 3115 3116 3117 3118 3119 3120 3121 3122 3123 3124 3125 3126 3127 3128 3129 3130 3131 3132 3133 3134
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
3135
{
3136
	int i, filt_num = 0, ret = 0;
A
Amitkumar Karwar 已提交
3137
	bool first_pat = true;
A
Amitkumar Karwar 已提交
3138
	u8 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ + 1];
A
Amitkumar Karwar 已提交
3139 3140 3141 3142 3143 3144 3145 3146 3147
	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],
3148 3149
					byte_seq,
					MWIFIEX_MEF_MAX_BYTESEQ)) {
3150 3151
			mwifiex_dbg(priv->adapter, ERROR,
				    "Pattern not supported\n");
A
Amitkumar Karwar 已提交
3152 3153 3154 3155 3156
			return -EOPNOTSUPP;
		}

		if (!wowlan->patterns[i].pkt_offset) {
			if (!(byte_seq[0] & 0x01) &&
A
Amitkumar Karwar 已提交
3157
			    (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 1)) {
3158
				mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST;
A
Amitkumar Karwar 已提交
3159 3160
				continue;
			} else if (is_broadcast_ether_addr(byte_seq)) {
3161
				mef_cfg->criteria |= MWIFIEX_CRITERIA_BROADCAST;
A
Amitkumar Karwar 已提交
3162 3163
				continue;
			} else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
A
Amitkumar Karwar 已提交
3164
				    (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 2)) ||
A
Amitkumar Karwar 已提交
3165
				   (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
A
Amitkumar Karwar 已提交
3166
				    (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 3))) {
3167
				mef_cfg->criteria |= MWIFIEX_CRITERIA_MULTICAST;
A
Amitkumar Karwar 已提交
3168 3169 3170 3171 3172
				continue;
			}
		}
		mef_entry->filter[filt_num].repeat = 1;
		mef_entry->filter[filt_num].offset =
3173
			wowlan->patterns[i].pkt_offset;
A
Amitkumar Karwar 已提交
3174
		memcpy(mef_entry->filter[filt_num].byte_seq, byte_seq,
3175
				sizeof(byte_seq));
A
Amitkumar Karwar 已提交
3176 3177
		mef_entry->filter[filt_num].filt_type = TYPE_EQ;

C
chunfan chen 已提交
3178
		if (first_pat) {
A
Amitkumar Karwar 已提交
3179
			first_pat = false;
C
chunfan chen 已提交
3180 3181
			mwifiex_dbg(priv->adapter, INFO, "Wake on patterns\n");
		} else {
A
Amitkumar Karwar 已提交
3182
			mef_entry->filter[filt_num].filt_action = TYPE_AND;
C
chunfan chen 已提交
3183
		}
A
Amitkumar Karwar 已提交
3184 3185 3186 3187 3188

		filt_num++;
	}

	if (wowlan->magic_pkt) {
3189
		mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST;
A
Amitkumar Karwar 已提交
3190 3191
		mef_entry->filter[filt_num].repeat = 16;
		memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
3192
				ETH_ALEN);
A
Amitkumar Karwar 已提交
3193
		mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3194
			ETH_ALEN;
3195
		mef_entry->filter[filt_num].offset = 28;
A
Amitkumar Karwar 已提交
3196 3197 3198
		mef_entry->filter[filt_num].filt_type = TYPE_EQ;
		if (filt_num)
			mef_entry->filter[filt_num].filt_action = TYPE_OR;
3199 3200 3201 3202

		filt_num++;
		mef_entry->filter[filt_num].repeat = 16;
		memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
3203
				ETH_ALEN);
3204
		mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3205
			ETH_ALEN;
3206 3207 3208
		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
3209
		mwifiex_dbg(priv->adapter, INFO, "Wake on magic packet\n");
A
Amitkumar Karwar 已提交
3210
	}
3211 3212 3213 3214 3215 3216 3217 3218 3219 3220 3221 3222 3223 3224 3225 3226 3227 3228 3229 3230 3231 3232 3233 3234 3235
	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]);

3236
	if (wowlan->n_patterns || wowlan->magic_pkt) {
3237 3238
		ret = mwifiex_set_wowlan_mef_entry(priv, &mef_cfg,
						   &mef_entry[1], wowlan);
3239 3240 3241
		if (ret)
			goto err;
	}
A
Amitkumar Karwar 已提交
3242 3243 3244

	if (!mef_cfg.criteria)
		mef_cfg.criteria = MWIFIEX_CRITERIA_BROADCAST |
3245 3246
			MWIFIEX_CRITERIA_UNICAST |
			MWIFIEX_CRITERIA_MULTICAST;
A
Amitkumar Karwar 已提交
3247

3248
	ret = mwifiex_send_cmd(priv, HostCmd_CMD_MEF_CFG,
3249 3250
			HostCmd_ACT_GEN_SET, 0,
			&mef_cfg, true);
3251 3252

err:
A
Amitkumar Karwar 已提交
3253 3254 3255 3256
	kfree(mef_entry);
	return ret;
}

3257 3258 3259 3260
static int mwifiex_cfg80211_suspend(struct wiphy *wiphy,
				    struct cfg80211_wowlan *wowlan)
{
	struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3261
	struct mwifiex_ds_hs_cfg hs_cfg;
3262 3263 3264 3265 3266 3267 3268 3269 3270
	int i, ret = 0;
	struct mwifiex_private *priv;

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

	mwifiex_cancel_all_pending_cmd(adapter);
3271 3272

	if (!wowlan) {
3273 3274
		mwifiex_dbg(adapter, ERROR,
			    "None of the WOWLAN triggers enabled\n");
3275 3276 3277
		return 0;
	}

3278 3279
	priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);

3280
	if (!priv->media_connected && !wowlan->nd_config) {
3281 3282
		mwifiex_dbg(adapter, ERROR,
			    "Can not configure WOWLAN in disconnected state\n");
3283 3284 3285
		return 0;
	}

3286 3287
	ret = mwifiex_set_mef_filter(priv, wowlan);
	if (ret) {
3288
		mwifiex_dbg(adapter, ERROR, "Failed to set MEF filter\n");
3289
		return ret;
3290 3291
	}

3292 3293 3294 3295 3296 3297 3298 3299 3300 3301
	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;
		mwifiex_cfg80211_sched_scan_start(wiphy, priv->netdev,
						  wowlan->nd_config);
	}

3302
	if (wowlan->disconnect) {
3303
		hs_cfg.conditions |= HS_CFG_COND_MAC_EVENT;
C
chunfan chen 已提交
3304
		mwifiex_dbg(priv->adapter, INFO, "Wake on device disconnect\n");
3305 3306
	}

3307 3308 3309 3310 3311 3312 3313 3314 3315 3316 3317
	hs_cfg.is_invoke_hostcmd = false;
	hs_cfg.gpio = adapter->hs_cfg.gpio;
	hs_cfg.gap = adapter->hs_cfg.gap;
	ret = mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_SET,
				    MWIFIEX_SYNC_CMD, &hs_cfg);
	if (ret) {
		mwifiex_dbg(adapter, ERROR,
			    "Failed to set HS params\n");
		return ret;
	}

3318 3319 3320
	return ret;
}

A
Amitkumar Karwar 已提交
3321 3322
static int mwifiex_cfg80211_resume(struct wiphy *wiphy)
{
3323 3324 3325 3326 3327 3328 3329 3330 3331 3332 3333 3334 3335 3336 3337 3338 3339 3340 3341 3342 3343 3344 3345 3346 3347 3348 3349 3350 3351 3352 3353 3354 3355 3356 3357 3358 3359 3360 3361 3362 3363 3364 3365 3366 3367 3368 3369 3370 3371 3372 3373 3374 3375 3376 3377 3378 3379 3380
	struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
	struct mwifiex_private *priv =
		mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
	struct mwifiex_ds_wakeup_reason wakeup_reason;
	struct cfg80211_wowlan_wakeup wakeup_report;
	int i;

	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;
	case CONTROL_FRAME_MATCHED:
		break;
	case	MANAGEMENT_FRAME_MATCHED:
		break;
	default:
		break;
	}

	if ((wakeup_reason.hs_wakeup_reason > 0) &&
	    (wakeup_reason.hs_wakeup_reason <= 7))
		cfg80211_report_wowlan_wakeup(&priv->wdev, &wakeup_report,
					      GFP_KERNEL);

	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
3381 3382 3383 3384 3385 3386 3387 3388 3389 3390 3391 3392
	return 0;
}

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

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

3393 3394 3395 3396 3397 3398 3399 3400 3401 3402 3403 3404 3405 3406 3407 3408 3409 3410 3411 3412 3413 3414 3415 3416 3417 3418 3419 3420 3421 3422 3423 3424 3425 3426 3427 3428 3429 3430
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)) {
3431 3432
			mwifiex_dbg(priv->adapter, ERROR,
				    "Pattern not supported\n");
3433 3434 3435 3436 3437 3438 3439 3440
			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) {
3441 3442
				mwifiex_dbg(priv->adapter, ERROR,
					    "Multiple packet types not allowed\n");
3443 3444 3445 3446 3447 3448 3449 3450 3451 3452 3453 3454 3455 3456 3457 3458 3459 3460 3461 3462 3463 3464
				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) {
3465 3466
		mwifiex_dbg(priv->adapter, ERROR,
			    "Packet type can not be determined\n");
3467 3468 3469 3470 3471 3472 3473 3474 3475 3476 3477 3478 3479 3480 3481 3482 3483
		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) {
3484 3485
		mwifiex_dbg(adapter, WARN,
			    "Disable coalesce and reset all previous rules\n");
3486 3487 3488
		return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
					HostCmd_ACT_GEN_SET, 0,
					&coalesce_cfg, true);
3489 3490 3491 3492 3493 3494 3495
	}

	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) {
3496 3497
			mwifiex_dbg(adapter, ERROR,
				    "Recheck the patterns provided for rule %d\n",
3498 3499 3500 3501 3502
				i + 1);
			return ret;
		}
	}

3503 3504
	return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
				HostCmd_ACT_GEN_SET, 0, &coalesce_cfg, true);
3505 3506
}

3507 3508 3509 3510 3511
/* 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,
3512
			   const u8 *peer, u8 action_code, u8 dialog_token,
3513
			   u16 status_code, u32 peer_capability,
3514 3515
			   bool initiator, const u8 *extra_ies,
			   size_t extra_ies_len)
3516 3517 3518 3519 3520 3521 3522 3523 3524 3525 3526 3527 3528
{
	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:
3529 3530 3531
		mwifiex_dbg(priv->adapter, MSG,
			    "Send TDLS Setup Request to %pM status_code=%d\n",
			    peer, status_code);
A
Avinash Patil 已提交
3532
		mwifiex_add_auto_tdls_peer(priv, peer);
3533 3534 3535 3536 3537
		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
3538
		mwifiex_add_auto_tdls_peer(priv, peer);
3539 3540 3541
		mwifiex_dbg(priv->adapter, MSG,
			    "Send TDLS Setup Response to %pM status_code=%d\n",
			    peer, status_code);
3542 3543 3544 3545 3546
		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:
3547 3548 3549
		mwifiex_dbg(priv->adapter, MSG,
			    "Send TDLS Confirm to %pM status_code=%d\n", peer,
			    status_code);
3550 3551 3552 3553 3554
		ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
						   dialog_token, status_code,
						   extra_ies, extra_ies_len);
		break;
	case WLAN_TDLS_TEARDOWN:
3555 3556
		mwifiex_dbg(priv->adapter, MSG,
			    "Send TDLS Tear down to %pM\n", peer);
3557 3558 3559 3560 3561
		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:
3562 3563
		mwifiex_dbg(priv->adapter, MSG,
			    "Send TDLS Discovery Request to %pM\n", peer);
3564 3565 3566 3567 3568
		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:
3569 3570
		mwifiex_dbg(priv->adapter, MSG,
			    "Send TDLS Discovery Response to %pM\n", peer);
3571 3572 3573 3574 3575
		ret = mwifiex_send_tdls_action_frame(priv, peer, action_code,
						   dialog_token, status_code,
						   extra_ies, extra_ies_len);
		break;
	default:
3576 3577
		mwifiex_dbg(priv->adapter, ERROR,
			    "Unknown TDLS mgmt/action frame %pM\n", peer);
3578 3579 3580 3581 3582 3583 3584
		ret = -EINVAL;
		break;
	}

	return ret;
}

3585 3586
static int
mwifiex_cfg80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
3587
			   const u8 *peer, enum nl80211_tdls_operation action)
3588 3589 3590 3591 3592 3593 3594 3595 3596 3597 3598
{
	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;

3599 3600
	mwifiex_dbg(priv->adapter, MSG,
		    "TDLS peer=%pM, oper=%d\n", peer, action);
3601 3602 3603 3604 3605 3606 3607 3608 3609 3610

	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!*/
3611 3612
		mwifiex_dbg(priv->adapter, ERROR,
			    "tdls_oper: teardown from driver not supported\n");
3613 3614 3615
		return -EINVAL;
	case NL80211_TDLS_SETUP:
		/* shouldn't happen!*/
3616 3617
		mwifiex_dbg(priv->adapter, ERROR,
			    "tdls_oper: setup from driver not supported\n");
3618 3619 3620
		return -EINVAL;
	case NL80211_TDLS_DISCOVERY_REQ:
		/* shouldn't happen!*/
3621 3622
		mwifiex_dbg(priv->adapter, ERROR,
			    "tdls_oper: discovery from driver not supported\n");
3623 3624
		return -EINVAL;
	default:
3625 3626
		mwifiex_dbg(priv->adapter, ERROR,
			    "tdls_oper: operation not supported\n");
3627 3628 3629 3630 3631 3632
		return -ENOTSUPP;
	}

	return mwifiex_tdls_oper(priv, peer, action);
}

3633 3634 3635 3636 3637 3638 3639 3640 3641 3642 3643 3644 3645 3646 3647 3648 3649 3650 3651 3652 3653 3654 3655 3656 3657 3658 3659 3660 3661 3662 3663 3664 3665 3666 3667 3668 3669 3670 3671 3672 3673 3674 3675 3676 3677 3678 3679 3680 3681 3682 3683 3684 3685 3686 3687 3688 3689 3690 3691 3692 3693 3694 3695 3696 3697 3698
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);
}

3699
static int
3700 3701
mwifiex_cfg80211_add_station(struct wiphy *wiphy, struct net_device *dev,
			     const u8 *mac, struct station_parameters *params)
3702 3703 3704 3705 3706 3707 3708 3709 3710 3711 3712 3713 3714
{
	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);
}

3715 3716 3717 3718 3719 3720 3721 3722 3723 3724
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) {
3725 3726
		mwifiex_dbg(priv->adapter, ERROR,
			    "radar detection: scan in process...\n");
3727 3728 3729 3730 3731 3732 3733 3734 3735 3736 3737 3738 3739 3740
		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) {
3741 3742
		mwifiex_dbg(priv->adapter, ERROR,
			    "Could not parse channel switch announcement IE\n");
3743 3744 3745 3746 3747 3748 3749 3750 3751 3752 3753
		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))
3754 3755
		mwifiex_dbg(priv->adapter, ERROR,
			    "Failed to delete mgmt IEs!\n");
3756 3757

	if (mwifiex_set_mgmt_ies(priv, &params->beacon_csa)) {
3758 3759
		mwifiex_dbg(priv->adapter, ERROR,
			    "%s: setting mgmt ies failed\n", __func__);
3760 3761 3762 3763 3764 3765 3766 3767 3768 3769 3770 3771 3772
		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;
}

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 3809 3810 3811
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;
	enum ieee80211_band band;
	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);

		if (curr_bss->bcn_ht_oper) {
			second_chan_offset = curr_bss->bcn_ht_oper->ht_param &
					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;
}

3812 3813 3814 3815 3816 3817 3818 3819 3820 3821
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) {
3822 3823
		mwifiex_dbg(priv->adapter, ERROR,
			    "radar detection: scan already in process...\n");
3824 3825 3826
		return -EBUSY;
	}

3827
	if (!mwifiex_is_11h_active(priv)) {
3828 3829
		mwifiex_dbg(priv->adapter, INFO,
			    "Enable 11h extensions in FW\n");
3830
		if (mwifiex_11h_activate(priv, true)) {
3831 3832
			mwifiex_dbg(priv->adapter, ERROR,
				    "Failed to activate 11h extensions!!");
3833 3834 3835 3836 3837
			return -1;
		}
		priv->state_11h.is_11h_active = true;
	}

3838 3839 3840 3841 3842 3843 3844 3845 3846 3847 3848 3849 3850 3851 3852
	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;
}

3853
static int
3854 3855 3856
mwifiex_cfg80211_change_station(struct wiphy *wiphy, struct net_device *dev,
				const u8 *mac,
				struct station_parameters *params)
3857 3858 3859 3860 3861 3862 3863 3864 3865 3866 3867 3868 3869 3870 3871 3872 3873 3874 3875 3876
{
	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;
}

3877 3878
/* station cfg80211 operations */
static struct cfg80211_ops mwifiex_cfg80211_ops = {
3879 3880
	.add_virtual_intf = mwifiex_add_virtual_intf,
	.del_virtual_intf = mwifiex_del_virtual_intf,
3881 3882 3883 3884 3885
	.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,
3886
	.dump_station = mwifiex_cfg80211_dump_station,
3887
	.dump_survey = mwifiex_cfg80211_dump_survey,
3888 3889 3890 3891 3892
	.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,
3893
	.mgmt_tx = mwifiex_cfg80211_mgmt_tx,
3894
	.mgmt_frame_register = mwifiex_cfg80211_mgmt_frame_register,
3895 3896
	.remain_on_channel = mwifiex_cfg80211_remain_on_channel,
	.cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel,
3897 3898 3899
	.set_default_key = mwifiex_cfg80211_set_default_key,
	.set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
	.set_tx_power = mwifiex_cfg80211_set_tx_power,
3900
	.set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
3901 3902
	.start_ap = mwifiex_cfg80211_start_ap,
	.stop_ap = mwifiex_cfg80211_stop_ap,
3903
	.change_beacon = mwifiex_cfg80211_change_beacon,
3904
	.set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config,
3905
	.set_antenna = mwifiex_cfg80211_set_antenna,
A
Avinash Patil 已提交
3906
	.del_station = mwifiex_cfg80211_del_station,
X
Xinming Hu 已提交
3907 3908
	.sched_scan_start = mwifiex_cfg80211_sched_scan_start,
	.sched_scan_stop = mwifiex_cfg80211_sched_scan_stop,
A
Amitkumar Karwar 已提交
3909 3910 3911 3912 3913
#ifdef CONFIG_PM
	.suspend = mwifiex_cfg80211_suspend,
	.resume = mwifiex_cfg80211_resume,
	.set_wakeup = mwifiex_cfg80211_set_wakeup,
#endif
3914
	.set_coalesce = mwifiex_cfg80211_set_coalesce,
3915
	.tdls_mgmt = mwifiex_cfg80211_tdls_mgmt,
3916
	.tdls_oper = mwifiex_cfg80211_tdls_oper,
3917 3918
	.tdls_channel_switch = mwifiex_cfg80211_tdls_chan_switch,
	.tdls_cancel_channel_switch = mwifiex_cfg80211_tdls_cancel_chan_switch,
3919
	.add_station = mwifiex_cfg80211_add_station,
3920
	.change_station = mwifiex_cfg80211_change_station,
3921
	.get_channel = mwifiex_cfg80211_get_channel,
3922
	.start_radar_detection = mwifiex_cfg80211_start_radar_detection,
3923
	.channel_switch = mwifiex_cfg80211_channel_switch,
3924 3925
};

3926 3927
#ifdef CONFIG_PM
static const struct wiphy_wowlan_support mwifiex_wowlan_support = {
3928 3929
	.flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT |
		WIPHY_WOWLAN_NET_DETECT,
A
Amitkumar Karwar 已提交
3930
	.n_patterns = MWIFIEX_MEF_MAX_FILTERS,
3931 3932 3933
	.pattern_min_len = 1,
	.pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
	.max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
3934
	.max_nd_match_sets = MWIFIEX_MAX_ND_MATCH_SETS,
3935 3936 3937
};
#endif

3938 3939 3940 3941 3942 3943 3944 3945 3946 3947 3948
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;
}

3949 3950 3951 3952 3953 3954 3955 3956 3957
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,
};

3958 3959 3960 3961 3962 3963 3964 3965 3966 3967 3968 3969 3970 3971 3972 3973 3974 3975 3976
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;
}

3977 3978 3979 3980 3981 3982 3983
/*
 * 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.
 */
3984 3985

int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
3986
{
3987 3988
	int ret;
	void *wdev_priv;
3989 3990
	struct wiphy *wiphy;
	struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
3991
	u8 *country_code;
3992
	u32 thr, retry;
3993

3994 3995 3996 3997
	/* create a new wiphy for use with cfg80211 */
	wiphy = wiphy_new(&mwifiex_cfg80211_ops,
			  sizeof(struct mwifiex_adapter *));
	if (!wiphy) {
3998 3999
		mwifiex_dbg(adapter, ERROR,
			    "%s: creating new wiphy\n", __func__);
4000 4001
		return -ENOMEM;
	}
4002 4003
	wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
	wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
4004
	wiphy->mgmt_stypes = mwifiex_mgmt_stypes;
4005
	wiphy->max_remain_on_channel_duration = 5000;
4006 4007
	wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
				 BIT(NL80211_IFTYPE_ADHOC) |
S
Stone Piao 已提交
4008 4009
				 BIT(NL80211_IFTYPE_P2P_CLIENT) |
				 BIT(NL80211_IFTYPE_P2P_GO) |
4010 4011 4012 4013 4014 4015 4016
				 BIT(NL80211_IFTYPE_AP);

	wiphy->bands[IEEE80211_BAND_2GHZ] = &mwifiex_band_2ghz;
	if (adapter->config_bands & BAND_A)
		wiphy->bands[IEEE80211_BAND_5GHZ] = &mwifiex_band_5ghz;
	else
		wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
4017

4018
	if (adapter->drcs_enabled && ISSUPP_DRCS_ENABLED(adapter->fw_cap_info))
4019 4020 4021
		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;
4022 4023
	else
		wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta;
4024 4025
	wiphy->n_iface_combinations = 1;

4026
	/* Initialize cipher suits */
4027 4028
	wiphy->cipher_suites = mwifiex_cipher_suites;
	wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
4029

4030 4031 4032 4033
	if (adapter->region_code)
		wiphy->regulatory_flags |= REGULATORY_DISABLE_BEACON_HINTS |
					   REGULATORY_COUNTRY_IE_IGNORE;

4034
	ether_addr_copy(wiphy->perm_addr, adapter->perm_addr);
4035
	wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
4036
	wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
4037
			WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD |
4038
			WIPHY_FLAG_AP_UAPSD |
X
Xinming Hu 已提交
4039
			WIPHY_FLAG_SUPPORTS_SCHED_SCAN |
4040
			WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
4041 4042
			WIPHY_FLAG_HAS_CHANNEL_SWITCH |
			WIPHY_FLAG_PS_ON_BY_DEFAULT;
4043 4044 4045 4046 4047

	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
4048
#ifdef CONFIG_PM
4049
	wiphy->wowlan = &mwifiex_wowlan_support;
A
Amitkumar Karwar 已提交
4050 4051
#endif

4052 4053
	wiphy->coalesce = &mwifiex_coalesce_support;

4054
	wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
4055 4056
				    NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
				    NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
4057

X
Xinming Hu 已提交
4058 4059 4060 4061
	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;

4062 4063
	wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1;
	wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1;
4064

4065
	wiphy->features |= NL80211_FEATURE_HT_IBSS |
4066
			   NL80211_FEATURE_INACTIVITY_TIMER |
4067
			   NL80211_FEATURE_NEED_OBSS_SCAN;
4068

4069 4070 4071
	if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info))
		wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;

4072 4073 4074
	if (adapter->fw_api_ver == MWIFIEX_FW_V15)
		wiphy->features |= NL80211_FEATURE_SK_TX_STATUS;

4075
	/* Reserve space for mwifiex specific private data for BSS */
4076
	wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv);
4077

4078
	wiphy->reg_notifier = mwifiex_reg_notifier;
4079

4080
	/* Set struct mwifiex_adapter pointer in wiphy_priv */
4081
	wdev_priv = wiphy_priv(wiphy);
4082
	*(unsigned long *)wdev_priv = (unsigned long)adapter;
4083

4084
	set_wiphy_dev(wiphy, priv->adapter->dev);
4085

4086
	ret = wiphy_register(wiphy);
4087
	if (ret < 0) {
4088 4089
		mwifiex_dbg(adapter, ERROR,
			    "%s: wiphy_register failed: %d\n", __func__, ret);
4090
		wiphy_free(wiphy);
4091 4092
		return ret;
	}
4093 4094

	if (reg_alpha2 && mwifiex_is_valid_alpha2(reg_alpha2)) {
4095 4096
		mwifiex_dbg(adapter, INFO,
			    "driver hint alpha2: %2.2s\n", reg_alpha2);
4097 4098
		regulatory_hint(wiphy, reg_alpha2);
	} else {
4099 4100 4101 4102 4103 4104 4105 4106 4107
		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");
		}
4108
	}
4109

4110 4111
	mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
			 HostCmd_ACT_GEN_GET, FRAG_THRESH_I, &thr, true);
4112
	wiphy->frag_threshold = thr;
4113 4114
	mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
			 HostCmd_ACT_GEN_GET, RTS_THRESH_I, &thr, true);
4115
	wiphy->rts_threshold = thr;
4116 4117
	mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
			 HostCmd_ACT_GEN_GET, SHORT_RETRY_LIM_I, &retry, true);
4118
	wiphy->retry_short = (u8) retry;
4119 4120
	mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
			 HostCmd_ACT_GEN_GET, LONG_RETRY_LIM_I, &retry, true);
4121 4122
	wiphy->retry_long = (u8) retry;

4123
	adapter->wiphy = wiphy;
4124 4125
	return ret;
}