cfg80211.c 52.2 KB
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/*
 * Marvell Wireless LAN device driver: CFG80211
 *
 * Copyright (C) 2011, Marvell International Ltd.
 *
 * This software file (the "File") is distributed by Marvell International
 * Ltd. under the terms of the GNU General Public License Version 2, June 1991
 * (the "License").  You may use, redistribute and/or modify this File in
 * accordance with the terms and conditions of the License, a copy of which
 * is available by writing to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
 * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
 *
 * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
 * ARE EXPRESSLY DISCLAIMED.  The License provides additional details about
 * this warranty disclaimer.
 */

#include "cfg80211.h"
#include "main.h"

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

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

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/*
 * 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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static u8
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mwifiex_chan_type_to_sec_chan_offset(enum nl80211_channel_type chan_type)
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{
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	switch (chan_type) {
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	case NL80211_CHAN_NO_HT:
	case NL80211_CHAN_HT20:
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		return IEEE80211_HT_PARAM_CHA_SEC_NONE;
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	case NL80211_CHAN_HT40PLUS:
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		return IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
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	case NL80211_CHAN_HT40MINUS:
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		return IEEE80211_HT_PARAM_CHA_SEC_BELOW;
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	default:
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		return IEEE80211_HT_PARAM_CHA_SEC_NONE;
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	}
}

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

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

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

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

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

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	priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);

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	return mwifiex_set_tx_power(priv, &power_cfg);
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}

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

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

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

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

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

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

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

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

	sband = wiphy->bands[band];

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

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

		if (ch->hw_value == next_chan + 1 &&
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		    ch->max_reg_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_reg_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_async(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
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				   HostCmd_ACT_GEN_SET, 0, NULL)) {
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		wiphy_err(wiphy, "11D: setting domain info in FW\n");
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		return -1;
	}
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	return 0;
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}

/*
 * CFG802.11 regulatory domain callback function.
 *
 * This function is called when the regulatory domain is changed due to the
 * following reasons -
 *      - Set by driver
 *      - Set by system core
 *      - Set by user
 *      - Set bt Country IE
 */
static int mwifiex_reg_notifier(struct wiphy *wiphy,
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				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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	wiphy_dbg(wiphy, "info: cfg80211 regulatory domain callback for %c%c\n",
		  request->alpha2[0], request->alpha2[1]);
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	memcpy(adapter->country_code, request->alpha2, sizeof(request->alpha2));
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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:
		break;
		/* Todo: apply driver specific changes in channel flags based
		   on the request initiator if necessary. */
	case NL80211_REGDOM_SET_BY_COUNTRY_IE:
		break;
	}
	mwifiex_send_domain_info_cmd_fw(wiphy);

	return 0;
}

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

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

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	return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
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				    HostCmd_ACT_GEN_SET, RTS_THRESH_I,
				    &rts_thr);
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}

/*
 * 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)
{
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	struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
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	struct mwifiex_private *priv;
	struct mwifiex_uap_bss_param *bss_cfg;
	int ret, bss_started, i;

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

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

			mwifiex_set_sys_config_invalid_data(bss_cfg);

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

			bss_started = priv->bss_started;

			ret = mwifiex_send_cmd_sync(priv,
						    HostCmd_CMD_UAP_BSS_STOP,
						    HostCmd_ACT_GEN_SET, 0,
						    NULL);
			if (ret) {
				wiphy_err(wiphy, "Failed to stop the BSS\n");
				kfree(bss_cfg);
				return ret;
			}

			ret = mwifiex_send_cmd_async(priv,
						     HostCmd_CMD_UAP_SYS_CONFIG,
						     HostCmd_ACT_GEN_SET,
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						     UAP_BSS_PARAMS_I, bss_cfg);
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			kfree(bss_cfg);

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

			ret = mwifiex_send_cmd_async(priv,
						     HostCmd_CMD_UAP_BSS_START,
						     HostCmd_ACT_GEN_SET, 0,
						     NULL);
			if (ret) {
				wiphy_err(wiphy, "Failed to start BSS\n");
				return ret;
			}

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

	return 0;
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}

/*
 * 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)
{
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	int ret;
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	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);

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	switch (dev->ieee80211_ptr->iftype) {
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	case NL80211_IFTYPE_ADHOC:
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		switch (type) {
		case NL80211_IFTYPE_STATION:
			break;
		case NL80211_IFTYPE_UNSPECIFIED:
			wiphy_warn(wiphy, "%s: kept type as IBSS\n", dev->name);
		case NL80211_IFTYPE_ADHOC:	/* This shouldn't happen */
			return 0;
		case NL80211_IFTYPE_AP:
		default:
			wiphy_err(wiphy, "%s: changing to %d not supported\n",
				  dev->name, type);
			return -EOPNOTSUPP;
		}
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		break;
	case NL80211_IFTYPE_STATION:
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		switch (type) {
		case NL80211_IFTYPE_ADHOC:
			break;
		case NL80211_IFTYPE_UNSPECIFIED:
			wiphy_warn(wiphy, "%s: kept type as STA\n", dev->name);
		case NL80211_IFTYPE_STATION:	/* This shouldn't happen */
			return 0;
		case NL80211_IFTYPE_AP:
		default:
			wiphy_err(wiphy, "%s: changing to %d not supported\n",
				  dev->name, type);
			return -EOPNOTSUPP;
		}
		break;
	case NL80211_IFTYPE_AP:
		switch (type) {
		case NL80211_IFTYPE_UNSPECIFIED:
			wiphy_warn(wiphy, "%s: kept type as AP\n", dev->name);
		case NL80211_IFTYPE_AP:		/* This shouldn't happen */
			return 0;
		case NL80211_IFTYPE_ADHOC:
		case NL80211_IFTYPE_STATION:
		default:
			wiphy_err(wiphy, "%s: changing to %d not supported\n",
				  dev->name, type);
			return -EOPNOTSUPP;
		}
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		break;
	default:
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		wiphy_err(wiphy, "%s: unknown iftype: %d\n",
			  dev->name, dev->ieee80211_ptr->iftype);
		return -EOPNOTSUPP;
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	}

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	dev->ieee80211_ptr->iftype = type;
	priv->bss_mode = type;
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	mwifiex_deauthenticate(priv, NULL);
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	priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
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	ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_SET_BSS_MODE,
				    HostCmd_ACT_GEN_SET, 0, NULL);
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	return ret;
}

/*
 * This function dumps the station information on a buffer.
 *
 * The following information are shown -
 *      - Total bytes transmitted
 *      - Total bytes received
 *      - Total packets transmitted
 *      - Total packets received
 *      - Signal quality level
 *      - Transmission rate
 */
static int
mwifiex_dump_station_info(struct mwifiex_private *priv,
			  struct station_info *sinfo)
{
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	u32 rate;
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	sinfo->filled = STATION_INFO_RX_BYTES | STATION_INFO_TX_BYTES |
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			STATION_INFO_RX_PACKETS | STATION_INFO_TX_PACKETS |
			STATION_INFO_TX_BITRATE |
			STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
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	/* Get signal information from the firmware */
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	if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_RSSI_INFO,
				  HostCmd_ACT_GEN_GET, 0, NULL)) {
		dev_err(priv->adapter->dev, "failed to get signal information\n");
		return -EFAULT;
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	}

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

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	/* Get DTIM period information from firmware */
	mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
			      HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
			      &priv->dtim_period);

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	/*
	 * Bit 0 in tx_htinfo indicates that current Tx rate is 11n rate. Valid
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	 * MCS index values for us are 0 to 15.
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	 */
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	if ((priv->tx_htinfo & BIT(0)) && (priv->tx_rate < 16)) {
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		sinfo->txrate.mcs = priv->tx_rate;
		sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
		/* 40MHz rate */
		if (priv->tx_htinfo & BIT(1))
			sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
		/* SGI enabled */
		if (priv->tx_htinfo & BIT(2))
			sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
	}

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	sinfo->signal_avg = priv->bcn_rssi_avg;
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	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;
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	sinfo->signal = priv->bcn_rssi_avg;
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	/* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
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	sinfo->txrate.legacy = rate * 5;
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	if (priv->bss_mode == NL80211_IFTYPE_STATION) {
		sinfo->filled |= STATION_INFO_BSS_PARAM;
		sinfo->bss_param.flags = 0;
		if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
						WLAN_CAPABILITY_SHORT_PREAMBLE)
			sinfo->bss_param.flags |=
					BSS_PARAM_FLAGS_SHORT_PREAMBLE;
		if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
						WLAN_CAPABILITY_SHORT_SLOT_TIME)
			sinfo->bss_param.flags |=
					BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
615
		sinfo->bss_param.dtim_period = priv->dtim_period;
616 617 618 619
		sinfo->bss_param.beacon_interval =
			priv->curr_bss_params.bss_descriptor.beacon_period;
	}

620
	return 0;
621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639
}

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

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

640
	return mwifiex_dump_station_info(priv, sinfo);
641 642
}

643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659
/*
 * CFG802.11 operation handler to dump station information.
 */
static int
mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
			      int idx, u8 *mac, struct station_info *sinfo)
{
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);

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

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

	return mwifiex_dump_station_info(priv, sinfo);
}

660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699
/* 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,
700
	.n_bitrates = ARRAY_SIZE(mwifiex_rates),
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};

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),
740 741
	.bitrates = mwifiex_rates + 4,
	.n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
742 743 744 745 746 747 748 749 750 751
};


/* 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,
752
	WLAN_CIPHER_SUITE_AES_CMAC,
753 754
};

755 756 757
/*
 * CFG802.11 operation handler for setting bit rates.
 *
758 759
 * Function configures data rates to firmware using bitrate mask
 * provided by cfg80211.
760 761 762 763 764 765 766
 */
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);
767 768
	u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
	enum ieee80211_band band;
769

770 771 772 773
	if (!priv->media_connected) {
		dev_err(priv->adapter->dev,
			"Can not set Tx data rate in disconnected state\n");
		return -EINVAL;
774 775
	}

776
	band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
777

778
	memset(bitmap_rates, 0, sizeof(bitmap_rates));
779

780 781 782
	/* Fill HR/DSSS rates. */
	if (band == IEEE80211_BAND_2GHZ)
		bitmap_rates[0] = mask->control[band].legacy & 0x000f;
783

784 785 786 787 788 789 790 791 792 793 794 795 796
	/* 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;

	/* Fill MCS rates */
	bitmap_rates[2] = mask->control[band].mcs[0];
	if (priv->adapter->hw_dev_mcs_support == HT_STREAM_2X2)
		bitmap_rates[2] |= mask->control[band].mcs[1] << 8;

	return mwifiex_send_cmd_sync(priv, HostCmd_CMD_TX_RATE_CFG,
				     HostCmd_ACT_GEN_SET, 0, bitmap_rates);
797 798
}

799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837
/*
 * 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;
		return mwifiex_send_cmd_sync(priv,
					     HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
					     0, 0, &subsc_evt);
	} else {
		subsc_evt.action = HostCmd_ACT_BITWISE_CLR;
		return mwifiex_send_cmd_sync(priv,
					     HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
					     0, 0, &subsc_evt);
	}

	return 0;
}

838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864
/* 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);

	if (priv->bss_type != MWIFIEX_BSS_TYPE_UAP) {
		wiphy_err(wiphy, "%s: bss_type mismatched\n", __func__);
		return -EINVAL;
	}

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

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

	return 0;
}

865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900
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;
		}
	}

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

	return mwifiex_send_cmd_sync(priv, HostCmd_CMD_RF_ANTENNA,
				     HostCmd_ACT_GEN_SET, 0, &ant_cfg);
}

901 902 903 904 905 906 907
/* cfg80211 operation handler for stop ap.
 * Function stops BSS running at uAP interface.
 */
static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
{
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);

A
Avinash Patil 已提交
908 909 910
	if (mwifiex_del_mgmt_ies(priv))
		wiphy_err(wiphy, "Failed to delete mgmt IEs!\n");

911 912
	priv->ap_11n_enabled = 0;

913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932
	if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_UAP_BSS_STOP,
				  HostCmd_ACT_GEN_SET, 0, NULL)) {
		wiphy_err(wiphy, "Failed to stop the BSS\n");
		return -1;
	}

	return 0;
}

/* cfg80211 operation handler for start_ap.
 * Function sets beacon period, DTIM period, SSID and security into
 * AP config structure.
 * AP is configured with these settings and BSS is started.
 */
static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
				     struct net_device *dev,
				     struct cfg80211_ap_settings *params)
{
	struct mwifiex_uap_bss_param *bss_cfg;
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
933
	u8 config_bands = 0;
934

A
Avinash Patil 已提交
935 936
	if (priv->bss_type != MWIFIEX_BSS_TYPE_UAP)
		return -1;
937
	if (mwifiex_set_mgmt_ies(priv, &params->beacon))
938
		return -1;
A
Avinash Patil 已提交
939

940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955
	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;
	}

956 957 958 959 960 961 962 963 964 965
	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:
966
		kfree(bss_cfg);
967 968 969
		return -EINVAL;
	}

970 971 972
	bss_cfg->channel =
	    (u8)ieee80211_frequency_to_channel(params->channel->center_freq);

973 974
	/* Set appropriate bands */
	if (params->channel->band == IEEE80211_BAND_2GHZ) {
A
Avinash Patil 已提交
975 976
		bss_cfg->band_cfg = BAND_CONFIG_BG;

977 978 979 980 981
		if (params->channel_type == NL80211_CHAN_NO_HT)
			config_bands = BAND_B | BAND_G;
		else
			config_bands = BAND_B | BAND_G | BAND_GN;
	} else {
A
Avinash Patil 已提交
982 983
		bss_cfg->band_cfg = BAND_CONFIG_A;

984 985 986 987
		if (params->channel_type == NL80211_CHAN_NO_HT)
			config_bands = BAND_A;
		else
			config_bands = BAND_AN | BAND_A;
988 989
	}

990 991 992 993
	if (!((config_bands | priv->adapter->fw_bands) &
	      ~priv->adapter->fw_bands))
		priv->adapter->config_bands = config_bands;

A
Avinash Patil 已提交
994
	mwifiex_set_uap_rates(bss_cfg, params);
995 996
	mwifiex_send_domain_info_cmd_fw(wiphy);

A
Avinash Patil 已提交
997 998 999 1000 1001 1002
	if (mwifiex_set_secure_params(priv, bss_cfg, params)) {
		kfree(bss_cfg);
		wiphy_err(wiphy, "Failed to parse secuirty parameters!\n");
		return -1;
	}

1003 1004
	mwifiex_set_ht_params(priv, bss_cfg, params);

1005 1006 1007 1008 1009 1010 1011 1012
	if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_UAP_BSS_STOP,
				  HostCmd_ACT_GEN_SET, 0, NULL)) {
		wiphy_err(wiphy, "Failed to stop the BSS\n");
		kfree(bss_cfg);
		return -1;
	}

	if (mwifiex_send_cmd_async(priv, HostCmd_CMD_UAP_SYS_CONFIG,
1013 1014
				   HostCmd_ACT_GEN_SET,
				   UAP_BSS_PARAMS_I, bss_cfg)) {
1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027
		wiphy_err(wiphy, "Failed to set the SSID\n");
		kfree(bss_cfg);
		return -1;
	}

	kfree(bss_cfg);

	if (mwifiex_send_cmd_async(priv, HostCmd_CMD_UAP_BSS_START,
				   HostCmd_ACT_GEN_SET, 0, NULL)) {
		wiphy_err(wiphy, "Failed to start the BSS\n");
		return -1;
	}

1028 1029 1030 1031 1032 1033 1034 1035 1036 1037
	if (priv->sec_info.wep_enabled)
		priv->curr_pkt_filter |= HostCmd_ACT_MAC_WEP_ENABLE;
	else
		priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_WEP_ENABLE;

	if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_MAC_CONTROL,
				  HostCmd_ACT_GEN_SET, 0,
				  &priv->curr_pkt_filter))
		return -1;

1038 1039 1040
	return 0;
}

1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052
/*
 * 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);

1053
	if (mwifiex_deauthenticate(priv, NULL))
1054 1055 1056 1057 1058
		return -EFAULT;

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

A
Amitkumar Karwar 已提交
1059
	memset(priv->cfg_bssid, 0, ETH_ALEN);
1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078

	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;
1079
	struct cfg80211_bss *bss;
1080
	int ie_len;
1081
	u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
1082
	enum ieee80211_band band;
1083

1084 1085
	if (mwifiex_get_bss_info(priv, &bss_info))
		return -1;
1086 1087 1088 1089 1090

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

	memcpy(&ie_buf[sizeof(struct ieee_types_header)],
1091
	       &bss_info.ssid.ssid, bss_info.ssid.ssid_len);
1092 1093
	ie_len = ie_buf[1] + sizeof(struct ieee_types_header);

1094
	band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1095 1096
	chan = __ieee80211_get_channel(priv->wdev->wiphy,
			ieee80211_channel_to_frequency(bss_info.bss_chan,
1097
						       band));
1098

1099
	bss = cfg80211_inform_bss(priv->wdev->wiphy, chan,
1100 1101
				  bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
				  0, ie_buf, ie_len, 0, GFP_KERNEL);
1102
	cfg80211_put_bss(bss);
1103 1104
	memcpy(priv->cfg_bssid, bss_info.bssid, ETH_ALEN);

1105
	return 0;
1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119
}

/*
 * 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,
1120
 * the function notifies the CFG802.11 subsystem of the new BSS connection.
1121 1122 1123 1124 1125 1126
 */
static int
mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len, u8 *ssid,
		       u8 *bssid, int mode, struct ieee80211_channel *channel,
		       struct cfg80211_connect_params *sme, bool privacy)
{
1127
	struct cfg80211_ssid req_ssid;
1128
	int ret, auth_type = 0;
1129
	struct cfg80211_bss *bss = NULL;
1130
	u8 is_scanning_required = 0, config_bands = 0;
1131

1132
	memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146

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

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

	/* disconnect before try to associate */
1147
	mwifiex_deauthenticate(priv, NULL);
1148

1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160
	if (channel) {
		if (mode == NL80211_IFTYPE_STATION) {
			if (channel->band == IEEE80211_BAND_2GHZ)
				config_bands = BAND_B | BAND_G | BAND_GN;
			else
				config_bands = BAND_A | BAND_AN;

			if (!((config_bands | priv->adapter->fw_bands) &
			      ~priv->adapter->fw_bands))
				priv->adapter->config_bands = config_bands;
		}
	}
1161

1162 1163 1164 1165 1166
	/* 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;
1167
	priv->sec_info.encryption_mode = 0;
1168
	priv->sec_info.is_authtype_auto = 0;
1169
	ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1);
1170

1171
	if (mode == NL80211_IFTYPE_ADHOC) {
1172 1173 1174
		/* "privacy" is set only for ad-hoc mode */
		if (privacy) {
			/*
1175
			 * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
1176 1177 1178 1179
			 * 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.
			 */
1180
			priv->sec_info.encryption_mode =
1181
					WLAN_CIPHER_SUITE_WEP104;
1182
			priv->sec_info.authentication_mode =
1183
					NL80211_AUTHTYPE_OPEN_SYSTEM;
1184 1185 1186 1187 1188 1189
		}

		goto done;
	}

	/* Now handle infra mode. "sme" is valid for infra mode only */
1190
	if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
1191
		auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
1192 1193 1194 1195
		priv->sec_info.is_authtype_auto = 1;
	} else {
		auth_type = sme->auth_type;
	}
1196 1197

	if (sme->crypto.n_ciphers_pairwise) {
1198 1199
		priv->sec_info.encryption_mode =
						sme->crypto.ciphers_pairwise[0];
1200
		priv->sec_info.authentication_mode = auth_type;
1201 1202 1203
	}

	if (sme->crypto.cipher_group) {
1204
		priv->sec_info.encryption_mode = sme->crypto.cipher_group;
1205
		priv->sec_info.authentication_mode = auth_type;
1206 1207 1208 1209 1210
	}
	if (sme->ie)
		ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);

	if (sme->key) {
1211
		if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
1212 1213 1214
			dev_dbg(priv->adapter->dev,
				"info: setting wep encryption"
				" with key len %d\n", sme->key_len);
1215
			priv->wep_key_curr_index = sme->key_idx;
1216 1217 1218
			ret = mwifiex_set_encode(priv, NULL, sme->key,
						 sme->key_len, sme->key_idx,
						 NULL, 0);
1219 1220 1221
		}
	}
done:
1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234
	/*
	 * Scan entries are valid for some time (15 sec). So we can save one
	 * active scan time if we just try cfg80211_get_bss first. If it fails
	 * then request scan and cfg80211_get_bss() again for final output.
	 */
	while (1) {
		if (is_scanning_required) {
			/* Do specific SSID scanning */
			if (mwifiex_request_scan(priv, &req_ssid)) {
				dev_err(priv->adapter->dev, "scan error\n");
				return -EFAULT;
			}
		}
1235

1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249
		/* Find the BSS we want using available scan results */
		if (mode == NL80211_IFTYPE_ADHOC)
			bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
					       bssid, ssid, ssid_len,
					       WLAN_CAPABILITY_IBSS,
					       WLAN_CAPABILITY_IBSS);
		else
			bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
					       bssid, ssid, ssid_len,
					       WLAN_CAPABILITY_ESS,
					       WLAN_CAPABILITY_ESS);

		if (!bss) {
			if (is_scanning_required) {
1250 1251
				dev_warn(priv->adapter->dev,
					 "assoc: requested bss not found in scan results\n");
1252 1253 1254 1255
				break;
			}
			is_scanning_required = 1;
		} else {
1256 1257 1258
			dev_dbg(priv->adapter->dev,
				"info: trying to associate to '%s' bssid %pM\n",
				(char *) req_ssid.ssid, bss->bssid);
1259 1260 1261
			memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
			break;
		}
1262 1263
	}

1264
	if (mwifiex_bss_start(priv, bss, &req_ssid))
1265 1266
		return -EFAULT;

1267
	if (mode == NL80211_IFTYPE_ADHOC) {
1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290
		/* 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);
	int ret = 0;

1291
	if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
1292 1293 1294 1295 1296
		wiphy_err(wiphy, "received infra assoc request "
				"when station is in ibss mode\n");
		goto done;
	}

1297 1298 1299 1300 1301
	if (priv->bss_mode == NL80211_IFTYPE_AP) {
		wiphy_err(wiphy, "skip association request for AP interface\n");
		goto done;
	}

1302
	wiphy_dbg(wiphy, "info: Trying to associate to %s and bssid %pM\n",
1303
		  (char *) sme->ssid, sme->bssid);
1304 1305

	ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
1306
				     priv->bss_mode, sme->channel, sme, 0);
1307
done:
A
Amitkumar Karwar 已提交
1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321
	if (!ret) {
		cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0,
					NULL, 0, WLAN_STATUS_SUCCESS,
					GFP_KERNEL);
		dev_dbg(priv->adapter->dev,
			"info: associated to bssid %pM successfully\n",
			priv->cfg_bssid);
	} else {
		dev_dbg(priv->adapter->dev,
			"info: association to bssid %pM failed\n",
			priv->cfg_bssid);
		memset(priv->cfg_bssid, 0, ETH_ALEN);
	}

1322 1323 1324
	return ret;
}

1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394
/*
 * This function sets following parameters for ibss network.
 *  -  channel
 *  -  start band
 *  -  11n flag
 *  -  secondary channel offset
 */
static int mwifiex_set_ibss_params(struct mwifiex_private *priv,
				   struct cfg80211_ibss_params *params)
{
	struct wiphy *wiphy = priv->wdev->wiphy;
	struct mwifiex_adapter *adapter = priv->adapter;
	int index = 0, i;
	u8 config_bands = 0;

	if (params->channel->band == IEEE80211_BAND_2GHZ) {
		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;
			}
		}

		if (params->channel_type != NL80211_CHAN_NO_HT)
			config_bands |= BAND_GN;
	} else {
		if (params->channel_type == NL80211_CHAN_NO_HT)
			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 =
		mwifiex_chan_type_to_sec_chan_offset(params->channel_type);
	priv->adhoc_channel =
		ieee80211_frequency_to_channel(params->channel->center_freq);

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

	return 0;
}

1395 1396 1397 1398 1399 1400 1401 1402 1403 1404
/*
 * 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)
{
1405
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1406 1407
	int ret = 0;

1408
	if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
1409 1410 1411 1412 1413 1414
		wiphy_err(wiphy, "request to join ibss received "
				"when station is not in ibss mode\n");
		goto done;
	}

	wiphy_dbg(wiphy, "info: trying to join to %s and bssid %pM\n",
1415
		  (char *) params->ssid, params->bssid);
1416

1417 1418
	mwifiex_set_ibss_params(priv, params);

1419
	ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
1420 1421
				     params->bssid, priv->bss_mode,
				     params->channel, NULL, params->privacy);
1422
done:
A
Amitkumar Karwar 已提交
1423 1424 1425 1426 1427 1428 1429 1430 1431 1432
	if (!ret) {
		cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid, GFP_KERNEL);
		dev_dbg(priv->adapter->dev,
			"info: joined/created adhoc network with bssid"
			" %pM successfully\n", priv->cfg_bssid);
	} else {
		dev_dbg(priv->adapter->dev,
			"info: failed creating/joining adhoc network\n");
	}

1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444
	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)
{
1445
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1446 1447

	wiphy_dbg(wiphy, "info: disconnecting from essid %pM\n",
1448
		  priv->cfg_bssid);
1449
	if (mwifiex_deauthenticate(priv, NULL))
1450 1451
		return -EFAULT;

A
Amitkumar Karwar 已提交
1452
	memset(priv->cfg_bssid, 0, ETH_ALEN);
1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464

	return 0;
}

/*
 * CFG802.11 operation handler for scan request.
 *
 * This function issues a scan request to the firmware based upon
 * the user specified scan configuration. On successfull completion,
 * it also informs the results.
 */
static int
J
Johannes Berg 已提交
1465
mwifiex_cfg80211_scan(struct wiphy *wiphy,
1466 1467
		      struct cfg80211_scan_request *request)
{
J
Johannes Berg 已提交
1468
	struct net_device *dev = request->wdev->netdev;
1469
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
A
Amitkumar Karwar 已提交
1470 1471
	int i;
	struct ieee80211_channel *chan;
1472 1473 1474 1475 1476

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

	priv->scan_request = request;

A
Amitkumar Karwar 已提交
1477
	priv->user_scan_cfg = kzalloc(sizeof(struct mwifiex_user_scan_cfg),
1478
				      GFP_KERNEL);
A
Amitkumar Karwar 已提交
1479 1480 1481 1482
	if (!priv->user_scan_cfg) {
		dev_err(priv->adapter->dev, "failed to alloc scan_req\n");
		return -ENOMEM;
	}
1483 1484 1485 1486

	priv->user_scan_cfg->num_ssids = request->n_ssids;
	priv->user_scan_cfg->ssid_list = request->ssids;

A
Avinash Patil 已提交
1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497
	if (request->ie && request->ie_len) {
		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;
			memcpy(&priv->vs_ie[i].ie, request->ie,
			       request->ie_len);
			break;
		}
	}

A
Amitkumar Karwar 已提交
1498 1499 1500 1501 1502 1503 1504
	for (i = 0; i < request->n_channels; i++) {
		chan = request->channels[i];
		priv->user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
		priv->user_scan_cfg->chan_list[i].radio_type = chan->band;

		if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
			priv->user_scan_cfg->chan_list[i].scan_type =
1505
						MWIFIEX_SCAN_TYPE_PASSIVE;
A
Amitkumar Karwar 已提交
1506 1507
		else
			priv->user_scan_cfg->chan_list[i].scan_type =
1508
						MWIFIEX_SCAN_TYPE_ACTIVE;
A
Amitkumar Karwar 已提交
1509 1510 1511

		priv->user_scan_cfg->chan_list[i].scan_time = 0;
	}
1512
	if (mwifiex_scan_networks(priv, priv->user_scan_cfg))
A
Amitkumar Karwar 已提交
1513 1514
		return -EFAULT;

A
Avinash Patil 已提交
1515 1516 1517 1518 1519 1520 1521 1522 1523
	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);
			}
		}
	}
1524 1525 1526 1527 1528 1529 1530 1531 1532
	return 0;
}

/*
 * This function sets up the CFG802.11 specific HT capability fields
 * with default values.
 *
 * The following default values are set -
 *      - HT Supported = True
1533 1534 1535
 *      - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
 *      - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
 *      - HT Capabilities supported by firmware
1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548
 *      - 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;
1549 1550
	ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
	ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
1551 1552 1553

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

1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583
	/* Fill HT capability information */
	if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
		ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
	else
		ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;

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

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

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

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

	ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
	ht_info->cap |= IEEE80211_HT_CAP_SM_PS;

	rx_mcs_supp = GET_RXMCSSUPP(adapter->hw_dev_mcs_support);
1584 1585 1586 1587
	/* Set MCS for 1x1 */
	memset(mcs, 0xff, rx_mcs_supp);
	/* Clear all the other values */
	memset(&mcs[rx_mcs_supp], 0,
1588
	       sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
1589
	if (priv->bss_mode == NL80211_IFTYPE_STATION ||
1590
	    ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
1591 1592 1593 1594 1595 1596 1597 1598
		/* 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;
}

1599 1600 1601
/*
 *  create a new virtual interface with the given name
 */
1602 1603 1604 1605 1606
struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
					      char *name,
					      enum nl80211_iftype type,
					      u32 *flags,
					      struct vif_params *params)
1607
{
1608 1609
	struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
	struct mwifiex_private *priv;
1610 1611
	struct net_device *dev;
	void *mdev_priv;
1612
	struct wireless_dev *wdev;
1613 1614

	if (!adapter)
1615
		return ERR_PTR(-EFAULT);
1616 1617 1618 1619 1620

	switch (type) {
	case NL80211_IFTYPE_UNSPECIFIED:
	case NL80211_IFTYPE_STATION:
	case NL80211_IFTYPE_ADHOC:
1621
		priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
1622
		if (priv->bss_mode) {
1623 1624
			wiphy_err(wiphy,
				  "cannot create multiple sta/adhoc ifaces\n");
1625
			return ERR_PTR(-EINVAL);
1626 1627
		}

1628 1629
		wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
		if (!wdev)
1630
			return ERR_PTR(-ENOMEM);
1631 1632 1633 1634 1635

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

1636 1637 1638 1639 1640 1641 1642
		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;
1643
		priv->bss_priority = 0;
1644 1645 1646
		priv->bss_role = MWIFIEX_BSS_ROLE_STA;
		priv->bss_num = 0;

1647 1648 1649 1650 1651 1652
		break;
	case NL80211_IFTYPE_AP:
		priv = adapter->priv[MWIFIEX_BSS_TYPE_UAP];

		if (priv->bss_mode) {
			wiphy_err(wiphy, "Can't create multiple AP interfaces");
1653
			return ERR_PTR(-EINVAL);
1654 1655 1656 1657
		}

		wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
		if (!wdev)
1658
			return ERR_PTR(-ENOMEM);
1659 1660 1661 1662 1663 1664 1665

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

		priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
		priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
1666
		priv->bss_priority = 0;
1667 1668 1669 1670 1671
		priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
		priv->bss_started = 0;
		priv->bss_num = 0;
		priv->bss_mode = type;

1672 1673 1674
		break;
	default:
		wiphy_err(wiphy, "type not supported\n");
1675
		return ERR_PTR(-EINVAL);
1676 1677 1678 1679 1680 1681
	}

	dev = alloc_netdev_mq(sizeof(struct mwifiex_private *), name,
			      ether_setup, 1);
	if (!dev) {
		wiphy_err(wiphy, "no memory available for netdevice\n");
1682 1683
		priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
		return ERR_PTR(-ENOMEM);
1684 1685
	}

1686 1687 1688 1689 1690 1691 1692 1693 1694
	mwifiex_init_priv_params(priv, dev);
	priv->netdev = dev;

	mwifiex_setup_ht_caps(&wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap, priv);

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

1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713
	dev_net_set(dev, wiphy_net(wiphy));
	dev->ieee80211_ptr = priv->wdev;
	dev->ieee80211_ptr->iftype = priv->bss_mode;
	memcpy(dev->dev_addr, wiphy->perm_addr, ETH_ALEN);
	memcpy(dev->perm_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;

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

	SET_NETDEV_DEV(dev, adapter->dev);

	/* Register network device */
	if (register_netdevice(dev)) {
		wiphy_err(wiphy, "cannot register virtual network device\n");
1714 1715 1716
		free_netdev(dev);
		priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
		return ERR_PTR(-EFAULT);
1717 1718 1719 1720 1721 1722 1723 1724 1725 1726
	}

	sema_init(&priv->async_sem, 1);
	priv->scan_pending_on_block = false;

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

#ifdef CONFIG_DEBUG_FS
	mwifiex_dev_debugfs_init(priv);
#endif
1727
	return wdev;
1728 1729 1730 1731 1732 1733
}
EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);

/*
 * del_virtual_intf: remove the virtual interface determined by dev
 */
1734
int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
1735
{
1736
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
1737 1738 1739 1740 1741 1742 1743 1744 1745 1746 1747

#ifdef CONFIG_DEBUG_FS
	mwifiex_dev_debugfs_remove(priv);
#endif

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

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

1748 1749
	if (wdev->netdev->reg_state == NETREG_REGISTERED)
		unregister_netdevice(wdev->netdev);
1750

1751 1752
	if (wdev->netdev->reg_state == NETREG_UNREGISTERED)
		free_netdev(wdev->netdev);
1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 1763 1764

	/* Clear the priv in adapter */
	priv->netdev = NULL;

	priv->media_connected = false;

	priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;

	return 0;
}
EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf);

1765 1766
/* station cfg80211 operations */
static struct cfg80211_ops mwifiex_cfg80211_ops = {
1767 1768
	.add_virtual_intf = mwifiex_add_virtual_intf,
	.del_virtual_intf = mwifiex_del_virtual_intf,
1769 1770 1771 1772 1773
	.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,
1774
	.dump_station = mwifiex_cfg80211_dump_station,
1775 1776 1777 1778 1779 1780 1781 1782
	.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,
	.set_default_key = mwifiex_cfg80211_set_default_key,
	.set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
	.set_tx_power = mwifiex_cfg80211_set_tx_power,
1783
	.set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
1784 1785
	.start_ap = mwifiex_cfg80211_start_ap,
	.stop_ap = mwifiex_cfg80211_stop_ap,
1786
	.change_beacon = mwifiex_cfg80211_change_beacon,
1787
	.set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config,
1788
	.set_antenna = mwifiex_cfg80211_set_antenna,
1789 1790 1791 1792 1793 1794 1795 1796 1797
};

/*
 * 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.
 */
1798 1799

int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
1800
{
1801 1802
	int ret;
	void *wdev_priv;
1803 1804
	struct wiphy *wiphy;
	struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
1805
	u8 *country_code;
1806

1807 1808 1809 1810 1811
	/* create a new wiphy for use with cfg80211 */
	wiphy = wiphy_new(&mwifiex_cfg80211_ops,
			  sizeof(struct mwifiex_adapter *));
	if (!wiphy) {
		dev_err(adapter->dev, "%s: creating new wiphy\n", __func__);
1812 1813
		return -ENOMEM;
	}
1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824
	wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
	wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
	wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
				 BIT(NL80211_IFTYPE_ADHOC) |
				 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;
1825

1826 1827 1828
	wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta;
	wiphy->n_iface_combinations = 1;

1829
	/* Initialize cipher suits */
1830 1831
	wiphy->cipher_suites = mwifiex_cipher_suites;
	wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
1832

1833 1834
	memcpy(wiphy->perm_addr, priv->curr_addr, ETH_ALEN);
	wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
1835 1836 1837 1838 1839
	wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
			WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD;

	wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
				    NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2;
1840

1841 1842
	wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1;
	wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1;
1843

1844 1845
	wiphy->features = NL80211_FEATURE_HT_IBSS;

1846
	/* Reserve space for mwifiex specific private data for BSS */
1847
	wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv);
1848

1849
	wiphy->reg_notifier = mwifiex_reg_notifier;
1850

1851
	/* Set struct mwifiex_adapter pointer in wiphy_priv */
1852
	wdev_priv = wiphy_priv(wiphy);
1853
	*(unsigned long *)wdev_priv = (unsigned long)adapter;
1854

1855
	set_wiphy_dev(wiphy, priv->adapter->dev);
1856

1857
	ret = wiphy_register(wiphy);
1858
	if (ret < 0) {
1859 1860 1861
		dev_err(adapter->dev,
			"%s: wiphy_register failed: %d\n", __func__, ret);
		wiphy_free(wiphy);
1862 1863
		return ret;
	}
1864
	country_code = mwifiex_11d_code_2_region(priv->adapter->region_code);
1865 1866 1867
	if (country_code)
		dev_info(adapter->dev,
			 "ignoring F/W country code %2.2s\n", country_code);
1868

1869
	adapter->wiphy = wiphy;
1870 1871
	return ret;
}