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![Amitkumar Karwar](/assets/img/avatar_default.png)
Currently due to following issues in the code even if device is configured in B only, G only or BG mode using iw bitrates command, ibss is getting created in BGN mode. 1) mwifiex_channels_to_cfg80211_channel_type() routine gives channel type as NL80211_CHAN_HT20 for non-HT channel as well, because driver doesn't store HT information provided by stack for the channel. This issue is fixed by maintaining channel type information in 'adapter->channel_type'. 2) Band configuration is unnecessarily overwritten with BGN/AN while setting channel. This patch makes sure that "adapter->config_bands" correctly gets modified while setting channel. Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
1414 lines
39 KiB
C
1414 lines
39 KiB
C
/*
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* Marvell Wireless LAN device driver: CFG80211
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*
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* Copyright (C) 2011, Marvell International Ltd.
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*
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* This software file (the "File") is distributed by Marvell International
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* Ltd. under the terms of the GNU General Public License Version 2, June 1991
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* (the "License"). You may use, redistribute and/or modify this File in
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* accordance with the terms and conditions of the License, a copy of which
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* is available by writing to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
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* worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
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*
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* THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
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* ARE EXPRESSLY DISCLAIMED. The License provides additional details about
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* this warranty disclaimer.
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*/
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#include "cfg80211.h"
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#include "main.h"
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/*
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* This function maps the nl802.11 channel type into driver channel type.
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*
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* The mapping is as follows -
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* NL80211_CHAN_NO_HT -> IEEE80211_HT_PARAM_CHA_SEC_NONE
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* NL80211_CHAN_HT20 -> IEEE80211_HT_PARAM_CHA_SEC_NONE
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* NL80211_CHAN_HT40PLUS -> IEEE80211_HT_PARAM_CHA_SEC_ABOVE
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* NL80211_CHAN_HT40MINUS -> IEEE80211_HT_PARAM_CHA_SEC_BELOW
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* Others -> IEEE80211_HT_PARAM_CHA_SEC_NONE
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*/
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static u8
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mwifiex_cfg80211_channel_type_to_sec_chan_offset(enum nl80211_channel_type
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channel_type)
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{
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switch (channel_type) {
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case NL80211_CHAN_NO_HT:
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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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}
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/*
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* This function checks whether WEP is set.
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*/
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static int
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mwifiex_is_alg_wep(u32 cipher)
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{
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switch (cipher) {
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case WLAN_CIPHER_SUITE_WEP40:
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case WLAN_CIPHER_SUITE_WEP104:
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return 1;
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default:
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break;
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}
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return 0;
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}
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/*
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* This function retrieves the private structure from kernel wiphy structure.
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*/
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static void *mwifiex_cfg80211_get_priv(struct wiphy *wiphy)
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{
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return (void *) (*(unsigned long *) wiphy_priv(wiphy));
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}
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/*
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* CFG802.11 operation handler to delete a network key.
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*/
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static int
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mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev,
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u8 key_index, bool pairwise, const u8 *mac_addr)
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{
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struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
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if (mwifiex_set_encode(priv, NULL, 0, key_index, 1)) {
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wiphy_err(wiphy, "deleting the crypto keys\n");
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return -EFAULT;
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}
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wiphy_dbg(wiphy, "info: crypto keys deleted\n");
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return 0;
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}
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/*
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* CFG802.11 operation handler to set Tx power.
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*/
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static int
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mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy,
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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_private *priv = mwifiex_cfg80211_get_priv(wiphy);
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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) {
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power_cfg.is_power_auto = 0;
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power_cfg.power_level = dbm;
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} else {
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power_cfg.is_power_auto = 1;
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}
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return mwifiex_set_tx_power(priv, &power_cfg);
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}
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/*
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* CFG802.11 operation handler to set Power Save option.
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*
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* The timeout value, if provided, is currently ignored.
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*/
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static int
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mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy,
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struct net_device *dev,
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bool enabled, int timeout)
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{
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struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
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u32 ps_mode;
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if (timeout)
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wiphy_dbg(wiphy,
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"info: ignoring the timeout value"
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" 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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}
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/*
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* CFG802.11 operation handler to set the default network key.
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*/
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static int
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mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
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u8 key_index, bool unicast,
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bool multicast)
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{
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struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
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/* Return if WEP key not configured */
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if (priv->sec_info.wep_status == MWIFIEX_802_11_WEP_DISABLED)
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return 0;
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if (mwifiex_set_encode(priv, NULL, 0, key_index, 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;
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}
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/*
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* CFG802.11 operation handler to add a network key.
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*/
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static int
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mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev,
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u8 key_index, bool pairwise, const u8 *mac_addr,
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struct key_params *params)
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{
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struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
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if (mwifiex_set_encode(priv, params->key, params->key_len,
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key_index, 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;
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}
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/*
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* This function sends domain information to the firmware.
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*
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* The following information are passed to the firmware -
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* - Country codes
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* - Sub bands (first channel, number of channels, maximum Tx power)
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*/
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static int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy)
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{
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u8 no_of_triplet = 0;
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struct ieee80211_country_ie_triplet *t;
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u8 no_of_parsed_chan = 0;
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u8 first_chan = 0, next_chan = 0, max_pwr = 0;
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u8 i, flag = 0;
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enum ieee80211_band band;
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struct ieee80211_supported_band *sband;
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struct ieee80211_channel *ch;
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struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
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struct mwifiex_adapter *adapter = priv->adapter;
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struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg;
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/* Set country code */
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domain_info->country_code[0] = priv->country_code[0];
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domain_info->country_code[1] = priv->country_code[1];
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domain_info->country_code[2] = ' ';
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band = mwifiex_band_to_radio_type(adapter->config_bands);
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if (!wiphy->bands[band]) {
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wiphy_err(wiphy, "11D: setting domain info in FW\n");
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return -1;
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}
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sband = wiphy->bands[band];
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for (i = 0; i < sband->n_channels ; i++) {
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ch = &sband->channels[i];
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if (ch->flags & IEEE80211_CHAN_DISABLED)
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continue;
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if (!flag) {
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flag = 1;
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first_chan = (u32) ch->hw_value;
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next_chan = first_chan;
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max_pwr = ch->max_power;
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no_of_parsed_chan = 1;
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continue;
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}
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if (ch->hw_value == next_chan + 1 &&
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ch->max_power == max_pwr) {
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next_chan++;
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no_of_parsed_chan++;
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} else {
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t = &domain_info->triplet[no_of_triplet];
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t->chans.first_channel = first_chan;
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t->chans.num_channels = no_of_parsed_chan;
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t->chans.max_power = max_pwr;
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no_of_triplet++;
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first_chan = (u32) ch->hw_value;
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next_chan = first_chan;
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max_pwr = ch->max_power;
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no_of_parsed_chan = 1;
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}
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}
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if (flag) {
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t = &domain_info->triplet[no_of_triplet];
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t->chans.first_channel = first_chan;
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t->chans.num_channels = no_of_parsed_chan;
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t->chans.max_power = max_pwr;
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no_of_triplet++;
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}
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domain_info->no_of_triplet = no_of_triplet;
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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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}
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return 0;
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}
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/*
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* CFG802.11 regulatory domain callback function.
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*
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* This function is called when the regulatory domain is changed due to the
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* following reasons -
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* - Set by driver
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* - Set by system core
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* - Set by user
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* - Set bt Country IE
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*/
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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_private *priv = mwifiex_cfg80211_get_priv(wiphy);
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wiphy_dbg(wiphy, "info: cfg80211 regulatory domain callback for domain"
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" %c%c\n", request->alpha2[0], request->alpha2[1]);
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memcpy(priv->country_code, request->alpha2, sizeof(request->alpha2));
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switch (request->initiator) {
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case NL80211_REGDOM_SET_BY_DRIVER:
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case NL80211_REGDOM_SET_BY_CORE:
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case NL80211_REGDOM_SET_BY_USER:
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break;
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/* Todo: apply driver specific changes in channel flags based
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on the request initiator if necessary. */
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case NL80211_REGDOM_SET_BY_COUNTRY_IE:
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break;
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}
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mwifiex_send_domain_info_cmd_fw(wiphy);
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return 0;
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}
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/*
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* This function sets the RF channel.
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*
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* This function creates multiple IOCTL requests, populates them accordingly
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* and issues them to set the band/channel and frequency.
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*/
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static int
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mwifiex_set_rf_channel(struct mwifiex_private *priv,
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struct ieee80211_channel *chan,
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enum nl80211_channel_type channel_type)
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{
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struct mwifiex_chan_freq_power cfp;
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u32 config_bands = 0;
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struct wiphy *wiphy = priv->wdev->wiphy;
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struct mwifiex_adapter *adapter = priv->adapter;
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if (chan) {
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/* Set appropriate bands */
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if (chan->band == IEEE80211_BAND_2GHZ) {
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if (channel_type == NL80211_CHAN_NO_HT)
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if (priv->adapter->config_bands == BAND_B ||
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priv->adapter->config_bands == BAND_G)
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config_bands =
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priv->adapter->config_bands;
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else
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config_bands = BAND_B | BAND_G;
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else
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config_bands = BAND_B | BAND_G | BAND_GN;
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} else {
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if (channel_type == NL80211_CHAN_NO_HT)
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config_bands = BAND_A;
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else
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config_bands = BAND_AN | BAND_A;
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}
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if (!((config_bands | adapter->fw_bands) &
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~adapter->fw_bands)) {
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adapter->config_bands = config_bands;
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if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
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adapter->adhoc_start_band = config_bands;
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if ((config_bands & BAND_GN) ||
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(config_bands & BAND_AN))
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adapter->adhoc_11n_enabled = true;
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else
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adapter->adhoc_11n_enabled = false;
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}
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}
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adapter->sec_chan_offset =
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mwifiex_cfg80211_channel_type_to_sec_chan_offset
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(channel_type);
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adapter->channel_type = channel_type;
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mwifiex_send_domain_info_cmd_fw(wiphy);
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}
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wiphy_dbg(wiphy, "info: setting band %d, channel offset %d and "
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"mode %d\n", config_bands, adapter->sec_chan_offset,
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priv->bss_mode);
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if (!chan)
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return 0;
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memset(&cfp, 0, sizeof(cfp));
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cfp.freq = chan->center_freq;
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cfp.channel = ieee80211_frequency_to_channel(chan->center_freq);
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if (mwifiex_bss_set_channel(priv, &cfp))
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return -EFAULT;
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return mwifiex_drv_change_adhoc_chan(priv, cfp.channel);
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}
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/*
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* CFG802.11 operation handler to set channel.
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*
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* This function can only be used when station is not connected.
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*/
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static int
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mwifiex_cfg80211_set_channel(struct wiphy *wiphy, struct net_device *dev,
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struct ieee80211_channel *chan,
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enum nl80211_channel_type channel_type)
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{
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struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
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if (priv->media_connected) {
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wiphy_err(wiphy, "This setting is valid only when station "
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"is not connected\n");
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return -EINVAL;
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}
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return mwifiex_set_rf_channel(priv, chan, channel_type);
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}
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/*
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* This function sets the fragmentation threshold.
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*
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* The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
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* and MWIFIEX_FRAG_MAX_VALUE.
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*/
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static int
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mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
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{
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int ret;
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if (frag_thr < MWIFIEX_FRAG_MIN_VALUE
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|| frag_thr > MWIFIEX_FRAG_MAX_VALUE)
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return -EINVAL;
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/* Send request to firmware */
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ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
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HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
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&frag_thr);
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return ret;
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}
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/*
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* This function sets the RTS threshold.
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* The rts value must lie between MWIFIEX_RTS_MIN_VALUE
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* and MWIFIEX_RTS_MAX_VALUE.
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*/
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static int
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mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
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{
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if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
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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,
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&rts_thr);
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}
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|
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/*
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* CFG802.11 operation handler to set wiphy parameters.
|
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*
|
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* This function can be used to set the RTS threshold and the
|
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* Fragmentation threshold of the driver.
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*/
|
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static int
|
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mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
|
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{
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struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
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int ret = 0;
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if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
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ret = mwifiex_set_rts(priv, wiphy->rts_threshold);
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if (ret)
|
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return ret;
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}
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|
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if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
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ret = mwifiex_set_frag(priv, wiphy->frag_threshold);
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|
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return ret;
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}
|
|
|
|
/*
|
|
* CFG802.11 operation handler to change interface type.
|
|
*/
|
|
static int
|
|
mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
|
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struct net_device *dev,
|
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enum nl80211_iftype type, u32 *flags,
|
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struct vif_params *params)
|
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{
|
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int ret;
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struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
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|
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if (priv->bss_mode == type) {
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wiphy_warn(wiphy, "already set to required type\n");
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return 0;
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}
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|
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priv->bss_mode = type;
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|
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switch (type) {
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case NL80211_IFTYPE_ADHOC:
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dev->ieee80211_ptr->iftype = NL80211_IFTYPE_ADHOC;
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wiphy_dbg(wiphy, "info: setting interface type to adhoc\n");
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break;
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case NL80211_IFTYPE_STATION:
|
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dev->ieee80211_ptr->iftype = NL80211_IFTYPE_STATION;
|
|
wiphy_dbg(wiphy, "info: setting interface type to managed\n");
|
|
break;
|
|
case NL80211_IFTYPE_UNSPECIFIED:
|
|
dev->ieee80211_ptr->iftype = NL80211_IFTYPE_STATION;
|
|
wiphy_dbg(wiphy, "info: setting interface type to auto\n");
|
|
return 0;
|
|
default:
|
|
wiphy_err(wiphy, "unknown interface type: %d\n", type);
|
|
return -EINVAL;
|
|
}
|
|
|
|
mwifiex_deauthenticate(priv, NULL);
|
|
|
|
priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
|
|
|
|
ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_SET_BSS_MODE,
|
|
HostCmd_ACT_GEN_SET, 0, NULL);
|
|
|
|
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)
|
|
{
|
|
struct mwifiex_ds_get_signal signal;
|
|
struct mwifiex_rate_cfg rate;
|
|
int ret = 0;
|
|
|
|
sinfo->filled = STATION_INFO_RX_BYTES | STATION_INFO_TX_BYTES |
|
|
STATION_INFO_RX_PACKETS |
|
|
STATION_INFO_TX_PACKETS
|
|
| STATION_INFO_SIGNAL | STATION_INFO_TX_BITRATE;
|
|
|
|
/* Get signal information from the firmware */
|
|
memset(&signal, 0, sizeof(struct mwifiex_ds_get_signal));
|
|
if (mwifiex_get_signal_info(priv, &signal)) {
|
|
dev_err(priv->adapter->dev, "getting signal information\n");
|
|
ret = -EFAULT;
|
|
}
|
|
|
|
if (mwifiex_drv_get_data_rate(priv, &rate)) {
|
|
dev_err(priv->adapter->dev, "getting data rate\n");
|
|
ret = -EFAULT;
|
|
}
|
|
|
|
/*
|
|
* Bit 0 in tx_htinfo indicates that current Tx rate is 11n rate. Valid
|
|
* MCS index values for us are 0 to 7.
|
|
*/
|
|
if ((priv->tx_htinfo & BIT(0)) && (priv->tx_rate < 8)) {
|
|
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;
|
|
}
|
|
|
|
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;
|
|
sinfo->signal = priv->qual_level;
|
|
/* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
|
|
sinfo->txrate.legacy = rate.rate * 5;
|
|
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* 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;
|
|
|
|
return mwifiex_dump_station_info(priv, sinfo);
|
|
}
|
|
|
|
/* 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 = 220, .hw_value = 44, },
|
|
{.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, },
|
|
{.bitrate = 720, .hw_value = 144, },
|
|
};
|
|
|
|
/* 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,
|
|
.n_bitrates = 14,
|
|
};
|
|
|
|
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),
|
|
.bitrates = mwifiex_rates - 4,
|
|
.n_bitrates = ARRAY_SIZE(mwifiex_rates) + 4,
|
|
};
|
|
|
|
|
|
/* 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,
|
|
};
|
|
|
|
/*
|
|
* CFG802.11 operation handler for setting bit rates.
|
|
*
|
|
* Function selects legacy bang B/G/BG from corresponding bitrates selection.
|
|
* Currently only 2.4GHz band is supported.
|
|
*/
|
|
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);
|
|
int index = 0, mode = 0, i;
|
|
struct mwifiex_adapter *adapter = priv->adapter;
|
|
|
|
/* Currently only 2.4GHz is supported */
|
|
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 (mask->control[IEEE80211_BAND_2GHZ].legacy < index) {
|
|
mode = BAND_B;
|
|
} else {
|
|
mode = BAND_G;
|
|
if (mask->control[IEEE80211_BAND_2GHZ].legacy % index)
|
|
mode |= BAND_B;
|
|
}
|
|
|
|
if (!((mode | adapter->fw_bands) & ~adapter->fw_bands)) {
|
|
adapter->config_bands = mode;
|
|
if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
|
|
adapter->adhoc_start_band = mode;
|
|
adapter->adhoc_11n_enabled = false;
|
|
}
|
|
}
|
|
adapter->sec_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_NONE;
|
|
adapter->channel_type = NL80211_CHAN_NO_HT;
|
|
|
|
wiphy_debug(wiphy, "info: device configured in 802.11%s%s mode\n",
|
|
(mode & BAND_B) ? "b" : "",
|
|
(mode & BAND_G) ? "g" : "");
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* 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);
|
|
|
|
if (mwifiex_deauthenticate(priv, NULL))
|
|
return -EFAULT;
|
|
|
|
wiphy_dbg(wiphy, "info: successfully disconnected from %pM:"
|
|
" reason code %d\n", priv->cfg_bssid, reason_code);
|
|
|
|
memset(priv->cfg_bssid, 0, ETH_ALEN);
|
|
|
|
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;
|
|
struct cfg80211_bss *bss;
|
|
int ie_len;
|
|
u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
|
|
enum ieee80211_band band;
|
|
|
|
if (mwifiex_get_bss_info(priv, &bss_info))
|
|
return -1;
|
|
|
|
ie_buf[0] = WLAN_EID_SSID;
|
|
ie_buf[1] = bss_info.ssid.ssid_len;
|
|
|
|
memcpy(&ie_buf[sizeof(struct ieee_types_header)],
|
|
&bss_info.ssid.ssid,
|
|
bss_info.ssid.ssid_len);
|
|
ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
|
|
|
|
band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
|
|
chan = __ieee80211_get_channel(priv->wdev->wiphy,
|
|
ieee80211_channel_to_frequency(bss_info.bss_chan,
|
|
band));
|
|
|
|
bss = cfg80211_inform_bss(priv->wdev->wiphy, chan,
|
|
bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
|
|
0, ie_buf, ie_len, 0, GFP_KERNEL);
|
|
cfg80211_put_bss(bss);
|
|
memcpy(priv->cfg_bssid, bss_info.bssid, ETH_ALEN);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* 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,
|
|
* the function notifies the CFG802.11 subsystem of the new BSS connection.
|
|
*/
|
|
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)
|
|
{
|
|
struct mwifiex_802_11_ssid req_ssid;
|
|
int ret, auth_type = 0;
|
|
struct cfg80211_bss *bss = NULL;
|
|
u8 is_scanning_required = 0;
|
|
|
|
memset(&req_ssid, 0, sizeof(struct mwifiex_802_11_ssid));
|
|
|
|
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 */
|
|
mwifiex_deauthenticate(priv, NULL);
|
|
|
|
if (channel)
|
|
ret = mwifiex_set_rf_channel(priv, channel,
|
|
priv->adapter->channel_type);
|
|
|
|
ret = mwifiex_set_encode(priv, NULL, 0, 0, 1); /* Disable keys */
|
|
|
|
if (mode == NL80211_IFTYPE_ADHOC) {
|
|
/* "privacy" is set only for ad-hoc mode */
|
|
if (privacy) {
|
|
/*
|
|
* Keep WLAN_CIPHER_SUITE_WEP104 for now so that
|
|
* 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.
|
|
*/
|
|
priv->sec_info.encryption_mode =
|
|
WLAN_CIPHER_SUITE_WEP104;
|
|
priv->sec_info.authentication_mode =
|
|
NL80211_AUTHTYPE_OPEN_SYSTEM;
|
|
}
|
|
|
|
goto done;
|
|
}
|
|
|
|
/* Now handle infra mode. "sme" is valid for infra mode only */
|
|
if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC
|
|
|| sme->auth_type == NL80211_AUTHTYPE_OPEN_SYSTEM)
|
|
auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
|
|
else if (sme->auth_type == NL80211_AUTHTYPE_SHARED_KEY)
|
|
auth_type = NL80211_AUTHTYPE_SHARED_KEY;
|
|
|
|
if (sme->crypto.n_ciphers_pairwise) {
|
|
priv->sec_info.encryption_mode =
|
|
sme->crypto.ciphers_pairwise[0];
|
|
priv->sec_info.authentication_mode = auth_type;
|
|
}
|
|
|
|
if (sme->crypto.cipher_group) {
|
|
priv->sec_info.encryption_mode = sme->crypto.cipher_group;
|
|
priv->sec_info.authentication_mode = auth_type;
|
|
}
|
|
if (sme->ie)
|
|
ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
|
|
|
|
if (sme->key) {
|
|
if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
|
|
dev_dbg(priv->adapter->dev,
|
|
"info: setting wep encryption"
|
|
" with key len %d\n", sme->key_len);
|
|
ret = mwifiex_set_encode(priv, sme->key, sme->key_len,
|
|
sme->key_idx, 0);
|
|
}
|
|
}
|
|
done:
|
|
/* Do specific SSID scanning */
|
|
if (mwifiex_request_scan(priv, &req_ssid)) {
|
|
dev_err(priv->adapter->dev, "scan error\n");
|
|
return -EFAULT;
|
|
}
|
|
|
|
/*
|
|
* 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;
|
|
}
|
|
}
|
|
|
|
/* 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) {
|
|
dev_warn(priv->adapter->dev, "assoc: requested "
|
|
"bss not found in scan results\n");
|
|
break;
|
|
}
|
|
is_scanning_required = 1;
|
|
} else {
|
|
dev_dbg(priv->adapter->dev, "info: trying to associate to %s and bssid %pM\n",
|
|
(char *) req_ssid.ssid, bss->bssid);
|
|
memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (mwifiex_bss_start(priv, bss, &req_ssid))
|
|
return -EFAULT;
|
|
|
|
if (mode == NL80211_IFTYPE_ADHOC) {
|
|
/* 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;
|
|
|
|
if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
|
|
wiphy_err(wiphy, "received infra assoc request "
|
|
"when station is in ibss mode\n");
|
|
goto done;
|
|
}
|
|
|
|
wiphy_dbg(wiphy, "info: Trying to associate to %s and bssid %pM\n",
|
|
(char *) sme->ssid, sme->bssid);
|
|
|
|
ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
|
|
priv->bss_mode, sme->channel, sme, 0);
|
|
done:
|
|
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);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* 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)
|
|
{
|
|
struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
|
|
int ret = 0;
|
|
|
|
if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
|
|
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",
|
|
(char *) params->ssid, params->bssid);
|
|
|
|
ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
|
|
params->bssid, priv->bss_mode,
|
|
params->channel, NULL, params->privacy);
|
|
done:
|
|
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");
|
|
}
|
|
|
|
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)
|
|
{
|
|
struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
|
|
|
|
wiphy_dbg(wiphy, "info: disconnecting from essid %pM\n",
|
|
priv->cfg_bssid);
|
|
if (mwifiex_deauthenticate(priv, NULL))
|
|
return -EFAULT;
|
|
|
|
memset(priv->cfg_bssid, 0, ETH_ALEN);
|
|
|
|
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
|
|
mwifiex_cfg80211_scan(struct wiphy *wiphy, struct net_device *dev,
|
|
struct cfg80211_scan_request *request)
|
|
{
|
|
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
|
|
int i;
|
|
struct ieee80211_channel *chan;
|
|
|
|
wiphy_dbg(wiphy, "info: received scan request on %s\n", dev->name);
|
|
|
|
priv->scan_request = request;
|
|
|
|
priv->user_scan_cfg = kzalloc(sizeof(struct mwifiex_user_scan_cfg),
|
|
GFP_KERNEL);
|
|
if (!priv->user_scan_cfg) {
|
|
dev_err(priv->adapter->dev, "failed to alloc scan_req\n");
|
|
return -ENOMEM;
|
|
}
|
|
for (i = 0; i < request->n_ssids; i++) {
|
|
memcpy(priv->user_scan_cfg->ssid_list[i].ssid,
|
|
request->ssids[i].ssid, request->ssids[i].ssid_len);
|
|
priv->user_scan_cfg->ssid_list[i].max_len =
|
|
request->ssids[i].ssid_len;
|
|
}
|
|
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 =
|
|
MWIFIEX_SCAN_TYPE_PASSIVE;
|
|
else
|
|
priv->user_scan_cfg->chan_list[i].scan_type =
|
|
MWIFIEX_SCAN_TYPE_ACTIVE;
|
|
|
|
priv->user_scan_cfg->chan_list[i].scan_time = 0;
|
|
}
|
|
if (mwifiex_set_user_scan_ioctl(priv, priv->user_scan_cfg))
|
|
return -EFAULT;
|
|
|
|
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
|
|
* - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
|
|
* - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
|
|
* - HT Capabilities supported by firmware
|
|
* - 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;
|
|
ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
|
|
ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
|
|
|
|
memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
|
|
|
|
/* 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);
|
|
/* Set MCS for 1x1 */
|
|
memset(mcs, 0xff, rx_mcs_supp);
|
|
/* Clear all the other values */
|
|
memset(&mcs[rx_mcs_supp], 0,
|
|
sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
|
|
if (priv->bss_mode == NL80211_IFTYPE_STATION ||
|
|
ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
|
|
/* 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;
|
|
}
|
|
|
|
/*
|
|
* create a new virtual interface with the given name
|
|
*/
|
|
struct net_device *mwifiex_add_virtual_intf(struct wiphy *wiphy,
|
|
char *name,
|
|
enum nl80211_iftype type,
|
|
u32 *flags,
|
|
struct vif_params *params)
|
|
{
|
|
struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
|
|
struct mwifiex_adapter *adapter;
|
|
struct net_device *dev;
|
|
void *mdev_priv;
|
|
|
|
if (!priv)
|
|
return NULL;
|
|
|
|
adapter = priv->adapter;
|
|
if (!adapter)
|
|
return NULL;
|
|
|
|
switch (type) {
|
|
case NL80211_IFTYPE_UNSPECIFIED:
|
|
case NL80211_IFTYPE_STATION:
|
|
case NL80211_IFTYPE_ADHOC:
|
|
if (priv->bss_mode) {
|
|
wiphy_err(wiphy, "cannot create multiple"
|
|
" station/adhoc interfaces\n");
|
|
return NULL;
|
|
}
|
|
|
|
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;
|
|
priv->bss_priority = 0;
|
|
priv->bss_role = MWIFIEX_BSS_ROLE_STA;
|
|
priv->bss_index = 0;
|
|
priv->bss_num = 0;
|
|
|
|
break;
|
|
default:
|
|
wiphy_err(wiphy, "type not supported\n");
|
|
return NULL;
|
|
}
|
|
|
|
dev = alloc_netdev_mq(sizeof(struct mwifiex_private *), name,
|
|
ether_setup, 1);
|
|
if (!dev) {
|
|
wiphy_err(wiphy, "no memory available for netdevice\n");
|
|
goto error;
|
|
}
|
|
|
|
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;
|
|
|
|
priv->netdev = dev;
|
|
mwifiex_init_priv_params(priv, dev);
|
|
|
|
SET_NETDEV_DEV(dev, adapter->dev);
|
|
|
|
/* Register network device */
|
|
if (register_netdevice(dev)) {
|
|
wiphy_err(wiphy, "cannot register virtual network device\n");
|
|
goto error;
|
|
}
|
|
|
|
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
|
|
return dev;
|
|
error:
|
|
if (dev && (dev->reg_state == NETREG_UNREGISTERED))
|
|
free_netdev(dev);
|
|
priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
|
|
|
|
return NULL;
|
|
}
|
|
EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);
|
|
|
|
/*
|
|
* del_virtual_intf: remove the virtual interface determined by dev
|
|
*/
|
|
int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct net_device *dev)
|
|
{
|
|
struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
|
|
|
|
if (!priv || !dev)
|
|
return 0;
|
|
|
|
#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);
|
|
|
|
if (dev->reg_state == NETREG_REGISTERED)
|
|
unregister_netdevice(dev);
|
|
|
|
if (dev->reg_state == NETREG_UNREGISTERED)
|
|
free_netdev(dev);
|
|
|
|
/* 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);
|
|
|
|
/* station cfg80211 operations */
|
|
static struct cfg80211_ops mwifiex_cfg80211_ops = {
|
|
.add_virtual_intf = mwifiex_add_virtual_intf,
|
|
.del_virtual_intf = mwifiex_del_virtual_intf,
|
|
.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,
|
|
.set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
|
|
.set_channel = mwifiex_cfg80211_set_channel,
|
|
.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,
|
|
.set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
|
|
};
|
|
|
|
/*
|
|
* 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.
|
|
*/
|
|
int mwifiex_register_cfg80211(struct mwifiex_private *priv)
|
|
{
|
|
int ret;
|
|
void *wdev_priv;
|
|
struct wireless_dev *wdev;
|
|
|
|
wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
|
|
if (!wdev) {
|
|
dev_err(priv->adapter->dev, "%s: allocating wireless device\n",
|
|
__func__);
|
|
return -ENOMEM;
|
|
}
|
|
wdev->wiphy =
|
|
wiphy_new(&mwifiex_cfg80211_ops,
|
|
sizeof(struct mwifiex_private *));
|
|
if (!wdev->wiphy) {
|
|
kfree(wdev);
|
|
return -ENOMEM;
|
|
}
|
|
wdev->iftype = NL80211_IFTYPE_STATION;
|
|
wdev->wiphy->max_scan_ssids = 10;
|
|
wdev->wiphy->interface_modes =
|
|
BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_ADHOC);
|
|
|
|
wdev->wiphy->bands[IEEE80211_BAND_2GHZ] = &mwifiex_band_2ghz;
|
|
mwifiex_setup_ht_caps(
|
|
&wdev->wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap, priv);
|
|
|
|
if (priv->adapter->config_bands & BAND_A) {
|
|
wdev->wiphy->bands[IEEE80211_BAND_5GHZ] = &mwifiex_band_5ghz;
|
|
mwifiex_setup_ht_caps(
|
|
&wdev->wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap, priv);
|
|
} else {
|
|
wdev->wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
|
|
}
|
|
|
|
/* Initialize cipher suits */
|
|
wdev->wiphy->cipher_suites = mwifiex_cipher_suites;
|
|
wdev->wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
|
|
|
|
memcpy(wdev->wiphy->perm_addr, priv->curr_addr, ETH_ALEN);
|
|
wdev->wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
|
|
|
|
/* Reserve space for bss band information */
|
|
wdev->wiphy->bss_priv_size = sizeof(u8);
|
|
|
|
wdev->wiphy->reg_notifier = mwifiex_reg_notifier;
|
|
|
|
/* Set struct mwifiex_private pointer in wiphy_priv */
|
|
wdev_priv = wiphy_priv(wdev->wiphy);
|
|
|
|
*(unsigned long *) wdev_priv = (unsigned long) priv;
|
|
|
|
set_wiphy_dev(wdev->wiphy, (struct device *) priv->adapter->dev);
|
|
|
|
ret = wiphy_register(wdev->wiphy);
|
|
if (ret < 0) {
|
|
dev_err(priv->adapter->dev, "%s: registering cfg80211 device\n",
|
|
__func__);
|
|
wiphy_free(wdev->wiphy);
|
|
kfree(wdev);
|
|
return ret;
|
|
} else {
|
|
dev_dbg(priv->adapter->dev,
|
|
"info: successfully registered wiphy device\n");
|
|
}
|
|
|
|
priv->wdev = wdev;
|
|
|
|
return ret;
|
|
}
|