| /* |
| * 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" |
| |
| /* |
| * This function maps the nl802.11 channel type into driver channel type. |
| * |
| * The mapping is as follows - |
| * NL80211_CHAN_NO_HT -> NO_SEC_CHANNEL |
| * NL80211_CHAN_HT20 -> NO_SEC_CHANNEL |
| * NL80211_CHAN_HT40PLUS -> SEC_CHANNEL_ABOVE |
| * NL80211_CHAN_HT40MINUS -> SEC_CHANNEL_BELOW |
| * Others -> NO_SEC_CHANNEL |
| */ |
| static int |
| mwifiex_cfg80211_channel_type_to_mwifiex_channels(enum nl80211_channel_type |
| channel_type) |
| { |
| switch (channel_type) { |
| case NL80211_CHAN_NO_HT: |
| case NL80211_CHAN_HT20: |
| return NO_SEC_CHANNEL; |
| case NL80211_CHAN_HT40PLUS: |
| return SEC_CHANNEL_ABOVE; |
| case NL80211_CHAN_HT40MINUS: |
| return SEC_CHANNEL_BELOW; |
| default: |
| return NO_SEC_CHANNEL; |
| } |
| } |
| |
| /* |
| * This function maps the driver channel type into nl802.11 channel type. |
| * |
| * The mapping is as follows - |
| * NO_SEC_CHANNEL -> NL80211_CHAN_HT20 |
| * SEC_CHANNEL_ABOVE -> NL80211_CHAN_HT40PLUS |
| * SEC_CHANNEL_BELOW -> NL80211_CHAN_HT40MINUS |
| * Others -> NL80211_CHAN_HT20 |
| */ |
| static enum nl80211_channel_type |
| mwifiex_channels_to_cfg80211_channel_type(int channel_type) |
| { |
| switch (channel_type) { |
| case NO_SEC_CHANNEL: |
| return NL80211_CHAN_HT20; |
| case SEC_CHANNEL_ABOVE: |
| return NL80211_CHAN_HT40PLUS; |
| case SEC_CHANNEL_BELOW: |
| return NL80211_CHAN_HT40MINUS; |
| default: |
| return NL80211_CHAN_HT20; |
| } |
| } |
| |
| /* |
| * This function checks whether WEP is set. |
| */ |
| static int |
| mwifiex_is_alg_wep(u32 cipher) |
| { |
| switch (cipher) { |
| case WLAN_CIPHER_SUITE_WEP40: |
| case WLAN_CIPHER_SUITE_WEP104: |
| return 1; |
| default: |
| break; |
| } |
| |
| return 0; |
| } |
| |
| /* |
| * This function retrieves the private structure from kernel wiphy structure. |
| */ |
| static void *mwifiex_cfg80211_get_priv(struct wiphy *wiphy) |
| { |
| 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) |
| { |
| struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy); |
| |
| if (mwifiex_set_encode(priv, NULL, 0, key_index, 1)) { |
| 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, |
| int dbm) |
| { |
| struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy); |
| struct mwifiex_power_cfg power_cfg; |
| |
| if (type == NL80211_TX_POWER_FIXED) { |
| power_cfg.is_power_auto = 0; |
| power_cfg.power_level = dbm; |
| } else { |
| power_cfg.is_power_auto = 1; |
| } |
| |
| return mwifiex_set_tx_power(priv, &power_cfg); |
| } |
| |
| /* |
| * 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) |
| { |
| struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy); |
| u32 ps_mode; |
| |
| if (timeout) |
| wiphy_dbg(wiphy, |
| "info: ignoring the timeout value" |
| " for IEEE power save\n"); |
| |
| ps_mode = enabled; |
| |
| return mwifiex_drv_set_power(priv, &ps_mode); |
| } |
| |
| /* |
| * 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) |
| { |
| struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy); |
| |
| /* Return if WEP key not configured */ |
| if (priv->sec_info.wep_status == MWIFIEX_802_11_WEP_DISABLED) |
| return 0; |
| |
| if (mwifiex_set_encode(priv, NULL, 0, key_index, 0)) { |
| wiphy_err(wiphy, "set default Tx key index\n"); |
| return -EFAULT; |
| } |
| |
| 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) |
| { |
| struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy); |
| |
| if (mwifiex_set_encode(priv, params->key, params->key_len, |
| key_index, 0)) { |
| wiphy_err(wiphy, "crypto keys added\n"); |
| return -EFAULT; |
| } |
| |
| 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; |
| struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy); |
| struct mwifiex_adapter *adapter = priv->adapter; |
| struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg; |
| |
| /* Set country code */ |
| domain_info->country_code[0] = priv->country_code[0]; |
| domain_info->country_code[1] = priv->country_code[1]; |
| 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; |
| max_pwr = ch->max_power; |
| no_of_parsed_chan = 1; |
| continue; |
| } |
| |
| if (ch->hw_value == next_chan + 1 && |
| ch->max_power == max_pwr) { |
| 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; |
| max_pwr = ch->max_power; |
| 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; |
| |
| if (mwifiex_send_cmd_async(priv, HostCmd_CMD_802_11D_DOMAIN_INFO, |
| HostCmd_ACT_GEN_SET, 0, NULL)) { |
| wiphy_err(wiphy, "11D: setting domain info in FW\n"); |
| return -1; |
| } |
| |
| return 0; |
| } |
| |
| /* |
| * 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, |
| struct regulatory_request *request) |
| { |
| struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy); |
| |
| wiphy_dbg(wiphy, "info: cfg80211 regulatory domain callback for domain" |
| " %c%c\n", request->alpha2[0], request->alpha2[1]); |
| |
| memcpy(priv->country_code, request->alpha2, sizeof(request->alpha2)); |
| |
| 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 RF channel. |
| * |
| * This function creates multiple IOCTL requests, populates them accordingly |
| * and issues them to set the band/channel and frequency. |
| */ |
| static int |
| mwifiex_set_rf_channel(struct mwifiex_private *priv, |
| struct ieee80211_channel *chan, |
| enum nl80211_channel_type channel_type) |
| { |
| struct mwifiex_chan_freq_power cfp; |
| struct mwifiex_ds_band_cfg band_cfg; |
| u32 config_bands = 0; |
| struct wiphy *wiphy = priv->wdev->wiphy; |
| |
| if (chan) { |
| memset(&band_cfg, 0, sizeof(band_cfg)); |
| /* Set appropriate bands */ |
| if (chan->band == IEEE80211_BAND_2GHZ) |
| config_bands = BAND_B | BAND_G | BAND_GN; |
| else |
| config_bands = BAND_AN | BAND_A; |
| if (priv->bss_mode == NL80211_IFTYPE_STATION |
| || priv->bss_mode == NL80211_IFTYPE_UNSPECIFIED) { |
| band_cfg.config_bands = config_bands; |
| } else if (priv->bss_mode == NL80211_IFTYPE_ADHOC) { |
| band_cfg.config_bands = config_bands; |
| band_cfg.adhoc_start_band = config_bands; |
| } |
| |
| band_cfg.sec_chan_offset = |
| mwifiex_cfg80211_channel_type_to_mwifiex_channels |
| (channel_type); |
| |
| if (mwifiex_set_radio_band_cfg(priv, &band_cfg)) |
| return -EFAULT; |
| |
| mwifiex_send_domain_info_cmd_fw(wiphy); |
| } |
| |
| wiphy_dbg(wiphy, "info: setting band %d, channel offset %d and " |
| "mode %d\n", config_bands, band_cfg.sec_chan_offset, |
| priv->bss_mode); |
| if (!chan) |
| return 0; |
| |
| memset(&cfp, 0, sizeof(cfp)); |
| cfp.freq = chan->center_freq; |
| cfp.channel = ieee80211_frequency_to_channel(chan->center_freq); |
| |
| if (mwifiex_bss_set_channel(priv, &cfp)) |
| return -EFAULT; |
| |
| return mwifiex_drv_change_adhoc_chan(priv, cfp.channel); |
| } |
| |
| /* |
| * CFG802.11 operation handler to set channel. |
| * |
| * This function can only be used when station is not connected. |
| */ |
| static int |
| mwifiex_cfg80211_set_channel(struct wiphy *wiphy, struct net_device *dev, |
| struct ieee80211_channel *chan, |
| enum nl80211_channel_type channel_type) |
| { |
| struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy); |
| |
| if (priv->media_connected) { |
| wiphy_err(wiphy, "This setting is valid only when station " |
| "is not connected\n"); |
| return -EINVAL; |
| } |
| |
| return mwifiex_set_rf_channel(priv, chan, channel_type); |
| } |
| |
| /* |
| * This function sets the fragmentation threshold. |
| * |
| * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE |
| * and MWIFIEX_FRAG_MAX_VALUE. |
| */ |
| static int |
| mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr) |
| { |
| int ret; |
| |
| if (frag_thr < MWIFIEX_FRAG_MIN_VALUE |
| || frag_thr > MWIFIEX_FRAG_MAX_VALUE) |
| return -EINVAL; |
| |
| /* Send request to firmware */ |
| ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB, |
| HostCmd_ACT_GEN_SET, FRAG_THRESH_I, |
| &frag_thr); |
| |
| return ret; |
| } |
| |
| /* |
| * This function sets the RTS threshold. |
| |
| * The rts value must lie between MWIFIEX_RTS_MIN_VALUE |
| * and MWIFIEX_RTS_MAX_VALUE. |
| */ |
| 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; |
| |
| return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB, |
| HostCmd_ACT_GEN_SET, RTS_THRESH_I, |
| &rts_thr); |
| } |
| |
| /* |
| * 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) |
| { |
| struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy); |
| int ret = 0; |
| |
| 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); |
| |
| return ret; |
| } |
| |
| /* |
| * 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) |
| { |
| int ret; |
| struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); |
| |
| if (priv->bss_mode == type) { |
| wiphy_warn(wiphy, "already set to required type\n"); |
| return 0; |
| } |
| |
| priv->bss_mode = type; |
| |
| switch (type) { |
| case NL80211_IFTYPE_ADHOC: |
| dev->ieee80211_ptr->iftype = NL80211_IFTYPE_ADHOC; |
| wiphy_dbg(wiphy, "info: setting interface type to adhoc\n"); |
| break; |
| case NL80211_IFTYPE_STATION: |
| 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; |
| } |
| |
| 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->w_stats.qual.level; |
| sinfo->txrate.legacy = rate.rate; |
| |
| 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); |
| |
| mwifiex_dump_station_info(priv, sinfo); |
| |
| 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 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 (priv->disconnect) |
| return -EBUSY; |
| |
| priv->disconnect = 1; |
| if (mwifiex_deauthenticate(priv, NULL)) |
| return -EFAULT; |
| |
| wiphy_dbg(wiphy, "info: successfully disconnected from %pM:" |
| " reason code %d\n", priv->cfg_bssid, reason_code); |
| |
| queue_work(priv->workqueue, &priv->cfg_workqueue); |
| |
| 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; |
| int ie_len; |
| u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)]; |
| |
| 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); |
| |
| chan = __ieee80211_get_channel(priv->wdev->wiphy, |
| ieee80211_channel_to_frequency(bss_info.bss_chan, |
| priv->curr_bss_params.band)); |
| |
| cfg80211_inform_bss(priv->wdev->wiphy, chan, |
| bss_info.bssid, 0, WLAN_CAPABILITY_IBSS, |
| 0, ie_buf, ie_len, 0, GFP_KERNEL); |
| memcpy(priv->cfg_bssid, bss_info.bssid, ETH_ALEN); |
| |
| return 0; |
| } |
| |
| /* |
| * This function informs the CFG802.11 subsystem of a new BSS connection. |
| * |
| * The following information are sent to the CFG802.11 subsystem |
| * to register the new BSS connection. If we do not register the new BSS, |
| * a kernel panic will result. |
| * - MAC address |
| * - Capabilities |
| * - Beacon period |
| * - RSSI value |
| * - Channel |
| * - Supported rates IE |
| * - Extended capabilities IE |
| * - DS parameter set IE |
| * - HT Capability IE |
| * - Vendor Specific IE (221) |
| * - WPA IE |
| * - RSN IE |
| */ |
| static int mwifiex_inform_bss_from_scan_result(struct mwifiex_private *priv, |
| struct mwifiex_802_11_ssid *ssid) |
| { |
| struct mwifiex_scan_resp scan_resp; |
| struct mwifiex_bssdescriptor *scan_table; |
| int i, j; |
| struct ieee80211_channel *chan; |
| u8 *ie, *ie_buf; |
| u32 ie_len; |
| u8 *beacon; |
| int beacon_size; |
| u8 element_id, element_len; |
| |
| memset(&scan_resp, 0, sizeof(scan_resp)); |
| scan_resp.scan_table = (u8 *) priv->adapter->scan_table; |
| scan_resp.num_in_scan_table = priv->adapter->num_in_scan_table; |
| |
| #define MAX_IE_BUF 2048 |
| ie_buf = kzalloc(MAX_IE_BUF, GFP_KERNEL); |
| if (!ie_buf) { |
| dev_err(priv->adapter->dev, "%s: failed to alloc ie_buf\n", |
| __func__); |
| return -ENOMEM; |
| } |
| |
| scan_table = (struct mwifiex_bssdescriptor *) scan_resp.scan_table; |
| for (i = 0; i < scan_resp.num_in_scan_table; i++) { |
| if (ssid) { |
| /* Inform specific BSS only */ |
| if (memcmp(ssid->ssid, scan_table[i].ssid.ssid, |
| ssid->ssid_len)) |
| continue; |
| } |
| memset(ie_buf, 0, MAX_IE_BUF); |
| ie_buf[0] = WLAN_EID_SSID; |
| ie_buf[1] = scan_table[i].ssid.ssid_len; |
| memcpy(&ie_buf[sizeof(struct ieee_types_header)], |
| scan_table[i].ssid.ssid, ie_buf[1]); |
| |
| ie = ie_buf + ie_buf[1] + sizeof(struct ieee_types_header); |
| ie_len = ie_buf[1] + sizeof(struct ieee_types_header); |
| |
| ie[0] = WLAN_EID_SUPP_RATES; |
| |
| for (j = 0; j < sizeof(scan_table[i].supported_rates); j++) { |
| if (!scan_table[i].supported_rates[j]) |
| break; |
| else |
| ie[j + sizeof(struct ieee_types_header)] = |
| scan_table[i].supported_rates[j]; |
| } |
| |
| ie[1] = j; |
| ie_len += ie[1] + sizeof(struct ieee_types_header); |
| |
| beacon = scan_table[i].beacon_buf; |
| beacon_size = scan_table[i].beacon_buf_size; |
| |
| /* Skip time stamp, beacon interval and capability */ |
| |
| if (beacon) { |
| beacon += sizeof(scan_table[i].beacon_period) |
| + sizeof(scan_table[i].time_stamp) + |
| +sizeof(scan_table[i].cap_info_bitmap); |
| |
| beacon_size -= sizeof(scan_table[i].beacon_period) |
| + sizeof(scan_table[i].time_stamp) |
| + sizeof(scan_table[i].cap_info_bitmap); |
| } |
| |
| while (beacon_size >= sizeof(struct ieee_types_header)) { |
| ie = ie_buf + ie_len; |
| element_id = *beacon; |
| element_len = *(beacon + 1); |
| if (beacon_size < (int) element_len + |
| sizeof(struct ieee_types_header)) { |
| dev_err(priv->adapter->dev, "%s: in processing" |
| " IE, bytes left < IE length\n", |
| __func__); |
| break; |
| } |
| switch (element_id) { |
| case WLAN_EID_EXT_CAPABILITY: |
| case WLAN_EID_DS_PARAMS: |
| case WLAN_EID_HT_CAPABILITY: |
| case WLAN_EID_VENDOR_SPECIFIC: |
| case WLAN_EID_RSN: |
| case WLAN_EID_BSS_AC_ACCESS_DELAY: |
| ie[0] = element_id; |
| ie[1] = element_len; |
| memcpy(&ie[sizeof(struct ieee_types_header)], |
| (u8 *) beacon |
| + sizeof(struct ieee_types_header), |
| element_len); |
| ie_len += ie[1] + |
| sizeof(struct ieee_types_header); |
| break; |
| default: |
| break; |
| } |
| beacon += element_len + |
| sizeof(struct ieee_types_header); |
| beacon_size -= element_len + |
| sizeof(struct ieee_types_header); |
| } |
| chan = ieee80211_get_channel(priv->wdev->wiphy, |
| scan_table[i].freq); |
| cfg80211_inform_bss(priv->wdev->wiphy, chan, |
| scan_table[i].mac_address, |
| 0, scan_table[i].cap_info_bitmap, |
| scan_table[i].beacon_period, |
| ie_buf, ie_len, |
| scan_table[i].rssi, GFP_KERNEL); |
| } |
| |
| kfree(ie_buf); |
| 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, |
| * otherwise the kernel will panic. |
| */ |
| 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; |
| struct mwifiex_ssid_bssid ssid_bssid; |
| int ret, auth_type = 0; |
| |
| memset(&req_ssid, 0, sizeof(struct mwifiex_802_11_ssid)); |
| memset(&ssid_bssid, 0, sizeof(struct mwifiex_ssid_bssid)); |
| |
| 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, |
| mwifiex_channels_to_cfg80211_channel_type |
| (priv->adapter->chan_offset)); |
| |
| 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(0) | mwifiex_is_alg_wep(0)) { |
| 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; |
| } |
| |
| |
| memcpy(&ssid_bssid.ssid, &req_ssid, sizeof(struct mwifiex_802_11_ssid)); |
| |
| if (mode != NL80211_IFTYPE_ADHOC) { |
| if (mwifiex_find_best_bss(priv, &ssid_bssid)) |
| return -EFAULT; |
| /* Inform the BSS information to kernel, otherwise |
| * kernel will give a panic after successful assoc */ |
| if (mwifiex_inform_bss_from_scan_result(priv, &req_ssid)) |
| return -EFAULT; |
| } |
| |
| dev_dbg(priv->adapter->dev, "info: trying to associate to %s and bssid %pM\n", |
| (char *) req_ssid.ssid, ssid_bssid.bssid); |
| |
| memcpy(&priv->cfg_bssid, ssid_bssid.bssid, 6); |
| |
| /* Connect to BSS by ESSID */ |
| memset(&ssid_bssid.bssid, 0, ETH_ALEN); |
| |
| if (!netif_queue_stopped(priv->netdev)) |
| netif_stop_queue(priv->netdev); |
| |
| if (mwifiex_bss_start(priv, &ssid_bssid)) |
| 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->assoc_request) |
| return -EBUSY; |
| |
| if (priv->bss_mode == NL80211_IFTYPE_ADHOC) { |
| wiphy_err(wiphy, "received infra assoc request " |
| "when station is in ibss mode\n"); |
| goto done; |
| } |
| |
| priv->assoc_request = -EINPROGRESS; |
| |
| 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); |
| |
| priv->assoc_request = 1; |
| done: |
| priv->assoc_result = ret; |
| queue_work(priv->workqueue, &priv->cfg_workqueue); |
| 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->ibss_join_request) |
| return -EBUSY; |
| |
| 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; |
| } |
| |
| priv->ibss_join_request = -EINPROGRESS; |
| |
| 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); |
| |
| priv->ibss_join_request = 1; |
| done: |
| priv->ibss_join_result = ret; |
| queue_work(priv->workqueue, &priv->cfg_workqueue); |
| 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); |
| |
| if (priv->disconnect) |
| return -EBUSY; |
| |
| priv->disconnect = 1; |
| |
| wiphy_dbg(wiphy, "info: disconnecting from essid %pM\n", |
| priv->cfg_bssid); |
| if (mwifiex_deauthenticate(priv, NULL)) |
| return -EFAULT; |
| |
| queue_work(priv->workqueue, &priv->cfg_workqueue); |
| |
| 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); |
| |
| wiphy_dbg(wiphy, "info: received scan request on %s\n", dev->name); |
| |
| if (priv->scan_request && priv->scan_request != request) |
| return -EBUSY; |
| |
| priv->scan_request = request; |
| |
| queue_work(priv->workqueue, &priv->cfg_workqueue); |
| 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; |
| } |
| |
| /* station cfg80211 operations */ |
| static struct cfg80211_ops mwifiex_cfg80211_ops = { |
| .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, |
| }; |
| |
| /* |
| * 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 net_device *dev, u8 *mac, |
| 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, mac, 6); |
| wdev->wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; |
| |
| /* We are using custom domains */ |
| wdev->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY; |
| |
| 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; |
| |
| 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"); |
| } |
| |
| dev_net_set(dev, wiphy_net(wdev->wiphy)); |
| dev->ieee80211_ptr = wdev; |
| memcpy(dev->dev_addr, wdev->wiphy->perm_addr, 6); |
| memcpy(dev->perm_addr, wdev->wiphy->perm_addr, 6); |
| SET_NETDEV_DEV(dev, wiphy_dev(wdev->wiphy)); |
| priv->wdev = wdev; |
| |
| dev->flags |= IFF_BROADCAST | IFF_MULTICAST; |
| dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT; |
| dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN; |
| |
| return ret; |
| } |
| |
| /* |
| * This function handles the result of different pending network operations. |
| * |
| * The following operations are handled and CFG802.11 subsystem is |
| * notified accordingly - |
| * - Scan request completion |
| * - Association request completion |
| * - IBSS join request completion |
| * - Disconnect request completion |
| */ |
| void |
| mwifiex_cfg80211_results(struct work_struct *work) |
| { |
| struct mwifiex_private *priv = |
| container_of(work, struct mwifiex_private, cfg_workqueue); |
| struct mwifiex_user_scan_cfg *scan_req; |
| int ret = 0, i; |
| struct ieee80211_channel *chan; |
| |
| if (priv->scan_request) { |
| scan_req = kzalloc(sizeof(struct mwifiex_user_scan_cfg), |
| GFP_KERNEL); |
| if (!scan_req) { |
| dev_err(priv->adapter->dev, "failed to alloc " |
| "scan_req\n"); |
| return; |
| } |
| for (i = 0; i < priv->scan_request->n_ssids; i++) { |
| memcpy(scan_req->ssid_list[i].ssid, |
| priv->scan_request->ssids[i].ssid, |
| priv->scan_request->ssids[i].ssid_len); |
| scan_req->ssid_list[i].max_len = |
| priv->scan_request->ssids[i].ssid_len; |
| } |
| for (i = 0; i < priv->scan_request->n_channels; i++) { |
| chan = priv->scan_request->channels[i]; |
| scan_req->chan_list[i].chan_number = chan->hw_value; |
| scan_req->chan_list[i].radio_type = chan->band; |
| if (chan->flags & IEEE80211_CHAN_DISABLED) |
| scan_req->chan_list[i].scan_type = |
| MWIFIEX_SCAN_TYPE_PASSIVE; |
| else |
| scan_req->chan_list[i].scan_type = |
| MWIFIEX_SCAN_TYPE_ACTIVE; |
| scan_req->chan_list[i].scan_time = 0; |
| } |
| if (mwifiex_set_user_scan_ioctl(priv, scan_req)) { |
| ret = -EFAULT; |
| goto done; |
| } |
| if (mwifiex_inform_bss_from_scan_result(priv, NULL)) |
| ret = -EFAULT; |
| done: |
| priv->scan_result_status = ret; |
| dev_dbg(priv->adapter->dev, "info: %s: sending scan results\n", |
| __func__); |
| cfg80211_scan_done(priv->scan_request, |
| (priv->scan_result_status < 0)); |
| priv->scan_request = NULL; |
| kfree(scan_req); |
| } |
| |
| if (priv->assoc_request == 1) { |
| if (!priv->assoc_result) { |
| 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); |
| } |
| priv->assoc_request = 0; |
| priv->assoc_result = 0; |
| } |
| |
| if (priv->ibss_join_request == 1) { |
| if (!priv->ibss_join_result) { |
| 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"); |
| } |
| priv->ibss_join_request = 0; |
| priv->ibss_join_result = 0; |
| } |
| |
| if (priv->disconnect) { |
| memset(priv->cfg_bssid, 0, ETH_ALEN); |
| priv->disconnect = 0; |
| } |
| } |