/* * 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" static const struct ieee80211_iface_limit mwifiex_ap_sta_limits[] = { { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), }, { .max = 1, .types = BIT(NL80211_IFTYPE_AP), }, }; static const struct ieee80211_iface_combination mwifiex_iface_comb_ap_sta = { .limits = mwifiex_ap_sta_limits, .num_different_channels = 1, .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits), .max_interfaces = MWIFIEX_MAX_BSS_NUM, .beacon_int_infra_match = true, }; /* * This function maps the nl802.11 channel type into driver channel type. * * The mapping is as follows - * NL80211_CHAN_NO_HT -> IEEE80211_HT_PARAM_CHA_SEC_NONE * NL80211_CHAN_HT20 -> IEEE80211_HT_PARAM_CHA_SEC_NONE * NL80211_CHAN_HT40PLUS -> IEEE80211_HT_PARAM_CHA_SEC_ABOVE * NL80211_CHAN_HT40MINUS -> IEEE80211_HT_PARAM_CHA_SEC_BELOW * Others -> IEEE80211_HT_PARAM_CHA_SEC_NONE */ static u8 mwifiex_cfg80211_channel_type_to_sec_chan_offset(enum nl80211_channel_type channel_type) { switch (channel_type) { case NL80211_CHAN_NO_HT: case NL80211_CHAN_HT20: return IEEE80211_HT_PARAM_CHA_SEC_NONE; case NL80211_CHAN_HT40PLUS: return IEEE80211_HT_PARAM_CHA_SEC_ABOVE; case NL80211_CHAN_HT40MINUS: return IEEE80211_HT_PARAM_CHA_SEC_BELOW; default: return IEEE80211_HT_PARAM_CHA_SEC_NONE; } } /* * 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_adapter(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_netdev_get_priv(netdev); const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; const u8 *peer_mac = pairwise ? mac_addr : bc_mac; if (mwifiex_set_encode(priv, NULL, 0, key_index, peer_mac, 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 mbm) { struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); struct mwifiex_private *priv; struct mwifiex_power_cfg power_cfg; int dbm = MBM_TO_DBM(mbm); if (type == NL80211_TX_POWER_FIXED) { power_cfg.is_power_auto = 0; power_cfg.power_level = dbm; } else { power_cfg.is_power_auto = 1; } priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); 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_netdev_get_priv(dev); u32 ps_mode; if (timeout) wiphy_dbg(wiphy, "info: ignore 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_netdev_get_priv(netdev); /* Return if WEP key not configured */ if (!priv->sec_info.wep_enabled) return 0; if (priv->bss_type == MWIFIEX_BSS_TYPE_UAP) { priv->wep_key_curr_index = key_index; } else if (mwifiex_set_encode(priv, NULL, 0, key_index, NULL, 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_netdev_get_priv(netdev); struct mwifiex_wep_key *wep_key; const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; const u8 *peer_mac = pairwise ? mac_addr : bc_mac; if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP && (params->cipher == WLAN_CIPHER_SUITE_WEP40 || params->cipher == WLAN_CIPHER_SUITE_WEP104)) { if (params->key && params->key_len) { wep_key = &priv->wep_key[key_index]; memset(wep_key, 0, sizeof(struct mwifiex_wep_key)); memcpy(wep_key->key_material, params->key, params->key_len); wep_key->key_index = key_index; wep_key->key_length = params->key_len; priv->sec_info.wep_enabled = 1; } return 0; } if (mwifiex_set_encode(priv, params->key, params->key_len, key_index, peer_mac, 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_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); struct mwifiex_private *priv; struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg; /* Set country code */ domain_info->country_code[0] = adapter->country_code[0]; domain_info->country_code[1] = adapter->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_reg_power; no_of_parsed_chan = 1; continue; } if (ch->hw_value == next_chan + 1 && ch->max_reg_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_reg_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; priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); 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_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); wiphy_dbg(wiphy, "info: cfg80211 regulatory domain callback for %c%c\n", request->alpha2[0], request->alpha2[1]); memcpy(adapter->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) { u32 config_bands = 0; struct wiphy *wiphy = priv->wdev->wiphy; struct mwifiex_adapter *adapter = priv->adapter; if (chan) { /* Set appropriate bands */ if (chan->band == IEEE80211_BAND_2GHZ) { if (channel_type == NL80211_CHAN_NO_HT) if (priv->adapter->config_bands == BAND_B || priv->adapter->config_bands == BAND_G) config_bands = priv->adapter->config_bands; else config_bands = BAND_B | BAND_G; else config_bands = BAND_B | BAND_G | BAND_GN; } else { if (channel_type == NL80211_CHAN_NO_HT) config_bands = BAND_A; else config_bands = BAND_AN | BAND_A; } if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) { adapter->config_bands = config_bands; if (priv->bss_mode == NL80211_IFTYPE_ADHOC) { adapter->adhoc_start_band = config_bands; if ((config_bands & BAND_GN) || (config_bands & BAND_AN)) adapter->adhoc_11n_enabled = true; else adapter->adhoc_11n_enabled = false; } } adapter->sec_chan_offset = mwifiex_cfg80211_channel_type_to_sec_chan_offset (channel_type); adapter->channel_type = channel_type; priv->adhoc_channel = ieee80211_frequency_to_channel(chan->center_freq); mwifiex_send_domain_info_cmd_fw(wiphy); } wiphy_dbg(wiphy, "info: setting band %d, chan offset %d, mode %d\n", config_bands, adapter->sec_chan_offset, priv->bss_mode); return 0; } /* * 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) { if (frag_thr < MWIFIEX_FRAG_MIN_VALUE || frag_thr > MWIFIEX_FRAG_MAX_VALUE) frag_thr = MWIFIEX_FRAG_MAX_VALUE; return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB, HostCmd_ACT_GEN_SET, FRAG_THRESH_I, &frag_thr); } /* * 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_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); struct mwifiex_private *priv; struct mwifiex_uap_bss_param *bss_cfg; int ret, bss_started, i; for (i = 0; i < adapter->priv_num; i++) { priv = adapter->priv[i]; switch (priv->bss_role) { case MWIFIEX_BSS_ROLE_UAP: bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL); if (!bss_cfg) return -ENOMEM; mwifiex_set_sys_config_invalid_data(bss_cfg); if (changed & WIPHY_PARAM_RTS_THRESHOLD) bss_cfg->rts_threshold = wiphy->rts_threshold; if (changed & WIPHY_PARAM_FRAG_THRESHOLD) bss_cfg->frag_threshold = wiphy->frag_threshold; if (changed & WIPHY_PARAM_RETRY_LONG) bss_cfg->retry_limit = wiphy->retry_long; bss_started = priv->bss_started; ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_UAP_BSS_STOP, HostCmd_ACT_GEN_SET, 0, NULL); if (ret) { wiphy_err(wiphy, "Failed to stop the BSS\n"); kfree(bss_cfg); return ret; } ret = mwifiex_send_cmd_async(priv, HostCmd_CMD_UAP_SYS_CONFIG, HostCmd_ACT_GEN_SET, UAP_BSS_PARAMS_I, bss_cfg); kfree(bss_cfg); if (ret) { wiphy_err(wiphy, "Failed to set bss config\n"); return ret; } if (!bss_started) break; ret = mwifiex_send_cmd_async(priv, HostCmd_CMD_UAP_BSS_START, HostCmd_ACT_GEN_SET, 0, NULL); if (ret) { wiphy_err(wiphy, "Failed to start BSS\n"); return ret; } break; case MWIFIEX_BSS_ROLE_STA: if (changed & WIPHY_PARAM_RTS_THRESHOLD) { ret = mwifiex_set_rts(priv, wiphy->rts_threshold); if (ret) return ret; } if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { ret = mwifiex_set_frag(priv, wiphy->frag_threshold); if (ret) return ret; } break; } } return 0; } /* * 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); switch (dev->ieee80211_ptr->iftype) { case NL80211_IFTYPE_ADHOC: switch (type) { case NL80211_IFTYPE_STATION: break; case NL80211_IFTYPE_UNSPECIFIED: wiphy_warn(wiphy, "%s: kept type as IBSS\n", dev->name); case NL80211_IFTYPE_ADHOC: /* This shouldn't happen */ return 0; case NL80211_IFTYPE_AP: default: wiphy_err(wiphy, "%s: changing to %d not supported\n", dev->name, type); return -EOPNOTSUPP; } break; case NL80211_IFTYPE_STATION: switch (type) { case NL80211_IFTYPE_ADHOC: break; case NL80211_IFTYPE_UNSPECIFIED: wiphy_warn(wiphy, "%s: kept type as STA\n", dev->name); case NL80211_IFTYPE_STATION: /* This shouldn't happen */ return 0; case NL80211_IFTYPE_AP: default: wiphy_err(wiphy, "%s: changing to %d not supported\n", dev->name, type); return -EOPNOTSUPP; } break; case NL80211_IFTYPE_AP: switch (type) { case NL80211_IFTYPE_UNSPECIFIED: wiphy_warn(wiphy, "%s: kept type as AP\n", dev->name); case NL80211_IFTYPE_AP: /* This shouldn't happen */ return 0; case NL80211_IFTYPE_ADHOC: case NL80211_IFTYPE_STATION: default: wiphy_err(wiphy, "%s: changing to %d not supported\n", dev->name, type); return -EOPNOTSUPP; } break; default: wiphy_err(wiphy, "%s: unknown iftype: %d\n", dev->name, dev->ieee80211_ptr->iftype); return -EOPNOTSUPP; } dev->ieee80211_ptr->iftype = type; priv->bss_mode = type; 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) { u32 rate; sinfo->filled = STATION_INFO_RX_BYTES | STATION_INFO_TX_BYTES | STATION_INFO_RX_PACKETS | STATION_INFO_TX_PACKETS | STATION_INFO_TX_BITRATE | STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG; /* Get signal information from the firmware */ if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_RSSI_INFO, HostCmd_ACT_GEN_GET, 0, NULL)) { dev_err(priv->adapter->dev, "failed to get signal information\n"); return -EFAULT; } if (mwifiex_drv_get_data_rate(priv, &rate)) { dev_err(priv->adapter->dev, "getting data rate\n"); return -EFAULT; } /* Get DTIM period information from firmware */ mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB, HostCmd_ACT_GEN_GET, DTIM_PERIOD_I, &priv->dtim_period); /* * 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->signal_avg = priv->bcn_rssi_avg; 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->bcn_rssi_avg; /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */ sinfo->txrate.legacy = rate * 5; if (priv->bss_mode == NL80211_IFTYPE_STATION) { sinfo->filled |= STATION_INFO_BSS_PARAM; sinfo->bss_param.flags = 0; if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap & WLAN_CAPABILITY_SHORT_PREAMBLE) sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_PREAMBLE; if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap & WLAN_CAPABILITY_SHORT_SLOT_TIME) sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_SLOT_TIME; sinfo->bss_param.dtim_period = priv->dtim_period; sinfo->bss_param.beacon_interval = priv->curr_bss_params.bss_descriptor.beacon_period; } return 0; } /* * 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); } /* * CFG802.11 operation handler to dump station information. */ static int mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev, int idx, u8 *mac, struct station_info *sinfo) { struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); if (!priv->media_connected || idx) return -ENOENT; memcpy(mac, priv->cfg_bssid, ETH_ALEN); return mwifiex_dump_station_info(priv, sinfo); } /* Supported rates to be advertised to the cfg80211 */ static struct ieee80211_rate mwifiex_rates[] = { {.bitrate = 10, .hw_value = 2, }, {.bitrate = 20, .hw_value = 4, }, {.bitrate = 55, .hw_value = 11, }, {.bitrate = 110, .hw_value = 22, }, {.bitrate = 60, .hw_value = 12, }, {.bitrate = 90, .hw_value = 18, }, {.bitrate = 120, .hw_value = 24, }, {.bitrate = 180, .hw_value = 36, }, {.bitrate = 240, .hw_value = 48, }, {.bitrate = 360, .hw_value = 72, }, {.bitrate = 480, .hw_value = 96, }, {.bitrate = 540, .hw_value = 108, }, }; /* Channel definitions to be advertised to cfg80211 */ static struct ieee80211_channel mwifiex_channels_2ghz[] = { {.center_freq = 2412, .hw_value = 1, }, {.center_freq = 2417, .hw_value = 2, }, {.center_freq = 2422, .hw_value = 3, }, {.center_freq = 2427, .hw_value = 4, }, {.center_freq = 2432, .hw_value = 5, }, {.center_freq = 2437, .hw_value = 6, }, {.center_freq = 2442, .hw_value = 7, }, {.center_freq = 2447, .hw_value = 8, }, {.center_freq = 2452, .hw_value = 9, }, {.center_freq = 2457, .hw_value = 10, }, {.center_freq = 2462, .hw_value = 11, }, {.center_freq = 2467, .hw_value = 12, }, {.center_freq = 2472, .hw_value = 13, }, {.center_freq = 2484, .hw_value = 14, }, }; static struct ieee80211_supported_band mwifiex_band_2ghz = { .channels = mwifiex_channels_2ghz, .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz), .bitrates = mwifiex_rates, .n_bitrates = ARRAY_SIZE(mwifiex_rates), }; 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 connection quality monitoring. * * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI * events to FW. */ static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy, struct net_device *dev, s32 rssi_thold, u32 rssi_hyst) { struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); struct mwifiex_ds_misc_subsc_evt subsc_evt; priv->cqm_rssi_thold = rssi_thold; priv->cqm_rssi_hyst = rssi_hyst; memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt)); subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH; /* Subscribe/unsubscribe low and high rssi events */ if (rssi_thold && rssi_hyst) { subsc_evt.action = HostCmd_ACT_BITWISE_SET; subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold); subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold); subsc_evt.bcn_l_rssi_cfg.evt_freq = 1; subsc_evt.bcn_h_rssi_cfg.evt_freq = 1; return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SUBSCRIBE_EVENT, 0, 0, &subsc_evt); } else { subsc_evt.action = HostCmd_ACT_BITWISE_CLR; return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SUBSCRIBE_EVENT, 0, 0, &subsc_evt); } return 0; } /* cfg80211 operation handler for change_beacon. * Function retrieves and sets modified management IEs to FW. */ static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, struct cfg80211_beacon_data *data) { struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); if (priv->bss_type != MWIFIEX_BSS_TYPE_UAP) { wiphy_err(wiphy, "%s: bss_type mismatched\n", __func__); return -EINVAL; } if (!priv->bss_started) { wiphy_err(wiphy, "%s: bss not started\n", __func__); return -EINVAL; } if (mwifiex_set_mgmt_ies(priv, data)) { wiphy_err(wiphy, "%s: setting mgmt ies failed\n", __func__); return -EFAULT; } return 0; } static int mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) { struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); struct mwifiex_private *priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); struct mwifiex_ds_ant_cfg ant_cfg; if (!tx_ant || !rx_ant) return -EOPNOTSUPP; if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) { /* Not a MIMO chip. User should provide specific antenna number * for Tx/Rx path or enable all antennas for diversity */ if (tx_ant != rx_ant) return -EOPNOTSUPP; if ((tx_ant & (tx_ant - 1)) && (tx_ant != BIT(adapter->number_of_antenna) - 1)) return -EOPNOTSUPP; if ((tx_ant == BIT(adapter->number_of_antenna) - 1) && (priv->adapter->number_of_antenna > 1)) { tx_ant = RF_ANTENNA_AUTO; rx_ant = RF_ANTENNA_AUTO; } } ant_cfg.tx_ant = tx_ant; ant_cfg.rx_ant = rx_ant; return mwifiex_send_cmd_sync(priv, HostCmd_CMD_RF_ANTENNA, HostCmd_ACT_GEN_SET, 0, &ant_cfg); } /* cfg80211 operation handler for stop ap. * Function stops BSS running at uAP interface. */ static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev) { struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); if (mwifiex_del_mgmt_ies(priv)) wiphy_err(wiphy, "Failed to delete mgmt IEs!\n"); if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_UAP_BSS_STOP, HostCmd_ACT_GEN_SET, 0, NULL)) { wiphy_err(wiphy, "Failed to stop the BSS\n"); return -1; } return 0; } /* cfg80211 operation handler for start_ap. * Function sets beacon period, DTIM period, SSID and security into * AP config structure. * AP is configured with these settings and BSS is started. */ static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy, struct net_device *dev, struct cfg80211_ap_settings *params) { struct mwifiex_uap_bss_param *bss_cfg; struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); if (priv->bss_type != MWIFIEX_BSS_TYPE_UAP) return -1; if (mwifiex_set_mgmt_ies(priv, ¶ms->beacon)) return -1; bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL); if (!bss_cfg) return -ENOMEM; mwifiex_set_sys_config_invalid_data(bss_cfg); if (params->beacon_interval) bss_cfg->beacon_period = params->beacon_interval; if (params->dtim_period) bss_cfg->dtim_period = params->dtim_period; if (params->ssid && params->ssid_len) { memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len); bss_cfg->ssid.ssid_len = params->ssid_len; } switch (params->hidden_ssid) { case NL80211_HIDDEN_SSID_NOT_IN_USE: bss_cfg->bcast_ssid_ctl = 1; break; case NL80211_HIDDEN_SSID_ZERO_LEN: bss_cfg->bcast_ssid_ctl = 0; break; case NL80211_HIDDEN_SSID_ZERO_CONTENTS: /* firmware doesn't support this type of hidden SSID */ default: kfree(bss_cfg); return -EINVAL; } bss_cfg->channel = (u8)ieee80211_frequency_to_channel(params->channel->center_freq); bss_cfg->band_cfg = BAND_CONFIG_MANUAL; if (mwifiex_set_rf_channel(priv, params->channel, params->channel_type)) { kfree(bss_cfg); wiphy_err(wiphy, "Failed to set band config information!\n"); return -1; } if (mwifiex_set_secure_params(priv, bss_cfg, params)) { kfree(bss_cfg); wiphy_err(wiphy, "Failed to parse secuirty parameters!\n"); return -1; } mwifiex_set_ht_params(priv, bss_cfg, params); if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_UAP_BSS_STOP, HostCmd_ACT_GEN_SET, 0, NULL)) { wiphy_err(wiphy, "Failed to stop the BSS\n"); kfree(bss_cfg); return -1; } if (mwifiex_send_cmd_async(priv, HostCmd_CMD_UAP_SYS_CONFIG, HostCmd_ACT_GEN_SET, UAP_BSS_PARAMS_I, bss_cfg)) { wiphy_err(wiphy, "Failed to set the SSID\n"); kfree(bss_cfg); return -1; } kfree(bss_cfg); if (mwifiex_send_cmd_async(priv, HostCmd_CMD_UAP_BSS_START, HostCmd_ACT_GEN_SET, 0, NULL)) { wiphy_err(wiphy, "Failed to start the BSS\n"); return -1; } if (priv->sec_info.wep_enabled) priv->curr_pkt_filter |= HostCmd_ACT_MAC_WEP_ENABLE; else priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_WEP_ENABLE; if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_MAC_CONTROL, HostCmd_ACT_GEN_SET, 0, &priv->curr_pkt_filter)) return -1; 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 cfg80211_ssid req_ssid; int ret, auth_type = 0; struct cfg80211_bss *bss = NULL; u8 is_scanning_required = 0; memset(&req_ssid, 0, sizeof(struct cfg80211_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); /* As this is new association, clear locally stored * keys and security related flags */ priv->sec_info.wpa_enabled = false; priv->sec_info.wpa2_enabled = false; priv->wep_key_curr_index = 0; priv->sec_info.encryption_mode = 0; priv->sec_info.is_authtype_auto = 0; ret = mwifiex_set_encode(priv, NULL, 0, 0, NULL, 1); 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) { auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM; priv->sec_info.is_authtype_auto = 1; } else { auth_type = sme->auth_type; } 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); priv->wep_key_curr_index = sme->key_idx; ret = mwifiex_set_encode(priv, sme->key, sme->key_len, sme->key_idx, NULL, 0); } } done: /* * 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' 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; } if (priv->bss_mode == NL80211_IFTYPE_AP) { wiphy_err(wiphy, "skip association request for AP interface\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_netdev_get_priv(dev); 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_netdev_get_priv(dev); 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 cfg80211_scan_request *request) { struct net_device *dev = request->wdev->netdev; 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; } priv->user_scan_cfg->num_ssids = request->n_ssids; priv->user_scan_cfg->ssid_list = request->ssids; if (request->ie && request->ie_len) { for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) { if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR) continue; priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN; memcpy(&priv->vs_ie[i].ie, request->ie, request->ie_len); break; } } 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_scan_networks(priv, priv->user_scan_cfg)) return -EFAULT; if (request->ie && request->ie_len) { for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) { if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) { priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR; memset(&priv->vs_ie[i].ie, 0, MWIFIEX_MAX_VSIE_LEN); } } } 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 wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy, char *name, enum nl80211_iftype type, u32 *flags, struct vif_params *params) { struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); struct mwifiex_private *priv; struct net_device *dev; void *mdev_priv; struct wireless_dev *wdev; if (!adapter) return ERR_PTR(-EFAULT); switch (type) { case NL80211_IFTYPE_UNSPECIFIED: case NL80211_IFTYPE_STATION: case NL80211_IFTYPE_ADHOC: priv = adapter->priv[MWIFIEX_BSS_TYPE_STA]; if (priv->bss_mode) { wiphy_err(wiphy, "cannot create multiple sta/adhoc ifaces\n"); return ERR_PTR(-EINVAL); } wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL); if (!wdev) return ERR_PTR(-ENOMEM); wdev->wiphy = wiphy; priv->wdev = wdev; wdev->iftype = NL80211_IFTYPE_STATION; 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 = MWIFIEX_BSS_ROLE_STA; priv->bss_role = MWIFIEX_BSS_ROLE_STA; priv->bss_num = 0; break; case NL80211_IFTYPE_AP: priv = adapter->priv[MWIFIEX_BSS_TYPE_UAP]; if (priv->bss_mode) { wiphy_err(wiphy, "Can't create multiple AP interfaces"); return ERR_PTR(-EINVAL); } wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL); if (!wdev) return ERR_PTR(-ENOMEM); priv->wdev = wdev; wdev->wiphy = wiphy; wdev->iftype = NL80211_IFTYPE_AP; priv->bss_type = MWIFIEX_BSS_TYPE_UAP; priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II; priv->bss_priority = MWIFIEX_BSS_ROLE_UAP; priv->bss_role = MWIFIEX_BSS_ROLE_UAP; priv->bss_started = 0; priv->bss_num = 0; priv->bss_mode = type; break; default: wiphy_err(wiphy, "type not supported\n"); return ERR_PTR(-EINVAL); } dev = alloc_netdev_mq(sizeof(struct mwifiex_private *), name, ether_setup, 1); if (!dev) { wiphy_err(wiphy, "no memory available for netdevice\n"); priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED; return ERR_PTR(-ENOMEM); } mwifiex_init_priv_params(priv, dev); priv->netdev = dev; mwifiex_setup_ht_caps(&wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap, priv); if (adapter->config_bands & BAND_A) mwifiex_setup_ht_caps( &wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap, priv); dev_net_set(dev, wiphy_net(wiphy)); dev->ieee80211_ptr = priv->wdev; dev->ieee80211_ptr->iftype = priv->bss_mode; memcpy(dev->dev_addr, wiphy->perm_addr, ETH_ALEN); memcpy(dev->perm_addr, wiphy->perm_addr, ETH_ALEN); SET_NETDEV_DEV(dev, wiphy_dev(wiphy)); dev->flags |= IFF_BROADCAST | IFF_MULTICAST; dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT; dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN; mdev_priv = netdev_priv(dev); *((unsigned long *) mdev_priv) = (unsigned long) priv; SET_NETDEV_DEV(dev, adapter->dev); /* Register network device */ if (register_netdevice(dev)) { wiphy_err(wiphy, "cannot register virtual network device\n"); free_netdev(dev); priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED; return ERR_PTR(-EFAULT); } 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 wdev; } 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 wireless_dev *wdev) { struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev); #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 (wdev->netdev->reg_state == NETREG_REGISTERED) unregister_netdevice(wdev->netdev); if (wdev->netdev->reg_state == NETREG_UNREGISTERED) free_netdev(wdev->netdev); /* 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, .dump_station = mwifiex_cfg80211_dump_station, .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params, .join_ibss = mwifiex_cfg80211_join_ibss, .leave_ibss = mwifiex_cfg80211_leave_ibss, .add_key = mwifiex_cfg80211_add_key, .del_key = mwifiex_cfg80211_del_key, .set_default_key = mwifiex_cfg80211_set_default_key, .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt, .set_tx_power = mwifiex_cfg80211_set_tx_power, .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask, .start_ap = mwifiex_cfg80211_start_ap, .stop_ap = mwifiex_cfg80211_stop_ap, .change_beacon = mwifiex_cfg80211_change_beacon, .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config, .set_antenna = mwifiex_cfg80211_set_antenna, }; /* * 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_adapter *adapter) { int ret; void *wdev_priv; struct wiphy *wiphy; struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA]; u8 *country_code; /* create a new wiphy for use with cfg80211 */ wiphy = wiphy_new(&mwifiex_cfg80211_ops, sizeof(struct mwifiex_adapter *)); if (!wiphy) { dev_err(adapter->dev, "%s: creating new wiphy\n", __func__); return -ENOMEM; } wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH; wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN; wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_ADHOC) | BIT(NL80211_IFTYPE_AP); wiphy->bands[IEEE80211_BAND_2GHZ] = &mwifiex_band_2ghz; if (adapter->config_bands & BAND_A) wiphy->bands[IEEE80211_BAND_5GHZ] = &mwifiex_band_5ghz; else wiphy->bands[IEEE80211_BAND_5GHZ] = NULL; wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta; wiphy->n_iface_combinations = 1; /* Initialize cipher suits */ wiphy->cipher_suites = mwifiex_cipher_suites; wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites); memcpy(wiphy->perm_addr, priv->curr_addr, ETH_ALEN); wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME | WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD; wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS | NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2; wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1; wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1; /* Reserve space for mwifiex specific private data for BSS */ wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv); wiphy->reg_notifier = mwifiex_reg_notifier; /* Set struct mwifiex_adapter pointer in wiphy_priv */ wdev_priv = wiphy_priv(wiphy); *(unsigned long *)wdev_priv = (unsigned long)adapter; set_wiphy_dev(wiphy, (struct device *)priv->adapter->dev); ret = wiphy_register(wiphy); if (ret < 0) { dev_err(adapter->dev, "%s: wiphy_register failed: %d\n", __func__, ret); wiphy_free(wiphy); return ret; } country_code = mwifiex_11d_code_2_region(priv->adapter->region_code); if (country_code && regulatory_hint(wiphy, country_code)) dev_err(adapter->dev, "regulatory_hint() failed\n"); adapter->wiphy = wiphy; return ret; }