diff options
Diffstat (limited to 'drivers/net/wireless/mwifiex/cfg80211.c')
| -rw-r--r-- | drivers/net/wireless/mwifiex/cfg80211.c | 3597 |
1 files changed, 3597 insertions, 0 deletions
diff --git a/drivers/net/wireless/mwifiex/cfg80211.c b/drivers/net/wireless/mwifiex/cfg80211.c new file mode 100644 index 000000000..bf9020ff2 --- /dev/null +++ b/drivers/net/wireless/mwifiex/cfg80211.c @@ -0,0 +1,3597 @@ +/* + * Marvell Wireless LAN device driver: CFG80211 + * + * Copyright (C) 2011-2014, 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 char *reg_alpha2; +module_param(reg_alpha2, charp, 0); + +static const struct ieee80211_iface_limit mwifiex_ap_sta_limits[] = { + { + .max = 2, .types = BIT(NL80211_IFTYPE_STATION) | + BIT(NL80211_IFTYPE_P2P_GO) | + BIT(NL80211_IFTYPE_P2P_CLIENT), + }, + { + .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 + */ +u8 mwifiex_chan_type_to_sec_chan_offset(enum nl80211_channel_type chan_type) +{ + switch (chan_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, 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; +} + +/* + * This function forms an skb for management frame. + */ +static int +mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len) +{ + u8 addr[ETH_ALEN] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}; + u16 pkt_len; + u32 tx_control = 0, pkt_type = PKT_TYPE_MGMT; + + pkt_len = len + ETH_ALEN; + + skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN + + MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(pkt_len)); + memcpy(skb_push(skb, sizeof(pkt_len)), &pkt_len, sizeof(pkt_len)); + + memcpy(skb_push(skb, sizeof(tx_control)), + &tx_control, sizeof(tx_control)); + + memcpy(skb_push(skb, sizeof(pkt_type)), &pkt_type, sizeof(pkt_type)); + + /* Add packet data and address4 */ + memcpy(skb_put(skb, sizeof(struct ieee80211_hdr_3addr)), buf, + sizeof(struct ieee80211_hdr_3addr)); + memcpy(skb_put(skb, ETH_ALEN), addr, ETH_ALEN); + memcpy(skb_put(skb, len - sizeof(struct ieee80211_hdr_3addr)), + buf + sizeof(struct ieee80211_hdr_3addr), + len - sizeof(struct ieee80211_hdr_3addr)); + + skb->priority = LOW_PRIO_TID; + __net_timestamp(skb); + + return 0; +} + +/* + * CFG802.11 operation handler to transmit a management frame. + */ +static int +mwifiex_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, + struct cfg80211_mgmt_tx_params *params, u64 *cookie) +{ + const u8 *buf = params->buf; + size_t len = params->len; + struct sk_buff *skb; + u16 pkt_len; + const struct ieee80211_mgmt *mgmt; + struct mwifiex_txinfo *tx_info; + struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev); + + if (!buf || !len) { + wiphy_err(wiphy, "invalid buffer and length\n"); + return -EFAULT; + } + + mgmt = (const struct ieee80211_mgmt *)buf; + if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA && + ieee80211_is_probe_resp(mgmt->frame_control)) { + /* Since we support offload probe resp, we need to skip probe + * resp in AP or GO mode */ + wiphy_dbg(wiphy, + "info: skip to send probe resp in AP or GO mode\n"); + return 0; + } + + pkt_len = len + ETH_ALEN; + skb = dev_alloc_skb(MWIFIEX_MIN_DATA_HEADER_LEN + + MWIFIEX_MGMT_FRAME_HEADER_SIZE + + pkt_len + sizeof(pkt_len)); + + if (!skb) { + wiphy_err(wiphy, "allocate skb failed for management frame\n"); + return -ENOMEM; + } + + tx_info = MWIFIEX_SKB_TXCB(skb); + memset(tx_info, 0, sizeof(*tx_info)); + tx_info->bss_num = priv->bss_num; + tx_info->bss_type = priv->bss_type; + tx_info->pkt_len = pkt_len; + + mwifiex_form_mgmt_frame(skb, buf, len); + *cookie = prandom_u32() | 1; + + if (ieee80211_is_action(mgmt->frame_control)) + skb = mwifiex_clone_skb_for_tx_status(priv, + skb, + MWIFIEX_BUF_FLAG_ACTION_TX_STATUS, cookie); + else + cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true, + GFP_ATOMIC); + + mwifiex_queue_tx_pkt(priv, skb); + + wiphy_dbg(wiphy, "info: management frame transmitted\n"); + return 0; +} + +/* + * CFG802.11 operation handler to register a mgmt frame. + */ +static void +mwifiex_cfg80211_mgmt_frame_register(struct wiphy *wiphy, + struct wireless_dev *wdev, + u16 frame_type, bool reg) +{ + struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev); + u32 mask; + + if (reg) + mask = priv->mgmt_frame_mask | BIT(frame_type >> 4); + else + mask = priv->mgmt_frame_mask & ~BIT(frame_type >> 4); + + if (mask != priv->mgmt_frame_mask) { + priv->mgmt_frame_mask = mask; + mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG, + HostCmd_ACT_GEN_SET, 0, + &priv->mgmt_frame_mask, false); + wiphy_dbg(wiphy, "info: mgmt frame registered\n"); + } +} + +/* + * CFG802.11 operation handler to remain on channel. + */ +static int +mwifiex_cfg80211_remain_on_channel(struct wiphy *wiphy, + struct wireless_dev *wdev, + struct ieee80211_channel *chan, + unsigned int duration, u64 *cookie) +{ + struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev); + int ret; + + if (!chan || !cookie) { + wiphy_err(wiphy, "Invalid parameter for ROC\n"); + return -EINVAL; + } + + if (priv->roc_cfg.cookie) { + wiphy_dbg(wiphy, "info: ongoing ROC, cookie = 0x%llx\n", + priv->roc_cfg.cookie); + return -EBUSY; + } + + ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_SET, chan, + duration); + + if (!ret) { + *cookie = prandom_u32() | 1; + priv->roc_cfg.cookie = *cookie; + priv->roc_cfg.chan = *chan; + + cfg80211_ready_on_channel(wdev, *cookie, chan, + duration, GFP_ATOMIC); + + wiphy_dbg(wiphy, "info: ROC, cookie = 0x%llx\n", *cookie); + } + + return ret; +} + +/* + * CFG802.11 operation handler to cancel remain on channel. + */ +static int +mwifiex_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy, + struct wireless_dev *wdev, u64 cookie) +{ + struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev); + int ret; + + if (cookie != priv->roc_cfg.cookie) + return -ENOENT; + + ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_REMOVE, + &priv->roc_cfg.chan, 0); + + if (!ret) { + cfg80211_remain_on_channel_expired(wdev, cookie, + &priv->roc_cfg.chan, + GFP_ATOMIC); + + memset(&priv->roc_cfg, 0, sizeof(struct mwifiex_roc_cfg)); + + wiphy_dbg(wiphy, "info: cancel ROC, cookie = 0x%llx\n", cookie); + } + + return ret; +} + +/* + * CFG802.11 operation handler to set Tx power. + */ +static int +mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy, + struct wireless_dev *wdev, + 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, 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, 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_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; + + priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); + + if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11D_DOMAIN_INFO, + HostCmd_ACT_GEN_SET, 0, NULL, false)) { + 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 void mwifiex_reg_notifier(struct wiphy *wiphy, + struct regulatory_request *request) +{ + struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); + struct mwifiex_private *priv = mwifiex_get_priv(adapter, + MWIFIEX_BSS_ROLE_ANY); + + wiphy_dbg(wiphy, "info: cfg80211 regulatory domain callback for %c%c\n", + request->alpha2[0], request->alpha2[1]); + + switch (request->initiator) { + case NL80211_REGDOM_SET_BY_DRIVER: + case NL80211_REGDOM_SET_BY_CORE: + case NL80211_REGDOM_SET_BY_USER: + case NL80211_REGDOM_SET_BY_COUNTRY_IE: + break; + default: + wiphy_err(wiphy, "unknown regdom initiator: %d\n", + request->initiator); + return; + } + + /* Don't send world or same regdom info to firmware */ + if (strncmp(request->alpha2, "00", 2) && + strncmp(request->alpha2, adapter->country_code, + sizeof(request->alpha2))) { + memcpy(adapter->country_code, request->alpha2, + sizeof(request->alpha2)); + mwifiex_send_domain_info_cmd_fw(wiphy); + mwifiex_dnld_txpwr_table(priv); + } +} + +/* + * 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(priv, HostCmd_CMD_802_11_SNMP_MIB, + HostCmd_ACT_GEN_SET, FRAG_THRESH_I, + &frag_thr, true); +} + +/* + * 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(priv, HostCmd_CMD_802_11_SNMP_MIB, + HostCmd_ACT_GEN_SET, RTS_THRESH_I, + &rts_thr, true); +} + +/* + * 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; + + priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); + + switch (priv->bss_role) { + case MWIFIEX_BSS_ROLE_UAP: + if (priv->bss_started) { + dev_err(adapter->dev, + "cannot change wiphy params when bss started"); + return -EINVAL; + } + + bss_cfg = kzalloc(sizeof(*bss_cfg), 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; + + ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_SYS_CONFIG, + HostCmd_ACT_GEN_SET, + UAP_BSS_PARAMS_I, bss_cfg, + false); + + kfree(bss_cfg); + if (ret) { + wiphy_err(wiphy, "Failed to set wiphy phy params\n"); + return ret; + } + break; + + case MWIFIEX_BSS_ROLE_STA: + if (priv->media_connected) { + dev_err(adapter->dev, + "cannot change wiphy params when connected"); + return -EINVAL; + } + 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; +} + +static int +mwifiex_cfg80211_deinit_p2p(struct mwifiex_private *priv) +{ + u16 mode = P2P_MODE_DISABLE; + + if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG, + HostCmd_ACT_GEN_SET, 0, &mode, true)) + return -1; + + return 0; +} + +/* + * This function initializes the functionalities for P2P client. + * The P2P client initialization sequence is: + * disable -> device -> client + */ +static int +mwifiex_cfg80211_init_p2p_client(struct mwifiex_private *priv) +{ + u16 mode; + + if (mwifiex_cfg80211_deinit_p2p(priv)) + return -1; + + mode = P2P_MODE_DEVICE; + if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG, + HostCmd_ACT_GEN_SET, 0, &mode, true)) + return -1; + + mode = P2P_MODE_CLIENT; + if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG, + HostCmd_ACT_GEN_SET, 0, &mode, true)) + return -1; + + return 0; +} + +/* + * This function initializes the functionalities for P2P GO. + * The P2P GO initialization sequence is: + * disable -> device -> GO + */ +static int +mwifiex_cfg80211_init_p2p_go(struct mwifiex_private *priv) +{ + u16 mode; + + if (mwifiex_cfg80211_deinit_p2p(priv)) + return -1; + + mode = P2P_MODE_DEVICE; + if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG, + HostCmd_ACT_GEN_SET, 0, &mode, true)) + return -1; + + mode = P2P_MODE_GO; + if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG, + HostCmd_ACT_GEN_SET, 0, &mode, true)) + return -1; + + return 0; +} + +static int mwifiex_deinit_priv_params(struct mwifiex_private *priv) +{ + struct mwifiex_adapter *adapter = priv->adapter; + unsigned long flags; + + priv->mgmt_frame_mask = 0; + if (mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG, + HostCmd_ACT_GEN_SET, 0, + &priv->mgmt_frame_mask, false)) { + dev_warn(priv->adapter->dev, + "could not unregister mgmt frame rx\n"); + return -1; + } + + mwifiex_deauthenticate(priv, NULL); + + spin_lock_irqsave(&adapter->main_proc_lock, flags); + adapter->main_locked = true; + if (adapter->mwifiex_processing) { + spin_unlock_irqrestore(&adapter->main_proc_lock, flags); + flush_workqueue(adapter->workqueue); + } else { + spin_unlock_irqrestore(&adapter->main_proc_lock, flags); + } + + spin_lock_irqsave(&adapter->rx_proc_lock, flags); + adapter->rx_locked = true; + if (adapter->rx_processing) { + spin_unlock_irqrestore(&adapter->rx_proc_lock, flags); + flush_workqueue(adapter->rx_workqueue); + } else { + spin_unlock_irqrestore(&adapter->rx_proc_lock, flags); + } + + mwifiex_free_priv(priv); + priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED; + priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED; + priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM; + + return 0; +} + +static int +mwifiex_init_new_priv_params(struct mwifiex_private *priv, + struct net_device *dev, + enum nl80211_iftype type) +{ + struct mwifiex_adapter *adapter = priv->adapter; + unsigned long flags; + + mwifiex_init_priv(priv); + + priv->bss_mode = type; + priv->wdev.iftype = type; + + mwifiex_init_priv_params(priv, priv->netdev); + priv->bss_started = 0; + + switch (type) { + case NL80211_IFTYPE_STATION: + case NL80211_IFTYPE_ADHOC: + priv->bss_role = MWIFIEX_BSS_ROLE_STA; + priv->bss_type = MWIFIEX_BSS_TYPE_STA; + break; + case NL80211_IFTYPE_P2P_CLIENT: + case NL80211_IFTYPE_P2P_GO: + priv->bss_role = MWIFIEX_BSS_ROLE_STA; + priv->bss_type = MWIFIEX_BSS_TYPE_P2P; + break; + case NL80211_IFTYPE_AP: + priv->bss_type = MWIFIEX_BSS_TYPE_UAP; + priv->bss_role = MWIFIEX_BSS_ROLE_UAP; + break; + default: + dev_err(priv->adapter->dev, + "%s: changing to %d not supported\n", + dev->name, type); + return -EOPNOTSUPP; + } + + spin_lock_irqsave(&adapter->main_proc_lock, flags); + adapter->main_locked = false; + spin_unlock_irqrestore(&adapter->main_proc_lock, flags); + + spin_lock_irqsave(&adapter->rx_proc_lock, flags); + adapter->rx_locked = false; + spin_unlock_irqrestore(&adapter->rx_proc_lock, flags); + + return 0; +} + +static int +mwifiex_change_vif_to_p2p(struct net_device *dev, + enum nl80211_iftype curr_iftype, + enum nl80211_iftype type, u32 *flags, + struct vif_params *params) +{ + struct mwifiex_private *priv; + struct mwifiex_adapter *adapter; + + priv = mwifiex_netdev_get_priv(dev); + + if (!priv) + return -1; + + adapter = priv->adapter; + + if (adapter->curr_iface_comb.p2p_intf == + adapter->iface_limit.p2p_intf) { + dev_err(adapter->dev, + "cannot create multiple P2P ifaces\n"); + return -1; + } + + dev_dbg(priv->adapter->dev, "%s: changing role to p2p\n", dev->name); + + if (mwifiex_deinit_priv_params(priv)) + return -1; + if (mwifiex_init_new_priv_params(priv, dev, type)) + return -1; + + switch (type) { + case NL80211_IFTYPE_P2P_CLIENT: + if (mwifiex_cfg80211_init_p2p_client(priv)) + return -EFAULT; + break; + case NL80211_IFTYPE_P2P_GO: + if (mwifiex_cfg80211_init_p2p_go(priv)) + return -EFAULT; + break; + default: + dev_err(priv->adapter->dev, + "%s: changing to %d not supported\n", + dev->name, type); + return -EOPNOTSUPP; + } + + if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE, + HostCmd_ACT_GEN_SET, 0, NULL, true)) + return -1; + + if (mwifiex_sta_init_cmd(priv, false, false)) + return -1; + + switch (curr_iftype) { + case NL80211_IFTYPE_STATION: + case NL80211_IFTYPE_ADHOC: + adapter->curr_iface_comb.sta_intf--; + break; + case NL80211_IFTYPE_AP: + adapter->curr_iface_comb.uap_intf--; + break; + default: + break; + } + + adapter->curr_iface_comb.p2p_intf++; + dev->ieee80211_ptr->iftype = type; + + return 0; +} + +static int +mwifiex_change_vif_to_sta_adhoc(struct net_device *dev, + enum nl80211_iftype curr_iftype, + enum nl80211_iftype type, u32 *flags, + struct vif_params *params) +{ + struct mwifiex_private *priv; + struct mwifiex_adapter *adapter; + + priv = mwifiex_netdev_get_priv(dev); + + if (!priv) + return -1; + + adapter = priv->adapter; + + if ((curr_iftype != NL80211_IFTYPE_P2P_CLIENT && + curr_iftype != NL80211_IFTYPE_P2P_GO) && + (adapter->curr_iface_comb.sta_intf == + adapter->iface_limit.sta_intf)) { + dev_err(adapter->dev, + "cannot create multiple station/adhoc ifaces\n"); + return -1; + } + + if (type == NL80211_IFTYPE_STATION) + dev_notice(adapter->dev, + "%s: changing role to station\n", dev->name); + else + dev_notice(adapter->dev, + "%s: changing role to adhoc\n", dev->name); + + if (mwifiex_deinit_priv_params(priv)) + return -1; + if (mwifiex_init_new_priv_params(priv, dev, type)) + return -1; + if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE, + HostCmd_ACT_GEN_SET, 0, NULL, true)) + return -1; + if (mwifiex_sta_init_cmd(priv, false, false)) + return -1; + + switch (curr_iftype) { + case NL80211_IFTYPE_P2P_CLIENT: + case NL80211_IFTYPE_P2P_GO: + adapter->curr_iface_comb.p2p_intf--; + break; + case NL80211_IFTYPE_AP: + adapter->curr_iface_comb.uap_intf--; + break; + default: + break; + } + + adapter->curr_iface_comb.sta_intf++; + dev->ieee80211_ptr->iftype = type; + return 0; +} + +static int +mwifiex_change_vif_to_ap(struct net_device *dev, + enum nl80211_iftype curr_iftype, + enum nl80211_iftype type, u32 *flags, + struct vif_params *params) +{ + struct mwifiex_private *priv; + struct mwifiex_adapter *adapter; + + priv = mwifiex_netdev_get_priv(dev); + + if (!priv) + return -1; + + adapter = priv->adapter; + + if (adapter->curr_iface_comb.uap_intf == + adapter->iface_limit.uap_intf) { + dev_err(adapter->dev, + "cannot create multiple AP ifaces\n"); + return -1; + } + + dev_notice(adapter->dev, "%s: changing role to AP\n", dev->name); + + if (mwifiex_deinit_priv_params(priv)) + return -1; + if (mwifiex_init_new_priv_params(priv, dev, type)) + return -1; + if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE, + HostCmd_ACT_GEN_SET, 0, NULL, true)) + return -1; + if (mwifiex_sta_init_cmd(priv, false, false)) + return -1; + + switch (curr_iftype) { + case NL80211_IFTYPE_P2P_CLIENT: + case NL80211_IFTYPE_P2P_GO: + adapter->curr_iface_comb.p2p_intf--; + break; + case NL80211_IFTYPE_STATION: + case NL80211_IFTYPE_ADHOC: + adapter->curr_iface_comb.sta_intf--; + break; + default: + break; + } + + adapter->curr_iface_comb.uap_intf++; + dev->ieee80211_ptr->iftype = type; + return 0; +} +/* + * CFG802.11 operation handler to change interface type. + */ +static int +mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy, + struct net_device *dev, + enum nl80211_iftype type, u32 *flags, + struct vif_params *params) +{ + struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); + enum nl80211_iftype curr_iftype = dev->ieee80211_ptr->iftype; + + switch (curr_iftype) { + case NL80211_IFTYPE_ADHOC: + switch (type) { + case NL80211_IFTYPE_STATION: + priv->bss_mode = type; + priv->sec_info.authentication_mode = + NL80211_AUTHTYPE_OPEN_SYSTEM; + dev->ieee80211_ptr->iftype = type; + mwifiex_deauthenticate(priv, NULL); + return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE, + HostCmd_ACT_GEN_SET, 0, NULL, + true); + case NL80211_IFTYPE_P2P_CLIENT: + case NL80211_IFTYPE_P2P_GO: + return mwifiex_change_vif_to_p2p(dev, curr_iftype, + type, flags, params); + case NL80211_IFTYPE_AP: + return mwifiex_change_vif_to_ap(dev, curr_iftype, type, + flags, params); + 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; + 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: + priv->bss_mode = type; + priv->sec_info.authentication_mode = + NL80211_AUTHTYPE_OPEN_SYSTEM; + dev->ieee80211_ptr->iftype = type; + mwifiex_deauthenticate(priv, NULL); + return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE, + HostCmd_ACT_GEN_SET, 0, NULL, + true); + case NL80211_IFTYPE_P2P_CLIENT: + case NL80211_IFTYPE_P2P_GO: + return mwifiex_change_vif_to_p2p(dev, curr_iftype, + type, flags, params); + case NL80211_IFTYPE_AP: + return mwifiex_change_vif_to_ap(dev, curr_iftype, type, + flags, params); + 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; + 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_ADHOC: + case NL80211_IFTYPE_STATION: + return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype, + type, flags, + params); + break; + case NL80211_IFTYPE_P2P_CLIENT: + case NL80211_IFTYPE_P2P_GO: + return mwifiex_change_vif_to_p2p(dev, curr_iftype, + type, flags, params); + 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; + default: + wiphy_err(wiphy, "%s: changing to %d not supported\n", + dev->name, type); + return -EOPNOTSUPP; + } + break; + case NL80211_IFTYPE_P2P_CLIENT: + case NL80211_IFTYPE_P2P_GO: + switch (type) { + case NL80211_IFTYPE_STATION: + if (mwifiex_cfg80211_init_p2p_client(priv)) + return -EFAULT; + dev->ieee80211_ptr->iftype = type; + break; + case NL80211_IFTYPE_ADHOC: + if (mwifiex_cfg80211_deinit_p2p(priv)) + return -EFAULT; + return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype, + type, flags, + params); + break; + case NL80211_IFTYPE_AP: + if (mwifiex_cfg80211_deinit_p2p(priv)) + return -EFAULT; + return mwifiex_change_vif_to_ap(dev, curr_iftype, type, + flags, params); + case NL80211_IFTYPE_UNSPECIFIED: + wiphy_warn(wiphy, "%s: kept type as P2P\n", dev->name); + case NL80211_IFTYPE_P2P_CLIENT: + case NL80211_IFTYPE_P2P_GO: + return 0; + 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; + } + + + return 0; +} + +static void +mwifiex_parse_htinfo(struct mwifiex_private *priv, u8 tx_htinfo, + struct rate_info *rate) +{ + struct mwifiex_adapter *adapter = priv->adapter; + + if (adapter->is_hw_11ac_capable) { + /* bit[1-0]: 00=LG 01=HT 10=VHT */ + if (tx_htinfo & BIT(0)) { + /* HT */ + rate->mcs = priv->tx_rate; + rate->flags |= RATE_INFO_FLAGS_MCS; + } + if (tx_htinfo & BIT(1)) { + /* VHT */ + rate->mcs = priv->tx_rate & 0x0F; + rate->flags |= RATE_INFO_FLAGS_VHT_MCS; + } + + if (tx_htinfo & (BIT(1) | BIT(0))) { + /* HT or VHT */ + switch (tx_htinfo & (BIT(3) | BIT(2))) { + case 0: + rate->bw = RATE_INFO_BW_20; + break; + case (BIT(2)): + rate->bw = RATE_INFO_BW_40; + break; + case (BIT(3)): + rate->bw = RATE_INFO_BW_80; + break; + case (BIT(3) | BIT(2)): + rate->bw = RATE_INFO_BW_160; + break; + } + + if (tx_htinfo & BIT(4)) + rate->flags |= RATE_INFO_FLAGS_SHORT_GI; + + if ((priv->tx_rate >> 4) == 1) + rate->nss = 2; + else + rate->nss = 1; + } + } else { + /* + * Bit 0 in tx_htinfo indicates that current Tx rate + * is 11n rate. Valid MCS index values for us are 0 to 15. + */ + if ((tx_htinfo & BIT(0)) && (priv->tx_rate < 16)) { + rate->mcs = priv->tx_rate; + rate->flags |= RATE_INFO_FLAGS_MCS; + rate->bw = RATE_INFO_BW_20; + if (tx_htinfo & BIT(1)) + rate->bw = RATE_INFO_BW_40; + if (tx_htinfo & BIT(2)) + rate->flags |= RATE_INFO_FLAGS_SHORT_GI; + } + } +} + +/* + * 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 = BIT(NL80211_STA_INFO_RX_BYTES) | BIT(NL80211_STA_INFO_TX_BYTES) | + BIT(NL80211_STA_INFO_RX_PACKETS) | BIT(NL80211_STA_INFO_TX_PACKETS) | + BIT(NL80211_STA_INFO_TX_BITRATE) | + BIT(NL80211_STA_INFO_SIGNAL) | BIT(NL80211_STA_INFO_SIGNAL_AVG); + + /* Get signal information from the firmware */ + if (mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO, + HostCmd_ACT_GEN_GET, 0, NULL, true)) { + 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(priv, HostCmd_CMD_802_11_SNMP_MIB, + HostCmd_ACT_GEN_GET, DTIM_PERIOD_I, + &priv->dtim_period, true); + + mwifiex_parse_htinfo(priv, priv->tx_htinfo, &sinfo->txrate); + + 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 |= BIT(NL80211_STA_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, + const 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); +} + +static int +mwifiex_cfg80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, + int idx, struct survey_info *survey) +{ + struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); + struct mwifiex_chan_stats *pchan_stats = priv->adapter->chan_stats; + enum ieee80211_band band; + + dev_dbg(priv->adapter->dev, "dump_survey idx=%d\n", idx); + + memset(survey, 0, sizeof(struct survey_info)); + + if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) && + priv->media_connected && idx == 0) { + u8 curr_bss_band = priv->curr_bss_params.band; + u32 chan = priv->curr_bss_params.bss_descriptor.channel; + + band = mwifiex_band_to_radio_type(curr_bss_band); + survey->channel = ieee80211_get_channel(wiphy, + ieee80211_channel_to_frequency(chan, band)); + + if (priv->bcn_nf_last) { + survey->filled = SURVEY_INFO_NOISE_DBM; + survey->noise = priv->bcn_nf_last; + } + return 0; + } + + if (idx >= priv->adapter->num_in_chan_stats) + return -ENOENT; + + if (!pchan_stats[idx].cca_scan_dur) + return 0; + + band = pchan_stats[idx].bandcfg; + survey->channel = ieee80211_get_channel(wiphy, + ieee80211_channel_to_frequency(pchan_stats[idx].chan_num, band)); + survey->filled = SURVEY_INFO_NOISE_DBM | + SURVEY_INFO_TIME | + SURVEY_INFO_TIME_BUSY; + survey->noise = pchan_stats[idx].noise; + survey->time = pchan_stats[idx].cca_scan_dur; + survey->time_busy = pchan_stats[idx].cca_busy_dur; + + return 0; +} + +/* 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, + WLAN_CIPHER_SUITE_AES_CMAC, +}; + +/* Supported mgmt frame types to be advertised to cfg80211 */ +static const struct ieee80211_txrx_stypes +mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = { + [NL80211_IFTYPE_STATION] = { + .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | + BIT(IEEE80211_STYPE_PROBE_RESP >> 4), + .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | + BIT(IEEE80211_STYPE_PROBE_REQ >> 4), + }, + [NL80211_IFTYPE_AP] = { + .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | + BIT(IEEE80211_STYPE_PROBE_RESP >> 4), + .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | + BIT(IEEE80211_STYPE_PROBE_REQ >> 4), + }, + [NL80211_IFTYPE_P2P_CLIENT] = { + .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | + BIT(IEEE80211_STYPE_PROBE_RESP >> 4), + .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | + BIT(IEEE80211_STYPE_PROBE_REQ >> 4), + }, + [NL80211_IFTYPE_P2P_GO] = { + .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | + BIT(IEEE80211_STYPE_PROBE_RESP >> 4), + .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | + BIT(IEEE80211_STYPE_PROBE_REQ >> 4), + }, +}; + +/* + * CFG802.11 operation handler for setting bit rates. + * + * Function configures data rates to firmware using bitrate mask + * provided by cfg80211. + */ +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); + u16 bitmap_rates[MAX_BITMAP_RATES_SIZE]; + enum ieee80211_band band; + struct mwifiex_adapter *adapter = priv->adapter; + + if (!priv->media_connected) { + dev_err(adapter->dev, + "Can not set Tx data rate in disconnected state\n"); + return -EINVAL; + } + + band = mwifiex_band_to_radio_type(priv->curr_bss_params.band); + + memset(bitmap_rates, 0, sizeof(bitmap_rates)); + + /* Fill HR/DSSS rates. */ + if (band == IEEE80211_BAND_2GHZ) + bitmap_rates[0] = mask->control[band].legacy & 0x000f; + + /* Fill OFDM rates */ + if (band == IEEE80211_BAND_2GHZ) + bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4; + else + bitmap_rates[1] = mask->control[band].legacy; + + /* Fill HT MCS rates */ + bitmap_rates[2] = mask->control[band].ht_mcs[0]; + if (adapter->hw_dev_mcs_support == HT_STREAM_2X2) + bitmap_rates[2] |= mask->control[band].ht_mcs[1] << 8; + + /* Fill VHT MCS rates */ + if (adapter->fw_api_ver == MWIFIEX_FW_V15) { + bitmap_rates[10] = mask->control[band].vht_mcs[0]; + if (adapter->hw_dev_mcs_support == HT_STREAM_2X2) + bitmap_rates[11] = mask->control[band].vht_mcs[1]; + } + + return mwifiex_send_cmd(priv, HostCmd_CMD_TX_RATE_CFG, + HostCmd_ACT_GEN_SET, 0, bitmap_rates, true); +} + +/* + * 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(priv, + HostCmd_CMD_802_11_SUBSCRIBE_EVENT, + 0, 0, &subsc_evt, true); + } else { + subsc_evt.action = HostCmd_ACT_BITWISE_CLR; + return mwifiex_send_cmd(priv, + HostCmd_CMD_802_11_SUBSCRIBE_EVENT, + 0, 0, &subsc_evt, true); + } + + 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 (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_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; +} + +/* cfg80211 operation handler for del_station. + * Function deauthenticates station which value is provided in mac parameter. + * If mac is NULL/broadcast, all stations in associated station list are + * deauthenticated. If bss is not started or there are no stations in + * associated stations list, no action is taken. + */ +static int +mwifiex_cfg80211_del_station(struct wiphy *wiphy, struct net_device *dev, + struct station_del_parameters *params) +{ + struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); + struct mwifiex_sta_node *sta_node; + u8 deauth_mac[ETH_ALEN]; + unsigned long flags; + + if (list_empty(&priv->sta_list) || !priv->bss_started) + return 0; + + if (!params->mac || is_broadcast_ether_addr(params->mac)) + return 0; + + wiphy_dbg(wiphy, "%s: mac address %pM\n", __func__, params->mac); + + eth_zero_addr(deauth_mac); + + spin_lock_irqsave(&priv->sta_list_spinlock, flags); + sta_node = mwifiex_get_sta_entry(priv, params->mac); + if (sta_node) + ether_addr_copy(deauth_mac, params->mac); + spin_unlock_irqrestore(&priv->sta_list_spinlock, flags); + + if (is_valid_ether_addr(deauth_mac)) { + if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_STA_DEAUTH, + HostCmd_ACT_GEN_SET, 0, + deauth_mac, true)) + return -1; + } + + 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; + } + } else { + struct ieee80211_sta_ht_cap *ht_info; + int rx_mcs_supp; + enum ieee80211_band band; + + if ((tx_ant == 0x1 && rx_ant == 0x1)) { + adapter->user_dev_mcs_support = HT_STREAM_1X1; + if (adapter->is_hw_11ac_capable) + adapter->usr_dot_11ac_mcs_support = + MWIFIEX_11AC_MCS_MAP_1X1; + } else { + adapter->user_dev_mcs_support = HT_STREAM_2X2; + if (adapter->is_hw_11ac_capable) + adapter->usr_dot_11ac_mcs_support = + MWIFIEX_11AC_MCS_MAP_2X2; + } + + for (band = 0; band < IEEE80211_NUM_BANDS; band++) { + if (!adapter->wiphy->bands[band]) + continue; + + ht_info = &adapter->wiphy->bands[band]->ht_cap; + rx_mcs_supp = + GET_RXMCSSUPP(adapter->user_dev_mcs_support); + memset(&ht_info->mcs, 0, adapter->number_of_antenna); + memset(&ht_info->mcs, 0xff, rx_mcs_supp); + } + } + + ant_cfg.tx_ant = tx_ant; + ant_cfg.rx_ant = rx_ant; + + return mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA, + HostCmd_ACT_GEN_SET, 0, &ant_cfg, true); +} + +/* 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); + + mwifiex_abort_cac(priv); + + if (mwifiex_del_mgmt_ies(priv)) + wiphy_err(wiphy, "Failed to delete mgmt IEs!\n"); + + priv->ap_11n_enabled = 0; + memset(&priv->bss_cfg, 0, sizeof(priv->bss_cfg)); + + if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP, + HostCmd_ACT_GEN_SET, 0, NULL, true)) { + 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 (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) + 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; + } + if (params->inactivity_timeout > 0) { + /* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */ + bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout; + bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout; + } + + 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; + } + + mwifiex_uap_set_channel(bss_cfg, params->chandef); + mwifiex_set_uap_rates(bss_cfg, params); + + 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 (priv->adapter->is_hw_11ac_capable) { + mwifiex_set_vht_params(priv, bss_cfg, params); + mwifiex_set_vht_width(priv, params->chandef.width, + priv->ap_11ac_enabled); + } + + if (priv->ap_11ac_enabled) + mwifiex_set_11ac_ba_params(priv); + else + mwifiex_set_ba_params(priv); + + mwifiex_set_wmm_params(priv, bss_cfg, params); + + if (mwifiex_is_11h_active(priv) && + !cfg80211_chandef_dfs_required(wiphy, ¶ms->chandef, + priv->bss_mode)) { + dev_dbg(priv->adapter->dev, "Disable 11h extensions in FW\n"); + if (mwifiex_11h_activate(priv, false)) { + dev_err(priv->adapter->dev, + "Failed to disable 11h extensions!!"); + return -1; + } + priv->state_11h.is_11h_active = true; + } + + if (mwifiex_config_start_uap(priv, bss_cfg)) { + wiphy_err(wiphy, "Failed to start AP\n"); + kfree(bss_cfg); + return -1; + } + + if (mwifiex_set_mgmt_ies(priv, ¶ms->beacon)) + return -1; + + memcpy(&priv->bss_cfg, bss_cfg, sizeof(priv->bss_cfg)); + kfree(bss_cfg); + 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); + + eth_zero_addr(priv->cfg_bssid); + priv->hs2_enabled = false; + + 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, + CFG80211_BSS_FTYPE_UNKNOWN, + bss_info.bssid, 0, WLAN_CAPABILITY_IBSS, + 0, ie_buf, ie_len, 0, GFP_KERNEL); + cfg80211_put_bss(priv->wdev.wiphy, 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, + const u8 *ssid, const 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; + } + + /* 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, 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, NULL, 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, + IEEE80211_BSS_TYPE_IBSS, + IEEE80211_PRIVACY_ANY); + else + bss = cfg80211_get_bss(priv->wdev.wiphy, channel, + bssid, ssid, ssid_len, + IEEE80211_BSS_TYPE_ESS, + IEEE80211_PRIVACY_ANY); + + 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; + } + } + + ret = mwifiex_bss_start(priv, bss, &req_ssid); + if (ret) + return ret; + + 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); + struct mwifiex_adapter *adapter = priv->adapter; + int ret; + + if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) { + wiphy_err(wiphy, + "%s: reject infra assoc request in non-STA role\n", + dev->name); + return -EINVAL; + } + + if (priv->wdev.current_bss) { + wiphy_warn(wiphy, "%s: already connected\n", dev->name); + return -EALREADY; + } + + if (adapter->surprise_removed || adapter->is_cmd_timedout) { + wiphy_err(wiphy, + "%s: Ignore connection. Card removed or FW in bad state\n", + dev->name); + return -EFAULT; + } + + 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); + 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); + if (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) && + priv->adapter->auto_tdls && + priv->bss_type == MWIFIEX_BSS_TYPE_STA) + mwifiex_setup_auto_tdls_timer(priv); + } else { + dev_dbg(priv->adapter->dev, + "info: association to bssid %pM failed\n", + priv->cfg_bssid); + eth_zero_addr(priv->cfg_bssid); + + if (ret > 0) + cfg80211_connect_result(priv->netdev, priv->cfg_bssid, + NULL, 0, NULL, 0, ret, + GFP_KERNEL); + else + cfg80211_connect_result(priv->netdev, priv->cfg_bssid, + NULL, 0, NULL, 0, + WLAN_STATUS_UNSPECIFIED_FAILURE, + GFP_KERNEL); + } + + return 0; +} + +/* + * This function sets following parameters for ibss network. + * - channel + * - start band + * - 11n flag + * - secondary channel offset + */ +static int mwifiex_set_ibss_params(struct mwifiex_private *priv, + struct cfg80211_ibss_params *params) +{ + struct wiphy *wiphy = priv->wdev.wiphy; + struct mwifiex_adapter *adapter = priv->adapter; + int index = 0, i; + u8 config_bands = 0; + + if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) { + if (!params->basic_rates) { + config_bands = BAND_B | BAND_G; + } else { + for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) { + /* + * Rates below 6 Mbps in the table are CCK + * rates; 802.11b and from 6 they are OFDM; + * 802.11G + */ + if (mwifiex_rates[i].bitrate == 60) { + index = 1 << i; + break; + } + } + + if (params->basic_rates < index) { + config_bands = BAND_B; + } else { + config_bands = BAND_G; + if (params->basic_rates % index) + config_bands |= BAND_B; + } + } + + if (cfg80211_get_chandef_type(¶ms->chandef) != + NL80211_CHAN_NO_HT) + config_bands |= BAND_G | BAND_GN; + } else { + if (cfg80211_get_chandef_type(¶ms->chandef) == + NL80211_CHAN_NO_HT) + config_bands = BAND_A; + else + config_bands = BAND_AN | BAND_A; + } + + if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) { + adapter->config_bands = config_bands; + adapter->adhoc_start_band = config_bands; + + if ((config_bands & BAND_GN) || (config_bands & BAND_AN)) + adapter->adhoc_11n_enabled = true; + else + adapter->adhoc_11n_enabled = false; + } + + adapter->sec_chan_offset = + mwifiex_chan_type_to_sec_chan_offset( + cfg80211_get_chandef_type(¶ms->chandef)); + priv->adhoc_channel = ieee80211_frequency_to_channel( + params->chandef.chan->center_freq); + + wiphy_dbg(wiphy, "info: set ibss band %d, chan %d, chan offset %d\n", + config_bands, priv->adhoc_channel, adapter->sec_chan_offset); + + return 0; +} + +/* + * 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); + + mwifiex_set_ibss_params(priv, params); + + ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid, + params->bssid, priv->bss_mode, + params->chandef.chan, NULL, + params->privacy); +done: + if (!ret) { + cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid, + params->chandef.chan, 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; + + eth_zero_addr(priv->cfg_bssid); + + 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, offset, ret; + struct ieee80211_channel *chan; + struct ieee_types_header *ie; + struct mwifiex_user_scan_cfg *user_scan_cfg; + + wiphy_dbg(wiphy, "info: received scan request on %s\n", dev->name); + + /* Block scan request if scan operation or scan cleanup when interface + * is disabled is in process + */ + if (priv->scan_request || priv->scan_aborting) { + dev_err(priv->adapter->dev, "cmd: Scan already in process..\n"); + return -EBUSY; + } + + user_scan_cfg = kzalloc(sizeof(*user_scan_cfg), GFP_KERNEL); + if (!user_scan_cfg) + return -ENOMEM; + + priv->scan_request = request; + + user_scan_cfg->num_ssids = request->n_ssids; + user_scan_cfg->ssid_list = request->ssids; + + if (request->ie && request->ie_len) { + offset = 0; + for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) { + if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR) + continue; + priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN; + ie = (struct ieee_types_header *)(request->ie + offset); + memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len); + offset += sizeof(*ie) + ie->len; + + if (offset >= request->ie_len) + break; + } + } + + for (i = 0; i < min_t(u32, request->n_channels, + MWIFIEX_USER_SCAN_CHAN_MAX); i++) { + chan = request->channels[i]; + user_scan_cfg->chan_list[i].chan_number = chan->hw_value; + user_scan_cfg->chan_list[i].radio_type = chan->band; + + if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids) + user_scan_cfg->chan_list[i].scan_type = + MWIFIEX_SCAN_TYPE_PASSIVE; + else + user_scan_cfg->chan_list[i].scan_type = + MWIFIEX_SCAN_TYPE_ACTIVE; + + user_scan_cfg->chan_list[i].scan_time = 0; + } + + if (priv->adapter->scan_chan_gap_enabled && + mwifiex_is_any_intf_active(priv)) + user_scan_cfg->scan_chan_gap = + priv->adapter->scan_chan_gap_time; + + ret = mwifiex_scan_networks(priv, user_scan_cfg); + kfree(user_scan_cfg); + if (ret) { + dev_err(priv->adapter->dev, "scan failed: %d\n", ret); + priv->scan_aborting = false; + priv->scan_request = NULL; + return ret; + } + + 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; +} + +static void mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap *vht_info, + struct mwifiex_private *priv) +{ + struct mwifiex_adapter *adapter = priv->adapter; + + vht_info->vht_supported = true; + + vht_info->cap = adapter->hw_dot_11ac_dev_cap; + /* Update MCS support for VHT */ + vht_info->vht_mcs.rx_mcs_map = cpu_to_le16( + adapter->hw_dot_11ac_mcs_support & 0xFFFF); + vht_info->vht_mcs.rx_highest = 0; + vht_info->vht_mcs.tx_mcs_map = cpu_to_le16( + adapter->hw_dot_11ac_mcs_support >> 16); + vht_info->vht_mcs.tx_highest = 0; +} + +/* + * 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 (adapter->user_dev_mcs_support == HT_STREAM_2X2) + ht_info->cap |= 3 << IEEE80211_HT_CAP_RX_STBC_SHIFT; + else + ht_info->cap |= 1 << 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; + + if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap)) + ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD; + else + ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD; + + if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap)) + ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT; + else + ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT; + + if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap)) + ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING; + else + ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING; + + ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU; + ht_info->cap |= IEEE80211_HT_CAP_SM_PS; + + rx_mcs_supp = GET_RXMCSSUPP(adapter->user_dev_mcs_support); + /* Set MCS for 1x1/2x2 */ + 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 and name assign type + */ +struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy, + const char *name, + unsigned char name_assign_type, + 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; + + if (!adapter) + return ERR_PTR(-EFAULT); + + switch (type) { + case NL80211_IFTYPE_UNSPECIFIED: + case NL80211_IFTYPE_STATION: + case NL80211_IFTYPE_ADHOC: + if (adapter->curr_iface_comb.sta_intf == + adapter->iface_limit.sta_intf) { + wiphy_err(wiphy, + "cannot create multiple sta/adhoc ifaces\n"); + return ERR_PTR(-EINVAL); + } + + priv = mwifiex_get_unused_priv(adapter); + if (!priv) { + wiphy_err(wiphy, + "could not get free private struct\n"); + return ERR_PTR(-EFAULT); + } + + priv->wdev.wiphy = wiphy; + priv->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 = 0; + priv->bss_role = MWIFIEX_BSS_ROLE_STA; + priv->bss_num = 0; + + break; + case NL80211_IFTYPE_AP: + if (adapter->curr_iface_comb.uap_intf == + adapter->iface_limit.uap_intf) { + wiphy_err(wiphy, + "cannot create multiple AP ifaces\n"); + return ERR_PTR(-EINVAL); + } + + priv = mwifiex_get_unused_priv(adapter); + if (!priv) { + wiphy_err(wiphy, + "could not get free private struct\n"); + return ERR_PTR(-EFAULT); + } + + priv->wdev.wiphy = wiphy; + priv->wdev.iftype = NL80211_IFTYPE_AP; + + priv->bss_type = MWIFIEX_BSS_TYPE_UAP; + priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II; + priv->bss_priority = 0; + priv->bss_role = MWIFIEX_BSS_ROLE_UAP; + priv->bss_started = 0; + priv->bss_num = 0; + priv->bss_mode = type; + + break; + case NL80211_IFTYPE_P2P_CLIENT: + if (adapter->curr_iface_comb.p2p_intf == + adapter->iface_limit.p2p_intf) { + wiphy_err(wiphy, + "cannot create multiple P2P ifaces\n"); + return ERR_PTR(-EINVAL); + } + + priv = mwifiex_get_unused_priv(adapter); + if (!priv) { + wiphy_err(wiphy, + "could not get free private struct\n"); + return ERR_PTR(-EFAULT); + } + + priv->wdev.wiphy = wiphy; + /* At start-up, wpa_supplicant tries to change the interface + * to NL80211_IFTYPE_STATION if it is not managed mode. + */ + priv->wdev.iftype = NL80211_IFTYPE_P2P_CLIENT; + priv->bss_mode = NL80211_IFTYPE_P2P_CLIENT; + + /* Setting bss_type to P2P tells firmware that this interface + * is receiving P2P peers found during find phase and doing + * action frame handshake. + */ + priv->bss_type = MWIFIEX_BSS_TYPE_P2P; + + priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II; + priv->bss_priority = MWIFIEX_BSS_ROLE_STA; + priv->bss_role = MWIFIEX_BSS_ROLE_STA; + priv->bss_started = 0; + priv->bss_num = 0; + + if (mwifiex_cfg80211_init_p2p_client(priv)) { + memset(&priv->wdev, 0, sizeof(priv->wdev)); + priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED; + return ERR_PTR(-EFAULT); + } + + break; + default: + wiphy_err(wiphy, "type not supported\n"); + return ERR_PTR(-EINVAL); + } + + dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name, + name_assign_type, ether_setup, + IEEE80211_NUM_ACS, 1); + if (!dev) { + wiphy_err(wiphy, "no memory available for netdevice\n"); + memset(&priv->wdev, 0, sizeof(priv->wdev)); + priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED; + 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->is_hw_11ac_capable) + mwifiex_setup_vht_caps( + &wiphy->bands[IEEE80211_BAND_2GHZ]->vht_cap, priv); + + if (adapter->config_bands & BAND_A) + mwifiex_setup_ht_caps( + &wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap, priv); + + if ((adapter->config_bands & BAND_A) && adapter->is_hw_11ac_capable) + mwifiex_setup_vht_caps( + &wiphy->bands[IEEE80211_BAND_5GHZ]->vht_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); + 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; + dev->ethtool_ops = &mwifiex_ethtool_ops; + + 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; + priv->netdev = NULL; + memset(&priv->wdev, 0, sizeof(priv->wdev)); + priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED; + return ERR_PTR(-EFAULT); + } + + priv->dfs_cac_workqueue = alloc_workqueue("MWIFIEX_DFS_CAC%s", + WQ_HIGHPRI | + WQ_MEM_RECLAIM | + WQ_UNBOUND, 1, name); + if (!priv->dfs_cac_workqueue) { + wiphy_err(wiphy, "cannot register virtual network device\n"); + free_netdev(dev); + priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED; + priv->netdev = NULL; + memset(&priv->wdev, 0, sizeof(priv->wdev)); + priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED; + return ERR_PTR(-ENOMEM); + } + + INIT_DELAYED_WORK(&priv->dfs_cac_work, mwifiex_dfs_cac_work_queue); + + priv->dfs_chan_sw_workqueue = alloc_workqueue("MWIFIEX_DFS_CHSW%s", + WQ_HIGHPRI | WQ_UNBOUND | + WQ_MEM_RECLAIM, 1, name); + if (!priv->dfs_chan_sw_workqueue) { + wiphy_err(wiphy, "cannot register virtual network device\n"); + free_netdev(dev); + priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED; + priv->netdev = NULL; + memset(&priv->wdev, 0, sizeof(priv->wdev)); + priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED; + return ERR_PTR(-ENOMEM); + } + + INIT_DELAYED_WORK(&priv->dfs_chan_sw_work, + mwifiex_dfs_chan_sw_work_queue); + + sema_init(&priv->async_sem, 1); + + dev_dbg(adapter->dev, "info: %s: Marvell 802.11 Adapter\n", dev->name); + +#ifdef CONFIG_DEBUG_FS + mwifiex_dev_debugfs_init(priv); +#endif + + switch (type) { + case NL80211_IFTYPE_UNSPECIFIED: + case NL80211_IFTYPE_STATION: + case NL80211_IFTYPE_ADHOC: + adapter->curr_iface_comb.sta_intf++; + break; + case NL80211_IFTYPE_AP: + adapter->curr_iface_comb.uap_intf++; + break; + case NL80211_IFTYPE_P2P_CLIENT: + adapter->curr_iface_comb.p2p_intf++; + break; + default: + wiphy_err(wiphy, "type not supported\n"); + return ERR_PTR(-EINVAL); + } + + return &priv->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); + struct mwifiex_adapter *adapter = priv->adapter; + +#ifdef CONFIG_DEBUG_FS + mwifiex_dev_debugfs_remove(priv); +#endif + + mwifiex_stop_net_dev_queue(priv->netdev, adapter); + + if (netif_carrier_ok(priv->netdev)) + netif_carrier_off(priv->netdev); + + if (wdev->netdev->reg_state == NETREG_REGISTERED) + unregister_netdevice(wdev->netdev); + + if (priv->dfs_cac_workqueue) { + flush_workqueue(priv->dfs_cac_workqueue); + destroy_workqueue(priv->dfs_cac_workqueue); + priv->dfs_cac_workqueue = NULL; + } + + if (priv->dfs_chan_sw_workqueue) { + flush_workqueue(priv->dfs_chan_sw_workqueue); + destroy_workqueue(priv->dfs_chan_sw_workqueue); + priv->dfs_chan_sw_workqueue = NULL; + } + /* Clear the priv in adapter */ + priv->netdev->ieee80211_ptr = NULL; + priv->netdev = NULL; + priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED; + + priv->media_connected = false; + + switch (priv->bss_mode) { + case NL80211_IFTYPE_UNSPECIFIED: + case NL80211_IFTYPE_STATION: + case NL80211_IFTYPE_ADHOC: + adapter->curr_iface_comb.sta_intf++; + break; + case NL80211_IFTYPE_AP: + adapter->curr_iface_comb.uap_intf++; + break; + case NL80211_IFTYPE_P2P_CLIENT: + case NL80211_IFTYPE_P2P_GO: + adapter->curr_iface_comb.p2p_intf++; + break; + default: + dev_err(adapter->dev, "del_virtual_intf: type not supported\n"); + break; + } + + priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED; + + if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA || + GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) + kfree(priv->hist_data); + + return 0; +} +EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf); + +static bool +mwifiex_is_pattern_supported(struct cfg80211_pkt_pattern *pat, s8 *byte_seq, + u8 max_byte_seq) +{ + int j, k, valid_byte_cnt = 0; + bool dont_care_byte = false; + + for (j = 0; j < DIV_ROUND_UP(pat->pattern_len, 8); j++) { + for (k = 0; k < 8; k++) { + if (pat->mask[j] & 1 << k) { + memcpy(byte_seq + valid_byte_cnt, + &pat->pattern[j * 8 + k], 1); + valid_byte_cnt++; + if (dont_care_byte) + return false; + } else { + if (valid_byte_cnt) + dont_care_byte = true; + } + + if (valid_byte_cnt > max_byte_seq) + return false; + } + } + + byte_seq[max_byte_seq] = valid_byte_cnt; + + return true; +} + +#ifdef CONFIG_PM +static void mwifiex_set_auto_arp_mef_entry(struct mwifiex_private *priv, + struct mwifiex_mef_entry *mef_entry) +{ + int i, filt_num = 0, num_ipv4 = 0; + struct in_device *in_dev; + struct in_ifaddr *ifa; + __be32 ips[MWIFIEX_MAX_SUPPORTED_IPADDR]; + struct mwifiex_adapter *adapter = priv->adapter; + + mef_entry->mode = MEF_MODE_HOST_SLEEP; + mef_entry->action = MEF_ACTION_AUTO_ARP; + + /* Enable ARP offload feature */ + memset(ips, 0, sizeof(ips)); + for (i = 0; i < MWIFIEX_MAX_BSS_NUM; i++) { + if (adapter->priv[i]->netdev) { + in_dev = __in_dev_get_rtnl(adapter->priv[i]->netdev); + if (!in_dev) + continue; + ifa = in_dev->ifa_list; + if (!ifa || !ifa->ifa_local) + continue; + ips[i] = ifa->ifa_local; + num_ipv4++; + } + } + + for (i = 0; i < num_ipv4; i++) { + if (!ips[i]) + continue; + mef_entry->filter[filt_num].repeat = 1; + memcpy(mef_entry->filter[filt_num].byte_seq, + (u8 *)&ips[i], sizeof(ips[i])); + mef_entry->filter[filt_num]. + byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = + sizeof(ips[i]); + mef_entry->filter[filt_num].offset = 46; + mef_entry->filter[filt_num].filt_type = TYPE_EQ; + if (filt_num) { + mef_entry->filter[filt_num].filt_action = + TYPE_OR; + } + filt_num++; + } + + mef_entry->filter[filt_num].repeat = 1; + mef_entry->filter[filt_num].byte_seq[0] = 0x08; + mef_entry->filter[filt_num].byte_seq[1] = 0x06; + mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 2; + mef_entry->filter[filt_num].offset = 20; + mef_entry->filter[filt_num].filt_type = TYPE_EQ; + mef_entry->filter[filt_num].filt_action = TYPE_AND; +} + +static int mwifiex_set_wowlan_mef_entry(struct mwifiex_private *priv, + struct mwifiex_ds_mef_cfg *mef_cfg, + struct mwifiex_mef_entry *mef_entry, + struct cfg80211_wowlan *wowlan) +{ + int i, filt_num = 0, ret = 0; + bool first_pat = true; + u8 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ + 1]; + const u8 ipv4_mc_mac[] = {0x33, 0x33}; + const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e}; + + mef_entry->mode = MEF_MODE_HOST_SLEEP; + mef_entry->action = MEF_ACTION_ALLOW_AND_WAKEUP_HOST; + + for (i = 0; i < wowlan->n_patterns; i++) { + memset(byte_seq, 0, sizeof(byte_seq)); + if (!mwifiex_is_pattern_supported(&wowlan->patterns[i], + byte_seq, + MWIFIEX_MEF_MAX_BYTESEQ)) { + dev_err(priv->adapter->dev, "Pattern not supported\n"); + kfree(mef_entry); + return -EOPNOTSUPP; + } + + if (!wowlan->patterns[i].pkt_offset) { + if (!(byte_seq[0] & 0x01) && + (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 1)) { + mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST; + continue; + } else if (is_broadcast_ether_addr(byte_seq)) { + mef_cfg->criteria |= MWIFIEX_CRITERIA_BROADCAST; + continue; + } else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) && + (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 2)) || + (!memcmp(byte_seq, ipv6_mc_mac, 3) && + (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 3))) { + mef_cfg->criteria |= MWIFIEX_CRITERIA_MULTICAST; + continue; + } + } + mef_entry->filter[filt_num].repeat = 1; + mef_entry->filter[filt_num].offset = + wowlan->patterns[i].pkt_offset; + memcpy(mef_entry->filter[filt_num].byte_seq, byte_seq, + sizeof(byte_seq)); + mef_entry->filter[filt_num].filt_type = TYPE_EQ; + + if (first_pat) + first_pat = false; + else + mef_entry->filter[filt_num].filt_action = TYPE_AND; + + filt_num++; + } + + if (wowlan->magic_pkt) { + mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST; + mef_entry->filter[filt_num].repeat = 16; + memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr, + ETH_ALEN); + mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = + ETH_ALEN; + mef_entry->filter[filt_num].offset = 28; + mef_entry->filter[filt_num].filt_type = TYPE_EQ; + if (filt_num) + mef_entry->filter[filt_num].filt_action = TYPE_OR; + + filt_num++; + mef_entry->filter[filt_num].repeat = 16; + memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr, + ETH_ALEN); + mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = + ETH_ALEN; + mef_entry->filter[filt_num].offset = 56; + mef_entry->filter[filt_num].filt_type = TYPE_EQ; + mef_entry->filter[filt_num].filt_action = TYPE_OR; + } + return ret; +} + +static int mwifiex_set_mef_filter(struct mwifiex_private *priv, + struct cfg80211_wowlan *wowlan) +{ + int ret = 0, num_entries = 1; + struct mwifiex_ds_mef_cfg mef_cfg; + struct mwifiex_mef_entry *mef_entry; + + if (wowlan->n_patterns || wowlan->magic_pkt) + num_entries++; + + mef_entry = kcalloc(num_entries, sizeof(*mef_entry), GFP_KERNEL); + if (!mef_entry) + return -ENOMEM; + + memset(&mef_cfg, 0, sizeof(mef_cfg)); + mef_cfg.criteria |= MWIFIEX_CRITERIA_BROADCAST | + MWIFIEX_CRITERIA_UNICAST; + mef_cfg.num_entries = num_entries; + mef_cfg.mef_entry = mef_entry; + + mwifiex_set_auto_arp_mef_entry(priv, &mef_entry[0]); + + if (wowlan->n_patterns || wowlan->magic_pkt) + ret = mwifiex_set_wowlan_mef_entry(priv, &mef_cfg, + &mef_entry[1], wowlan); + + if (!mef_cfg.criteria) + mef_cfg.criteria = MWIFIEX_CRITERIA_BROADCAST | + MWIFIEX_CRITERIA_UNICAST | + MWIFIEX_CRITERIA_MULTICAST; + + ret = mwifiex_send_cmd(priv, HostCmd_CMD_MEF_CFG, + HostCmd_ACT_GEN_SET, 0, + &mef_cfg, true); + kfree(mef_entry); + return ret; +} + +static int mwifiex_cfg80211_suspend(struct wiphy *wiphy, + struct cfg80211_wowlan *wowlan) +{ + struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); + struct mwifiex_ds_hs_cfg hs_cfg; + int i, ret = 0; + struct mwifiex_private *priv; + + for (i = 0; i < adapter->priv_num; i++) { + priv = adapter->priv[i]; + mwifiex_abort_cac(priv); + } + + mwifiex_cancel_all_pending_cmd(adapter); + + if (!wowlan) { + dev_warn(adapter->dev, "None of the WOWLAN triggers enabled\n"); + return 0; + } + + priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA); + + if (!priv->media_connected) { + dev_warn(adapter->dev, + "Can not configure WOWLAN in disconnected state\n"); + return 0; + } + + ret = mwifiex_set_mef_filter(priv, wowlan); + if (ret) { + dev_err(adapter->dev, "Failed to set MEF filter\n"); + return ret; + } + + if (wowlan->disconnect) { + memset(&hs_cfg, 0, sizeof(hs_cfg)); + hs_cfg.is_invoke_hostcmd = false; + hs_cfg.conditions = HS_CFG_COND_MAC_EVENT; + hs_cfg.gpio = HS_CFG_GPIO_DEF; + hs_cfg.gap = HS_CFG_GAP_DEF; + ret = mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_SET, + MWIFIEX_SYNC_CMD, &hs_cfg); + if (ret) { + dev_err(adapter->dev, "Failed to set HS params\n"); + return ret; + } + } + + return ret; +} + +static int mwifiex_cfg80211_resume(struct wiphy *wiphy) +{ + return 0; +} + +static void mwifiex_cfg80211_set_wakeup(struct wiphy *wiphy, + bool enabled) +{ + struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); + + device_set_wakeup_enable(adapter->dev, enabled); +} +#endif + +static int mwifiex_get_coalesce_pkt_type(u8 *byte_seq) +{ + const u8 ipv4_mc_mac[] = {0x33, 0x33}; + const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e}; + const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff}; + + if ((byte_seq[0] & 0x01) && + (byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 1)) + return PACKET_TYPE_UNICAST; + else if (!memcmp(byte_seq, bc_mac, 4)) + return PACKET_TYPE_BROADCAST; + else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) && + byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 2) || + (!memcmp(byte_seq, ipv6_mc_mac, 3) && + byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 3)) + return PACKET_TYPE_MULTICAST; + + return 0; +} + +static int +mwifiex_fill_coalesce_rule_info(struct mwifiex_private *priv, + struct cfg80211_coalesce_rules *crule, + struct mwifiex_coalesce_rule *mrule) +{ + u8 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ + 1]; + struct filt_field_param *param; + int i; + + mrule->max_coalescing_delay = crule->delay; + + param = mrule->params; + + for (i = 0; i < crule->n_patterns; i++) { + memset(byte_seq, 0, sizeof(byte_seq)); + if (!mwifiex_is_pattern_supported(&crule->patterns[i], + byte_seq, + MWIFIEX_COALESCE_MAX_BYTESEQ)) { + dev_err(priv->adapter->dev, "Pattern not supported\n"); + return -EOPNOTSUPP; + } + + if (!crule->patterns[i].pkt_offset) { + u8 pkt_type; + + pkt_type = mwifiex_get_coalesce_pkt_type(byte_seq); + if (pkt_type && mrule->pkt_type) { + dev_err(priv->adapter->dev, + "Multiple packet types not allowed\n"); + return -EOPNOTSUPP; + } else if (pkt_type) { + mrule->pkt_type = pkt_type; + continue; + } + } + + if (crule->condition == NL80211_COALESCE_CONDITION_MATCH) + param->operation = RECV_FILTER_MATCH_TYPE_EQ; + else + param->operation = RECV_FILTER_MATCH_TYPE_NE; + + param->operand_len = byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ]; + memcpy(param->operand_byte_stream, byte_seq, + param->operand_len); + param->offset = crule->patterns[i].pkt_offset; + param++; + + mrule->num_of_fields++; + } + + if (!mrule->pkt_type) { + dev_err(priv->adapter->dev, + "Packet type can not be determined\n"); + return -EOPNOTSUPP; + } + + return 0; +} + +static int mwifiex_cfg80211_set_coalesce(struct wiphy *wiphy, + struct cfg80211_coalesce *coalesce) +{ + struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); + int i, ret; + struct mwifiex_ds_coalesce_cfg coalesce_cfg; + struct mwifiex_private *priv = + mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA); + + memset(&coalesce_cfg, 0, sizeof(coalesce_cfg)); + if (!coalesce) { + dev_dbg(adapter->dev, + "Disable coalesce and reset all previous rules\n"); + return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG, + HostCmd_ACT_GEN_SET, 0, + &coalesce_cfg, true); + } + + coalesce_cfg.num_of_rules = coalesce->n_rules; + for (i = 0; i < coalesce->n_rules; i++) { + ret = mwifiex_fill_coalesce_rule_info(priv, &coalesce->rules[i], + &coalesce_cfg.rule[i]); + if (ret) { + dev_err(priv->adapter->dev, + "Recheck the patterns provided for rule %d\n", + i + 1); + return ret; + } + } + + return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG, + HostCmd_ACT_GEN_SET, 0, &coalesce_cfg, true); +} + +/* cfg80211 ops handler for tdls_mgmt. + * Function prepares TDLS action frame packets and forwards them to FW + */ +static int +mwifiex_cfg80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev, + const u8 *peer, u8 action_code, u8 dialog_token, + u16 status_code, u32 peer_capability, + bool initiator, const u8 *extra_ies, + size_t extra_ies_len) +{ + struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); + int ret; + + if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS)) + return -ENOTSUPP; + + /* make sure we are in station mode and connected */ + if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected)) + return -ENOTSUPP; + + switch (action_code) { + case WLAN_TDLS_SETUP_REQUEST: + dev_dbg(priv->adapter->dev, + "Send TDLS Setup Request to %pM status_code=%d\n", peer, + status_code); + mwifiex_add_auto_tdls_peer(priv, peer); + ret = mwifiex_send_tdls_data_frame(priv, peer, action_code, + dialog_token, status_code, + extra_ies, extra_ies_len); + break; + case WLAN_TDLS_SETUP_RESPONSE: + mwifiex_add_auto_tdls_peer(priv, peer); + dev_dbg(priv->adapter->dev, + "Send TDLS Setup Response to %pM status_code=%d\n", + peer, status_code); + ret = mwifiex_send_tdls_data_frame(priv, peer, action_code, + dialog_token, status_code, + extra_ies, extra_ies_len); + break; + case WLAN_TDLS_SETUP_CONFIRM: + dev_dbg(priv->adapter->dev, + "Send TDLS Confirm to %pM status_code=%d\n", peer, + status_code); + ret = mwifiex_send_tdls_data_frame(priv, peer, action_code, + dialog_token, status_code, + extra_ies, extra_ies_len); + break; + case WLAN_TDLS_TEARDOWN: + dev_dbg(priv->adapter->dev, "Send TDLS Tear down to %pM\n", + peer); + ret = mwifiex_send_tdls_data_frame(priv, peer, action_code, + dialog_token, status_code, + extra_ies, extra_ies_len); + break; + case WLAN_TDLS_DISCOVERY_REQUEST: + dev_dbg(priv->adapter->dev, + "Send TDLS Discovery Request to %pM\n", peer); + ret = mwifiex_send_tdls_data_frame(priv, peer, action_code, + dialog_token, status_code, + extra_ies, extra_ies_len); + break; + case WLAN_PUB_ACTION_TDLS_DISCOVER_RES: + dev_dbg(priv->adapter->dev, + "Send TDLS Discovery Response to %pM\n", peer); + ret = mwifiex_send_tdls_action_frame(priv, peer, action_code, + dialog_token, status_code, + extra_ies, extra_ies_len); + break; + default: + dev_warn(priv->adapter->dev, + "Unknown TDLS mgmt/action frame %pM\n", peer); + ret = -EINVAL; + break; + } + + return ret; +} + +static int +mwifiex_cfg80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev, + const u8 *peer, enum nl80211_tdls_operation action) +{ + struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); + + if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) || + !(wiphy->flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP)) + return -ENOTSUPP; + + /* make sure we are in station mode and connected */ + if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected)) + return -ENOTSUPP; + + dev_dbg(priv->adapter->dev, + "TDLS peer=%pM, oper=%d\n", peer, action); + + switch (action) { + case NL80211_TDLS_ENABLE_LINK: + action = MWIFIEX_TDLS_ENABLE_LINK; + break; + case NL80211_TDLS_DISABLE_LINK: + action = MWIFIEX_TDLS_DISABLE_LINK; + break; + case NL80211_TDLS_TEARDOWN: + /* shouldn't happen!*/ + dev_warn(priv->adapter->dev, + "tdls_oper: teardown from driver not supported\n"); + return -EINVAL; + case NL80211_TDLS_SETUP: + /* shouldn't happen!*/ + dev_warn(priv->adapter->dev, + "tdls_oper: setup from driver not supported\n"); + return -EINVAL; + case NL80211_TDLS_DISCOVERY_REQ: + /* shouldn't happen!*/ + dev_warn(priv->adapter->dev, + "tdls_oper: discovery from driver not supported\n"); + return -EINVAL; + default: + dev_err(priv->adapter->dev, + "tdls_oper: operation not supported\n"); + return -ENOTSUPP; + } + + return mwifiex_tdls_oper(priv, peer, action); +} + +static int +mwifiex_cfg80211_add_station(struct wiphy *wiphy, struct net_device *dev, + const u8 *mac, struct station_parameters *params) +{ + struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); + + if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) + return -ENOTSUPP; + + /* make sure we are in station mode and connected */ + if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected) + return -ENOTSUPP; + + return mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CREATE_LINK); +} + +static int +mwifiex_cfg80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, + struct cfg80211_csa_settings *params) +{ + struct ieee_types_header *chsw_ie; + struct ieee80211_channel_sw_ie *channel_sw; + int chsw_msec; + struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); + + if (priv->adapter->scan_processing) { + dev_err(priv->adapter->dev, + "radar detection: scan in process...\n"); + return -EBUSY; + } + + if (priv->wdev.cac_started) + return -EBUSY; + + if (cfg80211_chandef_identical(¶ms->chandef, + &priv->dfs_chandef)) + return -EINVAL; + + chsw_ie = (void *)cfg80211_find_ie(WLAN_EID_CHANNEL_SWITCH, + params->beacon_csa.tail, + params->beacon_csa.tail_len); + if (!chsw_ie) { + dev_err(priv->adapter->dev, + "Could not parse channel switch announcement IE\n"); + return -EINVAL; + } + + channel_sw = (void *)(chsw_ie + 1); + if (channel_sw->mode) { + if (netif_carrier_ok(priv->netdev)) + netif_carrier_off(priv->netdev); + mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter); + } + + if (mwifiex_del_mgmt_ies(priv)) + wiphy_err(wiphy, "Failed to delete mgmt IEs!\n"); + + if (mwifiex_set_mgmt_ies(priv, ¶ms->beacon_csa)) { + wiphy_err(wiphy, "%s: setting mgmt ies failed\n", __func__); + return -EFAULT; + } + + memcpy(&priv->dfs_chandef, ¶ms->chandef, sizeof(priv->dfs_chandef)); + memcpy(&priv->beacon_after, ¶ms->beacon_after, + sizeof(priv->beacon_after)); + + chsw_msec = max(channel_sw->count * priv->bss_cfg.beacon_period, 100); + queue_delayed_work(priv->dfs_chan_sw_workqueue, &priv->dfs_chan_sw_work, + msecs_to_jiffies(chsw_msec)); + return 0; +} + +static int +mwifiex_cfg80211_start_radar_detection(struct wiphy *wiphy, + struct net_device *dev, + struct cfg80211_chan_def *chandef, + u32 cac_time_ms) +{ + struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); + struct mwifiex_radar_params radar_params; + + if (priv->adapter->scan_processing) { + dev_err(priv->adapter->dev, + "radar detection: scan already in process...\n"); + return -EBUSY; + } + + if (!mwifiex_is_11h_active(priv)) { + dev_dbg(priv->adapter->dev, "Enable 11h extensions in FW\n"); + if (mwifiex_11h_activate(priv, true)) { + dev_err(priv->adapter->dev, + "Failed to activate 11h extensions!!"); + return -1; + } + priv->state_11h.is_11h_active = true; + } + + memset(&radar_params, 0, sizeof(struct mwifiex_radar_params)); + radar_params.chandef = chandef; + radar_params.cac_time_ms = cac_time_ms; + + memcpy(&priv->dfs_chandef, chandef, sizeof(priv->dfs_chandef)); + + if (mwifiex_send_cmd(priv, HostCmd_CMD_CHAN_REPORT_REQUEST, + HostCmd_ACT_GEN_SET, 0, &radar_params, true)) + return -1; + + queue_delayed_work(priv->dfs_cac_workqueue, &priv->dfs_cac_work, + msecs_to_jiffies(cac_time_ms)); + return 0; +} + +static int +mwifiex_cfg80211_change_station(struct wiphy *wiphy, struct net_device *dev, + const u8 *mac, + struct station_parameters *params) +{ + int ret; + struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); + + /* we support change_station handler only for TDLS peers*/ + if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) + return -ENOTSUPP; + + /* make sure we are in station mode and connected */ + if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected) + return -ENOTSUPP; + + priv->sta_params = params; + + ret = mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CONFIG_LINK); + priv->sta_params = NULL; + + return ret; +} + +/* 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, + .dump_survey = mwifiex_cfg80211_dump_survey, + .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, + .mgmt_tx = mwifiex_cfg80211_mgmt_tx, + .mgmt_frame_register = mwifiex_cfg80211_mgmt_frame_register, + .remain_on_channel = mwifiex_cfg80211_remain_on_channel, + .cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel, + .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, + .del_station = mwifiex_cfg80211_del_station, +#ifdef CONFIG_PM + .suspend = mwifiex_cfg80211_suspend, + .resume = mwifiex_cfg80211_resume, + .set_wakeup = mwifiex_cfg80211_set_wakeup, +#endif + .set_coalesce = mwifiex_cfg80211_set_coalesce, + .tdls_mgmt = mwifiex_cfg80211_tdls_mgmt, + .tdls_oper = mwifiex_cfg80211_tdls_oper, + .add_station = mwifiex_cfg80211_add_station, + .change_station = mwifiex_cfg80211_change_station, + .start_radar_detection = mwifiex_cfg80211_start_radar_detection, + .channel_switch = mwifiex_cfg80211_channel_switch, +}; + +#ifdef CONFIG_PM +static const struct wiphy_wowlan_support mwifiex_wowlan_support = { + .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT, + .n_patterns = MWIFIEX_MEF_MAX_FILTERS, + .pattern_min_len = 1, + .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN, + .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN, +}; +#endif + +static bool mwifiex_is_valid_alpha2(const char *alpha2) +{ + if (!alpha2 || strlen(alpha2) != 2) + return false; + + if (isalpha(alpha2[0]) && isalpha(alpha2[1])) + return true; + + return false; +} + +static const struct wiphy_coalesce_support mwifiex_coalesce_support = { + .n_rules = MWIFIEX_COALESCE_MAX_RULES, + .max_delay = MWIFIEX_MAX_COALESCING_DELAY, + .n_patterns = MWIFIEX_COALESCE_MAX_FILTERS, + .pattern_min_len = 1, + .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN, + .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN, +}; + +int mwifiex_init_channel_scan_gap(struct mwifiex_adapter *adapter) +{ + u32 n_channels_bg, n_channels_a = 0; + + n_channels_bg = mwifiex_band_2ghz.n_channels; + + if (adapter->config_bands & BAND_A) + n_channels_a = mwifiex_band_5ghz.n_channels; + + adapter->num_in_chan_stats = max_t(u32, n_channels_bg, n_channels_a); + adapter->chan_stats = vmalloc(sizeof(*adapter->chan_stats) * + adapter->num_in_chan_stats); + + if (!adapter->chan_stats) + return -ENOMEM; + + return 0; +} + +/* + * 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; + u32 thr, retry; + + /* 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->mgmt_stypes = mwifiex_mgmt_stypes; + wiphy->max_remain_on_channel_duration = 5000; + wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | + BIT(NL80211_IFTYPE_ADHOC) | + BIT(NL80211_IFTYPE_P2P_CLIENT) | + BIT(NL80211_IFTYPE_P2P_GO) | + 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); + + ether_addr_copy(wiphy->perm_addr, adapter->perm_addr); + wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; + wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME | + WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD | + WIPHY_FLAG_AP_UAPSD | + WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL | + WIPHY_FLAG_HAS_CHANNEL_SWITCH; + + if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info)) + wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS | + WIPHY_FLAG_TDLS_EXTERNAL_SETUP; + +#ifdef CONFIG_PM + wiphy->wowlan = &mwifiex_wowlan_support; +#endif + + wiphy->coalesce = &mwifiex_coalesce_support; + + wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS | + NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 | + NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P; + + wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1; + wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1; + + wiphy->features |= NL80211_FEATURE_HT_IBSS | + NL80211_FEATURE_INACTIVITY_TIMER | + NL80211_FEATURE_NEED_OBSS_SCAN; + + if (adapter->fw_api_ver == MWIFIEX_FW_V15) + wiphy->features |= NL80211_FEATURE_SK_TX_STATUS; + + /* 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, 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; + } + + if (reg_alpha2 && mwifiex_is_valid_alpha2(reg_alpha2)) { + wiphy_info(wiphy, "driver hint alpha2: %2.2s\n", reg_alpha2); + regulatory_hint(wiphy, reg_alpha2); + } else { + country_code = mwifiex_11d_code_2_region(adapter->region_code); + if (country_code) + wiphy_info(wiphy, "ignoring F/W country code %2.2s\n", + country_code); + } + + mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB, + HostCmd_ACT_GEN_GET, FRAG_THRESH_I, &thr, true); + wiphy->frag_threshold = thr; + mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB, + HostCmd_ACT_GEN_GET, RTS_THRESH_I, &thr, true); + wiphy->rts_threshold = thr; + mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB, + HostCmd_ACT_GEN_GET, SHORT_RETRY_LIM_I, &retry, true); + wiphy->retry_short = (u8) retry; + mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB, + HostCmd_ACT_GEN_GET, LONG_RETRY_LIM_I, &retry, true); + wiphy->retry_long = (u8) retry; + + adapter->wiphy = wiphy; + return ret; +} |