/* * Marvell Wireless LAN device driver: AP event handling * * Copyright (C) 2012-2014, 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 "decl.h" #include "main.h" #include "11n.h" /* * This function handles AP interface specific events generated by firmware. * * Event specific routines are called by this function based * upon the generated event cause. * * * Events supported for AP - * - EVENT_UAP_STA_ASSOC * - EVENT_UAP_STA_DEAUTH * - EVENT_UAP_BSS_ACTIVE * - EVENT_UAP_BSS_START * - EVENT_UAP_BSS_IDLE * - EVENT_UAP_MIC_COUNTERMEASURES: */ int mwifiex_process_uap_event(struct mwifiex_private *priv) { struct mwifiex_adapter *adapter = priv->adapter; int len, i; u32 eventcause = adapter->event_cause; struct station_info sinfo; struct mwifiex_assoc_event *event; struct mwifiex_sta_node *node; u8 *deauth_mac; struct host_cmd_ds_11n_batimeout *ba_timeout; u16 ctrl; switch (eventcause) { case EVENT_UAP_STA_ASSOC: memset(&sinfo, 0, sizeof(sinfo)); event = (struct mwifiex_assoc_event *) (adapter->event_body + MWIFIEX_UAP_EVENT_EXTRA_HEADER); if (le16_to_cpu(event->type) == TLV_TYPE_UAP_MGMT_FRAME) { len = -1; if (ieee80211_is_assoc_req(event->frame_control)) len = 0; else if (ieee80211_is_reassoc_req(event->frame_control)) /* There will be ETH_ALEN bytes of * current_ap_addr before the re-assoc ies. */ len = ETH_ALEN; if (len != -1) { sinfo.filled = STATION_INFO_ASSOC_REQ_IES; sinfo.assoc_req_ies = &event->data[len]; len = (u8 *)sinfo.assoc_req_ies - (u8 *)&event->frame_control; sinfo.assoc_req_ies_len = le16_to_cpu(event->len) - (u16)len; } } cfg80211_new_sta(priv->netdev, event->sta_addr, &sinfo, GFP_KERNEL); node = mwifiex_add_sta_entry(priv, event->sta_addr); if (!node) { dev_warn(adapter->dev, "could not create station entry!\n"); return -1; } if (!priv->ap_11n_enabled) break; mwifiex_set_sta_ht_cap(priv, sinfo.assoc_req_ies, sinfo.assoc_req_ies_len, node); for (i = 0; i < MAX_NUM_TID; i++) { if (node->is_11n_enabled) node->ampdu_sta[i] = priv->aggr_prio_tbl[i].ampdu_user; else node->ampdu_sta[i] = BA_STREAM_NOT_ALLOWED; } memset(node->rx_seq, 0xff, sizeof(node->rx_seq)); break; case EVENT_UAP_STA_DEAUTH: deauth_mac = adapter->event_body + MWIFIEX_UAP_EVENT_EXTRA_HEADER; cfg80211_del_sta(priv->netdev, deauth_mac, GFP_KERNEL); if (priv->ap_11n_enabled) { mwifiex_11n_del_rx_reorder_tbl_by_ta(priv, deauth_mac); mwifiex_del_tx_ba_stream_tbl_by_ra(priv, deauth_mac); } mwifiex_del_sta_entry(priv, deauth_mac); break; case EVENT_UAP_BSS_IDLE: priv->media_connected = false; if (netif_carrier_ok(priv->netdev)) netif_carrier_off(priv->netdev); mwifiex_stop_net_dev_queue(priv->netdev, adapter); mwifiex_clean_txrx(priv); mwifiex_del_all_sta_list(priv); break; case EVENT_UAP_BSS_ACTIVE: priv->media_connected = true; if (!netif_carrier_ok(priv->netdev)) netif_carrier_on(priv->netdev); mwifiex_wake_up_net_dev_queue(priv->netdev, adapter); break; case EVENT_UAP_BSS_START: dev_dbg(adapter->dev, "AP EVENT: event id: %#x\n", eventcause); memcpy(priv->netdev->dev_addr, adapter->event_body + 2, ETH_ALEN); break; case EVENT_UAP_MIC_COUNTERMEASURES: /* For future development */ dev_dbg(adapter->dev, "AP EVENT: event id: %#x\n", eventcause); break; case EVENT_AMSDU_AGGR_CTRL: ctrl = le16_to_cpu(*(__le16 *)adapter->event_body); dev_dbg(adapter->dev, "event: AMSDU_AGGR_CTRL %d\n", ctrl); if (priv->media_connected) { adapter->tx_buf_size = min_t(u16, adapter->curr_tx_buf_size, ctrl); dev_dbg(adapter->dev, "event: tx_buf_size %d\n", adapter->tx_buf_size); } break; case EVENT_ADDBA: dev_dbg(adapter->dev, "event: ADDBA Request\n"); if (priv->media_connected) mwifiex_send_cmd(priv, HostCmd_CMD_11N_ADDBA_RSP, HostCmd_ACT_GEN_SET, 0, adapter->event_body, false); break; case EVENT_DELBA: dev_dbg(adapter->dev, "event: DELBA Request\n"); if (priv->media_connected) mwifiex_11n_delete_ba_stream(priv, adapter->event_body); break; case EVENT_BA_STREAM_TIEMOUT: dev_dbg(adapter->dev, "event: BA Stream timeout\n"); if (priv->media_connected) { ba_timeout = (void *)adapter->event_body; mwifiex_11n_ba_stream_timeout(priv, ba_timeout); } break; case EVENT_EXT_SCAN_REPORT: dev_dbg(adapter->dev, "event: EXT_SCAN Report\n"); if (adapter->ext_scan) return mwifiex_handle_event_ext_scan_report(priv, adapter->event_skb->data); break; case EVENT_TX_STATUS_REPORT: dev_dbg(adapter->dev, "event: TX_STATUS Report\n"); mwifiex_parse_tx_status_event(priv, adapter->event_body); break; default: dev_dbg(adapter->dev, "event: unknown event id: %#x\n", eventcause); break; } return 0; } /* This function deletes station entry from associated station list. * Also if both AP and STA are 11n enabled, RxReorder tables and TxBA stream * tables created for this station are deleted. */ void mwifiex_uap_del_sta_data(struct mwifiex_private *priv, struct mwifiex_sta_node *node) { if (priv->ap_11n_enabled && node->is_11n_enabled) { mwifiex_11n_del_rx_reorder_tbl_by_ta(priv, node->mac_addr); mwifiex_del_tx_ba_stream_tbl_by_ra(priv, node->mac_addr); } mwifiex_del_sta_entry(priv, node->mac_addr); return; }