2 * Marvell Wireless LAN device driver: AP event handling
4 * Copyright (C) 2012-2014, Marvell International Ltd.
6 * This software file (the "File") is distributed by Marvell International
7 * Ltd. under the terms of the GNU General Public License Version 2, June 1991
8 * (the "License"). You may use, redistribute and/or modify this File in
9 * accordance with the terms and conditions of the License, a copy of which
10 * is available by writing to the Free Software Foundation, Inc.,
11 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
12 * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
14 * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
16 * ARE EXPRESSLY DISCLAIMED. The License provides additional details about
17 * this warranty disclaimer.
24 #define MWIFIEX_BSS_START_EVT_FIX_SIZE 12
26 static int mwifiex_check_uap_capabilties(struct mwifiex_private *priv,
27 struct sk_buff *event)
32 struct mwifiex_ie_types_data *tlv_hdr;
33 struct ieee_types_wmm_parameter *wmm_param_ie = NULL;
34 int mask = IEEE80211_WMM_IE_AP_QOSINFO_PARAM_SET_CNT_MASK;
36 priv->wmm_enabled = false;
37 skb_pull(event, MWIFIEX_BSS_START_EVT_FIX_SIZE);
41 mwifiex_dbg_dump(priv->adapter, EVT_D, "uap capabilties:",
42 event->data, event->len);
44 while ((evt_len >= sizeof(tlv_hdr->header))) {
45 tlv_hdr = (struct mwifiex_ie_types_data *)curr;
46 tlv_len = le16_to_cpu(tlv_hdr->header.len);
48 if (evt_len < tlv_len + sizeof(tlv_hdr->header))
51 switch (le16_to_cpu(tlv_hdr->header.type)) {
52 case WLAN_EID_HT_CAPABILITY:
53 priv->ap_11n_enabled = true;
56 case WLAN_EID_VHT_CAPABILITY:
57 priv->ap_11ac_enabled = true;
60 case WLAN_EID_VENDOR_SPECIFIC:
61 /* Point the regular IEEE IE 2 bytes into the Marvell IE
62 * and setup the IEEE IE type and length byte fields
64 wmm_param_ie = (void *)(curr + 2);
65 wmm_param_ie->vend_hdr.len = (u8)tlv_len;
66 wmm_param_ie->vend_hdr.element_id =
67 WLAN_EID_VENDOR_SPECIFIC;
68 mwifiex_dbg(priv->adapter, EVENT,
69 "info: check uap capabilities:\t"
70 "wmm parameter set count: %d\n",
71 wmm_param_ie->qos_info_bitmap & mask);
73 mwifiex_wmm_setup_ac_downgrade(priv);
74 priv->wmm_enabled = true;
75 mwifiex_wmm_setup_queue_priorities(priv, wmm_param_ie);
82 curr += (tlv_len + sizeof(tlv_hdr->header));
83 evt_len -= (tlv_len + sizeof(tlv_hdr->header));
90 * This function handles AP interface specific events generated by firmware.
92 * Event specific routines are called by this function based
93 * upon the generated event cause.
96 * Events supported for AP -
97 * - EVENT_UAP_STA_ASSOC
98 * - EVENT_UAP_STA_DEAUTH
99 * - EVENT_UAP_BSS_ACTIVE
100 * - EVENT_UAP_BSS_START
101 * - EVENT_UAP_BSS_IDLE
102 * - EVENT_UAP_MIC_COUNTERMEASURES:
104 int mwifiex_process_uap_event(struct mwifiex_private *priv)
106 struct mwifiex_adapter *adapter = priv->adapter;
108 u32 eventcause = adapter->event_cause;
109 struct station_info sinfo;
110 struct mwifiex_assoc_event *event;
111 struct mwifiex_sta_node *node;
113 struct host_cmd_ds_11n_batimeout *ba_timeout;
116 switch (eventcause) {
117 case EVENT_UAP_STA_ASSOC:
118 memset(&sinfo, 0, sizeof(sinfo));
119 event = (struct mwifiex_assoc_event *)
120 (adapter->event_body + MWIFIEX_UAP_EVENT_EXTRA_HEADER);
121 if (le16_to_cpu(event->type) == TLV_TYPE_UAP_MGMT_FRAME) {
124 if (ieee80211_is_assoc_req(event->frame_control))
126 else if (ieee80211_is_reassoc_req(event->frame_control))
127 /* There will be ETH_ALEN bytes of
128 * current_ap_addr before the re-assoc ies.
133 sinfo.assoc_req_ies = &event->data[len];
134 len = (u8 *)sinfo.assoc_req_ies -
135 (u8 *)&event->frame_control;
136 sinfo.assoc_req_ies_len =
137 le16_to_cpu(event->len) - (u16)len;
140 cfg80211_new_sta(priv->netdev, event->sta_addr, &sinfo,
143 node = mwifiex_add_sta_entry(priv, event->sta_addr);
145 mwifiex_dbg(adapter, ERROR,
146 "could not create station entry!\n");
150 if (!priv->ap_11n_enabled)
153 mwifiex_set_sta_ht_cap(priv, sinfo.assoc_req_ies,
154 sinfo.assoc_req_ies_len, node);
156 for (i = 0; i < MAX_NUM_TID; i++) {
157 if (node->is_11n_enabled)
159 priv->aggr_prio_tbl[i].ampdu_user;
161 node->ampdu_sta[i] = BA_STREAM_NOT_ALLOWED;
163 memset(node->rx_seq, 0xff, sizeof(node->rx_seq));
165 case EVENT_UAP_STA_DEAUTH:
166 deauth_mac = adapter->event_body +
167 MWIFIEX_UAP_EVENT_EXTRA_HEADER;
168 cfg80211_del_sta(priv->netdev, deauth_mac, GFP_KERNEL);
170 if (priv->ap_11n_enabled) {
171 mwifiex_11n_del_rx_reorder_tbl_by_ta(priv, deauth_mac);
172 mwifiex_del_tx_ba_stream_tbl_by_ra(priv, deauth_mac);
174 mwifiex_wmm_del_peer_ra_list(priv, deauth_mac);
175 mwifiex_del_sta_entry(priv, deauth_mac);
177 case EVENT_UAP_BSS_IDLE:
178 priv->media_connected = false;
179 if (netif_carrier_ok(priv->netdev))
180 netif_carrier_off(priv->netdev);
181 mwifiex_stop_net_dev_queue(priv->netdev, adapter);
183 mwifiex_clean_txrx(priv);
184 mwifiex_del_all_sta_list(priv);
186 case EVENT_UAP_BSS_ACTIVE:
187 priv->media_connected = true;
188 if (!netif_carrier_ok(priv->netdev))
189 netif_carrier_on(priv->netdev);
190 mwifiex_wake_up_net_dev_queue(priv->netdev, adapter);
192 case EVENT_UAP_BSS_START:
193 mwifiex_dbg(adapter, EVENT,
194 "AP EVENT: event id: %#x\n", eventcause);
195 memcpy(priv->netdev->dev_addr, adapter->event_body + 2,
198 mwifiex_hist_data_reset(priv);
199 mwifiex_check_uap_capabilties(priv, adapter->event_skb);
201 case EVENT_UAP_MIC_COUNTERMEASURES:
202 /* For future development */
203 mwifiex_dbg(adapter, EVENT,
204 "AP EVENT: event id: %#x\n", eventcause);
206 case EVENT_AMSDU_AGGR_CTRL:
207 ctrl = le16_to_cpu(*(__le16 *)adapter->event_body);
208 mwifiex_dbg(adapter, EVENT,
209 "event: AMSDU_AGGR_CTRL %d\n", ctrl);
211 if (priv->media_connected) {
212 adapter->tx_buf_size =
213 min_t(u16, adapter->curr_tx_buf_size, ctrl);
214 mwifiex_dbg(adapter, EVENT,
215 "event: tx_buf_size %d\n",
216 adapter->tx_buf_size);
220 mwifiex_dbg(adapter, EVENT, "event: ADDBA Request\n");
221 if (priv->media_connected)
222 mwifiex_send_cmd(priv, HostCmd_CMD_11N_ADDBA_RSP,
223 HostCmd_ACT_GEN_SET, 0,
224 adapter->event_body, false);
227 mwifiex_dbg(adapter, EVENT, "event: DELBA Request\n");
228 if (priv->media_connected)
229 mwifiex_11n_delete_ba_stream(priv, adapter->event_body);
231 case EVENT_BA_STREAM_TIEMOUT:
232 mwifiex_dbg(adapter, EVENT, "event: BA Stream timeout\n");
233 if (priv->media_connected) {
234 ba_timeout = (void *)adapter->event_body;
235 mwifiex_11n_ba_stream_timeout(priv, ba_timeout);
238 case EVENT_EXT_SCAN_REPORT:
239 mwifiex_dbg(adapter, EVENT, "event: EXT_SCAN Report\n");
240 if (adapter->ext_scan)
241 return mwifiex_handle_event_ext_scan_report(priv,
242 adapter->event_skb->data);
244 case EVENT_TX_STATUS_REPORT:
245 mwifiex_dbg(adapter, EVENT, "event: TX_STATUS Report\n");
246 mwifiex_parse_tx_status_event(priv, adapter->event_body);
249 mwifiex_dbg(adapter, EVENT, "info: EVENT: SLEEP\n");
251 adapter->ps_state = PS_STATE_PRE_SLEEP;
253 mwifiex_check_ps_cond(adapter);
257 mwifiex_dbg(adapter, EVENT, "info: EVENT: AWAKE\n");
258 if (!adapter->pps_uapsd_mode &&
259 priv->media_connected && adapter->sleep_period.period) {
260 adapter->pps_uapsd_mode = true;
261 mwifiex_dbg(adapter, EVENT,
262 "event: PPS/UAPSD mode activated\n");
264 adapter->tx_lock_flag = false;
265 if (adapter->pps_uapsd_mode && adapter->gen_null_pkt) {
266 if (mwifiex_check_last_packet_indication(priv)) {
267 if (adapter->data_sent) {
268 adapter->ps_state = PS_STATE_AWAKE;
269 adapter->pm_wakeup_card_req = false;
270 adapter->pm_wakeup_fw_try = false;
273 if (!mwifiex_send_null_packet
275 MWIFIEX_TxPD_POWER_MGMT_NULL_PACKET |
276 MWIFIEX_TxPD_POWER_MGMT_LAST_PACKET))
282 adapter->ps_state = PS_STATE_AWAKE;
283 adapter->pm_wakeup_card_req = false;
284 adapter->pm_wakeup_fw_try = false;
287 case EVENT_CHANNEL_REPORT_RDY:
288 mwifiex_dbg(adapter, EVENT, "event: Channel Report\n");
289 mwifiex_11h_handle_chanrpt_ready(priv, adapter->event_skb);
291 case EVENT_RADAR_DETECTED:
292 mwifiex_dbg(adapter, EVENT, "event: Radar detected\n");
293 mwifiex_11h_handle_radar_detected(priv, adapter->event_skb);
295 case EVENT_BT_COEX_WLAN_PARA_CHANGE:
296 dev_err(adapter->dev, "EVENT: BT coex wlan param update\n");
297 mwifiex_bt_coex_wlan_param_update_event(priv,
301 mwifiex_dbg(adapter, EVENT,
302 "event: unknown event id: %#x\n", eventcause);
309 /* This function deletes station entry from associated station list.
310 * Also if both AP and STA are 11n enabled, RxReorder tables and TxBA stream
311 * tables created for this station are deleted.
313 void mwifiex_uap_del_sta_data(struct mwifiex_private *priv,
314 struct mwifiex_sta_node *node)
316 if (priv->ap_11n_enabled && node->is_11n_enabled) {
317 mwifiex_11n_del_rx_reorder_tbl_by_ta(priv, node->mac_addr);
318 mwifiex_del_tx_ba_stream_tbl_by_ra(priv, node->mac_addr);
320 mwifiex_del_sta_entry(priv, node->mac_addr);