drivers/net/wireless/mwifiex/sta_event.c

   1 /*
   2  * Marvell Wireless LAN device driver: station event handling
   3  *
   4  * Copyright (C) 2011-2014, Marvell International Ltd.
   5  *
   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.
  13  *
  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.
  18  */
  19
  20 #include "decl.h"
  21 #include "ioctl.h"
  22 #include "util.h"
  23 #include "fw.h"
  24 #include "main.h"
  25 #include "wmm.h"
  26 #include "11n.h"
  27
  28 /*
  29  * This function resets the connection state.
  30  *
  31  * The function is invoked after receiving a disconnect event from firmware,
  32  * and performs the following actions -
  33  *      - Set media status to disconnected
  34  *      - Clean up Tx and Rx packets
  35  *      - Resets SNR/NF/RSSI value in driver
  36  *      - Resets security configurations in driver
  37  *      - Enables auto data rate
  38  *      - Saves the previous SSID and BSSID so that they can
  39  *        be used for re-association, if required
  40  *      - Erases current SSID and BSSID information
  41  *      - Sends a disconnect event to upper layers/applications.
  42  */
  43 void
  44 mwifiex_reset_connect_state(struct mwifiex_private *priv, u16 reason_code)
  45 {
  46         struct mwifiex_adapter *adapter = priv->adapter;
  47
  48         if (!priv->media_connected)
  49                 return;
  50
  51         mwifiex_dbg(adapter, INFO,
  52                     "info: handles disconnect event\n");
  53
  54         priv->media_connected = false;
  55
  56         priv->scan_block = false;
  57
  58         if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
  59             ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info)) {
  60                 mwifiex_disable_all_tdls_links(priv);
  61
  62                 if (priv->adapter->auto_tdls)
  63                         mwifiex_clean_auto_tdls(priv);
  64         }
  65
  66         /* Free Tx and Rx packets, report disconnect to upper layer */
  67         mwifiex_clean_txrx(priv);
  68
  69         /* Reset SNR/NF/RSSI values */
  70         priv->data_rssi_last = 0;
  71         priv->data_nf_last = 0;
  72         priv->data_rssi_avg = 0;
  73         priv->data_nf_avg = 0;
  74         priv->bcn_rssi_last = 0;
  75         priv->bcn_nf_last = 0;
  76         priv->bcn_rssi_avg = 0;
  77         priv->bcn_nf_avg = 0;
  78         priv->rxpd_rate = 0;
  79         priv->rxpd_htinfo = 0;
  80         priv->sec_info.wpa_enabled = false;
  81         priv->sec_info.wpa2_enabled = false;
  82         priv->wpa_ie_len = 0;
  83
  84         priv->sec_info.wapi_enabled = false;
  85         priv->wapi_ie_len = 0;
  86         priv->sec_info.wapi_key_on = false;
  87
  88         priv->sec_info.encryption_mode = 0;
  89
  90         /* Enable auto data rate */
  91         priv->is_data_rate_auto = true;
  92         priv->data_rate = 0;
  93
  94         if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA ||
  95              GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) && priv->hist_data)
  96                 mwifiex_hist_data_reset(priv);
  97
  98         if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
  99                 priv->adhoc_state = ADHOC_IDLE;
 100                 priv->adhoc_is_link_sensed = false;
 101         }
 102
 103         /*
 104          * Memorize the previous SSID and BSSID so
 105          * it could be used for re-assoc
 106          */
 107
 108         mwifiex_dbg(adapter, INFO,
 109                     "info: previous SSID=%s, SSID len=%u\n",
 110                     priv->prev_ssid.ssid, priv->prev_ssid.ssid_len);
 111
 112         mwifiex_dbg(adapter, INFO,
 113                     "info: current SSID=%s, SSID len=%u\n",
 114                     priv->curr_bss_params.bss_descriptor.ssid.ssid,
 115                     priv->curr_bss_params.bss_descriptor.ssid.ssid_len);
 116
 117         memcpy(&priv->prev_ssid,
 118                &priv->curr_bss_params.bss_descriptor.ssid,
 119                sizeof(struct cfg80211_ssid));
 120
 121         memcpy(priv->prev_bssid,
 122                priv->curr_bss_params.bss_descriptor.mac_address, ETH_ALEN);
 123
 124         /* Need to erase the current SSID and BSSID info */
 125         memset(&priv->curr_bss_params, 0x00, sizeof(priv->curr_bss_params));
 126
 127         adapter->tx_lock_flag = false;
 128         adapter->pps_uapsd_mode = false;
 129
 130         if (adapter->is_cmd_timedout && adapter->curr_cmd)
 131                 return;
 132         priv->media_connected = false;
 133         mwifiex_dbg(adapter, MSG,
 134                     "info: successfully disconnected from %pM: reason code %d\n",
 135                     priv->cfg_bssid, reason_code);
 136         if (priv->bss_mode == NL80211_IFTYPE_STATION ||
 137             priv->bss_mode == NL80211_IFTYPE_P2P_CLIENT) {
 138                 cfg80211_disconnected(priv->netdev, reason_code, NULL, 0,
 139                                       false, GFP_KERNEL);
 140         }
 141         eth_zero_addr(priv->cfg_bssid);
 142
 143         mwifiex_stop_net_dev_queue(priv->netdev, adapter);
 144         if (netif_carrier_ok(priv->netdev))
 145                 netif_carrier_off(priv->netdev);
 146 }
 147
 148 static int mwifiex_parse_tdls_event(struct mwifiex_private *priv,
 149                                     struct sk_buff *event_skb)
 150 {
 151         int ret = 0;
 152         struct mwifiex_adapter *adapter = priv->adapter;
 153         struct mwifiex_sta_node *sta_ptr;
 154         struct mwifiex_tdls_generic_event *tdls_evt =
 155                         (void *)event_skb->data + sizeof(adapter->event_cause);
 156
 157         /* reserved 2 bytes are not mandatory in tdls event */
 158         if (event_skb->len < (sizeof(struct mwifiex_tdls_generic_event) -
 159                               sizeof(u16) - sizeof(adapter->event_cause))) {
 160                 mwifiex_dbg(adapter, ERROR, "Invalid event length!\n");
 161                 return -1;
 162         }
 163
 164         sta_ptr = mwifiex_get_sta_entry(priv, tdls_evt->peer_mac);
 165         if (!sta_ptr) {
 166                 mwifiex_dbg(adapter, ERROR, "cannot get sta entry!\n");
 167                 return -1;
 168         }
 169
 170         switch (le16_to_cpu(tdls_evt->type)) {
 171         case TDLS_EVENT_LINK_TEAR_DOWN:
 172                 cfg80211_tdls_oper_request(priv->netdev,
 173                                            tdls_evt->peer_mac,
 174                                            NL80211_TDLS_TEARDOWN,
 175                                            le16_to_cpu(tdls_evt->u.reason_code),
 176                                            GFP_KERNEL);
 177                 break;
 178         default:
 179                 break;
 180         }
 181
 182         return ret;
 183 }
 184
 185 /*
 186 * This function handles coex events generated by firmware
 187 */
 188 void mwifiex_bt_coex_wlan_param_update_event(struct mwifiex_private *priv,
 189                                              struct sk_buff *event_skb)
 190 {
 191         struct mwifiex_adapter *adapter = priv->adapter;
 192         struct mwifiex_ie_types_header *tlv;
 193         struct mwifiex_ie_types_btcoex_aggr_win_size *winsizetlv;
 194         struct mwifiex_ie_types_btcoex_scan_time *scantlv;
 195         s32 len = event_skb->len - sizeof(u32);
 196         u8 *cur_ptr = event_skb->data + sizeof(u32);
 197         u16 tlv_type, tlv_len;
 198
 199         while (len >= sizeof(struct mwifiex_ie_types_header)) {
 200                 tlv = (struct mwifiex_ie_types_header *)cur_ptr;
 201                 tlv_len = le16_to_cpu(tlv->len);
 202                 tlv_type = le16_to_cpu(tlv->type);
 203
 204                 if ((tlv_len + sizeof(struct mwifiex_ie_types_header)) > len)
 205                         break;
 206                 switch (tlv_type) {
 207                 case TLV_BTCOEX_WL_AGGR_WINSIZE:
 208                         winsizetlv =
 209                             (struct mwifiex_ie_types_btcoex_aggr_win_size *)tlv;
 210                         adapter->coex_win_size = winsizetlv->coex_win_size;
 211                         adapter->coex_tx_win_size =
 212                                 winsizetlv->tx_win_size;
 213                         adapter->coex_rx_win_size =
 214                                 winsizetlv->rx_win_size;
 215                         mwifiex_coex_ampdu_rxwinsize(adapter);
 216                         mwifiex_update_ampdu_txwinsize(adapter);
 217                         break;
 218
 219                 case TLV_BTCOEX_WL_SCANTIME:
 220                         scantlv =
 221                             (struct mwifiex_ie_types_btcoex_scan_time *)tlv;
 222                         adapter->coex_scan = scantlv->coex_scan;
 223                         adapter->coex_min_scan_time = scantlv->min_scan_time;
 224                         adapter->coex_max_scan_time = scantlv->max_scan_time;
 225                         break;
 226
 227                 default:
 228                         break;
 229                 }
 230
 231                 len -= tlv_len + sizeof(struct mwifiex_ie_types_header);
 232                 cur_ptr += tlv_len +
 233                         sizeof(struct mwifiex_ie_types_header);
 234         }
 235
 236         dev_dbg(adapter->dev, "coex_scan=%d min_scan=%d coex_win=%d, tx_win=%d rx_win=%d\n",
 237                 adapter->coex_scan, adapter->coex_min_scan_time,
 238                 adapter->coex_win_size, adapter->coex_tx_win_size,
 239                 adapter->coex_rx_win_size);
 240 }
 241
 242 /*
 243  * This function handles events generated by firmware.
 244  *
 245  * This is a generic function and handles all events.
 246  *
 247  * Event specific routines are called by this function based
 248  * upon the generated event cause.
 249  *
 250  * For the following events, the function just forwards them to upper
 251  * layers, optionally recording the change -
 252  *      - EVENT_LINK_SENSED
 253  *      - EVENT_MIC_ERR_UNICAST
 254  *      - EVENT_MIC_ERR_MULTICAST
 255  *      - EVENT_PORT_RELEASE
 256  *      - EVENT_RSSI_LOW
 257  *      - EVENT_SNR_LOW
 258  *      - EVENT_MAX_FAIL
 259  *      - EVENT_RSSI_HIGH
 260  *      - EVENT_SNR_HIGH
 261  *      - EVENT_DATA_RSSI_LOW
 262  *      - EVENT_DATA_SNR_LOW
 263  *      - EVENT_DATA_RSSI_HIGH
 264  *      - EVENT_DATA_SNR_HIGH
 265  *      - EVENT_LINK_QUALITY
 266  *      - EVENT_PRE_BEACON_LOST
 267  *      - EVENT_IBSS_COALESCED
 268  *      - EVENT_WEP_ICV_ERR
 269  *      - EVENT_BW_CHANGE
 270  *      - EVENT_HOSTWAKE_STAIE
 271   *
 272  * For the following events, no action is taken -
 273  *      - EVENT_MIB_CHANGED
 274  *      - EVENT_INIT_DONE
 275  *      - EVENT_DUMMY_HOST_WAKEUP_SIGNAL
 276  *
 277  * Rest of the supported events requires driver handling -
 278  *      - EVENT_DEAUTHENTICATED
 279  *      - EVENT_DISASSOCIATED
 280  *      - EVENT_LINK_LOST
 281  *      - EVENT_PS_SLEEP
 282  *      - EVENT_PS_AWAKE
 283  *      - EVENT_DEEP_SLEEP_AWAKE
 284  *      - EVENT_HS_ACT_REQ
 285  *      - EVENT_ADHOC_BCN_LOST
 286  *      - EVENT_BG_SCAN_REPORT
 287  *      - EVENT_WMM_STATUS_CHANGE
 288  *      - EVENT_ADDBA
 289  *      - EVENT_DELBA
 290  *      - EVENT_BA_STREAM_TIEMOUT
 291  *      - EVENT_AMSDU_AGGR_CTRL
 292  */
 293 int mwifiex_process_sta_event(struct mwifiex_private *priv)
 294 {
 295         struct mwifiex_adapter *adapter = priv->adapter;
 296         int ret = 0;
 297         u32 eventcause = adapter->event_cause;
 298         u16 ctrl, reason_code;
 299
 300         switch (eventcause) {
 301         case EVENT_DUMMY_HOST_WAKEUP_SIGNAL:
 302                 mwifiex_dbg(adapter, ERROR,
 303                             "invalid EVENT: DUMMY_HOST_WAKEUP_SIGNAL, ignore it\n");
 304                 break;
 305         case EVENT_LINK_SENSED:
 306                 mwifiex_dbg(adapter, EVENT, "event: LINK_SENSED\n");
 307                 if (!netif_carrier_ok(priv->netdev))
 308                         netif_carrier_on(priv->netdev);
 309                 mwifiex_wake_up_net_dev_queue(priv->netdev, adapter);
 310                 break;
 311
 312         case EVENT_DEAUTHENTICATED:
 313                 mwifiex_dbg(adapter, EVENT, "event: Deauthenticated\n");
 314                 if (priv->wps.session_enable) {
 315                         mwifiex_dbg(adapter, INFO,
 316                                     "info: receive deauth event in wps session\n");
 317                         break;
 318                 }
 319                 adapter->dbg.num_event_deauth++;
 320                 if (priv->media_connected) {
 321                         reason_code =
 322                                 le16_to_cpu(*(__le16 *)adapter->event_body);
 323                         mwifiex_reset_connect_state(priv, reason_code);
 324                 }
 325                 break;
 326
 327         case EVENT_DISASSOCIATED:
 328                 mwifiex_dbg(adapter, EVENT, "event: Disassociated\n");
 329                 if (priv->wps.session_enable) {
 330                         mwifiex_dbg(adapter, INFO,
 331                                     "info: receive disassoc event in wps session\n");
 332                         break;
 333                 }
 334                 adapter->dbg.num_event_disassoc++;
 335                 if (priv->media_connected) {
 336                         reason_code =
 337                                 le16_to_cpu(*(__le16 *)adapter->event_body);
 338                         mwifiex_reset_connect_state(priv, reason_code);
 339                 }
 340                 break;
 341
 342         case EVENT_LINK_LOST:
 343                 mwifiex_dbg(adapter, EVENT, "event: Link lost\n");
 344                 adapter->dbg.num_event_link_lost++;
 345                 if (priv->media_connected) {
 346                         reason_code =
 347                                 le16_to_cpu(*(__le16 *)adapter->event_body);
 348                         mwifiex_reset_connect_state(priv, reason_code);
 349                 }
 350                 break;
 351
 352         case EVENT_PS_SLEEP:
 353                 mwifiex_dbg(adapter, EVENT, "info: EVENT: SLEEP\n");
 354
 355                 adapter->ps_state = PS_STATE_PRE_SLEEP;
 356
 357                 mwifiex_check_ps_cond(adapter);
 358                 break;
 359
 360         case EVENT_PS_AWAKE:
 361                 mwifiex_dbg(adapter, EVENT, "info: EVENT: AWAKE\n");
 362                 if (!adapter->pps_uapsd_mode &&
 363                     priv->media_connected && adapter->sleep_period.period) {
 364                                 adapter->pps_uapsd_mode = true;
 365                                 mwifiex_dbg(adapter, EVENT,
 366                                             "event: PPS/UAPSD mode activated\n");
 367                 }
 368                 adapter->tx_lock_flag = false;
 369                 if (adapter->pps_uapsd_mode && adapter->gen_null_pkt) {
 370                         if (mwifiex_check_last_packet_indication(priv)) {
 371                                 if (adapter->data_sent) {
 372                                         adapter->ps_state = PS_STATE_AWAKE;
 373                                         adapter->pm_wakeup_card_req = false;
 374                                         adapter->pm_wakeup_fw_try = false;
 375                                         del_timer(&adapter->wakeup_timer);
 376                                         break;
 377                                 }
 378                                 if (!mwifiex_send_null_packet
 379                                         (priv,
 380                                          MWIFIEX_TxPD_POWER_MGMT_NULL_PACKET |
 381                                          MWIFIEX_TxPD_POWER_MGMT_LAST_PACKET))
 382                                                 adapter->ps_state =
 383                                                         PS_STATE_SLEEP;
 384                                         return 0;
 385                         }
 386                 }
 387                 adapter->ps_state = PS_STATE_AWAKE;
 388                 adapter->pm_wakeup_card_req = false;
 389                 adapter->pm_wakeup_fw_try = false;
 390                 del_timer(&adapter->wakeup_timer);
 391
 392                 break;
 393
 394         case EVENT_DEEP_SLEEP_AWAKE:
 395                 adapter->if_ops.wakeup_complete(adapter);
 396                 mwifiex_dbg(adapter, EVENT, "event: DS_AWAKE\n");
 397                 if (adapter->is_deep_sleep)
 398                         adapter->is_deep_sleep = false;
 399                 break;
 400
 401         case EVENT_HS_ACT_REQ:
 402                 mwifiex_dbg(adapter, EVENT, "event: HS_ACT_REQ\n");
 403                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_HS_CFG_ENH,
 404                                        0, 0, NULL, false);
 405                 break;
 406
 407         case EVENT_MIC_ERR_UNICAST:
 408                 mwifiex_dbg(adapter, EVENT, "event: UNICAST MIC ERROR\n");
 409                 cfg80211_michael_mic_failure(priv->netdev, priv->cfg_bssid,
 410                                              NL80211_KEYTYPE_PAIRWISE,
 411                                              -1, NULL, GFP_KERNEL);
 412                 break;
 413
 414         case EVENT_MIC_ERR_MULTICAST:
 415                 mwifiex_dbg(adapter, EVENT, "event: MULTICAST MIC ERROR\n");
 416                 cfg80211_michael_mic_failure(priv->netdev, priv->cfg_bssid,
 417                                              NL80211_KEYTYPE_GROUP,
 418                                              -1, NULL, GFP_KERNEL);
 419                 break;
 420         case EVENT_MIB_CHANGED:
 421         case EVENT_INIT_DONE:
 422                 break;
 423
 424         case EVENT_ADHOC_BCN_LOST:
 425                 mwifiex_dbg(adapter, EVENT, "event: ADHOC_BCN_LOST\n");
 426                 priv->adhoc_is_link_sensed = false;
 427                 mwifiex_clean_txrx(priv);
 428                 mwifiex_stop_net_dev_queue(priv->netdev, adapter);
 429                 if (netif_carrier_ok(priv->netdev))
 430                         netif_carrier_off(priv->netdev);
 431                 break;
 432
 433         case EVENT_BG_SCAN_REPORT:
 434                 mwifiex_dbg(adapter, EVENT, "event: BGS_REPORT\n");
 435                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_BG_SCAN_QUERY,
 436                                        HostCmd_ACT_GEN_GET, 0, NULL, false);
 437                 break;
 438
 439         case EVENT_PORT_RELEASE:
 440                 mwifiex_dbg(adapter, EVENT, "event: PORT RELEASE\n");
 441                 break;
 442
 443         case EVENT_EXT_SCAN_REPORT:
 444                 mwifiex_dbg(adapter, EVENT, "event: EXT_SCAN Report\n");
 445                 if (adapter->ext_scan)
 446                         ret = mwifiex_handle_event_ext_scan_report(priv,
 447                                                 adapter->event_skb->data);
 448
 449                 break;
 450
 451         case EVENT_WMM_STATUS_CHANGE:
 452                 mwifiex_dbg(adapter, EVENT, "event: WMM status changed\n");
 453                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_WMM_GET_STATUS,
 454                                        0, 0, NULL, false);
 455                 break;
 456
 457         case EVENT_RSSI_LOW:
 458                 cfg80211_cqm_rssi_notify(priv->netdev,
 459                                          NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW,
 460                                          GFP_KERNEL);
 461                 mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO,
 462                                  HostCmd_ACT_GEN_GET, 0, NULL, false);
 463                 priv->subsc_evt_rssi_state = RSSI_LOW_RECVD;
 464                 mwifiex_dbg(adapter, EVENT, "event: Beacon RSSI_LOW\n");
 465                 break;
 466         case EVENT_SNR_LOW:
 467                 mwifiex_dbg(adapter, EVENT, "event: Beacon SNR_LOW\n");
 468                 break;
 469         case EVENT_MAX_FAIL:
 470                 mwifiex_dbg(adapter, EVENT, "event: MAX_FAIL\n");
 471                 break;
 472         case EVENT_RSSI_HIGH:
 473                 cfg80211_cqm_rssi_notify(priv->netdev,
 474                                          NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH,
 475                                          GFP_KERNEL);
 476                 mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO,
 477                                  HostCmd_ACT_GEN_GET, 0, NULL, false);
 478                 priv->subsc_evt_rssi_state = RSSI_HIGH_RECVD;
 479                 mwifiex_dbg(adapter, EVENT, "event: Beacon RSSI_HIGH\n");
 480                 break;
 481         case EVENT_SNR_HIGH:
 482                 mwifiex_dbg(adapter, EVENT, "event: Beacon SNR_HIGH\n");
 483                 break;
 484         case EVENT_DATA_RSSI_LOW:
 485                 mwifiex_dbg(adapter, EVENT, "event: Data RSSI_LOW\n");
 486                 break;
 487         case EVENT_DATA_SNR_LOW:
 488                 mwifiex_dbg(adapter, EVENT, "event: Data SNR_LOW\n");
 489                 break;
 490         case EVENT_DATA_RSSI_HIGH:
 491                 mwifiex_dbg(adapter, EVENT, "event: Data RSSI_HIGH\n");
 492                 break;
 493         case EVENT_DATA_SNR_HIGH:
 494                 mwifiex_dbg(adapter, EVENT, "event: Data SNR_HIGH\n");
 495                 break;
 496         case EVENT_LINK_QUALITY:
 497                 mwifiex_dbg(adapter, EVENT, "event: Link Quality\n");
 498                 break;
 499         case EVENT_PRE_BEACON_LOST:
 500                 mwifiex_dbg(adapter, EVENT, "event: Pre-Beacon Lost\n");
 501                 break;
 502         case EVENT_IBSS_COALESCED:
 503                 mwifiex_dbg(adapter, EVENT, "event: IBSS_COALESCED\n");
 504                 ret = mwifiex_send_cmd(priv,
 505                                 HostCmd_CMD_802_11_IBSS_COALESCING_STATUS,
 506                                 HostCmd_ACT_GEN_GET, 0, NULL, false);
 507                 break;
 508         case EVENT_ADDBA:
 509                 mwifiex_dbg(adapter, EVENT, "event: ADDBA Request\n");
 510                 mwifiex_send_cmd(priv, HostCmd_CMD_11N_ADDBA_RSP,
 511                                  HostCmd_ACT_GEN_SET, 0,
 512                                  adapter->event_body, false);
 513                 break;
 514         case EVENT_DELBA:
 515                 mwifiex_dbg(adapter, EVENT, "event: DELBA Request\n");
 516                 mwifiex_11n_delete_ba_stream(priv, adapter->event_body);
 517                 break;
 518         case EVENT_BA_STREAM_TIEMOUT:
 519                 mwifiex_dbg(adapter, EVENT, "event:  BA Stream timeout\n");
 520                 mwifiex_11n_ba_stream_timeout(priv,
 521                                               (struct host_cmd_ds_11n_batimeout
 522                                                *)
 523                                               adapter->event_body);
 524                 break;
 525         case EVENT_AMSDU_AGGR_CTRL:
 526                 ctrl = le16_to_cpu(*(__le16 *)adapter->event_body);
 527                 mwifiex_dbg(adapter, EVENT,
 528                             "event: AMSDU_AGGR_CTRL %d\n", ctrl);
 529
 530                 adapter->tx_buf_size =
 531                                 min_t(u16, adapter->curr_tx_buf_size, ctrl);
 532                 mwifiex_dbg(adapter, EVENT, "event: tx_buf_size %d\n",
 533                             adapter->tx_buf_size);
 534                 break;
 535
 536         case EVENT_WEP_ICV_ERR:
 537                 mwifiex_dbg(adapter, EVENT, "event: WEP ICV error\n");
 538                 break;
 539
 540         case EVENT_BW_CHANGE:
 541                 mwifiex_dbg(adapter, EVENT, "event: BW Change\n");
 542                 break;
 543
 544         case EVENT_HOSTWAKE_STAIE:
 545                 mwifiex_dbg(adapter, EVENT,
 546                             "event: HOSTWAKE_STAIE %d\n", eventcause);
 547                 break;
 548
 549         case EVENT_REMAIN_ON_CHAN_EXPIRED:
 550                 mwifiex_dbg(adapter, EVENT,
 551                             "event: Remain on channel expired\n");
 552                 cfg80211_remain_on_channel_expired(&priv->wdev,
 553                                                    priv->roc_cfg.cookie,
 554                                                    &priv->roc_cfg.chan,
 555                                                    GFP_ATOMIC);
 556
 557                 memset(&priv->roc_cfg, 0x00, sizeof(struct mwifiex_roc_cfg));
 558
 559                 break;
 560
 561         case EVENT_CHANNEL_SWITCH_ANN:
 562                 mwifiex_dbg(adapter, EVENT, "event: Channel Switch Announcement\n");
 563                 priv->csa_expire_time =
 564                                 jiffies + msecs_to_jiffies(DFS_CHAN_MOVE_TIME);
 565                 priv->csa_chan = priv->curr_bss_params.bss_descriptor.channel;
 566                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_DEAUTHENTICATE,
 567                         HostCmd_ACT_GEN_SET, 0,
 568                         priv->curr_bss_params.bss_descriptor.mac_address,
 569                         false);
 570                 break;
 571
 572         case EVENT_TDLS_GENERIC_EVENT:
 573                 ret = mwifiex_parse_tdls_event(priv, adapter->event_skb);
 574                 break;
 575
 576         case EVENT_TX_STATUS_REPORT:
 577                 mwifiex_dbg(adapter, EVENT, "event: TX_STATUS Report\n");
 578                 mwifiex_parse_tx_status_event(priv, adapter->event_body);
 579                 break;
 580
 581         case EVENT_CHANNEL_REPORT_RDY:
 582                 mwifiex_dbg(adapter, EVENT, "event: Channel Report\n");
 583                 ret = mwifiex_11h_handle_chanrpt_ready(priv,
 584                                                        adapter->event_skb);
 585                 break;
 586         case EVENT_RADAR_DETECTED:
 587                 mwifiex_dbg(adapter, EVENT, "event: Radar detected\n");
 588                 ret = mwifiex_11h_handle_radar_detected(priv,
 589                                                         adapter->event_skb);
 590                 break;
 591         case EVENT_BT_COEX_WLAN_PARA_CHANGE:
 592                 dev_dbg(adapter->dev, "EVENT: BT coex wlan param update\n");
 593                 mwifiex_bt_coex_wlan_param_update_event(priv,
 594                                                         adapter->event_skb);
 595                 break;
 596         default:
 597                 mwifiex_dbg(adapter, ERROR, "event: unknown event id: %#x\n",
 598                             eventcause);
 599                 break;
 600         }
 601
 602         return ret;
 603 }