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 priv->port_open = false; 58 59 if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) && 60 ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info)) { 61 mwifiex_disable_all_tdls_links(priv); 62 63 if (priv->adapter->auto_tdls) 64 mwifiex_clean_auto_tdls(priv); 65 } 66 67 /* Free Tx and Rx packets, report disconnect to upper layer */ 68 mwifiex_clean_txrx(priv); 69 70 /* Reset SNR/NF/RSSI values */ 71 priv->data_rssi_last = 0; 72 priv->data_nf_last = 0; 73 priv->data_rssi_avg = 0; 74 priv->data_nf_avg = 0; 75 priv->bcn_rssi_last = 0; 76 priv->bcn_nf_last = 0; 77 priv->bcn_rssi_avg = 0; 78 priv->bcn_nf_avg = 0; 79 priv->rxpd_rate = 0; 80 priv->rxpd_htinfo = 0; 81 priv->sec_info.wpa_enabled = false; 82 priv->sec_info.wpa2_enabled = false; 83 priv->wpa_ie_len = 0; 84 85 priv->sec_info.wapi_enabled = false; 86 priv->wapi_ie_len = 0; 87 priv->sec_info.wapi_key_on = false; 88 89 priv->sec_info.encryption_mode = 0; 90 91 /* Enable auto data rate */ 92 priv->is_data_rate_auto = true; 93 priv->data_rate = 0; 94 95 priv->assoc_resp_ht_param = 0; 96 priv->ht_param_present = false; 97 98 if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA || 99 GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) && priv->hist_data) 100 mwifiex_hist_data_reset(priv); 101 102 if (priv->bss_mode == NL80211_IFTYPE_ADHOC) { 103 priv->adhoc_state = ADHOC_IDLE; 104 priv->adhoc_is_link_sensed = false; 105 } 106 107 /* 108 * Memorize the previous SSID and BSSID so 109 * it could be used for re-assoc 110 */ 111 112 mwifiex_dbg(adapter, INFO, 113 "info: previous SSID=%s, SSID len=%u\n", 114 priv->prev_ssid.ssid, priv->prev_ssid.ssid_len); 115 116 mwifiex_dbg(adapter, INFO, 117 "info: current SSID=%s, SSID len=%u\n", 118 priv->curr_bss_params.bss_descriptor.ssid.ssid, 119 priv->curr_bss_params.bss_descriptor.ssid.ssid_len); 120 121 memcpy(&priv->prev_ssid, 122 &priv->curr_bss_params.bss_descriptor.ssid, 123 sizeof(struct cfg80211_ssid)); 124 125 memcpy(priv->prev_bssid, 126 priv->curr_bss_params.bss_descriptor.mac_address, ETH_ALEN); 127 128 /* Need to erase the current SSID and BSSID info */ 129 memset(&priv->curr_bss_params, 0x00, sizeof(priv->curr_bss_params)); 130 131 adapter->tx_lock_flag = false; 132 adapter->pps_uapsd_mode = false; 133 134 if (adapter->is_cmd_timedout && adapter->curr_cmd) 135 return; 136 priv->media_connected = false; 137 mwifiex_dbg(adapter, MSG, 138 "info: successfully disconnected from %pM: reason code %d\n", 139 priv->cfg_bssid, reason_code); 140 if (priv->bss_mode == NL80211_IFTYPE_STATION || 141 priv->bss_mode == NL80211_IFTYPE_P2P_CLIENT) { 142 cfg80211_disconnected(priv->netdev, reason_code, NULL, 0, 143 false, GFP_KERNEL); 144 } 145 eth_zero_addr(priv->cfg_bssid); 146 147 mwifiex_stop_net_dev_queue(priv->netdev, adapter); 148 if (netif_carrier_ok(priv->netdev)) 149 netif_carrier_off(priv->netdev); 150 } 151 152 static int mwifiex_parse_tdls_event(struct mwifiex_private *priv, 153 struct sk_buff *event_skb) 154 { 155 int ret = 0; 156 struct mwifiex_adapter *adapter = priv->adapter; 157 struct mwifiex_sta_node *sta_ptr; 158 struct mwifiex_tdls_generic_event *tdls_evt = 159 (void *)event_skb->data + sizeof(adapter->event_cause); 160 u8 *mac = tdls_evt->peer_mac; 161 162 /* reserved 2 bytes are not mandatory in tdls event */ 163 if (event_skb->len < (sizeof(struct mwifiex_tdls_generic_event) - 164 sizeof(u16) - sizeof(adapter->event_cause))) { 165 mwifiex_dbg(adapter, ERROR, "Invalid event length!\n"); 166 return -1; 167 } 168 169 sta_ptr = mwifiex_get_sta_entry(priv, tdls_evt->peer_mac); 170 if (!sta_ptr) { 171 mwifiex_dbg(adapter, ERROR, "cannot get sta entry!\n"); 172 return -1; 173 } 174 175 switch (le16_to_cpu(tdls_evt->type)) { 176 case TDLS_EVENT_LINK_TEAR_DOWN: 177 cfg80211_tdls_oper_request(priv->netdev, 178 tdls_evt->peer_mac, 179 NL80211_TDLS_TEARDOWN, 180 le16_to_cpu(tdls_evt->u.reason_code), 181 GFP_KERNEL); 182 break; 183 case TDLS_EVENT_CHAN_SWITCH_RESULT: 184 mwifiex_dbg(adapter, EVENT, "tdls channel switch result :\n"); 185 mwifiex_dbg(adapter, EVENT, 186 "status=0x%x, reason=0x%x cur_chan=%d\n", 187 tdls_evt->u.switch_result.status, 188 tdls_evt->u.switch_result.reason, 189 tdls_evt->u.switch_result.cur_chan); 190 191 /* tdls channel switch failed */ 192 if (tdls_evt->u.switch_result.status != 0) { 193 switch (tdls_evt->u.switch_result.cur_chan) { 194 case TDLS_BASE_CHANNEL: 195 sta_ptr->tdls_status = TDLS_IN_BASE_CHAN; 196 break; 197 case TDLS_OFF_CHANNEL: 198 sta_ptr->tdls_status = TDLS_IN_OFF_CHAN; 199 break; 200 default: 201 break; 202 } 203 return ret; 204 } 205 206 /* tdls channel switch success */ 207 switch (tdls_evt->u.switch_result.cur_chan) { 208 case TDLS_BASE_CHANNEL: 209 if (sta_ptr->tdls_status == TDLS_IN_BASE_CHAN) 210 break; 211 mwifiex_update_ralist_tx_pause_in_tdls_cs(priv, mac, 212 false); 213 sta_ptr->tdls_status = TDLS_IN_BASE_CHAN; 214 break; 215 case TDLS_OFF_CHANNEL: 216 if (sta_ptr->tdls_status == TDLS_IN_OFF_CHAN) 217 break; 218 mwifiex_update_ralist_tx_pause_in_tdls_cs(priv, mac, 219 true); 220 sta_ptr->tdls_status = TDLS_IN_OFF_CHAN; 221 break; 222 default: 223 break; 224 } 225 226 break; 227 case TDLS_EVENT_START_CHAN_SWITCH: 228 mwifiex_dbg(adapter, EVENT, "tdls start channel switch...\n"); 229 sta_ptr->tdls_status = TDLS_CHAN_SWITCHING; 230 break; 231 case TDLS_EVENT_CHAN_SWITCH_STOPPED: 232 mwifiex_dbg(adapter, EVENT, 233 "tdls chan switch stopped, reason=%d\n", 234 tdls_evt->u.cs_stop_reason); 235 break; 236 default: 237 break; 238 } 239 240 return ret; 241 } 242 243 static void mwifiex_process_uap_tx_pause(struct mwifiex_private *priv, 244 struct mwifiex_ie_types_header *tlv) 245 { 246 struct mwifiex_tx_pause_tlv *tp; 247 struct mwifiex_sta_node *sta_ptr; 248 unsigned long flags; 249 250 tp = (void *)tlv; 251 mwifiex_dbg(priv->adapter, EVENT, 252 "uap tx_pause: %pM pause=%d, pkts=%d\n", 253 tp->peermac, tp->tx_pause, 254 tp->pkt_cnt); 255 256 if (ether_addr_equal(tp->peermac, priv->netdev->dev_addr)) { 257 if (tp->tx_pause) 258 priv->port_open = false; 259 else 260 priv->port_open = true; 261 } else if (is_multicast_ether_addr(tp->peermac)) { 262 mwifiex_update_ralist_tx_pause(priv, tp->peermac, tp->tx_pause); 263 } else { 264 spin_lock_irqsave(&priv->sta_list_spinlock, flags); 265 sta_ptr = mwifiex_get_sta_entry(priv, tp->peermac); 266 spin_unlock_irqrestore(&priv->sta_list_spinlock, flags); 267 268 if (sta_ptr && sta_ptr->tx_pause != tp->tx_pause) { 269 sta_ptr->tx_pause = tp->tx_pause; 270 mwifiex_update_ralist_tx_pause(priv, tp->peermac, 271 tp->tx_pause); 272 } 273 } 274 } 275 276 static void mwifiex_process_sta_tx_pause(struct mwifiex_private *priv, 277 struct mwifiex_ie_types_header *tlv) 278 { 279 struct mwifiex_tx_pause_tlv *tp; 280 struct mwifiex_sta_node *sta_ptr; 281 int status; 282 unsigned long flags; 283 284 tp = (void *)tlv; 285 mwifiex_dbg(priv->adapter, EVENT, 286 "sta tx_pause: %pM pause=%d, pkts=%d\n", 287 tp->peermac, tp->tx_pause, 288 tp->pkt_cnt); 289 290 if (ether_addr_equal(tp->peermac, priv->cfg_bssid)) { 291 if (tp->tx_pause) 292 priv->port_open = false; 293 else 294 priv->port_open = true; 295 } else { 296 if (!ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info)) 297 return; 298 299 status = mwifiex_get_tdls_link_status(priv, tp->peermac); 300 if (mwifiex_is_tdls_link_setup(status)) { 301 spin_lock_irqsave(&priv->sta_list_spinlock, flags); 302 sta_ptr = mwifiex_get_sta_entry(priv, tp->peermac); 303 spin_unlock_irqrestore(&priv->sta_list_spinlock, flags); 304 305 if (sta_ptr && sta_ptr->tx_pause != tp->tx_pause) { 306 sta_ptr->tx_pause = tp->tx_pause; 307 mwifiex_update_ralist_tx_pause(priv, 308 tp->peermac, 309 tp->tx_pause); 310 } 311 } 312 } 313 } 314 315 void mwifiex_process_multi_chan_event(struct mwifiex_private *priv, 316 struct sk_buff *event_skb) 317 { 318 struct mwifiex_ie_types_multi_chan_info *chan_info; 319 struct mwifiex_ie_types_mc_group_info *grp_info; 320 struct mwifiex_adapter *adapter = priv->adapter; 321 struct mwifiex_ie_types_header *tlv; 322 u16 tlv_buf_left, tlv_type, tlv_len; 323 int intf_num, bss_type, bss_num, i; 324 struct mwifiex_private *intf_priv; 325 326 tlv_buf_left = event_skb->len - sizeof(u32); 327 chan_info = (void *)event_skb->data + sizeof(u32); 328 329 if (le16_to_cpu(chan_info->header.type) != TLV_TYPE_MULTI_CHAN_INFO || 330 tlv_buf_left < sizeof(struct mwifiex_ie_types_multi_chan_info)) { 331 mwifiex_dbg(adapter, ERROR, 332 "unknown TLV in chan_info event\n"); 333 return; 334 } 335 336 adapter->usb_mc_status = le16_to_cpu(chan_info->status); 337 mwifiex_dbg(adapter, EVENT, "multi chan operation %s\n", 338 adapter->usb_mc_status ? "started" : "over"); 339 340 tlv_buf_left -= sizeof(struct mwifiex_ie_types_multi_chan_info); 341 tlv = (struct mwifiex_ie_types_header *)chan_info->tlv_buffer; 342 343 while (tlv_buf_left >= (int)sizeof(struct mwifiex_ie_types_header)) { 344 tlv_type = le16_to_cpu(tlv->type); 345 tlv_len = le16_to_cpu(tlv->len); 346 if ((sizeof(struct mwifiex_ie_types_header) + tlv_len) > 347 tlv_buf_left) { 348 mwifiex_dbg(adapter, ERROR, "wrong tlv: tlvLen=%d,\t" 349 "tlvBufLeft=%d\n", tlv_len, tlv_buf_left); 350 break; 351 } 352 if (tlv_type != TLV_TYPE_MC_GROUP_INFO) { 353 mwifiex_dbg(adapter, ERROR, "wrong tlv type: 0x%x\n", 354 tlv_type); 355 break; 356 } 357 358 grp_info = (struct mwifiex_ie_types_mc_group_info *)tlv; 359 intf_num = grp_info->intf_num; 360 for (i = 0; i < intf_num; i++) { 361 bss_type = grp_info->bss_type_numlist[i] >> 4; 362 bss_num = grp_info->bss_type_numlist[i] & BSS_NUM_MASK; 363 intf_priv = mwifiex_get_priv_by_id(adapter, bss_num, 364 bss_type); 365 if (!intf_priv) { 366 mwifiex_dbg(adapter, ERROR, 367 "Invalid bss_type bss_num\t" 368 "in multi channel event\n"); 369 continue; 370 } 371 if (adapter->iface_type == MWIFIEX_USB) { 372 u8 ep; 373 374 ep = grp_info->hid_num.usb_ep_num; 375 if (ep == MWIFIEX_USB_EP_DATA || 376 ep == MWIFIEX_USB_EP_DATA_CH2) 377 intf_priv->usb_port = ep; 378 } 379 } 380 381 tlv_buf_left -= sizeof(struct mwifiex_ie_types_header) + 382 tlv_len; 383 tlv = (void *)((u8 *)tlv + tlv_len + 384 sizeof(struct mwifiex_ie_types_header)); 385 } 386 387 if (adapter->iface_type == MWIFIEX_USB) { 388 adapter->tx_lock_flag = true; 389 adapter->usb_mc_setup = true; 390 mwifiex_multi_chan_resync(adapter); 391 } 392 } 393 394 void mwifiex_process_tx_pause_event(struct mwifiex_private *priv, 395 struct sk_buff *event_skb) 396 { 397 struct mwifiex_ie_types_header *tlv; 398 u16 tlv_type, tlv_len; 399 int tlv_buf_left; 400 401 if (!priv->media_connected) { 402 mwifiex_dbg(priv->adapter, ERROR, 403 "tx_pause event while disconnected; bss_role=%d\n", 404 priv->bss_role); 405 return; 406 } 407 408 tlv_buf_left = event_skb->len - sizeof(u32); 409 tlv = (void *)event_skb->data + sizeof(u32); 410 411 while (tlv_buf_left >= (int)sizeof(struct mwifiex_ie_types_header)) { 412 tlv_type = le16_to_cpu(tlv->type); 413 tlv_len = le16_to_cpu(tlv->len); 414 if ((sizeof(struct mwifiex_ie_types_header) + tlv_len) > 415 tlv_buf_left) { 416 mwifiex_dbg(priv->adapter, ERROR, 417 "wrong tlv: tlvLen=%d, tlvBufLeft=%d\n", 418 tlv_len, tlv_buf_left); 419 break; 420 } 421 if (tlv_type == TLV_TYPE_TX_PAUSE) { 422 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) 423 mwifiex_process_sta_tx_pause(priv, tlv); 424 else 425 mwifiex_process_uap_tx_pause(priv, tlv); 426 } 427 428 tlv_buf_left -= sizeof(struct mwifiex_ie_types_header) + 429 tlv_len; 430 tlv = (void *)((u8 *)tlv + tlv_len + 431 sizeof(struct mwifiex_ie_types_header)); 432 } 433 434 } 435 436 /* 437 * This function handles coex events generated by firmware 438 */ 439 void mwifiex_bt_coex_wlan_param_update_event(struct mwifiex_private *priv, 440 struct sk_buff *event_skb) 441 { 442 struct mwifiex_adapter *adapter = priv->adapter; 443 struct mwifiex_ie_types_header *tlv; 444 struct mwifiex_ie_types_btcoex_aggr_win_size *winsizetlv; 445 struct mwifiex_ie_types_btcoex_scan_time *scantlv; 446 s32 len = event_skb->len - sizeof(u32); 447 u8 *cur_ptr = event_skb->data + sizeof(u32); 448 u16 tlv_type, tlv_len; 449 450 while (len >= sizeof(struct mwifiex_ie_types_header)) { 451 tlv = (struct mwifiex_ie_types_header *)cur_ptr; 452 tlv_len = le16_to_cpu(tlv->len); 453 tlv_type = le16_to_cpu(tlv->type); 454 455 if ((tlv_len + sizeof(struct mwifiex_ie_types_header)) > len) 456 break; 457 switch (tlv_type) { 458 case TLV_BTCOEX_WL_AGGR_WINSIZE: 459 winsizetlv = 460 (struct mwifiex_ie_types_btcoex_aggr_win_size *)tlv; 461 adapter->coex_win_size = winsizetlv->coex_win_size; 462 adapter->coex_tx_win_size = 463 winsizetlv->tx_win_size; 464 adapter->coex_rx_win_size = 465 winsizetlv->rx_win_size; 466 mwifiex_coex_ampdu_rxwinsize(adapter); 467 mwifiex_update_ampdu_txwinsize(adapter); 468 break; 469 470 case TLV_BTCOEX_WL_SCANTIME: 471 scantlv = 472 (struct mwifiex_ie_types_btcoex_scan_time *)tlv; 473 adapter->coex_scan = scantlv->coex_scan; 474 adapter->coex_min_scan_time = scantlv->min_scan_time; 475 adapter->coex_max_scan_time = scantlv->max_scan_time; 476 break; 477 478 default: 479 break; 480 } 481 482 len -= tlv_len + sizeof(struct mwifiex_ie_types_header); 483 cur_ptr += tlv_len + 484 sizeof(struct mwifiex_ie_types_header); 485 } 486 487 dev_dbg(adapter->dev, "coex_scan=%d min_scan=%d coex_win=%d, tx_win=%d rx_win=%d\n", 488 adapter->coex_scan, adapter->coex_min_scan_time, 489 adapter->coex_win_size, adapter->coex_tx_win_size, 490 adapter->coex_rx_win_size); 491 } 492 493 /* 494 * This function handles events generated by firmware. 495 * 496 * This is a generic function and handles all events. 497 * 498 * Event specific routines are called by this function based 499 * upon the generated event cause. 500 * 501 * For the following events, the function just forwards them to upper 502 * layers, optionally recording the change - 503 * - EVENT_LINK_SENSED 504 * - EVENT_MIC_ERR_UNICAST 505 * - EVENT_MIC_ERR_MULTICAST 506 * - EVENT_PORT_RELEASE 507 * - EVENT_RSSI_LOW 508 * - EVENT_SNR_LOW 509 * - EVENT_MAX_FAIL 510 * - EVENT_RSSI_HIGH 511 * - EVENT_SNR_HIGH 512 * - EVENT_DATA_RSSI_LOW 513 * - EVENT_DATA_SNR_LOW 514 * - EVENT_DATA_RSSI_HIGH 515 * - EVENT_DATA_SNR_HIGH 516 * - EVENT_LINK_QUALITY 517 * - EVENT_PRE_BEACON_LOST 518 * - EVENT_IBSS_COALESCED 519 * - EVENT_WEP_ICV_ERR 520 * - EVENT_BW_CHANGE 521 * - EVENT_HOSTWAKE_STAIE 522 * 523 * For the following events, no action is taken - 524 * - EVENT_MIB_CHANGED 525 * - EVENT_INIT_DONE 526 * - EVENT_DUMMY_HOST_WAKEUP_SIGNAL 527 * 528 * Rest of the supported events requires driver handling - 529 * - EVENT_DEAUTHENTICATED 530 * - EVENT_DISASSOCIATED 531 * - EVENT_LINK_LOST 532 * - EVENT_PS_SLEEP 533 * - EVENT_PS_AWAKE 534 * - EVENT_DEEP_SLEEP_AWAKE 535 * - EVENT_HS_ACT_REQ 536 * - EVENT_ADHOC_BCN_LOST 537 * - EVENT_BG_SCAN_REPORT 538 * - EVENT_WMM_STATUS_CHANGE 539 * - EVENT_ADDBA 540 * - EVENT_DELBA 541 * - EVENT_BA_STREAM_TIEMOUT 542 * - EVENT_AMSDU_AGGR_CTRL 543 */ 544 int mwifiex_process_sta_event(struct mwifiex_private *priv) 545 { 546 struct mwifiex_adapter *adapter = priv->adapter; 547 int ret = 0; 548 u32 eventcause = adapter->event_cause; 549 u16 ctrl, reason_code; 550 551 switch (eventcause) { 552 case EVENT_DUMMY_HOST_WAKEUP_SIGNAL: 553 mwifiex_dbg(adapter, ERROR, 554 "invalid EVENT: DUMMY_HOST_WAKEUP_SIGNAL, ignore it\n"); 555 break; 556 case EVENT_LINK_SENSED: 557 mwifiex_dbg(adapter, EVENT, "event: LINK_SENSED\n"); 558 if (!netif_carrier_ok(priv->netdev)) 559 netif_carrier_on(priv->netdev); 560 mwifiex_wake_up_net_dev_queue(priv->netdev, adapter); 561 break; 562 563 case EVENT_DEAUTHENTICATED: 564 mwifiex_dbg(adapter, EVENT, "event: Deauthenticated\n"); 565 if (priv->wps.session_enable) { 566 mwifiex_dbg(adapter, INFO, 567 "info: receive deauth event in wps session\n"); 568 break; 569 } 570 adapter->dbg.num_event_deauth++; 571 if (priv->media_connected) { 572 reason_code = 573 le16_to_cpu(*(__le16 *)adapter->event_body); 574 mwifiex_reset_connect_state(priv, reason_code); 575 } 576 break; 577 578 case EVENT_DISASSOCIATED: 579 mwifiex_dbg(adapter, EVENT, "event: Disassociated\n"); 580 if (priv->wps.session_enable) { 581 mwifiex_dbg(adapter, INFO, 582 "info: receive disassoc event in wps session\n"); 583 break; 584 } 585 adapter->dbg.num_event_disassoc++; 586 if (priv->media_connected) { 587 reason_code = 588 le16_to_cpu(*(__le16 *)adapter->event_body); 589 mwifiex_reset_connect_state(priv, reason_code); 590 } 591 break; 592 593 case EVENT_LINK_LOST: 594 mwifiex_dbg(adapter, EVENT, "event: Link lost\n"); 595 adapter->dbg.num_event_link_lost++; 596 if (priv->media_connected) { 597 reason_code = 598 le16_to_cpu(*(__le16 *)adapter->event_body); 599 mwifiex_reset_connect_state(priv, reason_code); 600 } 601 break; 602 603 case EVENT_PS_SLEEP: 604 mwifiex_dbg(adapter, EVENT, "info: EVENT: SLEEP\n"); 605 606 adapter->ps_state = PS_STATE_PRE_SLEEP; 607 608 mwifiex_check_ps_cond(adapter); 609 break; 610 611 case EVENT_PS_AWAKE: 612 mwifiex_dbg(adapter, EVENT, "info: EVENT: AWAKE\n"); 613 if (!adapter->pps_uapsd_mode && 614 (priv->port_open || 615 (priv->bss_mode == NL80211_IFTYPE_ADHOC)) && 616 priv->media_connected && adapter->sleep_period.period) { 617 adapter->pps_uapsd_mode = true; 618 mwifiex_dbg(adapter, EVENT, 619 "event: PPS/UAPSD mode activated\n"); 620 } 621 adapter->tx_lock_flag = false; 622 if (adapter->pps_uapsd_mode && adapter->gen_null_pkt) { 623 if (mwifiex_check_last_packet_indication(priv)) { 624 if (adapter->data_sent || 625 (adapter->if_ops.is_port_ready && 626 !adapter->if_ops.is_port_ready(priv))) { 627 adapter->ps_state = PS_STATE_AWAKE; 628 adapter->pm_wakeup_card_req = false; 629 adapter->pm_wakeup_fw_try = false; 630 del_timer(&adapter->wakeup_timer); 631 break; 632 } 633 if (!mwifiex_send_null_packet 634 (priv, 635 MWIFIEX_TxPD_POWER_MGMT_NULL_PACKET | 636 MWIFIEX_TxPD_POWER_MGMT_LAST_PACKET)) 637 adapter->ps_state = 638 PS_STATE_SLEEP; 639 return 0; 640 } 641 } 642 adapter->ps_state = PS_STATE_AWAKE; 643 adapter->pm_wakeup_card_req = false; 644 adapter->pm_wakeup_fw_try = false; 645 del_timer(&adapter->wakeup_timer); 646 647 break; 648 649 case EVENT_DEEP_SLEEP_AWAKE: 650 adapter->if_ops.wakeup_complete(adapter); 651 mwifiex_dbg(adapter, EVENT, "event: DS_AWAKE\n"); 652 if (adapter->is_deep_sleep) 653 adapter->is_deep_sleep = false; 654 break; 655 656 case EVENT_HS_ACT_REQ: 657 mwifiex_dbg(adapter, EVENT, "event: HS_ACT_REQ\n"); 658 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_HS_CFG_ENH, 659 0, 0, NULL, false); 660 break; 661 662 case EVENT_MIC_ERR_UNICAST: 663 mwifiex_dbg(adapter, EVENT, "event: UNICAST MIC ERROR\n"); 664 cfg80211_michael_mic_failure(priv->netdev, priv->cfg_bssid, 665 NL80211_KEYTYPE_PAIRWISE, 666 -1, NULL, GFP_KERNEL); 667 break; 668 669 case EVENT_MIC_ERR_MULTICAST: 670 mwifiex_dbg(adapter, EVENT, "event: MULTICAST MIC ERROR\n"); 671 cfg80211_michael_mic_failure(priv->netdev, priv->cfg_bssid, 672 NL80211_KEYTYPE_GROUP, 673 -1, NULL, GFP_KERNEL); 674 break; 675 case EVENT_MIB_CHANGED: 676 case EVENT_INIT_DONE: 677 break; 678 679 case EVENT_ADHOC_BCN_LOST: 680 mwifiex_dbg(adapter, EVENT, "event: ADHOC_BCN_LOST\n"); 681 priv->adhoc_is_link_sensed = false; 682 mwifiex_clean_txrx(priv); 683 mwifiex_stop_net_dev_queue(priv->netdev, adapter); 684 if (netif_carrier_ok(priv->netdev)) 685 netif_carrier_off(priv->netdev); 686 break; 687 688 case EVENT_BG_SCAN_REPORT: 689 mwifiex_dbg(adapter, EVENT, "event: BGS_REPORT\n"); 690 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_BG_SCAN_QUERY, 691 HostCmd_ACT_GEN_GET, 0, NULL, false); 692 break; 693 694 case EVENT_BG_SCAN_STOPPED: 695 dev_dbg(adapter->dev, "event: BGS_STOPPED\n"); 696 cfg80211_sched_scan_stopped(priv->wdev.wiphy); 697 if (priv->sched_scanning) 698 priv->sched_scanning = false; 699 break; 700 701 case EVENT_PORT_RELEASE: 702 mwifiex_dbg(adapter, EVENT, "event: PORT RELEASE\n"); 703 priv->port_open = true; 704 break; 705 706 case EVENT_EXT_SCAN_REPORT: 707 mwifiex_dbg(adapter, EVENT, "event: EXT_SCAN Report\n"); 708 if (adapter->ext_scan) 709 ret = mwifiex_handle_event_ext_scan_report(priv, 710 adapter->event_skb->data); 711 712 break; 713 714 case EVENT_WMM_STATUS_CHANGE: 715 mwifiex_dbg(adapter, EVENT, "event: WMM status changed\n"); 716 ret = mwifiex_send_cmd(priv, HostCmd_CMD_WMM_GET_STATUS, 717 0, 0, NULL, false); 718 break; 719 720 case EVENT_RSSI_LOW: 721 cfg80211_cqm_rssi_notify(priv->netdev, 722 NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW, 723 GFP_KERNEL); 724 mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO, 725 HostCmd_ACT_GEN_GET, 0, NULL, false); 726 priv->subsc_evt_rssi_state = RSSI_LOW_RECVD; 727 mwifiex_dbg(adapter, EVENT, "event: Beacon RSSI_LOW\n"); 728 break; 729 case EVENT_SNR_LOW: 730 mwifiex_dbg(adapter, EVENT, "event: Beacon SNR_LOW\n"); 731 break; 732 case EVENT_MAX_FAIL: 733 mwifiex_dbg(adapter, EVENT, "event: MAX_FAIL\n"); 734 break; 735 case EVENT_RSSI_HIGH: 736 cfg80211_cqm_rssi_notify(priv->netdev, 737 NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH, 738 GFP_KERNEL); 739 mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO, 740 HostCmd_ACT_GEN_GET, 0, NULL, false); 741 priv->subsc_evt_rssi_state = RSSI_HIGH_RECVD; 742 mwifiex_dbg(adapter, EVENT, "event: Beacon RSSI_HIGH\n"); 743 break; 744 case EVENT_SNR_HIGH: 745 mwifiex_dbg(adapter, EVENT, "event: Beacon SNR_HIGH\n"); 746 break; 747 case EVENT_DATA_RSSI_LOW: 748 mwifiex_dbg(adapter, EVENT, "event: Data RSSI_LOW\n"); 749 break; 750 case EVENT_DATA_SNR_LOW: 751 mwifiex_dbg(adapter, EVENT, "event: Data SNR_LOW\n"); 752 break; 753 case EVENT_DATA_RSSI_HIGH: 754 mwifiex_dbg(adapter, EVENT, "event: Data RSSI_HIGH\n"); 755 break; 756 case EVENT_DATA_SNR_HIGH: 757 mwifiex_dbg(adapter, EVENT, "event: Data SNR_HIGH\n"); 758 break; 759 case EVENT_LINK_QUALITY: 760 mwifiex_dbg(adapter, EVENT, "event: Link Quality\n"); 761 break; 762 case EVENT_PRE_BEACON_LOST: 763 mwifiex_dbg(adapter, EVENT, "event: Pre-Beacon Lost\n"); 764 break; 765 case EVENT_IBSS_COALESCED: 766 mwifiex_dbg(adapter, EVENT, "event: IBSS_COALESCED\n"); 767 ret = mwifiex_send_cmd(priv, 768 HostCmd_CMD_802_11_IBSS_COALESCING_STATUS, 769 HostCmd_ACT_GEN_GET, 0, NULL, false); 770 break; 771 case EVENT_ADDBA: 772 mwifiex_dbg(adapter, EVENT, "event: ADDBA Request\n"); 773 mwifiex_send_cmd(priv, HostCmd_CMD_11N_ADDBA_RSP, 774 HostCmd_ACT_GEN_SET, 0, 775 adapter->event_body, false); 776 break; 777 case EVENT_DELBA: 778 mwifiex_dbg(adapter, EVENT, "event: DELBA Request\n"); 779 mwifiex_11n_delete_ba_stream(priv, adapter->event_body); 780 break; 781 case EVENT_BA_STREAM_TIEMOUT: 782 mwifiex_dbg(adapter, EVENT, "event: BA Stream timeout\n"); 783 mwifiex_11n_ba_stream_timeout(priv, 784 (struct host_cmd_ds_11n_batimeout 785 *) 786 adapter->event_body); 787 break; 788 case EVENT_AMSDU_AGGR_CTRL: 789 ctrl = le16_to_cpu(*(__le16 *)adapter->event_body); 790 mwifiex_dbg(adapter, EVENT, 791 "event: AMSDU_AGGR_CTRL %d\n", ctrl); 792 793 adapter->tx_buf_size = 794 min_t(u16, adapter->curr_tx_buf_size, ctrl); 795 mwifiex_dbg(adapter, EVENT, "event: tx_buf_size %d\n", 796 adapter->tx_buf_size); 797 break; 798 799 case EVENT_WEP_ICV_ERR: 800 mwifiex_dbg(adapter, EVENT, "event: WEP ICV error\n"); 801 break; 802 803 case EVENT_BW_CHANGE: 804 mwifiex_dbg(adapter, EVENT, "event: BW Change\n"); 805 break; 806 807 case EVENT_HOSTWAKE_STAIE: 808 mwifiex_dbg(adapter, EVENT, 809 "event: HOSTWAKE_STAIE %d\n", eventcause); 810 break; 811 812 case EVENT_REMAIN_ON_CHAN_EXPIRED: 813 mwifiex_dbg(adapter, EVENT, 814 "event: Remain on channel expired\n"); 815 cfg80211_remain_on_channel_expired(&priv->wdev, 816 priv->roc_cfg.cookie, 817 &priv->roc_cfg.chan, 818 GFP_ATOMIC); 819 820 memset(&priv->roc_cfg, 0x00, sizeof(struct mwifiex_roc_cfg)); 821 822 break; 823 824 case EVENT_CHANNEL_SWITCH_ANN: 825 mwifiex_dbg(adapter, EVENT, "event: Channel Switch Announcement\n"); 826 priv->csa_expire_time = 827 jiffies + msecs_to_jiffies(DFS_CHAN_MOVE_TIME); 828 priv->csa_chan = priv->curr_bss_params.bss_descriptor.channel; 829 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_DEAUTHENTICATE, 830 HostCmd_ACT_GEN_SET, 0, 831 priv->curr_bss_params.bss_descriptor.mac_address, 832 false); 833 break; 834 835 case EVENT_TDLS_GENERIC_EVENT: 836 ret = mwifiex_parse_tdls_event(priv, adapter->event_skb); 837 break; 838 839 case EVENT_TX_DATA_PAUSE: 840 mwifiex_dbg(adapter, EVENT, "event: TX DATA PAUSE\n"); 841 mwifiex_process_tx_pause_event(priv, adapter->event_skb); 842 break; 843 844 case EVENT_MULTI_CHAN_INFO: 845 mwifiex_dbg(adapter, EVENT, "event: multi-chan info\n"); 846 mwifiex_process_multi_chan_event(priv, adapter->event_skb); 847 break; 848 849 case EVENT_TX_STATUS_REPORT: 850 mwifiex_dbg(adapter, EVENT, "event: TX_STATUS Report\n"); 851 mwifiex_parse_tx_status_event(priv, adapter->event_body); 852 break; 853 854 case EVENT_CHANNEL_REPORT_RDY: 855 mwifiex_dbg(adapter, EVENT, "event: Channel Report\n"); 856 ret = mwifiex_11h_handle_chanrpt_ready(priv, 857 adapter->event_skb); 858 break; 859 case EVENT_RADAR_DETECTED: 860 mwifiex_dbg(adapter, EVENT, "event: Radar detected\n"); 861 ret = mwifiex_11h_handle_radar_detected(priv, 862 adapter->event_skb); 863 break; 864 case EVENT_BT_COEX_WLAN_PARA_CHANGE: 865 dev_dbg(adapter->dev, "EVENT: BT coex wlan param update\n"); 866 mwifiex_bt_coex_wlan_param_update_event(priv, 867 adapter->event_skb); 868 break; 869 default: 870 mwifiex_dbg(adapter, ERROR, "event: unknown event id: %#x\n", 871 eventcause); 872 break; 873 } 874 875 return ret; 876 } 877