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 #define MWIFIEX_IBSS_CONNECT_EVT_FIX_SIZE 12
29
mwifiex_check_ibss_peer_capabilties(struct mwifiex_private * priv,struct mwifiex_sta_node * sta_ptr,struct sk_buff * event)30 static int mwifiex_check_ibss_peer_capabilties(struct mwifiex_private *priv,
31 struct mwifiex_sta_node *sta_ptr,
32 struct sk_buff *event)
33 {
34 int evt_len, ele_len;
35 u8 *curr;
36 struct ieee_types_header *ele_hdr;
37 struct mwifiex_ie_types_mgmt_frame *tlv_mgmt_frame;
38 const struct ieee80211_ht_cap *ht_cap;
39 const struct ieee80211_vht_cap *vht_cap;
40
41 skb_pull(event, MWIFIEX_IBSS_CONNECT_EVT_FIX_SIZE);
42 evt_len = event->len;
43 curr = event->data;
44
45 mwifiex_dbg_dump(priv->adapter, EVT_D, "ibss peer capabilties:",
46 event->data, event->len);
47
48 skb_push(event, MWIFIEX_IBSS_CONNECT_EVT_FIX_SIZE);
49
50 tlv_mgmt_frame = (void *)curr;
51 if (evt_len >= sizeof(*tlv_mgmt_frame) &&
52 le16_to_cpu(tlv_mgmt_frame->header.type) ==
53 TLV_TYPE_UAP_MGMT_FRAME) {
54 /* Locate curr pointer to the start of beacon tlv,
55 * timestamp 8 bytes, beacon intervel 2 bytes,
56 * capability info 2 bytes, totally 12 byte beacon header
57 */
58 evt_len = le16_to_cpu(tlv_mgmt_frame->header.len);
59 curr += (sizeof(*tlv_mgmt_frame) + 12);
60 } else {
61 mwifiex_dbg(priv->adapter, MSG,
62 "management frame tlv not found!\n");
63 return 0;
64 }
65
66 while (evt_len >= sizeof(*ele_hdr)) {
67 ele_hdr = (struct ieee_types_header *)curr;
68 ele_len = ele_hdr->len;
69
70 if (evt_len < ele_len + sizeof(*ele_hdr))
71 break;
72
73 switch (ele_hdr->element_id) {
74 case WLAN_EID_HT_CAPABILITY:
75 sta_ptr->is_11n_enabled = true;
76 ht_cap = (void *)(ele_hdr + 2);
77 sta_ptr->max_amsdu = le16_to_cpu(ht_cap->cap_info) &
78 IEEE80211_HT_CAP_MAX_AMSDU ?
79 MWIFIEX_TX_DATA_BUF_SIZE_8K :
80 MWIFIEX_TX_DATA_BUF_SIZE_4K;
81 mwifiex_dbg(priv->adapter, INFO,
82 "11n enabled!, max_amsdu : %d\n",
83 sta_ptr->max_amsdu);
84 break;
85
86 case WLAN_EID_VHT_CAPABILITY:
87 sta_ptr->is_11ac_enabled = true;
88 vht_cap = (void *)(ele_hdr + 2);
89 /* check VHT MAXMPDU capability */
90 switch (le32_to_cpu(vht_cap->vht_cap_info) & 0x3) {
91 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454:
92 sta_ptr->max_amsdu =
93 MWIFIEX_TX_DATA_BUF_SIZE_12K;
94 break;
95 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991:
96 sta_ptr->max_amsdu =
97 MWIFIEX_TX_DATA_BUF_SIZE_8K;
98 break;
99 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895:
100 sta_ptr->max_amsdu =
101 MWIFIEX_TX_DATA_BUF_SIZE_4K;
102 default:
103 break;
104 }
105
106 mwifiex_dbg(priv->adapter, INFO,
107 "11ac enabled!, max_amsdu : %d\n",
108 sta_ptr->max_amsdu);
109 break;
110 default:
111 break;
112 }
113
114 curr += (ele_len + sizeof(*ele_hdr));
115 evt_len -= (ele_len + sizeof(*ele_hdr));
116 }
117
118 return 0;
119 }
120
121 /*
122 * This function resets the connection state.
123 *
124 * The function is invoked after receiving a disconnect event from firmware,
125 * and performs the following actions -
126 * - Set media status to disconnected
127 * - Clean up Tx and Rx packets
128 * - Resets SNR/NF/RSSI value in driver
129 * - Resets security configurations in driver
130 * - Enables auto data rate
131 * - Saves the previous SSID and BSSID so that they can
132 * be used for re-association, if required
133 * - Erases current SSID and BSSID information
134 * - Sends a disconnect event to upper layers/applications.
135 */
mwifiex_reset_connect_state(struct mwifiex_private * priv,u16 reason_code,bool from_ap)136 void mwifiex_reset_connect_state(struct mwifiex_private *priv, u16 reason_code,
137 bool from_ap)
138 {
139 struct mwifiex_adapter *adapter = priv->adapter;
140
141 if (!priv->media_connected)
142 return;
143
144 mwifiex_dbg(adapter, INFO,
145 "info: handles disconnect event\n");
146
147 priv->media_connected = false;
148
149 priv->scan_block = false;
150 priv->port_open = false;
151
152 if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
153 ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info)) {
154 mwifiex_disable_all_tdls_links(priv);
155
156 if (priv->adapter->auto_tdls)
157 mwifiex_clean_auto_tdls(priv);
158 }
159
160 /* Free Tx and Rx packets, report disconnect to upper layer */
161 mwifiex_clean_txrx(priv);
162
163 /* Reset SNR/NF/RSSI values */
164 priv->data_rssi_last = 0;
165 priv->data_nf_last = 0;
166 priv->data_rssi_avg = 0;
167 priv->data_nf_avg = 0;
168 priv->bcn_rssi_last = 0;
169 priv->bcn_nf_last = 0;
170 priv->bcn_rssi_avg = 0;
171 priv->bcn_nf_avg = 0;
172 priv->rxpd_rate = 0;
173 priv->rxpd_htinfo = 0;
174 priv->sec_info.wpa_enabled = false;
175 priv->sec_info.wpa2_enabled = false;
176 priv->wpa_ie_len = 0;
177
178 priv->sec_info.wapi_enabled = false;
179 priv->wapi_ie_len = 0;
180 priv->sec_info.wapi_key_on = false;
181
182 priv->sec_info.encryption_mode = 0;
183
184 /* Enable auto data rate */
185 priv->is_data_rate_auto = true;
186 priv->data_rate = 0;
187
188 priv->assoc_resp_ht_param = 0;
189 priv->ht_param_present = false;
190
191 if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA ||
192 GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) && priv->hist_data)
193 mwifiex_hist_data_reset(priv);
194
195 if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
196 priv->adhoc_state = ADHOC_IDLE;
197 priv->adhoc_is_link_sensed = false;
198 }
199
200 /*
201 * Memorize the previous SSID and BSSID so
202 * it could be used for re-assoc
203 */
204
205 mwifiex_dbg(adapter, INFO,
206 "info: previous SSID=%s, SSID len=%u\n",
207 priv->prev_ssid.ssid, priv->prev_ssid.ssid_len);
208
209 mwifiex_dbg(adapter, INFO,
210 "info: current SSID=%s, SSID len=%u\n",
211 priv->curr_bss_params.bss_descriptor.ssid.ssid,
212 priv->curr_bss_params.bss_descriptor.ssid.ssid_len);
213
214 memcpy(&priv->prev_ssid,
215 &priv->curr_bss_params.bss_descriptor.ssid,
216 sizeof(struct cfg80211_ssid));
217
218 memcpy(priv->prev_bssid,
219 priv->curr_bss_params.bss_descriptor.mac_address, ETH_ALEN);
220
221 /* Need to erase the current SSID and BSSID info */
222 memset(&priv->curr_bss_params, 0x00, sizeof(priv->curr_bss_params));
223
224 adapter->tx_lock_flag = false;
225 adapter->pps_uapsd_mode = false;
226
227 if (test_bit(MWIFIEX_IS_CMD_TIMEDOUT, &adapter->work_flags) &&
228 adapter->curr_cmd)
229 return;
230 priv->media_connected = false;
231 mwifiex_dbg(adapter, MSG,
232 "info: successfully disconnected from %pM: reason code %d\n",
233 priv->cfg_bssid, reason_code);
234 if (priv->bss_mode == NL80211_IFTYPE_STATION ||
235 priv->bss_mode == NL80211_IFTYPE_P2P_CLIENT) {
236 cfg80211_disconnected(priv->netdev, reason_code, NULL, 0,
237 !from_ap, GFP_KERNEL);
238 }
239 eth_zero_addr(priv->cfg_bssid);
240
241 mwifiex_stop_net_dev_queue(priv->netdev, adapter);
242 if (netif_carrier_ok(priv->netdev))
243 netif_carrier_off(priv->netdev);
244
245 if (!ISSUPP_FIRMWARE_SUPPLICANT(priv->adapter->fw_cap_info))
246 return;
247
248 mwifiex_send_cmd(priv, HostCmd_CMD_GTK_REKEY_OFFLOAD_CFG,
249 HostCmd_ACT_GEN_REMOVE, 0, NULL, false);
250 }
251
mwifiex_parse_tdls_event(struct mwifiex_private * priv,struct sk_buff * event_skb)252 static int mwifiex_parse_tdls_event(struct mwifiex_private *priv,
253 struct sk_buff *event_skb)
254 {
255 int ret = 0;
256 struct mwifiex_adapter *adapter = priv->adapter;
257 struct mwifiex_sta_node *sta_ptr;
258 struct mwifiex_tdls_generic_event *tdls_evt =
259 (void *)event_skb->data + sizeof(adapter->event_cause);
260 u8 *mac = tdls_evt->peer_mac;
261
262 /* reserved 2 bytes are not mandatory in tdls event */
263 if (event_skb->len < (sizeof(struct mwifiex_tdls_generic_event) -
264 sizeof(u16) - sizeof(adapter->event_cause))) {
265 mwifiex_dbg(adapter, ERROR, "Invalid event length!\n");
266 return -1;
267 }
268
269 sta_ptr = mwifiex_get_sta_entry(priv, tdls_evt->peer_mac);
270 if (!sta_ptr) {
271 mwifiex_dbg(adapter, ERROR, "cannot get sta entry!\n");
272 return -1;
273 }
274
275 switch (le16_to_cpu(tdls_evt->type)) {
276 case TDLS_EVENT_LINK_TEAR_DOWN:
277 cfg80211_tdls_oper_request(priv->netdev,
278 tdls_evt->peer_mac,
279 NL80211_TDLS_TEARDOWN,
280 le16_to_cpu(tdls_evt->u.reason_code),
281 GFP_KERNEL);
282 break;
283 case TDLS_EVENT_CHAN_SWITCH_RESULT:
284 mwifiex_dbg(adapter, EVENT, "tdls channel switch result :\n");
285 mwifiex_dbg(adapter, EVENT,
286 "status=0x%x, reason=0x%x cur_chan=%d\n",
287 tdls_evt->u.switch_result.status,
288 tdls_evt->u.switch_result.reason,
289 tdls_evt->u.switch_result.cur_chan);
290
291 /* tdls channel switch failed */
292 if (tdls_evt->u.switch_result.status != 0) {
293 switch (tdls_evt->u.switch_result.cur_chan) {
294 case TDLS_BASE_CHANNEL:
295 sta_ptr->tdls_status = TDLS_IN_BASE_CHAN;
296 break;
297 case TDLS_OFF_CHANNEL:
298 sta_ptr->tdls_status = TDLS_IN_OFF_CHAN;
299 break;
300 default:
301 break;
302 }
303 return ret;
304 }
305
306 /* tdls channel switch success */
307 switch (tdls_evt->u.switch_result.cur_chan) {
308 case TDLS_BASE_CHANNEL:
309 if (sta_ptr->tdls_status == TDLS_IN_BASE_CHAN)
310 break;
311 mwifiex_update_ralist_tx_pause_in_tdls_cs(priv, mac,
312 false);
313 sta_ptr->tdls_status = TDLS_IN_BASE_CHAN;
314 break;
315 case TDLS_OFF_CHANNEL:
316 if (sta_ptr->tdls_status == TDLS_IN_OFF_CHAN)
317 break;
318 mwifiex_update_ralist_tx_pause_in_tdls_cs(priv, mac,
319 true);
320 sta_ptr->tdls_status = TDLS_IN_OFF_CHAN;
321 break;
322 default:
323 break;
324 }
325
326 break;
327 case TDLS_EVENT_START_CHAN_SWITCH:
328 mwifiex_dbg(adapter, EVENT, "tdls start channel switch...\n");
329 sta_ptr->tdls_status = TDLS_CHAN_SWITCHING;
330 break;
331 case TDLS_EVENT_CHAN_SWITCH_STOPPED:
332 mwifiex_dbg(adapter, EVENT,
333 "tdls chan switch stopped, reason=%d\n",
334 tdls_evt->u.cs_stop_reason);
335 break;
336 default:
337 break;
338 }
339
340 return ret;
341 }
342
mwifiex_process_uap_tx_pause(struct mwifiex_private * priv,struct mwifiex_ie_types_header * tlv)343 static void mwifiex_process_uap_tx_pause(struct mwifiex_private *priv,
344 struct mwifiex_ie_types_header *tlv)
345 {
346 struct mwifiex_tx_pause_tlv *tp;
347 struct mwifiex_sta_node *sta_ptr;
348 unsigned long flags;
349
350 tp = (void *)tlv;
351 mwifiex_dbg(priv->adapter, EVENT,
352 "uap tx_pause: %pM pause=%d, pkts=%d\n",
353 tp->peermac, tp->tx_pause,
354 tp->pkt_cnt);
355
356 if (ether_addr_equal(tp->peermac, priv->netdev->dev_addr)) {
357 if (tp->tx_pause)
358 priv->port_open = false;
359 else
360 priv->port_open = true;
361 } else if (is_multicast_ether_addr(tp->peermac)) {
362 mwifiex_update_ralist_tx_pause(priv, tp->peermac, tp->tx_pause);
363 } else {
364 spin_lock_irqsave(&priv->sta_list_spinlock, flags);
365 sta_ptr = mwifiex_get_sta_entry(priv, tp->peermac);
366 if (sta_ptr && sta_ptr->tx_pause != tp->tx_pause) {
367 sta_ptr->tx_pause = tp->tx_pause;
368 mwifiex_update_ralist_tx_pause(priv, tp->peermac,
369 tp->tx_pause);
370 }
371 spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
372 }
373 }
374
mwifiex_process_sta_tx_pause(struct mwifiex_private * priv,struct mwifiex_ie_types_header * tlv)375 static void mwifiex_process_sta_tx_pause(struct mwifiex_private *priv,
376 struct mwifiex_ie_types_header *tlv)
377 {
378 struct mwifiex_tx_pause_tlv *tp;
379 struct mwifiex_sta_node *sta_ptr;
380 int status;
381 unsigned long flags;
382
383 tp = (void *)tlv;
384 mwifiex_dbg(priv->adapter, EVENT,
385 "sta tx_pause: %pM pause=%d, pkts=%d\n",
386 tp->peermac, tp->tx_pause,
387 tp->pkt_cnt);
388
389 if (ether_addr_equal(tp->peermac, priv->cfg_bssid)) {
390 if (tp->tx_pause)
391 priv->port_open = false;
392 else
393 priv->port_open = true;
394 } else {
395 if (!ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info))
396 return;
397
398 status = mwifiex_get_tdls_link_status(priv, tp->peermac);
399 if (mwifiex_is_tdls_link_setup(status)) {
400 spin_lock_irqsave(&priv->sta_list_spinlock, flags);
401 sta_ptr = mwifiex_get_sta_entry(priv, tp->peermac);
402 if (sta_ptr && sta_ptr->tx_pause != tp->tx_pause) {
403 sta_ptr->tx_pause = tp->tx_pause;
404 mwifiex_update_ralist_tx_pause(priv,
405 tp->peermac,
406 tp->tx_pause);
407 }
408 spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
409 }
410 }
411 }
412
mwifiex_process_multi_chan_event(struct mwifiex_private * priv,struct sk_buff * event_skb)413 void mwifiex_process_multi_chan_event(struct mwifiex_private *priv,
414 struct sk_buff *event_skb)
415 {
416 struct mwifiex_ie_types_multi_chan_info *chan_info;
417 struct mwifiex_ie_types_mc_group_info *grp_info;
418 struct mwifiex_adapter *adapter = priv->adapter;
419 struct mwifiex_ie_types_header *tlv;
420 u16 tlv_buf_left, tlv_type, tlv_len;
421 int intf_num, bss_type, bss_num, i;
422 struct mwifiex_private *intf_priv;
423
424 tlv_buf_left = event_skb->len - sizeof(u32);
425 chan_info = (void *)event_skb->data + sizeof(u32);
426
427 if (le16_to_cpu(chan_info->header.type) != TLV_TYPE_MULTI_CHAN_INFO ||
428 tlv_buf_left < sizeof(struct mwifiex_ie_types_multi_chan_info)) {
429 mwifiex_dbg(adapter, ERROR,
430 "unknown TLV in chan_info event\n");
431 return;
432 }
433
434 adapter->usb_mc_status = le16_to_cpu(chan_info->status);
435 mwifiex_dbg(adapter, EVENT, "multi chan operation %s\n",
436 adapter->usb_mc_status ? "started" : "over");
437
438 tlv_buf_left -= sizeof(struct mwifiex_ie_types_multi_chan_info);
439 tlv = (struct mwifiex_ie_types_header *)chan_info->tlv_buffer;
440
441 while (tlv_buf_left >= (int)sizeof(struct mwifiex_ie_types_header)) {
442 tlv_type = le16_to_cpu(tlv->type);
443 tlv_len = le16_to_cpu(tlv->len);
444 if ((sizeof(struct mwifiex_ie_types_header) + tlv_len) >
445 tlv_buf_left) {
446 mwifiex_dbg(adapter, ERROR, "wrong tlv: tlvLen=%d,\t"
447 "tlvBufLeft=%d\n", tlv_len, tlv_buf_left);
448 break;
449 }
450 if (tlv_type != TLV_TYPE_MC_GROUP_INFO) {
451 mwifiex_dbg(adapter, ERROR, "wrong tlv type: 0x%x\n",
452 tlv_type);
453 break;
454 }
455
456 grp_info = (struct mwifiex_ie_types_mc_group_info *)tlv;
457 intf_num = grp_info->intf_num;
458 for (i = 0; i < intf_num; i++) {
459 bss_type = grp_info->bss_type_numlist[i] >> 4;
460 bss_num = grp_info->bss_type_numlist[i] & BSS_NUM_MASK;
461 intf_priv = mwifiex_get_priv_by_id(adapter, bss_num,
462 bss_type);
463 if (!intf_priv) {
464 mwifiex_dbg(adapter, ERROR,
465 "Invalid bss_type bss_num\t"
466 "in multi channel event\n");
467 continue;
468 }
469 if (adapter->iface_type == MWIFIEX_USB) {
470 u8 ep;
471
472 ep = grp_info->hid_num.usb_ep_num;
473 if (ep == MWIFIEX_USB_EP_DATA ||
474 ep == MWIFIEX_USB_EP_DATA_CH2)
475 intf_priv->usb_port = ep;
476 }
477 }
478
479 tlv_buf_left -= sizeof(struct mwifiex_ie_types_header) +
480 tlv_len;
481 tlv = (void *)((u8 *)tlv + tlv_len +
482 sizeof(struct mwifiex_ie_types_header));
483 }
484
485 if (adapter->iface_type == MWIFIEX_USB) {
486 adapter->tx_lock_flag = true;
487 adapter->usb_mc_setup = true;
488 mwifiex_multi_chan_resync(adapter);
489 }
490 }
491
mwifiex_process_tx_pause_event(struct mwifiex_private * priv,struct sk_buff * event_skb)492 void mwifiex_process_tx_pause_event(struct mwifiex_private *priv,
493 struct sk_buff *event_skb)
494 {
495 struct mwifiex_ie_types_header *tlv;
496 u16 tlv_type, tlv_len;
497 int tlv_buf_left;
498
499 if (!priv->media_connected) {
500 mwifiex_dbg(priv->adapter, ERROR,
501 "tx_pause event while disconnected; bss_role=%d\n",
502 priv->bss_role);
503 return;
504 }
505
506 tlv_buf_left = event_skb->len - sizeof(u32);
507 tlv = (void *)event_skb->data + sizeof(u32);
508
509 while (tlv_buf_left >= (int)sizeof(struct mwifiex_ie_types_header)) {
510 tlv_type = le16_to_cpu(tlv->type);
511 tlv_len = le16_to_cpu(tlv->len);
512 if ((sizeof(struct mwifiex_ie_types_header) + tlv_len) >
513 tlv_buf_left) {
514 mwifiex_dbg(priv->adapter, ERROR,
515 "wrong tlv: tlvLen=%d, tlvBufLeft=%d\n",
516 tlv_len, tlv_buf_left);
517 break;
518 }
519 if (tlv_type == TLV_TYPE_TX_PAUSE) {
520 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA)
521 mwifiex_process_sta_tx_pause(priv, tlv);
522 else
523 mwifiex_process_uap_tx_pause(priv, tlv);
524 }
525
526 tlv_buf_left -= sizeof(struct mwifiex_ie_types_header) +
527 tlv_len;
528 tlv = (void *)((u8 *)tlv + tlv_len +
529 sizeof(struct mwifiex_ie_types_header));
530 }
531
532 }
533
534 /*
535 * This function handles coex events generated by firmware
536 */
mwifiex_bt_coex_wlan_param_update_event(struct mwifiex_private * priv,struct sk_buff * event_skb)537 void mwifiex_bt_coex_wlan_param_update_event(struct mwifiex_private *priv,
538 struct sk_buff *event_skb)
539 {
540 struct mwifiex_adapter *adapter = priv->adapter;
541 struct mwifiex_ie_types_header *tlv;
542 struct mwifiex_ie_types_btcoex_aggr_win_size *winsizetlv;
543 struct mwifiex_ie_types_btcoex_scan_time *scantlv;
544 s32 len = event_skb->len - sizeof(u32);
545 u8 *cur_ptr = event_skb->data + sizeof(u32);
546 u16 tlv_type, tlv_len;
547
548 while (len >= sizeof(struct mwifiex_ie_types_header)) {
549 tlv = (struct mwifiex_ie_types_header *)cur_ptr;
550 tlv_len = le16_to_cpu(tlv->len);
551 tlv_type = le16_to_cpu(tlv->type);
552
553 if ((tlv_len + sizeof(struct mwifiex_ie_types_header)) > len)
554 break;
555 switch (tlv_type) {
556 case TLV_BTCOEX_WL_AGGR_WINSIZE:
557 winsizetlv =
558 (struct mwifiex_ie_types_btcoex_aggr_win_size *)tlv;
559 adapter->coex_win_size = winsizetlv->coex_win_size;
560 adapter->coex_tx_win_size =
561 winsizetlv->tx_win_size;
562 adapter->coex_rx_win_size =
563 winsizetlv->rx_win_size;
564 mwifiex_coex_ampdu_rxwinsize(adapter);
565 mwifiex_update_ampdu_txwinsize(adapter);
566 break;
567
568 case TLV_BTCOEX_WL_SCANTIME:
569 scantlv =
570 (struct mwifiex_ie_types_btcoex_scan_time *)tlv;
571 adapter->coex_scan = scantlv->coex_scan;
572 adapter->coex_min_scan_time = le16_to_cpu(scantlv->min_scan_time);
573 adapter->coex_max_scan_time = le16_to_cpu(scantlv->max_scan_time);
574 break;
575
576 default:
577 break;
578 }
579
580 len -= tlv_len + sizeof(struct mwifiex_ie_types_header);
581 cur_ptr += tlv_len +
582 sizeof(struct mwifiex_ie_types_header);
583 }
584
585 dev_dbg(adapter->dev, "coex_scan=%d min_scan=%d coex_win=%d, tx_win=%d rx_win=%d\n",
586 adapter->coex_scan, adapter->coex_min_scan_time,
587 adapter->coex_win_size, adapter->coex_tx_win_size,
588 adapter->coex_rx_win_size);
589 }
590
591 static void
mwifiex_fw_dump_info_event(struct mwifiex_private * priv,struct sk_buff * event_skb)592 mwifiex_fw_dump_info_event(struct mwifiex_private *priv,
593 struct sk_buff *event_skb)
594 {
595 struct mwifiex_adapter *adapter = priv->adapter;
596 struct mwifiex_fw_dump_header *fw_dump_hdr =
597 (void *)adapter->event_body;
598
599 if (adapter->iface_type != MWIFIEX_USB) {
600 mwifiex_dbg(adapter, MSG,
601 "event is not on usb interface, ignore it\n");
602 return;
603 }
604
605 if (!adapter->devdump_data) {
606 /* When receive the first event, allocate device dump
607 * buffer, dump driver info.
608 */
609 adapter->devdump_data = vzalloc(MWIFIEX_FW_DUMP_SIZE);
610 if (!adapter->devdump_data) {
611 mwifiex_dbg(adapter, ERROR,
612 "vzalloc devdump data failure!\n");
613 return;
614 }
615
616 mwifiex_drv_info_dump(adapter);
617
618 /* If no proceeded event arrive in 10s, upload device
619 * dump data, this will be useful if the end of
620 * transmission event get lost, in this cornel case,
621 * user would still get partial of the dump.
622 */
623 mod_timer(&adapter->devdump_timer,
624 jiffies + msecs_to_jiffies(MWIFIEX_TIMER_10S));
625 }
626
627 /* Overflow check */
628 if (adapter->devdump_len + event_skb->len >= MWIFIEX_FW_DUMP_SIZE)
629 goto upload_dump;
630
631 memmove(adapter->devdump_data + adapter->devdump_len,
632 adapter->event_skb->data, event_skb->len);
633 adapter->devdump_len += event_skb->len;
634
635 if (le16_to_cpu(fw_dump_hdr->type == FW_DUMP_INFO_ENDED)) {
636 mwifiex_dbg(adapter, MSG,
637 "receive end of transmission flag event!\n");
638 goto upload_dump;
639 }
640 return;
641
642 upload_dump:
643 del_timer_sync(&adapter->devdump_timer);
644 mwifiex_upload_device_dump(adapter);
645 }
646
647 /*
648 * This function handles events generated by firmware.
649 *
650 * This is a generic function and handles all events.
651 *
652 * Event specific routines are called by this function based
653 * upon the generated event cause.
654 *
655 * For the following events, the function just forwards them to upper
656 * layers, optionally recording the change -
657 * - EVENT_LINK_SENSED
658 * - EVENT_MIC_ERR_UNICAST
659 * - EVENT_MIC_ERR_MULTICAST
660 * - EVENT_PORT_RELEASE
661 * - EVENT_RSSI_LOW
662 * - EVENT_SNR_LOW
663 * - EVENT_MAX_FAIL
664 * - EVENT_RSSI_HIGH
665 * - EVENT_SNR_HIGH
666 * - EVENT_DATA_RSSI_LOW
667 * - EVENT_DATA_SNR_LOW
668 * - EVENT_DATA_RSSI_HIGH
669 * - EVENT_DATA_SNR_HIGH
670 * - EVENT_LINK_QUALITY
671 * - EVENT_PRE_BEACON_LOST
672 * - EVENT_IBSS_COALESCED
673 * - EVENT_IBSS_STA_CONNECT
674 * - EVENT_IBSS_STA_DISCONNECT
675 * - EVENT_WEP_ICV_ERR
676 * - EVENT_BW_CHANGE
677 * - EVENT_HOSTWAKE_STAIE
678 *
679 * For the following events, no action is taken -
680 * - EVENT_MIB_CHANGED
681 * - EVENT_INIT_DONE
682 * - EVENT_DUMMY_HOST_WAKEUP_SIGNAL
683 *
684 * Rest of the supported events requires driver handling -
685 * - EVENT_DEAUTHENTICATED
686 * - EVENT_DISASSOCIATED
687 * - EVENT_LINK_LOST
688 * - EVENT_PS_SLEEP
689 * - EVENT_PS_AWAKE
690 * - EVENT_DEEP_SLEEP_AWAKE
691 * - EVENT_HS_ACT_REQ
692 * - EVENT_ADHOC_BCN_LOST
693 * - EVENT_BG_SCAN_REPORT
694 * - EVENT_WMM_STATUS_CHANGE
695 * - EVENT_ADDBA
696 * - EVENT_DELBA
697 * - EVENT_BA_STREAM_TIEMOUT
698 * - EVENT_AMSDU_AGGR_CTRL
699 * - EVENT_FW_DUMP_INFO
700 */
mwifiex_process_sta_event(struct mwifiex_private * priv)701 int mwifiex_process_sta_event(struct mwifiex_private *priv)
702 {
703 struct mwifiex_adapter *adapter = priv->adapter;
704 int ret = 0, i;
705 u32 eventcause = adapter->event_cause;
706 u16 ctrl, reason_code;
707 u8 ibss_sta_addr[ETH_ALEN];
708 struct mwifiex_sta_node *sta_ptr;
709
710 switch (eventcause) {
711 case EVENT_DUMMY_HOST_WAKEUP_SIGNAL:
712 mwifiex_dbg(adapter, ERROR,
713 "invalid EVENT: DUMMY_HOST_WAKEUP_SIGNAL, ignore it\n");
714 break;
715 case EVENT_LINK_SENSED:
716 mwifiex_dbg(adapter, EVENT, "event: LINK_SENSED\n");
717 if (!netif_carrier_ok(priv->netdev))
718 netif_carrier_on(priv->netdev);
719 mwifiex_wake_up_net_dev_queue(priv->netdev, adapter);
720 break;
721
722 case EVENT_DEAUTHENTICATED:
723 mwifiex_dbg(adapter, EVENT, "event: Deauthenticated\n");
724 if (priv->wps.session_enable) {
725 mwifiex_dbg(adapter, INFO,
726 "info: receive deauth event in wps session\n");
727 break;
728 }
729 adapter->dbg.num_event_deauth++;
730 if (priv->media_connected) {
731 reason_code =
732 get_unaligned_le16(adapter->event_body);
733 mwifiex_reset_connect_state(priv, reason_code, true);
734 }
735 break;
736
737 case EVENT_DISASSOCIATED:
738 mwifiex_dbg(adapter, EVENT, "event: Disassociated\n");
739 if (priv->wps.session_enable) {
740 mwifiex_dbg(adapter, INFO,
741 "info: receive disassoc event in wps session\n");
742 break;
743 }
744 adapter->dbg.num_event_disassoc++;
745 if (priv->media_connected) {
746 reason_code =
747 get_unaligned_le16(adapter->event_body);
748 mwifiex_reset_connect_state(priv, reason_code, true);
749 }
750 break;
751
752 case EVENT_LINK_LOST:
753 mwifiex_dbg(adapter, EVENT, "event: Link lost\n");
754 adapter->dbg.num_event_link_lost++;
755 if (priv->media_connected) {
756 reason_code =
757 get_unaligned_le16(adapter->event_body);
758 mwifiex_reset_connect_state(priv, reason_code, true);
759 }
760 break;
761
762 case EVENT_PS_SLEEP:
763 mwifiex_dbg(adapter, EVENT, "info: EVENT: SLEEP\n");
764
765 adapter->ps_state = PS_STATE_PRE_SLEEP;
766
767 mwifiex_check_ps_cond(adapter);
768 break;
769
770 case EVENT_PS_AWAKE:
771 mwifiex_dbg(adapter, EVENT, "info: EVENT: AWAKE\n");
772 if (!adapter->pps_uapsd_mode &&
773 (priv->port_open ||
774 (priv->bss_mode == NL80211_IFTYPE_ADHOC)) &&
775 priv->media_connected && adapter->sleep_period.period) {
776 adapter->pps_uapsd_mode = true;
777 mwifiex_dbg(adapter, EVENT,
778 "event: PPS/UAPSD mode activated\n");
779 }
780 adapter->tx_lock_flag = false;
781 if (adapter->pps_uapsd_mode && adapter->gen_null_pkt) {
782 if (mwifiex_check_last_packet_indication(priv)) {
783 if (adapter->data_sent ||
784 (adapter->if_ops.is_port_ready &&
785 !adapter->if_ops.is_port_ready(priv))) {
786 adapter->ps_state = PS_STATE_AWAKE;
787 adapter->pm_wakeup_card_req = false;
788 adapter->pm_wakeup_fw_try = false;
789 del_timer(&adapter->wakeup_timer);
790 break;
791 }
792 if (!mwifiex_send_null_packet
793 (priv,
794 MWIFIEX_TxPD_POWER_MGMT_NULL_PACKET |
795 MWIFIEX_TxPD_POWER_MGMT_LAST_PACKET))
796 adapter->ps_state =
797 PS_STATE_SLEEP;
798 return 0;
799 }
800 }
801 adapter->ps_state = PS_STATE_AWAKE;
802 adapter->pm_wakeup_card_req = false;
803 adapter->pm_wakeup_fw_try = false;
804 del_timer(&adapter->wakeup_timer);
805
806 break;
807
808 case EVENT_DEEP_SLEEP_AWAKE:
809 adapter->if_ops.wakeup_complete(adapter);
810 mwifiex_dbg(adapter, EVENT, "event: DS_AWAKE\n");
811 if (adapter->is_deep_sleep)
812 adapter->is_deep_sleep = false;
813 break;
814
815 case EVENT_HS_ACT_REQ:
816 mwifiex_dbg(adapter, EVENT, "event: HS_ACT_REQ\n");
817 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_HS_CFG_ENH,
818 0, 0, NULL, false);
819 break;
820
821 case EVENT_MIC_ERR_UNICAST:
822 mwifiex_dbg(adapter, EVENT, "event: UNICAST MIC ERROR\n");
823 cfg80211_michael_mic_failure(priv->netdev, priv->cfg_bssid,
824 NL80211_KEYTYPE_PAIRWISE,
825 -1, NULL, GFP_KERNEL);
826 break;
827
828 case EVENT_MIC_ERR_MULTICAST:
829 mwifiex_dbg(adapter, EVENT, "event: MULTICAST MIC ERROR\n");
830 cfg80211_michael_mic_failure(priv->netdev, priv->cfg_bssid,
831 NL80211_KEYTYPE_GROUP,
832 -1, NULL, GFP_KERNEL);
833 break;
834 case EVENT_MIB_CHANGED:
835 case EVENT_INIT_DONE:
836 break;
837
838 case EVENT_ADHOC_BCN_LOST:
839 mwifiex_dbg(adapter, EVENT, "event: ADHOC_BCN_LOST\n");
840 priv->adhoc_is_link_sensed = false;
841 mwifiex_clean_txrx(priv);
842 mwifiex_stop_net_dev_queue(priv->netdev, adapter);
843 if (netif_carrier_ok(priv->netdev))
844 netif_carrier_off(priv->netdev);
845 break;
846
847 case EVENT_BG_SCAN_REPORT:
848 mwifiex_dbg(adapter, EVENT, "event: BGS_REPORT\n");
849 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_BG_SCAN_QUERY,
850 HostCmd_ACT_GEN_GET, 0, NULL, false);
851 break;
852
853 case EVENT_BG_SCAN_STOPPED:
854 dev_dbg(adapter->dev, "event: BGS_STOPPED\n");
855 cfg80211_sched_scan_stopped(priv->wdev.wiphy, 0);
856 if (priv->sched_scanning)
857 priv->sched_scanning = false;
858 break;
859
860 case EVENT_PORT_RELEASE:
861 mwifiex_dbg(adapter, EVENT, "event: PORT RELEASE\n");
862 priv->port_open = true;
863 break;
864
865 case EVENT_EXT_SCAN_REPORT:
866 mwifiex_dbg(adapter, EVENT, "event: EXT_SCAN Report\n");
867 /* We intend to skip this event during suspend, but handle
868 * it in interface disabled case
869 */
870 if (adapter->ext_scan && (!priv->scan_aborting ||
871 !netif_running(priv->netdev)))
872 ret = mwifiex_handle_event_ext_scan_report(priv,
873 adapter->event_skb->data);
874
875 break;
876
877 case EVENT_WMM_STATUS_CHANGE:
878 mwifiex_dbg(adapter, EVENT, "event: WMM status changed\n");
879 ret = mwifiex_send_cmd(priv, HostCmd_CMD_WMM_GET_STATUS,
880 0, 0, NULL, false);
881 break;
882
883 case EVENT_RSSI_LOW:
884 cfg80211_cqm_rssi_notify(priv->netdev,
885 NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW,
886 0, GFP_KERNEL);
887 mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO,
888 HostCmd_ACT_GEN_GET, 0, NULL, false);
889 priv->subsc_evt_rssi_state = RSSI_LOW_RECVD;
890 mwifiex_dbg(adapter, EVENT, "event: Beacon RSSI_LOW\n");
891 break;
892 case EVENT_SNR_LOW:
893 mwifiex_dbg(adapter, EVENT, "event: Beacon SNR_LOW\n");
894 break;
895 case EVENT_MAX_FAIL:
896 mwifiex_dbg(adapter, EVENT, "event: MAX_FAIL\n");
897 break;
898 case EVENT_RSSI_HIGH:
899 cfg80211_cqm_rssi_notify(priv->netdev,
900 NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH,
901 0, GFP_KERNEL);
902 mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO,
903 HostCmd_ACT_GEN_GET, 0, NULL, false);
904 priv->subsc_evt_rssi_state = RSSI_HIGH_RECVD;
905 mwifiex_dbg(adapter, EVENT, "event: Beacon RSSI_HIGH\n");
906 break;
907 case EVENT_SNR_HIGH:
908 mwifiex_dbg(adapter, EVENT, "event: Beacon SNR_HIGH\n");
909 break;
910 case EVENT_DATA_RSSI_LOW:
911 mwifiex_dbg(adapter, EVENT, "event: Data RSSI_LOW\n");
912 break;
913 case EVENT_DATA_SNR_LOW:
914 mwifiex_dbg(adapter, EVENT, "event: Data SNR_LOW\n");
915 break;
916 case EVENT_DATA_RSSI_HIGH:
917 mwifiex_dbg(adapter, EVENT, "event: Data RSSI_HIGH\n");
918 break;
919 case EVENT_DATA_SNR_HIGH:
920 mwifiex_dbg(adapter, EVENT, "event: Data SNR_HIGH\n");
921 break;
922 case EVENT_LINK_QUALITY:
923 mwifiex_dbg(adapter, EVENT, "event: Link Quality\n");
924 break;
925 case EVENT_PRE_BEACON_LOST:
926 mwifiex_dbg(adapter, EVENT, "event: Pre-Beacon Lost\n");
927 break;
928 case EVENT_IBSS_COALESCED:
929 mwifiex_dbg(adapter, EVENT, "event: IBSS_COALESCED\n");
930 ret = mwifiex_send_cmd(priv,
931 HostCmd_CMD_802_11_IBSS_COALESCING_STATUS,
932 HostCmd_ACT_GEN_GET, 0, NULL, false);
933 break;
934 case EVENT_IBSS_STA_CONNECT:
935 ether_addr_copy(ibss_sta_addr, adapter->event_body + 2);
936 mwifiex_dbg(adapter, EVENT, "event: IBSS_STA_CONNECT %pM\n",
937 ibss_sta_addr);
938 sta_ptr = mwifiex_add_sta_entry(priv, ibss_sta_addr);
939 if (sta_ptr && adapter->adhoc_11n_enabled) {
940 mwifiex_check_ibss_peer_capabilties(priv, sta_ptr,
941 adapter->event_skb);
942 if (sta_ptr->is_11n_enabled)
943 for (i = 0; i < MAX_NUM_TID; i++)
944 sta_ptr->ampdu_sta[i] =
945 priv->aggr_prio_tbl[i].ampdu_user;
946 else
947 for (i = 0; i < MAX_NUM_TID; i++)
948 sta_ptr->ampdu_sta[i] =
949 BA_STREAM_NOT_ALLOWED;
950 memset(sta_ptr->rx_seq, 0xff, sizeof(sta_ptr->rx_seq));
951 }
952
953 break;
954 case EVENT_IBSS_STA_DISCONNECT:
955 ether_addr_copy(ibss_sta_addr, adapter->event_body + 2);
956 mwifiex_dbg(adapter, EVENT, "event: IBSS_STA_DISCONNECT %pM\n",
957 ibss_sta_addr);
958 sta_ptr = mwifiex_get_sta_entry(priv, ibss_sta_addr);
959 if (sta_ptr && sta_ptr->is_11n_enabled) {
960 mwifiex_11n_del_rx_reorder_tbl_by_ta(priv,
961 ibss_sta_addr);
962 mwifiex_del_tx_ba_stream_tbl_by_ra(priv, ibss_sta_addr);
963 }
964 mwifiex_wmm_del_peer_ra_list(priv, ibss_sta_addr);
965 mwifiex_del_sta_entry(priv, ibss_sta_addr);
966 break;
967 case EVENT_ADDBA:
968 mwifiex_dbg(adapter, EVENT, "event: ADDBA Request\n");
969 mwifiex_send_cmd(priv, HostCmd_CMD_11N_ADDBA_RSP,
970 HostCmd_ACT_GEN_SET, 0,
971 adapter->event_body, false);
972 break;
973 case EVENT_DELBA:
974 mwifiex_dbg(adapter, EVENT, "event: DELBA Request\n");
975 mwifiex_11n_delete_ba_stream(priv, adapter->event_body);
976 break;
977 case EVENT_BA_STREAM_TIEMOUT:
978 mwifiex_dbg(adapter, EVENT, "event: BA Stream timeout\n");
979 mwifiex_11n_ba_stream_timeout(priv,
980 (struct host_cmd_ds_11n_batimeout
981 *)
982 adapter->event_body);
983 break;
984 case EVENT_AMSDU_AGGR_CTRL:
985 ctrl = get_unaligned_le16(adapter->event_body);
986 mwifiex_dbg(adapter, EVENT,
987 "event: AMSDU_AGGR_CTRL %d\n", ctrl);
988
989 adapter->tx_buf_size =
990 min_t(u16, adapter->curr_tx_buf_size, ctrl);
991 mwifiex_dbg(adapter, EVENT, "event: tx_buf_size %d\n",
992 adapter->tx_buf_size);
993 break;
994
995 case EVENT_WEP_ICV_ERR:
996 mwifiex_dbg(adapter, EVENT, "event: WEP ICV error\n");
997 break;
998
999 case EVENT_BW_CHANGE:
1000 mwifiex_dbg(adapter, EVENT, "event: BW Change\n");
1001 break;
1002
1003 case EVENT_HOSTWAKE_STAIE:
1004 mwifiex_dbg(adapter, EVENT,
1005 "event: HOSTWAKE_STAIE %d\n", eventcause);
1006 break;
1007
1008 case EVENT_REMAIN_ON_CHAN_EXPIRED:
1009 mwifiex_dbg(adapter, EVENT,
1010 "event: Remain on channel expired\n");
1011 cfg80211_remain_on_channel_expired(&priv->wdev,
1012 priv->roc_cfg.cookie,
1013 &priv->roc_cfg.chan,
1014 GFP_ATOMIC);
1015
1016 memset(&priv->roc_cfg, 0x00, sizeof(struct mwifiex_roc_cfg));
1017
1018 break;
1019
1020 case EVENT_CHANNEL_SWITCH_ANN:
1021 mwifiex_dbg(adapter, EVENT, "event: Channel Switch Announcement\n");
1022 priv->csa_expire_time =
1023 jiffies + msecs_to_jiffies(DFS_CHAN_MOVE_TIME);
1024 priv->csa_chan = priv->curr_bss_params.bss_descriptor.channel;
1025 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_DEAUTHENTICATE,
1026 HostCmd_ACT_GEN_SET, 0,
1027 priv->curr_bss_params.bss_descriptor.mac_address,
1028 false);
1029 break;
1030
1031 case EVENT_TDLS_GENERIC_EVENT:
1032 ret = mwifiex_parse_tdls_event(priv, adapter->event_skb);
1033 break;
1034
1035 case EVENT_TX_DATA_PAUSE:
1036 mwifiex_dbg(adapter, EVENT, "event: TX DATA PAUSE\n");
1037 mwifiex_process_tx_pause_event(priv, adapter->event_skb);
1038 break;
1039
1040 case EVENT_MULTI_CHAN_INFO:
1041 mwifiex_dbg(adapter, EVENT, "event: multi-chan info\n");
1042 mwifiex_process_multi_chan_event(priv, adapter->event_skb);
1043 break;
1044
1045 case EVENT_TX_STATUS_REPORT:
1046 mwifiex_dbg(adapter, EVENT, "event: TX_STATUS Report\n");
1047 mwifiex_parse_tx_status_event(priv, adapter->event_body);
1048 break;
1049
1050 case EVENT_CHANNEL_REPORT_RDY:
1051 mwifiex_dbg(adapter, EVENT, "event: Channel Report\n");
1052 ret = mwifiex_11h_handle_chanrpt_ready(priv,
1053 adapter->event_skb);
1054 break;
1055 case EVENT_RADAR_DETECTED:
1056 mwifiex_dbg(adapter, EVENT, "event: Radar detected\n");
1057 ret = mwifiex_11h_handle_radar_detected(priv,
1058 adapter->event_skb);
1059 break;
1060 case EVENT_BT_COEX_WLAN_PARA_CHANGE:
1061 dev_dbg(adapter->dev, "EVENT: BT coex wlan param update\n");
1062 mwifiex_bt_coex_wlan_param_update_event(priv,
1063 adapter->event_skb);
1064 break;
1065 case EVENT_RXBA_SYNC:
1066 dev_dbg(adapter->dev, "EVENT: RXBA_SYNC\n");
1067 mwifiex_11n_rxba_sync_event(priv, adapter->event_body,
1068 adapter->event_skb->len -
1069 sizeof(eventcause));
1070 break;
1071 case EVENT_FW_DUMP_INFO:
1072 mwifiex_dbg(adapter, EVENT, "event: firmware debug info\n");
1073 mwifiex_fw_dump_info_event(priv, adapter->event_skb);
1074 break;
1075 /* Debugging event; not used, but let's not print an ERROR for it. */
1076 case EVENT_UNKNOWN_DEBUG:
1077 mwifiex_dbg(adapter, EVENT, "event: debug\n");
1078 break;
1079 default:
1080 mwifiex_dbg(adapter, ERROR, "event: unknown event id: %#x\n",
1081 eventcause);
1082 break;
1083 }
1084
1085 return ret;
1086 }
1087
