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_capabilities(struct mwifiex_private * priv,struct mwifiex_sta_node * sta_ptr,struct sk_buff * event)30 static int mwifiex_check_ibss_peer_capabilities(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 capabilities:",
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
349 tp = (void *)tlv;
350 mwifiex_dbg(priv->adapter, EVENT,
351 "uap tx_pause: %pM pause=%d, pkts=%d\n",
352 tp->peermac, tp->tx_pause,
353 tp->pkt_cnt);
354
355 if (ether_addr_equal(tp->peermac, priv->netdev->dev_addr)) {
356 if (tp->tx_pause)
357 priv->port_open = false;
358 else
359 priv->port_open = true;
360 } else if (is_multicast_ether_addr(tp->peermac)) {
361 mwifiex_update_ralist_tx_pause(priv, tp->peermac, tp->tx_pause);
362 } else {
363 spin_lock_bh(&priv->sta_list_spinlock);
364 sta_ptr = mwifiex_get_sta_entry(priv, tp->peermac);
365 if (sta_ptr && sta_ptr->tx_pause != tp->tx_pause) {
366 sta_ptr->tx_pause = tp->tx_pause;
367 mwifiex_update_ralist_tx_pause(priv, tp->peermac,
368 tp->tx_pause);
369 }
370 spin_unlock_bh(&priv->sta_list_spinlock);
371 }
372 }
373
mwifiex_process_sta_tx_pause(struct mwifiex_private * priv,struct mwifiex_ie_types_header * tlv)374 static void mwifiex_process_sta_tx_pause(struct mwifiex_private *priv,
375 struct mwifiex_ie_types_header *tlv)
376 {
377 struct mwifiex_tx_pause_tlv *tp;
378 struct mwifiex_sta_node *sta_ptr;
379 int status;
380
381 tp = (void *)tlv;
382 mwifiex_dbg(priv->adapter, EVENT,
383 "sta tx_pause: %pM pause=%d, pkts=%d\n",
384 tp->peermac, tp->tx_pause,
385 tp->pkt_cnt);
386
387 if (ether_addr_equal(tp->peermac, priv->cfg_bssid)) {
388 if (tp->tx_pause)
389 priv->port_open = false;
390 else
391 priv->port_open = true;
392 } else {
393 if (!ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info))
394 return;
395
396 status = mwifiex_get_tdls_link_status(priv, tp->peermac);
397 if (mwifiex_is_tdls_link_setup(status)) {
398 spin_lock_bh(&priv->sta_list_spinlock);
399 sta_ptr = mwifiex_get_sta_entry(priv, tp->peermac);
400 if (sta_ptr && sta_ptr->tx_pause != tp->tx_pause) {
401 sta_ptr->tx_pause = tp->tx_pause;
402 mwifiex_update_ralist_tx_pause(priv,
403 tp->peermac,
404 tp->tx_pause);
405 }
406 spin_unlock_bh(&priv->sta_list_spinlock);
407 }
408 }
409 }
410
mwifiex_process_multi_chan_event(struct mwifiex_private * priv,struct sk_buff * event_skb)411 void mwifiex_process_multi_chan_event(struct mwifiex_private *priv,
412 struct sk_buff *event_skb)
413 {
414 struct mwifiex_ie_types_multi_chan_info *chan_info;
415 struct mwifiex_ie_types_mc_group_info *grp_info;
416 struct mwifiex_adapter *adapter = priv->adapter;
417 struct mwifiex_ie_types_header *tlv;
418 u16 tlv_buf_left, tlv_type, tlv_len;
419 int intf_num, bss_type, bss_num, i;
420 struct mwifiex_private *intf_priv;
421
422 tlv_buf_left = event_skb->len - sizeof(u32);
423 chan_info = (void *)event_skb->data + sizeof(u32);
424
425 if (le16_to_cpu(chan_info->header.type) != TLV_TYPE_MULTI_CHAN_INFO ||
426 tlv_buf_left < sizeof(struct mwifiex_ie_types_multi_chan_info)) {
427 mwifiex_dbg(adapter, ERROR,
428 "unknown TLV in chan_info event\n");
429 return;
430 }
431
432 adapter->usb_mc_status = le16_to_cpu(chan_info->status);
433 mwifiex_dbg(adapter, EVENT, "multi chan operation %s\n",
434 adapter->usb_mc_status ? "started" : "over");
435
436 tlv_buf_left -= sizeof(struct mwifiex_ie_types_multi_chan_info);
437 tlv = (struct mwifiex_ie_types_header *)chan_info->tlv_buffer;
438
439 while (tlv_buf_left >= (int)sizeof(struct mwifiex_ie_types_header)) {
440 tlv_type = le16_to_cpu(tlv->type);
441 tlv_len = le16_to_cpu(tlv->len);
442 if ((sizeof(struct mwifiex_ie_types_header) + tlv_len) >
443 tlv_buf_left) {
444 mwifiex_dbg(adapter, ERROR, "wrong tlv: tlvLen=%d,\t"
445 "tlvBufLeft=%d\n", tlv_len, tlv_buf_left);
446 break;
447 }
448 if (tlv_type != TLV_TYPE_MC_GROUP_INFO) {
449 mwifiex_dbg(adapter, ERROR, "wrong tlv type: 0x%x\n",
450 tlv_type);
451 break;
452 }
453
454 grp_info = (struct mwifiex_ie_types_mc_group_info *)tlv;
455 intf_num = grp_info->intf_num;
456 for (i = 0; i < intf_num; i++) {
457 bss_type = grp_info->bss_type_numlist[i] >> 4;
458 bss_num = grp_info->bss_type_numlist[i] & BSS_NUM_MASK;
459 intf_priv = mwifiex_get_priv_by_id(adapter, bss_num,
460 bss_type);
461 if (!intf_priv) {
462 mwifiex_dbg(adapter, ERROR,
463 "Invalid bss_type bss_num\t"
464 "in multi channel event\n");
465 continue;
466 }
467 if (adapter->iface_type == MWIFIEX_USB) {
468 u8 ep;
469
470 ep = grp_info->hid_num.usb_ep_num;
471 if (ep == MWIFIEX_USB_EP_DATA ||
472 ep == MWIFIEX_USB_EP_DATA_CH2)
473 intf_priv->usb_port = ep;
474 }
475 }
476
477 tlv_buf_left -= sizeof(struct mwifiex_ie_types_header) +
478 tlv_len;
479 tlv = (void *)((u8 *)tlv + tlv_len +
480 sizeof(struct mwifiex_ie_types_header));
481 }
482
483 if (adapter->iface_type == MWIFIEX_USB) {
484 adapter->tx_lock_flag = true;
485 adapter->usb_mc_setup = true;
486 mwifiex_multi_chan_resync(adapter);
487 }
488 }
489
mwifiex_process_tx_pause_event(struct mwifiex_private * priv,struct sk_buff * event_skb)490 void mwifiex_process_tx_pause_event(struct mwifiex_private *priv,
491 struct sk_buff *event_skb)
492 {
493 struct mwifiex_ie_types_header *tlv;
494 u16 tlv_type, tlv_len;
495 int tlv_buf_left;
496
497 if (!priv->media_connected) {
498 mwifiex_dbg(priv->adapter, ERROR,
499 "tx_pause event while disconnected; bss_role=%d\n",
500 priv->bss_role);
501 return;
502 }
503
504 tlv_buf_left = event_skb->len - sizeof(u32);
505 tlv = (void *)event_skb->data + sizeof(u32);
506
507 while (tlv_buf_left >= (int)sizeof(struct mwifiex_ie_types_header)) {
508 tlv_type = le16_to_cpu(tlv->type);
509 tlv_len = le16_to_cpu(tlv->len);
510 if ((sizeof(struct mwifiex_ie_types_header) + tlv_len) >
511 tlv_buf_left) {
512 mwifiex_dbg(priv->adapter, ERROR,
513 "wrong tlv: tlvLen=%d, tlvBufLeft=%d\n",
514 tlv_len, tlv_buf_left);
515 break;
516 }
517 if (tlv_type == TLV_TYPE_TX_PAUSE) {
518 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA)
519 mwifiex_process_sta_tx_pause(priv, tlv);
520 else
521 mwifiex_process_uap_tx_pause(priv, tlv);
522 }
523
524 tlv_buf_left -= sizeof(struct mwifiex_ie_types_header) +
525 tlv_len;
526 tlv = (void *)((u8 *)tlv + tlv_len +
527 sizeof(struct mwifiex_ie_types_header));
528 }
529
530 }
531
532 /*
533 * This function handles coex events generated by firmware
534 */
mwifiex_bt_coex_wlan_param_update_event(struct mwifiex_private * priv,struct sk_buff * event_skb)535 void mwifiex_bt_coex_wlan_param_update_event(struct mwifiex_private *priv,
536 struct sk_buff *event_skb)
537 {
538 struct mwifiex_adapter *adapter = priv->adapter;
539 struct mwifiex_ie_types_header *tlv;
540 struct mwifiex_ie_types_btcoex_aggr_win_size *winsizetlv;
541 struct mwifiex_ie_types_btcoex_scan_time *scantlv;
542 s32 len = event_skb->len - sizeof(u32);
543 u8 *cur_ptr = event_skb->data + sizeof(u32);
544 u16 tlv_type, tlv_len;
545
546 while (len >= sizeof(struct mwifiex_ie_types_header)) {
547 tlv = (struct mwifiex_ie_types_header *)cur_ptr;
548 tlv_len = le16_to_cpu(tlv->len);
549 tlv_type = le16_to_cpu(tlv->type);
550
551 if ((tlv_len + sizeof(struct mwifiex_ie_types_header)) > len)
552 break;
553 switch (tlv_type) {
554 case TLV_BTCOEX_WL_AGGR_WINSIZE:
555 winsizetlv =
556 (struct mwifiex_ie_types_btcoex_aggr_win_size *)tlv;
557 adapter->coex_win_size = winsizetlv->coex_win_size;
558 adapter->coex_tx_win_size =
559 winsizetlv->tx_win_size;
560 adapter->coex_rx_win_size =
561 winsizetlv->rx_win_size;
562 mwifiex_coex_ampdu_rxwinsize(adapter);
563 mwifiex_update_ampdu_txwinsize(adapter);
564 break;
565
566 case TLV_BTCOEX_WL_SCANTIME:
567 scantlv =
568 (struct mwifiex_ie_types_btcoex_scan_time *)tlv;
569 adapter->coex_scan = scantlv->coex_scan;
570 adapter->coex_min_scan_time = le16_to_cpu(scantlv->min_scan_time);
571 adapter->coex_max_scan_time = le16_to_cpu(scantlv->max_scan_time);
572 break;
573
574 default:
575 break;
576 }
577
578 len -= tlv_len + sizeof(struct mwifiex_ie_types_header);
579 cur_ptr += tlv_len +
580 sizeof(struct mwifiex_ie_types_header);
581 }
582
583 dev_dbg(adapter->dev, "coex_scan=%d min_scan=%d coex_win=%d, tx_win=%d rx_win=%d\n",
584 adapter->coex_scan, adapter->coex_min_scan_time,
585 adapter->coex_win_size, adapter->coex_tx_win_size,
586 adapter->coex_rx_win_size);
587 }
588
589 static void
mwifiex_fw_dump_info_event(struct mwifiex_private * priv,struct sk_buff * event_skb)590 mwifiex_fw_dump_info_event(struct mwifiex_private *priv,
591 struct sk_buff *event_skb)
592 {
593 struct mwifiex_adapter *adapter = priv->adapter;
594 struct mwifiex_fw_dump_header *fw_dump_hdr =
595 (void *)adapter->event_body;
596
597 if (adapter->iface_type != MWIFIEX_USB) {
598 mwifiex_dbg(adapter, MSG,
599 "event is not on usb interface, ignore it\n");
600 return;
601 }
602
603 if (!adapter->devdump_data) {
604 /* When receive the first event, allocate device dump
605 * buffer, dump driver info.
606 */
607 adapter->devdump_data = vzalloc(MWIFIEX_FW_DUMP_SIZE);
608 if (!adapter->devdump_data) {
609 mwifiex_dbg(adapter, ERROR,
610 "vzalloc devdump data failure!\n");
611 return;
612 }
613
614 mwifiex_drv_info_dump(adapter);
615
616 /* If no proceeded event arrive in 10s, upload device
617 * dump data, this will be useful if the end of
618 * transmission event get lost, in this cornel case,
619 * user would still get partial of the dump.
620 */
621 mod_timer(&adapter->devdump_timer,
622 jiffies + msecs_to_jiffies(MWIFIEX_TIMER_10S));
623 }
624
625 /* Overflow check */
626 if (adapter->devdump_len + event_skb->len >= MWIFIEX_FW_DUMP_SIZE)
627 goto upload_dump;
628
629 memmove(adapter->devdump_data + adapter->devdump_len,
630 adapter->event_skb->data, event_skb->len);
631 adapter->devdump_len += event_skb->len;
632
633 if (le16_to_cpu(fw_dump_hdr->type == FW_DUMP_INFO_ENDED)) {
634 mwifiex_dbg(adapter, MSG,
635 "receive end of transmission flag event!\n");
636 goto upload_dump;
637 }
638 return;
639
640 upload_dump:
641 del_timer_sync(&adapter->devdump_timer);
642 mwifiex_upload_device_dump(adapter);
643 }
644
645 /*
646 * This function handles events generated by firmware.
647 *
648 * This is a generic function and handles all events.
649 *
650 * Event specific routines are called by this function based
651 * upon the generated event cause.
652 *
653 * For the following events, the function just forwards them to upper
654 * layers, optionally recording the change -
655 * - EVENT_LINK_SENSED
656 * - EVENT_MIC_ERR_UNICAST
657 * - EVENT_MIC_ERR_MULTICAST
658 * - EVENT_PORT_RELEASE
659 * - EVENT_RSSI_LOW
660 * - EVENT_SNR_LOW
661 * - EVENT_MAX_FAIL
662 * - EVENT_RSSI_HIGH
663 * - EVENT_SNR_HIGH
664 * - EVENT_DATA_RSSI_LOW
665 * - EVENT_DATA_SNR_LOW
666 * - EVENT_DATA_RSSI_HIGH
667 * - EVENT_DATA_SNR_HIGH
668 * - EVENT_LINK_QUALITY
669 * - EVENT_PRE_BEACON_LOST
670 * - EVENT_IBSS_COALESCED
671 * - EVENT_IBSS_STA_CONNECT
672 * - EVENT_IBSS_STA_DISCONNECT
673 * - EVENT_WEP_ICV_ERR
674 * - EVENT_BW_CHANGE
675 * - EVENT_HOSTWAKE_STAIE
676 *
677 * For the following events, no action is taken -
678 * - EVENT_MIB_CHANGED
679 * - EVENT_INIT_DONE
680 * - EVENT_DUMMY_HOST_WAKEUP_SIGNAL
681 *
682 * Rest of the supported events requires driver handling -
683 * - EVENT_DEAUTHENTICATED
684 * - EVENT_DISASSOCIATED
685 * - EVENT_LINK_LOST
686 * - EVENT_PS_SLEEP
687 * - EVENT_PS_AWAKE
688 * - EVENT_DEEP_SLEEP_AWAKE
689 * - EVENT_HS_ACT_REQ
690 * - EVENT_ADHOC_BCN_LOST
691 * - EVENT_BG_SCAN_REPORT
692 * - EVENT_WMM_STATUS_CHANGE
693 * - EVENT_ADDBA
694 * - EVENT_DELBA
695 * - EVENT_BA_STREAM_TIEMOUT
696 * - EVENT_AMSDU_AGGR_CTRL
697 * - EVENT_FW_DUMP_INFO
698 */
mwifiex_process_sta_event(struct mwifiex_private * priv)699 int mwifiex_process_sta_event(struct mwifiex_private *priv)
700 {
701 struct mwifiex_adapter *adapter = priv->adapter;
702 int ret = 0, i;
703 u32 eventcause = adapter->event_cause;
704 u16 ctrl, reason_code;
705 u8 ibss_sta_addr[ETH_ALEN];
706 struct mwifiex_sta_node *sta_ptr;
707
708 switch (eventcause) {
709 case EVENT_DUMMY_HOST_WAKEUP_SIGNAL:
710 mwifiex_dbg(adapter, ERROR,
711 "invalid EVENT: DUMMY_HOST_WAKEUP_SIGNAL, ignore it\n");
712 break;
713 case EVENT_LINK_SENSED:
714 mwifiex_dbg(adapter, EVENT, "event: LINK_SENSED\n");
715 if (!netif_carrier_ok(priv->netdev))
716 netif_carrier_on(priv->netdev);
717 mwifiex_wake_up_net_dev_queue(priv->netdev, adapter);
718 break;
719
720 case EVENT_DEAUTHENTICATED:
721 mwifiex_dbg(adapter, EVENT, "event: Deauthenticated\n");
722 if (priv->wps.session_enable) {
723 mwifiex_dbg(adapter, INFO,
724 "info: receive deauth event in wps session\n");
725 break;
726 }
727 adapter->dbg.num_event_deauth++;
728 if (priv->media_connected) {
729 reason_code =
730 get_unaligned_le16(adapter->event_body);
731 mwifiex_reset_connect_state(priv, reason_code, true);
732 }
733 break;
734
735 case EVENT_DISASSOCIATED:
736 mwifiex_dbg(adapter, EVENT, "event: Disassociated\n");
737 if (priv->wps.session_enable) {
738 mwifiex_dbg(adapter, INFO,
739 "info: receive disassoc event in wps session\n");
740 break;
741 }
742 adapter->dbg.num_event_disassoc++;
743 if (priv->media_connected) {
744 reason_code =
745 get_unaligned_le16(adapter->event_body);
746 mwifiex_reset_connect_state(priv, reason_code, true);
747 }
748 break;
749
750 case EVENT_LINK_LOST:
751 mwifiex_dbg(adapter, EVENT, "event: Link lost\n");
752 adapter->dbg.num_event_link_lost++;
753 if (priv->media_connected) {
754 reason_code =
755 get_unaligned_le16(adapter->event_body);
756 mwifiex_reset_connect_state(priv, reason_code, true);
757 }
758 break;
759
760 case EVENT_PS_SLEEP:
761 mwifiex_dbg(adapter, EVENT, "info: EVENT: SLEEP\n");
762
763 adapter->ps_state = PS_STATE_PRE_SLEEP;
764
765 mwifiex_check_ps_cond(adapter);
766 break;
767
768 case EVENT_PS_AWAKE:
769 mwifiex_dbg(adapter, EVENT, "info: EVENT: AWAKE\n");
770 if (!adapter->pps_uapsd_mode &&
771 (priv->port_open ||
772 (priv->bss_mode == NL80211_IFTYPE_ADHOC)) &&
773 priv->media_connected && adapter->sleep_period.period) {
774 adapter->pps_uapsd_mode = true;
775 mwifiex_dbg(adapter, EVENT,
776 "event: PPS/UAPSD mode activated\n");
777 }
778 adapter->tx_lock_flag = false;
779 if (adapter->pps_uapsd_mode && adapter->gen_null_pkt) {
780 if (mwifiex_check_last_packet_indication(priv)) {
781 if (adapter->data_sent ||
782 (adapter->if_ops.is_port_ready &&
783 !adapter->if_ops.is_port_ready(priv))) {
784 adapter->ps_state = PS_STATE_AWAKE;
785 adapter->pm_wakeup_card_req = false;
786 adapter->pm_wakeup_fw_try = false;
787 del_timer(&adapter->wakeup_timer);
788 break;
789 }
790 if (!mwifiex_send_null_packet
791 (priv,
792 MWIFIEX_TxPD_POWER_MGMT_NULL_PACKET |
793 MWIFIEX_TxPD_POWER_MGMT_LAST_PACKET))
794 adapter->ps_state =
795 PS_STATE_SLEEP;
796 return 0;
797 }
798 }
799 adapter->ps_state = PS_STATE_AWAKE;
800 adapter->pm_wakeup_card_req = false;
801 adapter->pm_wakeup_fw_try = false;
802 del_timer(&adapter->wakeup_timer);
803
804 break;
805
806 case EVENT_DEEP_SLEEP_AWAKE:
807 adapter->if_ops.wakeup_complete(adapter);
808 mwifiex_dbg(adapter, EVENT, "event: DS_AWAKE\n");
809 if (adapter->is_deep_sleep)
810 adapter->is_deep_sleep = false;
811 break;
812
813 case EVENT_HS_ACT_REQ:
814 mwifiex_dbg(adapter, EVENT, "event: HS_ACT_REQ\n");
815 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_HS_CFG_ENH,
816 0, 0, NULL, false);
817 break;
818
819 case EVENT_MIC_ERR_UNICAST:
820 mwifiex_dbg(adapter, EVENT, "event: UNICAST MIC ERROR\n");
821 cfg80211_michael_mic_failure(priv->netdev, priv->cfg_bssid,
822 NL80211_KEYTYPE_PAIRWISE,
823 -1, NULL, GFP_KERNEL);
824 break;
825
826 case EVENT_MIC_ERR_MULTICAST:
827 mwifiex_dbg(adapter, EVENT, "event: MULTICAST MIC ERROR\n");
828 cfg80211_michael_mic_failure(priv->netdev, priv->cfg_bssid,
829 NL80211_KEYTYPE_GROUP,
830 -1, NULL, GFP_KERNEL);
831 break;
832 case EVENT_MIB_CHANGED:
833 case EVENT_INIT_DONE:
834 break;
835
836 case EVENT_ADHOC_BCN_LOST:
837 mwifiex_dbg(adapter, EVENT, "event: ADHOC_BCN_LOST\n");
838 priv->adhoc_is_link_sensed = false;
839 mwifiex_clean_txrx(priv);
840 mwifiex_stop_net_dev_queue(priv->netdev, adapter);
841 if (netif_carrier_ok(priv->netdev))
842 netif_carrier_off(priv->netdev);
843 break;
844
845 case EVENT_BG_SCAN_REPORT:
846 mwifiex_dbg(adapter, EVENT, "event: BGS_REPORT\n");
847 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_BG_SCAN_QUERY,
848 HostCmd_ACT_GEN_GET, 0, NULL, false);
849 break;
850
851 case EVENT_BG_SCAN_STOPPED:
852 dev_dbg(adapter->dev, "event: BGS_STOPPED\n");
853 cfg80211_sched_scan_stopped(priv->wdev.wiphy, 0);
854 if (priv->sched_scanning)
855 priv->sched_scanning = false;
856 break;
857
858 case EVENT_PORT_RELEASE:
859 mwifiex_dbg(adapter, EVENT, "event: PORT RELEASE\n");
860 priv->port_open = true;
861 break;
862
863 case EVENT_EXT_SCAN_REPORT:
864 mwifiex_dbg(adapter, EVENT, "event: EXT_SCAN Report\n");
865 /* We intend to skip this event during suspend, but handle
866 * it in interface disabled case
867 */
868 if (adapter->ext_scan && (!priv->scan_aborting ||
869 !netif_running(priv->netdev)))
870 ret = mwifiex_handle_event_ext_scan_report(priv,
871 adapter->event_skb->data);
872
873 break;
874
875 case EVENT_WMM_STATUS_CHANGE:
876 mwifiex_dbg(adapter, EVENT, "event: WMM status changed\n");
877 ret = mwifiex_send_cmd(priv, HostCmd_CMD_WMM_GET_STATUS,
878 0, 0, NULL, false);
879 break;
880
881 case EVENT_RSSI_LOW:
882 cfg80211_cqm_rssi_notify(priv->netdev,
883 NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW,
884 0, GFP_KERNEL);
885 mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO,
886 HostCmd_ACT_GEN_GET, 0, NULL, false);
887 priv->subsc_evt_rssi_state = RSSI_LOW_RECVD;
888 mwifiex_dbg(adapter, EVENT, "event: Beacon RSSI_LOW\n");
889 break;
890 case EVENT_SNR_LOW:
891 mwifiex_dbg(adapter, EVENT, "event: Beacon SNR_LOW\n");
892 break;
893 case EVENT_MAX_FAIL:
894 mwifiex_dbg(adapter, EVENT, "event: MAX_FAIL\n");
895 break;
896 case EVENT_RSSI_HIGH:
897 cfg80211_cqm_rssi_notify(priv->netdev,
898 NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH,
899 0, GFP_KERNEL);
900 mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO,
901 HostCmd_ACT_GEN_GET, 0, NULL, false);
902 priv->subsc_evt_rssi_state = RSSI_HIGH_RECVD;
903 mwifiex_dbg(adapter, EVENT, "event: Beacon RSSI_HIGH\n");
904 break;
905 case EVENT_SNR_HIGH:
906 mwifiex_dbg(adapter, EVENT, "event: Beacon SNR_HIGH\n");
907 break;
908 case EVENT_DATA_RSSI_LOW:
909 mwifiex_dbg(adapter, EVENT, "event: Data RSSI_LOW\n");
910 break;
911 case EVENT_DATA_SNR_LOW:
912 mwifiex_dbg(adapter, EVENT, "event: Data SNR_LOW\n");
913 break;
914 case EVENT_DATA_RSSI_HIGH:
915 mwifiex_dbg(adapter, EVENT, "event: Data RSSI_HIGH\n");
916 break;
917 case EVENT_DATA_SNR_HIGH:
918 mwifiex_dbg(adapter, EVENT, "event: Data SNR_HIGH\n");
919 break;
920 case EVENT_LINK_QUALITY:
921 mwifiex_dbg(adapter, EVENT, "event: Link Quality\n");
922 break;
923 case EVENT_PRE_BEACON_LOST:
924 mwifiex_dbg(adapter, EVENT, "event: Pre-Beacon Lost\n");
925 break;
926 case EVENT_IBSS_COALESCED:
927 mwifiex_dbg(adapter, EVENT, "event: IBSS_COALESCED\n");
928 ret = mwifiex_send_cmd(priv,
929 HostCmd_CMD_802_11_IBSS_COALESCING_STATUS,
930 HostCmd_ACT_GEN_GET, 0, NULL, false);
931 break;
932 case EVENT_IBSS_STA_CONNECT:
933 ether_addr_copy(ibss_sta_addr, adapter->event_body + 2);
934 mwifiex_dbg(adapter, EVENT, "event: IBSS_STA_CONNECT %pM\n",
935 ibss_sta_addr);
936 sta_ptr = mwifiex_add_sta_entry(priv, ibss_sta_addr);
937 if (sta_ptr && adapter->adhoc_11n_enabled) {
938 mwifiex_check_ibss_peer_capabilities(priv, sta_ptr,
939 adapter->event_skb);
940 if (sta_ptr->is_11n_enabled)
941 for (i = 0; i < MAX_NUM_TID; i++)
942 sta_ptr->ampdu_sta[i] =
943 priv->aggr_prio_tbl[i].ampdu_user;
944 else
945 for (i = 0; i < MAX_NUM_TID; i++)
946 sta_ptr->ampdu_sta[i] =
947 BA_STREAM_NOT_ALLOWED;
948 memset(sta_ptr->rx_seq, 0xff, sizeof(sta_ptr->rx_seq));
949 }
950
951 break;
952 case EVENT_IBSS_STA_DISCONNECT:
953 ether_addr_copy(ibss_sta_addr, adapter->event_body + 2);
954 mwifiex_dbg(adapter, EVENT, "event: IBSS_STA_DISCONNECT %pM\n",
955 ibss_sta_addr);
956 sta_ptr = mwifiex_get_sta_entry(priv, ibss_sta_addr);
957 if (sta_ptr && sta_ptr->is_11n_enabled) {
958 mwifiex_11n_del_rx_reorder_tbl_by_ta(priv,
959 ibss_sta_addr);
960 mwifiex_del_tx_ba_stream_tbl_by_ra(priv, ibss_sta_addr);
961 }
962 mwifiex_wmm_del_peer_ra_list(priv, ibss_sta_addr);
963 mwifiex_del_sta_entry(priv, ibss_sta_addr);
964 break;
965 case EVENT_ADDBA:
966 mwifiex_dbg(adapter, EVENT, "event: ADDBA Request\n");
967 mwifiex_send_cmd(priv, HostCmd_CMD_11N_ADDBA_RSP,
968 HostCmd_ACT_GEN_SET, 0,
969 adapter->event_body, false);
970 break;
971 case EVENT_DELBA:
972 mwifiex_dbg(adapter, EVENT, "event: DELBA Request\n");
973 mwifiex_11n_delete_ba_stream(priv, adapter->event_body);
974 break;
975 case EVENT_BA_STREAM_TIEMOUT:
976 mwifiex_dbg(adapter, EVENT, "event: BA Stream timeout\n");
977 mwifiex_11n_ba_stream_timeout(priv,
978 (struct host_cmd_ds_11n_batimeout
979 *)
980 adapter->event_body);
981 break;
982 case EVENT_AMSDU_AGGR_CTRL:
983 ctrl = get_unaligned_le16(adapter->event_body);
984 mwifiex_dbg(adapter, EVENT,
985 "event: AMSDU_AGGR_CTRL %d\n", ctrl);
986
987 adapter->tx_buf_size =
988 min_t(u16, adapter->curr_tx_buf_size, ctrl);
989 mwifiex_dbg(adapter, EVENT, "event: tx_buf_size %d\n",
990 adapter->tx_buf_size);
991 break;
992
993 case EVENT_WEP_ICV_ERR:
994 mwifiex_dbg(adapter, EVENT, "event: WEP ICV error\n");
995 break;
996
997 case EVENT_BW_CHANGE:
998 mwifiex_dbg(adapter, EVENT, "event: BW Change\n");
999 break;
1000
1001 case EVENT_HOSTWAKE_STAIE:
1002 mwifiex_dbg(adapter, EVENT,
1003 "event: HOSTWAKE_STAIE %d\n", eventcause);
1004 break;
1005
1006 case EVENT_REMAIN_ON_CHAN_EXPIRED:
1007 mwifiex_dbg(adapter, EVENT,
1008 "event: Remain on channel expired\n");
1009 cfg80211_remain_on_channel_expired(&priv->wdev,
1010 priv->roc_cfg.cookie,
1011 &priv->roc_cfg.chan,
1012 GFP_ATOMIC);
1013
1014 memset(&priv->roc_cfg, 0x00, sizeof(struct mwifiex_roc_cfg));
1015
1016 break;
1017
1018 case EVENT_CHANNEL_SWITCH_ANN:
1019 mwifiex_dbg(adapter, EVENT, "event: Channel Switch Announcement\n");
1020 priv->csa_expire_time =
1021 jiffies + msecs_to_jiffies(DFS_CHAN_MOVE_TIME);
1022 priv->csa_chan = priv->curr_bss_params.bss_descriptor.channel;
1023 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_DEAUTHENTICATE,
1024 HostCmd_ACT_GEN_SET, 0,
1025 priv->curr_bss_params.bss_descriptor.mac_address,
1026 false);
1027 break;
1028
1029 case EVENT_TDLS_GENERIC_EVENT:
1030 ret = mwifiex_parse_tdls_event(priv, adapter->event_skb);
1031 break;
1032
1033 case EVENT_TX_DATA_PAUSE:
1034 mwifiex_dbg(adapter, EVENT, "event: TX DATA PAUSE\n");
1035 mwifiex_process_tx_pause_event(priv, adapter->event_skb);
1036 break;
1037
1038 case EVENT_MULTI_CHAN_INFO:
1039 mwifiex_dbg(adapter, EVENT, "event: multi-chan info\n");
1040 mwifiex_process_multi_chan_event(priv, adapter->event_skb);
1041 break;
1042
1043 case EVENT_TX_STATUS_REPORT:
1044 mwifiex_dbg(adapter, EVENT, "event: TX_STATUS Report\n");
1045 mwifiex_parse_tx_status_event(priv, adapter->event_body);
1046 break;
1047
1048 case EVENT_CHANNEL_REPORT_RDY:
1049 mwifiex_dbg(adapter, EVENT, "event: Channel Report\n");
1050 ret = mwifiex_11h_handle_chanrpt_ready(priv,
1051 adapter->event_skb);
1052 break;
1053 case EVENT_RADAR_DETECTED:
1054 mwifiex_dbg(adapter, EVENT, "event: Radar detected\n");
1055 ret = mwifiex_11h_handle_radar_detected(priv,
1056 adapter->event_skb);
1057 break;
1058 case EVENT_BT_COEX_WLAN_PARA_CHANGE:
1059 dev_dbg(adapter->dev, "EVENT: BT coex wlan param update\n");
1060 mwifiex_bt_coex_wlan_param_update_event(priv,
1061 adapter->event_skb);
1062 break;
1063 case EVENT_RXBA_SYNC:
1064 dev_dbg(adapter->dev, "EVENT: RXBA_SYNC\n");
1065 mwifiex_11n_rxba_sync_event(priv, adapter->event_body,
1066 adapter->event_skb->len -
1067 sizeof(eventcause));
1068 break;
1069 case EVENT_FW_DUMP_INFO:
1070 mwifiex_dbg(adapter, EVENT, "event: firmware debug info\n");
1071 mwifiex_fw_dump_info_event(priv, adapter->event_skb);
1072 break;
1073 /* Debugging event; not used, but let's not print an ERROR for it. */
1074 case EVENT_UNKNOWN_DEBUG:
1075 mwifiex_dbg(adapter, EVENT, "event: debug\n");
1076 break;
1077 default:
1078 mwifiex_dbg(adapter, ERROR, "event: unknown event id: %#x\n",
1079 eventcause);
1080 break;
1081 }
1082
1083 return ret;
1084 }
1085
