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[mirror_ubuntu-focal-kernel.git] / drivers / net / wireless / quantenna / qtnfmac / cfg80211.c
1 /*
2 * Copyright (c) 2012-2012 Quantenna Communications, Inc.
3 * All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version 2
8 * of the License, or (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 */
16
17 #include <linux/kernel.h>
18 #include <linux/etherdevice.h>
19 #include <linux/vmalloc.h>
20 #include <linux/ieee80211.h>
21 #include <net/cfg80211.h>
22 #include <net/netlink.h>
23
24 #include "cfg80211.h"
25 #include "commands.h"
26 #include "core.h"
27 #include "util.h"
28 #include "bus.h"
29
30 /* Supported rates to be advertised to the cfg80211 */
31 static struct ieee80211_rate qtnf_rates_2g[] = {
32 {.bitrate = 10, .hw_value = 2, },
33 {.bitrate = 20, .hw_value = 4, },
34 {.bitrate = 55, .hw_value = 11, },
35 {.bitrate = 110, .hw_value = 22, },
36 {.bitrate = 60, .hw_value = 12, },
37 {.bitrate = 90, .hw_value = 18, },
38 {.bitrate = 120, .hw_value = 24, },
39 {.bitrate = 180, .hw_value = 36, },
40 {.bitrate = 240, .hw_value = 48, },
41 {.bitrate = 360, .hw_value = 72, },
42 {.bitrate = 480, .hw_value = 96, },
43 {.bitrate = 540, .hw_value = 108, },
44 };
45
46 /* Supported rates to be advertised to the cfg80211 */
47 static struct ieee80211_rate qtnf_rates_5g[] = {
48 {.bitrate = 60, .hw_value = 12, },
49 {.bitrate = 90, .hw_value = 18, },
50 {.bitrate = 120, .hw_value = 24, },
51 {.bitrate = 180, .hw_value = 36, },
52 {.bitrate = 240, .hw_value = 48, },
53 {.bitrate = 360, .hw_value = 72, },
54 {.bitrate = 480, .hw_value = 96, },
55 {.bitrate = 540, .hw_value = 108, },
56 };
57
58 /* Supported crypto cipher suits to be advertised to cfg80211 */
59 static const u32 qtnf_cipher_suites[] = {
60 WLAN_CIPHER_SUITE_TKIP,
61 WLAN_CIPHER_SUITE_CCMP,
62 WLAN_CIPHER_SUITE_AES_CMAC,
63 };
64
65 /* Supported mgmt frame types to be advertised to cfg80211 */
66 static const struct ieee80211_txrx_stypes
67 qtnf_mgmt_stypes[NUM_NL80211_IFTYPES] = {
68 [NL80211_IFTYPE_STATION] = {
69 .tx = BIT(IEEE80211_STYPE_ACTION >> 4),
70 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
71 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
72 },
73 [NL80211_IFTYPE_AP] = {
74 .tx = BIT(IEEE80211_STYPE_ACTION >> 4),
75 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
76 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) |
77 BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) |
78 BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) |
79 BIT(IEEE80211_STYPE_AUTH >> 4),
80 },
81 };
82
83 static int
84 qtnf_change_virtual_intf(struct wiphy *wiphy,
85 struct net_device *dev,
86 enum nl80211_iftype type,
87 struct vif_params *params)
88 {
89 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
90 u8 *mac_addr;
91 int ret;
92
93 if (params)
94 mac_addr = params->macaddr;
95 else
96 mac_addr = NULL;
97
98 qtnf_scan_done(vif->mac, true);
99
100 ret = qtnf_cmd_send_change_intf_type(vif, type, mac_addr);
101 if (ret) {
102 pr_err("VIF%u.%u: failed to change VIF type: %d\n",
103 vif->mac->macid, vif->vifid, ret);
104 return ret;
105 }
106
107 vif->wdev.iftype = type;
108 return 0;
109 }
110
111 int qtnf_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
112 {
113 struct net_device *netdev = wdev->netdev;
114 struct qtnf_vif *vif;
115
116 if (WARN_ON(!netdev))
117 return -EFAULT;
118
119 vif = qtnf_netdev_get_priv(wdev->netdev);
120
121 qtnf_scan_done(vif->mac, true);
122
123 if (qtnf_cmd_send_del_intf(vif))
124 pr_err("VIF%u.%u: failed to delete VIF\n", vif->mac->macid,
125 vif->vifid);
126
127 /* Stop data */
128 netif_tx_stop_all_queues(netdev);
129 if (netif_carrier_ok(netdev))
130 netif_carrier_off(netdev);
131
132 if (netdev->reg_state == NETREG_REGISTERED)
133 unregister_netdevice(netdev);
134
135 vif->netdev->ieee80211_ptr = NULL;
136 vif->netdev = NULL;
137 vif->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
138 eth_zero_addr(vif->mac_addr);
139 eth_zero_addr(vif->bssid);
140
141 return 0;
142 }
143
144 static struct wireless_dev *qtnf_add_virtual_intf(struct wiphy *wiphy,
145 const char *name,
146 unsigned char name_assign_t,
147 enum nl80211_iftype type,
148 struct vif_params *params)
149 {
150 struct qtnf_wmac *mac;
151 struct qtnf_vif *vif;
152 u8 *mac_addr = NULL;
153
154 mac = wiphy_priv(wiphy);
155
156 if (!mac)
157 return ERR_PTR(-EFAULT);
158
159 switch (type) {
160 case NL80211_IFTYPE_STATION:
161 case NL80211_IFTYPE_AP:
162 vif = qtnf_mac_get_free_vif(mac);
163 if (!vif) {
164 pr_err("MAC%u: no free VIF available\n", mac->macid);
165 return ERR_PTR(-EFAULT);
166 }
167
168 eth_zero_addr(vif->mac_addr);
169 vif->bss_priority = QTNF_DEF_BSS_PRIORITY;
170 vif->wdev.wiphy = wiphy;
171 vif->wdev.iftype = type;
172 vif->sta_state = QTNF_STA_DISCONNECTED;
173 break;
174 default:
175 pr_err("MAC%u: unsupported IF type %d\n", mac->macid, type);
176 return ERR_PTR(-ENOTSUPP);
177 }
178
179 if (params)
180 mac_addr = params->macaddr;
181
182 if (qtnf_cmd_send_add_intf(vif, type, mac_addr)) {
183 pr_err("VIF%u.%u: failed to add VIF\n", mac->macid, vif->vifid);
184 goto err_cmd;
185 }
186
187 if (!is_valid_ether_addr(vif->mac_addr)) {
188 pr_err("VIF%u.%u: FW reported bad MAC: %pM\n",
189 mac->macid, vif->vifid, vif->mac_addr);
190 goto err_mac;
191 }
192
193 if (qtnf_core_net_attach(mac, vif, name, name_assign_t, type)) {
194 pr_err("VIF%u.%u: failed to attach netdev\n", mac->macid,
195 vif->vifid);
196 goto err_net;
197 }
198
199 vif->wdev.netdev = vif->netdev;
200 return &vif->wdev;
201
202 err_net:
203 vif->netdev = NULL;
204 err_mac:
205 qtnf_cmd_send_del_intf(vif);
206 err_cmd:
207 vif->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
208 eth_zero_addr(vif->mac_addr);
209 eth_zero_addr(vif->bssid);
210
211 return ERR_PTR(-EFAULT);
212 }
213
214 static int qtnf_mgmt_set_appie(struct qtnf_vif *vif,
215 const struct cfg80211_beacon_data *info)
216 {
217 int ret = 0;
218
219 if (!info->beacon_ies || !info->beacon_ies_len) {
220 ret = qtnf_cmd_send_mgmt_set_appie(vif, QLINK_IE_SET_BEACON_IES,
221 NULL, 0);
222 } else {
223 ret = qtnf_cmd_send_mgmt_set_appie(vif, QLINK_IE_SET_BEACON_IES,
224 info->beacon_ies,
225 info->beacon_ies_len);
226 }
227
228 if (ret)
229 goto out;
230
231 if (!info->proberesp_ies || !info->proberesp_ies_len) {
232 ret = qtnf_cmd_send_mgmt_set_appie(vif,
233 QLINK_IE_SET_PROBE_RESP_IES,
234 NULL, 0);
235 } else {
236 ret = qtnf_cmd_send_mgmt_set_appie(vif,
237 QLINK_IE_SET_PROBE_RESP_IES,
238 info->proberesp_ies,
239 info->proberesp_ies_len);
240 }
241
242 if (ret)
243 goto out;
244
245 if (!info->assocresp_ies || !info->assocresp_ies_len) {
246 ret = qtnf_cmd_send_mgmt_set_appie(vif,
247 QLINK_IE_SET_ASSOC_RESP,
248 NULL, 0);
249 } else {
250 ret = qtnf_cmd_send_mgmt_set_appie(vif,
251 QLINK_IE_SET_ASSOC_RESP,
252 info->assocresp_ies,
253 info->assocresp_ies_len);
254 }
255
256 out:
257 return ret;
258 }
259
260 static int qtnf_change_beacon(struct wiphy *wiphy, struct net_device *dev,
261 struct cfg80211_beacon_data *info)
262 {
263 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
264
265 return qtnf_mgmt_set_appie(vif, info);
266 }
267
268 static int qtnf_start_ap(struct wiphy *wiphy, struct net_device *dev,
269 struct cfg80211_ap_settings *settings)
270 {
271 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
272 int ret;
273
274 ret = qtnf_cmd_send_start_ap(vif, settings);
275 if (ret)
276 pr_err("VIF%u.%u: failed to start AP\n", vif->mac->macid,
277 vif->vifid);
278
279 return ret;
280 }
281
282 static int qtnf_stop_ap(struct wiphy *wiphy, struct net_device *dev)
283 {
284 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
285 int ret;
286
287 qtnf_scan_done(vif->mac, true);
288
289 ret = qtnf_cmd_send_stop_ap(vif);
290 if (ret) {
291 pr_err("VIF%u.%u: failed to stop AP operation in FW\n",
292 vif->mac->macid, vif->vifid);
293
294 netif_carrier_off(vif->netdev);
295 }
296
297 return ret;
298 }
299
300 static int qtnf_set_wiphy_params(struct wiphy *wiphy, u32 changed)
301 {
302 struct qtnf_wmac *mac = wiphy_priv(wiphy);
303 struct qtnf_vif *vif;
304 int ret;
305
306 vif = qtnf_mac_get_base_vif(mac);
307 if (!vif) {
308 pr_err("MAC%u: primary VIF is not configured\n", mac->macid);
309 return -EFAULT;
310 }
311
312 if (changed & (WIPHY_PARAM_RETRY_LONG | WIPHY_PARAM_RETRY_SHORT)) {
313 pr_err("MAC%u: can't modify retry params\n", mac->macid);
314 return -EOPNOTSUPP;
315 }
316
317 ret = qtnf_cmd_send_update_phy_params(mac, changed);
318 if (ret)
319 pr_err("MAC%u: failed to update PHY params\n", mac->macid);
320
321 return ret;
322 }
323
324 static void
325 qtnf_mgmt_frame_register(struct wiphy *wiphy, struct wireless_dev *wdev,
326 u16 frame_type, bool reg)
327 {
328 struct qtnf_vif *vif = qtnf_netdev_get_priv(wdev->netdev);
329 u16 mgmt_type;
330 u16 new_mask;
331 u16 qlink_frame_type = 0;
332
333 mgmt_type = (frame_type & IEEE80211_FCTL_STYPE) >> 4;
334
335 if (reg)
336 new_mask = vif->mgmt_frames_bitmask | BIT(mgmt_type);
337 else
338 new_mask = vif->mgmt_frames_bitmask & ~BIT(mgmt_type);
339
340 if (new_mask == vif->mgmt_frames_bitmask)
341 return;
342
343 switch (frame_type & IEEE80211_FCTL_STYPE) {
344 case IEEE80211_STYPE_REASSOC_REQ:
345 case IEEE80211_STYPE_ASSOC_REQ:
346 qlink_frame_type = QLINK_MGMT_FRAME_ASSOC_REQ;
347 break;
348 case IEEE80211_STYPE_AUTH:
349 qlink_frame_type = QLINK_MGMT_FRAME_AUTH;
350 break;
351 case IEEE80211_STYPE_PROBE_REQ:
352 qlink_frame_type = QLINK_MGMT_FRAME_PROBE_REQ;
353 break;
354 case IEEE80211_STYPE_ACTION:
355 qlink_frame_type = QLINK_MGMT_FRAME_ACTION;
356 break;
357 default:
358 pr_warn("VIF%u.%u: unsupported frame type: %X\n",
359 vif->mac->macid, vif->vifid,
360 (frame_type & IEEE80211_FCTL_STYPE) >> 4);
361 return;
362 }
363
364 if (qtnf_cmd_send_register_mgmt(vif, qlink_frame_type, reg)) {
365 pr_warn("VIF%u.%u: failed to %sregister mgmt frame type 0x%x\n",
366 vif->mac->macid, vif->vifid, reg ? "" : "un",
367 frame_type);
368 return;
369 }
370
371 vif->mgmt_frames_bitmask = new_mask;
372 pr_debug("VIF%u.%u: %sregistered mgmt frame type 0x%x\n",
373 vif->mac->macid, vif->vifid, reg ? "" : "un", frame_type);
374 }
375
376 static int
377 qtnf_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
378 struct cfg80211_mgmt_tx_params *params, u64 *cookie)
379 {
380 struct qtnf_vif *vif = qtnf_netdev_get_priv(wdev->netdev);
381 const struct ieee80211_mgmt *mgmt_frame = (void *)params->buf;
382 u32 short_cookie = prandom_u32();
383 u16 flags = 0;
384
385 *cookie = short_cookie;
386
387 if (params->offchan)
388 flags |= QLINK_MGMT_FRAME_TX_FLAG_OFFCHAN;
389
390 if (params->no_cck)
391 flags |= QLINK_MGMT_FRAME_TX_FLAG_NO_CCK;
392
393 if (params->dont_wait_for_ack)
394 flags |= QLINK_MGMT_FRAME_TX_FLAG_ACK_NOWAIT;
395
396 pr_debug("%s freq:%u; FC:%.4X; DA:%pM; len:%zu; C:%.8X; FL:%.4X\n",
397 wdev->netdev->name, params->chan->center_freq,
398 le16_to_cpu(mgmt_frame->frame_control), mgmt_frame->da,
399 params->len, short_cookie, flags);
400
401 return qtnf_cmd_send_mgmt_frame(vif, short_cookie, flags,
402 params->chan->center_freq,
403 params->buf, params->len);
404 }
405
406 static int
407 qtnf_get_station(struct wiphy *wiphy, struct net_device *dev,
408 const u8 *mac, struct station_info *sinfo)
409 {
410 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
411
412 return qtnf_cmd_get_sta_info(vif, mac, sinfo);
413 }
414
415 static int
416 qtnf_dump_station(struct wiphy *wiphy, struct net_device *dev,
417 int idx, u8 *mac, struct station_info *sinfo)
418 {
419 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
420 const struct qtnf_sta_node *sta_node;
421 int ret;
422
423 sta_node = qtnf_sta_list_lookup_index(&vif->sta_list, idx);
424
425 if (unlikely(!sta_node))
426 return -ENOENT;
427
428 ether_addr_copy(mac, sta_node->mac_addr);
429
430 ret = qtnf_cmd_get_sta_info(vif, sta_node->mac_addr, sinfo);
431
432 if (unlikely(ret == -ENOENT)) {
433 qtnf_sta_list_del(&vif->sta_list, mac);
434 cfg80211_del_sta(vif->netdev, mac, GFP_KERNEL);
435 sinfo->filled = 0;
436 }
437
438 return ret;
439 }
440
441 static int qtnf_add_key(struct wiphy *wiphy, struct net_device *dev,
442 u8 key_index, bool pairwise, const u8 *mac_addr,
443 struct key_params *params)
444 {
445 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
446 int ret;
447
448 ret = qtnf_cmd_send_add_key(vif, key_index, pairwise, mac_addr, params);
449 if (ret)
450 pr_err("VIF%u.%u: failed to add key: cipher=%x idx=%u pw=%u\n",
451 vif->mac->macid, vif->vifid, params->cipher, key_index,
452 pairwise);
453
454 return ret;
455 }
456
457 static int qtnf_del_key(struct wiphy *wiphy, struct net_device *dev,
458 u8 key_index, bool pairwise, const u8 *mac_addr)
459 {
460 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
461 int ret;
462
463 ret = qtnf_cmd_send_del_key(vif, key_index, pairwise, mac_addr);
464 if (ret)
465 pr_err("VIF%u.%u: failed to delete key: idx=%u pw=%u\n",
466 vif->mac->macid, vif->vifid, key_index, pairwise);
467
468 return ret;
469 }
470
471 static int qtnf_set_default_key(struct wiphy *wiphy, struct net_device *dev,
472 u8 key_index, bool unicast, bool multicast)
473 {
474 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
475 int ret;
476
477 ret = qtnf_cmd_send_set_default_key(vif, key_index, unicast, multicast);
478 if (ret)
479 pr_err("VIF%u.%u: failed to set dflt key: idx=%u uc=%u mc=%u\n",
480 vif->mac->macid, vif->vifid, key_index, unicast,
481 multicast);
482
483 return ret;
484 }
485
486 static int
487 qtnf_set_default_mgmt_key(struct wiphy *wiphy, struct net_device *dev,
488 u8 key_index)
489 {
490 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
491 int ret;
492
493 ret = qtnf_cmd_send_set_default_mgmt_key(vif, key_index);
494 if (ret)
495 pr_err("VIF%u.%u: failed to set default MGMT key: idx=%u\n",
496 vif->mac->macid, vif->vifid, key_index);
497
498 return ret;
499 }
500
501 static int
502 qtnf_change_station(struct wiphy *wiphy, struct net_device *dev,
503 const u8 *mac, struct station_parameters *params)
504 {
505 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
506 int ret;
507
508 ret = qtnf_cmd_send_change_sta(vif, mac, params);
509 if (ret)
510 pr_err("VIF%u.%u: failed to change STA %pM\n",
511 vif->mac->macid, vif->vifid, mac);
512
513 return ret;
514 }
515
516 static int
517 qtnf_del_station(struct wiphy *wiphy, struct net_device *dev,
518 struct station_del_parameters *params)
519 {
520 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
521 int ret;
522
523 if (params->mac &&
524 (vif->wdev.iftype == NL80211_IFTYPE_AP) &&
525 !is_broadcast_ether_addr(params->mac) &&
526 !qtnf_sta_list_lookup(&vif->sta_list, params->mac))
527 return 0;
528
529 ret = qtnf_cmd_send_del_sta(vif, params);
530 if (ret)
531 pr_err("VIF%u.%u: failed to delete STA %pM\n",
532 vif->mac->macid, vif->vifid, params->mac);
533 return ret;
534 }
535
536 static void qtnf_scan_timeout(struct timer_list *t)
537 {
538 struct qtnf_wmac *mac = from_timer(mac, t, scan_timeout);
539
540 pr_warn("mac%d scan timed out\n", mac->macid);
541 qtnf_scan_done(mac, true);
542 }
543
544 static int
545 qtnf_scan(struct wiphy *wiphy, struct cfg80211_scan_request *request)
546 {
547 struct qtnf_wmac *mac = wiphy_priv(wiphy);
548
549 mac->scan_req = request;
550
551 if (qtnf_cmd_send_scan(mac)) {
552 pr_err("MAC%u: failed to start scan\n", mac->macid);
553 mac->scan_req = NULL;
554 return -EFAULT;
555 }
556
557 mac->scan_timeout.function = qtnf_scan_timeout;
558 mod_timer(&mac->scan_timeout,
559 jiffies + QTNF_SCAN_TIMEOUT_SEC * HZ);
560
561 return 0;
562 }
563
564 static int
565 qtnf_connect(struct wiphy *wiphy, struct net_device *dev,
566 struct cfg80211_connect_params *sme)
567 {
568 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
569 int ret;
570
571 if (vif->wdev.iftype != NL80211_IFTYPE_STATION)
572 return -EOPNOTSUPP;
573
574 if (vif->sta_state != QTNF_STA_DISCONNECTED)
575 return -EBUSY;
576
577 if (sme->bssid)
578 ether_addr_copy(vif->bssid, sme->bssid);
579 else
580 eth_zero_addr(vif->bssid);
581
582 ret = qtnf_cmd_send_connect(vif, sme);
583 if (ret) {
584 pr_err("VIF%u.%u: failed to connect\n", vif->mac->macid,
585 vif->vifid);
586 return ret;
587 }
588
589 vif->sta_state = QTNF_STA_CONNECTING;
590 return 0;
591 }
592
593 static int
594 qtnf_disconnect(struct wiphy *wiphy, struct net_device *dev,
595 u16 reason_code)
596 {
597 struct qtnf_wmac *mac = wiphy_priv(wiphy);
598 struct qtnf_vif *vif;
599 int ret;
600
601 vif = qtnf_mac_get_base_vif(mac);
602 if (!vif) {
603 pr_err("MAC%u: primary VIF is not configured\n", mac->macid);
604 return -EFAULT;
605 }
606
607 if (vif->wdev.iftype != NL80211_IFTYPE_STATION)
608 return -EOPNOTSUPP;
609
610 if (vif->sta_state == QTNF_STA_DISCONNECTED)
611 return 0;
612
613 ret = qtnf_cmd_send_disconnect(vif, reason_code);
614 if (ret) {
615 pr_err("VIF%u.%u: failed to disconnect\n", mac->macid,
616 vif->vifid);
617 return ret;
618 }
619
620 vif->sta_state = QTNF_STA_DISCONNECTED;
621 return 0;
622 }
623
624 static int
625 qtnf_dump_survey(struct wiphy *wiphy, struct net_device *dev,
626 int idx, struct survey_info *survey)
627 {
628 struct qtnf_wmac *mac = wiphy_priv(wiphy);
629 struct wireless_dev *wdev = dev->ieee80211_ptr;
630 struct ieee80211_supported_band *sband;
631 const struct cfg80211_chan_def *chandef = &wdev->chandef;
632 struct ieee80211_channel *chan;
633 struct qtnf_chan_stats stats;
634 struct qtnf_vif *vif;
635 int ret;
636
637 vif = qtnf_netdev_get_priv(dev);
638
639 sband = wiphy->bands[NL80211_BAND_2GHZ];
640 if (sband && idx >= sband->n_channels) {
641 idx -= sband->n_channels;
642 sband = NULL;
643 }
644
645 if (!sband)
646 sband = wiphy->bands[NL80211_BAND_5GHZ];
647
648 if (!sband || idx >= sband->n_channels)
649 return -ENOENT;
650
651 chan = &sband->channels[idx];
652 memset(&stats, 0, sizeof(stats));
653
654 survey->channel = chan;
655 survey->filled = 0x0;
656
657 if (chandef->chan) {
658 if (chan->hw_value == chandef->chan->hw_value)
659 survey->filled = SURVEY_INFO_IN_USE;
660 }
661
662 ret = qtnf_cmd_get_chan_stats(mac, chan->hw_value, &stats);
663 switch (ret) {
664 case 0:
665 if (unlikely(stats.chan_num != chan->hw_value)) {
666 pr_err("received stats for channel %d instead of %d\n",
667 stats.chan_num, chan->hw_value);
668 ret = -EINVAL;
669 break;
670 }
671
672 survey->filled |= SURVEY_INFO_TIME |
673 SURVEY_INFO_TIME_SCAN |
674 SURVEY_INFO_TIME_BUSY |
675 SURVEY_INFO_TIME_RX |
676 SURVEY_INFO_TIME_TX |
677 SURVEY_INFO_NOISE_DBM;
678
679 survey->time_scan = stats.cca_try;
680 survey->time = stats.cca_try;
681 survey->time_tx = stats.cca_tx;
682 survey->time_rx = stats.cca_rx;
683 survey->time_busy = stats.cca_busy;
684 survey->noise = stats.chan_noise;
685 break;
686 case -ENOENT:
687 pr_debug("no stats for channel %u\n", chan->hw_value);
688 ret = 0;
689 break;
690 default:
691 pr_debug("failed to get chan(%d) stats from card\n",
692 chan->hw_value);
693 ret = -EINVAL;
694 break;
695 }
696
697 return ret;
698 }
699
700 static int
701 qtnf_get_channel(struct wiphy *wiphy, struct wireless_dev *wdev,
702 struct cfg80211_chan_def *chandef)
703 {
704 struct net_device *ndev = wdev->netdev;
705 struct qtnf_vif *vif;
706 int ret;
707
708 if (!ndev)
709 return -ENODEV;
710
711 vif = qtnf_netdev_get_priv(wdev->netdev);
712
713 ret = qtnf_cmd_get_channel(vif, chandef);
714 if (ret) {
715 pr_err("%s: failed to get channel: %d\n", ndev->name, ret);
716 goto out;
717 }
718
719 if (!cfg80211_chandef_valid(chandef)) {
720 pr_err("%s: bad chan freq1=%u freq2=%u bw=%u\n", ndev->name,
721 chandef->center_freq1, chandef->center_freq2,
722 chandef->width);
723 ret = -ENODATA;
724 }
725
726 out:
727 return ret;
728 }
729
730 static int qtnf_channel_switch(struct wiphy *wiphy, struct net_device *dev,
731 struct cfg80211_csa_settings *params)
732 {
733 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
734 int ret;
735
736 pr_debug("%s: chan(%u) count(%u) radar(%u) block_tx(%u)\n", dev->name,
737 params->chandef.chan->hw_value, params->count,
738 params->radar_required, params->block_tx);
739
740 if (!cfg80211_chandef_valid(&params->chandef)) {
741 pr_err("%s: invalid channel\n", dev->name);
742 return -EINVAL;
743 }
744
745 ret = qtnf_cmd_send_chan_switch(vif, params);
746 if (ret)
747 pr_warn("%s: failed to switch to channel (%u)\n",
748 dev->name, params->chandef.chan->hw_value);
749
750 return ret;
751 }
752
753 static struct cfg80211_ops qtn_cfg80211_ops = {
754 .add_virtual_intf = qtnf_add_virtual_intf,
755 .change_virtual_intf = qtnf_change_virtual_intf,
756 .del_virtual_intf = qtnf_del_virtual_intf,
757 .start_ap = qtnf_start_ap,
758 .change_beacon = qtnf_change_beacon,
759 .stop_ap = qtnf_stop_ap,
760 .set_wiphy_params = qtnf_set_wiphy_params,
761 .mgmt_frame_register = qtnf_mgmt_frame_register,
762 .mgmt_tx = qtnf_mgmt_tx,
763 .change_station = qtnf_change_station,
764 .del_station = qtnf_del_station,
765 .get_station = qtnf_get_station,
766 .dump_station = qtnf_dump_station,
767 .add_key = qtnf_add_key,
768 .del_key = qtnf_del_key,
769 .set_default_key = qtnf_set_default_key,
770 .set_default_mgmt_key = qtnf_set_default_mgmt_key,
771 .scan = qtnf_scan,
772 .connect = qtnf_connect,
773 .disconnect = qtnf_disconnect,
774 .dump_survey = qtnf_dump_survey,
775 .get_channel = qtnf_get_channel,
776 .channel_switch = qtnf_channel_switch
777 };
778
779 static void qtnf_cfg80211_reg_notifier(struct wiphy *wiphy_in,
780 struct regulatory_request *req)
781 {
782 struct qtnf_wmac *mac = wiphy_priv(wiphy_in);
783 struct qtnf_bus *bus = mac->bus;
784 struct wiphy *wiphy;
785 unsigned int mac_idx;
786 enum nl80211_band band;
787 int ret;
788
789 pr_debug("MAC%u: initiator=%d alpha=%c%c\n", mac->macid, req->initiator,
790 req->alpha2[0], req->alpha2[1]);
791
792 ret = qtnf_cmd_reg_notify(bus, req);
793 if (ret) {
794 if (ret != -EOPNOTSUPP && ret != -EALREADY)
795 pr_err("failed to update reg domain to %c%c\n",
796 req->alpha2[0], req->alpha2[1]);
797 return;
798 }
799
800 for (mac_idx = 0; mac_idx < QTNF_MAX_MAC; ++mac_idx) {
801 if (!(bus->hw_info.mac_bitmap & (1 << mac_idx)))
802 continue;
803
804 mac = bus->mac[mac_idx];
805 wiphy = priv_to_wiphy(mac);
806
807 for (band = 0; band < NUM_NL80211_BANDS; ++band) {
808 if (!wiphy->bands[band])
809 continue;
810
811 ret = qtnf_cmd_band_info_get(mac, wiphy->bands[band]);
812 if (ret)
813 pr_err("failed to get chan info for mac %u band %u\n",
814 mac_idx, band);
815 }
816 }
817 }
818
819 struct wiphy *qtnf_wiphy_allocate(struct qtnf_bus *bus)
820 {
821 struct wiphy *wiphy;
822
823 wiphy = wiphy_new(&qtn_cfg80211_ops, sizeof(struct qtnf_wmac));
824 if (!wiphy)
825 return NULL;
826
827 set_wiphy_dev(wiphy, bus->dev);
828
829 return wiphy;
830 }
831
832 static int qtnf_wiphy_setup_if_comb(struct wiphy *wiphy,
833 struct ieee80211_iface_combination *if_comb,
834 const struct qtnf_mac_info *mac_info)
835 {
836 size_t max_interfaces = 0;
837 u16 interface_modes = 0;
838 size_t i;
839
840 if (unlikely(!mac_info->limits || !mac_info->n_limits))
841 return -ENOENT;
842
843 if_comb->limits = mac_info->limits;
844 if_comb->n_limits = mac_info->n_limits;
845
846 for (i = 0; i < mac_info->n_limits; i++) {
847 max_interfaces += mac_info->limits[i].max;
848 interface_modes |= mac_info->limits[i].types;
849 }
850
851 if_comb->num_different_channels = 1;
852 if_comb->beacon_int_infra_match = true;
853 if_comb->max_interfaces = max_interfaces;
854 if_comb->radar_detect_widths = mac_info->radar_detect_widths;
855 wiphy->interface_modes = interface_modes;
856
857 return 0;
858 }
859
860 int qtnf_wiphy_register(struct qtnf_hw_info *hw_info, struct qtnf_wmac *mac)
861 {
862 struct wiphy *wiphy = priv_to_wiphy(mac);
863 struct ieee80211_iface_combination *iface_comb = NULL;
864 int ret;
865
866 if (!wiphy) {
867 pr_err("invalid wiphy pointer\n");
868 return -EFAULT;
869 }
870
871 iface_comb = kzalloc(sizeof(*iface_comb), GFP_KERNEL);
872 if (!iface_comb)
873 return -ENOMEM;
874
875 ret = qtnf_wiphy_setup_if_comb(wiphy, iface_comb, &mac->macinfo);
876 if (ret)
877 goto out;
878
879 wiphy->frag_threshold = mac->macinfo.frag_thr;
880 wiphy->rts_threshold = mac->macinfo.rts_thr;
881 wiphy->retry_short = mac->macinfo.sretry_limit;
882 wiphy->retry_long = mac->macinfo.lretry_limit;
883 wiphy->coverage_class = mac->macinfo.coverage_class;
884
885 wiphy->max_scan_ssids = QTNF_MAX_SSID_LIST_LENGTH;
886 wiphy->max_scan_ie_len = QTNF_MAX_VSIE_LEN;
887 wiphy->mgmt_stypes = qtnf_mgmt_stypes;
888 wiphy->max_remain_on_channel_duration = 5000;
889
890 wiphy->iface_combinations = iface_comb;
891 wiphy->n_iface_combinations = 1;
892 wiphy->max_num_csa_counters = 2;
893
894 /* Initialize cipher suits */
895 wiphy->cipher_suites = qtnf_cipher_suites;
896 wiphy->n_cipher_suites = ARRAY_SIZE(qtnf_cipher_suites);
897 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
898 wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
899 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD |
900 WIPHY_FLAG_AP_UAPSD |
901 WIPHY_FLAG_HAS_CHANNEL_SWITCH;
902
903 wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
904 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2;
905
906 wiphy->available_antennas_tx = mac->macinfo.num_tx_chain;
907 wiphy->available_antennas_rx = mac->macinfo.num_rx_chain;
908
909 wiphy->max_ap_assoc_sta = mac->macinfo.max_ap_assoc_sta;
910 wiphy->ht_capa_mod_mask = &mac->macinfo.ht_cap_mod_mask;
911 wiphy->vht_capa_mod_mask = &mac->macinfo.vht_cap_mod_mask;
912
913 ether_addr_copy(wiphy->perm_addr, mac->macaddr);
914
915 if (hw_info->hw_capab & QLINK_HW_CAPAB_STA_INACT_TIMEOUT)
916 wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER;
917
918 if (hw_info->hw_capab & QLINK_HW_CAPAB_REG_UPDATE) {
919 wiphy->regulatory_flags |= REGULATORY_STRICT_REG |
920 REGULATORY_CUSTOM_REG;
921 wiphy->reg_notifier = qtnf_cfg80211_reg_notifier;
922 wiphy_apply_custom_regulatory(wiphy, hw_info->rd);
923 } else {
924 wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED;
925 }
926
927 ret = wiphy_register(wiphy);
928 if (ret < 0)
929 goto out;
930
931 if (wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED)
932 ret = regulatory_set_wiphy_regd(wiphy, hw_info->rd);
933 else if (isalpha(hw_info->rd->alpha2[0]) &&
934 isalpha(hw_info->rd->alpha2[1]))
935 ret = regulatory_hint(wiphy, hw_info->rd->alpha2);
936
937 out:
938 if (ret) {
939 kfree(iface_comb);
940 return ret;
941 }
942
943 return 0;
944 }
945
946 void qtnf_netdev_updown(struct net_device *ndev, bool up)
947 {
948 struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev);
949
950 if (qtnf_cmd_send_updown_intf(vif, up))
951 pr_err("failed to send up/down command to FW\n");
952 }
953
954 void qtnf_virtual_intf_cleanup(struct net_device *ndev)
955 {
956 struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev);
957 struct qtnf_wmac *mac = wiphy_priv(vif->wdev.wiphy);
958
959 if (vif->wdev.iftype == NL80211_IFTYPE_STATION) {
960 switch (vif->sta_state) {
961 case QTNF_STA_DISCONNECTED:
962 break;
963 case QTNF_STA_CONNECTING:
964 cfg80211_connect_result(vif->netdev,
965 vif->bssid, NULL, 0,
966 NULL, 0,
967 WLAN_STATUS_UNSPECIFIED_FAILURE,
968 GFP_KERNEL);
969 qtnf_disconnect(vif->wdev.wiphy, ndev,
970 WLAN_REASON_DEAUTH_LEAVING);
971 break;
972 case QTNF_STA_CONNECTED:
973 cfg80211_disconnected(vif->netdev,
974 WLAN_REASON_DEAUTH_LEAVING,
975 NULL, 0, 1, GFP_KERNEL);
976 qtnf_disconnect(vif->wdev.wiphy, ndev,
977 WLAN_REASON_DEAUTH_LEAVING);
978 break;
979 }
980
981 vif->sta_state = QTNF_STA_DISCONNECTED;
982 }
983
984 qtnf_scan_done(mac, true);
985 }
986
987 void qtnf_cfg80211_vif_reset(struct qtnf_vif *vif)
988 {
989 if (vif->wdev.iftype == NL80211_IFTYPE_STATION) {
990 switch (vif->sta_state) {
991 case QTNF_STA_CONNECTING:
992 cfg80211_connect_result(vif->netdev,
993 vif->bssid, NULL, 0,
994 NULL, 0,
995 WLAN_STATUS_UNSPECIFIED_FAILURE,
996 GFP_KERNEL);
997 break;
998 case QTNF_STA_CONNECTED:
999 cfg80211_disconnected(vif->netdev,
1000 WLAN_REASON_DEAUTH_LEAVING,
1001 NULL, 0, 1, GFP_KERNEL);
1002 break;
1003 case QTNF_STA_DISCONNECTED:
1004 break;
1005 }
1006 }
1007
1008 cfg80211_shutdown_all_interfaces(vif->wdev.wiphy);
1009 vif->sta_state = QTNF_STA_DISCONNECTED;
1010 }
1011
1012 void qtnf_band_init_rates(struct ieee80211_supported_band *band)
1013 {
1014 switch (band->band) {
1015 case NL80211_BAND_2GHZ:
1016 band->bitrates = qtnf_rates_2g;
1017 band->n_bitrates = ARRAY_SIZE(qtnf_rates_2g);
1018 break;
1019 case NL80211_BAND_5GHZ:
1020 band->bitrates = qtnf_rates_5g;
1021 band->n_bitrates = ARRAY_SIZE(qtnf_rates_5g);
1022 break;
1023 default:
1024 band->bitrates = NULL;
1025 band->n_bitrates = 0;
1026 break;
1027 }
1028 }
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