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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
31static 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
47static 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
59static const u32 qtnf_cipher_suites[] = {
60 WLAN_CIPHER_SUITE_TKIP,
61 WLAN_CIPHER_SUITE_CCMP,
62 WLAN_CIPHER_SUITE_AES_CMAC,
63};
64
65
66static const struct ieee80211_txrx_stypes
67qtnf_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
83static int
84qtnf_validate_iface_combinations(struct wiphy *wiphy,
85 struct qtnf_vif *change_vif,
86 enum nl80211_iftype new_type)
87{
88 struct qtnf_wmac *mac;
89 struct qtnf_vif *vif;
90 int i;
91 int ret = 0;
92 struct iface_combination_params params = {
93 .num_different_channels = 1,
94 };
95
96 mac = wiphy_priv(wiphy);
97 if (!mac)
98 return -EFAULT;
99
100 for (i = 0; i < QTNF_MAX_INTF; i++) {
101 vif = &mac->iflist[i];
102 if (vif->wdev.iftype != NL80211_IFTYPE_UNSPECIFIED)
103 params.iftype_num[vif->wdev.iftype]++;
104 }
105
106 if (change_vif) {
107 params.iftype_num[new_type]++;
108 params.iftype_num[change_vif->wdev.iftype]--;
109 } else {
110 params.iftype_num[new_type]++;
111 }
112
113 ret = cfg80211_check_combinations(wiphy, ¶ms);
114
115 return ret;
116}
117
118static int
119qtnf_change_virtual_intf(struct wiphy *wiphy,
120 struct net_device *dev,
121 enum nl80211_iftype type,
122 struct vif_params *params)
123{
124 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
125 u8 *mac_addr;
126 int ret;
127
128 ret = qtnf_validate_iface_combinations(wiphy, vif, type);
129 if (ret) {
130 pr_err("VIF%u.%u combination check: failed to set type %d\n",
131 vif->mac->macid, vif->vifid, type);
132 return ret;
133 }
134
135 if (params)
136 mac_addr = params->macaddr;
137 else
138 mac_addr = NULL;
139
140 qtnf_scan_done(vif->mac, true);
141
142 ret = qtnf_cmd_send_change_intf_type(vif, type, mac_addr);
143 if (ret) {
144 pr_err("VIF%u.%u: failed to change type to %d\n",
145 vif->mac->macid, vif->vifid, type);
146 return ret;
147 }
148
149 vif->wdev.iftype = type;
150 return 0;
151}
152
153int qtnf_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
154{
155 struct net_device *netdev = wdev->netdev;
156 struct qtnf_vif *vif;
157
158 if (WARN_ON(!netdev))
159 return -EFAULT;
160
161 vif = qtnf_netdev_get_priv(wdev->netdev);
162
163 qtnf_scan_done(vif->mac, true);
164
165
166 netif_tx_stop_all_queues(netdev);
167 if (netif_carrier_ok(netdev))
168 netif_carrier_off(netdev);
169
170 if (netdev->reg_state == NETREG_REGISTERED)
171 unregister_netdevice(netdev);
172
173 if (qtnf_cmd_send_del_intf(vif))
174 pr_err("VIF%u.%u: failed to delete VIF\n", vif->mac->macid,
175 vif->vifid);
176
177 vif->netdev->ieee80211_ptr = NULL;
178 vif->netdev = NULL;
179 vif->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
180
181 return 0;
182}
183
184static struct wireless_dev *qtnf_add_virtual_intf(struct wiphy *wiphy,
185 const char *name,
186 unsigned char name_assign_t,
187 enum nl80211_iftype type,
188 struct vif_params *params)
189{
190 struct qtnf_wmac *mac;
191 struct qtnf_vif *vif;
192 u8 *mac_addr = NULL;
193 int ret;
194
195 mac = wiphy_priv(wiphy);
196
197 if (!mac)
198 return ERR_PTR(-EFAULT);
199
200 ret = qtnf_validate_iface_combinations(wiphy, NULL, type);
201 if (ret) {
202 pr_err("MAC%u invalid combination: failed to add type %d\n",
203 mac->macid, type);
204 return ERR_PTR(ret);
205 }
206
207 switch (type) {
208 case NL80211_IFTYPE_STATION:
209 case NL80211_IFTYPE_AP:
210 vif = qtnf_mac_get_free_vif(mac);
211 if (!vif) {
212 pr_err("MAC%u: no free VIF available\n", mac->macid);
213 return ERR_PTR(-EFAULT);
214 }
215
216 eth_zero_addr(vif->mac_addr);
217 eth_zero_addr(vif->bssid);
218 vif->bss_priority = QTNF_DEF_BSS_PRIORITY;
219 memset(&vif->wdev, 0, sizeof(vif->wdev));
220 vif->wdev.wiphy = wiphy;
221 vif->wdev.iftype = type;
222 break;
223 default:
224 pr_err("MAC%u: unsupported IF type %d\n", mac->macid, type);
225 return ERR_PTR(-ENOTSUPP);
226 }
227
228 if (params)
229 mac_addr = params->macaddr;
230
231 ret = qtnf_cmd_send_add_intf(vif, type, mac_addr);
232 if (ret) {
233 pr_err("VIF%u.%u: failed to add VIF %pM\n",
234 mac->macid, vif->vifid, mac_addr);
235 goto err_cmd;
236 }
237
238 if (!is_valid_ether_addr(vif->mac_addr)) {
239 pr_err("VIF%u.%u: FW reported bad MAC: %pM\n",
240 mac->macid, vif->vifid, vif->mac_addr);
241 ret = -EINVAL;
242 goto err_mac;
243 }
244
245 ret = qtnf_core_net_attach(mac, vif, name, name_assign_t);
246 if (ret) {
247 pr_err("VIF%u.%u: failed to attach netdev\n", mac->macid,
248 vif->vifid);
249 goto err_net;
250 }
251
252 vif->wdev.netdev = vif->netdev;
253 return &vif->wdev;
254
255err_net:
256 vif->netdev = NULL;
257err_mac:
258 qtnf_cmd_send_del_intf(vif);
259err_cmd:
260 vif->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
261
262 return ERR_PTR(ret);
263}
264
265static int qtnf_mgmt_set_appie(struct qtnf_vif *vif,
266 const struct cfg80211_beacon_data *info)
267{
268 int ret = 0;
269
270 if (!info->beacon_ies || !info->beacon_ies_len) {
271 ret = qtnf_cmd_send_mgmt_set_appie(vif, QLINK_IE_SET_BEACON_IES,
272 NULL, 0);
273 } else {
274 ret = qtnf_cmd_send_mgmt_set_appie(vif, QLINK_IE_SET_BEACON_IES,
275 info->beacon_ies,
276 info->beacon_ies_len);
277 }
278
279 if (ret)
280 goto out;
281
282 if (!info->proberesp_ies || !info->proberesp_ies_len) {
283 ret = qtnf_cmd_send_mgmt_set_appie(vif,
284 QLINK_IE_SET_PROBE_RESP_IES,
285 NULL, 0);
286 } else {
287 ret = qtnf_cmd_send_mgmt_set_appie(vif,
288 QLINK_IE_SET_PROBE_RESP_IES,
289 info->proberesp_ies,
290 info->proberesp_ies_len);
291 }
292
293 if (ret)
294 goto out;
295
296 if (!info->assocresp_ies || !info->assocresp_ies_len) {
297 ret = qtnf_cmd_send_mgmt_set_appie(vif,
298 QLINK_IE_SET_ASSOC_RESP,
299 NULL, 0);
300 } else {
301 ret = qtnf_cmd_send_mgmt_set_appie(vif,
302 QLINK_IE_SET_ASSOC_RESP,
303 info->assocresp_ies,
304 info->assocresp_ies_len);
305 }
306
307out:
308 return ret;
309}
310
311static int qtnf_change_beacon(struct wiphy *wiphy, struct net_device *dev,
312 struct cfg80211_beacon_data *info)
313{
314 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
315
316 return qtnf_mgmt_set_appie(vif, info);
317}
318
319static int qtnf_start_ap(struct wiphy *wiphy, struct net_device *dev,
320 struct cfg80211_ap_settings *settings)
321{
322 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
323 int ret;
324
325 ret = qtnf_cmd_send_start_ap(vif, settings);
326 if (ret)
327 pr_err("VIF%u.%u: failed to start AP\n", vif->mac->macid,
328 vif->vifid);
329
330 return ret;
331}
332
333static int qtnf_stop_ap(struct wiphy *wiphy, struct net_device *dev)
334{
335 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
336 int ret;
337
338 qtnf_scan_done(vif->mac, true);
339
340 ret = qtnf_cmd_send_stop_ap(vif);
341 if (ret)
342 pr_err("VIF%u.%u: failed to stop AP operation in FW\n",
343 vif->mac->macid, vif->vifid);
344
345 netif_carrier_off(vif->netdev);
346
347 return ret;
348}
349
350static int qtnf_set_wiphy_params(struct wiphy *wiphy, u32 changed)
351{
352 struct qtnf_wmac *mac = wiphy_priv(wiphy);
353 struct qtnf_vif *vif;
354 int ret;
355
356 vif = qtnf_mac_get_base_vif(mac);
357 if (!vif) {
358 pr_err("MAC%u: primary VIF is not configured\n", mac->macid);
359 return -EFAULT;
360 }
361
362 if (changed & (WIPHY_PARAM_RETRY_LONG | WIPHY_PARAM_RETRY_SHORT)) {
363 pr_err("MAC%u: can't modify retry params\n", mac->macid);
364 return -EOPNOTSUPP;
365 }
366
367 ret = qtnf_cmd_send_update_phy_params(mac, changed);
368 if (ret)
369 pr_err("MAC%u: failed to update PHY params\n", mac->macid);
370
371 return ret;
372}
373
374static void
375qtnf_mgmt_frame_register(struct wiphy *wiphy, struct wireless_dev *wdev,
376 u16 frame_type, bool reg)
377{
378 struct qtnf_vif *vif = qtnf_netdev_get_priv(wdev->netdev);
379 u16 mgmt_type;
380 u16 new_mask;
381 u16 qlink_frame_type = 0;
382
383 mgmt_type = (frame_type & IEEE80211_FCTL_STYPE) >> 4;
384
385 if (reg)
386 new_mask = vif->mgmt_frames_bitmask | BIT(mgmt_type);
387 else
388 new_mask = vif->mgmt_frames_bitmask & ~BIT(mgmt_type);
389
390 if (new_mask == vif->mgmt_frames_bitmask)
391 return;
392
393 switch (frame_type & IEEE80211_FCTL_STYPE) {
394 case IEEE80211_STYPE_REASSOC_REQ:
395 case IEEE80211_STYPE_ASSOC_REQ:
396 qlink_frame_type = QLINK_MGMT_FRAME_ASSOC_REQ;
397 break;
398 case IEEE80211_STYPE_AUTH:
399 qlink_frame_type = QLINK_MGMT_FRAME_AUTH;
400 break;
401 case IEEE80211_STYPE_PROBE_REQ:
402 qlink_frame_type = QLINK_MGMT_FRAME_PROBE_REQ;
403 break;
404 case IEEE80211_STYPE_ACTION:
405 qlink_frame_type = QLINK_MGMT_FRAME_ACTION;
406 break;
407 default:
408 pr_warn("VIF%u.%u: unsupported frame type: %X\n",
409 vif->mac->macid, vif->vifid,
410 (frame_type & IEEE80211_FCTL_STYPE) >> 4);
411 return;
412 }
413
414 if (qtnf_cmd_send_register_mgmt(vif, qlink_frame_type, reg)) {
415 pr_warn("VIF%u.%u: failed to %sregister mgmt frame type 0x%x\n",
416 vif->mac->macid, vif->vifid, reg ? "" : "un",
417 frame_type);
418 return;
419 }
420
421 vif->mgmt_frames_bitmask = new_mask;
422 pr_debug("VIF%u.%u: %sregistered mgmt frame type 0x%x\n",
423 vif->mac->macid, vif->vifid, reg ? "" : "un", frame_type);
424}
425
426static int
427qtnf_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
428 struct cfg80211_mgmt_tx_params *params, u64 *cookie)
429{
430 struct qtnf_vif *vif = qtnf_netdev_get_priv(wdev->netdev);
431 const struct ieee80211_mgmt *mgmt_frame = (void *)params->buf;
432 u32 short_cookie = prandom_u32();
433 u16 flags = 0;
434 u16 freq;
435
436 *cookie = short_cookie;
437
438 if (params->offchan)
439 flags |= QLINK_MGMT_FRAME_TX_FLAG_OFFCHAN;
440
441 if (params->no_cck)
442 flags |= QLINK_MGMT_FRAME_TX_FLAG_NO_CCK;
443
444 if (params->dont_wait_for_ack)
445 flags |= QLINK_MGMT_FRAME_TX_FLAG_ACK_NOWAIT;
446
447
448
449
450 if (params->chan)
451 freq = params->chan->center_freq;
452 else
453 freq = 0;
454
455 pr_debug("%s freq:%u; FC:%.4X; DA:%pM; len:%zu; C:%.8X; FL:%.4X\n",
456 wdev->netdev->name, freq,
457 le16_to_cpu(mgmt_frame->frame_control), mgmt_frame->da,
458 params->len, short_cookie, flags);
459
460 return qtnf_cmd_send_mgmt_frame(vif, short_cookie, flags,
461 freq,
462 params->buf, params->len);
463}
464
465static int
466qtnf_get_station(struct wiphy *wiphy, struct net_device *dev,
467 const u8 *mac, struct station_info *sinfo)
468{
469 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
470
471 sinfo->generation = vif->generation;
472 return qtnf_cmd_get_sta_info(vif, mac, sinfo);
473}
474
475static int
476qtnf_dump_station(struct wiphy *wiphy, struct net_device *dev,
477 int idx, u8 *mac, struct station_info *sinfo)
478{
479 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
480 const struct qtnf_sta_node *sta_node;
481 int ret;
482
483 switch (vif->wdev.iftype) {
484 case NL80211_IFTYPE_STATION:
485 if (idx != 0 || !vif->wdev.current_bss)
486 return -ENOENT;
487
488 ether_addr_copy(mac, vif->bssid);
489 break;
490 case NL80211_IFTYPE_AP:
491 sta_node = qtnf_sta_list_lookup_index(&vif->sta_list, idx);
492 if (unlikely(!sta_node))
493 return -ENOENT;
494
495 ether_addr_copy(mac, sta_node->mac_addr);
496 break;
497 default:
498 return -ENOTSUPP;
499 }
500
501 ret = qtnf_cmd_get_sta_info(vif, mac, sinfo);
502
503 if (vif->wdev.iftype == NL80211_IFTYPE_AP) {
504 if (ret == -ENOENT) {
505 cfg80211_del_sta(vif->netdev, mac, GFP_KERNEL);
506 sinfo->filled = 0;
507 }
508 }
509
510 sinfo->generation = vif->generation;
511
512 return ret;
513}
514
515static int qtnf_add_key(struct wiphy *wiphy, struct net_device *dev,
516 u8 key_index, bool pairwise, const u8 *mac_addr,
517 struct key_params *params)
518{
519 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
520 int ret;
521
522 ret = qtnf_cmd_send_add_key(vif, key_index, pairwise, mac_addr, params);
523 if (ret)
524 pr_err("VIF%u.%u: failed to add key: cipher=%x idx=%u pw=%u\n",
525 vif->mac->macid, vif->vifid, params->cipher, key_index,
526 pairwise);
527
528 return ret;
529}
530
531static int qtnf_del_key(struct wiphy *wiphy, struct net_device *dev,
532 u8 key_index, bool pairwise, const u8 *mac_addr)
533{
534 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
535 int ret;
536
537 ret = qtnf_cmd_send_del_key(vif, key_index, pairwise, mac_addr);
538 if (ret) {
539 if (ret == -ENOENT) {
540 pr_debug("VIF%u.%u: key index %d out of bounds\n",
541 vif->mac->macid, vif->vifid, key_index);
542 } else {
543 pr_err("VIF%u.%u: failed to delete key: idx=%u pw=%u\n",
544 vif->mac->macid, vif->vifid,
545 key_index, pairwise);
546 }
547 }
548
549 return ret;
550}
551
552static int qtnf_set_default_key(struct wiphy *wiphy, struct net_device *dev,
553 u8 key_index, bool unicast, bool multicast)
554{
555 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
556 int ret;
557
558 ret = qtnf_cmd_send_set_default_key(vif, key_index, unicast, multicast);
559 if (ret)
560 pr_err("VIF%u.%u: failed to set dflt key: idx=%u uc=%u mc=%u\n",
561 vif->mac->macid, vif->vifid, key_index, unicast,
562 multicast);
563
564 return ret;
565}
566
567static int
568qtnf_set_default_mgmt_key(struct wiphy *wiphy, struct net_device *dev,
569 u8 key_index)
570{
571 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
572 int ret;
573
574 ret = qtnf_cmd_send_set_default_mgmt_key(vif, key_index);
575 if (ret)
576 pr_err("VIF%u.%u: failed to set default MGMT key: idx=%u\n",
577 vif->mac->macid, vif->vifid, key_index);
578
579 return ret;
580}
581
582static int
583qtnf_change_station(struct wiphy *wiphy, struct net_device *dev,
584 const u8 *mac, struct station_parameters *params)
585{
586 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
587 int ret;
588
589 ret = qtnf_cmd_send_change_sta(vif, mac, params);
590 if (ret)
591 pr_err("VIF%u.%u: failed to change STA %pM\n",
592 vif->mac->macid, vif->vifid, mac);
593
594 return ret;
595}
596
597static int
598qtnf_del_station(struct wiphy *wiphy, struct net_device *dev,
599 struct station_del_parameters *params)
600{
601 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
602 int ret;
603
604 if (params->mac &&
605 (vif->wdev.iftype == NL80211_IFTYPE_AP) &&
606 !is_broadcast_ether_addr(params->mac) &&
607 !qtnf_sta_list_lookup(&vif->sta_list, params->mac))
608 return 0;
609
610 ret = qtnf_cmd_send_del_sta(vif, params);
611 if (ret)
612 pr_err("VIF%u.%u: failed to delete STA %pM\n",
613 vif->mac->macid, vif->vifid, params->mac);
614
615 return ret;
616}
617
618static int
619qtnf_scan(struct wiphy *wiphy, struct cfg80211_scan_request *request)
620{
621 struct qtnf_wmac *mac = wiphy_priv(wiphy);
622 int ret;
623
624 cancel_delayed_work_sync(&mac->scan_timeout);
625
626 mac->scan_req = request;
627
628 ret = qtnf_cmd_send_scan(mac);
629 if (ret) {
630 pr_err("MAC%u: failed to start scan\n", mac->macid);
631 mac->scan_req = NULL;
632 goto out;
633 }
634
635 pr_debug("MAC%u: scan started\n", mac->macid);
636 queue_delayed_work(mac->bus->workqueue, &mac->scan_timeout,
637 QTNF_SCAN_TIMEOUT_SEC * HZ);
638
639out:
640 return ret;
641}
642
643static int
644qtnf_connect(struct wiphy *wiphy, struct net_device *dev,
645 struct cfg80211_connect_params *sme)
646{
647 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
648 int ret;
649
650 if (vif->wdev.iftype != NL80211_IFTYPE_STATION)
651 return -EOPNOTSUPP;
652
653 if (sme->bssid)
654 ether_addr_copy(vif->bssid, sme->bssid);
655 else
656 eth_zero_addr(vif->bssid);
657
658 ret = qtnf_cmd_send_connect(vif, sme);
659 if (ret) {
660 pr_err("VIF%u.%u: failed to connect\n",
661 vif->mac->macid, vif->vifid);
662 goto out;
663 }
664
665out:
666 return ret;
667}
668
669static int
670qtnf_disconnect(struct wiphy *wiphy, struct net_device *dev,
671 u16 reason_code)
672{
673 struct qtnf_wmac *mac = wiphy_priv(wiphy);
674 struct qtnf_vif *vif;
675 int ret = 0;
676
677 vif = qtnf_mac_get_base_vif(mac);
678 if (!vif) {
679 pr_err("MAC%u: primary VIF is not configured\n", mac->macid);
680 return -EFAULT;
681 }
682
683 if (vif->wdev.iftype != NL80211_IFTYPE_STATION) {
684 ret = -EOPNOTSUPP;
685 goto out;
686 }
687
688 ret = qtnf_cmd_send_disconnect(vif, reason_code);
689 if (ret)
690 pr_err("VIF%u.%u: failed to disconnect\n",
691 mac->macid, vif->vifid);
692
693 if (vif->wdev.current_bss) {
694 netif_carrier_off(vif->netdev);
695 cfg80211_disconnected(vif->netdev, reason_code,
696 NULL, 0, true, GFP_KERNEL);
697 }
698
699out:
700 return ret;
701}
702
703static int
704qtnf_dump_survey(struct wiphy *wiphy, struct net_device *dev,
705 int idx, struct survey_info *survey)
706{
707 struct qtnf_wmac *mac = wiphy_priv(wiphy);
708 struct wireless_dev *wdev = dev->ieee80211_ptr;
709 struct ieee80211_supported_band *sband;
710 const struct cfg80211_chan_def *chandef = &wdev->chandef;
711 struct ieee80211_channel *chan;
712 struct qtnf_chan_stats stats;
713 int ret;
714
715 sband = wiphy->bands[NL80211_BAND_2GHZ];
716 if (sband && idx >= sband->n_channels) {
717 idx -= sband->n_channels;
718 sband = NULL;
719 }
720
721 if (!sband)
722 sband = wiphy->bands[NL80211_BAND_5GHZ];
723
724 if (!sband || idx >= sband->n_channels)
725 return -ENOENT;
726
727 chan = &sband->channels[idx];
728 memset(&stats, 0, sizeof(stats));
729
730 survey->channel = chan;
731 survey->filled = 0x0;
732
733 if (chandef->chan) {
734 if (chan->hw_value == chandef->chan->hw_value)
735 survey->filled = SURVEY_INFO_IN_USE;
736 }
737
738 ret = qtnf_cmd_get_chan_stats(mac, chan->hw_value, &stats);
739 switch (ret) {
740 case 0:
741 if (unlikely(stats.chan_num != chan->hw_value)) {
742 pr_err("received stats for channel %d instead of %d\n",
743 stats.chan_num, chan->hw_value);
744 ret = -EINVAL;
745 break;
746 }
747
748 survey->filled |= SURVEY_INFO_TIME |
749 SURVEY_INFO_TIME_SCAN |
750 SURVEY_INFO_TIME_BUSY |
751 SURVEY_INFO_TIME_RX |
752 SURVEY_INFO_TIME_TX |
753 SURVEY_INFO_NOISE_DBM;
754
755 survey->time_scan = stats.cca_try;
756 survey->time = stats.cca_try;
757 survey->time_tx = stats.cca_tx;
758 survey->time_rx = stats.cca_rx;
759 survey->time_busy = stats.cca_busy;
760 survey->noise = stats.chan_noise;
761 break;
762 case -ENOENT:
763 pr_debug("no stats for channel %u\n", chan->hw_value);
764 ret = 0;
765 break;
766 default:
767 pr_debug("failed to get chan(%d) stats from card\n",
768 chan->hw_value);
769 break;
770 }
771
772 return ret;
773}
774
775static int
776qtnf_get_channel(struct wiphy *wiphy, struct wireless_dev *wdev,
777 struct cfg80211_chan_def *chandef)
778{
779 struct net_device *ndev = wdev->netdev;
780 struct qtnf_vif *vif;
781 int ret;
782
783 if (!ndev)
784 return -ENODEV;
785
786 vif = qtnf_netdev_get_priv(wdev->netdev);
787
788 ret = qtnf_cmd_get_channel(vif, chandef);
789 if (ret) {
790 pr_err("%s: failed to get channel: %d\n", ndev->name, ret);
791 ret = -ENODATA;
792 goto out;
793 }
794
795 if (!cfg80211_chandef_valid(chandef)) {
796 pr_err("%s: bad channel freq=%u cf1=%u cf2=%u bw=%u\n",
797 ndev->name, chandef->chan->center_freq,
798 chandef->center_freq1, chandef->center_freq2,
799 chandef->width);
800 ret = -ENODATA;
801 goto out;
802 }
803
804out:
805 return ret;
806}
807
808static int qtnf_channel_switch(struct wiphy *wiphy, struct net_device *dev,
809 struct cfg80211_csa_settings *params)
810{
811 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
812 int ret;
813
814 pr_debug("%s: chan(%u) count(%u) radar(%u) block_tx(%u)\n", dev->name,
815 params->chandef.chan->hw_value, params->count,
816 params->radar_required, params->block_tx);
817
818 if (!cfg80211_chandef_valid(¶ms->chandef)) {
819 pr_err("%s: invalid channel\n", dev->name);
820 return -EINVAL;
821 }
822
823 ret = qtnf_cmd_send_chan_switch(vif, params);
824 if (ret)
825 pr_warn("%s: failed to switch to channel (%u)\n",
826 dev->name, params->chandef.chan->hw_value);
827
828 return ret;
829}
830
831static int qtnf_start_radar_detection(struct wiphy *wiphy,
832 struct net_device *ndev,
833 struct cfg80211_chan_def *chandef,
834 u32 cac_time_ms)
835{
836 struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev);
837 int ret;
838
839 if (wiphy_ext_feature_isset(wiphy, NL80211_EXT_FEATURE_DFS_OFFLOAD))
840 return -ENOTSUPP;
841
842 ret = qtnf_cmd_start_cac(vif, chandef, cac_time_ms);
843 if (ret)
844 pr_err("%s: failed to start CAC ret=%d\n", ndev->name, ret);
845
846 return ret;
847}
848
849static int qtnf_set_mac_acl(struct wiphy *wiphy,
850 struct net_device *dev,
851 const struct cfg80211_acl_data *params)
852{
853 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
854 int ret;
855
856 ret = qtnf_cmd_set_mac_acl(vif, params);
857 if (ret)
858 pr_err("%s: failed to set mac ACL ret=%d\n", dev->name, ret);
859
860 return ret;
861}
862
863static int qtnf_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
864 bool enabled, int timeout)
865{
866 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
867 int ret;
868
869 ret = qtnf_cmd_send_pm_set(vif, enabled ? QLINK_PM_AUTO_STANDBY :
870 QLINK_PM_OFF, timeout);
871 if (ret)
872 pr_err("%s: failed to set PM mode ret=%d\n", dev->name, ret);
873
874 return ret;
875}
876
877#ifdef CONFIG_PM
878static int qtnf_suspend(struct wiphy *wiphy, struct cfg80211_wowlan *wowlan)
879{
880 struct qtnf_wmac *mac = wiphy_priv(wiphy);
881 struct qtnf_vif *vif;
882 int ret = 0;
883
884 vif = qtnf_mac_get_base_vif(mac);
885 if (!vif) {
886 pr_err("MAC%u: primary VIF is not configured\n", mac->macid);
887 ret = -EFAULT;
888 goto exit;
889 }
890
891 if (!wowlan) {
892 pr_debug("WoWLAN triggers are not enabled\n");
893 qtnf_virtual_intf_cleanup(vif->netdev);
894 goto exit;
895 }
896
897 qtnf_scan_done(vif->mac, true);
898
899 ret = qtnf_cmd_send_wowlan_set(vif, wowlan);
900 if (ret) {
901 pr_err("MAC%u: failed to set WoWLAN triggers\n",
902 mac->macid);
903 goto exit;
904 }
905
906exit:
907 return ret;
908}
909
910static int qtnf_resume(struct wiphy *wiphy)
911{
912 struct qtnf_wmac *mac = wiphy_priv(wiphy);
913 struct qtnf_vif *vif;
914 int ret = 0;
915
916 vif = qtnf_mac_get_base_vif(mac);
917 if (!vif) {
918 pr_err("MAC%u: primary VIF is not configured\n", mac->macid);
919 ret = -EFAULT;
920 goto exit;
921 }
922
923 ret = qtnf_cmd_send_wowlan_set(vif, NULL);
924 if (ret) {
925 pr_err("MAC%u: failed to reset WoWLAN triggers\n",
926 mac->macid);
927 goto exit;
928 }
929
930exit:
931 return ret;
932}
933
934static void qtnf_set_wakeup(struct wiphy *wiphy, bool enabled)
935{
936 struct qtnf_wmac *mac = wiphy_priv(wiphy);
937 struct qtnf_bus *bus = mac->bus;
938
939 device_set_wakeup_enable(bus->dev, enabled);
940}
941#endif
942
943static struct cfg80211_ops qtn_cfg80211_ops = {
944 .add_virtual_intf = qtnf_add_virtual_intf,
945 .change_virtual_intf = qtnf_change_virtual_intf,
946 .del_virtual_intf = qtnf_del_virtual_intf,
947 .start_ap = qtnf_start_ap,
948 .change_beacon = qtnf_change_beacon,
949 .stop_ap = qtnf_stop_ap,
950 .set_wiphy_params = qtnf_set_wiphy_params,
951 .mgmt_frame_register = qtnf_mgmt_frame_register,
952 .mgmt_tx = qtnf_mgmt_tx,
953 .change_station = qtnf_change_station,
954 .del_station = qtnf_del_station,
955 .get_station = qtnf_get_station,
956 .dump_station = qtnf_dump_station,
957 .add_key = qtnf_add_key,
958 .del_key = qtnf_del_key,
959 .set_default_key = qtnf_set_default_key,
960 .set_default_mgmt_key = qtnf_set_default_mgmt_key,
961 .scan = qtnf_scan,
962 .connect = qtnf_connect,
963 .disconnect = qtnf_disconnect,
964 .dump_survey = qtnf_dump_survey,
965 .get_channel = qtnf_get_channel,
966 .channel_switch = qtnf_channel_switch,
967 .start_radar_detection = qtnf_start_radar_detection,
968 .set_mac_acl = qtnf_set_mac_acl,
969 .set_power_mgmt = qtnf_set_power_mgmt,
970#ifdef CONFIG_PM
971 .suspend = qtnf_suspend,
972 .resume = qtnf_resume,
973 .set_wakeup = qtnf_set_wakeup,
974#endif
975};
976
977static void qtnf_cfg80211_reg_notifier(struct wiphy *wiphy_in,
978 struct regulatory_request *req)
979{
980 struct qtnf_wmac *mac = wiphy_priv(wiphy_in);
981 struct qtnf_bus *bus = mac->bus;
982 struct wiphy *wiphy;
983 unsigned int mac_idx;
984 enum nl80211_band band;
985 int ret;
986
987 pr_debug("MAC%u: initiator=%d alpha=%c%c\n", mac->macid, req->initiator,
988 req->alpha2[0], req->alpha2[1]);
989
990 ret = qtnf_cmd_reg_notify(bus, req);
991 if (ret) {
992 if (ret == -EOPNOTSUPP) {
993 pr_warn("reg update not supported\n");
994 } else if (ret == -EALREADY) {
995 pr_info("regulatory domain is already set to %c%c",
996 req->alpha2[0], req->alpha2[1]);
997 } else {
998 pr_err("failed to update reg domain to %c%c\n",
999 req->alpha2[0], req->alpha2[1]);
1000 }
1001
1002 return;
1003 }
1004
1005 for (mac_idx = 0; mac_idx < QTNF_MAX_MAC; ++mac_idx) {
1006 if (!(bus->hw_info.mac_bitmap & (1 << mac_idx)))
1007 continue;
1008
1009 mac = bus->mac[mac_idx];
1010 if (!mac)
1011 continue;
1012
1013 wiphy = priv_to_wiphy(mac);
1014
1015 for (band = 0; band < NUM_NL80211_BANDS; ++band) {
1016 if (!wiphy->bands[band])
1017 continue;
1018
1019 ret = qtnf_cmd_band_info_get(mac, wiphy->bands[band]);
1020 if (ret)
1021 pr_err("failed to get chan info for mac %u band %u\n",
1022 mac_idx, band);
1023 }
1024 }
1025}
1026
1027struct wiphy *qtnf_wiphy_allocate(struct qtnf_bus *bus)
1028{
1029 struct wiphy *wiphy;
1030
1031 if (bus->hw_info.hw_capab & QLINK_HW_CAPAB_DFS_OFFLOAD)
1032 qtn_cfg80211_ops.start_radar_detection = NULL;
1033
1034 if (!(bus->hw_info.hw_capab & QLINK_HW_CAPAB_PWR_MGMT))
1035 qtn_cfg80211_ops.set_power_mgmt = NULL;
1036
1037 wiphy = wiphy_new(&qtn_cfg80211_ops, sizeof(struct qtnf_wmac));
1038 if (!wiphy)
1039 return NULL;
1040
1041 set_wiphy_dev(wiphy, bus->dev);
1042
1043 return wiphy;
1044}
1045
1046static int
1047qtnf_wiphy_setup_if_comb(struct wiphy *wiphy, struct qtnf_mac_info *mac_info)
1048{
1049 struct ieee80211_iface_combination *if_comb;
1050 size_t n_if_comb;
1051 u16 interface_modes = 0;
1052 size_t i, j;
1053
1054 if_comb = mac_info->if_comb;
1055 n_if_comb = mac_info->n_if_comb;
1056
1057 if (!if_comb || !n_if_comb)
1058 return -ENOENT;
1059
1060 for (i = 0; i < n_if_comb; i++) {
1061 if_comb[i].radar_detect_widths = mac_info->radar_detect_widths;
1062
1063 for (j = 0; j < if_comb[i].n_limits; j++)
1064 interface_modes |= if_comb[i].limits[j].types;
1065 }
1066
1067 wiphy->iface_combinations = if_comb;
1068 wiphy->n_iface_combinations = n_if_comb;
1069 wiphy->interface_modes = interface_modes;
1070
1071 return 0;
1072}
1073
1074int qtnf_wiphy_register(struct qtnf_hw_info *hw_info, struct qtnf_wmac *mac)
1075{
1076 struct wiphy *wiphy = priv_to_wiphy(mac);
1077 struct qtnf_mac_info *macinfo = &mac->macinfo;
1078 int ret;
1079
1080 if (!wiphy) {
1081 pr_err("invalid wiphy pointer\n");
1082 return -EFAULT;
1083 }
1084
1085 wiphy->frag_threshold = macinfo->frag_thr;
1086 wiphy->rts_threshold = macinfo->rts_thr;
1087 wiphy->retry_short = macinfo->sretry_limit;
1088 wiphy->retry_long = macinfo->lretry_limit;
1089 wiphy->coverage_class = macinfo->coverage_class;
1090
1091 wiphy->max_scan_ssids =
1092 (hw_info->max_scan_ssids) ? hw_info->max_scan_ssids : 1;
1093 wiphy->max_scan_ie_len = QTNF_MAX_VSIE_LEN;
1094 wiphy->mgmt_stypes = qtnf_mgmt_stypes;
1095 wiphy->max_remain_on_channel_duration = 5000;
1096 wiphy->max_acl_mac_addrs = macinfo->max_acl_mac_addrs;
1097 wiphy->max_num_csa_counters = 2;
1098
1099 ret = qtnf_wiphy_setup_if_comb(wiphy, macinfo);
1100 if (ret)
1101 goto out;
1102
1103
1104 wiphy->cipher_suites = qtnf_cipher_suites;
1105 wiphy->n_cipher_suites = ARRAY_SIZE(qtnf_cipher_suites);
1106 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
1107 wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
1108 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD |
1109 WIPHY_FLAG_AP_UAPSD |
1110 WIPHY_FLAG_HAS_CHANNEL_SWITCH;
1111 wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
1112
1113 if (hw_info->hw_capab & QLINK_HW_CAPAB_DFS_OFFLOAD)
1114 wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_DFS_OFFLOAD);
1115
1116 if (hw_info->hw_capab & QLINK_HW_CAPAB_SCAN_DWELL)
1117 wiphy_ext_feature_set(wiphy,
1118 NL80211_EXT_FEATURE_SET_SCAN_DWELL);
1119
1120 wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
1121 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2;
1122
1123 wiphy->available_antennas_tx = macinfo->num_tx_chain;
1124 wiphy->available_antennas_rx = macinfo->num_rx_chain;
1125
1126 wiphy->max_ap_assoc_sta = macinfo->max_ap_assoc_sta;
1127 wiphy->ht_capa_mod_mask = &macinfo->ht_cap_mod_mask;
1128 wiphy->vht_capa_mod_mask = &macinfo->vht_cap_mod_mask;
1129
1130 ether_addr_copy(wiphy->perm_addr, mac->macaddr);
1131
1132 if (hw_info->hw_capab & QLINK_HW_CAPAB_STA_INACT_TIMEOUT)
1133 wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER;
1134
1135 if (hw_info->hw_capab & QLINK_HW_CAPAB_SCAN_RANDOM_MAC_ADDR)
1136 wiphy->features |= NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
1137
1138 if (!(hw_info->hw_capab & QLINK_HW_CAPAB_OBSS_SCAN))
1139 wiphy->features |= NL80211_FEATURE_NEED_OBSS_SCAN;
1140
1141#ifdef CONFIG_PM
1142 if (macinfo->wowlan)
1143 wiphy->wowlan = macinfo->wowlan;
1144#endif
1145
1146 if (hw_info->hw_capab & QLINK_HW_CAPAB_REG_UPDATE) {
1147 wiphy->regulatory_flags |= REGULATORY_STRICT_REG |
1148 REGULATORY_CUSTOM_REG;
1149 wiphy->reg_notifier = qtnf_cfg80211_reg_notifier;
1150 wiphy_apply_custom_regulatory(wiphy, hw_info->rd);
1151 } else {
1152 wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED;
1153 }
1154
1155 if (mac->macinfo.extended_capabilities_len) {
1156 wiphy->extended_capabilities =
1157 mac->macinfo.extended_capabilities;
1158 wiphy->extended_capabilities_mask =
1159 mac->macinfo.extended_capabilities_mask;
1160 wiphy->extended_capabilities_len =
1161 mac->macinfo.extended_capabilities_len;
1162 }
1163
1164 strlcpy(wiphy->fw_version, hw_info->fw_version,
1165 sizeof(wiphy->fw_version));
1166 wiphy->hw_version = hw_info->hw_version;
1167
1168 ret = wiphy_register(wiphy);
1169 if (ret < 0)
1170 goto out;
1171
1172 if (wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED)
1173 ret = regulatory_set_wiphy_regd(wiphy, hw_info->rd);
1174 else if (isalpha(hw_info->rd->alpha2[0]) &&
1175 isalpha(hw_info->rd->alpha2[1]))
1176 ret = regulatory_hint(wiphy, hw_info->rd->alpha2);
1177
1178out:
1179 return ret;
1180}
1181
1182void qtnf_netdev_updown(struct net_device *ndev, bool up)
1183{
1184 struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev);
1185
1186 if (qtnf_cmd_send_updown_intf(vif, up))
1187 pr_err("failed to send %s command to VIF%u.%u\n",
1188 up ? "UP" : "DOWN", vif->mac->macid, vif->vifid);
1189}
1190
1191void qtnf_virtual_intf_cleanup(struct net_device *ndev)
1192{
1193 struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev);
1194 struct qtnf_wmac *mac = wiphy_priv(vif->wdev.wiphy);
1195
1196 if (vif->wdev.iftype == NL80211_IFTYPE_STATION)
1197 qtnf_disconnect(vif->wdev.wiphy, ndev,
1198 WLAN_REASON_DEAUTH_LEAVING);
1199
1200 qtnf_scan_done(mac, true);
1201}
1202
1203void qtnf_cfg80211_vif_reset(struct qtnf_vif *vif)
1204{
1205 if (vif->wdev.iftype == NL80211_IFTYPE_STATION)
1206 cfg80211_disconnected(vif->netdev, WLAN_REASON_DEAUTH_LEAVING,
1207 NULL, 0, 1, GFP_KERNEL);
1208
1209 cfg80211_shutdown_all_interfaces(vif->wdev.wiphy);
1210}
1211
1212void qtnf_band_init_rates(struct ieee80211_supported_band *band)
1213{
1214 switch (band->band) {
1215 case NL80211_BAND_2GHZ:
1216 band->bitrates = qtnf_rates_2g;
1217 band->n_bitrates = ARRAY_SIZE(qtnf_rates_2g);
1218 break;
1219 case NL80211_BAND_5GHZ:
1220 band->bitrates = qtnf_rates_5g;
1221 band->n_bitrates = ARRAY_SIZE(qtnf_rates_5g);
1222 break;
1223 default:
1224 band->bitrates = NULL;
1225 band->n_bitrates = 0;
1226 break;
1227 }
1228}
1229
