Lines Matching +full:hw +full:- +full:channels
1 // SPDX-License-Identifier: GPL-2.0-only
8 * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
10 * Copyright 2013-2015 Intel Mobile Communications GmbH
11 * Copyright 2016-2017 Intel Deutschland GmbH
12 * Copyright (C) 2018-2024 Intel Corporation
25 #include "driver-ops.h"
37 cfg80211_put_bss(local->hw.wiphy, in ieee80211_rx_bss_put()
45 if (elems->wmm_info && elems->wmm_info_len == 7 in is_uapsd_supported()
46 && elems->wmm_info[5] == 1) in is_uapsd_supported()
47 qos_info = elems->wmm_info[6]; in is_uapsd_supported()
48 else if (elems->wmm_param && elems->wmm_param_len == 24 in is_uapsd_supported()
49 && elems->wmm_param[5] == 1) in is_uapsd_supported()
50 qos_info = elems->wmm_param[6]; in is_uapsd_supported()
70 struct ieee80211_bss *bss = (void *)cbss->priv; in ieee80211_inform_bss()
79 elems = ieee802_11_parse_elems(ies->data, ies->len, false, NULL); in ieee80211_inform_bss()
83 rx_status = update_data->rx_status; in ieee80211_inform_bss()
85 if (update_data->beacon) in ieee80211_inform_bss()
86 bss->device_ts_beacon = rx_status->device_timestamp; in ieee80211_inform_bss()
88 bss->device_ts_presp = rx_status->device_timestamp; in ieee80211_inform_bss()
90 if (elems->parse_error) { in ieee80211_inform_bss()
91 if (update_data->beacon) in ieee80211_inform_bss()
92 bss->corrupt_data |= IEEE80211_BSS_CORRUPT_BEACON; in ieee80211_inform_bss()
94 bss->corrupt_data |= IEEE80211_BSS_CORRUPT_PROBE_RESP; in ieee80211_inform_bss()
96 if (update_data->beacon) in ieee80211_inform_bss()
97 bss->corrupt_data &= ~IEEE80211_BSS_CORRUPT_BEACON; in ieee80211_inform_bss()
99 bss->corrupt_data &= ~IEEE80211_BSS_CORRUPT_PROBE_RESP; in ieee80211_inform_bss()
103 if (elems->erp_info && (!elems->parse_error || in ieee80211_inform_bss()
104 !(bss->valid_data & IEEE80211_BSS_VALID_ERP))) { in ieee80211_inform_bss()
105 bss->erp_value = elems->erp_info[0]; in ieee80211_inform_bss()
106 bss->has_erp_value = true; in ieee80211_inform_bss()
107 if (!elems->parse_error) in ieee80211_inform_bss()
108 bss->valid_data |= IEEE80211_BSS_VALID_ERP; in ieee80211_inform_bss()
112 if (!elems->parse_error || in ieee80211_inform_bss()
113 !(bss->valid_data & IEEE80211_BSS_VALID_RATES)) { in ieee80211_inform_bss()
115 if (elems->supp_rates) { in ieee80211_inform_bss()
117 if (clen > elems->supp_rates_len) in ieee80211_inform_bss()
118 clen = elems->supp_rates_len; in ieee80211_inform_bss()
119 memcpy(bss->supp_rates, elems->supp_rates, clen); in ieee80211_inform_bss()
122 if (elems->ext_supp_rates) { in ieee80211_inform_bss()
123 clen = IEEE80211_MAX_SUPP_RATES - srlen; in ieee80211_inform_bss()
124 if (clen > elems->ext_supp_rates_len) in ieee80211_inform_bss()
125 clen = elems->ext_supp_rates_len; in ieee80211_inform_bss()
126 memcpy(bss->supp_rates + srlen, elems->ext_supp_rates, in ieee80211_inform_bss()
131 bss->supp_rates_len = srlen; in ieee80211_inform_bss()
132 if (!elems->parse_error) in ieee80211_inform_bss()
133 bss->valid_data |= IEEE80211_BSS_VALID_RATES; in ieee80211_inform_bss()
137 if (!elems->parse_error || in ieee80211_inform_bss()
138 !(bss->valid_data & IEEE80211_BSS_VALID_WMM)) { in ieee80211_inform_bss()
139 bss->wmm_used = elems->wmm_param || elems->wmm_info; in ieee80211_inform_bss()
140 bss->uapsd_supported = is_uapsd_supported(elems); in ieee80211_inform_bss()
141 if (!elems->parse_error) in ieee80211_inform_bss()
142 bss->valid_data |= IEEE80211_BSS_VALID_WMM; in ieee80211_inform_bss()
145 if (update_data->beacon) { in ieee80211_inform_bss()
147 local->hw.wiphy->bands[rx_status->band]; in ieee80211_inform_bss()
148 if (!(rx_status->encoding == RX_ENC_HT) && in ieee80211_inform_bss()
149 !(rx_status->encoding == RX_ENC_VHT)) in ieee80211_inform_bss()
150 bss->beacon_rate = in ieee80211_inform_bss()
151 &sband->bitrates[rx_status->rate_idx]; in ieee80211_inform_bss()
154 if (elems->vht_cap_elem) in ieee80211_inform_bss()
155 bss->vht_cap_info = in ieee80211_inform_bss()
156 le32_to_cpu(elems->vht_cap_elem->vht_cap_info); in ieee80211_inform_bss()
158 bss->vht_cap_info = 0; in ieee80211_inform_bss()
169 bool beacon = ieee80211_is_beacon(mgmt->frame_control) || in ieee80211_bss_info_update()
170 ieee80211_is_s1g_beacon(mgmt->frame_control); in ieee80211_bss_info_update()
177 .boottime_ns = rx_status->boottime_ns, in ieee80211_bss_info_update()
183 if (rx_status->flag & RX_FLAG_NO_SIGNAL_VAL) in ieee80211_bss_info_update()
185 else if (ieee80211_hw_check(&local->hw, SIGNAL_DBM)) in ieee80211_bss_info_update()
186 bss_meta.signal = rx_status->signal * 100; in ieee80211_bss_info_update()
187 else if (ieee80211_hw_check(&local->hw, SIGNAL_UNSPEC)) in ieee80211_bss_info_update()
188 bss_meta.signal = (rx_status->signal * 100) / local->hw.max_signal; in ieee80211_bss_info_update()
191 if (rx_status->bw == RATE_INFO_BW_5) in ieee80211_bss_info_update()
193 else if (rx_status->bw == RATE_INFO_BW_10) in ieee80211_bss_info_update()
199 scan_sdata = rcu_dereference(local->scan_sdata); in ieee80211_bss_info_update()
200 if (scan_sdata && scan_sdata->vif.type == NL80211_IFTYPE_STATION && in ieee80211_bss_info_update()
201 scan_sdata->vif.cfg.assoc && in ieee80211_bss_info_update()
207 scan_sdata->vif.bss_conf.bssid); in ieee80211_bss_info_update()
211 cbss = cfg80211_inform_bss_frame_data(local->hw.wiphy, &bss_meta, in ieee80211_bss_info_update()
217 signal_valid = channel == cbss->channel; in ieee80211_bss_info_update()
219 rx_status->flag |= RX_FLAG_NO_SIGNAL_VAL; in ieee80211_bss_info_update()
221 return (void *)cbss->priv; in ieee80211_bss_info_update()
233 (channel->band == NL80211_BAND_6GHZ || in ieee80211_scan_accept_presp()
239 return ether_addr_equal(da, sdata->vif.addr); in ieee80211_scan_accept_presp()
246 struct ieee80211_mgmt *mgmt = (void *)skb->data; in ieee80211_scan_rx()
252 if (!ieee80211_is_probe_resp(mgmt->frame_control) && in ieee80211_scan_rx()
253 !ieee80211_is_beacon(mgmt->frame_control) && in ieee80211_scan_rx()
254 !ieee80211_is_s1g_beacon(mgmt->frame_control)) in ieee80211_scan_rx()
257 if (ieee80211_is_s1g_beacon(mgmt->frame_control)) { in ieee80211_scan_rx()
258 if (ieee80211_is_s1g_short_beacon(mgmt->frame_control)) in ieee80211_scan_rx()
266 if (skb->len < min_hdr_len) in ieee80211_scan_rx()
269 sdata1 = rcu_dereference(local->scan_sdata); in ieee80211_scan_rx()
270 sdata2 = rcu_dereference(local->sched_scan_sdata); in ieee80211_scan_rx()
275 if (test_and_clear_bit(SCAN_BEACON_WAIT, &local->scanning)) { in ieee80211_scan_rx()
277 * we were passive scanning because of radar/no-IR, but in ieee80211_scan_rx()
281 set_bit(SCAN_BEACON_DONE, &local->scanning); in ieee80211_scan_rx()
282 wiphy_delayed_work_queue(local->hw.wiphy, &local->scan_work, 0); in ieee80211_scan_rx()
285 channel = ieee80211_get_channel_khz(local->hw.wiphy, in ieee80211_scan_rx()
288 if (!channel || channel->flags & IEEE80211_CHAN_DISABLED) in ieee80211_scan_rx()
291 if (ieee80211_is_probe_resp(mgmt->frame_control)) { in ieee80211_scan_rx()
296 scan_req = rcu_dereference(local->scan_req); in ieee80211_scan_rx()
297 sched_scan_req = rcu_dereference(local->sched_scan_req); in ieee80211_scan_rx()
300 scan_req_flags = scan_req->flags; in ieee80211_scan_rx()
303 sched_scan_req_flags = sched_scan_req->flags; in ieee80211_scan_rx()
305 /* ignore ProbeResp to foreign address or non-bcast (OCE) in ieee80211_scan_rx()
310 mgmt->da) && in ieee80211_scan_rx()
313 mgmt->da)) in ieee80211_scan_rx()
318 mgmt, skb->len, in ieee80211_scan_rx()
331 chandef->width = NL80211_CHAN_WIDTH_5; in ieee80211_prepare_scan_chandef()
334 chandef->width = NL80211_CHAN_WIDTH_10; in ieee80211_prepare_scan_chandef()
337 chandef->width = NL80211_CHAN_WIDTH_20_NOHT; in ieee80211_prepare_scan_chandef()
345 struct ieee80211_local *local = sdata->local; in ieee80211_prep_hw_scan()
352 req = rcu_dereference_protected(local->scan_req, in ieee80211_prep_hw_scan()
353 lockdep_is_held(&local->mtx)); in ieee80211_prep_hw_scan()
355 if (test_bit(SCAN_HW_CANCELLED, &local->scanning)) in ieee80211_prep_hw_scan()
358 if (ieee80211_hw_check(&local->hw, SINGLE_SCAN_ON_ALL_BANDS)) { in ieee80211_prep_hw_scan()
359 for (i = 0; i < req->n_channels; i++) { in ieee80211_prep_hw_scan()
360 local->hw_scan_req->req.channels[i] = req->channels[i]; in ieee80211_prep_hw_scan()
361 bands_used |= BIT(req->channels[i]->band); in ieee80211_prep_hw_scan()
364 n_chans = req->n_channels; in ieee80211_prep_hw_scan()
367 if (local->hw_scan_band == NUM_NL80211_BANDS) in ieee80211_prep_hw_scan()
372 for (i = 0; i < req->n_channels; i++) { in ieee80211_prep_hw_scan()
373 if (req->channels[i]->band != in ieee80211_prep_hw_scan()
374 local->hw_scan_band) in ieee80211_prep_hw_scan()
376 local->hw_scan_req->req.channels[n_chans] = in ieee80211_prep_hw_scan()
377 req->channels[i]; in ieee80211_prep_hw_scan()
379 bands_used |= BIT(req->channels[i]->band); in ieee80211_prep_hw_scan()
382 local->hw_scan_band++; in ieee80211_prep_hw_scan()
386 local->hw_scan_req->req.n_channels = n_chans; in ieee80211_prep_hw_scan()
387 ieee80211_prepare_scan_chandef(&chandef, req->scan_width); in ieee80211_prep_hw_scan()
389 if (req->flags & NL80211_SCAN_FLAG_MIN_PREQ_CONTENT) in ieee80211_prep_hw_scan()
393 (u8 *)local->hw_scan_req->req.ie, in ieee80211_prep_hw_scan()
394 local->hw_scan_ies_bufsize, in ieee80211_prep_hw_scan()
395 &local->hw_scan_req->ies, in ieee80211_prep_hw_scan()
396 req->ie, req->ie_len, in ieee80211_prep_hw_scan()
397 bands_used, req->rates, &chandef, in ieee80211_prep_hw_scan()
399 local->hw_scan_req->req.ie_len = ielen; in ieee80211_prep_hw_scan()
400 local->hw_scan_req->req.no_cck = req->no_cck; in ieee80211_prep_hw_scan()
401 ether_addr_copy(local->hw_scan_req->req.mac_addr, req->mac_addr); in ieee80211_prep_hw_scan()
402 ether_addr_copy(local->hw_scan_req->req.mac_addr_mask, in ieee80211_prep_hw_scan()
403 req->mac_addr_mask); in ieee80211_prep_hw_scan()
404 ether_addr_copy(local->hw_scan_req->req.bssid, req->bssid); in ieee80211_prep_hw_scan()
409 static void __ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted) in __ieee80211_scan_completed() argument
411 struct ieee80211_local *local = hw_to_local(hw); in __ieee80211_scan_completed()
412 bool hw_scan = test_bit(SCAN_HW_SCANNING, &local->scanning); in __ieee80211_scan_completed()
413 bool was_scanning = local->scanning; in __ieee80211_scan_completed()
418 lockdep_assert_held(&local->mtx); in __ieee80211_scan_completed()
421 * It's ok to abort a not-yet-running scan (that in __ieee80211_scan_completed()
423 * local->scan_req next), but not to complete it in __ieee80211_scan_completed()
426 if (WARN_ON(!local->scanning && !aborted)) in __ieee80211_scan_completed()
429 if (WARN_ON(!local->scan_req)) in __ieee80211_scan_completed()
432 scan_sdata = rcu_dereference_protected(local->scan_sdata, in __ieee80211_scan_completed()
433 lockdep_is_held(&local->mtx)); in __ieee80211_scan_completed()
436 !ieee80211_hw_check(&local->hw, SINGLE_SCAN_ON_ALL_BANDS) && in __ieee80211_scan_completed()
441 rcu_dereference_protected(local->scan_sdata, in __ieee80211_scan_completed()
442 lockdep_is_held(&local->mtx)), in __ieee80211_scan_completed()
443 local->hw_scan_req); in __ieee80211_scan_completed()
448 /* HW scan failed and is going to be reported as aborted, in __ieee80211_scan_completed()
451 memset(&local->scan_info, 0, sizeof(local->scan_info)); in __ieee80211_scan_completed()
455 kfree(local->hw_scan_req); in __ieee80211_scan_completed()
456 local->hw_scan_req = NULL; in __ieee80211_scan_completed()
458 scan_req = rcu_dereference_protected(local->scan_req, in __ieee80211_scan_completed()
459 lockdep_is_held(&local->mtx)); in __ieee80211_scan_completed()
461 RCU_INIT_POINTER(local->scan_req, NULL); in __ieee80211_scan_completed()
462 RCU_INIT_POINTER(local->scan_sdata, NULL); in __ieee80211_scan_completed()
464 local->scanning = 0; in __ieee80211_scan_completed()
465 local->scan_chandef.chan = NULL; in __ieee80211_scan_completed()
469 if (scan_req != local->int_scan_req) { in __ieee80211_scan_completed()
470 local->scan_info.aborted = aborted; in __ieee80211_scan_completed()
471 cfg80211_scan_done(scan_req, &local->scan_info); in __ieee80211_scan_completed()
490 * just be a no-op for the particular interface. in __ieee80211_scan_completed()
492 list_for_each_entry_rcu(sdata, &local->interfaces, list) { in __ieee80211_scan_completed()
494 wiphy_work_queue(sdata->local->hw.wiphy, &sdata->work); in __ieee80211_scan_completed()
501 void ieee80211_scan_completed(struct ieee80211_hw *hw, in ieee80211_scan_completed() argument
504 struct ieee80211_local *local = hw_to_local(hw); in ieee80211_scan_completed()
506 trace_api_scan_completed(local, info->aborted); in ieee80211_scan_completed()
508 set_bit(SCAN_COMPLETED, &local->scanning); in ieee80211_scan_completed()
509 if (info->aborted) in ieee80211_scan_completed()
510 set_bit(SCAN_ABORTED, &local->scanning); in ieee80211_scan_completed()
512 memcpy(&local->scan_info, info, sizeof(*info)); in ieee80211_scan_completed()
514 wiphy_delayed_work_queue(local->hw.wiphy, &local->scan_work, 0); in ieee80211_scan_completed()
521 /* Software scan is not supported in multi-channel cases */ in ieee80211_start_sw_scan()
522 if (local->use_chanctx) in ieee80211_start_sw_scan()
523 return -EOPNOTSUPP; in ieee80211_start_sw_scan()
530 * the responses. After all channels are scanned, tune back to the in ieee80211_start_sw_scan()
534 * Note that while local->sw_scanning is true everything else but in ieee80211_start_sw_scan()
538 drv_sw_scan_start(local, sdata, local->scan_addr); in ieee80211_start_sw_scan()
540 local->leave_oper_channel_time = jiffies; in ieee80211_start_sw_scan()
541 local->next_scan_state = SCAN_DECISION; in ieee80211_start_sw_scan()
542 local->scan_channel_idx = 0; in ieee80211_start_sw_scan()
554 wiphy_delayed_work_queue(local->hw.wiphy, &local->scan_work, 0); in ieee80211_start_sw_scan()
561 struct ieee80211_local *local = sdata->local; in __ieee80211_can_leave_ch()
567 if (!regulatory_pre_cac_allowed(local->hw.wiphy)) in __ieee80211_can_leave_ch()
570 mutex_lock(&local->iflist_mtx); in __ieee80211_can_leave_ch()
571 list_for_each_entry(sdata_iter, &local->interfaces, list) { in __ieee80211_can_leave_ch()
572 if (sdata_iter->wdev.cac_started) { in __ieee80211_can_leave_ch()
573 mutex_unlock(&local->iflist_mtx); in __ieee80211_can_leave_ch()
577 mutex_unlock(&local->iflist_mtx); in __ieee80211_can_leave_ch()
588 if (!list_empty(&local->roc_list)) in ieee80211_can_scan()
591 if (sdata->vif.type == NL80211_IFTYPE_STATION && in ieee80211_can_scan()
592 sdata->u.mgd.flags & IEEE80211_STA_CONNECTION_POLL) in ieee80211_can_scan()
600 lockdep_assert_held(&local->mtx); in ieee80211_run_deferred_scan()
602 if (!local->scan_req || local->scanning) in ieee80211_run_deferred_scan()
607 local->scan_sdata, in ieee80211_run_deferred_scan()
608 lockdep_is_held(&local->mtx)))) in ieee80211_run_deferred_scan()
611 wiphy_delayed_work_queue(local->hw.wiphy, &local->scan_work, in ieee80211_run_deferred_scan()
630 struct ieee80211_hdr *hdr = (void *)skb->data; in ieee80211_send_scan_probe_req()
634 info->control.flags |= IEEE80211_TX_CTRL_NO_SEQNO; in ieee80211_send_scan_probe_req()
635 hdr->seq_ctrl = in ieee80211_send_scan_probe_req()
638 IEEE80211_SKB_CB(skb)->flags |= tx_flags; in ieee80211_send_scan_probe_req()
639 ieee80211_tx_skb_tid_band(sdata, skb, 7, channel->band); in ieee80211_send_scan_probe_req()
649 enum nl80211_band band = local->hw.conf.chandef.chan->band; in ieee80211_scan_state_send_probe()
652 scan_req = rcu_dereference_protected(local->scan_req, in ieee80211_scan_state_send_probe()
653 lockdep_is_held(&local->mtx)); in ieee80211_scan_state_send_probe()
656 if (scan_req->no_cck) in ieee80211_scan_state_send_probe()
658 if (scan_req->flags & NL80211_SCAN_FLAG_MIN_PREQ_CONTENT) in ieee80211_scan_state_send_probe()
660 if (scan_req->flags & NL80211_SCAN_FLAG_RANDOM_SN) in ieee80211_scan_state_send_probe()
663 sdata = rcu_dereference_protected(local->scan_sdata, in ieee80211_scan_state_send_probe()
664 lockdep_is_held(&local->mtx)); in ieee80211_scan_state_send_probe()
666 for (i = 0; i < scan_req->n_ssids; i++) in ieee80211_scan_state_send_probe()
668 sdata, local->scan_addr, scan_req->bssid, in ieee80211_scan_state_send_probe()
669 scan_req->ssids[i].ssid, scan_req->ssids[i].ssid_len, in ieee80211_scan_state_send_probe()
670 scan_req->ie, scan_req->ie_len, in ieee80211_scan_state_send_probe()
671 scan_req->rates[band], flags, in ieee80211_scan_state_send_probe()
672 tx_flags, local->hw.conf.chandef.chan); in ieee80211_scan_state_send_probe()
679 local->next_scan_state = SCAN_DECISION; in ieee80211_scan_state_send_probe()
685 struct ieee80211_local *local = sdata->local; in __ieee80211_start_scan()
686 bool hw_scan = local->ops->hw_scan; in __ieee80211_start_scan()
689 lockdep_assert_held(&local->mtx); in __ieee80211_start_scan()
691 if (local->scan_req) in __ieee80211_start_scan()
692 return -EBUSY; in __ieee80211_start_scan()
695 return -EBUSY; in __ieee80211_start_scan()
699 rcu_assign_pointer(local->scan_req, req); in __ieee80211_start_scan()
700 rcu_assign_pointer(local->scan_sdata, sdata); in __ieee80211_start_scan()
708 local->hw_scan_ies_bufsize = local->scan_ies_len + req->ie_len; in __ieee80211_start_scan()
710 if (ieee80211_hw_check(&local->hw, SINGLE_SCAN_ON_ALL_BANDS)) { in __ieee80211_start_scan()
714 for (i = 0; i < req->n_channels; i++) { in __ieee80211_start_scan()
715 if (bands_counted & BIT(req->channels[i]->band)) in __ieee80211_start_scan()
717 bands_counted |= BIT(req->channels[i]->band); in __ieee80211_start_scan()
721 local->hw_scan_ies_bufsize *= n_bands; in __ieee80211_start_scan()
724 local->hw_scan_req = kmalloc( in __ieee80211_start_scan()
725 sizeof(*local->hw_scan_req) + in __ieee80211_start_scan()
726 req->n_channels * sizeof(req->channels[0]) + in __ieee80211_start_scan()
727 local->hw_scan_ies_bufsize, GFP_KERNEL); in __ieee80211_start_scan()
728 if (!local->hw_scan_req) in __ieee80211_start_scan()
729 return -ENOMEM; in __ieee80211_start_scan()
731 local->hw_scan_req->req.ssids = req->ssids; in __ieee80211_start_scan()
732 local->hw_scan_req->req.n_ssids = req->n_ssids; in __ieee80211_start_scan()
733 ies = (u8 *)local->hw_scan_req + in __ieee80211_start_scan()
734 sizeof(*local->hw_scan_req) + in __ieee80211_start_scan()
735 req->n_channels * sizeof(req->channels[0]); in __ieee80211_start_scan()
736 local->hw_scan_req->req.ie = ies; in __ieee80211_start_scan()
737 local->hw_scan_req->req.flags = req->flags; in __ieee80211_start_scan()
738 eth_broadcast_addr(local->hw_scan_req->req.bssid); in __ieee80211_start_scan()
739 local->hw_scan_req->req.duration = req->duration; in __ieee80211_start_scan()
740 local->hw_scan_req->req.duration_mandatory = in __ieee80211_start_scan()
741 req->duration_mandatory; in __ieee80211_start_scan()
743 local->hw_scan_band = 0; in __ieee80211_start_scan()
744 local->hw_scan_req->req.n_6ghz_params = req->n_6ghz_params; in __ieee80211_start_scan()
745 local->hw_scan_req->req.scan_6ghz_params = in __ieee80211_start_scan()
746 req->scan_6ghz_params; in __ieee80211_start_scan()
747 local->hw_scan_req->req.scan_6ghz = req->scan_6ghz; in __ieee80211_start_scan()
750 * After allocating local->hw_scan_req, we must in __ieee80211_start_scan()
758 rcu_assign_pointer(local->scan_req, req); in __ieee80211_start_scan()
759 rcu_assign_pointer(local->scan_sdata, sdata); in __ieee80211_start_scan()
761 if (req->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) in __ieee80211_start_scan()
762 get_random_mask_addr(local->scan_addr, in __ieee80211_start_scan()
763 req->mac_addr, in __ieee80211_start_scan()
764 req->mac_addr_mask); in __ieee80211_start_scan()
766 memcpy(local->scan_addr, sdata->vif.addr, ETH_ALEN); in __ieee80211_start_scan()
769 __set_bit(SCAN_HW_SCANNING, &local->scanning); in __ieee80211_start_scan()
770 } else if ((req->n_channels == 1) && in __ieee80211_start_scan()
771 (req->channels[0] == local->_oper_chandef.chan)) { in __ieee80211_start_scan()
778 __set_bit(SCAN_ONCHANNEL_SCANNING, &local->scanning); in __ieee80211_start_scan()
784 drv_sw_scan_start(local, sdata, local->scan_addr); in __ieee80211_start_scan()
786 ieee80211_configure_filter(local); /* accept probe-responses */ in __ieee80211_start_scan()
791 if ((req->channels[0]->flags & (IEEE80211_CHAN_NO_IR | in __ieee80211_start_scan()
793 !req->n_ssids) { in __ieee80211_start_scan()
795 if (req->n_ssids) in __ieee80211_start_scan()
796 set_bit(SCAN_BEACON_WAIT, &local->scanning); in __ieee80211_start_scan()
803 wiphy_delayed_work_queue(local->hw.wiphy, &local->scan_work, in __ieee80211_start_scan()
808 __set_bit(SCAN_SW_SCANNING, &local->scanning); in __ieee80211_start_scan()
815 rc = drv_hw_scan(local, sdata, local->hw_scan_req); in __ieee80211_start_scan()
821 kfree(local->hw_scan_req); in __ieee80211_start_scan()
822 local->hw_scan_req = NULL; in __ieee80211_start_scan()
823 local->scanning = 0; in __ieee80211_start_scan()
827 local->scan_req = NULL; in __ieee80211_start_scan()
828 RCU_INIT_POINTER(local->scan_sdata, NULL); in __ieee80211_start_scan()
833 * we can't fall back to software for P2P-GO in __ieee80211_start_scan()
836 if (ieee80211_vif_type_p2p(&sdata->vif) == in __ieee80211_start_scan()
838 return -EOPNOTSUPP; in __ieee80211_start_scan()
853 if (chan->flags & (IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_RADAR)) in ieee80211_scan_get_channel_time()
874 mutex_lock(&local->iflist_mtx); in ieee80211_scan_state_decision()
875 list_for_each_entry(sdata, &local->interfaces, list) { in ieee80211_scan_state_decision()
879 if (sdata->vif.type == NL80211_IFTYPE_STATION) { in ieee80211_scan_state_decision()
880 if (sdata->u.mgd.associated) { in ieee80211_scan_state_decision()
883 if (!qdisc_all_tx_empty(sdata->dev)) { in ieee80211_scan_state_decision()
890 mutex_unlock(&local->iflist_mtx); in ieee80211_scan_state_decision()
892 scan_req = rcu_dereference_protected(local->scan_req, in ieee80211_scan_state_decision()
893 lockdep_is_held(&local->mtx)); in ieee80211_scan_state_decision()
895 next_chan = scan_req->channels[local->scan_channel_idx]; in ieee80211_scan_state_decision()
902 * Keep good latency, do not stay off-channel more than 125 ms. in ieee80211_scan_state_decision()
907 local->leave_oper_channel_time + HZ / 8); in ieee80211_scan_state_decision()
910 if (scan_req->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) in ieee80211_scan_state_decision()
920 local->next_scan_state = next_scan_state; in ieee80211_scan_state_decision()
933 scan_req = rcu_dereference_protected(local->scan_req, in ieee80211_scan_state_set_channel()
934 lockdep_is_held(&local->mtx)); in ieee80211_scan_state_set_channel()
937 chan = scan_req->channels[local->scan_channel_idx]; in ieee80211_scan_state_set_channel()
939 local->scan_chandef.chan = chan; in ieee80211_scan_state_set_channel()
940 local->scan_chandef.center_freq1 = chan->center_freq; in ieee80211_scan_state_set_channel()
941 local->scan_chandef.freq1_offset = chan->freq_offset; in ieee80211_scan_state_set_channel()
942 local->scan_chandef.center_freq2 = 0; in ieee80211_scan_state_set_channel()
945 * across all channels) for now since channel width is specific to each in ieee80211_scan_state_set_channel()
949 if (chan->band == NL80211_BAND_S1GHZ) { in ieee80211_scan_state_set_channel()
950 local->scan_chandef.width = ieee80211_s1g_channel_width(chan); in ieee80211_scan_state_set_channel()
954 switch (scan_req->scan_width) { in ieee80211_scan_state_set_channel()
956 local->scan_chandef.width = NL80211_CHAN_WIDTH_5; in ieee80211_scan_state_set_channel()
959 local->scan_chandef.width = NL80211_CHAN_WIDTH_10; in ieee80211_scan_state_set_channel()
963 /* If scanning on oper channel, use whatever channel-type in ieee80211_scan_state_set_channel()
967 &local->_oper_chandef); in ieee80211_scan_state_set_channel()
968 if (chan == local->_oper_chandef.chan && in ieee80211_scan_state_set_channel()
969 oper_scan_width == scan_req->scan_width) in ieee80211_scan_state_set_channel()
970 local->scan_chandef = local->_oper_chandef; in ieee80211_scan_state_set_channel()
972 local->scan_chandef.width = NL80211_CHAN_WIDTH_20_NOHT; in ieee80211_scan_state_set_channel()
986 local->scan_channel_idx++; in ieee80211_scan_state_set_channel()
990 local->next_scan_state = SCAN_DECISION; in ieee80211_scan_state_set_channel()
998 * received - and the received frame would update the NAV). in ieee80211_scan_state_set_channel()
1004 if ((chan->flags & (IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_RADAR)) || in ieee80211_scan_state_set_channel()
1005 !scan_req->n_ssids) { in ieee80211_scan_state_set_channel()
1007 local->next_scan_state = SCAN_DECISION; in ieee80211_scan_state_set_channel()
1008 if (scan_req->n_ssids) in ieee80211_scan_state_set_channel()
1009 set_bit(SCAN_BEACON_WAIT, &local->scanning); in ieee80211_scan_state_set_channel()
1015 local->next_scan_state = SCAN_SEND_PROBE; in ieee80211_scan_state_set_channel()
1022 local->scan_chandef.chan = NULL; in ieee80211_scan_state_suspend()
1030 local->next_scan_state = SCAN_RESUME; in ieee80211_scan_state_suspend()
1038 if (local->ops->flush) { in ieee80211_scan_state_resume()
1045 local->leave_oper_channel_time = jiffies; in ieee80211_scan_state_resume()
1048 local->next_scan_state = SCAN_SET_CHANNEL; in ieee80211_scan_state_resume()
1060 mutex_lock(&local->mtx); in ieee80211_scan_work()
1067 sdata = rcu_dereference_protected(local->scan_sdata, in ieee80211_scan_work()
1068 lockdep_is_held(&local->mtx)); in ieee80211_scan_work()
1069 scan_req = rcu_dereference_protected(local->scan_req, in ieee80211_scan_work()
1070 lockdep_is_held(&local->mtx)); in ieee80211_scan_work()
1072 /* When scanning on-channel, the first-callback means completed. */ in ieee80211_scan_work()
1073 if (test_bit(SCAN_ONCHANNEL_SCANNING, &local->scanning)) { in ieee80211_scan_work()
1074 aborted = test_and_clear_bit(SCAN_ABORTED, &local->scanning); in ieee80211_scan_work()
1078 if (test_and_clear_bit(SCAN_COMPLETED, &local->scanning)) { in ieee80211_scan_work()
1079 aborted = test_and_clear_bit(SCAN_ABORTED, &local->scanning); in ieee80211_scan_work()
1086 if (!local->scanning) { in ieee80211_scan_work()
1089 RCU_INIT_POINTER(local->scan_req, NULL); in ieee80211_scan_work()
1090 RCU_INIT_POINTER(local->scan_sdata, NULL); in ieee80211_scan_work()
1095 rcu_assign_pointer(local->scan_req, scan_req); in ieee80211_scan_work()
1102 clear_bit(SCAN_BEACON_WAIT, &local->scanning); in ieee80211_scan_work()
1114 if (test_and_clear_bit(SCAN_BEACON_DONE, &local->scanning) && in ieee80211_scan_work()
1115 local->next_scan_state == SCAN_DECISION) in ieee80211_scan_work()
1116 local->next_scan_state = SCAN_SEND_PROBE; in ieee80211_scan_work()
1118 switch (local->next_scan_state) { in ieee80211_scan_work()
1120 /* if no more bands/channels left, complete scan */ in ieee80211_scan_work()
1121 if (local->scan_channel_idx >= scan_req->n_channels) { in ieee80211_scan_work()
1145 wiphy_delayed_work_queue(local->hw.wiphy, &local->scan_work, in ieee80211_scan_work()
1150 __ieee80211_scan_completed(&local->hw, aborted); in ieee80211_scan_work()
1152 mutex_unlock(&local->mtx); in ieee80211_scan_work()
1160 mutex_lock(&sdata->local->mtx); in ieee80211_request_scan()
1162 mutex_unlock(&sdata->local->mtx); in ieee80211_request_scan()
1169 struct ieee80211_channel **channels, in ieee80211_request_ibss_scan() argument
1173 struct ieee80211_local *local = sdata->local; in ieee80211_request_ibss_scan()
1174 int ret = -EBUSY, i, n_ch = 0; in ieee80211_request_ibss_scan()
1177 mutex_lock(&local->mtx); in ieee80211_request_ibss_scan()
1180 if (local->scan_req) in ieee80211_request_ibss_scan()
1184 if (!channels) { in ieee80211_request_ibss_scan()
1188 if (!local->hw.wiphy->bands[band] || in ieee80211_request_ibss_scan()
1192 max_n = local->hw.wiphy->bands[band]->n_channels; in ieee80211_request_ibss_scan()
1195 &local->hw.wiphy->bands[band]->channels[i]; in ieee80211_request_ibss_scan()
1197 if (tmp_ch->flags & (IEEE80211_CHAN_NO_IR | in ieee80211_request_ibss_scan()
1201 local->int_scan_req->channels[n_ch] = tmp_ch; in ieee80211_request_ibss_scan()
1209 local->int_scan_req->n_channels = n_ch; in ieee80211_request_ibss_scan()
1212 if (channels[i]->flags & (IEEE80211_CHAN_NO_IR | in ieee80211_request_ibss_scan()
1216 local->int_scan_req->channels[n_ch] = channels[i]; in ieee80211_request_ibss_scan()
1223 local->int_scan_req->n_channels = n_ch; in ieee80211_request_ibss_scan()
1226 local->int_scan_req->ssids = &local->scan_ssid; in ieee80211_request_ibss_scan()
1227 local->int_scan_req->n_ssids = 1; in ieee80211_request_ibss_scan()
1228 local->int_scan_req->scan_width = scan_width; in ieee80211_request_ibss_scan()
1229 memcpy(local->int_scan_req->ssids[0].ssid, ssid, IEEE80211_MAX_SSID_LEN); in ieee80211_request_ibss_scan()
1230 local->int_scan_req->ssids[0].ssid_len = ssid_len; in ieee80211_request_ibss_scan()
1232 ret = __ieee80211_start_scan(sdata, sdata->local->int_scan_req); in ieee80211_request_ibss_scan()
1234 mutex_unlock(&local->mtx); in ieee80211_request_ibss_scan()
1241 lockdep_assert_wiphy(local->hw.wiphy); in ieee80211_scan_cancel()
1248 * - we can not call __ieee80211_scan_completed() as when in ieee80211_scan_cancel()
1250 * local->hw_scan_req to operate on 5G band, what race with in ieee80211_scan_cancel()
1251 * driver which can use local->hw_scan_req in ieee80211_scan_cancel()
1253 * - we can not cancel scan_work since driver can schedule it in ieee80211_scan_cancel()
1256 * Hence we only call the cancel_hw_scan() callback, but the low-level in ieee80211_scan_cancel()
1261 mutex_lock(&local->mtx); in ieee80211_scan_cancel()
1262 if (!local->scan_req) in ieee80211_scan_cancel()
1267 * but the worker hasn't run yet or is stuck on the mutex - mark it as in ieee80211_scan_cancel()
1270 if (test_bit(SCAN_HW_SCANNING, &local->scanning) && in ieee80211_scan_cancel()
1271 test_bit(SCAN_COMPLETED, &local->scanning)) { in ieee80211_scan_cancel()
1272 set_bit(SCAN_HW_CANCELLED, &local->scanning); in ieee80211_scan_cancel()
1276 if (test_bit(SCAN_HW_SCANNING, &local->scanning)) { in ieee80211_scan_cancel()
1281 set_bit(SCAN_HW_CANCELLED, &local->scanning); in ieee80211_scan_cancel()
1282 if (local->ops->cancel_hw_scan) in ieee80211_scan_cancel()
1284 rcu_dereference_protected(local->scan_sdata, in ieee80211_scan_cancel()
1285 lockdep_is_held(&local->mtx))); in ieee80211_scan_cancel()
1289 wiphy_delayed_work_cancel(local->hw.wiphy, &local->scan_work); in ieee80211_scan_cancel()
1291 memset(&local->scan_info, 0, sizeof(local->scan_info)); in ieee80211_scan_cancel()
1292 __ieee80211_scan_completed(&local->hw, true); in ieee80211_scan_cancel()
1294 mutex_unlock(&local->mtx); in ieee80211_scan_cancel()
1300 struct ieee80211_local *local = sdata->local; in __ieee80211_request_sched_scan_start()
1309 iebufsz = local->scan_ies_len + req->ie_len; in __ieee80211_request_sched_scan_start()
1311 lockdep_assert_held(&local->mtx); in __ieee80211_request_sched_scan_start()
1313 if (!local->ops->sched_scan_start) in __ieee80211_request_sched_scan_start()
1314 return -ENOTSUPP; in __ieee80211_request_sched_scan_start()
1317 if (local->hw.wiphy->bands[i]) { in __ieee80211_request_sched_scan_start()
1319 rate_masks[i] = (u32) -1; in __ieee80211_request_sched_scan_start()
1324 if (req->flags & NL80211_SCAN_FLAG_MIN_PREQ_CONTENT) in __ieee80211_request_sched_scan_start()
1329 ret = -ENOMEM; in __ieee80211_request_sched_scan_start()
1333 ieee80211_prepare_scan_chandef(&chandef, req->scan_width); in __ieee80211_request_sched_scan_start()
1336 &sched_scan_ies, req->ie, in __ieee80211_request_sched_scan_start()
1337 req->ie_len, bands_used, rate_masks, &chandef, in __ieee80211_request_sched_scan_start()
1342 rcu_assign_pointer(local->sched_scan_sdata, sdata); in __ieee80211_request_sched_scan_start()
1343 rcu_assign_pointer(local->sched_scan_req, req); in __ieee80211_request_sched_scan_start()
1350 /* Clean in case of failure after HW restart or upon resume. */ in __ieee80211_request_sched_scan_start()
1351 RCU_INIT_POINTER(local->sched_scan_sdata, NULL); in __ieee80211_request_sched_scan_start()
1352 RCU_INIT_POINTER(local->sched_scan_req, NULL); in __ieee80211_request_sched_scan_start()
1361 struct ieee80211_local *local = sdata->local; in ieee80211_request_sched_scan_start()
1364 mutex_lock(&local->mtx); in ieee80211_request_sched_scan_start()
1366 if (rcu_access_pointer(local->sched_scan_sdata)) { in ieee80211_request_sched_scan_start()
1367 mutex_unlock(&local->mtx); in ieee80211_request_sched_scan_start()
1368 return -EBUSY; in ieee80211_request_sched_scan_start()
1373 mutex_unlock(&local->mtx); in ieee80211_request_sched_scan_start()
1380 int ret = -ENOENT; in ieee80211_request_sched_scan_stop()
1382 mutex_lock(&local->mtx); in ieee80211_request_sched_scan_stop()
1384 if (!local->ops->sched_scan_stop) { in ieee80211_request_sched_scan_stop()
1385 ret = -ENOTSUPP; in ieee80211_request_sched_scan_stop()
1390 RCU_INIT_POINTER(local->sched_scan_req, NULL); in ieee80211_request_sched_scan_stop()
1392 sched_scan_sdata = rcu_dereference_protected(local->sched_scan_sdata, in ieee80211_request_sched_scan_stop()
1393 lockdep_is_held(&local->mtx)); in ieee80211_request_sched_scan_stop()
1397 RCU_INIT_POINTER(local->sched_scan_sdata, NULL); in ieee80211_request_sched_scan_stop()
1400 mutex_unlock(&local->mtx); in ieee80211_request_sched_scan_stop()
1405 void ieee80211_sched_scan_results(struct ieee80211_hw *hw) in ieee80211_sched_scan_results() argument
1407 struct ieee80211_local *local = hw_to_local(hw); in ieee80211_sched_scan_results()
1411 cfg80211_sched_scan_results(hw->wiphy, 0); in ieee80211_sched_scan_results()
1417 mutex_lock(&local->mtx); in ieee80211_sched_scan_end()
1419 if (!rcu_access_pointer(local->sched_scan_sdata)) { in ieee80211_sched_scan_end()
1420 mutex_unlock(&local->mtx); in ieee80211_sched_scan_end()
1424 RCU_INIT_POINTER(local->sched_scan_sdata, NULL); in ieee80211_sched_scan_end()
1427 RCU_INIT_POINTER(local->sched_scan_req, NULL); in ieee80211_sched_scan_end()
1429 mutex_unlock(&local->mtx); in ieee80211_sched_scan_end()
1431 cfg80211_sched_scan_stopped_locked(local->hw.wiphy, 0); in ieee80211_sched_scan_end()
1444 void ieee80211_sched_scan_stopped(struct ieee80211_hw *hw) in ieee80211_sched_scan_stopped() argument
1446 struct ieee80211_local *local = hw_to_local(hw); in ieee80211_sched_scan_stopped()
1455 if (local->in_reconfig) in ieee80211_sched_scan_stopped()
1458 wiphy_work_queue(hw->wiphy, &local->sched_scan_stopped_work); in ieee80211_sched_scan_stopped()