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) 2018-2020 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()
68 bss->device_ts_beacon = rx_status->device_timestamp; in ieee80211_update_bss_from_elems()
70 bss->device_ts_presp = rx_status->device_timestamp; in ieee80211_update_bss_from_elems()
72 if (elems->parse_error) { in ieee80211_update_bss_from_elems()
74 bss->corrupt_data |= IEEE80211_BSS_CORRUPT_BEACON; in ieee80211_update_bss_from_elems()
76 bss->corrupt_data |= IEEE80211_BSS_CORRUPT_PROBE_RESP; in ieee80211_update_bss_from_elems()
79 bss->corrupt_data &= ~IEEE80211_BSS_CORRUPT_BEACON; in ieee80211_update_bss_from_elems()
81 bss->corrupt_data &= ~IEEE80211_BSS_CORRUPT_PROBE_RESP; in ieee80211_update_bss_from_elems()
85 if (elems->erp_info && (!elems->parse_error || in ieee80211_update_bss_from_elems()
86 !(bss->valid_data & IEEE80211_BSS_VALID_ERP))) { in ieee80211_update_bss_from_elems()
87 bss->erp_value = elems->erp_info[0]; in ieee80211_update_bss_from_elems()
88 bss->has_erp_value = true; in ieee80211_update_bss_from_elems()
89 if (!elems->parse_error) in ieee80211_update_bss_from_elems()
90 bss->valid_data |= IEEE80211_BSS_VALID_ERP; in ieee80211_update_bss_from_elems()
94 if (!elems->parse_error || in ieee80211_update_bss_from_elems()
95 !(bss->valid_data & IEEE80211_BSS_VALID_RATES)) { in ieee80211_update_bss_from_elems()
97 if (elems->supp_rates) { in ieee80211_update_bss_from_elems()
99 if (clen > elems->supp_rates_len) in ieee80211_update_bss_from_elems()
100 clen = elems->supp_rates_len; in ieee80211_update_bss_from_elems()
101 memcpy(bss->supp_rates, elems->supp_rates, clen); in ieee80211_update_bss_from_elems()
104 if (elems->ext_supp_rates) { in ieee80211_update_bss_from_elems()
105 clen = IEEE80211_MAX_SUPP_RATES - srlen; in ieee80211_update_bss_from_elems()
106 if (clen > elems->ext_supp_rates_len) in ieee80211_update_bss_from_elems()
107 clen = elems->ext_supp_rates_len; in ieee80211_update_bss_from_elems()
108 memcpy(bss->supp_rates + srlen, elems->ext_supp_rates, in ieee80211_update_bss_from_elems()
113 bss->supp_rates_len = srlen; in ieee80211_update_bss_from_elems()
114 if (!elems->parse_error) in ieee80211_update_bss_from_elems()
115 bss->valid_data |= IEEE80211_BSS_VALID_RATES; in ieee80211_update_bss_from_elems()
119 if (!elems->parse_error || in ieee80211_update_bss_from_elems()
120 !(bss->valid_data & IEEE80211_BSS_VALID_WMM)) { in ieee80211_update_bss_from_elems()
121 bss->wmm_used = elems->wmm_param || elems->wmm_info; in ieee80211_update_bss_from_elems()
122 bss->uapsd_supported = is_uapsd_supported(elems); in ieee80211_update_bss_from_elems()
123 if (!elems->parse_error) in ieee80211_update_bss_from_elems()
124 bss->valid_data |= IEEE80211_BSS_VALID_WMM; in ieee80211_update_bss_from_elems()
129 local->hw.wiphy->bands[rx_status->band]; in ieee80211_update_bss_from_elems()
130 if (!(rx_status->encoding == RX_ENC_HT) && in ieee80211_update_bss_from_elems()
131 !(rx_status->encoding == RX_ENC_VHT)) in ieee80211_update_bss_from_elems()
132 bss->beacon_rate = in ieee80211_update_bss_from_elems()
133 &sband->bitrates[rx_status->rate_idx]; in ieee80211_update_bss_from_elems()
136 if (elems->vht_cap_elem) in ieee80211_update_bss_from_elems()
137 bss->vht_cap_info = in ieee80211_update_bss_from_elems()
138 le32_to_cpu(elems->vht_cap_elem->vht_cap_info); in ieee80211_update_bss_from_elems()
140 bss->vht_cap_info = 0; in ieee80211_update_bss_from_elems()
149 bool beacon = ieee80211_is_beacon(mgmt->frame_control) || in ieee80211_bss_info_update()
150 ieee80211_is_s1g_beacon(mgmt->frame_control); in ieee80211_bss_info_update()
154 .boottime_ns = rx_status->boottime_ns, in ieee80211_bss_info_update()
162 if (rx_status->flag & RX_FLAG_NO_SIGNAL_VAL) in ieee80211_bss_info_update()
164 else if (ieee80211_hw_check(&local->hw, SIGNAL_DBM)) in ieee80211_bss_info_update()
165 bss_meta.signal = rx_status->signal * 100; in ieee80211_bss_info_update()
166 else if (ieee80211_hw_check(&local->hw, SIGNAL_UNSPEC)) in ieee80211_bss_info_update()
167 bss_meta.signal = (rx_status->signal * 100) / local->hw.max_signal; in ieee80211_bss_info_update()
170 if (rx_status->bw == RATE_INFO_BW_5) in ieee80211_bss_info_update()
172 else if (rx_status->bw == RATE_INFO_BW_10) in ieee80211_bss_info_update()
178 scan_sdata = rcu_dereference(local->scan_sdata); in ieee80211_bss_info_update()
179 if (scan_sdata && scan_sdata->vif.type == NL80211_IFTYPE_STATION && in ieee80211_bss_info_update()
180 scan_sdata->vif.bss_conf.assoc && in ieee80211_bss_info_update()
186 scan_sdata->vif.bss_conf.bssid); in ieee80211_bss_info_update()
190 cbss = cfg80211_inform_bss_frame_data(local->hw.wiphy, &bss_meta, in ieee80211_bss_info_update()
195 if (ieee80211_is_probe_resp(mgmt->frame_control)) { in ieee80211_bss_info_update()
196 elements = mgmt->u.probe_resp.variable; in ieee80211_bss_info_update()
199 } else if (ieee80211_is_s1g_beacon(mgmt->frame_control)) { in ieee80211_bss_info_update()
203 elements = ext->u.s1g_beacon.variable; in ieee80211_bss_info_update()
206 elements = mgmt->u.beacon.variable; in ieee80211_bss_info_update()
212 ieee802_11_parse_elems(elements, len - baselen, false, &elems, in ieee80211_bss_info_update()
213 mgmt->bssid, cbss->bssid); in ieee80211_bss_info_update()
216 signal_valid = channel == cbss->channel; in ieee80211_bss_info_update()
218 rx_status->flag |= RX_FLAG_NO_SIGNAL_VAL; in ieee80211_bss_info_update()
220 bss = (void *)cbss->priv; in ieee80211_bss_info_update()
223 list_for_each_entry(non_tx_cbss, &cbss->nontrans_list, nontrans_list) { in ieee80211_bss_info_update()
224 non_tx_bss = (void *)non_tx_cbss->priv; in ieee80211_bss_info_update()
246 return ether_addr_equal(da, sdata->vif.addr); in ieee80211_scan_accept_presp()
253 struct ieee80211_mgmt *mgmt = (void *)skb->data; in ieee80211_scan_rx()
259 if (!ieee80211_is_probe_resp(mgmt->frame_control) && in ieee80211_scan_rx()
260 !ieee80211_is_beacon(mgmt->frame_control) && in ieee80211_scan_rx()
261 !ieee80211_is_s1g_beacon(mgmt->frame_control)) in ieee80211_scan_rx()
264 if (ieee80211_is_s1g_beacon(mgmt->frame_control)) { in ieee80211_scan_rx()
265 if (ieee80211_is_s1g_short_beacon(mgmt->frame_control)) in ieee80211_scan_rx()
273 if (skb->len < min_hdr_len) in ieee80211_scan_rx()
276 sdata1 = rcu_dereference(local->scan_sdata); in ieee80211_scan_rx()
277 sdata2 = rcu_dereference(local->sched_scan_sdata); in ieee80211_scan_rx()
282 if (test_and_clear_bit(SCAN_BEACON_WAIT, &local->scanning)) { in ieee80211_scan_rx()
284 * we were passive scanning because of radar/no-IR, but in ieee80211_scan_rx()
288 set_bit(SCAN_BEACON_DONE, &local->scanning); in ieee80211_scan_rx()
289 ieee80211_queue_delayed_work(&local->hw, &local->scan_work, 0); in ieee80211_scan_rx()
292 if (ieee80211_is_probe_resp(mgmt->frame_control)) { in ieee80211_scan_rx()
297 scan_req = rcu_dereference(local->scan_req); in ieee80211_scan_rx()
298 sched_scan_req = rcu_dereference(local->sched_scan_req); in ieee80211_scan_rx()
301 scan_req_flags = scan_req->flags; in ieee80211_scan_rx()
304 sched_scan_req_flags = sched_scan_req->flags; in ieee80211_scan_rx()
306 /* ignore ProbeResp to foreign address or non-bcast (OCE) in ieee80211_scan_rx()
310 mgmt->da) && in ieee80211_scan_rx()
312 mgmt->da)) in ieee80211_scan_rx()
316 channel = ieee80211_get_channel_khz(local->hw.wiphy, in ieee80211_scan_rx()
319 if (!channel || channel->flags & IEEE80211_CHAN_DISABLED) in ieee80211_scan_rx()
323 mgmt, skb->len, in ieee80211_scan_rx()
336 chandef->width = NL80211_CHAN_WIDTH_5; in ieee80211_prepare_scan_chandef()
339 chandef->width = NL80211_CHAN_WIDTH_10; in ieee80211_prepare_scan_chandef()
342 chandef->width = NL80211_CHAN_WIDTH_20_NOHT; in ieee80211_prepare_scan_chandef()
350 struct ieee80211_local *local = sdata->local; in ieee80211_prep_hw_scan()
357 req = rcu_dereference_protected(local->scan_req, in ieee80211_prep_hw_scan()
358 lockdep_is_held(&local->mtx)); in ieee80211_prep_hw_scan()
360 if (test_bit(SCAN_HW_CANCELLED, &local->scanning)) in ieee80211_prep_hw_scan()
363 if (ieee80211_hw_check(&local->hw, SINGLE_SCAN_ON_ALL_BANDS)) { in ieee80211_prep_hw_scan()
364 for (i = 0; i < req->n_channels; i++) { in ieee80211_prep_hw_scan()
365 local->hw_scan_req->req.channels[i] = req->channels[i]; in ieee80211_prep_hw_scan()
366 bands_used |= BIT(req->channels[i]->band); in ieee80211_prep_hw_scan()
369 n_chans = req->n_channels; in ieee80211_prep_hw_scan()
372 if (local->hw_scan_band == NUM_NL80211_BANDS) in ieee80211_prep_hw_scan()
377 for (i = 0; i < req->n_channels; i++) { in ieee80211_prep_hw_scan()
378 if (req->channels[i]->band != in ieee80211_prep_hw_scan()
379 local->hw_scan_band) in ieee80211_prep_hw_scan()
381 local->hw_scan_req->req.channels[n_chans] = in ieee80211_prep_hw_scan()
382 req->channels[i]; in ieee80211_prep_hw_scan()
384 bands_used |= BIT(req->channels[i]->band); in ieee80211_prep_hw_scan()
387 local->hw_scan_band++; in ieee80211_prep_hw_scan()
391 local->hw_scan_req->req.n_channels = n_chans; in ieee80211_prep_hw_scan()
392 ieee80211_prepare_scan_chandef(&chandef, req->scan_width); in ieee80211_prep_hw_scan()
394 if (req->flags & NL80211_SCAN_FLAG_MIN_PREQ_CONTENT) in ieee80211_prep_hw_scan()
398 (u8 *)local->hw_scan_req->req.ie, in ieee80211_prep_hw_scan()
399 local->hw_scan_ies_bufsize, in ieee80211_prep_hw_scan()
400 &local->hw_scan_req->ies, in ieee80211_prep_hw_scan()
401 req->ie, req->ie_len, in ieee80211_prep_hw_scan()
402 bands_used, req->rates, &chandef, in ieee80211_prep_hw_scan()
404 local->hw_scan_req->req.ie_len = ielen; in ieee80211_prep_hw_scan()
405 local->hw_scan_req->req.no_cck = req->no_cck; in ieee80211_prep_hw_scan()
406 ether_addr_copy(local->hw_scan_req->req.mac_addr, req->mac_addr); in ieee80211_prep_hw_scan()
407 ether_addr_copy(local->hw_scan_req->req.mac_addr_mask, in ieee80211_prep_hw_scan()
408 req->mac_addr_mask); in ieee80211_prep_hw_scan()
409 ether_addr_copy(local->hw_scan_req->req.bssid, req->bssid); in ieee80211_prep_hw_scan()
414 static void __ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted) in __ieee80211_scan_completed() argument
416 struct ieee80211_local *local = hw_to_local(hw); in __ieee80211_scan_completed()
417 bool hw_scan = test_bit(SCAN_HW_SCANNING, &local->scanning); in __ieee80211_scan_completed()
418 bool was_scanning = local->scanning; in __ieee80211_scan_completed()
423 lockdep_assert_held(&local->mtx); in __ieee80211_scan_completed()
426 * It's ok to abort a not-yet-running scan (that in __ieee80211_scan_completed()
428 * local->scan_req next), but not to complete it in __ieee80211_scan_completed()
431 if (WARN_ON(!local->scanning && !aborted)) in __ieee80211_scan_completed()
434 if (WARN_ON(!local->scan_req)) in __ieee80211_scan_completed()
437 scan_sdata = rcu_dereference_protected(local->scan_sdata, in __ieee80211_scan_completed()
438 lockdep_is_held(&local->mtx)); in __ieee80211_scan_completed()
441 !ieee80211_hw_check(&local->hw, SINGLE_SCAN_ON_ALL_BANDS) && in __ieee80211_scan_completed()
446 rcu_dereference_protected(local->scan_sdata, in __ieee80211_scan_completed()
447 lockdep_is_held(&local->mtx)), in __ieee80211_scan_completed()
448 local->hw_scan_req); in __ieee80211_scan_completed()
453 /* HW scan failed and is going to be reported as aborted, in __ieee80211_scan_completed()
456 memset(&local->scan_info, 0, sizeof(local->scan_info)); in __ieee80211_scan_completed()
460 kfree(local->hw_scan_req); in __ieee80211_scan_completed()
461 local->hw_scan_req = NULL; in __ieee80211_scan_completed()
463 scan_req = rcu_dereference_protected(local->scan_req, in __ieee80211_scan_completed()
464 lockdep_is_held(&local->mtx)); in __ieee80211_scan_completed()
466 RCU_INIT_POINTER(local->scan_req, NULL); in __ieee80211_scan_completed()
467 RCU_INIT_POINTER(local->scan_sdata, NULL); in __ieee80211_scan_completed()
469 local->scanning = 0; in __ieee80211_scan_completed()
470 local->scan_chandef.chan = NULL; in __ieee80211_scan_completed()
474 if (scan_req != local->int_scan_req) { in __ieee80211_scan_completed()
475 local->scan_info.aborted = aborted; in __ieee80211_scan_completed()
476 cfg80211_scan_done(scan_req, &local->scan_info); in __ieee80211_scan_completed()
495 * just be a no-op for the particular interface. in __ieee80211_scan_completed()
497 list_for_each_entry_rcu(sdata, &local->interfaces, list) { in __ieee80211_scan_completed()
499 ieee80211_queue_work(&sdata->local->hw, &sdata->work); in __ieee80211_scan_completed()
506 void ieee80211_scan_completed(struct ieee80211_hw *hw, in ieee80211_scan_completed() argument
509 struct ieee80211_local *local = hw_to_local(hw); in ieee80211_scan_completed()
511 trace_api_scan_completed(local, info->aborted); in ieee80211_scan_completed()
513 set_bit(SCAN_COMPLETED, &local->scanning); in ieee80211_scan_completed()
514 if (info->aborted) in ieee80211_scan_completed()
515 set_bit(SCAN_ABORTED, &local->scanning); in ieee80211_scan_completed()
517 memcpy(&local->scan_info, info, sizeof(*info)); in ieee80211_scan_completed()
519 ieee80211_queue_delayed_work(&local->hw, &local->scan_work, 0); in ieee80211_scan_completed()
526 /* Software scan is not supported in multi-channel cases */ in ieee80211_start_sw_scan()
527 if (local->use_chanctx) in ieee80211_start_sw_scan()
528 return -EOPNOTSUPP; in ieee80211_start_sw_scan()
535 * the responses. After all channels are scanned, tune back to the in ieee80211_start_sw_scan()
539 * Note that while local->sw_scanning is true everything else but in ieee80211_start_sw_scan()
543 drv_sw_scan_start(local, sdata, local->scan_addr); in ieee80211_start_sw_scan()
545 local->leave_oper_channel_time = jiffies; in ieee80211_start_sw_scan()
546 local->next_scan_state = SCAN_DECISION; in ieee80211_start_sw_scan()
547 local->scan_channel_idx = 0; in ieee80211_start_sw_scan()
559 ieee80211_queue_delayed_work(&local->hw, in ieee80211_start_sw_scan()
560 &local->scan_work, 0); in ieee80211_start_sw_scan()
567 struct ieee80211_local *local = sdata->local; in __ieee80211_can_leave_ch()
573 if (!regulatory_pre_cac_allowed(local->hw.wiphy)) in __ieee80211_can_leave_ch()
576 mutex_lock(&local->iflist_mtx); in __ieee80211_can_leave_ch()
577 list_for_each_entry(sdata_iter, &local->interfaces, list) { in __ieee80211_can_leave_ch()
578 if (sdata_iter->wdev.cac_started) { in __ieee80211_can_leave_ch()
579 mutex_unlock(&local->iflist_mtx); in __ieee80211_can_leave_ch()
583 mutex_unlock(&local->iflist_mtx); in __ieee80211_can_leave_ch()
594 if (!list_empty(&local->roc_list)) in ieee80211_can_scan()
597 if (sdata->vif.type == NL80211_IFTYPE_STATION && in ieee80211_can_scan()
598 sdata->u.mgd.flags & IEEE80211_STA_CONNECTION_POLL) in ieee80211_can_scan()
606 lockdep_assert_held(&local->mtx); in ieee80211_run_deferred_scan()
608 if (!local->scan_req || local->scanning) in ieee80211_run_deferred_scan()
613 local->scan_sdata, in ieee80211_run_deferred_scan()
614 lockdep_is_held(&local->mtx)))) in ieee80211_run_deferred_scan()
617 ieee80211_queue_delayed_work(&local->hw, &local->scan_work, in ieee80211_run_deferred_scan()
636 struct ieee80211_hdr *hdr = (void *)skb->data; in ieee80211_send_scan_probe_req()
640 info->control.flags |= IEEE80211_TX_CTRL_NO_SEQNO; in ieee80211_send_scan_probe_req()
641 hdr->seq_ctrl = in ieee80211_send_scan_probe_req()
644 IEEE80211_SKB_CB(skb)->flags |= tx_flags; in ieee80211_send_scan_probe_req()
645 IEEE80211_SKB_CB(skb)->control.flags |= IEEE80211_TX_CTRL_DONT_USE_RATE_MASK; in ieee80211_send_scan_probe_req()
646 ieee80211_tx_skb_tid_band(sdata, skb, 7, channel->band); in ieee80211_send_scan_probe_req()
656 enum nl80211_band band = local->hw.conf.chandef.chan->band; in ieee80211_scan_state_send_probe()
659 scan_req = rcu_dereference_protected(local->scan_req, in ieee80211_scan_state_send_probe()
660 lockdep_is_held(&local->mtx)); in ieee80211_scan_state_send_probe()
663 if (scan_req->no_cck) in ieee80211_scan_state_send_probe()
665 if (scan_req->flags & NL80211_SCAN_FLAG_MIN_PREQ_CONTENT) in ieee80211_scan_state_send_probe()
667 if (scan_req->flags & NL80211_SCAN_FLAG_RANDOM_SN) in ieee80211_scan_state_send_probe()
670 sdata = rcu_dereference_protected(local->scan_sdata, in ieee80211_scan_state_send_probe()
671 lockdep_is_held(&local->mtx)); in ieee80211_scan_state_send_probe()
673 for (i = 0; i < scan_req->n_ssids; i++) in ieee80211_scan_state_send_probe()
675 sdata, local->scan_addr, scan_req->bssid, in ieee80211_scan_state_send_probe()
676 scan_req->ssids[i].ssid, scan_req->ssids[i].ssid_len, in ieee80211_scan_state_send_probe()
677 scan_req->ie, scan_req->ie_len, in ieee80211_scan_state_send_probe()
678 scan_req->rates[band], flags, in ieee80211_scan_state_send_probe()
679 tx_flags, local->hw.conf.chandef.chan); in ieee80211_scan_state_send_probe()
686 local->next_scan_state = SCAN_DECISION; in ieee80211_scan_state_send_probe()
692 struct ieee80211_local *local = sdata->local; in __ieee80211_start_scan()
693 bool hw_scan = local->ops->hw_scan; in __ieee80211_start_scan()
696 lockdep_assert_held(&local->mtx); in __ieee80211_start_scan()
698 if (local->scan_req) in __ieee80211_start_scan()
699 return -EBUSY; in __ieee80211_start_scan()
702 return -EBUSY; in __ieee80211_start_scan()
706 rcu_assign_pointer(local->scan_req, req); in __ieee80211_start_scan()
707 rcu_assign_pointer(local->scan_sdata, sdata); in __ieee80211_start_scan()
715 local->hw_scan_ies_bufsize = local->scan_ies_len + req->ie_len; in __ieee80211_start_scan()
717 if (ieee80211_hw_check(&local->hw, SINGLE_SCAN_ON_ALL_BANDS)) { in __ieee80211_start_scan()
721 for (i = 0; i < req->n_channels; i++) { in __ieee80211_start_scan()
722 if (bands_counted & BIT(req->channels[i]->band)) in __ieee80211_start_scan()
724 bands_counted |= BIT(req->channels[i]->band); in __ieee80211_start_scan()
728 local->hw_scan_ies_bufsize *= n_bands; in __ieee80211_start_scan()
731 local->hw_scan_req = kmalloc( in __ieee80211_start_scan()
732 sizeof(*local->hw_scan_req) + in __ieee80211_start_scan()
733 req->n_channels * sizeof(req->channels[0]) + in __ieee80211_start_scan()
734 local->hw_scan_ies_bufsize, GFP_KERNEL); in __ieee80211_start_scan()
735 if (!local->hw_scan_req) in __ieee80211_start_scan()
736 return -ENOMEM; in __ieee80211_start_scan()
738 local->hw_scan_req->req.ssids = req->ssids; in __ieee80211_start_scan()
739 local->hw_scan_req->req.n_ssids = req->n_ssids; in __ieee80211_start_scan()
740 ies = (u8 *)local->hw_scan_req + in __ieee80211_start_scan()
741 sizeof(*local->hw_scan_req) + in __ieee80211_start_scan()
742 req->n_channels * sizeof(req->channels[0]); in __ieee80211_start_scan()
743 local->hw_scan_req->req.ie = ies; in __ieee80211_start_scan()
744 local->hw_scan_req->req.flags = req->flags; in __ieee80211_start_scan()
745 eth_broadcast_addr(local->hw_scan_req->req.bssid); in __ieee80211_start_scan()
746 local->hw_scan_req->req.duration = req->duration; in __ieee80211_start_scan()
747 local->hw_scan_req->req.duration_mandatory = in __ieee80211_start_scan()
748 req->duration_mandatory; in __ieee80211_start_scan()
750 local->hw_scan_band = 0; in __ieee80211_start_scan()
751 local->hw_scan_req->req.n_6ghz_params = req->n_6ghz_params; in __ieee80211_start_scan()
752 local->hw_scan_req->req.scan_6ghz_params = in __ieee80211_start_scan()
753 req->scan_6ghz_params; in __ieee80211_start_scan()
754 local->hw_scan_req->req.scan_6ghz = req->scan_6ghz; in __ieee80211_start_scan()
757 * After allocating local->hw_scan_req, we must in __ieee80211_start_scan()
765 rcu_assign_pointer(local->scan_req, req); in __ieee80211_start_scan()
766 rcu_assign_pointer(local->scan_sdata, sdata); in __ieee80211_start_scan()
768 if (req->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) in __ieee80211_start_scan()
769 get_random_mask_addr(local->scan_addr, in __ieee80211_start_scan()
770 req->mac_addr, in __ieee80211_start_scan()
771 req->mac_addr_mask); in __ieee80211_start_scan()
773 memcpy(local->scan_addr, sdata->vif.addr, ETH_ALEN); in __ieee80211_start_scan()
776 __set_bit(SCAN_HW_SCANNING, &local->scanning); in __ieee80211_start_scan()
777 } else if ((req->n_channels == 1) && in __ieee80211_start_scan()
778 (req->channels[0] == local->_oper_chandef.chan)) { in __ieee80211_start_scan()
785 __set_bit(SCAN_ONCHANNEL_SCANNING, &local->scanning); in __ieee80211_start_scan()
791 drv_sw_scan_start(local, sdata, local->scan_addr); in __ieee80211_start_scan()
793 ieee80211_configure_filter(local); /* accept probe-responses */ in __ieee80211_start_scan()
798 if ((req->channels[0]->flags & (IEEE80211_CHAN_NO_IR | in __ieee80211_start_scan()
800 !req->n_ssids) { in __ieee80211_start_scan()
802 if (req->n_ssids) in __ieee80211_start_scan()
803 set_bit(SCAN_BEACON_WAIT, &local->scanning); in __ieee80211_start_scan()
810 ieee80211_queue_delayed_work(&local->hw, &local->scan_work, in __ieee80211_start_scan()
815 __set_bit(SCAN_SW_SCANNING, &local->scanning); in __ieee80211_start_scan()
822 rc = drv_hw_scan(local, sdata, local->hw_scan_req); in __ieee80211_start_scan()
828 kfree(local->hw_scan_req); in __ieee80211_start_scan()
829 local->hw_scan_req = NULL; in __ieee80211_start_scan()
830 local->scanning = 0; in __ieee80211_start_scan()
834 local->scan_req = NULL; in __ieee80211_start_scan()
835 RCU_INIT_POINTER(local->scan_sdata, NULL); in __ieee80211_start_scan()
840 * we can't fall back to software for P2P-GO in __ieee80211_start_scan()
843 if (ieee80211_vif_type_p2p(&sdata->vif) == in __ieee80211_start_scan()
845 return -EOPNOTSUPP; in __ieee80211_start_scan()
860 if (chan->flags & (IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_RADAR)) in ieee80211_scan_get_channel_time()
881 mutex_lock(&local->iflist_mtx); in ieee80211_scan_state_decision()
882 list_for_each_entry(sdata, &local->interfaces, list) { in ieee80211_scan_state_decision()
886 if (sdata->vif.type == NL80211_IFTYPE_STATION) { in ieee80211_scan_state_decision()
887 if (sdata->u.mgd.associated) { in ieee80211_scan_state_decision()
890 if (!qdisc_all_tx_empty(sdata->dev)) { in ieee80211_scan_state_decision()
897 mutex_unlock(&local->iflist_mtx); in ieee80211_scan_state_decision()
899 scan_req = rcu_dereference_protected(local->scan_req, in ieee80211_scan_state_decision()
900 lockdep_is_held(&local->mtx)); in ieee80211_scan_state_decision()
902 next_chan = scan_req->channels[local->scan_channel_idx]; in ieee80211_scan_state_decision()
909 * Keep good latency, do not stay off-channel more than 125 ms. in ieee80211_scan_state_decision()
914 local->leave_oper_channel_time + HZ / 8); in ieee80211_scan_state_decision()
917 if (scan_req->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) in ieee80211_scan_state_decision()
927 local->next_scan_state = next_scan_state; in ieee80211_scan_state_decision()
940 scan_req = rcu_dereference_protected(local->scan_req, in ieee80211_scan_state_set_channel()
941 lockdep_is_held(&local->mtx)); in ieee80211_scan_state_set_channel()
944 chan = scan_req->channels[local->scan_channel_idx]; in ieee80211_scan_state_set_channel()
946 local->scan_chandef.chan = chan; in ieee80211_scan_state_set_channel()
947 local->scan_chandef.center_freq1 = chan->center_freq; in ieee80211_scan_state_set_channel()
948 local->scan_chandef.freq1_offset = chan->freq_offset; in ieee80211_scan_state_set_channel()
949 local->scan_chandef.center_freq2 = 0; in ieee80211_scan_state_set_channel()
952 * across all channels) for now since channel width is specific to each in ieee80211_scan_state_set_channel()
956 if (chan->band == NL80211_BAND_S1GHZ) { in ieee80211_scan_state_set_channel()
957 local->scan_chandef.width = ieee80211_s1g_channel_width(chan); in ieee80211_scan_state_set_channel()
961 switch (scan_req->scan_width) { in ieee80211_scan_state_set_channel()
963 local->scan_chandef.width = NL80211_CHAN_WIDTH_5; in ieee80211_scan_state_set_channel()
966 local->scan_chandef.width = NL80211_CHAN_WIDTH_10; in ieee80211_scan_state_set_channel()
970 /* If scanning on oper channel, use whatever channel-type in ieee80211_scan_state_set_channel()
974 &local->_oper_chandef); in ieee80211_scan_state_set_channel()
975 if (chan == local->_oper_chandef.chan && in ieee80211_scan_state_set_channel()
976 oper_scan_width == scan_req->scan_width) in ieee80211_scan_state_set_channel()
977 local->scan_chandef = local->_oper_chandef; in ieee80211_scan_state_set_channel()
979 local->scan_chandef.width = NL80211_CHAN_WIDTH_20_NOHT; in ieee80211_scan_state_set_channel()
993 local->scan_channel_idx++; in ieee80211_scan_state_set_channel()
997 local->next_scan_state = SCAN_DECISION; in ieee80211_scan_state_set_channel()
1005 * received - and the received frame would update the NAV). in ieee80211_scan_state_set_channel()
1011 if ((chan->flags & (IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_RADAR)) || in ieee80211_scan_state_set_channel()
1012 !scan_req->n_ssids) { in ieee80211_scan_state_set_channel()
1014 local->next_scan_state = SCAN_DECISION; in ieee80211_scan_state_set_channel()
1015 if (scan_req->n_ssids) in ieee80211_scan_state_set_channel()
1016 set_bit(SCAN_BEACON_WAIT, &local->scanning); in ieee80211_scan_state_set_channel()
1022 local->next_scan_state = SCAN_SEND_PROBE; in ieee80211_scan_state_set_channel()
1029 local->scan_chandef.chan = NULL; in ieee80211_scan_state_suspend()
1037 local->next_scan_state = SCAN_RESUME; in ieee80211_scan_state_suspend()
1045 if (local->ops->flush) { in ieee80211_scan_state_resume()
1052 local->leave_oper_channel_time = jiffies; in ieee80211_scan_state_resume()
1055 local->next_scan_state = SCAN_SET_CHANNEL; in ieee80211_scan_state_resume()
1067 mutex_lock(&local->mtx); in ieee80211_scan_work()
1074 sdata = rcu_dereference_protected(local->scan_sdata, in ieee80211_scan_work()
1075 lockdep_is_held(&local->mtx)); in ieee80211_scan_work()
1076 scan_req = rcu_dereference_protected(local->scan_req, in ieee80211_scan_work()
1077 lockdep_is_held(&local->mtx)); in ieee80211_scan_work()
1079 /* When scanning on-channel, the first-callback means completed. */ in ieee80211_scan_work()
1080 if (test_bit(SCAN_ONCHANNEL_SCANNING, &local->scanning)) { in ieee80211_scan_work()
1081 aborted = test_and_clear_bit(SCAN_ABORTED, &local->scanning); in ieee80211_scan_work()
1085 if (test_and_clear_bit(SCAN_COMPLETED, &local->scanning)) { in ieee80211_scan_work()
1086 aborted = test_and_clear_bit(SCAN_ABORTED, &local->scanning); in ieee80211_scan_work()
1093 if (!local->scanning) { in ieee80211_scan_work()
1096 RCU_INIT_POINTER(local->scan_req, NULL); in ieee80211_scan_work()
1097 RCU_INIT_POINTER(local->scan_sdata, NULL); in ieee80211_scan_work()
1102 rcu_assign_pointer(local->scan_req, scan_req); in ieee80211_scan_work()
1109 clear_bit(SCAN_BEACON_WAIT, &local->scanning); in ieee80211_scan_work()
1121 if (test_and_clear_bit(SCAN_BEACON_DONE, &local->scanning) && in ieee80211_scan_work()
1122 local->next_scan_state == SCAN_DECISION) in ieee80211_scan_work()
1123 local->next_scan_state = SCAN_SEND_PROBE; in ieee80211_scan_work()
1125 switch (local->next_scan_state) { in ieee80211_scan_work()
1127 /* if no more bands/channels left, complete scan */ in ieee80211_scan_work()
1128 if (local->scan_channel_idx >= scan_req->n_channels) { in ieee80211_scan_work()
1152 ieee80211_queue_delayed_work(&local->hw, &local->scan_work, next_delay); in ieee80211_scan_work()
1156 __ieee80211_scan_completed(&local->hw, aborted); in ieee80211_scan_work()
1158 mutex_unlock(&local->mtx); in ieee80211_scan_work()
1166 mutex_lock(&sdata->local->mtx); in ieee80211_request_scan()
1168 mutex_unlock(&sdata->local->mtx); in ieee80211_request_scan()
1175 struct ieee80211_channel **channels, in ieee80211_request_ibss_scan() argument
1179 struct ieee80211_local *local = sdata->local; in ieee80211_request_ibss_scan()
1180 int ret = -EBUSY, i, n_ch = 0; in ieee80211_request_ibss_scan()
1183 mutex_lock(&local->mtx); in ieee80211_request_ibss_scan()
1186 if (local->scan_req) in ieee80211_request_ibss_scan()
1190 if (!channels) { in ieee80211_request_ibss_scan()
1194 if (!local->hw.wiphy->bands[band] || in ieee80211_request_ibss_scan()
1198 max_n = local->hw.wiphy->bands[band]->n_channels; in ieee80211_request_ibss_scan()
1201 &local->hw.wiphy->bands[band]->channels[i]; in ieee80211_request_ibss_scan()
1203 if (tmp_ch->flags & (IEEE80211_CHAN_NO_IR | in ieee80211_request_ibss_scan()
1207 local->int_scan_req->channels[n_ch] = tmp_ch; in ieee80211_request_ibss_scan()
1215 local->int_scan_req->n_channels = n_ch; in ieee80211_request_ibss_scan()
1218 if (channels[i]->flags & (IEEE80211_CHAN_NO_IR | in ieee80211_request_ibss_scan()
1222 local->int_scan_req->channels[n_ch] = channels[i]; in ieee80211_request_ibss_scan()
1229 local->int_scan_req->n_channels = n_ch; in ieee80211_request_ibss_scan()
1232 local->int_scan_req->ssids = &local->scan_ssid; in ieee80211_request_ibss_scan()
1233 local->int_scan_req->n_ssids = 1; in ieee80211_request_ibss_scan()
1234 local->int_scan_req->scan_width = scan_width; in ieee80211_request_ibss_scan()
1235 memcpy(local->int_scan_req->ssids[0].ssid, ssid, IEEE80211_MAX_SSID_LEN); in ieee80211_request_ibss_scan()
1236 local->int_scan_req->ssids[0].ssid_len = ssid_len; in ieee80211_request_ibss_scan()
1238 ret = __ieee80211_start_scan(sdata, sdata->local->int_scan_req); in ieee80211_request_ibss_scan()
1240 mutex_unlock(&local->mtx); in ieee80211_request_ibss_scan()
1245 * Only call this function when a scan can't be queued -- under RTNL.
1254 * - we can not call __ieee80211_scan_completed() as when in ieee80211_scan_cancel()
1256 * local->hw_scan_req to operate on 5G band, what race with in ieee80211_scan_cancel()
1257 * driver which can use local->hw_scan_req in ieee80211_scan_cancel()
1259 * - we can not cancel scan_work since driver can schedule it in ieee80211_scan_cancel()
1262 * Hence we only call the cancel_hw_scan() callback, but the low-level in ieee80211_scan_cancel()
1267 mutex_lock(&local->mtx); in ieee80211_scan_cancel()
1268 if (!local->scan_req) in ieee80211_scan_cancel()
1273 * but the worker hasn't run yet or is stuck on the mutex - mark it as in ieee80211_scan_cancel()
1276 if (test_bit(SCAN_HW_SCANNING, &local->scanning) && in ieee80211_scan_cancel()
1277 test_bit(SCAN_COMPLETED, &local->scanning)) { in ieee80211_scan_cancel()
1278 set_bit(SCAN_HW_CANCELLED, &local->scanning); in ieee80211_scan_cancel()
1282 if (test_bit(SCAN_HW_SCANNING, &local->scanning)) { in ieee80211_scan_cancel()
1287 set_bit(SCAN_HW_CANCELLED, &local->scanning); in ieee80211_scan_cancel()
1288 if (local->ops->cancel_hw_scan) in ieee80211_scan_cancel()
1290 rcu_dereference_protected(local->scan_sdata, in ieee80211_scan_cancel()
1291 lockdep_is_held(&local->mtx))); in ieee80211_scan_cancel()
1300 cancel_delayed_work(&local->scan_work); in ieee80211_scan_cancel()
1302 memset(&local->scan_info, 0, sizeof(local->scan_info)); in ieee80211_scan_cancel()
1303 __ieee80211_scan_completed(&local->hw, true); in ieee80211_scan_cancel()
1305 mutex_unlock(&local->mtx); in ieee80211_scan_cancel()
1311 struct ieee80211_local *local = sdata->local; in __ieee80211_request_sched_scan_start()
1320 iebufsz = local->scan_ies_len + req->ie_len; in __ieee80211_request_sched_scan_start()
1322 lockdep_assert_held(&local->mtx); in __ieee80211_request_sched_scan_start()
1324 if (!local->ops->sched_scan_start) in __ieee80211_request_sched_scan_start()
1325 return -ENOTSUPP; in __ieee80211_request_sched_scan_start()
1328 if (local->hw.wiphy->bands[i]) { in __ieee80211_request_sched_scan_start()
1330 rate_masks[i] = (u32) -1; in __ieee80211_request_sched_scan_start()
1335 if (req->flags & NL80211_SCAN_FLAG_MIN_PREQ_CONTENT) in __ieee80211_request_sched_scan_start()
1340 ret = -ENOMEM; in __ieee80211_request_sched_scan_start()
1344 ieee80211_prepare_scan_chandef(&chandef, req->scan_width); in __ieee80211_request_sched_scan_start()
1347 &sched_scan_ies, req->ie, in __ieee80211_request_sched_scan_start()
1348 req->ie_len, bands_used, rate_masks, &chandef, in __ieee80211_request_sched_scan_start()
1353 rcu_assign_pointer(local->sched_scan_sdata, sdata); in __ieee80211_request_sched_scan_start()
1354 rcu_assign_pointer(local->sched_scan_req, req); in __ieee80211_request_sched_scan_start()
1361 /* Clean in case of failure after HW restart or upon resume. */ in __ieee80211_request_sched_scan_start()
1362 RCU_INIT_POINTER(local->sched_scan_sdata, NULL); in __ieee80211_request_sched_scan_start()
1363 RCU_INIT_POINTER(local->sched_scan_req, NULL); in __ieee80211_request_sched_scan_start()
1372 struct ieee80211_local *local = sdata->local; in ieee80211_request_sched_scan_start()
1375 mutex_lock(&local->mtx); in ieee80211_request_sched_scan_start()
1377 if (rcu_access_pointer(local->sched_scan_sdata)) { in ieee80211_request_sched_scan_start()
1378 mutex_unlock(&local->mtx); in ieee80211_request_sched_scan_start()
1379 return -EBUSY; in ieee80211_request_sched_scan_start()
1384 mutex_unlock(&local->mtx); in ieee80211_request_sched_scan_start()
1391 int ret = -ENOENT; in ieee80211_request_sched_scan_stop()
1393 mutex_lock(&local->mtx); in ieee80211_request_sched_scan_stop()
1395 if (!local->ops->sched_scan_stop) { in ieee80211_request_sched_scan_stop()
1396 ret = -ENOTSUPP; in ieee80211_request_sched_scan_stop()
1401 RCU_INIT_POINTER(local->sched_scan_req, NULL); in ieee80211_request_sched_scan_stop()
1403 sched_scan_sdata = rcu_dereference_protected(local->sched_scan_sdata, in ieee80211_request_sched_scan_stop()
1404 lockdep_is_held(&local->mtx)); in ieee80211_request_sched_scan_stop()
1408 RCU_INIT_POINTER(local->sched_scan_sdata, NULL); in ieee80211_request_sched_scan_stop()
1411 mutex_unlock(&local->mtx); in ieee80211_request_sched_scan_stop()
1416 void ieee80211_sched_scan_results(struct ieee80211_hw *hw) in ieee80211_sched_scan_results() argument
1418 struct ieee80211_local *local = hw_to_local(hw); in ieee80211_sched_scan_results()
1422 cfg80211_sched_scan_results(hw->wiphy, 0); in ieee80211_sched_scan_results()
1428 mutex_lock(&local->mtx); in ieee80211_sched_scan_end()
1430 if (!rcu_access_pointer(local->sched_scan_sdata)) { in ieee80211_sched_scan_end()
1431 mutex_unlock(&local->mtx); in ieee80211_sched_scan_end()
1435 RCU_INIT_POINTER(local->sched_scan_sdata, NULL); in ieee80211_sched_scan_end()
1438 RCU_INIT_POINTER(local->sched_scan_req, NULL); in ieee80211_sched_scan_end()
1440 mutex_unlock(&local->mtx); in ieee80211_sched_scan_end()
1442 cfg80211_sched_scan_stopped(local->hw.wiphy, 0); in ieee80211_sched_scan_end()
1454 void ieee80211_sched_scan_stopped(struct ieee80211_hw *hw) in ieee80211_sched_scan_stopped() argument
1456 struct ieee80211_local *local = hw_to_local(hw); in ieee80211_sched_scan_stopped()
1465 if (local->in_reconfig) in ieee80211_sched_scan_stopped()
1468 schedule_work(&local->sched_scan_stopped_work); in ieee80211_sched_scan_stopped()