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Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
[linux-2.6-block.git] / drivers / net / wireless / iwlwifi / iwl-agn-rxon.c
CommitLineData
2295c66b
JB		 1/******************************************************************************
2 *
901069c7 3 * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
2295c66b
JB		 4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of version 2 of the GNU General Public License as
7 * published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
12 * more details.
13 *
14 * You should have received a copy of the GNU General Public License along with
15 * this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
17 *
18 * The full GNU General Public License is included in this distribution in the
19 * file called LICENSE.
20 *
21 * Contact Information:
22 * Intel Linux Wireless <ilw@linux.intel.com>
23 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
24 *
25 *****************************************************************************/
26
27#include "iwl-dev.h"
28#include "iwl-agn.h"
29#include "iwl-sta.h"
30#include "iwl-core.h"
31#include "iwl-agn-calib.h"
68b99311 32#include "iwl-helpers.h"
2295c66b
JB		 33
34static int iwlagn_disable_bss(struct iwl_priv *priv,
35 struct iwl_rxon_context *ctx,
36 struct iwl_rxon_cmd *send)
37{
38 __le32 old_filter = send->filter_flags;
39 int ret;
40
41 send->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
42 ret = iwl_send_cmd_pdu(priv, ctx->rxon_cmd, sizeof(*send), send);
43
44 send->filter_flags = old_filter;
45
46 if (ret)
47 IWL_ERR(priv, "Error clearing ASSOC_MSK on BSS (%d)\n", ret);
48
49 return ret;
50}
51
52static int iwlagn_disable_pan(struct iwl_priv *priv,
53 struct iwl_rxon_context *ctx,
54 struct iwl_rxon_cmd *send)
55{
311dce71 56 struct iwl_notification_wait disable_wait;
2295c66b
JB		 57 __le32 old_filter = send->filter_flags;
58 u8 old_dev_type = send->dev_type;
59 int ret;
60
311dce71
JB		 61 iwlagn_init_notification_wait(priv, &disable_wait, NULL,
62 REPLY_WIPAN_DEACTIVATION_COMPLETE);
63
2295c66b
JB		 64 send->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
65 send->dev_type = RXON_DEV_TYPE_P2P;
66 ret = iwl_send_cmd_pdu(priv, ctx->rxon_cmd, sizeof(*send), send);
67
68 send->filter_flags = old_filter;
69 send->dev_type = old_dev_type;
70
311dce71 71 if (ret) {
2295c66b 72 IWL_ERR(priv, "Error disabling PAN (%d)\n", ret);
311dce71
JB		 73 iwlagn_remove_notification(priv, &disable_wait);
74 } else {
75 signed long wait_res;
2295c66b 76
311dce71 77 wait_res = iwlagn_wait_notification(priv, &disable_wait, HZ);
2a1a78d2 78 if (wait_res == 0) {
311dce71 79 IWL_ERR(priv, "Timed out waiting for PAN disable\n");
2a1a78d2
JB		 80 ret = -EIO;
81 }
311dce71 82 }
2295c66b
JB		 83
84 return ret;
85}
86
f4115d46
SZ		 87static void iwlagn_update_qos(struct iwl_priv *priv,
88 struct iwl_rxon_context *ctx)
89{
90 int ret;
91
92 if (!ctx->is_active)
93 return;
94
95 ctx->qos_data.def_qos_parm.qos_flags = 0;
96
97 if (ctx->qos_data.qos_active)
98 ctx->qos_data.def_qos_parm.qos_flags |=
99 QOS_PARAM_FLG_UPDATE_EDCA_MSK;
100
101 if (ctx->ht.enabled)
102 ctx->qos_data.def_qos_parm.qos_flags |= QOS_PARAM_FLG_TGN_MSK;
103
104 IWL_DEBUG_QOS(priv, "send QoS cmd with Qos active=%d FLAGS=0x%X\n",
105 ctx->qos_data.qos_active,
106 ctx->qos_data.def_qos_parm.qos_flags);
107
108 ret = iwl_send_cmd_pdu(priv, ctx->qos_cmd,
109 sizeof(struct iwl_qosparam_cmd),
110 &ctx->qos_data.def_qos_parm);
111 if (ret)
112 IWL_ERR(priv, "Failed to update QoS\n");
113}
114
bd50a8ab
JB		 115static int iwlagn_update_beacon(struct iwl_priv *priv,
116 struct ieee80211_vif *vif)
117{
118 lockdep_assert_held(&priv->mutex);
119
120 dev_kfree_skb(priv->beacon_skb);
121 priv->beacon_skb = ieee80211_beacon_get(priv->hw, vif);
122 if (!priv->beacon_skb)
123 return -ENOMEM;
124 return iwlagn_send_beacon_cmd(priv);
125}
126
2295c66b
JB		 127/**
128 * iwlagn_commit_rxon - commit staging_rxon to hardware
129 *
130 * The RXON command in staging_rxon is committed to the hardware and
131 * the active_rxon structure is updated with the new data. This
132 * function correctly transitions out of the RXON_ASSOC_MSK state if
133 * a HW tune is required based on the RXON structure changes.
134 */
135int iwlagn_commit_rxon(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
136{
137 /* cast away the const for active_rxon in this function */
138 struct iwl_rxon_cmd *active = (void *)&ctx->active;
2295c66b 139 bool new_assoc = !!(ctx->staging.filter_flags & RXON_FILTER_ASSOC_MSK);
2b5f7a67 140 bool old_assoc = !!(ctx->active.filter_flags & RXON_FILTER_ASSOC_MSK);
2295c66b
JB		 141 int ret;
142
143 lockdep_assert_held(&priv->mutex);
144
adb90a00
WYG		 145 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
146 return -EINVAL;
147
2295c66b
JB		 148 if (!iwl_is_alive(priv))
149 return -EBUSY;
150
151 /* This function hardcodes a bunch of dual-mode assumptions */
152 BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2);
153
154 if (!ctx->is_active)
155 return 0;
156
157 /* always get timestamp with Rx frame */
158 ctx->staging.flags |= RXON_FLG_TSF2HOST_MSK;
159
9b9190d9
JB		 160 if (ctx->ctxid == IWL_RXON_CTX_PAN && priv->_agn.hw_roc_channel) {
161 struct ieee80211_channel *chan = priv->_agn.hw_roc_channel;
162
163 iwl_set_rxon_channel(priv, chan, ctx);
164 iwl_set_flags_for_band(priv, ctx, chan->band, NULL);
165 ctx->staging.filter_flags |=
166 RXON_FILTER_ASSOC_MSK |
167 RXON_FILTER_PROMISC_MSK |
168 RXON_FILTER_CTL2HOST_MSK;
169 ctx->staging.dev_type = RXON_DEV_TYPE_P2P;
170 new_assoc = true;
171
172 if (memcmp(&ctx->staging, &ctx->active,
173 sizeof(ctx->staging)) == 0)
174 return 0;
175 }
176
2295c66b
JB		 177 if ((ctx->vif && ctx->vif->bss_conf.use_short_slot) ||
178 !(ctx->staging.flags & RXON_FLG_BAND_24G_MSK))
179 ctx->staging.flags |= RXON_FLG_SHORT_SLOT_MSK;
180 else
181 ctx->staging.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
182
183 ret = iwl_check_rxon_cmd(priv, ctx);
184 if (ret) {
185 IWL_ERR(priv, "Invalid RXON configuration. Not committing.\n");
186 return -EINVAL;
187 }
188
189 /*
190 * receive commit_rxon request
191 * abort any previous channel switch if still in process
192 */
193 if (priv->switch_rxon.switch_in_progress &&
194 (priv->switch_rxon.channel != ctx->staging.channel)) {
195 IWL_DEBUG_11H(priv, "abort channel switch on %d\n",
196 le16_to_cpu(priv->switch_rxon.channel));
197 iwl_chswitch_done(priv, false);
198 }
199
200 /*
201 * If we don't need to send a full RXON, we can use
202 * iwl_rxon_assoc_cmd which is used to reconfigure filter
203 * and other flags for the current radio configuration.
204 */
205 if (!iwl_full_rxon_required(priv, ctx)) {
206 ret = iwl_send_rxon_assoc(priv, ctx);
207 if (ret) {
208 IWL_ERR(priv, "Error setting RXON_ASSOC (%d)\n", ret);
209 return ret;
210 }
211
212 memcpy(active, &ctx->staging, sizeof(*active));
213 iwl_print_rx_config_cmd(priv, ctx);
214 return 0;
215 }
216
217 if (priv->cfg->ops->hcmd->set_pan_params) {
218 ret = priv->cfg->ops->hcmd->set_pan_params(priv);
219 if (ret)
220 return ret;
221 }
222
223 iwl_set_rxon_hwcrypto(priv, ctx, !priv->cfg->mod_params->sw_crypto);
224
225 IWL_DEBUG_INFO(priv,
226 "Going to commit RXON\n"
227 " * with%s RXON_FILTER_ASSOC_MSK\n"
228 " * channel = %d\n"
229 " * bssid = %pM\n",
230 (new_assoc ? "" : "out"),
231 le16_to_cpu(ctx->staging.channel),
232 ctx->staging.bssid_addr);
233
234 /*
52d980c0
JB		 235 * Always clear associated first, but with the correct config.
236 * This is required as for example station addition for the
237 * AP station must be done after the BSSID is set to correctly
238 * set up filters in the device.
2295c66b 239 */
2b5f7a67
JB		 240 if ((old_assoc && new_assoc) || !new_assoc) {
241 if (ctx->ctxid == IWL_RXON_CTX_BSS)
242 ret = iwlagn_disable_bss(priv, ctx, &ctx->staging);
243 else
244 ret = iwlagn_disable_pan(priv, ctx, &ctx->staging);
245 if (ret)
246 return ret;
2295c66b 247
2b5f7a67 248 memcpy(active, &ctx->staging, sizeof(*active));
2295c66b 249
2b5f7a67
JB		 250 /*
251 * Un-assoc RXON clears the station table and WEP
252 * keys, so we have to restore those afterwards.
253 */
254 iwl_clear_ucode_stations(priv, ctx);
255 iwl_restore_stations(priv, ctx);
256 ret = iwl_restore_default_wep_keys(priv, ctx);
257 if (ret) {
258 IWL_ERR(priv, "Failed to restore WEP keys (%d)\n", ret);
259 return ret;
260 }
2295c66b
JB		 261 }
262
263 /* RXON timing must be before associated RXON */
264 ret = iwl_send_rxon_timing(priv, ctx);
265 if (ret) {
266 IWL_ERR(priv, "Failed to send timing (%d)!\n", ret);
267 return ret;
268 }
269
270 if (new_assoc) {
f4115d46
SZ		 271 /* QoS info may be cleared by previous un-assoc RXON */
272 iwlagn_update_qos(priv, ctx);
273
bd50a8ab
JB		 274 /*
275 * We'll run into this code path when beaconing is
276 * enabled, but then we also need to send the beacon
277 * to the device.
278 */
279 if (ctx->vif && (ctx->vif->type == NL80211_IFTYPE_AP)) {
280 ret = iwlagn_update_beacon(priv, ctx->vif);
281 if (ret) {
282 IWL_ERR(priv,
283 "Error sending required beacon (%d)!\n",
284 ret);
285 return ret;
286 }
2295c66b
JB		 287 }
288
289 priv->start_calib = 0;
290 /*
291 * Apply the new configuration.
292 *
293 * Associated RXON doesn't clear the station table in uCode,
294 * so we don't need to restore stations etc. after this.
295 */
296 ret = iwl_send_cmd_pdu(priv, ctx->rxon_cmd,
297 sizeof(struct iwl_rxon_cmd), &ctx->staging);
298 if (ret) {
299 IWL_ERR(priv, "Error setting new RXON (%d)\n", ret);
300 return ret;
301 }
302 memcpy(active, &ctx->staging, sizeof(*active));
bd50a8ab 303
2b5f7a67
JB		 304 iwl_reprogram_ap_sta(priv, ctx);
305
bd50a8ab
JB		 306 /* IBSS beacon needs to be sent after setting assoc */
307 if (ctx->vif && (ctx->vif->type == NL80211_IFTYPE_ADHOC))
308 if (iwlagn_update_beacon(priv, ctx->vif))
309 IWL_ERR(priv, "Error sending IBSS beacon\n");
2295c66b
JB		 310 }
311
312 iwl_print_rx_config_cmd(priv, ctx);
313
314 iwl_init_sensitivity(priv);
315
316 /*
317 * If we issue a new RXON command which required a tune then we must
318 * send a new TXPOWER command or we won't be able to Tx any frames.
319 *
f844a709 320 * It's expected we set power here if channel is changing.
2295c66b 321 */
f844a709 322 ret = iwl_set_tx_power(priv, priv->tx_power_next, true);
2295c66b
JB		 323 if (ret) {
324 IWL_ERR(priv, "Error sending TX power (%d)\n", ret);
325 return ret;
326 }
327
328 return 0;
329}
330
331int iwlagn_mac_config(struct ieee80211_hw *hw, u32 changed)
332{
333 struct iwl_priv *priv = hw->priv;
334 struct iwl_rxon_context *ctx;
335 struct ieee80211_conf *conf = &hw->conf;
336 struct ieee80211_channel *channel = conf->channel;
337 const struct iwl_channel_info *ch_info;
338 int ret = 0;
339
340 IWL_DEBUG_MAC80211(priv, "changed %#x", changed);
341
342 mutex_lock(&priv->mutex);
343
344 if (unlikely(test_bit(STATUS_SCANNING, &priv->status))) {
345 IWL_DEBUG_MAC80211(priv, "leave - scanning\n");
346 goto out;
347 }
348
349 if (!iwl_is_ready(priv)) {
350 IWL_DEBUG_MAC80211(priv, "leave - not ready\n");
351 goto out;
352 }
353
354 if (changed & (IEEE80211_CONF_CHANGE_SMPS |
355 IEEE80211_CONF_CHANGE_CHANNEL)) {
356 /* mac80211 uses static for non-HT which is what we want */
357 priv->current_ht_config.smps = conf->smps_mode;
358
359 /*
360 * Recalculate chain counts.
361 *
362 * If monitor mode is enabled then mac80211 will
363 * set up the SM PS mode to OFF if an HT channel is
364 * configured.
365 */
366 if (priv->cfg->ops->hcmd->set_rxon_chain)
367 for_each_context(priv, ctx)
368 priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx);
369 }
370
371 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
372 unsigned long flags;
373
374 ch_info = iwl_get_channel_info(priv, channel->band,
375 channel->hw_value);
376 if (!is_channel_valid(ch_info)) {
377 IWL_DEBUG_MAC80211(priv, "leave - invalid channel\n");
378 ret = -EINVAL;
379 goto out;
380 }
381
382 spin_lock_irqsave(&priv->lock, flags);
383
384 for_each_context(priv, ctx) {
385 /* Configure HT40 channels */
7caa2316 386 if (ctx->ht.enabled != conf_is_ht(conf))
35a6eb36 387 ctx->ht.enabled = conf_is_ht(conf);
35a6eb36 388
2295c66b
JB		 389 if (ctx->ht.enabled) {
390 if (conf_is_ht40_minus(conf)) {
391 ctx->ht.extension_chan_offset =
392 IEEE80211_HT_PARAM_CHA_SEC_BELOW;
393 ctx->ht.is_40mhz = true;
394 } else if (conf_is_ht40_plus(conf)) {
395 ctx->ht.extension_chan_offset =
396 IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
397 ctx->ht.is_40mhz = true;
398 } else {
399 ctx->ht.extension_chan_offset =
400 IEEE80211_HT_PARAM_CHA_SEC_NONE;
401 ctx->ht.is_40mhz = false;
402 }
403 } else
404 ctx->ht.is_40mhz = false;
405
406 /*
407 * Default to no protection. Protection mode will
408 * later be set from BSS config in iwl_ht_conf
409 */
410 ctx->ht.protection = IEEE80211_HT_OP_MODE_PROTECTION_NONE;
411
412 /* if we are switching from ht to 2.4 clear flags
413 * from any ht related info since 2.4 does not
414 * support ht */
415 if (le16_to_cpu(ctx->staging.channel) !=
416 channel->hw_value)
417 ctx->staging.flags = 0;
418
419 iwl_set_rxon_channel(priv, channel, ctx);
420 iwl_set_rxon_ht(priv, &priv->current_ht_config);
421
422 iwl_set_flags_for_band(priv, ctx, channel->band,
423 ctx->vif);
424 }
425
426 spin_unlock_irqrestore(&priv->lock, flags);
427
428 iwl_update_bcast_stations(priv);
429
430 /*
431 * The list of supported rates and rate mask can be different
432 * for each band; since the band may have changed, reset
433 * the rate mask to what mac80211 lists.
434 */
435 iwl_set_rate(priv);
436 }
437
438 if (changed & (IEEE80211_CONF_CHANGE_PS |
439 IEEE80211_CONF_CHANGE_IDLE)) {
440 ret = iwl_power_update_mode(priv, false);
441 if (ret)
442 IWL_DEBUG_MAC80211(priv, "Error setting sleep level\n");
443 }
444
445 if (changed & IEEE80211_CONF_CHANGE_POWER) {
446 IWL_DEBUG_MAC80211(priv, "TX Power old=%d new=%d\n",
447 priv->tx_power_user_lmt, conf->power_level);
448
449 iwl_set_tx_power(priv, conf->power_level, false);
450 }
451
452 for_each_context(priv, ctx) {
453 if (!memcmp(&ctx->staging, &ctx->active, sizeof(ctx->staging)))
454 continue;
455 iwlagn_commit_rxon(priv, ctx);
456 }
457 out:
458 mutex_unlock(&priv->mutex);
459 return ret;
460}
461
2295c66b
JB		 462static void iwlagn_check_needed_chains(struct iwl_priv *priv,
463 struct iwl_rxon_context *ctx,
464 struct ieee80211_bss_conf *bss_conf)
465{
466 struct ieee80211_vif *vif = ctx->vif;
467 struct iwl_rxon_context *tmp;
468 struct ieee80211_sta *sta;
469 struct iwl_ht_config *ht_conf = &priv->current_ht_config;
850bedcc 470 struct ieee80211_sta_ht_cap *ht_cap;
2295c66b
JB		 471 bool need_multiple;
472
473 lockdep_assert_held(&priv->mutex);
474
475 switch (vif->type) {
476 case NL80211_IFTYPE_STATION:
477 rcu_read_lock();
478 sta = ieee80211_find_sta(vif, bss_conf->bssid);
850bedcc 479 if (!sta) {
2295c66b
JB		 480 /*
481 * If at all, this can only happen through a race
482 * when the AP disconnects us while we're still
483 * setting up the connection, in that case mac80211
484 * will soon tell us about that.
485 */
486 need_multiple = false;
850bedcc
JB		 487 rcu_read_unlock();
488 break;
489 }
490
491 ht_cap = &sta->ht_cap;
492
493 need_multiple = true;
494
495 /*
496 * If the peer advertises no support for receiving 2 and 3
497 * stream MCS rates, it can't be transmitting them either.
498 */
499 if (ht_cap->mcs.rx_mask[1] == 0 &&
500 ht_cap->mcs.rx_mask[2] == 0) {
501 need_multiple = false;
502 } else if (!(ht_cap->mcs.tx_params &
503 IEEE80211_HT_MCS_TX_DEFINED)) {
504 /* If it can't TX MCS at all ... */
505 need_multiple = false;
506 } else if (ht_cap->mcs.tx_params &
507 IEEE80211_HT_MCS_TX_RX_DIFF) {
508 int maxstreams;
509
510 /*
511 * But if it can receive them, it might still not
512 * be able to transmit them, which is what we need
513 * to check here -- so check the number of streams
514 * it advertises for TX (if different from RX).
515 */
516
517 maxstreams = (ht_cap->mcs.tx_params &
518 IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK);
519 maxstreams >>=
520 IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT;
521 maxstreams += 1;
522
523 if (maxstreams <= 1)
524 need_multiple = false;
2295c66b 525 }
850bedcc 526
2295c66b
JB		 527 rcu_read_unlock();
528 break;
529 case NL80211_IFTYPE_ADHOC:
530 /* currently */
531 need_multiple = false;
532 break;
533 default:
534 /* only AP really */
535 need_multiple = true;
536 break;
537 }
538
539 ctx->ht_need_multiple_chains = need_multiple;
540
541 if (!need_multiple) {
542 /* check all contexts */
543 for_each_context(priv, tmp) {
544 if (!tmp->vif)
545 continue;
546 if (tmp->ht_need_multiple_chains) {
547 need_multiple = true;
548 break;
549 }
550 }
551 }
552
553 ht_conf->single_chain_sufficient = !need_multiple;
554}
555
556void iwlagn_bss_info_changed(struct ieee80211_hw *hw,
557 struct ieee80211_vif *vif,
558 struct ieee80211_bss_conf *bss_conf,
559 u32 changes)
560{
561 struct iwl_priv *priv = hw->priv;
562 struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif);
563 int ret;
564 bool force = false;
565
566 mutex_lock(&priv->mutex);
567
ae0b693c 568 if (unlikely(!iwl_is_ready(priv))) {
14a085e7
WYG		 569 IWL_DEBUG_MAC80211(priv, "leave - not ready\n");
570 mutex_unlock(&priv->mutex);
ae0b693c
SZ		 571 return;
572 }
573
574 if (unlikely(!ctx->vif)) {
575 IWL_DEBUG_MAC80211(priv, "leave - vif is NULL\n");
893654de
JB		 576 mutex_unlock(&priv->mutex);
577 return;
578 }
579
2295c66b
JB		 580 if (changes & BSS_CHANGED_BEACON_INT)
581 force = true;
582
583 if (changes & BSS_CHANGED_QOS) {
584 ctx->qos_data.qos_active = bss_conf->qos;
585 iwlagn_update_qos(priv, ctx);
586 }
587
588 ctx->staging.assoc_id = cpu_to_le16(vif->bss_conf.aid);
589 if (vif->bss_conf.use_short_preamble)
590 ctx->staging.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
591 else
592 ctx->staging.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
593
594 if (changes & BSS_CHANGED_ASSOC) {
595 if (bss_conf->assoc) {
2295c66b
JB		 596 priv->timestamp = bss_conf->timestamp;
597 ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK;
598 } else {
68b99311
GT		 599 /*
600 * If we disassociate while there are pending
601 * frames, just wake up the queues and let the
602 * frames "escape" ... This shouldn't really
603 * be happening to start with, but we should
604 * not get stuck in this case either since it
605 * can happen if userspace gets confused.
606 */
607 if (ctx->last_tx_rejected) {
608 ctx->last_tx_rejected = false;
609 iwl_wake_any_queue(priv, ctx);
610 }
2295c66b 611 ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
2295c66b
JB		 612 }
613 }
614
615 if (ctx->ht.enabled) {
616 ctx->ht.protection = bss_conf->ht_operation_mode &
617 IEEE80211_HT_OP_MODE_PROTECTION;
618 ctx->ht.non_gf_sta_present = !!(bss_conf->ht_operation_mode &
619 IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT);
620 iwlagn_check_needed_chains(priv, ctx, bss_conf);
b2769b84 621 iwl_set_rxon_ht(priv, &priv->current_ht_config);
2295c66b
JB		 622 }
623
624 if (priv->cfg->ops->hcmd->set_rxon_chain)
625 priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx);
626
627 if (bss_conf->use_cts_prot && (priv->band != IEEE80211_BAND_5GHZ))
628 ctx->staging.flags |= RXON_FLG_TGG_PROTECT_MSK;
629 else
630 ctx->staging.flags &= ~RXON_FLG_TGG_PROTECT_MSK;
631
632 if (bss_conf->use_cts_prot)
633 ctx->staging.flags |= RXON_FLG_SELF_CTS_EN;
634 else
635 ctx->staging.flags &= ~RXON_FLG_SELF_CTS_EN;
636
637 memcpy(ctx->staging.bssid_addr, bss_conf->bssid, ETH_ALEN);
638
639 if (vif->type == NL80211_IFTYPE_AP ||
640 vif->type == NL80211_IFTYPE_ADHOC) {
641 if (vif->bss_conf.enable_beacon) {
642 ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK;
643 priv->beacon_ctx = ctx;
644 } else {
645 ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
646 priv->beacon_ctx = NULL;
647 }
648 }
649
650 if (force || memcmp(&ctx->staging, &ctx->active, sizeof(ctx->staging)))
651 iwlagn_commit_rxon(priv, ctx);
652
8da8e628
JB		 653 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc) {
654 /*
655 * The chain noise calibration will enable PM upon
656 * completion. If calibration has already been run
657 * then we need to enable power management here.
658 */
659 if (priv->chain_noise_data.state == IWL_CHAIN_NOISE_DONE)
660 iwl_power_update_mode(priv, false);
661
662 /* Enable RX differential gain and sensitivity calibrations */
663 iwl_chain_noise_reset(priv);
664 priv->start_calib = 1;
665 }
666
2295c66b
JB		 667 if (changes & BSS_CHANGED_IBSS) {
668 ret = iwlagn_manage_ibss_station(priv, vif,
669 bss_conf->ibss_joined);
670 if (ret)
671 IWL_ERR(priv, "failed to %s IBSS station %pM\n",
672 bss_conf->ibss_joined ? "add" : "remove",
673 bss_conf->bssid);
674 }
675
bd50a8ab
JB		 676 if (changes & BSS_CHANGED_BEACON && vif->type == NL80211_IFTYPE_ADHOC &&
677 priv->beacon_ctx) {
678 if (iwlagn_update_beacon(priv, vif))
679 IWL_ERR(priv, "Error sending IBSS beacon\n");
680 }
681
2295c66b
JB		 682 mutex_unlock(&priv->mutex);
683}
ae79d23d
JB		 684
685void iwlagn_post_scan(struct iwl_priv *priv)
686{
687 struct iwl_rxon_context *ctx;
688
689 /*
690 * Since setting the RXON may have been deferred while
691 * performing the scan, fire one off if needed
692 */
693 for_each_context(priv, ctx)
694 if (memcmp(&ctx->staging, &ctx->active, sizeof(ctx->staging)))
695 iwlagn_commit_rxon(priv, ctx);
696
697 if (priv->cfg->ops->hcmd->set_pan_params)
698 priv->cfg->ops->hcmd->set_pan_params(priv);
699}
Linux 6.x block layer and io_uring tree(s)