1 /******************************************************************************
3 * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
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.
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
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
18 * The full GNU General Public License is included in this distribution in the
19 * file called LICENSE.
21 * Contact Information:
22 * Intel Linux Wireless <ilw@linux.intel.com>
23 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
25 *****************************************************************************/
31 #include "iwl-agn-calib.h"
32 #include "iwl-helpers.h"
33 #include "iwl-trans.h"
35 static int iwlagn_disable_bss(struct iwl_priv *priv,
36 struct iwl_rxon_context *ctx,
37 struct iwl_rxon_cmd *send)
39 __le32 old_filter = send->filter_flags;
42 send->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
43 ret = trans_send_cmd_pdu(priv, ctx->rxon_cmd,
44 CMD_SYNC, sizeof(*send), send);
46 send->filter_flags = old_filter;
49 IWL_ERR(priv, "Error clearing ASSOC_MSK on BSS (%d)\n", ret);
54 static int iwlagn_disable_pan(struct iwl_priv *priv,
55 struct iwl_rxon_context *ctx,
56 struct iwl_rxon_cmd *send)
58 struct iwl_notification_wait disable_wait;
59 __le32 old_filter = send->filter_flags;
60 u8 old_dev_type = send->dev_type;
63 iwlagn_init_notification_wait(priv, &disable_wait,
64 REPLY_WIPAN_DEACTIVATION_COMPLETE,
67 send->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
68 send->dev_type = RXON_DEV_TYPE_P2P;
69 ret = trans_send_cmd_pdu(priv, ctx->rxon_cmd,
70 CMD_SYNC, sizeof(*send), send);
72 send->filter_flags = old_filter;
73 send->dev_type = old_dev_type;
76 IWL_ERR(priv, "Error disabling PAN (%d)\n", ret);
77 iwlagn_remove_notification(priv, &disable_wait);
79 ret = iwlagn_wait_notification(priv, &disable_wait, HZ);
81 IWL_ERR(priv, "Timed out waiting for PAN disable\n");
87 static int iwlagn_disconn_pan(struct iwl_priv *priv,
88 struct iwl_rxon_context *ctx,
89 struct iwl_rxon_cmd *send)
91 __le32 old_filter = send->filter_flags;
94 send->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
95 ret = trans_send_cmd_pdu(priv, ctx->rxon_cmd, CMD_SYNC,
98 send->filter_flags = old_filter;
103 static void iwlagn_update_qos(struct iwl_priv *priv,
104 struct iwl_rxon_context *ctx)
111 ctx->qos_data.def_qos_parm.qos_flags = 0;
113 if (ctx->qos_data.qos_active)
114 ctx->qos_data.def_qos_parm.qos_flags |=
115 QOS_PARAM_FLG_UPDATE_EDCA_MSK;
118 ctx->qos_data.def_qos_parm.qos_flags |= QOS_PARAM_FLG_TGN_MSK;
120 IWL_DEBUG_QOS(priv, "send QoS cmd with Qos active=%d FLAGS=0x%X\n",
121 ctx->qos_data.qos_active,
122 ctx->qos_data.def_qos_parm.qos_flags);
124 ret = trans_send_cmd_pdu(priv, ctx->qos_cmd, CMD_SYNC,
125 sizeof(struct iwl_qosparam_cmd),
126 &ctx->qos_data.def_qos_parm);
128 IWL_ERR(priv, "Failed to update QoS\n");
131 static int iwlagn_update_beacon(struct iwl_priv *priv,
132 struct ieee80211_vif *vif)
134 lockdep_assert_held(&priv->mutex);
136 dev_kfree_skb(priv->beacon_skb);
137 priv->beacon_skb = ieee80211_beacon_get(priv->hw, vif);
138 if (!priv->beacon_skb)
140 return iwlagn_send_beacon_cmd(priv);
143 static int iwlagn_send_rxon_assoc(struct iwl_priv *priv,
144 struct iwl_rxon_context *ctx)
147 struct iwl_rxon_assoc_cmd rxon_assoc;
148 const struct iwl_rxon_cmd *rxon1 = &ctx->staging;
149 const struct iwl_rxon_cmd *rxon2 = &ctx->active;
151 if ((rxon1->flags == rxon2->flags) &&
152 (rxon1->filter_flags == rxon2->filter_flags) &&
153 (rxon1->cck_basic_rates == rxon2->cck_basic_rates) &&
154 (rxon1->ofdm_ht_single_stream_basic_rates ==
155 rxon2->ofdm_ht_single_stream_basic_rates) &&
156 (rxon1->ofdm_ht_dual_stream_basic_rates ==
157 rxon2->ofdm_ht_dual_stream_basic_rates) &&
158 (rxon1->ofdm_ht_triple_stream_basic_rates ==
159 rxon2->ofdm_ht_triple_stream_basic_rates) &&
160 (rxon1->acquisition_data == rxon2->acquisition_data) &&
161 (rxon1->rx_chain == rxon2->rx_chain) &&
162 (rxon1->ofdm_basic_rates == rxon2->ofdm_basic_rates)) {
163 IWL_DEBUG_INFO(priv, "Using current RXON_ASSOC. Not resending.\n");
167 rxon_assoc.flags = ctx->staging.flags;
168 rxon_assoc.filter_flags = ctx->staging.filter_flags;
169 rxon_assoc.ofdm_basic_rates = ctx->staging.ofdm_basic_rates;
170 rxon_assoc.cck_basic_rates = ctx->staging.cck_basic_rates;
171 rxon_assoc.reserved1 = 0;
172 rxon_assoc.reserved2 = 0;
173 rxon_assoc.reserved3 = 0;
174 rxon_assoc.ofdm_ht_single_stream_basic_rates =
175 ctx->staging.ofdm_ht_single_stream_basic_rates;
176 rxon_assoc.ofdm_ht_dual_stream_basic_rates =
177 ctx->staging.ofdm_ht_dual_stream_basic_rates;
178 rxon_assoc.rx_chain_select_flags = ctx->staging.rx_chain;
179 rxon_assoc.ofdm_ht_triple_stream_basic_rates =
180 ctx->staging.ofdm_ht_triple_stream_basic_rates;
181 rxon_assoc.acquisition_data = ctx->staging.acquisition_data;
183 ret = trans_send_cmd_pdu(priv, ctx->rxon_assoc_cmd,
184 CMD_ASYNC, sizeof(rxon_assoc), &rxon_assoc);
188 static int iwlagn_rxon_disconn(struct iwl_priv *priv,
189 struct iwl_rxon_context *ctx)
192 struct iwl_rxon_cmd *active = (void *)&ctx->active;
194 if (ctx->ctxid == IWL_RXON_CTX_BSS) {
195 ret = iwlagn_disable_bss(priv, ctx, &ctx->staging);
197 ret = iwlagn_disable_pan(priv, ctx, &ctx->staging);
201 ret = iwl_send_rxon_timing(priv, ctx);
203 IWL_ERR(priv, "Failed to send timing (%d)!\n", ret);
206 ret = iwlagn_disconn_pan(priv, ctx, &ctx->staging);
213 * Un-assoc RXON clears the station table and WEP
214 * keys, so we have to restore those afterwards.
216 iwl_clear_ucode_stations(priv, ctx);
217 /* update -- might need P2P now */
218 iwl_update_bcast_station(priv, ctx);
219 iwl_restore_stations(priv, ctx);
220 ret = iwl_restore_default_wep_keys(priv, ctx);
222 IWL_ERR(priv, "Failed to restore WEP keys (%d)\n", ret);
226 memcpy(active, &ctx->staging, sizeof(*active));
230 static int iwlagn_rxon_connect(struct iwl_priv *priv,
231 struct iwl_rxon_context *ctx)
234 struct iwl_rxon_cmd *active = (void *)&ctx->active;
236 /* RXON timing must be before associated RXON */
237 if (ctx->ctxid == IWL_RXON_CTX_BSS) {
238 ret = iwl_send_rxon_timing(priv, ctx);
240 IWL_ERR(priv, "Failed to send timing (%d)!\n", ret);
244 /* QoS info may be cleared by previous un-assoc RXON */
245 iwlagn_update_qos(priv, ctx);
248 * We'll run into this code path when beaconing is
249 * enabled, but then we also need to send the beacon
252 if (ctx->vif && (ctx->vif->type == NL80211_IFTYPE_AP)) {
253 ret = iwlagn_update_beacon(priv, ctx->vif);
256 "Error sending required beacon (%d)!\n",
262 priv->start_calib = 0;
264 * Apply the new configuration.
266 * Associated RXON doesn't clear the station table in uCode,
267 * so we don't need to restore stations etc. after this.
269 ret = trans_send_cmd_pdu(priv, ctx->rxon_cmd, CMD_SYNC,
270 sizeof(struct iwl_rxon_cmd), &ctx->staging);
272 IWL_ERR(priv, "Error setting new RXON (%d)\n", ret);
275 memcpy(active, &ctx->staging, sizeof(*active));
277 iwl_reprogram_ap_sta(priv, ctx);
279 /* IBSS beacon needs to be sent after setting assoc */
280 if (ctx->vif && (ctx->vif->type == NL80211_IFTYPE_ADHOC))
281 if (iwlagn_update_beacon(priv, ctx->vif))
282 IWL_ERR(priv, "Error sending IBSS beacon\n");
283 iwl_init_sensitivity(priv);
286 * If we issue a new RXON command which required a tune then
287 * we must send a new TXPOWER command or we won't be able to
290 * It's expected we set power here if channel is changing.
292 ret = iwl_set_tx_power(priv, priv->tx_power_next, true);
294 IWL_ERR(priv, "Error sending TX power (%d)\n", ret);
298 if ((ctx->vif && ctx->vif->type == NL80211_IFTYPE_STATION) &&
299 priv->cfg->ht_params->smps_mode)
300 ieee80211_request_smps(ctx->vif,
301 priv->cfg->ht_params->smps_mode);
307 * iwlagn_commit_rxon - commit staging_rxon to hardware
309 * The RXON command in staging_rxon is committed to the hardware and
310 * the active_rxon structure is updated with the new data. This
311 * function correctly transitions out of the RXON_ASSOC_MSK state if
312 * a HW tune is required based on the RXON structure changes.
314 * The connect/disconnect flow should be as the following:
316 * 1. make sure send RXON command with association bit unset if not connect
317 * this should include the channel and the band for the candidate
319 * 2. Add Station before RXON association with the AP
320 * 3. RXON_timing has to send before RXON for connection
321 * 4. full RXON command - associated bit set
322 * 5. use RXON_ASSOC command to update any flags changes
324 int iwlagn_commit_rxon(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
326 /* cast away the const for active_rxon in this function */
327 struct iwl_rxon_cmd *active = (void *)&ctx->active;
328 bool new_assoc = !!(ctx->staging.filter_flags & RXON_FILTER_ASSOC_MSK);
331 lockdep_assert_held(&priv->mutex);
333 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
336 if (!iwl_is_alive(priv))
339 /* This function hardcodes a bunch of dual-mode assumptions */
340 BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2);
345 /* always get timestamp with Rx frame */
346 ctx->staging.flags |= RXON_FLG_TSF2HOST_MSK;
348 if (ctx->ctxid == IWL_RXON_CTX_PAN && priv->_agn.hw_roc_channel) {
349 struct ieee80211_channel *chan = priv->_agn.hw_roc_channel;
351 iwl_set_rxon_channel(priv, chan, ctx);
352 iwl_set_flags_for_band(priv, ctx, chan->band, NULL);
353 ctx->staging.filter_flags |=
354 RXON_FILTER_ASSOC_MSK |
355 RXON_FILTER_PROMISC_MSK |
356 RXON_FILTER_CTL2HOST_MSK;
357 ctx->staging.dev_type = RXON_DEV_TYPE_P2P;
360 if (memcmp(&ctx->staging, &ctx->active,
361 sizeof(ctx->staging)) == 0)
366 * force CTS-to-self frames protection if RTS-CTS is not preferred
367 * one aggregation protection method
369 if (!(priv->cfg->ht_params &&
370 priv->cfg->ht_params->use_rts_for_aggregation))
371 ctx->staging.flags |= RXON_FLG_SELF_CTS_EN;
373 if ((ctx->vif && ctx->vif->bss_conf.use_short_slot) ||
374 !(ctx->staging.flags & RXON_FLG_BAND_24G_MSK))
375 ctx->staging.flags |= RXON_FLG_SHORT_SLOT_MSK;
377 ctx->staging.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
379 iwl_print_rx_config_cmd(priv, ctx);
380 ret = iwl_check_rxon_cmd(priv, ctx);
382 IWL_ERR(priv, "Invalid RXON configuration. Not committing.\n");
387 * receive commit_rxon request
388 * abort any previous channel switch if still in process
390 if (test_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status) &&
391 (priv->switch_channel != ctx->staging.channel)) {
392 IWL_DEBUG_11H(priv, "abort channel switch on %d\n",
393 le16_to_cpu(priv->switch_channel));
394 iwl_chswitch_done(priv, false);
398 * If we don't need to send a full RXON, we can use
399 * iwl_rxon_assoc_cmd which is used to reconfigure filter
400 * and other flags for the current radio configuration.
402 if (!iwl_full_rxon_required(priv, ctx)) {
403 ret = iwlagn_send_rxon_assoc(priv, ctx);
405 IWL_ERR(priv, "Error setting RXON_ASSOC (%d)\n", ret);
409 memcpy(active, &ctx->staging, sizeof(*active));
411 * We do not commit tx power settings while channel changing,
412 * do it now if after settings changed.
414 iwl_set_tx_power(priv, priv->tx_power_next, false);
416 /* make sure we are in the right PS state */
417 iwl_power_update_mode(priv, true);
422 iwl_set_rxon_hwcrypto(priv, ctx, !iwlagn_mod_params.sw_crypto);
425 "Going to commit RXON\n"
426 " * with%s RXON_FILTER_ASSOC_MSK\n"
429 (new_assoc ? "" : "out"),
430 le16_to_cpu(ctx->staging.channel),
431 ctx->staging.bssid_addr);
434 * Always clear associated first, but with the correct config.
435 * This is required as for example station addition for the
436 * AP station must be done after the BSSID is set to correctly
437 * set up filters in the device.
439 ret = iwlagn_rxon_disconn(priv, ctx);
443 ret = iwlagn_set_pan_params(priv);
448 return iwlagn_rxon_connect(priv, ctx);
453 int iwlagn_mac_config(struct ieee80211_hw *hw, u32 changed)
455 struct iwl_priv *priv = hw->priv;
456 struct iwl_rxon_context *ctx;
457 struct ieee80211_conf *conf = &hw->conf;
458 struct ieee80211_channel *channel = conf->channel;
459 const struct iwl_channel_info *ch_info;
462 IWL_DEBUG_MAC80211(priv, "changed %#x", changed);
464 mutex_lock(&priv->mutex);
466 if (unlikely(test_bit(STATUS_SCANNING, &priv->status))) {
467 IWL_DEBUG_MAC80211(priv, "leave - scanning\n");
471 if (!iwl_is_ready(priv)) {
472 IWL_DEBUG_MAC80211(priv, "leave - not ready\n");
476 if (changed & (IEEE80211_CONF_CHANGE_SMPS |
477 IEEE80211_CONF_CHANGE_CHANNEL)) {
478 /* mac80211 uses static for non-HT which is what we want */
479 priv->current_ht_config.smps = conf->smps_mode;
482 * Recalculate chain counts.
484 * If monitor mode is enabled then mac80211 will
485 * set up the SM PS mode to OFF if an HT channel is
488 for_each_context(priv, ctx)
489 iwlagn_set_rxon_chain(priv, ctx);
492 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
495 ch_info = iwl_get_channel_info(priv, channel->band,
497 if (!is_channel_valid(ch_info)) {
498 IWL_DEBUG_MAC80211(priv, "leave - invalid channel\n");
503 spin_lock_irqsave(&priv->lock, flags);
505 for_each_context(priv, ctx) {
506 /* Configure HT40 channels */
507 if (ctx->ht.enabled != conf_is_ht(conf))
508 ctx->ht.enabled = conf_is_ht(conf);
510 if (ctx->ht.enabled) {
511 if (conf_is_ht40_minus(conf)) {
512 ctx->ht.extension_chan_offset =
513 IEEE80211_HT_PARAM_CHA_SEC_BELOW;
514 ctx->ht.is_40mhz = true;
515 } else if (conf_is_ht40_plus(conf)) {
516 ctx->ht.extension_chan_offset =
517 IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
518 ctx->ht.is_40mhz = true;
520 ctx->ht.extension_chan_offset =
521 IEEE80211_HT_PARAM_CHA_SEC_NONE;
522 ctx->ht.is_40mhz = false;
525 ctx->ht.is_40mhz = false;
528 * Default to no protection. Protection mode will
529 * later be set from BSS config in iwl_ht_conf
531 ctx->ht.protection = IEEE80211_HT_OP_MODE_PROTECTION_NONE;
533 /* if we are switching from ht to 2.4 clear flags
534 * from any ht related info since 2.4 does not
536 if (le16_to_cpu(ctx->staging.channel) !=
538 ctx->staging.flags = 0;
540 iwl_set_rxon_channel(priv, channel, ctx);
541 iwl_set_rxon_ht(priv, &priv->current_ht_config);
543 iwl_set_flags_for_band(priv, ctx, channel->band,
547 spin_unlock_irqrestore(&priv->lock, flags);
549 iwl_update_bcast_stations(priv);
552 * The list of supported rates and rate mask can be different
553 * for each band; since the band may have changed, reset
554 * the rate mask to what mac80211 lists.
559 if (changed & (IEEE80211_CONF_CHANGE_PS |
560 IEEE80211_CONF_CHANGE_IDLE)) {
561 ret = iwl_power_update_mode(priv, false);
563 IWL_DEBUG_MAC80211(priv, "Error setting sleep level\n");
566 if (changed & IEEE80211_CONF_CHANGE_POWER) {
567 IWL_DEBUG_MAC80211(priv, "TX Power old=%d new=%d\n",
568 priv->tx_power_user_lmt, conf->power_level);
570 iwl_set_tx_power(priv, conf->power_level, false);
573 for_each_context(priv, ctx) {
574 if (!memcmp(&ctx->staging, &ctx->active, sizeof(ctx->staging)))
576 iwlagn_commit_rxon(priv, ctx);
579 mutex_unlock(&priv->mutex);
583 static void iwlagn_check_needed_chains(struct iwl_priv *priv,
584 struct iwl_rxon_context *ctx,
585 struct ieee80211_bss_conf *bss_conf)
587 struct ieee80211_vif *vif = ctx->vif;
588 struct iwl_rxon_context *tmp;
589 struct ieee80211_sta *sta;
590 struct iwl_ht_config *ht_conf = &priv->current_ht_config;
591 struct ieee80211_sta_ht_cap *ht_cap;
594 lockdep_assert_held(&priv->mutex);
597 case NL80211_IFTYPE_STATION:
599 sta = ieee80211_find_sta(vif, bss_conf->bssid);
602 * If at all, this can only happen through a race
603 * when the AP disconnects us while we're still
604 * setting up the connection, in that case mac80211
605 * will soon tell us about that.
607 need_multiple = false;
612 ht_cap = &sta->ht_cap;
614 need_multiple = true;
617 * If the peer advertises no support for receiving 2 and 3
618 * stream MCS rates, it can't be transmitting them either.
620 if (ht_cap->mcs.rx_mask[1] == 0 &&
621 ht_cap->mcs.rx_mask[2] == 0) {
622 need_multiple = false;
623 } else if (!(ht_cap->mcs.tx_params &
624 IEEE80211_HT_MCS_TX_DEFINED)) {
625 /* If it can't TX MCS at all ... */
626 need_multiple = false;
627 } else if (ht_cap->mcs.tx_params &
628 IEEE80211_HT_MCS_TX_RX_DIFF) {
632 * But if it can receive them, it might still not
633 * be able to transmit them, which is what we need
634 * to check here -- so check the number of streams
635 * it advertises for TX (if different from RX).
638 maxstreams = (ht_cap->mcs.tx_params &
639 IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK);
641 IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT;
645 need_multiple = false;
650 case NL80211_IFTYPE_ADHOC:
652 need_multiple = false;
656 need_multiple = true;
660 ctx->ht_need_multiple_chains = need_multiple;
662 if (!need_multiple) {
663 /* check all contexts */
664 for_each_context(priv, tmp) {
667 if (tmp->ht_need_multiple_chains) {
668 need_multiple = true;
674 ht_conf->single_chain_sufficient = !need_multiple;
677 static void iwlagn_chain_noise_reset(struct iwl_priv *priv)
679 struct iwl_chain_noise_data *data = &priv->chain_noise_data;
682 if ((data->state == IWL_CHAIN_NOISE_ALIVE) &&
683 iwl_is_any_associated(priv)) {
684 struct iwl_calib_chain_noise_reset_cmd cmd;
686 /* clear data for chain noise calibration algorithm */
687 data->chain_noise_a = 0;
688 data->chain_noise_b = 0;
689 data->chain_noise_c = 0;
690 data->chain_signal_a = 0;
691 data->chain_signal_b = 0;
692 data->chain_signal_c = 0;
693 data->beacon_count = 0;
695 memset(&cmd, 0, sizeof(cmd));
696 iwl_set_calib_hdr(&cmd.hdr,
697 priv->_agn.phy_calib_chain_noise_reset_cmd);
698 ret = trans_send_cmd_pdu(priv,
699 REPLY_PHY_CALIBRATION_CMD,
700 CMD_SYNC, sizeof(cmd), &cmd);
703 "Could not send REPLY_PHY_CALIBRATION_CMD\n");
704 data->state = IWL_CHAIN_NOISE_ACCUMULATE;
705 IWL_DEBUG_CALIB(priv, "Run chain_noise_calibrate\n");
709 void iwlagn_bss_info_changed(struct ieee80211_hw *hw,
710 struct ieee80211_vif *vif,
711 struct ieee80211_bss_conf *bss_conf,
714 struct iwl_priv *priv = hw->priv;
715 struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif);
719 mutex_lock(&priv->mutex);
721 if (unlikely(!iwl_is_ready(priv))) {
722 IWL_DEBUG_MAC80211(priv, "leave - not ready\n");
723 mutex_unlock(&priv->mutex);
727 if (unlikely(!ctx->vif)) {
728 IWL_DEBUG_MAC80211(priv, "leave - vif is NULL\n");
729 mutex_unlock(&priv->mutex);
733 if (changes & BSS_CHANGED_BEACON_INT)
736 if (changes & BSS_CHANGED_QOS) {
737 ctx->qos_data.qos_active = bss_conf->qos;
738 iwlagn_update_qos(priv, ctx);
741 ctx->staging.assoc_id = cpu_to_le16(vif->bss_conf.aid);
742 if (vif->bss_conf.use_short_preamble)
743 ctx->staging.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
745 ctx->staging.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
747 if (changes & BSS_CHANGED_ASSOC) {
748 if (bss_conf->assoc) {
749 priv->timestamp = bss_conf->timestamp;
750 ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK;
753 * If we disassociate while there are pending
754 * frames, just wake up the queues and let the
755 * frames "escape" ... This shouldn't really
756 * be happening to start with, but we should
757 * not get stuck in this case either since it
758 * can happen if userspace gets confused.
760 if (ctx->last_tx_rejected) {
761 ctx->last_tx_rejected = false;
762 iwl_wake_any_queue(priv, ctx);
764 ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
767 iwlagn_bt_coex_rssi_monitor(priv);
770 if (ctx->ht.enabled) {
771 ctx->ht.protection = bss_conf->ht_operation_mode &
772 IEEE80211_HT_OP_MODE_PROTECTION;
773 ctx->ht.non_gf_sta_present = !!(bss_conf->ht_operation_mode &
774 IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT);
775 iwlagn_check_needed_chains(priv, ctx, bss_conf);
776 iwl_set_rxon_ht(priv, &priv->current_ht_config);
779 iwlagn_set_rxon_chain(priv, ctx);
781 if (bss_conf->use_cts_prot && (priv->band != IEEE80211_BAND_5GHZ))
782 ctx->staging.flags |= RXON_FLG_TGG_PROTECT_MSK;
784 ctx->staging.flags &= ~RXON_FLG_TGG_PROTECT_MSK;
786 if (bss_conf->use_cts_prot)
787 ctx->staging.flags |= RXON_FLG_SELF_CTS_EN;
789 ctx->staging.flags &= ~RXON_FLG_SELF_CTS_EN;
791 memcpy(ctx->staging.bssid_addr, bss_conf->bssid, ETH_ALEN);
793 if (vif->type == NL80211_IFTYPE_AP ||
794 vif->type == NL80211_IFTYPE_ADHOC) {
795 if (vif->bss_conf.enable_beacon) {
796 ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK;
797 priv->beacon_ctx = ctx;
799 ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
800 priv->beacon_ctx = NULL;
804 if (force || memcmp(&ctx->staging, &ctx->active, sizeof(ctx->staging)))
805 iwlagn_commit_rxon(priv, ctx);
807 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc) {
809 * The chain noise calibration will enable PM upon
810 * completion. If calibration has already been run
811 * then we need to enable power management here.
813 if (priv->chain_noise_data.state == IWL_CHAIN_NOISE_DONE)
814 iwl_power_update_mode(priv, false);
816 /* Enable RX differential gain and sensitivity calibrations */
817 if (!priv->disable_chain_noise_cal)
818 iwlagn_chain_noise_reset(priv);
819 priv->start_calib = 1;
822 if (changes & BSS_CHANGED_IBSS) {
823 ret = iwlagn_manage_ibss_station(priv, vif,
824 bss_conf->ibss_joined);
826 IWL_ERR(priv, "failed to %s IBSS station %pM\n",
827 bss_conf->ibss_joined ? "add" : "remove",
831 if (changes & BSS_CHANGED_BEACON && vif->type == NL80211_IFTYPE_ADHOC &&
833 if (iwlagn_update_beacon(priv, vif))
834 IWL_ERR(priv, "Error sending IBSS beacon\n");
837 mutex_unlock(&priv->mutex);
840 void iwlagn_post_scan(struct iwl_priv *priv)
842 struct iwl_rxon_context *ctx;
845 * We do not commit power settings while scan is pending,
846 * do it now if the settings changed.
848 iwl_power_set_mode(priv, &priv->power_data.sleep_cmd_next, false);
849 iwl_set_tx_power(priv, priv->tx_power_next, false);
852 * Since setting the RXON may have been deferred while
853 * performing the scan, fire one off if needed
855 for_each_context(priv, ctx)
856 if (memcmp(&ctx->staging, &ctx->active, sizeof(ctx->staging)))
857 iwlagn_commit_rxon(priv, ctx);
859 iwlagn_set_pan_params(priv);