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2295c66b JB |
1 | /****************************************************************************** |
2 | * | |
3 | * Copyright(c) 2003 - 2010 Intel Corporation. All rights reserved. | |
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" | |
32 | ||
33 | static int iwlagn_disable_bss(struct iwl_priv *priv, | |
34 | struct iwl_rxon_context *ctx, | |
35 | struct iwl_rxon_cmd *send) | |
36 | { | |
37 | __le32 old_filter = send->filter_flags; | |
38 | int ret; | |
39 | ||
40 | send->filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
41 | ret = iwl_send_cmd_pdu(priv, ctx->rxon_cmd, sizeof(*send), send); | |
42 | ||
43 | send->filter_flags = old_filter; | |
44 | ||
45 | if (ret) | |
46 | IWL_ERR(priv, "Error clearing ASSOC_MSK on BSS (%d)\n", ret); | |
47 | ||
48 | return ret; | |
49 | } | |
50 | ||
51 | static int iwlagn_disable_pan(struct iwl_priv *priv, | |
52 | struct iwl_rxon_context *ctx, | |
53 | struct iwl_rxon_cmd *send) | |
54 | { | |
55 | __le32 old_filter = send->filter_flags; | |
56 | u8 old_dev_type = send->dev_type; | |
57 | int ret; | |
58 | ||
59 | send->filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
60 | send->dev_type = RXON_DEV_TYPE_P2P; | |
61 | ret = iwl_send_cmd_pdu(priv, ctx->rxon_cmd, sizeof(*send), send); | |
62 | ||
63 | send->filter_flags = old_filter; | |
64 | send->dev_type = old_dev_type; | |
65 | ||
66 | if (ret) | |
67 | IWL_ERR(priv, "Error disabling PAN (%d)\n", ret); | |
68 | ||
69 | /* FIXME: WAIT FOR PAN DISABLE */ | |
70 | msleep(300); | |
71 | ||
72 | return ret; | |
73 | } | |
74 | ||
f4115d46 SZ |
75 | static void iwlagn_update_qos(struct iwl_priv *priv, |
76 | struct iwl_rxon_context *ctx) | |
77 | { | |
78 | int ret; | |
79 | ||
80 | if (!ctx->is_active) | |
81 | return; | |
82 | ||
83 | ctx->qos_data.def_qos_parm.qos_flags = 0; | |
84 | ||
85 | if (ctx->qos_data.qos_active) | |
86 | ctx->qos_data.def_qos_parm.qos_flags |= | |
87 | QOS_PARAM_FLG_UPDATE_EDCA_MSK; | |
88 | ||
89 | if (ctx->ht.enabled) | |
90 | ctx->qos_data.def_qos_parm.qos_flags |= QOS_PARAM_FLG_TGN_MSK; | |
91 | ||
92 | IWL_DEBUG_QOS(priv, "send QoS cmd with Qos active=%d FLAGS=0x%X\n", | |
93 | ctx->qos_data.qos_active, | |
94 | ctx->qos_data.def_qos_parm.qos_flags); | |
95 | ||
96 | ret = iwl_send_cmd_pdu(priv, ctx->qos_cmd, | |
97 | sizeof(struct iwl_qosparam_cmd), | |
98 | &ctx->qos_data.def_qos_parm); | |
99 | if (ret) | |
100 | IWL_ERR(priv, "Failed to update QoS\n"); | |
101 | } | |
102 | ||
bd50a8ab JB |
103 | static int iwlagn_update_beacon(struct iwl_priv *priv, |
104 | struct ieee80211_vif *vif) | |
105 | { | |
106 | lockdep_assert_held(&priv->mutex); | |
107 | ||
108 | dev_kfree_skb(priv->beacon_skb); | |
109 | priv->beacon_skb = ieee80211_beacon_get(priv->hw, vif); | |
110 | if (!priv->beacon_skb) | |
111 | return -ENOMEM; | |
112 | return iwlagn_send_beacon_cmd(priv); | |
113 | } | |
114 | ||
2295c66b JB |
115 | /** |
116 | * iwlagn_commit_rxon - commit staging_rxon to hardware | |
117 | * | |
118 | * The RXON command in staging_rxon is committed to the hardware and | |
119 | * the active_rxon structure is updated with the new data. This | |
120 | * function correctly transitions out of the RXON_ASSOC_MSK state if | |
121 | * a HW tune is required based on the RXON structure changes. | |
122 | */ | |
123 | int iwlagn_commit_rxon(struct iwl_priv *priv, struct iwl_rxon_context *ctx) | |
124 | { | |
125 | /* cast away the const for active_rxon in this function */ | |
126 | struct iwl_rxon_cmd *active = (void *)&ctx->active; | |
2295c66b | 127 | bool new_assoc = !!(ctx->staging.filter_flags & RXON_FILTER_ASSOC_MSK); |
2b5f7a67 | 128 | bool old_assoc = !!(ctx->active.filter_flags & RXON_FILTER_ASSOC_MSK); |
2295c66b JB |
129 | int ret; |
130 | ||
131 | lockdep_assert_held(&priv->mutex); | |
132 | ||
adb90a00 WYG |
133 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
134 | return -EINVAL; | |
135 | ||
2295c66b JB |
136 | if (!iwl_is_alive(priv)) |
137 | return -EBUSY; | |
138 | ||
139 | /* This function hardcodes a bunch of dual-mode assumptions */ | |
140 | BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2); | |
141 | ||
142 | if (!ctx->is_active) | |
143 | return 0; | |
144 | ||
145 | /* always get timestamp with Rx frame */ | |
146 | ctx->staging.flags |= RXON_FLG_TSF2HOST_MSK; | |
147 | ||
148 | if ((ctx->vif && ctx->vif->bss_conf.use_short_slot) || | |
149 | !(ctx->staging.flags & RXON_FLG_BAND_24G_MSK)) | |
150 | ctx->staging.flags |= RXON_FLG_SHORT_SLOT_MSK; | |
151 | else | |
152 | ctx->staging.flags &= ~RXON_FLG_SHORT_SLOT_MSK; | |
153 | ||
154 | ret = iwl_check_rxon_cmd(priv, ctx); | |
155 | if (ret) { | |
156 | IWL_ERR(priv, "Invalid RXON configuration. Not committing.\n"); | |
157 | return -EINVAL; | |
158 | } | |
159 | ||
160 | /* | |
161 | * receive commit_rxon request | |
162 | * abort any previous channel switch if still in process | |
163 | */ | |
164 | if (priv->switch_rxon.switch_in_progress && | |
165 | (priv->switch_rxon.channel != ctx->staging.channel)) { | |
166 | IWL_DEBUG_11H(priv, "abort channel switch on %d\n", | |
167 | le16_to_cpu(priv->switch_rxon.channel)); | |
168 | iwl_chswitch_done(priv, false); | |
169 | } | |
170 | ||
171 | /* | |
172 | * If we don't need to send a full RXON, we can use | |
173 | * iwl_rxon_assoc_cmd which is used to reconfigure filter | |
174 | * and other flags for the current radio configuration. | |
175 | */ | |
176 | if (!iwl_full_rxon_required(priv, ctx)) { | |
177 | ret = iwl_send_rxon_assoc(priv, ctx); | |
178 | if (ret) { | |
179 | IWL_ERR(priv, "Error setting RXON_ASSOC (%d)\n", ret); | |
180 | return ret; | |
181 | } | |
182 | ||
183 | memcpy(active, &ctx->staging, sizeof(*active)); | |
184 | iwl_print_rx_config_cmd(priv, ctx); | |
185 | return 0; | |
186 | } | |
187 | ||
188 | if (priv->cfg->ops->hcmd->set_pan_params) { | |
189 | ret = priv->cfg->ops->hcmd->set_pan_params(priv); | |
190 | if (ret) | |
191 | return ret; | |
192 | } | |
193 | ||
194 | iwl_set_rxon_hwcrypto(priv, ctx, !priv->cfg->mod_params->sw_crypto); | |
195 | ||
196 | IWL_DEBUG_INFO(priv, | |
197 | "Going to commit RXON\n" | |
198 | " * with%s RXON_FILTER_ASSOC_MSK\n" | |
199 | " * channel = %d\n" | |
200 | " * bssid = %pM\n", | |
201 | (new_assoc ? "" : "out"), | |
202 | le16_to_cpu(ctx->staging.channel), | |
203 | ctx->staging.bssid_addr); | |
204 | ||
205 | /* | |
52d980c0 JB |
206 | * Always clear associated first, but with the correct config. |
207 | * This is required as for example station addition for the | |
208 | * AP station must be done after the BSSID is set to correctly | |
209 | * set up filters in the device. | |
2295c66b | 210 | */ |
2b5f7a67 JB |
211 | if ((old_assoc && new_assoc) || !new_assoc) { |
212 | if (ctx->ctxid == IWL_RXON_CTX_BSS) | |
213 | ret = iwlagn_disable_bss(priv, ctx, &ctx->staging); | |
214 | else | |
215 | ret = iwlagn_disable_pan(priv, ctx, &ctx->staging); | |
216 | if (ret) | |
217 | return ret; | |
2295c66b | 218 | |
2b5f7a67 | 219 | memcpy(active, &ctx->staging, sizeof(*active)); |
2295c66b | 220 | |
2b5f7a67 JB |
221 | /* |
222 | * Un-assoc RXON clears the station table and WEP | |
223 | * keys, so we have to restore those afterwards. | |
224 | */ | |
225 | iwl_clear_ucode_stations(priv, ctx); | |
226 | iwl_restore_stations(priv, ctx); | |
227 | ret = iwl_restore_default_wep_keys(priv, ctx); | |
228 | if (ret) { | |
229 | IWL_ERR(priv, "Failed to restore WEP keys (%d)\n", ret); | |
230 | return ret; | |
231 | } | |
2295c66b JB |
232 | } |
233 | ||
234 | /* RXON timing must be before associated RXON */ | |
235 | ret = iwl_send_rxon_timing(priv, ctx); | |
236 | if (ret) { | |
237 | IWL_ERR(priv, "Failed to send timing (%d)!\n", ret); | |
238 | return ret; | |
239 | } | |
240 | ||
241 | if (new_assoc) { | |
f4115d46 SZ |
242 | /* QoS info may be cleared by previous un-assoc RXON */ |
243 | iwlagn_update_qos(priv, ctx); | |
244 | ||
bd50a8ab JB |
245 | /* |
246 | * We'll run into this code path when beaconing is | |
247 | * enabled, but then we also need to send the beacon | |
248 | * to the device. | |
249 | */ | |
250 | if (ctx->vif && (ctx->vif->type == NL80211_IFTYPE_AP)) { | |
251 | ret = iwlagn_update_beacon(priv, ctx->vif); | |
252 | if (ret) { | |
253 | IWL_ERR(priv, | |
254 | "Error sending required beacon (%d)!\n", | |
255 | ret); | |
256 | return ret; | |
257 | } | |
2295c66b JB |
258 | } |
259 | ||
260 | priv->start_calib = 0; | |
261 | /* | |
262 | * Apply the new configuration. | |
263 | * | |
264 | * Associated RXON doesn't clear the station table in uCode, | |
265 | * so we don't need to restore stations etc. after this. | |
266 | */ | |
267 | ret = iwl_send_cmd_pdu(priv, ctx->rxon_cmd, | |
268 | sizeof(struct iwl_rxon_cmd), &ctx->staging); | |
269 | if (ret) { | |
270 | IWL_ERR(priv, "Error setting new RXON (%d)\n", ret); | |
271 | return ret; | |
272 | } | |
273 | memcpy(active, &ctx->staging, sizeof(*active)); | |
bd50a8ab | 274 | |
2b5f7a67 JB |
275 | iwl_reprogram_ap_sta(priv, ctx); |
276 | ||
bd50a8ab JB |
277 | /* IBSS beacon needs to be sent after setting assoc */ |
278 | if (ctx->vif && (ctx->vif->type == NL80211_IFTYPE_ADHOC)) | |
279 | if (iwlagn_update_beacon(priv, ctx->vif)) | |
280 | IWL_ERR(priv, "Error sending IBSS beacon\n"); | |
2295c66b JB |
281 | } |
282 | ||
283 | iwl_print_rx_config_cmd(priv, ctx); | |
284 | ||
285 | iwl_init_sensitivity(priv); | |
286 | ||
287 | /* | |
288 | * If we issue a new RXON command which required a tune then we must | |
289 | * send a new TXPOWER command or we won't be able to Tx any frames. | |
290 | * | |
291 | * FIXME: which RXON requires a tune? Can we optimise this out in | |
292 | * some cases? | |
293 | */ | |
294 | ret = iwl_set_tx_power(priv, priv->tx_power_user_lmt, true); | |
295 | if (ret) { | |
296 | IWL_ERR(priv, "Error sending TX power (%d)\n", ret); | |
297 | return ret; | |
298 | } | |
299 | ||
300 | return 0; | |
301 | } | |
302 | ||
303 | int iwlagn_mac_config(struct ieee80211_hw *hw, u32 changed) | |
304 | { | |
305 | struct iwl_priv *priv = hw->priv; | |
306 | struct iwl_rxon_context *ctx; | |
307 | struct ieee80211_conf *conf = &hw->conf; | |
308 | struct ieee80211_channel *channel = conf->channel; | |
309 | const struct iwl_channel_info *ch_info; | |
310 | int ret = 0; | |
35a6eb36 | 311 | bool ht_changed[NUM_IWL_RXON_CTX] = {}; |
2295c66b JB |
312 | |
313 | IWL_DEBUG_MAC80211(priv, "changed %#x", changed); | |
314 | ||
315 | mutex_lock(&priv->mutex); | |
316 | ||
317 | if (unlikely(test_bit(STATUS_SCANNING, &priv->status))) { | |
318 | IWL_DEBUG_MAC80211(priv, "leave - scanning\n"); | |
319 | goto out; | |
320 | } | |
321 | ||
322 | if (!iwl_is_ready(priv)) { | |
323 | IWL_DEBUG_MAC80211(priv, "leave - not ready\n"); | |
324 | goto out; | |
325 | } | |
326 | ||
327 | if (changed & (IEEE80211_CONF_CHANGE_SMPS | | |
328 | IEEE80211_CONF_CHANGE_CHANNEL)) { | |
329 | /* mac80211 uses static for non-HT which is what we want */ | |
330 | priv->current_ht_config.smps = conf->smps_mode; | |
331 | ||
332 | /* | |
333 | * Recalculate chain counts. | |
334 | * | |
335 | * If monitor mode is enabled then mac80211 will | |
336 | * set up the SM PS mode to OFF if an HT channel is | |
337 | * configured. | |
338 | */ | |
339 | if (priv->cfg->ops->hcmd->set_rxon_chain) | |
340 | for_each_context(priv, ctx) | |
341 | priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx); | |
342 | } | |
343 | ||
344 | if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { | |
345 | unsigned long flags; | |
346 | ||
347 | ch_info = iwl_get_channel_info(priv, channel->band, | |
348 | channel->hw_value); | |
349 | if (!is_channel_valid(ch_info)) { | |
350 | IWL_DEBUG_MAC80211(priv, "leave - invalid channel\n"); | |
351 | ret = -EINVAL; | |
352 | goto out; | |
353 | } | |
354 | ||
355 | spin_lock_irqsave(&priv->lock, flags); | |
356 | ||
357 | for_each_context(priv, ctx) { | |
358 | /* Configure HT40 channels */ | |
35a6eb36 WYG |
359 | if (ctx->ht.enabled != conf_is_ht(conf)) { |
360 | ctx->ht.enabled = conf_is_ht(conf); | |
361 | ht_changed[ctx->ctxid] = true; | |
362 | } | |
363 | ||
2295c66b JB |
364 | if (ctx->ht.enabled) { |
365 | if (conf_is_ht40_minus(conf)) { | |
366 | ctx->ht.extension_chan_offset = | |
367 | IEEE80211_HT_PARAM_CHA_SEC_BELOW; | |
368 | ctx->ht.is_40mhz = true; | |
369 | } else if (conf_is_ht40_plus(conf)) { | |
370 | ctx->ht.extension_chan_offset = | |
371 | IEEE80211_HT_PARAM_CHA_SEC_ABOVE; | |
372 | ctx->ht.is_40mhz = true; | |
373 | } else { | |
374 | ctx->ht.extension_chan_offset = | |
375 | IEEE80211_HT_PARAM_CHA_SEC_NONE; | |
376 | ctx->ht.is_40mhz = false; | |
377 | } | |
378 | } else | |
379 | ctx->ht.is_40mhz = false; | |
380 | ||
381 | /* | |
382 | * Default to no protection. Protection mode will | |
383 | * later be set from BSS config in iwl_ht_conf | |
384 | */ | |
385 | ctx->ht.protection = IEEE80211_HT_OP_MODE_PROTECTION_NONE; | |
386 | ||
387 | /* if we are switching from ht to 2.4 clear flags | |
388 | * from any ht related info since 2.4 does not | |
389 | * support ht */ | |
390 | if (le16_to_cpu(ctx->staging.channel) != | |
391 | channel->hw_value) | |
392 | ctx->staging.flags = 0; | |
393 | ||
394 | iwl_set_rxon_channel(priv, channel, ctx); | |
395 | iwl_set_rxon_ht(priv, &priv->current_ht_config); | |
396 | ||
397 | iwl_set_flags_for_band(priv, ctx, channel->band, | |
398 | ctx->vif); | |
399 | } | |
400 | ||
401 | spin_unlock_irqrestore(&priv->lock, flags); | |
402 | ||
403 | iwl_update_bcast_stations(priv); | |
404 | ||
405 | /* | |
406 | * The list of supported rates and rate mask can be different | |
407 | * for each band; since the band may have changed, reset | |
408 | * the rate mask to what mac80211 lists. | |
409 | */ | |
410 | iwl_set_rate(priv); | |
411 | } | |
412 | ||
413 | if (changed & (IEEE80211_CONF_CHANGE_PS | | |
414 | IEEE80211_CONF_CHANGE_IDLE)) { | |
415 | ret = iwl_power_update_mode(priv, false); | |
416 | if (ret) | |
417 | IWL_DEBUG_MAC80211(priv, "Error setting sleep level\n"); | |
418 | } | |
419 | ||
420 | if (changed & IEEE80211_CONF_CHANGE_POWER) { | |
421 | IWL_DEBUG_MAC80211(priv, "TX Power old=%d new=%d\n", | |
422 | priv->tx_power_user_lmt, conf->power_level); | |
423 | ||
424 | iwl_set_tx_power(priv, conf->power_level, false); | |
425 | } | |
426 | ||
427 | for_each_context(priv, ctx) { | |
428 | if (!memcmp(&ctx->staging, &ctx->active, sizeof(ctx->staging))) | |
429 | continue; | |
430 | iwlagn_commit_rxon(priv, ctx); | |
35a6eb36 WYG |
431 | if (ht_changed[ctx->ctxid]) |
432 | iwlagn_update_qos(priv, ctx); | |
2295c66b JB |
433 | } |
434 | out: | |
435 | mutex_unlock(&priv->mutex); | |
436 | return ret; | |
437 | } | |
438 | ||
2295c66b JB |
439 | static void iwlagn_check_needed_chains(struct iwl_priv *priv, |
440 | struct iwl_rxon_context *ctx, | |
441 | struct ieee80211_bss_conf *bss_conf) | |
442 | { | |
443 | struct ieee80211_vif *vif = ctx->vif; | |
444 | struct iwl_rxon_context *tmp; | |
445 | struct ieee80211_sta *sta; | |
446 | struct iwl_ht_config *ht_conf = &priv->current_ht_config; | |
447 | bool need_multiple; | |
448 | ||
449 | lockdep_assert_held(&priv->mutex); | |
450 | ||
451 | switch (vif->type) { | |
452 | case NL80211_IFTYPE_STATION: | |
453 | rcu_read_lock(); | |
454 | sta = ieee80211_find_sta(vif, bss_conf->bssid); | |
455 | if (sta) { | |
456 | struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap; | |
457 | int maxstreams; | |
458 | ||
459 | maxstreams = (ht_cap->mcs.tx_params & | |
460 | IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK) | |
461 | >> IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT; | |
462 | maxstreams += 1; | |
463 | ||
2e1fea43 JB |
464 | need_multiple = true; |
465 | ||
2295c66b JB |
466 | if ((ht_cap->mcs.rx_mask[1] == 0) && |
467 | (ht_cap->mcs.rx_mask[2] == 0)) | |
468 | need_multiple = false; | |
469 | if (maxstreams <= 1) | |
2e1fea43 | 470 | need_multiple = false; |
2295c66b JB |
471 | } else { |
472 | /* | |
473 | * If at all, this can only happen through a race | |
474 | * when the AP disconnects us while we're still | |
475 | * setting up the connection, in that case mac80211 | |
476 | * will soon tell us about that. | |
477 | */ | |
478 | need_multiple = false; | |
479 | } | |
480 | rcu_read_unlock(); | |
481 | break; | |
482 | case NL80211_IFTYPE_ADHOC: | |
483 | /* currently */ | |
484 | need_multiple = false; | |
485 | break; | |
486 | default: | |
487 | /* only AP really */ | |
488 | need_multiple = true; | |
489 | break; | |
490 | } | |
491 | ||
492 | ctx->ht_need_multiple_chains = need_multiple; | |
493 | ||
494 | if (!need_multiple) { | |
495 | /* check all contexts */ | |
496 | for_each_context(priv, tmp) { | |
497 | if (!tmp->vif) | |
498 | continue; | |
499 | if (tmp->ht_need_multiple_chains) { | |
500 | need_multiple = true; | |
501 | break; | |
502 | } | |
503 | } | |
504 | } | |
505 | ||
506 | ht_conf->single_chain_sufficient = !need_multiple; | |
507 | } | |
508 | ||
509 | void iwlagn_bss_info_changed(struct ieee80211_hw *hw, | |
510 | struct ieee80211_vif *vif, | |
511 | struct ieee80211_bss_conf *bss_conf, | |
512 | u32 changes) | |
513 | { | |
514 | struct iwl_priv *priv = hw->priv; | |
515 | struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif); | |
516 | int ret; | |
517 | bool force = false; | |
518 | ||
519 | mutex_lock(&priv->mutex); | |
520 | ||
ae0b693c SZ |
521 | if (unlikely(!iwl_is_ready(priv))) { |
522 | IWL_DEBUG_MAC80211(priv, "leave - not ready\n"); | |
523 | mutex_unlock(&priv->mutex); | |
524 | return; | |
525 | } | |
526 | ||
527 | if (unlikely(!ctx->vif)) { | |
528 | IWL_DEBUG_MAC80211(priv, "leave - vif is NULL\n"); | |
893654de JB |
529 | mutex_unlock(&priv->mutex); |
530 | return; | |
531 | } | |
532 | ||
2295c66b JB |
533 | if (changes & BSS_CHANGED_BEACON_INT) |
534 | force = true; | |
535 | ||
536 | if (changes & BSS_CHANGED_QOS) { | |
537 | ctx->qos_data.qos_active = bss_conf->qos; | |
538 | iwlagn_update_qos(priv, ctx); | |
539 | } | |
540 | ||
541 | ctx->staging.assoc_id = cpu_to_le16(vif->bss_conf.aid); | |
542 | if (vif->bss_conf.use_short_preamble) | |
543 | ctx->staging.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; | |
544 | else | |
545 | ctx->staging.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; | |
546 | ||
547 | if (changes & BSS_CHANGED_ASSOC) { | |
548 | if (bss_conf->assoc) { | |
549 | iwl_led_associate(priv); | |
550 | priv->timestamp = bss_conf->timestamp; | |
551 | ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK; | |
552 | } else { | |
553 | ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
554 | iwl_led_disassociate(priv); | |
555 | } | |
556 | } | |
557 | ||
558 | if (ctx->ht.enabled) { | |
559 | ctx->ht.protection = bss_conf->ht_operation_mode & | |
560 | IEEE80211_HT_OP_MODE_PROTECTION; | |
561 | ctx->ht.non_gf_sta_present = !!(bss_conf->ht_operation_mode & | |
562 | IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT); | |
563 | iwlagn_check_needed_chains(priv, ctx, bss_conf); | |
b2769b84 | 564 | iwl_set_rxon_ht(priv, &priv->current_ht_config); |
2295c66b JB |
565 | } |
566 | ||
567 | if (priv->cfg->ops->hcmd->set_rxon_chain) | |
568 | priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx); | |
569 | ||
570 | if (bss_conf->use_cts_prot && (priv->band != IEEE80211_BAND_5GHZ)) | |
571 | ctx->staging.flags |= RXON_FLG_TGG_PROTECT_MSK; | |
572 | else | |
573 | ctx->staging.flags &= ~RXON_FLG_TGG_PROTECT_MSK; | |
574 | ||
575 | if (bss_conf->use_cts_prot) | |
576 | ctx->staging.flags |= RXON_FLG_SELF_CTS_EN; | |
577 | else | |
578 | ctx->staging.flags &= ~RXON_FLG_SELF_CTS_EN; | |
579 | ||
580 | memcpy(ctx->staging.bssid_addr, bss_conf->bssid, ETH_ALEN); | |
581 | ||
582 | if (vif->type == NL80211_IFTYPE_AP || | |
583 | vif->type == NL80211_IFTYPE_ADHOC) { | |
584 | if (vif->bss_conf.enable_beacon) { | |
585 | ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK; | |
586 | priv->beacon_ctx = ctx; | |
587 | } else { | |
588 | ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
589 | priv->beacon_ctx = NULL; | |
590 | } | |
591 | } | |
592 | ||
593 | if (force || memcmp(&ctx->staging, &ctx->active, sizeof(ctx->staging))) | |
594 | iwlagn_commit_rxon(priv, ctx); | |
595 | ||
8da8e628 JB |
596 | if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc) { |
597 | /* | |
598 | * The chain noise calibration will enable PM upon | |
599 | * completion. If calibration has already been run | |
600 | * then we need to enable power management here. | |
601 | */ | |
602 | if (priv->chain_noise_data.state == IWL_CHAIN_NOISE_DONE) | |
603 | iwl_power_update_mode(priv, false); | |
604 | ||
605 | /* Enable RX differential gain and sensitivity calibrations */ | |
606 | iwl_chain_noise_reset(priv); | |
607 | priv->start_calib = 1; | |
608 | } | |
609 | ||
2295c66b JB |
610 | if (changes & BSS_CHANGED_IBSS) { |
611 | ret = iwlagn_manage_ibss_station(priv, vif, | |
612 | bss_conf->ibss_joined); | |
613 | if (ret) | |
614 | IWL_ERR(priv, "failed to %s IBSS station %pM\n", | |
615 | bss_conf->ibss_joined ? "add" : "remove", | |
616 | bss_conf->bssid); | |
617 | } | |
618 | ||
bd50a8ab JB |
619 | if (changes & BSS_CHANGED_BEACON && vif->type == NL80211_IFTYPE_ADHOC && |
620 | priv->beacon_ctx) { | |
621 | if (iwlagn_update_beacon(priv, vif)) | |
622 | IWL_ERR(priv, "Error sending IBSS beacon\n"); | |
623 | } | |
624 | ||
2295c66b JB |
625 | mutex_unlock(&priv->mutex); |
626 | } | |
ae79d23d JB |
627 | |
628 | void iwlagn_post_scan(struct iwl_priv *priv) | |
629 | { | |
630 | struct iwl_rxon_context *ctx; | |
631 | ||
632 | /* | |
633 | * Since setting the RXON may have been deferred while | |
634 | * performing the scan, fire one off if needed | |
635 | */ | |
636 | for_each_context(priv, ctx) | |
637 | if (memcmp(&ctx->staging, &ctx->active, sizeof(ctx->staging))) | |
638 | iwlagn_commit_rxon(priv, ctx); | |
639 | ||
640 | if (priv->cfg->ops->hcmd->set_pan_params) | |
641 | priv->cfg->ops->hcmd->set_pan_params(priv); | |
642 | } |