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2295c66b JB |
1 | /****************************************************************************** |
2 | * | |
51368bf7 | 3 | * Copyright(c) 2003 - 2014 Intel Corporation. All rights reserved. |
6eb031d2 | 4 | * Copyright(c) 2015 Intel Deutschland GmbH |
2295c66b JB |
5 | * |
6 | * This program is free software; you can redistribute it and/or modify it | |
7 | * under the terms of version 2 of the GNU General Public License as | |
8 | * published by the Free Software Foundation. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
11 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
12 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
13 | * more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License along with | |
16 | * this program; if not, write to the Free Software Foundation, Inc., | |
17 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA | |
18 | * | |
19 | * The full GNU General Public License is included in this distribution in the | |
20 | * file called LICENSE. | |
21 | * | |
22 | * Contact Information: | |
23 | * Intel Linux Wireless <ilw@linux.intel.com> | |
24 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | |
25 | * | |
26 | *****************************************************************************/ | |
27 | ||
55620921 | 28 | #include <linux/etherdevice.h> |
bdfbf092 | 29 | #include "iwl-trans.h" |
65de7e84 | 30 | #include "iwl-modparams.h" |
1023fdc4 JB |
31 | #include "dev.h" |
32 | #include "agn.h" | |
33 | #include "calib.h" | |
2295c66b | 34 | |
47042ac2 MV |
35 | /* |
36 | * initialize rxon structure with default values from eeprom | |
37 | */ | |
38 | void iwl_connection_init_rx_config(struct iwl_priv *priv, | |
39 | struct iwl_rxon_context *ctx) | |
40 | { | |
47042ac2 MV |
41 | memset(&ctx->staging, 0, sizeof(ctx->staging)); |
42 | ||
43 | if (!ctx->vif) { | |
44 | ctx->staging.dev_type = ctx->unused_devtype; | |
45 | } else | |
46 | switch (ctx->vif->type) { | |
47 | case NL80211_IFTYPE_AP: | |
48 | ctx->staging.dev_type = ctx->ap_devtype; | |
49 | break; | |
50 | ||
51 | case NL80211_IFTYPE_STATION: | |
52 | ctx->staging.dev_type = ctx->station_devtype; | |
53 | ctx->staging.filter_flags = RXON_FILTER_ACCEPT_GRP_MSK; | |
54 | break; | |
55 | ||
56 | case NL80211_IFTYPE_ADHOC: | |
57 | ctx->staging.dev_type = ctx->ibss_devtype; | |
58 | ctx->staging.flags = RXON_FLG_SHORT_PREAMBLE_MSK; | |
59 | ctx->staging.filter_flags = RXON_FILTER_BCON_AWARE_MSK | | |
60 | RXON_FILTER_ACCEPT_GRP_MSK; | |
61 | break; | |
62 | ||
57897726 JB |
63 | case NL80211_IFTYPE_MONITOR: |
64 | ctx->staging.dev_type = RXON_DEV_TYPE_SNIFFER; | |
65 | break; | |
66 | ||
47042ac2 MV |
67 | default: |
68 | IWL_ERR(priv, "Unsupported interface type %d\n", | |
69 | ctx->vif->type); | |
70 | break; | |
71 | } | |
72 | ||
73 | #if 0 | |
74 | /* TODO: Figure out when short_preamble would be set and cache from | |
75 | * that */ | |
76 | if (!hw_to_local(priv->hw)->short_preamble) | |
77 | ctx->staging.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; | |
78 | else | |
79 | ctx->staging.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; | |
80 | #endif | |
81 | ||
675a0b04 KB |
82 | ctx->staging.channel = |
83 | cpu_to_le16(priv->hw->conf.chandef.chan->hw_value); | |
84 | priv->band = priv->hw->conf.chandef.chan->band; | |
47042ac2 MV |
85 | |
86 | iwl_set_flags_for_band(priv, ctx, priv->band, ctx->vif); | |
87 | ||
47042ac2 MV |
88 | /* clear both MIX and PURE40 mode flag */ |
89 | ctx->staging.flags &= ~(RXON_FLG_CHANNEL_MODE_MIXED | | |
90 | RXON_FLG_CHANNEL_MODE_PURE_40); | |
91 | if (ctx->vif) | |
92 | memcpy(ctx->staging.node_addr, ctx->vif->addr, ETH_ALEN); | |
93 | ||
94 | ctx->staging.ofdm_ht_single_stream_basic_rates = 0xff; | |
95 | ctx->staging.ofdm_ht_dual_stream_basic_rates = 0xff; | |
96 | ctx->staging.ofdm_ht_triple_stream_basic_rates = 0xff; | |
97 | } | |
98 | ||
2295c66b JB |
99 | static int iwlagn_disable_bss(struct iwl_priv *priv, |
100 | struct iwl_rxon_context *ctx, | |
101 | struct iwl_rxon_cmd *send) | |
102 | { | |
103 | __le32 old_filter = send->filter_flags; | |
104 | int ret; | |
105 | ||
106 | send->filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
e10a0533 | 107 | ret = iwl_dvm_send_cmd_pdu(priv, ctx->rxon_cmd, |
a1022927 | 108 | 0, sizeof(*send), send); |
2295c66b JB |
109 | |
110 | send->filter_flags = old_filter; | |
111 | ||
112 | if (ret) | |
b36b110c TP |
113 | IWL_DEBUG_QUIET_RFKILL(priv, |
114 | "Error clearing ASSOC_MSK on BSS (%d)\n", ret); | |
2295c66b JB |
115 | |
116 | return ret; | |
117 | } | |
118 | ||
119 | static int iwlagn_disable_pan(struct iwl_priv *priv, | |
120 | struct iwl_rxon_context *ctx, | |
121 | struct iwl_rxon_cmd *send) | |
122 | { | |
311dce71 | 123 | struct iwl_notification_wait disable_wait; |
2295c66b JB |
124 | __le32 old_filter = send->filter_flags; |
125 | u8 old_dev_type = send->dev_type; | |
126 | int ret; | |
6eb031d2 | 127 | static const u16 deactivate_cmd[] = { |
db662d47 JB |
128 | REPLY_WIPAN_DEACTIVATION_COMPLETE |
129 | }; | |
2295c66b | 130 | |
4bd14dd5 | 131 | iwl_init_notification_wait(&priv->notif_wait, &disable_wait, |
db662d47 | 132 | deactivate_cmd, ARRAY_SIZE(deactivate_cmd), |
4bd14dd5 | 133 | NULL, NULL); |
311dce71 | 134 | |
2295c66b JB |
135 | send->filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
136 | send->dev_type = RXON_DEV_TYPE_P2P; | |
e10a0533 | 137 | ret = iwl_dvm_send_cmd_pdu(priv, ctx->rxon_cmd, |
a1022927 | 138 | 0, sizeof(*send), send); |
2295c66b JB |
139 | |
140 | send->filter_flags = old_filter; | |
141 | send->dev_type = old_dev_type; | |
142 | ||
311dce71 | 143 | if (ret) { |
2295c66b | 144 | IWL_ERR(priv, "Error disabling PAN (%d)\n", ret); |
4bd14dd5 | 145 | iwl_remove_notification(&priv->notif_wait, &disable_wait); |
311dce71 | 146 | } else { |
4bd14dd5 JB |
147 | ret = iwl_wait_notification(&priv->notif_wait, |
148 | &disable_wait, HZ); | |
a8674a1e | 149 | if (ret) |
311dce71 JB |
150 | IWL_ERR(priv, "Timed out waiting for PAN disable\n"); |
151 | } | |
2295c66b JB |
152 | |
153 | return ret; | |
154 | } | |
155 | ||
2b9253d2 JB |
156 | static int iwlagn_disconn_pan(struct iwl_priv *priv, |
157 | struct iwl_rxon_context *ctx, | |
158 | struct iwl_rxon_cmd *send) | |
159 | { | |
160 | __le32 old_filter = send->filter_flags; | |
161 | int ret; | |
162 | ||
163 | send->filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
a1022927 | 164 | ret = iwl_dvm_send_cmd_pdu(priv, ctx->rxon_cmd, 0, |
e419d62d | 165 | sizeof(*send), send); |
2b9253d2 JB |
166 | |
167 | send->filter_flags = old_filter; | |
168 | ||
169 | return ret; | |
170 | } | |
171 | ||
aca86268 JB |
172 | static void iwlagn_update_qos(struct iwl_priv *priv, |
173 | struct iwl_rxon_context *ctx) | |
f4115d46 SZ |
174 | { |
175 | int ret; | |
176 | ||
177 | if (!ctx->is_active) | |
178 | return; | |
179 | ||
180 | ctx->qos_data.def_qos_parm.qos_flags = 0; | |
181 | ||
182 | if (ctx->qos_data.qos_active) | |
183 | ctx->qos_data.def_qos_parm.qos_flags |= | |
184 | QOS_PARAM_FLG_UPDATE_EDCA_MSK; | |
185 | ||
186 | if (ctx->ht.enabled) | |
187 | ctx->qos_data.def_qos_parm.qos_flags |= QOS_PARAM_FLG_TGN_MSK; | |
188 | ||
0dcf50ca | 189 | IWL_DEBUG_INFO(priv, "send QoS cmd with Qos active=%d FLAGS=0x%X\n", |
f4115d46 SZ |
190 | ctx->qos_data.qos_active, |
191 | ctx->qos_data.def_qos_parm.qos_flags); | |
192 | ||
a1022927 | 193 | ret = iwl_dvm_send_cmd_pdu(priv, ctx->qos_cmd, 0, |
f4115d46 SZ |
194 | sizeof(struct iwl_qosparam_cmd), |
195 | &ctx->qos_data.def_qos_parm); | |
196 | if (ret) | |
b36b110c | 197 | IWL_DEBUG_QUIET_RFKILL(priv, "Failed to update QoS\n"); |
f4115d46 SZ |
198 | } |
199 | ||
aca86268 JB |
200 | static int iwlagn_update_beacon(struct iwl_priv *priv, |
201 | struct ieee80211_vif *vif) | |
bd50a8ab | 202 | { |
b1eea297 | 203 | lockdep_assert_held(&priv->mutex); |
bd50a8ab JB |
204 | |
205 | dev_kfree_skb(priv->beacon_skb); | |
206 | priv->beacon_skb = ieee80211_beacon_get(priv->hw, vif); | |
207 | if (!priv->beacon_skb) | |
208 | return -ENOMEM; | |
209 | return iwlagn_send_beacon_cmd(priv); | |
210 | } | |
211 | ||
c3f6e9cf | 212 | static int iwlagn_send_rxon_assoc(struct iwl_priv *priv, |
aca86268 | 213 | struct iwl_rxon_context *ctx) |
c3f6e9cf WYG |
214 | { |
215 | int ret = 0; | |
89e746b2 | 216 | struct iwl_rxon_assoc_cmd rxon_assoc; |
c3f6e9cf WYG |
217 | const struct iwl_rxon_cmd *rxon1 = &ctx->staging; |
218 | const struct iwl_rxon_cmd *rxon2 = &ctx->active; | |
219 | ||
220 | if ((rxon1->flags == rxon2->flags) && | |
221 | (rxon1->filter_flags == rxon2->filter_flags) && | |
222 | (rxon1->cck_basic_rates == rxon2->cck_basic_rates) && | |
223 | (rxon1->ofdm_ht_single_stream_basic_rates == | |
224 | rxon2->ofdm_ht_single_stream_basic_rates) && | |
225 | (rxon1->ofdm_ht_dual_stream_basic_rates == | |
226 | rxon2->ofdm_ht_dual_stream_basic_rates) && | |
227 | (rxon1->ofdm_ht_triple_stream_basic_rates == | |
228 | rxon2->ofdm_ht_triple_stream_basic_rates) && | |
229 | (rxon1->acquisition_data == rxon2->acquisition_data) && | |
230 | (rxon1->rx_chain == rxon2->rx_chain) && | |
231 | (rxon1->ofdm_basic_rates == rxon2->ofdm_basic_rates)) { | |
232 | IWL_DEBUG_INFO(priv, "Using current RXON_ASSOC. Not resending.\n"); | |
233 | return 0; | |
234 | } | |
235 | ||
236 | rxon_assoc.flags = ctx->staging.flags; | |
237 | rxon_assoc.filter_flags = ctx->staging.filter_flags; | |
238 | rxon_assoc.ofdm_basic_rates = ctx->staging.ofdm_basic_rates; | |
239 | rxon_assoc.cck_basic_rates = ctx->staging.cck_basic_rates; | |
240 | rxon_assoc.reserved1 = 0; | |
241 | rxon_assoc.reserved2 = 0; | |
242 | rxon_assoc.reserved3 = 0; | |
243 | rxon_assoc.ofdm_ht_single_stream_basic_rates = | |
244 | ctx->staging.ofdm_ht_single_stream_basic_rates; | |
245 | rxon_assoc.ofdm_ht_dual_stream_basic_rates = | |
246 | ctx->staging.ofdm_ht_dual_stream_basic_rates; | |
247 | rxon_assoc.rx_chain_select_flags = ctx->staging.rx_chain; | |
248 | rxon_assoc.ofdm_ht_triple_stream_basic_rates = | |
249 | ctx->staging.ofdm_ht_triple_stream_basic_rates; | |
250 | rxon_assoc.acquisition_data = ctx->staging.acquisition_data; | |
251 | ||
e10a0533 | 252 | ret = iwl_dvm_send_cmd_pdu(priv, ctx->rxon_assoc_cmd, |
e419d62d | 253 | CMD_ASYNC, sizeof(rxon_assoc), &rxon_assoc); |
c3f6e9cf WYG |
254 | return ret; |
255 | } | |
256 | ||
dff96c1e MV |
257 | static u16 iwl_adjust_beacon_interval(u16 beacon_val, u16 max_beacon_val) |
258 | { | |
259 | u16 new_val; | |
260 | u16 beacon_factor; | |
261 | ||
262 | /* | |
263 | * If mac80211 hasn't given us a beacon interval, program | |
264 | * the default into the device (not checking this here | |
265 | * would cause the adjustment below to return the maximum | |
266 | * value, which may break PAN.) | |
267 | */ | |
268 | if (!beacon_val) | |
269 | return DEFAULT_BEACON_INTERVAL; | |
270 | ||
271 | /* | |
272 | * If the beacon interval we obtained from the peer | |
273 | * is too large, we'll have to wake up more often | |
274 | * (and in IBSS case, we'll beacon too much) | |
275 | * | |
276 | * For example, if max_beacon_val is 4096, and the | |
277 | * requested beacon interval is 7000, we'll have to | |
278 | * use 3500 to be able to wake up on the beacons. | |
279 | * | |
280 | * This could badly influence beacon detection stats. | |
281 | */ | |
282 | ||
283 | beacon_factor = (beacon_val + max_beacon_val) / max_beacon_val; | |
284 | new_val = beacon_val / beacon_factor; | |
285 | ||
286 | if (!new_val) | |
287 | new_val = max_beacon_val; | |
288 | ||
289 | return new_val; | |
290 | } | |
291 | ||
292 | static int iwl_send_rxon_timing(struct iwl_priv *priv, | |
293 | struct iwl_rxon_context *ctx) | |
294 | { | |
295 | u64 tsf; | |
296 | s32 interval_tm, rem; | |
297 | struct ieee80211_conf *conf = NULL; | |
298 | u16 beacon_int; | |
299 | struct ieee80211_vif *vif = ctx->vif; | |
300 | ||
301 | conf = &priv->hw->conf; | |
302 | ||
303 | lockdep_assert_held(&priv->mutex); | |
304 | ||
305 | memset(&ctx->timing, 0, sizeof(struct iwl_rxon_time_cmd)); | |
306 | ||
307 | ctx->timing.timestamp = cpu_to_le64(priv->timestamp); | |
308 | ctx->timing.listen_interval = cpu_to_le16(conf->listen_interval); | |
309 | ||
310 | beacon_int = vif ? vif->bss_conf.beacon_int : 0; | |
311 | ||
312 | /* | |
313 | * TODO: For IBSS we need to get atim_window from mac80211, | |
314 | * for now just always use 0 | |
315 | */ | |
316 | ctx->timing.atim_window = 0; | |
317 | ||
318 | if (ctx->ctxid == IWL_RXON_CTX_PAN && | |
319 | (!ctx->vif || ctx->vif->type != NL80211_IFTYPE_STATION) && | |
320 | iwl_is_associated(priv, IWL_RXON_CTX_BSS) && | |
321 | priv->contexts[IWL_RXON_CTX_BSS].vif && | |
322 | priv->contexts[IWL_RXON_CTX_BSS].vif->bss_conf.beacon_int) { | |
323 | ctx->timing.beacon_interval = | |
324 | priv->contexts[IWL_RXON_CTX_BSS].timing.beacon_interval; | |
325 | beacon_int = le16_to_cpu(ctx->timing.beacon_interval); | |
326 | } else if (ctx->ctxid == IWL_RXON_CTX_BSS && | |
327 | iwl_is_associated(priv, IWL_RXON_CTX_PAN) && | |
328 | priv->contexts[IWL_RXON_CTX_PAN].vif && | |
329 | priv->contexts[IWL_RXON_CTX_PAN].vif->bss_conf.beacon_int && | |
330 | (!iwl_is_associated_ctx(ctx) || !ctx->vif || | |
331 | !ctx->vif->bss_conf.beacon_int)) { | |
332 | ctx->timing.beacon_interval = | |
333 | priv->contexts[IWL_RXON_CTX_PAN].timing.beacon_interval; | |
334 | beacon_int = le16_to_cpu(ctx->timing.beacon_interval); | |
335 | } else { | |
336 | beacon_int = iwl_adjust_beacon_interval(beacon_int, | |
337 | IWL_MAX_UCODE_BEACON_INTERVAL * TIME_UNIT); | |
338 | ctx->timing.beacon_interval = cpu_to_le16(beacon_int); | |
339 | } | |
340 | ||
341 | ctx->beacon_int = beacon_int; | |
342 | ||
343 | tsf = priv->timestamp; /* tsf is modifed by do_div: copy it */ | |
344 | interval_tm = beacon_int * TIME_UNIT; | |
345 | rem = do_div(tsf, interval_tm); | |
346 | ctx->timing.beacon_init_val = cpu_to_le32(interval_tm - rem); | |
347 | ||
348 | ctx->timing.dtim_period = vif ? (vif->bss_conf.dtim_period ?: 1) : 1; | |
349 | ||
350 | IWL_DEBUG_ASSOC(priv, | |
351 | "beacon interval %d beacon timer %d beacon tim %d\n", | |
352 | le16_to_cpu(ctx->timing.beacon_interval), | |
353 | le32_to_cpu(ctx->timing.beacon_init_val), | |
354 | le16_to_cpu(ctx->timing.atim_window)); | |
355 | ||
356 | return iwl_dvm_send_cmd_pdu(priv, ctx->rxon_timing_cmd, | |
a1022927 | 357 | 0, sizeof(ctx->timing), &ctx->timing); |
dff96c1e MV |
358 | } |
359 | ||
c1821c95 WYG |
360 | static int iwlagn_rxon_disconn(struct iwl_priv *priv, |
361 | struct iwl_rxon_context *ctx) | |
362 | { | |
363 | int ret; | |
364 | struct iwl_rxon_cmd *active = (void *)&ctx->active; | |
365 | ||
2b9253d2 | 366 | if (ctx->ctxid == IWL_RXON_CTX_BSS) { |
c1821c95 | 367 | ret = iwlagn_disable_bss(priv, ctx, &ctx->staging); |
2b9253d2 | 368 | } else { |
c1821c95 | 369 | ret = iwlagn_disable_pan(priv, ctx, &ctx->staging); |
2b9253d2 JB |
370 | if (ret) |
371 | return ret; | |
372 | if (ctx->vif) { | |
373 | ret = iwl_send_rxon_timing(priv, ctx); | |
374 | if (ret) { | |
375 | IWL_ERR(priv, "Failed to send timing (%d)!\n", ret); | |
376 | return ret; | |
377 | } | |
378 | ret = iwlagn_disconn_pan(priv, ctx, &ctx->staging); | |
379 | } | |
380 | } | |
c1821c95 WYG |
381 | if (ret) |
382 | return ret; | |
383 | ||
384 | /* | |
385 | * Un-assoc RXON clears the station table and WEP | |
386 | * keys, so we have to restore those afterwards. | |
387 | */ | |
388 | iwl_clear_ucode_stations(priv, ctx); | |
f775aa06 JB |
389 | /* update -- might need P2P now */ |
390 | iwl_update_bcast_station(priv, ctx); | |
c1821c95 WYG |
391 | iwl_restore_stations(priv, ctx); |
392 | ret = iwl_restore_default_wep_keys(priv, ctx); | |
393 | if (ret) { | |
394 | IWL_ERR(priv, "Failed to restore WEP keys (%d)\n", ret); | |
395 | return ret; | |
396 | } | |
397 | ||
398 | memcpy(active, &ctx->staging, sizeof(*active)); | |
399 | return 0; | |
400 | } | |
401 | ||
e6a62a6e MV |
402 | static int iwl_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force) |
403 | { | |
404 | int ret; | |
405 | s8 prev_tx_power; | |
406 | bool defer; | |
407 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; | |
408 | ||
bfb45f54 DS |
409 | if (priv->calib_disabled & IWL_TX_POWER_CALIB_DISABLED) |
410 | return 0; | |
411 | ||
e6a62a6e MV |
412 | lockdep_assert_held(&priv->mutex); |
413 | ||
414 | if (priv->tx_power_user_lmt == tx_power && !force) | |
415 | return 0; | |
416 | ||
417 | if (tx_power < IWLAGN_TX_POWER_TARGET_POWER_MIN) { | |
418 | IWL_WARN(priv, | |
419 | "Requested user TXPOWER %d below lower limit %d.\n", | |
420 | tx_power, | |
421 | IWLAGN_TX_POWER_TARGET_POWER_MIN); | |
422 | return -EINVAL; | |
423 | } | |
424 | ||
b7998c8b | 425 | if (tx_power > DIV_ROUND_UP(priv->nvm_data->max_tx_pwr_half_dbm, 2)) { |
e6a62a6e MV |
426 | IWL_WARN(priv, |
427 | "Requested user TXPOWER %d above upper limit %d.\n", | |
b7998c8b | 428 | tx_power, priv->nvm_data->max_tx_pwr_half_dbm); |
e6a62a6e MV |
429 | return -EINVAL; |
430 | } | |
431 | ||
432 | if (!iwl_is_ready_rf(priv)) | |
433 | return -EIO; | |
434 | ||
435 | /* scan complete and commit_rxon use tx_power_next value, | |
436 | * it always need to be updated for newest request */ | |
437 | priv->tx_power_next = tx_power; | |
438 | ||
439 | /* do not set tx power when scanning or channel changing */ | |
440 | defer = test_bit(STATUS_SCANNING, &priv->status) || | |
441 | memcmp(&ctx->active, &ctx->staging, sizeof(ctx->staging)); | |
442 | if (defer && !force) { | |
443 | IWL_DEBUG_INFO(priv, "Deferring tx power set\n"); | |
444 | return 0; | |
445 | } | |
446 | ||
447 | prev_tx_power = priv->tx_power_user_lmt; | |
448 | priv->tx_power_user_lmt = tx_power; | |
449 | ||
450 | ret = iwlagn_send_tx_power(priv); | |
451 | ||
452 | /* if fail to set tx_power, restore the orig. tx power */ | |
453 | if (ret) { | |
454 | priv->tx_power_user_lmt = prev_tx_power; | |
455 | priv->tx_power_next = prev_tx_power; | |
456 | } | |
457 | return ret; | |
458 | } | |
459 | ||
c1821c95 WYG |
460 | static int iwlagn_rxon_connect(struct iwl_priv *priv, |
461 | struct iwl_rxon_context *ctx) | |
462 | { | |
463 | int ret; | |
464 | struct iwl_rxon_cmd *active = (void *)&ctx->active; | |
465 | ||
466 | /* RXON timing must be before associated RXON */ | |
2b9253d2 JB |
467 | if (ctx->ctxid == IWL_RXON_CTX_BSS) { |
468 | ret = iwl_send_rxon_timing(priv, ctx); | |
469 | if (ret) { | |
470 | IWL_ERR(priv, "Failed to send timing (%d)!\n", ret); | |
471 | return ret; | |
472 | } | |
c1821c95 WYG |
473 | } |
474 | /* QoS info may be cleared by previous un-assoc RXON */ | |
475 | iwlagn_update_qos(priv, ctx); | |
476 | ||
477 | /* | |
478 | * We'll run into this code path when beaconing is | |
479 | * enabled, but then we also need to send the beacon | |
480 | * to the device. | |
481 | */ | |
482 | if (ctx->vif && (ctx->vif->type == NL80211_IFTYPE_AP)) { | |
483 | ret = iwlagn_update_beacon(priv, ctx->vif); | |
484 | if (ret) { | |
485 | IWL_ERR(priv, | |
486 | "Error sending required beacon (%d)!\n", | |
487 | ret); | |
488 | return ret; | |
489 | } | |
490 | } | |
491 | ||
492 | priv->start_calib = 0; | |
493 | /* | |
494 | * Apply the new configuration. | |
495 | * | |
496 | * Associated RXON doesn't clear the station table in uCode, | |
497 | * so we don't need to restore stations etc. after this. | |
498 | */ | |
a1022927 | 499 | ret = iwl_dvm_send_cmd_pdu(priv, ctx->rxon_cmd, 0, |
c1821c95 WYG |
500 | sizeof(struct iwl_rxon_cmd), &ctx->staging); |
501 | if (ret) { | |
502 | IWL_ERR(priv, "Error setting new RXON (%d)\n", ret); | |
503 | return ret; | |
504 | } | |
505 | memcpy(active, &ctx->staging, sizeof(*active)); | |
506 | ||
c1821c95 WYG |
507 | /* IBSS beacon needs to be sent after setting assoc */ |
508 | if (ctx->vif && (ctx->vif->type == NL80211_IFTYPE_ADHOC)) | |
509 | if (iwlagn_update_beacon(priv, ctx->vif)) | |
510 | IWL_ERR(priv, "Error sending IBSS beacon\n"); | |
511 | iwl_init_sensitivity(priv); | |
512 | ||
513 | /* | |
514 | * If we issue a new RXON command which required a tune then | |
515 | * we must send a new TXPOWER command or we won't be able to | |
516 | * Tx any frames. | |
517 | * | |
518 | * It's expected we set power here if channel is changing. | |
519 | */ | |
520 | ret = iwl_set_tx_power(priv, priv->tx_power_next, true); | |
521 | if (ret) { | |
522 | IWL_ERR(priv, "Error sending TX power (%d)\n", ret); | |
523 | return ret; | |
524 | } | |
15b3f3b0 | 525 | |
107ef97a | 526 | if (ctx->vif && ctx->vif->type == NL80211_IFTYPE_STATION && |
2152268f | 527 | priv->cfg->ht_params && priv->cfg->ht_params->smps_mode) |
15b3f3b0 | 528 | ieee80211_request_smps(ctx->vif, |
2152268f | 529 | priv->cfg->ht_params->smps_mode); |
15b3f3b0 | 530 | |
c1821c95 WYG |
531 | return 0; |
532 | } | |
533 | ||
e505c433 WYG |
534 | int iwlagn_set_pan_params(struct iwl_priv *priv) |
535 | { | |
536 | struct iwl_wipan_params_cmd cmd; | |
537 | struct iwl_rxon_context *ctx_bss, *ctx_pan; | |
538 | int slot0 = 300, slot1 = 0; | |
539 | int ret; | |
540 | ||
a18f61bc | 541 | if (priv->valid_contexts == BIT(IWL_RXON_CTX_BSS)) |
e505c433 WYG |
542 | return 0; |
543 | ||
544 | BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2); | |
545 | ||
b1eea297 | 546 | lockdep_assert_held(&priv->mutex); |
e505c433 WYG |
547 | |
548 | ctx_bss = &priv->contexts[IWL_RXON_CTX_BSS]; | |
549 | ctx_pan = &priv->contexts[IWL_RXON_CTX_PAN]; | |
550 | ||
551 | /* | |
552 | * If the PAN context is inactive, then we don't need | |
553 | * to update the PAN parameters, the last thing we'll | |
554 | * have done before it goes inactive is making the PAN | |
555 | * parameters be WLAN-only. | |
556 | */ | |
557 | if (!ctx_pan->is_active) | |
558 | return 0; | |
559 | ||
560 | memset(&cmd, 0, sizeof(cmd)); | |
561 | ||
562 | /* only 2 slots are currently allowed */ | |
563 | cmd.num_slots = 2; | |
564 | ||
565 | cmd.slots[0].type = 0; /* BSS */ | |
566 | cmd.slots[1].type = 1; /* PAN */ | |
567 | ||
da4f87f0 | 568 | if (ctx_bss->vif && ctx_pan->vif) { |
bbb05cb5 | 569 | int bcnint = ctx_pan->beacon_int; |
e505c433 WYG |
570 | int dtim = ctx_pan->vif->bss_conf.dtim_period ?: 1; |
571 | ||
572 | /* should be set, but seems unused?? */ | |
573 | cmd.flags |= cpu_to_le16(IWL_WIPAN_PARAMS_FLG_SLOTTED_MODE); | |
574 | ||
575 | if (ctx_pan->vif->type == NL80211_IFTYPE_AP && | |
576 | bcnint && | |
bbb05cb5 | 577 | bcnint != ctx_bss->beacon_int) { |
e505c433 WYG |
578 | IWL_ERR(priv, |
579 | "beacon intervals don't match (%d, %d)\n", | |
bbb05cb5 | 580 | ctx_bss->beacon_int, ctx_pan->beacon_int); |
e505c433 WYG |
581 | } else |
582 | bcnint = max_t(int, bcnint, | |
bbb05cb5 | 583 | ctx_bss->beacon_int); |
e505c433 WYG |
584 | if (!bcnint) |
585 | bcnint = DEFAULT_BEACON_INTERVAL; | |
586 | slot0 = bcnint / 2; | |
587 | slot1 = bcnint - slot0; | |
588 | ||
83626404 | 589 | if (test_bit(STATUS_SCAN_HW, &priv->status) || |
e505c433 WYG |
590 | (!ctx_bss->vif->bss_conf.idle && |
591 | !ctx_bss->vif->bss_conf.assoc)) { | |
592 | slot0 = dtim * bcnint * 3 - IWL_MIN_SLOT_TIME; | |
593 | slot1 = IWL_MIN_SLOT_TIME; | |
594 | } else if (!ctx_pan->vif->bss_conf.idle && | |
595 | !ctx_pan->vif->bss_conf.assoc) { | |
325a7ddf | 596 | slot1 = dtim * bcnint * 3 - IWL_MIN_SLOT_TIME; |
e505c433 WYG |
597 | slot0 = IWL_MIN_SLOT_TIME; |
598 | } | |
599 | } else if (ctx_pan->vif) { | |
600 | slot0 = 0; | |
601 | slot1 = max_t(int, 1, ctx_pan->vif->bss_conf.dtim_period) * | |
bbb05cb5 | 602 | ctx_pan->beacon_int; |
e505c433 WYG |
603 | slot1 = max_t(int, DEFAULT_BEACON_INTERVAL, slot1); |
604 | ||
83626404 | 605 | if (test_bit(STATUS_SCAN_HW, &priv->status)) { |
e505c433 WYG |
606 | slot0 = slot1 * 3 - IWL_MIN_SLOT_TIME; |
607 | slot1 = IWL_MIN_SLOT_TIME; | |
608 | } | |
609 | } | |
610 | ||
611 | cmd.slots[0].width = cpu_to_le16(slot0); | |
612 | cmd.slots[1].width = cpu_to_le16(slot1); | |
613 | ||
a1022927 | 614 | ret = iwl_dvm_send_cmd_pdu(priv, REPLY_WIPAN_PARAMS, 0, |
e505c433 WYG |
615 | sizeof(cmd), &cmd); |
616 | if (ret) | |
617 | IWL_ERR(priv, "Error setting PAN parameters (%d)\n", ret); | |
618 | ||
619 | return ret; | |
620 | } | |
621 | ||
dd64173e MV |
622 | static void _iwl_set_rxon_ht(struct iwl_priv *priv, |
623 | struct iwl_ht_config *ht_conf, | |
624 | struct iwl_rxon_context *ctx) | |
625 | { | |
626 | struct iwl_rxon_cmd *rxon = &ctx->staging; | |
627 | ||
628 | if (!ctx->ht.enabled) { | |
629 | rxon->flags &= ~(RXON_FLG_CHANNEL_MODE_MSK | | |
630 | RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK | | |
631 | RXON_FLG_HT40_PROT_MSK | | |
632 | RXON_FLG_HT_PROT_MSK); | |
633 | return; | |
634 | } | |
635 | ||
636 | /* FIXME: if the definition of ht.protection changed, the "translation" | |
637 | * will be needed for rxon->flags | |
638 | */ | |
639 | rxon->flags |= cpu_to_le32(ctx->ht.protection << | |
640 | RXON_FLG_HT_OPERATING_MODE_POS); | |
641 | ||
642 | /* Set up channel bandwidth: | |
643 | * 20 MHz only, 20/40 mixed or pure 40 if ht40 ok */ | |
644 | /* clear the HT channel mode before set the mode */ | |
645 | rxon->flags &= ~(RXON_FLG_CHANNEL_MODE_MSK | | |
646 | RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK); | |
647 | if (iwl_is_ht40_tx_allowed(priv, ctx, NULL)) { | |
648 | /* pure ht40 */ | |
649 | if (ctx->ht.protection == | |
650 | IEEE80211_HT_OP_MODE_PROTECTION_20MHZ) { | |
651 | rxon->flags |= RXON_FLG_CHANNEL_MODE_PURE_40; | |
652 | /* | |
653 | * Note: control channel is opposite of extension | |
654 | * channel | |
655 | */ | |
656 | switch (ctx->ht.extension_chan_offset) { | |
657 | case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: | |
658 | rxon->flags &= | |
659 | ~RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK; | |
660 | break; | |
661 | case IEEE80211_HT_PARAM_CHA_SEC_BELOW: | |
662 | rxon->flags |= | |
663 | RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK; | |
664 | break; | |
665 | } | |
666 | } else { | |
667 | /* | |
668 | * Note: control channel is opposite of extension | |
669 | * channel | |
670 | */ | |
671 | switch (ctx->ht.extension_chan_offset) { | |
672 | case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: | |
673 | rxon->flags &= | |
674 | ~(RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK); | |
675 | rxon->flags |= RXON_FLG_CHANNEL_MODE_MIXED; | |
676 | break; | |
677 | case IEEE80211_HT_PARAM_CHA_SEC_BELOW: | |
678 | rxon->flags |= RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK; | |
679 | rxon->flags |= RXON_FLG_CHANNEL_MODE_MIXED; | |
680 | break; | |
681 | case IEEE80211_HT_PARAM_CHA_SEC_NONE: | |
682 | default: | |
683 | /* | |
684 | * channel location only valid if in Mixed | |
685 | * mode | |
686 | */ | |
687 | IWL_ERR(priv, | |
688 | "invalid extension channel offset\n"); | |
689 | break; | |
690 | } | |
691 | } | |
692 | } else { | |
693 | rxon->flags |= RXON_FLG_CHANNEL_MODE_LEGACY; | |
694 | } | |
695 | ||
696 | iwlagn_set_rxon_chain(priv, ctx); | |
697 | ||
698 | IWL_DEBUG_ASSOC(priv, "rxon flags 0x%X operation mode :0x%X " | |
699 | "extension channel offset 0x%x\n", | |
700 | le32_to_cpu(rxon->flags), ctx->ht.protection, | |
701 | ctx->ht.extension_chan_offset); | |
702 | } | |
703 | ||
704 | void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_config *ht_conf) | |
705 | { | |
706 | struct iwl_rxon_context *ctx; | |
707 | ||
708 | for_each_context(priv, ctx) | |
709 | _iwl_set_rxon_ht(priv, ht_conf, ctx); | |
710 | } | |
711 | ||
fedfa87a MV |
712 | /** |
713 | * iwl_set_rxon_channel - Set the band and channel values in staging RXON | |
714 | * @ch: requested channel as a pointer to struct ieee80211_channel | |
715 | ||
716 | * NOTE: Does not commit to the hardware; it sets appropriate bit fields | |
717 | * in the staging RXON flag structure based on the ch->band | |
718 | */ | |
719 | void iwl_set_rxon_channel(struct iwl_priv *priv, struct ieee80211_channel *ch, | |
720 | struct iwl_rxon_context *ctx) | |
721 | { | |
722 | enum ieee80211_band band = ch->band; | |
723 | u16 channel = ch->hw_value; | |
724 | ||
725 | if ((le16_to_cpu(ctx->staging.channel) == channel) && | |
726 | (priv->band == band)) | |
727 | return; | |
728 | ||
729 | ctx->staging.channel = cpu_to_le16(channel); | |
730 | if (band == IEEE80211_BAND_5GHZ) | |
731 | ctx->staging.flags &= ~RXON_FLG_BAND_24G_MSK; | |
732 | else | |
733 | ctx->staging.flags |= RXON_FLG_BAND_24G_MSK; | |
734 | ||
735 | priv->band = band; | |
736 | ||
737 | IWL_DEBUG_INFO(priv, "Staging channel set to %d [%d]\n", channel, band); | |
738 | ||
739 | } | |
740 | ||
50319f74 MV |
741 | void iwl_set_flags_for_band(struct iwl_priv *priv, |
742 | struct iwl_rxon_context *ctx, | |
743 | enum ieee80211_band band, | |
744 | struct ieee80211_vif *vif) | |
745 | { | |
746 | if (band == IEEE80211_BAND_5GHZ) { | |
747 | ctx->staging.flags &= | |
748 | ~(RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK | |
749 | | RXON_FLG_CCK_MSK); | |
750 | ctx->staging.flags |= RXON_FLG_SHORT_SLOT_MSK; | |
751 | } else { | |
752 | /* Copied from iwl_post_associate() */ | |
753 | if (vif && vif->bss_conf.use_short_slot) | |
754 | ctx->staging.flags |= RXON_FLG_SHORT_SLOT_MSK; | |
755 | else | |
756 | ctx->staging.flags &= ~RXON_FLG_SHORT_SLOT_MSK; | |
757 | ||
758 | ctx->staging.flags |= RXON_FLG_BAND_24G_MSK; | |
759 | ctx->staging.flags |= RXON_FLG_AUTO_DETECT_MSK; | |
760 | ctx->staging.flags &= ~RXON_FLG_CCK_MSK; | |
761 | } | |
762 | } | |
763 | ||
354a4530 MV |
764 | static void iwl_set_rxon_hwcrypto(struct iwl_priv *priv, |
765 | struct iwl_rxon_context *ctx, int hw_decrypt) | |
766 | { | |
767 | struct iwl_rxon_cmd *rxon = &ctx->staging; | |
768 | ||
769 | if (hw_decrypt) | |
770 | rxon->filter_flags &= ~RXON_FILTER_DIS_DECRYPT_MSK; | |
771 | else | |
772 | rxon->filter_flags |= RXON_FILTER_DIS_DECRYPT_MSK; | |
773 | ||
774 | } | |
775 | ||
8931b576 MV |
776 | /* validate RXON structure is valid */ |
777 | static int iwl_check_rxon_cmd(struct iwl_priv *priv, | |
778 | struct iwl_rxon_context *ctx) | |
779 | { | |
780 | struct iwl_rxon_cmd *rxon = &ctx->staging; | |
781 | u32 errors = 0; | |
782 | ||
783 | if (rxon->flags & RXON_FLG_BAND_24G_MSK) { | |
784 | if (rxon->flags & RXON_FLG_TGJ_NARROW_BAND_MSK) { | |
785 | IWL_WARN(priv, "check 2.4G: wrong narrow\n"); | |
786 | errors |= BIT(0); | |
787 | } | |
788 | if (rxon->flags & RXON_FLG_RADAR_DETECT_MSK) { | |
789 | IWL_WARN(priv, "check 2.4G: wrong radar\n"); | |
790 | errors |= BIT(1); | |
791 | } | |
792 | } else { | |
793 | if (!(rxon->flags & RXON_FLG_SHORT_SLOT_MSK)) { | |
794 | IWL_WARN(priv, "check 5.2G: not short slot!\n"); | |
795 | errors |= BIT(2); | |
796 | } | |
797 | if (rxon->flags & RXON_FLG_CCK_MSK) { | |
798 | IWL_WARN(priv, "check 5.2G: CCK!\n"); | |
799 | errors |= BIT(3); | |
800 | } | |
801 | } | |
802 | if ((rxon->node_addr[0] | rxon->bssid_addr[0]) & 0x1) { | |
803 | IWL_WARN(priv, "mac/bssid mcast!\n"); | |
804 | errors |= BIT(4); | |
805 | } | |
806 | ||
807 | /* make sure basic rates 6Mbps and 1Mbps are supported */ | |
808 | if ((rxon->ofdm_basic_rates & IWL_RATE_6M_MASK) == 0 && | |
809 | (rxon->cck_basic_rates & IWL_RATE_1M_MASK) == 0) { | |
810 | IWL_WARN(priv, "neither 1 nor 6 are basic\n"); | |
811 | errors |= BIT(5); | |
812 | } | |
813 | ||
814 | if (le16_to_cpu(rxon->assoc_id) > 2007) { | |
815 | IWL_WARN(priv, "aid > 2007\n"); | |
816 | errors |= BIT(6); | |
817 | } | |
818 | ||
819 | if ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK)) | |
820 | == (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK)) { | |
821 | IWL_WARN(priv, "CCK and short slot\n"); | |
822 | errors |= BIT(7); | |
823 | } | |
824 | ||
825 | if ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK)) | |
826 | == (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK)) { | |
3c6acb61 | 827 | IWL_WARN(priv, "CCK and auto detect\n"); |
8931b576 MV |
828 | errors |= BIT(8); |
829 | } | |
830 | ||
831 | if ((rxon->flags & (RXON_FLG_AUTO_DETECT_MSK | | |
832 | RXON_FLG_TGG_PROTECT_MSK)) == | |
833 | RXON_FLG_TGG_PROTECT_MSK) { | |
834 | IWL_WARN(priv, "TGg but no auto-detect\n"); | |
835 | errors |= BIT(9); | |
836 | } | |
837 | ||
838 | if (rxon->channel == 0) { | |
839 | IWL_WARN(priv, "zero channel is invalid\n"); | |
840 | errors |= BIT(10); | |
841 | } | |
842 | ||
843 | WARN(errors, "Invalid RXON (%#x), channel %d", | |
844 | errors, le16_to_cpu(rxon->channel)); | |
845 | ||
846 | return errors ? -EINVAL : 0; | |
847 | } | |
848 | ||
55620921 MV |
849 | /** |
850 | * iwl_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed | |
851 | * @priv: staging_rxon is compared to active_rxon | |
852 | * | |
853 | * If the RXON structure is changing enough to require a new tune, | |
854 | * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that | |
855 | * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required. | |
856 | */ | |
aca86268 JB |
857 | static int iwl_full_rxon_required(struct iwl_priv *priv, |
858 | struct iwl_rxon_context *ctx) | |
55620921 MV |
859 | { |
860 | const struct iwl_rxon_cmd *staging = &ctx->staging; | |
861 | const struct iwl_rxon_cmd *active = &ctx->active; | |
862 | ||
863 | #define CHK(cond) \ | |
864 | if ((cond)) { \ | |
865 | IWL_DEBUG_INFO(priv, "need full RXON - " #cond "\n"); \ | |
866 | return 1; \ | |
867 | } | |
868 | ||
869 | #define CHK_NEQ(c1, c2) \ | |
870 | if ((c1) != (c2)) { \ | |
871 | IWL_DEBUG_INFO(priv, "need full RXON - " \ | |
872 | #c1 " != " #c2 " - %d != %d\n", \ | |
873 | (c1), (c2)); \ | |
874 | return 1; \ | |
875 | } | |
876 | ||
877 | /* These items are only settable from the full RXON command */ | |
878 | CHK(!iwl_is_associated_ctx(ctx)); | |
2e42e474 JP |
879 | CHK(!ether_addr_equal(staging->bssid_addr, active->bssid_addr)); |
880 | CHK(!ether_addr_equal(staging->node_addr, active->node_addr)); | |
881 | CHK(!ether_addr_equal(staging->wlap_bssid_addr, | |
882 | active->wlap_bssid_addr)); | |
55620921 MV |
883 | CHK_NEQ(staging->dev_type, active->dev_type); |
884 | CHK_NEQ(staging->channel, active->channel); | |
885 | CHK_NEQ(staging->air_propagation, active->air_propagation); | |
886 | CHK_NEQ(staging->ofdm_ht_single_stream_basic_rates, | |
887 | active->ofdm_ht_single_stream_basic_rates); | |
888 | CHK_NEQ(staging->ofdm_ht_dual_stream_basic_rates, | |
889 | active->ofdm_ht_dual_stream_basic_rates); | |
890 | CHK_NEQ(staging->ofdm_ht_triple_stream_basic_rates, | |
891 | active->ofdm_ht_triple_stream_basic_rates); | |
892 | CHK_NEQ(staging->assoc_id, active->assoc_id); | |
893 | ||
894 | /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can | |
895 | * be updated with the RXON_ASSOC command -- however only some | |
896 | * flag transitions are allowed using RXON_ASSOC */ | |
897 | ||
898 | /* Check if we are not switching bands */ | |
899 | CHK_NEQ(staging->flags & RXON_FLG_BAND_24G_MSK, | |
900 | active->flags & RXON_FLG_BAND_24G_MSK); | |
901 | ||
902 | /* Check if we are switching association toggle */ | |
903 | CHK_NEQ(staging->filter_flags & RXON_FILTER_ASSOC_MSK, | |
904 | active->filter_flags & RXON_FILTER_ASSOC_MSK); | |
905 | ||
906 | #undef CHK | |
907 | #undef CHK_NEQ | |
908 | ||
909 | return 0; | |
910 | } | |
911 | ||
4d323acd MV |
912 | #ifdef CONFIG_IWLWIFI_DEBUG |
913 | void iwl_print_rx_config_cmd(struct iwl_priv *priv, | |
914 | enum iwl_rxon_context_id ctxid) | |
915 | { | |
916 | struct iwl_rxon_context *ctx = &priv->contexts[ctxid]; | |
917 | struct iwl_rxon_cmd *rxon = &ctx->staging; | |
918 | ||
919 | IWL_DEBUG_RADIO(priv, "RX CONFIG:\n"); | |
920 | iwl_print_hex_dump(priv, IWL_DL_RADIO, (u8 *) rxon, sizeof(*rxon)); | |
921 | IWL_DEBUG_RADIO(priv, "u16 channel: 0x%x\n", | |
922 | le16_to_cpu(rxon->channel)); | |
923 | IWL_DEBUG_RADIO(priv, "u32 flags: 0x%08X\n", | |
924 | le32_to_cpu(rxon->flags)); | |
925 | IWL_DEBUG_RADIO(priv, "u32 filter_flags: 0x%08x\n", | |
926 | le32_to_cpu(rxon->filter_flags)); | |
927 | IWL_DEBUG_RADIO(priv, "u8 dev_type: 0x%x\n", rxon->dev_type); | |
928 | IWL_DEBUG_RADIO(priv, "u8 ofdm_basic_rates: 0x%02x\n", | |
929 | rxon->ofdm_basic_rates); | |
930 | IWL_DEBUG_RADIO(priv, "u8 cck_basic_rates: 0x%02x\n", | |
931 | rxon->cck_basic_rates); | |
932 | IWL_DEBUG_RADIO(priv, "u8[6] node_addr: %pM\n", rxon->node_addr); | |
933 | IWL_DEBUG_RADIO(priv, "u8[6] bssid_addr: %pM\n", rxon->bssid_addr); | |
934 | IWL_DEBUG_RADIO(priv, "u16 assoc_id: 0x%x\n", | |
935 | le16_to_cpu(rxon->assoc_id)); | |
936 | } | |
937 | #endif | |
938 | ||
9543c5f3 JB |
939 | static void iwl_calc_basic_rates(struct iwl_priv *priv, |
940 | struct iwl_rxon_context *ctx) | |
941 | { | |
942 | int lowest_present_ofdm = 100; | |
943 | int lowest_present_cck = 100; | |
944 | u8 cck = 0; | |
945 | u8 ofdm = 0; | |
946 | ||
947 | if (ctx->vif) { | |
948 | struct ieee80211_supported_band *sband; | |
949 | unsigned long basic = ctx->vif->bss_conf.basic_rates; | |
950 | int i; | |
951 | ||
675a0b04 | 952 | sband = priv->hw->wiphy->bands[priv->hw->conf.chandef.chan->band]; |
9543c5f3 JB |
953 | |
954 | for_each_set_bit(i, &basic, BITS_PER_LONG) { | |
955 | int hw = sband->bitrates[i].hw_value; | |
956 | if (hw >= IWL_FIRST_OFDM_RATE) { | |
957 | ofdm |= BIT(hw - IWL_FIRST_OFDM_RATE); | |
958 | if (lowest_present_ofdm > hw) | |
959 | lowest_present_ofdm = hw; | |
960 | } else { | |
961 | BUILD_BUG_ON(IWL_FIRST_CCK_RATE != 0); | |
962 | ||
963 | cck |= BIT(hw); | |
964 | if (lowest_present_cck > hw) | |
965 | lowest_present_cck = hw; | |
966 | } | |
967 | } | |
968 | } | |
969 | ||
970 | /* | |
971 | * Now we've got the basic rates as bitmaps in the ofdm and cck | |
972 | * variables. This isn't sufficient though, as there might not | |
973 | * be all the right rates in the bitmap. E.g. if the only basic | |
974 | * rates are 5.5 Mbps and 11 Mbps, we still need to add 1 Mbps | |
975 | * and 6 Mbps because the 802.11-2007 standard says in 9.6: | |
976 | * | |
977 | * [...] a STA responding to a received frame shall transmit | |
978 | * its Control Response frame [...] at the highest rate in the | |
979 | * BSSBasicRateSet parameter that is less than or equal to the | |
980 | * rate of the immediately previous frame in the frame exchange | |
981 | * sequence ([...]) and that is of the same modulation class | |
982 | * ([...]) as the received frame. If no rate contained in the | |
983 | * BSSBasicRateSet parameter meets these conditions, then the | |
984 | * control frame sent in response to a received frame shall be | |
985 | * transmitted at the highest mandatory rate of the PHY that is | |
986 | * less than or equal to the rate of the received frame, and | |
987 | * that is of the same modulation class as the received frame. | |
988 | * | |
989 | * As a consequence, we need to add all mandatory rates that are | |
990 | * lower than all of the basic rates to these bitmaps. | |
991 | */ | |
992 | ||
993 | if (IWL_RATE_24M_INDEX < lowest_present_ofdm) | |
994 | ofdm |= IWL_RATE_24M_MASK >> IWL_FIRST_OFDM_RATE; | |
995 | if (IWL_RATE_12M_INDEX < lowest_present_ofdm) | |
996 | ofdm |= IWL_RATE_12M_MASK >> IWL_FIRST_OFDM_RATE; | |
997 | /* 6M already there or needed so always add */ | |
998 | ofdm |= IWL_RATE_6M_MASK >> IWL_FIRST_OFDM_RATE; | |
999 | ||
1000 | /* | |
1001 | * CCK is a bit more complex with DSSS vs. HR/DSSS vs. ERP. | |
1002 | * Note, however: | |
1003 | * - if no CCK rates are basic, it must be ERP since there must | |
1004 | * be some basic rates at all, so they're OFDM => ERP PHY | |
1005 | * (or we're in 5 GHz, and the cck bitmap will never be used) | |
1006 | * - if 11M is a basic rate, it must be ERP as well, so add 5.5M | |
1007 | * - if 5.5M is basic, 1M and 2M are mandatory | |
1008 | * - if 2M is basic, 1M is mandatory | |
1009 | * - if 1M is basic, that's the only valid ACK rate. | |
1010 | * As a consequence, it's not as complicated as it sounds, just add | |
1011 | * any lower rates to the ACK rate bitmap. | |
1012 | */ | |
5edd0b94 EG |
1013 | if (IWL_RATE_11M_INDEX < lowest_present_cck) |
1014 | cck |= IWL_RATE_11M_MASK >> IWL_FIRST_CCK_RATE; | |
1015 | if (IWL_RATE_5M_INDEX < lowest_present_cck) | |
1016 | cck |= IWL_RATE_5M_MASK >> IWL_FIRST_CCK_RATE; | |
1017 | if (IWL_RATE_2M_INDEX < lowest_present_cck) | |
1018 | cck |= IWL_RATE_2M_MASK >> IWL_FIRST_CCK_RATE; | |
9543c5f3 JB |
1019 | /* 1M already there or needed so always add */ |
1020 | cck |= IWL_RATE_1M_MASK >> IWL_FIRST_CCK_RATE; | |
1021 | ||
1022 | IWL_DEBUG_RATE(priv, "Set basic rates cck:0x%.2x ofdm:0x%.2x\n", | |
1023 | cck, ofdm); | |
1024 | ||
1025 | /* "basic_rates" is a misnomer here -- should be called ACK rates */ | |
1026 | ctx->staging.cck_basic_rates = cck; | |
1027 | ctx->staging.ofdm_basic_rates = ofdm; | |
1028 | } | |
1029 | ||
2295c66b JB |
1030 | /** |
1031 | * iwlagn_commit_rxon - commit staging_rxon to hardware | |
1032 | * | |
1033 | * The RXON command in staging_rxon is committed to the hardware and | |
1034 | * the active_rxon structure is updated with the new data. This | |
1035 | * function correctly transitions out of the RXON_ASSOC_MSK state if | |
1036 | * a HW tune is required based on the RXON structure changes. | |
c1821c95 WYG |
1037 | * |
1038 | * The connect/disconnect flow should be as the following: | |
1039 | * | |
1040 | * 1. make sure send RXON command with association bit unset if not connect | |
1041 | * this should include the channel and the band for the candidate | |
1042 | * to be connected to | |
1043 | * 2. Add Station before RXON association with the AP | |
1044 | * 3. RXON_timing has to send before RXON for connection | |
1045 | * 4. full RXON command - associated bit set | |
1046 | * 5. use RXON_ASSOC command to update any flags changes | |
2295c66b JB |
1047 | */ |
1048 | int iwlagn_commit_rxon(struct iwl_priv *priv, struct iwl_rxon_context *ctx) | |
1049 | { | |
1050 | /* cast away the const for active_rxon in this function */ | |
1051 | struct iwl_rxon_cmd *active = (void *)&ctx->active; | |
2295c66b JB |
1052 | bool new_assoc = !!(ctx->staging.filter_flags & RXON_FILTER_ASSOC_MSK); |
1053 | int ret; | |
1054 | ||
b1eea297 | 1055 | lockdep_assert_held(&priv->mutex); |
2295c66b | 1056 | |
83626404 | 1057 | if (!iwl_is_alive(priv)) |
2295c66b JB |
1058 | return -EBUSY; |
1059 | ||
1060 | /* This function hardcodes a bunch of dual-mode assumptions */ | |
1061 | BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2); | |
1062 | ||
1063 | if (!ctx->is_active) | |
1064 | return 0; | |
1065 | ||
1066 | /* always get timestamp with Rx frame */ | |
1067 | ctx->staging.flags |= RXON_FLG_TSF2HOST_MSK; | |
1068 | ||
9543c5f3 JB |
1069 | /* recalculate basic rates */ |
1070 | iwl_calc_basic_rates(priv, ctx); | |
1071 | ||
f47f46d7 EG |
1072 | /* |
1073 | * force CTS-to-self frames protection if RTS-CTS is not preferred | |
1074 | * one aggregation protection method | |
1075 | */ | |
1076 | if (!priv->hw_params.use_rts_for_aggregation) | |
1077 | ctx->staging.flags |= RXON_FLG_SELF_CTS_EN; | |
1078 | ||
2295c66b JB |
1079 | if ((ctx->vif && ctx->vif->bss_conf.use_short_slot) || |
1080 | !(ctx->staging.flags & RXON_FLG_BAND_24G_MSK)) | |
1081 | ctx->staging.flags |= RXON_FLG_SHORT_SLOT_MSK; | |
1082 | else | |
1083 | ctx->staging.flags &= ~RXON_FLG_SHORT_SLOT_MSK; | |
1084 | ||
522376d2 | 1085 | iwl_print_rx_config_cmd(priv, ctx->ctxid); |
2295c66b JB |
1086 | ret = iwl_check_rxon_cmd(priv, ctx); |
1087 | if (ret) { | |
1088 | IWL_ERR(priv, "Invalid RXON configuration. Not committing.\n"); | |
1089 | return -EINVAL; | |
1090 | } | |
1091 | ||
1092 | /* | |
1093 | * receive commit_rxon request | |
1094 | * abort any previous channel switch if still in process | |
1095 | */ | |
83626404 | 1096 | if (test_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status) && |
6f213ff1 | 1097 | (priv->switch_channel != ctx->staging.channel)) { |
2295c66b | 1098 | IWL_DEBUG_11H(priv, "abort channel switch on %d\n", |
6f213ff1 | 1099 | le16_to_cpu(priv->switch_channel)); |
2295c66b JB |
1100 | iwl_chswitch_done(priv, false); |
1101 | } | |
1102 | ||
1103 | /* | |
1104 | * If we don't need to send a full RXON, we can use | |
1105 | * iwl_rxon_assoc_cmd which is used to reconfigure filter | |
1106 | * and other flags for the current radio configuration. | |
1107 | */ | |
1108 | if (!iwl_full_rxon_required(priv, ctx)) { | |
c3f6e9cf | 1109 | ret = iwlagn_send_rxon_assoc(priv, ctx); |
2295c66b JB |
1110 | if (ret) { |
1111 | IWL_ERR(priv, "Error setting RXON_ASSOC (%d)\n", ret); | |
1112 | return ret; | |
1113 | } | |
1114 | ||
1115 | memcpy(active, &ctx->staging, sizeof(*active)); | |
891db881 WYG |
1116 | /* |
1117 | * We do not commit tx power settings while channel changing, | |
1118 | * do it now if after settings changed. | |
1119 | */ | |
1120 | iwl_set_tx_power(priv, priv->tx_power_next, false); | |
15b3f3b0 WYG |
1121 | |
1122 | /* make sure we are in the right PS state */ | |
1123 | iwl_power_update_mode(priv, true); | |
1124 | ||
2295c66b JB |
1125 | return 0; |
1126 | } | |
1127 | ||
65de7e84 | 1128 | iwl_set_rxon_hwcrypto(priv, ctx, !iwlwifi_mod_params.sw_crypto); |
2295c66b JB |
1129 | |
1130 | IWL_DEBUG_INFO(priv, | |
1131 | "Going to commit RXON\n" | |
1132 | " * with%s RXON_FILTER_ASSOC_MSK\n" | |
1133 | " * channel = %d\n" | |
1134 | " * bssid = %pM\n", | |
1135 | (new_assoc ? "" : "out"), | |
1136 | le16_to_cpu(ctx->staging.channel), | |
1137 | ctx->staging.bssid_addr); | |
1138 | ||
1139 | /* | |
52d980c0 JB |
1140 | * Always clear associated first, but with the correct config. |
1141 | * This is required as for example station addition for the | |
1142 | * AP station must be done after the BSSID is set to correctly | |
1143 | * set up filters in the device. | |
2295c66b | 1144 | */ |
3083d03c WYG |
1145 | ret = iwlagn_rxon_disconn(priv, ctx); |
1146 | if (ret) | |
1147 | return ret; | |
2295c66b | 1148 | |
e3f10cea WYG |
1149 | ret = iwlagn_set_pan_params(priv); |
1150 | if (ret) | |
1151 | return ret; | |
2b9253d2 | 1152 | |
c1821c95 WYG |
1153 | if (new_assoc) |
1154 | return iwlagn_rxon_connect(priv, ctx); | |
2295c66b JB |
1155 | |
1156 | return 0; | |
1157 | } | |
1158 | ||
34a5b4b6 | 1159 | void iwlagn_config_ht40(struct ieee80211_conf *conf, |
85220d71 | 1160 | struct iwl_rxon_context *ctx) |
34a5b4b6 WYG |
1161 | { |
1162 | if (conf_is_ht40_minus(conf)) { | |
1163 | ctx->ht.extension_chan_offset = | |
1164 | IEEE80211_HT_PARAM_CHA_SEC_BELOW; | |
1165 | ctx->ht.is_40mhz = true; | |
1166 | } else if (conf_is_ht40_plus(conf)) { | |
1167 | ctx->ht.extension_chan_offset = | |
1168 | IEEE80211_HT_PARAM_CHA_SEC_ABOVE; | |
1169 | ctx->ht.is_40mhz = true; | |
1170 | } else { | |
1171 | ctx->ht.extension_chan_offset = | |
1172 | IEEE80211_HT_PARAM_CHA_SEC_NONE; | |
1173 | ctx->ht.is_40mhz = false; | |
1174 | } | |
1175 | } | |
1176 | ||
2295c66b JB |
1177 | int iwlagn_mac_config(struct ieee80211_hw *hw, u32 changed) |
1178 | { | |
d0f76d68 | 1179 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
2295c66b JB |
1180 | struct iwl_rxon_context *ctx; |
1181 | struct ieee80211_conf *conf = &hw->conf; | |
675a0b04 | 1182 | struct ieee80211_channel *channel = conf->chandef.chan; |
2295c66b JB |
1183 | int ret = 0; |
1184 | ||
0ca24daf | 1185 | IWL_DEBUG_MAC80211(priv, "enter: changed %#x\n", changed); |
2295c66b | 1186 | |
b1eea297 | 1187 | mutex_lock(&priv->mutex); |
2295c66b | 1188 | |
83626404 | 1189 | if (unlikely(test_bit(STATUS_SCANNING, &priv->status))) { |
2295c66b JB |
1190 | IWL_DEBUG_MAC80211(priv, "leave - scanning\n"); |
1191 | goto out; | |
1192 | } | |
1193 | ||
83626404 | 1194 | if (!iwl_is_ready(priv)) { |
2295c66b JB |
1195 | IWL_DEBUG_MAC80211(priv, "leave - not ready\n"); |
1196 | goto out; | |
1197 | } | |
1198 | ||
1199 | if (changed & (IEEE80211_CONF_CHANGE_SMPS | | |
1200 | IEEE80211_CONF_CHANGE_CHANNEL)) { | |
1201 | /* mac80211 uses static for non-HT which is what we want */ | |
1202 | priv->current_ht_config.smps = conf->smps_mode; | |
1203 | ||
1204 | /* | |
1205 | * Recalculate chain counts. | |
1206 | * | |
1207 | * If monitor mode is enabled then mac80211 will | |
1208 | * set up the SM PS mode to OFF if an HT channel is | |
1209 | * configured. | |
1210 | */ | |
e3f10cea WYG |
1211 | for_each_context(priv, ctx) |
1212 | iwlagn_set_rxon_chain(priv, ctx); | |
2295c66b JB |
1213 | } |
1214 | ||
1215 | if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { | |
2295c66b JB |
1216 | for_each_context(priv, ctx) { |
1217 | /* Configure HT40 channels */ | |
7caa2316 | 1218 | if (ctx->ht.enabled != conf_is_ht(conf)) |
35a6eb36 | 1219 | ctx->ht.enabled = conf_is_ht(conf); |
35a6eb36 | 1220 | |
2295c66b | 1221 | if (ctx->ht.enabled) { |
34a5b4b6 WYG |
1222 | /* if HT40 is used, it should not change |
1223 | * after associated except channel switch */ | |
78feb35b WYG |
1224 | if (!ctx->ht.is_40mhz || |
1225 | !iwl_is_associated_ctx(ctx)) | |
34a5b4b6 | 1226 | iwlagn_config_ht40(conf, ctx); |
2295c66b JB |
1227 | } else |
1228 | ctx->ht.is_40mhz = false; | |
1229 | ||
1230 | /* | |
1231 | * Default to no protection. Protection mode will | |
1232 | * later be set from BSS config in iwl_ht_conf | |
1233 | */ | |
1234 | ctx->ht.protection = IEEE80211_HT_OP_MODE_PROTECTION_NONE; | |
1235 | ||
1236 | /* if we are switching from ht to 2.4 clear flags | |
1237 | * from any ht related info since 2.4 does not | |
1238 | * support ht */ | |
1239 | if (le16_to_cpu(ctx->staging.channel) != | |
1240 | channel->hw_value) | |
1241 | ctx->staging.flags = 0; | |
1242 | ||
1243 | iwl_set_rxon_channel(priv, channel, ctx); | |
1244 | iwl_set_rxon_ht(priv, &priv->current_ht_config); | |
1245 | ||
1246 | iwl_set_flags_for_band(priv, ctx, channel->band, | |
1247 | ctx->vif); | |
1248 | } | |
1249 | ||
2295c66b | 1250 | iwl_update_bcast_stations(priv); |
2295c66b JB |
1251 | } |
1252 | ||
1253 | if (changed & (IEEE80211_CONF_CHANGE_PS | | |
1254 | IEEE80211_CONF_CHANGE_IDLE)) { | |
1255 | ret = iwl_power_update_mode(priv, false); | |
1256 | if (ret) | |
1257 | IWL_DEBUG_MAC80211(priv, "Error setting sleep level\n"); | |
1258 | } | |
1259 | ||
1260 | if (changed & IEEE80211_CONF_CHANGE_POWER) { | |
1261 | IWL_DEBUG_MAC80211(priv, "TX Power old=%d new=%d\n", | |
1262 | priv->tx_power_user_lmt, conf->power_level); | |
1263 | ||
1264 | iwl_set_tx_power(priv, conf->power_level, false); | |
1265 | } | |
1266 | ||
1267 | for_each_context(priv, ctx) { | |
1268 | if (!memcmp(&ctx->staging, &ctx->active, sizeof(ctx->staging))) | |
1269 | continue; | |
1270 | iwlagn_commit_rxon(priv, ctx); | |
1271 | } | |
1272 | out: | |
b1eea297 | 1273 | mutex_unlock(&priv->mutex); |
770c72c4 WYG |
1274 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
1275 | ||
2295c66b JB |
1276 | return ret; |
1277 | } | |
1278 | ||
aca86268 JB |
1279 | static void iwlagn_check_needed_chains(struct iwl_priv *priv, |
1280 | struct iwl_rxon_context *ctx, | |
1281 | struct ieee80211_bss_conf *bss_conf) | |
2295c66b JB |
1282 | { |
1283 | struct ieee80211_vif *vif = ctx->vif; | |
1284 | struct iwl_rxon_context *tmp; | |
1285 | struct ieee80211_sta *sta; | |
1286 | struct iwl_ht_config *ht_conf = &priv->current_ht_config; | |
850bedcc | 1287 | struct ieee80211_sta_ht_cap *ht_cap; |
2295c66b JB |
1288 | bool need_multiple; |
1289 | ||
b1eea297 | 1290 | lockdep_assert_held(&priv->mutex); |
2295c66b JB |
1291 | |
1292 | switch (vif->type) { | |
1293 | case NL80211_IFTYPE_STATION: | |
1294 | rcu_read_lock(); | |
1295 | sta = ieee80211_find_sta(vif, bss_conf->bssid); | |
850bedcc | 1296 | if (!sta) { |
2295c66b JB |
1297 | /* |
1298 | * If at all, this can only happen through a race | |
1299 | * when the AP disconnects us while we're still | |
1300 | * setting up the connection, in that case mac80211 | |
1301 | * will soon tell us about that. | |
1302 | */ | |
1303 | need_multiple = false; | |
850bedcc JB |
1304 | rcu_read_unlock(); |
1305 | break; | |
1306 | } | |
1307 | ||
1308 | ht_cap = &sta->ht_cap; | |
1309 | ||
1310 | need_multiple = true; | |
1311 | ||
1312 | /* | |
1313 | * If the peer advertises no support for receiving 2 and 3 | |
1314 | * stream MCS rates, it can't be transmitting them either. | |
1315 | */ | |
1316 | if (ht_cap->mcs.rx_mask[1] == 0 && | |
1317 | ht_cap->mcs.rx_mask[2] == 0) { | |
1318 | need_multiple = false; | |
1319 | } else if (!(ht_cap->mcs.tx_params & | |
1320 | IEEE80211_HT_MCS_TX_DEFINED)) { | |
1321 | /* If it can't TX MCS at all ... */ | |
1322 | need_multiple = false; | |
1323 | } else if (ht_cap->mcs.tx_params & | |
1324 | IEEE80211_HT_MCS_TX_RX_DIFF) { | |
1325 | int maxstreams; | |
1326 | ||
1327 | /* | |
1328 | * But if it can receive them, it might still not | |
1329 | * be able to transmit them, which is what we need | |
1330 | * to check here -- so check the number of streams | |
1331 | * it advertises for TX (if different from RX). | |
1332 | */ | |
1333 | ||
1334 | maxstreams = (ht_cap->mcs.tx_params & | |
1335 | IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK); | |
1336 | maxstreams >>= | |
1337 | IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT; | |
1338 | maxstreams += 1; | |
1339 | ||
1340 | if (maxstreams <= 1) | |
1341 | need_multiple = false; | |
2295c66b | 1342 | } |
850bedcc | 1343 | |
2295c66b JB |
1344 | rcu_read_unlock(); |
1345 | break; | |
1346 | case NL80211_IFTYPE_ADHOC: | |
1347 | /* currently */ | |
1348 | need_multiple = false; | |
1349 | break; | |
1350 | default: | |
1351 | /* only AP really */ | |
1352 | need_multiple = true; | |
1353 | break; | |
1354 | } | |
1355 | ||
1356 | ctx->ht_need_multiple_chains = need_multiple; | |
1357 | ||
1358 | if (!need_multiple) { | |
1359 | /* check all contexts */ | |
1360 | for_each_context(priv, tmp) { | |
1361 | if (!tmp->vif) | |
1362 | continue; | |
1363 | if (tmp->ht_need_multiple_chains) { | |
1364 | need_multiple = true; | |
1365 | break; | |
1366 | } | |
1367 | } | |
1368 | } | |
1369 | ||
1370 | ht_conf->single_chain_sufficient = !need_multiple; | |
1371 | } | |
1372 | ||
aca86268 | 1373 | static void iwlagn_chain_noise_reset(struct iwl_priv *priv) |
5c3d29fc DF |
1374 | { |
1375 | struct iwl_chain_noise_data *data = &priv->chain_noise_data; | |
1376 | int ret; | |
1377 | ||
b28b6dfe | 1378 | if (priv->calib_disabled & IWL_CHAIN_NOISE_CALIB_DISABLED) |
bfb45f54 DS |
1379 | return; |
1380 | ||
5c3d29fc DF |
1381 | if ((data->state == IWL_CHAIN_NOISE_ALIVE) && |
1382 | iwl_is_any_associated(priv)) { | |
1383 | struct iwl_calib_chain_noise_reset_cmd cmd; | |
1384 | ||
1385 | /* clear data for chain noise calibration algorithm */ | |
1386 | data->chain_noise_a = 0; | |
1387 | data->chain_noise_b = 0; | |
1388 | data->chain_noise_c = 0; | |
1389 | data->chain_signal_a = 0; | |
1390 | data->chain_signal_b = 0; | |
1391 | data->chain_signal_c = 0; | |
1392 | data->beacon_count = 0; | |
1393 | ||
1394 | memset(&cmd, 0, sizeof(cmd)); | |
1395 | iwl_set_calib_hdr(&cmd.hdr, | |
898ed67b | 1396 | priv->phy_calib_chain_noise_reset_cmd); |
e10a0533 | 1397 | ret = iwl_dvm_send_cmd_pdu(priv, |
5c3d29fc | 1398 | REPLY_PHY_CALIBRATION_CMD, |
a1022927 | 1399 | 0, sizeof(cmd), &cmd); |
5c3d29fc DF |
1400 | if (ret) |
1401 | IWL_ERR(priv, | |
1402 | "Could not send REPLY_PHY_CALIBRATION_CMD\n"); | |
1403 | data->state = IWL_CHAIN_NOISE_ACCUMULATE; | |
1404 | IWL_DEBUG_CALIB(priv, "Run chain_noise_calibrate\n"); | |
1405 | } | |
1406 | } | |
1407 | ||
2295c66b JB |
1408 | void iwlagn_bss_info_changed(struct ieee80211_hw *hw, |
1409 | struct ieee80211_vif *vif, | |
1410 | struct ieee80211_bss_conf *bss_conf, | |
1411 | u32 changes) | |
1412 | { | |
d0f76d68 | 1413 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
2295c66b JB |
1414 | struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif); |
1415 | int ret; | |
1416 | bool force = false; | |
1417 | ||
b1eea297 | 1418 | mutex_lock(&priv->mutex); |
2295c66b | 1419 | |
b8730b40 JB |
1420 | if (changes & BSS_CHANGED_IDLE && bss_conf->idle) { |
1421 | /* | |
1422 | * If we go idle, then clearly no "passive-no-rx" | |
1423 | * workaround is needed any more, this is a reset. | |
1424 | */ | |
1425 | iwlagn_lift_passive_no_rx(priv); | |
1426 | } | |
1427 | ||
83626404 | 1428 | if (unlikely(!iwl_is_ready(priv))) { |
14a085e7 | 1429 | IWL_DEBUG_MAC80211(priv, "leave - not ready\n"); |
b1eea297 | 1430 | mutex_unlock(&priv->mutex); |
ae0b693c SZ |
1431 | return; |
1432 | } | |
1433 | ||
1434 | if (unlikely(!ctx->vif)) { | |
1435 | IWL_DEBUG_MAC80211(priv, "leave - vif is NULL\n"); | |
b1eea297 | 1436 | mutex_unlock(&priv->mutex); |
893654de JB |
1437 | return; |
1438 | } | |
1439 | ||
2295c66b JB |
1440 | if (changes & BSS_CHANGED_BEACON_INT) |
1441 | force = true; | |
1442 | ||
1443 | if (changes & BSS_CHANGED_QOS) { | |
1444 | ctx->qos_data.qos_active = bss_conf->qos; | |
1445 | iwlagn_update_qos(priv, ctx); | |
1446 | } | |
1447 | ||
1448 | ctx->staging.assoc_id = cpu_to_le16(vif->bss_conf.aid); | |
1449 | if (vif->bss_conf.use_short_preamble) | |
1450 | ctx->staging.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; | |
1451 | else | |
1452 | ctx->staging.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; | |
1453 | ||
1454 | if (changes & BSS_CHANGED_ASSOC) { | |
1455 | if (bss_conf->assoc) { | |
8c358bcd | 1456 | priv->timestamp = bss_conf->sync_tsf; |
2295c66b JB |
1457 | ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK; |
1458 | } else { | |
1459 | ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
c8ac61cf JB |
1460 | |
1461 | if (ctx->ctxid == IWL_RXON_CTX_BSS) | |
1462 | priv->have_rekey_data = false; | |
2295c66b | 1463 | } |
207ecc5e MV |
1464 | |
1465 | iwlagn_bt_coex_rssi_monitor(priv); | |
2295c66b JB |
1466 | } |
1467 | ||
1468 | if (ctx->ht.enabled) { | |
1469 | ctx->ht.protection = bss_conf->ht_operation_mode & | |
1470 | IEEE80211_HT_OP_MODE_PROTECTION; | |
1471 | ctx->ht.non_gf_sta_present = !!(bss_conf->ht_operation_mode & | |
1472 | IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT); | |
1473 | iwlagn_check_needed_chains(priv, ctx, bss_conf); | |
b2769b84 | 1474 | iwl_set_rxon_ht(priv, &priv->current_ht_config); |
2295c66b JB |
1475 | } |
1476 | ||
e3f10cea | 1477 | iwlagn_set_rxon_chain(priv, ctx); |
2295c66b JB |
1478 | |
1479 | if (bss_conf->use_cts_prot && (priv->band != IEEE80211_BAND_5GHZ)) | |
1480 | ctx->staging.flags |= RXON_FLG_TGG_PROTECT_MSK; | |
1481 | else | |
1482 | ctx->staging.flags &= ~RXON_FLG_TGG_PROTECT_MSK; | |
1483 | ||
f47f46d7 EG |
1484 | if (bss_conf->use_cts_prot) |
1485 | ctx->staging.flags |= RXON_FLG_SELF_CTS_EN; | |
1486 | else | |
1487 | ctx->staging.flags &= ~RXON_FLG_SELF_CTS_EN; | |
1488 | ||
2295c66b JB |
1489 | memcpy(ctx->staging.bssid_addr, bss_conf->bssid, ETH_ALEN); |
1490 | ||
1491 | if (vif->type == NL80211_IFTYPE_AP || | |
1492 | vif->type == NL80211_IFTYPE_ADHOC) { | |
1493 | if (vif->bss_conf.enable_beacon) { | |
1494 | ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK; | |
1495 | priv->beacon_ctx = ctx; | |
1496 | } else { | |
1497 | ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
1498 | priv->beacon_ctx = NULL; | |
1499 | } | |
1500 | } | |
1501 | ||
758f555f MV |
1502 | /* |
1503 | * If the ucode decides to do beacon filtering before | |
1504 | * association, it will lose beacons that are needed | |
1505 | * before sending frames out on passive channels. This | |
1506 | * causes association failures on those channels. Enable | |
1507 | * receiving beacons in such cases. | |
1508 | */ | |
1509 | ||
1510 | if (vif->type == NL80211_IFTYPE_STATION) { | |
1511 | if (!bss_conf->assoc) | |
1512 | ctx->staging.filter_flags |= RXON_FILTER_BCON_AWARE_MSK; | |
1513 | else | |
1514 | ctx->staging.filter_flags &= | |
1515 | ~RXON_FILTER_BCON_AWARE_MSK; | |
1516 | } | |
1517 | ||
2295c66b JB |
1518 | if (force || memcmp(&ctx->staging, &ctx->active, sizeof(ctx->staging))) |
1519 | iwlagn_commit_rxon(priv, ctx); | |
1520 | ||
8da8e628 JB |
1521 | if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc) { |
1522 | /* | |
1523 | * The chain noise calibration will enable PM upon | |
1524 | * completion. If calibration has already been run | |
1525 | * then we need to enable power management here. | |
1526 | */ | |
1527 | if (priv->chain_noise_data.state == IWL_CHAIN_NOISE_DONE) | |
1528 | iwl_power_update_mode(priv, false); | |
1529 | ||
1530 | /* Enable RX differential gain and sensitivity calibrations */ | |
bfb45f54 | 1531 | iwlagn_chain_noise_reset(priv); |
8da8e628 JB |
1532 | priv->start_calib = 1; |
1533 | } | |
1534 | ||
2295c66b JB |
1535 | if (changes & BSS_CHANGED_IBSS) { |
1536 | ret = iwlagn_manage_ibss_station(priv, vif, | |
1537 | bss_conf->ibss_joined); | |
1538 | if (ret) | |
1539 | IWL_ERR(priv, "failed to %s IBSS station %pM\n", | |
1540 | bss_conf->ibss_joined ? "add" : "remove", | |
1541 | bss_conf->bssid); | |
1542 | } | |
1543 | ||
739e42f4 | 1544 | if (changes & BSS_CHANGED_BEACON && priv->beacon_ctx == ctx) { |
bd50a8ab | 1545 | if (iwlagn_update_beacon(priv, vif)) |
739e42f4 | 1546 | IWL_ERR(priv, "Error updating beacon\n"); |
bd50a8ab JB |
1547 | } |
1548 | ||
b1eea297 | 1549 | mutex_unlock(&priv->mutex); |
2295c66b | 1550 | } |
ae79d23d JB |
1551 | |
1552 | void iwlagn_post_scan(struct iwl_priv *priv) | |
1553 | { | |
1554 | struct iwl_rxon_context *ctx; | |
1555 | ||
c2b821d7 WYG |
1556 | /* |
1557 | * We do not commit power settings while scan is pending, | |
1558 | * do it now if the settings changed. | |
1559 | */ | |
1560 | iwl_power_set_mode(priv, &priv->power_data.sleep_cmd_next, false); | |
1561 | iwl_set_tx_power(priv, priv->tx_power_next, false); | |
1562 | ||
ae79d23d JB |
1563 | /* |
1564 | * Since setting the RXON may have been deferred while | |
1565 | * performing the scan, fire one off if needed | |
1566 | */ | |
1567 | for_each_context(priv, ctx) | |
1568 | if (memcmp(&ctx->staging, &ctx->active, sizeof(ctx->staging))) | |
1569 | iwlagn_commit_rxon(priv, ctx); | |
1570 | ||
e3f10cea | 1571 | iwlagn_set_pan_params(priv); |
ae79d23d | 1572 | } |