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2295c66b JB |
1 | /****************************************************************************** |
2 | * | |
fb4961db | 3 | * Copyright(c) 2003 - 2012 Intel Corporation. All rights reserved. |
2295c66b JB |
4 | * |
5 | * This program is free software; you can redistribute it and/or modify it | |
6 | * under the terms of version 2 of the GNU General Public License as | |
7 | * published by the Free Software Foundation. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
12 | * more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License along with | |
15 | * this program; if not, write to the Free Software Foundation, Inc., | |
16 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA | |
17 | * | |
18 | * The full GNU General Public License is included in this distribution in the | |
19 | * file called LICENSE. | |
20 | * | |
21 | * Contact Information: | |
22 | * Intel Linux Wireless <ilw@linux.intel.com> | |
23 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | |
24 | * | |
25 | *****************************************************************************/ | |
26 | ||
55620921 | 27 | #include <linux/etherdevice.h> |
bdfbf092 | 28 | #include "iwl-trans.h" |
65de7e84 | 29 | #include "iwl-modparams.h" |
1023fdc4 JB |
30 | #include "dev.h" |
31 | #include "agn.h" | |
32 | #include "calib.h" | |
2295c66b | 33 | |
47042ac2 MV |
34 | /* |
35 | * initialize rxon structure with default values from eeprom | |
36 | */ | |
37 | void iwl_connection_init_rx_config(struct iwl_priv *priv, | |
38 | struct iwl_rxon_context *ctx) | |
39 | { | |
47042ac2 MV |
40 | memset(&ctx->staging, 0, sizeof(ctx->staging)); |
41 | ||
42 | if (!ctx->vif) { | |
43 | ctx->staging.dev_type = ctx->unused_devtype; | |
44 | } else | |
45 | switch (ctx->vif->type) { | |
46 | case NL80211_IFTYPE_AP: | |
47 | ctx->staging.dev_type = ctx->ap_devtype; | |
48 | break; | |
49 | ||
50 | case NL80211_IFTYPE_STATION: | |
51 | ctx->staging.dev_type = ctx->station_devtype; | |
52 | ctx->staging.filter_flags = RXON_FILTER_ACCEPT_GRP_MSK; | |
53 | break; | |
54 | ||
55 | case NL80211_IFTYPE_ADHOC: | |
56 | ctx->staging.dev_type = ctx->ibss_devtype; | |
57 | ctx->staging.flags = RXON_FLG_SHORT_PREAMBLE_MSK; | |
58 | ctx->staging.filter_flags = RXON_FILTER_BCON_AWARE_MSK | | |
59 | RXON_FILTER_ACCEPT_GRP_MSK; | |
60 | break; | |
61 | ||
57897726 JB |
62 | case NL80211_IFTYPE_MONITOR: |
63 | ctx->staging.dev_type = RXON_DEV_TYPE_SNIFFER; | |
64 | break; | |
65 | ||
47042ac2 MV |
66 | default: |
67 | IWL_ERR(priv, "Unsupported interface type %d\n", | |
68 | ctx->vif->type); | |
69 | break; | |
70 | } | |
71 | ||
72 | #if 0 | |
73 | /* TODO: Figure out when short_preamble would be set and cache from | |
74 | * that */ | |
75 | if (!hw_to_local(priv->hw)->short_preamble) | |
76 | ctx->staging.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; | |
77 | else | |
78 | ctx->staging.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; | |
79 | #endif | |
80 | ||
7ad580c2 JB |
81 | ctx->staging.channel = cpu_to_le16(priv->hw->conf.channel->hw_value); |
82 | priv->band = priv->hw->conf.channel->band; | |
47042ac2 MV |
83 | |
84 | iwl_set_flags_for_band(priv, ctx, priv->band, ctx->vif); | |
85 | ||
47042ac2 MV |
86 | /* clear both MIX and PURE40 mode flag */ |
87 | ctx->staging.flags &= ~(RXON_FLG_CHANNEL_MODE_MIXED | | |
88 | RXON_FLG_CHANNEL_MODE_PURE_40); | |
89 | if (ctx->vif) | |
90 | memcpy(ctx->staging.node_addr, ctx->vif->addr, ETH_ALEN); | |
91 | ||
92 | ctx->staging.ofdm_ht_single_stream_basic_rates = 0xff; | |
93 | ctx->staging.ofdm_ht_dual_stream_basic_rates = 0xff; | |
94 | ctx->staging.ofdm_ht_triple_stream_basic_rates = 0xff; | |
95 | } | |
96 | ||
2295c66b JB |
97 | static int iwlagn_disable_bss(struct iwl_priv *priv, |
98 | struct iwl_rxon_context *ctx, | |
99 | struct iwl_rxon_cmd *send) | |
100 | { | |
101 | __le32 old_filter = send->filter_flags; | |
102 | int ret; | |
103 | ||
104 | send->filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
e10a0533 | 105 | ret = iwl_dvm_send_cmd_pdu(priv, ctx->rxon_cmd, |
e419d62d | 106 | CMD_SYNC, sizeof(*send), send); |
2295c66b JB |
107 | |
108 | send->filter_flags = old_filter; | |
109 | ||
110 | if (ret) | |
b36b110c TP |
111 | IWL_DEBUG_QUIET_RFKILL(priv, |
112 | "Error clearing ASSOC_MSK on BSS (%d)\n", ret); | |
2295c66b JB |
113 | |
114 | return ret; | |
115 | } | |
116 | ||
117 | static int iwlagn_disable_pan(struct iwl_priv *priv, | |
118 | struct iwl_rxon_context *ctx, | |
119 | struct iwl_rxon_cmd *send) | |
120 | { | |
311dce71 | 121 | struct iwl_notification_wait disable_wait; |
2295c66b JB |
122 | __le32 old_filter = send->filter_flags; |
123 | u8 old_dev_type = send->dev_type; | |
124 | int ret; | |
db662d47 JB |
125 | static const u8 deactivate_cmd[] = { |
126 | REPLY_WIPAN_DEACTIVATION_COMPLETE | |
127 | }; | |
2295c66b | 128 | |
4bd14dd5 | 129 | iwl_init_notification_wait(&priv->notif_wait, &disable_wait, |
db662d47 | 130 | deactivate_cmd, ARRAY_SIZE(deactivate_cmd), |
4bd14dd5 | 131 | NULL, NULL); |
311dce71 | 132 | |
2295c66b JB |
133 | send->filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
134 | send->dev_type = RXON_DEV_TYPE_P2P; | |
e10a0533 | 135 | ret = iwl_dvm_send_cmd_pdu(priv, ctx->rxon_cmd, |
e419d62d | 136 | CMD_SYNC, sizeof(*send), send); |
2295c66b JB |
137 | |
138 | send->filter_flags = old_filter; | |
139 | send->dev_type = old_dev_type; | |
140 | ||
311dce71 | 141 | if (ret) { |
2295c66b | 142 | IWL_ERR(priv, "Error disabling PAN (%d)\n", ret); |
4bd14dd5 | 143 | iwl_remove_notification(&priv->notif_wait, &disable_wait); |
311dce71 | 144 | } else { |
4bd14dd5 JB |
145 | ret = iwl_wait_notification(&priv->notif_wait, |
146 | &disable_wait, HZ); | |
a8674a1e | 147 | if (ret) |
311dce71 JB |
148 | IWL_ERR(priv, "Timed out waiting for PAN disable\n"); |
149 | } | |
2295c66b JB |
150 | |
151 | return ret; | |
152 | } | |
153 | ||
2b9253d2 JB |
154 | static int iwlagn_disconn_pan(struct iwl_priv *priv, |
155 | struct iwl_rxon_context *ctx, | |
156 | struct iwl_rxon_cmd *send) | |
157 | { | |
158 | __le32 old_filter = send->filter_flags; | |
159 | int ret; | |
160 | ||
161 | send->filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
e10a0533 | 162 | ret = iwl_dvm_send_cmd_pdu(priv, ctx->rxon_cmd, CMD_SYNC, |
e419d62d | 163 | sizeof(*send), send); |
2b9253d2 JB |
164 | |
165 | send->filter_flags = old_filter; | |
166 | ||
167 | return ret; | |
168 | } | |
169 | ||
aca86268 JB |
170 | static void iwlagn_update_qos(struct iwl_priv *priv, |
171 | struct iwl_rxon_context *ctx) | |
f4115d46 SZ |
172 | { |
173 | int ret; | |
174 | ||
175 | if (!ctx->is_active) | |
176 | return; | |
177 | ||
178 | ctx->qos_data.def_qos_parm.qos_flags = 0; | |
179 | ||
180 | if (ctx->qos_data.qos_active) | |
181 | ctx->qos_data.def_qos_parm.qos_flags |= | |
182 | QOS_PARAM_FLG_UPDATE_EDCA_MSK; | |
183 | ||
184 | if (ctx->ht.enabled) | |
185 | ctx->qos_data.def_qos_parm.qos_flags |= QOS_PARAM_FLG_TGN_MSK; | |
186 | ||
0dcf50ca | 187 | IWL_DEBUG_INFO(priv, "send QoS cmd with Qos active=%d FLAGS=0x%X\n", |
f4115d46 SZ |
188 | ctx->qos_data.qos_active, |
189 | ctx->qos_data.def_qos_parm.qos_flags); | |
190 | ||
e10a0533 | 191 | ret = iwl_dvm_send_cmd_pdu(priv, ctx->qos_cmd, CMD_SYNC, |
f4115d46 SZ |
192 | sizeof(struct iwl_qosparam_cmd), |
193 | &ctx->qos_data.def_qos_parm); | |
194 | if (ret) | |
b36b110c | 195 | IWL_DEBUG_QUIET_RFKILL(priv, "Failed to update QoS\n"); |
f4115d46 SZ |
196 | } |
197 | ||
aca86268 JB |
198 | static int iwlagn_update_beacon(struct iwl_priv *priv, |
199 | struct ieee80211_vif *vif) | |
bd50a8ab | 200 | { |
b1eea297 | 201 | lockdep_assert_held(&priv->mutex); |
bd50a8ab JB |
202 | |
203 | dev_kfree_skb(priv->beacon_skb); | |
204 | priv->beacon_skb = ieee80211_beacon_get(priv->hw, vif); | |
205 | if (!priv->beacon_skb) | |
206 | return -ENOMEM; | |
207 | return iwlagn_send_beacon_cmd(priv); | |
208 | } | |
209 | ||
c3f6e9cf | 210 | static int iwlagn_send_rxon_assoc(struct iwl_priv *priv, |
aca86268 | 211 | struct iwl_rxon_context *ctx) |
c3f6e9cf WYG |
212 | { |
213 | int ret = 0; | |
89e746b2 | 214 | struct iwl_rxon_assoc_cmd rxon_assoc; |
c3f6e9cf WYG |
215 | const struct iwl_rxon_cmd *rxon1 = &ctx->staging; |
216 | const struct iwl_rxon_cmd *rxon2 = &ctx->active; | |
217 | ||
218 | if ((rxon1->flags == rxon2->flags) && | |
219 | (rxon1->filter_flags == rxon2->filter_flags) && | |
220 | (rxon1->cck_basic_rates == rxon2->cck_basic_rates) && | |
221 | (rxon1->ofdm_ht_single_stream_basic_rates == | |
222 | rxon2->ofdm_ht_single_stream_basic_rates) && | |
223 | (rxon1->ofdm_ht_dual_stream_basic_rates == | |
224 | rxon2->ofdm_ht_dual_stream_basic_rates) && | |
225 | (rxon1->ofdm_ht_triple_stream_basic_rates == | |
226 | rxon2->ofdm_ht_triple_stream_basic_rates) && | |
227 | (rxon1->acquisition_data == rxon2->acquisition_data) && | |
228 | (rxon1->rx_chain == rxon2->rx_chain) && | |
229 | (rxon1->ofdm_basic_rates == rxon2->ofdm_basic_rates)) { | |
230 | IWL_DEBUG_INFO(priv, "Using current RXON_ASSOC. Not resending.\n"); | |
231 | return 0; | |
232 | } | |
233 | ||
234 | rxon_assoc.flags = ctx->staging.flags; | |
235 | rxon_assoc.filter_flags = ctx->staging.filter_flags; | |
236 | rxon_assoc.ofdm_basic_rates = ctx->staging.ofdm_basic_rates; | |
237 | rxon_assoc.cck_basic_rates = ctx->staging.cck_basic_rates; | |
238 | rxon_assoc.reserved1 = 0; | |
239 | rxon_assoc.reserved2 = 0; | |
240 | rxon_assoc.reserved3 = 0; | |
241 | rxon_assoc.ofdm_ht_single_stream_basic_rates = | |
242 | ctx->staging.ofdm_ht_single_stream_basic_rates; | |
243 | rxon_assoc.ofdm_ht_dual_stream_basic_rates = | |
244 | ctx->staging.ofdm_ht_dual_stream_basic_rates; | |
245 | rxon_assoc.rx_chain_select_flags = ctx->staging.rx_chain; | |
246 | rxon_assoc.ofdm_ht_triple_stream_basic_rates = | |
247 | ctx->staging.ofdm_ht_triple_stream_basic_rates; | |
248 | rxon_assoc.acquisition_data = ctx->staging.acquisition_data; | |
249 | ||
e10a0533 | 250 | ret = iwl_dvm_send_cmd_pdu(priv, ctx->rxon_assoc_cmd, |
e419d62d | 251 | CMD_ASYNC, sizeof(rxon_assoc), &rxon_assoc); |
c3f6e9cf WYG |
252 | return ret; |
253 | } | |
254 | ||
dff96c1e MV |
255 | static u16 iwl_adjust_beacon_interval(u16 beacon_val, u16 max_beacon_val) |
256 | { | |
257 | u16 new_val; | |
258 | u16 beacon_factor; | |
259 | ||
260 | /* | |
261 | * If mac80211 hasn't given us a beacon interval, program | |
262 | * the default into the device (not checking this here | |
263 | * would cause the adjustment below to return the maximum | |
264 | * value, which may break PAN.) | |
265 | */ | |
266 | if (!beacon_val) | |
267 | return DEFAULT_BEACON_INTERVAL; | |
268 | ||
269 | /* | |
270 | * If the beacon interval we obtained from the peer | |
271 | * is too large, we'll have to wake up more often | |
272 | * (and in IBSS case, we'll beacon too much) | |
273 | * | |
274 | * For example, if max_beacon_val is 4096, and the | |
275 | * requested beacon interval is 7000, we'll have to | |
276 | * use 3500 to be able to wake up on the beacons. | |
277 | * | |
278 | * This could badly influence beacon detection stats. | |
279 | */ | |
280 | ||
281 | beacon_factor = (beacon_val + max_beacon_val) / max_beacon_val; | |
282 | new_val = beacon_val / beacon_factor; | |
283 | ||
284 | if (!new_val) | |
285 | new_val = max_beacon_val; | |
286 | ||
287 | return new_val; | |
288 | } | |
289 | ||
290 | static int iwl_send_rxon_timing(struct iwl_priv *priv, | |
291 | struct iwl_rxon_context *ctx) | |
292 | { | |
293 | u64 tsf; | |
294 | s32 interval_tm, rem; | |
295 | struct ieee80211_conf *conf = NULL; | |
296 | u16 beacon_int; | |
297 | struct ieee80211_vif *vif = ctx->vif; | |
298 | ||
299 | conf = &priv->hw->conf; | |
300 | ||
301 | lockdep_assert_held(&priv->mutex); | |
302 | ||
303 | memset(&ctx->timing, 0, sizeof(struct iwl_rxon_time_cmd)); | |
304 | ||
305 | ctx->timing.timestamp = cpu_to_le64(priv->timestamp); | |
306 | ctx->timing.listen_interval = cpu_to_le16(conf->listen_interval); | |
307 | ||
308 | beacon_int = vif ? vif->bss_conf.beacon_int : 0; | |
309 | ||
310 | /* | |
311 | * TODO: For IBSS we need to get atim_window from mac80211, | |
312 | * for now just always use 0 | |
313 | */ | |
314 | ctx->timing.atim_window = 0; | |
315 | ||
316 | if (ctx->ctxid == IWL_RXON_CTX_PAN && | |
317 | (!ctx->vif || ctx->vif->type != NL80211_IFTYPE_STATION) && | |
318 | iwl_is_associated(priv, IWL_RXON_CTX_BSS) && | |
319 | priv->contexts[IWL_RXON_CTX_BSS].vif && | |
320 | priv->contexts[IWL_RXON_CTX_BSS].vif->bss_conf.beacon_int) { | |
321 | ctx->timing.beacon_interval = | |
322 | priv->contexts[IWL_RXON_CTX_BSS].timing.beacon_interval; | |
323 | beacon_int = le16_to_cpu(ctx->timing.beacon_interval); | |
324 | } else if (ctx->ctxid == IWL_RXON_CTX_BSS && | |
325 | iwl_is_associated(priv, IWL_RXON_CTX_PAN) && | |
326 | priv->contexts[IWL_RXON_CTX_PAN].vif && | |
327 | priv->contexts[IWL_RXON_CTX_PAN].vif->bss_conf.beacon_int && | |
328 | (!iwl_is_associated_ctx(ctx) || !ctx->vif || | |
329 | !ctx->vif->bss_conf.beacon_int)) { | |
330 | ctx->timing.beacon_interval = | |
331 | priv->contexts[IWL_RXON_CTX_PAN].timing.beacon_interval; | |
332 | beacon_int = le16_to_cpu(ctx->timing.beacon_interval); | |
333 | } else { | |
334 | beacon_int = iwl_adjust_beacon_interval(beacon_int, | |
335 | IWL_MAX_UCODE_BEACON_INTERVAL * TIME_UNIT); | |
336 | ctx->timing.beacon_interval = cpu_to_le16(beacon_int); | |
337 | } | |
338 | ||
339 | ctx->beacon_int = beacon_int; | |
340 | ||
341 | tsf = priv->timestamp; /* tsf is modifed by do_div: copy it */ | |
342 | interval_tm = beacon_int * TIME_UNIT; | |
343 | rem = do_div(tsf, interval_tm); | |
344 | ctx->timing.beacon_init_val = cpu_to_le32(interval_tm - rem); | |
345 | ||
346 | ctx->timing.dtim_period = vif ? (vif->bss_conf.dtim_period ?: 1) : 1; | |
347 | ||
348 | IWL_DEBUG_ASSOC(priv, | |
349 | "beacon interval %d beacon timer %d beacon tim %d\n", | |
350 | le16_to_cpu(ctx->timing.beacon_interval), | |
351 | le32_to_cpu(ctx->timing.beacon_init_val), | |
352 | le16_to_cpu(ctx->timing.atim_window)); | |
353 | ||
354 | return iwl_dvm_send_cmd_pdu(priv, ctx->rxon_timing_cmd, | |
355 | CMD_SYNC, sizeof(ctx->timing), &ctx->timing); | |
356 | } | |
357 | ||
c1821c95 WYG |
358 | static int iwlagn_rxon_disconn(struct iwl_priv *priv, |
359 | struct iwl_rxon_context *ctx) | |
360 | { | |
361 | int ret; | |
362 | struct iwl_rxon_cmd *active = (void *)&ctx->active; | |
363 | ||
2b9253d2 | 364 | if (ctx->ctxid == IWL_RXON_CTX_BSS) { |
c1821c95 | 365 | ret = iwlagn_disable_bss(priv, ctx, &ctx->staging); |
2b9253d2 | 366 | } else { |
c1821c95 | 367 | ret = iwlagn_disable_pan(priv, ctx, &ctx->staging); |
2b9253d2 JB |
368 | if (ret) |
369 | return ret; | |
370 | if (ctx->vif) { | |
371 | ret = iwl_send_rxon_timing(priv, ctx); | |
372 | if (ret) { | |
373 | IWL_ERR(priv, "Failed to send timing (%d)!\n", ret); | |
374 | return ret; | |
375 | } | |
376 | ret = iwlagn_disconn_pan(priv, ctx, &ctx->staging); | |
377 | } | |
378 | } | |
c1821c95 WYG |
379 | if (ret) |
380 | return ret; | |
381 | ||
382 | /* | |
383 | * Un-assoc RXON clears the station table and WEP | |
384 | * keys, so we have to restore those afterwards. | |
385 | */ | |
386 | iwl_clear_ucode_stations(priv, ctx); | |
f775aa06 JB |
387 | /* update -- might need P2P now */ |
388 | iwl_update_bcast_station(priv, ctx); | |
c1821c95 WYG |
389 | iwl_restore_stations(priv, ctx); |
390 | ret = iwl_restore_default_wep_keys(priv, ctx); | |
391 | if (ret) { | |
392 | IWL_ERR(priv, "Failed to restore WEP keys (%d)\n", ret); | |
393 | return ret; | |
394 | } | |
395 | ||
396 | memcpy(active, &ctx->staging, sizeof(*active)); | |
397 | return 0; | |
398 | } | |
399 | ||
e6a62a6e MV |
400 | static int iwl_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force) |
401 | { | |
402 | int ret; | |
403 | s8 prev_tx_power; | |
404 | bool defer; | |
405 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; | |
406 | ||
bfb45f54 DS |
407 | if (priv->calib_disabled & IWL_TX_POWER_CALIB_DISABLED) |
408 | return 0; | |
409 | ||
e6a62a6e MV |
410 | lockdep_assert_held(&priv->mutex); |
411 | ||
412 | if (priv->tx_power_user_lmt == tx_power && !force) | |
413 | return 0; | |
414 | ||
415 | if (tx_power < IWLAGN_TX_POWER_TARGET_POWER_MIN) { | |
416 | IWL_WARN(priv, | |
417 | "Requested user TXPOWER %d below lower limit %d.\n", | |
418 | tx_power, | |
419 | IWLAGN_TX_POWER_TARGET_POWER_MIN); | |
420 | return -EINVAL; | |
421 | } | |
422 | ||
26a7ca9a | 423 | if (tx_power > DIV_ROUND_UP(priv->eeprom_data->max_tx_pwr_half_dbm, 2)) { |
e6a62a6e MV |
424 | IWL_WARN(priv, |
425 | "Requested user TXPOWER %d above upper limit %d.\n", | |
26a7ca9a | 426 | tx_power, priv->eeprom_data->max_tx_pwr_half_dbm); |
e6a62a6e MV |
427 | return -EINVAL; |
428 | } | |
429 | ||
430 | if (!iwl_is_ready_rf(priv)) | |
431 | return -EIO; | |
432 | ||
433 | /* scan complete and commit_rxon use tx_power_next value, | |
434 | * it always need to be updated for newest request */ | |
435 | priv->tx_power_next = tx_power; | |
436 | ||
437 | /* do not set tx power when scanning or channel changing */ | |
438 | defer = test_bit(STATUS_SCANNING, &priv->status) || | |
439 | memcmp(&ctx->active, &ctx->staging, sizeof(ctx->staging)); | |
440 | if (defer && !force) { | |
441 | IWL_DEBUG_INFO(priv, "Deferring tx power set\n"); | |
442 | return 0; | |
443 | } | |
444 | ||
445 | prev_tx_power = priv->tx_power_user_lmt; | |
446 | priv->tx_power_user_lmt = tx_power; | |
447 | ||
448 | ret = iwlagn_send_tx_power(priv); | |
449 | ||
450 | /* if fail to set tx_power, restore the orig. tx power */ | |
451 | if (ret) { | |
452 | priv->tx_power_user_lmt = prev_tx_power; | |
453 | priv->tx_power_next = prev_tx_power; | |
454 | } | |
455 | return ret; | |
456 | } | |
457 | ||
c1821c95 WYG |
458 | static int iwlagn_rxon_connect(struct iwl_priv *priv, |
459 | struct iwl_rxon_context *ctx) | |
460 | { | |
461 | int ret; | |
462 | struct iwl_rxon_cmd *active = (void *)&ctx->active; | |
463 | ||
464 | /* RXON timing must be before associated RXON */ | |
2b9253d2 JB |
465 | if (ctx->ctxid == IWL_RXON_CTX_BSS) { |
466 | ret = iwl_send_rxon_timing(priv, ctx); | |
467 | if (ret) { | |
468 | IWL_ERR(priv, "Failed to send timing (%d)!\n", ret); | |
469 | return ret; | |
470 | } | |
c1821c95 WYG |
471 | } |
472 | /* QoS info may be cleared by previous un-assoc RXON */ | |
473 | iwlagn_update_qos(priv, ctx); | |
474 | ||
475 | /* | |
476 | * We'll run into this code path when beaconing is | |
477 | * enabled, but then we also need to send the beacon | |
478 | * to the device. | |
479 | */ | |
480 | if (ctx->vif && (ctx->vif->type == NL80211_IFTYPE_AP)) { | |
481 | ret = iwlagn_update_beacon(priv, ctx->vif); | |
482 | if (ret) { | |
483 | IWL_ERR(priv, | |
484 | "Error sending required beacon (%d)!\n", | |
485 | ret); | |
486 | return ret; | |
487 | } | |
488 | } | |
489 | ||
490 | priv->start_calib = 0; | |
491 | /* | |
492 | * Apply the new configuration. | |
493 | * | |
494 | * Associated RXON doesn't clear the station table in uCode, | |
495 | * so we don't need to restore stations etc. after this. | |
496 | */ | |
e10a0533 | 497 | ret = iwl_dvm_send_cmd_pdu(priv, ctx->rxon_cmd, CMD_SYNC, |
c1821c95 WYG |
498 | sizeof(struct iwl_rxon_cmd), &ctx->staging); |
499 | if (ret) { | |
500 | IWL_ERR(priv, "Error setting new RXON (%d)\n", ret); | |
501 | return ret; | |
502 | } | |
503 | memcpy(active, &ctx->staging, sizeof(*active)); | |
504 | ||
c1821c95 WYG |
505 | /* IBSS beacon needs to be sent after setting assoc */ |
506 | if (ctx->vif && (ctx->vif->type == NL80211_IFTYPE_ADHOC)) | |
507 | if (iwlagn_update_beacon(priv, ctx->vif)) | |
508 | IWL_ERR(priv, "Error sending IBSS beacon\n"); | |
509 | iwl_init_sensitivity(priv); | |
510 | ||
511 | /* | |
512 | * If we issue a new RXON command which required a tune then | |
513 | * we must send a new TXPOWER command or we won't be able to | |
514 | * Tx any frames. | |
515 | * | |
516 | * It's expected we set power here if channel is changing. | |
517 | */ | |
518 | ret = iwl_set_tx_power(priv, priv->tx_power_next, true); | |
519 | if (ret) { | |
520 | IWL_ERR(priv, "Error sending TX power (%d)\n", ret); | |
521 | return ret; | |
522 | } | |
15b3f3b0 | 523 | |
107ef97a | 524 | if (ctx->vif && ctx->vif->type == NL80211_IFTYPE_STATION && |
2152268f | 525 | priv->cfg->ht_params && priv->cfg->ht_params->smps_mode) |
15b3f3b0 | 526 | ieee80211_request_smps(ctx->vif, |
2152268f | 527 | priv->cfg->ht_params->smps_mode); |
15b3f3b0 | 528 | |
c1821c95 WYG |
529 | return 0; |
530 | } | |
531 | ||
e505c433 WYG |
532 | int iwlagn_set_pan_params(struct iwl_priv *priv) |
533 | { | |
534 | struct iwl_wipan_params_cmd cmd; | |
535 | struct iwl_rxon_context *ctx_bss, *ctx_pan; | |
536 | int slot0 = 300, slot1 = 0; | |
537 | int ret; | |
538 | ||
a18f61bc | 539 | if (priv->valid_contexts == BIT(IWL_RXON_CTX_BSS)) |
e505c433 WYG |
540 | return 0; |
541 | ||
542 | BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2); | |
543 | ||
b1eea297 | 544 | lockdep_assert_held(&priv->mutex); |
e505c433 WYG |
545 | |
546 | ctx_bss = &priv->contexts[IWL_RXON_CTX_BSS]; | |
547 | ctx_pan = &priv->contexts[IWL_RXON_CTX_PAN]; | |
548 | ||
549 | /* | |
550 | * If the PAN context is inactive, then we don't need | |
551 | * to update the PAN parameters, the last thing we'll | |
552 | * have done before it goes inactive is making the PAN | |
553 | * parameters be WLAN-only. | |
554 | */ | |
555 | if (!ctx_pan->is_active) | |
556 | return 0; | |
557 | ||
558 | memset(&cmd, 0, sizeof(cmd)); | |
559 | ||
560 | /* only 2 slots are currently allowed */ | |
561 | cmd.num_slots = 2; | |
562 | ||
563 | cmd.slots[0].type = 0; /* BSS */ | |
564 | cmd.slots[1].type = 1; /* PAN */ | |
565 | ||
c6baf7fb | 566 | if (priv->hw_roc_setup) { |
e505c433 | 567 | /* both contexts must be used for this to happen */ |
c6baf7fb JB |
568 | slot1 = IWL_MIN_SLOT_TIME; |
569 | slot0 = 3000; | |
e505c433 | 570 | } else if (ctx_bss->vif && ctx_pan->vif) { |
bbb05cb5 | 571 | int bcnint = ctx_pan->beacon_int; |
e505c433 WYG |
572 | int dtim = ctx_pan->vif->bss_conf.dtim_period ?: 1; |
573 | ||
574 | /* should be set, but seems unused?? */ | |
575 | cmd.flags |= cpu_to_le16(IWL_WIPAN_PARAMS_FLG_SLOTTED_MODE); | |
576 | ||
577 | if (ctx_pan->vif->type == NL80211_IFTYPE_AP && | |
578 | bcnint && | |
bbb05cb5 | 579 | bcnint != ctx_bss->beacon_int) { |
e505c433 WYG |
580 | IWL_ERR(priv, |
581 | "beacon intervals don't match (%d, %d)\n", | |
bbb05cb5 | 582 | ctx_bss->beacon_int, ctx_pan->beacon_int); |
e505c433 WYG |
583 | } else |
584 | bcnint = max_t(int, bcnint, | |
bbb05cb5 | 585 | ctx_bss->beacon_int); |
e505c433 WYG |
586 | if (!bcnint) |
587 | bcnint = DEFAULT_BEACON_INTERVAL; | |
588 | slot0 = bcnint / 2; | |
589 | slot1 = bcnint - slot0; | |
590 | ||
83626404 | 591 | if (test_bit(STATUS_SCAN_HW, &priv->status) || |
e505c433 WYG |
592 | (!ctx_bss->vif->bss_conf.idle && |
593 | !ctx_bss->vif->bss_conf.assoc)) { | |
594 | slot0 = dtim * bcnint * 3 - IWL_MIN_SLOT_TIME; | |
595 | slot1 = IWL_MIN_SLOT_TIME; | |
596 | } else if (!ctx_pan->vif->bss_conf.idle && | |
597 | !ctx_pan->vif->bss_conf.assoc) { | |
325a7ddf | 598 | slot1 = dtim * bcnint * 3 - IWL_MIN_SLOT_TIME; |
e505c433 WYG |
599 | slot0 = IWL_MIN_SLOT_TIME; |
600 | } | |
601 | } else if (ctx_pan->vif) { | |
602 | slot0 = 0; | |
603 | slot1 = max_t(int, 1, ctx_pan->vif->bss_conf.dtim_period) * | |
bbb05cb5 | 604 | ctx_pan->beacon_int; |
e505c433 WYG |
605 | slot1 = max_t(int, DEFAULT_BEACON_INTERVAL, slot1); |
606 | ||
83626404 | 607 | if (test_bit(STATUS_SCAN_HW, &priv->status)) { |
e505c433 WYG |
608 | slot0 = slot1 * 3 - IWL_MIN_SLOT_TIME; |
609 | slot1 = IWL_MIN_SLOT_TIME; | |
610 | } | |
611 | } | |
612 | ||
613 | cmd.slots[0].width = cpu_to_le16(slot0); | |
614 | cmd.slots[1].width = cpu_to_le16(slot1); | |
615 | ||
e10a0533 | 616 | ret = iwl_dvm_send_cmd_pdu(priv, REPLY_WIPAN_PARAMS, CMD_SYNC, |
e505c433 WYG |
617 | sizeof(cmd), &cmd); |
618 | if (ret) | |
619 | IWL_ERR(priv, "Error setting PAN parameters (%d)\n", ret); | |
620 | ||
621 | return ret; | |
622 | } | |
623 | ||
dd64173e MV |
624 | static void _iwl_set_rxon_ht(struct iwl_priv *priv, |
625 | struct iwl_ht_config *ht_conf, | |
626 | struct iwl_rxon_context *ctx) | |
627 | { | |
628 | struct iwl_rxon_cmd *rxon = &ctx->staging; | |
629 | ||
630 | if (!ctx->ht.enabled) { | |
631 | rxon->flags &= ~(RXON_FLG_CHANNEL_MODE_MSK | | |
632 | RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK | | |
633 | RXON_FLG_HT40_PROT_MSK | | |
634 | RXON_FLG_HT_PROT_MSK); | |
635 | return; | |
636 | } | |
637 | ||
638 | /* FIXME: if the definition of ht.protection changed, the "translation" | |
639 | * will be needed for rxon->flags | |
640 | */ | |
641 | rxon->flags |= cpu_to_le32(ctx->ht.protection << | |
642 | RXON_FLG_HT_OPERATING_MODE_POS); | |
643 | ||
644 | /* Set up channel bandwidth: | |
645 | * 20 MHz only, 20/40 mixed or pure 40 if ht40 ok */ | |
646 | /* clear the HT channel mode before set the mode */ | |
647 | rxon->flags &= ~(RXON_FLG_CHANNEL_MODE_MSK | | |
648 | RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK); | |
649 | if (iwl_is_ht40_tx_allowed(priv, ctx, NULL)) { | |
650 | /* pure ht40 */ | |
651 | if (ctx->ht.protection == | |
652 | IEEE80211_HT_OP_MODE_PROTECTION_20MHZ) { | |
653 | rxon->flags |= RXON_FLG_CHANNEL_MODE_PURE_40; | |
654 | /* | |
655 | * Note: control channel is opposite of extension | |
656 | * channel | |
657 | */ | |
658 | switch (ctx->ht.extension_chan_offset) { | |
659 | case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: | |
660 | rxon->flags &= | |
661 | ~RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK; | |
662 | break; | |
663 | case IEEE80211_HT_PARAM_CHA_SEC_BELOW: | |
664 | rxon->flags |= | |
665 | RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK; | |
666 | break; | |
667 | } | |
668 | } else { | |
669 | /* | |
670 | * Note: control channel is opposite of extension | |
671 | * channel | |
672 | */ | |
673 | switch (ctx->ht.extension_chan_offset) { | |
674 | case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: | |
675 | rxon->flags &= | |
676 | ~(RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK); | |
677 | rxon->flags |= RXON_FLG_CHANNEL_MODE_MIXED; | |
678 | break; | |
679 | case IEEE80211_HT_PARAM_CHA_SEC_BELOW: | |
680 | rxon->flags |= RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK; | |
681 | rxon->flags |= RXON_FLG_CHANNEL_MODE_MIXED; | |
682 | break; | |
683 | case IEEE80211_HT_PARAM_CHA_SEC_NONE: | |
684 | default: | |
685 | /* | |
686 | * channel location only valid if in Mixed | |
687 | * mode | |
688 | */ | |
689 | IWL_ERR(priv, | |
690 | "invalid extension channel offset\n"); | |
691 | break; | |
692 | } | |
693 | } | |
694 | } else { | |
695 | rxon->flags |= RXON_FLG_CHANNEL_MODE_LEGACY; | |
696 | } | |
697 | ||
698 | iwlagn_set_rxon_chain(priv, ctx); | |
699 | ||
700 | IWL_DEBUG_ASSOC(priv, "rxon flags 0x%X operation mode :0x%X " | |
701 | "extension channel offset 0x%x\n", | |
702 | le32_to_cpu(rxon->flags), ctx->ht.protection, | |
703 | ctx->ht.extension_chan_offset); | |
704 | } | |
705 | ||
706 | void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_config *ht_conf) | |
707 | { | |
708 | struct iwl_rxon_context *ctx; | |
709 | ||
710 | for_each_context(priv, ctx) | |
711 | _iwl_set_rxon_ht(priv, ht_conf, ctx); | |
712 | } | |
713 | ||
fedfa87a MV |
714 | /** |
715 | * iwl_set_rxon_channel - Set the band and channel values in staging RXON | |
716 | * @ch: requested channel as a pointer to struct ieee80211_channel | |
717 | ||
718 | * NOTE: Does not commit to the hardware; it sets appropriate bit fields | |
719 | * in the staging RXON flag structure based on the ch->band | |
720 | */ | |
721 | void iwl_set_rxon_channel(struct iwl_priv *priv, struct ieee80211_channel *ch, | |
722 | struct iwl_rxon_context *ctx) | |
723 | { | |
724 | enum ieee80211_band band = ch->band; | |
725 | u16 channel = ch->hw_value; | |
726 | ||
727 | if ((le16_to_cpu(ctx->staging.channel) == channel) && | |
728 | (priv->band == band)) | |
729 | return; | |
730 | ||
731 | ctx->staging.channel = cpu_to_le16(channel); | |
732 | if (band == IEEE80211_BAND_5GHZ) | |
733 | ctx->staging.flags &= ~RXON_FLG_BAND_24G_MSK; | |
734 | else | |
735 | ctx->staging.flags |= RXON_FLG_BAND_24G_MSK; | |
736 | ||
737 | priv->band = band; | |
738 | ||
739 | IWL_DEBUG_INFO(priv, "Staging channel set to %d [%d]\n", channel, band); | |
740 | ||
741 | } | |
742 | ||
50319f74 MV |
743 | void iwl_set_flags_for_band(struct iwl_priv *priv, |
744 | struct iwl_rxon_context *ctx, | |
745 | enum ieee80211_band band, | |
746 | struct ieee80211_vif *vif) | |
747 | { | |
748 | if (band == IEEE80211_BAND_5GHZ) { | |
749 | ctx->staging.flags &= | |
750 | ~(RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK | |
751 | | RXON_FLG_CCK_MSK); | |
752 | ctx->staging.flags |= RXON_FLG_SHORT_SLOT_MSK; | |
753 | } else { | |
754 | /* Copied from iwl_post_associate() */ | |
755 | if (vif && vif->bss_conf.use_short_slot) | |
756 | ctx->staging.flags |= RXON_FLG_SHORT_SLOT_MSK; | |
757 | else | |
758 | ctx->staging.flags &= ~RXON_FLG_SHORT_SLOT_MSK; | |
759 | ||
760 | ctx->staging.flags |= RXON_FLG_BAND_24G_MSK; | |
761 | ctx->staging.flags |= RXON_FLG_AUTO_DETECT_MSK; | |
762 | ctx->staging.flags &= ~RXON_FLG_CCK_MSK; | |
763 | } | |
764 | } | |
765 | ||
354a4530 MV |
766 | static void iwl_set_rxon_hwcrypto(struct iwl_priv *priv, |
767 | struct iwl_rxon_context *ctx, int hw_decrypt) | |
768 | { | |
769 | struct iwl_rxon_cmd *rxon = &ctx->staging; | |
770 | ||
771 | if (hw_decrypt) | |
772 | rxon->filter_flags &= ~RXON_FILTER_DIS_DECRYPT_MSK; | |
773 | else | |
774 | rxon->filter_flags |= RXON_FILTER_DIS_DECRYPT_MSK; | |
775 | ||
776 | } | |
777 | ||
8931b576 MV |
778 | /* validate RXON structure is valid */ |
779 | static int iwl_check_rxon_cmd(struct iwl_priv *priv, | |
780 | struct iwl_rxon_context *ctx) | |
781 | { | |
782 | struct iwl_rxon_cmd *rxon = &ctx->staging; | |
783 | u32 errors = 0; | |
784 | ||
785 | if (rxon->flags & RXON_FLG_BAND_24G_MSK) { | |
786 | if (rxon->flags & RXON_FLG_TGJ_NARROW_BAND_MSK) { | |
787 | IWL_WARN(priv, "check 2.4G: wrong narrow\n"); | |
788 | errors |= BIT(0); | |
789 | } | |
790 | if (rxon->flags & RXON_FLG_RADAR_DETECT_MSK) { | |
791 | IWL_WARN(priv, "check 2.4G: wrong radar\n"); | |
792 | errors |= BIT(1); | |
793 | } | |
794 | } else { | |
795 | if (!(rxon->flags & RXON_FLG_SHORT_SLOT_MSK)) { | |
796 | IWL_WARN(priv, "check 5.2G: not short slot!\n"); | |
797 | errors |= BIT(2); | |
798 | } | |
799 | if (rxon->flags & RXON_FLG_CCK_MSK) { | |
800 | IWL_WARN(priv, "check 5.2G: CCK!\n"); | |
801 | errors |= BIT(3); | |
802 | } | |
803 | } | |
804 | if ((rxon->node_addr[0] | rxon->bssid_addr[0]) & 0x1) { | |
805 | IWL_WARN(priv, "mac/bssid mcast!\n"); | |
806 | errors |= BIT(4); | |
807 | } | |
808 | ||
809 | /* make sure basic rates 6Mbps and 1Mbps are supported */ | |
810 | if ((rxon->ofdm_basic_rates & IWL_RATE_6M_MASK) == 0 && | |
811 | (rxon->cck_basic_rates & IWL_RATE_1M_MASK) == 0) { | |
812 | IWL_WARN(priv, "neither 1 nor 6 are basic\n"); | |
813 | errors |= BIT(5); | |
814 | } | |
815 | ||
816 | if (le16_to_cpu(rxon->assoc_id) > 2007) { | |
817 | IWL_WARN(priv, "aid > 2007\n"); | |
818 | errors |= BIT(6); | |
819 | } | |
820 | ||
821 | if ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK)) | |
822 | == (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK)) { | |
823 | IWL_WARN(priv, "CCK and short slot\n"); | |
824 | errors |= BIT(7); | |
825 | } | |
826 | ||
827 | if ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK)) | |
828 | == (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK)) { | |
829 | IWL_WARN(priv, "CCK and auto detect"); | |
830 | errors |= BIT(8); | |
831 | } | |
832 | ||
833 | if ((rxon->flags & (RXON_FLG_AUTO_DETECT_MSK | | |
834 | RXON_FLG_TGG_PROTECT_MSK)) == | |
835 | RXON_FLG_TGG_PROTECT_MSK) { | |
836 | IWL_WARN(priv, "TGg but no auto-detect\n"); | |
837 | errors |= BIT(9); | |
838 | } | |
839 | ||
840 | if (rxon->channel == 0) { | |
841 | IWL_WARN(priv, "zero channel is invalid\n"); | |
842 | errors |= BIT(10); | |
843 | } | |
844 | ||
845 | WARN(errors, "Invalid RXON (%#x), channel %d", | |
846 | errors, le16_to_cpu(rxon->channel)); | |
847 | ||
848 | return errors ? -EINVAL : 0; | |
849 | } | |
850 | ||
55620921 MV |
851 | /** |
852 | * iwl_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed | |
853 | * @priv: staging_rxon is compared to active_rxon | |
854 | * | |
855 | * If the RXON structure is changing enough to require a new tune, | |
856 | * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that | |
857 | * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required. | |
858 | */ | |
aca86268 JB |
859 | static int iwl_full_rxon_required(struct iwl_priv *priv, |
860 | struct iwl_rxon_context *ctx) | |
55620921 MV |
861 | { |
862 | const struct iwl_rxon_cmd *staging = &ctx->staging; | |
863 | const struct iwl_rxon_cmd *active = &ctx->active; | |
864 | ||
865 | #define CHK(cond) \ | |
866 | if ((cond)) { \ | |
867 | IWL_DEBUG_INFO(priv, "need full RXON - " #cond "\n"); \ | |
868 | return 1; \ | |
869 | } | |
870 | ||
871 | #define CHK_NEQ(c1, c2) \ | |
872 | if ((c1) != (c2)) { \ | |
873 | IWL_DEBUG_INFO(priv, "need full RXON - " \ | |
874 | #c1 " != " #c2 " - %d != %d\n", \ | |
875 | (c1), (c2)); \ | |
876 | return 1; \ | |
877 | } | |
878 | ||
879 | /* These items are only settable from the full RXON command */ | |
880 | CHK(!iwl_is_associated_ctx(ctx)); | |
2e42e474 JP |
881 | CHK(!ether_addr_equal(staging->bssid_addr, active->bssid_addr)); |
882 | CHK(!ether_addr_equal(staging->node_addr, active->node_addr)); | |
883 | CHK(!ether_addr_equal(staging->wlap_bssid_addr, | |
884 | active->wlap_bssid_addr)); | |
55620921 MV |
885 | CHK_NEQ(staging->dev_type, active->dev_type); |
886 | CHK_NEQ(staging->channel, active->channel); | |
887 | CHK_NEQ(staging->air_propagation, active->air_propagation); | |
888 | CHK_NEQ(staging->ofdm_ht_single_stream_basic_rates, | |
889 | active->ofdm_ht_single_stream_basic_rates); | |
890 | CHK_NEQ(staging->ofdm_ht_dual_stream_basic_rates, | |
891 | active->ofdm_ht_dual_stream_basic_rates); | |
892 | CHK_NEQ(staging->ofdm_ht_triple_stream_basic_rates, | |
893 | active->ofdm_ht_triple_stream_basic_rates); | |
894 | CHK_NEQ(staging->assoc_id, active->assoc_id); | |
895 | ||
896 | /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can | |
897 | * be updated with the RXON_ASSOC command -- however only some | |
898 | * flag transitions are allowed using RXON_ASSOC */ | |
899 | ||
900 | /* Check if we are not switching bands */ | |
901 | CHK_NEQ(staging->flags & RXON_FLG_BAND_24G_MSK, | |
902 | active->flags & RXON_FLG_BAND_24G_MSK); | |
903 | ||
904 | /* Check if we are switching association toggle */ | |
905 | CHK_NEQ(staging->filter_flags & RXON_FILTER_ASSOC_MSK, | |
906 | active->filter_flags & RXON_FILTER_ASSOC_MSK); | |
907 | ||
908 | #undef CHK | |
909 | #undef CHK_NEQ | |
910 | ||
911 | return 0; | |
912 | } | |
913 | ||
4d323acd MV |
914 | #ifdef CONFIG_IWLWIFI_DEBUG |
915 | void iwl_print_rx_config_cmd(struct iwl_priv *priv, | |
916 | enum iwl_rxon_context_id ctxid) | |
917 | { | |
918 | struct iwl_rxon_context *ctx = &priv->contexts[ctxid]; | |
919 | struct iwl_rxon_cmd *rxon = &ctx->staging; | |
920 | ||
921 | IWL_DEBUG_RADIO(priv, "RX CONFIG:\n"); | |
922 | iwl_print_hex_dump(priv, IWL_DL_RADIO, (u8 *) rxon, sizeof(*rxon)); | |
923 | IWL_DEBUG_RADIO(priv, "u16 channel: 0x%x\n", | |
924 | le16_to_cpu(rxon->channel)); | |
925 | IWL_DEBUG_RADIO(priv, "u32 flags: 0x%08X\n", | |
926 | le32_to_cpu(rxon->flags)); | |
927 | IWL_DEBUG_RADIO(priv, "u32 filter_flags: 0x%08x\n", | |
928 | le32_to_cpu(rxon->filter_flags)); | |
929 | IWL_DEBUG_RADIO(priv, "u8 dev_type: 0x%x\n", rxon->dev_type); | |
930 | IWL_DEBUG_RADIO(priv, "u8 ofdm_basic_rates: 0x%02x\n", | |
931 | rxon->ofdm_basic_rates); | |
932 | IWL_DEBUG_RADIO(priv, "u8 cck_basic_rates: 0x%02x\n", | |
933 | rxon->cck_basic_rates); | |
934 | IWL_DEBUG_RADIO(priv, "u8[6] node_addr: %pM\n", rxon->node_addr); | |
935 | IWL_DEBUG_RADIO(priv, "u8[6] bssid_addr: %pM\n", rxon->bssid_addr); | |
936 | IWL_DEBUG_RADIO(priv, "u16 assoc_id: 0x%x\n", | |
937 | le16_to_cpu(rxon->assoc_id)); | |
938 | } | |
939 | #endif | |
940 | ||
9543c5f3 JB |
941 | static void iwl_calc_basic_rates(struct iwl_priv *priv, |
942 | struct iwl_rxon_context *ctx) | |
943 | { | |
944 | int lowest_present_ofdm = 100; | |
945 | int lowest_present_cck = 100; | |
946 | u8 cck = 0; | |
947 | u8 ofdm = 0; | |
948 | ||
949 | if (ctx->vif) { | |
950 | struct ieee80211_supported_band *sband; | |
951 | unsigned long basic = ctx->vif->bss_conf.basic_rates; | |
952 | int i; | |
953 | ||
954 | sband = priv->hw->wiphy->bands[priv->hw->conf.channel->band]; | |
955 | ||
956 | for_each_set_bit(i, &basic, BITS_PER_LONG) { | |
957 | int hw = sband->bitrates[i].hw_value; | |
958 | if (hw >= IWL_FIRST_OFDM_RATE) { | |
959 | ofdm |= BIT(hw - IWL_FIRST_OFDM_RATE); | |
960 | if (lowest_present_ofdm > hw) | |
961 | lowest_present_ofdm = hw; | |
962 | } else { | |
963 | BUILD_BUG_ON(IWL_FIRST_CCK_RATE != 0); | |
964 | ||
965 | cck |= BIT(hw); | |
966 | if (lowest_present_cck > hw) | |
967 | lowest_present_cck = hw; | |
968 | } | |
969 | } | |
970 | } | |
971 | ||
972 | /* | |
973 | * Now we've got the basic rates as bitmaps in the ofdm and cck | |
974 | * variables. This isn't sufficient though, as there might not | |
975 | * be all the right rates in the bitmap. E.g. if the only basic | |
976 | * rates are 5.5 Mbps and 11 Mbps, we still need to add 1 Mbps | |
977 | * and 6 Mbps because the 802.11-2007 standard says in 9.6: | |
978 | * | |
979 | * [...] a STA responding to a received frame shall transmit | |
980 | * its Control Response frame [...] at the highest rate in the | |
981 | * BSSBasicRateSet parameter that is less than or equal to the | |
982 | * rate of the immediately previous frame in the frame exchange | |
983 | * sequence ([...]) and that is of the same modulation class | |
984 | * ([...]) as the received frame. If no rate contained in the | |
985 | * BSSBasicRateSet parameter meets these conditions, then the | |
986 | * control frame sent in response to a received frame shall be | |
987 | * transmitted at the highest mandatory rate of the PHY that is | |
988 | * less than or equal to the rate of the received frame, and | |
989 | * that is of the same modulation class as the received frame. | |
990 | * | |
991 | * As a consequence, we need to add all mandatory rates that are | |
992 | * lower than all of the basic rates to these bitmaps. | |
993 | */ | |
994 | ||
995 | if (IWL_RATE_24M_INDEX < lowest_present_ofdm) | |
996 | ofdm |= IWL_RATE_24M_MASK >> IWL_FIRST_OFDM_RATE; | |
997 | if (IWL_RATE_12M_INDEX < lowest_present_ofdm) | |
998 | ofdm |= IWL_RATE_12M_MASK >> IWL_FIRST_OFDM_RATE; | |
999 | /* 6M already there or needed so always add */ | |
1000 | ofdm |= IWL_RATE_6M_MASK >> IWL_FIRST_OFDM_RATE; | |
1001 | ||
1002 | /* | |
1003 | * CCK is a bit more complex with DSSS vs. HR/DSSS vs. ERP. | |
1004 | * Note, however: | |
1005 | * - if no CCK rates are basic, it must be ERP since there must | |
1006 | * be some basic rates at all, so they're OFDM => ERP PHY | |
1007 | * (or we're in 5 GHz, and the cck bitmap will never be used) | |
1008 | * - if 11M is a basic rate, it must be ERP as well, so add 5.5M | |
1009 | * - if 5.5M is basic, 1M and 2M are mandatory | |
1010 | * - if 2M is basic, 1M is mandatory | |
1011 | * - if 1M is basic, that's the only valid ACK rate. | |
1012 | * As a consequence, it's not as complicated as it sounds, just add | |
1013 | * any lower rates to the ACK rate bitmap. | |
1014 | */ | |
5edd0b94 EG |
1015 | if (IWL_RATE_11M_INDEX < lowest_present_cck) |
1016 | cck |= IWL_RATE_11M_MASK >> IWL_FIRST_CCK_RATE; | |
1017 | if (IWL_RATE_5M_INDEX < lowest_present_cck) | |
1018 | cck |= IWL_RATE_5M_MASK >> IWL_FIRST_CCK_RATE; | |
1019 | if (IWL_RATE_2M_INDEX < lowest_present_cck) | |
1020 | cck |= IWL_RATE_2M_MASK >> IWL_FIRST_CCK_RATE; | |
9543c5f3 JB |
1021 | /* 1M already there or needed so always add */ |
1022 | cck |= IWL_RATE_1M_MASK >> IWL_FIRST_CCK_RATE; | |
1023 | ||
1024 | IWL_DEBUG_RATE(priv, "Set basic rates cck:0x%.2x ofdm:0x%.2x\n", | |
1025 | cck, ofdm); | |
1026 | ||
1027 | /* "basic_rates" is a misnomer here -- should be called ACK rates */ | |
1028 | ctx->staging.cck_basic_rates = cck; | |
1029 | ctx->staging.ofdm_basic_rates = ofdm; | |
1030 | } | |
1031 | ||
2295c66b JB |
1032 | /** |
1033 | * iwlagn_commit_rxon - commit staging_rxon to hardware | |
1034 | * | |
1035 | * The RXON command in staging_rxon is committed to the hardware and | |
1036 | * the active_rxon structure is updated with the new data. This | |
1037 | * function correctly transitions out of the RXON_ASSOC_MSK state if | |
1038 | * a HW tune is required based on the RXON structure changes. | |
c1821c95 WYG |
1039 | * |
1040 | * The connect/disconnect flow should be as the following: | |
1041 | * | |
1042 | * 1. make sure send RXON command with association bit unset if not connect | |
1043 | * this should include the channel and the band for the candidate | |
1044 | * to be connected to | |
1045 | * 2. Add Station before RXON association with the AP | |
1046 | * 3. RXON_timing has to send before RXON for connection | |
1047 | * 4. full RXON command - associated bit set | |
1048 | * 5. use RXON_ASSOC command to update any flags changes | |
2295c66b JB |
1049 | */ |
1050 | int iwlagn_commit_rxon(struct iwl_priv *priv, struct iwl_rxon_context *ctx) | |
1051 | { | |
1052 | /* cast away the const for active_rxon in this function */ | |
1053 | struct iwl_rxon_cmd *active = (void *)&ctx->active; | |
2295c66b JB |
1054 | bool new_assoc = !!(ctx->staging.filter_flags & RXON_FILTER_ASSOC_MSK); |
1055 | int ret; | |
1056 | ||
b1eea297 | 1057 | lockdep_assert_held(&priv->mutex); |
2295c66b | 1058 | |
83626404 | 1059 | if (!iwl_is_alive(priv)) |
2295c66b JB |
1060 | return -EBUSY; |
1061 | ||
1062 | /* This function hardcodes a bunch of dual-mode assumptions */ | |
1063 | BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2); | |
1064 | ||
1065 | if (!ctx->is_active) | |
1066 | return 0; | |
1067 | ||
1068 | /* always get timestamp with Rx frame */ | |
1069 | ctx->staging.flags |= RXON_FLG_TSF2HOST_MSK; | |
1070 | ||
9543c5f3 JB |
1071 | /* recalculate basic rates */ |
1072 | iwl_calc_basic_rates(priv, ctx); | |
1073 | ||
42b70a5f SG |
1074 | /* |
1075 | * force CTS-to-self frames protection if RTS-CTS is not preferred | |
1076 | * one aggregation protection method | |
1077 | */ | |
9e295116 | 1078 | if (!priv->hw_params.use_rts_for_aggregation) |
42b70a5f SG |
1079 | ctx->staging.flags |= RXON_FLG_SELF_CTS_EN; |
1080 | ||
2295c66b JB |
1081 | if ((ctx->vif && ctx->vif->bss_conf.use_short_slot) || |
1082 | !(ctx->staging.flags & RXON_FLG_BAND_24G_MSK)) | |
1083 | ctx->staging.flags |= RXON_FLG_SHORT_SLOT_MSK; | |
1084 | else | |
1085 | ctx->staging.flags &= ~RXON_FLG_SHORT_SLOT_MSK; | |
1086 | ||
522376d2 | 1087 | iwl_print_rx_config_cmd(priv, ctx->ctxid); |
2295c66b JB |
1088 | ret = iwl_check_rxon_cmd(priv, ctx); |
1089 | if (ret) { | |
1090 | IWL_ERR(priv, "Invalid RXON configuration. Not committing.\n"); | |
1091 | return -EINVAL; | |
1092 | } | |
1093 | ||
1094 | /* | |
1095 | * receive commit_rxon request | |
1096 | * abort any previous channel switch if still in process | |
1097 | */ | |
83626404 | 1098 | if (test_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status) && |
6f213ff1 | 1099 | (priv->switch_channel != ctx->staging.channel)) { |
2295c66b | 1100 | IWL_DEBUG_11H(priv, "abort channel switch on %d\n", |
6f213ff1 | 1101 | le16_to_cpu(priv->switch_channel)); |
2295c66b JB |
1102 | iwl_chswitch_done(priv, false); |
1103 | } | |
1104 | ||
1105 | /* | |
1106 | * If we don't need to send a full RXON, we can use | |
1107 | * iwl_rxon_assoc_cmd which is used to reconfigure filter | |
1108 | * and other flags for the current radio configuration. | |
1109 | */ | |
1110 | if (!iwl_full_rxon_required(priv, ctx)) { | |
c3f6e9cf | 1111 | ret = iwlagn_send_rxon_assoc(priv, ctx); |
2295c66b JB |
1112 | if (ret) { |
1113 | IWL_ERR(priv, "Error setting RXON_ASSOC (%d)\n", ret); | |
1114 | return ret; | |
1115 | } | |
1116 | ||
1117 | memcpy(active, &ctx->staging, sizeof(*active)); | |
891db881 WYG |
1118 | /* |
1119 | * We do not commit tx power settings while channel changing, | |
1120 | * do it now if after settings changed. | |
1121 | */ | |
1122 | iwl_set_tx_power(priv, priv->tx_power_next, false); | |
15b3f3b0 WYG |
1123 | |
1124 | /* make sure we are in the right PS state */ | |
1125 | iwl_power_update_mode(priv, true); | |
1126 | ||
2295c66b JB |
1127 | return 0; |
1128 | } | |
1129 | ||
65de7e84 | 1130 | iwl_set_rxon_hwcrypto(priv, ctx, !iwlwifi_mod_params.sw_crypto); |
2295c66b JB |
1131 | |
1132 | IWL_DEBUG_INFO(priv, | |
1133 | "Going to commit RXON\n" | |
1134 | " * with%s RXON_FILTER_ASSOC_MSK\n" | |
1135 | " * channel = %d\n" | |
1136 | " * bssid = %pM\n", | |
1137 | (new_assoc ? "" : "out"), | |
1138 | le16_to_cpu(ctx->staging.channel), | |
1139 | ctx->staging.bssid_addr); | |
1140 | ||
1141 | /* | |
52d980c0 JB |
1142 | * Always clear associated first, but with the correct config. |
1143 | * This is required as for example station addition for the | |
1144 | * AP station must be done after the BSSID is set to correctly | |
1145 | * set up filters in the device. | |
2295c66b | 1146 | */ |
3083d03c WYG |
1147 | ret = iwlagn_rxon_disconn(priv, ctx); |
1148 | if (ret) | |
1149 | return ret; | |
2295c66b | 1150 | |
e3f10cea WYG |
1151 | ret = iwlagn_set_pan_params(priv); |
1152 | if (ret) | |
1153 | return ret; | |
2b9253d2 | 1154 | |
c1821c95 WYG |
1155 | if (new_assoc) |
1156 | return iwlagn_rxon_connect(priv, ctx); | |
2295c66b JB |
1157 | |
1158 | return 0; | |
1159 | } | |
1160 | ||
34a5b4b6 WYG |
1161 | void iwlagn_config_ht40(struct ieee80211_conf *conf, |
1162 | struct iwl_rxon_context *ctx) | |
1163 | { | |
1164 | if (conf_is_ht40_minus(conf)) { | |
1165 | ctx->ht.extension_chan_offset = | |
1166 | IEEE80211_HT_PARAM_CHA_SEC_BELOW; | |
1167 | ctx->ht.is_40mhz = true; | |
1168 | } else if (conf_is_ht40_plus(conf)) { | |
1169 | ctx->ht.extension_chan_offset = | |
1170 | IEEE80211_HT_PARAM_CHA_SEC_ABOVE; | |
1171 | ctx->ht.is_40mhz = true; | |
1172 | } else { | |
1173 | ctx->ht.extension_chan_offset = | |
1174 | IEEE80211_HT_PARAM_CHA_SEC_NONE; | |
1175 | ctx->ht.is_40mhz = false; | |
1176 | } | |
1177 | } | |
1178 | ||
2295c66b JB |
1179 | int iwlagn_mac_config(struct ieee80211_hw *hw, u32 changed) |
1180 | { | |
d0f76d68 | 1181 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
2295c66b JB |
1182 | struct iwl_rxon_context *ctx; |
1183 | struct ieee80211_conf *conf = &hw->conf; | |
1184 | struct ieee80211_channel *channel = conf->channel; | |
2295c66b JB |
1185 | int ret = 0; |
1186 | ||
0ca24daf | 1187 | IWL_DEBUG_MAC80211(priv, "enter: changed %#x\n", changed); |
2295c66b | 1188 | |
b1eea297 | 1189 | mutex_lock(&priv->mutex); |
2295c66b | 1190 | |
83626404 | 1191 | if (unlikely(test_bit(STATUS_SCANNING, &priv->status))) { |
2295c66b JB |
1192 | IWL_DEBUG_MAC80211(priv, "leave - scanning\n"); |
1193 | goto out; | |
1194 | } | |
1195 | ||
83626404 | 1196 | if (!iwl_is_ready(priv)) { |
2295c66b JB |
1197 | IWL_DEBUG_MAC80211(priv, "leave - not ready\n"); |
1198 | goto out; | |
1199 | } | |
1200 | ||
1201 | if (changed & (IEEE80211_CONF_CHANGE_SMPS | | |
1202 | IEEE80211_CONF_CHANGE_CHANNEL)) { | |
1203 | /* mac80211 uses static for non-HT which is what we want */ | |
1204 | priv->current_ht_config.smps = conf->smps_mode; | |
1205 | ||
1206 | /* | |
1207 | * Recalculate chain counts. | |
1208 | * | |
1209 | * If monitor mode is enabled then mac80211 will | |
1210 | * set up the SM PS mode to OFF if an HT channel is | |
1211 | * configured. | |
1212 | */ | |
e3f10cea WYG |
1213 | for_each_context(priv, ctx) |
1214 | iwlagn_set_rxon_chain(priv, ctx); | |
2295c66b JB |
1215 | } |
1216 | ||
1217 | if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { | |
2295c66b JB |
1218 | for_each_context(priv, ctx) { |
1219 | /* Configure HT40 channels */ | |
7caa2316 | 1220 | if (ctx->ht.enabled != conf_is_ht(conf)) |
35a6eb36 | 1221 | ctx->ht.enabled = conf_is_ht(conf); |
35a6eb36 | 1222 | |
2295c66b | 1223 | if (ctx->ht.enabled) { |
34a5b4b6 WYG |
1224 | /* if HT40 is used, it should not change |
1225 | * after associated except channel switch */ | |
78feb35b WYG |
1226 | if (!ctx->ht.is_40mhz || |
1227 | !iwl_is_associated_ctx(ctx)) | |
34a5b4b6 | 1228 | iwlagn_config_ht40(conf, ctx); |
2295c66b JB |
1229 | } else |
1230 | ctx->ht.is_40mhz = false; | |
1231 | ||
1232 | /* | |
1233 | * Default to no protection. Protection mode will | |
1234 | * later be set from BSS config in iwl_ht_conf | |
1235 | */ | |
1236 | ctx->ht.protection = IEEE80211_HT_OP_MODE_PROTECTION_NONE; | |
1237 | ||
1238 | /* if we are switching from ht to 2.4 clear flags | |
1239 | * from any ht related info since 2.4 does not | |
1240 | * support ht */ | |
1241 | if (le16_to_cpu(ctx->staging.channel) != | |
1242 | channel->hw_value) | |
1243 | ctx->staging.flags = 0; | |
1244 | ||
1245 | iwl_set_rxon_channel(priv, channel, ctx); | |
1246 | iwl_set_rxon_ht(priv, &priv->current_ht_config); | |
1247 | ||
1248 | iwl_set_flags_for_band(priv, ctx, channel->band, | |
1249 | ctx->vif); | |
1250 | } | |
1251 | ||
2295c66b | 1252 | iwl_update_bcast_stations(priv); |
2295c66b JB |
1253 | } |
1254 | ||
1255 | if (changed & (IEEE80211_CONF_CHANGE_PS | | |
1256 | IEEE80211_CONF_CHANGE_IDLE)) { | |
1257 | ret = iwl_power_update_mode(priv, false); | |
1258 | if (ret) | |
1259 | IWL_DEBUG_MAC80211(priv, "Error setting sleep level\n"); | |
1260 | } | |
1261 | ||
1262 | if (changed & IEEE80211_CONF_CHANGE_POWER) { | |
1263 | IWL_DEBUG_MAC80211(priv, "TX Power old=%d new=%d\n", | |
1264 | priv->tx_power_user_lmt, conf->power_level); | |
1265 | ||
1266 | iwl_set_tx_power(priv, conf->power_level, false); | |
1267 | } | |
1268 | ||
1269 | for_each_context(priv, ctx) { | |
1270 | if (!memcmp(&ctx->staging, &ctx->active, sizeof(ctx->staging))) | |
1271 | continue; | |
1272 | iwlagn_commit_rxon(priv, ctx); | |
1273 | } | |
1274 | out: | |
b1eea297 | 1275 | mutex_unlock(&priv->mutex); |
770c72c4 WYG |
1276 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
1277 | ||
2295c66b JB |
1278 | return ret; |
1279 | } | |
1280 | ||
aca86268 JB |
1281 | static void iwlagn_check_needed_chains(struct iwl_priv *priv, |
1282 | struct iwl_rxon_context *ctx, | |
1283 | struct ieee80211_bss_conf *bss_conf) | |
2295c66b JB |
1284 | { |
1285 | struct ieee80211_vif *vif = ctx->vif; | |
1286 | struct iwl_rxon_context *tmp; | |
1287 | struct ieee80211_sta *sta; | |
1288 | struct iwl_ht_config *ht_conf = &priv->current_ht_config; | |
850bedcc | 1289 | struct ieee80211_sta_ht_cap *ht_cap; |
2295c66b JB |
1290 | bool need_multiple; |
1291 | ||
b1eea297 | 1292 | lockdep_assert_held(&priv->mutex); |
2295c66b JB |
1293 | |
1294 | switch (vif->type) { | |
1295 | case NL80211_IFTYPE_STATION: | |
1296 | rcu_read_lock(); | |
1297 | sta = ieee80211_find_sta(vif, bss_conf->bssid); | |
850bedcc | 1298 | if (!sta) { |
2295c66b JB |
1299 | /* |
1300 | * If at all, this can only happen through a race | |
1301 | * when the AP disconnects us while we're still | |
1302 | * setting up the connection, in that case mac80211 | |
1303 | * will soon tell us about that. | |
1304 | */ | |
1305 | need_multiple = false; | |
850bedcc JB |
1306 | rcu_read_unlock(); |
1307 | break; | |
1308 | } | |
1309 | ||
1310 | ht_cap = &sta->ht_cap; | |
1311 | ||
1312 | need_multiple = true; | |
1313 | ||
1314 | /* | |
1315 | * If the peer advertises no support for receiving 2 and 3 | |
1316 | * stream MCS rates, it can't be transmitting them either. | |
1317 | */ | |
1318 | if (ht_cap->mcs.rx_mask[1] == 0 && | |
1319 | ht_cap->mcs.rx_mask[2] == 0) { | |
1320 | need_multiple = false; | |
1321 | } else if (!(ht_cap->mcs.tx_params & | |
1322 | IEEE80211_HT_MCS_TX_DEFINED)) { | |
1323 | /* If it can't TX MCS at all ... */ | |
1324 | need_multiple = false; | |
1325 | } else if (ht_cap->mcs.tx_params & | |
1326 | IEEE80211_HT_MCS_TX_RX_DIFF) { | |
1327 | int maxstreams; | |
1328 | ||
1329 | /* | |
1330 | * But if it can receive them, it might still not | |
1331 | * be able to transmit them, which is what we need | |
1332 | * to check here -- so check the number of streams | |
1333 | * it advertises for TX (if different from RX). | |
1334 | */ | |
1335 | ||
1336 | maxstreams = (ht_cap->mcs.tx_params & | |
1337 | IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK); | |
1338 | maxstreams >>= | |
1339 | IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT; | |
1340 | maxstreams += 1; | |
1341 | ||
1342 | if (maxstreams <= 1) | |
1343 | need_multiple = false; | |
2295c66b | 1344 | } |
850bedcc | 1345 | |
2295c66b JB |
1346 | rcu_read_unlock(); |
1347 | break; | |
1348 | case NL80211_IFTYPE_ADHOC: | |
1349 | /* currently */ | |
1350 | need_multiple = false; | |
1351 | break; | |
1352 | default: | |
1353 | /* only AP really */ | |
1354 | need_multiple = true; | |
1355 | break; | |
1356 | } | |
1357 | ||
1358 | ctx->ht_need_multiple_chains = need_multiple; | |
1359 | ||
1360 | if (!need_multiple) { | |
1361 | /* check all contexts */ | |
1362 | for_each_context(priv, tmp) { | |
1363 | if (!tmp->vif) | |
1364 | continue; | |
1365 | if (tmp->ht_need_multiple_chains) { | |
1366 | need_multiple = true; | |
1367 | break; | |
1368 | } | |
1369 | } | |
1370 | } | |
1371 | ||
1372 | ht_conf->single_chain_sufficient = !need_multiple; | |
1373 | } | |
1374 | ||
aca86268 | 1375 | static void iwlagn_chain_noise_reset(struct iwl_priv *priv) |
5c3d29fc DF |
1376 | { |
1377 | struct iwl_chain_noise_data *data = &priv->chain_noise_data; | |
1378 | int ret; | |
1379 | ||
bfb45f54 DS |
1380 | if (!(priv->calib_disabled & IWL_CHAIN_NOISE_CALIB_DISABLED)) |
1381 | return; | |
1382 | ||
5c3d29fc DF |
1383 | if ((data->state == IWL_CHAIN_NOISE_ALIVE) && |
1384 | iwl_is_any_associated(priv)) { | |
1385 | struct iwl_calib_chain_noise_reset_cmd cmd; | |
1386 | ||
1387 | /* clear data for chain noise calibration algorithm */ | |
1388 | data->chain_noise_a = 0; | |
1389 | data->chain_noise_b = 0; | |
1390 | data->chain_noise_c = 0; | |
1391 | data->chain_signal_a = 0; | |
1392 | data->chain_signal_b = 0; | |
1393 | data->chain_signal_c = 0; | |
1394 | data->beacon_count = 0; | |
1395 | ||
1396 | memset(&cmd, 0, sizeof(cmd)); | |
1397 | iwl_set_calib_hdr(&cmd.hdr, | |
898ed67b | 1398 | priv->phy_calib_chain_noise_reset_cmd); |
e10a0533 | 1399 | ret = iwl_dvm_send_cmd_pdu(priv, |
5c3d29fc DF |
1400 | REPLY_PHY_CALIBRATION_CMD, |
1401 | CMD_SYNC, sizeof(cmd), &cmd); | |
1402 | if (ret) | |
1403 | IWL_ERR(priv, | |
1404 | "Could not send REPLY_PHY_CALIBRATION_CMD\n"); | |
1405 | data->state = IWL_CHAIN_NOISE_ACCUMULATE; | |
1406 | IWL_DEBUG_CALIB(priv, "Run chain_noise_calibrate\n"); | |
1407 | } | |
1408 | } | |
1409 | ||
2295c66b JB |
1410 | void iwlagn_bss_info_changed(struct ieee80211_hw *hw, |
1411 | struct ieee80211_vif *vif, | |
1412 | struct ieee80211_bss_conf *bss_conf, | |
1413 | u32 changes) | |
1414 | { | |
d0f76d68 | 1415 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
2295c66b JB |
1416 | struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif); |
1417 | int ret; | |
1418 | bool force = false; | |
1419 | ||
b1eea297 | 1420 | mutex_lock(&priv->mutex); |
2295c66b | 1421 | |
83626404 | 1422 | if (unlikely(!iwl_is_ready(priv))) { |
14a085e7 | 1423 | IWL_DEBUG_MAC80211(priv, "leave - not ready\n"); |
b1eea297 | 1424 | mutex_unlock(&priv->mutex); |
ae0b693c SZ |
1425 | return; |
1426 | } | |
1427 | ||
1428 | if (unlikely(!ctx->vif)) { | |
1429 | IWL_DEBUG_MAC80211(priv, "leave - vif is NULL\n"); | |
b1eea297 | 1430 | mutex_unlock(&priv->mutex); |
893654de JB |
1431 | return; |
1432 | } | |
1433 | ||
2295c66b JB |
1434 | if (changes & BSS_CHANGED_BEACON_INT) |
1435 | force = true; | |
1436 | ||
1437 | if (changes & BSS_CHANGED_QOS) { | |
1438 | ctx->qos_data.qos_active = bss_conf->qos; | |
1439 | iwlagn_update_qos(priv, ctx); | |
1440 | } | |
1441 | ||
1442 | ctx->staging.assoc_id = cpu_to_le16(vif->bss_conf.aid); | |
1443 | if (vif->bss_conf.use_short_preamble) | |
1444 | ctx->staging.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; | |
1445 | else | |
1446 | ctx->staging.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; | |
1447 | ||
1448 | if (changes & BSS_CHANGED_ASSOC) { | |
1449 | if (bss_conf->assoc) { | |
8c358bcd | 1450 | priv->timestamp = bss_conf->sync_tsf; |
2295c66b JB |
1451 | ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK; |
1452 | } else { | |
68b99311 GT |
1453 | /* |
1454 | * If we disassociate while there are pending | |
1455 | * frames, just wake up the queues and let the | |
1456 | * frames "escape" ... This shouldn't really | |
1457 | * be happening to start with, but we should | |
1458 | * not get stuck in this case either since it | |
1459 | * can happen if userspace gets confused. | |
1460 | */ | |
e755f882 JB |
1461 | iwlagn_lift_passive_no_rx(priv); |
1462 | ||
2295c66b | 1463 | ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
c8ac61cf JB |
1464 | |
1465 | if (ctx->ctxid == IWL_RXON_CTX_BSS) | |
1466 | priv->have_rekey_data = false; | |
2295c66b | 1467 | } |
207ecc5e MV |
1468 | |
1469 | iwlagn_bt_coex_rssi_monitor(priv); | |
2295c66b JB |
1470 | } |
1471 | ||
1472 | if (ctx->ht.enabled) { | |
1473 | ctx->ht.protection = bss_conf->ht_operation_mode & | |
1474 | IEEE80211_HT_OP_MODE_PROTECTION; | |
1475 | ctx->ht.non_gf_sta_present = !!(bss_conf->ht_operation_mode & | |
1476 | IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT); | |
1477 | iwlagn_check_needed_chains(priv, ctx, bss_conf); | |
b2769b84 | 1478 | iwl_set_rxon_ht(priv, &priv->current_ht_config); |
2295c66b JB |
1479 | } |
1480 | ||
e3f10cea | 1481 | iwlagn_set_rxon_chain(priv, ctx); |
2295c66b JB |
1482 | |
1483 | if (bss_conf->use_cts_prot && (priv->band != IEEE80211_BAND_5GHZ)) | |
1484 | ctx->staging.flags |= RXON_FLG_TGG_PROTECT_MSK; | |
1485 | else | |
1486 | ctx->staging.flags &= ~RXON_FLG_TGG_PROTECT_MSK; | |
1487 | ||
1488 | if (bss_conf->use_cts_prot) | |
1489 | ctx->staging.flags |= RXON_FLG_SELF_CTS_EN; | |
1490 | else | |
1491 | ctx->staging.flags &= ~RXON_FLG_SELF_CTS_EN; | |
1492 | ||
1493 | memcpy(ctx->staging.bssid_addr, bss_conf->bssid, ETH_ALEN); | |
1494 | ||
1495 | if (vif->type == NL80211_IFTYPE_AP || | |
1496 | vif->type == NL80211_IFTYPE_ADHOC) { | |
1497 | if (vif->bss_conf.enable_beacon) { | |
1498 | ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK; | |
1499 | priv->beacon_ctx = ctx; | |
1500 | } else { | |
1501 | ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
1502 | priv->beacon_ctx = NULL; | |
1503 | } | |
1504 | } | |
1505 | ||
758f555f MV |
1506 | /* |
1507 | * If the ucode decides to do beacon filtering before | |
1508 | * association, it will lose beacons that are needed | |
1509 | * before sending frames out on passive channels. This | |
1510 | * causes association failures on those channels. Enable | |
1511 | * receiving beacons in such cases. | |
1512 | */ | |
1513 | ||
1514 | if (vif->type == NL80211_IFTYPE_STATION) { | |
1515 | if (!bss_conf->assoc) | |
1516 | ctx->staging.filter_flags |= RXON_FILTER_BCON_AWARE_MSK; | |
1517 | else | |
1518 | ctx->staging.filter_flags &= | |
1519 | ~RXON_FILTER_BCON_AWARE_MSK; | |
1520 | } | |
1521 | ||
2295c66b JB |
1522 | if (force || memcmp(&ctx->staging, &ctx->active, sizeof(ctx->staging))) |
1523 | iwlagn_commit_rxon(priv, ctx); | |
1524 | ||
8da8e628 JB |
1525 | if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc) { |
1526 | /* | |
1527 | * The chain noise calibration will enable PM upon | |
1528 | * completion. If calibration has already been run | |
1529 | * then we need to enable power management here. | |
1530 | */ | |
1531 | if (priv->chain_noise_data.state == IWL_CHAIN_NOISE_DONE) | |
1532 | iwl_power_update_mode(priv, false); | |
1533 | ||
1534 | /* Enable RX differential gain and sensitivity calibrations */ | |
bfb45f54 | 1535 | iwlagn_chain_noise_reset(priv); |
8da8e628 JB |
1536 | priv->start_calib = 1; |
1537 | } | |
1538 | ||
2295c66b JB |
1539 | if (changes & BSS_CHANGED_IBSS) { |
1540 | ret = iwlagn_manage_ibss_station(priv, vif, | |
1541 | bss_conf->ibss_joined); | |
1542 | if (ret) | |
1543 | IWL_ERR(priv, "failed to %s IBSS station %pM\n", | |
1544 | bss_conf->ibss_joined ? "add" : "remove", | |
1545 | bss_conf->bssid); | |
1546 | } | |
1547 | ||
bd50a8ab JB |
1548 | if (changes & BSS_CHANGED_BEACON && vif->type == NL80211_IFTYPE_ADHOC && |
1549 | priv->beacon_ctx) { | |
1550 | if (iwlagn_update_beacon(priv, vif)) | |
1551 | IWL_ERR(priv, "Error sending IBSS beacon\n"); | |
1552 | } | |
1553 | ||
b1eea297 | 1554 | mutex_unlock(&priv->mutex); |
2295c66b | 1555 | } |
ae79d23d JB |
1556 | |
1557 | void iwlagn_post_scan(struct iwl_priv *priv) | |
1558 | { | |
1559 | struct iwl_rxon_context *ctx; | |
1560 | ||
c2b821d7 WYG |
1561 | /* |
1562 | * We do not commit power settings while scan is pending, | |
1563 | * do it now if the settings changed. | |
1564 | */ | |
1565 | iwl_power_set_mode(priv, &priv->power_data.sleep_cmd_next, false); | |
1566 | iwl_set_tx_power(priv, priv->tx_power_next, false); | |
1567 | ||
ae79d23d JB |
1568 | /* |
1569 | * Since setting the RXON may have been deferred while | |
1570 | * performing the scan, fire one off if needed | |
1571 | */ | |
1572 | for_each_context(priv, ctx) | |
1573 | if (memcmp(&ctx->staging, &ctx->active, sizeof(ctx->staging))) | |
1574 | iwlagn_commit_rxon(priv, ctx); | |
1575 | ||
e3f10cea | 1576 | iwlagn_set_pan_params(priv); |
ae79d23d | 1577 | } |