drivers/net/wireless/iwlwifi/iwl-agn-rxon.c

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2003 - 2012 Intel Corporation. All rights reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of version 2 of the GNU General Public License as
   7  * published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12  * more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along with
  15  * this program; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
  17  *
  18  * The full GNU General Public License is included in this distribution in the
  19  * file called LICENSE.
  20  *
  21  * Contact Information:
  22  * Intel Linux Wireless <ilw@linux.intel.com>
  23  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  24  *
  25  *****************************************************************************/
  26
  27 #include "iwl-dev.h"
  28 #include "iwl-agn.h"
  29 #include "iwl-core.h"
  30 #include "iwl-agn-calib.h"
  31 #include "iwl-trans.h"
  32 #include "iwl-shared.h"
  33
  34 static int iwlagn_disable_bss(struct iwl_priv *priv,
  35                               struct iwl_rxon_context *ctx,
  36                               struct iwl_rxon_cmd *send)
  37 {
  38         __le32 old_filter = send->filter_flags;
  39         int ret;
  40
  41         send->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
  42         ret = iwl_dvm_send_cmd_pdu(priv, ctx->rxon_cmd,
  43                                 CMD_SYNC, sizeof(*send), send);
  44
  45         send->filter_flags = old_filter;
  46
  47         if (ret)
  48                 IWL_DEBUG_QUIET_RFKILL(priv,
  49                         "Error clearing ASSOC_MSK on BSS (%d)\n", ret);
  50
  51         return ret;
  52 }
  53
  54 static int iwlagn_disable_pan(struct iwl_priv *priv,
  55                               struct iwl_rxon_context *ctx,
  56                               struct iwl_rxon_cmd *send)
  57 {
  58         struct iwl_notification_wait disable_wait;
  59         __le32 old_filter = send->filter_flags;
  60         u8 old_dev_type = send->dev_type;
  61         int ret;
  62         static const u8 deactivate_cmd[] = {
  63                 REPLY_WIPAN_DEACTIVATION_COMPLETE
  64         };
  65
  66         iwl_init_notification_wait(&priv->notif_wait, &disable_wait,
  67                                    deactivate_cmd, ARRAY_SIZE(deactivate_cmd),
  68                                    NULL, NULL);
  69
  70         send->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
  71         send->dev_type = RXON_DEV_TYPE_P2P;
  72         ret = iwl_dvm_send_cmd_pdu(priv, ctx->rxon_cmd,
  73                                 CMD_SYNC, sizeof(*send), send);
  74
  75         send->filter_flags = old_filter;
  76         send->dev_type = old_dev_type;
  77
  78         if (ret) {
  79                 IWL_ERR(priv, "Error disabling PAN (%d)\n", ret);
  80                 iwl_remove_notification(&priv->notif_wait, &disable_wait);
  81         } else {
  82                 ret = iwl_wait_notification(&priv->notif_wait,
  83                                             &disable_wait, HZ);
  84                 if (ret)
  85                         IWL_ERR(priv, "Timed out waiting for PAN disable\n");
  86         }
  87
  88         return ret;
  89 }
  90
  91 static int iwlagn_disconn_pan(struct iwl_priv *priv,
  92                               struct iwl_rxon_context *ctx,
  93                               struct iwl_rxon_cmd *send)
  94 {
  95         __le32 old_filter = send->filter_flags;
  96         int ret;
  97
  98         send->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
  99         ret = iwl_dvm_send_cmd_pdu(priv, ctx->rxon_cmd, CMD_SYNC,
 100                                 sizeof(*send), send);
 101
 102         send->filter_flags = old_filter;
 103
 104         return ret;
 105 }
 106
 107 static void iwlagn_update_qos(struct iwl_priv *priv,
 108                               struct iwl_rxon_context *ctx)
 109 {
 110         int ret;
 111
 112         if (!ctx->is_active)
 113                 return;
 114
 115         ctx->qos_data.def_qos_parm.qos_flags = 0;
 116
 117         if (ctx->qos_data.qos_active)
 118                 ctx->qos_data.def_qos_parm.qos_flags |=
 119                         QOS_PARAM_FLG_UPDATE_EDCA_MSK;
 120
 121         if (ctx->ht.enabled)
 122                 ctx->qos_data.def_qos_parm.qos_flags |= QOS_PARAM_FLG_TGN_MSK;
 123
 124         IWL_DEBUG_INFO(priv, "send QoS cmd with Qos active=%d FLAGS=0x%X\n",
 125                       ctx->qos_data.qos_active,
 126                       ctx->qos_data.def_qos_parm.qos_flags);
 127
 128         ret = iwl_dvm_send_cmd_pdu(priv, ctx->qos_cmd, CMD_SYNC,
 129                                sizeof(struct iwl_qosparam_cmd),
 130                                &ctx->qos_data.def_qos_parm);
 131         if (ret)
 132                 IWL_DEBUG_QUIET_RFKILL(priv, "Failed to update QoS\n");
 133 }
 134
 135 static int iwlagn_update_beacon(struct iwl_priv *priv,
 136                                 struct ieee80211_vif *vif)
 137 {
 138         lockdep_assert_held(&priv->mutex);
 139
 140         dev_kfree_skb(priv->beacon_skb);
 141         priv->beacon_skb = ieee80211_beacon_get(priv->hw, vif);
 142         if (!priv->beacon_skb)
 143                 return -ENOMEM;
 144         return iwlagn_send_beacon_cmd(priv);
 145 }
 146
 147 static int iwlagn_send_rxon_assoc(struct iwl_priv *priv,
 148                            struct iwl_rxon_context *ctx)
 149 {
 150         int ret = 0;
 151         struct iwl_rxon_assoc_cmd rxon_assoc;
 152         const struct iwl_rxon_cmd *rxon1 = &ctx->staging;
 153         const struct iwl_rxon_cmd *rxon2 = &ctx->active;
 154
 155         if ((rxon1->flags == rxon2->flags) &&
 156             (rxon1->filter_flags == rxon2->filter_flags) &&
 157             (rxon1->cck_basic_rates == rxon2->cck_basic_rates) &&
 158             (rxon1->ofdm_ht_single_stream_basic_rates ==
 159              rxon2->ofdm_ht_single_stream_basic_rates) &&
 160             (rxon1->ofdm_ht_dual_stream_basic_rates ==
 161              rxon2->ofdm_ht_dual_stream_basic_rates) &&
 162             (rxon1->ofdm_ht_triple_stream_basic_rates ==
 163              rxon2->ofdm_ht_triple_stream_basic_rates) &&
 164             (rxon1->acquisition_data == rxon2->acquisition_data) &&
 165             (rxon1->rx_chain == rxon2->rx_chain) &&
 166             (rxon1->ofdm_basic_rates == rxon2->ofdm_basic_rates)) {
 167                 IWL_DEBUG_INFO(priv, "Using current RXON_ASSOC.  Not resending.\n");
 168                 return 0;
 169         }
 170
 171         rxon_assoc.flags = ctx->staging.flags;
 172         rxon_assoc.filter_flags = ctx->staging.filter_flags;
 173         rxon_assoc.ofdm_basic_rates = ctx->staging.ofdm_basic_rates;
 174         rxon_assoc.cck_basic_rates = ctx->staging.cck_basic_rates;
 175         rxon_assoc.reserved1 = 0;
 176         rxon_assoc.reserved2 = 0;
 177         rxon_assoc.reserved3 = 0;
 178         rxon_assoc.ofdm_ht_single_stream_basic_rates =
 179             ctx->staging.ofdm_ht_single_stream_basic_rates;
 180         rxon_assoc.ofdm_ht_dual_stream_basic_rates =
 181             ctx->staging.ofdm_ht_dual_stream_basic_rates;
 182         rxon_assoc.rx_chain_select_flags = ctx->staging.rx_chain;
 183         rxon_assoc.ofdm_ht_triple_stream_basic_rates =
 184                  ctx->staging.ofdm_ht_triple_stream_basic_rates;
 185         rxon_assoc.acquisition_data = ctx->staging.acquisition_data;
 186
 187         ret = iwl_dvm_send_cmd_pdu(priv, ctx->rxon_assoc_cmd,
 188                                 CMD_ASYNC, sizeof(rxon_assoc), &rxon_assoc);
 189         return ret;
 190 }
 191
 192 static u16 iwl_adjust_beacon_interval(u16 beacon_val, u16 max_beacon_val)
 193 {
 194         u16 new_val;
 195         u16 beacon_factor;
 196
 197         /*
 198          * If mac80211 hasn't given us a beacon interval, program
 199          * the default into the device (not checking this here
 200          * would cause the adjustment below to return the maximum
 201          * value, which may break PAN.)
 202          */
 203         if (!beacon_val)
 204                 return DEFAULT_BEACON_INTERVAL;
 205
 206         /*
 207          * If the beacon interval we obtained from the peer
 208          * is too large, we'll have to wake up more often
 209          * (and in IBSS case, we'll beacon too much)
 210          *
 211          * For example, if max_beacon_val is 4096, and the
 212          * requested beacon interval is 7000, we'll have to
 213          * use 3500 to be able to wake up on the beacons.
 214          *
 215          * This could badly influence beacon detection stats.
 216          */
 217
 218         beacon_factor = (beacon_val + max_beacon_val) / max_beacon_val;
 219         new_val = beacon_val / beacon_factor;
 220
 221         if (!new_val)
 222                 new_val = max_beacon_val;
 223
 224         return new_val;
 225 }
 226
 227 static int iwl_send_rxon_timing(struct iwl_priv *priv,
 228                                 struct iwl_rxon_context *ctx)
 229 {
 230         u64 tsf;
 231         s32 interval_tm, rem;
 232         struct ieee80211_conf *conf = NULL;
 233         u16 beacon_int;
 234         struct ieee80211_vif *vif = ctx->vif;
 235
 236         conf = &priv->hw->conf;
 237
 238         lockdep_assert_held(&priv->mutex);
 239
 240         memset(&ctx->timing, 0, sizeof(struct iwl_rxon_time_cmd));
 241
 242         ctx->timing.timestamp = cpu_to_le64(priv->timestamp);
 243         ctx->timing.listen_interval = cpu_to_le16(conf->listen_interval);
 244
 245         beacon_int = vif ? vif->bss_conf.beacon_int : 0;
 246
 247         /*
 248          * TODO: For IBSS we need to get atim_window from mac80211,
 249          *       for now just always use 0
 250          */
 251         ctx->timing.atim_window = 0;
 252
 253         if (ctx->ctxid == IWL_RXON_CTX_PAN &&
 254             (!ctx->vif || ctx->vif->type != NL80211_IFTYPE_STATION) &&
 255             iwl_is_associated(priv, IWL_RXON_CTX_BSS) &&
 256             priv->contexts[IWL_RXON_CTX_BSS].vif &&
 257             priv->contexts[IWL_RXON_CTX_BSS].vif->bss_conf.beacon_int) {
 258                 ctx->timing.beacon_interval =
 259                         priv->contexts[IWL_RXON_CTX_BSS].timing.beacon_interval;
 260                 beacon_int = le16_to_cpu(ctx->timing.beacon_interval);
 261         } else if (ctx->ctxid == IWL_RXON_CTX_BSS &&
 262                    iwl_is_associated(priv, IWL_RXON_CTX_PAN) &&
 263                    priv->contexts[IWL_RXON_CTX_PAN].vif &&
 264                    priv->contexts[IWL_RXON_CTX_PAN].vif->bss_conf.beacon_int &&
 265                    (!iwl_is_associated_ctx(ctx) || !ctx->vif ||
 266                     !ctx->vif->bss_conf.beacon_int)) {
 267                 ctx->timing.beacon_interval =
 268                         priv->contexts[IWL_RXON_CTX_PAN].timing.beacon_interval;
 269                 beacon_int = le16_to_cpu(ctx->timing.beacon_interval);
 270         } else {
 271                 beacon_int = iwl_adjust_beacon_interval(beacon_int,
 272                         IWL_MAX_UCODE_BEACON_INTERVAL * TIME_UNIT);
 273                 ctx->timing.beacon_interval = cpu_to_le16(beacon_int);
 274         }
 275
 276         ctx->beacon_int = beacon_int;
 277
 278         tsf = priv->timestamp; /* tsf is modifed by do_div: copy it */
 279         interval_tm = beacon_int * TIME_UNIT;
 280         rem = do_div(tsf, interval_tm);
 281         ctx->timing.beacon_init_val = cpu_to_le32(interval_tm - rem);
 282
 283         ctx->timing.dtim_period = vif ? (vif->bss_conf.dtim_period ?: 1) : 1;
 284
 285         IWL_DEBUG_ASSOC(priv,
 286                         "beacon interval %d beacon timer %d beacon tim %d\n",
 287                         le16_to_cpu(ctx->timing.beacon_interval),
 288                         le32_to_cpu(ctx->timing.beacon_init_val),
 289                         le16_to_cpu(ctx->timing.atim_window));
 290
 291         return iwl_dvm_send_cmd_pdu(priv, ctx->rxon_timing_cmd,
 292                                 CMD_SYNC, sizeof(ctx->timing), &ctx->timing);
 293 }
 294
 295 static int iwlagn_rxon_disconn(struct iwl_priv *priv,
 296                                struct iwl_rxon_context *ctx)
 297 {
 298         int ret;
 299         struct iwl_rxon_cmd *active = (void *)&ctx->active;
 300
 301         if (ctx->ctxid == IWL_RXON_CTX_BSS) {
 302                 ret = iwlagn_disable_bss(priv, ctx, &ctx->staging);
 303         } else {
 304                 ret = iwlagn_disable_pan(priv, ctx, &ctx->staging);
 305                 if (ret)
 306                         return ret;
 307                 if (ctx->vif) {
 308                         ret = iwl_send_rxon_timing(priv, ctx);
 309                         if (ret) {
 310                                 IWL_ERR(priv, "Failed to send timing (%d)!\n", ret);
 311                                 return ret;
 312                         }
 313                         ret = iwlagn_disconn_pan(priv, ctx, &ctx->staging);
 314                 }
 315         }
 316         if (ret)
 317                 return ret;
 318
 319         /*
 320          * Un-assoc RXON clears the station table and WEP
 321          * keys, so we have to restore those afterwards.
 322          */
 323         iwl_clear_ucode_stations(priv, ctx);
 324         /* update -- might need P2P now */
 325         iwl_update_bcast_station(priv, ctx);
 326         iwl_restore_stations(priv, ctx);
 327         ret = iwl_restore_default_wep_keys(priv, ctx);
 328         if (ret) {
 329                 IWL_ERR(priv, "Failed to restore WEP keys (%d)\n", ret);
 330                 return ret;
 331         }
 332
 333         memcpy(active, &ctx->staging, sizeof(*active));
 334         return 0;
 335 }
 336
 337 static int iwlagn_rxon_connect(struct iwl_priv *priv,
 338                                struct iwl_rxon_context *ctx)
 339 {
 340         int ret;
 341         struct iwl_rxon_cmd *active = (void *)&ctx->active;
 342
 343         /* RXON timing must be before associated RXON */
 344         if (ctx->ctxid == IWL_RXON_CTX_BSS) {
 345                 ret = iwl_send_rxon_timing(priv, ctx);
 346                 if (ret) {
 347                         IWL_ERR(priv, "Failed to send timing (%d)!\n", ret);
 348                         return ret;
 349                 }
 350         }
 351         /* QoS info may be cleared by previous un-assoc RXON */
 352         iwlagn_update_qos(priv, ctx);
 353
 354         /*
 355          * We'll run into this code path when beaconing is
 356          * enabled, but then we also need to send the beacon
 357          * to the device.
 358          */
 359         if (ctx->vif && (ctx->vif->type == NL80211_IFTYPE_AP)) {
 360                 ret = iwlagn_update_beacon(priv, ctx->vif);
 361                 if (ret) {
 362                         IWL_ERR(priv,
 363                                 "Error sending required beacon (%d)!\n",
 364                                 ret);
 365                         return ret;
 366                 }
 367         }
 368
 369         priv->start_calib = 0;
 370         /*
 371          * Apply the new configuration.
 372          *
 373          * Associated RXON doesn't clear the station table in uCode,
 374          * so we don't need to restore stations etc. after this.
 375          */
 376         ret = iwl_dvm_send_cmd_pdu(priv, ctx->rxon_cmd, CMD_SYNC,
 377                       sizeof(struct iwl_rxon_cmd), &ctx->staging);
 378         if (ret) {
 379                 IWL_ERR(priv, "Error setting new RXON (%d)\n", ret);
 380                 return ret;
 381         }
 382         memcpy(active, &ctx->staging, sizeof(*active));
 383
 384         /* IBSS beacon needs to be sent after setting assoc */
 385         if (ctx->vif && (ctx->vif->type == NL80211_IFTYPE_ADHOC))
 386                 if (iwlagn_update_beacon(priv, ctx->vif))
 387                         IWL_ERR(priv, "Error sending IBSS beacon\n");
 388         iwl_init_sensitivity(priv);
 389
 390         /*
 391          * If we issue a new RXON command which required a tune then
 392          * we must send a new TXPOWER command or we won't be able to
 393          * Tx any frames.
 394          *
 395          * It's expected we set power here if channel is changing.
 396          */
 397         ret = iwl_set_tx_power(priv, priv->tx_power_next, true);
 398         if (ret) {
 399                 IWL_ERR(priv, "Error sending TX power (%d)\n", ret);
 400                 return ret;
 401         }
 402
 403         if (ctx->vif && ctx->vif->type == NL80211_IFTYPE_STATION &&
 404             cfg(priv)->ht_params && cfg(priv)->ht_params->smps_mode)
 405                 ieee80211_request_smps(ctx->vif,
 406                                        cfg(priv)->ht_params->smps_mode);
 407
 408         return 0;
 409 }
 410
 411 int iwlagn_set_pan_params(struct iwl_priv *priv)
 412 {
 413         struct iwl_wipan_params_cmd cmd;
 414         struct iwl_rxon_context *ctx_bss, *ctx_pan;
 415         int slot0 = 300, slot1 = 0;
 416         int ret;
 417
 418         if (priv->valid_contexts == BIT(IWL_RXON_CTX_BSS))
 419                 return 0;
 420
 421         BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2);
 422
 423         lockdep_assert_held(&priv->mutex);
 424
 425         ctx_bss = &priv->contexts[IWL_RXON_CTX_BSS];
 426         ctx_pan = &priv->contexts[IWL_RXON_CTX_PAN];
 427
 428         /*
 429          * If the PAN context is inactive, then we don't need
 430          * to update the PAN parameters, the last thing we'll
 431          * have done before it goes inactive is making the PAN
 432          * parameters be WLAN-only.
 433          */
 434         if (!ctx_pan->is_active)
 435                 return 0;
 436
 437         memset(&cmd, 0, sizeof(cmd));
 438
 439         /* only 2 slots are currently allowed */
 440         cmd.num_slots = 2;
 441
 442         cmd.slots[0].type = 0; /* BSS */
 443         cmd.slots[1].type = 1; /* PAN */
 444
 445         if (priv->hw_roc_setup) {
 446                 /* both contexts must be used for this to happen */
 447                 slot1 = IWL_MIN_SLOT_TIME;
 448                 slot0 = 3000;
 449         } else if (ctx_bss->vif && ctx_pan->vif) {
 450                 int bcnint = ctx_pan->beacon_int;
 451                 int dtim = ctx_pan->vif->bss_conf.dtim_period ?: 1;
 452
 453                 /* should be set, but seems unused?? */
 454                 cmd.flags |= cpu_to_le16(IWL_WIPAN_PARAMS_FLG_SLOTTED_MODE);
 455
 456                 if (ctx_pan->vif->type == NL80211_IFTYPE_AP &&
 457                     bcnint &&
 458                     bcnint != ctx_bss->beacon_int) {
 459                         IWL_ERR(priv,
 460                                 "beacon intervals don't match (%d, %d)\n",
 461                                 ctx_bss->beacon_int, ctx_pan->beacon_int);
 462                 } else
 463                         bcnint = max_t(int, bcnint,
 464                                        ctx_bss->beacon_int);
 465                 if (!bcnint)
 466                         bcnint = DEFAULT_BEACON_INTERVAL;
 467                 slot0 = bcnint / 2;
 468                 slot1 = bcnint - slot0;
 469
 470                 if (test_bit(STATUS_SCAN_HW, &priv->status) ||
 471                     (!ctx_bss->vif->bss_conf.idle &&
 472                      !ctx_bss->vif->bss_conf.assoc)) {
 473                         slot0 = dtim * bcnint * 3 - IWL_MIN_SLOT_TIME;
 474                         slot1 = IWL_MIN_SLOT_TIME;
 475                 } else if (!ctx_pan->vif->bss_conf.idle &&
 476                            !ctx_pan->vif->bss_conf.assoc) {
 477                         slot1 = dtim * bcnint * 3 - IWL_MIN_SLOT_TIME;
 478                         slot0 = IWL_MIN_SLOT_TIME;
 479                 }
 480         } else if (ctx_pan->vif) {
 481                 slot0 = 0;
 482                 slot1 = max_t(int, 1, ctx_pan->vif->bss_conf.dtim_period) *
 483                                         ctx_pan->beacon_int;
 484                 slot1 = max_t(int, DEFAULT_BEACON_INTERVAL, slot1);
 485
 486                 if (test_bit(STATUS_SCAN_HW, &priv->status)) {
 487                         slot0 = slot1 * 3 - IWL_MIN_SLOT_TIME;
 488                         slot1 = IWL_MIN_SLOT_TIME;
 489                 }
 490         }
 491
 492         cmd.slots[0].width = cpu_to_le16(slot0);
 493         cmd.slots[1].width = cpu_to_le16(slot1);
 494
 495         ret = iwl_dvm_send_cmd_pdu(priv, REPLY_WIPAN_PARAMS, CMD_SYNC,
 496                         sizeof(cmd), &cmd);
 497         if (ret)
 498                 IWL_ERR(priv, "Error setting PAN parameters (%d)\n", ret);
 499
 500         return ret;
 501 }
 502
 503 static void iwl_set_rxon_hwcrypto(struct iwl_priv *priv,
 504                                   struct iwl_rxon_context *ctx, int hw_decrypt)
 505 {
 506         struct iwl_rxon_cmd *rxon = &ctx->staging;
 507
 508         if (hw_decrypt)
 509                 rxon->filter_flags &= ~RXON_FILTER_DIS_DECRYPT_MSK;
 510         else
 511                 rxon->filter_flags |= RXON_FILTER_DIS_DECRYPT_MSK;
 512
 513 }
 514
 515 /* validate RXON structure is valid */
 516 static int iwl_check_rxon_cmd(struct iwl_priv *priv,
 517                               struct iwl_rxon_context *ctx)
 518 {
 519         struct iwl_rxon_cmd *rxon = &ctx->staging;
 520         u32 errors = 0;
 521
 522         if (rxon->flags & RXON_FLG_BAND_24G_MSK) {
 523                 if (rxon->flags & RXON_FLG_TGJ_NARROW_BAND_MSK) {
 524                         IWL_WARN(priv, "check 2.4G: wrong narrow\n");
 525                         errors |= BIT(0);
 526                 }
 527                 if (rxon->flags & RXON_FLG_RADAR_DETECT_MSK) {
 528                         IWL_WARN(priv, "check 2.4G: wrong radar\n");
 529                         errors |= BIT(1);
 530                 }
 531         } else {
 532                 if (!(rxon->flags & RXON_FLG_SHORT_SLOT_MSK)) {
 533                         IWL_WARN(priv, "check 5.2G: not short slot!\n");
 534                         errors |= BIT(2);
 535                 }
 536                 if (rxon->flags & RXON_FLG_CCK_MSK) {
 537                         IWL_WARN(priv, "check 5.2G: CCK!\n");
 538                         errors |= BIT(3);
 539                 }
 540         }
 541         if ((rxon->node_addr[0] | rxon->bssid_addr[0]) & 0x1) {
 542                 IWL_WARN(priv, "mac/bssid mcast!\n");
 543                 errors |= BIT(4);
 544         }
 545
 546         /* make sure basic rates 6Mbps and 1Mbps are supported */
 547         if ((rxon->ofdm_basic_rates & IWL_RATE_6M_MASK) == 0 &&
 548             (rxon->cck_basic_rates & IWL_RATE_1M_MASK) == 0) {
 549                 IWL_WARN(priv, "neither 1 nor 6 are basic\n");
 550                 errors |= BIT(5);
 551         }
 552
 553         if (le16_to_cpu(rxon->assoc_id) > 2007) {
 554                 IWL_WARN(priv, "aid > 2007\n");
 555                 errors |= BIT(6);
 556         }
 557
 558         if ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK))
 559                         == (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK)) {
 560                 IWL_WARN(priv, "CCK and short slot\n");
 561                 errors |= BIT(7);
 562         }
 563
 564         if ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK))
 565                         == (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK)) {
 566                 IWL_WARN(priv, "CCK and auto detect");
 567                 errors |= BIT(8);
 568         }
 569
 570         if ((rxon->flags & (RXON_FLG_AUTO_DETECT_MSK |
 571                             RXON_FLG_TGG_PROTECT_MSK)) ==
 572                             RXON_FLG_TGG_PROTECT_MSK) {
 573                 IWL_WARN(priv, "TGg but no auto-detect\n");
 574                 errors |= BIT(9);
 575         }
 576
 577         if (rxon->channel == 0) {
 578                 IWL_WARN(priv, "zero channel is invalid\n");
 579                 errors |= BIT(10);
 580         }
 581
 582         WARN(errors, "Invalid RXON (%#x), channel %d",
 583              errors, le16_to_cpu(rxon->channel));
 584
 585         return errors ? -EINVAL : 0;
 586 }
 587
 588 /**
 589  * iwlagn_commit_rxon - commit staging_rxon to hardware
 590  *
 591  * The RXON command in staging_rxon is committed to the hardware and
 592  * the active_rxon structure is updated with the new data.  This
 593  * function correctly transitions out of the RXON_ASSOC_MSK state if
 594  * a HW tune is required based on the RXON structure changes.
 595  *
 596  * The connect/disconnect flow should be as the following:
 597  *
 598  * 1. make sure send RXON command with association bit unset if not connect
 599  *      this should include the channel and the band for the candidate
 600  *      to be connected to
 601  * 2. Add Station before RXON association with the AP
 602  * 3. RXON_timing has to send before RXON for connection
 603  * 4. full RXON command - associated bit set
 604  * 5. use RXON_ASSOC command to update any flags changes
 605  */
 606 int iwlagn_commit_rxon(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
 607 {
 608         /* cast away the const for active_rxon in this function */
 609         struct iwl_rxon_cmd *active = (void *)&ctx->active;
 610         bool new_assoc = !!(ctx->staging.filter_flags & RXON_FILTER_ASSOC_MSK);
 611         int ret;
 612
 613         lockdep_assert_held(&priv->mutex);
 614
 615         if (!iwl_is_alive(priv))
 616                 return -EBUSY;
 617
 618         /* This function hardcodes a bunch of dual-mode assumptions */
 619         BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2);
 620
 621         if (!ctx->is_active)
 622                 return 0;
 623
 624         /* always get timestamp with Rx frame */
 625         ctx->staging.flags |= RXON_FLG_TSF2HOST_MSK;
 626
 627         /*
 628          * force CTS-to-self frames protection if RTS-CTS is not preferred
 629          * one aggregation protection method
 630          */
 631         if (!hw_params(priv).use_rts_for_aggregation)
 632                 ctx->staging.flags |= RXON_FLG_SELF_CTS_EN;
 633
 634         if ((ctx->vif && ctx->vif->bss_conf.use_short_slot) ||
 635             !(ctx->staging.flags & RXON_FLG_BAND_24G_MSK))
 636                 ctx->staging.flags |= RXON_FLG_SHORT_SLOT_MSK;
 637         else
 638                 ctx->staging.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
 639
 640         iwl_print_rx_config_cmd(priv, ctx->ctxid);
 641         ret = iwl_check_rxon_cmd(priv, ctx);
 642         if (ret) {
 643                 IWL_ERR(priv, "Invalid RXON configuration. Not committing.\n");
 644                 return -EINVAL;
 645         }
 646
 647         /*
 648          * receive commit_rxon request
 649          * abort any previous channel switch if still in process
 650          */
 651         if (test_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status) &&
 652             (priv->switch_channel != ctx->staging.channel)) {
 653                 IWL_DEBUG_11H(priv, "abort channel switch on %d\n",
 654                               le16_to_cpu(priv->switch_channel));
 655                 iwl_chswitch_done(priv, false);
 656         }
 657
 658         /*
 659          * If we don't need to send a full RXON, we can use
 660          * iwl_rxon_assoc_cmd which is used to reconfigure filter
 661          * and other flags for the current radio configuration.
 662          */
 663         if (!iwl_full_rxon_required(priv, ctx)) {
 664                 ret = iwlagn_send_rxon_assoc(priv, ctx);
 665                 if (ret) {
 666                         IWL_ERR(priv, "Error setting RXON_ASSOC (%d)\n", ret);
 667                         return ret;
 668                 }
 669
 670                 memcpy(active, &ctx->staging, sizeof(*active));
 671                 /*
 672                  * We do not commit tx power settings while channel changing,
 673                  * do it now if after settings changed.
 674                  */
 675                 iwl_set_tx_power(priv, priv->tx_power_next, false);
 676
 677                 /* make sure we are in the right PS state */
 678                 iwl_power_update_mode(priv, true);
 679
 680                 return 0;
 681         }
 682
 683         iwl_set_rxon_hwcrypto(priv, ctx, !iwlagn_mod_params.sw_crypto);
 684
 685         IWL_DEBUG_INFO(priv,
 686                        "Going to commit RXON\n"
 687                        "  * with%s RXON_FILTER_ASSOC_MSK\n"
 688                        "  * channel = %d\n"
 689                        "  * bssid = %pM\n",
 690                        (new_assoc ? "" : "out"),
 691                        le16_to_cpu(ctx->staging.channel),
 692                        ctx->staging.bssid_addr);
 693
 694         /*
 695          * Always clear associated first, but with the correct config.
 696          * This is required as for example station addition for the
 697          * AP station must be done after the BSSID is set to correctly
 698          * set up filters in the device.
 699          */
 700         ret = iwlagn_rxon_disconn(priv, ctx);
 701         if (ret)
 702                 return ret;
 703
 704         ret = iwlagn_set_pan_params(priv);
 705         if (ret)
 706                 return ret;
 707
 708         if (new_assoc)
 709                 return iwlagn_rxon_connect(priv, ctx);
 710
 711         return 0;
 712 }
 713
 714 void iwlagn_config_ht40(struct ieee80211_conf *conf,
 715         struct iwl_rxon_context *ctx)
 716 {
 717         if (conf_is_ht40_minus(conf)) {
 718                 ctx->ht.extension_chan_offset =
 719                         IEEE80211_HT_PARAM_CHA_SEC_BELOW;
 720                 ctx->ht.is_40mhz = true;
 721         } else if (conf_is_ht40_plus(conf)) {
 722                 ctx->ht.extension_chan_offset =
 723                         IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
 724                 ctx->ht.is_40mhz = true;
 725         } else {
 726                 ctx->ht.extension_chan_offset =
 727                         IEEE80211_HT_PARAM_CHA_SEC_NONE;
 728                 ctx->ht.is_40mhz = false;
 729         }
 730 }
 731
 732 int iwlagn_mac_config(struct ieee80211_hw *hw, u32 changed)
 733 {
 734         struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
 735         struct iwl_rxon_context *ctx;
 736         struct ieee80211_conf *conf = &hw->conf;
 737         struct ieee80211_channel *channel = conf->channel;
 738         const struct iwl_channel_info *ch_info;
 739         int ret = 0;
 740
 741         IWL_DEBUG_MAC80211(priv, "enter: changed %#x\n", changed);
 742
 743         mutex_lock(&priv->mutex);
 744
 745         if (unlikely(test_bit(STATUS_SCANNING, &priv->status))) {
 746                 IWL_DEBUG_MAC80211(priv, "leave - scanning\n");
 747                 goto out;
 748         }
 749
 750         if (!iwl_is_ready(priv)) {
 751                 IWL_DEBUG_MAC80211(priv, "leave - not ready\n");
 752                 goto out;
 753         }
 754
 755         if (changed & (IEEE80211_CONF_CHANGE_SMPS |
 756                        IEEE80211_CONF_CHANGE_CHANNEL)) {
 757                 /* mac80211 uses static for non-HT which is what we want */
 758                 priv->current_ht_config.smps = conf->smps_mode;
 759
 760                 /*
 761                  * Recalculate chain counts.
 762                  *
 763                  * If monitor mode is enabled then mac80211 will
 764                  * set up the SM PS mode to OFF if an HT channel is
 765                  * configured.
 766                  */
 767                 for_each_context(priv, ctx)
 768                         iwlagn_set_rxon_chain(priv, ctx);
 769         }
 770
 771         if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
 772                 ch_info = iwl_get_channel_info(priv, channel->band,
 773                                                channel->hw_value);
 774                 if (!is_channel_valid(ch_info)) {
 775                         IWL_DEBUG_MAC80211(priv, "leave - invalid channel\n");
 776                         ret = -EINVAL;
 777                         goto out;
 778                 }
 779
 780                 for_each_context(priv, ctx) {
 781                         /* Configure HT40 channels */
 782                         if (ctx->ht.enabled != conf_is_ht(conf))
 783                                 ctx->ht.enabled = conf_is_ht(conf);
 784
 785                         if (ctx->ht.enabled) {
 786                                 /* if HT40 is used, it should not change
 787                                  * after associated except channel switch */
 788                                 if (!ctx->ht.is_40mhz ||
 789                                                 !iwl_is_associated_ctx(ctx))
 790                                         iwlagn_config_ht40(conf, ctx);
 791                         } else
 792                                 ctx->ht.is_40mhz = false;
 793
 794                         /*
 795                          * Default to no protection. Protection mode will
 796                          * later be set from BSS config in iwl_ht_conf
 797                          */
 798                         ctx->ht.protection = IEEE80211_HT_OP_MODE_PROTECTION_NONE;
 799
 800                         /* if we are switching from ht to 2.4 clear flags
 801                          * from any ht related info since 2.4 does not
 802                          * support ht */
 803                         if (le16_to_cpu(ctx->staging.channel) !=
 804                             channel->hw_value)
 805                                 ctx->staging.flags = 0;
 806
 807                         iwl_set_rxon_channel(priv, channel, ctx);
 808                         iwl_set_rxon_ht(priv, &priv->current_ht_config);
 809
 810                         iwl_set_flags_for_band(priv, ctx, channel->band,
 811                                                ctx->vif);
 812                 }
 813
 814                 iwl_update_bcast_stations(priv);
 815
 816                 /*
 817                  * The list of supported rates and rate mask can be different
 818                  * for each band; since the band may have changed, reset
 819                  * the rate mask to what mac80211 lists.
 820                  */
 821                 iwl_set_rate(priv);
 822         }
 823
 824         if (changed & (IEEE80211_CONF_CHANGE_PS |
 825                         IEEE80211_CONF_CHANGE_IDLE)) {
 826                 ret = iwl_power_update_mode(priv, false);
 827                 if (ret)
 828                         IWL_DEBUG_MAC80211(priv, "Error setting sleep level\n");
 829         }
 830
 831         if (changed & IEEE80211_CONF_CHANGE_POWER) {
 832                 IWL_DEBUG_MAC80211(priv, "TX Power old=%d new=%d\n",
 833                         priv->tx_power_user_lmt, conf->power_level);
 834
 835                 iwl_set_tx_power(priv, conf->power_level, false);
 836         }
 837
 838         for_each_context(priv, ctx) {
 839                 if (!memcmp(&ctx->staging, &ctx->active, sizeof(ctx->staging)))
 840                         continue;
 841                 iwlagn_commit_rxon(priv, ctx);
 842         }
 843  out:
 844         mutex_unlock(&priv->mutex);
 845         IWL_DEBUG_MAC80211(priv, "leave\n");
 846
 847         return ret;
 848 }
 849
 850 static void iwlagn_check_needed_chains(struct iwl_priv *priv,
 851                                        struct iwl_rxon_context *ctx,
 852                                        struct ieee80211_bss_conf *bss_conf)
 853 {
 854         struct ieee80211_vif *vif = ctx->vif;
 855         struct iwl_rxon_context *tmp;
 856         struct ieee80211_sta *sta;
 857         struct iwl_ht_config *ht_conf = &priv->current_ht_config;
 858         struct ieee80211_sta_ht_cap *ht_cap;
 859         bool need_multiple;
 860
 861         lockdep_assert_held(&priv->mutex);
 862
 863         switch (vif->type) {
 864         case NL80211_IFTYPE_STATION:
 865                 rcu_read_lock();
 866                 sta = ieee80211_find_sta(vif, bss_conf->bssid);
 867                 if (!sta) {
 868                         /*
 869                          * If at all, this can only happen through a race
 870                          * when the AP disconnects us while we're still
 871                          * setting up the connection, in that case mac80211
 872                          * will soon tell us about that.
 873                          */
 874                         need_multiple = false;
 875                         rcu_read_unlock();
 876                         break;
 877                 }
 878
 879                 ht_cap = &sta->ht_cap;
 880
 881                 need_multiple = true;
 882
 883                 /*
 884                  * If the peer advertises no support for receiving 2 and 3
 885                  * stream MCS rates, it can't be transmitting them either.
 886                  */
 887                 if (ht_cap->mcs.rx_mask[1] == 0 &&
 888                     ht_cap->mcs.rx_mask[2] == 0) {
 889                         need_multiple = false;
 890                 } else if (!(ht_cap->mcs.tx_params &
 891                                                 IEEE80211_HT_MCS_TX_DEFINED)) {
 892                         /* If it can't TX MCS at all ... */
 893                         need_multiple = false;
 894                 } else if (ht_cap->mcs.tx_params &
 895                                                 IEEE80211_HT_MCS_TX_RX_DIFF) {
 896                         int maxstreams;
 897
 898                         /*
 899                          * But if it can receive them, it might still not
 900                          * be able to transmit them, which is what we need
 901                          * to check here -- so check the number of streams
 902                          * it advertises for TX (if different from RX).
 903                          */
 904
 905                         maxstreams = (ht_cap->mcs.tx_params &
 906                                  IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK);
 907                         maxstreams >>=
 908                                 IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT;
 909                         maxstreams += 1;
 910
 911                         if (maxstreams <= 1)
 912                                 need_multiple = false;
 913                 }
 914
 915                 rcu_read_unlock();
 916                 break;
 917         case NL80211_IFTYPE_ADHOC:
 918                 /* currently */
 919                 need_multiple = false;
 920                 break;
 921         default:
 922                 /* only AP really */
 923                 need_multiple = true;
 924                 break;
 925         }
 926
 927         ctx->ht_need_multiple_chains = need_multiple;
 928
 929         if (!need_multiple) {
 930                 /* check all contexts */
 931                 for_each_context(priv, tmp) {
 932                         if (!tmp->vif)
 933                                 continue;
 934                         if (tmp->ht_need_multiple_chains) {
 935                                 need_multiple = true;
 936                                 break;
 937                         }
 938                 }
 939         }
 940
 941         ht_conf->single_chain_sufficient = !need_multiple;
 942 }
 943
 944 static void iwlagn_chain_noise_reset(struct iwl_priv *priv)
 945 {
 946         struct iwl_chain_noise_data *data = &priv->chain_noise_data;
 947         int ret;
 948
 949         if ((data->state == IWL_CHAIN_NOISE_ALIVE) &&
 950             iwl_is_any_associated(priv)) {
 951                 struct iwl_calib_chain_noise_reset_cmd cmd;
 952
 953                 /* clear data for chain noise calibration algorithm */
 954                 data->chain_noise_a = 0;
 955                 data->chain_noise_b = 0;
 956                 data->chain_noise_c = 0;
 957                 data->chain_signal_a = 0;
 958                 data->chain_signal_b = 0;
 959                 data->chain_signal_c = 0;
 960                 data->beacon_count = 0;
 961
 962                 memset(&cmd, 0, sizeof(cmd));
 963                 iwl_set_calib_hdr(&cmd.hdr,
 964                         priv->phy_calib_chain_noise_reset_cmd);
 965                 ret = iwl_dvm_send_cmd_pdu(priv,
 966                                         REPLY_PHY_CALIBRATION_CMD,
 967                                         CMD_SYNC, sizeof(cmd), &cmd);
 968                 if (ret)
 969                         IWL_ERR(priv,
 970                                 "Could not send REPLY_PHY_CALIBRATION_CMD\n");
 971                 data->state = IWL_CHAIN_NOISE_ACCUMULATE;
 972                 IWL_DEBUG_CALIB(priv, "Run chain_noise_calibrate\n");
 973         }
 974 }
 975
 976 void iwlagn_bss_info_changed(struct ieee80211_hw *hw,
 977                              struct ieee80211_vif *vif,
 978                              struct ieee80211_bss_conf *bss_conf,
 979                              u32 changes)
 980 {
 981         struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
 982         struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif);
 983         int ret;
 984         bool force = false;
 985
 986         mutex_lock(&priv->mutex);
 987
 988         if (unlikely(!iwl_is_ready(priv))) {
 989                 IWL_DEBUG_MAC80211(priv, "leave - not ready\n");
 990                 mutex_unlock(&priv->mutex);
 991                 return;
 992         }
 993
 994         if (unlikely(!ctx->vif)) {
 995                 IWL_DEBUG_MAC80211(priv, "leave - vif is NULL\n");
 996                 mutex_unlock(&priv->mutex);
 997                 return;
 998         }
 999
1000         if (changes & BSS_CHANGED_BEACON_INT)
1001                 force = true;
1002
1003         if (changes & BSS_CHANGED_QOS) {
1004                 ctx->qos_data.qos_active = bss_conf->qos;
1005                 iwlagn_update_qos(priv, ctx);
1006         }
1007
1008         ctx->staging.assoc_id = cpu_to_le16(vif->bss_conf.aid);
1009         if (vif->bss_conf.use_short_preamble)
1010                 ctx->staging.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
1011         else
1012                 ctx->staging.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
1013
1014         if (changes & BSS_CHANGED_ASSOC) {
1015                 if (bss_conf->assoc) {
1016                         priv->timestamp = bss_conf->last_tsf;
1017                         ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK;
1018                 } else {
1019                         /*
1020                          * If we disassociate while there are pending
1021                          * frames, just wake up the queues and let the
1022                          * frames "escape" ... This shouldn't really
1023                          * be happening to start with, but we should
1024                          * not get stuck in this case either since it
1025                          * can happen if userspace gets confused.
1026                          */
1027                         iwlagn_lift_passive_no_rx(priv);
1028
1029                         ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
1030
1031                         if (ctx->ctxid == IWL_RXON_CTX_BSS)
1032                                 priv->have_rekey_data = false;
1033                 }
1034
1035                 iwlagn_bt_coex_rssi_monitor(priv);
1036         }
1037
1038         if (ctx->ht.enabled) {
1039                 ctx->ht.protection = bss_conf->ht_operation_mode &
1040                                         IEEE80211_HT_OP_MODE_PROTECTION;
1041                 ctx->ht.non_gf_sta_present = !!(bss_conf->ht_operation_mode &
1042                                         IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT);
1043                 iwlagn_check_needed_chains(priv, ctx, bss_conf);
1044                 iwl_set_rxon_ht(priv, &priv->current_ht_config);
1045         }
1046
1047         iwlagn_set_rxon_chain(priv, ctx);
1048
1049         if (bss_conf->use_cts_prot && (priv->band != IEEE80211_BAND_5GHZ))
1050                 ctx->staging.flags |= RXON_FLG_TGG_PROTECT_MSK;
1051         else
1052                 ctx->staging.flags &= ~RXON_FLG_TGG_PROTECT_MSK;
1053
1054         if (bss_conf->use_cts_prot)
1055                 ctx->staging.flags |= RXON_FLG_SELF_CTS_EN;
1056         else
1057                 ctx->staging.flags &= ~RXON_FLG_SELF_CTS_EN;
1058
1059         memcpy(ctx->staging.bssid_addr, bss_conf->bssid, ETH_ALEN);
1060
1061         if (vif->type == NL80211_IFTYPE_AP ||
1062             vif->type == NL80211_IFTYPE_ADHOC) {
1063                 if (vif->bss_conf.enable_beacon) {
1064                         ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK;
1065                         priv->beacon_ctx = ctx;
1066                 } else {
1067                         ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
1068                         priv->beacon_ctx = NULL;
1069                 }
1070         }
1071
1072         /*
1073          * If the ucode decides to do beacon filtering before
1074          * association, it will lose beacons that are needed
1075          * before sending frames out on passive channels. This
1076          * causes association failures on those channels. Enable
1077          * receiving beacons in such cases.
1078          */
1079
1080         if (vif->type == NL80211_IFTYPE_STATION) {
1081                 if (!bss_conf->assoc)
1082                         ctx->staging.filter_flags |= RXON_FILTER_BCON_AWARE_MSK;
1083                 else
1084                         ctx->staging.filter_flags &=
1085                                                     ~RXON_FILTER_BCON_AWARE_MSK;
1086         }
1087
1088         if (force || memcmp(&ctx->staging, &ctx->active, sizeof(ctx->staging)))
1089                 iwlagn_commit_rxon(priv, ctx);
1090
1091         if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc) {
1092                 /*
1093                  * The chain noise calibration will enable PM upon
1094                  * completion. If calibration has already been run
1095                  * then we need to enable power management here.
1096                  */
1097                 if (priv->chain_noise_data.state == IWL_CHAIN_NOISE_DONE)
1098                         iwl_power_update_mode(priv, false);
1099
1100                 /* Enable RX differential gain and sensitivity calibrations */
1101                 if (!priv->disable_chain_noise_cal)
1102                         iwlagn_chain_noise_reset(priv);
1103                 priv->start_calib = 1;
1104         }
1105
1106         if (changes & BSS_CHANGED_IBSS) {
1107                 ret = iwlagn_manage_ibss_station(priv, vif,
1108                                                  bss_conf->ibss_joined);
1109                 if (ret)
1110                         IWL_ERR(priv, "failed to %s IBSS station %pM\n",
1111                                 bss_conf->ibss_joined ? "add" : "remove",
1112                                 bss_conf->bssid);
1113         }
1114
1115         if (changes & BSS_CHANGED_BEACON && vif->type == NL80211_IFTYPE_ADHOC &&
1116             priv->beacon_ctx) {
1117                 if (iwlagn_update_beacon(priv, vif))
1118                         IWL_ERR(priv, "Error sending IBSS beacon\n");
1119         }
1120
1121         mutex_unlock(&priv->mutex);
1122 }
1123
1124 void iwlagn_post_scan(struct iwl_priv *priv)
1125 {
1126         struct iwl_rxon_context *ctx;
1127
1128         /*
1129          * We do not commit power settings while scan is pending,
1130          * do it now if the settings changed.
1131          */
1132         iwl_power_set_mode(priv, &priv->power_data.sleep_cmd_next, false);
1133         iwl_set_tx_power(priv, priv->tx_power_next, false);
1134
1135         /*
1136          * Since setting the RXON may have been deferred while
1137          * performing the scan, fire one off if needed
1138          */
1139         for_each_context(priv, ctx)
1140                 if (memcmp(&ctx->staging, &ctx->active, sizeof(ctx->staging)))
1141                         iwlagn_commit_rxon(priv, ctx);
1142
1143         iwlagn_set_pan_params(priv);
1144 }