drivers/net/wireless/ath/ath9k/htc_drv_main.c

   1 /*
   2  * Copyright (c) 2010-2011 Atheros Communications Inc.
   3  *
   4  * Permission to use, copy, modify, and/or distribute this software for any
   5  * purpose with or without fee is hereby granted, provided that the above
   6  * copyright notice and this permission notice appear in all copies.
   7  *
   8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15  */
  16
  17 #include "htc.h"
  18
  19 /*************/
  20 /* Utilities */
  21 /*************/
  22
  23 /* HACK Alert: Use 11NG for 2.4, use 11NA for 5 */
  24 static enum htc_phymode ath9k_htc_get_curmode(struct ath9k_htc_priv *priv,
  25                                               struct ath9k_channel *ichan)
  26 {
  27         enum htc_phymode mode;
  28
  29         mode = -EINVAL;
  30
  31         switch (ichan->chanmode) {
  32         case CHANNEL_G:
  33         case CHANNEL_G_HT20:
  34         case CHANNEL_G_HT40PLUS:
  35         case CHANNEL_G_HT40MINUS:
  36                 mode = HTC_MODE_11NG;
  37                 break;
  38         case CHANNEL_A:
  39         case CHANNEL_A_HT20:
  40         case CHANNEL_A_HT40PLUS:
  41         case CHANNEL_A_HT40MINUS:
  42                 mode = HTC_MODE_11NA;
  43                 break;
  44         default:
  45                 break;
  46         }
  47
  48         WARN_ON(mode < 0);
  49
  50         return mode;
  51 }
  52
  53 bool ath9k_htc_setpower(struct ath9k_htc_priv *priv,
  54                         enum ath9k_power_mode mode)
  55 {
  56         bool ret;
  57
  58         mutex_lock(&priv->htc_pm_lock);
  59         ret = ath9k_hw_setpower(priv->ah, mode);
  60         mutex_unlock(&priv->htc_pm_lock);
  61
  62         return ret;
  63 }
  64
  65 void ath9k_htc_ps_wakeup(struct ath9k_htc_priv *priv)
  66 {
  67         mutex_lock(&priv->htc_pm_lock);
  68         if (++priv->ps_usecount != 1)
  69                 goto unlock;
  70         ath9k_hw_setpower(priv->ah, ATH9K_PM_AWAKE);
  71
  72 unlock:
  73         mutex_unlock(&priv->htc_pm_lock);
  74 }
  75
  76 void ath9k_htc_ps_restore(struct ath9k_htc_priv *priv)
  77 {
  78         mutex_lock(&priv->htc_pm_lock);
  79         if (--priv->ps_usecount != 0)
  80                 goto unlock;
  81
  82         if (priv->ps_idle)
  83                 ath9k_hw_setpower(priv->ah, ATH9K_PM_FULL_SLEEP);
  84         else if (priv->ps_enabled)
  85                 ath9k_hw_setpower(priv->ah, ATH9K_PM_NETWORK_SLEEP);
  86
  87 unlock:
  88         mutex_unlock(&priv->htc_pm_lock);
  89 }
  90
  91 void ath9k_ps_work(struct work_struct *work)
  92 {
  93         struct ath9k_htc_priv *priv =
  94                 container_of(work, struct ath9k_htc_priv,
  95                              ps_work);
  96         ath9k_htc_setpower(priv, ATH9K_PM_AWAKE);
  97
  98         /* The chip wakes up after receiving the first beacon
  99            while network sleep is enabled. For the driver to
 100            be in sync with the hw, set the chip to awake and
 101            only then set it to sleep.
 102          */
 103         ath9k_htc_setpower(priv, ATH9K_PM_NETWORK_SLEEP);
 104 }
 105
 106 static void ath9k_htc_vif_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
 107 {
 108         struct ath9k_htc_priv *priv = data;
 109         struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
 110
 111         if ((vif->type == NL80211_IFTYPE_AP) && bss_conf->enable_beacon)
 112                 priv->reconfig_beacon = true;
 113
 114         if (bss_conf->assoc) {
 115                 priv->rearm_ani = true;
 116                 priv->reconfig_beacon = true;
 117         }
 118 }
 119
 120 static void ath9k_htc_vif_reconfig(struct ath9k_htc_priv *priv)
 121 {
 122         priv->rearm_ani = false;
 123         priv->reconfig_beacon = false;
 124
 125         ieee80211_iterate_active_interfaces_atomic(priv->hw,
 126                                                    ath9k_htc_vif_iter, priv);
 127         if (priv->rearm_ani)
 128                 ath9k_htc_start_ani(priv);
 129
 130         if (priv->reconfig_beacon) {
 131                 ath9k_htc_ps_wakeup(priv);
 132                 ath9k_htc_beacon_reconfig(priv);
 133                 ath9k_htc_ps_restore(priv);
 134         }
 135 }
 136
 137 static void ath9k_htc_bssid_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
 138 {
 139         struct ath9k_vif_iter_data *iter_data = data;
 140         int i;
 141
 142         for (i = 0; i < ETH_ALEN; i++)
 143                 iter_data->mask[i] &= ~(iter_data->hw_macaddr[i] ^ mac[i]);
 144 }
 145
 146 static void ath9k_htc_set_bssid_mask(struct ath9k_htc_priv *priv,
 147                                      struct ieee80211_vif *vif)
 148 {
 149         struct ath_common *common = ath9k_hw_common(priv->ah);
 150         struct ath9k_vif_iter_data iter_data;
 151
 152         /*
 153          * Use the hardware MAC address as reference, the hardware uses it
 154          * together with the BSSID mask when matching addresses.
 155          */
 156         iter_data.hw_macaddr = common->macaddr;
 157         memset(&iter_data.mask, 0xff, ETH_ALEN);
 158
 159         if (vif)
 160                 ath9k_htc_bssid_iter(&iter_data, vif->addr, vif);
 161
 162         /* Get list of all active MAC addresses */
 163         ieee80211_iterate_active_interfaces_atomic(priv->hw, ath9k_htc_bssid_iter,
 164                                                    &iter_data);
 165
 166         memcpy(common->bssidmask, iter_data.mask, ETH_ALEN);
 167         ath_hw_setbssidmask(common);
 168 }
 169
 170 static void ath9k_htc_set_opmode(struct ath9k_htc_priv *priv)
 171 {
 172         if (priv->num_ibss_vif)
 173                 priv->ah->opmode = NL80211_IFTYPE_ADHOC;
 174         else if (priv->num_ap_vif)
 175                 priv->ah->opmode = NL80211_IFTYPE_AP;
 176         else
 177                 priv->ah->opmode = NL80211_IFTYPE_STATION;
 178
 179         ath9k_hw_setopmode(priv->ah);
 180 }
 181
 182 void ath9k_htc_reset(struct ath9k_htc_priv *priv)
 183 {
 184         struct ath_hw *ah = priv->ah;
 185         struct ath_common *common = ath9k_hw_common(ah);
 186         struct ieee80211_channel *channel = priv->hw->conf.channel;
 187         struct ath9k_hw_cal_data *caldata = NULL;
 188         enum htc_phymode mode;
 189         __be16 htc_mode;
 190         u8 cmd_rsp;
 191         int ret;
 192
 193         mutex_lock(&priv->mutex);
 194         ath9k_htc_ps_wakeup(priv);
 195
 196         ath9k_htc_stop_ani(priv);
 197         ieee80211_stop_queues(priv->hw);
 198
 199         del_timer_sync(&priv->tx.cleanup_timer);
 200         ath9k_htc_tx_drain(priv);
 201
 202         WMI_CMD(WMI_DISABLE_INTR_CMDID);
 203         WMI_CMD(WMI_DRAIN_TXQ_ALL_CMDID);
 204         WMI_CMD(WMI_STOP_RECV_CMDID);
 205
 206         ath9k_wmi_event_drain(priv);
 207
 208         caldata = &priv->caldata;
 209         ret = ath9k_hw_reset(ah, ah->curchan, caldata, false);
 210         if (ret) {
 211                 ath_err(common,
 212                         "Unable to reset device (%u Mhz) reset status %d\n",
 213                         channel->center_freq, ret);
 214         }
 215
 216         ath9k_cmn_update_txpow(ah, priv->curtxpow, priv->txpowlimit,
 217                                &priv->curtxpow);
 218
 219         WMI_CMD(WMI_START_RECV_CMDID);
 220         ath9k_host_rx_init(priv);
 221
 222         mode = ath9k_htc_get_curmode(priv, ah->curchan);
 223         htc_mode = cpu_to_be16(mode);
 224         WMI_CMD_BUF(WMI_SET_MODE_CMDID, &htc_mode);
 225
 226         WMI_CMD(WMI_ENABLE_INTR_CMDID);
 227         htc_start(priv->htc);
 228         ath9k_htc_vif_reconfig(priv);
 229         ieee80211_wake_queues(priv->hw);
 230
 231         mod_timer(&priv->tx.cleanup_timer,
 232                   jiffies + msecs_to_jiffies(ATH9K_HTC_TX_CLEANUP_INTERVAL));
 233
 234         ath9k_htc_ps_restore(priv);
 235         mutex_unlock(&priv->mutex);
 236 }
 237
 238 static int ath9k_htc_set_channel(struct ath9k_htc_priv *priv,
 239                                  struct ieee80211_hw *hw,
 240                                  struct ath9k_channel *hchan)
 241 {
 242         struct ath_hw *ah = priv->ah;
 243         struct ath_common *common = ath9k_hw_common(ah);
 244         struct ieee80211_conf *conf = &common->hw->conf;
 245         bool fastcc;
 246         struct ieee80211_channel *channel = hw->conf.channel;
 247         struct ath9k_hw_cal_data *caldata = NULL;
 248         enum htc_phymode mode;
 249         __be16 htc_mode;
 250         u8 cmd_rsp;
 251         int ret;
 252
 253         if (priv->op_flags & OP_INVALID)
 254                 return -EIO;
 255
 256         fastcc = !!(hw->conf.flags & IEEE80211_CONF_OFFCHANNEL);
 257
 258         ath9k_htc_ps_wakeup(priv);
 259
 260         del_timer_sync(&priv->tx.cleanup_timer);
 261         ath9k_htc_tx_drain(priv);
 262
 263         WMI_CMD(WMI_DISABLE_INTR_CMDID);
 264         WMI_CMD(WMI_DRAIN_TXQ_ALL_CMDID);
 265         WMI_CMD(WMI_STOP_RECV_CMDID);
 266
 267         ath9k_wmi_event_drain(priv);
 268
 269         ath_dbg(common, CONFIG,
 270                 "(%u MHz) -> (%u MHz), HT: %d, HT40: %d fastcc: %d\n",
 271                 priv->ah->curchan->channel,
 272                 channel->center_freq, conf_is_ht(conf), conf_is_ht40(conf),
 273                 fastcc);
 274
 275         if (!fastcc)
 276                 caldata = &priv->caldata;
 277
 278         ret = ath9k_hw_reset(ah, hchan, caldata, fastcc);
 279         if (ret) {
 280                 ath_err(common,
 281                         "Unable to reset channel (%u Mhz) reset status %d\n",
 282                         channel->center_freq, ret);
 283                 goto err;
 284         }
 285
 286         ath9k_cmn_update_txpow(ah, priv->curtxpow, priv->txpowlimit,
 287                                &priv->curtxpow);
 288
 289         WMI_CMD(WMI_START_RECV_CMDID);
 290         if (ret)
 291                 goto err;
 292
 293         ath9k_host_rx_init(priv);
 294
 295         mode = ath9k_htc_get_curmode(priv, hchan);
 296         htc_mode = cpu_to_be16(mode);
 297         WMI_CMD_BUF(WMI_SET_MODE_CMDID, &htc_mode);
 298         if (ret)
 299                 goto err;
 300
 301         WMI_CMD(WMI_ENABLE_INTR_CMDID);
 302         if (ret)
 303                 goto err;
 304
 305         htc_start(priv->htc);
 306
 307         if (!(priv->op_flags & OP_SCANNING) &&
 308             !(hw->conf.flags & IEEE80211_CONF_OFFCHANNEL))
 309                 ath9k_htc_vif_reconfig(priv);
 310
 311         mod_timer(&priv->tx.cleanup_timer,
 312                   jiffies + msecs_to_jiffies(ATH9K_HTC_TX_CLEANUP_INTERVAL));
 313
 314 err:
 315         ath9k_htc_ps_restore(priv);
 316         return ret;
 317 }
 318
 319 /*
 320  * Monitor mode handling is a tad complicated because the firmware requires
 321  * an interface to be created exclusively, while mac80211 doesn't associate
 322  * an interface with the mode.
 323  *
 324  * So, for now, only one monitor interface can be configured.
 325  */
 326 static void __ath9k_htc_remove_monitor_interface(struct ath9k_htc_priv *priv)
 327 {
 328         struct ath_common *common = ath9k_hw_common(priv->ah);
 329         struct ath9k_htc_target_vif hvif;
 330         int ret = 0;
 331         u8 cmd_rsp;
 332
 333         memset(&hvif, 0, sizeof(struct ath9k_htc_target_vif));
 334         memcpy(&hvif.myaddr, common->macaddr, ETH_ALEN);
 335         hvif.index = priv->mon_vif_idx;
 336         WMI_CMD_BUF(WMI_VAP_REMOVE_CMDID, &hvif);
 337         if (ret) {
 338                 ath_err(common, "Unable to remove monitor interface at idx: %d\n",
 339                         priv->mon_vif_idx);
 340         }
 341
 342         priv->nvifs--;
 343         priv->vif_slot &= ~(1 << priv->mon_vif_idx);
 344 }
 345
 346 static int ath9k_htc_add_monitor_interface(struct ath9k_htc_priv *priv)
 347 {
 348         struct ath_common *common = ath9k_hw_common(priv->ah);
 349         struct ath9k_htc_target_vif hvif;
 350         struct ath9k_htc_target_sta tsta;
 351         int ret = 0, sta_idx;
 352         u8 cmd_rsp;
 353
 354         if ((priv->nvifs >= ATH9K_HTC_MAX_VIF) ||
 355             (priv->nstations >= ATH9K_HTC_MAX_STA)) {
 356                 ret = -ENOBUFS;
 357                 goto err_vif;
 358         }
 359
 360         sta_idx = ffz(priv->sta_slot);
 361         if ((sta_idx < 0) || (sta_idx > ATH9K_HTC_MAX_STA)) {
 362                 ret = -ENOBUFS;
 363                 goto err_vif;
 364         }
 365
 366         /*
 367          * Add an interface.
 368          */
 369         memset(&hvif, 0, sizeof(struct ath9k_htc_target_vif));
 370         memcpy(&hvif.myaddr, common->macaddr, ETH_ALEN);
 371
 372         hvif.opmode = HTC_M_MONITOR;
 373         hvif.index = ffz(priv->vif_slot);
 374
 375         WMI_CMD_BUF(WMI_VAP_CREATE_CMDID, &hvif);
 376         if (ret)
 377                 goto err_vif;
 378
 379         /*
 380          * Assign the monitor interface index as a special case here.
 381          * This is needed when the interface is brought down.
 382          */
 383         priv->mon_vif_idx = hvif.index;
 384         priv->vif_slot |= (1 << hvif.index);
 385
 386         /*
 387          * Set the hardware mode to monitor only if there are no
 388          * other interfaces.
 389          */
 390         if (!priv->nvifs)
 391                 priv->ah->opmode = NL80211_IFTYPE_MONITOR;
 392
 393         priv->nvifs++;
 394
 395         /*
 396          * Associate a station with the interface for packet injection.
 397          */
 398         memset(&tsta, 0, sizeof(struct ath9k_htc_target_sta));
 399
 400         memcpy(&tsta.macaddr, common->macaddr, ETH_ALEN);
 401
 402         tsta.is_vif_sta = 1;
 403         tsta.sta_index = sta_idx;
 404         tsta.vif_index = hvif.index;
 405         tsta.maxampdu = cpu_to_be16(0xffff);
 406
 407         WMI_CMD_BUF(WMI_NODE_CREATE_CMDID, &tsta);
 408         if (ret) {
 409                 ath_err(common, "Unable to add station entry for monitor mode\n");
 410                 goto err_sta;
 411         }
 412
 413         priv->sta_slot |= (1 << sta_idx);
 414         priv->nstations++;
 415         priv->vif_sta_pos[priv->mon_vif_idx] = sta_idx;
 416         priv->ah->is_monitoring = true;
 417
 418         ath_dbg(common, CONFIG,
 419                 "Attached a monitor interface at idx: %d, sta idx: %d\n",
 420                 priv->mon_vif_idx, sta_idx);
 421
 422         return 0;
 423
 424 err_sta:
 425         /*
 426          * Remove the interface from the target.
 427          */
 428         __ath9k_htc_remove_monitor_interface(priv);
 429 err_vif:
 430         ath_dbg(common, FATAL, "Unable to attach a monitor interface\n");
 431
 432         return ret;
 433 }
 434
 435 static int ath9k_htc_remove_monitor_interface(struct ath9k_htc_priv *priv)
 436 {
 437         struct ath_common *common = ath9k_hw_common(priv->ah);
 438         int ret = 0;
 439         u8 cmd_rsp, sta_idx;
 440
 441         __ath9k_htc_remove_monitor_interface(priv);
 442
 443         sta_idx = priv->vif_sta_pos[priv->mon_vif_idx];
 444
 445         WMI_CMD_BUF(WMI_NODE_REMOVE_CMDID, &sta_idx);
 446         if (ret) {
 447                 ath_err(common, "Unable to remove station entry for monitor mode\n");
 448                 return ret;
 449         }
 450
 451         priv->sta_slot &= ~(1 << sta_idx);
 452         priv->nstations--;
 453         priv->ah->is_monitoring = false;
 454
 455         ath_dbg(common, CONFIG,
 456                 "Removed a monitor interface at idx: %d, sta idx: %d\n",
 457                 priv->mon_vif_idx, sta_idx);
 458
 459         return 0;
 460 }
 461
 462 static int ath9k_htc_add_station(struct ath9k_htc_priv *priv,
 463                                  struct ieee80211_vif *vif,
 464                                  struct ieee80211_sta *sta)
 465 {
 466         struct ath_common *common = ath9k_hw_common(priv->ah);
 467         struct ath9k_htc_target_sta tsta;
 468         struct ath9k_htc_vif *avp = (struct ath9k_htc_vif *) vif->drv_priv;
 469         struct ath9k_htc_sta *ista;
 470         int ret, sta_idx;
 471         u8 cmd_rsp;
 472         u16 maxampdu;
 473
 474         if (priv->nstations >= ATH9K_HTC_MAX_STA)
 475                 return -ENOBUFS;
 476
 477         sta_idx = ffz(priv->sta_slot);
 478         if ((sta_idx < 0) || (sta_idx > ATH9K_HTC_MAX_STA))
 479                 return -ENOBUFS;
 480
 481         memset(&tsta, 0, sizeof(struct ath9k_htc_target_sta));
 482
 483         if (sta) {
 484                 ista = (struct ath9k_htc_sta *) sta->drv_priv;
 485                 memcpy(&tsta.macaddr, sta->addr, ETH_ALEN);
 486                 memcpy(&tsta.bssid, common->curbssid, ETH_ALEN);
 487                 tsta.is_vif_sta = 0;
 488                 ista->index = sta_idx;
 489         } else {
 490                 memcpy(&tsta.macaddr, vif->addr, ETH_ALEN);
 491                 tsta.is_vif_sta = 1;
 492         }
 493
 494         tsta.sta_index = sta_idx;
 495         tsta.vif_index = avp->index;
 496
 497         if (!sta) {
 498                 tsta.maxampdu = cpu_to_be16(0xffff);
 499         } else {
 500                 maxampdu = 1 << (IEEE80211_HT_MAX_AMPDU_FACTOR +
 501                                  sta->ht_cap.ampdu_factor);
 502                 tsta.maxampdu = cpu_to_be16(maxampdu);
 503         }
 504
 505         WMI_CMD_BUF(WMI_NODE_CREATE_CMDID, &tsta);
 506         if (ret) {
 507                 if (sta)
 508                         ath_err(common,
 509                                 "Unable to add station entry for: %pM\n",
 510                                 sta->addr);
 511                 return ret;
 512         }
 513
 514         if (sta) {
 515                 ath_dbg(common, CONFIG,
 516                         "Added a station entry for: %pM (idx: %d)\n",
 517                         sta->addr, tsta.sta_index);
 518         } else {
 519                 ath_dbg(common, CONFIG,
 520                         "Added a station entry for VIF %d (idx: %d)\n",
 521                         avp->index, tsta.sta_index);
 522         }
 523
 524         priv->sta_slot |= (1 << sta_idx);
 525         priv->nstations++;
 526         if (!sta)
 527                 priv->vif_sta_pos[avp->index] = sta_idx;
 528
 529         return 0;
 530 }
 531
 532 static int ath9k_htc_remove_station(struct ath9k_htc_priv *priv,
 533                                     struct ieee80211_vif *vif,
 534                                     struct ieee80211_sta *sta)
 535 {
 536         struct ath_common *common = ath9k_hw_common(priv->ah);
 537         struct ath9k_htc_vif *avp = (struct ath9k_htc_vif *) vif->drv_priv;
 538         struct ath9k_htc_sta *ista;
 539         int ret;
 540         u8 cmd_rsp, sta_idx;
 541
 542         if (sta) {
 543                 ista = (struct ath9k_htc_sta *) sta->drv_priv;
 544                 sta_idx = ista->index;
 545         } else {
 546                 sta_idx = priv->vif_sta_pos[avp->index];
 547         }
 548
 549         WMI_CMD_BUF(WMI_NODE_REMOVE_CMDID, &sta_idx);
 550         if (ret) {
 551                 if (sta)
 552                         ath_err(common,
 553                                 "Unable to remove station entry for: %pM\n",
 554                                 sta->addr);
 555                 return ret;
 556         }
 557
 558         if (sta) {
 559                 ath_dbg(common, CONFIG,
 560                         "Removed a station entry for: %pM (idx: %d)\n",
 561                         sta->addr, sta_idx);
 562         } else {
 563                 ath_dbg(common, CONFIG,
 564                         "Removed a station entry for VIF %d (idx: %d)\n",
 565                         avp->index, sta_idx);
 566         }
 567
 568         priv->sta_slot &= ~(1 << sta_idx);
 569         priv->nstations--;
 570
 571         return 0;
 572 }
 573
 574 int ath9k_htc_update_cap_target(struct ath9k_htc_priv *priv,
 575                                 u8 enable_coex)
 576 {
 577         struct ath9k_htc_cap_target tcap;
 578         int ret;
 579         u8 cmd_rsp;
 580
 581         memset(&tcap, 0, sizeof(struct ath9k_htc_cap_target));
 582
 583         tcap.ampdu_limit = cpu_to_be32(0xffff);
 584         tcap.ampdu_subframes = 0xff;
 585         tcap.enable_coex = enable_coex;
 586         tcap.tx_chainmask = priv->ah->caps.tx_chainmask;
 587
 588         WMI_CMD_BUF(WMI_TARGET_IC_UPDATE_CMDID, &tcap);
 589
 590         return ret;
 591 }
 592
 593 static void ath9k_htc_setup_rate(struct ath9k_htc_priv *priv,
 594                                  struct ieee80211_sta *sta,
 595                                  struct ath9k_htc_target_rate *trate)
 596 {
 597         struct ath9k_htc_sta *ista = (struct ath9k_htc_sta *) sta->drv_priv;
 598         struct ieee80211_supported_band *sband;
 599         u32 caps = 0;
 600         int i, j;
 601
 602         sband = priv->hw->wiphy->bands[priv->hw->conf.channel->band];
 603
 604         for (i = 0, j = 0; i < sband->n_bitrates; i++) {
 605                 if (sta->supp_rates[sband->band] & BIT(i)) {
 606                         trate->rates.legacy_rates.rs_rates[j]
 607                                 = (sband->bitrates[i].bitrate * 2) / 10;
 608                         j++;
 609                 }
 610         }
 611         trate->rates.legacy_rates.rs_nrates = j;
 612
 613         if (sta->ht_cap.ht_supported) {
 614                 for (i = 0, j = 0; i < 77; i++) {
 615                         if (sta->ht_cap.mcs.rx_mask[i/8] & (1<<(i%8)))
 616                                 trate->rates.ht_rates.rs_rates[j++] = i;
 617                         if (j == ATH_HTC_RATE_MAX)
 618                                 break;
 619                 }
 620                 trate->rates.ht_rates.rs_nrates = j;
 621
 622                 caps = WLAN_RC_HT_FLAG;
 623                 if (sta->ht_cap.mcs.rx_mask[1])
 624                         caps |= WLAN_RC_DS_FLAG;
 625                 if ((sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) &&
 626                      (conf_is_ht40(&priv->hw->conf)))
 627                         caps |= WLAN_RC_40_FLAG;
 628                 if (conf_is_ht40(&priv->hw->conf) &&
 629                     (sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40))
 630                         caps |= WLAN_RC_SGI_FLAG;
 631                 else if (conf_is_ht20(&priv->hw->conf) &&
 632                          (sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20))
 633                         caps |= WLAN_RC_SGI_FLAG;
 634         }
 635
 636         trate->sta_index = ista->index;
 637         trate->isnew = 1;
 638         trate->capflags = cpu_to_be32(caps);
 639 }
 640
 641 static int ath9k_htc_send_rate_cmd(struct ath9k_htc_priv *priv,
 642                                     struct ath9k_htc_target_rate *trate)
 643 {
 644         struct ath_common *common = ath9k_hw_common(priv->ah);
 645         int ret;
 646         u8 cmd_rsp;
 647
 648         WMI_CMD_BUF(WMI_RC_RATE_UPDATE_CMDID, trate);
 649         if (ret) {
 650                 ath_err(common,
 651                         "Unable to initialize Rate information on target\n");
 652         }
 653
 654         return ret;
 655 }
 656
 657 static void ath9k_htc_init_rate(struct ath9k_htc_priv *priv,
 658                                 struct ieee80211_sta *sta)
 659 {
 660         struct ath_common *common = ath9k_hw_common(priv->ah);
 661         struct ath9k_htc_target_rate trate;
 662         int ret;
 663
 664         memset(&trate, 0, sizeof(struct ath9k_htc_target_rate));
 665         ath9k_htc_setup_rate(priv, sta, &trate);
 666         ret = ath9k_htc_send_rate_cmd(priv, &trate);
 667         if (!ret)
 668                 ath_dbg(common, CONFIG,
 669                         "Updated target sta: %pM, rate caps: 0x%X\n",
 670                         sta->addr, be32_to_cpu(trate.capflags));
 671 }
 672
 673 static void ath9k_htc_update_rate(struct ath9k_htc_priv *priv,
 674                                   struct ieee80211_vif *vif,
 675                                   struct ieee80211_bss_conf *bss_conf)
 676 {
 677         struct ath_common *common = ath9k_hw_common(priv->ah);
 678         struct ath9k_htc_target_rate trate;
 679         struct ieee80211_sta *sta;
 680         int ret;
 681
 682         memset(&trate, 0, sizeof(struct ath9k_htc_target_rate));
 683
 684         rcu_read_lock();
 685         sta = ieee80211_find_sta(vif, bss_conf->bssid);
 686         if (!sta) {
 687                 rcu_read_unlock();
 688                 return;
 689         }
 690         ath9k_htc_setup_rate(priv, sta, &trate);
 691         rcu_read_unlock();
 692
 693         ret = ath9k_htc_send_rate_cmd(priv, &trate);
 694         if (!ret)
 695                 ath_dbg(common, CONFIG,
 696                         "Updated target sta: %pM, rate caps: 0x%X\n",
 697                         bss_conf->bssid, be32_to_cpu(trate.capflags));
 698 }
 699
 700 static int ath9k_htc_tx_aggr_oper(struct ath9k_htc_priv *priv,
 701                                   struct ieee80211_vif *vif,
 702                                   struct ieee80211_sta *sta,
 703                                   enum ieee80211_ampdu_mlme_action action,
 704                                   u16 tid)
 705 {
 706         struct ath_common *common = ath9k_hw_common(priv->ah);
 707         struct ath9k_htc_target_aggr aggr;
 708         struct ath9k_htc_sta *ista;
 709         int ret = 0;
 710         u8 cmd_rsp;
 711
 712         if (tid >= ATH9K_HTC_MAX_TID)
 713                 return -EINVAL;
 714
 715         memset(&aggr, 0, sizeof(struct ath9k_htc_target_aggr));
 716         ista = (struct ath9k_htc_sta *) sta->drv_priv;
 717
 718         aggr.sta_index = ista->index;
 719         aggr.tidno = tid & 0xf;
 720         aggr.aggr_enable = (action == IEEE80211_AMPDU_TX_START) ? true : false;
 721
 722         WMI_CMD_BUF(WMI_TX_AGGR_ENABLE_CMDID, &aggr);
 723         if (ret)
 724                 ath_dbg(common, CONFIG,
 725                         "Unable to %s TX aggregation for (%pM, %d)\n",
 726                         (aggr.aggr_enable) ? "start" : "stop", sta->addr, tid);
 727         else
 728                 ath_dbg(common, CONFIG,
 729                         "%s TX aggregation for (%pM, %d)\n",
 730                         (aggr.aggr_enable) ? "Starting" : "Stopping",
 731                         sta->addr, tid);
 732
 733         spin_lock_bh(&priv->tx.tx_lock);
 734         ista->tid_state[tid] = (aggr.aggr_enable && !ret) ? AGGR_START : AGGR_STOP;
 735         spin_unlock_bh(&priv->tx.tx_lock);
 736
 737         return ret;
 738 }
 739
 740 /*******/
 741 /* ANI */
 742 /*******/
 743
 744 void ath9k_htc_start_ani(struct ath9k_htc_priv *priv)
 745 {
 746         struct ath_common *common = ath9k_hw_common(priv->ah);
 747         unsigned long timestamp = jiffies_to_msecs(jiffies);
 748
 749         common->ani.longcal_timer = timestamp;
 750         common->ani.shortcal_timer = timestamp;
 751         common->ani.checkani_timer = timestamp;
 752
 753         priv->op_flags |= OP_ANI_RUNNING;
 754
 755         ieee80211_queue_delayed_work(common->hw, &priv->ani_work,
 756                                      msecs_to_jiffies(ATH_ANI_POLLINTERVAL));
 757 }
 758
 759 void ath9k_htc_stop_ani(struct ath9k_htc_priv *priv)
 760 {
 761         cancel_delayed_work_sync(&priv->ani_work);
 762         priv->op_flags &= ~OP_ANI_RUNNING;
 763 }
 764
 765 void ath9k_htc_ani_work(struct work_struct *work)
 766 {
 767         struct ath9k_htc_priv *priv =
 768                 container_of(work, struct ath9k_htc_priv, ani_work.work);
 769         struct ath_hw *ah = priv->ah;
 770         struct ath_common *common = ath9k_hw_common(ah);
 771         bool longcal = false;
 772         bool shortcal = false;
 773         bool aniflag = false;
 774         unsigned int timestamp = jiffies_to_msecs(jiffies);
 775         u32 cal_interval, short_cal_interval;
 776
 777         short_cal_interval = (ah->opmode == NL80211_IFTYPE_AP) ?
 778                 ATH_AP_SHORT_CALINTERVAL : ATH_STA_SHORT_CALINTERVAL;
 779
 780         /* Only calibrate if awake */
 781         if (ah->power_mode != ATH9K_PM_AWAKE)
 782                 goto set_timer;
 783
 784         /* Long calibration runs independently of short calibration. */
 785         if ((timestamp - common->ani.longcal_timer) >= ATH_LONG_CALINTERVAL) {
 786                 longcal = true;
 787                 ath_dbg(common, ANI, "longcal @%lu\n", jiffies);
 788                 common->ani.longcal_timer = timestamp;
 789         }
 790
 791         /* Short calibration applies only while caldone is false */
 792         if (!common->ani.caldone) {
 793                 if ((timestamp - common->ani.shortcal_timer) >=
 794                     short_cal_interval) {
 795                         shortcal = true;
 796                         ath_dbg(common, ANI, "shortcal @%lu\n", jiffies);
 797                         common->ani.shortcal_timer = timestamp;
 798                         common->ani.resetcal_timer = timestamp;
 799                 }
 800         } else {
 801                 if ((timestamp - common->ani.resetcal_timer) >=
 802                     ATH_RESTART_CALINTERVAL) {
 803                         common->ani.caldone = ath9k_hw_reset_calvalid(ah);
 804                         if (common->ani.caldone)
 805                                 common->ani.resetcal_timer = timestamp;
 806                 }
 807         }
 808
 809         /* Verify whether we must check ANI */
 810         if (ah->config.enable_ani &&
 811             (timestamp - common->ani.checkani_timer) >= ATH_ANI_POLLINTERVAL) {
 812                 aniflag = true;
 813                 common->ani.checkani_timer = timestamp;
 814         }
 815
 816         /* Skip all processing if there's nothing to do. */
 817         if (longcal || shortcal || aniflag) {
 818
 819                 ath9k_htc_ps_wakeup(priv);
 820
 821                 /* Call ANI routine if necessary */
 822                 if (aniflag)
 823                         ath9k_hw_ani_monitor(ah, ah->curchan);
 824
 825                 /* Perform calibration if necessary */
 826                 if (longcal || shortcal)
 827                         common->ani.caldone =
 828                                 ath9k_hw_calibrate(ah, ah->curchan,
 829                                                    ah->rxchainmask, longcal);
 830
 831                 ath9k_htc_ps_restore(priv);
 832         }
 833
 834 set_timer:
 835         /*
 836         * Set timer interval based on previous results.
 837         * The interval must be the shortest necessary to satisfy ANI,
 838         * short calibration and long calibration.
 839         */
 840         cal_interval = ATH_LONG_CALINTERVAL;
 841         if (ah->config.enable_ani)
 842                 cal_interval = min(cal_interval, (u32)ATH_ANI_POLLINTERVAL);
 843         if (!common->ani.caldone)
 844                 cal_interval = min(cal_interval, (u32)short_cal_interval);
 845
 846         ieee80211_queue_delayed_work(common->hw, &priv->ani_work,
 847                                      msecs_to_jiffies(cal_interval));
 848 }
 849
 850 /**********************/
 851 /* mac80211 Callbacks */
 852 /**********************/
 853
 854 static void ath9k_htc_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
 855 {
 856         struct ieee80211_hdr *hdr;
 857         struct ath9k_htc_priv *priv = hw->priv;
 858         struct ath_common *common = ath9k_hw_common(priv->ah);
 859         int padpos, padsize, ret, slot;
 860
 861         hdr = (struct ieee80211_hdr *) skb->data;
 862
 863         /* Add the padding after the header if this is not already done */
 864         padpos = ath9k_cmn_padpos(hdr->frame_control);
 865         padsize = padpos & 3;
 866         if (padsize && skb->len > padpos) {
 867                 if (skb_headroom(skb) < padsize) {
 868                         ath_dbg(common, XMIT, "No room for padding\n");
 869                         goto fail_tx;
 870                 }
 871                 skb_push(skb, padsize);
 872                 memmove(skb->data, skb->data + padsize, padpos);
 873         }
 874
 875         slot = ath9k_htc_tx_get_slot(priv);
 876         if (slot < 0) {
 877                 ath_dbg(common, XMIT, "No free TX slot\n");
 878                 goto fail_tx;
 879         }
 880
 881         ret = ath9k_htc_tx_start(priv, skb, slot, false);
 882         if (ret != 0) {
 883                 ath_dbg(common, XMIT, "Tx failed\n");
 884                 goto clear_slot;
 885         }
 886
 887         ath9k_htc_check_stop_queues(priv);
 888
 889         return;
 890
 891 clear_slot:
 892         ath9k_htc_tx_clear_slot(priv, slot);
 893 fail_tx:
 894         dev_kfree_skb_any(skb);
 895 }
 896
 897 static int ath9k_htc_start(struct ieee80211_hw *hw)
 898 {
 899         struct ath9k_htc_priv *priv = hw->priv;
 900         struct ath_hw *ah = priv->ah;
 901         struct ath_common *common = ath9k_hw_common(ah);
 902         struct ieee80211_channel *curchan = hw->conf.channel;
 903         struct ath9k_channel *init_channel;
 904         int ret = 0;
 905         enum htc_phymode mode;
 906         __be16 htc_mode;
 907         u8 cmd_rsp;
 908
 909         mutex_lock(&priv->mutex);
 910
 911         ath_dbg(common, CONFIG,
 912                 "Starting driver with initial channel: %d MHz\n",
 913                 curchan->center_freq);
 914
 915         /* Ensure that HW is awake before flushing RX */
 916         ath9k_htc_setpower(priv, ATH9K_PM_AWAKE);
 917         WMI_CMD(WMI_FLUSH_RECV_CMDID);
 918
 919         /* setup initial channel */
 920         init_channel = ath9k_cmn_get_curchannel(hw, ah);
 921
 922         ath9k_hw_htc_resetinit(ah);
 923         ret = ath9k_hw_reset(ah, init_channel, ah->caldata, false);
 924         if (ret) {
 925                 ath_err(common,
 926                         "Unable to reset hardware; reset status %d (freq %u MHz)\n",
 927                         ret, curchan->center_freq);
 928                 mutex_unlock(&priv->mutex);
 929                 return ret;
 930         }
 931
 932         ath9k_cmn_update_txpow(ah, priv->curtxpow, priv->txpowlimit,
 933                                &priv->curtxpow);
 934
 935         mode = ath9k_htc_get_curmode(priv, init_channel);
 936         htc_mode = cpu_to_be16(mode);
 937         WMI_CMD_BUF(WMI_SET_MODE_CMDID, &htc_mode);
 938         WMI_CMD(WMI_ATH_INIT_CMDID);
 939         WMI_CMD(WMI_START_RECV_CMDID);
 940
 941         ath9k_host_rx_init(priv);
 942
 943         ret = ath9k_htc_update_cap_target(priv, 0);
 944         if (ret)
 945                 ath_dbg(common, CONFIG,
 946                         "Failed to update capability in target\n");
 947
 948         priv->op_flags &= ~OP_INVALID;
 949         htc_start(priv->htc);
 950
 951         spin_lock_bh(&priv->tx.tx_lock);
 952         priv->tx.flags &= ~ATH9K_HTC_OP_TX_QUEUES_STOP;
 953         spin_unlock_bh(&priv->tx.tx_lock);
 954
 955         ieee80211_wake_queues(hw);
 956
 957         mod_timer(&priv->tx.cleanup_timer,
 958                   jiffies + msecs_to_jiffies(ATH9K_HTC_TX_CLEANUP_INTERVAL));
 959
 960         if (ah->btcoex_hw.scheme == ATH_BTCOEX_CFG_3WIRE) {
 961                 ath9k_hw_btcoex_set_weight(ah, AR_BT_COEX_WGHT,
 962                                            AR_STOMP_LOW_WLAN_WGHT);
 963                 ath9k_hw_btcoex_enable(ah);
 964                 ath_htc_resume_btcoex_work(priv);
 965         }
 966         mutex_unlock(&priv->mutex);
 967
 968         return ret;
 969 }
 970
 971 static void ath9k_htc_stop(struct ieee80211_hw *hw)
 972 {
 973         struct ath9k_htc_priv *priv = hw->priv;
 974         struct ath_hw *ah = priv->ah;
 975         struct ath_common *common = ath9k_hw_common(ah);
 976         int ret __attribute__ ((unused));
 977         u8 cmd_rsp;
 978
 979         mutex_lock(&priv->mutex);
 980
 981         if (priv->op_flags & OP_INVALID) {
 982                 ath_dbg(common, ANY, "Device not present\n");
 983                 mutex_unlock(&priv->mutex);
 984                 return;
 985         }
 986
 987         ath9k_htc_ps_wakeup(priv);
 988
 989         WMI_CMD(WMI_DISABLE_INTR_CMDID);
 990         WMI_CMD(WMI_DRAIN_TXQ_ALL_CMDID);
 991         WMI_CMD(WMI_STOP_RECV_CMDID);
 992
 993         tasklet_kill(&priv->rx_tasklet);
 994
 995         del_timer_sync(&priv->tx.cleanup_timer);
 996         ath9k_htc_tx_drain(priv);
 997         ath9k_wmi_event_drain(priv);
 998
 999         mutex_unlock(&priv->mutex);
1000
1001         /* Cancel all the running timers/work .. */
1002         cancel_work_sync(&priv->fatal_work);
1003         cancel_work_sync(&priv->ps_work);
1004
1005 #ifdef CONFIG_MAC80211_LEDS
1006         cancel_work_sync(&priv->led_work);
1007 #endif
1008         ath9k_htc_stop_ani(priv);
1009
1010         mutex_lock(&priv->mutex);
1011
1012         if (ah->btcoex_hw.enabled) {
1013                 ath9k_hw_btcoex_disable(ah);
1014                 if (ah->btcoex_hw.scheme == ATH_BTCOEX_CFG_3WIRE)
1015                         ath_htc_cancel_btcoex_work(priv);
1016         }
1017
1018         /* Remove a monitor interface if it's present. */
1019         if (priv->ah->is_monitoring)
1020                 ath9k_htc_remove_monitor_interface(priv);
1021
1022         ath9k_hw_phy_disable(ah);
1023         ath9k_hw_disable(ah);
1024         ath9k_htc_ps_restore(priv);
1025         ath9k_htc_setpower(priv, ATH9K_PM_FULL_SLEEP);
1026
1027         priv->op_flags |= OP_INVALID;
1028
1029         ath_dbg(common, CONFIG, "Driver halt\n");
1030         mutex_unlock(&priv->mutex);
1031 }
1032
1033 static int ath9k_htc_add_interface(struct ieee80211_hw *hw,
1034                                    struct ieee80211_vif *vif)
1035 {
1036         struct ath9k_htc_priv *priv = hw->priv;
1037         struct ath9k_htc_vif *avp = (void *)vif->drv_priv;
1038         struct ath_common *common = ath9k_hw_common(priv->ah);
1039         struct ath9k_htc_target_vif hvif;
1040         int ret = 0;
1041         u8 cmd_rsp;
1042
1043         mutex_lock(&priv->mutex);
1044
1045         if (priv->nvifs >= ATH9K_HTC_MAX_VIF) {
1046                 mutex_unlock(&priv->mutex);
1047                 return -ENOBUFS;
1048         }
1049
1050         if (priv->num_ibss_vif ||
1051             (priv->nvifs && vif->type == NL80211_IFTYPE_ADHOC)) {
1052                 ath_err(common, "IBSS coexistence with other modes is not allowed\n");
1053                 mutex_unlock(&priv->mutex);
1054                 return -ENOBUFS;
1055         }
1056
1057         if (((vif->type == NL80211_IFTYPE_AP) ||
1058              (vif->type == NL80211_IFTYPE_ADHOC)) &&
1059             ((priv->num_ap_vif + priv->num_ibss_vif) >= ATH9K_HTC_MAX_BCN_VIF)) {
1060                 ath_err(common, "Max. number of beaconing interfaces reached\n");
1061                 mutex_unlock(&priv->mutex);
1062                 return -ENOBUFS;
1063         }
1064
1065         ath9k_htc_ps_wakeup(priv);
1066         memset(&hvif, 0, sizeof(struct ath9k_htc_target_vif));
1067         memcpy(&hvif.myaddr, vif->addr, ETH_ALEN);
1068
1069         switch (vif->type) {
1070         case NL80211_IFTYPE_STATION:
1071                 hvif.opmode = HTC_M_STA;
1072                 break;
1073         case NL80211_IFTYPE_ADHOC:
1074                 hvif.opmode = HTC_M_IBSS;
1075                 break;
1076         case NL80211_IFTYPE_AP:
1077                 hvif.opmode = HTC_M_HOSTAP;
1078                 break;
1079         default:
1080                 ath_err(common,
1081                         "Interface type %d not yet supported\n", vif->type);
1082                 ret = -EOPNOTSUPP;
1083                 goto out;
1084         }
1085
1086         /* Index starts from zero on the target */
1087         avp->index = hvif.index = ffz(priv->vif_slot);
1088         hvif.rtsthreshold = cpu_to_be16(2304);
1089         WMI_CMD_BUF(WMI_VAP_CREATE_CMDID, &hvif);
1090         if (ret)
1091                 goto out;
1092
1093         /*
1094          * We need a node in target to tx mgmt frames
1095          * before association.
1096          */
1097         ret = ath9k_htc_add_station(priv, vif, NULL);
1098         if (ret) {
1099                 WMI_CMD_BUF(WMI_VAP_REMOVE_CMDID, &hvif);
1100                 goto out;
1101         }
1102
1103         ath9k_htc_set_bssid_mask(priv, vif);
1104
1105         priv->vif_slot |= (1 << avp->index);
1106         priv->nvifs++;
1107
1108         INC_VIF(priv, vif->type);
1109
1110         if ((vif->type == NL80211_IFTYPE_AP) ||
1111             (vif->type == NL80211_IFTYPE_ADHOC))
1112                 ath9k_htc_assign_bslot(priv, vif);
1113
1114         ath9k_htc_set_opmode(priv);
1115
1116         if ((priv->ah->opmode == NL80211_IFTYPE_AP) &&
1117             !(priv->op_flags & OP_ANI_RUNNING)) {
1118                 ath9k_hw_set_tsfadjust(priv->ah, 1);
1119                 ath9k_htc_start_ani(priv);
1120         }
1121
1122         ath_dbg(common, CONFIG, "Attach a VIF of type: %d at idx: %d\n",
1123                 vif->type, avp->index);
1124
1125 out:
1126         ath9k_htc_ps_restore(priv);
1127         mutex_unlock(&priv->mutex);
1128
1129         return ret;
1130 }
1131
1132 static void ath9k_htc_remove_interface(struct ieee80211_hw *hw,
1133                                        struct ieee80211_vif *vif)
1134 {
1135         struct ath9k_htc_priv *priv = hw->priv;
1136         struct ath_common *common = ath9k_hw_common(priv->ah);
1137         struct ath9k_htc_vif *avp = (void *)vif->drv_priv;
1138         struct ath9k_htc_target_vif hvif;
1139         int ret = 0;
1140         u8 cmd_rsp;
1141
1142         mutex_lock(&priv->mutex);
1143         ath9k_htc_ps_wakeup(priv);
1144
1145         memset(&hvif, 0, sizeof(struct ath9k_htc_target_vif));
1146         memcpy(&hvif.myaddr, vif->addr, ETH_ALEN);
1147         hvif.index = avp->index;
1148         WMI_CMD_BUF(WMI_VAP_REMOVE_CMDID, &hvif);
1149         if (ret) {
1150                 ath_err(common, "Unable to remove interface at idx: %d\n",
1151                         avp->index);
1152         }
1153         priv->nvifs--;
1154         priv->vif_slot &= ~(1 << avp->index);
1155
1156         ath9k_htc_remove_station(priv, vif, NULL);
1157
1158         DEC_VIF(priv, vif->type);
1159
1160         if ((vif->type == NL80211_IFTYPE_AP) ||
1161             (vif->type == NL80211_IFTYPE_ADHOC))
1162                 ath9k_htc_remove_bslot(priv, vif);
1163
1164         ath9k_htc_set_opmode(priv);
1165
1166         ath9k_htc_set_bssid_mask(priv, vif);
1167
1168         /*
1169          * Stop ANI only if there are no associated station interfaces.
1170          */
1171         if ((vif->type == NL80211_IFTYPE_AP) && (priv->num_ap_vif == 0)) {
1172                 priv->rearm_ani = false;
1173                 ieee80211_iterate_active_interfaces_atomic(priv->hw,
1174                                                    ath9k_htc_vif_iter, priv);
1175                 if (!priv->rearm_ani)
1176                         ath9k_htc_stop_ani(priv);
1177         }
1178
1179         ath_dbg(common, CONFIG, "Detach Interface at idx: %d\n", avp->index);
1180
1181         ath9k_htc_ps_restore(priv);
1182         mutex_unlock(&priv->mutex);
1183 }
1184
1185 static int ath9k_htc_config(struct ieee80211_hw *hw, u32 changed)
1186 {
1187         struct ath9k_htc_priv *priv = hw->priv;
1188         struct ath_common *common = ath9k_hw_common(priv->ah);
1189         struct ieee80211_conf *conf = &hw->conf;
1190
1191         mutex_lock(&priv->mutex);
1192
1193         if (changed & IEEE80211_CONF_CHANGE_IDLE) {
1194                 bool enable_radio = false;
1195                 bool idle = !!(conf->flags & IEEE80211_CONF_IDLE);
1196
1197                 mutex_lock(&priv->htc_pm_lock);
1198                 if (!idle && priv->ps_idle)
1199                         enable_radio = true;
1200                 priv->ps_idle = idle;
1201                 mutex_unlock(&priv->htc_pm_lock);
1202
1203                 if (enable_radio) {
1204                         ath_dbg(common, CONFIG, "not-idle: enabling radio\n");
1205                         ath9k_htc_setpower(priv, ATH9K_PM_AWAKE);
1206                         ath9k_htc_radio_enable(hw);
1207                 }
1208         }
1209
1210         /*
1211          * Monitor interface should be added before
1212          * IEEE80211_CONF_CHANGE_CHANNEL is handled.
1213          */
1214         if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
1215                 if ((conf->flags & IEEE80211_CONF_MONITOR) &&
1216                     !priv->ah->is_monitoring)
1217                         ath9k_htc_add_monitor_interface(priv);
1218                 else if (priv->ah->is_monitoring)
1219                         ath9k_htc_remove_monitor_interface(priv);
1220         }
1221
1222         if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
1223                 struct ieee80211_channel *curchan = hw->conf.channel;
1224                 int pos = curchan->hw_value;
1225
1226                 ath_dbg(common, CONFIG, "Set channel: %d MHz\n",
1227                         curchan->center_freq);
1228
1229                 ath9k_cmn_update_ichannel(&priv->ah->channels[pos],
1230                                           hw->conf.channel,
1231                                           hw->conf.channel_type);
1232
1233                 if (ath9k_htc_set_channel(priv, hw, &priv->ah->channels[pos]) < 0) {
1234                         ath_err(common, "Unable to set channel\n");
1235                         mutex_unlock(&priv->mutex);
1236                         return -EINVAL;
1237                 }
1238
1239         }
1240
1241         if (changed & IEEE80211_CONF_CHANGE_PS) {
1242                 if (conf->flags & IEEE80211_CONF_PS) {
1243                         ath9k_htc_setpower(priv, ATH9K_PM_NETWORK_SLEEP);
1244                         priv->ps_enabled = true;
1245                 } else {
1246                         priv->ps_enabled = false;
1247                         cancel_work_sync(&priv->ps_work);
1248                         ath9k_htc_setpower(priv, ATH9K_PM_AWAKE);
1249                 }
1250         }
1251
1252         if (changed & IEEE80211_CONF_CHANGE_POWER) {
1253                 priv->txpowlimit = 2 * conf->power_level;
1254                 ath9k_cmn_update_txpow(priv->ah, priv->curtxpow,
1255                                        priv->txpowlimit, &priv->curtxpow);
1256         }
1257
1258         if (changed & IEEE80211_CONF_CHANGE_IDLE) {
1259                 mutex_lock(&priv->htc_pm_lock);
1260                 if (!priv->ps_idle) {
1261                         mutex_unlock(&priv->htc_pm_lock);
1262                         goto out;
1263                 }
1264                 mutex_unlock(&priv->htc_pm_lock);
1265
1266                 ath_dbg(common, CONFIG, "idle: disabling radio\n");
1267                 ath9k_htc_radio_disable(hw);
1268         }
1269
1270 out:
1271         mutex_unlock(&priv->mutex);
1272         return 0;
1273 }
1274
1275 #define SUPPORTED_FILTERS                       \
1276         (FIF_PROMISC_IN_BSS |                   \
1277         FIF_ALLMULTI |                          \
1278         FIF_CONTROL |                           \
1279         FIF_PSPOLL |                            \
1280         FIF_OTHER_BSS |                         \
1281         FIF_BCN_PRBRESP_PROMISC |               \
1282         FIF_PROBE_REQ |                         \
1283         FIF_FCSFAIL)
1284
1285 static void ath9k_htc_configure_filter(struct ieee80211_hw *hw,
1286                                        unsigned int changed_flags,
1287                                        unsigned int *total_flags,
1288                                        u64 multicast)
1289 {
1290         struct ath9k_htc_priv *priv = hw->priv;
1291         u32 rfilt;
1292
1293         mutex_lock(&priv->mutex);
1294         changed_flags &= SUPPORTED_FILTERS;
1295         *total_flags &= SUPPORTED_FILTERS;
1296
1297         if (priv->op_flags & OP_INVALID) {
1298                 ath_dbg(ath9k_hw_common(priv->ah), ANY,
1299                         "Unable to configure filter on invalid state\n");
1300                 mutex_unlock(&priv->mutex);
1301                 return;
1302         }
1303         ath9k_htc_ps_wakeup(priv);
1304
1305         priv->rxfilter = *total_flags;
1306         rfilt = ath9k_htc_calcrxfilter(priv);
1307         ath9k_hw_setrxfilter(priv->ah, rfilt);
1308
1309         ath_dbg(ath9k_hw_common(priv->ah), CONFIG, "Set HW RX filter: 0x%x\n",
1310                 rfilt);
1311
1312         ath9k_htc_ps_restore(priv);
1313         mutex_unlock(&priv->mutex);
1314 }
1315
1316 static int ath9k_htc_sta_add(struct ieee80211_hw *hw,
1317                              struct ieee80211_vif *vif,
1318                              struct ieee80211_sta *sta)
1319 {
1320         struct ath9k_htc_priv *priv = hw->priv;
1321         int ret;
1322
1323         mutex_lock(&priv->mutex);
1324         ath9k_htc_ps_wakeup(priv);
1325         ret = ath9k_htc_add_station(priv, vif, sta);
1326         if (!ret)
1327                 ath9k_htc_init_rate(priv, sta);
1328         ath9k_htc_ps_restore(priv);
1329         mutex_unlock(&priv->mutex);
1330
1331         return ret;
1332 }
1333
1334 static int ath9k_htc_sta_remove(struct ieee80211_hw *hw,
1335                                 struct ieee80211_vif *vif,
1336                                 struct ieee80211_sta *sta)
1337 {
1338         struct ath9k_htc_priv *priv = hw->priv;
1339         struct ath9k_htc_sta *ista;
1340         int ret;
1341
1342         mutex_lock(&priv->mutex);
1343         ath9k_htc_ps_wakeup(priv);
1344         ista = (struct ath9k_htc_sta *) sta->drv_priv;
1345         htc_sta_drain(priv->htc, ista->index);
1346         ret = ath9k_htc_remove_station(priv, vif, sta);
1347         ath9k_htc_ps_restore(priv);
1348         mutex_unlock(&priv->mutex);
1349
1350         return ret;
1351 }
1352
1353 static int ath9k_htc_conf_tx(struct ieee80211_hw *hw,
1354                              struct ieee80211_vif *vif, u16 queue,
1355                              const struct ieee80211_tx_queue_params *params)
1356 {
1357         struct ath9k_htc_priv *priv = hw->priv;
1358         struct ath_common *common = ath9k_hw_common(priv->ah);
1359         struct ath9k_tx_queue_info qi;
1360         int ret = 0, qnum;
1361
1362         if (queue >= WME_NUM_AC)
1363                 return 0;
1364
1365         mutex_lock(&priv->mutex);
1366         ath9k_htc_ps_wakeup(priv);
1367
1368         memset(&qi, 0, sizeof(struct ath9k_tx_queue_info));
1369
1370         qi.tqi_aifs = params->aifs;
1371         qi.tqi_cwmin = params->cw_min;
1372         qi.tqi_cwmax = params->cw_max;
1373         qi.tqi_burstTime = params->txop;
1374
1375         qnum = get_hw_qnum(queue, priv->hwq_map);
1376
1377         ath_dbg(common, CONFIG,
1378                 "Configure tx [queue/hwq] [%d/%d],  aifs: %d, cw_min: %d, cw_max: %d, txop: %d\n",
1379                 queue, qnum, params->aifs, params->cw_min,
1380                 params->cw_max, params->txop);
1381
1382         ret = ath_htc_txq_update(priv, qnum, &qi);
1383         if (ret) {
1384                 ath_err(common, "TXQ Update failed\n");
1385                 goto out;
1386         }
1387
1388         if ((priv->ah->opmode == NL80211_IFTYPE_ADHOC) &&
1389             (qnum == priv->hwq_map[WME_AC_BE]))
1390                     ath9k_htc_beaconq_config(priv);
1391 out:
1392         ath9k_htc_ps_restore(priv);
1393         mutex_unlock(&priv->mutex);
1394
1395         return ret;
1396 }
1397
1398 static int ath9k_htc_set_key(struct ieee80211_hw *hw,
1399                              enum set_key_cmd cmd,
1400                              struct ieee80211_vif *vif,
1401                              struct ieee80211_sta *sta,
1402                              struct ieee80211_key_conf *key)
1403 {
1404         struct ath9k_htc_priv *priv = hw->priv;
1405         struct ath_common *common = ath9k_hw_common(priv->ah);
1406         int ret = 0;
1407
1408         if (htc_modparam_nohwcrypt)
1409                 return -ENOSPC;
1410
1411         mutex_lock(&priv->mutex);
1412         ath_dbg(common, CONFIG, "Set HW Key\n");
1413         ath9k_htc_ps_wakeup(priv);
1414
1415         switch (cmd) {
1416         case SET_KEY:
1417                 ret = ath_key_config(common, vif, sta, key);
1418                 if (ret >= 0) {
1419                         key->hw_key_idx = ret;
1420                         /* push IV and Michael MIC generation to stack */
1421                         key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
1422                         if (key->cipher == WLAN_CIPHER_SUITE_TKIP)
1423                                 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
1424                         if (priv->ah->sw_mgmt_crypto &&
1425                             key->cipher == WLAN_CIPHER_SUITE_CCMP)
1426                                 key->flags |= IEEE80211_KEY_FLAG_SW_MGMT;
1427                         ret = 0;
1428                 }
1429                 break;
1430         case DISABLE_KEY:
1431                 ath_key_delete(common, key);
1432                 break;
1433         default:
1434                 ret = -EINVAL;
1435         }
1436
1437         ath9k_htc_ps_restore(priv);
1438         mutex_unlock(&priv->mutex);
1439
1440         return ret;
1441 }
1442
1443 static void ath9k_htc_set_bssid(struct ath9k_htc_priv *priv)
1444 {
1445         struct ath_common *common = ath9k_hw_common(priv->ah);
1446
1447         ath9k_hw_write_associd(priv->ah);
1448         ath_dbg(common, CONFIG, "BSSID: %pM aid: 0x%x\n",
1449                 common->curbssid, common->curaid);
1450 }
1451
1452 static void ath9k_htc_bss_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
1453 {
1454         struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *)data;
1455         struct ath_common *common = ath9k_hw_common(priv->ah);
1456         struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
1457
1458         if ((vif->type == NL80211_IFTYPE_STATION) && bss_conf->assoc) {
1459                 common->curaid = bss_conf->aid;
1460                 memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN);
1461         }
1462 }
1463
1464 static void ath9k_htc_choose_set_bssid(struct ath9k_htc_priv *priv)
1465 {
1466         if (priv->num_sta_assoc_vif == 1) {
1467                 ieee80211_iterate_active_interfaces_atomic(priv->hw,
1468                                                            ath9k_htc_bss_iter, priv);
1469                 ath9k_htc_set_bssid(priv);
1470         }
1471 }
1472
1473 static void ath9k_htc_bss_info_changed(struct ieee80211_hw *hw,
1474                                        struct ieee80211_vif *vif,
1475                                        struct ieee80211_bss_conf *bss_conf,
1476                                        u32 changed)
1477 {
1478         struct ath9k_htc_priv *priv = hw->priv;
1479         struct ath_hw *ah = priv->ah;
1480         struct ath_common *common = ath9k_hw_common(ah);
1481
1482         mutex_lock(&priv->mutex);
1483         ath9k_htc_ps_wakeup(priv);
1484
1485         if (changed & BSS_CHANGED_ASSOC) {
1486                 ath_dbg(common, CONFIG, "BSS Changed ASSOC %d\n",
1487                         bss_conf->assoc);
1488
1489                 bss_conf->assoc ?
1490                         priv->num_sta_assoc_vif++ : priv->num_sta_assoc_vif--;
1491
1492                 if (priv->ah->opmode == NL80211_IFTYPE_STATION) {
1493                         if (bss_conf->assoc && (priv->num_sta_assoc_vif == 1))
1494                                 ath9k_htc_start_ani(priv);
1495                         else if (priv->num_sta_assoc_vif == 0)
1496                                 ath9k_htc_stop_ani(priv);
1497                 }
1498         }
1499
1500         if (changed & BSS_CHANGED_BSSID) {
1501                 if (priv->ah->opmode == NL80211_IFTYPE_ADHOC) {
1502                         common->curaid = bss_conf->aid;
1503                         memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN);
1504                         ath9k_htc_set_bssid(priv);
1505                 } else if (priv->ah->opmode == NL80211_IFTYPE_STATION) {
1506                         ath9k_htc_choose_set_bssid(priv);
1507                 }
1508         }
1509
1510         if ((changed & BSS_CHANGED_BEACON_ENABLED) && bss_conf->enable_beacon) {
1511                 ath_dbg(common, CONFIG, "Beacon enabled for BSS: %pM\n",
1512                         bss_conf->bssid);
1513                 ath9k_htc_set_tsfadjust(priv, vif);
1514                 priv->op_flags |= OP_ENABLE_BEACON;
1515                 ath9k_htc_beacon_config(priv, vif);
1516         }
1517
1518         if ((changed & BSS_CHANGED_BEACON_ENABLED) && !bss_conf->enable_beacon) {
1519                 /*
1520                  * Disable SWBA interrupt only if there are no
1521                  * AP/IBSS interfaces.
1522                  */
1523                 if ((priv->num_ap_vif <= 1) || priv->num_ibss_vif) {
1524                         ath_dbg(common, CONFIG,
1525                                 "Beacon disabled for BSS: %pM\n",
1526                                 bss_conf->bssid);
1527                         priv->op_flags &= ~OP_ENABLE_BEACON;
1528                         ath9k_htc_beacon_config(priv, vif);
1529                 }
1530         }
1531
1532         if (changed & BSS_CHANGED_BEACON_INT) {
1533                 /*
1534                  * Reset the HW TSF for the first AP interface.
1535                  */
1536                 if ((priv->ah->opmode == NL80211_IFTYPE_AP) &&
1537                     (priv->nvifs == 1) &&
1538                     (priv->num_ap_vif == 1) &&
1539                     (vif->type == NL80211_IFTYPE_AP)) {
1540                         priv->op_flags |= OP_TSF_RESET;
1541                 }
1542                 ath_dbg(common, CONFIG,
1543                         "Beacon interval changed for BSS: %pM\n",
1544                         bss_conf->bssid);
1545                 ath9k_htc_beacon_config(priv, vif);
1546         }
1547
1548         if (changed & BSS_CHANGED_ERP_SLOT) {
1549                 if (bss_conf->use_short_slot)
1550                         ah->slottime = 9;
1551                 else
1552                         ah->slottime = 20;
1553
1554                 ath9k_hw_init_global_settings(ah);
1555         }
1556
1557         if (changed & BSS_CHANGED_HT)
1558                 ath9k_htc_update_rate(priv, vif, bss_conf);
1559
1560         ath9k_htc_ps_restore(priv);
1561         mutex_unlock(&priv->mutex);
1562 }
1563
1564 static u64 ath9k_htc_get_tsf(struct ieee80211_hw *hw,
1565                              struct ieee80211_vif *vif)
1566 {
1567         struct ath9k_htc_priv *priv = hw->priv;
1568         u64 tsf;
1569
1570         mutex_lock(&priv->mutex);
1571         ath9k_htc_ps_wakeup(priv);
1572         tsf = ath9k_hw_gettsf64(priv->ah);
1573         ath9k_htc_ps_restore(priv);
1574         mutex_unlock(&priv->mutex);
1575
1576         return tsf;
1577 }
1578
1579 static void ath9k_htc_set_tsf(struct ieee80211_hw *hw,
1580                               struct ieee80211_vif *vif, u64 tsf)
1581 {
1582         struct ath9k_htc_priv *priv = hw->priv;
1583
1584         mutex_lock(&priv->mutex);
1585         ath9k_htc_ps_wakeup(priv);
1586         ath9k_hw_settsf64(priv->ah, tsf);
1587         ath9k_htc_ps_restore(priv);
1588         mutex_unlock(&priv->mutex);
1589 }
1590
1591 static void ath9k_htc_reset_tsf(struct ieee80211_hw *hw,
1592                                 struct ieee80211_vif *vif)
1593 {
1594         struct ath9k_htc_priv *priv = hw->priv;
1595
1596         mutex_lock(&priv->mutex);
1597         ath9k_htc_ps_wakeup(priv);
1598         ath9k_hw_reset_tsf(priv->ah);
1599         ath9k_htc_ps_restore(priv);
1600         mutex_unlock(&priv->mutex);
1601 }
1602
1603 static int ath9k_htc_ampdu_action(struct ieee80211_hw *hw,
1604                                   struct ieee80211_vif *vif,
1605                                   enum ieee80211_ampdu_mlme_action action,
1606                                   struct ieee80211_sta *sta,
1607                                   u16 tid, u16 *ssn, u8 buf_size)
1608 {
1609         struct ath9k_htc_priv *priv = hw->priv;
1610         struct ath9k_htc_sta *ista;
1611         int ret = 0;
1612
1613         mutex_lock(&priv->mutex);
1614         ath9k_htc_ps_wakeup(priv);
1615
1616         switch (action) {
1617         case IEEE80211_AMPDU_RX_START:
1618                 break;
1619         case IEEE80211_AMPDU_RX_STOP:
1620                 break;
1621         case IEEE80211_AMPDU_TX_START:
1622                 ret = ath9k_htc_tx_aggr_oper(priv, vif, sta, action, tid);
1623                 if (!ret)
1624                         ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1625                 break;
1626         case IEEE80211_AMPDU_TX_STOP:
1627                 ath9k_htc_tx_aggr_oper(priv, vif, sta, action, tid);
1628                 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1629                 break;
1630         case IEEE80211_AMPDU_TX_OPERATIONAL:
1631                 ista = (struct ath9k_htc_sta *) sta->drv_priv;
1632                 spin_lock_bh(&priv->tx.tx_lock);
1633                 ista->tid_state[tid] = AGGR_OPERATIONAL;
1634                 spin_unlock_bh(&priv->tx.tx_lock);
1635                 break;
1636         default:
1637                 ath_err(ath9k_hw_common(priv->ah), "Unknown AMPDU action\n");
1638         }
1639
1640         ath9k_htc_ps_restore(priv);
1641         mutex_unlock(&priv->mutex);
1642
1643         return ret;
1644 }
1645
1646 static void ath9k_htc_sw_scan_start(struct ieee80211_hw *hw)
1647 {
1648         struct ath9k_htc_priv *priv = hw->priv;
1649
1650         mutex_lock(&priv->mutex);
1651         spin_lock_bh(&priv->beacon_lock);
1652         priv->op_flags |= OP_SCANNING;
1653         spin_unlock_bh(&priv->beacon_lock);
1654         cancel_work_sync(&priv->ps_work);
1655         ath9k_htc_stop_ani(priv);
1656         mutex_unlock(&priv->mutex);
1657 }
1658
1659 static void ath9k_htc_sw_scan_complete(struct ieee80211_hw *hw)
1660 {
1661         struct ath9k_htc_priv *priv = hw->priv;
1662
1663         mutex_lock(&priv->mutex);
1664         spin_lock_bh(&priv->beacon_lock);
1665         priv->op_flags &= ~OP_SCANNING;
1666         spin_unlock_bh(&priv->beacon_lock);
1667         ath9k_htc_ps_wakeup(priv);
1668         ath9k_htc_vif_reconfig(priv);
1669         ath9k_htc_ps_restore(priv);
1670         mutex_unlock(&priv->mutex);
1671 }
1672
1673 static int ath9k_htc_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
1674 {
1675         return 0;
1676 }
1677
1678 static void ath9k_htc_set_coverage_class(struct ieee80211_hw *hw,
1679                                          u8 coverage_class)
1680 {
1681         struct ath9k_htc_priv *priv = hw->priv;
1682
1683         mutex_lock(&priv->mutex);
1684         ath9k_htc_ps_wakeup(priv);
1685         priv->ah->coverage_class = coverage_class;
1686         ath9k_hw_init_global_settings(priv->ah);
1687         ath9k_htc_ps_restore(priv);
1688         mutex_unlock(&priv->mutex);
1689 }
1690
1691 /*
1692  * Currently, this is used only for selecting the minimum rate
1693  * for management frames, rate selection for data frames remain
1694  * unaffected.
1695  */
1696 static int ath9k_htc_set_bitrate_mask(struct ieee80211_hw *hw,
1697                                       struct ieee80211_vif *vif,
1698                                       const struct cfg80211_bitrate_mask *mask)
1699 {
1700         struct ath9k_htc_priv *priv = hw->priv;
1701         struct ath_common *common = ath9k_hw_common(priv->ah);
1702         struct ath9k_htc_target_rate_mask tmask;
1703         struct ath9k_htc_vif *avp = (void *)vif->drv_priv;
1704         int ret = 0;
1705         u8 cmd_rsp;
1706
1707         memset(&tmask, 0, sizeof(struct ath9k_htc_target_rate_mask));
1708
1709         tmask.vif_index = avp->index;
1710         tmask.band = IEEE80211_BAND_2GHZ;
1711         tmask.mask = cpu_to_be32(mask->control[IEEE80211_BAND_2GHZ].legacy);
1712
1713         WMI_CMD_BUF(WMI_BITRATE_MASK_CMDID, &tmask);
1714         if (ret) {
1715                 ath_err(common,
1716                         "Unable to set 2G rate mask for "
1717                         "interface at idx: %d\n", avp->index);
1718                 goto out;
1719         }
1720
1721         tmask.band = IEEE80211_BAND_5GHZ;
1722         tmask.mask = cpu_to_be32(mask->control[IEEE80211_BAND_5GHZ].legacy);
1723
1724         WMI_CMD_BUF(WMI_BITRATE_MASK_CMDID, &tmask);
1725         if (ret) {
1726                 ath_err(common,
1727                         "Unable to set 5G rate mask for "
1728                         "interface at idx: %d\n", avp->index);
1729                 goto out;
1730         }
1731
1732         ath_dbg(common, CONFIG, "Set bitrate masks: 0x%x, 0x%x\n",
1733                 mask->control[IEEE80211_BAND_2GHZ].legacy,
1734                 mask->control[IEEE80211_BAND_5GHZ].legacy);
1735 out:
1736         return ret;
1737 }
1738
1739
1740 static int ath9k_htc_get_stats(struct ieee80211_hw *hw,
1741                                struct ieee80211_low_level_stats *stats)
1742 {
1743         struct ath9k_htc_priv *priv = hw->priv;
1744         struct ath_hw *ah = priv->ah;
1745         struct ath9k_mib_stats *mib_stats = &ah->ah_mibStats;
1746
1747         stats->dot11ACKFailureCount = mib_stats->ackrcv_bad;
1748         stats->dot11RTSFailureCount = mib_stats->rts_bad;
1749         stats->dot11FCSErrorCount = mib_stats->fcs_bad;
1750         stats->dot11RTSSuccessCount = mib_stats->rts_good;
1751
1752         return 0;
1753 }
1754
1755 struct ieee80211_ops ath9k_htc_ops = {
1756         .tx                 = ath9k_htc_tx,
1757         .start              = ath9k_htc_start,
1758         .stop               = ath9k_htc_stop,
1759         .add_interface      = ath9k_htc_add_interface,
1760         .remove_interface   = ath9k_htc_remove_interface,
1761         .config             = ath9k_htc_config,
1762         .configure_filter   = ath9k_htc_configure_filter,
1763         .sta_add            = ath9k_htc_sta_add,
1764         .sta_remove         = ath9k_htc_sta_remove,
1765         .conf_tx            = ath9k_htc_conf_tx,
1766         .bss_info_changed   = ath9k_htc_bss_info_changed,
1767         .set_key            = ath9k_htc_set_key,
1768         .get_tsf            = ath9k_htc_get_tsf,
1769         .set_tsf            = ath9k_htc_set_tsf,
1770         .reset_tsf          = ath9k_htc_reset_tsf,
1771         .ampdu_action       = ath9k_htc_ampdu_action,
1772         .sw_scan_start      = ath9k_htc_sw_scan_start,
1773         .sw_scan_complete   = ath9k_htc_sw_scan_complete,
1774         .set_rts_threshold  = ath9k_htc_set_rts_threshold,
1775         .rfkill_poll        = ath9k_htc_rfkill_poll_state,
1776         .set_coverage_class = ath9k_htc_set_coverage_class,
1777         .set_bitrate_mask   = ath9k_htc_set_bitrate_mask,
1778         .get_stats          = ath9k_htc_get_stats,
1779 };