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         ret = ath9k_hw_reset(ah, init_channel, ah->caldata, false);
 923         if (ret) {
 924                 ath_err(common,
 925                         "Unable to reset hardware; reset status %d (freq %u MHz)\n",
 926                         ret, curchan->center_freq);
 927                 mutex_unlock(&priv->mutex);
 928                 return ret;
 929         }
 930
 931         ath9k_cmn_update_txpow(ah, priv->curtxpow, priv->txpowlimit,
 932                                &priv->curtxpow);
 933
 934         mode = ath9k_htc_get_curmode(priv, init_channel);
 935         htc_mode = cpu_to_be16(mode);
 936         WMI_CMD_BUF(WMI_SET_MODE_CMDID, &htc_mode);
 937         WMI_CMD(WMI_ATH_INIT_CMDID);
 938         WMI_CMD(WMI_START_RECV_CMDID);
 939
 940         ath9k_host_rx_init(priv);
 941
 942         ret = ath9k_htc_update_cap_target(priv, 0);
 943         if (ret)
 944                 ath_dbg(common, CONFIG,
 945                         "Failed to update capability in target\n");
 946
 947         priv->op_flags &= ~OP_INVALID;
 948         htc_start(priv->htc);
 949
 950         spin_lock_bh(&priv->tx.tx_lock);
 951         priv->tx.flags &= ~ATH9K_HTC_OP_TX_QUEUES_STOP;
 952         spin_unlock_bh(&priv->tx.tx_lock);
 953
 954         ieee80211_wake_queues(hw);
 955
 956         mod_timer(&priv->tx.cleanup_timer,
 957                   jiffies + msecs_to_jiffies(ATH9K_HTC_TX_CLEANUP_INTERVAL));
 958
 959         ath9k_htc_start_btcoex(priv);
 960
 961         mutex_unlock(&priv->mutex);
 962
 963         return ret;
 964 }
 965
 966 static void ath9k_htc_stop(struct ieee80211_hw *hw)
 967 {
 968         struct ath9k_htc_priv *priv = hw->priv;
 969         struct ath_hw *ah = priv->ah;
 970         struct ath_common *common = ath9k_hw_common(ah);
 971         int ret __attribute__ ((unused));
 972         u8 cmd_rsp;
 973
 974         mutex_lock(&priv->mutex);
 975
 976         if (priv->op_flags & OP_INVALID) {
 977                 ath_dbg(common, ANY, "Device not present\n");
 978                 mutex_unlock(&priv->mutex);
 979                 return;
 980         }
 981
 982         ath9k_htc_ps_wakeup(priv);
 983
 984         WMI_CMD(WMI_DISABLE_INTR_CMDID);
 985         WMI_CMD(WMI_DRAIN_TXQ_ALL_CMDID);
 986         WMI_CMD(WMI_STOP_RECV_CMDID);
 987
 988         tasklet_kill(&priv->rx_tasklet);
 989
 990         del_timer_sync(&priv->tx.cleanup_timer);
 991         ath9k_htc_tx_drain(priv);
 992         ath9k_wmi_event_drain(priv);
 993
 994         mutex_unlock(&priv->mutex);
 995
 996         /* Cancel all the running timers/work .. */
 997         cancel_work_sync(&priv->fatal_work);
 998         cancel_work_sync(&priv->ps_work);
 999
1000 #ifdef CONFIG_MAC80211_LEDS
1001         cancel_work_sync(&priv->led_work);
1002 #endif
1003         ath9k_htc_stop_ani(priv);
1004
1005         mutex_lock(&priv->mutex);
1006
1007         ath9k_htc_stop_btcoex(priv);
1008
1009         /* Remove a monitor interface if it's present. */
1010         if (priv->ah->is_monitoring)
1011                 ath9k_htc_remove_monitor_interface(priv);
1012
1013         ath9k_hw_phy_disable(ah);
1014         ath9k_hw_disable(ah);
1015         ath9k_htc_ps_restore(priv);
1016         ath9k_htc_setpower(priv, ATH9K_PM_FULL_SLEEP);
1017
1018         priv->op_flags |= OP_INVALID;
1019
1020         ath_dbg(common, CONFIG, "Driver halt\n");
1021         mutex_unlock(&priv->mutex);
1022 }
1023
1024 static int ath9k_htc_add_interface(struct ieee80211_hw *hw,
1025                                    struct ieee80211_vif *vif)
1026 {
1027         struct ath9k_htc_priv *priv = hw->priv;
1028         struct ath9k_htc_vif *avp = (void *)vif->drv_priv;
1029         struct ath_common *common = ath9k_hw_common(priv->ah);
1030         struct ath9k_htc_target_vif hvif;
1031         int ret = 0;
1032         u8 cmd_rsp;
1033
1034         mutex_lock(&priv->mutex);
1035
1036         if (priv->nvifs >= ATH9K_HTC_MAX_VIF) {
1037                 mutex_unlock(&priv->mutex);
1038                 return -ENOBUFS;
1039         }
1040
1041         if (priv->num_ibss_vif ||
1042             (priv->nvifs && vif->type == NL80211_IFTYPE_ADHOC)) {
1043                 ath_err(common, "IBSS coexistence with other modes is not allowed\n");
1044                 mutex_unlock(&priv->mutex);
1045                 return -ENOBUFS;
1046         }
1047
1048         if (((vif->type == NL80211_IFTYPE_AP) ||
1049              (vif->type == NL80211_IFTYPE_ADHOC)) &&
1050             ((priv->num_ap_vif + priv->num_ibss_vif) >= ATH9K_HTC_MAX_BCN_VIF)) {
1051                 ath_err(common, "Max. number of beaconing interfaces reached\n");
1052                 mutex_unlock(&priv->mutex);
1053                 return -ENOBUFS;
1054         }
1055
1056         ath9k_htc_ps_wakeup(priv);
1057         memset(&hvif, 0, sizeof(struct ath9k_htc_target_vif));
1058         memcpy(&hvif.myaddr, vif->addr, ETH_ALEN);
1059
1060         switch (vif->type) {
1061         case NL80211_IFTYPE_STATION:
1062                 hvif.opmode = HTC_M_STA;
1063                 break;
1064         case NL80211_IFTYPE_ADHOC:
1065                 hvif.opmode = HTC_M_IBSS;
1066                 break;
1067         case NL80211_IFTYPE_AP:
1068                 hvif.opmode = HTC_M_HOSTAP;
1069                 break;
1070         default:
1071                 ath_err(common,
1072                         "Interface type %d not yet supported\n", vif->type);
1073                 ret = -EOPNOTSUPP;
1074                 goto out;
1075         }
1076
1077         /* Index starts from zero on the target */
1078         avp->index = hvif.index = ffz(priv->vif_slot);
1079         hvif.rtsthreshold = cpu_to_be16(2304);
1080         WMI_CMD_BUF(WMI_VAP_CREATE_CMDID, &hvif);
1081         if (ret)
1082                 goto out;
1083
1084         /*
1085          * We need a node in target to tx mgmt frames
1086          * before association.
1087          */
1088         ret = ath9k_htc_add_station(priv, vif, NULL);
1089         if (ret) {
1090                 WMI_CMD_BUF(WMI_VAP_REMOVE_CMDID, &hvif);
1091                 goto out;
1092         }
1093
1094         ath9k_htc_set_bssid_mask(priv, vif);
1095
1096         priv->vif_slot |= (1 << avp->index);
1097         priv->nvifs++;
1098
1099         INC_VIF(priv, vif->type);
1100
1101         if ((vif->type == NL80211_IFTYPE_AP) ||
1102             (vif->type == NL80211_IFTYPE_ADHOC))
1103                 ath9k_htc_assign_bslot(priv, vif);
1104
1105         ath9k_htc_set_opmode(priv);
1106
1107         if ((priv->ah->opmode == NL80211_IFTYPE_AP) &&
1108             !(priv->op_flags & OP_ANI_RUNNING)) {
1109                 ath9k_hw_set_tsfadjust(priv->ah, 1);
1110                 ath9k_htc_start_ani(priv);
1111         }
1112
1113         ath_dbg(common, CONFIG, "Attach a VIF of type: %d at idx: %d\n",
1114                 vif->type, avp->index);
1115
1116 out:
1117         ath9k_htc_ps_restore(priv);
1118         mutex_unlock(&priv->mutex);
1119
1120         return ret;
1121 }
1122
1123 static void ath9k_htc_remove_interface(struct ieee80211_hw *hw,
1124                                        struct ieee80211_vif *vif)
1125 {
1126         struct ath9k_htc_priv *priv = hw->priv;
1127         struct ath_common *common = ath9k_hw_common(priv->ah);
1128         struct ath9k_htc_vif *avp = (void *)vif->drv_priv;
1129         struct ath9k_htc_target_vif hvif;
1130         int ret = 0;
1131         u8 cmd_rsp;
1132
1133         mutex_lock(&priv->mutex);
1134         ath9k_htc_ps_wakeup(priv);
1135
1136         memset(&hvif, 0, sizeof(struct ath9k_htc_target_vif));
1137         memcpy(&hvif.myaddr, vif->addr, ETH_ALEN);
1138         hvif.index = avp->index;
1139         WMI_CMD_BUF(WMI_VAP_REMOVE_CMDID, &hvif);
1140         if (ret) {
1141                 ath_err(common, "Unable to remove interface at idx: %d\n",
1142                         avp->index);
1143         }
1144         priv->nvifs--;
1145         priv->vif_slot &= ~(1 << avp->index);
1146
1147         ath9k_htc_remove_station(priv, vif, NULL);
1148
1149         DEC_VIF(priv, vif->type);
1150
1151         if ((vif->type == NL80211_IFTYPE_AP) ||
1152             (vif->type == NL80211_IFTYPE_ADHOC))
1153                 ath9k_htc_remove_bslot(priv, vif);
1154
1155         ath9k_htc_set_opmode(priv);
1156
1157         ath9k_htc_set_bssid_mask(priv, vif);
1158
1159         /*
1160          * Stop ANI only if there are no associated station interfaces.
1161          */
1162         if ((vif->type == NL80211_IFTYPE_AP) && (priv->num_ap_vif == 0)) {
1163                 priv->rearm_ani = false;
1164                 ieee80211_iterate_active_interfaces_atomic(priv->hw,
1165                                                    ath9k_htc_vif_iter, priv);
1166                 if (!priv->rearm_ani)
1167                         ath9k_htc_stop_ani(priv);
1168         }
1169
1170         ath_dbg(common, CONFIG, "Detach Interface at idx: %d\n", avp->index);
1171
1172         ath9k_htc_ps_restore(priv);
1173         mutex_unlock(&priv->mutex);
1174 }
1175
1176 static int ath9k_htc_config(struct ieee80211_hw *hw, u32 changed)
1177 {
1178         struct ath9k_htc_priv *priv = hw->priv;
1179         struct ath_common *common = ath9k_hw_common(priv->ah);
1180         struct ieee80211_conf *conf = &hw->conf;
1181
1182         mutex_lock(&priv->mutex);
1183
1184         if (changed & IEEE80211_CONF_CHANGE_IDLE) {
1185                 bool enable_radio = false;
1186                 bool idle = !!(conf->flags & IEEE80211_CONF_IDLE);
1187
1188                 mutex_lock(&priv->htc_pm_lock);
1189                 if (!idle && priv->ps_idle)
1190                         enable_radio = true;
1191                 priv->ps_idle = idle;
1192                 mutex_unlock(&priv->htc_pm_lock);
1193
1194                 if (enable_radio) {
1195                         ath_dbg(common, CONFIG, "not-idle: enabling radio\n");
1196                         ath9k_htc_setpower(priv, ATH9K_PM_AWAKE);
1197                         ath9k_htc_radio_enable(hw);
1198                 }
1199         }
1200
1201         /*
1202          * Monitor interface should be added before
1203          * IEEE80211_CONF_CHANGE_CHANNEL is handled.
1204          */
1205         if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
1206                 if ((conf->flags & IEEE80211_CONF_MONITOR) &&
1207                     !priv->ah->is_monitoring)
1208                         ath9k_htc_add_monitor_interface(priv);
1209                 else if (priv->ah->is_monitoring)
1210                         ath9k_htc_remove_monitor_interface(priv);
1211         }
1212
1213         if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
1214                 struct ieee80211_channel *curchan = hw->conf.channel;
1215                 int pos = curchan->hw_value;
1216
1217                 ath_dbg(common, CONFIG, "Set channel: %d MHz\n",
1218                         curchan->center_freq);
1219
1220                 ath9k_cmn_update_ichannel(&priv->ah->channels[pos],
1221                                           hw->conf.channel,
1222                                           hw->conf.channel_type);
1223
1224                 if (ath9k_htc_set_channel(priv, hw, &priv->ah->channels[pos]) < 0) {
1225                         ath_err(common, "Unable to set channel\n");
1226                         mutex_unlock(&priv->mutex);
1227                         return -EINVAL;
1228                 }
1229
1230         }
1231
1232         if (changed & IEEE80211_CONF_CHANGE_PS) {
1233                 if (conf->flags & IEEE80211_CONF_PS) {
1234                         ath9k_htc_setpower(priv, ATH9K_PM_NETWORK_SLEEP);
1235                         priv->ps_enabled = true;
1236                 } else {
1237                         priv->ps_enabled = false;
1238                         cancel_work_sync(&priv->ps_work);
1239                         ath9k_htc_setpower(priv, ATH9K_PM_AWAKE);
1240                 }
1241         }
1242
1243         if (changed & IEEE80211_CONF_CHANGE_POWER) {
1244                 priv->txpowlimit = 2 * conf->power_level;
1245                 ath9k_cmn_update_txpow(priv->ah, priv->curtxpow,
1246                                        priv->txpowlimit, &priv->curtxpow);
1247         }
1248
1249         if (changed & IEEE80211_CONF_CHANGE_IDLE) {
1250                 mutex_lock(&priv->htc_pm_lock);
1251                 if (!priv->ps_idle) {
1252                         mutex_unlock(&priv->htc_pm_lock);
1253                         goto out;
1254                 }
1255                 mutex_unlock(&priv->htc_pm_lock);
1256
1257                 ath_dbg(common, CONFIG, "idle: disabling radio\n");
1258                 ath9k_htc_radio_disable(hw);
1259         }
1260
1261 out:
1262         mutex_unlock(&priv->mutex);
1263         return 0;
1264 }
1265
1266 #define SUPPORTED_FILTERS                       \
1267         (FIF_PROMISC_IN_BSS |                   \
1268         FIF_ALLMULTI |                          \
1269         FIF_CONTROL |                           \
1270         FIF_PSPOLL |                            \
1271         FIF_OTHER_BSS |                         \
1272         FIF_BCN_PRBRESP_PROMISC |               \
1273         FIF_PROBE_REQ |                         \
1274         FIF_FCSFAIL)
1275
1276 static void ath9k_htc_configure_filter(struct ieee80211_hw *hw,
1277                                        unsigned int changed_flags,
1278                                        unsigned int *total_flags,
1279                                        u64 multicast)
1280 {
1281         struct ath9k_htc_priv *priv = hw->priv;
1282         u32 rfilt;
1283
1284         mutex_lock(&priv->mutex);
1285         changed_flags &= SUPPORTED_FILTERS;
1286         *total_flags &= SUPPORTED_FILTERS;
1287
1288         if (priv->op_flags & OP_INVALID) {
1289                 ath_dbg(ath9k_hw_common(priv->ah), ANY,
1290                         "Unable to configure filter on invalid state\n");
1291                 mutex_unlock(&priv->mutex);
1292                 return;
1293         }
1294         ath9k_htc_ps_wakeup(priv);
1295
1296         priv->rxfilter = *total_flags;
1297         rfilt = ath9k_htc_calcrxfilter(priv);
1298         ath9k_hw_setrxfilter(priv->ah, rfilt);
1299
1300         ath_dbg(ath9k_hw_common(priv->ah), CONFIG, "Set HW RX filter: 0x%x\n",
1301                 rfilt);
1302
1303         ath9k_htc_ps_restore(priv);
1304         mutex_unlock(&priv->mutex);
1305 }
1306
1307 static int ath9k_htc_sta_add(struct ieee80211_hw *hw,
1308                              struct ieee80211_vif *vif,
1309                              struct ieee80211_sta *sta)
1310 {
1311         struct ath9k_htc_priv *priv = hw->priv;
1312         int ret;
1313
1314         mutex_lock(&priv->mutex);
1315         ath9k_htc_ps_wakeup(priv);
1316         ret = ath9k_htc_add_station(priv, vif, sta);
1317         if (!ret)
1318                 ath9k_htc_init_rate(priv, sta);
1319         ath9k_htc_ps_restore(priv);
1320         mutex_unlock(&priv->mutex);
1321
1322         return ret;
1323 }
1324
1325 static int ath9k_htc_sta_remove(struct ieee80211_hw *hw,
1326                                 struct ieee80211_vif *vif,
1327                                 struct ieee80211_sta *sta)
1328 {
1329         struct ath9k_htc_priv *priv = hw->priv;
1330         struct ath9k_htc_sta *ista;
1331         int ret;
1332
1333         mutex_lock(&priv->mutex);
1334         ath9k_htc_ps_wakeup(priv);
1335         ista = (struct ath9k_htc_sta *) sta->drv_priv;
1336         htc_sta_drain(priv->htc, ista->index);
1337         ret = ath9k_htc_remove_station(priv, vif, sta);
1338         ath9k_htc_ps_restore(priv);
1339         mutex_unlock(&priv->mutex);
1340
1341         return ret;
1342 }
1343
1344 static int ath9k_htc_conf_tx(struct ieee80211_hw *hw,
1345                              struct ieee80211_vif *vif, u16 queue,
1346                              const struct ieee80211_tx_queue_params *params)
1347 {
1348         struct ath9k_htc_priv *priv = hw->priv;
1349         struct ath_common *common = ath9k_hw_common(priv->ah);
1350         struct ath9k_tx_queue_info qi;
1351         int ret = 0, qnum;
1352
1353         if (queue >= WME_NUM_AC)
1354                 return 0;
1355
1356         mutex_lock(&priv->mutex);
1357         ath9k_htc_ps_wakeup(priv);
1358
1359         memset(&qi, 0, sizeof(struct ath9k_tx_queue_info));
1360
1361         qi.tqi_aifs = params->aifs;
1362         qi.tqi_cwmin = params->cw_min;
1363         qi.tqi_cwmax = params->cw_max;
1364         qi.tqi_burstTime = params->txop;
1365
1366         qnum = get_hw_qnum(queue, priv->hwq_map);
1367
1368         ath_dbg(common, CONFIG,
1369                 "Configure tx [queue/hwq] [%d/%d],  aifs: %d, cw_min: %d, cw_max: %d, txop: %d\n",
1370                 queue, qnum, params->aifs, params->cw_min,
1371                 params->cw_max, params->txop);
1372
1373         ret = ath_htc_txq_update(priv, qnum, &qi);
1374         if (ret) {
1375                 ath_err(common, "TXQ Update failed\n");
1376                 goto out;
1377         }
1378
1379         if ((priv->ah->opmode == NL80211_IFTYPE_ADHOC) &&
1380             (qnum == priv->hwq_map[WME_AC_BE]))
1381                     ath9k_htc_beaconq_config(priv);
1382 out:
1383         ath9k_htc_ps_restore(priv);
1384         mutex_unlock(&priv->mutex);
1385
1386         return ret;
1387 }
1388
1389 static int ath9k_htc_set_key(struct ieee80211_hw *hw,
1390                              enum set_key_cmd cmd,
1391                              struct ieee80211_vif *vif,
1392                              struct ieee80211_sta *sta,
1393                              struct ieee80211_key_conf *key)
1394 {
1395         struct ath9k_htc_priv *priv = hw->priv;
1396         struct ath_common *common = ath9k_hw_common(priv->ah);
1397         int ret = 0;
1398
1399         if (htc_modparam_nohwcrypt)
1400                 return -ENOSPC;
1401
1402         if ((vif->type == NL80211_IFTYPE_ADHOC ||
1403              vif->type == NL80211_IFTYPE_MESH_POINT) &&
1404             (key->cipher == WLAN_CIPHER_SUITE_TKIP ||
1405              key->cipher == WLAN_CIPHER_SUITE_CCMP) &&
1406             !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) {
1407                 /*
1408                  * For now, disable hw crypto for the RSN IBSS group keys. This
1409                  * could be optimized in the future to use a modified key cache
1410                  * design to support per-STA RX GTK, but until that gets
1411                  * implemented, use of software crypto for group addressed
1412                  * frames is a acceptable to allow RSN IBSS to be used.
1413                  */
1414                 return -EOPNOTSUPP;
1415         }
1416
1417         mutex_lock(&priv->mutex);
1418         ath_dbg(common, CONFIG, "Set HW Key\n");
1419         ath9k_htc_ps_wakeup(priv);
1420
1421         switch (cmd) {
1422         case SET_KEY:
1423                 ret = ath_key_config(common, vif, sta, key);
1424                 if (ret >= 0) {
1425                         key->hw_key_idx = ret;
1426                         /* push IV and Michael MIC generation to stack */
1427                         key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
1428                         if (key->cipher == WLAN_CIPHER_SUITE_TKIP)
1429                                 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
1430                         if (priv->ah->sw_mgmt_crypto &&
1431                             key->cipher == WLAN_CIPHER_SUITE_CCMP)
1432                                 key->flags |= IEEE80211_KEY_FLAG_SW_MGMT;
1433                         ret = 0;
1434                 }
1435                 break;
1436         case DISABLE_KEY:
1437                 ath_key_delete(common, key);
1438                 break;
1439         default:
1440                 ret = -EINVAL;
1441         }
1442
1443         ath9k_htc_ps_restore(priv);
1444         mutex_unlock(&priv->mutex);
1445
1446         return ret;
1447 }
1448
1449 static void ath9k_htc_set_bssid(struct ath9k_htc_priv *priv)
1450 {
1451         struct ath_common *common = ath9k_hw_common(priv->ah);
1452
1453         ath9k_hw_write_associd(priv->ah);
1454         ath_dbg(common, CONFIG, "BSSID: %pM aid: 0x%x\n",
1455                 common->curbssid, common->curaid);
1456 }
1457
1458 static void ath9k_htc_bss_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
1459 {
1460         struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *)data;
1461         struct ath_common *common = ath9k_hw_common(priv->ah);
1462         struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
1463
1464         if ((vif->type == NL80211_IFTYPE_STATION) && bss_conf->assoc) {
1465                 common->curaid = bss_conf->aid;
1466                 memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN);
1467         }
1468 }
1469
1470 static void ath9k_htc_choose_set_bssid(struct ath9k_htc_priv *priv)
1471 {
1472         if (priv->num_sta_assoc_vif == 1) {
1473                 ieee80211_iterate_active_interfaces_atomic(priv->hw,
1474                                                            ath9k_htc_bss_iter, priv);
1475                 ath9k_htc_set_bssid(priv);
1476         }
1477 }
1478
1479 static void ath9k_htc_bss_info_changed(struct ieee80211_hw *hw,
1480                                        struct ieee80211_vif *vif,
1481                                        struct ieee80211_bss_conf *bss_conf,
1482                                        u32 changed)
1483 {
1484         struct ath9k_htc_priv *priv = hw->priv;
1485         struct ath_hw *ah = priv->ah;
1486         struct ath_common *common = ath9k_hw_common(ah);
1487
1488         mutex_lock(&priv->mutex);
1489         ath9k_htc_ps_wakeup(priv);
1490
1491         if (changed & BSS_CHANGED_ASSOC) {
1492                 ath_dbg(common, CONFIG, "BSS Changed ASSOC %d\n",
1493                         bss_conf->assoc);
1494
1495                 bss_conf->assoc ?
1496                         priv->num_sta_assoc_vif++ : priv->num_sta_assoc_vif--;
1497
1498                 if (priv->ah->opmode == NL80211_IFTYPE_STATION) {
1499                         if (bss_conf->assoc && (priv->num_sta_assoc_vif == 1))
1500                                 ath9k_htc_start_ani(priv);
1501                         else if (priv->num_sta_assoc_vif == 0)
1502                                 ath9k_htc_stop_ani(priv);
1503                 }
1504         }
1505
1506         if (changed & BSS_CHANGED_BSSID) {
1507                 if (priv->ah->opmode == NL80211_IFTYPE_ADHOC) {
1508                         common->curaid = bss_conf->aid;
1509                         memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN);
1510                         ath9k_htc_set_bssid(priv);
1511                 } else if (priv->ah->opmode == NL80211_IFTYPE_STATION) {
1512                         ath9k_htc_choose_set_bssid(priv);
1513                 }
1514         }
1515
1516         if ((changed & BSS_CHANGED_BEACON_ENABLED) && bss_conf->enable_beacon) {
1517                 ath_dbg(common, CONFIG, "Beacon enabled for BSS: %pM\n",
1518                         bss_conf->bssid);
1519                 ath9k_htc_set_tsfadjust(priv, vif);
1520                 priv->op_flags |= OP_ENABLE_BEACON;
1521                 ath9k_htc_beacon_config(priv, vif);
1522         }
1523
1524         if ((changed & BSS_CHANGED_BEACON_ENABLED) && !bss_conf->enable_beacon) {
1525                 /*
1526                  * Disable SWBA interrupt only if there are no
1527                  * AP/IBSS interfaces.
1528                  */
1529                 if ((priv->num_ap_vif <= 1) || priv->num_ibss_vif) {
1530                         ath_dbg(common, CONFIG,
1531                                 "Beacon disabled for BSS: %pM\n",
1532                                 bss_conf->bssid);
1533                         priv->op_flags &= ~OP_ENABLE_BEACON;
1534                         ath9k_htc_beacon_config(priv, vif);
1535                 }
1536         }
1537
1538         if (changed & BSS_CHANGED_BEACON_INT) {
1539                 /*
1540                  * Reset the HW TSF for the first AP interface.
1541                  */
1542                 if ((priv->ah->opmode == NL80211_IFTYPE_AP) &&
1543                     (priv->nvifs == 1) &&
1544                     (priv->num_ap_vif == 1) &&
1545                     (vif->type == NL80211_IFTYPE_AP)) {
1546                         priv->op_flags |= OP_TSF_RESET;
1547                 }
1548                 ath_dbg(common, CONFIG,
1549                         "Beacon interval changed for BSS: %pM\n",
1550                         bss_conf->bssid);
1551                 ath9k_htc_beacon_config(priv, vif);
1552         }
1553
1554         if (changed & BSS_CHANGED_ERP_SLOT) {
1555                 if (bss_conf->use_short_slot)
1556                         ah->slottime = 9;
1557                 else
1558                         ah->slottime = 20;
1559
1560                 ath9k_hw_init_global_settings(ah);
1561         }
1562
1563         if (changed & BSS_CHANGED_HT)
1564                 ath9k_htc_update_rate(priv, vif, bss_conf);
1565
1566         ath9k_htc_ps_restore(priv);
1567         mutex_unlock(&priv->mutex);
1568 }
1569
1570 static u64 ath9k_htc_get_tsf(struct ieee80211_hw *hw,
1571                              struct ieee80211_vif *vif)
1572 {
1573         struct ath9k_htc_priv *priv = hw->priv;
1574         u64 tsf;
1575
1576         mutex_lock(&priv->mutex);
1577         ath9k_htc_ps_wakeup(priv);
1578         tsf = ath9k_hw_gettsf64(priv->ah);
1579         ath9k_htc_ps_restore(priv);
1580         mutex_unlock(&priv->mutex);
1581
1582         return tsf;
1583 }
1584
1585 static void ath9k_htc_set_tsf(struct ieee80211_hw *hw,
1586                               struct ieee80211_vif *vif, u64 tsf)
1587 {
1588         struct ath9k_htc_priv *priv = hw->priv;
1589
1590         mutex_lock(&priv->mutex);
1591         ath9k_htc_ps_wakeup(priv);
1592         ath9k_hw_settsf64(priv->ah, tsf);
1593         ath9k_htc_ps_restore(priv);
1594         mutex_unlock(&priv->mutex);
1595 }
1596
1597 static void ath9k_htc_reset_tsf(struct ieee80211_hw *hw,
1598                                 struct ieee80211_vif *vif)
1599 {
1600         struct ath9k_htc_priv *priv = hw->priv;
1601
1602         mutex_lock(&priv->mutex);
1603         ath9k_htc_ps_wakeup(priv);
1604         ath9k_hw_reset_tsf(priv->ah);
1605         ath9k_htc_ps_restore(priv);
1606         mutex_unlock(&priv->mutex);
1607 }
1608
1609 static int ath9k_htc_ampdu_action(struct ieee80211_hw *hw,
1610                                   struct ieee80211_vif *vif,
1611                                   enum ieee80211_ampdu_mlme_action action,
1612                                   struct ieee80211_sta *sta,
1613                                   u16 tid, u16 *ssn, u8 buf_size)
1614 {
1615         struct ath9k_htc_priv *priv = hw->priv;
1616         struct ath9k_htc_sta *ista;
1617         int ret = 0;
1618
1619         mutex_lock(&priv->mutex);
1620         ath9k_htc_ps_wakeup(priv);
1621
1622         switch (action) {
1623         case IEEE80211_AMPDU_RX_START:
1624                 break;
1625         case IEEE80211_AMPDU_RX_STOP:
1626                 break;
1627         case IEEE80211_AMPDU_TX_START:
1628                 ret = ath9k_htc_tx_aggr_oper(priv, vif, sta, action, tid);
1629                 if (!ret)
1630                         ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1631                 break;
1632         case IEEE80211_AMPDU_TX_STOP:
1633                 ath9k_htc_tx_aggr_oper(priv, vif, sta, action, tid);
1634                 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1635                 break;
1636         case IEEE80211_AMPDU_TX_OPERATIONAL:
1637                 ista = (struct ath9k_htc_sta *) sta->drv_priv;
1638                 spin_lock_bh(&priv->tx.tx_lock);
1639                 ista->tid_state[tid] = AGGR_OPERATIONAL;
1640                 spin_unlock_bh(&priv->tx.tx_lock);
1641                 break;
1642         default:
1643                 ath_err(ath9k_hw_common(priv->ah), "Unknown AMPDU action\n");
1644         }
1645
1646         ath9k_htc_ps_restore(priv);
1647         mutex_unlock(&priv->mutex);
1648
1649         return ret;
1650 }
1651
1652 static void ath9k_htc_sw_scan_start(struct ieee80211_hw *hw)
1653 {
1654         struct ath9k_htc_priv *priv = hw->priv;
1655
1656         mutex_lock(&priv->mutex);
1657         spin_lock_bh(&priv->beacon_lock);
1658         priv->op_flags |= OP_SCANNING;
1659         spin_unlock_bh(&priv->beacon_lock);
1660         cancel_work_sync(&priv->ps_work);
1661         ath9k_htc_stop_ani(priv);
1662         mutex_unlock(&priv->mutex);
1663 }
1664
1665 static void ath9k_htc_sw_scan_complete(struct ieee80211_hw *hw)
1666 {
1667         struct ath9k_htc_priv *priv = hw->priv;
1668
1669         mutex_lock(&priv->mutex);
1670         spin_lock_bh(&priv->beacon_lock);
1671         priv->op_flags &= ~OP_SCANNING;
1672         spin_unlock_bh(&priv->beacon_lock);
1673         ath9k_htc_ps_wakeup(priv);
1674         ath9k_htc_vif_reconfig(priv);
1675         ath9k_htc_ps_restore(priv);
1676         mutex_unlock(&priv->mutex);
1677 }
1678
1679 static int ath9k_htc_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
1680 {
1681         return 0;
1682 }
1683
1684 static void ath9k_htc_set_coverage_class(struct ieee80211_hw *hw,
1685                                          u8 coverage_class)
1686 {
1687         struct ath9k_htc_priv *priv = hw->priv;
1688
1689         mutex_lock(&priv->mutex);
1690         ath9k_htc_ps_wakeup(priv);
1691         priv->ah->coverage_class = coverage_class;
1692         ath9k_hw_init_global_settings(priv->ah);
1693         ath9k_htc_ps_restore(priv);
1694         mutex_unlock(&priv->mutex);
1695 }
1696
1697 /*
1698  * Currently, this is used only for selecting the minimum rate
1699  * for management frames, rate selection for data frames remain
1700  * unaffected.
1701  */
1702 static int ath9k_htc_set_bitrate_mask(struct ieee80211_hw *hw,
1703                                       struct ieee80211_vif *vif,
1704                                       const struct cfg80211_bitrate_mask *mask)
1705 {
1706         struct ath9k_htc_priv *priv = hw->priv;
1707         struct ath_common *common = ath9k_hw_common(priv->ah);
1708         struct ath9k_htc_target_rate_mask tmask;
1709         struct ath9k_htc_vif *avp = (void *)vif->drv_priv;
1710         int ret = 0;
1711         u8 cmd_rsp;
1712
1713         memset(&tmask, 0, sizeof(struct ath9k_htc_target_rate_mask));
1714
1715         tmask.vif_index = avp->index;
1716         tmask.band = IEEE80211_BAND_2GHZ;
1717         tmask.mask = cpu_to_be32(mask->control[IEEE80211_BAND_2GHZ].legacy);
1718
1719         WMI_CMD_BUF(WMI_BITRATE_MASK_CMDID, &tmask);
1720         if (ret) {
1721                 ath_err(common,
1722                         "Unable to set 2G rate mask for "
1723                         "interface at idx: %d\n", avp->index);
1724                 goto out;
1725         }
1726
1727         tmask.band = IEEE80211_BAND_5GHZ;
1728         tmask.mask = cpu_to_be32(mask->control[IEEE80211_BAND_5GHZ].legacy);
1729
1730         WMI_CMD_BUF(WMI_BITRATE_MASK_CMDID, &tmask);
1731         if (ret) {
1732                 ath_err(common,
1733                         "Unable to set 5G rate mask for "
1734                         "interface at idx: %d\n", avp->index);
1735                 goto out;
1736         }
1737
1738         ath_dbg(common, CONFIG, "Set bitrate masks: 0x%x, 0x%x\n",
1739                 mask->control[IEEE80211_BAND_2GHZ].legacy,
1740                 mask->control[IEEE80211_BAND_5GHZ].legacy);
1741 out:
1742         return ret;
1743 }
1744
1745
1746 static int ath9k_htc_get_stats(struct ieee80211_hw *hw,
1747                                struct ieee80211_low_level_stats *stats)
1748 {
1749         struct ath9k_htc_priv *priv = hw->priv;
1750         struct ath_hw *ah = priv->ah;
1751         struct ath9k_mib_stats *mib_stats = &ah->ah_mibStats;
1752
1753         stats->dot11ACKFailureCount = mib_stats->ackrcv_bad;
1754         stats->dot11RTSFailureCount = mib_stats->rts_bad;
1755         stats->dot11FCSErrorCount = mib_stats->fcs_bad;
1756         stats->dot11RTSSuccessCount = mib_stats->rts_good;
1757
1758         return 0;
1759 }
1760
1761 struct ieee80211_ops ath9k_htc_ops = {
1762         .tx                 = ath9k_htc_tx,
1763         .start              = ath9k_htc_start,
1764         .stop               = ath9k_htc_stop,
1765         .add_interface      = ath9k_htc_add_interface,
1766         .remove_interface   = ath9k_htc_remove_interface,
1767         .config             = ath9k_htc_config,
1768         .configure_filter   = ath9k_htc_configure_filter,
1769         .sta_add            = ath9k_htc_sta_add,
1770         .sta_remove         = ath9k_htc_sta_remove,
1771         .conf_tx            = ath9k_htc_conf_tx,
1772         .bss_info_changed   = ath9k_htc_bss_info_changed,
1773         .set_key            = ath9k_htc_set_key,
1774         .get_tsf            = ath9k_htc_get_tsf,
1775         .set_tsf            = ath9k_htc_set_tsf,
1776         .reset_tsf          = ath9k_htc_reset_tsf,
1777         .ampdu_action       = ath9k_htc_ampdu_action,
1778         .sw_scan_start      = ath9k_htc_sw_scan_start,
1779         .sw_scan_complete   = ath9k_htc_sw_scan_complete,
1780         .set_rts_threshold  = ath9k_htc_set_rts_threshold,
1781         .rfkill_poll        = ath9k_htc_rfkill_poll_state,
1782         .set_coverage_class = ath9k_htc_set_coverage_class,
1783         .set_bitrate_mask   = ath9k_htc_set_bitrate_mask,
1784         .get_stats          = ath9k_htc_get_stats,
1785 };