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

   1 /*
   2  * Copyright (c) 2010 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 #define FUDGE 2
  20
  21 static void ath9k_htc_beacon_config_sta(struct ath9k_htc_priv *priv,
  22                                         struct htc_beacon_config *bss_conf)
  23 {
  24         struct ath_common *common = ath9k_hw_common(priv->ah);
  25         struct ath9k_beacon_state bs;
  26         enum ath9k_int imask = 0;
  27         int dtimperiod, dtimcount, sleepduration;
  28         int cfpperiod, cfpcount, bmiss_timeout;
  29         u32 nexttbtt = 0, intval, tsftu;
  30         __be32 htc_imask = 0;
  31         u64 tsf;
  32         int num_beacons, offset, dtim_dec_count, cfp_dec_count;
  33         int ret;
  34         u8 cmd_rsp;
  35
  36         memset(&bs, 0, sizeof(bs));
  37
  38         intval = bss_conf->beacon_interval & ATH9K_BEACON_PERIOD;
  39         bmiss_timeout = (ATH_DEFAULT_BMISS_LIMIT * bss_conf->beacon_interval);
  40
  41         /*
  42          * Setup dtim and cfp parameters according to
  43          * last beacon we received (which may be none).
  44          */
  45         dtimperiod = bss_conf->dtim_period;
  46         if (dtimperiod <= 0)            /* NB: 0 if not known */
  47                 dtimperiod = 1;
  48         dtimcount = 1;
  49         if (dtimcount >= dtimperiod)    /* NB: sanity check */
  50                 dtimcount = 0;
  51         cfpperiod = 1;                  /* NB: no PCF support yet */
  52         cfpcount = 0;
  53
  54         sleepduration = intval;
  55         if (sleepduration <= 0)
  56                 sleepduration = intval;
  57
  58         /*
  59          * Pull nexttbtt forward to reflect the current
  60          * TSF and calculate dtim+cfp state for the result.
  61          */
  62         tsf = ath9k_hw_gettsf64(priv->ah);
  63         tsftu = TSF_TO_TU(tsf>>32, tsf) + FUDGE;
  64
  65         num_beacons = tsftu / intval + 1;
  66         offset = tsftu % intval;
  67         nexttbtt = tsftu - offset;
  68         if (offset)
  69                 nexttbtt += intval;
  70
  71         /* DTIM Beacon every dtimperiod Beacon */
  72         dtim_dec_count = num_beacons % dtimperiod;
  73         /* CFP every cfpperiod DTIM Beacon */
  74         cfp_dec_count = (num_beacons / dtimperiod) % cfpperiod;
  75         if (dtim_dec_count)
  76                 cfp_dec_count++;
  77
  78         dtimcount -= dtim_dec_count;
  79         if (dtimcount < 0)
  80                 dtimcount += dtimperiod;
  81
  82         cfpcount -= cfp_dec_count;
  83         if (cfpcount < 0)
  84                 cfpcount += cfpperiod;
  85
  86         bs.bs_intval = intval;
  87         bs.bs_nexttbtt = nexttbtt;
  88         bs.bs_dtimperiod = dtimperiod*intval;
  89         bs.bs_nextdtim = bs.bs_nexttbtt + dtimcount*intval;
  90         bs.bs_cfpperiod = cfpperiod*bs.bs_dtimperiod;
  91         bs.bs_cfpnext = bs.bs_nextdtim + cfpcount*bs.bs_dtimperiod;
  92         bs.bs_cfpmaxduration = 0;
  93
  94         /*
  95          * Calculate the number of consecutive beacons to miss* before taking
  96          * a BMISS interrupt. The configuration is specified in TU so we only
  97          * need calculate based on the beacon interval.  Note that we clamp the
  98          * result to at most 15 beacons.
  99          */
 100         if (sleepduration > intval) {
 101                 bs.bs_bmissthreshold = ATH_DEFAULT_BMISS_LIMIT / 2;
 102         } else {
 103                 bs.bs_bmissthreshold = DIV_ROUND_UP(bmiss_timeout, intval);
 104                 if (bs.bs_bmissthreshold > 15)
 105                         bs.bs_bmissthreshold = 15;
 106                 else if (bs.bs_bmissthreshold <= 0)
 107                         bs.bs_bmissthreshold = 1;
 108         }
 109
 110         /*
 111          * Calculate sleep duration. The configuration is given in ms.
 112          * We ensure a multiple of the beacon period is used. Also, if the sleep
 113          * duration is greater than the DTIM period then it makes senses
 114          * to make it a multiple of that.
 115          *
 116          * XXX fixed at 100ms
 117          */
 118
 119         bs.bs_sleepduration = roundup(IEEE80211_MS_TO_TU(100), sleepduration);
 120         if (bs.bs_sleepduration > bs.bs_dtimperiod)
 121                 bs.bs_sleepduration = bs.bs_dtimperiod;
 122
 123         /* TSF out of range threshold fixed at 1 second */
 124         bs.bs_tsfoor_threshold = ATH9K_TSFOOR_THRESHOLD;
 125
 126         ath_dbg(common, ATH_DBG_CONFIG, "intval: %u tsf: %llu tsftu: %u\n",
 127                 intval, tsf, tsftu);
 128         ath_dbg(common, ATH_DBG_CONFIG,
 129                 "bmiss: %u sleep: %u cfp-period: %u maxdur: %u next: %u\n",
 130                 bs.bs_bmissthreshold, bs.bs_sleepduration,
 131                 bs.bs_cfpperiod, bs.bs_cfpmaxduration, bs.bs_cfpnext);
 132
 133         /* Set the computed STA beacon timers */
 134
 135         WMI_CMD(WMI_DISABLE_INTR_CMDID);
 136         ath9k_hw_set_sta_beacon_timers(priv->ah, &bs);
 137         imask |= ATH9K_INT_BMISS;
 138         htc_imask = cpu_to_be32(imask);
 139         WMI_CMD_BUF(WMI_ENABLE_INTR_CMDID, &htc_imask);
 140 }
 141
 142 static void ath9k_htc_beacon_config_ap(struct ath9k_htc_priv *priv,
 143                                        struct htc_beacon_config *bss_conf)
 144 {
 145         struct ath_common *common = ath9k_hw_common(priv->ah);
 146         enum ath9k_int imask = 0;
 147         u32 nexttbtt, intval, tsftu;
 148         __be32 htc_imask = 0;
 149         int ret;
 150         u8 cmd_rsp;
 151         u64 tsf;
 152
 153         intval = bss_conf->beacon_interval & ATH9K_BEACON_PERIOD;
 154         intval /= ATH9K_HTC_MAX_BCN_VIF;
 155         nexttbtt = intval;
 156
 157         if (priv->op_flags & OP_TSF_RESET) {
 158                 ath9k_hw_reset_tsf(priv->ah);
 159                 priv->op_flags &= ~OP_TSF_RESET;
 160         } else {
 161                 /*
 162                  * Pull nexttbtt forward to reflect the current TSF.
 163                  */
 164                 tsf = ath9k_hw_gettsf64(priv->ah);
 165                 tsftu = TSF_TO_TU(tsf >> 32, tsf) + FUDGE;
 166                 do {
 167                         nexttbtt += intval;
 168                 } while (nexttbtt < tsftu);
 169         }
 170
 171         if (priv->op_flags & OP_ENABLE_BEACON)
 172                 imask |= ATH9K_INT_SWBA;
 173
 174         ath_dbg(common, ATH_DBG_CONFIG,
 175                 "AP Beacon config, intval: %d, nexttbtt: %u "
 176                 "imask: 0x%x\n",
 177                 bss_conf->beacon_interval, nexttbtt, imask);
 178
 179         WMI_CMD(WMI_DISABLE_INTR_CMDID);
 180         ath9k_hw_beaconinit(priv->ah, TU_TO_USEC(nexttbtt), TU_TO_USEC(intval));
 181         priv->cur_beacon_conf.bmiss_cnt = 0;
 182         htc_imask = cpu_to_be32(imask);
 183         WMI_CMD_BUF(WMI_ENABLE_INTR_CMDID, &htc_imask);
 184 }
 185
 186 static void ath9k_htc_beacon_config_adhoc(struct ath9k_htc_priv *priv,
 187                                           struct htc_beacon_config *bss_conf)
 188 {
 189         struct ath_common *common = ath9k_hw_common(priv->ah);
 190         enum ath9k_int imask = 0;
 191         u32 nexttbtt, intval, tsftu;
 192         __be32 htc_imask = 0;
 193         int ret;
 194         u8 cmd_rsp;
 195         u64 tsf;
 196
 197         intval = bss_conf->beacon_interval & ATH9K_BEACON_PERIOD;
 198         nexttbtt = intval;
 199
 200         /*
 201          * Pull nexttbtt forward to reflect the current TSF.
 202          */
 203         tsf = ath9k_hw_gettsf64(priv->ah);
 204         tsftu = TSF_TO_TU(tsf >> 32, tsf) + FUDGE;
 205         do {
 206                 nexttbtt += intval;
 207         } while (nexttbtt < tsftu);
 208
 209         if (priv->op_flags & OP_ENABLE_BEACON)
 210                 imask |= ATH9K_INT_SWBA;
 211
 212         ath_dbg(common, ATH_DBG_CONFIG,
 213                 "IBSS Beacon config, intval: %d, nexttbtt: %u, imask: 0x%x\n",
 214                 bss_conf->beacon_interval, nexttbtt, imask);
 215
 216         WMI_CMD(WMI_DISABLE_INTR_CMDID);
 217         ath9k_hw_beaconinit(priv->ah, TU_TO_USEC(nexttbtt), TU_TO_USEC(intval));
 218         priv->cur_beacon_conf.bmiss_cnt = 0;
 219         htc_imask = cpu_to_be32(imask);
 220         WMI_CMD_BUF(WMI_ENABLE_INTR_CMDID, &htc_imask);
 221 }
 222
 223 void ath9k_htc_beaconep(void *drv_priv, struct sk_buff *skb,
 224                         enum htc_endpoint_id ep_id, bool txok)
 225 {
 226         dev_kfree_skb_any(skb);
 227 }
 228
 229 static void ath9k_htc_send_beacon(struct ath9k_htc_priv *priv,
 230                                   int slot)
 231 {
 232         struct ieee80211_vif *vif;
 233         struct ath9k_htc_vif *avp;
 234         struct tx_beacon_header beacon_hdr;
 235         struct ath9k_htc_tx_ctl tx_ctl;
 236         struct ieee80211_tx_info *info;
 237         struct ieee80211_mgmt *mgmt;
 238         struct sk_buff *beacon;
 239         u8 *tx_fhdr;
 240
 241         memset(&beacon_hdr, 0, sizeof(struct tx_beacon_header));
 242         memset(&tx_ctl, 0, sizeof(struct ath9k_htc_tx_ctl));
 243
 244         spin_lock_bh(&priv->beacon_lock);
 245
 246         vif = priv->cur_beacon_conf.bslot[slot];
 247         avp = (struct ath9k_htc_vif *)vif->drv_priv;
 248
 249         if (unlikely(priv->op_flags & OP_SCANNING)) {
 250                 spin_unlock_bh(&priv->beacon_lock);
 251                 return;
 252         }
 253
 254         /* Get a new beacon */
 255         beacon = ieee80211_beacon_get(priv->hw, vif);
 256         if (!beacon) {
 257                 spin_unlock_bh(&priv->beacon_lock);
 258                 return;
 259         }
 260
 261         /*
 262          * Update the TSF adjust value here, the HW will
 263          * add this value for every beacon.
 264          */
 265         mgmt = (struct ieee80211_mgmt *)beacon->data;
 266         mgmt->u.beacon.timestamp = avp->tsfadjust;
 267
 268         info = IEEE80211_SKB_CB(beacon);
 269         if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) {
 270                 struct ieee80211_hdr *hdr =
 271                         (struct ieee80211_hdr *) beacon->data;
 272                 avp->seq_no += 0x10;
 273                 hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
 274                 hdr->seq_ctrl |= cpu_to_le16(avp->seq_no);
 275         }
 276
 277         tx_ctl.type = ATH9K_HTC_NORMAL;
 278         beacon_hdr.vif_index = avp->index;
 279         tx_fhdr = skb_push(beacon, sizeof(beacon_hdr));
 280         memcpy(tx_fhdr, (u8 *) &beacon_hdr, sizeof(beacon_hdr));
 281
 282         htc_send(priv->htc, beacon, priv->beacon_ep, &tx_ctl);
 283
 284         spin_unlock_bh(&priv->beacon_lock);
 285 }
 286
 287 static int ath9k_htc_choose_bslot(struct ath9k_htc_priv *priv)
 288 {
 289         struct ath_common *common = ath9k_hw_common(priv->ah);
 290         unsigned long flags;
 291         u64 tsf;
 292         u32 tsftu;
 293         u16 intval;
 294         int slot;
 295
 296         intval = priv->cur_beacon_conf.beacon_interval & ATH9K_BEACON_PERIOD;
 297
 298         spin_lock_irqsave(&priv->wmi->wmi_lock, flags);
 299         tsf = priv->wmi->tsf;
 300         spin_unlock_irqrestore(&priv->wmi->wmi_lock, flags);
 301
 302         tsftu = TSF_TO_TU(tsf >> 32, tsf);
 303         slot = ((tsftu % intval) * ATH9K_HTC_MAX_BCN_VIF) / intval;
 304         slot = ATH9K_HTC_MAX_BCN_VIF - slot - 1;
 305
 306         ath_dbg(common, ATH_DBG_BEACON,
 307                 "Choose slot: %d, tsf: %llu, tsftu: %u, intval: %u\n",
 308                 slot, tsf, tsftu, intval);
 309
 310         return slot;
 311 }
 312
 313 void ath9k_htc_swba(struct ath9k_htc_priv *priv)
 314 {
 315         struct ath_common *common = ath9k_hw_common(priv->ah);
 316         unsigned long flags;
 317         int slot;
 318
 319         spin_lock_irqsave(&priv->wmi->wmi_lock, flags);
 320         if (priv->wmi->beacon_pending != 0) {
 321                 spin_unlock_irqrestore(&priv->wmi->wmi_lock, flags);
 322                 priv->cur_beacon_conf.bmiss_cnt++;
 323                 if (priv->cur_beacon_conf.bmiss_cnt > BSTUCK_THRESHOLD) {
 324                         ath_dbg(common, ATH_DBG_BEACON,
 325                                 "Beacon stuck, HW reset\n");
 326                         ath9k_htc_reset(priv);
 327                 }
 328                 return;
 329         }
 330         spin_unlock_irqrestore(&priv->wmi->wmi_lock, flags);
 331
 332         if (priv->cur_beacon_conf.bmiss_cnt) {
 333                 ath_dbg(common, ATH_DBG_BEACON,
 334                         "Resuming beacon xmit after %u misses\n",
 335                         priv->cur_beacon_conf.bmiss_cnt);
 336                 priv->cur_beacon_conf.bmiss_cnt = 0;
 337         }
 338
 339         slot = ath9k_htc_choose_bslot(priv);
 340         spin_lock_bh(&priv->beacon_lock);
 341         if (priv->cur_beacon_conf.bslot[slot] == NULL) {
 342                 spin_unlock_bh(&priv->beacon_lock);
 343                 return;
 344         }
 345         spin_unlock_bh(&priv->beacon_lock);
 346
 347         ath9k_htc_send_beacon(priv, slot);
 348 }
 349
 350 /* Currently, only for IBSS */
 351 void ath9k_htc_beaconq_config(struct ath9k_htc_priv *priv)
 352 {
 353         struct ath_hw *ah = priv->ah;
 354         struct ath9k_tx_queue_info qi, qi_be;
 355         int qnum = priv->hwq_map[WME_AC_BE];
 356
 357         memset(&qi, 0, sizeof(struct ath9k_tx_queue_info));
 358         memset(&qi_be, 0, sizeof(struct ath9k_tx_queue_info));
 359
 360         ath9k_hw_get_txq_props(ah, qnum, &qi_be);
 361
 362         qi.tqi_aifs = qi_be.tqi_aifs;
 363         /* For WIFI Beacon Distribution
 364          * Long slot time  : 2x cwmin
 365          * Short slot time : 4x cwmin
 366          */
 367         if (ah->slottime == ATH9K_SLOT_TIME_20)
 368                 qi.tqi_cwmin = 2*qi_be.tqi_cwmin;
 369         else
 370                 qi.tqi_cwmin = 4*qi_be.tqi_cwmin;
 371         qi.tqi_cwmax = qi_be.tqi_cwmax;
 372
 373         if (!ath9k_hw_set_txq_props(ah, priv->beaconq, &qi)) {
 374                 ath_err(ath9k_hw_common(ah),
 375                         "Unable to update beacon queue %u!\n", qnum);
 376         } else {
 377                 ath9k_hw_resettxqueue(ah, priv->beaconq);
 378         }
 379 }
 380
 381 void ath9k_htc_assign_bslot(struct ath9k_htc_priv *priv,
 382                             struct ieee80211_vif *vif)
 383 {
 384         struct ath_common *common = ath9k_hw_common(priv->ah);
 385         struct ath9k_htc_vif *avp = (struct ath9k_htc_vif *)vif->drv_priv;
 386         int i = 0;
 387
 388         spin_lock_bh(&priv->beacon_lock);
 389         for (i = 0; i < ATH9K_HTC_MAX_BCN_VIF; i++) {
 390                 if (priv->cur_beacon_conf.bslot[i] == NULL) {
 391                         avp->bslot = i;
 392                         break;
 393                 }
 394         }
 395
 396         priv->cur_beacon_conf.bslot[avp->bslot] = vif;
 397         spin_unlock_bh(&priv->beacon_lock);
 398
 399         ath_dbg(common, ATH_DBG_CONFIG,
 400                 "Added interface at beacon slot: %d\n", avp->bslot);
 401 }
 402
 403 void ath9k_htc_remove_bslot(struct ath9k_htc_priv *priv,
 404                             struct ieee80211_vif *vif)
 405 {
 406         struct ath_common *common = ath9k_hw_common(priv->ah);
 407         struct ath9k_htc_vif *avp = (struct ath9k_htc_vif *)vif->drv_priv;
 408
 409         spin_lock_bh(&priv->beacon_lock);
 410         priv->cur_beacon_conf.bslot[avp->bslot] = NULL;
 411         spin_unlock_bh(&priv->beacon_lock);
 412
 413         ath_dbg(common, ATH_DBG_CONFIG,
 414                 "Removed interface at beacon slot: %d\n", avp->bslot);
 415 }
 416
 417 /*
 418  * Calculate the TSF adjustment value for all slots
 419  * other than zero.
 420  */
 421 void ath9k_htc_set_tsfadjust(struct ath9k_htc_priv *priv,
 422                              struct ieee80211_vif *vif)
 423 {
 424         struct ath_common *common = ath9k_hw_common(priv->ah);
 425         struct ath9k_htc_vif *avp = (struct ath9k_htc_vif *)vif->drv_priv;
 426         struct htc_beacon_config *cur_conf = &priv->cur_beacon_conf;
 427         u64 tsfadjust;
 428
 429         if (avp->bslot == 0)
 430                 return;
 431
 432         /*
 433          * The beacon interval cannot be different for multi-AP mode,
 434          * and we reach here only for VIF slots greater than zero,
 435          * so beacon_interval is guaranteed to be set in cur_conf.
 436          */
 437         tsfadjust = cur_conf->beacon_interval * avp->bslot / ATH9K_HTC_MAX_BCN_VIF;
 438         avp->tsfadjust = cpu_to_le64(TU_TO_USEC(tsfadjust));
 439
 440         ath_dbg(common, ATH_DBG_CONFIG,
 441                 "tsfadjust is: %llu for bslot: %d\n",
 442                 (unsigned long long)tsfadjust, avp->bslot);
 443 }
 444
 445 static void ath9k_htc_beacon_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
 446 {
 447         bool *beacon_configured = (bool *)data;
 448         struct ath9k_htc_vif *avp = (struct ath9k_htc_vif *) vif->drv_priv;
 449
 450         if (vif->type == NL80211_IFTYPE_STATION &&
 451             avp->beacon_configured)
 452                 *beacon_configured = true;
 453 }
 454
 455 static bool ath9k_htc_check_beacon_config(struct ath9k_htc_priv *priv,
 456                                           struct ieee80211_vif *vif)
 457 {
 458         struct ath_common *common = ath9k_hw_common(priv->ah);
 459         struct htc_beacon_config *cur_conf = &priv->cur_beacon_conf;
 460         struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
 461         bool beacon_configured;
 462
 463         /*
 464          * Changing the beacon interval when multiple AP interfaces
 465          * are configured will affect beacon transmission of all
 466          * of them.
 467          */
 468         if ((priv->ah->opmode == NL80211_IFTYPE_AP) &&
 469             (priv->num_ap_vif > 1) &&
 470             (vif->type == NL80211_IFTYPE_AP) &&
 471             (cur_conf->beacon_interval != bss_conf->beacon_int)) {
 472                 ath_dbg(common, ATH_DBG_CONFIG,
 473                         "Changing beacon interval of multiple AP interfaces !\n");
 474                 return false;
 475         }
 476
 477         /*
 478          * If the HW is operating in AP mode, any new station interfaces that
 479          * are added cannot change the beacon parameters.
 480          */
 481         if (priv->num_ap_vif &&
 482             (vif->type != NL80211_IFTYPE_AP)) {
 483                 ath_dbg(common, ATH_DBG_CONFIG,
 484                         "HW in AP mode, cannot set STA beacon parameters\n");
 485                 return false;
 486         }
 487
 488         /*
 489          * The beacon parameters are configured only for the first
 490          * station interface.
 491          */
 492         if ((priv->ah->opmode == NL80211_IFTYPE_STATION) &&
 493             (priv->num_sta_vif > 1) &&
 494             (vif->type == NL80211_IFTYPE_STATION)) {
 495                 beacon_configured = false;
 496                 ieee80211_iterate_active_interfaces_atomic(priv->hw,
 497                                                            ath9k_htc_beacon_iter,
 498                                                            &beacon_configured);
 499
 500                 if (beacon_configured) {
 501                         ath_dbg(common, ATH_DBG_CONFIG,
 502                                 "Beacon already configured for a station interface\n");
 503                         return false;
 504                 }
 505         }
 506
 507         return true;
 508 }
 509
 510 void ath9k_htc_beacon_config(struct ath9k_htc_priv *priv,
 511                              struct ieee80211_vif *vif)
 512 {
 513         struct ath_common *common = ath9k_hw_common(priv->ah);
 514         struct htc_beacon_config *cur_conf = &priv->cur_beacon_conf;
 515         struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
 516         struct ath9k_htc_vif *avp = (struct ath9k_htc_vif *) vif->drv_priv;
 517
 518         if (!ath9k_htc_check_beacon_config(priv, vif))
 519                 return;
 520
 521         cur_conf->beacon_interval = bss_conf->beacon_int;
 522         if (cur_conf->beacon_interval == 0)
 523                 cur_conf->beacon_interval = 100;
 524
 525         cur_conf->dtim_period = bss_conf->dtim_period;
 526         cur_conf->bmiss_timeout =
 527                 ATH_DEFAULT_BMISS_LIMIT * cur_conf->beacon_interval;
 528
 529         switch (vif->type) {
 530         case NL80211_IFTYPE_STATION:
 531                 ath9k_htc_beacon_config_sta(priv, cur_conf);
 532                 avp->beacon_configured = true;
 533                 break;
 534         case NL80211_IFTYPE_ADHOC:
 535                 ath9k_htc_beacon_config_adhoc(priv, cur_conf);
 536                 break;
 537         case NL80211_IFTYPE_AP:
 538                 ath9k_htc_beacon_config_ap(priv, cur_conf);
 539                 break;
 540         default:
 541                 ath_dbg(common, ATH_DBG_CONFIG,
 542                         "Unsupported beaconing mode\n");
 543                 return;
 544         }
 545 }
 546
 547 void ath9k_htc_beacon_reconfig(struct ath9k_htc_priv *priv)
 548 {
 549         struct ath_common *common = ath9k_hw_common(priv->ah);
 550         struct htc_beacon_config *cur_conf = &priv->cur_beacon_conf;
 551
 552         switch (priv->ah->opmode) {
 553         case NL80211_IFTYPE_STATION:
 554                 ath9k_htc_beacon_config_sta(priv, cur_conf);
 555                 break;
 556         case NL80211_IFTYPE_ADHOC:
 557                 ath9k_htc_beacon_config_adhoc(priv, cur_conf);
 558                 break;
 559         case NL80211_IFTYPE_AP:
 560                 ath9k_htc_beacon_config_ap(priv, cur_conf);
 561                 break;
 562         default:
 563                 ath_dbg(common, ATH_DBG_CONFIG,
 564                         "Unsupported beaconing mode\n");
 565                 return;
 566         }
 567 }