drivers/net/wireless/ath/ath9k/htc_drv_init.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 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  18
  19 #include "htc.h"
  20
  21 MODULE_AUTHOR("Atheros Communications");
  22 MODULE_LICENSE("Dual BSD/GPL");
  23 MODULE_DESCRIPTION("Atheros driver 802.11n HTC based wireless devices");
  24
  25 static unsigned int ath9k_debug = ATH_DBG_DEFAULT;
  26 module_param_named(debug, ath9k_debug, uint, 0);
  27 MODULE_PARM_DESC(debug, "Debugging mask");
  28
  29 int htc_modparam_nohwcrypt;
  30 module_param_named(nohwcrypt, htc_modparam_nohwcrypt, int, 0444);
  31 MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption");
  32
  33 static int ath9k_htc_btcoex_enable;
  34 module_param_named(btcoex_enable, ath9k_htc_btcoex_enable, int, 0444);
  35 MODULE_PARM_DESC(btcoex_enable, "Enable wifi-BT coexistence");
  36
  37 static int ath9k_ps_enable;
  38 module_param_named(ps_enable, ath9k_ps_enable, int, 0444);
  39 MODULE_PARM_DESC(ps_enable, "Enable WLAN PowerSave");
  40
  41 int htc_use_dev_fw = 0;
  42 module_param_named(use_dev_fw, htc_use_dev_fw, int, 0444);
  43 MODULE_PARM_DESC(use_dev_fw, "Use development FW version");
  44
  45 #ifdef CONFIG_MAC80211_LEDS
  46 int ath9k_htc_led_blink = 1;
  47 module_param_named(blink, ath9k_htc_led_blink, int, 0444);
  48 MODULE_PARM_DESC(blink, "Enable LED blink on activity");
  49
  50 static const struct ieee80211_tpt_blink ath9k_htc_tpt_blink[] = {
  51         { .throughput = 0 * 1024, .blink_time = 334 },
  52         { .throughput = 1 * 1024, .blink_time = 260 },
  53         { .throughput = 5 * 1024, .blink_time = 220 },
  54         { .throughput = 10 * 1024, .blink_time = 190 },
  55         { .throughput = 20 * 1024, .blink_time = 170 },
  56         { .throughput = 50 * 1024, .blink_time = 150 },
  57         { .throughput = 70 * 1024, .blink_time = 130 },
  58         { .throughput = 100 * 1024, .blink_time = 110 },
  59         { .throughput = 200 * 1024, .blink_time = 80 },
  60         { .throughput = 300 * 1024, .blink_time = 50 },
  61 };
  62 #endif
  63
  64 static void ath9k_htc_op_ps_wakeup(struct ath_common *common)
  65 {
  66         ath9k_htc_ps_wakeup((struct ath9k_htc_priv *) common->priv);
  67 }
  68
  69 static void ath9k_htc_op_ps_restore(struct ath_common *common)
  70 {
  71         ath9k_htc_ps_restore((struct ath9k_htc_priv *) common->priv);
  72 }
  73
  74 static const struct ath_ps_ops ath9k_htc_ps_ops = {
  75         .wakeup = ath9k_htc_op_ps_wakeup,
  76         .restore = ath9k_htc_op_ps_restore,
  77 };
  78
  79 static int ath9k_htc_wait_for_target(struct ath9k_htc_priv *priv)
  80 {
  81         unsigned long time_left;
  82
  83         if (atomic_read(&priv->htc->tgt_ready) > 0) {
  84                 atomic_dec(&priv->htc->tgt_ready);
  85                 return 0;
  86         }
  87
  88         /* Firmware can take up to 50ms to get ready, to be safe use 1 second */
  89         time_left = wait_for_completion_timeout(&priv->htc->target_wait, HZ);
  90         if (!time_left) {
  91                 dev_err(priv->dev, "ath9k_htc: Target is unresponsive\n");
  92                 return -ETIMEDOUT;
  93         }
  94
  95         atomic_dec(&priv->htc->tgt_ready);
  96
  97         return 0;
  98 }
  99
 100 static void ath9k_deinit_priv(struct ath9k_htc_priv *priv)
 101 {
 102         ath9k_hw_deinit(priv->ah);
 103         kfree(priv->ah);
 104         priv->ah = NULL;
 105 }
 106
 107 static void ath9k_deinit_device(struct ath9k_htc_priv *priv)
 108 {
 109         struct ieee80211_hw *hw = priv->hw;
 110
 111         wiphy_rfkill_stop_polling(hw->wiphy);
 112         ath9k_deinit_leds(priv);
 113         ath9k_htc_deinit_debug(priv);
 114         ieee80211_unregister_hw(hw);
 115         ath9k_rx_cleanup(priv);
 116         ath9k_tx_cleanup(priv);
 117         ath9k_deinit_priv(priv);
 118 }
 119
 120 static inline int ath9k_htc_connect_svc(struct ath9k_htc_priv *priv,
 121                                         u16 service_id,
 122                                         void (*tx) (void *,
 123                                                     struct sk_buff *,
 124                                                     enum htc_endpoint_id,
 125                                                     bool txok),
 126                                         enum htc_endpoint_id *ep_id)
 127 {
 128         struct htc_service_connreq req;
 129
 130         memset(&req, 0, sizeof(struct htc_service_connreq));
 131
 132         req.service_id = service_id;
 133         req.ep_callbacks.priv = priv;
 134         req.ep_callbacks.rx = ath9k_htc_rxep;
 135         req.ep_callbacks.tx = tx;
 136
 137         return htc_connect_service(priv->htc, &req, ep_id);
 138 }
 139
 140 static int ath9k_init_htc_services(struct ath9k_htc_priv *priv, u16 devid,
 141                                    u32 drv_info)
 142 {
 143         int ret;
 144
 145         /* WMI CMD*/
 146         ret = ath9k_wmi_connect(priv->htc, priv->wmi, &priv->wmi_cmd_ep);
 147         if (ret)
 148                 goto err;
 149
 150         /* Beacon */
 151         ret = ath9k_htc_connect_svc(priv, WMI_BEACON_SVC, ath9k_htc_beaconep,
 152                                     &priv->beacon_ep);
 153         if (ret)
 154                 goto err;
 155
 156         /* CAB */
 157         ret = ath9k_htc_connect_svc(priv, WMI_CAB_SVC, ath9k_htc_txep,
 158                                     &priv->cab_ep);
 159         if (ret)
 160                 goto err;
 161
 162
 163         /* UAPSD */
 164         ret = ath9k_htc_connect_svc(priv, WMI_UAPSD_SVC, ath9k_htc_txep,
 165                                     &priv->uapsd_ep);
 166         if (ret)
 167                 goto err;
 168
 169         /* MGMT */
 170         ret = ath9k_htc_connect_svc(priv, WMI_MGMT_SVC, ath9k_htc_txep,
 171                                     &priv->mgmt_ep);
 172         if (ret)
 173                 goto err;
 174
 175         /* DATA BE */
 176         ret = ath9k_htc_connect_svc(priv, WMI_DATA_BE_SVC, ath9k_htc_txep,
 177                                     &priv->data_be_ep);
 178         if (ret)
 179                 goto err;
 180
 181         /* DATA BK */
 182         ret = ath9k_htc_connect_svc(priv, WMI_DATA_BK_SVC, ath9k_htc_txep,
 183                                     &priv->data_bk_ep);
 184         if (ret)
 185                 goto err;
 186
 187         /* DATA VI */
 188         ret = ath9k_htc_connect_svc(priv, WMI_DATA_VI_SVC, ath9k_htc_txep,
 189                                     &priv->data_vi_ep);
 190         if (ret)
 191                 goto err;
 192
 193         /* DATA VO */
 194         ret = ath9k_htc_connect_svc(priv, WMI_DATA_VO_SVC, ath9k_htc_txep,
 195                                     &priv->data_vo_ep);
 196         if (ret)
 197                 goto err;
 198
 199         /*
 200          * Setup required credits before initializing HTC.
 201          * This is a bit hacky, but, since queuing is done in
 202          * the HIF layer, shouldn't matter much.
 203          */
 204
 205         if (IS_AR7010_DEVICE(drv_info))
 206                 priv->htc->credits = 45;
 207         else
 208                 priv->htc->credits = 33;
 209
 210         ret = htc_init(priv->htc);
 211         if (ret)
 212                 goto err;
 213
 214         dev_info(priv->dev, "ath9k_htc: HTC initialized with %d credits\n",
 215                  priv->htc->credits);
 216
 217         return 0;
 218
 219 err:
 220         dev_err(priv->dev, "ath9k_htc: Unable to initialize HTC services\n");
 221         return ret;
 222 }
 223
 224 static void ath9k_reg_notifier(struct wiphy *wiphy,
 225                                struct regulatory_request *request)
 226 {
 227         struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
 228         struct ath9k_htc_priv *priv = hw->priv;
 229
 230         ath_reg_notifier_apply(wiphy, request,
 231                                ath9k_hw_regulatory(priv->ah));
 232 }
 233
 234 static unsigned int ath9k_regread(void *hw_priv, u32 reg_offset)
 235 {
 236         struct ath_hw *ah = hw_priv;
 237         struct ath_common *common = ath9k_hw_common(ah);
 238         struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
 239         __be32 val, reg = cpu_to_be32(reg_offset);
 240         int r;
 241
 242         r = ath9k_wmi_cmd(priv->wmi, WMI_REG_READ_CMDID,
 243                           (u8 *) &reg, sizeof(reg),
 244                           (u8 *) &val, sizeof(val),
 245                           100);
 246         if (unlikely(r)) {
 247                 ath_dbg(common, WMI, "REGISTER READ FAILED: (0x%04x, %d)\n",
 248                         reg_offset, r);
 249                 return -EIO;
 250         }
 251
 252         return be32_to_cpu(val);
 253 }
 254
 255 static void ath9k_multi_regread(void *hw_priv, u32 *addr,
 256                                 u32 *val, u16 count)
 257 {
 258         struct ath_hw *ah = hw_priv;
 259         struct ath_common *common = ath9k_hw_common(ah);
 260         struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
 261         __be32 tmpaddr[8];
 262         __be32 tmpval[8];
 263         int i, ret;
 264
 265         for (i = 0; i < count; i++) {
 266                 tmpaddr[i] = cpu_to_be32(addr[i]);
 267         }
 268
 269         ret = ath9k_wmi_cmd(priv->wmi, WMI_REG_READ_CMDID,
 270                            (u8 *)tmpaddr , sizeof(u32) * count,
 271                            (u8 *)tmpval, sizeof(u32) * count,
 272                            100);
 273         if (unlikely(ret)) {
 274                 ath_dbg(common, WMI,
 275                         "Multiple REGISTER READ FAILED (count: %d)\n", count);
 276         }
 277
 278         for (i = 0; i < count; i++) {
 279                 val[i] = be32_to_cpu(tmpval[i]);
 280         }
 281 }
 282
 283 static void ath9k_regwrite_multi(struct ath_common *common)
 284 {
 285         struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
 286         u32 rsp_status;
 287         int r;
 288
 289         r = ath9k_wmi_cmd(priv->wmi, WMI_REG_WRITE_CMDID,
 290                           (u8 *) &priv->wmi->multi_write,
 291                           sizeof(struct register_write) * priv->wmi->multi_write_idx,
 292                           (u8 *) &rsp_status, sizeof(rsp_status),
 293                           100);
 294         if (unlikely(r)) {
 295                 ath_dbg(common, WMI,
 296                         "REGISTER WRITE FAILED, multi len: %d\n",
 297                         priv->wmi->multi_write_idx);
 298         }
 299         priv->wmi->multi_write_idx = 0;
 300 }
 301
 302 static void ath9k_regwrite_single(void *hw_priv, u32 val, u32 reg_offset)
 303 {
 304         struct ath_hw *ah = hw_priv;
 305         struct ath_common *common = ath9k_hw_common(ah);
 306         struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
 307         const __be32 buf[2] = {
 308                 cpu_to_be32(reg_offset),
 309                 cpu_to_be32(val),
 310         };
 311         int r;
 312
 313         r = ath9k_wmi_cmd(priv->wmi, WMI_REG_WRITE_CMDID,
 314                           (u8 *) &buf, sizeof(buf),
 315                           (u8 *) &val, sizeof(val),
 316                           100);
 317         if (unlikely(r)) {
 318                 ath_dbg(common, WMI, "REGISTER WRITE FAILED:(0x%04x, %d)\n",
 319                         reg_offset, r);
 320         }
 321 }
 322
 323 static void ath9k_regwrite_buffer(void *hw_priv, u32 val, u32 reg_offset)
 324 {
 325         struct ath_hw *ah = hw_priv;
 326         struct ath_common *common = ath9k_hw_common(ah);
 327         struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
 328
 329         mutex_lock(&priv->wmi->multi_write_mutex);
 330
 331         /* Store the register/value */
 332         priv->wmi->multi_write[priv->wmi->multi_write_idx].reg =
 333                 cpu_to_be32(reg_offset);
 334         priv->wmi->multi_write[priv->wmi->multi_write_idx].val =
 335                 cpu_to_be32(val);
 336
 337         priv->wmi->multi_write_idx++;
 338
 339         /* If the buffer is full, send it out. */
 340         if (priv->wmi->multi_write_idx == MAX_CMD_NUMBER)
 341                 ath9k_regwrite_multi(common);
 342
 343         mutex_unlock(&priv->wmi->multi_write_mutex);
 344 }
 345
 346 static void ath9k_regwrite(void *hw_priv, u32 val, u32 reg_offset)
 347 {
 348         struct ath_hw *ah = hw_priv;
 349         struct ath_common *common = ath9k_hw_common(ah);
 350         struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
 351
 352         if (atomic_read(&priv->wmi->mwrite_cnt))
 353                 ath9k_regwrite_buffer(hw_priv, val, reg_offset);
 354         else
 355                 ath9k_regwrite_single(hw_priv, val, reg_offset);
 356 }
 357
 358 static void ath9k_enable_regwrite_buffer(void *hw_priv)
 359 {
 360         struct ath_hw *ah = hw_priv;
 361         struct ath_common *common = ath9k_hw_common(ah);
 362         struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
 363
 364         atomic_inc(&priv->wmi->mwrite_cnt);
 365 }
 366
 367 static void ath9k_regwrite_flush(void *hw_priv)
 368 {
 369         struct ath_hw *ah = hw_priv;
 370         struct ath_common *common = ath9k_hw_common(ah);
 371         struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
 372
 373         atomic_dec(&priv->wmi->mwrite_cnt);
 374
 375         mutex_lock(&priv->wmi->multi_write_mutex);
 376
 377         if (priv->wmi->multi_write_idx)
 378                 ath9k_regwrite_multi(common);
 379
 380         mutex_unlock(&priv->wmi->multi_write_mutex);
 381 }
 382
 383 static void ath9k_reg_rmw_buffer(void *hw_priv,
 384                                  u32 reg_offset, u32 set, u32 clr)
 385 {
 386         struct ath_hw *ah = hw_priv;
 387         struct ath_common *common = ath9k_hw_common(ah);
 388         struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
 389         u32 rsp_status;
 390         int r;
 391
 392         mutex_lock(&priv->wmi->multi_rmw_mutex);
 393
 394         /* Store the register/value */
 395         priv->wmi->multi_rmw[priv->wmi->multi_rmw_idx].reg =
 396                 cpu_to_be32(reg_offset);
 397         priv->wmi->multi_rmw[priv->wmi->multi_rmw_idx].set =
 398                 cpu_to_be32(set);
 399         priv->wmi->multi_rmw[priv->wmi->multi_rmw_idx].clr =
 400                 cpu_to_be32(clr);
 401
 402         priv->wmi->multi_rmw_idx++;
 403
 404         /* If the buffer is full, send it out. */
 405         if (priv->wmi->multi_rmw_idx == MAX_RMW_CMD_NUMBER) {
 406                 r = ath9k_wmi_cmd(priv->wmi, WMI_REG_RMW_CMDID,
 407                           (u8 *) &priv->wmi->multi_rmw,
 408                           sizeof(struct register_write) * priv->wmi->multi_rmw_idx,
 409                           (u8 *) &rsp_status, sizeof(rsp_status),
 410                           100);
 411                 if (unlikely(r)) {
 412                         ath_dbg(common, WMI,
 413                                 "REGISTER RMW FAILED, multi len: %d\n",
 414                                 priv->wmi->multi_rmw_idx);
 415                 }
 416                 priv->wmi->multi_rmw_idx = 0;
 417         }
 418
 419         mutex_unlock(&priv->wmi->multi_rmw_mutex);
 420 }
 421
 422 static void ath9k_reg_rmw_flush(void *hw_priv)
 423 {
 424         struct ath_hw *ah = hw_priv;
 425         struct ath_common *common = ath9k_hw_common(ah);
 426         struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
 427         u32 rsp_status;
 428         int r;
 429
 430         if (test_bit(HTC_FWFLAG_NO_RMW, &priv->fw_flags))
 431                 return;
 432
 433         atomic_dec(&priv->wmi->m_rmw_cnt);
 434
 435         mutex_lock(&priv->wmi->multi_rmw_mutex);
 436
 437         if (priv->wmi->multi_rmw_idx) {
 438                 r = ath9k_wmi_cmd(priv->wmi, WMI_REG_RMW_CMDID,
 439                           (u8 *) &priv->wmi->multi_rmw,
 440                           sizeof(struct register_rmw) * priv->wmi->multi_rmw_idx,
 441                           (u8 *) &rsp_status, sizeof(rsp_status),
 442                           100);
 443                 if (unlikely(r)) {
 444                         ath_dbg(common, WMI,
 445                                 "REGISTER RMW FAILED, multi len: %d\n",
 446                                 priv->wmi->multi_rmw_idx);
 447                 }
 448                 priv->wmi->multi_rmw_idx = 0;
 449         }
 450
 451         mutex_unlock(&priv->wmi->multi_rmw_mutex);
 452 }
 453
 454 static void ath9k_enable_rmw_buffer(void *hw_priv)
 455 {
 456         struct ath_hw *ah = hw_priv;
 457         struct ath_common *common = ath9k_hw_common(ah);
 458         struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
 459
 460         if (test_bit(HTC_FWFLAG_NO_RMW, &priv->fw_flags))
 461                 return;
 462
 463         atomic_inc(&priv->wmi->m_rmw_cnt);
 464 }
 465
 466 static void ath9k_reg_rmw_single(void *hw_priv,
 467                                  u32 reg_offset, u32 set, u32 clr)
 468 {
 469         struct ath_hw *ah = hw_priv;
 470         struct ath_common *common = ath9k_hw_common(ah);
 471         struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
 472         struct register_rmw buf, buf_ret;
 473         int ret;
 474
 475         buf.reg = cpu_to_be32(reg_offset);
 476         buf.set = cpu_to_be32(set);
 477         buf.clr = cpu_to_be32(clr);
 478
 479         ret = ath9k_wmi_cmd(priv->wmi, WMI_REG_RMW_CMDID,
 480                           (u8 *) &buf, sizeof(buf),
 481                           (u8 *) &buf_ret, sizeof(buf_ret),
 482                           100);
 483         if (unlikely(ret)) {
 484                 ath_dbg(common, WMI, "REGISTER RMW FAILED:(0x%04x, %d)\n",
 485                         reg_offset, ret);
 486         }
 487 }
 488
 489 static u32 ath9k_reg_rmw(void *hw_priv, u32 reg_offset, u32 set, u32 clr)
 490 {
 491         struct ath_hw *ah = hw_priv;
 492         struct ath_common *common = ath9k_hw_common(ah);
 493         struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
 494
 495         if (test_bit(HTC_FWFLAG_NO_RMW, &priv->fw_flags)) {
 496                 u32 val;
 497
 498                 val = REG_READ(ah, reg_offset);
 499                 val &= ~clr;
 500                 val |= set;
 501                 REG_WRITE(ah, reg_offset, val);
 502
 503                 return 0;
 504         }
 505
 506         if (atomic_read(&priv->wmi->m_rmw_cnt))
 507                 ath9k_reg_rmw_buffer(hw_priv, reg_offset, set, clr);
 508         else
 509                 ath9k_reg_rmw_single(hw_priv, reg_offset, set, clr);
 510
 511         return 0;
 512 }
 513
 514 static void ath_usb_read_cachesize(struct ath_common *common, int *csz)
 515 {
 516         *csz = L1_CACHE_BYTES >> 2;
 517 }
 518
 519 static bool ath_usb_eeprom_read(struct ath_common *common, u32 off, u16 *data)
 520 {
 521         struct ath_hw *ah = (struct ath_hw *) common->ah;
 522
 523         (void)REG_READ(ah, AR5416_EEPROM_OFFSET + (off << AR5416_EEPROM_S));
 524
 525         if (!ath9k_hw_wait(ah,
 526                            AR_EEPROM_STATUS_DATA,
 527                            AR_EEPROM_STATUS_DATA_BUSY |
 528                            AR_EEPROM_STATUS_DATA_PROT_ACCESS, 0,
 529                            AH_WAIT_TIMEOUT))
 530                 return false;
 531
 532         *data = MS(REG_READ(ah, AR_EEPROM_STATUS_DATA),
 533                    AR_EEPROM_STATUS_DATA_VAL);
 534
 535         return true;
 536 }
 537
 538 static const struct ath_bus_ops ath9k_usb_bus_ops = {
 539         .ath_bus_type = ATH_USB,
 540         .read_cachesize = ath_usb_read_cachesize,
 541         .eeprom_read = ath_usb_eeprom_read,
 542 };
 543
 544 static int ath9k_init_queues(struct ath9k_htc_priv *priv)
 545 {
 546         struct ath_common *common = ath9k_hw_common(priv->ah);
 547         int i;
 548
 549         for (i = 0; i < ARRAY_SIZE(priv->hwq_map); i++)
 550                 priv->hwq_map[i] = -1;
 551
 552         priv->beacon.beaconq = ath9k_hw_beaconq_setup(priv->ah);
 553         if (priv->beacon.beaconq == -1) {
 554                 ath_err(common, "Unable to setup BEACON xmit queue\n");
 555                 goto err;
 556         }
 557
 558         priv->cabq = ath9k_htc_cabq_setup(priv);
 559         if (priv->cabq == -1) {
 560                 ath_err(common, "Unable to setup CAB xmit queue\n");
 561                 goto err;
 562         }
 563
 564         if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_BE)) {
 565                 ath_err(common, "Unable to setup xmit queue for BE traffic\n");
 566                 goto err;
 567         }
 568
 569         if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_BK)) {
 570                 ath_err(common, "Unable to setup xmit queue for BK traffic\n");
 571                 goto err;
 572         }
 573         if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_VI)) {
 574                 ath_err(common, "Unable to setup xmit queue for VI traffic\n");
 575                 goto err;
 576         }
 577         if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_VO)) {
 578                 ath_err(common, "Unable to setup xmit queue for VO traffic\n");
 579                 goto err;
 580         }
 581
 582         return 0;
 583
 584 err:
 585         return -EINVAL;
 586 }
 587
 588 static void ath9k_init_misc(struct ath9k_htc_priv *priv)
 589 {
 590         struct ath_common *common = ath9k_hw_common(priv->ah);
 591
 592         eth_broadcast_addr(common->bssidmask);
 593
 594         common->last_rssi = ATH_RSSI_DUMMY_MARKER;
 595         priv->ah->opmode = NL80211_IFTYPE_STATION;
 596
 597         priv->spec_priv.ah = priv->ah;
 598         priv->spec_priv.spec_config.enabled = 0;
 599         priv->spec_priv.spec_config.short_repeat = true;
 600         priv->spec_priv.spec_config.count = 8;
 601         priv->spec_priv.spec_config.endless = false;
 602         priv->spec_priv.spec_config.period = 0x12;
 603         priv->spec_priv.spec_config.fft_period = 0x02;
 604 }
 605
 606 static int ath9k_init_priv(struct ath9k_htc_priv *priv,
 607                            u16 devid, char *product,
 608                            u32 drv_info)
 609 {
 610         struct ath_hw *ah = NULL;
 611         struct ath_common *common;
 612         int i, ret = 0, csz = 0;
 613
 614         ah = kzalloc(sizeof(struct ath_hw), GFP_KERNEL);
 615         if (!ah)
 616                 return -ENOMEM;
 617
 618         ah->dev = priv->dev;
 619         ah->hw = priv->hw;
 620         ah->hw_version.devid = devid;
 621         ah->hw_version.usbdev = drv_info;
 622         ah->ah_flags |= AH_USE_EEPROM;
 623         ah->reg_ops.read = ath9k_regread;
 624         ah->reg_ops.multi_read = ath9k_multi_regread;
 625         ah->reg_ops.write = ath9k_regwrite;
 626         ah->reg_ops.enable_write_buffer = ath9k_enable_regwrite_buffer;
 627         ah->reg_ops.write_flush = ath9k_regwrite_flush;
 628         ah->reg_ops.enable_rmw_buffer = ath9k_enable_rmw_buffer;
 629         ah->reg_ops.rmw_flush = ath9k_reg_rmw_flush;
 630         ah->reg_ops.rmw = ath9k_reg_rmw;
 631         priv->ah = ah;
 632
 633         common = ath9k_hw_common(ah);
 634         common->ops = &ah->reg_ops;
 635         common->ps_ops = &ath9k_htc_ps_ops;
 636         common->bus_ops = &ath9k_usb_bus_ops;
 637         common->ah = ah;
 638         common->hw = priv->hw;
 639         common->priv = priv;
 640         common->debug_mask = ath9k_debug;
 641         common->btcoex_enabled = ath9k_htc_btcoex_enable == 1;
 642         set_bit(ATH_OP_INVALID, &common->op_flags);
 643
 644         spin_lock_init(&priv->beacon_lock);
 645         spin_lock_init(&priv->tx.tx_lock);
 646         mutex_init(&priv->mutex);
 647         mutex_init(&priv->htc_pm_lock);
 648         tasklet_init(&priv->rx_tasklet, ath9k_rx_tasklet,
 649                      (unsigned long)priv);
 650         tasklet_init(&priv->tx_failed_tasklet, ath9k_tx_failed_tasklet,
 651                      (unsigned long)priv);
 652         INIT_DELAYED_WORK(&priv->ani_work, ath9k_htc_ani_work);
 653         INIT_WORK(&priv->ps_work, ath9k_ps_work);
 654         INIT_WORK(&priv->fatal_work, ath9k_fatal_work);
 655         timer_setup(&priv->tx.cleanup_timer, ath9k_htc_tx_cleanup_timer, 0);
 656
 657         /*
 658          * Cache line size is used to size and align various
 659          * structures used to communicate with the hardware.
 660          */
 661         ath_read_cachesize(common, &csz);
 662         common->cachelsz = csz << 2; /* convert to bytes */
 663
 664         ret = ath9k_hw_init(ah);
 665         if (ret) {
 666                 ath_err(common,
 667                         "Unable to initialize hardware; initialization status: %d\n",
 668                         ret);
 669                 goto err_hw;
 670         }
 671
 672         ret = ath9k_init_queues(priv);
 673         if (ret)
 674                 goto err_queues;
 675
 676         for (i = 0; i < ATH9K_HTC_MAX_BCN_VIF; i++)
 677                 priv->beacon.bslot[i] = NULL;
 678         priv->beacon.slottime = 9;
 679
 680         ath9k_cmn_init_channels_rates(common);
 681         ath9k_cmn_init_crypto(ah);
 682         ath9k_init_misc(priv);
 683         ath9k_htc_init_btcoex(priv, product);
 684
 685         return 0;
 686
 687 err_queues:
 688         ath9k_hw_deinit(ah);
 689 err_hw:
 690
 691         kfree(ah);
 692         priv->ah = NULL;
 693
 694         return ret;
 695 }
 696
 697 static const struct ieee80211_iface_limit if_limits[] = {
 698         { .max = 2,     .types = BIT(NL80211_IFTYPE_STATION) |
 699                                  BIT(NL80211_IFTYPE_P2P_CLIENT) },
 700         { .max = 2,     .types = BIT(NL80211_IFTYPE_AP) |
 701 #ifdef CONFIG_MAC80211_MESH
 702                                  BIT(NL80211_IFTYPE_MESH_POINT) |
 703 #endif
 704                                  BIT(NL80211_IFTYPE_P2P_GO) },
 705 };
 706
 707 static const struct ieee80211_iface_combination if_comb = {
 708         .limits = if_limits,
 709         .n_limits = ARRAY_SIZE(if_limits),
 710         .max_interfaces = 2,
 711         .num_different_channels = 1,
 712 };
 713
 714 static void ath9k_set_hw_capab(struct ath9k_htc_priv *priv,
 715                                struct ieee80211_hw *hw)
 716 {
 717         struct ath_hw *ah = priv->ah;
 718         struct ath_common *common = ath9k_hw_common(priv->ah);
 719         struct base_eep_header *pBase;
 720
 721         ieee80211_hw_set(hw, HOST_BROADCAST_PS_BUFFERING);
 722         ieee80211_hw_set(hw, MFP_CAPABLE);
 723         ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
 724         ieee80211_hw_set(hw, PS_NULLFUNC_STACK);
 725         ieee80211_hw_set(hw, RX_INCLUDES_FCS);
 726         ieee80211_hw_set(hw, HAS_RATE_CONTROL);
 727         ieee80211_hw_set(hw, SPECTRUM_MGMT);
 728         ieee80211_hw_set(hw, SIGNAL_DBM);
 729         ieee80211_hw_set(hw, AMPDU_AGGREGATION);
 730         ieee80211_hw_set(hw, DOESNT_SUPPORT_QOS_NDP);
 731
 732         if (ath9k_ps_enable)
 733                 ieee80211_hw_set(hw, SUPPORTS_PS);
 734
 735         hw->wiphy->interface_modes =
 736                 BIT(NL80211_IFTYPE_STATION) |
 737                 BIT(NL80211_IFTYPE_ADHOC) |
 738                 BIT(NL80211_IFTYPE_AP) |
 739                 BIT(NL80211_IFTYPE_P2P_GO) |
 740                 BIT(NL80211_IFTYPE_P2P_CLIENT) |
 741                 BIT(NL80211_IFTYPE_MESH_POINT) |
 742                 BIT(NL80211_IFTYPE_OCB);
 743
 744         hw->wiphy->iface_combinations = &if_comb;
 745         hw->wiphy->n_iface_combinations = 1;
 746
 747         hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
 748
 749         hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN |
 750                             WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
 751                             WIPHY_FLAG_HAS_CHANNEL_SWITCH;
 752
 753         hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
 754
 755         hw->queues = 4;
 756         hw->max_listen_interval = 1;
 757
 758         hw->vif_data_size = sizeof(struct ath9k_htc_vif);
 759         hw->sta_data_size = sizeof(struct ath9k_htc_sta);
 760
 761         /* tx_frame_hdr is larger than tx_mgmt_hdr anyway */
 762         hw->extra_tx_headroom = sizeof(struct tx_frame_hdr) +
 763                 sizeof(struct htc_frame_hdr) + 4;
 764
 765         if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_2GHZ)
 766                 hw->wiphy->bands[NL80211_BAND_2GHZ] =
 767                         &common->sbands[NL80211_BAND_2GHZ];
 768         if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_5GHZ)
 769                 hw->wiphy->bands[NL80211_BAND_5GHZ] =
 770                         &common->sbands[NL80211_BAND_5GHZ];
 771
 772         ath9k_cmn_reload_chainmask(ah);
 773
 774         pBase = ath9k_htc_get_eeprom_base(priv);
 775         if (pBase) {
 776                 hw->wiphy->available_antennas_rx = pBase->rxMask;
 777                 hw->wiphy->available_antennas_tx = pBase->txMask;
 778         }
 779
 780         SET_IEEE80211_PERM_ADDR(hw, common->macaddr);
 781
 782         wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_CQM_RSSI_LIST);
 783 }
 784
 785 static int ath9k_init_firmware_version(struct ath9k_htc_priv *priv)
 786 {
 787         struct ieee80211_hw *hw = priv->hw;
 788         struct wmi_fw_version cmd_rsp;
 789         int ret;
 790
 791         memset(&cmd_rsp, 0, sizeof(cmd_rsp));
 792
 793         WMI_CMD(WMI_GET_FW_VERSION);
 794         if (ret)
 795                 return -EINVAL;
 796
 797         priv->fw_version_major = be16_to_cpu(cmd_rsp.major);
 798         priv->fw_version_minor = be16_to_cpu(cmd_rsp.minor);
 799
 800         snprintf(hw->wiphy->fw_version, sizeof(hw->wiphy->fw_version), "%d.%d",
 801                  priv->fw_version_major,
 802                  priv->fw_version_minor);
 803
 804         dev_info(priv->dev, "ath9k_htc: FW Version: %d.%d\n",
 805                  priv->fw_version_major,
 806                  priv->fw_version_minor);
 807
 808         /*
 809          * Check if the available FW matches the driver's
 810          * required version.
 811          */
 812         if (priv->fw_version_major != MAJOR_VERSION_REQ ||
 813             priv->fw_version_minor < MINOR_VERSION_REQ) {
 814                 dev_err(priv->dev, "ath9k_htc: Please upgrade to FW version %d.%d\n",
 815                         MAJOR_VERSION_REQ, MINOR_VERSION_REQ);
 816                 return -EINVAL;
 817         }
 818
 819         if (priv->fw_version_major == 1 && priv->fw_version_minor < 4)
 820                 set_bit(HTC_FWFLAG_NO_RMW, &priv->fw_flags);
 821
 822         dev_info(priv->dev, "FW RMW support: %s\n",
 823                 test_bit(HTC_FWFLAG_NO_RMW, &priv->fw_flags) ? "Off" : "On");
 824
 825         return 0;
 826 }
 827
 828 static int ath9k_init_device(struct ath9k_htc_priv *priv,
 829                              u16 devid, char *product, u32 drv_info)
 830 {
 831         struct ieee80211_hw *hw = priv->hw;
 832         struct ath_common *common;
 833         struct ath_hw *ah;
 834         int error = 0;
 835         struct ath_regulatory *reg;
 836         char hw_name[64];
 837
 838         /* Bring up device */
 839         error = ath9k_init_priv(priv, devid, product, drv_info);
 840         if (error != 0)
 841                 goto err_init;
 842
 843         ah = priv->ah;
 844         common = ath9k_hw_common(ah);
 845         ath9k_set_hw_capab(priv, hw);
 846
 847         error = ath9k_init_firmware_version(priv);
 848         if (error != 0)
 849                 goto err_fw;
 850
 851         /* Initialize regulatory */
 852         error = ath_regd_init(&common->regulatory, priv->hw->wiphy,
 853                               ath9k_reg_notifier);
 854         if (error)
 855                 goto err_regd;
 856
 857         reg = &common->regulatory;
 858
 859         /* Setup TX */
 860         error = ath9k_tx_init(priv);
 861         if (error != 0)
 862                 goto err_tx;
 863
 864         /* Setup RX */
 865         error = ath9k_rx_init(priv);
 866         if (error != 0)
 867                 goto err_rx;
 868
 869         ath9k_hw_disable(priv->ah);
 870 #ifdef CONFIG_MAC80211_LEDS
 871         /* must be initialized before ieee80211_register_hw */
 872         priv->led_cdev.default_trigger = ieee80211_create_tpt_led_trigger(priv->hw,
 873                 IEEE80211_TPT_LEDTRIG_FL_RADIO, ath9k_htc_tpt_blink,
 874                 ARRAY_SIZE(ath9k_htc_tpt_blink));
 875 #endif
 876
 877         /* Register with mac80211 */
 878         error = ieee80211_register_hw(hw);
 879         if (error)
 880                 goto err_register;
 881
 882         /* Handle world regulatory */
 883         if (!ath_is_world_regd(reg)) {
 884                 error = regulatory_hint(hw->wiphy, reg->alpha2);
 885                 if (error)
 886                         goto err_world;
 887         }
 888
 889         error = ath9k_htc_init_debug(priv->ah);
 890         if (error) {
 891                 ath_err(common, "Unable to create debugfs files\n");
 892                 goto err_world;
 893         }
 894
 895         ath_dbg(common, CONFIG,
 896                 "WMI:%d, BCN:%d, CAB:%d, UAPSD:%d, MGMT:%d, BE:%d, BK:%d, VI:%d, VO:%d\n",
 897                 priv->wmi_cmd_ep,
 898                 priv->beacon_ep,
 899                 priv->cab_ep,
 900                 priv->uapsd_ep,
 901                 priv->mgmt_ep,
 902                 priv->data_be_ep,
 903                 priv->data_bk_ep,
 904                 priv->data_vi_ep,
 905                 priv->data_vo_ep);
 906
 907         ath9k_hw_name(priv->ah, hw_name, sizeof(hw_name));
 908         wiphy_info(hw->wiphy, "%s\n", hw_name);
 909
 910         ath9k_init_leds(priv);
 911         ath9k_start_rfkill_poll(priv);
 912
 913         return 0;
 914
 915 err_world:
 916         ieee80211_unregister_hw(hw);
 917 err_register:
 918         ath9k_rx_cleanup(priv);
 919 err_rx:
 920         ath9k_tx_cleanup(priv);
 921 err_tx:
 922         /* Nothing */
 923 err_regd:
 924         /* Nothing */
 925 err_fw:
 926         ath9k_deinit_priv(priv);
 927 err_init:
 928         return error;
 929 }
 930
 931 int ath9k_htc_probe_device(struct htc_target *htc_handle, struct device *dev,
 932                            u16 devid, char *product, u32 drv_info)
 933 {
 934         struct hif_device_usb *hif_dev;
 935         struct ath9k_htc_priv *priv;
 936         struct ieee80211_hw *hw;
 937         int ret;
 938
 939         hw = ieee80211_alloc_hw(sizeof(struct ath9k_htc_priv), &ath9k_htc_ops);
 940         if (!hw)
 941                 return -ENOMEM;
 942
 943         priv = hw->priv;
 944         priv->hw = hw;
 945         priv->htc = htc_handle;
 946         priv->dev = dev;
 947         htc_handle->drv_priv = priv;
 948         SET_IEEE80211_DEV(hw, priv->dev);
 949
 950         ret = ath9k_htc_wait_for_target(priv);
 951         if (ret)
 952                 goto err_free;
 953
 954         priv->wmi = ath9k_init_wmi(priv);
 955         if (!priv->wmi) {
 956                 ret = -EINVAL;
 957                 goto err_free;
 958         }
 959
 960         ret = ath9k_init_htc_services(priv, devid, drv_info);
 961         if (ret)
 962                 goto err_init;
 963
 964         ret = ath9k_init_device(priv, devid, product, drv_info);
 965         if (ret)
 966                 goto err_init;
 967
 968         return 0;
 969
 970 err_init:
 971         ath9k_stop_wmi(priv);
 972         hif_dev = (struct hif_device_usb *)htc_handle->hif_dev;
 973         ath9k_hif_usb_dealloc_urbs(hif_dev);
 974         ath9k_destoy_wmi(priv);
 975 err_free:
 976         ieee80211_free_hw(hw);
 977         return ret;
 978 }
 979
 980 void ath9k_htc_disconnect_device(struct htc_target *htc_handle, bool hotunplug)
 981 {
 982         if (htc_handle->drv_priv) {
 983
 984                 /* Check if the device has been yanked out. */
 985                 if (hotunplug)
 986                         htc_handle->drv_priv->ah->ah_flags |= AH_UNPLUGGED;
 987
 988                 ath9k_deinit_device(htc_handle->drv_priv);
 989                 ath9k_stop_wmi(htc_handle->drv_priv);
 990                 ieee80211_free_hw(htc_handle->drv_priv->hw);
 991         }
 992 }
 993
 994 #ifdef CONFIG_PM
 995
 996 void ath9k_htc_suspend(struct htc_target *htc_handle)
 997 {
 998         ath9k_htc_setpower(htc_handle->drv_priv, ATH9K_PM_FULL_SLEEP);
 999 }
1000
1001 int ath9k_htc_resume(struct htc_target *htc_handle)
1002 {
1003         struct ath9k_htc_priv *priv = htc_handle->drv_priv;
1004         int ret;
1005
1006         ret = ath9k_htc_wait_for_target(priv);
1007         if (ret)
1008                 return ret;
1009
1010         ret = ath9k_init_htc_services(priv, priv->ah->hw_version.devid,
1011                                       priv->ah->hw_version.usbdev);
1012         ath9k_configure_leds(priv);
1013
1014         return ret;
1015 }
1016 #endif
1017
1018 static int __init ath9k_htc_init(void)
1019 {
1020         if (ath9k_hif_usb_init() < 0) {
1021                 pr_err("No USB devices found, driver not installed\n");
1022                 return -ENODEV;
1023         }
1024
1025         return 0;
1026 }
1027 module_init(ath9k_htc_init);
1028
1029 static void __exit ath9k_htc_exit(void)
1030 {
1031         ath9k_hif_usb_exit();
1032         pr_info("Driver unloaded\n");
1033 }
1034 module_exit(ath9k_htc_exit);