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 u32 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         u32 val = 0;
 475
 476         buf.reg = cpu_to_be32(reg_offset);
 477         buf.set = cpu_to_be32(set);
 478         buf.clr = cpu_to_be32(clr);
 479
 480         ret = ath9k_wmi_cmd(priv->wmi, WMI_REG_RMW_CMDID,
 481                           (u8 *) &buf, sizeof(buf),
 482                           (u8 *) &buf_ret, sizeof(buf_ret),
 483                           100);
 484         if (unlikely(ret)) {
 485                 ath_dbg(common, WMI, "REGISTER RMW FAILED:(0x%04x, %d)\n",
 486                         reg_offset, ret);
 487         }
 488         return val;
 489 }
 490
 491 static u32 ath9k_reg_rmw(void *hw_priv, u32 reg_offset, u32 set, u32 clr)
 492 {
 493         struct ath_hw *ah = hw_priv;
 494         struct ath_common *common = ath9k_hw_common(ah);
 495         struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
 496
 497         if (test_bit(HTC_FWFLAG_NO_RMW, &priv->fw_flags)) {
 498                 u32 val;
 499
 500                 val = REG_READ(ah, reg_offset);
 501                 val &= ~clr;
 502                 val |= set;
 503                 REG_WRITE(ah, reg_offset, val);
 504
 505                 return 0;
 506         }
 507
 508         if (atomic_read(&priv->wmi->m_rmw_cnt))
 509                 ath9k_reg_rmw_buffer(hw_priv, reg_offset, set, clr);
 510         else
 511                 ath9k_reg_rmw_single(hw_priv, reg_offset, set, clr);
 512
 513         return 0;
 514 }
 515
 516 static void ath_usb_read_cachesize(struct ath_common *common, int *csz)
 517 {
 518         *csz = L1_CACHE_BYTES >> 2;
 519 }
 520
 521 static bool ath_usb_eeprom_read(struct ath_common *common, u32 off, u16 *data)
 522 {
 523         struct ath_hw *ah = (struct ath_hw *) common->ah;
 524
 525         (void)REG_READ(ah, AR5416_EEPROM_OFFSET + (off << AR5416_EEPROM_S));
 526
 527         if (!ath9k_hw_wait(ah,
 528                            AR_EEPROM_STATUS_DATA,
 529                            AR_EEPROM_STATUS_DATA_BUSY |
 530                            AR_EEPROM_STATUS_DATA_PROT_ACCESS, 0,
 531                            AH_WAIT_TIMEOUT))
 532                 return false;
 533
 534         *data = MS(REG_READ(ah, AR_EEPROM_STATUS_DATA),
 535                    AR_EEPROM_STATUS_DATA_VAL);
 536
 537         return true;
 538 }
 539
 540 static const struct ath_bus_ops ath9k_usb_bus_ops = {
 541         .ath_bus_type = ATH_USB,
 542         .read_cachesize = ath_usb_read_cachesize,
 543         .eeprom_read = ath_usb_eeprom_read,
 544 };
 545
 546 static int ath9k_init_queues(struct ath9k_htc_priv *priv)
 547 {
 548         struct ath_common *common = ath9k_hw_common(priv->ah);
 549         int i;
 550
 551         for (i = 0; i < ARRAY_SIZE(priv->hwq_map); i++)
 552                 priv->hwq_map[i] = -1;
 553
 554         priv->beacon.beaconq = ath9k_hw_beaconq_setup(priv->ah);
 555         if (priv->beacon.beaconq == -1) {
 556                 ath_err(common, "Unable to setup BEACON xmit queue\n");
 557                 goto err;
 558         }
 559
 560         priv->cabq = ath9k_htc_cabq_setup(priv);
 561         if (priv->cabq == -1) {
 562                 ath_err(common, "Unable to setup CAB xmit queue\n");
 563                 goto err;
 564         }
 565
 566         if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_BE)) {
 567                 ath_err(common, "Unable to setup xmit queue for BE traffic\n");
 568                 goto err;
 569         }
 570
 571         if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_BK)) {
 572                 ath_err(common, "Unable to setup xmit queue for BK traffic\n");
 573                 goto err;
 574         }
 575         if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_VI)) {
 576                 ath_err(common, "Unable to setup xmit queue for VI traffic\n");
 577                 goto err;
 578         }
 579         if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_VO)) {
 580                 ath_err(common, "Unable to setup xmit queue for VO traffic\n");
 581                 goto err;
 582         }
 583
 584         return 0;
 585
 586 err:
 587         return -EINVAL;
 588 }
 589
 590 static void ath9k_init_misc(struct ath9k_htc_priv *priv)
 591 {
 592         struct ath_common *common = ath9k_hw_common(priv->ah);
 593
 594         memcpy(common->bssidmask, ath_bcast_mac, ETH_ALEN);
 595
 596         common->last_rssi = ATH_RSSI_DUMMY_MARKER;
 597         priv->ah->opmode = NL80211_IFTYPE_STATION;
 598
 599         priv->spec_priv.ah = priv->ah;
 600         priv->spec_priv.spec_config.enabled = 0;
 601         priv->spec_priv.spec_config.short_repeat = true;
 602         priv->spec_priv.spec_config.count = 8;
 603         priv->spec_priv.spec_config.endless = false;
 604         priv->spec_priv.spec_config.period = 0x12;
 605         priv->spec_priv.spec_config.fft_period = 0x02;
 606 }
 607
 608 static int ath9k_init_priv(struct ath9k_htc_priv *priv,
 609                            u16 devid, char *product,
 610                            u32 drv_info)
 611 {
 612         struct ath_hw *ah = NULL;
 613         struct ath_common *common;
 614         int i, ret = 0, csz = 0;
 615
 616         ah = kzalloc(sizeof(struct ath_hw), GFP_KERNEL);
 617         if (!ah)
 618                 return -ENOMEM;
 619
 620         ah->dev = priv->dev;
 621         ah->hw = priv->hw;
 622         ah->hw_version.devid = devid;
 623         ah->hw_version.usbdev = drv_info;
 624         ah->ah_flags |= AH_USE_EEPROM;
 625         ah->reg_ops.read = ath9k_regread;
 626         ah->reg_ops.multi_read = ath9k_multi_regread;
 627         ah->reg_ops.write = ath9k_regwrite;
 628         ah->reg_ops.enable_write_buffer = ath9k_enable_regwrite_buffer;
 629         ah->reg_ops.write_flush = ath9k_regwrite_flush;
 630         ah->reg_ops.enable_rmw_buffer = ath9k_enable_rmw_buffer;
 631         ah->reg_ops.rmw_flush = ath9k_reg_rmw_flush;
 632         ah->reg_ops.rmw = ath9k_reg_rmw;
 633         priv->ah = ah;
 634
 635         common = ath9k_hw_common(ah);
 636         common->ops = &ah->reg_ops;
 637         common->ps_ops = &ath9k_htc_ps_ops;
 638         common->bus_ops = &ath9k_usb_bus_ops;
 639         common->ah = ah;
 640         common->hw = priv->hw;
 641         common->priv = priv;
 642         common->debug_mask = ath9k_debug;
 643         common->btcoex_enabled = ath9k_htc_btcoex_enable == 1;
 644         set_bit(ATH_OP_INVALID, &common->op_flags);
 645
 646         spin_lock_init(&priv->beacon_lock);
 647         spin_lock_init(&priv->tx.tx_lock);
 648         mutex_init(&priv->mutex);
 649         mutex_init(&priv->htc_pm_lock);
 650         tasklet_init(&priv->rx_tasklet, ath9k_rx_tasklet,
 651                      (unsigned long)priv);
 652         tasklet_init(&priv->tx_failed_tasklet, ath9k_tx_failed_tasklet,
 653                      (unsigned long)priv);
 654         INIT_DELAYED_WORK(&priv->ani_work, ath9k_htc_ani_work);
 655         INIT_WORK(&priv->ps_work, ath9k_ps_work);
 656         INIT_WORK(&priv->fatal_work, ath9k_fatal_work);
 657         timer_setup(&priv->tx.cleanup_timer, ath9k_htc_tx_cleanup_timer, 0);
 658
 659         /*
 660          * Cache line size is used to size and align various
 661          * structures used to communicate with the hardware.
 662          */
 663         ath_read_cachesize(common, &csz);
 664         common->cachelsz = csz << 2; /* convert to bytes */
 665
 666         ret = ath9k_hw_init(ah);
 667         if (ret) {
 668                 ath_err(common,
 669                         "Unable to initialize hardware; initialization status: %d\n",
 670                         ret);
 671                 goto err_hw;
 672         }
 673
 674         ret = ath9k_init_queues(priv);
 675         if (ret)
 676                 goto err_queues;
 677
 678         for (i = 0; i < ATH9K_HTC_MAX_BCN_VIF; i++)
 679                 priv->beacon.bslot[i] = NULL;
 680         priv->beacon.slottime = 9;
 681
 682         ath9k_cmn_init_channels_rates(common);
 683         ath9k_cmn_init_crypto(ah);
 684         ath9k_init_misc(priv);
 685         ath9k_htc_init_btcoex(priv, product);
 686
 687         return 0;
 688
 689 err_queues:
 690         ath9k_hw_deinit(ah);
 691 err_hw:
 692
 693         kfree(ah);
 694         priv->ah = NULL;
 695
 696         return ret;
 697 }
 698
 699 static const struct ieee80211_iface_limit if_limits[] = {
 700         { .max = 2,     .types = BIT(NL80211_IFTYPE_STATION) |
 701                                  BIT(NL80211_IFTYPE_P2P_CLIENT) },
 702         { .max = 2,     .types = BIT(NL80211_IFTYPE_AP) |
 703 #ifdef CONFIG_MAC80211_MESH
 704                                  BIT(NL80211_IFTYPE_MESH_POINT) |
 705 #endif
 706                                  BIT(NL80211_IFTYPE_P2P_GO) },
 707 };
 708
 709 static const struct ieee80211_iface_combination if_comb = {
 710         .limits = if_limits,
 711         .n_limits = ARRAY_SIZE(if_limits),
 712         .max_interfaces = 2,
 713         .num_different_channels = 1,
 714 };
 715
 716 static void ath9k_set_hw_capab(struct ath9k_htc_priv *priv,
 717                                struct ieee80211_hw *hw)
 718 {
 719         struct ath_hw *ah = priv->ah;
 720         struct ath_common *common = ath9k_hw_common(priv->ah);
 721         struct base_eep_header *pBase;
 722
 723         ieee80211_hw_set(hw, HOST_BROADCAST_PS_BUFFERING);
 724         ieee80211_hw_set(hw, MFP_CAPABLE);
 725         ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
 726         ieee80211_hw_set(hw, PS_NULLFUNC_STACK);
 727         ieee80211_hw_set(hw, RX_INCLUDES_FCS);
 728         ieee80211_hw_set(hw, HAS_RATE_CONTROL);
 729         ieee80211_hw_set(hw, SPECTRUM_MGMT);
 730         ieee80211_hw_set(hw, SIGNAL_DBM);
 731         ieee80211_hw_set(hw, AMPDU_AGGREGATION);
 732
 733         if (ath9k_ps_enable)
 734                 ieee80211_hw_set(hw, SUPPORTS_PS);
 735
 736         hw->wiphy->interface_modes =
 737                 BIT(NL80211_IFTYPE_STATION) |
 738                 BIT(NL80211_IFTYPE_ADHOC) |
 739                 BIT(NL80211_IFTYPE_AP) |
 740                 BIT(NL80211_IFTYPE_P2P_GO) |
 741                 BIT(NL80211_IFTYPE_P2P_CLIENT) |
 742                 BIT(NL80211_IFTYPE_MESH_POINT) |
 743                 BIT(NL80211_IFTYPE_OCB);
 744
 745         hw->wiphy->iface_combinations = &if_comb;
 746         hw->wiphy->n_iface_combinations = 1;
 747
 748         hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
 749
 750         hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN |
 751                             WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
 752                             WIPHY_FLAG_HAS_CHANNEL_SWITCH;
 753
 754         hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
 755
 756         hw->queues = 4;
 757         hw->max_listen_interval = 1;
 758
 759         hw->vif_data_size = sizeof(struct ath9k_htc_vif);
 760         hw->sta_data_size = sizeof(struct ath9k_htc_sta);
 761
 762         /* tx_frame_hdr is larger than tx_mgmt_hdr anyway */
 763         hw->extra_tx_headroom = sizeof(struct tx_frame_hdr) +
 764                 sizeof(struct htc_frame_hdr) + 4;
 765
 766         if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_2GHZ)
 767                 hw->wiphy->bands[NL80211_BAND_2GHZ] =
 768                         &common->sbands[NL80211_BAND_2GHZ];
 769         if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_5GHZ)
 770                 hw->wiphy->bands[NL80211_BAND_5GHZ] =
 771                         &common->sbands[NL80211_BAND_5GHZ];
 772
 773         ath9k_cmn_reload_chainmask(ah);
 774
 775         pBase = ath9k_htc_get_eeprom_base(priv);
 776         if (pBase) {
 777                 hw->wiphy->available_antennas_rx = pBase->rxMask;
 778                 hw->wiphy->available_antennas_tx = pBase->txMask;
 779         }
 780
 781         SET_IEEE80211_PERM_ADDR(hw, common->macaddr);
 782
 783         wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_CQM_RSSI_LIST);
 784 }
 785
 786 static int ath9k_init_firmware_version(struct ath9k_htc_priv *priv)
 787 {
 788         struct ieee80211_hw *hw = priv->hw;
 789         struct wmi_fw_version cmd_rsp;
 790         int ret;
 791
 792         memset(&cmd_rsp, 0, sizeof(cmd_rsp));
 793
 794         WMI_CMD(WMI_GET_FW_VERSION);
 795         if (ret)
 796                 return -EINVAL;
 797
 798         priv->fw_version_major = be16_to_cpu(cmd_rsp.major);
 799         priv->fw_version_minor = be16_to_cpu(cmd_rsp.minor);
 800
 801         snprintf(hw->wiphy->fw_version, sizeof(hw->wiphy->fw_version), "%d.%d",
 802                  priv->fw_version_major,
 803                  priv->fw_version_minor);
 804
 805         dev_info(priv->dev, "ath9k_htc: FW Version: %d.%d\n",
 806                  priv->fw_version_major,
 807                  priv->fw_version_minor);
 808
 809         /*
 810          * Check if the available FW matches the driver's
 811          * required version.
 812          */
 813         if (priv->fw_version_major != MAJOR_VERSION_REQ ||
 814             priv->fw_version_minor < MINOR_VERSION_REQ) {
 815                 dev_err(priv->dev, "ath9k_htc: Please upgrade to FW version %d.%d\n",
 816                         MAJOR_VERSION_REQ, MINOR_VERSION_REQ);
 817                 return -EINVAL;
 818         }
 819
 820         if (priv->fw_version_major == 1 && priv->fw_version_minor < 4)
 821                 set_bit(HTC_FWFLAG_NO_RMW, &priv->fw_flags);
 822
 823         dev_info(priv->dev, "FW RMW support: %s\n",
 824                 test_bit(HTC_FWFLAG_NO_RMW, &priv->fw_flags) ? "Off" : "On");
 825
 826         return 0;
 827 }
 828
 829 static int ath9k_init_device(struct ath9k_htc_priv *priv,
 830                              u16 devid, char *product, u32 drv_info)
 831 {
 832         struct ieee80211_hw *hw = priv->hw;
 833         struct ath_common *common;
 834         struct ath_hw *ah;
 835         int error = 0;
 836         struct ath_regulatory *reg;
 837         char hw_name[64];
 838
 839         /* Bring up device */
 840         error = ath9k_init_priv(priv, devid, product, drv_info);
 841         if (error != 0)
 842                 goto err_init;
 843
 844         ah = priv->ah;
 845         common = ath9k_hw_common(ah);
 846         ath9k_set_hw_capab(priv, hw);
 847
 848         error = ath9k_init_firmware_version(priv);
 849         if (error != 0)
 850                 goto err_fw;
 851
 852         /* Initialize regulatory */
 853         error = ath_regd_init(&common->regulatory, priv->hw->wiphy,
 854                               ath9k_reg_notifier);
 855         if (error)
 856                 goto err_regd;
 857
 858         reg = &common->regulatory;
 859
 860         /* Setup TX */
 861         error = ath9k_tx_init(priv);
 862         if (error != 0)
 863                 goto err_tx;
 864
 865         /* Setup RX */
 866         error = ath9k_rx_init(priv);
 867         if (error != 0)
 868                 goto err_rx;
 869
 870         ath9k_hw_disable(priv->ah);
 871 #ifdef CONFIG_MAC80211_LEDS
 872         /* must be initialized before ieee80211_register_hw */
 873         priv->led_cdev.default_trigger = ieee80211_create_tpt_led_trigger(priv->hw,
 874                 IEEE80211_TPT_LEDTRIG_FL_RADIO, ath9k_htc_tpt_blink,
 875                 ARRAY_SIZE(ath9k_htc_tpt_blink));
 876 #endif
 877
 878         /* Register with mac80211 */
 879         error = ieee80211_register_hw(hw);
 880         if (error)
 881                 goto err_register;
 882
 883         /* Handle world regulatory */
 884         if (!ath_is_world_regd(reg)) {
 885                 error = regulatory_hint(hw->wiphy, reg->alpha2);
 886                 if (error)
 887                         goto err_world;
 888         }
 889
 890         error = ath9k_htc_init_debug(priv->ah);
 891         if (error) {
 892                 ath_err(common, "Unable to create debugfs files\n");
 893                 goto err_world;
 894         }
 895
 896         ath_dbg(common, CONFIG,
 897                 "WMI:%d, BCN:%d, CAB:%d, UAPSD:%d, MGMT:%d, BE:%d, BK:%d, VI:%d, VO:%d\n",
 898                 priv->wmi_cmd_ep,
 899                 priv->beacon_ep,
 900                 priv->cab_ep,
 901                 priv->uapsd_ep,
 902                 priv->mgmt_ep,
 903                 priv->data_be_ep,
 904                 priv->data_bk_ep,
 905                 priv->data_vi_ep,
 906                 priv->data_vo_ep);
 907
 908         ath9k_hw_name(priv->ah, hw_name, sizeof(hw_name));
 909         wiphy_info(hw->wiphy, "%s\n", hw_name);
 910
 911         ath9k_init_leds(priv);
 912         ath9k_start_rfkill_poll(priv);
 913
 914         return 0;
 915
 916 err_world:
 917         ieee80211_unregister_hw(hw);
 918 err_register:
 919         ath9k_rx_cleanup(priv);
 920 err_rx:
 921         ath9k_tx_cleanup(priv);
 922 err_tx:
 923         /* Nothing */
 924 err_regd:
 925         /* Nothing */
 926 err_fw:
 927         ath9k_deinit_priv(priv);
 928 err_init:
 929         return error;
 930 }
 931
 932 int ath9k_htc_probe_device(struct htc_target *htc_handle, struct device *dev,
 933                            u16 devid, char *product, u32 drv_info)
 934 {
 935         struct ieee80211_hw *hw;
 936         struct ath9k_htc_priv *priv;
 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_deinit_wmi(priv);
 972 err_free:
 973         ieee80211_free_hw(hw);
 974         return ret;
 975 }
 976
 977 void ath9k_htc_disconnect_device(struct htc_target *htc_handle, bool hotunplug)
 978 {
 979         if (htc_handle->drv_priv) {
 980
 981                 /* Check if the device has been yanked out. */
 982                 if (hotunplug)
 983                         htc_handle->drv_priv->ah->ah_flags |= AH_UNPLUGGED;
 984
 985                 ath9k_deinit_device(htc_handle->drv_priv);
 986                 ath9k_deinit_wmi(htc_handle->drv_priv);
 987                 ieee80211_free_hw(htc_handle->drv_priv->hw);
 988         }
 989 }
 990
 991 #ifdef CONFIG_PM
 992
 993 void ath9k_htc_suspend(struct htc_target *htc_handle)
 994 {
 995         ath9k_htc_setpower(htc_handle->drv_priv, ATH9K_PM_FULL_SLEEP);
 996 }
 997
 998 int ath9k_htc_resume(struct htc_target *htc_handle)
 999 {
1000         struct ath9k_htc_priv *priv = htc_handle->drv_priv;
1001         int ret;
1002
1003         ret = ath9k_htc_wait_for_target(priv);
1004         if (ret)
1005                 return ret;
1006
1007         ret = ath9k_init_htc_services(priv, priv->ah->hw_version.devid,
1008                                       priv->ah->hw_version.usbdev);
1009         ath9k_configure_leds(priv);
1010
1011         return ret;
1012 }
1013 #endif
1014
1015 static int __init ath9k_htc_init(void)
1016 {
1017         if (ath9k_hif_usb_init() < 0) {
1018                 pr_err("No USB devices found, driver not installed\n");
1019                 return -ENODEV;
1020         }
1021
1022         return 0;
1023 }
1024 module_init(ath9k_htc_init);
1025
1026 static void __exit ath9k_htc_exit(void)
1027 {
1028         ath9k_hif_usb_exit();
1029         pr_info("Driver unloaded\n");
1030 }
1031 module_exit(ath9k_htc_exit);