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 #include "htc.h"
  18
  19 MODULE_AUTHOR("Atheros Communications");
  20 MODULE_LICENSE("Dual BSD/GPL");
  21 MODULE_DESCRIPTION("Atheros driver 802.11n HTC based wireless devices");
  22
  23 static unsigned int ath9k_debug = ATH_DBG_DEFAULT;
  24 module_param_named(debug, ath9k_debug, uint, 0);
  25 MODULE_PARM_DESC(debug, "Debugging mask");
  26
  27 int htc_modparam_nohwcrypt;
  28 module_param_named(nohwcrypt, htc_modparam_nohwcrypt, int, 0444);
  29 MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption");
  30
  31 #define CHAN2G(_freq, _idx)  { \
  32         .center_freq = (_freq), \
  33         .hw_value = (_idx), \
  34         .max_power = 20, \
  35 }
  36
  37 #define CHAN5G(_freq, _idx) { \
  38         .band = IEEE80211_BAND_5GHZ, \
  39         .center_freq = (_freq), \
  40         .hw_value = (_idx), \
  41         .max_power = 20, \
  42 }
  43
  44 #define ATH_HTC_BTCOEX_PRODUCT_ID "wb193"
  45
  46 static struct ieee80211_channel ath9k_2ghz_channels[] = {
  47         CHAN2G(2412, 0), /* Channel 1 */
  48         CHAN2G(2417, 1), /* Channel 2 */
  49         CHAN2G(2422, 2), /* Channel 3 */
  50         CHAN2G(2427, 3), /* Channel 4 */
  51         CHAN2G(2432, 4), /* Channel 5 */
  52         CHAN2G(2437, 5), /* Channel 6 */
  53         CHAN2G(2442, 6), /* Channel 7 */
  54         CHAN2G(2447, 7), /* Channel 8 */
  55         CHAN2G(2452, 8), /* Channel 9 */
  56         CHAN2G(2457, 9), /* Channel 10 */
  57         CHAN2G(2462, 10), /* Channel 11 */
  58         CHAN2G(2467, 11), /* Channel 12 */
  59         CHAN2G(2472, 12), /* Channel 13 */
  60         CHAN2G(2484, 13), /* Channel 14 */
  61 };
  62
  63 static struct ieee80211_channel ath9k_5ghz_channels[] = {
  64         /* _We_ call this UNII 1 */
  65         CHAN5G(5180, 14), /* Channel 36 */
  66         CHAN5G(5200, 15), /* Channel 40 */
  67         CHAN5G(5220, 16), /* Channel 44 */
  68         CHAN5G(5240, 17), /* Channel 48 */
  69         /* _We_ call this UNII 2 */
  70         CHAN5G(5260, 18), /* Channel 52 */
  71         CHAN5G(5280, 19), /* Channel 56 */
  72         CHAN5G(5300, 20), /* Channel 60 */
  73         CHAN5G(5320, 21), /* Channel 64 */
  74         /* _We_ call this "Middle band" */
  75         CHAN5G(5500, 22), /* Channel 100 */
  76         CHAN5G(5520, 23), /* Channel 104 */
  77         CHAN5G(5540, 24), /* Channel 108 */
  78         CHAN5G(5560, 25), /* Channel 112 */
  79         CHAN5G(5580, 26), /* Channel 116 */
  80         CHAN5G(5600, 27), /* Channel 120 */
  81         CHAN5G(5620, 28), /* Channel 124 */
  82         CHAN5G(5640, 29), /* Channel 128 */
  83         CHAN5G(5660, 30), /* Channel 132 */
  84         CHAN5G(5680, 31), /* Channel 136 */
  85         CHAN5G(5700, 32), /* Channel 140 */
  86         /* _We_ call this UNII 3 */
  87         CHAN5G(5745, 33), /* Channel 149 */
  88         CHAN5G(5765, 34), /* Channel 153 */
  89         CHAN5G(5785, 35), /* Channel 157 */
  90         CHAN5G(5805, 36), /* Channel 161 */
  91         CHAN5G(5825, 37), /* Channel 165 */
  92 };
  93
  94 /* Atheros hardware rate code addition for short premble */
  95 #define SHPCHECK(__hw_rate, __flags) \
  96         ((__flags & IEEE80211_RATE_SHORT_PREAMBLE) ? (__hw_rate | 0x04) : 0)
  97
  98 #define RATE(_bitrate, _hw_rate, _flags) {              \
  99         .bitrate        = (_bitrate),                   \
 100         .flags          = (_flags),                     \
 101         .hw_value       = (_hw_rate),                   \
 102         .hw_value_short = (SHPCHECK(_hw_rate, _flags))  \
 103 }
 104
 105 static struct ieee80211_rate ath9k_legacy_rates[] = {
 106         RATE(10, 0x1b, 0),
 107         RATE(20, 0x1a, IEEE80211_RATE_SHORT_PREAMBLE), /* shortp : 0x1e */
 108         RATE(55, 0x19, IEEE80211_RATE_SHORT_PREAMBLE), /* shortp: 0x1d */
 109         RATE(110, 0x18, IEEE80211_RATE_SHORT_PREAMBLE), /* short: 0x1c */
 110         RATE(60, 0x0b, 0),
 111         RATE(90, 0x0f, 0),
 112         RATE(120, 0x0a, 0),
 113         RATE(180, 0x0e, 0),
 114         RATE(240, 0x09, 0),
 115         RATE(360, 0x0d, 0),
 116         RATE(480, 0x08, 0),
 117         RATE(540, 0x0c, 0),
 118 };
 119
 120 #ifdef CONFIG_MAC80211_LEDS
 121 static const struct ieee80211_tpt_blink ath9k_htc_tpt_blink[] = {
 122         { .throughput = 0 * 1024, .blink_time = 334 },
 123         { .throughput = 1 * 1024, .blink_time = 260 },
 124         { .throughput = 5 * 1024, .blink_time = 220 },
 125         { .throughput = 10 * 1024, .blink_time = 190 },
 126         { .throughput = 20 * 1024, .blink_time = 170 },
 127         { .throughput = 50 * 1024, .blink_time = 150 },
 128         { .throughput = 70 * 1024, .blink_time = 130 },
 129         { .throughput = 100 * 1024, .blink_time = 110 },
 130         { .throughput = 200 * 1024, .blink_time = 80 },
 131         { .throughput = 300 * 1024, .blink_time = 50 },
 132 };
 133 #endif
 134
 135 static int ath9k_htc_wait_for_target(struct ath9k_htc_priv *priv)
 136 {
 137         int time_left;
 138
 139         if (atomic_read(&priv->htc->tgt_ready) > 0) {
 140                 atomic_dec(&priv->htc->tgt_ready);
 141                 return 0;
 142         }
 143
 144         /* Firmware can take up to 50ms to get ready, to be safe use 1 second */
 145         time_left = wait_for_completion_timeout(&priv->htc->target_wait, HZ);
 146         if (!time_left) {
 147                 dev_err(priv->dev, "ath9k_htc: Target is unresponsive\n");
 148                 return -ETIMEDOUT;
 149         }
 150
 151         atomic_dec(&priv->htc->tgt_ready);
 152
 153         return 0;
 154 }
 155
 156 static void ath9k_deinit_priv(struct ath9k_htc_priv *priv)
 157 {
 158         ath9k_hw_deinit(priv->ah);
 159         kfree(priv->ah);
 160         priv->ah = NULL;
 161 }
 162
 163 static void ath9k_deinit_device(struct ath9k_htc_priv *priv)
 164 {
 165         struct ieee80211_hw *hw = priv->hw;
 166
 167         wiphy_rfkill_stop_polling(hw->wiphy);
 168         ath9k_deinit_leds(priv);
 169         ieee80211_unregister_hw(hw);
 170         ath9k_rx_cleanup(priv);
 171         ath9k_tx_cleanup(priv);
 172         ath9k_deinit_priv(priv);
 173 }
 174
 175 static inline int ath9k_htc_connect_svc(struct ath9k_htc_priv *priv,
 176                                         u16 service_id,
 177                                         void (*tx) (void *,
 178                                                     struct sk_buff *,
 179                                                     enum htc_endpoint_id,
 180                                                     bool txok),
 181                                         enum htc_endpoint_id *ep_id)
 182 {
 183         struct htc_service_connreq req;
 184
 185         memset(&req, 0, sizeof(struct htc_service_connreq));
 186
 187         req.service_id = service_id;
 188         req.ep_callbacks.priv = priv;
 189         req.ep_callbacks.rx = ath9k_htc_rxep;
 190         req.ep_callbacks.tx = tx;
 191
 192         return htc_connect_service(priv->htc, &req, ep_id);
 193 }
 194
 195 static int ath9k_init_htc_services(struct ath9k_htc_priv *priv, u16 devid,
 196                                    u32 drv_info)
 197 {
 198         int ret;
 199
 200         /* WMI CMD*/
 201         ret = ath9k_wmi_connect(priv->htc, priv->wmi, &priv->wmi_cmd_ep);
 202         if (ret)
 203                 goto err;
 204
 205         /* Beacon */
 206         ret = ath9k_htc_connect_svc(priv, WMI_BEACON_SVC, ath9k_htc_beaconep,
 207                                     &priv->beacon_ep);
 208         if (ret)
 209                 goto err;
 210
 211         /* CAB */
 212         ret = ath9k_htc_connect_svc(priv, WMI_CAB_SVC, ath9k_htc_txep,
 213                                     &priv->cab_ep);
 214         if (ret)
 215                 goto err;
 216
 217
 218         /* UAPSD */
 219         ret = ath9k_htc_connect_svc(priv, WMI_UAPSD_SVC, ath9k_htc_txep,
 220                                     &priv->uapsd_ep);
 221         if (ret)
 222                 goto err;
 223
 224         /* MGMT */
 225         ret = ath9k_htc_connect_svc(priv, WMI_MGMT_SVC, ath9k_htc_txep,
 226                                     &priv->mgmt_ep);
 227         if (ret)
 228                 goto err;
 229
 230         /* DATA BE */
 231         ret = ath9k_htc_connect_svc(priv, WMI_DATA_BE_SVC, ath9k_htc_txep,
 232                                     &priv->data_be_ep);
 233         if (ret)
 234                 goto err;
 235
 236         /* DATA BK */
 237         ret = ath9k_htc_connect_svc(priv, WMI_DATA_BK_SVC, ath9k_htc_txep,
 238                                     &priv->data_bk_ep);
 239         if (ret)
 240                 goto err;
 241
 242         /* DATA VI */
 243         ret = ath9k_htc_connect_svc(priv, WMI_DATA_VI_SVC, ath9k_htc_txep,
 244                                     &priv->data_vi_ep);
 245         if (ret)
 246                 goto err;
 247
 248         /* DATA VO */
 249         ret = ath9k_htc_connect_svc(priv, WMI_DATA_VO_SVC, ath9k_htc_txep,
 250                                     &priv->data_vo_ep);
 251         if (ret)
 252                 goto err;
 253
 254         /*
 255          * Setup required credits before initializing HTC.
 256          * This is a bit hacky, but, since queuing is done in
 257          * the HIF layer, shouldn't matter much.
 258          */
 259
 260         if (IS_AR7010_DEVICE(drv_info))
 261                 priv->htc->credits = 45;
 262         else
 263                 priv->htc->credits = 33;
 264
 265         ret = htc_init(priv->htc);
 266         if (ret)
 267                 goto err;
 268
 269         dev_info(priv->dev, "ath9k_htc: HTC initialized with %d credits\n",
 270                  priv->htc->credits);
 271
 272         return 0;
 273
 274 err:
 275         dev_err(priv->dev, "ath9k_htc: Unable to initialize HTC services\n");
 276         return ret;
 277 }
 278
 279 static int ath9k_reg_notifier(struct wiphy *wiphy,
 280                               struct regulatory_request *request)
 281 {
 282         struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
 283         struct ath9k_htc_priv *priv = hw->priv;
 284
 285         return ath_reg_notifier_apply(wiphy, request,
 286                                       ath9k_hw_regulatory(priv->ah));
 287 }
 288
 289 static unsigned int ath9k_regread(void *hw_priv, u32 reg_offset)
 290 {
 291         struct ath_hw *ah = (struct ath_hw *) hw_priv;
 292         struct ath_common *common = ath9k_hw_common(ah);
 293         struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
 294         __be32 val, reg = cpu_to_be32(reg_offset);
 295         int r;
 296
 297         r = ath9k_wmi_cmd(priv->wmi, WMI_REG_READ_CMDID,
 298                           (u8 *) &reg, sizeof(reg),
 299                           (u8 *) &val, sizeof(val),
 300                           100);
 301         if (unlikely(r)) {
 302                 ath_dbg(common, WMI, "REGISTER READ FAILED: (0x%04x, %d)\n",
 303                         reg_offset, r);
 304                 return -EIO;
 305         }
 306
 307         return be32_to_cpu(val);
 308 }
 309
 310 static void ath9k_multi_regread(void *hw_priv, u32 *addr,
 311                                 u32 *val, u16 count)
 312 {
 313         struct ath_hw *ah = (struct ath_hw *) hw_priv;
 314         struct ath_common *common = ath9k_hw_common(ah);
 315         struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
 316         __be32 tmpaddr[8];
 317         __be32 tmpval[8];
 318         int i, ret;
 319
 320        for (i = 0; i < count; i++) {
 321                tmpaddr[i] = cpu_to_be32(addr[i]);
 322        }
 323
 324        ret = ath9k_wmi_cmd(priv->wmi, WMI_REG_READ_CMDID,
 325                            (u8 *)tmpaddr , sizeof(u32) * count,
 326                            (u8 *)tmpval, sizeof(u32) * count,
 327                            100);
 328         if (unlikely(ret)) {
 329                 ath_dbg(common, WMI,
 330                         "Multiple REGISTER READ FAILED (count: %d)\n", count);
 331         }
 332
 333        for (i = 0; i < count; i++) {
 334                val[i] = be32_to_cpu(tmpval[i]);
 335        }
 336 }
 337
 338 static void ath9k_regwrite_single(void *hw_priv, u32 val, u32 reg_offset)
 339 {
 340         struct ath_hw *ah = (struct ath_hw *) hw_priv;
 341         struct ath_common *common = ath9k_hw_common(ah);
 342         struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
 343         const __be32 buf[2] = {
 344                 cpu_to_be32(reg_offset),
 345                 cpu_to_be32(val),
 346         };
 347         int r;
 348
 349         r = ath9k_wmi_cmd(priv->wmi, WMI_REG_WRITE_CMDID,
 350                           (u8 *) &buf, sizeof(buf),
 351                           (u8 *) &val, sizeof(val),
 352                           100);
 353         if (unlikely(r)) {
 354                 ath_dbg(common, WMI, "REGISTER WRITE FAILED:(0x%04x, %d)\n",
 355                         reg_offset, r);
 356         }
 357 }
 358
 359 static void ath9k_regwrite_buffer(void *hw_priv, u32 val, u32 reg_offset)
 360 {
 361         struct ath_hw *ah = (struct ath_hw *) hw_priv;
 362         struct ath_common *common = ath9k_hw_common(ah);
 363         struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
 364         u32 rsp_status;
 365         int r;
 366
 367         mutex_lock(&priv->wmi->multi_write_mutex);
 368
 369         /* Store the register/value */
 370         priv->wmi->multi_write[priv->wmi->multi_write_idx].reg =
 371                 cpu_to_be32(reg_offset);
 372         priv->wmi->multi_write[priv->wmi->multi_write_idx].val =
 373                 cpu_to_be32(val);
 374
 375         priv->wmi->multi_write_idx++;
 376
 377         /* If the buffer is full, send it out. */
 378         if (priv->wmi->multi_write_idx == MAX_CMD_NUMBER) {
 379                 r = ath9k_wmi_cmd(priv->wmi, WMI_REG_WRITE_CMDID,
 380                           (u8 *) &priv->wmi->multi_write,
 381                           sizeof(struct register_write) * priv->wmi->multi_write_idx,
 382                           (u8 *) &rsp_status, sizeof(rsp_status),
 383                           100);
 384                 if (unlikely(r)) {
 385                         ath_dbg(common, WMI,
 386                                 "REGISTER WRITE FAILED, multi len: %d\n",
 387                                 priv->wmi->multi_write_idx);
 388                 }
 389                 priv->wmi->multi_write_idx = 0;
 390         }
 391
 392         mutex_unlock(&priv->wmi->multi_write_mutex);
 393 }
 394
 395 static void ath9k_regwrite(void *hw_priv, u32 val, u32 reg_offset)
 396 {
 397         struct ath_hw *ah = (struct ath_hw *) hw_priv;
 398         struct ath_common *common = ath9k_hw_common(ah);
 399         struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
 400
 401         if (atomic_read(&priv->wmi->mwrite_cnt))
 402                 ath9k_regwrite_buffer(hw_priv, val, reg_offset);
 403         else
 404                 ath9k_regwrite_single(hw_priv, val, reg_offset);
 405 }
 406
 407 static void ath9k_enable_regwrite_buffer(void *hw_priv)
 408 {
 409         struct ath_hw *ah = (struct ath_hw *) hw_priv;
 410         struct ath_common *common = ath9k_hw_common(ah);
 411         struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
 412
 413         atomic_inc(&priv->wmi->mwrite_cnt);
 414 }
 415
 416 static void ath9k_regwrite_flush(void *hw_priv)
 417 {
 418         struct ath_hw *ah = (struct ath_hw *) hw_priv;
 419         struct ath_common *common = ath9k_hw_common(ah);
 420         struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
 421         u32 rsp_status;
 422         int r;
 423
 424         atomic_dec(&priv->wmi->mwrite_cnt);
 425
 426         mutex_lock(&priv->wmi->multi_write_mutex);
 427
 428         if (priv->wmi->multi_write_idx) {
 429                 r = ath9k_wmi_cmd(priv->wmi, WMI_REG_WRITE_CMDID,
 430                           (u8 *) &priv->wmi->multi_write,
 431                           sizeof(struct register_write) * priv->wmi->multi_write_idx,
 432                           (u8 *) &rsp_status, sizeof(rsp_status),
 433                           100);
 434                 if (unlikely(r)) {
 435                         ath_dbg(common, WMI,
 436                                 "REGISTER WRITE FAILED, multi len: %d\n",
 437                                 priv->wmi->multi_write_idx);
 438                 }
 439                 priv->wmi->multi_write_idx = 0;
 440         }
 441
 442         mutex_unlock(&priv->wmi->multi_write_mutex);
 443 }
 444
 445 static u32 ath9k_reg_rmw(void *hw_priv, u32 reg_offset, u32 set, u32 clr)
 446 {
 447         u32 val;
 448
 449         val = ath9k_regread(hw_priv, reg_offset);
 450         val &= ~clr;
 451         val |= set;
 452         ath9k_regwrite(hw_priv, val, reg_offset);
 453         return val;
 454 }
 455
 456 static void ath_usb_read_cachesize(struct ath_common *common, int *csz)
 457 {
 458         *csz = L1_CACHE_BYTES >> 2;
 459 }
 460
 461 static bool ath_usb_eeprom_read(struct ath_common *common, u32 off, u16 *data)
 462 {
 463         struct ath_hw *ah = (struct ath_hw *) common->ah;
 464
 465         (void)REG_READ(ah, AR5416_EEPROM_OFFSET + (off << AR5416_EEPROM_S));
 466
 467         if (!ath9k_hw_wait(ah,
 468                            AR_EEPROM_STATUS_DATA,
 469                            AR_EEPROM_STATUS_DATA_BUSY |
 470                            AR_EEPROM_STATUS_DATA_PROT_ACCESS, 0,
 471                            AH_WAIT_TIMEOUT))
 472                 return false;
 473
 474         *data = MS(REG_READ(ah, AR_EEPROM_STATUS_DATA),
 475                    AR_EEPROM_STATUS_DATA_VAL);
 476
 477         return true;
 478 }
 479
 480 static const struct ath_bus_ops ath9k_usb_bus_ops = {
 481         .ath_bus_type = ATH_USB,
 482         .read_cachesize = ath_usb_read_cachesize,
 483         .eeprom_read = ath_usb_eeprom_read,
 484 };
 485
 486 static void setup_ht_cap(struct ath9k_htc_priv *priv,
 487                          struct ieee80211_sta_ht_cap *ht_info)
 488 {
 489         struct ath_common *common = ath9k_hw_common(priv->ah);
 490         u8 tx_streams, rx_streams;
 491         int i;
 492
 493         ht_info->ht_supported = true;
 494         ht_info->cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
 495                        IEEE80211_HT_CAP_SM_PS |
 496                        IEEE80211_HT_CAP_SGI_40 |
 497                        IEEE80211_HT_CAP_DSSSCCK40;
 498
 499         if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_SGI_20)
 500                 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
 501
 502         ht_info->cap |= (1 << IEEE80211_HT_CAP_RX_STBC_SHIFT);
 503
 504         ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
 505         ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_8;
 506
 507         memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
 508
 509         /* ath9k_htc supports only 1 or 2 stream devices */
 510         tx_streams = ath9k_cmn_count_streams(priv->ah->txchainmask, 2);
 511         rx_streams = ath9k_cmn_count_streams(priv->ah->rxchainmask, 2);
 512
 513         ath_dbg(common, CONFIG, "TX streams %d, RX streams: %d\n",
 514                 tx_streams, rx_streams);
 515
 516         if (tx_streams != rx_streams) {
 517                 ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_RX_DIFF;
 518                 ht_info->mcs.tx_params |= ((tx_streams - 1) <<
 519                                            IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT);
 520         }
 521
 522         for (i = 0; i < rx_streams; i++)
 523                 ht_info->mcs.rx_mask[i] = 0xff;
 524
 525         ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_DEFINED;
 526 }
 527
 528 static int ath9k_init_queues(struct ath9k_htc_priv *priv)
 529 {
 530         struct ath_common *common = ath9k_hw_common(priv->ah);
 531         int i;
 532
 533         for (i = 0; i < ARRAY_SIZE(priv->hwq_map); i++)
 534                 priv->hwq_map[i] = -1;
 535
 536         priv->beaconq = ath9k_hw_beaconq_setup(priv->ah);
 537         if (priv->beaconq == -1) {
 538                 ath_err(common, "Unable to setup BEACON xmit queue\n");
 539                 goto err;
 540         }
 541
 542         priv->cabq = ath9k_htc_cabq_setup(priv);
 543         if (priv->cabq == -1) {
 544                 ath_err(common, "Unable to setup CAB xmit queue\n");
 545                 goto err;
 546         }
 547
 548         if (!ath9k_htc_txq_setup(priv, WME_AC_BE)) {
 549                 ath_err(common, "Unable to setup xmit queue for BE traffic\n");
 550                 goto err;
 551         }
 552
 553         if (!ath9k_htc_txq_setup(priv, WME_AC_BK)) {
 554                 ath_err(common, "Unable to setup xmit queue for BK traffic\n");
 555                 goto err;
 556         }
 557         if (!ath9k_htc_txq_setup(priv, WME_AC_VI)) {
 558                 ath_err(common, "Unable to setup xmit queue for VI traffic\n");
 559                 goto err;
 560         }
 561         if (!ath9k_htc_txq_setup(priv, WME_AC_VO)) {
 562                 ath_err(common, "Unable to setup xmit queue for VO traffic\n");
 563                 goto err;
 564         }
 565
 566         return 0;
 567
 568 err:
 569         return -EINVAL;
 570 }
 571
 572 static void ath9k_init_channels_rates(struct ath9k_htc_priv *priv)
 573 {
 574         if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_2GHZ) {
 575                 priv->sbands[IEEE80211_BAND_2GHZ].channels =
 576                         ath9k_2ghz_channels;
 577                 priv->sbands[IEEE80211_BAND_2GHZ].band = IEEE80211_BAND_2GHZ;
 578                 priv->sbands[IEEE80211_BAND_2GHZ].n_channels =
 579                         ARRAY_SIZE(ath9k_2ghz_channels);
 580                 priv->sbands[IEEE80211_BAND_2GHZ].bitrates = ath9k_legacy_rates;
 581                 priv->sbands[IEEE80211_BAND_2GHZ].n_bitrates =
 582                         ARRAY_SIZE(ath9k_legacy_rates);
 583         }
 584
 585         if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_5GHZ) {
 586                 priv->sbands[IEEE80211_BAND_5GHZ].channels = ath9k_5ghz_channels;
 587                 priv->sbands[IEEE80211_BAND_5GHZ].band = IEEE80211_BAND_5GHZ;
 588                 priv->sbands[IEEE80211_BAND_5GHZ].n_channels =
 589                         ARRAY_SIZE(ath9k_5ghz_channels);
 590                 priv->sbands[IEEE80211_BAND_5GHZ].bitrates =
 591                         ath9k_legacy_rates + 4;
 592                 priv->sbands[IEEE80211_BAND_5GHZ].n_bitrates =
 593                         ARRAY_SIZE(ath9k_legacy_rates) - 4;
 594         }
 595 }
 596
 597 static void ath9k_init_misc(struct ath9k_htc_priv *priv)
 598 {
 599         struct ath_common *common = ath9k_hw_common(priv->ah);
 600
 601         memcpy(common->bssidmask, ath_bcast_mac, ETH_ALEN);
 602
 603         priv->ah->opmode = NL80211_IFTYPE_STATION;
 604 }
 605
 606 static void ath9k_init_btcoex(struct ath9k_htc_priv *priv)
 607 {
 608         int qnum;
 609
 610         switch (ath9k_hw_get_btcoex_scheme(priv->ah)) {
 611         case ATH_BTCOEX_CFG_NONE:
 612                 break;
 613         case ATH_BTCOEX_CFG_3WIRE:
 614                 priv->ah->btcoex_hw.btactive_gpio = 7;
 615                 priv->ah->btcoex_hw.btpriority_gpio = 6;
 616                 priv->ah->btcoex_hw.wlanactive_gpio = 8;
 617                 priv->btcoex.bt_stomp_type = ATH_BTCOEX_STOMP_LOW;
 618                 ath9k_hw_btcoex_init_3wire(priv->ah);
 619                 ath_htc_init_btcoex_work(priv);
 620                 qnum = priv->hwq_map[WME_AC_BE];
 621                 ath9k_hw_init_btcoex_hw(priv->ah, qnum);
 622                 break;
 623         default:
 624                 WARN_ON(1);
 625                 break;
 626         }
 627 }
 628
 629 static int ath9k_init_priv(struct ath9k_htc_priv *priv,
 630                            u16 devid, char *product,
 631                            u32 drv_info)
 632 {
 633         struct ath_hw *ah = NULL;
 634         struct ath_common *common;
 635         int i, ret = 0, csz = 0;
 636
 637         priv->op_flags |= OP_INVALID;
 638
 639         ah = kzalloc(sizeof(struct ath_hw), GFP_KERNEL);
 640         if (!ah)
 641                 return -ENOMEM;
 642
 643         ah->hw_version.devid = devid;
 644         ah->hw_version.usbdev = drv_info;
 645         ah->ah_flags |= AH_USE_EEPROM;
 646         ah->reg_ops.read = ath9k_regread;
 647         ah->reg_ops.multi_read = ath9k_multi_regread;
 648         ah->reg_ops.write = ath9k_regwrite;
 649         ah->reg_ops.enable_write_buffer = ath9k_enable_regwrite_buffer;
 650         ah->reg_ops.write_flush = ath9k_regwrite_flush;
 651         ah->reg_ops.rmw = ath9k_reg_rmw;
 652         priv->ah = ah;
 653
 654         common = ath9k_hw_common(ah);
 655         common->ops = &ah->reg_ops;
 656         common->bus_ops = &ath9k_usb_bus_ops;
 657         common->ah = ah;
 658         common->hw = priv->hw;
 659         common->priv = priv;
 660         common->debug_mask = ath9k_debug;
 661
 662         spin_lock_init(&priv->beacon_lock);
 663         spin_lock_init(&priv->tx.tx_lock);
 664         mutex_init(&priv->mutex);
 665         mutex_init(&priv->htc_pm_lock);
 666         tasklet_init(&priv->rx_tasklet, ath9k_rx_tasklet,
 667                      (unsigned long)priv);
 668         tasklet_init(&priv->tx_failed_tasklet, ath9k_tx_failed_tasklet,
 669                      (unsigned long)priv);
 670         INIT_DELAYED_WORK(&priv->ani_work, ath9k_htc_ani_work);
 671         INIT_WORK(&priv->ps_work, ath9k_ps_work);
 672         INIT_WORK(&priv->fatal_work, ath9k_fatal_work);
 673         setup_timer(&priv->tx.cleanup_timer, ath9k_htc_tx_cleanup_timer,
 674                     (unsigned long)priv);
 675
 676         /*
 677          * Cache line size is used to size and align various
 678          * structures used to communicate with the hardware.
 679          */
 680         ath_read_cachesize(common, &csz);
 681         common->cachelsz = csz << 2; /* convert to bytes */
 682
 683         ret = ath9k_hw_init(ah);
 684         if (ret) {
 685                 ath_err(common,
 686                         "Unable to initialize hardware; initialization status: %d\n",
 687                         ret);
 688                 goto err_hw;
 689         }
 690
 691         ret = ath9k_init_queues(priv);
 692         if (ret)
 693                 goto err_queues;
 694
 695         for (i = 0; i < ATH9K_HTC_MAX_BCN_VIF; i++)
 696                 priv->cur_beacon_conf.bslot[i] = NULL;
 697
 698         ath9k_cmn_init_crypto(ah);
 699         ath9k_init_channels_rates(priv);
 700         ath9k_init_misc(priv);
 701
 702         if (product && strncmp(product, ATH_HTC_BTCOEX_PRODUCT_ID, 5) == 0) {
 703                 ah->btcoex_hw.scheme = ATH_BTCOEX_CFG_3WIRE;
 704                 if (ath9k_hw_get_btcoex_scheme(ah) != ATH_BTCOEX_CFG_NONE)
 705                         ath9k_init_btcoex(priv);
 706         }
 707
 708         return 0;
 709
 710 err_queues:
 711         ath9k_hw_deinit(ah);
 712 err_hw:
 713
 714         kfree(ah);
 715         priv->ah = NULL;
 716
 717         return ret;
 718 }
 719
 720 static void ath9k_set_hw_capab(struct ath9k_htc_priv *priv,
 721                                struct ieee80211_hw *hw)
 722 {
 723         struct ath_common *common = ath9k_hw_common(priv->ah);
 724
 725         hw->flags = IEEE80211_HW_SIGNAL_DBM |
 726                 IEEE80211_HW_AMPDU_AGGREGATION |
 727                 IEEE80211_HW_SPECTRUM_MGMT |
 728                 IEEE80211_HW_HAS_RATE_CONTROL |
 729                 IEEE80211_HW_RX_INCLUDES_FCS |
 730                 IEEE80211_HW_SUPPORTS_PS |
 731                 IEEE80211_HW_PS_NULLFUNC_STACK |
 732                 IEEE80211_HW_REPORTS_TX_ACK_STATUS |
 733                 IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING;
 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
 742         hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
 743
 744         hw->queues = 4;
 745         hw->channel_change_time = 5000;
 746         hw->max_listen_interval = 10;
 747
 748         hw->vif_data_size = sizeof(struct ath9k_htc_vif);
 749         hw->sta_data_size = sizeof(struct ath9k_htc_sta);
 750
 751         /* tx_frame_hdr is larger than tx_mgmt_hdr anyway */
 752         hw->extra_tx_headroom = sizeof(struct tx_frame_hdr) +
 753                 sizeof(struct htc_frame_hdr) + 4;
 754
 755         if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_2GHZ)
 756                 hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
 757                         &priv->sbands[IEEE80211_BAND_2GHZ];
 758         if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_5GHZ)
 759                 hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
 760                         &priv->sbands[IEEE80211_BAND_5GHZ];
 761
 762         if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_HT) {
 763                 if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_2GHZ)
 764                         setup_ht_cap(priv,
 765                                      &priv->sbands[IEEE80211_BAND_2GHZ].ht_cap);
 766                 if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_5GHZ)
 767                         setup_ht_cap(priv,
 768                                      &priv->sbands[IEEE80211_BAND_5GHZ].ht_cap);
 769         }
 770
 771         SET_IEEE80211_PERM_ADDR(hw, common->macaddr);
 772 }
 773
 774 static int ath9k_init_firmware_version(struct ath9k_htc_priv *priv)
 775 {
 776         struct ieee80211_hw *hw = priv->hw;
 777         struct wmi_fw_version cmd_rsp;
 778         int ret;
 779
 780         memset(&cmd_rsp, 0, sizeof(cmd_rsp));
 781
 782         WMI_CMD(WMI_GET_FW_VERSION);
 783         if (ret)
 784                 return -EINVAL;
 785
 786         priv->fw_version_major = be16_to_cpu(cmd_rsp.major);
 787         priv->fw_version_minor = be16_to_cpu(cmd_rsp.minor);
 788
 789         snprintf(hw->wiphy->fw_version, ETHTOOL_BUSINFO_LEN, "%d.%d",
 790                  priv->fw_version_major,
 791                  priv->fw_version_minor);
 792
 793         dev_info(priv->dev, "ath9k_htc: FW Version: %d.%d\n",
 794                  priv->fw_version_major,
 795                  priv->fw_version_minor);
 796
 797         /*
 798          * Check if the available FW matches the driver's
 799          * required version.
 800          */
 801         if (priv->fw_version_major != MAJOR_VERSION_REQ ||
 802             priv->fw_version_minor != MINOR_VERSION_REQ) {
 803                 dev_err(priv->dev, "ath9k_htc: Please upgrade to FW version %d.%d\n",
 804                         MAJOR_VERSION_REQ, MINOR_VERSION_REQ);
 805                 return -EINVAL;
 806         }
 807
 808         return 0;
 809 }
 810
 811 static int ath9k_init_device(struct ath9k_htc_priv *priv,
 812                              u16 devid, char *product, u32 drv_info)
 813 {
 814         struct ieee80211_hw *hw = priv->hw;
 815         struct ath_common *common;
 816         struct ath_hw *ah;
 817         int error = 0;
 818         struct ath_regulatory *reg;
 819         char hw_name[64];
 820
 821         /* Bring up device */
 822         error = ath9k_init_priv(priv, devid, product, drv_info);
 823         if (error != 0)
 824                 goto err_init;
 825
 826         ah = priv->ah;
 827         common = ath9k_hw_common(ah);
 828         ath9k_set_hw_capab(priv, hw);
 829
 830         error = ath9k_init_firmware_version(priv);
 831         if (error != 0)
 832                 goto err_fw;
 833
 834         /* Initialize regulatory */
 835         error = ath_regd_init(&common->regulatory, priv->hw->wiphy,
 836                               ath9k_reg_notifier);
 837         if (error)
 838                 goto err_regd;
 839
 840         reg = &common->regulatory;
 841
 842         /* Setup TX */
 843         error = ath9k_tx_init(priv);
 844         if (error != 0)
 845                 goto err_tx;
 846
 847         /* Setup RX */
 848         error = ath9k_rx_init(priv);
 849         if (error != 0)
 850                 goto err_rx;
 851
 852 #ifdef CONFIG_MAC80211_LEDS
 853         /* must be initialized before ieee80211_register_hw */
 854         priv->led_cdev.default_trigger = ieee80211_create_tpt_led_trigger(priv->hw,
 855                 IEEE80211_TPT_LEDTRIG_FL_RADIO, ath9k_htc_tpt_blink,
 856                 ARRAY_SIZE(ath9k_htc_tpt_blink));
 857 #endif
 858
 859         /* Register with mac80211 */
 860         error = ieee80211_register_hw(hw);
 861         if (error)
 862                 goto err_register;
 863
 864         /* Handle world regulatory */
 865         if (!ath_is_world_regd(reg)) {
 866                 error = regulatory_hint(hw->wiphy, reg->alpha2);
 867                 if (error)
 868                         goto err_world;
 869         }
 870
 871         error = ath9k_htc_init_debug(priv->ah);
 872         if (error) {
 873                 ath_err(common, "Unable to create debugfs files\n");
 874                 goto err_world;
 875         }
 876
 877         ath_dbg(common, CONFIG,
 878                 "WMI:%d, BCN:%d, CAB:%d, UAPSD:%d, MGMT:%d, BE:%d, BK:%d, VI:%d, VO:%d\n",
 879                 priv->wmi_cmd_ep,
 880                 priv->beacon_ep,
 881                 priv->cab_ep,
 882                 priv->uapsd_ep,
 883                 priv->mgmt_ep,
 884                 priv->data_be_ep,
 885                 priv->data_bk_ep,
 886                 priv->data_vi_ep,
 887                 priv->data_vo_ep);
 888
 889         ath9k_hw_name(priv->ah, hw_name, sizeof(hw_name));
 890         wiphy_info(hw->wiphy, "%s\n", hw_name);
 891
 892         ath9k_init_leds(priv);
 893         ath9k_start_rfkill_poll(priv);
 894
 895         return 0;
 896
 897 err_world:
 898         ieee80211_unregister_hw(hw);
 899 err_register:
 900         ath9k_rx_cleanup(priv);
 901 err_rx:
 902         ath9k_tx_cleanup(priv);
 903 err_tx:
 904         /* Nothing */
 905 err_regd:
 906         /* Nothing */
 907 err_fw:
 908         ath9k_deinit_priv(priv);
 909 err_init:
 910         return error;
 911 }
 912
 913 int ath9k_htc_probe_device(struct htc_target *htc_handle, struct device *dev,
 914                            u16 devid, char *product, u32 drv_info)
 915 {
 916         struct ieee80211_hw *hw;
 917         struct ath9k_htc_priv *priv;
 918         int ret;
 919
 920         hw = ieee80211_alloc_hw(sizeof(struct ath9k_htc_priv), &ath9k_htc_ops);
 921         if (!hw)
 922                 return -ENOMEM;
 923
 924         priv = hw->priv;
 925         priv->hw = hw;
 926         priv->htc = htc_handle;
 927         priv->dev = dev;
 928         htc_handle->drv_priv = priv;
 929         SET_IEEE80211_DEV(hw, priv->dev);
 930
 931         ret = ath9k_htc_wait_for_target(priv);
 932         if (ret)
 933                 goto err_free;
 934
 935         priv->wmi = ath9k_init_wmi(priv);
 936         if (!priv->wmi) {
 937                 ret = -EINVAL;
 938                 goto err_free;
 939         }
 940
 941         ret = ath9k_init_htc_services(priv, devid, drv_info);
 942         if (ret)
 943                 goto err_init;
 944
 945         ret = ath9k_init_device(priv, devid, product, drv_info);
 946         if (ret)
 947                 goto err_init;
 948
 949         return 0;
 950
 951 err_init:
 952         ath9k_deinit_wmi(priv);
 953 err_free:
 954         ieee80211_free_hw(hw);
 955         return ret;
 956 }
 957
 958 void ath9k_htc_disconnect_device(struct htc_target *htc_handle, bool hotunplug)
 959 {
 960         if (htc_handle->drv_priv) {
 961
 962                 /* Check if the device has been yanked out. */
 963                 if (hotunplug)
 964                         htc_handle->drv_priv->ah->ah_flags |= AH_UNPLUGGED;
 965
 966                 ath9k_deinit_device(htc_handle->drv_priv);
 967                 ath9k_deinit_wmi(htc_handle->drv_priv);
 968                 ieee80211_free_hw(htc_handle->drv_priv->hw);
 969         }
 970 }
 971
 972 #ifdef CONFIG_PM
 973
 974 void ath9k_htc_suspend(struct htc_target *htc_handle)
 975 {
 976         ath9k_htc_setpower(htc_handle->drv_priv, ATH9K_PM_FULL_SLEEP);
 977 }
 978
 979 int ath9k_htc_resume(struct htc_target *htc_handle)
 980 {
 981         struct ath9k_htc_priv *priv = htc_handle->drv_priv;
 982         int ret;
 983
 984         ret = ath9k_htc_wait_for_target(priv);
 985         if (ret)
 986                 return ret;
 987
 988         ret = ath9k_init_htc_services(priv, priv->ah->hw_version.devid,
 989                                       priv->ah->hw_version.usbdev);
 990         return ret;
 991 }
 992 #endif
 993
 994 static int __init ath9k_htc_init(void)
 995 {
 996         if (ath9k_hif_usb_init() < 0) {
 997                 printk(KERN_ERR
 998                         "ath9k_htc: No USB devices found,"
 999                         " driver not installed.\n");
1000                 return -ENODEV;
1001         }
1002
1003         return 0;
1004 }
1005 module_init(ath9k_htc_init);
1006
1007 static void __exit ath9k_htc_exit(void)
1008 {
1009         ath9k_hif_usb_exit();
1010         printk(KERN_INFO "ath9k_htc: Driver unloaded\n");
1011 }
1012 module_exit(ath9k_htc_exit);