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 #define CHAN2G(_freq, _idx)  { \
  38         .center_freq = (_freq), \
  39         .hw_value = (_idx), \
  40         .max_power = 20, \
  41 }
  42
  43 #define CHAN5G(_freq, _idx) { \
  44         .band = IEEE80211_BAND_5GHZ, \
  45         .center_freq = (_freq), \
  46         .hw_value = (_idx), \
  47         .max_power = 20, \
  48 }
  49
  50 static struct ieee80211_channel ath9k_2ghz_channels[] = {
  51         CHAN2G(2412, 0), /* Channel 1 */
  52         CHAN2G(2417, 1), /* Channel 2 */
  53         CHAN2G(2422, 2), /* Channel 3 */
  54         CHAN2G(2427, 3), /* Channel 4 */
  55         CHAN2G(2432, 4), /* Channel 5 */
  56         CHAN2G(2437, 5), /* Channel 6 */
  57         CHAN2G(2442, 6), /* Channel 7 */
  58         CHAN2G(2447, 7), /* Channel 8 */
  59         CHAN2G(2452, 8), /* Channel 9 */
  60         CHAN2G(2457, 9), /* Channel 10 */
  61         CHAN2G(2462, 10), /* Channel 11 */
  62         CHAN2G(2467, 11), /* Channel 12 */
  63         CHAN2G(2472, 12), /* Channel 13 */
  64         CHAN2G(2484, 13), /* Channel 14 */
  65 };
  66
  67 static struct ieee80211_channel ath9k_5ghz_channels[] = {
  68         /* _We_ call this UNII 1 */
  69         CHAN5G(5180, 14), /* Channel 36 */
  70         CHAN5G(5200, 15), /* Channel 40 */
  71         CHAN5G(5220, 16), /* Channel 44 */
  72         CHAN5G(5240, 17), /* Channel 48 */
  73         /* _We_ call this UNII 2 */
  74         CHAN5G(5260, 18), /* Channel 52 */
  75         CHAN5G(5280, 19), /* Channel 56 */
  76         CHAN5G(5300, 20), /* Channel 60 */
  77         CHAN5G(5320, 21), /* Channel 64 */
  78         /* _We_ call this "Middle band" */
  79         CHAN5G(5500, 22), /* Channel 100 */
  80         CHAN5G(5520, 23), /* Channel 104 */
  81         CHAN5G(5540, 24), /* Channel 108 */
  82         CHAN5G(5560, 25), /* Channel 112 */
  83         CHAN5G(5580, 26), /* Channel 116 */
  84         CHAN5G(5600, 27), /* Channel 120 */
  85         CHAN5G(5620, 28), /* Channel 124 */
  86         CHAN5G(5640, 29), /* Channel 128 */
  87         CHAN5G(5660, 30), /* Channel 132 */
  88         CHAN5G(5680, 31), /* Channel 136 */
  89         CHAN5G(5700, 32), /* Channel 140 */
  90         /* _We_ call this UNII 3 */
  91         CHAN5G(5745, 33), /* Channel 149 */
  92         CHAN5G(5765, 34), /* Channel 153 */
  93         CHAN5G(5785, 35), /* Channel 157 */
  94         CHAN5G(5805, 36), /* Channel 161 */
  95         CHAN5G(5825, 37), /* Channel 165 */
  96 };
  97
  98 /* Atheros hardware rate code addition for short premble */
  99 #define SHPCHECK(__hw_rate, __flags) \
 100         ((__flags & IEEE80211_RATE_SHORT_PREAMBLE) ? (__hw_rate | 0x04) : 0)
 101
 102 #define RATE(_bitrate, _hw_rate, _flags) {              \
 103         .bitrate        = (_bitrate),                   \
 104         .flags          = (_flags),                     \
 105         .hw_value       = (_hw_rate),                   \
 106         .hw_value_short = (SHPCHECK(_hw_rate, _flags))  \
 107 }
 108
 109 static struct ieee80211_rate ath9k_legacy_rates[] = {
 110         RATE(10, 0x1b, 0),
 111         RATE(20, 0x1a, IEEE80211_RATE_SHORT_PREAMBLE), /* shortp : 0x1e */
 112         RATE(55, 0x19, IEEE80211_RATE_SHORT_PREAMBLE), /* shortp: 0x1d */
 113         RATE(110, 0x18, IEEE80211_RATE_SHORT_PREAMBLE), /* short: 0x1c */
 114         RATE(60, 0x0b, 0),
 115         RATE(90, 0x0f, 0),
 116         RATE(120, 0x0a, 0),
 117         RATE(180, 0x0e, 0),
 118         RATE(240, 0x09, 0),
 119         RATE(360, 0x0d, 0),
 120         RATE(480, 0x08, 0),
 121         RATE(540, 0x0c, 0),
 122 };
 123
 124 #ifdef CONFIG_MAC80211_LEDS
 125 static const struct ieee80211_tpt_blink ath9k_htc_tpt_blink[] = {
 126         { .throughput = 0 * 1024, .blink_time = 334 },
 127         { .throughput = 1 * 1024, .blink_time = 260 },
 128         { .throughput = 5 * 1024, .blink_time = 220 },
 129         { .throughput = 10 * 1024, .blink_time = 190 },
 130         { .throughput = 20 * 1024, .blink_time = 170 },
 131         { .throughput = 50 * 1024, .blink_time = 150 },
 132         { .throughput = 70 * 1024, .blink_time = 130 },
 133         { .throughput = 100 * 1024, .blink_time = 110 },
 134         { .throughput = 200 * 1024, .blink_time = 80 },
 135         { .throughput = 300 * 1024, .blink_time = 50 },
 136 };
 137 #endif
 138
 139 static int ath9k_htc_wait_for_target(struct ath9k_htc_priv *priv)
 140 {
 141         int time_left;
 142
 143         if (atomic_read(&priv->htc->tgt_ready) > 0) {
 144                 atomic_dec(&priv->htc->tgt_ready);
 145                 return 0;
 146         }
 147
 148         /* Firmware can take up to 50ms to get ready, to be safe use 1 second */
 149         time_left = wait_for_completion_timeout(&priv->htc->target_wait, HZ);
 150         if (!time_left) {
 151                 dev_err(priv->dev, "ath9k_htc: Target is unresponsive\n");
 152                 return -ETIMEDOUT;
 153         }
 154
 155         atomic_dec(&priv->htc->tgt_ready);
 156
 157         return 0;
 158 }
 159
 160 static void ath9k_deinit_priv(struct ath9k_htc_priv *priv)
 161 {
 162         ath9k_hw_deinit(priv->ah);
 163         kfree(priv->ah);
 164         priv->ah = NULL;
 165 }
 166
 167 static void ath9k_deinit_device(struct ath9k_htc_priv *priv)
 168 {
 169         struct ieee80211_hw *hw = priv->hw;
 170
 171         wiphy_rfkill_stop_polling(hw->wiphy);
 172         ath9k_deinit_leds(priv);
 173         ieee80211_unregister_hw(hw);
 174         ath9k_rx_cleanup(priv);
 175         ath9k_tx_cleanup(priv);
 176         ath9k_deinit_priv(priv);
 177 }
 178
 179 static inline int ath9k_htc_connect_svc(struct ath9k_htc_priv *priv,
 180                                         u16 service_id,
 181                                         void (*tx) (void *,
 182                                                     struct sk_buff *,
 183                                                     enum htc_endpoint_id,
 184                                                     bool txok),
 185                                         enum htc_endpoint_id *ep_id)
 186 {
 187         struct htc_service_connreq req;
 188
 189         memset(&req, 0, sizeof(struct htc_service_connreq));
 190
 191         req.service_id = service_id;
 192         req.ep_callbacks.priv = priv;
 193         req.ep_callbacks.rx = ath9k_htc_rxep;
 194         req.ep_callbacks.tx = tx;
 195
 196         return htc_connect_service(priv->htc, &req, ep_id);
 197 }
 198
 199 static int ath9k_init_htc_services(struct ath9k_htc_priv *priv, u16 devid,
 200                                    u32 drv_info)
 201 {
 202         int ret;
 203
 204         /* WMI CMD*/
 205         ret = ath9k_wmi_connect(priv->htc, priv->wmi, &priv->wmi_cmd_ep);
 206         if (ret)
 207                 goto err;
 208
 209         /* Beacon */
 210         ret = ath9k_htc_connect_svc(priv, WMI_BEACON_SVC, ath9k_htc_beaconep,
 211                                     &priv->beacon_ep);
 212         if (ret)
 213                 goto err;
 214
 215         /* CAB */
 216         ret = ath9k_htc_connect_svc(priv, WMI_CAB_SVC, ath9k_htc_txep,
 217                                     &priv->cab_ep);
 218         if (ret)
 219                 goto err;
 220
 221
 222         /* UAPSD */
 223         ret = ath9k_htc_connect_svc(priv, WMI_UAPSD_SVC, ath9k_htc_txep,
 224                                     &priv->uapsd_ep);
 225         if (ret)
 226                 goto err;
 227
 228         /* MGMT */
 229         ret = ath9k_htc_connect_svc(priv, WMI_MGMT_SVC, ath9k_htc_txep,
 230                                     &priv->mgmt_ep);
 231         if (ret)
 232                 goto err;
 233
 234         /* DATA BE */
 235         ret = ath9k_htc_connect_svc(priv, WMI_DATA_BE_SVC, ath9k_htc_txep,
 236                                     &priv->data_be_ep);
 237         if (ret)
 238                 goto err;
 239
 240         /* DATA BK */
 241         ret = ath9k_htc_connect_svc(priv, WMI_DATA_BK_SVC, ath9k_htc_txep,
 242                                     &priv->data_bk_ep);
 243         if (ret)
 244                 goto err;
 245
 246         /* DATA VI */
 247         ret = ath9k_htc_connect_svc(priv, WMI_DATA_VI_SVC, ath9k_htc_txep,
 248                                     &priv->data_vi_ep);
 249         if (ret)
 250                 goto err;
 251
 252         /* DATA VO */
 253         ret = ath9k_htc_connect_svc(priv, WMI_DATA_VO_SVC, ath9k_htc_txep,
 254                                     &priv->data_vo_ep);
 255         if (ret)
 256                 goto err;
 257
 258         /*
 259          * Setup required credits before initializing HTC.
 260          * This is a bit hacky, but, since queuing is done in
 261          * the HIF layer, shouldn't matter much.
 262          */
 263
 264         if (IS_AR7010_DEVICE(drv_info))
 265                 priv->htc->credits = 45;
 266         else
 267                 priv->htc->credits = 33;
 268
 269         ret = htc_init(priv->htc);
 270         if (ret)
 271                 goto err;
 272
 273         dev_info(priv->dev, "ath9k_htc: HTC initialized with %d credits\n",
 274                  priv->htc->credits);
 275
 276         return 0;
 277
 278 err:
 279         dev_err(priv->dev, "ath9k_htc: Unable to initialize HTC services\n");
 280         return ret;
 281 }
 282
 283 static void ath9k_reg_notifier(struct wiphy *wiphy,
 284                                struct regulatory_request *request)
 285 {
 286         struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
 287         struct ath9k_htc_priv *priv = hw->priv;
 288
 289         ath_reg_notifier_apply(wiphy, request,
 290                                ath9k_hw_regulatory(priv->ah));
 291 }
 292
 293 static unsigned int ath9k_regread(void *hw_priv, u32 reg_offset)
 294 {
 295         struct ath_hw *ah = (struct ath_hw *) hw_priv;
 296         struct ath_common *common = ath9k_hw_common(ah);
 297         struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
 298         __be32 val, reg = cpu_to_be32(reg_offset);
 299         int r;
 300
 301         r = ath9k_wmi_cmd(priv->wmi, WMI_REG_READ_CMDID,
 302                           (u8 *) &reg, sizeof(reg),
 303                           (u8 *) &val, sizeof(val),
 304                           100);
 305         if (unlikely(r)) {
 306                 ath_dbg(common, WMI, "REGISTER READ FAILED: (0x%04x, %d)\n",
 307                         reg_offset, r);
 308                 return -EIO;
 309         }
 310
 311         return be32_to_cpu(val);
 312 }
 313
 314 static void ath9k_multi_regread(void *hw_priv, u32 *addr,
 315                                 u32 *val, u16 count)
 316 {
 317         struct ath_hw *ah = (struct ath_hw *) hw_priv;
 318         struct ath_common *common = ath9k_hw_common(ah);
 319         struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
 320         __be32 tmpaddr[8];
 321         __be32 tmpval[8];
 322         int i, ret;
 323
 324        for (i = 0; i < count; i++) {
 325                tmpaddr[i] = cpu_to_be32(addr[i]);
 326        }
 327
 328        ret = ath9k_wmi_cmd(priv->wmi, WMI_REG_READ_CMDID,
 329                            (u8 *)tmpaddr , sizeof(u32) * count,
 330                            (u8 *)tmpval, sizeof(u32) * count,
 331                            100);
 332         if (unlikely(ret)) {
 333                 ath_dbg(common, WMI,
 334                         "Multiple REGISTER READ FAILED (count: %d)\n", count);
 335         }
 336
 337        for (i = 0; i < count; i++) {
 338                val[i] = be32_to_cpu(tmpval[i]);
 339        }
 340 }
 341
 342 static void ath9k_regwrite_single(void *hw_priv, u32 val, u32 reg_offset)
 343 {
 344         struct ath_hw *ah = (struct ath_hw *) hw_priv;
 345         struct ath_common *common = ath9k_hw_common(ah);
 346         struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
 347         const __be32 buf[2] = {
 348                 cpu_to_be32(reg_offset),
 349                 cpu_to_be32(val),
 350         };
 351         int r;
 352
 353         r = ath9k_wmi_cmd(priv->wmi, WMI_REG_WRITE_CMDID,
 354                           (u8 *) &buf, sizeof(buf),
 355                           (u8 *) &val, sizeof(val),
 356                           100);
 357         if (unlikely(r)) {
 358                 ath_dbg(common, WMI, "REGISTER WRITE FAILED:(0x%04x, %d)\n",
 359                         reg_offset, r);
 360         }
 361 }
 362
 363 static void ath9k_regwrite_buffer(void *hw_priv, u32 val, u32 reg_offset)
 364 {
 365         struct ath_hw *ah = (struct ath_hw *) hw_priv;
 366         struct ath_common *common = ath9k_hw_common(ah);
 367         struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
 368         u32 rsp_status;
 369         int r;
 370
 371         mutex_lock(&priv->wmi->multi_write_mutex);
 372
 373         /* Store the register/value */
 374         priv->wmi->multi_write[priv->wmi->multi_write_idx].reg =
 375                 cpu_to_be32(reg_offset);
 376         priv->wmi->multi_write[priv->wmi->multi_write_idx].val =
 377                 cpu_to_be32(val);
 378
 379         priv->wmi->multi_write_idx++;
 380
 381         /* If the buffer is full, send it out. */
 382         if (priv->wmi->multi_write_idx == MAX_CMD_NUMBER) {
 383                 r = ath9k_wmi_cmd(priv->wmi, WMI_REG_WRITE_CMDID,
 384                           (u8 *) &priv->wmi->multi_write,
 385                           sizeof(struct register_write) * priv->wmi->multi_write_idx,
 386                           (u8 *) &rsp_status, sizeof(rsp_status),
 387                           100);
 388                 if (unlikely(r)) {
 389                         ath_dbg(common, WMI,
 390                                 "REGISTER WRITE FAILED, multi len: %d\n",
 391                                 priv->wmi->multi_write_idx);
 392                 }
 393                 priv->wmi->multi_write_idx = 0;
 394         }
 395
 396         mutex_unlock(&priv->wmi->multi_write_mutex);
 397 }
 398
 399 static void ath9k_regwrite(void *hw_priv, u32 val, u32 reg_offset)
 400 {
 401         struct ath_hw *ah = (struct ath_hw *) hw_priv;
 402         struct ath_common *common = ath9k_hw_common(ah);
 403         struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
 404
 405         if (atomic_read(&priv->wmi->mwrite_cnt))
 406                 ath9k_regwrite_buffer(hw_priv, val, reg_offset);
 407         else
 408                 ath9k_regwrite_single(hw_priv, val, reg_offset);
 409 }
 410
 411 static void ath9k_enable_regwrite_buffer(void *hw_priv)
 412 {
 413         struct ath_hw *ah = (struct ath_hw *) hw_priv;
 414         struct ath_common *common = ath9k_hw_common(ah);
 415         struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
 416
 417         atomic_inc(&priv->wmi->mwrite_cnt);
 418 }
 419
 420 static void ath9k_regwrite_flush(void *hw_priv)
 421 {
 422         struct ath_hw *ah = (struct ath_hw *) hw_priv;
 423         struct ath_common *common = ath9k_hw_common(ah);
 424         struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
 425         u32 rsp_status;
 426         int r;
 427
 428         atomic_dec(&priv->wmi->mwrite_cnt);
 429
 430         mutex_lock(&priv->wmi->multi_write_mutex);
 431
 432         if (priv->wmi->multi_write_idx) {
 433                 r = ath9k_wmi_cmd(priv->wmi, WMI_REG_WRITE_CMDID,
 434                           (u8 *) &priv->wmi->multi_write,
 435                           sizeof(struct register_write) * priv->wmi->multi_write_idx,
 436                           (u8 *) &rsp_status, sizeof(rsp_status),
 437                           100);
 438                 if (unlikely(r)) {
 439                         ath_dbg(common, WMI,
 440                                 "REGISTER WRITE FAILED, multi len: %d\n",
 441                                 priv->wmi->multi_write_idx);
 442                 }
 443                 priv->wmi->multi_write_idx = 0;
 444         }
 445
 446         mutex_unlock(&priv->wmi->multi_write_mutex);
 447 }
 448
 449 static u32 ath9k_reg_rmw(void *hw_priv, u32 reg_offset, u32 set, u32 clr)
 450 {
 451         u32 val;
 452
 453         val = ath9k_regread(hw_priv, reg_offset);
 454         val &= ~clr;
 455         val |= set;
 456         ath9k_regwrite(hw_priv, val, reg_offset);
 457         return val;
 458 }
 459
 460 static void ath_usb_read_cachesize(struct ath_common *common, int *csz)
 461 {
 462         *csz = L1_CACHE_BYTES >> 2;
 463 }
 464
 465 static bool ath_usb_eeprom_read(struct ath_common *common, u32 off, u16 *data)
 466 {
 467         struct ath_hw *ah = (struct ath_hw *) common->ah;
 468
 469         (void)REG_READ(ah, AR5416_EEPROM_OFFSET + (off << AR5416_EEPROM_S));
 470
 471         if (!ath9k_hw_wait(ah,
 472                            AR_EEPROM_STATUS_DATA,
 473                            AR_EEPROM_STATUS_DATA_BUSY |
 474                            AR_EEPROM_STATUS_DATA_PROT_ACCESS, 0,
 475                            AH_WAIT_TIMEOUT))
 476                 return false;
 477
 478         *data = MS(REG_READ(ah, AR_EEPROM_STATUS_DATA),
 479                    AR_EEPROM_STATUS_DATA_VAL);
 480
 481         return true;
 482 }
 483
 484 static const struct ath_bus_ops ath9k_usb_bus_ops = {
 485         .ath_bus_type = ATH_USB,
 486         .read_cachesize = ath_usb_read_cachesize,
 487         .eeprom_read = ath_usb_eeprom_read,
 488 };
 489
 490 static void setup_ht_cap(struct ath9k_htc_priv *priv,
 491                          struct ieee80211_sta_ht_cap *ht_info)
 492 {
 493         struct ath_common *common = ath9k_hw_common(priv->ah);
 494         u8 tx_streams, rx_streams;
 495         int i;
 496
 497         ht_info->ht_supported = true;
 498         ht_info->cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
 499                        IEEE80211_HT_CAP_SM_PS |
 500                        IEEE80211_HT_CAP_SGI_40 |
 501                        IEEE80211_HT_CAP_DSSSCCK40;
 502
 503         if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_SGI_20)
 504                 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
 505
 506         ht_info->cap |= (1 << IEEE80211_HT_CAP_RX_STBC_SHIFT);
 507
 508         ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
 509         ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_8;
 510
 511         memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
 512
 513         /* ath9k_htc supports only 1 or 2 stream devices */
 514         tx_streams = ath9k_cmn_count_streams(priv->ah->txchainmask, 2);
 515         rx_streams = ath9k_cmn_count_streams(priv->ah->rxchainmask, 2);
 516
 517         ath_dbg(common, CONFIG, "TX streams %d, RX streams: %d\n",
 518                 tx_streams, rx_streams);
 519
 520         if (tx_streams != rx_streams) {
 521                 ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_RX_DIFF;
 522                 ht_info->mcs.tx_params |= ((tx_streams - 1) <<
 523                                            IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT);
 524         }
 525
 526         for (i = 0; i < rx_streams; i++)
 527                 ht_info->mcs.rx_mask[i] = 0xff;
 528
 529         ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_DEFINED;
 530 }
 531
 532 static int ath9k_init_queues(struct ath9k_htc_priv *priv)
 533 {
 534         struct ath_common *common = ath9k_hw_common(priv->ah);
 535         int i;
 536
 537         for (i = 0; i < ARRAY_SIZE(priv->hwq_map); i++)
 538                 priv->hwq_map[i] = -1;
 539
 540         priv->beaconq = ath9k_hw_beaconq_setup(priv->ah);
 541         if (priv->beaconq == -1) {
 542                 ath_err(common, "Unable to setup BEACON xmit queue\n");
 543                 goto err;
 544         }
 545
 546         priv->cabq = ath9k_htc_cabq_setup(priv);
 547         if (priv->cabq == -1) {
 548                 ath_err(common, "Unable to setup CAB xmit queue\n");
 549                 goto err;
 550         }
 551
 552         if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_BE)) {
 553                 ath_err(common, "Unable to setup xmit queue for BE traffic\n");
 554                 goto err;
 555         }
 556
 557         if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_BK)) {
 558                 ath_err(common, "Unable to setup xmit queue for BK traffic\n");
 559                 goto err;
 560         }
 561         if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_VI)) {
 562                 ath_err(common, "Unable to setup xmit queue for VI traffic\n");
 563                 goto err;
 564         }
 565         if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_VO)) {
 566                 ath_err(common, "Unable to setup xmit queue for VO traffic\n");
 567                 goto err;
 568         }
 569
 570         return 0;
 571
 572 err:
 573         return -EINVAL;
 574 }
 575
 576 static void ath9k_init_channels_rates(struct ath9k_htc_priv *priv)
 577 {
 578         if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_2GHZ) {
 579                 priv->sbands[IEEE80211_BAND_2GHZ].channels =
 580                         ath9k_2ghz_channels;
 581                 priv->sbands[IEEE80211_BAND_2GHZ].band = IEEE80211_BAND_2GHZ;
 582                 priv->sbands[IEEE80211_BAND_2GHZ].n_channels =
 583                         ARRAY_SIZE(ath9k_2ghz_channels);
 584                 priv->sbands[IEEE80211_BAND_2GHZ].bitrates = ath9k_legacy_rates;
 585                 priv->sbands[IEEE80211_BAND_2GHZ].n_bitrates =
 586                         ARRAY_SIZE(ath9k_legacy_rates);
 587         }
 588
 589         if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_5GHZ) {
 590                 priv->sbands[IEEE80211_BAND_5GHZ].channels = ath9k_5ghz_channels;
 591                 priv->sbands[IEEE80211_BAND_5GHZ].band = IEEE80211_BAND_5GHZ;
 592                 priv->sbands[IEEE80211_BAND_5GHZ].n_channels =
 593                         ARRAY_SIZE(ath9k_5ghz_channels);
 594                 priv->sbands[IEEE80211_BAND_5GHZ].bitrates =
 595                         ath9k_legacy_rates + 4;
 596                 priv->sbands[IEEE80211_BAND_5GHZ].n_bitrates =
 597                         ARRAY_SIZE(ath9k_legacy_rates) - 4;
 598         }
 599 }
 600
 601 static void ath9k_init_misc(struct ath9k_htc_priv *priv)
 602 {
 603         struct ath_common *common = ath9k_hw_common(priv->ah);
 604
 605         memcpy(common->bssidmask, ath_bcast_mac, ETH_ALEN);
 606
 607         priv->ah->opmode = NL80211_IFTYPE_STATION;
 608 }
 609
 610 static int ath9k_init_priv(struct ath9k_htc_priv *priv,
 611                            u16 devid, char *product,
 612                            u32 drv_info)
 613 {
 614         struct ath_hw *ah = NULL;
 615         struct ath_common *common;
 616         int i, ret = 0, csz = 0;
 617
 618         set_bit(OP_INVALID, &priv->op_flags);
 619
 620         ah = kzalloc(sizeof(struct ath_hw), GFP_KERNEL);
 621         if (!ah)
 622                 return -ENOMEM;
 623
 624         ah->hw_version.devid = devid;
 625         ah->hw_version.usbdev = drv_info;
 626         ah->ah_flags |= AH_USE_EEPROM;
 627         ah->reg_ops.read = ath9k_regread;
 628         ah->reg_ops.multi_read = ath9k_multi_regread;
 629         ah->reg_ops.write = ath9k_regwrite;
 630         ah->reg_ops.enable_write_buffer = ath9k_enable_regwrite_buffer;
 631         ah->reg_ops.write_flush = ath9k_regwrite_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->bus_ops = &ath9k_usb_bus_ops;
 638         common->ah = ah;
 639         common->hw = priv->hw;
 640         common->priv = priv;
 641         common->debug_mask = ath9k_debug;
 642         common->btcoex_enabled = ath9k_htc_btcoex_enable == 1;
 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         setup_timer(&priv->tx.cleanup_timer, ath9k_htc_tx_cleanup_timer,
 656                     (unsigned long)priv);
 657
 658         /*
 659          * Cache line size is used to size and align various
 660          * structures used to communicate with the hardware.
 661          */
 662         ath_read_cachesize(common, &csz);
 663         common->cachelsz = csz << 2; /* convert to bytes */
 664
 665         ret = ath9k_hw_init(ah);
 666         if (ret) {
 667                 ath_err(common,
 668                         "Unable to initialize hardware; initialization status: %d\n",
 669                         ret);
 670                 goto err_hw;
 671         }
 672
 673         ret = ath9k_init_queues(priv);
 674         if (ret)
 675                 goto err_queues;
 676
 677         for (i = 0; i < ATH9K_HTC_MAX_BCN_VIF; i++)
 678                 priv->cur_beacon_conf.bslot[i] = NULL;
 679
 680         ath9k_cmn_init_crypto(ah);
 681         ath9k_init_channels_rates(priv);
 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                                  BIT(NL80211_IFTYPE_P2P_GO) },
 702 };
 703
 704 static const struct ieee80211_iface_combination if_comb = {
 705         .limits = if_limits,
 706         .n_limits = ARRAY_SIZE(if_limits),
 707         .max_interfaces = 2,
 708         .num_different_channels = 1,
 709 };
 710
 711 static void ath9k_set_hw_capab(struct ath9k_htc_priv *priv,
 712                                struct ieee80211_hw *hw)
 713 {
 714         struct ath_common *common = ath9k_hw_common(priv->ah);
 715
 716         hw->flags = IEEE80211_HW_SIGNAL_DBM |
 717                 IEEE80211_HW_AMPDU_AGGREGATION |
 718                 IEEE80211_HW_SPECTRUM_MGMT |
 719                 IEEE80211_HW_HAS_RATE_CONTROL |
 720                 IEEE80211_HW_RX_INCLUDES_FCS |
 721                 IEEE80211_HW_SUPPORTS_PS |
 722                 IEEE80211_HW_PS_NULLFUNC_STACK |
 723                 IEEE80211_HW_REPORTS_TX_ACK_STATUS |
 724                 IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING;
 725
 726         hw->wiphy->interface_modes =
 727                 BIT(NL80211_IFTYPE_STATION) |
 728                 BIT(NL80211_IFTYPE_ADHOC) |
 729                 BIT(NL80211_IFTYPE_AP) |
 730                 BIT(NL80211_IFTYPE_P2P_GO) |
 731                 BIT(NL80211_IFTYPE_P2P_CLIENT);
 732
 733         hw->wiphy->iface_combinations = &if_comb;
 734         hw->wiphy->n_iface_combinations = 1;
 735
 736         hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
 737
 738         hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN |
 739                             WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
 740
 741         hw->queues = 4;
 742         hw->channel_change_time = 5000;
 743         hw->max_listen_interval = 1;
 744
 745         hw->vif_data_size = sizeof(struct ath9k_htc_vif);
 746         hw->sta_data_size = sizeof(struct ath9k_htc_sta);
 747
 748         /* tx_frame_hdr is larger than tx_mgmt_hdr anyway */
 749         hw->extra_tx_headroom = sizeof(struct tx_frame_hdr) +
 750                 sizeof(struct htc_frame_hdr) + 4;
 751
 752         if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_2GHZ)
 753                 hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
 754                         &priv->sbands[IEEE80211_BAND_2GHZ];
 755         if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_5GHZ)
 756                 hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
 757                         &priv->sbands[IEEE80211_BAND_5GHZ];
 758
 759         if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_HT) {
 760                 if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_2GHZ)
 761                         setup_ht_cap(priv,
 762                                      &priv->sbands[IEEE80211_BAND_2GHZ].ht_cap);
 763                 if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_5GHZ)
 764                         setup_ht_cap(priv,
 765                                      &priv->sbands[IEEE80211_BAND_5GHZ].ht_cap);
 766         }
 767
 768         SET_IEEE80211_PERM_ADDR(hw, common->macaddr);
 769 }
 770
 771 static int ath9k_init_firmware_version(struct ath9k_htc_priv *priv)
 772 {
 773         struct ieee80211_hw *hw = priv->hw;
 774         struct wmi_fw_version cmd_rsp;
 775         int ret;
 776
 777         memset(&cmd_rsp, 0, sizeof(cmd_rsp));
 778
 779         WMI_CMD(WMI_GET_FW_VERSION);
 780         if (ret)
 781                 return -EINVAL;
 782
 783         priv->fw_version_major = be16_to_cpu(cmd_rsp.major);
 784         priv->fw_version_minor = be16_to_cpu(cmd_rsp.minor);
 785
 786         snprintf(hw->wiphy->fw_version, sizeof(hw->wiphy->fw_version), "%d.%d",
 787                  priv->fw_version_major,
 788                  priv->fw_version_minor);
 789
 790         dev_info(priv->dev, "ath9k_htc: FW Version: %d.%d\n",
 791                  priv->fw_version_major,
 792                  priv->fw_version_minor);
 793
 794         /*
 795          * Check if the available FW matches the driver's
 796          * required version.
 797          */
 798         if (priv->fw_version_major != MAJOR_VERSION_REQ ||
 799             priv->fw_version_minor < MINOR_VERSION_REQ) {
 800                 dev_err(priv->dev, "ath9k_htc: Please upgrade to FW version %d.%d\n",
 801                         MAJOR_VERSION_REQ, MINOR_VERSION_REQ);
 802                 return -EINVAL;
 803         }
 804
 805         return 0;
 806 }
 807
 808 static int ath9k_init_device(struct ath9k_htc_priv *priv,
 809                              u16 devid, char *product, u32 drv_info)
 810 {
 811         struct ieee80211_hw *hw = priv->hw;
 812         struct ath_common *common;
 813         struct ath_hw *ah;
 814         int error = 0;
 815         struct ath_regulatory *reg;
 816         char hw_name[64];
 817
 818         /* Bring up device */
 819         error = ath9k_init_priv(priv, devid, product, drv_info);
 820         if (error != 0)
 821                 goto err_init;
 822
 823         ah = priv->ah;
 824         common = ath9k_hw_common(ah);
 825         ath9k_set_hw_capab(priv, hw);
 826
 827         error = ath9k_init_firmware_version(priv);
 828         if (error != 0)
 829                 goto err_fw;
 830
 831         /* Initialize regulatory */
 832         error = ath_regd_init(&common->regulatory, priv->hw->wiphy,
 833                               ath9k_reg_notifier);
 834         if (error)
 835                 goto err_regd;
 836
 837         reg = &common->regulatory;
 838
 839         /* Setup TX */
 840         error = ath9k_tx_init(priv);
 841         if (error != 0)
 842                 goto err_tx;
 843
 844         /* Setup RX */
 845         error = ath9k_rx_init(priv);
 846         if (error != 0)
 847                 goto err_rx;
 848
 849         ath9k_hw_disable(priv->ah);
 850 #ifdef CONFIG_MAC80211_LEDS
 851         /* must be initialized before ieee80211_register_hw */
 852         priv->led_cdev.default_trigger = ieee80211_create_tpt_led_trigger(priv->hw,
 853                 IEEE80211_TPT_LEDTRIG_FL_RADIO, ath9k_htc_tpt_blink,
 854                 ARRAY_SIZE(ath9k_htc_tpt_blink));
 855 #endif
 856
 857         /* Register with mac80211 */
 858         error = ieee80211_register_hw(hw);
 859         if (error)
 860                 goto err_register;
 861
 862         /* Handle world regulatory */
 863         if (!ath_is_world_regd(reg)) {
 864                 error = regulatory_hint(hw->wiphy, reg->alpha2);
 865                 if (error)
 866                         goto err_world;
 867         }
 868
 869         error = ath9k_htc_init_debug(priv->ah);
 870         if (error) {
 871                 ath_err(common, "Unable to create debugfs files\n");
 872                 goto err_world;
 873         }
 874
 875         ath_dbg(common, CONFIG,
 876                 "WMI:%d, BCN:%d, CAB:%d, UAPSD:%d, MGMT:%d, BE:%d, BK:%d, VI:%d, VO:%d\n",
 877                 priv->wmi_cmd_ep,
 878                 priv->beacon_ep,
 879                 priv->cab_ep,
 880                 priv->uapsd_ep,
 881                 priv->mgmt_ep,
 882                 priv->data_be_ep,
 883                 priv->data_bk_ep,
 884                 priv->data_vi_ep,
 885                 priv->data_vo_ep);
 886
 887         ath9k_hw_name(priv->ah, hw_name, sizeof(hw_name));
 888         wiphy_info(hw->wiphy, "%s\n", hw_name);
 889
 890         ath9k_init_leds(priv);
 891         ath9k_start_rfkill_poll(priv);
 892
 893         return 0;
 894
 895 err_world:
 896         ieee80211_unregister_hw(hw);
 897 err_register:
 898         ath9k_rx_cleanup(priv);
 899 err_rx:
 900         ath9k_tx_cleanup(priv);
 901 err_tx:
 902         /* Nothing */
 903 err_regd:
 904         /* Nothing */
 905 err_fw:
 906         ath9k_deinit_priv(priv);
 907 err_init:
 908         return error;
 909 }
 910
 911 int ath9k_htc_probe_device(struct htc_target *htc_handle, struct device *dev,
 912                            u16 devid, char *product, u32 drv_info)
 913 {
 914         struct ieee80211_hw *hw;
 915         struct ath9k_htc_priv *priv;
 916         int ret;
 917
 918         hw = ieee80211_alloc_hw(sizeof(struct ath9k_htc_priv), &ath9k_htc_ops);
 919         if (!hw)
 920                 return -ENOMEM;
 921
 922         priv = hw->priv;
 923         priv->hw = hw;
 924         priv->htc = htc_handle;
 925         priv->dev = dev;
 926         htc_handle->drv_priv = priv;
 927         SET_IEEE80211_DEV(hw, priv->dev);
 928
 929         ret = ath9k_htc_wait_for_target(priv);
 930         if (ret)
 931                 goto err_free;
 932
 933         priv->wmi = ath9k_init_wmi(priv);
 934         if (!priv->wmi) {
 935                 ret = -EINVAL;
 936                 goto err_free;
 937         }
 938
 939         ret = ath9k_init_htc_services(priv, devid, drv_info);
 940         if (ret)
 941                 goto err_init;
 942
 943         ret = ath9k_init_device(priv, devid, product, drv_info);
 944         if (ret)
 945                 goto err_init;
 946
 947         return 0;
 948
 949 err_init:
 950         ath9k_deinit_wmi(priv);
 951 err_free:
 952         ieee80211_free_hw(hw);
 953         return ret;
 954 }
 955
 956 void ath9k_htc_disconnect_device(struct htc_target *htc_handle, bool hotunplug)
 957 {
 958         if (htc_handle->drv_priv) {
 959
 960                 /* Check if the device has been yanked out. */
 961                 if (hotunplug)
 962                         htc_handle->drv_priv->ah->ah_flags |= AH_UNPLUGGED;
 963
 964                 ath9k_deinit_device(htc_handle->drv_priv);
 965                 ath9k_deinit_wmi(htc_handle->drv_priv);
 966                 ieee80211_free_hw(htc_handle->drv_priv->hw);
 967         }
 968 }
 969
 970 #ifdef CONFIG_PM
 971
 972 void ath9k_htc_suspend(struct htc_target *htc_handle)
 973 {
 974         ath9k_htc_setpower(htc_handle->drv_priv, ATH9K_PM_FULL_SLEEP);
 975 }
 976
 977 int ath9k_htc_resume(struct htc_target *htc_handle)
 978 {
 979         struct ath9k_htc_priv *priv = htc_handle->drv_priv;
 980         int ret;
 981
 982         ret = ath9k_htc_wait_for_target(priv);
 983         if (ret)
 984                 return ret;
 985
 986         ret = ath9k_init_htc_services(priv, priv->ah->hw_version.devid,
 987                                       priv->ah->hw_version.usbdev);
 988         return ret;
 989 }
 990 #endif
 991
 992 static int __init ath9k_htc_init(void)
 993 {
 994         if (ath9k_hif_usb_init() < 0) {
 995                 pr_err("No USB devices found, driver not installed\n");
 996                 return -ENODEV;
 997         }
 998
 999         return 0;
1000 }
1001 module_init(ath9k_htc_init);
1002
1003 static void __exit ath9k_htc_exit(void)
1004 {
1005         ath9k_hif_usb_exit();
1006         pr_info("Driver unloaded\n");
1007 }
1008 module_exit(ath9k_htc_exit);