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, ATH_DBG_WMI,
 303                         "REGISTER READ FAILED: (0x%04x, %d)\n",
 304                         reg_offset, r);
 305                 return -EIO;
 306         }
 307
 308         return be32_to_cpu(val);
 309 }
 310
 311 static void ath9k_multi_regread(void *hw_priv, u32 *addr,
 312                                 u32 *val, u16 count)
 313 {
 314         struct ath_hw *ah = (struct ath_hw *) hw_priv;
 315         struct ath_common *common = ath9k_hw_common(ah);
 316         struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
 317         __be32 tmpaddr[8];
 318         __be32 tmpval[8];
 319         int i, ret;
 320
 321        for (i = 0; i < count; i++) {
 322                tmpaddr[i] = cpu_to_be32(addr[i]);
 323        }
 324
 325        ret = ath9k_wmi_cmd(priv->wmi, WMI_REG_READ_CMDID,
 326                            (u8 *)tmpaddr , sizeof(u32) * count,
 327                            (u8 *)tmpval, sizeof(u32) * count,
 328                            100);
 329         if (unlikely(ret)) {
 330                 ath_dbg(common, ATH_DBG_WMI,
 331                         "Multiple REGISTER READ FAILED (count: %d)\n", count);
 332         }
 333
 334        for (i = 0; i < count; i++) {
 335                val[i] = be32_to_cpu(tmpval[i]);
 336        }
 337 }
 338
 339 static void ath9k_regwrite_single(void *hw_priv, u32 val, u32 reg_offset)
 340 {
 341         struct ath_hw *ah = (struct ath_hw *) hw_priv;
 342         struct ath_common *common = ath9k_hw_common(ah);
 343         struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
 344         const __be32 buf[2] = {
 345                 cpu_to_be32(reg_offset),
 346                 cpu_to_be32(val),
 347         };
 348         int r;
 349
 350         r = ath9k_wmi_cmd(priv->wmi, WMI_REG_WRITE_CMDID,
 351                           (u8 *) &buf, sizeof(buf),
 352                           (u8 *) &val, sizeof(val),
 353                           100);
 354         if (unlikely(r)) {
 355                 ath_dbg(common, ATH_DBG_WMI,
 356                         "REGISTER WRITE FAILED:(0x%04x, %d)\n",
 357                         reg_offset, r);
 358         }
 359 }
 360
 361 static void ath9k_regwrite_buffer(void *hw_priv, u32 val, u32 reg_offset)
 362 {
 363         struct ath_hw *ah = (struct ath_hw *) hw_priv;
 364         struct ath_common *common = ath9k_hw_common(ah);
 365         struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
 366         u32 rsp_status;
 367         int r;
 368
 369         mutex_lock(&priv->wmi->multi_write_mutex);
 370
 371         /* Store the register/value */
 372         priv->wmi->multi_write[priv->wmi->multi_write_idx].reg =
 373                 cpu_to_be32(reg_offset);
 374         priv->wmi->multi_write[priv->wmi->multi_write_idx].val =
 375                 cpu_to_be32(val);
 376
 377         priv->wmi->multi_write_idx++;
 378
 379         /* If the buffer is full, send it out. */
 380         if (priv->wmi->multi_write_idx == MAX_CMD_NUMBER) {
 381                 r = ath9k_wmi_cmd(priv->wmi, WMI_REG_WRITE_CMDID,
 382                           (u8 *) &priv->wmi->multi_write,
 383                           sizeof(struct register_write) * priv->wmi->multi_write_idx,
 384                           (u8 *) &rsp_status, sizeof(rsp_status),
 385                           100);
 386                 if (unlikely(r)) {
 387                         ath_dbg(common, ATH_DBG_WMI,
 388                                 "REGISTER WRITE FAILED, multi len: %d\n",
 389                                 priv->wmi->multi_write_idx);
 390                 }
 391                 priv->wmi->multi_write_idx = 0;
 392         }
 393
 394         mutex_unlock(&priv->wmi->multi_write_mutex);
 395 }
 396
 397 static void ath9k_regwrite(void *hw_priv, u32 val, u32 reg_offset)
 398 {
 399         struct ath_hw *ah = (struct ath_hw *) hw_priv;
 400         struct ath_common *common = ath9k_hw_common(ah);
 401         struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
 402
 403         if (atomic_read(&priv->wmi->mwrite_cnt))
 404                 ath9k_regwrite_buffer(hw_priv, val, reg_offset);
 405         else
 406                 ath9k_regwrite_single(hw_priv, val, reg_offset);
 407 }
 408
 409 static void ath9k_enable_regwrite_buffer(void *hw_priv)
 410 {
 411         struct ath_hw *ah = (struct ath_hw *) hw_priv;
 412         struct ath_common *common = ath9k_hw_common(ah);
 413         struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
 414
 415         atomic_inc(&priv->wmi->mwrite_cnt);
 416 }
 417
 418 static void ath9k_regwrite_flush(void *hw_priv)
 419 {
 420         struct ath_hw *ah = (struct ath_hw *) hw_priv;
 421         struct ath_common *common = ath9k_hw_common(ah);
 422         struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
 423         u32 rsp_status;
 424         int r;
 425
 426         atomic_dec(&priv->wmi->mwrite_cnt);
 427
 428         mutex_lock(&priv->wmi->multi_write_mutex);
 429
 430         if (priv->wmi->multi_write_idx) {
 431                 r = ath9k_wmi_cmd(priv->wmi, WMI_REG_WRITE_CMDID,
 432                           (u8 *) &priv->wmi->multi_write,
 433                           sizeof(struct register_write) * priv->wmi->multi_write_idx,
 434                           (u8 *) &rsp_status, sizeof(rsp_status),
 435                           100);
 436                 if (unlikely(r)) {
 437                         ath_dbg(common, ATH_DBG_WMI,
 438                                 "REGISTER WRITE FAILED, multi len: %d\n",
 439                                 priv->wmi->multi_write_idx);
 440                 }
 441                 priv->wmi->multi_write_idx = 0;
 442         }
 443
 444         mutex_unlock(&priv->wmi->multi_write_mutex);
 445 }
 446
 447 static u32 ath9k_reg_rmw(void *hw_priv, u32 reg_offset, u32 set, u32 clr)
 448 {
 449         u32 val;
 450
 451         val = ath9k_regread(hw_priv, reg_offset);
 452         val &= ~clr;
 453         val |= set;
 454         ath9k_regwrite(hw_priv, val, reg_offset);
 455         return val;
 456 }
 457
 458 static void ath_usb_read_cachesize(struct ath_common *common, int *csz)
 459 {
 460         *csz = L1_CACHE_BYTES >> 2;
 461 }
 462
 463 static bool ath_usb_eeprom_read(struct ath_common *common, u32 off, u16 *data)
 464 {
 465         struct ath_hw *ah = (struct ath_hw *) common->ah;
 466
 467         (void)REG_READ(ah, AR5416_EEPROM_OFFSET + (off << AR5416_EEPROM_S));
 468
 469         if (!ath9k_hw_wait(ah,
 470                            AR_EEPROM_STATUS_DATA,
 471                            AR_EEPROM_STATUS_DATA_BUSY |
 472                            AR_EEPROM_STATUS_DATA_PROT_ACCESS, 0,
 473                            AH_WAIT_TIMEOUT))
 474                 return false;
 475
 476         *data = MS(REG_READ(ah, AR_EEPROM_STATUS_DATA),
 477                    AR_EEPROM_STATUS_DATA_VAL);
 478
 479         return true;
 480 }
 481
 482 static const struct ath_bus_ops ath9k_usb_bus_ops = {
 483         .ath_bus_type = ATH_USB,
 484         .read_cachesize = ath_usb_read_cachesize,
 485         .eeprom_read = ath_usb_eeprom_read,
 486 };
 487
 488 static void setup_ht_cap(struct ath9k_htc_priv *priv,
 489                          struct ieee80211_sta_ht_cap *ht_info)
 490 {
 491         struct ath_common *common = ath9k_hw_common(priv->ah);
 492         u8 tx_streams, rx_streams;
 493         int i;
 494
 495         ht_info->ht_supported = true;
 496         ht_info->cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
 497                        IEEE80211_HT_CAP_SM_PS |
 498                        IEEE80211_HT_CAP_SGI_40 |
 499                        IEEE80211_HT_CAP_DSSSCCK40;
 500
 501         if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_SGI_20)
 502                 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
 503
 504         ht_info->cap |= (1 << IEEE80211_HT_CAP_RX_STBC_SHIFT);
 505
 506         ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
 507         ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_8;
 508
 509         memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
 510
 511         /* ath9k_htc supports only 1 or 2 stream devices */
 512         tx_streams = ath9k_cmn_count_streams(common->tx_chainmask, 2);
 513         rx_streams = ath9k_cmn_count_streams(common->rx_chainmask, 2);
 514
 515         ath_dbg(common, ATH_DBG_CONFIG,
 516                 "TX streams %d, RX streams: %d\n",
 517                 tx_streams, rx_streams);
 518
 519         if (tx_streams != rx_streams) {
 520                 ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_RX_DIFF;
 521                 ht_info->mcs.tx_params |= ((tx_streams - 1) <<
 522                                            IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT);
 523         }
 524
 525         for (i = 0; i < rx_streams; i++)
 526                 ht_info->mcs.rx_mask[i] = 0xff;
 527
 528         ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_DEFINED;
 529 }
 530
 531 static int ath9k_init_queues(struct ath9k_htc_priv *priv)
 532 {
 533         struct ath_common *common = ath9k_hw_common(priv->ah);
 534         int i;
 535
 536         for (i = 0; i < ARRAY_SIZE(priv->hwq_map); i++)
 537                 priv->hwq_map[i] = -1;
 538
 539         priv->beaconq = ath9k_hw_beaconq_setup(priv->ah);
 540         if (priv->beaconq == -1) {
 541                 ath_err(common, "Unable to setup BEACON xmit queue\n");
 542                 goto err;
 543         }
 544
 545         priv->cabq = ath9k_htc_cabq_setup(priv);
 546         if (priv->cabq == -1) {
 547                 ath_err(common, "Unable to setup CAB xmit queue\n");
 548                 goto err;
 549         }
 550
 551         if (!ath9k_htc_txq_setup(priv, WME_AC_BE)) {
 552                 ath_err(common, "Unable to setup xmit queue for BE traffic\n");
 553                 goto err;
 554         }
 555
 556         if (!ath9k_htc_txq_setup(priv, WME_AC_BK)) {
 557                 ath_err(common, "Unable to setup xmit queue for BK traffic\n");
 558                 goto err;
 559         }
 560         if (!ath9k_htc_txq_setup(priv, WME_AC_VI)) {
 561                 ath_err(common, "Unable to setup xmit queue for VI traffic\n");
 562                 goto err;
 563         }
 564         if (!ath9k_htc_txq_setup(priv, WME_AC_VO)) {
 565                 ath_err(common, "Unable to setup xmit queue for VO traffic\n");
 566                 goto err;
 567         }
 568
 569         return 0;
 570
 571 err:
 572         return -EINVAL;
 573 }
 574
 575 static void ath9k_init_crypto(struct ath9k_htc_priv *priv)
 576 {
 577         struct ath_common *common = ath9k_hw_common(priv->ah);
 578         int i = 0;
 579
 580         /* Get the hardware key cache size. */
 581         common->keymax = AR_KEYTABLE_SIZE;
 582
 583         if (priv->ah->misc_mode & AR_PCU_MIC_NEW_LOC_ENA)
 584                 common->crypt_caps |= ATH_CRYPT_CAP_MIC_COMBINED;
 585
 586         /*
 587          * Reset the key cache since some parts do not
 588          * reset the contents on initial power up.
 589          */
 590         for (i = 0; i < common->keymax; i++)
 591                 ath_hw_keyreset(common, (u16) i);
 592 }
 593
 594 static void ath9k_init_channels_rates(struct ath9k_htc_priv *priv)
 595 {
 596         if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_2GHZ) {
 597                 priv->sbands[IEEE80211_BAND_2GHZ].channels =
 598                         ath9k_2ghz_channels;
 599                 priv->sbands[IEEE80211_BAND_2GHZ].band = IEEE80211_BAND_2GHZ;
 600                 priv->sbands[IEEE80211_BAND_2GHZ].n_channels =
 601                         ARRAY_SIZE(ath9k_2ghz_channels);
 602                 priv->sbands[IEEE80211_BAND_2GHZ].bitrates = ath9k_legacy_rates;
 603                 priv->sbands[IEEE80211_BAND_2GHZ].n_bitrates =
 604                         ARRAY_SIZE(ath9k_legacy_rates);
 605         }
 606
 607         if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_5GHZ) {
 608                 priv->sbands[IEEE80211_BAND_5GHZ].channels = ath9k_5ghz_channels;
 609                 priv->sbands[IEEE80211_BAND_5GHZ].band = IEEE80211_BAND_5GHZ;
 610                 priv->sbands[IEEE80211_BAND_5GHZ].n_channels =
 611                         ARRAY_SIZE(ath9k_5ghz_channels);
 612                 priv->sbands[IEEE80211_BAND_5GHZ].bitrates =
 613                         ath9k_legacy_rates + 4;
 614                 priv->sbands[IEEE80211_BAND_5GHZ].n_bitrates =
 615                         ARRAY_SIZE(ath9k_legacy_rates) - 4;
 616         }
 617 }
 618
 619 static void ath9k_init_misc(struct ath9k_htc_priv *priv)
 620 {
 621         struct ath_common *common = ath9k_hw_common(priv->ah);
 622
 623         common->tx_chainmask = priv->ah->caps.tx_chainmask;
 624         common->rx_chainmask = priv->ah->caps.rx_chainmask;
 625
 626         memcpy(common->bssidmask, ath_bcast_mac, ETH_ALEN);
 627
 628         priv->ah->opmode = NL80211_IFTYPE_STATION;
 629 }
 630
 631 static void ath9k_init_btcoex(struct ath9k_htc_priv *priv)
 632 {
 633         int qnum;
 634
 635         switch (priv->ah->btcoex_hw.scheme) {
 636         case ATH_BTCOEX_CFG_NONE:
 637                 break;
 638         case ATH_BTCOEX_CFG_3WIRE:
 639                 priv->ah->btcoex_hw.btactive_gpio = 7;
 640                 priv->ah->btcoex_hw.btpriority_gpio = 6;
 641                 priv->ah->btcoex_hw.wlanactive_gpio = 8;
 642                 priv->btcoex.bt_stomp_type = ATH_BTCOEX_STOMP_LOW;
 643                 ath9k_hw_btcoex_init_3wire(priv->ah);
 644                 ath_htc_init_btcoex_work(priv);
 645                 qnum = priv->hwq_map[WME_AC_BE];
 646                 ath9k_hw_init_btcoex_hw(priv->ah, qnum);
 647                 break;
 648         default:
 649                 WARN_ON(1);
 650                 break;
 651         }
 652 }
 653
 654 static int ath9k_init_priv(struct ath9k_htc_priv *priv,
 655                            u16 devid, char *product,
 656                            u32 drv_info)
 657 {
 658         struct ath_hw *ah = NULL;
 659         struct ath_common *common;
 660         int i, ret = 0, csz = 0;
 661
 662         priv->op_flags |= OP_INVALID;
 663
 664         ah = kzalloc(sizeof(struct ath_hw), GFP_KERNEL);
 665         if (!ah)
 666                 return -ENOMEM;
 667
 668         ah->hw_version.devid = devid;
 669         ah->hw_version.subsysid = 0; /* FIXME */
 670         ah->hw_version.usbdev = drv_info;
 671         ah->ah_flags |= AH_USE_EEPROM;
 672         ah->reg_ops.read = ath9k_regread;
 673         ah->reg_ops.multi_read = ath9k_multi_regread;
 674         ah->reg_ops.write = ath9k_regwrite;
 675         ah->reg_ops.enable_write_buffer = ath9k_enable_regwrite_buffer;
 676         ah->reg_ops.write_flush = ath9k_regwrite_flush;
 677         ah->reg_ops.rmw = ath9k_reg_rmw;
 678         priv->ah = ah;
 679
 680         common = ath9k_hw_common(ah);
 681         common->ops = &ah->reg_ops;
 682         common->bus_ops = &ath9k_usb_bus_ops;
 683         common->ah = ah;
 684         common->hw = priv->hw;
 685         common->priv = priv;
 686         common->debug_mask = ath9k_debug;
 687
 688         spin_lock_init(&priv->beacon_lock);
 689         spin_lock_init(&priv->tx.tx_lock);
 690         mutex_init(&priv->mutex);
 691         mutex_init(&priv->htc_pm_lock);
 692         tasklet_init(&priv->rx_tasklet, ath9k_rx_tasklet,
 693                      (unsigned long)priv);
 694         tasklet_init(&priv->tx_failed_tasklet, ath9k_tx_failed_tasklet,
 695                      (unsigned long)priv);
 696         INIT_DELAYED_WORK(&priv->ani_work, ath9k_htc_ani_work);
 697         INIT_WORK(&priv->ps_work, ath9k_ps_work);
 698         INIT_WORK(&priv->fatal_work, ath9k_fatal_work);
 699         setup_timer(&priv->tx.cleanup_timer, ath9k_htc_tx_cleanup_timer,
 700                     (unsigned long)priv);
 701
 702         /*
 703          * Cache line size is used to size and align various
 704          * structures used to communicate with the hardware.
 705          */
 706         ath_read_cachesize(common, &csz);
 707         common->cachelsz = csz << 2; /* convert to bytes */
 708
 709         ret = ath9k_hw_init(ah);
 710         if (ret) {
 711                 ath_err(common,
 712                         "Unable to initialize hardware; initialization status: %d\n",
 713                         ret);
 714                 goto err_hw;
 715         }
 716
 717         ret = ath9k_init_queues(priv);
 718         if (ret)
 719                 goto err_queues;
 720
 721         for (i = 0; i < ATH9K_HTC_MAX_BCN_VIF; i++)
 722                 priv->cur_beacon_conf.bslot[i] = NULL;
 723
 724         ath9k_init_crypto(priv);
 725         ath9k_init_channels_rates(priv);
 726         ath9k_init_misc(priv);
 727
 728         if (product && strncmp(product, ATH_HTC_BTCOEX_PRODUCT_ID, 5) == 0) {
 729                 ah->btcoex_hw.scheme = ATH_BTCOEX_CFG_3WIRE;
 730                 ath9k_init_btcoex(priv);
 731         }
 732
 733         return 0;
 734
 735 err_queues:
 736         ath9k_hw_deinit(ah);
 737 err_hw:
 738
 739         kfree(ah);
 740         priv->ah = NULL;
 741
 742         return ret;
 743 }
 744
 745 static void ath9k_set_hw_capab(struct ath9k_htc_priv *priv,
 746                                struct ieee80211_hw *hw)
 747 {
 748         struct ath_common *common = ath9k_hw_common(priv->ah);
 749
 750         hw->flags = IEEE80211_HW_SIGNAL_DBM |
 751                 IEEE80211_HW_AMPDU_AGGREGATION |
 752                 IEEE80211_HW_SPECTRUM_MGMT |
 753                 IEEE80211_HW_HAS_RATE_CONTROL |
 754                 IEEE80211_HW_RX_INCLUDES_FCS |
 755                 IEEE80211_HW_SUPPORTS_PS |
 756                 IEEE80211_HW_PS_NULLFUNC_STACK |
 757                 IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING;
 758
 759         hw->wiphy->interface_modes =
 760                 BIT(NL80211_IFTYPE_STATION) |
 761                 BIT(NL80211_IFTYPE_ADHOC) |
 762                 BIT(NL80211_IFTYPE_AP) |
 763                 BIT(NL80211_IFTYPE_P2P_GO) |
 764                 BIT(NL80211_IFTYPE_P2P_CLIENT);
 765
 766         hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
 767
 768         hw->queues = 4;
 769         hw->channel_change_time = 5000;
 770         hw->max_listen_interval = 10;
 771
 772         hw->vif_data_size = sizeof(struct ath9k_htc_vif);
 773         hw->sta_data_size = sizeof(struct ath9k_htc_sta);
 774
 775         /* tx_frame_hdr is larger than tx_mgmt_hdr anyway */
 776         hw->extra_tx_headroom = sizeof(struct tx_frame_hdr) +
 777                 sizeof(struct htc_frame_hdr) + 4;
 778
 779         if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_2GHZ)
 780                 hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
 781                         &priv->sbands[IEEE80211_BAND_2GHZ];
 782         if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_5GHZ)
 783                 hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
 784                         &priv->sbands[IEEE80211_BAND_5GHZ];
 785
 786         if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_HT) {
 787                 if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_2GHZ)
 788                         setup_ht_cap(priv,
 789                                      &priv->sbands[IEEE80211_BAND_2GHZ].ht_cap);
 790                 if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_5GHZ)
 791                         setup_ht_cap(priv,
 792                                      &priv->sbands[IEEE80211_BAND_5GHZ].ht_cap);
 793         }
 794
 795         SET_IEEE80211_PERM_ADDR(hw, common->macaddr);
 796 }
 797
 798 static int ath9k_init_firmware_version(struct ath9k_htc_priv *priv)
 799 {
 800         struct ieee80211_hw *hw = priv->hw;
 801         struct wmi_fw_version cmd_rsp;
 802         int ret;
 803
 804         memset(&cmd_rsp, 0, sizeof(cmd_rsp));
 805
 806         WMI_CMD(WMI_GET_FW_VERSION);
 807         if (ret)
 808                 return -EINVAL;
 809
 810         priv->fw_version_major = be16_to_cpu(cmd_rsp.major);
 811         priv->fw_version_minor = be16_to_cpu(cmd_rsp.minor);
 812
 813         snprintf(hw->wiphy->fw_version, ETHTOOL_BUSINFO_LEN, "%d.%d",
 814                  priv->fw_version_major,
 815                  priv->fw_version_minor);
 816
 817         dev_info(priv->dev, "ath9k_htc: FW Version: %d.%d\n",
 818                  priv->fw_version_major,
 819                  priv->fw_version_minor);
 820
 821         /*
 822          * Check if the available FW matches the driver's
 823          * required version.
 824          */
 825         if (priv->fw_version_major != MAJOR_VERSION_REQ ||
 826             priv->fw_version_minor != MINOR_VERSION_REQ) {
 827                 dev_err(priv->dev, "ath9k_htc: Please upgrade to FW version %d.%d\n",
 828                         MAJOR_VERSION_REQ, MINOR_VERSION_REQ);
 829                 return -EINVAL;
 830         }
 831
 832         return 0;
 833 }
 834
 835 static int ath9k_init_device(struct ath9k_htc_priv *priv,
 836                              u16 devid, char *product, u32 drv_info)
 837 {
 838         struct ieee80211_hw *hw = priv->hw;
 839         struct ath_common *common;
 840         struct ath_hw *ah;
 841         int error = 0;
 842         struct ath_regulatory *reg;
 843         char hw_name[64];
 844
 845         /* Bring up device */
 846         error = ath9k_init_priv(priv, devid, product, drv_info);
 847         if (error != 0)
 848                 goto err_init;
 849
 850         ah = priv->ah;
 851         common = ath9k_hw_common(ah);
 852         ath9k_set_hw_capab(priv, hw);
 853
 854         error = ath9k_init_firmware_version(priv);
 855         if (error != 0)
 856                 goto err_fw;
 857
 858         /* Initialize regulatory */
 859         error = ath_regd_init(&common->regulatory, priv->hw->wiphy,
 860                               ath9k_reg_notifier);
 861         if (error)
 862                 goto err_regd;
 863
 864         reg = &common->regulatory;
 865
 866         /* Setup TX */
 867         error = ath9k_tx_init(priv);
 868         if (error != 0)
 869                 goto err_tx;
 870
 871         /* Setup RX */
 872         error = ath9k_rx_init(priv);
 873         if (error != 0)
 874                 goto err_rx;
 875
 876 #ifdef CONFIG_MAC80211_LEDS
 877         /* must be initialized before ieee80211_register_hw */
 878         priv->led_cdev.default_trigger = ieee80211_create_tpt_led_trigger(priv->hw,
 879                 IEEE80211_TPT_LEDTRIG_FL_RADIO, ath9k_htc_tpt_blink,
 880                 ARRAY_SIZE(ath9k_htc_tpt_blink));
 881 #endif
 882
 883         /* Register with mac80211 */
 884         error = ieee80211_register_hw(hw);
 885         if (error)
 886                 goto err_register;
 887
 888         /* Handle world regulatory */
 889         if (!ath_is_world_regd(reg)) {
 890                 error = regulatory_hint(hw->wiphy, reg->alpha2);
 891                 if (error)
 892                         goto err_world;
 893         }
 894
 895         error = ath9k_htc_init_debug(priv->ah);
 896         if (error) {
 897                 ath_err(common, "Unable to create debugfs files\n");
 898                 goto err_world;
 899         }
 900
 901         ath_dbg(common, ATH_DBG_CONFIG,
 902                 "WMI:%d, BCN:%d, CAB:%d, UAPSD:%d, MGMT:%d, "
 903                 "BE:%d, BK:%d, VI:%d, VO:%d\n",
 904                 priv->wmi_cmd_ep,
 905                 priv->beacon_ep,
 906                 priv->cab_ep,
 907                 priv->uapsd_ep,
 908                 priv->mgmt_ep,
 909                 priv->data_be_ep,
 910                 priv->data_bk_ep,
 911                 priv->data_vi_ep,
 912                 priv->data_vo_ep);
 913
 914         ath9k_hw_name(priv->ah, hw_name, sizeof(hw_name));
 915         wiphy_info(hw->wiphy, "%s\n", hw_name);
 916
 917         ath9k_init_leds(priv);
 918         ath9k_start_rfkill_poll(priv);
 919
 920         return 0;
 921
 922 err_world:
 923         ieee80211_unregister_hw(hw);
 924 err_register:
 925         ath9k_rx_cleanup(priv);
 926 err_rx:
 927         ath9k_tx_cleanup(priv);
 928 err_tx:
 929         /* Nothing */
 930 err_regd:
 931         /* Nothing */
 932 err_fw:
 933         ath9k_deinit_priv(priv);
 934 err_init:
 935         return error;
 936 }
 937
 938 int ath9k_htc_probe_device(struct htc_target *htc_handle, struct device *dev,
 939                            u16 devid, char *product, u32 drv_info)
 940 {
 941         struct ieee80211_hw *hw;
 942         struct ath9k_htc_priv *priv;
 943         int ret;
 944
 945         hw = ieee80211_alloc_hw(sizeof(struct ath9k_htc_priv), &ath9k_htc_ops);
 946         if (!hw)
 947                 return -ENOMEM;
 948
 949         priv = hw->priv;
 950         priv->hw = hw;
 951         priv->htc = htc_handle;
 952         priv->dev = dev;
 953         htc_handle->drv_priv = priv;
 954         SET_IEEE80211_DEV(hw, priv->dev);
 955
 956         ret = ath9k_htc_wait_for_target(priv);
 957         if (ret)
 958                 goto err_free;
 959
 960         priv->wmi = ath9k_init_wmi(priv);
 961         if (!priv->wmi) {
 962                 ret = -EINVAL;
 963                 goto err_free;
 964         }
 965
 966         ret = ath9k_init_htc_services(priv, devid, drv_info);
 967         if (ret)
 968                 goto err_init;
 969
 970         ret = ath9k_init_device(priv, devid, product, drv_info);
 971         if (ret)
 972                 goto err_init;
 973
 974         return 0;
 975
 976 err_init:
 977         ath9k_deinit_wmi(priv);
 978 err_free:
 979         ieee80211_free_hw(hw);
 980         return ret;
 981 }
 982
 983 void ath9k_htc_disconnect_device(struct htc_target *htc_handle, bool hotunplug)
 984 {
 985         if (htc_handle->drv_priv) {
 986
 987                 /* Check if the device has been yanked out. */
 988                 if (hotunplug)
 989                         htc_handle->drv_priv->ah->ah_flags |= AH_UNPLUGGED;
 990
 991                 ath9k_deinit_device(htc_handle->drv_priv);
 992                 ath9k_deinit_wmi(htc_handle->drv_priv);
 993                 ieee80211_free_hw(htc_handle->drv_priv->hw);
 994         }
 995 }
 996
 997 #ifdef CONFIG_PM
 998
 999 void ath9k_htc_suspend(struct htc_target *htc_handle)
1000 {
1001         ath9k_htc_setpower(htc_handle->drv_priv, ATH9K_PM_FULL_SLEEP);
1002 }
1003
1004 int ath9k_htc_resume(struct htc_target *htc_handle)
1005 {
1006         struct ath9k_htc_priv *priv = htc_handle->drv_priv;
1007         int ret;
1008
1009         ret = ath9k_htc_wait_for_target(priv);
1010         if (ret)
1011                 return ret;
1012
1013         ret = ath9k_init_htc_services(priv, priv->ah->hw_version.devid,
1014                                       priv->ah->hw_version.usbdev);
1015         return ret;
1016 }
1017 #endif
1018
1019 static int __init ath9k_htc_init(void)
1020 {
1021         if (ath9k_hif_usb_init() < 0) {
1022                 printk(KERN_ERR
1023                         "ath9k_htc: No USB devices found,"
1024                         " driver not installed.\n");
1025                 return -ENODEV;
1026         }
1027
1028         return 0;
1029 }
1030 module_init(ath9k_htc_init);
1031
1032 static void __exit ath9k_htc_exit(void)
1033 {
1034         ath9k_hif_usb_exit();
1035         printk(KERN_INFO "ath9k_htc: Driver unloaded\n");
1036 }
1037 module_exit(ath9k_htc_exit);