Pileus Git - ~andy/linux/blob - 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 >= 2)
 521                 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
 522
 523         if (tx_streams != rx_streams) {
 524                 ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_RX_DIFF;
 525                 ht_info->mcs.tx_params |= ((tx_streams - 1) <<
 526                                            IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT);
 527         }
 528
 529         for (i = 0; i < rx_streams; i++)
 530                 ht_info->mcs.rx_mask[i] = 0xff;
 531
 532         ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_DEFINED;
 533 }
 534
 535 static int ath9k_init_queues(struct ath9k_htc_priv *priv)
 536 {
 537         struct ath_common *common = ath9k_hw_common(priv->ah);
 538         int i;
 539
 540         for (i = 0; i < ARRAY_SIZE(priv->hwq_map); i++)
 541                 priv->hwq_map[i] = -1;
 542
 543         priv->beaconq = ath9k_hw_beaconq_setup(priv->ah);
 544         if (priv->beaconq == -1) {
 545                 ath_err(common, "Unable to setup BEACON xmit queue\n");
 546                 goto err;
 547         }
 548
 549         priv->cabq = ath9k_htc_cabq_setup(priv);
 550         if (priv->cabq == -1) {
 551                 ath_err(common, "Unable to setup CAB xmit queue\n");
 552                 goto err;
 553         }
 554
 555         if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_BE)) {
 556                 ath_err(common, "Unable to setup xmit queue for BE traffic\n");
 557                 goto err;
 558         }
 559
 560         if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_BK)) {
 561                 ath_err(common, "Unable to setup xmit queue for BK traffic\n");
 562                 goto err;
 563         }
 564         if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_VI)) {
 565                 ath_err(common, "Unable to setup xmit queue for VI traffic\n");
 566                 goto err;
 567         }
 568         if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_VO)) {
 569                 ath_err(common, "Unable to setup xmit queue for VO traffic\n");
 570                 goto err;
 571         }
 572
 573         return 0;
 574
 575 err:
 576         return -EINVAL;
 577 }
 578
 579 static void ath9k_init_channels_rates(struct ath9k_htc_priv *priv)
 580 {
 581         if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_2GHZ) {
 582                 priv->sbands[IEEE80211_BAND_2GHZ].channels =
 583                         ath9k_2ghz_channels;
 584                 priv->sbands[IEEE80211_BAND_2GHZ].band = IEEE80211_BAND_2GHZ;
 585                 priv->sbands[IEEE80211_BAND_2GHZ].n_channels =
 586                         ARRAY_SIZE(ath9k_2ghz_channels);
 587                 priv->sbands[IEEE80211_BAND_2GHZ].bitrates = ath9k_legacy_rates;
 588                 priv->sbands[IEEE80211_BAND_2GHZ].n_bitrates =
 589                         ARRAY_SIZE(ath9k_legacy_rates);
 590         }
 591
 592         if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_5GHZ) {
 593                 priv->sbands[IEEE80211_BAND_5GHZ].channels = ath9k_5ghz_channels;
 594                 priv->sbands[IEEE80211_BAND_5GHZ].band = IEEE80211_BAND_5GHZ;
 595                 priv->sbands[IEEE80211_BAND_5GHZ].n_channels =
 596                         ARRAY_SIZE(ath9k_5ghz_channels);
 597                 priv->sbands[IEEE80211_BAND_5GHZ].bitrates =
 598                         ath9k_legacy_rates + 4;
 599                 priv->sbands[IEEE80211_BAND_5GHZ].n_bitrates =
 600                         ARRAY_SIZE(ath9k_legacy_rates) - 4;
 601         }
 602 }
 603
 604 static void ath9k_init_misc(struct ath9k_htc_priv *priv)
 605 {
 606         struct ath_common *common = ath9k_hw_common(priv->ah);
 607
 608         memcpy(common->bssidmask, ath_bcast_mac, ETH_ALEN);
 609
 610         priv->ah->opmode = NL80211_IFTYPE_STATION;
 611 }
 612
 613 static int ath9k_init_priv(struct ath9k_htc_priv *priv,
 614                            u16 devid, char *product,
 615                            u32 drv_info)
 616 {
 617         struct ath_hw *ah = NULL;
 618         struct ath_common *common;
 619         int i, ret = 0, csz = 0;
 620
 621         set_bit(OP_INVALID, &priv->op_flags);
 622
 623         ah = kzalloc(sizeof(struct ath_hw), GFP_KERNEL);
 624         if (!ah)
 625                 return -ENOMEM;
 626
 627         ah->hw_version.devid = devid;
 628         ah->hw_version.usbdev = drv_info;
 629         ah->ah_flags |= AH_USE_EEPROM;
 630         ah->reg_ops.read = ath9k_regread;
 631         ah->reg_ops.multi_read = ath9k_multi_regread;
 632         ah->reg_ops.write = ath9k_regwrite;
 633         ah->reg_ops.enable_write_buffer = ath9k_enable_regwrite_buffer;
 634         ah->reg_ops.write_flush = ath9k_regwrite_flush;
 635         ah->reg_ops.rmw = ath9k_reg_rmw;
 636         priv->ah = ah;
 637
 638         common = ath9k_hw_common(ah);
 639         common->ops = &ah->reg_ops;
 640         common->bus_ops = &ath9k_usb_bus_ops;
 641         common->ah = ah;
 642         common->hw = priv->hw;
 643         common->priv = priv;
 644         common->debug_mask = ath9k_debug;
 645         common->btcoex_enabled = ath9k_htc_btcoex_enable == 1;
 646
 647         spin_lock_init(&priv->beacon_lock);
 648         spin_lock_init(&priv->tx.tx_lock);
 649         mutex_init(&priv->mutex);
 650         mutex_init(&priv->htc_pm_lock);
 651         tasklet_init(&priv->rx_tasklet, ath9k_rx_tasklet,
 652                      (unsigned long)priv);
 653         tasklet_init(&priv->tx_failed_tasklet, ath9k_tx_failed_tasklet,
 654                      (unsigned long)priv);
 655         INIT_DELAYED_WORK(&priv->ani_work, ath9k_htc_ani_work);
 656         INIT_WORK(&priv->ps_work, ath9k_ps_work);
 657         INIT_WORK(&priv->fatal_work, ath9k_fatal_work);
 658         setup_timer(&priv->tx.cleanup_timer, ath9k_htc_tx_cleanup_timer,
 659                     (unsigned long)priv);
 660
 661         /*
 662          * Cache line size is used to size and align various
 663          * structures used to communicate with the hardware.
 664          */
 665         ath_read_cachesize(common, &csz);
 666         common->cachelsz = csz << 2; /* convert to bytes */
 667
 668         ret = ath9k_hw_init(ah);
 669         if (ret) {
 670                 ath_err(common,
 671                         "Unable to initialize hardware; initialization status: %d\n",
 672                         ret);
 673                 goto err_hw;
 674         }
 675
 676         ret = ath9k_init_queues(priv);
 677         if (ret)
 678                 goto err_queues;
 679
 680         for (i = 0; i < ATH9K_HTC_MAX_BCN_VIF; i++)
 681                 priv->cur_beacon_conf.bslot[i] = NULL;
 682
 683         ath9k_cmn_init_crypto(ah);
 684         ath9k_init_channels_rates(priv);
 685         ath9k_init_misc(priv);
 686         ath9k_htc_init_btcoex(priv, product);
 687
 688         return 0;
 689
 690 err_queues:
 691         ath9k_hw_deinit(ah);
 692 err_hw:
 693
 694         kfree(ah);
 695         priv->ah = NULL;
 696
 697         return ret;
 698 }
 699
 700 static const struct ieee80211_iface_limit if_limits[] = {
 701         { .max = 2,     .types = BIT(NL80211_IFTYPE_STATION) |
 702                                  BIT(NL80211_IFTYPE_P2P_CLIENT) },
 703         { .max = 2,     .types = BIT(NL80211_IFTYPE_AP) |
 704 #ifdef CONFIG_MAC80211_MESH
 705                                  BIT(NL80211_IFTYPE_MESH_POINT) |
 706 #endif
 707                                  BIT(NL80211_IFTYPE_P2P_GO) },
 708 };
 709
 710 static const struct ieee80211_iface_combination if_comb = {
 711         .limits = if_limits,
 712         .n_limits = ARRAY_SIZE(if_limits),
 713         .max_interfaces = 2,
 714         .num_different_channels = 1,
 715 };
 716
 717 static void ath9k_set_hw_capab(struct ath9k_htc_priv *priv,
 718                                struct ieee80211_hw *hw)
 719 {
 720         struct ath_common *common = ath9k_hw_common(priv->ah);
 721         struct base_eep_header *pBase;
 722
 723         hw->flags = IEEE80211_HW_SIGNAL_DBM |
 724                 IEEE80211_HW_AMPDU_AGGREGATION |
 725                 IEEE80211_HW_SPECTRUM_MGMT |
 726                 IEEE80211_HW_HAS_RATE_CONTROL |
 727                 IEEE80211_HW_RX_INCLUDES_FCS |
 728                 IEEE80211_HW_SUPPORTS_PS |
 729                 IEEE80211_HW_PS_NULLFUNC_STACK |
 730                 IEEE80211_HW_REPORTS_TX_ACK_STATUS |
 731                 IEEE80211_HW_MFP_CAPABLE |
 732                 IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING;
 733
 734         hw->wiphy->interface_modes =
 735                 BIT(NL80211_IFTYPE_STATION) |
 736                 BIT(NL80211_IFTYPE_ADHOC) |
 737                 BIT(NL80211_IFTYPE_AP) |
 738                 BIT(NL80211_IFTYPE_P2P_GO) |
 739                 BIT(NL80211_IFTYPE_P2P_CLIENT) |
 740                 BIT(NL80211_IFTYPE_MESH_POINT);
 741
 742         hw->wiphy->iface_combinations = &if_comb;
 743         hw->wiphy->n_iface_combinations = 1;
 744
 745         hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
 746
 747         hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN |
 748                             WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
 749
 750         hw->queues = 4;
 751         hw->max_listen_interval = 1;
 752
 753         hw->vif_data_size = sizeof(struct ath9k_htc_vif);
 754         hw->sta_data_size = sizeof(struct ath9k_htc_sta);
 755
 756         /* tx_frame_hdr is larger than tx_mgmt_hdr anyway */
 757         hw->extra_tx_headroom = sizeof(struct tx_frame_hdr) +
 758                 sizeof(struct htc_frame_hdr) + 4;
 759
 760         if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_2GHZ)
 761                 hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
 762                         &priv->sbands[IEEE80211_BAND_2GHZ];
 763         if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_5GHZ)
 764                 hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
 765                         &priv->sbands[IEEE80211_BAND_5GHZ];
 766
 767         if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_HT) {
 768                 if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_2GHZ)
 769                         setup_ht_cap(priv,
 770                                      &priv->sbands[IEEE80211_BAND_2GHZ].ht_cap);
 771                 if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_5GHZ)
 772                         setup_ht_cap(priv,
 773                                      &priv->sbands[IEEE80211_BAND_5GHZ].ht_cap);
 774         }
 775
 776         pBase = ath9k_htc_get_eeprom_base(priv);
 777         if (pBase) {
 778                 hw->wiphy->available_antennas_rx = pBase->rxMask;
 779                 hw->wiphy->available_antennas_tx = pBase->txMask;
 780         }
 781
 782         SET_IEEE80211_PERM_ADDR(hw, common->macaddr);
 783 }
 784
 785 static int ath9k_init_firmware_version(struct ath9k_htc_priv *priv)
 786 {
 787         struct ieee80211_hw *hw = priv->hw;
 788         struct wmi_fw_version cmd_rsp;
 789         int ret;
 790
 791         memset(&cmd_rsp, 0, sizeof(cmd_rsp));
 792
 793         WMI_CMD(WMI_GET_FW_VERSION);
 794         if (ret)
 795                 return -EINVAL;
 796
 797         priv->fw_version_major = be16_to_cpu(cmd_rsp.major);
 798         priv->fw_version_minor = be16_to_cpu(cmd_rsp.minor);
 799
 800         snprintf(hw->wiphy->fw_version, sizeof(hw->wiphy->fw_version), "%d.%d",
 801                  priv->fw_version_major,
 802                  priv->fw_version_minor);
 803
 804         dev_info(priv->dev, "ath9k_htc: FW Version: %d.%d\n",
 805                  priv->fw_version_major,
 806                  priv->fw_version_minor);
 807
 808         /*
 809          * Check if the available FW matches the driver's
 810          * required version.
 811          */
 812         if (priv->fw_version_major != MAJOR_VERSION_REQ ||
 813             priv->fw_version_minor < MINOR_VERSION_REQ) {
 814                 dev_err(priv->dev, "ath9k_htc: Please upgrade to FW version %d.%d\n",
 815                         MAJOR_VERSION_REQ, MINOR_VERSION_REQ);
 816                 return -EINVAL;
 817         }
 818
 819         return 0;
 820 }
 821
 822 static int ath9k_init_device(struct ath9k_htc_priv *priv,
 823                              u16 devid, char *product, u32 drv_info)
 824 {
 825         struct ieee80211_hw *hw = priv->hw;
 826         struct ath_common *common;
 827         struct ath_hw *ah;
 828         int error = 0;
 829         struct ath_regulatory *reg;
 830         char hw_name[64];
 831
 832         /* Bring up device */
 833         error = ath9k_init_priv(priv, devid, product, drv_info);
 834         if (error != 0)
 835                 goto err_init;
 836
 837         ah = priv->ah;
 838         common = ath9k_hw_common(ah);
 839         ath9k_set_hw_capab(priv, hw);
 840
 841         error = ath9k_init_firmware_version(priv);
 842         if (error != 0)
 843                 goto err_fw;
 844
 845         /* Initialize regulatory */
 846         error = ath_regd_init(&common->regulatory, priv->hw->wiphy,
 847                               ath9k_reg_notifier);
 848         if (error)
 849                 goto err_regd;
 850
 851         reg = &common->regulatory;
 852
 853         /* Setup TX */
 854         error = ath9k_tx_init(priv);
 855         if (error != 0)
 856                 goto err_tx;
 857
 858         /* Setup RX */
 859         error = ath9k_rx_init(priv);
 860         if (error != 0)
 861                 goto err_rx;
 862
 863         ath9k_hw_disable(priv->ah);
 864 #ifdef CONFIG_MAC80211_LEDS
 865         /* must be initialized before ieee80211_register_hw */
 866         priv->led_cdev.default_trigger = ieee80211_create_tpt_led_trigger(priv->hw,
 867                 IEEE80211_TPT_LEDTRIG_FL_RADIO, ath9k_htc_tpt_blink,
 868                 ARRAY_SIZE(ath9k_htc_tpt_blink));
 869 #endif
 870
 871         /* Register with mac80211 */
 872         error = ieee80211_register_hw(hw);
 873         if (error)
 874                 goto err_register;
 875
 876         /* Handle world regulatory */
 877         if (!ath_is_world_regd(reg)) {
 878                 error = regulatory_hint(hw->wiphy, reg->alpha2);
 879                 if (error)
 880                         goto err_world;
 881         }
 882
 883         error = ath9k_htc_init_debug(priv->ah);
 884         if (error) {
 885                 ath_err(common, "Unable to create debugfs files\n");
 886                 goto err_world;
 887         }
 888
 889         ath_dbg(common, CONFIG,
 890                 "WMI:%d, BCN:%d, CAB:%d, UAPSD:%d, MGMT:%d, BE:%d, BK:%d, VI:%d, VO:%d\n",
 891                 priv->wmi_cmd_ep,
 892                 priv->beacon_ep,
 893                 priv->cab_ep,
 894                 priv->uapsd_ep,
 895                 priv->mgmt_ep,
 896                 priv->data_be_ep,
 897                 priv->data_bk_ep,
 898                 priv->data_vi_ep,
 899                 priv->data_vo_ep);
 900
 901         ath9k_hw_name(priv->ah, hw_name, sizeof(hw_name));
 902         wiphy_info(hw->wiphy, "%s\n", hw_name);
 903
 904         ath9k_init_leds(priv);
 905         ath9k_start_rfkill_poll(priv);
 906
 907         return 0;
 908
 909 err_world:
 910         ieee80211_unregister_hw(hw);
 911 err_register:
 912         ath9k_rx_cleanup(priv);
 913 err_rx:
 914         ath9k_tx_cleanup(priv);
 915 err_tx:
 916         /* Nothing */
 917 err_regd:
 918         /* Nothing */
 919 err_fw:
 920         ath9k_deinit_priv(priv);
 921 err_init:
 922         return error;
 923 }
 924
 925 int ath9k_htc_probe_device(struct htc_target *htc_handle, struct device *dev,
 926                            u16 devid, char *product, u32 drv_info)
 927 {
 928         struct ieee80211_hw *hw;
 929         struct ath9k_htc_priv *priv;
 930         int ret;
 931
 932         hw = ieee80211_alloc_hw(sizeof(struct ath9k_htc_priv), &ath9k_htc_ops);
 933         if (!hw)
 934                 return -ENOMEM;
 935
 936         priv = hw->priv;
 937         priv->hw = hw;
 938         priv->htc = htc_handle;
 939         priv->dev = dev;
 940         htc_handle->drv_priv = priv;
 941         SET_IEEE80211_DEV(hw, priv->dev);
 942
 943         ret = ath9k_htc_wait_for_target(priv);
 944         if (ret)
 945                 goto err_free;
 946
 947         priv->wmi = ath9k_init_wmi(priv);
 948         if (!priv->wmi) {
 949                 ret = -EINVAL;
 950                 goto err_free;
 951         }
 952
 953         ret = ath9k_init_htc_services(priv, devid, drv_info);
 954         if (ret)
 955                 goto err_init;
 956
 957         ret = ath9k_init_device(priv, devid, product, drv_info);
 958         if (ret)
 959                 goto err_init;
 960
 961         return 0;
 962
 963 err_init:
 964         ath9k_deinit_wmi(priv);
 965 err_free:
 966         ieee80211_free_hw(hw);
 967         return ret;
 968 }
 969
 970 void ath9k_htc_disconnect_device(struct htc_target *htc_handle, bool hotunplug)
 971 {
 972         if (htc_handle->drv_priv) {
 973
 974                 /* Check if the device has been yanked out. */
 975                 if (hotunplug)
 976                         htc_handle->drv_priv->ah->ah_flags |= AH_UNPLUGGED;
 977
 978                 ath9k_deinit_device(htc_handle->drv_priv);
 979                 ath9k_deinit_wmi(htc_handle->drv_priv);
 980                 ieee80211_free_hw(htc_handle->drv_priv->hw);
 981         }
 982 }
 983
 984 #ifdef CONFIG_PM
 985
 986 void ath9k_htc_suspend(struct htc_target *htc_handle)
 987 {
 988         ath9k_htc_setpower(htc_handle->drv_priv, ATH9K_PM_FULL_SLEEP);
 989 }
 990
 991 int ath9k_htc_resume(struct htc_target *htc_handle)
 992 {
 993         struct ath9k_htc_priv *priv = htc_handle->drv_priv;
 994         int ret;
 995
 996         ret = ath9k_htc_wait_for_target(priv);
 997         if (ret)
 998                 return ret;
 999
1000         ret = ath9k_init_htc_services(priv, priv->ah->hw_version.devid,
1001                                       priv->ah->hw_version.usbdev);
1002         ath9k_configure_leds(priv);
1003
1004         return ret;
1005 }
1006 #endif
1007
1008 static int __init ath9k_htc_init(void)
1009 {
1010         if (ath9k_hif_usb_init() < 0) {
1011                 pr_err("No USB devices found, driver not installed\n");
1012                 return -ENODEV;
1013         }
1014
1015         return 0;
1016 }
1017 module_init(ath9k_htc_init);
1018
1019 static void __exit ath9k_htc_exit(void)
1020 {
1021         ath9k_hif_usb_exit();
1022         pr_info("Driver unloaded\n");
1023 }
1024 module_exit(ath9k_htc_exit);