linux/drivers/net/wireless/ath/ath9k/htc_drv_init.c
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   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
  21MODULE_AUTHOR("Atheros Communications");
  22MODULE_LICENSE("Dual BSD/GPL");
  23MODULE_DESCRIPTION("Atheros driver 802.11n HTC based wireless devices");
  24
  25static unsigned int ath9k_debug = ATH_DBG_DEFAULT;
  26module_param_named(debug, ath9k_debug, uint, 0);
  27MODULE_PARM_DESC(debug, "Debugging mask");
  28
  29int htc_modparam_nohwcrypt;
  30module_param_named(nohwcrypt, htc_modparam_nohwcrypt, int, 0444);
  31MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption");
  32
  33static int ath9k_htc_btcoex_enable;
  34module_param_named(btcoex_enable, ath9k_htc_btcoex_enable, int, 0444);
  35MODULE_PARM_DESC(btcoex_enable, "Enable wifi-BT coexistence");
  36
  37static int ath9k_ps_enable;
  38module_param_named(ps_enable, ath9k_ps_enable, int, 0444);
  39MODULE_PARM_DESC(ps_enable, "Enable WLAN PowerSave");
  40
  41int htc_use_dev_fw = 0;
  42module_param_named(use_dev_fw, htc_use_dev_fw, int, 0444);
  43MODULE_PARM_DESC(use_dev_fw, "Use development FW version");
  44
  45#ifdef CONFIG_MAC80211_LEDS
  46int ath9k_htc_led_blink = 1;
  47module_param_named(blink, ath9k_htc_led_blink, int, 0444);
  48MODULE_PARM_DESC(blink, "Enable LED blink on activity");
  49
  50static const struct ieee80211_tpt_blink ath9k_htc_tpt_blink[] = {
  51        { .throughput = 0 * 1024, .blink_time = 334 },
  52        { .throughput = 1 * 1024, .blink_time = 260 },
  53        { .throughput = 5 * 1024, .blink_time = 220 },
  54        { .throughput = 10 * 1024, .blink_time = 190 },
  55        { .throughput = 20 * 1024, .blink_time = 170 },
  56        { .throughput = 50 * 1024, .blink_time = 150 },
  57        { .throughput = 70 * 1024, .blink_time = 130 },
  58        { .throughput = 100 * 1024, .blink_time = 110 },
  59        { .throughput = 200 * 1024, .blink_time = 80 },
  60        { .throughput = 300 * 1024, .blink_time = 50 },
  61};
  62#endif
  63
  64static void ath9k_htc_op_ps_wakeup(struct ath_common *common)
  65{
  66        ath9k_htc_ps_wakeup((struct ath9k_htc_priv *) common->priv);
  67}
  68
  69static void ath9k_htc_op_ps_restore(struct ath_common *common)
  70{
  71        ath9k_htc_ps_restore((struct ath9k_htc_priv *) common->priv);
  72}
  73
  74static const struct ath_ps_ops ath9k_htc_ps_ops = {
  75        .wakeup = ath9k_htc_op_ps_wakeup,
  76        .restore = ath9k_htc_op_ps_restore,
  77};
  78
  79static int ath9k_htc_wait_for_target(struct ath9k_htc_priv *priv)
  80{
  81        unsigned long time_left;
  82
  83        if (atomic_read(&priv->htc->tgt_ready) > 0) {
  84                atomic_dec(&priv->htc->tgt_ready);
  85                return 0;
  86        }
  87
  88        /* Firmware can take up to 50ms to get ready, to be safe use 1 second */
  89        time_left = wait_for_completion_timeout(&priv->htc->target_wait, HZ);
  90        if (!time_left) {
  91                dev_err(priv->dev, "ath9k_htc: Target is unresponsive\n");
  92                return -ETIMEDOUT;
  93        }
  94
  95        atomic_dec(&priv->htc->tgt_ready);
  96
  97        return 0;
  98}
  99
 100static void ath9k_deinit_priv(struct ath9k_htc_priv *priv)
 101{
 102        ath9k_hw_deinit(priv->ah);
 103        kfree(priv->ah);
 104        priv->ah = NULL;
 105}
 106
 107static void ath9k_deinit_device(struct ath9k_htc_priv *priv)
 108{
 109        struct ieee80211_hw *hw = priv->hw;
 110
 111        wiphy_rfkill_stop_polling(hw->wiphy);
 112        ath9k_deinit_leds(priv);
 113        ath9k_htc_deinit_debug(priv);
 114        ieee80211_unregister_hw(hw);
 115        ath9k_rx_cleanup(priv);
 116        ath9k_tx_cleanup(priv);
 117        ath9k_deinit_priv(priv);
 118}
 119
 120static inline int ath9k_htc_connect_svc(struct ath9k_htc_priv *priv,
 121                                        u16 service_id,
 122                                        void (*tx) (void *,
 123                                                    struct sk_buff *,
 124                                                    enum htc_endpoint_id,
 125                                                    bool txok),
 126                                        enum htc_endpoint_id *ep_id)
 127{
 128        struct htc_service_connreq req;
 129
 130        memset(&req, 0, sizeof(struct htc_service_connreq));
 131
 132        req.service_id = service_id;
 133        req.ep_callbacks.priv = priv;
 134        req.ep_callbacks.rx = ath9k_htc_rxep;
 135        req.ep_callbacks.tx = tx;
 136
 137        return htc_connect_service(priv->htc, &req, ep_id);
 138}
 139
 140static int ath9k_init_htc_services(struct ath9k_htc_priv *priv, u16 devid,
 141                                   u32 drv_info)
 142{
 143        int ret;
 144
 145        /* WMI CMD*/
 146        ret = ath9k_wmi_connect(priv->htc, priv->wmi, &priv->wmi_cmd_ep);
 147        if (ret)
 148                goto err;
 149
 150        /* Beacon */
 151        ret = ath9k_htc_connect_svc(priv, WMI_BEACON_SVC, ath9k_htc_beaconep,
 152                                    &priv->beacon_ep);
 153        if (ret)
 154                goto err;
 155
 156        /* CAB */
 157        ret = ath9k_htc_connect_svc(priv, WMI_CAB_SVC, ath9k_htc_txep,
 158                                    &priv->cab_ep);
 159        if (ret)
 160                goto err;
 161
 162
 163        /* UAPSD */
 164        ret = ath9k_htc_connect_svc(priv, WMI_UAPSD_SVC, ath9k_htc_txep,
 165                                    &priv->uapsd_ep);
 166        if (ret)
 167                goto err;
 168
 169        /* MGMT */
 170        ret = ath9k_htc_connect_svc(priv, WMI_MGMT_SVC, ath9k_htc_txep,
 171                                    &priv->mgmt_ep);
 172        if (ret)
 173                goto err;
 174
 175        /* DATA BE */
 176        ret = ath9k_htc_connect_svc(priv, WMI_DATA_BE_SVC, ath9k_htc_txep,
 177                                    &priv->data_be_ep);
 178        if (ret)
 179                goto err;
 180
 181        /* DATA BK */
 182        ret = ath9k_htc_connect_svc(priv, WMI_DATA_BK_SVC, ath9k_htc_txep,
 183                                    &priv->data_bk_ep);
 184        if (ret)
 185                goto err;
 186
 187        /* DATA VI */
 188        ret = ath9k_htc_connect_svc(priv, WMI_DATA_VI_SVC, ath9k_htc_txep,
 189                                    &priv->data_vi_ep);
 190        if (ret)
 191                goto err;
 192
 193        /* DATA VO */
 194        ret = ath9k_htc_connect_svc(priv, WMI_DATA_VO_SVC, ath9k_htc_txep,
 195                                    &priv->data_vo_ep);
 196        if (ret)
 197                goto err;
 198
 199        /*
 200         * Setup required credits before initializing HTC.
 201         * This is a bit hacky, but, since queuing is done in
 202         * the HIF layer, shouldn't matter much.
 203         */
 204
 205        if (IS_AR7010_DEVICE(drv_info))
 206                priv->htc->credits = 45;
 207        else
 208                priv->htc->credits = 33;
 209
 210        ret = htc_init(priv->htc);
 211        if (ret)
 212                goto err;
 213
 214        dev_info(priv->dev, "ath9k_htc: HTC initialized with %d credits\n",
 215                 priv->htc->credits);
 216
 217        return 0;
 218
 219err:
 220        dev_err(priv->dev, "ath9k_htc: Unable to initialize HTC services\n");
 221        return ret;
 222}
 223
 224static void ath9k_reg_notifier(struct wiphy *wiphy,
 225                               struct regulatory_request *request)
 226{
 227        struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
 228        struct ath9k_htc_priv *priv = hw->priv;
 229
 230        ath_reg_notifier_apply(wiphy, request,
 231                               ath9k_hw_regulatory(priv->ah));
 232}
 233
 234static unsigned int ath9k_regread(void *hw_priv, u32 reg_offset)
 235{
 236        struct ath_hw *ah = hw_priv;
 237        struct ath_common *common = ath9k_hw_common(ah);
 238        struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
 239        __be32 val, reg = cpu_to_be32(reg_offset);
 240        int r;
 241
 242        r = ath9k_wmi_cmd(priv->wmi, WMI_REG_READ_CMDID,
 243                          (u8 *) &reg, sizeof(reg),
 244                          (u8 *) &val, sizeof(val),
 245                          100);
 246        if (unlikely(r)) {
 247                ath_dbg(common, WMI, "REGISTER READ FAILED: (0x%04x, %d)\n",
 248                        reg_offset, r);
 249                return -EIO;
 250        }
 251
 252        return be32_to_cpu(val);
 253}
 254
 255static void ath9k_multi_regread(void *hw_priv, u32 *addr,
 256                                u32 *val, u16 count)
 257{
 258        struct ath_hw *ah = hw_priv;
 259        struct ath_common *common = ath9k_hw_common(ah);
 260        struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
 261        __be32 tmpaddr[8];
 262        __be32 tmpval[8];
 263        int i, ret;
 264
 265        for (i = 0; i < count; i++) {
 266                tmpaddr[i] = cpu_to_be32(addr[i]);
 267        }
 268
 269        ret = ath9k_wmi_cmd(priv->wmi, WMI_REG_READ_CMDID,
 270                           (u8 *)tmpaddr , sizeof(u32) * count,
 271                           (u8 *)tmpval, sizeof(u32) * count,
 272                           100);
 273        if (unlikely(ret)) {
 274                ath_dbg(common, WMI,
 275                        "Multiple REGISTER READ FAILED (count: %d)\n", count);
 276        }
 277
 278        for (i = 0; i < count; i++) {
 279                val[i] = be32_to_cpu(tmpval[i]);
 280        }
 281}
 282
 283static void ath9k_regwrite_multi(struct ath_common *common)
 284{
 285        struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
 286        u32 rsp_status;
 287        int r;
 288
 289        r = ath9k_wmi_cmd(priv->wmi, WMI_REG_WRITE_CMDID,
 290                          (u8 *) &priv->wmi->multi_write,
 291                          sizeof(struct register_write) * priv->wmi->multi_write_idx,
 292                          (u8 *) &rsp_status, sizeof(rsp_status),
 293                          100);
 294        if (unlikely(r)) {
 295                ath_dbg(common, WMI,
 296                        "REGISTER WRITE FAILED, multi len: %d\n",
 297                        priv->wmi->multi_write_idx);
 298        }
 299        priv->wmi->multi_write_idx = 0;
 300}
 301
 302static void ath9k_regwrite_single(void *hw_priv, u32 val, u32 reg_offset)
 303{
 304        struct ath_hw *ah = hw_priv;
 305        struct ath_common *common = ath9k_hw_common(ah);
 306        struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
 307        const __be32 buf[2] = {
 308                cpu_to_be32(reg_offset),
 309                cpu_to_be32(val),
 310        };
 311        int r;
 312
 313        r = ath9k_wmi_cmd(priv->wmi, WMI_REG_WRITE_CMDID,
 314                          (u8 *) &buf, sizeof(buf),
 315                          (u8 *) &val, sizeof(val),
 316                          100);
 317        if (unlikely(r)) {
 318                ath_dbg(common, WMI, "REGISTER WRITE FAILED:(0x%04x, %d)\n",
 319                        reg_offset, r);
 320        }
 321}
 322
 323static void ath9k_regwrite_buffer(void *hw_priv, u32 val, u32 reg_offset)
 324{
 325        struct ath_hw *ah = hw_priv;
 326        struct ath_common *common = ath9k_hw_common(ah);
 327        struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
 328
 329        mutex_lock(&priv->wmi->multi_write_mutex);
 330
 331        /* Store the register/value */
 332        priv->wmi->multi_write[priv->wmi->multi_write_idx].reg =
 333                cpu_to_be32(reg_offset);
 334        priv->wmi->multi_write[priv->wmi->multi_write_idx].val =
 335                cpu_to_be32(val);
 336
 337        priv->wmi->multi_write_idx++;
 338
 339        /* If the buffer is full, send it out. */
 340        if (priv->wmi->multi_write_idx == MAX_CMD_NUMBER)
 341                ath9k_regwrite_multi(common);
 342
 343        mutex_unlock(&priv->wmi->multi_write_mutex);
 344}
 345
 346static void ath9k_regwrite(void *hw_priv, u32 val, u32 reg_offset)
 347{
 348        struct ath_hw *ah = hw_priv;
 349        struct ath_common *common = ath9k_hw_common(ah);
 350        struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
 351
 352        if (atomic_read(&priv->wmi->mwrite_cnt))
 353                ath9k_regwrite_buffer(hw_priv, val, reg_offset);
 354        else
 355                ath9k_regwrite_single(hw_priv, val, reg_offset);
 356}
 357
 358static void ath9k_enable_regwrite_buffer(void *hw_priv)
 359{
 360        struct ath_hw *ah = hw_priv;
 361        struct ath_common *common = ath9k_hw_common(ah);
 362        struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
 363
 364        atomic_inc(&priv->wmi->mwrite_cnt);
 365}
 366
 367static void ath9k_regwrite_flush(void *hw_priv)
 368{
 369        struct ath_hw *ah = hw_priv;
 370        struct ath_common *common = ath9k_hw_common(ah);
 371        struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
 372
 373        atomic_dec(&priv->wmi->mwrite_cnt);
 374
 375        mutex_lock(&priv->wmi->multi_write_mutex);
 376
 377        if (priv->wmi->multi_write_idx)
 378                ath9k_regwrite_multi(common);
 379
 380        mutex_unlock(&priv->wmi->multi_write_mutex);
 381}
 382
 383static void ath9k_reg_rmw_buffer(void *hw_priv,
 384                                 u32 reg_offset, u32 set, u32 clr)
 385{
 386        struct ath_hw *ah = hw_priv;
 387        struct ath_common *common = ath9k_hw_common(ah);
 388        struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
 389        u32 rsp_status;
 390        int r;
 391
 392        mutex_lock(&priv->wmi->multi_rmw_mutex);
 393
 394        /* Store the register/value */
 395        priv->wmi->multi_rmw[priv->wmi->multi_rmw_idx].reg =
 396                cpu_to_be32(reg_offset);
 397        priv->wmi->multi_rmw[priv->wmi->multi_rmw_idx].set =
 398                cpu_to_be32(set);
 399        priv->wmi->multi_rmw[priv->wmi->multi_rmw_idx].clr =
 400                cpu_to_be32(clr);
 401
 402        priv->wmi->multi_rmw_idx++;
 403
 404        /* If the buffer is full, send it out. */
 405        if (priv->wmi->multi_rmw_idx == MAX_RMW_CMD_NUMBER) {
 406                r = ath9k_wmi_cmd(priv->wmi, WMI_REG_RMW_CMDID,
 407                          (u8 *) &priv->wmi->multi_rmw,
 408                          sizeof(struct register_write) * priv->wmi->multi_rmw_idx,
 409                          (u8 *) &rsp_status, sizeof(rsp_status),
 410                          100);
 411                if (unlikely(r)) {
 412                        ath_dbg(common, WMI,
 413                                "REGISTER RMW FAILED, multi len: %d\n",
 414                                priv->wmi->multi_rmw_idx);
 415                }
 416                priv->wmi->multi_rmw_idx = 0;
 417        }
 418
 419        mutex_unlock(&priv->wmi->multi_rmw_mutex);
 420}
 421
 422static void ath9k_reg_rmw_flush(void *hw_priv)
 423{
 424        struct ath_hw *ah = hw_priv;
 425        struct ath_common *common = ath9k_hw_common(ah);
 426        struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
 427        u32 rsp_status;
 428        int r;
 429
 430        if (test_bit(HTC_FWFLAG_NO_RMW, &priv->fw_flags))
 431                return;
 432
 433        atomic_dec(&priv->wmi->m_rmw_cnt);
 434
 435        mutex_lock(&priv->wmi->multi_rmw_mutex);
 436
 437        if (priv->wmi->multi_rmw_idx) {
 438                r = ath9k_wmi_cmd(priv->wmi, WMI_REG_RMW_CMDID,
 439                          (u8 *) &priv->wmi->multi_rmw,
 440                          sizeof(struct register_rmw) * priv->wmi->multi_rmw_idx,
 441                          (u8 *) &rsp_status, sizeof(rsp_status),
 442                          100);
 443                if (unlikely(r)) {
 444                        ath_dbg(common, WMI,
 445                                "REGISTER RMW FAILED, multi len: %d\n",
 446                                priv->wmi->multi_rmw_idx);
 447                }
 448                priv->wmi->multi_rmw_idx = 0;
 449        }
 450
 451        mutex_unlock(&priv->wmi->multi_rmw_mutex);
 452}
 453
 454static void ath9k_enable_rmw_buffer(void *hw_priv)
 455{
 456        struct ath_hw *ah = hw_priv;
 457        struct ath_common *common = ath9k_hw_common(ah);
 458        struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
 459
 460        if (test_bit(HTC_FWFLAG_NO_RMW, &priv->fw_flags))
 461                return;
 462
 463        atomic_inc(&priv->wmi->m_rmw_cnt);
 464}
 465
 466static void ath9k_reg_rmw_single(void *hw_priv,
 467                                 u32 reg_offset, u32 set, u32 clr)
 468{
 469        struct ath_hw *ah = hw_priv;
 470        struct ath_common *common = ath9k_hw_common(ah);
 471        struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
 472        struct register_rmw buf, buf_ret;
 473        int ret;
 474
 475        buf.reg = cpu_to_be32(reg_offset);
 476        buf.set = cpu_to_be32(set);
 477        buf.clr = cpu_to_be32(clr);
 478
 479        ret = ath9k_wmi_cmd(priv->wmi, WMI_REG_RMW_CMDID,
 480                          (u8 *) &buf, sizeof(buf),
 481                          (u8 *) &buf_ret, sizeof(buf_ret),
 482                          100);
 483        if (unlikely(ret)) {
 484                ath_dbg(common, WMI, "REGISTER RMW FAILED:(0x%04x, %d)\n",
 485                        reg_offset, ret);
 486        }
 487}
 488
 489static u32 ath9k_reg_rmw(void *hw_priv, u32 reg_offset, u32 set, u32 clr)
 490{
 491        struct ath_hw *ah = hw_priv;
 492        struct ath_common *common = ath9k_hw_common(ah);
 493        struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
 494
 495        if (test_bit(HTC_FWFLAG_NO_RMW, &priv->fw_flags)) {
 496                u32 val;
 497
 498                val = REG_READ(ah, reg_offset);
 499                val &= ~clr;
 500                val |= set;
 501                REG_WRITE(ah, reg_offset, val);
 502
 503                return 0;
 504        }
 505
 506        if (atomic_read(&priv->wmi->m_rmw_cnt))
 507                ath9k_reg_rmw_buffer(hw_priv, reg_offset, set, clr);
 508        else
 509                ath9k_reg_rmw_single(hw_priv, reg_offset, set, clr);
 510
 511        return 0;
 512}
 513
 514static void ath_usb_read_cachesize(struct ath_common *common, int *csz)
 515{
 516        *csz = L1_CACHE_BYTES >> 2;
 517}
 518
 519static bool ath_usb_eeprom_read(struct ath_common *common, u32 off, u16 *data)
 520{
 521        struct ath_hw *ah = (struct ath_hw *) common->ah;
 522
 523        (void)REG_READ(ah, AR5416_EEPROM_OFFSET + (off << AR5416_EEPROM_S));
 524
 525        if (!ath9k_hw_wait(ah,
 526                           AR_EEPROM_STATUS_DATA,
 527                           AR_EEPROM_STATUS_DATA_BUSY |
 528                           AR_EEPROM_STATUS_DATA_PROT_ACCESS, 0,
 529                           AH_WAIT_TIMEOUT))
 530                return false;
 531
 532        *data = MS(REG_READ(ah, AR_EEPROM_STATUS_DATA),
 533                   AR_EEPROM_STATUS_DATA_VAL);
 534
 535        return true;
 536}
 537
 538static const struct ath_bus_ops ath9k_usb_bus_ops = {
 539        .ath_bus_type = ATH_USB,
 540        .read_cachesize = ath_usb_read_cachesize,
 541        .eeprom_read = ath_usb_eeprom_read,
 542};
 543
 544static int ath9k_init_queues(struct ath9k_htc_priv *priv)
 545{
 546        struct ath_common *common = ath9k_hw_common(priv->ah);
 547        int i;
 548
 549        for (i = 0; i < ARRAY_SIZE(priv->hwq_map); i++)
 550                priv->hwq_map[i] = -1;
 551
 552        priv->beacon.beaconq = ath9k_hw_beaconq_setup(priv->ah);
 553        if (priv->beacon.beaconq == -1) {
 554                ath_err(common, "Unable to setup BEACON xmit queue\n");
 555                goto err;
 556        }
 557
 558        priv->cabq = ath9k_htc_cabq_setup(priv);
 559        if (priv->cabq == -1) {
 560                ath_err(common, "Unable to setup CAB xmit queue\n");
 561                goto err;
 562        }
 563
 564        if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_BE)) {
 565                ath_err(common, "Unable to setup xmit queue for BE traffic\n");
 566                goto err;
 567        }
 568
 569        if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_BK)) {
 570                ath_err(common, "Unable to setup xmit queue for BK traffic\n");
 571                goto err;
 572        }
 573        if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_VI)) {
 574                ath_err(common, "Unable to setup xmit queue for VI traffic\n");
 575                goto err;
 576        }
 577        if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_VO)) {
 578                ath_err(common, "Unable to setup xmit queue for VO traffic\n");
 579                goto err;
 580        }
 581
 582        return 0;
 583
 584err:
 585        return -EINVAL;
 586}
 587
 588static void ath9k_init_misc(struct ath9k_htc_priv *priv)
 589{
 590        struct ath_common *common = ath9k_hw_common(priv->ah);
 591
 592        eth_broadcast_addr(common->bssidmask);
 593
 594        common->last_rssi = ATH_RSSI_DUMMY_MARKER;
 595        priv->ah->opmode = NL80211_IFTYPE_STATION;
 596
 597        priv->spec_priv.ah = priv->ah;
 598        priv->spec_priv.spec_config.enabled = 0;
 599        priv->spec_priv.spec_config.short_repeat = true;
 600        priv->spec_priv.spec_config.count = 8;
 601        priv->spec_priv.spec_config.endless = false;
 602        priv->spec_priv.spec_config.period = 0x12;
 603        priv->spec_priv.spec_config.fft_period = 0x02;
 604}
 605
 606static int ath9k_init_priv(struct ath9k_htc_priv *priv,
 607                           u16 devid, char *product,
 608                           u32 drv_info)
 609{
 610        struct ath_hw *ah = NULL;
 611        struct ath_common *common;
 612        int i, ret = 0, csz = 0;
 613
 614        ah = kzalloc(sizeof(struct ath_hw), GFP_KERNEL);
 615        if (!ah)
 616                return -ENOMEM;
 617
 618        ah->dev = priv->dev;
 619        ah->hw = priv->hw;
 620        ah->hw_version.devid = devid;
 621        ah->hw_version.usbdev = drv_info;
 622        ah->ah_flags |= AH_USE_EEPROM;
 623        ah->reg_ops.read = ath9k_regread;
 624        ah->reg_ops.multi_read = ath9k_multi_regread;
 625        ah->reg_ops.write = ath9k_regwrite;
 626        ah->reg_ops.enable_write_buffer = ath9k_enable_regwrite_buffer;
 627        ah->reg_ops.write_flush = ath9k_regwrite_flush;
 628        ah->reg_ops.enable_rmw_buffer = ath9k_enable_rmw_buffer;
 629        ah->reg_ops.rmw_flush = ath9k_reg_rmw_flush;
 630        ah->reg_ops.rmw = ath9k_reg_rmw;
 631        priv->ah = ah;
 632
 633        common = ath9k_hw_common(ah);
 634        common->ops = &ah->reg_ops;
 635        common->ps_ops = &ath9k_htc_ps_ops;
 636        common->bus_ops = &ath9k_usb_bus_ops;
 637        common->ah = ah;
 638        common->hw = priv->hw;
 639        common->priv = priv;
 640        common->debug_mask = ath9k_debug;
 641        common->btcoex_enabled = ath9k_htc_btcoex_enable == 1;
 642        set_bit(ATH_OP_INVALID, &common->op_flags);
 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        timer_setup(&priv->tx.cleanup_timer, ath9k_htc_tx_cleanup_timer, 0);
 656
 657        /*
 658         * Cache line size is used to size and align various
 659         * structures used to communicate with the hardware.
 660         */
 661        ath_read_cachesize(common, &csz);
 662        common->cachelsz = csz << 2; /* convert to bytes */
 663
 664        ret = ath9k_hw_init(ah);
 665        if (ret) {
 666                ath_err(common,
 667                        "Unable to initialize hardware; initialization status: %d\n",
 668                        ret);
 669                goto err_hw;
 670        }
 671
 672        ret = ath9k_init_queues(priv);
 673        if (ret)
 674                goto err_queues;
 675
 676        for (i = 0; i < ATH9K_HTC_MAX_BCN_VIF; i++)
 677                priv->beacon.bslot[i] = NULL;
 678        priv->beacon.slottime = 9;
 679
 680        ath9k_cmn_init_channels_rates(common);
 681        ath9k_cmn_init_crypto(ah);
 682        ath9k_init_misc(priv);
 683        ath9k_htc_init_btcoex(priv, product);
 684
 685        return 0;
 686
 687err_queues:
 688        ath9k_hw_deinit(ah);
 689err_hw:
 690
 691        kfree(ah);
 692        priv->ah = NULL;
 693
 694        return ret;
 695}
 696
 697static 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#ifdef CONFIG_MAC80211_MESH
 702                                 BIT(NL80211_IFTYPE_MESH_POINT) |
 703#endif
 704                                 BIT(NL80211_IFTYPE_P2P_GO) },
 705};
 706
 707static const struct ieee80211_iface_combination if_comb = {
 708        .limits = if_limits,
 709        .n_limits = ARRAY_SIZE(if_limits),
 710        .max_interfaces = 2,
 711        .num_different_channels = 1,
 712};
 713
 714static void ath9k_set_hw_capab(struct ath9k_htc_priv *priv,
 715                               struct ieee80211_hw *hw)
 716{
 717        struct ath_hw *ah = priv->ah;
 718        struct ath_common *common = ath9k_hw_common(priv->ah);
 719        struct base_eep_header *pBase;
 720
 721        ieee80211_hw_set(hw, HOST_BROADCAST_PS_BUFFERING);
 722        ieee80211_hw_set(hw, MFP_CAPABLE);
 723        ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
 724        ieee80211_hw_set(hw, PS_NULLFUNC_STACK);
 725        ieee80211_hw_set(hw, RX_INCLUDES_FCS);
 726        ieee80211_hw_set(hw, HAS_RATE_CONTROL);
 727        ieee80211_hw_set(hw, SPECTRUM_MGMT);
 728        ieee80211_hw_set(hw, SIGNAL_DBM);
 729        ieee80211_hw_set(hw, AMPDU_AGGREGATION);
 730        ieee80211_hw_set(hw, DOESNT_SUPPORT_QOS_NDP);
 731
 732        if (ath9k_ps_enable)
 733                ieee80211_hw_set(hw, SUPPORTS_PS);
 734
 735        hw->wiphy->interface_modes =
 736                BIT(NL80211_IFTYPE_STATION) |
 737                BIT(NL80211_IFTYPE_ADHOC) |
 738                BIT(NL80211_IFTYPE_AP) |
 739                BIT(NL80211_IFTYPE_P2P_GO) |
 740                BIT(NL80211_IFTYPE_P2P_CLIENT) |
 741                BIT(NL80211_IFTYPE_MESH_POINT) |
 742                BIT(NL80211_IFTYPE_OCB);
 743
 744        hw->wiphy->iface_combinations = &if_comb;
 745        hw->wiphy->n_iface_combinations = 1;
 746
 747        hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
 748
 749        hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN |
 750                            WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
 751                            WIPHY_FLAG_HAS_CHANNEL_SWITCH;
 752
 753        hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
 754
 755        hw->queues = 4;
 756        hw->max_listen_interval = 1;
 757
 758        hw->vif_data_size = sizeof(struct ath9k_htc_vif);
 759        hw->sta_data_size = sizeof(struct ath9k_htc_sta);
 760
 761        /* tx_frame_hdr is larger than tx_mgmt_hdr anyway */
 762        hw->extra_tx_headroom = sizeof(struct tx_frame_hdr) +
 763                sizeof(struct htc_frame_hdr) + 4;
 764
 765        if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_2GHZ)
 766                hw->wiphy->bands[NL80211_BAND_2GHZ] =
 767                        &common->sbands[NL80211_BAND_2GHZ];
 768        if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_5GHZ)
 769                hw->wiphy->bands[NL80211_BAND_5GHZ] =
 770                        &common->sbands[NL80211_BAND_5GHZ];
 771
 772        ath9k_cmn_reload_chainmask(ah);
 773
 774        pBase = ath9k_htc_get_eeprom_base(priv);
 775        if (pBase) {
 776                hw->wiphy->available_antennas_rx = pBase->rxMask;
 777                hw->wiphy->available_antennas_tx = pBase->txMask;
 778        }
 779
 780        SET_IEEE80211_PERM_ADDR(hw, common->macaddr);
 781
 782        wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_CQM_RSSI_LIST);
 783}
 784
 785static 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        if (priv->fw_version_major == 1 && priv->fw_version_minor < 4)
 820                set_bit(HTC_FWFLAG_NO_RMW, &priv->fw_flags);
 821
 822        dev_info(priv->dev, "FW RMW support: %s\n",
 823                test_bit(HTC_FWFLAG_NO_RMW, &priv->fw_flags) ? "Off" : "On");
 824
 825        return 0;
 826}
 827
 828static int ath9k_init_device(struct ath9k_htc_priv *priv,
 829                             u16 devid, char *product, u32 drv_info)
 830{
 831        struct ieee80211_hw *hw = priv->hw;
 832        struct ath_common *common;
 833        struct ath_hw *ah;
 834        int error = 0;
 835        struct ath_regulatory *reg;
 836        char hw_name[64];
 837
 838        /* Bring up device */
 839        error = ath9k_init_priv(priv, devid, product, drv_info);
 840        if (error != 0)
 841                goto err_init;
 842
 843        ah = priv->ah;
 844        common = ath9k_hw_common(ah);
 845        ath9k_set_hw_capab(priv, hw);
 846
 847        error = ath9k_init_firmware_version(priv);
 848        if (error != 0)
 849                goto err_fw;
 850
 851        /* Initialize regulatory */
 852        error = ath_regd_init(&common->regulatory, priv->hw->wiphy,
 853                              ath9k_reg_notifier);
 854        if (error)
 855                goto err_regd;
 856
 857        reg = &common->regulatory;
 858
 859        /* Setup TX */
 860        error = ath9k_tx_init(priv);
 861        if (error != 0)
 862                goto err_tx;
 863
 864        /* Setup RX */
 865        error = ath9k_rx_init(priv);
 866        if (error != 0)
 867                goto err_rx;
 868
 869        ath9k_hw_disable(priv->ah);
 870#ifdef CONFIG_MAC80211_LEDS
 871        /* must be initialized before ieee80211_register_hw */
 872        priv->led_cdev.default_trigger = ieee80211_create_tpt_led_trigger(priv->hw,
 873                IEEE80211_TPT_LEDTRIG_FL_RADIO, ath9k_htc_tpt_blink,
 874                ARRAY_SIZE(ath9k_htc_tpt_blink));
 875#endif
 876
 877        /* Register with mac80211 */
 878        error = ieee80211_register_hw(hw);
 879        if (error)
 880                goto err_register;
 881
 882        /* Handle world regulatory */
 883        if (!ath_is_world_regd(reg)) {
 884                error = regulatory_hint(hw->wiphy, reg->alpha2);
 885                if (error)
 886                        goto err_world;
 887        }
 888
 889        error = ath9k_htc_init_debug(priv->ah);
 890        if (error) {
 891                ath_err(common, "Unable to create debugfs files\n");
 892                goto err_world;
 893        }
 894
 895        ath_dbg(common, CONFIG,
 896                "WMI:%d, BCN:%d, CAB:%d, UAPSD:%d, MGMT:%d, BE:%d, BK:%d, VI:%d, VO:%d\n",
 897                priv->wmi_cmd_ep,
 898                priv->beacon_ep,
 899                priv->cab_ep,
 900                priv->uapsd_ep,
 901                priv->mgmt_ep,
 902                priv->data_be_ep,
 903                priv->data_bk_ep,
 904                priv->data_vi_ep,
 905                priv->data_vo_ep);
 906
 907        ath9k_hw_name(priv->ah, hw_name, sizeof(hw_name));
 908        wiphy_info(hw->wiphy, "%s\n", hw_name);
 909
 910        ath9k_init_leds(priv);
 911        ath9k_start_rfkill_poll(priv);
 912
 913        return 0;
 914
 915err_world:
 916        ieee80211_unregister_hw(hw);
 917err_register:
 918        ath9k_rx_cleanup(priv);
 919err_rx:
 920        ath9k_tx_cleanup(priv);
 921err_tx:
 922        /* Nothing */
 923err_regd:
 924        /* Nothing */
 925err_fw:
 926        ath9k_deinit_priv(priv);
 927err_init:
 928        return error;
 929}
 930
 931int ath9k_htc_probe_device(struct htc_target *htc_handle, struct device *dev,
 932                           u16 devid, char *product, u32 drv_info)
 933{
 934        struct ieee80211_hw *hw;
 935        struct ath9k_htc_priv *priv;
 936        int ret;
 937
 938        hw = ieee80211_alloc_hw(sizeof(struct ath9k_htc_priv), &ath9k_htc_ops);
 939        if (!hw)
 940                return -ENOMEM;
 941
 942        priv = hw->priv;
 943        priv->hw = hw;
 944        priv->htc = htc_handle;
 945        priv->dev = dev;
 946        htc_handle->drv_priv = priv;
 947        SET_IEEE80211_DEV(hw, priv->dev);
 948
 949        ret = ath9k_htc_wait_for_target(priv);
 950        if (ret)
 951                goto err_free;
 952
 953        priv->wmi = ath9k_init_wmi(priv);
 954        if (!priv->wmi) {
 955                ret = -EINVAL;
 956                goto err_free;
 957        }
 958
 959        ret = ath9k_init_htc_services(priv, devid, drv_info);
 960        if (ret)
 961                goto err_init;
 962
 963        ret = ath9k_init_device(priv, devid, product, drv_info);
 964        if (ret)
 965                goto err_init;
 966
 967        return 0;
 968
 969err_init:
 970        ath9k_deinit_wmi(priv);
 971err_free:
 972        ieee80211_free_hw(hw);
 973        return ret;
 974}
 975
 976void ath9k_htc_disconnect_device(struct htc_target *htc_handle, bool hotunplug)
 977{
 978        if (htc_handle->drv_priv) {
 979
 980                /* Check if the device has been yanked out. */
 981                if (hotunplug)
 982                        htc_handle->drv_priv->ah->ah_flags |= AH_UNPLUGGED;
 983
 984                ath9k_deinit_device(htc_handle->drv_priv);
 985                ath9k_deinit_wmi(htc_handle->drv_priv);
 986                ieee80211_free_hw(htc_handle->drv_priv->hw);
 987        }
 988}
 989
 990#ifdef CONFIG_PM
 991
 992void ath9k_htc_suspend(struct htc_target *htc_handle)
 993{
 994        ath9k_htc_setpower(htc_handle->drv_priv, ATH9K_PM_FULL_SLEEP);
 995}
 996
 997int ath9k_htc_resume(struct htc_target *htc_handle)
 998{
 999        struct ath9k_htc_priv *priv = htc_handle->drv_priv;
1000        int ret;
1001
1002        ret = ath9k_htc_wait_for_target(priv);
1003        if (ret)
1004                return ret;
1005
1006        ret = ath9k_init_htc_services(priv, priv->ah->hw_version.devid,
1007                                      priv->ah->hw_version.usbdev);
1008        ath9k_configure_leds(priv);
1009
1010        return ret;
1011}
1012#endif
1013
1014static int __init ath9k_htc_init(void)
1015{
1016        if (ath9k_hif_usb_init() < 0) {
1017                pr_err("No USB devices found, driver not installed\n");
1018                return -ENODEV;
1019        }
1020
1021        return 0;
1022}
1023module_init(ath9k_htc_init);
1024
1025static void __exit ath9k_htc_exit(void)
1026{
1027        ath9k_hif_usb_exit();
1028        pr_info("Driver unloaded\n");
1029}
1030module_exit(ath9k_htc_exit);
1031