drivers/net/wireless/ath/wcn36xx/main.c

   1 /*
   2  * Copyright (c) 2013 Eugene Krasnikov <k.eugene.e@gmail.com>
   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 ANY
  11  * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
  13  * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
  14  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15  */
  16
  17 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  18
  19 #include <linux/module.h>
  20 #include <linux/firmware.h>
  21 #include <linux/platform_device.h>
  22 #include "wcn36xx.h"
  23
  24 unsigned int wcn36xx_dbg_mask;
  25 module_param_named(debug_mask, wcn36xx_dbg_mask, uint, 0644);
  26 MODULE_PARM_DESC(debug_mask, "Debugging mask");
  27
  28 #define CHAN2G(_freq, _idx) { \
  29         .band = IEEE80211_BAND_2GHZ, \
  30         .center_freq = (_freq), \
  31         .hw_value = (_idx), \
  32         .max_power = 25, \
  33 }
  34
  35 #define CHAN5G(_freq, _idx) { \
  36         .band = IEEE80211_BAND_5GHZ, \
  37         .center_freq = (_freq), \
  38         .hw_value = (_idx), \
  39         .max_power = 25, \
  40 }
  41
  42 /* The wcn firmware expects channel values to matching
  43  * their mnemonic values. So use these for .hw_value. */
  44 static struct ieee80211_channel wcn_2ghz_channels[] = {
  45         CHAN2G(2412, 1), /* Channel 1 */
  46         CHAN2G(2417, 2), /* Channel 2 */
  47         CHAN2G(2422, 3), /* Channel 3 */
  48         CHAN2G(2427, 4), /* Channel 4 */
  49         CHAN2G(2432, 5), /* Channel 5 */
  50         CHAN2G(2437, 6), /* Channel 6 */
  51         CHAN2G(2442, 7), /* Channel 7 */
  52         CHAN2G(2447, 8), /* Channel 8 */
  53         CHAN2G(2452, 9), /* Channel 9 */
  54         CHAN2G(2457, 10), /* Channel 10 */
  55         CHAN2G(2462, 11), /* Channel 11 */
  56         CHAN2G(2467, 12), /* Channel 12 */
  57         CHAN2G(2472, 13), /* Channel 13 */
  58         CHAN2G(2484, 14)  /* Channel 14 */
  59
  60 };
  61
  62 static struct ieee80211_channel wcn_5ghz_channels[] = {
  63         CHAN5G(5180, 36),
  64         CHAN5G(5200, 40),
  65         CHAN5G(5220, 44),
  66         CHAN5G(5240, 48),
  67         CHAN5G(5260, 52),
  68         CHAN5G(5280, 56),
  69         CHAN5G(5300, 60),
  70         CHAN5G(5320, 64),
  71         CHAN5G(5500, 100),
  72         CHAN5G(5520, 104),
  73         CHAN5G(5540, 108),
  74         CHAN5G(5560, 112),
  75         CHAN5G(5580, 116),
  76         CHAN5G(5600, 120),
  77         CHAN5G(5620, 124),
  78         CHAN5G(5640, 128),
  79         CHAN5G(5660, 132),
  80         CHAN5G(5700, 140),
  81         CHAN5G(5745, 149),
  82         CHAN5G(5765, 153),
  83         CHAN5G(5785, 157),
  84         CHAN5G(5805, 161),
  85         CHAN5G(5825, 165)
  86 };
  87
  88 #define RATE(_bitrate, _hw_rate, _flags) { \
  89         .bitrate        = (_bitrate),                   \
  90         .flags          = (_flags),                     \
  91         .hw_value       = (_hw_rate),                   \
  92         .hw_value_short = (_hw_rate)  \
  93 }
  94
  95 static struct ieee80211_rate wcn_2ghz_rates[] = {
  96         RATE(10, HW_RATE_INDEX_1MBPS, 0),
  97         RATE(20, HW_RATE_INDEX_2MBPS, IEEE80211_RATE_SHORT_PREAMBLE),
  98         RATE(55, HW_RATE_INDEX_5_5MBPS, IEEE80211_RATE_SHORT_PREAMBLE),
  99         RATE(110, HW_RATE_INDEX_11MBPS, IEEE80211_RATE_SHORT_PREAMBLE),
 100         RATE(60, HW_RATE_INDEX_6MBPS, 0),
 101         RATE(90, HW_RATE_INDEX_9MBPS, 0),
 102         RATE(120, HW_RATE_INDEX_12MBPS, 0),
 103         RATE(180, HW_RATE_INDEX_18MBPS, 0),
 104         RATE(240, HW_RATE_INDEX_24MBPS, 0),
 105         RATE(360, HW_RATE_INDEX_36MBPS, 0),
 106         RATE(480, HW_RATE_INDEX_48MBPS, 0),
 107         RATE(540, HW_RATE_INDEX_54MBPS, 0)
 108 };
 109
 110 static struct ieee80211_rate wcn_5ghz_rates[] = {
 111         RATE(60, HW_RATE_INDEX_6MBPS, 0),
 112         RATE(90, HW_RATE_INDEX_9MBPS, 0),
 113         RATE(120, HW_RATE_INDEX_12MBPS, 0),
 114         RATE(180, HW_RATE_INDEX_18MBPS, 0),
 115         RATE(240, HW_RATE_INDEX_24MBPS, 0),
 116         RATE(360, HW_RATE_INDEX_36MBPS, 0),
 117         RATE(480, HW_RATE_INDEX_48MBPS, 0),
 118         RATE(540, HW_RATE_INDEX_54MBPS, 0)
 119 };
 120
 121 static struct ieee80211_supported_band wcn_band_2ghz = {
 122         .channels       = wcn_2ghz_channels,
 123         .n_channels     = ARRAY_SIZE(wcn_2ghz_channels),
 124         .bitrates       = wcn_2ghz_rates,
 125         .n_bitrates     = ARRAY_SIZE(wcn_2ghz_rates),
 126         .ht_cap         = {
 127                 .cap =  IEEE80211_HT_CAP_GRN_FLD |
 128                         IEEE80211_HT_CAP_SGI_20 |
 129                         IEEE80211_HT_CAP_DSSSCCK40 |
 130                         IEEE80211_HT_CAP_LSIG_TXOP_PROT,
 131                 .ht_supported = true,
 132                 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
 133                 .ampdu_density = IEEE80211_HT_MPDU_DENSITY_16,
 134                 .mcs = {
 135                         .rx_mask = { 0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0, },
 136                         .rx_highest = cpu_to_le16(72),
 137                         .tx_params = IEEE80211_HT_MCS_TX_DEFINED,
 138                 }
 139         }
 140 };
 141
 142 static struct ieee80211_supported_band wcn_band_5ghz = {
 143         .channels       = wcn_5ghz_channels,
 144         .n_channels     = ARRAY_SIZE(wcn_5ghz_channels),
 145         .bitrates       = wcn_5ghz_rates,
 146         .n_bitrates     = ARRAY_SIZE(wcn_5ghz_rates),
 147         .ht_cap         = {
 148                 .cap =  IEEE80211_HT_CAP_GRN_FLD |
 149                         IEEE80211_HT_CAP_SGI_20 |
 150                         IEEE80211_HT_CAP_DSSSCCK40 |
 151                         IEEE80211_HT_CAP_LSIG_TXOP_PROT |
 152                         IEEE80211_HT_CAP_SGI_40 |
 153                         IEEE80211_HT_CAP_SUP_WIDTH_20_40,
 154                 .ht_supported = true,
 155                 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
 156                 .ampdu_density = IEEE80211_HT_MPDU_DENSITY_16,
 157                 .mcs = {
 158                         .rx_mask = { 0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0, },
 159                         .rx_highest = cpu_to_le16(72),
 160                         .tx_params = IEEE80211_HT_MCS_TX_DEFINED,
 161                 }
 162         }
 163 };
 164
 165 #ifdef CONFIG_PM
 166
 167 static const struct wiphy_wowlan_support wowlan_support = {
 168         .flags = WIPHY_WOWLAN_ANY
 169 };
 170
 171 #endif
 172
 173 static inline u8 get_sta_index(struct ieee80211_vif *vif,
 174                                struct wcn36xx_sta *sta_priv)
 175 {
 176         return NL80211_IFTYPE_STATION == vif->type ?
 177                sta_priv->bss_sta_index :
 178                sta_priv->sta_index;
 179 }
 180
 181 static const char * const wcn36xx_caps_names[] = {
 182         "MCC",                          /* 0 */
 183         "P2P",                          /* 1 */
 184         "DOT11AC",                      /* 2 */
 185         "SLM_SESSIONIZATION",           /* 3 */
 186         "DOT11AC_OPMODE",               /* 4 */
 187         "SAP32STA",                     /* 5 */
 188         "TDLS",                         /* 6 */
 189         "P2P_GO_NOA_DECOUPLE_INIT_SCAN",/* 7 */
 190         "WLANACTIVE_OFFLOAD",           /* 8 */
 191         "BEACON_OFFLOAD",               /* 9 */
 192         "SCAN_OFFLOAD",                 /* 10 */
 193         "ROAM_OFFLOAD",                 /* 11 */
 194         "BCN_MISS_OFFLOAD",             /* 12 */
 195         "STA_POWERSAVE",                /* 13 */
 196         "STA_ADVANCED_PWRSAVE",         /* 14 */
 197         "AP_UAPSD",                     /* 15 */
 198         "AP_DFS",                       /* 16 */
 199         "BLOCKACK",                     /* 17 */
 200         "PHY_ERR",                      /* 18 */
 201         "BCN_FILTER",                   /* 19 */
 202         "RTT",                          /* 20 */
 203         "RATECTRL",                     /* 21 */
 204         "WOW"                           /* 22 */
 205 };
 206
 207 static const char *wcn36xx_get_cap_name(enum place_holder_in_cap_bitmap x)
 208 {
 209         if (x >= ARRAY_SIZE(wcn36xx_caps_names))
 210                 return "UNKNOWN";
 211         return wcn36xx_caps_names[x];
 212 }
 213
 214 static void wcn36xx_feat_caps_info(struct wcn36xx *wcn)
 215 {
 216         int i;
 217
 218         for (i = 0; i < MAX_FEATURE_SUPPORTED; i++) {
 219                 if (get_feat_caps(wcn->fw_feat_caps, i))
 220                         wcn36xx_info("FW Cap %s\n", wcn36xx_get_cap_name(i));
 221         }
 222 }
 223
 224 static int wcn36xx_start(struct ieee80211_hw *hw)
 225 {
 226         struct wcn36xx *wcn = hw->priv;
 227         int ret;
 228
 229         wcn36xx_dbg(WCN36XX_DBG_MAC, "mac start\n");
 230
 231         /* SMD initialization */
 232         ret = wcn36xx_smd_open(wcn);
 233         if (ret) {
 234                 wcn36xx_err("Failed to open smd channel: %d\n", ret);
 235                 goto out_err;
 236         }
 237
 238         /* Allocate memory pools for Mgmt BD headers and Data BD headers */
 239         ret = wcn36xx_dxe_allocate_mem_pools(wcn);
 240         if (ret) {
 241                 wcn36xx_err("Failed to alloc DXE mempool: %d\n", ret);
 242                 goto out_smd_close;
 243         }
 244
 245         ret = wcn36xx_dxe_alloc_ctl_blks(wcn);
 246         if (ret) {
 247                 wcn36xx_err("Failed to alloc DXE ctl blocks: %d\n", ret);
 248                 goto out_free_dxe_pool;
 249         }
 250
 251         wcn->hal_buf = kmalloc(WCN36XX_HAL_BUF_SIZE, GFP_KERNEL);
 252         if (!wcn->hal_buf) {
 253                 wcn36xx_err("Failed to allocate smd buf\n");
 254                 ret = -ENOMEM;
 255                 goto out_free_dxe_ctl;
 256         }
 257
 258         ret = wcn36xx_smd_load_nv(wcn);
 259         if (ret) {
 260                 wcn36xx_err("Failed to push NV to chip\n");
 261                 goto out_free_smd_buf;
 262         }
 263
 264         ret = wcn36xx_smd_start(wcn);
 265         if (ret) {
 266                 wcn36xx_err("Failed to start chip\n");
 267                 goto out_free_smd_buf;
 268         }
 269
 270         /* DMA channel initialization */
 271         ret = wcn36xx_dxe_init(wcn);
 272         if (ret) {
 273                 wcn36xx_err("DXE init failed\n");
 274                 goto out_smd_stop;
 275         }
 276
 277         wcn36xx_debugfs_init(wcn);
 278
 279         if (!wcn36xx_is_fw_version(wcn, 1, 2, 2, 24)) {
 280                 ret = wcn36xx_smd_feature_caps_exchange(wcn);
 281                 if (ret)
 282                         wcn36xx_warn("Exchange feature caps failed\n");
 283                 else
 284                         wcn36xx_feat_caps_info(wcn);
 285         }
 286         INIT_LIST_HEAD(&wcn->vif_list);
 287         return 0;
 288
 289 out_smd_stop:
 290         wcn36xx_smd_stop(wcn);
 291 out_free_smd_buf:
 292         kfree(wcn->hal_buf);
 293 out_free_dxe_pool:
 294         wcn36xx_dxe_free_mem_pools(wcn);
 295 out_free_dxe_ctl:
 296         wcn36xx_dxe_free_ctl_blks(wcn);
 297 out_smd_close:
 298         wcn36xx_smd_close(wcn);
 299 out_err:
 300         return ret;
 301 }
 302
 303 static void wcn36xx_stop(struct ieee80211_hw *hw)
 304 {
 305         struct wcn36xx *wcn = hw->priv;
 306
 307         wcn36xx_dbg(WCN36XX_DBG_MAC, "mac stop\n");
 308
 309         wcn36xx_debugfs_exit(wcn);
 310         wcn36xx_smd_stop(wcn);
 311         wcn36xx_dxe_deinit(wcn);
 312         wcn36xx_smd_close(wcn);
 313
 314         wcn36xx_dxe_free_mem_pools(wcn);
 315         wcn36xx_dxe_free_ctl_blks(wcn);
 316
 317         kfree(wcn->hal_buf);
 318 }
 319
 320 static int wcn36xx_config(struct ieee80211_hw *hw, u32 changed)
 321 {
 322         struct wcn36xx *wcn = hw->priv;
 323         struct ieee80211_vif *vif = NULL;
 324         struct wcn36xx_vif *tmp;
 325
 326         wcn36xx_dbg(WCN36XX_DBG_MAC, "mac config changed 0x%08x\n", changed);
 327
 328         if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
 329                 int ch = WCN36XX_HW_CHANNEL(wcn);
 330                 wcn36xx_dbg(WCN36XX_DBG_MAC, "wcn36xx_config channel switch=%d\n",
 331                             ch);
 332                 list_for_each_entry(tmp, &wcn->vif_list, list) {
 333                         vif = container_of((void *)tmp,
 334                                            struct ieee80211_vif,
 335                                            drv_priv);
 336                         wcn36xx_smd_switch_channel(wcn, vif, ch);
 337                 }
 338         }
 339
 340         return 0;
 341 }
 342
 343 #define WCN36XX_SUPPORTED_FILTERS (0)
 344
 345 static void wcn36xx_configure_filter(struct ieee80211_hw *hw,
 346                                      unsigned int changed,
 347                                      unsigned int *total, u64 multicast)
 348 {
 349         wcn36xx_dbg(WCN36XX_DBG_MAC, "mac configure filter\n");
 350
 351         *total &= WCN36XX_SUPPORTED_FILTERS;
 352 }
 353
 354 static void wcn36xx_tx(struct ieee80211_hw *hw,
 355                        struct ieee80211_tx_control *control,
 356                        struct sk_buff *skb)
 357 {
 358         struct wcn36xx *wcn = hw->priv;
 359         struct wcn36xx_sta *sta_priv = NULL;
 360
 361         if (control->sta)
 362                 sta_priv = (struct wcn36xx_sta *)control->sta->drv_priv;
 363
 364         if (wcn36xx_start_tx(wcn, sta_priv, skb))
 365                 ieee80211_free_txskb(wcn->hw, skb);
 366 }
 367
 368 static int wcn36xx_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 369                            struct ieee80211_vif *vif,
 370                            struct ieee80211_sta *sta,
 371                            struct ieee80211_key_conf *key_conf)
 372 {
 373         struct wcn36xx *wcn = hw->priv;
 374         struct wcn36xx_vif *vif_priv = (struct wcn36xx_vif *)vif->drv_priv;
 375         struct wcn36xx_sta *sta_priv = vif_priv->sta;
 376         int ret = 0;
 377         u8 key[WLAN_MAX_KEY_LEN];
 378
 379         wcn36xx_dbg(WCN36XX_DBG_MAC, "mac80211 set key\n");
 380         wcn36xx_dbg(WCN36XX_DBG_MAC, "Key: cmd=0x%x algo:0x%x, id:%d, len:%d flags 0x%x\n",
 381                     cmd, key_conf->cipher, key_conf->keyidx,
 382                     key_conf->keylen, key_conf->flags);
 383         wcn36xx_dbg_dump(WCN36XX_DBG_MAC, "KEY: ",
 384                          key_conf->key,
 385                          key_conf->keylen);
 386
 387         switch (key_conf->cipher) {
 388         case WLAN_CIPHER_SUITE_WEP40:
 389                 vif_priv->encrypt_type = WCN36XX_HAL_ED_WEP40;
 390                 break;
 391         case WLAN_CIPHER_SUITE_WEP104:
 392                 vif_priv->encrypt_type = WCN36XX_HAL_ED_WEP40;
 393                 break;
 394         case WLAN_CIPHER_SUITE_CCMP:
 395                 vif_priv->encrypt_type = WCN36XX_HAL_ED_CCMP;
 396                 break;
 397         case WLAN_CIPHER_SUITE_TKIP:
 398                 vif_priv->encrypt_type = WCN36XX_HAL_ED_TKIP;
 399                 break;
 400         default:
 401                 wcn36xx_err("Unsupported key type 0x%x\n",
 402                               key_conf->cipher);
 403                 ret = -EOPNOTSUPP;
 404                 goto out;
 405         }
 406
 407         switch (cmd) {
 408         case SET_KEY:
 409                 if (WCN36XX_HAL_ED_TKIP == vif_priv->encrypt_type) {
 410                         /*
 411                          * Supplicant is sending key in the wrong order:
 412                          * Temporal Key (16 b) - TX MIC (8 b) - RX MIC (8 b)
 413                          * but HW expects it to be in the order as described in
 414                          * IEEE 802.11 spec (see chapter 11.7) like this:
 415                          * Temporal Key (16 b) - RX MIC (8 b) - TX MIC (8 b)
 416                          */
 417                         memcpy(key, key_conf->key, 16);
 418                         memcpy(key + 16, key_conf->key + 24, 8);
 419                         memcpy(key + 24, key_conf->key + 16, 8);
 420                 } else {
 421                         memcpy(key, key_conf->key, key_conf->keylen);
 422                 }
 423
 424                 if (IEEE80211_KEY_FLAG_PAIRWISE & key_conf->flags) {
 425                         sta_priv->is_data_encrypted = true;
 426                         /* Reconfigure bss with encrypt_type */
 427                         if (NL80211_IFTYPE_STATION == vif->type)
 428                                 wcn36xx_smd_config_bss(wcn,
 429                                                        vif,
 430                                                        sta,
 431                                                        sta->addr,
 432                                                        true);
 433
 434                         wcn36xx_smd_set_stakey(wcn,
 435                                 vif_priv->encrypt_type,
 436                                 key_conf->keyidx,
 437                                 key_conf->keylen,
 438                                 key,
 439                                 get_sta_index(vif, sta_priv));
 440                 } else {
 441                         wcn36xx_smd_set_bsskey(wcn,
 442                                 vif_priv->encrypt_type,
 443                                 key_conf->keyidx,
 444                                 key_conf->keylen,
 445                                 key);
 446                         if ((WLAN_CIPHER_SUITE_WEP40 == key_conf->cipher) ||
 447                             (WLAN_CIPHER_SUITE_WEP104 == key_conf->cipher)) {
 448                                 sta_priv->is_data_encrypted = true;
 449                                 wcn36xx_smd_set_stakey(wcn,
 450                                         vif_priv->encrypt_type,
 451                                         key_conf->keyidx,
 452                                         key_conf->keylen,
 453                                         key,
 454                                         get_sta_index(vif, sta_priv));
 455                         }
 456                 }
 457                 break;
 458         case DISABLE_KEY:
 459                 if (!(IEEE80211_KEY_FLAG_PAIRWISE & key_conf->flags)) {
 460                         wcn36xx_smd_remove_bsskey(wcn,
 461                                 vif_priv->encrypt_type,
 462                                 key_conf->keyidx);
 463                 } else {
 464                         sta_priv->is_data_encrypted = false;
 465                         /* do not remove key if disassociated */
 466                         if (sta_priv->aid)
 467                                 wcn36xx_smd_remove_stakey(wcn,
 468                                         vif_priv->encrypt_type,
 469                                         key_conf->keyidx,
 470                                         get_sta_index(vif, sta_priv));
 471                 }
 472                 break;
 473         default:
 474                 wcn36xx_err("Unsupported key cmd 0x%x\n", cmd);
 475                 ret = -EOPNOTSUPP;
 476                 goto out;
 477                 break;
 478         }
 479
 480 out:
 481         return ret;
 482 }
 483
 484 static void wcn36xx_sw_scan_start(struct ieee80211_hw *hw)
 485 {
 486         struct wcn36xx *wcn = hw->priv;
 487
 488         wcn36xx_smd_init_scan(wcn, HAL_SYS_MODE_SCAN);
 489         wcn36xx_smd_start_scan(wcn);
 490 }
 491
 492 static void wcn36xx_sw_scan_complete(struct ieee80211_hw *hw)
 493 {
 494         struct wcn36xx *wcn = hw->priv;
 495
 496         wcn36xx_smd_end_scan(wcn);
 497         wcn36xx_smd_finish_scan(wcn, HAL_SYS_MODE_SCAN);
 498 }
 499
 500 static void wcn36xx_update_allowed_rates(struct ieee80211_sta *sta,
 501                                          enum ieee80211_band band)
 502 {
 503         int i, size;
 504         u16 *rates_table;
 505         struct wcn36xx_sta *sta_priv = (struct wcn36xx_sta *)sta->drv_priv;
 506         u32 rates = sta->supp_rates[band];
 507
 508         memset(&sta_priv->supported_rates, 0,
 509                 sizeof(sta_priv->supported_rates));
 510         sta_priv->supported_rates.op_rate_mode = STA_11n;
 511
 512         size = ARRAY_SIZE(sta_priv->supported_rates.dsss_rates);
 513         rates_table = sta_priv->supported_rates.dsss_rates;
 514         if (band == IEEE80211_BAND_2GHZ) {
 515                 for (i = 0; i < size; i++) {
 516                         if (rates & 0x01) {
 517                                 rates_table[i] = wcn_2ghz_rates[i].hw_value;
 518                                 rates = rates >> 1;
 519                         }
 520                 }
 521         }
 522
 523         size = ARRAY_SIZE(sta_priv->supported_rates.ofdm_rates);
 524         rates_table = sta_priv->supported_rates.ofdm_rates;
 525         for (i = 0; i < size; i++) {
 526                 if (rates & 0x01) {
 527                         rates_table[i] = wcn_5ghz_rates[i].hw_value;
 528                         rates = rates >> 1;
 529                 }
 530         }
 531
 532         if (sta->ht_cap.ht_supported) {
 533                 BUILD_BUG_ON(sizeof(sta->ht_cap.mcs.rx_mask) >
 534                         sizeof(sta_priv->supported_rates.supported_mcs_set));
 535                 memcpy(sta_priv->supported_rates.supported_mcs_set,
 536                        sta->ht_cap.mcs.rx_mask,
 537                        sizeof(sta->ht_cap.mcs.rx_mask));
 538         }
 539 }
 540 void wcn36xx_set_default_rates(struct wcn36xx_hal_supported_rates *rates)
 541 {
 542         u16 ofdm_rates[WCN36XX_HAL_NUM_OFDM_RATES] = {
 543                 HW_RATE_INDEX_6MBPS,
 544                 HW_RATE_INDEX_9MBPS,
 545                 HW_RATE_INDEX_12MBPS,
 546                 HW_RATE_INDEX_18MBPS,
 547                 HW_RATE_INDEX_24MBPS,
 548                 HW_RATE_INDEX_36MBPS,
 549                 HW_RATE_INDEX_48MBPS,
 550                 HW_RATE_INDEX_54MBPS
 551         };
 552         u16 dsss_rates[WCN36XX_HAL_NUM_DSSS_RATES] = {
 553                 HW_RATE_INDEX_1MBPS,
 554                 HW_RATE_INDEX_2MBPS,
 555                 HW_RATE_INDEX_5_5MBPS,
 556                 HW_RATE_INDEX_11MBPS
 557         };
 558
 559         rates->op_rate_mode = STA_11n;
 560         memcpy(rates->dsss_rates, dsss_rates,
 561                 sizeof(*dsss_rates) * WCN36XX_HAL_NUM_DSSS_RATES);
 562         memcpy(rates->ofdm_rates, ofdm_rates,
 563                 sizeof(*ofdm_rates) * WCN36XX_HAL_NUM_OFDM_RATES);
 564         rates->supported_mcs_set[0] = 0xFF;
 565 }
 566 static void wcn36xx_bss_info_changed(struct ieee80211_hw *hw,
 567                                      struct ieee80211_vif *vif,
 568                                      struct ieee80211_bss_conf *bss_conf,
 569                                      u32 changed)
 570 {
 571         struct wcn36xx *wcn = hw->priv;
 572         struct sk_buff *skb = NULL;
 573         u16 tim_off, tim_len;
 574         enum wcn36xx_hal_link_state link_state;
 575         struct wcn36xx_vif *vif_priv = (struct wcn36xx_vif *)vif->drv_priv;
 576
 577         wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss info changed vif %p changed 0x%08x\n",
 578                     vif, changed);
 579
 580         if (changed & BSS_CHANGED_BEACON_INFO) {
 581                 wcn36xx_dbg(WCN36XX_DBG_MAC,
 582                             "mac bss changed dtim period %d\n",
 583                             bss_conf->dtim_period);
 584
 585                 vif_priv->dtim_period = bss_conf->dtim_period;
 586         }
 587
 588         if (changed & BSS_CHANGED_PS) {
 589                 wcn36xx_dbg(WCN36XX_DBG_MAC,
 590                             "mac bss PS set %d\n",
 591                             bss_conf->ps);
 592                 if (bss_conf->ps) {
 593                         wcn36xx_pmc_enter_bmps_state(wcn, vif);
 594                 } else {
 595                         wcn36xx_pmc_exit_bmps_state(wcn, vif);
 596                 }
 597         }
 598
 599         if (changed & BSS_CHANGED_BSSID) {
 600                 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss changed_bssid %pM\n",
 601                             bss_conf->bssid);
 602
 603                 if (!is_zero_ether_addr(bss_conf->bssid)) {
 604                         vif_priv->is_joining = true;
 605                         vif_priv->bss_index = 0xff;
 606                         wcn36xx_smd_join(wcn, bss_conf->bssid,
 607                                          vif->addr, WCN36XX_HW_CHANNEL(wcn));
 608                         wcn36xx_smd_config_bss(wcn, vif, NULL,
 609                                                bss_conf->bssid, false);
 610                 } else {
 611                         vif_priv->is_joining = false;
 612                         wcn36xx_smd_delete_bss(wcn, vif);
 613                 }
 614         }
 615
 616         if (changed & BSS_CHANGED_SSID) {
 617                 wcn36xx_dbg(WCN36XX_DBG_MAC,
 618                             "mac bss changed ssid\n");
 619                 wcn36xx_dbg_dump(WCN36XX_DBG_MAC, "ssid ",
 620                                  bss_conf->ssid, bss_conf->ssid_len);
 621
 622                 vif_priv->ssid.length = bss_conf->ssid_len;
 623                 memcpy(&vif_priv->ssid.ssid,
 624                        bss_conf->ssid,
 625                        bss_conf->ssid_len);
 626         }
 627
 628         if (changed & BSS_CHANGED_ASSOC) {
 629                 vif_priv->is_joining = false;
 630                 if (bss_conf->assoc) {
 631                         struct ieee80211_sta *sta;
 632                         struct wcn36xx_sta *sta_priv;
 633
 634                         wcn36xx_dbg(WCN36XX_DBG_MAC,
 635                                     "mac assoc bss %pM vif %pM AID=%d\n",
 636                                      bss_conf->bssid,
 637                                      vif->addr,
 638                                      bss_conf->aid);
 639
 640                         rcu_read_lock();
 641                         sta = ieee80211_find_sta(vif, bss_conf->bssid);
 642                         if (!sta) {
 643                                 wcn36xx_err("sta %pM is not found\n",
 644                                               bss_conf->bssid);
 645                                 rcu_read_unlock();
 646                                 goto out;
 647                         }
 648                         sta_priv = (struct wcn36xx_sta *)sta->drv_priv;
 649
 650                         wcn36xx_update_allowed_rates(sta, WCN36XX_BAND(wcn));
 651
 652                         wcn36xx_smd_set_link_st(wcn, bss_conf->bssid,
 653                                 vif->addr,
 654                                 WCN36XX_HAL_LINK_POSTASSOC_STATE);
 655                         wcn36xx_smd_config_bss(wcn, vif, sta,
 656                                                bss_conf->bssid,
 657                                                true);
 658                         sta_priv->aid = bss_conf->aid;
 659                         /*
 660                          * config_sta must be called from  because this is the
 661                          * place where AID is available.
 662                          */
 663                         wcn36xx_smd_config_sta(wcn, vif, sta);
 664                         rcu_read_unlock();
 665                 } else {
 666                         wcn36xx_dbg(WCN36XX_DBG_MAC,
 667                                     "disassociated bss %pM vif %pM AID=%d\n",
 668                                     bss_conf->bssid,
 669                                     vif->addr,
 670                                     bss_conf->aid);
 671                         wcn36xx_smd_set_link_st(wcn,
 672                                                 bss_conf->bssid,
 673                                                 vif->addr,
 674                                                 WCN36XX_HAL_LINK_IDLE_STATE);
 675                 }
 676         }
 677
 678         if (changed & BSS_CHANGED_AP_PROBE_RESP) {
 679                 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss changed ap probe resp\n");
 680                 skb = ieee80211_proberesp_get(hw, vif);
 681                 if (!skb) {
 682                         wcn36xx_err("failed to alloc probereq skb\n");
 683                         goto out;
 684                 }
 685
 686                 wcn36xx_smd_update_proberesp_tmpl(wcn, vif, skb);
 687                 dev_kfree_skb(skb);
 688         }
 689
 690         if (changed & BSS_CHANGED_BEACON_ENABLED ||
 691             changed & BSS_CHANGED_BEACON) {
 692                 wcn36xx_dbg(WCN36XX_DBG_MAC,
 693                             "mac bss changed beacon enabled %d\n",
 694                             bss_conf->enable_beacon);
 695
 696                 if (bss_conf->enable_beacon) {
 697                         vif_priv->bss_index = 0xff;
 698                         wcn36xx_smd_config_bss(wcn, vif, NULL,
 699                                                vif->addr, false);
 700                         skb = ieee80211_beacon_get_tim(hw, vif, &tim_off,
 701                                                        &tim_len);
 702                         if (!skb) {
 703                                 wcn36xx_err("failed to alloc beacon skb\n");
 704                                 goto out;
 705                         }
 706                         wcn36xx_smd_send_beacon(wcn, vif, skb, tim_off, 0);
 707                         dev_kfree_skb(skb);
 708
 709                         if (vif->type == NL80211_IFTYPE_ADHOC ||
 710                             vif->type == NL80211_IFTYPE_MESH_POINT)
 711                                 link_state = WCN36XX_HAL_LINK_IBSS_STATE;
 712                         else
 713                                 link_state = WCN36XX_HAL_LINK_AP_STATE;
 714
 715                         wcn36xx_smd_set_link_st(wcn, vif->addr, vif->addr,
 716                                                 link_state);
 717                 } else {
 718                         wcn36xx_smd_set_link_st(wcn, vif->addr, vif->addr,
 719                                                 WCN36XX_HAL_LINK_IDLE_STATE);
 720                         wcn36xx_smd_delete_bss(wcn, vif);
 721                 }
 722         }
 723 out:
 724         return;
 725 }
 726
 727 /* this is required when using IEEE80211_HW_HAS_RATE_CONTROL */
 728 static int wcn36xx_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
 729 {
 730         struct wcn36xx *wcn = hw->priv;
 731         wcn36xx_dbg(WCN36XX_DBG_MAC, "mac set RTS threshold %d\n", value);
 732
 733         wcn36xx_smd_update_cfg(wcn, WCN36XX_HAL_CFG_RTS_THRESHOLD, value);
 734         return 0;
 735 }
 736
 737 static void wcn36xx_remove_interface(struct ieee80211_hw *hw,
 738                                      struct ieee80211_vif *vif)
 739 {
 740         struct wcn36xx *wcn = hw->priv;
 741         struct wcn36xx_vif *vif_priv = (struct wcn36xx_vif *)vif->drv_priv;
 742         wcn36xx_dbg(WCN36XX_DBG_MAC, "mac remove interface vif %p\n", vif);
 743
 744         list_del(&vif_priv->list);
 745         wcn36xx_smd_delete_sta_self(wcn, vif->addr);
 746 }
 747
 748 static int wcn36xx_add_interface(struct ieee80211_hw *hw,
 749                                  struct ieee80211_vif *vif)
 750 {
 751         struct wcn36xx *wcn = hw->priv;
 752         struct wcn36xx_vif *vif_priv = (struct wcn36xx_vif *)vif->drv_priv;
 753
 754         wcn36xx_dbg(WCN36XX_DBG_MAC, "mac add interface vif %p type %d\n",
 755                     vif, vif->type);
 756
 757         if (!(NL80211_IFTYPE_STATION == vif->type ||
 758               NL80211_IFTYPE_AP == vif->type ||
 759               NL80211_IFTYPE_ADHOC == vif->type ||
 760               NL80211_IFTYPE_MESH_POINT == vif->type)) {
 761                 wcn36xx_warn("Unsupported interface type requested: %d\n",
 762                              vif->type);
 763                 return -EOPNOTSUPP;
 764         }
 765
 766         list_add(&vif_priv->list, &wcn->vif_list);
 767         wcn36xx_smd_add_sta_self(wcn, vif);
 768
 769         return 0;
 770 }
 771
 772 static int wcn36xx_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 773                            struct ieee80211_sta *sta)
 774 {
 775         struct wcn36xx *wcn = hw->priv;
 776         struct wcn36xx_vif *vif_priv = (struct wcn36xx_vif *)vif->drv_priv;
 777         struct wcn36xx_sta *sta_priv = (struct wcn36xx_sta *)sta->drv_priv;
 778         wcn36xx_dbg(WCN36XX_DBG_MAC, "mac sta add vif %p sta %pM\n",
 779                     vif, sta->addr);
 780
 781         vif_priv->sta = sta_priv;
 782         sta_priv->vif = vif_priv;
 783         /*
 784          * For STA mode HW will be configured on BSS_CHANGED_ASSOC because
 785          * at this stage AID is not available yet.
 786          */
 787         if (NL80211_IFTYPE_STATION != vif->type) {
 788                 wcn36xx_update_allowed_rates(sta, WCN36XX_BAND(wcn));
 789                 sta_priv->aid = sta->aid;
 790                 wcn36xx_smd_config_sta(wcn, vif, sta);
 791         }
 792         return 0;
 793 }
 794
 795 static int wcn36xx_sta_remove(struct ieee80211_hw *hw,
 796                               struct ieee80211_vif *vif,
 797                               struct ieee80211_sta *sta)
 798 {
 799         struct wcn36xx *wcn = hw->priv;
 800         struct wcn36xx_vif *vif_priv = (struct wcn36xx_vif *)vif->drv_priv;
 801         struct wcn36xx_sta *sta_priv = (struct wcn36xx_sta *)sta->drv_priv;
 802
 803         wcn36xx_dbg(WCN36XX_DBG_MAC, "mac sta remove vif %p sta %pM index %d\n",
 804                     vif, sta->addr, sta_priv->sta_index);
 805
 806         wcn36xx_smd_delete_sta(wcn, sta_priv->sta_index);
 807         vif_priv->sta = NULL;
 808         sta_priv->vif = NULL;
 809         return 0;
 810 }
 811
 812 #ifdef CONFIG_PM
 813
 814 static int wcn36xx_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wow)
 815 {
 816         struct wcn36xx *wcn = hw->priv;
 817
 818         wcn36xx_dbg(WCN36XX_DBG_MAC, "mac suspend\n");
 819
 820         flush_workqueue(wcn->hal_ind_wq);
 821         wcn36xx_smd_set_power_params(wcn, true);
 822         return 0;
 823 }
 824
 825 static int wcn36xx_resume(struct ieee80211_hw *hw)
 826 {
 827         struct wcn36xx *wcn = hw->priv;
 828
 829         wcn36xx_dbg(WCN36XX_DBG_MAC, "mac resume\n");
 830
 831         flush_workqueue(wcn->hal_ind_wq);
 832         wcn36xx_smd_set_power_params(wcn, false);
 833         return 0;
 834 }
 835
 836 #endif
 837
 838 static int wcn36xx_ampdu_action(struct ieee80211_hw *hw,
 839                     struct ieee80211_vif *vif,
 840                     enum ieee80211_ampdu_mlme_action action,
 841                     struct ieee80211_sta *sta, u16 tid, u16 *ssn,
 842                     u8 buf_size)
 843 {
 844         struct wcn36xx *wcn = hw->priv;
 845         struct wcn36xx_sta *sta_priv = NULL;
 846
 847         wcn36xx_dbg(WCN36XX_DBG_MAC, "mac ampdu action action %d tid %d\n",
 848                     action, tid);
 849
 850         sta_priv = (struct wcn36xx_sta *)sta->drv_priv;
 851
 852         switch (action) {
 853         case IEEE80211_AMPDU_RX_START:
 854                 sta_priv->tid = tid;
 855                 wcn36xx_smd_add_ba_session(wcn, sta, tid, ssn, 0,
 856                         get_sta_index(vif, sta_priv));
 857                 wcn36xx_smd_add_ba(wcn);
 858                 wcn36xx_smd_trigger_ba(wcn, get_sta_index(vif, sta_priv));
 859                 ieee80211_start_tx_ba_session(sta, tid, 0);
 860                 break;
 861         case IEEE80211_AMPDU_RX_STOP:
 862                 wcn36xx_smd_del_ba(wcn, tid, get_sta_index(vif, sta_priv));
 863                 break;
 864         case IEEE80211_AMPDU_TX_START:
 865                 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
 866                 break;
 867         case IEEE80211_AMPDU_TX_OPERATIONAL:
 868                 wcn36xx_smd_add_ba_session(wcn, sta, tid, ssn, 1,
 869                         get_sta_index(vif, sta_priv));
 870                 break;
 871         case IEEE80211_AMPDU_TX_STOP_FLUSH:
 872         case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
 873         case IEEE80211_AMPDU_TX_STOP_CONT:
 874                 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
 875                 break;
 876         default:
 877                 wcn36xx_err("Unknown AMPDU action\n");
 878         }
 879
 880         return 0;
 881 }
 882
 883 static const struct ieee80211_ops wcn36xx_ops = {
 884         .start                  = wcn36xx_start,
 885         .stop                   = wcn36xx_stop,
 886         .add_interface          = wcn36xx_add_interface,
 887         .remove_interface       = wcn36xx_remove_interface,
 888 #ifdef CONFIG_PM
 889         .suspend                = wcn36xx_suspend,
 890         .resume                 = wcn36xx_resume,
 891 #endif
 892         .config                 = wcn36xx_config,
 893         .configure_filter       = wcn36xx_configure_filter,
 894         .tx                     = wcn36xx_tx,
 895         .set_key                = wcn36xx_set_key,
 896         .sw_scan_start          = wcn36xx_sw_scan_start,
 897         .sw_scan_complete       = wcn36xx_sw_scan_complete,
 898         .bss_info_changed       = wcn36xx_bss_info_changed,
 899         .set_rts_threshold      = wcn36xx_set_rts_threshold,
 900         .sta_add                = wcn36xx_sta_add,
 901         .sta_remove             = wcn36xx_sta_remove,
 902         .ampdu_action           = wcn36xx_ampdu_action,
 903 };
 904
 905 static int wcn36xx_init_ieee80211(struct wcn36xx *wcn)
 906 {
 907         int ret = 0;
 908
 909         static const u32 cipher_suites[] = {
 910                 WLAN_CIPHER_SUITE_WEP40,
 911                 WLAN_CIPHER_SUITE_WEP104,
 912                 WLAN_CIPHER_SUITE_TKIP,
 913                 WLAN_CIPHER_SUITE_CCMP,
 914         };
 915
 916         wcn->hw->flags = IEEE80211_HW_SIGNAL_DBM |
 917                 IEEE80211_HW_HAS_RATE_CONTROL |
 918                 IEEE80211_HW_SUPPORTS_PS |
 919                 IEEE80211_HW_CONNECTION_MONITOR |
 920                 IEEE80211_HW_AMPDU_AGGREGATION |
 921                 IEEE80211_HW_TIMING_BEACON_ONLY;
 922
 923         wcn->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
 924                 BIT(NL80211_IFTYPE_AP) |
 925                 BIT(NL80211_IFTYPE_ADHOC) |
 926                 BIT(NL80211_IFTYPE_MESH_POINT);
 927
 928         wcn->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &wcn_band_2ghz;
 929         wcn->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &wcn_band_5ghz;
 930
 931         wcn->hw->wiphy->cipher_suites = cipher_suites;
 932         wcn->hw->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
 933
 934         wcn->hw->wiphy->flags |= WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD;
 935
 936 #ifdef CONFIG_PM
 937         wcn->hw->wiphy->wowlan = &wowlan_support;
 938 #endif
 939
 940         wcn->hw->max_listen_interval = 200;
 941
 942         wcn->hw->queues = 4;
 943
 944         SET_IEEE80211_DEV(wcn->hw, wcn->dev);
 945
 946         wcn->hw->sta_data_size = sizeof(struct wcn36xx_sta);
 947         wcn->hw->vif_data_size = sizeof(struct wcn36xx_vif);
 948
 949         return ret;
 950 }
 951
 952 static int wcn36xx_platform_get_resources(struct wcn36xx *wcn,
 953                                           struct platform_device *pdev)
 954 {
 955         struct resource *res;
 956         /* Set TX IRQ */
 957         res = platform_get_resource_byname(pdev, IORESOURCE_IRQ,
 958                                            "wcnss_wlantx_irq");
 959         if (!res) {
 960                 wcn36xx_err("failed to get tx_irq\n");
 961                 return -ENOENT;
 962         }
 963         wcn->tx_irq = res->start;
 964
 965         /* Set RX IRQ */
 966         res = platform_get_resource_byname(pdev, IORESOURCE_IRQ,
 967                                            "wcnss_wlanrx_irq");
 968         if (!res) {
 969                 wcn36xx_err("failed to get rx_irq\n");
 970                 return -ENOENT;
 971         }
 972         wcn->rx_irq = res->start;
 973
 974         /* Map the memory */
 975         res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
 976                                                  "wcnss_mmio");
 977         if (!res) {
 978                 wcn36xx_err("failed to get mmio\n");
 979                 return -ENOENT;
 980         }
 981         wcn->mmio = ioremap(res->start, resource_size(res));
 982         if (!wcn->mmio) {
 983                 wcn36xx_err("failed to map io memory\n");
 984                 return -ENOMEM;
 985         }
 986         return 0;
 987 }
 988
 989 static int wcn36xx_probe(struct platform_device *pdev)
 990 {
 991         struct ieee80211_hw *hw;
 992         struct wcn36xx *wcn;
 993         int ret;
 994         u8 addr[ETH_ALEN];
 995
 996         wcn36xx_dbg(WCN36XX_DBG_MAC, "platform probe\n");
 997
 998         hw = ieee80211_alloc_hw(sizeof(struct wcn36xx), &wcn36xx_ops);
 999         if (!hw) {
1000                 wcn36xx_err("failed to alloc hw\n");
1001                 ret = -ENOMEM;
1002                 goto out_err;
1003         }
1004         platform_set_drvdata(pdev, hw);
1005         wcn = hw->priv;
1006         wcn->hw = hw;
1007         wcn->dev = &pdev->dev;
1008         wcn->ctrl_ops = pdev->dev.platform_data;
1009
1010         mutex_init(&wcn->hal_mutex);
1011
1012         if (!wcn->ctrl_ops->get_hw_mac(addr)) {
1013                 wcn36xx_info("mac address: %pM\n", addr);
1014                 SET_IEEE80211_PERM_ADDR(wcn->hw, addr);
1015         }
1016
1017         ret = wcn36xx_platform_get_resources(wcn, pdev);
1018         if (ret)
1019                 goto out_wq;
1020
1021         wcn36xx_init_ieee80211(wcn);
1022         ret = ieee80211_register_hw(wcn->hw);
1023         if (ret)
1024                 goto out_unmap;
1025
1026         return 0;
1027
1028 out_unmap:
1029         iounmap(wcn->mmio);
1030 out_wq:
1031         ieee80211_free_hw(hw);
1032 out_err:
1033         return ret;
1034 }
1035 static int wcn36xx_remove(struct platform_device *pdev)
1036 {
1037         struct ieee80211_hw *hw = platform_get_drvdata(pdev);
1038         struct wcn36xx *wcn = hw->priv;
1039         wcn36xx_dbg(WCN36XX_DBG_MAC, "platform remove\n");
1040
1041         release_firmware(wcn->nv);
1042         mutex_destroy(&wcn->hal_mutex);
1043
1044         ieee80211_unregister_hw(hw);
1045         iounmap(wcn->mmio);
1046         ieee80211_free_hw(hw);
1047
1048         return 0;
1049 }
1050 static const struct platform_device_id wcn36xx_platform_id_table[] = {
1051         {
1052                 .name = "wcn36xx",
1053                 .driver_data = 0
1054         },
1055         {}
1056 };
1057 MODULE_DEVICE_TABLE(platform, wcn36xx_platform_id_table);
1058
1059 static struct platform_driver wcn36xx_driver = {
1060         .probe      = wcn36xx_probe,
1061         .remove     = wcn36xx_remove,
1062         .driver         = {
1063                 .name   = "wcn36xx",
1064                 .owner  = THIS_MODULE,
1065         },
1066         .id_table    = wcn36xx_platform_id_table,
1067 };
1068
1069 static int __init wcn36xx_init(void)
1070 {
1071         platform_driver_register(&wcn36xx_driver);
1072         return 0;
1073 }
1074 module_init(wcn36xx_init);
1075
1076 static void __exit wcn36xx_exit(void)
1077 {
1078         platform_driver_unregister(&wcn36xx_driver);
1079 }
1080 module_exit(wcn36xx_exit);
1081
1082 MODULE_LICENSE("Dual BSD/GPL");
1083 MODULE_AUTHOR("Eugene Krasnikov k.eugene.e@gmail.com");
1084 MODULE_FIRMWARE(WLAN_NV_FILE);