drivers/net/wireless/mwifiex/sta_ioctl.c

   1 /*
   2  * Marvell Wireless LAN device driver: functions for station ioctl
   3  *
   4  * Copyright (C) 2011, Marvell International Ltd.
   5  *
   6  * This software file (the "File") is distributed by Marvell International
   7  * Ltd. under the terms of the GNU General Public License Version 2, June 1991
   8  * (the "License").  You may use, redistribute and/or modify this File in
   9  * accordance with the terms and conditions of the License, a copy of which
  10  * is available by writing to the Free Software Foundation, Inc.,
  11  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
  12  * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
  13  *
  14  * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
  16  * ARE EXPRESSLY DISCLAIMED.  The License provides additional details about
  17  * this warranty disclaimer.
  18  */
  19
  20 #include "decl.h"
  21 #include "ioctl.h"
  22 #include "util.h"
  23 #include "fw.h"
  24 #include "main.h"
  25 #include "wmm.h"
  26 #include "11n.h"
  27 #include "cfg80211.h"
  28
  29 static int disconnect_on_suspend = 1;
  30 module_param(disconnect_on_suspend, int, 0644);
  31
  32 /*
  33  * Copies the multicast address list from device to driver.
  34  *
  35  * This function does not validate the destination memory for
  36  * size, and the calling function must ensure enough memory is
  37  * available.
  38  */
  39 int mwifiex_copy_mcast_addr(struct mwifiex_multicast_list *mlist,
  40                             struct net_device *dev)
  41 {
  42         int i = 0;
  43         struct netdev_hw_addr *ha;
  44
  45         netdev_for_each_mc_addr(ha, dev)
  46                 memcpy(&mlist->mac_list[i++], ha->addr, ETH_ALEN);
  47
  48         return i;
  49 }
  50
  51 /*
  52  * Wait queue completion handler.
  53  *
  54  * This function waits on a cmd wait queue. It also cancels the pending
  55  * request after waking up, in case of errors.
  56  */
  57 int mwifiex_wait_queue_complete(struct mwifiex_adapter *adapter,
  58                                 struct cmd_ctrl_node *cmd_queued)
  59 {
  60         int status;
  61
  62         /* Wait for completion */
  63         status = wait_event_interruptible(adapter->cmd_wait_q.wait,
  64                                           *(cmd_queued->condition));
  65         if (status) {
  66                 dev_err(adapter->dev, "cmd_wait_q terminated: %d\n", status);
  67                 mwifiex_cancel_all_pending_cmd(adapter);
  68                 return status;
  69         }
  70
  71         status = adapter->cmd_wait_q.status;
  72         adapter->cmd_wait_q.status = 0;
  73
  74         return status;
  75 }
  76
  77 /*
  78  * This function prepares the correct firmware command and
  79  * issues it to set the multicast list.
  80  *
  81  * This function can be used to enable promiscuous mode, or enable all
  82  * multicast packets, or to enable selective multicast.
  83  */
  84 int mwifiex_request_set_multicast_list(struct mwifiex_private *priv,
  85                                 struct mwifiex_multicast_list *mcast_list)
  86 {
  87         int ret = 0;
  88         u16 old_pkt_filter;
  89
  90         old_pkt_filter = priv->curr_pkt_filter;
  91
  92         if (mcast_list->mode == MWIFIEX_PROMISC_MODE) {
  93                 dev_dbg(priv->adapter->dev, "info: Enable Promiscuous mode\n");
  94                 priv->curr_pkt_filter |= HostCmd_ACT_MAC_PROMISCUOUS_ENABLE;
  95                 priv->curr_pkt_filter &=
  96                         ~HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE;
  97         } else {
  98                 /* Multicast */
  99                 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_PROMISCUOUS_ENABLE;
 100                 if (mcast_list->mode == MWIFIEX_ALL_MULTI_MODE) {
 101                         dev_dbg(priv->adapter->dev,
 102                                 "info: Enabling All Multicast!\n");
 103                         priv->curr_pkt_filter |=
 104                                 HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE;
 105                 } else {
 106                         priv->curr_pkt_filter &=
 107                                 ~HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE;
 108                         dev_dbg(priv->adapter->dev,
 109                                 "info: Set multicast list=%d\n",
 110                                 mcast_list->num_multicast_addr);
 111                         /* Send multicast addresses to firmware */
 112                         ret = mwifiex_send_cmd(priv,
 113                                                HostCmd_CMD_MAC_MULTICAST_ADR,
 114                                                HostCmd_ACT_GEN_SET, 0,
 115                                                mcast_list, false);
 116                 }
 117         }
 118         dev_dbg(priv->adapter->dev,
 119                 "info: old_pkt_filter=%#x, curr_pkt_filter=%#x\n",
 120                old_pkt_filter, priv->curr_pkt_filter);
 121         if (old_pkt_filter != priv->curr_pkt_filter) {
 122                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_MAC_CONTROL,
 123                                        HostCmd_ACT_GEN_SET,
 124                                        0, &priv->curr_pkt_filter, false);
 125         }
 126
 127         return ret;
 128 }
 129
 130 /*
 131  * This function fills bss descriptor structure using provided
 132  * information.
 133  * beacon_ie buffer is allocated in this function. It is caller's
 134  * responsibility to free the memory.
 135  */
 136 int mwifiex_fill_new_bss_desc(struct mwifiex_private *priv,
 137                               struct cfg80211_bss *bss,
 138                               struct mwifiex_bssdescriptor *bss_desc)
 139 {
 140         u8 *beacon_ie;
 141         size_t beacon_ie_len;
 142         struct mwifiex_bss_priv *bss_priv = (void *)bss->priv;
 143         const struct cfg80211_bss_ies *ies;
 144
 145         rcu_read_lock();
 146         ies = rcu_dereference(bss->ies);
 147         beacon_ie = kmemdup(ies->data, ies->len, GFP_ATOMIC);
 148         beacon_ie_len = ies->len;
 149         bss_desc->timestamp = ies->tsf;
 150         rcu_read_unlock();
 151
 152         if (!beacon_ie) {
 153                 dev_err(priv->adapter->dev, " failed to alloc beacon_ie\n");
 154                 return -ENOMEM;
 155         }
 156
 157         memcpy(bss_desc->mac_address, bss->bssid, ETH_ALEN);
 158         bss_desc->rssi = bss->signal;
 159         /* The caller of this function will free beacon_ie */
 160         bss_desc->beacon_buf = beacon_ie;
 161         bss_desc->beacon_buf_size = beacon_ie_len;
 162         bss_desc->beacon_period = bss->beacon_interval;
 163         bss_desc->cap_info_bitmap = bss->capability;
 164         bss_desc->bss_band = bss_priv->band;
 165         bss_desc->fw_tsf = bss_priv->fw_tsf;
 166         if (bss_desc->cap_info_bitmap & WLAN_CAPABILITY_PRIVACY) {
 167                 dev_dbg(priv->adapter->dev, "info: InterpretIE: AP WEP enabled\n");
 168                 bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_8021X_WEP;
 169         } else {
 170                 bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_ACCEPT_ALL;
 171         }
 172         if (bss_desc->cap_info_bitmap & WLAN_CAPABILITY_IBSS)
 173                 bss_desc->bss_mode = NL80211_IFTYPE_ADHOC;
 174         else
 175                 bss_desc->bss_mode = NL80211_IFTYPE_STATION;
 176
 177         /* Disable 11ac by default. Enable it only where there
 178          * exist VHT_CAP IE in AP beacon
 179          */
 180         bss_desc->disable_11ac = true;
 181
 182         if (bss_desc->cap_info_bitmap & WLAN_CAPABILITY_SPECTRUM_MGMT)
 183                 bss_desc->sensed_11h = true;
 184
 185         return mwifiex_update_bss_desc_with_ie(priv->adapter, bss_desc);
 186 }
 187
 188 void mwifiex_dnld_txpwr_table(struct mwifiex_private *priv)
 189 {
 190         if (priv->adapter->dt_node) {
 191                 char txpwr[] = {"marvell,00_txpwrlimit"};
 192
 193                 memcpy(&txpwr[8], priv->adapter->country_code, 2);
 194                 mwifiex_dnld_dt_cfgdata(priv, priv->adapter->dt_node, txpwr);
 195         }
 196 }
 197
 198 static int mwifiex_process_country_ie(struct mwifiex_private *priv,
 199                                       struct cfg80211_bss *bss)
 200 {
 201         const u8 *country_ie;
 202         u8 country_ie_len;
 203         struct mwifiex_802_11d_domain_reg *domain_info =
 204                                         &priv->adapter->domain_reg;
 205
 206         rcu_read_lock();
 207         country_ie = ieee80211_bss_get_ie(bss, WLAN_EID_COUNTRY);
 208         if (!country_ie) {
 209                 rcu_read_unlock();
 210                 return 0;
 211         }
 212
 213         country_ie_len = country_ie[1];
 214         if (country_ie_len < IEEE80211_COUNTRY_IE_MIN_LEN) {
 215                 rcu_read_unlock();
 216                 return 0;
 217         }
 218
 219         if (!strncmp(priv->adapter->country_code, &country_ie[2], 2)) {
 220                 rcu_read_unlock();
 221                 wiphy_dbg(priv->wdev->wiphy,
 222                           "11D: skip setting domain info in FW\n");
 223                 return 0;
 224         }
 225         memcpy(priv->adapter->country_code, &country_ie[2], 2);
 226
 227         domain_info->country_code[0] = country_ie[2];
 228         domain_info->country_code[1] = country_ie[3];
 229         domain_info->country_code[2] = ' ';
 230
 231         country_ie_len -= IEEE80211_COUNTRY_STRING_LEN;
 232
 233         domain_info->no_of_triplet =
 234                 country_ie_len / sizeof(struct ieee80211_country_ie_triplet);
 235
 236         memcpy((u8 *)domain_info->triplet,
 237                &country_ie[2] + IEEE80211_COUNTRY_STRING_LEN, country_ie_len);
 238
 239         rcu_read_unlock();
 240
 241         if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
 242                              HostCmd_ACT_GEN_SET, 0, NULL, false)) {
 243                 wiphy_err(priv->adapter->wiphy,
 244                           "11D: setting domain info in FW\n");
 245                 return -1;
 246         }
 247
 248         mwifiex_dnld_txpwr_table(priv);
 249
 250         return 0;
 251 }
 252
 253 /*
 254  * In Ad-Hoc mode, the IBSS is created if not found in scan list.
 255  * In both Ad-Hoc and infra mode, an deauthentication is performed
 256  * first.
 257  */
 258 int mwifiex_bss_start(struct mwifiex_private *priv, struct cfg80211_bss *bss,
 259                       struct cfg80211_ssid *req_ssid)
 260 {
 261         int ret;
 262         struct mwifiex_adapter *adapter = priv->adapter;
 263         struct mwifiex_bssdescriptor *bss_desc = NULL;
 264
 265         priv->scan_block = false;
 266
 267         if (bss) {
 268                 mwifiex_process_country_ie(priv, bss);
 269
 270                 /* Allocate and fill new bss descriptor */
 271                 bss_desc = kzalloc(sizeof(struct mwifiex_bssdescriptor),
 272                                    GFP_KERNEL);
 273                 if (!bss_desc)
 274                         return -ENOMEM;
 275
 276                 ret = mwifiex_fill_new_bss_desc(priv, bss, bss_desc);
 277                 if (ret)
 278                         goto done;
 279         }
 280
 281         if (priv->bss_mode == NL80211_IFTYPE_STATION ||
 282             priv->bss_mode == NL80211_IFTYPE_P2P_CLIENT) {
 283                 u8 config_bands;
 284
 285                 ret = mwifiex_deauthenticate(priv, NULL);
 286                 if (ret)
 287                         goto done;
 288
 289                 if (!bss_desc)
 290                         return -1;
 291
 292                 if (mwifiex_band_to_radio_type(bss_desc->bss_band) ==
 293                                                 HostCmd_SCAN_RADIO_TYPE_BG)
 294                         config_bands = BAND_B | BAND_G | BAND_GN;
 295                 else
 296                         config_bands = BAND_A | BAND_AN | BAND_AAC;
 297
 298                 if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands))
 299                         adapter->config_bands = config_bands;
 300
 301                 ret = mwifiex_check_network_compatibility(priv, bss_desc);
 302                 if (ret)
 303                         goto done;
 304
 305                 if (mwifiex_11h_get_csa_closed_channel(priv) ==
 306                                                         (u8)bss_desc->channel) {
 307                         dev_err(adapter->dev,
 308                                 "Attempt to reconnect on csa closed chan(%d)\n",
 309                                 bss_desc->channel);
 310                         goto done;
 311                 }
 312
 313                 dev_dbg(adapter->dev, "info: SSID found in scan list ... "
 314                                       "associating...\n");
 315
 316                 mwifiex_stop_net_dev_queue(priv->netdev, adapter);
 317                 if (netif_carrier_ok(priv->netdev))
 318                         netif_carrier_off(priv->netdev);
 319
 320                 /* Clear any past association response stored for
 321                  * application retrieval */
 322                 priv->assoc_rsp_size = 0;
 323                 ret = mwifiex_associate(priv, bss_desc);
 324
 325                 /* If auth type is auto and association fails using open mode,
 326                  * try to connect using shared mode */
 327                 if (ret == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG &&
 328                     priv->sec_info.is_authtype_auto &&
 329                     priv->sec_info.wep_enabled) {
 330                         priv->sec_info.authentication_mode =
 331                                                 NL80211_AUTHTYPE_SHARED_KEY;
 332                         ret = mwifiex_associate(priv, bss_desc);
 333                 }
 334
 335                 if (bss)
 336                         cfg80211_put_bss(priv->adapter->wiphy, bss);
 337         } else {
 338                 /* Adhoc mode */
 339                 /* If the requested SSID matches current SSID, return */
 340                 if (bss_desc && bss_desc->ssid.ssid_len &&
 341                     (!mwifiex_ssid_cmp(&priv->curr_bss_params.bss_descriptor.
 342                                        ssid, &bss_desc->ssid))) {
 343                         ret = 0;
 344                         goto done;
 345                 }
 346
 347                 /* Exit Adhoc mode first */
 348                 dev_dbg(adapter->dev, "info: Sending Adhoc Stop\n");
 349                 ret = mwifiex_deauthenticate(priv, NULL);
 350                 if (ret)
 351                         goto done;
 352
 353                 priv->adhoc_is_link_sensed = false;
 354
 355                 ret = mwifiex_check_network_compatibility(priv, bss_desc);
 356
 357                 mwifiex_stop_net_dev_queue(priv->netdev, adapter);
 358                 if (netif_carrier_ok(priv->netdev))
 359                         netif_carrier_off(priv->netdev);
 360
 361                 if (!ret) {
 362                         dev_dbg(adapter->dev, "info: network found in scan"
 363                                                         " list. Joining...\n");
 364                         ret = mwifiex_adhoc_join(priv, bss_desc);
 365                         if (bss)
 366                                 cfg80211_put_bss(priv->adapter->wiphy, bss);
 367                 } else {
 368                         dev_dbg(adapter->dev, "info: Network not found in "
 369                                 "the list, creating adhoc with ssid = %s\n",
 370                                 req_ssid->ssid);
 371                         ret = mwifiex_adhoc_start(priv, req_ssid);
 372                 }
 373         }
 374
 375 done:
 376         /* beacon_ie buffer was allocated in function
 377          * mwifiex_fill_new_bss_desc(). Free it now.
 378          */
 379         if (bss_desc)
 380                 kfree(bss_desc->beacon_buf);
 381         kfree(bss_desc);
 382         return ret;
 383 }
 384
 385 /*
 386  * IOCTL request handler to set host sleep configuration.
 387  *
 388  * This function prepares the correct firmware command and
 389  * issues it.
 390  */
 391 static int mwifiex_set_hs_params(struct mwifiex_private *priv, u16 action,
 392                                  int cmd_type, struct mwifiex_ds_hs_cfg *hs_cfg)
 393
 394 {
 395         struct mwifiex_adapter *adapter = priv->adapter;
 396         int status = 0;
 397         u32 prev_cond = 0;
 398
 399         if (!hs_cfg)
 400                 return -ENOMEM;
 401
 402         switch (action) {
 403         case HostCmd_ACT_GEN_SET:
 404                 if (adapter->pps_uapsd_mode) {
 405                         dev_dbg(adapter->dev, "info: Host Sleep IOCTL"
 406                                 " is blocked in UAPSD/PPS mode\n");
 407                         status = -1;
 408                         break;
 409                 }
 410                 if (hs_cfg->is_invoke_hostcmd) {
 411                         if (hs_cfg->conditions == HS_CFG_CANCEL) {
 412                                 if (!adapter->is_hs_configured)
 413                                         /* Already cancelled */
 414                                         break;
 415                                 /* Save previous condition */
 416                                 prev_cond = le32_to_cpu(adapter->hs_cfg
 417                                                         .conditions);
 418                                 adapter->hs_cfg.conditions =
 419                                                 cpu_to_le32(hs_cfg->conditions);
 420                         } else if (hs_cfg->conditions) {
 421                                 adapter->hs_cfg.conditions =
 422                                                 cpu_to_le32(hs_cfg->conditions);
 423                                 adapter->hs_cfg.gpio = (u8)hs_cfg->gpio;
 424                                 if (hs_cfg->gap)
 425                                         adapter->hs_cfg.gap = (u8)hs_cfg->gap;
 426                         } else if (adapter->hs_cfg.conditions ==
 427                                    cpu_to_le32(HS_CFG_CANCEL)) {
 428                                 /* Return failure if no parameters for HS
 429                                    enable */
 430                                 status = -1;
 431                                 break;
 432                         }
 433
 434                         status = mwifiex_send_cmd(priv,
 435                                                   HostCmd_CMD_802_11_HS_CFG_ENH,
 436                                                   HostCmd_ACT_GEN_SET, 0,
 437                                                   &adapter->hs_cfg,
 438                                                   cmd_type == MWIFIEX_SYNC_CMD);
 439
 440                         if (hs_cfg->conditions == HS_CFG_CANCEL)
 441                                 /* Restore previous condition */
 442                                 adapter->hs_cfg.conditions =
 443                                                 cpu_to_le32(prev_cond);
 444                 } else {
 445                         adapter->hs_cfg.conditions =
 446                                                 cpu_to_le32(hs_cfg->conditions);
 447                         adapter->hs_cfg.gpio = (u8)hs_cfg->gpio;
 448                         adapter->hs_cfg.gap = (u8)hs_cfg->gap;
 449                 }
 450                 break;
 451         case HostCmd_ACT_GEN_GET:
 452                 hs_cfg->conditions = le32_to_cpu(adapter->hs_cfg.conditions);
 453                 hs_cfg->gpio = adapter->hs_cfg.gpio;
 454                 hs_cfg->gap = adapter->hs_cfg.gap;
 455                 break;
 456         default:
 457                 status = -1;
 458                 break;
 459         }
 460
 461         return status;
 462 }
 463
 464 /*
 465  * Sends IOCTL request to cancel the existing Host Sleep configuration.
 466  *
 467  * This function allocates the IOCTL request buffer, fills it
 468  * with requisite parameters and calls the IOCTL handler.
 469  */
 470 int mwifiex_cancel_hs(struct mwifiex_private *priv, int cmd_type)
 471 {
 472         struct mwifiex_ds_hs_cfg hscfg;
 473
 474         hscfg.conditions = HS_CFG_CANCEL;
 475         hscfg.is_invoke_hostcmd = true;
 476
 477         return mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_SET,
 478                                     cmd_type, &hscfg);
 479 }
 480 EXPORT_SYMBOL_GPL(mwifiex_cancel_hs);
 481
 482 /*
 483  * Sends IOCTL request to cancel the existing Host Sleep configuration.
 484  *
 485  * This function allocates the IOCTL request buffer, fills it
 486  * with requisite parameters and calls the IOCTL handler.
 487  */
 488 int mwifiex_enable_hs(struct mwifiex_adapter *adapter)
 489 {
 490         struct mwifiex_ds_hs_cfg hscfg;
 491         struct mwifiex_private *priv;
 492         int i;
 493
 494         if (disconnect_on_suspend) {
 495                 for (i = 0; i < adapter->priv_num; i++) {
 496                         priv = adapter->priv[i];
 497                         if (priv)
 498                                 mwifiex_deauthenticate(priv, NULL);
 499                 }
 500         }
 501
 502         if (adapter->hs_activated) {
 503                 dev_dbg(adapter->dev, "cmd: HS Already activated\n");
 504                 return true;
 505         }
 506
 507         adapter->hs_activate_wait_q_woken = false;
 508
 509         memset(&hscfg, 0, sizeof(struct mwifiex_ds_hs_cfg));
 510         hscfg.is_invoke_hostcmd = true;
 511
 512         adapter->hs_enabling = true;
 513         mwifiex_cancel_all_pending_cmd(adapter);
 514
 515         if (mwifiex_set_hs_params(mwifiex_get_priv(adapter,
 516                                                    MWIFIEX_BSS_ROLE_STA),
 517                                   HostCmd_ACT_GEN_SET, MWIFIEX_SYNC_CMD,
 518                                   &hscfg)) {
 519                 dev_err(adapter->dev, "IOCTL request HS enable failed\n");
 520                 return false;
 521         }
 522
 523         if (wait_event_interruptible_timeout(adapter->hs_activate_wait_q,
 524                                              adapter->hs_activate_wait_q_woken,
 525                                              (10 * HZ)) <= 0) {
 526                 dev_err(adapter->dev, "hs_activate_wait_q terminated\n");
 527                 return false;
 528         }
 529
 530         return true;
 531 }
 532 EXPORT_SYMBOL_GPL(mwifiex_enable_hs);
 533
 534 /*
 535  * IOCTL request handler to get BSS information.
 536  *
 537  * This function collates the information from different driver structures
 538  * to send to the user.
 539  */
 540 int mwifiex_get_bss_info(struct mwifiex_private *priv,
 541                          struct mwifiex_bss_info *info)
 542 {
 543         struct mwifiex_adapter *adapter = priv->adapter;
 544         struct mwifiex_bssdescriptor *bss_desc;
 545
 546         if (!info)
 547                 return -1;
 548
 549         bss_desc = &priv->curr_bss_params.bss_descriptor;
 550
 551         info->bss_mode = priv->bss_mode;
 552
 553         memcpy(&info->ssid, &bss_desc->ssid, sizeof(struct cfg80211_ssid));
 554
 555         memcpy(&info->bssid, &bss_desc->mac_address, ETH_ALEN);
 556
 557         info->bss_chan = bss_desc->channel;
 558
 559         memcpy(info->country_code, adapter->country_code,
 560                IEEE80211_COUNTRY_STRING_LEN);
 561
 562         info->media_connected = priv->media_connected;
 563
 564         info->max_power_level = priv->max_tx_power_level;
 565         info->min_power_level = priv->min_tx_power_level;
 566
 567         info->adhoc_state = priv->adhoc_state;
 568
 569         info->bcn_nf_last = priv->bcn_nf_last;
 570
 571         if (priv->sec_info.wep_enabled)
 572                 info->wep_status = true;
 573         else
 574                 info->wep_status = false;
 575
 576         info->is_hs_configured = adapter->is_hs_configured;
 577         info->is_deep_sleep = adapter->is_deep_sleep;
 578
 579         return 0;
 580 }
 581
 582 /*
 583  * The function disables auto deep sleep mode.
 584  */
 585 int mwifiex_disable_auto_ds(struct mwifiex_private *priv)
 586 {
 587         struct mwifiex_ds_auto_ds auto_ds;
 588
 589         auto_ds.auto_ds = DEEP_SLEEP_OFF;
 590
 591         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_PS_MODE_ENH,
 592                                 DIS_AUTO_PS, BITMAP_AUTO_DS, &auto_ds, true);
 593 }
 594 EXPORT_SYMBOL_GPL(mwifiex_disable_auto_ds);
 595
 596 /*
 597  * Sends IOCTL request to get the data rate.
 598  *
 599  * This function allocates the IOCTL request buffer, fills it
 600  * with requisite parameters and calls the IOCTL handler.
 601  */
 602 int mwifiex_drv_get_data_rate(struct mwifiex_private *priv, u32 *rate)
 603 {
 604         int ret;
 605
 606         ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_TX_RATE_QUERY,
 607                                HostCmd_ACT_GEN_GET, 0, NULL, true);
 608
 609         if (!ret) {
 610                 if (priv->is_data_rate_auto)
 611                         *rate = mwifiex_index_to_data_rate(priv, priv->tx_rate,
 612                                                            priv->tx_htinfo);
 613                 else
 614                         *rate = priv->data_rate;
 615         }
 616
 617         return ret;
 618 }
 619
 620 /*
 621  * IOCTL request handler to set tx power configuration.
 622  *
 623  * This function prepares the correct firmware command and
 624  * issues it.
 625  *
 626  * For non-auto power mode, all the following power groups are set -
 627  *      - Modulation class HR/DSSS
 628  *      - Modulation class OFDM
 629  *      - Modulation class HTBW20
 630  *      - Modulation class HTBW40
 631  */
 632 int mwifiex_set_tx_power(struct mwifiex_private *priv,
 633                          struct mwifiex_power_cfg *power_cfg)
 634 {
 635         int ret;
 636         struct host_cmd_ds_txpwr_cfg *txp_cfg;
 637         struct mwifiex_types_power_group *pg_tlv;
 638         struct mwifiex_power_group *pg;
 639         u8 *buf;
 640         u16 dbm = 0;
 641
 642         if (!power_cfg->is_power_auto) {
 643                 dbm = (u16) power_cfg->power_level;
 644                 if ((dbm < priv->min_tx_power_level) ||
 645                     (dbm > priv->max_tx_power_level)) {
 646                         dev_err(priv->adapter->dev, "txpower value %d dBm"
 647                                 " is out of range (%d dBm-%d dBm)\n",
 648                                 dbm, priv->min_tx_power_level,
 649                                 priv->max_tx_power_level);
 650                         return -1;
 651                 }
 652         }
 653         buf = kzalloc(MWIFIEX_SIZE_OF_CMD_BUFFER, GFP_KERNEL);
 654         if (!buf)
 655                 return -ENOMEM;
 656
 657         txp_cfg = (struct host_cmd_ds_txpwr_cfg *) buf;
 658         txp_cfg->action = cpu_to_le16(HostCmd_ACT_GEN_SET);
 659         if (!power_cfg->is_power_auto) {
 660                 txp_cfg->mode = cpu_to_le32(1);
 661                 pg_tlv = (struct mwifiex_types_power_group *)
 662                          (buf + sizeof(struct host_cmd_ds_txpwr_cfg));
 663                 pg_tlv->type = cpu_to_le16(TLV_TYPE_POWER_GROUP);
 664                 pg_tlv->length =
 665                         cpu_to_le16(4 * sizeof(struct mwifiex_power_group));
 666                 pg = (struct mwifiex_power_group *)
 667                      (buf + sizeof(struct host_cmd_ds_txpwr_cfg)
 668                       + sizeof(struct mwifiex_types_power_group));
 669                 /* Power group for modulation class HR/DSSS */
 670                 pg->first_rate_code = 0x00;
 671                 pg->last_rate_code = 0x03;
 672                 pg->modulation_class = MOD_CLASS_HR_DSSS;
 673                 pg->power_step = 0;
 674                 pg->power_min = (s8) dbm;
 675                 pg->power_max = (s8) dbm;
 676                 pg++;
 677                 /* Power group for modulation class OFDM */
 678                 pg->first_rate_code = 0x00;
 679                 pg->last_rate_code = 0x07;
 680                 pg->modulation_class = MOD_CLASS_OFDM;
 681                 pg->power_step = 0;
 682                 pg->power_min = (s8) dbm;
 683                 pg->power_max = (s8) dbm;
 684                 pg++;
 685                 /* Power group for modulation class HTBW20 */
 686                 pg->first_rate_code = 0x00;
 687                 pg->last_rate_code = 0x20;
 688                 pg->modulation_class = MOD_CLASS_HT;
 689                 pg->power_step = 0;
 690                 pg->power_min = (s8) dbm;
 691                 pg->power_max = (s8) dbm;
 692                 pg->ht_bandwidth = HT_BW_20;
 693                 pg++;
 694                 /* Power group for modulation class HTBW40 */
 695                 pg->first_rate_code = 0x00;
 696                 pg->last_rate_code = 0x20;
 697                 pg->modulation_class = MOD_CLASS_HT;
 698                 pg->power_step = 0;
 699                 pg->power_min = (s8) dbm;
 700                 pg->power_max = (s8) dbm;
 701                 pg->ht_bandwidth = HT_BW_40;
 702         }
 703         ret = mwifiex_send_cmd(priv, HostCmd_CMD_TXPWR_CFG,
 704                                HostCmd_ACT_GEN_SET, 0, buf, true);
 705
 706         kfree(buf);
 707         return ret;
 708 }
 709
 710 /*
 711  * IOCTL request handler to get power save mode.
 712  *
 713  * This function prepares the correct firmware command and
 714  * issues it.
 715  */
 716 int mwifiex_drv_set_power(struct mwifiex_private *priv, u32 *ps_mode)
 717 {
 718         int ret;
 719         struct mwifiex_adapter *adapter = priv->adapter;
 720         u16 sub_cmd;
 721
 722         if (*ps_mode)
 723                 adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_PSP;
 724         else
 725                 adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_CAM;
 726         sub_cmd = (*ps_mode) ? EN_AUTO_PS : DIS_AUTO_PS;
 727         ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_PS_MODE_ENH,
 728                                sub_cmd, BITMAP_STA_PS, NULL, true);
 729         if ((!ret) && (sub_cmd == DIS_AUTO_PS))
 730                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_PS_MODE_ENH,
 731                                        GET_PS, 0, NULL, false);
 732
 733         return ret;
 734 }
 735
 736 /*
 737  * IOCTL request handler to set/reset WPA IE.
 738  *
 739  * The supplied WPA IE is treated as a opaque buffer. Only the first field
 740  * is checked to determine WPA version. If buffer length is zero, the existing
 741  * WPA IE is reset.
 742  */
 743 static int mwifiex_set_wpa_ie_helper(struct mwifiex_private *priv,
 744                                      u8 *ie_data_ptr, u16 ie_len)
 745 {
 746         if (ie_len) {
 747                 if (ie_len > sizeof(priv->wpa_ie)) {
 748                         dev_err(priv->adapter->dev,
 749                                 "failed to copy WPA IE, too big\n");
 750                         return -1;
 751                 }
 752                 memcpy(priv->wpa_ie, ie_data_ptr, ie_len);
 753                 priv->wpa_ie_len = (u8) ie_len;
 754                 dev_dbg(priv->adapter->dev, "cmd: Set Wpa_ie_len=%d IE=%#x\n",
 755                         priv->wpa_ie_len, priv->wpa_ie[0]);
 756
 757                 if (priv->wpa_ie[0] == WLAN_EID_VENDOR_SPECIFIC) {
 758                         priv->sec_info.wpa_enabled = true;
 759                 } else if (priv->wpa_ie[0] == WLAN_EID_RSN) {
 760                         priv->sec_info.wpa2_enabled = true;
 761                 } else {
 762                         priv->sec_info.wpa_enabled = false;
 763                         priv->sec_info.wpa2_enabled = false;
 764                 }
 765         } else {
 766                 memset(priv->wpa_ie, 0, sizeof(priv->wpa_ie));
 767                 priv->wpa_ie_len = 0;
 768                 dev_dbg(priv->adapter->dev, "info: reset wpa_ie_len=%d IE=%#x\n",
 769                         priv->wpa_ie_len, priv->wpa_ie[0]);
 770                 priv->sec_info.wpa_enabled = false;
 771                 priv->sec_info.wpa2_enabled = false;
 772         }
 773
 774         return 0;
 775 }
 776
 777 /*
 778  * IOCTL request handler to set/reset WAPI IE.
 779  *
 780  * The supplied WAPI IE is treated as a opaque buffer. Only the first field
 781  * is checked to internally enable WAPI. If buffer length is zero, the existing
 782  * WAPI IE is reset.
 783  */
 784 static int mwifiex_set_wapi_ie(struct mwifiex_private *priv,
 785                                u8 *ie_data_ptr, u16 ie_len)
 786 {
 787         if (ie_len) {
 788                 if (ie_len > sizeof(priv->wapi_ie)) {
 789                         dev_dbg(priv->adapter->dev,
 790                                 "info: failed to copy WAPI IE, too big\n");
 791                         return -1;
 792                 }
 793                 memcpy(priv->wapi_ie, ie_data_ptr, ie_len);
 794                 priv->wapi_ie_len = ie_len;
 795                 dev_dbg(priv->adapter->dev, "cmd: Set wapi_ie_len=%d IE=%#x\n",
 796                         priv->wapi_ie_len, priv->wapi_ie[0]);
 797
 798                 if (priv->wapi_ie[0] == WLAN_EID_BSS_AC_ACCESS_DELAY)
 799                         priv->sec_info.wapi_enabled = true;
 800         } else {
 801                 memset(priv->wapi_ie, 0, sizeof(priv->wapi_ie));
 802                 priv->wapi_ie_len = ie_len;
 803                 dev_dbg(priv->adapter->dev,
 804                         "info: Reset wapi_ie_len=%d IE=%#x\n",
 805                        priv->wapi_ie_len, priv->wapi_ie[0]);
 806                 priv->sec_info.wapi_enabled = false;
 807         }
 808         return 0;
 809 }
 810
 811 /*
 812  * IOCTL request handler to set/reset WPS IE.
 813  *
 814  * The supplied WPS IE is treated as a opaque buffer. Only the first field
 815  * is checked to internally enable WPS. If buffer length is zero, the existing
 816  * WPS IE is reset.
 817  */
 818 static int mwifiex_set_wps_ie(struct mwifiex_private *priv,
 819                                u8 *ie_data_ptr, u16 ie_len)
 820 {
 821         if (ie_len) {
 822                 if (ie_len > MWIFIEX_MAX_VSIE_LEN) {
 823                         dev_dbg(priv->adapter->dev,
 824                                 "info: failed to copy WPS IE, too big\n");
 825                         return -1;
 826                 }
 827
 828                 priv->wps_ie = kzalloc(MWIFIEX_MAX_VSIE_LEN, GFP_KERNEL);
 829                 if (!priv->wps_ie)
 830                         return -ENOMEM;
 831
 832                 memcpy(priv->wps_ie, ie_data_ptr, ie_len);
 833                 priv->wps_ie_len = ie_len;
 834                 dev_dbg(priv->adapter->dev, "cmd: Set wps_ie_len=%d IE=%#x\n",
 835                         priv->wps_ie_len, priv->wps_ie[0]);
 836         } else {
 837                 kfree(priv->wps_ie);
 838                 priv->wps_ie_len = ie_len;
 839                 dev_dbg(priv->adapter->dev,
 840                         "info: Reset wps_ie_len=%d\n", priv->wps_ie_len);
 841         }
 842         return 0;
 843 }
 844
 845 /*
 846  * IOCTL request handler to set WAPI key.
 847  *
 848  * This function prepares the correct firmware command and
 849  * issues it.
 850  */
 851 static int mwifiex_sec_ioctl_set_wapi_key(struct mwifiex_private *priv,
 852                                struct mwifiex_ds_encrypt_key *encrypt_key)
 853 {
 854
 855         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
 856                                 HostCmd_ACT_GEN_SET, KEY_INFO_ENABLED,
 857                                 encrypt_key, true);
 858 }
 859
 860 /*
 861  * IOCTL request handler to set WEP network key.
 862  *
 863  * This function prepares the correct firmware command and
 864  * issues it, after validation checks.
 865  */
 866 static int mwifiex_sec_ioctl_set_wep_key(struct mwifiex_private *priv,
 867                               struct mwifiex_ds_encrypt_key *encrypt_key)
 868 {
 869         struct mwifiex_adapter *adapter = priv->adapter;
 870         int ret;
 871         struct mwifiex_wep_key *wep_key;
 872         int index;
 873
 874         if (priv->wep_key_curr_index >= NUM_WEP_KEYS)
 875                 priv->wep_key_curr_index = 0;
 876         wep_key = &priv->wep_key[priv->wep_key_curr_index];
 877         index = encrypt_key->key_index;
 878         if (encrypt_key->key_disable) {
 879                 priv->sec_info.wep_enabled = 0;
 880         } else if (!encrypt_key->key_len) {
 881                 /* Copy the required key as the current key */
 882                 wep_key = &priv->wep_key[index];
 883                 if (!wep_key->key_length) {
 884                         dev_err(adapter->dev,
 885                                 "key not set, so cannot enable it\n");
 886                         return -1;
 887                 }
 888
 889                 if (adapter->fw_key_api_major_ver == FW_KEY_API_VER_MAJOR_V2) {
 890                         memcpy(encrypt_key->key_material,
 891                                wep_key->key_material, wep_key->key_length);
 892                         encrypt_key->key_len = wep_key->key_length;
 893                 }
 894
 895                 priv->wep_key_curr_index = (u16) index;
 896                 priv->sec_info.wep_enabled = 1;
 897         } else {
 898                 wep_key = &priv->wep_key[index];
 899                 memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
 900                 /* Copy the key in the driver */
 901                 memcpy(wep_key->key_material,
 902                        encrypt_key->key_material,
 903                        encrypt_key->key_len);
 904                 wep_key->key_index = index;
 905                 wep_key->key_length = encrypt_key->key_len;
 906                 priv->sec_info.wep_enabled = 1;
 907         }
 908         if (wep_key->key_length) {
 909                 void *enc_key;
 910
 911                 if (encrypt_key->key_disable)
 912                         memset(&priv->wep_key[index], 0,
 913                                sizeof(struct mwifiex_wep_key));
 914
 915                 if (adapter->fw_key_api_major_ver == FW_KEY_API_VER_MAJOR_V2)
 916                         enc_key = encrypt_key;
 917                 else
 918                         enc_key = NULL;
 919
 920                 /* Send request to firmware */
 921                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
 922                                        HostCmd_ACT_GEN_SET, 0, enc_key, false);
 923                 if (ret)
 924                         return ret;
 925         }
 926
 927         if (priv->sec_info.wep_enabled)
 928                 priv->curr_pkt_filter |= HostCmd_ACT_MAC_WEP_ENABLE;
 929         else
 930                 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_WEP_ENABLE;
 931
 932         ret = mwifiex_send_cmd(priv, HostCmd_CMD_MAC_CONTROL,
 933                                HostCmd_ACT_GEN_SET, 0,
 934                                &priv->curr_pkt_filter, true);
 935
 936         return ret;
 937 }
 938
 939 /*
 940  * IOCTL request handler to set WPA key.
 941  *
 942  * This function prepares the correct firmware command and
 943  * issues it, after validation checks.
 944  *
 945  * Current driver only supports key length of up to 32 bytes.
 946  *
 947  * This function can also be used to disable a currently set key.
 948  */
 949 static int mwifiex_sec_ioctl_set_wpa_key(struct mwifiex_private *priv,
 950                               struct mwifiex_ds_encrypt_key *encrypt_key)
 951 {
 952         int ret;
 953         u8 remove_key = false;
 954         struct host_cmd_ds_802_11_key_material *ibss_key;
 955
 956         /* Current driver only supports key length of up to 32 bytes */
 957         if (encrypt_key->key_len > WLAN_MAX_KEY_LEN) {
 958                 dev_err(priv->adapter->dev, "key length too long\n");
 959                 return -1;
 960         }
 961
 962         if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
 963                 /*
 964                  * IBSS/WPA-None uses only one key (Group) for both receiving
 965                  * and sending unicast and multicast packets.
 966                  */
 967                 /* Send the key as PTK to firmware */
 968                 encrypt_key->key_index = MWIFIEX_KEY_INDEX_UNICAST;
 969                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
 970                                        HostCmd_ACT_GEN_SET,
 971                                        KEY_INFO_ENABLED, encrypt_key, false);
 972                 if (ret)
 973                         return ret;
 974
 975                 ibss_key = &priv->aes_key;
 976                 memset(ibss_key, 0,
 977                        sizeof(struct host_cmd_ds_802_11_key_material));
 978                 /* Copy the key in the driver */
 979                 memcpy(ibss_key->key_param_set.key, encrypt_key->key_material,
 980                        encrypt_key->key_len);
 981                 memcpy(&ibss_key->key_param_set.key_len, &encrypt_key->key_len,
 982                        sizeof(ibss_key->key_param_set.key_len));
 983                 ibss_key->key_param_set.key_type_id
 984                         = cpu_to_le16(KEY_TYPE_ID_TKIP);
 985                 ibss_key->key_param_set.key_info = cpu_to_le16(KEY_ENABLED);
 986
 987                 /* Send the key as GTK to firmware */
 988                 encrypt_key->key_index = ~MWIFIEX_KEY_INDEX_UNICAST;
 989         }
 990
 991         if (!encrypt_key->key_index)
 992                 encrypt_key->key_index = MWIFIEX_KEY_INDEX_UNICAST;
 993
 994         if (remove_key)
 995                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
 996                                        HostCmd_ACT_GEN_SET,
 997                                        !KEY_INFO_ENABLED, encrypt_key, true);
 998         else
 999                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
1000                                        HostCmd_ACT_GEN_SET,
1001                                        KEY_INFO_ENABLED, encrypt_key, true);
1002
1003         return ret;
1004 }
1005
1006 /*
1007  * IOCTL request handler to set/get network keys.
1008  *
1009  * This is a generic key handling function which supports WEP, WPA
1010  * and WAPI.
1011  */
1012 static int
1013 mwifiex_sec_ioctl_encrypt_key(struct mwifiex_private *priv,
1014                               struct mwifiex_ds_encrypt_key *encrypt_key)
1015 {
1016         int status;
1017
1018         if (encrypt_key->is_wapi_key)
1019                 status = mwifiex_sec_ioctl_set_wapi_key(priv, encrypt_key);
1020         else if (encrypt_key->key_len > WLAN_KEY_LEN_WEP104)
1021                 status = mwifiex_sec_ioctl_set_wpa_key(priv, encrypt_key);
1022         else
1023                 status = mwifiex_sec_ioctl_set_wep_key(priv, encrypt_key);
1024         return status;
1025 }
1026
1027 /*
1028  * This function returns the driver version.
1029  */
1030 int
1031 mwifiex_drv_get_driver_version(struct mwifiex_adapter *adapter, char *version,
1032                                int max_len)
1033 {
1034         union {
1035                 u32 l;
1036                 u8 c[4];
1037         } ver;
1038         char fw_ver[32];
1039
1040         ver.l = adapter->fw_release_number;
1041         sprintf(fw_ver, "%u.%u.%u.p%u", ver.c[2], ver.c[1], ver.c[0], ver.c[3]);
1042
1043         snprintf(version, max_len, driver_version, fw_ver);
1044
1045         dev_dbg(adapter->dev, "info: MWIFIEX VERSION: %s\n", version);
1046
1047         return 0;
1048 }
1049
1050 /*
1051  * Sends IOCTL request to set encoding parameters.
1052  *
1053  * This function allocates the IOCTL request buffer, fills it
1054  * with requisite parameters and calls the IOCTL handler.
1055  */
1056 int mwifiex_set_encode(struct mwifiex_private *priv, struct key_params *kp,
1057                        const u8 *key, int key_len, u8 key_index,
1058                        const u8 *mac_addr, int disable)
1059 {
1060         struct mwifiex_ds_encrypt_key encrypt_key;
1061
1062         memset(&encrypt_key, 0, sizeof(struct mwifiex_ds_encrypt_key));
1063         encrypt_key.key_len = key_len;
1064         encrypt_key.key_index = key_index;
1065
1066         if (kp && kp->cipher == WLAN_CIPHER_SUITE_AES_CMAC)
1067                 encrypt_key.is_igtk_key = true;
1068
1069         if (!disable) {
1070                 if (key_len)
1071                         memcpy(encrypt_key.key_material, key, key_len);
1072                 else
1073                         encrypt_key.is_current_wep_key = true;
1074
1075                 if (mac_addr)
1076                         memcpy(encrypt_key.mac_addr, mac_addr, ETH_ALEN);
1077                 if (kp && kp->seq && kp->seq_len) {
1078                         memcpy(encrypt_key.pn, kp->seq, kp->seq_len);
1079                         encrypt_key.pn_len = kp->seq_len;
1080                         encrypt_key.is_rx_seq_valid = true;
1081                 }
1082         } else {
1083                 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP)
1084                         return 0;
1085                 encrypt_key.key_disable = true;
1086                 if (mac_addr)
1087                         memcpy(encrypt_key.mac_addr, mac_addr, ETH_ALEN);
1088         }
1089
1090         return mwifiex_sec_ioctl_encrypt_key(priv, &encrypt_key);
1091 }
1092
1093 /*
1094  * Sends IOCTL request to get extended version.
1095  *
1096  * This function allocates the IOCTL request buffer, fills it
1097  * with requisite parameters and calls the IOCTL handler.
1098  */
1099 int
1100 mwifiex_get_ver_ext(struct mwifiex_private *priv)
1101 {
1102         struct mwifiex_ver_ext ver_ext;
1103
1104         memset(&ver_ext, 0, sizeof(struct host_cmd_ds_version_ext));
1105         if (mwifiex_send_cmd(priv, HostCmd_CMD_VERSION_EXT,
1106                              HostCmd_ACT_GEN_GET, 0, &ver_ext, true))
1107                 return -1;
1108
1109         return 0;
1110 }
1111
1112 int
1113 mwifiex_remain_on_chan_cfg(struct mwifiex_private *priv, u16 action,
1114                            struct ieee80211_channel *chan,
1115                            unsigned int duration)
1116 {
1117         struct host_cmd_ds_remain_on_chan roc_cfg;
1118         u8 sc;
1119
1120         memset(&roc_cfg, 0, sizeof(roc_cfg));
1121         roc_cfg.action = cpu_to_le16(action);
1122         if (action == HostCmd_ACT_GEN_SET) {
1123                 roc_cfg.band_cfg = chan->band;
1124                 sc = mwifiex_chan_type_to_sec_chan_offset(NL80211_CHAN_NO_HT);
1125                 roc_cfg.band_cfg |= (sc << 2);
1126
1127                 roc_cfg.channel =
1128                         ieee80211_frequency_to_channel(chan->center_freq);
1129                 roc_cfg.duration = cpu_to_le32(duration);
1130         }
1131         if (mwifiex_send_cmd(priv, HostCmd_CMD_REMAIN_ON_CHAN,
1132                              action, 0, &roc_cfg, true)) {
1133                 dev_err(priv->adapter->dev, "failed to remain on channel\n");
1134                 return -1;
1135         }
1136
1137         return roc_cfg.status;
1138 }
1139
1140 int
1141 mwifiex_set_bss_role(struct mwifiex_private *priv, u8 bss_role)
1142 {
1143         if (GET_BSS_ROLE(priv) == bss_role) {
1144                 dev_dbg(priv->adapter->dev,
1145                         "info: already in the desired role.\n");
1146                 return 0;
1147         }
1148
1149         mwifiex_free_priv(priv);
1150         mwifiex_init_priv(priv);
1151
1152         priv->bss_role = bss_role;
1153         switch (bss_role) {
1154         case MWIFIEX_BSS_ROLE_UAP:
1155                 priv->bss_mode = NL80211_IFTYPE_AP;
1156                 break;
1157         case MWIFIEX_BSS_ROLE_STA:
1158         case MWIFIEX_BSS_ROLE_ANY:
1159         default:
1160                 priv->bss_mode = NL80211_IFTYPE_STATION;
1161                 break;
1162         }
1163
1164         mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1165                          HostCmd_ACT_GEN_SET, 0, NULL, true);
1166
1167         return mwifiex_sta_init_cmd(priv, false);
1168 }
1169
1170 /*
1171  * Sends IOCTL request to get statistics information.
1172  *
1173  * This function allocates the IOCTL request buffer, fills it
1174  * with requisite parameters and calls the IOCTL handler.
1175  */
1176 int
1177 mwifiex_get_stats_info(struct mwifiex_private *priv,
1178                        struct mwifiex_ds_get_stats *log)
1179 {
1180         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_GET_LOG,
1181                                 HostCmd_ACT_GEN_GET, 0, log, true);
1182 }
1183
1184 /*
1185  * IOCTL request handler to read/write register.
1186  *
1187  * This function prepares the correct firmware command and
1188  * issues it.
1189  *
1190  * Access to the following registers are supported -
1191  *      - MAC
1192  *      - BBP
1193  *      - RF
1194  *      - PMIC
1195  *      - CAU
1196  */
1197 static int mwifiex_reg_mem_ioctl_reg_rw(struct mwifiex_private *priv,
1198                                         struct mwifiex_ds_reg_rw *reg_rw,
1199                                         u16 action)
1200 {
1201         u16 cmd_no;
1202
1203         switch (le32_to_cpu(reg_rw->type)) {
1204         case MWIFIEX_REG_MAC:
1205                 cmd_no = HostCmd_CMD_MAC_REG_ACCESS;
1206                 break;
1207         case MWIFIEX_REG_BBP:
1208                 cmd_no = HostCmd_CMD_BBP_REG_ACCESS;
1209                 break;
1210         case MWIFIEX_REG_RF:
1211                 cmd_no = HostCmd_CMD_RF_REG_ACCESS;
1212                 break;
1213         case MWIFIEX_REG_PMIC:
1214                 cmd_no = HostCmd_CMD_PMIC_REG_ACCESS;
1215                 break;
1216         case MWIFIEX_REG_CAU:
1217                 cmd_no = HostCmd_CMD_CAU_REG_ACCESS;
1218                 break;
1219         default:
1220                 return -1;
1221         }
1222
1223         return mwifiex_send_cmd(priv, cmd_no, action, 0, reg_rw, true);
1224 }
1225
1226 /*
1227  * Sends IOCTL request to write to a register.
1228  *
1229  * This function allocates the IOCTL request buffer, fills it
1230  * with requisite parameters and calls the IOCTL handler.
1231  */
1232 int
1233 mwifiex_reg_write(struct mwifiex_private *priv, u32 reg_type,
1234                   u32 reg_offset, u32 reg_value)
1235 {
1236         struct mwifiex_ds_reg_rw reg_rw;
1237
1238         reg_rw.type = cpu_to_le32(reg_type);
1239         reg_rw.offset = cpu_to_le32(reg_offset);
1240         reg_rw.value = cpu_to_le32(reg_value);
1241
1242         return mwifiex_reg_mem_ioctl_reg_rw(priv, &reg_rw, HostCmd_ACT_GEN_SET);
1243 }
1244
1245 /*
1246  * Sends IOCTL request to read from a register.
1247  *
1248  * This function allocates the IOCTL request buffer, fills it
1249  * with requisite parameters and calls the IOCTL handler.
1250  */
1251 int
1252 mwifiex_reg_read(struct mwifiex_private *priv, u32 reg_type,
1253                  u32 reg_offset, u32 *value)
1254 {
1255         int ret;
1256         struct mwifiex_ds_reg_rw reg_rw;
1257
1258         reg_rw.type = cpu_to_le32(reg_type);
1259         reg_rw.offset = cpu_to_le32(reg_offset);
1260         ret = mwifiex_reg_mem_ioctl_reg_rw(priv, &reg_rw, HostCmd_ACT_GEN_GET);
1261
1262         if (ret)
1263                 goto done;
1264
1265         *value = le32_to_cpu(reg_rw.value);
1266
1267 done:
1268         return ret;
1269 }
1270
1271 /*
1272  * Sends IOCTL request to read from EEPROM.
1273  *
1274  * This function allocates the IOCTL request buffer, fills it
1275  * with requisite parameters and calls the IOCTL handler.
1276  */
1277 int
1278 mwifiex_eeprom_read(struct mwifiex_private *priv, u16 offset, u16 bytes,
1279                     u8 *value)
1280 {
1281         int ret;
1282         struct mwifiex_ds_read_eeprom rd_eeprom;
1283
1284         rd_eeprom.offset = cpu_to_le16((u16) offset);
1285         rd_eeprom.byte_count = cpu_to_le16((u16) bytes);
1286
1287         /* Send request to firmware */
1288         ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_EEPROM_ACCESS,
1289                                HostCmd_ACT_GEN_GET, 0, &rd_eeprom, true);
1290
1291         if (!ret)
1292                 memcpy(value, rd_eeprom.value, MAX_EEPROM_DATA);
1293         return ret;
1294 }
1295
1296 /*
1297  * This function sets a generic IE. In addition to generic IE, it can
1298  * also handle WPA, WPA2 and WAPI IEs.
1299  */
1300 static int
1301 mwifiex_set_gen_ie_helper(struct mwifiex_private *priv, u8 *ie_data_ptr,
1302                           u16 ie_len)
1303 {
1304         int ret = 0;
1305         struct ieee_types_vendor_header *pvendor_ie;
1306         const u8 wpa_oui[] = { 0x00, 0x50, 0xf2, 0x01 };
1307         const u8 wps_oui[] = { 0x00, 0x50, 0xf2, 0x04 };
1308
1309         /* If the passed length is zero, reset the buffer */
1310         if (!ie_len) {
1311                 priv->gen_ie_buf_len = 0;
1312                 priv->wps.session_enable = false;
1313
1314                 return 0;
1315         } else if (!ie_data_ptr) {
1316                 return -1;
1317         }
1318         pvendor_ie = (struct ieee_types_vendor_header *) ie_data_ptr;
1319         /* Test to see if it is a WPA IE, if not, then it is a gen IE */
1320         if (((pvendor_ie->element_id == WLAN_EID_VENDOR_SPECIFIC) &&
1321              (!memcmp(pvendor_ie->oui, wpa_oui, sizeof(wpa_oui)))) ||
1322             (pvendor_ie->element_id == WLAN_EID_RSN)) {
1323
1324                 /* IE is a WPA/WPA2 IE so call set_wpa function */
1325                 ret = mwifiex_set_wpa_ie_helper(priv, ie_data_ptr, ie_len);
1326                 priv->wps.session_enable = false;
1327
1328                 return ret;
1329         } else if (pvendor_ie->element_id == WLAN_EID_BSS_AC_ACCESS_DELAY) {
1330                 /* IE is a WAPI IE so call set_wapi function */
1331                 ret = mwifiex_set_wapi_ie(priv, ie_data_ptr, ie_len);
1332
1333                 return ret;
1334         }
1335         /*
1336          * Verify that the passed length is not larger than the
1337          * available space remaining in the buffer
1338          */
1339         if (ie_len < (sizeof(priv->gen_ie_buf) - priv->gen_ie_buf_len)) {
1340
1341                 /* Test to see if it is a WPS IE, if so, enable
1342                  * wps session flag
1343                  */
1344                 pvendor_ie = (struct ieee_types_vendor_header *) ie_data_ptr;
1345                 if ((pvendor_ie->element_id == WLAN_EID_VENDOR_SPECIFIC) &&
1346                     (!memcmp(pvendor_ie->oui, wps_oui, sizeof(wps_oui)))) {
1347                         priv->wps.session_enable = true;
1348                         dev_dbg(priv->adapter->dev,
1349                                 "info: WPS Session Enabled.\n");
1350                         ret = mwifiex_set_wps_ie(priv, ie_data_ptr, ie_len);
1351                 }
1352
1353                 /* Append the passed data to the end of the
1354                    genIeBuffer */
1355                 memcpy(priv->gen_ie_buf + priv->gen_ie_buf_len, ie_data_ptr,
1356                        ie_len);
1357                 /* Increment the stored buffer length by the
1358                    size passed */
1359                 priv->gen_ie_buf_len += ie_len;
1360         } else {
1361                 /* Passed data does not fit in the remaining
1362                    buffer space */
1363                 ret = -1;
1364         }
1365
1366         /* Return 0, or -1 for error case */
1367         return ret;
1368 }
1369
1370 /*
1371  * IOCTL request handler to set/get generic IE.
1372  *
1373  * In addition to various generic IEs, this function can also be
1374  * used to set the ARP filter.
1375  */
1376 static int mwifiex_misc_ioctl_gen_ie(struct mwifiex_private *priv,
1377                                      struct mwifiex_ds_misc_gen_ie *gen_ie,
1378                                      u16 action)
1379 {
1380         struct mwifiex_adapter *adapter = priv->adapter;
1381
1382         switch (gen_ie->type) {
1383         case MWIFIEX_IE_TYPE_GEN_IE:
1384                 if (action == HostCmd_ACT_GEN_GET) {
1385                         gen_ie->len = priv->wpa_ie_len;
1386                         memcpy(gen_ie->ie_data, priv->wpa_ie, gen_ie->len);
1387                 } else {
1388                         mwifiex_set_gen_ie_helper(priv, gen_ie->ie_data,
1389                                                   (u16) gen_ie->len);
1390                 }
1391                 break;
1392         case MWIFIEX_IE_TYPE_ARP_FILTER:
1393                 memset(adapter->arp_filter, 0, sizeof(adapter->arp_filter));
1394                 if (gen_ie->len > ARP_FILTER_MAX_BUF_SIZE) {
1395                         adapter->arp_filter_size = 0;
1396                         dev_err(adapter->dev, "invalid ARP filter size\n");
1397                         return -1;
1398                 } else {
1399                         memcpy(adapter->arp_filter, gen_ie->ie_data,
1400                                gen_ie->len);
1401                         adapter->arp_filter_size = gen_ie->len;
1402                 }
1403                 break;
1404         default:
1405                 dev_err(adapter->dev, "invalid IE type\n");
1406                 return -1;
1407         }
1408         return 0;
1409 }
1410
1411 /*
1412  * Sends IOCTL request to set a generic IE.
1413  *
1414  * This function allocates the IOCTL request buffer, fills it
1415  * with requisite parameters and calls the IOCTL handler.
1416  */
1417 int
1418 mwifiex_set_gen_ie(struct mwifiex_private *priv, const u8 *ie, int ie_len)
1419 {
1420         struct mwifiex_ds_misc_gen_ie gen_ie;
1421
1422         if (ie_len > IEEE_MAX_IE_SIZE)
1423                 return -EFAULT;
1424
1425         gen_ie.type = MWIFIEX_IE_TYPE_GEN_IE;
1426         gen_ie.len = ie_len;
1427         memcpy(gen_ie.ie_data, ie, ie_len);
1428         if (mwifiex_misc_ioctl_gen_ie(priv, &gen_ie, HostCmd_ACT_GEN_SET))
1429                 return -EFAULT;
1430
1431         return 0;
1432 }