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_timeout(adapter->cmd_wait_q.wait,
  64                                                   *(cmd_queued->condition),
  65                                                   (12 * HZ));
  66         if (status <= 0) {
  67                 dev_err(adapter->dev, "cmd_wait_q terminated: %d\n", status);
  68                 mwifiex_cancel_all_pending_cmd(adapter);
  69                 return status;
  70         }
  71
  72         status = adapter->cmd_wait_q.status;
  73         adapter->cmd_wait_q.status = 0;
  74
  75         return status;
  76 }
  77
  78 /*
  79  * This function prepares the correct firmware command and
  80  * issues it to set the multicast list.
  81  *
  82  * This function can be used to enable promiscuous mode, or enable all
  83  * multicast packets, or to enable selective multicast.
  84  */
  85 int mwifiex_request_set_multicast_list(struct mwifiex_private *priv,
  86                                 struct mwifiex_multicast_list *mcast_list)
  87 {
  88         int ret = 0;
  89         u16 old_pkt_filter;
  90
  91         old_pkt_filter = priv->curr_pkt_filter;
  92
  93         if (mcast_list->mode == MWIFIEX_PROMISC_MODE) {
  94                 dev_dbg(priv->adapter->dev, "info: Enable Promiscuous mode\n");
  95                 priv->curr_pkt_filter |= HostCmd_ACT_MAC_PROMISCUOUS_ENABLE;
  96                 priv->curr_pkt_filter &=
  97                         ~HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE;
  98         } else {
  99                 /* Multicast */
 100                 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_PROMISCUOUS_ENABLE;
 101                 if (mcast_list->mode == MWIFIEX_ALL_MULTI_MODE) {
 102                         dev_dbg(priv->adapter->dev,
 103                                 "info: Enabling All Multicast!\n");
 104                         priv->curr_pkt_filter |=
 105                                 HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE;
 106                 } else {
 107                         priv->curr_pkt_filter &=
 108                                 ~HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE;
 109                         dev_dbg(priv->adapter->dev,
 110                                 "info: Set multicast list=%d\n",
 111                                 mcast_list->num_multicast_addr);
 112                         /* Send multicast addresses to firmware */
 113                         ret = mwifiex_send_cmd(priv,
 114                                                HostCmd_CMD_MAC_MULTICAST_ADR,
 115                                                HostCmd_ACT_GEN_SET, 0,
 116                                                mcast_list, false);
 117                 }
 118         }
 119         dev_dbg(priv->adapter->dev,
 120                 "info: old_pkt_filter=%#x, curr_pkt_filter=%#x\n",
 121                old_pkt_filter, priv->curr_pkt_filter);
 122         if (old_pkt_filter != priv->curr_pkt_filter) {
 123                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_MAC_CONTROL,
 124                                        HostCmd_ACT_GEN_SET,
 125                                        0, &priv->curr_pkt_filter, false);
 126         }
 127
 128         return ret;
 129 }
 130
 131 /*
 132  * This function fills bss descriptor structure using provided
 133  * information.
 134  * beacon_ie buffer is allocated in this function. It is caller's
 135  * responsibility to free the memory.
 136  */
 137 int mwifiex_fill_new_bss_desc(struct mwifiex_private *priv,
 138                               struct cfg80211_bss *bss,
 139                               struct mwifiex_bssdescriptor *bss_desc)
 140 {
 141         u8 *beacon_ie;
 142         size_t beacon_ie_len;
 143         struct mwifiex_bss_priv *bss_priv = (void *)bss->priv;
 144         const struct cfg80211_bss_ies *ies;
 145
 146         rcu_read_lock();
 147         ies = rcu_dereference(bss->ies);
 148         beacon_ie = kmemdup(ies->data, ies->len, GFP_ATOMIC);
 149         beacon_ie_len = ies->len;
 150         bss_desc->timestamp = ies->tsf;
 151         rcu_read_unlock();
 152
 153         if (!beacon_ie) {
 154                 dev_err(priv->adapter->dev, " failed to alloc beacon_ie\n");
 155                 return -ENOMEM;
 156         }
 157
 158         memcpy(bss_desc->mac_address, bss->bssid, ETH_ALEN);
 159         bss_desc->rssi = bss->signal;
 160         /* The caller of this function will free beacon_ie */
 161         bss_desc->beacon_buf = beacon_ie;
 162         bss_desc->beacon_buf_size = beacon_ie_len;
 163         bss_desc->beacon_period = bss->beacon_interval;
 164         bss_desc->cap_info_bitmap = bss->capability;
 165         bss_desc->bss_band = bss_priv->band;
 166         bss_desc->fw_tsf = bss_priv->fw_tsf;
 167         if (bss_desc->cap_info_bitmap & WLAN_CAPABILITY_PRIVACY) {
 168                 dev_dbg(priv->adapter->dev, "info: InterpretIE: AP WEP enabled\n");
 169                 bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_8021X_WEP;
 170         } else {
 171                 bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_ACCEPT_ALL;
 172         }
 173         if (bss_desc->cap_info_bitmap & WLAN_CAPABILITY_IBSS)
 174                 bss_desc->bss_mode = NL80211_IFTYPE_ADHOC;
 175         else
 176                 bss_desc->bss_mode = NL80211_IFTYPE_STATION;
 177
 178         /* Disable 11ac by default. Enable it only where there
 179          * exist VHT_CAP IE in AP beacon
 180          */
 181         bss_desc->disable_11ac = true;
 182
 183         if (bss_desc->cap_info_bitmap & WLAN_CAPABILITY_SPECTRUM_MGMT)
 184                 bss_desc->sensed_11h = true;
 185
 186         return mwifiex_update_bss_desc_with_ie(priv->adapter, bss_desc);
 187 }
 188
 189 void mwifiex_dnld_txpwr_table(struct mwifiex_private *priv)
 190 {
 191         if (priv->adapter->dt_node) {
 192                 char txpwr[] = {"marvell,00_txpwrlimit"};
 193
 194                 memcpy(&txpwr[8], priv->adapter->country_code, 2);
 195                 mwifiex_dnld_dt_cfgdata(priv, priv->adapter->dt_node, txpwr);
 196         }
 197 }
 198
 199 static int mwifiex_process_country_ie(struct mwifiex_private *priv,
 200                                       struct cfg80211_bss *bss)
 201 {
 202         const u8 *country_ie;
 203         u8 country_ie_len;
 204         struct mwifiex_802_11d_domain_reg *domain_info =
 205                                         &priv->adapter->domain_reg;
 206
 207         rcu_read_lock();
 208         country_ie = ieee80211_bss_get_ie(bss, WLAN_EID_COUNTRY);
 209         if (!country_ie) {
 210                 rcu_read_unlock();
 211                 return 0;
 212         }
 213
 214         country_ie_len = country_ie[1];
 215         if (country_ie_len < IEEE80211_COUNTRY_IE_MIN_LEN) {
 216                 rcu_read_unlock();
 217                 return 0;
 218         }
 219
 220         if (!strncmp(priv->adapter->country_code, &country_ie[2], 2)) {
 221                 rcu_read_unlock();
 222                 wiphy_dbg(priv->wdev->wiphy,
 223                           "11D: skip setting domain info in FW\n");
 224                 return 0;
 225         }
 226         memcpy(priv->adapter->country_code, &country_ie[2], 2);
 227
 228         domain_info->country_code[0] = country_ie[2];
 229         domain_info->country_code[1] = country_ie[3];
 230         domain_info->country_code[2] = ' ';
 231
 232         country_ie_len -= IEEE80211_COUNTRY_STRING_LEN;
 233
 234         domain_info->no_of_triplet =
 235                 country_ie_len / sizeof(struct ieee80211_country_ie_triplet);
 236
 237         memcpy((u8 *)domain_info->triplet,
 238                &country_ie[2] + IEEE80211_COUNTRY_STRING_LEN, country_ie_len);
 239
 240         rcu_read_unlock();
 241
 242         if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
 243                              HostCmd_ACT_GEN_SET, 0, NULL, false)) {
 244                 wiphy_err(priv->adapter->wiphy,
 245                           "11D: setting domain info in FW\n");
 246                 return -1;
 247         }
 248
 249         mwifiex_dnld_txpwr_table(priv);
 250
 251         return 0;
 252 }
 253
 254 /*
 255  * In Ad-Hoc mode, the IBSS is created if not found in scan list.
 256  * In both Ad-Hoc and infra mode, an deauthentication is performed
 257  * first.
 258  */
 259 int mwifiex_bss_start(struct mwifiex_private *priv, struct cfg80211_bss *bss,
 260                       struct cfg80211_ssid *req_ssid)
 261 {
 262         int ret;
 263         struct mwifiex_adapter *adapter = priv->adapter;
 264         struct mwifiex_bssdescriptor *bss_desc = NULL;
 265
 266         priv->scan_block = false;
 267
 268         if (bss) {
 269                 mwifiex_process_country_ie(priv, bss);
 270
 271                 /* Allocate and fill new bss descriptor */
 272                 bss_desc = kzalloc(sizeof(struct mwifiex_bssdescriptor),
 273                                    GFP_KERNEL);
 274                 if (!bss_desc)
 275                         return -ENOMEM;
 276
 277                 ret = mwifiex_fill_new_bss_desc(priv, bss, bss_desc);
 278                 if (ret)
 279                         goto done;
 280         }
 281
 282         if (priv->bss_mode == NL80211_IFTYPE_STATION ||
 283             priv->bss_mode == NL80211_IFTYPE_P2P_CLIENT) {
 284                 u8 config_bands;
 285
 286                 ret = mwifiex_deauthenticate(priv, NULL);
 287                 if (ret)
 288                         goto done;
 289
 290                 if (!bss_desc)
 291                         return -1;
 292
 293                 if (mwifiex_band_to_radio_type(bss_desc->bss_band) ==
 294                                                 HostCmd_SCAN_RADIO_TYPE_BG)
 295                         config_bands = BAND_B | BAND_G | BAND_GN;
 296                 else
 297                         config_bands = BAND_A | BAND_AN | BAND_AAC;
 298
 299                 if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands))
 300                         adapter->config_bands = config_bands;
 301
 302                 ret = mwifiex_check_network_compatibility(priv, bss_desc);
 303                 if (ret)
 304                         goto done;
 305
 306                 if (mwifiex_11h_get_csa_closed_channel(priv) ==
 307                                                         (u8)bss_desc->channel) {
 308                         dev_err(adapter->dev,
 309                                 "Attempt to reconnect on csa closed chan(%d)\n",
 310                                 bss_desc->channel);
 311                         goto done;
 312                 }
 313
 314                 dev_dbg(adapter->dev, "info: SSID found in scan list ... "
 315                                       "associating...\n");
 316
 317                 mwifiex_stop_net_dev_queue(priv->netdev, adapter);
 318                 if (netif_carrier_ok(priv->netdev))
 319                         netif_carrier_off(priv->netdev);
 320
 321                 /* Clear any past association response stored for
 322                  * application retrieval */
 323                 priv->assoc_rsp_size = 0;
 324                 ret = mwifiex_associate(priv, bss_desc);
 325
 326                 /* If auth type is auto and association fails using open mode,
 327                  * try to connect using shared mode */
 328                 if (ret == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG &&
 329                     priv->sec_info.is_authtype_auto &&
 330                     priv->sec_info.wep_enabled) {
 331                         priv->sec_info.authentication_mode =
 332                                                 NL80211_AUTHTYPE_SHARED_KEY;
 333                         ret = mwifiex_associate(priv, bss_desc);
 334                 }
 335
 336                 if (bss)
 337                         cfg80211_put_bss(priv->adapter->wiphy, bss);
 338         } else {
 339                 /* Adhoc mode */
 340                 /* If the requested SSID matches current SSID, return */
 341                 if (bss_desc && bss_desc->ssid.ssid_len &&
 342                     (!mwifiex_ssid_cmp(&priv->curr_bss_params.bss_descriptor.
 343                                        ssid, &bss_desc->ssid))) {
 344                         ret = 0;
 345                         goto done;
 346                 }
 347
 348                 /* Exit Adhoc mode first */
 349                 dev_dbg(adapter->dev, "info: Sending Adhoc Stop\n");
 350                 ret = mwifiex_deauthenticate(priv, NULL);
 351                 if (ret)
 352                         goto done;
 353
 354                 priv->adhoc_is_link_sensed = false;
 355
 356                 ret = mwifiex_check_network_compatibility(priv, bss_desc);
 357
 358                 mwifiex_stop_net_dev_queue(priv->netdev, adapter);
 359                 if (netif_carrier_ok(priv->netdev))
 360                         netif_carrier_off(priv->netdev);
 361
 362                 if (!ret) {
 363                         dev_dbg(adapter->dev, "info: network found in scan"
 364                                                         " list. Joining...\n");
 365                         ret = mwifiex_adhoc_join(priv, bss_desc);
 366                         if (bss)
 367                                 cfg80211_put_bss(priv->adapter->wiphy, bss);
 368                 } else {
 369                         dev_dbg(adapter->dev, "info: Network not found in "
 370                                 "the list, creating adhoc with ssid = %s\n",
 371                                 req_ssid->ssid);
 372                         ret = mwifiex_adhoc_start(priv, req_ssid);
 373                 }
 374         }
 375
 376 done:
 377         /* beacon_ie buffer was allocated in function
 378          * mwifiex_fill_new_bss_desc(). Free it now.
 379          */
 380         if (bss_desc)
 381                 kfree(bss_desc->beacon_buf);
 382         kfree(bss_desc);
 383         return ret;
 384 }
 385
 386 /*
 387  * IOCTL request handler to set host sleep configuration.
 388  *
 389  * This function prepares the correct firmware command and
 390  * issues it.
 391  */
 392 static int mwifiex_set_hs_params(struct mwifiex_private *priv, u16 action,
 393                                  int cmd_type, struct mwifiex_ds_hs_cfg *hs_cfg)
 394
 395 {
 396         struct mwifiex_adapter *adapter = priv->adapter;
 397         int status = 0;
 398         u32 prev_cond = 0;
 399
 400         if (!hs_cfg)
 401                 return -ENOMEM;
 402
 403         switch (action) {
 404         case HostCmd_ACT_GEN_SET:
 405                 if (adapter->pps_uapsd_mode) {
 406                         dev_dbg(adapter->dev, "info: Host Sleep IOCTL"
 407                                 " is blocked in UAPSD/PPS mode\n");
 408                         status = -1;
 409                         break;
 410                 }
 411                 if (hs_cfg->is_invoke_hostcmd) {
 412                         if (hs_cfg->conditions == HS_CFG_CANCEL) {
 413                                 if (!adapter->is_hs_configured)
 414                                         /* Already cancelled */
 415                                         break;
 416                                 /* Save previous condition */
 417                                 prev_cond = le32_to_cpu(adapter->hs_cfg
 418                                                         .conditions);
 419                                 adapter->hs_cfg.conditions =
 420                                                 cpu_to_le32(hs_cfg->conditions);
 421                         } else if (hs_cfg->conditions) {
 422                                 adapter->hs_cfg.conditions =
 423                                                 cpu_to_le32(hs_cfg->conditions);
 424                                 adapter->hs_cfg.gpio = (u8)hs_cfg->gpio;
 425                                 if (hs_cfg->gap)
 426                                         adapter->hs_cfg.gap = (u8)hs_cfg->gap;
 427                         } else if (adapter->hs_cfg.conditions ==
 428                                    cpu_to_le32(HS_CFG_CANCEL)) {
 429                                 /* Return failure if no parameters for HS
 430                                    enable */
 431                                 status = -1;
 432                                 break;
 433                         }
 434
 435                         status = mwifiex_send_cmd(priv,
 436                                                   HostCmd_CMD_802_11_HS_CFG_ENH,
 437                                                   HostCmd_ACT_GEN_SET, 0,
 438                                                   &adapter->hs_cfg,
 439                                                   cmd_type == MWIFIEX_SYNC_CMD);
 440
 441                         if (hs_cfg->conditions == HS_CFG_CANCEL)
 442                                 /* Restore previous condition */
 443                                 adapter->hs_cfg.conditions =
 444                                                 cpu_to_le32(prev_cond);
 445                 } else {
 446                         adapter->hs_cfg.conditions =
 447                                                 cpu_to_le32(hs_cfg->conditions);
 448                         adapter->hs_cfg.gpio = (u8)hs_cfg->gpio;
 449                         adapter->hs_cfg.gap = (u8)hs_cfg->gap;
 450                 }
 451                 break;
 452         case HostCmd_ACT_GEN_GET:
 453                 hs_cfg->conditions = le32_to_cpu(adapter->hs_cfg.conditions);
 454                 hs_cfg->gpio = adapter->hs_cfg.gpio;
 455                 hs_cfg->gap = adapter->hs_cfg.gap;
 456                 break;
 457         default:
 458                 status = -1;
 459                 break;
 460         }
 461
 462         return status;
 463 }
 464
 465 /*
 466  * Sends IOCTL request to cancel the existing Host Sleep configuration.
 467  *
 468  * This function allocates the IOCTL request buffer, fills it
 469  * with requisite parameters and calls the IOCTL handler.
 470  */
 471 int mwifiex_cancel_hs(struct mwifiex_private *priv, int cmd_type)
 472 {
 473         struct mwifiex_ds_hs_cfg hscfg;
 474
 475         hscfg.conditions = HS_CFG_CANCEL;
 476         hscfg.is_invoke_hostcmd = true;
 477
 478         return mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_SET,
 479                                     cmd_type, &hscfg);
 480 }
 481 EXPORT_SYMBOL_GPL(mwifiex_cancel_hs);
 482
 483 /*
 484  * Sends IOCTL request to cancel the existing Host Sleep configuration.
 485  *
 486  * This function allocates the IOCTL request buffer, fills it
 487  * with requisite parameters and calls the IOCTL handler.
 488  */
 489 int mwifiex_enable_hs(struct mwifiex_adapter *adapter)
 490 {
 491         struct mwifiex_ds_hs_cfg hscfg;
 492         struct mwifiex_private *priv;
 493         int i;
 494
 495         if (disconnect_on_suspend) {
 496                 for (i = 0; i < adapter->priv_num; i++) {
 497                         priv = adapter->priv[i];
 498                         if (priv)
 499                                 mwifiex_deauthenticate(priv, NULL);
 500                 }
 501         }
 502
 503         if (adapter->hs_activated) {
 504                 dev_dbg(adapter->dev, "cmd: HS Already activated\n");
 505                 return true;
 506         }
 507
 508         adapter->hs_activate_wait_q_woken = false;
 509
 510         memset(&hscfg, 0, sizeof(struct mwifiex_ds_hs_cfg));
 511         hscfg.is_invoke_hostcmd = true;
 512
 513         adapter->hs_enabling = true;
 514         mwifiex_cancel_all_pending_cmd(adapter);
 515
 516         if (mwifiex_set_hs_params(mwifiex_get_priv(adapter,
 517                                                    MWIFIEX_BSS_ROLE_STA),
 518                                   HostCmd_ACT_GEN_SET, MWIFIEX_SYNC_CMD,
 519                                   &hscfg)) {
 520                 dev_err(adapter->dev, "IOCTL request HS enable failed\n");
 521                 return false;
 522         }
 523
 524         if (wait_event_interruptible_timeout(adapter->hs_activate_wait_q,
 525                                              adapter->hs_activate_wait_q_woken,
 526                                              (10 * HZ)) <= 0) {
 527                 dev_err(adapter->dev, "hs_activate_wait_q terminated\n");
 528                 return false;
 529         }
 530
 531         return true;
 532 }
 533 EXPORT_SYMBOL_GPL(mwifiex_enable_hs);
 534
 535 /*
 536  * IOCTL request handler to get BSS information.
 537  *
 538  * This function collates the information from different driver structures
 539  * to send to the user.
 540  */
 541 int mwifiex_get_bss_info(struct mwifiex_private *priv,
 542                          struct mwifiex_bss_info *info)
 543 {
 544         struct mwifiex_adapter *adapter = priv->adapter;
 545         struct mwifiex_bssdescriptor *bss_desc;
 546
 547         if (!info)
 548                 return -1;
 549
 550         bss_desc = &priv->curr_bss_params.bss_descriptor;
 551
 552         info->bss_mode = priv->bss_mode;
 553
 554         memcpy(&info->ssid, &bss_desc->ssid, sizeof(struct cfg80211_ssid));
 555
 556         memcpy(&info->bssid, &bss_desc->mac_address, ETH_ALEN);
 557
 558         info->bss_chan = bss_desc->channel;
 559
 560         memcpy(info->country_code, adapter->country_code,
 561                IEEE80211_COUNTRY_STRING_LEN);
 562
 563         info->media_connected = priv->media_connected;
 564
 565         info->max_power_level = priv->max_tx_power_level;
 566         info->min_power_level = priv->min_tx_power_level;
 567
 568         info->adhoc_state = priv->adhoc_state;
 569
 570         info->bcn_nf_last = priv->bcn_nf_last;
 571
 572         if (priv->sec_info.wep_enabled)
 573                 info->wep_status = true;
 574         else
 575                 info->wep_status = false;
 576
 577         info->is_hs_configured = adapter->is_hs_configured;
 578         info->is_deep_sleep = adapter->is_deep_sleep;
 579
 580         return 0;
 581 }
 582
 583 /*
 584  * The function disables auto deep sleep mode.
 585  */
 586 int mwifiex_disable_auto_ds(struct mwifiex_private *priv)
 587 {
 588         struct mwifiex_ds_auto_ds auto_ds;
 589
 590         auto_ds.auto_ds = DEEP_SLEEP_OFF;
 591
 592         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_PS_MODE_ENH,
 593                                 DIS_AUTO_PS, BITMAP_AUTO_DS, &auto_ds, true);
 594 }
 595 EXPORT_SYMBOL_GPL(mwifiex_disable_auto_ds);
 596
 597 /*
 598  * Sends IOCTL request to get the data rate.
 599  *
 600  * This function allocates the IOCTL request buffer, fills it
 601  * with requisite parameters and calls the IOCTL handler.
 602  */
 603 int mwifiex_drv_get_data_rate(struct mwifiex_private *priv, u32 *rate)
 604 {
 605         int ret;
 606
 607         ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_TX_RATE_QUERY,
 608                                HostCmd_ACT_GEN_GET, 0, NULL, true);
 609
 610         if (!ret) {
 611                 if (priv->is_data_rate_auto)
 612                         *rate = mwifiex_index_to_data_rate(priv, priv->tx_rate,
 613                                                            priv->tx_htinfo);
 614                 else
 615                         *rate = priv->data_rate;
 616         }
 617
 618         return ret;
 619 }
 620
 621 /*
 622  * IOCTL request handler to set tx power configuration.
 623  *
 624  * This function prepares the correct firmware command and
 625  * issues it.
 626  *
 627  * For non-auto power mode, all the following power groups are set -
 628  *      - Modulation class HR/DSSS
 629  *      - Modulation class OFDM
 630  *      - Modulation class HTBW20
 631  *      - Modulation class HTBW40
 632  */
 633 int mwifiex_set_tx_power(struct mwifiex_private *priv,
 634                          struct mwifiex_power_cfg *power_cfg)
 635 {
 636         int ret;
 637         struct host_cmd_ds_txpwr_cfg *txp_cfg;
 638         struct mwifiex_types_power_group *pg_tlv;
 639         struct mwifiex_power_group *pg;
 640         u8 *buf;
 641         u16 dbm = 0;
 642
 643         if (!power_cfg->is_power_auto) {
 644                 dbm = (u16) power_cfg->power_level;
 645                 if ((dbm < priv->min_tx_power_level) ||
 646                     (dbm > priv->max_tx_power_level)) {
 647                         dev_err(priv->adapter->dev, "txpower value %d dBm"
 648                                 " is out of range (%d dBm-%d dBm)\n",
 649                                 dbm, priv->min_tx_power_level,
 650                                 priv->max_tx_power_level);
 651                         return -1;
 652                 }
 653         }
 654         buf = kzalloc(MWIFIEX_SIZE_OF_CMD_BUFFER, GFP_KERNEL);
 655         if (!buf)
 656                 return -ENOMEM;
 657
 658         txp_cfg = (struct host_cmd_ds_txpwr_cfg *) buf;
 659         txp_cfg->action = cpu_to_le16(HostCmd_ACT_GEN_SET);
 660         if (!power_cfg->is_power_auto) {
 661                 txp_cfg->mode = cpu_to_le32(1);
 662                 pg_tlv = (struct mwifiex_types_power_group *)
 663                          (buf + sizeof(struct host_cmd_ds_txpwr_cfg));
 664                 pg_tlv->type = cpu_to_le16(TLV_TYPE_POWER_GROUP);
 665                 pg_tlv->length =
 666                         cpu_to_le16(4 * sizeof(struct mwifiex_power_group));
 667                 pg = (struct mwifiex_power_group *)
 668                      (buf + sizeof(struct host_cmd_ds_txpwr_cfg)
 669                       + sizeof(struct mwifiex_types_power_group));
 670                 /* Power group for modulation class HR/DSSS */
 671                 pg->first_rate_code = 0x00;
 672                 pg->last_rate_code = 0x03;
 673                 pg->modulation_class = MOD_CLASS_HR_DSSS;
 674                 pg->power_step = 0;
 675                 pg->power_min = (s8) dbm;
 676                 pg->power_max = (s8) dbm;
 677                 pg++;
 678                 /* Power group for modulation class OFDM */
 679                 pg->first_rate_code = 0x00;
 680                 pg->last_rate_code = 0x07;
 681                 pg->modulation_class = MOD_CLASS_OFDM;
 682                 pg->power_step = 0;
 683                 pg->power_min = (s8) dbm;
 684                 pg->power_max = (s8) dbm;
 685                 pg++;
 686                 /* Power group for modulation class HTBW20 */
 687                 pg->first_rate_code = 0x00;
 688                 pg->last_rate_code = 0x20;
 689                 pg->modulation_class = MOD_CLASS_HT;
 690                 pg->power_step = 0;
 691                 pg->power_min = (s8) dbm;
 692                 pg->power_max = (s8) dbm;
 693                 pg->ht_bandwidth = HT_BW_20;
 694                 pg++;
 695                 /* Power group for modulation class HTBW40 */
 696                 pg->first_rate_code = 0x00;
 697                 pg->last_rate_code = 0x20;
 698                 pg->modulation_class = MOD_CLASS_HT;
 699                 pg->power_step = 0;
 700                 pg->power_min = (s8) dbm;
 701                 pg->power_max = (s8) dbm;
 702                 pg->ht_bandwidth = HT_BW_40;
 703         }
 704         ret = mwifiex_send_cmd(priv, HostCmd_CMD_TXPWR_CFG,
 705                                HostCmd_ACT_GEN_SET, 0, buf, true);
 706
 707         kfree(buf);
 708         return ret;
 709 }
 710
 711 /*
 712  * IOCTL request handler to get power save mode.
 713  *
 714  * This function prepares the correct firmware command and
 715  * issues it.
 716  */
 717 int mwifiex_drv_set_power(struct mwifiex_private *priv, u32 *ps_mode)
 718 {
 719         int ret;
 720         struct mwifiex_adapter *adapter = priv->adapter;
 721         u16 sub_cmd;
 722
 723         if (*ps_mode)
 724                 adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_PSP;
 725         else
 726                 adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_CAM;
 727         sub_cmd = (*ps_mode) ? EN_AUTO_PS : DIS_AUTO_PS;
 728         ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_PS_MODE_ENH,
 729                                sub_cmd, BITMAP_STA_PS, NULL, true);
 730         if ((!ret) && (sub_cmd == DIS_AUTO_PS))
 731                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_PS_MODE_ENH,
 732                                        GET_PS, 0, NULL, false);
 733
 734         return ret;
 735 }
 736
 737 /*
 738  * IOCTL request handler to set/reset WPA IE.
 739  *
 740  * The supplied WPA IE is treated as a opaque buffer. Only the first field
 741  * is checked to determine WPA version. If buffer length is zero, the existing
 742  * WPA IE is reset.
 743  */
 744 static int mwifiex_set_wpa_ie_helper(struct mwifiex_private *priv,
 745                                      u8 *ie_data_ptr, u16 ie_len)
 746 {
 747         if (ie_len) {
 748                 if (ie_len > sizeof(priv->wpa_ie)) {
 749                         dev_err(priv->adapter->dev,
 750                                 "failed to copy WPA IE, too big\n");
 751                         return -1;
 752                 }
 753                 memcpy(priv->wpa_ie, ie_data_ptr, ie_len);
 754                 priv->wpa_ie_len = (u8) ie_len;
 755                 dev_dbg(priv->adapter->dev, "cmd: Set Wpa_ie_len=%d IE=%#x\n",
 756                         priv->wpa_ie_len, priv->wpa_ie[0]);
 757
 758                 if (priv->wpa_ie[0] == WLAN_EID_VENDOR_SPECIFIC) {
 759                         priv->sec_info.wpa_enabled = true;
 760                 } else if (priv->wpa_ie[0] == WLAN_EID_RSN) {
 761                         priv->sec_info.wpa2_enabled = true;
 762                 } else {
 763                         priv->sec_info.wpa_enabled = false;
 764                         priv->sec_info.wpa2_enabled = false;
 765                 }
 766         } else {
 767                 memset(priv->wpa_ie, 0, sizeof(priv->wpa_ie));
 768                 priv->wpa_ie_len = 0;
 769                 dev_dbg(priv->adapter->dev, "info: reset wpa_ie_len=%d IE=%#x\n",
 770                         priv->wpa_ie_len, priv->wpa_ie[0]);
 771                 priv->sec_info.wpa_enabled = false;
 772                 priv->sec_info.wpa2_enabled = false;
 773         }
 774
 775         return 0;
 776 }
 777
 778 /*
 779  * IOCTL request handler to set/reset WAPI IE.
 780  *
 781  * The supplied WAPI IE is treated as a opaque buffer. Only the first field
 782  * is checked to internally enable WAPI. If buffer length is zero, the existing
 783  * WAPI IE is reset.
 784  */
 785 static int mwifiex_set_wapi_ie(struct mwifiex_private *priv,
 786                                u8 *ie_data_ptr, u16 ie_len)
 787 {
 788         if (ie_len) {
 789                 if (ie_len > sizeof(priv->wapi_ie)) {
 790                         dev_dbg(priv->adapter->dev,
 791                                 "info: failed to copy WAPI IE, too big\n");
 792                         return -1;
 793                 }
 794                 memcpy(priv->wapi_ie, ie_data_ptr, ie_len);
 795                 priv->wapi_ie_len = ie_len;
 796                 dev_dbg(priv->adapter->dev, "cmd: Set wapi_ie_len=%d IE=%#x\n",
 797                         priv->wapi_ie_len, priv->wapi_ie[0]);
 798
 799                 if (priv->wapi_ie[0] == WLAN_EID_BSS_AC_ACCESS_DELAY)
 800                         priv->sec_info.wapi_enabled = true;
 801         } else {
 802                 memset(priv->wapi_ie, 0, sizeof(priv->wapi_ie));
 803                 priv->wapi_ie_len = ie_len;
 804                 dev_dbg(priv->adapter->dev,
 805                         "info: Reset wapi_ie_len=%d IE=%#x\n",
 806                        priv->wapi_ie_len, priv->wapi_ie[0]);
 807                 priv->sec_info.wapi_enabled = false;
 808         }
 809         return 0;
 810 }
 811
 812 /*
 813  * IOCTL request handler to set/reset WPS IE.
 814  *
 815  * The supplied WPS IE is treated as a opaque buffer. Only the first field
 816  * is checked to internally enable WPS. If buffer length is zero, the existing
 817  * WPS IE is reset.
 818  */
 819 static int mwifiex_set_wps_ie(struct mwifiex_private *priv,
 820                                u8 *ie_data_ptr, u16 ie_len)
 821 {
 822         if (ie_len) {
 823                 if (ie_len > MWIFIEX_MAX_VSIE_LEN) {
 824                         dev_dbg(priv->adapter->dev,
 825                                 "info: failed to copy WPS IE, too big\n");
 826                         return -1;
 827                 }
 828
 829                 priv->wps_ie = kzalloc(MWIFIEX_MAX_VSIE_LEN, GFP_KERNEL);
 830                 if (!priv->wps_ie)
 831                         return -ENOMEM;
 832
 833                 memcpy(priv->wps_ie, ie_data_ptr, ie_len);
 834                 priv->wps_ie_len = ie_len;
 835                 dev_dbg(priv->adapter->dev, "cmd: Set wps_ie_len=%d IE=%#x\n",
 836                         priv->wps_ie_len, priv->wps_ie[0]);
 837         } else {
 838                 kfree(priv->wps_ie);
 839                 priv->wps_ie_len = ie_len;
 840                 dev_dbg(priv->adapter->dev,
 841                         "info: Reset wps_ie_len=%d\n", priv->wps_ie_len);
 842         }
 843         return 0;
 844 }
 845
 846 /*
 847  * IOCTL request handler to set WAPI key.
 848  *
 849  * This function prepares the correct firmware command and
 850  * issues it.
 851  */
 852 static int mwifiex_sec_ioctl_set_wapi_key(struct mwifiex_private *priv,
 853                                struct mwifiex_ds_encrypt_key *encrypt_key)
 854 {
 855
 856         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
 857                                 HostCmd_ACT_GEN_SET, KEY_INFO_ENABLED,
 858                                 encrypt_key, true);
 859 }
 860
 861 /*
 862  * IOCTL request handler to set WEP network key.
 863  *
 864  * This function prepares the correct firmware command and
 865  * issues it, after validation checks.
 866  */
 867 static int mwifiex_sec_ioctl_set_wep_key(struct mwifiex_private *priv,
 868                               struct mwifiex_ds_encrypt_key *encrypt_key)
 869 {
 870         struct mwifiex_adapter *adapter = priv->adapter;
 871         int ret;
 872         struct mwifiex_wep_key *wep_key;
 873         int index;
 874
 875         if (priv->wep_key_curr_index >= NUM_WEP_KEYS)
 876                 priv->wep_key_curr_index = 0;
 877         wep_key = &priv->wep_key[priv->wep_key_curr_index];
 878         index = encrypt_key->key_index;
 879         if (encrypt_key->key_disable) {
 880                 priv->sec_info.wep_enabled = 0;
 881         } else if (!encrypt_key->key_len) {
 882                 /* Copy the required key as the current key */
 883                 wep_key = &priv->wep_key[index];
 884                 if (!wep_key->key_length) {
 885                         dev_err(adapter->dev,
 886                                 "key not set, so cannot enable it\n");
 887                         return -1;
 888                 }
 889
 890                 if (adapter->fw_key_api_major_ver == FW_KEY_API_VER_MAJOR_V2) {
 891                         memcpy(encrypt_key->key_material,
 892                                wep_key->key_material, wep_key->key_length);
 893                         encrypt_key->key_len = wep_key->key_length;
 894                 }
 895
 896                 priv->wep_key_curr_index = (u16) index;
 897                 priv->sec_info.wep_enabled = 1;
 898         } else {
 899                 wep_key = &priv->wep_key[index];
 900                 memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
 901                 /* Copy the key in the driver */
 902                 memcpy(wep_key->key_material,
 903                        encrypt_key->key_material,
 904                        encrypt_key->key_len);
 905                 wep_key->key_index = index;
 906                 wep_key->key_length = encrypt_key->key_len;
 907                 priv->sec_info.wep_enabled = 1;
 908         }
 909         if (wep_key->key_length) {
 910                 void *enc_key;
 911
 912                 if (encrypt_key->key_disable)
 913                         memset(&priv->wep_key[index], 0,
 914                                sizeof(struct mwifiex_wep_key));
 915
 916                 if (adapter->fw_key_api_major_ver == FW_KEY_API_VER_MAJOR_V2)
 917                         enc_key = encrypt_key;
 918                 else
 919                         enc_key = NULL;
 920
 921                 /* Send request to firmware */
 922                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
 923                                        HostCmd_ACT_GEN_SET, 0, enc_key, false);
 924                 if (ret)
 925                         return ret;
 926         }
 927
 928         if (priv->sec_info.wep_enabled)
 929                 priv->curr_pkt_filter |= HostCmd_ACT_MAC_WEP_ENABLE;
 930         else
 931                 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_WEP_ENABLE;
 932
 933         ret = mwifiex_send_cmd(priv, HostCmd_CMD_MAC_CONTROL,
 934                                HostCmd_ACT_GEN_SET, 0,
 935                                &priv->curr_pkt_filter, true);
 936
 937         return ret;
 938 }
 939
 940 /*
 941  * IOCTL request handler to set WPA key.
 942  *
 943  * This function prepares the correct firmware command and
 944  * issues it, after validation checks.
 945  *
 946  * Current driver only supports key length of up to 32 bytes.
 947  *
 948  * This function can also be used to disable a currently set key.
 949  */
 950 static int mwifiex_sec_ioctl_set_wpa_key(struct mwifiex_private *priv,
 951                               struct mwifiex_ds_encrypt_key *encrypt_key)
 952 {
 953         int ret;
 954         u8 remove_key = false;
 955         struct host_cmd_ds_802_11_key_material *ibss_key;
 956
 957         /* Current driver only supports key length of up to 32 bytes */
 958         if (encrypt_key->key_len > WLAN_MAX_KEY_LEN) {
 959                 dev_err(priv->adapter->dev, "key length too long\n");
 960                 return -1;
 961         }
 962
 963         if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
 964                 /*
 965                  * IBSS/WPA-None uses only one key (Group) for both receiving
 966                  * and sending unicast and multicast packets.
 967                  */
 968                 /* Send the key as PTK to firmware */
 969                 encrypt_key->key_index = MWIFIEX_KEY_INDEX_UNICAST;
 970                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
 971                                        HostCmd_ACT_GEN_SET,
 972                                        KEY_INFO_ENABLED, encrypt_key, false);
 973                 if (ret)
 974                         return ret;
 975
 976                 ibss_key = &priv->aes_key;
 977                 memset(ibss_key, 0,
 978                        sizeof(struct host_cmd_ds_802_11_key_material));
 979                 /* Copy the key in the driver */
 980                 memcpy(ibss_key->key_param_set.key, encrypt_key->key_material,
 981                        encrypt_key->key_len);
 982                 memcpy(&ibss_key->key_param_set.key_len, &encrypt_key->key_len,
 983                        sizeof(ibss_key->key_param_set.key_len));
 984                 ibss_key->key_param_set.key_type_id
 985                         = cpu_to_le16(KEY_TYPE_ID_TKIP);
 986                 ibss_key->key_param_set.key_info = cpu_to_le16(KEY_ENABLED);
 987
 988                 /* Send the key as GTK to firmware */
 989                 encrypt_key->key_index = ~MWIFIEX_KEY_INDEX_UNICAST;
 990         }
 991
 992         if (!encrypt_key->key_index)
 993                 encrypt_key->key_index = MWIFIEX_KEY_INDEX_UNICAST;
 994
 995         if (remove_key)
 996                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
 997                                        HostCmd_ACT_GEN_SET,
 998                                        !KEY_INFO_ENABLED, encrypt_key, true);
 999         else
1000                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
1001                                        HostCmd_ACT_GEN_SET,
1002                                        KEY_INFO_ENABLED, encrypt_key, true);
1003
1004         return ret;
1005 }
1006
1007 /*
1008  * IOCTL request handler to set/get network keys.
1009  *
1010  * This is a generic key handling function which supports WEP, WPA
1011  * and WAPI.
1012  */
1013 static int
1014 mwifiex_sec_ioctl_encrypt_key(struct mwifiex_private *priv,
1015                               struct mwifiex_ds_encrypt_key *encrypt_key)
1016 {
1017         int status;
1018
1019         if (encrypt_key->is_wapi_key)
1020                 status = mwifiex_sec_ioctl_set_wapi_key(priv, encrypt_key);
1021         else if (encrypt_key->key_len > WLAN_KEY_LEN_WEP104)
1022                 status = mwifiex_sec_ioctl_set_wpa_key(priv, encrypt_key);
1023         else
1024                 status = mwifiex_sec_ioctl_set_wep_key(priv, encrypt_key);
1025         return status;
1026 }
1027
1028 /*
1029  * This function returns the driver version.
1030  */
1031 int
1032 mwifiex_drv_get_driver_version(struct mwifiex_adapter *adapter, char *version,
1033                                int max_len)
1034 {
1035         union {
1036                 u32 l;
1037                 u8 c[4];
1038         } ver;
1039         char fw_ver[32];
1040
1041         ver.l = adapter->fw_release_number;
1042         sprintf(fw_ver, "%u.%u.%u.p%u", ver.c[2], ver.c[1], ver.c[0], ver.c[3]);
1043
1044         snprintf(version, max_len, driver_version, fw_ver);
1045
1046         dev_dbg(adapter->dev, "info: MWIFIEX VERSION: %s\n", version);
1047
1048         return 0;
1049 }
1050
1051 /*
1052  * Sends IOCTL request to set encoding parameters.
1053  *
1054  * This function allocates the IOCTL request buffer, fills it
1055  * with requisite parameters and calls the IOCTL handler.
1056  */
1057 int mwifiex_set_encode(struct mwifiex_private *priv, struct key_params *kp,
1058                        const u8 *key, int key_len, u8 key_index,
1059                        const u8 *mac_addr, int disable)
1060 {
1061         struct mwifiex_ds_encrypt_key encrypt_key;
1062
1063         memset(&encrypt_key, 0, sizeof(struct mwifiex_ds_encrypt_key));
1064         encrypt_key.key_len = key_len;
1065         encrypt_key.key_index = key_index;
1066
1067         if (kp && kp->cipher == WLAN_CIPHER_SUITE_AES_CMAC)
1068                 encrypt_key.is_igtk_key = true;
1069
1070         if (!disable) {
1071                 if (key_len)
1072                         memcpy(encrypt_key.key_material, key, key_len);
1073                 else
1074                         encrypt_key.is_current_wep_key = true;
1075
1076                 if (mac_addr)
1077                         memcpy(encrypt_key.mac_addr, mac_addr, ETH_ALEN);
1078                 if (kp && kp->seq && kp->seq_len) {
1079                         memcpy(encrypt_key.pn, kp->seq, kp->seq_len);
1080                         encrypt_key.pn_len = kp->seq_len;
1081                         encrypt_key.is_rx_seq_valid = true;
1082                 }
1083         } else {
1084                 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP)
1085                         return 0;
1086                 encrypt_key.key_disable = true;
1087                 if (mac_addr)
1088                         memcpy(encrypt_key.mac_addr, mac_addr, ETH_ALEN);
1089         }
1090
1091         return mwifiex_sec_ioctl_encrypt_key(priv, &encrypt_key);
1092 }
1093
1094 /*
1095  * Sends IOCTL request to get extended version.
1096  *
1097  * This function allocates the IOCTL request buffer, fills it
1098  * with requisite parameters and calls the IOCTL handler.
1099  */
1100 int
1101 mwifiex_get_ver_ext(struct mwifiex_private *priv)
1102 {
1103         struct mwifiex_ver_ext ver_ext;
1104
1105         memset(&ver_ext, 0, sizeof(struct host_cmd_ds_version_ext));
1106         if (mwifiex_send_cmd(priv, HostCmd_CMD_VERSION_EXT,
1107                              HostCmd_ACT_GEN_GET, 0, &ver_ext, true))
1108                 return -1;
1109
1110         return 0;
1111 }
1112
1113 int
1114 mwifiex_remain_on_chan_cfg(struct mwifiex_private *priv, u16 action,
1115                            struct ieee80211_channel *chan,
1116                            unsigned int duration)
1117 {
1118         struct host_cmd_ds_remain_on_chan roc_cfg;
1119         u8 sc;
1120
1121         memset(&roc_cfg, 0, sizeof(roc_cfg));
1122         roc_cfg.action = cpu_to_le16(action);
1123         if (action == HostCmd_ACT_GEN_SET) {
1124                 roc_cfg.band_cfg = chan->band;
1125                 sc = mwifiex_chan_type_to_sec_chan_offset(NL80211_CHAN_NO_HT);
1126                 roc_cfg.band_cfg |= (sc << 2);
1127
1128                 roc_cfg.channel =
1129                         ieee80211_frequency_to_channel(chan->center_freq);
1130                 roc_cfg.duration = cpu_to_le32(duration);
1131         }
1132         if (mwifiex_send_cmd(priv, HostCmd_CMD_REMAIN_ON_CHAN,
1133                              action, 0, &roc_cfg, true)) {
1134                 dev_err(priv->adapter->dev, "failed to remain on channel\n");
1135                 return -1;
1136         }
1137
1138         return roc_cfg.status;
1139 }
1140
1141 int
1142 mwifiex_set_bss_role(struct mwifiex_private *priv, u8 bss_role)
1143 {
1144         if (GET_BSS_ROLE(priv) == bss_role) {
1145                 dev_dbg(priv->adapter->dev,
1146                         "info: already in the desired role.\n");
1147                 return 0;
1148         }
1149
1150         mwifiex_free_priv(priv);
1151         mwifiex_init_priv(priv);
1152
1153         priv->bss_role = bss_role;
1154         switch (bss_role) {
1155         case MWIFIEX_BSS_ROLE_UAP:
1156                 priv->bss_mode = NL80211_IFTYPE_AP;
1157                 break;
1158         case MWIFIEX_BSS_ROLE_STA:
1159         case MWIFIEX_BSS_ROLE_ANY:
1160         default:
1161                 priv->bss_mode = NL80211_IFTYPE_STATION;
1162                 break;
1163         }
1164
1165         mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1166                          HostCmd_ACT_GEN_SET, 0, NULL, true);
1167
1168         return mwifiex_sta_init_cmd(priv, false);
1169 }
1170
1171 /*
1172  * Sends IOCTL request to get statistics information.
1173  *
1174  * This function allocates the IOCTL request buffer, fills it
1175  * with requisite parameters and calls the IOCTL handler.
1176  */
1177 int
1178 mwifiex_get_stats_info(struct mwifiex_private *priv,
1179                        struct mwifiex_ds_get_stats *log)
1180 {
1181         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_GET_LOG,
1182                                 HostCmd_ACT_GEN_GET, 0, log, true);
1183 }
1184
1185 /*
1186  * IOCTL request handler to read/write register.
1187  *
1188  * This function prepares the correct firmware command and
1189  * issues it.
1190  *
1191  * Access to the following registers are supported -
1192  *      - MAC
1193  *      - BBP
1194  *      - RF
1195  *      - PMIC
1196  *      - CAU
1197  */
1198 static int mwifiex_reg_mem_ioctl_reg_rw(struct mwifiex_private *priv,
1199                                         struct mwifiex_ds_reg_rw *reg_rw,
1200                                         u16 action)
1201 {
1202         u16 cmd_no;
1203
1204         switch (le32_to_cpu(reg_rw->type)) {
1205         case MWIFIEX_REG_MAC:
1206                 cmd_no = HostCmd_CMD_MAC_REG_ACCESS;
1207                 break;
1208         case MWIFIEX_REG_BBP:
1209                 cmd_no = HostCmd_CMD_BBP_REG_ACCESS;
1210                 break;
1211         case MWIFIEX_REG_RF:
1212                 cmd_no = HostCmd_CMD_RF_REG_ACCESS;
1213                 break;
1214         case MWIFIEX_REG_PMIC:
1215                 cmd_no = HostCmd_CMD_PMIC_REG_ACCESS;
1216                 break;
1217         case MWIFIEX_REG_CAU:
1218                 cmd_no = HostCmd_CMD_CAU_REG_ACCESS;
1219                 break;
1220         default:
1221                 return -1;
1222         }
1223
1224         return mwifiex_send_cmd(priv, cmd_no, action, 0, reg_rw, true);
1225 }
1226
1227 /*
1228  * Sends IOCTL request to write to a register.
1229  *
1230  * This function allocates the IOCTL request buffer, fills it
1231  * with requisite parameters and calls the IOCTL handler.
1232  */
1233 int
1234 mwifiex_reg_write(struct mwifiex_private *priv, u32 reg_type,
1235                   u32 reg_offset, u32 reg_value)
1236 {
1237         struct mwifiex_ds_reg_rw reg_rw;
1238
1239         reg_rw.type = cpu_to_le32(reg_type);
1240         reg_rw.offset = cpu_to_le32(reg_offset);
1241         reg_rw.value = cpu_to_le32(reg_value);
1242
1243         return mwifiex_reg_mem_ioctl_reg_rw(priv, &reg_rw, HostCmd_ACT_GEN_SET);
1244 }
1245
1246 /*
1247  * Sends IOCTL request to read from a register.
1248  *
1249  * This function allocates the IOCTL request buffer, fills it
1250  * with requisite parameters and calls the IOCTL handler.
1251  */
1252 int
1253 mwifiex_reg_read(struct mwifiex_private *priv, u32 reg_type,
1254                  u32 reg_offset, u32 *value)
1255 {
1256         int ret;
1257         struct mwifiex_ds_reg_rw reg_rw;
1258
1259         reg_rw.type = cpu_to_le32(reg_type);
1260         reg_rw.offset = cpu_to_le32(reg_offset);
1261         ret = mwifiex_reg_mem_ioctl_reg_rw(priv, &reg_rw, HostCmd_ACT_GEN_GET);
1262
1263         if (ret)
1264                 goto done;
1265
1266         *value = le32_to_cpu(reg_rw.value);
1267
1268 done:
1269         return ret;
1270 }
1271
1272 /*
1273  * Sends IOCTL request to read from EEPROM.
1274  *
1275  * This function allocates the IOCTL request buffer, fills it
1276  * with requisite parameters and calls the IOCTL handler.
1277  */
1278 int
1279 mwifiex_eeprom_read(struct mwifiex_private *priv, u16 offset, u16 bytes,
1280                     u8 *value)
1281 {
1282         int ret;
1283         struct mwifiex_ds_read_eeprom rd_eeprom;
1284
1285         rd_eeprom.offset = cpu_to_le16((u16) offset);
1286         rd_eeprom.byte_count = cpu_to_le16((u16) bytes);
1287
1288         /* Send request to firmware */
1289         ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_EEPROM_ACCESS,
1290                                HostCmd_ACT_GEN_GET, 0, &rd_eeprom, true);
1291
1292         if (!ret)
1293                 memcpy(value, rd_eeprom.value, MAX_EEPROM_DATA);
1294         return ret;
1295 }
1296
1297 /*
1298  * This function sets a generic IE. In addition to generic IE, it can
1299  * also handle WPA, WPA2 and WAPI IEs.
1300  */
1301 static int
1302 mwifiex_set_gen_ie_helper(struct mwifiex_private *priv, u8 *ie_data_ptr,
1303                           u16 ie_len)
1304 {
1305         int ret = 0;
1306         struct ieee_types_vendor_header *pvendor_ie;
1307         const u8 wpa_oui[] = { 0x00, 0x50, 0xf2, 0x01 };
1308         const u8 wps_oui[] = { 0x00, 0x50, 0xf2, 0x04 };
1309
1310         /* If the passed length is zero, reset the buffer */
1311         if (!ie_len) {
1312                 priv->gen_ie_buf_len = 0;
1313                 priv->wps.session_enable = false;
1314
1315                 return 0;
1316         } else if (!ie_data_ptr) {
1317                 return -1;
1318         }
1319         pvendor_ie = (struct ieee_types_vendor_header *) ie_data_ptr;
1320         /* Test to see if it is a WPA IE, if not, then it is a gen IE */
1321         if (((pvendor_ie->element_id == WLAN_EID_VENDOR_SPECIFIC) &&
1322              (!memcmp(pvendor_ie->oui, wpa_oui, sizeof(wpa_oui)))) ||
1323             (pvendor_ie->element_id == WLAN_EID_RSN)) {
1324
1325                 /* IE is a WPA/WPA2 IE so call set_wpa function */
1326                 ret = mwifiex_set_wpa_ie_helper(priv, ie_data_ptr, ie_len);
1327                 priv->wps.session_enable = false;
1328
1329                 return ret;
1330         } else if (pvendor_ie->element_id == WLAN_EID_BSS_AC_ACCESS_DELAY) {
1331                 /* IE is a WAPI IE so call set_wapi function */
1332                 ret = mwifiex_set_wapi_ie(priv, ie_data_ptr, ie_len);
1333
1334                 return ret;
1335         }
1336         /*
1337          * Verify that the passed length is not larger than the
1338          * available space remaining in the buffer
1339          */
1340         if (ie_len < (sizeof(priv->gen_ie_buf) - priv->gen_ie_buf_len)) {
1341
1342                 /* Test to see if it is a WPS IE, if so, enable
1343                  * wps session flag
1344                  */
1345                 pvendor_ie = (struct ieee_types_vendor_header *) ie_data_ptr;
1346                 if ((pvendor_ie->element_id == WLAN_EID_VENDOR_SPECIFIC) &&
1347                     (!memcmp(pvendor_ie->oui, wps_oui, sizeof(wps_oui)))) {
1348                         priv->wps.session_enable = true;
1349                         dev_dbg(priv->adapter->dev,
1350                                 "info: WPS Session Enabled.\n");
1351                         ret = mwifiex_set_wps_ie(priv, ie_data_ptr, ie_len);
1352                 }
1353
1354                 /* Append the passed data to the end of the
1355                    genIeBuffer */
1356                 memcpy(priv->gen_ie_buf + priv->gen_ie_buf_len, ie_data_ptr,
1357                        ie_len);
1358                 /* Increment the stored buffer length by the
1359                    size passed */
1360                 priv->gen_ie_buf_len += ie_len;
1361         } else {
1362                 /* Passed data does not fit in the remaining
1363                    buffer space */
1364                 ret = -1;
1365         }
1366
1367         /* Return 0, or -1 for error case */
1368         return ret;
1369 }
1370
1371 /*
1372  * IOCTL request handler to set/get generic IE.
1373  *
1374  * In addition to various generic IEs, this function can also be
1375  * used to set the ARP filter.
1376  */
1377 static int mwifiex_misc_ioctl_gen_ie(struct mwifiex_private *priv,
1378                                      struct mwifiex_ds_misc_gen_ie *gen_ie,
1379                                      u16 action)
1380 {
1381         struct mwifiex_adapter *adapter = priv->adapter;
1382
1383         switch (gen_ie->type) {
1384         case MWIFIEX_IE_TYPE_GEN_IE:
1385                 if (action == HostCmd_ACT_GEN_GET) {
1386                         gen_ie->len = priv->wpa_ie_len;
1387                         memcpy(gen_ie->ie_data, priv->wpa_ie, gen_ie->len);
1388                 } else {
1389                         mwifiex_set_gen_ie_helper(priv, gen_ie->ie_data,
1390                                                   (u16) gen_ie->len);
1391                 }
1392                 break;
1393         case MWIFIEX_IE_TYPE_ARP_FILTER:
1394                 memset(adapter->arp_filter, 0, sizeof(adapter->arp_filter));
1395                 if (gen_ie->len > ARP_FILTER_MAX_BUF_SIZE) {
1396                         adapter->arp_filter_size = 0;
1397                         dev_err(adapter->dev, "invalid ARP filter size\n");
1398                         return -1;
1399                 } else {
1400                         memcpy(adapter->arp_filter, gen_ie->ie_data,
1401                                gen_ie->len);
1402                         adapter->arp_filter_size = gen_ie->len;
1403                 }
1404                 break;
1405         default:
1406                 dev_err(adapter->dev, "invalid IE type\n");
1407                 return -1;
1408         }
1409         return 0;
1410 }
1411
1412 /*
1413  * Sends IOCTL request to set a generic IE.
1414  *
1415  * This function allocates the IOCTL request buffer, fills it
1416  * with requisite parameters and calls the IOCTL handler.
1417  */
1418 int
1419 mwifiex_set_gen_ie(struct mwifiex_private *priv, const u8 *ie, int ie_len)
1420 {
1421         struct mwifiex_ds_misc_gen_ie gen_ie;
1422
1423         if (ie_len > IEEE_MAX_IE_SIZE)
1424                 return -EFAULT;
1425
1426         gen_ie.type = MWIFIEX_IE_TYPE_GEN_IE;
1427         gen_ie.len = ie_len;
1428         memcpy(gen_ie.ie_data, ie, ie_len);
1429         if (mwifiex_misc_ioctl_gen_ie(priv, &gen_ie, HostCmd_ACT_GEN_SET))
1430                 return -EFAULT;
1431
1432         return 0;
1433 }