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