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 {
  59         int status;
  60         struct cmd_ctrl_node *cmd_queued;
  61
  62         if (!adapter->cmd_queued)
  63                 return 0;
  64
  65         cmd_queued = adapter->cmd_queued;
  66         adapter->cmd_queued = NULL;
  67
  68         dev_dbg(adapter->dev, "cmd pending\n");
  69         atomic_inc(&adapter->cmd_pending);
  70
  71         /* Wait for completion */
  72         status = wait_event_interruptible(adapter->cmd_wait_q.wait,
  73                                           *(cmd_queued->condition));
  74         if (status) {
  75                 dev_err(adapter->dev, "cmd_wait_q terminated: %d\n", status);
  76                 return status;
  77         }
  78
  79         status = adapter->cmd_wait_q.status;
  80         adapter->cmd_wait_q.status = 0;
  81
  82         return status;
  83 }
  84
  85 /*
  86  * This function prepares the correct firmware command and
  87  * issues it to set the multicast list.
  88  *
  89  * This function can be used to enable promiscuous mode, or enable all
  90  * multicast packets, or to enable selective multicast.
  91  */
  92 int mwifiex_request_set_multicast_list(struct mwifiex_private *priv,
  93                                 struct mwifiex_multicast_list *mcast_list)
  94 {
  95         int ret = 0;
  96         u16 old_pkt_filter;
  97
  98         old_pkt_filter = priv->curr_pkt_filter;
  99
 100         if (mcast_list->mode == MWIFIEX_PROMISC_MODE) {
 101                 dev_dbg(priv->adapter->dev, "info: Enable Promiscuous mode\n");
 102                 priv->curr_pkt_filter |= HostCmd_ACT_MAC_PROMISCUOUS_ENABLE;
 103                 priv->curr_pkt_filter &=
 104                         ~HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE;
 105         } else {
 106                 /* Multicast */
 107                 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_PROMISCUOUS_ENABLE;
 108                 if (mcast_list->mode == MWIFIEX_MULTICAST_MODE) {
 109                         dev_dbg(priv->adapter->dev,
 110                                 "info: Enabling All Multicast!\n");
 111                         priv->curr_pkt_filter |=
 112                                 HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE;
 113                 } else {
 114                         priv->curr_pkt_filter &=
 115                                 ~HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE;
 116                         if (mcast_list->num_multicast_addr) {
 117                                 dev_dbg(priv->adapter->dev,
 118                                         "info: Set multicast list=%d\n",
 119                                        mcast_list->num_multicast_addr);
 120                                 /* Set multicast addresses to firmware */
 121                                 if (old_pkt_filter == priv->curr_pkt_filter) {
 122                                         /* Send request to firmware */
 123                                         ret = mwifiex_send_cmd_async(priv,
 124                                                 HostCmd_CMD_MAC_MULTICAST_ADR,
 125                                                 HostCmd_ACT_GEN_SET, 0,
 126                                                 mcast_list);
 127                                 } else {
 128                                         /* Send request to firmware */
 129                                         ret = mwifiex_send_cmd_async(priv,
 130                                                 HostCmd_CMD_MAC_MULTICAST_ADR,
 131                                                 HostCmd_ACT_GEN_SET, 0,
 132                                                 mcast_list);
 133                                 }
 134                         }
 135                 }
 136         }
 137         dev_dbg(priv->adapter->dev,
 138                 "info: old_pkt_filter=%#x, curr_pkt_filter=%#x\n",
 139                old_pkt_filter, priv->curr_pkt_filter);
 140         if (old_pkt_filter != priv->curr_pkt_filter) {
 141                 ret = mwifiex_send_cmd_async(priv, HostCmd_CMD_MAC_CONTROL,
 142                                              HostCmd_ACT_GEN_SET,
 143                                              0, &priv->curr_pkt_filter);
 144         }
 145
 146         return ret;
 147 }
 148
 149 /*
 150  * This function fills bss descriptor structure using provided
 151  * information.
 152  */
 153 int mwifiex_fill_new_bss_desc(struct mwifiex_private *priv,
 154                               struct cfg80211_bss *bss,
 155                               struct mwifiex_bssdescriptor *bss_desc)
 156 {
 157         int ret;
 158         u8 *beacon_ie;
 159         size_t beacon_ie_len;
 160         struct mwifiex_bss_priv *bss_priv = (void *)bss->priv;
 161         const struct cfg80211_bss_ies *ies;
 162
 163         rcu_read_lock();
 164         ies = rcu_dereference(bss->ies);
 165         if (WARN_ON(!ies)) {
 166                 /* should never happen */
 167                 rcu_read_unlock();
 168                 return -EINVAL;
 169         }
 170         beacon_ie = kmemdup(ies->data, ies->len, GFP_ATOMIC);
 171         beacon_ie_len = ies->len;
 172         rcu_read_unlock();
 173
 174         if (!beacon_ie) {
 175                 dev_err(priv->adapter->dev, " failed to alloc beacon_ie\n");
 176                 return -ENOMEM;
 177         }
 178
 179         memcpy(bss_desc->mac_address, bss->bssid, ETH_ALEN);
 180         bss_desc->rssi = bss->signal;
 181         bss_desc->beacon_buf = beacon_ie;
 182         bss_desc->beacon_buf_size = beacon_ie_len;
 183         bss_desc->beacon_period = bss->beacon_interval;
 184         bss_desc->cap_info_bitmap = bss->capability;
 185         bss_desc->bss_band = bss_priv->band;
 186         bss_desc->fw_tsf = bss_priv->fw_tsf;
 187         bss_desc->timestamp = bss->tsf;
 188         if (bss_desc->cap_info_bitmap & WLAN_CAPABILITY_PRIVACY) {
 189                 dev_dbg(priv->adapter->dev, "info: InterpretIE: AP WEP enabled\n");
 190                 bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_8021X_WEP;
 191         } else {
 192                 bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_ACCEPT_ALL;
 193         }
 194         if (bss_desc->cap_info_bitmap & WLAN_CAPABILITY_IBSS)
 195                 bss_desc->bss_mode = NL80211_IFTYPE_ADHOC;
 196         else
 197                 bss_desc->bss_mode = NL80211_IFTYPE_STATION;
 198
 199         ret = mwifiex_update_bss_desc_with_ie(priv->adapter, bss_desc);
 200
 201         kfree(beacon_ie);
 202         return ret;
 203 }
 204
 205 static int mwifiex_process_country_ie(struct mwifiex_private *priv,
 206                                       struct cfg80211_bss *bss)
 207 {
 208         const u8 *country_ie;
 209         u8 country_ie_len;
 210         struct mwifiex_802_11d_domain_reg *domain_info =
 211                                         &priv->adapter->domain_reg;
 212
 213         rcu_read_lock();
 214         country_ie = ieee80211_bss_get_ie(bss, WLAN_EID_COUNTRY);
 215         if (!country_ie) {
 216                 rcu_read_unlock();
 217                 return 0;
 218         }
 219
 220         country_ie_len = country_ie[1];
 221         if (country_ie_len < IEEE80211_COUNTRY_IE_MIN_LEN) {
 222                 rcu_read_unlock();
 223                 return 0;
 224         }
 225
 226         domain_info->country_code[0] = country_ie[2];
 227         domain_info->country_code[1] = country_ie[3];
 228         domain_info->country_code[2] = ' ';
 229
 230         country_ie_len -= IEEE80211_COUNTRY_STRING_LEN;
 231
 232         domain_info->no_of_triplet =
 233                 country_ie_len / sizeof(struct ieee80211_country_ie_triplet);
 234
 235         memcpy((u8 *)domain_info->triplet,
 236                &country_ie[2] + IEEE80211_COUNTRY_STRING_LEN, country_ie_len);
 237
 238         rcu_read_unlock();
 239
 240         if (mwifiex_send_cmd_async(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
 241                                    HostCmd_ACT_GEN_SET, 0, NULL)) {
 242                 wiphy_err(priv->adapter->wiphy,
 243                           "11D: setting domain info in FW\n");
 244                 return -1;
 245         }
 246
 247         return 0;
 248 }
 249
 250 /*
 251  * In Ad-Hoc mode, the IBSS is created if not found in scan list.
 252  * In both Ad-Hoc and infra mode, an deauthentication is performed
 253  * first.
 254  */
 255 int mwifiex_bss_start(struct mwifiex_private *priv, struct cfg80211_bss *bss,
 256                       struct cfg80211_ssid *req_ssid)
 257 {
 258         int ret;
 259         struct mwifiex_adapter *adapter = priv->adapter;
 260         struct mwifiex_bssdescriptor *bss_desc = NULL;
 261
 262         priv->scan_block = false;
 263
 264         if (bss) {
 265                 mwifiex_process_country_ie(priv, bss);
 266
 267                 /* Allocate and fill new bss descriptor */
 268                 bss_desc = kzalloc(sizeof(struct mwifiex_bssdescriptor),
 269                                 GFP_KERNEL);
 270                 if (!bss_desc) {
 271                         dev_err(priv->adapter->dev, " failed to alloc bss_desc\n");
 272                         return -ENOMEM;
 273                 }
 274
 275                 ret = mwifiex_fill_new_bss_desc(priv, bss, bss_desc);
 276                 if (ret)
 277                         goto done;
 278         }
 279
 280         if (priv->bss_mode == NL80211_IFTYPE_STATION) {
 281                 /* Infra mode */
 282                 ret = mwifiex_deauthenticate(priv, NULL);
 283                 if (ret)
 284                         goto done;
 285
 286                 if (bss_desc) {
 287                         u8 config_bands = 0;
 288
 289                         if (mwifiex_band_to_radio_type((u8) bss_desc->bss_band)
 290                             == HostCmd_SCAN_RADIO_TYPE_BG)
 291                                 config_bands = BAND_B | BAND_G | BAND_GN;
 292                         else
 293                                 config_bands = BAND_A | BAND_AN;
 294
 295                         if (!((config_bands | adapter->fw_bands) &
 296                               ~adapter->fw_bands))
 297                                 adapter->config_bands = config_bands;
 298                 }
 299
 300                 ret = mwifiex_check_network_compatibility(priv, bss_desc);
 301                 if (ret)
 302                         goto done;
 303
 304                 dev_dbg(adapter->dev, "info: SSID found in scan list ... "
 305                                       "associating...\n");
 306
 307                 mwifiex_stop_net_dev_queue(priv->netdev, adapter);
 308                 if (netif_carrier_ok(priv->netdev))
 309                         netif_carrier_off(priv->netdev);
 310
 311                 /* Clear any past association response stored for
 312                  * application retrieval */
 313                 priv->assoc_rsp_size = 0;
 314                 ret = mwifiex_associate(priv, bss_desc);
 315
 316                 /* If auth type is auto and association fails using open mode,
 317                  * try to connect using shared mode */
 318                 if (ret == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG &&
 319                     priv->sec_info.is_authtype_auto &&
 320                     priv->sec_info.wep_enabled) {
 321                         priv->sec_info.authentication_mode =
 322                                                 NL80211_AUTHTYPE_SHARED_KEY;
 323                         ret = mwifiex_associate(priv, bss_desc);
 324                 }
 325
 326                 if (bss)
 327                         cfg80211_put_bss(bss);
 328         } else {
 329                 /* Adhoc mode */
 330                 /* If the requested SSID matches current SSID, return */
 331                 if (bss_desc && bss_desc->ssid.ssid_len &&
 332                     (!mwifiex_ssid_cmp(&priv->curr_bss_params.bss_descriptor.
 333                                        ssid, &bss_desc->ssid))) {
 334                         kfree(bss_desc);
 335                         return 0;
 336                 }
 337
 338                 /* Exit Adhoc mode first */
 339                 dev_dbg(adapter->dev, "info: Sending Adhoc Stop\n");
 340                 ret = mwifiex_deauthenticate(priv, NULL);
 341                 if (ret)
 342                         goto done;
 343
 344                 priv->adhoc_is_link_sensed = false;
 345
 346                 ret = mwifiex_check_network_compatibility(priv, bss_desc);
 347
 348                 mwifiex_stop_net_dev_queue(priv->netdev, adapter);
 349                 if (netif_carrier_ok(priv->netdev))
 350                         netif_carrier_off(priv->netdev);
 351
 352                 if (!ret) {
 353                         dev_dbg(adapter->dev, "info: network found in scan"
 354                                                         " list. Joining...\n");
 355                         ret = mwifiex_adhoc_join(priv, bss_desc);
 356                         if (bss)
 357                                 cfg80211_put_bss(bss);
 358                 } else {
 359                         dev_dbg(adapter->dev, "info: Network not found in "
 360                                 "the list, creating adhoc with ssid = %s\n",
 361                                 req_ssid->ssid);
 362                         ret = mwifiex_adhoc_start(priv, req_ssid);
 363                 }
 364         }
 365
 366 done:
 367         kfree(bss_desc);
 368         return ret;
 369 }
 370
 371 /*
 372  * IOCTL request handler to set host sleep configuration.
 373  *
 374  * This function prepares the correct firmware command and
 375  * issues it.
 376  */
 377 static int mwifiex_set_hs_params(struct mwifiex_private *priv, u16 action,
 378                                  int cmd_type, struct mwifiex_ds_hs_cfg *hs_cfg)
 379
 380 {
 381         struct mwifiex_adapter *adapter = priv->adapter;
 382         int status = 0;
 383         u32 prev_cond = 0;
 384
 385         if (!hs_cfg)
 386                 return -ENOMEM;
 387
 388         switch (action) {
 389         case HostCmd_ACT_GEN_SET:
 390                 if (adapter->pps_uapsd_mode) {
 391                         dev_dbg(adapter->dev, "info: Host Sleep IOCTL"
 392                                 " is blocked in UAPSD/PPS mode\n");
 393                         status = -1;
 394                         break;
 395                 }
 396                 if (hs_cfg->is_invoke_hostcmd) {
 397                         if (hs_cfg->conditions == HOST_SLEEP_CFG_CANCEL) {
 398                                 if (!adapter->is_hs_configured)
 399                                         /* Already cancelled */
 400                                         break;
 401                                 /* Save previous condition */
 402                                 prev_cond = le32_to_cpu(adapter->hs_cfg
 403                                                         .conditions);
 404                                 adapter->hs_cfg.conditions =
 405                                                 cpu_to_le32(hs_cfg->conditions);
 406                         } else if (hs_cfg->conditions) {
 407                                 adapter->hs_cfg.conditions =
 408                                                 cpu_to_le32(hs_cfg->conditions);
 409                                 adapter->hs_cfg.gpio = (u8)hs_cfg->gpio;
 410                                 if (hs_cfg->gap)
 411                                         adapter->hs_cfg.gap = (u8)hs_cfg->gap;
 412                         } else if (adapter->hs_cfg.conditions
 413                                    == cpu_to_le32(HOST_SLEEP_CFG_CANCEL)) {
 414                                 /* Return failure if no parameters for HS
 415                                    enable */
 416                                 status = -1;
 417                                 break;
 418                         }
 419                         if (cmd_type == MWIFIEX_SYNC_CMD)
 420                                 status = mwifiex_send_cmd_sync(priv,
 421                                                 HostCmd_CMD_802_11_HS_CFG_ENH,
 422                                                 HostCmd_ACT_GEN_SET, 0,
 423                                                 &adapter->hs_cfg);
 424                         else
 425                                 status = mwifiex_send_cmd_async(priv,
 426                                                 HostCmd_CMD_802_11_HS_CFG_ENH,
 427                                                 HostCmd_ACT_GEN_SET, 0,
 428                                                 &adapter->hs_cfg);
 429                         if (hs_cfg->conditions == HOST_SLEEP_CFG_CANCEL)
 430                                 /* Restore previous condition */
 431                                 adapter->hs_cfg.conditions =
 432                                                 cpu_to_le32(prev_cond);
 433                 } else {
 434                         adapter->hs_cfg.conditions =
 435                                                 cpu_to_le32(hs_cfg->conditions);
 436                         adapter->hs_cfg.gpio = (u8)hs_cfg->gpio;
 437                         adapter->hs_cfg.gap = (u8)hs_cfg->gap;
 438                 }
 439                 break;
 440         case HostCmd_ACT_GEN_GET:
 441                 hs_cfg->conditions = le32_to_cpu(adapter->hs_cfg.conditions);
 442                 hs_cfg->gpio = adapter->hs_cfg.gpio;
 443                 hs_cfg->gap = adapter->hs_cfg.gap;
 444                 break;
 445         default:
 446                 status = -1;
 447                 break;
 448         }
 449
 450         return status;
 451 }
 452
 453 /*
 454  * Sends IOCTL request to cancel the existing Host Sleep configuration.
 455  *
 456  * This function allocates the IOCTL request buffer, fills it
 457  * with requisite parameters and calls the IOCTL handler.
 458  */
 459 int mwifiex_cancel_hs(struct mwifiex_private *priv, int cmd_type)
 460 {
 461         struct mwifiex_ds_hs_cfg hscfg;
 462
 463         hscfg.conditions = HOST_SLEEP_CFG_CANCEL;
 464         hscfg.is_invoke_hostcmd = true;
 465
 466         return mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_SET,
 467                                     cmd_type, &hscfg);
 468 }
 469 EXPORT_SYMBOL_GPL(mwifiex_cancel_hs);
 470
 471 /*
 472  * Sends IOCTL request to cancel the existing Host Sleep configuration.
 473  *
 474  * This function allocates the IOCTL request buffer, fills it
 475  * with requisite parameters and calls the IOCTL handler.
 476  */
 477 int mwifiex_enable_hs(struct mwifiex_adapter *adapter)
 478 {
 479         struct mwifiex_ds_hs_cfg hscfg;
 480         struct mwifiex_private *priv;
 481         int i;
 482
 483         if (disconnect_on_suspend) {
 484                 for (i = 0; i < adapter->priv_num; i++) {
 485                         priv = adapter->priv[i];
 486                         if (priv)
 487                                 mwifiex_deauthenticate(priv, NULL);
 488                 }
 489         }
 490
 491         if (adapter->hs_activated) {
 492                 dev_dbg(adapter->dev, "cmd: HS Already activated\n");
 493                 return true;
 494         }
 495
 496         adapter->hs_activate_wait_q_woken = false;
 497
 498         memset(&hscfg, 0, sizeof(struct mwifiex_ds_hs_cfg));
 499         hscfg.is_invoke_hostcmd = true;
 500
 501         if (mwifiex_set_hs_params(mwifiex_get_priv(adapter,
 502                                                    MWIFIEX_BSS_ROLE_STA),
 503                                   HostCmd_ACT_GEN_SET, MWIFIEX_SYNC_CMD,
 504                                   &hscfg)) {
 505                 dev_err(adapter->dev, "IOCTL request HS enable failed\n");
 506                 return false;
 507         }
 508
 509         if (wait_event_interruptible(adapter->hs_activate_wait_q,
 510                                      adapter->hs_activate_wait_q_woken)) {
 511                 dev_err(adapter->dev, "hs_activate_wait_q terminated\n");
 512                 return false;
 513         }
 514
 515         return true;
 516 }
 517 EXPORT_SYMBOL_GPL(mwifiex_enable_hs);
 518
 519 /*
 520  * IOCTL request handler to get BSS information.
 521  *
 522  * This function collates the information from different driver structures
 523  * to send to the user.
 524  */
 525 int mwifiex_get_bss_info(struct mwifiex_private *priv,
 526                          struct mwifiex_bss_info *info)
 527 {
 528         struct mwifiex_adapter *adapter = priv->adapter;
 529         struct mwifiex_bssdescriptor *bss_desc;
 530
 531         if (!info)
 532                 return -1;
 533
 534         bss_desc = &priv->curr_bss_params.bss_descriptor;
 535
 536         info->bss_mode = priv->bss_mode;
 537
 538         memcpy(&info->ssid, &bss_desc->ssid, sizeof(struct cfg80211_ssid));
 539
 540         memcpy(&info->bssid, &bss_desc->mac_address, ETH_ALEN);
 541
 542         info->bss_chan = bss_desc->channel;
 543
 544         memcpy(info->country_code, adapter->country_code,
 545                IEEE80211_COUNTRY_STRING_LEN);
 546
 547         info->media_connected = priv->media_connected;
 548
 549         info->max_power_level = priv->max_tx_power_level;
 550         info->min_power_level = priv->min_tx_power_level;
 551
 552         info->adhoc_state = priv->adhoc_state;
 553
 554         info->bcn_nf_last = priv->bcn_nf_last;
 555
 556         if (priv->sec_info.wep_enabled)
 557                 info->wep_status = true;
 558         else
 559                 info->wep_status = false;
 560
 561         info->is_hs_configured = adapter->is_hs_configured;
 562         info->is_deep_sleep = adapter->is_deep_sleep;
 563
 564         return 0;
 565 }
 566
 567 /*
 568  * The function disables auto deep sleep mode.
 569  */
 570 int mwifiex_disable_auto_ds(struct mwifiex_private *priv)
 571 {
 572         struct mwifiex_ds_auto_ds auto_ds;
 573
 574         auto_ds.auto_ds = DEEP_SLEEP_OFF;
 575
 576         return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_PS_MODE_ENH,
 577                                      DIS_AUTO_PS, BITMAP_AUTO_DS, &auto_ds);
 578 }
 579 EXPORT_SYMBOL_GPL(mwifiex_disable_auto_ds);
 580
 581 /*
 582  * Sends IOCTL request to get the data rate.
 583  *
 584  * This function allocates the IOCTL request buffer, fills it
 585  * with requisite parameters and calls the IOCTL handler.
 586  */
 587 int mwifiex_drv_get_data_rate(struct mwifiex_private *priv, u32 *rate)
 588 {
 589         int ret;
 590
 591         ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_TX_RATE_QUERY,
 592                                     HostCmd_ACT_GEN_GET, 0, NULL);
 593
 594         if (!ret) {
 595                 if (priv->is_data_rate_auto)
 596                         *rate = mwifiex_index_to_data_rate(priv, priv->tx_rate,
 597                                                            priv->tx_htinfo);
 598                 else
 599                         *rate = priv->data_rate;
 600         }
 601
 602         return ret;
 603 }
 604
 605 /*
 606  * IOCTL request handler to set tx power configuration.
 607  *
 608  * This function prepares the correct firmware command and
 609  * issues it.
 610  *
 611  * For non-auto power mode, all the following power groups are set -
 612  *      - Modulation class HR/DSSS
 613  *      - Modulation class OFDM
 614  *      - Modulation class HTBW20
 615  *      - Modulation class HTBW40
 616  */
 617 int mwifiex_set_tx_power(struct mwifiex_private *priv,
 618                          struct mwifiex_power_cfg *power_cfg)
 619 {
 620         int ret;
 621         struct host_cmd_ds_txpwr_cfg *txp_cfg;
 622         struct mwifiex_types_power_group *pg_tlv;
 623         struct mwifiex_power_group *pg;
 624         u8 *buf;
 625         u16 dbm = 0;
 626
 627         if (!power_cfg->is_power_auto) {
 628                 dbm = (u16) power_cfg->power_level;
 629                 if ((dbm < priv->min_tx_power_level) ||
 630                     (dbm > priv->max_tx_power_level)) {
 631                         dev_err(priv->adapter->dev, "txpower value %d dBm"
 632                                 " is out of range (%d dBm-%d dBm)\n",
 633                                 dbm, priv->min_tx_power_level,
 634                                 priv->max_tx_power_level);
 635                         return -1;
 636                 }
 637         }
 638         buf = kzalloc(MWIFIEX_SIZE_OF_CMD_BUFFER, GFP_KERNEL);
 639         if (!buf) {
 640                 dev_err(priv->adapter->dev, "%s: failed to alloc cmd buffer\n",
 641                         __func__);
 642                 return -ENOMEM;
 643         }
 644
 645         txp_cfg = (struct host_cmd_ds_txpwr_cfg *) buf;
 646         txp_cfg->action = cpu_to_le16(HostCmd_ACT_GEN_SET);
 647         if (!power_cfg->is_power_auto) {
 648                 txp_cfg->mode = cpu_to_le32(1);
 649                 pg_tlv = (struct mwifiex_types_power_group *)
 650                          (buf + sizeof(struct host_cmd_ds_txpwr_cfg));
 651                 pg_tlv->type = TLV_TYPE_POWER_GROUP;
 652                 pg_tlv->length = 4 * sizeof(struct mwifiex_power_group);
 653                 pg = (struct mwifiex_power_group *)
 654                      (buf + sizeof(struct host_cmd_ds_txpwr_cfg)
 655                       + sizeof(struct mwifiex_types_power_group));
 656                 /* Power group for modulation class HR/DSSS */
 657                 pg->first_rate_code = 0x00;
 658                 pg->last_rate_code = 0x03;
 659                 pg->modulation_class = MOD_CLASS_HR_DSSS;
 660                 pg->power_step = 0;
 661                 pg->power_min = (s8) dbm;
 662                 pg->power_max = (s8) dbm;
 663                 pg++;
 664                 /* Power group for modulation class OFDM */
 665                 pg->first_rate_code = 0x00;
 666                 pg->last_rate_code = 0x07;
 667                 pg->modulation_class = MOD_CLASS_OFDM;
 668                 pg->power_step = 0;
 669                 pg->power_min = (s8) dbm;
 670                 pg->power_max = (s8) dbm;
 671                 pg++;
 672                 /* Power group for modulation class HTBW20 */
 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_20;
 680                 pg++;
 681                 /* Power group for modulation class HTBW40 */
 682                 pg->first_rate_code = 0x00;
 683                 pg->last_rate_code = 0x20;
 684                 pg->modulation_class = MOD_CLASS_HT;
 685                 pg->power_step = 0;
 686                 pg->power_min = (s8) dbm;
 687                 pg->power_max = (s8) dbm;
 688                 pg->ht_bandwidth = HT_BW_40;
 689         }
 690         ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_TXPWR_CFG,
 691                                     HostCmd_ACT_GEN_SET, 0, buf);
 692
 693         kfree(buf);
 694         return ret;
 695 }
 696
 697 /*
 698  * IOCTL request handler to get power save mode.
 699  *
 700  * This function prepares the correct firmware command and
 701  * issues it.
 702  */
 703 int mwifiex_drv_set_power(struct mwifiex_private *priv, u32 *ps_mode)
 704 {
 705         int ret;
 706         struct mwifiex_adapter *adapter = priv->adapter;
 707         u16 sub_cmd;
 708
 709         if (*ps_mode)
 710                 adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_PSP;
 711         else
 712                 adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_CAM;
 713         sub_cmd = (*ps_mode) ? EN_AUTO_PS : DIS_AUTO_PS;
 714         ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_PS_MODE_ENH,
 715                                     sub_cmd, BITMAP_STA_PS, NULL);
 716         if ((!ret) && (sub_cmd == DIS_AUTO_PS))
 717                 ret = mwifiex_send_cmd_async(priv,
 718                                              HostCmd_CMD_802_11_PS_MODE_ENH,
 719                                              GET_PS, 0, NULL);
 720
 721         return ret;
 722 }
 723
 724 /*
 725  * IOCTL request handler to set/reset WPA IE.
 726  *
 727  * The supplied WPA IE is treated as a opaque buffer. Only the first field
 728  * is checked to determine WPA version. If buffer length is zero, the existing
 729  * WPA IE is reset.
 730  */
 731 static int mwifiex_set_wpa_ie_helper(struct mwifiex_private *priv,
 732                                      u8 *ie_data_ptr, u16 ie_len)
 733 {
 734         if (ie_len) {
 735                 if (ie_len > sizeof(priv->wpa_ie)) {
 736                         dev_err(priv->adapter->dev,
 737                                 "failed to copy WPA IE, too big\n");
 738                         return -1;
 739                 }
 740                 memcpy(priv->wpa_ie, ie_data_ptr, ie_len);
 741                 priv->wpa_ie_len = (u8) ie_len;
 742                 dev_dbg(priv->adapter->dev, "cmd: Set Wpa_ie_len=%d IE=%#x\n",
 743                         priv->wpa_ie_len, priv->wpa_ie[0]);
 744
 745                 if (priv->wpa_ie[0] == WLAN_EID_VENDOR_SPECIFIC) {
 746                         priv->sec_info.wpa_enabled = true;
 747                 } else if (priv->wpa_ie[0] == WLAN_EID_RSN) {
 748                         priv->sec_info.wpa2_enabled = true;
 749                 } else {
 750                         priv->sec_info.wpa_enabled = false;
 751                         priv->sec_info.wpa2_enabled = false;
 752                 }
 753         } else {
 754                 memset(priv->wpa_ie, 0, sizeof(priv->wpa_ie));
 755                 priv->wpa_ie_len = 0;
 756                 dev_dbg(priv->adapter->dev, "info: reset wpa_ie_len=%d IE=%#x\n",
 757                         priv->wpa_ie_len, priv->wpa_ie[0]);
 758                 priv->sec_info.wpa_enabled = false;
 759                 priv->sec_info.wpa2_enabled = false;
 760         }
 761
 762         return 0;
 763 }
 764
 765 /*
 766  * IOCTL request handler to set/reset WAPI IE.
 767  *
 768  * The supplied WAPI IE is treated as a opaque buffer. Only the first field
 769  * is checked to internally enable WAPI. If buffer length is zero, the existing
 770  * WAPI IE is reset.
 771  */
 772 static int mwifiex_set_wapi_ie(struct mwifiex_private *priv,
 773                                u8 *ie_data_ptr, u16 ie_len)
 774 {
 775         if (ie_len) {
 776                 if (ie_len > sizeof(priv->wapi_ie)) {
 777                         dev_dbg(priv->adapter->dev,
 778                                 "info: failed to copy WAPI IE, too big\n");
 779                         return -1;
 780                 }
 781                 memcpy(priv->wapi_ie, ie_data_ptr, ie_len);
 782                 priv->wapi_ie_len = ie_len;
 783                 dev_dbg(priv->adapter->dev, "cmd: Set wapi_ie_len=%d IE=%#x\n",
 784                         priv->wapi_ie_len, priv->wapi_ie[0]);
 785
 786                 if (priv->wapi_ie[0] == WLAN_EID_BSS_AC_ACCESS_DELAY)
 787                         priv->sec_info.wapi_enabled = true;
 788         } else {
 789                 memset(priv->wapi_ie, 0, sizeof(priv->wapi_ie));
 790                 priv->wapi_ie_len = ie_len;
 791                 dev_dbg(priv->adapter->dev,
 792                         "info: Reset wapi_ie_len=%d IE=%#x\n",
 793                        priv->wapi_ie_len, priv->wapi_ie[0]);
 794                 priv->sec_info.wapi_enabled = false;
 795         }
 796         return 0;
 797 }
 798
 799 /*
 800  * IOCTL request handler to set/reset WPS IE.
 801  *
 802  * The supplied WPS IE is treated as a opaque buffer. Only the first field
 803  * is checked to internally enable WPS. If buffer length is zero, the existing
 804  * WPS IE is reset.
 805  */
 806 static int mwifiex_set_wps_ie(struct mwifiex_private *priv,
 807                                u8 *ie_data_ptr, u16 ie_len)
 808 {
 809         if (ie_len) {
 810                 priv->wps_ie = kzalloc(MWIFIEX_MAX_VSIE_LEN, GFP_KERNEL);
 811                 if (!priv->wps_ie)
 812                         return -ENOMEM;
 813                 if (ie_len > sizeof(priv->wps_ie)) {
 814                         dev_dbg(priv->adapter->dev,
 815                                 "info: failed to copy WPS IE, too big\n");
 816                         kfree(priv->wps_ie);
 817                         return -1;
 818                 }
 819                 memcpy(priv->wps_ie, ie_data_ptr, ie_len);
 820                 priv->wps_ie_len = ie_len;
 821                 dev_dbg(priv->adapter->dev, "cmd: Set wps_ie_len=%d IE=%#x\n",
 822                         priv->wps_ie_len, priv->wps_ie[0]);
 823         } else {
 824                 kfree(priv->wps_ie);
 825                 priv->wps_ie_len = ie_len;
 826                 dev_dbg(priv->adapter->dev,
 827                         "info: Reset wps_ie_len=%d\n", priv->wps_ie_len);
 828         }
 829         return 0;
 830 }
 831
 832 /*
 833  * IOCTL request handler to set WAPI key.
 834  *
 835  * This function prepares the correct firmware command and
 836  * issues it.
 837  */
 838 static int mwifiex_sec_ioctl_set_wapi_key(struct mwifiex_private *priv,
 839                                struct mwifiex_ds_encrypt_key *encrypt_key)
 840 {
 841
 842         return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
 843                                      HostCmd_ACT_GEN_SET, KEY_INFO_ENABLED,
 844                                      encrypt_key);
 845 }
 846
 847 /*
 848  * IOCTL request handler to set WEP network key.
 849  *
 850  * This function prepares the correct firmware command and
 851  * issues it, after validation checks.
 852  */
 853 static int mwifiex_sec_ioctl_set_wep_key(struct mwifiex_private *priv,
 854                               struct mwifiex_ds_encrypt_key *encrypt_key)
 855 {
 856         int ret;
 857         struct mwifiex_wep_key *wep_key;
 858         int index;
 859
 860         if (priv->wep_key_curr_index >= NUM_WEP_KEYS)
 861                 priv->wep_key_curr_index = 0;
 862         wep_key = &priv->wep_key[priv->wep_key_curr_index];
 863         index = encrypt_key->key_index;
 864         if (encrypt_key->key_disable) {
 865                 priv->sec_info.wep_enabled = 0;
 866         } else if (!encrypt_key->key_len) {
 867                 /* Copy the required key as the current key */
 868                 wep_key = &priv->wep_key[index];
 869                 if (!wep_key->key_length) {
 870                         dev_err(priv->adapter->dev,
 871                                 "key not set, so cannot enable it\n");
 872                         return -1;
 873                 }
 874                 priv->wep_key_curr_index = (u16) index;
 875                 priv->sec_info.wep_enabled = 1;
 876         } else {
 877                 wep_key = &priv->wep_key[index];
 878                 memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
 879                 /* Copy the key in the driver */
 880                 memcpy(wep_key->key_material,
 881                        encrypt_key->key_material,
 882                        encrypt_key->key_len);
 883                 wep_key->key_index = index;
 884                 wep_key->key_length = encrypt_key->key_len;
 885                 priv->sec_info.wep_enabled = 1;
 886         }
 887         if (wep_key->key_length) {
 888                 /* Send request to firmware */
 889                 ret = mwifiex_send_cmd_async(priv,
 890                                              HostCmd_CMD_802_11_KEY_MATERIAL,
 891                                              HostCmd_ACT_GEN_SET, 0, NULL);
 892                 if (ret)
 893                         return ret;
 894         }
 895         if (priv->sec_info.wep_enabled)
 896                 priv->curr_pkt_filter |= HostCmd_ACT_MAC_WEP_ENABLE;
 897         else
 898                 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_WEP_ENABLE;
 899
 900         ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_MAC_CONTROL,
 901                                     HostCmd_ACT_GEN_SET, 0,
 902                                     &priv->curr_pkt_filter);
 903
 904         return ret;
 905 }
 906
 907 /*
 908  * IOCTL request handler to set WPA key.
 909  *
 910  * This function prepares the correct firmware command and
 911  * issues it, after validation checks.
 912  *
 913  * Current driver only supports key length of up to 32 bytes.
 914  *
 915  * This function can also be used to disable a currently set key.
 916  */
 917 static int mwifiex_sec_ioctl_set_wpa_key(struct mwifiex_private *priv,
 918                               struct mwifiex_ds_encrypt_key *encrypt_key)
 919 {
 920         int ret;
 921         u8 remove_key = false;
 922         struct host_cmd_ds_802_11_key_material *ibss_key;
 923
 924         /* Current driver only supports key length of up to 32 bytes */
 925         if (encrypt_key->key_len > WLAN_MAX_KEY_LEN) {
 926                 dev_err(priv->adapter->dev, "key length too long\n");
 927                 return -1;
 928         }
 929
 930         if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
 931                 /*
 932                  * IBSS/WPA-None uses only one key (Group) for both receiving
 933                  * and sending unicast and multicast packets.
 934                  */
 935                 /* Send the key as PTK to firmware */
 936                 encrypt_key->key_index = MWIFIEX_KEY_INDEX_UNICAST;
 937                 ret = mwifiex_send_cmd_async(priv,
 938                                              HostCmd_CMD_802_11_KEY_MATERIAL,
 939                                              HostCmd_ACT_GEN_SET,
 940                                              KEY_INFO_ENABLED, encrypt_key);
 941                 if (ret)
 942                         return ret;
 943
 944                 ibss_key = &priv->aes_key;
 945                 memset(ibss_key, 0,
 946                        sizeof(struct host_cmd_ds_802_11_key_material));
 947                 /* Copy the key in the driver */
 948                 memcpy(ibss_key->key_param_set.key, encrypt_key->key_material,
 949                        encrypt_key->key_len);
 950                 memcpy(&ibss_key->key_param_set.key_len, &encrypt_key->key_len,
 951                        sizeof(ibss_key->key_param_set.key_len));
 952                 ibss_key->key_param_set.key_type_id
 953                         = cpu_to_le16(KEY_TYPE_ID_TKIP);
 954                 ibss_key->key_param_set.key_info = cpu_to_le16(KEY_ENABLED);
 955
 956                 /* Send the key as GTK to firmware */
 957                 encrypt_key->key_index = ~MWIFIEX_KEY_INDEX_UNICAST;
 958         }
 959
 960         if (!encrypt_key->key_index)
 961                 encrypt_key->key_index = MWIFIEX_KEY_INDEX_UNICAST;
 962
 963         if (remove_key)
 964                 ret = mwifiex_send_cmd_sync(priv,
 965                                             HostCmd_CMD_802_11_KEY_MATERIAL,
 966                                             HostCmd_ACT_GEN_SET,
 967                                             !KEY_INFO_ENABLED, encrypt_key);
 968         else
 969                 ret = mwifiex_send_cmd_sync(priv,
 970                                             HostCmd_CMD_802_11_KEY_MATERIAL,
 971                                             HostCmd_ACT_GEN_SET,
 972                                             KEY_INFO_ENABLED, encrypt_key);
 973
 974         return ret;
 975 }
 976
 977 /*
 978  * IOCTL request handler to set/get network keys.
 979  *
 980  * This is a generic key handling function which supports WEP, WPA
 981  * and WAPI.
 982  */
 983 static int
 984 mwifiex_sec_ioctl_encrypt_key(struct mwifiex_private *priv,
 985                               struct mwifiex_ds_encrypt_key *encrypt_key)
 986 {
 987         int status;
 988
 989         if (encrypt_key->is_wapi_key)
 990                 status = mwifiex_sec_ioctl_set_wapi_key(priv, encrypt_key);
 991         else if (encrypt_key->key_len > WLAN_KEY_LEN_WEP104)
 992                 status = mwifiex_sec_ioctl_set_wpa_key(priv, encrypt_key);
 993         else
 994                 status = mwifiex_sec_ioctl_set_wep_key(priv, encrypt_key);
 995         return status;
 996 }
 997
 998 /*
 999  * This function returns the driver version.
1000  */
1001 int
1002 mwifiex_drv_get_driver_version(struct mwifiex_adapter *adapter, char *version,
1003                                int max_len)
1004 {
1005         union {
1006                 u32 l;
1007                 u8 c[4];
1008         } ver;
1009         char fw_ver[32];
1010
1011         ver.l = adapter->fw_release_number;
1012         sprintf(fw_ver, "%u.%u.%u.p%u", ver.c[2], ver.c[1], ver.c[0], ver.c[3]);
1013
1014         snprintf(version, max_len, driver_version, fw_ver);
1015
1016         dev_dbg(adapter->dev, "info: MWIFIEX VERSION: %s\n", version);
1017
1018         return 0;
1019 }
1020
1021 /*
1022  * Sends IOCTL request to set encoding parameters.
1023  *
1024  * This function allocates the IOCTL request buffer, fills it
1025  * with requisite parameters and calls the IOCTL handler.
1026  */
1027 int mwifiex_set_encode(struct mwifiex_private *priv, struct key_params *kp,
1028                        const u8 *key, int key_len, u8 key_index,
1029                        const u8 *mac_addr, int disable)
1030 {
1031         struct mwifiex_ds_encrypt_key encrypt_key;
1032
1033         memset(&encrypt_key, 0, sizeof(struct mwifiex_ds_encrypt_key));
1034         encrypt_key.key_len = key_len;
1035
1036         if (kp && kp->cipher == WLAN_CIPHER_SUITE_AES_CMAC)
1037                 encrypt_key.is_igtk_key = true;
1038
1039         if (!disable) {
1040                 encrypt_key.key_index = key_index;
1041                 if (key_len)
1042                         memcpy(encrypt_key.key_material, key, key_len);
1043                 if (mac_addr)
1044                         memcpy(encrypt_key.mac_addr, mac_addr, ETH_ALEN);
1045                 if (kp && kp->seq && kp->seq_len)
1046                         memcpy(encrypt_key.pn, kp->seq, kp->seq_len);
1047         } else {
1048                 encrypt_key.key_disable = true;
1049                 if (mac_addr)
1050                         memcpy(encrypt_key.mac_addr, mac_addr, ETH_ALEN);
1051         }
1052
1053         return mwifiex_sec_ioctl_encrypt_key(priv, &encrypt_key);
1054 }
1055
1056 /*
1057  * Sends IOCTL request to get extended version.
1058  *
1059  * This function allocates the IOCTL request buffer, fills it
1060  * with requisite parameters and calls the IOCTL handler.
1061  */
1062 int
1063 mwifiex_get_ver_ext(struct mwifiex_private *priv)
1064 {
1065         struct mwifiex_ver_ext ver_ext;
1066
1067         memset(&ver_ext, 0, sizeof(struct host_cmd_ds_version_ext));
1068         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_VERSION_EXT,
1069                                   HostCmd_ACT_GEN_GET, 0, &ver_ext))
1070                 return -1;
1071
1072         return 0;
1073 }
1074
1075 int
1076 mwifiex_remain_on_chan_cfg(struct mwifiex_private *priv, u16 action,
1077                            struct ieee80211_channel *chan,
1078                            unsigned int duration)
1079 {
1080         struct host_cmd_ds_remain_on_chan roc_cfg;
1081         u8 sc;
1082
1083         memset(&roc_cfg, 0, sizeof(roc_cfg));
1084         roc_cfg.action = cpu_to_le16(action);
1085         if (action == HostCmd_ACT_GEN_SET) {
1086                 roc_cfg.band_cfg = chan->band;
1087                 sc = mwifiex_chan_type_to_sec_chan_offset(NL80211_CHAN_NO_HT);
1088                 roc_cfg.band_cfg |= (sc << 2);
1089
1090                 roc_cfg.channel =
1091                         ieee80211_frequency_to_channel(chan->center_freq);
1092                 roc_cfg.duration = cpu_to_le32(duration);
1093         }
1094         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_REMAIN_ON_CHAN,
1095                                   action, 0, &roc_cfg)) {
1096                 dev_err(priv->adapter->dev, "failed to remain on channel\n");
1097                 return -1;
1098         }
1099
1100         return roc_cfg.status;
1101 }
1102
1103 int
1104 mwifiex_set_bss_role(struct mwifiex_private *priv, u8 bss_role)
1105 {
1106         if (GET_BSS_ROLE(priv) == bss_role) {
1107                 dev_dbg(priv->adapter->dev,
1108                         "info: already in the desired role.\n");
1109                 return 0;
1110         }
1111
1112         mwifiex_free_priv(priv);
1113         mwifiex_init_priv(priv);
1114
1115         priv->bss_role = bss_role;
1116         switch (bss_role) {
1117         case MWIFIEX_BSS_ROLE_UAP:
1118                 priv->bss_mode = NL80211_IFTYPE_AP;
1119                 break;
1120         case MWIFIEX_BSS_ROLE_STA:
1121         case MWIFIEX_BSS_ROLE_ANY:
1122         default:
1123                 priv->bss_mode = NL80211_IFTYPE_STATION;
1124                 break;
1125         }
1126
1127         mwifiex_send_cmd_sync(priv, HostCmd_CMD_SET_BSS_MODE,
1128                               HostCmd_ACT_GEN_SET, 0, NULL);
1129
1130         return mwifiex_sta_init_cmd(priv, false);
1131 }
1132
1133 /*
1134  * Sends IOCTL request to get statistics information.
1135  *
1136  * This function allocates the IOCTL request buffer, fills it
1137  * with requisite parameters and calls the IOCTL handler.
1138  */
1139 int
1140 mwifiex_get_stats_info(struct mwifiex_private *priv,
1141                        struct mwifiex_ds_get_stats *log)
1142 {
1143         return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_GET_LOG,
1144                                      HostCmd_ACT_GEN_GET, 0, log);
1145 }
1146
1147 /*
1148  * IOCTL request handler to read/write register.
1149  *
1150  * This function prepares the correct firmware command and
1151  * issues it.
1152  *
1153  * Access to the following registers are supported -
1154  *      - MAC
1155  *      - BBP
1156  *      - RF
1157  *      - PMIC
1158  *      - CAU
1159  */
1160 static int mwifiex_reg_mem_ioctl_reg_rw(struct mwifiex_private *priv,
1161                                         struct mwifiex_ds_reg_rw *reg_rw,
1162                                         u16 action)
1163 {
1164         u16 cmd_no;
1165
1166         switch (le32_to_cpu(reg_rw->type)) {
1167         case MWIFIEX_REG_MAC:
1168                 cmd_no = HostCmd_CMD_MAC_REG_ACCESS;
1169                 break;
1170         case MWIFIEX_REG_BBP:
1171                 cmd_no = HostCmd_CMD_BBP_REG_ACCESS;
1172                 break;
1173         case MWIFIEX_REG_RF:
1174                 cmd_no = HostCmd_CMD_RF_REG_ACCESS;
1175                 break;
1176         case MWIFIEX_REG_PMIC:
1177                 cmd_no = HostCmd_CMD_PMIC_REG_ACCESS;
1178                 break;
1179         case MWIFIEX_REG_CAU:
1180                 cmd_no = HostCmd_CMD_CAU_REG_ACCESS;
1181                 break;
1182         default:
1183                 return -1;
1184         }
1185
1186         return mwifiex_send_cmd_sync(priv, cmd_no, action, 0, reg_rw);
1187
1188 }
1189
1190 /*
1191  * Sends IOCTL request to write to a register.
1192  *
1193  * This function allocates the IOCTL request buffer, fills it
1194  * with requisite parameters and calls the IOCTL handler.
1195  */
1196 int
1197 mwifiex_reg_write(struct mwifiex_private *priv, u32 reg_type,
1198                   u32 reg_offset, u32 reg_value)
1199 {
1200         struct mwifiex_ds_reg_rw reg_rw;
1201
1202         reg_rw.type = cpu_to_le32(reg_type);
1203         reg_rw.offset = cpu_to_le32(reg_offset);
1204         reg_rw.value = cpu_to_le32(reg_value);
1205
1206         return mwifiex_reg_mem_ioctl_reg_rw(priv, &reg_rw, HostCmd_ACT_GEN_SET);
1207 }
1208
1209 /*
1210  * Sends IOCTL request to read from a register.
1211  *
1212  * This function allocates the IOCTL request buffer, fills it
1213  * with requisite parameters and calls the IOCTL handler.
1214  */
1215 int
1216 mwifiex_reg_read(struct mwifiex_private *priv, u32 reg_type,
1217                  u32 reg_offset, u32 *value)
1218 {
1219         int ret;
1220         struct mwifiex_ds_reg_rw reg_rw;
1221
1222         reg_rw.type = cpu_to_le32(reg_type);
1223         reg_rw.offset = cpu_to_le32(reg_offset);
1224         ret = mwifiex_reg_mem_ioctl_reg_rw(priv, &reg_rw, HostCmd_ACT_GEN_GET);
1225
1226         if (ret)
1227                 goto done;
1228
1229         *value = le32_to_cpu(reg_rw.value);
1230
1231 done:
1232         return ret;
1233 }
1234
1235 /*
1236  * Sends IOCTL request to read from EEPROM.
1237  *
1238  * This function allocates the IOCTL request buffer, fills it
1239  * with requisite parameters and calls the IOCTL handler.
1240  */
1241 int
1242 mwifiex_eeprom_read(struct mwifiex_private *priv, u16 offset, u16 bytes,
1243                     u8 *value)
1244 {
1245         int ret;
1246         struct mwifiex_ds_read_eeprom rd_eeprom;
1247
1248         rd_eeprom.offset = cpu_to_le16((u16) offset);
1249         rd_eeprom.byte_count = cpu_to_le16((u16) bytes);
1250
1251         /* Send request to firmware */
1252         ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_EEPROM_ACCESS,
1253                                     HostCmd_ACT_GEN_GET, 0, &rd_eeprom);
1254
1255         if (!ret)
1256                 memcpy(value, rd_eeprom.value, MAX_EEPROM_DATA);
1257         return ret;
1258 }
1259
1260 /*
1261  * This function sets a generic IE. In addition to generic IE, it can
1262  * also handle WPA, WPA2 and WAPI IEs.
1263  */
1264 static int
1265 mwifiex_set_gen_ie_helper(struct mwifiex_private *priv, u8 *ie_data_ptr,
1266                           u16 ie_len)
1267 {
1268         int ret = 0;
1269         struct ieee_types_vendor_header *pvendor_ie;
1270         const u8 wpa_oui[] = { 0x00, 0x50, 0xf2, 0x01 };
1271         const u8 wps_oui[] = { 0x00, 0x50, 0xf2, 0x04 };
1272
1273         /* If the passed length is zero, reset the buffer */
1274         if (!ie_len) {
1275                 priv->gen_ie_buf_len = 0;
1276                 priv->wps.session_enable = false;
1277
1278                 return 0;
1279         } else if (!ie_data_ptr) {
1280                 return -1;
1281         }
1282         pvendor_ie = (struct ieee_types_vendor_header *) ie_data_ptr;
1283         /* Test to see if it is a WPA IE, if not, then it is a gen IE */
1284         if (((pvendor_ie->element_id == WLAN_EID_VENDOR_SPECIFIC) &&
1285              (!memcmp(pvendor_ie->oui, wpa_oui, sizeof(wpa_oui)))) ||
1286             (pvendor_ie->element_id == WLAN_EID_RSN)) {
1287
1288                 /* IE is a WPA/WPA2 IE so call set_wpa function */
1289                 ret = mwifiex_set_wpa_ie_helper(priv, ie_data_ptr, ie_len);
1290                 priv->wps.session_enable = false;
1291
1292                 return ret;
1293         } else if (pvendor_ie->element_id == WLAN_EID_BSS_AC_ACCESS_DELAY) {
1294                 /* IE is a WAPI IE so call set_wapi function */
1295                 ret = mwifiex_set_wapi_ie(priv, ie_data_ptr, ie_len);
1296
1297                 return ret;
1298         }
1299         /*
1300          * Verify that the passed length is not larger than the
1301          * available space remaining in the buffer
1302          */
1303         if (ie_len < (sizeof(priv->gen_ie_buf) - priv->gen_ie_buf_len)) {
1304
1305                 /* Test to see if it is a WPS IE, if so, enable
1306                  * wps session flag
1307                  */
1308                 pvendor_ie = (struct ieee_types_vendor_header *) ie_data_ptr;
1309                 if ((pvendor_ie->element_id == WLAN_EID_VENDOR_SPECIFIC) &&
1310                     (!memcmp(pvendor_ie->oui, wps_oui, sizeof(wps_oui)))) {
1311                         priv->wps.session_enable = true;
1312                         dev_dbg(priv->adapter->dev,
1313                                 "info: WPS Session Enabled.\n");
1314                         ret = mwifiex_set_wps_ie(priv, ie_data_ptr, ie_len);
1315                 }
1316
1317                 /* Append the passed data to the end of the
1318                    genIeBuffer */
1319                 memcpy(priv->gen_ie_buf + priv->gen_ie_buf_len, ie_data_ptr,
1320                        ie_len);
1321                 /* Increment the stored buffer length by the
1322                    size passed */
1323                 priv->gen_ie_buf_len += ie_len;
1324         } else {
1325                 /* Passed data does not fit in the remaining
1326                    buffer space */
1327                 ret = -1;
1328         }
1329
1330         /* Return 0, or -1 for error case */
1331         return ret;
1332 }
1333
1334 /*
1335  * IOCTL request handler to set/get generic IE.
1336  *
1337  * In addition to various generic IEs, this function can also be
1338  * used to set the ARP filter.
1339  */
1340 static int mwifiex_misc_ioctl_gen_ie(struct mwifiex_private *priv,
1341                                      struct mwifiex_ds_misc_gen_ie *gen_ie,
1342                                      u16 action)
1343 {
1344         struct mwifiex_adapter *adapter = priv->adapter;
1345
1346         switch (gen_ie->type) {
1347         case MWIFIEX_IE_TYPE_GEN_IE:
1348                 if (action == HostCmd_ACT_GEN_GET) {
1349                         gen_ie->len = priv->wpa_ie_len;
1350                         memcpy(gen_ie->ie_data, priv->wpa_ie, gen_ie->len);
1351                 } else {
1352                         mwifiex_set_gen_ie_helper(priv, gen_ie->ie_data,
1353                                                   (u16) gen_ie->len);
1354                 }
1355                 break;
1356         case MWIFIEX_IE_TYPE_ARP_FILTER:
1357                 memset(adapter->arp_filter, 0, sizeof(adapter->arp_filter));
1358                 if (gen_ie->len > ARP_FILTER_MAX_BUF_SIZE) {
1359                         adapter->arp_filter_size = 0;
1360                         dev_err(adapter->dev, "invalid ARP filter size\n");
1361                         return -1;
1362                 } else {
1363                         memcpy(adapter->arp_filter, gen_ie->ie_data,
1364                                gen_ie->len);
1365                         adapter->arp_filter_size = gen_ie->len;
1366                 }
1367                 break;
1368         default:
1369                 dev_err(adapter->dev, "invalid IE type\n");
1370                 return -1;
1371         }
1372         return 0;
1373 }
1374
1375 /*
1376  * Sends IOCTL request to set a generic IE.
1377  *
1378  * This function allocates the IOCTL request buffer, fills it
1379  * with requisite parameters and calls the IOCTL handler.
1380  */
1381 int
1382 mwifiex_set_gen_ie(struct mwifiex_private *priv, u8 *ie, int ie_len)
1383 {
1384         struct mwifiex_ds_misc_gen_ie gen_ie;
1385
1386         if (ie_len > IEEE_MAX_IE_SIZE)
1387                 return -EFAULT;
1388
1389         gen_ie.type = MWIFIEX_IE_TYPE_GEN_IE;
1390         gen_ie.len = ie_len;
1391         memcpy(gen_ie.ie_data, ie, ie_len);
1392         if (mwifiex_misc_ioctl_gen_ie(priv, &gen_ie, HostCmd_ACT_GEN_SET))
1393                 return -EFAULT;
1394
1395         return 0;
1396 }