drivers/net/wireless/mwifiex/sta_ioctl.c

   1 /*
   2  * Marvell Wireless LAN device driver: functions for station ioctl
   3  *
   4  * Copyright (C) 2011-2014, 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;
  30 module_param(disconnect_on_suspend, int, 0644);
  31
  32 /*
  33  * Copies the multicast address list from device to driver.
  34  *
  35  * This function does not validate the destination memory for
  36  * size, and the calling function must ensure enough memory is
  37  * available.
  38  */
  39 int mwifiex_copy_mcast_addr(struct mwifiex_multicast_list *mlist,
  40                             struct net_device *dev)
  41 {
  42         int i = 0;
  43         struct netdev_hw_addr *ha;
  44
  45         netdev_for_each_mc_addr(ha, dev)
  46                 memcpy(&mlist->mac_list[i++], ha->addr, ETH_ALEN);
  47
  48         return i;
  49 }
  50
  51 /*
  52  * Wait queue completion handler.
  53  *
  54  * This function waits on a cmd wait queue. It also cancels the pending
  55  * request after waking up, in case of errors.
  56  */
  57 int mwifiex_wait_queue_complete(struct mwifiex_adapter *adapter,
  58                                 struct cmd_ctrl_node *cmd_queued)
  59 {
  60         int status;
  61
  62         /* Wait for completion */
  63         status = wait_event_interruptible_timeout(adapter->cmd_wait_q.wait,
  64                                                   *(cmd_queued->condition),
  65                                                   (12 * HZ));
  66         if (status <= 0) {
  67                 if (status == 0)
  68                         status = -ETIMEDOUT;
  69                 mwifiex_dbg(adapter, ERROR, "cmd_wait_q terminated: %d\n",
  70                             status);
  71                 mwifiex_cancel_all_pending_cmd(adapter);
  72                 return status;
  73         }
  74
  75         status = adapter->cmd_wait_q.status;
  76         adapter->cmd_wait_q.status = 0;
  77
  78         return status;
  79 }
  80
  81 /*
  82  * This function prepares the correct firmware command and
  83  * issues it to set the multicast list.
  84  *
  85  * This function can be used to enable promiscuous mode, or enable all
  86  * multicast packets, or to enable selective multicast.
  87  */
  88 int mwifiex_request_set_multicast_list(struct mwifiex_private *priv,
  89                                 struct mwifiex_multicast_list *mcast_list)
  90 {
  91         int ret = 0;
  92         u16 old_pkt_filter;
  93
  94         old_pkt_filter = priv->curr_pkt_filter;
  95
  96         if (mcast_list->mode == MWIFIEX_PROMISC_MODE) {
  97                 mwifiex_dbg(priv->adapter, INFO,
  98                             "info: Enable Promiscuous mode\n");
  99                 priv->curr_pkt_filter |= HostCmd_ACT_MAC_PROMISCUOUS_ENABLE;
 100                 priv->curr_pkt_filter &=
 101                         ~HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE;
 102         } else {
 103                 /* Multicast */
 104                 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_PROMISCUOUS_ENABLE;
 105                 if (mcast_list->mode == MWIFIEX_ALL_MULTI_MODE) {
 106                         mwifiex_dbg(priv->adapter, INFO,
 107                                     "info: Enabling All Multicast!\n");
 108                         priv->curr_pkt_filter |=
 109                                 HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE;
 110                 } else {
 111                         priv->curr_pkt_filter &=
 112                                 ~HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE;
 113                         mwifiex_dbg(priv->adapter, INFO,
 114                                     "info: Set multicast list=%d\n",
 115                                     mcast_list->num_multicast_addr);
 116                         /* Send multicast addresses to firmware */
 117                         ret = mwifiex_send_cmd(priv,
 118                                                HostCmd_CMD_MAC_MULTICAST_ADR,
 119                                                HostCmd_ACT_GEN_SET, 0,
 120                                                mcast_list, false);
 121                 }
 122         }
 123         mwifiex_dbg(priv->adapter, INFO,
 124                     "info: old_pkt_filter=%#x, curr_pkt_filter=%#x\n",
 125                     old_pkt_filter, priv->curr_pkt_filter);
 126         if (old_pkt_filter != priv->curr_pkt_filter) {
 127                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_MAC_CONTROL,
 128                                        HostCmd_ACT_GEN_SET,
 129                                        0, &priv->curr_pkt_filter, false);
 130         }
 131
 132         return ret;
 133 }
 134
 135 /*
 136  * This function fills bss descriptor structure using provided
 137  * information.
 138  * beacon_ie buffer is allocated in this function. It is caller's
 139  * responsibility to free the memory.
 140  */
 141 int mwifiex_fill_new_bss_desc(struct mwifiex_private *priv,
 142                               struct cfg80211_bss *bss,
 143                               struct mwifiex_bssdescriptor *bss_desc)
 144 {
 145         u8 *beacon_ie;
 146         size_t beacon_ie_len;
 147         struct mwifiex_bss_priv *bss_priv = (void *)bss->priv;
 148         const struct cfg80211_bss_ies *ies;
 149
 150         rcu_read_lock();
 151         ies = rcu_dereference(bss->ies);
 152         beacon_ie = kmemdup(ies->data, ies->len, GFP_ATOMIC);
 153         beacon_ie_len = ies->len;
 154         bss_desc->timestamp = ies->tsf;
 155         rcu_read_unlock();
 156
 157         if (!beacon_ie) {
 158                 mwifiex_dbg(priv->adapter, ERROR,
 159                             " failed to alloc beacon_ie\n");
 160                 return -ENOMEM;
 161         }
 162
 163         memcpy(bss_desc->mac_address, bss->bssid, ETH_ALEN);
 164         bss_desc->rssi = bss->signal;
 165         /* The caller of this function will free beacon_ie */
 166         bss_desc->beacon_buf = beacon_ie;
 167         bss_desc->beacon_buf_size = beacon_ie_len;
 168         bss_desc->beacon_period = bss->beacon_interval;
 169         bss_desc->cap_info_bitmap = bss->capability;
 170         bss_desc->bss_band = bss_priv->band;
 171         bss_desc->fw_tsf = bss_priv->fw_tsf;
 172         if (bss_desc->cap_info_bitmap & WLAN_CAPABILITY_PRIVACY) {
 173                 mwifiex_dbg(priv->adapter, INFO,
 174                             "info: InterpretIE: AP WEP enabled\n");
 175                 bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_8021X_WEP;
 176         } else {
 177                 bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_ACCEPT_ALL;
 178         }
 179         if (bss_desc->cap_info_bitmap & WLAN_CAPABILITY_IBSS)
 180                 bss_desc->bss_mode = NL80211_IFTYPE_ADHOC;
 181         else
 182                 bss_desc->bss_mode = NL80211_IFTYPE_STATION;
 183
 184         /* Disable 11ac by default. Enable it only where there
 185          * exist VHT_CAP IE in AP beacon
 186          */
 187         bss_desc->disable_11ac = true;
 188
 189         if (bss_desc->cap_info_bitmap & WLAN_CAPABILITY_SPECTRUM_MGMT)
 190                 bss_desc->sensed_11h = true;
 191
 192         return mwifiex_update_bss_desc_with_ie(priv->adapter, bss_desc);
 193 }
 194
 195 void mwifiex_dnld_txpwr_table(struct mwifiex_private *priv)
 196 {
 197         if (priv->adapter->dt_node) {
 198                 char txpwr[] = {"marvell,00_txpwrlimit"};
 199
 200                 memcpy(&txpwr[8], priv->adapter->country_code, 2);
 201                 mwifiex_dnld_dt_cfgdata(priv, priv->adapter->dt_node, txpwr);
 202         }
 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         if (!strncmp(priv->adapter->country_code, &country_ie[2], 2)) {
 227                 rcu_read_unlock();
 228                 mwifiex_dbg(priv->adapter, INFO,
 229                             "11D: skip setting domain info in FW\n");
 230                 return 0;
 231         }
 232
 233         if (country_ie_len >
 234             (IEEE80211_COUNTRY_STRING_LEN + MWIFIEX_MAX_TRIPLET_802_11D)) {
 235                 mwifiex_dbg(priv->adapter, ERROR,
 236                             "11D: country_ie_len overflow!, deauth AP\n");
 237                 return -EINVAL;
 238         }
 239
 240         memcpy(priv->adapter->country_code, &country_ie[2], 2);
 241
 242         domain_info->country_code[0] = country_ie[2];
 243         domain_info->country_code[1] = country_ie[3];
 244         domain_info->country_code[2] = ' ';
 245
 246         country_ie_len -= IEEE80211_COUNTRY_STRING_LEN;
 247
 248         domain_info->no_of_triplet =
 249                 country_ie_len / sizeof(struct ieee80211_country_ie_triplet);
 250
 251         memcpy((u8 *)domain_info->triplet,
 252                &country_ie[2] + IEEE80211_COUNTRY_STRING_LEN, country_ie_len);
 253
 254         rcu_read_unlock();
 255
 256         if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
 257                              HostCmd_ACT_GEN_SET, 0, NULL, false)) {
 258                 mwifiex_dbg(priv->adapter, ERROR,
 259                             "11D: setting domain info in FW fail\n");
 260                 return -1;
 261         }
 262
 263         mwifiex_dnld_txpwr_table(priv);
 264
 265         return 0;
 266 }
 267
 268 /*
 269  * In Ad-Hoc mode, the IBSS is created if not found in scan list.
 270  * In both Ad-Hoc and infra mode, an deauthentication is performed
 271  * first.
 272  */
 273 int mwifiex_bss_start(struct mwifiex_private *priv, struct cfg80211_bss *bss,
 274                       struct cfg80211_ssid *req_ssid)
 275 {
 276         int ret;
 277         struct mwifiex_adapter *adapter = priv->adapter;
 278         struct mwifiex_bssdescriptor *bss_desc = NULL;
 279
 280         priv->scan_block = false;
 281
 282         if (bss) {
 283                 if (mwifiex_process_country_ie(priv, bss))
 284                         return -EINVAL;
 285
 286                 /* Allocate and fill new bss descriptor */
 287                 bss_desc = kzalloc(sizeof(struct mwifiex_bssdescriptor),
 288                                    GFP_KERNEL);
 289                 if (!bss_desc)
 290                         return -ENOMEM;
 291
 292                 ret = mwifiex_fill_new_bss_desc(priv, bss, bss_desc);
 293                 if (ret)
 294                         goto done;
 295         }
 296
 297         if (priv->bss_mode == NL80211_IFTYPE_STATION ||
 298             priv->bss_mode == NL80211_IFTYPE_P2P_CLIENT) {
 299                 u8 config_bands;
 300
 301                 if (!bss_desc)
 302                         return -1;
 303
 304                 if (mwifiex_band_to_radio_type(bss_desc->bss_band) ==
 305                                                 HostCmd_SCAN_RADIO_TYPE_BG) {
 306                         config_bands = BAND_B | BAND_G | BAND_GN;
 307                 } else {
 308                         config_bands = BAND_A | BAND_AN;
 309                         if (adapter->fw_bands & BAND_AAC)
 310                                 config_bands |= BAND_AAC;
 311                 }
 312
 313                 if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands))
 314                         adapter->config_bands = config_bands;
 315
 316                 ret = mwifiex_check_network_compatibility(priv, bss_desc);
 317                 if (ret)
 318                         goto done;
 319
 320                 if (mwifiex_11h_get_csa_closed_channel(priv) ==
 321                                                         (u8)bss_desc->channel) {
 322                         mwifiex_dbg(adapter, ERROR,
 323                                     "Attempt to reconnect on csa closed chan(%d)\n",
 324                                     bss_desc->channel);
 325                         ret = -1;
 326                         goto done;
 327                 }
 328
 329                 mwifiex_dbg(adapter, INFO,
 330                             "info: SSID found in scan list ...\t"
 331                             "associating...\n");
 332
 333                 mwifiex_stop_net_dev_queue(priv->netdev, adapter);
 334                 if (netif_carrier_ok(priv->netdev))
 335                         netif_carrier_off(priv->netdev);
 336
 337                 /* Clear any past association response stored for
 338                  * application retrieval */
 339                 priv->assoc_rsp_size = 0;
 340                 ret = mwifiex_associate(priv, bss_desc);
 341
 342                 /* If auth type is auto and association fails using open mode,
 343                  * try to connect using shared mode */
 344                 if (ret == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG &&
 345                     priv->sec_info.is_authtype_auto &&
 346                     priv->sec_info.wep_enabled) {
 347                         priv->sec_info.authentication_mode =
 348                                                 NL80211_AUTHTYPE_SHARED_KEY;
 349                         ret = mwifiex_associate(priv, bss_desc);
 350                 }
 351
 352                 if (bss)
 353                         cfg80211_put_bss(priv->adapter->wiphy, bss);
 354         } else {
 355                 /* Adhoc mode */
 356                 /* If the requested SSID matches current SSID, return */
 357                 if (bss_desc && bss_desc->ssid.ssid_len &&
 358                     (!mwifiex_ssid_cmp(&priv->curr_bss_params.bss_descriptor.
 359                                        ssid, &bss_desc->ssid))) {
 360                         ret = 0;
 361                         goto done;
 362                 }
 363
 364                 priv->adhoc_is_link_sensed = false;
 365
 366                 ret = mwifiex_check_network_compatibility(priv, bss_desc);
 367
 368                 mwifiex_stop_net_dev_queue(priv->netdev, adapter);
 369                 if (netif_carrier_ok(priv->netdev))
 370                         netif_carrier_off(priv->netdev);
 371
 372                 if (!ret) {
 373                         mwifiex_dbg(adapter, INFO,
 374                                     "info: network found in scan\t"
 375                                     " list. Joining...\n");
 376                         ret = mwifiex_adhoc_join(priv, bss_desc);
 377                         if (bss)
 378                                 cfg80211_put_bss(priv->adapter->wiphy, bss);
 379                 } else {
 380                         mwifiex_dbg(adapter, INFO,
 381                                     "info: Network not found in\t"
 382                                     "the list, creating adhoc with ssid = %s\n",
 383                                     req_ssid->ssid);
 384                         ret = mwifiex_adhoc_start(priv, req_ssid);
 385                 }
 386         }
 387
 388 done:
 389         /* beacon_ie buffer was allocated in function
 390          * mwifiex_fill_new_bss_desc(). Free it now.
 391          */
 392         if (bss_desc)
 393                 kfree(bss_desc->beacon_buf);
 394         kfree(bss_desc);
 395         return ret;
 396 }
 397
 398 /*
 399  * IOCTL request handler to set host sleep configuration.
 400  *
 401  * This function prepares the correct firmware command and
 402  * issues it.
 403  */
 404 int mwifiex_set_hs_params(struct mwifiex_private *priv, u16 action,
 405                           int cmd_type, struct mwifiex_ds_hs_cfg *hs_cfg)
 406
 407 {
 408         struct mwifiex_adapter *adapter = priv->adapter;
 409         int status = 0;
 410         u32 prev_cond = 0;
 411
 412         if (!hs_cfg)
 413                 return -ENOMEM;
 414
 415         switch (action) {
 416         case HostCmd_ACT_GEN_SET:
 417                 if (adapter->pps_uapsd_mode) {
 418                         mwifiex_dbg(adapter, INFO,
 419                                     "info: Host Sleep IOCTL\t"
 420                                     "is blocked in UAPSD/PPS mode\n");
 421                         status = -1;
 422                         break;
 423                 }
 424                 if (hs_cfg->is_invoke_hostcmd) {
 425                         if (hs_cfg->conditions == HS_CFG_CANCEL) {
 426                                 if (!adapter->is_hs_configured)
 427                                         /* Already cancelled */
 428                                         break;
 429                                 /* Save previous condition */
 430                                 prev_cond = le32_to_cpu(adapter->hs_cfg
 431                                                         .conditions);
 432                                 adapter->hs_cfg.conditions =
 433                                                 cpu_to_le32(hs_cfg->conditions);
 434                         } else if (hs_cfg->conditions) {
 435                                 adapter->hs_cfg.conditions =
 436                                                 cpu_to_le32(hs_cfg->conditions);
 437                                 adapter->hs_cfg.gpio = (u8)hs_cfg->gpio;
 438                                 if (hs_cfg->gap)
 439                                         adapter->hs_cfg.gap = (u8)hs_cfg->gap;
 440                         } else if (adapter->hs_cfg.conditions ==
 441                                    cpu_to_le32(HS_CFG_CANCEL)) {
 442                                 /* Return failure if no parameters for HS
 443                                    enable */
 444                                 status = -1;
 445                                 break;
 446                         }
 447
 448                         status = mwifiex_send_cmd(priv,
 449                                                   HostCmd_CMD_802_11_HS_CFG_ENH,
 450                                                   HostCmd_ACT_GEN_SET, 0,
 451                                                   &adapter->hs_cfg,
 452                                                   cmd_type == MWIFIEX_SYNC_CMD);
 453
 454                         if (hs_cfg->conditions == HS_CFG_CANCEL)
 455                                 /* Restore previous condition */
 456                                 adapter->hs_cfg.conditions =
 457                                                 cpu_to_le32(prev_cond);
 458                 } else {
 459                         adapter->hs_cfg.conditions =
 460                                                 cpu_to_le32(hs_cfg->conditions);
 461                         adapter->hs_cfg.gpio = (u8)hs_cfg->gpio;
 462                         adapter->hs_cfg.gap = (u8)hs_cfg->gap;
 463                 }
 464                 break;
 465         case HostCmd_ACT_GEN_GET:
 466                 hs_cfg->conditions = le32_to_cpu(adapter->hs_cfg.conditions);
 467                 hs_cfg->gpio = adapter->hs_cfg.gpio;
 468                 hs_cfg->gap = adapter->hs_cfg.gap;
 469                 break;
 470         default:
 471                 status = -1;
 472                 break;
 473         }
 474
 475         return status;
 476 }
 477
 478 /*
 479  * Sends IOCTL request to cancel the existing Host Sleep configuration.
 480  *
 481  * This function allocates the IOCTL request buffer, fills it
 482  * with requisite parameters and calls the IOCTL handler.
 483  */
 484 int mwifiex_cancel_hs(struct mwifiex_private *priv, int cmd_type)
 485 {
 486         struct mwifiex_ds_hs_cfg hscfg;
 487
 488         hscfg.conditions = HS_CFG_CANCEL;
 489         hscfg.is_invoke_hostcmd = true;
 490
 491         return mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_SET,
 492                                     cmd_type, &hscfg);
 493 }
 494 EXPORT_SYMBOL_GPL(mwifiex_cancel_hs);
 495
 496 /*
 497  * Sends IOCTL request to cancel the existing Host Sleep configuration.
 498  *
 499  * This function allocates the IOCTL request buffer, fills it
 500  * with requisite parameters and calls the IOCTL handler.
 501  */
 502 int mwifiex_enable_hs(struct mwifiex_adapter *adapter)
 503 {
 504         struct mwifiex_ds_hs_cfg hscfg;
 505         struct mwifiex_private *priv;
 506         int i;
 507
 508         if (disconnect_on_suspend) {
 509                 for (i = 0; i < adapter->priv_num; i++) {
 510                         priv = adapter->priv[i];
 511                         if (priv)
 512                                 mwifiex_deauthenticate(priv, NULL);
 513                 }
 514         }
 515
 516         if (adapter->hs_activated) {
 517                 mwifiex_dbg(adapter, CMD,
 518                             "cmd: HS Already activated\n");
 519                 return true;
 520         }
 521
 522         adapter->hs_activate_wait_q_woken = false;
 523
 524         memset(&hscfg, 0, sizeof(struct mwifiex_ds_hs_cfg));
 525         hscfg.is_invoke_hostcmd = true;
 526
 527         adapter->hs_enabling = true;
 528         mwifiex_cancel_all_pending_cmd(adapter);
 529
 530         if (mwifiex_set_hs_params(mwifiex_get_priv(adapter,
 531                                                    MWIFIEX_BSS_ROLE_STA),
 532                                   HostCmd_ACT_GEN_SET, MWIFIEX_SYNC_CMD,
 533                                   &hscfg)) {
 534                 mwifiex_dbg(adapter, ERROR,
 535                             "IOCTL request HS enable failed\n");
 536                 return false;
 537         }
 538
 539         if (wait_event_interruptible_timeout(adapter->hs_activate_wait_q,
 540                                              adapter->hs_activate_wait_q_woken,
 541                                              (10 * HZ)) <= 0) {
 542                 mwifiex_dbg(adapter, ERROR,
 543                             "hs_activate_wait_q terminated\n");
 544                 return false;
 545         }
 546
 547         return true;
 548 }
 549 EXPORT_SYMBOL_GPL(mwifiex_enable_hs);
 550
 551 /*
 552  * IOCTL request handler to get BSS information.
 553  *
 554  * This function collates the information from different driver structures
 555  * to send to the user.
 556  */
 557 int mwifiex_get_bss_info(struct mwifiex_private *priv,
 558                          struct mwifiex_bss_info *info)
 559 {
 560         struct mwifiex_adapter *adapter = priv->adapter;
 561         struct mwifiex_bssdescriptor *bss_desc;
 562
 563         if (!info)
 564                 return -1;
 565
 566         bss_desc = &priv->curr_bss_params.bss_descriptor;
 567
 568         info->bss_mode = priv->bss_mode;
 569
 570         memcpy(&info->ssid, &bss_desc->ssid, sizeof(struct cfg80211_ssid));
 571
 572         memcpy(&info->bssid, &bss_desc->mac_address, ETH_ALEN);
 573
 574         info->bss_chan = bss_desc->channel;
 575
 576         memcpy(info->country_code, adapter->country_code,
 577                IEEE80211_COUNTRY_STRING_LEN);
 578
 579         info->media_connected = priv->media_connected;
 580
 581         info->max_power_level = priv->max_tx_power_level;
 582         info->min_power_level = priv->min_tx_power_level;
 583
 584         info->adhoc_state = priv->adhoc_state;
 585
 586         info->bcn_nf_last = priv->bcn_nf_last;
 587
 588         if (priv->sec_info.wep_enabled)
 589                 info->wep_status = true;
 590         else
 591                 info->wep_status = false;
 592
 593         info->is_hs_configured = adapter->is_hs_configured;
 594         info->is_deep_sleep = adapter->is_deep_sleep;
 595
 596         return 0;
 597 }
 598
 599 /*
 600  * The function disables auto deep sleep mode.
 601  */
 602 int mwifiex_disable_auto_ds(struct mwifiex_private *priv)
 603 {
 604         struct mwifiex_ds_auto_ds auto_ds;
 605
 606         auto_ds.auto_ds = DEEP_SLEEP_OFF;
 607
 608         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_PS_MODE_ENH,
 609                                 DIS_AUTO_PS, BITMAP_AUTO_DS, &auto_ds, true);
 610 }
 611 EXPORT_SYMBOL_GPL(mwifiex_disable_auto_ds);
 612
 613 /*
 614  * Sends IOCTL request to get the data rate.
 615  *
 616  * This function allocates the IOCTL request buffer, fills it
 617  * with requisite parameters and calls the IOCTL handler.
 618  */
 619 int mwifiex_drv_get_data_rate(struct mwifiex_private *priv, u32 *rate)
 620 {
 621         int ret;
 622
 623         ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_TX_RATE_QUERY,
 624                                HostCmd_ACT_GEN_GET, 0, NULL, true);
 625
 626         if (!ret) {
 627                 if (priv->is_data_rate_auto)
 628                         *rate = mwifiex_index_to_data_rate(priv, priv->tx_rate,
 629                                                            priv->tx_htinfo);
 630                 else
 631                         *rate = priv->data_rate;
 632         }
 633
 634         return ret;
 635 }
 636
 637 /*
 638  * IOCTL request handler to set tx power configuration.
 639  *
 640  * This function prepares the correct firmware command and
 641  * issues it.
 642  *
 643  * For non-auto power mode, all the following power groups are set -
 644  *      - Modulation class HR/DSSS
 645  *      - Modulation class OFDM
 646  *      - Modulation class HTBW20
 647  *      - Modulation class HTBW40
 648  */
 649 int mwifiex_set_tx_power(struct mwifiex_private *priv,
 650                          struct mwifiex_power_cfg *power_cfg)
 651 {
 652         int ret;
 653         struct host_cmd_ds_txpwr_cfg *txp_cfg;
 654         struct mwifiex_types_power_group *pg_tlv;
 655         struct mwifiex_power_group *pg;
 656         u8 *buf;
 657         u16 dbm = 0;
 658
 659         if (!power_cfg->is_power_auto) {
 660                 dbm = (u16) power_cfg->power_level;
 661                 if ((dbm < priv->min_tx_power_level) ||
 662                     (dbm > priv->max_tx_power_level)) {
 663                         mwifiex_dbg(priv->adapter, ERROR,
 664                                     "txpower value %d dBm\t"
 665                                     "is out of range (%d dBm-%d dBm)\n",
 666                                     dbm, priv->min_tx_power_level,
 667                                     priv->max_tx_power_level);
 668                         return -1;
 669                 }
 670         }
 671         buf = kzalloc(MWIFIEX_SIZE_OF_CMD_BUFFER, GFP_KERNEL);
 672         if (!buf)
 673                 return -ENOMEM;
 674
 675         txp_cfg = (struct host_cmd_ds_txpwr_cfg *) buf;
 676         txp_cfg->action = cpu_to_le16(HostCmd_ACT_GEN_SET);
 677         if (!power_cfg->is_power_auto) {
 678                 u16 dbm_min = power_cfg->is_power_fixed ?
 679                               dbm : priv->min_tx_power_level;
 680
 681                 txp_cfg->mode = cpu_to_le32(1);
 682                 pg_tlv = (struct mwifiex_types_power_group *)
 683                          (buf + sizeof(struct host_cmd_ds_txpwr_cfg));
 684                 pg_tlv->type = cpu_to_le16(TLV_TYPE_POWER_GROUP);
 685                 pg_tlv->length =
 686                         cpu_to_le16(4 * sizeof(struct mwifiex_power_group));
 687                 pg = (struct mwifiex_power_group *)
 688                      (buf + sizeof(struct host_cmd_ds_txpwr_cfg)
 689                       + sizeof(struct mwifiex_types_power_group));
 690                 /* Power group for modulation class HR/DSSS */
 691                 pg->first_rate_code = 0x00;
 692                 pg->last_rate_code = 0x03;
 693                 pg->modulation_class = MOD_CLASS_HR_DSSS;
 694                 pg->power_step = 0;
 695                 pg->power_min = (s8) dbm_min;
 696                 pg->power_max = (s8) dbm;
 697                 pg++;
 698                 /* Power group for modulation class OFDM */
 699                 pg->first_rate_code = 0x00;
 700                 pg->last_rate_code = 0x07;
 701                 pg->modulation_class = MOD_CLASS_OFDM;
 702                 pg->power_step = 0;
 703                 pg->power_min = (s8) dbm_min;
 704                 pg->power_max = (s8) dbm;
 705                 pg++;
 706                 /* Power group for modulation class HTBW20 */
 707                 pg->first_rate_code = 0x00;
 708                 pg->last_rate_code = 0x20;
 709                 pg->modulation_class = MOD_CLASS_HT;
 710                 pg->power_step = 0;
 711                 pg->power_min = (s8) dbm_min;
 712                 pg->power_max = (s8) dbm;
 713                 pg->ht_bandwidth = HT_BW_20;
 714                 pg++;
 715                 /* Power group for modulation class HTBW40 */
 716                 pg->first_rate_code = 0x00;
 717                 pg->last_rate_code = 0x20;
 718                 pg->modulation_class = MOD_CLASS_HT;
 719                 pg->power_step = 0;
 720                 pg->power_min = (s8) dbm_min;
 721                 pg->power_max = (s8) dbm;
 722                 pg->ht_bandwidth = HT_BW_40;
 723         }
 724         ret = mwifiex_send_cmd(priv, HostCmd_CMD_TXPWR_CFG,
 725                                HostCmd_ACT_GEN_SET, 0, buf, true);
 726
 727         kfree(buf);
 728         return ret;
 729 }
 730
 731 /*
 732  * IOCTL request handler to get power save mode.
 733  *
 734  * This function prepares the correct firmware command and
 735  * issues it.
 736  */
 737 int mwifiex_drv_set_power(struct mwifiex_private *priv, u32 *ps_mode)
 738 {
 739         int ret;
 740         struct mwifiex_adapter *adapter = priv->adapter;
 741         u16 sub_cmd;
 742
 743         if (*ps_mode)
 744                 adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_PSP;
 745         else
 746                 adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_CAM;
 747         sub_cmd = (*ps_mode) ? EN_AUTO_PS : DIS_AUTO_PS;
 748         ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_PS_MODE_ENH,
 749                                sub_cmd, BITMAP_STA_PS, NULL, true);
 750         if ((!ret) && (sub_cmd == DIS_AUTO_PS))
 751                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_PS_MODE_ENH,
 752                                        GET_PS, 0, NULL, false);
 753
 754         return ret;
 755 }
 756
 757 /*
 758  * IOCTL request handler to set/reset WPA IE.
 759  *
 760  * The supplied WPA IE is treated as a opaque buffer. Only the first field
 761  * is checked to determine WPA version. If buffer length is zero, the existing
 762  * WPA IE is reset.
 763  */
 764 static int mwifiex_set_wpa_ie_helper(struct mwifiex_private *priv,
 765                                      u8 *ie_data_ptr, u16 ie_len)
 766 {
 767         if (ie_len) {
 768                 if (ie_len > sizeof(priv->wpa_ie)) {
 769                         mwifiex_dbg(priv->adapter, ERROR,
 770                                     "failed to copy WPA IE, too big\n");
 771                         return -1;
 772                 }
 773                 memcpy(priv->wpa_ie, ie_data_ptr, ie_len);
 774                 priv->wpa_ie_len = (u8) ie_len;
 775                 mwifiex_dbg(priv->adapter, CMD,
 776                             "cmd: Set Wpa_ie_len=%d IE=%#x\n",
 777                             priv->wpa_ie_len, priv->wpa_ie[0]);
 778
 779                 if (priv->wpa_ie[0] == WLAN_EID_VENDOR_SPECIFIC) {
 780                         priv->sec_info.wpa_enabled = true;
 781                 } else if (priv->wpa_ie[0] == WLAN_EID_RSN) {
 782                         priv->sec_info.wpa2_enabled = true;
 783                 } else {
 784                         priv->sec_info.wpa_enabled = false;
 785                         priv->sec_info.wpa2_enabled = false;
 786                 }
 787         } else {
 788                 memset(priv->wpa_ie, 0, sizeof(priv->wpa_ie));
 789                 priv->wpa_ie_len = 0;
 790                 mwifiex_dbg(priv->adapter, INFO,
 791                             "info: reset wpa_ie_len=%d IE=%#x\n",
 792                             priv->wpa_ie_len, priv->wpa_ie[0]);
 793                 priv->sec_info.wpa_enabled = false;
 794                 priv->sec_info.wpa2_enabled = false;
 795         }
 796
 797         return 0;
 798 }
 799
 800 /*
 801  * IOCTL request handler to set/reset WAPI IE.
 802  *
 803  * The supplied WAPI IE is treated as a opaque buffer. Only the first field
 804  * is checked to internally enable WAPI. If buffer length is zero, the existing
 805  * WAPI IE is reset.
 806  */
 807 static int mwifiex_set_wapi_ie(struct mwifiex_private *priv,
 808                                u8 *ie_data_ptr, u16 ie_len)
 809 {
 810         if (ie_len) {
 811                 if (ie_len > sizeof(priv->wapi_ie)) {
 812                         mwifiex_dbg(priv->adapter, ERROR,
 813                                     "info: failed to copy WAPI IE, too big\n");
 814                         return -1;
 815                 }
 816                 memcpy(priv->wapi_ie, ie_data_ptr, ie_len);
 817                 priv->wapi_ie_len = ie_len;
 818                 mwifiex_dbg(priv->adapter, CMD,
 819                             "cmd: Set wapi_ie_len=%d IE=%#x\n",
 820                             priv->wapi_ie_len, priv->wapi_ie[0]);
 821
 822                 if (priv->wapi_ie[0] == WLAN_EID_BSS_AC_ACCESS_DELAY)
 823                         priv->sec_info.wapi_enabled = true;
 824         } else {
 825                 memset(priv->wapi_ie, 0, sizeof(priv->wapi_ie));
 826                 priv->wapi_ie_len = ie_len;
 827                 mwifiex_dbg(priv->adapter, INFO,
 828                             "info: Reset wapi_ie_len=%d IE=%#x\n",
 829                             priv->wapi_ie_len, priv->wapi_ie[0]);
 830                 priv->sec_info.wapi_enabled = false;
 831         }
 832         return 0;
 833 }
 834
 835 /*
 836  * IOCTL request handler to set/reset WPS IE.
 837  *
 838  * The supplied WPS IE is treated as a opaque buffer. Only the first field
 839  * is checked to internally enable WPS. If buffer length is zero, the existing
 840  * WPS IE is reset.
 841  */
 842 static int mwifiex_set_wps_ie(struct mwifiex_private *priv,
 843                                u8 *ie_data_ptr, u16 ie_len)
 844 {
 845         if (ie_len) {
 846                 if (ie_len > MWIFIEX_MAX_VSIE_LEN) {
 847                         mwifiex_dbg(priv->adapter, ERROR,
 848                                     "info: failed to copy WPS IE, too big\n");
 849                         return -1;
 850                 }
 851
 852                 priv->wps_ie = kzalloc(MWIFIEX_MAX_VSIE_LEN, GFP_KERNEL);
 853                 if (!priv->wps_ie)
 854                         return -ENOMEM;
 855
 856                 memcpy(priv->wps_ie, ie_data_ptr, ie_len);
 857                 priv->wps_ie_len = ie_len;
 858                 mwifiex_dbg(priv->adapter, CMD,
 859                             "cmd: Set wps_ie_len=%d IE=%#x\n",
 860                             priv->wps_ie_len, priv->wps_ie[0]);
 861         } else {
 862                 kfree(priv->wps_ie);
 863                 priv->wps_ie_len = ie_len;
 864                 mwifiex_dbg(priv->adapter, INFO,
 865                             "info: Reset wps_ie_len=%d\n", priv->wps_ie_len);
 866         }
 867         return 0;
 868 }
 869
 870 /*
 871  * IOCTL request handler to set WAPI key.
 872  *
 873  * This function prepares the correct firmware command and
 874  * issues it.
 875  */
 876 static int mwifiex_sec_ioctl_set_wapi_key(struct mwifiex_private *priv,
 877                                struct mwifiex_ds_encrypt_key *encrypt_key)
 878 {
 879
 880         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
 881                                 HostCmd_ACT_GEN_SET, KEY_INFO_ENABLED,
 882                                 encrypt_key, true);
 883 }
 884
 885 /*
 886  * IOCTL request handler to set WEP network key.
 887  *
 888  * This function prepares the correct firmware command and
 889  * issues it, after validation checks.
 890  */
 891 static int mwifiex_sec_ioctl_set_wep_key(struct mwifiex_private *priv,
 892                               struct mwifiex_ds_encrypt_key *encrypt_key)
 893 {
 894         struct mwifiex_adapter *adapter = priv->adapter;
 895         int ret;
 896         struct mwifiex_wep_key *wep_key;
 897         int index;
 898
 899         if (priv->wep_key_curr_index >= NUM_WEP_KEYS)
 900                 priv->wep_key_curr_index = 0;
 901         wep_key = &priv->wep_key[priv->wep_key_curr_index];
 902         index = encrypt_key->key_index;
 903         if (encrypt_key->key_disable) {
 904                 priv->sec_info.wep_enabled = 0;
 905         } else if (!encrypt_key->key_len) {
 906                 /* Copy the required key as the current key */
 907                 wep_key = &priv->wep_key[index];
 908                 if (!wep_key->key_length) {
 909                         mwifiex_dbg(adapter, ERROR,
 910                                     "key not set, so cannot enable it\n");
 911                         return -1;
 912                 }
 913
 914                 if (adapter->key_api_major_ver == KEY_API_VER_MAJOR_V2) {
 915                         memcpy(encrypt_key->key_material,
 916                                wep_key->key_material, wep_key->key_length);
 917                         encrypt_key->key_len = wep_key->key_length;
 918                 }
 919
 920                 priv->wep_key_curr_index = (u16) index;
 921                 priv->sec_info.wep_enabled = 1;
 922         } else {
 923                 wep_key = &priv->wep_key[index];
 924                 memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
 925                 /* Copy the key in the driver */
 926                 memcpy(wep_key->key_material,
 927                        encrypt_key->key_material,
 928                        encrypt_key->key_len);
 929                 wep_key->key_index = index;
 930                 wep_key->key_length = encrypt_key->key_len;
 931                 priv->sec_info.wep_enabled = 1;
 932         }
 933         if (wep_key->key_length) {
 934                 void *enc_key;
 935
 936                 if (encrypt_key->key_disable) {
 937                         memset(&priv->wep_key[index], 0,
 938                                sizeof(struct mwifiex_wep_key));
 939                         if (wep_key->key_length)
 940                                 goto done;
 941                         }
 942
 943                 if (adapter->key_api_major_ver == KEY_API_VER_MAJOR_V2)
 944                         enc_key = encrypt_key;
 945                 else
 946                         enc_key = NULL;
 947
 948                 /* Send request to firmware */
 949                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
 950                                        HostCmd_ACT_GEN_SET, 0, enc_key, false);
 951                 if (ret)
 952                         return ret;
 953         }
 954
 955 done:
 956         if (priv->sec_info.wep_enabled)
 957                 priv->curr_pkt_filter |= HostCmd_ACT_MAC_WEP_ENABLE;
 958         else
 959                 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_WEP_ENABLE;
 960
 961         ret = mwifiex_send_cmd(priv, HostCmd_CMD_MAC_CONTROL,
 962                                HostCmd_ACT_GEN_SET, 0,
 963                                &priv->curr_pkt_filter, true);
 964
 965         return ret;
 966 }
 967
 968 /*
 969  * IOCTL request handler to set WPA key.
 970  *
 971  * This function prepares the correct firmware command and
 972  * issues it, after validation checks.
 973  *
 974  * Current driver only supports key length of up to 32 bytes.
 975  *
 976  * This function can also be used to disable a currently set key.
 977  */
 978 static int mwifiex_sec_ioctl_set_wpa_key(struct mwifiex_private *priv,
 979                               struct mwifiex_ds_encrypt_key *encrypt_key)
 980 {
 981         int ret;
 982         u8 remove_key = false;
 983         struct host_cmd_ds_802_11_key_material *ibss_key;
 984
 985         /* Current driver only supports key length of up to 32 bytes */
 986         if (encrypt_key->key_len > WLAN_MAX_KEY_LEN) {
 987                 mwifiex_dbg(priv->adapter, ERROR,
 988                             "key length too long\n");
 989                 return -1;
 990         }
 991
 992         if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
 993                 /*
 994                  * IBSS/WPA-None uses only one key (Group) for both receiving
 995                  * and sending unicast and multicast packets.
 996                  */
 997                 /* Send the key as PTK to firmware */
 998                 encrypt_key->key_index = MWIFIEX_KEY_INDEX_UNICAST;
 999                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
1000                                        HostCmd_ACT_GEN_SET,
1001                                        KEY_INFO_ENABLED, encrypt_key, false);
1002                 if (ret)
1003                         return ret;
1004
1005                 ibss_key = &priv->aes_key;
1006                 memset(ibss_key, 0,
1007                        sizeof(struct host_cmd_ds_802_11_key_material));
1008                 /* Copy the key in the driver */
1009                 memcpy(ibss_key->key_param_set.key, encrypt_key->key_material,
1010                        encrypt_key->key_len);
1011                 memcpy(&ibss_key->key_param_set.key_len, &encrypt_key->key_len,
1012                        sizeof(ibss_key->key_param_set.key_len));
1013                 ibss_key->key_param_set.key_type_id
1014                         = cpu_to_le16(KEY_TYPE_ID_TKIP);
1015                 ibss_key->key_param_set.key_info = cpu_to_le16(KEY_ENABLED);
1016
1017                 /* Send the key as GTK to firmware */
1018                 encrypt_key->key_index = ~MWIFIEX_KEY_INDEX_UNICAST;
1019         }
1020
1021         if (!encrypt_key->key_index)
1022                 encrypt_key->key_index = MWIFIEX_KEY_INDEX_UNICAST;
1023
1024         if (remove_key)
1025                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
1026                                        HostCmd_ACT_GEN_SET,
1027                                        !KEY_INFO_ENABLED, encrypt_key, true);
1028         else
1029                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
1030                                        HostCmd_ACT_GEN_SET,
1031                                        KEY_INFO_ENABLED, encrypt_key, true);
1032
1033         return ret;
1034 }
1035
1036 /*
1037  * IOCTL request handler to set/get network keys.
1038  *
1039  * This is a generic key handling function which supports WEP, WPA
1040  * and WAPI.
1041  */
1042 static int
1043 mwifiex_sec_ioctl_encrypt_key(struct mwifiex_private *priv,
1044                               struct mwifiex_ds_encrypt_key *encrypt_key)
1045 {
1046         int status;
1047
1048         if (encrypt_key->is_wapi_key)
1049                 status = mwifiex_sec_ioctl_set_wapi_key(priv, encrypt_key);
1050         else if (encrypt_key->key_len > WLAN_KEY_LEN_WEP104)
1051                 status = mwifiex_sec_ioctl_set_wpa_key(priv, encrypt_key);
1052         else
1053                 status = mwifiex_sec_ioctl_set_wep_key(priv, encrypt_key);
1054         return status;
1055 }
1056
1057 /*
1058  * This function returns the driver version.
1059  */
1060 int
1061 mwifiex_drv_get_driver_version(struct mwifiex_adapter *adapter, char *version,
1062                                int max_len)
1063 {
1064         union {
1065                 __le32 l;
1066                 u8 c[4];
1067         } ver;
1068         char fw_ver[32];
1069
1070         ver.l = cpu_to_le32(adapter->fw_release_number);
1071         sprintf(fw_ver, "%u.%u.%u.p%u", ver.c[2], ver.c[1], ver.c[0], ver.c[3]);
1072
1073         snprintf(version, max_len, driver_version, fw_ver);
1074
1075         mwifiex_dbg(adapter, MSG, "info: MWIFIEX VERSION: %s\n", version);
1076
1077         return 0;
1078 }
1079
1080 /*
1081  * Sends IOCTL request to set encoding parameters.
1082  *
1083  * This function allocates the IOCTL request buffer, fills it
1084  * with requisite parameters and calls the IOCTL handler.
1085  */
1086 int mwifiex_set_encode(struct mwifiex_private *priv, struct key_params *kp,
1087                        const u8 *key, int key_len, u8 key_index,
1088                        const u8 *mac_addr, int disable)
1089 {
1090         struct mwifiex_ds_encrypt_key encrypt_key;
1091
1092         memset(&encrypt_key, 0, sizeof(struct mwifiex_ds_encrypt_key));
1093         encrypt_key.key_len = key_len;
1094         encrypt_key.key_index = key_index;
1095
1096         if (kp && kp->cipher == WLAN_CIPHER_SUITE_AES_CMAC)
1097                 encrypt_key.is_igtk_key = true;
1098
1099         if (!disable) {
1100                 if (key_len)
1101                         memcpy(encrypt_key.key_material, key, key_len);
1102                 else
1103                         encrypt_key.is_current_wep_key = true;
1104
1105                 if (mac_addr)
1106                         memcpy(encrypt_key.mac_addr, mac_addr, ETH_ALEN);
1107                 if (kp && kp->seq && kp->seq_len) {
1108                         memcpy(encrypt_key.pn, kp->seq, kp->seq_len);
1109                         encrypt_key.pn_len = kp->seq_len;
1110                         encrypt_key.is_rx_seq_valid = true;
1111                 }
1112         } else {
1113                 encrypt_key.key_disable = true;
1114                 if (mac_addr)
1115                         memcpy(encrypt_key.mac_addr, mac_addr, ETH_ALEN);
1116         }
1117
1118         return mwifiex_sec_ioctl_encrypt_key(priv, &encrypt_key);
1119 }
1120
1121 /*
1122  * Sends IOCTL request to get extended version.
1123  *
1124  * This function allocates the IOCTL request buffer, fills it
1125  * with requisite parameters and calls the IOCTL handler.
1126  */
1127 int
1128 mwifiex_get_ver_ext(struct mwifiex_private *priv)
1129 {
1130         struct mwifiex_ver_ext ver_ext;
1131
1132         memset(&ver_ext, 0, sizeof(struct host_cmd_ds_version_ext));
1133         if (mwifiex_send_cmd(priv, HostCmd_CMD_VERSION_EXT,
1134                              HostCmd_ACT_GEN_GET, 0, &ver_ext, true))
1135                 return -1;
1136
1137         return 0;
1138 }
1139
1140 int
1141 mwifiex_remain_on_chan_cfg(struct mwifiex_private *priv, u16 action,
1142                            struct ieee80211_channel *chan,
1143                            unsigned int duration)
1144 {
1145         struct host_cmd_ds_remain_on_chan roc_cfg;
1146         u8 sc;
1147
1148         memset(&roc_cfg, 0, sizeof(roc_cfg));
1149         roc_cfg.action = cpu_to_le16(action);
1150         if (action == HostCmd_ACT_GEN_SET) {
1151                 roc_cfg.band_cfg = chan->band;
1152                 sc = mwifiex_chan_type_to_sec_chan_offset(NL80211_CHAN_NO_HT);
1153                 roc_cfg.band_cfg |= (sc << 2);
1154
1155                 roc_cfg.channel =
1156                         ieee80211_frequency_to_channel(chan->center_freq);
1157                 roc_cfg.duration = cpu_to_le32(duration);
1158         }
1159         if (mwifiex_send_cmd(priv, HostCmd_CMD_REMAIN_ON_CHAN,
1160                              action, 0, &roc_cfg, true)) {
1161                 mwifiex_dbg(priv->adapter, ERROR,
1162                             "failed to remain on channel\n");
1163                 return -1;
1164         }
1165
1166         return roc_cfg.status;
1167 }
1168
1169 /*
1170  * Sends IOCTL request to get statistics information.
1171  *
1172  * This function allocates the IOCTL request buffer, fills it
1173  * with requisite parameters and calls the IOCTL handler.
1174  */
1175 int
1176 mwifiex_get_stats_info(struct mwifiex_private *priv,
1177                        struct mwifiex_ds_get_stats *log)
1178 {
1179         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_GET_LOG,
1180                                 HostCmd_ACT_GEN_GET, 0, log, true);
1181 }
1182
1183 /*
1184  * IOCTL request handler to read/write register.
1185  *
1186  * This function prepares the correct firmware command and
1187  * issues it.
1188  *
1189  * Access to the following registers are supported -
1190  *      - MAC
1191  *      - BBP
1192  *      - RF
1193  *      - PMIC
1194  *      - CAU
1195  */
1196 static int mwifiex_reg_mem_ioctl_reg_rw(struct mwifiex_private *priv,
1197                                         struct mwifiex_ds_reg_rw *reg_rw,
1198                                         u16 action)
1199 {
1200         u16 cmd_no;
1201
1202         switch (le32_to_cpu(reg_rw->type)) {
1203         case MWIFIEX_REG_MAC:
1204                 cmd_no = HostCmd_CMD_MAC_REG_ACCESS;
1205                 break;
1206         case MWIFIEX_REG_BBP:
1207                 cmd_no = HostCmd_CMD_BBP_REG_ACCESS;
1208                 break;
1209         case MWIFIEX_REG_RF:
1210                 cmd_no = HostCmd_CMD_RF_REG_ACCESS;
1211                 break;
1212         case MWIFIEX_REG_PMIC:
1213                 cmd_no = HostCmd_CMD_PMIC_REG_ACCESS;
1214                 break;
1215         case MWIFIEX_REG_CAU:
1216                 cmd_no = HostCmd_CMD_CAU_REG_ACCESS;
1217                 break;
1218         default:
1219                 return -1;
1220         }
1221
1222         return mwifiex_send_cmd(priv, cmd_no, action, 0, reg_rw, true);
1223 }
1224
1225 /*
1226  * Sends IOCTL request to write to a register.
1227  *
1228  * This function allocates the IOCTL request buffer, fills it
1229  * with requisite parameters and calls the IOCTL handler.
1230  */
1231 int
1232 mwifiex_reg_write(struct mwifiex_private *priv, u32 reg_type,
1233                   u32 reg_offset, u32 reg_value)
1234 {
1235         struct mwifiex_ds_reg_rw reg_rw;
1236
1237         reg_rw.type = cpu_to_le32(reg_type);
1238         reg_rw.offset = cpu_to_le32(reg_offset);
1239         reg_rw.value = cpu_to_le32(reg_value);
1240
1241         return mwifiex_reg_mem_ioctl_reg_rw(priv, &reg_rw, HostCmd_ACT_GEN_SET);
1242 }
1243
1244 /*
1245  * Sends IOCTL request to read from a register.
1246  *
1247  * This function allocates the IOCTL request buffer, fills it
1248  * with requisite parameters and calls the IOCTL handler.
1249  */
1250 int
1251 mwifiex_reg_read(struct mwifiex_private *priv, u32 reg_type,
1252                  u32 reg_offset, u32 *value)
1253 {
1254         int ret;
1255         struct mwifiex_ds_reg_rw reg_rw;
1256
1257         reg_rw.type = cpu_to_le32(reg_type);
1258         reg_rw.offset = cpu_to_le32(reg_offset);
1259         ret = mwifiex_reg_mem_ioctl_reg_rw(priv, &reg_rw, HostCmd_ACT_GEN_GET);
1260
1261         if (ret)
1262                 goto done;
1263
1264         *value = le32_to_cpu(reg_rw.value);
1265
1266 done:
1267         return ret;
1268 }
1269
1270 /*
1271  * Sends IOCTL request to read from EEPROM.
1272  *
1273  * This function allocates the IOCTL request buffer, fills it
1274  * with requisite parameters and calls the IOCTL handler.
1275  */
1276 int
1277 mwifiex_eeprom_read(struct mwifiex_private *priv, u16 offset, u16 bytes,
1278                     u8 *value)
1279 {
1280         int ret;
1281         struct mwifiex_ds_read_eeprom rd_eeprom;
1282
1283         rd_eeprom.offset = cpu_to_le16((u16) offset);
1284         rd_eeprom.byte_count = cpu_to_le16((u16) bytes);
1285
1286         /* Send request to firmware */
1287         ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_EEPROM_ACCESS,
1288                                HostCmd_ACT_GEN_GET, 0, &rd_eeprom, true);
1289
1290         if (!ret)
1291                 memcpy(value, rd_eeprom.value, MAX_EEPROM_DATA);
1292         return ret;
1293 }
1294
1295 /*
1296  * This function sets a generic IE. In addition to generic IE, it can
1297  * also handle WPA, WPA2 and WAPI IEs.
1298  */
1299 static int
1300 mwifiex_set_gen_ie_helper(struct mwifiex_private *priv, u8 *ie_data_ptr,
1301                           u16 ie_len)
1302 {
1303         int ret = 0;
1304         struct ieee_types_vendor_header *pvendor_ie;
1305         const u8 wpa_oui[] = { 0x00, 0x50, 0xf2, 0x01 };
1306         const u8 wps_oui[] = { 0x00, 0x50, 0xf2, 0x04 };
1307
1308         /* If the passed length is zero, reset the buffer */
1309         if (!ie_len) {
1310                 priv->gen_ie_buf_len = 0;
1311                 priv->wps.session_enable = false;
1312
1313                 return 0;
1314         } else if (!ie_data_ptr) {
1315                 return -1;
1316         }
1317         pvendor_ie = (struct ieee_types_vendor_header *) ie_data_ptr;
1318         /* Test to see if it is a WPA IE, if not, then it is a gen IE */
1319         if (((pvendor_ie->element_id == WLAN_EID_VENDOR_SPECIFIC) &&
1320              (!memcmp(&pvendor_ie->oui, wpa_oui, sizeof(wpa_oui)))) ||
1321             (pvendor_ie->element_id == WLAN_EID_RSN)) {
1322
1323                 /* IE is a WPA/WPA2 IE so call set_wpa function */
1324                 ret = mwifiex_set_wpa_ie_helper(priv, ie_data_ptr, ie_len);
1325                 priv->wps.session_enable = false;
1326
1327                 return ret;
1328         } else if (pvendor_ie->element_id == WLAN_EID_BSS_AC_ACCESS_DELAY) {
1329                 /* IE is a WAPI IE so call set_wapi function */
1330                 ret = mwifiex_set_wapi_ie(priv, ie_data_ptr, ie_len);
1331
1332                 return ret;
1333         }
1334         /*
1335          * Verify that the passed length is not larger than the
1336          * available space remaining in the buffer
1337          */
1338         if (ie_len < (sizeof(priv->gen_ie_buf) - priv->gen_ie_buf_len)) {
1339
1340                 /* Test to see if it is a WPS IE, if so, enable
1341                  * wps session flag
1342                  */
1343                 pvendor_ie = (struct ieee_types_vendor_header *) ie_data_ptr;
1344                 if ((pvendor_ie->element_id == WLAN_EID_VENDOR_SPECIFIC) &&
1345                     (!memcmp(&pvendor_ie->oui, wps_oui, sizeof(wps_oui)))) {
1346                         priv->wps.session_enable = true;
1347                         mwifiex_dbg(priv->adapter, INFO,
1348                                     "info: WPS Session Enabled.\n");
1349                         ret = mwifiex_set_wps_ie(priv, ie_data_ptr, ie_len);
1350                 }
1351
1352                 /* Append the passed data to the end of the
1353                    genIeBuffer */
1354                 memcpy(priv->gen_ie_buf + priv->gen_ie_buf_len, ie_data_ptr,
1355                        ie_len);
1356                 /* Increment the stored buffer length by the
1357                    size passed */
1358                 priv->gen_ie_buf_len += ie_len;
1359         } else {
1360                 /* Passed data does not fit in the remaining
1361                    buffer space */
1362                 ret = -1;
1363         }
1364
1365         /* Return 0, or -1 for error case */
1366         return ret;
1367 }
1368
1369 /*
1370  * IOCTL request handler to set/get generic IE.
1371  *
1372  * In addition to various generic IEs, this function can also be
1373  * used to set the ARP filter.
1374  */
1375 static int mwifiex_misc_ioctl_gen_ie(struct mwifiex_private *priv,
1376                                      struct mwifiex_ds_misc_gen_ie *gen_ie,
1377                                      u16 action)
1378 {
1379         struct mwifiex_adapter *adapter = priv->adapter;
1380
1381         switch (gen_ie->type) {
1382         case MWIFIEX_IE_TYPE_GEN_IE:
1383                 if (action == HostCmd_ACT_GEN_GET) {
1384                         gen_ie->len = priv->wpa_ie_len;
1385                         memcpy(gen_ie->ie_data, priv->wpa_ie, gen_ie->len);
1386                 } else {
1387                         mwifiex_set_gen_ie_helper(priv, gen_ie->ie_data,
1388                                                   (u16) gen_ie->len);
1389                 }
1390                 break;
1391         case MWIFIEX_IE_TYPE_ARP_FILTER:
1392                 memset(adapter->arp_filter, 0, sizeof(adapter->arp_filter));
1393                 if (gen_ie->len > ARP_FILTER_MAX_BUF_SIZE) {
1394                         adapter->arp_filter_size = 0;
1395                         mwifiex_dbg(adapter, ERROR,
1396                                     "invalid ARP filter size\n");
1397                         return -1;
1398                 } else {
1399                         memcpy(adapter->arp_filter, gen_ie->ie_data,
1400                                gen_ie->len);
1401                         adapter->arp_filter_size = gen_ie->len;
1402                 }
1403                 break;
1404         default:
1405                 mwifiex_dbg(adapter, ERROR, "invalid IE type\n");
1406                 return -1;
1407         }
1408         return 0;
1409 }
1410
1411 /*
1412  * Sends IOCTL request to set a generic IE.
1413  *
1414  * This function allocates the IOCTL request buffer, fills it
1415  * with requisite parameters and calls the IOCTL handler.
1416  */
1417 int
1418 mwifiex_set_gen_ie(struct mwifiex_private *priv, const u8 *ie, int ie_len)
1419 {
1420         struct mwifiex_ds_misc_gen_ie gen_ie;
1421
1422         if (ie_len > IEEE_MAX_IE_SIZE)
1423                 return -EFAULT;
1424
1425         gen_ie.type = MWIFIEX_IE_TYPE_GEN_IE;
1426         gen_ie.len = ie_len;
1427         memcpy(gen_ie.ie_data, ie, ie_len);
1428         if (mwifiex_misc_ioctl_gen_ie(priv, &gen_ie, HostCmd_ACT_GEN_SET))
1429                 return -EFAULT;
1430
1431         return 0;
1432 }