drivers/net/wireless/marvell/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         memcpy(priv->adapter->country_code, &country_ie[2], 2);
 233
 234         domain_info->country_code[0] = country_ie[2];
 235         domain_info->country_code[1] = country_ie[3];
 236         domain_info->country_code[2] = ' ';
 237
 238         country_ie_len -= IEEE80211_COUNTRY_STRING_LEN;
 239
 240         domain_info->no_of_triplet =
 241                 country_ie_len / sizeof(struct ieee80211_country_ie_triplet);
 242
 243         memcpy((u8 *)domain_info->triplet,
 244                &country_ie[2] + IEEE80211_COUNTRY_STRING_LEN, country_ie_len);
 245
 246         rcu_read_unlock();
 247
 248         if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
 249                              HostCmd_ACT_GEN_SET, 0, NULL, false)) {
 250                 mwifiex_dbg(priv->adapter, ERROR,
 251                             "11D: setting domain info in FW fail\n");
 252                 return -1;
 253         }
 254
 255         mwifiex_dnld_txpwr_table(priv);
 256
 257         return 0;
 258 }
 259
 260 /*
 261  * In Ad-Hoc mode, the IBSS is created if not found in scan list.
 262  * In both Ad-Hoc and infra mode, an deauthentication is performed
 263  * first.
 264  */
 265 int mwifiex_bss_start(struct mwifiex_private *priv, struct cfg80211_bss *bss,
 266                       struct cfg80211_ssid *req_ssid)
 267 {
 268         int ret;
 269         struct mwifiex_adapter *adapter = priv->adapter;
 270         struct mwifiex_bssdescriptor *bss_desc = NULL;
 271
 272         priv->scan_block = false;
 273
 274         if (bss) {
 275                 if (adapter->region_code == 0x00)
 276                         mwifiex_process_country_ie(priv, bss);
 277
 278                 /* Allocate and fill new bss descriptor */
 279                 bss_desc = kzalloc(sizeof(struct mwifiex_bssdescriptor),
 280                                    GFP_KERNEL);
 281                 if (!bss_desc)
 282                         return -ENOMEM;
 283
 284                 ret = mwifiex_fill_new_bss_desc(priv, bss, bss_desc);
 285                 if (ret)
 286                         goto done;
 287         }
 288
 289         if (priv->bss_mode == NL80211_IFTYPE_STATION ||
 290             priv->bss_mode == NL80211_IFTYPE_P2P_CLIENT) {
 291                 u8 config_bands;
 292
 293                 if (!bss_desc)
 294                         return -1;
 295
 296                 if (mwifiex_band_to_radio_type(bss_desc->bss_band) ==
 297                                                 HostCmd_SCAN_RADIO_TYPE_BG) {
 298                         config_bands = BAND_B | BAND_G | BAND_GN;
 299                 } else {
 300                         config_bands = BAND_A | BAND_AN;
 301                         if (adapter->fw_bands & BAND_AAC)
 302                                 config_bands |= BAND_AAC;
 303                 }
 304
 305                 if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands))
 306                         adapter->config_bands = config_bands;
 307
 308                 ret = mwifiex_check_network_compatibility(priv, bss_desc);
 309                 if (ret)
 310                         goto done;
 311
 312                 if (mwifiex_11h_get_csa_closed_channel(priv) ==
 313                                                         (u8)bss_desc->channel) {
 314                         mwifiex_dbg(adapter, ERROR,
 315                                     "Attempt to reconnect on csa closed chan(%d)\n",
 316                                     bss_desc->channel);
 317                         goto done;
 318                 }
 319
 320                 mwifiex_dbg(adapter, INFO,
 321                             "info: SSID found in scan list ...\t"
 322                             "associating...\n");
 323
 324                 mwifiex_stop_net_dev_queue(priv->netdev, adapter);
 325                 if (netif_carrier_ok(priv->netdev))
 326                         netif_carrier_off(priv->netdev);
 327
 328                 /* Clear any past association response stored for
 329                  * application retrieval */
 330                 priv->assoc_rsp_size = 0;
 331                 ret = mwifiex_associate(priv, bss_desc);
 332
 333                 /* If auth type is auto and association fails using open mode,
 334                  * try to connect using shared mode */
 335                 if (ret == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG &&
 336                     priv->sec_info.is_authtype_auto &&
 337                     priv->sec_info.wep_enabled) {
 338                         priv->sec_info.authentication_mode =
 339                                                 NL80211_AUTHTYPE_SHARED_KEY;
 340                         ret = mwifiex_associate(priv, bss_desc);
 341                 }
 342
 343                 if (bss)
 344                         cfg80211_put_bss(priv->adapter->wiphy, bss);
 345         } else {
 346                 /* Adhoc mode */
 347                 /* If the requested SSID matches current SSID, return */
 348                 if (bss_desc && bss_desc->ssid.ssid_len &&
 349                     (!mwifiex_ssid_cmp(&priv->curr_bss_params.bss_descriptor.
 350                                        ssid, &bss_desc->ssid))) {
 351                         ret = 0;
 352                         goto done;
 353                 }
 354
 355                 priv->adhoc_is_link_sensed = false;
 356
 357                 ret = mwifiex_check_network_compatibility(priv, bss_desc);
 358
 359                 mwifiex_stop_net_dev_queue(priv->netdev, adapter);
 360                 if (netif_carrier_ok(priv->netdev))
 361                         netif_carrier_off(priv->netdev);
 362
 363                 if (!ret) {
 364                         mwifiex_dbg(adapter, INFO,
 365                                     "info: network found in scan\t"
 366                                     " list. Joining...\n");
 367                         ret = mwifiex_adhoc_join(priv, bss_desc);
 368                         if (bss)
 369                                 cfg80211_put_bss(priv->adapter->wiphy, bss);
 370                 } else {
 371                         mwifiex_dbg(adapter, INFO,
 372                                     "info: Network not found in\t"
 373                                     "the list, creating adhoc with ssid = %s\n",
 374                                     req_ssid->ssid);
 375                         ret = mwifiex_adhoc_start(priv, req_ssid);
 376                 }
 377         }
 378
 379 done:
 380         /* beacon_ie buffer was allocated in function
 381          * mwifiex_fill_new_bss_desc(). Free it now.
 382          */
 383         if (bss_desc)
 384                 kfree(bss_desc->beacon_buf);
 385         kfree(bss_desc);
 386         return ret;
 387 }
 388
 389 /*
 390  * IOCTL request handler to set host sleep configuration.
 391  *
 392  * This function prepares the correct firmware command and
 393  * issues it.
 394  */
 395 int mwifiex_set_hs_params(struct mwifiex_private *priv, u16 action,
 396                           int cmd_type, struct mwifiex_ds_hs_cfg *hs_cfg)
 397
 398 {
 399         struct mwifiex_adapter *adapter = priv->adapter;
 400         int status = 0;
 401         u32 prev_cond = 0;
 402
 403         if (!hs_cfg)
 404                 return -ENOMEM;
 405
 406         switch (action) {
 407         case HostCmd_ACT_GEN_SET:
 408                 if (adapter->pps_uapsd_mode) {
 409                         mwifiex_dbg(adapter, INFO,
 410                                     "info: Host Sleep IOCTL\t"
 411                                     "is blocked in UAPSD/PPS mode\n");
 412                         status = -1;
 413                         break;
 414                 }
 415                 if (hs_cfg->is_invoke_hostcmd) {
 416                         if (hs_cfg->conditions == HS_CFG_CANCEL) {
 417                                 if (!adapter->is_hs_configured)
 418                                         /* Already cancelled */
 419                                         break;
 420                                 /* Save previous condition */
 421                                 prev_cond = le32_to_cpu(adapter->hs_cfg
 422                                                         .conditions);
 423                                 adapter->hs_cfg.conditions =
 424                                                 cpu_to_le32(hs_cfg->conditions);
 425                         } else if (hs_cfg->conditions) {
 426                                 adapter->hs_cfg.conditions =
 427                                                 cpu_to_le32(hs_cfg->conditions);
 428                                 adapter->hs_cfg.gpio = (u8)hs_cfg->gpio;
 429                                 if (hs_cfg->gap)
 430                                         adapter->hs_cfg.gap = (u8)hs_cfg->gap;
 431                         } else if (adapter->hs_cfg.conditions ==
 432                                    cpu_to_le32(HS_CFG_CANCEL)) {
 433                                 /* Return failure if no parameters for HS
 434                                    enable */
 435                                 status = -1;
 436                                 break;
 437                         }
 438
 439                         status = mwifiex_send_cmd(priv,
 440                                                   HostCmd_CMD_802_11_HS_CFG_ENH,
 441                                                   HostCmd_ACT_GEN_SET, 0,
 442                                                   &adapter->hs_cfg,
 443                                                   cmd_type == MWIFIEX_SYNC_CMD);
 444
 445                         if (hs_cfg->conditions == HS_CFG_CANCEL)
 446                                 /* Restore previous condition */
 447                                 adapter->hs_cfg.conditions =
 448                                                 cpu_to_le32(prev_cond);
 449                 } else {
 450                         adapter->hs_cfg.conditions =
 451                                                 cpu_to_le32(hs_cfg->conditions);
 452                         adapter->hs_cfg.gpio = (u8)hs_cfg->gpio;
 453                         adapter->hs_cfg.gap = (u8)hs_cfg->gap;
 454                 }
 455                 break;
 456         case HostCmd_ACT_GEN_GET:
 457                 hs_cfg->conditions = le32_to_cpu(adapter->hs_cfg.conditions);
 458                 hs_cfg->gpio = adapter->hs_cfg.gpio;
 459                 hs_cfg->gap = adapter->hs_cfg.gap;
 460                 break;
 461         default:
 462                 status = -1;
 463                 break;
 464         }
 465
 466         return status;
 467 }
 468
 469 /*
 470  * Sends IOCTL request to cancel the existing Host Sleep configuration.
 471  *
 472  * This function allocates the IOCTL request buffer, fills it
 473  * with requisite parameters and calls the IOCTL handler.
 474  */
 475 int mwifiex_cancel_hs(struct mwifiex_private *priv, int cmd_type)
 476 {
 477         struct mwifiex_ds_hs_cfg hscfg;
 478
 479         hscfg.conditions = HS_CFG_CANCEL;
 480         hscfg.is_invoke_hostcmd = true;
 481
 482         return mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_SET,
 483                                     cmd_type, &hscfg);
 484 }
 485 EXPORT_SYMBOL_GPL(mwifiex_cancel_hs);
 486
 487 /*
 488  * Sends IOCTL request to cancel the existing Host Sleep configuration.
 489  *
 490  * This function allocates the IOCTL request buffer, fills it
 491  * with requisite parameters and calls the IOCTL handler.
 492  */
 493 int mwifiex_enable_hs(struct mwifiex_adapter *adapter)
 494 {
 495         struct mwifiex_ds_hs_cfg hscfg;
 496         struct mwifiex_private *priv;
 497         int i;
 498
 499         if (disconnect_on_suspend) {
 500                 for (i = 0; i < adapter->priv_num; i++) {
 501                         priv = adapter->priv[i];
 502                         if (priv)
 503                                 mwifiex_deauthenticate(priv, NULL);
 504                 }
 505         }
 506
 507         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
 508
 509         if (priv && priv->sched_scanning) {
 510 #ifdef CONFIG_PM
 511                 if (!priv->wdev.wiphy->wowlan_config->nd_config) {
 512 #endif
 513                         mwifiex_dbg(adapter, CMD, "aborting bgscan!\n");
 514                         mwifiex_stop_bg_scan(priv);
 515                         cfg80211_sched_scan_stopped(priv->wdev.wiphy);
 516 #ifdef CONFIG_PM
 517                 }
 518 #endif
 519         }
 520
 521         if (adapter->hs_activated) {
 522                 mwifiex_dbg(adapter, CMD,
 523                             "cmd: HS Already activated\n");
 524                 return true;
 525         }
 526
 527         adapter->hs_activate_wait_q_woken = false;
 528
 529         memset(&hscfg, 0, sizeof(struct mwifiex_ds_hs_cfg));
 530         hscfg.is_invoke_hostcmd = true;
 531
 532         adapter->hs_enabling = true;
 533         mwifiex_cancel_all_pending_cmd(adapter);
 534
 535         if (mwifiex_set_hs_params(mwifiex_get_priv(adapter,
 536                                                    MWIFIEX_BSS_ROLE_STA),
 537                                   HostCmd_ACT_GEN_SET, MWIFIEX_SYNC_CMD,
 538                                   &hscfg)) {
 539                 mwifiex_dbg(adapter, ERROR,
 540                             "IOCTL request HS enable failed\n");
 541                 return false;
 542         }
 543
 544         if (wait_event_interruptible_timeout(adapter->hs_activate_wait_q,
 545                                              adapter->hs_activate_wait_q_woken,
 546                                              (10 * HZ)) <= 0) {
 547                 mwifiex_dbg(adapter, ERROR,
 548                             "hs_activate_wait_q terminated\n");
 549                 return false;
 550         }
 551
 552         return true;
 553 }
 554 EXPORT_SYMBOL_GPL(mwifiex_enable_hs);
 555
 556 /*
 557  * IOCTL request handler to get BSS information.
 558  *
 559  * This function collates the information from different driver structures
 560  * to send to the user.
 561  */
 562 int mwifiex_get_bss_info(struct mwifiex_private *priv,
 563                          struct mwifiex_bss_info *info)
 564 {
 565         struct mwifiex_adapter *adapter = priv->adapter;
 566         struct mwifiex_bssdescriptor *bss_desc;
 567
 568         if (!info)
 569                 return -1;
 570
 571         bss_desc = &priv->curr_bss_params.bss_descriptor;
 572
 573         info->bss_mode = priv->bss_mode;
 574
 575         memcpy(&info->ssid, &bss_desc->ssid, sizeof(struct cfg80211_ssid));
 576
 577         memcpy(&info->bssid, &bss_desc->mac_address, ETH_ALEN);
 578
 579         info->bss_chan = bss_desc->channel;
 580
 581         memcpy(info->country_code, adapter->country_code,
 582                IEEE80211_COUNTRY_STRING_LEN);
 583
 584         info->media_connected = priv->media_connected;
 585
 586         info->max_power_level = priv->max_tx_power_level;
 587         info->min_power_level = priv->min_tx_power_level;
 588
 589         info->adhoc_state = priv->adhoc_state;
 590
 591         info->bcn_nf_last = priv->bcn_nf_last;
 592
 593         if (priv->sec_info.wep_enabled)
 594                 info->wep_status = true;
 595         else
 596                 info->wep_status = false;
 597
 598         info->is_hs_configured = adapter->is_hs_configured;
 599         info->is_deep_sleep = adapter->is_deep_sleep;
 600
 601         return 0;
 602 }
 603
 604 /*
 605  * The function disables auto deep sleep mode.
 606  */
 607 int mwifiex_disable_auto_ds(struct mwifiex_private *priv)
 608 {
 609         struct mwifiex_ds_auto_ds auto_ds;
 610
 611         auto_ds.auto_ds = DEEP_SLEEP_OFF;
 612
 613         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_PS_MODE_ENH,
 614                                 DIS_AUTO_PS, BITMAP_AUTO_DS, &auto_ds, true);
 615 }
 616 EXPORT_SYMBOL_GPL(mwifiex_disable_auto_ds);
 617
 618 /*
 619  * Sends IOCTL request to get the data rate.
 620  *
 621  * This function allocates the IOCTL request buffer, fills it
 622  * with requisite parameters and calls the IOCTL handler.
 623  */
 624 int mwifiex_drv_get_data_rate(struct mwifiex_private *priv, u32 *rate)
 625 {
 626         int ret;
 627
 628         ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_TX_RATE_QUERY,
 629                                HostCmd_ACT_GEN_GET, 0, NULL, true);
 630
 631         if (!ret) {
 632                 if (priv->is_data_rate_auto)
 633                         *rate = mwifiex_index_to_data_rate(priv, priv->tx_rate,
 634                                                            priv->tx_htinfo);
 635                 else
 636                         *rate = priv->data_rate;
 637         }
 638
 639         return ret;
 640 }
 641
 642 /*
 643  * IOCTL request handler to set tx power configuration.
 644  *
 645  * This function prepares the correct firmware command and
 646  * issues it.
 647  *
 648  * For non-auto power mode, all the following power groups are set -
 649  *      - Modulation class HR/DSSS
 650  *      - Modulation class OFDM
 651  *      - Modulation class HTBW20
 652  *      - Modulation class HTBW40
 653  */
 654 int mwifiex_set_tx_power(struct mwifiex_private *priv,
 655                          struct mwifiex_power_cfg *power_cfg)
 656 {
 657         int ret;
 658         struct host_cmd_ds_txpwr_cfg *txp_cfg;
 659         struct mwifiex_types_power_group *pg_tlv;
 660         struct mwifiex_power_group *pg;
 661         u8 *buf;
 662         u16 dbm = 0;
 663
 664         if (!power_cfg->is_power_auto) {
 665                 dbm = (u16) power_cfg->power_level;
 666                 if ((dbm < priv->min_tx_power_level) ||
 667                     (dbm > priv->max_tx_power_level)) {
 668                         mwifiex_dbg(priv->adapter, ERROR,
 669                                     "txpower value %d dBm\t"
 670                                     "is out of range (%d dBm-%d dBm)\n",
 671                                     dbm, priv->min_tx_power_level,
 672                                     priv->max_tx_power_level);
 673                         return -1;
 674                 }
 675         }
 676         buf = kzalloc(MWIFIEX_SIZE_OF_CMD_BUFFER, GFP_KERNEL);
 677         if (!buf)
 678                 return -ENOMEM;
 679
 680         txp_cfg = (struct host_cmd_ds_txpwr_cfg *) buf;
 681         txp_cfg->action = cpu_to_le16(HostCmd_ACT_GEN_SET);
 682         if (!power_cfg->is_power_auto) {
 683                 txp_cfg->mode = cpu_to_le32(1);
 684                 pg_tlv = (struct mwifiex_types_power_group *)
 685                          (buf + sizeof(struct host_cmd_ds_txpwr_cfg));
 686                 pg_tlv->type = cpu_to_le16(TLV_TYPE_POWER_GROUP);
 687                 pg_tlv->length =
 688                         cpu_to_le16(4 * sizeof(struct mwifiex_power_group));
 689                 pg = (struct mwifiex_power_group *)
 690                      (buf + sizeof(struct host_cmd_ds_txpwr_cfg)
 691                       + sizeof(struct mwifiex_types_power_group));
 692                 /* Power group for modulation class HR/DSSS */
 693                 pg->first_rate_code = 0x00;
 694                 pg->last_rate_code = 0x03;
 695                 pg->modulation_class = MOD_CLASS_HR_DSSS;
 696                 pg->power_step = 0;
 697                 pg->power_min = (s8) dbm;
 698                 pg->power_max = (s8) dbm;
 699                 pg++;
 700                 /* Power group for modulation class OFDM */
 701                 pg->first_rate_code = 0x00;
 702                 pg->last_rate_code = 0x07;
 703                 pg->modulation_class = MOD_CLASS_OFDM;
 704                 pg->power_step = 0;
 705                 pg->power_min = (s8) dbm;
 706                 pg->power_max = (s8) dbm;
 707                 pg++;
 708                 /* Power group for modulation class HTBW20 */
 709                 pg->first_rate_code = 0x00;
 710                 pg->last_rate_code = 0x20;
 711                 pg->modulation_class = MOD_CLASS_HT;
 712                 pg->power_step = 0;
 713                 pg->power_min = (s8) dbm;
 714                 pg->power_max = (s8) dbm;
 715                 pg->ht_bandwidth = HT_BW_20;
 716                 pg++;
 717                 /* Power group for modulation class HTBW40 */
 718                 pg->first_rate_code = 0x00;
 719                 pg->last_rate_code = 0x20;
 720                 pg->modulation_class = MOD_CLASS_HT;
 721                 pg->power_step = 0;
 722                 pg->power_min = (s8) dbm;
 723                 pg->power_max = (s8) dbm;
 724                 pg->ht_bandwidth = HT_BW_40;
 725         }
 726         ret = mwifiex_send_cmd(priv, HostCmd_CMD_TXPWR_CFG,
 727                                HostCmd_ACT_GEN_SET, 0, buf, true);
 728
 729         kfree(buf);
 730         return ret;
 731 }
 732
 733 /*
 734  * IOCTL request handler to get power save mode.
 735  *
 736  * This function prepares the correct firmware command and
 737  * issues it.
 738  */
 739 int mwifiex_drv_set_power(struct mwifiex_private *priv, u32 *ps_mode)
 740 {
 741         int ret;
 742         struct mwifiex_adapter *adapter = priv->adapter;
 743         u16 sub_cmd;
 744
 745         if (*ps_mode)
 746                 adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_PSP;
 747         else
 748                 adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_CAM;
 749         sub_cmd = (*ps_mode) ? EN_AUTO_PS : DIS_AUTO_PS;
 750         ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_PS_MODE_ENH,
 751                                sub_cmd, BITMAP_STA_PS, NULL, true);
 752         if ((!ret) && (sub_cmd == DIS_AUTO_PS))
 753                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_PS_MODE_ENH,
 754                                        GET_PS, 0, NULL, false);
 755
 756         return ret;
 757 }
 758
 759 /*
 760  * IOCTL request handler to set/reset WPA IE.
 761  *
 762  * The supplied WPA IE is treated as a opaque buffer. Only the first field
 763  * is checked to determine WPA version. If buffer length is zero, the existing
 764  * WPA IE is reset.
 765  */
 766 static int mwifiex_set_wpa_ie_helper(struct mwifiex_private *priv,
 767                                      u8 *ie_data_ptr, u16 ie_len)
 768 {
 769         if (ie_len) {
 770                 if (ie_len > sizeof(priv->wpa_ie)) {
 771                         mwifiex_dbg(priv->adapter, ERROR,
 772                                     "failed to copy WPA IE, too big\n");
 773                         return -1;
 774                 }
 775                 memcpy(priv->wpa_ie, ie_data_ptr, ie_len);
 776                 priv->wpa_ie_len = ie_len;
 777                 mwifiex_dbg(priv->adapter, CMD,
 778                             "cmd: Set Wpa_ie_len=%d IE=%#x\n",
 779                             priv->wpa_ie_len, priv->wpa_ie[0]);
 780
 781                 if (priv->wpa_ie[0] == WLAN_EID_VENDOR_SPECIFIC) {
 782                         priv->sec_info.wpa_enabled = true;
 783                 } else if (priv->wpa_ie[0] == WLAN_EID_RSN) {
 784                         priv->sec_info.wpa2_enabled = true;
 785                 } else {
 786                         priv->sec_info.wpa_enabled = false;
 787                         priv->sec_info.wpa2_enabled = false;
 788                 }
 789         } else {
 790                 memset(priv->wpa_ie, 0, sizeof(priv->wpa_ie));
 791                 priv->wpa_ie_len = 0;
 792                 mwifiex_dbg(priv->adapter, INFO,
 793                             "info: reset wpa_ie_len=%d IE=%#x\n",
 794                             priv->wpa_ie_len, priv->wpa_ie[0]);
 795                 priv->sec_info.wpa_enabled = false;
 796                 priv->sec_info.wpa2_enabled = false;
 797         }
 798
 799         return 0;
 800 }
 801
 802 /*
 803  * IOCTL request handler to set/reset WAPI IE.
 804  *
 805  * The supplied WAPI IE is treated as a opaque buffer. Only the first field
 806  * is checked to internally enable WAPI. If buffer length is zero, the existing
 807  * WAPI IE is reset.
 808  */
 809 static int mwifiex_set_wapi_ie(struct mwifiex_private *priv,
 810                                u8 *ie_data_ptr, u16 ie_len)
 811 {
 812         if (ie_len) {
 813                 if (ie_len > sizeof(priv->wapi_ie)) {
 814                         mwifiex_dbg(priv->adapter, ERROR,
 815                                     "info: failed to copy WAPI IE, too big\n");
 816                         return -1;
 817                 }
 818                 memcpy(priv->wapi_ie, ie_data_ptr, ie_len);
 819                 priv->wapi_ie_len = ie_len;
 820                 mwifiex_dbg(priv->adapter, CMD,
 821                             "cmd: Set wapi_ie_len=%d IE=%#x\n",
 822                             priv->wapi_ie_len, priv->wapi_ie[0]);
 823
 824                 if (priv->wapi_ie[0] == WLAN_EID_BSS_AC_ACCESS_DELAY)
 825                         priv->sec_info.wapi_enabled = true;
 826         } else {
 827                 memset(priv->wapi_ie, 0, sizeof(priv->wapi_ie));
 828                 priv->wapi_ie_len = ie_len;
 829                 mwifiex_dbg(priv->adapter, INFO,
 830                             "info: Reset wapi_ie_len=%d IE=%#x\n",
 831                             priv->wapi_ie_len, priv->wapi_ie[0]);
 832                 priv->sec_info.wapi_enabled = false;
 833         }
 834         return 0;
 835 }
 836
 837 /*
 838  * IOCTL request handler to set/reset WPS IE.
 839  *
 840  * The supplied WPS IE is treated as a opaque buffer. Only the first field
 841  * is checked to internally enable WPS. If buffer length is zero, the existing
 842  * WPS IE is reset.
 843  */
 844 static int mwifiex_set_wps_ie(struct mwifiex_private *priv,
 845                                u8 *ie_data_ptr, u16 ie_len)
 846 {
 847         if (ie_len) {
 848                 if (ie_len > MWIFIEX_MAX_VSIE_LEN) {
 849                         mwifiex_dbg(priv->adapter, ERROR,
 850                                     "info: failed to copy WPS IE, too big\n");
 851                         return -1;
 852                 }
 853
 854                 priv->wps_ie = kzalloc(MWIFIEX_MAX_VSIE_LEN, GFP_KERNEL);
 855                 if (!priv->wps_ie)
 856                         return -ENOMEM;
 857
 858                 memcpy(priv->wps_ie, ie_data_ptr, ie_len);
 859                 priv->wps_ie_len = ie_len;
 860                 mwifiex_dbg(priv->adapter, CMD,
 861                             "cmd: Set wps_ie_len=%d IE=%#x\n",
 862                             priv->wps_ie_len, priv->wps_ie[0]);
 863         } else {
 864                 kfree(priv->wps_ie);
 865                 priv->wps_ie_len = ie_len;
 866                 mwifiex_dbg(priv->adapter, INFO,
 867                             "info: Reset wps_ie_len=%d\n", priv->wps_ie_len);
 868         }
 869         return 0;
 870 }
 871
 872 /*
 873  * IOCTL request handler to set WAPI key.
 874  *
 875  * This function prepares the correct firmware command and
 876  * issues it.
 877  */
 878 static int mwifiex_sec_ioctl_set_wapi_key(struct mwifiex_private *priv,
 879                                struct mwifiex_ds_encrypt_key *encrypt_key)
 880 {
 881
 882         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
 883                                 HostCmd_ACT_GEN_SET, KEY_INFO_ENABLED,
 884                                 encrypt_key, true);
 885 }
 886
 887 /*
 888  * IOCTL request handler to set WEP network key.
 889  *
 890  * This function prepares the correct firmware command and
 891  * issues it, after validation checks.
 892  */
 893 static int mwifiex_sec_ioctl_set_wep_key(struct mwifiex_private *priv,
 894                               struct mwifiex_ds_encrypt_key *encrypt_key)
 895 {
 896         struct mwifiex_adapter *adapter = priv->adapter;
 897         int ret;
 898         struct mwifiex_wep_key *wep_key;
 899         int index;
 900
 901         if (priv->wep_key_curr_index >= NUM_WEP_KEYS)
 902                 priv->wep_key_curr_index = 0;
 903         wep_key = &priv->wep_key[priv->wep_key_curr_index];
 904         index = encrypt_key->key_index;
 905         if (encrypt_key->key_disable) {
 906                 priv->sec_info.wep_enabled = 0;
 907         } else if (!encrypt_key->key_len) {
 908                 /* Copy the required key as the current key */
 909                 wep_key = &priv->wep_key[index];
 910                 if (!wep_key->key_length) {
 911                         mwifiex_dbg(adapter, ERROR,
 912                                     "key not set, so cannot enable it\n");
 913                         return -1;
 914                 }
 915
 916                 if (adapter->key_api_major_ver == KEY_API_VER_MAJOR_V2) {
 917                         memcpy(encrypt_key->key_material,
 918                                wep_key->key_material, wep_key->key_length);
 919                         encrypt_key->key_len = wep_key->key_length;
 920                 }
 921
 922                 priv->wep_key_curr_index = (u16) index;
 923                 priv->sec_info.wep_enabled = 1;
 924         } else {
 925                 wep_key = &priv->wep_key[index];
 926                 memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
 927                 /* Copy the key in the driver */
 928                 memcpy(wep_key->key_material,
 929                        encrypt_key->key_material,
 930                        encrypt_key->key_len);
 931                 wep_key->key_index = index;
 932                 wep_key->key_length = encrypt_key->key_len;
 933                 priv->sec_info.wep_enabled = 1;
 934         }
 935         if (wep_key->key_length) {
 936                 void *enc_key;
 937
 938                 if (encrypt_key->key_disable) {
 939                         memset(&priv->wep_key[index], 0,
 940                                sizeof(struct mwifiex_wep_key));
 941                         goto done;
 942                 }
 943
 944                 if (adapter->key_api_major_ver == KEY_API_VER_MAJOR_V2)
 945                         enc_key = encrypt_key;
 946                 else
 947                         enc_key = NULL;
 948
 949                 /* Send request to firmware */
 950                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
 951                                        HostCmd_ACT_GEN_SET, 0, enc_key, false);
 952                 if (ret)
 953                         return ret;
 954         }
 955
 956 done:
 957         if (priv->sec_info.wep_enabled)
 958                 priv->curr_pkt_filter |= HostCmd_ACT_MAC_WEP_ENABLE;
 959         else
 960                 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_WEP_ENABLE;
 961
 962         ret = mwifiex_send_cmd(priv, HostCmd_CMD_MAC_CONTROL,
 963                                HostCmd_ACT_GEN_SET, 0,
 964                                &priv->curr_pkt_filter, true);
 965
 966         return ret;
 967 }
 968
 969 /*
 970  * IOCTL request handler to set WPA key.
 971  *
 972  * This function prepares the correct firmware command and
 973  * issues it, after validation checks.
 974  *
 975  * Current driver only supports key length of up to 32 bytes.
 976  *
 977  * This function can also be used to disable a currently set key.
 978  */
 979 static int mwifiex_sec_ioctl_set_wpa_key(struct mwifiex_private *priv,
 980                               struct mwifiex_ds_encrypt_key *encrypt_key)
 981 {
 982         int ret;
 983         u8 remove_key = false;
 984         struct host_cmd_ds_802_11_key_material *ibss_key;
 985
 986         /* Current driver only supports key length of up to 32 bytes */
 987         if (encrypt_key->key_len > WLAN_MAX_KEY_LEN) {
 988                 mwifiex_dbg(priv->adapter, ERROR,
 989                             "key length too long\n");
 990                 return -1;
 991         }
 992
 993         if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
 994                 /*
 995                  * IBSS/WPA-None uses only one key (Group) for both receiving
 996                  * and sending unicast and multicast packets.
 997                  */
 998                 /* Send the key as PTK to firmware */
 999                 encrypt_key->key_index = MWIFIEX_KEY_INDEX_UNICAST;
1000                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
1001                                        HostCmd_ACT_GEN_SET,
1002                                        KEY_INFO_ENABLED, encrypt_key, false);
1003                 if (ret)
1004                         return ret;
1005
1006                 ibss_key = &priv->aes_key;
1007                 memset(ibss_key, 0,
1008                        sizeof(struct host_cmd_ds_802_11_key_material));
1009                 /* Copy the key in the driver */
1010                 memcpy(ibss_key->key_param_set.key, encrypt_key->key_material,
1011                        encrypt_key->key_len);
1012                 memcpy(&ibss_key->key_param_set.key_len, &encrypt_key->key_len,
1013                        sizeof(ibss_key->key_param_set.key_len));
1014                 ibss_key->key_param_set.key_type_id
1015                         = cpu_to_le16(KEY_TYPE_ID_TKIP);
1016                 ibss_key->key_param_set.key_info = cpu_to_le16(KEY_ENABLED);
1017
1018                 /* Send the key as GTK to firmware */
1019                 encrypt_key->key_index = ~MWIFIEX_KEY_INDEX_UNICAST;
1020         }
1021
1022         if (!encrypt_key->key_index)
1023                 encrypt_key->key_index = MWIFIEX_KEY_INDEX_UNICAST;
1024
1025         if (remove_key)
1026                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
1027                                        HostCmd_ACT_GEN_SET,
1028                                        !KEY_INFO_ENABLED, encrypt_key, true);
1029         else
1030                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
1031                                        HostCmd_ACT_GEN_SET,
1032                                        KEY_INFO_ENABLED, encrypt_key, true);
1033
1034         return ret;
1035 }
1036
1037 /*
1038  * IOCTL request handler to set/get network keys.
1039  *
1040  * This is a generic key handling function which supports WEP, WPA
1041  * and WAPI.
1042  */
1043 static int
1044 mwifiex_sec_ioctl_encrypt_key(struct mwifiex_private *priv,
1045                               struct mwifiex_ds_encrypt_key *encrypt_key)
1046 {
1047         int status;
1048
1049         if (encrypt_key->is_wapi_key)
1050                 status = mwifiex_sec_ioctl_set_wapi_key(priv, encrypt_key);
1051         else if (encrypt_key->key_len > WLAN_KEY_LEN_WEP104)
1052                 status = mwifiex_sec_ioctl_set_wpa_key(priv, encrypt_key);
1053         else
1054                 status = mwifiex_sec_ioctl_set_wep_key(priv, encrypt_key);
1055         return status;
1056 }
1057
1058 /*
1059  * This function returns the driver version.
1060  */
1061 int
1062 mwifiex_drv_get_driver_version(struct mwifiex_adapter *adapter, char *version,
1063                                int max_len)
1064 {
1065         union {
1066                 __le32 l;
1067                 u8 c[4];
1068         } ver;
1069         char fw_ver[32];
1070
1071         ver.l = cpu_to_le32(adapter->fw_release_number);
1072         sprintf(fw_ver, "%u.%u.%u.p%u", ver.c[2], ver.c[1], ver.c[0], ver.c[3]);
1073
1074         snprintf(version, max_len, driver_version, fw_ver);
1075
1076         mwifiex_dbg(adapter, MSG, "info: MWIFIEX VERSION: %s\n", version);
1077
1078         return 0;
1079 }
1080
1081 /*
1082  * Sends IOCTL request to set encoding parameters.
1083  *
1084  * This function allocates the IOCTL request buffer, fills it
1085  * with requisite parameters and calls the IOCTL handler.
1086  */
1087 int mwifiex_set_encode(struct mwifiex_private *priv, struct key_params *kp,
1088                        const u8 *key, int key_len, u8 key_index,
1089                        const u8 *mac_addr, int disable)
1090 {
1091         struct mwifiex_ds_encrypt_key encrypt_key;
1092
1093         memset(&encrypt_key, 0, sizeof(struct mwifiex_ds_encrypt_key));
1094         encrypt_key.key_len = key_len;
1095         encrypt_key.key_index = key_index;
1096
1097         if (kp && kp->cipher == WLAN_CIPHER_SUITE_AES_CMAC)
1098                 encrypt_key.is_igtk_key = true;
1099
1100         if (!disable) {
1101                 if (key_len)
1102                         memcpy(encrypt_key.key_material, key, key_len);
1103                 else
1104                         encrypt_key.is_current_wep_key = true;
1105
1106                 if (mac_addr)
1107                         memcpy(encrypt_key.mac_addr, mac_addr, ETH_ALEN);
1108                 if (kp && kp->seq && kp->seq_len) {
1109                         memcpy(encrypt_key.pn, kp->seq, kp->seq_len);
1110                         encrypt_key.pn_len = kp->seq_len;
1111                         encrypt_key.is_rx_seq_valid = true;
1112                 }
1113         } else {
1114                 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP)
1115                         return 0;
1116                 encrypt_key.key_disable = true;
1117                 if (mac_addr)
1118                         memcpy(encrypt_key.mac_addr, mac_addr, ETH_ALEN);
1119         }
1120
1121         return mwifiex_sec_ioctl_encrypt_key(priv, &encrypt_key);
1122 }
1123
1124 /*
1125  * Sends IOCTL request to get extended version.
1126  *
1127  * This function allocates the IOCTL request buffer, fills it
1128  * with requisite parameters and calls the IOCTL handler.
1129  */
1130 int
1131 mwifiex_get_ver_ext(struct mwifiex_private *priv, u32 version_str_sel)
1132 {
1133         struct mwifiex_ver_ext ver_ext;
1134
1135         memset(&ver_ext, 0, sizeof(struct host_cmd_ds_version_ext));
1136         ver_ext.version_str_sel = version_str_sel;
1137         if (mwifiex_send_cmd(priv, HostCmd_CMD_VERSION_EXT,
1138                              HostCmd_ACT_GEN_GET, 0, &ver_ext, true))
1139                 return -1;
1140
1141         return 0;
1142 }
1143
1144 int
1145 mwifiex_remain_on_chan_cfg(struct mwifiex_private *priv, u16 action,
1146                            struct ieee80211_channel *chan,
1147                            unsigned int duration)
1148 {
1149         struct host_cmd_ds_remain_on_chan roc_cfg;
1150         u8 sc;
1151
1152         memset(&roc_cfg, 0, sizeof(roc_cfg));
1153         roc_cfg.action = cpu_to_le16(action);
1154         if (action == HostCmd_ACT_GEN_SET) {
1155                 roc_cfg.band_cfg = chan->band;
1156                 sc = mwifiex_chan_type_to_sec_chan_offset(NL80211_CHAN_NO_HT);
1157                 roc_cfg.band_cfg |= (sc << 2);
1158
1159                 roc_cfg.channel =
1160                         ieee80211_frequency_to_channel(chan->center_freq);
1161                 roc_cfg.duration = cpu_to_le32(duration);
1162         }
1163         if (mwifiex_send_cmd(priv, HostCmd_CMD_REMAIN_ON_CHAN,
1164                              action, 0, &roc_cfg, true)) {
1165                 mwifiex_dbg(priv->adapter, ERROR,
1166                             "failed to remain on channel\n");
1167                 return -1;
1168         }
1169
1170         return roc_cfg.status;
1171 }
1172
1173 /*
1174  * Sends IOCTL request to get statistics information.
1175  *
1176  * This function allocates the IOCTL request buffer, fills it
1177  * with requisite parameters and calls the IOCTL handler.
1178  */
1179 int
1180 mwifiex_get_stats_info(struct mwifiex_private *priv,
1181                        struct mwifiex_ds_get_stats *log)
1182 {
1183         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_GET_LOG,
1184                                 HostCmd_ACT_GEN_GET, 0, log, true);
1185 }
1186
1187 /*
1188  * IOCTL request handler to read/write register.
1189  *
1190  * This function prepares the correct firmware command and
1191  * issues it.
1192  *
1193  * Access to the following registers are supported -
1194  *      - MAC
1195  *      - BBP
1196  *      - RF
1197  *      - PMIC
1198  *      - CAU
1199  */
1200 static int mwifiex_reg_mem_ioctl_reg_rw(struct mwifiex_private *priv,
1201                                         struct mwifiex_ds_reg_rw *reg_rw,
1202                                         u16 action)
1203 {
1204         u16 cmd_no;
1205
1206         switch (le32_to_cpu(reg_rw->type)) {
1207         case MWIFIEX_REG_MAC:
1208                 cmd_no = HostCmd_CMD_MAC_REG_ACCESS;
1209                 break;
1210         case MWIFIEX_REG_BBP:
1211                 cmd_no = HostCmd_CMD_BBP_REG_ACCESS;
1212                 break;
1213         case MWIFIEX_REG_RF:
1214                 cmd_no = HostCmd_CMD_RF_REG_ACCESS;
1215                 break;
1216         case MWIFIEX_REG_PMIC:
1217                 cmd_no = HostCmd_CMD_PMIC_REG_ACCESS;
1218                 break;
1219         case MWIFIEX_REG_CAU:
1220                 cmd_no = HostCmd_CMD_CAU_REG_ACCESS;
1221                 break;
1222         default:
1223                 return -1;
1224         }
1225
1226         return mwifiex_send_cmd(priv, cmd_no, action, 0, reg_rw, true);
1227 }
1228
1229 /*
1230  * Sends IOCTL request to write to a register.
1231  *
1232  * This function allocates the IOCTL request buffer, fills it
1233  * with requisite parameters and calls the IOCTL handler.
1234  */
1235 int
1236 mwifiex_reg_write(struct mwifiex_private *priv, u32 reg_type,
1237                   u32 reg_offset, u32 reg_value)
1238 {
1239         struct mwifiex_ds_reg_rw reg_rw;
1240
1241         reg_rw.type = cpu_to_le32(reg_type);
1242         reg_rw.offset = cpu_to_le32(reg_offset);
1243         reg_rw.value = cpu_to_le32(reg_value);
1244
1245         return mwifiex_reg_mem_ioctl_reg_rw(priv, &reg_rw, HostCmd_ACT_GEN_SET);
1246 }
1247
1248 /*
1249  * Sends IOCTL request to read from a register.
1250  *
1251  * This function allocates the IOCTL request buffer, fills it
1252  * with requisite parameters and calls the IOCTL handler.
1253  */
1254 int
1255 mwifiex_reg_read(struct mwifiex_private *priv, u32 reg_type,
1256                  u32 reg_offset, u32 *value)
1257 {
1258         int ret;
1259         struct mwifiex_ds_reg_rw reg_rw;
1260
1261         reg_rw.type = cpu_to_le32(reg_type);
1262         reg_rw.offset = cpu_to_le32(reg_offset);
1263         ret = mwifiex_reg_mem_ioctl_reg_rw(priv, &reg_rw, HostCmd_ACT_GEN_GET);
1264
1265         if (ret)
1266                 goto done;
1267
1268         *value = le32_to_cpu(reg_rw.value);
1269
1270 done:
1271         return ret;
1272 }
1273
1274 /*
1275  * Sends IOCTL request to read from EEPROM.
1276  *
1277  * This function allocates the IOCTL request buffer, fills it
1278  * with requisite parameters and calls the IOCTL handler.
1279  */
1280 int
1281 mwifiex_eeprom_read(struct mwifiex_private *priv, u16 offset, u16 bytes,
1282                     u8 *value)
1283 {
1284         int ret;
1285         struct mwifiex_ds_read_eeprom rd_eeprom;
1286
1287         rd_eeprom.offset = cpu_to_le16((u16) offset);
1288         rd_eeprom.byte_count = cpu_to_le16((u16) bytes);
1289
1290         /* Send request to firmware */
1291         ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_EEPROM_ACCESS,
1292                                HostCmd_ACT_GEN_GET, 0, &rd_eeprom, true);
1293
1294         if (!ret)
1295                 memcpy(value, rd_eeprom.value, MAX_EEPROM_DATA);
1296         return ret;
1297 }
1298
1299 /*
1300  * This function sets a generic IE. In addition to generic IE, it can
1301  * also handle WPA, WPA2 and WAPI IEs.
1302  */
1303 static int
1304 mwifiex_set_gen_ie_helper(struct mwifiex_private *priv, u8 *ie_data_ptr,
1305                           u16 ie_len)
1306 {
1307         int ret = 0;
1308         struct ieee_types_vendor_header *pvendor_ie;
1309         const u8 wpa_oui[] = { 0x00, 0x50, 0xf2, 0x01 };
1310         const u8 wps_oui[] = { 0x00, 0x50, 0xf2, 0x04 };
1311         u16 unparsed_len = ie_len;
1312         int find_wpa_ie = 0;
1313
1314         /* If the passed length is zero, reset the buffer */
1315         if (!ie_len) {
1316                 priv->gen_ie_buf_len = 0;
1317                 priv->wps.session_enable = false;
1318
1319                 return 0;
1320         } else if (!ie_data_ptr) {
1321                 return -1;
1322         }
1323         pvendor_ie = (struct ieee_types_vendor_header *) ie_data_ptr;
1324
1325         while (pvendor_ie) {
1326                 if (pvendor_ie->element_id == WLAN_EID_VENDOR_SPECIFIC) {
1327                         /* Test to see if it is a WPA IE, if not, then it is a
1328                          * gen IE
1329                          */
1330                         if (!memcmp(pvendor_ie->oui, wpa_oui,
1331                                     sizeof(wpa_oui))) {
1332                                 find_wpa_ie = 1;
1333                                 break;
1334                         }
1335
1336                         /* Test to see if it is a WPS IE, if so, enable
1337                          * wps session flag
1338                          */
1339                         if (!memcmp(pvendor_ie->oui, wps_oui,
1340                                     sizeof(wps_oui))) {
1341                                 priv->wps.session_enable = true;
1342                                 mwifiex_dbg(priv->adapter, MSG,
1343                                             "info: WPS Session Enabled.\n");
1344                                 ret = mwifiex_set_wps_ie(priv,
1345                                                          (u8 *)pvendor_ie,
1346                                                          unparsed_len);
1347                         }
1348                 }
1349
1350                 if (pvendor_ie->element_id == WLAN_EID_RSN) {
1351                         find_wpa_ie = 1;
1352                         break;
1353                 }
1354
1355                 if (pvendor_ie->element_id == WLAN_EID_BSS_AC_ACCESS_DELAY) {
1356                 /* IE is a WAPI IE so call set_wapi function */
1357                         ret = mwifiex_set_wapi_ie(priv, (u8 *)pvendor_ie,
1358                                                   unparsed_len);
1359                         return ret;
1360                 }
1361
1362                 unparsed_len -= (pvendor_ie->len +
1363                                  sizeof(struct ieee_types_header));
1364
1365                 if (unparsed_len <= sizeof(struct ieee_types_header))
1366                         pvendor_ie = NULL;
1367                 else
1368                         pvendor_ie = (struct ieee_types_vendor_header *)
1369                                 (((u8 *)pvendor_ie) + pvendor_ie->len +
1370                                  sizeof(struct ieee_types_header));
1371         }
1372
1373         if (find_wpa_ie) {
1374                 /* IE is a WPA/WPA2 IE so call set_wpa function */
1375                 ret = mwifiex_set_wpa_ie_helper(priv, (u8 *)pvendor_ie,
1376                                                 unparsed_len);
1377                 priv->wps.session_enable = false;
1378                 return ret;
1379         }
1380
1381         /*
1382          * Verify that the passed length is not larger than the
1383          * available space remaining in the buffer
1384          */
1385         if (ie_len < (sizeof(priv->gen_ie_buf) - priv->gen_ie_buf_len)) {
1386
1387                 /* Append the passed data to the end of the
1388                    genIeBuffer */
1389                 memcpy(priv->gen_ie_buf + priv->gen_ie_buf_len, ie_data_ptr,
1390                        ie_len);
1391                 /* Increment the stored buffer length by the
1392                    size passed */
1393                 priv->gen_ie_buf_len += ie_len;
1394         } else {
1395                 /* Passed data does not fit in the remaining
1396                    buffer space */
1397                 ret = -1;
1398         }
1399
1400         /* Return 0, or -1 for error case */
1401         return ret;
1402 }
1403
1404 /*
1405  * IOCTL request handler to set/get generic IE.
1406  *
1407  * In addition to various generic IEs, this function can also be
1408  * used to set the ARP filter.
1409  */
1410 static int mwifiex_misc_ioctl_gen_ie(struct mwifiex_private *priv,
1411                                      struct mwifiex_ds_misc_gen_ie *gen_ie,
1412                                      u16 action)
1413 {
1414         struct mwifiex_adapter *adapter = priv->adapter;
1415
1416         switch (gen_ie->type) {
1417         case MWIFIEX_IE_TYPE_GEN_IE:
1418                 if (action == HostCmd_ACT_GEN_GET) {
1419                         gen_ie->len = priv->wpa_ie_len;
1420                         memcpy(gen_ie->ie_data, priv->wpa_ie, gen_ie->len);
1421                 } else {
1422                         mwifiex_set_gen_ie_helper(priv, gen_ie->ie_data,
1423                                                   (u16) gen_ie->len);
1424                 }
1425                 break;
1426         case MWIFIEX_IE_TYPE_ARP_FILTER:
1427                 memset(adapter->arp_filter, 0, sizeof(adapter->arp_filter));
1428                 if (gen_ie->len > ARP_FILTER_MAX_BUF_SIZE) {
1429                         adapter->arp_filter_size = 0;
1430                         mwifiex_dbg(adapter, ERROR,
1431                                     "invalid ARP filter size\n");
1432                         return -1;
1433                 } else {
1434                         memcpy(adapter->arp_filter, gen_ie->ie_data,
1435                                gen_ie->len);
1436                         adapter->arp_filter_size = gen_ie->len;
1437                 }
1438                 break;
1439         default:
1440                 mwifiex_dbg(adapter, ERROR, "invalid IE type\n");
1441                 return -1;
1442         }
1443         return 0;
1444 }
1445
1446 /*
1447  * Sends IOCTL request to set a generic IE.
1448  *
1449  * This function allocates the IOCTL request buffer, fills it
1450  * with requisite parameters and calls the IOCTL handler.
1451  */
1452 int
1453 mwifiex_set_gen_ie(struct mwifiex_private *priv, const u8 *ie, int ie_len)
1454 {
1455         struct mwifiex_ds_misc_gen_ie gen_ie;
1456
1457         if (ie_len > IEEE_MAX_IE_SIZE)
1458                 return -EFAULT;
1459
1460         gen_ie.type = MWIFIEX_IE_TYPE_GEN_IE;
1461         gen_ie.len = ie_len;
1462         memcpy(gen_ie.ie_data, ie, ie_len);
1463         if (mwifiex_misc_ioctl_gen_ie(priv, &gen_ie, HostCmd_ACT_GEN_SET))
1464                 return -EFAULT;
1465
1466         return 0;
1467 }
1468
1469 /* This function get Host Sleep wake up reason.
1470  *
1471  */
1472 int mwifiex_get_wakeup_reason(struct mwifiex_private *priv, u16 action,
1473                               int cmd_type,
1474                               struct mwifiex_ds_wakeup_reason *wakeup_reason)
1475 {
1476         int status = 0;
1477
1478         status = mwifiex_send_cmd(priv, HostCmd_CMD_HS_WAKEUP_REASON,
1479                                   HostCmd_ACT_GEN_GET, 0, wakeup_reason,
1480                                   cmd_type == MWIFIEX_SYNC_CMD);
1481
1482         return status;
1483 }