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