drivers/net/wireless/mwifiex/sta_ioctl.c

   1 /*
   2  * Marvell Wireless LAN device driver: functions for station ioctl
   3  *
   4  * Copyright (C) 2011, Marvell International Ltd.
   5  *
   6  * This software file (the "File") is distributed by Marvell International
   7  * Ltd. under the terms of the GNU General Public License Version 2, June 1991
   8  * (the "License").  You may use, redistribute and/or modify this File in
   9  * accordance with the terms and conditions of the License, a copy of which
  10  * is available by writing to the Free Software Foundation, Inc.,
  11  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
  12  * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
  13  *
  14  * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
  16  * ARE EXPRESSLY DISCLAIMED.  The License provides additional details about
  17  * this warranty disclaimer.
  18  */
  19
  20 #include "decl.h"
  21 #include "ioctl.h"
  22 #include "util.h"
  23 #include "fw.h"
  24 #include "main.h"
  25 #include "wmm.h"
  26 #include "11n.h"
  27 #include "cfg80211.h"
  28
  29 static int disconnect_on_suspend = 1;
  30 module_param(disconnect_on_suspend, int, 0644);
  31
  32 /*
  33  * Copies the multicast address list from device to driver.
  34  *
  35  * This function does not validate the destination memory for
  36  * size, and the calling function must ensure enough memory is
  37  * available.
  38  */
  39 int mwifiex_copy_mcast_addr(struct mwifiex_multicast_list *mlist,
  40                             struct net_device *dev)
  41 {
  42         int i = 0;
  43         struct netdev_hw_addr *ha;
  44
  45         netdev_for_each_mc_addr(ha, dev)
  46                 memcpy(&mlist->mac_list[i++], ha->addr, ETH_ALEN);
  47
  48         return i;
  49 }
  50
  51 /*
  52  * Wait queue completion handler.
  53  *
  54  * This function waits on a cmd wait queue. It also cancels the pending
  55  * request after waking up, in case of errors.
  56  */
  57 int mwifiex_wait_queue_complete(struct mwifiex_adapter *adapter,
  58                                 struct cmd_ctrl_node *cmd_queued)
  59 {
  60         int status;
  61
  62         /* Wait for completion */
  63         status = wait_event_interruptible(adapter->cmd_wait_q.wait,
  64                                           *(cmd_queued->condition));
  65         if (status) {
  66                 dev_err(adapter->dev, "cmd_wait_q terminated: %d\n", status);
  67                 return status;
  68         }
  69
  70         status = adapter->cmd_wait_q.status;
  71         adapter->cmd_wait_q.status = 0;
  72
  73         return status;
  74 }
  75
  76 /*
  77  * This function prepares the correct firmware command and
  78  * issues it to set the multicast list.
  79  *
  80  * This function can be used to enable promiscuous mode, or enable all
  81  * multicast packets, or to enable selective multicast.
  82  */
  83 int mwifiex_request_set_multicast_list(struct mwifiex_private *priv,
  84                                 struct mwifiex_multicast_list *mcast_list)
  85 {
  86         int ret = 0;
  87         u16 old_pkt_filter;
  88
  89         old_pkt_filter = priv->curr_pkt_filter;
  90
  91         if (mcast_list->mode == MWIFIEX_PROMISC_MODE) {
  92                 dev_dbg(priv->adapter->dev, "info: Enable Promiscuous mode\n");
  93                 priv->curr_pkt_filter |= HostCmd_ACT_MAC_PROMISCUOUS_ENABLE;
  94                 priv->curr_pkt_filter &=
  95                         ~HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE;
  96         } else {
  97                 /* Multicast */
  98                 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_PROMISCUOUS_ENABLE;
  99                 if (mcast_list->mode == MWIFIEX_ALL_MULTI_MODE) {
 100                         dev_dbg(priv->adapter->dev,
 101                                 "info: Enabling All Multicast!\n");
 102                         priv->curr_pkt_filter |=
 103                                 HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE;
 104                 } else {
 105                         priv->curr_pkt_filter &=
 106                                 ~HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE;
 107                         dev_dbg(priv->adapter->dev,
 108                                 "info: Set multicast list=%d\n",
 109                                 mcast_list->num_multicast_addr);
 110                         /* Send multicast addresses to firmware */
 111                         ret = mwifiex_send_cmd_async(priv,
 112                                 HostCmd_CMD_MAC_MULTICAST_ADR,
 113                                 HostCmd_ACT_GEN_SET, 0,
 114                                 mcast_list);
 115                 }
 116         }
 117         dev_dbg(priv->adapter->dev,
 118                 "info: old_pkt_filter=%#x, curr_pkt_filter=%#x\n",
 119                old_pkt_filter, priv->curr_pkt_filter);
 120         if (old_pkt_filter != priv->curr_pkt_filter) {
 121                 ret = mwifiex_send_cmd_async(priv, HostCmd_CMD_MAC_CONTROL,
 122                                              HostCmd_ACT_GEN_SET,
 123                                              0, &priv->curr_pkt_filter);
 124         }
 125
 126         return ret;
 127 }
 128
 129 /*
 130  * This function fills bss descriptor structure using provided
 131  * information.
 132  * beacon_ie buffer is allocated in this function. It is caller's
 133  * responsibility to free the memory.
 134  */
 135 int mwifiex_fill_new_bss_desc(struct mwifiex_private *priv,
 136                               struct cfg80211_bss *bss,
 137                               struct mwifiex_bssdescriptor *bss_desc)
 138 {
 139         u8 *beacon_ie;
 140         size_t beacon_ie_len;
 141         struct mwifiex_bss_priv *bss_priv = (void *)bss->priv;
 142         const struct cfg80211_bss_ies *ies;
 143
 144         rcu_read_lock();
 145         ies = rcu_dereference(bss->ies);
 146         beacon_ie = kmemdup(ies->data, ies->len, GFP_ATOMIC);
 147         beacon_ie_len = ies->len;
 148         bss_desc->timestamp = ies->tsf;
 149         rcu_read_unlock();
 150
 151         if (!beacon_ie) {
 152                 dev_err(priv->adapter->dev, " failed to alloc beacon_ie\n");
 153                 return -ENOMEM;
 154         }
 155
 156         memcpy(bss_desc->mac_address, bss->bssid, ETH_ALEN);
 157         bss_desc->rssi = bss->signal;
 158         /* The caller of this function will free beacon_ie */
 159         bss_desc->beacon_buf = beacon_ie;
 160         bss_desc->beacon_buf_size = beacon_ie_len;
 161         bss_desc->beacon_period = bss->beacon_interval;
 162         bss_desc->cap_info_bitmap = bss->capability;
 163         bss_desc->bss_band = bss_priv->band;
 164         bss_desc->fw_tsf = bss_priv->fw_tsf;
 165         if (bss_desc->cap_info_bitmap & WLAN_CAPABILITY_PRIVACY) {
 166                 dev_dbg(priv->adapter->dev, "info: InterpretIE: AP WEP enabled\n");
 167                 bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_8021X_WEP;
 168         } else {
 169                 bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_ACCEPT_ALL;
 170         }
 171         if (bss_desc->cap_info_bitmap & WLAN_CAPABILITY_IBSS)
 172                 bss_desc->bss_mode = NL80211_IFTYPE_ADHOC;
 173         else
 174                 bss_desc->bss_mode = NL80211_IFTYPE_STATION;
 175
 176         /* Disable 11ac by default. Enable it only where there
 177          * exist VHT_CAP IE in AP beacon
 178          */
 179         bss_desc->disable_11ac = true;
 180
 181         return mwifiex_update_bss_desc_with_ie(priv->adapter, bss_desc);
 182 }
 183
 184 static int mwifiex_process_country_ie(struct mwifiex_private *priv,
 185                                       struct cfg80211_bss *bss)
 186 {
 187         const u8 *country_ie;
 188         u8 country_ie_len;
 189         struct mwifiex_802_11d_domain_reg *domain_info =
 190                                         &priv->adapter->domain_reg;
 191
 192         rcu_read_lock();
 193         country_ie = ieee80211_bss_get_ie(bss, WLAN_EID_COUNTRY);
 194         if (!country_ie) {
 195                 rcu_read_unlock();
 196                 return 0;
 197         }
 198
 199         country_ie_len = country_ie[1];
 200         if (country_ie_len < IEEE80211_COUNTRY_IE_MIN_LEN) {
 201                 rcu_read_unlock();
 202                 return 0;
 203         }
 204
 205         domain_info->country_code[0] = country_ie[2];
 206         domain_info->country_code[1] = country_ie[3];
 207         domain_info->country_code[2] = ' ';
 208
 209         country_ie_len -= IEEE80211_COUNTRY_STRING_LEN;
 210
 211         domain_info->no_of_triplet =
 212                 country_ie_len / sizeof(struct ieee80211_country_ie_triplet);
 213
 214         memcpy((u8 *)domain_info->triplet,
 215                &country_ie[2] + IEEE80211_COUNTRY_STRING_LEN, country_ie_len);
 216
 217         rcu_read_unlock();
 218
 219         if (mwifiex_send_cmd_async(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
 220                                    HostCmd_ACT_GEN_SET, 0, NULL)) {
 221                 wiphy_err(priv->adapter->wiphy,
 222                           "11D: setting domain info in FW\n");
 223                 return -1;
 224         }
 225
 226         return 0;
 227 }
 228
 229 /*
 230  * In Ad-Hoc mode, the IBSS is created if not found in scan list.
 231  * In both Ad-Hoc and infra mode, an deauthentication is performed
 232  * first.
 233  */
 234 int mwifiex_bss_start(struct mwifiex_private *priv, struct cfg80211_bss *bss,
 235                       struct cfg80211_ssid *req_ssid)
 236 {
 237         int ret;
 238         struct mwifiex_adapter *adapter = priv->adapter;
 239         struct mwifiex_bssdescriptor *bss_desc = NULL;
 240
 241         priv->scan_block = false;
 242
 243         if (bss) {
 244                 mwifiex_process_country_ie(priv, bss);
 245
 246                 /* Allocate and fill new bss descriptor */
 247                 bss_desc = kzalloc(sizeof(struct mwifiex_bssdescriptor),
 248                                    GFP_KERNEL);
 249                 if (!bss_desc)
 250                         return -ENOMEM;
 251
 252                 ret = mwifiex_fill_new_bss_desc(priv, bss, bss_desc);
 253                 if (ret)
 254                         goto done;
 255         }
 256
 257         if (priv->bss_mode == NL80211_IFTYPE_STATION) {
 258                 u8 config_bands;
 259
 260                 /* Infra mode */
 261                 ret = mwifiex_deauthenticate(priv, NULL);
 262                 if (ret)
 263                         goto done;
 264
 265                 if (!bss_desc)
 266                         return -1;
 267
 268                 if (mwifiex_band_to_radio_type(bss_desc->bss_band) ==
 269                                                 HostCmd_SCAN_RADIO_TYPE_BG)
 270                         config_bands = BAND_B | BAND_G | BAND_GN | BAND_GAC;
 271                 else
 272                         config_bands = BAND_A | BAND_AN | BAND_AAC;
 273
 274                 if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands))
 275                         adapter->config_bands = config_bands;
 276
 277                 ret = mwifiex_check_network_compatibility(priv, bss_desc);
 278                 if (ret)
 279                         goto done;
 280
 281                 dev_dbg(adapter->dev, "info: SSID found in scan list ... "
 282                                       "associating...\n");
 283
 284                 mwifiex_stop_net_dev_queue(priv->netdev, adapter);
 285                 if (netif_carrier_ok(priv->netdev))
 286                         netif_carrier_off(priv->netdev);
 287
 288                 /* Clear any past association response stored for
 289                  * application retrieval */
 290                 priv->assoc_rsp_size = 0;
 291                 ret = mwifiex_associate(priv, bss_desc);
 292
 293                 /* If auth type is auto and association fails using open mode,
 294                  * try to connect using shared mode */
 295                 if (ret == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG &&
 296                     priv->sec_info.is_authtype_auto &&
 297                     priv->sec_info.wep_enabled) {
 298                         priv->sec_info.authentication_mode =
 299                                                 NL80211_AUTHTYPE_SHARED_KEY;
 300                         ret = mwifiex_associate(priv, bss_desc);
 301                 }
 302
 303                 if (bss)
 304                         cfg80211_put_bss(priv->adapter->wiphy, bss);
 305         } else {
 306                 /* Adhoc mode */
 307                 /* If the requested SSID matches current SSID, return */
 308                 if (bss_desc && bss_desc->ssid.ssid_len &&
 309                     (!mwifiex_ssid_cmp(&priv->curr_bss_params.bss_descriptor.
 310                                        ssid, &bss_desc->ssid))) {
 311                         kfree(bss_desc);
 312                         return 0;
 313                 }
 314
 315                 /* Exit Adhoc mode first */
 316                 dev_dbg(adapter->dev, "info: Sending Adhoc Stop\n");
 317                 ret = mwifiex_deauthenticate(priv, NULL);
 318                 if (ret)
 319                         goto done;
 320
 321                 priv->adhoc_is_link_sensed = false;
 322
 323                 ret = mwifiex_check_network_compatibility(priv, bss_desc);
 324
 325                 mwifiex_stop_net_dev_queue(priv->netdev, adapter);
 326                 if (netif_carrier_ok(priv->netdev))
 327                         netif_carrier_off(priv->netdev);
 328
 329                 if (!ret) {
 330                         dev_dbg(adapter->dev, "info: network found in scan"
 331                                                         " list. Joining...\n");
 332                         ret = mwifiex_adhoc_join(priv, bss_desc);
 333                         if (bss)
 334                                 cfg80211_put_bss(priv->adapter->wiphy, bss);
 335                 } else {
 336                         dev_dbg(adapter->dev, "info: Network not found in "
 337                                 "the list, creating adhoc with ssid = %s\n",
 338                                 req_ssid->ssid);
 339                         ret = mwifiex_adhoc_start(priv, req_ssid);
 340                 }
 341         }
 342
 343 done:
 344         /* beacon_ie buffer was allocated in function
 345          * mwifiex_fill_new_bss_desc(). Free it now.
 346          */
 347         if (bss_desc)
 348                 kfree(bss_desc->beacon_buf);
 349         kfree(bss_desc);
 350         return ret;
 351 }
 352
 353 /*
 354  * IOCTL request handler to set host sleep configuration.
 355  *
 356  * This function prepares the correct firmware command and
 357  * issues it.
 358  */
 359 static int mwifiex_set_hs_params(struct mwifiex_private *priv, u16 action,
 360                                  int cmd_type, struct mwifiex_ds_hs_cfg *hs_cfg)
 361
 362 {
 363         struct mwifiex_adapter *adapter = priv->adapter;
 364         int status = 0;
 365         u32 prev_cond = 0;
 366
 367         if (!hs_cfg)
 368                 return -ENOMEM;
 369
 370         switch (action) {
 371         case HostCmd_ACT_GEN_SET:
 372                 if (adapter->pps_uapsd_mode) {
 373                         dev_dbg(adapter->dev, "info: Host Sleep IOCTL"
 374                                 " is blocked in UAPSD/PPS mode\n");
 375                         status = -1;
 376                         break;
 377                 }
 378                 if (hs_cfg->is_invoke_hostcmd) {
 379                         if (hs_cfg->conditions == HS_CFG_CANCEL) {
 380                                 if (!adapter->is_hs_configured)
 381                                         /* Already cancelled */
 382                                         break;
 383                                 /* Save previous condition */
 384                                 prev_cond = le32_to_cpu(adapter->hs_cfg
 385                                                         .conditions);
 386                                 adapter->hs_cfg.conditions =
 387                                                 cpu_to_le32(hs_cfg->conditions);
 388                         } else if (hs_cfg->conditions) {
 389                                 adapter->hs_cfg.conditions =
 390                                                 cpu_to_le32(hs_cfg->conditions);
 391                                 adapter->hs_cfg.gpio = (u8)hs_cfg->gpio;
 392                                 if (hs_cfg->gap)
 393                                         adapter->hs_cfg.gap = (u8)hs_cfg->gap;
 394                         } else if (adapter->hs_cfg.conditions ==
 395                                    cpu_to_le32(HS_CFG_CANCEL)) {
 396                                 /* Return failure if no parameters for HS
 397                                    enable */
 398                                 status = -1;
 399                                 break;
 400                         }
 401                         if (cmd_type == MWIFIEX_SYNC_CMD)
 402                                 status = mwifiex_send_cmd_sync(priv,
 403                                                 HostCmd_CMD_802_11_HS_CFG_ENH,
 404                                                 HostCmd_ACT_GEN_SET, 0,
 405                                                 &adapter->hs_cfg);
 406                         else
 407                                 status = mwifiex_send_cmd_async(priv,
 408                                                 HostCmd_CMD_802_11_HS_CFG_ENH,
 409                                                 HostCmd_ACT_GEN_SET, 0,
 410                                                 &adapter->hs_cfg);
 411                         if (hs_cfg->conditions == HS_CFG_CANCEL)
 412                                 /* Restore previous condition */
 413                                 adapter->hs_cfg.conditions =
 414                                                 cpu_to_le32(prev_cond);
 415                 } else {
 416                         adapter->hs_cfg.conditions =
 417                                                 cpu_to_le32(hs_cfg->conditions);
 418                         adapter->hs_cfg.gpio = (u8)hs_cfg->gpio;
 419                         adapter->hs_cfg.gap = (u8)hs_cfg->gap;
 420                 }
 421                 break;
 422         case HostCmd_ACT_GEN_GET:
 423                 hs_cfg->conditions = le32_to_cpu(adapter->hs_cfg.conditions);
 424                 hs_cfg->gpio = adapter->hs_cfg.gpio;
 425                 hs_cfg->gap = adapter->hs_cfg.gap;
 426                 break;
 427         default:
 428                 status = -1;
 429                 break;
 430         }
 431
 432         return status;
 433 }
 434
 435 /*
 436  * Sends IOCTL request to cancel the existing Host Sleep configuration.
 437  *
 438  * This function allocates the IOCTL request buffer, fills it
 439  * with requisite parameters and calls the IOCTL handler.
 440  */
 441 int mwifiex_cancel_hs(struct mwifiex_private *priv, int cmd_type)
 442 {
 443         struct mwifiex_ds_hs_cfg hscfg;
 444
 445         hscfg.conditions = HS_CFG_CANCEL;
 446         hscfg.is_invoke_hostcmd = true;
 447
 448         return mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_SET,
 449                                     cmd_type, &hscfg);
 450 }
 451 EXPORT_SYMBOL_GPL(mwifiex_cancel_hs);
 452
 453 /*
 454  * Sends IOCTL request to cancel the existing Host Sleep configuration.
 455  *
 456  * This function allocates the IOCTL request buffer, fills it
 457  * with requisite parameters and calls the IOCTL handler.
 458  */
 459 int mwifiex_enable_hs(struct mwifiex_adapter *adapter)
 460 {
 461         struct mwifiex_ds_hs_cfg hscfg;
 462         struct mwifiex_private *priv;
 463         int i;
 464
 465         if (disconnect_on_suspend) {
 466                 for (i = 0; i < adapter->priv_num; i++) {
 467                         priv = adapter->priv[i];
 468                         if (priv)
 469                                 mwifiex_deauthenticate(priv, NULL);
 470                 }
 471         }
 472
 473         if (adapter->hs_activated) {
 474                 dev_dbg(adapter->dev, "cmd: HS Already activated\n");
 475                 return true;
 476         }
 477
 478         adapter->hs_activate_wait_q_woken = false;
 479
 480         memset(&hscfg, 0, sizeof(struct mwifiex_ds_hs_cfg));
 481         hscfg.is_invoke_hostcmd = true;
 482
 483         if (mwifiex_set_hs_params(mwifiex_get_priv(adapter,
 484                                                    MWIFIEX_BSS_ROLE_STA),
 485                                   HostCmd_ACT_GEN_SET, MWIFIEX_SYNC_CMD,
 486                                   &hscfg)) {
 487                 dev_err(adapter->dev, "IOCTL request HS enable failed\n");
 488                 return false;
 489         }
 490
 491         if (wait_event_interruptible(adapter->hs_activate_wait_q,
 492                                      adapter->hs_activate_wait_q_woken)) {
 493                 dev_err(adapter->dev, "hs_activate_wait_q terminated\n");
 494                 return false;
 495         }
 496
 497         return true;
 498 }
 499 EXPORT_SYMBOL_GPL(mwifiex_enable_hs);
 500
 501 /*
 502  * IOCTL request handler to get BSS information.
 503  *
 504  * This function collates the information from different driver structures
 505  * to send to the user.
 506  */
 507 int mwifiex_get_bss_info(struct mwifiex_private *priv,
 508                          struct mwifiex_bss_info *info)
 509 {
 510         struct mwifiex_adapter *adapter = priv->adapter;
 511         struct mwifiex_bssdescriptor *bss_desc;
 512
 513         if (!info)
 514                 return -1;
 515
 516         bss_desc = &priv->curr_bss_params.bss_descriptor;
 517
 518         info->bss_mode = priv->bss_mode;
 519
 520         memcpy(&info->ssid, &bss_desc->ssid, sizeof(struct cfg80211_ssid));
 521
 522         memcpy(&info->bssid, &bss_desc->mac_address, ETH_ALEN);
 523
 524         info->bss_chan = bss_desc->channel;
 525
 526         memcpy(info->country_code, adapter->country_code,
 527                IEEE80211_COUNTRY_STRING_LEN);
 528
 529         info->media_connected = priv->media_connected;
 530
 531         info->max_power_level = priv->max_tx_power_level;
 532         info->min_power_level = priv->min_tx_power_level;
 533
 534         info->adhoc_state = priv->adhoc_state;
 535
 536         info->bcn_nf_last = priv->bcn_nf_last;
 537
 538         if (priv->sec_info.wep_enabled)
 539                 info->wep_status = true;
 540         else
 541                 info->wep_status = false;
 542
 543         info->is_hs_configured = adapter->is_hs_configured;
 544         info->is_deep_sleep = adapter->is_deep_sleep;
 545
 546         return 0;
 547 }
 548
 549 /*
 550  * The function disables auto deep sleep mode.
 551  */
 552 int mwifiex_disable_auto_ds(struct mwifiex_private *priv)
 553 {
 554         struct mwifiex_ds_auto_ds auto_ds;
 555
 556         auto_ds.auto_ds = DEEP_SLEEP_OFF;
 557
 558         return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_PS_MODE_ENH,
 559                                      DIS_AUTO_PS, BITMAP_AUTO_DS, &auto_ds);
 560 }
 561 EXPORT_SYMBOL_GPL(mwifiex_disable_auto_ds);
 562
 563 /*
 564  * Sends IOCTL request to get the data rate.
 565  *
 566  * This function allocates the IOCTL request buffer, fills it
 567  * with requisite parameters and calls the IOCTL handler.
 568  */
 569 int mwifiex_drv_get_data_rate(struct mwifiex_private *priv, u32 *rate)
 570 {
 571         int ret;
 572
 573         ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_TX_RATE_QUERY,
 574                                     HostCmd_ACT_GEN_GET, 0, NULL);
 575
 576         if (!ret) {
 577                 if (priv->is_data_rate_auto)
 578                         *rate = mwifiex_index_to_data_rate(priv, priv->tx_rate,
 579                                                            priv->tx_htinfo);
 580                 else
 581                         *rate = priv->data_rate;
 582         }
 583
 584         return ret;
 585 }
 586
 587 /*
 588  * IOCTL request handler to set tx power configuration.
 589  *
 590  * This function prepares the correct firmware command and
 591  * issues it.
 592  *
 593  * For non-auto power mode, all the following power groups are set -
 594  *      - Modulation class HR/DSSS
 595  *      - Modulation class OFDM
 596  *      - Modulation class HTBW20
 597  *      - Modulation class HTBW40
 598  */
 599 int mwifiex_set_tx_power(struct mwifiex_private *priv,
 600                          struct mwifiex_power_cfg *power_cfg)
 601 {
 602         int ret;
 603         struct host_cmd_ds_txpwr_cfg *txp_cfg;
 604         struct mwifiex_types_power_group *pg_tlv;
 605         struct mwifiex_power_group *pg;
 606         u8 *buf;
 607         u16 dbm = 0;
 608
 609         if (!power_cfg->is_power_auto) {
 610                 dbm = (u16) power_cfg->power_level;
 611                 if ((dbm < priv->min_tx_power_level) ||
 612                     (dbm > priv->max_tx_power_level)) {
 613                         dev_err(priv->adapter->dev, "txpower value %d dBm"
 614                                 " is out of range (%d dBm-%d dBm)\n",
 615                                 dbm, priv->min_tx_power_level,
 616                                 priv->max_tx_power_level);
 617                         return -1;
 618                 }
 619         }
 620         buf = kzalloc(MWIFIEX_SIZE_OF_CMD_BUFFER, GFP_KERNEL);
 621         if (!buf)
 622                 return -ENOMEM;
 623
 624         txp_cfg = (struct host_cmd_ds_txpwr_cfg *) buf;
 625         txp_cfg->action = cpu_to_le16(HostCmd_ACT_GEN_SET);
 626         if (!power_cfg->is_power_auto) {
 627                 txp_cfg->mode = cpu_to_le32(1);
 628                 pg_tlv = (struct mwifiex_types_power_group *)
 629                          (buf + sizeof(struct host_cmd_ds_txpwr_cfg));
 630                 pg_tlv->type = TLV_TYPE_POWER_GROUP;
 631                 pg_tlv->length = 4 * sizeof(struct mwifiex_power_group);
 632                 pg = (struct mwifiex_power_group *)
 633                      (buf + sizeof(struct host_cmd_ds_txpwr_cfg)
 634                       + sizeof(struct mwifiex_types_power_group));
 635                 /* Power group for modulation class HR/DSSS */
 636                 pg->first_rate_code = 0x00;
 637                 pg->last_rate_code = 0x03;
 638                 pg->modulation_class = MOD_CLASS_HR_DSSS;
 639                 pg->power_step = 0;
 640                 pg->power_min = (s8) dbm;
 641                 pg->power_max = (s8) dbm;
 642                 pg++;
 643                 /* Power group for modulation class OFDM */
 644                 pg->first_rate_code = 0x00;
 645                 pg->last_rate_code = 0x07;
 646                 pg->modulation_class = MOD_CLASS_OFDM;
 647                 pg->power_step = 0;
 648                 pg->power_min = (s8) dbm;
 649                 pg->power_max = (s8) dbm;
 650                 pg++;
 651                 /* Power group for modulation class HTBW20 */
 652                 pg->first_rate_code = 0x00;
 653                 pg->last_rate_code = 0x20;
 654                 pg->modulation_class = MOD_CLASS_HT;
 655                 pg->power_step = 0;
 656                 pg->power_min = (s8) dbm;
 657                 pg->power_max = (s8) dbm;
 658                 pg->ht_bandwidth = HT_BW_20;
 659                 pg++;
 660                 /* Power group for modulation class HTBW40 */
 661                 pg->first_rate_code = 0x00;
 662                 pg->last_rate_code = 0x20;
 663                 pg->modulation_class = MOD_CLASS_HT;
 664                 pg->power_step = 0;
 665                 pg->power_min = (s8) dbm;
 666                 pg->power_max = (s8) dbm;
 667                 pg->ht_bandwidth = HT_BW_40;
 668         }
 669         ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_TXPWR_CFG,
 670                                     HostCmd_ACT_GEN_SET, 0, buf);
 671
 672         kfree(buf);
 673         return ret;
 674 }
 675
 676 /*
 677  * IOCTL request handler to get power save mode.
 678  *
 679  * This function prepares the correct firmware command and
 680  * issues it.
 681  */
 682 int mwifiex_drv_set_power(struct mwifiex_private *priv, u32 *ps_mode)
 683 {
 684         int ret;
 685         struct mwifiex_adapter *adapter = priv->adapter;
 686         u16 sub_cmd;
 687
 688         if (*ps_mode)
 689                 adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_PSP;
 690         else
 691                 adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_CAM;
 692         sub_cmd = (*ps_mode) ? EN_AUTO_PS : DIS_AUTO_PS;
 693         ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_PS_MODE_ENH,
 694                                     sub_cmd, BITMAP_STA_PS, NULL);
 695         if ((!ret) && (sub_cmd == DIS_AUTO_PS))
 696                 ret = mwifiex_send_cmd_async(priv,
 697                                              HostCmd_CMD_802_11_PS_MODE_ENH,
 698                                              GET_PS, 0, NULL);
 699
 700         return ret;
 701 }
 702
 703 /*
 704  * IOCTL request handler to set/reset WPA IE.
 705  *
 706  * The supplied WPA IE is treated as a opaque buffer. Only the first field
 707  * is checked to determine WPA version. If buffer length is zero, the existing
 708  * WPA IE is reset.
 709  */
 710 static int mwifiex_set_wpa_ie_helper(struct mwifiex_private *priv,
 711                                      u8 *ie_data_ptr, u16 ie_len)
 712 {
 713         if (ie_len) {
 714                 if (ie_len > sizeof(priv->wpa_ie)) {
 715                         dev_err(priv->adapter->dev,
 716                                 "failed to copy WPA IE, too big\n");
 717                         return -1;
 718                 }
 719                 memcpy(priv->wpa_ie, ie_data_ptr, ie_len);
 720                 priv->wpa_ie_len = (u8) ie_len;
 721                 dev_dbg(priv->adapter->dev, "cmd: Set Wpa_ie_len=%d IE=%#x\n",
 722                         priv->wpa_ie_len, priv->wpa_ie[0]);
 723
 724                 if (priv->wpa_ie[0] == WLAN_EID_VENDOR_SPECIFIC) {
 725                         priv->sec_info.wpa_enabled = true;
 726                 } else if (priv->wpa_ie[0] == WLAN_EID_RSN) {
 727                         priv->sec_info.wpa2_enabled = true;
 728                 } else {
 729                         priv->sec_info.wpa_enabled = false;
 730                         priv->sec_info.wpa2_enabled = false;
 731                 }
 732         } else {
 733                 memset(priv->wpa_ie, 0, sizeof(priv->wpa_ie));
 734                 priv->wpa_ie_len = 0;
 735                 dev_dbg(priv->adapter->dev, "info: reset wpa_ie_len=%d IE=%#x\n",
 736                         priv->wpa_ie_len, priv->wpa_ie[0]);
 737                 priv->sec_info.wpa_enabled = false;
 738                 priv->sec_info.wpa2_enabled = false;
 739         }
 740
 741         return 0;
 742 }
 743
 744 /*
 745  * IOCTL request handler to set/reset WAPI IE.
 746  *
 747  * The supplied WAPI IE is treated as a opaque buffer. Only the first field
 748  * is checked to internally enable WAPI. If buffer length is zero, the existing
 749  * WAPI IE is reset.
 750  */
 751 static int mwifiex_set_wapi_ie(struct mwifiex_private *priv,
 752                                u8 *ie_data_ptr, u16 ie_len)
 753 {
 754         if (ie_len) {
 755                 if (ie_len > sizeof(priv->wapi_ie)) {
 756                         dev_dbg(priv->adapter->dev,
 757                                 "info: failed to copy WAPI IE, too big\n");
 758                         return -1;
 759                 }
 760                 memcpy(priv->wapi_ie, ie_data_ptr, ie_len);
 761                 priv->wapi_ie_len = ie_len;
 762                 dev_dbg(priv->adapter->dev, "cmd: Set wapi_ie_len=%d IE=%#x\n",
 763                         priv->wapi_ie_len, priv->wapi_ie[0]);
 764
 765                 if (priv->wapi_ie[0] == WLAN_EID_BSS_AC_ACCESS_DELAY)
 766                         priv->sec_info.wapi_enabled = true;
 767         } else {
 768                 memset(priv->wapi_ie, 0, sizeof(priv->wapi_ie));
 769                 priv->wapi_ie_len = ie_len;
 770                 dev_dbg(priv->adapter->dev,
 771                         "info: Reset wapi_ie_len=%d IE=%#x\n",
 772                        priv->wapi_ie_len, priv->wapi_ie[0]);
 773                 priv->sec_info.wapi_enabled = false;
 774         }
 775         return 0;
 776 }
 777
 778 /*
 779  * IOCTL request handler to set/reset WPS IE.
 780  *
 781  * The supplied WPS IE is treated as a opaque buffer. Only the first field
 782  * is checked to internally enable WPS. If buffer length is zero, the existing
 783  * WPS IE is reset.
 784  */
 785 static int mwifiex_set_wps_ie(struct mwifiex_private *priv,
 786                                u8 *ie_data_ptr, u16 ie_len)
 787 {
 788         if (ie_len) {
 789                 priv->wps_ie = kzalloc(MWIFIEX_MAX_VSIE_LEN, GFP_KERNEL);
 790                 if (!priv->wps_ie)
 791                         return -ENOMEM;
 792                 if (ie_len > sizeof(priv->wps_ie)) {
 793                         dev_dbg(priv->adapter->dev,
 794                                 "info: failed to copy WPS IE, too big\n");
 795                         kfree(priv->wps_ie);
 796                         return -1;
 797                 }
 798                 memcpy(priv->wps_ie, ie_data_ptr, ie_len);
 799                 priv->wps_ie_len = ie_len;
 800                 dev_dbg(priv->adapter->dev, "cmd: Set wps_ie_len=%d IE=%#x\n",
 801                         priv->wps_ie_len, priv->wps_ie[0]);
 802         } else {
 803                 kfree(priv->wps_ie);
 804                 priv->wps_ie_len = ie_len;
 805                 dev_dbg(priv->adapter->dev,
 806                         "info: Reset wps_ie_len=%d\n", priv->wps_ie_len);
 807         }
 808         return 0;
 809 }
 810
 811 /*
 812  * IOCTL request handler to set WAPI key.
 813  *
 814  * This function prepares the correct firmware command and
 815  * issues it.
 816  */
 817 static int mwifiex_sec_ioctl_set_wapi_key(struct mwifiex_private *priv,
 818                                struct mwifiex_ds_encrypt_key *encrypt_key)
 819 {
 820
 821         return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
 822                                      HostCmd_ACT_GEN_SET, KEY_INFO_ENABLED,
 823                                      encrypt_key);
 824 }
 825
 826 /*
 827  * IOCTL request handler to set WEP network key.
 828  *
 829  * This function prepares the correct firmware command and
 830  * issues it, after validation checks.
 831  */
 832 static int mwifiex_sec_ioctl_set_wep_key(struct mwifiex_private *priv,
 833                               struct mwifiex_ds_encrypt_key *encrypt_key)
 834 {
 835         int ret;
 836         struct mwifiex_wep_key *wep_key;
 837         int index;
 838
 839         if (priv->wep_key_curr_index >= NUM_WEP_KEYS)
 840                 priv->wep_key_curr_index = 0;
 841         wep_key = &priv->wep_key[priv->wep_key_curr_index];
 842         index = encrypt_key->key_index;
 843         if (encrypt_key->key_disable) {
 844                 priv->sec_info.wep_enabled = 0;
 845         } else if (!encrypt_key->key_len) {
 846                 /* Copy the required key as the current key */
 847                 wep_key = &priv->wep_key[index];
 848                 if (!wep_key->key_length) {
 849                         dev_err(priv->adapter->dev,
 850                                 "key not set, so cannot enable it\n");
 851                         return -1;
 852                 }
 853                 priv->wep_key_curr_index = (u16) index;
 854                 priv->sec_info.wep_enabled = 1;
 855         } else {
 856                 wep_key = &priv->wep_key[index];
 857                 memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
 858                 /* Copy the key in the driver */
 859                 memcpy(wep_key->key_material,
 860                        encrypt_key->key_material,
 861                        encrypt_key->key_len);
 862                 wep_key->key_index = index;
 863                 wep_key->key_length = encrypt_key->key_len;
 864                 priv->sec_info.wep_enabled = 1;
 865         }
 866         if (wep_key->key_length) {
 867                 /* Send request to firmware */
 868                 ret = mwifiex_send_cmd_async(priv,
 869                                              HostCmd_CMD_802_11_KEY_MATERIAL,
 870                                              HostCmd_ACT_GEN_SET, 0, NULL);
 871                 if (ret)
 872                         return ret;
 873         }
 874         if (priv->sec_info.wep_enabled)
 875                 priv->curr_pkt_filter |= HostCmd_ACT_MAC_WEP_ENABLE;
 876         else
 877                 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_WEP_ENABLE;
 878
 879         ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_MAC_CONTROL,
 880                                     HostCmd_ACT_GEN_SET, 0,
 881                                     &priv->curr_pkt_filter);
 882
 883         return ret;
 884 }
 885
 886 /*
 887  * IOCTL request handler to set WPA key.
 888  *
 889  * This function prepares the correct firmware command and
 890  * issues it, after validation checks.
 891  *
 892  * Current driver only supports key length of up to 32 bytes.
 893  *
 894  * This function can also be used to disable a currently set key.
 895  */
 896 static int mwifiex_sec_ioctl_set_wpa_key(struct mwifiex_private *priv,
 897                               struct mwifiex_ds_encrypt_key *encrypt_key)
 898 {
 899         int ret;
 900         u8 remove_key = false;
 901         struct host_cmd_ds_802_11_key_material *ibss_key;
 902
 903         /* Current driver only supports key length of up to 32 bytes */
 904         if (encrypt_key->key_len > WLAN_MAX_KEY_LEN) {
 905                 dev_err(priv->adapter->dev, "key length too long\n");
 906                 return -1;
 907         }
 908
 909         if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
 910                 /*
 911                  * IBSS/WPA-None uses only one key (Group) for both receiving
 912                  * and sending unicast and multicast packets.
 913                  */
 914                 /* Send the key as PTK to firmware */
 915                 encrypt_key->key_index = MWIFIEX_KEY_INDEX_UNICAST;
 916                 ret = mwifiex_send_cmd_async(priv,
 917                                              HostCmd_CMD_802_11_KEY_MATERIAL,
 918                                              HostCmd_ACT_GEN_SET,
 919                                              KEY_INFO_ENABLED, encrypt_key);
 920                 if (ret)
 921                         return ret;
 922
 923                 ibss_key = &priv->aes_key;
 924                 memset(ibss_key, 0,
 925                        sizeof(struct host_cmd_ds_802_11_key_material));
 926                 /* Copy the key in the driver */
 927                 memcpy(ibss_key->key_param_set.key, encrypt_key->key_material,
 928                        encrypt_key->key_len);
 929                 memcpy(&ibss_key->key_param_set.key_len, &encrypt_key->key_len,
 930                        sizeof(ibss_key->key_param_set.key_len));
 931                 ibss_key->key_param_set.key_type_id
 932                         = cpu_to_le16(KEY_TYPE_ID_TKIP);
 933                 ibss_key->key_param_set.key_info = cpu_to_le16(KEY_ENABLED);
 934
 935                 /* Send the key as GTK to firmware */
 936                 encrypt_key->key_index = ~MWIFIEX_KEY_INDEX_UNICAST;
 937         }
 938
 939         if (!encrypt_key->key_index)
 940                 encrypt_key->key_index = MWIFIEX_KEY_INDEX_UNICAST;
 941
 942         if (remove_key)
 943                 ret = mwifiex_send_cmd_sync(priv,
 944                                             HostCmd_CMD_802_11_KEY_MATERIAL,
 945                                             HostCmd_ACT_GEN_SET,
 946                                             !KEY_INFO_ENABLED, encrypt_key);
 947         else
 948                 ret = mwifiex_send_cmd_sync(priv,
 949                                             HostCmd_CMD_802_11_KEY_MATERIAL,
 950                                             HostCmd_ACT_GEN_SET,
 951                                             KEY_INFO_ENABLED, encrypt_key);
 952
 953         return ret;
 954 }
 955
 956 /*
 957  * IOCTL request handler to set/get network keys.
 958  *
 959  * This is a generic key handling function which supports WEP, WPA
 960  * and WAPI.
 961  */
 962 static int
 963 mwifiex_sec_ioctl_encrypt_key(struct mwifiex_private *priv,
 964                               struct mwifiex_ds_encrypt_key *encrypt_key)
 965 {
 966         int status;
 967
 968         if (encrypt_key->is_wapi_key)
 969                 status = mwifiex_sec_ioctl_set_wapi_key(priv, encrypt_key);
 970         else if (encrypt_key->key_len > WLAN_KEY_LEN_WEP104)
 971                 status = mwifiex_sec_ioctl_set_wpa_key(priv, encrypt_key);
 972         else
 973                 status = mwifiex_sec_ioctl_set_wep_key(priv, encrypt_key);
 974         return status;
 975 }
 976
 977 /*
 978  * This function returns the driver version.
 979  */
 980 int
 981 mwifiex_drv_get_driver_version(struct mwifiex_adapter *adapter, char *version,
 982                                int max_len)
 983 {
 984         union {
 985                 u32 l;
 986                 u8 c[4];
 987         } ver;
 988         char fw_ver[32];
 989
 990         ver.l = adapter->fw_release_number;
 991         sprintf(fw_ver, "%u.%u.%u.p%u", ver.c[2], ver.c[1], ver.c[0], ver.c[3]);
 992
 993         snprintf(version, max_len, driver_version, fw_ver);
 994
 995         dev_dbg(adapter->dev, "info: MWIFIEX VERSION: %s\n", version);
 996
 997         return 0;
 998 }
 999
1000 /*
1001  * Sends IOCTL request to set encoding parameters.
1002  *
1003  * This function allocates the IOCTL request buffer, fills it
1004  * with requisite parameters and calls the IOCTL handler.
1005  */
1006 int mwifiex_set_encode(struct mwifiex_private *priv, struct key_params *kp,
1007                        const u8 *key, int key_len, u8 key_index,
1008                        const u8 *mac_addr, int disable)
1009 {
1010         struct mwifiex_ds_encrypt_key encrypt_key;
1011
1012         memset(&encrypt_key, 0, sizeof(struct mwifiex_ds_encrypt_key));
1013         encrypt_key.key_len = key_len;
1014
1015         if (kp && kp->cipher == WLAN_CIPHER_SUITE_AES_CMAC)
1016                 encrypt_key.is_igtk_key = true;
1017
1018         if (!disable) {
1019                 encrypt_key.key_index = key_index;
1020                 if (key_len)
1021                         memcpy(encrypt_key.key_material, key, key_len);
1022                 if (mac_addr)
1023                         memcpy(encrypt_key.mac_addr, mac_addr, ETH_ALEN);
1024                 if (kp && kp->seq && kp->seq_len)
1025                         memcpy(encrypt_key.pn, kp->seq, kp->seq_len);
1026         } else {
1027                 encrypt_key.key_disable = true;
1028                 if (mac_addr)
1029                         memcpy(encrypt_key.mac_addr, mac_addr, ETH_ALEN);
1030         }
1031
1032         return mwifiex_sec_ioctl_encrypt_key(priv, &encrypt_key);
1033 }
1034
1035 /*
1036  * Sends IOCTL request to get extended version.
1037  *
1038  * This function allocates the IOCTL request buffer, fills it
1039  * with requisite parameters and calls the IOCTL handler.
1040  */
1041 int
1042 mwifiex_get_ver_ext(struct mwifiex_private *priv)
1043 {
1044         struct mwifiex_ver_ext ver_ext;
1045
1046         memset(&ver_ext, 0, sizeof(struct host_cmd_ds_version_ext));
1047         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_VERSION_EXT,
1048                                   HostCmd_ACT_GEN_GET, 0, &ver_ext))
1049                 return -1;
1050
1051         return 0;
1052 }
1053
1054 int
1055 mwifiex_remain_on_chan_cfg(struct mwifiex_private *priv, u16 action,
1056                            struct ieee80211_channel *chan,
1057                            unsigned int duration)
1058 {
1059         struct host_cmd_ds_remain_on_chan roc_cfg;
1060         u8 sc;
1061
1062         memset(&roc_cfg, 0, sizeof(roc_cfg));
1063         roc_cfg.action = cpu_to_le16(action);
1064         if (action == HostCmd_ACT_GEN_SET) {
1065                 roc_cfg.band_cfg = chan->band;
1066                 sc = mwifiex_chan_type_to_sec_chan_offset(NL80211_CHAN_NO_HT);
1067                 roc_cfg.band_cfg |= (sc << 2);
1068
1069                 roc_cfg.channel =
1070                         ieee80211_frequency_to_channel(chan->center_freq);
1071                 roc_cfg.duration = cpu_to_le32(duration);
1072         }
1073         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_REMAIN_ON_CHAN,
1074                                   action, 0, &roc_cfg)) {
1075                 dev_err(priv->adapter->dev, "failed to remain on channel\n");
1076                 return -1;
1077         }
1078
1079         return roc_cfg.status;
1080 }
1081
1082 int
1083 mwifiex_set_bss_role(struct mwifiex_private *priv, u8 bss_role)
1084 {
1085         if (GET_BSS_ROLE(priv) == bss_role) {
1086                 dev_dbg(priv->adapter->dev,
1087                         "info: already in the desired role.\n");
1088                 return 0;
1089         }
1090
1091         mwifiex_free_priv(priv);
1092         mwifiex_init_priv(priv);
1093
1094         priv->bss_role = bss_role;
1095         switch (bss_role) {
1096         case MWIFIEX_BSS_ROLE_UAP:
1097                 priv->bss_mode = NL80211_IFTYPE_AP;
1098                 break;
1099         case MWIFIEX_BSS_ROLE_STA:
1100         case MWIFIEX_BSS_ROLE_ANY:
1101         default:
1102                 priv->bss_mode = NL80211_IFTYPE_STATION;
1103                 break;
1104         }
1105
1106         mwifiex_send_cmd_sync(priv, HostCmd_CMD_SET_BSS_MODE,
1107                               HostCmd_ACT_GEN_SET, 0, NULL);
1108
1109         return mwifiex_sta_init_cmd(priv, false);
1110 }
1111
1112 /*
1113  * Sends IOCTL request to get statistics information.
1114  *
1115  * This function allocates the IOCTL request buffer, fills it
1116  * with requisite parameters and calls the IOCTL handler.
1117  */
1118 int
1119 mwifiex_get_stats_info(struct mwifiex_private *priv,
1120                        struct mwifiex_ds_get_stats *log)
1121 {
1122         return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_GET_LOG,
1123                                      HostCmd_ACT_GEN_GET, 0, log);
1124 }
1125
1126 /*
1127  * IOCTL request handler to read/write register.
1128  *
1129  * This function prepares the correct firmware command and
1130  * issues it.
1131  *
1132  * Access to the following registers are supported -
1133  *      - MAC
1134  *      - BBP
1135  *      - RF
1136  *      - PMIC
1137  *      - CAU
1138  */
1139 static int mwifiex_reg_mem_ioctl_reg_rw(struct mwifiex_private *priv,
1140                                         struct mwifiex_ds_reg_rw *reg_rw,
1141                                         u16 action)
1142 {
1143         u16 cmd_no;
1144
1145         switch (le32_to_cpu(reg_rw->type)) {
1146         case MWIFIEX_REG_MAC:
1147                 cmd_no = HostCmd_CMD_MAC_REG_ACCESS;
1148                 break;
1149         case MWIFIEX_REG_BBP:
1150                 cmd_no = HostCmd_CMD_BBP_REG_ACCESS;
1151                 break;
1152         case MWIFIEX_REG_RF:
1153                 cmd_no = HostCmd_CMD_RF_REG_ACCESS;
1154                 break;
1155         case MWIFIEX_REG_PMIC:
1156                 cmd_no = HostCmd_CMD_PMIC_REG_ACCESS;
1157                 break;
1158         case MWIFIEX_REG_CAU:
1159                 cmd_no = HostCmd_CMD_CAU_REG_ACCESS;
1160                 break;
1161         default:
1162                 return -1;
1163         }
1164
1165         return mwifiex_send_cmd_sync(priv, cmd_no, action, 0, reg_rw);
1166
1167 }
1168
1169 /*
1170  * Sends IOCTL request to write to a register.
1171  *
1172  * This function allocates the IOCTL request buffer, fills it
1173  * with requisite parameters and calls the IOCTL handler.
1174  */
1175 int
1176 mwifiex_reg_write(struct mwifiex_private *priv, u32 reg_type,
1177                   u32 reg_offset, u32 reg_value)
1178 {
1179         struct mwifiex_ds_reg_rw reg_rw;
1180
1181         reg_rw.type = cpu_to_le32(reg_type);
1182         reg_rw.offset = cpu_to_le32(reg_offset);
1183         reg_rw.value = cpu_to_le32(reg_value);
1184
1185         return mwifiex_reg_mem_ioctl_reg_rw(priv, &reg_rw, HostCmd_ACT_GEN_SET);
1186 }
1187
1188 /*
1189  * Sends IOCTL request to read from a register.
1190  *
1191  * This function allocates the IOCTL request buffer, fills it
1192  * with requisite parameters and calls the IOCTL handler.
1193  */
1194 int
1195 mwifiex_reg_read(struct mwifiex_private *priv, u32 reg_type,
1196                  u32 reg_offset, u32 *value)
1197 {
1198         int ret;
1199         struct mwifiex_ds_reg_rw reg_rw;
1200
1201         reg_rw.type = cpu_to_le32(reg_type);
1202         reg_rw.offset = cpu_to_le32(reg_offset);
1203         ret = mwifiex_reg_mem_ioctl_reg_rw(priv, &reg_rw, HostCmd_ACT_GEN_GET);
1204
1205         if (ret)
1206                 goto done;
1207
1208         *value = le32_to_cpu(reg_rw.value);
1209
1210 done:
1211         return ret;
1212 }
1213
1214 /*
1215  * Sends IOCTL request to read from EEPROM.
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_eeprom_read(struct mwifiex_private *priv, u16 offset, u16 bytes,
1222                     u8 *value)
1223 {
1224         int ret;
1225         struct mwifiex_ds_read_eeprom rd_eeprom;
1226
1227         rd_eeprom.offset = cpu_to_le16((u16) offset);
1228         rd_eeprom.byte_count = cpu_to_le16((u16) bytes);
1229
1230         /* Send request to firmware */
1231         ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_EEPROM_ACCESS,
1232                                     HostCmd_ACT_GEN_GET, 0, &rd_eeprom);
1233
1234         if (!ret)
1235                 memcpy(value, rd_eeprom.value, MAX_EEPROM_DATA);
1236         return ret;
1237 }
1238
1239 /*
1240  * This function sets a generic IE. In addition to generic IE, it can
1241  * also handle WPA, WPA2 and WAPI IEs.
1242  */
1243 static int
1244 mwifiex_set_gen_ie_helper(struct mwifiex_private *priv, u8 *ie_data_ptr,
1245                           u16 ie_len)
1246 {
1247         int ret = 0;
1248         struct ieee_types_vendor_header *pvendor_ie;
1249         const u8 wpa_oui[] = { 0x00, 0x50, 0xf2, 0x01 };
1250         const u8 wps_oui[] = { 0x00, 0x50, 0xf2, 0x04 };
1251
1252         /* If the passed length is zero, reset the buffer */
1253         if (!ie_len) {
1254                 priv->gen_ie_buf_len = 0;
1255                 priv->wps.session_enable = false;
1256
1257                 return 0;
1258         } else if (!ie_data_ptr) {
1259                 return -1;
1260         }
1261         pvendor_ie = (struct ieee_types_vendor_header *) ie_data_ptr;
1262         /* Test to see if it is a WPA IE, if not, then it is a gen IE */
1263         if (((pvendor_ie->element_id == WLAN_EID_VENDOR_SPECIFIC) &&
1264              (!memcmp(pvendor_ie->oui, wpa_oui, sizeof(wpa_oui)))) ||
1265             (pvendor_ie->element_id == WLAN_EID_RSN)) {
1266
1267                 /* IE is a WPA/WPA2 IE so call set_wpa function */
1268                 ret = mwifiex_set_wpa_ie_helper(priv, ie_data_ptr, ie_len);
1269                 priv->wps.session_enable = false;
1270
1271                 return ret;
1272         } else if (pvendor_ie->element_id == WLAN_EID_BSS_AC_ACCESS_DELAY) {
1273                 /* IE is a WAPI IE so call set_wapi function */
1274                 ret = mwifiex_set_wapi_ie(priv, ie_data_ptr, ie_len);
1275
1276                 return ret;
1277         }
1278         /*
1279          * Verify that the passed length is not larger than the
1280          * available space remaining in the buffer
1281          */
1282         if (ie_len < (sizeof(priv->gen_ie_buf) - priv->gen_ie_buf_len)) {
1283
1284                 /* Test to see if it is a WPS IE, if so, enable
1285                  * wps session flag
1286                  */
1287                 pvendor_ie = (struct ieee_types_vendor_header *) ie_data_ptr;
1288                 if ((pvendor_ie->element_id == WLAN_EID_VENDOR_SPECIFIC) &&
1289                     (!memcmp(pvendor_ie->oui, wps_oui, sizeof(wps_oui)))) {
1290                         priv->wps.session_enable = true;
1291                         dev_dbg(priv->adapter->dev,
1292                                 "info: WPS Session Enabled.\n");
1293                         ret = mwifiex_set_wps_ie(priv, ie_data_ptr, ie_len);
1294                 }
1295
1296                 /* Append the passed data to the end of the
1297                    genIeBuffer */
1298                 memcpy(priv->gen_ie_buf + priv->gen_ie_buf_len, ie_data_ptr,
1299                        ie_len);
1300                 /* Increment the stored buffer length by the
1301                    size passed */
1302                 priv->gen_ie_buf_len += ie_len;
1303         } else {
1304                 /* Passed data does not fit in the remaining
1305                    buffer space */
1306                 ret = -1;
1307         }
1308
1309         /* Return 0, or -1 for error case */
1310         return ret;
1311 }
1312
1313 /*
1314  * IOCTL request handler to set/get generic IE.
1315  *
1316  * In addition to various generic IEs, this function can also be
1317  * used to set the ARP filter.
1318  */
1319 static int mwifiex_misc_ioctl_gen_ie(struct mwifiex_private *priv,
1320                                      struct mwifiex_ds_misc_gen_ie *gen_ie,
1321                                      u16 action)
1322 {
1323         struct mwifiex_adapter *adapter = priv->adapter;
1324
1325         switch (gen_ie->type) {
1326         case MWIFIEX_IE_TYPE_GEN_IE:
1327                 if (action == HostCmd_ACT_GEN_GET) {
1328                         gen_ie->len = priv->wpa_ie_len;
1329                         memcpy(gen_ie->ie_data, priv->wpa_ie, gen_ie->len);
1330                 } else {
1331                         mwifiex_set_gen_ie_helper(priv, gen_ie->ie_data,
1332                                                   (u16) gen_ie->len);
1333                 }
1334                 break;
1335         case MWIFIEX_IE_TYPE_ARP_FILTER:
1336                 memset(adapter->arp_filter, 0, sizeof(adapter->arp_filter));
1337                 if (gen_ie->len > ARP_FILTER_MAX_BUF_SIZE) {
1338                         adapter->arp_filter_size = 0;
1339                         dev_err(adapter->dev, "invalid ARP filter size\n");
1340                         return -1;
1341                 } else {
1342                         memcpy(adapter->arp_filter, gen_ie->ie_data,
1343                                gen_ie->len);
1344                         adapter->arp_filter_size = gen_ie->len;
1345                 }
1346                 break;
1347         default:
1348                 dev_err(adapter->dev, "invalid IE type\n");
1349                 return -1;
1350         }
1351         return 0;
1352 }
1353
1354 /*
1355  * Sends IOCTL request to set a generic IE.
1356  *
1357  * This function allocates the IOCTL request buffer, fills it
1358  * with requisite parameters and calls the IOCTL handler.
1359  */
1360 int
1361 mwifiex_set_gen_ie(struct mwifiex_private *priv, u8 *ie, int ie_len)
1362 {
1363         struct mwifiex_ds_misc_gen_ie gen_ie;
1364
1365         if (ie_len > IEEE_MAX_IE_SIZE)
1366                 return -EFAULT;
1367
1368         gen_ie.type = MWIFIEX_IE_TYPE_GEN_IE;
1369         gen_ie.len = ie_len;
1370         memcpy(gen_ie.ie_data, ie, ie_len);
1371         if (mwifiex_misc_ioctl_gen_ie(priv, &gen_ie, HostCmd_ACT_GEN_SET))
1372                 return -EFAULT;
1373
1374         return 0;
1375 }