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         dev_dbg(adapter->dev, "cmd pending\n");
  63         atomic_inc(&adapter->cmd_pending);
  64
  65         /* Wait for completion */
  66         status = wait_event_interruptible(adapter->cmd_wait_q.wait,
  67                                           *(cmd_queued->condition));
  68         if (status) {
  69                 dev_err(adapter->dev, "cmd_wait_q terminated: %d\n", status);
  70                 return status;
  71         }
  72
  73         status = adapter->cmd_wait_q.status;
  74         adapter->cmd_wait_q.status = 0;
  75
  76         return status;
  77 }
  78
  79 /*
  80  * This function prepares the correct firmware command and
  81  * issues it to set the multicast list.
  82  *
  83  * This function can be used to enable promiscuous mode, or enable all
  84  * multicast packets, or to enable selective multicast.
  85  */
  86 int mwifiex_request_set_multicast_list(struct mwifiex_private *priv,
  87                                 struct mwifiex_multicast_list *mcast_list)
  88 {
  89         int ret = 0;
  90         u16 old_pkt_filter;
  91
  92         old_pkt_filter = priv->curr_pkt_filter;
  93
  94         if (mcast_list->mode == MWIFIEX_PROMISC_MODE) {
  95                 dev_dbg(priv->adapter->dev, "info: Enable Promiscuous mode\n");
  96                 priv->curr_pkt_filter |= HostCmd_ACT_MAC_PROMISCUOUS_ENABLE;
  97                 priv->curr_pkt_filter &=
  98                         ~HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE;
  99         } else {
 100                 /* Multicast */
 101                 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_PROMISCUOUS_ENABLE;
 102                 if (mcast_list->mode == MWIFIEX_MULTICAST_MODE) {
 103                         dev_dbg(priv->adapter->dev,
 104                                 "info: Enabling All Multicast!\n");
 105                         priv->curr_pkt_filter |=
 106                                 HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE;
 107                 } else {
 108                         priv->curr_pkt_filter &=
 109                                 ~HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE;
 110                         if (mcast_list->num_multicast_addr) {
 111                                 dev_dbg(priv->adapter->dev,
 112                                         "info: Set multicast list=%d\n",
 113                                        mcast_list->num_multicast_addr);
 114                                 /* Set multicast addresses to firmware */
 115                                 if (old_pkt_filter == priv->curr_pkt_filter) {
 116                                         /* Send request to firmware */
 117                                         ret = mwifiex_send_cmd_async(priv,
 118                                                 HostCmd_CMD_MAC_MULTICAST_ADR,
 119                                                 HostCmd_ACT_GEN_SET, 0,
 120                                                 mcast_list);
 121                                 } else {
 122                                         /* Send request to firmware */
 123                                         ret = mwifiex_send_cmd_async(priv,
 124                                                 HostCmd_CMD_MAC_MULTICAST_ADR,
 125                                                 HostCmd_ACT_GEN_SET, 0,
 126                                                 mcast_list);
 127                                 }
 128                         }
 129                 }
 130         }
 131         dev_dbg(priv->adapter->dev,
 132                 "info: old_pkt_filter=%#x, curr_pkt_filter=%#x\n",
 133                old_pkt_filter, priv->curr_pkt_filter);
 134         if (old_pkt_filter != priv->curr_pkt_filter) {
 135                 ret = mwifiex_send_cmd_async(priv, HostCmd_CMD_MAC_CONTROL,
 136                                              HostCmd_ACT_GEN_SET,
 137                                              0, &priv->curr_pkt_filter);
 138         }
 139
 140         return ret;
 141 }
 142
 143 /*
 144  * This function fills bss descriptor structure using provided
 145  * information.
 146  */
 147 int mwifiex_fill_new_bss_desc(struct mwifiex_private *priv,
 148                               struct cfg80211_bss *bss,
 149                               struct mwifiex_bssdescriptor *bss_desc)
 150 {
 151         int ret;
 152         u8 *beacon_ie;
 153         size_t beacon_ie_len;
 154         struct mwifiex_bss_priv *bss_priv = (void *)bss->priv;
 155         const struct cfg80211_bss_ies *ies;
 156
 157         rcu_read_lock();
 158         ies = rcu_dereference(bss->ies);
 159         beacon_ie = kmemdup(ies->data, ies->len, GFP_ATOMIC);
 160         beacon_ie_len = ies->len;
 161         bss_desc->timestamp = ies->tsf;
 162         rcu_read_unlock();
 163
 164         if (!beacon_ie) {
 165                 dev_err(priv->adapter->dev, " failed to alloc beacon_ie\n");
 166                 return -ENOMEM;
 167         }
 168
 169         memcpy(bss_desc->mac_address, bss->bssid, ETH_ALEN);
 170         bss_desc->rssi = bss->signal;
 171         bss_desc->beacon_buf = beacon_ie;
 172         bss_desc->beacon_buf_size = beacon_ie_len;
 173         bss_desc->beacon_period = bss->beacon_interval;
 174         bss_desc->cap_info_bitmap = bss->capability;
 175         bss_desc->bss_band = bss_priv->band;
 176         bss_desc->fw_tsf = bss_priv->fw_tsf;
 177         if (bss_desc->cap_info_bitmap & WLAN_CAPABILITY_PRIVACY) {
 178                 dev_dbg(priv->adapter->dev, "info: InterpretIE: AP WEP enabled\n");
 179                 bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_8021X_WEP;
 180         } else {
 181                 bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_ACCEPT_ALL;
 182         }
 183         if (bss_desc->cap_info_bitmap & WLAN_CAPABILITY_IBSS)
 184                 bss_desc->bss_mode = NL80211_IFTYPE_ADHOC;
 185         else
 186                 bss_desc->bss_mode = NL80211_IFTYPE_STATION;
 187
 188         ret = mwifiex_update_bss_desc_with_ie(priv->adapter, bss_desc);
 189
 190         kfree(beacon_ie);
 191         return ret;
 192 }
 193
 194 static int mwifiex_process_country_ie(struct mwifiex_private *priv,
 195                                       struct cfg80211_bss *bss)
 196 {
 197         const u8 *country_ie;
 198         u8 country_ie_len;
 199         struct mwifiex_802_11d_domain_reg *domain_info =
 200                                         &priv->adapter->domain_reg;
 201
 202         rcu_read_lock();
 203         country_ie = ieee80211_bss_get_ie(bss, WLAN_EID_COUNTRY);
 204         if (!country_ie) {
 205                 rcu_read_unlock();
 206                 return 0;
 207         }
 208
 209         country_ie_len = country_ie[1];
 210         if (country_ie_len < IEEE80211_COUNTRY_IE_MIN_LEN) {
 211                 rcu_read_unlock();
 212                 return 0;
 213         }
 214
 215         domain_info->country_code[0] = country_ie[2];
 216         domain_info->country_code[1] = country_ie[3];
 217         domain_info->country_code[2] = ' ';
 218
 219         country_ie_len -= IEEE80211_COUNTRY_STRING_LEN;
 220
 221         domain_info->no_of_triplet =
 222                 country_ie_len / sizeof(struct ieee80211_country_ie_triplet);
 223
 224         memcpy((u8 *)domain_info->triplet,
 225                &country_ie[2] + IEEE80211_COUNTRY_STRING_LEN, country_ie_len);
 226
 227         rcu_read_unlock();
 228
 229         if (mwifiex_send_cmd_async(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
 230                                    HostCmd_ACT_GEN_SET, 0, NULL)) {
 231                 wiphy_err(priv->adapter->wiphy,
 232                           "11D: setting domain info in FW\n");
 233                 return -1;
 234         }
 235
 236         return 0;
 237 }
 238
 239 /*
 240  * In Ad-Hoc mode, the IBSS is created if not found in scan list.
 241  * In both Ad-Hoc and infra mode, an deauthentication is performed
 242  * first.
 243  */
 244 int mwifiex_bss_start(struct mwifiex_private *priv, struct cfg80211_bss *bss,
 245                       struct cfg80211_ssid *req_ssid)
 246 {
 247         int ret;
 248         struct mwifiex_adapter *adapter = priv->adapter;
 249         struct mwifiex_bssdescriptor *bss_desc = NULL;
 250
 251         priv->scan_block = false;
 252
 253         if (bss) {
 254                 mwifiex_process_country_ie(priv, bss);
 255
 256                 /* Allocate and fill new bss descriptor */
 257                 bss_desc = kzalloc(sizeof(struct mwifiex_bssdescriptor),
 258                                    GFP_KERNEL);
 259                 if (!bss_desc)
 260                         return -ENOMEM;
 261
 262                 ret = mwifiex_fill_new_bss_desc(priv, bss, bss_desc);
 263                 if (ret)
 264                         goto done;
 265         }
 266
 267         if (priv->bss_mode == NL80211_IFTYPE_STATION) {
 268                 /* Infra mode */
 269                 ret = mwifiex_deauthenticate(priv, NULL);
 270                 if (ret)
 271                         goto done;
 272
 273                 if (bss_desc) {
 274                         u8 config_bands = 0;
 275
 276                         if (mwifiex_band_to_radio_type((u8) bss_desc->bss_band)
 277                             == HostCmd_SCAN_RADIO_TYPE_BG)
 278                                 config_bands = BAND_B | BAND_G | BAND_GN |
 279                                                BAND_GAC;
 280                         else
 281                                 config_bands = BAND_A | BAND_AN | BAND_AAC;
 282
 283                         if (!((config_bands | adapter->fw_bands) &
 284                               ~adapter->fw_bands))
 285                                 adapter->config_bands = config_bands;
 286                 }
 287
 288                 ret = mwifiex_check_network_compatibility(priv, bss_desc);
 289                 if (ret)
 290                         goto done;
 291
 292                 dev_dbg(adapter->dev, "info: SSID found in scan list ... "
 293                                       "associating...\n");
 294
 295                 mwifiex_stop_net_dev_queue(priv->netdev, adapter);
 296                 if (netif_carrier_ok(priv->netdev))
 297                         netif_carrier_off(priv->netdev);
 298
 299                 /* Clear any past association response stored for
 300                  * application retrieval */
 301                 priv->assoc_rsp_size = 0;
 302                 ret = mwifiex_associate(priv, bss_desc);
 303
 304                 /* If auth type is auto and association fails using open mode,
 305                  * try to connect using shared mode */
 306                 if (ret == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG &&
 307                     priv->sec_info.is_authtype_auto &&
 308                     priv->sec_info.wep_enabled) {
 309                         priv->sec_info.authentication_mode =
 310                                                 NL80211_AUTHTYPE_SHARED_KEY;
 311                         ret = mwifiex_associate(priv, bss_desc);
 312                 }
 313
 314                 if (bss)
 315                         cfg80211_put_bss(priv->adapter->wiphy, bss);
 316         } else {
 317                 /* Adhoc mode */
 318                 /* If the requested SSID matches current SSID, return */
 319                 if (bss_desc && bss_desc->ssid.ssid_len &&
 320                     (!mwifiex_ssid_cmp(&priv->curr_bss_params.bss_descriptor.
 321                                        ssid, &bss_desc->ssid))) {
 322                         kfree(bss_desc);
 323                         return 0;
 324                 }
 325
 326                 /* Exit Adhoc mode first */
 327                 dev_dbg(adapter->dev, "info: Sending Adhoc Stop\n");
 328                 ret = mwifiex_deauthenticate(priv, NULL);
 329                 if (ret)
 330                         goto done;
 331
 332                 priv->adhoc_is_link_sensed = false;
 333
 334                 ret = mwifiex_check_network_compatibility(priv, bss_desc);
 335
 336                 mwifiex_stop_net_dev_queue(priv->netdev, adapter);
 337                 if (netif_carrier_ok(priv->netdev))
 338                         netif_carrier_off(priv->netdev);
 339
 340                 if (!ret) {
 341                         dev_dbg(adapter->dev, "info: network found in scan"
 342                                                         " list. Joining...\n");
 343                         ret = mwifiex_adhoc_join(priv, bss_desc);
 344                         if (bss)
 345                                 cfg80211_put_bss(priv->adapter->wiphy, bss);
 346                 } else {
 347                         dev_dbg(adapter->dev, "info: Network not found in "
 348                                 "the list, creating adhoc with ssid = %s\n",
 349                                 req_ssid->ssid);
 350                         ret = mwifiex_adhoc_start(priv, req_ssid);
 351                 }
 352         }
 353
 354 done:
 355         kfree(bss_desc);
 356         return ret;
 357 }
 358
 359 /*
 360  * IOCTL request handler to set host sleep configuration.
 361  *
 362  * This function prepares the correct firmware command and
 363  * issues it.
 364  */
 365 static int mwifiex_set_hs_params(struct mwifiex_private *priv, u16 action,
 366                                  int cmd_type, struct mwifiex_ds_hs_cfg *hs_cfg)
 367
 368 {
 369         struct mwifiex_adapter *adapter = priv->adapter;
 370         int status = 0;
 371         u32 prev_cond = 0;
 372
 373         if (!hs_cfg)
 374                 return -ENOMEM;
 375
 376         switch (action) {
 377         case HostCmd_ACT_GEN_SET:
 378                 if (adapter->pps_uapsd_mode) {
 379                         dev_dbg(adapter->dev, "info: Host Sleep IOCTL"
 380                                 " is blocked in UAPSD/PPS mode\n");
 381                         status = -1;
 382                         break;
 383                 }
 384                 if (hs_cfg->is_invoke_hostcmd) {
 385                         if (hs_cfg->conditions == HOST_SLEEP_CFG_CANCEL) {
 386                                 if (!adapter->is_hs_configured)
 387                                         /* Already cancelled */
 388                                         break;
 389                                 /* Save previous condition */
 390                                 prev_cond = le32_to_cpu(adapter->hs_cfg
 391                                                         .conditions);
 392                                 adapter->hs_cfg.conditions =
 393                                                 cpu_to_le32(hs_cfg->conditions);
 394                         } else if (hs_cfg->conditions) {
 395                                 adapter->hs_cfg.conditions =
 396                                                 cpu_to_le32(hs_cfg->conditions);
 397                                 adapter->hs_cfg.gpio = (u8)hs_cfg->gpio;
 398                                 if (hs_cfg->gap)
 399                                         adapter->hs_cfg.gap = (u8)hs_cfg->gap;
 400                         } else if (adapter->hs_cfg.conditions
 401                                    == cpu_to_le32(HOST_SLEEP_CFG_CANCEL)) {
 402                                 /* Return failure if no parameters for HS
 403                                    enable */
 404                                 status = -1;
 405                                 break;
 406                         }
 407                         if (cmd_type == MWIFIEX_SYNC_CMD)
 408                                 status = mwifiex_send_cmd_sync(priv,
 409                                                 HostCmd_CMD_802_11_HS_CFG_ENH,
 410                                                 HostCmd_ACT_GEN_SET, 0,
 411                                                 &adapter->hs_cfg);
 412                         else
 413                                 status = mwifiex_send_cmd_async(priv,
 414                                                 HostCmd_CMD_802_11_HS_CFG_ENH,
 415                                                 HostCmd_ACT_GEN_SET, 0,
 416                                                 &adapter->hs_cfg);
 417                         if (hs_cfg->conditions == HOST_SLEEP_CFG_CANCEL)
 418                                 /* Restore previous condition */
 419                                 adapter->hs_cfg.conditions =
 420                                                 cpu_to_le32(prev_cond);
 421                 } else {
 422                         adapter->hs_cfg.conditions =
 423                                                 cpu_to_le32(hs_cfg->conditions);
 424                         adapter->hs_cfg.gpio = (u8)hs_cfg->gpio;
 425                         adapter->hs_cfg.gap = (u8)hs_cfg->gap;
 426                 }
 427                 break;
 428         case HostCmd_ACT_GEN_GET:
 429                 hs_cfg->conditions = le32_to_cpu(adapter->hs_cfg.conditions);
 430                 hs_cfg->gpio = adapter->hs_cfg.gpio;
 431                 hs_cfg->gap = adapter->hs_cfg.gap;
 432                 break;
 433         default:
 434                 status = -1;
 435                 break;
 436         }
 437
 438         return status;
 439 }
 440
 441 /*
 442  * Sends IOCTL request to cancel the existing Host Sleep configuration.
 443  *
 444  * This function allocates the IOCTL request buffer, fills it
 445  * with requisite parameters and calls the IOCTL handler.
 446  */
 447 int mwifiex_cancel_hs(struct mwifiex_private *priv, int cmd_type)
 448 {
 449         struct mwifiex_ds_hs_cfg hscfg;
 450
 451         hscfg.conditions = HOST_SLEEP_CFG_CANCEL;
 452         hscfg.is_invoke_hostcmd = true;
 453
 454         return mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_SET,
 455                                     cmd_type, &hscfg);
 456 }
 457 EXPORT_SYMBOL_GPL(mwifiex_cancel_hs);
 458
 459 /*
 460  * Sends IOCTL request to cancel the existing Host Sleep configuration.
 461  *
 462  * This function allocates the IOCTL request buffer, fills it
 463  * with requisite parameters and calls the IOCTL handler.
 464  */
 465 int mwifiex_enable_hs(struct mwifiex_adapter *adapter)
 466 {
 467         struct mwifiex_ds_hs_cfg hscfg;
 468         struct mwifiex_private *priv;
 469         int i;
 470
 471         if (disconnect_on_suspend) {
 472                 for (i = 0; i < adapter->priv_num; i++) {
 473                         priv = adapter->priv[i];
 474                         if (priv)
 475                                 mwifiex_deauthenticate(priv, NULL);
 476                 }
 477         }
 478
 479         if (adapter->hs_activated) {
 480                 dev_dbg(adapter->dev, "cmd: HS Already activated\n");
 481                 return true;
 482         }
 483
 484         adapter->hs_activate_wait_q_woken = false;
 485
 486         memset(&hscfg, 0, sizeof(struct mwifiex_ds_hs_cfg));
 487         hscfg.is_invoke_hostcmd = true;
 488
 489         if (mwifiex_set_hs_params(mwifiex_get_priv(adapter,
 490                                                    MWIFIEX_BSS_ROLE_STA),
 491                                   HostCmd_ACT_GEN_SET, MWIFIEX_SYNC_CMD,
 492                                   &hscfg)) {
 493                 dev_err(adapter->dev, "IOCTL request HS enable failed\n");
 494                 return false;
 495         }
 496
 497         if (wait_event_interruptible(adapter->hs_activate_wait_q,
 498                                      adapter->hs_activate_wait_q_woken)) {
 499                 dev_err(adapter->dev, "hs_activate_wait_q terminated\n");
 500                 return false;
 501         }
 502
 503         return true;
 504 }
 505 EXPORT_SYMBOL_GPL(mwifiex_enable_hs);
 506
 507 /*
 508  * IOCTL request handler to get BSS information.
 509  *
 510  * This function collates the information from different driver structures
 511  * to send to the user.
 512  */
 513 int mwifiex_get_bss_info(struct mwifiex_private *priv,
 514                          struct mwifiex_bss_info *info)
 515 {
 516         struct mwifiex_adapter *adapter = priv->adapter;
 517         struct mwifiex_bssdescriptor *bss_desc;
 518
 519         if (!info)
 520                 return -1;
 521
 522         bss_desc = &priv->curr_bss_params.bss_descriptor;
 523
 524         info->bss_mode = priv->bss_mode;
 525
 526         memcpy(&info->ssid, &bss_desc->ssid, sizeof(struct cfg80211_ssid));
 527
 528         memcpy(&info->bssid, &bss_desc->mac_address, ETH_ALEN);
 529
 530         info->bss_chan = bss_desc->channel;
 531
 532         memcpy(info->country_code, adapter->country_code,
 533                IEEE80211_COUNTRY_STRING_LEN);
 534
 535         info->media_connected = priv->media_connected;
 536
 537         info->max_power_level = priv->max_tx_power_level;
 538         info->min_power_level = priv->min_tx_power_level;
 539
 540         info->adhoc_state = priv->adhoc_state;
 541
 542         info->bcn_nf_last = priv->bcn_nf_last;
 543
 544         if (priv->sec_info.wep_enabled)
 545                 info->wep_status = true;
 546         else
 547                 info->wep_status = false;
 548
 549         info->is_hs_configured = adapter->is_hs_configured;
 550         info->is_deep_sleep = adapter->is_deep_sleep;
 551
 552         return 0;
 553 }
 554
 555 /*
 556  * The function disables auto deep sleep mode.
 557  */
 558 int mwifiex_disable_auto_ds(struct mwifiex_private *priv)
 559 {
 560         struct mwifiex_ds_auto_ds auto_ds;
 561
 562         auto_ds.auto_ds = DEEP_SLEEP_OFF;
 563
 564         return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_PS_MODE_ENH,
 565                                      DIS_AUTO_PS, BITMAP_AUTO_DS, &auto_ds);
 566 }
 567 EXPORT_SYMBOL_GPL(mwifiex_disable_auto_ds);
 568
 569 /*
 570  * Sends IOCTL request to get the data rate.
 571  *
 572  * This function allocates the IOCTL request buffer, fills it
 573  * with requisite parameters and calls the IOCTL handler.
 574  */
 575 int mwifiex_drv_get_data_rate(struct mwifiex_private *priv, u32 *rate)
 576 {
 577         int ret;
 578
 579         ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_TX_RATE_QUERY,
 580                                     HostCmd_ACT_GEN_GET, 0, NULL);
 581
 582         if (!ret) {
 583                 if (priv->is_data_rate_auto)
 584                         *rate = mwifiex_index_to_data_rate(priv, priv->tx_rate,
 585                                                            priv->tx_htinfo);
 586                 else
 587                         *rate = priv->data_rate;
 588         }
 589
 590         return ret;
 591 }
 592
 593 /*
 594  * IOCTL request handler to set tx power configuration.
 595  *
 596  * This function prepares the correct firmware command and
 597  * issues it.
 598  *
 599  * For non-auto power mode, all the following power groups are set -
 600  *      - Modulation class HR/DSSS
 601  *      - Modulation class OFDM
 602  *      - Modulation class HTBW20
 603  *      - Modulation class HTBW40
 604  */
 605 int mwifiex_set_tx_power(struct mwifiex_private *priv,
 606                          struct mwifiex_power_cfg *power_cfg)
 607 {
 608         int ret;
 609         struct host_cmd_ds_txpwr_cfg *txp_cfg;
 610         struct mwifiex_types_power_group *pg_tlv;
 611         struct mwifiex_power_group *pg;
 612         u8 *buf;
 613         u16 dbm = 0;
 614
 615         if (!power_cfg->is_power_auto) {
 616                 dbm = (u16) power_cfg->power_level;
 617                 if ((dbm < priv->min_tx_power_level) ||
 618                     (dbm > priv->max_tx_power_level)) {
 619                         dev_err(priv->adapter->dev, "txpower value %d dBm"
 620                                 " is out of range (%d dBm-%d dBm)\n",
 621                                 dbm, priv->min_tx_power_level,
 622                                 priv->max_tx_power_level);
 623                         return -1;
 624                 }
 625         }
 626         buf = kzalloc(MWIFIEX_SIZE_OF_CMD_BUFFER, GFP_KERNEL);
 627         if (!buf)
 628                 return -ENOMEM;
 629
 630         txp_cfg = (struct host_cmd_ds_txpwr_cfg *) buf;
 631         txp_cfg->action = cpu_to_le16(HostCmd_ACT_GEN_SET);
 632         if (!power_cfg->is_power_auto) {
 633                 txp_cfg->mode = cpu_to_le32(1);
 634                 pg_tlv = (struct mwifiex_types_power_group *)
 635                          (buf + sizeof(struct host_cmd_ds_txpwr_cfg));
 636                 pg_tlv->type = TLV_TYPE_POWER_GROUP;
 637                 pg_tlv->length = 4 * sizeof(struct mwifiex_power_group);
 638                 pg = (struct mwifiex_power_group *)
 639                      (buf + sizeof(struct host_cmd_ds_txpwr_cfg)
 640                       + sizeof(struct mwifiex_types_power_group));
 641                 /* Power group for modulation class HR/DSSS */
 642                 pg->first_rate_code = 0x00;
 643                 pg->last_rate_code = 0x03;
 644                 pg->modulation_class = MOD_CLASS_HR_DSSS;
 645                 pg->power_step = 0;
 646                 pg->power_min = (s8) dbm;
 647                 pg->power_max = (s8) dbm;
 648                 pg++;
 649                 /* Power group for modulation class OFDM */
 650                 pg->first_rate_code = 0x00;
 651                 pg->last_rate_code = 0x07;
 652                 pg->modulation_class = MOD_CLASS_OFDM;
 653                 pg->power_step = 0;
 654                 pg->power_min = (s8) dbm;
 655                 pg->power_max = (s8) dbm;
 656                 pg++;
 657                 /* Power group for modulation class HTBW20 */
 658                 pg->first_rate_code = 0x00;
 659                 pg->last_rate_code = 0x20;
 660                 pg->modulation_class = MOD_CLASS_HT;
 661                 pg->power_step = 0;
 662                 pg->power_min = (s8) dbm;
 663                 pg->power_max = (s8) dbm;
 664                 pg->ht_bandwidth = HT_BW_20;
 665                 pg++;
 666                 /* Power group for modulation class HTBW40 */
 667                 pg->first_rate_code = 0x00;
 668                 pg->last_rate_code = 0x20;
 669                 pg->modulation_class = MOD_CLASS_HT;
 670                 pg->power_step = 0;
 671                 pg->power_min = (s8) dbm;
 672                 pg->power_max = (s8) dbm;
 673                 pg->ht_bandwidth = HT_BW_40;
 674         }
 675         ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_TXPWR_CFG,
 676                                     HostCmd_ACT_GEN_SET, 0, buf);
 677
 678         kfree(buf);
 679         return ret;
 680 }
 681
 682 /*
 683  * IOCTL request handler to get power save mode.
 684  *
 685  * This function prepares the correct firmware command and
 686  * issues it.
 687  */
 688 int mwifiex_drv_set_power(struct mwifiex_private *priv, u32 *ps_mode)
 689 {
 690         int ret;
 691         struct mwifiex_adapter *adapter = priv->adapter;
 692         u16 sub_cmd;
 693
 694         if (*ps_mode)
 695                 adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_PSP;
 696         else
 697                 adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_CAM;
 698         sub_cmd = (*ps_mode) ? EN_AUTO_PS : DIS_AUTO_PS;
 699         ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_PS_MODE_ENH,
 700                                     sub_cmd, BITMAP_STA_PS, NULL);
 701         if ((!ret) && (sub_cmd == DIS_AUTO_PS))
 702                 ret = mwifiex_send_cmd_async(priv,
 703                                              HostCmd_CMD_802_11_PS_MODE_ENH,
 704                                              GET_PS, 0, NULL);
 705
 706         return ret;
 707 }
 708
 709 /*
 710  * IOCTL request handler to set/reset WPA IE.
 711  *
 712  * The supplied WPA IE is treated as a opaque buffer. Only the first field
 713  * is checked to determine WPA version. If buffer length is zero, the existing
 714  * WPA IE is reset.
 715  */
 716 static int mwifiex_set_wpa_ie_helper(struct mwifiex_private *priv,
 717                                      u8 *ie_data_ptr, u16 ie_len)
 718 {
 719         if (ie_len) {
 720                 if (ie_len > sizeof(priv->wpa_ie)) {
 721                         dev_err(priv->adapter->dev,
 722                                 "failed to copy WPA IE, too big\n");
 723                         return -1;
 724                 }
 725                 memcpy(priv->wpa_ie, ie_data_ptr, ie_len);
 726                 priv->wpa_ie_len = (u8) ie_len;
 727                 dev_dbg(priv->adapter->dev, "cmd: Set Wpa_ie_len=%d IE=%#x\n",
 728                         priv->wpa_ie_len, priv->wpa_ie[0]);
 729
 730                 if (priv->wpa_ie[0] == WLAN_EID_VENDOR_SPECIFIC) {
 731                         priv->sec_info.wpa_enabled = true;
 732                 } else if (priv->wpa_ie[0] == WLAN_EID_RSN) {
 733                         priv->sec_info.wpa2_enabled = true;
 734                 } else {
 735                         priv->sec_info.wpa_enabled = false;
 736                         priv->sec_info.wpa2_enabled = false;
 737                 }
 738         } else {
 739                 memset(priv->wpa_ie, 0, sizeof(priv->wpa_ie));
 740                 priv->wpa_ie_len = 0;
 741                 dev_dbg(priv->adapter->dev, "info: reset wpa_ie_len=%d IE=%#x\n",
 742                         priv->wpa_ie_len, priv->wpa_ie[0]);
 743                 priv->sec_info.wpa_enabled = false;
 744                 priv->sec_info.wpa2_enabled = false;
 745         }
 746
 747         return 0;
 748 }
 749
 750 /*
 751  * IOCTL request handler to set/reset WAPI IE.
 752  *
 753  * The supplied WAPI IE is treated as a opaque buffer. Only the first field
 754  * is checked to internally enable WAPI. If buffer length is zero, the existing
 755  * WAPI IE is reset.
 756  */
 757 static int mwifiex_set_wapi_ie(struct mwifiex_private *priv,
 758                                u8 *ie_data_ptr, u16 ie_len)
 759 {
 760         if (ie_len) {
 761                 if (ie_len > sizeof(priv->wapi_ie)) {
 762                         dev_dbg(priv->adapter->dev,
 763                                 "info: failed to copy WAPI IE, too big\n");
 764                         return -1;
 765                 }
 766                 memcpy(priv->wapi_ie, ie_data_ptr, ie_len);
 767                 priv->wapi_ie_len = ie_len;
 768                 dev_dbg(priv->adapter->dev, "cmd: Set wapi_ie_len=%d IE=%#x\n",
 769                         priv->wapi_ie_len, priv->wapi_ie[0]);
 770
 771                 if (priv->wapi_ie[0] == WLAN_EID_BSS_AC_ACCESS_DELAY)
 772                         priv->sec_info.wapi_enabled = true;
 773         } else {
 774                 memset(priv->wapi_ie, 0, sizeof(priv->wapi_ie));
 775                 priv->wapi_ie_len = ie_len;
 776                 dev_dbg(priv->adapter->dev,
 777                         "info: Reset wapi_ie_len=%d IE=%#x\n",
 778                        priv->wapi_ie_len, priv->wapi_ie[0]);
 779                 priv->sec_info.wapi_enabled = false;
 780         }
 781         return 0;
 782 }
 783
 784 /*
 785  * IOCTL request handler to set/reset WPS IE.
 786  *
 787  * The supplied WPS IE is treated as a opaque buffer. Only the first field
 788  * is checked to internally enable WPS. If buffer length is zero, the existing
 789  * WPS IE is reset.
 790  */
 791 static int mwifiex_set_wps_ie(struct mwifiex_private *priv,
 792                                u8 *ie_data_ptr, u16 ie_len)
 793 {
 794         if (ie_len) {
 795                 priv->wps_ie = kzalloc(MWIFIEX_MAX_VSIE_LEN, GFP_KERNEL);
 796                 if (!priv->wps_ie)
 797                         return -ENOMEM;
 798                 if (ie_len > sizeof(priv->wps_ie)) {
 799                         dev_dbg(priv->adapter->dev,
 800                                 "info: failed to copy WPS IE, too big\n");
 801                         kfree(priv->wps_ie);
 802                         return -1;
 803                 }
 804                 memcpy(priv->wps_ie, ie_data_ptr, ie_len);
 805                 priv->wps_ie_len = ie_len;
 806                 dev_dbg(priv->adapter->dev, "cmd: Set wps_ie_len=%d IE=%#x\n",
 807                         priv->wps_ie_len, priv->wps_ie[0]);
 808         } else {
 809                 kfree(priv->wps_ie);
 810                 priv->wps_ie_len = ie_len;
 811                 dev_dbg(priv->adapter->dev,
 812                         "info: Reset wps_ie_len=%d\n", priv->wps_ie_len);
 813         }
 814         return 0;
 815 }
 816
 817 /*
 818  * IOCTL request handler to set WAPI key.
 819  *
 820  * This function prepares the correct firmware command and
 821  * issues it.
 822  */
 823 static int mwifiex_sec_ioctl_set_wapi_key(struct mwifiex_private *priv,
 824                                struct mwifiex_ds_encrypt_key *encrypt_key)
 825 {
 826
 827         return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
 828                                      HostCmd_ACT_GEN_SET, KEY_INFO_ENABLED,
 829                                      encrypt_key);
 830 }
 831
 832 /*
 833  * IOCTL request handler to set WEP network key.
 834  *
 835  * This function prepares the correct firmware command and
 836  * issues it, after validation checks.
 837  */
 838 static int mwifiex_sec_ioctl_set_wep_key(struct mwifiex_private *priv,
 839                               struct mwifiex_ds_encrypt_key *encrypt_key)
 840 {
 841         int ret;
 842         struct mwifiex_wep_key *wep_key;
 843         int index;
 844
 845         if (priv->wep_key_curr_index >= NUM_WEP_KEYS)
 846                 priv->wep_key_curr_index = 0;
 847         wep_key = &priv->wep_key[priv->wep_key_curr_index];
 848         index = encrypt_key->key_index;
 849         if (encrypt_key->key_disable) {
 850                 priv->sec_info.wep_enabled = 0;
 851         } else if (!encrypt_key->key_len) {
 852                 /* Copy the required key as the current key */
 853                 wep_key = &priv->wep_key[index];
 854                 if (!wep_key->key_length) {
 855                         dev_err(priv->adapter->dev,
 856                                 "key not set, so cannot enable it\n");
 857                         return -1;
 858                 }
 859                 priv->wep_key_curr_index = (u16) index;
 860                 priv->sec_info.wep_enabled = 1;
 861         } else {
 862                 wep_key = &priv->wep_key[index];
 863                 memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
 864                 /* Copy the key in the driver */
 865                 memcpy(wep_key->key_material,
 866                        encrypt_key->key_material,
 867                        encrypt_key->key_len);
 868                 wep_key->key_index = index;
 869                 wep_key->key_length = encrypt_key->key_len;
 870                 priv->sec_info.wep_enabled = 1;
 871         }
 872         if (wep_key->key_length) {
 873                 /* Send request to firmware */
 874                 ret = mwifiex_send_cmd_async(priv,
 875                                              HostCmd_CMD_802_11_KEY_MATERIAL,
 876                                              HostCmd_ACT_GEN_SET, 0, NULL);
 877                 if (ret)
 878                         return ret;
 879         }
 880         if (priv->sec_info.wep_enabled)
 881                 priv->curr_pkt_filter |= HostCmd_ACT_MAC_WEP_ENABLE;
 882         else
 883                 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_WEP_ENABLE;
 884
 885         ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_MAC_CONTROL,
 886                                     HostCmd_ACT_GEN_SET, 0,
 887                                     &priv->curr_pkt_filter);
 888
 889         return ret;
 890 }
 891
 892 /*
 893  * IOCTL request handler to set WPA key.
 894  *
 895  * This function prepares the correct firmware command and
 896  * issues it, after validation checks.
 897  *
 898  * Current driver only supports key length of up to 32 bytes.
 899  *
 900  * This function can also be used to disable a currently set key.
 901  */
 902 static int mwifiex_sec_ioctl_set_wpa_key(struct mwifiex_private *priv,
 903                               struct mwifiex_ds_encrypt_key *encrypt_key)
 904 {
 905         int ret;
 906         u8 remove_key = false;
 907         struct host_cmd_ds_802_11_key_material *ibss_key;
 908
 909         /* Current driver only supports key length of up to 32 bytes */
 910         if (encrypt_key->key_len > WLAN_MAX_KEY_LEN) {
 911                 dev_err(priv->adapter->dev, "key length too long\n");
 912                 return -1;
 913         }
 914
 915         if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
 916                 /*
 917                  * IBSS/WPA-None uses only one key (Group) for both receiving
 918                  * and sending unicast and multicast packets.
 919                  */
 920                 /* Send the key as PTK to firmware */
 921                 encrypt_key->key_index = MWIFIEX_KEY_INDEX_UNICAST;
 922                 ret = mwifiex_send_cmd_async(priv,
 923                                              HostCmd_CMD_802_11_KEY_MATERIAL,
 924                                              HostCmd_ACT_GEN_SET,
 925                                              KEY_INFO_ENABLED, encrypt_key);
 926                 if (ret)
 927                         return ret;
 928
 929                 ibss_key = &priv->aes_key;
 930                 memset(ibss_key, 0,
 931                        sizeof(struct host_cmd_ds_802_11_key_material));
 932                 /* Copy the key in the driver */
 933                 memcpy(ibss_key->key_param_set.key, encrypt_key->key_material,
 934                        encrypt_key->key_len);
 935                 memcpy(&ibss_key->key_param_set.key_len, &encrypt_key->key_len,
 936                        sizeof(ibss_key->key_param_set.key_len));
 937                 ibss_key->key_param_set.key_type_id
 938                         = cpu_to_le16(KEY_TYPE_ID_TKIP);
 939                 ibss_key->key_param_set.key_info = cpu_to_le16(KEY_ENABLED);
 940
 941                 /* Send the key as GTK to firmware */
 942                 encrypt_key->key_index = ~MWIFIEX_KEY_INDEX_UNICAST;
 943         }
 944
 945         if (!encrypt_key->key_index)
 946                 encrypt_key->key_index = MWIFIEX_KEY_INDEX_UNICAST;
 947
 948         if (remove_key)
 949                 ret = mwifiex_send_cmd_sync(priv,
 950                                             HostCmd_CMD_802_11_KEY_MATERIAL,
 951                                             HostCmd_ACT_GEN_SET,
 952                                             !KEY_INFO_ENABLED, encrypt_key);
 953         else
 954                 ret = mwifiex_send_cmd_sync(priv,
 955                                             HostCmd_CMD_802_11_KEY_MATERIAL,
 956                                             HostCmd_ACT_GEN_SET,
 957                                             KEY_INFO_ENABLED, encrypt_key);
 958
 959         return ret;
 960 }
 961
 962 /*
 963  * IOCTL request handler to set/get network keys.
 964  *
 965  * This is a generic key handling function which supports WEP, WPA
 966  * and WAPI.
 967  */
 968 static int
 969 mwifiex_sec_ioctl_encrypt_key(struct mwifiex_private *priv,
 970                               struct mwifiex_ds_encrypt_key *encrypt_key)
 971 {
 972         int status;
 973
 974         if (encrypt_key->is_wapi_key)
 975                 status = mwifiex_sec_ioctl_set_wapi_key(priv, encrypt_key);
 976         else if (encrypt_key->key_len > WLAN_KEY_LEN_WEP104)
 977                 status = mwifiex_sec_ioctl_set_wpa_key(priv, encrypt_key);
 978         else
 979                 status = mwifiex_sec_ioctl_set_wep_key(priv, encrypt_key);
 980         return status;
 981 }
 982
 983 /*
 984  * This function returns the driver version.
 985  */
 986 int
 987 mwifiex_drv_get_driver_version(struct mwifiex_adapter *adapter, char *version,
 988                                int max_len)
 989 {
 990         union {
 991                 u32 l;
 992                 u8 c[4];
 993         } ver;
 994         char fw_ver[32];
 995
 996         ver.l = adapter->fw_release_number;
 997         sprintf(fw_ver, "%u.%u.%u.p%u", ver.c[2], ver.c[1], ver.c[0], ver.c[3]);
 998
 999         snprintf(version, max_len, driver_version, fw_ver);
1000
1001         dev_dbg(adapter->dev, "info: MWIFIEX VERSION: %s\n", version);
1002
1003         return 0;
1004 }
1005
1006 /*
1007  * Sends IOCTL request to set encoding parameters.
1008  *
1009  * This function allocates the IOCTL request buffer, fills it
1010  * with requisite parameters and calls the IOCTL handler.
1011  */
1012 int mwifiex_set_encode(struct mwifiex_private *priv, struct key_params *kp,
1013                        const u8 *key, int key_len, u8 key_index,
1014                        const u8 *mac_addr, int disable)
1015 {
1016         struct mwifiex_ds_encrypt_key encrypt_key;
1017
1018         memset(&encrypt_key, 0, sizeof(struct mwifiex_ds_encrypt_key));
1019         encrypt_key.key_len = key_len;
1020
1021         if (kp && kp->cipher == WLAN_CIPHER_SUITE_AES_CMAC)
1022                 encrypt_key.is_igtk_key = true;
1023
1024         if (!disable) {
1025                 encrypt_key.key_index = key_index;
1026                 if (key_len)
1027                         memcpy(encrypt_key.key_material, key, key_len);
1028                 if (mac_addr)
1029                         memcpy(encrypt_key.mac_addr, mac_addr, ETH_ALEN);
1030                 if (kp && kp->seq && kp->seq_len)
1031                         memcpy(encrypt_key.pn, kp->seq, kp->seq_len);
1032         } else {
1033                 encrypt_key.key_disable = true;
1034                 if (mac_addr)
1035                         memcpy(encrypt_key.mac_addr, mac_addr, ETH_ALEN);
1036         }
1037
1038         return mwifiex_sec_ioctl_encrypt_key(priv, &encrypt_key);
1039 }
1040
1041 /*
1042  * Sends IOCTL request to get extended version.
1043  *
1044  * This function allocates the IOCTL request buffer, fills it
1045  * with requisite parameters and calls the IOCTL handler.
1046  */
1047 int
1048 mwifiex_get_ver_ext(struct mwifiex_private *priv)
1049 {
1050         struct mwifiex_ver_ext ver_ext;
1051
1052         memset(&ver_ext, 0, sizeof(struct host_cmd_ds_version_ext));
1053         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_VERSION_EXT,
1054                                   HostCmd_ACT_GEN_GET, 0, &ver_ext))
1055                 return -1;
1056
1057         return 0;
1058 }
1059
1060 int
1061 mwifiex_remain_on_chan_cfg(struct mwifiex_private *priv, u16 action,
1062                            struct ieee80211_channel *chan,
1063                            unsigned int duration)
1064 {
1065         struct host_cmd_ds_remain_on_chan roc_cfg;
1066         u8 sc;
1067
1068         memset(&roc_cfg, 0, sizeof(roc_cfg));
1069         roc_cfg.action = cpu_to_le16(action);
1070         if (action == HostCmd_ACT_GEN_SET) {
1071                 roc_cfg.band_cfg = chan->band;
1072                 sc = mwifiex_chan_type_to_sec_chan_offset(NL80211_CHAN_NO_HT);
1073                 roc_cfg.band_cfg |= (sc << 2);
1074
1075                 roc_cfg.channel =
1076                         ieee80211_frequency_to_channel(chan->center_freq);
1077                 roc_cfg.duration = cpu_to_le32(duration);
1078         }
1079         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_REMAIN_ON_CHAN,
1080                                   action, 0, &roc_cfg)) {
1081                 dev_err(priv->adapter->dev, "failed to remain on channel\n");
1082                 return -1;
1083         }
1084
1085         return roc_cfg.status;
1086 }
1087
1088 int
1089 mwifiex_set_bss_role(struct mwifiex_private *priv, u8 bss_role)
1090 {
1091         if (GET_BSS_ROLE(priv) == bss_role) {
1092                 dev_dbg(priv->adapter->dev,
1093                         "info: already in the desired role.\n");
1094                 return 0;
1095         }
1096
1097         mwifiex_free_priv(priv);
1098         mwifiex_init_priv(priv);
1099
1100         priv->bss_role = bss_role;
1101         switch (bss_role) {
1102         case MWIFIEX_BSS_ROLE_UAP:
1103                 priv->bss_mode = NL80211_IFTYPE_AP;
1104                 break;
1105         case MWIFIEX_BSS_ROLE_STA:
1106         case MWIFIEX_BSS_ROLE_ANY:
1107         default:
1108                 priv->bss_mode = NL80211_IFTYPE_STATION;
1109                 break;
1110         }
1111
1112         mwifiex_send_cmd_sync(priv, HostCmd_CMD_SET_BSS_MODE,
1113                               HostCmd_ACT_GEN_SET, 0, NULL);
1114
1115         return mwifiex_sta_init_cmd(priv, false);
1116 }
1117
1118 /*
1119  * Sends IOCTL request to get statistics information.
1120  *
1121  * This function allocates the IOCTL request buffer, fills it
1122  * with requisite parameters and calls the IOCTL handler.
1123  */
1124 int
1125 mwifiex_get_stats_info(struct mwifiex_private *priv,
1126                        struct mwifiex_ds_get_stats *log)
1127 {
1128         return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_GET_LOG,
1129                                      HostCmd_ACT_GEN_GET, 0, log);
1130 }
1131
1132 /*
1133  * IOCTL request handler to read/write register.
1134  *
1135  * This function prepares the correct firmware command and
1136  * issues it.
1137  *
1138  * Access to the following registers are supported -
1139  *      - MAC
1140  *      - BBP
1141  *      - RF
1142  *      - PMIC
1143  *      - CAU
1144  */
1145 static int mwifiex_reg_mem_ioctl_reg_rw(struct mwifiex_private *priv,
1146                                         struct mwifiex_ds_reg_rw *reg_rw,
1147                                         u16 action)
1148 {
1149         u16 cmd_no;
1150
1151         switch (le32_to_cpu(reg_rw->type)) {
1152         case MWIFIEX_REG_MAC:
1153                 cmd_no = HostCmd_CMD_MAC_REG_ACCESS;
1154                 break;
1155         case MWIFIEX_REG_BBP:
1156                 cmd_no = HostCmd_CMD_BBP_REG_ACCESS;
1157                 break;
1158         case MWIFIEX_REG_RF:
1159                 cmd_no = HostCmd_CMD_RF_REG_ACCESS;
1160                 break;
1161         case MWIFIEX_REG_PMIC:
1162                 cmd_no = HostCmd_CMD_PMIC_REG_ACCESS;
1163                 break;
1164         case MWIFIEX_REG_CAU:
1165                 cmd_no = HostCmd_CMD_CAU_REG_ACCESS;
1166                 break;
1167         default:
1168                 return -1;
1169         }
1170
1171         return mwifiex_send_cmd_sync(priv, cmd_no, action, 0, reg_rw);
1172
1173 }
1174
1175 /*
1176  * Sends IOCTL request to write to a register.
1177  *
1178  * This function allocates the IOCTL request buffer, fills it
1179  * with requisite parameters and calls the IOCTL handler.
1180  */
1181 int
1182 mwifiex_reg_write(struct mwifiex_private *priv, u32 reg_type,
1183                   u32 reg_offset, u32 reg_value)
1184 {
1185         struct mwifiex_ds_reg_rw reg_rw;
1186
1187         reg_rw.type = cpu_to_le32(reg_type);
1188         reg_rw.offset = cpu_to_le32(reg_offset);
1189         reg_rw.value = cpu_to_le32(reg_value);
1190
1191         return mwifiex_reg_mem_ioctl_reg_rw(priv, &reg_rw, HostCmd_ACT_GEN_SET);
1192 }
1193
1194 /*
1195  * Sends IOCTL request to read from a register.
1196  *
1197  * This function allocates the IOCTL request buffer, fills it
1198  * with requisite parameters and calls the IOCTL handler.
1199  */
1200 int
1201 mwifiex_reg_read(struct mwifiex_private *priv, u32 reg_type,
1202                  u32 reg_offset, u32 *value)
1203 {
1204         int ret;
1205         struct mwifiex_ds_reg_rw reg_rw;
1206
1207         reg_rw.type = cpu_to_le32(reg_type);
1208         reg_rw.offset = cpu_to_le32(reg_offset);
1209         ret = mwifiex_reg_mem_ioctl_reg_rw(priv, &reg_rw, HostCmd_ACT_GEN_GET);
1210
1211         if (ret)
1212                 goto done;
1213
1214         *value = le32_to_cpu(reg_rw.value);
1215
1216 done:
1217         return ret;
1218 }
1219
1220 /*
1221  * Sends IOCTL request to read from EEPROM.
1222  *
1223  * This function allocates the IOCTL request buffer, fills it
1224  * with requisite parameters and calls the IOCTL handler.
1225  */
1226 int
1227 mwifiex_eeprom_read(struct mwifiex_private *priv, u16 offset, u16 bytes,
1228                     u8 *value)
1229 {
1230         int ret;
1231         struct mwifiex_ds_read_eeprom rd_eeprom;
1232
1233         rd_eeprom.offset = cpu_to_le16((u16) offset);
1234         rd_eeprom.byte_count = cpu_to_le16((u16) bytes);
1235
1236         /* Send request to firmware */
1237         ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_EEPROM_ACCESS,
1238                                     HostCmd_ACT_GEN_GET, 0, &rd_eeprom);
1239
1240         if (!ret)
1241                 memcpy(value, rd_eeprom.value, MAX_EEPROM_DATA);
1242         return ret;
1243 }
1244
1245 /*
1246  * This function sets a generic IE. In addition to generic IE, it can
1247  * also handle WPA, WPA2 and WAPI IEs.
1248  */
1249 static int
1250 mwifiex_set_gen_ie_helper(struct mwifiex_private *priv, u8 *ie_data_ptr,
1251                           u16 ie_len)
1252 {
1253         int ret = 0;
1254         struct ieee_types_vendor_header *pvendor_ie;
1255         const u8 wpa_oui[] = { 0x00, 0x50, 0xf2, 0x01 };
1256         const u8 wps_oui[] = { 0x00, 0x50, 0xf2, 0x04 };
1257
1258         /* If the passed length is zero, reset the buffer */
1259         if (!ie_len) {
1260                 priv->gen_ie_buf_len = 0;
1261                 priv->wps.session_enable = false;
1262
1263                 return 0;
1264         } else if (!ie_data_ptr) {
1265                 return -1;
1266         }
1267         pvendor_ie = (struct ieee_types_vendor_header *) ie_data_ptr;
1268         /* Test to see if it is a WPA IE, if not, then it is a gen IE */
1269         if (((pvendor_ie->element_id == WLAN_EID_VENDOR_SPECIFIC) &&
1270              (!memcmp(pvendor_ie->oui, wpa_oui, sizeof(wpa_oui)))) ||
1271             (pvendor_ie->element_id == WLAN_EID_RSN)) {
1272
1273                 /* IE is a WPA/WPA2 IE so call set_wpa function */
1274                 ret = mwifiex_set_wpa_ie_helper(priv, ie_data_ptr, ie_len);
1275                 priv->wps.session_enable = false;
1276
1277                 return ret;
1278         } else if (pvendor_ie->element_id == WLAN_EID_BSS_AC_ACCESS_DELAY) {
1279                 /* IE is a WAPI IE so call set_wapi function */
1280                 ret = mwifiex_set_wapi_ie(priv, ie_data_ptr, ie_len);
1281
1282                 return ret;
1283         }
1284         /*
1285          * Verify that the passed length is not larger than the
1286          * available space remaining in the buffer
1287          */
1288         if (ie_len < (sizeof(priv->gen_ie_buf) - priv->gen_ie_buf_len)) {
1289
1290                 /* Test to see if it is a WPS IE, if so, enable
1291                  * wps session flag
1292                  */
1293                 pvendor_ie = (struct ieee_types_vendor_header *) ie_data_ptr;
1294                 if ((pvendor_ie->element_id == WLAN_EID_VENDOR_SPECIFIC) &&
1295                     (!memcmp(pvendor_ie->oui, wps_oui, sizeof(wps_oui)))) {
1296                         priv->wps.session_enable = true;
1297                         dev_dbg(priv->adapter->dev,
1298                                 "info: WPS Session Enabled.\n");
1299                         ret = mwifiex_set_wps_ie(priv, ie_data_ptr, ie_len);
1300                 }
1301
1302                 /* Append the passed data to the end of the
1303                    genIeBuffer */
1304                 memcpy(priv->gen_ie_buf + priv->gen_ie_buf_len, ie_data_ptr,
1305                        ie_len);
1306                 /* Increment the stored buffer length by the
1307                    size passed */
1308                 priv->gen_ie_buf_len += ie_len;
1309         } else {
1310                 /* Passed data does not fit in the remaining
1311                    buffer space */
1312                 ret = -1;
1313         }
1314
1315         /* Return 0, or -1 for error case */
1316         return ret;
1317 }
1318
1319 /*
1320  * IOCTL request handler to set/get generic IE.
1321  *
1322  * In addition to various generic IEs, this function can also be
1323  * used to set the ARP filter.
1324  */
1325 static int mwifiex_misc_ioctl_gen_ie(struct mwifiex_private *priv,
1326                                      struct mwifiex_ds_misc_gen_ie *gen_ie,
1327                                      u16 action)
1328 {
1329         struct mwifiex_adapter *adapter = priv->adapter;
1330
1331         switch (gen_ie->type) {
1332         case MWIFIEX_IE_TYPE_GEN_IE:
1333                 if (action == HostCmd_ACT_GEN_GET) {
1334                         gen_ie->len = priv->wpa_ie_len;
1335                         memcpy(gen_ie->ie_data, priv->wpa_ie, gen_ie->len);
1336                 } else {
1337                         mwifiex_set_gen_ie_helper(priv, gen_ie->ie_data,
1338                                                   (u16) gen_ie->len);
1339                 }
1340                 break;
1341         case MWIFIEX_IE_TYPE_ARP_FILTER:
1342                 memset(adapter->arp_filter, 0, sizeof(adapter->arp_filter));
1343                 if (gen_ie->len > ARP_FILTER_MAX_BUF_SIZE) {
1344                         adapter->arp_filter_size = 0;
1345                         dev_err(adapter->dev, "invalid ARP filter size\n");
1346                         return -1;
1347                 } else {
1348                         memcpy(adapter->arp_filter, gen_ie->ie_data,
1349                                gen_ie->len);
1350                         adapter->arp_filter_size = gen_ie->len;
1351                 }
1352                 break;
1353         default:
1354                 dev_err(adapter->dev, "invalid IE type\n");
1355                 return -1;
1356         }
1357         return 0;
1358 }
1359
1360 /*
1361  * Sends IOCTL request to set a generic IE.
1362  *
1363  * This function allocates the IOCTL request buffer, fills it
1364  * with requisite parameters and calls the IOCTL handler.
1365  */
1366 int
1367 mwifiex_set_gen_ie(struct mwifiex_private *priv, u8 *ie, int ie_len)
1368 {
1369         struct mwifiex_ds_misc_gen_ie gen_ie;
1370
1371         if (ie_len > IEEE_MAX_IE_SIZE)
1372                 return -EFAULT;
1373
1374         gen_ie.type = MWIFIEX_IE_TYPE_GEN_IE;
1375         gen_ie.len = ie_len;
1376         memcpy(gen_ie.ie_data, ie, ie_len);
1377         if (mwifiex_misc_ioctl_gen_ie(priv, &gen_ie, HostCmd_ACT_GEN_SET))
1378                 return -EFAULT;
1379
1380         return 0;
1381 }