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 {
  59         int status;
  60         struct cmd_ctrl_node *cmd_queued;
  61
  62         if (!adapter->cmd_queued)
  63                 return 0;
  64
  65         cmd_queued = adapter->cmd_queued;
  66         adapter->cmd_queued = NULL;
  67
  68         dev_dbg(adapter->dev, "cmd pending\n");
  69         atomic_inc(&adapter->cmd_pending);
  70
  71         /* Wait for completion */
  72         status = wait_event_interruptible(adapter->cmd_wait_q.wait,
  73                                           *(cmd_queued->condition));
  74         if (status) {
  75                 dev_err(adapter->dev, "cmd_wait_q terminated: %d\n", status);
  76                 return status;
  77         }
  78
  79         status = adapter->cmd_wait_q.status;
  80         adapter->cmd_wait_q.status = 0;
  81
  82         return status;
  83 }
  84
  85 /*
  86  * This function prepares the correct firmware command and
  87  * issues it to set the multicast list.
  88  *
  89  * This function can be used to enable promiscuous mode, or enable all
  90  * multicast packets, or to enable selective multicast.
  91  */
  92 int mwifiex_request_set_multicast_list(struct mwifiex_private *priv,
  93                                 struct mwifiex_multicast_list *mcast_list)
  94 {
  95         int ret = 0;
  96         u16 old_pkt_filter;
  97
  98         old_pkt_filter = priv->curr_pkt_filter;
  99
 100         if (mcast_list->mode == MWIFIEX_PROMISC_MODE) {
 101                 dev_dbg(priv->adapter->dev, "info: Enable Promiscuous mode\n");
 102                 priv->curr_pkt_filter |= HostCmd_ACT_MAC_PROMISCUOUS_ENABLE;
 103                 priv->curr_pkt_filter &=
 104                         ~HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE;
 105         } else {
 106                 /* Multicast */
 107                 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_PROMISCUOUS_ENABLE;
 108                 if (mcast_list->mode == MWIFIEX_MULTICAST_MODE) {
 109                         dev_dbg(priv->adapter->dev,
 110                                 "info: Enabling All Multicast!\n");
 111                         priv->curr_pkt_filter |=
 112                                 HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE;
 113                 } else {
 114                         priv->curr_pkt_filter &=
 115                                 ~HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE;
 116                         if (mcast_list->num_multicast_addr) {
 117                                 dev_dbg(priv->adapter->dev,
 118                                         "info: Set multicast list=%d\n",
 119                                        mcast_list->num_multicast_addr);
 120                                 /* Set multicast addresses to firmware */
 121                                 if (old_pkt_filter == priv->curr_pkt_filter) {
 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                                 } else {
 128                                         /* Send request to firmware */
 129                                         ret = mwifiex_send_cmd_async(priv,
 130                                                 HostCmd_CMD_MAC_MULTICAST_ADR,
 131                                                 HostCmd_ACT_GEN_SET, 0,
 132                                                 mcast_list);
 133                                 }
 134                         }
 135                 }
 136         }
 137         dev_dbg(priv->adapter->dev,
 138                 "info: old_pkt_filter=%#x, curr_pkt_filter=%#x\n",
 139                old_pkt_filter, priv->curr_pkt_filter);
 140         if (old_pkt_filter != priv->curr_pkt_filter) {
 141                 ret = mwifiex_send_cmd_async(priv, HostCmd_CMD_MAC_CONTROL,
 142                                              HostCmd_ACT_GEN_SET,
 143                                              0, &priv->curr_pkt_filter);
 144         }
 145
 146         return ret;
 147 }
 148
 149 /*
 150  * This function fills bss descriptor structure using provided
 151  * information.
 152  */
 153 int mwifiex_fill_new_bss_desc(struct mwifiex_private *priv,
 154                               struct cfg80211_bss *bss,
 155                               struct mwifiex_bssdescriptor *bss_desc)
 156 {
 157         int ret;
 158         u8 *beacon_ie;
 159         size_t beacon_ie_len;
 160         struct mwifiex_bss_priv *bss_priv = (void *)bss->priv;
 161         const struct cfg80211_bss_ies *ies;
 162
 163         rcu_read_lock();
 164         ies = rcu_dereference(bss->ies);
 165         if (WARN_ON(!ies)) {
 166                 /* should never happen */
 167                 rcu_read_unlock();
 168                 return -EINVAL;
 169         }
 170         beacon_ie = kmemdup(ies->data, ies->len, GFP_ATOMIC);
 171         beacon_ie_len = ies->len;
 172         rcu_read_unlock();
 173
 174         if (!beacon_ie) {
 175                 dev_err(priv->adapter->dev, " failed to alloc beacon_ie\n");
 176                 return -ENOMEM;
 177         }
 178
 179         memcpy(bss_desc->mac_address, bss->bssid, ETH_ALEN);
 180         bss_desc->rssi = bss->signal;
 181         bss_desc->beacon_buf = beacon_ie;
 182         bss_desc->beacon_buf_size = beacon_ie_len;
 183         bss_desc->beacon_period = bss->beacon_interval;
 184         bss_desc->cap_info_bitmap = bss->capability;
 185         bss_desc->bss_band = bss_priv->band;
 186         bss_desc->fw_tsf = bss_priv->fw_tsf;
 187         bss_desc->timestamp = bss->tsf;
 188         if (bss_desc->cap_info_bitmap & WLAN_CAPABILITY_PRIVACY) {
 189                 dev_dbg(priv->adapter->dev, "info: InterpretIE: AP WEP enabled\n");
 190                 bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_8021X_WEP;
 191         } else {
 192                 bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_ACCEPT_ALL;
 193         }
 194         if (bss_desc->cap_info_bitmap & WLAN_CAPABILITY_IBSS)
 195                 bss_desc->bss_mode = NL80211_IFTYPE_ADHOC;
 196         else
 197                 bss_desc->bss_mode = NL80211_IFTYPE_STATION;
 198
 199         ret = mwifiex_update_bss_desc_with_ie(priv->adapter, bss_desc);
 200
 201         kfree(beacon_ie);
 202         return ret;
 203 }
 204
 205 static int mwifiex_process_country_ie(struct mwifiex_private *priv,
 206                                       struct cfg80211_bss *bss)
 207 {
 208         const u8 *country_ie;
 209         u8 country_ie_len;
 210         struct mwifiex_802_11d_domain_reg *domain_info =
 211                                         &priv->adapter->domain_reg;
 212
 213         rcu_read_lock();
 214         country_ie = ieee80211_bss_get_ie(bss, WLAN_EID_COUNTRY);
 215         if (!country_ie) {
 216                 rcu_read_unlock();
 217                 return 0;
 218         }
 219
 220         country_ie_len = country_ie[1];
 221         if (country_ie_len < IEEE80211_COUNTRY_IE_MIN_LEN) {
 222                 rcu_read_unlock();
 223                 return 0;
 224         }
 225
 226         domain_info->country_code[0] = country_ie[2];
 227         domain_info->country_code[1] = country_ie[3];
 228         domain_info->country_code[2] = ' ';
 229
 230         country_ie_len -= IEEE80211_COUNTRY_STRING_LEN;
 231
 232         domain_info->no_of_triplet =
 233                 country_ie_len / sizeof(struct ieee80211_country_ie_triplet);
 234
 235         memcpy((u8 *)domain_info->triplet,
 236                &country_ie[2] + IEEE80211_COUNTRY_STRING_LEN, country_ie_len);
 237
 238         rcu_read_unlock();
 239
 240         if (mwifiex_send_cmd_async(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
 241                                    HostCmd_ACT_GEN_SET, 0, NULL)) {
 242                 wiphy_err(priv->adapter->wiphy,
 243                           "11D: setting domain info in FW\n");
 244                 return -1;
 245         }
 246
 247         return 0;
 248 }
 249
 250 /*
 251  * In Ad-Hoc mode, the IBSS is created if not found in scan list.
 252  * In both Ad-Hoc and infra mode, an deauthentication is performed
 253  * first.
 254  */
 255 int mwifiex_bss_start(struct mwifiex_private *priv, struct cfg80211_bss *bss,
 256                       struct cfg80211_ssid *req_ssid)
 257 {
 258         int ret;
 259         struct mwifiex_adapter *adapter = priv->adapter;
 260         struct mwifiex_bssdescriptor *bss_desc = NULL;
 261
 262         priv->scan_block = false;
 263
 264         if (bss) {
 265                 mwifiex_process_country_ie(priv, bss);
 266
 267                 /* Allocate and fill new bss descriptor */
 268                 bss_desc = kzalloc(sizeof(struct mwifiex_bssdescriptor),
 269                                 GFP_KERNEL);
 270                 if (!bss_desc) {
 271                         dev_err(priv->adapter->dev, " failed to alloc bss_desc\n");
 272                         return -ENOMEM;
 273                 }
 274
 275                 ret = mwifiex_fill_new_bss_desc(priv, bss, bss_desc);
 276                 if (ret)
 277                         goto done;
 278         }
 279
 280         if (priv->bss_mode == NL80211_IFTYPE_STATION) {
 281                 /* Infra mode */
 282                 ret = mwifiex_deauthenticate(priv, NULL);
 283                 if (ret)
 284                         goto done;
 285
 286                 ret = mwifiex_check_network_compatibility(priv, bss_desc);
 287                 if (ret)
 288                         goto done;
 289
 290                 dev_dbg(adapter->dev, "info: SSID found in scan list ... "
 291                                       "associating...\n");
 292
 293                 mwifiex_stop_net_dev_queue(priv->netdev, adapter);
 294                 if (netif_carrier_ok(priv->netdev))
 295                         netif_carrier_off(priv->netdev);
 296
 297                 /* Clear any past association response stored for
 298                  * application retrieval */
 299                 priv->assoc_rsp_size = 0;
 300                 ret = mwifiex_associate(priv, bss_desc);
 301
 302                 /* If auth type is auto and association fails using open mode,
 303                  * try to connect using shared mode */
 304                 if (ret == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG &&
 305                     priv->sec_info.is_authtype_auto &&
 306                     priv->sec_info.wep_enabled) {
 307                         priv->sec_info.authentication_mode =
 308                                                 NL80211_AUTHTYPE_SHARED_KEY;
 309                         ret = mwifiex_associate(priv, bss_desc);
 310                 }
 311
 312                 if (bss)
 313                         cfg80211_put_bss(bss);
 314         } else {
 315                 /* Adhoc mode */
 316                 /* If the requested SSID matches current SSID, return */
 317                 if (bss_desc && bss_desc->ssid.ssid_len &&
 318                     (!mwifiex_ssid_cmp(&priv->curr_bss_params.bss_descriptor.
 319                                        ssid, &bss_desc->ssid))) {
 320                         kfree(bss_desc);
 321                         return 0;
 322                 }
 323
 324                 /* Exit Adhoc mode first */
 325                 dev_dbg(adapter->dev, "info: Sending Adhoc Stop\n");
 326                 ret = mwifiex_deauthenticate(priv, NULL);
 327                 if (ret)
 328                         goto done;
 329
 330                 priv->adhoc_is_link_sensed = false;
 331
 332                 ret = mwifiex_check_network_compatibility(priv, bss_desc);
 333
 334                 mwifiex_stop_net_dev_queue(priv->netdev, adapter);
 335                 if (netif_carrier_ok(priv->netdev))
 336                         netif_carrier_off(priv->netdev);
 337
 338                 if (!ret) {
 339                         dev_dbg(adapter->dev, "info: network found in scan"
 340                                                         " list. Joining...\n");
 341                         ret = mwifiex_adhoc_join(priv, bss_desc);
 342                         if (bss)
 343                                 cfg80211_put_bss(bss);
 344                 } else {
 345                         dev_dbg(adapter->dev, "info: Network not found in "
 346                                 "the list, creating adhoc with ssid = %s\n",
 347                                 req_ssid->ssid);
 348                         ret = mwifiex_adhoc_start(priv, req_ssid);
 349                 }
 350         }
 351
 352 done:
 353         kfree(bss_desc);
 354         return ret;
 355 }
 356
 357 /*
 358  * IOCTL request handler to set host sleep configuration.
 359  *
 360  * This function prepares the correct firmware command and
 361  * issues it.
 362  */
 363 static int mwifiex_set_hs_params(struct mwifiex_private *priv, u16 action,
 364                                  int cmd_type, struct mwifiex_ds_hs_cfg *hs_cfg)
 365
 366 {
 367         struct mwifiex_adapter *adapter = priv->adapter;
 368         int status = 0;
 369         u32 prev_cond = 0;
 370
 371         if (!hs_cfg)
 372                 return -ENOMEM;
 373
 374         switch (action) {
 375         case HostCmd_ACT_GEN_SET:
 376                 if (adapter->pps_uapsd_mode) {
 377                         dev_dbg(adapter->dev, "info: Host Sleep IOCTL"
 378                                 " is blocked in UAPSD/PPS mode\n");
 379                         status = -1;
 380                         break;
 381                 }
 382                 if (hs_cfg->is_invoke_hostcmd) {
 383                         if (hs_cfg->conditions == HOST_SLEEP_CFG_CANCEL) {
 384                                 if (!adapter->is_hs_configured)
 385                                         /* Already cancelled */
 386                                         break;
 387                                 /* Save previous condition */
 388                                 prev_cond = le32_to_cpu(adapter->hs_cfg
 389                                                         .conditions);
 390                                 adapter->hs_cfg.conditions =
 391                                                 cpu_to_le32(hs_cfg->conditions);
 392                         } else if (hs_cfg->conditions) {
 393                                 adapter->hs_cfg.conditions =
 394                                                 cpu_to_le32(hs_cfg->conditions);
 395                                 adapter->hs_cfg.gpio = (u8)hs_cfg->gpio;
 396                                 if (hs_cfg->gap)
 397                                         adapter->hs_cfg.gap = (u8)hs_cfg->gap;
 398                         } else if (adapter->hs_cfg.conditions
 399                                    == cpu_to_le32(HOST_SLEEP_CFG_CANCEL)) {
 400                                 /* Return failure if no parameters for HS
 401                                    enable */
 402                                 status = -1;
 403                                 break;
 404                         }
 405                         if (cmd_type == MWIFIEX_SYNC_CMD)
 406                                 status = mwifiex_send_cmd_sync(priv,
 407                                                 HostCmd_CMD_802_11_HS_CFG_ENH,
 408                                                 HostCmd_ACT_GEN_SET, 0,
 409                                                 &adapter->hs_cfg);
 410                         else
 411                                 status = mwifiex_send_cmd_async(priv,
 412                                                 HostCmd_CMD_802_11_HS_CFG_ENH,
 413                                                 HostCmd_ACT_GEN_SET, 0,
 414                                                 &adapter->hs_cfg);
 415                         if (hs_cfg->conditions == HOST_SLEEP_CFG_CANCEL)
 416                                 /* Restore previous condition */
 417                                 adapter->hs_cfg.conditions =
 418                                                 cpu_to_le32(prev_cond);
 419                 } else {
 420                         adapter->hs_cfg.conditions =
 421                                                 cpu_to_le32(hs_cfg->conditions);
 422                         adapter->hs_cfg.gpio = (u8)hs_cfg->gpio;
 423                         adapter->hs_cfg.gap = (u8)hs_cfg->gap;
 424                 }
 425                 break;
 426         case HostCmd_ACT_GEN_GET:
 427                 hs_cfg->conditions = le32_to_cpu(adapter->hs_cfg.conditions);
 428                 hs_cfg->gpio = adapter->hs_cfg.gpio;
 429                 hs_cfg->gap = adapter->hs_cfg.gap;
 430                 break;
 431         default:
 432                 status = -1;
 433                 break;
 434         }
 435
 436         return status;
 437 }
 438
 439 /*
 440  * Sends IOCTL request to cancel the existing Host Sleep configuration.
 441  *
 442  * This function allocates the IOCTL request buffer, fills it
 443  * with requisite parameters and calls the IOCTL handler.
 444  */
 445 int mwifiex_cancel_hs(struct mwifiex_private *priv, int cmd_type)
 446 {
 447         struct mwifiex_ds_hs_cfg hscfg;
 448
 449         hscfg.conditions = HOST_SLEEP_CFG_CANCEL;
 450         hscfg.is_invoke_hostcmd = true;
 451
 452         return mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_SET,
 453                                     cmd_type, &hscfg);
 454 }
 455 EXPORT_SYMBOL_GPL(mwifiex_cancel_hs);
 456
 457 /*
 458  * Sends IOCTL request to cancel the existing Host Sleep configuration.
 459  *
 460  * This function allocates the IOCTL request buffer, fills it
 461  * with requisite parameters and calls the IOCTL handler.
 462  */
 463 int mwifiex_enable_hs(struct mwifiex_adapter *adapter)
 464 {
 465         struct mwifiex_ds_hs_cfg hscfg;
 466         struct mwifiex_private *priv;
 467         int i;
 468
 469         if (disconnect_on_suspend) {
 470                 for (i = 0; i < adapter->priv_num; i++) {
 471                         priv = adapter->priv[i];
 472                         if (priv)
 473                                 mwifiex_deauthenticate(priv, NULL);
 474                 }
 475         }
 476
 477         if (adapter->hs_activated) {
 478                 dev_dbg(adapter->dev, "cmd: HS Already activated\n");
 479                 return true;
 480         }
 481
 482         adapter->hs_activate_wait_q_woken = false;
 483
 484         memset(&hscfg, 0, sizeof(struct mwifiex_ds_hs_cfg));
 485         hscfg.is_invoke_hostcmd = true;
 486
 487         if (mwifiex_set_hs_params(mwifiex_get_priv(adapter,
 488                                                    MWIFIEX_BSS_ROLE_STA),
 489                                   HostCmd_ACT_GEN_SET, MWIFIEX_SYNC_CMD,
 490                                   &hscfg)) {
 491                 dev_err(adapter->dev, "IOCTL request HS enable failed\n");
 492                 return false;
 493         }
 494
 495         if (wait_event_interruptible(adapter->hs_activate_wait_q,
 496                                      adapter->hs_activate_wait_q_woken)) {
 497                 dev_err(adapter->dev, "hs_activate_wait_q terminated\n");
 498                 return false;
 499         }
 500
 501         return true;
 502 }
 503 EXPORT_SYMBOL_GPL(mwifiex_enable_hs);
 504
 505 /*
 506  * IOCTL request handler to get BSS information.
 507  *
 508  * This function collates the information from different driver structures
 509  * to send to the user.
 510  */
 511 int mwifiex_get_bss_info(struct mwifiex_private *priv,
 512                          struct mwifiex_bss_info *info)
 513 {
 514         struct mwifiex_adapter *adapter = priv->adapter;
 515         struct mwifiex_bssdescriptor *bss_desc;
 516
 517         if (!info)
 518                 return -1;
 519
 520         bss_desc = &priv->curr_bss_params.bss_descriptor;
 521
 522         info->bss_mode = priv->bss_mode;
 523
 524         memcpy(&info->ssid, &bss_desc->ssid, sizeof(struct cfg80211_ssid));
 525
 526         memcpy(&info->bssid, &bss_desc->mac_address, ETH_ALEN);
 527
 528         info->bss_chan = bss_desc->channel;
 529
 530         memcpy(info->country_code, adapter->country_code,
 531                IEEE80211_COUNTRY_STRING_LEN);
 532
 533         info->media_connected = priv->media_connected;
 534
 535         info->max_power_level = priv->max_tx_power_level;
 536         info->min_power_level = priv->min_tx_power_level;
 537
 538         info->adhoc_state = priv->adhoc_state;
 539
 540         info->bcn_nf_last = priv->bcn_nf_last;
 541
 542         if (priv->sec_info.wep_enabled)
 543                 info->wep_status = true;
 544         else
 545                 info->wep_status = false;
 546
 547         info->is_hs_configured = adapter->is_hs_configured;
 548         info->is_deep_sleep = adapter->is_deep_sleep;
 549
 550         return 0;
 551 }
 552
 553 /*
 554  * The function disables auto deep sleep mode.
 555  */
 556 int mwifiex_disable_auto_ds(struct mwifiex_private *priv)
 557 {
 558         struct mwifiex_ds_auto_ds auto_ds;
 559
 560         auto_ds.auto_ds = DEEP_SLEEP_OFF;
 561
 562         return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_PS_MODE_ENH,
 563                                      DIS_AUTO_PS, BITMAP_AUTO_DS, &auto_ds);
 564 }
 565 EXPORT_SYMBOL_GPL(mwifiex_disable_auto_ds);
 566
 567 /*
 568  * Sends IOCTL request to get the data rate.
 569  *
 570  * This function allocates the IOCTL request buffer, fills it
 571  * with requisite parameters and calls the IOCTL handler.
 572  */
 573 int mwifiex_drv_get_data_rate(struct mwifiex_private *priv, u32 *rate)
 574 {
 575         int ret;
 576
 577         ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_TX_RATE_QUERY,
 578                                     HostCmd_ACT_GEN_GET, 0, NULL);
 579
 580         if (!ret) {
 581                 if (priv->is_data_rate_auto)
 582                         *rate = mwifiex_index_to_data_rate(priv, priv->tx_rate,
 583                                                            priv->tx_htinfo);
 584                 else
 585                         *rate = priv->data_rate;
 586         }
 587
 588         return ret;
 589 }
 590
 591 /*
 592  * IOCTL request handler to set tx power configuration.
 593  *
 594  * This function prepares the correct firmware command and
 595  * issues it.
 596  *
 597  * For non-auto power mode, all the following power groups are set -
 598  *      - Modulation class HR/DSSS
 599  *      - Modulation class OFDM
 600  *      - Modulation class HTBW20
 601  *      - Modulation class HTBW40
 602  */
 603 int mwifiex_set_tx_power(struct mwifiex_private *priv,
 604                          struct mwifiex_power_cfg *power_cfg)
 605 {
 606         int ret;
 607         struct host_cmd_ds_txpwr_cfg *txp_cfg;
 608         struct mwifiex_types_power_group *pg_tlv;
 609         struct mwifiex_power_group *pg;
 610         u8 *buf;
 611         u16 dbm = 0;
 612
 613         if (!power_cfg->is_power_auto) {
 614                 dbm = (u16) power_cfg->power_level;
 615                 if ((dbm < priv->min_tx_power_level) ||
 616                     (dbm > priv->max_tx_power_level)) {
 617                         dev_err(priv->adapter->dev, "txpower value %d dBm"
 618                                 " is out of range (%d dBm-%d dBm)\n",
 619                                 dbm, priv->min_tx_power_level,
 620                                 priv->max_tx_power_level);
 621                         return -1;
 622                 }
 623         }
 624         buf = kzalloc(MWIFIEX_SIZE_OF_CMD_BUFFER, GFP_KERNEL);
 625         if (!buf) {
 626                 dev_err(priv->adapter->dev, "%s: failed to alloc cmd buffer\n",
 627                         __func__);
 628                 return -ENOMEM;
 629         }
 630
 631         txp_cfg = (struct host_cmd_ds_txpwr_cfg *) buf;
 632         txp_cfg->action = cpu_to_le16(HostCmd_ACT_GEN_SET);
 633         if (!power_cfg->is_power_auto) {
 634                 txp_cfg->mode = cpu_to_le32(1);
 635                 pg_tlv = (struct mwifiex_types_power_group *)
 636                          (buf + sizeof(struct host_cmd_ds_txpwr_cfg));
 637                 pg_tlv->type = TLV_TYPE_POWER_GROUP;
 638                 pg_tlv->length = 4 * sizeof(struct mwifiex_power_group);
 639                 pg = (struct mwifiex_power_group *)
 640                      (buf + sizeof(struct host_cmd_ds_txpwr_cfg)
 641                       + sizeof(struct mwifiex_types_power_group));
 642                 /* Power group for modulation class HR/DSSS */
 643                 pg->first_rate_code = 0x00;
 644                 pg->last_rate_code = 0x03;
 645                 pg->modulation_class = MOD_CLASS_HR_DSSS;
 646                 pg->power_step = 0;
 647                 pg->power_min = (s8) dbm;
 648                 pg->power_max = (s8) dbm;
 649                 pg++;
 650                 /* Power group for modulation class OFDM */
 651                 pg->first_rate_code = 0x00;
 652                 pg->last_rate_code = 0x07;
 653                 pg->modulation_class = MOD_CLASS_OFDM;
 654                 pg->power_step = 0;
 655                 pg->power_min = (s8) dbm;
 656                 pg->power_max = (s8) dbm;
 657                 pg++;
 658                 /* Power group for modulation class HTBW20 */
 659                 pg->first_rate_code = 0x00;
 660                 pg->last_rate_code = 0x20;
 661                 pg->modulation_class = MOD_CLASS_HT;
 662                 pg->power_step = 0;
 663                 pg->power_min = (s8) dbm;
 664                 pg->power_max = (s8) dbm;
 665                 pg->ht_bandwidth = HT_BW_20;
 666                 pg++;
 667                 /* Power group for modulation class HTBW40 */
 668                 pg->first_rate_code = 0x00;
 669                 pg->last_rate_code = 0x20;
 670                 pg->modulation_class = MOD_CLASS_HT;
 671                 pg->power_step = 0;
 672                 pg->power_min = (s8) dbm;
 673                 pg->power_max = (s8) dbm;
 674                 pg->ht_bandwidth = HT_BW_40;
 675         }
 676         ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_TXPWR_CFG,
 677                                     HostCmd_ACT_GEN_SET, 0, buf);
 678
 679         kfree(buf);
 680         return ret;
 681 }
 682
 683 /*
 684  * IOCTL request handler to get power save mode.
 685  *
 686  * This function prepares the correct firmware command and
 687  * issues it.
 688  */
 689 int mwifiex_drv_set_power(struct mwifiex_private *priv, u32 *ps_mode)
 690 {
 691         int ret;
 692         struct mwifiex_adapter *adapter = priv->adapter;
 693         u16 sub_cmd;
 694
 695         if (*ps_mode)
 696                 adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_PSP;
 697         else
 698                 adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_CAM;
 699         sub_cmd = (*ps_mode) ? EN_AUTO_PS : DIS_AUTO_PS;
 700         ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_PS_MODE_ENH,
 701                                     sub_cmd, BITMAP_STA_PS, NULL);
 702         if ((!ret) && (sub_cmd == DIS_AUTO_PS))
 703                 ret = mwifiex_send_cmd_async(priv,
 704                                              HostCmd_CMD_802_11_PS_MODE_ENH,
 705                                              GET_PS, 0, NULL);
 706
 707         return ret;
 708 }
 709
 710 /*
 711  * IOCTL request handler to set/reset WPA IE.
 712  *
 713  * The supplied WPA IE is treated as a opaque buffer. Only the first field
 714  * is checked to determine WPA version. If buffer length is zero, the existing
 715  * WPA IE is reset.
 716  */
 717 static int mwifiex_set_wpa_ie_helper(struct mwifiex_private *priv,
 718                                      u8 *ie_data_ptr, u16 ie_len)
 719 {
 720         if (ie_len) {
 721                 if (ie_len > sizeof(priv->wpa_ie)) {
 722                         dev_err(priv->adapter->dev,
 723                                 "failed to copy WPA IE, too big\n");
 724                         return -1;
 725                 }
 726                 memcpy(priv->wpa_ie, ie_data_ptr, ie_len);
 727                 priv->wpa_ie_len = (u8) ie_len;
 728                 dev_dbg(priv->adapter->dev, "cmd: Set Wpa_ie_len=%d IE=%#x\n",
 729                         priv->wpa_ie_len, priv->wpa_ie[0]);
 730
 731                 if (priv->wpa_ie[0] == WLAN_EID_VENDOR_SPECIFIC) {
 732                         priv->sec_info.wpa_enabled = true;
 733                 } else if (priv->wpa_ie[0] == WLAN_EID_RSN) {
 734                         priv->sec_info.wpa2_enabled = true;
 735                 } else {
 736                         priv->sec_info.wpa_enabled = false;
 737                         priv->sec_info.wpa2_enabled = false;
 738                 }
 739         } else {
 740                 memset(priv->wpa_ie, 0, sizeof(priv->wpa_ie));
 741                 priv->wpa_ie_len = 0;
 742                 dev_dbg(priv->adapter->dev, "info: reset wpa_ie_len=%d IE=%#x\n",
 743                         priv->wpa_ie_len, priv->wpa_ie[0]);
 744                 priv->sec_info.wpa_enabled = false;
 745                 priv->sec_info.wpa2_enabled = false;
 746         }
 747
 748         return 0;
 749 }
 750
 751 /*
 752  * IOCTL request handler to set/reset WAPI IE.
 753  *
 754  * The supplied WAPI IE is treated as a opaque buffer. Only the first field
 755  * is checked to internally enable WAPI. If buffer length is zero, the existing
 756  * WAPI IE is reset.
 757  */
 758 static int mwifiex_set_wapi_ie(struct mwifiex_private *priv,
 759                                u8 *ie_data_ptr, u16 ie_len)
 760 {
 761         if (ie_len) {
 762                 if (ie_len > sizeof(priv->wapi_ie)) {
 763                         dev_dbg(priv->adapter->dev,
 764                                 "info: failed to copy WAPI IE, too big\n");
 765                         return -1;
 766                 }
 767                 memcpy(priv->wapi_ie, ie_data_ptr, ie_len);
 768                 priv->wapi_ie_len = ie_len;
 769                 dev_dbg(priv->adapter->dev, "cmd: Set wapi_ie_len=%d IE=%#x\n",
 770                         priv->wapi_ie_len, priv->wapi_ie[0]);
 771
 772                 if (priv->wapi_ie[0] == WLAN_EID_BSS_AC_ACCESS_DELAY)
 773                         priv->sec_info.wapi_enabled = true;
 774         } else {
 775                 memset(priv->wapi_ie, 0, sizeof(priv->wapi_ie));
 776                 priv->wapi_ie_len = ie_len;
 777                 dev_dbg(priv->adapter->dev,
 778                         "info: Reset wapi_ie_len=%d IE=%#x\n",
 779                        priv->wapi_ie_len, priv->wapi_ie[0]);
 780                 priv->sec_info.wapi_enabled = false;
 781         }
 782         return 0;
 783 }
 784
 785 /*
 786  * IOCTL request handler to set/reset WPS IE.
 787  *
 788  * The supplied WPS IE is treated as a opaque buffer. Only the first field
 789  * is checked to internally enable WPS. If buffer length is zero, the existing
 790  * WPS IE is reset.
 791  */
 792 static int mwifiex_set_wps_ie(struct mwifiex_private *priv,
 793                                u8 *ie_data_ptr, u16 ie_len)
 794 {
 795         if (ie_len) {
 796                 priv->wps_ie = kzalloc(MWIFIEX_MAX_VSIE_LEN, GFP_KERNEL);
 797                 if (!priv->wps_ie)
 798                         return -ENOMEM;
 799                 if (ie_len > sizeof(priv->wps_ie)) {
 800                         dev_dbg(priv->adapter->dev,
 801                                 "info: failed to copy WPS IE, too big\n");
 802                         kfree(priv->wps_ie);
 803                         return -1;
 804                 }
 805                 memcpy(priv->wps_ie, ie_data_ptr, ie_len);
 806                 priv->wps_ie_len = ie_len;
 807                 dev_dbg(priv->adapter->dev, "cmd: Set wps_ie_len=%d IE=%#x\n",
 808                         priv->wps_ie_len, priv->wps_ie[0]);
 809         } else {
 810                 kfree(priv->wps_ie);
 811                 priv->wps_ie_len = ie_len;
 812                 dev_dbg(priv->adapter->dev,
 813                         "info: Reset wps_ie_len=%d\n", priv->wps_ie_len);
 814         }
 815         return 0;
 816 }
 817
 818 /*
 819  * IOCTL request handler to set WAPI key.
 820  *
 821  * This function prepares the correct firmware command and
 822  * issues it.
 823  */
 824 static int mwifiex_sec_ioctl_set_wapi_key(struct mwifiex_private *priv,
 825                                struct mwifiex_ds_encrypt_key *encrypt_key)
 826 {
 827
 828         return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
 829                                      HostCmd_ACT_GEN_SET, KEY_INFO_ENABLED,
 830                                      encrypt_key);
 831 }
 832
 833 /*
 834  * IOCTL request handler to set WEP network key.
 835  *
 836  * This function prepares the correct firmware command and
 837  * issues it, after validation checks.
 838  */
 839 static int mwifiex_sec_ioctl_set_wep_key(struct mwifiex_private *priv,
 840                               struct mwifiex_ds_encrypt_key *encrypt_key)
 841 {
 842         int ret;
 843         struct mwifiex_wep_key *wep_key;
 844         int index;
 845
 846         if (priv->wep_key_curr_index >= NUM_WEP_KEYS)
 847                 priv->wep_key_curr_index = 0;
 848         wep_key = &priv->wep_key[priv->wep_key_curr_index];
 849         index = encrypt_key->key_index;
 850         if (encrypt_key->key_disable) {
 851                 priv->sec_info.wep_enabled = 0;
 852         } else if (!encrypt_key->key_len) {
 853                 /* Copy the required key as the current key */
 854                 wep_key = &priv->wep_key[index];
 855                 if (!wep_key->key_length) {
 856                         dev_err(priv->adapter->dev,
 857                                 "key not set, so cannot enable it\n");
 858                         return -1;
 859                 }
 860                 priv->wep_key_curr_index = (u16) index;
 861                 priv->sec_info.wep_enabled = 1;
 862         } else {
 863                 wep_key = &priv->wep_key[index];
 864                 memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
 865                 /* Copy the key in the driver */
 866                 memcpy(wep_key->key_material,
 867                        encrypt_key->key_material,
 868                        encrypt_key->key_len);
 869                 wep_key->key_index = index;
 870                 wep_key->key_length = encrypt_key->key_len;
 871                 priv->sec_info.wep_enabled = 1;
 872         }
 873         if (wep_key->key_length) {
 874                 /* Send request to firmware */
 875                 ret = mwifiex_send_cmd_async(priv,
 876                                              HostCmd_CMD_802_11_KEY_MATERIAL,
 877                                              HostCmd_ACT_GEN_SET, 0, NULL);
 878                 if (ret)
 879                         return ret;
 880         }
 881         if (priv->sec_info.wep_enabled)
 882                 priv->curr_pkt_filter |= HostCmd_ACT_MAC_WEP_ENABLE;
 883         else
 884                 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_WEP_ENABLE;
 885
 886         ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_MAC_CONTROL,
 887                                     HostCmd_ACT_GEN_SET, 0,
 888                                     &priv->curr_pkt_filter);
 889
 890         return ret;
 891 }
 892
 893 /*
 894  * IOCTL request handler to set WPA key.
 895  *
 896  * This function prepares the correct firmware command and
 897  * issues it, after validation checks.
 898  *
 899  * Current driver only supports key length of up to 32 bytes.
 900  *
 901  * This function can also be used to disable a currently set key.
 902  */
 903 static int mwifiex_sec_ioctl_set_wpa_key(struct mwifiex_private *priv,
 904                               struct mwifiex_ds_encrypt_key *encrypt_key)
 905 {
 906         int ret;
 907         u8 remove_key = false;
 908         struct host_cmd_ds_802_11_key_material *ibss_key;
 909
 910         /* Current driver only supports key length of up to 32 bytes */
 911         if (encrypt_key->key_len > WLAN_MAX_KEY_LEN) {
 912                 dev_err(priv->adapter->dev, "key length too long\n");
 913                 return -1;
 914         }
 915
 916         if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
 917                 /*
 918                  * IBSS/WPA-None uses only one key (Group) for both receiving
 919                  * and sending unicast and multicast packets.
 920                  */
 921                 /* Send the key as PTK to firmware */
 922                 encrypt_key->key_index = MWIFIEX_KEY_INDEX_UNICAST;
 923                 ret = mwifiex_send_cmd_async(priv,
 924                                              HostCmd_CMD_802_11_KEY_MATERIAL,
 925                                              HostCmd_ACT_GEN_SET,
 926                                              KEY_INFO_ENABLED, encrypt_key);
 927                 if (ret)
 928                         return ret;
 929
 930                 ibss_key = &priv->aes_key;
 931                 memset(ibss_key, 0,
 932                        sizeof(struct host_cmd_ds_802_11_key_material));
 933                 /* Copy the key in the driver */
 934                 memcpy(ibss_key->key_param_set.key, encrypt_key->key_material,
 935                        encrypt_key->key_len);
 936                 memcpy(&ibss_key->key_param_set.key_len, &encrypt_key->key_len,
 937                        sizeof(ibss_key->key_param_set.key_len));
 938                 ibss_key->key_param_set.key_type_id
 939                         = cpu_to_le16(KEY_TYPE_ID_TKIP);
 940                 ibss_key->key_param_set.key_info = cpu_to_le16(KEY_ENABLED);
 941
 942                 /* Send the key as GTK to firmware */
 943                 encrypt_key->key_index = ~MWIFIEX_KEY_INDEX_UNICAST;
 944         }
 945
 946         if (!encrypt_key->key_index)
 947                 encrypt_key->key_index = MWIFIEX_KEY_INDEX_UNICAST;
 948
 949         if (remove_key)
 950                 ret = mwifiex_send_cmd_sync(priv,
 951                                             HostCmd_CMD_802_11_KEY_MATERIAL,
 952                                             HostCmd_ACT_GEN_SET,
 953                                             !KEY_INFO_ENABLED, encrypt_key);
 954         else
 955                 ret = mwifiex_send_cmd_sync(priv,
 956                                             HostCmd_CMD_802_11_KEY_MATERIAL,
 957                                             HostCmd_ACT_GEN_SET,
 958                                             KEY_INFO_ENABLED, encrypt_key);
 959
 960         return ret;
 961 }
 962
 963 /*
 964  * IOCTL request handler to set/get network keys.
 965  *
 966  * This is a generic key handling function which supports WEP, WPA
 967  * and WAPI.
 968  */
 969 static int
 970 mwifiex_sec_ioctl_encrypt_key(struct mwifiex_private *priv,
 971                               struct mwifiex_ds_encrypt_key *encrypt_key)
 972 {
 973         int status;
 974
 975         if (encrypt_key->is_wapi_key)
 976                 status = mwifiex_sec_ioctl_set_wapi_key(priv, encrypt_key);
 977         else if (encrypt_key->key_len > WLAN_KEY_LEN_WEP104)
 978                 status = mwifiex_sec_ioctl_set_wpa_key(priv, encrypt_key);
 979         else
 980                 status = mwifiex_sec_ioctl_set_wep_key(priv, encrypt_key);
 981         return status;
 982 }
 983
 984 /*
 985  * This function returns the driver version.
 986  */
 987 int
 988 mwifiex_drv_get_driver_version(struct mwifiex_adapter *adapter, char *version,
 989                                int max_len)
 990 {
 991         union {
 992                 u32 l;
 993                 u8 c[4];
 994         } ver;
 995         char fw_ver[32];
 996
 997         ver.l = adapter->fw_release_number;
 998         sprintf(fw_ver, "%u.%u.%u.p%u", ver.c[2], ver.c[1], ver.c[0], ver.c[3]);
 999
1000         snprintf(version, max_len, driver_version, fw_ver);
1001
1002         dev_dbg(adapter->dev, "info: MWIFIEX VERSION: %s\n", version);
1003
1004         return 0;
1005 }
1006
1007 /*
1008  * Sends IOCTL request to set encoding parameters.
1009  *
1010  * This function allocates the IOCTL request buffer, fills it
1011  * with requisite parameters and calls the IOCTL handler.
1012  */
1013 int mwifiex_set_encode(struct mwifiex_private *priv, struct key_params *kp,
1014                        const u8 *key, int key_len, u8 key_index,
1015                        const u8 *mac_addr, int disable)
1016 {
1017         struct mwifiex_ds_encrypt_key encrypt_key;
1018
1019         memset(&encrypt_key, 0, sizeof(struct mwifiex_ds_encrypt_key));
1020         encrypt_key.key_len = key_len;
1021
1022         if (kp && kp->cipher == WLAN_CIPHER_SUITE_AES_CMAC)
1023                 encrypt_key.is_igtk_key = true;
1024
1025         if (!disable) {
1026                 encrypt_key.key_index = key_index;
1027                 if (key_len)
1028                         memcpy(encrypt_key.key_material, key, key_len);
1029                 if (mac_addr)
1030                         memcpy(encrypt_key.mac_addr, mac_addr, ETH_ALEN);
1031                 if (kp && kp->seq && kp->seq_len)
1032                         memcpy(encrypt_key.pn, kp->seq, kp->seq_len);
1033         } else {
1034                 encrypt_key.key_disable = true;
1035                 if (mac_addr)
1036                         memcpy(encrypt_key.mac_addr, mac_addr, ETH_ALEN);
1037         }
1038
1039         return mwifiex_sec_ioctl_encrypt_key(priv, &encrypt_key);
1040 }
1041
1042 /*
1043  * Sends IOCTL request to get extended version.
1044  *
1045  * This function allocates the IOCTL request buffer, fills it
1046  * with requisite parameters and calls the IOCTL handler.
1047  */
1048 int
1049 mwifiex_get_ver_ext(struct mwifiex_private *priv)
1050 {
1051         struct mwifiex_ver_ext ver_ext;
1052
1053         memset(&ver_ext, 0, sizeof(struct host_cmd_ds_version_ext));
1054         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_VERSION_EXT,
1055                                   HostCmd_ACT_GEN_GET, 0, &ver_ext))
1056                 return -1;
1057
1058         return 0;
1059 }
1060
1061 int
1062 mwifiex_remain_on_chan_cfg(struct mwifiex_private *priv, u16 action,
1063                            struct ieee80211_channel *chan,
1064                            unsigned int duration)
1065 {
1066         struct host_cmd_ds_remain_on_chan roc_cfg;
1067         u8 sc;
1068
1069         memset(&roc_cfg, 0, sizeof(roc_cfg));
1070         roc_cfg.action = cpu_to_le16(action);
1071         if (action == HostCmd_ACT_GEN_SET) {
1072                 roc_cfg.band_cfg = chan->band;
1073                 sc = mwifiex_chan_type_to_sec_chan_offset(NL80211_CHAN_NO_HT);
1074                 roc_cfg.band_cfg |= (sc << 2);
1075
1076                 roc_cfg.channel =
1077                         ieee80211_frequency_to_channel(chan->center_freq);
1078                 roc_cfg.duration = cpu_to_le32(duration);
1079         }
1080         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_REMAIN_ON_CHAN,
1081                                   action, 0, &roc_cfg)) {
1082                 dev_err(priv->adapter->dev, "failed to remain on channel\n");
1083                 return -1;
1084         }
1085
1086         return roc_cfg.status;
1087 }
1088
1089 int
1090 mwifiex_set_bss_role(struct mwifiex_private *priv, u8 bss_role)
1091 {
1092         if (GET_BSS_ROLE(priv) == bss_role) {
1093                 dev_dbg(priv->adapter->dev,
1094                         "info: already in the desired role.\n");
1095                 return 0;
1096         }
1097
1098         mwifiex_free_priv(priv);
1099         mwifiex_init_priv(priv);
1100
1101         priv->bss_role = bss_role;
1102         switch (bss_role) {
1103         case MWIFIEX_BSS_ROLE_UAP:
1104                 priv->bss_mode = NL80211_IFTYPE_AP;
1105                 break;
1106         case MWIFIEX_BSS_ROLE_STA:
1107         case MWIFIEX_BSS_ROLE_ANY:
1108         default:
1109                 priv->bss_mode = NL80211_IFTYPE_STATION;
1110                 break;
1111         }
1112
1113         mwifiex_send_cmd_sync(priv, HostCmd_CMD_SET_BSS_MODE,
1114                               HostCmd_ACT_GEN_SET, 0, NULL);
1115
1116         return mwifiex_sta_init_cmd(priv, false);
1117 }
1118
1119 /*
1120  * Sends IOCTL request to get statistics information.
1121  *
1122  * This function allocates the IOCTL request buffer, fills it
1123  * with requisite parameters and calls the IOCTL handler.
1124  */
1125 int
1126 mwifiex_get_stats_info(struct mwifiex_private *priv,
1127                        struct mwifiex_ds_get_stats *log)
1128 {
1129         return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_GET_LOG,
1130                                      HostCmd_ACT_GEN_GET, 0, log);
1131 }
1132
1133 /*
1134  * IOCTL request handler to read/write register.
1135  *
1136  * This function prepares the correct firmware command and
1137  * issues it.
1138  *
1139  * Access to the following registers are supported -
1140  *      - MAC
1141  *      - BBP
1142  *      - RF
1143  *      - PMIC
1144  *      - CAU
1145  */
1146 static int mwifiex_reg_mem_ioctl_reg_rw(struct mwifiex_private *priv,
1147                                         struct mwifiex_ds_reg_rw *reg_rw,
1148                                         u16 action)
1149 {
1150         u16 cmd_no;
1151
1152         switch (le32_to_cpu(reg_rw->type)) {
1153         case MWIFIEX_REG_MAC:
1154                 cmd_no = HostCmd_CMD_MAC_REG_ACCESS;
1155                 break;
1156         case MWIFIEX_REG_BBP:
1157                 cmd_no = HostCmd_CMD_BBP_REG_ACCESS;
1158                 break;
1159         case MWIFIEX_REG_RF:
1160                 cmd_no = HostCmd_CMD_RF_REG_ACCESS;
1161                 break;
1162         case MWIFIEX_REG_PMIC:
1163                 cmd_no = HostCmd_CMD_PMIC_REG_ACCESS;
1164                 break;
1165         case MWIFIEX_REG_CAU:
1166                 cmd_no = HostCmd_CMD_CAU_REG_ACCESS;
1167                 break;
1168         default:
1169                 return -1;
1170         }
1171
1172         return mwifiex_send_cmd_sync(priv, cmd_no, action, 0, reg_rw);
1173
1174 }
1175
1176 /*
1177  * Sends IOCTL request to write to a register.
1178  *
1179  * This function allocates the IOCTL request buffer, fills it
1180  * with requisite parameters and calls the IOCTL handler.
1181  */
1182 int
1183 mwifiex_reg_write(struct mwifiex_private *priv, u32 reg_type,
1184                   u32 reg_offset, u32 reg_value)
1185 {
1186         struct mwifiex_ds_reg_rw reg_rw;
1187
1188         reg_rw.type = cpu_to_le32(reg_type);
1189         reg_rw.offset = cpu_to_le32(reg_offset);
1190         reg_rw.value = cpu_to_le32(reg_value);
1191
1192         return mwifiex_reg_mem_ioctl_reg_rw(priv, &reg_rw, HostCmd_ACT_GEN_SET);
1193 }
1194
1195 /*
1196  * Sends IOCTL request to read from a register.
1197  *
1198  * This function allocates the IOCTL request buffer, fills it
1199  * with requisite parameters and calls the IOCTL handler.
1200  */
1201 int
1202 mwifiex_reg_read(struct mwifiex_private *priv, u32 reg_type,
1203                  u32 reg_offset, u32 *value)
1204 {
1205         int ret;
1206         struct mwifiex_ds_reg_rw reg_rw;
1207
1208         reg_rw.type = cpu_to_le32(reg_type);
1209         reg_rw.offset = cpu_to_le32(reg_offset);
1210         ret = mwifiex_reg_mem_ioctl_reg_rw(priv, &reg_rw, HostCmd_ACT_GEN_GET);
1211
1212         if (ret)
1213                 goto done;
1214
1215         *value = le32_to_cpu(reg_rw.value);
1216
1217 done:
1218         return ret;
1219 }
1220
1221 /*
1222  * Sends IOCTL request to read from EEPROM.
1223  *
1224  * This function allocates the IOCTL request buffer, fills it
1225  * with requisite parameters and calls the IOCTL handler.
1226  */
1227 int
1228 mwifiex_eeprom_read(struct mwifiex_private *priv, u16 offset, u16 bytes,
1229                     u8 *value)
1230 {
1231         int ret;
1232         struct mwifiex_ds_read_eeprom rd_eeprom;
1233
1234         rd_eeprom.offset = cpu_to_le16((u16) offset);
1235         rd_eeprom.byte_count = cpu_to_le16((u16) bytes);
1236
1237         /* Send request to firmware */
1238         ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_EEPROM_ACCESS,
1239                                     HostCmd_ACT_GEN_GET, 0, &rd_eeprom);
1240
1241         if (!ret)
1242                 memcpy(value, rd_eeprom.value, MAX_EEPROM_DATA);
1243         return ret;
1244 }
1245
1246 /*
1247  * This function sets a generic IE. In addition to generic IE, it can
1248  * also handle WPA, WPA2 and WAPI IEs.
1249  */
1250 static int
1251 mwifiex_set_gen_ie_helper(struct mwifiex_private *priv, u8 *ie_data_ptr,
1252                           u16 ie_len)
1253 {
1254         int ret = 0;
1255         struct ieee_types_vendor_header *pvendor_ie;
1256         const u8 wpa_oui[] = { 0x00, 0x50, 0xf2, 0x01 };
1257         const u8 wps_oui[] = { 0x00, 0x50, 0xf2, 0x04 };
1258
1259         /* If the passed length is zero, reset the buffer */
1260         if (!ie_len) {
1261                 priv->gen_ie_buf_len = 0;
1262                 priv->wps.session_enable = false;
1263
1264                 return 0;
1265         } else if (!ie_data_ptr) {
1266                 return -1;
1267         }
1268         pvendor_ie = (struct ieee_types_vendor_header *) ie_data_ptr;
1269         /* Test to see if it is a WPA IE, if not, then it is a gen IE */
1270         if (((pvendor_ie->element_id == WLAN_EID_VENDOR_SPECIFIC) &&
1271              (!memcmp(pvendor_ie->oui, wpa_oui, sizeof(wpa_oui)))) ||
1272             (pvendor_ie->element_id == WLAN_EID_RSN)) {
1273
1274                 /* IE is a WPA/WPA2 IE so call set_wpa function */
1275                 ret = mwifiex_set_wpa_ie_helper(priv, ie_data_ptr, ie_len);
1276                 priv->wps.session_enable = false;
1277
1278                 return ret;
1279         } else if (pvendor_ie->element_id == WLAN_EID_BSS_AC_ACCESS_DELAY) {
1280                 /* IE is a WAPI IE so call set_wapi function */
1281                 ret = mwifiex_set_wapi_ie(priv, ie_data_ptr, ie_len);
1282
1283                 return ret;
1284         }
1285         /*
1286          * Verify that the passed length is not larger than the
1287          * available space remaining in the buffer
1288          */
1289         if (ie_len < (sizeof(priv->gen_ie_buf) - priv->gen_ie_buf_len)) {
1290
1291                 /* Test to see if it is a WPS IE, if so, enable
1292                  * wps session flag
1293                  */
1294                 pvendor_ie = (struct ieee_types_vendor_header *) ie_data_ptr;
1295                 if ((pvendor_ie->element_id == WLAN_EID_VENDOR_SPECIFIC) &&
1296                     (!memcmp(pvendor_ie->oui, wps_oui, sizeof(wps_oui)))) {
1297                         priv->wps.session_enable = true;
1298                         dev_dbg(priv->adapter->dev,
1299                                 "info: WPS Session Enabled.\n");
1300                         ret = mwifiex_set_wps_ie(priv, ie_data_ptr, ie_len);
1301                 }
1302
1303                 /* Append the passed data to the end of the
1304                    genIeBuffer */
1305                 memcpy(priv->gen_ie_buf + priv->gen_ie_buf_len, ie_data_ptr,
1306                        ie_len);
1307                 /* Increment the stored buffer length by the
1308                    size passed */
1309                 priv->gen_ie_buf_len += ie_len;
1310         } else {
1311                 /* Passed data does not fit in the remaining
1312                    buffer space */
1313                 ret = -1;
1314         }
1315
1316         /* Return 0, or -1 for error case */
1317         return ret;
1318 }
1319
1320 /*
1321  * IOCTL request handler to set/get generic IE.
1322  *
1323  * In addition to various generic IEs, this function can also be
1324  * used to set the ARP filter.
1325  */
1326 static int mwifiex_misc_ioctl_gen_ie(struct mwifiex_private *priv,
1327                                      struct mwifiex_ds_misc_gen_ie *gen_ie,
1328                                      u16 action)
1329 {
1330         struct mwifiex_adapter *adapter = priv->adapter;
1331
1332         switch (gen_ie->type) {
1333         case MWIFIEX_IE_TYPE_GEN_IE:
1334                 if (action == HostCmd_ACT_GEN_GET) {
1335                         gen_ie->len = priv->wpa_ie_len;
1336                         memcpy(gen_ie->ie_data, priv->wpa_ie, gen_ie->len);
1337                 } else {
1338                         mwifiex_set_gen_ie_helper(priv, gen_ie->ie_data,
1339                                                   (u16) gen_ie->len);
1340                 }
1341                 break;
1342         case MWIFIEX_IE_TYPE_ARP_FILTER:
1343                 memset(adapter->arp_filter, 0, sizeof(adapter->arp_filter));
1344                 if (gen_ie->len > ARP_FILTER_MAX_BUF_SIZE) {
1345                         adapter->arp_filter_size = 0;
1346                         dev_err(adapter->dev, "invalid ARP filter size\n");
1347                         return -1;
1348                 } else {
1349                         memcpy(adapter->arp_filter, gen_ie->ie_data,
1350                                gen_ie->len);
1351                         adapter->arp_filter_size = gen_ie->len;
1352                 }
1353                 break;
1354         default:
1355                 dev_err(adapter->dev, "invalid IE type\n");
1356                 return -1;
1357         }
1358         return 0;
1359 }
1360
1361 /*
1362  * Sends IOCTL request to set a generic IE.
1363  *
1364  * This function allocates the IOCTL request buffer, fills it
1365  * with requisite parameters and calls the IOCTL handler.
1366  */
1367 int
1368 mwifiex_set_gen_ie(struct mwifiex_private *priv, u8 *ie, int ie_len)
1369 {
1370         struct mwifiex_ds_misc_gen_ie gen_ie;
1371
1372         if (ie_len > IEEE_MAX_IE_SIZE)
1373                 return -EFAULT;
1374
1375         gen_ie.type = MWIFIEX_IE_TYPE_GEN_IE;
1376         gen_ie.len = ie_len;
1377         memcpy(gen_ie.ie_data, ie, ie_len);
1378         if (mwifiex_misc_ioctl_gen_ie(priv, &gen_ie, HostCmd_ACT_GEN_SET))
1379                 return -EFAULT;
1380
1381         return 0;
1382 }