drivers/net/wireless/marvell/mwifiex/sta_ioctl.c

   1 /*
   2  * Marvell Wireless LAN device driver: functions for station ioctl
   3  *
   4  * Copyright (C) 2011-2014, Marvell International Ltd.
   5  *
   6  * This software file (the "File") is distributed by Marvell International
   7  * Ltd. under the terms of the GNU General Public License Version 2, June 1991
   8  * (the "License").  You may use, redistribute and/or modify this File in
   9  * accordance with the terms and conditions of the License, a copy of which
  10  * is available by writing to the Free Software Foundation, Inc.,
  11  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
  12  * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
  13  *
  14  * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
  16  * ARE EXPRESSLY DISCLAIMED.  The License provides additional details about
  17  * this warranty disclaimer.
  18  */
  19
  20 #include "decl.h"
  21 #include "ioctl.h"
  22 #include "util.h"
  23 #include "fw.h"
  24 #include "main.h"
  25 #include "wmm.h"
  26 #include "11n.h"
  27 #include "cfg80211.h"
  28
  29 static int disconnect_on_suspend;
  30 module_param(disconnect_on_suspend, int, 0644);
  31
  32 /*
  33  * Copies the multicast address list from device to driver.
  34  *
  35  * This function does not validate the destination memory for
  36  * size, and the calling function must ensure enough memory is
  37  * available.
  38  */
  39 int mwifiex_copy_mcast_addr(struct mwifiex_multicast_list *mlist,
  40                             struct net_device *dev)
  41 {
  42         int i = 0;
  43         struct netdev_hw_addr *ha;
  44
  45         netdev_for_each_mc_addr(ha, dev)
  46                 memcpy(&mlist->mac_list[i++], ha->addr, ETH_ALEN);
  47
  48         return i;
  49 }
  50
  51 /*
  52  * Wait queue completion handler.
  53  *
  54  * This function waits on a cmd wait queue. It also cancels the pending
  55  * request after waking up, in case of errors.
  56  */
  57 int mwifiex_wait_queue_complete(struct mwifiex_adapter *adapter,
  58                                 struct cmd_ctrl_node *cmd_queued)
  59 {
  60         int status;
  61
  62         /* Wait for completion */
  63         status = wait_event_interruptible_timeout(adapter->cmd_wait_q.wait,
  64                                                   *(cmd_queued->condition),
  65                                                   (12 * HZ));
  66         if (status <= 0) {
  67                 if (status == 0)
  68                         status = -ETIMEDOUT;
  69                 mwifiex_dbg(adapter, ERROR, "cmd_wait_q terminated: %d\n",
  70                             status);
  71                 mwifiex_cancel_all_pending_cmd(adapter);
  72                 return status;
  73         }
  74
  75         status = adapter->cmd_wait_q.status;
  76         adapter->cmd_wait_q.status = 0;
  77
  78         return status;
  79 }
  80
  81 /*
  82  * This function prepares the correct firmware command and
  83  * issues it to set the multicast list.
  84  *
  85  * This function can be used to enable promiscuous mode, or enable all
  86  * multicast packets, or to enable selective multicast.
  87  */
  88 int mwifiex_request_set_multicast_list(struct mwifiex_private *priv,
  89                                 struct mwifiex_multicast_list *mcast_list)
  90 {
  91         int ret = 0;
  92         u16 old_pkt_filter;
  93
  94         old_pkt_filter = priv->curr_pkt_filter;
  95
  96         if (mcast_list->mode == MWIFIEX_PROMISC_MODE) {
  97                 mwifiex_dbg(priv->adapter, INFO,
  98                             "info: Enable Promiscuous mode\n");
  99                 priv->curr_pkt_filter |= HostCmd_ACT_MAC_PROMISCUOUS_ENABLE;
 100                 priv->curr_pkt_filter &=
 101                         ~HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE;
 102         } else {
 103                 /* Multicast */
 104                 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_PROMISCUOUS_ENABLE;
 105                 if (mcast_list->mode == MWIFIEX_ALL_MULTI_MODE) {
 106                         mwifiex_dbg(priv->adapter, INFO,
 107                                     "info: Enabling All Multicast!\n");
 108                         priv->curr_pkt_filter |=
 109                                 HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE;
 110                 } else {
 111                         priv->curr_pkt_filter &=
 112                                 ~HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE;
 113                         mwifiex_dbg(priv->adapter, INFO,
 114                                     "info: Set multicast list=%d\n",
 115                                     mcast_list->num_multicast_addr);
 116                         /* Send multicast addresses to firmware */
 117                         ret = mwifiex_send_cmd(priv,
 118                                                HostCmd_CMD_MAC_MULTICAST_ADR,
 119                                                HostCmd_ACT_GEN_SET, 0,
 120                                                mcast_list, false);
 121                 }
 122         }
 123         mwifiex_dbg(priv->adapter, INFO,
 124                     "info: old_pkt_filter=%#x, curr_pkt_filter=%#x\n",
 125                     old_pkt_filter, priv->curr_pkt_filter);
 126         if (old_pkt_filter != priv->curr_pkt_filter) {
 127                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_MAC_CONTROL,
 128                                        HostCmd_ACT_GEN_SET,
 129                                        0, &priv->curr_pkt_filter, false);
 130         }
 131
 132         return ret;
 133 }
 134
 135 /*
 136  * This function fills bss descriptor structure using provided
 137  * information.
 138  * beacon_ie buffer is allocated in this function. It is caller's
 139  * responsibility to free the memory.
 140  */
 141 int mwifiex_fill_new_bss_desc(struct mwifiex_private *priv,
 142                               struct cfg80211_bss *bss,
 143                               struct mwifiex_bssdescriptor *bss_desc)
 144 {
 145         u8 *beacon_ie;
 146         size_t beacon_ie_len;
 147         struct mwifiex_bss_priv *bss_priv = (void *)bss->priv;
 148         const struct cfg80211_bss_ies *ies;
 149
 150         rcu_read_lock();
 151         ies = rcu_dereference(bss->ies);
 152         beacon_ie = kmemdup(ies->data, ies->len, GFP_ATOMIC);
 153         beacon_ie_len = ies->len;
 154         bss_desc->timestamp = ies->tsf;
 155         rcu_read_unlock();
 156
 157         if (!beacon_ie) {
 158                 mwifiex_dbg(priv->adapter, ERROR,
 159                             " failed to alloc beacon_ie\n");
 160                 return -ENOMEM;
 161         }
 162
 163         memcpy(bss_desc->mac_address, bss->bssid, ETH_ALEN);
 164         bss_desc->rssi = bss->signal;
 165         /* The caller of this function will free beacon_ie */
 166         bss_desc->beacon_buf = beacon_ie;
 167         bss_desc->beacon_buf_size = beacon_ie_len;
 168         bss_desc->beacon_period = bss->beacon_interval;
 169         bss_desc->cap_info_bitmap = bss->capability;
 170         bss_desc->bss_band = bss_priv->band;
 171         bss_desc->fw_tsf = bss_priv->fw_tsf;
 172         if (bss_desc->cap_info_bitmap & WLAN_CAPABILITY_PRIVACY) {
 173                 mwifiex_dbg(priv->adapter, INFO,
 174                             "info: InterpretIE: AP WEP enabled\n");
 175                 bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_8021X_WEP;
 176         } else {
 177                 bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_ACCEPT_ALL;
 178         }
 179         if (bss_desc->cap_info_bitmap & WLAN_CAPABILITY_IBSS)
 180                 bss_desc->bss_mode = NL80211_IFTYPE_ADHOC;
 181         else
 182                 bss_desc->bss_mode = NL80211_IFTYPE_STATION;
 183
 184         /* Disable 11ac by default. Enable it only where there
 185          * exist VHT_CAP IE in AP beacon
 186          */
 187         bss_desc->disable_11ac = true;
 188
 189         if (bss_desc->cap_info_bitmap & WLAN_CAPABILITY_SPECTRUM_MGMT)
 190                 bss_desc->sensed_11h = true;
 191
 192         return mwifiex_update_bss_desc_with_ie(priv->adapter, bss_desc);
 193 }
 194
 195 void mwifiex_dnld_txpwr_table(struct mwifiex_private *priv)
 196 {
 197         if (priv->adapter->dt_node) {
 198                 char txpwr[] = {"marvell,00_txpwrlimit"};
 199
 200                 memcpy(&txpwr[8], priv->adapter->country_code, 2);
 201                 mwifiex_dnld_dt_cfgdata(priv, priv->adapter->dt_node, txpwr);
 202         }
 203 }
 204
 205 static int mwifiex_process_country_ie(struct mwifiex_private *priv,
 206                                       struct cfg80211_bss *bss)
 207 {
 208         const u8 *country_ie;
 209         u8 country_ie_len;
 210         struct mwifiex_802_11d_domain_reg *domain_info =
 211                                         &priv->adapter->domain_reg;
 212
 213         rcu_read_lock();
 214         country_ie = ieee80211_bss_get_ie(bss, WLAN_EID_COUNTRY);
 215         if (!country_ie) {
 216                 rcu_read_unlock();
 217                 return 0;
 218         }
 219
 220         country_ie_len = country_ie[1];
 221         if (country_ie_len < IEEE80211_COUNTRY_IE_MIN_LEN) {
 222                 rcu_read_unlock();
 223                 return 0;
 224         }
 225
 226         if (!strncmp(priv->adapter->country_code, &country_ie[2], 2)) {
 227                 rcu_read_unlock();
 228                 mwifiex_dbg(priv->adapter, INFO,
 229                             "11D: skip setting domain info in FW\n");
 230                 return 0;
 231         }
 232         memcpy(priv->adapter->country_code, &country_ie[2], 2);
 233
 234         domain_info->country_code[0] = country_ie[2];
 235         domain_info->country_code[1] = country_ie[3];
 236         domain_info->country_code[2] = ' ';
 237
 238         country_ie_len -= IEEE80211_COUNTRY_STRING_LEN;
 239
 240         domain_info->no_of_triplet =
 241                 country_ie_len / sizeof(struct ieee80211_country_ie_triplet);
 242
 243         memcpy((u8 *)domain_info->triplet,
 244                &country_ie[2] + IEEE80211_COUNTRY_STRING_LEN, country_ie_len);
 245
 246         rcu_read_unlock();
 247
 248         if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
 249                              HostCmd_ACT_GEN_SET, 0, NULL, false)) {
 250                 mwifiex_dbg(priv->adapter, ERROR,
 251                             "11D: setting domain info in FW fail\n");
 252                 return -1;
 253         }
 254
 255         mwifiex_dnld_txpwr_table(priv);
 256
 257         return 0;
 258 }
 259
 260 /*
 261  * In Ad-Hoc mode, the IBSS is created if not found in scan list.
 262  * In both Ad-Hoc and infra mode, an deauthentication is performed
 263  * first.
 264  */
 265 int mwifiex_bss_start(struct mwifiex_private *priv, struct cfg80211_bss *bss,
 266                       struct cfg80211_ssid *req_ssid)
 267 {
 268         int ret;
 269         struct mwifiex_adapter *adapter = priv->adapter;
 270         struct mwifiex_bssdescriptor *bss_desc = NULL;
 271
 272         priv->scan_block = false;
 273
 274         if (bss) {
 275                 if (adapter->region_code == 0x00)
 276                         mwifiex_process_country_ie(priv, bss);
 277
 278                 /* Allocate and fill new bss descriptor */
 279                 bss_desc = kzalloc(sizeof(struct mwifiex_bssdescriptor),
 280                                    GFP_KERNEL);
 281                 if (!bss_desc)
 282                         return -ENOMEM;
 283
 284                 ret = mwifiex_fill_new_bss_desc(priv, bss, bss_desc);
 285                 if (ret)
 286                         goto done;
 287         }
 288
 289         if (priv->bss_mode == NL80211_IFTYPE_STATION ||
 290             priv->bss_mode == NL80211_IFTYPE_P2P_CLIENT) {
 291                 u8 config_bands;
 292
 293                 if (!bss_desc)
 294                         return -1;
 295
 296                 if (mwifiex_band_to_radio_type(bss_desc->bss_band) ==
 297                                                 HostCmd_SCAN_RADIO_TYPE_BG) {
 298                         config_bands = BAND_B | BAND_G | BAND_GN;
 299                 } else {
 300                         config_bands = BAND_A | BAND_AN;
 301                         if (adapter->fw_bands & BAND_AAC)
 302                                 config_bands |= BAND_AAC;
 303                 }
 304
 305                 if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands))
 306                         adapter->config_bands = config_bands;
 307
 308                 ret = mwifiex_check_network_compatibility(priv, bss_desc);
 309                 if (ret)
 310                         goto done;
 311
 312                 if (mwifiex_11h_get_csa_closed_channel(priv) ==
 313                                                         (u8)bss_desc->channel) {
 314                         mwifiex_dbg(adapter, ERROR,
 315                                     "Attempt to reconnect on csa closed chan(%d)\n",
 316                                     bss_desc->channel);
 317                         goto done;
 318                 }
 319
 320                 mwifiex_dbg(adapter, INFO,
 321                             "info: SSID found in scan list ...\t"
 322                             "associating...\n");
 323
 324                 mwifiex_stop_net_dev_queue(priv->netdev, adapter);
 325                 if (netif_carrier_ok(priv->netdev))
 326                         netif_carrier_off(priv->netdev);
 327
 328                 /* Clear any past association response stored for
 329                  * application retrieval */
 330                 priv->assoc_rsp_size = 0;
 331                 ret = mwifiex_associate(priv, bss_desc);
 332
 333                 /* If auth type is auto and association fails using open mode,
 334                  * try to connect using shared mode */
 335                 if (ret == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG &&
 336                     priv->sec_info.is_authtype_auto &&
 337                     priv->sec_info.wep_enabled) {
 338                         priv->sec_info.authentication_mode =
 339                                                 NL80211_AUTHTYPE_SHARED_KEY;
 340                         ret = mwifiex_associate(priv, bss_desc);
 341                 }
 342
 343                 if (bss)
 344                         cfg80211_put_bss(priv->adapter->wiphy, bss);
 345         } else {
 346                 /* Adhoc mode */
 347                 /* If the requested SSID matches current SSID, return */
 348                 if (bss_desc && bss_desc->ssid.ssid_len &&
 349                     (!mwifiex_ssid_cmp(&priv->curr_bss_params.bss_descriptor.
 350                                        ssid, &bss_desc->ssid))) {
 351                         ret = 0;
 352                         goto done;
 353                 }
 354
 355                 priv->adhoc_is_link_sensed = false;
 356
 357                 ret = mwifiex_check_network_compatibility(priv, bss_desc);
 358
 359                 mwifiex_stop_net_dev_queue(priv->netdev, adapter);
 360                 if (netif_carrier_ok(priv->netdev))
 361                         netif_carrier_off(priv->netdev);
 362
 363                 if (!ret) {
 364                         mwifiex_dbg(adapter, INFO,
 365                                     "info: network found in scan\t"
 366                                     " list. Joining...\n");
 367                         ret = mwifiex_adhoc_join(priv, bss_desc);
 368                         if (bss)
 369                                 cfg80211_put_bss(priv->adapter->wiphy, bss);
 370                 } else {
 371                         mwifiex_dbg(adapter, INFO,
 372                                     "info: Network not found in\t"
 373                                     "the list, creating adhoc with ssid = %s\n",
 374                                     req_ssid->ssid);
 375                         ret = mwifiex_adhoc_start(priv, req_ssid);
 376                 }
 377         }
 378
 379 done:
 380         /* beacon_ie buffer was allocated in function
 381          * mwifiex_fill_new_bss_desc(). Free it now.
 382          */
 383         if (bss_desc)
 384                 kfree(bss_desc->beacon_buf);
 385         kfree(bss_desc);
 386         return ret;
 387 }
 388
 389 /*
 390  * IOCTL request handler to set host sleep configuration.
 391  *
 392  * This function prepares the correct firmware command and
 393  * issues it.
 394  */
 395 int mwifiex_set_hs_params(struct mwifiex_private *priv, u16 action,
 396                           int cmd_type, struct mwifiex_ds_hs_cfg *hs_cfg)
 397
 398 {
 399         struct mwifiex_adapter *adapter = priv->adapter;
 400         int status = 0;
 401         u32 prev_cond = 0;
 402
 403         if (!hs_cfg)
 404                 return -ENOMEM;
 405
 406         switch (action) {
 407         case HostCmd_ACT_GEN_SET:
 408                 if (adapter->pps_uapsd_mode) {
 409                         mwifiex_dbg(adapter, INFO,
 410                                     "info: Host Sleep IOCTL\t"
 411                                     "is blocked in UAPSD/PPS mode\n");
 412                         status = -1;
 413                         break;
 414                 }
 415                 if (hs_cfg->is_invoke_hostcmd) {
 416                         if (hs_cfg->conditions == HS_CFG_CANCEL) {
 417                                 if (!adapter->is_hs_configured)
 418                                         /* Already cancelled */
 419                                         break;
 420                                 /* Save previous condition */
 421                                 prev_cond = le32_to_cpu(adapter->hs_cfg
 422                                                         .conditions);
 423                                 adapter->hs_cfg.conditions =
 424                                                 cpu_to_le32(hs_cfg->conditions);
 425                         } else if (hs_cfg->conditions) {
 426                                 adapter->hs_cfg.conditions =
 427                                                 cpu_to_le32(hs_cfg->conditions);
 428                                 adapter->hs_cfg.gpio = (u8)hs_cfg->gpio;
 429                                 if (hs_cfg->gap)
 430                                         adapter->hs_cfg.gap = (u8)hs_cfg->gap;
 431                         } else if (adapter->hs_cfg.conditions ==
 432                                    cpu_to_le32(HS_CFG_CANCEL)) {
 433                                 /* Return failure if no parameters for HS
 434                                    enable */
 435                                 status = -1;
 436                                 break;
 437                         }
 438
 439                         status = mwifiex_send_cmd(priv,
 440                                                   HostCmd_CMD_802_11_HS_CFG_ENH,
 441                                                   HostCmd_ACT_GEN_SET, 0,
 442                                                   &adapter->hs_cfg,
 443                                                   cmd_type == MWIFIEX_SYNC_CMD);
 444
 445                         if (hs_cfg->conditions == HS_CFG_CANCEL)
 446                                 /* Restore previous condition */
 447                                 adapter->hs_cfg.conditions =
 448                                                 cpu_to_le32(prev_cond);
 449                 } else {
 450                         adapter->hs_cfg.conditions =
 451                                                 cpu_to_le32(hs_cfg->conditions);
 452                         adapter->hs_cfg.gpio = (u8)hs_cfg->gpio;
 453                         adapter->hs_cfg.gap = (u8)hs_cfg->gap;
 454                 }
 455                 break;
 456         case HostCmd_ACT_GEN_GET:
 457                 hs_cfg->conditions = le32_to_cpu(adapter->hs_cfg.conditions);
 458                 hs_cfg->gpio = adapter->hs_cfg.gpio;
 459                 hs_cfg->gap = adapter->hs_cfg.gap;
 460                 break;
 461         default:
 462                 status = -1;
 463                 break;
 464         }
 465
 466         return status;
 467 }
 468
 469 /*
 470  * Sends IOCTL request to cancel the existing Host Sleep configuration.
 471  *
 472  * This function allocates the IOCTL request buffer, fills it
 473  * with requisite parameters and calls the IOCTL handler.
 474  */
 475 int mwifiex_cancel_hs(struct mwifiex_private *priv, int cmd_type)
 476 {
 477         struct mwifiex_ds_hs_cfg hscfg;
 478
 479         hscfg.conditions = HS_CFG_CANCEL;
 480         hscfg.is_invoke_hostcmd = true;
 481
 482         return mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_SET,
 483                                     cmd_type, &hscfg);
 484 }
 485 EXPORT_SYMBOL_GPL(mwifiex_cancel_hs);
 486
 487 /*
 488  * Sends IOCTL request to cancel the existing Host Sleep configuration.
 489  *
 490  * This function allocates the IOCTL request buffer, fills it
 491  * with requisite parameters and calls the IOCTL handler.
 492  */
 493 int mwifiex_enable_hs(struct mwifiex_adapter *adapter)
 494 {
 495         struct mwifiex_ds_hs_cfg hscfg;
 496         struct mwifiex_private *priv;
 497         int i;
 498
 499         if (disconnect_on_suspend) {
 500                 for (i = 0; i < adapter->priv_num; i++) {
 501                         priv = adapter->priv[i];
 502                         if (priv)
 503                                 mwifiex_deauthenticate(priv, NULL);
 504                 }
 505         }
 506
 507         if (adapter->hs_activated) {
 508                 mwifiex_dbg(adapter, CMD,
 509                             "cmd: HS Already activated\n");
 510                 return true;
 511         }
 512
 513         adapter->hs_activate_wait_q_woken = false;
 514
 515         memset(&hscfg, 0, sizeof(struct mwifiex_ds_hs_cfg));
 516         hscfg.is_invoke_hostcmd = true;
 517
 518         adapter->hs_enabling = true;
 519         mwifiex_cancel_all_pending_cmd(adapter);
 520
 521         if (mwifiex_set_hs_params(mwifiex_get_priv(adapter,
 522                                                    MWIFIEX_BSS_ROLE_STA),
 523                                   HostCmd_ACT_GEN_SET, MWIFIEX_SYNC_CMD,
 524                                   &hscfg)) {
 525                 mwifiex_dbg(adapter, ERROR,
 526                             "IOCTL request HS enable failed\n");
 527                 return false;
 528         }
 529
 530         if (wait_event_interruptible_timeout(adapter->hs_activate_wait_q,
 531                                              adapter->hs_activate_wait_q_woken,
 532                                              (10 * HZ)) <= 0) {
 533                 mwifiex_dbg(adapter, ERROR,
 534                             "hs_activate_wait_q terminated\n");
 535                 return false;
 536         }
 537
 538         return true;
 539 }
 540 EXPORT_SYMBOL_GPL(mwifiex_enable_hs);
 541
 542 /*
 543  * IOCTL request handler to get BSS information.
 544  *
 545  * This function collates the information from different driver structures
 546  * to send to the user.
 547  */
 548 int mwifiex_get_bss_info(struct mwifiex_private *priv,
 549                          struct mwifiex_bss_info *info)
 550 {
 551         struct mwifiex_adapter *adapter = priv->adapter;
 552         struct mwifiex_bssdescriptor *bss_desc;
 553
 554         if (!info)
 555                 return -1;
 556
 557         bss_desc = &priv->curr_bss_params.bss_descriptor;
 558
 559         info->bss_mode = priv->bss_mode;
 560
 561         memcpy(&info->ssid, &bss_desc->ssid, sizeof(struct cfg80211_ssid));
 562
 563         memcpy(&info->bssid, &bss_desc->mac_address, ETH_ALEN);
 564
 565         info->bss_chan = bss_desc->channel;
 566
 567         memcpy(info->country_code, adapter->country_code,
 568                IEEE80211_COUNTRY_STRING_LEN);
 569
 570         info->media_connected = priv->media_connected;
 571
 572         info->max_power_level = priv->max_tx_power_level;
 573         info->min_power_level = priv->min_tx_power_level;
 574
 575         info->adhoc_state = priv->adhoc_state;
 576
 577         info->bcn_nf_last = priv->bcn_nf_last;
 578
 579         if (priv->sec_info.wep_enabled)
 580                 info->wep_status = true;
 581         else
 582                 info->wep_status = false;
 583
 584         info->is_hs_configured = adapter->is_hs_configured;
 585         info->is_deep_sleep = adapter->is_deep_sleep;
 586
 587         return 0;
 588 }
 589
 590 /*
 591  * The function disables auto deep sleep mode.
 592  */
 593 int mwifiex_disable_auto_ds(struct mwifiex_private *priv)
 594 {
 595         struct mwifiex_ds_auto_ds auto_ds;
 596
 597         auto_ds.auto_ds = DEEP_SLEEP_OFF;
 598
 599         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_PS_MODE_ENH,
 600                                 DIS_AUTO_PS, BITMAP_AUTO_DS, &auto_ds, true);
 601 }
 602 EXPORT_SYMBOL_GPL(mwifiex_disable_auto_ds);
 603
 604 /*
 605  * Sends IOCTL request to get the data rate.
 606  *
 607  * This function allocates the IOCTL request buffer, fills it
 608  * with requisite parameters and calls the IOCTL handler.
 609  */
 610 int mwifiex_drv_get_data_rate(struct mwifiex_private *priv, u32 *rate)
 611 {
 612         int ret;
 613
 614         ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_TX_RATE_QUERY,
 615                                HostCmd_ACT_GEN_GET, 0, NULL, true);
 616
 617         if (!ret) {
 618                 if (priv->is_data_rate_auto)
 619                         *rate = mwifiex_index_to_data_rate(priv, priv->tx_rate,
 620                                                            priv->tx_htinfo);
 621                 else
 622                         *rate = priv->data_rate;
 623         }
 624
 625         return ret;
 626 }
 627
 628 /*
 629  * IOCTL request handler to set tx power configuration.
 630  *
 631  * This function prepares the correct firmware command and
 632  * issues it.
 633  *
 634  * For non-auto power mode, all the following power groups are set -
 635  *      - Modulation class HR/DSSS
 636  *      - Modulation class OFDM
 637  *      - Modulation class HTBW20
 638  *      - Modulation class HTBW40
 639  */
 640 int mwifiex_set_tx_power(struct mwifiex_private *priv,
 641                          struct mwifiex_power_cfg *power_cfg)
 642 {
 643         int ret;
 644         struct host_cmd_ds_txpwr_cfg *txp_cfg;
 645         struct mwifiex_types_power_group *pg_tlv;
 646         struct mwifiex_power_group *pg;
 647         u8 *buf;
 648         u16 dbm = 0;
 649
 650         if (!power_cfg->is_power_auto) {
 651                 dbm = (u16) power_cfg->power_level;
 652                 if ((dbm < priv->min_tx_power_level) ||
 653                     (dbm > priv->max_tx_power_level)) {
 654                         mwifiex_dbg(priv->adapter, ERROR,
 655                                     "txpower value %d dBm\t"
 656                                     "is out of range (%d dBm-%d dBm)\n",
 657                                     dbm, priv->min_tx_power_level,
 658                                     priv->max_tx_power_level);
 659                         return -1;
 660                 }
 661         }
 662         buf = kzalloc(MWIFIEX_SIZE_OF_CMD_BUFFER, GFP_KERNEL);
 663         if (!buf)
 664                 return -ENOMEM;
 665
 666         txp_cfg = (struct host_cmd_ds_txpwr_cfg *) buf;
 667         txp_cfg->action = cpu_to_le16(HostCmd_ACT_GEN_SET);
 668         if (!power_cfg->is_power_auto) {
 669                 txp_cfg->mode = cpu_to_le32(1);
 670                 pg_tlv = (struct mwifiex_types_power_group *)
 671                          (buf + sizeof(struct host_cmd_ds_txpwr_cfg));
 672                 pg_tlv->type = cpu_to_le16(TLV_TYPE_POWER_GROUP);
 673                 pg_tlv->length =
 674                         cpu_to_le16(4 * sizeof(struct mwifiex_power_group));
 675                 pg = (struct mwifiex_power_group *)
 676                      (buf + sizeof(struct host_cmd_ds_txpwr_cfg)
 677                       + sizeof(struct mwifiex_types_power_group));
 678                 /* Power group for modulation class HR/DSSS */
 679                 pg->first_rate_code = 0x00;
 680                 pg->last_rate_code = 0x03;
 681                 pg->modulation_class = MOD_CLASS_HR_DSSS;
 682                 pg->power_step = 0;
 683                 pg->power_min = (s8) dbm;
 684                 pg->power_max = (s8) dbm;
 685                 pg++;
 686                 /* Power group for modulation class OFDM */
 687                 pg->first_rate_code = 0x00;
 688                 pg->last_rate_code = 0x07;
 689                 pg->modulation_class = MOD_CLASS_OFDM;
 690                 pg->power_step = 0;
 691                 pg->power_min = (s8) dbm;
 692                 pg->power_max = (s8) dbm;
 693                 pg++;
 694                 /* Power group for modulation class HTBW20 */
 695                 pg->first_rate_code = 0x00;
 696                 pg->last_rate_code = 0x20;
 697                 pg->modulation_class = MOD_CLASS_HT;
 698                 pg->power_step = 0;
 699                 pg->power_min = (s8) dbm;
 700                 pg->power_max = (s8) dbm;
 701                 pg->ht_bandwidth = HT_BW_20;
 702                 pg++;
 703                 /* Power group for modulation class HTBW40 */
 704                 pg->first_rate_code = 0x00;
 705                 pg->last_rate_code = 0x20;
 706                 pg->modulation_class = MOD_CLASS_HT;
 707                 pg->power_step = 0;
 708                 pg->power_min = (s8) dbm;
 709                 pg->power_max = (s8) dbm;
 710                 pg->ht_bandwidth = HT_BW_40;
 711         }
 712         ret = mwifiex_send_cmd(priv, HostCmd_CMD_TXPWR_CFG,
 713                                HostCmd_ACT_GEN_SET, 0, buf, true);
 714
 715         kfree(buf);
 716         return ret;
 717 }
 718
 719 /*
 720  * IOCTL request handler to get power save mode.
 721  *
 722  * This function prepares the correct firmware command and
 723  * issues it.
 724  */
 725 int mwifiex_drv_set_power(struct mwifiex_private *priv, u32 *ps_mode)
 726 {
 727         int ret;
 728         struct mwifiex_adapter *adapter = priv->adapter;
 729         u16 sub_cmd;
 730
 731         if (*ps_mode)
 732                 adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_PSP;
 733         else
 734                 adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_CAM;
 735         sub_cmd = (*ps_mode) ? EN_AUTO_PS : DIS_AUTO_PS;
 736         ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_PS_MODE_ENH,
 737                                sub_cmd, BITMAP_STA_PS, NULL, true);
 738         if ((!ret) && (sub_cmd == DIS_AUTO_PS))
 739                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_PS_MODE_ENH,
 740                                        GET_PS, 0, NULL, false);
 741
 742         return ret;
 743 }
 744
 745 /*
 746  * IOCTL request handler to set/reset WPA IE.
 747  *
 748  * The supplied WPA IE is treated as a opaque buffer. Only the first field
 749  * is checked to determine WPA version. If buffer length is zero, the existing
 750  * WPA IE is reset.
 751  */
 752 static int mwifiex_set_wpa_ie_helper(struct mwifiex_private *priv,
 753                                      u8 *ie_data_ptr, u16 ie_len)
 754 {
 755         if (ie_len) {
 756                 if (ie_len > sizeof(priv->wpa_ie)) {
 757                         mwifiex_dbg(priv->adapter, ERROR,
 758                                     "failed to copy WPA IE, too big\n");
 759                         return -1;
 760                 }
 761                 memcpy(priv->wpa_ie, ie_data_ptr, ie_len);
 762                 priv->wpa_ie_len = ie_len;
 763                 mwifiex_dbg(priv->adapter, CMD,
 764                             "cmd: Set Wpa_ie_len=%d IE=%#x\n",
 765                             priv->wpa_ie_len, priv->wpa_ie[0]);
 766
 767                 if (priv->wpa_ie[0] == WLAN_EID_VENDOR_SPECIFIC) {
 768                         priv->sec_info.wpa_enabled = true;
 769                 } else if (priv->wpa_ie[0] == WLAN_EID_RSN) {
 770                         priv->sec_info.wpa2_enabled = true;
 771                 } else {
 772                         priv->sec_info.wpa_enabled = false;
 773                         priv->sec_info.wpa2_enabled = false;
 774                 }
 775         } else {
 776                 memset(priv->wpa_ie, 0, sizeof(priv->wpa_ie));
 777                 priv->wpa_ie_len = 0;
 778                 mwifiex_dbg(priv->adapter, INFO,
 779                             "info: reset wpa_ie_len=%d IE=%#x\n",
 780                             priv->wpa_ie_len, priv->wpa_ie[0]);
 781                 priv->sec_info.wpa_enabled = false;
 782                 priv->sec_info.wpa2_enabled = false;
 783         }
 784
 785         return 0;
 786 }
 787
 788 /*
 789  * IOCTL request handler to set/reset WAPI IE.
 790  *
 791  * The supplied WAPI IE is treated as a opaque buffer. Only the first field
 792  * is checked to internally enable WAPI. If buffer length is zero, the existing
 793  * WAPI IE is reset.
 794  */
 795 static int mwifiex_set_wapi_ie(struct mwifiex_private *priv,
 796                                u8 *ie_data_ptr, u16 ie_len)
 797 {
 798         if (ie_len) {
 799                 if (ie_len > sizeof(priv->wapi_ie)) {
 800                         mwifiex_dbg(priv->adapter, ERROR,
 801                                     "info: failed to copy WAPI IE, too big\n");
 802                         return -1;
 803                 }
 804                 memcpy(priv->wapi_ie, ie_data_ptr, ie_len);
 805                 priv->wapi_ie_len = ie_len;
 806                 mwifiex_dbg(priv->adapter, CMD,
 807                             "cmd: Set wapi_ie_len=%d IE=%#x\n",
 808                             priv->wapi_ie_len, priv->wapi_ie[0]);
 809
 810                 if (priv->wapi_ie[0] == WLAN_EID_BSS_AC_ACCESS_DELAY)
 811                         priv->sec_info.wapi_enabled = true;
 812         } else {
 813                 memset(priv->wapi_ie, 0, sizeof(priv->wapi_ie));
 814                 priv->wapi_ie_len = ie_len;
 815                 mwifiex_dbg(priv->adapter, INFO,
 816                             "info: Reset wapi_ie_len=%d IE=%#x\n",
 817                             priv->wapi_ie_len, priv->wapi_ie[0]);
 818                 priv->sec_info.wapi_enabled = false;
 819         }
 820         return 0;
 821 }
 822
 823 /*
 824  * IOCTL request handler to set/reset WPS IE.
 825  *
 826  * The supplied WPS IE is treated as a opaque buffer. Only the first field
 827  * is checked to internally enable WPS. If buffer length is zero, the existing
 828  * WPS IE is reset.
 829  */
 830 static int mwifiex_set_wps_ie(struct mwifiex_private *priv,
 831                                u8 *ie_data_ptr, u16 ie_len)
 832 {
 833         if (ie_len) {
 834                 if (ie_len > MWIFIEX_MAX_VSIE_LEN) {
 835                         mwifiex_dbg(priv->adapter, ERROR,
 836                                     "info: failed to copy WPS IE, too big\n");
 837                         return -1;
 838                 }
 839
 840                 priv->wps_ie = kzalloc(MWIFIEX_MAX_VSIE_LEN, GFP_KERNEL);
 841                 if (!priv->wps_ie)
 842                         return -ENOMEM;
 843
 844                 memcpy(priv->wps_ie, ie_data_ptr, ie_len);
 845                 priv->wps_ie_len = ie_len;
 846                 mwifiex_dbg(priv->adapter, CMD,
 847                             "cmd: Set wps_ie_len=%d IE=%#x\n",
 848                             priv->wps_ie_len, priv->wps_ie[0]);
 849         } else {
 850                 kfree(priv->wps_ie);
 851                 priv->wps_ie_len = ie_len;
 852                 mwifiex_dbg(priv->adapter, INFO,
 853                             "info: Reset wps_ie_len=%d\n", priv->wps_ie_len);
 854         }
 855         return 0;
 856 }
 857
 858 /*
 859  * IOCTL request handler to set WAPI key.
 860  *
 861  * This function prepares the correct firmware command and
 862  * issues it.
 863  */
 864 static int mwifiex_sec_ioctl_set_wapi_key(struct mwifiex_private *priv,
 865                                struct mwifiex_ds_encrypt_key *encrypt_key)
 866 {
 867
 868         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
 869                                 HostCmd_ACT_GEN_SET, KEY_INFO_ENABLED,
 870                                 encrypt_key, true);
 871 }
 872
 873 /*
 874  * IOCTL request handler to set WEP network key.
 875  *
 876  * This function prepares the correct firmware command and
 877  * issues it, after validation checks.
 878  */
 879 static int mwifiex_sec_ioctl_set_wep_key(struct mwifiex_private *priv,
 880                               struct mwifiex_ds_encrypt_key *encrypt_key)
 881 {
 882         struct mwifiex_adapter *adapter = priv->adapter;
 883         int ret;
 884         struct mwifiex_wep_key *wep_key;
 885         int index;
 886
 887         if (priv->wep_key_curr_index >= NUM_WEP_KEYS)
 888                 priv->wep_key_curr_index = 0;
 889         wep_key = &priv->wep_key[priv->wep_key_curr_index];
 890         index = encrypt_key->key_index;
 891         if (encrypt_key->key_disable) {
 892                 priv->sec_info.wep_enabled = 0;
 893         } else if (!encrypt_key->key_len) {
 894                 /* Copy the required key as the current key */
 895                 wep_key = &priv->wep_key[index];
 896                 if (!wep_key->key_length) {
 897                         mwifiex_dbg(adapter, ERROR,
 898                                     "key not set, so cannot enable it\n");
 899                         return -1;
 900                 }
 901
 902                 if (adapter->key_api_major_ver == KEY_API_VER_MAJOR_V2) {
 903                         memcpy(encrypt_key->key_material,
 904                                wep_key->key_material, wep_key->key_length);
 905                         encrypt_key->key_len = wep_key->key_length;
 906                 }
 907
 908                 priv->wep_key_curr_index = (u16) index;
 909                 priv->sec_info.wep_enabled = 1;
 910         } else {
 911                 wep_key = &priv->wep_key[index];
 912                 memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
 913                 /* Copy the key in the driver */
 914                 memcpy(wep_key->key_material,
 915                        encrypt_key->key_material,
 916                        encrypt_key->key_len);
 917                 wep_key->key_index = index;
 918                 wep_key->key_length = encrypt_key->key_len;
 919                 priv->sec_info.wep_enabled = 1;
 920         }
 921         if (wep_key->key_length) {
 922                 void *enc_key;
 923
 924                 if (encrypt_key->key_disable) {
 925                         memset(&priv->wep_key[index], 0,
 926                                sizeof(struct mwifiex_wep_key));
 927                         goto done;
 928                 }
 929
 930                 if (adapter->key_api_major_ver == KEY_API_VER_MAJOR_V2)
 931                         enc_key = encrypt_key;
 932                 else
 933                         enc_key = NULL;
 934
 935                 /* Send request to firmware */
 936                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
 937                                        HostCmd_ACT_GEN_SET, 0, enc_key, false);
 938                 if (ret)
 939                         return ret;
 940         }
 941
 942 done:
 943         if (priv->sec_info.wep_enabled)
 944                 priv->curr_pkt_filter |= HostCmd_ACT_MAC_WEP_ENABLE;
 945         else
 946                 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_WEP_ENABLE;
 947
 948         ret = mwifiex_send_cmd(priv, HostCmd_CMD_MAC_CONTROL,
 949                                HostCmd_ACT_GEN_SET, 0,
 950                                &priv->curr_pkt_filter, true);
 951
 952         return ret;
 953 }
 954
 955 /*
 956  * IOCTL request handler to set WPA key.
 957  *
 958  * This function prepares the correct firmware command and
 959  * issues it, after validation checks.
 960  *
 961  * Current driver only supports key length of up to 32 bytes.
 962  *
 963  * This function can also be used to disable a currently set key.
 964  */
 965 static int mwifiex_sec_ioctl_set_wpa_key(struct mwifiex_private *priv,
 966                               struct mwifiex_ds_encrypt_key *encrypt_key)
 967 {
 968         int ret;
 969         u8 remove_key = false;
 970         struct host_cmd_ds_802_11_key_material *ibss_key;
 971
 972         /* Current driver only supports key length of up to 32 bytes */
 973         if (encrypt_key->key_len > WLAN_MAX_KEY_LEN) {
 974                 mwifiex_dbg(priv->adapter, ERROR,
 975                             "key length too long\n");
 976                 return -1;
 977         }
 978
 979         if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
 980                 /*
 981                  * IBSS/WPA-None uses only one key (Group) for both receiving
 982                  * and sending unicast and multicast packets.
 983                  */
 984                 /* Send the key as PTK to firmware */
 985                 encrypt_key->key_index = MWIFIEX_KEY_INDEX_UNICAST;
 986                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
 987                                        HostCmd_ACT_GEN_SET,
 988                                        KEY_INFO_ENABLED, encrypt_key, false);
 989                 if (ret)
 990                         return ret;
 991
 992                 ibss_key = &priv->aes_key;
 993                 memset(ibss_key, 0,
 994                        sizeof(struct host_cmd_ds_802_11_key_material));
 995                 /* Copy the key in the driver */
 996                 memcpy(ibss_key->key_param_set.key, encrypt_key->key_material,
 997                        encrypt_key->key_len);
 998                 memcpy(&ibss_key->key_param_set.key_len, &encrypt_key->key_len,
 999                        sizeof(ibss_key->key_param_set.key_len));
1000                 ibss_key->key_param_set.key_type_id
1001                         = cpu_to_le16(KEY_TYPE_ID_TKIP);
1002                 ibss_key->key_param_set.key_info = cpu_to_le16(KEY_ENABLED);
1003
1004                 /* Send the key as GTK to firmware */
1005                 encrypt_key->key_index = ~MWIFIEX_KEY_INDEX_UNICAST;
1006         }
1007
1008         if (!encrypt_key->key_index)
1009                 encrypt_key->key_index = MWIFIEX_KEY_INDEX_UNICAST;
1010
1011         if (remove_key)
1012                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
1013                                        HostCmd_ACT_GEN_SET,
1014                                        !KEY_INFO_ENABLED, encrypt_key, true);
1015         else
1016                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
1017                                        HostCmd_ACT_GEN_SET,
1018                                        KEY_INFO_ENABLED, encrypt_key, true);
1019
1020         return ret;
1021 }
1022
1023 /*
1024  * IOCTL request handler to set/get network keys.
1025  *
1026  * This is a generic key handling function which supports WEP, WPA
1027  * and WAPI.
1028  */
1029 static int
1030 mwifiex_sec_ioctl_encrypt_key(struct mwifiex_private *priv,
1031                               struct mwifiex_ds_encrypt_key *encrypt_key)
1032 {
1033         int status;
1034
1035         if (encrypt_key->is_wapi_key)
1036                 status = mwifiex_sec_ioctl_set_wapi_key(priv, encrypt_key);
1037         else if (encrypt_key->key_len > WLAN_KEY_LEN_WEP104)
1038                 status = mwifiex_sec_ioctl_set_wpa_key(priv, encrypt_key);
1039         else
1040                 status = mwifiex_sec_ioctl_set_wep_key(priv, encrypt_key);
1041         return status;
1042 }
1043
1044 /*
1045  * This function returns the driver version.
1046  */
1047 int
1048 mwifiex_drv_get_driver_version(struct mwifiex_adapter *adapter, char *version,
1049                                int max_len)
1050 {
1051         union {
1052                 __le32 l;
1053                 u8 c[4];
1054         } ver;
1055         char fw_ver[32];
1056
1057         ver.l = cpu_to_le32(adapter->fw_release_number);
1058         sprintf(fw_ver, "%u.%u.%u.p%u", ver.c[2], ver.c[1], ver.c[0], ver.c[3]);
1059
1060         snprintf(version, max_len, driver_version, fw_ver);
1061
1062         mwifiex_dbg(adapter, MSG, "info: MWIFIEX VERSION: %s\n", version);
1063
1064         return 0;
1065 }
1066
1067 /*
1068  * Sends IOCTL request to set encoding parameters.
1069  *
1070  * This function allocates the IOCTL request buffer, fills it
1071  * with requisite parameters and calls the IOCTL handler.
1072  */
1073 int mwifiex_set_encode(struct mwifiex_private *priv, struct key_params *kp,
1074                        const u8 *key, int key_len, u8 key_index,
1075                        const u8 *mac_addr, int disable)
1076 {
1077         struct mwifiex_ds_encrypt_key encrypt_key;
1078
1079         memset(&encrypt_key, 0, sizeof(struct mwifiex_ds_encrypt_key));
1080         encrypt_key.key_len = key_len;
1081         encrypt_key.key_index = key_index;
1082
1083         if (kp && kp->cipher == WLAN_CIPHER_SUITE_AES_CMAC)
1084                 encrypt_key.is_igtk_key = true;
1085
1086         if (!disable) {
1087                 if (key_len)
1088                         memcpy(encrypt_key.key_material, key, key_len);
1089                 else
1090                         encrypt_key.is_current_wep_key = true;
1091
1092                 if (mac_addr)
1093                         memcpy(encrypt_key.mac_addr, mac_addr, ETH_ALEN);
1094                 if (kp && kp->seq && kp->seq_len) {
1095                         memcpy(encrypt_key.pn, kp->seq, kp->seq_len);
1096                         encrypt_key.pn_len = kp->seq_len;
1097                         encrypt_key.is_rx_seq_valid = true;
1098                 }
1099         } else {
1100                 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP)
1101                         return 0;
1102                 encrypt_key.key_disable = true;
1103                 if (mac_addr)
1104                         memcpy(encrypt_key.mac_addr, mac_addr, ETH_ALEN);
1105         }
1106
1107         return mwifiex_sec_ioctl_encrypt_key(priv, &encrypt_key);
1108 }
1109
1110 /*
1111  * Sends IOCTL request to get extended version.
1112  *
1113  * This function allocates the IOCTL request buffer, fills it
1114  * with requisite parameters and calls the IOCTL handler.
1115  */
1116 int
1117 mwifiex_get_ver_ext(struct mwifiex_private *priv)
1118 {
1119         struct mwifiex_ver_ext ver_ext;
1120
1121         memset(&ver_ext, 0, sizeof(struct host_cmd_ds_version_ext));
1122         if (mwifiex_send_cmd(priv, HostCmd_CMD_VERSION_EXT,
1123                              HostCmd_ACT_GEN_GET, 0, &ver_ext, true))
1124                 return -1;
1125
1126         return 0;
1127 }
1128
1129 int
1130 mwifiex_remain_on_chan_cfg(struct mwifiex_private *priv, u16 action,
1131                            struct ieee80211_channel *chan,
1132                            unsigned int duration)
1133 {
1134         struct host_cmd_ds_remain_on_chan roc_cfg;
1135         u8 sc;
1136
1137         memset(&roc_cfg, 0, sizeof(roc_cfg));
1138         roc_cfg.action = cpu_to_le16(action);
1139         if (action == HostCmd_ACT_GEN_SET) {
1140                 roc_cfg.band_cfg = chan->band;
1141                 sc = mwifiex_chan_type_to_sec_chan_offset(NL80211_CHAN_NO_HT);
1142                 roc_cfg.band_cfg |= (sc << 2);
1143
1144                 roc_cfg.channel =
1145                         ieee80211_frequency_to_channel(chan->center_freq);
1146                 roc_cfg.duration = cpu_to_le32(duration);
1147         }
1148         if (mwifiex_send_cmd(priv, HostCmd_CMD_REMAIN_ON_CHAN,
1149                              action, 0, &roc_cfg, true)) {
1150                 mwifiex_dbg(priv->adapter, ERROR,
1151                             "failed to remain on channel\n");
1152                 return -1;
1153         }
1154
1155         return roc_cfg.status;
1156 }
1157
1158 /*
1159  * Sends IOCTL request to get statistics information.
1160  *
1161  * This function allocates the IOCTL request buffer, fills it
1162  * with requisite parameters and calls the IOCTL handler.
1163  */
1164 int
1165 mwifiex_get_stats_info(struct mwifiex_private *priv,
1166                        struct mwifiex_ds_get_stats *log)
1167 {
1168         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_GET_LOG,
1169                                 HostCmd_ACT_GEN_GET, 0, log, true);
1170 }
1171
1172 /*
1173  * IOCTL request handler to read/write register.
1174  *
1175  * This function prepares the correct firmware command and
1176  * issues it.
1177  *
1178  * Access to the following registers are supported -
1179  *      - MAC
1180  *      - BBP
1181  *      - RF
1182  *      - PMIC
1183  *      - CAU
1184  */
1185 static int mwifiex_reg_mem_ioctl_reg_rw(struct mwifiex_private *priv,
1186                                         struct mwifiex_ds_reg_rw *reg_rw,
1187                                         u16 action)
1188 {
1189         u16 cmd_no;
1190
1191         switch (le32_to_cpu(reg_rw->type)) {
1192         case MWIFIEX_REG_MAC:
1193                 cmd_no = HostCmd_CMD_MAC_REG_ACCESS;
1194                 break;
1195         case MWIFIEX_REG_BBP:
1196                 cmd_no = HostCmd_CMD_BBP_REG_ACCESS;
1197                 break;
1198         case MWIFIEX_REG_RF:
1199                 cmd_no = HostCmd_CMD_RF_REG_ACCESS;
1200                 break;
1201         case MWIFIEX_REG_PMIC:
1202                 cmd_no = HostCmd_CMD_PMIC_REG_ACCESS;
1203                 break;
1204         case MWIFIEX_REG_CAU:
1205                 cmd_no = HostCmd_CMD_CAU_REG_ACCESS;
1206                 break;
1207         default:
1208                 return -1;
1209         }
1210
1211         return mwifiex_send_cmd(priv, cmd_no, action, 0, reg_rw, true);
1212 }
1213
1214 /*
1215  * Sends IOCTL request to write to a register.
1216  *
1217  * This function allocates the IOCTL request buffer, fills it
1218  * with requisite parameters and calls the IOCTL handler.
1219  */
1220 int
1221 mwifiex_reg_write(struct mwifiex_private *priv, u32 reg_type,
1222                   u32 reg_offset, u32 reg_value)
1223 {
1224         struct mwifiex_ds_reg_rw reg_rw;
1225
1226         reg_rw.type = cpu_to_le32(reg_type);
1227         reg_rw.offset = cpu_to_le32(reg_offset);
1228         reg_rw.value = cpu_to_le32(reg_value);
1229
1230         return mwifiex_reg_mem_ioctl_reg_rw(priv, &reg_rw, HostCmd_ACT_GEN_SET);
1231 }
1232
1233 /*
1234  * Sends IOCTL request to read from a register.
1235  *
1236  * This function allocates the IOCTL request buffer, fills it
1237  * with requisite parameters and calls the IOCTL handler.
1238  */
1239 int
1240 mwifiex_reg_read(struct mwifiex_private *priv, u32 reg_type,
1241                  u32 reg_offset, u32 *value)
1242 {
1243         int ret;
1244         struct mwifiex_ds_reg_rw reg_rw;
1245
1246         reg_rw.type = cpu_to_le32(reg_type);
1247         reg_rw.offset = cpu_to_le32(reg_offset);
1248         ret = mwifiex_reg_mem_ioctl_reg_rw(priv, &reg_rw, HostCmd_ACT_GEN_GET);
1249
1250         if (ret)
1251                 goto done;
1252
1253         *value = le32_to_cpu(reg_rw.value);
1254
1255 done:
1256         return ret;
1257 }
1258
1259 /*
1260  * Sends IOCTL request to read from EEPROM.
1261  *
1262  * This function allocates the IOCTL request buffer, fills it
1263  * with requisite parameters and calls the IOCTL handler.
1264  */
1265 int
1266 mwifiex_eeprom_read(struct mwifiex_private *priv, u16 offset, u16 bytes,
1267                     u8 *value)
1268 {
1269         int ret;
1270         struct mwifiex_ds_read_eeprom rd_eeprom;
1271
1272         rd_eeprom.offset = cpu_to_le16((u16) offset);
1273         rd_eeprom.byte_count = cpu_to_le16((u16) bytes);
1274
1275         /* Send request to firmware */
1276         ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_EEPROM_ACCESS,
1277                                HostCmd_ACT_GEN_GET, 0, &rd_eeprom, true);
1278
1279         if (!ret)
1280                 memcpy(value, rd_eeprom.value, MAX_EEPROM_DATA);
1281         return ret;
1282 }
1283
1284 /*
1285  * This function sets a generic IE. In addition to generic IE, it can
1286  * also handle WPA, WPA2 and WAPI IEs.
1287  */
1288 static int
1289 mwifiex_set_gen_ie_helper(struct mwifiex_private *priv, u8 *ie_data_ptr,
1290                           u16 ie_len)
1291 {
1292         int ret = 0;
1293         struct ieee_types_vendor_header *pvendor_ie;
1294         const u8 wpa_oui[] = { 0x00, 0x50, 0xf2, 0x01 };
1295         const u8 wps_oui[] = { 0x00, 0x50, 0xf2, 0x04 };
1296         u16 unparsed_len = ie_len;
1297         int find_wpa_ie = 0;
1298
1299         /* If the passed length is zero, reset the buffer */
1300         if (!ie_len) {
1301                 priv->gen_ie_buf_len = 0;
1302                 priv->wps.session_enable = false;
1303
1304                 return 0;
1305         } else if (!ie_data_ptr) {
1306                 return -1;
1307         }
1308         pvendor_ie = (struct ieee_types_vendor_header *) ie_data_ptr;
1309
1310         while (pvendor_ie) {
1311                 if (pvendor_ie->element_id == WLAN_EID_VENDOR_SPECIFIC) {
1312                         /* Test to see if it is a WPA IE, if not, then it is a
1313                          * gen IE
1314                          */
1315                         if (!memcmp(pvendor_ie->oui, wpa_oui,
1316                                     sizeof(wpa_oui))) {
1317                                 find_wpa_ie = 1;
1318                                 break;
1319                         }
1320
1321                         /* Test to see if it is a WPS IE, if so, enable
1322                          * wps session flag
1323                          */
1324                         if (!memcmp(pvendor_ie->oui, wps_oui,
1325                                     sizeof(wps_oui))) {
1326                                 priv->wps.session_enable = true;
1327                                 mwifiex_dbg(priv->adapter, MSG,
1328                                             "info: WPS Session Enabled.\n");
1329                                 ret = mwifiex_set_wps_ie(priv,
1330                                                          (u8 *)pvendor_ie,
1331                                                          unparsed_len);
1332                         }
1333                 }
1334
1335                 if (pvendor_ie->element_id == WLAN_EID_RSN) {
1336                         find_wpa_ie = 1;
1337                         break;
1338                 }
1339
1340                 if (pvendor_ie->element_id == WLAN_EID_BSS_AC_ACCESS_DELAY) {
1341                 /* IE is a WAPI IE so call set_wapi function */
1342                         ret = mwifiex_set_wapi_ie(priv, (u8 *)pvendor_ie,
1343                                                   unparsed_len);
1344                         return ret;
1345                 }
1346
1347                 unparsed_len -= (pvendor_ie->len +
1348                                  sizeof(struct ieee_types_header));
1349
1350                 if (unparsed_len <= sizeof(struct ieee_types_header))
1351                         pvendor_ie = NULL;
1352                 else
1353                         pvendor_ie = (struct ieee_types_vendor_header *)
1354                                 (((u8 *)pvendor_ie) + pvendor_ie->len +
1355                                  sizeof(struct ieee_types_header));
1356         }
1357
1358         if (find_wpa_ie) {
1359                 /* IE is a WPA/WPA2 IE so call set_wpa function */
1360                 ret = mwifiex_set_wpa_ie_helper(priv, (u8 *)pvendor_ie,
1361                                                 unparsed_len);
1362                 priv->wps.session_enable = false;
1363                 return ret;
1364         }
1365
1366         /*
1367          * Verify that the passed length is not larger than the
1368          * available space remaining in the buffer
1369          */
1370         if (ie_len < (sizeof(priv->gen_ie_buf) - priv->gen_ie_buf_len)) {
1371
1372                 /* Append the passed data to the end of the
1373                    genIeBuffer */
1374                 memcpy(priv->gen_ie_buf + priv->gen_ie_buf_len, ie_data_ptr,
1375                        ie_len);
1376                 /* Increment the stored buffer length by the
1377                    size passed */
1378                 priv->gen_ie_buf_len += ie_len;
1379         } else {
1380                 /* Passed data does not fit in the remaining
1381                    buffer space */
1382                 ret = -1;
1383         }
1384
1385         /* Return 0, or -1 for error case */
1386         return ret;
1387 }
1388
1389 /*
1390  * IOCTL request handler to set/get generic IE.
1391  *
1392  * In addition to various generic IEs, this function can also be
1393  * used to set the ARP filter.
1394  */
1395 static int mwifiex_misc_ioctl_gen_ie(struct mwifiex_private *priv,
1396                                      struct mwifiex_ds_misc_gen_ie *gen_ie,
1397                                      u16 action)
1398 {
1399         struct mwifiex_adapter *adapter = priv->adapter;
1400
1401         switch (gen_ie->type) {
1402         case MWIFIEX_IE_TYPE_GEN_IE:
1403                 if (action == HostCmd_ACT_GEN_GET) {
1404                         gen_ie->len = priv->wpa_ie_len;
1405                         memcpy(gen_ie->ie_data, priv->wpa_ie, gen_ie->len);
1406                 } else {
1407                         mwifiex_set_gen_ie_helper(priv, gen_ie->ie_data,
1408                                                   (u16) gen_ie->len);
1409                 }
1410                 break;
1411         case MWIFIEX_IE_TYPE_ARP_FILTER:
1412                 memset(adapter->arp_filter, 0, sizeof(adapter->arp_filter));
1413                 if (gen_ie->len > ARP_FILTER_MAX_BUF_SIZE) {
1414                         adapter->arp_filter_size = 0;
1415                         mwifiex_dbg(adapter, ERROR,
1416                                     "invalid ARP filter size\n");
1417                         return -1;
1418                 } else {
1419                         memcpy(adapter->arp_filter, gen_ie->ie_data,
1420                                gen_ie->len);
1421                         adapter->arp_filter_size = gen_ie->len;
1422                 }
1423                 break;
1424         default:
1425                 mwifiex_dbg(adapter, ERROR, "invalid IE type\n");
1426                 return -1;
1427         }
1428         return 0;
1429 }
1430
1431 /*
1432  * Sends IOCTL request to set a generic IE.
1433  *
1434  * This function allocates the IOCTL request buffer, fills it
1435  * with requisite parameters and calls the IOCTL handler.
1436  */
1437 int
1438 mwifiex_set_gen_ie(struct mwifiex_private *priv, const u8 *ie, int ie_len)
1439 {
1440         struct mwifiex_ds_misc_gen_ie gen_ie;
1441
1442         if (ie_len > IEEE_MAX_IE_SIZE)
1443                 return -EFAULT;
1444
1445         gen_ie.type = MWIFIEX_IE_TYPE_GEN_IE;
1446         gen_ie.len = ie_len;
1447         memcpy(gen_ie.ie_data, ie, ie_len);
1448         if (mwifiex_misc_ioctl_gen_ie(priv, &gen_ie, HostCmd_ACT_GEN_SET))
1449                 return -EFAULT;
1450
1451         return 0;
1452 }