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
 233         if (country_ie_len >
 234             (IEEE80211_COUNTRY_STRING_LEN + MWIFIEX_MAX_TRIPLET_802_11D)) {
 235                 rcu_read_unlock();
 236                 mwifiex_dbg(priv->adapter, ERROR,
 237                             "11D: country_ie_len overflow!, deauth AP\n");
 238                 return -EINVAL;
 239         }
 240
 241         memcpy(priv->adapter->country_code, &country_ie[2], 2);
 242
 243         domain_info->country_code[0] = country_ie[2];
 244         domain_info->country_code[1] = country_ie[3];
 245         domain_info->country_code[2] = ' ';
 246
 247         country_ie_len -= IEEE80211_COUNTRY_STRING_LEN;
 248
 249         domain_info->no_of_triplet =
 250                 country_ie_len / sizeof(struct ieee80211_country_ie_triplet);
 251
 252         memcpy((u8 *)domain_info->triplet,
 253                &country_ie[2] + IEEE80211_COUNTRY_STRING_LEN, country_ie_len);
 254
 255         rcu_read_unlock();
 256
 257         if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
 258                              HostCmd_ACT_GEN_SET, 0, NULL, false)) {
 259                 mwifiex_dbg(priv->adapter, ERROR,
 260                             "11D: setting domain info in FW fail\n");
 261                 return -1;
 262         }
 263
 264         mwifiex_dnld_txpwr_table(priv);
 265
 266         return 0;
 267 }
 268
 269 /*
 270  * In Ad-Hoc mode, the IBSS is created if not found in scan list.
 271  * In both Ad-Hoc and infra mode, an deauthentication is performed
 272  * first.
 273  */
 274 int mwifiex_bss_start(struct mwifiex_private *priv, struct cfg80211_bss *bss,
 275                       struct cfg80211_ssid *req_ssid)
 276 {
 277         int ret;
 278         struct mwifiex_adapter *adapter = priv->adapter;
 279         struct mwifiex_bssdescriptor *bss_desc = NULL;
 280
 281         priv->scan_block = false;
 282
 283         if (bss) {
 284                 if (adapter->region_code == 0x00 &&
 285                     mwifiex_process_country_ie(priv, bss))
 286                         return -EINVAL;
 287
 288                 /* Allocate and fill new bss descriptor */
 289                 bss_desc = kzalloc(sizeof(struct mwifiex_bssdescriptor),
 290                                    GFP_KERNEL);
 291                 if (!bss_desc)
 292                         return -ENOMEM;
 293
 294                 ret = mwifiex_fill_new_bss_desc(priv, bss, bss_desc);
 295                 if (ret)
 296                         goto done;
 297         }
 298
 299         if (priv->bss_mode == NL80211_IFTYPE_STATION ||
 300             priv->bss_mode == NL80211_IFTYPE_P2P_CLIENT) {
 301                 u8 config_bands;
 302
 303                 if (!bss_desc)
 304                         return -1;
 305
 306                 if (mwifiex_band_to_radio_type(bss_desc->bss_band) ==
 307                                                 HostCmd_SCAN_RADIO_TYPE_BG) {
 308                         config_bands = BAND_B | BAND_G | BAND_GN;
 309                 } else {
 310                         config_bands = BAND_A | BAND_AN;
 311                         if (adapter->fw_bands & BAND_AAC)
 312                                 config_bands |= BAND_AAC;
 313                 }
 314
 315                 if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands))
 316                         adapter->config_bands = config_bands;
 317
 318                 ret = mwifiex_check_network_compatibility(priv, bss_desc);
 319                 if (ret)
 320                         goto done;
 321
 322                 if (mwifiex_11h_get_csa_closed_channel(priv) ==
 323                                                         (u8)bss_desc->channel) {
 324                         mwifiex_dbg(adapter, ERROR,
 325                                     "Attempt to reconnect on csa closed chan(%d)\n",
 326                                     bss_desc->channel);
 327                         ret = -1;
 328                         goto done;
 329                 }
 330
 331                 mwifiex_dbg(adapter, INFO,
 332                             "info: SSID found in scan list ...\t"
 333                             "associating...\n");
 334
 335                 mwifiex_stop_net_dev_queue(priv->netdev, adapter);
 336                 if (netif_carrier_ok(priv->netdev))
 337                         netif_carrier_off(priv->netdev);
 338
 339                 /* Clear any past association response stored for
 340                  * application retrieval */
 341                 priv->assoc_rsp_size = 0;
 342                 ret = mwifiex_associate(priv, bss_desc);
 343
 344                 /* If auth type is auto and association fails using open mode,
 345                  * try to connect using shared mode */
 346                 if (ret == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG &&
 347                     priv->sec_info.is_authtype_auto &&
 348                     priv->sec_info.wep_enabled) {
 349                         priv->sec_info.authentication_mode =
 350                                                 NL80211_AUTHTYPE_SHARED_KEY;
 351                         ret = mwifiex_associate(priv, bss_desc);
 352                 }
 353
 354                 if (bss)
 355                         cfg80211_put_bss(priv->adapter->wiphy, bss);
 356         } else {
 357                 /* Adhoc mode */
 358                 /* If the requested SSID matches current SSID, return */
 359                 if (bss_desc && bss_desc->ssid.ssid_len &&
 360                     (!mwifiex_ssid_cmp(&priv->curr_bss_params.bss_descriptor.
 361                                        ssid, &bss_desc->ssid))) {
 362                         ret = 0;
 363                         goto done;
 364                 }
 365
 366                 priv->adhoc_is_link_sensed = false;
 367
 368                 ret = mwifiex_check_network_compatibility(priv, bss_desc);
 369
 370                 mwifiex_stop_net_dev_queue(priv->netdev, adapter);
 371                 if (netif_carrier_ok(priv->netdev))
 372                         netif_carrier_off(priv->netdev);
 373
 374                 if (!ret) {
 375                         mwifiex_dbg(adapter, INFO,
 376                                     "info: network found in scan\t"
 377                                     " list. Joining...\n");
 378                         ret = mwifiex_adhoc_join(priv, bss_desc);
 379                         if (bss)
 380                                 cfg80211_put_bss(priv->adapter->wiphy, bss);
 381                 } else {
 382                         mwifiex_dbg(adapter, INFO,
 383                                     "info: Network not found in\t"
 384                                     "the list, creating adhoc with ssid = %s\n",
 385                                     req_ssid->ssid);
 386                         ret = mwifiex_adhoc_start(priv, req_ssid);
 387                 }
 388         }
 389
 390 done:
 391         /* beacon_ie buffer was allocated in function
 392          * mwifiex_fill_new_bss_desc(). Free it now.
 393          */
 394         if (bss_desc)
 395                 kfree(bss_desc->beacon_buf);
 396         kfree(bss_desc);
 397
 398         if (ret < 0)
 399                 priv->attempted_bss_desc = NULL;
 400
 401         return ret;
 402 }
 403
 404 /*
 405  * IOCTL request handler to set host sleep configuration.
 406  *
 407  * This function prepares the correct firmware command and
 408  * issues it.
 409  */
 410 int mwifiex_set_hs_params(struct mwifiex_private *priv, u16 action,
 411                           int cmd_type, struct mwifiex_ds_hs_cfg *hs_cfg)
 412
 413 {
 414         struct mwifiex_adapter *adapter = priv->adapter;
 415         int status = 0;
 416         u32 prev_cond = 0;
 417
 418         if (!hs_cfg)
 419                 return -ENOMEM;
 420
 421         switch (action) {
 422         case HostCmd_ACT_GEN_SET:
 423                 if (adapter->pps_uapsd_mode) {
 424                         mwifiex_dbg(adapter, INFO,
 425                                     "info: Host Sleep IOCTL\t"
 426                                     "is blocked in UAPSD/PPS mode\n");
 427                         status = -1;
 428                         break;
 429                 }
 430                 if (hs_cfg->is_invoke_hostcmd) {
 431                         if (hs_cfg->conditions == HS_CFG_CANCEL) {
 432                                 if (!test_bit(MWIFIEX_IS_HS_CONFIGURED,
 433                                               &adapter->work_flags))
 434                                         /* Already cancelled */
 435                                         break;
 436                                 /* Save previous condition */
 437                                 prev_cond = le32_to_cpu(adapter->hs_cfg
 438                                                         .conditions);
 439                                 adapter->hs_cfg.conditions =
 440                                                 cpu_to_le32(hs_cfg->conditions);
 441                         } else if (hs_cfg->conditions) {
 442                                 adapter->hs_cfg.conditions =
 443                                                 cpu_to_le32(hs_cfg->conditions);
 444                                 adapter->hs_cfg.gpio = (u8)hs_cfg->gpio;
 445                                 if (hs_cfg->gap)
 446                                         adapter->hs_cfg.gap = (u8)hs_cfg->gap;
 447                         } else if (adapter->hs_cfg.conditions ==
 448                                    cpu_to_le32(HS_CFG_CANCEL)) {
 449                                 /* Return failure if no parameters for HS
 450                                    enable */
 451                                 status = -1;
 452                                 break;
 453                         }
 454
 455                         status = mwifiex_send_cmd(priv,
 456                                                   HostCmd_CMD_802_11_HS_CFG_ENH,
 457                                                   HostCmd_ACT_GEN_SET, 0,
 458                                                   &adapter->hs_cfg,
 459                                                   cmd_type == MWIFIEX_SYNC_CMD);
 460
 461                         if (hs_cfg->conditions == HS_CFG_CANCEL)
 462                                 /* Restore previous condition */
 463                                 adapter->hs_cfg.conditions =
 464                                                 cpu_to_le32(prev_cond);
 465                 } else {
 466                         adapter->hs_cfg.conditions =
 467                                                 cpu_to_le32(hs_cfg->conditions);
 468                         adapter->hs_cfg.gpio = (u8)hs_cfg->gpio;
 469                         adapter->hs_cfg.gap = (u8)hs_cfg->gap;
 470                 }
 471                 break;
 472         case HostCmd_ACT_GEN_GET:
 473                 hs_cfg->conditions = le32_to_cpu(adapter->hs_cfg.conditions);
 474                 hs_cfg->gpio = adapter->hs_cfg.gpio;
 475                 hs_cfg->gap = adapter->hs_cfg.gap;
 476                 break;
 477         default:
 478                 status = -1;
 479                 break;
 480         }
 481
 482         return status;
 483 }
 484
 485 /*
 486  * Sends IOCTL request to cancel the existing Host Sleep configuration.
 487  *
 488  * This function allocates the IOCTL request buffer, fills it
 489  * with requisite parameters and calls the IOCTL handler.
 490  */
 491 int mwifiex_cancel_hs(struct mwifiex_private *priv, int cmd_type)
 492 {
 493         struct mwifiex_ds_hs_cfg hscfg;
 494
 495         hscfg.conditions = HS_CFG_CANCEL;
 496         hscfg.is_invoke_hostcmd = true;
 497
 498         return mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_SET,
 499                                     cmd_type, &hscfg);
 500 }
 501 EXPORT_SYMBOL_GPL(mwifiex_cancel_hs);
 502
 503 /*
 504  * Sends IOCTL request to cancel the existing Host Sleep configuration.
 505  *
 506  * This function allocates the IOCTL request buffer, fills it
 507  * with requisite parameters and calls the IOCTL handler.
 508  */
 509 int mwifiex_enable_hs(struct mwifiex_adapter *adapter)
 510 {
 511         struct mwifiex_ds_hs_cfg hscfg;
 512         struct mwifiex_private *priv;
 513         int i;
 514
 515         if (disconnect_on_suspend) {
 516                 for (i = 0; i < adapter->priv_num; i++) {
 517                         priv = adapter->priv[i];
 518                         if (priv)
 519                                 mwifiex_deauthenticate(priv, NULL);
 520                 }
 521         }
 522
 523         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
 524
 525         if (priv && priv->sched_scanning) {
 526 #ifdef CONFIG_PM
 527                 if (priv->wdev.wiphy->wowlan_config &&
 528                     !priv->wdev.wiphy->wowlan_config->nd_config) {
 529 #endif
 530                         mwifiex_dbg(adapter, CMD, "aborting bgscan!\n");
 531                         mwifiex_stop_bg_scan(priv);
 532                         cfg80211_sched_scan_stopped(priv->wdev.wiphy, 0);
 533 #ifdef CONFIG_PM
 534                 }
 535 #endif
 536         }
 537
 538         if (adapter->hs_activated) {
 539                 mwifiex_dbg(adapter, CMD,
 540                             "cmd: HS Already activated\n");
 541                 return true;
 542         }
 543
 544         adapter->hs_activate_wait_q_woken = false;
 545
 546         memset(&hscfg, 0, sizeof(hscfg));
 547         hscfg.is_invoke_hostcmd = true;
 548
 549         set_bit(MWIFIEX_IS_HS_ENABLING, &adapter->work_flags);
 550         mwifiex_cancel_all_pending_cmd(adapter);
 551
 552         if (mwifiex_set_hs_params(mwifiex_get_priv(adapter,
 553                                                    MWIFIEX_BSS_ROLE_STA),
 554                                   HostCmd_ACT_GEN_SET, MWIFIEX_SYNC_CMD,
 555                                   &hscfg)) {
 556                 mwifiex_dbg(adapter, ERROR,
 557                             "IOCTL request HS enable failed\n");
 558                 return false;
 559         }
 560
 561         if (wait_event_interruptible_timeout(adapter->hs_activate_wait_q,
 562                                              adapter->hs_activate_wait_q_woken,
 563                                              (10 * HZ)) <= 0) {
 564                 mwifiex_dbg(adapter, ERROR,
 565                             "hs_activate_wait_q terminated\n");
 566                 return false;
 567         }
 568
 569         return true;
 570 }
 571 EXPORT_SYMBOL_GPL(mwifiex_enable_hs);
 572
 573 /*
 574  * IOCTL request handler to get BSS information.
 575  *
 576  * This function collates the information from different driver structures
 577  * to send to the user.
 578  */
 579 int mwifiex_get_bss_info(struct mwifiex_private *priv,
 580                          struct mwifiex_bss_info *info)
 581 {
 582         struct mwifiex_adapter *adapter = priv->adapter;
 583         struct mwifiex_bssdescriptor *bss_desc;
 584
 585         if (!info)
 586                 return -1;
 587
 588         bss_desc = &priv->curr_bss_params.bss_descriptor;
 589
 590         info->bss_mode = priv->bss_mode;
 591
 592         memcpy(&info->ssid, &bss_desc->ssid, sizeof(struct cfg80211_ssid));
 593
 594         memcpy(&info->bssid, &bss_desc->mac_address, ETH_ALEN);
 595
 596         info->bss_chan = bss_desc->channel;
 597
 598         memcpy(info->country_code, adapter->country_code,
 599                IEEE80211_COUNTRY_STRING_LEN);
 600
 601         info->media_connected = priv->media_connected;
 602
 603         info->max_power_level = priv->max_tx_power_level;
 604         info->min_power_level = priv->min_tx_power_level;
 605
 606         info->adhoc_state = priv->adhoc_state;
 607
 608         info->bcn_nf_last = priv->bcn_nf_last;
 609
 610         if (priv->sec_info.wep_enabled)
 611                 info->wep_status = true;
 612         else
 613                 info->wep_status = false;
 614
 615         info->is_hs_configured = test_bit(MWIFIEX_IS_HS_CONFIGURED,
 616                                           &adapter->work_flags);
 617         info->is_deep_sleep = adapter->is_deep_sleep;
 618
 619         return 0;
 620 }
 621
 622 /*
 623  * The function disables auto deep sleep mode.
 624  */
 625 int mwifiex_disable_auto_ds(struct mwifiex_private *priv)
 626 {
 627         struct mwifiex_ds_auto_ds auto_ds = {
 628                 .auto_ds = DEEP_SLEEP_OFF,
 629         };
 630
 631         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_PS_MODE_ENH,
 632                                 DIS_AUTO_PS, BITMAP_AUTO_DS, &auto_ds, true);
 633 }
 634 EXPORT_SYMBOL_GPL(mwifiex_disable_auto_ds);
 635
 636 /*
 637  * Sends IOCTL request to get the data rate.
 638  *
 639  * This function allocates the IOCTL request buffer, fills it
 640  * with requisite parameters and calls the IOCTL handler.
 641  */
 642 int mwifiex_drv_get_data_rate(struct mwifiex_private *priv, u32 *rate)
 643 {
 644         int ret;
 645
 646         ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_TX_RATE_QUERY,
 647                                HostCmd_ACT_GEN_GET, 0, NULL, true);
 648
 649         if (!ret) {
 650                 if (priv->is_data_rate_auto)
 651                         *rate = mwifiex_index_to_data_rate(priv, priv->tx_rate,
 652                                                            priv->tx_htinfo);
 653                 else
 654                         *rate = priv->data_rate;
 655         }
 656
 657         return ret;
 658 }
 659
 660 /*
 661  * IOCTL request handler to set tx power configuration.
 662  *
 663  * This function prepares the correct firmware command and
 664  * issues it.
 665  *
 666  * For non-auto power mode, all the following power groups are set -
 667  *      - Modulation class HR/DSSS
 668  *      - Modulation class OFDM
 669  *      - Modulation class HTBW20
 670  *      - Modulation class HTBW40
 671  */
 672 int mwifiex_set_tx_power(struct mwifiex_private *priv,
 673                          struct mwifiex_power_cfg *power_cfg)
 674 {
 675         int ret;
 676         struct host_cmd_ds_txpwr_cfg *txp_cfg;
 677         struct mwifiex_types_power_group *pg_tlv;
 678         struct mwifiex_power_group *pg;
 679         u8 *buf;
 680         u16 dbm = 0;
 681
 682         if (!power_cfg->is_power_auto) {
 683                 dbm = (u16) power_cfg->power_level;
 684                 if ((dbm < priv->min_tx_power_level) ||
 685                     (dbm > priv->max_tx_power_level)) {
 686                         mwifiex_dbg(priv->adapter, ERROR,
 687                                     "txpower value %d dBm\t"
 688                                     "is out of range (%d dBm-%d dBm)\n",
 689                                     dbm, priv->min_tx_power_level,
 690                                     priv->max_tx_power_level);
 691                         return -1;
 692                 }
 693         }
 694         buf = kzalloc(MWIFIEX_SIZE_OF_CMD_BUFFER, GFP_KERNEL);
 695         if (!buf)
 696                 return -ENOMEM;
 697
 698         txp_cfg = (struct host_cmd_ds_txpwr_cfg *) buf;
 699         txp_cfg->action = cpu_to_le16(HostCmd_ACT_GEN_SET);
 700         if (!power_cfg->is_power_auto) {
 701                 u16 dbm_min = power_cfg->is_power_fixed ?
 702                               dbm : priv->min_tx_power_level;
 703
 704                 txp_cfg->mode = cpu_to_le32(1);
 705                 pg_tlv = (struct mwifiex_types_power_group *)
 706                          (buf + sizeof(struct host_cmd_ds_txpwr_cfg));
 707                 pg_tlv->type = cpu_to_le16(TLV_TYPE_POWER_GROUP);
 708                 pg_tlv->length =
 709                         cpu_to_le16(4 * sizeof(struct mwifiex_power_group));
 710                 pg = (struct mwifiex_power_group *)
 711                      (buf + sizeof(struct host_cmd_ds_txpwr_cfg)
 712                       + sizeof(struct mwifiex_types_power_group));
 713                 /* Power group for modulation class HR/DSSS */
 714                 pg->first_rate_code = 0x00;
 715                 pg->last_rate_code = 0x03;
 716                 pg->modulation_class = MOD_CLASS_HR_DSSS;
 717                 pg->power_step = 0;
 718                 pg->power_min = (s8) dbm_min;
 719                 pg->power_max = (s8) dbm;
 720                 pg++;
 721                 /* Power group for modulation class OFDM */
 722                 pg->first_rate_code = 0x00;
 723                 pg->last_rate_code = 0x07;
 724                 pg->modulation_class = MOD_CLASS_OFDM;
 725                 pg->power_step = 0;
 726                 pg->power_min = (s8) dbm_min;
 727                 pg->power_max = (s8) dbm;
 728                 pg++;
 729                 /* Power group for modulation class HTBW20 */
 730                 pg->first_rate_code = 0x00;
 731                 pg->last_rate_code = 0x20;
 732                 pg->modulation_class = MOD_CLASS_HT;
 733                 pg->power_step = 0;
 734                 pg->power_min = (s8) dbm_min;
 735                 pg->power_max = (s8) dbm;
 736                 pg->ht_bandwidth = HT_BW_20;
 737                 pg++;
 738                 /* Power group for modulation class HTBW40 */
 739                 pg->first_rate_code = 0x00;
 740                 pg->last_rate_code = 0x20;
 741                 pg->modulation_class = MOD_CLASS_HT;
 742                 pg->power_step = 0;
 743                 pg->power_min = (s8) dbm_min;
 744                 pg->power_max = (s8) dbm;
 745                 pg->ht_bandwidth = HT_BW_40;
 746         }
 747         ret = mwifiex_send_cmd(priv, HostCmd_CMD_TXPWR_CFG,
 748                                HostCmd_ACT_GEN_SET, 0, buf, true);
 749
 750         kfree(buf);
 751         return ret;
 752 }
 753
 754 /*
 755  * IOCTL request handler to get power save mode.
 756  *
 757  * This function prepares the correct firmware command and
 758  * issues it.
 759  */
 760 int mwifiex_drv_set_power(struct mwifiex_private *priv, u32 *ps_mode)
 761 {
 762         int ret;
 763         struct mwifiex_adapter *adapter = priv->adapter;
 764         u16 sub_cmd;
 765
 766         if (*ps_mode)
 767                 adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_PSP;
 768         else
 769                 adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_CAM;
 770         sub_cmd = (*ps_mode) ? EN_AUTO_PS : DIS_AUTO_PS;
 771         ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_PS_MODE_ENH,
 772                                sub_cmd, BITMAP_STA_PS, NULL, true);
 773         if ((!ret) && (sub_cmd == DIS_AUTO_PS))
 774                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_PS_MODE_ENH,
 775                                        GET_PS, 0, NULL, false);
 776
 777         return ret;
 778 }
 779
 780 /*
 781  * IOCTL request handler to set/reset WPA IE.
 782  *
 783  * The supplied WPA IE is treated as a opaque buffer. Only the first field
 784  * is checked to determine WPA version. If buffer length is zero, the existing
 785  * WPA IE is reset.
 786  */
 787 static int mwifiex_set_wpa_ie(struct mwifiex_private *priv,
 788                               u8 *ie_data_ptr, u16 ie_len)
 789 {
 790         if (ie_len) {
 791                 if (ie_len > sizeof(priv->wpa_ie)) {
 792                         mwifiex_dbg(priv->adapter, ERROR,
 793                                     "failed to copy WPA IE, too big\n");
 794                         return -1;
 795                 }
 796                 memcpy(priv->wpa_ie, ie_data_ptr, ie_len);
 797                 priv->wpa_ie_len = ie_len;
 798                 mwifiex_dbg(priv->adapter, CMD,
 799                             "cmd: Set Wpa_ie_len=%d IE=%#x\n",
 800                             priv->wpa_ie_len, priv->wpa_ie[0]);
 801
 802                 if (priv->wpa_ie[0] == WLAN_EID_VENDOR_SPECIFIC) {
 803                         priv->sec_info.wpa_enabled = true;
 804                 } else if (priv->wpa_ie[0] == WLAN_EID_RSN) {
 805                         priv->sec_info.wpa2_enabled = true;
 806                 } else {
 807                         priv->sec_info.wpa_enabled = false;
 808                         priv->sec_info.wpa2_enabled = false;
 809                 }
 810         } else {
 811                 memset(priv->wpa_ie, 0, sizeof(priv->wpa_ie));
 812                 priv->wpa_ie_len = 0;
 813                 mwifiex_dbg(priv->adapter, INFO,
 814                             "info: reset wpa_ie_len=%d IE=%#x\n",
 815                             priv->wpa_ie_len, priv->wpa_ie[0]);
 816                 priv->sec_info.wpa_enabled = false;
 817                 priv->sec_info.wpa2_enabled = false;
 818         }
 819
 820         return 0;
 821 }
 822
 823 /*
 824  * IOCTL request handler to set/reset WAPI IE.
 825  *
 826  * The supplied WAPI IE is treated as a opaque buffer. Only the first field
 827  * is checked to internally enable WAPI. If buffer length is zero, the existing
 828  * WAPI IE is reset.
 829  */
 830 static int mwifiex_set_wapi_ie(struct mwifiex_private *priv,
 831                                u8 *ie_data_ptr, u16 ie_len)
 832 {
 833         if (ie_len) {
 834                 if (ie_len > sizeof(priv->wapi_ie)) {
 835                         mwifiex_dbg(priv->adapter, ERROR,
 836                                     "info: failed to copy WAPI IE, too big\n");
 837                         return -1;
 838                 }
 839                 memcpy(priv->wapi_ie, ie_data_ptr, ie_len);
 840                 priv->wapi_ie_len = ie_len;
 841                 mwifiex_dbg(priv->adapter, CMD,
 842                             "cmd: Set wapi_ie_len=%d IE=%#x\n",
 843                             priv->wapi_ie_len, priv->wapi_ie[0]);
 844
 845                 if (priv->wapi_ie[0] == WLAN_EID_BSS_AC_ACCESS_DELAY)
 846                         priv->sec_info.wapi_enabled = true;
 847         } else {
 848                 memset(priv->wapi_ie, 0, sizeof(priv->wapi_ie));
 849                 priv->wapi_ie_len = ie_len;
 850                 mwifiex_dbg(priv->adapter, INFO,
 851                             "info: Reset wapi_ie_len=%d IE=%#x\n",
 852                             priv->wapi_ie_len, priv->wapi_ie[0]);
 853                 priv->sec_info.wapi_enabled = false;
 854         }
 855         return 0;
 856 }
 857
 858 /*
 859  * IOCTL request handler to set/reset WPS IE.
 860  *
 861  * The supplied WPS IE is treated as a opaque buffer. Only the first field
 862  * is checked to internally enable WPS. If buffer length is zero, the existing
 863  * WPS IE is reset.
 864  */
 865 static int mwifiex_set_wps_ie(struct mwifiex_private *priv,
 866                                u8 *ie_data_ptr, u16 ie_len)
 867 {
 868         if (ie_len) {
 869                 if (ie_len > MWIFIEX_MAX_VSIE_LEN) {
 870                         mwifiex_dbg(priv->adapter, ERROR,
 871                                     "info: failed to copy WPS IE, too big\n");
 872                         return -1;
 873                 }
 874
 875                 priv->wps_ie = kzalloc(MWIFIEX_MAX_VSIE_LEN, GFP_KERNEL);
 876                 if (!priv->wps_ie)
 877                         return -ENOMEM;
 878
 879                 memcpy(priv->wps_ie, ie_data_ptr, ie_len);
 880                 priv->wps_ie_len = ie_len;
 881                 mwifiex_dbg(priv->adapter, CMD,
 882                             "cmd: Set wps_ie_len=%d IE=%#x\n",
 883                             priv->wps_ie_len, priv->wps_ie[0]);
 884         } else {
 885                 kfree(priv->wps_ie);
 886                 priv->wps_ie_len = ie_len;
 887                 mwifiex_dbg(priv->adapter, INFO,
 888                             "info: Reset wps_ie_len=%d\n", priv->wps_ie_len);
 889         }
 890         return 0;
 891 }
 892
 893 /*
 894  * IOCTL request handler to set WAPI key.
 895  *
 896  * This function prepares the correct firmware command and
 897  * issues it.
 898  */
 899 static int mwifiex_sec_ioctl_set_wapi_key(struct mwifiex_private *priv,
 900                                struct mwifiex_ds_encrypt_key *encrypt_key)
 901 {
 902
 903         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
 904                                 HostCmd_ACT_GEN_SET, KEY_INFO_ENABLED,
 905                                 encrypt_key, true);
 906 }
 907
 908 /*
 909  * IOCTL request handler to set WEP network key.
 910  *
 911  * This function prepares the correct firmware command and
 912  * issues it, after validation checks.
 913  */
 914 static int mwifiex_sec_ioctl_set_wep_key(struct mwifiex_private *priv,
 915                               struct mwifiex_ds_encrypt_key *encrypt_key)
 916 {
 917         struct mwifiex_adapter *adapter = priv->adapter;
 918         int ret;
 919         struct mwifiex_wep_key *wep_key;
 920         int index;
 921
 922         if (priv->wep_key_curr_index >= NUM_WEP_KEYS)
 923                 priv->wep_key_curr_index = 0;
 924         wep_key = &priv->wep_key[priv->wep_key_curr_index];
 925         index = encrypt_key->key_index;
 926         if (encrypt_key->key_disable) {
 927                 priv->sec_info.wep_enabled = 0;
 928         } else if (!encrypt_key->key_len) {
 929                 /* Copy the required key as the current key */
 930                 wep_key = &priv->wep_key[index];
 931                 if (!wep_key->key_length) {
 932                         mwifiex_dbg(adapter, ERROR,
 933                                     "key not set, so cannot enable it\n");
 934                         return -1;
 935                 }
 936
 937                 if (adapter->key_api_major_ver == KEY_API_VER_MAJOR_V2) {
 938                         memcpy(encrypt_key->key_material,
 939                                wep_key->key_material, wep_key->key_length);
 940                         encrypt_key->key_len = wep_key->key_length;
 941                 }
 942
 943                 priv->wep_key_curr_index = (u16) index;
 944                 priv->sec_info.wep_enabled = 1;
 945         } else {
 946                 wep_key = &priv->wep_key[index];
 947                 memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
 948                 /* Copy the key in the driver */
 949                 memcpy(wep_key->key_material,
 950                        encrypt_key->key_material,
 951                        encrypt_key->key_len);
 952                 wep_key->key_index = index;
 953                 wep_key->key_length = encrypt_key->key_len;
 954                 priv->sec_info.wep_enabled = 1;
 955         }
 956         if (wep_key->key_length) {
 957                 void *enc_key;
 958
 959                 if (encrypt_key->key_disable) {
 960                         memset(&priv->wep_key[index], 0,
 961                                sizeof(struct mwifiex_wep_key));
 962                         goto done;
 963                 }
 964
 965                 if (adapter->key_api_major_ver == KEY_API_VER_MAJOR_V2)
 966                         enc_key = encrypt_key;
 967                 else
 968                         enc_key = NULL;
 969
 970                 /* Send request to firmware */
 971                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
 972                                        HostCmd_ACT_GEN_SET, 0, enc_key, false);
 973                 if (ret)
 974                         return ret;
 975         }
 976
 977 done:
 978         if (priv->sec_info.wep_enabled)
 979                 priv->curr_pkt_filter |= HostCmd_ACT_MAC_WEP_ENABLE;
 980         else
 981                 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_WEP_ENABLE;
 982
 983         ret = mwifiex_send_cmd(priv, HostCmd_CMD_MAC_CONTROL,
 984                                HostCmd_ACT_GEN_SET, 0,
 985                                &priv->curr_pkt_filter, true);
 986
 987         return ret;
 988 }
 989
 990 /*
 991  * IOCTL request handler to set WPA key.
 992  *
 993  * This function prepares the correct firmware command and
 994  * issues it, after validation checks.
 995  *
 996  * Current driver only supports key length of up to 32 bytes.
 997  *
 998  * This function can also be used to disable a currently set key.
 999  */
1000 static int mwifiex_sec_ioctl_set_wpa_key(struct mwifiex_private *priv,
1001                               struct mwifiex_ds_encrypt_key *encrypt_key)
1002 {
1003         int ret;
1004         u8 remove_key = false;
1005         struct host_cmd_ds_802_11_key_material *ibss_key;
1006
1007         /* Current driver only supports key length of up to 32 bytes */
1008         if (encrypt_key->key_len > WLAN_MAX_KEY_LEN) {
1009                 mwifiex_dbg(priv->adapter, ERROR,
1010                             "key length too long\n");
1011                 return -1;
1012         }
1013
1014         if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
1015                 /*
1016                  * IBSS/WPA-None uses only one key (Group) for both receiving
1017                  * and sending unicast and multicast packets.
1018                  */
1019                 /* Send the key as PTK to firmware */
1020                 encrypt_key->key_index = MWIFIEX_KEY_INDEX_UNICAST;
1021                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
1022                                        HostCmd_ACT_GEN_SET,
1023                                        KEY_INFO_ENABLED, encrypt_key, false);
1024                 if (ret)
1025                         return ret;
1026
1027                 ibss_key = &priv->aes_key;
1028                 memset(ibss_key, 0,
1029                        sizeof(struct host_cmd_ds_802_11_key_material));
1030                 /* Copy the key in the driver */
1031                 memcpy(ibss_key->key_param_set.key, encrypt_key->key_material,
1032                        encrypt_key->key_len);
1033                 memcpy(&ibss_key->key_param_set.key_len, &encrypt_key->key_len,
1034                        sizeof(ibss_key->key_param_set.key_len));
1035                 ibss_key->key_param_set.key_type_id
1036                         = cpu_to_le16(KEY_TYPE_ID_TKIP);
1037                 ibss_key->key_param_set.key_info = cpu_to_le16(KEY_ENABLED);
1038
1039                 /* Send the key as GTK to firmware */
1040                 encrypt_key->key_index = ~MWIFIEX_KEY_INDEX_UNICAST;
1041         }
1042
1043         if (!encrypt_key->key_index)
1044                 encrypt_key->key_index = MWIFIEX_KEY_INDEX_UNICAST;
1045
1046         if (remove_key)
1047                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
1048                                        HostCmd_ACT_GEN_SET,
1049                                        !KEY_INFO_ENABLED, encrypt_key, true);
1050         else
1051                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
1052                                        HostCmd_ACT_GEN_SET,
1053                                        KEY_INFO_ENABLED, encrypt_key, true);
1054
1055         return ret;
1056 }
1057
1058 /*
1059  * IOCTL request handler to set/get network keys.
1060  *
1061  * This is a generic key handling function which supports WEP, WPA
1062  * and WAPI.
1063  */
1064 static int
1065 mwifiex_sec_ioctl_encrypt_key(struct mwifiex_private *priv,
1066                               struct mwifiex_ds_encrypt_key *encrypt_key)
1067 {
1068         int status;
1069
1070         if (encrypt_key->is_wapi_key)
1071                 status = mwifiex_sec_ioctl_set_wapi_key(priv, encrypt_key);
1072         else if (encrypt_key->key_len > WLAN_KEY_LEN_WEP104)
1073                 status = mwifiex_sec_ioctl_set_wpa_key(priv, encrypt_key);
1074         else
1075                 status = mwifiex_sec_ioctl_set_wep_key(priv, encrypt_key);
1076         return status;
1077 }
1078
1079 /*
1080  * This function returns the driver version.
1081  */
1082 int
1083 mwifiex_drv_get_driver_version(struct mwifiex_adapter *adapter, char *version,
1084                                int max_len)
1085 {
1086         union {
1087                 __le32 l;
1088                 u8 c[4];
1089         } ver;
1090         char fw_ver[32];
1091
1092         ver.l = cpu_to_le32(adapter->fw_release_number);
1093         sprintf(fw_ver, "%u.%u.%u.p%u", ver.c[2], ver.c[1], ver.c[0], ver.c[3]);
1094
1095         snprintf(version, max_len, driver_version, fw_ver);
1096
1097         mwifiex_dbg(adapter, MSG, "info: MWIFIEX VERSION: %s\n", version);
1098
1099         return 0;
1100 }
1101
1102 /*
1103  * Sends IOCTL request to set encoding parameters.
1104  *
1105  * This function allocates the IOCTL request buffer, fills it
1106  * with requisite parameters and calls the IOCTL handler.
1107  */
1108 int mwifiex_set_encode(struct mwifiex_private *priv, struct key_params *kp,
1109                        const u8 *key, int key_len, u8 key_index,
1110                        const u8 *mac_addr, int disable)
1111 {
1112         struct mwifiex_ds_encrypt_key encrypt_key;
1113
1114         memset(&encrypt_key, 0, sizeof(encrypt_key));
1115         encrypt_key.key_len = key_len;
1116         encrypt_key.key_index = key_index;
1117
1118         if (kp && kp->cipher == WLAN_CIPHER_SUITE_AES_CMAC)
1119                 encrypt_key.is_igtk_key = true;
1120
1121         if (!disable) {
1122                 if (key_len)
1123                         memcpy(encrypt_key.key_material, key, key_len);
1124                 else
1125                         encrypt_key.is_current_wep_key = true;
1126
1127                 if (mac_addr)
1128                         memcpy(encrypt_key.mac_addr, mac_addr, ETH_ALEN);
1129                 if (kp && kp->seq && kp->seq_len) {
1130                         memcpy(encrypt_key.pn, kp->seq, kp->seq_len);
1131                         encrypt_key.pn_len = kp->seq_len;
1132                         encrypt_key.is_rx_seq_valid = true;
1133                 }
1134         } else {
1135                 encrypt_key.key_disable = true;
1136                 if (mac_addr)
1137                         memcpy(encrypt_key.mac_addr, mac_addr, ETH_ALEN);
1138         }
1139
1140         return mwifiex_sec_ioctl_encrypt_key(priv, &encrypt_key);
1141 }
1142
1143 /*
1144  * Sends IOCTL request to get extended version.
1145  *
1146  * This function allocates the IOCTL request buffer, fills it
1147  * with requisite parameters and calls the IOCTL handler.
1148  */
1149 int
1150 mwifiex_get_ver_ext(struct mwifiex_private *priv, u32 version_str_sel)
1151 {
1152         struct mwifiex_ver_ext ver_ext;
1153
1154         memset(&ver_ext, 0, sizeof(ver_ext));
1155         ver_ext.version_str_sel = version_str_sel;
1156         if (mwifiex_send_cmd(priv, HostCmd_CMD_VERSION_EXT,
1157                              HostCmd_ACT_GEN_GET, 0, &ver_ext, true))
1158                 return -1;
1159
1160         return 0;
1161 }
1162
1163 int
1164 mwifiex_remain_on_chan_cfg(struct mwifiex_private *priv, u16 action,
1165                            struct ieee80211_channel *chan,
1166                            unsigned int duration)
1167 {
1168         struct host_cmd_ds_remain_on_chan roc_cfg;
1169         u8 sc;
1170
1171         memset(&roc_cfg, 0, sizeof(roc_cfg));
1172         roc_cfg.action = cpu_to_le16(action);
1173         if (action == HostCmd_ACT_GEN_SET) {
1174                 roc_cfg.band_cfg = chan->band;
1175                 sc = mwifiex_chan_type_to_sec_chan_offset(NL80211_CHAN_NO_HT);
1176                 roc_cfg.band_cfg |= (sc << 2);
1177
1178                 roc_cfg.channel =
1179                         ieee80211_frequency_to_channel(chan->center_freq);
1180                 roc_cfg.duration = cpu_to_le32(duration);
1181         }
1182         if (mwifiex_send_cmd(priv, HostCmd_CMD_REMAIN_ON_CHAN,
1183                              action, 0, &roc_cfg, true)) {
1184                 mwifiex_dbg(priv->adapter, ERROR,
1185                             "failed to remain on channel\n");
1186                 return -1;
1187         }
1188
1189         return roc_cfg.status;
1190 }
1191
1192 /*
1193  * Sends IOCTL request to get statistics information.
1194  *
1195  * This function allocates the IOCTL request buffer, fills it
1196  * with requisite parameters and calls the IOCTL handler.
1197  */
1198 int
1199 mwifiex_get_stats_info(struct mwifiex_private *priv,
1200                        struct mwifiex_ds_get_stats *log)
1201 {
1202         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_GET_LOG,
1203                                 HostCmd_ACT_GEN_GET, 0, log, true);
1204 }
1205
1206 /*
1207  * IOCTL request handler to read/write register.
1208  *
1209  * This function prepares the correct firmware command and
1210  * issues it.
1211  *
1212  * Access to the following registers are supported -
1213  *      - MAC
1214  *      - BBP
1215  *      - RF
1216  *      - PMIC
1217  *      - CAU
1218  */
1219 static int mwifiex_reg_mem_ioctl_reg_rw(struct mwifiex_private *priv,
1220                                         struct mwifiex_ds_reg_rw *reg_rw,
1221                                         u16 action)
1222 {
1223         u16 cmd_no;
1224
1225         switch (reg_rw->type) {
1226         case MWIFIEX_REG_MAC:
1227                 cmd_no = HostCmd_CMD_MAC_REG_ACCESS;
1228                 break;
1229         case MWIFIEX_REG_BBP:
1230                 cmd_no = HostCmd_CMD_BBP_REG_ACCESS;
1231                 break;
1232         case MWIFIEX_REG_RF:
1233                 cmd_no = HostCmd_CMD_RF_REG_ACCESS;
1234                 break;
1235         case MWIFIEX_REG_PMIC:
1236                 cmd_no = HostCmd_CMD_PMIC_REG_ACCESS;
1237                 break;
1238         case MWIFIEX_REG_CAU:
1239                 cmd_no = HostCmd_CMD_CAU_REG_ACCESS;
1240                 break;
1241         default:
1242                 return -1;
1243         }
1244
1245         return mwifiex_send_cmd(priv, cmd_no, action, 0, reg_rw, true);
1246 }
1247
1248 /*
1249  * Sends IOCTL request to write to a register.
1250  *
1251  * This function allocates the IOCTL request buffer, fills it
1252  * with requisite parameters and calls the IOCTL handler.
1253  */
1254 int
1255 mwifiex_reg_write(struct mwifiex_private *priv, u32 reg_type,
1256                   u32 reg_offset, u32 reg_value)
1257 {
1258         struct mwifiex_ds_reg_rw reg_rw;
1259
1260         reg_rw.type = reg_type;
1261         reg_rw.offset = reg_offset;
1262         reg_rw.value = reg_value;
1263
1264         return mwifiex_reg_mem_ioctl_reg_rw(priv, &reg_rw, HostCmd_ACT_GEN_SET);
1265 }
1266
1267 /*
1268  * Sends IOCTL request to read from a register.
1269  *
1270  * This function allocates the IOCTL request buffer, fills it
1271  * with requisite parameters and calls the IOCTL handler.
1272  */
1273 int
1274 mwifiex_reg_read(struct mwifiex_private *priv, u32 reg_type,
1275                  u32 reg_offset, u32 *value)
1276 {
1277         int ret;
1278         struct mwifiex_ds_reg_rw reg_rw;
1279
1280         reg_rw.type = reg_type;
1281         reg_rw.offset = reg_offset;
1282         ret = mwifiex_reg_mem_ioctl_reg_rw(priv, &reg_rw, HostCmd_ACT_GEN_GET);
1283
1284         if (ret)
1285                 goto done;
1286
1287         *value = reg_rw.value;
1288
1289 done:
1290         return ret;
1291 }
1292
1293 /*
1294  * Sends IOCTL request to read from EEPROM.
1295  *
1296  * This function allocates the IOCTL request buffer, fills it
1297  * with requisite parameters and calls the IOCTL handler.
1298  */
1299 int
1300 mwifiex_eeprom_read(struct mwifiex_private *priv, u16 offset, u16 bytes,
1301                     u8 *value)
1302 {
1303         int ret;
1304         struct mwifiex_ds_read_eeprom rd_eeprom;
1305
1306         rd_eeprom.offset =  offset;
1307         rd_eeprom.byte_count = bytes;
1308
1309         /* Send request to firmware */
1310         ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_EEPROM_ACCESS,
1311                                HostCmd_ACT_GEN_GET, 0, &rd_eeprom, true);
1312
1313         if (!ret)
1314                 memcpy(value, rd_eeprom.value, min((u16)MAX_EEPROM_DATA,
1315                        rd_eeprom.byte_count));
1316         return ret;
1317 }
1318
1319 /*
1320  * This function sets a generic IE. In addition to generic IE, it can
1321  * also handle WPA, WPA2 and WAPI IEs.
1322  */
1323 static int
1324 mwifiex_set_gen_ie_helper(struct mwifiex_private *priv, u8 *ie_data_ptr,
1325                           u16 ie_len)
1326 {
1327         struct ieee_types_vendor_header *pvendor_ie;
1328         const u8 wpa_oui[] = { 0x00, 0x50, 0xf2, 0x01 };
1329         const u8 wps_oui[] = { 0x00, 0x50, 0xf2, 0x04 };
1330         u16 unparsed_len = ie_len, cur_ie_len;
1331
1332         /* If the passed length is zero, reset the buffer */
1333         if (!ie_len) {
1334                 priv->gen_ie_buf_len = 0;
1335                 priv->wps.session_enable = false;
1336                 return 0;
1337         } else if (!ie_data_ptr ||
1338                    ie_len <= sizeof(struct ieee_types_header)) {
1339                 return -1;
1340         }
1341         pvendor_ie = (struct ieee_types_vendor_header *) ie_data_ptr;
1342
1343         while (pvendor_ie) {
1344                 cur_ie_len = pvendor_ie->len + sizeof(struct ieee_types_header);
1345
1346                 if (pvendor_ie->element_id == WLAN_EID_RSN) {
1347                         /* IE is a WPA/WPA2 IE so call set_wpa function */
1348                         mwifiex_set_wpa_ie(priv, (u8 *)pvendor_ie, cur_ie_len);
1349                         priv->wps.session_enable = false;
1350                         goto next_ie;
1351                 }
1352
1353                 if (pvendor_ie->element_id == WLAN_EID_BSS_AC_ACCESS_DELAY) {
1354                         /* IE is a WAPI IE so call set_wapi function */
1355                         mwifiex_set_wapi_ie(priv, (u8 *)pvendor_ie,
1356                                             cur_ie_len);
1357                         goto next_ie;
1358                 }
1359
1360                 if (pvendor_ie->element_id == WLAN_EID_VENDOR_SPECIFIC) {
1361                         /* Test to see if it is a WPA IE, if not, then
1362                          * it is a gen IE
1363                          */
1364                         if (!memcmp(&pvendor_ie->oui, wpa_oui,
1365                                     sizeof(wpa_oui))) {
1366                                 /* IE is a WPA/WPA2 IE so call set_wpa function
1367                                  */
1368                                 mwifiex_set_wpa_ie(priv, (u8 *)pvendor_ie,
1369                                                    cur_ie_len);
1370                                 priv->wps.session_enable = false;
1371                                 goto next_ie;
1372                         }
1373
1374                         if (!memcmp(&pvendor_ie->oui, wps_oui,
1375                                     sizeof(wps_oui))) {
1376                                 /* Test to see if it is a WPS IE,
1377                                  * if so, enable wps session flag
1378                                  */
1379                                 priv->wps.session_enable = true;
1380                                 mwifiex_dbg(priv->adapter, MSG,
1381                                             "WPS Session Enabled.\n");
1382                                 mwifiex_set_wps_ie(priv, (u8 *)pvendor_ie,
1383                                                    cur_ie_len);
1384                                 goto next_ie;
1385                         }
1386                 }
1387
1388                 /* Saved in gen_ie, such as P2P IE.etc.*/
1389
1390                 /* Verify that the passed length is not larger than the
1391                  * available space remaining in the buffer
1392                  */
1393                 if (cur_ie_len <
1394                     (sizeof(priv->gen_ie_buf) - priv->gen_ie_buf_len)) {
1395                         /* Append the passed data to the end
1396                          * of the genIeBuffer
1397                          */
1398                         memcpy(priv->gen_ie_buf + priv->gen_ie_buf_len,
1399                                (u8 *)pvendor_ie, cur_ie_len);
1400                         /* Increment the stored buffer length by the
1401                          * size passed
1402                          */
1403                         priv->gen_ie_buf_len += cur_ie_len;
1404                 }
1405
1406 next_ie:
1407                 unparsed_len -= cur_ie_len;
1408
1409                 if (unparsed_len <= sizeof(struct ieee_types_header))
1410                         pvendor_ie = NULL;
1411                 else
1412                         pvendor_ie = (struct ieee_types_vendor_header *)
1413                                 (((u8 *)pvendor_ie) + cur_ie_len);
1414         }
1415
1416         return 0;
1417 }
1418
1419 /*
1420  * IOCTL request handler to set/get generic IE.
1421  *
1422  * In addition to various generic IEs, this function can also be
1423  * used to set the ARP filter.
1424  */
1425 static int mwifiex_misc_ioctl_gen_ie(struct mwifiex_private *priv,
1426                                      struct mwifiex_ds_misc_gen_ie *gen_ie,
1427                                      u16 action)
1428 {
1429         struct mwifiex_adapter *adapter = priv->adapter;
1430
1431         switch (gen_ie->type) {
1432         case MWIFIEX_IE_TYPE_GEN_IE:
1433                 if (action == HostCmd_ACT_GEN_GET) {
1434                         gen_ie->len = priv->wpa_ie_len;
1435                         memcpy(gen_ie->ie_data, priv->wpa_ie, gen_ie->len);
1436                 } else {
1437                         mwifiex_set_gen_ie_helper(priv, gen_ie->ie_data,
1438                                                   (u16) gen_ie->len);
1439                 }
1440                 break;
1441         case MWIFIEX_IE_TYPE_ARP_FILTER:
1442                 memset(adapter->arp_filter, 0, sizeof(adapter->arp_filter));
1443                 if (gen_ie->len > ARP_FILTER_MAX_BUF_SIZE) {
1444                         adapter->arp_filter_size = 0;
1445                         mwifiex_dbg(adapter, ERROR,
1446                                     "invalid ARP filter size\n");
1447                         return -1;
1448                 } else {
1449                         memcpy(adapter->arp_filter, gen_ie->ie_data,
1450                                gen_ie->len);
1451                         adapter->arp_filter_size = gen_ie->len;
1452                 }
1453                 break;
1454         default:
1455                 mwifiex_dbg(adapter, ERROR, "invalid IE type\n");
1456                 return -1;
1457         }
1458         return 0;
1459 }
1460
1461 /*
1462  * Sends IOCTL request to set a generic IE.
1463  *
1464  * This function allocates the IOCTL request buffer, fills it
1465  * with requisite parameters and calls the IOCTL handler.
1466  */
1467 int
1468 mwifiex_set_gen_ie(struct mwifiex_private *priv, const u8 *ie, int ie_len)
1469 {
1470         struct mwifiex_ds_misc_gen_ie gen_ie;
1471
1472         if (ie_len > IEEE_MAX_IE_SIZE)
1473                 return -EFAULT;
1474
1475         gen_ie.type = MWIFIEX_IE_TYPE_GEN_IE;
1476         gen_ie.len = ie_len;
1477         memcpy(gen_ie.ie_data, ie, ie_len);
1478         if (mwifiex_misc_ioctl_gen_ie(priv, &gen_ie, HostCmd_ACT_GEN_SET))
1479                 return -EFAULT;
1480
1481         return 0;
1482 }
1483
1484 /* This function get Host Sleep wake up reason.
1485  *
1486  */
1487 int mwifiex_get_wakeup_reason(struct mwifiex_private *priv, u16 action,
1488                               int cmd_type,
1489                               struct mwifiex_ds_wakeup_reason *wakeup_reason)
1490 {
1491         int status = 0;
1492
1493         status = mwifiex_send_cmd(priv, HostCmd_CMD_HS_WAKEUP_REASON,
1494                                   HostCmd_ACT_GEN_GET, 0, wakeup_reason,
1495                                   cmd_type == MWIFIEX_SYNC_CMD);
1496
1497         return status;
1498 }
1499
1500 int mwifiex_get_chan_info(struct mwifiex_private *priv,
1501                           struct mwifiex_channel_band *channel_band)
1502 {
1503         int status = 0;
1504
1505         status = mwifiex_send_cmd(priv, HostCmd_CMD_STA_CONFIGURE,
1506                                   HostCmd_ACT_GEN_GET, 0, channel_band,
1507                                   MWIFIEX_SYNC_CMD);
1508
1509         return status;
1510 }