drivers/net/wireless/mwifiex/sta_ioctl.c

   1 /*
   2  * Marvell Wireless LAN device driver: functions for station ioctl
   3  *
   4  * Copyright (C) 2011, Marvell International Ltd.
   5  *
   6  * This software file (the "File") is distributed by Marvell International
   7  * Ltd. under the terms of the GNU General Public License Version 2, June 1991
   8  * (the "License").  You may use, redistribute and/or modify this File in
   9  * accordance with the terms and conditions of the License, a copy of which
  10  * is available by writing to the Free Software Foundation, Inc.,
  11  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
  12  * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
  13  *
  14  * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
  16  * ARE EXPRESSLY DISCLAIMED.  The License provides additional details about
  17  * this warranty disclaimer.
  18  */
  19
  20 #include "decl.h"
  21 #include "ioctl.h"
  22 #include "util.h"
  23 #include "fw.h"
  24 #include "main.h"
  25 #include "wmm.h"
  26 #include "11n.h"
  27 #include "cfg80211.h"
  28
  29 static int disconnect_on_suspend = 1;
  30 module_param(disconnect_on_suspend, int, 0644);
  31
  32 /*
  33  * Copies the multicast address list from device to driver.
  34  *
  35  * This function does not validate the destination memory for
  36  * size, and the calling function must ensure enough memory is
  37  * available.
  38  */
  39 int mwifiex_copy_mcast_addr(struct mwifiex_multicast_list *mlist,
  40                             struct net_device *dev)
  41 {
  42         int i = 0;
  43         struct netdev_hw_addr *ha;
  44
  45         netdev_for_each_mc_addr(ha, dev)
  46                 memcpy(&mlist->mac_list[i++], ha->addr, ETH_ALEN);
  47
  48         return i;
  49 }
  50
  51 /*
  52  * Wait queue completion handler.
  53  *
  54  * This function waits on a cmd wait queue. It also cancels the pending
  55  * request after waking up, in case of errors.
  56  */
  57 int mwifiex_wait_queue_complete(struct mwifiex_adapter *adapter)
  58 {
  59         bool cancel_flag = false;
  60         int status;
  61         struct cmd_ctrl_node *cmd_queued;
  62
  63         if (!adapter->cmd_queued)
  64                 return 0;
  65
  66         cmd_queued = adapter->cmd_queued;
  67         adapter->cmd_queued = NULL;
  68
  69         dev_dbg(adapter->dev, "cmd pending\n");
  70         atomic_inc(&adapter->cmd_pending);
  71
  72         /* Wait for completion */
  73         wait_event_interruptible(adapter->cmd_wait_q.wait,
  74                                  *(cmd_queued->condition));
  75         if (!*(cmd_queued->condition))
  76                 cancel_flag = true;
  77
  78         if (cancel_flag) {
  79                 mwifiex_cancel_pending_ioctl(adapter);
  80                 dev_dbg(adapter->dev, "cmd cancel\n");
  81         }
  82
  83         status = adapter->cmd_wait_q.status;
  84         adapter->cmd_wait_q.status = 0;
  85
  86         return status;
  87 }
  88
  89 /*
  90  * This function prepares the correct firmware command and
  91  * issues it to set the multicast list.
  92  *
  93  * This function can be used to enable promiscuous mode, or enable all
  94  * multicast packets, or to enable selective multicast.
  95  */
  96 int mwifiex_request_set_multicast_list(struct mwifiex_private *priv,
  97                                 struct mwifiex_multicast_list *mcast_list)
  98 {
  99         int ret = 0;
 100         u16 old_pkt_filter;
 101
 102         old_pkt_filter = priv->curr_pkt_filter;
 103
 104         if (mcast_list->mode == MWIFIEX_PROMISC_MODE) {
 105                 dev_dbg(priv->adapter->dev, "info: Enable Promiscuous mode\n");
 106                 priv->curr_pkt_filter |= HostCmd_ACT_MAC_PROMISCUOUS_ENABLE;
 107                 priv->curr_pkt_filter &=
 108                         ~HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE;
 109         } else {
 110                 /* Multicast */
 111                 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_PROMISCUOUS_ENABLE;
 112                 if (mcast_list->mode == MWIFIEX_MULTICAST_MODE) {
 113                         dev_dbg(priv->adapter->dev,
 114                                 "info: Enabling All Multicast!\n");
 115                         priv->curr_pkt_filter |=
 116                                 HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE;
 117                 } else {
 118                         priv->curr_pkt_filter &=
 119                                 ~HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE;
 120                         if (mcast_list->num_multicast_addr) {
 121                                 dev_dbg(priv->adapter->dev,
 122                                         "info: Set multicast list=%d\n",
 123                                        mcast_list->num_multicast_addr);
 124                                 /* Set multicast addresses to firmware */
 125                                 if (old_pkt_filter == priv->curr_pkt_filter) {
 126                                         /* Send request to firmware */
 127                                         ret = mwifiex_send_cmd_async(priv,
 128                                                 HostCmd_CMD_MAC_MULTICAST_ADR,
 129                                                 HostCmd_ACT_GEN_SET, 0,
 130                                                 mcast_list);
 131                                 } else {
 132                                         /* Send request to firmware */
 133                                         ret = mwifiex_send_cmd_async(priv,
 134                                                 HostCmd_CMD_MAC_MULTICAST_ADR,
 135                                                 HostCmd_ACT_GEN_SET, 0,
 136                                                 mcast_list);
 137                                 }
 138                         }
 139                 }
 140         }
 141         dev_dbg(priv->adapter->dev,
 142                 "info: old_pkt_filter=%#x, curr_pkt_filter=%#x\n",
 143                old_pkt_filter, priv->curr_pkt_filter);
 144         if (old_pkt_filter != priv->curr_pkt_filter) {
 145                 ret = mwifiex_send_cmd_async(priv, HostCmd_CMD_MAC_CONTROL,
 146                                              HostCmd_ACT_GEN_SET,
 147                                              0, &priv->curr_pkt_filter);
 148         }
 149
 150         return ret;
 151 }
 152
 153 /*
 154  * This function fills bss descriptor structure using provided
 155  * information.
 156  */
 157 int mwifiex_fill_new_bss_desc(struct mwifiex_private *priv,
 158                               struct cfg80211_bss *bss,
 159                               struct mwifiex_bssdescriptor *bss_desc)
 160 {
 161         int ret;
 162         u8 *beacon_ie;
 163         struct mwifiex_bss_priv *bss_priv = (void *)bss->priv;
 164
 165         beacon_ie = kmemdup(bss->information_elements, bss->len_beacon_ies,
 166                             GFP_KERNEL);
 167         if (!beacon_ie) {
 168                 dev_err(priv->adapter->dev, " failed to alloc beacon_ie\n");
 169                 return -ENOMEM;
 170         }
 171
 172         memcpy(bss_desc->mac_address, bss->bssid, ETH_ALEN);
 173         bss_desc->rssi = bss->signal;
 174         bss_desc->beacon_buf = beacon_ie;
 175         bss_desc->beacon_buf_size = bss->len_beacon_ies;
 176         bss_desc->beacon_period = bss->beacon_interval;
 177         bss_desc->cap_info_bitmap = bss->capability;
 178         bss_desc->bss_band = bss_priv->band;
 179         bss_desc->fw_tsf = bss_priv->fw_tsf;
 180         bss_desc->timestamp = bss->tsf;
 181         if (bss_desc->cap_info_bitmap & WLAN_CAPABILITY_PRIVACY) {
 182                 dev_dbg(priv->adapter->dev, "info: InterpretIE: AP WEP enabled\n");
 183                 bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_8021X_WEP;
 184         } else {
 185                 bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_ACCEPT_ALL;
 186         }
 187         if (bss_desc->cap_info_bitmap & WLAN_CAPABILITY_IBSS)
 188                 bss_desc->bss_mode = NL80211_IFTYPE_ADHOC;
 189         else
 190                 bss_desc->bss_mode = NL80211_IFTYPE_STATION;
 191
 192         ret = mwifiex_update_bss_desc_with_ie(priv->adapter, bss_desc);
 193
 194         kfree(beacon_ie);
 195         return ret;
 196 }
 197
 198 static int mwifiex_process_country_ie(struct mwifiex_private *priv,
 199                                       struct cfg80211_bss *bss)
 200 {
 201         u8 *country_ie, country_ie_len;
 202         struct mwifiex_802_11d_domain_reg *domain_info =
 203                                         &priv->adapter->domain_reg;
 204
 205         country_ie = (u8 *)ieee80211_bss_get_ie(bss, WLAN_EID_COUNTRY);
 206
 207         if (!country_ie)
 208                 return 0;
 209
 210         country_ie_len = country_ie[1];
 211         if (country_ie_len < IEEE80211_COUNTRY_IE_MIN_LEN)
 212                 return 0;
 213
 214         domain_info->country_code[0] = country_ie[2];
 215         domain_info->country_code[1] = country_ie[3];
 216         domain_info->country_code[2] = ' ';
 217
 218         country_ie_len -= IEEE80211_COUNTRY_STRING_LEN;
 219
 220         domain_info->no_of_triplet =
 221                 country_ie_len / sizeof(struct ieee80211_country_ie_triplet);
 222
 223         memcpy((u8 *)domain_info->triplet,
 224                &country_ie[2] + IEEE80211_COUNTRY_STRING_LEN, country_ie_len);
 225
 226         if (mwifiex_send_cmd_async(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
 227                                    HostCmd_ACT_GEN_SET, 0, NULL)) {
 228                 wiphy_err(priv->adapter->wiphy,
 229                           "11D: setting domain info in FW\n");
 230                 return -1;
 231         }
 232
 233         return 0;
 234 }
 235
 236 /*
 237  * In Ad-Hoc mode, the IBSS is created if not found in scan list.
 238  * In both Ad-Hoc and infra mode, an deauthentication is performed
 239  * first.
 240  */
 241 int mwifiex_bss_start(struct mwifiex_private *priv, struct cfg80211_bss *bss,
 242                       struct cfg80211_ssid *req_ssid)
 243 {
 244         int ret;
 245         struct mwifiex_adapter *adapter = priv->adapter;
 246         struct mwifiex_bssdescriptor *bss_desc = NULL;
 247
 248         priv->scan_block = false;
 249
 250         if (bss) {
 251                 mwifiex_process_country_ie(priv, bss);
 252
 253                 /* Allocate and fill new bss descriptor */
 254                 bss_desc = kzalloc(sizeof(struct mwifiex_bssdescriptor),
 255                                 GFP_KERNEL);
 256                 if (!bss_desc) {
 257                         dev_err(priv->adapter->dev, " failed to alloc bss_desc\n");
 258                         return -ENOMEM;
 259                 }
 260
 261                 ret = mwifiex_fill_new_bss_desc(priv, bss, bss_desc);
 262                 if (ret)
 263                         goto done;
 264         }
 265
 266         if (priv->bss_mode == NL80211_IFTYPE_STATION) {
 267                 /* Infra mode */
 268                 ret = mwifiex_deauthenticate(priv, NULL);
 269                 if (ret)
 270                         goto done;
 271
 272                 ret = mwifiex_check_network_compatibility(priv, bss_desc);
 273                 if (ret)
 274                         goto done;
 275
 276                 dev_dbg(adapter->dev, "info: SSID found in scan list ... "
 277                                       "associating...\n");
 278
 279                 if (!netif_queue_stopped(priv->netdev))
 280                         mwifiex_stop_net_dev_queue(priv->netdev, adapter);
 281                 if (netif_carrier_ok(priv->netdev))
 282                         netif_carrier_off(priv->netdev);
 283
 284                 /* Clear any past association response stored for
 285                  * application retrieval */
 286                 priv->assoc_rsp_size = 0;
 287                 ret = mwifiex_associate(priv, bss_desc);
 288
 289                 /* If auth type is auto and association fails using open mode,
 290                  * try to connect using shared mode */
 291                 if (ret == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG &&
 292                     priv->sec_info.is_authtype_auto &&
 293                     priv->sec_info.wep_enabled) {
 294                         priv->sec_info.authentication_mode =
 295                                                 NL80211_AUTHTYPE_SHARED_KEY;
 296                         ret = mwifiex_associate(priv, bss_desc);
 297                 }
 298
 299                 if (bss)
 300                         cfg80211_put_bss(bss);
 301         } else {
 302                 /* Adhoc mode */
 303                 /* If the requested SSID matches current SSID, return */
 304                 if (bss_desc && bss_desc->ssid.ssid_len &&
 305                     (!mwifiex_ssid_cmp(&priv->curr_bss_params.bss_descriptor.
 306                                        ssid, &bss_desc->ssid))) {
 307                         kfree(bss_desc);
 308                         return 0;
 309                 }
 310
 311                 /* Exit Adhoc mode first */
 312                 dev_dbg(adapter->dev, "info: Sending Adhoc Stop\n");
 313                 ret = mwifiex_deauthenticate(priv, NULL);
 314                 if (ret)
 315                         goto done;
 316
 317                 priv->adhoc_is_link_sensed = false;
 318
 319                 ret = mwifiex_check_network_compatibility(priv, bss_desc);
 320
 321                 if (!netif_queue_stopped(priv->netdev))
 322                         mwifiex_stop_net_dev_queue(priv->netdev, adapter);
 323                 if (netif_carrier_ok(priv->netdev))
 324                         netif_carrier_off(priv->netdev);
 325
 326                 if (!ret) {
 327                         dev_dbg(adapter->dev, "info: network found in scan"
 328                                                         " list. Joining...\n");
 329                         ret = mwifiex_adhoc_join(priv, bss_desc);
 330                         if (bss)
 331                                 cfg80211_put_bss(bss);
 332                 } else {
 333                         dev_dbg(adapter->dev, "info: Network not found in "
 334                                 "the list, creating adhoc with ssid = %s\n",
 335                                 req_ssid->ssid);
 336                         ret = mwifiex_adhoc_start(priv, req_ssid);
 337                 }
 338         }
 339
 340 done:
 341         kfree(bss_desc);
 342         return ret;
 343 }
 344
 345 /*
 346  * IOCTL request handler to set host sleep configuration.
 347  *
 348  * This function prepares the correct firmware command and
 349  * issues it.
 350  */
 351 static int mwifiex_set_hs_params(struct mwifiex_private *priv, u16 action,
 352                                  int cmd_type, struct mwifiex_ds_hs_cfg *hs_cfg)
 353
 354 {
 355         struct mwifiex_adapter *adapter = priv->adapter;
 356         int status = 0;
 357         u32 prev_cond = 0;
 358
 359         if (!hs_cfg)
 360                 return -ENOMEM;
 361
 362         switch (action) {
 363         case HostCmd_ACT_GEN_SET:
 364                 if (adapter->pps_uapsd_mode) {
 365                         dev_dbg(adapter->dev, "info: Host Sleep IOCTL"
 366                                 " is blocked in UAPSD/PPS mode\n");
 367                         status = -1;
 368                         break;
 369                 }
 370                 if (hs_cfg->is_invoke_hostcmd) {
 371                         if (hs_cfg->conditions == HOST_SLEEP_CFG_CANCEL) {
 372                                 if (!adapter->is_hs_configured)
 373                                         /* Already cancelled */
 374                                         break;
 375                                 /* Save previous condition */
 376                                 prev_cond = le32_to_cpu(adapter->hs_cfg
 377                                                         .conditions);
 378                                 adapter->hs_cfg.conditions =
 379                                                 cpu_to_le32(hs_cfg->conditions);
 380                         } else if (hs_cfg->conditions) {
 381                                 adapter->hs_cfg.conditions =
 382                                                 cpu_to_le32(hs_cfg->conditions);
 383                                 adapter->hs_cfg.gpio = (u8)hs_cfg->gpio;
 384                                 if (hs_cfg->gap)
 385                                         adapter->hs_cfg.gap = (u8)hs_cfg->gap;
 386                         } else if (adapter->hs_cfg.conditions
 387                                    == cpu_to_le32(HOST_SLEEP_CFG_CANCEL)) {
 388                                 /* Return failure if no parameters for HS
 389                                    enable */
 390                                 status = -1;
 391                                 break;
 392                         }
 393                         if (cmd_type == MWIFIEX_SYNC_CMD)
 394                                 status = mwifiex_send_cmd_sync(priv,
 395                                                 HostCmd_CMD_802_11_HS_CFG_ENH,
 396                                                 HostCmd_ACT_GEN_SET, 0,
 397                                                 &adapter->hs_cfg);
 398                         else
 399                                 status = mwifiex_send_cmd_async(priv,
 400                                                 HostCmd_CMD_802_11_HS_CFG_ENH,
 401                                                 HostCmd_ACT_GEN_SET, 0,
 402                                                 &adapter->hs_cfg);
 403                         if (hs_cfg->conditions == HOST_SLEEP_CFG_CANCEL)
 404                                 /* Restore previous condition */
 405                                 adapter->hs_cfg.conditions =
 406                                                 cpu_to_le32(prev_cond);
 407                 } else {
 408                         adapter->hs_cfg.conditions =
 409                                                 cpu_to_le32(hs_cfg->conditions);
 410                         adapter->hs_cfg.gpio = (u8)hs_cfg->gpio;
 411                         adapter->hs_cfg.gap = (u8)hs_cfg->gap;
 412                 }
 413                 break;
 414         case HostCmd_ACT_GEN_GET:
 415                 hs_cfg->conditions = le32_to_cpu(adapter->hs_cfg.conditions);
 416                 hs_cfg->gpio = adapter->hs_cfg.gpio;
 417                 hs_cfg->gap = adapter->hs_cfg.gap;
 418                 break;
 419         default:
 420                 status = -1;
 421                 break;
 422         }
 423
 424         return status;
 425 }
 426
 427 /*
 428  * Sends IOCTL request to cancel the existing Host Sleep configuration.
 429  *
 430  * This function allocates the IOCTL request buffer, fills it
 431  * with requisite parameters and calls the IOCTL handler.
 432  */
 433 int mwifiex_cancel_hs(struct mwifiex_private *priv, int cmd_type)
 434 {
 435         struct mwifiex_ds_hs_cfg hscfg;
 436
 437         hscfg.conditions = HOST_SLEEP_CFG_CANCEL;
 438         hscfg.is_invoke_hostcmd = true;
 439
 440         return mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_SET,
 441                                     cmd_type, &hscfg);
 442 }
 443 EXPORT_SYMBOL_GPL(mwifiex_cancel_hs);
 444
 445 /*
 446  * Sends IOCTL request to cancel the existing Host Sleep configuration.
 447  *
 448  * This function allocates the IOCTL request buffer, fills it
 449  * with requisite parameters and calls the IOCTL handler.
 450  */
 451 int mwifiex_enable_hs(struct mwifiex_adapter *adapter)
 452 {
 453         struct mwifiex_ds_hs_cfg hscfg;
 454         struct mwifiex_private *priv;
 455         int i;
 456
 457         if (disconnect_on_suspend) {
 458                 for (i = 0; i < adapter->priv_num; i++) {
 459                         priv = adapter->priv[i];
 460                         if (priv)
 461                                 mwifiex_deauthenticate(priv, NULL);
 462                 }
 463         }
 464
 465         if (adapter->hs_activated) {
 466                 dev_dbg(adapter->dev, "cmd: HS Already actived\n");
 467                 return true;
 468         }
 469
 470         adapter->hs_activate_wait_q_woken = false;
 471
 472         memset(&hscfg, 0, sizeof(struct mwifiex_ds_hs_cfg));
 473         hscfg.is_invoke_hostcmd = true;
 474
 475         if (mwifiex_set_hs_params(mwifiex_get_priv(adapter,
 476                                                    MWIFIEX_BSS_ROLE_STA),
 477                                   HostCmd_ACT_GEN_SET, MWIFIEX_SYNC_CMD,
 478                                   &hscfg)) {
 479                 dev_err(adapter->dev, "IOCTL request HS enable failed\n");
 480                 return false;
 481         }
 482
 483         wait_event_interruptible(adapter->hs_activate_wait_q,
 484                                  adapter->hs_activate_wait_q_woken);
 485
 486         return true;
 487 }
 488 EXPORT_SYMBOL_GPL(mwifiex_enable_hs);
 489
 490 /*
 491  * IOCTL request handler to get BSS information.
 492  *
 493  * This function collates the information from different driver structures
 494  * to send to the user.
 495  */
 496 int mwifiex_get_bss_info(struct mwifiex_private *priv,
 497                          struct mwifiex_bss_info *info)
 498 {
 499         struct mwifiex_adapter *adapter = priv->adapter;
 500         struct mwifiex_bssdescriptor *bss_desc;
 501
 502         if (!info)
 503                 return -1;
 504
 505         bss_desc = &priv->curr_bss_params.bss_descriptor;
 506
 507         info->bss_mode = priv->bss_mode;
 508
 509         memcpy(&info->ssid, &bss_desc->ssid, sizeof(struct cfg80211_ssid));
 510
 511         memcpy(&info->bssid, &bss_desc->mac_address, ETH_ALEN);
 512
 513         info->bss_chan = bss_desc->channel;
 514
 515         memcpy(info->country_code, adapter->country_code,
 516                IEEE80211_COUNTRY_STRING_LEN);
 517
 518         info->media_connected = priv->media_connected;
 519
 520         info->max_power_level = priv->max_tx_power_level;
 521         info->min_power_level = priv->min_tx_power_level;
 522
 523         info->adhoc_state = priv->adhoc_state;
 524
 525         info->bcn_nf_last = priv->bcn_nf_last;
 526
 527         if (priv->sec_info.wep_enabled)
 528                 info->wep_status = true;
 529         else
 530                 info->wep_status = false;
 531
 532         info->is_hs_configured = adapter->is_hs_configured;
 533         info->is_deep_sleep = adapter->is_deep_sleep;
 534
 535         return 0;
 536 }
 537
 538 /*
 539  * The function disables auto deep sleep mode.
 540  */
 541 int mwifiex_disable_auto_ds(struct mwifiex_private *priv)
 542 {
 543         struct mwifiex_ds_auto_ds auto_ds;
 544
 545         auto_ds.auto_ds = DEEP_SLEEP_OFF;
 546
 547         return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_PS_MODE_ENH,
 548                                      DIS_AUTO_PS, BITMAP_AUTO_DS, &auto_ds);
 549 }
 550 EXPORT_SYMBOL_GPL(mwifiex_disable_auto_ds);
 551
 552 /*
 553  * Sends IOCTL request to get the data rate.
 554  *
 555  * This function allocates the IOCTL request buffer, fills it
 556  * with requisite parameters and calls the IOCTL handler.
 557  */
 558 int mwifiex_drv_get_data_rate(struct mwifiex_private *priv, u32 *rate)
 559 {
 560         int ret;
 561
 562         ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_TX_RATE_QUERY,
 563                                     HostCmd_ACT_GEN_GET, 0, NULL);
 564
 565         if (!ret) {
 566                 if (priv->is_data_rate_auto)
 567                         *rate = mwifiex_index_to_data_rate(priv, priv->tx_rate,
 568                                                            priv->tx_htinfo);
 569                 else
 570                         *rate = priv->data_rate;
 571         }
 572
 573         return ret;
 574 }
 575
 576 /*
 577  * IOCTL request handler to set tx power configuration.
 578  *
 579  * This function prepares the correct firmware command and
 580  * issues it.
 581  *
 582  * For non-auto power mode, all the following power groups are set -
 583  *      - Modulation class HR/DSSS
 584  *      - Modulation class OFDM
 585  *      - Modulation class HTBW20
 586  *      - Modulation class HTBW40
 587  */
 588 int mwifiex_set_tx_power(struct mwifiex_private *priv,
 589                          struct mwifiex_power_cfg *power_cfg)
 590 {
 591         int ret;
 592         struct host_cmd_ds_txpwr_cfg *txp_cfg;
 593         struct mwifiex_types_power_group *pg_tlv;
 594         struct mwifiex_power_group *pg;
 595         u8 *buf;
 596         u16 dbm = 0;
 597
 598         if (!power_cfg->is_power_auto) {
 599                 dbm = (u16) power_cfg->power_level;
 600                 if ((dbm < priv->min_tx_power_level) ||
 601                     (dbm > priv->max_tx_power_level)) {
 602                         dev_err(priv->adapter->dev, "txpower value %d dBm"
 603                                 " is out of range (%d dBm-%d dBm)\n",
 604                                 dbm, priv->min_tx_power_level,
 605                                 priv->max_tx_power_level);
 606                         return -1;
 607                 }
 608         }
 609         buf = kzalloc(MWIFIEX_SIZE_OF_CMD_BUFFER, GFP_KERNEL);
 610         if (!buf) {
 611                 dev_err(priv->adapter->dev, "%s: failed to alloc cmd buffer\n",
 612                         __func__);
 613                 return -ENOMEM;
 614         }
 615
 616         txp_cfg = (struct host_cmd_ds_txpwr_cfg *) buf;
 617         txp_cfg->action = cpu_to_le16(HostCmd_ACT_GEN_SET);
 618         if (!power_cfg->is_power_auto) {
 619                 txp_cfg->mode = cpu_to_le32(1);
 620                 pg_tlv = (struct mwifiex_types_power_group *)
 621                          (buf + sizeof(struct host_cmd_ds_txpwr_cfg));
 622                 pg_tlv->type = TLV_TYPE_POWER_GROUP;
 623                 pg_tlv->length = 4 * sizeof(struct mwifiex_power_group);
 624                 pg = (struct mwifiex_power_group *)
 625                      (buf + sizeof(struct host_cmd_ds_txpwr_cfg)
 626                       + sizeof(struct mwifiex_types_power_group));
 627                 /* Power group for modulation class HR/DSSS */
 628                 pg->first_rate_code = 0x00;
 629                 pg->last_rate_code = 0x03;
 630                 pg->modulation_class = MOD_CLASS_HR_DSSS;
 631                 pg->power_step = 0;
 632                 pg->power_min = (s8) dbm;
 633                 pg->power_max = (s8) dbm;
 634                 pg++;
 635                 /* Power group for modulation class OFDM */
 636                 pg->first_rate_code = 0x00;
 637                 pg->last_rate_code = 0x07;
 638                 pg->modulation_class = MOD_CLASS_OFDM;
 639                 pg->power_step = 0;
 640                 pg->power_min = (s8) dbm;
 641                 pg->power_max = (s8) dbm;
 642                 pg++;
 643                 /* Power group for modulation class HTBW20 */
 644                 pg->first_rate_code = 0x00;
 645                 pg->last_rate_code = 0x20;
 646                 pg->modulation_class = MOD_CLASS_HT;
 647                 pg->power_step = 0;
 648                 pg->power_min = (s8) dbm;
 649                 pg->power_max = (s8) dbm;
 650                 pg->ht_bandwidth = HT_BW_20;
 651                 pg++;
 652                 /* Power group for modulation class HTBW40 */
 653                 pg->first_rate_code = 0x00;
 654                 pg->last_rate_code = 0x20;
 655                 pg->modulation_class = MOD_CLASS_HT;
 656                 pg->power_step = 0;
 657                 pg->power_min = (s8) dbm;
 658                 pg->power_max = (s8) dbm;
 659                 pg->ht_bandwidth = HT_BW_40;
 660         }
 661         ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_TXPWR_CFG,
 662                                     HostCmd_ACT_GEN_SET, 0, buf);
 663
 664         kfree(buf);
 665         return ret;
 666 }
 667
 668 /*
 669  * IOCTL request handler to get power save mode.
 670  *
 671  * This function prepares the correct firmware command and
 672  * issues it.
 673  */
 674 int mwifiex_drv_set_power(struct mwifiex_private *priv, u32 *ps_mode)
 675 {
 676         int ret;
 677         struct mwifiex_adapter *adapter = priv->adapter;
 678         u16 sub_cmd;
 679
 680         if (*ps_mode)
 681                 adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_PSP;
 682         else
 683                 adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_CAM;
 684         sub_cmd = (*ps_mode) ? EN_AUTO_PS : DIS_AUTO_PS;
 685         ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_PS_MODE_ENH,
 686                                     sub_cmd, BITMAP_STA_PS, NULL);
 687         if ((!ret) && (sub_cmd == DIS_AUTO_PS))
 688                 ret = mwifiex_send_cmd_async(priv,
 689                                              HostCmd_CMD_802_11_PS_MODE_ENH,
 690                                              GET_PS, 0, NULL);
 691
 692         return ret;
 693 }
 694
 695 /*
 696  * IOCTL request handler to set/reset WPA IE.
 697  *
 698  * The supplied WPA IE is treated as a opaque buffer. Only the first field
 699  * is checked to determine WPA version. If buffer length is zero, the existing
 700  * WPA IE is reset.
 701  */
 702 static int mwifiex_set_wpa_ie_helper(struct mwifiex_private *priv,
 703                                      u8 *ie_data_ptr, u16 ie_len)
 704 {
 705         if (ie_len) {
 706                 if (ie_len > sizeof(priv->wpa_ie)) {
 707                         dev_err(priv->adapter->dev,
 708                                 "failed to copy WPA IE, too big\n");
 709                         return -1;
 710                 }
 711                 memcpy(priv->wpa_ie, ie_data_ptr, ie_len);
 712                 priv->wpa_ie_len = (u8) ie_len;
 713                 dev_dbg(priv->adapter->dev, "cmd: Set Wpa_ie_len=%d IE=%#x\n",
 714                         priv->wpa_ie_len, priv->wpa_ie[0]);
 715
 716                 if (priv->wpa_ie[0] == WLAN_EID_WPA) {
 717                         priv->sec_info.wpa_enabled = true;
 718                 } else if (priv->wpa_ie[0] == WLAN_EID_RSN) {
 719                         priv->sec_info.wpa2_enabled = true;
 720                 } else {
 721                         priv->sec_info.wpa_enabled = false;
 722                         priv->sec_info.wpa2_enabled = false;
 723                 }
 724         } else {
 725                 memset(priv->wpa_ie, 0, sizeof(priv->wpa_ie));
 726                 priv->wpa_ie_len = 0;
 727                 dev_dbg(priv->adapter->dev, "info: reset wpa_ie_len=%d IE=%#x\n",
 728                         priv->wpa_ie_len, priv->wpa_ie[0]);
 729                 priv->sec_info.wpa_enabled = false;
 730                 priv->sec_info.wpa2_enabled = false;
 731         }
 732
 733         return 0;
 734 }
 735
 736 /*
 737  * IOCTL request handler to set/reset WAPI IE.
 738  *
 739  * The supplied WAPI IE is treated as a opaque buffer. Only the first field
 740  * is checked to internally enable WAPI. If buffer length is zero, the existing
 741  * WAPI IE is reset.
 742  */
 743 static int mwifiex_set_wapi_ie(struct mwifiex_private *priv,
 744                                u8 *ie_data_ptr, u16 ie_len)
 745 {
 746         if (ie_len) {
 747                 if (ie_len > sizeof(priv->wapi_ie)) {
 748                         dev_dbg(priv->adapter->dev,
 749                                 "info: failed to copy WAPI IE, too big\n");
 750                         return -1;
 751                 }
 752                 memcpy(priv->wapi_ie, ie_data_ptr, ie_len);
 753                 priv->wapi_ie_len = ie_len;
 754                 dev_dbg(priv->adapter->dev, "cmd: Set wapi_ie_len=%d IE=%#x\n",
 755                         priv->wapi_ie_len, priv->wapi_ie[0]);
 756
 757                 if (priv->wapi_ie[0] == WLAN_EID_BSS_AC_ACCESS_DELAY)
 758                         priv->sec_info.wapi_enabled = true;
 759         } else {
 760                 memset(priv->wapi_ie, 0, sizeof(priv->wapi_ie));
 761                 priv->wapi_ie_len = ie_len;
 762                 dev_dbg(priv->adapter->dev,
 763                         "info: Reset wapi_ie_len=%d IE=%#x\n",
 764                        priv->wapi_ie_len, priv->wapi_ie[0]);
 765                 priv->sec_info.wapi_enabled = false;
 766         }
 767         return 0;
 768 }
 769
 770 /*
 771  * IOCTL request handler to set/reset WPS IE.
 772  *
 773  * The supplied WPS IE is treated as a opaque buffer. Only the first field
 774  * is checked to internally enable WPS. If buffer length is zero, the existing
 775  * WPS IE is reset.
 776  */
 777 static int mwifiex_set_wps_ie(struct mwifiex_private *priv,
 778                                u8 *ie_data_ptr, u16 ie_len)
 779 {
 780         if (ie_len) {
 781                 priv->wps_ie = kzalloc(MWIFIEX_MAX_VSIE_LEN, GFP_KERNEL);
 782                 if (!priv->wps_ie)
 783                         return -ENOMEM;
 784                 if (ie_len > sizeof(priv->wps_ie)) {
 785                         dev_dbg(priv->adapter->dev,
 786                                 "info: failed to copy WPS IE, too big\n");
 787                         kfree(priv->wps_ie);
 788                         return -1;
 789                 }
 790                 memcpy(priv->wps_ie, ie_data_ptr, ie_len);
 791                 priv->wps_ie_len = ie_len;
 792                 dev_dbg(priv->adapter->dev, "cmd: Set wps_ie_len=%d IE=%#x\n",
 793                         priv->wps_ie_len, priv->wps_ie[0]);
 794         } else {
 795                 kfree(priv->wps_ie);
 796                 priv->wps_ie_len = ie_len;
 797                 dev_dbg(priv->adapter->dev,
 798                         "info: Reset wps_ie_len=%d\n", priv->wps_ie_len);
 799         }
 800         return 0;
 801 }
 802
 803 /*
 804  * IOCTL request handler to set WAPI key.
 805  *
 806  * This function prepares the correct firmware command and
 807  * issues it.
 808  */
 809 static int mwifiex_sec_ioctl_set_wapi_key(struct mwifiex_private *priv,
 810                                struct mwifiex_ds_encrypt_key *encrypt_key)
 811 {
 812
 813         return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
 814                                      HostCmd_ACT_GEN_SET, KEY_INFO_ENABLED,
 815                                      encrypt_key);
 816 }
 817
 818 /*
 819  * IOCTL request handler to set WEP network key.
 820  *
 821  * This function prepares the correct firmware command and
 822  * issues it, after validation checks.
 823  */
 824 static int mwifiex_sec_ioctl_set_wep_key(struct mwifiex_private *priv,
 825                               struct mwifiex_ds_encrypt_key *encrypt_key)
 826 {
 827         int ret;
 828         struct mwifiex_wep_key *wep_key;
 829         int index;
 830
 831         if (priv->wep_key_curr_index >= NUM_WEP_KEYS)
 832                 priv->wep_key_curr_index = 0;
 833         wep_key = &priv->wep_key[priv->wep_key_curr_index];
 834         index = encrypt_key->key_index;
 835         if (encrypt_key->key_disable) {
 836                 priv->sec_info.wep_enabled = 0;
 837         } else if (!encrypt_key->key_len) {
 838                 /* Copy the required key as the current key */
 839                 wep_key = &priv->wep_key[index];
 840                 if (!wep_key->key_length) {
 841                         dev_err(priv->adapter->dev,
 842                                 "key not set, so cannot enable it\n");
 843                         return -1;
 844                 }
 845                 priv->wep_key_curr_index = (u16) index;
 846                 priv->sec_info.wep_enabled = 1;
 847         } else {
 848                 wep_key = &priv->wep_key[index];
 849                 memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
 850                 /* Copy the key in the driver */
 851                 memcpy(wep_key->key_material,
 852                        encrypt_key->key_material,
 853                        encrypt_key->key_len);
 854                 wep_key->key_index = index;
 855                 wep_key->key_length = encrypt_key->key_len;
 856                 priv->sec_info.wep_enabled = 1;
 857         }
 858         if (wep_key->key_length) {
 859                 /* Send request to firmware */
 860                 ret = mwifiex_send_cmd_async(priv,
 861                                              HostCmd_CMD_802_11_KEY_MATERIAL,
 862                                              HostCmd_ACT_GEN_SET, 0, NULL);
 863                 if (ret)
 864                         return ret;
 865         }
 866         if (priv->sec_info.wep_enabled)
 867                 priv->curr_pkt_filter |= HostCmd_ACT_MAC_WEP_ENABLE;
 868         else
 869                 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_WEP_ENABLE;
 870
 871         ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_MAC_CONTROL,
 872                                     HostCmd_ACT_GEN_SET, 0,
 873                                     &priv->curr_pkt_filter);
 874
 875         return ret;
 876 }
 877
 878 /*
 879  * IOCTL request handler to set WPA key.
 880  *
 881  * This function prepares the correct firmware command and
 882  * issues it, after validation checks.
 883  *
 884  * Current driver only supports key length of up to 32 bytes.
 885  *
 886  * This function can also be used to disable a currently set key.
 887  */
 888 static int mwifiex_sec_ioctl_set_wpa_key(struct mwifiex_private *priv,
 889                               struct mwifiex_ds_encrypt_key *encrypt_key)
 890 {
 891         int ret;
 892         u8 remove_key = false;
 893         struct host_cmd_ds_802_11_key_material *ibss_key;
 894
 895         /* Current driver only supports key length of up to 32 bytes */
 896         if (encrypt_key->key_len > WLAN_MAX_KEY_LEN) {
 897                 dev_err(priv->adapter->dev, "key length too long\n");
 898                 return -1;
 899         }
 900
 901         if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
 902                 /*
 903                  * IBSS/WPA-None uses only one key (Group) for both receiving
 904                  * and sending unicast and multicast packets.
 905                  */
 906                 /* Send the key as PTK to firmware */
 907                 encrypt_key->key_index = MWIFIEX_KEY_INDEX_UNICAST;
 908                 ret = mwifiex_send_cmd_async(priv,
 909                                              HostCmd_CMD_802_11_KEY_MATERIAL,
 910                                              HostCmd_ACT_GEN_SET,
 911                                              KEY_INFO_ENABLED, encrypt_key);
 912                 if (ret)
 913                         return ret;
 914
 915                 ibss_key = &priv->aes_key;
 916                 memset(ibss_key, 0,
 917                        sizeof(struct host_cmd_ds_802_11_key_material));
 918                 /* Copy the key in the driver */
 919                 memcpy(ibss_key->key_param_set.key, encrypt_key->key_material,
 920                        encrypt_key->key_len);
 921                 memcpy(&ibss_key->key_param_set.key_len, &encrypt_key->key_len,
 922                        sizeof(ibss_key->key_param_set.key_len));
 923                 ibss_key->key_param_set.key_type_id
 924                         = cpu_to_le16(KEY_TYPE_ID_TKIP);
 925                 ibss_key->key_param_set.key_info = cpu_to_le16(KEY_ENABLED);
 926
 927                 /* Send the key as GTK to firmware */
 928                 encrypt_key->key_index = ~MWIFIEX_KEY_INDEX_UNICAST;
 929         }
 930
 931         if (!encrypt_key->key_index)
 932                 encrypt_key->key_index = MWIFIEX_KEY_INDEX_UNICAST;
 933
 934         if (remove_key)
 935                 ret = mwifiex_send_cmd_sync(priv,
 936                                             HostCmd_CMD_802_11_KEY_MATERIAL,
 937                                             HostCmd_ACT_GEN_SET,
 938                                             !KEY_INFO_ENABLED, encrypt_key);
 939         else
 940                 ret = mwifiex_send_cmd_sync(priv,
 941                                             HostCmd_CMD_802_11_KEY_MATERIAL,
 942                                             HostCmd_ACT_GEN_SET,
 943                                             KEY_INFO_ENABLED, encrypt_key);
 944
 945         return ret;
 946 }
 947
 948 /*
 949  * IOCTL request handler to set/get network keys.
 950  *
 951  * This is a generic key handling function which supports WEP, WPA
 952  * and WAPI.
 953  */
 954 static int
 955 mwifiex_sec_ioctl_encrypt_key(struct mwifiex_private *priv,
 956                               struct mwifiex_ds_encrypt_key *encrypt_key)
 957 {
 958         int status;
 959
 960         if (encrypt_key->is_wapi_key)
 961                 status = mwifiex_sec_ioctl_set_wapi_key(priv, encrypt_key);
 962         else if (encrypt_key->key_len > WLAN_KEY_LEN_WEP104)
 963                 status = mwifiex_sec_ioctl_set_wpa_key(priv, encrypt_key);
 964         else
 965                 status = mwifiex_sec_ioctl_set_wep_key(priv, encrypt_key);
 966         return status;
 967 }
 968
 969 /*
 970  * This function returns the driver version.
 971  */
 972 int
 973 mwifiex_drv_get_driver_version(struct mwifiex_adapter *adapter, char *version,
 974                                int max_len)
 975 {
 976         union {
 977                 u32 l;
 978                 u8 c[4];
 979         } ver;
 980         char fw_ver[32];
 981
 982         ver.l = adapter->fw_release_number;
 983         sprintf(fw_ver, "%u.%u.%u.p%u", ver.c[2], ver.c[1], ver.c[0], ver.c[3]);
 984
 985         snprintf(version, max_len, driver_version, fw_ver);
 986
 987         dev_dbg(adapter->dev, "info: MWIFIEX VERSION: %s\n", version);
 988
 989         return 0;
 990 }
 991
 992 /*
 993  * Sends IOCTL request to set encoding parameters.
 994  *
 995  * This function allocates the IOCTL request buffer, fills it
 996  * with requisite parameters and calls the IOCTL handler.
 997  */
 998 int mwifiex_set_encode(struct mwifiex_private *priv, struct key_params *kp,
 999                        const u8 *key, int key_len, u8 key_index,
1000                        const u8 *mac_addr, int disable)
1001 {
1002         struct mwifiex_ds_encrypt_key encrypt_key;
1003
1004         memset(&encrypt_key, 0, sizeof(struct mwifiex_ds_encrypt_key));
1005         encrypt_key.key_len = key_len;
1006
1007         if (kp && kp->cipher == WLAN_CIPHER_SUITE_AES_CMAC)
1008                 encrypt_key.is_igtk_key = true;
1009
1010         if (!disable) {
1011                 encrypt_key.key_index = key_index;
1012                 if (key_len)
1013                         memcpy(encrypt_key.key_material, key, key_len);
1014                 if (mac_addr)
1015                         memcpy(encrypt_key.mac_addr, mac_addr, ETH_ALEN);
1016                 if (kp && kp->seq && kp->seq_len)
1017                         memcpy(encrypt_key.pn, kp->seq, kp->seq_len);
1018         } else {
1019                 encrypt_key.key_disable = true;
1020                 if (mac_addr)
1021                         memcpy(encrypt_key.mac_addr, mac_addr, ETH_ALEN);
1022         }
1023
1024         return mwifiex_sec_ioctl_encrypt_key(priv, &encrypt_key);
1025 }
1026
1027 /*
1028  * Sends IOCTL request to get extended version.
1029  *
1030  * This function allocates the IOCTL request buffer, fills it
1031  * with requisite parameters and calls the IOCTL handler.
1032  */
1033 int
1034 mwifiex_get_ver_ext(struct mwifiex_private *priv)
1035 {
1036         struct mwifiex_ver_ext ver_ext;
1037
1038         memset(&ver_ext, 0, sizeof(struct host_cmd_ds_version_ext));
1039         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_VERSION_EXT,
1040                                   HostCmd_ACT_GEN_GET, 0, &ver_ext))
1041                 return -1;
1042
1043         return 0;
1044 }
1045
1046 int
1047 mwifiex_remain_on_chan_cfg(struct mwifiex_private *priv, u16 action,
1048                            struct ieee80211_channel *chan,
1049                            enum nl80211_channel_type *ct,
1050                            unsigned int duration)
1051 {
1052         struct host_cmd_ds_remain_on_chan roc_cfg;
1053         u8 sc;
1054
1055         memset(&roc_cfg, 0, sizeof(roc_cfg));
1056         roc_cfg.action = cpu_to_le16(action);
1057         if (action == HostCmd_ACT_GEN_SET) {
1058                 roc_cfg.band_cfg = chan->band;
1059                 sc = mwifiex_chan_type_to_sec_chan_offset(*ct);
1060                 roc_cfg.band_cfg |= (sc << 2);
1061
1062                 roc_cfg.channel =
1063                         ieee80211_frequency_to_channel(chan->center_freq);
1064                 roc_cfg.duration = cpu_to_le32(duration);
1065         }
1066         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_REMAIN_ON_CHAN,
1067                                   action, 0, &roc_cfg)) {
1068                 dev_err(priv->adapter->dev, "failed to remain on channel\n");
1069                 return -1;
1070         }
1071
1072         return roc_cfg.status;
1073 }
1074
1075 int
1076 mwifiex_set_bss_role(struct mwifiex_private *priv, u8 bss_role)
1077 {
1078         if (GET_BSS_ROLE(priv) == bss_role) {
1079                 dev_dbg(priv->adapter->dev,
1080                         "info: already in the desired role.\n");
1081                 return 0;
1082         }
1083
1084         mwifiex_free_priv(priv);
1085         mwifiex_init_priv(priv);
1086
1087         priv->bss_role = bss_role;
1088         switch (bss_role) {
1089         case MWIFIEX_BSS_ROLE_UAP:
1090                 priv->bss_mode = NL80211_IFTYPE_AP;
1091                 break;
1092         case MWIFIEX_BSS_ROLE_STA:
1093         case MWIFIEX_BSS_ROLE_ANY:
1094         default:
1095                 priv->bss_mode = NL80211_IFTYPE_STATION;
1096                 break;
1097         }
1098
1099         mwifiex_send_cmd_sync(priv, HostCmd_CMD_SET_BSS_MODE,
1100                               HostCmd_ACT_GEN_SET, 0, NULL);
1101
1102         return mwifiex_sta_init_cmd(priv, false);
1103 }
1104
1105 /*
1106  * Sends IOCTL request to get statistics information.
1107  *
1108  * This function allocates the IOCTL request buffer, fills it
1109  * with requisite parameters and calls the IOCTL handler.
1110  */
1111 int
1112 mwifiex_get_stats_info(struct mwifiex_private *priv,
1113                        struct mwifiex_ds_get_stats *log)
1114 {
1115         return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_GET_LOG,
1116                                      HostCmd_ACT_GEN_GET, 0, log);
1117 }
1118
1119 /*
1120  * IOCTL request handler to read/write register.
1121  *
1122  * This function prepares the correct firmware command and
1123  * issues it.
1124  *
1125  * Access to the following registers are supported -
1126  *      - MAC
1127  *      - BBP
1128  *      - RF
1129  *      - PMIC
1130  *      - CAU
1131  */
1132 static int mwifiex_reg_mem_ioctl_reg_rw(struct mwifiex_private *priv,
1133                                         struct mwifiex_ds_reg_rw *reg_rw,
1134                                         u16 action)
1135 {
1136         u16 cmd_no;
1137
1138         switch (le32_to_cpu(reg_rw->type)) {
1139         case MWIFIEX_REG_MAC:
1140                 cmd_no = HostCmd_CMD_MAC_REG_ACCESS;
1141                 break;
1142         case MWIFIEX_REG_BBP:
1143                 cmd_no = HostCmd_CMD_BBP_REG_ACCESS;
1144                 break;
1145         case MWIFIEX_REG_RF:
1146                 cmd_no = HostCmd_CMD_RF_REG_ACCESS;
1147                 break;
1148         case MWIFIEX_REG_PMIC:
1149                 cmd_no = HostCmd_CMD_PMIC_REG_ACCESS;
1150                 break;
1151         case MWIFIEX_REG_CAU:
1152                 cmd_no = HostCmd_CMD_CAU_REG_ACCESS;
1153                 break;
1154         default:
1155                 return -1;
1156         }
1157
1158         return mwifiex_send_cmd_sync(priv, cmd_no, action, 0, reg_rw);
1159
1160 }
1161
1162 /*
1163  * Sends IOCTL request to write to a register.
1164  *
1165  * This function allocates the IOCTL request buffer, fills it
1166  * with requisite parameters and calls the IOCTL handler.
1167  */
1168 int
1169 mwifiex_reg_write(struct mwifiex_private *priv, u32 reg_type,
1170                   u32 reg_offset, u32 reg_value)
1171 {
1172         struct mwifiex_ds_reg_rw reg_rw;
1173
1174         reg_rw.type = cpu_to_le32(reg_type);
1175         reg_rw.offset = cpu_to_le32(reg_offset);
1176         reg_rw.value = cpu_to_le32(reg_value);
1177
1178         return mwifiex_reg_mem_ioctl_reg_rw(priv, &reg_rw, HostCmd_ACT_GEN_SET);
1179 }
1180
1181 /*
1182  * Sends IOCTL request to read from a register.
1183  *
1184  * This function allocates the IOCTL request buffer, fills it
1185  * with requisite parameters and calls the IOCTL handler.
1186  */
1187 int
1188 mwifiex_reg_read(struct mwifiex_private *priv, u32 reg_type,
1189                  u32 reg_offset, u32 *value)
1190 {
1191         int ret;
1192         struct mwifiex_ds_reg_rw reg_rw;
1193
1194         reg_rw.type = cpu_to_le32(reg_type);
1195         reg_rw.offset = cpu_to_le32(reg_offset);
1196         ret = mwifiex_reg_mem_ioctl_reg_rw(priv, &reg_rw, HostCmd_ACT_GEN_GET);
1197
1198         if (ret)
1199                 goto done;
1200
1201         *value = le32_to_cpu(reg_rw.value);
1202
1203 done:
1204         return ret;
1205 }
1206
1207 /*
1208  * Sends IOCTL request to read from EEPROM.
1209  *
1210  * This function allocates the IOCTL request buffer, fills it
1211  * with requisite parameters and calls the IOCTL handler.
1212  */
1213 int
1214 mwifiex_eeprom_read(struct mwifiex_private *priv, u16 offset, u16 bytes,
1215                     u8 *value)
1216 {
1217         int ret;
1218         struct mwifiex_ds_read_eeprom rd_eeprom;
1219
1220         rd_eeprom.offset = cpu_to_le16((u16) offset);
1221         rd_eeprom.byte_count = cpu_to_le16((u16) bytes);
1222
1223         /* Send request to firmware */
1224         ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_EEPROM_ACCESS,
1225                                     HostCmd_ACT_GEN_GET, 0, &rd_eeprom);
1226
1227         if (!ret)
1228                 memcpy(value, rd_eeprom.value, MAX_EEPROM_DATA);
1229         return ret;
1230 }
1231
1232 /*
1233  * This function sets a generic IE. In addition to generic IE, it can
1234  * also handle WPA, WPA2 and WAPI IEs.
1235  */
1236 static int
1237 mwifiex_set_gen_ie_helper(struct mwifiex_private *priv, u8 *ie_data_ptr,
1238                           u16 ie_len)
1239 {
1240         int ret = 0;
1241         struct ieee_types_vendor_header *pvendor_ie;
1242         const u8 wpa_oui[] = { 0x00, 0x50, 0xf2, 0x01 };
1243         const u8 wps_oui[] = { 0x00, 0x50, 0xf2, 0x04 };
1244
1245         /* If the passed length is zero, reset the buffer */
1246         if (!ie_len) {
1247                 priv->gen_ie_buf_len = 0;
1248                 priv->wps.session_enable = false;
1249
1250                 return 0;
1251         } else if (!ie_data_ptr) {
1252                 return -1;
1253         }
1254         pvendor_ie = (struct ieee_types_vendor_header *) ie_data_ptr;
1255         /* Test to see if it is a WPA IE, if not, then it is a gen IE */
1256         if (((pvendor_ie->element_id == WLAN_EID_WPA) &&
1257              (!memcmp(pvendor_ie->oui, wpa_oui, sizeof(wpa_oui)))) ||
1258             (pvendor_ie->element_id == WLAN_EID_RSN)) {
1259
1260                 /* IE is a WPA/WPA2 IE so call set_wpa function */
1261                 ret = mwifiex_set_wpa_ie_helper(priv, ie_data_ptr, ie_len);
1262                 priv->wps.session_enable = false;
1263
1264                 return ret;
1265         } else if (pvendor_ie->element_id == WLAN_EID_BSS_AC_ACCESS_DELAY) {
1266                 /* IE is a WAPI IE so call set_wapi function */
1267                 ret = mwifiex_set_wapi_ie(priv, ie_data_ptr, ie_len);
1268
1269                 return ret;
1270         }
1271         /*
1272          * Verify that the passed length is not larger than the
1273          * available space remaining in the buffer
1274          */
1275         if (ie_len < (sizeof(priv->gen_ie_buf) - priv->gen_ie_buf_len)) {
1276
1277                 /* Test to see if it is a WPS IE, if so, enable
1278                  * wps session flag
1279                  */
1280                 pvendor_ie = (struct ieee_types_vendor_header *) ie_data_ptr;
1281                 if ((pvendor_ie->element_id == WLAN_EID_VENDOR_SPECIFIC) &&
1282                     (!memcmp(pvendor_ie->oui, wps_oui, sizeof(wps_oui)))) {
1283                         priv->wps.session_enable = true;
1284                         dev_dbg(priv->adapter->dev,
1285                                 "info: WPS Session Enabled.\n");
1286                         ret = mwifiex_set_wps_ie(priv, ie_data_ptr, ie_len);
1287                 }
1288
1289                 /* Append the passed data to the end of the
1290                    genIeBuffer */
1291                 memcpy(priv->gen_ie_buf + priv->gen_ie_buf_len, ie_data_ptr,
1292                        ie_len);
1293                 /* Increment the stored buffer length by the
1294                    size passed */
1295                 priv->gen_ie_buf_len += ie_len;
1296         } else {
1297                 /* Passed data does not fit in the remaining
1298                    buffer space */
1299                 ret = -1;
1300         }
1301
1302         /* Return 0, or -1 for error case */
1303         return ret;
1304 }
1305
1306 /*
1307  * IOCTL request handler to set/get generic IE.
1308  *
1309  * In addition to various generic IEs, this function can also be
1310  * used to set the ARP filter.
1311  */
1312 static int mwifiex_misc_ioctl_gen_ie(struct mwifiex_private *priv,
1313                                      struct mwifiex_ds_misc_gen_ie *gen_ie,
1314                                      u16 action)
1315 {
1316         struct mwifiex_adapter *adapter = priv->adapter;
1317
1318         switch (gen_ie->type) {
1319         case MWIFIEX_IE_TYPE_GEN_IE:
1320                 if (action == HostCmd_ACT_GEN_GET) {
1321                         gen_ie->len = priv->wpa_ie_len;
1322                         memcpy(gen_ie->ie_data, priv->wpa_ie, gen_ie->len);
1323                 } else {
1324                         mwifiex_set_gen_ie_helper(priv, gen_ie->ie_data,
1325                                                   (u16) gen_ie->len);
1326                 }
1327                 break;
1328         case MWIFIEX_IE_TYPE_ARP_FILTER:
1329                 memset(adapter->arp_filter, 0, sizeof(adapter->arp_filter));
1330                 if (gen_ie->len > ARP_FILTER_MAX_BUF_SIZE) {
1331                         adapter->arp_filter_size = 0;
1332                         dev_err(adapter->dev, "invalid ARP filter size\n");
1333                         return -1;
1334                 } else {
1335                         memcpy(adapter->arp_filter, gen_ie->ie_data,
1336                                gen_ie->len);
1337                         adapter->arp_filter_size = gen_ie->len;
1338                 }
1339                 break;
1340         default:
1341                 dev_err(adapter->dev, "invalid IE type\n");
1342                 return -1;
1343         }
1344         return 0;
1345 }
1346
1347 /*
1348  * Sends IOCTL request to set a generic IE.
1349  *
1350  * This function allocates the IOCTL request buffer, fills it
1351  * with requisite parameters and calls the IOCTL handler.
1352  */
1353 int
1354 mwifiex_set_gen_ie(struct mwifiex_private *priv, u8 *ie, int ie_len)
1355 {
1356         struct mwifiex_ds_misc_gen_ie gen_ie;
1357
1358         if (ie_len > IEEE_MAX_IE_SIZE)
1359                 return -EFAULT;
1360
1361         gen_ie.type = MWIFIEX_IE_TYPE_GEN_IE;
1362         gen_ie.len = ie_len;
1363         memcpy(gen_ie.ie_data, ie, ie_len);
1364         if (mwifiex_misc_ioctl_gen_ie(priv, &gen_ie, HostCmd_ACT_GEN_SET))
1365                 return -EFAULT;
1366
1367         return 0;
1368 }