linux/drivers/net/wireless/marvell/mwifiex/sta_ioctl.c
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   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
  29static int disconnect_on_suspend;
  30module_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 */
  39int 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 */
  57int 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 */
  88int 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 */
 141int 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
 195void 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
 205static 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 */
 274int 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
 390done:
 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 */
 410int 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 */
 491int 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}
 501EXPORT_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 */
 509int 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}
 571EXPORT_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 */
 579int 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 */
 625int 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}
 634EXPORT_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 */
 642int 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 */
 672int 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 */
 760int 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 */
 787static 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 */
 830static 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 */
 865static 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 */
 899static 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 */
 914static 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
 977done:
 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 */
1000static 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 */
1064static int
1065mwifiex_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 */
1082int
1083mwifiex_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 */
1108int 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 */
1149int
1150mwifiex_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
1163int
1164mwifiex_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 */
1198int
1199mwifiex_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 */
1219static 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 */
1254int
1255mwifiex_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 */
1273int
1274mwifiex_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
1289done:
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 */
1299int
1300mwifiex_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 */
1323static int
1324mwifiex_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
1406next_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 */
1425static 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 */
1467int
1468mwifiex_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 */
1487int 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
1500int 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}
1511