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