Back to home page

OSCL-LXR
 
 

     

0001 // SPDX-License-Identifier: GPL-2.0-only
0002 /*
0003  * NXP Wireless LAN device driver: functions for station ioctl
0004  *
0005  * Copyright 2011-2020 NXP
0006  */
0007 
0008 #include "decl.h"
0009 #include "ioctl.h"
0010 #include "util.h"
0011 #include "fw.h"
0012 #include "main.h"
0013 #include "wmm.h"
0014 #include "11n.h"
0015 #include "cfg80211.h"
0016 
0017 static int disconnect_on_suspend;
0018 module_param(disconnect_on_suspend, int, 0644);
0019 
0020 /*
0021  * Copies the multicast address list from device to driver.
0022  *
0023  * This function does not validate the destination memory for
0024  * size, and the calling function must ensure enough memory is
0025  * available.
0026  */
0027 int mwifiex_copy_mcast_addr(struct mwifiex_multicast_list *mlist,
0028                 struct net_device *dev)
0029 {
0030     int i = 0;
0031     struct netdev_hw_addr *ha;
0032 
0033     netdev_for_each_mc_addr(ha, dev)
0034         memcpy(&mlist->mac_list[i++], ha->addr, ETH_ALEN);
0035 
0036     return i;
0037 }
0038 
0039 /*
0040  * Wait queue completion handler.
0041  *
0042  * This function waits on a cmd wait queue. It also cancels the pending
0043  * request after waking up, in case of errors.
0044  */
0045 int mwifiex_wait_queue_complete(struct mwifiex_adapter *adapter,
0046                 struct cmd_ctrl_node *cmd_queued)
0047 {
0048     int status;
0049 
0050     /* Wait for completion */
0051     status = wait_event_interruptible_timeout(adapter->cmd_wait_q.wait,
0052                           *(cmd_queued->condition),
0053                           (12 * HZ));
0054     if (status <= 0) {
0055         if (status == 0)
0056             status = -ETIMEDOUT;
0057         mwifiex_dbg(adapter, ERROR, "cmd_wait_q terminated: %d\n",
0058                 status);
0059         mwifiex_cancel_all_pending_cmd(adapter);
0060         return status;
0061     }
0062 
0063     status = adapter->cmd_wait_q.status;
0064     adapter->cmd_wait_q.status = 0;
0065 
0066     return status;
0067 }
0068 
0069 /*
0070  * This function prepares the correct firmware command and
0071  * issues it to set the multicast list.
0072  *
0073  * This function can be used to enable promiscuous mode, or enable all
0074  * multicast packets, or to enable selective multicast.
0075  */
0076 int mwifiex_request_set_multicast_list(struct mwifiex_private *priv,
0077                 struct mwifiex_multicast_list *mcast_list)
0078 {
0079     int ret = 0;
0080     u16 old_pkt_filter;
0081 
0082     old_pkt_filter = priv->curr_pkt_filter;
0083 
0084     if (mcast_list->mode == MWIFIEX_PROMISC_MODE) {
0085         mwifiex_dbg(priv->adapter, INFO,
0086                 "info: Enable Promiscuous mode\n");
0087         priv->curr_pkt_filter |= HostCmd_ACT_MAC_PROMISCUOUS_ENABLE;
0088         priv->curr_pkt_filter &=
0089             ~HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE;
0090     } else {
0091         /* Multicast */
0092         priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_PROMISCUOUS_ENABLE;
0093         if (mcast_list->mode == MWIFIEX_ALL_MULTI_MODE) {
0094             mwifiex_dbg(priv->adapter, INFO,
0095                     "info: Enabling All Multicast!\n");
0096             priv->curr_pkt_filter |=
0097                 HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE;
0098         } else {
0099             priv->curr_pkt_filter &=
0100                 ~HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE;
0101             mwifiex_dbg(priv->adapter, INFO,
0102                     "info: Set multicast list=%d\n",
0103                     mcast_list->num_multicast_addr);
0104             /* Send multicast addresses to firmware */
0105             ret = mwifiex_send_cmd(priv,
0106                            HostCmd_CMD_MAC_MULTICAST_ADR,
0107                            HostCmd_ACT_GEN_SET, 0,
0108                            mcast_list, false);
0109         }
0110     }
0111     mwifiex_dbg(priv->adapter, INFO,
0112             "info: old_pkt_filter=%#x, curr_pkt_filter=%#x\n",
0113             old_pkt_filter, priv->curr_pkt_filter);
0114     if (old_pkt_filter != priv->curr_pkt_filter) {
0115         ret = mwifiex_send_cmd(priv, HostCmd_CMD_MAC_CONTROL,
0116                        HostCmd_ACT_GEN_SET,
0117                        0, &priv->curr_pkt_filter, false);
0118     }
0119 
0120     return ret;
0121 }
0122 
0123 /*
0124  * This function fills bss descriptor structure using provided
0125  * information.
0126  * beacon_ie buffer is allocated in this function. It is caller's
0127  * responsibility to free the memory.
0128  */
0129 int mwifiex_fill_new_bss_desc(struct mwifiex_private *priv,
0130                   struct cfg80211_bss *bss,
0131                   struct mwifiex_bssdescriptor *bss_desc)
0132 {
0133     u8 *beacon_ie;
0134     size_t beacon_ie_len;
0135     struct mwifiex_bss_priv *bss_priv = (void *)bss->priv;
0136     const struct cfg80211_bss_ies *ies;
0137 
0138     rcu_read_lock();
0139     ies = rcu_dereference(bss->ies);
0140     beacon_ie = kmemdup(ies->data, ies->len, GFP_ATOMIC);
0141     beacon_ie_len = ies->len;
0142     bss_desc->timestamp = ies->tsf;
0143     rcu_read_unlock();
0144 
0145     if (!beacon_ie) {
0146         mwifiex_dbg(priv->adapter, ERROR,
0147                 " failed to alloc beacon_ie\n");
0148         return -ENOMEM;
0149     }
0150 
0151     memcpy(bss_desc->mac_address, bss->bssid, ETH_ALEN);
0152     bss_desc->rssi = bss->signal;
0153     /* The caller of this function will free beacon_ie */
0154     bss_desc->beacon_buf = beacon_ie;
0155     bss_desc->beacon_buf_size = beacon_ie_len;
0156     bss_desc->beacon_period = bss->beacon_interval;
0157     bss_desc->cap_info_bitmap = bss->capability;
0158     bss_desc->bss_band = bss_priv->band;
0159     bss_desc->fw_tsf = bss_priv->fw_tsf;
0160     if (bss_desc->cap_info_bitmap & WLAN_CAPABILITY_PRIVACY) {
0161         mwifiex_dbg(priv->adapter, INFO,
0162                 "info: InterpretIE: AP WEP enabled\n");
0163         bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_8021X_WEP;
0164     } else {
0165         bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_ACCEPT_ALL;
0166     }
0167     if (bss_desc->cap_info_bitmap & WLAN_CAPABILITY_IBSS)
0168         bss_desc->bss_mode = NL80211_IFTYPE_ADHOC;
0169     else
0170         bss_desc->bss_mode = NL80211_IFTYPE_STATION;
0171 
0172     /* Disable 11ac by default. Enable it only where there
0173      * exist VHT_CAP IE in AP beacon
0174      */
0175     bss_desc->disable_11ac = true;
0176 
0177     if (bss_desc->cap_info_bitmap & WLAN_CAPABILITY_SPECTRUM_MGMT)
0178         bss_desc->sensed_11h = true;
0179 
0180     return mwifiex_update_bss_desc_with_ie(priv->adapter, bss_desc);
0181 }
0182 
0183 void mwifiex_dnld_txpwr_table(struct mwifiex_private *priv)
0184 {
0185     if (priv->adapter->dt_node) {
0186         char txpwr[] = {"marvell,00_txpwrlimit"};
0187 
0188         memcpy(&txpwr[8], priv->adapter->country_code, 2);
0189         mwifiex_dnld_dt_cfgdata(priv, priv->adapter->dt_node, txpwr);
0190     }
0191 }
0192 
0193 static int mwifiex_process_country_ie(struct mwifiex_private *priv,
0194                       struct cfg80211_bss *bss)
0195 {
0196     const u8 *country_ie;
0197     u8 country_ie_len;
0198     struct mwifiex_802_11d_domain_reg *domain_info =
0199                     &priv->adapter->domain_reg;
0200 
0201     rcu_read_lock();
0202     country_ie = ieee80211_bss_get_ie(bss, WLAN_EID_COUNTRY);
0203     if (!country_ie) {
0204         rcu_read_unlock();
0205         return 0;
0206     }
0207 
0208     country_ie_len = country_ie[1];
0209     if (country_ie_len < IEEE80211_COUNTRY_IE_MIN_LEN) {
0210         rcu_read_unlock();
0211         return 0;
0212     }
0213 
0214     if (!strncmp(priv->adapter->country_code, &country_ie[2], 2)) {
0215         rcu_read_unlock();
0216         mwifiex_dbg(priv->adapter, INFO,
0217                 "11D: skip setting domain info in FW\n");
0218         return 0;
0219     }
0220 
0221     if (country_ie_len >
0222         (IEEE80211_COUNTRY_STRING_LEN + MWIFIEX_MAX_TRIPLET_802_11D)) {
0223         rcu_read_unlock();
0224         mwifiex_dbg(priv->adapter, ERROR,
0225                 "11D: country_ie_len overflow!, deauth AP\n");
0226         return -EINVAL;
0227     }
0228 
0229     memcpy(priv->adapter->country_code, &country_ie[2], 2);
0230 
0231     domain_info->country_code[0] = country_ie[2];
0232     domain_info->country_code[1] = country_ie[3];
0233     domain_info->country_code[2] = ' ';
0234 
0235     country_ie_len -= IEEE80211_COUNTRY_STRING_LEN;
0236 
0237     domain_info->no_of_triplet =
0238         country_ie_len / sizeof(struct ieee80211_country_ie_triplet);
0239 
0240     memcpy((u8 *)domain_info->triplet,
0241            &country_ie[2] + IEEE80211_COUNTRY_STRING_LEN, country_ie_len);
0242 
0243     rcu_read_unlock();
0244 
0245     if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
0246                  HostCmd_ACT_GEN_SET, 0, NULL, false)) {
0247         mwifiex_dbg(priv->adapter, ERROR,
0248                 "11D: setting domain info in FW fail\n");
0249         return -1;
0250     }
0251 
0252     mwifiex_dnld_txpwr_table(priv);
0253 
0254     return 0;
0255 }
0256 
0257 /*
0258  * In Ad-Hoc mode, the IBSS is created if not found in scan list.
0259  * In both Ad-Hoc and infra mode, an deauthentication is performed
0260  * first.
0261  */
0262 int mwifiex_bss_start(struct mwifiex_private *priv, struct cfg80211_bss *bss,
0263               struct cfg80211_ssid *req_ssid)
0264 {
0265     int ret;
0266     struct mwifiex_adapter *adapter = priv->adapter;
0267     struct mwifiex_bssdescriptor *bss_desc = NULL;
0268 
0269     priv->scan_block = false;
0270 
0271     if (bss) {
0272         if (adapter->region_code == 0x00 &&
0273             mwifiex_process_country_ie(priv, bss))
0274             return -EINVAL;
0275 
0276         /* Allocate and fill new bss descriptor */
0277         bss_desc = kzalloc(sizeof(struct mwifiex_bssdescriptor),
0278                    GFP_KERNEL);
0279         if (!bss_desc)
0280             return -ENOMEM;
0281 
0282         ret = mwifiex_fill_new_bss_desc(priv, bss, bss_desc);
0283         if (ret)
0284             goto done;
0285     }
0286 
0287     if (priv->bss_mode == NL80211_IFTYPE_STATION ||
0288         priv->bss_mode == NL80211_IFTYPE_P2P_CLIENT) {
0289         u8 config_bands;
0290 
0291         if (!bss_desc)
0292             return -1;
0293 
0294         if (mwifiex_band_to_radio_type(bss_desc->bss_band) ==
0295                         HostCmd_SCAN_RADIO_TYPE_BG) {
0296             config_bands = BAND_B | BAND_G | BAND_GN;
0297         } else {
0298             config_bands = BAND_A | BAND_AN;
0299             if (adapter->fw_bands & BAND_AAC)
0300                 config_bands |= BAND_AAC;
0301         }
0302 
0303         if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands))
0304             adapter->config_bands = config_bands;
0305 
0306         ret = mwifiex_check_network_compatibility(priv, bss_desc);
0307         if (ret)
0308             goto done;
0309 
0310         if (mwifiex_11h_get_csa_closed_channel(priv) ==
0311                             (u8)bss_desc->channel) {
0312             mwifiex_dbg(adapter, ERROR,
0313                     "Attempt to reconnect on csa closed chan(%d)\n",
0314                     bss_desc->channel);
0315             ret = -1;
0316             goto done;
0317         }
0318 
0319         mwifiex_dbg(adapter, INFO,
0320                 "info: SSID found in scan list ...\t"
0321                 "associating...\n");
0322 
0323         mwifiex_stop_net_dev_queue(priv->netdev, adapter);
0324         if (netif_carrier_ok(priv->netdev))
0325             netif_carrier_off(priv->netdev);
0326 
0327         /* Clear any past association response stored for
0328          * application retrieval */
0329         priv->assoc_rsp_size = 0;
0330         ret = mwifiex_associate(priv, bss_desc);
0331 
0332         /* If auth type is auto and association fails using open mode,
0333          * try to connect using shared mode */
0334         if (ret == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG &&
0335             priv->sec_info.is_authtype_auto &&
0336             priv->sec_info.wep_enabled) {
0337             priv->sec_info.authentication_mode =
0338                         NL80211_AUTHTYPE_SHARED_KEY;
0339             ret = mwifiex_associate(priv, bss_desc);
0340         }
0341 
0342         if (bss)
0343             cfg80211_put_bss(priv->adapter->wiphy, bss);
0344     } else {
0345         /* Adhoc mode */
0346         /* If the requested SSID matches current SSID, return */
0347         if (bss_desc && bss_desc->ssid.ssid_len &&
0348             (!mwifiex_ssid_cmp(&priv->curr_bss_params.bss_descriptor.
0349                        ssid, &bss_desc->ssid))) {
0350             ret = 0;
0351             goto done;
0352         }
0353 
0354         priv->adhoc_is_link_sensed = false;
0355 
0356         ret = mwifiex_check_network_compatibility(priv, bss_desc);
0357 
0358         mwifiex_stop_net_dev_queue(priv->netdev, adapter);
0359         if (netif_carrier_ok(priv->netdev))
0360             netif_carrier_off(priv->netdev);
0361 
0362         if (!ret) {
0363             mwifiex_dbg(adapter, INFO,
0364                     "info: network found in scan\t"
0365                     " list. Joining...\n");
0366             ret = mwifiex_adhoc_join(priv, bss_desc);
0367             if (bss)
0368                 cfg80211_put_bss(priv->adapter->wiphy, bss);
0369         } else {
0370             mwifiex_dbg(adapter, INFO,
0371                     "info: Network not found in\t"
0372                     "the list, creating adhoc with ssid = %s\n",
0373                     req_ssid->ssid);
0374             ret = mwifiex_adhoc_start(priv, req_ssid);
0375         }
0376     }
0377 
0378 done:
0379     /* beacon_ie buffer was allocated in function
0380      * mwifiex_fill_new_bss_desc(). Free it now.
0381      */
0382     if (bss_desc)
0383         kfree(bss_desc->beacon_buf);
0384     kfree(bss_desc);
0385 
0386     if (ret < 0)
0387         priv->attempted_bss_desc = NULL;
0388 
0389     return ret;
0390 }
0391 
0392 /*
0393  * IOCTL request handler to set host sleep configuration.
0394  *
0395  * This function prepares the correct firmware command and
0396  * issues it.
0397  */
0398 int mwifiex_set_hs_params(struct mwifiex_private *priv, u16 action,
0399               int cmd_type, struct mwifiex_ds_hs_cfg *hs_cfg)
0400 
0401 {
0402     struct mwifiex_adapter *adapter = priv->adapter;
0403     int status = 0;
0404     u32 prev_cond = 0;
0405 
0406     if (!hs_cfg)
0407         return -ENOMEM;
0408 
0409     switch (action) {
0410     case HostCmd_ACT_GEN_SET:
0411         if (adapter->pps_uapsd_mode) {
0412             mwifiex_dbg(adapter, INFO,
0413                     "info: Host Sleep IOCTL\t"
0414                     "is blocked in UAPSD/PPS mode\n");
0415             status = -1;
0416             break;
0417         }
0418         if (hs_cfg->is_invoke_hostcmd) {
0419             if (hs_cfg->conditions == HS_CFG_CANCEL) {
0420                 if (!test_bit(MWIFIEX_IS_HS_CONFIGURED,
0421                           &adapter->work_flags))
0422                     /* Already cancelled */
0423                     break;
0424                 /* Save previous condition */
0425                 prev_cond = le32_to_cpu(adapter->hs_cfg
0426                             .conditions);
0427                 adapter->hs_cfg.conditions =
0428                         cpu_to_le32(hs_cfg->conditions);
0429             } else if (hs_cfg->conditions) {
0430                 adapter->hs_cfg.conditions =
0431                         cpu_to_le32(hs_cfg->conditions);
0432                 adapter->hs_cfg.gpio = (u8)hs_cfg->gpio;
0433                 if (hs_cfg->gap)
0434                     adapter->hs_cfg.gap = (u8)hs_cfg->gap;
0435             } else if (adapter->hs_cfg.conditions ==
0436                    cpu_to_le32(HS_CFG_CANCEL)) {
0437                 /* Return failure if no parameters for HS
0438                    enable */
0439                 status = -1;
0440                 break;
0441             }
0442 
0443             status = mwifiex_send_cmd(priv,
0444                           HostCmd_CMD_802_11_HS_CFG_ENH,
0445                           HostCmd_ACT_GEN_SET, 0,
0446                           &adapter->hs_cfg,
0447                           cmd_type == MWIFIEX_SYNC_CMD);
0448 
0449             if (hs_cfg->conditions == HS_CFG_CANCEL)
0450                 /* Restore previous condition */
0451                 adapter->hs_cfg.conditions =
0452                         cpu_to_le32(prev_cond);
0453         } else {
0454             adapter->hs_cfg.conditions =
0455                         cpu_to_le32(hs_cfg->conditions);
0456             adapter->hs_cfg.gpio = (u8)hs_cfg->gpio;
0457             adapter->hs_cfg.gap = (u8)hs_cfg->gap;
0458         }
0459         break;
0460     case HostCmd_ACT_GEN_GET:
0461         hs_cfg->conditions = le32_to_cpu(adapter->hs_cfg.conditions);
0462         hs_cfg->gpio = adapter->hs_cfg.gpio;
0463         hs_cfg->gap = adapter->hs_cfg.gap;
0464         break;
0465     default:
0466         status = -1;
0467         break;
0468     }
0469 
0470     return status;
0471 }
0472 
0473 /*
0474  * Sends IOCTL request to cancel the existing Host Sleep configuration.
0475  *
0476  * This function allocates the IOCTL request buffer, fills it
0477  * with requisite parameters and calls the IOCTL handler.
0478  */
0479 int mwifiex_cancel_hs(struct mwifiex_private *priv, int cmd_type)
0480 {
0481     struct mwifiex_ds_hs_cfg hscfg;
0482 
0483     hscfg.conditions = HS_CFG_CANCEL;
0484     hscfg.is_invoke_hostcmd = true;
0485 
0486     return mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_SET,
0487                     cmd_type, &hscfg);
0488 }
0489 EXPORT_SYMBOL_GPL(mwifiex_cancel_hs);
0490 
0491 /*
0492  * Sends IOCTL request to cancel the existing Host Sleep configuration.
0493  *
0494  * This function allocates the IOCTL request buffer, fills it
0495  * with requisite parameters and calls the IOCTL handler.
0496  */
0497 int mwifiex_enable_hs(struct mwifiex_adapter *adapter)
0498 {
0499     struct mwifiex_ds_hs_cfg hscfg;
0500     struct mwifiex_private *priv;
0501     int i;
0502 
0503     if (disconnect_on_suspend) {
0504         for (i = 0; i < adapter->priv_num; i++) {
0505             priv = adapter->priv[i];
0506             if (priv)
0507                 mwifiex_deauthenticate(priv, NULL);
0508         }
0509     }
0510 
0511     priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
0512 
0513     if (priv && priv->sched_scanning) {
0514 #ifdef CONFIG_PM
0515         if (priv->wdev.wiphy->wowlan_config &&
0516             !priv->wdev.wiphy->wowlan_config->nd_config) {
0517 #endif
0518             mwifiex_dbg(adapter, CMD, "aborting bgscan!\n");
0519             mwifiex_stop_bg_scan(priv);
0520             cfg80211_sched_scan_stopped(priv->wdev.wiphy, 0);
0521 #ifdef CONFIG_PM
0522         }
0523 #endif
0524     }
0525 
0526     if (adapter->hs_activated) {
0527         mwifiex_dbg(adapter, CMD,
0528                 "cmd: HS Already activated\n");
0529         return true;
0530     }
0531 
0532     adapter->hs_activate_wait_q_woken = false;
0533 
0534     memset(&hscfg, 0, sizeof(hscfg));
0535     hscfg.is_invoke_hostcmd = true;
0536 
0537     set_bit(MWIFIEX_IS_HS_ENABLING, &adapter->work_flags);
0538     mwifiex_cancel_all_pending_cmd(adapter);
0539 
0540     if (mwifiex_set_hs_params(mwifiex_get_priv(adapter,
0541                            MWIFIEX_BSS_ROLE_STA),
0542                   HostCmd_ACT_GEN_SET, MWIFIEX_SYNC_CMD,
0543                   &hscfg)) {
0544         mwifiex_dbg(adapter, ERROR,
0545                 "IOCTL request HS enable failed\n");
0546         return false;
0547     }
0548 
0549     if (wait_event_interruptible_timeout(adapter->hs_activate_wait_q,
0550                          adapter->hs_activate_wait_q_woken,
0551                          (10 * HZ)) <= 0) {
0552         mwifiex_dbg(adapter, ERROR,
0553                 "hs_activate_wait_q terminated\n");
0554         return false;
0555     }
0556 
0557     return true;
0558 }
0559 EXPORT_SYMBOL_GPL(mwifiex_enable_hs);
0560 
0561 /*
0562  * IOCTL request handler to get BSS information.
0563  *
0564  * This function collates the information from different driver structures
0565  * to send to the user.
0566  */
0567 int mwifiex_get_bss_info(struct mwifiex_private *priv,
0568              struct mwifiex_bss_info *info)
0569 {
0570     struct mwifiex_adapter *adapter = priv->adapter;
0571     struct mwifiex_bssdescriptor *bss_desc;
0572 
0573     if (!info)
0574         return -1;
0575 
0576     bss_desc = &priv->curr_bss_params.bss_descriptor;
0577 
0578     info->bss_mode = priv->bss_mode;
0579 
0580     memcpy(&info->ssid, &bss_desc->ssid, sizeof(struct cfg80211_ssid));
0581 
0582     memcpy(&info->bssid, &bss_desc->mac_address, ETH_ALEN);
0583 
0584     info->bss_chan = bss_desc->channel;
0585 
0586     memcpy(info->country_code, adapter->country_code,
0587            IEEE80211_COUNTRY_STRING_LEN);
0588 
0589     info->media_connected = priv->media_connected;
0590 
0591     info->max_power_level = priv->max_tx_power_level;
0592     info->min_power_level = priv->min_tx_power_level;
0593 
0594     info->adhoc_state = priv->adhoc_state;
0595 
0596     info->bcn_nf_last = priv->bcn_nf_last;
0597 
0598     if (priv->sec_info.wep_enabled)
0599         info->wep_status = true;
0600     else
0601         info->wep_status = false;
0602 
0603     info->is_hs_configured = test_bit(MWIFIEX_IS_HS_CONFIGURED,
0604                       &adapter->work_flags);
0605     info->is_deep_sleep = adapter->is_deep_sleep;
0606 
0607     return 0;
0608 }
0609 
0610 /*
0611  * The function disables auto deep sleep mode.
0612  */
0613 int mwifiex_disable_auto_ds(struct mwifiex_private *priv)
0614 {
0615     struct mwifiex_ds_auto_ds auto_ds = {
0616         .auto_ds = DEEP_SLEEP_OFF,
0617     };
0618 
0619     return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_PS_MODE_ENH,
0620                 DIS_AUTO_PS, BITMAP_AUTO_DS, &auto_ds, true);
0621 }
0622 EXPORT_SYMBOL_GPL(mwifiex_disable_auto_ds);
0623 
0624 /*
0625  * Sends IOCTL request to get the data rate.
0626  *
0627  * This function allocates the IOCTL request buffer, fills it
0628  * with requisite parameters and calls the IOCTL handler.
0629  */
0630 int mwifiex_drv_get_data_rate(struct mwifiex_private *priv, u32 *rate)
0631 {
0632     int ret;
0633 
0634     ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_TX_RATE_QUERY,
0635                    HostCmd_ACT_GEN_GET, 0, NULL, true);
0636 
0637     if (!ret) {
0638         if (priv->is_data_rate_auto)
0639             *rate = mwifiex_index_to_data_rate(priv, priv->tx_rate,
0640                                priv->tx_htinfo);
0641         else
0642             *rate = priv->data_rate;
0643     }
0644 
0645     return ret;
0646 }
0647 
0648 /*
0649  * IOCTL request handler to set tx power configuration.
0650  *
0651  * This function prepares the correct firmware command and
0652  * issues it.
0653  *
0654  * For non-auto power mode, all the following power groups are set -
0655  *      - Modulation class HR/DSSS
0656  *      - Modulation class OFDM
0657  *      - Modulation class HTBW20
0658  *      - Modulation class HTBW40
0659  */
0660 int mwifiex_set_tx_power(struct mwifiex_private *priv,
0661              struct mwifiex_power_cfg *power_cfg)
0662 {
0663     int ret;
0664     struct host_cmd_ds_txpwr_cfg *txp_cfg;
0665     struct mwifiex_types_power_group *pg_tlv;
0666     struct mwifiex_power_group *pg;
0667     u8 *buf;
0668     u16 dbm = 0;
0669 
0670     if (!power_cfg->is_power_auto) {
0671         dbm = (u16) power_cfg->power_level;
0672         if ((dbm < priv->min_tx_power_level) ||
0673             (dbm > priv->max_tx_power_level)) {
0674             mwifiex_dbg(priv->adapter, ERROR,
0675                     "txpower value %d dBm\t"
0676                     "is out of range (%d dBm-%d dBm)\n",
0677                     dbm, priv->min_tx_power_level,
0678                     priv->max_tx_power_level);
0679             return -1;
0680         }
0681     }
0682     buf = kzalloc(MWIFIEX_SIZE_OF_CMD_BUFFER, GFP_KERNEL);
0683     if (!buf)
0684         return -ENOMEM;
0685 
0686     txp_cfg = (struct host_cmd_ds_txpwr_cfg *) buf;
0687     txp_cfg->action = cpu_to_le16(HostCmd_ACT_GEN_SET);
0688     if (!power_cfg->is_power_auto) {
0689         u16 dbm_min = power_cfg->is_power_fixed ?
0690                   dbm : priv->min_tx_power_level;
0691 
0692         txp_cfg->mode = cpu_to_le32(1);
0693         pg_tlv = (struct mwifiex_types_power_group *)
0694              (buf + sizeof(struct host_cmd_ds_txpwr_cfg));
0695         pg_tlv->type = cpu_to_le16(TLV_TYPE_POWER_GROUP);
0696         pg_tlv->length =
0697             cpu_to_le16(4 * sizeof(struct mwifiex_power_group));
0698         pg = (struct mwifiex_power_group *)
0699              (buf + sizeof(struct host_cmd_ds_txpwr_cfg)
0700               + sizeof(struct mwifiex_types_power_group));
0701         /* Power group for modulation class HR/DSSS */
0702         pg->first_rate_code = 0x00;
0703         pg->last_rate_code = 0x03;
0704         pg->modulation_class = MOD_CLASS_HR_DSSS;
0705         pg->power_step = 0;
0706         pg->power_min = (s8) dbm_min;
0707         pg->power_max = (s8) dbm;
0708         pg++;
0709         /* Power group for modulation class OFDM */
0710         pg->first_rate_code = 0x00;
0711         pg->last_rate_code = 0x07;
0712         pg->modulation_class = MOD_CLASS_OFDM;
0713         pg->power_step = 0;
0714         pg->power_min = (s8) dbm_min;
0715         pg->power_max = (s8) dbm;
0716         pg++;
0717         /* Power group for modulation class HTBW20 */
0718         pg->first_rate_code = 0x00;
0719         pg->last_rate_code = 0x20;
0720         pg->modulation_class = MOD_CLASS_HT;
0721         pg->power_step = 0;
0722         pg->power_min = (s8) dbm_min;
0723         pg->power_max = (s8) dbm;
0724         pg->ht_bandwidth = HT_BW_20;
0725         pg++;
0726         /* Power group for modulation class HTBW40 */
0727         pg->first_rate_code = 0x00;
0728         pg->last_rate_code = 0x20;
0729         pg->modulation_class = MOD_CLASS_HT;
0730         pg->power_step = 0;
0731         pg->power_min = (s8) dbm_min;
0732         pg->power_max = (s8) dbm;
0733         pg->ht_bandwidth = HT_BW_40;
0734     }
0735     ret = mwifiex_send_cmd(priv, HostCmd_CMD_TXPWR_CFG,
0736                    HostCmd_ACT_GEN_SET, 0, buf, true);
0737 
0738     kfree(buf);
0739     return ret;
0740 }
0741 
0742 /*
0743  * IOCTL request handler to get power save mode.
0744  *
0745  * This function prepares the correct firmware command and
0746  * issues it.
0747  */
0748 int mwifiex_drv_set_power(struct mwifiex_private *priv, u32 *ps_mode)
0749 {
0750     int ret;
0751     struct mwifiex_adapter *adapter = priv->adapter;
0752     u16 sub_cmd;
0753 
0754     if (*ps_mode)
0755         adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_PSP;
0756     else
0757         adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_CAM;
0758     sub_cmd = (*ps_mode) ? EN_AUTO_PS : DIS_AUTO_PS;
0759     ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_PS_MODE_ENH,
0760                    sub_cmd, BITMAP_STA_PS, NULL, true);
0761     if ((!ret) && (sub_cmd == DIS_AUTO_PS))
0762         ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_PS_MODE_ENH,
0763                        GET_PS, 0, NULL, false);
0764 
0765     return ret;
0766 }
0767 
0768 /*
0769  * IOCTL request handler to set/reset WPA IE.
0770  *
0771  * The supplied WPA IE is treated as a opaque buffer. Only the first field
0772  * is checked to determine WPA version. If buffer length is zero, the existing
0773  * WPA IE is reset.
0774  */
0775 static int mwifiex_set_wpa_ie(struct mwifiex_private *priv,
0776                   u8 *ie_data_ptr, u16 ie_len)
0777 {
0778     if (ie_len) {
0779         if (ie_len > sizeof(priv->wpa_ie)) {
0780             mwifiex_dbg(priv->adapter, ERROR,
0781                     "failed to copy WPA IE, too big\n");
0782             return -1;
0783         }
0784         memcpy(priv->wpa_ie, ie_data_ptr, ie_len);
0785         priv->wpa_ie_len = ie_len;
0786         mwifiex_dbg(priv->adapter, CMD,
0787                 "cmd: Set Wpa_ie_len=%d IE=%#x\n",
0788                 priv->wpa_ie_len, priv->wpa_ie[0]);
0789 
0790         if (priv->wpa_ie[0] == WLAN_EID_VENDOR_SPECIFIC) {
0791             priv->sec_info.wpa_enabled = true;
0792         } else if (priv->wpa_ie[0] == WLAN_EID_RSN) {
0793             priv->sec_info.wpa2_enabled = true;
0794         } else {
0795             priv->sec_info.wpa_enabled = false;
0796             priv->sec_info.wpa2_enabled = false;
0797         }
0798     } else {
0799         memset(priv->wpa_ie, 0, sizeof(priv->wpa_ie));
0800         priv->wpa_ie_len = 0;
0801         mwifiex_dbg(priv->adapter, INFO,
0802                 "info: reset wpa_ie_len=%d IE=%#x\n",
0803                 priv->wpa_ie_len, priv->wpa_ie[0]);
0804         priv->sec_info.wpa_enabled = false;
0805         priv->sec_info.wpa2_enabled = false;
0806     }
0807 
0808     return 0;
0809 }
0810 
0811 /*
0812  * IOCTL request handler to set/reset WAPI IE.
0813  *
0814  * The supplied WAPI IE is treated as a opaque buffer. Only the first field
0815  * is checked to internally enable WAPI. If buffer length is zero, the existing
0816  * WAPI IE is reset.
0817  */
0818 static int mwifiex_set_wapi_ie(struct mwifiex_private *priv,
0819                    u8 *ie_data_ptr, u16 ie_len)
0820 {
0821     if (ie_len) {
0822         if (ie_len > sizeof(priv->wapi_ie)) {
0823             mwifiex_dbg(priv->adapter, ERROR,
0824                     "info: failed to copy WAPI IE, too big\n");
0825             return -1;
0826         }
0827         memcpy(priv->wapi_ie, ie_data_ptr, ie_len);
0828         priv->wapi_ie_len = ie_len;
0829         mwifiex_dbg(priv->adapter, CMD,
0830                 "cmd: Set wapi_ie_len=%d IE=%#x\n",
0831                 priv->wapi_ie_len, priv->wapi_ie[0]);
0832 
0833         if (priv->wapi_ie[0] == WLAN_EID_BSS_AC_ACCESS_DELAY)
0834             priv->sec_info.wapi_enabled = true;
0835     } else {
0836         memset(priv->wapi_ie, 0, sizeof(priv->wapi_ie));
0837         priv->wapi_ie_len = ie_len;
0838         mwifiex_dbg(priv->adapter, INFO,
0839                 "info: Reset wapi_ie_len=%d IE=%#x\n",
0840                 priv->wapi_ie_len, priv->wapi_ie[0]);
0841         priv->sec_info.wapi_enabled = false;
0842     }
0843     return 0;
0844 }
0845 
0846 /*
0847  * IOCTL request handler to set/reset WPS IE.
0848  *
0849  * The supplied WPS IE is treated as a opaque buffer. Only the first field
0850  * is checked to internally enable WPS. If buffer length is zero, the existing
0851  * WPS IE is reset.
0852  */
0853 static int mwifiex_set_wps_ie(struct mwifiex_private *priv,
0854                    u8 *ie_data_ptr, u16 ie_len)
0855 {
0856     if (ie_len) {
0857         if (ie_len > MWIFIEX_MAX_VSIE_LEN) {
0858             mwifiex_dbg(priv->adapter, ERROR,
0859                     "info: failed to copy WPS IE, too big\n");
0860             return -1;
0861         }
0862 
0863         priv->wps_ie = kzalloc(MWIFIEX_MAX_VSIE_LEN, GFP_KERNEL);
0864         if (!priv->wps_ie)
0865             return -ENOMEM;
0866 
0867         memcpy(priv->wps_ie, ie_data_ptr, ie_len);
0868         priv->wps_ie_len = ie_len;
0869         mwifiex_dbg(priv->adapter, CMD,
0870                 "cmd: Set wps_ie_len=%d IE=%#x\n",
0871                 priv->wps_ie_len, priv->wps_ie[0]);
0872     } else {
0873         kfree(priv->wps_ie);
0874         priv->wps_ie_len = ie_len;
0875         mwifiex_dbg(priv->adapter, INFO,
0876                 "info: Reset wps_ie_len=%d\n", priv->wps_ie_len);
0877     }
0878     return 0;
0879 }
0880 
0881 /*
0882  * IOCTL request handler to set WAPI key.
0883  *
0884  * This function prepares the correct firmware command and
0885  * issues it.
0886  */
0887 static int mwifiex_sec_ioctl_set_wapi_key(struct mwifiex_private *priv,
0888                    struct mwifiex_ds_encrypt_key *encrypt_key)
0889 {
0890 
0891     return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
0892                 HostCmd_ACT_GEN_SET, KEY_INFO_ENABLED,
0893                 encrypt_key, true);
0894 }
0895 
0896 /*
0897  * IOCTL request handler to set WEP network key.
0898  *
0899  * This function prepares the correct firmware command and
0900  * issues it, after validation checks.
0901  */
0902 static int mwifiex_sec_ioctl_set_wep_key(struct mwifiex_private *priv,
0903                   struct mwifiex_ds_encrypt_key *encrypt_key)
0904 {
0905     struct mwifiex_adapter *adapter = priv->adapter;
0906     int ret;
0907     struct mwifiex_wep_key *wep_key;
0908     int index;
0909 
0910     if (priv->wep_key_curr_index >= NUM_WEP_KEYS)
0911         priv->wep_key_curr_index = 0;
0912     wep_key = &priv->wep_key[priv->wep_key_curr_index];
0913     index = encrypt_key->key_index;
0914     if (encrypt_key->key_disable) {
0915         priv->sec_info.wep_enabled = 0;
0916     } else if (!encrypt_key->key_len) {
0917         /* Copy the required key as the current key */
0918         wep_key = &priv->wep_key[index];
0919         if (!wep_key->key_length) {
0920             mwifiex_dbg(adapter, ERROR,
0921                     "key not set, so cannot enable it\n");
0922             return -1;
0923         }
0924 
0925         if (adapter->key_api_major_ver == KEY_API_VER_MAJOR_V2) {
0926             memcpy(encrypt_key->key_material,
0927                    wep_key->key_material, wep_key->key_length);
0928             encrypt_key->key_len = wep_key->key_length;
0929         }
0930 
0931         priv->wep_key_curr_index = (u16) index;
0932         priv->sec_info.wep_enabled = 1;
0933     } else {
0934         wep_key = &priv->wep_key[index];
0935         memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
0936         /* Copy the key in the driver */
0937         memcpy(wep_key->key_material,
0938                encrypt_key->key_material,
0939                encrypt_key->key_len);
0940         wep_key->key_index = index;
0941         wep_key->key_length = encrypt_key->key_len;
0942         priv->sec_info.wep_enabled = 1;
0943     }
0944     if (wep_key->key_length) {
0945         void *enc_key;
0946 
0947         if (encrypt_key->key_disable) {
0948             memset(&priv->wep_key[index], 0,
0949                    sizeof(struct mwifiex_wep_key));
0950             goto done;
0951         }
0952 
0953         if (adapter->key_api_major_ver == KEY_API_VER_MAJOR_V2)
0954             enc_key = encrypt_key;
0955         else
0956             enc_key = NULL;
0957 
0958         /* Send request to firmware */
0959         ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
0960                        HostCmd_ACT_GEN_SET, 0, enc_key, false);
0961         if (ret)
0962             return ret;
0963     }
0964 
0965 done:
0966     if (priv->sec_info.wep_enabled)
0967         priv->curr_pkt_filter |= HostCmd_ACT_MAC_WEP_ENABLE;
0968     else
0969         priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_WEP_ENABLE;
0970 
0971     ret = mwifiex_send_cmd(priv, HostCmd_CMD_MAC_CONTROL,
0972                    HostCmd_ACT_GEN_SET, 0,
0973                    &priv->curr_pkt_filter, true);
0974 
0975     return ret;
0976 }
0977 
0978 /*
0979  * IOCTL request handler to set WPA key.
0980  *
0981  * This function prepares the correct firmware command and
0982  * issues it, after validation checks.
0983  *
0984  * Current driver only supports key length of up to 32 bytes.
0985  *
0986  * This function can also be used to disable a currently set key.
0987  */
0988 static int mwifiex_sec_ioctl_set_wpa_key(struct mwifiex_private *priv,
0989                   struct mwifiex_ds_encrypt_key *encrypt_key)
0990 {
0991     int ret;
0992     u8 remove_key = false;
0993     struct host_cmd_ds_802_11_key_material *ibss_key;
0994 
0995     /* Current driver only supports key length of up to 32 bytes */
0996     if (encrypt_key->key_len > WLAN_MAX_KEY_LEN) {
0997         mwifiex_dbg(priv->adapter, ERROR,
0998                 "key length too long\n");
0999         return -1;
1000     }
1001 
1002     if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
1003         /*
1004          * IBSS/WPA-None uses only one key (Group) for both receiving
1005          * and sending unicast and multicast packets.
1006          */
1007         /* Send the key as PTK to firmware */
1008         encrypt_key->key_index = MWIFIEX_KEY_INDEX_UNICAST;
1009         ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
1010                        HostCmd_ACT_GEN_SET,
1011                        KEY_INFO_ENABLED, encrypt_key, false);
1012         if (ret)
1013             return ret;
1014 
1015         ibss_key = &priv->aes_key;
1016         memset(ibss_key, 0,
1017                sizeof(struct host_cmd_ds_802_11_key_material));
1018         /* Copy the key in the driver */
1019         memcpy(ibss_key->key_param_set.key, encrypt_key->key_material,
1020                encrypt_key->key_len);
1021         memcpy(&ibss_key->key_param_set.key_len, &encrypt_key->key_len,
1022                sizeof(ibss_key->key_param_set.key_len));
1023         ibss_key->key_param_set.key_type_id
1024             = cpu_to_le16(KEY_TYPE_ID_TKIP);
1025         ibss_key->key_param_set.key_info = cpu_to_le16(KEY_ENABLED);
1026 
1027         /* Send the key as GTK to firmware */
1028         encrypt_key->key_index = ~MWIFIEX_KEY_INDEX_UNICAST;
1029     }
1030 
1031     if (!encrypt_key->key_index)
1032         encrypt_key->key_index = MWIFIEX_KEY_INDEX_UNICAST;
1033 
1034     if (remove_key)
1035         ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
1036                        HostCmd_ACT_GEN_SET,
1037                        !KEY_INFO_ENABLED, encrypt_key, true);
1038     else
1039         ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
1040                        HostCmd_ACT_GEN_SET,
1041                        KEY_INFO_ENABLED, encrypt_key, true);
1042 
1043     return ret;
1044 }
1045 
1046 /*
1047  * IOCTL request handler to set/get network keys.
1048  *
1049  * This is a generic key handling function which supports WEP, WPA
1050  * and WAPI.
1051  */
1052 static int
1053 mwifiex_sec_ioctl_encrypt_key(struct mwifiex_private *priv,
1054                   struct mwifiex_ds_encrypt_key *encrypt_key)
1055 {
1056     int status;
1057 
1058     if (encrypt_key->is_wapi_key)
1059         status = mwifiex_sec_ioctl_set_wapi_key(priv, encrypt_key);
1060     else if (encrypt_key->key_len > WLAN_KEY_LEN_WEP104)
1061         status = mwifiex_sec_ioctl_set_wpa_key(priv, encrypt_key);
1062     else
1063         status = mwifiex_sec_ioctl_set_wep_key(priv, encrypt_key);
1064     return status;
1065 }
1066 
1067 /*
1068  * This function returns the driver version.
1069  */
1070 int
1071 mwifiex_drv_get_driver_version(struct mwifiex_adapter *adapter, char *version,
1072                    int max_len)
1073 {
1074     union {
1075         __le32 l;
1076         u8 c[4];
1077     } ver;
1078     char fw_ver[32];
1079 
1080     ver.l = cpu_to_le32(adapter->fw_release_number);
1081     sprintf(fw_ver, "%u.%u.%u.p%u", ver.c[2], ver.c[1], ver.c[0], ver.c[3]);
1082 
1083     snprintf(version, max_len, driver_version, fw_ver);
1084 
1085     mwifiex_dbg(adapter, MSG, "info: MWIFIEX VERSION: %s\n", version);
1086 
1087     return 0;
1088 }
1089 
1090 /*
1091  * Sends IOCTL request to set encoding parameters.
1092  *
1093  * This function allocates the IOCTL request buffer, fills it
1094  * with requisite parameters and calls the IOCTL handler.
1095  */
1096 int mwifiex_set_encode(struct mwifiex_private *priv, struct key_params *kp,
1097                const u8 *key, int key_len, u8 key_index,
1098                const u8 *mac_addr, int disable)
1099 {
1100     struct mwifiex_ds_encrypt_key encrypt_key;
1101 
1102     memset(&encrypt_key, 0, sizeof(encrypt_key));
1103     encrypt_key.key_len = key_len;
1104     encrypt_key.key_index = key_index;
1105 
1106     if (kp && kp->cipher == WLAN_CIPHER_SUITE_AES_CMAC)
1107         encrypt_key.is_igtk_key = true;
1108 
1109     if (!disable) {
1110         if (key_len)
1111             memcpy(encrypt_key.key_material, key, key_len);
1112         else
1113             encrypt_key.is_current_wep_key = true;
1114 
1115         if (mac_addr)
1116             memcpy(encrypt_key.mac_addr, mac_addr, ETH_ALEN);
1117         if (kp && kp->seq && kp->seq_len) {
1118             memcpy(encrypt_key.pn, kp->seq, kp->seq_len);
1119             encrypt_key.pn_len = kp->seq_len;
1120             encrypt_key.is_rx_seq_valid = true;
1121         }
1122     } else {
1123         encrypt_key.key_disable = true;
1124         if (mac_addr)
1125             memcpy(encrypt_key.mac_addr, mac_addr, ETH_ALEN);
1126     }
1127 
1128     return mwifiex_sec_ioctl_encrypt_key(priv, &encrypt_key);
1129 }
1130 
1131 /*
1132  * Sends IOCTL request to get extended version.
1133  *
1134  * This function allocates the IOCTL request buffer, fills it
1135  * with requisite parameters and calls the IOCTL handler.
1136  */
1137 int
1138 mwifiex_get_ver_ext(struct mwifiex_private *priv, u32 version_str_sel)
1139 {
1140     struct mwifiex_ver_ext ver_ext;
1141 
1142     memset(&ver_ext, 0, sizeof(ver_ext));
1143     ver_ext.version_str_sel = version_str_sel;
1144     if (mwifiex_send_cmd(priv, HostCmd_CMD_VERSION_EXT,
1145                  HostCmd_ACT_GEN_GET, 0, &ver_ext, true))
1146         return -1;
1147 
1148     return 0;
1149 }
1150 
1151 int
1152 mwifiex_remain_on_chan_cfg(struct mwifiex_private *priv, u16 action,
1153                struct ieee80211_channel *chan,
1154                unsigned int duration)
1155 {
1156     struct host_cmd_ds_remain_on_chan roc_cfg;
1157     u8 sc;
1158 
1159     memset(&roc_cfg, 0, sizeof(roc_cfg));
1160     roc_cfg.action = cpu_to_le16(action);
1161     if (action == HostCmd_ACT_GEN_SET) {
1162         roc_cfg.band_cfg = chan->band;
1163         sc = mwifiex_chan_type_to_sec_chan_offset(NL80211_CHAN_NO_HT);
1164         roc_cfg.band_cfg |= (sc << 2);
1165 
1166         roc_cfg.channel =
1167             ieee80211_frequency_to_channel(chan->center_freq);
1168         roc_cfg.duration = cpu_to_le32(duration);
1169     }
1170     if (mwifiex_send_cmd(priv, HostCmd_CMD_REMAIN_ON_CHAN,
1171                  action, 0, &roc_cfg, true)) {
1172         mwifiex_dbg(priv->adapter, ERROR,
1173                 "failed to remain on channel\n");
1174         return -1;
1175     }
1176 
1177     return roc_cfg.status;
1178 }
1179 
1180 /*
1181  * Sends IOCTL request to get statistics information.
1182  *
1183  * This function allocates the IOCTL request buffer, fills it
1184  * with requisite parameters and calls the IOCTL handler.
1185  */
1186 int
1187 mwifiex_get_stats_info(struct mwifiex_private *priv,
1188                struct mwifiex_ds_get_stats *log)
1189 {
1190     return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_GET_LOG,
1191                 HostCmd_ACT_GEN_GET, 0, log, true);
1192 }
1193 
1194 /*
1195  * IOCTL request handler to read/write register.
1196  *
1197  * This function prepares the correct firmware command and
1198  * issues it.
1199  *
1200  * Access to the following registers are supported -
1201  *      - MAC
1202  *      - BBP
1203  *      - RF
1204  *      - PMIC
1205  *      - CAU
1206  */
1207 static int mwifiex_reg_mem_ioctl_reg_rw(struct mwifiex_private *priv,
1208                     struct mwifiex_ds_reg_rw *reg_rw,
1209                     u16 action)
1210 {
1211     u16 cmd_no;
1212 
1213     switch (reg_rw->type) {
1214     case MWIFIEX_REG_MAC:
1215         cmd_no = HostCmd_CMD_MAC_REG_ACCESS;
1216         break;
1217     case MWIFIEX_REG_BBP:
1218         cmd_no = HostCmd_CMD_BBP_REG_ACCESS;
1219         break;
1220     case MWIFIEX_REG_RF:
1221         cmd_no = HostCmd_CMD_RF_REG_ACCESS;
1222         break;
1223     case MWIFIEX_REG_PMIC:
1224         cmd_no = HostCmd_CMD_PMIC_REG_ACCESS;
1225         break;
1226     case MWIFIEX_REG_CAU:
1227         cmd_no = HostCmd_CMD_CAU_REG_ACCESS;
1228         break;
1229     default:
1230         return -1;
1231     }
1232 
1233     return mwifiex_send_cmd(priv, cmd_no, action, 0, reg_rw, true);
1234 }
1235 
1236 /*
1237  * Sends IOCTL request to write to a register.
1238  *
1239  * This function allocates the IOCTL request buffer, fills it
1240  * with requisite parameters and calls the IOCTL handler.
1241  */
1242 int
1243 mwifiex_reg_write(struct mwifiex_private *priv, u32 reg_type,
1244           u32 reg_offset, u32 reg_value)
1245 {
1246     struct mwifiex_ds_reg_rw reg_rw;
1247 
1248     reg_rw.type = reg_type;
1249     reg_rw.offset = reg_offset;
1250     reg_rw.value = reg_value;
1251 
1252     return mwifiex_reg_mem_ioctl_reg_rw(priv, &reg_rw, HostCmd_ACT_GEN_SET);
1253 }
1254 
1255 /*
1256  * Sends IOCTL request to read from a register.
1257  *
1258  * This function allocates the IOCTL request buffer, fills it
1259  * with requisite parameters and calls the IOCTL handler.
1260  */
1261 int
1262 mwifiex_reg_read(struct mwifiex_private *priv, u32 reg_type,
1263          u32 reg_offset, u32 *value)
1264 {
1265     int ret;
1266     struct mwifiex_ds_reg_rw reg_rw;
1267 
1268     reg_rw.type = reg_type;
1269     reg_rw.offset = reg_offset;
1270     ret = mwifiex_reg_mem_ioctl_reg_rw(priv, &reg_rw, HostCmd_ACT_GEN_GET);
1271 
1272     if (ret)
1273         goto done;
1274 
1275     *value = reg_rw.value;
1276 
1277 done:
1278     return ret;
1279 }
1280 
1281 /*
1282  * Sends IOCTL request to read from EEPROM.
1283  *
1284  * This function allocates the IOCTL request buffer, fills it
1285  * with requisite parameters and calls the IOCTL handler.
1286  */
1287 int
1288 mwifiex_eeprom_read(struct mwifiex_private *priv, u16 offset, u16 bytes,
1289             u8 *value)
1290 {
1291     int ret;
1292     struct mwifiex_ds_read_eeprom rd_eeprom;
1293 
1294     rd_eeprom.offset =  offset;
1295     rd_eeprom.byte_count = bytes;
1296 
1297     /* Send request to firmware */
1298     ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_EEPROM_ACCESS,
1299                    HostCmd_ACT_GEN_GET, 0, &rd_eeprom, true);
1300 
1301     if (!ret)
1302         memcpy(value, rd_eeprom.value, min((u16)MAX_EEPROM_DATA,
1303                rd_eeprom.byte_count));
1304     return ret;
1305 }
1306 
1307 /*
1308  * This function sets a generic IE. In addition to generic IE, it can
1309  * also handle WPA, WPA2 and WAPI IEs.
1310  */
1311 static int
1312 mwifiex_set_gen_ie_helper(struct mwifiex_private *priv, u8 *ie_data_ptr,
1313               u16 ie_len)
1314 {
1315     struct ieee_types_vendor_header *pvendor_ie;
1316     static const u8 wpa_oui[] = { 0x00, 0x50, 0xf2, 0x01 };
1317     static const u8 wps_oui[] = { 0x00, 0x50, 0xf2, 0x04 };
1318     u16 unparsed_len = ie_len, cur_ie_len;
1319 
1320     /* If the passed length is zero, reset the buffer */
1321     if (!ie_len) {
1322         priv->gen_ie_buf_len = 0;
1323         priv->wps.session_enable = false;
1324         return 0;
1325     } else if (!ie_data_ptr ||
1326            ie_len <= sizeof(struct ieee_types_header)) {
1327         return -1;
1328     }
1329     pvendor_ie = (struct ieee_types_vendor_header *) ie_data_ptr;
1330 
1331     while (pvendor_ie) {
1332         cur_ie_len = pvendor_ie->len + sizeof(struct ieee_types_header);
1333 
1334         if (pvendor_ie->element_id == WLAN_EID_RSN) {
1335             /* IE is a WPA/WPA2 IE so call set_wpa function */
1336             mwifiex_set_wpa_ie(priv, (u8 *)pvendor_ie, cur_ie_len);
1337             priv->wps.session_enable = false;
1338             goto next_ie;
1339         }
1340 
1341         if (pvendor_ie->element_id == WLAN_EID_BSS_AC_ACCESS_DELAY) {
1342             /* IE is a WAPI IE so call set_wapi function */
1343             mwifiex_set_wapi_ie(priv, (u8 *)pvendor_ie,
1344                         cur_ie_len);
1345             goto next_ie;
1346         }
1347 
1348         if (pvendor_ie->element_id == WLAN_EID_VENDOR_SPECIFIC) {
1349             /* Test to see if it is a WPA IE, if not, then
1350              * it is a gen IE
1351              */
1352             if (!memcmp(&pvendor_ie->oui, wpa_oui,
1353                     sizeof(wpa_oui))) {
1354                 /* IE is a WPA/WPA2 IE so call set_wpa function
1355                  */
1356                 mwifiex_set_wpa_ie(priv, (u8 *)pvendor_ie,
1357                            cur_ie_len);
1358                 priv->wps.session_enable = false;
1359                 goto next_ie;
1360             }
1361 
1362             if (!memcmp(&pvendor_ie->oui, wps_oui,
1363                     sizeof(wps_oui))) {
1364                 /* Test to see if it is a WPS IE,
1365                  * if so, enable wps session flag
1366                  */
1367                 priv->wps.session_enable = true;
1368                 mwifiex_dbg(priv->adapter, MSG,
1369                         "WPS Session Enabled.\n");
1370                 mwifiex_set_wps_ie(priv, (u8 *)pvendor_ie,
1371                            cur_ie_len);
1372                 goto next_ie;
1373             }
1374         }
1375 
1376         /* Saved in gen_ie, such as P2P IE.etc.*/
1377 
1378         /* Verify that the passed length is not larger than the
1379          * available space remaining in the buffer
1380          */
1381         if (cur_ie_len <
1382             (sizeof(priv->gen_ie_buf) - priv->gen_ie_buf_len)) {
1383             /* Append the passed data to the end
1384              * of the genIeBuffer
1385              */
1386             memcpy(priv->gen_ie_buf + priv->gen_ie_buf_len,
1387                    (u8 *)pvendor_ie, cur_ie_len);
1388             /* Increment the stored buffer length by the
1389              * size passed
1390              */
1391             priv->gen_ie_buf_len += cur_ie_len;
1392         }
1393 
1394 next_ie:
1395         unparsed_len -= cur_ie_len;
1396 
1397         if (unparsed_len <= sizeof(struct ieee_types_header))
1398             pvendor_ie = NULL;
1399         else
1400             pvendor_ie = (struct ieee_types_vendor_header *)
1401                 (((u8 *)pvendor_ie) + cur_ie_len);
1402     }
1403 
1404     return 0;
1405 }
1406 
1407 /*
1408  * IOCTL request handler to set/get generic IE.
1409  *
1410  * In addition to various generic IEs, this function can also be
1411  * used to set the ARP filter.
1412  */
1413 static int mwifiex_misc_ioctl_gen_ie(struct mwifiex_private *priv,
1414                      struct mwifiex_ds_misc_gen_ie *gen_ie,
1415                      u16 action)
1416 {
1417     struct mwifiex_adapter *adapter = priv->adapter;
1418 
1419     switch (gen_ie->type) {
1420     case MWIFIEX_IE_TYPE_GEN_IE:
1421         if (action == HostCmd_ACT_GEN_GET) {
1422             gen_ie->len = priv->wpa_ie_len;
1423             memcpy(gen_ie->ie_data, priv->wpa_ie, gen_ie->len);
1424         } else {
1425             mwifiex_set_gen_ie_helper(priv, gen_ie->ie_data,
1426                           (u16) gen_ie->len);
1427         }
1428         break;
1429     case MWIFIEX_IE_TYPE_ARP_FILTER:
1430         memset(adapter->arp_filter, 0, sizeof(adapter->arp_filter));
1431         if (gen_ie->len > ARP_FILTER_MAX_BUF_SIZE) {
1432             adapter->arp_filter_size = 0;
1433             mwifiex_dbg(adapter, ERROR,
1434                     "invalid ARP filter size\n");
1435             return -1;
1436         } else {
1437             memcpy(adapter->arp_filter, gen_ie->ie_data,
1438                    gen_ie->len);
1439             adapter->arp_filter_size = gen_ie->len;
1440         }
1441         break;
1442     default:
1443         mwifiex_dbg(adapter, ERROR, "invalid IE type\n");
1444         return -1;
1445     }
1446     return 0;
1447 }
1448 
1449 /*
1450  * Sends IOCTL request to set a generic IE.
1451  *
1452  * This function allocates the IOCTL request buffer, fills it
1453  * with requisite parameters and calls the IOCTL handler.
1454  */
1455 int
1456 mwifiex_set_gen_ie(struct mwifiex_private *priv, const u8 *ie, int ie_len)
1457 {
1458     struct mwifiex_ds_misc_gen_ie gen_ie;
1459 
1460     if (ie_len > IEEE_MAX_IE_SIZE)
1461         return -EFAULT;
1462 
1463     gen_ie.type = MWIFIEX_IE_TYPE_GEN_IE;
1464     gen_ie.len = ie_len;
1465     memcpy(gen_ie.ie_data, ie, ie_len);
1466     if (mwifiex_misc_ioctl_gen_ie(priv, &gen_ie, HostCmd_ACT_GEN_SET))
1467         return -EFAULT;
1468 
1469     return 0;
1470 }
1471 
1472 /* This function get Host Sleep wake up reason.
1473  *
1474  */
1475 int mwifiex_get_wakeup_reason(struct mwifiex_private *priv, u16 action,
1476                   int cmd_type,
1477                   struct mwifiex_ds_wakeup_reason *wakeup_reason)
1478 {
1479     int status = 0;
1480 
1481     status = mwifiex_send_cmd(priv, HostCmd_CMD_HS_WAKEUP_REASON,
1482                   HostCmd_ACT_GEN_GET, 0, wakeup_reason,
1483                   cmd_type == MWIFIEX_SYNC_CMD);
1484 
1485     return status;
1486 }
1487 
1488 int mwifiex_get_chan_info(struct mwifiex_private *priv,
1489               struct mwifiex_channel_band *channel_band)
1490 {
1491     int status = 0;
1492 
1493     status = mwifiex_send_cmd(priv, HostCmd_CMD_STA_CONFIGURE,
1494                   HostCmd_ACT_GEN_GET, 0, channel_band,
1495                   MWIFIEX_SYNC_CMD);
1496 
1497     return status;
1498 }
[ Source navigation ] [ Diff markup ] [ Identifier search ] [ general search ]

This page was automatically generated by the 2.1.0 LXR engine.

The LXR team
Valid CSS 2.1! Valid HTML 4.01!