drivers/staging/wlan-ng/cfg80211.c

   1 /* cfg80211 Interface for prism2_usb module */
   2
   3
   4 /* Prism2 channel/frequency/bitrate declarations */
   5 static const struct ieee80211_channel prism2_channels[] = {
   6         { .center_freq = 2412 },
   7         { .center_freq = 2417 },
   8         { .center_freq = 2422 },
   9         { .center_freq = 2427 },
  10         { .center_freq = 2432 },
  11         { .center_freq = 2437 },
  12         { .center_freq = 2442 },
  13         { .center_freq = 2447 },
  14         { .center_freq = 2452 },
  15         { .center_freq = 2457 },
  16         { .center_freq = 2462 },
  17         { .center_freq = 2467 },
  18         { .center_freq = 2472 },
  19         { .center_freq = 2484 },
  20 };
  21
  22 static const struct ieee80211_rate prism2_rates[] = {
  23         { .bitrate = 10 },
  24         { .bitrate = 20 },
  25         { .bitrate = 55 },
  26         { .bitrate = 110 }
  27 };
  28
  29 #define PRISM2_NUM_CIPHER_SUITES 2
  30 static const u32 prism2_cipher_suites[PRISM2_NUM_CIPHER_SUITES] = {
  31         WLAN_CIPHER_SUITE_WEP40,
  32         WLAN_CIPHER_SUITE_WEP104
  33 };
  34
  35
  36 /* prism2 device private data */
  37 struct prism2_wiphy_private {
  38         wlandevice_t *wlandev;
  39
  40         struct ieee80211_supported_band band;
  41         struct ieee80211_channel channels[ARRAY_SIZE(prism2_channels)];
  42         struct ieee80211_rate rates[ARRAY_SIZE(prism2_rates)];
  43
  44         struct cfg80211_scan_request *scan_request;
  45 };
  46
  47 static const void * const prism2_wiphy_privid = &prism2_wiphy_privid;
  48
  49
  50 /* Helper Functions */
  51 static int prism2_result2err(int prism2_result)
  52 {
  53         int err = 0;
  54
  55         switch (prism2_result) {
  56         case P80211ENUM_resultcode_invalid_parameters:
  57                 err = -EINVAL;
  58                 break;
  59         case P80211ENUM_resultcode_implementation_failure:
  60                 err = -EIO;
  61                 break;
  62         case P80211ENUM_resultcode_not_supported:
  63                 err = -EOPNOTSUPP;
  64                 break;
  65         default:
  66                 err = 0;
  67                 break;
  68         }
  69
  70         return err;
  71 }
  72
  73 static int prism2_domibset_uint32(wlandevice_t *wlandev, u32 did, u32 data)
  74 {
  75         struct p80211msg_dot11req_mibset msg;
  76         p80211item_uint32_t *mibitem = (p80211item_uint32_t *) &msg.mibattribute.data;
  77
  78         msg.msgcode = DIDmsg_dot11req_mibset;
  79         mibitem->did = did;
  80         mibitem->data = data;
  81
  82         return p80211req_dorequest(wlandev, (u8 *) &msg);
  83 }
  84
  85 static int prism2_domibset_pstr32(wlandevice_t *wlandev,
  86                                   u32 did, u8 len, u8 *data)
  87 {
  88         struct p80211msg_dot11req_mibset msg;
  89         p80211item_pstr32_t *mibitem = (p80211item_pstr32_t *) &msg.mibattribute.data;
  90
  91         msg.msgcode = DIDmsg_dot11req_mibset;
  92         mibitem->did = did;
  93         mibitem->data.len = len;
  94         memcpy(mibitem->data.data, data, len);
  95
  96         return p80211req_dorequest(wlandev, (u8 *) &msg);
  97 }
  98
  99
 100 /* The interface functions, called by the cfg80211 layer */
 101 static int prism2_change_virtual_intf(struct wiphy *wiphy,
 102                                       struct net_device *dev,
 103                                       enum nl80211_iftype type, u32 *flags,
 104                                       struct vif_params *params)
 105 {
 106         wlandevice_t *wlandev = dev->ml_priv;
 107         u32 data;
 108         int result;
 109         int err = 0;
 110
 111         switch (type) {
 112         case NL80211_IFTYPE_ADHOC:
 113                 if (wlandev->macmode == WLAN_MACMODE_IBSS_STA)
 114                         goto exit;
 115                 wlandev->macmode = WLAN_MACMODE_IBSS_STA;
 116                 data = 0;
 117                 break;
 118         case NL80211_IFTYPE_STATION:
 119                 if (wlandev->macmode == WLAN_MACMODE_ESS_STA)
 120                         goto exit;
 121                 wlandev->macmode = WLAN_MACMODE_ESS_STA;
 122                 data = 1;
 123                 break;
 124         default:
 125                 netdev_warn(dev, "Operation mode: %d not support\n", type);
 126                 return -EOPNOTSUPP;
 127         }
 128
 129         /* Set Operation mode to the PORT TYPE RID */
 130         result = prism2_domibset_uint32(wlandev,
 131                                         DIDmib_p2_p2Static_p2CnfPortType,
 132                                         data);
 133
 134         if (result)
 135                 err = -EFAULT;
 136
 137         dev->ieee80211_ptr->iftype = type;
 138
 139 exit:
 140         return err;
 141 }
 142
 143 static int prism2_add_key(struct wiphy *wiphy, struct net_device *dev,
 144                           u8 key_index, bool pairwise, const u8 *mac_addr,
 145                           struct key_params *params)
 146 {
 147         wlandevice_t *wlandev = dev->ml_priv;
 148         u32 did;
 149
 150         int err = 0;
 151         int result = 0;
 152
 153         switch (params->cipher) {
 154         case WLAN_CIPHER_SUITE_WEP40:
 155         case WLAN_CIPHER_SUITE_WEP104:
 156                 result = prism2_domibset_uint32(wlandev,
 157                                                 DIDmib_dot11smt_dot11PrivacyTable_dot11WEPDefaultKeyID,
 158                                                 key_index);
 159                 if (result)
 160                         goto exit;
 161
 162                 /* send key to driver */
 163                 switch (key_index) {
 164                 case 0:
 165                         did = DIDmib_dot11smt_dot11WEPDefaultKeysTable_dot11WEPDefaultKey0;
 166                         break;
 167
 168                 case 1:
 169                         did = DIDmib_dot11smt_dot11WEPDefaultKeysTable_dot11WEPDefaultKey1;
 170                         break;
 171
 172                 case 2:
 173                         did = DIDmib_dot11smt_dot11WEPDefaultKeysTable_dot11WEPDefaultKey2;
 174                         break;
 175
 176                 case 3:
 177                         did = DIDmib_dot11smt_dot11WEPDefaultKeysTable_dot11WEPDefaultKey3;
 178                         break;
 179
 180                 default:
 181                         err = -EINVAL;
 182                         goto exit;
 183                 }
 184
 185                 result = prism2_domibset_pstr32(wlandev, did, params->key_len, params->key);
 186                 if (result)
 187                         goto exit;
 188                 break;
 189
 190         default:
 191                 pr_debug("Unsupported cipher suite\n");
 192                 result = 1;
 193         }
 194
 195 exit:
 196         if (result)
 197                 err = -EFAULT;
 198
 199         return err;
 200 }
 201
 202 static int prism2_get_key(struct wiphy *wiphy, struct net_device *dev,
 203                           u8 key_index, bool pairwise,
 204                           const u8 *mac_addr, void *cookie,
 205                           void (*callback)(void *cookie, struct key_params*))
 206 {
 207         wlandevice_t *wlandev = dev->ml_priv;
 208         struct key_params params;
 209         int len;
 210
 211         if (key_index >= NUM_WEPKEYS)
 212                 return -EINVAL;
 213
 214         len = wlandev->wep_keylens[key_index];
 215         memset(&params, 0, sizeof(params));
 216
 217         if (len == 13)
 218                 params.cipher = WLAN_CIPHER_SUITE_WEP104;
 219         else if (len == 5)
 220                 params.cipher = WLAN_CIPHER_SUITE_WEP104;
 221         else
 222                 return -ENOENT;
 223         params.key_len = len;
 224         params.key = wlandev->wep_keys[key_index];
 225         params.seq_len = 0;
 226
 227         callback(cookie, &params);
 228
 229         return 0;
 230 }
 231
 232 static int prism2_del_key(struct wiphy *wiphy, struct net_device *dev,
 233                           u8 key_index, bool pairwise, const u8 *mac_addr)
 234 {
 235         wlandevice_t *wlandev = dev->ml_priv;
 236         u32 did;
 237         int err = 0;
 238         int result = 0;
 239
 240         /* There is no direct way in the hardware (AFAIK) of removing
 241            a key, so we will cheat by setting the key to a bogus value */
 242         /* send key to driver */
 243         switch (key_index) {
 244         case 0:
 245                 did =
 246                     DIDmib_dot11smt_dot11WEPDefaultKeysTable_dot11WEPDefaultKey0;
 247                 break;
 248
 249         case 1:
 250                 did =
 251                     DIDmib_dot11smt_dot11WEPDefaultKeysTable_dot11WEPDefaultKey1;
 252                 break;
 253
 254         case 2:
 255                 did =
 256                     DIDmib_dot11smt_dot11WEPDefaultKeysTable_dot11WEPDefaultKey2;
 257                 break;
 258
 259         case 3:
 260                 did =
 261                     DIDmib_dot11smt_dot11WEPDefaultKeysTable_dot11WEPDefaultKey3;
 262                 break;
 263
 264         default:
 265                 err = -EINVAL;
 266                 goto exit;
 267         }
 268
 269         result = prism2_domibset_pstr32(wlandev, did, 13, "0000000000000");
 270
 271 exit:
 272         if (result)
 273                 err = -EFAULT;
 274
 275         return err;
 276 }
 277
 278 static int prism2_set_default_key(struct wiphy *wiphy, struct net_device *dev,
 279                                   u8 key_index, bool unicast, bool multicast)
 280 {
 281         wlandevice_t *wlandev = dev->ml_priv;
 282
 283         int err = 0;
 284         int result = 0;
 285
 286         result = prism2_domibset_uint32(wlandev,
 287                 DIDmib_dot11smt_dot11PrivacyTable_dot11WEPDefaultKeyID,
 288                 key_index);
 289
 290         if (result)
 291                 err = -EFAULT;
 292
 293         return err;
 294 }
 295
 296
 297 static int prism2_get_station(struct wiphy *wiphy, struct net_device *dev,
 298                               u8 *mac, struct station_info *sinfo)
 299 {
 300         wlandevice_t *wlandev = dev->ml_priv;
 301         struct p80211msg_lnxreq_commsquality quality;
 302         int result;
 303
 304         memset(sinfo, 0, sizeof(*sinfo));
 305
 306         if ((wlandev == NULL) || (wlandev->msdstate != WLAN_MSD_RUNNING))
 307                 return -EOPNOTSUPP;
 308
 309         /* build request message */
 310         quality.msgcode = DIDmsg_lnxreq_commsquality;
 311         quality.dbm.data = P80211ENUM_truth_true;
 312         quality.dbm.status = P80211ENUM_msgitem_status_data_ok;
 313
 314         /* send message to nsd */
 315         if (wlandev->mlmerequest == NULL)
 316                 return -EOPNOTSUPP;
 317
 318         result = wlandev->mlmerequest(wlandev, (struct p80211msg *) &quality);
 319
 320
 321         if (result == 0) {
 322                 sinfo->txrate.legacy = quality.txrate.data;
 323                 sinfo->filled |= STATION_INFO_TX_BITRATE;
 324                 sinfo->signal = quality.level.data;
 325                 sinfo->filled |= STATION_INFO_SIGNAL;
 326         }
 327
 328         return result;
 329 }
 330
 331 static int prism2_scan(struct wiphy *wiphy, struct cfg80211_scan_request *request)
 332 {
 333         struct net_device *dev;
 334         struct prism2_wiphy_private *priv = wiphy_priv(wiphy);
 335         wlandevice_t *wlandev;
 336         struct p80211msg_dot11req_scan msg1;
 337         struct p80211msg_dot11req_scan_results msg2;
 338         struct cfg80211_bss *bss;
 339         int result;
 340         int err = 0;
 341         int numbss = 0;
 342         int i = 0;
 343         u8 ie_buf[46];
 344         int ie_len;
 345
 346         if (!request)
 347                 return -EINVAL;
 348
 349         dev = request->wdev->netdev;
 350         wlandev = dev->ml_priv;
 351
 352         if (priv->scan_request && priv->scan_request != request)
 353                 return -EBUSY;
 354
 355         if (wlandev->macmode == WLAN_MACMODE_ESS_AP) {
 356                 netdev_err(dev, "Can't scan in AP mode\n");
 357                 return -EOPNOTSUPP;
 358         }
 359
 360         priv->scan_request = request;
 361
 362         memset(&msg1, 0x00, sizeof(struct p80211msg_dot11req_scan));
 363         msg1.msgcode = DIDmsg_dot11req_scan;
 364         msg1.bsstype.data = P80211ENUM_bsstype_any;
 365
 366         memset(&msg1.bssid.data.data, 0xFF, sizeof(msg1.bssid.data.data));
 367         msg1.bssid.data.len = 6;
 368
 369         if (request->n_ssids > 0) {
 370                 msg1.scantype.data = P80211ENUM_scantype_active;
 371                 msg1.ssid.data.len = request->ssids->ssid_len;
 372                 memcpy(msg1.ssid.data.data,
 373                         request->ssids->ssid, request->ssids->ssid_len);
 374         } else {
 375                 msg1.scantype.data = 0;
 376         }
 377         msg1.probedelay.data = 0;
 378
 379         for (i = 0;
 380                 (i < request->n_channels) && i < ARRAY_SIZE(prism2_channels);
 381                 i++)
 382                 msg1.channellist.data.data[i] =
 383                         ieee80211_frequency_to_channel(request->channels[i]->center_freq);
 384         msg1.channellist.data.len = request->n_channels;
 385
 386         msg1.maxchanneltime.data = 250;
 387         msg1.minchanneltime.data = 200;
 388
 389         result = p80211req_dorequest(wlandev, (u8 *) &msg1);
 390         if (result) {
 391                 err = prism2_result2err(msg1.resultcode.data);
 392                 goto exit;
 393         }
 394         /* Now retrieve scan results */
 395         numbss = msg1.numbss.data;
 396
 397         for (i = 0; i < numbss; i++) {
 398                 memset(&msg2, 0, sizeof(msg2));
 399                 msg2.msgcode = DIDmsg_dot11req_scan_results;
 400                 msg2.bssindex.data = i;
 401
 402                 result = p80211req_dorequest(wlandev, (u8 *) &msg2);
 403                 if ((result != 0) ||
 404                     (msg2.resultcode.data != P80211ENUM_resultcode_success)) {
 405                         break;
 406                 }
 407
 408                 ie_buf[0] = WLAN_EID_SSID;
 409                 ie_buf[1] = msg2.ssid.data.len;
 410                 ie_len = ie_buf[1] + 2;
 411                 memcpy(&ie_buf[2], &(msg2.ssid.data.data), msg2.ssid.data.len);
 412                 bss = cfg80211_inform_bss(wiphy,
 413                         ieee80211_get_channel(wiphy, ieee80211_dsss_chan_to_freq(msg2.dschannel.data)),
 414                         (const u8 *) &(msg2.bssid.data.data),
 415                         msg2.timestamp.data, msg2.capinfo.data,
 416                         msg2.beaconperiod.data,
 417                         ie_buf,
 418                         ie_len,
 419                         (msg2.signal.data - 65536) * 100, /* Conversion to signed type */
 420                         GFP_KERNEL
 421                 );
 422
 423                 if (!bss) {
 424                         err = -ENOMEM;
 425                         goto exit;
 426                 }
 427
 428                 cfg80211_put_bss(wiphy, bss);
 429         }
 430
 431         if (result)
 432                 err = prism2_result2err(msg2.resultcode.data);
 433
 434 exit:
 435         cfg80211_scan_done(request, err ? 1 : 0);
 436         priv->scan_request = NULL;
 437         return err;
 438 }
 439
 440 static int prism2_set_wiphy_params(struct wiphy *wiphy, u32 changed)
 441 {
 442         struct prism2_wiphy_private *priv = wiphy_priv(wiphy);
 443         wlandevice_t *wlandev = priv->wlandev;
 444         u32 data;
 445         int result;
 446         int err = 0;
 447
 448         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
 449                 if (wiphy->rts_threshold == -1)
 450                         data = 2347;
 451                 else
 452                         data = wiphy->rts_threshold;
 453
 454                 result = prism2_domibset_uint32(wlandev,
 455                                                 DIDmib_dot11mac_dot11OperationTable_dot11RTSThreshold,
 456                                                 data);
 457                 if (result) {
 458                         err = -EFAULT;
 459                         goto exit;
 460                 }
 461         }
 462
 463         if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
 464                 if (wiphy->frag_threshold == -1)
 465                         data = 2346;
 466                 else
 467                         data = wiphy->frag_threshold;
 468
 469                 result = prism2_domibset_uint32(wlandev,
 470                                                 DIDmib_dot11mac_dot11OperationTable_dot11FragmentationThreshold,
 471                                                 data);
 472                 if (result) {
 473                         err = -EFAULT;
 474                         goto exit;
 475                 }
 476         }
 477
 478 exit:
 479         return err;
 480 }
 481
 482 static int prism2_connect(struct wiphy *wiphy, struct net_device *dev,
 483                           struct cfg80211_connect_params *sme)
 484 {
 485         wlandevice_t *wlandev = dev->ml_priv;
 486         struct ieee80211_channel *channel = sme->channel;
 487         struct p80211msg_lnxreq_autojoin msg_join;
 488         u32 did;
 489         int length = sme->ssid_len;
 490         int chan = -1;
 491         int is_wep = (sme->crypto.cipher_group == WLAN_CIPHER_SUITE_WEP40) ||
 492             (sme->crypto.cipher_group == WLAN_CIPHER_SUITE_WEP104);
 493         int result;
 494         int err = 0;
 495
 496         /* Set the channel */
 497         if (channel) {
 498                 chan = ieee80211_frequency_to_channel(channel->center_freq);
 499                 result = prism2_domibset_uint32(wlandev,
 500                                                 DIDmib_dot11phy_dot11PhyDSSSTable_dot11CurrentChannel,
 501                                                 chan);
 502                 if (result)
 503                         goto exit;
 504         }
 505
 506         /* Set the authorization */
 507         if ((sme->auth_type == NL80211_AUTHTYPE_OPEN_SYSTEM) ||
 508                 ((sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) && !is_wep))
 509                         msg_join.authtype.data = P80211ENUM_authalg_opensystem;
 510         else if ((sme->auth_type == NL80211_AUTHTYPE_SHARED_KEY) ||
 511                 ((sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) && is_wep))
 512                         msg_join.authtype.data = P80211ENUM_authalg_sharedkey;
 513         else
 514                 netdev_warn(dev,
 515                         "Unhandled authorisation type for connect (%d)\n",
 516                         sme->auth_type);
 517
 518         /* Set the encryption - we only support wep */
 519         if (is_wep) {
 520                 if (sme->key) {
 521                         result = prism2_domibset_uint32(wlandev,
 522                                 DIDmib_dot11smt_dot11PrivacyTable_dot11WEPDefaultKeyID,
 523                                 sme->key_idx);
 524                         if (result)
 525                                 goto exit;
 526
 527                         /* send key to driver */
 528                         switch (sme->key_idx) {
 529                         case 0:
 530                                 did = DIDmib_dot11smt_dot11WEPDefaultKeysTable_dot11WEPDefaultKey0;
 531                                 break;
 532
 533                         case 1:
 534                                 did = DIDmib_dot11smt_dot11WEPDefaultKeysTable_dot11WEPDefaultKey1;
 535                                 break;
 536
 537                         case 2:
 538                                 did = DIDmib_dot11smt_dot11WEPDefaultKeysTable_dot11WEPDefaultKey2;
 539                                 break;
 540
 541                         case 3:
 542                                 did = DIDmib_dot11smt_dot11WEPDefaultKeysTable_dot11WEPDefaultKey3;
 543                                 break;
 544
 545                         default:
 546                                 err = -EINVAL;
 547                                 goto exit;
 548                         }
 549
 550                         result = prism2_domibset_pstr32(wlandev,
 551                                                         did, sme->key_len,
 552                                                         (u8 *)sme->key);
 553                         if (result)
 554                                 goto exit;
 555
 556                 }
 557
 558                 /* Assume we should set privacy invoked and exclude unencrypted
 559                    We could possibly use sme->privacy here, but the assumption
 560                    seems reasonable anyway */
 561                 result = prism2_domibset_uint32(wlandev,
 562                                                 DIDmib_dot11smt_dot11PrivacyTable_dot11PrivacyInvoked,
 563                                                 P80211ENUM_truth_true);
 564                 if (result)
 565                         goto exit;
 566
 567                 result = prism2_domibset_uint32(wlandev,
 568                                                 DIDmib_dot11smt_dot11PrivacyTable_dot11ExcludeUnencrypted,
 569                                                 P80211ENUM_truth_true);
 570                 if (result)
 571                         goto exit;
 572
 573         } else {
 574                 /* Assume we should unset privacy invoked
 575                    and exclude unencrypted */
 576                 result = prism2_domibset_uint32(wlandev,
 577                                                 DIDmib_dot11smt_dot11PrivacyTable_dot11PrivacyInvoked,
 578                                                 P80211ENUM_truth_false);
 579                 if (result)
 580                         goto exit;
 581
 582                 result = prism2_domibset_uint32(wlandev,
 583                                                 DIDmib_dot11smt_dot11PrivacyTable_dot11ExcludeUnencrypted,
 584                                                 P80211ENUM_truth_false);
 585                 if (result)
 586                         goto exit;
 587
 588         }
 589
 590         /* Now do the actual join. Note there is no way that I can
 591            see to request a specific bssid */
 592         msg_join.msgcode = DIDmsg_lnxreq_autojoin;
 593
 594         memcpy(msg_join.ssid.data.data, sme->ssid, length);
 595         msg_join.ssid.data.len = length;
 596
 597         result = p80211req_dorequest(wlandev, (u8 *) &msg_join);
 598
 599 exit:
 600         if (result)
 601                 err = -EFAULT;
 602
 603         return err;
 604 }
 605
 606 static int prism2_disconnect(struct wiphy *wiphy, struct net_device *dev,
 607                              u16 reason_code)
 608 {
 609         wlandevice_t *wlandev = dev->ml_priv;
 610         struct p80211msg_lnxreq_autojoin msg_join;
 611         int result;
 612         int err = 0;
 613
 614
 615         /* Do a join, with a bogus ssid. Thats the only way I can think of */
 616         msg_join.msgcode = DIDmsg_lnxreq_autojoin;
 617
 618         memcpy(msg_join.ssid.data.data, "---", 3);
 619         msg_join.ssid.data.len = 3;
 620
 621         result = p80211req_dorequest(wlandev, (u8 *) &msg_join);
 622
 623         if (result)
 624                 err = -EFAULT;
 625
 626         return err;
 627 }
 628
 629
 630 static int prism2_join_ibss(struct wiphy *wiphy, struct net_device *dev,
 631                             struct cfg80211_ibss_params *params)
 632 {
 633         return -EOPNOTSUPP;
 634 }
 635
 636 static int prism2_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
 637 {
 638         return -EOPNOTSUPP;
 639 }
 640
 641
 642 static int prism2_set_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev,
 643                                enum nl80211_tx_power_setting type, int mbm)
 644 {
 645         struct prism2_wiphy_private *priv = wiphy_priv(wiphy);
 646         wlandevice_t *wlandev = priv->wlandev;
 647         u32 data;
 648         int result;
 649         int err = 0;
 650
 651         if (type == NL80211_TX_POWER_AUTOMATIC)
 652                 data = 30;
 653         else
 654                 data = MBM_TO_DBM(mbm);
 655
 656         result = prism2_domibset_uint32(wlandev,
 657                 DIDmib_dot11phy_dot11PhyTxPowerTable_dot11CurrentTxPowerLevel,
 658                 data);
 659
 660         if (result) {
 661                 err = -EFAULT;
 662                 goto exit;
 663         }
 664
 665 exit:
 666         return err;
 667 }
 668
 669 static int prism2_get_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev,
 670                                int *dbm)
 671 {
 672         struct prism2_wiphy_private *priv = wiphy_priv(wiphy);
 673         wlandevice_t *wlandev = priv->wlandev;
 674         struct p80211msg_dot11req_mibget msg;
 675         p80211item_uint32_t *mibitem;
 676         int result;
 677         int err = 0;
 678
 679         mibitem = (p80211item_uint32_t *) &msg.mibattribute.data;
 680         msg.msgcode = DIDmsg_dot11req_mibget;
 681         mibitem->did =
 682             DIDmib_dot11phy_dot11PhyTxPowerTable_dot11CurrentTxPowerLevel;
 683
 684         result = p80211req_dorequest(wlandev, (u8 *) &msg);
 685
 686         if (result) {
 687                 err = -EFAULT;
 688                 goto exit;
 689         }
 690
 691         *dbm = mibitem->data;
 692
 693 exit:
 694         return err;
 695 }
 696
 697
 698
 699
 700 /* Interface callback functions, passing data back up to the cfg80211 layer */
 701 void prism2_connect_result(wlandevice_t *wlandev, u8 failed)
 702 {
 703         u16 status = failed ?
 704                      WLAN_STATUS_UNSPECIFIED_FAILURE : WLAN_STATUS_SUCCESS;
 705
 706         cfg80211_connect_result(wlandev->netdev, wlandev->bssid,
 707                                 NULL, 0, NULL, 0, status, GFP_KERNEL);
 708 }
 709
 710 void prism2_disconnected(wlandevice_t *wlandev)
 711 {
 712         cfg80211_disconnected(wlandev->netdev, 0, NULL,
 713                 0, GFP_KERNEL);
 714 }
 715
 716 void prism2_roamed(wlandevice_t *wlandev)
 717 {
 718         cfg80211_roamed(wlandev->netdev, NULL, wlandev->bssid,
 719                 NULL, 0, NULL, 0, GFP_KERNEL);
 720 }
 721
 722
 723 /* Structures for declaring wiphy interface */
 724 static const struct cfg80211_ops prism2_usb_cfg_ops = {
 725         .change_virtual_intf = prism2_change_virtual_intf,
 726         .add_key = prism2_add_key,
 727         .get_key = prism2_get_key,
 728         .del_key = prism2_del_key,
 729         .set_default_key = prism2_set_default_key,
 730         .get_station = prism2_get_station,
 731         .scan = prism2_scan,
 732         .set_wiphy_params = prism2_set_wiphy_params,
 733         .connect = prism2_connect,
 734         .disconnect = prism2_disconnect,
 735         .join_ibss = prism2_join_ibss,
 736         .leave_ibss = prism2_leave_ibss,
 737         .set_tx_power = prism2_set_tx_power,
 738         .get_tx_power = prism2_get_tx_power,
 739 };
 740
 741
 742 /* Functions to create/free wiphy interface */
 743 struct wiphy *wlan_create_wiphy(struct device *dev, wlandevice_t *wlandev)
 744 {
 745         struct wiphy *wiphy;
 746         struct prism2_wiphy_private *priv;
 747
 748         wiphy = wiphy_new(&prism2_usb_cfg_ops, sizeof(*priv));
 749         if (!wiphy)
 750                 return NULL;
 751
 752         priv = wiphy_priv(wiphy);
 753         priv->wlandev = wlandev;
 754         memcpy(priv->channels, prism2_channels, sizeof(prism2_channels));
 755         memcpy(priv->rates, prism2_rates, sizeof(prism2_rates));
 756         priv->band.channels = priv->channels;
 757         priv->band.n_channels = ARRAY_SIZE(prism2_channels);
 758         priv->band.bitrates = priv->rates;
 759         priv->band.n_bitrates = ARRAY_SIZE(prism2_rates);
 760         priv->band.band = IEEE80211_BAND_2GHZ;
 761         priv->band.ht_cap.ht_supported = false;
 762         wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;
 763
 764         set_wiphy_dev(wiphy, dev);
 765         wiphy->privid = prism2_wiphy_privid;
 766         wiphy->max_scan_ssids = 1;
 767         wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION)
 768                                  | BIT(NL80211_IFTYPE_ADHOC);
 769         wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
 770         wiphy->n_cipher_suites = PRISM2_NUM_CIPHER_SUITES;
 771         wiphy->cipher_suites = prism2_cipher_suites;
 772
 773         if (wiphy_register(wiphy) < 0)
 774                 return NULL;
 775
 776         return wiphy;
 777 }
 778
 779
 780 void wlan_free_wiphy(struct wiphy *wiphy)
 781 {
 782         wiphy_unregister(wiphy);
 783         wiphy_free(wiphy);
 784 }