drivers/staging/wlan-ng/cfg80211.c

   1 /* cfg80211 Interface for prism2_usb module */
   2
   3
   4 /* Prism2 channell/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 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                 printk(KERN_WARNING "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, DIDmib_p2_p2Static_p2CnfPortType, data);
 131
 132         if (result)
 133                 err = -EFAULT;
 134
 135         dev->ieee80211_ptr->iftype = type;
 136
 137 exit:
 138         return err;
 139 }
 140
 141 int prism2_add_key(struct wiphy *wiphy, struct net_device *dev,
 142                    u8 key_index, bool pairwise, const u8 *mac_addr,
 143                    struct key_params *params)
 144 {
 145         wlandevice_t *wlandev = dev->ml_priv;
 146         u32 did;
 147
 148         int err = 0;
 149         int result = 0;
 150
 151         switch (params->cipher) {
 152         case WLAN_CIPHER_SUITE_WEP40:
 153         case WLAN_CIPHER_SUITE_WEP104:
 154                 result = prism2_domibset_uint32(wlandev,
 155                                                 DIDmib_dot11smt_dot11PrivacyTable_dot11WEPDefaultKeyID,
 156                                                 key_index);
 157                 if (result)
 158                         goto exit;
 159
 160                 /* send key to driver */
 161                 switch (key_index) {
 162                 case 0:
 163                         did = DIDmib_dot11smt_dot11WEPDefaultKeysTable_dot11WEPDefaultKey0;
 164                         break;
 165
 166                 case 1:
 167                         did = DIDmib_dot11smt_dot11WEPDefaultKeysTable_dot11WEPDefaultKey1;
 168                         break;
 169
 170                 case 2:
 171                         did = DIDmib_dot11smt_dot11WEPDefaultKeysTable_dot11WEPDefaultKey2;
 172                         break;
 173
 174                 case 3:
 175                         did = DIDmib_dot11smt_dot11WEPDefaultKeysTable_dot11WEPDefaultKey3;
 176                         break;
 177
 178                 default:
 179                         err = -EINVAL;
 180                         goto exit;
 181                 }
 182
 183                 result = prism2_domibset_pstr32(wlandev, did, params->key_len, params->key);
 184                 if (result)
 185                         goto exit;
 186                 break;
 187
 188         default:
 189                 pr_debug("Unsupported cipher suite\n");
 190                 result = 1;
 191         }
 192
 193 exit:
 194         if (result)
 195                 err = -EFAULT;
 196
 197         return err;
 198 }
 199
 200 int prism2_get_key(struct wiphy *wiphy, struct net_device *dev,
 201                    u8 key_index, bool pairwise, const u8 *mac_addr, void *cookie,
 202                    void (*callback)(void *cookie, struct key_params*))
 203 {
 204         wlandevice_t *wlandev = dev->ml_priv;
 205         struct key_params params;
 206         int len;
 207
 208         if (key_index >= NUM_WEPKEYS)
 209                 return -EINVAL;
 210
 211         len = wlandev->wep_keylens[key_index];
 212         memset(&params, 0, sizeof(params));
 213
 214         if (len == 13)
 215                 params.cipher = WLAN_CIPHER_SUITE_WEP104;
 216         else if (len == 5)
 217                 params.cipher = WLAN_CIPHER_SUITE_WEP104;
 218         else
 219                 return -ENOENT;
 220         params.key_len = len;
 221         params.key = wlandev->wep_keys[key_index];
 222         params.seq_len = 0;
 223
 224         callback(cookie, &params);
 225
 226         return 0;
 227 }
 228
 229 int prism2_del_key(struct wiphy *wiphy, struct net_device *dev,
 230                    u8 key_index, bool pairwise, const u8 *mac_addr)
 231 {
 232         wlandevice_t *wlandev = dev->ml_priv;
 233         u32 did;
 234         int err = 0;
 235         int result = 0;
 236
 237         /* There is no direct way in the hardware (AFAIK) of removing
 238            a key, so we will cheat by setting the key to a bogus value */
 239         /* send key to driver */
 240         switch (key_index) {
 241         case 0:
 242                 did =
 243                     DIDmib_dot11smt_dot11WEPDefaultKeysTable_dot11WEPDefaultKey0;
 244                 break;
 245
 246         case 1:
 247                 did =
 248                     DIDmib_dot11smt_dot11WEPDefaultKeysTable_dot11WEPDefaultKey1;
 249                 break;
 250
 251         case 2:
 252                 did =
 253                     DIDmib_dot11smt_dot11WEPDefaultKeysTable_dot11WEPDefaultKey2;
 254                 break;
 255
 256         case 3:
 257                 did =
 258                     DIDmib_dot11smt_dot11WEPDefaultKeysTable_dot11WEPDefaultKey3;
 259                 break;
 260
 261         default:
 262                 err = -EINVAL;
 263                 goto exit;
 264         }
 265
 266         result = prism2_domibset_pstr32(wlandev, did, 13, "0000000000000");
 267
 268 exit:
 269         if (result)
 270                 err = -EFAULT;
 271
 272         return err;
 273 }
 274
 275 int prism2_set_default_key(struct wiphy *wiphy, struct net_device *dev,
 276                            u8 key_index)
 277 {
 278         wlandevice_t *wlandev = dev->ml_priv;
 279
 280         int err = 0;
 281         int result = 0;
 282
 283         result = prism2_domibset_uint32(wlandev,
 284                 DIDmib_dot11smt_dot11PrivacyTable_dot11WEPDefaultKeyID,
 285                 key_index);
 286
 287         if (result)
 288                 err = -EFAULT;
 289
 290         return err;
 291 }
 292
 293
 294 int prism2_get_station(struct wiphy *wiphy, struct net_device *dev,
 295                        u8 *mac, struct station_info *sinfo)
 296 {
 297         wlandevice_t *wlandev = dev->ml_priv;
 298         struct p80211msg_lnxreq_commsquality quality;
 299         int result;
 300
 301         memset(sinfo, 0, sizeof(*sinfo));
 302
 303         if ((wlandev == NULL) || (wlandev->msdstate != WLAN_MSD_RUNNING))
 304                 return -EOPNOTSUPP;
 305
 306         /* build request message */
 307         quality.msgcode = DIDmsg_lnxreq_commsquality;
 308         quality.dbm.data = P80211ENUM_truth_true;
 309         quality.dbm.status = P80211ENUM_msgitem_status_data_ok;
 310
 311         /* send message to nsd */
 312         if (wlandev->mlmerequest == NULL)
 313                 return -EOPNOTSUPP;
 314
 315         result = wlandev->mlmerequest(wlandev, (struct p80211msg *) &quality);
 316
 317
 318         if (result == 0) {
 319                 sinfo->txrate.legacy = quality.txrate.data;
 320                 sinfo->filled |= STATION_INFO_TX_BITRATE;
 321                 sinfo->signal = quality.level.data;
 322                 sinfo->filled |= STATION_INFO_SIGNAL;
 323         }
 324
 325         return result;
 326 }
 327
 328 int prism2_scan(struct wiphy *wiphy, struct net_device *dev,
 329                 struct cfg80211_scan_request *request)
 330 {
 331         struct prism2_wiphy_private *priv = wiphy_priv(wiphy);
 332         wlandevice_t *wlandev = dev->ml_priv;
 333         struct p80211msg_dot11req_scan msg1;
 334         struct p80211msg_dot11req_scan_results msg2;
 335         int result;
 336         int err = 0;
 337         int numbss = 0;
 338         int i = 0;
 339         u8 ie_buf[46];
 340         int ie_len;
 341
 342         if (!request)
 343                 return -EINVAL;
 344
 345         if (priv->scan_request && priv->scan_request != request)
 346                 return -EBUSY;
 347
 348         if (wlandev->macmode == WLAN_MACMODE_ESS_AP) {
 349                 printk(KERN_ERR "Can't scan in AP mode\n");
 350                 return -EOPNOTSUPP;
 351         }
 352
 353         priv->scan_request = request;
 354
 355         memset(&msg1, 0x00, sizeof(struct p80211msg_dot11req_scan));
 356         msg1.msgcode = DIDmsg_dot11req_scan;
 357         msg1.bsstype.data = P80211ENUM_bsstype_any;
 358
 359         memset(&(msg1.bssid.data), 0xFF, sizeof(p80211item_pstr6_t));
 360         msg1.bssid.data.len = 6;
 361
 362         if (request->n_ssids > 0) {
 363                 msg1.scantype.data = P80211ENUM_scantype_active;
 364                 msg1.ssid.data.len = request->ssids->ssid_len;
 365                 memcpy(msg1.ssid.data.data, request->ssids->ssid, request->ssids->ssid_len);
 366         } else {
 367                 msg1.scantype.data = 0;
 368         }
 369         msg1.probedelay.data = 0;
 370
 371         for (i = 0;
 372                 (i < request->n_channels) && i < ARRAY_SIZE(prism2_channels);
 373                 i++)
 374                 msg1.channellist.data.data[i] =
 375                         ieee80211_frequency_to_channel(request->channels[i]->center_freq);
 376         msg1.channellist.data.len = request->n_channels;
 377
 378         msg1.maxchanneltime.data = 250;
 379         msg1.minchanneltime.data = 200;
 380
 381         result = p80211req_dorequest(wlandev, (u8 *) &msg1);
 382         if (result) {
 383                 err = prism2_result2err(msg1.resultcode.data);
 384                 goto exit;
 385         }
 386         /* Now retrieve scan results */
 387         numbss = msg1.numbss.data;
 388
 389         for (i = 0; i < numbss; i++) {
 390                 memset(&msg2, 0, sizeof(msg2));
 391                 msg2.msgcode = DIDmsg_dot11req_scan_results;
 392                 msg2.bssindex.data = i;
 393
 394                 result = p80211req_dorequest(wlandev, (u8 *) &msg2);
 395                 if ((result != 0) ||
 396                     (msg2.resultcode.data != P80211ENUM_resultcode_success)) {
 397                         break;
 398                 }
 399
 400                 ie_buf[0] = WLAN_EID_SSID;
 401                 ie_buf[1] = msg2.ssid.data.len;
 402                 ie_len = ie_buf[1] + 2;
 403                 memcpy(&ie_buf[2], &(msg2.ssid.data.data), msg2.ssid.data.len);
 404                 cfg80211_inform_bss(wiphy,
 405                         ieee80211_get_channel(wiphy, ieee80211_dsss_chan_to_freq(msg2.dschannel.data)),
 406                         (const u8 *) &(msg2.bssid.data.data),
 407                         msg2.timestamp.data, msg2.capinfo.data,
 408                         msg2.beaconperiod.data,
 409                         ie_buf,
 410                         ie_len,
 411                         (msg2.signal.data - 65536) * 100, /* Conversion to signed type */
 412                         GFP_KERNEL
 413                 );
 414         }
 415
 416         if (result)
 417                 err = prism2_result2err(msg2.resultcode.data);
 418
 419 exit:
 420         cfg80211_scan_done(request, err ? 1 : 0);
 421         priv->scan_request = NULL;
 422         return err;
 423 }
 424
 425 int prism2_set_wiphy_params(struct wiphy *wiphy, u32 changed)
 426 {
 427         struct prism2_wiphy_private *priv = wiphy_priv(wiphy);
 428         wlandevice_t *wlandev = priv->wlandev;
 429         u32 data;
 430         int result;
 431         int err = 0;
 432
 433         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
 434                 if (wiphy->rts_threshold == -1)
 435                         data = 2347;
 436                 else
 437                         data = wiphy->rts_threshold;
 438
 439                 result = prism2_domibset_uint32(wlandev,
 440                                                 DIDmib_dot11mac_dot11OperationTable_dot11RTSThreshold,
 441                                                 data);
 442                 if (result) {
 443                         err = -EFAULT;
 444                         goto exit;
 445                 }
 446         }
 447
 448         if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
 449                 if (wiphy->frag_threshold == -1)
 450                         data = 2346;
 451                 else
 452                         data = wiphy->frag_threshold;
 453
 454                 result = prism2_domibset_uint32(wlandev,
 455                                                 DIDmib_dot11mac_dot11OperationTable_dot11FragmentationThreshold,
 456                                                 data);
 457                 if (result) {
 458                         err = -EFAULT;
 459                         goto exit;
 460                 }
 461         }
 462
 463 exit:
 464         return err;
 465 }
 466
 467 int prism2_connect(struct wiphy *wiphy, struct net_device *dev,
 468                    struct cfg80211_connect_params *sme)
 469 {
 470         wlandevice_t *wlandev = dev->ml_priv;
 471         struct ieee80211_channel *channel = sme->channel;
 472         struct p80211msg_lnxreq_autojoin msg_join;
 473         u32 did;
 474         int length = sme->ssid_len;
 475         int chan = -1;
 476         int is_wep = (sme->crypto.cipher_group == WLAN_CIPHER_SUITE_WEP40) ||
 477             (sme->crypto.cipher_group == WLAN_CIPHER_SUITE_WEP104);
 478         int result;
 479         int err = 0;
 480
 481         /* Set the channel */
 482         if (channel) {
 483                 chan = ieee80211_frequency_to_channel(channel->center_freq);
 484                 result = prism2_domibset_uint32(wlandev,
 485                                                 DIDmib_dot11phy_dot11PhyDSSSTable_dot11CurrentChannel,
 486                                                 chan);
 487                 if (result)
 488                         goto exit;
 489         }
 490
 491         /* Set the authorisation */
 492         if ((sme->auth_type == NL80211_AUTHTYPE_OPEN_SYSTEM) ||
 493                 ((sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) && !is_wep))
 494                         msg_join.authtype.data = P80211ENUM_authalg_opensystem;
 495         else if ((sme->auth_type == NL80211_AUTHTYPE_SHARED_KEY) ||
 496                 ((sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) && is_wep))
 497                         msg_join.authtype.data = P80211ENUM_authalg_sharedkey;
 498         else
 499                 printk(KERN_WARNING
 500                         "Unhandled authorisation type for connect (%d)\n",
 501                         sme->auth_type);
 502
 503         /* Set the encryption - we only support wep */
 504         if (is_wep) {
 505                 if (sme->key) {
 506                         result = prism2_domibset_uint32(wlandev,
 507                                 DIDmib_dot11smt_dot11PrivacyTable_dot11WEPDefaultKeyID,
 508                                 sme->key_idx);
 509                         if (result)
 510                                 goto exit;
 511
 512                         /* send key to driver */
 513                         switch (sme->key_idx) {
 514                         case 0:
 515                                 did = DIDmib_dot11smt_dot11WEPDefaultKeysTable_dot11WEPDefaultKey0;
 516                                 break;
 517
 518                         case 1:
 519                                 did = DIDmib_dot11smt_dot11WEPDefaultKeysTable_dot11WEPDefaultKey1;
 520                                 break;
 521
 522                         case 2:
 523                                 did = DIDmib_dot11smt_dot11WEPDefaultKeysTable_dot11WEPDefaultKey2;
 524                                 break;
 525
 526                         case 3:
 527                                 did = DIDmib_dot11smt_dot11WEPDefaultKeysTable_dot11WEPDefaultKey3;
 528                                 break;
 529
 530                         default:
 531                                 err = -EINVAL;
 532                                 goto exit;
 533                         }
 534
 535                         result = prism2_domibset_pstr32(wlandev, did, sme->key_len, (u8 *) sme->key);
 536                         if (result)
 537                                 goto exit;
 538
 539                 }
 540
 541                 /* Assume we should set privacy invoked and exclude unencrypted
 542                    We could possibly use sme->privacy here, but the assumption
 543                    seems reasonable anyway */
 544                 result = prism2_domibset_uint32(wlandev,
 545                                                 DIDmib_dot11smt_dot11PrivacyTable_dot11PrivacyInvoked,
 546                                                 P80211ENUM_truth_true);
 547                 if (result)
 548                         goto exit;
 549
 550                 result = prism2_domibset_uint32(wlandev,
 551                                                 DIDmib_dot11smt_dot11PrivacyTable_dot11ExcludeUnencrypted,
 552                                                 P80211ENUM_truth_true);
 553                 if (result)
 554                         goto exit;
 555
 556         } else {
 557                 /* Assume we should unset privacy invoked
 558                    and exclude unencrypted */
 559                 result = prism2_domibset_uint32(wlandev,
 560                                                 DIDmib_dot11smt_dot11PrivacyTable_dot11PrivacyInvoked,
 561                                                 P80211ENUM_truth_false);
 562                 if (result)
 563                         goto exit;
 564
 565                 result = prism2_domibset_uint32(wlandev,
 566                                                 DIDmib_dot11smt_dot11PrivacyTable_dot11ExcludeUnencrypted,
 567                                                 P80211ENUM_truth_false);
 568                 if (result)
 569                         goto exit;
 570
 571         }
 572
 573         /* Now do the actual join. Note there is no way that I can
 574            see to request a specific bssid */
 575         msg_join.msgcode = DIDmsg_lnxreq_autojoin;
 576
 577         memcpy(msg_join.ssid.data.data, sme->ssid, length);
 578         msg_join.ssid.data.len = length;
 579
 580         result = p80211req_dorequest(wlandev, (u8 *) &msg_join);
 581
 582 exit:
 583         if (result)
 584                 err = -EFAULT;
 585
 586         return err;
 587 }
 588
 589 int prism2_disconnect(struct wiphy *wiphy, struct net_device *dev,
 590                       u16 reason_code)
 591 {
 592         wlandevice_t *wlandev = dev->ml_priv;
 593         struct p80211msg_lnxreq_autojoin msg_join;
 594         int result;
 595         int err = 0;
 596
 597
 598         /* Do a join, with a bogus ssid. Thats the only way I can think of */
 599         msg_join.msgcode = DIDmsg_lnxreq_autojoin;
 600
 601         memcpy(msg_join.ssid.data.data, "---", 3);
 602         msg_join.ssid.data.len = 3;
 603
 604         result = p80211req_dorequest(wlandev, (u8 *) &msg_join);
 605
 606         if (result)
 607                 err = -EFAULT;
 608
 609         return err;
 610 }
 611
 612
 613 int prism2_join_ibss(struct wiphy *wiphy, struct net_device *dev,
 614                      struct cfg80211_ibss_params *params)
 615 {
 616         return -EOPNOTSUPP;
 617 }
 618
 619 int prism2_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
 620 {
 621         return -EOPNOTSUPP;
 622 }
 623
 624
 625 int prism2_set_tx_power(struct wiphy *wiphy, enum nl80211_tx_power_setting type,
 626                         int mbm)
 627 {
 628         struct prism2_wiphy_private *priv = wiphy_priv(wiphy);
 629         wlandevice_t *wlandev = priv->wlandev;
 630         u32 data;
 631         int result;
 632         int err = 0;
 633
 634         if (type == NL80211_TX_POWER_AUTOMATIC)
 635                 data = 30;
 636         else
 637                 data = MBM_TO_DBM(mbm);
 638
 639         result = prism2_domibset_uint32(wlandev,
 640                 DIDmib_dot11phy_dot11PhyTxPowerTable_dot11CurrentTxPowerLevel,
 641                 data);
 642
 643         if (result) {
 644                 err = -EFAULT;
 645                 goto exit;
 646         }
 647
 648 exit:
 649         return err;
 650 }
 651
 652 int prism2_get_tx_power(struct wiphy *wiphy, int *dbm)
 653 {
 654         struct prism2_wiphy_private *priv = wiphy_priv(wiphy);
 655         wlandevice_t *wlandev = priv->wlandev;
 656         struct p80211msg_dot11req_mibget msg;
 657         p80211item_uint32_t *mibitem = (p80211item_uint32_t *) &msg.mibattribute.data;
 658         int result;
 659         int err = 0;
 660
 661         msg.msgcode = DIDmsg_dot11req_mibget;
 662         mibitem->did =
 663             DIDmib_dot11phy_dot11PhyTxPowerTable_dot11CurrentTxPowerLevel;
 664
 665         result = p80211req_dorequest(wlandev, (u8 *) &msg);
 666
 667         if (result) {
 668                 err = -EFAULT;
 669                 goto exit;
 670         }
 671
 672         *dbm = mibitem->data;
 673
 674 exit:
 675         return err;
 676 }
 677
 678
 679
 680
 681 /* Interface callback functions, passing data back up to the cfg80211 layer */
 682 void prism2_connect_result(wlandevice_t *wlandev, u8 failed)
 683 {
 684         u16 status = failed ? WLAN_STATUS_UNSPECIFIED_FAILURE : WLAN_STATUS_SUCCESS;
 685
 686         cfg80211_connect_result(wlandev->netdev, wlandev->bssid,
 687                                 NULL, 0, NULL, 0, status, GFP_KERNEL);
 688 }
 689
 690 void prism2_disconnected(wlandevice_t *wlandev)
 691 {
 692         cfg80211_disconnected(wlandev->netdev, 0, NULL,
 693                 0, GFP_KERNEL);
 694 }
 695
 696 void prism2_roamed(wlandevice_t *wlandev)
 697 {
 698         cfg80211_roamed(wlandev->netdev, wlandev->bssid,
 699                 NULL, 0, NULL, 0, GFP_KERNEL);
 700 }
 701
 702
 703 /* Structures for declaring wiphy interface */
 704 static const struct cfg80211_ops prism2_usb_cfg_ops = {
 705         .change_virtual_intf = prism2_change_virtual_intf,
 706         .add_key = prism2_add_key,
 707         .get_key = prism2_get_key,
 708         .del_key = prism2_del_key,
 709         .set_default_key = prism2_set_default_key,
 710         .get_station = prism2_get_station,
 711         .scan = prism2_scan,
 712         .set_wiphy_params = prism2_set_wiphy_params,
 713         .connect = prism2_connect,
 714         .disconnect = prism2_disconnect,
 715         .join_ibss = prism2_join_ibss,
 716         .leave_ibss = prism2_leave_ibss,
 717         .set_tx_power = prism2_set_tx_power,
 718         .get_tx_power = prism2_get_tx_power,
 719 };
 720
 721
 722 /* Functions to create/free wiphy interface */
 723 struct wiphy *wlan_create_wiphy(struct device *dev, wlandevice_t *wlandev)
 724 {
 725         struct wiphy *wiphy;
 726         struct prism2_wiphy_private *priv;
 727         wiphy = wiphy_new(&prism2_usb_cfg_ops, sizeof(struct prism2_wiphy_private));
 728         if (!wiphy)
 729                 return NULL;
 730
 731         priv = wiphy_priv(wiphy);
 732         priv->wlandev = wlandev;
 733         memcpy(priv->channels, prism2_channels, sizeof(prism2_channels));
 734         memcpy(priv->rates, prism2_rates, sizeof(prism2_rates));
 735         priv->band.channels = priv->channels;
 736         priv->band.n_channels = ARRAY_SIZE(prism2_channels);
 737         priv->band.bitrates = priv->rates;
 738         priv->band.n_bitrates = ARRAY_SIZE(prism2_rates);
 739         priv->band.band = IEEE80211_BAND_2GHZ;
 740         priv->band.ht_cap.ht_supported = false;
 741         wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;
 742
 743         set_wiphy_dev(wiphy, dev);
 744         wiphy->privid = prism2_wiphy_privid;
 745         wiphy->max_scan_ssids = 1;
 746         wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION)
 747                                  | BIT(NL80211_IFTYPE_ADHOC);
 748         wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
 749         wiphy->n_cipher_suites = PRISM2_NUM_CIPHER_SUITES;
 750         wiphy->cipher_suites = prism2_cipher_suites;
 751
 752         if (wiphy_register(wiphy) < 0)
 753                 return NULL;
 754
 755         return wiphy;
 756 }
 757
 758
 759 void wlan_free_wiphy(struct wiphy *wiphy)
 760 {
 761         wiphy_unregister(wiphy);
 762         wiphy_free(wiphy);
 763 }