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