1 // SPDX-License-Identifier: GPL-2.0 2 /* cfg80211 Interface for prism2_usb module */ 3 #include "hfa384x.h" 4 #include "prism2mgmt.h" 5 6 /* Prism2 channel/frequency/bitrate declarations */ 7 static const struct ieee80211_channel prism2_channels[] = { 8 { .center_freq = 2412 }, 9 { .center_freq = 2417 }, 10 { .center_freq = 2422 }, 11 { .center_freq = 2427 }, 12 { .center_freq = 2432 }, 13 { .center_freq = 2437 }, 14 { .center_freq = 2442 }, 15 { .center_freq = 2447 }, 16 { .center_freq = 2452 }, 17 { .center_freq = 2457 }, 18 { .center_freq = 2462 }, 19 { .center_freq = 2467 }, 20 { .center_freq = 2472 }, 21 { .center_freq = 2484 }, 22 }; 23 24 static const struct ieee80211_rate prism2_rates[] = { 25 { .bitrate = 10 }, 26 { .bitrate = 20 }, 27 { .bitrate = 55 }, 28 { .bitrate = 110 } 29 }; 30 31 #define PRISM2_NUM_CIPHER_SUITES 2 32 static const u32 prism2_cipher_suites[PRISM2_NUM_CIPHER_SUITES] = { 33 WLAN_CIPHER_SUITE_WEP40, 34 WLAN_CIPHER_SUITE_WEP104 35 }; 36 37 /* prism2 device private data */ 38 struct prism2_wiphy_private { 39 struct wlandevice *wlandev; 40 41 struct ieee80211_supported_band band; 42 struct ieee80211_channel channels[ARRAY_SIZE(prism2_channels)]; 43 struct ieee80211_rate rates[ARRAY_SIZE(prism2_rates)]; 44 45 struct cfg80211_scan_request *scan_request; 46 }; 47 48 static const void * const prism2_wiphy_privid = &prism2_wiphy_privid; 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(struct wlandevice *wlandev, 74 u32 did, u32 data) 75 { 76 struct p80211msg_dot11req_mibset msg; 77 struct p80211item_uint32 *mibitem = 78 (struct p80211item_uint32 *)&msg.mibattribute.data; 79 80 msg.msgcode = DIDMSG_DOT11REQ_MIBSET; 81 mibitem->did = did; 82 mibitem->data = data; 83 84 return p80211req_dorequest(wlandev, (u8 *)&msg); 85 } 86 87 static int prism2_domibset_pstr32(struct wlandevice *wlandev, 88 u32 did, u8 len, const u8 *data) 89 { 90 struct p80211msg_dot11req_mibset msg; 91 struct p80211item_pstr32 *mibitem = 92 (struct p80211item_pstr32 *)&msg.mibattribute.data; 93 94 msg.msgcode = DIDMSG_DOT11REQ_MIBSET; 95 mibitem->did = did; 96 mibitem->data.len = len; 97 memcpy(mibitem->data.data, data, len); 98 99 return p80211req_dorequest(wlandev, (u8 *)&msg); 100 } 101 102 /* The interface functions, called by the cfg80211 layer */ 103 static int prism2_change_virtual_intf(struct wiphy *wiphy, 104 struct net_device *dev, 105 enum nl80211_iftype type, 106 struct vif_params *params) 107 { 108 struct wlandevice *wlandev = dev->ml_priv; 109 u32 data; 110 int result; 111 int err = 0; 112 113 switch (type) { 114 case NL80211_IFTYPE_ADHOC: 115 if (wlandev->macmode == WLAN_MACMODE_IBSS_STA) 116 goto exit; 117 wlandev->macmode = WLAN_MACMODE_IBSS_STA; 118 data = 0; 119 break; 120 case NL80211_IFTYPE_STATION: 121 if (wlandev->macmode == WLAN_MACMODE_ESS_STA) 122 goto exit; 123 wlandev->macmode = WLAN_MACMODE_ESS_STA; 124 data = 1; 125 break; 126 default: 127 netdev_warn(dev, "Operation mode: %d not support\n", type); 128 return -EOPNOTSUPP; 129 } 130 131 /* Set Operation mode to the PORT TYPE RID */ 132 result = prism2_domibset_uint32(wlandev, 133 DIDMIB_P2_STATIC_CNFPORTTYPE, 134 data); 135 136 if (result) 137 err = -EFAULT; 138 139 dev->ieee80211_ptr->iftype = type; 140 141 exit: 142 return err; 143 } 144 145 static int prism2_add_key(struct wiphy *wiphy, struct net_device *dev, 146 u8 key_index, bool pairwise, const u8 *mac_addr, 147 struct key_params *params) 148 { 149 struct wlandevice *wlandev = dev->ml_priv; 150 u32 did; 151 152 if (key_index >= NUM_WEPKEYS) 153 return -EINVAL; 154 155 if (params->cipher != WLAN_CIPHER_SUITE_WEP40 && 156 params->cipher != WLAN_CIPHER_SUITE_WEP104) { 157 pr_debug("Unsupported cipher suite\n"); 158 return -EFAULT; 159 } 160 161 if (prism2_domibset_uint32(wlandev, 162 DIDMIB_DOT11SMT_PRIVACYTABLE_WEPDEFAULTKEYID, 163 key_index)) 164 return -EFAULT; 165 166 /* send key to driver */ 167 did = didmib_dot11smt_wepdefaultkeystable_key(key_index + 1); 168 169 if (prism2_domibset_pstr32(wlandev, did, params->key_len, params->key)) 170 return -EFAULT; 171 return 0; 172 } 173 174 static int prism2_get_key(struct wiphy *wiphy, struct net_device *dev, 175 u8 key_index, bool pairwise, 176 const u8 *mac_addr, void *cookie, 177 void (*callback)(void *cookie, struct key_params*)) 178 { 179 struct wlandevice *wlandev = dev->ml_priv; 180 struct key_params params; 181 int len; 182 183 if (key_index >= NUM_WEPKEYS) 184 return -EINVAL; 185 186 len = wlandev->wep_keylens[key_index]; 187 memset(¶ms, 0, sizeof(params)); 188 189 if (len == 13) 190 params.cipher = WLAN_CIPHER_SUITE_WEP104; 191 else if (len == 5) 192 params.cipher = WLAN_CIPHER_SUITE_WEP104; 193 else 194 return -ENOENT; 195 params.key_len = len; 196 params.key = wlandev->wep_keys[key_index]; 197 params.seq_len = 0; 198 199 callback(cookie, ¶ms); 200 201 return 0; 202 } 203 204 static int prism2_del_key(struct wiphy *wiphy, struct net_device *dev, 205 u8 key_index, bool pairwise, const u8 *mac_addr) 206 { 207 struct wlandevice *wlandev = dev->ml_priv; 208 u32 did; 209 int err = 0; 210 int result = 0; 211 212 /* There is no direct way in the hardware (AFAIK) of removing 213 * a key, so we will cheat by setting the key to a bogus value 214 */ 215 216 if (key_index >= NUM_WEPKEYS) 217 return -EINVAL; 218 219 /* send key to driver */ 220 did = didmib_dot11smt_wepdefaultkeystable_key(key_index + 1); 221 result = prism2_domibset_pstr32(wlandev, did, 13, "0000000000000"); 222 223 if (result) 224 err = -EFAULT; 225 226 return err; 227 } 228 229 static int prism2_set_default_key(struct wiphy *wiphy, struct net_device *dev, 230 u8 key_index, bool unicast, bool multicast) 231 { 232 struct wlandevice *wlandev = dev->ml_priv; 233 234 return prism2_domibset_uint32(wlandev, 235 DIDMIB_DOT11SMT_PRIVACYTABLE_WEPDEFAULTKEYID, 236 key_index); 237 } 238 239 static int prism2_get_station(struct wiphy *wiphy, struct net_device *dev, 240 const u8 *mac, struct station_info *sinfo) 241 { 242 struct wlandevice *wlandev = dev->ml_priv; 243 struct p80211msg_lnxreq_commsquality quality; 244 int result; 245 246 memset(sinfo, 0, sizeof(*sinfo)); 247 248 if (!wlandev || (wlandev->msdstate != WLAN_MSD_RUNNING)) 249 return -EOPNOTSUPP; 250 251 /* build request message */ 252 quality.msgcode = DIDMSG_LNXREQ_COMMSQUALITY; 253 quality.dbm.data = P80211ENUM_truth_true; 254 quality.dbm.status = P80211ENUM_msgitem_status_data_ok; 255 256 /* send message to nsd */ 257 if (!wlandev->mlmerequest) 258 return -EOPNOTSUPP; 259 260 result = wlandev->mlmerequest(wlandev, (struct p80211msg *)&quality); 261 262 if (result == 0) { 263 sinfo->txrate.legacy = quality.txrate.data; 264 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE); 265 sinfo->signal = quality.level.data; 266 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL); 267 } 268 269 return result; 270 } 271 272 static int prism2_scan(struct wiphy *wiphy, 273 struct cfg80211_scan_request *request) 274 { 275 struct net_device *dev; 276 struct prism2_wiphy_private *priv = wiphy_priv(wiphy); 277 struct wlandevice *wlandev; 278 struct p80211msg_dot11req_scan msg1; 279 struct p80211msg_dot11req_scan_results *msg2; 280 struct cfg80211_bss *bss; 281 struct cfg80211_scan_info info = {}; 282 283 int result; 284 int err = 0; 285 int numbss = 0; 286 int i = 0; 287 u8 ie_buf[46]; 288 int ie_len; 289 290 if (!request) 291 return -EINVAL; 292 293 dev = request->wdev->netdev; 294 wlandev = dev->ml_priv; 295 296 if (priv->scan_request && priv->scan_request != request) 297 return -EBUSY; 298 299 if (wlandev->macmode == WLAN_MACMODE_ESS_AP) { 300 netdev_err(dev, "Can't scan in AP mode\n"); 301 return -EOPNOTSUPP; 302 } 303 304 msg2 = kzalloc(sizeof(*msg2), GFP_KERNEL); 305 if (!msg2) 306 return -ENOMEM; 307 308 priv->scan_request = request; 309 310 memset(&msg1, 0x00, sizeof(msg1)); 311 msg1.msgcode = DIDMSG_DOT11REQ_SCAN; 312 msg1.bsstype.data = P80211ENUM_bsstype_any; 313 314 memset(&msg1.bssid.data.data, 0xFF, sizeof(msg1.bssid.data.data)); 315 msg1.bssid.data.len = 6; 316 317 if (request->n_ssids > 0) { 318 msg1.scantype.data = P80211ENUM_scantype_active; 319 msg1.ssid.data.len = request->ssids->ssid_len; 320 memcpy(msg1.ssid.data.data, 321 request->ssids->ssid, request->ssids->ssid_len); 322 } else { 323 msg1.scantype.data = 0; 324 } 325 msg1.probedelay.data = 0; 326 327 for (i = 0; 328 (i < request->n_channels) && i < ARRAY_SIZE(prism2_channels); 329 i++) 330 msg1.channellist.data.data[i] = 331 ieee80211_frequency_to_channel( 332 request->channels[i]->center_freq); 333 msg1.channellist.data.len = request->n_channels; 334 335 msg1.maxchanneltime.data = 250; 336 msg1.minchanneltime.data = 200; 337 338 result = p80211req_dorequest(wlandev, (u8 *)&msg1); 339 if (result) { 340 err = prism2_result2err(msg1.resultcode.data); 341 goto exit; 342 } 343 /* Now retrieve scan results */ 344 numbss = msg1.numbss.data; 345 346 for (i = 0; i < numbss; i++) { 347 int freq; 348 349 msg2->msgcode = DIDMSG_DOT11REQ_SCAN_RESULTS; 350 msg2->bssindex.data = i; 351 352 result = p80211req_dorequest(wlandev, (u8 *)&msg2); 353 if ((result != 0) || 354 (msg2->resultcode.data != P80211ENUM_resultcode_success)) { 355 break; 356 } 357 358 ie_buf[0] = WLAN_EID_SSID; 359 ie_buf[1] = msg2->ssid.data.len; 360 ie_len = ie_buf[1] + 2; 361 memcpy(&ie_buf[2], &msg2->ssid.data.data, msg2->ssid.data.len); 362 freq = ieee80211_channel_to_frequency(msg2->dschannel.data, 363 NL80211_BAND_2GHZ); 364 bss = cfg80211_inform_bss(wiphy, 365 ieee80211_get_channel(wiphy, freq), 366 CFG80211_BSS_FTYPE_UNKNOWN, 367 (const u8 *)&msg2->bssid.data.data, 368 msg2->timestamp.data, msg2->capinfo.data, 369 msg2->beaconperiod.data, 370 ie_buf, 371 ie_len, 372 (msg2->signal.data - 65536) * 100, /* Conversion to signed type */ 373 GFP_KERNEL); 374 375 if (!bss) { 376 err = -ENOMEM; 377 goto exit; 378 } 379 380 cfg80211_put_bss(wiphy, bss); 381 } 382 383 if (result) 384 err = prism2_result2err(msg2->resultcode.data); 385 386 exit: 387 info.aborted = !!(err); 388 cfg80211_scan_done(request, &info); 389 priv->scan_request = NULL; 390 kfree(msg2); 391 return err; 392 } 393 394 static int prism2_set_wiphy_params(struct wiphy *wiphy, u32 changed) 395 { 396 struct prism2_wiphy_private *priv = wiphy_priv(wiphy); 397 struct wlandevice *wlandev = priv->wlandev; 398 u32 data; 399 int result; 400 int err = 0; 401 402 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 403 if (wiphy->rts_threshold == -1) 404 data = 2347; 405 else 406 data = wiphy->rts_threshold; 407 408 result = prism2_domibset_uint32(wlandev, 409 DIDMIB_DOT11MAC_OPERATIONTABLE_RTSTHRESHOLD, 410 data); 411 if (result) { 412 err = -EFAULT; 413 goto exit; 414 } 415 } 416 417 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 418 if (wiphy->frag_threshold == -1) 419 data = 2346; 420 else 421 data = wiphy->frag_threshold; 422 423 result = prism2_domibset_uint32(wlandev, 424 DIDMIB_DOT11MAC_OPERATIONTABLE_FRAGMENTATIONTHRESHOLD, 425 data); 426 if (result) { 427 err = -EFAULT; 428 goto exit; 429 } 430 } 431 432 exit: 433 return err; 434 } 435 436 static int prism2_connect(struct wiphy *wiphy, struct net_device *dev, 437 struct cfg80211_connect_params *sme) 438 { 439 struct wlandevice *wlandev = dev->ml_priv; 440 struct ieee80211_channel *channel = sme->channel; 441 struct p80211msg_lnxreq_autojoin msg_join; 442 u32 did; 443 int length = sme->ssid_len; 444 int chan = -1; 445 int is_wep = (sme->crypto.cipher_group == WLAN_CIPHER_SUITE_WEP40) || 446 (sme->crypto.cipher_group == WLAN_CIPHER_SUITE_WEP104); 447 int result; 448 int err = 0; 449 450 /* Set the channel */ 451 if (channel) { 452 chan = ieee80211_frequency_to_channel(channel->center_freq); 453 result = prism2_domibset_uint32(wlandev, 454 DIDMIB_DOT11PHY_DSSSTABLE_CURRENTCHANNEL, 455 chan); 456 if (result) 457 goto exit; 458 } 459 460 /* Set the authorization */ 461 if ((sme->auth_type == NL80211_AUTHTYPE_OPEN_SYSTEM) || 462 ((sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) && !is_wep)) 463 msg_join.authtype.data = P80211ENUM_authalg_opensystem; 464 else if ((sme->auth_type == NL80211_AUTHTYPE_SHARED_KEY) || 465 ((sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) && is_wep)) 466 msg_join.authtype.data = P80211ENUM_authalg_sharedkey; 467 else 468 netdev_warn(dev, 469 "Unhandled authorisation type for connect (%d)\n", 470 sme->auth_type); 471 472 /* Set the encryption - we only support wep */ 473 if (is_wep) { 474 if (sme->key) { 475 if (sme->key_idx >= NUM_WEPKEYS) 476 return -EINVAL; 477 478 result = prism2_domibset_uint32(wlandev, 479 DIDMIB_DOT11SMT_PRIVACYTABLE_WEPDEFAULTKEYID, 480 sme->key_idx); 481 if (result) 482 goto exit; 483 484 /* send key to driver */ 485 did = didmib_dot11smt_wepdefaultkeystable_key( 486 sme->key_idx + 1); 487 result = prism2_domibset_pstr32(wlandev, 488 did, sme->key_len, 489 (u8 *)sme->key); 490 if (result) 491 goto exit; 492 } 493 494 /* Assume we should set privacy invoked and exclude unencrypted 495 * We could possible use sme->privacy here, but the assumption 496 * seems reasonable anyways 497 */ 498 result = prism2_domibset_uint32(wlandev, 499 DIDMIB_DOT11SMT_PRIVACYTABLE_PRIVACYINVOKED, 500 P80211ENUM_truth_true); 501 if (result) 502 goto exit; 503 504 result = prism2_domibset_uint32(wlandev, 505 DIDMIB_DOT11SMT_PRIVACYTABLE_EXCLUDEUNENCRYPTED, 506 P80211ENUM_truth_true); 507 if (result) 508 goto exit; 509 510 } else { 511 /* Assume we should unset privacy invoked 512 * and exclude unencrypted 513 */ 514 result = prism2_domibset_uint32(wlandev, 515 DIDMIB_DOT11SMT_PRIVACYTABLE_PRIVACYINVOKED, 516 P80211ENUM_truth_false); 517 if (result) 518 goto exit; 519 520 result = prism2_domibset_uint32(wlandev, 521 DIDMIB_DOT11SMT_PRIVACYTABLE_EXCLUDEUNENCRYPTED, 522 P80211ENUM_truth_false); 523 if (result) 524 goto exit; 525 } 526 527 /* Now do the actual join. Note there is no way that I can 528 * see to request a specific bssid 529 */ 530 msg_join.msgcode = DIDMSG_LNXREQ_AUTOJOIN; 531 532 memcpy(msg_join.ssid.data.data, sme->ssid, length); 533 msg_join.ssid.data.len = length; 534 535 result = p80211req_dorequest(wlandev, (u8 *)&msg_join); 536 537 exit: 538 if (result) 539 err = -EFAULT; 540 541 return err; 542 } 543 544 static int prism2_disconnect(struct wiphy *wiphy, struct net_device *dev, 545 u16 reason_code) 546 { 547 struct wlandevice *wlandev = dev->ml_priv; 548 struct p80211msg_lnxreq_autojoin msg_join; 549 int result; 550 int err = 0; 551 552 /* Do a join, with a bogus ssid. Thats the only way I can think of */ 553 msg_join.msgcode = DIDMSG_LNXREQ_AUTOJOIN; 554 555 memcpy(msg_join.ssid.data.data, "---", 3); 556 msg_join.ssid.data.len = 3; 557 558 result = p80211req_dorequest(wlandev, (u8 *)&msg_join); 559 560 if (result) 561 err = -EFAULT; 562 563 return err; 564 } 565 566 static int prism2_join_ibss(struct wiphy *wiphy, struct net_device *dev, 567 struct cfg80211_ibss_params *params) 568 { 569 return -EOPNOTSUPP; 570 } 571 572 static int prism2_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 573 { 574 return -EOPNOTSUPP; 575 } 576 577 static int prism2_set_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev, 578 enum nl80211_tx_power_setting type, int mbm) 579 { 580 struct prism2_wiphy_private *priv = wiphy_priv(wiphy); 581 struct wlandevice *wlandev = priv->wlandev; 582 u32 data; 583 int result; 584 int err = 0; 585 586 if (type == NL80211_TX_POWER_AUTOMATIC) 587 data = 30; 588 else 589 data = MBM_TO_DBM(mbm); 590 591 result = prism2_domibset_uint32(wlandev, 592 DIDMIB_DOT11PHY_TXPOWERTABLE_CURRENTTXPOWERLEVEL, 593 data); 594 595 if (result) { 596 err = -EFAULT; 597 goto exit; 598 } 599 600 exit: 601 return err; 602 } 603 604 static int prism2_get_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev, 605 int *dbm) 606 { 607 struct prism2_wiphy_private *priv = wiphy_priv(wiphy); 608 struct wlandevice *wlandev = priv->wlandev; 609 struct p80211msg_dot11req_mibget msg; 610 struct p80211item_uint32 *mibitem; 611 int result; 612 int err = 0; 613 614 mibitem = (struct p80211item_uint32 *)&msg.mibattribute.data; 615 msg.msgcode = DIDMSG_DOT11REQ_MIBGET; 616 mibitem->did = DIDMIB_DOT11PHY_TXPOWERTABLE_CURRENTTXPOWERLEVEL; 617 618 result = p80211req_dorequest(wlandev, (u8 *)&msg); 619 620 if (result) { 621 err = -EFAULT; 622 goto exit; 623 } 624 625 *dbm = mibitem->data; 626 627 exit: 628 return err; 629 } 630 631 /* Interface callback functions, passing data back up to the cfg80211 layer */ 632 void prism2_connect_result(struct wlandevice *wlandev, u8 failed) 633 { 634 u16 status = failed ? 635 WLAN_STATUS_UNSPECIFIED_FAILURE : WLAN_STATUS_SUCCESS; 636 637 cfg80211_connect_result(wlandev->netdev, wlandev->bssid, 638 NULL, 0, NULL, 0, status, GFP_KERNEL); 639 } 640 641 void prism2_disconnected(struct wlandevice *wlandev) 642 { 643 cfg80211_disconnected(wlandev->netdev, 0, NULL, 644 0, false, GFP_KERNEL); 645 } 646 647 void prism2_roamed(struct wlandevice *wlandev) 648 { 649 struct cfg80211_roam_info roam_info = { 650 .bssid = wlandev->bssid, 651 }; 652 653 cfg80211_roamed(wlandev->netdev, &roam_info, GFP_KERNEL); 654 } 655 656 /* Structures for declaring wiphy interface */ 657 static const struct cfg80211_ops prism2_usb_cfg_ops = { 658 .change_virtual_intf = prism2_change_virtual_intf, 659 .add_key = prism2_add_key, 660 .get_key = prism2_get_key, 661 .del_key = prism2_del_key, 662 .set_default_key = prism2_set_default_key, 663 .get_station = prism2_get_station, 664 .scan = prism2_scan, 665 .set_wiphy_params = prism2_set_wiphy_params, 666 .connect = prism2_connect, 667 .disconnect = prism2_disconnect, 668 .join_ibss = prism2_join_ibss, 669 .leave_ibss = prism2_leave_ibss, 670 .set_tx_power = prism2_set_tx_power, 671 .get_tx_power = prism2_get_tx_power, 672 }; 673 674 /* Functions to create/free wiphy interface */ 675 static struct wiphy *wlan_create_wiphy(struct device *dev, 676 struct wlandevice *wlandev) 677 { 678 struct wiphy *wiphy; 679 struct prism2_wiphy_private *priv; 680 681 wiphy = wiphy_new(&prism2_usb_cfg_ops, sizeof(*priv)); 682 if (!wiphy) 683 return NULL; 684 685 priv = wiphy_priv(wiphy); 686 priv->wlandev = wlandev; 687 memcpy(priv->channels, prism2_channels, sizeof(prism2_channels)); 688 memcpy(priv->rates, prism2_rates, sizeof(prism2_rates)); 689 priv->band.channels = priv->channels; 690 priv->band.n_channels = ARRAY_SIZE(prism2_channels); 691 priv->band.bitrates = priv->rates; 692 priv->band.n_bitrates = ARRAY_SIZE(prism2_rates); 693 priv->band.band = NL80211_BAND_2GHZ; 694 priv->band.ht_cap.ht_supported = false; 695 wiphy->bands[NL80211_BAND_2GHZ] = &priv->band; 696 697 set_wiphy_dev(wiphy, dev); 698 wiphy->privid = prism2_wiphy_privid; 699 wiphy->max_scan_ssids = 1; 700 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) 701 | BIT(NL80211_IFTYPE_ADHOC); 702 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; 703 wiphy->n_cipher_suites = PRISM2_NUM_CIPHER_SUITES; 704 wiphy->cipher_suites = prism2_cipher_suites; 705 706 if (wiphy_register(wiphy) < 0) { 707 wiphy_free(wiphy); 708 return NULL; 709 } 710 711 return wiphy; 712 } 713 714 static void wlan_free_wiphy(struct wiphy *wiphy) 715 { 716 wiphy_unregister(wiphy); 717 wiphy_free(wiphy); 718 } 719