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 */
prism2_result2err(int prism2_result)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
prism2_domibset_uint32(struct wlandevice * wlandev,u32 did,u32 data)73 static int prism2_domibset_uint32(struct wlandevice *wlandev, u32 did, u32 data)
74 {
75 struct p80211msg_dot11req_mibset msg;
76 struct p80211item_uint32 *mibitem =
77 (struct p80211item_uint32 *)&msg.mibattribute.data;
78
79 msg.msgcode = DIDmsg_dot11req_mibset;
80 mibitem->did = did;
81 mibitem->data = data;
82
83 return p80211req_dorequest(wlandev, (u8 *)&msg);
84 }
85
prism2_domibset_pstr32(struct wlandevice * wlandev,u32 did,u8 len,const u8 * data)86 static int prism2_domibset_pstr32(struct wlandevice *wlandev,
87 u32 did, u8 len, const u8 *data)
88 {
89 struct p80211msg_dot11req_mibset msg;
90 struct p80211item_pstr32 *mibitem =
91 (struct p80211item_pstr32 *)&msg.mibattribute.data;
92
93 msg.msgcode = DIDmsg_dot11req_mibset;
94 mibitem->did = did;
95 mibitem->data.len = len;
96 memcpy(mibitem->data.data, data, len);
97
98 return p80211req_dorequest(wlandev, (u8 *)&msg);
99 }
100
101 /* The interface functions, called by the cfg80211 layer */
prism2_change_virtual_intf(struct wiphy * wiphy,struct net_device * dev,enum nl80211_iftype type,struct vif_params * params)102 static int prism2_change_virtual_intf(struct wiphy *wiphy,
103 struct net_device *dev,
104 enum nl80211_iftype type,
105 struct vif_params *params)
106 {
107 struct wlandevice *wlandev = dev->ml_priv;
108 u32 data;
109 int result;
110 int err = 0;
111
112 switch (type) {
113 case NL80211_IFTYPE_ADHOC:
114 if (wlandev->macmode == WLAN_MACMODE_IBSS_STA)
115 goto exit;
116 wlandev->macmode = WLAN_MACMODE_IBSS_STA;
117 data = 0;
118 break;
119 case NL80211_IFTYPE_STATION:
120 if (wlandev->macmode == WLAN_MACMODE_ESS_STA)
121 goto exit;
122 wlandev->macmode = WLAN_MACMODE_ESS_STA;
123 data = 1;
124 break;
125 default:
126 netdev_warn(dev, "Operation mode: %d not support\n", type);
127 return -EOPNOTSUPP;
128 }
129
130 /* Set Operation mode to the PORT TYPE RID */
131 result = prism2_domibset_uint32(wlandev,
132 DIDmib_p2_p2Static_p2CnfPortType,
133 data);
134
135 if (result)
136 err = -EFAULT;
137
138 dev->ieee80211_ptr->iftype = type;
139
140 exit:
141 return err;
142 }
143
prism2_add_key(struct wiphy * wiphy,struct net_device * dev,u8 key_index,bool pairwise,const u8 * mac_addr,struct key_params * params)144 static int prism2_add_key(struct wiphy *wiphy, struct net_device *dev,
145 u8 key_index, bool pairwise, const u8 *mac_addr,
146 struct key_params *params)
147 {
148 struct wlandevice *wlandev = dev->ml_priv;
149 u32 did;
150
151 int err = 0;
152 int result = 0;
153
154 if (key_index >= NUM_WEPKEYS)
155 return -EINVAL;
156
157 switch (params->cipher) {
158 case WLAN_CIPHER_SUITE_WEP40:
159 case WLAN_CIPHER_SUITE_WEP104:
160 result = prism2_domibset_uint32(wlandev,
161 DIDmib_dot11smt_dot11PrivacyTable_dot11WEPDefaultKeyID,
162 key_index);
163 if (result)
164 goto exit;
165
166 /* send key to driver */
167 did = DIDmib_dot11smt_dot11WEPDefaultKeysTable_key(key_index + 1);
168
169 result = prism2_domibset_pstr32(wlandev, did,
170 params->key_len, params->key);
171 if (result)
172 goto exit;
173 break;
174
175 default:
176 pr_debug("Unsupported cipher suite\n");
177 result = 1;
178 }
179
180 exit:
181 if (result)
182 err = -EFAULT;
183
184 return err;
185 }
186
prism2_get_key(struct wiphy * wiphy,struct net_device * dev,u8 key_index,bool pairwise,const u8 * mac_addr,void * cookie,void (* callback)(void * cookie,struct key_params *))187 static int prism2_get_key(struct wiphy *wiphy, struct net_device *dev,
188 u8 key_index, bool pairwise,
189 const u8 *mac_addr, void *cookie,
190 void (*callback)(void *cookie, struct key_params*))
191 {
192 struct wlandevice *wlandev = dev->ml_priv;
193 struct key_params params;
194 int len;
195
196 if (key_index >= NUM_WEPKEYS)
197 return -EINVAL;
198
199 len = wlandev->wep_keylens[key_index];
200 memset(¶ms, 0, sizeof(params));
201
202 if (len == 13)
203 params.cipher = WLAN_CIPHER_SUITE_WEP104;
204 else if (len == 5)
205 params.cipher = WLAN_CIPHER_SUITE_WEP104;
206 else
207 return -ENOENT;
208 params.key_len = len;
209 params.key = wlandev->wep_keys[key_index];
210 params.seq_len = 0;
211
212 callback(cookie, ¶ms);
213
214 return 0;
215 }
216
prism2_del_key(struct wiphy * wiphy,struct net_device * dev,u8 key_index,bool pairwise,const u8 * mac_addr)217 static int prism2_del_key(struct wiphy *wiphy, struct net_device *dev,
218 u8 key_index, bool pairwise, const u8 *mac_addr)
219 {
220 struct wlandevice *wlandev = dev->ml_priv;
221 u32 did;
222 int err = 0;
223 int result = 0;
224
225 /* There is no direct way in the hardware (AFAIK) of removing
226 * a key, so we will cheat by setting the key to a bogus value
227 */
228
229 if (key_index >= NUM_WEPKEYS)
230 return -EINVAL;
231
232 /* send key to driver */
233 did = DIDmib_dot11smt_dot11WEPDefaultKeysTable_key(key_index + 1);
234 result = prism2_domibset_pstr32(wlandev, did, 13, "0000000000000");
235
236 if (result)
237 err = -EFAULT;
238
239 return err;
240 }
241
prism2_set_default_key(struct wiphy * wiphy,struct net_device * dev,u8 key_index,bool unicast,bool multicast)242 static int prism2_set_default_key(struct wiphy *wiphy, struct net_device *dev,
243 u8 key_index, bool unicast, bool multicast)
244 {
245 struct wlandevice *wlandev = dev->ml_priv;
246
247 int err = 0;
248 int result = 0;
249
250 result = prism2_domibset_uint32(wlandev,
251 DIDmib_dot11smt_dot11PrivacyTable_dot11WEPDefaultKeyID,
252 key_index);
253
254 if (result)
255 err = -EFAULT;
256
257 return err;
258 }
259
prism2_get_station(struct wiphy * wiphy,struct net_device * dev,const u8 * mac,struct station_info * sinfo)260 static int prism2_get_station(struct wiphy *wiphy, struct net_device *dev,
261 const u8 *mac, struct station_info *sinfo)
262 {
263 struct wlandevice *wlandev = dev->ml_priv;
264 struct p80211msg_lnxreq_commsquality quality;
265 int result;
266
267 memset(sinfo, 0, sizeof(*sinfo));
268
269 if (!wlandev || (wlandev->msdstate != WLAN_MSD_RUNNING))
270 return -EOPNOTSUPP;
271
272 /* build request message */
273 quality.msgcode = DIDmsg_lnxreq_commsquality;
274 quality.dbm.data = P80211ENUM_truth_true;
275 quality.dbm.status = P80211ENUM_msgitem_status_data_ok;
276
277 /* send message to nsd */
278 if (!wlandev->mlmerequest)
279 return -EOPNOTSUPP;
280
281 result = wlandev->mlmerequest(wlandev, (struct p80211msg *)&quality);
282
283 if (result == 0) {
284 sinfo->txrate.legacy = quality.txrate.data;
285 sinfo->filled |= BIT(NL80211_STA_INFO_TX_BITRATE);
286 sinfo->signal = quality.level.data;
287 sinfo->filled |= BIT(NL80211_STA_INFO_SIGNAL);
288 }
289
290 return result;
291 }
292
prism2_scan(struct wiphy * wiphy,struct cfg80211_scan_request * request)293 static int prism2_scan(struct wiphy *wiphy,
294 struct cfg80211_scan_request *request)
295 {
296 struct net_device *dev;
297 struct prism2_wiphy_private *priv = wiphy_priv(wiphy);
298 struct wlandevice *wlandev;
299 struct p80211msg_dot11req_scan msg1;
300 struct p80211msg_dot11req_scan_results msg2;
301 struct cfg80211_bss *bss;
302 struct cfg80211_scan_info info = {};
303
304 int result;
305 int err = 0;
306 int numbss = 0;
307 int i = 0;
308 u8 ie_buf[46];
309 int ie_len;
310
311 if (!request)
312 return -EINVAL;
313
314 dev = request->wdev->netdev;
315 wlandev = dev->ml_priv;
316
317 if (priv->scan_request && priv->scan_request != request)
318 return -EBUSY;
319
320 if (wlandev->macmode == WLAN_MACMODE_ESS_AP) {
321 netdev_err(dev, "Can't scan in AP mode\n");
322 return -EOPNOTSUPP;
323 }
324
325 priv->scan_request = request;
326
327 memset(&msg1, 0x00, sizeof(msg1));
328 msg1.msgcode = DIDmsg_dot11req_scan;
329 msg1.bsstype.data = P80211ENUM_bsstype_any;
330
331 memset(&msg1.bssid.data.data, 0xFF, sizeof(msg1.bssid.data.data));
332 msg1.bssid.data.len = 6;
333
334 if (request->n_ssids > 0) {
335 msg1.scantype.data = P80211ENUM_scantype_active;
336 msg1.ssid.data.len = request->ssids->ssid_len;
337 memcpy(msg1.ssid.data.data,
338 request->ssids->ssid, request->ssids->ssid_len);
339 } else {
340 msg1.scantype.data = 0;
341 }
342 msg1.probedelay.data = 0;
343
344 for (i = 0;
345 (i < request->n_channels) && i < ARRAY_SIZE(prism2_channels);
346 i++)
347 msg1.channellist.data.data[i] =
348 ieee80211_frequency_to_channel(
349 request->channels[i]->center_freq);
350 msg1.channellist.data.len = request->n_channels;
351
352 msg1.maxchanneltime.data = 250;
353 msg1.minchanneltime.data = 200;
354
355 result = p80211req_dorequest(wlandev, (u8 *)&msg1);
356 if (result) {
357 err = prism2_result2err(msg1.resultcode.data);
358 goto exit;
359 }
360 /* Now retrieve scan results */
361 numbss = msg1.numbss.data;
362
363 for (i = 0; i < numbss; i++) {
364 int freq;
365
366 memset(&msg2, 0, sizeof(msg2));
367 msg2.msgcode = DIDmsg_dot11req_scan_results;
368 msg2.bssindex.data = i;
369
370 result = p80211req_dorequest(wlandev, (u8 *)&msg2);
371 if ((result != 0) ||
372 (msg2.resultcode.data != P80211ENUM_resultcode_success)) {
373 break;
374 }
375
376 ie_buf[0] = WLAN_EID_SSID;
377 ie_buf[1] = msg2.ssid.data.len;
378 ie_len = ie_buf[1] + 2;
379 memcpy(&ie_buf[2], &msg2.ssid.data.data, msg2.ssid.data.len);
380 freq = ieee80211_channel_to_frequency(msg2.dschannel.data,
381 NL80211_BAND_2GHZ);
382 bss = cfg80211_inform_bss(wiphy,
383 ieee80211_get_channel(wiphy, freq),
384 CFG80211_BSS_FTYPE_UNKNOWN,
385 (const u8 *)&msg2.bssid.data.data,
386 msg2.timestamp.data, msg2.capinfo.data,
387 msg2.beaconperiod.data,
388 ie_buf,
389 ie_len,
390 (msg2.signal.data - 65536) * 100, /* Conversion to signed type */
391 GFP_KERNEL
392 );
393
394 if (!bss) {
395 err = -ENOMEM;
396 goto exit;
397 }
398
399 cfg80211_put_bss(wiphy, bss);
400 }
401
402 if (result)
403 err = prism2_result2err(msg2.resultcode.data);
404
405 exit:
406 info.aborted = !!(err);
407 cfg80211_scan_done(request, &info);
408 priv->scan_request = NULL;
409 return err;
410 }
411
prism2_set_wiphy_params(struct wiphy * wiphy,u32 changed)412 static int prism2_set_wiphy_params(struct wiphy *wiphy, u32 changed)
413 {
414 struct prism2_wiphy_private *priv = wiphy_priv(wiphy);
415 struct wlandevice *wlandev = priv->wlandev;
416 u32 data;
417 int result;
418 int err = 0;
419
420 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
421 if (wiphy->rts_threshold == -1)
422 data = 2347;
423 else
424 data = wiphy->rts_threshold;
425
426 result = prism2_domibset_uint32(wlandev,
427 DIDmib_dot11mac_dot11OperationTable_dot11RTSThreshold,
428 data);
429 if (result) {
430 err = -EFAULT;
431 goto exit;
432 }
433 }
434
435 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
436 if (wiphy->frag_threshold == -1)
437 data = 2346;
438 else
439 data = wiphy->frag_threshold;
440
441 result = prism2_domibset_uint32(wlandev,
442 DIDmib_dot11mac_dot11OperationTable_dot11FragmentationThreshold,
443 data);
444 if (result) {
445 err = -EFAULT;
446 goto exit;
447 }
448 }
449
450 exit:
451 return err;
452 }
453
prism2_connect(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_connect_params * sme)454 static int prism2_connect(struct wiphy *wiphy, struct net_device *dev,
455 struct cfg80211_connect_params *sme)
456 {
457 struct wlandevice *wlandev = dev->ml_priv;
458 struct ieee80211_channel *channel = sme->channel;
459 struct p80211msg_lnxreq_autojoin msg_join;
460 u32 did;
461 int length = sme->ssid_len;
462 int chan = -1;
463 int is_wep = (sme->crypto.cipher_group == WLAN_CIPHER_SUITE_WEP40) ||
464 (sme->crypto.cipher_group == WLAN_CIPHER_SUITE_WEP104);
465 int result;
466 int err = 0;
467
468 /* Set the channel */
469 if (channel) {
470 chan = ieee80211_frequency_to_channel(channel->center_freq);
471 result = prism2_domibset_uint32(wlandev,
472 DIDmib_dot11phy_dot11PhyDSSSTable_dot11CurrentChannel,
473 chan);
474 if (result)
475 goto exit;
476 }
477
478 /* Set the authorization */
479 if ((sme->auth_type == NL80211_AUTHTYPE_OPEN_SYSTEM) ||
480 ((sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) && !is_wep))
481 msg_join.authtype.data = P80211ENUM_authalg_opensystem;
482 else if ((sme->auth_type == NL80211_AUTHTYPE_SHARED_KEY) ||
483 ((sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) && is_wep))
484 msg_join.authtype.data = P80211ENUM_authalg_sharedkey;
485 else
486 netdev_warn(dev,
487 "Unhandled authorisation type for connect (%d)\n",
488 sme->auth_type);
489
490 /* Set the encryption - we only support wep */
491 if (is_wep) {
492 if (sme->key) {
493 if (sme->key_idx >= NUM_WEPKEYS)
494 return -EINVAL;
495
496 result = prism2_domibset_uint32(wlandev,
497 DIDmib_dot11smt_dot11PrivacyTable_dot11WEPDefaultKeyID,
498 sme->key_idx);
499 if (result)
500 goto exit;
501
502 /* send key to driver */
503 did = DIDmib_dot11smt_dot11WEPDefaultKeysTable_key(
504 sme->key_idx + 1);
505 result = prism2_domibset_pstr32(wlandev,
506 did, sme->key_len,
507 (u8 *)sme->key);
508 if (result)
509 goto exit;
510 }
511
512 /* Assume we should set privacy invoked and exclude unencrypted
513 * We could possible use sme->privacy here, but the assumption
514 * seems reasonable anyways
515 */
516 result = prism2_domibset_uint32(wlandev,
517 DIDmib_dot11smt_dot11PrivacyTable_dot11PrivacyInvoked,
518 P80211ENUM_truth_true);
519 if (result)
520 goto exit;
521
522 result = prism2_domibset_uint32(wlandev,
523 DIDmib_dot11smt_dot11PrivacyTable_dot11ExcludeUnencrypted,
524 P80211ENUM_truth_true);
525 if (result)
526 goto exit;
527
528 } else {
529 /* Assume we should unset privacy invoked
530 * and exclude unencrypted
531 */
532 result = prism2_domibset_uint32(wlandev,
533 DIDmib_dot11smt_dot11PrivacyTable_dot11PrivacyInvoked,
534 P80211ENUM_truth_false);
535 if (result)
536 goto exit;
537
538 result = prism2_domibset_uint32(wlandev,
539 DIDmib_dot11smt_dot11PrivacyTable_dot11ExcludeUnencrypted,
540 P80211ENUM_truth_false);
541 if (result)
542 goto exit;
543 }
544
545 /* Now do the actual join. Note there is no way that I can
546 * see to request a specific bssid
547 */
548 msg_join.msgcode = DIDmsg_lnxreq_autojoin;
549
550 memcpy(msg_join.ssid.data.data, sme->ssid, length);
551 msg_join.ssid.data.len = length;
552
553 result = p80211req_dorequest(wlandev, (u8 *)&msg_join);
554
555 exit:
556 if (result)
557 err = -EFAULT;
558
559 return err;
560 }
561
prism2_disconnect(struct wiphy * wiphy,struct net_device * dev,u16 reason_code)562 static int prism2_disconnect(struct wiphy *wiphy, struct net_device *dev,
563 u16 reason_code)
564 {
565 struct wlandevice *wlandev = dev->ml_priv;
566 struct p80211msg_lnxreq_autojoin msg_join;
567 int result;
568 int err = 0;
569
570 /* Do a join, with a bogus ssid. Thats the only way I can think of */
571 msg_join.msgcode = DIDmsg_lnxreq_autojoin;
572
573 memcpy(msg_join.ssid.data.data, "---", 3);
574 msg_join.ssid.data.len = 3;
575
576 result = p80211req_dorequest(wlandev, (u8 *)&msg_join);
577
578 if (result)
579 err = -EFAULT;
580
581 return err;
582 }
583
prism2_join_ibss(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ibss_params * params)584 static int prism2_join_ibss(struct wiphy *wiphy, struct net_device *dev,
585 struct cfg80211_ibss_params *params)
586 {
587 return -EOPNOTSUPP;
588 }
589
prism2_leave_ibss(struct wiphy * wiphy,struct net_device * dev)590 static int prism2_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
591 {
592 return -EOPNOTSUPP;
593 }
594
prism2_set_tx_power(struct wiphy * wiphy,struct wireless_dev * wdev,enum nl80211_tx_power_setting type,int mbm)595 static int prism2_set_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev,
596 enum nl80211_tx_power_setting type, int mbm)
597 {
598 struct prism2_wiphy_private *priv = wiphy_priv(wiphy);
599 struct wlandevice *wlandev = priv->wlandev;
600 u32 data;
601 int result;
602 int err = 0;
603
604 if (type == NL80211_TX_POWER_AUTOMATIC)
605 data = 30;
606 else
607 data = MBM_TO_DBM(mbm);
608
609 result = prism2_domibset_uint32(wlandev,
610 DIDmib_dot11phy_dot11PhyTxPowerTable_dot11CurrentTxPowerLevel,
611 data);
612
613 if (result) {
614 err = -EFAULT;
615 goto exit;
616 }
617
618 exit:
619 return err;
620 }
621
prism2_get_tx_power(struct wiphy * wiphy,struct wireless_dev * wdev,int * dbm)622 static int prism2_get_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev,
623 int *dbm)
624 {
625 struct prism2_wiphy_private *priv = wiphy_priv(wiphy);
626 struct wlandevice *wlandev = priv->wlandev;
627 struct p80211msg_dot11req_mibget msg;
628 struct p80211item_uint32 *mibitem;
629 int result;
630 int err = 0;
631
632 mibitem = (struct p80211item_uint32 *)&msg.mibattribute.data;
633 msg.msgcode = DIDmsg_dot11req_mibget;
634 mibitem->did =
635 DIDmib_dot11phy_dot11PhyTxPowerTable_dot11CurrentTxPowerLevel;
636
637 result = p80211req_dorequest(wlandev, (u8 *)&msg);
638
639 if (result) {
640 err = -EFAULT;
641 goto exit;
642 }
643
644 *dbm = mibitem->data;
645
646 exit:
647 return err;
648 }
649
650 /* Interface callback functions, passing data back up to the cfg80211 layer */
prism2_connect_result(struct wlandevice * wlandev,u8 failed)651 void prism2_connect_result(struct wlandevice *wlandev, u8 failed)
652 {
653 u16 status = failed ?
654 WLAN_STATUS_UNSPECIFIED_FAILURE : WLAN_STATUS_SUCCESS;
655
656 cfg80211_connect_result(wlandev->netdev, wlandev->bssid,
657 NULL, 0, NULL, 0, status, GFP_KERNEL);
658 }
659
prism2_disconnected(struct wlandevice * wlandev)660 void prism2_disconnected(struct wlandevice *wlandev)
661 {
662 cfg80211_disconnected(wlandev->netdev, 0, NULL,
663 0, false, GFP_KERNEL);
664 }
665
prism2_roamed(struct wlandevice * wlandev)666 void prism2_roamed(struct wlandevice *wlandev)
667 {
668 struct cfg80211_roam_info roam_info = {
669 .bssid = wlandev->bssid,
670 };
671
672 cfg80211_roamed(wlandev->netdev, &roam_info, GFP_KERNEL);
673 }
674
675 /* Structures for declaring wiphy interface */
676 static const struct cfg80211_ops prism2_usb_cfg_ops = {
677 .change_virtual_intf = prism2_change_virtual_intf,
678 .add_key = prism2_add_key,
679 .get_key = prism2_get_key,
680 .del_key = prism2_del_key,
681 .set_default_key = prism2_set_default_key,
682 .get_station = prism2_get_station,
683 .scan = prism2_scan,
684 .set_wiphy_params = prism2_set_wiphy_params,
685 .connect = prism2_connect,
686 .disconnect = prism2_disconnect,
687 .join_ibss = prism2_join_ibss,
688 .leave_ibss = prism2_leave_ibss,
689 .set_tx_power = prism2_set_tx_power,
690 .get_tx_power = prism2_get_tx_power,
691 };
692
693 /* Functions to create/free wiphy interface */
wlan_create_wiphy(struct device * dev,struct wlandevice * wlandev)694 static struct wiphy *wlan_create_wiphy(struct device *dev, struct wlandevice *wlandev)
695 {
696 struct wiphy *wiphy;
697 struct prism2_wiphy_private *priv;
698
699 wiphy = wiphy_new(&prism2_usb_cfg_ops, sizeof(*priv));
700 if (!wiphy)
701 return NULL;
702
703 priv = wiphy_priv(wiphy);
704 priv->wlandev = wlandev;
705 memcpy(priv->channels, prism2_channels, sizeof(prism2_channels));
706 memcpy(priv->rates, prism2_rates, sizeof(prism2_rates));
707 priv->band.channels = priv->channels;
708 priv->band.n_channels = ARRAY_SIZE(prism2_channels);
709 priv->band.bitrates = priv->rates;
710 priv->band.n_bitrates = ARRAY_SIZE(prism2_rates);
711 priv->band.band = NL80211_BAND_2GHZ;
712 priv->band.ht_cap.ht_supported = false;
713 wiphy->bands[NL80211_BAND_2GHZ] = &priv->band;
714
715 set_wiphy_dev(wiphy, dev);
716 wiphy->privid = prism2_wiphy_privid;
717 wiphy->max_scan_ssids = 1;
718 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION)
719 | BIT(NL80211_IFTYPE_ADHOC);
720 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
721 wiphy->n_cipher_suites = PRISM2_NUM_CIPHER_SUITES;
722 wiphy->cipher_suites = prism2_cipher_suites;
723
724 if (wiphy_register(wiphy) < 0) {
725 wiphy_free(wiphy);
726 return NULL;
727 }
728
729 return wiphy;
730 }
731
wlan_free_wiphy(struct wiphy * wiphy)732 static void wlan_free_wiphy(struct wiphy *wiphy)
733 {
734 wiphy_unregister(wiphy);
735 wiphy_free(wiphy);
736 }
737