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,
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
prism2_domibset_pstr32(struct wlandevice * wlandev,u32 did,u8 len,const u8 * data)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 */
prism2_change_virtual_intf(struct wiphy * wiphy,struct net_device * dev,enum nl80211_iftype type,struct vif_params * params)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
prism2_add_key(struct wiphy * wiphy,struct net_device * dev,int link_id,u8 key_index,bool pairwise,const u8 * mac_addr,struct key_params * params)145 static int prism2_add_key(struct wiphy *wiphy, struct net_device *dev,
146 int link_id, u8 key_index, bool pairwise,
147 const u8 *mac_addr, 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
prism2_get_key(struct wiphy * wiphy,struct net_device * dev,int link_id,u8 key_index,bool pairwise,const u8 * mac_addr,void * cookie,void (* callback)(void * cookie,struct key_params *))174 static int prism2_get_key(struct wiphy *wiphy, struct net_device *dev,
175 int link_id, 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
prism2_del_key(struct wiphy * wiphy,struct net_device * dev,int link_id,u8 key_index,bool pairwise,const u8 * mac_addr)204 static int prism2_del_key(struct wiphy *wiphy, struct net_device *dev,
205 int link_id, u8 key_index, bool pairwise,
206 const u8 *mac_addr)
207 {
208 struct wlandevice *wlandev = dev->ml_priv;
209 u32 did;
210 int err = 0;
211 int result = 0;
212
213 /* There is no direct way in the hardware (AFAIK) of removing
214 * a key, so we will cheat by setting the key to a bogus value
215 */
216
217 if (key_index >= NUM_WEPKEYS)
218 return -EINVAL;
219
220 /* send key to driver */
221 did = didmib_dot11smt_wepdefaultkeystable_key(key_index + 1);
222 result = prism2_domibset_pstr32(wlandev, did, 13, "0000000000000");
223
224 if (result)
225 err = -EFAULT;
226
227 return err;
228 }
229
prism2_set_default_key(struct wiphy * wiphy,struct net_device * dev,int link_id,u8 key_index,bool unicast,bool multicast)230 static int prism2_set_default_key(struct wiphy *wiphy, struct net_device *dev,
231 int link_id, u8 key_index, bool unicast,
232 bool multicast)
233 {
234 struct wlandevice *wlandev = dev->ml_priv;
235
236 return prism2_domibset_uint32(wlandev,
237 DIDMIB_DOT11SMT_PRIVACYTABLE_WEPDEFAULTKEYID,
238 key_index);
239 }
240
prism2_get_station(struct wiphy * wiphy,struct net_device * dev,const u8 * mac,struct station_info * sinfo)241 static int prism2_get_station(struct wiphy *wiphy, struct net_device *dev,
242 const u8 *mac, struct station_info *sinfo)
243 {
244 struct wlandevice *wlandev = dev->ml_priv;
245 struct p80211msg_lnxreq_commsquality quality;
246 int result;
247
248 memset(sinfo, 0, sizeof(*sinfo));
249
250 if (!wlandev || (wlandev->msdstate != WLAN_MSD_RUNNING))
251 return -EOPNOTSUPP;
252
253 /* build request message */
254 quality.msgcode = DIDMSG_LNXREQ_COMMSQUALITY;
255 quality.dbm.data = P80211ENUM_truth_true;
256 quality.dbm.status = P80211ENUM_msgitem_status_data_ok;
257
258 /* send message to nsd */
259 if (!wlandev->mlmerequest)
260 return -EOPNOTSUPP;
261
262 result = wlandev->mlmerequest(wlandev, (struct p80211msg *)&quality);
263
264 if (result == 0) {
265 sinfo->txrate.legacy = quality.txrate.data;
266 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE);
267 sinfo->signal = quality.level.data;
268 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL);
269 }
270
271 return result;
272 }
273
prism2_scan(struct wiphy * wiphy,struct cfg80211_scan_request * request)274 static int prism2_scan(struct wiphy *wiphy,
275 struct cfg80211_scan_request *request)
276 {
277 struct net_device *dev;
278 struct prism2_wiphy_private *priv = wiphy_priv(wiphy);
279 struct wlandevice *wlandev;
280 struct p80211msg_dot11req_scan msg1;
281 struct p80211msg_dot11req_scan_results *msg2;
282 struct cfg80211_bss *bss;
283 struct cfg80211_scan_info info = {};
284
285 int result;
286 int err = 0;
287 int numbss = 0;
288 int i = 0;
289 u8 ie_buf[46];
290 int ie_len;
291
292 if (!request)
293 return -EINVAL;
294
295 dev = request->wdev->netdev;
296 wlandev = dev->ml_priv;
297
298 if (priv->scan_request && priv->scan_request != request)
299 return -EBUSY;
300
301 if (wlandev->macmode == WLAN_MACMODE_ESS_AP) {
302 netdev_err(dev, "Can't scan in AP mode\n");
303 return -EOPNOTSUPP;
304 }
305
306 msg2 = kzalloc(sizeof(*msg2), GFP_KERNEL);
307 if (!msg2)
308 return -ENOMEM;
309
310 priv->scan_request = request;
311
312 memset(&msg1, 0x00, sizeof(msg1));
313 msg1.msgcode = DIDMSG_DOT11REQ_SCAN;
314 msg1.bsstype.data = P80211ENUM_bsstype_any;
315
316 memset(&msg1.bssid.data.data, 0xFF, sizeof(msg1.bssid.data.data));
317 msg1.bssid.data.len = 6;
318
319 if (request->n_ssids > 0) {
320 msg1.scantype.data = P80211ENUM_scantype_active;
321 msg1.ssid.data.len = request->ssids->ssid_len;
322 memcpy(msg1.ssid.data.data,
323 request->ssids->ssid, request->ssids->ssid_len);
324 } else {
325 msg1.scantype.data = 0;
326 }
327 msg1.probedelay.data = 0;
328
329 for (i = 0;
330 (i < request->n_channels) && i < ARRAY_SIZE(prism2_channels);
331 i++)
332 msg1.channellist.data.data[i] =
333 ieee80211_frequency_to_channel(request->channels[i]->center_freq);
334 msg1.channellist.data.len = request->n_channels;
335
336 msg1.maxchanneltime.data = 250;
337 msg1.minchanneltime.data = 200;
338
339 result = p80211req_dorequest(wlandev, (u8 *)&msg1);
340 if (result) {
341 err = prism2_result2err(msg1.resultcode.data);
342 goto exit;
343 }
344 /* Now retrieve scan results */
345 numbss = msg1.numbss.data;
346
347 for (i = 0; i < numbss; i++) {
348 int freq;
349
350 msg2->msgcode = DIDMSG_DOT11REQ_SCAN_RESULTS;
351 msg2->bssindex.data = i;
352
353 result = p80211req_dorequest(wlandev, (u8 *)&msg2);
354 if ((result != 0) ||
355 (msg2->resultcode.data != P80211ENUM_resultcode_success)) {
356 break;
357 }
358
359 ie_buf[0] = WLAN_EID_SSID;
360 ie_buf[1] = msg2->ssid.data.len;
361 ie_len = ie_buf[1] + 2;
362 memcpy(&ie_buf[2], &msg2->ssid.data.data, msg2->ssid.data.len);
363 freq = ieee80211_channel_to_frequency(msg2->dschannel.data,
364 NL80211_BAND_2GHZ);
365 bss = cfg80211_inform_bss(wiphy,
366 ieee80211_get_channel(wiphy, freq),
367 CFG80211_BSS_FTYPE_UNKNOWN,
368 (const u8 *)&msg2->bssid.data.data,
369 msg2->timestamp.data, msg2->capinfo.data,
370 msg2->beaconperiod.data,
371 ie_buf,
372 ie_len,
373 (msg2->signal.data - 65536) * 100, /* Conversion to signed type */
374 GFP_KERNEL);
375
376 if (!bss) {
377 err = -ENOMEM;
378 goto exit;
379 }
380
381 cfg80211_put_bss(wiphy, bss);
382 }
383
384 if (result)
385 err = prism2_result2err(msg2->resultcode.data);
386
387 exit:
388 info.aborted = !!(err);
389 cfg80211_scan_done(request, &info);
390 priv->scan_request = NULL;
391 kfree(msg2);
392 return err;
393 }
394
prism2_set_wiphy_params(struct wiphy * wiphy,u32 changed)395 static int prism2_set_wiphy_params(struct wiphy *wiphy, u32 changed)
396 {
397 struct prism2_wiphy_private *priv = wiphy_priv(wiphy);
398 struct wlandevice *wlandev = priv->wlandev;
399 u32 data;
400 int result;
401 int err = 0;
402
403 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
404 if (wiphy->rts_threshold == -1)
405 data = 2347;
406 else
407 data = wiphy->rts_threshold;
408
409 result = prism2_domibset_uint32(wlandev,
410 DIDMIB_DOT11MAC_OPERATIONTABLE_RTSTHRESHOLD,
411 data);
412 if (result) {
413 err = -EFAULT;
414 goto exit;
415 }
416 }
417
418 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
419 if (wiphy->frag_threshold == -1)
420 data = 2346;
421 else
422 data = wiphy->frag_threshold;
423
424 result = prism2_domibset_uint32(wlandev,
425 DIDMIB_DOT11MAC_OPERATIONTABLE_FRAGMENTATIONTHRESHOLD,
426 data);
427 if (result) {
428 err = -EFAULT;
429 goto exit;
430 }
431 }
432
433 exit:
434 return err;
435 }
436
prism2_connect(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_connect_params * sme)437 static int prism2_connect(struct wiphy *wiphy, struct net_device *dev,
438 struct cfg80211_connect_params *sme)
439 {
440 struct wlandevice *wlandev = dev->ml_priv;
441 struct ieee80211_channel *channel = sme->channel;
442 struct p80211msg_lnxreq_autojoin msg_join;
443 u32 did;
444 int length = sme->ssid_len;
445 int chan = -1;
446 int is_wep = (sme->crypto.cipher_group == WLAN_CIPHER_SUITE_WEP40) ||
447 (sme->crypto.cipher_group == WLAN_CIPHER_SUITE_WEP104);
448 int result;
449 int err = 0;
450
451 /* Set the channel */
452 if (channel) {
453 chan = ieee80211_frequency_to_channel(channel->center_freq);
454 result = prism2_domibset_uint32(wlandev,
455 DIDMIB_DOT11PHY_DSSSTABLE_CURRENTCHANNEL,
456 chan);
457 if (result)
458 goto exit;
459 }
460
461 /* Set the authorization */
462 if ((sme->auth_type == NL80211_AUTHTYPE_OPEN_SYSTEM) ||
463 ((sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) && !is_wep))
464 msg_join.authtype.data = P80211ENUM_authalg_opensystem;
465 else if ((sme->auth_type == NL80211_AUTHTYPE_SHARED_KEY) ||
466 ((sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) && is_wep))
467 msg_join.authtype.data = P80211ENUM_authalg_sharedkey;
468 else
469 netdev_warn(dev,
470 "Unhandled authorisation type for connect (%d)\n",
471 sme->auth_type);
472
473 /* Set the encryption - we only support wep */
474 if (is_wep) {
475 if (sme->key) {
476 if (sme->key_idx >= NUM_WEPKEYS)
477 return -EINVAL;
478
479 result = prism2_domibset_uint32(wlandev,
480 DIDMIB_DOT11SMT_PRIVACYTABLE_WEPDEFAULTKEYID,
481 sme->key_idx);
482 if (result)
483 goto exit;
484
485 /* send key to driver */
486 did = didmib_dot11smt_wepdefaultkeystable_key(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
prism2_disconnect(struct wiphy * wiphy,struct net_device * dev,u16 reason_code)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
prism2_join_ibss(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ibss_params * params)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
prism2_leave_ibss(struct wiphy * wiphy,struct net_device * dev)572 static int prism2_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
573 {
574 return -EOPNOTSUPP;
575 }
576
prism2_set_tx_power(struct wiphy * wiphy,struct wireless_dev * wdev,enum nl80211_tx_power_setting type,int mbm)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
prism2_get_tx_power(struct wiphy * wiphy,struct wireless_dev * wdev,int * dbm)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 */
prism2_connect_result(struct wlandevice * wlandev,u8 failed)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
prism2_disconnected(struct wlandevice * wlandev)641 void prism2_disconnected(struct wlandevice *wlandev)
642 {
643 cfg80211_disconnected(wlandev->netdev, 0, NULL,
644 0, false, GFP_KERNEL);
645 }
646
prism2_roamed(struct wlandevice * wlandev)647 void prism2_roamed(struct wlandevice *wlandev)
648 {
649 struct cfg80211_roam_info roam_info = {
650 .links[0].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 */
wlan_create_wiphy(struct device * dev,struct wlandevice * wlandev)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
wlan_free_wiphy(struct wiphy * wiphy)714 static void wlan_free_wiphy(struct wiphy *wiphy)
715 {
716 wiphy_unregister(wiphy);
717 wiphy_free(wiphy);
718 }
719