1 /* IEEE 802.11 SoftMAC layer
2 * Copyright (c) 2005 Andrea Merello <andreamrl@tiscali.it>
3 *
4 * Mostly extracted from the rtl8180-sa2400 driver for the
5 * in-kernel generic ieee802.11 stack.
6 *
7 * Some pieces of code might be stolen from ipw2100 driver
8 * copyright of who own it's copyright ;-)
9 *
10 * PS wx handler mostly stolen from hostap, copyright who
11 * own it's copyright ;-)
12 *
13 * released under the GPL
14 */
15
16
17 #include <linux/etherdevice.h>
18
19 #include "rtllib.h"
20 #include "dot11d.h"
21 /* FIXME: add A freqs */
22
23 const long rtllib_wlan_frequencies[] = {
24 2412, 2417, 2422, 2427,
25 2432, 2437, 2442, 2447,
26 2452, 2457, 2462, 2467,
27 2472, 2484
28 };
29 EXPORT_SYMBOL(rtllib_wlan_frequencies);
30
31
rtllib_wx_set_freq(struct rtllib_device * ieee,struct iw_request_info * a,union iwreq_data * wrqu,char * b)32 int rtllib_wx_set_freq(struct rtllib_device *ieee, struct iw_request_info *a,
33 union iwreq_data *wrqu, char *b)
34 {
35 int ret;
36 struct iw_freq *fwrq = &wrqu->freq;
37
38 down(&ieee->wx_sem);
39
40 if (ieee->iw_mode == IW_MODE_INFRA) {
41 ret = 0;
42 goto out;
43 }
44
45 /* if setting by freq convert to channel */
46 if (fwrq->e == 1) {
47 if ((fwrq->m >= (int) 2.412e8 &&
48 fwrq->m <= (int) 2.487e8)) {
49 int f = fwrq->m / 100000;
50 int c = 0;
51
52 while ((c < 14) && (f != rtllib_wlan_frequencies[c]))
53 c++;
54
55 /* hack to fall through */
56 fwrq->e = 0;
57 fwrq->m = c + 1;
58 }
59 }
60
61 if (fwrq->e > 0 || fwrq->m > 14 || fwrq->m < 1) {
62 ret = -EOPNOTSUPP;
63 goto out;
64
65 } else { /* Set the channel */
66
67 if (ieee->active_channel_map[fwrq->m] != 1) {
68 ret = -EINVAL;
69 goto out;
70 }
71 ieee->current_network.channel = fwrq->m;
72 ieee->set_chan(ieee->dev, ieee->current_network.channel);
73
74 if (ieee->iw_mode == IW_MODE_ADHOC ||
75 ieee->iw_mode == IW_MODE_MASTER)
76 if (ieee->state == RTLLIB_LINKED) {
77 rtllib_stop_send_beacons(ieee);
78 rtllib_start_send_beacons(ieee);
79 }
80 }
81
82 ret = 0;
83 out:
84 up(&ieee->wx_sem);
85 return ret;
86 }
87 EXPORT_SYMBOL(rtllib_wx_set_freq);
88
89
rtllib_wx_get_freq(struct rtllib_device * ieee,struct iw_request_info * a,union iwreq_data * wrqu,char * b)90 int rtllib_wx_get_freq(struct rtllib_device *ieee,
91 struct iw_request_info *a,
92 union iwreq_data *wrqu, char *b)
93 {
94 struct iw_freq *fwrq = &wrqu->freq;
95
96 if (ieee->current_network.channel == 0)
97 return -1;
98 fwrq->m = rtllib_wlan_frequencies[ieee->current_network.channel-1] *
99 100000;
100 fwrq->e = 1;
101 return 0;
102 }
103 EXPORT_SYMBOL(rtllib_wx_get_freq);
104
rtllib_wx_get_wap(struct rtllib_device * ieee,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)105 int rtllib_wx_get_wap(struct rtllib_device *ieee,
106 struct iw_request_info *info,
107 union iwreq_data *wrqu, char *extra)
108 {
109 unsigned long flags;
110
111 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
112
113 if (ieee->iw_mode == IW_MODE_MONITOR)
114 return -1;
115
116 /* We want avoid to give to the user inconsistent infos*/
117 spin_lock_irqsave(&ieee->lock, flags);
118
119 if (ieee->state != RTLLIB_LINKED &&
120 ieee->state != RTLLIB_LINKED_SCANNING &&
121 ieee->wap_set == 0)
122
123 memset(wrqu->ap_addr.sa_data, 0, ETH_ALEN);
124 else
125 memcpy(wrqu->ap_addr.sa_data,
126 ieee->current_network.bssid, ETH_ALEN);
127
128 spin_unlock_irqrestore(&ieee->lock, flags);
129
130 return 0;
131 }
132 EXPORT_SYMBOL(rtllib_wx_get_wap);
133
134
rtllib_wx_set_wap(struct rtllib_device * ieee,struct iw_request_info * info,union iwreq_data * awrq,char * extra)135 int rtllib_wx_set_wap(struct rtllib_device *ieee,
136 struct iw_request_info *info,
137 union iwreq_data *awrq,
138 char *extra)
139 {
140
141 int ret = 0;
142 unsigned long flags;
143
144 short ifup = ieee->proto_started;
145 struct sockaddr *temp = (struct sockaddr *)awrq;
146
147 rtllib_stop_scan_syncro(ieee);
148
149 down(&ieee->wx_sem);
150 /* use ifconfig hw ether */
151 if (ieee->iw_mode == IW_MODE_MASTER) {
152 ret = -1;
153 goto out;
154 }
155
156 if (temp->sa_family != ARPHRD_ETHER) {
157 ret = -EINVAL;
158 goto out;
159 }
160
161 if (is_zero_ether_addr(temp->sa_data)) {
162 spin_lock_irqsave(&ieee->lock, flags);
163 memcpy(ieee->current_network.bssid, temp->sa_data, ETH_ALEN);
164 ieee->wap_set = 0;
165 spin_unlock_irqrestore(&ieee->lock, flags);
166 ret = -1;
167 goto out;
168 }
169
170
171 if (ifup)
172 rtllib_stop_protocol(ieee, true);
173
174 /* just to avoid to give inconsistent infos in the
175 * get wx method. not really needed otherwise
176 */
177 spin_lock_irqsave(&ieee->lock, flags);
178
179 ieee->cannot_notify = false;
180 memcpy(ieee->current_network.bssid, temp->sa_data, ETH_ALEN);
181 ieee->wap_set = !is_zero_ether_addr(temp->sa_data);
182
183 spin_unlock_irqrestore(&ieee->lock, flags);
184
185 if (ifup)
186 rtllib_start_protocol(ieee);
187 out:
188 up(&ieee->wx_sem);
189 return ret;
190 }
191 EXPORT_SYMBOL(rtllib_wx_set_wap);
192
rtllib_wx_get_essid(struct rtllib_device * ieee,struct iw_request_info * a,union iwreq_data * wrqu,char * b)193 int rtllib_wx_get_essid(struct rtllib_device *ieee, struct iw_request_info *a,
194 union iwreq_data *wrqu, char *b)
195 {
196 int len, ret = 0;
197 unsigned long flags;
198
199 if (ieee->iw_mode == IW_MODE_MONITOR)
200 return -1;
201
202 /* We want avoid to give to the user inconsistent infos*/
203 spin_lock_irqsave(&ieee->lock, flags);
204
205 if (ieee->current_network.ssid[0] == '\0' ||
206 ieee->current_network.ssid_len == 0) {
207 ret = -1;
208 goto out;
209 }
210
211 if (ieee->state != RTLLIB_LINKED &&
212 ieee->state != RTLLIB_LINKED_SCANNING &&
213 ieee->ssid_set == 0) {
214 ret = -1;
215 goto out;
216 }
217 len = ieee->current_network.ssid_len;
218 wrqu->essid.length = len;
219 strncpy(b, ieee->current_network.ssid, len);
220 wrqu->essid.flags = 1;
221
222 out:
223 spin_unlock_irqrestore(&ieee->lock, flags);
224
225 return ret;
226
227 }
228 EXPORT_SYMBOL(rtllib_wx_get_essid);
229
rtllib_wx_set_rate(struct rtllib_device * ieee,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)230 int rtllib_wx_set_rate(struct rtllib_device *ieee,
231 struct iw_request_info *info,
232 union iwreq_data *wrqu, char *extra)
233 {
234
235 u32 target_rate = wrqu->bitrate.value;
236
237 ieee->rate = target_rate/100000;
238 return 0;
239 }
240 EXPORT_SYMBOL(rtllib_wx_set_rate);
241
rtllib_wx_get_rate(struct rtllib_device * ieee,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)242 int rtllib_wx_get_rate(struct rtllib_device *ieee,
243 struct iw_request_info *info,
244 union iwreq_data *wrqu, char *extra)
245 {
246 u32 tmp_rate = 0;
247 tmp_rate = TxCountToDataRate(ieee,
248 ieee->softmac_stats.CurrentShowTxate);
249 wrqu->bitrate.value = tmp_rate * 500000;
250
251 return 0;
252 }
253 EXPORT_SYMBOL(rtllib_wx_get_rate);
254
255
rtllib_wx_set_rts(struct rtllib_device * ieee,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)256 int rtllib_wx_set_rts(struct rtllib_device *ieee,
257 struct iw_request_info *info,
258 union iwreq_data *wrqu, char *extra)
259 {
260 if (wrqu->rts.disabled || !wrqu->rts.fixed)
261 ieee->rts = DEFAULT_RTS_THRESHOLD;
262 else {
263 if (wrqu->rts.value < MIN_RTS_THRESHOLD ||
264 wrqu->rts.value > MAX_RTS_THRESHOLD)
265 return -EINVAL;
266 ieee->rts = wrqu->rts.value;
267 }
268 return 0;
269 }
270 EXPORT_SYMBOL(rtllib_wx_set_rts);
271
rtllib_wx_get_rts(struct rtllib_device * ieee,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)272 int rtllib_wx_get_rts(struct rtllib_device *ieee,
273 struct iw_request_info *info,
274 union iwreq_data *wrqu, char *extra)
275 {
276 wrqu->rts.value = ieee->rts;
277 wrqu->rts.fixed = 0; /* no auto select */
278 wrqu->rts.disabled = (wrqu->rts.value == DEFAULT_RTS_THRESHOLD);
279 return 0;
280 }
281 EXPORT_SYMBOL(rtllib_wx_get_rts);
282
rtllib_wx_set_mode(struct rtllib_device * ieee,struct iw_request_info * a,union iwreq_data * wrqu,char * b)283 int rtllib_wx_set_mode(struct rtllib_device *ieee, struct iw_request_info *a,
284 union iwreq_data *wrqu, char *b)
285 {
286 int set_mode_status = 0;
287
288 rtllib_stop_scan_syncro(ieee);
289 down(&ieee->wx_sem);
290 switch (wrqu->mode) {
291 case IW_MODE_MONITOR:
292 case IW_MODE_ADHOC:
293 case IW_MODE_INFRA:
294 break;
295 case IW_MODE_AUTO:
296 wrqu->mode = IW_MODE_INFRA;
297 break;
298 default:
299 set_mode_status = -EINVAL;
300 goto out;
301 }
302
303 if (wrqu->mode == ieee->iw_mode)
304 goto out;
305
306 if (wrqu->mode == IW_MODE_MONITOR) {
307 ieee->dev->type = ARPHRD_IEEE80211;
308 rtllib_EnableNetMonitorMode(ieee->dev, false);
309 } else {
310 ieee->dev->type = ARPHRD_ETHER;
311 if (ieee->iw_mode == IW_MODE_MONITOR)
312 rtllib_DisableNetMonitorMode(ieee->dev, false);
313 }
314
315 if (!ieee->proto_started) {
316 ieee->iw_mode = wrqu->mode;
317 } else {
318 rtllib_stop_protocol(ieee, true);
319 ieee->iw_mode = wrqu->mode;
320 rtllib_start_protocol(ieee);
321 }
322
323 out:
324 up(&ieee->wx_sem);
325 return set_mode_status;
326 }
327 EXPORT_SYMBOL(rtllib_wx_set_mode);
328
rtllib_wx_sync_scan_wq(void * data)329 void rtllib_wx_sync_scan_wq(void *data)
330 {
331 struct rtllib_device *ieee = container_of_work_rsl(data,
332 struct rtllib_device, wx_sync_scan_wq);
333 short chan;
334 enum ht_extchnl_offset chan_offset = 0;
335 enum ht_channel_width bandwidth = 0;
336 int b40M = 0;
337 static int count;
338
339 if (!(ieee->softmac_features & IEEE_SOFTMAC_SCAN)) {
340 rtllib_start_scan_syncro(ieee, 0);
341 goto out;
342 }
343
344 chan = ieee->current_network.channel;
345
346 if (ieee->LeisurePSLeave)
347 ieee->LeisurePSLeave(ieee->dev);
348 /* notify AP to be in PS mode */
349 rtllib_sta_ps_send_null_frame(ieee, 1);
350 rtllib_sta_ps_send_null_frame(ieee, 1);
351
352 rtllib_stop_all_queues(ieee);
353
354 if (ieee->data_hard_stop)
355 ieee->data_hard_stop(ieee->dev);
356 rtllib_stop_send_beacons(ieee);
357 ieee->state = RTLLIB_LINKED_SCANNING;
358 ieee->link_change(ieee->dev);
359 /* wait for ps packet to be kicked out successfully */
360 msleep(50);
361
362 if (ieee->ScanOperationBackupHandler)
363 ieee->ScanOperationBackupHandler(ieee->dev, SCAN_OPT_BACKUP);
364
365 if (ieee->pHTInfo->bCurrentHTSupport && ieee->pHTInfo->bEnableHT &&
366 ieee->pHTInfo->bCurBW40MHz) {
367 b40M = 1;
368 chan_offset = ieee->pHTInfo->CurSTAExtChnlOffset;
369 bandwidth = (enum ht_channel_width)ieee->pHTInfo->bCurBW40MHz;
370 RT_TRACE(COMP_DBG, "Scan in 40M, force to 20M first:%d, %d\n",
371 chan_offset, bandwidth);
372 ieee->SetBWModeHandler(ieee->dev, HT_CHANNEL_WIDTH_20,
373 HT_EXTCHNL_OFFSET_NO_EXT);
374 }
375
376 rtllib_start_scan_syncro(ieee, 0);
377
378 if (b40M) {
379 RT_TRACE(COMP_DBG, "Scan in 20M, back to 40M\n");
380 if (chan_offset == HT_EXTCHNL_OFFSET_UPPER)
381 ieee->set_chan(ieee->dev, chan + 2);
382 else if (chan_offset == HT_EXTCHNL_OFFSET_LOWER)
383 ieee->set_chan(ieee->dev, chan - 2);
384 else
385 ieee->set_chan(ieee->dev, chan);
386 ieee->SetBWModeHandler(ieee->dev, bandwidth, chan_offset);
387 } else {
388 ieee->set_chan(ieee->dev, chan);
389 }
390
391 if (ieee->ScanOperationBackupHandler)
392 ieee->ScanOperationBackupHandler(ieee->dev, SCAN_OPT_RESTORE);
393
394 ieee->state = RTLLIB_LINKED;
395 ieee->link_change(ieee->dev);
396
397 /* Notify AP that I wake up again */
398 rtllib_sta_ps_send_null_frame(ieee, 0);
399
400 if (ieee->LinkDetectInfo.NumRecvBcnInPeriod == 0 ||
401 ieee->LinkDetectInfo.NumRecvDataInPeriod == 0) {
402 ieee->LinkDetectInfo.NumRecvBcnInPeriod = 1;
403 ieee->LinkDetectInfo.NumRecvDataInPeriod = 1;
404 }
405
406 if (ieee->data_hard_resume)
407 ieee->data_hard_resume(ieee->dev);
408
409 if (ieee->iw_mode == IW_MODE_ADHOC || ieee->iw_mode == IW_MODE_MASTER)
410 rtllib_start_send_beacons(ieee);
411
412 rtllib_wake_all_queues(ieee);
413
414 count = 0;
415 out:
416 up(&ieee->wx_sem);
417
418 }
419
rtllib_wx_set_scan(struct rtllib_device * ieee,struct iw_request_info * a,union iwreq_data * wrqu,char * b)420 int rtllib_wx_set_scan(struct rtllib_device *ieee, struct iw_request_info *a,
421 union iwreq_data *wrqu, char *b)
422 {
423 int ret = 0;
424
425 down(&ieee->wx_sem);
426
427 if (ieee->iw_mode == IW_MODE_MONITOR || !(ieee->proto_started)) {
428 ret = -1;
429 goto out;
430 }
431
432 if (ieee->state == RTLLIB_LINKED) {
433 queue_work_rsl(ieee->wq, &ieee->wx_sync_scan_wq);
434 /* intentionally forget to up sem */
435 return 0;
436 }
437
438 out:
439 up(&ieee->wx_sem);
440 return ret;
441 }
442 EXPORT_SYMBOL(rtllib_wx_set_scan);
443
rtllib_wx_set_essid(struct rtllib_device * ieee,struct iw_request_info * a,union iwreq_data * wrqu,char * extra)444 int rtllib_wx_set_essid(struct rtllib_device *ieee,
445 struct iw_request_info *a,
446 union iwreq_data *wrqu, char *extra)
447 {
448
449 int ret = 0, len, i;
450 short proto_started;
451 unsigned long flags;
452
453 rtllib_stop_scan_syncro(ieee);
454 down(&ieee->wx_sem);
455
456 proto_started = ieee->proto_started;
457
458 len = (wrqu->essid.length < IW_ESSID_MAX_SIZE) ? wrqu->essid.length :
459 IW_ESSID_MAX_SIZE;
460
461 if (len > IW_ESSID_MAX_SIZE) {
462 ret = -E2BIG;
463 goto out;
464 }
465
466 if (ieee->iw_mode == IW_MODE_MONITOR) {
467 ret = -1;
468 goto out;
469 }
470
471 for (i = 0; i < len; i++) {
472 if (extra[i] < 0) {
473 ret = -1;
474 goto out;
475 }
476 }
477
478 if (proto_started)
479 rtllib_stop_protocol(ieee, true);
480
481
482 /* this is just to be sure that the GET wx callback
483 * has consistent infos. not needed otherwise
484 */
485 spin_lock_irqsave(&ieee->lock, flags);
486
487 if (wrqu->essid.flags && wrqu->essid.length) {
488 strncpy(ieee->current_network.ssid, extra, len);
489 ieee->current_network.ssid_len = len;
490 ieee->cannot_notify = false;
491 ieee->ssid_set = 1;
492 } else {
493 ieee->ssid_set = 0;
494 ieee->current_network.ssid[0] = '\0';
495 ieee->current_network.ssid_len = 0;
496 }
497 spin_unlock_irqrestore(&ieee->lock, flags);
498
499 if (proto_started)
500 rtllib_start_protocol(ieee);
501 out:
502 up(&ieee->wx_sem);
503 return ret;
504 }
505 EXPORT_SYMBOL(rtllib_wx_set_essid);
506
rtllib_wx_get_mode(struct rtllib_device * ieee,struct iw_request_info * a,union iwreq_data * wrqu,char * b)507 int rtllib_wx_get_mode(struct rtllib_device *ieee, struct iw_request_info *a,
508 union iwreq_data *wrqu, char *b)
509 {
510 wrqu->mode = ieee->iw_mode;
511 return 0;
512 }
513 EXPORT_SYMBOL(rtllib_wx_get_mode);
514
rtllib_wx_set_rawtx(struct rtllib_device * ieee,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)515 int rtllib_wx_set_rawtx(struct rtllib_device *ieee,
516 struct iw_request_info *info,
517 union iwreq_data *wrqu, char *extra)
518 {
519
520 int *parms = (int *)extra;
521 int enable = (parms[0] > 0);
522 short prev = ieee->raw_tx;
523
524 down(&ieee->wx_sem);
525
526 if (enable)
527 ieee->raw_tx = 1;
528 else
529 ieee->raw_tx = 0;
530
531 printk(KERN_INFO"raw TX is %s\n",
532 ieee->raw_tx ? "enabled" : "disabled");
533
534 if (ieee->iw_mode == IW_MODE_MONITOR) {
535 if (prev == 0 && ieee->raw_tx) {
536 if (ieee->data_hard_resume)
537 ieee->data_hard_resume(ieee->dev);
538
539 netif_carrier_on(ieee->dev);
540 }
541
542 if (prev && ieee->raw_tx == 1)
543 netif_carrier_off(ieee->dev);
544 }
545
546 up(&ieee->wx_sem);
547
548 return 0;
549 }
550 EXPORT_SYMBOL(rtllib_wx_set_rawtx);
551
rtllib_wx_get_name(struct rtllib_device * ieee,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)552 int rtllib_wx_get_name(struct rtllib_device *ieee,
553 struct iw_request_info *info,
554 union iwreq_data *wrqu, char *extra)
555 {
556 strcpy(wrqu->name, "802.11");
557
558 if (ieee->modulation & RTLLIB_CCK_MODULATION)
559 strcat(wrqu->name, "b");
560 if (ieee->modulation & RTLLIB_OFDM_MODULATION)
561 strcat(wrqu->name, "g");
562 if (ieee->mode & (IEEE_N_24G | IEEE_N_5G))
563 strcat(wrqu->name, "n");
564 return 0;
565 }
566 EXPORT_SYMBOL(rtllib_wx_get_name);
567
568
569 /* this is mostly stolen from hostap */
rtllib_wx_set_power(struct rtllib_device * ieee,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)570 int rtllib_wx_set_power(struct rtllib_device *ieee,
571 struct iw_request_info *info,
572 union iwreq_data *wrqu, char *extra)
573 {
574 int ret = 0;
575
576 if ((!ieee->sta_wake_up) ||
577 (!ieee->enter_sleep_state) ||
578 (!ieee->ps_is_queue_empty)) {
579 RTLLIB_DEBUG(RTLLIB_DL_ERR, "%s(): PS mode is tried to be use "
580 "but driver missed a callback\n\n", __func__);
581 return -1;
582 }
583
584 down(&ieee->wx_sem);
585
586 if (wrqu->power.disabled) {
587 RT_TRACE(COMP_DBG, "===>%s(): power disable\n", __func__);
588 ieee->ps = RTLLIB_PS_DISABLED;
589 goto exit;
590 }
591 if (wrqu->power.flags & IW_POWER_TIMEOUT) {
592 ieee->ps_timeout = wrqu->power.value / 1000;
593 RT_TRACE(COMP_DBG, "===>%s():ps_timeout is %d\n", __func__,
594 ieee->ps_timeout);
595 }
596
597 if (wrqu->power.flags & IW_POWER_PERIOD)
598 ieee->ps_period = wrqu->power.value / 1000;
599
600 switch (wrqu->power.flags & IW_POWER_MODE) {
601 case IW_POWER_UNICAST_R:
602 ieee->ps = RTLLIB_PS_UNICAST;
603 break;
604 case IW_POWER_MULTICAST_R:
605 ieee->ps = RTLLIB_PS_MBCAST;
606 break;
607 case IW_POWER_ALL_R:
608 ieee->ps = RTLLIB_PS_UNICAST | RTLLIB_PS_MBCAST;
609 break;
610
611 case IW_POWER_ON:
612 break;
613
614 default:
615 ret = -EINVAL;
616 goto exit;
617
618 }
619 exit:
620 up(&ieee->wx_sem);
621 return ret;
622
623 }
624 EXPORT_SYMBOL(rtllib_wx_set_power);
625
626 /* this is stolen from hostap */
rtllib_wx_get_power(struct rtllib_device * ieee,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)627 int rtllib_wx_get_power(struct rtllib_device *ieee,
628 struct iw_request_info *info,
629 union iwreq_data *wrqu, char *extra)
630 {
631 int ret = 0;
632
633 down(&ieee->wx_sem);
634
635 if (ieee->ps == RTLLIB_PS_DISABLED) {
636 wrqu->power.disabled = 1;
637 goto exit;
638 }
639
640 wrqu->power.disabled = 0;
641
642 if ((wrqu->power.flags & IW_POWER_TYPE) == IW_POWER_TIMEOUT) {
643 wrqu->power.flags = IW_POWER_TIMEOUT;
644 wrqu->power.value = ieee->ps_timeout * 1000;
645 } else {
646 wrqu->power.flags = IW_POWER_PERIOD;
647 wrqu->power.value = ieee->ps_period * 1000;
648 }
649
650 if ((ieee->ps & (RTLLIB_PS_MBCAST | RTLLIB_PS_UNICAST)) ==
651 (RTLLIB_PS_MBCAST | RTLLIB_PS_UNICAST))
652 wrqu->power.flags |= IW_POWER_ALL_R;
653 else if (ieee->ps & RTLLIB_PS_MBCAST)
654 wrqu->power.flags |= IW_POWER_MULTICAST_R;
655 else
656 wrqu->power.flags |= IW_POWER_UNICAST_R;
657
658 exit:
659 up(&ieee->wx_sem);
660 return ret;
661
662 }
663 EXPORT_SYMBOL(rtllib_wx_get_power);
664