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23
24#include <linux/kernel.h>
25#include <linux/module.h>
26
27#include "rt2x00.h"
28#include "rt2x00lib.h"
29
30static int rt2x00mac_tx_rts_cts(struct rt2x00_dev *rt2x00dev,
31 struct data_queue *queue,
32 struct sk_buff *frag_skb)
33{
34 struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(frag_skb);
35 struct ieee80211_tx_info *rts_info;
36 struct sk_buff *skb;
37 unsigned int data_length;
38 int retval = 0;
39
40 if (tx_info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT)
41 data_length = sizeof(struct ieee80211_cts);
42 else
43 data_length = sizeof(struct ieee80211_rts);
44
45 skb = dev_alloc_skb(data_length + rt2x00dev->hw->extra_tx_headroom);
46 if (unlikely(!skb)) {
47 rt2x00_warn(rt2x00dev, "Failed to create RTS/CTS frame\n");
48 return -ENOMEM;
49 }
50
51 skb_reserve(skb, rt2x00dev->hw->extra_tx_headroom);
52 skb_put(skb, data_length);
53
54
55
56
57
58
59
60
61
62
63 memcpy(skb->cb, frag_skb->cb, sizeof(skb->cb));
64 rts_info = IEEE80211_SKB_CB(skb);
65 rts_info->control.rates[0].flags &= ~IEEE80211_TX_RC_USE_RTS_CTS;
66 rts_info->control.rates[0].flags &= ~IEEE80211_TX_RC_USE_CTS_PROTECT;
67
68 if (tx_info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT)
69 rts_info->flags |= IEEE80211_TX_CTL_NO_ACK;
70 else
71 rts_info->flags &= ~IEEE80211_TX_CTL_NO_ACK;
72
73
74 rts_info->control.hw_key = NULL;
75
76
77
78
79
80 data_length += rt2x00crypto_tx_overhead(rt2x00dev, skb);
81
82 if (tx_info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT)
83 ieee80211_ctstoself_get(rt2x00dev->hw, tx_info->control.vif,
84 frag_skb->data, data_length, tx_info,
85 (struct ieee80211_cts *)(skb->data));
86 else
87 ieee80211_rts_get(rt2x00dev->hw, tx_info->control.vif,
88 frag_skb->data, data_length, tx_info,
89 (struct ieee80211_rts *)(skb->data));
90
91 retval = rt2x00queue_write_tx_frame(queue, skb, NULL, true);
92 if (retval) {
93 dev_kfree_skb_any(skb);
94 rt2x00_warn(rt2x00dev, "Failed to send RTS/CTS frame\n");
95 }
96
97 return retval;
98}
99
100void rt2x00mac_tx(struct ieee80211_hw *hw,
101 struct ieee80211_tx_control *control,
102 struct sk_buff *skb)
103{
104 struct rt2x00_dev *rt2x00dev = hw->priv;
105 struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
106 enum data_queue_qid qid = skb_get_queue_mapping(skb);
107 struct data_queue *queue = NULL;
108
109
110
111
112
113
114
115 if (!test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags))
116 goto exit_free_skb;
117
118
119
120
121 if (tx_info->flags & IEEE80211_TX_CTL_SEND_AFTER_DTIM &&
122 rt2x00_has_cap_flag(rt2x00dev, REQUIRE_ATIM_QUEUE))
123 qid = QID_ATIM;
124
125 queue = rt2x00queue_get_tx_queue(rt2x00dev, qid);
126 if (unlikely(!queue)) {
127 rt2x00_err(rt2x00dev,
128 "Attempt to send packet over invalid queue %d\n"
129 "Please file bug report to %s\n", qid, DRV_PROJECT);
130 goto exit_free_skb;
131 }
132
133
134
135
136
137
138
139
140
141
142 if (!rt2x00dev->ops->hw->set_rts_threshold &&
143 (tx_info->control.rates[0].flags & (IEEE80211_TX_RC_USE_RTS_CTS |
144 IEEE80211_TX_RC_USE_CTS_PROTECT))) {
145 if (rt2x00queue_available(queue) <= 1)
146 goto exit_fail;
147
148 if (rt2x00mac_tx_rts_cts(rt2x00dev, queue, skb))
149 goto exit_fail;
150 }
151
152 if (unlikely(rt2x00queue_write_tx_frame(queue, skb, control->sta, false)))
153 goto exit_fail;
154
155
156
157
158
159
160 spin_lock(&queue->tx_lock);
161 if (rt2x00queue_threshold(queue))
162 rt2x00queue_pause_queue(queue);
163 spin_unlock(&queue->tx_lock);
164
165 return;
166
167 exit_fail:
168 spin_lock(&queue->tx_lock);
169 rt2x00queue_pause_queue(queue);
170 spin_unlock(&queue->tx_lock);
171 exit_free_skb:
172 ieee80211_free_txskb(hw, skb);
173}
174EXPORT_SYMBOL_GPL(rt2x00mac_tx);
175
176int rt2x00mac_start(struct ieee80211_hw *hw)
177{
178 struct rt2x00_dev *rt2x00dev = hw->priv;
179
180 if (!test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags))
181 return 0;
182
183 return rt2x00lib_start(rt2x00dev);
184}
185EXPORT_SYMBOL_GPL(rt2x00mac_start);
186
187void rt2x00mac_stop(struct ieee80211_hw *hw)
188{
189 struct rt2x00_dev *rt2x00dev = hw->priv;
190
191 if (!test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags))
192 return;
193
194 rt2x00lib_stop(rt2x00dev);
195}
196EXPORT_SYMBOL_GPL(rt2x00mac_stop);
197
198int rt2x00mac_add_interface(struct ieee80211_hw *hw,
199 struct ieee80211_vif *vif)
200{
201 struct rt2x00_dev *rt2x00dev = hw->priv;
202 struct rt2x00_intf *intf = vif_to_intf(vif);
203 struct data_queue *queue = rt2x00dev->bcn;
204 struct queue_entry *entry = NULL;
205 unsigned int i;
206
207
208
209
210
211 if (!test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags) ||
212 !test_bit(DEVICE_STATE_STARTED, &rt2x00dev->flags))
213 return -ENODEV;
214
215
216
217
218
219
220
221 for (i = 0; i < queue->limit; i++) {
222 entry = &queue->entries[i];
223 if (!test_and_set_bit(ENTRY_BCN_ASSIGNED, &entry->flags))
224 break;
225 }
226
227 if (unlikely(i == queue->limit))
228 return -ENOBUFS;
229
230
231
232
233
234
235 if (vif->type == NL80211_IFTYPE_AP)
236 rt2x00dev->intf_ap_count++;
237 else
238 rt2x00dev->intf_sta_count++;
239
240 mutex_init(&intf->beacon_skb_mutex);
241 intf->beacon = entry;
242
243
244
245
246
247
248
249
250
251
252 rt2x00lib_config_intf(rt2x00dev, intf, vif->type,
253 vif->addr, NULL);
254
255
256
257
258
259
260 rt2x00dev->packet_filter = 0;
261
262 return 0;
263}
264EXPORT_SYMBOL_GPL(rt2x00mac_add_interface);
265
266void rt2x00mac_remove_interface(struct ieee80211_hw *hw,
267 struct ieee80211_vif *vif)
268{
269 struct rt2x00_dev *rt2x00dev = hw->priv;
270 struct rt2x00_intf *intf = vif_to_intf(vif);
271
272
273
274
275
276
277 if (!test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags) ||
278 (vif->type == NL80211_IFTYPE_AP && !rt2x00dev->intf_ap_count) ||
279 (vif->type != NL80211_IFTYPE_AP && !rt2x00dev->intf_sta_count))
280 return;
281
282 if (vif->type == NL80211_IFTYPE_AP)
283 rt2x00dev->intf_ap_count--;
284 else
285 rt2x00dev->intf_sta_count--;
286
287
288
289
290
291 clear_bit(ENTRY_BCN_ASSIGNED, &intf->beacon->flags);
292
293
294
295
296
297 rt2x00lib_config_intf(rt2x00dev, intf,
298 NL80211_IFTYPE_UNSPECIFIED, NULL, NULL);
299}
300EXPORT_SYMBOL_GPL(rt2x00mac_remove_interface);
301
302int rt2x00mac_config(struct ieee80211_hw *hw, u32 changed)
303{
304 struct rt2x00_dev *rt2x00dev = hw->priv;
305 struct ieee80211_conf *conf = &hw->conf;
306
307
308
309
310
311 if (!test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags))
312 return 0;
313
314
315
316
317
318
319
320
321 rt2x00queue_stop_queue(rt2x00dev->rx);
322
323
324
325
326
327 rt2x00lib_config(rt2x00dev, conf, changed);
328
329
330
331
332
333
334
335
336 rt2x00lib_config_antenna(rt2x00dev, rt2x00dev->default_ant);
337
338
339 rt2x00queue_start_queue(rt2x00dev->rx);
340
341 return 0;
342}
343EXPORT_SYMBOL_GPL(rt2x00mac_config);
344
345void rt2x00mac_configure_filter(struct ieee80211_hw *hw,
346 unsigned int changed_flags,
347 unsigned int *total_flags,
348 u64 multicast)
349{
350 struct rt2x00_dev *rt2x00dev = hw->priv;
351
352
353
354
355
356 *total_flags &=
357 FIF_ALLMULTI |
358 FIF_FCSFAIL |
359 FIF_PLCPFAIL |
360 FIF_CONTROL |
361 FIF_PSPOLL |
362 FIF_OTHER_BSS;
363
364
365
366
367
368
369
370 *total_flags |= FIF_ALLMULTI;
371
372
373
374
375
376
377
378
379 if (!rt2x00_has_cap_control_filters(rt2x00dev)) {
380 if (*total_flags & FIF_CONTROL || *total_flags & FIF_PSPOLL)
381 *total_flags |= FIF_CONTROL | FIF_PSPOLL;
382 }
383 if (!rt2x00_has_cap_control_filter_pspoll(rt2x00dev)) {
384 if (*total_flags & FIF_CONTROL)
385 *total_flags |= FIF_PSPOLL;
386 }
387
388 rt2x00dev->packet_filter = *total_flags;
389
390 rt2x00dev->ops->lib->config_filter(rt2x00dev, *total_flags);
391}
392EXPORT_SYMBOL_GPL(rt2x00mac_configure_filter);
393
394static void rt2x00mac_set_tim_iter(void *data, u8 *mac,
395 struct ieee80211_vif *vif)
396{
397 struct rt2x00_intf *intf = vif_to_intf(vif);
398
399 if (vif->type != NL80211_IFTYPE_AP &&
400 vif->type != NL80211_IFTYPE_ADHOC &&
401 vif->type != NL80211_IFTYPE_MESH_POINT &&
402 vif->type != NL80211_IFTYPE_WDS)
403 return;
404
405 set_bit(DELAYED_UPDATE_BEACON, &intf->delayed_flags);
406}
407
408int rt2x00mac_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta,
409 bool set)
410{
411 struct rt2x00_dev *rt2x00dev = hw->priv;
412
413 if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
414 return 0;
415
416 ieee80211_iterate_active_interfaces_atomic(
417 rt2x00dev->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
418 rt2x00mac_set_tim_iter, rt2x00dev);
419
420
421 ieee80211_queue_work(rt2x00dev->hw, &rt2x00dev->intf_work);
422 return 0;
423}
424EXPORT_SYMBOL_GPL(rt2x00mac_set_tim);
425
426#ifdef CONFIG_RT2X00_LIB_CRYPTO
427static void memcpy_tkip(struct rt2x00lib_crypto *crypto, u8 *key, u8 key_len)
428{
429 if (key_len > NL80211_TKIP_DATA_OFFSET_ENCR_KEY)
430 memcpy(crypto->key,
431 &key[NL80211_TKIP_DATA_OFFSET_ENCR_KEY],
432 sizeof(crypto->key));
433
434 if (key_len > NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY)
435 memcpy(crypto->tx_mic,
436 &key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY],
437 sizeof(crypto->tx_mic));
438
439 if (key_len > NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY)
440 memcpy(crypto->rx_mic,
441 &key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY],
442 sizeof(crypto->rx_mic));
443}
444
445int rt2x00mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
446 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
447 struct ieee80211_key_conf *key)
448{
449 struct rt2x00_dev *rt2x00dev = hw->priv;
450 int (*set_key) (struct rt2x00_dev *rt2x00dev,
451 struct rt2x00lib_crypto *crypto,
452 struct ieee80211_key_conf *key);
453 struct rt2x00lib_crypto crypto;
454 static const u8 bcast_addr[ETH_ALEN] =
455 { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, };
456 struct rt2x00_sta *sta_priv = NULL;
457
458 if (!test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags))
459 return 0;
460
461 if (!rt2x00_has_cap_hw_crypto(rt2x00dev))
462 return -EOPNOTSUPP;
463
464
465
466
467
468 if (vif->type == NL80211_IFTYPE_ADHOC &&
469 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE))
470 return -EOPNOTSUPP;
471
472 if (key->keylen > 32)
473 return -ENOSPC;
474
475 memset(&crypto, 0, sizeof(crypto));
476
477 crypto.bssidx = rt2x00lib_get_bssidx(rt2x00dev, vif);
478 crypto.cipher = rt2x00crypto_key_to_cipher(key);
479 if (crypto.cipher == CIPHER_NONE)
480 return -EOPNOTSUPP;
481 if (crypto.cipher == CIPHER_TKIP && rt2x00_is_usb(rt2x00dev))
482 return -EOPNOTSUPP;
483
484 crypto.cmd = cmd;
485
486 if (sta) {
487 crypto.address = sta->addr;
488 sta_priv = sta_to_rt2x00_sta(sta);
489 crypto.wcid = sta_priv->wcid;
490 } else
491 crypto.address = bcast_addr;
492
493 if (crypto.cipher == CIPHER_TKIP)
494 memcpy_tkip(&crypto, &key->key[0], key->keylen);
495 else
496 memcpy(crypto.key, &key->key[0], key->keylen);
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513 if (cmd == SET_KEY)
514 key->hw_key_idx = 0;
515
516 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
517 set_key = rt2x00dev->ops->lib->config_pairwise_key;
518 else
519 set_key = rt2x00dev->ops->lib->config_shared_key;
520
521 if (!set_key)
522 return -EOPNOTSUPP;
523
524 return set_key(rt2x00dev, &crypto, key);
525}
526EXPORT_SYMBOL_GPL(rt2x00mac_set_key);
527#endif
528
529int rt2x00mac_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
530 struct ieee80211_sta *sta)
531{
532 struct rt2x00_dev *rt2x00dev = hw->priv;
533
534 return rt2x00dev->ops->lib->sta_add(rt2x00dev, vif, sta);
535}
536EXPORT_SYMBOL_GPL(rt2x00mac_sta_add);
537
538int rt2x00mac_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
539 struct ieee80211_sta *sta)
540{
541 struct rt2x00_dev *rt2x00dev = hw->priv;
542 struct rt2x00_sta *sta_priv = sta_to_rt2x00_sta(sta);
543
544 return rt2x00dev->ops->lib->sta_remove(rt2x00dev, sta_priv->wcid);
545}
546EXPORT_SYMBOL_GPL(rt2x00mac_sta_remove);
547
548void rt2x00mac_sw_scan_start(struct ieee80211_hw *hw,
549 struct ieee80211_vif *vif,
550 const u8 *mac_addr)
551{
552 struct rt2x00_dev *rt2x00dev = hw->priv;
553 set_bit(DEVICE_STATE_SCANNING, &rt2x00dev->flags);
554 rt2x00link_stop_tuner(rt2x00dev);
555}
556EXPORT_SYMBOL_GPL(rt2x00mac_sw_scan_start);
557
558void rt2x00mac_sw_scan_complete(struct ieee80211_hw *hw,
559 struct ieee80211_vif *vif)
560{
561 struct rt2x00_dev *rt2x00dev = hw->priv;
562 clear_bit(DEVICE_STATE_SCANNING, &rt2x00dev->flags);
563 rt2x00link_start_tuner(rt2x00dev);
564}
565EXPORT_SYMBOL_GPL(rt2x00mac_sw_scan_complete);
566
567int rt2x00mac_get_stats(struct ieee80211_hw *hw,
568 struct ieee80211_low_level_stats *stats)
569{
570 struct rt2x00_dev *rt2x00dev = hw->priv;
571
572
573
574
575
576
577 memcpy(stats, &rt2x00dev->low_level_stats, sizeof(*stats));
578
579 return 0;
580}
581EXPORT_SYMBOL_GPL(rt2x00mac_get_stats);
582
583void rt2x00mac_bss_info_changed(struct ieee80211_hw *hw,
584 struct ieee80211_vif *vif,
585 struct ieee80211_bss_conf *bss_conf,
586 u32 changes)
587{
588 struct rt2x00_dev *rt2x00dev = hw->priv;
589 struct rt2x00_intf *intf = vif_to_intf(vif);
590
591
592
593
594
595 if (!test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags))
596 return;
597
598
599
600
601 if (changes & BSS_CHANGED_BSSID)
602 rt2x00lib_config_intf(rt2x00dev, intf, vif->type, NULL,
603 bss_conf->bssid);
604
605
606
607
608 if (changes & BSS_CHANGED_BEACON_ENABLED) {
609 mutex_lock(&intf->beacon_skb_mutex);
610 if (!bss_conf->enable_beacon && intf->enable_beacon) {
611 rt2x00dev->intf_beaconing--;
612 intf->enable_beacon = false;
613
614 if (rt2x00dev->intf_beaconing == 0) {
615
616
617
618
619 rt2x00queue_stop_queue(rt2x00dev->bcn);
620 }
621
622
623
624
625
626 rt2x00queue_clear_beacon(rt2x00dev, vif);
627 } else if (bss_conf->enable_beacon && !intf->enable_beacon) {
628 rt2x00dev->intf_beaconing++;
629 intf->enable_beacon = true;
630
631
632
633
634 if (rt2x00_is_usb(rt2x00dev))
635 rt2x00queue_update_beacon(rt2x00dev, vif);
636
637 if (rt2x00dev->intf_beaconing == 1) {
638
639
640
641
642 rt2x00queue_start_queue(rt2x00dev->bcn);
643 }
644 }
645 mutex_unlock(&intf->beacon_skb_mutex);
646 }
647
648
649
650
651
652
653
654 if (changes & BSS_CHANGED_ASSOC) {
655 rt2x00dev->link.count = 0;
656
657 if (bss_conf->assoc)
658 rt2x00dev->intf_associated++;
659 else
660 rt2x00dev->intf_associated--;
661
662 rt2x00leds_led_assoc(rt2x00dev, !!rt2x00dev->intf_associated);
663
664 clear_bit(CONFIG_QOS_DISABLED, &rt2x00dev->flags);
665 }
666
667
668
669
670
671
672 if (changes & BSS_CHANGED_QOS && !bss_conf->qos)
673 set_bit(CONFIG_QOS_DISABLED, &rt2x00dev->flags);
674
675
676
677
678
679 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_ERP_PREAMBLE |
680 BSS_CHANGED_ERP_SLOT | BSS_CHANGED_BASIC_RATES |
681 BSS_CHANGED_BEACON_INT | BSS_CHANGED_HT))
682 rt2x00lib_config_erp(rt2x00dev, intf, bss_conf, changes);
683}
684EXPORT_SYMBOL_GPL(rt2x00mac_bss_info_changed);
685
686int rt2x00mac_conf_tx(struct ieee80211_hw *hw,
687 struct ieee80211_vif *vif, u16 queue_idx,
688 const struct ieee80211_tx_queue_params *params)
689{
690 struct rt2x00_dev *rt2x00dev = hw->priv;
691 struct data_queue *queue;
692
693 queue = rt2x00queue_get_tx_queue(rt2x00dev, queue_idx);
694 if (unlikely(!queue))
695 return -EINVAL;
696
697
698
699
700
701 if (params->cw_min > 0)
702 queue->cw_min = fls(params->cw_min);
703 else
704 queue->cw_min = 5;
705
706 if (params->cw_max > 0)
707 queue->cw_max = fls(params->cw_max);
708 else
709 queue->cw_max = 10;
710
711 queue->aifs = params->aifs;
712 queue->txop = params->txop;
713
714 rt2x00_dbg(rt2x00dev,
715 "Configured TX queue %d - CWmin: %d, CWmax: %d, Aifs: %d, TXop: %d\n",
716 queue_idx, queue->cw_min, queue->cw_max, queue->aifs,
717 queue->txop);
718
719 return 0;
720}
721EXPORT_SYMBOL_GPL(rt2x00mac_conf_tx);
722
723void rt2x00mac_rfkill_poll(struct ieee80211_hw *hw)
724{
725 struct rt2x00_dev *rt2x00dev = hw->priv;
726 bool active = !!rt2x00dev->ops->lib->rfkill_poll(rt2x00dev);
727
728 wiphy_rfkill_set_hw_state(hw->wiphy, !active);
729}
730EXPORT_SYMBOL_GPL(rt2x00mac_rfkill_poll);
731
732void rt2x00mac_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
733 u32 queues, bool drop)
734{
735 struct rt2x00_dev *rt2x00dev = hw->priv;
736 struct data_queue *queue;
737
738 if (!test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags))
739 return;
740
741 tx_queue_for_each(rt2x00dev, queue)
742 rt2x00queue_flush_queue(queue, drop);
743}
744EXPORT_SYMBOL_GPL(rt2x00mac_flush);
745
746int rt2x00mac_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant)
747{
748 struct rt2x00_dev *rt2x00dev = hw->priv;
749 struct link_ant *ant = &rt2x00dev->link.ant;
750 struct antenna_setup *def = &rt2x00dev->default_ant;
751 struct antenna_setup setup;
752
753
754
755 if (!tx_ant || (tx_ant & ~3) || !rx_ant || (rx_ant & ~3))
756 return -EINVAL;
757
758
759
760
761 if (ant->flags & ANTENNA_TX_DIVERSITY && tx_ant != 3)
762 ant->flags &= ~ANTENNA_TX_DIVERSITY;
763 if (ant->flags & ANTENNA_RX_DIVERSITY && rx_ant != 3)
764 ant->flags &= ~ANTENNA_RX_DIVERSITY;
765
766
767
768
769
770 if (tx_ant == 3 && def->tx == ANTENNA_SW_DIVERSITY) {
771 tx_ant = ANTENNA_SW_DIVERSITY;
772 ant->flags |= ANTENNA_TX_DIVERSITY;
773 }
774
775 if (rx_ant == 3 && def->rx == ANTENNA_SW_DIVERSITY) {
776 rx_ant = ANTENNA_SW_DIVERSITY;
777 ant->flags |= ANTENNA_RX_DIVERSITY;
778 }
779
780 setup.tx = tx_ant;
781 setup.rx = rx_ant;
782 setup.rx_chain_num = 0;
783 setup.tx_chain_num = 0;
784
785 rt2x00lib_config_antenna(rt2x00dev, setup);
786
787 return 0;
788}
789EXPORT_SYMBOL_GPL(rt2x00mac_set_antenna);
790
791int rt2x00mac_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant)
792{
793 struct rt2x00_dev *rt2x00dev = hw->priv;
794 struct link_ant *ant = &rt2x00dev->link.ant;
795 struct antenna_setup *active = &rt2x00dev->link.ant.active;
796
797
798
799 if (ant->flags & ANTENNA_TX_DIVERSITY)
800 *tx_ant = ANTENNA_HW_DIVERSITY;
801 else
802 *tx_ant = active->tx;
803
804 if (ant->flags & ANTENNA_RX_DIVERSITY)
805 *rx_ant = ANTENNA_HW_DIVERSITY;
806 else
807 *rx_ant = active->rx;
808
809 return 0;
810}
811EXPORT_SYMBOL_GPL(rt2x00mac_get_antenna);
812
813void rt2x00mac_get_ringparam(struct ieee80211_hw *hw,
814 u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max)
815{
816 struct rt2x00_dev *rt2x00dev = hw->priv;
817 struct data_queue *queue;
818
819 tx_queue_for_each(rt2x00dev, queue) {
820 *tx += queue->length;
821 *tx_max += queue->limit;
822 }
823
824 *rx = rt2x00dev->rx->length;
825 *rx_max = rt2x00dev->rx->limit;
826}
827EXPORT_SYMBOL_GPL(rt2x00mac_get_ringparam);
828
829bool rt2x00mac_tx_frames_pending(struct ieee80211_hw *hw)
830{
831 struct rt2x00_dev *rt2x00dev = hw->priv;
832 struct data_queue *queue;
833
834 tx_queue_for_each(rt2x00dev, queue) {
835 if (!rt2x00queue_empty(queue))
836 return true;
837 }
838
839 return false;
840}
841EXPORT_SYMBOL_GPL(rt2x00mac_tx_frames_pending);
842