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