2 Copyright (C) 2004 - 2009 Ivo van Doorn <IvDoorn@gmail.com>
3 <http://rt2x00.serialmonkey.com>
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the
17 Free Software Foundation, Inc.,
18 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
23 Abstract: rt2x00 generic mac80211 routines.
26 #include <linux/kernel.h>
27 #include <linux/module.h>
30 #include "rt2x00lib.h"
32 static int rt2x00mac_tx_rts_cts(struct rt2x00_dev
*rt2x00dev
,
33 struct data_queue
*queue
,
34 struct sk_buff
*frag_skb
)
36 struct ieee80211_tx_info
*tx_info
= IEEE80211_SKB_CB(frag_skb
);
37 struct ieee80211_tx_info
*rts_info
;
39 unsigned int data_length
;
42 if (tx_info
->control
.rates
[0].flags
& IEEE80211_TX_RC_USE_CTS_PROTECT
)
43 data_length
= sizeof(struct ieee80211_cts
);
45 data_length
= sizeof(struct ieee80211_rts
);
47 skb
= dev_alloc_skb(data_length
+ rt2x00dev
->hw
->extra_tx_headroom
);
49 WARNING(rt2x00dev
, "Failed to create RTS/CTS frame.\n");
53 skb_reserve(skb
, rt2x00dev
->hw
->extra_tx_headroom
);
54 skb_put(skb
, data_length
);
57 * Copy TX information over from original frame to
58 * RTS/CTS frame. Note that we set the no encryption flag
59 * since we don't want this frame to be encrypted.
60 * RTS frames should be acked, while CTS-to-self frames
61 * should not. The ready for TX flag is cleared to prevent
62 * it being automatically send when the descriptor is
63 * written to the hardware.
65 memcpy(skb
->cb
, frag_skb
->cb
, sizeof(skb
->cb
));
66 rts_info
= IEEE80211_SKB_CB(skb
);
67 rts_info
->control
.rates
[0].flags
&= ~IEEE80211_TX_RC_USE_RTS_CTS
;
68 rts_info
->control
.rates
[0].flags
&= ~IEEE80211_TX_RC_USE_CTS_PROTECT
;
70 if (tx_info
->control
.rates
[0].flags
& IEEE80211_TX_RC_USE_CTS_PROTECT
)
71 rts_info
->flags
|= IEEE80211_TX_CTL_NO_ACK
;
73 rts_info
->flags
&= ~IEEE80211_TX_CTL_NO_ACK
;
75 /* Disable hardware encryption */
76 rts_info
->control
.hw_key
= NULL
;
79 * RTS/CTS frame should use the length of the frame plus any
80 * encryption overhead that will be added by the hardware.
82 data_length
+= rt2x00crypto_tx_overhead(rt2x00dev
, skb
);
84 if (tx_info
->control
.rates
[0].flags
& IEEE80211_TX_RC_USE_CTS_PROTECT
)
85 ieee80211_ctstoself_get(rt2x00dev
->hw
, tx_info
->control
.vif
,
86 frag_skb
->data
, data_length
, tx_info
,
87 (struct ieee80211_cts
*)(skb
->data
));
89 ieee80211_rts_get(rt2x00dev
->hw
, tx_info
->control
.vif
,
90 frag_skb
->data
, data_length
, tx_info
,
91 (struct ieee80211_rts
*)(skb
->data
));
93 retval
= rt2x00queue_write_tx_frame(queue
, skb
, true);
95 dev_kfree_skb_any(skb
);
96 WARNING(rt2x00dev
, "Failed to send RTS/CTS frame.\n");
102 int rt2x00mac_tx(struct ieee80211_hw
*hw
, struct sk_buff
*skb
)
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
;
110 * Mac80211 might be calling this function while we are trying
111 * to remove the device or perhaps suspending it.
112 * Note that we can only stop the TX queues inside the TX path
113 * due to possible race conditions in mac80211.
115 if (!test_bit(DEVICE_STATE_PRESENT
, &rt2x00dev
->flags
))
119 * Determine which queue to put packet on.
121 if (tx_info
->flags
& IEEE80211_TX_CTL_SEND_AFTER_DTIM
&&
122 test_bit(DRIVER_REQUIRE_ATIM_QUEUE
, &rt2x00dev
->flags
))
123 queue
= rt2x00queue_get_queue(rt2x00dev
, QID_ATIM
);
125 queue
= rt2x00queue_get_queue(rt2x00dev
, qid
);
126 if (unlikely(!queue
)) {
128 "Attempt to send packet over invalid queue %d.\n"
129 "Please file bug report to %s.\n", qid
, DRV_PROJECT
);
134 * If CTS/RTS is required. create and queue that frame first.
135 * Make sure we have at least enough entries available to send
136 * this CTS/RTS frame as well as the data frame.
137 * Note that when the driver has set the set_rts_threshold()
138 * callback function it doesn't need software generation of
139 * either RTS or CTS-to-self frame and handles everything
140 * inside the hardware.
142 if ((tx_info
->control
.rates
[0].flags
& (IEEE80211_TX_RC_USE_RTS_CTS
|
143 IEEE80211_TX_RC_USE_CTS_PROTECT
)) &&
144 !rt2x00dev
->ops
->hw
->set_rts_threshold
) {
145 if (rt2x00queue_available(queue
) <= 1)
148 if (rt2x00mac_tx_rts_cts(rt2x00dev
, queue
, skb
))
152 if (rt2x00queue_write_tx_frame(queue
, skb
, false))
155 if (rt2x00queue_threshold(queue
))
156 ieee80211_stop_queue(rt2x00dev
->hw
, qid
);
161 ieee80211_stop_queue(rt2x00dev
->hw
, qid
);
162 dev_kfree_skb_any(skb
);
165 EXPORT_SYMBOL_GPL(rt2x00mac_tx
);
167 int rt2x00mac_start(struct ieee80211_hw
*hw
)
169 struct rt2x00_dev
*rt2x00dev
= hw
->priv
;
171 if (!test_bit(DEVICE_STATE_PRESENT
, &rt2x00dev
->flags
))
174 return rt2x00lib_start(rt2x00dev
);
176 EXPORT_SYMBOL_GPL(rt2x00mac_start
);
178 void rt2x00mac_stop(struct ieee80211_hw
*hw
)
180 struct rt2x00_dev
*rt2x00dev
= hw
->priv
;
182 if (!test_bit(DEVICE_STATE_PRESENT
, &rt2x00dev
->flags
))
185 rt2x00lib_stop(rt2x00dev
);
187 EXPORT_SYMBOL_GPL(rt2x00mac_stop
);
189 int rt2x00mac_add_interface(struct ieee80211_hw
*hw
,
190 struct ieee80211_vif
*vif
)
192 struct rt2x00_dev
*rt2x00dev
= hw
->priv
;
193 struct rt2x00_intf
*intf
= vif_to_intf(vif
);
194 struct data_queue
*queue
= rt2x00queue_get_queue(rt2x00dev
, QID_BEACON
);
195 struct queue_entry
*entry
= NULL
;
199 * Don't allow interfaces to be added
200 * the device has disappeared.
202 if (!test_bit(DEVICE_STATE_PRESENT
, &rt2x00dev
->flags
) ||
203 !test_bit(DEVICE_STATE_STARTED
, &rt2x00dev
->flags
))
207 case NL80211_IFTYPE_AP
:
209 * We don't support mixed combinations of
210 * sta and ap interfaces.
212 if (rt2x00dev
->intf_sta_count
)
216 * Check if we exceeded the maximum amount
217 * of supported interfaces.
219 if (rt2x00dev
->intf_ap_count
>= rt2x00dev
->ops
->max_ap_intf
)
223 case NL80211_IFTYPE_STATION
:
224 case NL80211_IFTYPE_ADHOC
:
225 case NL80211_IFTYPE_MESH_POINT
:
226 case NL80211_IFTYPE_WDS
:
228 * We don't support mixed combinations of
229 * sta and ap interfaces.
231 if (rt2x00dev
->intf_ap_count
)
235 * Check if we exceeded the maximum amount
236 * of supported interfaces.
238 if (rt2x00dev
->intf_sta_count
>= rt2x00dev
->ops
->max_sta_intf
)
247 * Loop through all beacon queues to find a free
248 * entry. Since there are as much beacon entries
249 * as the maximum interfaces, this search shouldn't
252 for (i
= 0; i
< queue
->limit
; i
++) {
253 entry
= &queue
->entries
[i
];
254 if (!test_and_set_bit(ENTRY_BCN_ASSIGNED
, &entry
->flags
))
258 if (unlikely(i
== queue
->limit
))
262 * We are now absolutely sure the interface can be created,
263 * increase interface count and start initialization.
266 if (vif
->type
== NL80211_IFTYPE_AP
)
267 rt2x00dev
->intf_ap_count
++;
269 rt2x00dev
->intf_sta_count
++;
271 spin_lock_init(&intf
->lock
);
272 spin_lock_init(&intf
->seqlock
);
273 mutex_init(&intf
->beacon_skb_mutex
);
274 intf
->beacon
= entry
;
277 * The MAC adddress must be configured after the device
278 * has been initialized. Otherwise the device can reset
280 * The BSSID address must only be configured in AP mode,
281 * however we should not send an empty BSSID address for
282 * STA interfaces at this time, since this can cause
283 * invalid behavior in the device.
285 memcpy(&intf
->mac
, vif
->addr
, ETH_ALEN
);
286 if (vif
->type
== NL80211_IFTYPE_AP
) {
287 memcpy(&intf
->bssid
, vif
->addr
, ETH_ALEN
);
288 rt2x00lib_config_intf(rt2x00dev
, intf
, vif
->type
,
289 intf
->mac
, intf
->bssid
);
291 rt2x00lib_config_intf(rt2x00dev
, intf
, vif
->type
,
296 * Some filters depend on the current working mode. We can force
297 * an update during the next configure_filter() run by mac80211 by
298 * resetting the current packet_filter state.
300 rt2x00dev
->packet_filter
= 0;
304 EXPORT_SYMBOL_GPL(rt2x00mac_add_interface
);
306 void rt2x00mac_remove_interface(struct ieee80211_hw
*hw
,
307 struct ieee80211_vif
*vif
)
309 struct rt2x00_dev
*rt2x00dev
= hw
->priv
;
310 struct rt2x00_intf
*intf
= vif_to_intf(vif
);
313 * Don't allow interfaces to be remove while
314 * either the device has disappeared or when
315 * no interface is present.
317 if (!test_bit(DEVICE_STATE_PRESENT
, &rt2x00dev
->flags
) ||
318 (vif
->type
== NL80211_IFTYPE_AP
&& !rt2x00dev
->intf_ap_count
) ||
319 (vif
->type
!= NL80211_IFTYPE_AP
&& !rt2x00dev
->intf_sta_count
))
322 if (vif
->type
== NL80211_IFTYPE_AP
)
323 rt2x00dev
->intf_ap_count
--;
325 rt2x00dev
->intf_sta_count
--;
328 * Release beacon entry so it is available for
329 * new interfaces again.
331 clear_bit(ENTRY_BCN_ASSIGNED
, &intf
->beacon
->flags
);
334 * Make sure the bssid and mac address registers
335 * are cleared to prevent false ACKing of frames.
337 rt2x00lib_config_intf(rt2x00dev
, intf
,
338 NL80211_IFTYPE_UNSPECIFIED
, NULL
, NULL
);
340 EXPORT_SYMBOL_GPL(rt2x00mac_remove_interface
);
342 int rt2x00mac_config(struct ieee80211_hw
*hw
, u32 changed
)
344 struct rt2x00_dev
*rt2x00dev
= hw
->priv
;
345 struct ieee80211_conf
*conf
= &hw
->conf
;
348 * mac80211 might be calling this function while we are trying
349 * to remove the device or perhaps suspending it.
351 if (!test_bit(DEVICE_STATE_PRESENT
, &rt2x00dev
->flags
))
355 * Some configuration parameters (e.g. channel and antenna values) can
356 * only be set when the radio is enabled, but do require the RX to
357 * be off. During this period we should keep link tuning enabled,
358 * if for any reason the link tuner must be reset, this will be
359 * handled by rt2x00lib_config().
361 rt2x00lib_toggle_rx(rt2x00dev
, STATE_RADIO_RX_OFF_LINK
);
364 * When we've just turned on the radio, we want to reprogram
365 * everything to ensure a consistent state
367 rt2x00lib_config(rt2x00dev
, conf
, changed
);
370 * After the radio has been enabled we need to configure
371 * the antenna to the default settings. rt2x00lib_config_antenna()
372 * should determine if any action should be taken based on
373 * checking if diversity has been enabled or no antenna changes
374 * have been made since the last configuration change.
376 rt2x00lib_config_antenna(rt2x00dev
, rt2x00dev
->default_ant
);
378 /* Turn RX back on */
379 rt2x00lib_toggle_rx(rt2x00dev
, STATE_RADIO_RX_ON_LINK
);
383 EXPORT_SYMBOL_GPL(rt2x00mac_config
);
385 void rt2x00mac_configure_filter(struct ieee80211_hw
*hw
,
386 unsigned int changed_flags
,
387 unsigned int *total_flags
,
390 struct rt2x00_dev
*rt2x00dev
= hw
->priv
;
393 * Mask off any flags we are going to ignore
394 * from the total_flags field.
406 * Apply some rules to the filters:
407 * - Some filters imply different filters to be set.
408 * - Some things we can't filter out at all.
409 * - Multicast filter seems to kill broadcast traffic so never use it.
411 *total_flags
|= FIF_ALLMULTI
;
412 if (*total_flags
& FIF_OTHER_BSS
||
413 *total_flags
& FIF_PROMISC_IN_BSS
)
414 *total_flags
|= FIF_PROMISC_IN_BSS
| FIF_OTHER_BSS
;
417 * If the device has a single filter for all control frames,
418 * FIF_CONTROL and FIF_PSPOLL flags imply each other.
419 * And if the device has more than one filter for control frames
420 * of different types, but has no a separate filter for PS Poll frames,
421 * FIF_CONTROL flag implies FIF_PSPOLL.
423 if (!test_bit(DRIVER_SUPPORT_CONTROL_FILTERS
, &rt2x00dev
->flags
)) {
424 if (*total_flags
& FIF_CONTROL
|| *total_flags
& FIF_PSPOLL
)
425 *total_flags
|= FIF_CONTROL
| FIF_PSPOLL
;
427 if (!test_bit(DRIVER_SUPPORT_CONTROL_FILTER_PSPOLL
, &rt2x00dev
->flags
)) {
428 if (*total_flags
& FIF_CONTROL
)
429 *total_flags
|= FIF_PSPOLL
;
433 * Check if there is any work left for us.
435 if (rt2x00dev
->packet_filter
== *total_flags
)
437 rt2x00dev
->packet_filter
= *total_flags
;
439 rt2x00dev
->ops
->lib
->config_filter(rt2x00dev
, *total_flags
);
441 EXPORT_SYMBOL_GPL(rt2x00mac_configure_filter
);
443 static void rt2x00mac_set_tim_iter(void *data
, u8
*mac
,
444 struct ieee80211_vif
*vif
)
446 struct rt2x00_intf
*intf
= vif_to_intf(vif
);
448 if (vif
->type
!= NL80211_IFTYPE_AP
&&
449 vif
->type
!= NL80211_IFTYPE_ADHOC
&&
450 vif
->type
!= NL80211_IFTYPE_MESH_POINT
&&
451 vif
->type
!= NL80211_IFTYPE_WDS
)
454 spin_lock(&intf
->lock
);
455 intf
->delayed_flags
|= DELAYED_UPDATE_BEACON
;
456 spin_unlock(&intf
->lock
);
459 int rt2x00mac_set_tim(struct ieee80211_hw
*hw
, struct ieee80211_sta
*sta
,
462 struct rt2x00_dev
*rt2x00dev
= hw
->priv
;
464 if (!test_bit(DEVICE_STATE_ENABLED_RADIO
, &rt2x00dev
->flags
))
467 ieee80211_iterate_active_interfaces_atomic(rt2x00dev
->hw
,
468 rt2x00mac_set_tim_iter
,
471 /* queue work to upodate the beacon template */
472 ieee80211_queue_work(rt2x00dev
->hw
, &rt2x00dev
->intf_work
);
475 EXPORT_SYMBOL_GPL(rt2x00mac_set_tim
);
477 #ifdef CONFIG_RT2X00_LIB_CRYPTO
478 static void memcpy_tkip(struct rt2x00lib_crypto
*crypto
, u8
*key
, u8 key_len
)
480 if (key_len
> NL80211_TKIP_DATA_OFFSET_ENCR_KEY
)
482 &key
[NL80211_TKIP_DATA_OFFSET_ENCR_KEY
],
483 sizeof(crypto
->key
));
485 if (key_len
> NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY
)
486 memcpy(&crypto
->tx_mic
,
487 &key
[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY
],
488 sizeof(crypto
->tx_mic
));
490 if (key_len
> NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY
)
491 memcpy(&crypto
->rx_mic
,
492 &key
[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY
],
493 sizeof(crypto
->rx_mic
));
496 int rt2x00mac_set_key(struct ieee80211_hw
*hw
, enum set_key_cmd cmd
,
497 struct ieee80211_vif
*vif
, struct ieee80211_sta
*sta
,
498 struct ieee80211_key_conf
*key
)
500 struct rt2x00_dev
*rt2x00dev
= hw
->priv
;
501 struct rt2x00_intf
*intf
= vif_to_intf(vif
);
502 int (*set_key
) (struct rt2x00_dev
*rt2x00dev
,
503 struct rt2x00lib_crypto
*crypto
,
504 struct ieee80211_key_conf
*key
);
505 struct rt2x00lib_crypto crypto
;
506 static const u8 bcast_addr
[ETH_ALEN
] =
507 { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, };
509 if (!test_bit(DEVICE_STATE_PRESENT
, &rt2x00dev
->flags
))
511 else if (!test_bit(CONFIG_SUPPORT_HW_CRYPTO
, &rt2x00dev
->flags
))
513 else if (key
->keylen
> 32)
516 memset(&crypto
, 0, sizeof(crypto
));
519 * When in STA mode, bssidx is always 0 otherwise local_address[5]
520 * contains the bss number, see BSS_ID_MASK comments for details.
522 if (rt2x00dev
->intf_sta_count
)
525 crypto
.bssidx
= intf
->mac
[5] & (rt2x00dev
->ops
->max_ap_intf
- 1);
527 crypto
.cipher
= rt2x00crypto_key_to_cipher(key
);
528 if (crypto
.cipher
== CIPHER_NONE
)
534 /* some drivers need the AID */
535 crypto
.aid
= sta
->aid
;
536 crypto
.address
= sta
->addr
;
538 crypto
.address
= bcast_addr
;
540 if (crypto
.cipher
== CIPHER_TKIP
)
541 memcpy_tkip(&crypto
, &key
->key
[0], key
->keylen
);
543 memcpy(&crypto
.key
, &key
->key
[0], key
->keylen
);
545 * Each BSS has a maximum of 4 shared keys.
546 * Shared key index values:
554 * Both pairwise as shared key indeces are determined by
555 * driver. This is required because the hardware requires
556 * keys to be assigned in correct order (When key 1 is
557 * provided but key 0 is not, then the key is not found
558 * by the hardware during RX).
563 if (key
->flags
& IEEE80211_KEY_FLAG_PAIRWISE
)
564 set_key
= rt2x00dev
->ops
->lib
->config_pairwise_key
;
566 set_key
= rt2x00dev
->ops
->lib
->config_shared_key
;
571 return set_key(rt2x00dev
, &crypto
, key
);
573 EXPORT_SYMBOL_GPL(rt2x00mac_set_key
);
574 #endif /* CONFIG_RT2X00_LIB_CRYPTO */
576 void rt2x00mac_sw_scan_start(struct ieee80211_hw
*hw
)
578 struct rt2x00_dev
*rt2x00dev
= hw
->priv
;
579 __set_bit(DEVICE_STATE_SCANNING
, &rt2x00dev
->flags
);
580 rt2x00link_stop_tuner(rt2x00dev
);
582 EXPORT_SYMBOL_GPL(rt2x00mac_sw_scan_start
);
584 void rt2x00mac_sw_scan_complete(struct ieee80211_hw
*hw
)
586 struct rt2x00_dev
*rt2x00dev
= hw
->priv
;
587 __clear_bit(DEVICE_STATE_SCANNING
, &rt2x00dev
->flags
);
588 rt2x00link_start_tuner(rt2x00dev
);
590 EXPORT_SYMBOL_GPL(rt2x00mac_sw_scan_complete
);
592 int rt2x00mac_get_stats(struct ieee80211_hw
*hw
,
593 struct ieee80211_low_level_stats
*stats
)
595 struct rt2x00_dev
*rt2x00dev
= hw
->priv
;
598 * The dot11ACKFailureCount, dot11RTSFailureCount and
599 * dot11RTSSuccessCount are updated in interrupt time.
600 * dot11FCSErrorCount is updated in the link tuner.
602 memcpy(stats
, &rt2x00dev
->low_level_stats
, sizeof(*stats
));
606 EXPORT_SYMBOL_GPL(rt2x00mac_get_stats
);
608 void rt2x00mac_bss_info_changed(struct ieee80211_hw
*hw
,
609 struct ieee80211_vif
*vif
,
610 struct ieee80211_bss_conf
*bss_conf
,
613 struct rt2x00_dev
*rt2x00dev
= hw
->priv
;
614 struct rt2x00_intf
*intf
= vif_to_intf(vif
);
617 * mac80211 might be calling this function while we are trying
618 * to remove the device or perhaps suspending it.
620 if (!test_bit(DEVICE_STATE_PRESENT
, &rt2x00dev
->flags
))
623 spin_lock(&intf
->lock
);
626 * conf->bssid can be NULL if coming from the internal
627 * beacon update routine.
629 if (changes
& BSS_CHANGED_BSSID
)
630 memcpy(&intf
->bssid
, bss_conf
->bssid
, ETH_ALEN
);
632 spin_unlock(&intf
->lock
);
635 * Call rt2x00_config_intf() outside of the spinlock context since
636 * the call will sleep for USB drivers. By using the ieee80211_if_conf
637 * values as arguments we make keep access to rt2x00_intf thread safe
638 * even without the lock.
640 if (changes
& BSS_CHANGED_BSSID
)
641 rt2x00lib_config_intf(rt2x00dev
, intf
, vif
->type
, NULL
,
647 if (changes
& (BSS_CHANGED_BEACON
| BSS_CHANGED_BEACON_ENABLED
))
648 rt2x00queue_update_beacon(rt2x00dev
, vif
,
649 bss_conf
->enable_beacon
);
652 * When the association status has changed we must reset the link
653 * tuner counter. This is because some drivers determine if they
654 * should perform link tuning based on the number of seconds
655 * while associated or not associated.
657 if (changes
& BSS_CHANGED_ASSOC
) {
658 rt2x00dev
->link
.count
= 0;
661 rt2x00dev
->intf_associated
++;
663 rt2x00dev
->intf_associated
--;
665 rt2x00leds_led_assoc(rt2x00dev
, !!rt2x00dev
->intf_associated
);
669 * When the erp information has changed, we should perform
670 * additional configuration steps. For all other changes we are done.
672 if (changes
& ~(BSS_CHANGED_ASSOC
| BSS_CHANGED_HT
))
673 rt2x00lib_config_erp(rt2x00dev
, intf
, bss_conf
);
675 EXPORT_SYMBOL_GPL(rt2x00mac_bss_info_changed
);
677 int rt2x00mac_conf_tx(struct ieee80211_hw
*hw
, u16 queue_idx
,
678 const struct ieee80211_tx_queue_params
*params
)
680 struct rt2x00_dev
*rt2x00dev
= hw
->priv
;
681 struct data_queue
*queue
;
683 queue
= rt2x00queue_get_queue(rt2x00dev
, queue_idx
);
684 if (unlikely(!queue
))
688 * The passed variables are stored as real value ((2^n)-1).
689 * Ralink registers require to know the bit number 'n'.
691 if (params
->cw_min
> 0)
692 queue
->cw_min
= fls(params
->cw_min
);
694 queue
->cw_min
= 5; /* cw_min: 2^5 = 32. */
696 if (params
->cw_max
> 0)
697 queue
->cw_max
= fls(params
->cw_max
);
699 queue
->cw_max
= 10; /* cw_min: 2^10 = 1024. */
701 queue
->aifs
= params
->aifs
;
702 queue
->txop
= params
->txop
;
705 "Configured TX queue %d - CWmin: %d, CWmax: %d, Aifs: %d, TXop: %d.\n",
706 queue_idx
, queue
->cw_min
, queue
->cw_max
, queue
->aifs
, queue
->txop
);
710 EXPORT_SYMBOL_GPL(rt2x00mac_conf_tx
);
712 void rt2x00mac_rfkill_poll(struct ieee80211_hw
*hw
)
714 struct rt2x00_dev
*rt2x00dev
= hw
->priv
;
715 bool active
= !!rt2x00dev
->ops
->lib
->rfkill_poll(rt2x00dev
);
717 wiphy_rfkill_set_hw_state(hw
->wiphy
, !active
);
719 EXPORT_SYMBOL_GPL(rt2x00mac_rfkill_poll
);