Commit | Line | Data |
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95ea3627 | 1 | /* |
811aa9ca | 2 | Copyright (C) 2004 - 2008 rt2x00 SourceForge Project |
95ea3627 ID |
3 | <http://rt2x00.serialmonkey.com> |
4 | ||
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. | |
9 | ||
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. | |
14 | ||
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. | |
19 | */ | |
20 | ||
21 | /* | |
22 | Module: rt2x00mac | |
23 | Abstract: rt2x00 generic mac80211 routines. | |
24 | */ | |
25 | ||
95ea3627 ID |
26 | #include <linux/kernel.h> |
27 | #include <linux/module.h> | |
28 | ||
29 | #include "rt2x00.h" | |
30 | #include "rt2x00lib.h" | |
31 | ||
32 | static int rt2x00mac_tx_rts_cts(struct rt2x00_dev *rt2x00dev, | |
181d6902 | 33 | struct data_queue *queue, |
95ea3627 ID |
34 | struct sk_buff *frag_skb, |
35 | struct ieee80211_tx_control *control) | |
36 | { | |
baf26a7e | 37 | struct skb_frame_desc *skbdesc; |
95ea3627 ID |
38 | struct sk_buff *skb; |
39 | int size; | |
40 | ||
41 | if (control->flags & IEEE80211_TXCTL_USE_CTS_PROTECT) | |
42 | size = sizeof(struct ieee80211_cts); | |
43 | else | |
44 | size = sizeof(struct ieee80211_rts); | |
45 | ||
46 | skb = dev_alloc_skb(size + rt2x00dev->hw->extra_tx_headroom); | |
47 | if (!skb) { | |
48 | WARNING(rt2x00dev, "Failed to create RTS/CTS frame.\n"); | |
49 | return NETDEV_TX_BUSY; | |
50 | } | |
51 | ||
52 | skb_reserve(skb, rt2x00dev->hw->extra_tx_headroom); | |
53 | skb_put(skb, size); | |
54 | ||
55 | if (control->flags & IEEE80211_TXCTL_USE_CTS_PROTECT) | |
6bb40dd1 | 56 | ieee80211_ctstoself_get(rt2x00dev->hw, control->vif, |
95ea3627 ID |
57 | frag_skb->data, frag_skb->len, control, |
58 | (struct ieee80211_cts *)(skb->data)); | |
59 | else | |
6bb40dd1 | 60 | ieee80211_rts_get(rt2x00dev->hw, control->vif, |
95ea3627 ID |
61 | frag_skb->data, frag_skb->len, control, |
62 | (struct ieee80211_rts *)(skb->data)); | |
63 | ||
baf26a7e ID |
64 | /* |
65 | * Initialize skb descriptor | |
66 | */ | |
67 | skbdesc = get_skb_frame_desc(skb); | |
68 | memset(skbdesc, 0, sizeof(*skbdesc)); | |
69 | skbdesc->flags |= FRAME_DESC_DRIVER_GENERATED; | |
70 | ||
181d6902 | 71 | if (rt2x00dev->ops->lib->write_tx_data(rt2x00dev, queue, skb, control)) { |
95ea3627 ID |
72 | WARNING(rt2x00dev, "Failed to send RTS/CTS frame.\n"); |
73 | return NETDEV_TX_BUSY; | |
74 | } | |
75 | ||
76 | return NETDEV_TX_OK; | |
77 | } | |
78 | ||
79 | int rt2x00mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb, | |
80 | struct ieee80211_tx_control *control) | |
81 | { | |
82 | struct rt2x00_dev *rt2x00dev = hw->priv; | |
83 | struct ieee80211_hdr *ieee80211hdr = (struct ieee80211_hdr *)skb->data; | |
e58c6aca | 84 | enum data_queue_qid qid = mac80211_queue_to_qid(control->queue); |
181d6902 | 85 | struct data_queue *queue; |
baf26a7e | 86 | struct skb_frame_desc *skbdesc; |
95ea3627 ID |
87 | u16 frame_control; |
88 | ||
066cb637 ID |
89 | /* |
90 | * Mac80211 might be calling this function while we are trying | |
91 | * to remove the device or perhaps suspending it. | |
92 | * Note that we can only stop the TX queues inside the TX path | |
93 | * due to possible race conditions in mac80211. | |
94 | */ | |
95 | if (!test_bit(DEVICE_PRESENT, &rt2x00dev->flags)) { | |
96 | ieee80211_stop_queues(hw); | |
1230cb83 | 97 | return NETDEV_TX_OK; |
066cb637 ID |
98 | } |
99 | ||
95ea3627 | 100 | /* |
181d6902 | 101 | * Determine which queue to put packet on. |
95ea3627 | 102 | */ |
e4030a2f ID |
103 | if (control->flags & IEEE80211_TXCTL_SEND_AFTER_DTIM && |
104 | test_bit(DRIVER_REQUIRE_ATIM_QUEUE, &rt2x00dev->flags)) | |
e58c6aca | 105 | queue = rt2x00queue_get_queue(rt2x00dev, QID_ATIM); |
e4030a2f | 106 | else |
e58c6aca | 107 | queue = rt2x00queue_get_queue(rt2x00dev, qid); |
181d6902 | 108 | if (unlikely(!queue)) { |
95ea3627 ID |
109 | ERROR(rt2x00dev, |
110 | "Attempt to send packet over invalid queue %d.\n" | |
e58c6aca | 111 | "Please file bug report to %s.\n", qid, DRV_PROJECT); |
95ea3627 ID |
112 | dev_kfree_skb_any(skb); |
113 | return NETDEV_TX_OK; | |
114 | } | |
115 | ||
116 | /* | |
117 | * If CTS/RTS is required. and this frame is not CTS or RTS, | |
118 | * create and queue that frame first. But make sure we have | |
119 | * at least enough entries available to send this CTS/RTS | |
120 | * frame as well as the data frame. | |
2d9ccf84 ID |
121 | * Note that when the driver has set the set_rts_threshold() |
122 | * callback function it doesn't need software generation of | |
123 | * neither RTS or CTS-to-self frames and handles everything | |
124 | * inside the hardware. | |
95ea3627 ID |
125 | */ |
126 | frame_control = le16_to_cpu(ieee80211hdr->frame_control); | |
127 | if (!is_rts_frame(frame_control) && !is_cts_frame(frame_control) && | |
128 | (control->flags & (IEEE80211_TXCTL_USE_RTS_CTS | | |
2d9ccf84 ID |
129 | IEEE80211_TXCTL_USE_CTS_PROTECT)) && |
130 | !rt2x00dev->ops->hw->set_rts_threshold) { | |
181d6902 | 131 | if (rt2x00queue_available(queue) <= 1) { |
1230cb83 | 132 | ieee80211_stop_queue(rt2x00dev->hw, control->queue); |
95ea3627 | 133 | return NETDEV_TX_BUSY; |
1230cb83 | 134 | } |
95ea3627 | 135 | |
181d6902 | 136 | if (rt2x00mac_tx_rts_cts(rt2x00dev, queue, skb, control)) { |
1230cb83 | 137 | ieee80211_stop_queue(rt2x00dev->hw, control->queue); |
95ea3627 | 138 | return NETDEV_TX_BUSY; |
1230cb83 | 139 | } |
95ea3627 ID |
140 | } |
141 | ||
baf26a7e ID |
142 | /* |
143 | * Initialize skb descriptor | |
144 | */ | |
145 | skbdesc = get_skb_frame_desc(skb); | |
146 | memset(skbdesc, 0, sizeof(*skbdesc)); | |
147 | ||
181d6902 | 148 | if (rt2x00dev->ops->lib->write_tx_data(rt2x00dev, queue, skb, control)) { |
1230cb83 | 149 | ieee80211_stop_queue(rt2x00dev->hw, control->queue); |
95ea3627 | 150 | return NETDEV_TX_BUSY; |
1230cb83 ID |
151 | } |
152 | ||
181d6902 | 153 | if (rt2x00queue_full(queue)) |
1230cb83 | 154 | ieee80211_stop_queue(rt2x00dev->hw, control->queue); |
95ea3627 ID |
155 | |
156 | if (rt2x00dev->ops->lib->kick_tx_queue) | |
e58c6aca | 157 | rt2x00dev->ops->lib->kick_tx_queue(rt2x00dev, qid); |
95ea3627 ID |
158 | |
159 | return NETDEV_TX_OK; | |
160 | } | |
161 | EXPORT_SYMBOL_GPL(rt2x00mac_tx); | |
162 | ||
163 | int rt2x00mac_start(struct ieee80211_hw *hw) | |
164 | { | |
165 | struct rt2x00_dev *rt2x00dev = hw->priv; | |
95ea3627 | 166 | |
e37ea213 | 167 | if (!test_bit(DEVICE_PRESENT, &rt2x00dev->flags)) |
95ea3627 ID |
168 | return 0; |
169 | ||
e37ea213 | 170 | return rt2x00lib_start(rt2x00dev); |
95ea3627 ID |
171 | } |
172 | EXPORT_SYMBOL_GPL(rt2x00mac_start); | |
173 | ||
174 | void rt2x00mac_stop(struct ieee80211_hw *hw) | |
175 | { | |
176 | struct rt2x00_dev *rt2x00dev = hw->priv; | |
177 | ||
066cb637 ID |
178 | if (!test_bit(DEVICE_PRESENT, &rt2x00dev->flags)) |
179 | return; | |
180 | ||
e37ea213 | 181 | rt2x00lib_stop(rt2x00dev); |
95ea3627 ID |
182 | } |
183 | EXPORT_SYMBOL_GPL(rt2x00mac_stop); | |
184 | ||
185 | int rt2x00mac_add_interface(struct ieee80211_hw *hw, | |
186 | struct ieee80211_if_init_conf *conf) | |
187 | { | |
188 | struct rt2x00_dev *rt2x00dev = hw->priv; | |
6bb40dd1 | 189 | struct rt2x00_intf *intf = vif_to_intf(conf->vif); |
e58c6aca | 190 | struct data_queue *queue = rt2x00queue_get_queue(rt2x00dev, QID_BEACON); |
6bb40dd1 ID |
191 | struct queue_entry *entry = NULL; |
192 | unsigned int i; | |
95ea3627 ID |
193 | |
194 | /* | |
6bb40dd1 ID |
195 | * Don't allow interfaces to be added |
196 | * the device has disappeared. | |
95ea3627 | 197 | */ |
066cb637 | 198 | if (!test_bit(DEVICE_PRESENT, &rt2x00dev->flags) || |
6bb40dd1 ID |
199 | !test_bit(DEVICE_STARTED, &rt2x00dev->flags)) |
200 | return -ENODEV; | |
201 | ||
202 | /* | |
62e70cf8 ID |
203 | * We don't support mixed combinations of sta and ap virtual |
204 | * interfaces. We can only add this interface when the rival | |
205 | * interface count is 0. | |
6bb40dd1 | 206 | */ |
62e70cf8 ID |
207 | if ((conf->type == IEEE80211_IF_TYPE_AP && rt2x00dev->intf_sta_count) || |
208 | (conf->type != IEEE80211_IF_TYPE_AP && rt2x00dev->intf_ap_count)) | |
6bb40dd1 ID |
209 | return -ENOBUFS; |
210 | ||
211 | /* | |
212 | * Check if we exceeded the maximum amount of supported interfaces. | |
213 | */ | |
214 | if ((conf->type == IEEE80211_IF_TYPE_AP && | |
215 | rt2x00dev->intf_ap_count >= rt2x00dev->ops->max_ap_intf) || | |
216 | (conf->type != IEEE80211_IF_TYPE_AP && | |
217 | rt2x00dev->intf_sta_count >= rt2x00dev->ops->max_sta_intf)) | |
218 | return -ENOBUFS; | |
219 | ||
220 | /* | |
221 | * Loop through all beacon queues to find a free | |
222 | * entry. Since there are as much beacon entries | |
223 | * as the maximum interfaces, this search shouldn't | |
224 | * fail. | |
225 | */ | |
226 | for (i = 0; i < queue->limit; i++) { | |
227 | entry = &queue->entries[i]; | |
228 | if (!__test_and_set_bit(ENTRY_BCN_ASSIGNED, &entry->flags)) | |
229 | break; | |
230 | } | |
231 | ||
232 | if (unlikely(i == queue->limit)) | |
95ea3627 ID |
233 | return -ENOBUFS; |
234 | ||
6bb40dd1 ID |
235 | /* |
236 | * We are now absolutely sure the interface can be created, | |
237 | * increase interface count and start initialization. | |
238 | */ | |
239 | ||
240 | if (conf->type == IEEE80211_IF_TYPE_AP) | |
241 | rt2x00dev->intf_ap_count++; | |
242 | else | |
243 | rt2x00dev->intf_sta_count++; | |
244 | ||
245 | spin_lock_init(&intf->lock); | |
246 | intf->beacon = entry; | |
247 | ||
4150c572 JB |
248 | if (conf->type == IEEE80211_IF_TYPE_AP) |
249 | memcpy(&intf->bssid, conf->mac_addr, ETH_ALEN); | |
250 | memcpy(&intf->mac, conf->mac_addr, ETH_ALEN); | |
95ea3627 ID |
251 | |
252 | /* | |
95ea3627 | 253 | * The MAC adddress must be configured after the device |
4150c572 JB |
254 | * has been initialized. Otherwise the device can reset |
255 | * the MAC registers. | |
95ea3627 | 256 | */ |
6bb40dd1 | 257 | rt2x00lib_config_intf(rt2x00dev, intf, conf->type, intf->mac, NULL); |
95ea3627 | 258 | |
e0b005fa ID |
259 | /* |
260 | * Some filters depend on the current working mode. We can force | |
261 | * an update during the next configure_filter() run by mac80211 by | |
262 | * resetting the current packet_filter state. | |
263 | */ | |
264 | rt2x00dev->packet_filter = 0; | |
265 | ||
95ea3627 ID |
266 | return 0; |
267 | } | |
268 | EXPORT_SYMBOL_GPL(rt2x00mac_add_interface); | |
269 | ||
270 | void rt2x00mac_remove_interface(struct ieee80211_hw *hw, | |
271 | struct ieee80211_if_init_conf *conf) | |
272 | { | |
273 | struct rt2x00_dev *rt2x00dev = hw->priv; | |
6bb40dd1 | 274 | struct rt2x00_intf *intf = vif_to_intf(conf->vif); |
95ea3627 ID |
275 | |
276 | /* | |
066cb637 ID |
277 | * Don't allow interfaces to be remove while |
278 | * either the device has disappeared or when | |
279 | * no interface is present. | |
95ea3627 | 280 | */ |
066cb637 | 281 | if (!test_bit(DEVICE_PRESENT, &rt2x00dev->flags) || |
6bb40dd1 ID |
282 | (conf->type == IEEE80211_IF_TYPE_AP && !rt2x00dev->intf_ap_count) || |
283 | (conf->type != IEEE80211_IF_TYPE_AP && !rt2x00dev->intf_sta_count)) | |
95ea3627 ID |
284 | return; |
285 | ||
6bb40dd1 ID |
286 | if (conf->type == IEEE80211_IF_TYPE_AP) |
287 | rt2x00dev->intf_ap_count--; | |
288 | else | |
289 | rt2x00dev->intf_sta_count--; | |
290 | ||
291 | /* | |
292 | * Release beacon entry so it is available for | |
293 | * new interfaces again. | |
294 | */ | |
295 | __clear_bit(ENTRY_BCN_ASSIGNED, &intf->beacon->flags); | |
95ea3627 ID |
296 | |
297 | /* | |
298 | * Make sure the bssid and mac address registers | |
299 | * are cleared to prevent false ACKing of frames. | |
300 | */ | |
6bb40dd1 ID |
301 | rt2x00lib_config_intf(rt2x00dev, intf, |
302 | IEEE80211_IF_TYPE_INVALID, NULL, NULL); | |
95ea3627 ID |
303 | } |
304 | EXPORT_SYMBOL_GPL(rt2x00mac_remove_interface); | |
305 | ||
306 | int rt2x00mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf) | |
307 | { | |
308 | struct rt2x00_dev *rt2x00dev = hw->priv; | |
309 | ||
310 | /* | |
066cb637 ID |
311 | * Mac80211 might be calling this function while we are trying |
312 | * to remove the device or perhaps suspending it. | |
95ea3627 | 313 | */ |
066cb637 | 314 | if (!test_bit(DEVICE_PRESENT, &rt2x00dev->flags)) |
95ea3627 ID |
315 | return 0; |
316 | ||
317 | /* | |
318 | * Check if we need to disable the radio, | |
319 | * if this is not the case, at least the RX must be disabled. | |
320 | */ | |
321 | if (test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags)) { | |
322 | if (!conf->radio_enabled) | |
323 | rt2x00lib_disable_radio(rt2x00dev); | |
324 | else | |
5cbf830e | 325 | rt2x00lib_toggle_rx(rt2x00dev, STATE_RADIO_RX_OFF); |
95ea3627 ID |
326 | } |
327 | ||
066cb637 | 328 | rt2x00lib_config(rt2x00dev, conf, 0); |
95ea3627 | 329 | |
95ea3627 ID |
330 | /* |
331 | * Reenable RX only if the radio should be on. | |
332 | */ | |
333 | if (test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags)) | |
5cbf830e | 334 | rt2x00lib_toggle_rx(rt2x00dev, STATE_RADIO_RX_ON); |
95ea3627 ID |
335 | else if (conf->radio_enabled) |
336 | return rt2x00lib_enable_radio(rt2x00dev); | |
337 | ||
338 | return 0; | |
339 | } | |
340 | EXPORT_SYMBOL_GPL(rt2x00mac_config); | |
341 | ||
32bfd35d JB |
342 | int rt2x00mac_config_interface(struct ieee80211_hw *hw, |
343 | struct ieee80211_vif *vif, | |
95ea3627 ID |
344 | struct ieee80211_if_conf *conf) |
345 | { | |
346 | struct rt2x00_dev *rt2x00dev = hw->priv; | |
6bb40dd1 | 347 | struct rt2x00_intf *intf = vif_to_intf(vif); |
95ea3627 ID |
348 | int status; |
349 | ||
350 | /* | |
066cb637 ID |
351 | * Mac80211 might be calling this function while we are trying |
352 | * to remove the device or perhaps suspending it. | |
95ea3627 | 353 | */ |
066cb637 | 354 | if (!test_bit(DEVICE_PRESENT, &rt2x00dev->flags)) |
95ea3627 ID |
355 | return 0; |
356 | ||
6bb40dd1 | 357 | spin_lock(&intf->lock); |
95ea3627 ID |
358 | |
359 | /* | |
360 | * If the interface does not work in master mode, | |
361 | * then the bssid value in the interface structure | |
362 | * should now be set. | |
363 | */ | |
364 | if (conf->type != IEEE80211_IF_TYPE_AP) | |
365 | memcpy(&intf->bssid, conf->bssid, ETH_ALEN); | |
6bb40dd1 ID |
366 | |
367 | spin_unlock(&intf->lock); | |
95ea3627 | 368 | |
e44df929 ID |
369 | /* |
370 | * Call rt2x00_config_intf() outside of the spinlock context since | |
371 | * the call will sleep for USB drivers. By using the ieee80211_if_conf | |
372 | * values as arguments we make keep access to rt2x00_intf thread safe | |
373 | * even without the lock. | |
374 | */ | |
375 | rt2x00lib_config_intf(rt2x00dev, intf, conf->type, NULL, conf->bssid); | |
376 | ||
95ea3627 ID |
377 | /* |
378 | * We only need to initialize the beacon when master mode is enabled. | |
379 | */ | |
380 | if (conf->type != IEEE80211_IF_TYPE_AP || !conf->beacon) | |
381 | return 0; | |
382 | ||
383 | status = rt2x00dev->ops->hw->beacon_update(rt2x00dev->hw, | |
384 | conf->beacon, | |
385 | conf->beacon_control); | |
386 | if (status) | |
387 | dev_kfree_skb(conf->beacon); | |
388 | ||
389 | return status; | |
390 | } | |
391 | EXPORT_SYMBOL_GPL(rt2x00mac_config_interface); | |
392 | ||
3a643d24 ID |
393 | void rt2x00mac_configure_filter(struct ieee80211_hw *hw, |
394 | unsigned int changed_flags, | |
395 | unsigned int *total_flags, | |
396 | int mc_count, struct dev_addr_list *mc_list) | |
397 | { | |
398 | struct rt2x00_dev *rt2x00dev = hw->priv; | |
399 | ||
400 | /* | |
401 | * Mask off any flags we are going to ignore | |
402 | * from the total_flags field. | |
403 | */ | |
404 | *total_flags &= | |
405 | FIF_ALLMULTI | | |
406 | FIF_FCSFAIL | | |
407 | FIF_PLCPFAIL | | |
408 | FIF_CONTROL | | |
409 | FIF_OTHER_BSS | | |
410 | FIF_PROMISC_IN_BSS; | |
411 | ||
412 | /* | |
413 | * Apply some rules to the filters: | |
414 | * - Some filters imply different filters to be set. | |
415 | * - Some things we can't filter out at all. | |
416 | * - Multicast filter seems to kill broadcast traffic so never use it. | |
417 | */ | |
418 | *total_flags |= FIF_ALLMULTI; | |
419 | if (*total_flags & FIF_OTHER_BSS || | |
420 | *total_flags & FIF_PROMISC_IN_BSS) | |
421 | *total_flags |= FIF_PROMISC_IN_BSS | FIF_OTHER_BSS; | |
422 | ||
423 | /* | |
424 | * Check if there is any work left for us. | |
425 | */ | |
426 | if (rt2x00dev->packet_filter == *total_flags) | |
427 | return; | |
428 | rt2x00dev->packet_filter = *total_flags; | |
429 | ||
430 | if (!test_bit(DRIVER_REQUIRE_SCHEDULED, &rt2x00dev->flags)) | |
3a643d24 | 431 | rt2x00dev->ops->lib->config_filter(rt2x00dev, *total_flags); |
bc5213f4 ID |
432 | else |
433 | queue_work(rt2x00dev->hw->workqueue, &rt2x00dev->filter_work); | |
3a643d24 ID |
434 | } |
435 | EXPORT_SYMBOL_GPL(rt2x00mac_configure_filter); | |
436 | ||
95ea3627 ID |
437 | int rt2x00mac_get_stats(struct ieee80211_hw *hw, |
438 | struct ieee80211_low_level_stats *stats) | |
439 | { | |
440 | struct rt2x00_dev *rt2x00dev = hw->priv; | |
441 | ||
442 | /* | |
443 | * The dot11ACKFailureCount, dot11RTSFailureCount and | |
444 | * dot11RTSSuccessCount are updated in interrupt time. | |
445 | * dot11FCSErrorCount is updated in the link tuner. | |
446 | */ | |
447 | memcpy(stats, &rt2x00dev->low_level_stats, sizeof(*stats)); | |
448 | ||
449 | return 0; | |
450 | } | |
451 | EXPORT_SYMBOL_GPL(rt2x00mac_get_stats); | |
452 | ||
453 | int rt2x00mac_get_tx_stats(struct ieee80211_hw *hw, | |
454 | struct ieee80211_tx_queue_stats *stats) | |
455 | { | |
456 | struct rt2x00_dev *rt2x00dev = hw->priv; | |
457 | unsigned int i; | |
458 | ||
181d6902 | 459 | for (i = 0; i < hw->queues; i++) { |
57ffc589 JB |
460 | stats[i].len = rt2x00dev->tx[i].length; |
461 | stats[i].limit = rt2x00dev->tx[i].limit; | |
462 | stats[i].count = rt2x00dev->tx[i].count; | |
181d6902 | 463 | } |
95ea3627 ID |
464 | |
465 | return 0; | |
466 | } | |
467 | EXPORT_SYMBOL_GPL(rt2x00mac_get_tx_stats); | |
468 | ||
471b3efd JB |
469 | void rt2x00mac_bss_info_changed(struct ieee80211_hw *hw, |
470 | struct ieee80211_vif *vif, | |
471 | struct ieee80211_bss_conf *bss_conf, | |
472 | u32 changes) | |
5c58ee51 ID |
473 | { |
474 | struct rt2x00_dev *rt2x00dev = hw->priv; | |
6bb40dd1 | 475 | struct rt2x00_intf *intf = vif_to_intf(vif); |
3a643d24 | 476 | unsigned int delayed = 0; |
5c58ee51 ID |
477 | |
478 | /* | |
6bb40dd1 ID |
479 | * When the association status has changed we must reset the link |
480 | * tuner counter. This is because some drivers determine if they | |
481 | * should perform link tuning based on the number of seconds | |
482 | * while associated or not associated. | |
5c58ee51 | 483 | */ |
6bb40dd1 ID |
484 | if (changes & BSS_CHANGED_ASSOC) { |
485 | rt2x00dev->link.count = 0; | |
5c58ee51 | 486 | |
6bb40dd1 ID |
487 | if (bss_conf->assoc) |
488 | rt2x00dev->intf_associated++; | |
489 | else | |
490 | rt2x00dev->intf_associated--; | |
a2e1d52a ID |
491 | |
492 | if (!test_bit(DRIVER_REQUIRE_SCHEDULED, &rt2x00dev->flags)) | |
493 | rt2x00leds_led_assoc(rt2x00dev, | |
494 | !!rt2x00dev->intf_associated); | |
495 | else | |
496 | delayed |= DELAYED_LED_ASSOC; | |
6bb40dd1 | 497 | } |
5c58ee51 | 498 | |
6bb40dd1 | 499 | /* |
72810379 ID |
500 | * When the erp information has changed, we should perform |
501 | * additional configuration steps. For all other changes we are done. | |
6bb40dd1 | 502 | */ |
3a643d24 ID |
503 | if (changes & BSS_CHANGED_ERP_PREAMBLE) { |
504 | if (!test_bit(DRIVER_REQUIRE_SCHEDULED, &rt2x00dev->flags)) | |
505 | rt2x00lib_config_erp(rt2x00dev, intf, bss_conf); | |
506 | else | |
507 | delayed |= DELAYED_CONFIG_ERP; | |
508 | } | |
5c58ee51 | 509 | |
72810379 ID |
510 | spin_lock(&intf->lock); |
511 | memcpy(&intf->conf, bss_conf, sizeof(*bss_conf)); | |
3a643d24 ID |
512 | if (delayed) { |
513 | intf->delayed_flags |= delayed; | |
514 | queue_work(rt2x00dev->hw->workqueue, &rt2x00dev->intf_work); | |
515 | } | |
72810379 | 516 | spin_unlock(&intf->lock); |
5c58ee51 | 517 | } |
471b3efd | 518 | EXPORT_SYMBOL_GPL(rt2x00mac_bss_info_changed); |
5c58ee51 | 519 | |
181d6902 | 520 | int rt2x00mac_conf_tx(struct ieee80211_hw *hw, int queue_idx, |
95ea3627 ID |
521 | const struct ieee80211_tx_queue_params *params) |
522 | { | |
523 | struct rt2x00_dev *rt2x00dev = hw->priv; | |
181d6902 | 524 | struct data_queue *queue; |
95ea3627 | 525 | |
181d6902 ID |
526 | queue = rt2x00queue_get_queue(rt2x00dev, queue_idx); |
527 | if (unlikely(!queue)) | |
95ea3627 ID |
528 | return -EINVAL; |
529 | ||
530 | /* | |
531 | * The passed variables are stored as real value ((2^n)-1). | |
532 | * Ralink registers require to know the bit number 'n'. | |
533 | */ | |
3b3618ad | 534 | if (params->cw_min > 0) |
181d6902 | 535 | queue->cw_min = fls(params->cw_min); |
95ea3627 | 536 | else |
181d6902 | 537 | queue->cw_min = 5; /* cw_min: 2^5 = 32. */ |
95ea3627 | 538 | |
3b3618ad | 539 | if (params->cw_max > 0) |
181d6902 | 540 | queue->cw_max = fls(params->cw_max); |
95ea3627 | 541 | else |
181d6902 | 542 | queue->cw_max = 10; /* cw_min: 2^10 = 1024. */ |
95ea3627 | 543 | |
3b3618ad | 544 | if (params->aifs >= 0) |
181d6902 | 545 | queue->aifs = params->aifs; |
95ea3627 | 546 | else |
181d6902 | 547 | queue->aifs = 2; |
95ea3627 ID |
548 | |
549 | INFO(rt2x00dev, | |
181d6902 ID |
550 | "Configured TX queue %d - CWmin: %d, CWmax: %d, Aifs: %d.\n", |
551 | queue_idx, queue->cw_min, queue->cw_max, queue->aifs); | |
95ea3627 ID |
552 | |
553 | return 0; | |
554 | } | |
555 | EXPORT_SYMBOL_GPL(rt2x00mac_conf_tx); |