This source file includes following definitions.
- mt7615_start
- mt7615_stop
- get_omac_idx
- mt7615_add_interface
- mt7615_remove_interface
- mt7615_set_channel
- mt7615_set_key
- mt7615_config
- mt7615_conf_tx
- mt7615_configure_filter
- mt7615_bss_info_changed
- mt7615_channel_switch_beacon
- mt7615_sta_add
- mt7615_sta_assoc
- mt7615_sta_remove
- mt7615_sta_rate_tbl_update
- mt7615_tx
- mt7615_set_rts_threshold
- mt7615_ampdu_action
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8
9 #include <linux/etherdevice.h>
10 #include <linux/platform_device.h>
11 #include <linux/pci.h>
12 #include <linux/module.h>
13 #include "mt7615.h"
14
15 static int mt7615_start(struct ieee80211_hw *hw)
16 {
17 struct mt7615_dev *dev = hw->priv;
18
19 dev->mt76.survey_time = ktime_get_boottime();
20 set_bit(MT76_STATE_RUNNING, &dev->mt76.state);
21 ieee80211_queue_delayed_work(mt76_hw(dev), &dev->mt76.mac_work,
22 MT7615_WATCHDOG_TIME);
23
24 return 0;
25 }
26
27 static void mt7615_stop(struct ieee80211_hw *hw)
28 {
29 struct mt7615_dev *dev = hw->priv;
30
31 clear_bit(MT76_STATE_RUNNING, &dev->mt76.state);
32 cancel_delayed_work_sync(&dev->mt76.mac_work);
33 }
34
35 static int get_omac_idx(enum nl80211_iftype type, u32 mask)
36 {
37 int i;
38
39 switch (type) {
40 case NL80211_IFTYPE_AP:
41 case NL80211_IFTYPE_MESH_POINT:
42
43 if (~mask & BIT(HW_BSSID_0))
44 return HW_BSSID_0;
45
46 for (i = EXT_BSSID_1; i < EXT_BSSID_END; i++)
47 if (~mask & BIT(i))
48 return i;
49
50 break;
51 case NL80211_IFTYPE_STATION:
52
53 for (i = HW_BSSID_1; i < HW_BSSID_MAX; i++)
54 if (~mask & BIT(i))
55 return i;
56
57 break;
58 default:
59 WARN_ON(1);
60 break;
61 };
62
63 return -1;
64 }
65
66 static int mt7615_add_interface(struct ieee80211_hw *hw,
67 struct ieee80211_vif *vif)
68 {
69 struct mt7615_vif *mvif = (struct mt7615_vif *)vif->drv_priv;
70 struct mt7615_dev *dev = hw->priv;
71 struct mt76_txq *mtxq;
72 int idx, ret = 0;
73
74 mutex_lock(&dev->mt76.mutex);
75
76 mvif->idx = ffs(~dev->vif_mask) - 1;
77 if (mvif->idx >= MT7615_MAX_INTERFACES) {
78 ret = -ENOSPC;
79 goto out;
80 }
81
82 idx = get_omac_idx(vif->type, dev->omac_mask);
83 if (idx < 0) {
84 ret = -ENOSPC;
85 goto out;
86 }
87 mvif->omac_idx = idx;
88
89
90 mvif->band_idx = 0;
91 mvif->wmm_idx = mvif->idx % MT7615_MAX_WMM_SETS;
92
93 ret = mt7615_mcu_set_dev_info(dev, vif, 1);
94 if (ret)
95 goto out;
96
97 dev->vif_mask |= BIT(mvif->idx);
98 dev->omac_mask |= BIT(mvif->omac_idx);
99 idx = MT7615_WTBL_RESERVED - mvif->idx;
100 mvif->sta.wcid.idx = idx;
101 mvif->sta.wcid.hw_key_idx = -1;
102
103 rcu_assign_pointer(dev->mt76.wcid[idx], &mvif->sta.wcid);
104 mtxq = (struct mt76_txq *)vif->txq->drv_priv;
105 mtxq->wcid = &mvif->sta.wcid;
106 mt76_txq_init(&dev->mt76, vif->txq);
107
108 out:
109 mutex_unlock(&dev->mt76.mutex);
110
111 return ret;
112 }
113
114 static void mt7615_remove_interface(struct ieee80211_hw *hw,
115 struct ieee80211_vif *vif)
116 {
117 struct mt7615_vif *mvif = (struct mt7615_vif *)vif->drv_priv;
118 struct mt7615_dev *dev = hw->priv;
119 int idx = mvif->sta.wcid.idx;
120
121
122
123 mt7615_mcu_set_dev_info(dev, vif, 0);
124
125 rcu_assign_pointer(dev->mt76.wcid[idx], NULL);
126 mt76_txq_remove(&dev->mt76, vif->txq);
127
128 mutex_lock(&dev->mt76.mutex);
129 dev->vif_mask &= ~BIT(mvif->idx);
130 dev->omac_mask &= ~BIT(mvif->omac_idx);
131 mutex_unlock(&dev->mt76.mutex);
132 }
133
134 static int mt7615_set_channel(struct mt7615_dev *dev)
135 {
136 int ret;
137
138 cancel_delayed_work_sync(&dev->mt76.mac_work);
139
140 mutex_lock(&dev->mt76.mutex);
141 set_bit(MT76_RESET, &dev->mt76.state);
142
143 mt7615_dfs_check_channel(dev);
144
145 mt76_set_channel(&dev->mt76);
146
147 ret = mt7615_mcu_set_channel(dev);
148 if (ret)
149 goto out;
150
151 ret = mt7615_dfs_init_radar_detector(dev);
152 mt7615_mac_cca_stats_reset(dev);
153 dev->mt76.survey_time = ktime_get_boottime();
154
155 mt76_rr(dev, MT_MIB_SDR16(0));
156
157 out:
158 clear_bit(MT76_RESET, &dev->mt76.state);
159 mutex_unlock(&dev->mt76.mutex);
160
161 mt76_txq_schedule_all(&dev->mt76);
162 ieee80211_queue_delayed_work(mt76_hw(dev), &dev->mt76.mac_work,
163 MT7615_WATCHDOG_TIME);
164 return ret;
165 }
166
167 static int mt7615_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
168 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
169 struct ieee80211_key_conf *key)
170 {
171 struct mt7615_dev *dev = hw->priv;
172 struct mt7615_vif *mvif = (struct mt7615_vif *)vif->drv_priv;
173 struct mt7615_sta *msta = sta ? (struct mt7615_sta *)sta->drv_priv :
174 &mvif->sta;
175 struct mt76_wcid *wcid = &msta->wcid;
176 int idx = key->keyidx;
177
178
179
180
181 if ((vif->type == NL80211_IFTYPE_ADHOC ||
182 vif->type == NL80211_IFTYPE_MESH_POINT) &&
183 (key->cipher == WLAN_CIPHER_SUITE_TKIP ||
184 key->cipher == WLAN_CIPHER_SUITE_CCMP) &&
185 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE))
186 return -EOPNOTSUPP;
187
188
189 switch (key->cipher) {
190 case WLAN_CIPHER_SUITE_AES_CMAC:
191 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIE;
192 break;
193 case WLAN_CIPHER_SUITE_WEP40:
194 case WLAN_CIPHER_SUITE_WEP104:
195 case WLAN_CIPHER_SUITE_TKIP:
196 case WLAN_CIPHER_SUITE_CCMP:
197 case WLAN_CIPHER_SUITE_CCMP_256:
198 case WLAN_CIPHER_SUITE_GCMP:
199 case WLAN_CIPHER_SUITE_GCMP_256:
200 case WLAN_CIPHER_SUITE_SMS4:
201 break;
202 default:
203 return -EOPNOTSUPP;
204 }
205
206 if (cmd == SET_KEY) {
207 key->hw_key_idx = wcid->idx;
208 wcid->hw_key_idx = idx;
209 } else if (idx == wcid->hw_key_idx) {
210 wcid->hw_key_idx = -1;
211 }
212 mt76_wcid_key_setup(&dev->mt76, wcid,
213 cmd == SET_KEY ? key : NULL);
214
215 return mt7615_mac_wtbl_set_key(dev, wcid, key, cmd);
216 }
217
218 static int mt7615_config(struct ieee80211_hw *hw, u32 changed)
219 {
220 struct mt7615_dev *dev = hw->priv;
221 int ret = 0;
222
223 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
224 ieee80211_stop_queues(hw);
225 ret = mt7615_set_channel(dev);
226 ieee80211_wake_queues(hw);
227 }
228
229 mutex_lock(&dev->mt76.mutex);
230
231 if (changed & IEEE80211_CONF_CHANGE_POWER)
232 ret = mt7615_mcu_set_tx_power(dev);
233
234 if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
235 if (!(hw->conf.flags & IEEE80211_CONF_MONITOR))
236 dev->mt76.rxfilter |= MT_WF_RFCR_DROP_OTHER_UC;
237 else
238 dev->mt76.rxfilter &= ~MT_WF_RFCR_DROP_OTHER_UC;
239
240 mt76_wr(dev, MT_WF_RFCR, dev->mt76.rxfilter);
241 }
242
243 mutex_unlock(&dev->mt76.mutex);
244
245 return ret;
246 }
247
248 static int
249 mt7615_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif, u16 queue,
250 const struct ieee80211_tx_queue_params *params)
251 {
252 struct mt7615_vif *mvif = (struct mt7615_vif *)vif->drv_priv;
253 struct mt7615_dev *dev = hw->priv;
254
255 queue += mvif->wmm_idx * MT7615_MAX_WMM_SETS;
256
257 return mt7615_mcu_set_wmm(dev, queue, params);
258 }
259
260 static void mt7615_configure_filter(struct ieee80211_hw *hw,
261 unsigned int changed_flags,
262 unsigned int *total_flags,
263 u64 multicast)
264 {
265 struct mt7615_dev *dev = hw->priv;
266 u32 flags = 0;
267
268 #define MT76_FILTER(_flag, _hw) do { \
269 flags |= *total_flags & FIF_##_flag; \
270 dev->mt76.rxfilter &= ~(_hw); \
271 dev->mt76.rxfilter |= !(flags & FIF_##_flag) * (_hw); \
272 } while (0)
273
274 dev->mt76.rxfilter &= ~(MT_WF_RFCR_DROP_OTHER_BSS |
275 MT_WF_RFCR_DROP_OTHER_BEACON |
276 MT_WF_RFCR_DROP_FRAME_REPORT |
277 MT_WF_RFCR_DROP_PROBEREQ |
278 MT_WF_RFCR_DROP_MCAST_FILTERED |
279 MT_WF_RFCR_DROP_MCAST |
280 MT_WF_RFCR_DROP_BCAST |
281 MT_WF_RFCR_DROP_DUPLICATE |
282 MT_WF_RFCR_DROP_A2_BSSID |
283 MT_WF_RFCR_DROP_UNWANTED_CTL |
284 MT_WF_RFCR_DROP_STBC_MULTI);
285
286 MT76_FILTER(OTHER_BSS, MT_WF_RFCR_DROP_OTHER_TIM |
287 MT_WF_RFCR_DROP_A3_MAC |
288 MT_WF_RFCR_DROP_A3_BSSID);
289
290 MT76_FILTER(FCSFAIL, MT_WF_RFCR_DROP_FCSFAIL);
291
292 MT76_FILTER(CONTROL, MT_WF_RFCR_DROP_CTS |
293 MT_WF_RFCR_DROP_RTS |
294 MT_WF_RFCR_DROP_CTL_RSV |
295 MT_WF_RFCR_DROP_NDPA);
296
297 *total_flags = flags;
298 mt76_wr(dev, MT_WF_RFCR, dev->mt76.rxfilter);
299 }
300
301 static void mt7615_bss_info_changed(struct ieee80211_hw *hw,
302 struct ieee80211_vif *vif,
303 struct ieee80211_bss_conf *info,
304 u32 changed)
305 {
306 struct mt7615_dev *dev = hw->priv;
307
308 mutex_lock(&dev->mt76.mutex);
309
310 if (changed & BSS_CHANGED_ASSOC)
311 mt7615_mcu_set_bss_info(dev, vif, info->assoc);
312
313
314
315
316
317 if (changed & BSS_CHANGED_BEACON_ENABLED) {
318 mt7615_mcu_set_bss_info(dev, vif, info->enable_beacon);
319 mt7615_mcu_wtbl_bmc(dev, vif, info->enable_beacon);
320 mt7615_mcu_set_sta_rec_bmc(dev, vif, info->enable_beacon);
321 mt7615_mcu_set_bcn(dev, vif, info->enable_beacon);
322 }
323
324 mutex_unlock(&dev->mt76.mutex);
325 }
326
327 static void
328 mt7615_channel_switch_beacon(struct ieee80211_hw *hw,
329 struct ieee80211_vif *vif,
330 struct cfg80211_chan_def *chandef)
331 {
332 struct mt7615_dev *dev = hw->priv;
333
334 mutex_lock(&dev->mt76.mutex);
335 mt7615_mcu_set_bcn(dev, vif, true);
336 mutex_unlock(&dev->mt76.mutex);
337 }
338
339 int mt7615_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif,
340 struct ieee80211_sta *sta)
341 {
342 struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76);
343 struct mt7615_sta *msta = (struct mt7615_sta *)sta->drv_priv;
344 struct mt7615_vif *mvif = (struct mt7615_vif *)vif->drv_priv;
345 int idx;
346
347 idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7615_WTBL_STA - 1);
348 if (idx < 0)
349 return -ENOSPC;
350
351 msta->vif = mvif;
352 msta->wcid.sta = 1;
353 msta->wcid.idx = idx;
354
355 mt7615_mcu_add_wtbl(dev, vif, sta);
356 mt7615_mcu_set_sta_rec(dev, vif, sta, 1);
357
358 return 0;
359 }
360
361 void mt7615_sta_assoc(struct mt76_dev *mdev, struct ieee80211_vif *vif,
362 struct ieee80211_sta *sta)
363 {
364 struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76);
365
366 if (sta->ht_cap.ht_supported)
367 mt7615_mcu_set_ht_cap(dev, vif, sta);
368 }
369
370 void mt7615_sta_remove(struct mt76_dev *mdev, struct ieee80211_vif *vif,
371 struct ieee80211_sta *sta)
372 {
373 struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76);
374
375 mt7615_mcu_set_sta_rec(dev, vif, sta, 0);
376 mt7615_mcu_del_wtbl(dev, sta);
377 }
378
379 static void mt7615_sta_rate_tbl_update(struct ieee80211_hw *hw,
380 struct ieee80211_vif *vif,
381 struct ieee80211_sta *sta)
382 {
383 struct mt7615_dev *dev = hw->priv;
384 struct mt7615_sta *msta = (struct mt7615_sta *)sta->drv_priv;
385 struct ieee80211_sta_rates *sta_rates = rcu_dereference(sta->rates);
386 int i;
387
388 spin_lock_bh(&dev->mt76.lock);
389 for (i = 0; i < ARRAY_SIZE(msta->rates); i++) {
390 msta->rates[i].idx = sta_rates->rate[i].idx;
391 msta->rates[i].count = sta_rates->rate[i].count;
392 msta->rates[i].flags = sta_rates->rate[i].flags;
393
394 if (msta->rates[i].idx < 0 || !msta->rates[i].count)
395 break;
396 }
397 msta->n_rates = i;
398 mt7615_mac_set_rates(dev, msta, NULL, msta->rates);
399 msta->rate_probe = false;
400 spin_unlock_bh(&dev->mt76.lock);
401 }
402
403 static void mt7615_tx(struct ieee80211_hw *hw,
404 struct ieee80211_tx_control *control,
405 struct sk_buff *skb)
406 {
407 struct mt7615_dev *dev = hw->priv;
408 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
409 struct ieee80211_vif *vif = info->control.vif;
410 struct mt76_wcid *wcid = &dev->mt76.global_wcid;
411
412 if (control->sta) {
413 struct mt7615_sta *sta;
414
415 sta = (struct mt7615_sta *)control->sta->drv_priv;
416 wcid = &sta->wcid;
417 }
418
419 if (vif && !control->sta) {
420 struct mt7615_vif *mvif;
421
422 mvif = (struct mt7615_vif *)vif->drv_priv;
423 wcid = &mvif->sta.wcid;
424 }
425
426 mt76_tx(&dev->mt76, control->sta, wcid, skb);
427 }
428
429 static int mt7615_set_rts_threshold(struct ieee80211_hw *hw, u32 val)
430 {
431 struct mt7615_dev *dev = hw->priv;
432
433 mutex_lock(&dev->mt76.mutex);
434 mt7615_mcu_set_rts_thresh(dev, val);
435 mutex_unlock(&dev->mt76.mutex);
436
437 return 0;
438 }
439
440 static int
441 mt7615_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
442 struct ieee80211_ampdu_params *params)
443 {
444 enum ieee80211_ampdu_mlme_action action = params->action;
445 struct mt7615_dev *dev = hw->priv;
446 struct ieee80211_sta *sta = params->sta;
447 struct ieee80211_txq *txq = sta->txq[params->tid];
448 struct mt7615_sta *msta = (struct mt7615_sta *)sta->drv_priv;
449 u16 tid = params->tid;
450 u16 ssn = params->ssn;
451 struct mt76_txq *mtxq;
452
453 if (!txq)
454 return -EINVAL;
455
456 mtxq = (struct mt76_txq *)txq->drv_priv;
457
458 switch (action) {
459 case IEEE80211_AMPDU_RX_START:
460 mt76_rx_aggr_start(&dev->mt76, &msta->wcid, tid, ssn,
461 params->buf_size);
462 mt7615_mcu_set_rx_ba(dev, params, 1);
463 break;
464 case IEEE80211_AMPDU_RX_STOP:
465 mt76_rx_aggr_stop(&dev->mt76, &msta->wcid, tid);
466 mt7615_mcu_set_rx_ba(dev, params, 0);
467 break;
468 case IEEE80211_AMPDU_TX_OPERATIONAL:
469 mtxq->aggr = true;
470 mtxq->send_bar = false;
471 mt7615_mcu_set_tx_ba(dev, params, 1);
472 break;
473 case IEEE80211_AMPDU_TX_STOP_FLUSH:
474 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
475 mtxq->aggr = false;
476 mt7615_mcu_set_tx_ba(dev, params, 0);
477 break;
478 case IEEE80211_AMPDU_TX_START:
479 mtxq->agg_ssn = IEEE80211_SN_TO_SEQ(ssn);
480 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
481 break;
482 case IEEE80211_AMPDU_TX_STOP_CONT:
483 mtxq->aggr = false;
484 mt7615_mcu_set_tx_ba(dev, params, 0);
485 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
486 break;
487 }
488
489 return 0;
490 }
491
492 const struct ieee80211_ops mt7615_ops = {
493 .tx = mt7615_tx,
494 .start = mt7615_start,
495 .stop = mt7615_stop,
496 .add_interface = mt7615_add_interface,
497 .remove_interface = mt7615_remove_interface,
498 .config = mt7615_config,
499 .conf_tx = mt7615_conf_tx,
500 .configure_filter = mt7615_configure_filter,
501 .bss_info_changed = mt7615_bss_info_changed,
502 .sta_state = mt76_sta_state,
503 .set_key = mt7615_set_key,
504 .ampdu_action = mt7615_ampdu_action,
505 .set_rts_threshold = mt7615_set_rts_threshold,
506 .wake_tx_queue = mt76_wake_tx_queue,
507 .sta_rate_tbl_update = mt7615_sta_rate_tbl_update,
508 .sw_scan_start = mt76_sw_scan,
509 .sw_scan_complete = mt76_sw_scan_complete,
510 .release_buffered_frames = mt76_release_buffered_frames,
511 .get_txpower = mt76_get_txpower,
512 .channel_switch_beacon = mt7615_channel_switch_beacon,
513 .get_survey = mt76_get_survey,
514 };