1 // SPDX-License-Identifier: ISC
2
3 #include <linux/etherdevice.h>
4 #include <linux/platform_device.h>
5 #include <linux/pci.h>
6 #include <linux/module.h>
7 #include "mt7603.h"
8 #include "mac.h"
9 #include "eeprom.h"
10
11 static int
mt7603_start(struct ieee80211_hw * hw)12 mt7603_start(struct ieee80211_hw *hw)
13 {
14 struct mt7603_dev *dev = hw->priv;
15
16 mt7603_mac_reset_counters(dev);
17 mt7603_mac_start(dev);
18 dev->mphy.survey_time = ktime_get_boottime();
19 set_bit(MT76_STATE_RUNNING, &dev->mphy.state);
20 mt7603_mac_work(&dev->mt76.mac_work.work);
21
22 return 0;
23 }
24
25 static void
mt7603_stop(struct ieee80211_hw * hw)26 mt7603_stop(struct ieee80211_hw *hw)
27 {
28 struct mt7603_dev *dev = hw->priv;
29
30 clear_bit(MT76_STATE_RUNNING, &dev->mphy.state);
31 cancel_delayed_work_sync(&dev->mt76.mac_work);
32 mt7603_mac_stop(dev);
33 }
34
35 static int
mt7603_add_interface(struct ieee80211_hw * hw,struct ieee80211_vif * vif)36 mt7603_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
37 {
38 struct mt7603_vif *mvif = (struct mt7603_vif *)vif->drv_priv;
39 struct mt7603_dev *dev = hw->priv;
40 struct mt76_txq *mtxq;
41 u8 bc_addr[ETH_ALEN];
42 int idx;
43 int ret = 0;
44
45 mutex_lock(&dev->mt76.mutex);
46
47 mvif->idx = ffs(~dev->mphy.vif_mask) - 1;
48 if (mvif->idx >= MT7603_MAX_INTERFACES) {
49 ret = -ENOSPC;
50 goto out;
51 }
52
53 mt76_wr(dev, MT_MAC_ADDR0(mvif->idx),
54 get_unaligned_le32(vif->addr));
55 mt76_wr(dev, MT_MAC_ADDR1(mvif->idx),
56 (get_unaligned_le16(vif->addr + 4) |
57 MT_MAC_ADDR1_VALID));
58
59 if (vif->type == NL80211_IFTYPE_AP) {
60 mt76_wr(dev, MT_BSSID0(mvif->idx),
61 get_unaligned_le32(vif->addr));
62 mt76_wr(dev, MT_BSSID1(mvif->idx),
63 (get_unaligned_le16(vif->addr + 4) |
64 MT_BSSID1_VALID));
65 }
66
67 idx = MT7603_WTBL_RESERVED - 1 - mvif->idx;
68 dev->mphy.vif_mask |= BIT(mvif->idx);
69 INIT_LIST_HEAD(&mvif->sta.poll_list);
70 mvif->sta.wcid.idx = idx;
71 mvif->sta.wcid.hw_key_idx = -1;
72
73 eth_broadcast_addr(bc_addr);
74 mt7603_wtbl_init(dev, idx, mvif->idx, bc_addr);
75
76 mtxq = (struct mt76_txq *)vif->txq->drv_priv;
77 mtxq->wcid = &mvif->sta.wcid;
78 rcu_assign_pointer(dev->mt76.wcid[idx], &mvif->sta.wcid);
79
80 out:
81 mutex_unlock(&dev->mt76.mutex);
82
83 return ret;
84 }
85
86 static void
mt7603_remove_interface(struct ieee80211_hw * hw,struct ieee80211_vif * vif)87 mt7603_remove_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
88 {
89 struct mt7603_vif *mvif = (struct mt7603_vif *)vif->drv_priv;
90 struct mt7603_sta *msta = &mvif->sta;
91 struct mt7603_dev *dev = hw->priv;
92 int idx = msta->wcid.idx;
93
94 mt76_wr(dev, MT_MAC_ADDR0(mvif->idx), 0);
95 mt76_wr(dev, MT_MAC_ADDR1(mvif->idx), 0);
96 mt76_wr(dev, MT_BSSID0(mvif->idx), 0);
97 mt76_wr(dev, MT_BSSID1(mvif->idx), 0);
98 mt7603_beacon_set_timer(dev, mvif->idx, 0);
99
100 rcu_assign_pointer(dev->mt76.wcid[idx], NULL);
101
102 spin_lock_bh(&dev->sta_poll_lock);
103 if (!list_empty(&msta->poll_list))
104 list_del_init(&msta->poll_list);
105 spin_unlock_bh(&dev->sta_poll_lock);
106
107 mutex_lock(&dev->mt76.mutex);
108 dev->mphy.vif_mask &= ~BIT(mvif->idx);
109 mutex_unlock(&dev->mt76.mutex);
110 }
111
mt7603_init_edcca(struct mt7603_dev * dev)112 void mt7603_init_edcca(struct mt7603_dev *dev)
113 {
114 /* Set lower signal level to -65dBm */
115 mt76_rmw_field(dev, MT_RXTD(8), MT_RXTD_8_LOWER_SIGNAL, 0x23);
116
117 /* clear previous energy detect monitor results */
118 mt76_rr(dev, MT_MIB_STAT_ED);
119
120 if (dev->ed_monitor)
121 mt76_set(dev, MT_MIB_CTL, MT_MIB_CTL_ED_TIME);
122 else
123 mt76_clear(dev, MT_MIB_CTL, MT_MIB_CTL_ED_TIME);
124
125 dev->ed_strict_mode = 0xff;
126 dev->ed_strong_signal = 0;
127 dev->ed_time = ktime_get_boottime();
128
129 mt7603_edcca_set_strict(dev, false);
130 }
131
132 static int
mt7603_set_channel(struct mt7603_dev * dev,struct cfg80211_chan_def * def)133 mt7603_set_channel(struct mt7603_dev *dev, struct cfg80211_chan_def *def)
134 {
135 u8 *rssi_data = (u8 *)dev->mt76.eeprom.data;
136 int idx, ret;
137 u8 bw = MT_BW_20;
138 bool failed = false;
139
140 cancel_delayed_work_sync(&dev->mt76.mac_work);
141 tasklet_disable(&dev->mt76.pre_tbtt_tasklet);
142
143 mutex_lock(&dev->mt76.mutex);
144 set_bit(MT76_RESET, &dev->mphy.state);
145
146 mt7603_beacon_set_timer(dev, -1, 0);
147 mt76_set_channel(&dev->mphy);
148 mt7603_mac_stop(dev);
149
150 if (def->width == NL80211_CHAN_WIDTH_40)
151 bw = MT_BW_40;
152
153 dev->mphy.chandef = *def;
154 mt76_rmw_field(dev, MT_AGG_BWCR, MT_AGG_BWCR_BW, bw);
155 ret = mt7603_mcu_set_channel(dev);
156 if (ret) {
157 failed = true;
158 goto out;
159 }
160
161 if (def->chan->band == NL80211_BAND_5GHZ) {
162 idx = 1;
163 rssi_data += MT_EE_RSSI_OFFSET_5G;
164 } else {
165 idx = 0;
166 rssi_data += MT_EE_RSSI_OFFSET_2G;
167 }
168
169 memcpy(dev->rssi_offset, rssi_data, sizeof(dev->rssi_offset));
170
171 idx |= (def->chan -
172 mt76_hw(dev)->wiphy->bands[def->chan->band]->channels) << 1;
173 mt76_wr(dev, MT_WF_RMAC_CH_FREQ, idx);
174 mt7603_mac_set_timing(dev);
175 mt7603_mac_start(dev);
176
177 clear_bit(MT76_RESET, &dev->mphy.state);
178
179 mt76_txq_schedule_all(&dev->mphy);
180
181 ieee80211_queue_delayed_work(mt76_hw(dev), &dev->mt76.mac_work,
182 msecs_to_jiffies(MT7603_WATCHDOG_TIME));
183
184 /* reset channel stats */
185 mt76_clear(dev, MT_MIB_CTL, MT_MIB_CTL_READ_CLR_DIS);
186 mt76_set(dev, MT_MIB_CTL,
187 MT_MIB_CTL_CCA_NAV_TX | MT_MIB_CTL_PSCCA_TIME);
188 mt76_rr(dev, MT_MIB_STAT_CCA);
189 mt7603_cca_stats_reset(dev);
190
191 dev->mphy.survey_time = ktime_get_boottime();
192
193 mt7603_init_edcca(dev);
194
195 out:
196 if (!(mt76_hw(dev)->conf.flags & IEEE80211_CONF_OFFCHANNEL))
197 mt7603_beacon_set_timer(dev, -1, dev->mt76.beacon_int);
198 mutex_unlock(&dev->mt76.mutex);
199
200 tasklet_enable(&dev->mt76.pre_tbtt_tasklet);
201
202 if (failed)
203 mt7603_mac_work(&dev->mt76.mac_work.work);
204
205 return ret;
206 }
207
208 static int
mt7603_config(struct ieee80211_hw * hw,u32 changed)209 mt7603_config(struct ieee80211_hw *hw, u32 changed)
210 {
211 struct mt7603_dev *dev = hw->priv;
212 int ret = 0;
213
214 if (changed & (IEEE80211_CONF_CHANGE_CHANNEL |
215 IEEE80211_CONF_CHANGE_POWER)) {
216 ieee80211_stop_queues(hw);
217 ret = mt7603_set_channel(dev, &hw->conf.chandef);
218 ieee80211_wake_queues(hw);
219 }
220
221 if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
222 mutex_lock(&dev->mt76.mutex);
223
224 if (!(hw->conf.flags & IEEE80211_CONF_MONITOR))
225 dev->rxfilter |= MT_WF_RFCR_DROP_OTHER_UC;
226 else
227 dev->rxfilter &= ~MT_WF_RFCR_DROP_OTHER_UC;
228
229 mt76_wr(dev, MT_WF_RFCR, dev->rxfilter);
230
231 mutex_unlock(&dev->mt76.mutex);
232 }
233
234 return ret;
235 }
236
237 static void
mt7603_configure_filter(struct ieee80211_hw * hw,unsigned int changed_flags,unsigned int * total_flags,u64 multicast)238 mt7603_configure_filter(struct ieee80211_hw *hw, unsigned int changed_flags,
239 unsigned int *total_flags, u64 multicast)
240 {
241 struct mt7603_dev *dev = hw->priv;
242 u32 flags = 0;
243
244 #define MT76_FILTER(_flag, _hw) do { \
245 flags |= *total_flags & FIF_##_flag; \
246 dev->rxfilter &= ~(_hw); \
247 dev->rxfilter |= !(flags & FIF_##_flag) * (_hw); \
248 } while (0)
249
250 dev->rxfilter &= ~(MT_WF_RFCR_DROP_OTHER_BSS |
251 MT_WF_RFCR_DROP_OTHER_BEACON |
252 MT_WF_RFCR_DROP_FRAME_REPORT |
253 MT_WF_RFCR_DROP_PROBEREQ |
254 MT_WF_RFCR_DROP_MCAST_FILTERED |
255 MT_WF_RFCR_DROP_MCAST |
256 MT_WF_RFCR_DROP_BCAST |
257 MT_WF_RFCR_DROP_DUPLICATE |
258 MT_WF_RFCR_DROP_A2_BSSID |
259 MT_WF_RFCR_DROP_UNWANTED_CTL |
260 MT_WF_RFCR_DROP_STBC_MULTI);
261
262 MT76_FILTER(OTHER_BSS, MT_WF_RFCR_DROP_OTHER_TIM |
263 MT_WF_RFCR_DROP_A3_MAC |
264 MT_WF_RFCR_DROP_A3_BSSID);
265
266 MT76_FILTER(FCSFAIL, MT_WF_RFCR_DROP_FCSFAIL);
267
268 MT76_FILTER(CONTROL, MT_WF_RFCR_DROP_CTS |
269 MT_WF_RFCR_DROP_RTS |
270 MT_WF_RFCR_DROP_CTL_RSV |
271 MT_WF_RFCR_DROP_NDPA);
272
273 *total_flags = flags;
274 mt76_wr(dev, MT_WF_RFCR, dev->rxfilter);
275 }
276
277 static void
mt7603_bss_info_changed(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * info,u32 changed)278 mt7603_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
279 struct ieee80211_bss_conf *info, u32 changed)
280 {
281 struct mt7603_dev *dev = hw->priv;
282 struct mt7603_vif *mvif = (struct mt7603_vif *)vif->drv_priv;
283
284 mutex_lock(&dev->mt76.mutex);
285
286 if (changed & (BSS_CHANGED_ASSOC | BSS_CHANGED_BSSID)) {
287 if (info->assoc || info->ibss_joined) {
288 mt76_wr(dev, MT_BSSID0(mvif->idx),
289 get_unaligned_le32(info->bssid));
290 mt76_wr(dev, MT_BSSID1(mvif->idx),
291 (get_unaligned_le16(info->bssid + 4) |
292 MT_BSSID1_VALID));
293 } else {
294 mt76_wr(dev, MT_BSSID0(mvif->idx), 0);
295 mt76_wr(dev, MT_BSSID1(mvif->idx), 0);
296 }
297 }
298
299 if (changed & BSS_CHANGED_ERP_SLOT) {
300 int slottime = info->use_short_slot ? 9 : 20;
301
302 if (slottime != dev->slottime) {
303 dev->slottime = slottime;
304 mt7603_mac_set_timing(dev);
305 }
306 }
307
308 if (changed & (BSS_CHANGED_BEACON_ENABLED | BSS_CHANGED_BEACON_INT)) {
309 int beacon_int = !!info->enable_beacon * info->beacon_int;
310
311 tasklet_disable(&dev->mt76.pre_tbtt_tasklet);
312 mt7603_beacon_set_timer(dev, mvif->idx, beacon_int);
313 tasklet_enable(&dev->mt76.pre_tbtt_tasklet);
314 }
315
316 mutex_unlock(&dev->mt76.mutex);
317 }
318
319 int
mt7603_sta_add(struct mt76_dev * mdev,struct ieee80211_vif * vif,struct ieee80211_sta * sta)320 mt7603_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif,
321 struct ieee80211_sta *sta)
322 {
323 struct mt7603_dev *dev = container_of(mdev, struct mt7603_dev, mt76);
324 struct mt7603_sta *msta = (struct mt7603_sta *)sta->drv_priv;
325 struct mt7603_vif *mvif = (struct mt7603_vif *)vif->drv_priv;
326 int idx;
327 int ret = 0;
328
329 idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7603_WTBL_STA - 1);
330 if (idx < 0)
331 return -ENOSPC;
332
333 INIT_LIST_HEAD(&msta->poll_list);
334 __skb_queue_head_init(&msta->psq);
335 msta->ps = ~0;
336 msta->smps = ~0;
337 msta->wcid.sta = 1;
338 msta->wcid.idx = idx;
339 mt7603_wtbl_init(dev, idx, mvif->idx, sta->addr);
340 mt7603_wtbl_set_ps(dev, msta, false);
341
342 if (vif->type == NL80211_IFTYPE_AP)
343 set_bit(MT_WCID_FLAG_CHECK_PS, &msta->wcid.flags);
344
345 return ret;
346 }
347
348 void
mt7603_sta_assoc(struct mt76_dev * mdev,struct ieee80211_vif * vif,struct ieee80211_sta * sta)349 mt7603_sta_assoc(struct mt76_dev *mdev, struct ieee80211_vif *vif,
350 struct ieee80211_sta *sta)
351 {
352 struct mt7603_dev *dev = container_of(mdev, struct mt7603_dev, mt76);
353
354 mt7603_wtbl_update_cap(dev, sta);
355 }
356
357 void
mt7603_sta_remove(struct mt76_dev * mdev,struct ieee80211_vif * vif,struct ieee80211_sta * sta)358 mt7603_sta_remove(struct mt76_dev *mdev, struct ieee80211_vif *vif,
359 struct ieee80211_sta *sta)
360 {
361 struct mt7603_dev *dev = container_of(mdev, struct mt7603_dev, mt76);
362 struct mt7603_sta *msta = (struct mt7603_sta *)sta->drv_priv;
363 struct mt76_wcid *wcid = (struct mt76_wcid *)sta->drv_priv;
364
365 spin_lock_bh(&dev->ps_lock);
366 __skb_queue_purge(&msta->psq);
367 mt7603_filter_tx(dev, wcid->idx, true);
368 spin_unlock_bh(&dev->ps_lock);
369
370 spin_lock_bh(&dev->sta_poll_lock);
371 if (!list_empty(&msta->poll_list))
372 list_del_init(&msta->poll_list);
373 spin_unlock_bh(&dev->sta_poll_lock);
374
375 mt7603_wtbl_clear(dev, wcid->idx);
376 }
377
378 static void
mt7603_ps_tx_list(struct mt7603_dev * dev,struct sk_buff_head * list)379 mt7603_ps_tx_list(struct mt7603_dev *dev, struct sk_buff_head *list)
380 {
381 struct sk_buff *skb;
382
383 while ((skb = __skb_dequeue(list)) != NULL)
384 mt76_tx_queue_skb_raw(dev, skb_get_queue_mapping(skb),
385 skb, 0);
386 }
387
388 void
mt7603_sta_ps(struct mt76_dev * mdev,struct ieee80211_sta * sta,bool ps)389 mt7603_sta_ps(struct mt76_dev *mdev, struct ieee80211_sta *sta, bool ps)
390 {
391 struct mt7603_dev *dev = container_of(mdev, struct mt7603_dev, mt76);
392 struct mt7603_sta *msta = (struct mt7603_sta *)sta->drv_priv;
393 struct sk_buff_head list;
394
395 mt76_stop_tx_queues(&dev->mt76, sta, true);
396 mt7603_wtbl_set_ps(dev, msta, ps);
397 if (ps)
398 return;
399
400 __skb_queue_head_init(&list);
401
402 spin_lock_bh(&dev->ps_lock);
403 skb_queue_splice_tail_init(&msta->psq, &list);
404 spin_unlock_bh(&dev->ps_lock);
405
406 mt7603_ps_tx_list(dev, &list);
407 }
408
409 static void
mt7603_ps_set_more_data(struct sk_buff * skb)410 mt7603_ps_set_more_data(struct sk_buff *skb)
411 {
412 struct ieee80211_hdr *hdr;
413
414 hdr = (struct ieee80211_hdr *)&skb->data[MT_TXD_SIZE];
415 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_MOREDATA);
416 }
417
418 static void
mt7603_release_buffered_frames(struct ieee80211_hw * hw,struct ieee80211_sta * sta,u16 tids,int nframes,enum ieee80211_frame_release_type reason,bool more_data)419 mt7603_release_buffered_frames(struct ieee80211_hw *hw,
420 struct ieee80211_sta *sta,
421 u16 tids, int nframes,
422 enum ieee80211_frame_release_type reason,
423 bool more_data)
424 {
425 struct mt7603_dev *dev = hw->priv;
426 struct mt7603_sta *msta = (struct mt7603_sta *)sta->drv_priv;
427 struct sk_buff_head list;
428 struct sk_buff *skb, *tmp;
429
430 __skb_queue_head_init(&list);
431
432 mt7603_wtbl_set_ps(dev, msta, false);
433
434 spin_lock_bh(&dev->ps_lock);
435 skb_queue_walk_safe(&msta->psq, skb, tmp) {
436 if (!nframes)
437 break;
438
439 if (!(tids & BIT(skb->priority)))
440 continue;
441
442 skb_set_queue_mapping(skb, MT_TXQ_PSD);
443 __skb_unlink(skb, &msta->psq);
444 mt7603_ps_set_more_data(skb);
445 __skb_queue_tail(&list, skb);
446 nframes--;
447 }
448 spin_unlock_bh(&dev->ps_lock);
449
450 if (!skb_queue_empty(&list))
451 ieee80211_sta_eosp(sta);
452
453 mt7603_ps_tx_list(dev, &list);
454
455 if (nframes)
456 mt76_release_buffered_frames(hw, sta, tids, nframes, reason,
457 more_data);
458 }
459
460 static int
mt7603_set_key(struct ieee80211_hw * hw,enum set_key_cmd cmd,struct ieee80211_vif * vif,struct ieee80211_sta * sta,struct ieee80211_key_conf * key)461 mt7603_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
462 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
463 struct ieee80211_key_conf *key)
464 {
465 struct mt7603_dev *dev = hw->priv;
466 struct mt7603_vif *mvif = (struct mt7603_vif *)vif->drv_priv;
467 struct mt7603_sta *msta = sta ? (struct mt7603_sta *)sta->drv_priv :
468 &mvif->sta;
469 struct mt76_wcid *wcid = &msta->wcid;
470 int idx = key->keyidx;
471
472 /* fall back to sw encryption for unsupported ciphers */
473 switch (key->cipher) {
474 case WLAN_CIPHER_SUITE_TKIP:
475 case WLAN_CIPHER_SUITE_CCMP:
476 break;
477 default:
478 return -EOPNOTSUPP;
479 }
480
481 /*
482 * The hardware does not support per-STA RX GTK, fall back
483 * to software mode for these.
484 */
485 if ((vif->type == NL80211_IFTYPE_ADHOC ||
486 vif->type == NL80211_IFTYPE_MESH_POINT) &&
487 (key->cipher == WLAN_CIPHER_SUITE_TKIP ||
488 key->cipher == WLAN_CIPHER_SUITE_CCMP) &&
489 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE))
490 return -EOPNOTSUPP;
491
492 if (cmd == SET_KEY) {
493 key->hw_key_idx = wcid->idx;
494 wcid->hw_key_idx = idx;
495 } else {
496 if (idx == wcid->hw_key_idx)
497 wcid->hw_key_idx = -1;
498
499 key = NULL;
500 }
501 mt76_wcid_key_setup(&dev->mt76, wcid, key);
502
503 return mt7603_wtbl_set_key(dev, wcid->idx, key);
504 }
505
506 static int
mt7603_conf_tx(struct ieee80211_hw * hw,struct ieee80211_vif * vif,u16 queue,const struct ieee80211_tx_queue_params * params)507 mt7603_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif, u16 queue,
508 const struct ieee80211_tx_queue_params *params)
509 {
510 struct mt7603_dev *dev = hw->priv;
511 u16 cw_min = (1 << 5) - 1;
512 u16 cw_max = (1 << 10) - 1;
513 u32 val;
514
515 queue = dev->mt76.q_tx[queue]->hw_idx;
516
517 if (params->cw_min)
518 cw_min = params->cw_min;
519 if (params->cw_max)
520 cw_max = params->cw_max;
521
522 mutex_lock(&dev->mt76.mutex);
523 mt7603_mac_stop(dev);
524
525 val = mt76_rr(dev, MT_WMM_TXOP(queue));
526 val &= ~(MT_WMM_TXOP_MASK << MT_WMM_TXOP_SHIFT(queue));
527 val |= params->txop << MT_WMM_TXOP_SHIFT(queue);
528 mt76_wr(dev, MT_WMM_TXOP(queue), val);
529
530 val = mt76_rr(dev, MT_WMM_AIFSN);
531 val &= ~(MT_WMM_AIFSN_MASK << MT_WMM_AIFSN_SHIFT(queue));
532 val |= params->aifs << MT_WMM_AIFSN_SHIFT(queue);
533 mt76_wr(dev, MT_WMM_AIFSN, val);
534
535 val = mt76_rr(dev, MT_WMM_CWMIN);
536 val &= ~(MT_WMM_CWMIN_MASK << MT_WMM_CWMIN_SHIFT(queue));
537 val |= cw_min << MT_WMM_CWMIN_SHIFT(queue);
538 mt76_wr(dev, MT_WMM_CWMIN, val);
539
540 val = mt76_rr(dev, MT_WMM_CWMAX(queue));
541 val &= ~(MT_WMM_CWMAX_MASK << MT_WMM_CWMAX_SHIFT(queue));
542 val |= cw_max << MT_WMM_CWMAX_SHIFT(queue);
543 mt76_wr(dev, MT_WMM_CWMAX(queue), val);
544
545 mt7603_mac_start(dev);
546 mutex_unlock(&dev->mt76.mutex);
547
548 return 0;
549 }
550
551 static void
mt7603_flush(struct ieee80211_hw * hw,struct ieee80211_vif * vif,u32 queues,bool drop)552 mt7603_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
553 u32 queues, bool drop)
554 {
555 }
556
557 static int
mt7603_ampdu_action(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_ampdu_params * params)558 mt7603_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
559 struct ieee80211_ampdu_params *params)
560 {
561 enum ieee80211_ampdu_mlme_action action = params->action;
562 struct mt7603_dev *dev = hw->priv;
563 struct ieee80211_sta *sta = params->sta;
564 struct ieee80211_txq *txq = sta->txq[params->tid];
565 struct mt7603_sta *msta = (struct mt7603_sta *)sta->drv_priv;
566 u16 tid = params->tid;
567 u16 ssn = params->ssn;
568 u8 ba_size = params->buf_size;
569 struct mt76_txq *mtxq;
570 int ret = 0;
571
572 if (!txq)
573 return -EINVAL;
574
575 mtxq = (struct mt76_txq *)txq->drv_priv;
576
577 mutex_lock(&dev->mt76.mutex);
578 switch (action) {
579 case IEEE80211_AMPDU_RX_START:
580 mt76_rx_aggr_start(&dev->mt76, &msta->wcid, tid, ssn,
581 params->buf_size);
582 mt7603_mac_rx_ba_reset(dev, sta->addr, tid);
583 break;
584 case IEEE80211_AMPDU_RX_STOP:
585 mt76_rx_aggr_stop(&dev->mt76, &msta->wcid, tid);
586 break;
587 case IEEE80211_AMPDU_TX_OPERATIONAL:
588 mtxq->aggr = true;
589 mtxq->send_bar = false;
590 mt7603_mac_tx_ba_reset(dev, msta->wcid.idx, tid, ba_size);
591 break;
592 case IEEE80211_AMPDU_TX_STOP_FLUSH:
593 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
594 mtxq->aggr = false;
595 mt7603_mac_tx_ba_reset(dev, msta->wcid.idx, tid, -1);
596 break;
597 case IEEE80211_AMPDU_TX_START:
598 mtxq->agg_ssn = IEEE80211_SN_TO_SEQ(ssn);
599 ret = IEEE80211_AMPDU_TX_START_IMMEDIATE;
600 break;
601 case IEEE80211_AMPDU_TX_STOP_CONT:
602 mtxq->aggr = false;
603 mt7603_mac_tx_ba_reset(dev, msta->wcid.idx, tid, -1);
604 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
605 break;
606 }
607 mutex_unlock(&dev->mt76.mutex);
608
609 return ret;
610 }
611
612 static void
mt7603_sta_rate_tbl_update(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta)613 mt7603_sta_rate_tbl_update(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
614 struct ieee80211_sta *sta)
615 {
616 struct mt7603_dev *dev = hw->priv;
617 struct mt7603_sta *msta = (struct mt7603_sta *)sta->drv_priv;
618 struct ieee80211_sta_rates *sta_rates = rcu_dereference(sta->rates);
619 int i;
620
621 if (!sta_rates)
622 return;
623
624 spin_lock_bh(&dev->mt76.lock);
625 for (i = 0; i < ARRAY_SIZE(msta->rates); i++) {
626 msta->rates[i].idx = sta_rates->rate[i].idx;
627 msta->rates[i].count = sta_rates->rate[i].count;
628 msta->rates[i].flags = sta_rates->rate[i].flags;
629
630 if (msta->rates[i].idx < 0 || !msta->rates[i].count)
631 break;
632 }
633 msta->n_rates = i;
634 mt7603_wtbl_set_rates(dev, msta, NULL, msta->rates);
635 msta->rate_probe = false;
636 mt7603_wtbl_set_smps(dev, msta,
637 sta->smps_mode == IEEE80211_SMPS_DYNAMIC);
638 spin_unlock_bh(&dev->mt76.lock);
639 }
640
641 static void
mt7603_set_coverage_class(struct ieee80211_hw * hw,s16 coverage_class)642 mt7603_set_coverage_class(struct ieee80211_hw *hw, s16 coverage_class)
643 {
644 struct mt7603_dev *dev = hw->priv;
645
646 mutex_lock(&dev->mt76.mutex);
647 dev->coverage_class = max_t(s16, coverage_class, 0);
648 mt7603_mac_set_timing(dev);
649 mutex_unlock(&dev->mt76.mutex);
650 }
651
mt7603_tx(struct ieee80211_hw * hw,struct ieee80211_tx_control * control,struct sk_buff * skb)652 static void mt7603_tx(struct ieee80211_hw *hw,
653 struct ieee80211_tx_control *control,
654 struct sk_buff *skb)
655 {
656 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
657 struct ieee80211_vif *vif = info->control.vif;
658 struct mt7603_dev *dev = hw->priv;
659 struct mt76_wcid *wcid = &dev->global_sta.wcid;
660
661 if (control->sta) {
662 struct mt7603_sta *msta;
663
664 msta = (struct mt7603_sta *)control->sta->drv_priv;
665 wcid = &msta->wcid;
666 } else if (vif) {
667 struct mt7603_vif *mvif;
668
669 mvif = (struct mt7603_vif *)vif->drv_priv;
670 wcid = &mvif->sta.wcid;
671 }
672
673 mt76_tx(&dev->mphy, control->sta, wcid, skb);
674 }
675
676 const struct ieee80211_ops mt7603_ops = {
677 .tx = mt7603_tx,
678 .start = mt7603_start,
679 .stop = mt7603_stop,
680 .add_interface = mt7603_add_interface,
681 .remove_interface = mt7603_remove_interface,
682 .config = mt7603_config,
683 .configure_filter = mt7603_configure_filter,
684 .bss_info_changed = mt7603_bss_info_changed,
685 .sta_state = mt76_sta_state,
686 .sta_pre_rcu_remove = mt76_sta_pre_rcu_remove,
687 .set_key = mt7603_set_key,
688 .conf_tx = mt7603_conf_tx,
689 .sw_scan_start = mt76_sw_scan,
690 .sw_scan_complete = mt76_sw_scan_complete,
691 .flush = mt7603_flush,
692 .ampdu_action = mt7603_ampdu_action,
693 .get_txpower = mt76_get_txpower,
694 .wake_tx_queue = mt76_wake_tx_queue,
695 .sta_rate_tbl_update = mt7603_sta_rate_tbl_update,
696 .release_buffered_frames = mt7603_release_buffered_frames,
697 .set_coverage_class = mt7603_set_coverage_class,
698 .set_tim = mt76_set_tim,
699 .get_survey = mt76_get_survey,
700 .get_antenna = mt76_get_antenna,
701 };
702
703 MODULE_LICENSE("Dual BSD/GPL");
704
mt7603_init(void)705 static int __init mt7603_init(void)
706 {
707 int ret;
708
709 ret = platform_driver_register(&mt76_wmac_driver);
710 if (ret)
711 return ret;
712
713 #ifdef CONFIG_PCI
714 ret = pci_register_driver(&mt7603_pci_driver);
715 if (ret)
716 platform_driver_unregister(&mt76_wmac_driver);
717 #endif
718 return ret;
719 }
720
mt7603_exit(void)721 static void __exit mt7603_exit(void)
722 {
723 #ifdef CONFIG_PCI
724 pci_unregister_driver(&mt7603_pci_driver);
725 #endif
726 platform_driver_unregister(&mt76_wmac_driver);
727 }
728
729 module_init(mt7603_init);
730 module_exit(mt7603_exit);
731