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->mphy.mac_work.work);
21
22 return 0;
23 }
24
25 static void
mt7603_stop(struct ieee80211_hw * hw,bool suspend)26 mt7603_stop(struct ieee80211_hw *hw, bool suspend)
27 {
28 struct mt7603_dev *dev = hw->priv;
29
30 clear_bit(MT76_STATE_RUNNING, &dev->mphy.state);
31 cancel_delayed_work_sync(&dev->mphy.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 = __ffs64(~dev->mt76.vif_mask);
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->mt76.vif_mask |= BIT_ULL(mvif->idx);
69 INIT_LIST_HEAD(&mvif->sta.wcid.poll_list);
70 mvif->sta.wcid.idx = idx;
71 mvif->sta.wcid.hw_key_idx = -1;
72 mvif->sta.vif = mvif;
73 mt76_wcid_init(&mvif->sta.wcid);
74
75 eth_broadcast_addr(bc_addr);
76 mt7603_wtbl_init(dev, idx, mvif->idx, bc_addr);
77
78 mtxq = (struct mt76_txq *)vif->txq->drv_priv;
79 mtxq->wcid = idx;
80 rcu_assign_pointer(dev->mt76.wcid[idx], &mvif->sta.wcid);
81
82 out:
83 mutex_unlock(&dev->mt76.mutex);
84
85 return ret;
86 }
87
88 static void
mt7603_remove_interface(struct ieee80211_hw * hw,struct ieee80211_vif * vif)89 mt7603_remove_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
90 {
91 struct mt7603_vif *mvif = (struct mt7603_vif *)vif->drv_priv;
92 struct mt7603_sta *msta = &mvif->sta;
93 struct mt7603_dev *dev = hw->priv;
94 int idx = msta->wcid.idx;
95
96 mt76_wr(dev, MT_MAC_ADDR0(mvif->idx), 0);
97 mt76_wr(dev, MT_MAC_ADDR1(mvif->idx), 0);
98 mt76_wr(dev, MT_BSSID0(mvif->idx), 0);
99 mt76_wr(dev, MT_BSSID1(mvif->idx), 0);
100 mt7603_beacon_set_timer(dev, mvif->idx, 0);
101
102 rcu_assign_pointer(dev->mt76.wcid[idx], NULL);
103
104 spin_lock_bh(&dev->mt76.sta_poll_lock);
105 if (!list_empty(&msta->wcid.poll_list))
106 list_del_init(&msta->wcid.poll_list);
107 spin_unlock_bh(&dev->mt76.sta_poll_lock);
108
109 mutex_lock(&dev->mt76.mutex);
110 dev->mt76.vif_mask &= ~BIT_ULL(mvif->idx);
111 mutex_unlock(&dev->mt76.mutex);
112
113 mt76_wcid_cleanup(&dev->mt76, &mvif->sta.wcid);
114 }
115
mt7603_init_edcca(struct mt7603_dev * dev)116 void mt7603_init_edcca(struct mt7603_dev *dev)
117 {
118 /* Set lower signal level to -65dBm */
119 mt76_rmw_field(dev, MT_RXTD(8), MT_RXTD_8_LOWER_SIGNAL, 0x23);
120
121 /* clear previous energy detect monitor results */
122 mt76_rr(dev, MT_MIB_STAT_ED);
123
124 if (dev->ed_monitor)
125 mt76_set(dev, MT_MIB_CTL, MT_MIB_CTL_ED_TIME);
126 else
127 mt76_clear(dev, MT_MIB_CTL, MT_MIB_CTL_ED_TIME);
128
129 dev->ed_strict_mode = 0xff;
130 dev->ed_strong_signal = 0;
131 dev->ed_time = ktime_get_boottime();
132
133 mt7603_edcca_set_strict(dev, false);
134 }
135
mt7603_set_channel(struct mt76_phy * mphy)136 int mt7603_set_channel(struct mt76_phy *mphy)
137 {
138 struct mt7603_dev *dev = container_of(mphy->dev, struct mt7603_dev, mt76);
139 struct cfg80211_chan_def *def = &mphy->chandef;
140
141 u8 *rssi_data = (u8 *)dev->mt76.eeprom.data;
142 int idx, ret;
143 u8 bw = MT_BW_20;
144 bool failed = false;
145
146 tasklet_disable(&dev->mt76.pre_tbtt_tasklet);
147
148 mt7603_beacon_set_timer(dev, -1, 0);
149 mt7603_mac_stop(dev);
150
151 if (def->width == NL80211_CHAN_WIDTH_40)
152 bw = MT_BW_40;
153
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 ieee80211_queue_delayed_work(mt76_hw(dev), &dev->mphy.mac_work,
178 msecs_to_jiffies(MT7603_WATCHDOG_TIME));
179
180 /* reset channel stats */
181 mt76_clear(dev, MT_MIB_CTL, MT_MIB_CTL_READ_CLR_DIS);
182 mt76_set(dev, MT_MIB_CTL,
183 MT_MIB_CTL_CCA_NAV_TX | MT_MIB_CTL_PSCCA_TIME);
184 mt76_rr(dev, MT_MIB_STAT_CCA);
185 mt7603_cca_stats_reset(dev);
186
187 dev->mphy.survey_time = ktime_get_boottime();
188
189 mt7603_init_edcca(dev);
190
191 out:
192 if (!mphy->offchannel)
193 mt7603_beacon_set_timer(dev, -1, dev->mt76.beacon_int);
194
195 tasklet_enable(&dev->mt76.pre_tbtt_tasklet);
196
197 if (failed)
198 mt7603_mac_work(&dev->mphy.mac_work.work);
199
200 return ret;
201 }
202
mt7603_set_sar_specs(struct ieee80211_hw * hw,const struct cfg80211_sar_specs * sar)203 static int mt7603_set_sar_specs(struct ieee80211_hw *hw,
204 const struct cfg80211_sar_specs *sar)
205 {
206 struct mt7603_dev *dev = hw->priv;
207 struct mt76_phy *mphy = &dev->mphy;
208 int err;
209
210 if (!cfg80211_chandef_valid(&mphy->chandef))
211 return -EINVAL;
212
213 err = mt76_init_sar_power(hw, sar);
214 if (err)
215 return err;
216
217 return mt76_update_channel(mphy);
218 }
219
220 static int
mt7603_config(struct ieee80211_hw * hw,u32 changed)221 mt7603_config(struct ieee80211_hw *hw, u32 changed)
222 {
223 struct mt7603_dev *dev = hw->priv;
224 int ret = 0;
225
226 if (changed & (IEEE80211_CONF_CHANGE_CHANNEL |
227 IEEE80211_CONF_CHANGE_POWER))
228 ret = mt76_update_channel(&dev->mphy);
229
230 if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
231 mutex_lock(&dev->mt76.mutex);
232
233 if (!(hw->conf.flags & IEEE80211_CONF_MONITOR))
234 dev->rxfilter |= MT_WF_RFCR_DROP_OTHER_UC;
235 else
236 dev->rxfilter &= ~MT_WF_RFCR_DROP_OTHER_UC;
237
238 mt76_wr(dev, MT_WF_RFCR, dev->rxfilter);
239
240 mutex_unlock(&dev->mt76.mutex);
241 }
242
243 return ret;
244 }
245
246 static void
mt7603_configure_filter(struct ieee80211_hw * hw,unsigned int changed_flags,unsigned int * total_flags,u64 multicast)247 mt7603_configure_filter(struct ieee80211_hw *hw, unsigned int changed_flags,
248 unsigned int *total_flags, u64 multicast)
249 {
250 struct mt7603_dev *dev = hw->priv;
251 u32 flags = 0;
252
253 #define MT76_FILTER(_flag, _hw) do { \
254 flags |= *total_flags & FIF_##_flag; \
255 dev->rxfilter &= ~(_hw); \
256 dev->rxfilter |= !(flags & FIF_##_flag) * (_hw); \
257 } while (0)
258
259 dev->rxfilter &= ~(MT_WF_RFCR_DROP_OTHER_BSS |
260 MT_WF_RFCR_DROP_OTHER_BEACON |
261 MT_WF_RFCR_DROP_FRAME_REPORT |
262 MT_WF_RFCR_DROP_PROBEREQ |
263 MT_WF_RFCR_DROP_MCAST_FILTERED |
264 MT_WF_RFCR_DROP_MCAST |
265 MT_WF_RFCR_DROP_BCAST |
266 MT_WF_RFCR_DROP_DUPLICATE |
267 MT_WF_RFCR_DROP_A2_BSSID |
268 MT_WF_RFCR_DROP_UNWANTED_CTL |
269 MT_WF_RFCR_DROP_STBC_MULTI);
270
271 MT76_FILTER(OTHER_BSS, MT_WF_RFCR_DROP_OTHER_TIM |
272 MT_WF_RFCR_DROP_A3_MAC |
273 MT_WF_RFCR_DROP_A3_BSSID);
274
275 MT76_FILTER(FCSFAIL, MT_WF_RFCR_DROP_FCSFAIL);
276
277 MT76_FILTER(CONTROL, MT_WF_RFCR_DROP_CTS |
278 MT_WF_RFCR_DROP_RTS |
279 MT_WF_RFCR_DROP_CTL_RSV |
280 MT_WF_RFCR_DROP_NDPA);
281
282 *total_flags = flags;
283 mt76_wr(dev, MT_WF_RFCR, dev->rxfilter);
284 }
285
286 static void
mt7603_bss_info_changed(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * info,u64 changed)287 mt7603_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
288 struct ieee80211_bss_conf *info, u64 changed)
289 {
290 struct mt7603_dev *dev = hw->priv;
291 struct mt7603_vif *mvif = (struct mt7603_vif *)vif->drv_priv;
292
293 mutex_lock(&dev->mt76.mutex);
294
295 if (changed & (BSS_CHANGED_ASSOC | BSS_CHANGED_BSSID)) {
296 if (vif->cfg.assoc || vif->cfg.ibss_joined) {
297 mt76_wr(dev, MT_BSSID0(mvif->idx),
298 get_unaligned_le32(info->bssid));
299 mt76_wr(dev, MT_BSSID1(mvif->idx),
300 (get_unaligned_le16(info->bssid + 4) |
301 MT_BSSID1_VALID));
302 } else {
303 mt76_wr(dev, MT_BSSID0(mvif->idx), 0);
304 mt76_wr(dev, MT_BSSID1(mvif->idx), 0);
305 }
306 }
307
308 if (changed & BSS_CHANGED_ERP_SLOT) {
309 int slottime = info->use_short_slot ? 9 : 20;
310
311 if (slottime != dev->slottime) {
312 dev->slottime = slottime;
313 mt7603_mac_set_timing(dev);
314 }
315 }
316
317 if (changed & (BSS_CHANGED_BEACON_ENABLED | BSS_CHANGED_BEACON_INT)) {
318 int beacon_int = !!info->enable_beacon * info->beacon_int;
319
320 tasklet_disable(&dev->mt76.pre_tbtt_tasklet);
321 mt7603_beacon_set_timer(dev, mvif->idx, beacon_int);
322 tasklet_enable(&dev->mt76.pre_tbtt_tasklet);
323 }
324
325 mutex_unlock(&dev->mt76.mutex);
326 }
327
328 int
mt7603_sta_add(struct mt76_dev * mdev,struct ieee80211_vif * vif,struct ieee80211_sta * sta)329 mt7603_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif,
330 struct ieee80211_sta *sta)
331 {
332 struct mt7603_dev *dev = container_of(mdev, struct mt7603_dev, mt76);
333 struct mt7603_sta *msta = (struct mt7603_sta *)sta->drv_priv;
334 struct mt7603_vif *mvif = (struct mt7603_vif *)vif->drv_priv;
335 int idx;
336 int ret = 0;
337
338 idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7603_WTBL_STA - 1);
339 if (idx < 0)
340 return -ENOSPC;
341
342 INIT_LIST_HEAD(&msta->wcid.poll_list);
343 __skb_queue_head_init(&msta->psq);
344 msta->ps = ~0;
345 msta->smps = ~0;
346 msta->wcid.sta = 1;
347 msta->wcid.idx = idx;
348 msta->vif = mvif;
349 mt7603_wtbl_init(dev, idx, mvif->idx, sta->addr);
350 mt7603_wtbl_set_ps(dev, msta, false);
351
352 if (vif->type == NL80211_IFTYPE_AP)
353 set_bit(MT_WCID_FLAG_CHECK_PS, &msta->wcid.flags);
354
355 return ret;
356 }
357
358 int
mt7603_sta_event(struct mt76_dev * mdev,struct ieee80211_vif * vif,struct ieee80211_sta * sta,enum mt76_sta_event ev)359 mt7603_sta_event(struct mt76_dev *mdev, struct ieee80211_vif *vif,
360 struct ieee80211_sta *sta, enum mt76_sta_event ev)
361 {
362 struct mt7603_dev *dev = container_of(mdev, struct mt7603_dev, mt76);
363
364 if (ev == MT76_STA_EVENT_ASSOC) {
365 mutex_lock(&dev->mt76.mutex);
366 mt7603_wtbl_update_cap(dev, sta);
367 mutex_unlock(&dev->mt76.mutex);
368 }
369
370 return 0;
371 }
372
373 void
mt7603_sta_remove(struct mt76_dev * mdev,struct ieee80211_vif * vif,struct ieee80211_sta * sta)374 mt7603_sta_remove(struct mt76_dev *mdev, struct ieee80211_vif *vif,
375 struct ieee80211_sta *sta)
376 {
377 struct mt7603_dev *dev = container_of(mdev, struct mt7603_dev, mt76);
378 struct mt7603_vif *mvif = (struct mt7603_vif *)vif->drv_priv;
379 struct mt7603_sta *msta = (struct mt7603_sta *)sta->drv_priv;
380 struct mt76_wcid *wcid = (struct mt76_wcid *)sta->drv_priv;
381
382 spin_lock_bh(&dev->ps_lock);
383 __skb_queue_purge(&msta->psq);
384 mt7603_filter_tx(dev, mvif->idx, wcid->idx, true);
385 spin_unlock_bh(&dev->ps_lock);
386
387 spin_lock_bh(&mdev->sta_poll_lock);
388 if (!list_empty(&msta->wcid.poll_list))
389 list_del_init(&msta->wcid.poll_list);
390 spin_unlock_bh(&mdev->sta_poll_lock);
391
392 mt7603_wtbl_clear(dev, wcid->idx);
393 }
394
395 static void
mt7603_ps_tx_list(struct mt7603_dev * dev,struct sk_buff_head * list)396 mt7603_ps_tx_list(struct mt7603_dev *dev, struct sk_buff_head *list)
397 {
398 struct sk_buff *skb;
399
400 while ((skb = __skb_dequeue(list)) != NULL) {
401 int qid = skb_get_queue_mapping(skb);
402
403 mt76_tx_queue_skb_raw(dev, dev->mphy.q_tx[qid], skb, 0);
404 }
405 }
406
407 void
mt7603_sta_ps(struct mt76_dev * mdev,struct ieee80211_sta * sta,bool ps)408 mt7603_sta_ps(struct mt76_dev *mdev, struct ieee80211_sta *sta, bool ps)
409 {
410 struct mt7603_dev *dev = container_of(mdev, struct mt7603_dev, mt76);
411 struct mt7603_sta *msta = (struct mt7603_sta *)sta->drv_priv;
412 struct sk_buff_head list;
413
414 mt76_stop_tx_queues(&dev->mphy, sta, true);
415 mt7603_wtbl_set_ps(dev, msta, ps);
416 if (ps)
417 return;
418
419 __skb_queue_head_init(&list);
420
421 spin_lock_bh(&dev->ps_lock);
422 skb_queue_splice_tail_init(&msta->psq, &list);
423 spin_unlock_bh(&dev->ps_lock);
424
425 mt7603_ps_tx_list(dev, &list);
426 }
427
428 static void
mt7603_ps_set_more_data(struct sk_buff * skb)429 mt7603_ps_set_more_data(struct sk_buff *skb)
430 {
431 struct ieee80211_hdr *hdr;
432
433 hdr = (struct ieee80211_hdr *)&skb->data[MT_TXD_SIZE];
434 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_MOREDATA);
435 }
436
437 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)438 mt7603_release_buffered_frames(struct ieee80211_hw *hw,
439 struct ieee80211_sta *sta,
440 u16 tids, int nframes,
441 enum ieee80211_frame_release_type reason,
442 bool more_data)
443 {
444 struct mt7603_dev *dev = hw->priv;
445 struct mt7603_sta *msta = (struct mt7603_sta *)sta->drv_priv;
446 struct sk_buff_head list;
447 struct sk_buff *skb, *tmp;
448
449 __skb_queue_head_init(&list);
450
451 mt7603_wtbl_set_ps(dev, msta, false);
452
453 spin_lock_bh(&dev->ps_lock);
454 skb_queue_walk_safe(&msta->psq, skb, tmp) {
455 if (!nframes)
456 break;
457
458 if (!(tids & BIT(skb->priority)))
459 continue;
460
461 skb_set_queue_mapping(skb, MT_TXQ_PSD);
462 __skb_unlink(skb, &msta->psq);
463 mt7603_ps_set_more_data(skb);
464 __skb_queue_tail(&list, skb);
465 nframes--;
466 }
467 spin_unlock_bh(&dev->ps_lock);
468
469 if (!skb_queue_empty(&list))
470 ieee80211_sta_eosp(sta);
471
472 mt7603_ps_tx_list(dev, &list);
473
474 if (nframes)
475 mt76_release_buffered_frames(hw, sta, tids, nframes, reason,
476 more_data);
477 }
478
479 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)480 mt7603_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
481 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
482 struct ieee80211_key_conf *key)
483 {
484 struct mt7603_dev *dev = hw->priv;
485 struct mt7603_vif *mvif = (struct mt7603_vif *)vif->drv_priv;
486 struct mt7603_sta *msta = sta ? (struct mt7603_sta *)sta->drv_priv :
487 &mvif->sta;
488 struct mt76_wcid *wcid = &msta->wcid;
489 int idx = key->keyidx;
490
491 /* fall back to sw encryption for unsupported ciphers */
492 switch (key->cipher) {
493 case WLAN_CIPHER_SUITE_TKIP:
494 case WLAN_CIPHER_SUITE_CCMP:
495 break;
496 default:
497 return -EOPNOTSUPP;
498 }
499
500 /*
501 * The hardware does not support per-STA RX GTK, fall back
502 * to software mode for these.
503 */
504 if ((vif->type == NL80211_IFTYPE_ADHOC ||
505 vif->type == NL80211_IFTYPE_MESH_POINT) &&
506 (key->cipher == WLAN_CIPHER_SUITE_TKIP ||
507 key->cipher == WLAN_CIPHER_SUITE_CCMP) &&
508 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE))
509 return -EOPNOTSUPP;
510
511 if (cmd != SET_KEY) {
512 if (idx == wcid->hw_key_idx)
513 wcid->hw_key_idx = -1;
514
515 return 0;
516 }
517
518 key->hw_key_idx = wcid->idx;
519 wcid->hw_key_idx = idx;
520 mt76_wcid_key_setup(&dev->mt76, wcid, key);
521
522 return mt7603_wtbl_set_key(dev, wcid->idx, key);
523 }
524
525 static int
mt7603_conf_tx(struct ieee80211_hw * hw,struct ieee80211_vif * vif,unsigned int link_id,u16 queue,const struct ieee80211_tx_queue_params * params)526 mt7603_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
527 unsigned int link_id, u16 queue,
528 const struct ieee80211_tx_queue_params *params)
529 {
530 struct mt7603_dev *dev = hw->priv;
531 u16 cw_min = (1 << 5) - 1;
532 u16 cw_max = (1 << 10) - 1;
533 u32 val;
534
535 queue = dev->mphy.q_tx[queue]->hw_idx;
536
537 if (params->cw_min)
538 cw_min = params->cw_min;
539 if (params->cw_max)
540 cw_max = params->cw_max;
541
542 mutex_lock(&dev->mt76.mutex);
543 mt7603_mac_stop(dev);
544
545 val = mt76_rr(dev, MT_WMM_TXOP(queue));
546 val &= ~(MT_WMM_TXOP_MASK << MT_WMM_TXOP_SHIFT(queue));
547 val |= params->txop << MT_WMM_TXOP_SHIFT(queue);
548 mt76_wr(dev, MT_WMM_TXOP(queue), val);
549
550 val = mt76_rr(dev, MT_WMM_AIFSN);
551 val &= ~(MT_WMM_AIFSN_MASK << MT_WMM_AIFSN_SHIFT(queue));
552 val |= params->aifs << MT_WMM_AIFSN_SHIFT(queue);
553 mt76_wr(dev, MT_WMM_AIFSN, val);
554
555 val = mt76_rr(dev, MT_WMM_CWMIN);
556 val &= ~(MT_WMM_CWMIN_MASK << MT_WMM_CWMIN_SHIFT(queue));
557 val |= cw_min << MT_WMM_CWMIN_SHIFT(queue);
558 mt76_wr(dev, MT_WMM_CWMIN, val);
559
560 val = mt76_rr(dev, MT_WMM_CWMAX(queue));
561 val &= ~(MT_WMM_CWMAX_MASK << MT_WMM_CWMAX_SHIFT(queue));
562 val |= cw_max << MT_WMM_CWMAX_SHIFT(queue);
563 mt76_wr(dev, MT_WMM_CWMAX(queue), val);
564
565 mt7603_mac_start(dev);
566 mutex_unlock(&dev->mt76.mutex);
567
568 return 0;
569 }
570
571 static void
mt7603_flush(struct ieee80211_hw * hw,struct ieee80211_vif * vif,u32 queues,bool drop)572 mt7603_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
573 u32 queues, bool drop)
574 {
575 }
576
577 static int
mt7603_ampdu_action(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_ampdu_params * params)578 mt7603_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
579 struct ieee80211_ampdu_params *params)
580 {
581 enum ieee80211_ampdu_mlme_action action = params->action;
582 struct mt7603_dev *dev = hw->priv;
583 struct ieee80211_sta *sta = params->sta;
584 struct ieee80211_txq *txq = sta->txq[params->tid];
585 struct mt7603_sta *msta = (struct mt7603_sta *)sta->drv_priv;
586 u16 tid = params->tid;
587 u16 ssn = params->ssn;
588 u8 ba_size = params->buf_size;
589 struct mt76_txq *mtxq;
590 int ret = 0;
591
592 if (!txq)
593 return -EINVAL;
594
595 mtxq = (struct mt76_txq *)txq->drv_priv;
596
597 mutex_lock(&dev->mt76.mutex);
598 switch (action) {
599 case IEEE80211_AMPDU_RX_START:
600 mt76_rx_aggr_start(&dev->mt76, &msta->wcid, tid, ssn,
601 params->buf_size);
602 mt7603_mac_rx_ba_reset(dev, sta->addr, tid);
603 break;
604 case IEEE80211_AMPDU_RX_STOP:
605 mt76_rx_aggr_stop(&dev->mt76, &msta->wcid, tid);
606 break;
607 case IEEE80211_AMPDU_TX_OPERATIONAL:
608 mtxq->aggr = true;
609 mtxq->send_bar = false;
610 mt7603_mac_tx_ba_reset(dev, msta->wcid.idx, tid, ba_size);
611 break;
612 case IEEE80211_AMPDU_TX_STOP_FLUSH:
613 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
614 mtxq->aggr = false;
615 mt7603_mac_tx_ba_reset(dev, msta->wcid.idx, tid, -1);
616 break;
617 case IEEE80211_AMPDU_TX_START:
618 mtxq->agg_ssn = IEEE80211_SN_TO_SEQ(ssn);
619 ret = IEEE80211_AMPDU_TX_START_IMMEDIATE;
620 break;
621 case IEEE80211_AMPDU_TX_STOP_CONT:
622 mtxq->aggr = false;
623 mt7603_mac_tx_ba_reset(dev, msta->wcid.idx, tid, -1);
624 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
625 break;
626 }
627 mutex_unlock(&dev->mt76.mutex);
628
629 return ret;
630 }
631
632 static void
mt7603_sta_rate_tbl_update(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta)633 mt7603_sta_rate_tbl_update(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
634 struct ieee80211_sta *sta)
635 {
636 struct mt7603_dev *dev = hw->priv;
637 struct mt7603_sta *msta = (struct mt7603_sta *)sta->drv_priv;
638 struct ieee80211_sta_rates *sta_rates = rcu_dereference(sta->rates);
639 int i;
640
641 if (!sta_rates)
642 return;
643
644 spin_lock_bh(&dev->mt76.lock);
645 for (i = 0; i < ARRAY_SIZE(msta->rates); i++) {
646 msta->rates[i].idx = sta_rates->rate[i].idx;
647 msta->rates[i].count = sta_rates->rate[i].count;
648 msta->rates[i].flags = sta_rates->rate[i].flags;
649
650 if (msta->rates[i].idx < 0 || !msta->rates[i].count)
651 break;
652 }
653 msta->n_rates = i;
654 mt7603_wtbl_set_rates(dev, msta, NULL, msta->rates);
655 msta->rate_probe = false;
656 mt7603_wtbl_set_smps(dev, msta,
657 sta->deflink.smps_mode == IEEE80211_SMPS_DYNAMIC);
658 spin_unlock_bh(&dev->mt76.lock);
659 }
660
661 static void
mt7603_set_coverage_class(struct ieee80211_hw * hw,s16 coverage_class)662 mt7603_set_coverage_class(struct ieee80211_hw *hw, s16 coverage_class)
663 {
664 struct mt7603_dev *dev = hw->priv;
665
666 mutex_lock(&dev->mt76.mutex);
667 dev->coverage_class = max_t(s16, coverage_class, 0);
668 mt7603_mac_set_timing(dev);
669 mutex_unlock(&dev->mt76.mutex);
670 }
671
mt7603_tx(struct ieee80211_hw * hw,struct ieee80211_tx_control * control,struct sk_buff * skb)672 static void mt7603_tx(struct ieee80211_hw *hw,
673 struct ieee80211_tx_control *control,
674 struct sk_buff *skb)
675 {
676 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
677 struct ieee80211_vif *vif = info->control.vif;
678 struct mt7603_dev *dev = hw->priv;
679 struct mt76_wcid *wcid = &dev->global_sta.wcid;
680
681 if (control->sta) {
682 struct mt7603_sta *msta;
683
684 msta = (struct mt7603_sta *)control->sta->drv_priv;
685 wcid = &msta->wcid;
686 } else if (vif) {
687 struct mt7603_vif *mvif;
688
689 mvif = (struct mt7603_vif *)vif->drv_priv;
690 wcid = &mvif->sta.wcid;
691 }
692
693 mt76_tx(&dev->mphy, control->sta, wcid, skb);
694 }
695
696 const struct ieee80211_ops mt7603_ops = {
697 .add_chanctx = ieee80211_emulate_add_chanctx,
698 .remove_chanctx = ieee80211_emulate_remove_chanctx,
699 .change_chanctx = ieee80211_emulate_change_chanctx,
700 .switch_vif_chanctx = ieee80211_emulate_switch_vif_chanctx,
701 .tx = mt7603_tx,
702 .start = mt7603_start,
703 .stop = mt7603_stop,
704 .add_interface = mt7603_add_interface,
705 .remove_interface = mt7603_remove_interface,
706 .config = mt7603_config,
707 .configure_filter = mt7603_configure_filter,
708 .bss_info_changed = mt7603_bss_info_changed,
709 .sta_state = mt76_sta_state,
710 .sta_pre_rcu_remove = mt76_sta_pre_rcu_remove,
711 .set_key = mt7603_set_key,
712 .conf_tx = mt7603_conf_tx,
713 .sw_scan_start = mt76_sw_scan,
714 .sw_scan_complete = mt76_sw_scan_complete,
715 .flush = mt7603_flush,
716 .ampdu_action = mt7603_ampdu_action,
717 .get_txpower = mt76_get_txpower,
718 .wake_tx_queue = mt76_wake_tx_queue,
719 .sta_rate_tbl_update = mt7603_sta_rate_tbl_update,
720 .release_buffered_frames = mt7603_release_buffered_frames,
721 .set_coverage_class = mt7603_set_coverage_class,
722 .set_tim = mt76_set_tim,
723 .get_survey = mt76_get_survey,
724 .get_antenna = mt76_get_antenna,
725 .set_sar_specs = mt7603_set_sar_specs,
726 };
727
728 MODULE_DESCRIPTION("MediaTek MT7603E and MT76x8 wireless driver");
729 MODULE_LICENSE("Dual BSD/GPL");
730
mt7603_init(void)731 static int __init mt7603_init(void)
732 {
733 int ret;
734
735 ret = platform_driver_register(&mt76_wmac_driver);
736 if (ret)
737 return ret;
738
739 #ifdef CONFIG_PCI
740 ret = pci_register_driver(&mt7603_pci_driver);
741 if (ret)
742 platform_driver_unregister(&mt76_wmac_driver);
743 #endif
744 return ret;
745 }
746
mt7603_exit(void)747 static void __exit mt7603_exit(void)
748 {
749 #ifdef CONFIG_PCI
750 pci_unregister_driver(&mt7603_pci_driver);
751 #endif
752 platform_driver_unregister(&mt76_wmac_driver);
753 }
754
755 module_init(mt7603_init);
756 module_exit(mt7603_exit);
757