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)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->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
136 static int
mt7603_set_channel(struct ieee80211_hw * hw,struct cfg80211_chan_def * def)137 mt7603_set_channel(struct ieee80211_hw *hw, struct cfg80211_chan_def *def)
138 {
139 struct mt7603_dev *dev = hw->priv;
140 u8 *rssi_data = (u8 *)dev->mt76.eeprom.data;
141 int idx, ret;
142 u8 bw = MT_BW_20;
143 bool failed = false;
144
145 ieee80211_stop_queues(hw);
146 cancel_delayed_work_sync(&dev->mphy.mac_work);
147 tasklet_disable(&dev->mt76.pre_tbtt_tasklet);
148
149 mutex_lock(&dev->mt76.mutex);
150 set_bit(MT76_RESET, &dev->mphy.state);
151
152 mt7603_beacon_set_timer(dev, -1, 0);
153 mt76_set_channel(&dev->mphy);
154 mt7603_mac_stop(dev);
155
156 if (def->width == NL80211_CHAN_WIDTH_40)
157 bw = MT_BW_40;
158
159 dev->mphy.chandef = *def;
160 mt76_rmw_field(dev, MT_AGG_BWCR, MT_AGG_BWCR_BW, bw);
161 ret = mt7603_mcu_set_channel(dev);
162 if (ret) {
163 failed = true;
164 goto out;
165 }
166
167 if (def->chan->band == NL80211_BAND_5GHZ) {
168 idx = 1;
169 rssi_data += MT_EE_RSSI_OFFSET_5G;
170 } else {
171 idx = 0;
172 rssi_data += MT_EE_RSSI_OFFSET_2G;
173 }
174
175 memcpy(dev->rssi_offset, rssi_data, sizeof(dev->rssi_offset));
176
177 idx |= (def->chan -
178 mt76_hw(dev)->wiphy->bands[def->chan->band]->channels) << 1;
179 mt76_wr(dev, MT_WF_RMAC_CH_FREQ, idx);
180 mt7603_mac_set_timing(dev);
181 mt7603_mac_start(dev);
182
183 clear_bit(MT76_RESET, &dev->mphy.state);
184
185 mt76_txq_schedule_all(&dev->mphy);
186
187 ieee80211_queue_delayed_work(mt76_hw(dev), &dev->mphy.mac_work,
188 msecs_to_jiffies(MT7603_WATCHDOG_TIME));
189
190 /* reset channel stats */
191 mt76_clear(dev, MT_MIB_CTL, MT_MIB_CTL_READ_CLR_DIS);
192 mt76_set(dev, MT_MIB_CTL,
193 MT_MIB_CTL_CCA_NAV_TX | MT_MIB_CTL_PSCCA_TIME);
194 mt76_rr(dev, MT_MIB_STAT_CCA);
195 mt7603_cca_stats_reset(dev);
196
197 dev->mphy.survey_time = ktime_get_boottime();
198
199 mt7603_init_edcca(dev);
200
201 out:
202 if (!(mt76_hw(dev)->conf.flags & IEEE80211_CONF_OFFCHANNEL))
203 mt7603_beacon_set_timer(dev, -1, dev->mt76.beacon_int);
204 mutex_unlock(&dev->mt76.mutex);
205
206 tasklet_enable(&dev->mt76.pre_tbtt_tasklet);
207
208 if (failed)
209 mt7603_mac_work(&dev->mphy.mac_work.work);
210
211 ieee80211_wake_queues(hw);
212
213 return ret;
214 }
215
mt7603_set_sar_specs(struct ieee80211_hw * hw,const struct cfg80211_sar_specs * sar)216 static int mt7603_set_sar_specs(struct ieee80211_hw *hw,
217 const struct cfg80211_sar_specs *sar)
218 {
219 struct mt7603_dev *dev = hw->priv;
220 struct mt76_phy *mphy = &dev->mphy;
221 int err;
222
223 if (!cfg80211_chandef_valid(&mphy->chandef))
224 return -EINVAL;
225
226 err = mt76_init_sar_power(hw, sar);
227 if (err)
228 return err;
229
230 return mt7603_set_channel(hw, &mphy->chandef);
231 }
232
233 static int
mt7603_config(struct ieee80211_hw * hw,u32 changed)234 mt7603_config(struct ieee80211_hw *hw, u32 changed)
235 {
236 struct mt7603_dev *dev = hw->priv;
237 int ret = 0;
238
239 if (changed & (IEEE80211_CONF_CHANGE_CHANNEL |
240 IEEE80211_CONF_CHANGE_POWER))
241 ret = mt7603_set_channel(hw, &hw->conf.chandef);
242
243 if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
244 mutex_lock(&dev->mt76.mutex);
245
246 if (!(hw->conf.flags & IEEE80211_CONF_MONITOR))
247 dev->rxfilter |= MT_WF_RFCR_DROP_OTHER_UC;
248 else
249 dev->rxfilter &= ~MT_WF_RFCR_DROP_OTHER_UC;
250
251 mt76_wr(dev, MT_WF_RFCR, dev->rxfilter);
252
253 mutex_unlock(&dev->mt76.mutex);
254 }
255
256 return ret;
257 }
258
259 static void
mt7603_configure_filter(struct ieee80211_hw * hw,unsigned int changed_flags,unsigned int * total_flags,u64 multicast)260 mt7603_configure_filter(struct ieee80211_hw *hw, unsigned int changed_flags,
261 unsigned int *total_flags, u64 multicast)
262 {
263 struct mt7603_dev *dev = hw->priv;
264 u32 flags = 0;
265
266 #define MT76_FILTER(_flag, _hw) do { \
267 flags |= *total_flags & FIF_##_flag; \
268 dev->rxfilter &= ~(_hw); \
269 dev->rxfilter |= !(flags & FIF_##_flag) * (_hw); \
270 } while (0)
271
272 dev->rxfilter &= ~(MT_WF_RFCR_DROP_OTHER_BSS |
273 MT_WF_RFCR_DROP_OTHER_BEACON |
274 MT_WF_RFCR_DROP_FRAME_REPORT |
275 MT_WF_RFCR_DROP_PROBEREQ |
276 MT_WF_RFCR_DROP_MCAST_FILTERED |
277 MT_WF_RFCR_DROP_MCAST |
278 MT_WF_RFCR_DROP_BCAST |
279 MT_WF_RFCR_DROP_DUPLICATE |
280 MT_WF_RFCR_DROP_A2_BSSID |
281 MT_WF_RFCR_DROP_UNWANTED_CTL |
282 MT_WF_RFCR_DROP_STBC_MULTI);
283
284 MT76_FILTER(OTHER_BSS, MT_WF_RFCR_DROP_OTHER_TIM |
285 MT_WF_RFCR_DROP_A3_MAC |
286 MT_WF_RFCR_DROP_A3_BSSID);
287
288 MT76_FILTER(FCSFAIL, MT_WF_RFCR_DROP_FCSFAIL);
289
290 MT76_FILTER(CONTROL, MT_WF_RFCR_DROP_CTS |
291 MT_WF_RFCR_DROP_RTS |
292 MT_WF_RFCR_DROP_CTL_RSV |
293 MT_WF_RFCR_DROP_NDPA);
294
295 *total_flags = flags;
296 mt76_wr(dev, MT_WF_RFCR, dev->rxfilter);
297 }
298
299 static void
mt7603_bss_info_changed(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * info,u64 changed)300 mt7603_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
301 struct ieee80211_bss_conf *info, u64 changed)
302 {
303 struct mt7603_dev *dev = hw->priv;
304 struct mt7603_vif *mvif = (struct mt7603_vif *)vif->drv_priv;
305
306 mutex_lock(&dev->mt76.mutex);
307
308 if (changed & (BSS_CHANGED_ASSOC | BSS_CHANGED_BSSID)) {
309 if (vif->cfg.assoc || vif->cfg.ibss_joined) {
310 mt76_wr(dev, MT_BSSID0(mvif->idx),
311 get_unaligned_le32(info->bssid));
312 mt76_wr(dev, MT_BSSID1(mvif->idx),
313 (get_unaligned_le16(info->bssid + 4) |
314 MT_BSSID1_VALID));
315 } else {
316 mt76_wr(dev, MT_BSSID0(mvif->idx), 0);
317 mt76_wr(dev, MT_BSSID1(mvif->idx), 0);
318 }
319 }
320
321 if (changed & BSS_CHANGED_ERP_SLOT) {
322 int slottime = info->use_short_slot ? 9 : 20;
323
324 if (slottime != dev->slottime) {
325 dev->slottime = slottime;
326 mt7603_mac_set_timing(dev);
327 }
328 }
329
330 if (changed & (BSS_CHANGED_BEACON_ENABLED | BSS_CHANGED_BEACON_INT)) {
331 int beacon_int = !!info->enable_beacon * info->beacon_int;
332
333 tasklet_disable(&dev->mt76.pre_tbtt_tasklet);
334 mt7603_beacon_set_timer(dev, mvif->idx, beacon_int);
335 tasklet_enable(&dev->mt76.pre_tbtt_tasklet);
336 }
337
338 mutex_unlock(&dev->mt76.mutex);
339 }
340
341 int
mt7603_sta_add(struct mt76_dev * mdev,struct ieee80211_vif * vif,struct ieee80211_sta * sta)342 mt7603_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif,
343 struct ieee80211_sta *sta)
344 {
345 struct mt7603_dev *dev = container_of(mdev, struct mt7603_dev, mt76);
346 struct mt7603_sta *msta = (struct mt7603_sta *)sta->drv_priv;
347 struct mt7603_vif *mvif = (struct mt7603_vif *)vif->drv_priv;
348 int idx;
349 int ret = 0;
350
351 idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7603_WTBL_STA - 1);
352 if (idx < 0)
353 return -ENOSPC;
354
355 INIT_LIST_HEAD(&msta->wcid.poll_list);
356 __skb_queue_head_init(&msta->psq);
357 msta->ps = ~0;
358 msta->smps = ~0;
359 msta->wcid.sta = 1;
360 msta->wcid.idx = idx;
361 msta->vif = mvif;
362 mt7603_wtbl_init(dev, idx, mvif->idx, sta->addr);
363 mt7603_wtbl_set_ps(dev, msta, false);
364
365 if (vif->type == NL80211_IFTYPE_AP)
366 set_bit(MT_WCID_FLAG_CHECK_PS, &msta->wcid.flags);
367
368 return ret;
369 }
370
371 void
mt7603_sta_assoc(struct mt76_dev * mdev,struct ieee80211_vif * vif,struct ieee80211_sta * sta)372 mt7603_sta_assoc(struct mt76_dev *mdev, struct ieee80211_vif *vif,
373 struct ieee80211_sta *sta)
374 {
375 struct mt7603_dev *dev = container_of(mdev, struct mt7603_dev, mt76);
376
377 mt7603_wtbl_update_cap(dev, sta);
378 }
379
380 void
mt7603_sta_remove(struct mt76_dev * mdev,struct ieee80211_vif * vif,struct ieee80211_sta * sta)381 mt7603_sta_remove(struct mt76_dev *mdev, struct ieee80211_vif *vif,
382 struct ieee80211_sta *sta)
383 {
384 struct mt7603_dev *dev = container_of(mdev, struct mt7603_dev, mt76);
385 struct mt7603_vif *mvif = (struct mt7603_vif *)vif->drv_priv;
386 struct mt7603_sta *msta = (struct mt7603_sta *)sta->drv_priv;
387 struct mt76_wcid *wcid = (struct mt76_wcid *)sta->drv_priv;
388
389 spin_lock_bh(&dev->ps_lock);
390 __skb_queue_purge(&msta->psq);
391 mt7603_filter_tx(dev, mvif->idx, wcid->idx, true);
392 spin_unlock_bh(&dev->ps_lock);
393
394 spin_lock_bh(&mdev->sta_poll_lock);
395 if (!list_empty(&msta->wcid.poll_list))
396 list_del_init(&msta->wcid.poll_list);
397 spin_unlock_bh(&mdev->sta_poll_lock);
398
399 mt7603_wtbl_clear(dev, wcid->idx);
400 }
401
402 static void
mt7603_ps_tx_list(struct mt7603_dev * dev,struct sk_buff_head * list)403 mt7603_ps_tx_list(struct mt7603_dev *dev, struct sk_buff_head *list)
404 {
405 struct sk_buff *skb;
406
407 while ((skb = __skb_dequeue(list)) != NULL) {
408 int qid = skb_get_queue_mapping(skb);
409
410 mt76_tx_queue_skb_raw(dev, dev->mphy.q_tx[qid], skb, 0);
411 }
412 }
413
414 void
mt7603_sta_ps(struct mt76_dev * mdev,struct ieee80211_sta * sta,bool ps)415 mt7603_sta_ps(struct mt76_dev *mdev, struct ieee80211_sta *sta, bool ps)
416 {
417 struct mt7603_dev *dev = container_of(mdev, struct mt7603_dev, mt76);
418 struct mt7603_sta *msta = (struct mt7603_sta *)sta->drv_priv;
419 struct sk_buff_head list;
420
421 mt76_stop_tx_queues(&dev->mphy, sta, true);
422 mt7603_wtbl_set_ps(dev, msta, ps);
423 if (ps)
424 return;
425
426 __skb_queue_head_init(&list);
427
428 spin_lock_bh(&dev->ps_lock);
429 skb_queue_splice_tail_init(&msta->psq, &list);
430 spin_unlock_bh(&dev->ps_lock);
431
432 mt7603_ps_tx_list(dev, &list);
433 }
434
435 static void
mt7603_ps_set_more_data(struct sk_buff * skb)436 mt7603_ps_set_more_data(struct sk_buff *skb)
437 {
438 struct ieee80211_hdr *hdr;
439
440 hdr = (struct ieee80211_hdr *)&skb->data[MT_TXD_SIZE];
441 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_MOREDATA);
442 }
443
444 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)445 mt7603_release_buffered_frames(struct ieee80211_hw *hw,
446 struct ieee80211_sta *sta,
447 u16 tids, int nframes,
448 enum ieee80211_frame_release_type reason,
449 bool more_data)
450 {
451 struct mt7603_dev *dev = hw->priv;
452 struct mt7603_sta *msta = (struct mt7603_sta *)sta->drv_priv;
453 struct sk_buff_head list;
454 struct sk_buff *skb, *tmp;
455
456 __skb_queue_head_init(&list);
457
458 mt7603_wtbl_set_ps(dev, msta, false);
459
460 spin_lock_bh(&dev->ps_lock);
461 skb_queue_walk_safe(&msta->psq, skb, tmp) {
462 if (!nframes)
463 break;
464
465 if (!(tids & BIT(skb->priority)))
466 continue;
467
468 skb_set_queue_mapping(skb, MT_TXQ_PSD);
469 __skb_unlink(skb, &msta->psq);
470 mt7603_ps_set_more_data(skb);
471 __skb_queue_tail(&list, skb);
472 nframes--;
473 }
474 spin_unlock_bh(&dev->ps_lock);
475
476 if (!skb_queue_empty(&list))
477 ieee80211_sta_eosp(sta);
478
479 mt7603_ps_tx_list(dev, &list);
480
481 if (nframes)
482 mt76_release_buffered_frames(hw, sta, tids, nframes, reason,
483 more_data);
484 }
485
486 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)487 mt7603_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
488 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
489 struct ieee80211_key_conf *key)
490 {
491 struct mt7603_dev *dev = hw->priv;
492 struct mt7603_vif *mvif = (struct mt7603_vif *)vif->drv_priv;
493 struct mt7603_sta *msta = sta ? (struct mt7603_sta *)sta->drv_priv :
494 &mvif->sta;
495 struct mt76_wcid *wcid = &msta->wcid;
496 int idx = key->keyidx;
497
498 /* fall back to sw encryption for unsupported ciphers */
499 switch (key->cipher) {
500 case WLAN_CIPHER_SUITE_TKIP:
501 case WLAN_CIPHER_SUITE_CCMP:
502 break;
503 default:
504 return -EOPNOTSUPP;
505 }
506
507 /*
508 * The hardware does not support per-STA RX GTK, fall back
509 * to software mode for these.
510 */
511 if ((vif->type == NL80211_IFTYPE_ADHOC ||
512 vif->type == NL80211_IFTYPE_MESH_POINT) &&
513 (key->cipher == WLAN_CIPHER_SUITE_TKIP ||
514 key->cipher == WLAN_CIPHER_SUITE_CCMP) &&
515 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE))
516 return -EOPNOTSUPP;
517
518 if (cmd != SET_KEY) {
519 if (idx == wcid->hw_key_idx)
520 wcid->hw_key_idx = -1;
521
522 return 0;
523 }
524
525 key->hw_key_idx = wcid->idx;
526 wcid->hw_key_idx = idx;
527 mt76_wcid_key_setup(&dev->mt76, wcid, key);
528
529 return mt7603_wtbl_set_key(dev, wcid->idx, key);
530 }
531
532 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)533 mt7603_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
534 unsigned int link_id, u16 queue,
535 const struct ieee80211_tx_queue_params *params)
536 {
537 struct mt7603_dev *dev = hw->priv;
538 u16 cw_min = (1 << 5) - 1;
539 u16 cw_max = (1 << 10) - 1;
540 u32 val;
541
542 queue = dev->mphy.q_tx[queue]->hw_idx;
543
544 if (params->cw_min)
545 cw_min = params->cw_min;
546 if (params->cw_max)
547 cw_max = params->cw_max;
548
549 mutex_lock(&dev->mt76.mutex);
550 mt7603_mac_stop(dev);
551
552 val = mt76_rr(dev, MT_WMM_TXOP(queue));
553 val &= ~(MT_WMM_TXOP_MASK << MT_WMM_TXOP_SHIFT(queue));
554 val |= params->txop << MT_WMM_TXOP_SHIFT(queue);
555 mt76_wr(dev, MT_WMM_TXOP(queue), val);
556
557 val = mt76_rr(dev, MT_WMM_AIFSN);
558 val &= ~(MT_WMM_AIFSN_MASK << MT_WMM_AIFSN_SHIFT(queue));
559 val |= params->aifs << MT_WMM_AIFSN_SHIFT(queue);
560 mt76_wr(dev, MT_WMM_AIFSN, val);
561
562 val = mt76_rr(dev, MT_WMM_CWMIN);
563 val &= ~(MT_WMM_CWMIN_MASK << MT_WMM_CWMIN_SHIFT(queue));
564 val |= cw_min << MT_WMM_CWMIN_SHIFT(queue);
565 mt76_wr(dev, MT_WMM_CWMIN, val);
566
567 val = mt76_rr(dev, MT_WMM_CWMAX(queue));
568 val &= ~(MT_WMM_CWMAX_MASK << MT_WMM_CWMAX_SHIFT(queue));
569 val |= cw_max << MT_WMM_CWMAX_SHIFT(queue);
570 mt76_wr(dev, MT_WMM_CWMAX(queue), val);
571
572 mt7603_mac_start(dev);
573 mutex_unlock(&dev->mt76.mutex);
574
575 return 0;
576 }
577
578 static void
mt7603_flush(struct ieee80211_hw * hw,struct ieee80211_vif * vif,u32 queues,bool drop)579 mt7603_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
580 u32 queues, bool drop)
581 {
582 }
583
584 static int
mt7603_ampdu_action(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_ampdu_params * params)585 mt7603_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
586 struct ieee80211_ampdu_params *params)
587 {
588 enum ieee80211_ampdu_mlme_action action = params->action;
589 struct mt7603_dev *dev = hw->priv;
590 struct ieee80211_sta *sta = params->sta;
591 struct ieee80211_txq *txq = sta->txq[params->tid];
592 struct mt7603_sta *msta = (struct mt7603_sta *)sta->drv_priv;
593 u16 tid = params->tid;
594 u16 ssn = params->ssn;
595 u8 ba_size = params->buf_size;
596 struct mt76_txq *mtxq;
597 int ret = 0;
598
599 if (!txq)
600 return -EINVAL;
601
602 mtxq = (struct mt76_txq *)txq->drv_priv;
603
604 mutex_lock(&dev->mt76.mutex);
605 switch (action) {
606 case IEEE80211_AMPDU_RX_START:
607 mt76_rx_aggr_start(&dev->mt76, &msta->wcid, tid, ssn,
608 params->buf_size);
609 mt7603_mac_rx_ba_reset(dev, sta->addr, tid);
610 break;
611 case IEEE80211_AMPDU_RX_STOP:
612 mt76_rx_aggr_stop(&dev->mt76, &msta->wcid, tid);
613 break;
614 case IEEE80211_AMPDU_TX_OPERATIONAL:
615 mtxq->aggr = true;
616 mtxq->send_bar = false;
617 mt7603_mac_tx_ba_reset(dev, msta->wcid.idx, tid, ba_size);
618 break;
619 case IEEE80211_AMPDU_TX_STOP_FLUSH:
620 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
621 mtxq->aggr = false;
622 mt7603_mac_tx_ba_reset(dev, msta->wcid.idx, tid, -1);
623 break;
624 case IEEE80211_AMPDU_TX_START:
625 mtxq->agg_ssn = IEEE80211_SN_TO_SEQ(ssn);
626 ret = IEEE80211_AMPDU_TX_START_IMMEDIATE;
627 break;
628 case IEEE80211_AMPDU_TX_STOP_CONT:
629 mtxq->aggr = false;
630 mt7603_mac_tx_ba_reset(dev, msta->wcid.idx, tid, -1);
631 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
632 break;
633 }
634 mutex_unlock(&dev->mt76.mutex);
635
636 return ret;
637 }
638
639 static void
mt7603_sta_rate_tbl_update(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta)640 mt7603_sta_rate_tbl_update(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
641 struct ieee80211_sta *sta)
642 {
643 struct mt7603_dev *dev = hw->priv;
644 struct mt7603_sta *msta = (struct mt7603_sta *)sta->drv_priv;
645 struct ieee80211_sta_rates *sta_rates = rcu_dereference(sta->rates);
646 int i;
647
648 if (!sta_rates)
649 return;
650
651 spin_lock_bh(&dev->mt76.lock);
652 for (i = 0; i < ARRAY_SIZE(msta->rates); i++) {
653 msta->rates[i].idx = sta_rates->rate[i].idx;
654 msta->rates[i].count = sta_rates->rate[i].count;
655 msta->rates[i].flags = sta_rates->rate[i].flags;
656
657 if (msta->rates[i].idx < 0 || !msta->rates[i].count)
658 break;
659 }
660 msta->n_rates = i;
661 mt7603_wtbl_set_rates(dev, msta, NULL, msta->rates);
662 msta->rate_probe = false;
663 mt7603_wtbl_set_smps(dev, msta,
664 sta->deflink.smps_mode == IEEE80211_SMPS_DYNAMIC);
665 spin_unlock_bh(&dev->mt76.lock);
666 }
667
668 static void
mt7603_set_coverage_class(struct ieee80211_hw * hw,s16 coverage_class)669 mt7603_set_coverage_class(struct ieee80211_hw *hw, s16 coverage_class)
670 {
671 struct mt7603_dev *dev = hw->priv;
672
673 mutex_lock(&dev->mt76.mutex);
674 dev->coverage_class = max_t(s16, coverage_class, 0);
675 mt7603_mac_set_timing(dev);
676 mutex_unlock(&dev->mt76.mutex);
677 }
678
mt7603_tx(struct ieee80211_hw * hw,struct ieee80211_tx_control * control,struct sk_buff * skb)679 static void mt7603_tx(struct ieee80211_hw *hw,
680 struct ieee80211_tx_control *control,
681 struct sk_buff *skb)
682 {
683 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
684 struct ieee80211_vif *vif = info->control.vif;
685 struct mt7603_dev *dev = hw->priv;
686 struct mt76_wcid *wcid = &dev->global_sta.wcid;
687
688 if (control->sta) {
689 struct mt7603_sta *msta;
690
691 msta = (struct mt7603_sta *)control->sta->drv_priv;
692 wcid = &msta->wcid;
693 } else if (vif) {
694 struct mt7603_vif *mvif;
695
696 mvif = (struct mt7603_vif *)vif->drv_priv;
697 wcid = &mvif->sta.wcid;
698 }
699
700 mt76_tx(&dev->mphy, control->sta, wcid, skb);
701 }
702
703 const struct ieee80211_ops mt7603_ops = {
704 .tx = mt7603_tx,
705 .start = mt7603_start,
706 .stop = mt7603_stop,
707 .add_interface = mt7603_add_interface,
708 .remove_interface = mt7603_remove_interface,
709 .config = mt7603_config,
710 .configure_filter = mt7603_configure_filter,
711 .bss_info_changed = mt7603_bss_info_changed,
712 .sta_state = mt76_sta_state,
713 .sta_pre_rcu_remove = mt76_sta_pre_rcu_remove,
714 .set_key = mt7603_set_key,
715 .conf_tx = mt7603_conf_tx,
716 .sw_scan_start = mt76_sw_scan,
717 .sw_scan_complete = mt76_sw_scan_complete,
718 .flush = mt7603_flush,
719 .ampdu_action = mt7603_ampdu_action,
720 .get_txpower = mt76_get_txpower,
721 .wake_tx_queue = mt76_wake_tx_queue,
722 .sta_rate_tbl_update = mt7603_sta_rate_tbl_update,
723 .release_buffered_frames = mt7603_release_buffered_frames,
724 .set_coverage_class = mt7603_set_coverage_class,
725 .set_tim = mt76_set_tim,
726 .get_survey = mt76_get_survey,
727 .get_antenna = mt76_get_antenna,
728 .set_sar_specs = mt7603_set_sar_specs,
729 };
730
731 MODULE_LICENSE("Dual BSD/GPL");
732
mt7603_init(void)733 static int __init mt7603_init(void)
734 {
735 int ret;
736
737 ret = platform_driver_register(&mt76_wmac_driver);
738 if (ret)
739 return ret;
740
741 #ifdef CONFIG_PCI
742 ret = pci_register_driver(&mt7603_pci_driver);
743 if (ret)
744 platform_driver_unregister(&mt76_wmac_driver);
745 #endif
746 return ret;
747 }
748
mt7603_exit(void)749 static void __exit mt7603_exit(void)
750 {
751 #ifdef CONFIG_PCI
752 pci_unregister_driver(&mt7603_pci_driver);
753 #endif
754 platform_driver_unregister(&mt76_wmac_driver);
755 }
756
757 module_init(mt7603_init);
758 module_exit(mt7603_exit);
759