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 = ffs(~dev->mt76.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->mt76.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 mt76_packet_id_init(&mvif->sta.wcid);
73
74 eth_broadcast_addr(bc_addr);
75 mt7603_wtbl_init(dev, idx, mvif->idx, bc_addr);
76
77 mtxq = (struct mt76_txq *)vif->txq->drv_priv;
78 mtxq->wcid = &mvif->sta.wcid;
79 rcu_assign_pointer(dev->mt76.wcid[idx], &mvif->sta.wcid);
80
81 out:
82 mutex_unlock(&dev->mt76.mutex);
83
84 return ret;
85 }
86
87 static void
mt7603_remove_interface(struct ieee80211_hw * hw,struct ieee80211_vif * vif)88 mt7603_remove_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
89 {
90 struct mt7603_vif *mvif = (struct mt7603_vif *)vif->drv_priv;
91 struct mt7603_sta *msta = &mvif->sta;
92 struct mt7603_dev *dev = hw->priv;
93 int idx = msta->wcid.idx;
94
95 mt76_wr(dev, MT_MAC_ADDR0(mvif->idx), 0);
96 mt76_wr(dev, MT_MAC_ADDR1(mvif->idx), 0);
97 mt76_wr(dev, MT_BSSID0(mvif->idx), 0);
98 mt76_wr(dev, MT_BSSID1(mvif->idx), 0);
99 mt7603_beacon_set_timer(dev, mvif->idx, 0);
100
101 rcu_assign_pointer(dev->mt76.wcid[idx], NULL);
102
103 spin_lock_bh(&dev->sta_poll_lock);
104 if (!list_empty(&msta->poll_list))
105 list_del_init(&msta->poll_list);
106 spin_unlock_bh(&dev->sta_poll_lock);
107
108 mutex_lock(&dev->mt76.mutex);
109 dev->mt76.vif_mask &= ~BIT(mvif->idx);
110 mutex_unlock(&dev->mt76.mutex);
111
112 mt76_packet_id_flush(&dev->mt76, &mvif->sta.wcid);
113 }
114
mt7603_init_edcca(struct mt7603_dev * dev)115 void mt7603_init_edcca(struct mt7603_dev *dev)
116 {
117 /* Set lower signal level to -65dBm */
118 mt76_rmw_field(dev, MT_RXTD(8), MT_RXTD_8_LOWER_SIGNAL, 0x23);
119
120 /* clear previous energy detect monitor results */
121 mt76_rr(dev, MT_MIB_STAT_ED);
122
123 if (dev->ed_monitor)
124 mt76_set(dev, MT_MIB_CTL, MT_MIB_CTL_ED_TIME);
125 else
126 mt76_clear(dev, MT_MIB_CTL, MT_MIB_CTL_ED_TIME);
127
128 dev->ed_strict_mode = 0xff;
129 dev->ed_strong_signal = 0;
130 dev->ed_time = ktime_get_boottime();
131
132 mt7603_edcca_set_strict(dev, false);
133 }
134
135 static int
mt7603_set_channel(struct mt7603_dev * dev,struct cfg80211_chan_def * def)136 mt7603_set_channel(struct mt7603_dev *dev, struct cfg80211_chan_def *def)
137 {
138 u8 *rssi_data = (u8 *)dev->mt76.eeprom.data;
139 int idx, ret;
140 u8 bw = MT_BW_20;
141 bool failed = false;
142
143 cancel_delayed_work_sync(&dev->mphy.mac_work);
144 tasklet_disable(&dev->mt76.pre_tbtt_tasklet);
145
146 mutex_lock(&dev->mt76.mutex);
147 set_bit(MT76_RESET, &dev->mphy.state);
148
149 mt7603_beacon_set_timer(dev, -1, 0);
150 mt76_set_channel(&dev->mphy);
151 mt7603_mac_stop(dev);
152
153 if (def->width == NL80211_CHAN_WIDTH_40)
154 bw = MT_BW_40;
155
156 dev->mphy.chandef = *def;
157 mt76_rmw_field(dev, MT_AGG_BWCR, MT_AGG_BWCR_BW, bw);
158 ret = mt7603_mcu_set_channel(dev);
159 if (ret) {
160 failed = true;
161 goto out;
162 }
163
164 if (def->chan->band == NL80211_BAND_5GHZ) {
165 idx = 1;
166 rssi_data += MT_EE_RSSI_OFFSET_5G;
167 } else {
168 idx = 0;
169 rssi_data += MT_EE_RSSI_OFFSET_2G;
170 }
171
172 memcpy(dev->rssi_offset, rssi_data, sizeof(dev->rssi_offset));
173
174 idx |= (def->chan -
175 mt76_hw(dev)->wiphy->bands[def->chan->band]->channels) << 1;
176 mt76_wr(dev, MT_WF_RMAC_CH_FREQ, idx);
177 mt7603_mac_set_timing(dev);
178 mt7603_mac_start(dev);
179
180 clear_bit(MT76_RESET, &dev->mphy.state);
181
182 mt76_txq_schedule_all(&dev->mphy);
183
184 ieee80211_queue_delayed_work(mt76_hw(dev), &dev->mphy.mac_work,
185 msecs_to_jiffies(MT7603_WATCHDOG_TIME));
186
187 /* reset channel stats */
188 mt76_clear(dev, MT_MIB_CTL, MT_MIB_CTL_READ_CLR_DIS);
189 mt76_set(dev, MT_MIB_CTL,
190 MT_MIB_CTL_CCA_NAV_TX | MT_MIB_CTL_PSCCA_TIME);
191 mt76_rr(dev, MT_MIB_STAT_CCA);
192 mt7603_cca_stats_reset(dev);
193
194 dev->mphy.survey_time = ktime_get_boottime();
195
196 mt7603_init_edcca(dev);
197
198 out:
199 if (!(mt76_hw(dev)->conf.flags & IEEE80211_CONF_OFFCHANNEL))
200 mt7603_beacon_set_timer(dev, -1, dev->mt76.beacon_int);
201 mutex_unlock(&dev->mt76.mutex);
202
203 tasklet_enable(&dev->mt76.pre_tbtt_tasklet);
204
205 if (failed)
206 mt7603_mac_work(&dev->mphy.mac_work.work);
207
208 return ret;
209 }
210
211 static int
mt7603_config(struct ieee80211_hw * hw,u32 changed)212 mt7603_config(struct ieee80211_hw *hw, u32 changed)
213 {
214 struct mt7603_dev *dev = hw->priv;
215 int ret = 0;
216
217 if (changed & (IEEE80211_CONF_CHANGE_CHANNEL |
218 IEEE80211_CONF_CHANGE_POWER)) {
219 ieee80211_stop_queues(hw);
220 ret = mt7603_set_channel(dev, &hw->conf.chandef);
221 ieee80211_wake_queues(hw);
222 }
223
224 if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
225 mutex_lock(&dev->mt76.mutex);
226
227 if (!(hw->conf.flags & IEEE80211_CONF_MONITOR))
228 dev->rxfilter |= MT_WF_RFCR_DROP_OTHER_UC;
229 else
230 dev->rxfilter &= ~MT_WF_RFCR_DROP_OTHER_UC;
231
232 mt76_wr(dev, MT_WF_RFCR, dev->rxfilter);
233
234 mutex_unlock(&dev->mt76.mutex);
235 }
236
237 return ret;
238 }
239
240 static void
mt7603_configure_filter(struct ieee80211_hw * hw,unsigned int changed_flags,unsigned int * total_flags,u64 multicast)241 mt7603_configure_filter(struct ieee80211_hw *hw, unsigned int changed_flags,
242 unsigned int *total_flags, u64 multicast)
243 {
244 struct mt7603_dev *dev = hw->priv;
245 u32 flags = 0;
246
247 #define MT76_FILTER(_flag, _hw) do { \
248 flags |= *total_flags & FIF_##_flag; \
249 dev->rxfilter &= ~(_hw); \
250 dev->rxfilter |= !(flags & FIF_##_flag) * (_hw); \
251 } while (0)
252
253 dev->rxfilter &= ~(MT_WF_RFCR_DROP_OTHER_BSS |
254 MT_WF_RFCR_DROP_OTHER_BEACON |
255 MT_WF_RFCR_DROP_FRAME_REPORT |
256 MT_WF_RFCR_DROP_PROBEREQ |
257 MT_WF_RFCR_DROP_MCAST_FILTERED |
258 MT_WF_RFCR_DROP_MCAST |
259 MT_WF_RFCR_DROP_BCAST |
260 MT_WF_RFCR_DROP_DUPLICATE |
261 MT_WF_RFCR_DROP_A2_BSSID |
262 MT_WF_RFCR_DROP_UNWANTED_CTL |
263 MT_WF_RFCR_DROP_STBC_MULTI);
264
265 MT76_FILTER(OTHER_BSS, MT_WF_RFCR_DROP_OTHER_TIM |
266 MT_WF_RFCR_DROP_A3_MAC |
267 MT_WF_RFCR_DROP_A3_BSSID);
268
269 MT76_FILTER(FCSFAIL, MT_WF_RFCR_DROP_FCSFAIL);
270
271 MT76_FILTER(CONTROL, MT_WF_RFCR_DROP_CTS |
272 MT_WF_RFCR_DROP_RTS |
273 MT_WF_RFCR_DROP_CTL_RSV |
274 MT_WF_RFCR_DROP_NDPA);
275
276 *total_flags = flags;
277 mt76_wr(dev, MT_WF_RFCR, dev->rxfilter);
278 }
279
280 static void
mt7603_bss_info_changed(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * info,u32 changed)281 mt7603_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
282 struct ieee80211_bss_conf *info, u32 changed)
283 {
284 struct mt7603_dev *dev = hw->priv;
285 struct mt7603_vif *mvif = (struct mt7603_vif *)vif->drv_priv;
286
287 mutex_lock(&dev->mt76.mutex);
288
289 if (changed & (BSS_CHANGED_ASSOC | BSS_CHANGED_BSSID)) {
290 if (info->assoc || info->ibss_joined) {
291 mt76_wr(dev, MT_BSSID0(mvif->idx),
292 get_unaligned_le32(info->bssid));
293 mt76_wr(dev, MT_BSSID1(mvif->idx),
294 (get_unaligned_le16(info->bssid + 4) |
295 MT_BSSID1_VALID));
296 } else {
297 mt76_wr(dev, MT_BSSID0(mvif->idx), 0);
298 mt76_wr(dev, MT_BSSID1(mvif->idx), 0);
299 }
300 }
301
302 if (changed & BSS_CHANGED_ERP_SLOT) {
303 int slottime = info->use_short_slot ? 9 : 20;
304
305 if (slottime != dev->slottime) {
306 dev->slottime = slottime;
307 mt7603_mac_set_timing(dev);
308 }
309 }
310
311 if (changed & (BSS_CHANGED_BEACON_ENABLED | BSS_CHANGED_BEACON_INT)) {
312 int beacon_int = !!info->enable_beacon * info->beacon_int;
313
314 tasklet_disable(&dev->mt76.pre_tbtt_tasklet);
315 mt7603_beacon_set_timer(dev, mvif->idx, beacon_int);
316 tasklet_enable(&dev->mt76.pre_tbtt_tasklet);
317 }
318
319 mutex_unlock(&dev->mt76.mutex);
320 }
321
322 int
mt7603_sta_add(struct mt76_dev * mdev,struct ieee80211_vif * vif,struct ieee80211_sta * sta)323 mt7603_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif,
324 struct ieee80211_sta *sta)
325 {
326 struct mt7603_dev *dev = container_of(mdev, struct mt7603_dev, mt76);
327 struct mt7603_sta *msta = (struct mt7603_sta *)sta->drv_priv;
328 struct mt7603_vif *mvif = (struct mt7603_vif *)vif->drv_priv;
329 int idx;
330 int ret = 0;
331
332 idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7603_WTBL_STA - 1);
333 if (idx < 0)
334 return -ENOSPC;
335
336 INIT_LIST_HEAD(&msta->poll_list);
337 __skb_queue_head_init(&msta->psq);
338 msta->ps = ~0;
339 msta->smps = ~0;
340 msta->wcid.sta = 1;
341 msta->wcid.idx = idx;
342 mt7603_wtbl_init(dev, idx, mvif->idx, sta->addr);
343 mt7603_wtbl_set_ps(dev, msta, false);
344
345 if (vif->type == NL80211_IFTYPE_AP)
346 set_bit(MT_WCID_FLAG_CHECK_PS, &msta->wcid.flags);
347
348 return ret;
349 }
350
351 void
mt7603_sta_assoc(struct mt76_dev * mdev,struct ieee80211_vif * vif,struct ieee80211_sta * sta)352 mt7603_sta_assoc(struct mt76_dev *mdev, struct ieee80211_vif *vif,
353 struct ieee80211_sta *sta)
354 {
355 struct mt7603_dev *dev = container_of(mdev, struct mt7603_dev, mt76);
356
357 mt7603_wtbl_update_cap(dev, sta);
358 }
359
360 void
mt7603_sta_remove(struct mt76_dev * mdev,struct ieee80211_vif * vif,struct ieee80211_sta * sta)361 mt7603_sta_remove(struct mt76_dev *mdev, struct ieee80211_vif *vif,
362 struct ieee80211_sta *sta)
363 {
364 struct mt7603_dev *dev = container_of(mdev, struct mt7603_dev, mt76);
365 struct mt7603_sta *msta = (struct mt7603_sta *)sta->drv_priv;
366 struct mt76_wcid *wcid = (struct mt76_wcid *)sta->drv_priv;
367
368 spin_lock_bh(&dev->ps_lock);
369 __skb_queue_purge(&msta->psq);
370 mt7603_filter_tx(dev, wcid->idx, true);
371 spin_unlock_bh(&dev->ps_lock);
372
373 spin_lock_bh(&dev->sta_poll_lock);
374 if (!list_empty(&msta->poll_list))
375 list_del_init(&msta->poll_list);
376 spin_unlock_bh(&dev->sta_poll_lock);
377
378 mt7603_wtbl_clear(dev, wcid->idx);
379 }
380
381 static void
mt7603_ps_tx_list(struct mt7603_dev * dev,struct sk_buff_head * list)382 mt7603_ps_tx_list(struct mt7603_dev *dev, struct sk_buff_head *list)
383 {
384 struct sk_buff *skb;
385
386 while ((skb = __skb_dequeue(list)) != NULL) {
387 int qid = skb_get_queue_mapping(skb);
388
389 mt76_tx_queue_skb_raw(dev, dev->mphy.q_tx[qid], skb, 0);
390 }
391 }
392
393 void
mt7603_sta_ps(struct mt76_dev * mdev,struct ieee80211_sta * sta,bool ps)394 mt7603_sta_ps(struct mt76_dev *mdev, struct ieee80211_sta *sta, bool ps)
395 {
396 struct mt7603_dev *dev = container_of(mdev, struct mt7603_dev, mt76);
397 struct mt7603_sta *msta = (struct mt7603_sta *)sta->drv_priv;
398 struct sk_buff_head list;
399
400 mt76_stop_tx_queues(&dev->mphy, sta, true);
401 mt7603_wtbl_set_ps(dev, msta, ps);
402 if (ps)
403 return;
404
405 __skb_queue_head_init(&list);
406
407 spin_lock_bh(&dev->ps_lock);
408 skb_queue_splice_tail_init(&msta->psq, &list);
409 spin_unlock_bh(&dev->ps_lock);
410
411 mt7603_ps_tx_list(dev, &list);
412 }
413
414 static void
mt7603_ps_set_more_data(struct sk_buff * skb)415 mt7603_ps_set_more_data(struct sk_buff *skb)
416 {
417 struct ieee80211_hdr *hdr;
418
419 hdr = (struct ieee80211_hdr *)&skb->data[MT_TXD_SIZE];
420 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_MOREDATA);
421 }
422
423 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)424 mt7603_release_buffered_frames(struct ieee80211_hw *hw,
425 struct ieee80211_sta *sta,
426 u16 tids, int nframes,
427 enum ieee80211_frame_release_type reason,
428 bool more_data)
429 {
430 struct mt7603_dev *dev = hw->priv;
431 struct mt7603_sta *msta = (struct mt7603_sta *)sta->drv_priv;
432 struct sk_buff_head list;
433 struct sk_buff *skb, *tmp;
434
435 __skb_queue_head_init(&list);
436
437 mt7603_wtbl_set_ps(dev, msta, false);
438
439 spin_lock_bh(&dev->ps_lock);
440 skb_queue_walk_safe(&msta->psq, skb, tmp) {
441 if (!nframes)
442 break;
443
444 if (!(tids & BIT(skb->priority)))
445 continue;
446
447 skb_set_queue_mapping(skb, MT_TXQ_PSD);
448 __skb_unlink(skb, &msta->psq);
449 mt7603_ps_set_more_data(skb);
450 __skb_queue_tail(&list, skb);
451 nframes--;
452 }
453 spin_unlock_bh(&dev->ps_lock);
454
455 if (!skb_queue_empty(&list))
456 ieee80211_sta_eosp(sta);
457
458 mt7603_ps_tx_list(dev, &list);
459
460 if (nframes)
461 mt76_release_buffered_frames(hw, sta, tids, nframes, reason,
462 more_data);
463 }
464
465 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)466 mt7603_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
467 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
468 struct ieee80211_key_conf *key)
469 {
470 struct mt7603_dev *dev = hw->priv;
471 struct mt7603_vif *mvif = (struct mt7603_vif *)vif->drv_priv;
472 struct mt7603_sta *msta = sta ? (struct mt7603_sta *)sta->drv_priv :
473 &mvif->sta;
474 struct mt76_wcid *wcid = &msta->wcid;
475 int idx = key->keyidx;
476
477 /* fall back to sw encryption for unsupported ciphers */
478 switch (key->cipher) {
479 case WLAN_CIPHER_SUITE_TKIP:
480 case WLAN_CIPHER_SUITE_CCMP:
481 break;
482 default:
483 return -EOPNOTSUPP;
484 }
485
486 /*
487 * The hardware does not support per-STA RX GTK, fall back
488 * to software mode for these.
489 */
490 if ((vif->type == NL80211_IFTYPE_ADHOC ||
491 vif->type == NL80211_IFTYPE_MESH_POINT) &&
492 (key->cipher == WLAN_CIPHER_SUITE_TKIP ||
493 key->cipher == WLAN_CIPHER_SUITE_CCMP) &&
494 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE))
495 return -EOPNOTSUPP;
496
497 if (cmd == SET_KEY) {
498 key->hw_key_idx = wcid->idx;
499 wcid->hw_key_idx = idx;
500 } else {
501 if (idx == wcid->hw_key_idx)
502 wcid->hw_key_idx = -1;
503
504 key = NULL;
505 }
506 mt76_wcid_key_setup(&dev->mt76, wcid, key);
507
508 return mt7603_wtbl_set_key(dev, wcid->idx, key);
509 }
510
511 static int
mt7603_conf_tx(struct ieee80211_hw * hw,struct ieee80211_vif * vif,u16 queue,const struct ieee80211_tx_queue_params * params)512 mt7603_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif, u16 queue,
513 const struct ieee80211_tx_queue_params *params)
514 {
515 struct mt7603_dev *dev = hw->priv;
516 u16 cw_min = (1 << 5) - 1;
517 u16 cw_max = (1 << 10) - 1;
518 u32 val;
519
520 queue = dev->mphy.q_tx[queue]->hw_idx;
521
522 if (params->cw_min)
523 cw_min = params->cw_min;
524 if (params->cw_max)
525 cw_max = params->cw_max;
526
527 mutex_lock(&dev->mt76.mutex);
528 mt7603_mac_stop(dev);
529
530 val = mt76_rr(dev, MT_WMM_TXOP(queue));
531 val &= ~(MT_WMM_TXOP_MASK << MT_WMM_TXOP_SHIFT(queue));
532 val |= params->txop << MT_WMM_TXOP_SHIFT(queue);
533 mt76_wr(dev, MT_WMM_TXOP(queue), val);
534
535 val = mt76_rr(dev, MT_WMM_AIFSN);
536 val &= ~(MT_WMM_AIFSN_MASK << MT_WMM_AIFSN_SHIFT(queue));
537 val |= params->aifs << MT_WMM_AIFSN_SHIFT(queue);
538 mt76_wr(dev, MT_WMM_AIFSN, val);
539
540 val = mt76_rr(dev, MT_WMM_CWMIN);
541 val &= ~(MT_WMM_CWMIN_MASK << MT_WMM_CWMIN_SHIFT(queue));
542 val |= cw_min << MT_WMM_CWMIN_SHIFT(queue);
543 mt76_wr(dev, MT_WMM_CWMIN, val);
544
545 val = mt76_rr(dev, MT_WMM_CWMAX(queue));
546 val &= ~(MT_WMM_CWMAX_MASK << MT_WMM_CWMAX_SHIFT(queue));
547 val |= cw_max << MT_WMM_CWMAX_SHIFT(queue);
548 mt76_wr(dev, MT_WMM_CWMAX(queue), val);
549
550 mt7603_mac_start(dev);
551 mutex_unlock(&dev->mt76.mutex);
552
553 return 0;
554 }
555
556 static void
mt7603_flush(struct ieee80211_hw * hw,struct ieee80211_vif * vif,u32 queues,bool drop)557 mt7603_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
558 u32 queues, bool drop)
559 {
560 }
561
562 static int
mt7603_ampdu_action(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_ampdu_params * params)563 mt7603_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
564 struct ieee80211_ampdu_params *params)
565 {
566 enum ieee80211_ampdu_mlme_action action = params->action;
567 struct mt7603_dev *dev = hw->priv;
568 struct ieee80211_sta *sta = params->sta;
569 struct ieee80211_txq *txq = sta->txq[params->tid];
570 struct mt7603_sta *msta = (struct mt7603_sta *)sta->drv_priv;
571 u16 tid = params->tid;
572 u16 ssn = params->ssn;
573 u8 ba_size = params->buf_size;
574 struct mt76_txq *mtxq;
575 int ret = 0;
576
577 if (!txq)
578 return -EINVAL;
579
580 mtxq = (struct mt76_txq *)txq->drv_priv;
581
582 mutex_lock(&dev->mt76.mutex);
583 switch (action) {
584 case IEEE80211_AMPDU_RX_START:
585 mt76_rx_aggr_start(&dev->mt76, &msta->wcid, tid, ssn,
586 params->buf_size);
587 mt7603_mac_rx_ba_reset(dev, sta->addr, tid);
588 break;
589 case IEEE80211_AMPDU_RX_STOP:
590 mt76_rx_aggr_stop(&dev->mt76, &msta->wcid, tid);
591 break;
592 case IEEE80211_AMPDU_TX_OPERATIONAL:
593 mtxq->aggr = true;
594 mtxq->send_bar = false;
595 mt7603_mac_tx_ba_reset(dev, msta->wcid.idx, tid, ba_size);
596 break;
597 case IEEE80211_AMPDU_TX_STOP_FLUSH:
598 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
599 mtxq->aggr = false;
600 mt7603_mac_tx_ba_reset(dev, msta->wcid.idx, tid, -1);
601 break;
602 case IEEE80211_AMPDU_TX_START:
603 mtxq->agg_ssn = IEEE80211_SN_TO_SEQ(ssn);
604 ret = IEEE80211_AMPDU_TX_START_IMMEDIATE;
605 break;
606 case IEEE80211_AMPDU_TX_STOP_CONT:
607 mtxq->aggr = false;
608 mt7603_mac_tx_ba_reset(dev, msta->wcid.idx, tid, -1);
609 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
610 break;
611 }
612 mutex_unlock(&dev->mt76.mutex);
613
614 return ret;
615 }
616
617 static void
mt7603_sta_rate_tbl_update(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta)618 mt7603_sta_rate_tbl_update(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
619 struct ieee80211_sta *sta)
620 {
621 struct mt7603_dev *dev = hw->priv;
622 struct mt7603_sta *msta = (struct mt7603_sta *)sta->drv_priv;
623 struct ieee80211_sta_rates *sta_rates = rcu_dereference(sta->rates);
624 int i;
625
626 spin_lock_bh(&dev->mt76.lock);
627 for (i = 0; i < ARRAY_SIZE(msta->rates); i++) {
628 msta->rates[i].idx = sta_rates->rate[i].idx;
629 msta->rates[i].count = sta_rates->rate[i].count;
630 msta->rates[i].flags = sta_rates->rate[i].flags;
631
632 if (msta->rates[i].idx < 0 || !msta->rates[i].count)
633 break;
634 }
635 msta->n_rates = i;
636 mt7603_wtbl_set_rates(dev, msta, NULL, msta->rates);
637 msta->rate_probe = false;
638 mt7603_wtbl_set_smps(dev, msta,
639 sta->smps_mode == IEEE80211_SMPS_DYNAMIC);
640 spin_unlock_bh(&dev->mt76.lock);
641 }
642
643 static void
mt7603_set_coverage_class(struct ieee80211_hw * hw,s16 coverage_class)644 mt7603_set_coverage_class(struct ieee80211_hw *hw, s16 coverage_class)
645 {
646 struct mt7603_dev *dev = hw->priv;
647
648 mutex_lock(&dev->mt76.mutex);
649 dev->coverage_class = max_t(s16, coverage_class, 0);
650 mt7603_mac_set_timing(dev);
651 mutex_unlock(&dev->mt76.mutex);
652 }
653
mt7603_tx(struct ieee80211_hw * hw,struct ieee80211_tx_control * control,struct sk_buff * skb)654 static void mt7603_tx(struct ieee80211_hw *hw,
655 struct ieee80211_tx_control *control,
656 struct sk_buff *skb)
657 {
658 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
659 struct ieee80211_vif *vif = info->control.vif;
660 struct mt7603_dev *dev = hw->priv;
661 struct mt76_wcid *wcid = &dev->global_sta.wcid;
662
663 if (control->sta) {
664 struct mt7603_sta *msta;
665
666 msta = (struct mt7603_sta *)control->sta->drv_priv;
667 wcid = &msta->wcid;
668 } else if (vif) {
669 struct mt7603_vif *mvif;
670
671 mvif = (struct mt7603_vif *)vif->drv_priv;
672 wcid = &mvif->sta.wcid;
673 }
674
675 mt76_tx(&dev->mphy, control->sta, wcid, skb);
676 }
677
678 const struct ieee80211_ops mt7603_ops = {
679 .tx = mt7603_tx,
680 .start = mt7603_start,
681 .stop = mt7603_stop,
682 .add_interface = mt7603_add_interface,
683 .remove_interface = mt7603_remove_interface,
684 .config = mt7603_config,
685 .configure_filter = mt7603_configure_filter,
686 .bss_info_changed = mt7603_bss_info_changed,
687 .sta_state = mt76_sta_state,
688 .sta_pre_rcu_remove = mt76_sta_pre_rcu_remove,
689 .set_key = mt7603_set_key,
690 .conf_tx = mt7603_conf_tx,
691 .sw_scan_start = mt76_sw_scan,
692 .sw_scan_complete = mt76_sw_scan_complete,
693 .flush = mt7603_flush,
694 .ampdu_action = mt7603_ampdu_action,
695 .get_txpower = mt76_get_txpower,
696 .wake_tx_queue = mt76_wake_tx_queue,
697 .sta_rate_tbl_update = mt7603_sta_rate_tbl_update,
698 .release_buffered_frames = mt7603_release_buffered_frames,
699 .set_coverage_class = mt7603_set_coverage_class,
700 .set_tim = mt76_set_tim,
701 .get_survey = mt76_get_survey,
702 .get_antenna = mt76_get_antenna,
703 };
704
705 MODULE_LICENSE("Dual BSD/GPL");
706
mt7603_init(void)707 static int __init mt7603_init(void)
708 {
709 int ret;
710
711 ret = platform_driver_register(&mt76_wmac_driver);
712 if (ret)
713 return ret;
714
715 #ifdef CONFIG_PCI
716 ret = pci_register_driver(&mt7603_pci_driver);
717 if (ret)
718 platform_driver_unregister(&mt76_wmac_driver);
719 #endif
720 return ret;
721 }
722
mt7603_exit(void)723 static void __exit mt7603_exit(void)
724 {
725 #ifdef CONFIG_PCI
726 pci_unregister_driver(&mt7603_pci_driver);
727 #endif
728 platform_driver_unregister(&mt76_wmac_driver);
729 }
730
731 module_init(mt7603_init);
732 module_exit(mt7603_exit);
733