1 // SPDX-License-Identifier: ISC
2 /* Copyright (C) 2020 MediaTek Inc. */
3
4 #include <linux/etherdevice.h>
5 #include <linux/platform_device.h>
6 #include <linux/pci.h>
7 #include <linux/module.h>
8 #include <net/ipv6.h>
9 #include "mt7921.h"
10 #include "mcu.h"
11
12 static int
mt7921_init_he_caps(struct mt792x_phy * phy,enum nl80211_band band,struct ieee80211_sband_iftype_data * data)13 mt7921_init_he_caps(struct mt792x_phy *phy, enum nl80211_band band,
14 struct ieee80211_sband_iftype_data *data)
15 {
16 int i, idx = 0;
17 int nss = hweight8(phy->mt76->chainmask);
18 u16 mcs_map = 0;
19
20 for (i = 0; i < 8; i++) {
21 if (i < nss)
22 mcs_map |= (IEEE80211_HE_MCS_SUPPORT_0_11 << (i * 2));
23 else
24 mcs_map |= (IEEE80211_HE_MCS_NOT_SUPPORTED << (i * 2));
25 }
26
27 for (i = 0; i < NUM_NL80211_IFTYPES; i++) {
28 struct ieee80211_sta_he_cap *he_cap = &data[idx].he_cap;
29 struct ieee80211_he_cap_elem *he_cap_elem =
30 &he_cap->he_cap_elem;
31 struct ieee80211_he_mcs_nss_supp *he_mcs =
32 &he_cap->he_mcs_nss_supp;
33
34 switch (i) {
35 case NL80211_IFTYPE_STATION:
36 case NL80211_IFTYPE_AP:
37 break;
38 default:
39 continue;
40 }
41
42 data[idx].types_mask = BIT(i);
43 he_cap->has_he = true;
44
45 he_cap_elem->mac_cap_info[0] =
46 IEEE80211_HE_MAC_CAP0_HTC_HE;
47 he_cap_elem->mac_cap_info[3] =
48 IEEE80211_HE_MAC_CAP3_OMI_CONTROL |
49 IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3;
50 he_cap_elem->mac_cap_info[4] =
51 IEEE80211_HE_MAC_CAP4_AMSDU_IN_AMPDU;
52
53 if (band == NL80211_BAND_2GHZ)
54 he_cap_elem->phy_cap_info[0] =
55 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G;
56 else
57 he_cap_elem->phy_cap_info[0] =
58 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G;
59
60 he_cap_elem->phy_cap_info[1] =
61 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD;
62 he_cap_elem->phy_cap_info[2] =
63 IEEE80211_HE_PHY_CAP2_NDP_4x_LTF_AND_3_2US |
64 IEEE80211_HE_PHY_CAP2_STBC_TX_UNDER_80MHZ |
65 IEEE80211_HE_PHY_CAP2_STBC_RX_UNDER_80MHZ |
66 IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO |
67 IEEE80211_HE_PHY_CAP2_UL_MU_PARTIAL_MU_MIMO;
68
69 switch (i) {
70 case NL80211_IFTYPE_AP:
71 he_cap_elem->mac_cap_info[2] |=
72 IEEE80211_HE_MAC_CAP2_BSR;
73 he_cap_elem->mac_cap_info[4] |=
74 IEEE80211_HE_MAC_CAP4_BQR;
75 he_cap_elem->mac_cap_info[5] |=
76 IEEE80211_HE_MAC_CAP5_OM_CTRL_UL_MU_DATA_DIS_RX;
77 he_cap_elem->phy_cap_info[3] |=
78 IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK |
79 IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK;
80 he_cap_elem->phy_cap_info[6] |=
81 IEEE80211_HE_PHY_CAP6_PARTIAL_BW_EXT_RANGE |
82 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT;
83 he_cap_elem->phy_cap_info[9] |=
84 IEEE80211_HE_PHY_CAP9_TX_1024_QAM_LESS_THAN_242_TONE_RU |
85 IEEE80211_HE_PHY_CAP9_RX_1024_QAM_LESS_THAN_242_TONE_RU;
86 break;
87 case NL80211_IFTYPE_STATION:
88 he_cap_elem->mac_cap_info[1] |=
89 IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US;
90
91 if (band == NL80211_BAND_2GHZ)
92 he_cap_elem->phy_cap_info[0] |=
93 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_RU_MAPPING_IN_2G;
94 else
95 he_cap_elem->phy_cap_info[0] |=
96 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_RU_MAPPING_IN_5G;
97
98 he_cap_elem->phy_cap_info[1] |=
99 IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A |
100 IEEE80211_HE_PHY_CAP1_HE_LTF_AND_GI_FOR_HE_PPDUS_0_8US;
101 he_cap_elem->phy_cap_info[3] |=
102 IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK |
103 IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK;
104 he_cap_elem->phy_cap_info[4] |=
105 IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE |
106 IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_4;
107 he_cap_elem->phy_cap_info[5] |=
108 IEEE80211_HE_PHY_CAP5_NG16_SU_FEEDBACK |
109 IEEE80211_HE_PHY_CAP5_NG16_MU_FEEDBACK;
110 he_cap_elem->phy_cap_info[6] |=
111 IEEE80211_HE_PHY_CAP6_CODEBOOK_SIZE_42_SU |
112 IEEE80211_HE_PHY_CAP6_CODEBOOK_SIZE_75_MU |
113 IEEE80211_HE_PHY_CAP6_TRIG_CQI_FB |
114 IEEE80211_HE_PHY_CAP6_PARTIAL_BW_EXT_RANGE |
115 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT;
116 he_cap_elem->phy_cap_info[7] |=
117 IEEE80211_HE_PHY_CAP7_POWER_BOOST_FACTOR_SUPP |
118 IEEE80211_HE_PHY_CAP7_HE_SU_MU_PPDU_4XLTF_AND_08_US_GI;
119 he_cap_elem->phy_cap_info[8] |=
120 IEEE80211_HE_PHY_CAP8_20MHZ_IN_40MHZ_HE_PPDU_IN_2G |
121 IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_484;
122 he_cap_elem->phy_cap_info[9] |=
123 IEEE80211_HE_PHY_CAP9_LONGER_THAN_16_SIGB_OFDM_SYM |
124 IEEE80211_HE_PHY_CAP9_NON_TRIGGERED_CQI_FEEDBACK |
125 IEEE80211_HE_PHY_CAP9_TX_1024_QAM_LESS_THAN_242_TONE_RU |
126 IEEE80211_HE_PHY_CAP9_RX_1024_QAM_LESS_THAN_242_TONE_RU |
127 IEEE80211_HE_PHY_CAP9_RX_FULL_BW_SU_USING_MU_WITH_COMP_SIGB |
128 IEEE80211_HE_PHY_CAP9_RX_FULL_BW_SU_USING_MU_WITH_NON_COMP_SIGB;
129
130 if (is_mt7922(phy->mt76->dev)) {
131 he_cap_elem->phy_cap_info[0] |=
132 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G;
133 he_cap_elem->phy_cap_info[8] |=
134 IEEE80211_HE_PHY_CAP8_20MHZ_IN_160MHZ_HE_PPDU |
135 IEEE80211_HE_PHY_CAP8_80MHZ_IN_160MHZ_HE_PPDU;
136 }
137 break;
138 }
139
140 he_mcs->rx_mcs_80 = cpu_to_le16(mcs_map);
141 he_mcs->tx_mcs_80 = cpu_to_le16(mcs_map);
142 if (is_mt7922(phy->mt76->dev)) {
143 he_mcs->rx_mcs_160 = cpu_to_le16(mcs_map);
144 he_mcs->tx_mcs_160 = cpu_to_le16(mcs_map);
145 }
146
147 memset(he_cap->ppe_thres, 0, sizeof(he_cap->ppe_thres));
148 if (he_cap_elem->phy_cap_info[6] &
149 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) {
150 mt76_connac_gen_ppe_thresh(he_cap->ppe_thres, nss);
151 } else {
152 he_cap_elem->phy_cap_info[9] |=
153 u8_encode_bits(IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_16US,
154 IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK);
155 }
156
157 if (band == NL80211_BAND_6GHZ) {
158 struct ieee80211_supported_band *sband =
159 &phy->mt76->sband_5g.sband;
160 struct ieee80211_sta_vht_cap *vht_cap = &sband->vht_cap;
161 struct ieee80211_sta_ht_cap *ht_cap = &sband->ht_cap;
162 u32 exp;
163 u16 cap;
164
165 cap = u16_encode_bits(ht_cap->ampdu_density,
166 IEEE80211_HE_6GHZ_CAP_MIN_MPDU_START);
167 exp = u32_get_bits(vht_cap->cap,
168 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK);
169 cap |= u16_encode_bits(exp,
170 IEEE80211_HE_6GHZ_CAP_MAX_AMPDU_LEN_EXP);
171 exp = u32_get_bits(vht_cap->cap,
172 IEEE80211_VHT_CAP_MAX_MPDU_MASK);
173 cap |= u16_encode_bits(exp,
174 IEEE80211_HE_6GHZ_CAP_MAX_MPDU_LEN);
175 if (vht_cap->cap & IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN)
176 cap |= IEEE80211_HE_6GHZ_CAP_TX_ANTPAT_CONS;
177 if (vht_cap->cap & IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN)
178 cap |= IEEE80211_HE_6GHZ_CAP_RX_ANTPAT_CONS;
179
180 data[idx].he_6ghz_capa.capa = cpu_to_le16(cap);
181 }
182 idx++;
183 }
184
185 return idx;
186 }
187
mt7921_set_stream_he_caps(struct mt792x_phy * phy)188 void mt7921_set_stream_he_caps(struct mt792x_phy *phy)
189 {
190 struct ieee80211_sband_iftype_data *data;
191 struct ieee80211_supported_band *band;
192 int n;
193
194 if (phy->mt76->cap.has_2ghz) {
195 data = phy->iftype[NL80211_BAND_2GHZ];
196 n = mt7921_init_he_caps(phy, NL80211_BAND_2GHZ, data);
197
198 band = &phy->mt76->sband_2g.sband;
199 band->iftype_data = data;
200 band->n_iftype_data = n;
201 }
202
203 if (phy->mt76->cap.has_5ghz) {
204 data = phy->iftype[NL80211_BAND_5GHZ];
205 n = mt7921_init_he_caps(phy, NL80211_BAND_5GHZ, data);
206
207 band = &phy->mt76->sband_5g.sband;
208 band->iftype_data = data;
209 band->n_iftype_data = n;
210
211 if (phy->mt76->cap.has_6ghz) {
212 data = phy->iftype[NL80211_BAND_6GHZ];
213 n = mt7921_init_he_caps(phy, NL80211_BAND_6GHZ, data);
214
215 band = &phy->mt76->sband_6g.sband;
216 band->iftype_data = data;
217 band->n_iftype_data = n;
218 }
219 }
220 }
221
__mt7921_start(struct mt792x_phy * phy)222 int __mt7921_start(struct mt792x_phy *phy)
223 {
224 struct mt76_phy *mphy = phy->mt76;
225 int err;
226
227 err = mt76_connac_mcu_set_mac_enable(mphy->dev, 0, true, false);
228 if (err)
229 return err;
230
231 err = mt76_connac_mcu_set_channel_domain(mphy);
232 if (err)
233 return err;
234
235 err = mt7921_mcu_set_chan_info(phy, MCU_EXT_CMD(SET_RX_PATH));
236 if (err)
237 return err;
238
239 err = mt7921_set_tx_sar_pwr(mphy->hw, NULL);
240 if (err)
241 return err;
242
243 mt792x_mac_reset_counters(phy);
244 set_bit(MT76_STATE_RUNNING, &mphy->state);
245
246 ieee80211_queue_delayed_work(mphy->hw, &mphy->mac_work,
247 MT792x_WATCHDOG_TIME);
248
249 return 0;
250 }
251 EXPORT_SYMBOL_GPL(__mt7921_start);
252
mt7921_start(struct ieee80211_hw * hw)253 static int mt7921_start(struct ieee80211_hw *hw)
254 {
255 struct mt792x_phy *phy = mt792x_hw_phy(hw);
256 int err;
257
258 mt792x_mutex_acquire(phy->dev);
259 err = __mt7921_start(phy);
260 mt792x_mutex_release(phy->dev);
261
262 return err;
263 }
264
mt7921_stop(struct ieee80211_hw * hw)265 void mt7921_stop(struct ieee80211_hw *hw)
266 {
267 struct mt792x_dev *dev = mt792x_hw_dev(hw);
268 struct mt792x_phy *phy = mt792x_hw_phy(hw);
269
270 cancel_delayed_work_sync(&phy->mt76->mac_work);
271
272 cancel_delayed_work_sync(&dev->pm.ps_work);
273 cancel_work_sync(&dev->pm.wake_work);
274 cancel_work_sync(&dev->reset_work);
275 mt76_connac_free_pending_tx_skbs(&dev->pm, NULL);
276
277 mt792x_mutex_acquire(dev);
278 clear_bit(MT76_STATE_RUNNING, &phy->mt76->state);
279 mt76_connac_mcu_set_mac_enable(&dev->mt76, 0, false, false);
280 mt792x_mutex_release(dev);
281 }
282 EXPORT_SYMBOL_GPL(mt7921_stop);
283
284 static int
mt7921_add_interface(struct ieee80211_hw * hw,struct ieee80211_vif * vif)285 mt7921_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
286 {
287 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
288 struct mt792x_dev *dev = mt792x_hw_dev(hw);
289 struct mt792x_phy *phy = mt792x_hw_phy(hw);
290 struct mt76_txq *mtxq;
291 int idx, ret = 0;
292
293 mt792x_mutex_acquire(dev);
294
295 mvif->mt76.idx = __ffs64(~dev->mt76.vif_mask);
296 if (mvif->mt76.idx >= MT792x_MAX_INTERFACES) {
297 ret = -ENOSPC;
298 goto out;
299 }
300
301 mvif->mt76.omac_idx = mvif->mt76.idx;
302 mvif->phy = phy;
303 mvif->mt76.band_idx = 0;
304 mvif->mt76.wmm_idx = mvif->mt76.idx % MT76_CONNAC_MAX_WMM_SETS;
305
306 ret = mt76_connac_mcu_uni_add_dev(&dev->mphy, vif, &mvif->sta.wcid,
307 true);
308 if (ret)
309 goto out;
310
311 dev->mt76.vif_mask |= BIT_ULL(mvif->mt76.idx);
312 phy->omac_mask |= BIT_ULL(mvif->mt76.omac_idx);
313
314 idx = MT792x_WTBL_RESERVED - mvif->mt76.idx;
315
316 INIT_LIST_HEAD(&mvif->sta.wcid.poll_list);
317 mvif->sta.wcid.idx = idx;
318 mvif->sta.wcid.phy_idx = mvif->mt76.band_idx;
319 mvif->sta.wcid.hw_key_idx = -1;
320 mvif->sta.wcid.tx_info |= MT_WCID_TX_INFO_SET;
321 mt76_wcid_init(&mvif->sta.wcid);
322
323 mt7921_mac_wtbl_update(dev, idx,
324 MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
325
326 ewma_rssi_init(&mvif->rssi);
327
328 rcu_assign_pointer(dev->mt76.wcid[idx], &mvif->sta.wcid);
329 if (vif->txq) {
330 mtxq = (struct mt76_txq *)vif->txq->drv_priv;
331 mtxq->wcid = idx;
332 }
333
334 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER;
335 out:
336 mt792x_mutex_release(dev);
337
338 return ret;
339 }
340
mt7921_roc_iter(void * priv,u8 * mac,struct ieee80211_vif * vif)341 static void mt7921_roc_iter(void *priv, u8 *mac,
342 struct ieee80211_vif *vif)
343 {
344 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
345 struct mt792x_phy *phy = priv;
346
347 mt7921_mcu_abort_roc(phy, mvif, phy->roc_token_id);
348 }
349
mt7921_roc_work(struct work_struct * work)350 void mt7921_roc_work(struct work_struct *work)
351 {
352 struct mt792x_phy *phy;
353
354 phy = (struct mt792x_phy *)container_of(work, struct mt792x_phy,
355 roc_work);
356
357 if (!test_and_clear_bit(MT76_STATE_ROC, &phy->mt76->state))
358 return;
359
360 mt792x_mutex_acquire(phy->dev);
361 ieee80211_iterate_active_interfaces(phy->mt76->hw,
362 IEEE80211_IFACE_ITER_RESUME_ALL,
363 mt7921_roc_iter, phy);
364 mt792x_mutex_release(phy->dev);
365 ieee80211_remain_on_channel_expired(phy->mt76->hw);
366 }
367
mt7921_abort_roc(struct mt792x_phy * phy,struct mt792x_vif * vif)368 static int mt7921_abort_roc(struct mt792x_phy *phy, struct mt792x_vif *vif)
369 {
370 int err = 0;
371
372 del_timer_sync(&phy->roc_timer);
373 cancel_work_sync(&phy->roc_work);
374
375 mt792x_mutex_acquire(phy->dev);
376 if (test_and_clear_bit(MT76_STATE_ROC, &phy->mt76->state))
377 err = mt7921_mcu_abort_roc(phy, vif, phy->roc_token_id);
378 mt792x_mutex_release(phy->dev);
379
380 return err;
381 }
382
mt7921_set_roc(struct mt792x_phy * phy,struct mt792x_vif * vif,struct ieee80211_channel * chan,int duration,enum mt7921_roc_req type)383 static int mt7921_set_roc(struct mt792x_phy *phy,
384 struct mt792x_vif *vif,
385 struct ieee80211_channel *chan,
386 int duration,
387 enum mt7921_roc_req type)
388 {
389 int err;
390
391 if (test_and_set_bit(MT76_STATE_ROC, &phy->mt76->state))
392 return -EBUSY;
393
394 phy->roc_grant = false;
395
396 err = mt7921_mcu_set_roc(phy, vif, chan, duration, type,
397 ++phy->roc_token_id);
398 if (err < 0) {
399 clear_bit(MT76_STATE_ROC, &phy->mt76->state);
400 goto out;
401 }
402
403 if (!wait_event_timeout(phy->roc_wait, phy->roc_grant, HZ)) {
404 mt7921_mcu_abort_roc(phy, vif, phy->roc_token_id);
405 clear_bit(MT76_STATE_ROC, &phy->mt76->state);
406 err = -ETIMEDOUT;
407 }
408
409 out:
410 return err;
411 }
412
mt7921_remain_on_channel(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_channel * chan,int duration,enum ieee80211_roc_type type)413 static int mt7921_remain_on_channel(struct ieee80211_hw *hw,
414 struct ieee80211_vif *vif,
415 struct ieee80211_channel *chan,
416 int duration,
417 enum ieee80211_roc_type type)
418 {
419 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
420 struct mt792x_phy *phy = mt792x_hw_phy(hw);
421 int err;
422
423 mt792x_mutex_acquire(phy->dev);
424 err = mt7921_set_roc(phy, mvif, chan, duration, MT7921_ROC_REQ_ROC);
425 mt792x_mutex_release(phy->dev);
426
427 return err;
428 }
429
mt7921_cancel_remain_on_channel(struct ieee80211_hw * hw,struct ieee80211_vif * vif)430 static int mt7921_cancel_remain_on_channel(struct ieee80211_hw *hw,
431 struct ieee80211_vif *vif)
432 {
433 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
434 struct mt792x_phy *phy = mt792x_hw_phy(hw);
435
436 return mt7921_abort_roc(phy, mvif);
437 }
438
mt7921_set_channel(struct mt792x_phy * phy)439 static int mt7921_set_channel(struct mt792x_phy *phy)
440 {
441 struct mt792x_dev *dev = phy->dev;
442 int ret;
443
444 cancel_delayed_work_sync(&phy->mt76->mac_work);
445
446 mt792x_mutex_acquire(dev);
447 set_bit(MT76_RESET, &phy->mt76->state);
448
449 mt76_set_channel(phy->mt76);
450
451 ret = mt7921_mcu_set_chan_info(phy, MCU_EXT_CMD(CHANNEL_SWITCH));
452 if (ret)
453 goto out;
454
455 mt792x_mac_set_timeing(phy);
456
457 mt792x_mac_reset_counters(phy);
458 phy->noise = 0;
459
460 out:
461 clear_bit(MT76_RESET, &phy->mt76->state);
462 mt792x_mutex_release(dev);
463
464 mt76_worker_schedule(&dev->mt76.tx_worker);
465 ieee80211_queue_delayed_work(phy->mt76->hw, &phy->mt76->mac_work,
466 MT792x_WATCHDOG_TIME);
467
468 return ret;
469 }
470
mt7921_set_key(struct ieee80211_hw * hw,enum set_key_cmd cmd,struct ieee80211_vif * vif,struct ieee80211_sta * sta,struct ieee80211_key_conf * key)471 static int mt7921_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
472 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
473 struct ieee80211_key_conf *key)
474 {
475 struct mt792x_dev *dev = mt792x_hw_dev(hw);
476 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
477 struct mt792x_sta *msta = sta ? (struct mt792x_sta *)sta->drv_priv :
478 &mvif->sta;
479 struct mt76_wcid *wcid = &msta->wcid;
480 u8 *wcid_keyidx = &wcid->hw_key_idx;
481 int idx = key->keyidx, err = 0;
482
483 /* The hardware does not support per-STA RX GTK, fallback
484 * to software mode for these.
485 */
486 if ((vif->type == NL80211_IFTYPE_ADHOC ||
487 vif->type == NL80211_IFTYPE_MESH_POINT) &&
488 (key->cipher == WLAN_CIPHER_SUITE_TKIP ||
489 key->cipher == WLAN_CIPHER_SUITE_CCMP) &&
490 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE))
491 return -EOPNOTSUPP;
492
493 /* fall back to sw encryption for unsupported ciphers */
494 switch (key->cipher) {
495 case WLAN_CIPHER_SUITE_AES_CMAC:
496 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIE;
497 wcid_keyidx = &wcid->hw_key_idx2;
498 break;
499 case WLAN_CIPHER_SUITE_WEP40:
500 case WLAN_CIPHER_SUITE_WEP104:
501 if (!mvif->wep_sta)
502 return -EOPNOTSUPP;
503 break;
504 case WLAN_CIPHER_SUITE_TKIP:
505 case WLAN_CIPHER_SUITE_CCMP:
506 case WLAN_CIPHER_SUITE_CCMP_256:
507 case WLAN_CIPHER_SUITE_GCMP:
508 case WLAN_CIPHER_SUITE_GCMP_256:
509 case WLAN_CIPHER_SUITE_SMS4:
510 break;
511 default:
512 return -EOPNOTSUPP;
513 }
514
515 mt792x_mutex_acquire(dev);
516
517 if (cmd == SET_KEY) {
518 *wcid_keyidx = idx;
519 } else {
520 if (idx == *wcid_keyidx)
521 *wcid_keyidx = -1;
522
523 /* For security issue we don't trigger the key deletion when
524 * reassociating. But we should trigger the deletion process
525 * to avoid using incorrect cipher after disconnection,
526 */
527 if (vif->type != NL80211_IFTYPE_STATION || vif->cfg.assoc)
528 goto out;
529 }
530
531 mt76_wcid_key_setup(&dev->mt76, wcid, key);
532 err = mt76_connac_mcu_add_key(&dev->mt76, vif, &msta->bip,
533 key, MCU_UNI_CMD(STA_REC_UPDATE),
534 &msta->wcid, cmd);
535 if (err)
536 goto out;
537
538 if (key->cipher == WLAN_CIPHER_SUITE_WEP104 ||
539 key->cipher == WLAN_CIPHER_SUITE_WEP40)
540 err = mt76_connac_mcu_add_key(&dev->mt76, vif,
541 &mvif->wep_sta->bip,
542 key, MCU_UNI_CMD(STA_REC_UPDATE),
543 &mvif->wep_sta->wcid, cmd);
544 out:
545 mt792x_mutex_release(dev);
546
547 return err;
548 }
549
550 static void
mt7921_pm_interface_iter(void * priv,u8 * mac,struct ieee80211_vif * vif)551 mt7921_pm_interface_iter(void *priv, u8 *mac, struct ieee80211_vif *vif)
552 {
553 struct mt792x_dev *dev = priv;
554 struct ieee80211_hw *hw = mt76_hw(dev);
555 bool pm_enable = dev->pm.enable;
556 int err;
557
558 err = mt7921_mcu_set_beacon_filter(dev, vif, pm_enable);
559 if (err < 0)
560 return;
561
562 if (pm_enable) {
563 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER;
564 ieee80211_hw_set(hw, CONNECTION_MONITOR);
565 } else {
566 vif->driver_flags &= ~IEEE80211_VIF_BEACON_FILTER;
567 __clear_bit(IEEE80211_HW_CONNECTION_MONITOR, hw->flags);
568 }
569 }
570
571 static void
mt7921_sniffer_interface_iter(void * priv,u8 * mac,struct ieee80211_vif * vif)572 mt7921_sniffer_interface_iter(void *priv, u8 *mac, struct ieee80211_vif *vif)
573 {
574 struct mt792x_dev *dev = priv;
575 struct ieee80211_hw *hw = mt76_hw(dev);
576 struct mt76_connac_pm *pm = &dev->pm;
577 bool monitor = !!(hw->conf.flags & IEEE80211_CONF_MONITOR);
578
579 mt7921_mcu_set_sniffer(dev, vif, monitor);
580 pm->enable = pm->enable_user && !monitor;
581 pm->ds_enable = pm->ds_enable_user && !monitor;
582
583 mt76_connac_mcu_set_deep_sleep(&dev->mt76, pm->ds_enable);
584
585 if (monitor)
586 mt7921_mcu_set_beacon_filter(dev, vif, false);
587 }
588
mt7921_set_runtime_pm(struct mt792x_dev * dev)589 void mt7921_set_runtime_pm(struct mt792x_dev *dev)
590 {
591 struct ieee80211_hw *hw = mt76_hw(dev);
592 struct mt76_connac_pm *pm = &dev->pm;
593 bool monitor = !!(hw->conf.flags & IEEE80211_CONF_MONITOR);
594
595 pm->enable = pm->enable_user && !monitor;
596 ieee80211_iterate_active_interfaces(hw,
597 IEEE80211_IFACE_ITER_RESUME_ALL,
598 mt7921_pm_interface_iter, dev);
599 pm->ds_enable = pm->ds_enable_user && !monitor;
600 mt76_connac_mcu_set_deep_sleep(&dev->mt76, pm->ds_enable);
601 }
602
mt7921_config(struct ieee80211_hw * hw,u32 changed)603 static int mt7921_config(struct ieee80211_hw *hw, u32 changed)
604 {
605 struct mt792x_dev *dev = mt792x_hw_dev(hw);
606 struct mt792x_phy *phy = mt792x_hw_phy(hw);
607 int ret = 0;
608
609 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
610 ieee80211_stop_queues(hw);
611 ret = mt7921_set_channel(phy);
612 if (ret)
613 return ret;
614 ieee80211_wake_queues(hw);
615 }
616
617 mt792x_mutex_acquire(dev);
618
619 if (changed & IEEE80211_CONF_CHANGE_POWER) {
620 ret = mt7921_set_tx_sar_pwr(hw, NULL);
621 if (ret)
622 goto out;
623 }
624
625 if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
626 ieee80211_iterate_active_interfaces(hw,
627 IEEE80211_IFACE_ITER_RESUME_ALL,
628 mt7921_sniffer_interface_iter, dev);
629 }
630
631 out:
632 mt792x_mutex_release(dev);
633
634 return ret;
635 }
636
mt7921_configure_filter(struct ieee80211_hw * hw,unsigned int changed_flags,unsigned int * total_flags,u64 multicast)637 static void mt7921_configure_filter(struct ieee80211_hw *hw,
638 unsigned int changed_flags,
639 unsigned int *total_flags,
640 u64 multicast)
641 {
642 #define MT7921_FILTER_FCSFAIL BIT(2)
643 #define MT7921_FILTER_CONTROL BIT(5)
644 #define MT7921_FILTER_OTHER_BSS BIT(6)
645 #define MT7921_FILTER_ENABLE BIT(31)
646
647 struct mt792x_dev *dev = mt792x_hw_dev(hw);
648 u32 flags = MT7921_FILTER_ENABLE;
649
650 #define MT7921_FILTER(_fif, _type) do { \
651 if (*total_flags & (_fif)) \
652 flags |= MT7921_FILTER_##_type; \
653 } while (0)
654
655 MT7921_FILTER(FIF_FCSFAIL, FCSFAIL);
656 MT7921_FILTER(FIF_CONTROL, CONTROL);
657 MT7921_FILTER(FIF_OTHER_BSS, OTHER_BSS);
658
659 mt792x_mutex_acquire(dev);
660 mt7921_mcu_set_rxfilter(dev, flags, 0, 0);
661 mt792x_mutex_release(dev);
662
663 *total_flags &= (FIF_OTHER_BSS | FIF_FCSFAIL | FIF_CONTROL);
664 }
665
mt7921_bss_info_changed(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * info,u64 changed)666 static void mt7921_bss_info_changed(struct ieee80211_hw *hw,
667 struct ieee80211_vif *vif,
668 struct ieee80211_bss_conf *info,
669 u64 changed)
670 {
671 struct mt792x_phy *phy = mt792x_hw_phy(hw);
672 struct mt792x_dev *dev = mt792x_hw_dev(hw);
673
674 mt792x_mutex_acquire(dev);
675
676 if (changed & BSS_CHANGED_ERP_SLOT) {
677 int slottime = info->use_short_slot ? 9 : 20;
678
679 if (slottime != phy->slottime) {
680 phy->slottime = slottime;
681 mt792x_mac_set_timeing(phy);
682 }
683 }
684
685 if (changed & (BSS_CHANGED_BEACON |
686 BSS_CHANGED_BEACON_ENABLED))
687 mt7921_mcu_uni_add_beacon_offload(dev, hw, vif,
688 info->enable_beacon);
689
690 /* ensure that enable txcmd_mode after bss_info */
691 if (changed & (BSS_CHANGED_QOS | BSS_CHANGED_BEACON_ENABLED))
692 mt7921_mcu_set_tx(dev, vif);
693
694 if (changed & BSS_CHANGED_PS)
695 mt7921_mcu_uni_bss_ps(dev, vif);
696
697 if (changed & BSS_CHANGED_ASSOC) {
698 mt7921_mcu_sta_update(dev, NULL, vif, true,
699 MT76_STA_INFO_STATE_ASSOC);
700 mt7921_mcu_set_beacon_filter(dev, vif, vif->cfg.assoc);
701 }
702
703 if (changed & BSS_CHANGED_ARP_FILTER) {
704 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
705
706 mt76_connac_mcu_update_arp_filter(&dev->mt76, &mvif->mt76,
707 info);
708 }
709
710 mt792x_mutex_release(dev);
711 }
712
mt7921_mac_sta_add(struct mt76_dev * mdev,struct ieee80211_vif * vif,struct ieee80211_sta * sta)713 int mt7921_mac_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif,
714 struct ieee80211_sta *sta)
715 {
716 struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76);
717 struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv;
718 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
719 int ret, idx;
720
721 idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT792x_WTBL_STA - 1);
722 if (idx < 0)
723 return -ENOSPC;
724
725 INIT_LIST_HEAD(&msta->wcid.poll_list);
726 msta->vif = mvif;
727 msta->wcid.sta = 1;
728 msta->wcid.idx = idx;
729 msta->wcid.phy_idx = mvif->mt76.band_idx;
730 msta->wcid.tx_info |= MT_WCID_TX_INFO_SET;
731 msta->last_txs = jiffies;
732
733 ret = mt76_connac_pm_wake(&dev->mphy, &dev->pm);
734 if (ret)
735 return ret;
736
737 if (vif->type == NL80211_IFTYPE_STATION)
738 mvif->wep_sta = msta;
739
740 mt7921_mac_wtbl_update(dev, idx,
741 MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
742
743 ret = mt7921_mcu_sta_update(dev, sta, vif, true,
744 MT76_STA_INFO_STATE_NONE);
745 if (ret)
746 return ret;
747
748 mt76_connac_power_save_sched(&dev->mphy, &dev->pm);
749
750 return 0;
751 }
752 EXPORT_SYMBOL_GPL(mt7921_mac_sta_add);
753
mt7921_mac_sta_assoc(struct mt76_dev * mdev,struct ieee80211_vif * vif,struct ieee80211_sta * sta)754 void mt7921_mac_sta_assoc(struct mt76_dev *mdev, struct ieee80211_vif *vif,
755 struct ieee80211_sta *sta)
756 {
757 struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76);
758 struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv;
759 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
760
761 mt792x_mutex_acquire(dev);
762
763 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls)
764 mt76_connac_mcu_uni_add_bss(&dev->mphy, vif, &mvif->sta.wcid,
765 true, mvif->mt76.ctx);
766
767 ewma_avg_signal_init(&msta->avg_ack_signal);
768
769 mt7921_mac_wtbl_update(dev, msta->wcid.idx,
770 MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
771 memset(msta->airtime_ac, 0, sizeof(msta->airtime_ac));
772
773 mt7921_mcu_sta_update(dev, sta, vif, true, MT76_STA_INFO_STATE_ASSOC);
774
775 mt792x_mutex_release(dev);
776 }
777 EXPORT_SYMBOL_GPL(mt7921_mac_sta_assoc);
778
mt7921_mac_sta_remove(struct mt76_dev * mdev,struct ieee80211_vif * vif,struct ieee80211_sta * sta)779 void mt7921_mac_sta_remove(struct mt76_dev *mdev, struct ieee80211_vif *vif,
780 struct ieee80211_sta *sta)
781 {
782 struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76);
783 struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv;
784
785 mt76_connac_free_pending_tx_skbs(&dev->pm, &msta->wcid);
786 mt76_connac_pm_wake(&dev->mphy, &dev->pm);
787
788 mt7921_mcu_sta_update(dev, sta, vif, false, MT76_STA_INFO_STATE_NONE);
789 mt7921_mac_wtbl_update(dev, msta->wcid.idx,
790 MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
791
792 if (vif->type == NL80211_IFTYPE_STATION) {
793 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
794
795 mvif->wep_sta = NULL;
796 ewma_rssi_init(&mvif->rssi);
797 if (!sta->tdls)
798 mt76_connac_mcu_uni_add_bss(&dev->mphy, vif,
799 &mvif->sta.wcid, false,
800 mvif->mt76.ctx);
801 }
802
803 spin_lock_bh(&dev->mt76.sta_poll_lock);
804 if (!list_empty(&msta->wcid.poll_list))
805 list_del_init(&msta->wcid.poll_list);
806 spin_unlock_bh(&dev->mt76.sta_poll_lock);
807
808 mt76_connac_power_save_sched(&dev->mphy, &dev->pm);
809 }
810 EXPORT_SYMBOL_GPL(mt7921_mac_sta_remove);
811
mt7921_set_rts_threshold(struct ieee80211_hw * hw,u32 val)812 static int mt7921_set_rts_threshold(struct ieee80211_hw *hw, u32 val)
813 {
814 struct mt792x_dev *dev = mt792x_hw_dev(hw);
815
816 mt792x_mutex_acquire(dev);
817 mt76_connac_mcu_set_rts_thresh(&dev->mt76, val, 0);
818 mt792x_mutex_release(dev);
819
820 return 0;
821 }
822
823 static int
mt7921_ampdu_action(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_ampdu_params * params)824 mt7921_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
825 struct ieee80211_ampdu_params *params)
826 {
827 enum ieee80211_ampdu_mlme_action action = params->action;
828 struct mt792x_dev *dev = mt792x_hw_dev(hw);
829 struct ieee80211_sta *sta = params->sta;
830 struct ieee80211_txq *txq = sta->txq[params->tid];
831 struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv;
832 u16 tid = params->tid;
833 u16 ssn = params->ssn;
834 struct mt76_txq *mtxq;
835 int ret = 0;
836
837 if (!txq)
838 return -EINVAL;
839
840 mtxq = (struct mt76_txq *)txq->drv_priv;
841
842 mt792x_mutex_acquire(dev);
843 switch (action) {
844 case IEEE80211_AMPDU_RX_START:
845 mt76_rx_aggr_start(&dev->mt76, &msta->wcid, tid, ssn,
846 params->buf_size);
847 mt7921_mcu_uni_rx_ba(dev, params, true);
848 break;
849 case IEEE80211_AMPDU_RX_STOP:
850 mt76_rx_aggr_stop(&dev->mt76, &msta->wcid, tid);
851 mt7921_mcu_uni_rx_ba(dev, params, false);
852 break;
853 case IEEE80211_AMPDU_TX_OPERATIONAL:
854 mtxq->aggr = true;
855 mtxq->send_bar = false;
856 mt7921_mcu_uni_tx_ba(dev, params, true);
857 break;
858 case IEEE80211_AMPDU_TX_STOP_FLUSH:
859 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
860 mtxq->aggr = false;
861 clear_bit(tid, &msta->wcid.ampdu_state);
862 mt7921_mcu_uni_tx_ba(dev, params, false);
863 break;
864 case IEEE80211_AMPDU_TX_START:
865 set_bit(tid, &msta->wcid.ampdu_state);
866 ret = IEEE80211_AMPDU_TX_START_IMMEDIATE;
867 break;
868 case IEEE80211_AMPDU_TX_STOP_CONT:
869 mtxq->aggr = false;
870 clear_bit(tid, &msta->wcid.ampdu_state);
871 mt7921_mcu_uni_tx_ba(dev, params, false);
872 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
873 break;
874 }
875 mt792x_mutex_release(dev);
876
877 return ret;
878 }
879
mt7921_sta_state(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,enum ieee80211_sta_state old_state,enum ieee80211_sta_state new_state)880 static int mt7921_sta_state(struct ieee80211_hw *hw,
881 struct ieee80211_vif *vif,
882 struct ieee80211_sta *sta,
883 enum ieee80211_sta_state old_state,
884 enum ieee80211_sta_state new_state)
885 {
886 struct mt792x_dev *dev = mt792x_hw_dev(hw);
887
888 if (dev->pm.ds_enable) {
889 mt792x_mutex_acquire(dev);
890 mt76_connac_sta_state_dp(&dev->mt76, old_state, new_state);
891 mt792x_mutex_release(dev);
892 }
893
894 return mt76_sta_state(hw, vif, sta, old_state, new_state);
895 }
896
mt7921_scan_work(struct work_struct * work)897 void mt7921_scan_work(struct work_struct *work)
898 {
899 struct mt792x_phy *phy;
900
901 phy = (struct mt792x_phy *)container_of(work, struct mt792x_phy,
902 scan_work.work);
903
904 while (true) {
905 struct mt76_connac2_mcu_rxd *rxd;
906 struct sk_buff *skb;
907
908 spin_lock_bh(&phy->dev->mt76.lock);
909 skb = __skb_dequeue(&phy->scan_event_list);
910 spin_unlock_bh(&phy->dev->mt76.lock);
911
912 if (!skb)
913 break;
914
915 rxd = (struct mt76_connac2_mcu_rxd *)skb->data;
916 if (rxd->eid == MCU_EVENT_SCHED_SCAN_DONE) {
917 ieee80211_sched_scan_results(phy->mt76->hw);
918 } else if (test_and_clear_bit(MT76_HW_SCANNING,
919 &phy->mt76->state)) {
920 struct cfg80211_scan_info info = {
921 .aborted = false,
922 };
923
924 ieee80211_scan_completed(phy->mt76->hw, &info);
925 }
926 dev_kfree_skb(skb);
927 }
928 }
929
930 static int
mt7921_hw_scan(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_scan_request * req)931 mt7921_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
932 struct ieee80211_scan_request *req)
933 {
934 struct mt792x_dev *dev = mt792x_hw_dev(hw);
935 struct mt76_phy *mphy = hw->priv;
936 int err;
937
938 mt792x_mutex_acquire(dev);
939 err = mt76_connac_mcu_hw_scan(mphy, vif, req);
940 mt792x_mutex_release(dev);
941
942 return err;
943 }
944
945 static void
mt7921_cancel_hw_scan(struct ieee80211_hw * hw,struct ieee80211_vif * vif)946 mt7921_cancel_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
947 {
948 struct mt792x_dev *dev = mt792x_hw_dev(hw);
949 struct mt76_phy *mphy = hw->priv;
950
951 mt792x_mutex_acquire(dev);
952 mt76_connac_mcu_cancel_hw_scan(mphy, vif);
953 mt792x_mutex_release(dev);
954 }
955
956 static int
mt7921_start_sched_scan(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct cfg80211_sched_scan_request * req,struct ieee80211_scan_ies * ies)957 mt7921_start_sched_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
958 struct cfg80211_sched_scan_request *req,
959 struct ieee80211_scan_ies *ies)
960 {
961 struct mt792x_dev *dev = mt792x_hw_dev(hw);
962 struct mt76_phy *mphy = hw->priv;
963 int err;
964
965 mt792x_mutex_acquire(dev);
966
967 err = mt76_connac_mcu_sched_scan_req(mphy, vif, req);
968 if (err < 0)
969 goto out;
970
971 err = mt76_connac_mcu_sched_scan_enable(mphy, vif, true);
972 out:
973 mt792x_mutex_release(dev);
974
975 return err;
976 }
977
978 static int
mt7921_stop_sched_scan(struct ieee80211_hw * hw,struct ieee80211_vif * vif)979 mt7921_stop_sched_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
980 {
981 struct mt792x_dev *dev = mt792x_hw_dev(hw);
982 struct mt76_phy *mphy = hw->priv;
983 int err;
984
985 mt792x_mutex_acquire(dev);
986 err = mt76_connac_mcu_sched_scan_enable(mphy, vif, false);
987 mt792x_mutex_release(dev);
988
989 return err;
990 }
991
992 static int
mt7921_set_antenna(struct ieee80211_hw * hw,u32 tx_ant,u32 rx_ant)993 mt7921_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant)
994 {
995 struct mt792x_dev *dev = mt792x_hw_dev(hw);
996 struct mt792x_phy *phy = mt792x_hw_phy(hw);
997 int max_nss = hweight8(hw->wiphy->available_antennas_tx);
998
999 if (!tx_ant || tx_ant != rx_ant || ffs(tx_ant) > max_nss)
1000 return -EINVAL;
1001
1002 if ((BIT(hweight8(tx_ant)) - 1) != tx_ant)
1003 return -EINVAL;
1004
1005 mt792x_mutex_acquire(dev);
1006
1007 phy->mt76->antenna_mask = tx_ant;
1008 phy->mt76->chainmask = tx_ant;
1009
1010 mt76_set_stream_caps(phy->mt76, true);
1011 mt7921_set_stream_he_caps(phy);
1012
1013 mt792x_mutex_release(dev);
1014
1015 return 0;
1016 }
1017
1018 #ifdef CONFIG_PM
mt7921_suspend(struct ieee80211_hw * hw,struct cfg80211_wowlan * wowlan)1019 static int mt7921_suspend(struct ieee80211_hw *hw,
1020 struct cfg80211_wowlan *wowlan)
1021 {
1022 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1023 struct mt792x_phy *phy = mt792x_hw_phy(hw);
1024
1025 cancel_delayed_work_sync(&phy->scan_work);
1026 cancel_delayed_work_sync(&phy->mt76->mac_work);
1027
1028 cancel_delayed_work_sync(&dev->pm.ps_work);
1029 mt76_connac_free_pending_tx_skbs(&dev->pm, NULL);
1030
1031 mt792x_mutex_acquire(dev);
1032
1033 clear_bit(MT76_STATE_RUNNING, &phy->mt76->state);
1034 ieee80211_iterate_active_interfaces(hw,
1035 IEEE80211_IFACE_ITER_RESUME_ALL,
1036 mt7921_mcu_set_suspend_iter,
1037 &dev->mphy);
1038
1039 mt792x_mutex_release(dev);
1040
1041 return 0;
1042 }
1043
mt7921_resume(struct ieee80211_hw * hw)1044 static int mt7921_resume(struct ieee80211_hw *hw)
1045 {
1046 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1047 struct mt792x_phy *phy = mt792x_hw_phy(hw);
1048
1049 mt792x_mutex_acquire(dev);
1050
1051 set_bit(MT76_STATE_RUNNING, &phy->mt76->state);
1052 ieee80211_iterate_active_interfaces(hw,
1053 IEEE80211_IFACE_ITER_RESUME_ALL,
1054 mt76_connac_mcu_set_suspend_iter,
1055 &dev->mphy);
1056
1057 ieee80211_queue_delayed_work(hw, &phy->mt76->mac_work,
1058 MT792x_WATCHDOG_TIME);
1059
1060 mt792x_mutex_release(dev);
1061
1062 return 0;
1063 }
1064
mt7921_set_rekey_data(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct cfg80211_gtk_rekey_data * data)1065 static void mt7921_set_rekey_data(struct ieee80211_hw *hw,
1066 struct ieee80211_vif *vif,
1067 struct cfg80211_gtk_rekey_data *data)
1068 {
1069 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1070
1071 mt792x_mutex_acquire(dev);
1072 mt76_connac_mcu_update_gtk_rekey(hw, vif, data);
1073 mt792x_mutex_release(dev);
1074 }
1075 #endif /* CONFIG_PM */
1076
mt7921_sta_set_decap_offload(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,bool enabled)1077 static void mt7921_sta_set_decap_offload(struct ieee80211_hw *hw,
1078 struct ieee80211_vif *vif,
1079 struct ieee80211_sta *sta,
1080 bool enabled)
1081 {
1082 struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv;
1083 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1084
1085 mt792x_mutex_acquire(dev);
1086
1087 if (enabled)
1088 set_bit(MT_WCID_FLAG_HDR_TRANS, &msta->wcid.flags);
1089 else
1090 clear_bit(MT_WCID_FLAG_HDR_TRANS, &msta->wcid.flags);
1091
1092 mt76_connac_mcu_sta_update_hdr_trans(&dev->mt76, vif, &msta->wcid,
1093 MCU_UNI_CMD(STA_REC_UPDATE));
1094
1095 mt792x_mutex_release(dev);
1096 }
1097
1098 #if IS_ENABLED(CONFIG_IPV6)
mt7921_ipv6_addr_change(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct inet6_dev * idev)1099 static void mt7921_ipv6_addr_change(struct ieee80211_hw *hw,
1100 struct ieee80211_vif *vif,
1101 struct inet6_dev *idev)
1102 {
1103 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
1104 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1105 struct inet6_ifaddr *ifa;
1106 struct in6_addr ns_addrs[IEEE80211_BSS_ARP_ADDR_LIST_LEN];
1107 struct sk_buff *skb;
1108 u8 i, idx = 0;
1109
1110 struct {
1111 struct {
1112 u8 bss_idx;
1113 u8 pad[3];
1114 } __packed hdr;
1115 struct mt76_connac_arpns_tlv arpns;
1116 } req_hdr = {
1117 .hdr = {
1118 .bss_idx = mvif->mt76.idx,
1119 },
1120 .arpns = {
1121 .tag = cpu_to_le16(UNI_OFFLOAD_OFFLOAD_ND),
1122 .mode = 2, /* update */
1123 .option = 1, /* update only */
1124 },
1125 };
1126
1127 read_lock_bh(&idev->lock);
1128 list_for_each_entry(ifa, &idev->addr_list, if_list) {
1129 if (ifa->flags & IFA_F_TENTATIVE)
1130 continue;
1131 ns_addrs[idx] = ifa->addr;
1132 if (++idx >= IEEE80211_BSS_ARP_ADDR_LIST_LEN)
1133 break;
1134 }
1135 read_unlock_bh(&idev->lock);
1136
1137 if (!idx)
1138 return;
1139
1140 req_hdr.arpns.ips_num = idx;
1141 req_hdr.arpns.len = cpu_to_le16(sizeof(struct mt76_connac_arpns_tlv)
1142 + idx * sizeof(struct in6_addr));
1143 skb = __mt76_mcu_msg_alloc(&dev->mt76, &req_hdr,
1144 sizeof(req_hdr) + idx * sizeof(struct in6_addr),
1145 sizeof(req_hdr), GFP_ATOMIC);
1146 if (!skb)
1147 return;
1148
1149 for (i = 0; i < idx; i++)
1150 skb_put_data(skb, &ns_addrs[i].in6_u, sizeof(struct in6_addr));
1151
1152 skb_queue_tail(&dev->ipv6_ns_list, skb);
1153
1154 ieee80211_queue_work(dev->mt76.hw, &dev->ipv6_ns_work);
1155 }
1156 #endif
1157
mt7921_set_tx_sar_pwr(struct ieee80211_hw * hw,const struct cfg80211_sar_specs * sar)1158 int mt7921_set_tx_sar_pwr(struct ieee80211_hw *hw,
1159 const struct cfg80211_sar_specs *sar)
1160 {
1161 struct mt76_phy *mphy = hw->priv;
1162
1163 if (sar) {
1164 int err = mt76_init_sar_power(hw, sar);
1165
1166 if (err)
1167 return err;
1168 }
1169 mt792x_init_acpi_sar_power(mt792x_hw_phy(hw), !sar);
1170
1171 return mt76_connac_mcu_set_rate_txpower(mphy);
1172 }
1173
mt7921_set_sar_specs(struct ieee80211_hw * hw,const struct cfg80211_sar_specs * sar)1174 static int mt7921_set_sar_specs(struct ieee80211_hw *hw,
1175 const struct cfg80211_sar_specs *sar)
1176 {
1177 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1178 int err;
1179
1180 mt792x_mutex_acquire(dev);
1181 err = mt7921_mcu_set_clc(dev, dev->mt76.alpha2,
1182 dev->country_ie_env);
1183 if (err < 0)
1184 goto out;
1185
1186 err = mt7921_set_tx_sar_pwr(hw, sar);
1187 out:
1188 mt792x_mutex_release(dev);
1189
1190 return err;
1191 }
1192
1193 static void
mt7921_channel_switch_beacon(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct cfg80211_chan_def * chandef)1194 mt7921_channel_switch_beacon(struct ieee80211_hw *hw,
1195 struct ieee80211_vif *vif,
1196 struct cfg80211_chan_def *chandef)
1197 {
1198 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1199
1200 mt792x_mutex_acquire(dev);
1201 mt7921_mcu_uni_add_beacon_offload(dev, hw, vif, true);
1202 mt792x_mutex_release(dev);
1203 }
1204
1205 static int
mt7921_start_ap(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf)1206 mt7921_start_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1207 struct ieee80211_bss_conf *link_conf)
1208 {
1209 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
1210 struct mt792x_phy *phy = mt792x_hw_phy(hw);
1211 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1212 int err;
1213
1214 mt792x_mutex_acquire(dev);
1215
1216 err = mt76_connac_mcu_uni_add_bss(phy->mt76, vif, &mvif->sta.wcid,
1217 true, mvif->mt76.ctx);
1218 if (err)
1219 goto out;
1220
1221 err = mt7921_mcu_set_bss_pm(dev, vif, true);
1222 if (err)
1223 goto out;
1224
1225 err = mt7921_mcu_sta_update(dev, NULL, vif, true,
1226 MT76_STA_INFO_STATE_NONE);
1227 out:
1228 mt792x_mutex_release(dev);
1229
1230 return err;
1231 }
1232
1233 static void
mt7921_stop_ap(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf)1234 mt7921_stop_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1235 struct ieee80211_bss_conf *link_conf)
1236 {
1237 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
1238 struct mt792x_phy *phy = mt792x_hw_phy(hw);
1239 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1240 int err;
1241
1242 mt792x_mutex_acquire(dev);
1243
1244 err = mt7921_mcu_set_bss_pm(dev, vif, false);
1245 if (err)
1246 goto out;
1247
1248 mt76_connac_mcu_uni_add_bss(phy->mt76, vif, &mvif->sta.wcid, false,
1249 mvif->mt76.ctx);
1250
1251 out:
1252 mt792x_mutex_release(dev);
1253 }
1254
1255 static int
mt7921_add_chanctx(struct ieee80211_hw * hw,struct ieee80211_chanctx_conf * ctx)1256 mt7921_add_chanctx(struct ieee80211_hw *hw,
1257 struct ieee80211_chanctx_conf *ctx)
1258 {
1259 return 0;
1260 }
1261
1262 static void
mt7921_remove_chanctx(struct ieee80211_hw * hw,struct ieee80211_chanctx_conf * ctx)1263 mt7921_remove_chanctx(struct ieee80211_hw *hw,
1264 struct ieee80211_chanctx_conf *ctx)
1265 {
1266 }
1267
mt7921_ctx_iter(void * priv,u8 * mac,struct ieee80211_vif * vif)1268 static void mt7921_ctx_iter(void *priv, u8 *mac,
1269 struct ieee80211_vif *vif)
1270 {
1271 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
1272 struct ieee80211_chanctx_conf *ctx = priv;
1273
1274 if (ctx != mvif->mt76.ctx)
1275 return;
1276
1277 if (vif->type == NL80211_IFTYPE_MONITOR)
1278 mt7921_mcu_config_sniffer(mvif, ctx);
1279 else
1280 mt76_connac_mcu_uni_set_chctx(mvif->phy->mt76, &mvif->mt76, ctx);
1281 }
1282
1283 static void
mt7921_change_chanctx(struct ieee80211_hw * hw,struct ieee80211_chanctx_conf * ctx,u32 changed)1284 mt7921_change_chanctx(struct ieee80211_hw *hw,
1285 struct ieee80211_chanctx_conf *ctx,
1286 u32 changed)
1287 {
1288 struct mt792x_phy *phy = mt792x_hw_phy(hw);
1289
1290 mt792x_mutex_acquire(phy->dev);
1291 ieee80211_iterate_active_interfaces(phy->mt76->hw,
1292 IEEE80211_IFACE_ITER_ACTIVE,
1293 mt7921_ctx_iter, ctx);
1294 mt792x_mutex_release(phy->dev);
1295 }
1296
mt7921_mgd_prepare_tx(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_prep_tx_info * info)1297 static void mt7921_mgd_prepare_tx(struct ieee80211_hw *hw,
1298 struct ieee80211_vif *vif,
1299 struct ieee80211_prep_tx_info *info)
1300 {
1301 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
1302 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1303 u16 duration = info->duration ? info->duration :
1304 jiffies_to_msecs(HZ);
1305
1306 mt792x_mutex_acquire(dev);
1307 mt7921_set_roc(mvif->phy, mvif, mvif->mt76.ctx->def.chan, duration,
1308 MT7921_ROC_REQ_JOIN);
1309 mt792x_mutex_release(dev);
1310 }
1311
mt7921_mgd_complete_tx(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_prep_tx_info * info)1312 static void mt7921_mgd_complete_tx(struct ieee80211_hw *hw,
1313 struct ieee80211_vif *vif,
1314 struct ieee80211_prep_tx_info *info)
1315 {
1316 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
1317
1318 mt7921_abort_roc(mvif->phy, mvif);
1319 }
1320
1321 const struct ieee80211_ops mt7921_ops = {
1322 .tx = mt792x_tx,
1323 .start = mt7921_start,
1324 .stop = mt7921_stop,
1325 .add_interface = mt7921_add_interface,
1326 .remove_interface = mt792x_remove_interface,
1327 .config = mt7921_config,
1328 .conf_tx = mt792x_conf_tx,
1329 .configure_filter = mt7921_configure_filter,
1330 .bss_info_changed = mt7921_bss_info_changed,
1331 .start_ap = mt7921_start_ap,
1332 .stop_ap = mt7921_stop_ap,
1333 .sta_state = mt7921_sta_state,
1334 .sta_pre_rcu_remove = mt76_sta_pre_rcu_remove,
1335 .set_key = mt7921_set_key,
1336 .sta_set_decap_offload = mt7921_sta_set_decap_offload,
1337 #if IS_ENABLED(CONFIG_IPV6)
1338 .ipv6_addr_change = mt7921_ipv6_addr_change,
1339 #endif /* CONFIG_IPV6 */
1340 .ampdu_action = mt7921_ampdu_action,
1341 .set_rts_threshold = mt7921_set_rts_threshold,
1342 .wake_tx_queue = mt76_wake_tx_queue,
1343 .release_buffered_frames = mt76_release_buffered_frames,
1344 .channel_switch_beacon = mt7921_channel_switch_beacon,
1345 .get_txpower = mt76_get_txpower,
1346 .get_stats = mt792x_get_stats,
1347 .get_et_sset_count = mt792x_get_et_sset_count,
1348 .get_et_strings = mt792x_get_et_strings,
1349 .get_et_stats = mt792x_get_et_stats,
1350 .get_tsf = mt792x_get_tsf,
1351 .set_tsf = mt792x_set_tsf,
1352 .get_survey = mt76_get_survey,
1353 .get_antenna = mt76_get_antenna,
1354 .set_antenna = mt7921_set_antenna,
1355 .set_coverage_class = mt792x_set_coverage_class,
1356 .hw_scan = mt7921_hw_scan,
1357 .cancel_hw_scan = mt7921_cancel_hw_scan,
1358 .sta_statistics = mt792x_sta_statistics,
1359 .sched_scan_start = mt7921_start_sched_scan,
1360 .sched_scan_stop = mt7921_stop_sched_scan,
1361 CFG80211_TESTMODE_CMD(mt7921_testmode_cmd)
1362 CFG80211_TESTMODE_DUMP(mt7921_testmode_dump)
1363 #ifdef CONFIG_PM
1364 .suspend = mt7921_suspend,
1365 .resume = mt7921_resume,
1366 .set_wakeup = mt792x_set_wakeup,
1367 .set_rekey_data = mt7921_set_rekey_data,
1368 #endif /* CONFIG_PM */
1369 .flush = mt792x_flush,
1370 .set_sar_specs = mt7921_set_sar_specs,
1371 .remain_on_channel = mt7921_remain_on_channel,
1372 .cancel_remain_on_channel = mt7921_cancel_remain_on_channel,
1373 .add_chanctx = mt7921_add_chanctx,
1374 .remove_chanctx = mt7921_remove_chanctx,
1375 .change_chanctx = mt7921_change_chanctx,
1376 .assign_vif_chanctx = mt792x_assign_vif_chanctx,
1377 .unassign_vif_chanctx = mt792x_unassign_vif_chanctx,
1378 .mgd_prepare_tx = mt7921_mgd_prepare_tx,
1379 .mgd_complete_tx = mt7921_mgd_complete_tx,
1380 };
1381 EXPORT_SYMBOL_GPL(mt7921_ops);
1382
1383 MODULE_LICENSE("Dual BSD/GPL");
1384 MODULE_AUTHOR("Sean Wang <sean.wang@mediatek.com>");
1385