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 _ieee80211_set_sband_iftype_data(band, data, n);
200 }
201
202 if (phy->mt76->cap.has_5ghz) {
203 data = phy->iftype[NL80211_BAND_5GHZ];
204 n = mt7921_init_he_caps(phy, NL80211_BAND_5GHZ, data);
205
206 band = &phy->mt76->sband_5g.sband;
207 _ieee80211_set_sband_iftype_data(band, data, n);
208
209 if (phy->mt76->cap.has_6ghz) {
210 data = phy->iftype[NL80211_BAND_6GHZ];
211 n = mt7921_init_he_caps(phy, NL80211_BAND_6GHZ, data);
212
213 band = &phy->mt76->sband_6g.sband;
214 _ieee80211_set_sband_iftype_data(band, data, n);
215 }
216 }
217 }
218
__mt7921_start(struct mt792x_phy * phy)219 int __mt7921_start(struct mt792x_phy *phy)
220 {
221 struct mt76_phy *mphy = phy->mt76;
222 int err;
223
224 err = mt76_connac_mcu_set_mac_enable(mphy->dev, 0, true, false);
225 if (err)
226 return err;
227
228 err = mt76_connac_mcu_set_channel_domain(mphy);
229 if (err)
230 return err;
231
232 err = mt7921_mcu_set_chan_info(phy, MCU_EXT_CMD(SET_RX_PATH));
233 if (err)
234 return err;
235
236 err = mt7921_set_tx_sar_pwr(mphy->hw, NULL);
237 if (err)
238 return err;
239
240 mt792x_mac_reset_counters(phy);
241 set_bit(MT76_STATE_RUNNING, &mphy->state);
242
243 ieee80211_queue_delayed_work(mphy->hw, &mphy->mac_work,
244 MT792x_WATCHDOG_TIME);
245
246 return 0;
247 }
248 EXPORT_SYMBOL_GPL(__mt7921_start);
249
mt7921_start(struct ieee80211_hw * hw)250 static int mt7921_start(struct ieee80211_hw *hw)
251 {
252 struct mt792x_phy *phy = mt792x_hw_phy(hw);
253 int err;
254
255 mt792x_mutex_acquire(phy->dev);
256 err = __mt7921_start(phy);
257 mt792x_mutex_release(phy->dev);
258
259 return err;
260 }
261
262 static int
mt7921_add_interface(struct ieee80211_hw * hw,struct ieee80211_vif * vif)263 mt7921_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
264 {
265 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
266 struct mt792x_dev *dev = mt792x_hw_dev(hw);
267 struct mt792x_phy *phy = mt792x_hw_phy(hw);
268 struct mt76_txq *mtxq;
269 int idx, ret = 0;
270
271 mt792x_mutex_acquire(dev);
272
273 mvif->mt76.idx = __ffs64(~dev->mt76.vif_mask);
274 if (mvif->mt76.idx >= MT792x_MAX_INTERFACES) {
275 ret = -ENOSPC;
276 goto out;
277 }
278
279 mvif->mt76.omac_idx = mvif->mt76.idx;
280 mvif->phy = phy;
281 mvif->mt76.band_idx = 0;
282 mvif->mt76.wmm_idx = mvif->mt76.idx % MT76_CONNAC_MAX_WMM_SETS;
283
284 ret = mt76_connac_mcu_uni_add_dev(&dev->mphy, vif, &mvif->sta.wcid,
285 true);
286 if (ret)
287 goto out;
288
289 dev->mt76.vif_mask |= BIT_ULL(mvif->mt76.idx);
290 phy->omac_mask |= BIT_ULL(mvif->mt76.omac_idx);
291
292 idx = MT792x_WTBL_RESERVED - mvif->mt76.idx;
293
294 INIT_LIST_HEAD(&mvif->sta.wcid.poll_list);
295 mvif->sta.wcid.idx = idx;
296 mvif->sta.wcid.phy_idx = mvif->mt76.band_idx;
297 mvif->sta.wcid.hw_key_idx = -1;
298 mvif->sta.wcid.tx_info |= MT_WCID_TX_INFO_SET;
299 mt76_wcid_init(&mvif->sta.wcid);
300
301 mt7921_mac_wtbl_update(dev, idx,
302 MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
303
304 ewma_rssi_init(&mvif->rssi);
305
306 rcu_assign_pointer(dev->mt76.wcid[idx], &mvif->sta.wcid);
307 if (vif->txq) {
308 mtxq = (struct mt76_txq *)vif->txq->drv_priv;
309 mtxq->wcid = idx;
310 }
311
312 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER;
313 out:
314 mt792x_mutex_release(dev);
315
316 return ret;
317 }
318
mt7921_roc_iter(void * priv,u8 * mac,struct ieee80211_vif * vif)319 static void mt7921_roc_iter(void *priv, u8 *mac,
320 struct ieee80211_vif *vif)
321 {
322 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
323 struct mt792x_phy *phy = priv;
324
325 mt7921_mcu_abort_roc(phy, mvif, phy->roc_token_id);
326 }
327
mt7921_roc_work(struct work_struct * work)328 void mt7921_roc_work(struct work_struct *work)
329 {
330 struct mt792x_phy *phy;
331
332 phy = (struct mt792x_phy *)container_of(work, struct mt792x_phy,
333 roc_work);
334
335 if (!test_and_clear_bit(MT76_STATE_ROC, &phy->mt76->state))
336 return;
337
338 mt792x_mutex_acquire(phy->dev);
339 ieee80211_iterate_active_interfaces(phy->mt76->hw,
340 IEEE80211_IFACE_ITER_RESUME_ALL,
341 mt7921_roc_iter, phy);
342 mt792x_mutex_release(phy->dev);
343 ieee80211_remain_on_channel_expired(phy->mt76->hw);
344 }
345
mt7921_abort_roc(struct mt792x_phy * phy,struct mt792x_vif * vif)346 static int mt7921_abort_roc(struct mt792x_phy *phy, struct mt792x_vif *vif)
347 {
348 int err = 0;
349
350 del_timer_sync(&phy->roc_timer);
351 cancel_work_sync(&phy->roc_work);
352
353 mt792x_mutex_acquire(phy->dev);
354 if (test_and_clear_bit(MT76_STATE_ROC, &phy->mt76->state))
355 err = mt7921_mcu_abort_roc(phy, vif, phy->roc_token_id);
356 mt792x_mutex_release(phy->dev);
357
358 return err;
359 }
360
mt7921_set_roc(struct mt792x_phy * phy,struct mt792x_vif * vif,struct ieee80211_channel * chan,int duration,enum mt7921_roc_req type)361 static int mt7921_set_roc(struct mt792x_phy *phy,
362 struct mt792x_vif *vif,
363 struct ieee80211_channel *chan,
364 int duration,
365 enum mt7921_roc_req type)
366 {
367 int err;
368
369 if (test_and_set_bit(MT76_STATE_ROC, &phy->mt76->state))
370 return -EBUSY;
371
372 phy->roc_grant = false;
373
374 err = mt7921_mcu_set_roc(phy, vif, chan, duration, type,
375 ++phy->roc_token_id);
376 if (err < 0) {
377 clear_bit(MT76_STATE_ROC, &phy->mt76->state);
378 goto out;
379 }
380
381 if (!wait_event_timeout(phy->roc_wait, phy->roc_grant, HZ)) {
382 mt7921_mcu_abort_roc(phy, vif, phy->roc_token_id);
383 clear_bit(MT76_STATE_ROC, &phy->mt76->state);
384 err = -ETIMEDOUT;
385 }
386
387 out:
388 return err;
389 }
390
mt7921_remain_on_channel(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_channel * chan,int duration,enum ieee80211_roc_type type)391 static int mt7921_remain_on_channel(struct ieee80211_hw *hw,
392 struct ieee80211_vif *vif,
393 struct ieee80211_channel *chan,
394 int duration,
395 enum ieee80211_roc_type type)
396 {
397 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
398 struct mt792x_phy *phy = mt792x_hw_phy(hw);
399 int err;
400
401 mt792x_mutex_acquire(phy->dev);
402 err = mt7921_set_roc(phy, mvif, chan, duration, MT7921_ROC_REQ_ROC);
403 mt792x_mutex_release(phy->dev);
404
405 return err;
406 }
407
mt7921_cancel_remain_on_channel(struct ieee80211_hw * hw,struct ieee80211_vif * vif)408 static int mt7921_cancel_remain_on_channel(struct ieee80211_hw *hw,
409 struct ieee80211_vif *vif)
410 {
411 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
412 struct mt792x_phy *phy = mt792x_hw_phy(hw);
413
414 return mt7921_abort_roc(phy, mvif);
415 }
416
mt7921_set_channel(struct mt792x_phy * phy)417 static int mt7921_set_channel(struct mt792x_phy *phy)
418 {
419 struct mt792x_dev *dev = phy->dev;
420 int ret;
421
422 cancel_delayed_work_sync(&phy->mt76->mac_work);
423
424 mt792x_mutex_acquire(dev);
425 set_bit(MT76_RESET, &phy->mt76->state);
426
427 mt76_set_channel(phy->mt76);
428
429 ret = mt7921_mcu_set_chan_info(phy, MCU_EXT_CMD(CHANNEL_SWITCH));
430 if (ret)
431 goto out;
432
433 mt792x_mac_set_timeing(phy);
434
435 mt792x_mac_reset_counters(phy);
436 phy->noise = 0;
437
438 out:
439 clear_bit(MT76_RESET, &phy->mt76->state);
440 mt792x_mutex_release(dev);
441
442 mt76_worker_schedule(&dev->mt76.tx_worker);
443 ieee80211_queue_delayed_work(phy->mt76->hw, &phy->mt76->mac_work,
444 MT792x_WATCHDOG_TIME);
445
446 return ret;
447 }
448
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)449 static int mt7921_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
450 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
451 struct ieee80211_key_conf *key)
452 {
453 struct mt792x_dev *dev = mt792x_hw_dev(hw);
454 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
455 struct mt792x_sta *msta = sta ? (struct mt792x_sta *)sta->drv_priv :
456 &mvif->sta;
457 struct mt76_wcid *wcid = &msta->wcid;
458 u8 *wcid_keyidx = &wcid->hw_key_idx;
459 int idx = key->keyidx, err = 0;
460
461 /* The hardware does not support per-STA RX GTK, fallback
462 * to software mode for these.
463 */
464 if ((vif->type == NL80211_IFTYPE_ADHOC ||
465 vif->type == NL80211_IFTYPE_MESH_POINT) &&
466 (key->cipher == WLAN_CIPHER_SUITE_TKIP ||
467 key->cipher == WLAN_CIPHER_SUITE_CCMP) &&
468 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE))
469 return -EOPNOTSUPP;
470
471 /* fall back to sw encryption for unsupported ciphers */
472 switch (key->cipher) {
473 case WLAN_CIPHER_SUITE_AES_CMAC:
474 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIE;
475 wcid_keyidx = &wcid->hw_key_idx2;
476 break;
477 case WLAN_CIPHER_SUITE_WEP40:
478 case WLAN_CIPHER_SUITE_WEP104:
479 if (!mvif->wep_sta)
480 return -EOPNOTSUPP;
481 break;
482 case WLAN_CIPHER_SUITE_TKIP:
483 case WLAN_CIPHER_SUITE_CCMP:
484 case WLAN_CIPHER_SUITE_CCMP_256:
485 case WLAN_CIPHER_SUITE_GCMP:
486 case WLAN_CIPHER_SUITE_GCMP_256:
487 case WLAN_CIPHER_SUITE_SMS4:
488 break;
489 default:
490 return -EOPNOTSUPP;
491 }
492
493 mt792x_mutex_acquire(dev);
494
495 if (cmd == SET_KEY) {
496 *wcid_keyidx = idx;
497 } else {
498 if (idx == *wcid_keyidx)
499 *wcid_keyidx = -1;
500 goto out;
501 }
502
503 mt76_wcid_key_setup(&dev->mt76, wcid, key);
504 err = mt76_connac_mcu_add_key(&dev->mt76, vif, &msta->bip,
505 key, MCU_UNI_CMD(STA_REC_UPDATE),
506 &msta->wcid, cmd);
507 if (err)
508 goto out;
509
510 if (key->cipher == WLAN_CIPHER_SUITE_WEP104 ||
511 key->cipher == WLAN_CIPHER_SUITE_WEP40)
512 err = mt76_connac_mcu_add_key(&dev->mt76, vif,
513 &mvif->wep_sta->bip,
514 key, MCU_UNI_CMD(STA_REC_UPDATE),
515 &mvif->wep_sta->wcid, cmd);
516 out:
517 mt792x_mutex_release(dev);
518
519 return err;
520 }
521
522 static void
mt7921_pm_interface_iter(void * priv,u8 * mac,struct ieee80211_vif * vif)523 mt7921_pm_interface_iter(void *priv, u8 *mac, struct ieee80211_vif *vif)
524 {
525 struct mt792x_dev *dev = priv;
526 struct ieee80211_hw *hw = mt76_hw(dev);
527 bool pm_enable = dev->pm.enable;
528 int err;
529
530 err = mt7921_mcu_set_beacon_filter(dev, vif, pm_enable);
531 if (err < 0)
532 return;
533
534 if (pm_enable) {
535 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER;
536 ieee80211_hw_set(hw, CONNECTION_MONITOR);
537 } else {
538 vif->driver_flags &= ~IEEE80211_VIF_BEACON_FILTER;
539 __clear_bit(IEEE80211_HW_CONNECTION_MONITOR, hw->flags);
540 }
541 }
542
543 static void
mt7921_sniffer_interface_iter(void * priv,u8 * mac,struct ieee80211_vif * vif)544 mt7921_sniffer_interface_iter(void *priv, u8 *mac, struct ieee80211_vif *vif)
545 {
546 struct mt792x_dev *dev = priv;
547 struct ieee80211_hw *hw = mt76_hw(dev);
548 struct mt76_connac_pm *pm = &dev->pm;
549 bool monitor = !!(hw->conf.flags & IEEE80211_CONF_MONITOR);
550
551 mt7921_mcu_set_sniffer(dev, vif, monitor);
552 pm->enable = pm->enable_user && !monitor;
553 pm->ds_enable = pm->ds_enable_user && !monitor;
554
555 mt76_connac_mcu_set_deep_sleep(&dev->mt76, pm->ds_enable);
556
557 if (monitor)
558 mt7921_mcu_set_beacon_filter(dev, vif, false);
559 }
560
mt7921_set_runtime_pm(struct mt792x_dev * dev)561 void mt7921_set_runtime_pm(struct mt792x_dev *dev)
562 {
563 struct ieee80211_hw *hw = mt76_hw(dev);
564 struct mt76_connac_pm *pm = &dev->pm;
565 bool monitor = !!(hw->conf.flags & IEEE80211_CONF_MONITOR);
566
567 pm->enable = pm->enable_user && !monitor;
568 ieee80211_iterate_active_interfaces(hw,
569 IEEE80211_IFACE_ITER_RESUME_ALL,
570 mt7921_pm_interface_iter, dev);
571 pm->ds_enable = pm->ds_enable_user && !monitor;
572 mt76_connac_mcu_set_deep_sleep(&dev->mt76, pm->ds_enable);
573 }
574
mt7921_config(struct ieee80211_hw * hw,u32 changed)575 static int mt7921_config(struct ieee80211_hw *hw, u32 changed)
576 {
577 struct mt792x_dev *dev = mt792x_hw_dev(hw);
578 struct mt792x_phy *phy = mt792x_hw_phy(hw);
579 int ret = 0;
580
581 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
582 ieee80211_stop_queues(hw);
583 ret = mt7921_set_channel(phy);
584 if (ret)
585 return ret;
586 ieee80211_wake_queues(hw);
587 }
588
589 mt792x_mutex_acquire(dev);
590
591 if (changed & IEEE80211_CONF_CHANGE_POWER) {
592 ret = mt7921_set_tx_sar_pwr(hw, NULL);
593 if (ret)
594 goto out;
595 }
596
597 if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
598 ieee80211_iterate_active_interfaces(hw,
599 IEEE80211_IFACE_ITER_RESUME_ALL,
600 mt7921_sniffer_interface_iter, dev);
601 }
602
603 out:
604 mt792x_mutex_release(dev);
605
606 return ret;
607 }
608
mt7921_configure_filter(struct ieee80211_hw * hw,unsigned int changed_flags,unsigned int * total_flags,u64 multicast)609 static void mt7921_configure_filter(struct ieee80211_hw *hw,
610 unsigned int changed_flags,
611 unsigned int *total_flags,
612 u64 multicast)
613 {
614 #define MT7921_FILTER_FCSFAIL BIT(2)
615 #define MT7921_FILTER_CONTROL BIT(5)
616 #define MT7921_FILTER_OTHER_BSS BIT(6)
617 #define MT7921_FILTER_ENABLE BIT(31)
618
619 struct mt792x_dev *dev = mt792x_hw_dev(hw);
620 u32 flags = MT7921_FILTER_ENABLE;
621
622 #define MT7921_FILTER(_fif, _type) do { \
623 if (*total_flags & (_fif)) \
624 flags |= MT7921_FILTER_##_type; \
625 } while (0)
626
627 MT7921_FILTER(FIF_FCSFAIL, FCSFAIL);
628 MT7921_FILTER(FIF_CONTROL, CONTROL);
629 MT7921_FILTER(FIF_OTHER_BSS, OTHER_BSS);
630
631 mt792x_mutex_acquire(dev);
632 mt7921_mcu_set_rxfilter(dev, flags, 0, 0);
633 mt792x_mutex_release(dev);
634
635 *total_flags &= (FIF_OTHER_BSS | FIF_FCSFAIL | FIF_CONTROL);
636 }
637
mt7921_bss_info_changed(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * info,u64 changed)638 static void mt7921_bss_info_changed(struct ieee80211_hw *hw,
639 struct ieee80211_vif *vif,
640 struct ieee80211_bss_conf *info,
641 u64 changed)
642 {
643 struct mt792x_phy *phy = mt792x_hw_phy(hw);
644 struct mt792x_dev *dev = mt792x_hw_dev(hw);
645
646 mt792x_mutex_acquire(dev);
647
648 if (changed & BSS_CHANGED_ERP_SLOT) {
649 int slottime = info->use_short_slot ? 9 : 20;
650
651 if (slottime != phy->slottime) {
652 phy->slottime = slottime;
653 mt792x_mac_set_timeing(phy);
654 }
655 }
656
657 if (changed & (BSS_CHANGED_BEACON |
658 BSS_CHANGED_BEACON_ENABLED))
659 mt7921_mcu_uni_add_beacon_offload(dev, hw, vif,
660 info->enable_beacon);
661
662 /* ensure that enable txcmd_mode after bss_info */
663 if (changed & (BSS_CHANGED_QOS | BSS_CHANGED_BEACON_ENABLED))
664 mt7921_mcu_set_tx(dev, vif);
665
666 if (changed & BSS_CHANGED_PS)
667 mt7921_mcu_uni_bss_ps(dev, vif);
668
669 if (changed & BSS_CHANGED_ASSOC) {
670 mt7921_mcu_sta_update(dev, NULL, vif, true,
671 MT76_STA_INFO_STATE_ASSOC);
672 mt7921_mcu_set_beacon_filter(dev, vif, vif->cfg.assoc);
673 }
674
675 if (changed & BSS_CHANGED_ARP_FILTER) {
676 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
677
678 mt76_connac_mcu_update_arp_filter(&dev->mt76, &mvif->mt76,
679 info);
680 }
681
682 mt792x_mutex_release(dev);
683 }
684
685 static void
mt7921_calc_vif_num(void * priv,u8 * mac,struct ieee80211_vif * vif)686 mt7921_calc_vif_num(void *priv, u8 *mac, struct ieee80211_vif *vif)
687 {
688 u32 *num = priv;
689
690 if (!priv)
691 return;
692
693 switch (vif->type) {
694 case NL80211_IFTYPE_STATION:
695 case NL80211_IFTYPE_P2P_CLIENT:
696 case NL80211_IFTYPE_AP:
697 case NL80211_IFTYPE_P2P_GO:
698 *num += 1;
699 break;
700 default:
701 break;
702 }
703 }
704
705 static void
mt7921_regd_set_6ghz_power_type(struct ieee80211_vif * vif,bool is_add)706 mt7921_regd_set_6ghz_power_type(struct ieee80211_vif *vif, bool is_add)
707 {
708 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
709 struct mt792x_phy *phy = mvif->phy;
710 struct mt792x_dev *dev = phy->dev;
711 u32 valid_vif_num = 0;
712
713 ieee80211_iterate_active_interfaces(mt76_hw(dev),
714 IEEE80211_IFACE_ITER_RESUME_ALL,
715 mt7921_calc_vif_num, &valid_vif_num);
716
717 if (valid_vif_num > 1) {
718 phy->power_type = MT_AP_DEFAULT;
719 goto out;
720 }
721
722 if (!is_add)
723 vif->bss_conf.power_type = IEEE80211_REG_UNSET_AP;
724
725 switch (vif->bss_conf.power_type) {
726 case IEEE80211_REG_SP_AP:
727 phy->power_type = MT_AP_SP;
728 break;
729 case IEEE80211_REG_VLP_AP:
730 phy->power_type = MT_AP_VLP;
731 break;
732 case IEEE80211_REG_LPI_AP:
733 phy->power_type = MT_AP_LPI;
734 break;
735 case IEEE80211_REG_UNSET_AP:
736 phy->power_type = MT_AP_UNSET;
737 break;
738 default:
739 phy->power_type = MT_AP_DEFAULT;
740 break;
741 }
742
743 out:
744 mt7921_mcu_set_clc(dev, dev->mt76.alpha2, dev->country_ie_env);
745 }
746
mt7921_mac_sta_add(struct mt76_dev * mdev,struct ieee80211_vif * vif,struct ieee80211_sta * sta)747 int mt7921_mac_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif,
748 struct ieee80211_sta *sta)
749 {
750 struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76);
751 struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv;
752 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
753 int ret, idx;
754
755 idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT792x_WTBL_STA - 1);
756 if (idx < 0)
757 return -ENOSPC;
758
759 INIT_LIST_HEAD(&msta->wcid.poll_list);
760 msta->vif = mvif;
761 msta->wcid.sta = 1;
762 msta->wcid.idx = idx;
763 msta->wcid.phy_idx = mvif->mt76.band_idx;
764 msta->wcid.tx_info |= MT_WCID_TX_INFO_SET;
765 msta->last_txs = jiffies;
766
767 ret = mt76_connac_pm_wake(&dev->mphy, &dev->pm);
768 if (ret)
769 return ret;
770
771 if (vif->type == NL80211_IFTYPE_STATION)
772 mvif->wep_sta = msta;
773
774 mt7921_mac_wtbl_update(dev, idx,
775 MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
776
777 ret = mt7921_mcu_sta_update(dev, sta, vif, true,
778 MT76_STA_INFO_STATE_NONE);
779 if (ret)
780 return ret;
781
782 mt7921_regd_set_6ghz_power_type(vif, true);
783
784 mt76_connac_power_save_sched(&dev->mphy, &dev->pm);
785
786 return 0;
787 }
788 EXPORT_SYMBOL_GPL(mt7921_mac_sta_add);
789
mt7921_mac_sta_assoc(struct mt76_dev * mdev,struct ieee80211_vif * vif,struct ieee80211_sta * sta)790 void mt7921_mac_sta_assoc(struct mt76_dev *mdev, struct ieee80211_vif *vif,
791 struct ieee80211_sta *sta)
792 {
793 struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76);
794 struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv;
795 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
796
797 mt792x_mutex_acquire(dev);
798
799 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls)
800 mt76_connac_mcu_uni_add_bss(&dev->mphy, vif, &mvif->sta.wcid,
801 true, mvif->mt76.ctx);
802
803 ewma_avg_signal_init(&msta->avg_ack_signal);
804
805 mt7921_mac_wtbl_update(dev, msta->wcid.idx,
806 MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
807 memset(msta->airtime_ac, 0, sizeof(msta->airtime_ac));
808
809 mt7921_mcu_sta_update(dev, sta, vif, true, MT76_STA_INFO_STATE_ASSOC);
810
811 mt792x_mutex_release(dev);
812 }
813 EXPORT_SYMBOL_GPL(mt7921_mac_sta_assoc);
814
mt7921_mac_sta_remove(struct mt76_dev * mdev,struct ieee80211_vif * vif,struct ieee80211_sta * sta)815 void mt7921_mac_sta_remove(struct mt76_dev *mdev, struct ieee80211_vif *vif,
816 struct ieee80211_sta *sta)
817 {
818 struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76);
819 struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv;
820
821 mt76_connac_free_pending_tx_skbs(&dev->pm, &msta->wcid);
822 mt76_connac_pm_wake(&dev->mphy, &dev->pm);
823
824 mt7921_mcu_sta_update(dev, sta, vif, false, MT76_STA_INFO_STATE_NONE);
825 mt7921_mac_wtbl_update(dev, msta->wcid.idx,
826 MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
827
828 if (vif->type == NL80211_IFTYPE_STATION) {
829 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
830
831 mvif->wep_sta = NULL;
832 ewma_rssi_init(&mvif->rssi);
833 if (!sta->tdls)
834 mt76_connac_mcu_uni_add_bss(&dev->mphy, vif,
835 &mvif->sta.wcid, false,
836 mvif->mt76.ctx);
837 }
838
839 spin_lock_bh(&dev->mt76.sta_poll_lock);
840 if (!list_empty(&msta->wcid.poll_list))
841 list_del_init(&msta->wcid.poll_list);
842 spin_unlock_bh(&dev->mt76.sta_poll_lock);
843
844 mt7921_regd_set_6ghz_power_type(vif, false);
845
846 mt76_connac_power_save_sched(&dev->mphy, &dev->pm);
847 }
848 EXPORT_SYMBOL_GPL(mt7921_mac_sta_remove);
849
mt7921_set_rts_threshold(struct ieee80211_hw * hw,u32 val)850 static int mt7921_set_rts_threshold(struct ieee80211_hw *hw, u32 val)
851 {
852 struct mt792x_dev *dev = mt792x_hw_dev(hw);
853
854 mt792x_mutex_acquire(dev);
855 mt76_connac_mcu_set_rts_thresh(&dev->mt76, val, 0);
856 mt792x_mutex_release(dev);
857
858 return 0;
859 }
860
861 static int
mt7921_ampdu_action(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_ampdu_params * params)862 mt7921_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
863 struct ieee80211_ampdu_params *params)
864 {
865 enum ieee80211_ampdu_mlme_action action = params->action;
866 struct mt792x_dev *dev = mt792x_hw_dev(hw);
867 struct ieee80211_sta *sta = params->sta;
868 struct ieee80211_txq *txq = sta->txq[params->tid];
869 struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv;
870 u16 tid = params->tid;
871 u16 ssn = params->ssn;
872 struct mt76_txq *mtxq;
873 int ret = 0;
874
875 if (!txq)
876 return -EINVAL;
877
878 mtxq = (struct mt76_txq *)txq->drv_priv;
879
880 mt792x_mutex_acquire(dev);
881 switch (action) {
882 case IEEE80211_AMPDU_RX_START:
883 mt76_rx_aggr_start(&dev->mt76, &msta->wcid, tid, ssn,
884 params->buf_size);
885 mt7921_mcu_uni_rx_ba(dev, params, true);
886 break;
887 case IEEE80211_AMPDU_RX_STOP:
888 mt76_rx_aggr_stop(&dev->mt76, &msta->wcid, tid);
889 mt7921_mcu_uni_rx_ba(dev, params, false);
890 break;
891 case IEEE80211_AMPDU_TX_OPERATIONAL:
892 mtxq->aggr = true;
893 mtxq->send_bar = false;
894 mt7921_mcu_uni_tx_ba(dev, params, true);
895 break;
896 case IEEE80211_AMPDU_TX_STOP_FLUSH:
897 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
898 mtxq->aggr = false;
899 clear_bit(tid, &msta->wcid.ampdu_state);
900 mt7921_mcu_uni_tx_ba(dev, params, false);
901 break;
902 case IEEE80211_AMPDU_TX_START:
903 set_bit(tid, &msta->wcid.ampdu_state);
904 ret = IEEE80211_AMPDU_TX_START_IMMEDIATE;
905 break;
906 case IEEE80211_AMPDU_TX_STOP_CONT:
907 mtxq->aggr = false;
908 clear_bit(tid, &msta->wcid.ampdu_state);
909 mt7921_mcu_uni_tx_ba(dev, params, false);
910 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
911 break;
912 }
913 mt792x_mutex_release(dev);
914
915 return ret;
916 }
917
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)918 static int mt7921_sta_state(struct ieee80211_hw *hw,
919 struct ieee80211_vif *vif,
920 struct ieee80211_sta *sta,
921 enum ieee80211_sta_state old_state,
922 enum ieee80211_sta_state new_state)
923 {
924 struct mt792x_dev *dev = mt792x_hw_dev(hw);
925
926 if (dev->pm.ds_enable) {
927 mt792x_mutex_acquire(dev);
928 mt76_connac_sta_state_dp(&dev->mt76, old_state, new_state);
929 mt792x_mutex_release(dev);
930 }
931
932 return mt76_sta_state(hw, vif, sta, old_state, new_state);
933 }
934
mt7921_scan_work(struct work_struct * work)935 void mt7921_scan_work(struct work_struct *work)
936 {
937 struct mt792x_phy *phy;
938
939 phy = (struct mt792x_phy *)container_of(work, struct mt792x_phy,
940 scan_work.work);
941
942 while (true) {
943 struct mt76_connac2_mcu_rxd *rxd;
944 struct sk_buff *skb;
945
946 spin_lock_bh(&phy->dev->mt76.lock);
947 skb = __skb_dequeue(&phy->scan_event_list);
948 spin_unlock_bh(&phy->dev->mt76.lock);
949
950 if (!skb)
951 break;
952
953 rxd = (struct mt76_connac2_mcu_rxd *)skb->data;
954 if (rxd->eid == MCU_EVENT_SCHED_SCAN_DONE) {
955 ieee80211_sched_scan_results(phy->mt76->hw);
956 } else if (test_and_clear_bit(MT76_HW_SCANNING,
957 &phy->mt76->state)) {
958 struct cfg80211_scan_info info = {
959 .aborted = false,
960 };
961
962 ieee80211_scan_completed(phy->mt76->hw, &info);
963 }
964 dev_kfree_skb(skb);
965 }
966 }
967
968 static int
mt7921_hw_scan(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_scan_request * req)969 mt7921_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
970 struct ieee80211_scan_request *req)
971 {
972 struct mt792x_dev *dev = mt792x_hw_dev(hw);
973 struct mt76_phy *mphy = hw->priv;
974 int err;
975
976 mt792x_mutex_acquire(dev);
977 err = mt76_connac_mcu_hw_scan(mphy, vif, req);
978 mt792x_mutex_release(dev);
979
980 return err;
981 }
982
983 static void
mt7921_cancel_hw_scan(struct ieee80211_hw * hw,struct ieee80211_vif * vif)984 mt7921_cancel_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
985 {
986 struct mt792x_dev *dev = mt792x_hw_dev(hw);
987 struct mt76_phy *mphy = hw->priv;
988
989 mt792x_mutex_acquire(dev);
990 mt76_connac_mcu_cancel_hw_scan(mphy, vif);
991 mt792x_mutex_release(dev);
992 }
993
994 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)995 mt7921_start_sched_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
996 struct cfg80211_sched_scan_request *req,
997 struct ieee80211_scan_ies *ies)
998 {
999 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1000 struct mt76_phy *mphy = hw->priv;
1001 int err;
1002
1003 mt792x_mutex_acquire(dev);
1004
1005 err = mt76_connac_mcu_sched_scan_req(mphy, vif, req);
1006 if (err < 0)
1007 goto out;
1008
1009 err = mt76_connac_mcu_sched_scan_enable(mphy, vif, true);
1010 out:
1011 mt792x_mutex_release(dev);
1012
1013 return err;
1014 }
1015
1016 static int
mt7921_stop_sched_scan(struct ieee80211_hw * hw,struct ieee80211_vif * vif)1017 mt7921_stop_sched_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
1018 {
1019 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1020 struct mt76_phy *mphy = hw->priv;
1021 int err;
1022
1023 mt792x_mutex_acquire(dev);
1024 err = mt76_connac_mcu_sched_scan_enable(mphy, vif, false);
1025 mt792x_mutex_release(dev);
1026
1027 return err;
1028 }
1029
1030 static int
mt7921_set_antenna(struct ieee80211_hw * hw,u32 tx_ant,u32 rx_ant)1031 mt7921_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant)
1032 {
1033 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1034 struct mt792x_phy *phy = mt792x_hw_phy(hw);
1035 int max_nss = hweight8(hw->wiphy->available_antennas_tx);
1036
1037 if (!tx_ant || tx_ant != rx_ant || ffs(tx_ant) > max_nss)
1038 return -EINVAL;
1039
1040 if ((BIT(hweight8(tx_ant)) - 1) != tx_ant)
1041 return -EINVAL;
1042
1043 mt792x_mutex_acquire(dev);
1044
1045 phy->mt76->antenna_mask = tx_ant;
1046 phy->mt76->chainmask = tx_ant;
1047
1048 mt76_set_stream_caps(phy->mt76, true);
1049 mt7921_set_stream_he_caps(phy);
1050
1051 mt792x_mutex_release(dev);
1052
1053 return 0;
1054 }
1055
1056 #ifdef CONFIG_PM
mt7921_suspend(struct ieee80211_hw * hw,struct cfg80211_wowlan * wowlan)1057 static int mt7921_suspend(struct ieee80211_hw *hw,
1058 struct cfg80211_wowlan *wowlan)
1059 {
1060 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1061 struct mt792x_phy *phy = mt792x_hw_phy(hw);
1062
1063 cancel_delayed_work_sync(&phy->scan_work);
1064 cancel_delayed_work_sync(&phy->mt76->mac_work);
1065
1066 cancel_delayed_work_sync(&dev->pm.ps_work);
1067 mt76_connac_free_pending_tx_skbs(&dev->pm, NULL);
1068
1069 mt792x_mutex_acquire(dev);
1070
1071 clear_bit(MT76_STATE_RUNNING, &phy->mt76->state);
1072 ieee80211_iterate_active_interfaces(hw,
1073 IEEE80211_IFACE_ITER_RESUME_ALL,
1074 mt7921_mcu_set_suspend_iter,
1075 &dev->mphy);
1076
1077 mt792x_mutex_release(dev);
1078
1079 return 0;
1080 }
1081
mt7921_resume(struct ieee80211_hw * hw)1082 static int mt7921_resume(struct ieee80211_hw *hw)
1083 {
1084 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1085 struct mt792x_phy *phy = mt792x_hw_phy(hw);
1086
1087 mt792x_mutex_acquire(dev);
1088
1089 set_bit(MT76_STATE_RUNNING, &phy->mt76->state);
1090 ieee80211_iterate_active_interfaces(hw,
1091 IEEE80211_IFACE_ITER_RESUME_ALL,
1092 mt76_connac_mcu_set_suspend_iter,
1093 &dev->mphy);
1094
1095 ieee80211_queue_delayed_work(hw, &phy->mt76->mac_work,
1096 MT792x_WATCHDOG_TIME);
1097
1098 mt792x_mutex_release(dev);
1099
1100 return 0;
1101 }
1102
mt7921_set_rekey_data(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct cfg80211_gtk_rekey_data * data)1103 static void mt7921_set_rekey_data(struct ieee80211_hw *hw,
1104 struct ieee80211_vif *vif,
1105 struct cfg80211_gtk_rekey_data *data)
1106 {
1107 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1108
1109 mt792x_mutex_acquire(dev);
1110 mt76_connac_mcu_update_gtk_rekey(hw, vif, data);
1111 mt792x_mutex_release(dev);
1112 }
1113 #endif /* CONFIG_PM */
1114
mt7921_sta_set_decap_offload(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,bool enabled)1115 static void mt7921_sta_set_decap_offload(struct ieee80211_hw *hw,
1116 struct ieee80211_vif *vif,
1117 struct ieee80211_sta *sta,
1118 bool enabled)
1119 {
1120 struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv;
1121 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1122
1123 mt792x_mutex_acquire(dev);
1124
1125 if (enabled)
1126 set_bit(MT_WCID_FLAG_HDR_TRANS, &msta->wcid.flags);
1127 else
1128 clear_bit(MT_WCID_FLAG_HDR_TRANS, &msta->wcid.flags);
1129
1130 mt76_connac_mcu_sta_update_hdr_trans(&dev->mt76, vif, &msta->wcid,
1131 MCU_UNI_CMD(STA_REC_UPDATE));
1132
1133 mt792x_mutex_release(dev);
1134 }
1135
1136 #if IS_ENABLED(CONFIG_IPV6)
mt7921_ipv6_addr_change(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct inet6_dev * idev)1137 static void mt7921_ipv6_addr_change(struct ieee80211_hw *hw,
1138 struct ieee80211_vif *vif,
1139 struct inet6_dev *idev)
1140 {
1141 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
1142 struct mt792x_dev *dev = mvif->phy->dev;
1143 struct inet6_ifaddr *ifa;
1144 struct in6_addr ns_addrs[IEEE80211_BSS_ARP_ADDR_LIST_LEN];
1145 struct sk_buff *skb;
1146 u8 i, idx = 0;
1147
1148 struct {
1149 struct {
1150 u8 bss_idx;
1151 u8 pad[3];
1152 } __packed hdr;
1153 struct mt76_connac_arpns_tlv arpns;
1154 } req_hdr = {
1155 .hdr = {
1156 .bss_idx = mvif->mt76.idx,
1157 },
1158 .arpns = {
1159 .tag = cpu_to_le16(UNI_OFFLOAD_OFFLOAD_ND),
1160 .mode = 2, /* update */
1161 .option = 1, /* update only */
1162 },
1163 };
1164
1165 read_lock_bh(&idev->lock);
1166 list_for_each_entry(ifa, &idev->addr_list, if_list) {
1167 if (ifa->flags & IFA_F_TENTATIVE)
1168 continue;
1169 ns_addrs[idx] = ifa->addr;
1170 if (++idx >= IEEE80211_BSS_ARP_ADDR_LIST_LEN)
1171 break;
1172 }
1173 read_unlock_bh(&idev->lock);
1174
1175 if (!idx)
1176 return;
1177
1178 req_hdr.arpns.ips_num = idx;
1179 req_hdr.arpns.len = cpu_to_le16(sizeof(struct mt76_connac_arpns_tlv)
1180 + idx * sizeof(struct in6_addr));
1181 skb = __mt76_mcu_msg_alloc(&dev->mt76, &req_hdr,
1182 sizeof(req_hdr) + idx * sizeof(struct in6_addr),
1183 sizeof(req_hdr), GFP_ATOMIC);
1184 if (!skb)
1185 return;
1186
1187 for (i = 0; i < idx; i++)
1188 skb_put_data(skb, &ns_addrs[i].in6_u, sizeof(struct in6_addr));
1189
1190 skb_queue_tail(&dev->ipv6_ns_list, skb);
1191
1192 ieee80211_queue_work(dev->mt76.hw, &dev->ipv6_ns_work);
1193 }
1194 #endif
1195
mt7921_set_tx_sar_pwr(struct ieee80211_hw * hw,const struct cfg80211_sar_specs * sar)1196 int mt7921_set_tx_sar_pwr(struct ieee80211_hw *hw,
1197 const struct cfg80211_sar_specs *sar)
1198 {
1199 struct mt76_phy *mphy = hw->priv;
1200
1201 if (sar) {
1202 int err = mt76_init_sar_power(hw, sar);
1203
1204 if (err)
1205 return err;
1206 }
1207 mt792x_init_acpi_sar_power(mt792x_hw_phy(hw), !sar);
1208
1209 return mt76_connac_mcu_set_rate_txpower(mphy);
1210 }
1211
mt7921_set_sar_specs(struct ieee80211_hw * hw,const struct cfg80211_sar_specs * sar)1212 static int mt7921_set_sar_specs(struct ieee80211_hw *hw,
1213 const struct cfg80211_sar_specs *sar)
1214 {
1215 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1216 int err;
1217
1218 mt792x_mutex_acquire(dev);
1219 err = mt7921_mcu_set_clc(dev, dev->mt76.alpha2,
1220 dev->country_ie_env);
1221 if (err < 0)
1222 goto out;
1223
1224 err = mt7921_set_tx_sar_pwr(hw, sar);
1225 out:
1226 mt792x_mutex_release(dev);
1227
1228 return err;
1229 }
1230
1231 static void
mt7921_channel_switch_beacon(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct cfg80211_chan_def * chandef)1232 mt7921_channel_switch_beacon(struct ieee80211_hw *hw,
1233 struct ieee80211_vif *vif,
1234 struct cfg80211_chan_def *chandef)
1235 {
1236 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1237
1238 mt792x_mutex_acquire(dev);
1239 mt7921_mcu_uni_add_beacon_offload(dev, hw, vif, true);
1240 mt792x_mutex_release(dev);
1241 }
1242
1243 static int
mt7921_start_ap(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf)1244 mt7921_start_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1245 struct ieee80211_bss_conf *link_conf)
1246 {
1247 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
1248 struct mt792x_phy *phy = mt792x_hw_phy(hw);
1249 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1250 int err;
1251
1252 mt792x_mutex_acquire(dev);
1253
1254 err = mt76_connac_mcu_uni_add_bss(phy->mt76, vif, &mvif->sta.wcid,
1255 true, mvif->mt76.ctx);
1256 if (err)
1257 goto out;
1258
1259 err = mt7921_mcu_set_bss_pm(dev, vif, true);
1260 if (err)
1261 goto out;
1262
1263 err = mt7921_mcu_sta_update(dev, NULL, vif, true,
1264 MT76_STA_INFO_STATE_NONE);
1265 out:
1266 mt792x_mutex_release(dev);
1267
1268 return err;
1269 }
1270
1271 static void
mt7921_stop_ap(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf)1272 mt7921_stop_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1273 struct ieee80211_bss_conf *link_conf)
1274 {
1275 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
1276 struct mt792x_phy *phy = mt792x_hw_phy(hw);
1277 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1278 int err;
1279
1280 mt792x_mutex_acquire(dev);
1281
1282 err = mt7921_mcu_set_bss_pm(dev, vif, false);
1283 if (err)
1284 goto out;
1285
1286 mt76_connac_mcu_uni_add_bss(phy->mt76, vif, &mvif->sta.wcid, false,
1287 mvif->mt76.ctx);
1288
1289 out:
1290 mt792x_mutex_release(dev);
1291 }
1292
1293 static int
mt7921_add_chanctx(struct ieee80211_hw * hw,struct ieee80211_chanctx_conf * ctx)1294 mt7921_add_chanctx(struct ieee80211_hw *hw,
1295 struct ieee80211_chanctx_conf *ctx)
1296 {
1297 return 0;
1298 }
1299
1300 static void
mt7921_remove_chanctx(struct ieee80211_hw * hw,struct ieee80211_chanctx_conf * ctx)1301 mt7921_remove_chanctx(struct ieee80211_hw *hw,
1302 struct ieee80211_chanctx_conf *ctx)
1303 {
1304 }
1305
mt7921_ctx_iter(void * priv,u8 * mac,struct ieee80211_vif * vif)1306 static void mt7921_ctx_iter(void *priv, u8 *mac,
1307 struct ieee80211_vif *vif)
1308 {
1309 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
1310 struct ieee80211_chanctx_conf *ctx = priv;
1311
1312 if (ctx != mvif->mt76.ctx)
1313 return;
1314
1315 if (vif->type == NL80211_IFTYPE_MONITOR)
1316 mt7921_mcu_config_sniffer(mvif, ctx);
1317 else
1318 mt76_connac_mcu_uni_set_chctx(mvif->phy->mt76, &mvif->mt76, ctx);
1319 }
1320
1321 static void
mt7921_change_chanctx(struct ieee80211_hw * hw,struct ieee80211_chanctx_conf * ctx,u32 changed)1322 mt7921_change_chanctx(struct ieee80211_hw *hw,
1323 struct ieee80211_chanctx_conf *ctx,
1324 u32 changed)
1325 {
1326 struct mt792x_phy *phy = mt792x_hw_phy(hw);
1327
1328 mt792x_mutex_acquire(phy->dev);
1329 ieee80211_iterate_active_interfaces(phy->mt76->hw,
1330 IEEE80211_IFACE_ITER_ACTIVE,
1331 mt7921_ctx_iter, ctx);
1332 mt792x_mutex_release(phy->dev);
1333 }
1334
mt7921_mgd_prepare_tx(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_prep_tx_info * info)1335 static void mt7921_mgd_prepare_tx(struct ieee80211_hw *hw,
1336 struct ieee80211_vif *vif,
1337 struct ieee80211_prep_tx_info *info)
1338 {
1339 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
1340 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1341 u16 duration = info->duration ? info->duration :
1342 jiffies_to_msecs(HZ);
1343
1344 mt792x_mutex_acquire(dev);
1345 mt7921_set_roc(mvif->phy, mvif, mvif->mt76.ctx->def.chan, duration,
1346 MT7921_ROC_REQ_JOIN);
1347 mt792x_mutex_release(dev);
1348 }
1349
mt7921_mgd_complete_tx(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_prep_tx_info * info)1350 static void mt7921_mgd_complete_tx(struct ieee80211_hw *hw,
1351 struct ieee80211_vif *vif,
1352 struct ieee80211_prep_tx_info *info)
1353 {
1354 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
1355
1356 mt7921_abort_roc(mvif->phy, mvif);
1357 }
1358
1359 const struct ieee80211_ops mt7921_ops = {
1360 .tx = mt792x_tx,
1361 .start = mt7921_start,
1362 .stop = mt792x_stop,
1363 .add_interface = mt7921_add_interface,
1364 .remove_interface = mt792x_remove_interface,
1365 .config = mt7921_config,
1366 .conf_tx = mt792x_conf_tx,
1367 .configure_filter = mt7921_configure_filter,
1368 .bss_info_changed = mt7921_bss_info_changed,
1369 .start_ap = mt7921_start_ap,
1370 .stop_ap = mt7921_stop_ap,
1371 .sta_state = mt7921_sta_state,
1372 .sta_pre_rcu_remove = mt76_sta_pre_rcu_remove,
1373 .set_key = mt7921_set_key,
1374 .sta_set_decap_offload = mt7921_sta_set_decap_offload,
1375 #if IS_ENABLED(CONFIG_IPV6)
1376 .ipv6_addr_change = mt7921_ipv6_addr_change,
1377 #endif /* CONFIG_IPV6 */
1378 .ampdu_action = mt7921_ampdu_action,
1379 .set_rts_threshold = mt7921_set_rts_threshold,
1380 .wake_tx_queue = mt76_wake_tx_queue,
1381 .release_buffered_frames = mt76_release_buffered_frames,
1382 .channel_switch_beacon = mt7921_channel_switch_beacon,
1383 .get_txpower = mt76_get_txpower,
1384 .get_stats = mt792x_get_stats,
1385 .get_et_sset_count = mt792x_get_et_sset_count,
1386 .get_et_strings = mt792x_get_et_strings,
1387 .get_et_stats = mt792x_get_et_stats,
1388 .get_tsf = mt792x_get_tsf,
1389 .set_tsf = mt792x_set_tsf,
1390 .get_survey = mt76_get_survey,
1391 .get_antenna = mt76_get_antenna,
1392 .set_antenna = mt7921_set_antenna,
1393 .set_coverage_class = mt792x_set_coverage_class,
1394 .hw_scan = mt7921_hw_scan,
1395 .cancel_hw_scan = mt7921_cancel_hw_scan,
1396 .sta_statistics = mt792x_sta_statistics,
1397 .sched_scan_start = mt7921_start_sched_scan,
1398 .sched_scan_stop = mt7921_stop_sched_scan,
1399 CFG80211_TESTMODE_CMD(mt7921_testmode_cmd)
1400 CFG80211_TESTMODE_DUMP(mt7921_testmode_dump)
1401 #ifdef CONFIG_PM
1402 .suspend = mt7921_suspend,
1403 .resume = mt7921_resume,
1404 .set_wakeup = mt792x_set_wakeup,
1405 .set_rekey_data = mt7921_set_rekey_data,
1406 #endif /* CONFIG_PM */
1407 .flush = mt792x_flush,
1408 .set_sar_specs = mt7921_set_sar_specs,
1409 .remain_on_channel = mt7921_remain_on_channel,
1410 .cancel_remain_on_channel = mt7921_cancel_remain_on_channel,
1411 .add_chanctx = mt7921_add_chanctx,
1412 .remove_chanctx = mt7921_remove_chanctx,
1413 .change_chanctx = mt7921_change_chanctx,
1414 .assign_vif_chanctx = mt792x_assign_vif_chanctx,
1415 .unassign_vif_chanctx = mt792x_unassign_vif_chanctx,
1416 .mgd_prepare_tx = mt7921_mgd_prepare_tx,
1417 .mgd_complete_tx = mt7921_mgd_complete_tx,
1418 };
1419 EXPORT_SYMBOL_GPL(mt7921_ops);
1420
1421 MODULE_DESCRIPTION("MediaTek MT7921 core driver");
1422 MODULE_LICENSE("Dual BSD/GPL");
1423 MODULE_AUTHOR("Sean Wang <sean.wang@mediatek.com>");
1424