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_packet_id_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 goto out;
523 }
524
525 mt76_wcid_key_setup(&dev->mt76, wcid, key);
526 err = mt76_connac_mcu_add_key(&dev->mt76, vif, &msta->bip,
527 key, MCU_UNI_CMD(STA_REC_UPDATE),
528 &msta->wcid, cmd);
529 if (err)
530 goto out;
531
532 if (key->cipher == WLAN_CIPHER_SUITE_WEP104 ||
533 key->cipher == WLAN_CIPHER_SUITE_WEP40)
534 err = mt76_connac_mcu_add_key(&dev->mt76, vif,
535 &mvif->wep_sta->bip,
536 key, MCU_UNI_CMD(STA_REC_UPDATE),
537 &mvif->wep_sta->wcid, cmd);
538 out:
539 mt792x_mutex_release(dev);
540
541 return err;
542 }
543
544 static void
mt7921_pm_interface_iter(void * priv,u8 * mac,struct ieee80211_vif * vif)545 mt7921_pm_interface_iter(void *priv, u8 *mac, struct ieee80211_vif *vif)
546 {
547 struct mt792x_dev *dev = priv;
548 struct ieee80211_hw *hw = mt76_hw(dev);
549 bool pm_enable = dev->pm.enable;
550 int err;
551
552 err = mt7921_mcu_set_beacon_filter(dev, vif, pm_enable);
553 if (err < 0)
554 return;
555
556 if (pm_enable) {
557 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER;
558 ieee80211_hw_set(hw, CONNECTION_MONITOR);
559 } else {
560 vif->driver_flags &= ~IEEE80211_VIF_BEACON_FILTER;
561 __clear_bit(IEEE80211_HW_CONNECTION_MONITOR, hw->flags);
562 }
563 }
564
565 static void
mt7921_sniffer_interface_iter(void * priv,u8 * mac,struct ieee80211_vif * vif)566 mt7921_sniffer_interface_iter(void *priv, u8 *mac, struct ieee80211_vif *vif)
567 {
568 struct mt792x_dev *dev = priv;
569 struct ieee80211_hw *hw = mt76_hw(dev);
570 struct mt76_connac_pm *pm = &dev->pm;
571 bool monitor = !!(hw->conf.flags & IEEE80211_CONF_MONITOR);
572
573 mt7921_mcu_set_sniffer(dev, vif, monitor);
574 pm->enable = pm->enable_user && !monitor;
575 pm->ds_enable = pm->ds_enable_user && !monitor;
576
577 mt76_connac_mcu_set_deep_sleep(&dev->mt76, pm->ds_enable);
578
579 if (monitor)
580 mt7921_mcu_set_beacon_filter(dev, vif, false);
581 }
582
mt7921_set_runtime_pm(struct mt792x_dev * dev)583 void mt7921_set_runtime_pm(struct mt792x_dev *dev)
584 {
585 struct ieee80211_hw *hw = mt76_hw(dev);
586 struct mt76_connac_pm *pm = &dev->pm;
587 bool monitor = !!(hw->conf.flags & IEEE80211_CONF_MONITOR);
588
589 pm->enable = pm->enable_user && !monitor;
590 ieee80211_iterate_active_interfaces(hw,
591 IEEE80211_IFACE_ITER_RESUME_ALL,
592 mt7921_pm_interface_iter, dev);
593 pm->ds_enable = pm->ds_enable_user && !monitor;
594 mt76_connac_mcu_set_deep_sleep(&dev->mt76, pm->ds_enable);
595 }
596
mt7921_config(struct ieee80211_hw * hw,u32 changed)597 static int mt7921_config(struct ieee80211_hw *hw, u32 changed)
598 {
599 struct mt792x_dev *dev = mt792x_hw_dev(hw);
600 struct mt792x_phy *phy = mt792x_hw_phy(hw);
601 int ret = 0;
602
603 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
604 ieee80211_stop_queues(hw);
605 ret = mt7921_set_channel(phy);
606 if (ret)
607 return ret;
608 ieee80211_wake_queues(hw);
609 }
610
611 mt792x_mutex_acquire(dev);
612
613 if (changed & IEEE80211_CONF_CHANGE_POWER) {
614 ret = mt7921_set_tx_sar_pwr(hw, NULL);
615 if (ret)
616 goto out;
617 }
618
619 if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
620 ieee80211_iterate_active_interfaces(hw,
621 IEEE80211_IFACE_ITER_RESUME_ALL,
622 mt7921_sniffer_interface_iter, dev);
623 }
624
625 out:
626 mt792x_mutex_release(dev);
627
628 return ret;
629 }
630
mt7921_configure_filter(struct ieee80211_hw * hw,unsigned int changed_flags,unsigned int * total_flags,u64 multicast)631 static void mt7921_configure_filter(struct ieee80211_hw *hw,
632 unsigned int changed_flags,
633 unsigned int *total_flags,
634 u64 multicast)
635 {
636 #define MT7921_FILTER_FCSFAIL BIT(2)
637 #define MT7921_FILTER_CONTROL BIT(5)
638 #define MT7921_FILTER_OTHER_BSS BIT(6)
639 #define MT7921_FILTER_ENABLE BIT(31)
640
641 struct mt792x_dev *dev = mt792x_hw_dev(hw);
642 u32 flags = MT7921_FILTER_ENABLE;
643
644 #define MT7921_FILTER(_fif, _type) do { \
645 if (*total_flags & (_fif)) \
646 flags |= MT7921_FILTER_##_type; \
647 } while (0)
648
649 MT7921_FILTER(FIF_FCSFAIL, FCSFAIL);
650 MT7921_FILTER(FIF_CONTROL, CONTROL);
651 MT7921_FILTER(FIF_OTHER_BSS, OTHER_BSS);
652
653 mt792x_mutex_acquire(dev);
654 mt7921_mcu_set_rxfilter(dev, flags, 0, 0);
655 mt792x_mutex_release(dev);
656
657 *total_flags &= (FIF_OTHER_BSS | FIF_FCSFAIL | FIF_CONTROL);
658 }
659
mt7921_bss_info_changed(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * info,u64 changed)660 static void mt7921_bss_info_changed(struct ieee80211_hw *hw,
661 struct ieee80211_vif *vif,
662 struct ieee80211_bss_conf *info,
663 u64 changed)
664 {
665 struct mt792x_phy *phy = mt792x_hw_phy(hw);
666 struct mt792x_dev *dev = mt792x_hw_dev(hw);
667
668 mt792x_mutex_acquire(dev);
669
670 if (changed & BSS_CHANGED_ERP_SLOT) {
671 int slottime = info->use_short_slot ? 9 : 20;
672
673 if (slottime != phy->slottime) {
674 phy->slottime = slottime;
675 mt792x_mac_set_timeing(phy);
676 }
677 }
678
679 if (changed & (BSS_CHANGED_BEACON |
680 BSS_CHANGED_BEACON_ENABLED))
681 mt7921_mcu_uni_add_beacon_offload(dev, hw, vif,
682 info->enable_beacon);
683
684 /* ensure that enable txcmd_mode after bss_info */
685 if (changed & (BSS_CHANGED_QOS | BSS_CHANGED_BEACON_ENABLED))
686 mt7921_mcu_set_tx(dev, vif);
687
688 if (changed & BSS_CHANGED_PS)
689 mt7921_mcu_uni_bss_ps(dev, vif);
690
691 if (changed & BSS_CHANGED_ASSOC) {
692 mt7921_mcu_sta_update(dev, NULL, vif, true,
693 MT76_STA_INFO_STATE_ASSOC);
694 mt7921_mcu_set_beacon_filter(dev, vif, vif->cfg.assoc);
695 }
696
697 if (changed & BSS_CHANGED_ARP_FILTER) {
698 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
699
700 mt76_connac_mcu_update_arp_filter(&dev->mt76, &mvif->mt76,
701 info);
702 }
703
704 mt792x_mutex_release(dev);
705 }
706
mt7921_mac_sta_add(struct mt76_dev * mdev,struct ieee80211_vif * vif,struct ieee80211_sta * sta)707 int mt7921_mac_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif,
708 struct ieee80211_sta *sta)
709 {
710 struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76);
711 struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv;
712 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
713 int ret, idx;
714
715 idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT792x_WTBL_STA - 1);
716 if (idx < 0)
717 return -ENOSPC;
718
719 INIT_LIST_HEAD(&msta->wcid.poll_list);
720 msta->vif = mvif;
721 msta->wcid.sta = 1;
722 msta->wcid.idx = idx;
723 msta->wcid.phy_idx = mvif->mt76.band_idx;
724 msta->wcid.tx_info |= MT_WCID_TX_INFO_SET;
725 msta->last_txs = jiffies;
726
727 ret = mt76_connac_pm_wake(&dev->mphy, &dev->pm);
728 if (ret)
729 return ret;
730
731 if (vif->type == NL80211_IFTYPE_STATION)
732 mvif->wep_sta = msta;
733
734 mt7921_mac_wtbl_update(dev, idx,
735 MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
736
737 ret = mt7921_mcu_sta_update(dev, sta, vif, true,
738 MT76_STA_INFO_STATE_NONE);
739 if (ret)
740 return ret;
741
742 mt76_connac_power_save_sched(&dev->mphy, &dev->pm);
743
744 return 0;
745 }
746 EXPORT_SYMBOL_GPL(mt7921_mac_sta_add);
747
mt7921_mac_sta_assoc(struct mt76_dev * mdev,struct ieee80211_vif * vif,struct ieee80211_sta * sta)748 void mt7921_mac_sta_assoc(struct mt76_dev *mdev, struct ieee80211_vif *vif,
749 struct ieee80211_sta *sta)
750 {
751 struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76);
752 struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv;
753 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
754
755 mt792x_mutex_acquire(dev);
756
757 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls)
758 mt76_connac_mcu_uni_add_bss(&dev->mphy, vif, &mvif->sta.wcid,
759 true, mvif->ctx);
760
761 ewma_avg_signal_init(&msta->avg_ack_signal);
762
763 mt7921_mac_wtbl_update(dev, msta->wcid.idx,
764 MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
765 memset(msta->airtime_ac, 0, sizeof(msta->airtime_ac));
766
767 mt7921_mcu_sta_update(dev, sta, vif, true, MT76_STA_INFO_STATE_ASSOC);
768
769 mt792x_mutex_release(dev);
770 }
771 EXPORT_SYMBOL_GPL(mt7921_mac_sta_assoc);
772
mt7921_mac_sta_remove(struct mt76_dev * mdev,struct ieee80211_vif * vif,struct ieee80211_sta * sta)773 void mt7921_mac_sta_remove(struct mt76_dev *mdev, struct ieee80211_vif *vif,
774 struct ieee80211_sta *sta)
775 {
776 struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76);
777 struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv;
778
779 mt76_connac_free_pending_tx_skbs(&dev->pm, &msta->wcid);
780 mt76_connac_pm_wake(&dev->mphy, &dev->pm);
781
782 mt7921_mcu_sta_update(dev, sta, vif, false, MT76_STA_INFO_STATE_NONE);
783 mt7921_mac_wtbl_update(dev, msta->wcid.idx,
784 MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
785
786 if (vif->type == NL80211_IFTYPE_STATION) {
787 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
788
789 mvif->wep_sta = NULL;
790 ewma_rssi_init(&mvif->rssi);
791 if (!sta->tdls)
792 mt76_connac_mcu_uni_add_bss(&dev->mphy, vif,
793 &mvif->sta.wcid, false,
794 mvif->ctx);
795 }
796
797 spin_lock_bh(&dev->mt76.sta_poll_lock);
798 if (!list_empty(&msta->wcid.poll_list))
799 list_del_init(&msta->wcid.poll_list);
800 spin_unlock_bh(&dev->mt76.sta_poll_lock);
801
802 mt76_connac_power_save_sched(&dev->mphy, &dev->pm);
803 }
804 EXPORT_SYMBOL_GPL(mt7921_mac_sta_remove);
805
mt7921_set_rts_threshold(struct ieee80211_hw * hw,u32 val)806 static int mt7921_set_rts_threshold(struct ieee80211_hw *hw, u32 val)
807 {
808 struct mt792x_dev *dev = mt792x_hw_dev(hw);
809
810 mt792x_mutex_acquire(dev);
811 mt76_connac_mcu_set_rts_thresh(&dev->mt76, val, 0);
812 mt792x_mutex_release(dev);
813
814 return 0;
815 }
816
817 static int
mt7921_ampdu_action(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_ampdu_params * params)818 mt7921_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
819 struct ieee80211_ampdu_params *params)
820 {
821 enum ieee80211_ampdu_mlme_action action = params->action;
822 struct mt792x_dev *dev = mt792x_hw_dev(hw);
823 struct ieee80211_sta *sta = params->sta;
824 struct ieee80211_txq *txq = sta->txq[params->tid];
825 struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv;
826 u16 tid = params->tid;
827 u16 ssn = params->ssn;
828 struct mt76_txq *mtxq;
829 int ret = 0;
830
831 if (!txq)
832 return -EINVAL;
833
834 mtxq = (struct mt76_txq *)txq->drv_priv;
835
836 mt792x_mutex_acquire(dev);
837 switch (action) {
838 case IEEE80211_AMPDU_RX_START:
839 mt76_rx_aggr_start(&dev->mt76, &msta->wcid, tid, ssn,
840 params->buf_size);
841 mt7921_mcu_uni_rx_ba(dev, params, true);
842 break;
843 case IEEE80211_AMPDU_RX_STOP:
844 mt76_rx_aggr_stop(&dev->mt76, &msta->wcid, tid);
845 mt7921_mcu_uni_rx_ba(dev, params, false);
846 break;
847 case IEEE80211_AMPDU_TX_OPERATIONAL:
848 mtxq->aggr = true;
849 mtxq->send_bar = false;
850 mt7921_mcu_uni_tx_ba(dev, params, true);
851 break;
852 case IEEE80211_AMPDU_TX_STOP_FLUSH:
853 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
854 mtxq->aggr = false;
855 clear_bit(tid, &msta->wcid.ampdu_state);
856 mt7921_mcu_uni_tx_ba(dev, params, false);
857 break;
858 case IEEE80211_AMPDU_TX_START:
859 set_bit(tid, &msta->wcid.ampdu_state);
860 ret = IEEE80211_AMPDU_TX_START_IMMEDIATE;
861 break;
862 case IEEE80211_AMPDU_TX_STOP_CONT:
863 mtxq->aggr = false;
864 clear_bit(tid, &msta->wcid.ampdu_state);
865 mt7921_mcu_uni_tx_ba(dev, params, false);
866 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
867 break;
868 }
869 mt792x_mutex_release(dev);
870
871 return ret;
872 }
873
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)874 static int mt7921_sta_state(struct ieee80211_hw *hw,
875 struct ieee80211_vif *vif,
876 struct ieee80211_sta *sta,
877 enum ieee80211_sta_state old_state,
878 enum ieee80211_sta_state new_state)
879 {
880 struct mt792x_dev *dev = mt792x_hw_dev(hw);
881
882 if (dev->pm.ds_enable) {
883 mt792x_mutex_acquire(dev);
884 mt76_connac_sta_state_dp(&dev->mt76, old_state, new_state);
885 mt792x_mutex_release(dev);
886 }
887
888 return mt76_sta_state(hw, vif, sta, old_state, new_state);
889 }
890
mt7921_scan_work(struct work_struct * work)891 void mt7921_scan_work(struct work_struct *work)
892 {
893 struct mt792x_phy *phy;
894
895 phy = (struct mt792x_phy *)container_of(work, struct mt792x_phy,
896 scan_work.work);
897
898 while (true) {
899 struct mt76_connac2_mcu_rxd *rxd;
900 struct sk_buff *skb;
901
902 spin_lock_bh(&phy->dev->mt76.lock);
903 skb = __skb_dequeue(&phy->scan_event_list);
904 spin_unlock_bh(&phy->dev->mt76.lock);
905
906 if (!skb)
907 break;
908
909 rxd = (struct mt76_connac2_mcu_rxd *)skb->data;
910 if (rxd->eid == MCU_EVENT_SCHED_SCAN_DONE) {
911 ieee80211_sched_scan_results(phy->mt76->hw);
912 } else if (test_and_clear_bit(MT76_HW_SCANNING,
913 &phy->mt76->state)) {
914 struct cfg80211_scan_info info = {
915 .aborted = false,
916 };
917
918 ieee80211_scan_completed(phy->mt76->hw, &info);
919 }
920 dev_kfree_skb(skb);
921 }
922 }
923
924 static int
mt7921_hw_scan(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_scan_request * req)925 mt7921_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
926 struct ieee80211_scan_request *req)
927 {
928 struct mt792x_dev *dev = mt792x_hw_dev(hw);
929 struct mt76_phy *mphy = hw->priv;
930 int err;
931
932 mt792x_mutex_acquire(dev);
933 err = mt76_connac_mcu_hw_scan(mphy, vif, req);
934 mt792x_mutex_release(dev);
935
936 return err;
937 }
938
939 static void
mt7921_cancel_hw_scan(struct ieee80211_hw * hw,struct ieee80211_vif * vif)940 mt7921_cancel_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
941 {
942 struct mt792x_dev *dev = mt792x_hw_dev(hw);
943 struct mt76_phy *mphy = hw->priv;
944
945 mt792x_mutex_acquire(dev);
946 mt76_connac_mcu_cancel_hw_scan(mphy, vif);
947 mt792x_mutex_release(dev);
948 }
949
950 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)951 mt7921_start_sched_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
952 struct cfg80211_sched_scan_request *req,
953 struct ieee80211_scan_ies *ies)
954 {
955 struct mt792x_dev *dev = mt792x_hw_dev(hw);
956 struct mt76_phy *mphy = hw->priv;
957 int err;
958
959 mt792x_mutex_acquire(dev);
960
961 err = mt76_connac_mcu_sched_scan_req(mphy, vif, req);
962 if (err < 0)
963 goto out;
964
965 err = mt76_connac_mcu_sched_scan_enable(mphy, vif, true);
966 out:
967 mt792x_mutex_release(dev);
968
969 return err;
970 }
971
972 static int
mt7921_stop_sched_scan(struct ieee80211_hw * hw,struct ieee80211_vif * vif)973 mt7921_stop_sched_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
974 {
975 struct mt792x_dev *dev = mt792x_hw_dev(hw);
976 struct mt76_phy *mphy = hw->priv;
977 int err;
978
979 mt792x_mutex_acquire(dev);
980 err = mt76_connac_mcu_sched_scan_enable(mphy, vif, false);
981 mt792x_mutex_release(dev);
982
983 return err;
984 }
985
986 static int
mt7921_set_antenna(struct ieee80211_hw * hw,u32 tx_ant,u32 rx_ant)987 mt7921_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant)
988 {
989 struct mt792x_dev *dev = mt792x_hw_dev(hw);
990 struct mt792x_phy *phy = mt792x_hw_phy(hw);
991 int max_nss = hweight8(hw->wiphy->available_antennas_tx);
992
993 if (!tx_ant || tx_ant != rx_ant || ffs(tx_ant) > max_nss)
994 return -EINVAL;
995
996 if ((BIT(hweight8(tx_ant)) - 1) != tx_ant)
997 return -EINVAL;
998
999 mt792x_mutex_acquire(dev);
1000
1001 phy->mt76->antenna_mask = tx_ant;
1002 phy->mt76->chainmask = tx_ant;
1003
1004 mt76_set_stream_caps(phy->mt76, true);
1005 mt7921_set_stream_he_caps(phy);
1006
1007 mt792x_mutex_release(dev);
1008
1009 return 0;
1010 }
1011
1012 #ifdef CONFIG_PM
mt7921_suspend(struct ieee80211_hw * hw,struct cfg80211_wowlan * wowlan)1013 static int mt7921_suspend(struct ieee80211_hw *hw,
1014 struct cfg80211_wowlan *wowlan)
1015 {
1016 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1017 struct mt792x_phy *phy = mt792x_hw_phy(hw);
1018
1019 cancel_delayed_work_sync(&phy->scan_work);
1020 cancel_delayed_work_sync(&phy->mt76->mac_work);
1021
1022 cancel_delayed_work_sync(&dev->pm.ps_work);
1023 mt76_connac_free_pending_tx_skbs(&dev->pm, NULL);
1024
1025 mt792x_mutex_acquire(dev);
1026
1027 clear_bit(MT76_STATE_RUNNING, &phy->mt76->state);
1028 ieee80211_iterate_active_interfaces(hw,
1029 IEEE80211_IFACE_ITER_RESUME_ALL,
1030 mt7921_mcu_set_suspend_iter,
1031 &dev->mphy);
1032
1033 mt792x_mutex_release(dev);
1034
1035 return 0;
1036 }
1037
mt7921_resume(struct ieee80211_hw * hw)1038 static int mt7921_resume(struct ieee80211_hw *hw)
1039 {
1040 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1041 struct mt792x_phy *phy = mt792x_hw_phy(hw);
1042
1043 mt792x_mutex_acquire(dev);
1044
1045 set_bit(MT76_STATE_RUNNING, &phy->mt76->state);
1046 ieee80211_iterate_active_interfaces(hw,
1047 IEEE80211_IFACE_ITER_RESUME_ALL,
1048 mt76_connac_mcu_set_suspend_iter,
1049 &dev->mphy);
1050
1051 ieee80211_queue_delayed_work(hw, &phy->mt76->mac_work,
1052 MT792x_WATCHDOG_TIME);
1053
1054 mt792x_mutex_release(dev);
1055
1056 return 0;
1057 }
1058
mt7921_set_rekey_data(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct cfg80211_gtk_rekey_data * data)1059 static void mt7921_set_rekey_data(struct ieee80211_hw *hw,
1060 struct ieee80211_vif *vif,
1061 struct cfg80211_gtk_rekey_data *data)
1062 {
1063 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1064
1065 mt792x_mutex_acquire(dev);
1066 mt76_connac_mcu_update_gtk_rekey(hw, vif, data);
1067 mt792x_mutex_release(dev);
1068 }
1069 #endif /* CONFIG_PM */
1070
mt7921_sta_set_decap_offload(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,bool enabled)1071 static void mt7921_sta_set_decap_offload(struct ieee80211_hw *hw,
1072 struct ieee80211_vif *vif,
1073 struct ieee80211_sta *sta,
1074 bool enabled)
1075 {
1076 struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv;
1077 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1078
1079 mt792x_mutex_acquire(dev);
1080
1081 if (enabled)
1082 set_bit(MT_WCID_FLAG_HDR_TRANS, &msta->wcid.flags);
1083 else
1084 clear_bit(MT_WCID_FLAG_HDR_TRANS, &msta->wcid.flags);
1085
1086 mt76_connac_mcu_sta_update_hdr_trans(&dev->mt76, vif, &msta->wcid,
1087 MCU_UNI_CMD(STA_REC_UPDATE));
1088
1089 mt792x_mutex_release(dev);
1090 }
1091
1092 #if IS_ENABLED(CONFIG_IPV6)
mt7921_ipv6_addr_change(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct inet6_dev * idev)1093 static void mt7921_ipv6_addr_change(struct ieee80211_hw *hw,
1094 struct ieee80211_vif *vif,
1095 struct inet6_dev *idev)
1096 {
1097 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
1098 struct mt792x_dev *dev = mvif->phy->dev;
1099 struct inet6_ifaddr *ifa;
1100 struct in6_addr ns_addrs[IEEE80211_BSS_ARP_ADDR_LIST_LEN];
1101 struct sk_buff *skb;
1102 u8 i, idx = 0;
1103
1104 struct {
1105 struct {
1106 u8 bss_idx;
1107 u8 pad[3];
1108 } __packed hdr;
1109 struct mt76_connac_arpns_tlv arpns;
1110 } req_hdr = {
1111 .hdr = {
1112 .bss_idx = mvif->mt76.idx,
1113 },
1114 .arpns = {
1115 .tag = cpu_to_le16(UNI_OFFLOAD_OFFLOAD_ND),
1116 .mode = 2, /* update */
1117 .option = 1, /* update only */
1118 },
1119 };
1120
1121 read_lock_bh(&idev->lock);
1122 list_for_each_entry(ifa, &idev->addr_list, if_list) {
1123 if (ifa->flags & IFA_F_TENTATIVE)
1124 continue;
1125 ns_addrs[idx] = ifa->addr;
1126 if (++idx >= IEEE80211_BSS_ARP_ADDR_LIST_LEN)
1127 break;
1128 }
1129 read_unlock_bh(&idev->lock);
1130
1131 if (!idx)
1132 return;
1133
1134 req_hdr.arpns.ips_num = idx;
1135 req_hdr.arpns.len = cpu_to_le16(sizeof(struct mt76_connac_arpns_tlv)
1136 + idx * sizeof(struct in6_addr));
1137 skb = __mt76_mcu_msg_alloc(&dev->mt76, &req_hdr,
1138 sizeof(req_hdr) + idx * sizeof(struct in6_addr),
1139 sizeof(req_hdr), GFP_ATOMIC);
1140 if (!skb)
1141 return;
1142
1143 for (i = 0; i < idx; i++)
1144 skb_put_data(skb, &ns_addrs[i].in6_u, sizeof(struct in6_addr));
1145
1146 skb_queue_tail(&dev->ipv6_ns_list, skb);
1147
1148 ieee80211_queue_work(dev->mt76.hw, &dev->ipv6_ns_work);
1149 }
1150 #endif
1151
mt7921_set_tx_sar_pwr(struct ieee80211_hw * hw,const struct cfg80211_sar_specs * sar)1152 int mt7921_set_tx_sar_pwr(struct ieee80211_hw *hw,
1153 const struct cfg80211_sar_specs *sar)
1154 {
1155 struct mt76_phy *mphy = hw->priv;
1156
1157 if (sar) {
1158 int err = mt76_init_sar_power(hw, sar);
1159
1160 if (err)
1161 return err;
1162 }
1163 mt792x_init_acpi_sar_power(mt792x_hw_phy(hw), !sar);
1164
1165 return mt76_connac_mcu_set_rate_txpower(mphy);
1166 }
1167
mt7921_set_sar_specs(struct ieee80211_hw * hw,const struct cfg80211_sar_specs * sar)1168 static int mt7921_set_sar_specs(struct ieee80211_hw *hw,
1169 const struct cfg80211_sar_specs *sar)
1170 {
1171 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1172 int err;
1173
1174 mt792x_mutex_acquire(dev);
1175 err = mt7921_mcu_set_clc(dev, dev->mt76.alpha2,
1176 dev->country_ie_env);
1177 if (err < 0)
1178 goto out;
1179
1180 err = mt7921_set_tx_sar_pwr(hw, sar);
1181 out:
1182 mt792x_mutex_release(dev);
1183
1184 return err;
1185 }
1186
1187 static void
mt7921_channel_switch_beacon(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct cfg80211_chan_def * chandef)1188 mt7921_channel_switch_beacon(struct ieee80211_hw *hw,
1189 struct ieee80211_vif *vif,
1190 struct cfg80211_chan_def *chandef)
1191 {
1192 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1193
1194 mt792x_mutex_acquire(dev);
1195 mt7921_mcu_uni_add_beacon_offload(dev, hw, vif, true);
1196 mt792x_mutex_release(dev);
1197 }
1198
1199 static int
mt7921_start_ap(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf)1200 mt7921_start_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1201 struct ieee80211_bss_conf *link_conf)
1202 {
1203 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
1204 struct mt792x_phy *phy = mt792x_hw_phy(hw);
1205 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1206 int err;
1207
1208 mt792x_mutex_acquire(dev);
1209
1210 err = mt76_connac_mcu_uni_add_bss(phy->mt76, vif, &mvif->sta.wcid,
1211 true, mvif->ctx);
1212 if (err)
1213 goto out;
1214
1215 err = mt7921_mcu_set_bss_pm(dev, vif, true);
1216 if (err)
1217 goto out;
1218
1219 err = mt7921_mcu_sta_update(dev, NULL, vif, true,
1220 MT76_STA_INFO_STATE_NONE);
1221 out:
1222 mt792x_mutex_release(dev);
1223
1224 return err;
1225 }
1226
1227 static void
mt7921_stop_ap(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf)1228 mt7921_stop_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1229 struct ieee80211_bss_conf *link_conf)
1230 {
1231 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
1232 struct mt792x_phy *phy = mt792x_hw_phy(hw);
1233 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1234 int err;
1235
1236 mt792x_mutex_acquire(dev);
1237
1238 err = mt7921_mcu_set_bss_pm(dev, vif, false);
1239 if (err)
1240 goto out;
1241
1242 mt76_connac_mcu_uni_add_bss(phy->mt76, vif, &mvif->sta.wcid, false,
1243 mvif->ctx);
1244
1245 out:
1246 mt792x_mutex_release(dev);
1247 }
1248
1249 static int
mt7921_add_chanctx(struct ieee80211_hw * hw,struct ieee80211_chanctx_conf * ctx)1250 mt7921_add_chanctx(struct ieee80211_hw *hw,
1251 struct ieee80211_chanctx_conf *ctx)
1252 {
1253 return 0;
1254 }
1255
1256 static void
mt7921_remove_chanctx(struct ieee80211_hw * hw,struct ieee80211_chanctx_conf * ctx)1257 mt7921_remove_chanctx(struct ieee80211_hw *hw,
1258 struct ieee80211_chanctx_conf *ctx)
1259 {
1260 }
1261
mt7921_ctx_iter(void * priv,u8 * mac,struct ieee80211_vif * vif)1262 static void mt7921_ctx_iter(void *priv, u8 *mac,
1263 struct ieee80211_vif *vif)
1264 {
1265 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
1266 struct ieee80211_chanctx_conf *ctx = priv;
1267
1268 if (ctx != mvif->ctx)
1269 return;
1270
1271 if (vif->type == NL80211_IFTYPE_MONITOR)
1272 mt7921_mcu_config_sniffer(mvif, ctx);
1273 else
1274 mt76_connac_mcu_uni_set_chctx(mvif->phy->mt76, &mvif->mt76, ctx);
1275 }
1276
1277 static void
mt7921_change_chanctx(struct ieee80211_hw * hw,struct ieee80211_chanctx_conf * ctx,u32 changed)1278 mt7921_change_chanctx(struct ieee80211_hw *hw,
1279 struct ieee80211_chanctx_conf *ctx,
1280 u32 changed)
1281 {
1282 struct mt792x_phy *phy = mt792x_hw_phy(hw);
1283
1284 mt792x_mutex_acquire(phy->dev);
1285 ieee80211_iterate_active_interfaces(phy->mt76->hw,
1286 IEEE80211_IFACE_ITER_ACTIVE,
1287 mt7921_ctx_iter, ctx);
1288 mt792x_mutex_release(phy->dev);
1289 }
1290
mt7921_mgd_prepare_tx(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_prep_tx_info * info)1291 static void mt7921_mgd_prepare_tx(struct ieee80211_hw *hw,
1292 struct ieee80211_vif *vif,
1293 struct ieee80211_prep_tx_info *info)
1294 {
1295 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
1296 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1297 u16 duration = info->duration ? info->duration :
1298 jiffies_to_msecs(HZ);
1299
1300 mt792x_mutex_acquire(dev);
1301 mt7921_set_roc(mvif->phy, mvif, mvif->ctx->def.chan, duration,
1302 MT7921_ROC_REQ_JOIN);
1303 mt792x_mutex_release(dev);
1304 }
1305
mt7921_mgd_complete_tx(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_prep_tx_info * info)1306 static void mt7921_mgd_complete_tx(struct ieee80211_hw *hw,
1307 struct ieee80211_vif *vif,
1308 struct ieee80211_prep_tx_info *info)
1309 {
1310 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
1311
1312 mt7921_abort_roc(mvif->phy, mvif);
1313 }
1314
1315 const struct ieee80211_ops mt7921_ops = {
1316 .tx = mt792x_tx,
1317 .start = mt7921_start,
1318 .stop = mt7921_stop,
1319 .add_interface = mt7921_add_interface,
1320 .remove_interface = mt792x_remove_interface,
1321 .config = mt7921_config,
1322 .conf_tx = mt792x_conf_tx,
1323 .configure_filter = mt7921_configure_filter,
1324 .bss_info_changed = mt7921_bss_info_changed,
1325 .start_ap = mt7921_start_ap,
1326 .stop_ap = mt7921_stop_ap,
1327 .sta_state = mt7921_sta_state,
1328 .sta_pre_rcu_remove = mt76_sta_pre_rcu_remove,
1329 .set_key = mt7921_set_key,
1330 .sta_set_decap_offload = mt7921_sta_set_decap_offload,
1331 #if IS_ENABLED(CONFIG_IPV6)
1332 .ipv6_addr_change = mt7921_ipv6_addr_change,
1333 #endif /* CONFIG_IPV6 */
1334 .ampdu_action = mt7921_ampdu_action,
1335 .set_rts_threshold = mt7921_set_rts_threshold,
1336 .wake_tx_queue = mt76_wake_tx_queue,
1337 .release_buffered_frames = mt76_release_buffered_frames,
1338 .channel_switch_beacon = mt7921_channel_switch_beacon,
1339 .get_txpower = mt76_get_txpower,
1340 .get_stats = mt792x_get_stats,
1341 .get_et_sset_count = mt792x_get_et_sset_count,
1342 .get_et_strings = mt792x_get_et_strings,
1343 .get_et_stats = mt792x_get_et_stats,
1344 .get_tsf = mt792x_get_tsf,
1345 .set_tsf = mt792x_set_tsf,
1346 .get_survey = mt76_get_survey,
1347 .get_antenna = mt76_get_antenna,
1348 .set_antenna = mt7921_set_antenna,
1349 .set_coverage_class = mt792x_set_coverage_class,
1350 .hw_scan = mt7921_hw_scan,
1351 .cancel_hw_scan = mt7921_cancel_hw_scan,
1352 .sta_statistics = mt792x_sta_statistics,
1353 .sched_scan_start = mt7921_start_sched_scan,
1354 .sched_scan_stop = mt7921_stop_sched_scan,
1355 CFG80211_TESTMODE_CMD(mt7921_testmode_cmd)
1356 CFG80211_TESTMODE_DUMP(mt7921_testmode_dump)
1357 #ifdef CONFIG_PM
1358 .suspend = mt7921_suspend,
1359 .resume = mt7921_resume,
1360 .set_wakeup = mt792x_set_wakeup,
1361 .set_rekey_data = mt7921_set_rekey_data,
1362 #endif /* CONFIG_PM */
1363 .flush = mt792x_flush,
1364 .set_sar_specs = mt7921_set_sar_specs,
1365 .remain_on_channel = mt7921_remain_on_channel,
1366 .cancel_remain_on_channel = mt7921_cancel_remain_on_channel,
1367 .add_chanctx = mt7921_add_chanctx,
1368 .remove_chanctx = mt7921_remove_chanctx,
1369 .change_chanctx = mt7921_change_chanctx,
1370 .assign_vif_chanctx = mt792x_assign_vif_chanctx,
1371 .unassign_vif_chanctx = mt792x_unassign_vif_chanctx,
1372 .mgd_prepare_tx = mt7921_mgd_prepare_tx,
1373 .mgd_complete_tx = mt7921_mgd_complete_tx,
1374 };
1375 EXPORT_SYMBOL_GPL(mt7921_ops);
1376
1377 MODULE_LICENSE("Dual BSD/GPL");
1378 MODULE_AUTHOR("Sean Wang <sean.wang@mediatek.com>");
1379