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
87 if (is_mt7922(phy->mt76->dev)) {
88 he_cap_elem->phy_cap_info[0] |=
89 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G;
90 }
91 break;
92 case NL80211_IFTYPE_STATION:
93 he_cap_elem->mac_cap_info[1] |=
94 IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US;
95
96 if (band == NL80211_BAND_2GHZ)
97 he_cap_elem->phy_cap_info[0] |=
98 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_RU_MAPPING_IN_2G;
99 else
100 he_cap_elem->phy_cap_info[0] |=
101 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_RU_MAPPING_IN_5G;
102
103 he_cap_elem->phy_cap_info[1] |=
104 IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A |
105 IEEE80211_HE_PHY_CAP1_HE_LTF_AND_GI_FOR_HE_PPDUS_0_8US;
106 he_cap_elem->phy_cap_info[3] |=
107 IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK |
108 IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK;
109 he_cap_elem->phy_cap_info[4] |=
110 IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE |
111 IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_4;
112 he_cap_elem->phy_cap_info[5] |=
113 IEEE80211_HE_PHY_CAP5_NG16_SU_FEEDBACK |
114 IEEE80211_HE_PHY_CAP5_NG16_MU_FEEDBACK;
115 he_cap_elem->phy_cap_info[6] |=
116 IEEE80211_HE_PHY_CAP6_CODEBOOK_SIZE_42_SU |
117 IEEE80211_HE_PHY_CAP6_CODEBOOK_SIZE_75_MU |
118 IEEE80211_HE_PHY_CAP6_TRIG_CQI_FB |
119 IEEE80211_HE_PHY_CAP6_PARTIAL_BW_EXT_RANGE |
120 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT;
121 he_cap_elem->phy_cap_info[7] |=
122 IEEE80211_HE_PHY_CAP7_POWER_BOOST_FACTOR_SUPP |
123 IEEE80211_HE_PHY_CAP7_HE_SU_MU_PPDU_4XLTF_AND_08_US_GI;
124 he_cap_elem->phy_cap_info[8] |=
125 IEEE80211_HE_PHY_CAP8_20MHZ_IN_40MHZ_HE_PPDU_IN_2G |
126 IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_484;
127 he_cap_elem->phy_cap_info[9] |=
128 IEEE80211_HE_PHY_CAP9_LONGER_THAN_16_SIGB_OFDM_SYM |
129 IEEE80211_HE_PHY_CAP9_NON_TRIGGERED_CQI_FEEDBACK |
130 IEEE80211_HE_PHY_CAP9_TX_1024_QAM_LESS_THAN_242_TONE_RU |
131 IEEE80211_HE_PHY_CAP9_RX_1024_QAM_LESS_THAN_242_TONE_RU |
132 IEEE80211_HE_PHY_CAP9_RX_FULL_BW_SU_USING_MU_WITH_COMP_SIGB |
133 IEEE80211_HE_PHY_CAP9_RX_FULL_BW_SU_USING_MU_WITH_NON_COMP_SIGB;
134
135 if (is_mt7922(phy->mt76->dev)) {
136 he_cap_elem->phy_cap_info[0] |=
137 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G;
138 he_cap_elem->phy_cap_info[8] |=
139 IEEE80211_HE_PHY_CAP8_20MHZ_IN_160MHZ_HE_PPDU |
140 IEEE80211_HE_PHY_CAP8_80MHZ_IN_160MHZ_HE_PPDU;
141 }
142 break;
143 }
144
145 he_mcs->rx_mcs_80 = cpu_to_le16(mcs_map);
146 he_mcs->tx_mcs_80 = cpu_to_le16(mcs_map);
147 if (is_mt7922(phy->mt76->dev)) {
148 he_mcs->rx_mcs_160 = cpu_to_le16(mcs_map);
149 he_mcs->tx_mcs_160 = cpu_to_le16(mcs_map);
150 }
151
152 memset(he_cap->ppe_thres, 0, sizeof(he_cap->ppe_thres));
153 if (he_cap_elem->phy_cap_info[6] &
154 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) {
155 mt76_connac_gen_ppe_thresh(he_cap->ppe_thres, nss);
156 } else {
157 he_cap_elem->phy_cap_info[9] |=
158 u8_encode_bits(IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_16US,
159 IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK);
160 }
161
162 if (band == NL80211_BAND_6GHZ) {
163 struct ieee80211_supported_band *sband =
164 &phy->mt76->sband_5g.sband;
165 struct ieee80211_sta_vht_cap *vht_cap = &sband->vht_cap;
166 struct ieee80211_sta_ht_cap *ht_cap = &sband->ht_cap;
167 u32 exp;
168 u16 cap;
169
170 cap = u16_encode_bits(ht_cap->ampdu_density,
171 IEEE80211_HE_6GHZ_CAP_MIN_MPDU_START);
172 exp = u32_get_bits(vht_cap->cap,
173 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK);
174 cap |= u16_encode_bits(exp,
175 IEEE80211_HE_6GHZ_CAP_MAX_AMPDU_LEN_EXP);
176 exp = u32_get_bits(vht_cap->cap,
177 IEEE80211_VHT_CAP_MAX_MPDU_MASK);
178 cap |= u16_encode_bits(exp,
179 IEEE80211_HE_6GHZ_CAP_MAX_MPDU_LEN);
180 if (vht_cap->cap & IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN)
181 cap |= IEEE80211_HE_6GHZ_CAP_TX_ANTPAT_CONS;
182 if (vht_cap->cap & IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN)
183 cap |= IEEE80211_HE_6GHZ_CAP_RX_ANTPAT_CONS;
184
185 data[idx].he_6ghz_capa.capa = cpu_to_le16(cap);
186 }
187 idx++;
188 }
189
190 return idx;
191 }
192
mt7921_set_stream_he_caps(struct mt792x_phy * phy)193 void mt7921_set_stream_he_caps(struct mt792x_phy *phy)
194 {
195 struct ieee80211_sband_iftype_data *data;
196 struct ieee80211_supported_band *band;
197 int n;
198
199 if (phy->mt76->cap.has_2ghz) {
200 data = phy->iftype[NL80211_BAND_2GHZ];
201 n = mt7921_init_he_caps(phy, NL80211_BAND_2GHZ, data);
202
203 band = &phy->mt76->sband_2g.sband;
204 band->iftype_data = data;
205 band->n_iftype_data = n;
206 }
207
208 if (phy->mt76->cap.has_5ghz) {
209 data = phy->iftype[NL80211_BAND_5GHZ];
210 n = mt7921_init_he_caps(phy, NL80211_BAND_5GHZ, data);
211
212 band = &phy->mt76->sband_5g.sband;
213 band->iftype_data = data;
214 band->n_iftype_data = n;
215
216 if (phy->mt76->cap.has_6ghz) {
217 data = phy->iftype[NL80211_BAND_6GHZ];
218 n = mt7921_init_he_caps(phy, NL80211_BAND_6GHZ, data);
219
220 band = &phy->mt76->sband_6g.sband;
221 band->iftype_data = data;
222 band->n_iftype_data = n;
223 }
224 }
225 }
226
__mt7921_start(struct mt792x_phy * phy)227 int __mt7921_start(struct mt792x_phy *phy)
228 {
229 struct mt76_phy *mphy = phy->mt76;
230 int err;
231
232 err = mt76_connac_mcu_set_mac_enable(mphy->dev, 0, true, false);
233 if (err)
234 return err;
235
236 err = mt76_connac_mcu_set_channel_domain(mphy);
237 if (err)
238 return err;
239
240 err = mt7921_mcu_set_chan_info(phy, MCU_EXT_CMD(SET_RX_PATH));
241 if (err)
242 return err;
243
244 err = mt7921_set_tx_sar_pwr(mphy->hw, NULL);
245 if (err)
246 return err;
247
248 mt792x_mac_reset_counters(phy);
249 set_bit(MT76_STATE_RUNNING, &mphy->state);
250
251 ieee80211_queue_delayed_work(mphy->hw, &mphy->mac_work,
252 MT792x_WATCHDOG_TIME);
253
254 return 0;
255 }
256 EXPORT_SYMBOL_GPL(__mt7921_start);
257
mt7921_start(struct ieee80211_hw * hw)258 static int mt7921_start(struct ieee80211_hw *hw)
259 {
260 struct mt792x_phy *phy = mt792x_hw_phy(hw);
261 int err;
262
263 mt792x_mutex_acquire(phy->dev);
264 err = __mt7921_start(phy);
265 mt792x_mutex_release(phy->dev);
266
267 return err;
268 }
269
mt7921_stop(struct ieee80211_hw * hw)270 void mt7921_stop(struct ieee80211_hw *hw)
271 {
272 struct mt792x_dev *dev = mt792x_hw_dev(hw);
273 struct mt792x_phy *phy = mt792x_hw_phy(hw);
274
275 cancel_delayed_work_sync(&phy->mt76->mac_work);
276
277 cancel_delayed_work_sync(&dev->pm.ps_work);
278 cancel_work_sync(&dev->pm.wake_work);
279 cancel_work_sync(&dev->reset_work);
280 mt76_connac_free_pending_tx_skbs(&dev->pm, NULL);
281
282 mt792x_mutex_acquire(dev);
283 clear_bit(MT76_STATE_RUNNING, &phy->mt76->state);
284 mt76_connac_mcu_set_mac_enable(&dev->mt76, 0, false, false);
285 mt792x_mutex_release(dev);
286 }
287 EXPORT_SYMBOL_GPL(mt7921_stop);
288
289 static int
mt7921_add_interface(struct ieee80211_hw * hw,struct ieee80211_vif * vif)290 mt7921_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
291 {
292 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
293 struct mt792x_dev *dev = mt792x_hw_dev(hw);
294 struct mt792x_phy *phy = mt792x_hw_phy(hw);
295 struct mt76_txq *mtxq;
296 int idx, ret = 0;
297
298 mt792x_mutex_acquire(dev);
299
300 mvif->mt76.idx = __ffs64(~dev->mt76.vif_mask);
301 if (mvif->mt76.idx >= MT792x_MAX_INTERFACES) {
302 ret = -ENOSPC;
303 goto out;
304 }
305
306 mvif->mt76.omac_idx = mvif->mt76.idx;
307 mvif->phy = phy;
308 mvif->mt76.band_idx = 0;
309 mvif->mt76.wmm_idx = mvif->mt76.idx % MT76_CONNAC_MAX_WMM_SETS;
310
311 ret = mt76_connac_mcu_uni_add_dev(&dev->mphy, vif, &mvif->sta.wcid,
312 true);
313 if (ret)
314 goto out;
315
316 dev->mt76.vif_mask |= BIT_ULL(mvif->mt76.idx);
317 phy->omac_mask |= BIT_ULL(mvif->mt76.omac_idx);
318
319 idx = MT792x_WTBL_RESERVED - mvif->mt76.idx;
320
321 INIT_LIST_HEAD(&mvif->sta.wcid.poll_list);
322 mvif->sta.wcid.idx = idx;
323 mvif->sta.wcid.phy_idx = mvif->mt76.band_idx;
324 mvif->sta.wcid.hw_key_idx = -1;
325 mvif->sta.wcid.tx_info |= MT_WCID_TX_INFO_SET;
326 mt76_wcid_init(&mvif->sta.wcid);
327
328 mt7921_mac_wtbl_update(dev, idx,
329 MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
330
331 ewma_rssi_init(&mvif->rssi);
332
333 rcu_assign_pointer(dev->mt76.wcid[idx], &mvif->sta.wcid);
334 if (vif->txq) {
335 mtxq = (struct mt76_txq *)vif->txq->drv_priv;
336 mtxq->wcid = idx;
337 }
338
339 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER;
340 out:
341 mt792x_mutex_release(dev);
342
343 return ret;
344 }
345
mt7921_roc_iter(void * priv,u8 * mac,struct ieee80211_vif * vif)346 static void mt7921_roc_iter(void *priv, u8 *mac,
347 struct ieee80211_vif *vif)
348 {
349 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
350 struct mt792x_phy *phy = priv;
351
352 mt7921_mcu_abort_roc(phy, mvif, phy->roc_token_id);
353 }
354
mt7921_roc_work(struct work_struct * work)355 void mt7921_roc_work(struct work_struct *work)
356 {
357 struct mt792x_phy *phy;
358
359 phy = (struct mt792x_phy *)container_of(work, struct mt792x_phy,
360 roc_work);
361
362 if (!test_and_clear_bit(MT76_STATE_ROC, &phy->mt76->state))
363 return;
364
365 mt792x_mutex_acquire(phy->dev);
366 ieee80211_iterate_active_interfaces(phy->mt76->hw,
367 IEEE80211_IFACE_ITER_RESUME_ALL,
368 mt7921_roc_iter, phy);
369 mt792x_mutex_release(phy->dev);
370 ieee80211_remain_on_channel_expired(phy->mt76->hw);
371 }
372
mt7921_abort_roc(struct mt792x_phy * phy,struct mt792x_vif * vif)373 static int mt7921_abort_roc(struct mt792x_phy *phy, struct mt792x_vif *vif)
374 {
375 int err = 0;
376
377 del_timer_sync(&phy->roc_timer);
378 cancel_work_sync(&phy->roc_work);
379
380 mt792x_mutex_acquire(phy->dev);
381 if (test_and_clear_bit(MT76_STATE_ROC, &phy->mt76->state))
382 err = mt7921_mcu_abort_roc(phy, vif, phy->roc_token_id);
383 mt792x_mutex_release(phy->dev);
384
385 return err;
386 }
387
mt7921_set_roc(struct mt792x_phy * phy,struct mt792x_vif * vif,struct ieee80211_channel * chan,int duration,enum mt7921_roc_req type)388 static int mt7921_set_roc(struct mt792x_phy *phy,
389 struct mt792x_vif *vif,
390 struct ieee80211_channel *chan,
391 int duration,
392 enum mt7921_roc_req type)
393 {
394 int err;
395
396 if (test_and_set_bit(MT76_STATE_ROC, &phy->mt76->state))
397 return -EBUSY;
398
399 phy->roc_grant = false;
400
401 err = mt7921_mcu_set_roc(phy, vif, chan, duration, type,
402 ++phy->roc_token_id);
403 if (err < 0) {
404 clear_bit(MT76_STATE_ROC, &phy->mt76->state);
405 goto out;
406 }
407
408 if (!wait_event_timeout(phy->roc_wait, phy->roc_grant, HZ)) {
409 mt7921_mcu_abort_roc(phy, vif, phy->roc_token_id);
410 clear_bit(MT76_STATE_ROC, &phy->mt76->state);
411 err = -ETIMEDOUT;
412 }
413
414 out:
415 return err;
416 }
417
mt7921_remain_on_channel(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_channel * chan,int duration,enum ieee80211_roc_type type)418 static int mt7921_remain_on_channel(struct ieee80211_hw *hw,
419 struct ieee80211_vif *vif,
420 struct ieee80211_channel *chan,
421 int duration,
422 enum ieee80211_roc_type type)
423 {
424 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
425 struct mt792x_phy *phy = mt792x_hw_phy(hw);
426 int err;
427
428 mt792x_mutex_acquire(phy->dev);
429 err = mt7921_set_roc(phy, mvif, chan, duration, MT7921_ROC_REQ_ROC);
430 mt792x_mutex_release(phy->dev);
431
432 return err;
433 }
434
mt7921_cancel_remain_on_channel(struct ieee80211_hw * hw,struct ieee80211_vif * vif)435 static int mt7921_cancel_remain_on_channel(struct ieee80211_hw *hw,
436 struct ieee80211_vif *vif)
437 {
438 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
439 struct mt792x_phy *phy = mt792x_hw_phy(hw);
440
441 return mt7921_abort_roc(phy, mvif);
442 }
443
mt7921_set_channel(struct mt792x_phy * phy)444 static int mt7921_set_channel(struct mt792x_phy *phy)
445 {
446 struct mt792x_dev *dev = phy->dev;
447 int ret;
448
449 cancel_delayed_work_sync(&phy->mt76->mac_work);
450
451 mt792x_mutex_acquire(dev);
452 set_bit(MT76_RESET, &phy->mt76->state);
453
454 mt76_set_channel(phy->mt76);
455
456 ret = mt7921_mcu_set_chan_info(phy, MCU_EXT_CMD(CHANNEL_SWITCH));
457 if (ret)
458 goto out;
459
460 mt792x_mac_set_timeing(phy);
461
462 mt792x_mac_reset_counters(phy);
463 phy->noise = 0;
464
465 out:
466 clear_bit(MT76_RESET, &phy->mt76->state);
467 mt792x_mutex_release(dev);
468
469 mt76_worker_schedule(&dev->mt76.tx_worker);
470 ieee80211_queue_delayed_work(phy->mt76->hw, &phy->mt76->mac_work,
471 MT792x_WATCHDOG_TIME);
472
473 return ret;
474 }
475
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)476 static int mt7921_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
477 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
478 struct ieee80211_key_conf *key)
479 {
480 struct mt792x_dev *dev = mt792x_hw_dev(hw);
481 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
482 struct mt792x_sta *msta = sta ? (struct mt792x_sta *)sta->drv_priv :
483 &mvif->sta;
484 struct mt76_wcid *wcid = &msta->wcid;
485 u8 *wcid_keyidx = &wcid->hw_key_idx;
486 int idx = key->keyidx, err = 0;
487
488 /* The hardware does not support per-STA RX GTK, fallback
489 * to software mode for these.
490 */
491 if ((vif->type == NL80211_IFTYPE_ADHOC ||
492 vif->type == NL80211_IFTYPE_MESH_POINT) &&
493 (key->cipher == WLAN_CIPHER_SUITE_TKIP ||
494 key->cipher == WLAN_CIPHER_SUITE_CCMP) &&
495 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE))
496 return -EOPNOTSUPP;
497
498 /* fall back to sw encryption for unsupported ciphers */
499 switch (key->cipher) {
500 case WLAN_CIPHER_SUITE_AES_CMAC:
501 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIE;
502 wcid_keyidx = &wcid->hw_key_idx2;
503 break;
504 case WLAN_CIPHER_SUITE_WEP40:
505 case WLAN_CIPHER_SUITE_WEP104:
506 if (!mvif->wep_sta)
507 return -EOPNOTSUPP;
508 break;
509 case WLAN_CIPHER_SUITE_TKIP:
510 case WLAN_CIPHER_SUITE_CCMP:
511 case WLAN_CIPHER_SUITE_CCMP_256:
512 case WLAN_CIPHER_SUITE_GCMP:
513 case WLAN_CIPHER_SUITE_GCMP_256:
514 case WLAN_CIPHER_SUITE_SMS4:
515 break;
516 default:
517 return -EOPNOTSUPP;
518 }
519
520 mt792x_mutex_acquire(dev);
521
522 if (cmd == SET_KEY) {
523 *wcid_keyidx = idx;
524 } else {
525 if (idx == *wcid_keyidx)
526 *wcid_keyidx = -1;
527
528 /* For security issue we don't trigger the key deletion when
529 * reassociating. But we should trigger the deletion process
530 * to avoid using incorrect cipher after disconnection,
531 */
532 if (vif->type != NL80211_IFTYPE_STATION || vif->cfg.assoc)
533 goto out;
534 }
535
536 mt76_wcid_key_setup(&dev->mt76, wcid, key);
537 err = mt76_connac_mcu_add_key(&dev->mt76, vif, &msta->bip,
538 key, MCU_UNI_CMD(STA_REC_UPDATE),
539 &msta->wcid, cmd);
540 if (err)
541 goto out;
542
543 if (key->cipher == WLAN_CIPHER_SUITE_WEP104 ||
544 key->cipher == WLAN_CIPHER_SUITE_WEP40)
545 err = mt76_connac_mcu_add_key(&dev->mt76, vif,
546 &mvif->wep_sta->bip,
547 key, MCU_UNI_CMD(STA_REC_UPDATE),
548 &mvif->wep_sta->wcid, cmd);
549 out:
550 mt792x_mutex_release(dev);
551
552 return err;
553 }
554
555 static void
mt7921_pm_interface_iter(void * priv,u8 * mac,struct ieee80211_vif * vif)556 mt7921_pm_interface_iter(void *priv, u8 *mac, struct ieee80211_vif *vif)
557 {
558 struct mt792x_dev *dev = priv;
559 struct ieee80211_hw *hw = mt76_hw(dev);
560 bool pm_enable = dev->pm.enable;
561 int err;
562
563 err = mt7921_mcu_set_beacon_filter(dev, vif, pm_enable);
564 if (err < 0)
565 return;
566
567 if (pm_enable) {
568 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER;
569 ieee80211_hw_set(hw, CONNECTION_MONITOR);
570 } else {
571 vif->driver_flags &= ~IEEE80211_VIF_BEACON_FILTER;
572 __clear_bit(IEEE80211_HW_CONNECTION_MONITOR, hw->flags);
573 }
574 }
575
576 static void
mt7921_sniffer_interface_iter(void * priv,u8 * mac,struct ieee80211_vif * vif)577 mt7921_sniffer_interface_iter(void *priv, u8 *mac, struct ieee80211_vif *vif)
578 {
579 struct mt792x_dev *dev = priv;
580 struct ieee80211_hw *hw = mt76_hw(dev);
581 struct mt76_connac_pm *pm = &dev->pm;
582 bool monitor = !!(hw->conf.flags & IEEE80211_CONF_MONITOR);
583
584 mt7921_mcu_set_sniffer(dev, vif, monitor);
585 pm->enable = pm->enable_user && !monitor;
586 pm->ds_enable = pm->ds_enable_user && !monitor;
587
588 mt76_connac_mcu_set_deep_sleep(&dev->mt76, pm->ds_enable);
589
590 if (monitor)
591 mt7921_mcu_set_beacon_filter(dev, vif, false);
592 }
593
mt7921_set_runtime_pm(struct mt792x_dev * dev)594 void mt7921_set_runtime_pm(struct mt792x_dev *dev)
595 {
596 struct ieee80211_hw *hw = mt76_hw(dev);
597 struct mt76_connac_pm *pm = &dev->pm;
598 bool monitor = !!(hw->conf.flags & IEEE80211_CONF_MONITOR);
599
600 pm->enable = pm->enable_user && !monitor;
601 ieee80211_iterate_active_interfaces(hw,
602 IEEE80211_IFACE_ITER_RESUME_ALL,
603 mt7921_pm_interface_iter, dev);
604 pm->ds_enable = pm->ds_enable_user && !monitor;
605 mt76_connac_mcu_set_deep_sleep(&dev->mt76, pm->ds_enable);
606 }
607
mt7921_config(struct ieee80211_hw * hw,u32 changed)608 static int mt7921_config(struct ieee80211_hw *hw, u32 changed)
609 {
610 struct mt792x_dev *dev = mt792x_hw_dev(hw);
611 struct mt792x_phy *phy = mt792x_hw_phy(hw);
612 int ret = 0;
613
614 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
615 ieee80211_stop_queues(hw);
616 ret = mt7921_set_channel(phy);
617 if (ret)
618 return ret;
619 ieee80211_wake_queues(hw);
620 }
621
622 mt792x_mutex_acquire(dev);
623
624 if (changed & IEEE80211_CONF_CHANGE_POWER) {
625 ret = mt7921_set_tx_sar_pwr(hw, NULL);
626 if (ret)
627 goto out;
628 }
629
630 if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
631 ieee80211_iterate_active_interfaces(hw,
632 IEEE80211_IFACE_ITER_RESUME_ALL,
633 mt7921_sniffer_interface_iter, dev);
634 }
635
636 out:
637 mt792x_mutex_release(dev);
638
639 return ret;
640 }
641
mt7921_configure_filter(struct ieee80211_hw * hw,unsigned int changed_flags,unsigned int * total_flags,u64 multicast)642 static void mt7921_configure_filter(struct ieee80211_hw *hw,
643 unsigned int changed_flags,
644 unsigned int *total_flags,
645 u64 multicast)
646 {
647 #define MT7921_FILTER_FCSFAIL BIT(2)
648 #define MT7921_FILTER_CONTROL BIT(5)
649 #define MT7921_FILTER_OTHER_BSS BIT(6)
650 #define MT7921_FILTER_ENABLE BIT(31)
651
652 struct mt792x_dev *dev = mt792x_hw_dev(hw);
653 u32 flags = MT7921_FILTER_ENABLE;
654
655 #define MT7921_FILTER(_fif, _type) do { \
656 if (*total_flags & (_fif)) \
657 flags |= MT7921_FILTER_##_type; \
658 } while (0)
659
660 MT7921_FILTER(FIF_FCSFAIL, FCSFAIL);
661 MT7921_FILTER(FIF_CONTROL, CONTROL);
662 MT7921_FILTER(FIF_OTHER_BSS, OTHER_BSS);
663
664 mt792x_mutex_acquire(dev);
665 mt7921_mcu_set_rxfilter(dev, flags, 0, 0);
666 mt792x_mutex_release(dev);
667
668 *total_flags &= (FIF_OTHER_BSS | FIF_FCSFAIL | FIF_CONTROL);
669 }
670
mt7921_bss_info_changed(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * info,u64 changed)671 static void mt7921_bss_info_changed(struct ieee80211_hw *hw,
672 struct ieee80211_vif *vif,
673 struct ieee80211_bss_conf *info,
674 u64 changed)
675 {
676 struct mt792x_phy *phy = mt792x_hw_phy(hw);
677 struct mt792x_dev *dev = mt792x_hw_dev(hw);
678
679 mt792x_mutex_acquire(dev);
680
681 if (changed & BSS_CHANGED_ERP_SLOT) {
682 int slottime = info->use_short_slot ? 9 : 20;
683
684 if (slottime != phy->slottime) {
685 phy->slottime = slottime;
686 mt792x_mac_set_timeing(phy);
687 }
688 }
689
690 if (changed & (BSS_CHANGED_BEACON |
691 BSS_CHANGED_BEACON_ENABLED))
692 mt7921_mcu_uni_add_beacon_offload(dev, hw, vif,
693 info->enable_beacon);
694
695 /* ensure that enable txcmd_mode after bss_info */
696 if (changed & (BSS_CHANGED_QOS | BSS_CHANGED_BEACON_ENABLED))
697 mt7921_mcu_set_tx(dev, vif);
698
699 if (changed & BSS_CHANGED_PS)
700 mt7921_mcu_uni_bss_ps(dev, vif);
701
702 if (changed & BSS_CHANGED_ASSOC) {
703 mt7921_mcu_sta_update(dev, NULL, vif, true,
704 MT76_STA_INFO_STATE_ASSOC);
705 mt7921_mcu_set_beacon_filter(dev, vif, vif->cfg.assoc);
706 }
707
708 if (changed & BSS_CHANGED_ARP_FILTER) {
709 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
710
711 mt76_connac_mcu_update_arp_filter(&dev->mt76, &mvif->mt76,
712 info);
713 }
714
715 mt792x_mutex_release(dev);
716 }
717
mt7921_mac_sta_add(struct mt76_dev * mdev,struct ieee80211_vif * vif,struct ieee80211_sta * sta)718 int mt7921_mac_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif,
719 struct ieee80211_sta *sta)
720 {
721 struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76);
722 struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv;
723 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
724 int ret, idx;
725
726 idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT792x_WTBL_STA - 1);
727 if (idx < 0)
728 return -ENOSPC;
729
730 INIT_LIST_HEAD(&msta->wcid.poll_list);
731 msta->vif = mvif;
732 msta->wcid.sta = 1;
733 msta->wcid.idx = idx;
734 msta->wcid.phy_idx = mvif->mt76.band_idx;
735 msta->wcid.tx_info |= MT_WCID_TX_INFO_SET;
736 msta->last_txs = jiffies;
737
738 ret = mt76_connac_pm_wake(&dev->mphy, &dev->pm);
739 if (ret)
740 return ret;
741
742 if (vif->type == NL80211_IFTYPE_STATION)
743 mvif->wep_sta = msta;
744
745 mt7921_mac_wtbl_update(dev, idx,
746 MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
747
748 ret = mt7921_mcu_sta_update(dev, sta, vif, true,
749 MT76_STA_INFO_STATE_NONE);
750 if (ret)
751 return ret;
752
753 mt76_connac_power_save_sched(&dev->mphy, &dev->pm);
754
755 return 0;
756 }
757 EXPORT_SYMBOL_GPL(mt7921_mac_sta_add);
758
mt7921_mac_sta_assoc(struct mt76_dev * mdev,struct ieee80211_vif * vif,struct ieee80211_sta * sta)759 void mt7921_mac_sta_assoc(struct mt76_dev *mdev, struct ieee80211_vif *vif,
760 struct ieee80211_sta *sta)
761 {
762 struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76);
763 struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv;
764 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
765
766 mt792x_mutex_acquire(dev);
767
768 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls)
769 mt76_connac_mcu_uni_add_bss(&dev->mphy, vif, &mvif->sta.wcid,
770 true, mvif->mt76.ctx);
771
772 ewma_avg_signal_init(&msta->avg_ack_signal);
773
774 mt7921_mac_wtbl_update(dev, msta->wcid.idx,
775 MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
776 memset(msta->airtime_ac, 0, sizeof(msta->airtime_ac));
777
778 mt7921_mcu_sta_update(dev, sta, vif, true, MT76_STA_INFO_STATE_ASSOC);
779
780 mt792x_mutex_release(dev);
781 }
782 EXPORT_SYMBOL_GPL(mt7921_mac_sta_assoc);
783
mt7921_mac_sta_remove(struct mt76_dev * mdev,struct ieee80211_vif * vif,struct ieee80211_sta * sta)784 void mt7921_mac_sta_remove(struct mt76_dev *mdev, struct ieee80211_vif *vif,
785 struct ieee80211_sta *sta)
786 {
787 struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76);
788 struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv;
789
790 mt76_connac_free_pending_tx_skbs(&dev->pm, &msta->wcid);
791 mt76_connac_pm_wake(&dev->mphy, &dev->pm);
792
793 mt7921_mcu_sta_update(dev, sta, vif, false, MT76_STA_INFO_STATE_NONE);
794 mt7921_mac_wtbl_update(dev, msta->wcid.idx,
795 MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
796
797 if (vif->type == NL80211_IFTYPE_STATION) {
798 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
799
800 mvif->wep_sta = NULL;
801 ewma_rssi_init(&mvif->rssi);
802 if (!sta->tdls)
803 mt76_connac_mcu_uni_add_bss(&dev->mphy, vif,
804 &mvif->sta.wcid, false,
805 mvif->mt76.ctx);
806 }
807
808 spin_lock_bh(&dev->mt76.sta_poll_lock);
809 if (!list_empty(&msta->wcid.poll_list))
810 list_del_init(&msta->wcid.poll_list);
811 spin_unlock_bh(&dev->mt76.sta_poll_lock);
812
813 mt76_connac_power_save_sched(&dev->mphy, &dev->pm);
814 }
815 EXPORT_SYMBOL_GPL(mt7921_mac_sta_remove);
816
mt7921_set_rts_threshold(struct ieee80211_hw * hw,u32 val)817 static int mt7921_set_rts_threshold(struct ieee80211_hw *hw, u32 val)
818 {
819 struct mt792x_dev *dev = mt792x_hw_dev(hw);
820
821 mt792x_mutex_acquire(dev);
822 mt76_connac_mcu_set_rts_thresh(&dev->mt76, val, 0);
823 mt792x_mutex_release(dev);
824
825 return 0;
826 }
827
828 static int
mt7921_ampdu_action(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_ampdu_params * params)829 mt7921_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
830 struct ieee80211_ampdu_params *params)
831 {
832 enum ieee80211_ampdu_mlme_action action = params->action;
833 struct mt792x_dev *dev = mt792x_hw_dev(hw);
834 struct ieee80211_sta *sta = params->sta;
835 struct ieee80211_txq *txq = sta->txq[params->tid];
836 struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv;
837 u16 tid = params->tid;
838 u16 ssn = params->ssn;
839 struct mt76_txq *mtxq;
840 int ret = 0;
841
842 if (!txq)
843 return -EINVAL;
844
845 mtxq = (struct mt76_txq *)txq->drv_priv;
846
847 mt792x_mutex_acquire(dev);
848 switch (action) {
849 case IEEE80211_AMPDU_RX_START:
850 mt76_rx_aggr_start(&dev->mt76, &msta->wcid, tid, ssn,
851 params->buf_size);
852 mt7921_mcu_uni_rx_ba(dev, params, true);
853 break;
854 case IEEE80211_AMPDU_RX_STOP:
855 mt76_rx_aggr_stop(&dev->mt76, &msta->wcid, tid);
856 mt7921_mcu_uni_rx_ba(dev, params, false);
857 break;
858 case IEEE80211_AMPDU_TX_OPERATIONAL:
859 mtxq->aggr = true;
860 mtxq->send_bar = false;
861 mt7921_mcu_uni_tx_ba(dev, params, true);
862 break;
863 case IEEE80211_AMPDU_TX_STOP_FLUSH:
864 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
865 mtxq->aggr = false;
866 clear_bit(tid, &msta->wcid.ampdu_state);
867 mt7921_mcu_uni_tx_ba(dev, params, false);
868 break;
869 case IEEE80211_AMPDU_TX_START:
870 set_bit(tid, &msta->wcid.ampdu_state);
871 ret = IEEE80211_AMPDU_TX_START_IMMEDIATE;
872 break;
873 case IEEE80211_AMPDU_TX_STOP_CONT:
874 mtxq->aggr = false;
875 clear_bit(tid, &msta->wcid.ampdu_state);
876 mt7921_mcu_uni_tx_ba(dev, params, false);
877 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
878 break;
879 }
880 mt792x_mutex_release(dev);
881
882 return ret;
883 }
884
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)885 static int mt7921_sta_state(struct ieee80211_hw *hw,
886 struct ieee80211_vif *vif,
887 struct ieee80211_sta *sta,
888 enum ieee80211_sta_state old_state,
889 enum ieee80211_sta_state new_state)
890 {
891 struct mt792x_dev *dev = mt792x_hw_dev(hw);
892
893 if (dev->pm.ds_enable) {
894 mt792x_mutex_acquire(dev);
895 mt76_connac_sta_state_dp(&dev->mt76, old_state, new_state);
896 mt792x_mutex_release(dev);
897 }
898
899 return mt76_sta_state(hw, vif, sta, old_state, new_state);
900 }
901
mt7921_scan_work(struct work_struct * work)902 void mt7921_scan_work(struct work_struct *work)
903 {
904 struct mt792x_phy *phy;
905
906 phy = (struct mt792x_phy *)container_of(work, struct mt792x_phy,
907 scan_work.work);
908
909 while (true) {
910 struct mt76_connac2_mcu_rxd *rxd;
911 struct sk_buff *skb;
912
913 spin_lock_bh(&phy->dev->mt76.lock);
914 skb = __skb_dequeue(&phy->scan_event_list);
915 spin_unlock_bh(&phy->dev->mt76.lock);
916
917 if (!skb)
918 break;
919
920 rxd = (struct mt76_connac2_mcu_rxd *)skb->data;
921 if (rxd->eid == MCU_EVENT_SCHED_SCAN_DONE) {
922 ieee80211_sched_scan_results(phy->mt76->hw);
923 } else if (test_and_clear_bit(MT76_HW_SCANNING,
924 &phy->mt76->state)) {
925 struct cfg80211_scan_info info = {
926 .aborted = false,
927 };
928
929 ieee80211_scan_completed(phy->mt76->hw, &info);
930 }
931 dev_kfree_skb(skb);
932 }
933 }
934
935 static int
mt7921_hw_scan(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_scan_request * req)936 mt7921_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
937 struct ieee80211_scan_request *req)
938 {
939 struct mt792x_dev *dev = mt792x_hw_dev(hw);
940 struct mt76_phy *mphy = hw->priv;
941 int err;
942
943 mt792x_mutex_acquire(dev);
944 err = mt76_connac_mcu_hw_scan(mphy, vif, req);
945 mt792x_mutex_release(dev);
946
947 return err;
948 }
949
950 static void
mt7921_cancel_hw_scan(struct ieee80211_hw * hw,struct ieee80211_vif * vif)951 mt7921_cancel_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
952 {
953 struct mt792x_dev *dev = mt792x_hw_dev(hw);
954 struct mt76_phy *mphy = hw->priv;
955
956 mt792x_mutex_acquire(dev);
957 mt76_connac_mcu_cancel_hw_scan(mphy, vif);
958 mt792x_mutex_release(dev);
959 }
960
961 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)962 mt7921_start_sched_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
963 struct cfg80211_sched_scan_request *req,
964 struct ieee80211_scan_ies *ies)
965 {
966 struct mt792x_dev *dev = mt792x_hw_dev(hw);
967 struct mt76_phy *mphy = hw->priv;
968 int err;
969
970 mt792x_mutex_acquire(dev);
971
972 err = mt76_connac_mcu_sched_scan_req(mphy, vif, req);
973 if (err < 0)
974 goto out;
975
976 err = mt76_connac_mcu_sched_scan_enable(mphy, vif, true);
977 out:
978 mt792x_mutex_release(dev);
979
980 return err;
981 }
982
983 static int
mt7921_stop_sched_scan(struct ieee80211_hw * hw,struct ieee80211_vif * vif)984 mt7921_stop_sched_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 int err;
989
990 mt792x_mutex_acquire(dev);
991 err = mt76_connac_mcu_sched_scan_enable(mphy, vif, false);
992 mt792x_mutex_release(dev);
993
994 return err;
995 }
996
997 static int
mt7921_set_antenna(struct ieee80211_hw * hw,u32 tx_ant,u32 rx_ant)998 mt7921_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant)
999 {
1000 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1001 struct mt792x_phy *phy = mt792x_hw_phy(hw);
1002 int max_nss = hweight8(hw->wiphy->available_antennas_tx);
1003
1004 if (!tx_ant || tx_ant != rx_ant || ffs(tx_ant) > max_nss)
1005 return -EINVAL;
1006
1007 if ((BIT(hweight8(tx_ant)) - 1) != tx_ant)
1008 return -EINVAL;
1009
1010 mt792x_mutex_acquire(dev);
1011
1012 phy->mt76->antenna_mask = tx_ant;
1013 phy->mt76->chainmask = tx_ant;
1014
1015 mt76_set_stream_caps(phy->mt76, true);
1016 mt7921_set_stream_he_caps(phy);
1017
1018 mt792x_mutex_release(dev);
1019
1020 return 0;
1021 }
1022
1023 #ifdef CONFIG_PM
mt7921_suspend(struct ieee80211_hw * hw,struct cfg80211_wowlan * wowlan)1024 static int mt7921_suspend(struct ieee80211_hw *hw,
1025 struct cfg80211_wowlan *wowlan)
1026 {
1027 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1028 struct mt792x_phy *phy = mt792x_hw_phy(hw);
1029
1030 cancel_delayed_work_sync(&phy->scan_work);
1031 cancel_delayed_work_sync(&phy->mt76->mac_work);
1032
1033 cancel_delayed_work_sync(&dev->pm.ps_work);
1034 mt76_connac_free_pending_tx_skbs(&dev->pm, NULL);
1035
1036 mt792x_mutex_acquire(dev);
1037
1038 clear_bit(MT76_STATE_RUNNING, &phy->mt76->state);
1039 ieee80211_iterate_active_interfaces(hw,
1040 IEEE80211_IFACE_ITER_RESUME_ALL,
1041 mt7921_mcu_set_suspend_iter,
1042 &dev->mphy);
1043
1044 mt792x_mutex_release(dev);
1045
1046 return 0;
1047 }
1048
mt7921_resume(struct ieee80211_hw * hw)1049 static int mt7921_resume(struct ieee80211_hw *hw)
1050 {
1051 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1052 struct mt792x_phy *phy = mt792x_hw_phy(hw);
1053
1054 mt792x_mutex_acquire(dev);
1055
1056 set_bit(MT76_STATE_RUNNING, &phy->mt76->state);
1057 ieee80211_iterate_active_interfaces(hw,
1058 IEEE80211_IFACE_ITER_RESUME_ALL,
1059 mt76_connac_mcu_set_suspend_iter,
1060 &dev->mphy);
1061
1062 ieee80211_queue_delayed_work(hw, &phy->mt76->mac_work,
1063 MT792x_WATCHDOG_TIME);
1064
1065 mt792x_mutex_release(dev);
1066
1067 return 0;
1068 }
1069
mt7921_set_rekey_data(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct cfg80211_gtk_rekey_data * data)1070 static void mt7921_set_rekey_data(struct ieee80211_hw *hw,
1071 struct ieee80211_vif *vif,
1072 struct cfg80211_gtk_rekey_data *data)
1073 {
1074 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1075
1076 mt792x_mutex_acquire(dev);
1077 mt76_connac_mcu_update_gtk_rekey(hw, vif, data);
1078 mt792x_mutex_release(dev);
1079 }
1080 #endif /* CONFIG_PM */
1081
mt7921_sta_set_decap_offload(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,bool enabled)1082 static void mt7921_sta_set_decap_offload(struct ieee80211_hw *hw,
1083 struct ieee80211_vif *vif,
1084 struct ieee80211_sta *sta,
1085 bool enabled)
1086 {
1087 struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv;
1088 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1089
1090 mt792x_mutex_acquire(dev);
1091
1092 if (enabled)
1093 set_bit(MT_WCID_FLAG_HDR_TRANS, &msta->wcid.flags);
1094 else
1095 clear_bit(MT_WCID_FLAG_HDR_TRANS, &msta->wcid.flags);
1096
1097 mt76_connac_mcu_sta_update_hdr_trans(&dev->mt76, vif, &msta->wcid,
1098 MCU_UNI_CMD(STA_REC_UPDATE));
1099
1100 mt792x_mutex_release(dev);
1101 }
1102
1103 #if IS_ENABLED(CONFIG_IPV6)
mt7921_ipv6_addr_change(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct inet6_dev * idev)1104 static void mt7921_ipv6_addr_change(struct ieee80211_hw *hw,
1105 struct ieee80211_vif *vif,
1106 struct inet6_dev *idev)
1107 {
1108 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
1109 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1110 struct inet6_ifaddr *ifa;
1111 struct in6_addr ns_addrs[IEEE80211_BSS_ARP_ADDR_LIST_LEN];
1112 struct sk_buff *skb;
1113 u8 i, idx = 0;
1114
1115 struct {
1116 struct {
1117 u8 bss_idx;
1118 u8 pad[3];
1119 } __packed hdr;
1120 struct mt76_connac_arpns_tlv arpns;
1121 } req_hdr = {
1122 .hdr = {
1123 .bss_idx = mvif->mt76.idx,
1124 },
1125 .arpns = {
1126 .tag = cpu_to_le16(UNI_OFFLOAD_OFFLOAD_ND),
1127 .mode = 2, /* update */
1128 .option = 1, /* update only */
1129 },
1130 };
1131
1132 read_lock_bh(&idev->lock);
1133 list_for_each_entry(ifa, &idev->addr_list, if_list) {
1134 if (ifa->flags & IFA_F_TENTATIVE)
1135 continue;
1136 ns_addrs[idx] = ifa->addr;
1137 if (++idx >= IEEE80211_BSS_ARP_ADDR_LIST_LEN)
1138 break;
1139 }
1140 read_unlock_bh(&idev->lock);
1141
1142 if (!idx)
1143 return;
1144
1145 req_hdr.arpns.ips_num = idx;
1146 req_hdr.arpns.len = cpu_to_le16(sizeof(struct mt76_connac_arpns_tlv)
1147 + idx * sizeof(struct in6_addr));
1148 skb = __mt76_mcu_msg_alloc(&dev->mt76, &req_hdr,
1149 sizeof(req_hdr) + idx * sizeof(struct in6_addr),
1150 sizeof(req_hdr), GFP_ATOMIC);
1151 if (!skb)
1152 return;
1153
1154 for (i = 0; i < idx; i++)
1155 skb_put_data(skb, &ns_addrs[i].in6_u, sizeof(struct in6_addr));
1156
1157 skb_queue_tail(&dev->ipv6_ns_list, skb);
1158
1159 ieee80211_queue_work(dev->mt76.hw, &dev->ipv6_ns_work);
1160 }
1161 #endif
1162
mt7921_set_tx_sar_pwr(struct ieee80211_hw * hw,const struct cfg80211_sar_specs * sar)1163 int mt7921_set_tx_sar_pwr(struct ieee80211_hw *hw,
1164 const struct cfg80211_sar_specs *sar)
1165 {
1166 struct mt76_phy *mphy = hw->priv;
1167
1168 if (sar) {
1169 int err = mt76_init_sar_power(hw, sar);
1170
1171 if (err)
1172 return err;
1173 }
1174 mt792x_init_acpi_sar_power(mt792x_hw_phy(hw), !sar);
1175
1176 return mt76_connac_mcu_set_rate_txpower(mphy);
1177 }
1178
mt7921_set_sar_specs(struct ieee80211_hw * hw,const struct cfg80211_sar_specs * sar)1179 static int mt7921_set_sar_specs(struct ieee80211_hw *hw,
1180 const struct cfg80211_sar_specs *sar)
1181 {
1182 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1183 int err;
1184
1185 mt792x_mutex_acquire(dev);
1186 err = mt7921_mcu_set_clc(dev, dev->mt76.alpha2,
1187 dev->country_ie_env);
1188 if (err < 0)
1189 goto out;
1190
1191 err = mt7921_set_tx_sar_pwr(hw, sar);
1192 out:
1193 mt792x_mutex_release(dev);
1194
1195 return err;
1196 }
1197
1198 static void
mt7921_channel_switch_beacon(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct cfg80211_chan_def * chandef)1199 mt7921_channel_switch_beacon(struct ieee80211_hw *hw,
1200 struct ieee80211_vif *vif,
1201 struct cfg80211_chan_def *chandef)
1202 {
1203 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1204
1205 mt792x_mutex_acquire(dev);
1206 mt7921_mcu_uni_add_beacon_offload(dev, hw, vif, true);
1207 mt792x_mutex_release(dev);
1208 }
1209
1210 static int
mt7921_start_ap(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf)1211 mt7921_start_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1212 struct ieee80211_bss_conf *link_conf)
1213 {
1214 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
1215 struct mt792x_phy *phy = mt792x_hw_phy(hw);
1216 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1217 int err;
1218
1219 mt792x_mutex_acquire(dev);
1220
1221 err = mt76_connac_mcu_uni_add_bss(phy->mt76, vif, &mvif->sta.wcid,
1222 true, mvif->mt76.ctx);
1223 if (err)
1224 goto out;
1225
1226 err = mt7921_mcu_set_bss_pm(dev, vif, true);
1227 if (err)
1228 goto out;
1229
1230 err = mt7921_mcu_sta_update(dev, NULL, vif, true,
1231 MT76_STA_INFO_STATE_NONE);
1232 out:
1233 mt792x_mutex_release(dev);
1234
1235 return err;
1236 }
1237
1238 static void
mt7921_stop_ap(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf)1239 mt7921_stop_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1240 struct ieee80211_bss_conf *link_conf)
1241 {
1242 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
1243 struct mt792x_phy *phy = mt792x_hw_phy(hw);
1244 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1245 int err;
1246
1247 mt792x_mutex_acquire(dev);
1248
1249 err = mt7921_mcu_set_bss_pm(dev, vif, false);
1250 if (err)
1251 goto out;
1252
1253 mt76_connac_mcu_uni_add_bss(phy->mt76, vif, &mvif->sta.wcid, false,
1254 mvif->mt76.ctx);
1255
1256 out:
1257 mt792x_mutex_release(dev);
1258 }
1259
1260 static int
mt7921_add_chanctx(struct ieee80211_hw * hw,struct ieee80211_chanctx_conf * ctx)1261 mt7921_add_chanctx(struct ieee80211_hw *hw,
1262 struct ieee80211_chanctx_conf *ctx)
1263 {
1264 return 0;
1265 }
1266
1267 static void
mt7921_remove_chanctx(struct ieee80211_hw * hw,struct ieee80211_chanctx_conf * ctx)1268 mt7921_remove_chanctx(struct ieee80211_hw *hw,
1269 struct ieee80211_chanctx_conf *ctx)
1270 {
1271 }
1272
mt7921_ctx_iter(void * priv,u8 * mac,struct ieee80211_vif * vif)1273 static void mt7921_ctx_iter(void *priv, u8 *mac,
1274 struct ieee80211_vif *vif)
1275 {
1276 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
1277 struct ieee80211_chanctx_conf *ctx = priv;
1278
1279 if (ctx != mvif->mt76.ctx)
1280 return;
1281
1282 if (vif->type == NL80211_IFTYPE_MONITOR)
1283 mt7921_mcu_config_sniffer(mvif, ctx);
1284 else
1285 mt76_connac_mcu_uni_set_chctx(mvif->phy->mt76, &mvif->mt76, ctx);
1286 }
1287
1288 static void
mt7921_change_chanctx(struct ieee80211_hw * hw,struct ieee80211_chanctx_conf * ctx,u32 changed)1289 mt7921_change_chanctx(struct ieee80211_hw *hw,
1290 struct ieee80211_chanctx_conf *ctx,
1291 u32 changed)
1292 {
1293 struct mt792x_phy *phy = mt792x_hw_phy(hw);
1294
1295 mt792x_mutex_acquire(phy->dev);
1296 ieee80211_iterate_active_interfaces(phy->mt76->hw,
1297 IEEE80211_IFACE_ITER_ACTIVE,
1298 mt7921_ctx_iter, ctx);
1299 mt792x_mutex_release(phy->dev);
1300 }
1301
mt7921_mgd_prepare_tx(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_prep_tx_info * info)1302 static void mt7921_mgd_prepare_tx(struct ieee80211_hw *hw,
1303 struct ieee80211_vif *vif,
1304 struct ieee80211_prep_tx_info *info)
1305 {
1306 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
1307 struct mt792x_dev *dev = mt792x_hw_dev(hw);
1308 u16 duration = info->duration ? info->duration :
1309 jiffies_to_msecs(HZ);
1310
1311 mt792x_mutex_acquire(dev);
1312 mt7921_set_roc(mvif->phy, mvif, mvif->mt76.ctx->def.chan, duration,
1313 MT7921_ROC_REQ_JOIN);
1314 mt792x_mutex_release(dev);
1315 }
1316
mt7921_mgd_complete_tx(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_prep_tx_info * info)1317 static void mt7921_mgd_complete_tx(struct ieee80211_hw *hw,
1318 struct ieee80211_vif *vif,
1319 struct ieee80211_prep_tx_info *info)
1320 {
1321 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
1322
1323 mt7921_abort_roc(mvif->phy, mvif);
1324 }
1325
1326 const struct ieee80211_ops mt7921_ops = {
1327 .tx = mt792x_tx,
1328 .start = mt7921_start,
1329 .stop = mt7921_stop,
1330 .add_interface = mt7921_add_interface,
1331 .remove_interface = mt792x_remove_interface,
1332 .config = mt7921_config,
1333 .conf_tx = mt792x_conf_tx,
1334 .configure_filter = mt7921_configure_filter,
1335 .bss_info_changed = mt7921_bss_info_changed,
1336 .start_ap = mt7921_start_ap,
1337 .stop_ap = mt7921_stop_ap,
1338 .sta_state = mt7921_sta_state,
1339 .sta_pre_rcu_remove = mt76_sta_pre_rcu_remove,
1340 .set_key = mt7921_set_key,
1341 .sta_set_decap_offload = mt7921_sta_set_decap_offload,
1342 #if IS_ENABLED(CONFIG_IPV6)
1343 .ipv6_addr_change = mt7921_ipv6_addr_change,
1344 #endif /* CONFIG_IPV6 */
1345 .ampdu_action = mt7921_ampdu_action,
1346 .set_rts_threshold = mt7921_set_rts_threshold,
1347 .wake_tx_queue = mt76_wake_tx_queue,
1348 .release_buffered_frames = mt76_release_buffered_frames,
1349 .channel_switch_beacon = mt7921_channel_switch_beacon,
1350 .get_txpower = mt76_get_txpower,
1351 .get_stats = mt792x_get_stats,
1352 .get_et_sset_count = mt792x_get_et_sset_count,
1353 .get_et_strings = mt792x_get_et_strings,
1354 .get_et_stats = mt792x_get_et_stats,
1355 .get_tsf = mt792x_get_tsf,
1356 .set_tsf = mt792x_set_tsf,
1357 .get_survey = mt76_get_survey,
1358 .get_antenna = mt76_get_antenna,
1359 .set_antenna = mt7921_set_antenna,
1360 .set_coverage_class = mt792x_set_coverage_class,
1361 .hw_scan = mt7921_hw_scan,
1362 .cancel_hw_scan = mt7921_cancel_hw_scan,
1363 .sta_statistics = mt792x_sta_statistics,
1364 .sched_scan_start = mt7921_start_sched_scan,
1365 .sched_scan_stop = mt7921_stop_sched_scan,
1366 CFG80211_TESTMODE_CMD(mt7921_testmode_cmd)
1367 CFG80211_TESTMODE_DUMP(mt7921_testmode_dump)
1368 #ifdef CONFIG_PM
1369 .suspend = mt7921_suspend,
1370 .resume = mt7921_resume,
1371 .set_wakeup = mt792x_set_wakeup,
1372 .set_rekey_data = mt7921_set_rekey_data,
1373 #endif /* CONFIG_PM */
1374 .flush = mt792x_flush,
1375 .set_sar_specs = mt7921_set_sar_specs,
1376 .remain_on_channel = mt7921_remain_on_channel,
1377 .cancel_remain_on_channel = mt7921_cancel_remain_on_channel,
1378 .add_chanctx = mt7921_add_chanctx,
1379 .remove_chanctx = mt7921_remove_chanctx,
1380 .change_chanctx = mt7921_change_chanctx,
1381 .assign_vif_chanctx = mt792x_assign_vif_chanctx,
1382 .unassign_vif_chanctx = mt792x_unassign_vif_chanctx,
1383 .mgd_prepare_tx = mt7921_mgd_prepare_tx,
1384 .mgd_complete_tx = mt7921_mgd_complete_tx,
1385 };
1386 EXPORT_SYMBOL_GPL(mt7921_ops);
1387
1388 MODULE_LICENSE("Dual BSD/GPL");
1389 MODULE_AUTHOR("Sean Wang <sean.wang@mediatek.com>");
1390