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 "mt7921.h"
9 #include "mcu.h"
10
11 static void
mt7921_gen_ppe_thresh(u8 * he_ppet,int nss)12 mt7921_gen_ppe_thresh(u8 *he_ppet, int nss)
13 {
14 u8 i, ppet_bits, ppet_size, ru_bit_mask = 0x7; /* HE80 */
15 u8 ppet16_ppet8_ru3_ru0[] = {0x1c, 0xc7, 0x71};
16
17 he_ppet[0] = FIELD_PREP(IEEE80211_PPE_THRES_NSS_MASK, nss - 1) |
18 FIELD_PREP(IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK,
19 ru_bit_mask);
20
21 ppet_bits = IEEE80211_PPE_THRES_INFO_PPET_SIZE *
22 nss * hweight8(ru_bit_mask) * 2;
23 ppet_size = DIV_ROUND_UP(ppet_bits, 8);
24
25 for (i = 0; i < ppet_size - 1; i++)
26 he_ppet[i + 1] = ppet16_ppet8_ru3_ru0[i % 3];
27
28 he_ppet[i + 1] = ppet16_ppet8_ru3_ru0[i % 3] &
29 (0xff >> (8 - (ppet_bits - 1) % 8));
30 }
31
32 static int
mt7921_init_he_caps(struct mt7921_phy * phy,enum nl80211_band band,struct ieee80211_sband_iftype_data * data)33 mt7921_init_he_caps(struct mt7921_phy *phy, enum nl80211_band band,
34 struct ieee80211_sband_iftype_data *data)
35 {
36 int i, idx = 0;
37 int nss = hweight8(phy->mt76->chainmask);
38 u16 mcs_map = 0;
39
40 for (i = 0; i < 8; i++) {
41 if (i < nss)
42 mcs_map |= (IEEE80211_HE_MCS_SUPPORT_0_11 << (i * 2));
43 else
44 mcs_map |= (IEEE80211_HE_MCS_NOT_SUPPORTED << (i * 2));
45 }
46
47 for (i = 0; i < NUM_NL80211_IFTYPES; i++) {
48 struct ieee80211_sta_he_cap *he_cap = &data[idx].he_cap;
49 struct ieee80211_he_cap_elem *he_cap_elem =
50 &he_cap->he_cap_elem;
51 struct ieee80211_he_mcs_nss_supp *he_mcs =
52 &he_cap->he_mcs_nss_supp;
53
54 switch (i) {
55 case NL80211_IFTYPE_STATION:
56 break;
57 default:
58 continue;
59 }
60
61 data[idx].types_mask = BIT(i);
62 he_cap->has_he = true;
63
64 he_cap_elem->mac_cap_info[0] =
65 IEEE80211_HE_MAC_CAP0_HTC_HE;
66 he_cap_elem->mac_cap_info[3] =
67 IEEE80211_HE_MAC_CAP3_OMI_CONTROL |
68 IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3;
69 he_cap_elem->mac_cap_info[4] =
70 IEEE80211_HE_MAC_CAP4_AMSDU_IN_AMPDU;
71
72 if (band == NL80211_BAND_2GHZ)
73 he_cap_elem->phy_cap_info[0] =
74 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G;
75 else
76 he_cap_elem->phy_cap_info[0] =
77 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G;
78
79 he_cap_elem->phy_cap_info[1] =
80 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD;
81 he_cap_elem->phy_cap_info[2] =
82 IEEE80211_HE_PHY_CAP2_NDP_4x_LTF_AND_3_2US |
83 IEEE80211_HE_PHY_CAP2_STBC_TX_UNDER_80MHZ |
84 IEEE80211_HE_PHY_CAP2_STBC_RX_UNDER_80MHZ |
85 IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO |
86 IEEE80211_HE_PHY_CAP2_UL_MU_PARTIAL_MU_MIMO;
87
88 switch (i) {
89 case NL80211_IFTYPE_STATION:
90 he_cap_elem->mac_cap_info[1] |=
91 IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US;
92
93 if (band == NL80211_BAND_2GHZ)
94 he_cap_elem->phy_cap_info[0] |=
95 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_RU_MAPPING_IN_2G;
96 else
97 he_cap_elem->phy_cap_info[0] |=
98 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_RU_MAPPING_IN_5G;
99
100 he_cap_elem->phy_cap_info[1] |=
101 IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A |
102 IEEE80211_HE_PHY_CAP1_HE_LTF_AND_GI_FOR_HE_PPDUS_0_8US;
103 he_cap_elem->phy_cap_info[3] |=
104 IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK |
105 IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK;
106 he_cap_elem->phy_cap_info[4] |=
107 IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE |
108 IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_4;
109 he_cap_elem->phy_cap_info[5] |=
110 IEEE80211_HE_PHY_CAP5_NG16_SU_FEEDBACK |
111 IEEE80211_HE_PHY_CAP5_NG16_MU_FEEDBACK;
112 he_cap_elem->phy_cap_info[6] |=
113 IEEE80211_HE_PHY_CAP6_CODEBOOK_SIZE_42_SU |
114 IEEE80211_HE_PHY_CAP6_CODEBOOK_SIZE_75_MU |
115 IEEE80211_HE_PHY_CAP6_TRIG_CQI_FB |
116 IEEE80211_HE_PHY_CAP6_PARTIAL_BW_EXT_RANGE |
117 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT;
118 he_cap_elem->phy_cap_info[7] |=
119 IEEE80211_HE_PHY_CAP7_POWER_BOOST_FACTOR_SUPP |
120 IEEE80211_HE_PHY_CAP7_HE_SU_MU_PPDU_4XLTF_AND_08_US_GI;
121 he_cap_elem->phy_cap_info[8] |=
122 IEEE80211_HE_PHY_CAP8_20MHZ_IN_40MHZ_HE_PPDU_IN_2G |
123 IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_484;
124 he_cap_elem->phy_cap_info[9] |=
125 IEEE80211_HE_PHY_CAP9_LONGER_THAN_16_SIGB_OFDM_SYM |
126 IEEE80211_HE_PHY_CAP9_NON_TRIGGERED_CQI_FEEDBACK |
127 IEEE80211_HE_PHY_CAP9_TX_1024_QAM_LESS_THAN_242_TONE_RU |
128 IEEE80211_HE_PHY_CAP9_RX_1024_QAM_LESS_THAN_242_TONE_RU |
129 IEEE80211_HE_PHY_CAP9_RX_FULL_BW_SU_USING_MU_WITH_COMP_SIGB |
130 IEEE80211_HE_PHY_CAP9_RX_FULL_BW_SU_USING_MU_WITH_NON_COMP_SIGB;
131 break;
132 }
133
134 he_mcs->rx_mcs_80 = cpu_to_le16(mcs_map);
135 he_mcs->tx_mcs_80 = cpu_to_le16(mcs_map);
136
137 memset(he_cap->ppe_thres, 0, sizeof(he_cap->ppe_thres));
138 if (he_cap_elem->phy_cap_info[6] &
139 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) {
140 mt7921_gen_ppe_thresh(he_cap->ppe_thres, nss);
141 } else {
142 he_cap_elem->phy_cap_info[9] |=
143 IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_16US;
144 }
145
146 if (band == NL80211_BAND_6GHZ) {
147 struct ieee80211_supported_band *sband =
148 &phy->mt76->sband_5g.sband;
149 struct ieee80211_sta_vht_cap *vht_cap = &sband->vht_cap;
150 struct ieee80211_sta_ht_cap *ht_cap = &sband->ht_cap;
151 u32 exp;
152 u16 cap;
153
154 cap = u16_encode_bits(ht_cap->ampdu_density,
155 IEEE80211_HE_6GHZ_CAP_MIN_MPDU_START);
156 exp = u32_get_bits(vht_cap->cap,
157 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK);
158 cap |= u16_encode_bits(exp,
159 IEEE80211_HE_6GHZ_CAP_MAX_AMPDU_LEN_EXP);
160 exp = u32_get_bits(vht_cap->cap,
161 IEEE80211_VHT_CAP_MAX_MPDU_MASK);
162 cap |= u16_encode_bits(exp,
163 IEEE80211_HE_6GHZ_CAP_MAX_MPDU_LEN);
164 if (vht_cap->cap & IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN)
165 cap |= IEEE80211_HE_6GHZ_CAP_TX_ANTPAT_CONS;
166 if (vht_cap->cap & IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN)
167 cap |= IEEE80211_HE_6GHZ_CAP_RX_ANTPAT_CONS;
168
169 data->he_6ghz_capa.capa = cpu_to_le16(cap);
170 }
171 idx++;
172 }
173
174 return idx;
175 }
176
mt7921_set_stream_he_caps(struct mt7921_phy * phy)177 void mt7921_set_stream_he_caps(struct mt7921_phy *phy)
178 {
179 struct ieee80211_sband_iftype_data *data;
180 struct ieee80211_supported_band *band;
181 int n;
182
183 if (phy->mt76->cap.has_2ghz) {
184 data = phy->iftype[NL80211_BAND_2GHZ];
185 n = mt7921_init_he_caps(phy, NL80211_BAND_2GHZ, data);
186
187 band = &phy->mt76->sband_2g.sband;
188 band->iftype_data = data;
189 band->n_iftype_data = n;
190 }
191
192 if (phy->mt76->cap.has_5ghz) {
193 data = phy->iftype[NL80211_BAND_5GHZ];
194 n = mt7921_init_he_caps(phy, NL80211_BAND_5GHZ, data);
195
196 band = &phy->mt76->sband_5g.sband;
197 band->iftype_data = data;
198 band->n_iftype_data = n;
199
200 if (phy->mt76->cap.has_6ghz) {
201 data = phy->iftype[NL80211_BAND_6GHZ];
202 n = mt7921_init_he_caps(phy, NL80211_BAND_6GHZ, data);
203
204 band = &phy->mt76->sband_6g.sband;
205 band->iftype_data = data;
206 band->n_iftype_data = n;
207 }
208 }
209 }
210
__mt7921_start(struct mt7921_phy * phy)211 int __mt7921_start(struct mt7921_phy *phy)
212 {
213 struct mt76_phy *mphy = phy->mt76;
214 int err;
215
216 err = mt76_connac_mcu_set_mac_enable(mphy->dev, 0, true, false);
217 if (err)
218 return err;
219
220 err = mt76_connac_mcu_set_channel_domain(mphy);
221 if (err)
222 return err;
223
224 err = mt7921_mcu_set_chan_info(phy, MCU_EXT_CMD_SET_RX_PATH);
225 if (err)
226 return err;
227
228 err = mt76_connac_mcu_set_rate_txpower(phy->mt76);
229 if (err)
230 return err;
231
232 mt7921_mac_reset_counters(phy);
233 set_bit(MT76_STATE_RUNNING, &mphy->state);
234
235 ieee80211_queue_delayed_work(mphy->hw, &mphy->mac_work,
236 MT7921_WATCHDOG_TIME);
237
238 return 0;
239 }
240 EXPORT_SYMBOL_GPL(__mt7921_start);
241
mt7921_start(struct ieee80211_hw * hw)242 static int mt7921_start(struct ieee80211_hw *hw)
243 {
244 struct mt7921_phy *phy = mt7921_hw_phy(hw);
245 int err;
246
247 mt7921_mutex_acquire(phy->dev);
248 err = __mt7921_start(phy);
249 mt7921_mutex_release(phy->dev);
250
251 return err;
252 }
253
mt7921_stop(struct ieee80211_hw * hw)254 static void mt7921_stop(struct ieee80211_hw *hw)
255 {
256 struct mt7921_dev *dev = mt7921_hw_dev(hw);
257 struct mt7921_phy *phy = mt7921_hw_phy(hw);
258
259 cancel_delayed_work_sync(&phy->mt76->mac_work);
260
261 cancel_delayed_work_sync(&dev->pm.ps_work);
262 cancel_work_sync(&dev->pm.wake_work);
263 mt76_connac_free_pending_tx_skbs(&dev->pm, NULL);
264
265 mt7921_mutex_acquire(dev);
266 clear_bit(MT76_STATE_RUNNING, &phy->mt76->state);
267 mt76_connac_mcu_set_mac_enable(&dev->mt76, 0, false, false);
268 mt7921_mutex_release(dev);
269 }
270
mt7921_add_interface(struct ieee80211_hw * hw,struct ieee80211_vif * vif)271 static int mt7921_add_interface(struct ieee80211_hw *hw,
272 struct ieee80211_vif *vif)
273 {
274 struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv;
275 struct mt7921_dev *dev = mt7921_hw_dev(hw);
276 struct mt7921_phy *phy = mt7921_hw_phy(hw);
277 struct mt76_txq *mtxq;
278 int idx, ret = 0;
279
280 mt7921_mutex_acquire(dev);
281
282 mvif->mt76.idx = ffs(~dev->mt76.vif_mask) - 1;
283 if (mvif->mt76.idx >= MT7921_MAX_INTERFACES) {
284 ret = -ENOSPC;
285 goto out;
286 }
287
288 mvif->mt76.omac_idx = mvif->mt76.idx;
289 mvif->phy = phy;
290 mvif->mt76.band_idx = 0;
291 mvif->mt76.wmm_idx = mvif->mt76.idx % MT7921_MAX_WMM_SETS;
292
293 ret = mt76_connac_mcu_uni_add_dev(&dev->mphy, vif, &mvif->sta.wcid,
294 true);
295 if (ret)
296 goto out;
297
298 dev->mt76.vif_mask |= BIT(mvif->mt76.idx);
299 phy->omac_mask |= BIT_ULL(mvif->mt76.omac_idx);
300
301 idx = MT7921_WTBL_RESERVED - mvif->mt76.idx;
302
303 INIT_LIST_HEAD(&mvif->sta.poll_list);
304 mvif->sta.wcid.idx = idx;
305 mvif->sta.wcid.ext_phy = mvif->mt76.band_idx;
306 mvif->sta.wcid.hw_key_idx = -1;
307 mvif->sta.wcid.tx_info |= MT_WCID_TX_INFO_SET;
308 mt76_packet_id_init(&mvif->sta.wcid);
309
310 mt7921_mac_wtbl_update(dev, idx,
311 MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
312
313 ewma_rssi_init(&mvif->rssi);
314
315 rcu_assign_pointer(dev->mt76.wcid[idx], &mvif->sta.wcid);
316 if (vif->txq) {
317 mtxq = (struct mt76_txq *)vif->txq->drv_priv;
318 mtxq->wcid = &mvif->sta.wcid;
319 }
320
321 if (vif->type != NL80211_IFTYPE_AP &&
322 (!mvif->mt76.omac_idx || mvif->mt76.omac_idx > 3))
323 vif->offload_flags = 0;
324
325 vif->offload_flags |= IEEE80211_OFFLOAD_ENCAP_4ADDR;
326
327 out:
328 mt7921_mutex_release(dev);
329
330 return ret;
331 }
332
mt7921_remove_interface(struct ieee80211_hw * hw,struct ieee80211_vif * vif)333 static void mt7921_remove_interface(struct ieee80211_hw *hw,
334 struct ieee80211_vif *vif)
335 {
336 struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv;
337 struct mt7921_sta *msta = &mvif->sta;
338 struct mt7921_dev *dev = mt7921_hw_dev(hw);
339 struct mt7921_phy *phy = mt7921_hw_phy(hw);
340 int idx = msta->wcid.idx;
341
342 mt7921_mutex_acquire(dev);
343 mt76_connac_free_pending_tx_skbs(&dev->pm, &msta->wcid);
344 mt76_connac_mcu_uni_add_dev(&dev->mphy, vif, &mvif->sta.wcid, false);
345
346 rcu_assign_pointer(dev->mt76.wcid[idx], NULL);
347
348 dev->mt76.vif_mask &= ~BIT(mvif->mt76.idx);
349 phy->omac_mask &= ~BIT_ULL(mvif->mt76.omac_idx);
350 mt7921_mutex_release(dev);
351
352 spin_lock_bh(&dev->sta_poll_lock);
353 if (!list_empty(&msta->poll_list))
354 list_del_init(&msta->poll_list);
355 spin_unlock_bh(&dev->sta_poll_lock);
356
357 mt76_packet_id_flush(&dev->mt76, &msta->wcid);
358 }
359
mt7921_set_channel(struct mt7921_phy * phy)360 static int mt7921_set_channel(struct mt7921_phy *phy)
361 {
362 struct mt7921_dev *dev = phy->dev;
363 int ret;
364
365 cancel_delayed_work_sync(&phy->mt76->mac_work);
366
367 mt7921_mutex_acquire(dev);
368 set_bit(MT76_RESET, &phy->mt76->state);
369
370 mt76_set_channel(phy->mt76);
371
372 ret = mt7921_mcu_set_chan_info(phy, MCU_EXT_CMD_CHANNEL_SWITCH);
373 if (ret)
374 goto out;
375
376 mt7921_mac_set_timing(phy);
377
378 mt7921_mac_reset_counters(phy);
379 phy->noise = 0;
380
381 out:
382 clear_bit(MT76_RESET, &phy->mt76->state);
383 mt7921_mutex_release(dev);
384
385 mt76_worker_schedule(&dev->mt76.tx_worker);
386 ieee80211_queue_delayed_work(phy->mt76->hw, &phy->mt76->mac_work,
387 MT7921_WATCHDOG_TIME);
388
389 return ret;
390 }
391
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)392 static int mt7921_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
393 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
394 struct ieee80211_key_conf *key)
395 {
396 struct mt7921_dev *dev = mt7921_hw_dev(hw);
397 struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv;
398 struct mt7921_sta *msta = sta ? (struct mt7921_sta *)sta->drv_priv :
399 &mvif->sta;
400 struct mt76_wcid *wcid = &msta->wcid;
401 u8 *wcid_keyidx = &wcid->hw_key_idx;
402 int idx = key->keyidx, err = 0;
403
404 /* The hardware does not support per-STA RX GTK, fallback
405 * to software mode for these.
406 */
407 if ((vif->type == NL80211_IFTYPE_ADHOC ||
408 vif->type == NL80211_IFTYPE_MESH_POINT) &&
409 (key->cipher == WLAN_CIPHER_SUITE_TKIP ||
410 key->cipher == WLAN_CIPHER_SUITE_CCMP) &&
411 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE))
412 return -EOPNOTSUPP;
413
414 /* fall back to sw encryption for unsupported ciphers */
415 switch (key->cipher) {
416 case WLAN_CIPHER_SUITE_AES_CMAC:
417 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIE;
418 wcid_keyidx = &wcid->hw_key_idx2;
419 break;
420 case WLAN_CIPHER_SUITE_WEP40:
421 case WLAN_CIPHER_SUITE_WEP104:
422 if (!mvif->wep_sta)
423 return -EOPNOTSUPP;
424 break;
425 case WLAN_CIPHER_SUITE_TKIP:
426 case WLAN_CIPHER_SUITE_CCMP:
427 case WLAN_CIPHER_SUITE_CCMP_256:
428 case WLAN_CIPHER_SUITE_GCMP:
429 case WLAN_CIPHER_SUITE_GCMP_256:
430 case WLAN_CIPHER_SUITE_SMS4:
431 break;
432 default:
433 return -EOPNOTSUPP;
434 }
435
436 mt7921_mutex_acquire(dev);
437
438 if (cmd == SET_KEY)
439 *wcid_keyidx = idx;
440 else if (idx == *wcid_keyidx)
441 *wcid_keyidx = -1;
442 else
443 goto out;
444
445 mt76_wcid_key_setup(&dev->mt76, wcid,
446 cmd == SET_KEY ? key : NULL);
447
448 err = mt7921_mcu_add_key(dev, vif, msta, key, cmd);
449 if (err)
450 goto out;
451
452 if (key->cipher == WLAN_CIPHER_SUITE_WEP104 ||
453 key->cipher == WLAN_CIPHER_SUITE_WEP40)
454 err = mt7921_mcu_add_key(dev, vif, mvif->wep_sta, key, cmd);
455 out:
456 mt7921_mutex_release(dev);
457
458 return err;
459 }
460
mt7921_config(struct ieee80211_hw * hw,u32 changed)461 static int mt7921_config(struct ieee80211_hw *hw, u32 changed)
462 {
463 struct mt7921_dev *dev = mt7921_hw_dev(hw);
464 struct mt7921_phy *phy = mt7921_hw_phy(hw);
465 int ret;
466
467 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
468 ieee80211_stop_queues(hw);
469 ret = mt7921_set_channel(phy);
470 if (ret)
471 return ret;
472 ieee80211_wake_queues(hw);
473 }
474
475 mt7921_mutex_acquire(dev);
476
477 if (changed & IEEE80211_CONF_CHANGE_POWER)
478 mt76_connac_mcu_set_rate_txpower(phy->mt76);
479
480 if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
481 bool enabled = !!(hw->conf.flags & IEEE80211_CONF_MONITOR);
482
483 if (!enabled)
484 phy->rxfilter |= MT_WF_RFCR_DROP_OTHER_UC;
485 else
486 phy->rxfilter &= ~MT_WF_RFCR_DROP_OTHER_UC;
487
488 mt76_rmw_field(dev, MT_DMA_DCR0(0), MT_DMA_DCR0_RXD_G5_EN,
489 enabled);
490 mt76_wr(dev, MT_WF_RFCR(0), phy->rxfilter);
491 }
492
493 mt7921_mutex_release(dev);
494
495 return 0;
496 }
497
498 static int
mt7921_conf_tx(struct ieee80211_hw * hw,struct ieee80211_vif * vif,u16 queue,const struct ieee80211_tx_queue_params * params)499 mt7921_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif, u16 queue,
500 const struct ieee80211_tx_queue_params *params)
501 {
502 struct mt7921_dev *dev = mt7921_hw_dev(hw);
503 struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv;
504
505 /* no need to update right away, we'll get BSS_CHANGED_QOS */
506 queue = mt7921_lmac_mapping(dev, queue);
507 mvif->queue_params[queue] = *params;
508
509 return 0;
510 }
511
mt7921_configure_filter(struct ieee80211_hw * hw,unsigned int changed_flags,unsigned int * total_flags,u64 multicast)512 static void mt7921_configure_filter(struct ieee80211_hw *hw,
513 unsigned int changed_flags,
514 unsigned int *total_flags,
515 u64 multicast)
516 {
517 struct mt7921_dev *dev = mt7921_hw_dev(hw);
518 struct mt7921_phy *phy = mt7921_hw_phy(hw);
519 u32 ctl_flags = MT_WF_RFCR1_DROP_ACK |
520 MT_WF_RFCR1_DROP_BF_POLL |
521 MT_WF_RFCR1_DROP_BA |
522 MT_WF_RFCR1_DROP_CFEND |
523 MT_WF_RFCR1_DROP_CFACK;
524 u32 flags = 0;
525
526 #define MT76_FILTER(_flag, _hw) do { \
527 flags |= *total_flags & FIF_##_flag; \
528 phy->rxfilter &= ~(_hw); \
529 phy->rxfilter |= !(flags & FIF_##_flag) * (_hw); \
530 } while (0)
531
532 mt7921_mutex_acquire(dev);
533
534 phy->rxfilter &= ~(MT_WF_RFCR_DROP_OTHER_BSS |
535 MT_WF_RFCR_DROP_OTHER_BEACON |
536 MT_WF_RFCR_DROP_FRAME_REPORT |
537 MT_WF_RFCR_DROP_PROBEREQ |
538 MT_WF_RFCR_DROP_MCAST_FILTERED |
539 MT_WF_RFCR_DROP_MCAST |
540 MT_WF_RFCR_DROP_BCAST |
541 MT_WF_RFCR_DROP_DUPLICATE |
542 MT_WF_RFCR_DROP_A2_BSSID |
543 MT_WF_RFCR_DROP_UNWANTED_CTL |
544 MT_WF_RFCR_DROP_STBC_MULTI);
545
546 MT76_FILTER(OTHER_BSS, MT_WF_RFCR_DROP_OTHER_TIM |
547 MT_WF_RFCR_DROP_A3_MAC |
548 MT_WF_RFCR_DROP_A3_BSSID);
549
550 MT76_FILTER(FCSFAIL, MT_WF_RFCR_DROP_FCSFAIL);
551
552 MT76_FILTER(CONTROL, MT_WF_RFCR_DROP_CTS |
553 MT_WF_RFCR_DROP_RTS |
554 MT_WF_RFCR_DROP_CTL_RSV |
555 MT_WF_RFCR_DROP_NDPA);
556
557 *total_flags = flags;
558 mt76_wr(dev, MT_WF_RFCR(0), phy->rxfilter);
559
560 if (*total_flags & FIF_CONTROL)
561 mt76_clear(dev, MT_WF_RFCR1(0), ctl_flags);
562 else
563 mt76_set(dev, MT_WF_RFCR1(0), ctl_flags);
564
565 mt7921_mutex_release(dev);
566 }
567
mt7921_bss_info_changed(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * info,u32 changed)568 static void mt7921_bss_info_changed(struct ieee80211_hw *hw,
569 struct ieee80211_vif *vif,
570 struct ieee80211_bss_conf *info,
571 u32 changed)
572 {
573 struct mt7921_phy *phy = mt7921_hw_phy(hw);
574 struct mt7921_dev *dev = mt7921_hw_dev(hw);
575
576 mt7921_mutex_acquire(dev);
577
578 if (changed & BSS_CHANGED_ERP_SLOT) {
579 int slottime = info->use_short_slot ? 9 : 20;
580
581 if (slottime != phy->slottime) {
582 phy->slottime = slottime;
583 mt7921_mac_set_timing(phy);
584 }
585 }
586
587 /* ensure that enable txcmd_mode after bss_info */
588 if (changed & (BSS_CHANGED_QOS | BSS_CHANGED_BEACON_ENABLED))
589 mt7921_mcu_set_tx(dev, vif);
590
591 if (changed & BSS_CHANGED_PS)
592 mt7921_mcu_uni_bss_ps(dev, vif);
593
594 if (changed & BSS_CHANGED_ASSOC) {
595 mt7921_mcu_sta_update(dev, NULL, vif, true,
596 MT76_STA_INFO_STATE_ASSOC);
597 if (dev->pm.enable)
598 mt7921_mcu_set_beacon_filter(dev, vif, info->assoc);
599 }
600
601 if (changed & BSS_CHANGED_ARP_FILTER) {
602 struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv;
603
604 mt76_connac_mcu_update_arp_filter(&dev->mt76, &mvif->mt76,
605 info);
606 }
607
608 mt7921_mutex_release(dev);
609 }
610
mt7921_mac_sta_add(struct mt76_dev * mdev,struct ieee80211_vif * vif,struct ieee80211_sta * sta)611 int mt7921_mac_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif,
612 struct ieee80211_sta *sta)
613 {
614 struct mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76);
615 struct mt7921_sta *msta = (struct mt7921_sta *)sta->drv_priv;
616 struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv;
617 int ret, idx;
618
619 idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7921_WTBL_STA - 1);
620 if (idx < 0)
621 return -ENOSPC;
622
623 INIT_LIST_HEAD(&msta->poll_list);
624 msta->vif = mvif;
625 msta->wcid.sta = 1;
626 msta->wcid.idx = idx;
627 msta->wcid.ext_phy = mvif->mt76.band_idx;
628 msta->wcid.tx_info |= MT_WCID_TX_INFO_SET;
629 msta->last_txs = jiffies;
630
631 ret = mt76_connac_pm_wake(&dev->mphy, &dev->pm);
632 if (ret)
633 return ret;
634
635 if (vif->type == NL80211_IFTYPE_STATION)
636 mvif->wep_sta = msta;
637
638 mt7921_mac_wtbl_update(dev, idx,
639 MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
640
641 ret = mt7921_mcu_sta_update(dev, sta, vif, true,
642 MT76_STA_INFO_STATE_NONE);
643 if (ret)
644 return ret;
645
646 mt76_connac_power_save_sched(&dev->mphy, &dev->pm);
647
648 return 0;
649 }
650 EXPORT_SYMBOL_GPL(mt7921_mac_sta_add);
651
mt7921_mac_sta_assoc(struct mt76_dev * mdev,struct ieee80211_vif * vif,struct ieee80211_sta * sta)652 void mt7921_mac_sta_assoc(struct mt76_dev *mdev, struct ieee80211_vif *vif,
653 struct ieee80211_sta *sta)
654 {
655 struct mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76);
656 struct mt7921_sta *msta = (struct mt7921_sta *)sta->drv_priv;
657 struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv;
658
659 mt7921_mutex_acquire(dev);
660
661 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls)
662 mt76_connac_mcu_uni_add_bss(&dev->mphy, vif, &mvif->sta.wcid,
663 true);
664
665 mt7921_mac_wtbl_update(dev, msta->wcid.idx,
666 MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
667
668 mt7921_mcu_sta_update(dev, sta, vif, true, MT76_STA_INFO_STATE_ASSOC);
669
670 mt7921_mutex_release(dev);
671 }
672 EXPORT_SYMBOL_GPL(mt7921_mac_sta_assoc);
673
mt7921_mac_sta_remove(struct mt76_dev * mdev,struct ieee80211_vif * vif,struct ieee80211_sta * sta)674 void mt7921_mac_sta_remove(struct mt76_dev *mdev, struct ieee80211_vif *vif,
675 struct ieee80211_sta *sta)
676 {
677 struct mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76);
678 struct mt7921_sta *msta = (struct mt7921_sta *)sta->drv_priv;
679
680 mt76_connac_free_pending_tx_skbs(&dev->pm, &msta->wcid);
681 mt76_connac_pm_wake(&dev->mphy, &dev->pm);
682
683 mt7921_mcu_sta_update(dev, sta, vif, false, MT76_STA_INFO_STATE_NONE);
684 mt7921_mac_wtbl_update(dev, msta->wcid.idx,
685 MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
686
687 if (vif->type == NL80211_IFTYPE_STATION) {
688 struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv;
689
690 mvif->wep_sta = NULL;
691 ewma_rssi_init(&mvif->rssi);
692 if (!sta->tdls)
693 mt76_connac_mcu_uni_add_bss(&dev->mphy, vif,
694 &mvif->sta.wcid, false);
695 }
696
697 spin_lock_bh(&dev->sta_poll_lock);
698 if (!list_empty(&msta->poll_list))
699 list_del_init(&msta->poll_list);
700 spin_unlock_bh(&dev->sta_poll_lock);
701
702 mt76_connac_power_save_sched(&dev->mphy, &dev->pm);
703 }
704 EXPORT_SYMBOL_GPL(mt7921_mac_sta_remove);
705
mt7921_tx_worker(struct mt76_worker * w)706 void mt7921_tx_worker(struct mt76_worker *w)
707 {
708 struct mt7921_dev *dev = container_of(w, struct mt7921_dev,
709 mt76.tx_worker);
710
711 if (!mt76_connac_pm_ref(&dev->mphy, &dev->pm)) {
712 queue_work(dev->mt76.wq, &dev->pm.wake_work);
713 return;
714 }
715
716 mt76_txq_schedule_all(&dev->mphy);
717 mt76_connac_pm_unref(&dev->mphy, &dev->pm);
718 }
719
mt7921_tx(struct ieee80211_hw * hw,struct ieee80211_tx_control * control,struct sk_buff * skb)720 static void mt7921_tx(struct ieee80211_hw *hw,
721 struct ieee80211_tx_control *control,
722 struct sk_buff *skb)
723 {
724 struct mt7921_dev *dev = mt7921_hw_dev(hw);
725 struct mt76_phy *mphy = hw->priv;
726 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
727 struct ieee80211_vif *vif = info->control.vif;
728 struct mt76_wcid *wcid = &dev->mt76.global_wcid;
729 int qid;
730
731 if (control->sta) {
732 struct mt7921_sta *sta;
733
734 sta = (struct mt7921_sta *)control->sta->drv_priv;
735 wcid = &sta->wcid;
736 }
737
738 if (vif && !control->sta) {
739 struct mt7921_vif *mvif;
740
741 mvif = (struct mt7921_vif *)vif->drv_priv;
742 wcid = &mvif->sta.wcid;
743 }
744
745 if (mt76_connac_pm_ref(mphy, &dev->pm)) {
746 mt76_tx(mphy, control->sta, wcid, skb);
747 mt76_connac_pm_unref(mphy, &dev->pm);
748 return;
749 }
750
751 qid = skb_get_queue_mapping(skb);
752 if (qid >= MT_TXQ_PSD) {
753 qid = IEEE80211_AC_BE;
754 skb_set_queue_mapping(skb, qid);
755 }
756
757 mt76_connac_pm_queue_skb(hw, &dev->pm, wcid, skb);
758 }
759
mt7921_set_rts_threshold(struct ieee80211_hw * hw,u32 val)760 static int mt7921_set_rts_threshold(struct ieee80211_hw *hw, u32 val)
761 {
762 struct mt7921_dev *dev = mt7921_hw_dev(hw);
763
764 mt7921_mutex_acquire(dev);
765 mt76_connac_mcu_set_rts_thresh(&dev->mt76, val, 0);
766 mt7921_mutex_release(dev);
767
768 return 0;
769 }
770
771 static int
mt7921_ampdu_action(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_ampdu_params * params)772 mt7921_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
773 struct ieee80211_ampdu_params *params)
774 {
775 enum ieee80211_ampdu_mlme_action action = params->action;
776 struct mt7921_dev *dev = mt7921_hw_dev(hw);
777 struct ieee80211_sta *sta = params->sta;
778 struct ieee80211_txq *txq = sta->txq[params->tid];
779 struct mt7921_sta *msta = (struct mt7921_sta *)sta->drv_priv;
780 u16 tid = params->tid;
781 u16 ssn = params->ssn;
782 struct mt76_txq *mtxq;
783 int ret = 0;
784
785 if (!txq)
786 return -EINVAL;
787
788 mtxq = (struct mt76_txq *)txq->drv_priv;
789
790 mt7921_mutex_acquire(dev);
791 switch (action) {
792 case IEEE80211_AMPDU_RX_START:
793 mt76_rx_aggr_start(&dev->mt76, &msta->wcid, tid, ssn,
794 params->buf_size);
795 mt7921_mcu_uni_rx_ba(dev, params, true);
796 break;
797 case IEEE80211_AMPDU_RX_STOP:
798 mt76_rx_aggr_stop(&dev->mt76, &msta->wcid, tid);
799 mt7921_mcu_uni_rx_ba(dev, params, false);
800 break;
801 case IEEE80211_AMPDU_TX_OPERATIONAL:
802 mtxq->aggr = true;
803 mtxq->send_bar = false;
804 mt7921_mcu_uni_tx_ba(dev, params, true);
805 break;
806 case IEEE80211_AMPDU_TX_STOP_FLUSH:
807 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
808 mtxq->aggr = false;
809 clear_bit(tid, &msta->ampdu_state);
810 mt7921_mcu_uni_tx_ba(dev, params, false);
811 break;
812 case IEEE80211_AMPDU_TX_START:
813 set_bit(tid, &msta->ampdu_state);
814 ret = IEEE80211_AMPDU_TX_START_IMMEDIATE;
815 break;
816 case IEEE80211_AMPDU_TX_STOP_CONT:
817 mtxq->aggr = false;
818 clear_bit(tid, &msta->ampdu_state);
819 mt7921_mcu_uni_tx_ba(dev, params, false);
820 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
821 break;
822 }
823 mt7921_mutex_release(dev);
824
825 return ret;
826 }
827
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)828 static int mt7921_sta_state(struct ieee80211_hw *hw,
829 struct ieee80211_vif *vif,
830 struct ieee80211_sta *sta,
831 enum ieee80211_sta_state old_state,
832 enum ieee80211_sta_state new_state)
833 {
834 struct mt7921_dev *dev = mt7921_hw_dev(hw);
835
836 if (dev->pm.ds_enable) {
837 mt7921_mutex_acquire(dev);
838 mt76_connac_sta_state_dp(&dev->mt76, old_state, new_state);
839 mt7921_mutex_release(dev);
840 }
841
842 return mt76_sta_state(hw, vif, sta, old_state, new_state);
843 }
844
845 static int
mt7921_get_stats(struct ieee80211_hw * hw,struct ieee80211_low_level_stats * stats)846 mt7921_get_stats(struct ieee80211_hw *hw,
847 struct ieee80211_low_level_stats *stats)
848 {
849 struct mt7921_phy *phy = mt7921_hw_phy(hw);
850 struct mib_stats *mib = &phy->mib;
851
852 mt7921_mutex_acquire(phy->dev);
853
854 stats->dot11RTSSuccessCount = mib->rts_cnt;
855 stats->dot11RTSFailureCount = mib->rts_retries_cnt;
856 stats->dot11FCSErrorCount = mib->fcs_err_cnt;
857 stats->dot11ACKFailureCount = mib->ack_fail_cnt;
858
859 mt7921_mutex_release(phy->dev);
860
861 return 0;
862 }
863
864 static const char mt7921_gstrings_stats[][ETH_GSTRING_LEN] = {
865 /* tx counters */
866 "tx_ampdu_cnt",
867 "tx_mpdu_attempts",
868 "tx_mpdu_success",
869 "tx_pkt_ebf_cnt",
870 "tx_pkt_ibf_cnt",
871 "tx_ampdu_len:0-1",
872 "tx_ampdu_len:2-10",
873 "tx_ampdu_len:11-19",
874 "tx_ampdu_len:20-28",
875 "tx_ampdu_len:29-37",
876 "tx_ampdu_len:38-46",
877 "tx_ampdu_len:47-55",
878 "tx_ampdu_len:56-79",
879 "tx_ampdu_len:80-103",
880 "tx_ampdu_len:104-127",
881 "tx_ampdu_len:128-151",
882 "tx_ampdu_len:152-175",
883 "tx_ampdu_len:176-199",
884 "tx_ampdu_len:200-223",
885 "tx_ampdu_len:224-247",
886 "ba_miss_count",
887 "tx_beamformer_ppdu_iBF",
888 "tx_beamformer_ppdu_eBF",
889 "tx_beamformer_rx_feedback_all",
890 "tx_beamformer_rx_feedback_he",
891 "tx_beamformer_rx_feedback_vht",
892 "tx_beamformer_rx_feedback_ht",
893 "tx_msdu_pack_1",
894 "tx_msdu_pack_2",
895 "tx_msdu_pack_3",
896 "tx_msdu_pack_4",
897 "tx_msdu_pack_5",
898 "tx_msdu_pack_6",
899 "tx_msdu_pack_7",
900 "tx_msdu_pack_8",
901 /* rx counters */
902 "rx_mpdu_cnt",
903 "rx_ampdu_cnt",
904 "rx_ampdu_bytes_cnt",
905 "rx_ba_cnt",
906 /* per vif counters */
907 "v_tx_mode_cck",
908 "v_tx_mode_ofdm",
909 "v_tx_mode_ht",
910 "v_tx_mode_ht_gf",
911 "v_tx_mode_vht",
912 "v_tx_mode_he_su",
913 "v_tx_mode_he_ext_su",
914 "v_tx_mode_he_tb",
915 "v_tx_mode_he_mu",
916 "v_tx_bw_20",
917 "v_tx_bw_40",
918 "v_tx_bw_80",
919 "v_tx_bw_160",
920 "v_tx_mcs_0",
921 "v_tx_mcs_1",
922 "v_tx_mcs_2",
923 "v_tx_mcs_3",
924 "v_tx_mcs_4",
925 "v_tx_mcs_5",
926 "v_tx_mcs_6",
927 "v_tx_mcs_7",
928 "v_tx_mcs_8",
929 "v_tx_mcs_9",
930 "v_tx_mcs_10",
931 "v_tx_mcs_11",
932 };
933
934 static void
mt7921_get_et_strings(struct ieee80211_hw * hw,struct ieee80211_vif * vif,u32 sset,u8 * data)935 mt7921_get_et_strings(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
936 u32 sset, u8 *data)
937 {
938 if (sset != ETH_SS_STATS)
939 return;
940
941 memcpy(data, *mt7921_gstrings_stats, sizeof(mt7921_gstrings_stats));
942 }
943
944 static int
mt7921_get_et_sset_count(struct ieee80211_hw * hw,struct ieee80211_vif * vif,int sset)945 mt7921_get_et_sset_count(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
946 int sset)
947 {
948 return sset == ETH_SS_STATS ? ARRAY_SIZE(mt7921_gstrings_stats) : 0;
949 }
950
951 static void
mt7921_ethtool_worker(void * wi_data,struct ieee80211_sta * sta)952 mt7921_ethtool_worker(void *wi_data, struct ieee80211_sta *sta)
953 {
954 struct mt7921_sta *msta = (struct mt7921_sta *)sta->drv_priv;
955 struct mt76_ethtool_worker_info *wi = wi_data;
956
957 if (msta->vif->mt76.idx != wi->idx)
958 return;
959
960 mt76_ethtool_worker(wi, &msta->stats);
961 }
962
963 static
mt7921_get_et_stats(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ethtool_stats * stats,u64 * data)964 void mt7921_get_et_stats(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
965 struct ethtool_stats *stats, u64 *data)
966 {
967 struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv;
968 struct mt7921_phy *phy = mt7921_hw_phy(hw);
969 struct mt7921_dev *dev = phy->dev;
970 struct mib_stats *mib = &phy->mib;
971 struct mt76_ethtool_worker_info wi = {
972 .data = data,
973 .idx = mvif->mt76.idx,
974 };
975 int i, ei = 0;
976
977 mt7921_mutex_acquire(dev);
978
979 mt7921_mac_update_mib_stats(phy);
980
981 data[ei++] = mib->tx_ampdu_cnt;
982 data[ei++] = mib->tx_mpdu_attempts_cnt;
983 data[ei++] = mib->tx_mpdu_success_cnt;
984 data[ei++] = mib->tx_pkt_ebf_cnt;
985 data[ei++] = mib->tx_pkt_ibf_cnt;
986
987 /* Tx ampdu stat */
988 for (i = 0; i < 15; i++)
989 data[ei++] = dev->mt76.aggr_stats[i];
990
991 data[ei++] = phy->mib.ba_miss_cnt;
992
993 /* Tx Beamformer monitor */
994 data[ei++] = mib->tx_bf_ibf_ppdu_cnt;
995 data[ei++] = mib->tx_bf_ebf_ppdu_cnt;
996
997 /* Tx Beamformer Rx feedback monitor */
998 data[ei++] = mib->tx_bf_rx_fb_all_cnt;
999 data[ei++] = mib->tx_bf_rx_fb_he_cnt;
1000 data[ei++] = mib->tx_bf_rx_fb_vht_cnt;
1001 data[ei++] = mib->tx_bf_rx_fb_ht_cnt;
1002
1003 /* Tx amsdu info (pack-count histogram) */
1004 for (i = 0; i < ARRAY_SIZE(mib->tx_amsdu); i++)
1005 data[ei++] = mib->tx_amsdu[i];
1006
1007 /* rx counters */
1008 data[ei++] = mib->rx_mpdu_cnt;
1009 data[ei++] = mib->rx_ampdu_cnt;
1010 data[ei++] = mib->rx_ampdu_bytes_cnt;
1011 data[ei++] = mib->rx_ba_cnt;
1012
1013 /* Add values for all stations owned by this vif */
1014 wi.initial_stat_idx = ei;
1015 ieee80211_iterate_stations_atomic(hw, mt7921_ethtool_worker, &wi);
1016
1017 mt7921_mutex_release(dev);
1018
1019 if (!wi.sta_count)
1020 return;
1021
1022 ei += wi.worker_stat_count;
1023 if (ei != ARRAY_SIZE(mt7921_gstrings_stats))
1024 dev_err(dev->mt76.dev, "ei: %d SSTATS_LEN: %zu",
1025 ei, ARRAY_SIZE(mt7921_gstrings_stats));
1026 }
1027
1028 static u64
mt7921_get_tsf(struct ieee80211_hw * hw,struct ieee80211_vif * vif)1029 mt7921_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
1030 {
1031 struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv;
1032 struct mt7921_dev *dev = mt7921_hw_dev(hw);
1033 u8 omac_idx = mvif->mt76.omac_idx;
1034 union {
1035 u64 t64;
1036 u32 t32[2];
1037 } tsf;
1038 u16 n;
1039
1040 mt7921_mutex_acquire(dev);
1041
1042 n = omac_idx > HW_BSSID_MAX ? HW_BSSID_0 : omac_idx;
1043 /* TSF software read */
1044 mt76_set(dev, MT_LPON_TCR(0, n), MT_LPON_TCR_SW_MODE);
1045 tsf.t32[0] = mt76_rr(dev, MT_LPON_UTTR0(0));
1046 tsf.t32[1] = mt76_rr(dev, MT_LPON_UTTR1(0));
1047
1048 mt7921_mutex_release(dev);
1049
1050 return tsf.t64;
1051 }
1052
1053 static void
mt7921_set_tsf(struct ieee80211_hw * hw,struct ieee80211_vif * vif,u64 timestamp)1054 mt7921_set_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1055 u64 timestamp)
1056 {
1057 struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv;
1058 struct mt7921_dev *dev = mt7921_hw_dev(hw);
1059 u8 omac_idx = mvif->mt76.omac_idx;
1060 union {
1061 u64 t64;
1062 u32 t32[2];
1063 } tsf = { .t64 = timestamp, };
1064 u16 n;
1065
1066 mt7921_mutex_acquire(dev);
1067
1068 n = omac_idx > HW_BSSID_MAX ? HW_BSSID_0 : omac_idx;
1069 mt76_wr(dev, MT_LPON_UTTR0(0), tsf.t32[0]);
1070 mt76_wr(dev, MT_LPON_UTTR1(0), tsf.t32[1]);
1071 /* TSF software overwrite */
1072 mt76_set(dev, MT_LPON_TCR(0, n), MT_LPON_TCR_SW_WRITE);
1073
1074 mt7921_mutex_release(dev);
1075 }
1076
1077 static void
mt7921_set_coverage_class(struct ieee80211_hw * hw,s16 coverage_class)1078 mt7921_set_coverage_class(struct ieee80211_hw *hw, s16 coverage_class)
1079 {
1080 struct mt7921_phy *phy = mt7921_hw_phy(hw);
1081 struct mt7921_dev *dev = phy->dev;
1082
1083 mt7921_mutex_acquire(dev);
1084 phy->coverage_class = max_t(s16, coverage_class, 0);
1085 mt7921_mac_set_timing(phy);
1086 mt7921_mutex_release(dev);
1087 }
1088
mt7921_scan_work(struct work_struct * work)1089 void mt7921_scan_work(struct work_struct *work)
1090 {
1091 struct mt7921_phy *phy;
1092
1093 phy = (struct mt7921_phy *)container_of(work, struct mt7921_phy,
1094 scan_work.work);
1095
1096 while (true) {
1097 struct mt7921_mcu_rxd *rxd;
1098 struct sk_buff *skb;
1099
1100 spin_lock_bh(&phy->dev->mt76.lock);
1101 skb = __skb_dequeue(&phy->scan_event_list);
1102 spin_unlock_bh(&phy->dev->mt76.lock);
1103
1104 if (!skb)
1105 break;
1106
1107 rxd = (struct mt7921_mcu_rxd *)skb->data;
1108 if (rxd->eid == MCU_EVENT_SCHED_SCAN_DONE) {
1109 ieee80211_sched_scan_results(phy->mt76->hw);
1110 } else if (test_and_clear_bit(MT76_HW_SCANNING,
1111 &phy->mt76->state)) {
1112 struct cfg80211_scan_info info = {
1113 .aborted = false,
1114 };
1115
1116 ieee80211_scan_completed(phy->mt76->hw, &info);
1117 }
1118 dev_kfree_skb(skb);
1119 }
1120 }
1121
1122 static int
mt7921_hw_scan(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_scan_request * req)1123 mt7921_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1124 struct ieee80211_scan_request *req)
1125 {
1126 struct mt7921_dev *dev = mt7921_hw_dev(hw);
1127 struct mt76_phy *mphy = hw->priv;
1128 int err;
1129
1130 mt7921_mutex_acquire(dev);
1131 err = mt76_connac_mcu_hw_scan(mphy, vif, req);
1132 mt7921_mutex_release(dev);
1133
1134 return err;
1135 }
1136
1137 static void
mt7921_cancel_hw_scan(struct ieee80211_hw * hw,struct ieee80211_vif * vif)1138 mt7921_cancel_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
1139 {
1140 struct mt7921_dev *dev = mt7921_hw_dev(hw);
1141 struct mt76_phy *mphy = hw->priv;
1142
1143 mt7921_mutex_acquire(dev);
1144 mt76_connac_mcu_cancel_hw_scan(mphy, vif);
1145 mt7921_mutex_release(dev);
1146 }
1147
1148 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)1149 mt7921_start_sched_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1150 struct cfg80211_sched_scan_request *req,
1151 struct ieee80211_scan_ies *ies)
1152 {
1153 struct mt7921_dev *dev = mt7921_hw_dev(hw);
1154 struct mt76_phy *mphy = hw->priv;
1155 int err;
1156
1157 mt7921_mutex_acquire(dev);
1158
1159 err = mt76_connac_mcu_sched_scan_req(mphy, vif, req);
1160 if (err < 0)
1161 goto out;
1162
1163 err = mt76_connac_mcu_sched_scan_enable(mphy, vif, true);
1164 out:
1165 mt7921_mutex_release(dev);
1166
1167 return err;
1168 }
1169
1170 static int
mt7921_stop_sched_scan(struct ieee80211_hw * hw,struct ieee80211_vif * vif)1171 mt7921_stop_sched_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
1172 {
1173 struct mt7921_dev *dev = mt7921_hw_dev(hw);
1174 struct mt76_phy *mphy = hw->priv;
1175 int err;
1176
1177 mt7921_mutex_acquire(dev);
1178 err = mt76_connac_mcu_sched_scan_enable(mphy, vif, false);
1179 mt7921_mutex_release(dev);
1180
1181 return err;
1182 }
1183
1184 static int
mt7921_set_antenna(struct ieee80211_hw * hw,u32 tx_ant,u32 rx_ant)1185 mt7921_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant)
1186 {
1187 struct mt7921_dev *dev = mt7921_hw_dev(hw);
1188 struct mt7921_phy *phy = mt7921_hw_phy(hw);
1189 int max_nss = hweight8(hw->wiphy->available_antennas_tx);
1190
1191 if (!tx_ant || tx_ant != rx_ant || ffs(tx_ant) > max_nss)
1192 return -EINVAL;
1193
1194 if ((BIT(hweight8(tx_ant)) - 1) != tx_ant)
1195 tx_ant = BIT(ffs(tx_ant) - 1) - 1;
1196
1197 mt7921_mutex_acquire(dev);
1198
1199 phy->mt76->antenna_mask = tx_ant;
1200 phy->mt76->chainmask = tx_ant;
1201
1202 mt76_set_stream_caps(phy->mt76, true);
1203 mt7921_set_stream_he_caps(phy);
1204
1205 mt7921_mutex_release(dev);
1206
1207 return 0;
1208 }
1209
mt7921_sta_statistics(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,struct station_info * sinfo)1210 static void mt7921_sta_statistics(struct ieee80211_hw *hw,
1211 struct ieee80211_vif *vif,
1212 struct ieee80211_sta *sta,
1213 struct station_info *sinfo)
1214 {
1215 struct mt7921_sta *msta = (struct mt7921_sta *)sta->drv_priv;
1216 struct rate_info *txrate = &msta->wcid.rate;
1217
1218 if (!txrate->legacy && !txrate->flags)
1219 return;
1220
1221 if (txrate->legacy) {
1222 sinfo->txrate.legacy = txrate->legacy;
1223 } else {
1224 sinfo->txrate.mcs = txrate->mcs;
1225 sinfo->txrate.nss = txrate->nss;
1226 sinfo->txrate.bw = txrate->bw;
1227 sinfo->txrate.he_gi = txrate->he_gi;
1228 sinfo->txrate.he_dcm = txrate->he_dcm;
1229 sinfo->txrate.he_ru_alloc = txrate->he_ru_alloc;
1230 }
1231 sinfo->txrate.flags = txrate->flags;
1232 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE);
1233 }
1234
1235 #ifdef CONFIG_PM
mt7921_suspend(struct ieee80211_hw * hw,struct cfg80211_wowlan * wowlan)1236 static int mt7921_suspend(struct ieee80211_hw *hw,
1237 struct cfg80211_wowlan *wowlan)
1238 {
1239 struct mt7921_dev *dev = mt7921_hw_dev(hw);
1240 struct mt7921_phy *phy = mt7921_hw_phy(hw);
1241 int err;
1242
1243 cancel_delayed_work_sync(&phy->scan_work);
1244 cancel_delayed_work_sync(&phy->mt76->mac_work);
1245
1246 cancel_delayed_work_sync(&dev->pm.ps_work);
1247 mt76_connac_free_pending_tx_skbs(&dev->pm, NULL);
1248
1249 mt7921_mutex_acquire(dev);
1250
1251 clear_bit(MT76_STATE_RUNNING, &phy->mt76->state);
1252
1253 set_bit(MT76_STATE_SUSPEND, &phy->mt76->state);
1254 ieee80211_iterate_active_interfaces(hw,
1255 IEEE80211_IFACE_ITER_RESUME_ALL,
1256 mt76_connac_mcu_set_suspend_iter,
1257 &dev->mphy);
1258
1259 err = mt76_connac_mcu_set_hif_suspend(&dev->mt76, true);
1260
1261 mt7921_mutex_release(dev);
1262
1263 return err;
1264 }
1265
mt7921_resume(struct ieee80211_hw * hw)1266 static int mt7921_resume(struct ieee80211_hw *hw)
1267 {
1268 struct mt7921_dev *dev = mt7921_hw_dev(hw);
1269 struct mt7921_phy *phy = mt7921_hw_phy(hw);
1270 int err;
1271
1272 mt7921_mutex_acquire(dev);
1273
1274 err = mt76_connac_mcu_set_hif_suspend(&dev->mt76, false);
1275 if (err < 0)
1276 goto out;
1277
1278 set_bit(MT76_STATE_RUNNING, &phy->mt76->state);
1279 clear_bit(MT76_STATE_SUSPEND, &phy->mt76->state);
1280 ieee80211_iterate_active_interfaces(hw,
1281 IEEE80211_IFACE_ITER_RESUME_ALL,
1282 mt76_connac_mcu_set_suspend_iter,
1283 &dev->mphy);
1284
1285 ieee80211_queue_delayed_work(hw, &phy->mt76->mac_work,
1286 MT7921_WATCHDOG_TIME);
1287 out:
1288
1289 mt7921_mutex_release(dev);
1290
1291 return err;
1292 }
1293
mt7921_set_wakeup(struct ieee80211_hw * hw,bool enabled)1294 static void mt7921_set_wakeup(struct ieee80211_hw *hw, bool enabled)
1295 {
1296 struct mt7921_dev *dev = mt7921_hw_dev(hw);
1297 struct mt76_dev *mdev = &dev->mt76;
1298
1299 device_set_wakeup_enable(mdev->dev, enabled);
1300 }
1301
mt7921_set_rekey_data(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct cfg80211_gtk_rekey_data * data)1302 static void mt7921_set_rekey_data(struct ieee80211_hw *hw,
1303 struct ieee80211_vif *vif,
1304 struct cfg80211_gtk_rekey_data *data)
1305 {
1306 struct mt7921_dev *dev = mt7921_hw_dev(hw);
1307
1308 mt7921_mutex_acquire(dev);
1309 mt76_connac_mcu_update_gtk_rekey(hw, vif, data);
1310 mt7921_mutex_release(dev);
1311 }
1312 #endif /* CONFIG_PM */
1313
mt7921_flush(struct ieee80211_hw * hw,struct ieee80211_vif * vif,u32 queues,bool drop)1314 static void mt7921_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1315 u32 queues, bool drop)
1316 {
1317 struct mt7921_dev *dev = mt7921_hw_dev(hw);
1318
1319 wait_event_timeout(dev->mt76.tx_wait, !mt76_has_tx_pending(&dev->mphy),
1320 HZ / 2);
1321 }
1322
mt7921_sta_set_decap_offload(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,bool enabled)1323 static void mt7921_sta_set_decap_offload(struct ieee80211_hw *hw,
1324 struct ieee80211_vif *vif,
1325 struct ieee80211_sta *sta,
1326 bool enabled)
1327 {
1328 struct mt7921_sta *msta = (struct mt7921_sta *)sta->drv_priv;
1329 struct mt7921_dev *dev = mt7921_hw_dev(hw);
1330
1331 if (enabled)
1332 set_bit(MT_WCID_FLAG_HDR_TRANS, &msta->wcid.flags);
1333 else
1334 clear_bit(MT_WCID_FLAG_HDR_TRANS, &msta->wcid.flags);
1335
1336 mt76_connac_mcu_sta_update_hdr_trans(&dev->mt76, vif, &msta->wcid,
1337 MCU_UNI_CMD_STA_REC_UPDATE);
1338 }
1339
mt7921_set_sar_specs(struct ieee80211_hw * hw,const struct cfg80211_sar_specs * sar)1340 static int mt7921_set_sar_specs(struct ieee80211_hw *hw,
1341 const struct cfg80211_sar_specs *sar)
1342 {
1343 const struct cfg80211_sar_capa *capa = hw->wiphy->sar_capa;
1344 struct mt7921_dev *dev = mt7921_hw_dev(hw);
1345 struct mt76_freq_range_power *data, *frp;
1346 struct mt76_phy *mphy = hw->priv;
1347 int err;
1348 u32 i;
1349
1350 if (sar->type != NL80211_SAR_TYPE_POWER || !sar->num_sub_specs)
1351 return -EINVAL;
1352
1353 mt7921_mutex_acquire(dev);
1354
1355 data = mphy->frp;
1356
1357 for (i = 0; i < sar->num_sub_specs; i++) {
1358 u32 index = sar->sub_specs[i].freq_range_index;
1359 /* SAR specifies power limitaton in 0.25dbm */
1360 s32 power = sar->sub_specs[i].power >> 1;
1361
1362 if (power > 127 || power < -127)
1363 power = 127;
1364
1365 frp = &data[index];
1366 frp->range = &capa->freq_ranges[index];
1367 frp->power = power;
1368 }
1369
1370 err = mt76_connac_mcu_set_rate_txpower(mphy);
1371
1372 mt7921_mutex_release(dev);
1373
1374 return err;
1375 }
1376
1377 const struct ieee80211_ops mt7921_ops = {
1378 .tx = mt7921_tx,
1379 .start = mt7921_start,
1380 .stop = mt7921_stop,
1381 .add_interface = mt7921_add_interface,
1382 .remove_interface = mt7921_remove_interface,
1383 .config = mt7921_config,
1384 .conf_tx = mt7921_conf_tx,
1385 .configure_filter = mt7921_configure_filter,
1386 .bss_info_changed = mt7921_bss_info_changed,
1387 .sta_state = mt7921_sta_state,
1388 .sta_pre_rcu_remove = mt76_sta_pre_rcu_remove,
1389 .set_key = mt7921_set_key,
1390 .sta_set_decap_offload = mt7921_sta_set_decap_offload,
1391 .ampdu_action = mt7921_ampdu_action,
1392 .set_rts_threshold = mt7921_set_rts_threshold,
1393 .wake_tx_queue = mt76_wake_tx_queue,
1394 .release_buffered_frames = mt76_release_buffered_frames,
1395 .get_txpower = mt76_get_txpower,
1396 .get_stats = mt7921_get_stats,
1397 .get_et_sset_count = mt7921_get_et_sset_count,
1398 .get_et_strings = mt7921_get_et_strings,
1399 .get_et_stats = mt7921_get_et_stats,
1400 .get_tsf = mt7921_get_tsf,
1401 .set_tsf = mt7921_set_tsf,
1402 .get_survey = mt76_get_survey,
1403 .get_antenna = mt76_get_antenna,
1404 .set_antenna = mt7921_set_antenna,
1405 .set_coverage_class = mt7921_set_coverage_class,
1406 .hw_scan = mt7921_hw_scan,
1407 .cancel_hw_scan = mt7921_cancel_hw_scan,
1408 .sta_statistics = mt7921_sta_statistics,
1409 .sched_scan_start = mt7921_start_sched_scan,
1410 .sched_scan_stop = mt7921_stop_sched_scan,
1411 CFG80211_TESTMODE_CMD(mt7921_testmode_cmd)
1412 CFG80211_TESTMODE_DUMP(mt7921_testmode_dump)
1413 #ifdef CONFIG_PM
1414 .suspend = mt7921_suspend,
1415 .resume = mt7921_resume,
1416 .set_wakeup = mt7921_set_wakeup,
1417 .set_rekey_data = mt7921_set_rekey_data,
1418 #endif /* CONFIG_PM */
1419 .flush = mt7921_flush,
1420 .set_sar_specs = mt7921_set_sar_specs,
1421 };
1422 EXPORT_SYMBOL_GPL(mt7921_ops);
1423
1424 MODULE_LICENSE("Dual BSD/GPL");
1425 MODULE_AUTHOR("Sean Wang <sean.wang@mediatek.com>");
1426