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 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, band); 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 } 187 188 void mt7921_set_stream_he_caps(struct mt792x_phy *phy) 189 { 190 struct ieee80211_sband_iftype_data *data; 191 struct ieee80211_supported_band *band; 192 int n; 193 194 if (phy->mt76->cap.has_2ghz) { 195 data = phy->iftype[NL80211_BAND_2GHZ]; 196 n = mt7921_init_he_caps(phy, NL80211_BAND_2GHZ, data); 197 198 band = &phy->mt76->sband_2g.sband; 199 _ieee80211_set_sband_iftype_data(band, data, n); 200 } 201 202 if (phy->mt76->cap.has_5ghz) { 203 data = phy->iftype[NL80211_BAND_5GHZ]; 204 n = mt7921_init_he_caps(phy, NL80211_BAND_5GHZ, data); 205 206 band = &phy->mt76->sband_5g.sband; 207 _ieee80211_set_sband_iftype_data(band, data, n); 208 209 if (phy->mt76->cap.has_6ghz) { 210 data = phy->iftype[NL80211_BAND_6GHZ]; 211 n = mt7921_init_he_caps(phy, NL80211_BAND_6GHZ, data); 212 213 band = &phy->mt76->sband_6g.sband; 214 _ieee80211_set_sband_iftype_data(band, data, n); 215 } 216 } 217 } 218 219 int __mt7921_start(struct mt792x_phy *phy) 220 { 221 struct mt76_phy *mphy = phy->mt76; 222 int err; 223 224 err = mt76_connac_mcu_set_mac_enable(mphy->dev, 0, true, false); 225 if (err) 226 return err; 227 228 err = mt76_connac_mcu_set_channel_domain(mphy); 229 if (err) 230 return err; 231 232 err = mt7921_mcu_set_chan_info(phy, MCU_EXT_CMD(SET_RX_PATH)); 233 if (err) 234 return err; 235 236 err = mt7921_set_tx_sar_pwr(mphy->hw, NULL); 237 if (err) 238 return err; 239 240 mt792x_mac_reset_counters(phy); 241 set_bit(MT76_STATE_RUNNING, &mphy->state); 242 243 ieee80211_queue_delayed_work(mphy->hw, &mphy->mac_work, 244 MT792x_WATCHDOG_TIME); 245 if (mt76_is_mmio(mphy->dev)) { 246 err = mt7921_mcu_radio_led_ctrl(phy->dev, EXT_CMD_RADIO_LED_CTRL_ENABLE); 247 if (err) 248 return err; 249 250 err = mt7921_mcu_radio_led_ctrl(phy->dev, EXT_CMD_RADIO_ON_LED); 251 if (err) 252 return err; 253 } 254 255 if (phy->chip_cap & MT792x_CHIP_CAP_WF_RF_PIN_CTRL_EVT_EN) { 256 mt7921_mcu_wf_rf_pin_ctrl(phy, WF_RF_PIN_INIT); 257 wiphy_rfkill_start_polling(mphy->hw->wiphy); 258 } 259 260 return 0; 261 } 262 EXPORT_SYMBOL_GPL(__mt7921_start); 263 264 static int mt7921_start(struct ieee80211_hw *hw) 265 { 266 struct mt792x_phy *phy = mt792x_hw_phy(hw); 267 int err; 268 269 mt792x_mutex_acquire(phy->dev); 270 err = __mt7921_start(phy); 271 mt792x_mutex_release(phy->dev); 272 273 return err; 274 } 275 276 static void mt7921_stop(struct ieee80211_hw *hw, bool suspend) 277 { 278 struct mt792x_dev *dev = mt792x_hw_dev(hw); 279 int err = 0; 280 281 if (mt76_is_mmio(&dev->mt76)) { 282 mt792x_mutex_acquire(dev); 283 err = mt7921_mcu_radio_led_ctrl(dev, EXT_CMD_RADIO_OFF_LED); 284 mt792x_mutex_release(dev); 285 if (err) 286 return; 287 } 288 289 mt792x_stop(hw, false); 290 } 291 292 static int 293 mt7921_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) 294 { 295 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 296 struct mt792x_dev *dev = mt792x_hw_dev(hw); 297 struct mt792x_phy *phy = mt792x_hw_phy(hw); 298 struct mt76_txq *mtxq; 299 int idx, ret = 0; 300 301 mt792x_mutex_acquire(dev); 302 303 mvif->bss_conf.mt76.idx = __ffs64(~dev->mt76.vif_mask); 304 if (mvif->bss_conf.mt76.idx >= MT792x_MAX_INTERFACES) { 305 ret = -ENOSPC; 306 goto out; 307 } 308 309 mvif->bss_conf.mt76.omac_idx = mvif->bss_conf.mt76.idx; 310 mvif->phy = phy; 311 mvif->bss_conf.vif = mvif; 312 mvif->bss_conf.mt76.band_idx = 0; 313 mvif->bss_conf.mt76.wmm_idx = mvif->bss_conf.mt76.idx % MT76_CONNAC_MAX_WMM_SETS; 314 315 ret = mt76_connac_mcu_uni_add_dev(&dev->mphy, &vif->bss_conf, 316 &mvif->bss_conf.mt76, 317 &mvif->sta.deflink.wcid, true); 318 if (ret) 319 goto out; 320 321 dev->mt76.vif_mask |= BIT_ULL(mvif->bss_conf.mt76.idx); 322 phy->omac_mask |= BIT_ULL(mvif->bss_conf.mt76.omac_idx); 323 324 idx = MT792x_WTBL_RESERVED - mvif->bss_conf.mt76.idx; 325 326 INIT_LIST_HEAD(&mvif->sta.deflink.wcid.poll_list); 327 mvif->sta.deflink.wcid.idx = idx; 328 mvif->sta.deflink.wcid.tx_info |= MT_WCID_TX_INFO_SET; 329 mt76_wcid_init(&mvif->sta.deflink.wcid, mvif->bss_conf.mt76.band_idx); 330 331 mt7921_mac_wtbl_update(dev, idx, 332 MT_WTBL_UPDATE_ADM_COUNT_CLEAR); 333 334 ewma_rssi_init(&mvif->bss_conf.rssi); 335 336 rcu_assign_pointer(dev->mt76.wcid[idx], &mvif->sta.deflink.wcid); 337 if (vif->txq) { 338 mtxq = (struct mt76_txq *)vif->txq->drv_priv; 339 mtxq->wcid = idx; 340 } 341 342 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER; 343 if (phy->chip_cap & MT792x_CHIP_CAP_RSSI_NOTIFY_EVT_EN) 344 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_CQM_RSSI; 345 346 INIT_WORK(&mvif->csa_work, mt7921_csa_work); 347 timer_setup(&mvif->csa_timer, mt792x_csa_timer, 0); 348 out: 349 mt792x_mutex_release(dev); 350 351 return ret; 352 } 353 354 static void mt7921_roc_iter(void *priv, u8 *mac, 355 struct ieee80211_vif *vif) 356 { 357 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 358 struct mt792x_phy *phy = priv; 359 360 mt7921_mcu_abort_roc(phy, mvif, phy->roc_token_id); 361 } 362 363 void mt7921_roc_abort_sync(struct mt792x_dev *dev) 364 { 365 struct mt792x_phy *phy = &dev->phy; 366 367 timer_delete_sync(&phy->roc_timer); 368 cancel_work_sync(&phy->roc_work); 369 if (test_and_clear_bit(MT76_STATE_ROC, &phy->mt76->state)) 370 ieee80211_iterate_interfaces(mt76_hw(dev), 371 IEEE80211_IFACE_ITER_RESUME_ALL, 372 mt7921_roc_iter, (void *)phy); 373 } 374 EXPORT_SYMBOL_GPL(mt7921_roc_abort_sync); 375 376 void mt7921_roc_work(struct work_struct *work) 377 { 378 struct mt792x_phy *phy; 379 380 phy = (struct mt792x_phy *)container_of(work, struct mt792x_phy, 381 roc_work); 382 383 if (!test_and_clear_bit(MT76_STATE_ROC, &phy->mt76->state)) 384 return; 385 386 mt792x_mutex_acquire(phy->dev); 387 ieee80211_iterate_active_interfaces(phy->mt76->hw, 388 IEEE80211_IFACE_ITER_RESUME_ALL, 389 mt7921_roc_iter, phy); 390 mt792x_mutex_release(phy->dev); 391 ieee80211_remain_on_channel_expired(phy->mt76->hw); 392 } 393 394 static int mt7921_abort_roc(struct mt792x_phy *phy, struct mt792x_vif *vif) 395 { 396 int err = 0; 397 398 timer_delete_sync(&phy->roc_timer); 399 cancel_work_sync(&phy->roc_work); 400 401 mt792x_mutex_acquire(phy->dev); 402 if (test_and_clear_bit(MT76_STATE_ROC, &phy->mt76->state)) 403 err = mt7921_mcu_abort_roc(phy, vif, phy->roc_token_id); 404 mt792x_mutex_release(phy->dev); 405 406 return err; 407 } 408 409 static int mt7921_set_roc(struct mt792x_phy *phy, 410 struct mt792x_vif *vif, 411 struct ieee80211_channel *chan, 412 int duration, 413 enum mt7921_roc_req type) 414 { 415 int err; 416 417 if (test_and_set_bit(MT76_STATE_ROC, &phy->mt76->state)) 418 return -EBUSY; 419 420 phy->roc_grant = false; 421 422 err = mt7921_mcu_set_roc(phy, vif, chan, duration, type, 423 ++phy->roc_token_id); 424 if (err < 0) { 425 clear_bit(MT76_STATE_ROC, &phy->mt76->state); 426 goto out; 427 } 428 429 if (!wait_event_timeout(phy->roc_wait, phy->roc_grant, HZ)) { 430 mt7921_mcu_abort_roc(phy, vif, phy->roc_token_id); 431 clear_bit(MT76_STATE_ROC, &phy->mt76->state); 432 err = -ETIMEDOUT; 433 } 434 435 out: 436 return err; 437 } 438 439 static int mt7921_remain_on_channel(struct ieee80211_hw *hw, 440 struct ieee80211_vif *vif, 441 struct ieee80211_channel *chan, 442 int duration, 443 enum ieee80211_roc_type type) 444 { 445 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 446 struct mt792x_phy *phy = mt792x_hw_phy(hw); 447 int err; 448 449 mt792x_mutex_acquire(phy->dev); 450 err = mt7921_set_roc(phy, mvif, chan, duration, MT7921_ROC_REQ_ROC); 451 mt792x_mutex_release(phy->dev); 452 453 return err; 454 } 455 456 static int mt7921_cancel_remain_on_channel(struct ieee80211_hw *hw, 457 struct ieee80211_vif *vif) 458 { 459 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 460 struct mt792x_phy *phy = mt792x_hw_phy(hw); 461 462 return mt7921_abort_roc(phy, mvif); 463 } 464 465 int mt7921_set_channel(struct mt76_phy *mphy) 466 { 467 struct mt792x_phy *phy = mphy->priv; 468 struct mt792x_dev *dev = phy->dev; 469 int ret; 470 471 mt76_connac_pm_wake(mphy, &dev->pm); 472 ret = mt7921_mcu_set_chan_info(phy, MCU_EXT_CMD(CHANNEL_SWITCH)); 473 if (ret) 474 goto out; 475 476 mt792x_mac_set_timeing(phy); 477 mt792x_mac_reset_counters(phy); 478 phy->noise = 0; 479 480 out: 481 mt76_connac_power_save_sched(mphy, &dev->pm); 482 483 ieee80211_queue_delayed_work(mphy->hw, &mphy->mac_work, 484 MT792x_WATCHDOG_TIME); 485 486 return ret; 487 } 488 EXPORT_SYMBOL_GPL(mt7921_set_channel); 489 490 static int mt7921_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, 491 struct ieee80211_vif *vif, struct ieee80211_sta *sta, 492 struct ieee80211_key_conf *key) 493 { 494 struct mt792x_dev *dev = mt792x_hw_dev(hw); 495 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 496 struct mt792x_sta *msta = sta ? (struct mt792x_sta *)sta->drv_priv : 497 &mvif->sta; 498 struct mt76_wcid *wcid = &msta->deflink.wcid; 499 u8 *wcid_keyidx = &wcid->hw_key_idx; 500 int idx = key->keyidx, err = 0; 501 502 /* The hardware does not support per-STA RX GTK, fallback 503 * to software mode for these. 504 */ 505 if ((vif->type == NL80211_IFTYPE_ADHOC || 506 vif->type == NL80211_IFTYPE_MESH_POINT) && 507 (key->cipher == WLAN_CIPHER_SUITE_TKIP || 508 key->cipher == WLAN_CIPHER_SUITE_CCMP) && 509 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) 510 return -EOPNOTSUPP; 511 512 /* fall back to sw encryption for unsupported ciphers */ 513 switch (key->cipher) { 514 case WLAN_CIPHER_SUITE_AES_CMAC: 515 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIE; 516 wcid_keyidx = &wcid->hw_key_idx2; 517 break; 518 case WLAN_CIPHER_SUITE_WEP40: 519 case WLAN_CIPHER_SUITE_WEP104: 520 if (!mvif->wep_sta) 521 return -EOPNOTSUPP; 522 break; 523 case WLAN_CIPHER_SUITE_TKIP: 524 case WLAN_CIPHER_SUITE_CCMP: 525 case WLAN_CIPHER_SUITE_CCMP_256: 526 case WLAN_CIPHER_SUITE_GCMP: 527 case WLAN_CIPHER_SUITE_GCMP_256: 528 case WLAN_CIPHER_SUITE_SMS4: 529 break; 530 default: 531 return -EOPNOTSUPP; 532 } 533 534 mt792x_mutex_acquire(dev); 535 536 if (cmd == SET_KEY) { 537 *wcid_keyidx = idx; 538 } else { 539 if (idx == *wcid_keyidx) 540 *wcid_keyidx = -1; 541 542 /* For security issue we don't trigger the key deletion when 543 * reassociating. But we should trigger the deletion process 544 * to avoid using incorrect cipher after disconnection, 545 */ 546 if (vif->type != NL80211_IFTYPE_STATION || vif->cfg.assoc) 547 goto out; 548 } 549 550 mt76_wcid_key_setup(&dev->mt76, wcid, key); 551 err = mt76_connac_mcu_add_key(&dev->mt76, vif, &msta->deflink.bip, 552 key, MCU_UNI_CMD(STA_REC_UPDATE), 553 &msta->deflink.wcid, cmd); 554 if (err) 555 goto out; 556 557 if (key->cipher == WLAN_CIPHER_SUITE_WEP104 || 558 key->cipher == WLAN_CIPHER_SUITE_WEP40) 559 err = mt76_connac_mcu_add_key(&dev->mt76, vif, 560 &mvif->wep_sta->deflink.bip, 561 key, MCU_UNI_CMD(STA_REC_UPDATE), 562 &mvif->wep_sta->deflink.wcid, cmd); 563 out: 564 mt792x_mutex_release(dev); 565 566 return err; 567 } 568 569 static void 570 mt7921_pm_interface_iter(void *priv, u8 *mac, struct ieee80211_vif *vif) 571 { 572 struct mt792x_dev *dev = priv; 573 struct ieee80211_hw *hw = mt76_hw(dev); 574 bool pm_enable = dev->pm.enable; 575 int err; 576 577 err = mt7921_mcu_set_beacon_filter(dev, vif, pm_enable); 578 if (err < 0) 579 return; 580 581 if (pm_enable) { 582 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER; 583 ieee80211_hw_set(hw, CONNECTION_MONITOR); 584 } else { 585 vif->driver_flags &= ~IEEE80211_VIF_BEACON_FILTER; 586 __clear_bit(IEEE80211_HW_CONNECTION_MONITOR, hw->flags); 587 } 588 } 589 590 static void 591 mt7921_sniffer_interface_iter(void *priv, u8 *mac, struct ieee80211_vif *vif) 592 { 593 struct mt792x_dev *dev = priv; 594 struct ieee80211_hw *hw = mt76_hw(dev); 595 struct mt76_connac_pm *pm = &dev->pm; 596 bool monitor = !!(hw->conf.flags & IEEE80211_CONF_MONITOR); 597 598 mt7921_mcu_set_sniffer(dev, vif, monitor); 599 pm->enable = pm->enable_user && !monitor; 600 pm->ds_enable = pm->ds_enable_user && !monitor; 601 602 mt76_connac_mcu_set_deep_sleep(&dev->mt76, pm->ds_enable); 603 604 if (monitor) 605 mt7921_mcu_set_beacon_filter(dev, vif, false); 606 } 607 608 void mt7921_set_runtime_pm(struct mt792x_dev *dev) 609 { 610 struct ieee80211_hw *hw = mt76_hw(dev); 611 struct mt76_connac_pm *pm = &dev->pm; 612 bool monitor = !!(hw->conf.flags & IEEE80211_CONF_MONITOR); 613 614 pm->enable = pm->enable_user && !monitor; 615 ieee80211_iterate_active_interfaces(hw, 616 IEEE80211_IFACE_ITER_RESUME_ALL, 617 mt7921_pm_interface_iter, dev); 618 pm->ds_enable = pm->ds_enable_user && !monitor; 619 mt76_connac_mcu_set_deep_sleep(&dev->mt76, pm->ds_enable); 620 } 621 622 static int mt7921_config(struct ieee80211_hw *hw, u32 changed) 623 { 624 struct mt792x_dev *dev = mt792x_hw_dev(hw); 625 struct mt792x_phy *phy = mt792x_hw_phy(hw); 626 int ret = 0; 627 628 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { 629 ret = mt76_update_channel(phy->mt76); 630 if (ret) 631 return ret; 632 } 633 634 mt792x_mutex_acquire(dev); 635 636 if (changed & IEEE80211_CONF_CHANGE_POWER) { 637 ret = mt7921_set_tx_sar_pwr(hw, NULL); 638 if (ret) 639 goto out; 640 } 641 642 if (changed & IEEE80211_CONF_CHANGE_MONITOR) { 643 ieee80211_iterate_active_interfaces(hw, 644 IEEE80211_IFACE_ITER_RESUME_ALL, 645 mt7921_sniffer_interface_iter, dev); 646 } 647 648 out: 649 mt792x_mutex_release(dev); 650 651 return ret; 652 } 653 654 static void mt7921_configure_filter(struct ieee80211_hw *hw, 655 unsigned int changed_flags, 656 unsigned int *total_flags, 657 u64 multicast) 658 { 659 #define MT7921_FILTER_FCSFAIL BIT(2) 660 #define MT7921_FILTER_CONTROL BIT(5) 661 #define MT7921_FILTER_OTHER_BSS BIT(6) 662 #define MT7921_FILTER_ENABLE BIT(31) 663 664 struct mt792x_dev *dev = mt792x_hw_dev(hw); 665 u32 flags = MT7921_FILTER_ENABLE; 666 667 #define MT7921_FILTER(_fif, _type) do { \ 668 if (*total_flags & (_fif)) \ 669 flags |= MT7921_FILTER_##_type; \ 670 } while (0) 671 672 MT7921_FILTER(FIF_FCSFAIL, FCSFAIL); 673 MT7921_FILTER(FIF_CONTROL, CONTROL); 674 MT7921_FILTER(FIF_OTHER_BSS, OTHER_BSS); 675 676 mt792x_mutex_acquire(dev); 677 mt7921_mcu_set_rxfilter(dev, flags, 0, 0); 678 mt792x_mutex_release(dev); 679 680 *total_flags &= (FIF_OTHER_BSS | FIF_FCSFAIL | FIF_CONTROL); 681 } 682 683 static void mt7921_bss_info_changed(struct ieee80211_hw *hw, 684 struct ieee80211_vif *vif, 685 struct ieee80211_bss_conf *info, 686 u64 changed) 687 { 688 struct mt792x_phy *phy = mt792x_hw_phy(hw); 689 struct mt792x_dev *dev = mt792x_hw_dev(hw); 690 691 mt792x_mutex_acquire(dev); 692 693 if (changed & BSS_CHANGED_ERP_SLOT) { 694 int slottime = info->use_short_slot ? 9 : 20; 695 696 if (slottime != phy->slottime) { 697 phy->slottime = slottime; 698 mt792x_mac_set_timeing(phy); 699 } 700 } 701 702 if (changed & (BSS_CHANGED_BEACON | 703 BSS_CHANGED_BEACON_ENABLED)) 704 mt7921_mcu_uni_add_beacon_offload(dev, hw, vif, 705 info->enable_beacon); 706 707 /* ensure that enable txcmd_mode after bss_info */ 708 if (changed & (BSS_CHANGED_QOS | BSS_CHANGED_BEACON_ENABLED)) 709 mt7921_mcu_set_tx(dev, vif); 710 711 if (changed & BSS_CHANGED_PS) 712 mt7921_mcu_uni_bss_ps(dev, vif); 713 714 if (changed & BSS_CHANGED_CQM) 715 mt7921_mcu_set_rssimonitor(dev, vif); 716 717 if (changed & BSS_CHANGED_ASSOC) { 718 mt7921_mcu_sta_update(dev, NULL, vif, true, 719 MT76_STA_INFO_STATE_ASSOC); 720 mt7921_mcu_set_beacon_filter(dev, vif, vif->cfg.assoc); 721 } 722 723 if (changed & BSS_CHANGED_ARP_FILTER) { 724 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 725 726 mt76_connac_mcu_update_arp_filter(&dev->mt76, &mvif->bss_conf.mt76, 727 info); 728 } 729 730 mt792x_mutex_release(dev); 731 } 732 733 static void 734 mt7921_calc_vif_num(void *priv, u8 *mac, struct ieee80211_vif *vif) 735 { 736 u32 *num = priv; 737 738 if (!priv) 739 return; 740 741 switch (vif->type) { 742 case NL80211_IFTYPE_STATION: 743 case NL80211_IFTYPE_P2P_CLIENT: 744 case NL80211_IFTYPE_AP: 745 case NL80211_IFTYPE_P2P_GO: 746 *num += 1; 747 break; 748 default: 749 break; 750 } 751 } 752 753 static void 754 mt7921_regd_set_6ghz_power_type(struct ieee80211_vif *vif, bool is_add) 755 { 756 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 757 struct mt792x_phy *phy = mvif->phy; 758 struct mt792x_dev *dev = phy->dev; 759 u32 valid_vif_num = 0; 760 761 ieee80211_iterate_active_interfaces(mt76_hw(dev), 762 IEEE80211_IFACE_ITER_RESUME_ALL, 763 mt7921_calc_vif_num, &valid_vif_num); 764 765 if (valid_vif_num > 1) { 766 phy->power_type = MT_AP_DEFAULT; 767 goto out; 768 } 769 770 if (!is_add) 771 vif->bss_conf.power_type = IEEE80211_REG_UNSET_AP; 772 773 switch (vif->bss_conf.power_type) { 774 case IEEE80211_REG_SP_AP: 775 phy->power_type = MT_AP_SP; 776 break; 777 case IEEE80211_REG_VLP_AP: 778 phy->power_type = MT_AP_VLP; 779 break; 780 case IEEE80211_REG_LPI_AP: 781 phy->power_type = MT_AP_LPI; 782 break; 783 case IEEE80211_REG_UNSET_AP: 784 phy->power_type = MT_AP_UNSET; 785 break; 786 default: 787 phy->power_type = MT_AP_DEFAULT; 788 break; 789 } 790 791 out: 792 mt7921_mcu_set_clc(dev, dev->mt76.alpha2, dev->country_ie_env); 793 } 794 795 int mt7921_mac_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif, 796 struct ieee80211_sta *sta) 797 { 798 struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76); 799 struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv; 800 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 801 int ret, idx; 802 803 idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT792x_WTBL_STA - 1); 804 if (idx < 0) 805 return -ENOSPC; 806 807 INIT_LIST_HEAD(&msta->deflink.wcid.poll_list); 808 msta->vif = mvif; 809 msta->deflink.wcid.sta = 1; 810 msta->deflink.wcid.idx = idx; 811 msta->deflink.wcid.phy_idx = mvif->bss_conf.mt76.band_idx; 812 msta->deflink.wcid.tx_info |= MT_WCID_TX_INFO_SET; 813 msta->deflink.last_txs = jiffies; 814 msta->deflink.sta = msta; 815 816 ret = mt76_connac_pm_wake(&dev->mphy, &dev->pm); 817 if (ret) 818 return ret; 819 820 if (vif->type == NL80211_IFTYPE_STATION) 821 mvif->wep_sta = msta; 822 823 mt7921_mac_wtbl_update(dev, idx, 824 MT_WTBL_UPDATE_ADM_COUNT_CLEAR); 825 826 ret = mt7921_mcu_sta_update(dev, sta, vif, true, 827 MT76_STA_INFO_STATE_NONE); 828 if (ret) 829 return ret; 830 831 mt7921_regd_set_6ghz_power_type(vif, true); 832 833 mt76_connac_power_save_sched(&dev->mphy, &dev->pm); 834 835 return 0; 836 } 837 EXPORT_SYMBOL_GPL(mt7921_mac_sta_add); 838 839 int mt7921_mac_sta_event(struct mt76_dev *mdev, struct ieee80211_vif *vif, 840 struct ieee80211_sta *sta, enum mt76_sta_event ev) 841 { 842 struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76); 843 struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv; 844 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 845 846 if (ev != MT76_STA_EVENT_ASSOC) 847 return 0; 848 849 mt792x_mutex_acquire(dev); 850 851 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 852 mt76_connac_mcu_uni_add_bss(&dev->mphy, vif, &mvif->sta.deflink.wcid, 853 true, mvif->bss_conf.mt76.ctx); 854 855 ewma_avg_signal_init(&msta->deflink.avg_ack_signal); 856 857 mt7921_mac_wtbl_update(dev, msta->deflink.wcid.idx, 858 MT_WTBL_UPDATE_ADM_COUNT_CLEAR); 859 memset(msta->deflink.airtime_ac, 0, sizeof(msta->deflink.airtime_ac)); 860 861 mt7921_mcu_sta_update(dev, sta, vif, true, MT76_STA_INFO_STATE_ASSOC); 862 863 mt792x_mutex_release(dev); 864 865 return 0; 866 } 867 EXPORT_SYMBOL_GPL(mt7921_mac_sta_event); 868 869 void mt7921_mac_sta_remove(struct mt76_dev *mdev, struct ieee80211_vif *vif, 870 struct ieee80211_sta *sta) 871 { 872 struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76); 873 struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv; 874 875 mt7921_roc_abort_sync(dev); 876 mt76_connac_free_pending_tx_skbs(&dev->pm, &msta->deflink.wcid); 877 mt76_connac_pm_wake(&dev->mphy, &dev->pm); 878 879 mt7921_mcu_sta_update(dev, sta, vif, false, MT76_STA_INFO_STATE_NONE); 880 mt7921_mac_wtbl_update(dev, msta->deflink.wcid.idx, 881 MT_WTBL_UPDATE_ADM_COUNT_CLEAR); 882 883 if (vif->type == NL80211_IFTYPE_STATION) { 884 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 885 886 mvif->wep_sta = NULL; 887 ewma_rssi_init(&mvif->bss_conf.rssi); 888 if (!sta->tdls) 889 mt76_connac_mcu_uni_add_bss(&dev->mphy, vif, 890 &mvif->sta.deflink.wcid, false, 891 mvif->bss_conf.mt76.ctx); 892 } 893 894 spin_lock_bh(&dev->mt76.sta_poll_lock); 895 if (!list_empty(&msta->deflink.wcid.poll_list)) 896 list_del_init(&msta->deflink.wcid.poll_list); 897 spin_unlock_bh(&dev->mt76.sta_poll_lock); 898 899 mt7921_regd_set_6ghz_power_type(vif, false); 900 901 mt76_connac_power_save_sched(&dev->mphy, &dev->pm); 902 } 903 EXPORT_SYMBOL_GPL(mt7921_mac_sta_remove); 904 905 static int mt7921_set_rts_threshold(struct ieee80211_hw *hw, u32 val) 906 { 907 struct mt792x_dev *dev = mt792x_hw_dev(hw); 908 909 mt792x_mutex_acquire(dev); 910 mt76_connac_mcu_set_rts_thresh(&dev->mt76, val, 0); 911 mt792x_mutex_release(dev); 912 913 return 0; 914 } 915 916 static int 917 mt7921_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 918 struct ieee80211_ampdu_params *params) 919 { 920 enum ieee80211_ampdu_mlme_action action = params->action; 921 struct mt792x_dev *dev = mt792x_hw_dev(hw); 922 struct ieee80211_sta *sta = params->sta; 923 struct ieee80211_txq *txq = sta->txq[params->tid]; 924 struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv; 925 u16 tid = params->tid; 926 u16 ssn = params->ssn; 927 struct mt76_txq *mtxq; 928 int ret = 0; 929 930 if (!txq) 931 return -EINVAL; 932 933 mtxq = (struct mt76_txq *)txq->drv_priv; 934 935 mt792x_mutex_acquire(dev); 936 switch (action) { 937 case IEEE80211_AMPDU_RX_START: 938 mt76_rx_aggr_start(&dev->mt76, &msta->deflink.wcid, tid, ssn, 939 params->buf_size); 940 mt7921_mcu_uni_rx_ba(dev, params, true); 941 break; 942 case IEEE80211_AMPDU_RX_STOP: 943 mt76_rx_aggr_stop(&dev->mt76, &msta->deflink.wcid, tid); 944 mt7921_mcu_uni_rx_ba(dev, params, false); 945 break; 946 case IEEE80211_AMPDU_TX_OPERATIONAL: 947 mtxq->aggr = true; 948 mtxq->send_bar = false; 949 mt7921_mcu_uni_tx_ba(dev, params, true); 950 break; 951 case IEEE80211_AMPDU_TX_STOP_FLUSH: 952 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 953 mtxq->aggr = false; 954 clear_bit(tid, &msta->deflink.wcid.ampdu_state); 955 mt7921_mcu_uni_tx_ba(dev, params, false); 956 break; 957 case IEEE80211_AMPDU_TX_START: 958 set_bit(tid, &msta->deflink.wcid.ampdu_state); 959 ret = IEEE80211_AMPDU_TX_START_IMMEDIATE; 960 break; 961 case IEEE80211_AMPDU_TX_STOP_CONT: 962 mtxq->aggr = false; 963 clear_bit(tid, &msta->deflink.wcid.ampdu_state); 964 mt7921_mcu_uni_tx_ba(dev, params, false); 965 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 966 break; 967 } 968 mt792x_mutex_release(dev); 969 970 return ret; 971 } 972 973 static int mt7921_sta_state(struct ieee80211_hw *hw, 974 struct ieee80211_vif *vif, 975 struct ieee80211_sta *sta, 976 enum ieee80211_sta_state old_state, 977 enum ieee80211_sta_state new_state) 978 { 979 struct mt792x_dev *dev = mt792x_hw_dev(hw); 980 981 if (dev->pm.ds_enable) { 982 mt792x_mutex_acquire(dev); 983 mt76_connac_sta_state_dp(&dev->mt76, old_state, new_state); 984 mt792x_mutex_release(dev); 985 } 986 987 return mt76_sta_state(hw, vif, sta, old_state, new_state); 988 } 989 990 void mt7921_scan_work(struct work_struct *work) 991 { 992 struct mt792x_phy *phy; 993 994 phy = (struct mt792x_phy *)container_of(work, struct mt792x_phy, 995 scan_work.work); 996 997 while (true) { 998 struct mt76_connac2_mcu_rxd *rxd; 999 struct sk_buff *skb; 1000 1001 spin_lock_bh(&phy->dev->mt76.lock); 1002 skb = __skb_dequeue(&phy->scan_event_list); 1003 spin_unlock_bh(&phy->dev->mt76.lock); 1004 1005 if (!skb) 1006 break; 1007 1008 rxd = (struct mt76_connac2_mcu_rxd *)skb->data; 1009 if (rxd->eid == MCU_EVENT_SCHED_SCAN_DONE) { 1010 ieee80211_sched_scan_results(phy->mt76->hw); 1011 } else if (test_and_clear_bit(MT76_HW_SCANNING, 1012 &phy->mt76->state)) { 1013 struct cfg80211_scan_info info = { 1014 .aborted = false, 1015 }; 1016 1017 ieee80211_scan_completed(phy->mt76->hw, &info); 1018 } 1019 dev_kfree_skb(skb); 1020 } 1021 } 1022 1023 static int 1024 mt7921_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 1025 struct ieee80211_scan_request *req) 1026 { 1027 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1028 struct mt76_phy *mphy = hw->priv; 1029 int err; 1030 1031 mt792x_mutex_acquire(dev); 1032 err = mt76_connac_mcu_hw_scan(mphy, vif, req); 1033 mt792x_mutex_release(dev); 1034 1035 return err; 1036 } 1037 1038 static void 1039 mt7921_cancel_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif) 1040 { 1041 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1042 struct mt76_phy *mphy = hw->priv; 1043 1044 mt792x_mutex_acquire(dev); 1045 mt76_connac_mcu_cancel_hw_scan(mphy, vif); 1046 mt792x_mutex_release(dev); 1047 } 1048 1049 static int 1050 mt7921_start_sched_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 1051 struct cfg80211_sched_scan_request *req, 1052 struct ieee80211_scan_ies *ies) 1053 { 1054 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1055 struct mt76_phy *mphy = hw->priv; 1056 int err; 1057 1058 mt792x_mutex_acquire(dev); 1059 1060 err = mt76_connac_mcu_sched_scan_req(mphy, vif, req); 1061 if (err < 0) 1062 goto out; 1063 1064 err = mt76_connac_mcu_sched_scan_enable(mphy, vif, true); 1065 out: 1066 mt792x_mutex_release(dev); 1067 1068 return err; 1069 } 1070 1071 static int 1072 mt7921_stop_sched_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif) 1073 { 1074 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1075 struct mt76_phy *mphy = hw->priv; 1076 int err; 1077 1078 mt792x_mutex_acquire(dev); 1079 err = mt76_connac_mcu_sched_scan_enable(mphy, vif, false); 1080 mt792x_mutex_release(dev); 1081 1082 return err; 1083 } 1084 1085 static int 1086 mt7921_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant) 1087 { 1088 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1089 struct mt792x_phy *phy = mt792x_hw_phy(hw); 1090 int max_nss = hweight8(hw->wiphy->available_antennas_tx); 1091 1092 if (!tx_ant || tx_ant != rx_ant || ffs(tx_ant) > max_nss) 1093 return -EINVAL; 1094 1095 if ((BIT(hweight8(tx_ant)) - 1) != tx_ant) 1096 return -EINVAL; 1097 1098 mt792x_mutex_acquire(dev); 1099 1100 phy->mt76->antenna_mask = tx_ant; 1101 phy->mt76->chainmask = tx_ant; 1102 1103 mt76_set_stream_caps(phy->mt76, true); 1104 mt7921_set_stream_he_caps(phy); 1105 1106 mt792x_mutex_release(dev); 1107 1108 return 0; 1109 } 1110 1111 #ifdef CONFIG_PM 1112 static int mt7921_suspend(struct ieee80211_hw *hw, 1113 struct cfg80211_wowlan *wowlan) 1114 { 1115 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1116 struct mt792x_phy *phy = mt792x_hw_phy(hw); 1117 1118 cancel_delayed_work_sync(&phy->scan_work); 1119 cancel_delayed_work_sync(&phy->mt76->mac_work); 1120 1121 cancel_delayed_work_sync(&dev->pm.ps_work); 1122 mt76_connac_free_pending_tx_skbs(&dev->pm, NULL); 1123 1124 mt792x_mutex_acquire(dev); 1125 1126 clear_bit(MT76_STATE_RUNNING, &phy->mt76->state); 1127 ieee80211_iterate_active_interfaces(hw, 1128 IEEE80211_IFACE_ITER_RESUME_ALL, 1129 mt7921_mcu_set_suspend_iter, 1130 &dev->mphy); 1131 1132 mt792x_mutex_release(dev); 1133 1134 return 0; 1135 } 1136 1137 static int mt7921_resume(struct ieee80211_hw *hw) 1138 { 1139 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1140 struct mt792x_phy *phy = mt792x_hw_phy(hw); 1141 1142 mt792x_mutex_acquire(dev); 1143 1144 set_bit(MT76_STATE_RUNNING, &phy->mt76->state); 1145 ieee80211_iterate_active_interfaces(hw, 1146 IEEE80211_IFACE_ITER_RESUME_ALL, 1147 mt76_connac_mcu_set_suspend_iter, 1148 &dev->mphy); 1149 1150 ieee80211_queue_delayed_work(hw, &phy->mt76->mac_work, 1151 MT792x_WATCHDOG_TIME); 1152 1153 mt792x_mutex_release(dev); 1154 1155 return 0; 1156 } 1157 1158 static void mt7921_set_rekey_data(struct ieee80211_hw *hw, 1159 struct ieee80211_vif *vif, 1160 struct cfg80211_gtk_rekey_data *data) 1161 { 1162 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1163 1164 mt792x_mutex_acquire(dev); 1165 mt76_connac_mcu_update_gtk_rekey(hw, vif, data); 1166 mt792x_mutex_release(dev); 1167 } 1168 #endif /* CONFIG_PM */ 1169 1170 static void mt7921_sta_set_decap_offload(struct ieee80211_hw *hw, 1171 struct ieee80211_vif *vif, 1172 struct ieee80211_sta *sta, 1173 bool enabled) 1174 { 1175 struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv; 1176 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1177 1178 mt792x_mutex_acquire(dev); 1179 1180 if (enabled) 1181 set_bit(MT_WCID_FLAG_HDR_TRANS, &msta->deflink.wcid.flags); 1182 else 1183 clear_bit(MT_WCID_FLAG_HDR_TRANS, &msta->deflink.wcid.flags); 1184 1185 mt76_connac_mcu_sta_update_hdr_trans(&dev->mt76, vif, &msta->deflink.wcid, 1186 MCU_UNI_CMD(STA_REC_UPDATE)); 1187 1188 mt792x_mutex_release(dev); 1189 } 1190 1191 #if IS_ENABLED(CONFIG_IPV6) 1192 static void mt7921_ipv6_addr_change(struct ieee80211_hw *hw, 1193 struct ieee80211_vif *vif, 1194 struct inet6_dev *idev) 1195 { 1196 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 1197 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1198 struct inet6_ifaddr *ifa; 1199 struct in6_addr ns_addrs[IEEE80211_BSS_ARP_ADDR_LIST_LEN]; 1200 struct sk_buff *skb; 1201 u8 i, idx = 0; 1202 1203 struct { 1204 struct { 1205 u8 bss_idx; 1206 u8 pad[3]; 1207 } __packed hdr; 1208 struct mt76_connac_arpns_tlv arpns; 1209 } req_hdr = { 1210 .hdr = { 1211 .bss_idx = mvif->bss_conf.mt76.idx, 1212 }, 1213 .arpns = { 1214 .tag = cpu_to_le16(UNI_OFFLOAD_OFFLOAD_ND), 1215 .mode = 2, /* update */ 1216 .option = 1, /* update only */ 1217 }, 1218 }; 1219 1220 read_lock_bh(&idev->lock); 1221 list_for_each_entry(ifa, &idev->addr_list, if_list) { 1222 if (ifa->flags & IFA_F_TENTATIVE) 1223 continue; 1224 ns_addrs[idx] = ifa->addr; 1225 if (++idx >= IEEE80211_BSS_ARP_ADDR_LIST_LEN) 1226 break; 1227 } 1228 read_unlock_bh(&idev->lock); 1229 1230 if (!idx) 1231 return; 1232 1233 req_hdr.arpns.ips_num = idx; 1234 req_hdr.arpns.len = cpu_to_le16(sizeof(struct mt76_connac_arpns_tlv) 1235 + idx * sizeof(struct in6_addr)); 1236 skb = __mt76_mcu_msg_alloc(&dev->mt76, &req_hdr, 1237 sizeof(req_hdr) + idx * sizeof(struct in6_addr), 1238 sizeof(req_hdr), GFP_ATOMIC); 1239 if (!skb) 1240 return; 1241 1242 for (i = 0; i < idx; i++) 1243 skb_put_data(skb, &ns_addrs[i].in6_u, sizeof(struct in6_addr)); 1244 1245 skb_queue_tail(&dev->ipv6_ns_list, skb); 1246 1247 ieee80211_queue_work(dev->mt76.hw, &dev->ipv6_ns_work); 1248 } 1249 #endif 1250 1251 int mt7921_set_tx_sar_pwr(struct ieee80211_hw *hw, 1252 const struct cfg80211_sar_specs *sar) 1253 { 1254 struct mt76_phy *mphy = hw->priv; 1255 1256 if (sar) { 1257 int err = mt76_init_sar_power(hw, sar); 1258 1259 if (err) 1260 return err; 1261 } 1262 mt792x_init_acpi_sar_power(mt792x_hw_phy(hw), !sar); 1263 1264 return mt76_connac_mcu_set_rate_txpower(mphy); 1265 } 1266 1267 static int mt7921_set_sar_specs(struct ieee80211_hw *hw, 1268 const struct cfg80211_sar_specs *sar) 1269 { 1270 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1271 int err; 1272 1273 mt792x_mutex_acquire(dev); 1274 err = mt7921_mcu_set_clc(dev, dev->mt76.alpha2, 1275 dev->country_ie_env); 1276 if (err < 0) 1277 goto out; 1278 1279 err = mt7921_set_tx_sar_pwr(hw, sar); 1280 out: 1281 mt792x_mutex_release(dev); 1282 1283 return err; 1284 } 1285 1286 static void 1287 mt7921_channel_switch_beacon(struct ieee80211_hw *hw, 1288 struct ieee80211_vif *vif, 1289 struct cfg80211_chan_def *chandef) 1290 { 1291 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1292 1293 mt792x_mutex_acquire(dev); 1294 mt7921_mcu_uni_add_beacon_offload(dev, hw, vif, true); 1295 mt792x_mutex_release(dev); 1296 } 1297 1298 static int 1299 mt7921_start_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 1300 struct ieee80211_bss_conf *link_conf) 1301 { 1302 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 1303 struct mt792x_phy *phy = mt792x_hw_phy(hw); 1304 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1305 int err; 1306 1307 mt792x_mutex_acquire(dev); 1308 1309 err = mt76_connac_mcu_uni_add_bss(phy->mt76, vif, &mvif->sta.deflink.wcid, 1310 true, mvif->bss_conf.mt76.ctx); 1311 if (err) 1312 goto out; 1313 1314 err = mt7921_mcu_set_bss_pm(dev, vif, true); 1315 if (err) 1316 goto out; 1317 1318 err = mt7921_mcu_sta_update(dev, NULL, vif, true, 1319 MT76_STA_INFO_STATE_NONE); 1320 out: 1321 mt792x_mutex_release(dev); 1322 1323 return err; 1324 } 1325 1326 static void 1327 mt7921_stop_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 1328 struct ieee80211_bss_conf *link_conf) 1329 { 1330 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 1331 struct mt792x_phy *phy = mt792x_hw_phy(hw); 1332 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1333 int err; 1334 1335 mt792x_mutex_acquire(dev); 1336 1337 err = mt7921_mcu_set_bss_pm(dev, vif, false); 1338 if (err) 1339 goto out; 1340 1341 mt76_connac_mcu_uni_add_bss(phy->mt76, vif, &mvif->sta.deflink.wcid, false, 1342 mvif->bss_conf.mt76.ctx); 1343 1344 out: 1345 mt792x_mutex_release(dev); 1346 } 1347 1348 static int 1349 mt7921_add_chanctx(struct ieee80211_hw *hw, 1350 struct ieee80211_chanctx_conf *ctx) 1351 { 1352 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1353 1354 dev->new_ctx = ctx; 1355 return 0; 1356 } 1357 1358 static void 1359 mt7921_remove_chanctx(struct ieee80211_hw *hw, 1360 struct ieee80211_chanctx_conf *ctx) 1361 { 1362 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1363 1364 if (dev->new_ctx == ctx) 1365 dev->new_ctx = NULL; 1366 } 1367 1368 static void 1369 mt7921_change_chanctx(struct ieee80211_hw *hw, 1370 struct ieee80211_chanctx_conf *ctx, 1371 u32 changed) 1372 { 1373 struct mt792x_chanctx *mctx = (struct mt792x_chanctx *)ctx->drv_priv; 1374 struct mt792x_phy *phy = mt792x_hw_phy(hw); 1375 struct ieee80211_vif *vif; 1376 struct mt792x_vif *mvif; 1377 1378 if (!mctx->bss_conf) 1379 return; 1380 1381 mvif = container_of(mctx->bss_conf, struct mt792x_vif, bss_conf); 1382 vif = container_of((void *)mvif, struct ieee80211_vif, drv_priv); 1383 1384 mt792x_mutex_acquire(phy->dev); 1385 if (vif->type == NL80211_IFTYPE_MONITOR) 1386 mt7921_mcu_config_sniffer(mvif, ctx); 1387 else 1388 mt76_connac_mcu_uni_set_chctx(mvif->phy->mt76, &mvif->bss_conf.mt76, ctx); 1389 mt792x_mutex_release(phy->dev); 1390 } 1391 1392 static void mt7921_mgd_prepare_tx(struct ieee80211_hw *hw, 1393 struct ieee80211_vif *vif, 1394 struct ieee80211_prep_tx_info *info) 1395 { 1396 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 1397 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1398 u16 duration = info->duration ? info->duration : 1399 jiffies_to_msecs(HZ); 1400 1401 mt792x_mutex_acquire(dev); 1402 mt7921_set_roc(mvif->phy, mvif, mvif->bss_conf.mt76.ctx->def.chan, duration, 1403 MT7921_ROC_REQ_JOIN); 1404 mt792x_mutex_release(dev); 1405 } 1406 1407 static void mt7921_mgd_complete_tx(struct ieee80211_hw *hw, 1408 struct ieee80211_vif *vif, 1409 struct ieee80211_prep_tx_info *info) 1410 { 1411 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 1412 1413 mt7921_abort_roc(mvif->phy, mvif); 1414 } 1415 1416 static int mt7921_switch_vif_chanctx(struct ieee80211_hw *hw, 1417 struct ieee80211_vif_chanctx_switch *vifs, 1418 int n_vifs, 1419 enum ieee80211_chanctx_switch_mode mode) 1420 { 1421 return mt792x_assign_vif_chanctx(hw, vifs->vif, vifs->link_conf, 1422 vifs->new_ctx); 1423 } 1424 1425 void mt7921_csa_work(struct work_struct *work) 1426 { 1427 struct mt792x_vif *mvif; 1428 struct mt792x_dev *dev; 1429 struct ieee80211_vif *vif; 1430 int ret; 1431 1432 mvif = (struct mt792x_vif *)container_of(work, struct mt792x_vif, 1433 csa_work); 1434 dev = mvif->phy->dev; 1435 vif = container_of((void *)mvif, struct ieee80211_vif, drv_priv); 1436 1437 mt792x_mutex_acquire(dev); 1438 ret = mt76_connac_mcu_uni_set_chctx(mvif->phy->mt76, &mvif->bss_conf.mt76, 1439 dev->new_ctx); 1440 mt792x_mutex_release(dev); 1441 1442 ieee80211_chswitch_done(vif, !ret, 0); 1443 } 1444 1445 static int mt7921_pre_channel_switch(struct ieee80211_hw *hw, 1446 struct ieee80211_vif *vif, 1447 struct ieee80211_channel_switch *chsw) 1448 { 1449 if (vif->type != NL80211_IFTYPE_STATION || !vif->cfg.assoc) 1450 return -EOPNOTSUPP; 1451 1452 /* Avoid beacon loss due to the CAC(Channel Availability Check) time 1453 * of the AP. 1454 */ 1455 if (!cfg80211_chandef_usable(hw->wiphy, &chsw->chandef, 1456 IEEE80211_CHAN_RADAR)) 1457 return -EOPNOTSUPP; 1458 1459 return 0; 1460 } 1461 1462 static void mt7921_channel_switch(struct ieee80211_hw *hw, 1463 struct ieee80211_vif *vif, 1464 struct ieee80211_channel_switch *chsw) 1465 { 1466 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 1467 u16 beacon_interval = vif->bss_conf.beacon_int; 1468 1469 mvif->csa_timer.expires = TU_TO_EXP_TIME(beacon_interval * chsw->count); 1470 add_timer(&mvif->csa_timer); 1471 } 1472 1473 static void mt7921_abort_channel_switch(struct ieee80211_hw *hw, 1474 struct ieee80211_vif *vif, 1475 struct ieee80211_bss_conf *link_conf) 1476 { 1477 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 1478 1479 timer_delete_sync(&mvif->csa_timer); 1480 cancel_work_sync(&mvif->csa_work); 1481 } 1482 1483 static void mt7921_channel_switch_rx_beacon(struct ieee80211_hw *hw, 1484 struct ieee80211_vif *vif, 1485 struct ieee80211_channel_switch *chsw) 1486 { 1487 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1488 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 1489 u16 beacon_interval = vif->bss_conf.beacon_int; 1490 1491 if (cfg80211_chandef_identical(&chsw->chandef, 1492 &dev->new_ctx->def) && 1493 chsw->count) { 1494 mod_timer(&mvif->csa_timer, 1495 TU_TO_EXP_TIME(beacon_interval * chsw->count)); 1496 } 1497 } 1498 1499 static void mt7921_rfkill_poll(struct ieee80211_hw *hw) 1500 { 1501 struct mt792x_phy *phy = mt792x_hw_phy(hw); 1502 int ret = 0; 1503 1504 mt792x_mutex_acquire(phy->dev); 1505 ret = mt7921_mcu_wf_rf_pin_ctrl(phy, WF_RF_PIN_POLL); 1506 mt792x_mutex_release(phy->dev); 1507 1508 wiphy_rfkill_set_hw_state(hw->wiphy, ret ? false : true); 1509 } 1510 1511 const struct ieee80211_ops mt7921_ops = { 1512 .tx = mt792x_tx, 1513 .start = mt7921_start, 1514 .stop = mt7921_stop, 1515 .add_interface = mt7921_add_interface, 1516 .remove_interface = mt792x_remove_interface, 1517 .config = mt7921_config, 1518 .conf_tx = mt792x_conf_tx, 1519 .configure_filter = mt7921_configure_filter, 1520 .bss_info_changed = mt7921_bss_info_changed, 1521 .start_ap = mt7921_start_ap, 1522 .stop_ap = mt7921_stop_ap, 1523 .sta_state = mt7921_sta_state, 1524 .sta_pre_rcu_remove = mt76_sta_pre_rcu_remove, 1525 .set_key = mt7921_set_key, 1526 .sta_set_decap_offload = mt7921_sta_set_decap_offload, 1527 #if IS_ENABLED(CONFIG_IPV6) 1528 .ipv6_addr_change = mt7921_ipv6_addr_change, 1529 #endif /* CONFIG_IPV6 */ 1530 .ampdu_action = mt7921_ampdu_action, 1531 .set_rts_threshold = mt7921_set_rts_threshold, 1532 .wake_tx_queue = mt76_wake_tx_queue, 1533 .release_buffered_frames = mt76_release_buffered_frames, 1534 .channel_switch_beacon = mt7921_channel_switch_beacon, 1535 .get_txpower = mt76_get_txpower, 1536 .get_stats = mt792x_get_stats, 1537 .get_et_sset_count = mt792x_get_et_sset_count, 1538 .get_et_strings = mt792x_get_et_strings, 1539 .get_et_stats = mt792x_get_et_stats, 1540 .get_tsf = mt792x_get_tsf, 1541 .set_tsf = mt792x_set_tsf, 1542 .get_survey = mt76_get_survey, 1543 .get_antenna = mt76_get_antenna, 1544 .set_antenna = mt7921_set_antenna, 1545 .set_coverage_class = mt792x_set_coverage_class, 1546 .hw_scan = mt7921_hw_scan, 1547 .cancel_hw_scan = mt7921_cancel_hw_scan, 1548 .sta_statistics = mt792x_sta_statistics, 1549 .sched_scan_start = mt7921_start_sched_scan, 1550 .sched_scan_stop = mt7921_stop_sched_scan, 1551 CFG80211_TESTMODE_CMD(mt7921_testmode_cmd) 1552 CFG80211_TESTMODE_DUMP(mt7921_testmode_dump) 1553 #ifdef CONFIG_PM 1554 .suspend = mt7921_suspend, 1555 .resume = mt7921_resume, 1556 .set_wakeup = mt792x_set_wakeup, 1557 .set_rekey_data = mt7921_set_rekey_data, 1558 #endif /* CONFIG_PM */ 1559 .flush = mt792x_flush, 1560 .set_sar_specs = mt7921_set_sar_specs, 1561 .rfkill_poll = mt7921_rfkill_poll, 1562 .remain_on_channel = mt7921_remain_on_channel, 1563 .cancel_remain_on_channel = mt7921_cancel_remain_on_channel, 1564 .add_chanctx = mt7921_add_chanctx, 1565 .remove_chanctx = mt7921_remove_chanctx, 1566 .change_chanctx = mt7921_change_chanctx, 1567 .assign_vif_chanctx = mt792x_assign_vif_chanctx, 1568 .unassign_vif_chanctx = mt792x_unassign_vif_chanctx, 1569 .mgd_prepare_tx = mt7921_mgd_prepare_tx, 1570 .mgd_complete_tx = mt7921_mgd_complete_tx, 1571 .switch_vif_chanctx = mt7921_switch_vif_chanctx, 1572 .pre_channel_switch = mt7921_pre_channel_switch, 1573 .channel_switch = mt7921_channel_switch, 1574 .abort_channel_switch = mt7921_abort_channel_switch, 1575 .channel_switch_rx_beacon = mt7921_channel_switch_rx_beacon, 1576 }; 1577 EXPORT_SYMBOL_GPL(mt7921_ops); 1578 1579 MODULE_DESCRIPTION("MediaTek MT7921 core driver"); 1580 MODULE_LICENSE("Dual BSD/GPL"); 1581 MODULE_AUTHOR("Sean Wang <sean.wang@mediatek.com>"); 1582