1 // SPDX-License-Identifier: BSD-3-Clause-Clear 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 87 if (is_mt7922(phy->mt76->dev)) { 88 he_cap_elem->phy_cap_info[0] |= 89 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G; 90 } 91 break; 92 case NL80211_IFTYPE_STATION: 93 he_cap_elem->mac_cap_info[1] |= 94 IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US; 95 96 if (band == NL80211_BAND_2GHZ) 97 he_cap_elem->phy_cap_info[0] |= 98 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_RU_MAPPING_IN_2G; 99 else 100 he_cap_elem->phy_cap_info[0] |= 101 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_RU_MAPPING_IN_5G; 102 103 he_cap_elem->phy_cap_info[1] |= 104 IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A | 105 IEEE80211_HE_PHY_CAP1_HE_LTF_AND_GI_FOR_HE_PPDUS_0_8US; 106 he_cap_elem->phy_cap_info[3] |= 107 IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK | 108 IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK; 109 he_cap_elem->phy_cap_info[4] |= 110 IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE | 111 IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_4; 112 he_cap_elem->phy_cap_info[5] |= 113 IEEE80211_HE_PHY_CAP5_NG16_SU_FEEDBACK | 114 IEEE80211_HE_PHY_CAP5_NG16_MU_FEEDBACK; 115 he_cap_elem->phy_cap_info[6] |= 116 IEEE80211_HE_PHY_CAP6_CODEBOOK_SIZE_42_SU | 117 IEEE80211_HE_PHY_CAP6_CODEBOOK_SIZE_75_MU | 118 IEEE80211_HE_PHY_CAP6_TRIG_CQI_FB | 119 IEEE80211_HE_PHY_CAP6_PARTIAL_BW_EXT_RANGE | 120 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT; 121 he_cap_elem->phy_cap_info[7] |= 122 IEEE80211_HE_PHY_CAP7_POWER_BOOST_FACTOR_SUPP | 123 IEEE80211_HE_PHY_CAP7_HE_SU_MU_PPDU_4XLTF_AND_08_US_GI; 124 he_cap_elem->phy_cap_info[8] |= 125 IEEE80211_HE_PHY_CAP8_20MHZ_IN_40MHZ_HE_PPDU_IN_2G | 126 IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_484; 127 he_cap_elem->phy_cap_info[9] |= 128 IEEE80211_HE_PHY_CAP9_LONGER_THAN_16_SIGB_OFDM_SYM | 129 IEEE80211_HE_PHY_CAP9_NON_TRIGGERED_CQI_FEEDBACK | 130 IEEE80211_HE_PHY_CAP9_TX_1024_QAM_LESS_THAN_242_TONE_RU | 131 IEEE80211_HE_PHY_CAP9_RX_1024_QAM_LESS_THAN_242_TONE_RU | 132 IEEE80211_HE_PHY_CAP9_RX_FULL_BW_SU_USING_MU_WITH_COMP_SIGB | 133 IEEE80211_HE_PHY_CAP9_RX_FULL_BW_SU_USING_MU_WITH_NON_COMP_SIGB; 134 135 if (is_mt7922(phy->mt76->dev)) { 136 he_cap_elem->phy_cap_info[0] |= 137 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G; 138 he_cap_elem->phy_cap_info[4] |= 139 IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_4; 140 he_cap_elem->phy_cap_info[8] |= 141 IEEE80211_HE_PHY_CAP8_20MHZ_IN_160MHZ_HE_PPDU | 142 IEEE80211_HE_PHY_CAP8_80MHZ_IN_160MHZ_HE_PPDU; 143 } 144 break; 145 } 146 147 he_mcs->rx_mcs_80 = cpu_to_le16(mcs_map); 148 he_mcs->tx_mcs_80 = cpu_to_le16(mcs_map); 149 if (is_mt7922(phy->mt76->dev)) { 150 he_mcs->rx_mcs_160 = cpu_to_le16(mcs_map); 151 he_mcs->tx_mcs_160 = cpu_to_le16(mcs_map); 152 } 153 154 memset(he_cap->ppe_thres, 0, sizeof(he_cap->ppe_thres)); 155 if (he_cap_elem->phy_cap_info[6] & 156 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 157 mt76_connac_gen_ppe_thresh(he_cap->ppe_thres, nss, band); 158 } else { 159 he_cap_elem->phy_cap_info[9] |= 160 u8_encode_bits(IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_16US, 161 IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK); 162 } 163 164 if (band == NL80211_BAND_6GHZ) { 165 struct ieee80211_supported_band *sband = 166 &phy->mt76->sband_5g.sband; 167 struct ieee80211_sta_vht_cap *vht_cap = &sband->vht_cap; 168 struct ieee80211_sta_ht_cap *ht_cap = &sband->ht_cap; 169 u32 exp; 170 u16 cap; 171 172 cap = u16_encode_bits(ht_cap->ampdu_density, 173 IEEE80211_HE_6GHZ_CAP_MIN_MPDU_START); 174 exp = u32_get_bits(vht_cap->cap, 175 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK); 176 cap |= u16_encode_bits(exp, 177 IEEE80211_HE_6GHZ_CAP_MAX_AMPDU_LEN_EXP); 178 exp = u32_get_bits(vht_cap->cap, 179 IEEE80211_VHT_CAP_MAX_MPDU_MASK); 180 cap |= u16_encode_bits(exp, 181 IEEE80211_HE_6GHZ_CAP_MAX_MPDU_LEN); 182 if (vht_cap->cap & IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN) 183 cap |= IEEE80211_HE_6GHZ_CAP_TX_ANTPAT_CONS; 184 if (vht_cap->cap & IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN) 185 cap |= IEEE80211_HE_6GHZ_CAP_RX_ANTPAT_CONS; 186 187 data[idx].he_6ghz_capa.capa = cpu_to_le16(cap); 188 } 189 idx++; 190 } 191 192 return idx; 193 } 194 195 void mt7921_set_stream_he_caps(struct mt792x_phy *phy) 196 { 197 struct ieee80211_sband_iftype_data *data; 198 struct ieee80211_supported_band *band; 199 int n; 200 201 if (phy->mt76->cap.has_2ghz) { 202 data = phy->iftype[NL80211_BAND_2GHZ]; 203 n = mt7921_init_he_caps(phy, NL80211_BAND_2GHZ, data); 204 205 band = &phy->mt76->sband_2g.sband; 206 _ieee80211_set_sband_iftype_data(band, data, n); 207 } 208 209 if (phy->mt76->cap.has_5ghz) { 210 data = phy->iftype[NL80211_BAND_5GHZ]; 211 n = mt7921_init_he_caps(phy, NL80211_BAND_5GHZ, data); 212 213 band = &phy->mt76->sband_5g.sband; 214 _ieee80211_set_sband_iftype_data(band, data, n); 215 216 if (phy->mt76->cap.has_6ghz) { 217 data = phy->iftype[NL80211_BAND_6GHZ]; 218 n = mt7921_init_he_caps(phy, NL80211_BAND_6GHZ, data); 219 220 band = &phy->mt76->sband_6g.sband; 221 _ieee80211_set_sband_iftype_data(band, data, n); 222 } 223 } 224 } 225 226 int __mt7921_start(struct mt792x_phy *phy) 227 { 228 struct mt76_phy *mphy = phy->mt76; 229 int err; 230 231 err = mt76_connac_mcu_set_mac_enable(mphy->dev, 0, true, false); 232 if (err) 233 return err; 234 235 err = mt76_connac_mcu_set_channel_domain(mphy); 236 if (err) 237 return err; 238 239 err = mt7921_mcu_set_chan_info(phy, MCU_EXT_CMD(SET_RX_PATH)); 240 if (err) 241 return err; 242 243 err = mt7921_set_tx_sar_pwr(mphy->hw, NULL); 244 if (err) 245 return err; 246 247 mt792x_mac_reset_counters(phy); 248 set_bit(MT76_STATE_RUNNING, &mphy->state); 249 250 ieee80211_queue_delayed_work(mphy->hw, &mphy->mac_work, 251 MT792x_WATCHDOG_TIME); 252 if (mt76_is_mmio(mphy->dev)) { 253 err = mt7921_mcu_radio_led_ctrl(phy->dev, EXT_CMD_RADIO_LED_CTRL_ENABLE); 254 if (err) 255 return err; 256 257 err = mt7921_mcu_radio_led_ctrl(phy->dev, EXT_CMD_RADIO_ON_LED); 258 if (err) 259 return err; 260 } 261 262 if (phy->chip_cap & MT792x_CHIP_CAP_WF_RF_PIN_CTRL_EVT_EN) { 263 mt7921_mcu_wf_rf_pin_ctrl(phy, WF_RF_PIN_INIT); 264 wiphy_rfkill_start_polling(mphy->hw->wiphy); 265 } 266 267 return 0; 268 } 269 EXPORT_SYMBOL_GPL(__mt7921_start); 270 271 static int mt7921_start(struct ieee80211_hw *hw) 272 { 273 struct mt792x_phy *phy = mt792x_hw_phy(hw); 274 int err; 275 276 mt792x_mutex_acquire(phy->dev); 277 err = __mt7921_start(phy); 278 mt792x_mutex_release(phy->dev); 279 280 return err; 281 } 282 283 static void mt7921_stop(struct ieee80211_hw *hw, bool suspend) 284 { 285 struct mt792x_dev *dev = mt792x_hw_dev(hw); 286 int err = 0; 287 288 if (mt76_is_mmio(&dev->mt76)) { 289 mt792x_mutex_acquire(dev); 290 err = mt7921_mcu_radio_led_ctrl(dev, EXT_CMD_RADIO_OFF_LED); 291 mt792x_mutex_release(dev); 292 if (err) 293 return; 294 } 295 296 mt792x_stop(hw, false); 297 } 298 299 static int 300 mt7921_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) 301 { 302 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 303 struct mt792x_dev *dev = mt792x_hw_dev(hw); 304 struct mt792x_phy *phy = mt792x_hw_phy(hw); 305 struct mt76_txq *mtxq; 306 int idx, ret = 0; 307 308 mt792x_mutex_acquire(dev); 309 310 mvif->bss_conf.mt76.idx = __ffs64(~dev->mt76.vif_mask); 311 if (mvif->bss_conf.mt76.idx >= MT792x_MAX_INTERFACES) { 312 ret = -ENOSPC; 313 goto out; 314 } 315 316 mvif->bss_conf.mt76.omac_idx = mvif->bss_conf.mt76.idx; 317 mvif->phy = phy; 318 mvif->bss_conf.vif = mvif; 319 mvif->bss_conf.mt76.band_idx = 0; 320 mvif->bss_conf.mt76.wmm_idx = mvif->bss_conf.mt76.idx % MT76_CONNAC_MAX_WMM_SETS; 321 322 ret = mt76_connac_mcu_uni_add_dev(&dev->mphy, &vif->bss_conf, 323 &mvif->bss_conf.mt76, 324 &mvif->sta.deflink.wcid, true); 325 if (ret) 326 goto out; 327 328 dev->mt76.vif_mask |= BIT_ULL(mvif->bss_conf.mt76.idx); 329 phy->omac_mask |= BIT_ULL(mvif->bss_conf.mt76.omac_idx); 330 331 idx = MT792x_WTBL_RESERVED - mvif->bss_conf.mt76.idx; 332 333 INIT_LIST_HEAD(&mvif->sta.deflink.wcid.poll_list); 334 mvif->sta.deflink.wcid.idx = idx; 335 mvif->sta.deflink.wcid.tx_info |= MT_WCID_TX_INFO_SET; 336 mt76_wcid_init(&mvif->sta.deflink.wcid, mvif->bss_conf.mt76.band_idx); 337 338 mt7921_mac_wtbl_update(dev, idx, 339 MT_WTBL_UPDATE_ADM_COUNT_CLEAR); 340 341 ewma_rssi_init(&mvif->bss_conf.rssi); 342 343 rcu_assign_pointer(dev->mt76.wcid[idx], &mvif->sta.deflink.wcid); 344 if (vif->txq) { 345 mtxq = (struct mt76_txq *)vif->txq->drv_priv; 346 mtxq->wcid = idx; 347 } 348 349 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER; 350 if (phy->chip_cap & MT792x_CHIP_CAP_RSSI_NOTIFY_EVT_EN) 351 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_CQM_RSSI; 352 353 INIT_WORK(&mvif->csa_work, mt7921_csa_work); 354 timer_setup(&mvif->csa_timer, mt792x_csa_timer, 0); 355 out: 356 mt792x_mutex_release(dev); 357 358 return ret; 359 } 360 361 static void mt7921_roc_iter(void *priv, u8 *mac, 362 struct ieee80211_vif *vif) 363 { 364 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 365 struct mt792x_phy *phy = priv; 366 367 mt7921_mcu_abort_roc(phy, mvif, phy->roc_token_id); 368 } 369 370 void mt7921_roc_abort_sync(struct mt792x_dev *dev) 371 { 372 struct mt792x_phy *phy = &dev->phy; 373 374 if (!test_and_clear_bit(MT76_STATE_ROC, &phy->mt76->state)) 375 return; 376 377 timer_delete_sync(&phy->roc_timer); 378 cancel_work(&phy->roc_work); 379 380 ieee80211_iterate_interfaces(mt76_hw(dev), 381 IEEE80211_IFACE_ITER_RESUME_ALL, 382 mt7921_roc_iter, (void *)phy); 383 } 384 EXPORT_SYMBOL_GPL(mt7921_roc_abort_sync); 385 386 void mt7921_roc_work(struct work_struct *work) 387 { 388 struct mt792x_phy *phy; 389 390 phy = (struct mt792x_phy *)container_of(work, struct mt792x_phy, 391 roc_work); 392 393 mt792x_mutex_acquire(phy->dev); 394 if (!test_and_clear_bit(MT76_STATE_ROC, &phy->mt76->state)) { 395 mt792x_mutex_release(phy->dev); 396 return; 397 } 398 ieee80211_iterate_active_interfaces(phy->mt76->hw, 399 IEEE80211_IFACE_ITER_RESUME_ALL, 400 mt7921_roc_iter, phy); 401 mt792x_mutex_release(phy->dev); 402 ieee80211_remain_on_channel_expired(phy->mt76->hw); 403 } 404 405 static int mt7921_abort_roc(struct mt792x_phy *phy, struct mt792x_vif *vif) 406 { 407 int err = 0; 408 409 timer_delete_sync(&phy->roc_timer); 410 cancel_work_sync(&phy->roc_work); 411 412 mt792x_mutex_acquire(phy->dev); 413 if (test_and_clear_bit(MT76_STATE_ROC, &phy->mt76->state)) 414 err = mt7921_mcu_abort_roc(phy, vif, phy->roc_token_id); 415 mt792x_mutex_release(phy->dev); 416 417 return err; 418 } 419 420 static int mt7921_set_roc(struct mt792x_phy *phy, 421 struct mt792x_vif *vif, 422 struct ieee80211_channel *chan, 423 int duration, 424 enum mt7921_roc_req type) 425 { 426 int err; 427 428 if (test_and_set_bit(MT76_STATE_ROC, &phy->mt76->state)) 429 return -EBUSY; 430 431 phy->roc_grant = false; 432 433 err = mt7921_mcu_set_roc(phy, vif, chan, duration, type, 434 ++phy->roc_token_id); 435 if (err < 0) { 436 clear_bit(MT76_STATE_ROC, &phy->mt76->state); 437 goto out; 438 } 439 440 if (!wait_event_timeout(phy->roc_wait, phy->roc_grant, HZ)) { 441 mt7921_mcu_abort_roc(phy, vif, phy->roc_token_id); 442 clear_bit(MT76_STATE_ROC, &phy->mt76->state); 443 err = -ETIMEDOUT; 444 } 445 446 out: 447 return err; 448 } 449 450 static int mt7921_remain_on_channel(struct ieee80211_hw *hw, 451 struct ieee80211_vif *vif, 452 struct ieee80211_channel *chan, 453 int duration, 454 enum ieee80211_roc_type type) 455 { 456 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 457 struct mt792x_phy *phy = mt792x_hw_phy(hw); 458 int err; 459 460 mt792x_mutex_acquire(phy->dev); 461 err = mt7921_set_roc(phy, mvif, chan, duration, MT7921_ROC_REQ_ROC); 462 mt792x_mutex_release(phy->dev); 463 464 return err; 465 } 466 467 static int mt7921_cancel_remain_on_channel(struct ieee80211_hw *hw, 468 struct ieee80211_vif *vif) 469 { 470 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 471 struct mt792x_phy *phy = mt792x_hw_phy(hw); 472 473 return mt7921_abort_roc(phy, mvif); 474 } 475 476 int mt7921_set_channel(struct mt76_phy *mphy) 477 { 478 struct mt792x_phy *phy = mphy->priv; 479 struct mt792x_dev *dev = phy->dev; 480 int ret; 481 482 mt76_connac_pm_wake(mphy, &dev->pm); 483 ret = mt7921_mcu_set_chan_info(phy, MCU_EXT_CMD(CHANNEL_SWITCH)); 484 if (ret) 485 goto out; 486 487 mt792x_mac_set_timeing(phy); 488 mt792x_mac_reset_counters(phy); 489 phy->noise = 0; 490 491 out: 492 mt76_connac_power_save_sched(mphy, &dev->pm); 493 494 ieee80211_queue_delayed_work(mphy->hw, &mphy->mac_work, 495 MT792x_WATCHDOG_TIME); 496 497 return ret; 498 } 499 EXPORT_SYMBOL_GPL(mt7921_set_channel); 500 501 static int mt7921_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, 502 struct ieee80211_vif *vif, struct ieee80211_sta *sta, 503 struct ieee80211_key_conf *key) 504 { 505 struct mt792x_dev *dev = mt792x_hw_dev(hw); 506 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 507 struct mt792x_sta *msta = sta ? (struct mt792x_sta *)sta->drv_priv : 508 &mvif->sta; 509 struct mt76_wcid *wcid = &msta->deflink.wcid; 510 u8 *wcid_keyidx = &wcid->hw_key_idx; 511 int idx = key->keyidx, err = 0; 512 513 /* The hardware does not support per-STA RX GTK, fallback 514 * to software mode for these. 515 */ 516 if ((vif->type == NL80211_IFTYPE_ADHOC || 517 vif->type == NL80211_IFTYPE_MESH_POINT) && 518 (key->cipher == WLAN_CIPHER_SUITE_TKIP || 519 key->cipher == WLAN_CIPHER_SUITE_CCMP) && 520 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) 521 return -EOPNOTSUPP; 522 523 /* fall back to sw encryption for unsupported ciphers */ 524 switch (key->cipher) { 525 case WLAN_CIPHER_SUITE_AES_CMAC: 526 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIE; 527 wcid_keyidx = &wcid->hw_key_idx2; 528 break; 529 case WLAN_CIPHER_SUITE_WEP40: 530 case WLAN_CIPHER_SUITE_WEP104: 531 if (!mvif->wep_sta) 532 return -EOPNOTSUPP; 533 break; 534 case WLAN_CIPHER_SUITE_TKIP: 535 case WLAN_CIPHER_SUITE_CCMP: 536 case WLAN_CIPHER_SUITE_CCMP_256: 537 case WLAN_CIPHER_SUITE_GCMP: 538 case WLAN_CIPHER_SUITE_GCMP_256: 539 case WLAN_CIPHER_SUITE_SMS4: 540 break; 541 default: 542 return -EOPNOTSUPP; 543 } 544 545 mt792x_mutex_acquire(dev); 546 547 if (cmd == SET_KEY) { 548 *wcid_keyidx = idx; 549 } else { 550 if (idx == *wcid_keyidx) 551 *wcid_keyidx = -1; 552 553 /* For security issue we don't trigger the key deletion when 554 * reassociating. But we should trigger the deletion process 555 * to avoid using incorrect cipher after disconnection, 556 */ 557 if (vif->type != NL80211_IFTYPE_STATION || vif->cfg.assoc) 558 goto out; 559 } 560 561 mt76_wcid_key_setup(&dev->mt76, wcid, key); 562 err = mt76_connac_mcu_add_key(&dev->mt76, vif, &msta->deflink.bip, 563 key, MCU_UNI_CMD(STA_REC_UPDATE), 564 &msta->deflink.wcid, cmd); 565 if (err) 566 goto out; 567 568 if (key->cipher == WLAN_CIPHER_SUITE_WEP104 || 569 key->cipher == WLAN_CIPHER_SUITE_WEP40) 570 err = mt76_connac_mcu_add_key(&dev->mt76, vif, 571 &mvif->wep_sta->deflink.bip, 572 key, MCU_UNI_CMD(STA_REC_UPDATE), 573 &mvif->wep_sta->deflink.wcid, cmd); 574 out: 575 mt792x_mutex_release(dev); 576 577 return err; 578 } 579 580 static void 581 mt7921_pm_interface_iter(void *priv, u8 *mac, struct ieee80211_vif *vif) 582 { 583 struct mt792x_dev *dev = priv; 584 struct ieee80211_hw *hw = mt76_hw(dev); 585 bool pm_enable = dev->pm.enable; 586 int err; 587 588 err = mt7921_mcu_set_beacon_filter(dev, vif, pm_enable); 589 if (err < 0) 590 return; 591 592 if (pm_enable) { 593 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER; 594 ieee80211_hw_set(hw, CONNECTION_MONITOR); 595 } else { 596 vif->driver_flags &= ~IEEE80211_VIF_BEACON_FILTER; 597 __clear_bit(IEEE80211_HW_CONNECTION_MONITOR, hw->flags); 598 } 599 } 600 601 static void 602 mt7921_sniffer_interface_iter(void *priv, u8 *mac, struct ieee80211_vif *vif) 603 { 604 struct mt792x_dev *dev = priv; 605 struct ieee80211_hw *hw = mt76_hw(dev); 606 struct mt76_connac_pm *pm = &dev->pm; 607 bool monitor = !!(hw->conf.flags & IEEE80211_CONF_MONITOR); 608 609 mt7921_mcu_set_sniffer(dev, vif, monitor); 610 pm->enable = pm->enable_user && !monitor; 611 pm->ds_enable = pm->ds_enable_user && !monitor; 612 613 mt76_connac_mcu_set_deep_sleep(&dev->mt76, pm->ds_enable); 614 615 if (monitor) 616 mt7921_mcu_set_beacon_filter(dev, vif, false); 617 } 618 619 void mt7921_set_runtime_pm(struct mt792x_dev *dev) 620 { 621 struct ieee80211_hw *hw = mt76_hw(dev); 622 struct mt76_connac_pm *pm = &dev->pm; 623 bool monitor = !!(hw->conf.flags & IEEE80211_CONF_MONITOR); 624 625 pm->enable = pm->enable_user && !monitor; 626 ieee80211_iterate_active_interfaces(hw, 627 IEEE80211_IFACE_ITER_RESUME_ALL, 628 mt7921_pm_interface_iter, dev); 629 pm->ds_enable = pm->ds_enable_user && !monitor; 630 mt76_connac_mcu_set_deep_sleep(&dev->mt76, pm->ds_enable); 631 } 632 633 static int mt7921_config(struct ieee80211_hw *hw, int radio_idx, u32 changed) 634 { 635 struct mt792x_dev *dev = mt792x_hw_dev(hw); 636 struct mt792x_phy *phy = mt792x_hw_phy(hw); 637 int ret = 0; 638 639 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { 640 ret = mt76_update_channel(phy->mt76); 641 if (ret) 642 return ret; 643 } 644 645 mt792x_mutex_acquire(dev); 646 647 if (changed & IEEE80211_CONF_CHANGE_POWER) { 648 ret = mt7921_set_tx_sar_pwr(hw, NULL); 649 if (ret) 650 goto out; 651 } 652 653 if (changed & IEEE80211_CONF_CHANGE_MONITOR) { 654 ieee80211_iterate_active_interfaces(hw, 655 IEEE80211_IFACE_ITER_RESUME_ALL, 656 mt7921_sniffer_interface_iter, dev); 657 } 658 659 out: 660 mt792x_mutex_release(dev); 661 662 return ret; 663 } 664 665 static void mt7921_configure_filter(struct ieee80211_hw *hw, 666 unsigned int changed_flags, 667 unsigned int *total_flags, 668 u64 multicast) 669 { 670 #define MT7921_FILTER_FCSFAIL BIT(2) 671 #define MT7921_FILTER_CONTROL BIT(5) 672 #define MT7921_FILTER_OTHER_BSS BIT(6) 673 #define MT7921_FILTER_ENABLE BIT(31) 674 675 struct mt792x_dev *dev = mt792x_hw_dev(hw); 676 u32 flags = MT7921_FILTER_ENABLE; 677 678 #define MT7921_FILTER(_fif, _type) do { \ 679 if (*total_flags & (_fif)) \ 680 flags |= MT7921_FILTER_##_type; \ 681 } while (0) 682 683 MT7921_FILTER(FIF_FCSFAIL, FCSFAIL); 684 MT7921_FILTER(FIF_CONTROL, CONTROL); 685 MT7921_FILTER(FIF_OTHER_BSS, OTHER_BSS); 686 687 mt792x_mutex_acquire(dev); 688 mt7921_mcu_set_rxfilter(dev, flags, 0, 0); 689 mt792x_mutex_release(dev); 690 691 *total_flags &= (FIF_OTHER_BSS | FIF_FCSFAIL | FIF_CONTROL); 692 } 693 694 static void mt7921_bss_info_changed(struct ieee80211_hw *hw, 695 struct ieee80211_vif *vif, 696 struct ieee80211_bss_conf *info, 697 u64 changed) 698 { 699 struct mt792x_phy *phy = mt792x_hw_phy(hw); 700 struct mt792x_dev *dev = mt792x_hw_dev(hw); 701 702 mt792x_mutex_acquire(dev); 703 704 if (changed & BSS_CHANGED_ERP_SLOT) { 705 int slottime = info->use_short_slot ? 9 : 20; 706 707 if (slottime != phy->slottime) { 708 phy->slottime = slottime; 709 mt792x_mac_set_timeing(phy); 710 } 711 } 712 713 if (changed & (BSS_CHANGED_BEACON | 714 BSS_CHANGED_BEACON_ENABLED)) 715 mt7921_mcu_uni_add_beacon_offload(dev, hw, vif, 716 info->enable_beacon); 717 718 /* ensure that enable txcmd_mode after bss_info */ 719 if (changed & (BSS_CHANGED_QOS | BSS_CHANGED_BEACON_ENABLED)) 720 mt7921_mcu_set_tx(dev, vif); 721 722 if (changed & BSS_CHANGED_PS) 723 mt7921_mcu_uni_bss_ps(dev, vif); 724 725 if (changed & BSS_CHANGED_CQM) 726 mt7921_mcu_set_rssimonitor(dev, vif); 727 728 if (changed & BSS_CHANGED_ASSOC) { 729 mt7921_mcu_sta_update(dev, NULL, vif, true, 730 MT76_STA_INFO_STATE_ASSOC); 731 mt7921_mcu_set_beacon_filter(dev, vif, vif->cfg.assoc); 732 } 733 734 if (changed & BSS_CHANGED_ARP_FILTER) { 735 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 736 737 mt76_connac_mcu_update_arp_filter(&dev->mt76, &mvif->bss_conf.mt76, 738 info); 739 } 740 741 mt792x_mutex_release(dev); 742 } 743 744 static void 745 mt7921_calc_vif_num(void *priv, u8 *mac, struct ieee80211_vif *vif) 746 { 747 u32 *num = priv; 748 749 if (!priv) 750 return; 751 752 switch (vif->type) { 753 case NL80211_IFTYPE_STATION: 754 case NL80211_IFTYPE_P2P_CLIENT: 755 case NL80211_IFTYPE_AP: 756 case NL80211_IFTYPE_P2P_GO: 757 *num += 1; 758 break; 759 default: 760 break; 761 } 762 } 763 764 static void 765 mt7921_regd_set_6ghz_power_type(struct ieee80211_vif *vif, bool is_add) 766 { 767 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 768 struct mt792x_phy *phy = mvif->phy; 769 struct mt792x_dev *dev = phy->dev; 770 u32 valid_vif_num = 0; 771 772 ieee80211_iterate_active_interfaces(mt76_hw(dev), 773 IEEE80211_IFACE_ITER_RESUME_ALL, 774 mt7921_calc_vif_num, &valid_vif_num); 775 776 if (valid_vif_num > 1) { 777 phy->power_type = MT_AP_DEFAULT; 778 goto out; 779 } 780 781 if (!is_add) 782 vif->bss_conf.power_type = IEEE80211_REG_UNSET_AP; 783 784 switch (vif->bss_conf.power_type) { 785 case IEEE80211_REG_SP_AP: 786 phy->power_type = MT_AP_SP; 787 break; 788 case IEEE80211_REG_VLP_AP: 789 phy->power_type = MT_AP_VLP; 790 break; 791 case IEEE80211_REG_LPI_AP: 792 phy->power_type = MT_AP_LPI; 793 break; 794 case IEEE80211_REG_UNSET_AP: 795 phy->power_type = MT_AP_UNSET; 796 break; 797 default: 798 phy->power_type = MT_AP_DEFAULT; 799 break; 800 } 801 802 out: 803 if (vif->bss_conf.chanreq.oper.chan->band == NL80211_BAND_6GHZ) 804 mt7921_regd_update(dev); 805 } 806 807 int mt7921_mac_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif, 808 struct ieee80211_sta *sta) 809 { 810 struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76); 811 struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv; 812 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 813 int ret, idx; 814 815 if (sta->aid > MT7921_MAX_AID) 816 return -ENOENT; 817 818 idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT792x_WTBL_STA - 1); 819 if (idx < 0) 820 return -ENOSPC; 821 822 INIT_LIST_HEAD(&msta->deflink.wcid.poll_list); 823 msta->vif = mvif; 824 msta->deflink.wcid.sta = 1; 825 msta->deflink.wcid.idx = idx; 826 msta->deflink.wcid.phy_idx = mvif->bss_conf.mt76.band_idx; 827 msta->deflink.wcid.tx_info |= MT_WCID_TX_INFO_SET; 828 msta->deflink.last_txs = jiffies; 829 msta->deflink.sta = msta; 830 831 ret = mt76_connac_pm_wake(&dev->mphy, &dev->pm); 832 if (ret) 833 return ret; 834 835 if (vif->type == NL80211_IFTYPE_STATION) 836 mvif->wep_sta = msta; 837 838 mt7921_mac_wtbl_update(dev, idx, 839 MT_WTBL_UPDATE_ADM_COUNT_CLEAR); 840 841 ret = mt7921_mcu_sta_update(dev, sta, vif, true, 842 MT76_STA_INFO_STATE_NONE); 843 if (ret) 844 return ret; 845 846 mt7921_regd_set_6ghz_power_type(vif, true); 847 848 mt76_connac_power_save_sched(&dev->mphy, &dev->pm); 849 850 return 0; 851 } 852 EXPORT_SYMBOL_GPL(mt7921_mac_sta_add); 853 854 int mt7921_mac_sta_event(struct mt76_dev *mdev, struct ieee80211_vif *vif, 855 struct ieee80211_sta *sta, enum mt76_sta_event ev) 856 { 857 struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76); 858 struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv; 859 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 860 861 if (sta->aid > MT7921_MAX_AID) 862 return -ENOENT; 863 864 if (ev != MT76_STA_EVENT_ASSOC) 865 return 0; 866 867 mt792x_mutex_acquire(dev); 868 869 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 870 mt76_connac_mcu_uni_add_bss(&dev->mphy, vif, &mvif->sta.deflink.wcid, 871 true, mvif->bss_conf.mt76.ctx); 872 873 ewma_avg_signal_init(&msta->deflink.avg_ack_signal); 874 875 mt7921_mac_wtbl_update(dev, msta->deflink.wcid.idx, 876 MT_WTBL_UPDATE_ADM_COUNT_CLEAR); 877 memset(msta->deflink.airtime_ac, 0, sizeof(msta->deflink.airtime_ac)); 878 879 mt7921_mcu_sta_update(dev, sta, vif, true, MT76_STA_INFO_STATE_ASSOC); 880 881 mt792x_mutex_release(dev); 882 883 return 0; 884 } 885 EXPORT_SYMBOL_GPL(mt7921_mac_sta_event); 886 887 void mt7921_mac_sta_remove(struct mt76_dev *mdev, struct ieee80211_vif *vif, 888 struct ieee80211_sta *sta) 889 { 890 struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76); 891 struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv; 892 893 mt7921_roc_abort_sync(dev); 894 mt76_connac_free_pending_tx_skbs(&dev->pm, &msta->deflink.wcid); 895 mt76_connac_pm_wake(&dev->mphy, &dev->pm); 896 897 mt7921_mcu_sta_update(dev, sta, vif, false, MT76_STA_INFO_STATE_NONE); 898 mt7921_mac_wtbl_update(dev, msta->deflink.wcid.idx, 899 MT_WTBL_UPDATE_ADM_COUNT_CLEAR); 900 901 if (vif->type == NL80211_IFTYPE_STATION) { 902 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 903 904 mvif->wep_sta = NULL; 905 ewma_rssi_init(&mvif->bss_conf.rssi); 906 if (!sta->tdls) 907 mt76_connac_mcu_uni_add_bss(&dev->mphy, vif, 908 &mvif->sta.deflink.wcid, false, 909 mvif->bss_conf.mt76.ctx); 910 } 911 912 spin_lock_bh(&dev->mt76.sta_poll_lock); 913 if (!list_empty(&msta->deflink.wcid.poll_list)) 914 list_del_init(&msta->deflink.wcid.poll_list); 915 spin_unlock_bh(&dev->mt76.sta_poll_lock); 916 917 mt7921_regd_set_6ghz_power_type(vif, false); 918 919 mt76_connac_power_save_sched(&dev->mphy, &dev->pm); 920 } 921 EXPORT_SYMBOL_GPL(mt7921_mac_sta_remove); 922 923 static int mt7921_set_rts_threshold(struct ieee80211_hw *hw, int radio_idx, 924 u32 val) 925 { 926 struct mt792x_dev *dev = mt792x_hw_dev(hw); 927 928 mt792x_mutex_acquire(dev); 929 mt76_connac_mcu_set_rts_thresh(&dev->mt76, val, 0); 930 mt792x_mutex_release(dev); 931 932 return 0; 933 } 934 935 static int 936 mt7921_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 937 struct ieee80211_ampdu_params *params) 938 { 939 enum ieee80211_ampdu_mlme_action action = params->action; 940 struct mt792x_dev *dev = mt792x_hw_dev(hw); 941 struct ieee80211_sta *sta = params->sta; 942 struct ieee80211_txq *txq = sta->txq[params->tid]; 943 struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv; 944 u16 tid = params->tid; 945 u16 ssn = params->ssn; 946 struct mt76_txq *mtxq; 947 int ret = 0; 948 949 if (!txq) 950 return -EINVAL; 951 952 mtxq = (struct mt76_txq *)txq->drv_priv; 953 954 mt792x_mutex_acquire(dev); 955 switch (action) { 956 case IEEE80211_AMPDU_RX_START: 957 mt76_rx_aggr_start(&dev->mt76, &msta->deflink.wcid, tid, ssn, 958 params->buf_size); 959 mt7921_mcu_uni_rx_ba(dev, params, true); 960 break; 961 case IEEE80211_AMPDU_RX_STOP: 962 mt76_rx_aggr_stop(&dev->mt76, &msta->deflink.wcid, tid); 963 mt7921_mcu_uni_rx_ba(dev, params, false); 964 break; 965 case IEEE80211_AMPDU_TX_OPERATIONAL: 966 mtxq->aggr = true; 967 mtxq->send_bar = false; 968 mt7921_mcu_uni_tx_ba(dev, params, true); 969 break; 970 case IEEE80211_AMPDU_TX_STOP_FLUSH: 971 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 972 mtxq->aggr = false; 973 clear_bit(tid, &msta->deflink.wcid.ampdu_state); 974 mt7921_mcu_uni_tx_ba(dev, params, false); 975 break; 976 case IEEE80211_AMPDU_TX_START: 977 set_bit(tid, &msta->deflink.wcid.ampdu_state); 978 ret = IEEE80211_AMPDU_TX_START_IMMEDIATE; 979 break; 980 case IEEE80211_AMPDU_TX_STOP_CONT: 981 mtxq->aggr = false; 982 clear_bit(tid, &msta->deflink.wcid.ampdu_state); 983 mt7921_mcu_uni_tx_ba(dev, params, false); 984 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 985 break; 986 } 987 mt792x_mutex_release(dev); 988 989 return ret; 990 } 991 992 static int mt7921_sta_state(struct ieee80211_hw *hw, 993 struct ieee80211_vif *vif, 994 struct ieee80211_sta *sta, 995 enum ieee80211_sta_state old_state, 996 enum ieee80211_sta_state new_state) 997 { 998 struct mt792x_dev *dev = mt792x_hw_dev(hw); 999 1000 if (dev->pm.ds_enable) { 1001 mt792x_mutex_acquire(dev); 1002 mt76_connac_sta_state_dp(&dev->mt76, old_state, new_state); 1003 mt792x_mutex_release(dev); 1004 } 1005 1006 return mt76_sta_state(hw, vif, sta, old_state, new_state); 1007 } 1008 1009 void mt7921_scan_work(struct work_struct *work) 1010 { 1011 struct mt792x_phy *phy; 1012 1013 phy = (struct mt792x_phy *)container_of(work, struct mt792x_phy, 1014 scan_work.work); 1015 1016 while (true) { 1017 struct mt76_connac2_mcu_rxd *rxd; 1018 struct sk_buff *skb; 1019 1020 spin_lock_bh(&phy->dev->mt76.lock); 1021 skb = __skb_dequeue(&phy->scan_event_list); 1022 spin_unlock_bh(&phy->dev->mt76.lock); 1023 1024 if (!skb) 1025 break; 1026 1027 rxd = (struct mt76_connac2_mcu_rxd *)skb->data; 1028 if (rxd->eid == MCU_EVENT_SCHED_SCAN_DONE) { 1029 ieee80211_sched_scan_results(phy->mt76->hw); 1030 } else if (test_and_clear_bit(MT76_HW_SCANNING, 1031 &phy->mt76->state)) { 1032 struct cfg80211_scan_info info = { 1033 .aborted = false, 1034 }; 1035 1036 ieee80211_scan_completed(phy->mt76->hw, &info); 1037 } 1038 dev_kfree_skb(skb); 1039 } 1040 } 1041 1042 static int 1043 mt7921_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 1044 struct ieee80211_scan_request *req) 1045 { 1046 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1047 struct mt76_phy *mphy = hw->priv; 1048 int err; 1049 1050 mt792x_mutex_acquire(dev); 1051 err = mt76_connac_mcu_hw_scan(mphy, vif, req); 1052 mt792x_mutex_release(dev); 1053 1054 return err; 1055 } 1056 1057 static void 1058 mt7921_cancel_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif) 1059 { 1060 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1061 struct mt76_phy *mphy = hw->priv; 1062 1063 mt792x_mutex_acquire(dev); 1064 mt76_connac_mcu_cancel_hw_scan(mphy, vif); 1065 mt792x_mutex_release(dev); 1066 } 1067 1068 static int 1069 mt7921_start_sched_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 1070 struct cfg80211_sched_scan_request *req, 1071 struct ieee80211_scan_ies *ies) 1072 { 1073 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1074 struct mt76_phy *mphy = hw->priv; 1075 int err; 1076 1077 mt792x_mutex_acquire(dev); 1078 1079 err = mt76_connac_mcu_sched_scan_req(mphy, vif, req); 1080 if (err < 0) 1081 goto out; 1082 1083 err = mt76_connac_mcu_sched_scan_enable(mphy, vif, true); 1084 out: 1085 mt792x_mutex_release(dev); 1086 1087 return err; 1088 } 1089 1090 static int 1091 mt7921_stop_sched_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif) 1092 { 1093 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1094 struct mt76_phy *mphy = hw->priv; 1095 int err; 1096 1097 mt792x_mutex_acquire(dev); 1098 err = mt76_connac_mcu_sched_scan_enable(mphy, vif, false); 1099 mt792x_mutex_release(dev); 1100 1101 return err; 1102 } 1103 1104 static int 1105 mt7921_set_antenna(struct ieee80211_hw *hw, int radio_idx, 1106 u32 tx_ant, u32 rx_ant) 1107 { 1108 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1109 struct mt792x_phy *phy = mt792x_hw_phy(hw); 1110 int max_nss = hweight8(hw->wiphy->available_antennas_tx); 1111 1112 if (!tx_ant || tx_ant != rx_ant || ffs(tx_ant) > max_nss) 1113 return -EINVAL; 1114 1115 if ((BIT(hweight8(tx_ant)) - 1) != tx_ant) 1116 return -EINVAL; 1117 1118 mt792x_mutex_acquire(dev); 1119 1120 phy->mt76->antenna_mask = tx_ant; 1121 phy->mt76->chainmask = tx_ant; 1122 1123 mt76_set_stream_caps(phy->mt76, true); 1124 mt7921_set_stream_he_caps(phy); 1125 1126 mt792x_mutex_release(dev); 1127 1128 return 0; 1129 } 1130 1131 #ifdef CONFIG_PM 1132 static int mt7921_suspend(struct ieee80211_hw *hw, 1133 struct cfg80211_wowlan *wowlan) 1134 { 1135 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1136 struct mt792x_phy *phy = mt792x_hw_phy(hw); 1137 1138 cancel_delayed_work_sync(&phy->scan_work); 1139 cancel_delayed_work_sync(&phy->mt76->mac_work); 1140 1141 cancel_delayed_work_sync(&dev->pm.ps_work); 1142 mt76_connac_free_pending_tx_skbs(&dev->pm, NULL); 1143 1144 mt792x_mutex_acquire(dev); 1145 1146 clear_bit(MT76_STATE_RUNNING, &phy->mt76->state); 1147 ieee80211_iterate_active_interfaces(hw, 1148 IEEE80211_IFACE_ITER_RESUME_ALL, 1149 mt7921_mcu_set_suspend_iter, 1150 &dev->mphy); 1151 1152 mt792x_mutex_release(dev); 1153 1154 return 0; 1155 } 1156 1157 static int mt7921_resume(struct ieee80211_hw *hw) 1158 { 1159 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1160 struct mt792x_phy *phy = mt792x_hw_phy(hw); 1161 1162 mt792x_mutex_acquire(dev); 1163 1164 set_bit(MT76_STATE_RUNNING, &phy->mt76->state); 1165 ieee80211_iterate_active_interfaces(hw, 1166 IEEE80211_IFACE_ITER_RESUME_ALL, 1167 mt76_connac_mcu_set_suspend_iter, 1168 &dev->mphy); 1169 1170 ieee80211_queue_delayed_work(hw, &phy->mt76->mac_work, 1171 MT792x_WATCHDOG_TIME); 1172 1173 mt792x_mutex_release(dev); 1174 1175 return 0; 1176 } 1177 1178 static void mt7921_set_rekey_data(struct ieee80211_hw *hw, 1179 struct ieee80211_vif *vif, 1180 struct cfg80211_gtk_rekey_data *data) 1181 { 1182 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1183 1184 mt792x_mutex_acquire(dev); 1185 mt76_connac_mcu_update_gtk_rekey(hw, vif, data); 1186 mt792x_mutex_release(dev); 1187 } 1188 #endif /* CONFIG_PM */ 1189 1190 static void mt7921_sta_set_decap_offload(struct ieee80211_hw *hw, 1191 struct ieee80211_vif *vif, 1192 struct ieee80211_sta *sta, 1193 bool enabled) 1194 { 1195 struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv; 1196 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1197 1198 if (!msta->deflink.wcid.sta) 1199 return; 1200 1201 mt792x_mutex_acquire(dev); 1202 1203 if (enabled) 1204 set_bit(MT_WCID_FLAG_HDR_TRANS, &msta->deflink.wcid.flags); 1205 else 1206 clear_bit(MT_WCID_FLAG_HDR_TRANS, &msta->deflink.wcid.flags); 1207 1208 mt76_connac_mcu_sta_update_hdr_trans(&dev->mt76, vif, &msta->deflink.wcid, 1209 MCU_UNI_CMD(STA_REC_UPDATE)); 1210 1211 mt792x_mutex_release(dev); 1212 } 1213 1214 #if IS_ENABLED(CONFIG_IPV6) 1215 static void mt7921_ipv6_addr_change(struct ieee80211_hw *hw, 1216 struct ieee80211_vif *vif, 1217 struct inet6_dev *idev) 1218 { 1219 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 1220 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1221 struct inet6_ifaddr *ifa; 1222 struct in6_addr ns_addrs[IEEE80211_BSS_ARP_ADDR_LIST_LEN]; 1223 struct sk_buff *skb; 1224 u8 i, idx = 0; 1225 1226 struct { 1227 struct { 1228 u8 bss_idx; 1229 u8 pad[3]; 1230 } __packed hdr; 1231 struct mt76_connac_arpns_tlv arpns; 1232 } req_hdr = { 1233 .hdr = { 1234 .bss_idx = mvif->bss_conf.mt76.idx, 1235 }, 1236 .arpns = { 1237 .tag = cpu_to_le16(UNI_OFFLOAD_OFFLOAD_ND), 1238 .mode = 2, /* update */ 1239 .option = 1, /* update only */ 1240 }, 1241 }; 1242 1243 read_lock_bh(&idev->lock); 1244 list_for_each_entry(ifa, &idev->addr_list, if_list) { 1245 if (ifa->flags & IFA_F_TENTATIVE) 1246 continue; 1247 ns_addrs[idx] = ifa->addr; 1248 if (++idx >= IEEE80211_BSS_ARP_ADDR_LIST_LEN) 1249 break; 1250 } 1251 read_unlock_bh(&idev->lock); 1252 1253 if (!idx) 1254 return; 1255 1256 req_hdr.arpns.ips_num = idx; 1257 req_hdr.arpns.len = cpu_to_le16(sizeof(struct mt76_connac_arpns_tlv) 1258 + idx * sizeof(struct in6_addr)); 1259 skb = __mt76_mcu_msg_alloc(&dev->mt76, &req_hdr, 1260 sizeof(req_hdr) + idx * sizeof(struct in6_addr), 1261 sizeof(req_hdr), GFP_ATOMIC); 1262 if (!skb) 1263 return; 1264 1265 for (i = 0; i < idx; i++) 1266 skb_put_data(skb, &ns_addrs[i].in6_u, sizeof(struct in6_addr)); 1267 1268 skb_queue_tail(&dev->ipv6_ns_list, skb); 1269 1270 ieee80211_queue_work(dev->mt76.hw, &dev->ipv6_ns_work); 1271 } 1272 #endif 1273 1274 int mt7921_set_tx_sar_pwr(struct ieee80211_hw *hw, 1275 const struct cfg80211_sar_specs *sar) 1276 { 1277 struct mt76_phy *mphy = hw->priv; 1278 1279 if (sar) { 1280 int err = mt76_init_sar_power(hw, sar); 1281 1282 if (err) 1283 return err; 1284 } 1285 mt792x_init_acpi_sar_power(mt792x_hw_phy(hw), !sar); 1286 1287 return mt76_connac_mcu_set_rate_txpower(mphy); 1288 } 1289 1290 static int mt7921_set_sar_specs(struct ieee80211_hw *hw, 1291 const struct cfg80211_sar_specs *sar) 1292 { 1293 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1294 int err; 1295 1296 mt792x_mutex_acquire(dev); 1297 err = mt7921_mcu_set_clc(dev, dev->mt76.alpha2, 1298 dev->country_ie_env); 1299 if (err < 0) 1300 goto out; 1301 1302 err = mt7921_set_tx_sar_pwr(hw, sar); 1303 out: 1304 mt792x_mutex_release(dev); 1305 1306 return err; 1307 } 1308 1309 static void 1310 mt7921_channel_switch_beacon(struct ieee80211_hw *hw, 1311 struct ieee80211_vif *vif, 1312 struct cfg80211_chan_def *chandef) 1313 { 1314 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1315 1316 mt792x_mutex_acquire(dev); 1317 mt7921_mcu_uni_add_beacon_offload(dev, hw, vif, true); 1318 mt792x_mutex_release(dev); 1319 } 1320 1321 static int 1322 mt7921_start_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 1323 struct ieee80211_bss_conf *link_conf) 1324 { 1325 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 1326 struct mt792x_phy *phy = mt792x_hw_phy(hw); 1327 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1328 int err; 1329 1330 mt792x_mutex_acquire(dev); 1331 1332 err = mt76_connac_mcu_uni_add_bss(phy->mt76, vif, &mvif->sta.deflink.wcid, 1333 true, mvif->bss_conf.mt76.ctx); 1334 if (err) 1335 goto out; 1336 1337 err = mt7921_mcu_set_bss_pm(dev, vif, true); 1338 if (err) 1339 goto out; 1340 1341 err = mt7921_mcu_sta_update(dev, NULL, vif, true, 1342 MT76_STA_INFO_STATE_NONE); 1343 out: 1344 mt792x_mutex_release(dev); 1345 1346 return err; 1347 } 1348 1349 static void 1350 mt7921_stop_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 1351 struct ieee80211_bss_conf *link_conf) 1352 { 1353 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 1354 struct mt792x_phy *phy = mt792x_hw_phy(hw); 1355 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1356 int err; 1357 1358 mt792x_mutex_acquire(dev); 1359 1360 err = mt7921_mcu_set_bss_pm(dev, vif, false); 1361 if (err) 1362 goto out; 1363 1364 mt76_connac_mcu_uni_add_bss(phy->mt76, vif, &mvif->sta.deflink.wcid, false, 1365 mvif->bss_conf.mt76.ctx); 1366 1367 out: 1368 mt792x_mutex_release(dev); 1369 } 1370 1371 static int 1372 mt7921_add_chanctx(struct ieee80211_hw *hw, 1373 struct ieee80211_chanctx_conf *ctx) 1374 { 1375 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1376 1377 dev->new_ctx = ctx; 1378 return 0; 1379 } 1380 1381 static void 1382 mt7921_remove_chanctx(struct ieee80211_hw *hw, 1383 struct ieee80211_chanctx_conf *ctx) 1384 { 1385 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1386 1387 if (dev->new_ctx == ctx) 1388 dev->new_ctx = NULL; 1389 } 1390 1391 static void 1392 mt7921_change_chanctx(struct ieee80211_hw *hw, 1393 struct ieee80211_chanctx_conf *ctx, 1394 u32 changed) 1395 { 1396 struct mt792x_chanctx *mctx = (struct mt792x_chanctx *)ctx->drv_priv; 1397 struct mt792x_phy *phy = mt792x_hw_phy(hw); 1398 struct ieee80211_vif *vif; 1399 struct mt792x_vif *mvif; 1400 1401 if (!mctx->bss_conf) 1402 return; 1403 1404 mvif = container_of(mctx->bss_conf, struct mt792x_vif, bss_conf); 1405 vif = container_of((void *)mvif, struct ieee80211_vif, drv_priv); 1406 1407 mt792x_mutex_acquire(phy->dev); 1408 if (vif->type == NL80211_IFTYPE_MONITOR) 1409 mt7921_mcu_config_sniffer(mvif, ctx); 1410 else 1411 mt76_connac_mcu_uni_set_chctx(mvif->phy->mt76, &mvif->bss_conf.mt76, ctx); 1412 mt792x_mutex_release(phy->dev); 1413 } 1414 1415 static void mt7921_mgd_prepare_tx(struct ieee80211_hw *hw, 1416 struct ieee80211_vif *vif, 1417 struct ieee80211_prep_tx_info *info) 1418 { 1419 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 1420 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1421 u16 duration = info->duration ? info->duration : 1422 jiffies_to_msecs(HZ); 1423 1424 mt792x_mutex_acquire(dev); 1425 mt7921_set_roc(mvif->phy, mvif, mvif->bss_conf.mt76.ctx->def.chan, duration, 1426 MT7921_ROC_REQ_JOIN); 1427 mt792x_mutex_release(dev); 1428 } 1429 1430 static void mt7921_mgd_complete_tx(struct ieee80211_hw *hw, 1431 struct ieee80211_vif *vif, 1432 struct ieee80211_prep_tx_info *info) 1433 { 1434 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 1435 1436 mt7921_abort_roc(mvif->phy, mvif); 1437 } 1438 1439 static int mt7921_switch_vif_chanctx(struct ieee80211_hw *hw, 1440 struct ieee80211_vif_chanctx_switch *vifs, 1441 int n_vifs, 1442 enum ieee80211_chanctx_switch_mode mode) 1443 { 1444 return mt792x_assign_vif_chanctx(hw, vifs->vif, vifs->link_conf, 1445 vifs->new_ctx); 1446 } 1447 1448 void mt7921_csa_work(struct work_struct *work) 1449 { 1450 struct mt792x_vif *mvif; 1451 struct mt792x_dev *dev; 1452 struct ieee80211_vif *vif; 1453 int ret; 1454 1455 mvif = (struct mt792x_vif *)container_of(work, struct mt792x_vif, 1456 csa_work); 1457 dev = mvif->phy->dev; 1458 vif = container_of((void *)mvif, struct ieee80211_vif, drv_priv); 1459 1460 mt792x_mutex_acquire(dev); 1461 ret = mt76_connac_mcu_uni_set_chctx(mvif->phy->mt76, &mvif->bss_conf.mt76, 1462 dev->new_ctx); 1463 mt792x_mutex_release(dev); 1464 1465 ieee80211_chswitch_done(vif, !ret, 0); 1466 } 1467 1468 static int mt7921_pre_channel_switch(struct ieee80211_hw *hw, 1469 struct ieee80211_vif *vif, 1470 struct ieee80211_channel_switch *chsw) 1471 { 1472 if (vif->type != NL80211_IFTYPE_STATION || !vif->cfg.assoc) 1473 return -EOPNOTSUPP; 1474 1475 if (!cfg80211_chandef_usable(hw->wiphy, &chsw->chandef, 1476 IEEE80211_CHAN_DISABLED)) 1477 return -EOPNOTSUPP; 1478 1479 return 0; 1480 } 1481 1482 static void mt7921_channel_switch(struct ieee80211_hw *hw, 1483 struct ieee80211_vif *vif, 1484 struct ieee80211_channel_switch *chsw) 1485 { 1486 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 1487 u16 beacon_interval = vif->bss_conf.beacon_int; 1488 1489 mvif->csa_timer.expires = TU_TO_EXP_TIME(beacon_interval * chsw->count); 1490 add_timer(&mvif->csa_timer); 1491 } 1492 1493 static void mt7921_abort_channel_switch(struct ieee80211_hw *hw, 1494 struct ieee80211_vif *vif, 1495 struct ieee80211_bss_conf *link_conf) 1496 { 1497 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 1498 1499 timer_delete_sync(&mvif->csa_timer); 1500 cancel_work_sync(&mvif->csa_work); 1501 } 1502 1503 static void mt7921_channel_switch_rx_beacon(struct ieee80211_hw *hw, 1504 struct ieee80211_vif *vif, 1505 struct ieee80211_channel_switch *chsw) 1506 { 1507 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1508 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 1509 u16 beacon_interval = vif->bss_conf.beacon_int; 1510 1511 if (cfg80211_chandef_identical(&chsw->chandef, 1512 &dev->new_ctx->def) && 1513 chsw->count) { 1514 mod_timer(&mvif->csa_timer, 1515 TU_TO_EXP_TIME(beacon_interval * chsw->count)); 1516 } 1517 } 1518 1519 static void mt7921_rfkill_poll(struct ieee80211_hw *hw) 1520 { 1521 struct mt792x_phy *phy = mt792x_hw_phy(hw); 1522 int ret = 0; 1523 1524 mt792x_mutex_acquire(phy->dev); 1525 ret = mt7921_mcu_wf_rf_pin_ctrl(phy, WF_RF_PIN_POLL); 1526 mt792x_mutex_release(phy->dev); 1527 1528 wiphy_rfkill_set_hw_state(hw->wiphy, ret ? false : true); 1529 } 1530 1531 const struct ieee80211_ops mt7921_ops = { 1532 .tx = mt792x_tx, 1533 .start = mt7921_start, 1534 .stop = mt7921_stop, 1535 .add_interface = mt7921_add_interface, 1536 .remove_interface = mt792x_remove_interface, 1537 .config = mt7921_config, 1538 .conf_tx = mt792x_conf_tx, 1539 .configure_filter = mt7921_configure_filter, 1540 .bss_info_changed = mt7921_bss_info_changed, 1541 .start_ap = mt7921_start_ap, 1542 .stop_ap = mt7921_stop_ap, 1543 .sta_state = mt7921_sta_state, 1544 .sta_pre_rcu_remove = mt76_sta_pre_rcu_remove, 1545 .set_key = mt7921_set_key, 1546 .sta_set_decap_offload = mt7921_sta_set_decap_offload, 1547 #if IS_ENABLED(CONFIG_IPV6) 1548 .ipv6_addr_change = mt7921_ipv6_addr_change, 1549 #endif /* CONFIG_IPV6 */ 1550 .ampdu_action = mt7921_ampdu_action, 1551 .set_rts_threshold = mt7921_set_rts_threshold, 1552 .wake_tx_queue = mt76_wake_tx_queue, 1553 .release_buffered_frames = mt76_release_buffered_frames, 1554 .channel_switch_beacon = mt7921_channel_switch_beacon, 1555 .get_txpower = mt76_get_txpower, 1556 .get_stats = mt792x_get_stats, 1557 .get_et_sset_count = mt792x_get_et_sset_count, 1558 .get_et_strings = mt792x_get_et_strings, 1559 .get_et_stats = mt792x_get_et_stats, 1560 .get_tsf = mt792x_get_tsf, 1561 .set_tsf = mt792x_set_tsf, 1562 .get_survey = mt76_get_survey, 1563 .get_antenna = mt76_get_antenna, 1564 .set_antenna = mt7921_set_antenna, 1565 .set_coverage_class = mt792x_set_coverage_class, 1566 .hw_scan = mt7921_hw_scan, 1567 .cancel_hw_scan = mt7921_cancel_hw_scan, 1568 .sta_statistics = mt792x_sta_statistics, 1569 .sched_scan_start = mt7921_start_sched_scan, 1570 .sched_scan_stop = mt7921_stop_sched_scan, 1571 CFG80211_TESTMODE_CMD(mt7921_testmode_cmd) 1572 CFG80211_TESTMODE_DUMP(mt7921_testmode_dump) 1573 #ifdef CONFIG_PM 1574 .suspend = mt7921_suspend, 1575 .resume = mt7921_resume, 1576 .set_wakeup = mt792x_set_wakeup, 1577 .set_rekey_data = mt7921_set_rekey_data, 1578 #endif /* CONFIG_PM */ 1579 .flush = mt792x_flush, 1580 .set_sar_specs = mt7921_set_sar_specs, 1581 .rfkill_poll = mt7921_rfkill_poll, 1582 .remain_on_channel = mt7921_remain_on_channel, 1583 .cancel_remain_on_channel = mt7921_cancel_remain_on_channel, 1584 .add_chanctx = mt7921_add_chanctx, 1585 .remove_chanctx = mt7921_remove_chanctx, 1586 .change_chanctx = mt7921_change_chanctx, 1587 .assign_vif_chanctx = mt792x_assign_vif_chanctx, 1588 .unassign_vif_chanctx = mt792x_unassign_vif_chanctx, 1589 .mgd_prepare_tx = mt7921_mgd_prepare_tx, 1590 .mgd_complete_tx = mt7921_mgd_complete_tx, 1591 .switch_vif_chanctx = mt7921_switch_vif_chanctx, 1592 .pre_channel_switch = mt7921_pre_channel_switch, 1593 .channel_switch = mt7921_channel_switch, 1594 .abort_channel_switch = mt7921_abort_channel_switch, 1595 .channel_switch_rx_beacon = mt7921_channel_switch_rx_beacon, 1596 }; 1597 EXPORT_SYMBOL_GPL(mt7921_ops); 1598 1599 MODULE_DESCRIPTION("MediaTek MT7921 core driver"); 1600 MODULE_LICENSE("Dual BSD/GPL"); 1601 MODULE_AUTHOR("Sean Wang <sean.wang@mediatek.com>"); 1602