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); 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 del_timer_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 del_timer_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; 814 815 ret = mt76_connac_pm_wake(&dev->mphy, &dev->pm); 816 if (ret) 817 return ret; 818 819 if (vif->type == NL80211_IFTYPE_STATION) 820 mvif->wep_sta = msta; 821 822 mt7921_mac_wtbl_update(dev, idx, 823 MT_WTBL_UPDATE_ADM_COUNT_CLEAR); 824 825 ret = mt7921_mcu_sta_update(dev, sta, vif, true, 826 MT76_STA_INFO_STATE_NONE); 827 if (ret) 828 return ret; 829 830 mt7921_regd_set_6ghz_power_type(vif, true); 831 832 mt76_connac_power_save_sched(&dev->mphy, &dev->pm); 833 834 return 0; 835 } 836 EXPORT_SYMBOL_GPL(mt7921_mac_sta_add); 837 838 int mt7921_mac_sta_event(struct mt76_dev *mdev, struct ieee80211_vif *vif, 839 struct ieee80211_sta *sta, enum mt76_sta_event ev) 840 { 841 struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76); 842 struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv; 843 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 844 845 if (ev != MT76_STA_EVENT_ASSOC) 846 return 0; 847 848 mt792x_mutex_acquire(dev); 849 850 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 851 mt76_connac_mcu_uni_add_bss(&dev->mphy, vif, &mvif->sta.deflink.wcid, 852 true, mvif->bss_conf.mt76.ctx); 853 854 ewma_avg_signal_init(&msta->deflink.avg_ack_signal); 855 856 mt7921_mac_wtbl_update(dev, msta->deflink.wcid.idx, 857 MT_WTBL_UPDATE_ADM_COUNT_CLEAR); 858 memset(msta->deflink.airtime_ac, 0, sizeof(msta->deflink.airtime_ac)); 859 860 mt7921_mcu_sta_update(dev, sta, vif, true, MT76_STA_INFO_STATE_ASSOC); 861 862 mt792x_mutex_release(dev); 863 864 return 0; 865 } 866 EXPORT_SYMBOL_GPL(mt7921_mac_sta_event); 867 868 void mt7921_mac_sta_remove(struct mt76_dev *mdev, struct ieee80211_vif *vif, 869 struct ieee80211_sta *sta) 870 { 871 struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76); 872 struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv; 873 874 mt7921_roc_abort_sync(dev); 875 mt76_connac_free_pending_tx_skbs(&dev->pm, &msta->deflink.wcid); 876 mt76_connac_pm_wake(&dev->mphy, &dev->pm); 877 878 mt7921_mcu_sta_update(dev, sta, vif, false, MT76_STA_INFO_STATE_NONE); 879 mt7921_mac_wtbl_update(dev, msta->deflink.wcid.idx, 880 MT_WTBL_UPDATE_ADM_COUNT_CLEAR); 881 882 if (vif->type == NL80211_IFTYPE_STATION) { 883 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 884 885 mvif->wep_sta = NULL; 886 ewma_rssi_init(&mvif->bss_conf.rssi); 887 if (!sta->tdls) 888 mt76_connac_mcu_uni_add_bss(&dev->mphy, vif, 889 &mvif->sta.deflink.wcid, false, 890 mvif->bss_conf.mt76.ctx); 891 } 892 893 spin_lock_bh(&dev->mt76.sta_poll_lock); 894 if (!list_empty(&msta->deflink.wcid.poll_list)) 895 list_del_init(&msta->deflink.wcid.poll_list); 896 spin_unlock_bh(&dev->mt76.sta_poll_lock); 897 898 mt7921_regd_set_6ghz_power_type(vif, false); 899 900 mt76_connac_power_save_sched(&dev->mphy, &dev->pm); 901 } 902 EXPORT_SYMBOL_GPL(mt7921_mac_sta_remove); 903 904 static int mt7921_set_rts_threshold(struct ieee80211_hw *hw, u32 val) 905 { 906 struct mt792x_dev *dev = mt792x_hw_dev(hw); 907 908 mt792x_mutex_acquire(dev); 909 mt76_connac_mcu_set_rts_thresh(&dev->mt76, val, 0); 910 mt792x_mutex_release(dev); 911 912 return 0; 913 } 914 915 static int 916 mt7921_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 917 struct ieee80211_ampdu_params *params) 918 { 919 enum ieee80211_ampdu_mlme_action action = params->action; 920 struct mt792x_dev *dev = mt792x_hw_dev(hw); 921 struct ieee80211_sta *sta = params->sta; 922 struct ieee80211_txq *txq = sta->txq[params->tid]; 923 struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv; 924 u16 tid = params->tid; 925 u16 ssn = params->ssn; 926 struct mt76_txq *mtxq; 927 int ret = 0; 928 929 if (!txq) 930 return -EINVAL; 931 932 mtxq = (struct mt76_txq *)txq->drv_priv; 933 934 mt792x_mutex_acquire(dev); 935 switch (action) { 936 case IEEE80211_AMPDU_RX_START: 937 mt76_rx_aggr_start(&dev->mt76, &msta->deflink.wcid, tid, ssn, 938 params->buf_size); 939 mt7921_mcu_uni_rx_ba(dev, params, true); 940 break; 941 case IEEE80211_AMPDU_RX_STOP: 942 mt76_rx_aggr_stop(&dev->mt76, &msta->deflink.wcid, tid); 943 mt7921_mcu_uni_rx_ba(dev, params, false); 944 break; 945 case IEEE80211_AMPDU_TX_OPERATIONAL: 946 mtxq->aggr = true; 947 mtxq->send_bar = false; 948 mt7921_mcu_uni_tx_ba(dev, params, true); 949 break; 950 case IEEE80211_AMPDU_TX_STOP_FLUSH: 951 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 952 mtxq->aggr = false; 953 clear_bit(tid, &msta->deflink.wcid.ampdu_state); 954 mt7921_mcu_uni_tx_ba(dev, params, false); 955 break; 956 case IEEE80211_AMPDU_TX_START: 957 set_bit(tid, &msta->deflink.wcid.ampdu_state); 958 ret = IEEE80211_AMPDU_TX_START_IMMEDIATE; 959 break; 960 case IEEE80211_AMPDU_TX_STOP_CONT: 961 mtxq->aggr = false; 962 clear_bit(tid, &msta->deflink.wcid.ampdu_state); 963 mt7921_mcu_uni_tx_ba(dev, params, false); 964 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 965 break; 966 } 967 mt792x_mutex_release(dev); 968 969 return ret; 970 } 971 972 static int mt7921_sta_state(struct ieee80211_hw *hw, 973 struct ieee80211_vif *vif, 974 struct ieee80211_sta *sta, 975 enum ieee80211_sta_state old_state, 976 enum ieee80211_sta_state new_state) 977 { 978 struct mt792x_dev *dev = mt792x_hw_dev(hw); 979 980 if (dev->pm.ds_enable) { 981 mt792x_mutex_acquire(dev); 982 mt76_connac_sta_state_dp(&dev->mt76, old_state, new_state); 983 mt792x_mutex_release(dev); 984 } 985 986 return mt76_sta_state(hw, vif, sta, old_state, new_state); 987 } 988 989 void mt7921_scan_work(struct work_struct *work) 990 { 991 struct mt792x_phy *phy; 992 993 phy = (struct mt792x_phy *)container_of(work, struct mt792x_phy, 994 scan_work.work); 995 996 while (true) { 997 struct mt76_connac2_mcu_rxd *rxd; 998 struct sk_buff *skb; 999 1000 spin_lock_bh(&phy->dev->mt76.lock); 1001 skb = __skb_dequeue(&phy->scan_event_list); 1002 spin_unlock_bh(&phy->dev->mt76.lock); 1003 1004 if (!skb) 1005 break; 1006 1007 rxd = (struct mt76_connac2_mcu_rxd *)skb->data; 1008 if (rxd->eid == MCU_EVENT_SCHED_SCAN_DONE) { 1009 ieee80211_sched_scan_results(phy->mt76->hw); 1010 } else if (test_and_clear_bit(MT76_HW_SCANNING, 1011 &phy->mt76->state)) { 1012 struct cfg80211_scan_info info = { 1013 .aborted = false, 1014 }; 1015 1016 ieee80211_scan_completed(phy->mt76->hw, &info); 1017 } 1018 dev_kfree_skb(skb); 1019 } 1020 } 1021 1022 static int 1023 mt7921_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 1024 struct ieee80211_scan_request *req) 1025 { 1026 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1027 struct mt76_phy *mphy = hw->priv; 1028 int err; 1029 1030 mt792x_mutex_acquire(dev); 1031 err = mt76_connac_mcu_hw_scan(mphy, vif, req); 1032 mt792x_mutex_release(dev); 1033 1034 return err; 1035 } 1036 1037 static void 1038 mt7921_cancel_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif) 1039 { 1040 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1041 struct mt76_phy *mphy = hw->priv; 1042 1043 mt792x_mutex_acquire(dev); 1044 mt76_connac_mcu_cancel_hw_scan(mphy, vif); 1045 mt792x_mutex_release(dev); 1046 } 1047 1048 static int 1049 mt7921_start_sched_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 1050 struct cfg80211_sched_scan_request *req, 1051 struct ieee80211_scan_ies *ies) 1052 { 1053 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1054 struct mt76_phy *mphy = hw->priv; 1055 int err; 1056 1057 mt792x_mutex_acquire(dev); 1058 1059 err = mt76_connac_mcu_sched_scan_req(mphy, vif, req); 1060 if (err < 0) 1061 goto out; 1062 1063 err = mt76_connac_mcu_sched_scan_enable(mphy, vif, true); 1064 out: 1065 mt792x_mutex_release(dev); 1066 1067 return err; 1068 } 1069 1070 static int 1071 mt7921_stop_sched_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif) 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 err = mt76_connac_mcu_sched_scan_enable(mphy, vif, false); 1079 mt792x_mutex_release(dev); 1080 1081 return err; 1082 } 1083 1084 static int 1085 mt7921_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant) 1086 { 1087 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1088 struct mt792x_phy *phy = mt792x_hw_phy(hw); 1089 int max_nss = hweight8(hw->wiphy->available_antennas_tx); 1090 1091 if (!tx_ant || tx_ant != rx_ant || ffs(tx_ant) > max_nss) 1092 return -EINVAL; 1093 1094 if ((BIT(hweight8(tx_ant)) - 1) != tx_ant) 1095 return -EINVAL; 1096 1097 mt792x_mutex_acquire(dev); 1098 1099 phy->mt76->antenna_mask = tx_ant; 1100 phy->mt76->chainmask = tx_ant; 1101 1102 mt76_set_stream_caps(phy->mt76, true); 1103 mt7921_set_stream_he_caps(phy); 1104 1105 mt792x_mutex_release(dev); 1106 1107 return 0; 1108 } 1109 1110 #ifdef CONFIG_PM 1111 static int mt7921_suspend(struct ieee80211_hw *hw, 1112 struct cfg80211_wowlan *wowlan) 1113 { 1114 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1115 struct mt792x_phy *phy = mt792x_hw_phy(hw); 1116 1117 cancel_delayed_work_sync(&phy->scan_work); 1118 cancel_delayed_work_sync(&phy->mt76->mac_work); 1119 1120 cancel_delayed_work_sync(&dev->pm.ps_work); 1121 mt76_connac_free_pending_tx_skbs(&dev->pm, NULL); 1122 1123 mt792x_mutex_acquire(dev); 1124 1125 clear_bit(MT76_STATE_RUNNING, &phy->mt76->state); 1126 ieee80211_iterate_active_interfaces(hw, 1127 IEEE80211_IFACE_ITER_RESUME_ALL, 1128 mt7921_mcu_set_suspend_iter, 1129 &dev->mphy); 1130 1131 mt792x_mutex_release(dev); 1132 1133 return 0; 1134 } 1135 1136 static int mt7921_resume(struct ieee80211_hw *hw) 1137 { 1138 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1139 struct mt792x_phy *phy = mt792x_hw_phy(hw); 1140 1141 mt792x_mutex_acquire(dev); 1142 1143 set_bit(MT76_STATE_RUNNING, &phy->mt76->state); 1144 ieee80211_iterate_active_interfaces(hw, 1145 IEEE80211_IFACE_ITER_RESUME_ALL, 1146 mt76_connac_mcu_set_suspend_iter, 1147 &dev->mphy); 1148 1149 ieee80211_queue_delayed_work(hw, &phy->mt76->mac_work, 1150 MT792x_WATCHDOG_TIME); 1151 1152 mt792x_mutex_release(dev); 1153 1154 return 0; 1155 } 1156 1157 static void mt7921_set_rekey_data(struct ieee80211_hw *hw, 1158 struct ieee80211_vif *vif, 1159 struct cfg80211_gtk_rekey_data *data) 1160 { 1161 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1162 1163 mt792x_mutex_acquire(dev); 1164 mt76_connac_mcu_update_gtk_rekey(hw, vif, data); 1165 mt792x_mutex_release(dev); 1166 } 1167 #endif /* CONFIG_PM */ 1168 1169 static void mt7921_sta_set_decap_offload(struct ieee80211_hw *hw, 1170 struct ieee80211_vif *vif, 1171 struct ieee80211_sta *sta, 1172 bool enabled) 1173 { 1174 struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv; 1175 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1176 1177 mt792x_mutex_acquire(dev); 1178 1179 if (enabled) 1180 set_bit(MT_WCID_FLAG_HDR_TRANS, &msta->deflink.wcid.flags); 1181 else 1182 clear_bit(MT_WCID_FLAG_HDR_TRANS, &msta->deflink.wcid.flags); 1183 1184 mt76_connac_mcu_sta_update_hdr_trans(&dev->mt76, vif, &msta->deflink.wcid, 1185 MCU_UNI_CMD(STA_REC_UPDATE)); 1186 1187 mt792x_mutex_release(dev); 1188 } 1189 1190 #if IS_ENABLED(CONFIG_IPV6) 1191 static void mt7921_ipv6_addr_change(struct ieee80211_hw *hw, 1192 struct ieee80211_vif *vif, 1193 struct inet6_dev *idev) 1194 { 1195 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 1196 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1197 struct inet6_ifaddr *ifa; 1198 struct in6_addr ns_addrs[IEEE80211_BSS_ARP_ADDR_LIST_LEN]; 1199 struct sk_buff *skb; 1200 u8 i, idx = 0; 1201 1202 struct { 1203 struct { 1204 u8 bss_idx; 1205 u8 pad[3]; 1206 } __packed hdr; 1207 struct mt76_connac_arpns_tlv arpns; 1208 } req_hdr = { 1209 .hdr = { 1210 .bss_idx = mvif->bss_conf.mt76.idx, 1211 }, 1212 .arpns = { 1213 .tag = cpu_to_le16(UNI_OFFLOAD_OFFLOAD_ND), 1214 .mode = 2, /* update */ 1215 .option = 1, /* update only */ 1216 }, 1217 }; 1218 1219 read_lock_bh(&idev->lock); 1220 list_for_each_entry(ifa, &idev->addr_list, if_list) { 1221 if (ifa->flags & IFA_F_TENTATIVE) 1222 continue; 1223 ns_addrs[idx] = ifa->addr; 1224 if (++idx >= IEEE80211_BSS_ARP_ADDR_LIST_LEN) 1225 break; 1226 } 1227 read_unlock_bh(&idev->lock); 1228 1229 if (!idx) 1230 return; 1231 1232 req_hdr.arpns.ips_num = idx; 1233 req_hdr.arpns.len = cpu_to_le16(sizeof(struct mt76_connac_arpns_tlv) 1234 + idx * sizeof(struct in6_addr)); 1235 skb = __mt76_mcu_msg_alloc(&dev->mt76, &req_hdr, 1236 sizeof(req_hdr) + idx * sizeof(struct in6_addr), 1237 sizeof(req_hdr), GFP_ATOMIC); 1238 if (!skb) 1239 return; 1240 1241 for (i = 0; i < idx; i++) 1242 skb_put_data(skb, &ns_addrs[i].in6_u, sizeof(struct in6_addr)); 1243 1244 skb_queue_tail(&dev->ipv6_ns_list, skb); 1245 1246 ieee80211_queue_work(dev->mt76.hw, &dev->ipv6_ns_work); 1247 } 1248 #endif 1249 1250 int mt7921_set_tx_sar_pwr(struct ieee80211_hw *hw, 1251 const struct cfg80211_sar_specs *sar) 1252 { 1253 struct mt76_phy *mphy = hw->priv; 1254 1255 if (sar) { 1256 int err = mt76_init_sar_power(hw, sar); 1257 1258 if (err) 1259 return err; 1260 } 1261 mt792x_init_acpi_sar_power(mt792x_hw_phy(hw), !sar); 1262 1263 return mt76_connac_mcu_set_rate_txpower(mphy); 1264 } 1265 1266 static int mt7921_set_sar_specs(struct ieee80211_hw *hw, 1267 const struct cfg80211_sar_specs *sar) 1268 { 1269 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1270 int err; 1271 1272 mt792x_mutex_acquire(dev); 1273 err = mt7921_mcu_set_clc(dev, dev->mt76.alpha2, 1274 dev->country_ie_env); 1275 if (err < 0) 1276 goto out; 1277 1278 err = mt7921_set_tx_sar_pwr(hw, sar); 1279 out: 1280 mt792x_mutex_release(dev); 1281 1282 return err; 1283 } 1284 1285 static void 1286 mt7921_channel_switch_beacon(struct ieee80211_hw *hw, 1287 struct ieee80211_vif *vif, 1288 struct cfg80211_chan_def *chandef) 1289 { 1290 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1291 1292 mt792x_mutex_acquire(dev); 1293 mt7921_mcu_uni_add_beacon_offload(dev, hw, vif, true); 1294 mt792x_mutex_release(dev); 1295 } 1296 1297 static int 1298 mt7921_start_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 1299 struct ieee80211_bss_conf *link_conf) 1300 { 1301 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 1302 struct mt792x_phy *phy = mt792x_hw_phy(hw); 1303 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1304 int err; 1305 1306 mt792x_mutex_acquire(dev); 1307 1308 err = mt76_connac_mcu_uni_add_bss(phy->mt76, vif, &mvif->sta.deflink.wcid, 1309 true, mvif->bss_conf.mt76.ctx); 1310 if (err) 1311 goto out; 1312 1313 err = mt7921_mcu_set_bss_pm(dev, vif, true); 1314 if (err) 1315 goto out; 1316 1317 err = mt7921_mcu_sta_update(dev, NULL, vif, true, 1318 MT76_STA_INFO_STATE_NONE); 1319 out: 1320 mt792x_mutex_release(dev); 1321 1322 return err; 1323 } 1324 1325 static void 1326 mt7921_stop_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 1327 struct ieee80211_bss_conf *link_conf) 1328 { 1329 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 1330 struct mt792x_phy *phy = mt792x_hw_phy(hw); 1331 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1332 int err; 1333 1334 mt792x_mutex_acquire(dev); 1335 1336 err = mt7921_mcu_set_bss_pm(dev, vif, false); 1337 if (err) 1338 goto out; 1339 1340 mt76_connac_mcu_uni_add_bss(phy->mt76, vif, &mvif->sta.deflink.wcid, false, 1341 mvif->bss_conf.mt76.ctx); 1342 1343 out: 1344 mt792x_mutex_release(dev); 1345 } 1346 1347 static int 1348 mt7921_add_chanctx(struct ieee80211_hw *hw, 1349 struct ieee80211_chanctx_conf *ctx) 1350 { 1351 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1352 1353 dev->new_ctx = ctx; 1354 return 0; 1355 } 1356 1357 static void 1358 mt7921_remove_chanctx(struct ieee80211_hw *hw, 1359 struct ieee80211_chanctx_conf *ctx) 1360 { 1361 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1362 1363 if (dev->new_ctx == ctx) 1364 dev->new_ctx = NULL; 1365 } 1366 1367 static void 1368 mt7921_change_chanctx(struct ieee80211_hw *hw, 1369 struct ieee80211_chanctx_conf *ctx, 1370 u32 changed) 1371 { 1372 struct mt792x_chanctx *mctx = (struct mt792x_chanctx *)ctx->drv_priv; 1373 struct mt792x_phy *phy = mt792x_hw_phy(hw); 1374 struct ieee80211_vif *vif; 1375 struct mt792x_vif *mvif; 1376 1377 if (!mctx->bss_conf) 1378 return; 1379 1380 mvif = container_of(mctx->bss_conf, struct mt792x_vif, bss_conf); 1381 vif = container_of((void *)mvif, struct ieee80211_vif, drv_priv); 1382 1383 mt792x_mutex_acquire(phy->dev); 1384 if (vif->type == NL80211_IFTYPE_MONITOR) 1385 mt7921_mcu_config_sniffer(mvif, ctx); 1386 else 1387 mt76_connac_mcu_uni_set_chctx(mvif->phy->mt76, &mvif->bss_conf.mt76, ctx); 1388 mt792x_mutex_release(phy->dev); 1389 } 1390 1391 static void mt7921_mgd_prepare_tx(struct ieee80211_hw *hw, 1392 struct ieee80211_vif *vif, 1393 struct ieee80211_prep_tx_info *info) 1394 { 1395 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 1396 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1397 u16 duration = info->duration ? info->duration : 1398 jiffies_to_msecs(HZ); 1399 1400 mt792x_mutex_acquire(dev); 1401 mt7921_set_roc(mvif->phy, mvif, mvif->bss_conf.mt76.ctx->def.chan, duration, 1402 MT7921_ROC_REQ_JOIN); 1403 mt792x_mutex_release(dev); 1404 } 1405 1406 static void mt7921_mgd_complete_tx(struct ieee80211_hw *hw, 1407 struct ieee80211_vif *vif, 1408 struct ieee80211_prep_tx_info *info) 1409 { 1410 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 1411 1412 mt7921_abort_roc(mvif->phy, mvif); 1413 } 1414 1415 static int mt7921_switch_vif_chanctx(struct ieee80211_hw *hw, 1416 struct ieee80211_vif_chanctx_switch *vifs, 1417 int n_vifs, 1418 enum ieee80211_chanctx_switch_mode mode) 1419 { 1420 return mt792x_assign_vif_chanctx(hw, vifs->vif, vifs->link_conf, 1421 vifs->new_ctx); 1422 } 1423 1424 void mt7921_csa_work(struct work_struct *work) 1425 { 1426 struct mt792x_vif *mvif; 1427 struct mt792x_dev *dev; 1428 struct ieee80211_vif *vif; 1429 int ret; 1430 1431 mvif = (struct mt792x_vif *)container_of(work, struct mt792x_vif, 1432 csa_work); 1433 dev = mvif->phy->dev; 1434 vif = container_of((void *)mvif, struct ieee80211_vif, drv_priv); 1435 1436 mt792x_mutex_acquire(dev); 1437 ret = mt76_connac_mcu_uni_set_chctx(mvif->phy->mt76, &mvif->bss_conf.mt76, 1438 dev->new_ctx); 1439 mt792x_mutex_release(dev); 1440 1441 ieee80211_chswitch_done(vif, !ret, 0); 1442 } 1443 1444 static int mt7921_pre_channel_switch(struct ieee80211_hw *hw, 1445 struct ieee80211_vif *vif, 1446 struct ieee80211_channel_switch *chsw) 1447 { 1448 if (vif->type != NL80211_IFTYPE_STATION || !vif->cfg.assoc) 1449 return -EOPNOTSUPP; 1450 1451 /* Avoid beacon loss due to the CAC(Channel Availability Check) time 1452 * of the AP. 1453 */ 1454 if (!cfg80211_chandef_usable(hw->wiphy, &chsw->chandef, 1455 IEEE80211_CHAN_RADAR)) 1456 return -EOPNOTSUPP; 1457 1458 return 0; 1459 } 1460 1461 static void mt7921_channel_switch(struct ieee80211_hw *hw, 1462 struct ieee80211_vif *vif, 1463 struct ieee80211_channel_switch *chsw) 1464 { 1465 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 1466 u16 beacon_interval = vif->bss_conf.beacon_int; 1467 1468 mvif->csa_timer.expires = TU_TO_EXP_TIME(beacon_interval * chsw->count); 1469 add_timer(&mvif->csa_timer); 1470 } 1471 1472 static void mt7921_abort_channel_switch(struct ieee80211_hw *hw, 1473 struct ieee80211_vif *vif, 1474 struct ieee80211_bss_conf *link_conf) 1475 { 1476 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 1477 1478 del_timer_sync(&mvif->csa_timer); 1479 cancel_work_sync(&mvif->csa_work); 1480 } 1481 1482 static void mt7921_channel_switch_rx_beacon(struct ieee80211_hw *hw, 1483 struct ieee80211_vif *vif, 1484 struct ieee80211_channel_switch *chsw) 1485 { 1486 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1487 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 1488 u16 beacon_interval = vif->bss_conf.beacon_int; 1489 1490 if (cfg80211_chandef_identical(&chsw->chandef, 1491 &dev->new_ctx->def) && 1492 chsw->count) { 1493 mod_timer(&mvif->csa_timer, 1494 TU_TO_EXP_TIME(beacon_interval * chsw->count)); 1495 } 1496 } 1497 1498 static void mt7921_rfkill_poll(struct ieee80211_hw *hw) 1499 { 1500 struct mt792x_phy *phy = mt792x_hw_phy(hw); 1501 int ret = 0; 1502 1503 mt792x_mutex_acquire(phy->dev); 1504 ret = mt7921_mcu_wf_rf_pin_ctrl(phy, WF_RF_PIN_POLL); 1505 mt792x_mutex_release(phy->dev); 1506 1507 wiphy_rfkill_set_hw_state(hw->wiphy, ret ? false : true); 1508 } 1509 1510 const struct ieee80211_ops mt7921_ops = { 1511 .tx = mt792x_tx, 1512 .start = mt7921_start, 1513 .stop = mt7921_stop, 1514 .add_interface = mt7921_add_interface, 1515 .remove_interface = mt792x_remove_interface, 1516 .config = mt7921_config, 1517 .conf_tx = mt792x_conf_tx, 1518 .configure_filter = mt7921_configure_filter, 1519 .bss_info_changed = mt7921_bss_info_changed, 1520 .start_ap = mt7921_start_ap, 1521 .stop_ap = mt7921_stop_ap, 1522 .sta_state = mt7921_sta_state, 1523 .sta_pre_rcu_remove = mt76_sta_pre_rcu_remove, 1524 .set_key = mt7921_set_key, 1525 .sta_set_decap_offload = mt7921_sta_set_decap_offload, 1526 #if IS_ENABLED(CONFIG_IPV6) 1527 .ipv6_addr_change = mt7921_ipv6_addr_change, 1528 #endif /* CONFIG_IPV6 */ 1529 .ampdu_action = mt7921_ampdu_action, 1530 .set_rts_threshold = mt7921_set_rts_threshold, 1531 .wake_tx_queue = mt76_wake_tx_queue, 1532 .release_buffered_frames = mt76_release_buffered_frames, 1533 .channel_switch_beacon = mt7921_channel_switch_beacon, 1534 .get_txpower = mt76_get_txpower, 1535 .get_stats = mt792x_get_stats, 1536 .get_et_sset_count = mt792x_get_et_sset_count, 1537 .get_et_strings = mt792x_get_et_strings, 1538 .get_et_stats = mt792x_get_et_stats, 1539 .get_tsf = mt792x_get_tsf, 1540 .set_tsf = mt792x_set_tsf, 1541 .get_survey = mt76_get_survey, 1542 .get_antenna = mt76_get_antenna, 1543 .set_antenna = mt7921_set_antenna, 1544 .set_coverage_class = mt792x_set_coverage_class, 1545 .hw_scan = mt7921_hw_scan, 1546 .cancel_hw_scan = mt7921_cancel_hw_scan, 1547 .sta_statistics = mt792x_sta_statistics, 1548 .sched_scan_start = mt7921_start_sched_scan, 1549 .sched_scan_stop = mt7921_stop_sched_scan, 1550 CFG80211_TESTMODE_CMD(mt7921_testmode_cmd) 1551 CFG80211_TESTMODE_DUMP(mt7921_testmode_dump) 1552 #ifdef CONFIG_PM 1553 .suspend = mt7921_suspend, 1554 .resume = mt7921_resume, 1555 .set_wakeup = mt792x_set_wakeup, 1556 .set_rekey_data = mt7921_set_rekey_data, 1557 #endif /* CONFIG_PM */ 1558 .flush = mt792x_flush, 1559 .set_sar_specs = mt7921_set_sar_specs, 1560 .rfkill_poll = mt7921_rfkill_poll, 1561 .remain_on_channel = mt7921_remain_on_channel, 1562 .cancel_remain_on_channel = mt7921_cancel_remain_on_channel, 1563 .add_chanctx = mt7921_add_chanctx, 1564 .remove_chanctx = mt7921_remove_chanctx, 1565 .change_chanctx = mt7921_change_chanctx, 1566 .assign_vif_chanctx = mt792x_assign_vif_chanctx, 1567 .unassign_vif_chanctx = mt792x_unassign_vif_chanctx, 1568 .mgd_prepare_tx = mt7921_mgd_prepare_tx, 1569 .mgd_complete_tx = mt7921_mgd_complete_tx, 1570 .switch_vif_chanctx = mt7921_switch_vif_chanctx, 1571 .pre_channel_switch = mt7921_pre_channel_switch, 1572 .channel_switch = mt7921_channel_switch, 1573 .abort_channel_switch = mt7921_abort_channel_switch, 1574 .channel_switch_rx_beacon = mt7921_channel_switch_rx_beacon, 1575 }; 1576 EXPORT_SYMBOL_GPL(mt7921_ops); 1577 1578 MODULE_DESCRIPTION("MediaTek MT7921 core driver"); 1579 MODULE_LICENSE("Dual BSD/GPL"); 1580 MODULE_AUTHOR("Sean Wang <sean.wang@mediatek.com>"); 1581