1 // SPDX-License-Identifier: ISC 2 /* Copyright (C) 2020 MediaTek Inc. */ 3 4 #include <linux/etherdevice.h> 5 #include <linux/platform_device.h> 6 #include <linux/pci.h> 7 #include <linux/module.h> 8 #include "mt7921.h" 9 #include "mcu.h" 10 11 static void 12 mt7921_gen_ppe_thresh(u8 *he_ppet, int nss) 13 { 14 u8 i, ppet_bits, ppet_size, ru_bit_mask = 0x7; /* HE80 */ 15 u8 ppet16_ppet8_ru3_ru0[] = {0x1c, 0xc7, 0x71}; 16 17 he_ppet[0] = FIELD_PREP(IEEE80211_PPE_THRES_NSS_MASK, nss - 1) | 18 FIELD_PREP(IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK, 19 ru_bit_mask); 20 21 ppet_bits = IEEE80211_PPE_THRES_INFO_PPET_SIZE * 22 nss * hweight8(ru_bit_mask) * 2; 23 ppet_size = DIV_ROUND_UP(ppet_bits, 8); 24 25 for (i = 0; i < ppet_size - 1; i++) 26 he_ppet[i + 1] = ppet16_ppet8_ru3_ru0[i % 3]; 27 28 he_ppet[i + 1] = ppet16_ppet8_ru3_ru0[i % 3] & 29 (0xff >> (8 - (ppet_bits - 1) % 8)); 30 } 31 32 static int 33 mt7921_init_he_caps(struct mt7921_phy *phy, enum nl80211_band band, 34 struct ieee80211_sband_iftype_data *data) 35 { 36 int i, idx = 0; 37 int nss = hweight8(phy->mt76->chainmask); 38 u16 mcs_map = 0; 39 40 for (i = 0; i < 8; i++) { 41 if (i < nss) 42 mcs_map |= (IEEE80211_HE_MCS_SUPPORT_0_11 << (i * 2)); 43 else 44 mcs_map |= (IEEE80211_HE_MCS_NOT_SUPPORTED << (i * 2)); 45 } 46 47 for (i = 0; i < NUM_NL80211_IFTYPES; i++) { 48 struct ieee80211_sta_he_cap *he_cap = &data[idx].he_cap; 49 struct ieee80211_he_cap_elem *he_cap_elem = 50 &he_cap->he_cap_elem; 51 struct ieee80211_he_mcs_nss_supp *he_mcs = 52 &he_cap->he_mcs_nss_supp; 53 54 switch (i) { 55 case NL80211_IFTYPE_STATION: 56 break; 57 default: 58 continue; 59 } 60 61 data[idx].types_mask = BIT(i); 62 he_cap->has_he = true; 63 64 he_cap_elem->mac_cap_info[0] = 65 IEEE80211_HE_MAC_CAP0_HTC_HE; 66 he_cap_elem->mac_cap_info[3] = 67 IEEE80211_HE_MAC_CAP3_OMI_CONTROL | 68 IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3; 69 he_cap_elem->mac_cap_info[4] = 70 IEEE80211_HE_MAC_CAP4_AMSDU_IN_AMPDU; 71 72 if (band == NL80211_BAND_2GHZ) 73 he_cap_elem->phy_cap_info[0] = 74 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G; 75 else 76 he_cap_elem->phy_cap_info[0] = 77 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G; 78 79 he_cap_elem->phy_cap_info[1] = 80 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD; 81 he_cap_elem->phy_cap_info[2] = 82 IEEE80211_HE_PHY_CAP2_NDP_4x_LTF_AND_3_2US | 83 IEEE80211_HE_PHY_CAP2_STBC_TX_UNDER_80MHZ | 84 IEEE80211_HE_PHY_CAP2_STBC_RX_UNDER_80MHZ | 85 IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO | 86 IEEE80211_HE_PHY_CAP2_UL_MU_PARTIAL_MU_MIMO; 87 88 switch (i) { 89 case NL80211_IFTYPE_STATION: 90 he_cap_elem->mac_cap_info[1] |= 91 IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US; 92 93 if (band == NL80211_BAND_2GHZ) 94 he_cap_elem->phy_cap_info[0] |= 95 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_RU_MAPPING_IN_2G; 96 else 97 he_cap_elem->phy_cap_info[0] |= 98 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_RU_MAPPING_IN_5G; 99 100 he_cap_elem->phy_cap_info[1] |= 101 IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A | 102 IEEE80211_HE_PHY_CAP1_HE_LTF_AND_GI_FOR_HE_PPDUS_0_8US; 103 he_cap_elem->phy_cap_info[3] |= 104 IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK | 105 IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK; 106 he_cap_elem->phy_cap_info[4] |= 107 IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE | 108 IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_4; 109 he_cap_elem->phy_cap_info[5] |= 110 IEEE80211_HE_PHY_CAP5_NG16_SU_FEEDBACK | 111 IEEE80211_HE_PHY_CAP5_NG16_MU_FEEDBACK; 112 he_cap_elem->phy_cap_info[6] |= 113 IEEE80211_HE_PHY_CAP6_CODEBOOK_SIZE_42_SU | 114 IEEE80211_HE_PHY_CAP6_CODEBOOK_SIZE_75_MU | 115 IEEE80211_HE_PHY_CAP6_TRIG_CQI_FB | 116 IEEE80211_HE_PHY_CAP6_PARTIAL_BW_EXT_RANGE | 117 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT; 118 he_cap_elem->phy_cap_info[7] |= 119 IEEE80211_HE_PHY_CAP7_POWER_BOOST_FACTOR_SUPP | 120 IEEE80211_HE_PHY_CAP7_HE_SU_MU_PPDU_4XLTF_AND_08_US_GI; 121 he_cap_elem->phy_cap_info[8] |= 122 IEEE80211_HE_PHY_CAP8_20MHZ_IN_40MHZ_HE_PPDU_IN_2G | 123 IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_484; 124 he_cap_elem->phy_cap_info[9] |= 125 IEEE80211_HE_PHY_CAP9_LONGER_THAN_16_SIGB_OFDM_SYM | 126 IEEE80211_HE_PHY_CAP9_NON_TRIGGERED_CQI_FEEDBACK | 127 IEEE80211_HE_PHY_CAP9_TX_1024_QAM_LESS_THAN_242_TONE_RU | 128 IEEE80211_HE_PHY_CAP9_RX_1024_QAM_LESS_THAN_242_TONE_RU | 129 IEEE80211_HE_PHY_CAP9_RX_FULL_BW_SU_USING_MU_WITH_COMP_SIGB | 130 IEEE80211_HE_PHY_CAP9_RX_FULL_BW_SU_USING_MU_WITH_NON_COMP_SIGB; 131 break; 132 } 133 134 he_mcs->rx_mcs_80 = cpu_to_le16(mcs_map); 135 he_mcs->tx_mcs_80 = cpu_to_le16(mcs_map); 136 137 memset(he_cap->ppe_thres, 0, sizeof(he_cap->ppe_thres)); 138 if (he_cap_elem->phy_cap_info[6] & 139 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 140 mt7921_gen_ppe_thresh(he_cap->ppe_thres, nss); 141 } else { 142 he_cap_elem->phy_cap_info[9] |= 143 IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_16US; 144 } 145 146 if (band == NL80211_BAND_6GHZ) { 147 struct ieee80211_supported_band *sband = 148 &phy->mt76->sband_5g.sband; 149 struct ieee80211_sta_vht_cap *vht_cap = &sband->vht_cap; 150 struct ieee80211_sta_ht_cap *ht_cap = &sband->ht_cap; 151 u32 exp; 152 u16 cap; 153 154 cap = u16_encode_bits(ht_cap->ampdu_density, 155 IEEE80211_HE_6GHZ_CAP_MIN_MPDU_START); 156 exp = u32_get_bits(vht_cap->cap, 157 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK); 158 cap |= u16_encode_bits(exp, 159 IEEE80211_HE_6GHZ_CAP_MAX_AMPDU_LEN_EXP); 160 exp = u32_get_bits(vht_cap->cap, 161 IEEE80211_VHT_CAP_MAX_MPDU_MASK); 162 cap |= u16_encode_bits(exp, 163 IEEE80211_HE_6GHZ_CAP_MAX_MPDU_LEN); 164 if (vht_cap->cap & IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN) 165 cap |= IEEE80211_HE_6GHZ_CAP_TX_ANTPAT_CONS; 166 if (vht_cap->cap & IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN) 167 cap |= IEEE80211_HE_6GHZ_CAP_RX_ANTPAT_CONS; 168 169 data->he_6ghz_capa.capa = cpu_to_le16(cap); 170 } 171 idx++; 172 } 173 174 return idx; 175 } 176 177 void mt7921_set_stream_he_caps(struct mt7921_phy *phy) 178 { 179 struct ieee80211_sband_iftype_data *data; 180 struct ieee80211_supported_band *band; 181 int n; 182 183 if (phy->mt76->cap.has_2ghz) { 184 data = phy->iftype[NL80211_BAND_2GHZ]; 185 n = mt7921_init_he_caps(phy, NL80211_BAND_2GHZ, data); 186 187 band = &phy->mt76->sband_2g.sband; 188 band->iftype_data = data; 189 band->n_iftype_data = n; 190 } 191 192 if (phy->mt76->cap.has_5ghz) { 193 data = phy->iftype[NL80211_BAND_5GHZ]; 194 n = mt7921_init_he_caps(phy, NL80211_BAND_5GHZ, data); 195 196 band = &phy->mt76->sband_5g.sband; 197 band->iftype_data = data; 198 band->n_iftype_data = n; 199 200 if (phy->mt76->cap.has_6ghz) { 201 data = phy->iftype[NL80211_BAND_6GHZ]; 202 n = mt7921_init_he_caps(phy, NL80211_BAND_6GHZ, data); 203 204 band = &phy->mt76->sband_6g.sband; 205 band->iftype_data = data; 206 band->n_iftype_data = n; 207 } 208 } 209 } 210 211 int __mt7921_start(struct mt7921_phy *phy) 212 { 213 struct mt76_phy *mphy = phy->mt76; 214 int err; 215 216 err = mt76_connac_mcu_set_mac_enable(mphy->dev, 0, true, false); 217 if (err) 218 return err; 219 220 err = mt76_connac_mcu_set_channel_domain(mphy); 221 if (err) 222 return err; 223 224 err = mt7921_mcu_set_chan_info(phy, MCU_EXT_CMD_SET_RX_PATH); 225 if (err) 226 return err; 227 228 err = mt76_connac_mcu_set_rate_txpower(phy->mt76); 229 if (err) 230 return err; 231 232 mt7921_mac_reset_counters(phy); 233 set_bit(MT76_STATE_RUNNING, &mphy->state); 234 235 ieee80211_queue_delayed_work(mphy->hw, &mphy->mac_work, 236 MT7921_WATCHDOG_TIME); 237 238 return 0; 239 } 240 EXPORT_SYMBOL_GPL(__mt7921_start); 241 242 static int mt7921_start(struct ieee80211_hw *hw) 243 { 244 struct mt7921_phy *phy = mt7921_hw_phy(hw); 245 int err; 246 247 mt7921_mutex_acquire(phy->dev); 248 err = __mt7921_start(phy); 249 mt7921_mutex_release(phy->dev); 250 251 return err; 252 } 253 254 static void mt7921_stop(struct ieee80211_hw *hw) 255 { 256 struct mt7921_dev *dev = mt7921_hw_dev(hw); 257 struct mt7921_phy *phy = mt7921_hw_phy(hw); 258 259 cancel_delayed_work_sync(&phy->mt76->mac_work); 260 261 cancel_delayed_work_sync(&dev->pm.ps_work); 262 cancel_work_sync(&dev->pm.wake_work); 263 mt76_connac_free_pending_tx_skbs(&dev->pm, NULL); 264 265 mt7921_mutex_acquire(dev); 266 clear_bit(MT76_STATE_RUNNING, &phy->mt76->state); 267 mt76_connac_mcu_set_mac_enable(&dev->mt76, 0, false, false); 268 mt7921_mutex_release(dev); 269 } 270 271 static int mt7921_add_interface(struct ieee80211_hw *hw, 272 struct ieee80211_vif *vif) 273 { 274 struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv; 275 struct mt7921_dev *dev = mt7921_hw_dev(hw); 276 struct mt7921_phy *phy = mt7921_hw_phy(hw); 277 struct mt76_txq *mtxq; 278 int idx, ret = 0; 279 280 mt7921_mutex_acquire(dev); 281 282 mvif->mt76.idx = ffs(~dev->mt76.vif_mask) - 1; 283 if (mvif->mt76.idx >= MT7921_MAX_INTERFACES) { 284 ret = -ENOSPC; 285 goto out; 286 } 287 288 mvif->mt76.omac_idx = mvif->mt76.idx; 289 mvif->phy = phy; 290 mvif->mt76.band_idx = 0; 291 mvif->mt76.wmm_idx = mvif->mt76.idx % MT7921_MAX_WMM_SETS; 292 293 ret = mt76_connac_mcu_uni_add_dev(&dev->mphy, vif, &mvif->sta.wcid, 294 true); 295 if (ret) 296 goto out; 297 298 dev->mt76.vif_mask |= BIT(mvif->mt76.idx); 299 phy->omac_mask |= BIT_ULL(mvif->mt76.omac_idx); 300 301 idx = MT7921_WTBL_RESERVED - mvif->mt76.idx; 302 303 INIT_LIST_HEAD(&mvif->sta.poll_list); 304 mvif->sta.wcid.idx = idx; 305 mvif->sta.wcid.ext_phy = mvif->mt76.band_idx; 306 mvif->sta.wcid.hw_key_idx = -1; 307 mvif->sta.wcid.tx_info |= MT_WCID_TX_INFO_SET; 308 mt76_packet_id_init(&mvif->sta.wcid); 309 310 mt7921_mac_wtbl_update(dev, idx, 311 MT_WTBL_UPDATE_ADM_COUNT_CLEAR); 312 313 ewma_rssi_init(&mvif->rssi); 314 315 rcu_assign_pointer(dev->mt76.wcid[idx], &mvif->sta.wcid); 316 if (vif->txq) { 317 mtxq = (struct mt76_txq *)vif->txq->drv_priv; 318 mtxq->wcid = &mvif->sta.wcid; 319 } 320 321 if (vif->type != NL80211_IFTYPE_AP && 322 (!mvif->mt76.omac_idx || mvif->mt76.omac_idx > 3)) 323 vif->offload_flags = 0; 324 325 vif->offload_flags |= IEEE80211_OFFLOAD_ENCAP_4ADDR; 326 327 out: 328 mt7921_mutex_release(dev); 329 330 return ret; 331 } 332 333 static void mt7921_remove_interface(struct ieee80211_hw *hw, 334 struct ieee80211_vif *vif) 335 { 336 struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv; 337 struct mt7921_sta *msta = &mvif->sta; 338 struct mt7921_dev *dev = mt7921_hw_dev(hw); 339 struct mt7921_phy *phy = mt7921_hw_phy(hw); 340 int idx = msta->wcid.idx; 341 342 mt7921_mutex_acquire(dev); 343 mt76_connac_free_pending_tx_skbs(&dev->pm, &msta->wcid); 344 mt76_connac_mcu_uni_add_dev(&dev->mphy, vif, &mvif->sta.wcid, false); 345 346 rcu_assign_pointer(dev->mt76.wcid[idx], NULL); 347 348 dev->mt76.vif_mask &= ~BIT(mvif->mt76.idx); 349 phy->omac_mask &= ~BIT_ULL(mvif->mt76.omac_idx); 350 mt7921_mutex_release(dev); 351 352 spin_lock_bh(&dev->sta_poll_lock); 353 if (!list_empty(&msta->poll_list)) 354 list_del_init(&msta->poll_list); 355 spin_unlock_bh(&dev->sta_poll_lock); 356 357 mt76_packet_id_flush(&dev->mt76, &msta->wcid); 358 } 359 360 static int mt7921_set_channel(struct mt7921_phy *phy) 361 { 362 struct mt7921_dev *dev = phy->dev; 363 int ret; 364 365 cancel_delayed_work_sync(&phy->mt76->mac_work); 366 367 mt7921_mutex_acquire(dev); 368 set_bit(MT76_RESET, &phy->mt76->state); 369 370 mt76_set_channel(phy->mt76); 371 372 ret = mt7921_mcu_set_chan_info(phy, MCU_EXT_CMD_CHANNEL_SWITCH); 373 if (ret) 374 goto out; 375 376 mt7921_mac_set_timing(phy); 377 378 mt7921_mac_reset_counters(phy); 379 phy->noise = 0; 380 381 out: 382 clear_bit(MT76_RESET, &phy->mt76->state); 383 mt7921_mutex_release(dev); 384 385 mt76_worker_schedule(&dev->mt76.tx_worker); 386 ieee80211_queue_delayed_work(phy->mt76->hw, &phy->mt76->mac_work, 387 MT7921_WATCHDOG_TIME); 388 389 return ret; 390 } 391 392 static int mt7921_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, 393 struct ieee80211_vif *vif, struct ieee80211_sta *sta, 394 struct ieee80211_key_conf *key) 395 { 396 struct mt7921_dev *dev = mt7921_hw_dev(hw); 397 struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv; 398 struct mt7921_sta *msta = sta ? (struct mt7921_sta *)sta->drv_priv : 399 &mvif->sta; 400 struct mt76_wcid *wcid = &msta->wcid; 401 u8 *wcid_keyidx = &wcid->hw_key_idx; 402 int idx = key->keyidx, err = 0; 403 404 /* The hardware does not support per-STA RX GTK, fallback 405 * to software mode for these. 406 */ 407 if ((vif->type == NL80211_IFTYPE_ADHOC || 408 vif->type == NL80211_IFTYPE_MESH_POINT) && 409 (key->cipher == WLAN_CIPHER_SUITE_TKIP || 410 key->cipher == WLAN_CIPHER_SUITE_CCMP) && 411 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) 412 return -EOPNOTSUPP; 413 414 /* fall back to sw encryption for unsupported ciphers */ 415 switch (key->cipher) { 416 case WLAN_CIPHER_SUITE_AES_CMAC: 417 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIE; 418 wcid_keyidx = &wcid->hw_key_idx2; 419 break; 420 case WLAN_CIPHER_SUITE_WEP40: 421 case WLAN_CIPHER_SUITE_WEP104: 422 if (!mvif->wep_sta) 423 return -EOPNOTSUPP; 424 break; 425 case WLAN_CIPHER_SUITE_TKIP: 426 case WLAN_CIPHER_SUITE_CCMP: 427 case WLAN_CIPHER_SUITE_CCMP_256: 428 case WLAN_CIPHER_SUITE_GCMP: 429 case WLAN_CIPHER_SUITE_GCMP_256: 430 case WLAN_CIPHER_SUITE_SMS4: 431 break; 432 default: 433 return -EOPNOTSUPP; 434 } 435 436 mt7921_mutex_acquire(dev); 437 438 if (cmd == SET_KEY) 439 *wcid_keyidx = idx; 440 else if (idx == *wcid_keyidx) 441 *wcid_keyidx = -1; 442 else 443 goto out; 444 445 mt76_wcid_key_setup(&dev->mt76, wcid, 446 cmd == SET_KEY ? key : NULL); 447 448 err = mt7921_mcu_add_key(dev, vif, msta, key, cmd); 449 if (err) 450 goto out; 451 452 if (key->cipher == WLAN_CIPHER_SUITE_WEP104 || 453 key->cipher == WLAN_CIPHER_SUITE_WEP40) 454 err = mt7921_mcu_add_key(dev, vif, mvif->wep_sta, key, cmd); 455 out: 456 mt7921_mutex_release(dev); 457 458 return err; 459 } 460 461 static int mt7921_config(struct ieee80211_hw *hw, u32 changed) 462 { 463 struct mt7921_dev *dev = mt7921_hw_dev(hw); 464 struct mt7921_phy *phy = mt7921_hw_phy(hw); 465 int ret; 466 467 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { 468 ieee80211_stop_queues(hw); 469 ret = mt7921_set_channel(phy); 470 if (ret) 471 return ret; 472 ieee80211_wake_queues(hw); 473 } 474 475 mt7921_mutex_acquire(dev); 476 477 if (changed & IEEE80211_CONF_CHANGE_POWER) 478 mt76_connac_mcu_set_rate_txpower(phy->mt76); 479 480 if (changed & IEEE80211_CONF_CHANGE_MONITOR) { 481 bool enabled = !!(hw->conf.flags & IEEE80211_CONF_MONITOR); 482 483 if (!enabled) 484 phy->rxfilter |= MT_WF_RFCR_DROP_OTHER_UC; 485 else 486 phy->rxfilter &= ~MT_WF_RFCR_DROP_OTHER_UC; 487 488 mt76_rmw_field(dev, MT_DMA_DCR0(0), MT_DMA_DCR0_RXD_G5_EN, 489 enabled); 490 mt76_wr(dev, MT_WF_RFCR(0), phy->rxfilter); 491 } 492 493 mt7921_mutex_release(dev); 494 495 return 0; 496 } 497 498 static int 499 mt7921_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif, u16 queue, 500 const struct ieee80211_tx_queue_params *params) 501 { 502 struct mt7921_dev *dev = mt7921_hw_dev(hw); 503 struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv; 504 505 /* no need to update right away, we'll get BSS_CHANGED_QOS */ 506 queue = mt7921_lmac_mapping(dev, queue); 507 mvif->queue_params[queue] = *params; 508 509 return 0; 510 } 511 512 static void mt7921_configure_filter(struct ieee80211_hw *hw, 513 unsigned int changed_flags, 514 unsigned int *total_flags, 515 u64 multicast) 516 { 517 struct mt7921_dev *dev = mt7921_hw_dev(hw); 518 struct mt7921_phy *phy = mt7921_hw_phy(hw); 519 u32 ctl_flags = MT_WF_RFCR1_DROP_ACK | 520 MT_WF_RFCR1_DROP_BF_POLL | 521 MT_WF_RFCR1_DROP_BA | 522 MT_WF_RFCR1_DROP_CFEND | 523 MT_WF_RFCR1_DROP_CFACK; 524 u32 flags = 0; 525 526 #define MT76_FILTER(_flag, _hw) do { \ 527 flags |= *total_flags & FIF_##_flag; \ 528 phy->rxfilter &= ~(_hw); \ 529 phy->rxfilter |= !(flags & FIF_##_flag) * (_hw); \ 530 } while (0) 531 532 mt7921_mutex_acquire(dev); 533 534 phy->rxfilter &= ~(MT_WF_RFCR_DROP_OTHER_BSS | 535 MT_WF_RFCR_DROP_OTHER_BEACON | 536 MT_WF_RFCR_DROP_FRAME_REPORT | 537 MT_WF_RFCR_DROP_PROBEREQ | 538 MT_WF_RFCR_DROP_MCAST_FILTERED | 539 MT_WF_RFCR_DROP_MCAST | 540 MT_WF_RFCR_DROP_BCAST | 541 MT_WF_RFCR_DROP_DUPLICATE | 542 MT_WF_RFCR_DROP_A2_BSSID | 543 MT_WF_RFCR_DROP_UNWANTED_CTL | 544 MT_WF_RFCR_DROP_STBC_MULTI); 545 546 MT76_FILTER(OTHER_BSS, MT_WF_RFCR_DROP_OTHER_TIM | 547 MT_WF_RFCR_DROP_A3_MAC | 548 MT_WF_RFCR_DROP_A3_BSSID); 549 550 MT76_FILTER(FCSFAIL, MT_WF_RFCR_DROP_FCSFAIL); 551 552 MT76_FILTER(CONTROL, MT_WF_RFCR_DROP_CTS | 553 MT_WF_RFCR_DROP_RTS | 554 MT_WF_RFCR_DROP_CTL_RSV | 555 MT_WF_RFCR_DROP_NDPA); 556 557 *total_flags = flags; 558 mt76_wr(dev, MT_WF_RFCR(0), phy->rxfilter); 559 560 if (*total_flags & FIF_CONTROL) 561 mt76_clear(dev, MT_WF_RFCR1(0), ctl_flags); 562 else 563 mt76_set(dev, MT_WF_RFCR1(0), ctl_flags); 564 565 mt7921_mutex_release(dev); 566 } 567 568 static void mt7921_bss_info_changed(struct ieee80211_hw *hw, 569 struct ieee80211_vif *vif, 570 struct ieee80211_bss_conf *info, 571 u32 changed) 572 { 573 struct mt7921_phy *phy = mt7921_hw_phy(hw); 574 struct mt7921_dev *dev = mt7921_hw_dev(hw); 575 576 mt7921_mutex_acquire(dev); 577 578 if (changed & BSS_CHANGED_ERP_SLOT) { 579 int slottime = info->use_short_slot ? 9 : 20; 580 581 if (slottime != phy->slottime) { 582 phy->slottime = slottime; 583 mt7921_mac_set_timing(phy); 584 } 585 } 586 587 /* ensure that enable txcmd_mode after bss_info */ 588 if (changed & (BSS_CHANGED_QOS | BSS_CHANGED_BEACON_ENABLED)) 589 mt7921_mcu_set_tx(dev, vif); 590 591 if (changed & BSS_CHANGED_PS) 592 mt7921_mcu_uni_bss_ps(dev, vif); 593 594 if (changed & BSS_CHANGED_ASSOC) { 595 mt7921_mcu_sta_update(dev, NULL, vif, true, 596 MT76_STA_INFO_STATE_ASSOC); 597 if (dev->pm.enable) 598 mt7921_mcu_set_beacon_filter(dev, vif, info->assoc); 599 } 600 601 if (changed & BSS_CHANGED_ARP_FILTER) { 602 struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv; 603 604 mt76_connac_mcu_update_arp_filter(&dev->mt76, &mvif->mt76, 605 info); 606 } 607 608 mt7921_mutex_release(dev); 609 } 610 611 int mt7921_mac_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif, 612 struct ieee80211_sta *sta) 613 { 614 struct mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76); 615 struct mt7921_sta *msta = (struct mt7921_sta *)sta->drv_priv; 616 struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv; 617 int ret, idx; 618 619 idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7921_WTBL_STA - 1); 620 if (idx < 0) 621 return -ENOSPC; 622 623 INIT_LIST_HEAD(&msta->poll_list); 624 msta->vif = mvif; 625 msta->wcid.sta = 1; 626 msta->wcid.idx = idx; 627 msta->wcid.ext_phy = mvif->mt76.band_idx; 628 msta->wcid.tx_info |= MT_WCID_TX_INFO_SET; 629 msta->last_txs = jiffies; 630 631 ret = mt76_connac_pm_wake(&dev->mphy, &dev->pm); 632 if (ret) 633 return ret; 634 635 if (vif->type == NL80211_IFTYPE_STATION) 636 mvif->wep_sta = msta; 637 638 mt7921_mac_wtbl_update(dev, idx, 639 MT_WTBL_UPDATE_ADM_COUNT_CLEAR); 640 641 ret = mt7921_mcu_sta_update(dev, sta, vif, true, 642 MT76_STA_INFO_STATE_NONE); 643 if (ret) 644 return ret; 645 646 mt76_connac_power_save_sched(&dev->mphy, &dev->pm); 647 648 return 0; 649 } 650 EXPORT_SYMBOL_GPL(mt7921_mac_sta_add); 651 652 void mt7921_mac_sta_assoc(struct mt76_dev *mdev, struct ieee80211_vif *vif, 653 struct ieee80211_sta *sta) 654 { 655 struct mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76); 656 struct mt7921_sta *msta = (struct mt7921_sta *)sta->drv_priv; 657 struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv; 658 659 mt7921_mutex_acquire(dev); 660 661 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 662 mt76_connac_mcu_uni_add_bss(&dev->mphy, vif, &mvif->sta.wcid, 663 true); 664 665 mt7921_mac_wtbl_update(dev, msta->wcid.idx, 666 MT_WTBL_UPDATE_ADM_COUNT_CLEAR); 667 668 mt7921_mcu_sta_update(dev, sta, vif, true, MT76_STA_INFO_STATE_ASSOC); 669 670 mt7921_mutex_release(dev); 671 } 672 EXPORT_SYMBOL_GPL(mt7921_mac_sta_assoc); 673 674 void mt7921_mac_sta_remove(struct mt76_dev *mdev, struct ieee80211_vif *vif, 675 struct ieee80211_sta *sta) 676 { 677 struct mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76); 678 struct mt7921_sta *msta = (struct mt7921_sta *)sta->drv_priv; 679 680 mt76_connac_free_pending_tx_skbs(&dev->pm, &msta->wcid); 681 mt76_connac_pm_wake(&dev->mphy, &dev->pm); 682 683 mt7921_mcu_sta_update(dev, sta, vif, false, MT76_STA_INFO_STATE_NONE); 684 mt7921_mac_wtbl_update(dev, msta->wcid.idx, 685 MT_WTBL_UPDATE_ADM_COUNT_CLEAR); 686 687 if (vif->type == NL80211_IFTYPE_STATION) { 688 struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv; 689 690 mvif->wep_sta = NULL; 691 ewma_rssi_init(&mvif->rssi); 692 if (!sta->tdls) 693 mt76_connac_mcu_uni_add_bss(&dev->mphy, vif, 694 &mvif->sta.wcid, false); 695 } 696 697 spin_lock_bh(&dev->sta_poll_lock); 698 if (!list_empty(&msta->poll_list)) 699 list_del_init(&msta->poll_list); 700 spin_unlock_bh(&dev->sta_poll_lock); 701 702 mt76_connac_power_save_sched(&dev->mphy, &dev->pm); 703 } 704 EXPORT_SYMBOL_GPL(mt7921_mac_sta_remove); 705 706 void mt7921_tx_worker(struct mt76_worker *w) 707 { 708 struct mt7921_dev *dev = container_of(w, struct mt7921_dev, 709 mt76.tx_worker); 710 711 if (!mt76_connac_pm_ref(&dev->mphy, &dev->pm)) { 712 queue_work(dev->mt76.wq, &dev->pm.wake_work); 713 return; 714 } 715 716 mt76_txq_schedule_all(&dev->mphy); 717 mt76_connac_pm_unref(&dev->mphy, &dev->pm); 718 } 719 720 static void mt7921_tx(struct ieee80211_hw *hw, 721 struct ieee80211_tx_control *control, 722 struct sk_buff *skb) 723 { 724 struct mt7921_dev *dev = mt7921_hw_dev(hw); 725 struct mt76_phy *mphy = hw->priv; 726 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 727 struct ieee80211_vif *vif = info->control.vif; 728 struct mt76_wcid *wcid = &dev->mt76.global_wcid; 729 int qid; 730 731 if (control->sta) { 732 struct mt7921_sta *sta; 733 734 sta = (struct mt7921_sta *)control->sta->drv_priv; 735 wcid = &sta->wcid; 736 } 737 738 if (vif && !control->sta) { 739 struct mt7921_vif *mvif; 740 741 mvif = (struct mt7921_vif *)vif->drv_priv; 742 wcid = &mvif->sta.wcid; 743 } 744 745 if (mt76_connac_pm_ref(mphy, &dev->pm)) { 746 mt76_tx(mphy, control->sta, wcid, skb); 747 mt76_connac_pm_unref(mphy, &dev->pm); 748 return; 749 } 750 751 qid = skb_get_queue_mapping(skb); 752 if (qid >= MT_TXQ_PSD) { 753 qid = IEEE80211_AC_BE; 754 skb_set_queue_mapping(skb, qid); 755 } 756 757 mt76_connac_pm_queue_skb(hw, &dev->pm, wcid, skb); 758 } 759 760 static int mt7921_set_rts_threshold(struct ieee80211_hw *hw, u32 val) 761 { 762 struct mt7921_dev *dev = mt7921_hw_dev(hw); 763 764 mt7921_mutex_acquire(dev); 765 mt76_connac_mcu_set_rts_thresh(&dev->mt76, val, 0); 766 mt7921_mutex_release(dev); 767 768 return 0; 769 } 770 771 static int 772 mt7921_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 773 struct ieee80211_ampdu_params *params) 774 { 775 enum ieee80211_ampdu_mlme_action action = params->action; 776 struct mt7921_dev *dev = mt7921_hw_dev(hw); 777 struct ieee80211_sta *sta = params->sta; 778 struct ieee80211_txq *txq = sta->txq[params->tid]; 779 struct mt7921_sta *msta = (struct mt7921_sta *)sta->drv_priv; 780 u16 tid = params->tid; 781 u16 ssn = params->ssn; 782 struct mt76_txq *mtxq; 783 int ret = 0; 784 785 if (!txq) 786 return -EINVAL; 787 788 mtxq = (struct mt76_txq *)txq->drv_priv; 789 790 mt7921_mutex_acquire(dev); 791 switch (action) { 792 case IEEE80211_AMPDU_RX_START: 793 mt76_rx_aggr_start(&dev->mt76, &msta->wcid, tid, ssn, 794 params->buf_size); 795 mt7921_mcu_uni_rx_ba(dev, params, true); 796 break; 797 case IEEE80211_AMPDU_RX_STOP: 798 mt76_rx_aggr_stop(&dev->mt76, &msta->wcid, tid); 799 mt7921_mcu_uni_rx_ba(dev, params, false); 800 break; 801 case IEEE80211_AMPDU_TX_OPERATIONAL: 802 mtxq->aggr = true; 803 mtxq->send_bar = false; 804 mt7921_mcu_uni_tx_ba(dev, params, true); 805 break; 806 case IEEE80211_AMPDU_TX_STOP_FLUSH: 807 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 808 mtxq->aggr = false; 809 clear_bit(tid, &msta->ampdu_state); 810 mt7921_mcu_uni_tx_ba(dev, params, false); 811 break; 812 case IEEE80211_AMPDU_TX_START: 813 set_bit(tid, &msta->ampdu_state); 814 ret = IEEE80211_AMPDU_TX_START_IMMEDIATE; 815 break; 816 case IEEE80211_AMPDU_TX_STOP_CONT: 817 mtxq->aggr = false; 818 clear_bit(tid, &msta->ampdu_state); 819 mt7921_mcu_uni_tx_ba(dev, params, false); 820 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 821 break; 822 } 823 mt7921_mutex_release(dev); 824 825 return ret; 826 } 827 828 static int mt7921_sta_state(struct ieee80211_hw *hw, 829 struct ieee80211_vif *vif, 830 struct ieee80211_sta *sta, 831 enum ieee80211_sta_state old_state, 832 enum ieee80211_sta_state new_state) 833 { 834 struct mt7921_dev *dev = mt7921_hw_dev(hw); 835 836 if (dev->pm.ds_enable) { 837 mt7921_mutex_acquire(dev); 838 mt76_connac_sta_state_dp(&dev->mt76, old_state, new_state); 839 mt7921_mutex_release(dev); 840 } 841 842 return mt76_sta_state(hw, vif, sta, old_state, new_state); 843 } 844 845 static int 846 mt7921_get_stats(struct ieee80211_hw *hw, 847 struct ieee80211_low_level_stats *stats) 848 { 849 struct mt7921_phy *phy = mt7921_hw_phy(hw); 850 struct mib_stats *mib = &phy->mib; 851 852 mt7921_mutex_acquire(phy->dev); 853 854 stats->dot11RTSSuccessCount = mib->rts_cnt; 855 stats->dot11RTSFailureCount = mib->rts_retries_cnt; 856 stats->dot11FCSErrorCount = mib->fcs_err_cnt; 857 stats->dot11ACKFailureCount = mib->ack_fail_cnt; 858 859 mt7921_mutex_release(phy->dev); 860 861 return 0; 862 } 863 864 static const char mt7921_gstrings_stats[][ETH_GSTRING_LEN] = { 865 /* tx counters */ 866 "tx_ampdu_cnt", 867 "tx_mpdu_attempts", 868 "tx_mpdu_success", 869 "tx_pkt_ebf_cnt", 870 "tx_pkt_ibf_cnt", 871 "tx_ampdu_len:0-1", 872 "tx_ampdu_len:2-10", 873 "tx_ampdu_len:11-19", 874 "tx_ampdu_len:20-28", 875 "tx_ampdu_len:29-37", 876 "tx_ampdu_len:38-46", 877 "tx_ampdu_len:47-55", 878 "tx_ampdu_len:56-79", 879 "tx_ampdu_len:80-103", 880 "tx_ampdu_len:104-127", 881 "tx_ampdu_len:128-151", 882 "tx_ampdu_len:152-175", 883 "tx_ampdu_len:176-199", 884 "tx_ampdu_len:200-223", 885 "tx_ampdu_len:224-247", 886 "ba_miss_count", 887 "tx_beamformer_ppdu_iBF", 888 "tx_beamformer_ppdu_eBF", 889 "tx_beamformer_rx_feedback_all", 890 "tx_beamformer_rx_feedback_he", 891 "tx_beamformer_rx_feedback_vht", 892 "tx_beamformer_rx_feedback_ht", 893 "tx_msdu_pack_1", 894 "tx_msdu_pack_2", 895 "tx_msdu_pack_3", 896 "tx_msdu_pack_4", 897 "tx_msdu_pack_5", 898 "tx_msdu_pack_6", 899 "tx_msdu_pack_7", 900 "tx_msdu_pack_8", 901 /* rx counters */ 902 "rx_mpdu_cnt", 903 "rx_ampdu_cnt", 904 "rx_ampdu_bytes_cnt", 905 "rx_ba_cnt", 906 /* per vif counters */ 907 "v_tx_mode_cck", 908 "v_tx_mode_ofdm", 909 "v_tx_mode_ht", 910 "v_tx_mode_ht_gf", 911 "v_tx_mode_vht", 912 "v_tx_mode_he_su", 913 "v_tx_mode_he_ext_su", 914 "v_tx_mode_he_tb", 915 "v_tx_mode_he_mu", 916 "v_tx_bw_20", 917 "v_tx_bw_40", 918 "v_tx_bw_80", 919 "v_tx_bw_160", 920 "v_tx_mcs_0", 921 "v_tx_mcs_1", 922 "v_tx_mcs_2", 923 "v_tx_mcs_3", 924 "v_tx_mcs_4", 925 "v_tx_mcs_5", 926 "v_tx_mcs_6", 927 "v_tx_mcs_7", 928 "v_tx_mcs_8", 929 "v_tx_mcs_9", 930 "v_tx_mcs_10", 931 "v_tx_mcs_11", 932 }; 933 934 static void 935 mt7921_get_et_strings(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 936 u32 sset, u8 *data) 937 { 938 if (sset != ETH_SS_STATS) 939 return; 940 941 memcpy(data, *mt7921_gstrings_stats, sizeof(mt7921_gstrings_stats)); 942 } 943 944 static int 945 mt7921_get_et_sset_count(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 946 int sset) 947 { 948 return sset == ETH_SS_STATS ? ARRAY_SIZE(mt7921_gstrings_stats) : 0; 949 } 950 951 static void 952 mt7921_ethtool_worker(void *wi_data, struct ieee80211_sta *sta) 953 { 954 struct mt7921_sta *msta = (struct mt7921_sta *)sta->drv_priv; 955 struct mt76_ethtool_worker_info *wi = wi_data; 956 957 if (msta->vif->mt76.idx != wi->idx) 958 return; 959 960 mt76_ethtool_worker(wi, &msta->stats); 961 } 962 963 static 964 void mt7921_get_et_stats(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 965 struct ethtool_stats *stats, u64 *data) 966 { 967 struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv; 968 struct mt7921_phy *phy = mt7921_hw_phy(hw); 969 struct mt7921_dev *dev = phy->dev; 970 struct mib_stats *mib = &phy->mib; 971 struct mt76_ethtool_worker_info wi = { 972 .data = data, 973 .idx = mvif->mt76.idx, 974 }; 975 int i, ei = 0; 976 977 mt7921_mutex_acquire(dev); 978 979 mt7921_mac_update_mib_stats(phy); 980 981 data[ei++] = mib->tx_ampdu_cnt; 982 data[ei++] = mib->tx_mpdu_attempts_cnt; 983 data[ei++] = mib->tx_mpdu_success_cnt; 984 data[ei++] = mib->tx_pkt_ebf_cnt; 985 data[ei++] = mib->tx_pkt_ibf_cnt; 986 987 /* Tx ampdu stat */ 988 for (i = 0; i < 15; i++) 989 data[ei++] = dev->mt76.aggr_stats[i]; 990 991 data[ei++] = phy->mib.ba_miss_cnt; 992 993 /* Tx Beamformer monitor */ 994 data[ei++] = mib->tx_bf_ibf_ppdu_cnt; 995 data[ei++] = mib->tx_bf_ebf_ppdu_cnt; 996 997 /* Tx Beamformer Rx feedback monitor */ 998 data[ei++] = mib->tx_bf_rx_fb_all_cnt; 999 data[ei++] = mib->tx_bf_rx_fb_he_cnt; 1000 data[ei++] = mib->tx_bf_rx_fb_vht_cnt; 1001 data[ei++] = mib->tx_bf_rx_fb_ht_cnt; 1002 1003 /* Tx amsdu info (pack-count histogram) */ 1004 for (i = 0; i < ARRAY_SIZE(mib->tx_amsdu); i++) 1005 data[ei++] = mib->tx_amsdu[i]; 1006 1007 /* rx counters */ 1008 data[ei++] = mib->rx_mpdu_cnt; 1009 data[ei++] = mib->rx_ampdu_cnt; 1010 data[ei++] = mib->rx_ampdu_bytes_cnt; 1011 data[ei++] = mib->rx_ba_cnt; 1012 1013 /* Add values for all stations owned by this vif */ 1014 wi.initial_stat_idx = ei; 1015 ieee80211_iterate_stations_atomic(hw, mt7921_ethtool_worker, &wi); 1016 1017 mt7921_mutex_release(dev); 1018 1019 if (!wi.sta_count) 1020 return; 1021 1022 ei += wi.worker_stat_count; 1023 if (ei != ARRAY_SIZE(mt7921_gstrings_stats)) 1024 dev_err(dev->mt76.dev, "ei: %d SSTATS_LEN: %zu", 1025 ei, ARRAY_SIZE(mt7921_gstrings_stats)); 1026 } 1027 1028 static u64 1029 mt7921_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif) 1030 { 1031 struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv; 1032 struct mt7921_dev *dev = mt7921_hw_dev(hw); 1033 u8 omac_idx = mvif->mt76.omac_idx; 1034 union { 1035 u64 t64; 1036 u32 t32[2]; 1037 } tsf; 1038 u16 n; 1039 1040 mt7921_mutex_acquire(dev); 1041 1042 n = omac_idx > HW_BSSID_MAX ? HW_BSSID_0 : omac_idx; 1043 /* TSF software read */ 1044 mt76_set(dev, MT_LPON_TCR(0, n), MT_LPON_TCR_SW_MODE); 1045 tsf.t32[0] = mt76_rr(dev, MT_LPON_UTTR0(0)); 1046 tsf.t32[1] = mt76_rr(dev, MT_LPON_UTTR1(0)); 1047 1048 mt7921_mutex_release(dev); 1049 1050 return tsf.t64; 1051 } 1052 1053 static void 1054 mt7921_set_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 1055 u64 timestamp) 1056 { 1057 struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv; 1058 struct mt7921_dev *dev = mt7921_hw_dev(hw); 1059 u8 omac_idx = mvif->mt76.omac_idx; 1060 union { 1061 u64 t64; 1062 u32 t32[2]; 1063 } tsf = { .t64 = timestamp, }; 1064 u16 n; 1065 1066 mt7921_mutex_acquire(dev); 1067 1068 n = omac_idx > HW_BSSID_MAX ? HW_BSSID_0 : omac_idx; 1069 mt76_wr(dev, MT_LPON_UTTR0(0), tsf.t32[0]); 1070 mt76_wr(dev, MT_LPON_UTTR1(0), tsf.t32[1]); 1071 /* TSF software overwrite */ 1072 mt76_set(dev, MT_LPON_TCR(0, n), MT_LPON_TCR_SW_WRITE); 1073 1074 mt7921_mutex_release(dev); 1075 } 1076 1077 static void 1078 mt7921_set_coverage_class(struct ieee80211_hw *hw, s16 coverage_class) 1079 { 1080 struct mt7921_phy *phy = mt7921_hw_phy(hw); 1081 struct mt7921_dev *dev = phy->dev; 1082 1083 mt7921_mutex_acquire(dev); 1084 phy->coverage_class = max_t(s16, coverage_class, 0); 1085 mt7921_mac_set_timing(phy); 1086 mt7921_mutex_release(dev); 1087 } 1088 1089 void mt7921_scan_work(struct work_struct *work) 1090 { 1091 struct mt7921_phy *phy; 1092 1093 phy = (struct mt7921_phy *)container_of(work, struct mt7921_phy, 1094 scan_work.work); 1095 1096 while (true) { 1097 struct mt7921_mcu_rxd *rxd; 1098 struct sk_buff *skb; 1099 1100 spin_lock_bh(&phy->dev->mt76.lock); 1101 skb = __skb_dequeue(&phy->scan_event_list); 1102 spin_unlock_bh(&phy->dev->mt76.lock); 1103 1104 if (!skb) 1105 break; 1106 1107 rxd = (struct mt7921_mcu_rxd *)skb->data; 1108 if (rxd->eid == MCU_EVENT_SCHED_SCAN_DONE) { 1109 ieee80211_sched_scan_results(phy->mt76->hw); 1110 } else if (test_and_clear_bit(MT76_HW_SCANNING, 1111 &phy->mt76->state)) { 1112 struct cfg80211_scan_info info = { 1113 .aborted = false, 1114 }; 1115 1116 ieee80211_scan_completed(phy->mt76->hw, &info); 1117 } 1118 dev_kfree_skb(skb); 1119 } 1120 } 1121 1122 static int 1123 mt7921_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 1124 struct ieee80211_scan_request *req) 1125 { 1126 struct mt7921_dev *dev = mt7921_hw_dev(hw); 1127 struct mt76_phy *mphy = hw->priv; 1128 int err; 1129 1130 mt7921_mutex_acquire(dev); 1131 err = mt76_connac_mcu_hw_scan(mphy, vif, req); 1132 mt7921_mutex_release(dev); 1133 1134 return err; 1135 } 1136 1137 static void 1138 mt7921_cancel_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif) 1139 { 1140 struct mt7921_dev *dev = mt7921_hw_dev(hw); 1141 struct mt76_phy *mphy = hw->priv; 1142 1143 mt7921_mutex_acquire(dev); 1144 mt76_connac_mcu_cancel_hw_scan(mphy, vif); 1145 mt7921_mutex_release(dev); 1146 } 1147 1148 static int 1149 mt7921_start_sched_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 1150 struct cfg80211_sched_scan_request *req, 1151 struct ieee80211_scan_ies *ies) 1152 { 1153 struct mt7921_dev *dev = mt7921_hw_dev(hw); 1154 struct mt76_phy *mphy = hw->priv; 1155 int err; 1156 1157 mt7921_mutex_acquire(dev); 1158 1159 err = mt76_connac_mcu_sched_scan_req(mphy, vif, req); 1160 if (err < 0) 1161 goto out; 1162 1163 err = mt76_connac_mcu_sched_scan_enable(mphy, vif, true); 1164 out: 1165 mt7921_mutex_release(dev); 1166 1167 return err; 1168 } 1169 1170 static int 1171 mt7921_stop_sched_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif) 1172 { 1173 struct mt7921_dev *dev = mt7921_hw_dev(hw); 1174 struct mt76_phy *mphy = hw->priv; 1175 int err; 1176 1177 mt7921_mutex_acquire(dev); 1178 err = mt76_connac_mcu_sched_scan_enable(mphy, vif, false); 1179 mt7921_mutex_release(dev); 1180 1181 return err; 1182 } 1183 1184 static int 1185 mt7921_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant) 1186 { 1187 struct mt7921_dev *dev = mt7921_hw_dev(hw); 1188 struct mt7921_phy *phy = mt7921_hw_phy(hw); 1189 int max_nss = hweight8(hw->wiphy->available_antennas_tx); 1190 1191 if (!tx_ant || tx_ant != rx_ant || ffs(tx_ant) > max_nss) 1192 return -EINVAL; 1193 1194 if ((BIT(hweight8(tx_ant)) - 1) != tx_ant) 1195 tx_ant = BIT(ffs(tx_ant) - 1) - 1; 1196 1197 mt7921_mutex_acquire(dev); 1198 1199 phy->mt76->antenna_mask = tx_ant; 1200 phy->mt76->chainmask = tx_ant; 1201 1202 mt76_set_stream_caps(phy->mt76, true); 1203 mt7921_set_stream_he_caps(phy); 1204 1205 mt7921_mutex_release(dev); 1206 1207 return 0; 1208 } 1209 1210 static void mt7921_sta_statistics(struct ieee80211_hw *hw, 1211 struct ieee80211_vif *vif, 1212 struct ieee80211_sta *sta, 1213 struct station_info *sinfo) 1214 { 1215 struct mt7921_sta *msta = (struct mt7921_sta *)sta->drv_priv; 1216 struct rate_info *txrate = &msta->wcid.rate; 1217 1218 if (!txrate->legacy && !txrate->flags) 1219 return; 1220 1221 if (txrate->legacy) { 1222 sinfo->txrate.legacy = txrate->legacy; 1223 } else { 1224 sinfo->txrate.mcs = txrate->mcs; 1225 sinfo->txrate.nss = txrate->nss; 1226 sinfo->txrate.bw = txrate->bw; 1227 sinfo->txrate.he_gi = txrate->he_gi; 1228 sinfo->txrate.he_dcm = txrate->he_dcm; 1229 sinfo->txrate.he_ru_alloc = txrate->he_ru_alloc; 1230 } 1231 sinfo->txrate.flags = txrate->flags; 1232 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE); 1233 } 1234 1235 #ifdef CONFIG_PM 1236 static int mt7921_suspend(struct ieee80211_hw *hw, 1237 struct cfg80211_wowlan *wowlan) 1238 { 1239 struct mt7921_dev *dev = mt7921_hw_dev(hw); 1240 struct mt7921_phy *phy = mt7921_hw_phy(hw); 1241 int err; 1242 1243 cancel_delayed_work_sync(&phy->scan_work); 1244 cancel_delayed_work_sync(&phy->mt76->mac_work); 1245 1246 cancel_delayed_work_sync(&dev->pm.ps_work); 1247 mt76_connac_free_pending_tx_skbs(&dev->pm, NULL); 1248 1249 mt7921_mutex_acquire(dev); 1250 1251 clear_bit(MT76_STATE_RUNNING, &phy->mt76->state); 1252 1253 set_bit(MT76_STATE_SUSPEND, &phy->mt76->state); 1254 ieee80211_iterate_active_interfaces(hw, 1255 IEEE80211_IFACE_ITER_RESUME_ALL, 1256 mt76_connac_mcu_set_suspend_iter, 1257 &dev->mphy); 1258 1259 err = mt76_connac_mcu_set_hif_suspend(&dev->mt76, true); 1260 1261 mt7921_mutex_release(dev); 1262 1263 return err; 1264 } 1265 1266 static int mt7921_resume(struct ieee80211_hw *hw) 1267 { 1268 struct mt7921_dev *dev = mt7921_hw_dev(hw); 1269 struct mt7921_phy *phy = mt7921_hw_phy(hw); 1270 int err; 1271 1272 mt7921_mutex_acquire(dev); 1273 1274 err = mt76_connac_mcu_set_hif_suspend(&dev->mt76, false); 1275 if (err < 0) 1276 goto out; 1277 1278 set_bit(MT76_STATE_RUNNING, &phy->mt76->state); 1279 clear_bit(MT76_STATE_SUSPEND, &phy->mt76->state); 1280 ieee80211_iterate_active_interfaces(hw, 1281 IEEE80211_IFACE_ITER_RESUME_ALL, 1282 mt76_connac_mcu_set_suspend_iter, 1283 &dev->mphy); 1284 1285 ieee80211_queue_delayed_work(hw, &phy->mt76->mac_work, 1286 MT7921_WATCHDOG_TIME); 1287 out: 1288 1289 mt7921_mutex_release(dev); 1290 1291 return err; 1292 } 1293 1294 static void mt7921_set_wakeup(struct ieee80211_hw *hw, bool enabled) 1295 { 1296 struct mt7921_dev *dev = mt7921_hw_dev(hw); 1297 struct mt76_dev *mdev = &dev->mt76; 1298 1299 device_set_wakeup_enable(mdev->dev, enabled); 1300 } 1301 1302 static void mt7921_set_rekey_data(struct ieee80211_hw *hw, 1303 struct ieee80211_vif *vif, 1304 struct cfg80211_gtk_rekey_data *data) 1305 { 1306 struct mt7921_dev *dev = mt7921_hw_dev(hw); 1307 1308 mt7921_mutex_acquire(dev); 1309 mt76_connac_mcu_update_gtk_rekey(hw, vif, data); 1310 mt7921_mutex_release(dev); 1311 } 1312 #endif /* CONFIG_PM */ 1313 1314 static void mt7921_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 1315 u32 queues, bool drop) 1316 { 1317 struct mt7921_dev *dev = mt7921_hw_dev(hw); 1318 1319 wait_event_timeout(dev->mt76.tx_wait, !mt76_has_tx_pending(&dev->mphy), 1320 HZ / 2); 1321 } 1322 1323 static void mt7921_sta_set_decap_offload(struct ieee80211_hw *hw, 1324 struct ieee80211_vif *vif, 1325 struct ieee80211_sta *sta, 1326 bool enabled) 1327 { 1328 struct mt7921_sta *msta = (struct mt7921_sta *)sta->drv_priv; 1329 struct mt7921_dev *dev = mt7921_hw_dev(hw); 1330 1331 if (enabled) 1332 set_bit(MT_WCID_FLAG_HDR_TRANS, &msta->wcid.flags); 1333 else 1334 clear_bit(MT_WCID_FLAG_HDR_TRANS, &msta->wcid.flags); 1335 1336 mt76_connac_mcu_sta_update_hdr_trans(&dev->mt76, vif, &msta->wcid, 1337 MCU_UNI_CMD_STA_REC_UPDATE); 1338 } 1339 1340 static int mt7921_set_sar_specs(struct ieee80211_hw *hw, 1341 const struct cfg80211_sar_specs *sar) 1342 { 1343 const struct cfg80211_sar_capa *capa = hw->wiphy->sar_capa; 1344 struct mt7921_dev *dev = mt7921_hw_dev(hw); 1345 struct mt76_freq_range_power *data, *frp; 1346 struct mt76_phy *mphy = hw->priv; 1347 int err; 1348 u32 i; 1349 1350 if (sar->type != NL80211_SAR_TYPE_POWER || !sar->num_sub_specs) 1351 return -EINVAL; 1352 1353 mt7921_mutex_acquire(dev); 1354 1355 data = mphy->frp; 1356 1357 for (i = 0; i < sar->num_sub_specs; i++) { 1358 u32 index = sar->sub_specs[i].freq_range_index; 1359 /* SAR specifies power limitaton in 0.25dbm */ 1360 s32 power = sar->sub_specs[i].power >> 1; 1361 1362 if (power > 127 || power < -127) 1363 power = 127; 1364 1365 frp = &data[index]; 1366 frp->range = &capa->freq_ranges[index]; 1367 frp->power = power; 1368 } 1369 1370 err = mt76_connac_mcu_set_rate_txpower(mphy); 1371 1372 mt7921_mutex_release(dev); 1373 1374 return err; 1375 } 1376 1377 const struct ieee80211_ops mt7921_ops = { 1378 .tx = mt7921_tx, 1379 .start = mt7921_start, 1380 .stop = mt7921_stop, 1381 .add_interface = mt7921_add_interface, 1382 .remove_interface = mt7921_remove_interface, 1383 .config = mt7921_config, 1384 .conf_tx = mt7921_conf_tx, 1385 .configure_filter = mt7921_configure_filter, 1386 .bss_info_changed = mt7921_bss_info_changed, 1387 .sta_state = mt7921_sta_state, 1388 .sta_pre_rcu_remove = mt76_sta_pre_rcu_remove, 1389 .set_key = mt7921_set_key, 1390 .sta_set_decap_offload = mt7921_sta_set_decap_offload, 1391 .ampdu_action = mt7921_ampdu_action, 1392 .set_rts_threshold = mt7921_set_rts_threshold, 1393 .wake_tx_queue = mt76_wake_tx_queue, 1394 .release_buffered_frames = mt76_release_buffered_frames, 1395 .get_txpower = mt76_get_txpower, 1396 .get_stats = mt7921_get_stats, 1397 .get_et_sset_count = mt7921_get_et_sset_count, 1398 .get_et_strings = mt7921_get_et_strings, 1399 .get_et_stats = mt7921_get_et_stats, 1400 .get_tsf = mt7921_get_tsf, 1401 .set_tsf = mt7921_set_tsf, 1402 .get_survey = mt76_get_survey, 1403 .get_antenna = mt76_get_antenna, 1404 .set_antenna = mt7921_set_antenna, 1405 .set_coverage_class = mt7921_set_coverage_class, 1406 .hw_scan = mt7921_hw_scan, 1407 .cancel_hw_scan = mt7921_cancel_hw_scan, 1408 .sta_statistics = mt7921_sta_statistics, 1409 .sched_scan_start = mt7921_start_sched_scan, 1410 .sched_scan_stop = mt7921_stop_sched_scan, 1411 CFG80211_TESTMODE_CMD(mt7921_testmode_cmd) 1412 CFG80211_TESTMODE_DUMP(mt7921_testmode_dump) 1413 #ifdef CONFIG_PM 1414 .suspend = mt7921_suspend, 1415 .resume = mt7921_resume, 1416 .set_wakeup = mt7921_set_wakeup, 1417 .set_rekey_data = mt7921_set_rekey_data, 1418 #endif /* CONFIG_PM */ 1419 .flush = mt7921_flush, 1420 .set_sar_specs = mt7921_set_sar_specs, 1421 }; 1422 EXPORT_SYMBOL_GPL(mt7921_ops); 1423 1424 MODULE_LICENSE("Dual BSD/GPL"); 1425 MODULE_AUTHOR("Sean Wang <sean.wang@mediatek.com>"); 1426