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 "mt7915.h" 9 #include "mcu.h" 10 11 static bool mt7915_dev_running(struct mt7915_dev *dev) 12 { 13 struct mt7915_phy *phy; 14 15 if (test_bit(MT76_STATE_RUNNING, &dev->mphy.state)) 16 return true; 17 18 phy = mt7915_ext_phy(dev); 19 20 return phy && test_bit(MT76_STATE_RUNNING, &phy->mt76->state); 21 } 22 23 static int mt7915_start(struct ieee80211_hw *hw) 24 { 25 struct mt7915_dev *dev = mt7915_hw_dev(hw); 26 struct mt7915_phy *phy = mt7915_hw_phy(hw); 27 bool running; 28 29 mutex_lock(&dev->mt76.mutex); 30 31 running = mt7915_dev_running(dev); 32 33 if (!running) { 34 mt7915_mcu_set_pm(dev, 0, 0); 35 mt7915_mcu_set_mac(dev, 0, true, false); 36 mt7915_mcu_set_scs(dev, 0, true); 37 } 38 39 if (phy != &dev->phy) { 40 mt7915_mcu_set_pm(dev, 1, 0); 41 mt7915_mcu_set_mac(dev, 1, true, false); 42 mt7915_mcu_set_scs(dev, 1, true); 43 } 44 45 mt7915_mcu_set_sku_en(phy, true); 46 mt7915_mcu_set_chan_info(phy, MCU_EXT_CMD_SET_RX_PATH); 47 48 set_bit(MT76_STATE_RUNNING, &phy->mt76->state); 49 50 ieee80211_queue_delayed_work(hw, &phy->mac_work, 51 MT7915_WATCHDOG_TIME); 52 53 if (!running) 54 mt7915_mac_reset_counters(phy); 55 56 mutex_unlock(&dev->mt76.mutex); 57 58 return 0; 59 } 60 61 static void mt7915_stop(struct ieee80211_hw *hw) 62 { 63 struct mt7915_dev *dev = mt7915_hw_dev(hw); 64 struct mt7915_phy *phy = mt7915_hw_phy(hw); 65 66 cancel_delayed_work_sync(&phy->mac_work); 67 68 mutex_lock(&dev->mt76.mutex); 69 70 clear_bit(MT76_STATE_RUNNING, &phy->mt76->state); 71 72 if (phy != &dev->phy) { 73 mt7915_mcu_set_pm(dev, 1, 1); 74 mt7915_mcu_set_mac(dev, 1, false, false); 75 } 76 77 if (!mt7915_dev_running(dev)) { 78 mt7915_mcu_set_pm(dev, 0, 1); 79 mt7915_mcu_set_mac(dev, 0, false, false); 80 } 81 82 mutex_unlock(&dev->mt76.mutex); 83 } 84 85 static int get_omac_idx(enum nl80211_iftype type, u32 mask) 86 { 87 int i; 88 89 switch (type) { 90 case NL80211_IFTYPE_MONITOR: 91 case NL80211_IFTYPE_AP: 92 /* ap uses hw bssid 0 and ext bssid */ 93 if (~mask & BIT(HW_BSSID_0)) 94 return HW_BSSID_0; 95 96 for (i = EXT_BSSID_1; i < EXT_BSSID_END; i++) 97 if (~mask & BIT(i)) 98 return i; 99 break; 100 case NL80211_IFTYPE_MESH_POINT: 101 case NL80211_IFTYPE_ADHOC: 102 case NL80211_IFTYPE_STATION: 103 /* station uses hw bssid other than 0 */ 104 for (i = HW_BSSID_1; i < HW_BSSID_MAX; i++) 105 if (~mask & BIT(i)) 106 return i; 107 break; 108 default: 109 WARN_ON(1); 110 break; 111 } 112 113 return -1; 114 } 115 116 static int mt7915_add_interface(struct ieee80211_hw *hw, 117 struct ieee80211_vif *vif) 118 { 119 struct mt7915_vif *mvif = (struct mt7915_vif *)vif->drv_priv; 120 struct mt7915_dev *dev = mt7915_hw_dev(hw); 121 struct mt7915_phy *phy = mt7915_hw_phy(hw); 122 struct mt76_txq *mtxq; 123 bool ext_phy = phy != &dev->phy; 124 int idx, ret = 0; 125 126 mutex_lock(&dev->mt76.mutex); 127 128 mvif->idx = ffs(~phy->vif_mask) - 1; 129 if (mvif->idx >= MT7915_MAX_INTERFACES) { 130 ret = -ENOSPC; 131 goto out; 132 } 133 134 idx = get_omac_idx(vif->type, phy->omac_mask); 135 if (idx < 0) { 136 ret = -ENOSPC; 137 goto out; 138 } 139 mvif->omac_idx = idx; 140 mvif->dev = dev; 141 mvif->band_idx = ext_phy; 142 143 if (ext_phy) 144 mvif->wmm_idx = ext_phy * (MT7915_MAX_WMM_SETS / 2) + 145 mvif->idx % (MT7915_MAX_WMM_SETS / 2); 146 else 147 mvif->wmm_idx = mvif->idx % MT7915_MAX_WMM_SETS; 148 149 ret = mt7915_mcu_add_dev_info(dev, vif, true); 150 if (ret) 151 goto out; 152 153 phy->vif_mask |= BIT(mvif->idx); 154 phy->omac_mask |= BIT(mvif->omac_idx); 155 156 idx = MT7915_WTBL_RESERVED - mvif->idx; 157 158 INIT_LIST_HEAD(&mvif->sta.poll_list); 159 mvif->sta.wcid.idx = idx; 160 mvif->sta.wcid.ext_phy = mvif->band_idx; 161 mvif->sta.wcid.hw_key_idx = -1; 162 mvif->sta.wcid.tx_info |= MT_WCID_TX_INFO_SET; 163 mt7915_mac_wtbl_update(dev, idx, 164 MT_WTBL_UPDATE_ADM_COUNT_CLEAR); 165 166 rcu_assign_pointer(dev->mt76.wcid[idx], &mvif->sta.wcid); 167 if (vif->txq) { 168 mtxq = (struct mt76_txq *)vif->txq->drv_priv; 169 mtxq->wcid = &mvif->sta.wcid; 170 mt76_txq_init(&dev->mt76, vif->txq); 171 } 172 173 out: 174 mutex_unlock(&dev->mt76.mutex); 175 176 return ret; 177 } 178 179 static void mt7915_remove_interface(struct ieee80211_hw *hw, 180 struct ieee80211_vif *vif) 181 { 182 struct mt7915_vif *mvif = (struct mt7915_vif *)vif->drv_priv; 183 struct mt7915_sta *msta = &mvif->sta; 184 struct mt7915_dev *dev = mt7915_hw_dev(hw); 185 struct mt7915_phy *phy = mt7915_hw_phy(hw); 186 int idx = msta->wcid.idx; 187 188 /* TODO: disable beacon for the bss */ 189 190 mt7915_mcu_add_dev_info(dev, vif, false); 191 192 rcu_assign_pointer(dev->mt76.wcid[idx], NULL); 193 if (vif->txq) 194 mt76_txq_remove(&dev->mt76, vif->txq); 195 196 mutex_lock(&dev->mt76.mutex); 197 phy->vif_mask &= ~BIT(mvif->idx); 198 phy->omac_mask &= ~BIT(mvif->omac_idx); 199 mutex_unlock(&dev->mt76.mutex); 200 201 spin_lock_bh(&dev->sta_poll_lock); 202 if (!list_empty(&msta->poll_list)) 203 list_del_init(&msta->poll_list); 204 spin_unlock_bh(&dev->sta_poll_lock); 205 } 206 207 static void mt7915_init_dfs_state(struct mt7915_phy *phy) 208 { 209 struct mt76_phy *mphy = phy->mt76; 210 struct ieee80211_hw *hw = mphy->hw; 211 struct cfg80211_chan_def *chandef = &hw->conf.chandef; 212 213 if (hw->conf.flags & IEEE80211_CONF_OFFCHANNEL) 214 return; 215 216 if (!(chandef->chan->flags & IEEE80211_CHAN_RADAR)) 217 return; 218 219 if (mphy->chandef.chan->center_freq == chandef->chan->center_freq && 220 mphy->chandef.width == chandef->width) 221 return; 222 223 phy->dfs_state = -1; 224 } 225 226 static int mt7915_set_channel(struct mt7915_phy *phy) 227 { 228 struct mt7915_dev *dev = phy->dev; 229 int ret; 230 231 cancel_delayed_work_sync(&phy->mac_work); 232 233 mutex_lock(&dev->mt76.mutex); 234 set_bit(MT76_RESET, &phy->mt76->state); 235 236 mt7915_init_dfs_state(phy); 237 mt76_set_channel(phy->mt76); 238 239 ret = mt7915_mcu_set_chan_info(phy, MCU_EXT_CMD_CHANNEL_SWITCH); 240 if (ret) 241 goto out; 242 243 mt7915_mac_set_timing(phy); 244 ret = mt7915_dfs_init_radar_detector(phy); 245 mt7915_mac_cca_stats_reset(phy); 246 247 mt7915_mac_reset_counters(phy); 248 phy->noise = 0; 249 250 out: 251 clear_bit(MT76_RESET, &phy->mt76->state); 252 mutex_unlock(&dev->mt76.mutex); 253 254 mt76_txq_schedule_all(phy->mt76); 255 ieee80211_queue_delayed_work(phy->mt76->hw, &phy->mac_work, 256 MT7915_WATCHDOG_TIME); 257 258 return ret; 259 } 260 261 static int mt7915_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, 262 struct ieee80211_vif *vif, struct ieee80211_sta *sta, 263 struct ieee80211_key_conf *key) 264 { 265 struct mt7915_dev *dev = mt7915_hw_dev(hw); 266 struct mt7915_vif *mvif = (struct mt7915_vif *)vif->drv_priv; 267 struct mt7915_sta *msta = sta ? (struct mt7915_sta *)sta->drv_priv : 268 &mvif->sta; 269 struct mt76_wcid *wcid = &msta->wcid; 270 int idx = key->keyidx; 271 272 /* The hardware does not support per-STA RX GTK, fallback 273 * to software mode for these. 274 */ 275 if ((vif->type == NL80211_IFTYPE_ADHOC || 276 vif->type == NL80211_IFTYPE_MESH_POINT) && 277 (key->cipher == WLAN_CIPHER_SUITE_TKIP || 278 key->cipher == WLAN_CIPHER_SUITE_CCMP) && 279 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) 280 return -EOPNOTSUPP; 281 282 /* fall back to sw encryption for unsupported ciphers */ 283 switch (key->cipher) { 284 case WLAN_CIPHER_SUITE_AES_CMAC: 285 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIE; 286 break; 287 case WLAN_CIPHER_SUITE_WEP40: 288 case WLAN_CIPHER_SUITE_WEP104: 289 case WLAN_CIPHER_SUITE_TKIP: 290 case WLAN_CIPHER_SUITE_CCMP: 291 case WLAN_CIPHER_SUITE_CCMP_256: 292 case WLAN_CIPHER_SUITE_GCMP: 293 case WLAN_CIPHER_SUITE_GCMP_256: 294 case WLAN_CIPHER_SUITE_SMS4: 295 break; 296 default: 297 return -EOPNOTSUPP; 298 } 299 300 if (cmd == SET_KEY) { 301 key->hw_key_idx = wcid->idx; 302 wcid->hw_key_idx = idx; 303 } else if (idx == wcid->hw_key_idx) { 304 wcid->hw_key_idx = -1; 305 } 306 mt76_wcid_key_setup(&dev->mt76, wcid, 307 cmd == SET_KEY ? key : NULL); 308 309 return mt7915_mcu_add_key(dev, vif, msta, key, cmd); 310 } 311 312 static int mt7915_config(struct ieee80211_hw *hw, u32 changed) 313 { 314 struct mt7915_dev *dev = mt7915_hw_dev(hw); 315 struct mt7915_phy *phy = mt7915_hw_phy(hw); 316 bool band = phy != &dev->phy; 317 int ret; 318 319 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { 320 ieee80211_stop_queues(hw); 321 ret = mt7915_set_channel(phy); 322 if (ret) 323 return ret; 324 ieee80211_wake_queues(hw); 325 } 326 327 if (changed & IEEE80211_CONF_CHANGE_POWER) { 328 ret = mt7915_mcu_set_sku(phy); 329 if (ret) 330 return ret; 331 } 332 333 mutex_lock(&dev->mt76.mutex); 334 335 if (changed & IEEE80211_CONF_CHANGE_MONITOR) { 336 if (!(hw->conf.flags & IEEE80211_CONF_MONITOR)) 337 phy->rxfilter |= MT_WF_RFCR_DROP_OTHER_UC; 338 else 339 phy->rxfilter &= ~MT_WF_RFCR_DROP_OTHER_UC; 340 341 mt76_wr(dev, MT_WF_RFCR(band), phy->rxfilter); 342 } 343 344 mutex_unlock(&dev->mt76.mutex); 345 346 return 0; 347 } 348 349 static int 350 mt7915_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif, u16 queue, 351 const struct ieee80211_tx_queue_params *params) 352 { 353 struct mt7915_vif *mvif = (struct mt7915_vif *)vif->drv_priv; 354 355 /* no need to update right away, we'll get BSS_CHANGED_QOS */ 356 mvif->wmm[queue].cw_min = params->cw_min; 357 mvif->wmm[queue].cw_max = params->cw_max; 358 mvif->wmm[queue].aifs = params->aifs; 359 mvif->wmm[queue].txop = params->txop; 360 361 return 0; 362 } 363 364 static void mt7915_configure_filter(struct ieee80211_hw *hw, 365 unsigned int changed_flags, 366 unsigned int *total_flags, 367 u64 multicast) 368 { 369 struct mt7915_dev *dev = mt7915_hw_dev(hw); 370 struct mt7915_phy *phy = mt7915_hw_phy(hw); 371 bool band = phy != &dev->phy; 372 373 u32 ctl_flags = MT_WF_RFCR1_DROP_ACK | 374 MT_WF_RFCR1_DROP_BF_POLL | 375 MT_WF_RFCR1_DROP_BA | 376 MT_WF_RFCR1_DROP_CFEND | 377 MT_WF_RFCR1_DROP_CFACK; 378 u32 flags = 0; 379 380 #define MT76_FILTER(_flag, _hw) do { \ 381 flags |= *total_flags & FIF_##_flag; \ 382 phy->rxfilter &= ~(_hw); \ 383 phy->rxfilter |= !(flags & FIF_##_flag) * (_hw); \ 384 } while (0) 385 386 phy->rxfilter &= ~(MT_WF_RFCR_DROP_OTHER_BSS | 387 MT_WF_RFCR_DROP_OTHER_BEACON | 388 MT_WF_RFCR_DROP_FRAME_REPORT | 389 MT_WF_RFCR_DROP_PROBEREQ | 390 MT_WF_RFCR_DROP_MCAST_FILTERED | 391 MT_WF_RFCR_DROP_MCAST | 392 MT_WF_RFCR_DROP_BCAST | 393 MT_WF_RFCR_DROP_DUPLICATE | 394 MT_WF_RFCR_DROP_A2_BSSID | 395 MT_WF_RFCR_DROP_UNWANTED_CTL | 396 MT_WF_RFCR_DROP_STBC_MULTI); 397 398 MT76_FILTER(OTHER_BSS, MT_WF_RFCR_DROP_OTHER_TIM | 399 MT_WF_RFCR_DROP_A3_MAC | 400 MT_WF_RFCR_DROP_A3_BSSID); 401 402 MT76_FILTER(FCSFAIL, MT_WF_RFCR_DROP_FCSFAIL); 403 404 MT76_FILTER(CONTROL, MT_WF_RFCR_DROP_CTS | 405 MT_WF_RFCR_DROP_RTS | 406 MT_WF_RFCR_DROP_CTL_RSV | 407 MT_WF_RFCR_DROP_NDPA); 408 409 *total_flags = flags; 410 mt76_wr(dev, MT_WF_RFCR(band), phy->rxfilter); 411 412 if (*total_flags & FIF_CONTROL) 413 mt76_clear(dev, MT_WF_RFCR1(band), ctl_flags); 414 else 415 mt76_set(dev, MT_WF_RFCR1(band), ctl_flags); 416 } 417 418 static void mt7915_bss_info_changed(struct ieee80211_hw *hw, 419 struct ieee80211_vif *vif, 420 struct ieee80211_bss_conf *info, 421 u32 changed) 422 { 423 struct mt7915_phy *phy = mt7915_hw_phy(hw); 424 struct mt7915_dev *dev = mt7915_hw_dev(hw); 425 426 mutex_lock(&dev->mt76.mutex); 427 428 /* 429 * station mode uses BSSID to map the wlan entry to a peer, 430 * and then peer references bss_info_rfch to set bandwidth cap. 431 */ 432 if (changed & BSS_CHANGED_BSSID && 433 vif->type == NL80211_IFTYPE_STATION) { 434 bool join = !is_zero_ether_addr(info->bssid); 435 436 mt7915_mcu_add_bss_info(phy, vif, join); 437 mt7915_mcu_add_sta(dev, vif, NULL, join); 438 } 439 440 if (changed & BSS_CHANGED_ASSOC) { 441 mt7915_mcu_add_bss_info(phy, vif, info->assoc); 442 mt7915_mcu_add_obss_spr(dev, vif, info->he_obss_pd.enable); 443 } 444 445 if (changed & BSS_CHANGED_ERP_SLOT) { 446 int slottime = info->use_short_slot ? 9 : 20; 447 448 if (slottime != phy->slottime) { 449 phy->slottime = slottime; 450 mt7915_mac_set_timing(phy); 451 } 452 } 453 454 if (changed & BSS_CHANGED_BEACON_ENABLED) { 455 mt7915_mcu_add_bss_info(phy, vif, info->enable_beacon); 456 mt7915_mcu_add_sta(dev, vif, NULL, info->enable_beacon); 457 } 458 459 /* ensure that enable txcmd_mode after bss_info */ 460 if (changed & (BSS_CHANGED_QOS | BSS_CHANGED_BEACON_ENABLED)) 461 mt7915_mcu_set_tx(dev, vif); 462 463 if (changed & BSS_CHANGED_HE_OBSS_PD) 464 mt7915_mcu_add_obss_spr(dev, vif, info->he_obss_pd.enable); 465 466 if (changed & (BSS_CHANGED_BEACON | 467 BSS_CHANGED_BEACON_ENABLED)) 468 mt7915_mcu_add_beacon(hw, vif, info->enable_beacon); 469 470 mutex_unlock(&dev->mt76.mutex); 471 } 472 473 static void 474 mt7915_channel_switch_beacon(struct ieee80211_hw *hw, 475 struct ieee80211_vif *vif, 476 struct cfg80211_chan_def *chandef) 477 { 478 struct mt7915_dev *dev = mt7915_hw_dev(hw); 479 480 mutex_lock(&dev->mt76.mutex); 481 mt7915_mcu_add_beacon(hw, vif, true); 482 mutex_unlock(&dev->mt76.mutex); 483 } 484 485 int mt7915_mac_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif, 486 struct ieee80211_sta *sta) 487 { 488 struct mt7915_dev *dev = container_of(mdev, struct mt7915_dev, mt76); 489 struct mt7915_sta *msta = (struct mt7915_sta *)sta->drv_priv; 490 struct mt7915_vif *mvif = (struct mt7915_vif *)vif->drv_priv; 491 int ret, idx; 492 493 idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7915_WTBL_STA - 1); 494 if (idx < 0) 495 return -ENOSPC; 496 497 INIT_LIST_HEAD(&msta->poll_list); 498 INIT_WORK(&msta->stats_work, mt7915_mac_sta_stats_work); 499 spin_lock_init(&msta->ampdu_lock); 500 msta->vif = mvif; 501 msta->wcid.sta = 1; 502 msta->wcid.idx = idx; 503 msta->wcid.ext_phy = mvif->band_idx; 504 msta->wcid.tx_info |= MT_WCID_TX_INFO_SET; 505 msta->stats.jiffies = jiffies; 506 507 mt7915_mac_wtbl_update(dev, idx, 508 MT_WTBL_UPDATE_ADM_COUNT_CLEAR); 509 510 ret = mt7915_mcu_add_sta(dev, vif, sta, true); 511 if (ret) 512 return ret; 513 514 return mt7915_mcu_add_sta_adv(dev, vif, sta, true); 515 } 516 517 void mt7915_mac_sta_remove(struct mt76_dev *mdev, struct ieee80211_vif *vif, 518 struct ieee80211_sta *sta) 519 { 520 struct mt7915_dev *dev = container_of(mdev, struct mt7915_dev, mt76); 521 struct mt7915_sta *msta = (struct mt7915_sta *)sta->drv_priv; 522 523 mt7915_mcu_add_sta_adv(dev, vif, sta, false); 524 mt7915_mcu_add_sta(dev, vif, sta, false); 525 526 mt7915_mac_wtbl_update(dev, msta->wcid.idx, 527 MT_WTBL_UPDATE_ADM_COUNT_CLEAR); 528 529 spin_lock_bh(&dev->sta_poll_lock); 530 if (!list_empty(&msta->poll_list)) 531 list_del_init(&msta->poll_list); 532 spin_unlock_bh(&dev->sta_poll_lock); 533 } 534 535 static void mt7915_tx(struct ieee80211_hw *hw, 536 struct ieee80211_tx_control *control, 537 struct sk_buff *skb) 538 { 539 struct mt7915_dev *dev = mt7915_hw_dev(hw); 540 struct mt76_phy *mphy = hw->priv; 541 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 542 struct ieee80211_vif *vif = info->control.vif; 543 struct mt76_wcid *wcid = &dev->mt76.global_wcid; 544 545 if (control->sta) { 546 struct mt7915_sta *sta; 547 548 sta = (struct mt7915_sta *)control->sta->drv_priv; 549 wcid = &sta->wcid; 550 } 551 552 if (vif && !control->sta) { 553 struct mt7915_vif *mvif; 554 555 mvif = (struct mt7915_vif *)vif->drv_priv; 556 wcid = &mvif->sta.wcid; 557 } 558 559 mt76_tx(mphy, control->sta, wcid, skb); 560 } 561 562 static int mt7915_set_rts_threshold(struct ieee80211_hw *hw, u32 val) 563 { 564 struct mt7915_dev *dev = mt7915_hw_dev(hw); 565 struct mt7915_phy *phy = mt7915_hw_phy(hw); 566 567 mutex_lock(&dev->mt76.mutex); 568 mt7915_mcu_set_rts_thresh(phy, val); 569 mutex_unlock(&dev->mt76.mutex); 570 571 return 0; 572 } 573 574 static int 575 mt7915_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 576 struct ieee80211_ampdu_params *params) 577 { 578 enum ieee80211_ampdu_mlme_action action = params->action; 579 struct mt7915_dev *dev = mt7915_hw_dev(hw); 580 struct ieee80211_sta *sta = params->sta; 581 struct ieee80211_txq *txq = sta->txq[params->tid]; 582 struct mt7915_sta *msta = (struct mt7915_sta *)sta->drv_priv; 583 u16 tid = params->tid; 584 u16 ssn = params->ssn; 585 struct mt76_txq *mtxq; 586 int ret = 0; 587 588 if (!txq) 589 return -EINVAL; 590 591 mtxq = (struct mt76_txq *)txq->drv_priv; 592 593 mutex_lock(&dev->mt76.mutex); 594 switch (action) { 595 case IEEE80211_AMPDU_RX_START: 596 mt76_rx_aggr_start(&dev->mt76, &msta->wcid, tid, ssn, 597 params->buf_size); 598 mt7915_mcu_add_rx_ba(dev, params, true); 599 break; 600 case IEEE80211_AMPDU_RX_STOP: 601 mt76_rx_aggr_stop(&dev->mt76, &msta->wcid, tid); 602 mt7915_mcu_add_rx_ba(dev, params, false); 603 break; 604 case IEEE80211_AMPDU_TX_OPERATIONAL: 605 mtxq->aggr = true; 606 mtxq->send_bar = false; 607 mt7915_set_aggr_state(msta, tid, MT7915_AGGR_OPERATIONAL); 608 mt7915_mcu_add_tx_ba(dev, params, true); 609 break; 610 case IEEE80211_AMPDU_TX_STOP_FLUSH: 611 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 612 mtxq->aggr = false; 613 mt7915_set_aggr_state(msta, tid, MT7915_AGGR_STOP); 614 mt7915_mcu_add_tx_ba(dev, params, false); 615 break; 616 case IEEE80211_AMPDU_TX_START: 617 mtxq->agg_ssn = IEEE80211_SN_TO_SEQ(ssn); 618 mt7915_set_aggr_state(msta, tid, MT7915_AGGR_START); 619 ret = IEEE80211_AMPDU_TX_START_IMMEDIATE; 620 break; 621 case IEEE80211_AMPDU_TX_STOP_CONT: 622 mtxq->aggr = false; 623 mt7915_set_aggr_state(msta, tid, MT7915_AGGR_STOP); 624 mt7915_mcu_add_tx_ba(dev, params, false); 625 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 626 break; 627 } 628 mutex_unlock(&dev->mt76.mutex); 629 630 return ret; 631 } 632 633 static int 634 mt7915_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 635 struct ieee80211_sta *sta) 636 { 637 return mt76_sta_state(hw, vif, sta, IEEE80211_STA_NOTEXIST, 638 IEEE80211_STA_NONE); 639 } 640 641 static int 642 mt7915_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 643 struct ieee80211_sta *sta) 644 { 645 return mt76_sta_state(hw, vif, sta, IEEE80211_STA_NONE, 646 IEEE80211_STA_NOTEXIST); 647 } 648 649 static int 650 mt7915_get_stats(struct ieee80211_hw *hw, 651 struct ieee80211_low_level_stats *stats) 652 { 653 struct mt7915_phy *phy = mt7915_hw_phy(hw); 654 struct mib_stats *mib = &phy->mib; 655 656 stats->dot11RTSSuccessCount = mib->rts_cnt; 657 stats->dot11RTSFailureCount = mib->rts_retries_cnt; 658 stats->dot11FCSErrorCount = mib->fcs_err_cnt; 659 stats->dot11ACKFailureCount = mib->ack_fail_cnt; 660 661 return 0; 662 } 663 664 static u64 665 mt7915_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif) 666 { 667 struct mt7915_vif *mvif = (struct mt7915_vif *)vif->drv_priv; 668 struct mt7915_dev *dev = mt7915_hw_dev(hw); 669 struct mt7915_phy *phy = mt7915_hw_phy(hw); 670 bool band = phy != &dev->phy; 671 union { 672 u64 t64; 673 u32 t32[2]; 674 } tsf; 675 u16 n; 676 677 mutex_lock(&dev->mt76.mutex); 678 679 n = mvif->omac_idx > HW_BSSID_MAX ? HW_BSSID_0 : mvif->omac_idx; 680 /* TSF software read */ 681 mt76_set(dev, MT_LPON_TCR(band, n), MT_LPON_TCR_SW_MODE); 682 tsf.t32[0] = mt76_rr(dev, MT_LPON_UTTR0(band)); 683 tsf.t32[1] = mt76_rr(dev, MT_LPON_UTTR1(band)); 684 685 mutex_unlock(&dev->mt76.mutex); 686 687 return tsf.t64; 688 } 689 690 static void 691 mt7915_set_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 692 u64 timestamp) 693 { 694 struct mt7915_vif *mvif = (struct mt7915_vif *)vif->drv_priv; 695 struct mt7915_dev *dev = mt7915_hw_dev(hw); 696 struct mt7915_phy *phy = mt7915_hw_phy(hw); 697 bool band = phy != &dev->phy; 698 union { 699 u64 t64; 700 u32 t32[2]; 701 } tsf = { .t64 = timestamp, }; 702 u16 n; 703 704 mutex_lock(&dev->mt76.mutex); 705 706 n = mvif->omac_idx > HW_BSSID_MAX ? HW_BSSID_0 : mvif->omac_idx; 707 mt76_wr(dev, MT_LPON_UTTR0(band), tsf.t32[0]); 708 mt76_wr(dev, MT_LPON_UTTR1(band), tsf.t32[1]); 709 /* TSF software overwrite */ 710 mt76_set(dev, MT_LPON_TCR(band, n), MT_LPON_TCR_SW_WRITE); 711 712 mutex_unlock(&dev->mt76.mutex); 713 } 714 715 static void 716 mt7915_set_coverage_class(struct ieee80211_hw *hw, s16 coverage_class) 717 { 718 struct mt7915_phy *phy = mt7915_hw_phy(hw); 719 720 phy->coverage_class = max_t(s16, coverage_class, 0); 721 mt7915_mac_set_timing(phy); 722 } 723 724 static int 725 mt7915_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant) 726 { 727 struct mt7915_dev *dev = mt7915_hw_dev(hw); 728 struct mt7915_phy *phy = mt7915_hw_phy(hw); 729 int max_nss = hweight8(hw->wiphy->available_antennas_tx); 730 bool ext_phy = phy != &dev->phy; 731 732 if (!tx_ant || tx_ant != rx_ant || ffs(tx_ant) > max_nss) 733 return -EINVAL; 734 735 if ((BIT(hweight8(tx_ant)) - 1) != tx_ant) 736 tx_ant = BIT(ffs(tx_ant) - 1) - 1; 737 738 mutex_lock(&dev->mt76.mutex); 739 740 phy->mt76->antenna_mask = tx_ant; 741 742 if (ext_phy) { 743 if (dev->chainmask == 0xf) 744 tx_ant <<= 2; 745 else 746 tx_ant <<= 1; 747 } 748 phy->chainmask = tx_ant; 749 750 mt76_set_stream_caps(phy->mt76, true); 751 mt7915_set_stream_vht_txbf_caps(phy); 752 mt7915_set_stream_he_caps(phy); 753 754 mutex_unlock(&dev->mt76.mutex); 755 756 return 0; 757 } 758 759 static void mt7915_sta_statistics(struct ieee80211_hw *hw, 760 struct ieee80211_vif *vif, 761 struct ieee80211_sta *sta, 762 struct station_info *sinfo) 763 { 764 struct mt7915_sta *msta = (struct mt7915_sta *)sta->drv_priv; 765 struct mt7915_sta_stats *stats = &msta->stats; 766 767 if (!stats->tx_rate.legacy && !stats->tx_rate.flags) 768 return; 769 770 if (stats->tx_rate.legacy) { 771 sinfo->txrate.legacy = stats->tx_rate.legacy; 772 } else { 773 sinfo->txrate.mcs = stats->tx_rate.mcs; 774 sinfo->txrate.nss = stats->tx_rate.nss; 775 sinfo->txrate.bw = stats->tx_rate.bw; 776 sinfo->txrate.he_gi = stats->tx_rate.he_gi; 777 sinfo->txrate.he_dcm = stats->tx_rate.he_dcm; 778 sinfo->txrate.he_ru_alloc = stats->tx_rate.he_ru_alloc; 779 } 780 sinfo->txrate.flags = stats->tx_rate.flags; 781 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE); 782 } 783 784 static void 785 mt7915_sta_rc_update(struct ieee80211_hw *hw, 786 struct ieee80211_vif *vif, 787 struct ieee80211_sta *sta, 788 u32 changed) 789 { 790 struct mt7915_sta *msta = (struct mt7915_sta *)sta->drv_priv; 791 792 rcu_read_lock(); 793 sta = ieee80211_find_sta(vif, sta->addr); 794 if (!sta) { 795 rcu_read_unlock(); 796 return; 797 } 798 rcu_read_unlock(); 799 800 set_bit(changed, &msta->stats.changed); 801 ieee80211_queue_work(hw, &msta->stats_work); 802 } 803 804 const struct ieee80211_ops mt7915_ops = { 805 .tx = mt7915_tx, 806 .start = mt7915_start, 807 .stop = mt7915_stop, 808 .add_interface = mt7915_add_interface, 809 .remove_interface = mt7915_remove_interface, 810 .config = mt7915_config, 811 .conf_tx = mt7915_conf_tx, 812 .configure_filter = mt7915_configure_filter, 813 .bss_info_changed = mt7915_bss_info_changed, 814 .sta_add = mt7915_sta_add, 815 .sta_remove = mt7915_sta_remove, 816 .sta_pre_rcu_remove = mt76_sta_pre_rcu_remove, 817 .sta_rc_update = mt7915_sta_rc_update, 818 .set_key = mt7915_set_key, 819 .ampdu_action = mt7915_ampdu_action, 820 .set_rts_threshold = mt7915_set_rts_threshold, 821 .wake_tx_queue = mt76_wake_tx_queue, 822 .sw_scan_start = mt76_sw_scan, 823 .sw_scan_complete = mt76_sw_scan_complete, 824 .release_buffered_frames = mt76_release_buffered_frames, 825 .get_txpower = mt76_get_txpower, 826 .channel_switch_beacon = mt7915_channel_switch_beacon, 827 .get_stats = mt7915_get_stats, 828 .get_tsf = mt7915_get_tsf, 829 .set_tsf = mt7915_set_tsf, 830 .get_survey = mt76_get_survey, 831 .get_antenna = mt76_get_antenna, 832 .set_antenna = mt7915_set_antenna, 833 .set_coverage_class = mt7915_set_coverage_class, 834 .sta_statistics = mt7915_sta_statistics, 835 #ifdef CONFIG_MAC80211_DEBUGFS 836 .sta_add_debugfs = mt7915_sta_add_debugfs, 837 #endif 838 }; 839