1 // SPDX-License-Identifier: ISC 2 /* Copyright (C) 2019 MediaTek Inc. 3 * 4 * Author: Roy Luo <royluo@google.com> 5 * Ryder Lee <ryder.lee@mediatek.com> 6 * Felix Fietkau <nbd@nbd.name> 7 * Lorenzo Bianconi <lorenzo@kernel.org> 8 */ 9 10 #include <linux/etherdevice.h> 11 #include <linux/module.h> 12 #include "mt7615.h" 13 #include "mcu.h" 14 15 static bool mt7615_dev_running(struct mt7615_dev *dev) 16 { 17 struct mt7615_phy *phy; 18 19 if (test_bit(MT76_STATE_RUNNING, &dev->mphy.state)) 20 return true; 21 22 phy = mt7615_ext_phy(dev); 23 24 return phy && test_bit(MT76_STATE_RUNNING, &phy->mt76->state); 25 } 26 27 static int mt7615_start(struct ieee80211_hw *hw) 28 { 29 struct mt7615_dev *dev = mt7615_hw_dev(hw); 30 struct mt7615_phy *phy = mt7615_hw_phy(hw); 31 bool running; 32 33 if (!mt7615_wait_for_mcu_init(dev)) 34 return -EIO; 35 36 mt7615_mutex_acquire(dev); 37 38 running = mt7615_dev_running(dev); 39 40 if (!running) { 41 mt7615_mcu_set_pm(dev, 0, 0); 42 mt76_connac_mcu_set_mac_enable(&dev->mt76, 0, true, false); 43 mt7615_mac_enable_nf(dev, 0); 44 } 45 46 if (phy != &dev->phy) { 47 mt7615_mcu_set_pm(dev, 1, 0); 48 mt76_connac_mcu_set_mac_enable(&dev->mt76, 1, true, false); 49 mt7615_mac_enable_nf(dev, 1); 50 } 51 52 if (mt7615_firmware_offload(dev)) 53 mt76_connac_mcu_set_channel_domain(phy->mt76); 54 55 mt7615_mcu_set_chan_info(phy, MCU_EXT_CMD_SET_RX_PATH); 56 57 set_bit(MT76_STATE_RUNNING, &phy->mt76->state); 58 59 ieee80211_queue_delayed_work(hw, &phy->mt76->mac_work, 60 MT7615_WATCHDOG_TIME); 61 62 if (!running) 63 mt7615_mac_reset_counters(dev); 64 65 mt7615_mutex_release(dev); 66 67 return 0; 68 } 69 70 static void mt7615_stop(struct ieee80211_hw *hw) 71 { 72 struct mt7615_dev *dev = mt7615_hw_dev(hw); 73 struct mt7615_phy *phy = mt7615_hw_phy(hw); 74 75 cancel_delayed_work_sync(&phy->mt76->mac_work); 76 del_timer_sync(&phy->roc_timer); 77 cancel_work_sync(&phy->roc_work); 78 79 cancel_delayed_work_sync(&dev->pm.ps_work); 80 cancel_work_sync(&dev->pm.wake_work); 81 82 mt76_connac_free_pending_tx_skbs(&dev->pm, NULL); 83 84 mt7615_mutex_acquire(dev); 85 86 mt76_testmode_reset(phy->mt76, true); 87 88 clear_bit(MT76_STATE_RUNNING, &phy->mt76->state); 89 cancel_delayed_work_sync(&phy->scan_work); 90 91 if (phy != &dev->phy) { 92 mt7615_mcu_set_pm(dev, 1, 1); 93 mt76_connac_mcu_set_mac_enable(&dev->mt76, 1, false, false); 94 } 95 96 if (!mt7615_dev_running(dev)) { 97 mt7615_mcu_set_pm(dev, 0, 1); 98 mt76_connac_mcu_set_mac_enable(&dev->mt76, 0, false, false); 99 } 100 101 mt7615_mutex_release(dev); 102 } 103 104 static inline int get_free_idx(u32 mask, u8 start, u8 end) 105 { 106 return ffs(~mask & GENMASK(end, start)); 107 } 108 109 static int get_omac_idx(enum nl80211_iftype type, u64 mask) 110 { 111 int i; 112 113 switch (type) { 114 case NL80211_IFTYPE_MESH_POINT: 115 case NL80211_IFTYPE_ADHOC: 116 case NL80211_IFTYPE_STATION: 117 /* prefer hw bssid slot 1-3 */ 118 i = get_free_idx(mask, HW_BSSID_1, HW_BSSID_3); 119 if (i) 120 return i - 1; 121 122 if (type != NL80211_IFTYPE_STATION) 123 break; 124 125 /* next, try to find a free repeater entry for the sta */ 126 i = get_free_idx(mask >> REPEATER_BSSID_START, 0, 127 REPEATER_BSSID_MAX - REPEATER_BSSID_START); 128 if (i) 129 return i + 32 - 1; 130 131 i = get_free_idx(mask, EXT_BSSID_1, EXT_BSSID_MAX); 132 if (i) 133 return i - 1; 134 135 if (~mask & BIT(HW_BSSID_0)) 136 return HW_BSSID_0; 137 138 break; 139 case NL80211_IFTYPE_MONITOR: 140 case NL80211_IFTYPE_AP: 141 /* ap uses hw bssid 0 and ext bssid */ 142 if (~mask & BIT(HW_BSSID_0)) 143 return HW_BSSID_0; 144 145 i = get_free_idx(mask, EXT_BSSID_1, EXT_BSSID_MAX); 146 if (i) 147 return i - 1; 148 149 break; 150 default: 151 WARN_ON(1); 152 break; 153 } 154 155 return -1; 156 } 157 158 static int mt7615_add_interface(struct ieee80211_hw *hw, 159 struct ieee80211_vif *vif) 160 { 161 struct mt7615_vif *mvif = (struct mt7615_vif *)vif->drv_priv; 162 struct mt7615_dev *dev = mt7615_hw_dev(hw); 163 struct mt7615_phy *phy = mt7615_hw_phy(hw); 164 struct mt76_txq *mtxq; 165 bool ext_phy = phy != &dev->phy; 166 int idx, ret = 0; 167 168 mt7615_mutex_acquire(dev); 169 170 mt76_testmode_reset(phy->mt76, true); 171 172 if (vif->type == NL80211_IFTYPE_MONITOR && 173 is_zero_ether_addr(vif->addr)) 174 phy->monitor_vif = vif; 175 176 mvif->mt76.idx = ffs(~dev->mt76.vif_mask) - 1; 177 if (mvif->mt76.idx >= MT7615_MAX_INTERFACES) { 178 ret = -ENOSPC; 179 goto out; 180 } 181 182 idx = get_omac_idx(vif->type, dev->omac_mask); 183 if (idx < 0) { 184 ret = -ENOSPC; 185 goto out; 186 } 187 mvif->mt76.omac_idx = idx; 188 189 mvif->mt76.band_idx = ext_phy; 190 if (mt7615_ext_phy(dev)) 191 mvif->mt76.wmm_idx = ext_phy * (MT7615_MAX_WMM_SETS / 2) + 192 mvif->mt76.idx % (MT7615_MAX_WMM_SETS / 2); 193 else 194 mvif->mt76.wmm_idx = mvif->mt76.idx % MT7615_MAX_WMM_SETS; 195 196 dev->mt76.vif_mask |= BIT(mvif->mt76.idx); 197 dev->omac_mask |= BIT_ULL(mvif->mt76.omac_idx); 198 phy->omac_mask |= BIT_ULL(mvif->mt76.omac_idx); 199 200 mt7615_mcu_set_dbdc(dev); 201 202 idx = MT7615_WTBL_RESERVED - mvif->mt76.idx; 203 204 INIT_LIST_HEAD(&mvif->sta.poll_list); 205 mvif->sta.wcid.idx = idx; 206 mvif->sta.wcid.ext_phy = mvif->mt76.band_idx; 207 mvif->sta.wcid.hw_key_idx = -1; 208 mt7615_mac_wtbl_update(dev, idx, 209 MT_WTBL_UPDATE_ADM_COUNT_CLEAR); 210 211 rcu_assign_pointer(dev->mt76.wcid[idx], &mvif->sta.wcid); 212 if (vif->txq) { 213 mtxq = (struct mt76_txq *)vif->txq->drv_priv; 214 mtxq->wcid = &mvif->sta.wcid; 215 } 216 217 ret = mt7615_mcu_add_dev_info(phy, vif, true); 218 if (ret) 219 goto out; 220 221 mt7615_mac_set_beacon_filter(phy, vif, true); 222 out: 223 mt7615_mutex_release(dev); 224 225 return ret; 226 } 227 228 static void mt7615_remove_interface(struct ieee80211_hw *hw, 229 struct ieee80211_vif *vif) 230 { 231 struct mt7615_vif *mvif = (struct mt7615_vif *)vif->drv_priv; 232 struct mt7615_sta *msta = &mvif->sta; 233 struct mt7615_dev *dev = mt7615_hw_dev(hw); 234 struct mt7615_phy *phy = mt7615_hw_phy(hw); 235 int idx = msta->wcid.idx; 236 237 /* TODO: disable beacon for the bss */ 238 239 mt7615_mutex_acquire(dev); 240 241 mt76_testmode_reset(phy->mt76, true); 242 if (vif == phy->monitor_vif) 243 phy->monitor_vif = NULL; 244 245 mt76_connac_free_pending_tx_skbs(&dev->pm, &msta->wcid); 246 247 mt7615_mac_set_beacon_filter(phy, vif, false); 248 mt7615_mcu_add_dev_info(phy, vif, false); 249 250 rcu_assign_pointer(dev->mt76.wcid[idx], NULL); 251 252 dev->mt76.vif_mask &= ~BIT(mvif->mt76.idx); 253 dev->omac_mask &= ~BIT_ULL(mvif->mt76.omac_idx); 254 phy->omac_mask &= ~BIT_ULL(mvif->mt76.omac_idx); 255 256 mt7615_mutex_release(dev); 257 258 spin_lock_bh(&dev->sta_poll_lock); 259 if (!list_empty(&msta->poll_list)) 260 list_del_init(&msta->poll_list); 261 spin_unlock_bh(&dev->sta_poll_lock); 262 } 263 264 static void mt7615_init_dfs_state(struct mt7615_phy *phy) 265 { 266 struct mt76_phy *mphy = phy->mt76; 267 struct ieee80211_hw *hw = mphy->hw; 268 struct cfg80211_chan_def *chandef = &hw->conf.chandef; 269 270 if (hw->conf.flags & IEEE80211_CONF_OFFCHANNEL) 271 return; 272 273 if (!(chandef->chan->flags & IEEE80211_CHAN_RADAR)) 274 return; 275 276 if (mphy->chandef.chan->center_freq == chandef->chan->center_freq && 277 mphy->chandef.width == chandef->width) 278 return; 279 280 phy->dfs_state = -1; 281 } 282 283 int mt7615_set_channel(struct mt7615_phy *phy) 284 { 285 struct mt7615_dev *dev = phy->dev; 286 bool ext_phy = phy != &dev->phy; 287 int ret; 288 289 cancel_delayed_work_sync(&phy->mt76->mac_work); 290 291 mt7615_mutex_acquire(dev); 292 293 set_bit(MT76_RESET, &phy->mt76->state); 294 295 mt7615_init_dfs_state(phy); 296 mt76_set_channel(phy->mt76); 297 298 if (is_mt7615(&dev->mt76) && dev->flash_eeprom) { 299 mt7615_mcu_apply_rx_dcoc(phy); 300 mt7615_mcu_apply_tx_dpd(phy); 301 } 302 303 ret = mt7615_mcu_set_chan_info(phy, MCU_EXT_CMD_CHANNEL_SWITCH); 304 if (ret) 305 goto out; 306 307 mt7615_mac_set_timing(phy); 308 ret = mt7615_dfs_init_radar_detector(phy); 309 mt7615_mac_cca_stats_reset(phy); 310 mt7615_mcu_set_sku_en(phy, true); 311 312 mt7615_mac_reset_counters(dev); 313 phy->noise = 0; 314 phy->chfreq = mt76_rr(dev, MT_CHFREQ(ext_phy)); 315 316 out: 317 clear_bit(MT76_RESET, &phy->mt76->state); 318 319 mt7615_mutex_release(dev); 320 321 mt76_txq_schedule_all(phy->mt76); 322 323 if (!mt76_testmode_enabled(phy->mt76)) 324 ieee80211_queue_delayed_work(phy->mt76->hw, 325 &phy->mt76->mac_work, 326 MT7615_WATCHDOG_TIME); 327 328 return ret; 329 } 330 331 static int mt7615_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, 332 struct ieee80211_vif *vif, struct ieee80211_sta *sta, 333 struct ieee80211_key_conf *key) 334 { 335 struct mt7615_dev *dev = mt7615_hw_dev(hw); 336 struct mt7615_vif *mvif = (struct mt7615_vif *)vif->drv_priv; 337 struct mt7615_sta *msta = sta ? (struct mt7615_sta *)sta->drv_priv : 338 &mvif->sta; 339 struct mt76_wcid *wcid = &msta->wcid; 340 int idx = key->keyidx, err; 341 342 /* The hardware does not support per-STA RX GTK, fallback 343 * to software mode for these. 344 */ 345 if ((vif->type == NL80211_IFTYPE_ADHOC || 346 vif->type == NL80211_IFTYPE_MESH_POINT) && 347 (key->cipher == WLAN_CIPHER_SUITE_TKIP || 348 key->cipher == WLAN_CIPHER_SUITE_CCMP) && 349 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) 350 return -EOPNOTSUPP; 351 352 /* fall back to sw encryption for unsupported ciphers */ 353 switch (key->cipher) { 354 case WLAN_CIPHER_SUITE_AES_CMAC: 355 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIE; 356 break; 357 case WLAN_CIPHER_SUITE_TKIP: 358 case WLAN_CIPHER_SUITE_CCMP: 359 case WLAN_CIPHER_SUITE_CCMP_256: 360 case WLAN_CIPHER_SUITE_GCMP: 361 case WLAN_CIPHER_SUITE_GCMP_256: 362 case WLAN_CIPHER_SUITE_SMS4: 363 break; 364 case WLAN_CIPHER_SUITE_WEP40: 365 case WLAN_CIPHER_SUITE_WEP104: 366 default: 367 return -EOPNOTSUPP; 368 } 369 370 mt7615_mutex_acquire(dev); 371 372 if (cmd == SET_KEY) { 373 key->hw_key_idx = wcid->idx; 374 wcid->hw_key_idx = idx; 375 } else if (idx == wcid->hw_key_idx) { 376 wcid->hw_key_idx = -1; 377 } 378 mt76_wcid_key_setup(&dev->mt76, wcid, 379 cmd == SET_KEY ? key : NULL); 380 381 if (mt76_is_mmio(&dev->mt76)) 382 err = mt7615_mac_wtbl_set_key(dev, wcid, key, cmd); 383 else 384 err = __mt7615_mac_wtbl_set_key(dev, wcid, key, cmd); 385 386 mt7615_mutex_release(dev); 387 388 return err; 389 } 390 391 static int mt7615_config(struct ieee80211_hw *hw, u32 changed) 392 { 393 struct mt7615_dev *dev = mt7615_hw_dev(hw); 394 struct mt7615_phy *phy = mt7615_hw_phy(hw); 395 bool band = phy != &dev->phy; 396 int ret = 0; 397 398 if (changed & (IEEE80211_CONF_CHANGE_CHANNEL | 399 IEEE80211_CONF_CHANGE_POWER)) { 400 #ifdef CONFIG_NL80211_TESTMODE 401 if (phy->mt76->test.state != MT76_TM_STATE_OFF) { 402 mt7615_mutex_acquire(dev); 403 mt76_testmode_reset(phy->mt76, false); 404 mt7615_mutex_release(dev); 405 } 406 #endif 407 ieee80211_stop_queues(hw); 408 ret = mt7615_set_channel(phy); 409 ieee80211_wake_queues(hw); 410 } 411 412 mt7615_mutex_acquire(dev); 413 414 if (changed & IEEE80211_CONF_CHANGE_MONITOR) { 415 mt76_testmode_reset(phy->mt76, true); 416 417 if (!(hw->conf.flags & IEEE80211_CONF_MONITOR)) 418 phy->rxfilter |= MT_WF_RFCR_DROP_OTHER_UC; 419 else 420 phy->rxfilter &= ~MT_WF_RFCR_DROP_OTHER_UC; 421 422 mt76_wr(dev, MT_WF_RFCR(band), phy->rxfilter); 423 } 424 425 mt7615_mutex_release(dev); 426 427 return ret; 428 } 429 430 static int 431 mt7615_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif, u16 queue, 432 const struct ieee80211_tx_queue_params *params) 433 { 434 struct mt76_vif *mvif = (struct mt76_vif *)vif->drv_priv; 435 struct mt7615_dev *dev = mt7615_hw_dev(hw); 436 int err; 437 438 mt7615_mutex_acquire(dev); 439 440 queue = mt7615_lmac_mapping(dev, queue); 441 queue += mvif->wmm_idx * MT7615_MAX_WMM_SETS; 442 err = mt7615_mcu_set_wmm(dev, queue, params); 443 444 mt7615_mutex_release(dev); 445 446 return err; 447 } 448 449 static void mt7615_configure_filter(struct ieee80211_hw *hw, 450 unsigned int changed_flags, 451 unsigned int *total_flags, 452 u64 multicast) 453 { 454 struct mt7615_dev *dev = mt7615_hw_dev(hw); 455 struct mt7615_phy *phy = mt7615_hw_phy(hw); 456 bool band = phy != &dev->phy; 457 458 u32 ctl_flags = MT_WF_RFCR1_DROP_ACK | 459 MT_WF_RFCR1_DROP_BF_POLL | 460 MT_WF_RFCR1_DROP_BA | 461 MT_WF_RFCR1_DROP_CFEND | 462 MT_WF_RFCR1_DROP_CFACK; 463 u32 flags = 0; 464 465 mt7615_mutex_acquire(dev); 466 467 #define MT76_FILTER(_flag, _hw) do { \ 468 flags |= *total_flags & FIF_##_flag; \ 469 phy->rxfilter &= ~(_hw); \ 470 if (!mt76_testmode_enabled(phy->mt76)) \ 471 phy->rxfilter |= !(flags & FIF_##_flag) * (_hw);\ 472 } while (0) 473 474 phy->rxfilter &= ~(MT_WF_RFCR_DROP_OTHER_BSS | 475 MT_WF_RFCR_DROP_FRAME_REPORT | 476 MT_WF_RFCR_DROP_PROBEREQ | 477 MT_WF_RFCR_DROP_MCAST_FILTERED | 478 MT_WF_RFCR_DROP_MCAST | 479 MT_WF_RFCR_DROP_BCAST | 480 MT_WF_RFCR_DROP_DUPLICATE | 481 MT_WF_RFCR_DROP_A2_BSSID | 482 MT_WF_RFCR_DROP_UNWANTED_CTL | 483 MT_WF_RFCR_DROP_STBC_MULTI); 484 485 if (phy->n_beacon_vif || !mt7615_firmware_offload(dev)) 486 phy->rxfilter &= ~MT_WF_RFCR_DROP_OTHER_BEACON; 487 488 MT76_FILTER(OTHER_BSS, MT_WF_RFCR_DROP_OTHER_TIM | 489 MT_WF_RFCR_DROP_A3_MAC | 490 MT_WF_RFCR_DROP_A3_BSSID); 491 492 MT76_FILTER(FCSFAIL, MT_WF_RFCR_DROP_FCSFAIL); 493 494 MT76_FILTER(CONTROL, MT_WF_RFCR_DROP_CTS | 495 MT_WF_RFCR_DROP_RTS | 496 MT_WF_RFCR_DROP_CTL_RSV | 497 MT_WF_RFCR_DROP_NDPA); 498 499 *total_flags = flags; 500 mt76_wr(dev, MT_WF_RFCR(band), phy->rxfilter); 501 502 if (*total_flags & FIF_CONTROL) 503 mt76_clear(dev, MT_WF_RFCR1(band), ctl_flags); 504 else 505 mt76_set(dev, MT_WF_RFCR1(band), ctl_flags); 506 507 mt7615_mutex_release(dev); 508 } 509 510 static void mt7615_bss_info_changed(struct ieee80211_hw *hw, 511 struct ieee80211_vif *vif, 512 struct ieee80211_bss_conf *info, 513 u32 changed) 514 { 515 struct mt7615_dev *dev = mt7615_hw_dev(hw); 516 struct mt7615_phy *phy = mt7615_hw_phy(hw); 517 518 mt7615_mutex_acquire(dev); 519 520 if (changed & BSS_CHANGED_ERP_SLOT) { 521 int slottime = info->use_short_slot ? 9 : 20; 522 523 if (slottime != phy->slottime) { 524 phy->slottime = slottime; 525 mt7615_mac_set_timing(phy); 526 } 527 } 528 529 if (changed & BSS_CHANGED_BEACON_ENABLED) { 530 mt7615_mcu_add_bss_info(phy, vif, NULL, info->enable_beacon); 531 mt7615_mcu_sta_add(phy, vif, NULL, info->enable_beacon); 532 533 if (vif->p2p && info->enable_beacon) 534 mt7615_mcu_set_p2p_oppps(hw, vif); 535 } 536 537 if (changed & (BSS_CHANGED_BEACON | 538 BSS_CHANGED_BEACON_ENABLED)) 539 mt7615_mcu_add_beacon(dev, hw, vif, info->enable_beacon); 540 541 if (changed & BSS_CHANGED_PS) 542 mt76_connac_mcu_set_vif_ps(&dev->mt76, vif); 543 544 if (changed & BSS_CHANGED_ARP_FILTER) 545 mt7615_mcu_update_arp_filter(hw, vif, info); 546 547 mt7615_mutex_release(dev); 548 } 549 550 static void 551 mt7615_channel_switch_beacon(struct ieee80211_hw *hw, 552 struct ieee80211_vif *vif, 553 struct cfg80211_chan_def *chandef) 554 { 555 struct mt7615_dev *dev = mt7615_hw_dev(hw); 556 557 mt7615_mutex_acquire(dev); 558 mt7615_mcu_add_beacon(dev, hw, vif, true); 559 mt7615_mutex_release(dev); 560 } 561 562 int mt7615_mac_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif, 563 struct ieee80211_sta *sta) 564 { 565 struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76); 566 struct mt7615_sta *msta = (struct mt7615_sta *)sta->drv_priv; 567 struct mt7615_vif *mvif = (struct mt7615_vif *)vif->drv_priv; 568 struct mt7615_phy *phy; 569 int idx, err; 570 571 idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7615_WTBL_STA - 1); 572 if (idx < 0) 573 return -ENOSPC; 574 575 INIT_LIST_HEAD(&msta->poll_list); 576 msta->vif = mvif; 577 msta->wcid.sta = 1; 578 msta->wcid.idx = idx; 579 msta->wcid.ext_phy = mvif->mt76.band_idx; 580 581 phy = mvif->mt76.band_idx ? mt7615_ext_phy(dev) : &dev->phy; 582 err = mt76_connac_pm_wake(phy->mt76, &dev->pm); 583 if (err) 584 return err; 585 586 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 587 mt7615_mcu_add_bss_info(phy, vif, sta, true); 588 mt7615_mac_wtbl_update(dev, idx, 589 MT_WTBL_UPDATE_ADM_COUNT_CLEAR); 590 mt7615_mcu_sta_add(&dev->phy, vif, sta, true); 591 592 mt76_connac_power_save_sched(phy->mt76, &dev->pm); 593 594 return 0; 595 } 596 EXPORT_SYMBOL_GPL(mt7615_mac_sta_add); 597 598 void mt7615_mac_sta_remove(struct mt76_dev *mdev, struct ieee80211_vif *vif, 599 struct ieee80211_sta *sta) 600 { 601 struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76); 602 struct mt7615_sta *msta = (struct mt7615_sta *)sta->drv_priv; 603 struct mt7615_vif *mvif = (struct mt7615_vif *)vif->drv_priv; 604 struct mt7615_phy *phy; 605 606 mt76_connac_free_pending_tx_skbs(&dev->pm, &msta->wcid); 607 608 phy = mvif->mt76.band_idx ? mt7615_ext_phy(dev) : &dev->phy; 609 mt76_connac_pm_wake(phy->mt76, &dev->pm); 610 611 mt7615_mcu_sta_add(&dev->phy, vif, sta, false); 612 mt7615_mac_wtbl_update(dev, msta->wcid.idx, 613 MT_WTBL_UPDATE_ADM_COUNT_CLEAR); 614 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 615 mt7615_mcu_add_bss_info(phy, vif, sta, false); 616 617 spin_lock_bh(&dev->sta_poll_lock); 618 if (!list_empty(&msta->poll_list)) 619 list_del_init(&msta->poll_list); 620 spin_unlock_bh(&dev->sta_poll_lock); 621 622 mt76_connac_power_save_sched(phy->mt76, &dev->pm); 623 } 624 EXPORT_SYMBOL_GPL(mt7615_mac_sta_remove); 625 626 static void mt7615_sta_rate_tbl_update(struct ieee80211_hw *hw, 627 struct ieee80211_vif *vif, 628 struct ieee80211_sta *sta) 629 { 630 struct mt7615_dev *dev = mt7615_hw_dev(hw); 631 struct mt7615_phy *phy = mt7615_hw_phy(hw); 632 struct mt7615_sta *msta = (struct mt7615_sta *)sta->drv_priv; 633 struct ieee80211_sta_rates *sta_rates = rcu_dereference(sta->rates); 634 int i; 635 636 spin_lock_bh(&dev->mt76.lock); 637 for (i = 0; i < ARRAY_SIZE(msta->rates); i++) { 638 msta->rates[i].idx = sta_rates->rate[i].idx; 639 msta->rates[i].count = sta_rates->rate[i].count; 640 msta->rates[i].flags = sta_rates->rate[i].flags; 641 642 if (msta->rates[i].idx < 0 || !msta->rates[i].count) 643 break; 644 } 645 msta->n_rates = i; 646 if (!test_bit(MT76_STATE_PM, &phy->mt76->state)) 647 mt7615_mac_set_rates(phy, msta, NULL, msta->rates); 648 spin_unlock_bh(&dev->mt76.lock); 649 } 650 651 static void 652 mt7615_wake_tx_queue(struct ieee80211_hw *hw, struct ieee80211_txq *txq) 653 { 654 struct mt7615_dev *dev = mt7615_hw_dev(hw); 655 struct mt7615_phy *phy = mt7615_hw_phy(hw); 656 struct mt76_phy *mphy = phy->mt76; 657 658 if (!test_bit(MT76_STATE_RUNNING, &mphy->state)) 659 return; 660 661 if (test_bit(MT76_STATE_PM, &mphy->state)) { 662 queue_work(dev->mt76.wq, &dev->pm.wake_work); 663 return; 664 } 665 666 dev->pm.last_activity = jiffies; 667 mt76_worker_schedule(&dev->mt76.tx_worker); 668 } 669 670 static void mt7615_tx(struct ieee80211_hw *hw, 671 struct ieee80211_tx_control *control, 672 struct sk_buff *skb) 673 { 674 struct mt7615_dev *dev = mt7615_hw_dev(hw); 675 struct mt76_phy *mphy = hw->priv; 676 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 677 struct ieee80211_vif *vif = info->control.vif; 678 struct mt76_wcid *wcid = &dev->mt76.global_wcid; 679 struct mt7615_sta *msta = NULL; 680 int qid; 681 682 if (control->sta) { 683 msta = (struct mt7615_sta *)control->sta->drv_priv; 684 wcid = &msta->wcid; 685 } 686 687 if (vif && !control->sta) { 688 struct mt7615_vif *mvif; 689 690 mvif = (struct mt7615_vif *)vif->drv_priv; 691 msta = &mvif->sta; 692 wcid = &msta->wcid; 693 } 694 695 if (!test_bit(MT76_STATE_PM, &mphy->state)) { 696 dev->pm.last_activity = jiffies; 697 mt76_tx(mphy, control->sta, wcid, skb); 698 return; 699 } 700 701 qid = skb_get_queue_mapping(skb); 702 if (qid >= MT_TXQ_PSD) { 703 qid = IEEE80211_AC_BE; 704 skb_set_queue_mapping(skb, qid); 705 } 706 707 mt76_connac_pm_queue_skb(hw, &dev->pm, wcid, skb); 708 } 709 710 static int mt7615_set_rts_threshold(struct ieee80211_hw *hw, u32 val) 711 { 712 struct mt7615_dev *dev = mt7615_hw_dev(hw); 713 struct mt7615_phy *phy = mt7615_hw_phy(hw); 714 int band = phy != &dev->phy; 715 716 mt7615_mutex_acquire(dev); 717 mt76_connac_mcu_set_rts_thresh(&dev->mt76, val, band); 718 mt7615_mutex_release(dev); 719 720 return 0; 721 } 722 723 static int 724 mt7615_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 725 struct ieee80211_ampdu_params *params) 726 { 727 enum ieee80211_ampdu_mlme_action action = params->action; 728 struct mt7615_dev *dev = mt7615_hw_dev(hw); 729 struct ieee80211_sta *sta = params->sta; 730 struct ieee80211_txq *txq = sta->txq[params->tid]; 731 struct mt7615_sta *msta = (struct mt7615_sta *)sta->drv_priv; 732 u16 tid = params->tid; 733 u16 ssn = params->ssn; 734 struct mt76_txq *mtxq; 735 int ret = 0; 736 737 if (!txq) 738 return -EINVAL; 739 740 mtxq = (struct mt76_txq *)txq->drv_priv; 741 742 mt7615_mutex_acquire(dev); 743 744 switch (action) { 745 case IEEE80211_AMPDU_RX_START: 746 mt76_rx_aggr_start(&dev->mt76, &msta->wcid, tid, ssn, 747 params->buf_size); 748 mt7615_mcu_add_rx_ba(dev, params, true); 749 break; 750 case IEEE80211_AMPDU_RX_STOP: 751 mt76_rx_aggr_stop(&dev->mt76, &msta->wcid, tid); 752 mt7615_mcu_add_rx_ba(dev, params, false); 753 break; 754 case IEEE80211_AMPDU_TX_OPERATIONAL: 755 mtxq->aggr = true; 756 mtxq->send_bar = false; 757 mt7615_mcu_add_tx_ba(dev, params, true); 758 ssn = mt7615_mac_get_sta_tid_sn(dev, msta->wcid.idx, tid); 759 ieee80211_send_bar(vif, sta->addr, tid, 760 IEEE80211_SN_TO_SEQ(ssn)); 761 break; 762 case IEEE80211_AMPDU_TX_STOP_FLUSH: 763 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 764 mtxq->aggr = false; 765 mt7615_mcu_add_tx_ba(dev, params, false); 766 break; 767 case IEEE80211_AMPDU_TX_START: 768 ssn = mt7615_mac_get_sta_tid_sn(dev, msta->wcid.idx, tid); 769 params->ssn = ssn; 770 ret = IEEE80211_AMPDU_TX_START_IMMEDIATE; 771 break; 772 case IEEE80211_AMPDU_TX_STOP_CONT: 773 mtxq->aggr = false; 774 mt7615_mcu_add_tx_ba(dev, params, false); 775 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 776 break; 777 } 778 mt7615_mutex_release(dev); 779 780 return ret; 781 } 782 783 static int 784 mt7615_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 785 struct ieee80211_sta *sta) 786 { 787 return mt76_sta_state(hw, vif, sta, IEEE80211_STA_NOTEXIST, 788 IEEE80211_STA_NONE); 789 } 790 791 static int 792 mt7615_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 793 struct ieee80211_sta *sta) 794 { 795 return mt76_sta_state(hw, vif, sta, IEEE80211_STA_NONE, 796 IEEE80211_STA_NOTEXIST); 797 } 798 799 static int 800 mt7615_get_stats(struct ieee80211_hw *hw, 801 struct ieee80211_low_level_stats *stats) 802 { 803 struct mt7615_phy *phy = mt7615_hw_phy(hw); 804 struct mib_stats *mib = &phy->mib; 805 806 stats->dot11RTSSuccessCount = mib->rts_cnt; 807 stats->dot11RTSFailureCount = mib->rts_retries_cnt; 808 stats->dot11FCSErrorCount = mib->fcs_err_cnt; 809 stats->dot11ACKFailureCount = mib->ack_fail_cnt; 810 811 return 0; 812 } 813 814 static u64 815 mt7615_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif) 816 { 817 struct mt7615_dev *dev = mt7615_hw_dev(hw); 818 union { 819 u64 t64; 820 u32 t32[2]; 821 } tsf; 822 823 mt7615_mutex_acquire(dev); 824 825 mt76_set(dev, MT_LPON_T0CR, MT_LPON_T0CR_MODE); /* TSF read */ 826 tsf.t32[0] = mt76_rr(dev, MT_LPON_UTTR0); 827 tsf.t32[1] = mt76_rr(dev, MT_LPON_UTTR1); 828 829 mt7615_mutex_release(dev); 830 831 return tsf.t64; 832 } 833 834 static void 835 mt7615_set_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 836 u64 timestamp) 837 { 838 struct mt7615_dev *dev = mt7615_hw_dev(hw); 839 union { 840 u64 t64; 841 u32 t32[2]; 842 } tsf = { .t64 = timestamp, }; 843 844 mt7615_mutex_acquire(dev); 845 846 mt76_wr(dev, MT_LPON_UTTR0, tsf.t32[0]); 847 mt76_wr(dev, MT_LPON_UTTR1, tsf.t32[1]); 848 /* TSF software overwrite */ 849 mt76_set(dev, MT_LPON_T0CR, MT_LPON_T0CR_WRITE); 850 851 mt7615_mutex_release(dev); 852 } 853 854 static void 855 mt7615_set_coverage_class(struct ieee80211_hw *hw, s16 coverage_class) 856 { 857 struct mt7615_phy *phy = mt7615_hw_phy(hw); 858 struct mt7615_dev *dev = phy->dev; 859 860 mt7615_mutex_acquire(dev); 861 phy->coverage_class = max_t(s16, coverage_class, 0); 862 mt7615_mac_set_timing(phy); 863 mt7615_mutex_release(dev); 864 } 865 866 static int 867 mt7615_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant) 868 { 869 struct mt7615_dev *dev = mt7615_hw_dev(hw); 870 struct mt7615_phy *phy = mt7615_hw_phy(hw); 871 int max_nss = hweight8(hw->wiphy->available_antennas_tx); 872 bool ext_phy = phy != &dev->phy; 873 874 if (!tx_ant || tx_ant != rx_ant || ffs(tx_ant) > max_nss) 875 return -EINVAL; 876 877 if ((BIT(hweight8(tx_ant)) - 1) != tx_ant) 878 tx_ant = BIT(ffs(tx_ant) - 1) - 1; 879 880 mt7615_mutex_acquire(dev); 881 882 phy->mt76->antenna_mask = tx_ant; 883 if (ext_phy) { 884 if (dev->chainmask == 0xf) 885 tx_ant <<= 2; 886 else 887 tx_ant <<= 1; 888 } 889 phy->mt76->chainmask = tx_ant; 890 891 mt76_set_stream_caps(phy->mt76, true); 892 893 mt7615_mutex_release(dev); 894 895 return 0; 896 } 897 898 static void mt7615_roc_iter(void *priv, u8 *mac, 899 struct ieee80211_vif *vif) 900 { 901 struct mt7615_phy *phy = priv; 902 903 mt7615_mcu_set_roc(phy, vif, NULL, 0); 904 } 905 906 void mt7615_roc_work(struct work_struct *work) 907 { 908 struct mt7615_phy *phy; 909 910 phy = (struct mt7615_phy *)container_of(work, struct mt7615_phy, 911 roc_work); 912 913 if (!test_and_clear_bit(MT76_STATE_ROC, &phy->mt76->state)) 914 return; 915 916 mt7615_mutex_acquire(phy->dev); 917 ieee80211_iterate_active_interfaces(phy->mt76->hw, 918 IEEE80211_IFACE_ITER_RESUME_ALL, 919 mt7615_roc_iter, phy); 920 mt7615_mutex_release(phy->dev); 921 ieee80211_remain_on_channel_expired(phy->mt76->hw); 922 } 923 924 void mt7615_roc_timer(struct timer_list *timer) 925 { 926 struct mt7615_phy *phy = from_timer(phy, timer, roc_timer); 927 928 ieee80211_queue_work(phy->mt76->hw, &phy->roc_work); 929 } 930 931 void mt7615_scan_work(struct work_struct *work) 932 { 933 struct mt7615_phy *phy; 934 935 phy = (struct mt7615_phy *)container_of(work, struct mt7615_phy, 936 scan_work.work); 937 938 while (true) { 939 struct mt7615_mcu_rxd *rxd; 940 struct sk_buff *skb; 941 942 spin_lock_bh(&phy->dev->mt76.lock); 943 skb = __skb_dequeue(&phy->scan_event_list); 944 spin_unlock_bh(&phy->dev->mt76.lock); 945 946 if (!skb) 947 break; 948 949 rxd = (struct mt7615_mcu_rxd *)skb->data; 950 if (rxd->eid == MCU_EVENT_SCHED_SCAN_DONE) { 951 ieee80211_sched_scan_results(phy->mt76->hw); 952 } else if (test_and_clear_bit(MT76_HW_SCANNING, 953 &phy->mt76->state)) { 954 struct cfg80211_scan_info info = { 955 .aborted = false, 956 }; 957 958 ieee80211_scan_completed(phy->mt76->hw, &info); 959 } 960 dev_kfree_skb(skb); 961 } 962 } 963 964 static int 965 mt7615_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 966 struct ieee80211_scan_request *req) 967 { 968 struct mt7615_dev *dev = mt7615_hw_dev(hw); 969 struct mt76_phy *mphy = hw->priv; 970 int err; 971 972 /* fall-back to sw-scan */ 973 if (!mt7615_firmware_offload(dev)) 974 return 1; 975 976 mt7615_mutex_acquire(dev); 977 err = mt76_connac_mcu_hw_scan(mphy, vif, req); 978 mt7615_mutex_release(dev); 979 980 return err; 981 } 982 983 static void 984 mt7615_cancel_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif) 985 { 986 struct mt7615_dev *dev = mt7615_hw_dev(hw); 987 struct mt76_phy *mphy = hw->priv; 988 989 mt7615_mutex_acquire(dev); 990 mt76_connac_mcu_cancel_hw_scan(mphy, vif); 991 mt7615_mutex_release(dev); 992 } 993 994 static int 995 mt7615_start_sched_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 996 struct cfg80211_sched_scan_request *req, 997 struct ieee80211_scan_ies *ies) 998 { 999 struct mt7615_dev *dev = mt7615_hw_dev(hw); 1000 struct mt76_phy *mphy = hw->priv; 1001 int err; 1002 1003 if (!mt7615_firmware_offload(dev)) 1004 return -EOPNOTSUPP; 1005 1006 mt7615_mutex_acquire(dev); 1007 1008 err = mt76_connac_mcu_sched_scan_req(mphy, vif, req); 1009 if (err < 0) 1010 goto out; 1011 1012 err = mt76_connac_mcu_sched_scan_enable(mphy, vif, true); 1013 out: 1014 mt7615_mutex_release(dev); 1015 1016 return err; 1017 } 1018 1019 static int 1020 mt7615_stop_sched_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif) 1021 { 1022 struct mt7615_dev *dev = mt7615_hw_dev(hw); 1023 struct mt76_phy *mphy = hw->priv; 1024 int err; 1025 1026 if (!mt7615_firmware_offload(dev)) 1027 return -EOPNOTSUPP; 1028 1029 mt7615_mutex_acquire(dev); 1030 err = mt76_connac_mcu_sched_scan_enable(mphy, vif, false); 1031 mt7615_mutex_release(dev); 1032 1033 return err; 1034 } 1035 1036 static int mt7615_remain_on_channel(struct ieee80211_hw *hw, 1037 struct ieee80211_vif *vif, 1038 struct ieee80211_channel *chan, 1039 int duration, 1040 enum ieee80211_roc_type type) 1041 { 1042 struct mt7615_phy *phy = mt7615_hw_phy(hw); 1043 int err; 1044 1045 if (test_and_set_bit(MT76_STATE_ROC, &phy->mt76->state)) 1046 return 0; 1047 1048 mt7615_mutex_acquire(phy->dev); 1049 1050 err = mt7615_mcu_set_roc(phy, vif, chan, duration); 1051 if (err < 0) { 1052 clear_bit(MT76_STATE_ROC, &phy->mt76->state); 1053 goto out; 1054 } 1055 1056 if (!wait_event_timeout(phy->roc_wait, phy->roc_grant, HZ)) { 1057 mt7615_mcu_set_roc(phy, vif, NULL, 0); 1058 clear_bit(MT76_STATE_ROC, &phy->mt76->state); 1059 err = -ETIMEDOUT; 1060 } 1061 1062 out: 1063 mt7615_mutex_release(phy->dev); 1064 1065 return err; 1066 } 1067 1068 static int mt7615_cancel_remain_on_channel(struct ieee80211_hw *hw, 1069 struct ieee80211_vif *vif) 1070 { 1071 struct mt7615_phy *phy = mt7615_hw_phy(hw); 1072 1073 if (!test_and_clear_bit(MT76_STATE_ROC, &phy->mt76->state)) 1074 return 0; 1075 1076 del_timer_sync(&phy->roc_timer); 1077 cancel_work_sync(&phy->roc_work); 1078 1079 mt7615_mutex_acquire(phy->dev); 1080 mt7615_mcu_set_roc(phy, vif, NULL, 0); 1081 mt7615_mutex_release(phy->dev); 1082 1083 return 0; 1084 } 1085 1086 #ifdef CONFIG_PM 1087 static int mt7615_suspend(struct ieee80211_hw *hw, 1088 struct cfg80211_wowlan *wowlan) 1089 { 1090 struct mt7615_phy *phy = mt7615_hw_phy(hw); 1091 struct mt7615_dev *dev = mt7615_hw_dev(hw); 1092 int err = 0; 1093 1094 cancel_delayed_work_sync(&dev->pm.ps_work); 1095 mt76_connac_free_pending_tx_skbs(&dev->pm, NULL); 1096 1097 mt7615_mutex_acquire(dev); 1098 1099 clear_bit(MT76_STATE_RUNNING, &phy->mt76->state); 1100 cancel_delayed_work_sync(&phy->scan_work); 1101 cancel_delayed_work_sync(&phy->mt76->mac_work); 1102 1103 set_bit(MT76_STATE_SUSPEND, &phy->mt76->state); 1104 ieee80211_iterate_active_interfaces(hw, 1105 IEEE80211_IFACE_ITER_RESUME_ALL, 1106 mt76_connac_mcu_set_suspend_iter, 1107 phy->mt76); 1108 1109 if (!mt7615_dev_running(dev)) 1110 err = mt76_connac_mcu_set_hif_suspend(&dev->mt76, true); 1111 1112 mt7615_mutex_release(dev); 1113 1114 return err; 1115 } 1116 1117 static int mt7615_resume(struct ieee80211_hw *hw) 1118 { 1119 struct mt7615_phy *phy = mt7615_hw_phy(hw); 1120 struct mt7615_dev *dev = mt7615_hw_dev(hw); 1121 bool running; 1122 1123 mt7615_mutex_acquire(dev); 1124 1125 running = mt7615_dev_running(dev); 1126 set_bit(MT76_STATE_RUNNING, &phy->mt76->state); 1127 1128 if (!running) { 1129 int err; 1130 1131 err = mt76_connac_mcu_set_hif_suspend(&dev->mt76, false); 1132 if (err < 0) { 1133 mt7615_mutex_release(dev); 1134 return err; 1135 } 1136 } 1137 1138 clear_bit(MT76_STATE_SUSPEND, &phy->mt76->state); 1139 ieee80211_iterate_active_interfaces(hw, 1140 IEEE80211_IFACE_ITER_RESUME_ALL, 1141 mt76_connac_mcu_set_suspend_iter, 1142 phy->mt76); 1143 1144 ieee80211_queue_delayed_work(hw, &phy->mt76->mac_work, 1145 MT7615_WATCHDOG_TIME); 1146 1147 mt7615_mutex_release(dev); 1148 1149 return 0; 1150 } 1151 1152 static void mt7615_set_wakeup(struct ieee80211_hw *hw, bool enabled) 1153 { 1154 struct mt7615_dev *dev = mt7615_hw_dev(hw); 1155 struct mt76_dev *mdev = &dev->mt76; 1156 1157 device_set_wakeup_enable(mdev->dev, enabled); 1158 } 1159 1160 static void mt7615_set_rekey_data(struct ieee80211_hw *hw, 1161 struct ieee80211_vif *vif, 1162 struct cfg80211_gtk_rekey_data *data) 1163 { 1164 struct mt7615_dev *dev = mt7615_hw_dev(hw); 1165 1166 mt7615_mutex_acquire(dev); 1167 mt76_connac_mcu_update_gtk_rekey(hw, vif, data); 1168 mt7615_mutex_release(dev); 1169 } 1170 #endif /* CONFIG_PM */ 1171 1172 const struct ieee80211_ops mt7615_ops = { 1173 .tx = mt7615_tx, 1174 .start = mt7615_start, 1175 .stop = mt7615_stop, 1176 .add_interface = mt7615_add_interface, 1177 .remove_interface = mt7615_remove_interface, 1178 .config = mt7615_config, 1179 .conf_tx = mt7615_conf_tx, 1180 .configure_filter = mt7615_configure_filter, 1181 .bss_info_changed = mt7615_bss_info_changed, 1182 .sta_add = mt7615_sta_add, 1183 .sta_remove = mt7615_sta_remove, 1184 .sta_pre_rcu_remove = mt76_sta_pre_rcu_remove, 1185 .set_key = mt7615_set_key, 1186 .ampdu_action = mt7615_ampdu_action, 1187 .set_rts_threshold = mt7615_set_rts_threshold, 1188 .wake_tx_queue = mt7615_wake_tx_queue, 1189 .sta_rate_tbl_update = mt7615_sta_rate_tbl_update, 1190 .sw_scan_start = mt76_sw_scan, 1191 .sw_scan_complete = mt76_sw_scan_complete, 1192 .release_buffered_frames = mt76_release_buffered_frames, 1193 .get_txpower = mt76_get_txpower, 1194 .channel_switch_beacon = mt7615_channel_switch_beacon, 1195 .get_stats = mt7615_get_stats, 1196 .get_tsf = mt7615_get_tsf, 1197 .set_tsf = mt7615_set_tsf, 1198 .get_survey = mt76_get_survey, 1199 .get_antenna = mt76_get_antenna, 1200 .set_antenna = mt7615_set_antenna, 1201 .set_coverage_class = mt7615_set_coverage_class, 1202 .hw_scan = mt7615_hw_scan, 1203 .cancel_hw_scan = mt7615_cancel_hw_scan, 1204 .sched_scan_start = mt7615_start_sched_scan, 1205 .sched_scan_stop = mt7615_stop_sched_scan, 1206 .remain_on_channel = mt7615_remain_on_channel, 1207 .cancel_remain_on_channel = mt7615_cancel_remain_on_channel, 1208 CFG80211_TESTMODE_CMD(mt76_testmode_cmd) 1209 CFG80211_TESTMODE_DUMP(mt76_testmode_dump) 1210 #ifdef CONFIG_PM 1211 .suspend = mt7615_suspend, 1212 .resume = mt7615_resume, 1213 .set_wakeup = mt7615_set_wakeup, 1214 .set_rekey_data = mt7615_set_rekey_data, 1215 #endif /* CONFIG_PM */ 1216 }; 1217 EXPORT_SYMBOL_GPL(mt7615_ops); 1218 1219 MODULE_LICENSE("Dual BSD/GPL"); 1220