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 mutex_lock(&dev->mt76.mutex); 37 38 running = mt7615_dev_running(dev); 39 40 if (!running) { 41 mt7615_mcu_set_pm(dev, 0, 0); 42 mt7615_mcu_set_mac_enable(dev, 0, true); 43 mt7615_mac_enable_nf(dev, 0); 44 } 45 46 if (phy != &dev->phy) { 47 mt7615_mcu_set_pm(dev, 1, 0); 48 mt7615_mcu_set_mac_enable(dev, 1, true); 49 mt7615_mac_enable_nf(dev, 1); 50 } 51 52 mt7615_mcu_set_channel_domain(phy); 53 mt7615_mcu_set_chan_info(phy, MCU_EXT_CMD_SET_RX_PATH); 54 55 set_bit(MT76_STATE_RUNNING, &phy->mt76->state); 56 57 ieee80211_queue_delayed_work(hw, &phy->mac_work, 58 MT7615_WATCHDOG_TIME); 59 60 if (!running) 61 mt7615_mac_reset_counters(dev); 62 63 mutex_unlock(&dev->mt76.mutex); 64 65 return 0; 66 } 67 68 static void mt7615_stop(struct ieee80211_hw *hw) 69 { 70 struct mt7615_dev *dev = mt7615_hw_dev(hw); 71 struct mt7615_phy *phy = mt7615_hw_phy(hw); 72 73 cancel_delayed_work_sync(&phy->mac_work); 74 del_timer_sync(&phy->roc_timer); 75 cancel_work_sync(&phy->roc_work); 76 77 mutex_lock(&dev->mt76.mutex); 78 79 clear_bit(MT76_STATE_RUNNING, &phy->mt76->state); 80 cancel_delayed_work_sync(&phy->scan_work); 81 82 if (phy != &dev->phy) { 83 mt7615_mcu_set_pm(dev, 1, 1); 84 mt7615_mcu_set_mac_enable(dev, 1, false); 85 } 86 87 if (!mt7615_dev_running(dev)) { 88 mt7615_mcu_set_pm(dev, 0, 1); 89 mt7615_mcu_set_mac_enable(dev, 0, false); 90 } 91 92 mutex_unlock(&dev->mt76.mutex); 93 } 94 95 static int get_omac_idx(enum nl80211_iftype type, u32 mask) 96 { 97 int i; 98 99 switch (type) { 100 case NL80211_IFTYPE_MONITOR: 101 case NL80211_IFTYPE_AP: 102 case NL80211_IFTYPE_MESH_POINT: 103 case NL80211_IFTYPE_ADHOC: 104 /* ap use hw bssid 0 and ext bssid */ 105 if (~mask & BIT(HW_BSSID_0)) 106 return HW_BSSID_0; 107 108 for (i = EXT_BSSID_1; i < EXT_BSSID_END; i++) 109 if (~mask & BIT(i)) 110 return i; 111 112 break; 113 case NL80211_IFTYPE_STATION: 114 /* sta use hw bssid other than 0 */ 115 for (i = HW_BSSID_1; i < HW_BSSID_MAX; i++) 116 if (~mask & BIT(i)) 117 return i; 118 119 break; 120 default: 121 WARN_ON(1); 122 break; 123 } 124 125 return -1; 126 } 127 128 static int mt7615_add_interface(struct ieee80211_hw *hw, 129 struct ieee80211_vif *vif) 130 { 131 struct mt7615_vif *mvif = (struct mt7615_vif *)vif->drv_priv; 132 struct mt7615_dev *dev = mt7615_hw_dev(hw); 133 struct mt7615_phy *phy = mt7615_hw_phy(hw); 134 struct mt76_txq *mtxq; 135 bool ext_phy = phy != &dev->phy; 136 int idx, ret = 0; 137 138 mutex_lock(&dev->mt76.mutex); 139 140 mvif->idx = ffs(~dev->vif_mask) - 1; 141 if (mvif->idx >= MT7615_MAX_INTERFACES) { 142 ret = -ENOSPC; 143 goto out; 144 } 145 146 idx = get_omac_idx(vif->type, dev->omac_mask); 147 if (idx < 0) { 148 ret = -ENOSPC; 149 goto out; 150 } 151 mvif->omac_idx = idx; 152 153 mvif->band_idx = ext_phy; 154 if (mt7615_ext_phy(dev)) 155 mvif->wmm_idx = ext_phy * (MT7615_MAX_WMM_SETS / 2) + 156 mvif->idx % (MT7615_MAX_WMM_SETS / 2); 157 else 158 mvif->wmm_idx = mvif->idx % MT7615_MAX_WMM_SETS; 159 160 dev->vif_mask |= BIT(mvif->idx); 161 dev->omac_mask |= BIT(mvif->omac_idx); 162 phy->omac_mask |= BIT(mvif->omac_idx); 163 164 mt7615_mcu_set_dbdc(dev); 165 166 idx = MT7615_WTBL_RESERVED - mvif->idx; 167 168 INIT_LIST_HEAD(&mvif->sta.poll_list); 169 mvif->sta.wcid.idx = idx; 170 mvif->sta.wcid.ext_phy = mvif->band_idx; 171 mvif->sta.wcid.hw_key_idx = -1; 172 mt7615_mac_wtbl_update(dev, idx, 173 MT_WTBL_UPDATE_ADM_COUNT_CLEAR); 174 175 rcu_assign_pointer(dev->mt76.wcid[idx], &mvif->sta.wcid); 176 if (vif->txq) { 177 mtxq = (struct mt76_txq *)vif->txq->drv_priv; 178 mtxq->wcid = &mvif->sta.wcid; 179 mt76_txq_init(&dev->mt76, vif->txq); 180 } 181 182 ret = mt7615_mcu_add_dev_info(dev, vif, true); 183 out: 184 mutex_unlock(&dev->mt76.mutex); 185 186 return ret; 187 } 188 189 static void mt7615_remove_interface(struct ieee80211_hw *hw, 190 struct ieee80211_vif *vif) 191 { 192 struct mt7615_vif *mvif = (struct mt7615_vif *)vif->drv_priv; 193 struct mt7615_sta *msta = &mvif->sta; 194 struct mt7615_dev *dev = mt7615_hw_dev(hw); 195 struct mt7615_phy *phy = mt7615_hw_phy(hw); 196 int idx = msta->wcid.idx; 197 198 /* TODO: disable beacon for the bss */ 199 200 mt7615_mcu_add_dev_info(dev, vif, false); 201 202 rcu_assign_pointer(dev->mt76.wcid[idx], NULL); 203 if (vif->txq) 204 mt76_txq_remove(&dev->mt76, vif->txq); 205 206 mutex_lock(&dev->mt76.mutex); 207 dev->vif_mask &= ~BIT(mvif->idx); 208 dev->omac_mask &= ~BIT(mvif->omac_idx); 209 phy->omac_mask &= ~BIT(mvif->omac_idx); 210 mutex_unlock(&dev->mt76.mutex); 211 212 spin_lock_bh(&dev->sta_poll_lock); 213 if (!list_empty(&msta->poll_list)) 214 list_del_init(&msta->poll_list); 215 spin_unlock_bh(&dev->sta_poll_lock); 216 } 217 218 static void mt7615_init_dfs_state(struct mt7615_phy *phy) 219 { 220 struct mt76_phy *mphy = phy->mt76; 221 struct ieee80211_hw *hw = mphy->hw; 222 struct cfg80211_chan_def *chandef = &hw->conf.chandef; 223 224 if (hw->conf.flags & IEEE80211_CONF_OFFCHANNEL) 225 return; 226 227 if (!(chandef->chan->flags & IEEE80211_CHAN_RADAR)) 228 return; 229 230 if (mphy->chandef.chan->center_freq == chandef->chan->center_freq && 231 mphy->chandef.width == chandef->width) 232 return; 233 234 phy->dfs_state = -1; 235 } 236 237 static int mt7615_set_channel(struct mt7615_phy *phy) 238 { 239 struct mt7615_dev *dev = phy->dev; 240 bool ext_phy = phy != &dev->phy; 241 int ret; 242 243 cancel_delayed_work_sync(&phy->mac_work); 244 245 mutex_lock(&dev->mt76.mutex); 246 set_bit(MT76_RESET, &phy->mt76->state); 247 248 mt7615_init_dfs_state(phy); 249 mt76_set_channel(phy->mt76); 250 251 if (is_mt7615(&dev->mt76) && dev->flash_eeprom) { 252 mt7615_mcu_apply_rx_dcoc(phy); 253 mt7615_mcu_apply_tx_dpd(phy); 254 } 255 256 ret = mt7615_mcu_set_chan_info(phy, MCU_EXT_CMD_CHANNEL_SWITCH); 257 if (ret) 258 goto out; 259 260 mt7615_mac_set_timing(phy); 261 ret = mt7615_dfs_init_radar_detector(phy); 262 mt7615_mac_cca_stats_reset(phy); 263 mt7615_mcu_set_sku_en(phy, true); 264 265 mt7615_mac_reset_counters(dev); 266 phy->noise = 0; 267 phy->chfreq = mt76_rr(dev, MT_CHFREQ(ext_phy)); 268 269 out: 270 clear_bit(MT76_RESET, &phy->mt76->state); 271 mutex_unlock(&dev->mt76.mutex); 272 273 mt76_txq_schedule_all(phy->mt76); 274 ieee80211_queue_delayed_work(phy->mt76->hw, &phy->mac_work, 275 MT7615_WATCHDOG_TIME); 276 return ret; 277 } 278 279 static int 280 mt7615_queue_key_update(struct mt7615_dev *dev, enum set_key_cmd cmd, 281 struct mt7615_sta *msta, 282 struct ieee80211_key_conf *key) 283 { 284 struct mt7615_wtbl_desc *wd; 285 286 wd = kzalloc(sizeof(*wd), GFP_KERNEL); 287 if (!wd) 288 return -ENOMEM; 289 290 wd->type = MT7615_WTBL_KEY_DESC; 291 wd->sta = msta; 292 293 wd->key.key = kmemdup(key->key, key->keylen, GFP_KERNEL); 294 if (!wd->key.key) { 295 kfree(wd); 296 return -ENOMEM; 297 } 298 wd->key.cipher = key->cipher; 299 wd->key.keyidx = key->keyidx; 300 wd->key.keylen = key->keylen; 301 wd->key.cmd = cmd; 302 303 list_add_tail(&wd->node, &dev->wd_head); 304 queue_work(dev->mt76.usb.wq, &dev->wtbl_work); 305 306 return 0; 307 } 308 309 static int mt7615_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, 310 struct ieee80211_vif *vif, struct ieee80211_sta *sta, 311 struct ieee80211_key_conf *key) 312 { 313 struct mt7615_dev *dev = mt7615_hw_dev(hw); 314 struct mt7615_vif *mvif = (struct mt7615_vif *)vif->drv_priv; 315 struct mt7615_sta *msta = sta ? (struct mt7615_sta *)sta->drv_priv : 316 &mvif->sta; 317 struct mt76_wcid *wcid = &msta->wcid; 318 int idx = key->keyidx; 319 320 /* The hardware does not support per-STA RX GTK, fallback 321 * to software mode for these. 322 */ 323 if ((vif->type == NL80211_IFTYPE_ADHOC || 324 vif->type == NL80211_IFTYPE_MESH_POINT) && 325 (key->cipher == WLAN_CIPHER_SUITE_TKIP || 326 key->cipher == WLAN_CIPHER_SUITE_CCMP) && 327 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) 328 return -EOPNOTSUPP; 329 330 /* fall back to sw encryption for unsupported ciphers */ 331 switch (key->cipher) { 332 case WLAN_CIPHER_SUITE_AES_CMAC: 333 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIE; 334 break; 335 case WLAN_CIPHER_SUITE_WEP40: 336 case WLAN_CIPHER_SUITE_WEP104: 337 case WLAN_CIPHER_SUITE_TKIP: 338 case WLAN_CIPHER_SUITE_CCMP: 339 case WLAN_CIPHER_SUITE_CCMP_256: 340 case WLAN_CIPHER_SUITE_GCMP: 341 case WLAN_CIPHER_SUITE_GCMP_256: 342 case WLAN_CIPHER_SUITE_SMS4: 343 break; 344 default: 345 return -EOPNOTSUPP; 346 } 347 348 if (cmd == SET_KEY) { 349 key->hw_key_idx = wcid->idx; 350 wcid->hw_key_idx = idx; 351 } else if (idx == wcid->hw_key_idx) { 352 wcid->hw_key_idx = -1; 353 } 354 mt76_wcid_key_setup(&dev->mt76, wcid, 355 cmd == SET_KEY ? key : NULL); 356 357 if (mt76_is_usb(&dev->mt76)) 358 return mt7615_queue_key_update(dev, cmd, msta, key); 359 360 return mt7615_mac_wtbl_set_key(dev, wcid, key, cmd); 361 } 362 363 static int mt7615_config(struct ieee80211_hw *hw, u32 changed) 364 { 365 struct mt7615_dev *dev = mt7615_hw_dev(hw); 366 struct mt7615_phy *phy = mt7615_hw_phy(hw); 367 bool band = phy != &dev->phy; 368 int ret = 0; 369 370 if (changed & (IEEE80211_CONF_CHANGE_CHANNEL | 371 IEEE80211_CONF_CHANGE_POWER)) { 372 ieee80211_stop_queues(hw); 373 ret = mt7615_set_channel(phy); 374 ieee80211_wake_queues(hw); 375 } 376 377 mutex_lock(&dev->mt76.mutex); 378 379 if (changed & IEEE80211_CONF_CHANGE_MONITOR) { 380 if (!(hw->conf.flags & IEEE80211_CONF_MONITOR)) 381 phy->rxfilter |= MT_WF_RFCR_DROP_OTHER_UC; 382 else 383 phy->rxfilter &= ~MT_WF_RFCR_DROP_OTHER_UC; 384 385 mt76_wr(dev, MT_WF_RFCR(band), phy->rxfilter); 386 } 387 388 mutex_unlock(&dev->mt76.mutex); 389 390 return ret; 391 } 392 393 static int 394 mt7615_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif, u16 queue, 395 const struct ieee80211_tx_queue_params *params) 396 { 397 struct mt7615_vif *mvif = (struct mt7615_vif *)vif->drv_priv; 398 struct mt7615_dev *dev = mt7615_hw_dev(hw); 399 400 queue = mt7615_lmac_mapping(dev, queue); 401 queue += mvif->wmm_idx * MT7615_MAX_WMM_SETS; 402 403 return mt7615_mcu_set_wmm(dev, queue, params); 404 } 405 406 static void mt7615_configure_filter(struct ieee80211_hw *hw, 407 unsigned int changed_flags, 408 unsigned int *total_flags, 409 u64 multicast) 410 { 411 struct mt7615_dev *dev = mt7615_hw_dev(hw); 412 struct mt7615_phy *phy = mt7615_hw_phy(hw); 413 bool band = phy != &dev->phy; 414 415 u32 ctl_flags = MT_WF_RFCR1_DROP_ACK | 416 MT_WF_RFCR1_DROP_BF_POLL | 417 MT_WF_RFCR1_DROP_BA | 418 MT_WF_RFCR1_DROP_CFEND | 419 MT_WF_RFCR1_DROP_CFACK; 420 u32 flags = 0; 421 422 #define MT76_FILTER(_flag, _hw) do { \ 423 flags |= *total_flags & FIF_##_flag; \ 424 phy->rxfilter &= ~(_hw); \ 425 phy->rxfilter |= !(flags & FIF_##_flag) * (_hw); \ 426 } while (0) 427 428 phy->rxfilter &= ~(MT_WF_RFCR_DROP_OTHER_BSS | 429 MT_WF_RFCR_DROP_OTHER_BEACON | 430 MT_WF_RFCR_DROP_FRAME_REPORT | 431 MT_WF_RFCR_DROP_PROBEREQ | 432 MT_WF_RFCR_DROP_MCAST_FILTERED | 433 MT_WF_RFCR_DROP_MCAST | 434 MT_WF_RFCR_DROP_BCAST | 435 MT_WF_RFCR_DROP_DUPLICATE | 436 MT_WF_RFCR_DROP_A2_BSSID | 437 MT_WF_RFCR_DROP_UNWANTED_CTL | 438 MT_WF_RFCR_DROP_STBC_MULTI); 439 440 MT76_FILTER(OTHER_BSS, MT_WF_RFCR_DROP_OTHER_TIM | 441 MT_WF_RFCR_DROP_A3_MAC | 442 MT_WF_RFCR_DROP_A3_BSSID); 443 444 MT76_FILTER(FCSFAIL, MT_WF_RFCR_DROP_FCSFAIL); 445 446 MT76_FILTER(CONTROL, MT_WF_RFCR_DROP_CTS | 447 MT_WF_RFCR_DROP_RTS | 448 MT_WF_RFCR_DROP_CTL_RSV | 449 MT_WF_RFCR_DROP_NDPA); 450 451 *total_flags = flags; 452 mt76_wr(dev, MT_WF_RFCR(band), phy->rxfilter); 453 454 if (*total_flags & FIF_CONTROL) 455 mt76_clear(dev, MT_WF_RFCR1(band), ctl_flags); 456 else 457 mt76_set(dev, MT_WF_RFCR1(band), ctl_flags); 458 } 459 460 static void mt7615_bss_info_changed(struct ieee80211_hw *hw, 461 struct ieee80211_vif *vif, 462 struct ieee80211_bss_conf *info, 463 u32 changed) 464 { 465 struct mt7615_dev *dev = mt7615_hw_dev(hw); 466 struct mt7615_phy *phy = mt7615_hw_phy(hw); 467 468 mutex_lock(&dev->mt76.mutex); 469 470 if (changed & BSS_CHANGED_ERP_SLOT) { 471 int slottime = info->use_short_slot ? 9 : 20; 472 473 if (slottime != phy->slottime) { 474 phy->slottime = slottime; 475 mt7615_mac_set_timing(phy); 476 } 477 } 478 479 if (changed & BSS_CHANGED_BEACON_ENABLED) { 480 mt7615_mcu_add_bss_info(phy, vif, NULL, info->enable_beacon); 481 mt7615_mcu_sta_add(dev, vif, NULL, info->enable_beacon); 482 483 if (vif->p2p && info->enable_beacon) 484 mt7615_mcu_set_p2p_oppps(hw, vif); 485 } 486 487 if (changed & (BSS_CHANGED_BEACON | 488 BSS_CHANGED_BEACON_ENABLED)) 489 mt7615_mcu_add_beacon(dev, hw, vif, info->enable_beacon); 490 491 if (changed & BSS_CHANGED_PS) 492 mt7615_mcu_set_vif_ps(dev, vif); 493 494 mutex_unlock(&dev->mt76.mutex); 495 } 496 497 static void 498 mt7615_channel_switch_beacon(struct ieee80211_hw *hw, 499 struct ieee80211_vif *vif, 500 struct cfg80211_chan_def *chandef) 501 { 502 struct mt7615_dev *dev = mt7615_hw_dev(hw); 503 504 mutex_lock(&dev->mt76.mutex); 505 mt7615_mcu_add_beacon(dev, hw, vif, true); 506 mutex_unlock(&dev->mt76.mutex); 507 } 508 509 int mt7615_mac_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif, 510 struct ieee80211_sta *sta) 511 { 512 struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76); 513 struct mt7615_sta *msta = (struct mt7615_sta *)sta->drv_priv; 514 struct mt7615_vif *mvif = (struct mt7615_vif *)vif->drv_priv; 515 int idx; 516 517 idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7615_WTBL_STA - 1); 518 if (idx < 0) 519 return -ENOSPC; 520 521 INIT_LIST_HEAD(&msta->poll_list); 522 msta->vif = mvif; 523 msta->wcid.sta = 1; 524 msta->wcid.idx = idx; 525 msta->wcid.ext_phy = mvif->band_idx; 526 527 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) { 528 struct mt7615_phy *phy; 529 530 phy = mvif->band_idx ? mt7615_ext_phy(dev) : &dev->phy; 531 mt7615_mcu_add_bss_info(phy, vif, sta, true); 532 } 533 mt7615_mac_wtbl_update(dev, idx, 534 MT_WTBL_UPDATE_ADM_COUNT_CLEAR); 535 mt7615_mcu_sta_add(dev, vif, sta, true); 536 537 return 0; 538 } 539 EXPORT_SYMBOL_GPL(mt7615_mac_sta_add); 540 541 void mt7615_mac_sta_remove(struct mt76_dev *mdev, struct ieee80211_vif *vif, 542 struct ieee80211_sta *sta) 543 { 544 struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76); 545 struct mt7615_sta *msta = (struct mt7615_sta *)sta->drv_priv; 546 547 mt7615_mcu_sta_add(dev, vif, sta, false); 548 mt7615_mac_wtbl_update(dev, msta->wcid.idx, 549 MT_WTBL_UPDATE_ADM_COUNT_CLEAR); 550 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) { 551 struct mt7615_vif *mvif = (struct mt7615_vif *)vif->drv_priv; 552 struct mt7615_phy *phy; 553 554 phy = mvif->band_idx ? mt7615_ext_phy(dev) : &dev->phy; 555 mt7615_mcu_add_bss_info(phy, vif, sta, false); 556 } 557 558 spin_lock_bh(&dev->sta_poll_lock); 559 if (!list_empty(&msta->poll_list)) 560 list_del_init(&msta->poll_list); 561 spin_unlock_bh(&dev->sta_poll_lock); 562 } 563 EXPORT_SYMBOL_GPL(mt7615_mac_sta_remove); 564 565 static void mt7615_sta_rate_tbl_update(struct ieee80211_hw *hw, 566 struct ieee80211_vif *vif, 567 struct ieee80211_sta *sta) 568 { 569 struct mt7615_dev *dev = mt7615_hw_dev(hw); 570 struct mt7615_phy *phy = mt7615_hw_phy(hw); 571 struct mt7615_sta *msta = (struct mt7615_sta *)sta->drv_priv; 572 struct ieee80211_sta_rates *sta_rates = rcu_dereference(sta->rates); 573 int i; 574 575 spin_lock_bh(&dev->mt76.lock); 576 for (i = 0; i < ARRAY_SIZE(msta->rates); i++) { 577 msta->rates[i].idx = sta_rates->rate[i].idx; 578 msta->rates[i].count = sta_rates->rate[i].count; 579 msta->rates[i].flags = sta_rates->rate[i].flags; 580 581 if (msta->rates[i].idx < 0 || !msta->rates[i].count) 582 break; 583 } 584 msta->n_rates = i; 585 mt7615_mac_set_rates(phy, msta, NULL, msta->rates); 586 msta->rate_probe = false; 587 spin_unlock_bh(&dev->mt76.lock); 588 } 589 590 static void mt7615_tx(struct ieee80211_hw *hw, 591 struct ieee80211_tx_control *control, 592 struct sk_buff *skb) 593 { 594 struct mt7615_dev *dev = mt7615_hw_dev(hw); 595 struct mt76_phy *mphy = hw->priv; 596 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 597 struct ieee80211_vif *vif = info->control.vif; 598 struct mt76_wcid *wcid = &dev->mt76.global_wcid; 599 600 if (control->sta) { 601 struct mt7615_sta *sta; 602 603 sta = (struct mt7615_sta *)control->sta->drv_priv; 604 wcid = &sta->wcid; 605 } 606 607 if (vif && !control->sta) { 608 struct mt7615_vif *mvif; 609 610 mvif = (struct mt7615_vif *)vif->drv_priv; 611 wcid = &mvif->sta.wcid; 612 } 613 614 mt76_tx(mphy, control->sta, wcid, skb); 615 } 616 617 static int mt7615_set_rts_threshold(struct ieee80211_hw *hw, u32 val) 618 { 619 struct mt7615_dev *dev = mt7615_hw_dev(hw); 620 struct mt7615_phy *phy = mt7615_hw_phy(hw); 621 622 mutex_lock(&dev->mt76.mutex); 623 mt7615_mcu_set_rts_thresh(phy, val); 624 mutex_unlock(&dev->mt76.mutex); 625 626 return 0; 627 } 628 629 static int 630 mt7615_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 631 struct ieee80211_ampdu_params *params) 632 { 633 enum ieee80211_ampdu_mlme_action action = params->action; 634 struct mt7615_dev *dev = mt7615_hw_dev(hw); 635 struct ieee80211_sta *sta = params->sta; 636 struct ieee80211_txq *txq = sta->txq[params->tid]; 637 struct mt7615_sta *msta = (struct mt7615_sta *)sta->drv_priv; 638 u16 tid = params->tid; 639 u16 ssn = params->ssn; 640 struct mt76_txq *mtxq; 641 int ret = 0; 642 643 if (!txq) 644 return -EINVAL; 645 646 mtxq = (struct mt76_txq *)txq->drv_priv; 647 648 mutex_lock(&dev->mt76.mutex); 649 switch (action) { 650 case IEEE80211_AMPDU_RX_START: 651 mt76_rx_aggr_start(&dev->mt76, &msta->wcid, tid, ssn, 652 params->buf_size); 653 mt7615_mcu_add_rx_ba(dev, params, true); 654 break; 655 case IEEE80211_AMPDU_RX_STOP: 656 mt76_rx_aggr_stop(&dev->mt76, &msta->wcid, tid); 657 mt7615_mcu_add_rx_ba(dev, params, false); 658 break; 659 case IEEE80211_AMPDU_TX_OPERATIONAL: 660 mtxq->aggr = true; 661 mtxq->send_bar = false; 662 mt7615_mcu_add_tx_ba(dev, params, true); 663 break; 664 case IEEE80211_AMPDU_TX_STOP_FLUSH: 665 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 666 mtxq->aggr = false; 667 mt7615_mcu_add_tx_ba(dev, params, false); 668 break; 669 case IEEE80211_AMPDU_TX_START: 670 mtxq->agg_ssn = IEEE80211_SN_TO_SEQ(ssn); 671 ret = IEEE80211_AMPDU_TX_START_IMMEDIATE; 672 break; 673 case IEEE80211_AMPDU_TX_STOP_CONT: 674 mtxq->aggr = false; 675 mt7615_mcu_add_tx_ba(dev, params, false); 676 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 677 break; 678 } 679 mutex_unlock(&dev->mt76.mutex); 680 681 return ret; 682 } 683 684 static int 685 mt7615_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 686 struct ieee80211_sta *sta) 687 { 688 return mt76_sta_state(hw, vif, sta, IEEE80211_STA_NOTEXIST, 689 IEEE80211_STA_NONE); 690 } 691 692 static int 693 mt7615_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 694 struct ieee80211_sta *sta) 695 { 696 return mt76_sta_state(hw, vif, sta, IEEE80211_STA_NONE, 697 IEEE80211_STA_NOTEXIST); 698 } 699 700 static int 701 mt7615_get_stats(struct ieee80211_hw *hw, 702 struct ieee80211_low_level_stats *stats) 703 { 704 struct mt7615_phy *phy = mt7615_hw_phy(hw); 705 struct mib_stats *mib = &phy->mib; 706 707 stats->dot11RTSSuccessCount = mib->rts_cnt; 708 stats->dot11RTSFailureCount = mib->rts_retries_cnt; 709 stats->dot11FCSErrorCount = mib->fcs_err_cnt; 710 stats->dot11ACKFailureCount = mib->ack_fail_cnt; 711 712 return 0; 713 } 714 715 static u64 716 mt7615_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif) 717 { 718 struct mt7615_dev *dev = mt7615_hw_dev(hw); 719 union { 720 u64 t64; 721 u32 t32[2]; 722 } tsf; 723 724 mutex_lock(&dev->mt76.mutex); 725 726 mt76_set(dev, MT_LPON_T0CR, MT_LPON_T0CR_MODE); /* TSF read */ 727 tsf.t32[0] = mt76_rr(dev, MT_LPON_UTTR0); 728 tsf.t32[1] = mt76_rr(dev, MT_LPON_UTTR1); 729 730 mutex_unlock(&dev->mt76.mutex); 731 732 return tsf.t64; 733 } 734 735 static void 736 mt7615_set_coverage_class(struct ieee80211_hw *hw, s16 coverage_class) 737 { 738 struct mt7615_phy *phy = mt7615_hw_phy(hw); 739 struct mt7615_dev *dev = phy->dev; 740 741 mutex_lock(&dev->mt76.mutex); 742 phy->coverage_class = max_t(s16, coverage_class, 0); 743 mt7615_mac_set_timing(phy); 744 mutex_unlock(&dev->mt76.mutex); 745 } 746 747 static int 748 mt7615_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant) 749 { 750 struct mt7615_dev *dev = mt7615_hw_dev(hw); 751 struct mt7615_phy *phy = mt7615_hw_phy(hw); 752 int max_nss = hweight8(hw->wiphy->available_antennas_tx); 753 bool ext_phy = phy != &dev->phy; 754 755 if (!tx_ant || tx_ant != rx_ant || ffs(tx_ant) > max_nss) 756 return -EINVAL; 757 758 if ((BIT(hweight8(tx_ant)) - 1) != tx_ant) 759 tx_ant = BIT(ffs(tx_ant) - 1) - 1; 760 761 mutex_lock(&dev->mt76.mutex); 762 763 phy->mt76->antenna_mask = tx_ant; 764 if (ext_phy) { 765 if (dev->chainmask == 0xf) 766 tx_ant <<= 2; 767 else 768 tx_ant <<= 1; 769 } 770 phy->chainmask = tx_ant; 771 772 mt76_set_stream_caps(phy->mt76, true); 773 774 mutex_unlock(&dev->mt76.mutex); 775 776 return 0; 777 } 778 779 static void mt7615_roc_iter(void *priv, u8 *mac, 780 struct ieee80211_vif *vif) 781 { 782 struct mt7615_phy *phy = priv; 783 784 mt7615_mcu_set_roc(phy, vif, NULL, 0); 785 } 786 787 void mt7615_roc_work(struct work_struct *work) 788 { 789 struct mt7615_phy *phy; 790 791 phy = (struct mt7615_phy *)container_of(work, struct mt7615_phy, 792 roc_work); 793 794 if (!test_and_clear_bit(MT76_STATE_ROC, &phy->mt76->state)) 795 return; 796 797 ieee80211_iterate_active_interfaces(phy->mt76->hw, 798 IEEE80211_IFACE_ITER_RESUME_ALL, 799 mt7615_roc_iter, phy); 800 ieee80211_remain_on_channel_expired(phy->mt76->hw); 801 } 802 803 void mt7615_roc_timer(struct timer_list *timer) 804 { 805 struct mt7615_phy *phy = from_timer(phy, timer, roc_timer); 806 807 ieee80211_queue_work(phy->mt76->hw, &phy->roc_work); 808 } 809 810 void mt7615_scan_work(struct work_struct *work) 811 { 812 struct mt7615_phy *phy; 813 814 phy = (struct mt7615_phy *)container_of(work, struct mt7615_phy, 815 scan_work.work); 816 817 while (true) { 818 struct mt7615_mcu_rxd *rxd; 819 struct sk_buff *skb; 820 821 spin_lock_bh(&phy->dev->mt76.lock); 822 skb = __skb_dequeue(&phy->scan_event_list); 823 spin_unlock_bh(&phy->dev->mt76.lock); 824 825 if (!skb) 826 break; 827 828 rxd = (struct mt7615_mcu_rxd *)skb->data; 829 if (rxd->eid == MCU_EVENT_SCHED_SCAN_DONE) { 830 ieee80211_sched_scan_results(phy->mt76->hw); 831 } else if (test_and_clear_bit(MT76_HW_SCANNING, 832 &phy->mt76->state)) { 833 struct cfg80211_scan_info info = { 834 .aborted = false, 835 }; 836 837 ieee80211_scan_completed(phy->mt76->hw, &info); 838 } 839 dev_kfree_skb(skb); 840 } 841 } 842 843 static int 844 mt7615_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 845 struct ieee80211_scan_request *req) 846 { 847 struct mt76_phy *mphy = hw->priv; 848 849 return mt7615_mcu_hw_scan(mphy->priv, vif, req); 850 } 851 852 static void 853 mt7615_cancel_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif) 854 { 855 struct mt76_phy *mphy = hw->priv; 856 857 mt7615_mcu_cancel_hw_scan(mphy->priv, vif); 858 } 859 860 static int 861 mt7615_start_sched_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 862 struct cfg80211_sched_scan_request *req, 863 struct ieee80211_scan_ies *ies) 864 { 865 struct mt76_phy *mphy = hw->priv; 866 int err; 867 868 err = mt7615_mcu_sched_scan_req(mphy->priv, vif, req); 869 if (err < 0) 870 return err; 871 872 return mt7615_mcu_sched_scan_enable(mphy->priv, vif, true); 873 } 874 875 static int 876 mt7615_stop_sched_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif) 877 { 878 struct mt76_phy *mphy = hw->priv; 879 880 return mt7615_mcu_sched_scan_enable(mphy->priv, vif, false); 881 } 882 883 static int mt7615_remain_on_channel(struct ieee80211_hw *hw, 884 struct ieee80211_vif *vif, 885 struct ieee80211_channel *chan, 886 int duration, 887 enum ieee80211_roc_type type) 888 { 889 struct mt7615_phy *phy = mt7615_hw_phy(hw); 890 int err; 891 892 if (test_and_set_bit(MT76_STATE_ROC, &phy->mt76->state)) 893 return 0; 894 895 err = mt7615_mcu_set_roc(phy, vif, chan, duration); 896 if (err < 0) { 897 clear_bit(MT76_STATE_ROC, &phy->mt76->state); 898 return err; 899 } 900 901 if (!wait_event_timeout(phy->roc_wait, phy->roc_grant, HZ)) { 902 mt7615_mcu_set_roc(phy, vif, NULL, 0); 903 clear_bit(MT76_STATE_ROC, &phy->mt76->state); 904 905 return -ETIMEDOUT; 906 } 907 908 return 0; 909 } 910 911 static int mt7615_cancel_remain_on_channel(struct ieee80211_hw *hw, 912 struct ieee80211_vif *vif) 913 { 914 struct mt7615_phy *phy = mt7615_hw_phy(hw); 915 916 if (!test_and_clear_bit(MT76_STATE_ROC, &phy->mt76->state)) 917 return 0; 918 919 del_timer_sync(&phy->roc_timer); 920 cancel_work_sync(&phy->roc_work); 921 922 mt7615_mcu_set_roc(phy, vif, NULL, 0); 923 924 return 0; 925 } 926 927 #ifdef CONFIG_PM 928 static int mt7615_suspend(struct ieee80211_hw *hw, 929 struct cfg80211_wowlan *wowlan) 930 { 931 struct mt7615_dev *dev = mt7615_hw_dev(hw); 932 struct mt7615_phy *phy = mt7615_hw_phy(hw); 933 bool ext_phy = phy != &dev->phy; 934 int err = 0; 935 936 mutex_lock(&dev->mt76.mutex); 937 938 clear_bit(MT76_STATE_RUNNING, &phy->mt76->state); 939 cancel_delayed_work_sync(&phy->scan_work); 940 cancel_delayed_work_sync(&phy->mac_work); 941 942 mt76_set(dev, MT_WF_RFCR(ext_phy), MT_WF_RFCR_DROP_OTHER_BEACON); 943 944 set_bit(MT76_STATE_SUSPEND, &phy->mt76->state); 945 ieee80211_iterate_active_interfaces(hw, 946 IEEE80211_IFACE_ITER_RESUME_ALL, 947 mt7615_mcu_set_suspend_iter, phy); 948 949 if (!mt7615_dev_running(dev)) 950 err = mt7615_mcu_set_hif_suspend(dev, true); 951 952 mutex_unlock(&dev->mt76.mutex); 953 954 return err; 955 } 956 957 static int mt7615_resume(struct ieee80211_hw *hw) 958 { 959 struct mt7615_dev *dev = mt7615_hw_dev(hw); 960 struct mt7615_phy *phy = mt7615_hw_phy(hw); 961 bool running, ext_phy = phy != &dev->phy; 962 963 mutex_lock(&dev->mt76.mutex); 964 965 running = mt7615_dev_running(dev); 966 set_bit(MT76_STATE_RUNNING, &phy->mt76->state); 967 968 if (!running) { 969 int err; 970 971 err = mt7615_mcu_set_hif_suspend(dev, false); 972 if (err < 0) { 973 mutex_unlock(&dev->mt76.mutex); 974 return err; 975 } 976 } 977 978 clear_bit(MT76_STATE_SUSPEND, &phy->mt76->state); 979 ieee80211_iterate_active_interfaces(hw, 980 IEEE80211_IFACE_ITER_RESUME_ALL, 981 mt7615_mcu_set_suspend_iter, phy); 982 983 ieee80211_queue_delayed_work(hw, &phy->mac_work, 984 MT7615_WATCHDOG_TIME); 985 mt76_clear(dev, MT_WF_RFCR(ext_phy), MT_WF_RFCR_DROP_OTHER_BEACON); 986 987 mutex_unlock(&dev->mt76.mutex); 988 989 return 0; 990 } 991 992 static void mt7615_set_wakeup(struct ieee80211_hw *hw, bool enabled) 993 { 994 struct mt7615_dev *dev = mt7615_hw_dev(hw); 995 struct mt76_dev *mdev = &dev->mt76; 996 997 device_set_wakeup_enable(mdev->dev, enabled); 998 } 999 1000 static void mt7615_set_rekey_data(struct ieee80211_hw *hw, 1001 struct ieee80211_vif *vif, 1002 struct cfg80211_gtk_rekey_data *data) 1003 { 1004 mt7615_mcu_update_gtk_rekey(hw, vif, data); 1005 } 1006 #endif /* CONFIG_PM */ 1007 1008 const struct ieee80211_ops mt7615_ops = { 1009 .tx = mt7615_tx, 1010 .start = mt7615_start, 1011 .stop = mt7615_stop, 1012 .add_interface = mt7615_add_interface, 1013 .remove_interface = mt7615_remove_interface, 1014 .config = mt7615_config, 1015 .conf_tx = mt7615_conf_tx, 1016 .configure_filter = mt7615_configure_filter, 1017 .bss_info_changed = mt7615_bss_info_changed, 1018 .sta_add = mt7615_sta_add, 1019 .sta_remove = mt7615_sta_remove, 1020 .sta_pre_rcu_remove = mt76_sta_pre_rcu_remove, 1021 .set_key = mt7615_set_key, 1022 .ampdu_action = mt7615_ampdu_action, 1023 .set_rts_threshold = mt7615_set_rts_threshold, 1024 .wake_tx_queue = mt76_wake_tx_queue, 1025 .sta_rate_tbl_update = mt7615_sta_rate_tbl_update, 1026 .sw_scan_start = mt76_sw_scan, 1027 .sw_scan_complete = mt76_sw_scan_complete, 1028 .release_buffered_frames = mt76_release_buffered_frames, 1029 .get_txpower = mt76_get_txpower, 1030 .channel_switch_beacon = mt7615_channel_switch_beacon, 1031 .get_stats = mt7615_get_stats, 1032 .get_tsf = mt7615_get_tsf, 1033 .get_survey = mt76_get_survey, 1034 .get_antenna = mt76_get_antenna, 1035 .set_antenna = mt7615_set_antenna, 1036 .set_coverage_class = mt7615_set_coverage_class, 1037 .hw_scan = mt7615_hw_scan, 1038 .cancel_hw_scan = mt7615_cancel_hw_scan, 1039 .sched_scan_start = mt7615_start_sched_scan, 1040 .sched_scan_stop = mt7615_stop_sched_scan, 1041 .remain_on_channel = mt7615_remain_on_channel, 1042 .cancel_remain_on_channel = mt7615_cancel_remain_on_channel, 1043 #ifdef CONFIG_PM 1044 .suspend = mt7615_suspend, 1045 .resume = mt7615_resume, 1046 .set_wakeup = mt7615_set_wakeup, 1047 .set_rekey_data = mt7615_set_rekey_data, 1048 #endif /* CONFIG_PM */ 1049 }; 1050 EXPORT_SYMBOL_GPL(mt7615_ops); 1051 1052 MODULE_LICENSE("Dual BSD/GPL"); 1053