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 += mvif->wmm_idx * MT7615_MAX_WMM_SETS; 401 402 return mt7615_mcu_set_wmm(dev, queue, params); 403 } 404 405 static void mt7615_configure_filter(struct ieee80211_hw *hw, 406 unsigned int changed_flags, 407 unsigned int *total_flags, 408 u64 multicast) 409 { 410 struct mt7615_dev *dev = mt7615_hw_dev(hw); 411 struct mt7615_phy *phy = mt7615_hw_phy(hw); 412 bool band = phy != &dev->phy; 413 414 u32 ctl_flags = MT_WF_RFCR1_DROP_ACK | 415 MT_WF_RFCR1_DROP_BF_POLL | 416 MT_WF_RFCR1_DROP_BA | 417 MT_WF_RFCR1_DROP_CFEND | 418 MT_WF_RFCR1_DROP_CFACK; 419 u32 flags = 0; 420 421 #define MT76_FILTER(_flag, _hw) do { \ 422 flags |= *total_flags & FIF_##_flag; \ 423 phy->rxfilter &= ~(_hw); \ 424 phy->rxfilter |= !(flags & FIF_##_flag) * (_hw); \ 425 } while (0) 426 427 phy->rxfilter &= ~(MT_WF_RFCR_DROP_OTHER_BSS | 428 MT_WF_RFCR_DROP_OTHER_BEACON | 429 MT_WF_RFCR_DROP_FRAME_REPORT | 430 MT_WF_RFCR_DROP_PROBEREQ | 431 MT_WF_RFCR_DROP_MCAST_FILTERED | 432 MT_WF_RFCR_DROP_MCAST | 433 MT_WF_RFCR_DROP_BCAST | 434 MT_WF_RFCR_DROP_DUPLICATE | 435 MT_WF_RFCR_DROP_A2_BSSID | 436 MT_WF_RFCR_DROP_UNWANTED_CTL | 437 MT_WF_RFCR_DROP_STBC_MULTI); 438 439 MT76_FILTER(OTHER_BSS, MT_WF_RFCR_DROP_OTHER_TIM | 440 MT_WF_RFCR_DROP_A3_MAC | 441 MT_WF_RFCR_DROP_A3_BSSID); 442 443 MT76_FILTER(FCSFAIL, MT_WF_RFCR_DROP_FCSFAIL); 444 445 MT76_FILTER(CONTROL, MT_WF_RFCR_DROP_CTS | 446 MT_WF_RFCR_DROP_RTS | 447 MT_WF_RFCR_DROP_CTL_RSV | 448 MT_WF_RFCR_DROP_NDPA); 449 450 *total_flags = flags; 451 mt76_wr(dev, MT_WF_RFCR(band), phy->rxfilter); 452 453 if (*total_flags & FIF_CONTROL) 454 mt76_clear(dev, MT_WF_RFCR1(band), ctl_flags); 455 else 456 mt76_set(dev, MT_WF_RFCR1(band), ctl_flags); 457 } 458 459 static void mt7615_bss_info_changed(struct ieee80211_hw *hw, 460 struct ieee80211_vif *vif, 461 struct ieee80211_bss_conf *info, 462 u32 changed) 463 { 464 struct mt7615_dev *dev = mt7615_hw_dev(hw); 465 struct mt7615_phy *phy = mt7615_hw_phy(hw); 466 467 mutex_lock(&dev->mt76.mutex); 468 469 if (changed & BSS_CHANGED_ERP_SLOT) { 470 int slottime = info->use_short_slot ? 9 : 20; 471 472 if (slottime != phy->slottime) { 473 phy->slottime = slottime; 474 mt7615_mac_set_timing(phy); 475 } 476 } 477 478 if (changed & BSS_CHANGED_BEACON_ENABLED) { 479 mt7615_mcu_add_bss_info(phy, vif, NULL, info->enable_beacon); 480 mt7615_mcu_sta_add(dev, vif, NULL, info->enable_beacon); 481 482 if (vif->p2p && info->enable_beacon) 483 mt7615_mcu_set_p2p_oppps(hw, vif); 484 } 485 486 if (changed & (BSS_CHANGED_BEACON | 487 BSS_CHANGED_BEACON_ENABLED)) 488 mt7615_mcu_add_beacon(dev, hw, vif, info->enable_beacon); 489 490 if (changed & BSS_CHANGED_PS) 491 mt7615_mcu_set_vif_ps(dev, vif); 492 493 mutex_unlock(&dev->mt76.mutex); 494 } 495 496 static void 497 mt7615_channel_switch_beacon(struct ieee80211_hw *hw, 498 struct ieee80211_vif *vif, 499 struct cfg80211_chan_def *chandef) 500 { 501 struct mt7615_dev *dev = mt7615_hw_dev(hw); 502 503 mutex_lock(&dev->mt76.mutex); 504 mt7615_mcu_add_beacon(dev, hw, vif, true); 505 mutex_unlock(&dev->mt76.mutex); 506 } 507 508 int mt7615_mac_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif, 509 struct ieee80211_sta *sta) 510 { 511 struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76); 512 struct mt7615_sta *msta = (struct mt7615_sta *)sta->drv_priv; 513 struct mt7615_vif *mvif = (struct mt7615_vif *)vif->drv_priv; 514 int idx; 515 516 idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7615_WTBL_STA - 1); 517 if (idx < 0) 518 return -ENOSPC; 519 520 INIT_LIST_HEAD(&msta->poll_list); 521 msta->vif = mvif; 522 msta->wcid.sta = 1; 523 msta->wcid.idx = idx; 524 msta->wcid.ext_phy = mvif->band_idx; 525 526 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) { 527 struct mt7615_phy *phy; 528 529 phy = mvif->band_idx ? mt7615_ext_phy(dev) : &dev->phy; 530 mt7615_mcu_add_bss_info(phy, vif, sta, true); 531 } 532 mt7615_mac_wtbl_update(dev, idx, 533 MT_WTBL_UPDATE_ADM_COUNT_CLEAR); 534 mt7615_mcu_sta_add(dev, vif, sta, true); 535 536 return 0; 537 } 538 EXPORT_SYMBOL_GPL(mt7615_mac_sta_add); 539 540 void mt7615_mac_sta_remove(struct mt76_dev *mdev, struct ieee80211_vif *vif, 541 struct ieee80211_sta *sta) 542 { 543 struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76); 544 struct mt7615_sta *msta = (struct mt7615_sta *)sta->drv_priv; 545 546 mt7615_mcu_sta_add(dev, vif, sta, false); 547 mt7615_mac_wtbl_update(dev, msta->wcid.idx, 548 MT_WTBL_UPDATE_ADM_COUNT_CLEAR); 549 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) { 550 struct mt7615_vif *mvif = (struct mt7615_vif *)vif->drv_priv; 551 struct mt7615_phy *phy; 552 553 phy = mvif->band_idx ? mt7615_ext_phy(dev) : &dev->phy; 554 mt7615_mcu_add_bss_info(phy, vif, sta, false); 555 } 556 557 spin_lock_bh(&dev->sta_poll_lock); 558 if (!list_empty(&msta->poll_list)) 559 list_del_init(&msta->poll_list); 560 spin_unlock_bh(&dev->sta_poll_lock); 561 } 562 EXPORT_SYMBOL_GPL(mt7615_mac_sta_remove); 563 564 static void mt7615_sta_rate_tbl_update(struct ieee80211_hw *hw, 565 struct ieee80211_vif *vif, 566 struct ieee80211_sta *sta) 567 { 568 struct mt7615_dev *dev = mt7615_hw_dev(hw); 569 struct mt7615_phy *phy = mt7615_hw_phy(hw); 570 struct mt7615_sta *msta = (struct mt7615_sta *)sta->drv_priv; 571 struct ieee80211_sta_rates *sta_rates = rcu_dereference(sta->rates); 572 int i; 573 574 spin_lock_bh(&dev->mt76.lock); 575 for (i = 0; i < ARRAY_SIZE(msta->rates); i++) { 576 msta->rates[i].idx = sta_rates->rate[i].idx; 577 msta->rates[i].count = sta_rates->rate[i].count; 578 msta->rates[i].flags = sta_rates->rate[i].flags; 579 580 if (msta->rates[i].idx < 0 || !msta->rates[i].count) 581 break; 582 } 583 msta->n_rates = i; 584 mt7615_mac_set_rates(phy, msta, NULL, msta->rates); 585 msta->rate_probe = false; 586 spin_unlock_bh(&dev->mt76.lock); 587 } 588 589 static void mt7615_tx(struct ieee80211_hw *hw, 590 struct ieee80211_tx_control *control, 591 struct sk_buff *skb) 592 { 593 struct mt7615_dev *dev = mt7615_hw_dev(hw); 594 struct mt76_phy *mphy = hw->priv; 595 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 596 struct ieee80211_vif *vif = info->control.vif; 597 struct mt76_wcid *wcid = &dev->mt76.global_wcid; 598 599 if (control->sta) { 600 struct mt7615_sta *sta; 601 602 sta = (struct mt7615_sta *)control->sta->drv_priv; 603 wcid = &sta->wcid; 604 } 605 606 if (vif && !control->sta) { 607 struct mt7615_vif *mvif; 608 609 mvif = (struct mt7615_vif *)vif->drv_priv; 610 wcid = &mvif->sta.wcid; 611 } 612 613 mt76_tx(mphy, control->sta, wcid, skb); 614 } 615 616 static int mt7615_set_rts_threshold(struct ieee80211_hw *hw, u32 val) 617 { 618 struct mt7615_dev *dev = mt7615_hw_dev(hw); 619 struct mt7615_phy *phy = mt7615_hw_phy(hw); 620 621 mutex_lock(&dev->mt76.mutex); 622 mt7615_mcu_set_rts_thresh(phy, val); 623 mutex_unlock(&dev->mt76.mutex); 624 625 return 0; 626 } 627 628 static int 629 mt7615_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 630 struct ieee80211_ampdu_params *params) 631 { 632 enum ieee80211_ampdu_mlme_action action = params->action; 633 struct mt7615_dev *dev = mt7615_hw_dev(hw); 634 struct ieee80211_sta *sta = params->sta; 635 struct ieee80211_txq *txq = sta->txq[params->tid]; 636 struct mt7615_sta *msta = (struct mt7615_sta *)sta->drv_priv; 637 u16 tid = params->tid; 638 u16 ssn = params->ssn; 639 struct mt76_txq *mtxq; 640 int ret = 0; 641 642 if (!txq) 643 return -EINVAL; 644 645 mtxq = (struct mt76_txq *)txq->drv_priv; 646 647 mutex_lock(&dev->mt76.mutex); 648 switch (action) { 649 case IEEE80211_AMPDU_RX_START: 650 mt76_rx_aggr_start(&dev->mt76, &msta->wcid, tid, ssn, 651 params->buf_size); 652 mt7615_mcu_add_rx_ba(dev, params, true); 653 break; 654 case IEEE80211_AMPDU_RX_STOP: 655 mt76_rx_aggr_stop(&dev->mt76, &msta->wcid, tid); 656 mt7615_mcu_add_rx_ba(dev, params, false); 657 break; 658 case IEEE80211_AMPDU_TX_OPERATIONAL: 659 mtxq->aggr = true; 660 mtxq->send_bar = false; 661 mt7615_mcu_add_tx_ba(dev, params, true); 662 break; 663 case IEEE80211_AMPDU_TX_STOP_FLUSH: 664 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 665 mtxq->aggr = false; 666 mt7615_mcu_add_tx_ba(dev, params, false); 667 break; 668 case IEEE80211_AMPDU_TX_START: 669 mtxq->agg_ssn = IEEE80211_SN_TO_SEQ(ssn); 670 ret = IEEE80211_AMPDU_TX_START_IMMEDIATE; 671 break; 672 case IEEE80211_AMPDU_TX_STOP_CONT: 673 mtxq->aggr = false; 674 mt7615_mcu_add_tx_ba(dev, params, false); 675 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 676 break; 677 } 678 mutex_unlock(&dev->mt76.mutex); 679 680 return ret; 681 } 682 683 static int 684 mt7615_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 685 struct ieee80211_sta *sta) 686 { 687 return mt76_sta_state(hw, vif, sta, IEEE80211_STA_NOTEXIST, 688 IEEE80211_STA_NONE); 689 } 690 691 static int 692 mt7615_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 693 struct ieee80211_sta *sta) 694 { 695 return mt76_sta_state(hw, vif, sta, IEEE80211_STA_NONE, 696 IEEE80211_STA_NOTEXIST); 697 } 698 699 static int 700 mt7615_get_stats(struct ieee80211_hw *hw, 701 struct ieee80211_low_level_stats *stats) 702 { 703 struct mt7615_phy *phy = mt7615_hw_phy(hw); 704 struct mib_stats *mib = &phy->mib; 705 706 stats->dot11RTSSuccessCount = mib->rts_cnt; 707 stats->dot11RTSFailureCount = mib->rts_retries_cnt; 708 stats->dot11FCSErrorCount = mib->fcs_err_cnt; 709 stats->dot11ACKFailureCount = mib->ack_fail_cnt; 710 711 return 0; 712 } 713 714 static u64 715 mt7615_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif) 716 { 717 struct mt7615_dev *dev = mt7615_hw_dev(hw); 718 union { 719 u64 t64; 720 u32 t32[2]; 721 } tsf; 722 723 mutex_lock(&dev->mt76.mutex); 724 725 mt76_set(dev, MT_LPON_T0CR, MT_LPON_T0CR_MODE); /* TSF read */ 726 tsf.t32[0] = mt76_rr(dev, MT_LPON_UTTR0); 727 tsf.t32[1] = mt76_rr(dev, MT_LPON_UTTR1); 728 729 mutex_unlock(&dev->mt76.mutex); 730 731 return tsf.t64; 732 } 733 734 static void 735 mt7615_set_coverage_class(struct ieee80211_hw *hw, s16 coverage_class) 736 { 737 struct mt7615_phy *phy = mt7615_hw_phy(hw); 738 739 phy->coverage_class = max_t(s16, coverage_class, 0); 740 mt7615_mac_set_timing(phy); 741 } 742 743 static int 744 mt7615_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant) 745 { 746 struct mt7615_dev *dev = mt7615_hw_dev(hw); 747 struct mt7615_phy *phy = mt7615_hw_phy(hw); 748 int max_nss = hweight8(hw->wiphy->available_antennas_tx); 749 bool ext_phy = phy != &dev->phy; 750 751 if (!tx_ant || tx_ant != rx_ant || ffs(tx_ant) > max_nss) 752 return -EINVAL; 753 754 if ((BIT(hweight8(tx_ant)) - 1) != tx_ant) 755 tx_ant = BIT(ffs(tx_ant) - 1) - 1; 756 757 mutex_lock(&dev->mt76.mutex); 758 759 phy->mt76->antenna_mask = tx_ant; 760 if (ext_phy) { 761 if (dev->chainmask == 0xf) 762 tx_ant <<= 2; 763 else 764 tx_ant <<= 1; 765 } 766 phy->chainmask = tx_ant; 767 768 mt76_set_stream_caps(phy->mt76, true); 769 770 mutex_unlock(&dev->mt76.mutex); 771 772 return 0; 773 } 774 775 static void mt7615_roc_iter(void *priv, u8 *mac, 776 struct ieee80211_vif *vif) 777 { 778 struct mt7615_phy *phy = priv; 779 780 mt7615_mcu_set_roc(phy, vif, NULL, 0); 781 } 782 783 void mt7615_roc_work(struct work_struct *work) 784 { 785 struct mt7615_phy *phy; 786 787 phy = (struct mt7615_phy *)container_of(work, struct mt7615_phy, 788 roc_work); 789 790 if (!test_and_clear_bit(MT76_STATE_ROC, &phy->mt76->state)) 791 return; 792 793 ieee80211_iterate_active_interfaces(phy->mt76->hw, 794 IEEE80211_IFACE_ITER_RESUME_ALL, 795 mt7615_roc_iter, phy); 796 ieee80211_remain_on_channel_expired(phy->mt76->hw); 797 } 798 799 void mt7615_roc_timer(struct timer_list *timer) 800 { 801 struct mt7615_phy *phy = from_timer(phy, timer, roc_timer); 802 803 ieee80211_queue_work(phy->mt76->hw, &phy->roc_work); 804 } 805 806 void mt7615_scan_work(struct work_struct *work) 807 { 808 struct mt7615_phy *phy; 809 810 phy = (struct mt7615_phy *)container_of(work, struct mt7615_phy, 811 scan_work.work); 812 813 while (true) { 814 struct mt7615_mcu_rxd *rxd; 815 struct sk_buff *skb; 816 817 spin_lock_bh(&phy->dev->mt76.lock); 818 skb = __skb_dequeue(&phy->scan_event_list); 819 spin_unlock_bh(&phy->dev->mt76.lock); 820 821 if (!skb) 822 break; 823 824 rxd = (struct mt7615_mcu_rxd *)skb->data; 825 if (rxd->eid == MCU_EVENT_SCHED_SCAN_DONE) { 826 ieee80211_sched_scan_results(phy->mt76->hw); 827 } else if (test_and_clear_bit(MT76_HW_SCANNING, 828 &phy->mt76->state)) { 829 struct cfg80211_scan_info info = { 830 .aborted = false, 831 }; 832 833 ieee80211_scan_completed(phy->mt76->hw, &info); 834 } 835 dev_kfree_skb(skb); 836 } 837 } 838 839 static int 840 mt7615_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 841 struct ieee80211_scan_request *req) 842 { 843 struct mt76_phy *mphy = hw->priv; 844 845 return mt7615_mcu_hw_scan(mphy->priv, vif, req); 846 } 847 848 static void 849 mt7615_cancel_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif) 850 { 851 struct mt76_phy *mphy = hw->priv; 852 853 mt7615_mcu_cancel_hw_scan(mphy->priv, vif); 854 } 855 856 static int 857 mt7615_start_sched_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 858 struct cfg80211_sched_scan_request *req, 859 struct ieee80211_scan_ies *ies) 860 { 861 struct mt76_phy *mphy = hw->priv; 862 int err; 863 864 err = mt7615_mcu_sched_scan_req(mphy->priv, vif, req); 865 if (err < 0) 866 return err; 867 868 return mt7615_mcu_sched_scan_enable(mphy->priv, vif, true); 869 } 870 871 static int 872 mt7615_stop_sched_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif) 873 { 874 struct mt76_phy *mphy = hw->priv; 875 876 return mt7615_mcu_sched_scan_enable(mphy->priv, vif, false); 877 } 878 879 static int mt7615_remain_on_channel(struct ieee80211_hw *hw, 880 struct ieee80211_vif *vif, 881 struct ieee80211_channel *chan, 882 int duration, 883 enum ieee80211_roc_type type) 884 { 885 struct mt7615_phy *phy = mt7615_hw_phy(hw); 886 int err; 887 888 if (test_and_set_bit(MT76_STATE_ROC, &phy->mt76->state)) 889 return 0; 890 891 err = mt7615_mcu_set_roc(phy, vif, chan, duration); 892 if (err < 0) { 893 clear_bit(MT76_STATE_ROC, &phy->mt76->state); 894 return err; 895 } 896 897 if (!wait_event_timeout(phy->roc_wait, phy->roc_grant, HZ)) { 898 mt7615_mcu_set_roc(phy, vif, NULL, 0); 899 clear_bit(MT76_STATE_ROC, &phy->mt76->state); 900 901 return -ETIMEDOUT; 902 } 903 904 return 0; 905 } 906 907 static int mt7615_cancel_remain_on_channel(struct ieee80211_hw *hw, 908 struct ieee80211_vif *vif) 909 { 910 struct mt7615_phy *phy = mt7615_hw_phy(hw); 911 912 if (!test_and_clear_bit(MT76_STATE_ROC, &phy->mt76->state)) 913 return 0; 914 915 del_timer_sync(&phy->roc_timer); 916 cancel_work_sync(&phy->roc_work); 917 918 mt7615_mcu_set_roc(phy, vif, NULL, 0); 919 920 return 0; 921 } 922 923 #ifdef CONFIG_PM 924 static int mt7615_suspend(struct ieee80211_hw *hw, 925 struct cfg80211_wowlan *wowlan) 926 { 927 struct mt7615_dev *dev = mt7615_hw_dev(hw); 928 struct mt7615_phy *phy = mt7615_hw_phy(hw); 929 bool ext_phy = phy != &dev->phy; 930 int err = 0; 931 932 mutex_lock(&dev->mt76.mutex); 933 934 clear_bit(MT76_STATE_RUNNING, &phy->mt76->state); 935 cancel_delayed_work_sync(&phy->scan_work); 936 cancel_delayed_work_sync(&phy->mac_work); 937 938 mt76_set(dev, MT_WF_RFCR(ext_phy), MT_WF_RFCR_DROP_OTHER_BEACON); 939 940 set_bit(MT76_STATE_SUSPEND, &phy->mt76->state); 941 ieee80211_iterate_active_interfaces(hw, 942 IEEE80211_IFACE_ITER_RESUME_ALL, 943 mt7615_mcu_set_suspend_iter, phy); 944 945 if (!mt7615_dev_running(dev)) 946 err = mt7615_mcu_set_hif_suspend(dev, true); 947 948 mutex_unlock(&dev->mt76.mutex); 949 950 return err; 951 } 952 953 static int mt7615_resume(struct ieee80211_hw *hw) 954 { 955 struct mt7615_dev *dev = mt7615_hw_dev(hw); 956 struct mt7615_phy *phy = mt7615_hw_phy(hw); 957 bool running, ext_phy = phy != &dev->phy; 958 959 mutex_lock(&dev->mt76.mutex); 960 961 running = mt7615_dev_running(dev); 962 set_bit(MT76_STATE_RUNNING, &phy->mt76->state); 963 964 if (!running) { 965 int err; 966 967 err = mt7615_mcu_set_hif_suspend(dev, false); 968 if (err < 0) { 969 mutex_unlock(&dev->mt76.mutex); 970 return err; 971 } 972 } 973 974 clear_bit(MT76_STATE_SUSPEND, &phy->mt76->state); 975 ieee80211_iterate_active_interfaces(hw, 976 IEEE80211_IFACE_ITER_RESUME_ALL, 977 mt7615_mcu_set_suspend_iter, phy); 978 979 ieee80211_queue_delayed_work(hw, &phy->mac_work, 980 MT7615_WATCHDOG_TIME); 981 mt76_clear(dev, MT_WF_RFCR(ext_phy), MT_WF_RFCR_DROP_OTHER_BEACON); 982 983 mutex_unlock(&dev->mt76.mutex); 984 985 return 0; 986 } 987 988 static void mt7615_set_wakeup(struct ieee80211_hw *hw, bool enabled) 989 { 990 struct mt7615_dev *dev = mt7615_hw_dev(hw); 991 struct mt76_dev *mdev = &dev->mt76; 992 993 device_set_wakeup_enable(mdev->dev, enabled); 994 } 995 996 static void mt7615_set_rekey_data(struct ieee80211_hw *hw, 997 struct ieee80211_vif *vif, 998 struct cfg80211_gtk_rekey_data *data) 999 { 1000 mt7615_mcu_update_gtk_rekey(hw, vif, data); 1001 } 1002 #endif /* CONFIG_PM */ 1003 1004 const struct ieee80211_ops mt7615_ops = { 1005 .tx = mt7615_tx, 1006 .start = mt7615_start, 1007 .stop = mt7615_stop, 1008 .add_interface = mt7615_add_interface, 1009 .remove_interface = mt7615_remove_interface, 1010 .config = mt7615_config, 1011 .conf_tx = mt7615_conf_tx, 1012 .configure_filter = mt7615_configure_filter, 1013 .bss_info_changed = mt7615_bss_info_changed, 1014 .sta_add = mt7615_sta_add, 1015 .sta_remove = mt7615_sta_remove, 1016 .sta_pre_rcu_remove = mt76_sta_pre_rcu_remove, 1017 .set_key = mt7615_set_key, 1018 .ampdu_action = mt7615_ampdu_action, 1019 .set_rts_threshold = mt7615_set_rts_threshold, 1020 .wake_tx_queue = mt76_wake_tx_queue, 1021 .sta_rate_tbl_update = mt7615_sta_rate_tbl_update, 1022 .sw_scan_start = mt76_sw_scan, 1023 .sw_scan_complete = mt76_sw_scan_complete, 1024 .release_buffered_frames = mt76_release_buffered_frames, 1025 .get_txpower = mt76_get_txpower, 1026 .channel_switch_beacon = mt7615_channel_switch_beacon, 1027 .get_stats = mt7615_get_stats, 1028 .get_tsf = mt7615_get_tsf, 1029 .get_survey = mt76_get_survey, 1030 .get_antenna = mt76_get_antenna, 1031 .set_antenna = mt7615_set_antenna, 1032 .set_coverage_class = mt7615_set_coverage_class, 1033 .hw_scan = mt7615_hw_scan, 1034 .cancel_hw_scan = mt7615_cancel_hw_scan, 1035 .sched_scan_start = mt7615_start_sched_scan, 1036 .sched_scan_stop = mt7615_stop_sched_scan, 1037 .remain_on_channel = mt7615_remain_on_channel, 1038 .cancel_remain_on_channel = mt7615_cancel_remain_on_channel, 1039 #ifdef CONFIG_PM 1040 .suspend = mt7615_suspend, 1041 .resume = mt7615_resume, 1042 .set_wakeup = mt7615_set_wakeup, 1043 .set_rekey_data = mt7615_set_rekey_data, 1044 #endif /* CONFIG_PM */ 1045 }; 1046 EXPORT_SYMBOL_GPL(mt7615_ops); 1047 1048 MODULE_LICENSE("Dual BSD/GPL"); 1049