1 // SPDX-License-Identifier: ISC 2 /* 3 * Copyright (C) 2018 Stanislaw Gruszka <stf_xl@wp.pl> 4 * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name> 5 */ 6 7 #include <linux/module.h> 8 #include "mt76x02.h" 9 10 #define CCK_RATE(_idx, _rate) { \ 11 .bitrate = _rate, \ 12 .flags = IEEE80211_RATE_SHORT_PREAMBLE, \ 13 .hw_value = (MT_PHY_TYPE_CCK << 8) | (_idx), \ 14 .hw_value_short = (MT_PHY_TYPE_CCK << 8) | (8 + (_idx)), \ 15 } 16 17 #define OFDM_RATE(_idx, _rate) { \ 18 .bitrate = _rate, \ 19 .hw_value = (MT_PHY_TYPE_OFDM << 8) | (_idx), \ 20 .hw_value_short = (MT_PHY_TYPE_OFDM << 8) | (_idx), \ 21 } 22 23 struct ieee80211_rate mt76x02_rates[] = { 24 CCK_RATE(0, 10), 25 CCK_RATE(1, 20), 26 CCK_RATE(2, 55), 27 CCK_RATE(3, 110), 28 OFDM_RATE(0, 60), 29 OFDM_RATE(1, 90), 30 OFDM_RATE(2, 120), 31 OFDM_RATE(3, 180), 32 OFDM_RATE(4, 240), 33 OFDM_RATE(5, 360), 34 OFDM_RATE(6, 480), 35 OFDM_RATE(7, 540), 36 }; 37 EXPORT_SYMBOL_GPL(mt76x02_rates); 38 39 static const struct ieee80211_iface_limit mt76x02_if_limits[] = { 40 { 41 .max = 1, 42 .types = BIT(NL80211_IFTYPE_ADHOC) 43 }, { 44 .max = 8, 45 .types = BIT(NL80211_IFTYPE_STATION) | 46 #ifdef CONFIG_MAC80211_MESH 47 BIT(NL80211_IFTYPE_MESH_POINT) | 48 #endif 49 BIT(NL80211_IFTYPE_P2P_CLIENT) | 50 BIT(NL80211_IFTYPE_P2P_GO) | 51 BIT(NL80211_IFTYPE_AP) 52 }, 53 }; 54 55 static const struct ieee80211_iface_limit mt76x02u_if_limits[] = { 56 { 57 .max = 1, 58 .types = BIT(NL80211_IFTYPE_ADHOC) 59 }, { 60 .max = 2, 61 .types = BIT(NL80211_IFTYPE_STATION) | 62 #ifdef CONFIG_MAC80211_MESH 63 BIT(NL80211_IFTYPE_MESH_POINT) | 64 #endif 65 BIT(NL80211_IFTYPE_P2P_CLIENT) | 66 BIT(NL80211_IFTYPE_P2P_GO) | 67 BIT(NL80211_IFTYPE_AP) 68 }, 69 }; 70 71 static const struct ieee80211_iface_combination mt76x02_if_comb[] = { 72 { 73 .limits = mt76x02_if_limits, 74 .n_limits = ARRAY_SIZE(mt76x02_if_limits), 75 .max_interfaces = 8, 76 .num_different_channels = 1, 77 .beacon_int_infra_match = true, 78 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) | 79 BIT(NL80211_CHAN_WIDTH_20) | 80 BIT(NL80211_CHAN_WIDTH_40) | 81 BIT(NL80211_CHAN_WIDTH_80), 82 } 83 }; 84 85 static const struct ieee80211_iface_combination mt76x02u_if_comb[] = { 86 { 87 .limits = mt76x02u_if_limits, 88 .n_limits = ARRAY_SIZE(mt76x02u_if_limits), 89 .max_interfaces = 2, 90 .num_different_channels = 1, 91 .beacon_int_infra_match = true, 92 } 93 }; 94 95 static void 96 mt76x02_led_set_config(struct mt76_dev *mdev, u8 delay_on, 97 u8 delay_off) 98 { 99 struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, 100 mt76); 101 u32 val; 102 103 val = FIELD_PREP(MT_LED_STATUS_DURATION, 0xff) | 104 FIELD_PREP(MT_LED_STATUS_OFF, delay_off) | 105 FIELD_PREP(MT_LED_STATUS_ON, delay_on); 106 107 mt76_wr(dev, MT_LED_S0(mdev->led_pin), val); 108 mt76_wr(dev, MT_LED_S1(mdev->led_pin), val); 109 110 val = MT_LED_CTRL_REPLAY(mdev->led_pin) | 111 MT_LED_CTRL_KICK(mdev->led_pin); 112 if (mdev->led_al) 113 val |= MT_LED_CTRL_POLARITY(mdev->led_pin); 114 mt76_wr(dev, MT_LED_CTRL, val); 115 } 116 117 static int 118 mt76x02_led_set_blink(struct led_classdev *led_cdev, 119 unsigned long *delay_on, 120 unsigned long *delay_off) 121 { 122 struct mt76_dev *mdev = container_of(led_cdev, struct mt76_dev, 123 led_cdev); 124 u8 delta_on, delta_off; 125 126 delta_off = max_t(u8, *delay_off / 10, 1); 127 delta_on = max_t(u8, *delay_on / 10, 1); 128 129 mt76x02_led_set_config(mdev, delta_on, delta_off); 130 131 return 0; 132 } 133 134 static void 135 mt76x02_led_set_brightness(struct led_classdev *led_cdev, 136 enum led_brightness brightness) 137 { 138 struct mt76_dev *mdev = container_of(led_cdev, struct mt76_dev, 139 led_cdev); 140 141 if (!brightness) 142 mt76x02_led_set_config(mdev, 0, 0xff); 143 else 144 mt76x02_led_set_config(mdev, 0xff, 0); 145 } 146 147 void mt76x02_init_device(struct mt76x02_dev *dev) 148 { 149 struct ieee80211_hw *hw = mt76_hw(dev); 150 struct wiphy *wiphy = hw->wiphy; 151 152 INIT_DELAYED_WORK(&dev->mphy.mac_work, mt76x02_mac_work); 153 154 hw->queues = 4; 155 hw->max_rates = 1; 156 hw->max_report_rates = 7; 157 hw->max_rate_tries = 1; 158 hw->extra_tx_headroom = 2; 159 160 if (mt76_is_usb(&dev->mt76)) { 161 hw->extra_tx_headroom += sizeof(struct mt76x02_txwi) + 162 MT_DMA_HDR_LEN; 163 wiphy->iface_combinations = mt76x02u_if_comb; 164 wiphy->n_iface_combinations = ARRAY_SIZE(mt76x02u_if_comb); 165 } else { 166 INIT_DELAYED_WORK(&dev->wdt_work, mt76x02_wdt_work); 167 168 mt76x02_dfs_init_detector(dev); 169 170 wiphy->reg_notifier = mt76x02_regd_notifier; 171 wiphy->iface_combinations = mt76x02_if_comb; 172 wiphy->n_iface_combinations = ARRAY_SIZE(mt76x02_if_comb); 173 174 /* init led callbacks */ 175 if (IS_ENABLED(CONFIG_MT76_LEDS)) { 176 dev->mt76.led_cdev.brightness_set = 177 mt76x02_led_set_brightness; 178 dev->mt76.led_cdev.blink_set = mt76x02_led_set_blink; 179 } 180 } 181 182 wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_VHT_IBSS); 183 184 hw->sta_data_size = sizeof(struct mt76x02_sta); 185 hw->vif_data_size = sizeof(struct mt76x02_vif); 186 187 ieee80211_hw_set(hw, SUPPORTS_HT_CCK_RATES); 188 ieee80211_hw_set(hw, HOST_BROADCAST_PS_BUFFERING); 189 ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR); 190 191 dev->mt76.global_wcid.idx = 255; 192 dev->mt76.global_wcid.hw_key_idx = -1; 193 dev->slottime = 9; 194 195 if (is_mt76x2(dev)) { 196 dev->mphy.sband_2g.sband.ht_cap.cap |= 197 IEEE80211_HT_CAP_LDPC_CODING; 198 dev->mphy.sband_5g.sband.ht_cap.cap |= 199 IEEE80211_HT_CAP_LDPC_CODING; 200 dev->mphy.chainmask = 0x202; 201 dev->mphy.antenna_mask = 3; 202 } else { 203 dev->mphy.chainmask = 0x101; 204 dev->mphy.antenna_mask = 1; 205 } 206 } 207 EXPORT_SYMBOL_GPL(mt76x02_init_device); 208 209 void mt76x02_configure_filter(struct ieee80211_hw *hw, 210 unsigned int changed_flags, 211 unsigned int *total_flags, u64 multicast) 212 { 213 struct mt76x02_dev *dev = hw->priv; 214 u32 flags = 0; 215 216 #define MT76_FILTER(_flag, _hw) do { \ 217 flags |= *total_flags & FIF_##_flag; \ 218 dev->mt76.rxfilter &= ~(_hw); \ 219 dev->mt76.rxfilter |= !(flags & FIF_##_flag) * (_hw); \ 220 } while (0) 221 222 mutex_lock(&dev->mt76.mutex); 223 224 dev->mt76.rxfilter &= ~MT_RX_FILTR_CFG_OTHER_BSS; 225 226 MT76_FILTER(FCSFAIL, MT_RX_FILTR_CFG_CRC_ERR); 227 MT76_FILTER(PLCPFAIL, MT_RX_FILTR_CFG_PHY_ERR); 228 MT76_FILTER(CONTROL, MT_RX_FILTR_CFG_ACK | 229 MT_RX_FILTR_CFG_CTS | 230 MT_RX_FILTR_CFG_CFEND | 231 MT_RX_FILTR_CFG_CFACK | 232 MT_RX_FILTR_CFG_BA | 233 MT_RX_FILTR_CFG_CTRL_RSV); 234 MT76_FILTER(PSPOLL, MT_RX_FILTR_CFG_PSPOLL); 235 236 *total_flags = flags; 237 mt76_wr(dev, MT_RX_FILTR_CFG, dev->mt76.rxfilter); 238 239 mutex_unlock(&dev->mt76.mutex); 240 } 241 EXPORT_SYMBOL_GPL(mt76x02_configure_filter); 242 243 int mt76x02_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif, 244 struct ieee80211_sta *sta) 245 { 246 struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76); 247 struct mt76x02_sta *msta = (struct mt76x02_sta *)sta->drv_priv; 248 struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv; 249 int idx = 0; 250 251 memset(msta, 0, sizeof(*msta)); 252 253 idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT76x02_N_WCIDS); 254 if (idx < 0) 255 return -ENOSPC; 256 257 msta->vif = mvif; 258 msta->wcid.sta = 1; 259 msta->wcid.idx = idx; 260 msta->wcid.hw_key_idx = -1; 261 mt76x02_mac_wcid_setup(dev, idx, mvif->idx, sta->addr); 262 mt76x02_mac_wcid_set_drop(dev, idx, false); 263 ewma_pktlen_init(&msta->pktlen); 264 265 if (vif->type == NL80211_IFTYPE_AP) 266 set_bit(MT_WCID_FLAG_CHECK_PS, &msta->wcid.flags); 267 268 return 0; 269 } 270 EXPORT_SYMBOL_GPL(mt76x02_sta_add); 271 272 void mt76x02_sta_remove(struct mt76_dev *mdev, struct ieee80211_vif *vif, 273 struct ieee80211_sta *sta) 274 { 275 struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76); 276 struct mt76_wcid *wcid = (struct mt76_wcid *)sta->drv_priv; 277 int idx = wcid->idx; 278 279 mt76x02_mac_wcid_set_drop(dev, idx, true); 280 mt76x02_mac_wcid_setup(dev, idx, 0, NULL); 281 } 282 EXPORT_SYMBOL_GPL(mt76x02_sta_remove); 283 284 static void 285 mt76x02_vif_init(struct mt76x02_dev *dev, struct ieee80211_vif *vif, 286 unsigned int idx) 287 { 288 struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv; 289 struct mt76_txq *mtxq; 290 291 memset(mvif, 0, sizeof(*mvif)); 292 293 mvif->idx = idx; 294 mvif->group_wcid.idx = MT_VIF_WCID(idx); 295 mvif->group_wcid.hw_key_idx = -1; 296 mtxq = (struct mt76_txq *)vif->txq->drv_priv; 297 mtxq->wcid = &mvif->group_wcid; 298 } 299 300 int 301 mt76x02_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) 302 { 303 struct mt76x02_dev *dev = hw->priv; 304 unsigned int idx = 0; 305 306 /* Allow to change address in HW if we create first interface. */ 307 if (!dev->mt76.vif_mask && 308 (((vif->addr[0] ^ dev->mphy.macaddr[0]) & ~GENMASK(4, 1)) || 309 memcmp(vif->addr + 1, dev->mphy.macaddr + 1, ETH_ALEN - 1))) 310 mt76x02_mac_setaddr(dev, vif->addr); 311 312 if (vif->addr[0] & BIT(1)) 313 idx = 1 + (((dev->mphy.macaddr[0] ^ vif->addr[0]) >> 2) & 7); 314 315 /* 316 * Client mode typically only has one configurable BSSID register, 317 * which is used for bssidx=0. This is linked to the MAC address. 318 * Since mac80211 allows changing interface types, and we cannot 319 * force the use of the primary MAC address for a station mode 320 * interface, we need some other way of configuring a per-interface 321 * remote BSSID. 322 * The hardware provides an AP-Client feature, where bssidx 0-7 are 323 * used for AP mode and bssidx 8-15 for client mode. 324 * We shift the station interface bss index by 8 to force the 325 * hardware to recognize the BSSID. 326 * The resulting bssidx mismatch for unicast frames is ignored by hw. 327 */ 328 if (vif->type == NL80211_IFTYPE_STATION) 329 idx += 8; 330 331 /* vif is already set or idx is 8 for AP/Mesh/... */ 332 if (dev->mt76.vif_mask & BIT(idx) || 333 (vif->type != NL80211_IFTYPE_STATION && idx > 7)) 334 return -EBUSY; 335 336 dev->mt76.vif_mask |= BIT(idx); 337 338 mt76x02_vif_init(dev, vif, idx); 339 return 0; 340 } 341 EXPORT_SYMBOL_GPL(mt76x02_add_interface); 342 343 void mt76x02_remove_interface(struct ieee80211_hw *hw, 344 struct ieee80211_vif *vif) 345 { 346 struct mt76x02_dev *dev = hw->priv; 347 struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv; 348 349 dev->mt76.vif_mask &= ~BIT(mvif->idx); 350 } 351 EXPORT_SYMBOL_GPL(mt76x02_remove_interface); 352 353 int mt76x02_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 354 struct ieee80211_ampdu_params *params) 355 { 356 enum ieee80211_ampdu_mlme_action action = params->action; 357 struct ieee80211_sta *sta = params->sta; 358 struct mt76x02_dev *dev = hw->priv; 359 struct mt76x02_sta *msta = (struct mt76x02_sta *)sta->drv_priv; 360 struct ieee80211_txq *txq = sta->txq[params->tid]; 361 u16 tid = params->tid; 362 u16 ssn = params->ssn; 363 struct mt76_txq *mtxq; 364 int ret = 0; 365 366 if (!txq) 367 return -EINVAL; 368 369 mtxq = (struct mt76_txq *)txq->drv_priv; 370 371 mutex_lock(&dev->mt76.mutex); 372 switch (action) { 373 case IEEE80211_AMPDU_RX_START: 374 mt76_rx_aggr_start(&dev->mt76, &msta->wcid, tid, 375 ssn, params->buf_size); 376 mt76_set(dev, MT_WCID_ADDR(msta->wcid.idx) + 4, BIT(16 + tid)); 377 break; 378 case IEEE80211_AMPDU_RX_STOP: 379 mt76_rx_aggr_stop(&dev->mt76, &msta->wcid, tid); 380 mt76_clear(dev, MT_WCID_ADDR(msta->wcid.idx) + 4, 381 BIT(16 + tid)); 382 break; 383 case IEEE80211_AMPDU_TX_OPERATIONAL: 384 mtxq->aggr = true; 385 mtxq->send_bar = false; 386 ieee80211_send_bar(vif, sta->addr, tid, mtxq->agg_ssn); 387 break; 388 case IEEE80211_AMPDU_TX_STOP_FLUSH: 389 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 390 mtxq->aggr = false; 391 break; 392 case IEEE80211_AMPDU_TX_START: 393 mtxq->agg_ssn = IEEE80211_SN_TO_SEQ(ssn); 394 ret = IEEE80211_AMPDU_TX_START_IMMEDIATE; 395 break; 396 case IEEE80211_AMPDU_TX_STOP_CONT: 397 mtxq->aggr = false; 398 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 399 break; 400 } 401 mutex_unlock(&dev->mt76.mutex); 402 403 return ret; 404 } 405 EXPORT_SYMBOL_GPL(mt76x02_ampdu_action); 406 407 int mt76x02_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, 408 struct ieee80211_vif *vif, struct ieee80211_sta *sta, 409 struct ieee80211_key_conf *key) 410 { 411 struct mt76x02_dev *dev = hw->priv; 412 struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv; 413 struct mt76x02_sta *msta; 414 struct mt76_wcid *wcid; 415 int idx = key->keyidx; 416 int ret; 417 418 /* fall back to sw encryption for unsupported ciphers */ 419 switch (key->cipher) { 420 case WLAN_CIPHER_SUITE_WEP40: 421 case WLAN_CIPHER_SUITE_WEP104: 422 case WLAN_CIPHER_SUITE_TKIP: 423 case WLAN_CIPHER_SUITE_CCMP: 424 break; 425 default: 426 return -EOPNOTSUPP; 427 } 428 429 /* 430 * The hardware does not support per-STA RX GTK, fall back 431 * to software mode for these. 432 */ 433 if ((vif->type == NL80211_IFTYPE_ADHOC || 434 vif->type == NL80211_IFTYPE_MESH_POINT) && 435 (key->cipher == WLAN_CIPHER_SUITE_TKIP || 436 key->cipher == WLAN_CIPHER_SUITE_CCMP) && 437 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) 438 return -EOPNOTSUPP; 439 440 /* 441 * In USB AP mode, broadcast/multicast frames are setup in beacon 442 * data registers and sent via HW beacons engine, they require to 443 * be already encrypted. 444 */ 445 if (mt76_is_usb(&dev->mt76) && 446 vif->type == NL80211_IFTYPE_AP && 447 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) 448 return -EOPNOTSUPP; 449 450 msta = sta ? (struct mt76x02_sta *)sta->drv_priv : NULL; 451 wcid = msta ? &msta->wcid : &mvif->group_wcid; 452 453 if (cmd == SET_KEY) { 454 key->hw_key_idx = wcid->idx; 455 wcid->hw_key_idx = idx; 456 if (key->flags & IEEE80211_KEY_FLAG_RX_MGMT) { 457 key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX; 458 wcid->sw_iv = true; 459 } 460 } else { 461 if (idx == wcid->hw_key_idx) { 462 wcid->hw_key_idx = -1; 463 wcid->sw_iv = false; 464 } 465 466 key = NULL; 467 } 468 mt76_wcid_key_setup(&dev->mt76, wcid, key); 469 470 if (!msta) { 471 if (key || wcid->hw_key_idx == idx) { 472 ret = mt76x02_mac_wcid_set_key(dev, wcid->idx, key); 473 if (ret) 474 return ret; 475 } 476 477 return mt76x02_mac_shared_key_setup(dev, mvif->idx, idx, key); 478 } 479 480 return mt76x02_mac_wcid_set_key(dev, msta->wcid.idx, key); 481 } 482 EXPORT_SYMBOL_GPL(mt76x02_set_key); 483 484 int mt76x02_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 485 u16 queue, const struct ieee80211_tx_queue_params *params) 486 { 487 struct mt76x02_dev *dev = hw->priv; 488 u8 cw_min = 5, cw_max = 10, qid; 489 u32 val; 490 491 qid = dev->mphy.q_tx[queue]->hw_idx; 492 493 if (params->cw_min) 494 cw_min = fls(params->cw_min); 495 if (params->cw_max) 496 cw_max = fls(params->cw_max); 497 498 val = FIELD_PREP(MT_EDCA_CFG_TXOP, params->txop) | 499 FIELD_PREP(MT_EDCA_CFG_AIFSN, params->aifs) | 500 FIELD_PREP(MT_EDCA_CFG_CWMIN, cw_min) | 501 FIELD_PREP(MT_EDCA_CFG_CWMAX, cw_max); 502 mt76_wr(dev, MT_EDCA_CFG_AC(qid), val); 503 504 val = mt76_rr(dev, MT_WMM_TXOP(qid)); 505 val &= ~(MT_WMM_TXOP_MASK << MT_WMM_TXOP_SHIFT(qid)); 506 val |= params->txop << MT_WMM_TXOP_SHIFT(qid); 507 mt76_wr(dev, MT_WMM_TXOP(qid), val); 508 509 val = mt76_rr(dev, MT_WMM_AIFSN); 510 val &= ~(MT_WMM_AIFSN_MASK << MT_WMM_AIFSN_SHIFT(qid)); 511 val |= params->aifs << MT_WMM_AIFSN_SHIFT(qid); 512 mt76_wr(dev, MT_WMM_AIFSN, val); 513 514 val = mt76_rr(dev, MT_WMM_CWMIN); 515 val &= ~(MT_WMM_CWMIN_MASK << MT_WMM_CWMIN_SHIFT(qid)); 516 val |= cw_min << MT_WMM_CWMIN_SHIFT(qid); 517 mt76_wr(dev, MT_WMM_CWMIN, val); 518 519 val = mt76_rr(dev, MT_WMM_CWMAX); 520 val &= ~(MT_WMM_CWMAX_MASK << MT_WMM_CWMAX_SHIFT(qid)); 521 val |= cw_max << MT_WMM_CWMAX_SHIFT(qid); 522 mt76_wr(dev, MT_WMM_CWMAX, val); 523 524 return 0; 525 } 526 EXPORT_SYMBOL_GPL(mt76x02_conf_tx); 527 528 void mt76x02_set_tx_ackto(struct mt76x02_dev *dev) 529 { 530 u8 ackto, sifs, slottime = dev->slottime; 531 532 /* As defined by IEEE 802.11-2007 17.3.8.6 */ 533 slottime += 3 * dev->coverage_class; 534 mt76_rmw_field(dev, MT_BKOFF_SLOT_CFG, 535 MT_BKOFF_SLOT_CFG_SLOTTIME, slottime); 536 537 sifs = mt76_get_field(dev, MT_XIFS_TIME_CFG, 538 MT_XIFS_TIME_CFG_OFDM_SIFS); 539 540 ackto = slottime + sifs; 541 mt76_rmw_field(dev, MT_TX_TIMEOUT_CFG, 542 MT_TX_TIMEOUT_CFG_ACKTO, ackto); 543 } 544 EXPORT_SYMBOL_GPL(mt76x02_set_tx_ackto); 545 546 void mt76x02_set_coverage_class(struct ieee80211_hw *hw, 547 s16 coverage_class) 548 { 549 struct mt76x02_dev *dev = hw->priv; 550 551 mutex_lock(&dev->mt76.mutex); 552 dev->coverage_class = max_t(s16, coverage_class, 0); 553 mt76x02_set_tx_ackto(dev); 554 mutex_unlock(&dev->mt76.mutex); 555 } 556 EXPORT_SYMBOL_GPL(mt76x02_set_coverage_class); 557 558 int mt76x02_set_rts_threshold(struct ieee80211_hw *hw, u32 val) 559 { 560 struct mt76x02_dev *dev = hw->priv; 561 562 if (val != ~0 && val > 0xffff) 563 return -EINVAL; 564 565 mutex_lock(&dev->mt76.mutex); 566 mt76x02_mac_set_rts_thresh(dev, val); 567 mutex_unlock(&dev->mt76.mutex); 568 569 return 0; 570 } 571 EXPORT_SYMBOL_GPL(mt76x02_set_rts_threshold); 572 573 void mt76x02_sta_rate_tbl_update(struct ieee80211_hw *hw, 574 struct ieee80211_vif *vif, 575 struct ieee80211_sta *sta) 576 { 577 struct mt76x02_dev *dev = hw->priv; 578 struct mt76x02_sta *msta = (struct mt76x02_sta *)sta->drv_priv; 579 struct ieee80211_sta_rates *rates = rcu_dereference(sta->rates); 580 struct ieee80211_tx_rate rate = {}; 581 582 if (!rates) 583 return; 584 585 rate.idx = rates->rate[0].idx; 586 rate.flags = rates->rate[0].flags; 587 mt76x02_mac_wcid_set_rate(dev, &msta->wcid, &rate); 588 } 589 EXPORT_SYMBOL_GPL(mt76x02_sta_rate_tbl_update); 590 591 void mt76x02_remove_hdr_pad(struct sk_buff *skb, int len) 592 { 593 int hdrlen; 594 595 if (!len) 596 return; 597 598 hdrlen = ieee80211_get_hdrlen_from_skb(skb); 599 memmove(skb->data + len, skb->data, hdrlen); 600 skb_pull(skb, len); 601 } 602 EXPORT_SYMBOL_GPL(mt76x02_remove_hdr_pad); 603 604 void mt76x02_sw_scan_complete(struct ieee80211_hw *hw, 605 struct ieee80211_vif *vif) 606 { 607 struct mt76x02_dev *dev = hw->priv; 608 609 clear_bit(MT76_SCANNING, &dev->mphy.state); 610 if (dev->cal.gain_init_done) { 611 /* Restore AGC gain and resume calibration after scanning. */ 612 dev->cal.low_gain = -1; 613 ieee80211_queue_delayed_work(hw, &dev->cal_work, 0); 614 } 615 } 616 EXPORT_SYMBOL_GPL(mt76x02_sw_scan_complete); 617 618 void mt76x02_sta_ps(struct mt76_dev *mdev, struct ieee80211_sta *sta, 619 bool ps) 620 { 621 struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76); 622 struct mt76x02_sta *msta = (struct mt76x02_sta *)sta->drv_priv; 623 int idx = msta->wcid.idx; 624 625 mt76_stop_tx_queues(&dev->mphy, sta, true); 626 if (mt76_is_mmio(mdev)) 627 mt76x02_mac_wcid_set_drop(dev, idx, ps); 628 } 629 EXPORT_SYMBOL_GPL(mt76x02_sta_ps); 630 631 void mt76x02_bss_info_changed(struct ieee80211_hw *hw, 632 struct ieee80211_vif *vif, 633 struct ieee80211_bss_conf *info, 634 u32 changed) 635 { 636 struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv; 637 struct mt76x02_dev *dev = hw->priv; 638 639 mutex_lock(&dev->mt76.mutex); 640 641 if (changed & BSS_CHANGED_BSSID) 642 mt76x02_mac_set_bssid(dev, mvif->idx, info->bssid); 643 644 if (changed & BSS_CHANGED_HT || changed & BSS_CHANGED_ERP_CTS_PROT) 645 mt76x02_mac_set_tx_protection(dev, info->use_cts_prot, 646 info->ht_operation_mode); 647 648 if (changed & BSS_CHANGED_BEACON_INT) { 649 mt76_rmw_field(dev, MT_BEACON_TIME_CFG, 650 MT_BEACON_TIME_CFG_INTVAL, 651 info->beacon_int << 4); 652 dev->mt76.beacon_int = info->beacon_int; 653 } 654 655 if (changed & BSS_CHANGED_BEACON_ENABLED) 656 mt76x02_mac_set_beacon_enable(dev, vif, info->enable_beacon); 657 658 if (changed & BSS_CHANGED_ERP_PREAMBLE) 659 mt76x02_mac_set_short_preamble(dev, info->use_short_preamble); 660 661 if (changed & BSS_CHANGED_ERP_SLOT) { 662 int slottime = info->use_short_slot ? 9 : 20; 663 664 dev->slottime = slottime; 665 mt76x02_set_tx_ackto(dev); 666 } 667 668 mutex_unlock(&dev->mt76.mutex); 669 } 670 EXPORT_SYMBOL_GPL(mt76x02_bss_info_changed); 671 672 void mt76x02_config_mac_addr_list(struct mt76x02_dev *dev) 673 { 674 struct ieee80211_hw *hw = mt76_hw(dev); 675 struct wiphy *wiphy = hw->wiphy; 676 int i; 677 678 for (i = 0; i < ARRAY_SIZE(dev->macaddr_list); i++) { 679 u8 *addr = dev->macaddr_list[i].addr; 680 681 memcpy(addr, dev->mphy.macaddr, ETH_ALEN); 682 683 if (!i) 684 continue; 685 686 addr[0] |= BIT(1); 687 addr[0] ^= ((i - 1) << 2); 688 } 689 wiphy->addresses = dev->macaddr_list; 690 wiphy->n_addresses = ARRAY_SIZE(dev->macaddr_list); 691 } 692 EXPORT_SYMBOL_GPL(mt76x02_config_mac_addr_list); 693 694 MODULE_LICENSE("Dual BSD/GPL"); 695