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 MT76x02_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 struct ieee80211_rate mt76x02_rates[] = { 18 MT76x02_CCK_RATE(0, 10), 19 MT76x02_CCK_RATE(1, 20), 20 MT76x02_CCK_RATE(2, 55), 21 MT76x02_CCK_RATE(3, 110), 22 OFDM_RATE(0, 60), 23 OFDM_RATE(1, 90), 24 OFDM_RATE(2, 120), 25 OFDM_RATE(3, 180), 26 OFDM_RATE(4, 240), 27 OFDM_RATE(5, 360), 28 OFDM_RATE(6, 480), 29 OFDM_RATE(7, 540), 30 }; 31 EXPORT_SYMBOL_GPL(mt76x02_rates); 32 33 static const struct ieee80211_iface_limit mt76x02_if_limits[] = { 34 { 35 .max = 1, 36 .types = BIT(NL80211_IFTYPE_ADHOC) 37 }, { 38 .max = 8, 39 .types = BIT(NL80211_IFTYPE_STATION) | 40 #ifdef CONFIG_MAC80211_MESH 41 BIT(NL80211_IFTYPE_MESH_POINT) | 42 #endif 43 BIT(NL80211_IFTYPE_P2P_CLIENT) | 44 BIT(NL80211_IFTYPE_P2P_GO) | 45 BIT(NL80211_IFTYPE_AP) 46 }, 47 }; 48 49 static const struct ieee80211_iface_limit mt76x02u_if_limits[] = { 50 { 51 .max = 1, 52 .types = BIT(NL80211_IFTYPE_ADHOC) 53 }, { 54 .max = 2, 55 .types = BIT(NL80211_IFTYPE_STATION) | 56 #ifdef CONFIG_MAC80211_MESH 57 BIT(NL80211_IFTYPE_MESH_POINT) | 58 #endif 59 BIT(NL80211_IFTYPE_P2P_CLIENT) | 60 BIT(NL80211_IFTYPE_P2P_GO) | 61 BIT(NL80211_IFTYPE_AP) 62 }, 63 }; 64 65 static const struct ieee80211_iface_combination mt76x02_if_comb[] = { 66 { 67 .limits = mt76x02_if_limits, 68 .n_limits = ARRAY_SIZE(mt76x02_if_limits), 69 .max_interfaces = 8, 70 .num_different_channels = 1, 71 .beacon_int_infra_match = true, 72 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) | 73 BIT(NL80211_CHAN_WIDTH_20) | 74 BIT(NL80211_CHAN_WIDTH_40) | 75 BIT(NL80211_CHAN_WIDTH_80), 76 } 77 }; 78 79 static const struct ieee80211_iface_combination mt76x02u_if_comb[] = { 80 { 81 .limits = mt76x02u_if_limits, 82 .n_limits = ARRAY_SIZE(mt76x02u_if_limits), 83 .max_interfaces = 2, 84 .num_different_channels = 1, 85 .beacon_int_infra_match = true, 86 } 87 }; 88 89 static void 90 mt76x02_led_set_config(struct mt76_dev *mdev, u8 delay_on, 91 u8 delay_off) 92 { 93 struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, 94 mt76); 95 u32 val; 96 97 val = FIELD_PREP(MT_LED_STATUS_DURATION, 0xff) | 98 FIELD_PREP(MT_LED_STATUS_OFF, delay_off) | 99 FIELD_PREP(MT_LED_STATUS_ON, delay_on); 100 101 mt76_wr(dev, MT_LED_S0(mdev->led_pin), val); 102 mt76_wr(dev, MT_LED_S1(mdev->led_pin), val); 103 104 val = MT_LED_CTRL_REPLAY(mdev->led_pin) | 105 MT_LED_CTRL_KICK(mdev->led_pin); 106 if (mdev->led_al) 107 val |= MT_LED_CTRL_POLARITY(mdev->led_pin); 108 mt76_wr(dev, MT_LED_CTRL, val); 109 } 110 111 static int 112 mt76x02_led_set_blink(struct led_classdev *led_cdev, 113 unsigned long *delay_on, 114 unsigned long *delay_off) 115 { 116 struct mt76_dev *mdev = container_of(led_cdev, struct mt76_dev, 117 led_cdev); 118 u8 delta_on, delta_off; 119 120 delta_off = max_t(u8, *delay_off / 10, 1); 121 delta_on = max_t(u8, *delay_on / 10, 1); 122 123 mt76x02_led_set_config(mdev, delta_on, delta_off); 124 125 return 0; 126 } 127 128 static void 129 mt76x02_led_set_brightness(struct led_classdev *led_cdev, 130 enum led_brightness brightness) 131 { 132 struct mt76_dev *mdev = container_of(led_cdev, struct mt76_dev, 133 led_cdev); 134 135 if (!brightness) 136 mt76x02_led_set_config(mdev, 0, 0xff); 137 else 138 mt76x02_led_set_config(mdev, 0xff, 0); 139 } 140 141 void mt76x02_init_device(struct mt76x02_dev *dev) 142 { 143 struct ieee80211_hw *hw = mt76_hw(dev); 144 struct wiphy *wiphy = hw->wiphy; 145 146 INIT_DELAYED_WORK(&dev->mphy.mac_work, mt76x02_mac_work); 147 148 hw->queues = 4; 149 hw->max_rates = 1; 150 hw->max_report_rates = 7; 151 hw->max_rate_tries = 1; 152 hw->extra_tx_headroom = 2; 153 154 if (mt76_is_usb(&dev->mt76)) { 155 hw->extra_tx_headroom += sizeof(struct mt76x02_txwi) + 156 MT_DMA_HDR_LEN; 157 wiphy->iface_combinations = mt76x02u_if_comb; 158 wiphy->n_iface_combinations = ARRAY_SIZE(mt76x02u_if_comb); 159 } else { 160 INIT_DELAYED_WORK(&dev->wdt_work, mt76x02_wdt_work); 161 162 mt76x02_dfs_init_detector(dev); 163 164 wiphy->reg_notifier = mt76x02_regd_notifier; 165 wiphy->iface_combinations = mt76x02_if_comb; 166 wiphy->n_iface_combinations = ARRAY_SIZE(mt76x02_if_comb); 167 168 /* init led callbacks */ 169 if (IS_ENABLED(CONFIG_MT76_LEDS)) { 170 dev->mt76.led_cdev.brightness_set = 171 mt76x02_led_set_brightness; 172 dev->mt76.led_cdev.blink_set = mt76x02_led_set_blink; 173 } 174 } 175 176 wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_VHT_IBSS); 177 178 hw->sta_data_size = sizeof(struct mt76x02_sta); 179 hw->vif_data_size = sizeof(struct mt76x02_vif); 180 181 ieee80211_hw_set(hw, SUPPORTS_HT_CCK_RATES); 182 ieee80211_hw_set(hw, HOST_BROADCAST_PS_BUFFERING); 183 ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR); 184 185 dev->mt76.global_wcid.idx = 255; 186 dev->mt76.global_wcid.hw_key_idx = -1; 187 dev->slottime = 9; 188 189 if (is_mt76x2(dev)) { 190 dev->mphy.sband_2g.sband.ht_cap.cap |= 191 IEEE80211_HT_CAP_LDPC_CODING; 192 dev->mphy.sband_5g.sband.ht_cap.cap |= 193 IEEE80211_HT_CAP_LDPC_CODING; 194 dev->mphy.chainmask = 0x202; 195 dev->mphy.antenna_mask = 3; 196 } else { 197 dev->mphy.chainmask = 0x101; 198 dev->mphy.antenna_mask = 1; 199 } 200 } 201 EXPORT_SYMBOL_GPL(mt76x02_init_device); 202 203 void mt76x02_configure_filter(struct ieee80211_hw *hw, 204 unsigned int changed_flags, 205 unsigned int *total_flags, u64 multicast) 206 { 207 struct mt76x02_dev *dev = hw->priv; 208 u32 flags = 0; 209 210 #define MT76_FILTER(_flag, _hw) do { \ 211 flags |= *total_flags & FIF_##_flag; \ 212 dev->mt76.rxfilter &= ~(_hw); \ 213 dev->mt76.rxfilter |= !(flags & FIF_##_flag) * (_hw); \ 214 } while (0) 215 216 mutex_lock(&dev->mt76.mutex); 217 218 dev->mt76.rxfilter &= ~MT_RX_FILTR_CFG_OTHER_BSS; 219 220 MT76_FILTER(FCSFAIL, MT_RX_FILTR_CFG_CRC_ERR); 221 MT76_FILTER(PLCPFAIL, MT_RX_FILTR_CFG_PHY_ERR); 222 MT76_FILTER(CONTROL, MT_RX_FILTR_CFG_ACK | 223 MT_RX_FILTR_CFG_CTS | 224 MT_RX_FILTR_CFG_CFEND | 225 MT_RX_FILTR_CFG_CFACK | 226 MT_RX_FILTR_CFG_BA | 227 MT_RX_FILTR_CFG_CTRL_RSV); 228 MT76_FILTER(PSPOLL, MT_RX_FILTR_CFG_PSPOLL); 229 230 *total_flags = flags; 231 mt76_wr(dev, MT_RX_FILTR_CFG, dev->mt76.rxfilter); 232 233 mutex_unlock(&dev->mt76.mutex); 234 } 235 EXPORT_SYMBOL_GPL(mt76x02_configure_filter); 236 237 int mt76x02_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif, 238 struct ieee80211_sta *sta) 239 { 240 struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76); 241 struct mt76x02_sta *msta = (struct mt76x02_sta *)sta->drv_priv; 242 struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv; 243 int idx = 0; 244 245 memset(msta, 0, sizeof(*msta)); 246 247 idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT76x02_N_WCIDS); 248 if (idx < 0) 249 return -ENOSPC; 250 251 msta->vif = mvif; 252 msta->wcid.sta = 1; 253 msta->wcid.idx = idx; 254 msta->wcid.hw_key_idx = -1; 255 mt76x02_mac_wcid_setup(dev, idx, mvif->idx, sta->addr); 256 mt76x02_mac_wcid_set_drop(dev, idx, false); 257 ewma_pktlen_init(&msta->pktlen); 258 259 if (vif->type == NL80211_IFTYPE_AP) 260 set_bit(MT_WCID_FLAG_CHECK_PS, &msta->wcid.flags); 261 262 return 0; 263 } 264 EXPORT_SYMBOL_GPL(mt76x02_sta_add); 265 266 void mt76x02_sta_remove(struct mt76_dev *mdev, struct ieee80211_vif *vif, 267 struct ieee80211_sta *sta) 268 { 269 struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76); 270 struct mt76_wcid *wcid = (struct mt76_wcid *)sta->drv_priv; 271 int idx = wcid->idx; 272 273 mt76x02_mac_wcid_set_drop(dev, idx, true); 274 mt76x02_mac_wcid_setup(dev, idx, 0, NULL); 275 } 276 EXPORT_SYMBOL_GPL(mt76x02_sta_remove); 277 278 static void 279 mt76x02_vif_init(struct mt76x02_dev *dev, struct ieee80211_vif *vif, 280 unsigned int idx) 281 { 282 struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv; 283 struct mt76_txq *mtxq; 284 285 memset(mvif, 0, sizeof(*mvif)); 286 287 mvif->idx = idx; 288 mvif->group_wcid.idx = MT_VIF_WCID(idx); 289 mvif->group_wcid.hw_key_idx = -1; 290 mt76_packet_id_init(&mvif->group_wcid); 291 292 mtxq = (struct mt76_txq *)vif->txq->drv_priv; 293 mtxq->wcid = &mvif->group_wcid; 294 } 295 296 int 297 mt76x02_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) 298 { 299 struct mt76x02_dev *dev = hw->priv; 300 unsigned int idx = 0; 301 302 /* Allow to change address in HW if we create first interface. */ 303 if (!dev->mt76.vif_mask && 304 (((vif->addr[0] ^ dev->mphy.macaddr[0]) & ~GENMASK(4, 1)) || 305 memcmp(vif->addr + 1, dev->mphy.macaddr + 1, ETH_ALEN - 1))) 306 mt76x02_mac_setaddr(dev, vif->addr); 307 308 if (vif->addr[0] & BIT(1)) 309 idx = 1 + (((dev->mphy.macaddr[0] ^ vif->addr[0]) >> 2) & 7); 310 311 /* 312 * Client mode typically only has one configurable BSSID register, 313 * which is used for bssidx=0. This is linked to the MAC address. 314 * Since mac80211 allows changing interface types, and we cannot 315 * force the use of the primary MAC address for a station mode 316 * interface, we need some other way of configuring a per-interface 317 * remote BSSID. 318 * The hardware provides an AP-Client feature, where bssidx 0-7 are 319 * used for AP mode and bssidx 8-15 for client mode. 320 * We shift the station interface bss index by 8 to force the 321 * hardware to recognize the BSSID. 322 * The resulting bssidx mismatch for unicast frames is ignored by hw. 323 */ 324 if (vif->type == NL80211_IFTYPE_STATION) 325 idx += 8; 326 327 /* vif is already set or idx is 8 for AP/Mesh/... */ 328 if (dev->mt76.vif_mask & BIT(idx) || 329 (vif->type != NL80211_IFTYPE_STATION && idx > 7)) 330 return -EBUSY; 331 332 dev->mt76.vif_mask |= BIT(idx); 333 334 mt76x02_vif_init(dev, vif, idx); 335 return 0; 336 } 337 EXPORT_SYMBOL_GPL(mt76x02_add_interface); 338 339 void mt76x02_remove_interface(struct ieee80211_hw *hw, 340 struct ieee80211_vif *vif) 341 { 342 struct mt76x02_dev *dev = hw->priv; 343 struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv; 344 345 dev->mt76.vif_mask &= ~BIT(mvif->idx); 346 mt76_packet_id_flush(&dev->mt76, &mvif->group_wcid); 347 } 348 EXPORT_SYMBOL_GPL(mt76x02_remove_interface); 349 350 int mt76x02_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 351 struct ieee80211_ampdu_params *params) 352 { 353 enum ieee80211_ampdu_mlme_action action = params->action; 354 struct ieee80211_sta *sta = params->sta; 355 struct mt76x02_dev *dev = hw->priv; 356 struct mt76x02_sta *msta = (struct mt76x02_sta *)sta->drv_priv; 357 struct ieee80211_txq *txq = sta->txq[params->tid]; 358 u16 tid = params->tid; 359 u16 ssn = params->ssn; 360 struct mt76_txq *mtxq; 361 int ret = 0; 362 363 if (!txq) 364 return -EINVAL; 365 366 mtxq = (struct mt76_txq *)txq->drv_priv; 367 368 mutex_lock(&dev->mt76.mutex); 369 switch (action) { 370 case IEEE80211_AMPDU_RX_START: 371 mt76_rx_aggr_start(&dev->mt76, &msta->wcid, tid, 372 ssn, params->buf_size); 373 mt76_set(dev, MT_WCID_ADDR(msta->wcid.idx) + 4, BIT(16 + tid)); 374 break; 375 case IEEE80211_AMPDU_RX_STOP: 376 mt76_rx_aggr_stop(&dev->mt76, &msta->wcid, tid); 377 mt76_clear(dev, MT_WCID_ADDR(msta->wcid.idx) + 4, 378 BIT(16 + tid)); 379 break; 380 case IEEE80211_AMPDU_TX_OPERATIONAL: 381 mtxq->aggr = true; 382 mtxq->send_bar = false; 383 ieee80211_send_bar(vif, sta->addr, tid, mtxq->agg_ssn); 384 break; 385 case IEEE80211_AMPDU_TX_STOP_FLUSH: 386 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 387 mtxq->aggr = false; 388 break; 389 case IEEE80211_AMPDU_TX_START: 390 mtxq->agg_ssn = IEEE80211_SN_TO_SEQ(ssn); 391 ret = IEEE80211_AMPDU_TX_START_IMMEDIATE; 392 break; 393 case IEEE80211_AMPDU_TX_STOP_CONT: 394 mtxq->aggr = false; 395 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 396 break; 397 } 398 mutex_unlock(&dev->mt76.mutex); 399 400 return ret; 401 } 402 EXPORT_SYMBOL_GPL(mt76x02_ampdu_action); 403 404 int mt76x02_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, 405 struct ieee80211_vif *vif, struct ieee80211_sta *sta, 406 struct ieee80211_key_conf *key) 407 { 408 struct mt76x02_dev *dev = hw->priv; 409 struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv; 410 struct mt76x02_sta *msta; 411 struct mt76_wcid *wcid; 412 int idx = key->keyidx; 413 int ret; 414 415 /* fall back to sw encryption for unsupported ciphers */ 416 switch (key->cipher) { 417 case WLAN_CIPHER_SUITE_WEP40: 418 case WLAN_CIPHER_SUITE_WEP104: 419 case WLAN_CIPHER_SUITE_TKIP: 420 case WLAN_CIPHER_SUITE_CCMP: 421 break; 422 default: 423 return -EOPNOTSUPP; 424 } 425 426 /* 427 * The hardware does not support per-STA RX GTK, fall back 428 * to software mode for these. 429 */ 430 if ((vif->type == NL80211_IFTYPE_ADHOC || 431 vif->type == NL80211_IFTYPE_MESH_POINT) && 432 (key->cipher == WLAN_CIPHER_SUITE_TKIP || 433 key->cipher == WLAN_CIPHER_SUITE_CCMP) && 434 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) 435 return -EOPNOTSUPP; 436 437 /* 438 * In USB AP mode, broadcast/multicast frames are setup in beacon 439 * data registers and sent via HW beacons engine, they require to 440 * be already encrypted. 441 */ 442 if (mt76_is_usb(&dev->mt76) && 443 vif->type == NL80211_IFTYPE_AP && 444 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) 445 return -EOPNOTSUPP; 446 447 /* MT76x0 GTK offloading does not work with more than one VIF */ 448 if (is_mt76x0(dev) && !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) 449 return -EOPNOTSUPP; 450 451 msta = sta ? (struct mt76x02_sta *)sta->drv_priv : NULL; 452 wcid = msta ? &msta->wcid : &mvif->group_wcid; 453 454 if (cmd == SET_KEY) { 455 key->hw_key_idx = wcid->idx; 456 wcid->hw_key_idx = idx; 457 if (key->flags & IEEE80211_KEY_FLAG_RX_MGMT) { 458 key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX; 459 wcid->sw_iv = true; 460 } 461 } else { 462 if (idx == wcid->hw_key_idx) { 463 wcid->hw_key_idx = -1; 464 wcid->sw_iv = false; 465 } 466 467 key = NULL; 468 } 469 mt76_wcid_key_setup(&dev->mt76, wcid, key); 470 471 if (!msta) { 472 if (key || wcid->hw_key_idx == idx) { 473 ret = mt76x02_mac_wcid_set_key(dev, wcid->idx, key); 474 if (ret) 475 return ret; 476 } 477 478 return mt76x02_mac_shared_key_setup(dev, mvif->idx, idx, key); 479 } 480 481 return mt76x02_mac_wcid_set_key(dev, msta->wcid.idx, key); 482 } 483 EXPORT_SYMBOL_GPL(mt76x02_set_key); 484 485 int mt76x02_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 486 u16 queue, const struct ieee80211_tx_queue_params *params) 487 { 488 struct mt76x02_dev *dev = hw->priv; 489 u8 cw_min = 5, cw_max = 10, qid; 490 u32 val; 491 492 qid = dev->mphy.q_tx[queue]->hw_idx; 493 494 if (params->cw_min) 495 cw_min = fls(params->cw_min); 496 if (params->cw_max) 497 cw_max = fls(params->cw_max); 498 499 val = FIELD_PREP(MT_EDCA_CFG_TXOP, params->txop) | 500 FIELD_PREP(MT_EDCA_CFG_AIFSN, params->aifs) | 501 FIELD_PREP(MT_EDCA_CFG_CWMIN, cw_min) | 502 FIELD_PREP(MT_EDCA_CFG_CWMAX, cw_max); 503 mt76_wr(dev, MT_EDCA_CFG_AC(qid), val); 504 505 val = mt76_rr(dev, MT_WMM_TXOP(qid)); 506 val &= ~(MT_WMM_TXOP_MASK << MT_WMM_TXOP_SHIFT(qid)); 507 val |= params->txop << MT_WMM_TXOP_SHIFT(qid); 508 mt76_wr(dev, MT_WMM_TXOP(qid), val); 509 510 val = mt76_rr(dev, MT_WMM_AIFSN); 511 val &= ~(MT_WMM_AIFSN_MASK << MT_WMM_AIFSN_SHIFT(qid)); 512 val |= params->aifs << MT_WMM_AIFSN_SHIFT(qid); 513 mt76_wr(dev, MT_WMM_AIFSN, val); 514 515 val = mt76_rr(dev, MT_WMM_CWMIN); 516 val &= ~(MT_WMM_CWMIN_MASK << MT_WMM_CWMIN_SHIFT(qid)); 517 val |= cw_min << MT_WMM_CWMIN_SHIFT(qid); 518 mt76_wr(dev, MT_WMM_CWMIN, val); 519 520 val = mt76_rr(dev, MT_WMM_CWMAX); 521 val &= ~(MT_WMM_CWMAX_MASK << MT_WMM_CWMAX_SHIFT(qid)); 522 val |= cw_max << MT_WMM_CWMAX_SHIFT(qid); 523 mt76_wr(dev, MT_WMM_CWMAX, val); 524 525 return 0; 526 } 527 EXPORT_SYMBOL_GPL(mt76x02_conf_tx); 528 529 void mt76x02_set_tx_ackto(struct mt76x02_dev *dev) 530 { 531 u8 ackto, sifs, slottime = dev->slottime; 532 533 /* As defined by IEEE 802.11-2007 17.3.8.6 */ 534 slottime += 3 * dev->coverage_class; 535 mt76_rmw_field(dev, MT_BKOFF_SLOT_CFG, 536 MT_BKOFF_SLOT_CFG_SLOTTIME, slottime); 537 538 sifs = mt76_get_field(dev, MT_XIFS_TIME_CFG, 539 MT_XIFS_TIME_CFG_OFDM_SIFS); 540 541 ackto = slottime + sifs; 542 mt76_rmw_field(dev, MT_TX_TIMEOUT_CFG, 543 MT_TX_TIMEOUT_CFG_ACKTO, ackto); 544 } 545 EXPORT_SYMBOL_GPL(mt76x02_set_tx_ackto); 546 547 void mt76x02_set_coverage_class(struct ieee80211_hw *hw, 548 s16 coverage_class) 549 { 550 struct mt76x02_dev *dev = hw->priv; 551 552 mutex_lock(&dev->mt76.mutex); 553 dev->coverage_class = max_t(s16, coverage_class, 0); 554 mt76x02_set_tx_ackto(dev); 555 mutex_unlock(&dev->mt76.mutex); 556 } 557 EXPORT_SYMBOL_GPL(mt76x02_set_coverage_class); 558 559 int mt76x02_set_rts_threshold(struct ieee80211_hw *hw, u32 val) 560 { 561 struct mt76x02_dev *dev = hw->priv; 562 563 if (val != ~0 && val > 0xffff) 564 return -EINVAL; 565 566 mutex_lock(&dev->mt76.mutex); 567 mt76x02_mac_set_rts_thresh(dev, val); 568 mutex_unlock(&dev->mt76.mutex); 569 570 return 0; 571 } 572 EXPORT_SYMBOL_GPL(mt76x02_set_rts_threshold); 573 574 void mt76x02_sta_rate_tbl_update(struct ieee80211_hw *hw, 575 struct ieee80211_vif *vif, 576 struct ieee80211_sta *sta) 577 { 578 struct mt76x02_dev *dev = hw->priv; 579 struct mt76x02_sta *msta = (struct mt76x02_sta *)sta->drv_priv; 580 struct ieee80211_sta_rates *rates = rcu_dereference(sta->rates); 581 struct ieee80211_tx_rate rate = {}; 582 583 if (!rates) 584 return; 585 586 rate.idx = rates->rate[0].idx; 587 rate.flags = rates->rate[0].flags; 588 mt76x02_mac_wcid_set_rate(dev, &msta->wcid, &rate); 589 } 590 EXPORT_SYMBOL_GPL(mt76x02_sta_rate_tbl_update); 591 592 void mt76x02_remove_hdr_pad(struct sk_buff *skb, int len) 593 { 594 int hdrlen; 595 596 if (!len) 597 return; 598 599 hdrlen = ieee80211_get_hdrlen_from_skb(skb); 600 memmove(skb->data + len, skb->data, hdrlen); 601 skb_pull(skb, len); 602 } 603 EXPORT_SYMBOL_GPL(mt76x02_remove_hdr_pad); 604 605 void mt76x02_sw_scan_complete(struct ieee80211_hw *hw, 606 struct ieee80211_vif *vif) 607 { 608 struct mt76x02_dev *dev = hw->priv; 609 610 clear_bit(MT76_SCANNING, &dev->mphy.state); 611 if (dev->cal.gain_init_done) { 612 /* Restore AGC gain and resume calibration after scanning. */ 613 dev->cal.low_gain = -1; 614 ieee80211_queue_delayed_work(hw, &dev->cal_work, 0); 615 } 616 } 617 EXPORT_SYMBOL_GPL(mt76x02_sw_scan_complete); 618 619 void mt76x02_sta_ps(struct mt76_dev *mdev, struct ieee80211_sta *sta, 620 bool ps) 621 { 622 struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76); 623 struct mt76x02_sta *msta = (struct mt76x02_sta *)sta->drv_priv; 624 int idx = msta->wcid.idx; 625 626 mt76_stop_tx_queues(&dev->mphy, sta, true); 627 if (mt76_is_mmio(mdev)) 628 mt76x02_mac_wcid_set_drop(dev, idx, ps); 629 } 630 EXPORT_SYMBOL_GPL(mt76x02_sta_ps); 631 632 void mt76x02_bss_info_changed(struct ieee80211_hw *hw, 633 struct ieee80211_vif *vif, 634 struct ieee80211_bss_conf *info, 635 u32 changed) 636 { 637 struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv; 638 struct mt76x02_dev *dev = hw->priv; 639 640 mutex_lock(&dev->mt76.mutex); 641 642 if (changed & BSS_CHANGED_BSSID) 643 mt76x02_mac_set_bssid(dev, mvif->idx, info->bssid); 644 645 if (changed & BSS_CHANGED_HT || changed & BSS_CHANGED_ERP_CTS_PROT) 646 mt76x02_mac_set_tx_protection(dev, info->use_cts_prot, 647 info->ht_operation_mode); 648 649 if (changed & BSS_CHANGED_BEACON_INT) { 650 mt76_rmw_field(dev, MT_BEACON_TIME_CFG, 651 MT_BEACON_TIME_CFG_INTVAL, 652 info->beacon_int << 4); 653 dev->mt76.beacon_int = info->beacon_int; 654 } 655 656 if (changed & BSS_CHANGED_BEACON_ENABLED) 657 mt76x02_mac_set_beacon_enable(dev, vif, info->enable_beacon); 658 659 if (changed & BSS_CHANGED_ERP_PREAMBLE) 660 mt76x02_mac_set_short_preamble(dev, info->use_short_preamble); 661 662 if (changed & BSS_CHANGED_ERP_SLOT) { 663 int slottime = info->use_short_slot ? 9 : 20; 664 665 dev->slottime = slottime; 666 mt76x02_set_tx_ackto(dev); 667 } 668 669 mutex_unlock(&dev->mt76.mutex); 670 } 671 EXPORT_SYMBOL_GPL(mt76x02_bss_info_changed); 672 673 void mt76x02_config_mac_addr_list(struct mt76x02_dev *dev) 674 { 675 struct ieee80211_hw *hw = mt76_hw(dev); 676 struct wiphy *wiphy = hw->wiphy; 677 int i; 678 679 for (i = 0; i < ARRAY_SIZE(dev->macaddr_list); i++) { 680 u8 *addr = dev->macaddr_list[i].addr; 681 682 memcpy(addr, dev->mphy.macaddr, ETH_ALEN); 683 684 if (!i) 685 continue; 686 687 addr[0] |= BIT(1); 688 addr[0] ^= ((i - 1) << 2); 689 } 690 wiphy->addresses = dev->macaddr_list; 691 wiphy->n_addresses = ARRAY_SIZE(dev->macaddr_list); 692 } 693 EXPORT_SYMBOL_GPL(mt76x02_config_mac_addr_list); 694 695 MODULE_LICENSE("Dual BSD/GPL"); 696