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_phy *mphy, u8 delay_on, u8 delay_off) 91 { 92 struct mt76x02_dev *dev = container_of(mphy->dev, struct mt76x02_dev, 93 mt76); 94 u32 val; 95 96 val = FIELD_PREP(MT_LED_STATUS_DURATION, 0xff) | 97 FIELD_PREP(MT_LED_STATUS_OFF, delay_off) | 98 FIELD_PREP(MT_LED_STATUS_ON, delay_on); 99 100 mt76_wr(dev, MT_LED_S0(mphy->leds.pin), val); 101 mt76_wr(dev, MT_LED_S1(mphy->leds.pin), val); 102 103 val = MT_LED_CTRL_REPLAY(mphy->leds.pin) | 104 MT_LED_CTRL_KICK(mphy->leds.pin); 105 if (mphy->leds.al) 106 val |= MT_LED_CTRL_POLARITY(mphy->leds.pin); 107 mt76_wr(dev, MT_LED_CTRL, val); 108 } 109 110 static int 111 mt76x02_led_set_blink(struct led_classdev *led_cdev, 112 unsigned long *delay_on, 113 unsigned long *delay_off) 114 { 115 struct mt76_phy *mphy = container_of(led_cdev, struct mt76_phy, 116 leds.cdev); 117 u8 delta_on, delta_off; 118 119 delta_off = max_t(u8, *delay_off / 10, 1); 120 delta_on = max_t(u8, *delay_on / 10, 1); 121 122 mt76x02_led_set_config(mphy, delta_on, delta_off); 123 124 return 0; 125 } 126 127 static void 128 mt76x02_led_set_brightness(struct led_classdev *led_cdev, 129 enum led_brightness brightness) 130 { 131 struct mt76_phy *mphy = container_of(led_cdev, struct mt76_phy, 132 leds.cdev); 133 134 if (!brightness) 135 mt76x02_led_set_config(mphy, 0, 0xff); 136 else 137 mt76x02_led_set_config(mphy, 0xff, 0); 138 } 139 140 int mt76x02_init_device(struct mt76x02_dev *dev) 141 { 142 struct ieee80211_hw *hw = mt76_hw(dev); 143 struct wiphy *wiphy = hw->wiphy; 144 145 INIT_DELAYED_WORK(&dev->mphy.mac_work, mt76x02_mac_work); 146 147 hw->queues = 4; 148 hw->max_rates = 1; 149 hw->max_report_rates = 7; 150 hw->max_rate_tries = 1; 151 hw->extra_tx_headroom = 2; 152 153 if (mt76_is_usb(&dev->mt76)) { 154 hw->extra_tx_headroom += sizeof(struct mt76x02_txwi) + 155 MT_DMA_HDR_LEN; 156 wiphy->iface_combinations = mt76x02u_if_comb; 157 wiphy->n_iface_combinations = ARRAY_SIZE(mt76x02u_if_comb); 158 } else { 159 INIT_DELAYED_WORK(&dev->wdt_work, mt76x02_wdt_work); 160 161 mt76x02_dfs_init_detector(dev); 162 163 wiphy->reg_notifier = mt76x02_regd_notifier; 164 wiphy->iface_combinations = mt76x02_if_comb; 165 wiphy->n_iface_combinations = ARRAY_SIZE(mt76x02_if_comb); 166 167 /* init led callbacks */ 168 if (IS_ENABLED(CONFIG_MT76_LEDS)) { 169 dev->mphy.leds.cdev.brightness_set = 170 mt76x02_led_set_brightness; 171 dev->mphy.leds.cdev.blink_set = mt76x02_led_set_blink; 172 } 173 } 174 175 wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_VHT_IBSS); 176 177 hw->sta_data_size = sizeof(struct mt76x02_sta); 178 hw->vif_data_size = sizeof(struct mt76x02_vif); 179 180 ieee80211_hw_set(hw, SUPPORTS_HT_CCK_RATES); 181 ieee80211_hw_set(hw, HOST_BROADCAST_PS_BUFFERING); 182 ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR); 183 184 dev->mt76.global_wcid.idx = 255; 185 dev->mt76.global_wcid.hw_key_idx = -1; 186 dev->slottime = 9; 187 188 if (is_mt76x2(dev)) { 189 dev->mphy.sband_2g.sband.ht_cap.cap |= 190 IEEE80211_HT_CAP_LDPC_CODING; 191 dev->mphy.sband_5g.sband.ht_cap.cap |= 192 IEEE80211_HT_CAP_LDPC_CODING; 193 dev->mphy.chainmask = 0x202; 194 dev->mphy.antenna_mask = 3; 195 } else { 196 dev->mphy.chainmask = 0x101; 197 dev->mphy.antenna_mask = 1; 198 } 199 200 return 0; 201 } 202 EXPORT_SYMBOL_GPL(mt76x02_init_device); 203 204 void mt76x02_configure_filter(struct ieee80211_hw *hw, 205 unsigned int changed_flags, 206 unsigned int *total_flags, u64 multicast) 207 { 208 struct mt76x02_dev *dev = hw->priv; 209 u32 flags = 0; 210 211 #define MT76_FILTER(_flag, _hw) do { \ 212 flags |= *total_flags & FIF_##_flag; \ 213 dev->mt76.rxfilter &= ~(_hw); \ 214 dev->mt76.rxfilter |= !(flags & FIF_##_flag) * (_hw); \ 215 } while (0) 216 217 mutex_lock(&dev->mt76.mutex); 218 219 dev->mt76.rxfilter &= ~MT_RX_FILTR_CFG_OTHER_BSS; 220 221 MT76_FILTER(FCSFAIL, MT_RX_FILTR_CFG_CRC_ERR); 222 MT76_FILTER(PLCPFAIL, MT_RX_FILTR_CFG_PHY_ERR); 223 MT76_FILTER(CONTROL, MT_RX_FILTR_CFG_ACK | 224 MT_RX_FILTR_CFG_CTS | 225 MT_RX_FILTR_CFG_CFEND | 226 MT_RX_FILTR_CFG_CFACK | 227 MT_RX_FILTR_CFG_BA | 228 MT_RX_FILTR_CFG_CTRL_RSV); 229 MT76_FILTER(PSPOLL, MT_RX_FILTR_CFG_PSPOLL); 230 231 *total_flags = flags; 232 mt76_wr(dev, MT_RX_FILTR_CFG, dev->mt76.rxfilter); 233 234 mutex_unlock(&dev->mt76.mutex); 235 } 236 EXPORT_SYMBOL_GPL(mt76x02_configure_filter); 237 238 int mt76x02_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif, 239 struct ieee80211_sta *sta) 240 { 241 struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76); 242 struct mt76x02_sta *msta = (struct mt76x02_sta *)sta->drv_priv; 243 struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv; 244 int idx = 0; 245 246 memset(msta, 0, sizeof(*msta)); 247 248 idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT76x02_N_WCIDS); 249 if (idx < 0) 250 return -ENOSPC; 251 252 msta->vif = mvif; 253 msta->wcid.sta = 1; 254 msta->wcid.idx = idx; 255 msta->wcid.hw_key_idx = -1; 256 mt76x02_mac_wcid_setup(dev, idx, mvif->idx, sta->addr); 257 mt76x02_mac_wcid_set_drop(dev, idx, false); 258 ewma_pktlen_init(&msta->pktlen); 259 260 if (vif->type == NL80211_IFTYPE_AP) 261 set_bit(MT_WCID_FLAG_CHECK_PS, &msta->wcid.flags); 262 263 return 0; 264 } 265 EXPORT_SYMBOL_GPL(mt76x02_sta_add); 266 267 void mt76x02_sta_remove(struct mt76_dev *mdev, struct ieee80211_vif *vif, 268 struct ieee80211_sta *sta) 269 { 270 struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76); 271 struct mt76_wcid *wcid = (struct mt76_wcid *)sta->drv_priv; 272 int idx = wcid->idx; 273 274 mt76x02_mac_wcid_set_drop(dev, idx, true); 275 mt76x02_mac_wcid_setup(dev, idx, 0, NULL); 276 } 277 EXPORT_SYMBOL_GPL(mt76x02_sta_remove); 278 279 static void 280 mt76x02_vif_init(struct mt76x02_dev *dev, struct ieee80211_vif *vif, 281 unsigned int idx) 282 { 283 struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv; 284 struct mt76_txq *mtxq; 285 286 memset(mvif, 0, sizeof(*mvif)); 287 288 mvif->idx = idx; 289 mvif->group_wcid.idx = MT_VIF_WCID(idx); 290 mt76_wcid_init(&mvif->group_wcid, 0); 291 292 mtxq = (struct mt76_txq *)vif->txq->drv_priv; 293 rcu_assign_pointer(dev->mt76.wcid[MT_VIF_WCID(idx)], &mvif->group_wcid); 294 mtxq->wcid = MT_VIF_WCID(idx); 295 } 296 297 int 298 mt76x02_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) 299 { 300 struct mt76x02_dev *dev = hw->priv; 301 unsigned int idx = 0; 302 303 /* Allow to change address in HW if we create first interface. */ 304 if (!dev->mt76.vif_mask && 305 (((vif->addr[0] ^ dev->mphy.macaddr[0]) & ~GENMASK(4, 1)) || 306 memcmp(vif->addr + 1, dev->mphy.macaddr + 1, ETH_ALEN - 1))) 307 mt76x02_mac_setaddr(dev, vif->addr); 308 309 if (vif->addr[0] & BIT(1)) 310 idx = 1 + (((dev->mphy.macaddr[0] ^ vif->addr[0]) >> 2) & 7); 311 312 /* 313 * Client mode typically only has one configurable BSSID register, 314 * which is used for bssidx=0. This is linked to the MAC address. 315 * Since mac80211 allows changing interface types, and we cannot 316 * force the use of the primary MAC address for a station mode 317 * interface, we need some other way of configuring a per-interface 318 * remote BSSID. 319 * The hardware provides an AP-Client feature, where bssidx 0-7 are 320 * used for AP mode and bssidx 8-15 for client mode. 321 * We shift the station interface bss index by 8 to force the 322 * hardware to recognize the BSSID. 323 * The resulting bssidx mismatch for unicast frames is ignored by hw. 324 */ 325 if (vif->type == NL80211_IFTYPE_STATION) 326 idx += 8; 327 328 /* vif is already set or idx is 8 for AP/Mesh/... */ 329 if (dev->mt76.vif_mask & BIT_ULL(idx) || 330 (vif->type != NL80211_IFTYPE_STATION && idx > 7)) 331 return -EBUSY; 332 333 dev->mt76.vif_mask |= BIT_ULL(idx); 334 335 mt76x02_vif_init(dev, vif, idx); 336 return 0; 337 } 338 EXPORT_SYMBOL_GPL(mt76x02_add_interface); 339 340 void mt76x02_remove_interface(struct ieee80211_hw *hw, 341 struct ieee80211_vif *vif) 342 { 343 struct mt76x02_dev *dev = hw->priv; 344 struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv; 345 346 dev->mt76.vif_mask &= ~BIT_ULL(mvif->idx); 347 rcu_assign_pointer(dev->mt76.wcid[mvif->group_wcid.idx], NULL); 348 mt76_wcid_cleanup(&dev->mt76, &mvif->group_wcid); 349 } 350 EXPORT_SYMBOL_GPL(mt76x02_remove_interface); 351 352 int mt76x02_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 353 struct ieee80211_ampdu_params *params) 354 { 355 enum ieee80211_ampdu_mlme_action action = params->action; 356 struct ieee80211_sta *sta = params->sta; 357 struct mt76x02_dev *dev = hw->priv; 358 struct mt76x02_sta *msta = (struct mt76x02_sta *)sta->drv_priv; 359 struct ieee80211_txq *txq = sta->txq[params->tid]; 360 u16 tid = params->tid; 361 u16 ssn = params->ssn; 362 struct mt76_txq *mtxq; 363 int ret = 0; 364 365 if (!txq) 366 return -EINVAL; 367 368 mtxq = (struct mt76_txq *)txq->drv_priv; 369 370 mutex_lock(&dev->mt76.mutex); 371 switch (action) { 372 case IEEE80211_AMPDU_RX_START: 373 mt76_rx_aggr_start(&dev->mt76, &msta->wcid, tid, 374 ssn, params->buf_size); 375 mt76_set(dev, MT_WCID_ADDR(msta->wcid.idx) + 4, BIT(16 + tid)); 376 break; 377 case IEEE80211_AMPDU_RX_STOP: 378 mt76_rx_aggr_stop(&dev->mt76, &msta->wcid, tid); 379 mt76_clear(dev, MT_WCID_ADDR(msta->wcid.idx) + 4, 380 BIT(16 + tid)); 381 break; 382 case IEEE80211_AMPDU_TX_OPERATIONAL: 383 mtxq->aggr = true; 384 mtxq->send_bar = false; 385 ieee80211_send_bar(vif, sta->addr, tid, mtxq->agg_ssn); 386 break; 387 case IEEE80211_AMPDU_TX_STOP_FLUSH: 388 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 389 mtxq->aggr = false; 390 break; 391 case IEEE80211_AMPDU_TX_START: 392 mtxq->agg_ssn = IEEE80211_SN_TO_SEQ(ssn); 393 ret = IEEE80211_AMPDU_TX_START_IMMEDIATE; 394 break; 395 case IEEE80211_AMPDU_TX_STOP_CONT: 396 mtxq->aggr = false; 397 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 398 break; 399 } 400 mutex_unlock(&dev->mt76.mutex); 401 402 return ret; 403 } 404 EXPORT_SYMBOL_GPL(mt76x02_ampdu_action); 405 406 int mt76x02_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, 407 struct ieee80211_vif *vif, struct ieee80211_sta *sta, 408 struct ieee80211_key_conf *key) 409 { 410 struct mt76x02_dev *dev = hw->priv; 411 struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv; 412 struct mt76x02_sta *msta; 413 struct mt76_wcid *wcid; 414 int idx = key->keyidx; 415 int ret; 416 417 /* fall back to sw encryption for unsupported ciphers */ 418 switch (key->cipher) { 419 case WLAN_CIPHER_SUITE_WEP40: 420 case WLAN_CIPHER_SUITE_WEP104: 421 case WLAN_CIPHER_SUITE_TKIP: 422 case WLAN_CIPHER_SUITE_CCMP: 423 break; 424 default: 425 return -EOPNOTSUPP; 426 } 427 428 /* 429 * The hardware does not support per-STA RX GTK, fall back 430 * to software mode for these. 431 */ 432 if ((vif->type == NL80211_IFTYPE_ADHOC || 433 vif->type == NL80211_IFTYPE_MESH_POINT) && 434 (key->cipher == WLAN_CIPHER_SUITE_TKIP || 435 key->cipher == WLAN_CIPHER_SUITE_CCMP) && 436 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) 437 return -EOPNOTSUPP; 438 439 /* 440 * In USB AP mode, broadcast/multicast frames are setup in beacon 441 * data registers and sent via HW beacons engine, they require to 442 * be already encrypted. 443 */ 444 if (mt76_is_usb(&dev->mt76) && 445 vif->type == NL80211_IFTYPE_AP && 446 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) 447 return -EOPNOTSUPP; 448 449 /* MT76x0 GTK offloading does not work with more than one VIF */ 450 if (is_mt76x0(dev) && !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) 451 return -EOPNOTSUPP; 452 453 msta = sta ? (struct mt76x02_sta *)sta->drv_priv : NULL; 454 wcid = msta ? &msta->wcid : &mvif->group_wcid; 455 456 if (cmd != SET_KEY) { 457 if (idx == wcid->hw_key_idx) { 458 wcid->hw_key_idx = -1; 459 wcid->sw_iv = false; 460 } 461 462 return 0; 463 } 464 465 key->hw_key_idx = wcid->idx; 466 wcid->hw_key_idx = idx; 467 if (key->flags & IEEE80211_KEY_FLAG_RX_MGMT) { 468 key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX; 469 wcid->sw_iv = true; 470 } 471 mt76_wcid_key_setup(&dev->mt76, wcid, key); 472 473 if (!msta) { 474 if (key || wcid->hw_key_idx == idx) { 475 ret = mt76x02_mac_wcid_set_key(dev, wcid->idx, key); 476 if (ret) 477 return ret; 478 } 479 480 return mt76x02_mac_shared_key_setup(dev, mvif->idx, idx, key); 481 } 482 483 return mt76x02_mac_wcid_set_key(dev, msta->wcid.idx, key); 484 } 485 EXPORT_SYMBOL_GPL(mt76x02_set_key); 486 487 int mt76x02_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 488 unsigned int link_id, u16 queue, 489 const struct ieee80211_tx_queue_params *params) 490 { 491 struct mt76x02_dev *dev = hw->priv; 492 u8 cw_min = 5, cw_max = 10, qid; 493 u32 val; 494 495 qid = dev->mphy.q_tx[queue]->hw_idx; 496 497 if (params->cw_min) 498 cw_min = fls(params->cw_min); 499 if (params->cw_max) 500 cw_max = fls(params->cw_max); 501 502 val = FIELD_PREP(MT_EDCA_CFG_TXOP, params->txop) | 503 FIELD_PREP(MT_EDCA_CFG_AIFSN, params->aifs) | 504 FIELD_PREP(MT_EDCA_CFG_CWMIN, cw_min) | 505 FIELD_PREP(MT_EDCA_CFG_CWMAX, cw_max); 506 mt76_wr(dev, MT_EDCA_CFG_AC(qid), val); 507 508 val = mt76_rr(dev, MT_WMM_TXOP(qid)); 509 val &= ~(MT_WMM_TXOP_MASK << MT_WMM_TXOP_SHIFT(qid)); 510 val |= params->txop << MT_WMM_TXOP_SHIFT(qid); 511 mt76_wr(dev, MT_WMM_TXOP(qid), val); 512 513 val = mt76_rr(dev, MT_WMM_AIFSN); 514 val &= ~(MT_WMM_AIFSN_MASK << MT_WMM_AIFSN_SHIFT(qid)); 515 val |= params->aifs << MT_WMM_AIFSN_SHIFT(qid); 516 mt76_wr(dev, MT_WMM_AIFSN, val); 517 518 val = mt76_rr(dev, MT_WMM_CWMIN); 519 val &= ~(MT_WMM_CWMIN_MASK << MT_WMM_CWMIN_SHIFT(qid)); 520 val |= cw_min << MT_WMM_CWMIN_SHIFT(qid); 521 mt76_wr(dev, MT_WMM_CWMIN, val); 522 523 val = mt76_rr(dev, MT_WMM_CWMAX); 524 val &= ~(MT_WMM_CWMAX_MASK << MT_WMM_CWMAX_SHIFT(qid)); 525 val |= cw_max << MT_WMM_CWMAX_SHIFT(qid); 526 mt76_wr(dev, MT_WMM_CWMAX, val); 527 528 return 0; 529 } 530 EXPORT_SYMBOL_GPL(mt76x02_conf_tx); 531 532 void mt76x02_set_tx_ackto(struct mt76x02_dev *dev) 533 { 534 u8 ackto, sifs, slottime = dev->slottime; 535 536 /* As defined by IEEE 802.11-2007 17.3.8.6 */ 537 slottime += 3 * dev->coverage_class; 538 mt76_rmw_field(dev, MT_BKOFF_SLOT_CFG, 539 MT_BKOFF_SLOT_CFG_SLOTTIME, slottime); 540 541 sifs = mt76_get_field(dev, MT_XIFS_TIME_CFG, 542 MT_XIFS_TIME_CFG_OFDM_SIFS); 543 544 ackto = slottime + sifs; 545 mt76_rmw_field(dev, MT_TX_TIMEOUT_CFG, 546 MT_TX_TIMEOUT_CFG_ACKTO, ackto); 547 } 548 EXPORT_SYMBOL_GPL(mt76x02_set_tx_ackto); 549 550 void mt76x02_set_coverage_class(struct ieee80211_hw *hw, 551 s16 coverage_class) 552 { 553 struct mt76x02_dev *dev = hw->priv; 554 555 mutex_lock(&dev->mt76.mutex); 556 dev->coverage_class = max_t(s16, coverage_class, 0); 557 mt76x02_set_tx_ackto(dev); 558 mutex_unlock(&dev->mt76.mutex); 559 } 560 EXPORT_SYMBOL_GPL(mt76x02_set_coverage_class); 561 562 int mt76x02_set_rts_threshold(struct ieee80211_hw *hw, u32 val) 563 { 564 struct mt76x02_dev *dev = hw->priv; 565 566 if (val != ~0 && val > 0xffff) 567 return -EINVAL; 568 569 mutex_lock(&dev->mt76.mutex); 570 mt76x02_mac_set_rts_thresh(dev, val); 571 mutex_unlock(&dev->mt76.mutex); 572 573 return 0; 574 } 575 EXPORT_SYMBOL_GPL(mt76x02_set_rts_threshold); 576 577 void mt76x02_sta_rate_tbl_update(struct ieee80211_hw *hw, 578 struct ieee80211_vif *vif, 579 struct ieee80211_sta *sta) 580 { 581 struct mt76x02_dev *dev = hw->priv; 582 struct mt76x02_sta *msta = (struct mt76x02_sta *)sta->drv_priv; 583 struct ieee80211_sta_rates *rates = rcu_dereference(sta->rates); 584 struct ieee80211_tx_rate rate = {}; 585 586 if (!rates) 587 return; 588 589 rate.idx = rates->rate[0].idx; 590 rate.flags = rates->rate[0].flags; 591 mt76x02_mac_wcid_set_rate(dev, &msta->wcid, &rate); 592 } 593 EXPORT_SYMBOL_GPL(mt76x02_sta_rate_tbl_update); 594 595 void mt76x02_remove_hdr_pad(struct sk_buff *skb, int len) 596 { 597 int hdrlen; 598 599 if (!len) 600 return; 601 602 hdrlen = ieee80211_get_hdrlen_from_skb(skb); 603 memmove(skb->data + len, skb->data, hdrlen); 604 skb_pull(skb, len); 605 } 606 EXPORT_SYMBOL_GPL(mt76x02_remove_hdr_pad); 607 608 void mt76x02_sw_scan_complete(struct ieee80211_hw *hw, 609 struct ieee80211_vif *vif) 610 { 611 struct mt76x02_dev *dev = hw->priv; 612 613 clear_bit(MT76_SCANNING, &dev->mphy.state); 614 if (dev->cal.gain_init_done) { 615 /* Restore AGC gain and resume calibration after scanning. */ 616 dev->cal.low_gain = -1; 617 ieee80211_queue_delayed_work(hw, &dev->cal_work, 0); 618 } 619 } 620 EXPORT_SYMBOL_GPL(mt76x02_sw_scan_complete); 621 622 void mt76x02_sta_ps(struct mt76_dev *mdev, struct ieee80211_sta *sta, 623 bool ps) 624 { 625 struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76); 626 struct mt76x02_sta *msta = (struct mt76x02_sta *)sta->drv_priv; 627 int idx = msta->wcid.idx; 628 629 mt76_stop_tx_queues(&dev->mphy, sta, true); 630 if (mt76_is_mmio(mdev)) 631 mt76x02_mac_wcid_set_drop(dev, idx, ps); 632 } 633 EXPORT_SYMBOL_GPL(mt76x02_sta_ps); 634 635 void mt76x02_bss_info_changed(struct ieee80211_hw *hw, 636 struct ieee80211_vif *vif, 637 struct ieee80211_bss_conf *info, 638 u64 changed) 639 { 640 struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv; 641 struct mt76x02_dev *dev = hw->priv; 642 643 mutex_lock(&dev->mt76.mutex); 644 645 if (changed & BSS_CHANGED_BSSID) 646 mt76x02_mac_set_bssid(dev, mvif->idx, info->bssid); 647 648 if (changed & BSS_CHANGED_HT || changed & BSS_CHANGED_ERP_CTS_PROT) 649 mt76x02_mac_set_tx_protection(dev, info->use_cts_prot, 650 info->ht_operation_mode); 651 652 if (changed & BSS_CHANGED_BEACON_INT) { 653 mt76_rmw_field(dev, MT_BEACON_TIME_CFG, 654 MT_BEACON_TIME_CFG_INTVAL, 655 info->beacon_int << 4); 656 dev->mt76.beacon_int = info->beacon_int; 657 } 658 659 if (changed & BSS_CHANGED_BEACON_ENABLED) 660 mt76x02_mac_set_beacon_enable(dev, vif, info->enable_beacon); 661 662 if (changed & BSS_CHANGED_ERP_PREAMBLE) 663 mt76x02_mac_set_short_preamble(dev, info->use_short_preamble); 664 665 if (changed & BSS_CHANGED_ERP_SLOT) { 666 int slottime = info->use_short_slot ? 9 : 20; 667 668 dev->slottime = slottime; 669 mt76x02_set_tx_ackto(dev); 670 } 671 672 mutex_unlock(&dev->mt76.mutex); 673 } 674 EXPORT_SYMBOL_GPL(mt76x02_bss_info_changed); 675 676 void mt76x02_config_mac_addr_list(struct mt76x02_dev *dev) 677 { 678 struct ieee80211_hw *hw = mt76_hw(dev); 679 struct wiphy *wiphy = hw->wiphy; 680 int i; 681 682 for (i = 0; i < ARRAY_SIZE(dev->macaddr_list); i++) { 683 u8 *addr = dev->macaddr_list[i].addr; 684 685 memcpy(addr, dev->mphy.macaddr, ETH_ALEN); 686 687 if (!i) 688 continue; 689 690 addr[0] |= BIT(1); 691 addr[0] ^= ((i - 1) << 2); 692 } 693 wiphy->addresses = dev->macaddr_list; 694 wiphy->n_addresses = ARRAY_SIZE(dev->macaddr_list); 695 } 696 EXPORT_SYMBOL_GPL(mt76x02_config_mac_addr_list); 697 698 MODULE_DESCRIPTION("MediaTek MT76x02 helpers"); 699 MODULE_LICENSE("Dual BSD/GPL"); 700