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 int 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 return 0; 202 } 203 EXPORT_SYMBOL_GPL(mt76x02_init_device); 204 205 void mt76x02_configure_filter(struct ieee80211_hw *hw, 206 unsigned int changed_flags, 207 unsigned int *total_flags, u64 multicast) 208 { 209 struct mt76x02_dev *dev = hw->priv; 210 u32 flags = 0; 211 212 #define MT76_FILTER(_flag, _hw) do { \ 213 flags |= *total_flags & FIF_##_flag; \ 214 dev->mt76.rxfilter &= ~(_hw); \ 215 dev->mt76.rxfilter |= !(flags & FIF_##_flag) * (_hw); \ 216 } while (0) 217 218 mutex_lock(&dev->mt76.mutex); 219 220 dev->mt76.rxfilter &= ~MT_RX_FILTR_CFG_OTHER_BSS; 221 222 MT76_FILTER(FCSFAIL, MT_RX_FILTR_CFG_CRC_ERR); 223 MT76_FILTER(PLCPFAIL, MT_RX_FILTR_CFG_PHY_ERR); 224 MT76_FILTER(CONTROL, MT_RX_FILTR_CFG_ACK | 225 MT_RX_FILTR_CFG_CTS | 226 MT_RX_FILTR_CFG_CFEND | 227 MT_RX_FILTR_CFG_CFACK | 228 MT_RX_FILTR_CFG_BA | 229 MT_RX_FILTR_CFG_CTRL_RSV); 230 MT76_FILTER(PSPOLL, MT_RX_FILTR_CFG_PSPOLL); 231 232 *total_flags = flags; 233 mt76_wr(dev, MT_RX_FILTR_CFG, dev->mt76.rxfilter); 234 235 mutex_unlock(&dev->mt76.mutex); 236 } 237 EXPORT_SYMBOL_GPL(mt76x02_configure_filter); 238 239 int mt76x02_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif, 240 struct ieee80211_sta *sta) 241 { 242 struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76); 243 struct mt76x02_sta *msta = (struct mt76x02_sta *)sta->drv_priv; 244 struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv; 245 int idx = 0; 246 247 memset(msta, 0, sizeof(*msta)); 248 249 idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT76x02_N_WCIDS); 250 if (idx < 0) 251 return -ENOSPC; 252 253 msta->vif = mvif; 254 msta->wcid.sta = 1; 255 msta->wcid.idx = idx; 256 msta->wcid.hw_key_idx = -1; 257 mt76x02_mac_wcid_setup(dev, idx, mvif->idx, sta->addr); 258 mt76x02_mac_wcid_set_drop(dev, idx, false); 259 ewma_pktlen_init(&msta->pktlen); 260 261 if (vif->type == NL80211_IFTYPE_AP) 262 set_bit(MT_WCID_FLAG_CHECK_PS, &msta->wcid.flags); 263 264 return 0; 265 } 266 EXPORT_SYMBOL_GPL(mt76x02_sta_add); 267 268 void mt76x02_sta_remove(struct mt76_dev *mdev, struct ieee80211_vif *vif, 269 struct ieee80211_sta *sta) 270 { 271 struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76); 272 struct mt76_wcid *wcid = (struct mt76_wcid *)sta->drv_priv; 273 int idx = wcid->idx; 274 275 mt76x02_mac_wcid_set_drop(dev, idx, true); 276 mt76x02_mac_wcid_setup(dev, idx, 0, NULL); 277 } 278 EXPORT_SYMBOL_GPL(mt76x02_sta_remove); 279 280 static void 281 mt76x02_vif_init(struct mt76x02_dev *dev, struct ieee80211_vif *vif, 282 unsigned int idx) 283 { 284 struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv; 285 struct mt76_txq *mtxq; 286 287 memset(mvif, 0, sizeof(*mvif)); 288 289 mvif->idx = idx; 290 mvif->group_wcid.idx = MT_VIF_WCID(idx); 291 mvif->group_wcid.hw_key_idx = -1; 292 mt76_packet_id_init(&mvif->group_wcid); 293 294 mtxq = (struct mt76_txq *)vif->txq->drv_priv; 295 rcu_assign_pointer(dev->mt76.wcid[MT_VIF_WCID(idx)], &mvif->group_wcid); 296 mtxq->wcid = MT_VIF_WCID(idx); 297 } 298 299 int 300 mt76x02_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) 301 { 302 struct mt76x02_dev *dev = hw->priv; 303 unsigned int idx = 0; 304 305 /* Allow to change address in HW if we create first interface. */ 306 if (!dev->mt76.vif_mask && 307 (((vif->addr[0] ^ dev->mphy.macaddr[0]) & ~GENMASK(4, 1)) || 308 memcmp(vif->addr + 1, dev->mphy.macaddr + 1, ETH_ALEN - 1))) 309 mt76x02_mac_setaddr(dev, vif->addr); 310 311 if (vif->addr[0] & BIT(1)) 312 idx = 1 + (((dev->mphy.macaddr[0] ^ vif->addr[0]) >> 2) & 7); 313 314 /* 315 * Client mode typically only has one configurable BSSID register, 316 * which is used for bssidx=0. This is linked to the MAC address. 317 * Since mac80211 allows changing interface types, and we cannot 318 * force the use of the primary MAC address for a station mode 319 * interface, we need some other way of configuring a per-interface 320 * remote BSSID. 321 * The hardware provides an AP-Client feature, where bssidx 0-7 are 322 * used for AP mode and bssidx 8-15 for client mode. 323 * We shift the station interface bss index by 8 to force the 324 * hardware to recognize the BSSID. 325 * The resulting bssidx mismatch for unicast frames is ignored by hw. 326 */ 327 if (vif->type == NL80211_IFTYPE_STATION) 328 idx += 8; 329 330 /* vif is already set or idx is 8 for AP/Mesh/... */ 331 if (dev->mt76.vif_mask & BIT_ULL(idx) || 332 (vif->type != NL80211_IFTYPE_STATION && idx > 7)) 333 return -EBUSY; 334 335 dev->mt76.vif_mask |= BIT_ULL(idx); 336 337 mt76x02_vif_init(dev, vif, idx); 338 return 0; 339 } 340 EXPORT_SYMBOL_GPL(mt76x02_add_interface); 341 342 void mt76x02_remove_interface(struct ieee80211_hw *hw, 343 struct ieee80211_vif *vif) 344 { 345 struct mt76x02_dev *dev = hw->priv; 346 struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv; 347 348 dev->mt76.vif_mask &= ~BIT_ULL(mvif->idx); 349 rcu_assign_pointer(dev->mt76.wcid[mvif->group_wcid.idx], NULL); 350 mt76_packet_id_flush(&dev->mt76, &mvif->group_wcid); 351 } 352 EXPORT_SYMBOL_GPL(mt76x02_remove_interface); 353 354 int mt76x02_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 355 struct ieee80211_ampdu_params *params) 356 { 357 enum ieee80211_ampdu_mlme_action action = params->action; 358 struct ieee80211_sta *sta = params->sta; 359 struct mt76x02_dev *dev = hw->priv; 360 struct mt76x02_sta *msta = (struct mt76x02_sta *)sta->drv_priv; 361 struct ieee80211_txq *txq = sta->txq[params->tid]; 362 u16 tid = params->tid; 363 u16 ssn = params->ssn; 364 struct mt76_txq *mtxq; 365 int ret = 0; 366 367 if (!txq) 368 return -EINVAL; 369 370 mtxq = (struct mt76_txq *)txq->drv_priv; 371 372 mutex_lock(&dev->mt76.mutex); 373 switch (action) { 374 case IEEE80211_AMPDU_RX_START: 375 mt76_rx_aggr_start(&dev->mt76, &msta->wcid, tid, 376 ssn, params->buf_size); 377 mt76_set(dev, MT_WCID_ADDR(msta->wcid.idx) + 4, BIT(16 + tid)); 378 break; 379 case IEEE80211_AMPDU_RX_STOP: 380 mt76_rx_aggr_stop(&dev->mt76, &msta->wcid, tid); 381 mt76_clear(dev, MT_WCID_ADDR(msta->wcid.idx) + 4, 382 BIT(16 + tid)); 383 break; 384 case IEEE80211_AMPDU_TX_OPERATIONAL: 385 mtxq->aggr = true; 386 mtxq->send_bar = false; 387 ieee80211_send_bar(vif, sta->addr, tid, mtxq->agg_ssn); 388 break; 389 case IEEE80211_AMPDU_TX_STOP_FLUSH: 390 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 391 mtxq->aggr = false; 392 break; 393 case IEEE80211_AMPDU_TX_START: 394 mtxq->agg_ssn = IEEE80211_SN_TO_SEQ(ssn); 395 ret = IEEE80211_AMPDU_TX_START_IMMEDIATE; 396 break; 397 case IEEE80211_AMPDU_TX_STOP_CONT: 398 mtxq->aggr = false; 399 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 400 break; 401 } 402 mutex_unlock(&dev->mt76.mutex); 403 404 return ret; 405 } 406 EXPORT_SYMBOL_GPL(mt76x02_ampdu_action); 407 408 int mt76x02_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, 409 struct ieee80211_vif *vif, struct ieee80211_sta *sta, 410 struct ieee80211_key_conf *key) 411 { 412 struct mt76x02_dev *dev = hw->priv; 413 struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv; 414 struct mt76x02_sta *msta; 415 struct mt76_wcid *wcid; 416 int idx = key->keyidx; 417 int ret; 418 419 /* fall back to sw encryption for unsupported ciphers */ 420 switch (key->cipher) { 421 case WLAN_CIPHER_SUITE_WEP40: 422 case WLAN_CIPHER_SUITE_WEP104: 423 case WLAN_CIPHER_SUITE_TKIP: 424 case WLAN_CIPHER_SUITE_CCMP: 425 break; 426 default: 427 return -EOPNOTSUPP; 428 } 429 430 /* 431 * The hardware does not support per-STA RX GTK, fall back 432 * to software mode for these. 433 */ 434 if ((vif->type == NL80211_IFTYPE_ADHOC || 435 vif->type == NL80211_IFTYPE_MESH_POINT) && 436 (key->cipher == WLAN_CIPHER_SUITE_TKIP || 437 key->cipher == WLAN_CIPHER_SUITE_CCMP) && 438 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) 439 return -EOPNOTSUPP; 440 441 /* 442 * In USB AP mode, broadcast/multicast frames are setup in beacon 443 * data registers and sent via HW beacons engine, they require to 444 * be already encrypted. 445 */ 446 if (mt76_is_usb(&dev->mt76) && 447 vif->type == NL80211_IFTYPE_AP && 448 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) 449 return -EOPNOTSUPP; 450 451 /* MT76x0 GTK offloading does not work with more than one VIF */ 452 if (is_mt76x0(dev) && !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) 453 return -EOPNOTSUPP; 454 455 msta = sta ? (struct mt76x02_sta *)sta->drv_priv : NULL; 456 wcid = msta ? &msta->wcid : &mvif->group_wcid; 457 458 if (cmd == SET_KEY) { 459 key->hw_key_idx = wcid->idx; 460 wcid->hw_key_idx = idx; 461 if (key->flags & IEEE80211_KEY_FLAG_RX_MGMT) { 462 key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX; 463 wcid->sw_iv = true; 464 } 465 } else { 466 if (idx == wcid->hw_key_idx) { 467 wcid->hw_key_idx = -1; 468 wcid->sw_iv = false; 469 } 470 471 key = NULL; 472 } 473 mt76_wcid_key_setup(&dev->mt76, wcid, key); 474 475 if (!msta) { 476 if (key || wcid->hw_key_idx == idx) { 477 ret = mt76x02_mac_wcid_set_key(dev, wcid->idx, key); 478 if (ret) 479 return ret; 480 } 481 482 return mt76x02_mac_shared_key_setup(dev, mvif->idx, idx, key); 483 } 484 485 return mt76x02_mac_wcid_set_key(dev, msta->wcid.idx, key); 486 } 487 EXPORT_SYMBOL_GPL(mt76x02_set_key); 488 489 int mt76x02_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 490 u16 queue, const struct ieee80211_tx_queue_params *params) 491 { 492 struct mt76x02_dev *dev = hw->priv; 493 u8 cw_min = 5, cw_max = 10, qid; 494 u32 val; 495 496 qid = dev->mphy.q_tx[queue]->hw_idx; 497 498 if (params->cw_min) 499 cw_min = fls(params->cw_min); 500 if (params->cw_max) 501 cw_max = fls(params->cw_max); 502 503 val = FIELD_PREP(MT_EDCA_CFG_TXOP, params->txop) | 504 FIELD_PREP(MT_EDCA_CFG_AIFSN, params->aifs) | 505 FIELD_PREP(MT_EDCA_CFG_CWMIN, cw_min) | 506 FIELD_PREP(MT_EDCA_CFG_CWMAX, cw_max); 507 mt76_wr(dev, MT_EDCA_CFG_AC(qid), val); 508 509 val = mt76_rr(dev, MT_WMM_TXOP(qid)); 510 val &= ~(MT_WMM_TXOP_MASK << MT_WMM_TXOP_SHIFT(qid)); 511 val |= params->txop << MT_WMM_TXOP_SHIFT(qid); 512 mt76_wr(dev, MT_WMM_TXOP(qid), val); 513 514 val = mt76_rr(dev, MT_WMM_AIFSN); 515 val &= ~(MT_WMM_AIFSN_MASK << MT_WMM_AIFSN_SHIFT(qid)); 516 val |= params->aifs << MT_WMM_AIFSN_SHIFT(qid); 517 mt76_wr(dev, MT_WMM_AIFSN, val); 518 519 val = mt76_rr(dev, MT_WMM_CWMIN); 520 val &= ~(MT_WMM_CWMIN_MASK << MT_WMM_CWMIN_SHIFT(qid)); 521 val |= cw_min << MT_WMM_CWMIN_SHIFT(qid); 522 mt76_wr(dev, MT_WMM_CWMIN, val); 523 524 val = mt76_rr(dev, MT_WMM_CWMAX); 525 val &= ~(MT_WMM_CWMAX_MASK << MT_WMM_CWMAX_SHIFT(qid)); 526 val |= cw_max << MT_WMM_CWMAX_SHIFT(qid); 527 mt76_wr(dev, MT_WMM_CWMAX, val); 528 529 return 0; 530 } 531 EXPORT_SYMBOL_GPL(mt76x02_conf_tx); 532 533 void mt76x02_set_tx_ackto(struct mt76x02_dev *dev) 534 { 535 u8 ackto, sifs, slottime = dev->slottime; 536 537 /* As defined by IEEE 802.11-2007 17.3.8.6 */ 538 slottime += 3 * dev->coverage_class; 539 mt76_rmw_field(dev, MT_BKOFF_SLOT_CFG, 540 MT_BKOFF_SLOT_CFG_SLOTTIME, slottime); 541 542 sifs = mt76_get_field(dev, MT_XIFS_TIME_CFG, 543 MT_XIFS_TIME_CFG_OFDM_SIFS); 544 545 ackto = slottime + sifs; 546 mt76_rmw_field(dev, MT_TX_TIMEOUT_CFG, 547 MT_TX_TIMEOUT_CFG_ACKTO, ackto); 548 } 549 EXPORT_SYMBOL_GPL(mt76x02_set_tx_ackto); 550 551 void mt76x02_set_coverage_class(struct ieee80211_hw *hw, 552 s16 coverage_class) 553 { 554 struct mt76x02_dev *dev = hw->priv; 555 556 mutex_lock(&dev->mt76.mutex); 557 dev->coverage_class = max_t(s16, coverage_class, 0); 558 mt76x02_set_tx_ackto(dev); 559 mutex_unlock(&dev->mt76.mutex); 560 } 561 EXPORT_SYMBOL_GPL(mt76x02_set_coverage_class); 562 563 int mt76x02_set_rts_threshold(struct ieee80211_hw *hw, u32 val) 564 { 565 struct mt76x02_dev *dev = hw->priv; 566 567 if (val != ~0 && val > 0xffff) 568 return -EINVAL; 569 570 mutex_lock(&dev->mt76.mutex); 571 mt76x02_mac_set_rts_thresh(dev, val); 572 mutex_unlock(&dev->mt76.mutex); 573 574 return 0; 575 } 576 EXPORT_SYMBOL_GPL(mt76x02_set_rts_threshold); 577 578 void mt76x02_sta_rate_tbl_update(struct ieee80211_hw *hw, 579 struct ieee80211_vif *vif, 580 struct ieee80211_sta *sta) 581 { 582 struct mt76x02_dev *dev = hw->priv; 583 struct mt76x02_sta *msta = (struct mt76x02_sta *)sta->drv_priv; 584 struct ieee80211_sta_rates *rates = rcu_dereference(sta->rates); 585 struct ieee80211_tx_rate rate = {}; 586 587 if (!rates) 588 return; 589 590 rate.idx = rates->rate[0].idx; 591 rate.flags = rates->rate[0].flags; 592 mt76x02_mac_wcid_set_rate(dev, &msta->wcid, &rate); 593 } 594 EXPORT_SYMBOL_GPL(mt76x02_sta_rate_tbl_update); 595 596 void mt76x02_remove_hdr_pad(struct sk_buff *skb, int len) 597 { 598 int hdrlen; 599 600 if (!len) 601 return; 602 603 hdrlen = ieee80211_get_hdrlen_from_skb(skb); 604 memmove(skb->data + len, skb->data, hdrlen); 605 skb_pull(skb, len); 606 } 607 EXPORT_SYMBOL_GPL(mt76x02_remove_hdr_pad); 608 609 void mt76x02_sw_scan_complete(struct ieee80211_hw *hw, 610 struct ieee80211_vif *vif) 611 { 612 struct mt76x02_dev *dev = hw->priv; 613 614 clear_bit(MT76_SCANNING, &dev->mphy.state); 615 if (dev->cal.gain_init_done) { 616 /* Restore AGC gain and resume calibration after scanning. */ 617 dev->cal.low_gain = -1; 618 ieee80211_queue_delayed_work(hw, &dev->cal_work, 0); 619 } 620 } 621 EXPORT_SYMBOL_GPL(mt76x02_sw_scan_complete); 622 623 void mt76x02_sta_ps(struct mt76_dev *mdev, struct ieee80211_sta *sta, 624 bool ps) 625 { 626 struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76); 627 struct mt76x02_sta *msta = (struct mt76x02_sta *)sta->drv_priv; 628 int idx = msta->wcid.idx; 629 630 mt76_stop_tx_queues(&dev->mphy, sta, true); 631 if (mt76_is_mmio(mdev)) 632 mt76x02_mac_wcid_set_drop(dev, idx, ps); 633 } 634 EXPORT_SYMBOL_GPL(mt76x02_sta_ps); 635 636 void mt76x02_bss_info_changed(struct ieee80211_hw *hw, 637 struct ieee80211_vif *vif, 638 struct ieee80211_bss_conf *info, 639 u32 changed) 640 { 641 struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv; 642 struct mt76x02_dev *dev = hw->priv; 643 644 mutex_lock(&dev->mt76.mutex); 645 646 if (changed & BSS_CHANGED_BSSID) 647 mt76x02_mac_set_bssid(dev, mvif->idx, info->bssid); 648 649 if (changed & BSS_CHANGED_HT || changed & BSS_CHANGED_ERP_CTS_PROT) 650 mt76x02_mac_set_tx_protection(dev, info->use_cts_prot, 651 info->ht_operation_mode); 652 653 if (changed & BSS_CHANGED_BEACON_INT) { 654 mt76_rmw_field(dev, MT_BEACON_TIME_CFG, 655 MT_BEACON_TIME_CFG_INTVAL, 656 info->beacon_int << 4); 657 dev->mt76.beacon_int = info->beacon_int; 658 } 659 660 if (changed & BSS_CHANGED_BEACON_ENABLED) 661 mt76x02_mac_set_beacon_enable(dev, vif, info->enable_beacon); 662 663 if (changed & BSS_CHANGED_ERP_PREAMBLE) 664 mt76x02_mac_set_short_preamble(dev, info->use_short_preamble); 665 666 if (changed & BSS_CHANGED_ERP_SLOT) { 667 int slottime = info->use_short_slot ? 9 : 20; 668 669 dev->slottime = slottime; 670 mt76x02_set_tx_ackto(dev); 671 } 672 673 mutex_unlock(&dev->mt76.mutex); 674 } 675 EXPORT_SYMBOL_GPL(mt76x02_bss_info_changed); 676 677 void mt76x02_config_mac_addr_list(struct mt76x02_dev *dev) 678 { 679 struct ieee80211_hw *hw = mt76_hw(dev); 680 struct wiphy *wiphy = hw->wiphy; 681 int i; 682 683 for (i = 0; i < ARRAY_SIZE(dev->macaddr_list); i++) { 684 u8 *addr = dev->macaddr_list[i].addr; 685 686 memcpy(addr, dev->mphy.macaddr, ETH_ALEN); 687 688 if (!i) 689 continue; 690 691 addr[0] |= BIT(1); 692 addr[0] ^= ((i - 1) << 2); 693 } 694 wiphy->addresses = dev->macaddr_list; 695 wiphy->n_addresses = ARRAY_SIZE(dev->macaddr_list); 696 } 697 EXPORT_SYMBOL_GPL(mt76x02_config_mac_addr_list); 698 699 MODULE_LICENSE("Dual BSD/GPL"); 700