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->mt76.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); 189 190 dev->mt76.global_wcid.idx = 255; 191 dev->mt76.global_wcid.hw_key_idx = -1; 192 dev->slottime = 9; 193 194 if (is_mt76x2(dev)) { 195 dev->mphy.sband_2g.sband.ht_cap.cap |= 196 IEEE80211_HT_CAP_LDPC_CODING; 197 dev->mphy.sband_5g.sband.ht_cap.cap |= 198 IEEE80211_HT_CAP_LDPC_CODING; 199 dev->chainmask = 0x202; 200 dev->mphy.antenna_mask = 3; 201 } else { 202 dev->chainmask = 0x101; 203 dev->mphy.antenna_mask = 1; 204 } 205 } 206 EXPORT_SYMBOL_GPL(mt76x02_init_device); 207 208 void mt76x02_configure_filter(struct ieee80211_hw *hw, 209 unsigned int changed_flags, 210 unsigned int *total_flags, u64 multicast) 211 { 212 struct mt76x02_dev *dev = hw->priv; 213 u32 flags = 0; 214 215 #define MT76_FILTER(_flag, _hw) do { \ 216 flags |= *total_flags & FIF_##_flag; \ 217 dev->mt76.rxfilter &= ~(_hw); \ 218 dev->mt76.rxfilter |= !(flags & FIF_##_flag) * (_hw); \ 219 } while (0) 220 221 mutex_lock(&dev->mt76.mutex); 222 223 dev->mt76.rxfilter &= ~MT_RX_FILTR_CFG_OTHER_BSS; 224 225 MT76_FILTER(FCSFAIL, MT_RX_FILTR_CFG_CRC_ERR); 226 MT76_FILTER(PLCPFAIL, MT_RX_FILTR_CFG_PHY_ERR); 227 MT76_FILTER(CONTROL, MT_RX_FILTR_CFG_ACK | 228 MT_RX_FILTR_CFG_CTS | 229 MT_RX_FILTR_CFG_CFEND | 230 MT_RX_FILTR_CFG_CFACK | 231 MT_RX_FILTR_CFG_BA | 232 MT_RX_FILTR_CFG_CTRL_RSV); 233 MT76_FILTER(PSPOLL, MT_RX_FILTR_CFG_PSPOLL); 234 235 *total_flags = flags; 236 mt76_wr(dev, MT_RX_FILTR_CFG, dev->mt76.rxfilter); 237 238 mutex_unlock(&dev->mt76.mutex); 239 } 240 EXPORT_SYMBOL_GPL(mt76x02_configure_filter); 241 242 int mt76x02_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif, 243 struct ieee80211_sta *sta) 244 { 245 struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76); 246 struct mt76x02_sta *msta = (struct mt76x02_sta *)sta->drv_priv; 247 struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv; 248 int idx = 0; 249 250 memset(msta, 0, sizeof(*msta)); 251 252 idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT76x02_N_WCIDS); 253 if (idx < 0) 254 return -ENOSPC; 255 256 msta->vif = mvif; 257 msta->wcid.sta = 1; 258 msta->wcid.idx = idx; 259 msta->wcid.hw_key_idx = -1; 260 mt76x02_mac_wcid_setup(dev, idx, mvif->idx, sta->addr); 261 mt76x02_mac_wcid_set_drop(dev, idx, false); 262 ewma_pktlen_init(&msta->pktlen); 263 264 if (vif->type == NL80211_IFTYPE_AP) 265 set_bit(MT_WCID_FLAG_CHECK_PS, &msta->wcid.flags); 266 267 return 0; 268 } 269 EXPORT_SYMBOL_GPL(mt76x02_sta_add); 270 271 void mt76x02_sta_remove(struct mt76_dev *mdev, struct ieee80211_vif *vif, 272 struct ieee80211_sta *sta) 273 { 274 struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76); 275 struct mt76_wcid *wcid = (struct mt76_wcid *)sta->drv_priv; 276 int idx = wcid->idx; 277 278 mt76x02_mac_wcid_set_drop(dev, idx, true); 279 mt76x02_mac_wcid_setup(dev, idx, 0, NULL); 280 } 281 EXPORT_SYMBOL_GPL(mt76x02_sta_remove); 282 283 static void 284 mt76x02_vif_init(struct mt76x02_dev *dev, struct ieee80211_vif *vif, 285 unsigned int idx) 286 { 287 struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv; 288 struct mt76_txq *mtxq; 289 290 memset(mvif, 0, sizeof(*mvif)); 291 292 mvif->idx = idx; 293 mvif->group_wcid.idx = MT_VIF_WCID(idx); 294 mvif->group_wcid.hw_key_idx = -1; 295 mtxq = (struct mt76_txq *)vif->txq->drv_priv; 296 mtxq->wcid = &mvif->group_wcid; 297 298 mt76_txq_init(&dev->mt76, vif->txq); 299 } 300 301 int 302 mt76x02_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) 303 { 304 struct mt76x02_dev *dev = hw->priv; 305 unsigned int idx = 0; 306 307 /* Allow to change address in HW if we create first interface. */ 308 if (!dev->vif_mask && 309 (((vif->addr[0] ^ dev->mt76.macaddr[0]) & ~GENMASK(4, 1)) || 310 memcmp(vif->addr + 1, dev->mt76.macaddr + 1, ETH_ALEN - 1))) 311 mt76x02_mac_setaddr(dev, vif->addr); 312 313 if (vif->addr[0] & BIT(1)) 314 idx = 1 + (((dev->mt76.macaddr[0] ^ vif->addr[0]) >> 2) & 7); 315 316 /* 317 * Client mode typically only has one configurable BSSID register, 318 * which is used for bssidx=0. This is linked to the MAC address. 319 * Since mac80211 allows changing interface types, and we cannot 320 * force the use of the primary MAC address for a station mode 321 * interface, we need some other way of configuring a per-interface 322 * remote BSSID. 323 * The hardware provides an AP-Client feature, where bssidx 0-7 are 324 * used for AP mode and bssidx 8-15 for client mode. 325 * We shift the station interface bss index by 8 to force the 326 * hardware to recognize the BSSID. 327 * The resulting bssidx mismatch for unicast frames is ignored by hw. 328 */ 329 if (vif->type == NL80211_IFTYPE_STATION) 330 idx += 8; 331 332 /* vif is already set or idx is 8 for AP/Mesh/... */ 333 if (dev->vif_mask & BIT(idx) || 334 (vif->type != NL80211_IFTYPE_STATION && idx > 7)) 335 return -EBUSY; 336 337 dev->vif_mask |= BIT(idx); 338 339 mt76x02_vif_init(dev, vif, idx); 340 return 0; 341 } 342 EXPORT_SYMBOL_GPL(mt76x02_add_interface); 343 344 void mt76x02_remove_interface(struct ieee80211_hw *hw, 345 struct ieee80211_vif *vif) 346 { 347 struct mt76x02_dev *dev = hw->priv; 348 struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv; 349 350 mt76_txq_remove(&dev->mt76, vif->txq); 351 dev->vif_mask &= ~BIT(mvif->idx); 352 } 353 EXPORT_SYMBOL_GPL(mt76x02_remove_interface); 354 355 int mt76x02_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 356 struct ieee80211_ampdu_params *params) 357 { 358 enum ieee80211_ampdu_mlme_action action = params->action; 359 struct ieee80211_sta *sta = params->sta; 360 struct mt76x02_dev *dev = hw->priv; 361 struct mt76x02_sta *msta = (struct mt76x02_sta *)sta->drv_priv; 362 struct ieee80211_txq *txq = sta->txq[params->tid]; 363 u16 tid = params->tid; 364 u16 ssn = params->ssn; 365 struct mt76_txq *mtxq; 366 int ret = 0; 367 368 if (!txq) 369 return -EINVAL; 370 371 mtxq = (struct mt76_txq *)txq->drv_priv; 372 373 mutex_lock(&dev->mt76.mutex); 374 switch (action) { 375 case IEEE80211_AMPDU_RX_START: 376 mt76_rx_aggr_start(&dev->mt76, &msta->wcid, tid, 377 ssn, params->buf_size); 378 mt76_set(dev, MT_WCID_ADDR(msta->wcid.idx) + 4, BIT(16 + tid)); 379 break; 380 case IEEE80211_AMPDU_RX_STOP: 381 mt76_rx_aggr_stop(&dev->mt76, &msta->wcid, tid); 382 mt76_clear(dev, MT_WCID_ADDR(msta->wcid.idx) + 4, 383 BIT(16 + tid)); 384 break; 385 case IEEE80211_AMPDU_TX_OPERATIONAL: 386 mtxq->aggr = true; 387 mtxq->send_bar = false; 388 ieee80211_send_bar(vif, sta->addr, tid, mtxq->agg_ssn); 389 break; 390 case IEEE80211_AMPDU_TX_STOP_FLUSH: 391 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 392 mtxq->aggr = false; 393 break; 394 case IEEE80211_AMPDU_TX_START: 395 mtxq->agg_ssn = IEEE80211_SN_TO_SEQ(ssn); 396 ret = IEEE80211_AMPDU_TX_START_IMMEDIATE; 397 break; 398 case IEEE80211_AMPDU_TX_STOP_CONT: 399 mtxq->aggr = false; 400 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 401 break; 402 } 403 mutex_unlock(&dev->mt76.mutex); 404 405 return ret; 406 } 407 EXPORT_SYMBOL_GPL(mt76x02_ampdu_action); 408 409 int mt76x02_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, 410 struct ieee80211_vif *vif, struct ieee80211_sta *sta, 411 struct ieee80211_key_conf *key) 412 { 413 struct mt76x02_dev *dev = hw->priv; 414 struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv; 415 struct mt76x02_sta *msta; 416 struct mt76_wcid *wcid; 417 int idx = key->keyidx; 418 int ret; 419 420 /* fall back to sw encryption for unsupported ciphers */ 421 switch (key->cipher) { 422 case WLAN_CIPHER_SUITE_WEP40: 423 case WLAN_CIPHER_SUITE_WEP104: 424 case WLAN_CIPHER_SUITE_TKIP: 425 case WLAN_CIPHER_SUITE_CCMP: 426 break; 427 default: 428 return -EOPNOTSUPP; 429 } 430 431 /* 432 * The hardware does not support per-STA RX GTK, fall back 433 * to software mode for these. 434 */ 435 if ((vif->type == NL80211_IFTYPE_ADHOC || 436 vif->type == NL80211_IFTYPE_MESH_POINT) && 437 (key->cipher == WLAN_CIPHER_SUITE_TKIP || 438 key->cipher == WLAN_CIPHER_SUITE_CCMP) && 439 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) 440 return -EOPNOTSUPP; 441 442 /* 443 * In USB AP mode, broadcast/multicast frames are setup in beacon 444 * data registers and sent via HW beacons engine, they require to 445 * be already encrypted. 446 */ 447 if (mt76_is_usb(&dev->mt76) && 448 vif->type == NL80211_IFTYPE_AP && 449 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) 450 return -EOPNOTSUPP; 451 452 msta = sta ? (struct mt76x02_sta *)sta->drv_priv : NULL; 453 wcid = msta ? &msta->wcid : &mvif->group_wcid; 454 455 if (cmd == SET_KEY) { 456 key->hw_key_idx = wcid->idx; 457 wcid->hw_key_idx = idx; 458 if (key->flags & IEEE80211_KEY_FLAG_RX_MGMT) { 459 key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX; 460 wcid->sw_iv = true; 461 } 462 } else { 463 if (idx == wcid->hw_key_idx) { 464 wcid->hw_key_idx = -1; 465 wcid->sw_iv = false; 466 } 467 468 key = NULL; 469 } 470 mt76_wcid_key_setup(&dev->mt76, wcid, key); 471 472 if (!msta) { 473 if (key || wcid->hw_key_idx == idx) { 474 ret = mt76x02_mac_wcid_set_key(dev, wcid->idx, key); 475 if (ret) 476 return ret; 477 } 478 479 return mt76x02_mac_shared_key_setup(dev, mvif->idx, idx, key); 480 } 481 482 return mt76x02_mac_wcid_set_key(dev, msta->wcid.idx, key); 483 } 484 EXPORT_SYMBOL_GPL(mt76x02_set_key); 485 486 int mt76x02_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 487 u16 queue, const struct ieee80211_tx_queue_params *params) 488 { 489 struct mt76x02_dev *dev = hw->priv; 490 u8 cw_min = 5, cw_max = 10, qid; 491 u32 val; 492 493 qid = dev->mt76.q_tx[queue].q->hw_idx; 494 495 if (params->cw_min) 496 cw_min = fls(params->cw_min); 497 if (params->cw_max) 498 cw_max = fls(params->cw_max); 499 500 val = FIELD_PREP(MT_EDCA_CFG_TXOP, params->txop) | 501 FIELD_PREP(MT_EDCA_CFG_AIFSN, params->aifs) | 502 FIELD_PREP(MT_EDCA_CFG_CWMIN, cw_min) | 503 FIELD_PREP(MT_EDCA_CFG_CWMAX, cw_max); 504 mt76_wr(dev, MT_EDCA_CFG_AC(qid), val); 505 506 val = mt76_rr(dev, MT_WMM_TXOP(qid)); 507 val &= ~(MT_WMM_TXOP_MASK << MT_WMM_TXOP_SHIFT(qid)); 508 val |= params->txop << MT_WMM_TXOP_SHIFT(qid); 509 mt76_wr(dev, MT_WMM_TXOP(qid), val); 510 511 val = mt76_rr(dev, MT_WMM_AIFSN); 512 val &= ~(MT_WMM_AIFSN_MASK << MT_WMM_AIFSN_SHIFT(qid)); 513 val |= params->aifs << MT_WMM_AIFSN_SHIFT(qid); 514 mt76_wr(dev, MT_WMM_AIFSN, val); 515 516 val = mt76_rr(dev, MT_WMM_CWMIN); 517 val &= ~(MT_WMM_CWMIN_MASK << MT_WMM_CWMIN_SHIFT(qid)); 518 val |= cw_min << MT_WMM_CWMIN_SHIFT(qid); 519 mt76_wr(dev, MT_WMM_CWMIN, val); 520 521 val = mt76_rr(dev, MT_WMM_CWMAX); 522 val &= ~(MT_WMM_CWMAX_MASK << MT_WMM_CWMAX_SHIFT(qid)); 523 val |= cw_max << MT_WMM_CWMAX_SHIFT(qid); 524 mt76_wr(dev, MT_WMM_CWMAX, val); 525 526 return 0; 527 } 528 EXPORT_SYMBOL_GPL(mt76x02_conf_tx); 529 530 void mt76x02_set_tx_ackto(struct mt76x02_dev *dev) 531 { 532 u8 ackto, sifs, slottime = dev->slottime; 533 534 /* As defined by IEEE 802.11-2007 17.3.8.6 */ 535 slottime += 3 * dev->coverage_class; 536 mt76_rmw_field(dev, MT_BKOFF_SLOT_CFG, 537 MT_BKOFF_SLOT_CFG_SLOTTIME, slottime); 538 539 sifs = mt76_get_field(dev, MT_XIFS_TIME_CFG, 540 MT_XIFS_TIME_CFG_OFDM_SIFS); 541 542 ackto = slottime + sifs; 543 mt76_rmw_field(dev, MT_TX_TIMEOUT_CFG, 544 MT_TX_TIMEOUT_CFG_ACKTO, ackto); 545 } 546 EXPORT_SYMBOL_GPL(mt76x02_set_tx_ackto); 547 548 void mt76x02_set_coverage_class(struct ieee80211_hw *hw, 549 s16 coverage_class) 550 { 551 struct mt76x02_dev *dev = hw->priv; 552 553 mutex_lock(&dev->mt76.mutex); 554 dev->coverage_class = max_t(s16, coverage_class, 0); 555 mt76x02_set_tx_ackto(dev); 556 mutex_unlock(&dev->mt76.mutex); 557 } 558 EXPORT_SYMBOL_GPL(mt76x02_set_coverage_class); 559 560 int mt76x02_set_rts_threshold(struct ieee80211_hw *hw, u32 val) 561 { 562 struct mt76x02_dev *dev = hw->priv; 563 564 if (val != ~0 && val > 0xffff) 565 return -EINVAL; 566 567 mutex_lock(&dev->mt76.mutex); 568 mt76x02_mac_set_rts_thresh(dev, val); 569 mutex_unlock(&dev->mt76.mutex); 570 571 return 0; 572 } 573 EXPORT_SYMBOL_GPL(mt76x02_set_rts_threshold); 574 575 void mt76x02_sta_rate_tbl_update(struct ieee80211_hw *hw, 576 struct ieee80211_vif *vif, 577 struct ieee80211_sta *sta) 578 { 579 struct mt76x02_dev *dev = hw->priv; 580 struct mt76x02_sta *msta = (struct mt76x02_sta *)sta->drv_priv; 581 struct ieee80211_sta_rates *rates = rcu_dereference(sta->rates); 582 struct ieee80211_tx_rate rate = {}; 583 584 if (!rates) 585 return; 586 587 rate.idx = rates->rate[0].idx; 588 rate.flags = rates->rate[0].flags; 589 mt76x02_mac_wcid_set_rate(dev, &msta->wcid, &rate); 590 } 591 EXPORT_SYMBOL_GPL(mt76x02_sta_rate_tbl_update); 592 593 void mt76x02_remove_hdr_pad(struct sk_buff *skb, int len) 594 { 595 int hdrlen; 596 597 if (!len) 598 return; 599 600 hdrlen = ieee80211_get_hdrlen_from_skb(skb); 601 memmove(skb->data + len, skb->data, hdrlen); 602 skb_pull(skb, len); 603 } 604 EXPORT_SYMBOL_GPL(mt76x02_remove_hdr_pad); 605 606 void mt76x02_sw_scan_complete(struct ieee80211_hw *hw, 607 struct ieee80211_vif *vif) 608 { 609 struct mt76x02_dev *dev = hw->priv; 610 611 clear_bit(MT76_SCANNING, &dev->mphy.state); 612 if (dev->cal.gain_init_done) { 613 /* Restore AGC gain and resume calibration after scanning. */ 614 dev->cal.low_gain = -1; 615 ieee80211_queue_delayed_work(hw, &dev->cal_work, 0); 616 } 617 } 618 EXPORT_SYMBOL_GPL(mt76x02_sw_scan_complete); 619 620 void mt76x02_sta_ps(struct mt76_dev *mdev, struct ieee80211_sta *sta, 621 bool ps) 622 { 623 struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76); 624 struct mt76x02_sta *msta = (struct mt76x02_sta *)sta->drv_priv; 625 int idx = msta->wcid.idx; 626 627 mt76_stop_tx_queues(&dev->mt76, sta, true); 628 if (mt76_is_mmio(mdev)) 629 mt76x02_mac_wcid_set_drop(dev, idx, ps); 630 } 631 EXPORT_SYMBOL_GPL(mt76x02_sta_ps); 632 633 void mt76x02_bss_info_changed(struct ieee80211_hw *hw, 634 struct ieee80211_vif *vif, 635 struct ieee80211_bss_conf *info, 636 u32 changed) 637 { 638 struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv; 639 struct mt76x02_dev *dev = hw->priv; 640 641 mutex_lock(&dev->mt76.mutex); 642 643 if (changed & BSS_CHANGED_BSSID) 644 mt76x02_mac_set_bssid(dev, mvif->idx, info->bssid); 645 646 if (changed & BSS_CHANGED_HT || changed & BSS_CHANGED_ERP_CTS_PROT) 647 mt76x02_mac_set_tx_protection(dev, info->use_cts_prot, 648 info->ht_operation_mode); 649 650 if (changed & BSS_CHANGED_BEACON_INT) { 651 mt76_rmw_field(dev, MT_BEACON_TIME_CFG, 652 MT_BEACON_TIME_CFG_INTVAL, 653 info->beacon_int << 4); 654 dev->mt76.beacon_int = info->beacon_int; 655 } 656 657 if (changed & BSS_CHANGED_BEACON_ENABLED) 658 mt76x02_mac_set_beacon_enable(dev, vif, info->enable_beacon); 659 660 if (changed & BSS_CHANGED_ERP_PREAMBLE) 661 mt76x02_mac_set_short_preamble(dev, info->use_short_preamble); 662 663 if (changed & BSS_CHANGED_ERP_SLOT) { 664 int slottime = info->use_short_slot ? 9 : 20; 665 666 dev->slottime = slottime; 667 mt76x02_set_tx_ackto(dev); 668 } 669 670 mutex_unlock(&dev->mt76.mutex); 671 } 672 EXPORT_SYMBOL_GPL(mt76x02_bss_info_changed); 673 674 void mt76x02_config_mac_addr_list(struct mt76x02_dev *dev) 675 { 676 struct ieee80211_hw *hw = mt76_hw(dev); 677 struct wiphy *wiphy = hw->wiphy; 678 int i; 679 680 for (i = 0; i < ARRAY_SIZE(dev->macaddr_list); i++) { 681 u8 *addr = dev->macaddr_list[i].addr; 682 683 memcpy(addr, dev->mt76.macaddr, ETH_ALEN); 684 685 if (!i) 686 continue; 687 688 addr[0] |= BIT(1); 689 addr[0] ^= ((i - 1) << 2); 690 } 691 wiphy->addresses = dev->macaddr_list; 692 wiphy->n_addresses = ARRAY_SIZE(dev->macaddr_list); 693 } 694 EXPORT_SYMBOL_GPL(mt76x02_config_mac_addr_list); 695 696 MODULE_LICENSE("Dual BSD/GPL"); 697