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_AP) 50 }, 51 }; 52 53 static const struct ieee80211_iface_limit mt76x02u_if_limits[] = { 54 { 55 .max = 1, 56 .types = BIT(NL80211_IFTYPE_ADHOC) 57 }, { 58 .max = 2, 59 .types = BIT(NL80211_IFTYPE_STATION) | 60 #ifdef CONFIG_MAC80211_MESH 61 BIT(NL80211_IFTYPE_MESH_POINT) | 62 #endif 63 BIT(NL80211_IFTYPE_AP) 64 }, 65 }; 66 67 static const struct ieee80211_iface_combination mt76x02_if_comb[] = { 68 { 69 .limits = mt76x02_if_limits, 70 .n_limits = ARRAY_SIZE(mt76x02_if_limits), 71 .max_interfaces = 8, 72 .num_different_channels = 1, 73 .beacon_int_infra_match = true, 74 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) | 75 BIT(NL80211_CHAN_WIDTH_20) | 76 BIT(NL80211_CHAN_WIDTH_40) | 77 BIT(NL80211_CHAN_WIDTH_80), 78 } 79 }; 80 81 static const struct ieee80211_iface_combination mt76x02u_if_comb[] = { 82 { 83 .limits = mt76x02u_if_limits, 84 .n_limits = ARRAY_SIZE(mt76x02u_if_limits), 85 .max_interfaces = 2, 86 .num_different_channels = 1, 87 .beacon_int_infra_match = true, 88 } 89 }; 90 91 static void 92 mt76x02_led_set_config(struct mt76_dev *mdev, u8 delay_on, 93 u8 delay_off) 94 { 95 struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, 96 mt76); 97 u32 val; 98 99 val = MT_LED_STATUS_DURATION(0xff) | 100 MT_LED_STATUS_OFF(delay_off) | 101 MT_LED_STATUS_ON(delay_on); 102 103 mt76_wr(dev, MT_LED_S0(mdev->led_pin), val); 104 mt76_wr(dev, MT_LED_S1(mdev->led_pin), val); 105 106 val = MT_LED_CTRL_REPLAY(mdev->led_pin) | 107 MT_LED_CTRL_KICK(mdev->led_pin); 108 if (mdev->led_al) 109 val |= MT_LED_CTRL_POLARITY(mdev->led_pin); 110 mt76_wr(dev, MT_LED_CTRL, val); 111 } 112 113 static int 114 mt76x02_led_set_blink(struct led_classdev *led_cdev, 115 unsigned long *delay_on, 116 unsigned long *delay_off) 117 { 118 struct mt76_dev *mdev = container_of(led_cdev, struct mt76_dev, 119 led_cdev); 120 u8 delta_on, delta_off; 121 122 delta_off = max_t(u8, *delay_off / 10, 1); 123 delta_on = max_t(u8, *delay_on / 10, 1); 124 125 mt76x02_led_set_config(mdev, delta_on, delta_off); 126 127 return 0; 128 } 129 130 static void 131 mt76x02_led_set_brightness(struct led_classdev *led_cdev, 132 enum led_brightness brightness) 133 { 134 struct mt76_dev *mdev = container_of(led_cdev, struct mt76_dev, 135 led_cdev); 136 137 if (!brightness) 138 mt76x02_led_set_config(mdev, 0, 0xff); 139 else 140 mt76x02_led_set_config(mdev, 0xff, 0); 141 } 142 143 void mt76x02_init_device(struct mt76x02_dev *dev) 144 { 145 struct ieee80211_hw *hw = mt76_hw(dev); 146 struct wiphy *wiphy = hw->wiphy; 147 148 INIT_DELAYED_WORK(&dev->mt76.mac_work, mt76x02_mac_work); 149 150 hw->queues = 4; 151 hw->max_rates = 1; 152 hw->max_report_rates = 7; 153 hw->max_rate_tries = 1; 154 hw->extra_tx_headroom = 2; 155 156 if (mt76_is_usb(&dev->mt76)) { 157 hw->extra_tx_headroom += sizeof(struct mt76x02_txwi) + 158 MT_DMA_HDR_LEN; 159 wiphy->iface_combinations = mt76x02u_if_comb; 160 wiphy->n_iface_combinations = ARRAY_SIZE(mt76x02u_if_comb); 161 } else { 162 INIT_DELAYED_WORK(&dev->wdt_work, mt76x02_wdt_work); 163 164 mt76x02_dfs_init_detector(dev); 165 166 wiphy->reg_notifier = mt76x02_regd_notifier; 167 wiphy->iface_combinations = mt76x02_if_comb; 168 wiphy->n_iface_combinations = ARRAY_SIZE(mt76x02_if_comb); 169 wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; 170 171 /* init led callbacks */ 172 if (IS_ENABLED(CONFIG_MT76_LEDS)) { 173 dev->mt76.led_cdev.brightness_set = 174 mt76x02_led_set_brightness; 175 dev->mt76.led_cdev.blink_set = mt76x02_led_set_blink; 176 } 177 } 178 179 wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_VHT_IBSS); 180 181 hw->sta_data_size = sizeof(struct mt76x02_sta); 182 hw->vif_data_size = sizeof(struct mt76x02_vif); 183 184 ieee80211_hw_set(hw, SUPPORTS_HT_CCK_RATES); 185 186 dev->mt76.global_wcid.idx = 255; 187 dev->mt76.global_wcid.hw_key_idx = -1; 188 dev->slottime = 9; 189 190 if (is_mt76x2(dev)) { 191 dev->mt76.sband_2g.sband.ht_cap.cap |= 192 IEEE80211_HT_CAP_LDPC_CODING; 193 dev->mt76.sband_5g.sband.ht_cap.cap |= 194 IEEE80211_HT_CAP_LDPC_CODING; 195 dev->mt76.chainmask = 0x202; 196 dev->mt76.antenna_mask = 3; 197 } else { 198 dev->mt76.chainmask = 0x101; 199 dev->mt76.antenna_mask = 1; 200 } 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, ARRAY_SIZE(dev->mt76.wcid)); 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 mvif->group_wcid.hw_key_idx = -1; 291 mtxq = (struct mt76_txq *)vif->txq->drv_priv; 292 mtxq->wcid = &mvif->group_wcid; 293 294 mt76_txq_init(&dev->mt76, vif->txq); 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->vif_mask && 305 (((vif->addr[0] ^ dev->mt76.macaddr[0]) & ~GENMASK(4, 1)) || 306 memcmp(vif->addr + 1, dev->mt76.macaddr + 1, ETH_ALEN - 1))) 307 mt76x02_mac_setaddr(dev, vif->addr); 308 309 if (vif->addr[0] & BIT(1)) 310 idx = 1 + (((dev->mt76.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 if (dev->vif_mask & BIT(idx)) 329 return -EBUSY; 330 331 dev->vif_mask |= BIT(idx); 332 333 mt76x02_vif_init(dev, vif, idx); 334 return 0; 335 } 336 EXPORT_SYMBOL_GPL(mt76x02_add_interface); 337 338 void mt76x02_remove_interface(struct ieee80211_hw *hw, 339 struct ieee80211_vif *vif) 340 { 341 struct mt76x02_dev *dev = hw->priv; 342 struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv; 343 344 mt76_txq_remove(&dev->mt76, vif->txq); 345 dev->vif_mask &= ~BIT(mvif->idx); 346 } 347 EXPORT_SYMBOL_GPL(mt76x02_remove_interface); 348 349 int mt76x02_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 350 struct ieee80211_ampdu_params *params) 351 { 352 enum ieee80211_ampdu_mlme_action action = params->action; 353 struct ieee80211_sta *sta = params->sta; 354 struct mt76x02_dev *dev = hw->priv; 355 struct mt76x02_sta *msta = (struct mt76x02_sta *)sta->drv_priv; 356 struct ieee80211_txq *txq = sta->txq[params->tid]; 357 u16 tid = params->tid; 358 u16 ssn = params->ssn; 359 struct mt76_txq *mtxq; 360 int ret = 0; 361 362 if (!txq) 363 return -EINVAL; 364 365 mtxq = (struct mt76_txq *)txq->drv_priv; 366 367 mutex_lock(&dev->mt76.mutex); 368 switch (action) { 369 case IEEE80211_AMPDU_RX_START: 370 mt76_rx_aggr_start(&dev->mt76, &msta->wcid, tid, 371 ssn, params->buf_size); 372 mt76_set(dev, MT_WCID_ADDR(msta->wcid.idx) + 4, BIT(16 + tid)); 373 break; 374 case IEEE80211_AMPDU_RX_STOP: 375 mt76_rx_aggr_stop(&dev->mt76, &msta->wcid, tid); 376 mt76_clear(dev, MT_WCID_ADDR(msta->wcid.idx) + 4, 377 BIT(16 + tid)); 378 break; 379 case IEEE80211_AMPDU_TX_OPERATIONAL: 380 mtxq->aggr = true; 381 mtxq->send_bar = false; 382 ieee80211_send_bar(vif, sta->addr, tid, mtxq->agg_ssn); 383 break; 384 case IEEE80211_AMPDU_TX_STOP_FLUSH: 385 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 386 mtxq->aggr = false; 387 break; 388 case IEEE80211_AMPDU_TX_START: 389 mtxq->agg_ssn = IEEE80211_SN_TO_SEQ(ssn); 390 ret = IEEE80211_AMPDU_TX_START_IMMEDIATE; 391 break; 392 case IEEE80211_AMPDU_TX_STOP_CONT: 393 mtxq->aggr = false; 394 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 395 break; 396 } 397 mutex_unlock(&dev->mt76.mutex); 398 399 return ret; 400 } 401 EXPORT_SYMBOL_GPL(mt76x02_ampdu_action); 402 403 int mt76x02_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, 404 struct ieee80211_vif *vif, struct ieee80211_sta *sta, 405 struct ieee80211_key_conf *key) 406 { 407 struct mt76x02_dev *dev = hw->priv; 408 struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv; 409 struct mt76x02_sta *msta; 410 struct mt76_wcid *wcid; 411 int idx = key->keyidx; 412 int ret; 413 414 /* fall back to sw encryption for unsupported ciphers */ 415 switch (key->cipher) { 416 case WLAN_CIPHER_SUITE_WEP40: 417 case WLAN_CIPHER_SUITE_WEP104: 418 case WLAN_CIPHER_SUITE_TKIP: 419 case WLAN_CIPHER_SUITE_CCMP: 420 break; 421 default: 422 return -EOPNOTSUPP; 423 } 424 425 /* 426 * The hardware does not support per-STA RX GTK, fall back 427 * to software mode for these. 428 */ 429 if ((vif->type == NL80211_IFTYPE_ADHOC || 430 vif->type == NL80211_IFTYPE_MESH_POINT) && 431 (key->cipher == WLAN_CIPHER_SUITE_TKIP || 432 key->cipher == WLAN_CIPHER_SUITE_CCMP) && 433 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) 434 return -EOPNOTSUPP; 435 436 /* 437 * In USB AP mode, broadcast/multicast frames are setup in beacon 438 * data registers and sent via HW beacons engine, they require to 439 * be already encrypted. 440 */ 441 if (mt76_is_usb(&dev->mt76) && 442 vif->type == NL80211_IFTYPE_AP && 443 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) 444 return -EOPNOTSUPP; 445 446 msta = sta ? (struct mt76x02_sta *)sta->drv_priv : NULL; 447 wcid = msta ? &msta->wcid : &mvif->group_wcid; 448 449 if (cmd == SET_KEY) { 450 key->hw_key_idx = wcid->idx; 451 wcid->hw_key_idx = idx; 452 if (key->flags & IEEE80211_KEY_FLAG_RX_MGMT) { 453 key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX; 454 wcid->sw_iv = true; 455 } 456 } else { 457 if (idx == wcid->hw_key_idx) { 458 wcid->hw_key_idx = -1; 459 wcid->sw_iv = false; 460 } 461 462 key = NULL; 463 } 464 mt76_wcid_key_setup(&dev->mt76, wcid, key); 465 466 if (!msta) { 467 if (key || wcid->hw_key_idx == idx) { 468 ret = mt76x02_mac_wcid_set_key(dev, wcid->idx, key); 469 if (ret) 470 return ret; 471 } 472 473 return mt76x02_mac_shared_key_setup(dev, mvif->idx, idx, key); 474 } 475 476 return mt76x02_mac_wcid_set_key(dev, msta->wcid.idx, key); 477 } 478 EXPORT_SYMBOL_GPL(mt76x02_set_key); 479 480 int mt76x02_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 481 u16 queue, const struct ieee80211_tx_queue_params *params) 482 { 483 struct mt76x02_dev *dev = hw->priv; 484 u8 cw_min = 5, cw_max = 10, qid; 485 u32 val; 486 487 qid = dev->mt76.q_tx[queue].q->hw_idx; 488 489 if (params->cw_min) 490 cw_min = fls(params->cw_min); 491 if (params->cw_max) 492 cw_max = fls(params->cw_max); 493 494 val = FIELD_PREP(MT_EDCA_CFG_TXOP, params->txop) | 495 FIELD_PREP(MT_EDCA_CFG_AIFSN, params->aifs) | 496 FIELD_PREP(MT_EDCA_CFG_CWMIN, cw_min) | 497 FIELD_PREP(MT_EDCA_CFG_CWMAX, cw_max); 498 mt76_wr(dev, MT_EDCA_CFG_AC(qid), val); 499 500 val = mt76_rr(dev, MT_WMM_TXOP(qid)); 501 val &= ~(MT_WMM_TXOP_MASK << MT_WMM_TXOP_SHIFT(qid)); 502 val |= params->txop << MT_WMM_TXOP_SHIFT(qid); 503 mt76_wr(dev, MT_WMM_TXOP(qid), val); 504 505 val = mt76_rr(dev, MT_WMM_AIFSN); 506 val &= ~(MT_WMM_AIFSN_MASK << MT_WMM_AIFSN_SHIFT(qid)); 507 val |= params->aifs << MT_WMM_AIFSN_SHIFT(qid); 508 mt76_wr(dev, MT_WMM_AIFSN, val); 509 510 val = mt76_rr(dev, MT_WMM_CWMIN); 511 val &= ~(MT_WMM_CWMIN_MASK << MT_WMM_CWMIN_SHIFT(qid)); 512 val |= cw_min << MT_WMM_CWMIN_SHIFT(qid); 513 mt76_wr(dev, MT_WMM_CWMIN, val); 514 515 val = mt76_rr(dev, MT_WMM_CWMAX); 516 val &= ~(MT_WMM_CWMAX_MASK << MT_WMM_CWMAX_SHIFT(qid)); 517 val |= cw_max << MT_WMM_CWMAX_SHIFT(qid); 518 mt76_wr(dev, MT_WMM_CWMAX, val); 519 520 return 0; 521 } 522 EXPORT_SYMBOL_GPL(mt76x02_conf_tx); 523 524 void mt76x02_set_tx_ackto(struct mt76x02_dev *dev) 525 { 526 u8 ackto, sifs, slottime = dev->slottime; 527 528 /* As defined by IEEE 802.11-2007 17.3.8.6 */ 529 slottime += 3 * dev->coverage_class; 530 mt76_rmw_field(dev, MT_BKOFF_SLOT_CFG, 531 MT_BKOFF_SLOT_CFG_SLOTTIME, slottime); 532 533 sifs = mt76_get_field(dev, MT_XIFS_TIME_CFG, 534 MT_XIFS_TIME_CFG_OFDM_SIFS); 535 536 ackto = slottime + sifs; 537 mt76_rmw_field(dev, MT_TX_TIMEOUT_CFG, 538 MT_TX_TIMEOUT_CFG_ACKTO, ackto); 539 } 540 EXPORT_SYMBOL_GPL(mt76x02_set_tx_ackto); 541 542 void mt76x02_set_coverage_class(struct ieee80211_hw *hw, 543 s16 coverage_class) 544 { 545 struct mt76x02_dev *dev = hw->priv; 546 547 mutex_lock(&dev->mt76.mutex); 548 dev->coverage_class = coverage_class; 549 mt76x02_set_tx_ackto(dev); 550 mutex_unlock(&dev->mt76.mutex); 551 } 552 EXPORT_SYMBOL_GPL(mt76x02_set_coverage_class); 553 554 int mt76x02_set_rts_threshold(struct ieee80211_hw *hw, u32 val) 555 { 556 struct mt76x02_dev *dev = hw->priv; 557 558 if (val != ~0 && val > 0xffff) 559 return -EINVAL; 560 561 mutex_lock(&dev->mt76.mutex); 562 mt76x02_mac_set_rts_thresh(dev, val); 563 mutex_unlock(&dev->mt76.mutex); 564 565 return 0; 566 } 567 EXPORT_SYMBOL_GPL(mt76x02_set_rts_threshold); 568 569 void mt76x02_sta_rate_tbl_update(struct ieee80211_hw *hw, 570 struct ieee80211_vif *vif, 571 struct ieee80211_sta *sta) 572 { 573 struct mt76x02_dev *dev = hw->priv; 574 struct mt76x02_sta *msta = (struct mt76x02_sta *)sta->drv_priv; 575 struct ieee80211_sta_rates *rates = rcu_dereference(sta->rates); 576 struct ieee80211_tx_rate rate = {}; 577 578 if (!rates) 579 return; 580 581 rate.idx = rates->rate[0].idx; 582 rate.flags = rates->rate[0].flags; 583 mt76x02_mac_wcid_set_rate(dev, &msta->wcid, &rate); 584 } 585 EXPORT_SYMBOL_GPL(mt76x02_sta_rate_tbl_update); 586 587 void mt76x02_remove_hdr_pad(struct sk_buff *skb, int len) 588 { 589 int hdrlen; 590 591 if (!len) 592 return; 593 594 hdrlen = ieee80211_get_hdrlen_from_skb(skb); 595 memmove(skb->data + len, skb->data, hdrlen); 596 skb_pull(skb, len); 597 } 598 EXPORT_SYMBOL_GPL(mt76x02_remove_hdr_pad); 599 600 void mt76x02_sw_scan_complete(struct ieee80211_hw *hw, 601 struct ieee80211_vif *vif) 602 { 603 struct mt76x02_dev *dev = hw->priv; 604 605 clear_bit(MT76_SCANNING, &dev->mt76.state); 606 if (dev->cal.gain_init_done) { 607 /* Restore AGC gain and resume calibration after scanning. */ 608 dev->cal.low_gain = -1; 609 ieee80211_queue_delayed_work(hw, &dev->cal_work, 0); 610 } 611 } 612 EXPORT_SYMBOL_GPL(mt76x02_sw_scan_complete); 613 614 void mt76x02_sta_ps(struct mt76_dev *mdev, struct ieee80211_sta *sta, 615 bool ps) 616 { 617 struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76); 618 struct mt76x02_sta *msta = (struct mt76x02_sta *)sta->drv_priv; 619 int idx = msta->wcid.idx; 620 621 mt76_stop_tx_queues(&dev->mt76, sta, true); 622 if (mt76_is_mmio(mdev)) 623 mt76x02_mac_wcid_set_drop(dev, idx, ps); 624 } 625 EXPORT_SYMBOL_GPL(mt76x02_sta_ps); 626 627 void mt76x02_bss_info_changed(struct ieee80211_hw *hw, 628 struct ieee80211_vif *vif, 629 struct ieee80211_bss_conf *info, 630 u32 changed) 631 { 632 struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv; 633 struct mt76x02_dev *dev = hw->priv; 634 635 mutex_lock(&dev->mt76.mutex); 636 637 if (changed & BSS_CHANGED_BSSID) 638 mt76x02_mac_set_bssid(dev, mvif->idx, info->bssid); 639 640 if (changed & BSS_CHANGED_HT || changed & BSS_CHANGED_ERP_CTS_PROT) 641 mt76x02_mac_set_tx_protection(dev, info->use_cts_prot, 642 info->ht_operation_mode); 643 644 if (changed & BSS_CHANGED_BEACON_INT) { 645 mt76_rmw_field(dev, MT_BEACON_TIME_CFG, 646 MT_BEACON_TIME_CFG_INTVAL, 647 info->beacon_int << 4); 648 dev->mt76.beacon_int = info->beacon_int; 649 } 650 651 if (changed & BSS_CHANGED_BEACON_ENABLED) 652 mt76x02_mac_set_beacon_enable(dev, vif, info->enable_beacon); 653 654 if (changed & BSS_CHANGED_ERP_PREAMBLE) 655 mt76x02_mac_set_short_preamble(dev, info->use_short_preamble); 656 657 if (changed & BSS_CHANGED_ERP_SLOT) { 658 int slottime = info->use_short_slot ? 9 : 20; 659 660 dev->slottime = slottime; 661 mt76x02_set_tx_ackto(dev); 662 } 663 664 mutex_unlock(&dev->mt76.mutex); 665 } 666 EXPORT_SYMBOL_GPL(mt76x02_bss_info_changed); 667 668 void mt76x02_config_mac_addr_list(struct mt76x02_dev *dev) 669 { 670 struct ieee80211_hw *hw = mt76_hw(dev); 671 struct wiphy *wiphy = hw->wiphy; 672 int i; 673 674 for (i = 0; i < ARRAY_SIZE(dev->macaddr_list); i++) { 675 u8 *addr = dev->macaddr_list[i].addr; 676 677 memcpy(addr, dev->mt76.macaddr, ETH_ALEN); 678 679 if (!i) 680 continue; 681 682 addr[0] |= BIT(1); 683 addr[0] ^= ((i - 1) << 2); 684 } 685 wiphy->addresses = dev->macaddr_list; 686 wiphy->n_addresses = ARRAY_SIZE(dev->macaddr_list); 687 } 688 EXPORT_SYMBOL_GPL(mt76x02_config_mac_addr_list); 689 690 MODULE_LICENSE("Dual BSD/GPL"); 691