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 } 298 299 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->mphy.vif_mask && 307 (((vif->addr[0] ^ dev->mt76.macaddr[0]) & ~GENMASK(4, 1)) || 308 memcmp(vif->addr + 1, dev->mt76.macaddr + 1, ETH_ALEN - 1))) 309 mt76x02_mac_setaddr(dev, vif->addr); 310 311 if (vif->addr[0] & BIT(1)) 312 idx = 1 + (((dev->mt76.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->mphy.vif_mask & BIT(idx) || 332 (vif->type != NL80211_IFTYPE_STATION && idx > 7)) 333 return -EBUSY; 334 335 dev->mphy.vif_mask |= BIT(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->mphy.vif_mask &= ~BIT(mvif->idx); 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 msta = sta ? (struct mt76x02_sta *)sta->drv_priv : NULL; 450 wcid = msta ? &msta->wcid : &mvif->group_wcid; 451 452 if (cmd == SET_KEY) { 453 key->hw_key_idx = wcid->idx; 454 wcid->hw_key_idx = idx; 455 if (key->flags & IEEE80211_KEY_FLAG_RX_MGMT) { 456 key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX; 457 wcid->sw_iv = true; 458 } 459 } else { 460 if (idx == wcid->hw_key_idx) { 461 wcid->hw_key_idx = -1; 462 wcid->sw_iv = false; 463 } 464 465 key = NULL; 466 } 467 mt76_wcid_key_setup(&dev->mt76, wcid, key); 468 469 if (!msta) { 470 if (key || wcid->hw_key_idx == idx) { 471 ret = mt76x02_mac_wcid_set_key(dev, wcid->idx, key); 472 if (ret) 473 return ret; 474 } 475 476 return mt76x02_mac_shared_key_setup(dev, mvif->idx, idx, key); 477 } 478 479 return mt76x02_mac_wcid_set_key(dev, msta->wcid.idx, key); 480 } 481 EXPORT_SYMBOL_GPL(mt76x02_set_key); 482 483 int mt76x02_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 484 u16 queue, const struct ieee80211_tx_queue_params *params) 485 { 486 struct mt76x02_dev *dev = hw->priv; 487 u8 cw_min = 5, cw_max = 10, qid; 488 u32 val; 489 490 qid = dev->mt76.q_tx[queue]->hw_idx; 491 492 if (params->cw_min) 493 cw_min = fls(params->cw_min); 494 if (params->cw_max) 495 cw_max = fls(params->cw_max); 496 497 val = FIELD_PREP(MT_EDCA_CFG_TXOP, params->txop) | 498 FIELD_PREP(MT_EDCA_CFG_AIFSN, params->aifs) | 499 FIELD_PREP(MT_EDCA_CFG_CWMIN, cw_min) | 500 FIELD_PREP(MT_EDCA_CFG_CWMAX, cw_max); 501 mt76_wr(dev, MT_EDCA_CFG_AC(qid), val); 502 503 val = mt76_rr(dev, MT_WMM_TXOP(qid)); 504 val &= ~(MT_WMM_TXOP_MASK << MT_WMM_TXOP_SHIFT(qid)); 505 val |= params->txop << MT_WMM_TXOP_SHIFT(qid); 506 mt76_wr(dev, MT_WMM_TXOP(qid), val); 507 508 val = mt76_rr(dev, MT_WMM_AIFSN); 509 val &= ~(MT_WMM_AIFSN_MASK << MT_WMM_AIFSN_SHIFT(qid)); 510 val |= params->aifs << MT_WMM_AIFSN_SHIFT(qid); 511 mt76_wr(dev, MT_WMM_AIFSN, val); 512 513 val = mt76_rr(dev, MT_WMM_CWMIN); 514 val &= ~(MT_WMM_CWMIN_MASK << MT_WMM_CWMIN_SHIFT(qid)); 515 val |= cw_min << MT_WMM_CWMIN_SHIFT(qid); 516 mt76_wr(dev, MT_WMM_CWMIN, val); 517 518 val = mt76_rr(dev, MT_WMM_CWMAX); 519 val &= ~(MT_WMM_CWMAX_MASK << MT_WMM_CWMAX_SHIFT(qid)); 520 val |= cw_max << MT_WMM_CWMAX_SHIFT(qid); 521 mt76_wr(dev, MT_WMM_CWMAX, val); 522 523 return 0; 524 } 525 EXPORT_SYMBOL_GPL(mt76x02_conf_tx); 526 527 void mt76x02_set_tx_ackto(struct mt76x02_dev *dev) 528 { 529 u8 ackto, sifs, slottime = dev->slottime; 530 531 /* As defined by IEEE 802.11-2007 17.3.8.6 */ 532 slottime += 3 * dev->coverage_class; 533 mt76_rmw_field(dev, MT_BKOFF_SLOT_CFG, 534 MT_BKOFF_SLOT_CFG_SLOTTIME, slottime); 535 536 sifs = mt76_get_field(dev, MT_XIFS_TIME_CFG, 537 MT_XIFS_TIME_CFG_OFDM_SIFS); 538 539 ackto = slottime + sifs; 540 mt76_rmw_field(dev, MT_TX_TIMEOUT_CFG, 541 MT_TX_TIMEOUT_CFG_ACKTO, ackto); 542 } 543 EXPORT_SYMBOL_GPL(mt76x02_set_tx_ackto); 544 545 void mt76x02_set_coverage_class(struct ieee80211_hw *hw, 546 s16 coverage_class) 547 { 548 struct mt76x02_dev *dev = hw->priv; 549 550 mutex_lock(&dev->mt76.mutex); 551 dev->coverage_class = max_t(s16, coverage_class, 0); 552 mt76x02_set_tx_ackto(dev); 553 mutex_unlock(&dev->mt76.mutex); 554 } 555 EXPORT_SYMBOL_GPL(mt76x02_set_coverage_class); 556 557 int mt76x02_set_rts_threshold(struct ieee80211_hw *hw, u32 val) 558 { 559 struct mt76x02_dev *dev = hw->priv; 560 561 if (val != ~0 && val > 0xffff) 562 return -EINVAL; 563 564 mutex_lock(&dev->mt76.mutex); 565 mt76x02_mac_set_rts_thresh(dev, val); 566 mutex_unlock(&dev->mt76.mutex); 567 568 return 0; 569 } 570 EXPORT_SYMBOL_GPL(mt76x02_set_rts_threshold); 571 572 void mt76x02_sta_rate_tbl_update(struct ieee80211_hw *hw, 573 struct ieee80211_vif *vif, 574 struct ieee80211_sta *sta) 575 { 576 struct mt76x02_dev *dev = hw->priv; 577 struct mt76x02_sta *msta = (struct mt76x02_sta *)sta->drv_priv; 578 struct ieee80211_sta_rates *rates = rcu_dereference(sta->rates); 579 struct ieee80211_tx_rate rate = {}; 580 581 if (!rates) 582 return; 583 584 rate.idx = rates->rate[0].idx; 585 rate.flags = rates->rate[0].flags; 586 mt76x02_mac_wcid_set_rate(dev, &msta->wcid, &rate); 587 } 588 EXPORT_SYMBOL_GPL(mt76x02_sta_rate_tbl_update); 589 590 void mt76x02_remove_hdr_pad(struct sk_buff *skb, int len) 591 { 592 int hdrlen; 593 594 if (!len) 595 return; 596 597 hdrlen = ieee80211_get_hdrlen_from_skb(skb); 598 memmove(skb->data + len, skb->data, hdrlen); 599 skb_pull(skb, len); 600 } 601 EXPORT_SYMBOL_GPL(mt76x02_remove_hdr_pad); 602 603 void mt76x02_sw_scan_complete(struct ieee80211_hw *hw, 604 struct ieee80211_vif *vif) 605 { 606 struct mt76x02_dev *dev = hw->priv; 607 608 clear_bit(MT76_SCANNING, &dev->mphy.state); 609 if (dev->cal.gain_init_done) { 610 /* Restore AGC gain and resume calibration after scanning. */ 611 dev->cal.low_gain = -1; 612 ieee80211_queue_delayed_work(hw, &dev->cal_work, 0); 613 } 614 } 615 EXPORT_SYMBOL_GPL(mt76x02_sw_scan_complete); 616 617 void mt76x02_sta_ps(struct mt76_dev *mdev, struct ieee80211_sta *sta, 618 bool ps) 619 { 620 struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76); 621 struct mt76x02_sta *msta = (struct mt76x02_sta *)sta->drv_priv; 622 int idx = msta->wcid.idx; 623 624 mt76_stop_tx_queues(&dev->mt76, sta, true); 625 if (mt76_is_mmio(mdev)) 626 mt76x02_mac_wcid_set_drop(dev, idx, ps); 627 } 628 EXPORT_SYMBOL_GPL(mt76x02_sta_ps); 629 630 void mt76x02_bss_info_changed(struct ieee80211_hw *hw, 631 struct ieee80211_vif *vif, 632 struct ieee80211_bss_conf *info, 633 u32 changed) 634 { 635 struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv; 636 struct mt76x02_dev *dev = hw->priv; 637 638 mutex_lock(&dev->mt76.mutex); 639 640 if (changed & BSS_CHANGED_BSSID) 641 mt76x02_mac_set_bssid(dev, mvif->idx, info->bssid); 642 643 if (changed & BSS_CHANGED_HT || changed & BSS_CHANGED_ERP_CTS_PROT) 644 mt76x02_mac_set_tx_protection(dev, info->use_cts_prot, 645 info->ht_operation_mode); 646 647 if (changed & BSS_CHANGED_BEACON_INT) { 648 mt76_rmw_field(dev, MT_BEACON_TIME_CFG, 649 MT_BEACON_TIME_CFG_INTVAL, 650 info->beacon_int << 4); 651 dev->mt76.beacon_int = info->beacon_int; 652 } 653 654 if (changed & BSS_CHANGED_BEACON_ENABLED) 655 mt76x02_mac_set_beacon_enable(dev, vif, info->enable_beacon); 656 657 if (changed & BSS_CHANGED_ERP_PREAMBLE) 658 mt76x02_mac_set_short_preamble(dev, info->use_short_preamble); 659 660 if (changed & BSS_CHANGED_ERP_SLOT) { 661 int slottime = info->use_short_slot ? 9 : 20; 662 663 dev->slottime = slottime; 664 mt76x02_set_tx_ackto(dev); 665 } 666 667 mutex_unlock(&dev->mt76.mutex); 668 } 669 EXPORT_SYMBOL_GPL(mt76x02_bss_info_changed); 670 671 void mt76x02_config_mac_addr_list(struct mt76x02_dev *dev) 672 { 673 struct ieee80211_hw *hw = mt76_hw(dev); 674 struct wiphy *wiphy = hw->wiphy; 675 int i; 676 677 for (i = 0; i < ARRAY_SIZE(dev->macaddr_list); i++) { 678 u8 *addr = dev->macaddr_list[i].addr; 679 680 memcpy(addr, dev->mt76.macaddr, ETH_ALEN); 681 682 if (!i) 683 continue; 684 685 addr[0] |= BIT(1); 686 addr[0] ^= ((i - 1) << 2); 687 } 688 wiphy->addresses = dev->macaddr_list; 689 wiphy->n_addresses = ARRAY_SIZE(dev->macaddr_list); 690 } 691 EXPORT_SYMBOL_GPL(mt76x02_config_mac_addr_list); 692 693 MODULE_LICENSE("Dual BSD/GPL"); 694