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 wiphy->interface_modes = 157 BIT(NL80211_IFTYPE_STATION) | 158 BIT(NL80211_IFTYPE_AP) | 159 #ifdef CONFIG_MAC80211_MESH 160 BIT(NL80211_IFTYPE_MESH_POINT) | 161 #endif 162 BIT(NL80211_IFTYPE_ADHOC); 163 164 if (mt76_is_usb(dev)) { 165 hw->extra_tx_headroom += sizeof(struct mt76x02_txwi) + 166 MT_DMA_HDR_LEN; 167 wiphy->iface_combinations = mt76x02u_if_comb; 168 wiphy->n_iface_combinations = ARRAY_SIZE(mt76x02u_if_comb); 169 } else { 170 INIT_DELAYED_WORK(&dev->wdt_work, mt76x02_wdt_work); 171 172 mt76x02_dfs_init_detector(dev); 173 174 wiphy->reg_notifier = mt76x02_regd_notifier; 175 wiphy->iface_combinations = mt76x02_if_comb; 176 wiphy->n_iface_combinations = ARRAY_SIZE(mt76x02_if_comb); 177 wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; 178 179 /* init led callbacks */ 180 if (IS_ENABLED(CONFIG_MT76_LEDS)) { 181 dev->mt76.led_cdev.brightness_set = 182 mt76x02_led_set_brightness; 183 dev->mt76.led_cdev.blink_set = mt76x02_led_set_blink; 184 } 185 } 186 187 wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_VHT_IBSS); 188 189 hw->sta_data_size = sizeof(struct mt76x02_sta); 190 hw->vif_data_size = sizeof(struct mt76x02_vif); 191 192 ieee80211_hw_set(hw, SUPPORTS_HT_CCK_RATES); 193 ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER); 194 195 dev->mt76.global_wcid.idx = 255; 196 dev->mt76.global_wcid.hw_key_idx = -1; 197 dev->slottime = 9; 198 199 if (is_mt76x2(dev)) { 200 dev->mt76.sband_2g.sband.ht_cap.cap |= 201 IEEE80211_HT_CAP_LDPC_CODING; 202 dev->mt76.sband_5g.sband.ht_cap.cap |= 203 IEEE80211_HT_CAP_LDPC_CODING; 204 dev->mt76.chainmask = 0x202; 205 dev->mt76.antenna_mask = 3; 206 } else { 207 dev->mt76.chainmask = 0x101; 208 dev->mt76.antenna_mask = 1; 209 } 210 } 211 EXPORT_SYMBOL_GPL(mt76x02_init_device); 212 213 void mt76x02_configure_filter(struct ieee80211_hw *hw, 214 unsigned int changed_flags, 215 unsigned int *total_flags, u64 multicast) 216 { 217 struct mt76x02_dev *dev = hw->priv; 218 u32 flags = 0; 219 220 #define MT76_FILTER(_flag, _hw) do { \ 221 flags |= *total_flags & FIF_##_flag; \ 222 dev->mt76.rxfilter &= ~(_hw); \ 223 dev->mt76.rxfilter |= !(flags & FIF_##_flag) * (_hw); \ 224 } while (0) 225 226 mutex_lock(&dev->mt76.mutex); 227 228 dev->mt76.rxfilter &= ~MT_RX_FILTR_CFG_OTHER_BSS; 229 230 MT76_FILTER(FCSFAIL, MT_RX_FILTR_CFG_CRC_ERR); 231 MT76_FILTER(PLCPFAIL, MT_RX_FILTR_CFG_PHY_ERR); 232 MT76_FILTER(CONTROL, MT_RX_FILTR_CFG_ACK | 233 MT_RX_FILTR_CFG_CTS | 234 MT_RX_FILTR_CFG_CFEND | 235 MT_RX_FILTR_CFG_CFACK | 236 MT_RX_FILTR_CFG_BA | 237 MT_RX_FILTR_CFG_CTRL_RSV); 238 MT76_FILTER(PSPOLL, MT_RX_FILTR_CFG_PSPOLL); 239 240 *total_flags = flags; 241 mt76_wr(dev, MT_RX_FILTR_CFG, dev->mt76.rxfilter); 242 243 mutex_unlock(&dev->mt76.mutex); 244 } 245 EXPORT_SYMBOL_GPL(mt76x02_configure_filter); 246 247 int mt76x02_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif, 248 struct ieee80211_sta *sta) 249 { 250 struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76); 251 struct mt76x02_sta *msta = (struct mt76x02_sta *)sta->drv_priv; 252 struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv; 253 int idx = 0; 254 255 memset(msta, 0, sizeof(*msta)); 256 257 idx = mt76_wcid_alloc(dev->mt76.wcid_mask, ARRAY_SIZE(dev->mt76.wcid)); 258 if (idx < 0) 259 return -ENOSPC; 260 261 msta->vif = mvif; 262 msta->wcid.sta = 1; 263 msta->wcid.idx = idx; 264 msta->wcid.hw_key_idx = -1; 265 mt76x02_mac_wcid_setup(dev, idx, mvif->idx, sta->addr); 266 mt76x02_mac_wcid_set_drop(dev, idx, false); 267 268 if (vif->type == NL80211_IFTYPE_AP) 269 set_bit(MT_WCID_FLAG_CHECK_PS, &msta->wcid.flags); 270 271 return 0; 272 } 273 EXPORT_SYMBOL_GPL(mt76x02_sta_add); 274 275 void mt76x02_sta_remove(struct mt76_dev *mdev, struct ieee80211_vif *vif, 276 struct ieee80211_sta *sta) 277 { 278 struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76); 279 struct mt76_wcid *wcid = (struct mt76_wcid *)sta->drv_priv; 280 int idx = wcid->idx; 281 282 mt76x02_mac_wcid_set_drop(dev, idx, true); 283 mt76x02_mac_wcid_setup(dev, idx, 0, NULL); 284 } 285 EXPORT_SYMBOL_GPL(mt76x02_sta_remove); 286 287 static void 288 mt76x02_vif_init(struct mt76x02_dev *dev, struct ieee80211_vif *vif, 289 unsigned int idx) 290 { 291 struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv; 292 struct mt76_txq *mtxq; 293 294 memset(mvif, 0, sizeof(*mvif)); 295 296 mvif->idx = idx; 297 mvif->group_wcid.idx = MT_VIF_WCID(idx); 298 mvif->group_wcid.hw_key_idx = -1; 299 mtxq = (struct mt76_txq *)vif->txq->drv_priv; 300 mtxq->wcid = &mvif->group_wcid; 301 302 mt76_txq_init(&dev->mt76, vif->txq); 303 } 304 305 int 306 mt76x02_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) 307 { 308 struct mt76x02_dev *dev = hw->priv; 309 unsigned int idx = 0; 310 311 /* Allow to change address in HW if we create first interface. */ 312 if (!dev->vif_mask && 313 (((vif->addr[0] ^ dev->mt76.macaddr[0]) & ~GENMASK(4, 1)) || 314 memcmp(vif->addr + 1, dev->mt76.macaddr + 1, ETH_ALEN - 1))) 315 mt76x02_mac_setaddr(dev, vif->addr); 316 317 if (vif->addr[0] & BIT(1)) 318 idx = 1 + (((dev->mt76.macaddr[0] ^ vif->addr[0]) >> 2) & 7); 319 320 /* 321 * Client mode typically only has one configurable BSSID register, 322 * which is used for bssidx=0. This is linked to the MAC address. 323 * Since mac80211 allows changing interface types, and we cannot 324 * force the use of the primary MAC address for a station mode 325 * interface, we need some other way of configuring a per-interface 326 * remote BSSID. 327 * The hardware provides an AP-Client feature, where bssidx 0-7 are 328 * used for AP mode and bssidx 8-15 for client mode. 329 * We shift the station interface bss index by 8 to force the 330 * hardware to recognize the BSSID. 331 * The resulting bssidx mismatch for unicast frames is ignored by hw. 332 */ 333 if (vif->type == NL80211_IFTYPE_STATION) 334 idx += 8; 335 336 if (dev->vif_mask & BIT(idx)) 337 return -EBUSY; 338 339 dev->vif_mask |= BIT(idx); 340 341 mt76x02_vif_init(dev, vif, idx); 342 return 0; 343 } 344 EXPORT_SYMBOL_GPL(mt76x02_add_interface); 345 346 void mt76x02_remove_interface(struct ieee80211_hw *hw, 347 struct ieee80211_vif *vif) 348 { 349 struct mt76x02_dev *dev = hw->priv; 350 struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv; 351 352 mt76_txq_remove(&dev->mt76, vif->txq); 353 dev->vif_mask &= ~BIT(mvif->idx); 354 } 355 EXPORT_SYMBOL_GPL(mt76x02_remove_interface); 356 357 int mt76x02_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 358 struct ieee80211_ampdu_params *params) 359 { 360 enum ieee80211_ampdu_mlme_action action = params->action; 361 struct ieee80211_sta *sta = params->sta; 362 struct mt76x02_dev *dev = hw->priv; 363 struct mt76x02_sta *msta = (struct mt76x02_sta *)sta->drv_priv; 364 struct ieee80211_txq *txq = sta->txq[params->tid]; 365 u16 tid = params->tid; 366 u16 ssn = params->ssn; 367 struct mt76_txq *mtxq; 368 369 if (!txq) 370 return -EINVAL; 371 372 mtxq = (struct mt76_txq *)txq->drv_priv; 373 374 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 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid); 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 } 403 404 return 0; 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) && 447 vif->type == NL80211_IFTYPE_AP && 448 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) 449 return -EOPNOTSUPP; 450 451 msta = sta ? (struct mt76x02_sta *)sta->drv_priv : NULL; 452 wcid = msta ? &msta->wcid : &mvif->group_wcid; 453 454 if (cmd == SET_KEY) { 455 key->hw_key_idx = wcid->idx; 456 wcid->hw_key_idx = idx; 457 if (key->flags & IEEE80211_KEY_FLAG_RX_MGMT) { 458 key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX; 459 wcid->sw_iv = true; 460 } 461 } else { 462 if (idx == wcid->hw_key_idx) { 463 wcid->hw_key_idx = -1; 464 wcid->sw_iv = false; 465 } 466 467 key = NULL; 468 } 469 mt76_wcid_key_setup(&dev->mt76, wcid, key); 470 471 if (!msta) { 472 if (key || wcid->hw_key_idx == idx) { 473 ret = mt76x02_mac_wcid_set_key(dev, wcid->idx, key); 474 if (ret) 475 return ret; 476 } 477 478 return mt76x02_mac_shared_key_setup(dev, mvif->idx, idx, key); 479 } 480 481 return mt76x02_mac_wcid_set_key(dev, msta->wcid.idx, key); 482 } 483 EXPORT_SYMBOL_GPL(mt76x02_set_key); 484 485 int mt76x02_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 486 u16 queue, const struct ieee80211_tx_queue_params *params) 487 { 488 struct mt76x02_dev *dev = hw->priv; 489 u8 cw_min = 5, cw_max = 10, qid; 490 u32 val; 491 492 qid = dev->mt76.q_tx[queue].q->hw_idx; 493 494 if (params->cw_min) 495 cw_min = fls(params->cw_min); 496 if (params->cw_max) 497 cw_max = fls(params->cw_max); 498 499 val = FIELD_PREP(MT_EDCA_CFG_TXOP, params->txop) | 500 FIELD_PREP(MT_EDCA_CFG_AIFSN, params->aifs) | 501 FIELD_PREP(MT_EDCA_CFG_CWMIN, cw_min) | 502 FIELD_PREP(MT_EDCA_CFG_CWMAX, cw_max); 503 mt76_wr(dev, MT_EDCA_CFG_AC(qid), val); 504 505 val = mt76_rr(dev, MT_WMM_TXOP(qid)); 506 val &= ~(MT_WMM_TXOP_MASK << MT_WMM_TXOP_SHIFT(qid)); 507 val |= params->txop << MT_WMM_TXOP_SHIFT(qid); 508 mt76_wr(dev, MT_WMM_TXOP(qid), val); 509 510 val = mt76_rr(dev, MT_WMM_AIFSN); 511 val &= ~(MT_WMM_AIFSN_MASK << MT_WMM_AIFSN_SHIFT(qid)); 512 val |= params->aifs << MT_WMM_AIFSN_SHIFT(qid); 513 mt76_wr(dev, MT_WMM_AIFSN, val); 514 515 val = mt76_rr(dev, MT_WMM_CWMIN); 516 val &= ~(MT_WMM_CWMIN_MASK << MT_WMM_CWMIN_SHIFT(qid)); 517 val |= cw_min << MT_WMM_CWMIN_SHIFT(qid); 518 mt76_wr(dev, MT_WMM_CWMIN, val); 519 520 val = mt76_rr(dev, MT_WMM_CWMAX); 521 val &= ~(MT_WMM_CWMAX_MASK << MT_WMM_CWMAX_SHIFT(qid)); 522 val |= cw_max << MT_WMM_CWMAX_SHIFT(qid); 523 mt76_wr(dev, MT_WMM_CWMAX, val); 524 525 return 0; 526 } 527 EXPORT_SYMBOL_GPL(mt76x02_conf_tx); 528 529 void mt76x02_set_tx_ackto(struct mt76x02_dev *dev) 530 { 531 u8 ackto, sifs, slottime = dev->slottime; 532 533 /* As defined by IEEE 802.11-2007 17.3.8.6 */ 534 slottime += 3 * dev->coverage_class; 535 mt76_rmw_field(dev, MT_BKOFF_SLOT_CFG, 536 MT_BKOFF_SLOT_CFG_SLOTTIME, slottime); 537 538 sifs = mt76_get_field(dev, MT_XIFS_TIME_CFG, 539 MT_XIFS_TIME_CFG_OFDM_SIFS); 540 541 ackto = slottime + sifs; 542 mt76_rmw_field(dev, MT_TX_TIMEOUT_CFG, 543 MT_TX_TIMEOUT_CFG_ACKTO, ackto); 544 } 545 EXPORT_SYMBOL_GPL(mt76x02_set_tx_ackto); 546 547 void mt76x02_set_coverage_class(struct ieee80211_hw *hw, 548 s16 coverage_class) 549 { 550 struct mt76x02_dev *dev = hw->priv; 551 552 mutex_lock(&dev->mt76.mutex); 553 dev->coverage_class = coverage_class; 554 mt76x02_set_tx_ackto(dev); 555 mutex_unlock(&dev->mt76.mutex); 556 } 557 EXPORT_SYMBOL_GPL(mt76x02_set_coverage_class); 558 559 int mt76x02_set_rts_threshold(struct ieee80211_hw *hw, u32 val) 560 { 561 struct mt76x02_dev *dev = hw->priv; 562 563 if (val != ~0 && val > 0xffff) 564 return -EINVAL; 565 566 mutex_lock(&dev->mt76.mutex); 567 mt76x02_mac_set_rts_thresh(dev, val); 568 mutex_unlock(&dev->mt76.mutex); 569 570 return 0; 571 } 572 EXPORT_SYMBOL_GPL(mt76x02_set_rts_threshold); 573 574 void mt76x02_sta_rate_tbl_update(struct ieee80211_hw *hw, 575 struct ieee80211_vif *vif, 576 struct ieee80211_sta *sta) 577 { 578 struct mt76x02_dev *dev = hw->priv; 579 struct mt76x02_sta *msta = (struct mt76x02_sta *)sta->drv_priv; 580 struct ieee80211_sta_rates *rates = rcu_dereference(sta->rates); 581 struct ieee80211_tx_rate rate = {}; 582 583 if (!rates) 584 return; 585 586 rate.idx = rates->rate[0].idx; 587 rate.flags = rates->rate[0].flags; 588 mt76x02_mac_wcid_set_rate(dev, &msta->wcid, &rate); 589 } 590 EXPORT_SYMBOL_GPL(mt76x02_sta_rate_tbl_update); 591 592 void mt76x02_remove_hdr_pad(struct sk_buff *skb, int len) 593 { 594 int hdrlen; 595 596 if (!len) 597 return; 598 599 hdrlen = ieee80211_get_hdrlen_from_skb(skb); 600 memmove(skb->data + len, skb->data, hdrlen); 601 skb_pull(skb, len); 602 } 603 EXPORT_SYMBOL_GPL(mt76x02_remove_hdr_pad); 604 605 void mt76x02_sw_scan_complete(struct ieee80211_hw *hw, 606 struct ieee80211_vif *vif) 607 { 608 struct mt76x02_dev *dev = hw->priv; 609 610 clear_bit(MT76_SCANNING, &dev->mt76.state); 611 if (dev->cal.gain_init_done) { 612 /* Restore AGC gain and resume calibration after scanning. */ 613 dev->cal.low_gain = -1; 614 ieee80211_queue_delayed_work(hw, &dev->cal_work, 0); 615 } 616 } 617 EXPORT_SYMBOL_GPL(mt76x02_sw_scan_complete); 618 619 void mt76x02_sta_ps(struct mt76_dev *mdev, struct ieee80211_sta *sta, 620 bool ps) 621 { 622 struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76); 623 struct mt76x02_sta *msta = (struct mt76x02_sta *)sta->drv_priv; 624 int idx = msta->wcid.idx; 625 626 mt76_stop_tx_queues(&dev->mt76, sta, true); 627 if (mt76_is_mmio(dev)) 628 mt76x02_mac_wcid_set_drop(dev, idx, ps); 629 } 630 EXPORT_SYMBOL_GPL(mt76x02_sta_ps); 631 632 void mt76x02_bss_info_changed(struct ieee80211_hw *hw, 633 struct ieee80211_vif *vif, 634 struct ieee80211_bss_conf *info, 635 u32 changed) 636 { 637 struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv; 638 struct mt76x02_dev *dev = hw->priv; 639 640 mutex_lock(&dev->mt76.mutex); 641 642 if (changed & BSS_CHANGED_BSSID) 643 mt76x02_mac_set_bssid(dev, mvif->idx, info->bssid); 644 645 if (changed & BSS_CHANGED_HT || changed & BSS_CHANGED_ERP_CTS_PROT) 646 mt76x02_mac_set_tx_protection(dev, info->use_cts_prot, 647 info->ht_operation_mode); 648 649 if (changed & BSS_CHANGED_BEACON_INT) { 650 mt76_rmw_field(dev, MT_BEACON_TIME_CFG, 651 MT_BEACON_TIME_CFG_INTVAL, 652 info->beacon_int << 4); 653 dev->mt76.beacon_int = info->beacon_int; 654 } 655 656 if (changed & BSS_CHANGED_BEACON_ENABLED) 657 mt76x02_mac_set_beacon_enable(dev, vif, info->enable_beacon); 658 659 if (changed & BSS_CHANGED_ERP_PREAMBLE) 660 mt76x02_mac_set_short_preamble(dev, info->use_short_preamble); 661 662 if (changed & BSS_CHANGED_ERP_SLOT) { 663 int slottime = info->use_short_slot ? 9 : 20; 664 665 dev->slottime = slottime; 666 mt76x02_set_tx_ackto(dev); 667 } 668 669 mutex_unlock(&dev->mt76.mutex); 670 } 671 EXPORT_SYMBOL_GPL(mt76x02_bss_info_changed); 672 673 void mt76x02_config_mac_addr_list(struct mt76x02_dev *dev) 674 { 675 struct ieee80211_hw *hw = mt76_hw(dev); 676 struct wiphy *wiphy = hw->wiphy; 677 int i; 678 679 for (i = 0; i < ARRAY_SIZE(dev->macaddr_list); i++) { 680 u8 *addr = dev->macaddr_list[i].addr; 681 682 memcpy(addr, dev->mt76.macaddr, ETH_ALEN); 683 684 if (!i) 685 continue; 686 687 addr[0] |= BIT(1); 688 addr[0] ^= ((i - 1) << 2); 689 } 690 wiphy->addresses = dev->macaddr_list; 691 wiphy->n_addresses = ARRAY_SIZE(dev->macaddr_list); 692 } 693 EXPORT_SYMBOL_GPL(mt76x02_config_mac_addr_list); 694 695 MODULE_LICENSE("Dual BSD/GPL"); 696