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 17struct 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}; 31EXPORT_SYMBOL_GPL(mt76x02_rates); 32 33static 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 49static 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 65static 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 79static 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 89static void 90mt76x02_led_set_config(struct mt76_phy *mphy, u8 delay_on, u8 delay_off) 91{ 92 struct mt76x02_dev *dev = container_of(mphy->dev, struct mt76x02_dev, 93 mt76); 94 u32 val; 95 96 val = FIELD_PREP(MT_LED_STATUS_DURATION, 0xff) | 97 FIELD_PREP(MT_LED_STATUS_OFF, delay_off) | 98 FIELD_PREP(MT_LED_STATUS_ON, delay_on); 99 100 mt76_wr(dev, MT_LED_S0(mphy->leds.pin), val); 101 mt76_wr(dev, MT_LED_S1(mphy->leds.pin), val); 102 103 val = MT_LED_CTRL_REPLAY(mphy->leds.pin) | 104 MT_LED_CTRL_KICK(mphy->leds.pin); 105 if (mphy->leds.al) 106 val |= MT_LED_CTRL_POLARITY(mphy->leds.pin); 107 mt76_wr(dev, MT_LED_CTRL, val); 108} 109 110static int 111mt76x02_led_set_blink(struct led_classdev *led_cdev, 112 unsigned long *delay_on, 113 unsigned long *delay_off) 114{ 115 struct mt76_phy *mphy = container_of(led_cdev, struct mt76_phy, 116 leds.cdev); 117 u8 delta_on, delta_off; 118 119 delta_off = max_t(u8, *delay_off / 10, 1); 120 delta_on = max_t(u8, *delay_on / 10, 1); 121 122 mt76x02_led_set_config(mphy, delta_on, delta_off); 123 124 return 0; 125} 126 127static void 128mt76x02_led_set_brightness(struct led_classdev *led_cdev, 129 enum led_brightness brightness) 130{ 131 struct mt76_phy *mphy = container_of(led_cdev, struct mt76_phy, 132 leds.cdev); 133 134 if (!brightness) 135 mt76x02_led_set_config(mphy, 0, 0xff); 136 else 137 mt76x02_led_set_config(mphy, 0xff, 0); 138} 139 140int mt76x02_init_device(struct mt76x02_dev *dev) 141{ 142 struct ieee80211_hw *hw = mt76_hw(dev); 143 struct wiphy *wiphy = hw->wiphy; 144 145 INIT_DELAYED_WORK(&dev->mphy.mac_work, mt76x02_mac_work); 146 147 hw->queues = 4; 148 hw->max_rates = 1; 149 hw->max_report_rates = 7; 150 hw->max_rate_tries = 1; 151 hw->extra_tx_headroom = 2; 152 153 if (mt76_is_usb(&dev->mt76)) { 154 hw->extra_tx_headroom += sizeof(struct mt76x02_txwi) + 155 MT_DMA_HDR_LEN; 156 wiphy->iface_combinations = mt76x02u_if_comb; 157 wiphy->n_iface_combinations = ARRAY_SIZE(mt76x02u_if_comb); 158 } else { 159 INIT_DELAYED_WORK(&dev->wdt_work, mt76x02_wdt_work); 160 161 mt76x02_dfs_init_detector(dev); 162 163 wiphy->reg_notifier = mt76x02_regd_notifier; 164 wiphy->iface_combinations = mt76x02_if_comb; 165 wiphy->n_iface_combinations = ARRAY_SIZE(mt76x02_if_comb); 166 167 /* init led callbacks */ 168 if (IS_ENABLED(CONFIG_MT76_LEDS)) { 169 dev->mphy.leds.cdev.brightness_set = 170 mt76x02_led_set_brightness; 171 dev->mphy.leds.cdev.blink_set = mt76x02_led_set_blink; 172 } 173 } 174 175 wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_VHT_IBSS); 176 177 hw->sta_data_size = sizeof(struct mt76x02_sta); 178 hw->vif_data_size = sizeof(struct mt76x02_vif); 179 180 ieee80211_hw_set(hw, SUPPORTS_HT_CCK_RATES); 181 ieee80211_hw_set(hw, HOST_BROADCAST_PS_BUFFERING); 182 ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR); 183 184 dev->mt76.global_wcid.idx = 255; 185 dev->mt76.global_wcid.hw_key_idx = -1; 186 dev->slottime = 9; 187 188 if (is_mt76x2(dev)) { 189 dev->mphy.sband_2g.sband.ht_cap.cap |= 190 IEEE80211_HT_CAP_LDPC_CODING; 191 dev->mphy.sband_5g.sband.ht_cap.cap |= 192 IEEE80211_HT_CAP_LDPC_CODING; 193 dev->mphy.chainmask = 0x202; 194 dev->mphy.antenna_mask = 3; 195 } else { 196 dev->mphy.chainmask = 0x101; 197 dev->mphy.antenna_mask = 1; 198 } 199 200 return 0; 201} 202EXPORT_SYMBOL_GPL(mt76x02_init_device); 203 204void 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} 236EXPORT_SYMBOL_GPL(mt76x02_configure_filter); 237 238int 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, MT76x02_N_WCIDS); 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} 265EXPORT_SYMBOL_GPL(mt76x02_sta_add); 266 267void 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} 277EXPORT_SYMBOL_GPL(mt76x02_sta_remove); 278 279static void 280mt76x02_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 mt76_wcid_init(&mvif->group_wcid); 292 293 mtxq = (struct mt76_txq *)vif->txq->drv_priv; 294 rcu_assign_pointer(dev->mt76.wcid[MT_VIF_WCID(idx)], &mvif->group_wcid); 295 mtxq->wcid = MT_VIF_WCID(idx); 296} 297 298int 299mt76x02_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) 300{ 301 struct mt76x02_dev *dev = hw->priv; 302 unsigned int idx = 0; 303 304 /* Allow to change address in HW if we create first interface. */ 305 if (!dev->mt76.vif_mask && 306 (((vif->addr[0] ^ dev->mphy.macaddr[0]) & ~GENMASK(4, 1)) || 307 memcmp(vif->addr + 1, dev->mphy.macaddr + 1, ETH_ALEN - 1))) 308 mt76x02_mac_setaddr(dev, vif->addr); 309 310 if (vif->addr[0] & BIT(1)) 311 idx = 1 + (((dev->mphy.macaddr[0] ^ vif->addr[0]) >> 2) & 7); 312 313 /* 314 * Client mode typically only has one configurable BSSID register, 315 * which is used for bssidx=0. This is linked to the MAC address. 316 * Since mac80211 allows changing interface types, and we cannot 317 * force the use of the primary MAC address for a station mode 318 * interface, we need some other way of configuring a per-interface 319 * remote BSSID. 320 * The hardware provides an AP-Client feature, where bssidx 0-7 are 321 * used for AP mode and bssidx 8-15 for client mode. 322 * We shift the station interface bss index by 8 to force the 323 * hardware to recognize the BSSID. 324 * The resulting bssidx mismatch for unicast frames is ignored by hw. 325 */ 326 if (vif->type == NL80211_IFTYPE_STATION) 327 idx += 8; 328 329 /* vif is already set or idx is 8 for AP/Mesh/... */ 330 if (dev->mt76.vif_mask & BIT_ULL(idx) || 331 (vif->type != NL80211_IFTYPE_STATION && idx > 7)) 332 return -EBUSY; 333 334 dev->mt76.vif_mask |= BIT_ULL(idx); 335 336 mt76x02_vif_init(dev, vif, idx); 337 return 0; 338} 339EXPORT_SYMBOL_GPL(mt76x02_add_interface); 340 341void mt76x02_remove_interface(struct ieee80211_hw *hw, 342 struct ieee80211_vif *vif) 343{ 344 struct mt76x02_dev *dev = hw->priv; 345 struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv; 346 347 dev->mt76.vif_mask &= ~BIT_ULL(mvif->idx); 348 rcu_assign_pointer(dev->mt76.wcid[mvif->group_wcid.idx], NULL); 349 mt76_wcid_cleanup(&dev->mt76, &mvif->group_wcid); 350} 351EXPORT_SYMBOL_GPL(mt76x02_remove_interface); 352 353int mt76x02_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 354 struct ieee80211_ampdu_params *params) 355{ 356 enum ieee80211_ampdu_mlme_action action = params->action; 357 struct ieee80211_sta *sta = params->sta; 358 struct mt76x02_dev *dev = hw->priv; 359 struct mt76x02_sta *msta = (struct mt76x02_sta *)sta->drv_priv; 360 struct ieee80211_txq *txq = sta->txq[params->tid]; 361 u16 tid = params->tid; 362 u16 ssn = params->ssn; 363 struct mt76_txq *mtxq; 364 int ret = 0; 365 366 if (!txq) 367 return -EINVAL; 368 369 mtxq = (struct mt76_txq *)txq->drv_priv; 370 371 mutex_lock(&dev->mt76.mutex); 372 switch (action) { 373 case IEEE80211_AMPDU_RX_START: 374 mt76_rx_aggr_start(&dev->mt76, &msta->wcid, tid, 375 ssn, params->buf_size); 376 mt76_set(dev, MT_WCID_ADDR(msta->wcid.idx) + 4, BIT(16 + tid)); 377 break; 378 case IEEE80211_AMPDU_RX_STOP: 379 mt76_rx_aggr_stop(&dev->mt76, &msta->wcid, tid); 380 mt76_clear(dev, MT_WCID_ADDR(msta->wcid.idx) + 4, 381 BIT(16 + tid)); 382 break; 383 case IEEE80211_AMPDU_TX_OPERATIONAL: 384 mtxq->aggr = true; 385 mtxq->send_bar = false; 386 ieee80211_send_bar(vif, sta->addr, tid, mtxq->agg_ssn); 387 break; 388 case IEEE80211_AMPDU_TX_STOP_FLUSH: 389 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 390 mtxq->aggr = false; 391 break; 392 case IEEE80211_AMPDU_TX_START: 393 mtxq->agg_ssn = IEEE80211_SN_TO_SEQ(ssn); 394 ret = IEEE80211_AMPDU_TX_START_IMMEDIATE; 395 break; 396 case IEEE80211_AMPDU_TX_STOP_CONT: 397 mtxq->aggr = false; 398 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 399 break; 400 } 401 mutex_unlock(&dev->mt76.mutex); 402 403 return ret; 404} 405EXPORT_SYMBOL_GPL(mt76x02_ampdu_action); 406 407int mt76x02_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, 408 struct ieee80211_vif *vif, struct ieee80211_sta *sta, 409 struct ieee80211_key_conf *key) 410{ 411 struct mt76x02_dev *dev = hw->priv; 412 struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv; 413 struct mt76x02_sta *msta; 414 struct mt76_wcid *wcid; 415 int idx = key->keyidx; 416 int ret; 417 418 /* fall back to sw encryption for unsupported ciphers */ 419 switch (key->cipher) { 420 case WLAN_CIPHER_SUITE_WEP40: 421 case WLAN_CIPHER_SUITE_WEP104: 422 case WLAN_CIPHER_SUITE_TKIP: 423 case WLAN_CIPHER_SUITE_CCMP: 424 break; 425 default: 426 return -EOPNOTSUPP; 427 } 428 429 /* 430 * The hardware does not support per-STA RX GTK, fall back 431 * to software mode for these. 432 */ 433 if ((vif->type == NL80211_IFTYPE_ADHOC || 434 vif->type == NL80211_IFTYPE_MESH_POINT) && 435 (key->cipher == WLAN_CIPHER_SUITE_TKIP || 436 key->cipher == WLAN_CIPHER_SUITE_CCMP) && 437 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) 438 return -EOPNOTSUPP; 439 440 /* 441 * In USB AP mode, broadcast/multicast frames are setup in beacon 442 * data registers and sent via HW beacons engine, they require to 443 * be already encrypted. 444 */ 445 if (mt76_is_usb(&dev->mt76) && 446 vif->type == NL80211_IFTYPE_AP && 447 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) 448 return -EOPNOTSUPP; 449 450 /* MT76x0 GTK offloading does not work with more than one VIF */ 451 if (is_mt76x0(dev) && !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) 452 return -EOPNOTSUPP; 453 454 msta = sta ? (struct mt76x02_sta *)sta->drv_priv : NULL; 455 wcid = msta ? &msta->wcid : &mvif->group_wcid; 456 457 if (cmd != SET_KEY) { 458 if (idx == wcid->hw_key_idx) { 459 wcid->hw_key_idx = -1; 460 wcid->sw_iv = false; 461 } 462 463 return 0; 464 } 465 466 key->hw_key_idx = wcid->idx; 467 wcid->hw_key_idx = idx; 468 if (key->flags & IEEE80211_KEY_FLAG_RX_MGMT) { 469 key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX; 470 wcid->sw_iv = true; 471 } 472 mt76_wcid_key_setup(&dev->mt76, wcid, key); 473 474 if (!msta) { 475 if (key || wcid->hw_key_idx == idx) { 476 ret = mt76x02_mac_wcid_set_key(dev, wcid->idx, key); 477 if (ret) 478 return ret; 479 } 480 481 return mt76x02_mac_shared_key_setup(dev, mvif->idx, idx, key); 482 } 483 484 return mt76x02_mac_wcid_set_key(dev, msta->wcid.idx, key); 485} 486EXPORT_SYMBOL_GPL(mt76x02_set_key); 487 488int mt76x02_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 489 unsigned int link_id, u16 queue, 490 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} 531EXPORT_SYMBOL_GPL(mt76x02_conf_tx); 532 533void 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} 549EXPORT_SYMBOL_GPL(mt76x02_set_tx_ackto); 550 551void 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} 561EXPORT_SYMBOL_GPL(mt76x02_set_coverage_class); 562 563int 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} 576EXPORT_SYMBOL_GPL(mt76x02_set_rts_threshold); 577 578void 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} 594EXPORT_SYMBOL_GPL(mt76x02_sta_rate_tbl_update); 595 596void 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} 607EXPORT_SYMBOL_GPL(mt76x02_remove_hdr_pad); 608 609void 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} 621EXPORT_SYMBOL_GPL(mt76x02_sw_scan_complete); 622 623void 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} 634EXPORT_SYMBOL_GPL(mt76x02_sta_ps); 635 636void mt76x02_bss_info_changed(struct ieee80211_hw *hw, 637 struct ieee80211_vif *vif, 638 struct ieee80211_bss_conf *info, 639 u64 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} 675EXPORT_SYMBOL_GPL(mt76x02_bss_info_changed); 676 677void 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} 697EXPORT_SYMBOL_GPL(mt76x02_config_mac_addr_list); 698 699MODULE_DESCRIPTION("MediaTek MT76x02 helpers"); 700MODULE_LICENSE("Dual BSD/GPL"); 701