701 lines · c
1// SPDX-License-Identifier: ISC2/*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_MESH41 BIT(NL80211_IFTYPE_MESH_POINT) |42#endif43 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_MESH57 BIT(NL80211_IFTYPE_MESH_POINT) |58#endif59 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 void90mt76x02_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 int111mt76x02_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 void128mt76x02_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 else137 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 void280mt76x02_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 298int299mt76x02_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 cannot317 * force the use of the primary MAC address for a station mode318 * interface, we need some other way of configuring a per-interface319 * remote BSSID.320 * The hardware provides an AP-Client feature, where bssidx 0-7 are321 * used for AP mode and bssidx 8-15 for client mode.322 * We shift the station interface bss index by 8 to force the323 * 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 back431 * 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 beacon442 * data registers and sent via HW beacons engine, they require to443 * 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