1 /* 2 * Copyright (C) 2018 Stanislaw Gruszka <stf_xl@wp.pl> 3 * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name> 4 * 5 * Permission to use, copy, modify, and/or distribute this software for any 6 * purpose with or without fee is hereby granted, provided that the above 7 * copyright notice and this permission notice appear in all copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16 */ 17 18 #include <linux/module.h> 19 #include "mt76x02.h" 20 21 #define CCK_RATE(_idx, _rate) { \ 22 .bitrate = _rate, \ 23 .flags = IEEE80211_RATE_SHORT_PREAMBLE, \ 24 .hw_value = (MT_PHY_TYPE_CCK << 8) | _idx, \ 25 .hw_value_short = (MT_PHY_TYPE_CCK << 8) | (8 + _idx), \ 26 } 27 28 #define OFDM_RATE(_idx, _rate) { \ 29 .bitrate = _rate, \ 30 .hw_value = (MT_PHY_TYPE_OFDM << 8) | _idx, \ 31 .hw_value_short = (MT_PHY_TYPE_OFDM << 8) | _idx, \ 32 } 33 34 struct ieee80211_rate mt76x02_rates[] = { 35 CCK_RATE(0, 10), 36 CCK_RATE(1, 20), 37 CCK_RATE(2, 55), 38 CCK_RATE(3, 110), 39 OFDM_RATE(0, 60), 40 OFDM_RATE(1, 90), 41 OFDM_RATE(2, 120), 42 OFDM_RATE(3, 180), 43 OFDM_RATE(4, 240), 44 OFDM_RATE(5, 360), 45 OFDM_RATE(6, 480), 46 OFDM_RATE(7, 540), 47 }; 48 EXPORT_SYMBOL_GPL(mt76x02_rates); 49 50 static const struct ieee80211_iface_limit mt76x02_if_limits[] = { 51 { 52 .max = 1, 53 .types = BIT(NL80211_IFTYPE_ADHOC) 54 }, { 55 .max = 8, 56 .types = BIT(NL80211_IFTYPE_STATION) | 57 #ifdef CONFIG_MAC80211_MESH 58 BIT(NL80211_IFTYPE_MESH_POINT) | 59 #endif 60 BIT(NL80211_IFTYPE_AP) 61 }, 62 }; 63 64 static const struct ieee80211_iface_combination mt76x02_if_comb[] = { 65 { 66 .limits = mt76x02_if_limits, 67 .n_limits = ARRAY_SIZE(mt76x02_if_limits), 68 .max_interfaces = 8, 69 .num_different_channels = 1, 70 .beacon_int_infra_match = true, 71 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) | 72 BIT(NL80211_CHAN_WIDTH_20) | 73 BIT(NL80211_CHAN_WIDTH_40) | 74 BIT(NL80211_CHAN_WIDTH_80), 75 } 76 }; 77 78 static void 79 mt76x02_led_set_config(struct mt76_dev *mdev, u8 delay_on, 80 u8 delay_off) 81 { 82 struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, 83 mt76); 84 u32 val; 85 86 val = MT_LED_STATUS_DURATION(0xff) | 87 MT_LED_STATUS_OFF(delay_off) | 88 MT_LED_STATUS_ON(delay_on); 89 90 mt76_wr(dev, MT_LED_S0(mdev->led_pin), val); 91 mt76_wr(dev, MT_LED_S1(mdev->led_pin), val); 92 93 val = MT_LED_CTRL_REPLAY(mdev->led_pin) | 94 MT_LED_CTRL_KICK(mdev->led_pin); 95 if (mdev->led_al) 96 val |= MT_LED_CTRL_POLARITY(mdev->led_pin); 97 mt76_wr(dev, MT_LED_CTRL, val); 98 } 99 100 static int 101 mt76x02_led_set_blink(struct led_classdev *led_cdev, 102 unsigned long *delay_on, 103 unsigned long *delay_off) 104 { 105 struct mt76_dev *mdev = container_of(led_cdev, struct mt76_dev, 106 led_cdev); 107 u8 delta_on, delta_off; 108 109 delta_off = max_t(u8, *delay_off / 10, 1); 110 delta_on = max_t(u8, *delay_on / 10, 1); 111 112 mt76x02_led_set_config(mdev, delta_on, delta_off); 113 114 return 0; 115 } 116 117 static void 118 mt76x02_led_set_brightness(struct led_classdev *led_cdev, 119 enum led_brightness brightness) 120 { 121 struct mt76_dev *mdev = container_of(led_cdev, struct mt76_dev, 122 led_cdev); 123 124 if (!brightness) 125 mt76x02_led_set_config(mdev, 0, 0xff); 126 else 127 mt76x02_led_set_config(mdev, 0xff, 0); 128 } 129 130 void mt76x02_init_device(struct mt76x02_dev *dev) 131 { 132 struct ieee80211_hw *hw = mt76_hw(dev); 133 struct wiphy *wiphy = hw->wiphy; 134 135 INIT_DELAYED_WORK(&dev->mt76.mac_work, mt76x02_mac_work); 136 137 hw->queues = 4; 138 hw->max_rates = 1; 139 hw->max_report_rates = 7; 140 hw->max_rate_tries = 1; 141 hw->extra_tx_headroom = 2; 142 143 wiphy->interface_modes = 144 BIT(NL80211_IFTYPE_STATION) | 145 BIT(NL80211_IFTYPE_AP) | 146 #ifdef CONFIG_MAC80211_MESH 147 BIT(NL80211_IFTYPE_MESH_POINT) | 148 #endif 149 BIT(NL80211_IFTYPE_ADHOC); 150 151 if (mt76_is_usb(dev)) { 152 hw->extra_tx_headroom += sizeof(struct mt76x02_txwi) + 153 MT_DMA_HDR_LEN; 154 } else { 155 INIT_DELAYED_WORK(&dev->wdt_work, mt76x02_wdt_work); 156 157 mt76x02_dfs_init_detector(dev); 158 159 wiphy->reg_notifier = mt76x02_regd_notifier; 160 wiphy->iface_combinations = mt76x02_if_comb; 161 wiphy->n_iface_combinations = ARRAY_SIZE(mt76x02_if_comb); 162 wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; 163 164 /* init led callbacks */ 165 if (IS_ENABLED(CONFIG_MT76_LEDS)) { 166 dev->mt76.led_cdev.brightness_set = 167 mt76x02_led_set_brightness; 168 dev->mt76.led_cdev.blink_set = mt76x02_led_set_blink; 169 } 170 } 171 172 wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_VHT_IBSS); 173 174 hw->sta_data_size = sizeof(struct mt76x02_sta); 175 hw->vif_data_size = sizeof(struct mt76x02_vif); 176 177 ieee80211_hw_set(hw, SUPPORTS_HT_CCK_RATES); 178 ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER); 179 180 dev->mt76.global_wcid.idx = 255; 181 dev->mt76.global_wcid.hw_key_idx = -1; 182 dev->slottime = 9; 183 184 if (is_mt76x2(dev)) { 185 dev->mt76.sband_2g.sband.ht_cap.cap |= 186 IEEE80211_HT_CAP_LDPC_CODING; 187 dev->mt76.sband_5g.sband.ht_cap.cap |= 188 IEEE80211_HT_CAP_LDPC_CODING; 189 dev->mt76.chainmask = 0x202; 190 dev->mt76.antenna_mask = 3; 191 } else { 192 dev->mt76.chainmask = 0x101; 193 dev->mt76.antenna_mask = 1; 194 } 195 } 196 EXPORT_SYMBOL_GPL(mt76x02_init_device); 197 198 void mt76x02_configure_filter(struct ieee80211_hw *hw, 199 unsigned int changed_flags, 200 unsigned int *total_flags, u64 multicast) 201 { 202 struct mt76x02_dev *dev = hw->priv; 203 u32 flags = 0; 204 205 #define MT76_FILTER(_flag, _hw) do { \ 206 flags |= *total_flags & FIF_##_flag; \ 207 dev->mt76.rxfilter &= ~(_hw); \ 208 dev->mt76.rxfilter |= !(flags & FIF_##_flag) * (_hw); \ 209 } while (0) 210 211 mutex_lock(&dev->mt76.mutex); 212 213 dev->mt76.rxfilter &= ~MT_RX_FILTR_CFG_OTHER_BSS; 214 215 MT76_FILTER(FCSFAIL, MT_RX_FILTR_CFG_CRC_ERR); 216 MT76_FILTER(PLCPFAIL, MT_RX_FILTR_CFG_PHY_ERR); 217 MT76_FILTER(CONTROL, MT_RX_FILTR_CFG_ACK | 218 MT_RX_FILTR_CFG_CTS | 219 MT_RX_FILTR_CFG_CFEND | 220 MT_RX_FILTR_CFG_CFACK | 221 MT_RX_FILTR_CFG_BA | 222 MT_RX_FILTR_CFG_CTRL_RSV); 223 MT76_FILTER(PSPOLL, MT_RX_FILTR_CFG_PSPOLL); 224 225 *total_flags = flags; 226 mt76_wr(dev, MT_RX_FILTR_CFG, dev->mt76.rxfilter); 227 228 mutex_unlock(&dev->mt76.mutex); 229 } 230 EXPORT_SYMBOL_GPL(mt76x02_configure_filter); 231 232 int mt76x02_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif, 233 struct ieee80211_sta *sta) 234 { 235 struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76); 236 struct mt76x02_sta *msta = (struct mt76x02_sta *)sta->drv_priv; 237 struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv; 238 int idx = 0; 239 240 memset(msta, 0, sizeof(*msta)); 241 242 idx = mt76_wcid_alloc(dev->mt76.wcid_mask, ARRAY_SIZE(dev->mt76.wcid)); 243 if (idx < 0) 244 return -ENOSPC; 245 246 msta->vif = mvif; 247 msta->wcid.sta = 1; 248 msta->wcid.idx = idx; 249 msta->wcid.hw_key_idx = -1; 250 mt76x02_mac_wcid_setup(dev, idx, mvif->idx, sta->addr); 251 mt76x02_mac_wcid_set_drop(dev, idx, false); 252 253 if (vif->type == NL80211_IFTYPE_AP) 254 set_bit(MT_WCID_FLAG_CHECK_PS, &msta->wcid.flags); 255 256 return 0; 257 } 258 EXPORT_SYMBOL_GPL(mt76x02_sta_add); 259 260 void mt76x02_sta_remove(struct mt76_dev *mdev, struct ieee80211_vif *vif, 261 struct ieee80211_sta *sta) 262 { 263 struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76); 264 struct mt76_wcid *wcid = (struct mt76_wcid *)sta->drv_priv; 265 int idx = wcid->idx; 266 267 mt76x02_mac_wcid_set_drop(dev, idx, true); 268 mt76x02_mac_wcid_setup(dev, idx, 0, NULL); 269 } 270 EXPORT_SYMBOL_GPL(mt76x02_sta_remove); 271 272 static void 273 mt76x02_vif_init(struct mt76x02_dev *dev, struct ieee80211_vif *vif, 274 unsigned int idx) 275 { 276 struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv; 277 struct mt76_txq *mtxq; 278 279 memset(mvif, 0, sizeof(*mvif)); 280 281 mvif->idx = idx; 282 mvif->group_wcid.idx = MT_VIF_WCID(idx); 283 mvif->group_wcid.hw_key_idx = -1; 284 mtxq = (struct mt76_txq *) vif->txq->drv_priv; 285 mtxq->wcid = &mvif->group_wcid; 286 287 mt76_txq_init(&dev->mt76, vif->txq); 288 } 289 290 int 291 mt76x02_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) 292 { 293 struct mt76x02_dev *dev = hw->priv; 294 unsigned int idx = 0; 295 296 /* Allow to change address in HW if we create first interface. */ 297 if (!dev->vif_mask && 298 (((vif->addr[0] ^ dev->mt76.macaddr[0]) & ~GENMASK(4, 1)) || 299 memcmp(vif->addr + 1, dev->mt76.macaddr + 1, ETH_ALEN - 1))) 300 mt76x02_mac_setaddr(dev, vif->addr); 301 302 if (vif->addr[0] & BIT(1)) 303 idx = 1 + (((dev->mt76.macaddr[0] ^ vif->addr[0]) >> 2) & 7); 304 305 /* 306 * Client mode typically only has one configurable BSSID register, 307 * which is used for bssidx=0. This is linked to the MAC address. 308 * Since mac80211 allows changing interface types, and we cannot 309 * force the use of the primary MAC address for a station mode 310 * interface, we need some other way of configuring a per-interface 311 * remote BSSID. 312 * The hardware provides an AP-Client feature, where bssidx 0-7 are 313 * used for AP mode and bssidx 8-15 for client mode. 314 * We shift the station interface bss index by 8 to force the 315 * hardware to recognize the BSSID. 316 * The resulting bssidx mismatch for unicast frames is ignored by hw. 317 */ 318 if (vif->type == NL80211_IFTYPE_STATION) 319 idx += 8; 320 321 if (dev->vif_mask & BIT(idx)) 322 return -EBUSY; 323 324 dev->vif_mask |= BIT(idx); 325 326 mt76x02_vif_init(dev, vif, idx); 327 return 0; 328 } 329 EXPORT_SYMBOL_GPL(mt76x02_add_interface); 330 331 void mt76x02_remove_interface(struct ieee80211_hw *hw, 332 struct ieee80211_vif *vif) 333 { 334 struct mt76x02_dev *dev = hw->priv; 335 struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv; 336 337 mt76_txq_remove(&dev->mt76, vif->txq); 338 dev->vif_mask &= ~BIT(mvif->idx); 339 } 340 EXPORT_SYMBOL_GPL(mt76x02_remove_interface); 341 342 int mt76x02_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 343 struct ieee80211_ampdu_params *params) 344 { 345 enum ieee80211_ampdu_mlme_action action = params->action; 346 struct ieee80211_sta *sta = params->sta; 347 struct mt76x02_dev *dev = hw->priv; 348 struct mt76x02_sta *msta = (struct mt76x02_sta *) sta->drv_priv; 349 struct ieee80211_txq *txq = sta->txq[params->tid]; 350 u16 tid = params->tid; 351 u16 *ssn = ¶ms->ssn; 352 struct mt76_txq *mtxq; 353 354 if (!txq) 355 return -EINVAL; 356 357 mtxq = (struct mt76_txq *)txq->drv_priv; 358 359 switch (action) { 360 case IEEE80211_AMPDU_RX_START: 361 mt76_rx_aggr_start(&dev->mt76, &msta->wcid, tid, 362 *ssn, params->buf_size); 363 mt76_set(dev, MT_WCID_ADDR(msta->wcid.idx) + 4, BIT(16 + tid)); 364 break; 365 case IEEE80211_AMPDU_RX_STOP: 366 mt76_rx_aggr_stop(&dev->mt76, &msta->wcid, tid); 367 mt76_clear(dev, MT_WCID_ADDR(msta->wcid.idx) + 4, 368 BIT(16 + tid)); 369 break; 370 case IEEE80211_AMPDU_TX_OPERATIONAL: 371 mtxq->aggr = true; 372 mtxq->send_bar = false; 373 ieee80211_send_bar(vif, sta->addr, tid, mtxq->agg_ssn); 374 break; 375 case IEEE80211_AMPDU_TX_STOP_FLUSH: 376 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 377 mtxq->aggr = false; 378 ieee80211_send_bar(vif, sta->addr, tid, mtxq->agg_ssn); 379 break; 380 case IEEE80211_AMPDU_TX_START: 381 mtxq->agg_ssn = IEEE80211_SN_TO_SEQ(*ssn); 382 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid); 383 break; 384 case IEEE80211_AMPDU_TX_STOP_CONT: 385 mtxq->aggr = false; 386 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 387 break; 388 } 389 390 return 0; 391 } 392 EXPORT_SYMBOL_GPL(mt76x02_ampdu_action); 393 394 int mt76x02_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, 395 struct ieee80211_vif *vif, struct ieee80211_sta *sta, 396 struct ieee80211_key_conf *key) 397 { 398 struct mt76x02_dev *dev = hw->priv; 399 struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv; 400 struct mt76x02_sta *msta; 401 struct mt76_wcid *wcid; 402 int idx = key->keyidx; 403 int ret; 404 405 /* fall back to sw encryption for unsupported ciphers */ 406 switch (key->cipher) { 407 case WLAN_CIPHER_SUITE_WEP40: 408 case WLAN_CIPHER_SUITE_WEP104: 409 case WLAN_CIPHER_SUITE_TKIP: 410 case WLAN_CIPHER_SUITE_CCMP: 411 break; 412 default: 413 return -EOPNOTSUPP; 414 } 415 416 /* 417 * The hardware does not support per-STA RX GTK, fall back 418 * to software mode for these. 419 */ 420 if ((vif->type == NL80211_IFTYPE_ADHOC || 421 vif->type == NL80211_IFTYPE_MESH_POINT) && 422 (key->cipher == WLAN_CIPHER_SUITE_TKIP || 423 key->cipher == WLAN_CIPHER_SUITE_CCMP) && 424 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) 425 return -EOPNOTSUPP; 426 427 /* 428 * In USB AP mode, broadcast/multicast frames are setup in beacon 429 * data registers and sent via HW beacons engine, they require to 430 * be already encrypted. 431 */ 432 if (mt76_is_usb(dev) && 433 vif->type == NL80211_IFTYPE_AP && 434 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) 435 return -EOPNOTSUPP; 436 437 msta = sta ? (struct mt76x02_sta *) sta->drv_priv : NULL; 438 wcid = msta ? &msta->wcid : &mvif->group_wcid; 439 440 if (cmd == SET_KEY) { 441 key->hw_key_idx = wcid->idx; 442 wcid->hw_key_idx = idx; 443 if (key->flags & IEEE80211_KEY_FLAG_RX_MGMT) { 444 key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX; 445 wcid->sw_iv = true; 446 } 447 } else { 448 if (idx == wcid->hw_key_idx) { 449 wcid->hw_key_idx = -1; 450 wcid->sw_iv = false; 451 } 452 453 key = NULL; 454 } 455 mt76_wcid_key_setup(&dev->mt76, wcid, key); 456 457 if (!msta) { 458 if (key || wcid->hw_key_idx == idx) { 459 ret = mt76x02_mac_wcid_set_key(dev, wcid->idx, key); 460 if (ret) 461 return ret; 462 } 463 464 return mt76x02_mac_shared_key_setup(dev, mvif->idx, idx, key); 465 } 466 467 return mt76x02_mac_wcid_set_key(dev, msta->wcid.idx, key); 468 } 469 EXPORT_SYMBOL_GPL(mt76x02_set_key); 470 471 int mt76x02_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 472 u16 queue, const struct ieee80211_tx_queue_params *params) 473 { 474 struct mt76x02_dev *dev = hw->priv; 475 u8 cw_min = 5, cw_max = 10, qid; 476 u32 val; 477 478 qid = dev->mt76.q_tx[queue].q->hw_idx; 479 480 if (params->cw_min) 481 cw_min = fls(params->cw_min); 482 if (params->cw_max) 483 cw_max = fls(params->cw_max); 484 485 val = FIELD_PREP(MT_EDCA_CFG_TXOP, params->txop) | 486 FIELD_PREP(MT_EDCA_CFG_AIFSN, params->aifs) | 487 FIELD_PREP(MT_EDCA_CFG_CWMIN, cw_min) | 488 FIELD_PREP(MT_EDCA_CFG_CWMAX, cw_max); 489 mt76_wr(dev, MT_EDCA_CFG_AC(qid), val); 490 491 val = mt76_rr(dev, MT_WMM_TXOP(qid)); 492 val &= ~(MT_WMM_TXOP_MASK << MT_WMM_TXOP_SHIFT(qid)); 493 val |= params->txop << MT_WMM_TXOP_SHIFT(qid); 494 mt76_wr(dev, MT_WMM_TXOP(qid), val); 495 496 val = mt76_rr(dev, MT_WMM_AIFSN); 497 val &= ~(MT_WMM_AIFSN_MASK << MT_WMM_AIFSN_SHIFT(qid)); 498 val |= params->aifs << MT_WMM_AIFSN_SHIFT(qid); 499 mt76_wr(dev, MT_WMM_AIFSN, val); 500 501 val = mt76_rr(dev, MT_WMM_CWMIN); 502 val &= ~(MT_WMM_CWMIN_MASK << MT_WMM_CWMIN_SHIFT(qid)); 503 val |= cw_min << MT_WMM_CWMIN_SHIFT(qid); 504 mt76_wr(dev, MT_WMM_CWMIN, val); 505 506 val = mt76_rr(dev, MT_WMM_CWMAX); 507 val &= ~(MT_WMM_CWMAX_MASK << MT_WMM_CWMAX_SHIFT(qid)); 508 val |= cw_max << MT_WMM_CWMAX_SHIFT(qid); 509 mt76_wr(dev, MT_WMM_CWMAX, val); 510 511 return 0; 512 } 513 EXPORT_SYMBOL_GPL(mt76x02_conf_tx); 514 515 void mt76x02_set_tx_ackto(struct mt76x02_dev *dev) 516 { 517 u8 ackto, sifs, slottime = dev->slottime; 518 519 /* As defined by IEEE 802.11-2007 17.3.8.6 */ 520 slottime += 3 * dev->coverage_class; 521 mt76_rmw_field(dev, MT_BKOFF_SLOT_CFG, 522 MT_BKOFF_SLOT_CFG_SLOTTIME, slottime); 523 524 sifs = mt76_get_field(dev, MT_XIFS_TIME_CFG, 525 MT_XIFS_TIME_CFG_OFDM_SIFS); 526 527 ackto = slottime + sifs; 528 mt76_rmw_field(dev, MT_TX_TIMEOUT_CFG, 529 MT_TX_TIMEOUT_CFG_ACKTO, ackto); 530 } 531 EXPORT_SYMBOL_GPL(mt76x02_set_tx_ackto); 532 533 void mt76x02_set_coverage_class(struct ieee80211_hw *hw, 534 s16 coverage_class) 535 { 536 struct mt76x02_dev *dev = hw->priv; 537 538 mutex_lock(&dev->mt76.mutex); 539 dev->coverage_class = coverage_class; 540 mt76x02_set_tx_ackto(dev); 541 mutex_unlock(&dev->mt76.mutex); 542 } 543 EXPORT_SYMBOL_GPL(mt76x02_set_coverage_class); 544 545 int mt76x02_set_rts_threshold(struct ieee80211_hw *hw, u32 val) 546 { 547 struct mt76x02_dev *dev = hw->priv; 548 549 if (val != ~0 && val > 0xffff) 550 return -EINVAL; 551 552 mutex_lock(&dev->mt76.mutex); 553 mt76x02_mac_set_rts_thresh(dev, val); 554 mutex_unlock(&dev->mt76.mutex); 555 556 return 0; 557 } 558 EXPORT_SYMBOL_GPL(mt76x02_set_rts_threshold); 559 560 void mt76x02_sta_rate_tbl_update(struct ieee80211_hw *hw, 561 struct ieee80211_vif *vif, 562 struct ieee80211_sta *sta) 563 { 564 struct mt76x02_dev *dev = hw->priv; 565 struct mt76x02_sta *msta = (struct mt76x02_sta *) sta->drv_priv; 566 struct ieee80211_sta_rates *rates = rcu_dereference(sta->rates); 567 struct ieee80211_tx_rate rate = {}; 568 569 if (!rates) 570 return; 571 572 rate.idx = rates->rate[0].idx; 573 rate.flags = rates->rate[0].flags; 574 mt76x02_mac_wcid_set_rate(dev, &msta->wcid, &rate); 575 } 576 EXPORT_SYMBOL_GPL(mt76x02_sta_rate_tbl_update); 577 578 void mt76x02_remove_hdr_pad(struct sk_buff *skb, int len) 579 { 580 int hdrlen; 581 582 if (!len) 583 return; 584 585 hdrlen = ieee80211_get_hdrlen_from_skb(skb); 586 memmove(skb->data + len, skb->data, hdrlen); 587 skb_pull(skb, len); 588 } 589 EXPORT_SYMBOL_GPL(mt76x02_remove_hdr_pad); 590 591 void mt76x02_sw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 592 const u8 *mac) 593 { 594 struct mt76x02_dev *dev = hw->priv; 595 596 set_bit(MT76_SCANNING, &dev->mt76.state); 597 } 598 EXPORT_SYMBOL_GPL(mt76x02_sw_scan); 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(dev)) 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