drivers/net/wireless/mediatek/mt76/mt7603/main.c

   1 // SPDX-License-Identifier: ISC
   2
   3 #include <linux/etherdevice.h>
   4 #include <linux/platform_device.h>
   5 #include <linux/pci.h>
   6 #include <linux/module.h>
   7 #include "mt7603.h"
   8 #include "mac.h"
   9 #include "eeprom.h"
  10
  11 static int
  12 mt7603_start(struct ieee80211_hw *hw)
  13 {
  14         struct mt7603_dev *dev = hw->priv;
  15
  16         mt7603_mac_reset_counters(dev);
  17         mt7603_mac_start(dev);
  18         dev->mt76.survey_time = ktime_get_boottime();
  19         set_bit(MT76_STATE_RUNNING, &dev->mt76.state);
  20         mt7603_mac_work(&dev->mt76.mac_work.work);
  21
  22         return 0;
  23 }
  24
  25 static void
  26 mt7603_stop(struct ieee80211_hw *hw)
  27 {
  28         struct mt7603_dev *dev = hw->priv;
  29
  30         clear_bit(MT76_STATE_RUNNING, &dev->mt76.state);
  31         cancel_delayed_work_sync(&dev->mt76.mac_work);
  32         mt7603_mac_stop(dev);
  33 }
  34
  35 static int
  36 mt7603_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
  37 {
  38         struct mt7603_vif *mvif = (struct mt7603_vif *)vif->drv_priv;
  39         struct mt7603_dev *dev = hw->priv;
  40         struct mt76_txq *mtxq;
  41         u8 bc_addr[ETH_ALEN];
  42         int idx;
  43         int ret = 0;
  44
  45         mutex_lock(&dev->mt76.mutex);
  46
  47         mvif->idx = ffs(~dev->vif_mask) - 1;
  48         if (mvif->idx >= MT7603_MAX_INTERFACES) {
  49                 ret = -ENOSPC;
  50                 goto out;
  51         }
  52
  53         mt76_wr(dev, MT_MAC_ADDR0(mvif->idx),
  54                 get_unaligned_le32(vif->addr));
  55         mt76_wr(dev, MT_MAC_ADDR1(mvif->idx),
  56                 (get_unaligned_le16(vif->addr + 4) |
  57                  MT_MAC_ADDR1_VALID));
  58
  59         if (vif->type == NL80211_IFTYPE_AP) {
  60                 mt76_wr(dev, MT_BSSID0(mvif->idx),
  61                         get_unaligned_le32(vif->addr));
  62                 mt76_wr(dev, MT_BSSID1(mvif->idx),
  63                         (get_unaligned_le16(vif->addr + 4) |
  64                          MT_BSSID1_VALID));
  65         }
  66
  67         idx = MT7603_WTBL_RESERVED - 1 - mvif->idx;
  68         dev->vif_mask |= BIT(mvif->idx);
  69         INIT_LIST_HEAD(&mvif->sta.poll_list);
  70         mvif->sta.wcid.idx = idx;
  71         mvif->sta.wcid.hw_key_idx = -1;
  72
  73         eth_broadcast_addr(bc_addr);
  74         mt7603_wtbl_init(dev, idx, mvif->idx, bc_addr);
  75
  76         mtxq = (struct mt76_txq *)vif->txq->drv_priv;
  77         mtxq->wcid = &mvif->sta.wcid;
  78         mt76_txq_init(&dev->mt76, vif->txq);
  79         rcu_assign_pointer(dev->mt76.wcid[idx], &mvif->sta.wcid);
  80
  81 out:
  82         mutex_unlock(&dev->mt76.mutex);
  83
  84         return ret;
  85 }
  86
  87 static void
  88 mt7603_remove_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
  89 {
  90         struct mt7603_vif *mvif = (struct mt7603_vif *)vif->drv_priv;
  91         struct mt7603_sta *msta = &mvif->sta;
  92         struct mt7603_dev *dev = hw->priv;
  93         int idx = msta->wcid.idx;
  94
  95         mt76_wr(dev, MT_MAC_ADDR0(mvif->idx), 0);
  96         mt76_wr(dev, MT_MAC_ADDR1(mvif->idx), 0);
  97         mt76_wr(dev, MT_BSSID0(mvif->idx), 0);
  98         mt76_wr(dev, MT_BSSID1(mvif->idx), 0);
  99         mt7603_beacon_set_timer(dev, mvif->idx, 0);
 100
 101         rcu_assign_pointer(dev->mt76.wcid[idx], NULL);
 102         mt76_txq_remove(&dev->mt76, vif->txq);
 103
 104         spin_lock_bh(&dev->sta_poll_lock);
 105         if (!list_empty(&msta->poll_list))
 106                 list_del_init(&msta->poll_list);
 107         spin_unlock_bh(&dev->sta_poll_lock);
 108
 109         mutex_lock(&dev->mt76.mutex);
 110         dev->vif_mask &= ~BIT(mvif->idx);
 111         mutex_unlock(&dev->mt76.mutex);
 112 }
 113
 114 void mt7603_init_edcca(struct mt7603_dev *dev)
 115 {
 116         /* Set lower signal level to -65dBm */
 117         mt76_rmw_field(dev, MT_RXTD(8), MT_RXTD_8_LOWER_SIGNAL, 0x23);
 118
 119         /* clear previous energy detect monitor results */
 120         mt76_rr(dev, MT_MIB_STAT_ED);
 121
 122         if (dev->ed_monitor)
 123                 mt76_set(dev, MT_MIB_CTL, MT_MIB_CTL_ED_TIME);
 124         else
 125                 mt76_clear(dev, MT_MIB_CTL, MT_MIB_CTL_ED_TIME);
 126
 127         dev->ed_strict_mode = 0xff;
 128         dev->ed_strong_signal = 0;
 129         dev->ed_time = ktime_get_boottime();
 130
 131         mt7603_edcca_set_strict(dev, false);
 132 }
 133
 134 static int
 135 mt7603_set_channel(struct mt7603_dev *dev, struct cfg80211_chan_def *def)
 136 {
 137         u8 *rssi_data = (u8 *)dev->mt76.eeprom.data;
 138         int idx, ret;
 139         u8 bw = MT_BW_20;
 140         bool failed = false;
 141
 142         cancel_delayed_work_sync(&dev->mt76.mac_work);
 143         tasklet_disable(&dev->mt76.pre_tbtt_tasklet);
 144
 145         mutex_lock(&dev->mt76.mutex);
 146         set_bit(MT76_RESET, &dev->mt76.state);
 147
 148         mt7603_beacon_set_timer(dev, -1, 0);
 149         mt76_set_channel(&dev->mt76);
 150         mt7603_mac_stop(dev);
 151
 152         if (def->width == NL80211_CHAN_WIDTH_40)
 153                 bw = MT_BW_40;
 154
 155         dev->mt76.chandef = *def;
 156         mt76_rmw_field(dev, MT_AGG_BWCR, MT_AGG_BWCR_BW, bw);
 157         ret = mt7603_mcu_set_channel(dev);
 158         if (ret) {
 159                 failed = true;
 160                 goto out;
 161         }
 162
 163         if (def->chan->band == NL80211_BAND_5GHZ) {
 164                 idx = 1;
 165                 rssi_data += MT_EE_RSSI_OFFSET_5G;
 166         } else {
 167                 idx = 0;
 168                 rssi_data += MT_EE_RSSI_OFFSET_2G;
 169         }
 170
 171         memcpy(dev->rssi_offset, rssi_data, sizeof(dev->rssi_offset));
 172
 173         idx |= (def->chan -
 174                 mt76_hw(dev)->wiphy->bands[def->chan->band]->channels) << 1;
 175         mt76_wr(dev, MT_WF_RMAC_CH_FREQ, idx);
 176         mt7603_mac_set_timing(dev);
 177         mt7603_mac_start(dev);
 178
 179         clear_bit(MT76_RESET, &dev->mt76.state);
 180
 181         mt76_txq_schedule_all(&dev->mt76);
 182
 183         ieee80211_queue_delayed_work(mt76_hw(dev), &dev->mt76.mac_work,
 184                                      msecs_to_jiffies(MT7603_WATCHDOG_TIME));
 185
 186         /* reset channel stats */
 187         mt76_clear(dev, MT_MIB_CTL, MT_MIB_CTL_READ_CLR_DIS);
 188         mt76_set(dev, MT_MIB_CTL,
 189                  MT_MIB_CTL_CCA_NAV_TX | MT_MIB_CTL_PSCCA_TIME);
 190         mt76_rr(dev, MT_MIB_STAT_PSCCA);
 191         mt7603_cca_stats_reset(dev);
 192
 193         dev->mt76.survey_time = ktime_get_boottime();
 194
 195         mt7603_init_edcca(dev);
 196
 197 out:
 198         if (!(mt76_hw(dev)->conf.flags & IEEE80211_CONF_OFFCHANNEL))
 199                 mt7603_beacon_set_timer(dev, -1, dev->mt76.beacon_int);
 200         mutex_unlock(&dev->mt76.mutex);
 201
 202         tasklet_enable(&dev->mt76.pre_tbtt_tasklet);
 203
 204         if (failed)
 205                 mt7603_mac_work(&dev->mt76.mac_work.work);
 206
 207         return ret;
 208 }
 209
 210 static int
 211 mt7603_config(struct ieee80211_hw *hw, u32 changed)
 212 {
 213         struct mt7603_dev *dev = hw->priv;
 214         int ret = 0;
 215
 216         if (changed & (IEEE80211_CONF_CHANGE_CHANNEL |
 217                        IEEE80211_CONF_CHANGE_POWER)) {
 218                 ieee80211_stop_queues(hw);
 219                 ret = mt7603_set_channel(dev, &hw->conf.chandef);
 220                 ieee80211_wake_queues(hw);
 221         }
 222
 223         if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
 224                 mutex_lock(&dev->mt76.mutex);
 225
 226                 if (!(hw->conf.flags & IEEE80211_CONF_MONITOR))
 227                         dev->rxfilter |= MT_WF_RFCR_DROP_OTHER_UC;
 228                 else
 229                         dev->rxfilter &= ~MT_WF_RFCR_DROP_OTHER_UC;
 230
 231                 mt76_wr(dev, MT_WF_RFCR, dev->rxfilter);
 232
 233                 mutex_unlock(&dev->mt76.mutex);
 234         }
 235
 236         return ret;
 237 }
 238
 239 static void
 240 mt7603_configure_filter(struct ieee80211_hw *hw, unsigned int changed_flags,
 241                         unsigned int *total_flags, u64 multicast)
 242 {
 243         struct mt7603_dev *dev = hw->priv;
 244         u32 flags = 0;
 245
 246 #define MT76_FILTER(_flag, _hw) do { \
 247                 flags |= *total_flags & FIF_##_flag;                    \
 248                 dev->rxfilter &= ~(_hw);                                \
 249                 dev->rxfilter |= !(flags & FIF_##_flag) * (_hw);        \
 250         } while (0)
 251
 252         dev->rxfilter &= ~(MT_WF_RFCR_DROP_OTHER_BSS |
 253                            MT_WF_RFCR_DROP_OTHER_BEACON |
 254                            MT_WF_RFCR_DROP_FRAME_REPORT |
 255                            MT_WF_RFCR_DROP_PROBEREQ |
 256                            MT_WF_RFCR_DROP_MCAST_FILTERED |
 257                            MT_WF_RFCR_DROP_MCAST |
 258                            MT_WF_RFCR_DROP_BCAST |
 259                            MT_WF_RFCR_DROP_DUPLICATE |
 260                            MT_WF_RFCR_DROP_A2_BSSID |
 261                            MT_WF_RFCR_DROP_UNWANTED_CTL |
 262                            MT_WF_RFCR_DROP_STBC_MULTI);
 263
 264         MT76_FILTER(OTHER_BSS, MT_WF_RFCR_DROP_OTHER_TIM |
 265                                MT_WF_RFCR_DROP_A3_MAC |
 266                                MT_WF_RFCR_DROP_A3_BSSID);
 267
 268         MT76_FILTER(FCSFAIL, MT_WF_RFCR_DROP_FCSFAIL);
 269
 270         MT76_FILTER(CONTROL, MT_WF_RFCR_DROP_CTS |
 271                              MT_WF_RFCR_DROP_RTS |
 272                              MT_WF_RFCR_DROP_CTL_RSV |
 273                              MT_WF_RFCR_DROP_NDPA);
 274
 275         *total_flags = flags;
 276         mt76_wr(dev, MT_WF_RFCR, dev->rxfilter);
 277 }
 278
 279 static void
 280 mt7603_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 281                         struct ieee80211_bss_conf *info, u32 changed)
 282 {
 283         struct mt7603_dev *dev = hw->priv;
 284         struct mt7603_vif *mvif = (struct mt7603_vif *)vif->drv_priv;
 285
 286         mutex_lock(&dev->mt76.mutex);
 287
 288         if (changed & (BSS_CHANGED_ASSOC | BSS_CHANGED_BSSID)) {
 289                 if (info->assoc || info->ibss_joined) {
 290                         mt76_wr(dev, MT_BSSID0(mvif->idx),
 291                                 get_unaligned_le32(info->bssid));
 292                         mt76_wr(dev, MT_BSSID1(mvif->idx),
 293                                 (get_unaligned_le16(info->bssid + 4) |
 294                                  MT_BSSID1_VALID));
 295                 } else {
 296                         mt76_wr(dev, MT_BSSID0(mvif->idx), 0);
 297                         mt76_wr(dev, MT_BSSID1(mvif->idx), 0);
 298                 }
 299         }
 300
 301         if (changed & BSS_CHANGED_ERP_SLOT) {
 302                 int slottime = info->use_short_slot ? 9 : 20;
 303
 304                 if (slottime != dev->slottime) {
 305                         dev->slottime = slottime;
 306                         mt7603_mac_set_timing(dev);
 307                 }
 308         }
 309
 310         if (changed & (BSS_CHANGED_BEACON_ENABLED | BSS_CHANGED_BEACON_INT)) {
 311                 int beacon_int = !!info->enable_beacon * info->beacon_int;
 312
 313                 tasklet_disable(&dev->mt76.pre_tbtt_tasklet);
 314                 mt7603_beacon_set_timer(dev, mvif->idx, beacon_int);
 315                 tasklet_enable(&dev->mt76.pre_tbtt_tasklet);
 316         }
 317
 318         mutex_unlock(&dev->mt76.mutex);
 319 }
 320
 321 int
 322 mt7603_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif,
 323                struct ieee80211_sta *sta)
 324 {
 325         struct mt7603_dev *dev = container_of(mdev, struct mt7603_dev, mt76);
 326         struct mt7603_sta *msta = (struct mt7603_sta *)sta->drv_priv;
 327         struct mt7603_vif *mvif = (struct mt7603_vif *)vif->drv_priv;
 328         int idx;
 329         int ret = 0;
 330
 331         idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7603_WTBL_STA - 1);
 332         if (idx < 0)
 333                 return -ENOSPC;
 334
 335         INIT_LIST_HEAD(&msta->poll_list);
 336         __skb_queue_head_init(&msta->psq);
 337         msta->ps = ~0;
 338         msta->smps = ~0;
 339         msta->wcid.sta = 1;
 340         msta->wcid.idx = idx;
 341         mt7603_wtbl_init(dev, idx, mvif->idx, sta->addr);
 342         mt7603_wtbl_set_ps(dev, msta, false);
 343
 344         if (vif->type == NL80211_IFTYPE_AP)
 345                 set_bit(MT_WCID_FLAG_CHECK_PS, &msta->wcid.flags);
 346
 347         return ret;
 348 }
 349
 350 void
 351 mt7603_sta_assoc(struct mt76_dev *mdev, struct ieee80211_vif *vif,
 352                  struct ieee80211_sta *sta)
 353 {
 354         struct mt7603_dev *dev = container_of(mdev, struct mt7603_dev, mt76);
 355
 356         mt7603_wtbl_update_cap(dev, sta);
 357 }
 358
 359 void
 360 mt7603_sta_remove(struct mt76_dev *mdev, struct ieee80211_vif *vif,
 361                   struct ieee80211_sta *sta)
 362 {
 363         struct mt7603_dev *dev = container_of(mdev, struct mt7603_dev, mt76);
 364         struct mt7603_sta *msta = (struct mt7603_sta *)sta->drv_priv;
 365         struct mt76_wcid *wcid = (struct mt76_wcid *)sta->drv_priv;
 366
 367         spin_lock_bh(&dev->ps_lock);
 368         __skb_queue_purge(&msta->psq);
 369         mt7603_filter_tx(dev, wcid->idx, true);
 370         spin_unlock_bh(&dev->ps_lock);
 371
 372         spin_lock_bh(&dev->sta_poll_lock);
 373         if (!list_empty(&msta->poll_list))
 374                 list_del_init(&msta->poll_list);
 375         spin_unlock_bh(&dev->sta_poll_lock);
 376
 377         mt7603_wtbl_clear(dev, wcid->idx);
 378 }
 379
 380 static void
 381 mt7603_ps_tx_list(struct mt7603_dev *dev, struct sk_buff_head *list)
 382 {
 383         struct sk_buff *skb;
 384
 385         while ((skb = __skb_dequeue(list)) != NULL)
 386                 mt76_tx_queue_skb_raw(dev, skb_get_queue_mapping(skb),
 387                                       skb, 0);
 388 }
 389
 390 void
 391 mt7603_sta_ps(struct mt76_dev *mdev, struct ieee80211_sta *sta, bool ps)
 392 {
 393         struct mt7603_dev *dev = container_of(mdev, struct mt7603_dev, mt76);
 394         struct mt7603_sta *msta = (struct mt7603_sta *)sta->drv_priv;
 395         struct sk_buff_head list;
 396
 397         mt76_stop_tx_queues(&dev->mt76, sta, true);
 398         mt7603_wtbl_set_ps(dev, msta, ps);
 399         if (ps)
 400                 return;
 401
 402         __skb_queue_head_init(&list);
 403
 404         spin_lock_bh(&dev->ps_lock);
 405         skb_queue_splice_tail_init(&msta->psq, &list);
 406         spin_unlock_bh(&dev->ps_lock);
 407
 408         mt7603_ps_tx_list(dev, &list);
 409 }
 410
 411 static void
 412 mt7603_ps_set_more_data(struct sk_buff *skb)
 413 {
 414         struct ieee80211_hdr *hdr;
 415
 416         hdr = (struct ieee80211_hdr *)&skb->data[MT_TXD_SIZE];
 417         hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_MOREDATA);
 418 }
 419
 420 static void
 421 mt7603_release_buffered_frames(struct ieee80211_hw *hw,
 422                                struct ieee80211_sta *sta,
 423                                u16 tids, int nframes,
 424                                enum ieee80211_frame_release_type reason,
 425                                bool more_data)
 426 {
 427         struct mt7603_dev *dev = hw->priv;
 428         struct mt7603_sta *msta = (struct mt7603_sta *)sta->drv_priv;
 429         struct sk_buff_head list;
 430         struct sk_buff *skb, *tmp;
 431
 432         __skb_queue_head_init(&list);
 433
 434         mt7603_wtbl_set_ps(dev, msta, false);
 435
 436         spin_lock_bh(&dev->ps_lock);
 437         skb_queue_walk_safe(&msta->psq, skb, tmp) {
 438                 if (!nframes)
 439                         break;
 440
 441                 if (!(tids & BIT(skb->priority)))
 442                         continue;
 443
 444                 skb_set_queue_mapping(skb, MT_TXQ_PSD);
 445                 __skb_unlink(skb, &msta->psq);
 446                 mt7603_ps_set_more_data(skb);
 447                 __skb_queue_tail(&list, skb);
 448                 nframes--;
 449         }
 450         spin_unlock_bh(&dev->ps_lock);
 451
 452         if (!skb_queue_empty(&list))
 453                 ieee80211_sta_eosp(sta);
 454
 455         mt7603_ps_tx_list(dev, &list);
 456
 457         if (nframes)
 458                 mt76_release_buffered_frames(hw, sta, tids, nframes, reason,
 459                                              more_data);
 460 }
 461
 462 static int
 463 mt7603_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 464                struct ieee80211_vif *vif, struct ieee80211_sta *sta,
 465                struct ieee80211_key_conf *key)
 466 {
 467         struct mt7603_dev *dev = hw->priv;
 468         struct mt7603_vif *mvif = (struct mt7603_vif *)vif->drv_priv;
 469         struct mt7603_sta *msta = sta ? (struct mt7603_sta *)sta->drv_priv :
 470                                   &mvif->sta;
 471         struct mt76_wcid *wcid = &msta->wcid;
 472         int idx = key->keyidx;
 473
 474         /* fall back to sw encryption for unsupported ciphers */
 475         switch (key->cipher) {
 476         case WLAN_CIPHER_SUITE_TKIP:
 477         case WLAN_CIPHER_SUITE_CCMP:
 478                 break;
 479         default:
 480                 return -EOPNOTSUPP;
 481         }
 482
 483         /*
 484          * The hardware does not support per-STA RX GTK, fall back
 485          * to software mode for these.
 486          */
 487         if ((vif->type == NL80211_IFTYPE_ADHOC ||
 488              vif->type == NL80211_IFTYPE_MESH_POINT) &&
 489             (key->cipher == WLAN_CIPHER_SUITE_TKIP ||
 490              key->cipher == WLAN_CIPHER_SUITE_CCMP) &&
 491             !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE))
 492                 return -EOPNOTSUPP;
 493
 494         if (cmd == SET_KEY) {
 495                 key->hw_key_idx = wcid->idx;
 496                 wcid->hw_key_idx = idx;
 497         } else {
 498                 if (idx == wcid->hw_key_idx)
 499                         wcid->hw_key_idx = -1;
 500
 501                 key = NULL;
 502         }
 503         mt76_wcid_key_setup(&dev->mt76, wcid, key);
 504
 505         return mt7603_wtbl_set_key(dev, wcid->idx, key);
 506 }
 507
 508 static int
 509 mt7603_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif, u16 queue,
 510                const struct ieee80211_tx_queue_params *params)
 511 {
 512         struct mt7603_dev *dev = hw->priv;
 513         u16 cw_min = (1 << 5) - 1;
 514         u16 cw_max = (1 << 10) - 1;
 515         u32 val;
 516
 517         queue = dev->mt76.q_tx[queue].q->hw_idx;
 518
 519         if (params->cw_min)
 520                 cw_min = params->cw_min;
 521         if (params->cw_max)
 522                 cw_max = params->cw_max;
 523
 524         mutex_lock(&dev->mt76.mutex);
 525         mt7603_mac_stop(dev);
 526
 527         val = mt76_rr(dev, MT_WMM_TXOP(queue));
 528         val &= ~(MT_WMM_TXOP_MASK << MT_WMM_TXOP_SHIFT(queue));
 529         val |= params->txop << MT_WMM_TXOP_SHIFT(queue);
 530         mt76_wr(dev, MT_WMM_TXOP(queue), val);
 531
 532         val = mt76_rr(dev, MT_WMM_AIFSN);
 533         val &= ~(MT_WMM_AIFSN_MASK << MT_WMM_AIFSN_SHIFT(queue));
 534         val |= params->aifs << MT_WMM_AIFSN_SHIFT(queue);
 535         mt76_wr(dev, MT_WMM_AIFSN, val);
 536
 537         val = mt76_rr(dev, MT_WMM_CWMIN);
 538         val &= ~(MT_WMM_CWMIN_MASK << MT_WMM_CWMIN_SHIFT(queue));
 539         val |= cw_min << MT_WMM_CWMIN_SHIFT(queue);
 540         mt76_wr(dev, MT_WMM_CWMIN, val);
 541
 542         val = mt76_rr(dev, MT_WMM_CWMAX(queue));
 543         val &= ~(MT_WMM_CWMAX_MASK << MT_WMM_CWMAX_SHIFT(queue));
 544         val |= cw_max << MT_WMM_CWMAX_SHIFT(queue);
 545         mt76_wr(dev, MT_WMM_CWMAX(queue), val);
 546
 547         mt7603_mac_start(dev);
 548         mutex_unlock(&dev->mt76.mutex);
 549
 550         return 0;
 551 }
 552
 553 static void
 554 mt7603_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 555              u32 queues, bool drop)
 556 {
 557 }
 558
 559 static int
 560 mt7603_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 561                     struct ieee80211_ampdu_params *params)
 562 {
 563         enum ieee80211_ampdu_mlme_action action = params->action;
 564         struct mt7603_dev *dev = hw->priv;
 565         struct ieee80211_sta *sta = params->sta;
 566         struct ieee80211_txq *txq = sta->txq[params->tid];
 567         struct mt7603_sta *msta = (struct mt7603_sta *)sta->drv_priv;
 568         u16 tid = params->tid;
 569         u16 ssn = params->ssn;
 570         u8 ba_size = params->buf_size;
 571         struct mt76_txq *mtxq;
 572         int ret = 0;
 573
 574         if (!txq)
 575                 return -EINVAL;
 576
 577         mtxq = (struct mt76_txq *)txq->drv_priv;
 578
 579         mutex_lock(&dev->mt76.mutex);
 580         switch (action) {
 581         case IEEE80211_AMPDU_RX_START:
 582                 mt76_rx_aggr_start(&dev->mt76, &msta->wcid, tid, ssn,
 583                                    params->buf_size);
 584                 mt7603_mac_rx_ba_reset(dev, sta->addr, tid);
 585                 break;
 586         case IEEE80211_AMPDU_RX_STOP:
 587                 mt76_rx_aggr_stop(&dev->mt76, &msta->wcid, tid);
 588                 break;
 589         case IEEE80211_AMPDU_TX_OPERATIONAL:
 590                 mtxq->aggr = true;
 591                 mtxq->send_bar = false;
 592                 mt7603_mac_tx_ba_reset(dev, msta->wcid.idx, tid, ba_size);
 593                 break;
 594         case IEEE80211_AMPDU_TX_STOP_FLUSH:
 595         case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
 596                 mtxq->aggr = false;
 597                 mt7603_mac_tx_ba_reset(dev, msta->wcid.idx, tid, -1);
 598                 break;
 599         case IEEE80211_AMPDU_TX_START:
 600                 mtxq->agg_ssn = IEEE80211_SN_TO_SEQ(ssn);
 601                 ret = IEEE80211_AMPDU_TX_START_IMMEDIATE;
 602                 break;
 603         case IEEE80211_AMPDU_TX_STOP_CONT:
 604                 mtxq->aggr = false;
 605                 mt7603_mac_tx_ba_reset(dev, msta->wcid.idx, tid, -1);
 606                 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
 607                 break;
 608         }
 609         mutex_unlock(&dev->mt76.mutex);
 610
 611         return ret;
 612 }
 613
 614 static void
 615 mt7603_sta_rate_tbl_update(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 616                            struct ieee80211_sta *sta)
 617 {
 618         struct mt7603_dev *dev = hw->priv;
 619         struct mt7603_sta *msta = (struct mt7603_sta *)sta->drv_priv;
 620         struct ieee80211_sta_rates *sta_rates = rcu_dereference(sta->rates);
 621         int i;
 622
 623         spin_lock_bh(&dev->mt76.lock);
 624         for (i = 0; i < ARRAY_SIZE(msta->rates); i++) {
 625                 msta->rates[i].idx = sta_rates->rate[i].idx;
 626                 msta->rates[i].count = sta_rates->rate[i].count;
 627                 msta->rates[i].flags = sta_rates->rate[i].flags;
 628
 629                 if (msta->rates[i].idx < 0 || !msta->rates[i].count)
 630                         break;
 631         }
 632         msta->n_rates = i;
 633         mt7603_wtbl_set_rates(dev, msta, NULL, msta->rates);
 634         msta->rate_probe = false;
 635         mt7603_wtbl_set_smps(dev, msta,
 636                              sta->smps_mode == IEEE80211_SMPS_DYNAMIC);
 637         spin_unlock_bh(&dev->mt76.lock);
 638 }
 639
 640 static void
 641 mt7603_set_coverage_class(struct ieee80211_hw *hw, s16 coverage_class)
 642 {
 643         struct mt7603_dev *dev = hw->priv;
 644
 645         dev->coverage_class = coverage_class;
 646         mt7603_mac_set_timing(dev);
 647 }
 648
 649 static void mt7603_tx(struct ieee80211_hw *hw,
 650                       struct ieee80211_tx_control *control,
 651                       struct sk_buff *skb)
 652 {
 653         struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 654         struct ieee80211_vif *vif = info->control.vif;
 655         struct mt7603_dev *dev = hw->priv;
 656         struct mt76_wcid *wcid = &dev->global_sta.wcid;
 657
 658         if (control->sta) {
 659                 struct mt7603_sta *msta;
 660
 661                 msta = (struct mt7603_sta *)control->sta->drv_priv;
 662                 wcid = &msta->wcid;
 663         } else if (vif) {
 664                 struct mt7603_vif *mvif;
 665
 666                 mvif = (struct mt7603_vif *)vif->drv_priv;
 667                 wcid = &mvif->sta.wcid;
 668         }
 669
 670         mt76_tx(&dev->mt76, control->sta, wcid, skb);
 671 }
 672
 673 const struct ieee80211_ops mt7603_ops = {
 674         .tx = mt7603_tx,
 675         .start = mt7603_start,
 676         .stop = mt7603_stop,
 677         .add_interface = mt7603_add_interface,
 678         .remove_interface = mt7603_remove_interface,
 679         .config = mt7603_config,
 680         .configure_filter = mt7603_configure_filter,
 681         .bss_info_changed = mt7603_bss_info_changed,
 682         .sta_state = mt76_sta_state,
 683         .set_key = mt7603_set_key,
 684         .conf_tx = mt7603_conf_tx,
 685         .sw_scan_start = mt76_sw_scan,
 686         .sw_scan_complete = mt76_sw_scan_complete,
 687         .flush = mt7603_flush,
 688         .ampdu_action = mt7603_ampdu_action,
 689         .get_txpower = mt76_get_txpower,
 690         .wake_tx_queue = mt76_wake_tx_queue,
 691         .sta_rate_tbl_update = mt7603_sta_rate_tbl_update,
 692         .release_buffered_frames = mt7603_release_buffered_frames,
 693         .set_coverage_class = mt7603_set_coverage_class,
 694         .set_tim = mt76_set_tim,
 695         .get_survey = mt76_get_survey,
 696         .get_antenna = mt76_get_antenna,
 697 };
 698
 699 MODULE_LICENSE("Dual BSD/GPL");
 700
 701 static int __init mt7603_init(void)
 702 {
 703         int ret;
 704
 705         ret = platform_driver_register(&mt76_wmac_driver);
 706         if (ret)
 707                 return ret;
 708
 709 #ifdef CONFIG_PCI
 710         ret = pci_register_driver(&mt7603_pci_driver);
 711         if (ret)
 712                 platform_driver_unregister(&mt76_wmac_driver);
 713 #endif
 714         return ret;
 715 }
 716
 717 static void __exit mt7603_exit(void)
 718 {
 719 #ifdef CONFIG_PCI
 720         pci_unregister_driver(&mt7603_pci_driver);
 721 #endif
 722         platform_driver_unregister(&mt76_wmac_driver);
 723 }
 724
 725 module_init(mt7603_init);
 726 module_exit(mt7603_exit);