drivers/net/wireless/mediatek/mt76/mt7925/main.c

   1 // SPDX-License-Identifier: ISC
   2 /* Copyright (C) 2023 MediaTek Inc. */
   3
   4 #include <linux/etherdevice.h>
   5 #include <linux/platform_device.h>
   6 #include <linux/pci.h>
   7 #include <linux/module.h>
   8 #include <linux/ctype.h>
   9 #include <net/ipv6.h>
  10 #include "mt7925.h"
  11 #include "mcu.h"
  12 #include "mac.h"
  13
  14 static void
  15 mt7925_init_he_caps(struct mt792x_phy *phy, enum nl80211_band band,
  16                     struct ieee80211_sband_iftype_data *data,
  17                     enum nl80211_iftype iftype)
  18 {
  19         struct ieee80211_sta_he_cap *he_cap = &data->he_cap;
  20         struct ieee80211_he_cap_elem *he_cap_elem = &he_cap->he_cap_elem;
  21         struct ieee80211_he_mcs_nss_supp *he_mcs = &he_cap->he_mcs_nss_supp;
  22         int i, nss = hweight8(phy->mt76->antenna_mask);
  23         u16 mcs_map = 0;
  24
  25         for (i = 0; i < 8; i++) {
  26                 if (i < nss)
  27                         mcs_map |= (IEEE80211_HE_MCS_SUPPORT_0_11 << (i * 2));
  28                 else
  29                         mcs_map |= (IEEE80211_HE_MCS_NOT_SUPPORTED << (i * 2));
  30         }
  31
  32         he_cap->has_he = true;
  33
  34         he_cap_elem->mac_cap_info[0] = IEEE80211_HE_MAC_CAP0_HTC_HE;
  35         he_cap_elem->mac_cap_info[3] = IEEE80211_HE_MAC_CAP3_OMI_CONTROL |
  36                                        IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3;
  37         he_cap_elem->mac_cap_info[4] = IEEE80211_HE_MAC_CAP4_AMSDU_IN_AMPDU;
  38
  39         if (band == NL80211_BAND_2GHZ)
  40                 he_cap_elem->phy_cap_info[0] =
  41                         IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G;
  42         else
  43                 he_cap_elem->phy_cap_info[0] =
  44                         IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G |
  45                         IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G;
  46
  47         he_cap_elem->phy_cap_info[1] =
  48                 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD;
  49         he_cap_elem->phy_cap_info[2] =
  50                 IEEE80211_HE_PHY_CAP2_NDP_4x_LTF_AND_3_2US |
  51                 IEEE80211_HE_PHY_CAP2_STBC_TX_UNDER_80MHZ |
  52                 IEEE80211_HE_PHY_CAP2_STBC_RX_UNDER_80MHZ |
  53                 IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO |
  54                 IEEE80211_HE_PHY_CAP2_UL_MU_PARTIAL_MU_MIMO;
  55
  56         switch (iftype) {
  57         case NL80211_IFTYPE_AP:
  58                 he_cap_elem->mac_cap_info[2] |=
  59                         IEEE80211_HE_MAC_CAP2_BSR;
  60                 he_cap_elem->mac_cap_info[4] |=
  61                         IEEE80211_HE_MAC_CAP4_BQR;
  62                 he_cap_elem->mac_cap_info[5] |=
  63                         IEEE80211_HE_MAC_CAP5_OM_CTRL_UL_MU_DATA_DIS_RX;
  64                 he_cap_elem->phy_cap_info[3] |=
  65                         IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK |
  66                         IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK;
  67                 he_cap_elem->phy_cap_info[6] |=
  68                         IEEE80211_HE_PHY_CAP6_PARTIAL_BW_EXT_RANGE |
  69                         IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT;
  70                 he_cap_elem->phy_cap_info[9] |=
  71                         IEEE80211_HE_PHY_CAP9_TX_1024_QAM_LESS_THAN_242_TONE_RU |
  72                         IEEE80211_HE_PHY_CAP9_RX_1024_QAM_LESS_THAN_242_TONE_RU;
  73                 break;
  74         case NL80211_IFTYPE_STATION:
  75                 he_cap_elem->mac_cap_info[1] |=
  76                         IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US;
  77
  78                 if (band == NL80211_BAND_2GHZ)
  79                         he_cap_elem->phy_cap_info[0] |=
  80                                 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_RU_MAPPING_IN_2G;
  81                 else
  82                         he_cap_elem->phy_cap_info[0] |=
  83                                 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_RU_MAPPING_IN_5G;
  84
  85                 he_cap_elem->phy_cap_info[1] |=
  86                         IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A |
  87                         IEEE80211_HE_PHY_CAP1_HE_LTF_AND_GI_FOR_HE_PPDUS_0_8US;
  88                 he_cap_elem->phy_cap_info[3] |=
  89                         IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK |
  90                         IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK;
  91                 he_cap_elem->phy_cap_info[4] |=
  92                         IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE |
  93                         IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_4 |
  94                         IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_4;
  95                 he_cap_elem->phy_cap_info[5] |=
  96                         IEEE80211_HE_PHY_CAP5_NG16_SU_FEEDBACK |
  97                         IEEE80211_HE_PHY_CAP5_NG16_MU_FEEDBACK;
  98                 he_cap_elem->phy_cap_info[6] |=
  99                         IEEE80211_HE_PHY_CAP6_CODEBOOK_SIZE_42_SU |
 100                         IEEE80211_HE_PHY_CAP6_CODEBOOK_SIZE_75_MU |
 101                         IEEE80211_HE_PHY_CAP6_TRIG_CQI_FB |
 102                         IEEE80211_HE_PHY_CAP6_PARTIAL_BW_EXT_RANGE |
 103                         IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT;
 104                 he_cap_elem->phy_cap_info[7] |=
 105                         IEEE80211_HE_PHY_CAP7_POWER_BOOST_FACTOR_SUPP |
 106                         IEEE80211_HE_PHY_CAP7_HE_SU_MU_PPDU_4XLTF_AND_08_US_GI;
 107                 he_cap_elem->phy_cap_info[8] |=
 108                         IEEE80211_HE_PHY_CAP8_20MHZ_IN_40MHZ_HE_PPDU_IN_2G |
 109                         IEEE80211_HE_PHY_CAP8_20MHZ_IN_160MHZ_HE_PPDU |
 110                         IEEE80211_HE_PHY_CAP8_80MHZ_IN_160MHZ_HE_PPDU |
 111                         IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_484;
 112                 he_cap_elem->phy_cap_info[9] |=
 113                         IEEE80211_HE_PHY_CAP9_LONGER_THAN_16_SIGB_OFDM_SYM |
 114                         IEEE80211_HE_PHY_CAP9_NON_TRIGGERED_CQI_FEEDBACK |
 115                         IEEE80211_HE_PHY_CAP9_TX_1024_QAM_LESS_THAN_242_TONE_RU |
 116                         IEEE80211_HE_PHY_CAP9_RX_1024_QAM_LESS_THAN_242_TONE_RU |
 117                         IEEE80211_HE_PHY_CAP9_RX_FULL_BW_SU_USING_MU_WITH_COMP_SIGB |
 118                         IEEE80211_HE_PHY_CAP9_RX_FULL_BW_SU_USING_MU_WITH_NON_COMP_SIGB;
 119                 break;
 120         default:
 121                 break;
 122         }
 123
 124         he_mcs->rx_mcs_80 = cpu_to_le16(mcs_map);
 125         he_mcs->tx_mcs_80 = cpu_to_le16(mcs_map);
 126         he_mcs->rx_mcs_160 = cpu_to_le16(mcs_map);
 127         he_mcs->tx_mcs_160 = cpu_to_le16(mcs_map);
 128
 129         memset(he_cap->ppe_thres, 0, sizeof(he_cap->ppe_thres));
 130
 131         if (he_cap_elem->phy_cap_info[6] &
 132             IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) {
 133                 mt76_connac_gen_ppe_thresh(he_cap->ppe_thres, nss);
 134         } else {
 135                 he_cap_elem->phy_cap_info[9] |=
 136                         u8_encode_bits(IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_16US,
 137                                        IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK);
 138         }
 139
 140         if (band == NL80211_BAND_6GHZ) {
 141                 u16 cap = IEEE80211_HE_6GHZ_CAP_TX_ANTPAT_CONS |
 142                           IEEE80211_HE_6GHZ_CAP_RX_ANTPAT_CONS;
 143
 144                 cap |= u16_encode_bits(IEEE80211_HT_MPDU_DENSITY_0_5,
 145                                        IEEE80211_HE_6GHZ_CAP_MIN_MPDU_START) |
 146                        u16_encode_bits(IEEE80211_VHT_MAX_AMPDU_1024K,
 147                                        IEEE80211_HE_6GHZ_CAP_MAX_AMPDU_LEN_EXP) |
 148                        u16_encode_bits(IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454,
 149                                        IEEE80211_HE_6GHZ_CAP_MAX_MPDU_LEN);
 150
 151                 data->he_6ghz_capa.capa = cpu_to_le16(cap);
 152         }
 153 }
 154
 155 static void
 156 mt7925_init_eht_caps(struct mt792x_phy *phy, enum nl80211_band band,
 157                      struct ieee80211_sband_iftype_data *data)
 158 {
 159         struct ieee80211_sta_eht_cap *eht_cap = &data->eht_cap;
 160         struct ieee80211_eht_cap_elem_fixed *eht_cap_elem = &eht_cap->eht_cap_elem;
 161         struct ieee80211_eht_mcs_nss_supp *eht_nss = &eht_cap->eht_mcs_nss_supp;
 162         enum nl80211_chan_width width = phy->mt76->chandef.width;
 163         int nss = hweight8(phy->mt76->antenna_mask);
 164         int sts = hweight16(phy->mt76->chainmask);
 165         u8 val;
 166
 167         if (!phy->dev->has_eht)
 168                 return;
 169
 170         eht_cap->has_eht = true;
 171
 172         eht_cap_elem->mac_cap_info[0] =
 173                 IEEE80211_EHT_MAC_CAP0_EPCS_PRIO_ACCESS |
 174                 IEEE80211_EHT_MAC_CAP0_OM_CONTROL;
 175
 176         eht_cap_elem->phy_cap_info[0] =
 177                 IEEE80211_EHT_PHY_CAP0_NDP_4_EHT_LFT_32_GI |
 178                 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER |
 179                 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE;
 180
 181         eht_cap_elem->phy_cap_info[0] |=
 182                 u8_encode_bits(u8_get_bits(sts - 1, BIT(0)),
 183                                IEEE80211_EHT_PHY_CAP0_BEAMFORMEE_SS_80MHZ_MASK);
 184
 185         eht_cap_elem->phy_cap_info[1] =
 186                 u8_encode_bits(u8_get_bits(sts - 1, GENMASK(2, 1)),
 187                                IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_80MHZ_MASK) |
 188                 u8_encode_bits(sts - 1,
 189                                IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_160MHZ_MASK);
 190
 191         eht_cap_elem->phy_cap_info[2] =
 192                 u8_encode_bits(sts - 1, IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_80MHZ_MASK) |
 193                 u8_encode_bits(sts - 1, IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_160MHZ_MASK);
 194
 195         eht_cap_elem->phy_cap_info[3] =
 196                 IEEE80211_EHT_PHY_CAP3_NG_16_SU_FEEDBACK |
 197                 IEEE80211_EHT_PHY_CAP3_NG_16_MU_FEEDBACK |
 198                 IEEE80211_EHT_PHY_CAP3_CODEBOOK_4_2_SU_FDBK |
 199                 IEEE80211_EHT_PHY_CAP3_CODEBOOK_7_5_MU_FDBK |
 200                 IEEE80211_EHT_PHY_CAP3_TRIG_SU_BF_FDBK |
 201                 IEEE80211_EHT_PHY_CAP3_TRIG_MU_BF_PART_BW_FDBK |
 202                 IEEE80211_EHT_PHY_CAP3_TRIG_CQI_FDBK;
 203
 204         eht_cap_elem->phy_cap_info[4] =
 205                 u8_encode_bits(min_t(int, sts - 1, 2),
 206                                IEEE80211_EHT_PHY_CAP4_MAX_NC_MASK);
 207
 208         eht_cap_elem->phy_cap_info[5] =
 209                 IEEE80211_EHT_PHY_CAP5_NON_TRIG_CQI_FEEDBACK |
 210                 u8_encode_bits(IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_16US,
 211                                IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK) |
 212                 u8_encode_bits(u8_get_bits(0x11, GENMASK(1, 0)),
 213                                IEEE80211_EHT_PHY_CAP5_MAX_NUM_SUPP_EHT_LTF_MASK);
 214
 215         val = width == NL80211_CHAN_WIDTH_160 ? 0x7 :
 216               width == NL80211_CHAN_WIDTH_80 ? 0x3 : 0x1;
 217         eht_cap_elem->phy_cap_info[6] =
 218                 u8_encode_bits(u8_get_bits(0x11, GENMASK(4, 2)),
 219                                IEEE80211_EHT_PHY_CAP6_MAX_NUM_SUPP_EHT_LTF_MASK) |
 220                 u8_encode_bits(val, IEEE80211_EHT_PHY_CAP6_MCS15_SUPP_MASK);
 221
 222         eht_cap_elem->phy_cap_info[7] =
 223                 IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_80MHZ |
 224                 IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_160MHZ |
 225                 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_80MHZ |
 226                 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_160MHZ;
 227
 228         val = u8_encode_bits(nss, IEEE80211_EHT_MCS_NSS_RX) |
 229               u8_encode_bits(nss, IEEE80211_EHT_MCS_NSS_TX);
 230
 231         eht_nss->bw._80.rx_tx_mcs9_max_nss = val;
 232         eht_nss->bw._80.rx_tx_mcs11_max_nss = val;
 233         eht_nss->bw._80.rx_tx_mcs13_max_nss = val;
 234         eht_nss->bw._160.rx_tx_mcs9_max_nss = val;
 235         eht_nss->bw._160.rx_tx_mcs11_max_nss = val;
 236         eht_nss->bw._160.rx_tx_mcs13_max_nss = val;
 237 }
 238
 239 static void
 240 __mt7925_set_stream_he_eht_caps(struct mt792x_phy *phy,
 241                                 struct ieee80211_supported_band *sband,
 242                                 enum nl80211_band band)
 243 {
 244         struct ieee80211_sband_iftype_data *data = phy->iftype[band];
 245         int i, n = 0;
 246
 247         for (i = 0; i < NUM_NL80211_IFTYPES; i++) {
 248                 switch (i) {
 249                 case NL80211_IFTYPE_STATION:
 250                 case NL80211_IFTYPE_AP:
 251                         break;
 252                 default:
 253                         continue;
 254                 }
 255
 256                 data[n].types_mask = BIT(i);
 257                 mt7925_init_he_caps(phy, band, &data[n], i);
 258                 mt7925_init_eht_caps(phy, band, &data[n]);
 259
 260                 n++;
 261         }
 262
 263         _ieee80211_set_sband_iftype_data(sband, data, n);
 264 }
 265
 266 void mt7925_set_stream_he_eht_caps(struct mt792x_phy *phy)
 267 {
 268         if (phy->mt76->cap.has_2ghz)
 269                 __mt7925_set_stream_he_eht_caps(phy, &phy->mt76->sband_2g.sband,
 270                                                 NL80211_BAND_2GHZ);
 271
 272         if (phy->mt76->cap.has_5ghz)
 273                 __mt7925_set_stream_he_eht_caps(phy, &phy->mt76->sband_5g.sband,
 274                                                 NL80211_BAND_5GHZ);
 275
 276         if (phy->mt76->cap.has_6ghz)
 277                 __mt7925_set_stream_he_eht_caps(phy, &phy->mt76->sband_6g.sband,
 278                                                 NL80211_BAND_6GHZ);
 279 }
 280
 281 int __mt7925_start(struct mt792x_phy *phy)
 282 {
 283         struct mt76_phy *mphy = phy->mt76;
 284         int err;
 285
 286         err = mt7925_mcu_set_channel_domain(mphy);
 287         if (err)
 288                 return err;
 289
 290         err = mt7925_mcu_set_rts_thresh(phy, 0x92b);
 291         if (err)
 292                 return err;
 293
 294         err = mt7925_set_tx_sar_pwr(mphy->hw, NULL);
 295         if (err)
 296                 return err;
 297
 298         mt792x_mac_reset_counters(phy);
 299         set_bit(MT76_STATE_RUNNING, &mphy->state);
 300
 301         ieee80211_queue_delayed_work(mphy->hw, &mphy->mac_work,
 302                                      MT792x_WATCHDOG_TIME);
 303
 304         return 0;
 305 }
 306 EXPORT_SYMBOL_GPL(__mt7925_start);
 307
 308 static int mt7925_start(struct ieee80211_hw *hw)
 309 {
 310         struct mt792x_phy *phy = mt792x_hw_phy(hw);
 311         int err;
 312
 313         mt792x_mutex_acquire(phy->dev);
 314         err = __mt7925_start(phy);
 315         mt792x_mutex_release(phy->dev);
 316
 317         return err;
 318 }
 319
 320 static int
 321 mt7925_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
 322 {
 323         struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
 324         struct mt792x_dev *dev = mt792x_hw_dev(hw);
 325         struct mt792x_phy *phy = mt792x_hw_phy(hw);
 326         struct mt76_txq *mtxq;
 327         int idx, ret = 0;
 328
 329         mt792x_mutex_acquire(dev);
 330
 331         mvif->mt76.idx = __ffs64(~dev->mt76.vif_mask);
 332         if (mvif->mt76.idx >= MT792x_MAX_INTERFACES) {
 333                 ret = -ENOSPC;
 334                 goto out;
 335         }
 336
 337         mvif->mt76.omac_idx = mvif->mt76.idx;
 338         mvif->phy = phy;
 339         mvif->mt76.band_idx = 0;
 340         mvif->mt76.wmm_idx = mvif->mt76.idx % MT76_CONNAC_MAX_WMM_SETS;
 341
 342         if (phy->mt76->chandef.chan->band != NL80211_BAND_2GHZ)
 343                 mvif->mt76.basic_rates_idx = MT792x_BASIC_RATES_TBL + 4;
 344         else
 345                 mvif->mt76.basic_rates_idx = MT792x_BASIC_RATES_TBL;
 346
 347         ret = mt76_connac_mcu_uni_add_dev(&dev->mphy, vif, &mvif->sta.wcid,
 348                                           true);
 349         if (ret)
 350                 goto out;
 351
 352         dev->mt76.vif_mask |= BIT_ULL(mvif->mt76.idx);
 353         phy->omac_mask |= BIT_ULL(mvif->mt76.omac_idx);
 354
 355         idx = MT792x_WTBL_RESERVED - mvif->mt76.idx;
 356
 357         INIT_LIST_HEAD(&mvif->sta.wcid.poll_list);
 358         mvif->sta.wcid.idx = idx;
 359         mvif->sta.wcid.phy_idx = mvif->mt76.band_idx;
 360         mvif->sta.wcid.hw_key_idx = -1;
 361         mvif->sta.wcid.tx_info |= MT_WCID_TX_INFO_SET;
 362         mt76_wcid_init(&mvif->sta.wcid);
 363
 364         mt7925_mac_wtbl_update(dev, idx,
 365                                MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
 366
 367         ewma_rssi_init(&mvif->rssi);
 368
 369         rcu_assign_pointer(dev->mt76.wcid[idx], &mvif->sta.wcid);
 370         if (vif->txq) {
 371                 mtxq = (struct mt76_txq *)vif->txq->drv_priv;
 372                 mtxq->wcid = idx;
 373         }
 374
 375         vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER;
 376 out:
 377         mt792x_mutex_release(dev);
 378
 379         return ret;
 380 }
 381
 382 static void mt7925_roc_iter(void *priv, u8 *mac,
 383                             struct ieee80211_vif *vif)
 384 {
 385         struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
 386         struct mt792x_phy *phy = priv;
 387
 388         mt7925_mcu_abort_roc(phy, mvif, phy->roc_token_id);
 389 }
 390
 391 void mt7925_roc_work(struct work_struct *work)
 392 {
 393         struct mt792x_phy *phy;
 394
 395         phy = (struct mt792x_phy *)container_of(work, struct mt792x_phy,
 396                                                 roc_work);
 397
 398         if (!test_and_clear_bit(MT76_STATE_ROC, &phy->mt76->state))
 399                 return;
 400
 401         mt792x_mutex_acquire(phy->dev);
 402         ieee80211_iterate_active_interfaces(phy->mt76->hw,
 403                                             IEEE80211_IFACE_ITER_RESUME_ALL,
 404                                             mt7925_roc_iter, phy);
 405         mt792x_mutex_release(phy->dev);
 406         ieee80211_remain_on_channel_expired(phy->mt76->hw);
 407 }
 408
 409 static int mt7925_abort_roc(struct mt792x_phy *phy, struct mt792x_vif *vif)
 410 {
 411         int err = 0;
 412
 413         del_timer_sync(&phy->roc_timer);
 414         cancel_work_sync(&phy->roc_work);
 415
 416         mt792x_mutex_acquire(phy->dev);
 417         if (test_and_clear_bit(MT76_STATE_ROC, &phy->mt76->state))
 418                 err = mt7925_mcu_abort_roc(phy, vif, phy->roc_token_id);
 419         mt792x_mutex_release(phy->dev);
 420
 421         return err;
 422 }
 423
 424 static int mt7925_set_roc(struct mt792x_phy *phy,
 425                           struct mt792x_vif *vif,
 426                           struct ieee80211_channel *chan,
 427                           int duration,
 428                           enum mt7925_roc_req type)
 429 {
 430         int err;
 431
 432         if (test_and_set_bit(MT76_STATE_ROC, &phy->mt76->state))
 433                 return -EBUSY;
 434
 435         phy->roc_grant = false;
 436
 437         err = mt7925_mcu_set_roc(phy, vif, chan, duration, type,
 438                                  ++phy->roc_token_id);
 439         if (err < 0) {
 440                 clear_bit(MT76_STATE_ROC, &phy->mt76->state);
 441                 goto out;
 442         }
 443
 444         if (!wait_event_timeout(phy->roc_wait, phy->roc_grant, 4 * HZ)) {
 445                 mt7925_mcu_abort_roc(phy, vif, phy->roc_token_id);
 446                 clear_bit(MT76_STATE_ROC, &phy->mt76->state);
 447                 err = -ETIMEDOUT;
 448         }
 449
 450 out:
 451         return err;
 452 }
 453
 454 static int mt7925_remain_on_channel(struct ieee80211_hw *hw,
 455                                     struct ieee80211_vif *vif,
 456                                     struct ieee80211_channel *chan,
 457                                     int duration,
 458                                     enum ieee80211_roc_type type)
 459 {
 460         struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
 461         struct mt792x_phy *phy = mt792x_hw_phy(hw);
 462         int err;
 463
 464         mt792x_mutex_acquire(phy->dev);
 465         err = mt7925_set_roc(phy, mvif, chan, duration, MT7925_ROC_REQ_ROC);
 466         mt792x_mutex_release(phy->dev);
 467
 468         return err;
 469 }
 470
 471 static int mt7925_cancel_remain_on_channel(struct ieee80211_hw *hw,
 472                                            struct ieee80211_vif *vif)
 473 {
 474         struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
 475         struct mt792x_phy *phy = mt792x_hw_phy(hw);
 476
 477         return mt7925_abort_roc(phy, mvif);
 478 }
 479
 480 static int mt7925_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 481                           struct ieee80211_vif *vif, struct ieee80211_sta *sta,
 482                           struct ieee80211_key_conf *key)
 483 {
 484         struct mt792x_dev *dev = mt792x_hw_dev(hw);
 485         struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
 486         struct mt792x_sta *msta = sta ? (struct mt792x_sta *)sta->drv_priv :
 487                                   &mvif->sta;
 488         struct mt76_wcid *wcid = &msta->wcid;
 489         u8 *wcid_keyidx = &wcid->hw_key_idx;
 490         int idx = key->keyidx, err = 0;
 491
 492         /* The hardware does not support per-STA RX GTK, fallback
 493          * to software mode for these.
 494          */
 495         if ((vif->type == NL80211_IFTYPE_ADHOC ||
 496              vif->type == NL80211_IFTYPE_MESH_POINT) &&
 497             (key->cipher == WLAN_CIPHER_SUITE_TKIP ||
 498              key->cipher == WLAN_CIPHER_SUITE_CCMP) &&
 499             !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE))
 500                 return -EOPNOTSUPP;
 501
 502         /* fall back to sw encryption for unsupported ciphers */
 503         switch (key->cipher) {
 504         case WLAN_CIPHER_SUITE_AES_CMAC:
 505                 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIE;
 506                 wcid_keyidx = &wcid->hw_key_idx2;
 507                 break;
 508         case WLAN_CIPHER_SUITE_WEP40:
 509         case WLAN_CIPHER_SUITE_WEP104:
 510                 if (!mvif->wep_sta)
 511                         return -EOPNOTSUPP;
 512                 break;
 513         case WLAN_CIPHER_SUITE_TKIP:
 514         case WLAN_CIPHER_SUITE_CCMP:
 515         case WLAN_CIPHER_SUITE_CCMP_256:
 516         case WLAN_CIPHER_SUITE_GCMP:
 517         case WLAN_CIPHER_SUITE_GCMP_256:
 518         case WLAN_CIPHER_SUITE_SMS4:
 519                 break;
 520         default:
 521                 return -EOPNOTSUPP;
 522         }
 523
 524         mt792x_mutex_acquire(dev);
 525
 526         if (cmd == SET_KEY && !mvif->mt76.cipher) {
 527                 struct mt792x_phy *phy = mt792x_hw_phy(hw);
 528
 529                 mvif->mt76.cipher = mt76_connac_mcu_get_cipher(key->cipher);
 530                 mt7925_mcu_add_bss_info(phy, mvif->mt76.ctx, vif, sta, true);
 531         }
 532
 533         if (cmd == SET_KEY)
 534                 *wcid_keyidx = idx;
 535         else if (idx == *wcid_keyidx)
 536                 *wcid_keyidx = -1;
 537         else
 538                 goto out;
 539
 540         mt76_wcid_key_setup(&dev->mt76, wcid,
 541                             cmd == SET_KEY ? key : NULL);
 542
 543         err = mt7925_mcu_add_key(&dev->mt76, vif, &msta->bip,
 544                                  key, MCU_UNI_CMD(STA_REC_UPDATE),
 545                                  &msta->wcid, cmd);
 546
 547         if (err)
 548                 goto out;
 549
 550         if (key->cipher == WLAN_CIPHER_SUITE_WEP104 ||
 551             key->cipher == WLAN_CIPHER_SUITE_WEP40)
 552                 err = mt7925_mcu_add_key(&dev->mt76, vif, &mvif->wep_sta->bip,
 553                                          key, MCU_WMWA_UNI_CMD(STA_REC_UPDATE),
 554                                          &mvif->wep_sta->wcid, cmd);
 555
 556 out:
 557         mt792x_mutex_release(dev);
 558
 559         return err;
 560 }
 561
 562 static void
 563 mt7925_pm_interface_iter(void *priv, u8 *mac, struct ieee80211_vif *vif)
 564 {
 565         struct mt792x_dev *dev = priv;
 566         struct ieee80211_hw *hw = mt76_hw(dev);
 567         bool pm_enable = dev->pm.enable;
 568         int err;
 569
 570         err = mt7925_mcu_set_beacon_filter(dev, vif, pm_enable);
 571         if (err < 0)
 572                 return;
 573
 574         if (pm_enable) {
 575                 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER;
 576                 ieee80211_hw_set(hw, CONNECTION_MONITOR);
 577         } else {
 578                 vif->driver_flags &= ~IEEE80211_VIF_BEACON_FILTER;
 579                 __clear_bit(IEEE80211_HW_CONNECTION_MONITOR, hw->flags);
 580         }
 581 }
 582
 583 static void
 584 mt7925_sniffer_interface_iter(void *priv, u8 *mac, struct ieee80211_vif *vif)
 585 {
 586         struct mt792x_dev *dev = priv;
 587         struct ieee80211_hw *hw = mt76_hw(dev);
 588         struct mt76_connac_pm *pm = &dev->pm;
 589         bool monitor = !!(hw->conf.flags & IEEE80211_CONF_MONITOR);
 590
 591         mt7925_mcu_set_sniffer(dev, vif, monitor);
 592         pm->enable = pm->enable_user && !monitor;
 593         pm->ds_enable = pm->ds_enable_user && !monitor;
 594
 595         mt7925_mcu_set_deep_sleep(dev, pm->ds_enable);
 596
 597         if (monitor)
 598                 mt7925_mcu_set_beacon_filter(dev, vif, false);
 599 }
 600
 601 void mt7925_set_runtime_pm(struct mt792x_dev *dev)
 602 {
 603         struct ieee80211_hw *hw = mt76_hw(dev);
 604         struct mt76_connac_pm *pm = &dev->pm;
 605         bool monitor = !!(hw->conf.flags & IEEE80211_CONF_MONITOR);
 606
 607         pm->enable = pm->enable_user && !monitor;
 608         ieee80211_iterate_active_interfaces(hw,
 609                                             IEEE80211_IFACE_ITER_RESUME_ALL,
 610                                             mt7925_pm_interface_iter, dev);
 611         pm->ds_enable = pm->ds_enable_user && !monitor;
 612         mt7925_mcu_set_deep_sleep(dev, pm->ds_enable);
 613 }
 614
 615 static int mt7925_config(struct ieee80211_hw *hw, u32 changed)
 616 {
 617         struct mt792x_dev *dev = mt792x_hw_dev(hw);
 618         int ret = 0;
 619
 620         mt792x_mutex_acquire(dev);
 621
 622         if (changed & IEEE80211_CONF_CHANGE_POWER) {
 623                 ret = mt7925_set_tx_sar_pwr(hw, NULL);
 624                 if (ret)
 625                         goto out;
 626         }
 627
 628         if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
 629                 ieee80211_iterate_active_interfaces(hw,
 630                                                     IEEE80211_IFACE_ITER_RESUME_ALL,
 631                                                     mt7925_sniffer_interface_iter, dev);
 632         }
 633
 634 out:
 635         mt792x_mutex_release(dev);
 636
 637         return ret;
 638 }
 639
 640 static void mt7925_configure_filter(struct ieee80211_hw *hw,
 641                                     unsigned int changed_flags,
 642                                     unsigned int *total_flags,
 643                                     u64 multicast)
 644 {
 645 #define MT7925_FILTER_FCSFAIL    BIT(2)
 646 #define MT7925_FILTER_CONTROL    BIT(5)
 647 #define MT7925_FILTER_OTHER_BSS  BIT(6)
 648 #define MT7925_FILTER_ENABLE     BIT(31)
 649         struct mt792x_dev *dev = mt792x_hw_dev(hw);
 650         u32 flags = MT7925_FILTER_ENABLE;
 651
 652 #define MT7925_FILTER(_fif, _type) do {                 \
 653                 if (*total_flags & (_fif))              \
 654                         flags |= MT7925_FILTER_##_type; \
 655         } while (0)
 656
 657         MT7925_FILTER(FIF_FCSFAIL, FCSFAIL);
 658         MT7925_FILTER(FIF_CONTROL, CONTROL);
 659         MT7925_FILTER(FIF_OTHER_BSS, OTHER_BSS);
 660
 661         mt792x_mutex_acquire(dev);
 662         mt7925_mcu_set_rxfilter(dev, flags, 0, 0);
 663         mt792x_mutex_release(dev);
 664
 665         *total_flags &= (FIF_OTHER_BSS | FIF_FCSFAIL | FIF_CONTROL);
 666 }
 667
 668 static u8
 669 mt7925_get_rates_table(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 670                        bool beacon, bool mcast)
 671 {
 672         struct mt76_vif *mvif = (struct mt76_vif *)vif->drv_priv;
 673         struct mt76_phy *mphy = hw->priv;
 674         u16 rate;
 675         u8 i, idx, ht;
 676
 677         rate = mt76_connac2_mac_tx_rate_val(mphy, vif, beacon, mcast);
 678         ht = FIELD_GET(MT_TX_RATE_MODE, rate) > MT_PHY_TYPE_OFDM;
 679
 680         if (beacon && ht) {
 681                 struct mt792x_dev *dev = mt792x_hw_dev(hw);
 682
 683                 /* must odd index */
 684                 idx = MT7925_BEACON_RATES_TBL + 2 * (mvif->idx % 20);
 685                 mt7925_mac_set_fixed_rate_table(dev, idx, rate);
 686                 return idx;
 687         }
 688
 689         idx = FIELD_GET(MT_TX_RATE_IDX, rate);
 690         for (i = 0; i < ARRAY_SIZE(mt76_rates); i++)
 691                 if ((mt76_rates[i].hw_value & GENMASK(7, 0)) == idx)
 692                         return MT792x_BASIC_RATES_TBL + i;
 693
 694         return mvif->basic_rates_idx;
 695 }
 696
 697 static void mt7925_bss_info_changed(struct ieee80211_hw *hw,
 698                                     struct ieee80211_vif *vif,
 699                                     struct ieee80211_bss_conf *info,
 700                                     u64 changed)
 701 {
 702         struct mt76_vif *mvif = (struct mt76_vif *)vif->drv_priv;
 703         struct mt792x_phy *phy = mt792x_hw_phy(hw);
 704         struct mt792x_dev *dev = mt792x_hw_dev(hw);
 705
 706         mt792x_mutex_acquire(dev);
 707
 708         if (changed & BSS_CHANGED_ERP_SLOT) {
 709                 int slottime = info->use_short_slot ? 9 : 20;
 710
 711                 if (slottime != phy->slottime) {
 712                         phy->slottime = slottime;
 713                         mt792x_mac_set_timeing(phy);
 714                 }
 715         }
 716
 717         if (changed & BSS_CHANGED_MCAST_RATE)
 718                 mvif->mcast_rates_idx =
 719                                 mt7925_get_rates_table(hw, vif, false, true);
 720
 721         if (changed & BSS_CHANGED_BASIC_RATES)
 722                 mvif->basic_rates_idx =
 723                                 mt7925_get_rates_table(hw, vif, false, false);
 724
 725         if (changed & (BSS_CHANGED_BEACON |
 726                        BSS_CHANGED_BEACON_ENABLED)) {
 727                 mvif->beacon_rates_idx =
 728                                 mt7925_get_rates_table(hw, vif, true, false);
 729
 730                 mt7925_mcu_uni_add_beacon_offload(dev, hw, vif,
 731                                                   info->enable_beacon);
 732         }
 733
 734         /* ensure that enable txcmd_mode after bss_info */
 735         if (changed & (BSS_CHANGED_QOS | BSS_CHANGED_BEACON_ENABLED))
 736                 mt7925_mcu_set_tx(dev, vif);
 737
 738         if (changed & BSS_CHANGED_PS)
 739                 mt7925_mcu_uni_bss_ps(dev, vif);
 740
 741         if (changed & BSS_CHANGED_ASSOC) {
 742                 mt7925_mcu_sta_update(dev, NULL, vif, true,
 743                                       MT76_STA_INFO_STATE_ASSOC);
 744                 mt7925_mcu_set_beacon_filter(dev, vif, vif->cfg.assoc);
 745         }
 746
 747         if (changed & BSS_CHANGED_ARP_FILTER) {
 748                 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
 749
 750                 mt7925_mcu_update_arp_filter(&dev->mt76, &mvif->mt76, info);
 751         }
 752
 753         mt792x_mutex_release(dev);
 754 }
 755
 756 int mt7925_mac_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif,
 757                        struct ieee80211_sta *sta)
 758 {
 759         struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76);
 760         struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv;
 761         struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
 762         int ret, idx;
 763
 764         idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT792x_WTBL_STA - 1);
 765         if (idx < 0)
 766                 return -ENOSPC;
 767
 768         INIT_LIST_HEAD(&msta->wcid.poll_list);
 769         msta->vif = mvif;
 770         msta->wcid.sta = 1;
 771         msta->wcid.idx = idx;
 772         msta->wcid.phy_idx = mvif->mt76.band_idx;
 773         msta->wcid.tx_info |= MT_WCID_TX_INFO_SET;
 774         msta->last_txs = jiffies;
 775
 776         ret = mt76_connac_pm_wake(&dev->mphy, &dev->pm);
 777         if (ret)
 778                 return ret;
 779
 780         if (vif->type == NL80211_IFTYPE_STATION)
 781                 mvif->wep_sta = msta;
 782
 783         mt7925_mac_wtbl_update(dev, idx,
 784                                MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
 785
 786         /* should update bss info before STA add */
 787         if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls)
 788                 mt7925_mcu_add_bss_info(&dev->phy, mvif->mt76.ctx, vif, sta,
 789                                         false);
 790
 791         ret = mt7925_mcu_sta_update(dev, sta, vif, true,
 792                                     MT76_STA_INFO_STATE_NONE);
 793         if (ret)
 794                 return ret;
 795
 796         mt76_connac_power_save_sched(&dev->mphy, &dev->pm);
 797
 798         return 0;
 799 }
 800 EXPORT_SYMBOL_GPL(mt7925_mac_sta_add);
 801
 802 void mt7925_mac_sta_assoc(struct mt76_dev *mdev, struct ieee80211_vif *vif,
 803                           struct ieee80211_sta *sta)
 804 {
 805         struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76);
 806         struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv;
 807         struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
 808
 809         mt792x_mutex_acquire(dev);
 810
 811         if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls)
 812                 mt7925_mcu_add_bss_info(&dev->phy, mvif->mt76.ctx, vif, sta,
 813                                         true);
 814
 815         ewma_avg_signal_init(&msta->avg_ack_signal);
 816
 817         mt7925_mac_wtbl_update(dev, msta->wcid.idx,
 818                                MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
 819         memset(msta->airtime_ac, 0, sizeof(msta->airtime_ac));
 820
 821         mt7925_mcu_sta_update(dev, sta, vif, true, MT76_STA_INFO_STATE_ASSOC);
 822
 823         mt792x_mutex_release(dev);
 824 }
 825 EXPORT_SYMBOL_GPL(mt7925_mac_sta_assoc);
 826
 827 void mt7925_mac_sta_remove(struct mt76_dev *mdev, struct ieee80211_vif *vif,
 828                            struct ieee80211_sta *sta)
 829 {
 830         struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76);
 831         struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv;
 832
 833         mt76_connac_free_pending_tx_skbs(&dev->pm, &msta->wcid);
 834         mt76_connac_pm_wake(&dev->mphy, &dev->pm);
 835
 836         mt7925_mcu_sta_update(dev, sta, vif, false, MT76_STA_INFO_STATE_NONE);
 837         mt7925_mac_wtbl_update(dev, msta->wcid.idx,
 838                                MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
 839
 840         if (vif->type == NL80211_IFTYPE_STATION) {
 841                 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
 842
 843                 mvif->wep_sta = NULL;
 844                 ewma_rssi_init(&mvif->rssi);
 845                 if (!sta->tdls)
 846                         mt7925_mcu_add_bss_info(&dev->phy, mvif->mt76.ctx, vif, sta,
 847                                                 false);
 848         }
 849
 850         spin_lock_bh(&mdev->sta_poll_lock);
 851         if (!list_empty(&msta->wcid.poll_list))
 852                 list_del_init(&msta->wcid.poll_list);
 853         spin_unlock_bh(&mdev->sta_poll_lock);
 854
 855         mt76_connac_power_save_sched(&dev->mphy, &dev->pm);
 856 }
 857 EXPORT_SYMBOL_GPL(mt7925_mac_sta_remove);
 858
 859 static int mt7925_set_rts_threshold(struct ieee80211_hw *hw, u32 val)
 860 {
 861         struct mt792x_dev *dev = mt792x_hw_dev(hw);
 862
 863         mt792x_mutex_acquire(dev);
 864         mt7925_mcu_set_rts_thresh(&dev->phy, val);
 865         mt792x_mutex_release(dev);
 866
 867         return 0;
 868 }
 869
 870 static int
 871 mt7925_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 872                     struct ieee80211_ampdu_params *params)
 873 {
 874         enum ieee80211_ampdu_mlme_action action = params->action;
 875         struct mt792x_dev *dev = mt792x_hw_dev(hw);
 876         struct ieee80211_sta *sta = params->sta;
 877         struct ieee80211_txq *txq = sta->txq[params->tid];
 878         struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv;
 879         u16 tid = params->tid;
 880         u16 ssn = params->ssn;
 881         struct mt76_txq *mtxq;
 882         int ret = 0;
 883
 884         if (!txq)
 885                 return -EINVAL;
 886
 887         mtxq = (struct mt76_txq *)txq->drv_priv;
 888
 889         mt792x_mutex_acquire(dev);
 890         switch (action) {
 891         case IEEE80211_AMPDU_RX_START:
 892                 mt76_rx_aggr_start(&dev->mt76, &msta->wcid, tid, ssn,
 893                                    params->buf_size);
 894                 mt7925_mcu_uni_rx_ba(dev, params, true);
 895                 break;
 896         case IEEE80211_AMPDU_RX_STOP:
 897                 mt76_rx_aggr_stop(&dev->mt76, &msta->wcid, tid);
 898                 mt7925_mcu_uni_rx_ba(dev, params, false);
 899                 break;
 900         case IEEE80211_AMPDU_TX_OPERATIONAL:
 901                 mtxq->aggr = true;
 902                 mtxq->send_bar = false;
 903                 mt7925_mcu_uni_tx_ba(dev, params, true);
 904                 break;
 905         case IEEE80211_AMPDU_TX_STOP_FLUSH:
 906         case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
 907                 mtxq->aggr = false;
 908                 clear_bit(tid, &msta->wcid.ampdu_state);
 909                 mt7925_mcu_uni_tx_ba(dev, params, false);
 910                 break;
 911         case IEEE80211_AMPDU_TX_START:
 912                 set_bit(tid, &msta->wcid.ampdu_state);
 913                 ret = IEEE80211_AMPDU_TX_START_IMMEDIATE;
 914                 break;
 915         case IEEE80211_AMPDU_TX_STOP_CONT:
 916                 mtxq->aggr = false;
 917                 clear_bit(tid, &msta->wcid.ampdu_state);
 918                 mt7925_mcu_uni_tx_ba(dev, params, false);
 919                 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
 920                 break;
 921         }
 922         mt792x_mutex_release(dev);
 923
 924         return ret;
 925 }
 926
 927 static bool is_valid_alpha2(const char *alpha2)
 928 {
 929         if (!alpha2)
 930                 return false;
 931
 932         if (alpha2[0] == '0' && alpha2[1] == '0')
 933                 return true;
 934
 935         if (isalpha(alpha2[0]) && isalpha(alpha2[1]))
 936                 return true;
 937
 938         return false;
 939 }
 940
 941 void mt7925_scan_work(struct work_struct *work)
 942 {
 943         struct mt792x_phy *phy;
 944
 945         phy = (struct mt792x_phy *)container_of(work, struct mt792x_phy,
 946                                                 scan_work.work);
 947
 948         while (true) {
 949                 struct mt76_dev *mdev = &phy->dev->mt76;
 950                 struct sk_buff *skb;
 951                 struct tlv *tlv;
 952                 int tlv_len;
 953
 954                 spin_lock_bh(&phy->dev->mt76.lock);
 955                 skb = __skb_dequeue(&phy->scan_event_list);
 956                 spin_unlock_bh(&phy->dev->mt76.lock);
 957
 958                 if (!skb)
 959                         break;
 960
 961                 skb_pull(skb, sizeof(struct mt7925_mcu_rxd) + 4);
 962                 tlv = (struct tlv *)skb->data;
 963                 tlv_len = skb->len;
 964
 965                 while (tlv_len > 0 && le16_to_cpu(tlv->len) <= tlv_len) {
 966                         struct mt7925_mcu_scan_chinfo_event *evt;
 967
 968                         switch (le16_to_cpu(tlv->tag)) {
 969                         case UNI_EVENT_SCAN_DONE_BASIC:
 970                                 if (test_and_clear_bit(MT76_HW_SCANNING, &phy->mt76->state)) {
 971                                         struct cfg80211_scan_info info = {
 972                                                 .aborted = false,
 973                                         };
 974                                         ieee80211_scan_completed(phy->mt76->hw, &info);
 975                                 }
 976                                 break;
 977                         case UNI_EVENT_SCAN_DONE_CHNLINFO:
 978                                 evt = (struct mt7925_mcu_scan_chinfo_event *)tlv->data;
 979
 980                                 if (!is_valid_alpha2(evt->alpha2))
 981                                         break;
 982
 983                                 if (mdev->alpha2[0] != '0' && mdev->alpha2[1] != '0')
 984                                         break;
 985
 986                                 mt7925_mcu_set_clc(phy->dev, evt->alpha2, ENVIRON_INDOOR);
 987
 988                                 break;
 989                         case UNI_EVENT_SCAN_DONE_NLO:
 990                                 ieee80211_sched_scan_results(phy->mt76->hw);
 991                                 break;
 992                         default:
 993                                 break;
 994                         }
 995
 996                         tlv_len -= le16_to_cpu(tlv->len);
 997                         tlv = (struct tlv *)((char *)(tlv) + le16_to_cpu(tlv->len));
 998                 }
 999
1000                 dev_kfree_skb(skb);
1001         }
1002 }
1003
1004 static int
1005 mt7925_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1006                struct ieee80211_scan_request *req)
1007 {
1008         struct mt792x_dev *dev = mt792x_hw_dev(hw);
1009         struct mt76_phy *mphy = hw->priv;
1010         int err;
1011
1012         mt792x_mutex_acquire(dev);
1013         err = mt7925_mcu_hw_scan(mphy, vif, req);
1014         mt792x_mutex_release(dev);
1015
1016         return err;
1017 }
1018
1019 static void
1020 mt7925_cancel_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
1021 {
1022         struct mt792x_dev *dev = mt792x_hw_dev(hw);
1023         struct mt76_phy *mphy = hw->priv;
1024
1025         mt792x_mutex_acquire(dev);
1026         mt7925_mcu_cancel_hw_scan(mphy, vif);
1027         mt792x_mutex_release(dev);
1028 }
1029
1030 static int
1031 mt7925_start_sched_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1032                         struct cfg80211_sched_scan_request *req,
1033                         struct ieee80211_scan_ies *ies)
1034 {
1035         struct mt792x_dev *dev = mt792x_hw_dev(hw);
1036         struct mt76_phy *mphy = hw->priv;
1037         int err;
1038
1039         mt792x_mutex_acquire(dev);
1040
1041         err = mt7925_mcu_sched_scan_req(mphy, vif, req);
1042         if (err < 0)
1043                 goto out;
1044
1045         err = mt7925_mcu_sched_scan_enable(mphy, vif, true);
1046 out:
1047         mt792x_mutex_release(dev);
1048
1049         return err;
1050 }
1051
1052 static int
1053 mt7925_stop_sched_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
1054 {
1055         struct mt792x_dev *dev = mt792x_hw_dev(hw);
1056         struct mt76_phy *mphy = hw->priv;
1057         int err;
1058
1059         mt792x_mutex_acquire(dev);
1060         err = mt7925_mcu_sched_scan_enable(mphy, vif, false);
1061         mt792x_mutex_release(dev);
1062
1063         return err;
1064 }
1065
1066 static int
1067 mt7925_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant)
1068 {
1069         struct mt792x_dev *dev = mt792x_hw_dev(hw);
1070         struct mt792x_phy *phy = mt792x_hw_phy(hw);
1071         int max_nss = hweight8(hw->wiphy->available_antennas_tx);
1072
1073         if (!tx_ant || tx_ant != rx_ant || ffs(tx_ant) > max_nss)
1074                 return -EINVAL;
1075
1076         if ((BIT(hweight8(tx_ant)) - 1) != tx_ant)
1077                 tx_ant = BIT(ffs(tx_ant) - 1) - 1;
1078
1079         mt792x_mutex_acquire(dev);
1080
1081         phy->mt76->antenna_mask = tx_ant;
1082         phy->mt76->chainmask = tx_ant;
1083
1084         mt76_set_stream_caps(phy->mt76, true);
1085         mt7925_set_stream_he_eht_caps(phy);
1086
1087         /* TODO: update bmc_wtbl spe_idx when antenna changes */
1088         mt792x_mutex_release(dev);
1089
1090         return 0;
1091 }
1092
1093 #ifdef CONFIG_PM
1094 static int mt7925_suspend(struct ieee80211_hw *hw,
1095                           struct cfg80211_wowlan *wowlan)
1096 {
1097         struct mt792x_dev *dev = mt792x_hw_dev(hw);
1098         struct mt792x_phy *phy = mt792x_hw_phy(hw);
1099
1100         cancel_delayed_work_sync(&phy->scan_work);
1101         cancel_delayed_work_sync(&phy->mt76->mac_work);
1102
1103         cancel_delayed_work_sync(&dev->pm.ps_work);
1104         mt76_connac_free_pending_tx_skbs(&dev->pm, NULL);
1105
1106         mt792x_mutex_acquire(dev);
1107
1108         clear_bit(MT76_STATE_RUNNING, &phy->mt76->state);
1109         ieee80211_iterate_active_interfaces(hw,
1110                                             IEEE80211_IFACE_ITER_RESUME_ALL,
1111                                             mt7925_mcu_set_suspend_iter,
1112                                             &dev->mphy);
1113
1114         mt792x_mutex_release(dev);
1115
1116         return 0;
1117 }
1118
1119 static int mt7925_resume(struct ieee80211_hw *hw)
1120 {
1121         struct mt792x_dev *dev = mt792x_hw_dev(hw);
1122         struct mt792x_phy *phy = mt792x_hw_phy(hw);
1123
1124         mt792x_mutex_acquire(dev);
1125
1126         set_bit(MT76_STATE_RUNNING, &phy->mt76->state);
1127         ieee80211_iterate_active_interfaces(hw,
1128                                             IEEE80211_IFACE_ITER_RESUME_ALL,
1129                                             mt7925_mcu_set_suspend_iter,
1130                                             &dev->mphy);
1131
1132         ieee80211_queue_delayed_work(hw, &phy->mt76->mac_work,
1133                                      MT792x_WATCHDOG_TIME);
1134
1135         mt792x_mutex_release(dev);
1136
1137         return 0;
1138 }
1139
1140 static void mt7925_set_rekey_data(struct ieee80211_hw *hw,
1141                                   struct ieee80211_vif *vif,
1142                                   struct cfg80211_gtk_rekey_data *data)
1143 {
1144         struct mt792x_dev *dev = mt792x_hw_dev(hw);
1145
1146         mt792x_mutex_acquire(dev);
1147         mt76_connac_mcu_update_gtk_rekey(hw, vif, data);
1148         mt792x_mutex_release(dev);
1149 }
1150 #endif /* CONFIG_PM */
1151
1152 static void mt7925_sta_set_decap_offload(struct ieee80211_hw *hw,
1153                                          struct ieee80211_vif *vif,
1154                                          struct ieee80211_sta *sta,
1155                                          bool enabled)
1156 {
1157         struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv;
1158         struct mt792x_dev *dev = mt792x_hw_dev(hw);
1159
1160         mt792x_mutex_acquire(dev);
1161
1162         if (enabled)
1163                 set_bit(MT_WCID_FLAG_HDR_TRANS, &msta->wcid.flags);
1164         else
1165                 clear_bit(MT_WCID_FLAG_HDR_TRANS, &msta->wcid.flags);
1166
1167         mt7925_mcu_wtbl_update_hdr_trans(dev, vif, sta);
1168
1169         mt792x_mutex_release(dev);
1170 }
1171
1172 #if IS_ENABLED(CONFIG_IPV6)
1173 static void mt7925_ipv6_addr_change(struct ieee80211_hw *hw,
1174                                     struct ieee80211_vif *vif,
1175                                     struct inet6_dev *idev)
1176 {
1177         struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
1178         struct mt792x_dev *dev = mvif->phy->dev;
1179         struct inet6_ifaddr *ifa;
1180         struct sk_buff *skb;
1181         u8 idx = 0;
1182
1183         struct {
1184                 struct {
1185                         u8 bss_idx;
1186                         u8 pad[3];
1187                 } __packed hdr;
1188                 struct mt7925_arpns_tlv arpns;
1189                 struct in6_addr ns_addrs[IEEE80211_BSS_ARP_ADDR_LIST_LEN];
1190         } req_hdr = {
1191                 .hdr = {
1192                         .bss_idx = mvif->mt76.idx,
1193                 },
1194                 .arpns = {
1195                         .tag = cpu_to_le16(UNI_OFFLOAD_OFFLOAD_ND),
1196                         .len = cpu_to_le16(sizeof(req_hdr) - 4),
1197                         .enable = true,
1198                 },
1199         };
1200
1201         read_lock_bh(&idev->lock);
1202         list_for_each_entry(ifa, &idev->addr_list, if_list) {
1203                 if (ifa->flags & IFA_F_TENTATIVE)
1204                         continue;
1205                 req_hdr.ns_addrs[idx] = ifa->addr;
1206                 if (++idx >= IEEE80211_BSS_ARP_ADDR_LIST_LEN)
1207                         break;
1208         }
1209         read_unlock_bh(&idev->lock);
1210
1211         if (!idx)
1212                 return;
1213
1214         req_hdr.arpns.ips_num = idx;
1215
1216         skb = __mt76_mcu_msg_alloc(&dev->mt76, NULL, sizeof(req_hdr),
1217                                    0, GFP_ATOMIC);
1218         if (!skb)
1219                 return;
1220
1221         skb_put_data(skb, &req_hdr, sizeof(req_hdr));
1222
1223         skb_queue_tail(&dev->ipv6_ns_list, skb);
1224
1225         ieee80211_queue_work(dev->mt76.hw, &dev->ipv6_ns_work);
1226 }
1227 #endif
1228
1229 int mt7925_set_tx_sar_pwr(struct ieee80211_hw *hw,
1230                           const struct cfg80211_sar_specs *sar)
1231 {
1232         struct mt76_phy *mphy = hw->priv;
1233
1234         if (sar) {
1235                 int err = mt76_init_sar_power(hw, sar);
1236
1237                 if (err)
1238                         return err;
1239         }
1240         mt792x_init_acpi_sar_power(mt792x_hw_phy(hw), !sar);
1241
1242         return mt7925_mcu_set_rate_txpower(mphy);
1243 }
1244
1245 static int mt7925_set_sar_specs(struct ieee80211_hw *hw,
1246                                 const struct cfg80211_sar_specs *sar)
1247 {
1248         struct mt792x_dev *dev = mt792x_hw_dev(hw);
1249         int err;
1250
1251         mt792x_mutex_acquire(dev);
1252         err = mt7925_mcu_set_clc(dev, dev->mt76.alpha2,
1253                                  dev->country_ie_env);
1254         if (err < 0)
1255                 goto out;
1256
1257         err = mt7925_set_tx_sar_pwr(hw, sar);
1258 out:
1259         mt792x_mutex_release(dev);
1260
1261         return err;
1262 }
1263
1264 static void
1265 mt7925_channel_switch_beacon(struct ieee80211_hw *hw,
1266                              struct ieee80211_vif *vif,
1267                              struct cfg80211_chan_def *chandef)
1268 {
1269         struct mt792x_dev *dev = mt792x_hw_dev(hw);
1270
1271         mt792x_mutex_acquire(dev);
1272         mt7925_mcu_uni_add_beacon_offload(dev, hw, vif, true);
1273         mt792x_mutex_release(dev);
1274 }
1275
1276 static int
1277 mt7925_start_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1278                 struct ieee80211_bss_conf *link_conf)
1279 {
1280         struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
1281         struct mt792x_dev *dev = mt792x_hw_dev(hw);
1282         int err;
1283
1284         mt792x_mutex_acquire(dev);
1285
1286         err = mt7925_mcu_add_bss_info(&dev->phy, mvif->mt76.ctx, vif, NULL,
1287                                       true);
1288         if (err)
1289                 goto out;
1290
1291         err = mt7925_mcu_set_bss_pm(dev, vif, true);
1292         if (err)
1293                 goto out;
1294
1295         err = mt7925_mcu_sta_update(dev, NULL, vif, true,
1296                                     MT76_STA_INFO_STATE_NONE);
1297 out:
1298         mt792x_mutex_release(dev);
1299
1300         return err;
1301 }
1302
1303 static void
1304 mt7925_stop_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1305                struct ieee80211_bss_conf *link_conf)
1306 {
1307         struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
1308         struct mt792x_dev *dev = mt792x_hw_dev(hw);
1309         int err;
1310
1311         mt792x_mutex_acquire(dev);
1312
1313         err = mt7925_mcu_set_bss_pm(dev, vif, false);
1314         if (err)
1315                 goto out;
1316
1317         mt7925_mcu_add_bss_info(&dev->phy, mvif->mt76.ctx, vif, NULL,
1318                                 false);
1319
1320 out:
1321         mt792x_mutex_release(dev);
1322 }
1323
1324 static int
1325 mt7925_add_chanctx(struct ieee80211_hw *hw,
1326                    struct ieee80211_chanctx_conf *ctx)
1327 {
1328         return 0;
1329 }
1330
1331 static void
1332 mt7925_remove_chanctx(struct ieee80211_hw *hw,
1333                       struct ieee80211_chanctx_conf *ctx)
1334 {
1335 }
1336
1337 static void mt7925_ctx_iter(void *priv, u8 *mac,
1338                             struct ieee80211_vif *vif)
1339 {
1340         struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
1341         struct ieee80211_chanctx_conf *ctx = priv;
1342
1343         if (ctx != mvif->mt76.ctx)
1344                 return;
1345
1346         if (vif->type == NL80211_IFTYPE_MONITOR) {
1347                 mt7925_mcu_set_sniffer(mvif->phy->dev, vif, true);
1348                 mt7925_mcu_config_sniffer(mvif, ctx);
1349         } else {
1350                 mt7925_mcu_set_chctx(mvif->phy->mt76, &mvif->mt76, ctx);
1351         }
1352 }
1353
1354 static void
1355 mt7925_change_chanctx(struct ieee80211_hw *hw,
1356                       struct ieee80211_chanctx_conf *ctx,
1357                       u32 changed)
1358 {
1359         struct mt792x_phy *phy = mt792x_hw_phy(hw);
1360
1361         mt792x_mutex_acquire(phy->dev);
1362         ieee80211_iterate_active_interfaces(phy->mt76->hw,
1363                                             IEEE80211_IFACE_ITER_ACTIVE,
1364                                             mt7925_ctx_iter, ctx);
1365         mt792x_mutex_release(phy->dev);
1366 }
1367
1368 static void mt7925_mgd_prepare_tx(struct ieee80211_hw *hw,
1369                                   struct ieee80211_vif *vif,
1370                                   struct ieee80211_prep_tx_info *info)
1371 {
1372         struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
1373         struct mt792x_dev *dev = mt792x_hw_dev(hw);
1374         u16 duration = info->duration ? info->duration :
1375                        jiffies_to_msecs(HZ);
1376
1377         mt792x_mutex_acquire(dev);
1378         mt7925_set_roc(mvif->phy, mvif, mvif->mt76.ctx->def.chan, duration,
1379                        MT7925_ROC_REQ_JOIN);
1380         mt792x_mutex_release(dev);
1381 }
1382
1383 static void mt7925_mgd_complete_tx(struct ieee80211_hw *hw,
1384                                    struct ieee80211_vif *vif,
1385                                    struct ieee80211_prep_tx_info *info)
1386 {
1387         struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
1388
1389         mt7925_abort_roc(mvif->phy, mvif);
1390 }
1391
1392 const struct ieee80211_ops mt7925_ops = {
1393         .tx = mt792x_tx,
1394         .start = mt7925_start,
1395         .stop = mt792x_stop,
1396         .add_interface = mt7925_add_interface,
1397         .remove_interface = mt792x_remove_interface,
1398         .config = mt7925_config,
1399         .conf_tx = mt792x_conf_tx,
1400         .configure_filter = mt7925_configure_filter,
1401         .bss_info_changed = mt7925_bss_info_changed,
1402         .start_ap = mt7925_start_ap,
1403         .stop_ap = mt7925_stop_ap,
1404         .sta_state = mt76_sta_state,
1405         .sta_pre_rcu_remove = mt76_sta_pre_rcu_remove,
1406         .set_key = mt7925_set_key,
1407         .sta_set_decap_offload = mt7925_sta_set_decap_offload,
1408 #if IS_ENABLED(CONFIG_IPV6)
1409         .ipv6_addr_change = mt7925_ipv6_addr_change,
1410 #endif /* CONFIG_IPV6 */
1411         .ampdu_action = mt7925_ampdu_action,
1412         .set_rts_threshold = mt7925_set_rts_threshold,
1413         .wake_tx_queue = mt76_wake_tx_queue,
1414         .release_buffered_frames = mt76_release_buffered_frames,
1415         .channel_switch_beacon = mt7925_channel_switch_beacon,
1416         .get_txpower = mt76_get_txpower,
1417         .get_stats = mt792x_get_stats,
1418         .get_et_sset_count = mt792x_get_et_sset_count,
1419         .get_et_strings = mt792x_get_et_strings,
1420         .get_et_stats = mt792x_get_et_stats,
1421         .get_tsf = mt792x_get_tsf,
1422         .set_tsf = mt792x_set_tsf,
1423         .get_survey = mt76_get_survey,
1424         .get_antenna = mt76_get_antenna,
1425         .set_antenna = mt7925_set_antenna,
1426         .set_coverage_class = mt792x_set_coverage_class,
1427         .hw_scan = mt7925_hw_scan,
1428         .cancel_hw_scan = mt7925_cancel_hw_scan,
1429         .sta_statistics = mt792x_sta_statistics,
1430         .sched_scan_start = mt7925_start_sched_scan,
1431         .sched_scan_stop = mt7925_stop_sched_scan,
1432 #ifdef CONFIG_PM
1433         .suspend = mt7925_suspend,
1434         .resume = mt7925_resume,
1435         .set_wakeup = mt792x_set_wakeup,
1436         .set_rekey_data = mt7925_set_rekey_data,
1437 #endif /* CONFIG_PM */
1438         .flush = mt792x_flush,
1439         .set_sar_specs = mt7925_set_sar_specs,
1440         .remain_on_channel = mt7925_remain_on_channel,
1441         .cancel_remain_on_channel = mt7925_cancel_remain_on_channel,
1442         .add_chanctx = mt7925_add_chanctx,
1443         .remove_chanctx = mt7925_remove_chanctx,
1444         .change_chanctx = mt7925_change_chanctx,
1445         .assign_vif_chanctx = mt792x_assign_vif_chanctx,
1446         .unassign_vif_chanctx = mt792x_unassign_vif_chanctx,
1447         .mgd_prepare_tx = mt7925_mgd_prepare_tx,
1448         .mgd_complete_tx = mt7925_mgd_complete_tx,
1449 };
1450 EXPORT_SYMBOL_GPL(mt7925_ops);
1451
1452 MODULE_AUTHOR("Deren Wu <deren.wu@mediatek.com>");
1453 MODULE_DESCRIPTION("MediaTek MT7925 core driver");
1454 MODULE_LICENSE("Dual BSD/GPL");