linux/drivers/net/wireless/mediatek/mt76/mt7603/init.c
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   1// SPDX-License-Identifier: ISC
   2
   3#include <linux/etherdevice.h>
   4#include "mt7603.h"
   5#include "mac.h"
   6#include "eeprom.h"
   7
   8const struct mt76_driver_ops mt7603_drv_ops = {
   9        .txwi_size = MT_TXD_SIZE,
  10        .drv_flags = MT_DRV_SW_RX_AIRTIME,
  11        .survey_flags = SURVEY_INFO_TIME_TX,
  12        .tx_prepare_skb = mt7603_tx_prepare_skb,
  13        .tx_complete_skb = mt7603_tx_complete_skb,
  14        .rx_skb = mt7603_queue_rx_skb,
  15        .rx_poll_complete = mt7603_rx_poll_complete,
  16        .sta_ps = mt7603_sta_ps,
  17        .sta_add = mt7603_sta_add,
  18        .sta_assoc = mt7603_sta_assoc,
  19        .sta_remove = mt7603_sta_remove,
  20        .update_survey = mt7603_update_channel,
  21};
  22
  23static void
  24mt7603_set_tmac_template(struct mt7603_dev *dev)
  25{
  26        u32 desc[5] = {
  27                [1] = FIELD_PREP(MT_TXD3_REM_TX_COUNT, 0xf),
  28                [3] = MT_TXD5_SW_POWER_MGMT
  29        };
  30        u32 addr;
  31        int i;
  32
  33        addr = mt7603_reg_map(dev, MT_CLIENT_BASE_PHYS_ADDR);
  34        addr += MT_CLIENT_TMAC_INFO_TEMPLATE;
  35        for (i = 0; i < ARRAY_SIZE(desc); i++)
  36                mt76_wr(dev, addr + 4 * i, desc[i]);
  37}
  38
  39static void
  40mt7603_dma_sched_init(struct mt7603_dev *dev)
  41{
  42        int page_size = 128;
  43        int page_count;
  44        int max_len = 1792;
  45        int max_amsdu_pages = 4096 / page_size;
  46        int max_mcu_len = 4096;
  47        int max_beacon_len = 512 * 4 + max_len;
  48        int max_mcast_pages = 4 * max_len / page_size;
  49        int reserved_count = 0;
  50        int beacon_pages;
  51        int mcu_pages;
  52        int i;
  53
  54        page_count = mt76_get_field(dev, MT_PSE_FC_P0,
  55                                    MT_PSE_FC_P0_MAX_QUOTA);
  56        beacon_pages = 4 * (max_beacon_len / page_size);
  57        mcu_pages = max_mcu_len / page_size;
  58
  59        mt76_wr(dev, MT_PSE_FRP,
  60                FIELD_PREP(MT_PSE_FRP_P0, 7) |
  61                FIELD_PREP(MT_PSE_FRP_P1, 6) |
  62                FIELD_PREP(MT_PSE_FRP_P2_RQ2, 4));
  63
  64        mt76_wr(dev, MT_HIGH_PRIORITY_1, 0x55555553);
  65        mt76_wr(dev, MT_HIGH_PRIORITY_2, 0x78555555);
  66
  67        mt76_wr(dev, MT_QUEUE_PRIORITY_1, 0x2b1a096e);
  68        mt76_wr(dev, MT_QUEUE_PRIORITY_2, 0x785f4d3c);
  69
  70        mt76_wr(dev, MT_PRIORITY_MASK, 0xffffffff);
  71
  72        mt76_wr(dev, MT_SCH_1, page_count | (2 << 28));
  73        mt76_wr(dev, MT_SCH_2, max_amsdu_pages);
  74
  75        for (i = 0; i <= 4; i++)
  76                mt76_wr(dev, MT_PAGE_COUNT(i), max_amsdu_pages);
  77        reserved_count += 5 * max_amsdu_pages;
  78
  79        mt76_wr(dev, MT_PAGE_COUNT(5), mcu_pages);
  80        reserved_count += mcu_pages;
  81
  82        mt76_wr(dev, MT_PAGE_COUNT(7), beacon_pages);
  83        reserved_count += beacon_pages;
  84
  85        mt76_wr(dev, MT_PAGE_COUNT(8), max_mcast_pages);
  86        reserved_count += max_mcast_pages;
  87
  88        if (is_mt7603(dev))
  89                reserved_count = 0;
  90
  91        mt76_wr(dev, MT_RSV_MAX_THRESH, page_count - reserved_count);
  92
  93        if (is_mt7603(dev) && mt76xx_rev(dev) >= MT7603_REV_E2) {
  94                mt76_wr(dev, MT_GROUP_THRESH(0),
  95                        page_count - beacon_pages - mcu_pages);
  96                mt76_wr(dev, MT_GROUP_THRESH(1), beacon_pages);
  97                mt76_wr(dev, MT_BMAP_0, 0x0080ff5f);
  98                mt76_wr(dev, MT_GROUP_THRESH(2), mcu_pages);
  99                mt76_wr(dev, MT_BMAP_1, 0x00000020);
 100        } else {
 101                mt76_wr(dev, MT_GROUP_THRESH(0), page_count);
 102                mt76_wr(dev, MT_BMAP_0, 0xffff);
 103        }
 104
 105        mt76_wr(dev, MT_SCH_4, 0);
 106
 107        for (i = 0; i <= 15; i++)
 108                mt76_wr(dev, MT_TXTIME_THRESH(i), 0xfffff);
 109
 110        mt76_set(dev, MT_SCH_4, BIT(6));
 111}
 112
 113static void
 114mt7603_phy_init(struct mt7603_dev *dev)
 115{
 116        int rx_chains = dev->mphy.antenna_mask;
 117        int tx_chains = hweight8(rx_chains) - 1;
 118
 119        mt76_rmw(dev, MT_WF_RMAC_RMCR,
 120                 (MT_WF_RMAC_RMCR_SMPS_MODE |
 121                  MT_WF_RMAC_RMCR_RX_STREAMS),
 122                 (FIELD_PREP(MT_WF_RMAC_RMCR_SMPS_MODE, 3) |
 123                  FIELD_PREP(MT_WF_RMAC_RMCR_RX_STREAMS, rx_chains)));
 124
 125        mt76_rmw_field(dev, MT_TMAC_TCR, MT_TMAC_TCR_TX_STREAMS,
 126                       tx_chains);
 127
 128        dev->agc0 = mt76_rr(dev, MT_AGC(0));
 129        dev->agc3 = mt76_rr(dev, MT_AGC(3));
 130}
 131
 132static void
 133mt7603_mac_init(struct mt7603_dev *dev)
 134{
 135        u8 bc_addr[ETH_ALEN];
 136        u32 addr;
 137        int i;
 138
 139        mt76_wr(dev, MT_AGG_BA_SIZE_LIMIT_0,
 140                (MT_AGG_SIZE_LIMIT(0) << 0 * MT_AGG_BA_SIZE_LIMIT_SHIFT) |
 141                (MT_AGG_SIZE_LIMIT(1) << 1 * MT_AGG_BA_SIZE_LIMIT_SHIFT) |
 142                (MT_AGG_SIZE_LIMIT(2) << 2 * MT_AGG_BA_SIZE_LIMIT_SHIFT) |
 143                (MT_AGG_SIZE_LIMIT(3) << 3 * MT_AGG_BA_SIZE_LIMIT_SHIFT));
 144
 145        mt76_wr(dev, MT_AGG_BA_SIZE_LIMIT_1,
 146                (MT_AGG_SIZE_LIMIT(4) << 0 * MT_AGG_BA_SIZE_LIMIT_SHIFT) |
 147                (MT_AGG_SIZE_LIMIT(5) << 1 * MT_AGG_BA_SIZE_LIMIT_SHIFT) |
 148                (MT_AGG_SIZE_LIMIT(6) << 2 * MT_AGG_BA_SIZE_LIMIT_SHIFT) |
 149                (MT_AGG_SIZE_LIMIT(7) << 3 * MT_AGG_BA_SIZE_LIMIT_SHIFT));
 150
 151        mt76_wr(dev, MT_AGG_LIMIT,
 152                FIELD_PREP(MT_AGG_LIMIT_AC(0), 24) |
 153                FIELD_PREP(MT_AGG_LIMIT_AC(1), 24) |
 154                FIELD_PREP(MT_AGG_LIMIT_AC(2), 24) |
 155                FIELD_PREP(MT_AGG_LIMIT_AC(3), 24));
 156
 157        mt76_wr(dev, MT_AGG_LIMIT_1,
 158                FIELD_PREP(MT_AGG_LIMIT_AC(0), 24) |
 159                FIELD_PREP(MT_AGG_LIMIT_AC(1), 24) |
 160                FIELD_PREP(MT_AGG_LIMIT_AC(2), 24) |
 161                FIELD_PREP(MT_AGG_LIMIT_AC(3), 24));
 162
 163        mt76_wr(dev, MT_AGG_CONTROL,
 164                FIELD_PREP(MT_AGG_CONTROL_BAR_RATE, 0x4b) |
 165                FIELD_PREP(MT_AGG_CONTROL_CFEND_RATE, 0x69) |
 166                MT_AGG_CONTROL_NO_BA_AR_RULE);
 167
 168        mt76_wr(dev, MT_AGG_RETRY_CONTROL,
 169                FIELD_PREP(MT_AGG_RETRY_CONTROL_BAR_LIMIT, 1) |
 170                FIELD_PREP(MT_AGG_RETRY_CONTROL_RTS_LIMIT, 15));
 171
 172        mt76_wr(dev, MT_DMA_DCR0, MT_DMA_DCR0_RX_VEC_DROP |
 173                FIELD_PREP(MT_DMA_DCR0_MAX_RX_LEN, 4096));
 174
 175        mt76_rmw(dev, MT_DMA_VCFR0, BIT(0), BIT(13));
 176        mt76_rmw(dev, MT_DMA_TMCFR0, BIT(0) | BIT(1), BIT(13));
 177
 178        mt76_clear(dev, MT_WF_RMAC_TMR_PA, BIT(31));
 179
 180        mt76_set(dev, MT_WF_RMACDR, MT_WF_RMACDR_MAXLEN_20BIT);
 181        mt76_rmw(dev, MT_WF_RMAC_MAXMINLEN, 0xffffff, 0x19000);
 182
 183        mt76_wr(dev, MT_WF_RFCR1, 0);
 184
 185        mt76_set(dev, MT_TMAC_TCR, MT_TMAC_TCR_RX_RIFS_MODE);
 186
 187        mt7603_set_tmac_template(dev);
 188
 189        /* Enable RX group to HIF */
 190        addr = mt7603_reg_map(dev, MT_CLIENT_BASE_PHYS_ADDR);
 191        mt76_set(dev, addr + MT_CLIENT_RXINF, MT_CLIENT_RXINF_RXSH_GROUPS);
 192
 193        /* Enable RX group to MCU */
 194        mt76_set(dev, MT_DMA_DCR1, GENMASK(13, 11));
 195
 196        mt76_rmw_field(dev, MT_AGG_PCR_RTS, MT_AGG_PCR_RTS_PKT_THR, 3);
 197        mt76_set(dev, MT_TMAC_PCR, MT_TMAC_PCR_SPE_EN);
 198
 199        /* include preamble detection in CCA trigger signal */
 200        mt76_rmw_field(dev, MT_TXREQ, MT_TXREQ_CCA_SRC_SEL, 2);
 201
 202        mt76_wr(dev, MT_RXREQ, 4);
 203
 204        /* Configure all rx packets to HIF */
 205        mt76_wr(dev, MT_DMA_RCFR0, 0xc0000000);
 206
 207        /* Configure MCU txs selection with aggregation */
 208        mt76_wr(dev, MT_DMA_TCFR0,
 209                FIELD_PREP(MT_DMA_TCFR_TXS_AGGR_TIMEOUT, 1) | /* 32 us */
 210                MT_DMA_TCFR_TXS_AGGR_COUNT);
 211
 212        /* Configure HIF txs selection with aggregation */
 213        mt76_wr(dev, MT_DMA_TCFR1,
 214                FIELD_PREP(MT_DMA_TCFR_TXS_AGGR_TIMEOUT, 1) | /* 32 us */
 215                MT_DMA_TCFR_TXS_AGGR_COUNT | /* Maximum count */
 216                MT_DMA_TCFR_TXS_BIT_MAP);
 217
 218        mt76_wr(dev, MT_MCU_PCIE_REMAP_1, MT_PSE_WTBL_2_PHYS_ADDR);
 219
 220        for (i = 0; i < MT7603_WTBL_SIZE; i++)
 221                mt7603_wtbl_clear(dev, i);
 222
 223        eth_broadcast_addr(bc_addr);
 224        mt7603_wtbl_init(dev, MT7603_WTBL_RESERVED, -1, bc_addr);
 225        dev->global_sta.wcid.idx = MT7603_WTBL_RESERVED;
 226        rcu_assign_pointer(dev->mt76.wcid[MT7603_WTBL_RESERVED],
 227                           &dev->global_sta.wcid);
 228
 229        mt76_rmw_field(dev, MT_LPON_BTEIR, MT_LPON_BTEIR_MBSS_MODE, 2);
 230        mt76_rmw_field(dev, MT_WF_RMACDR, MT_WF_RMACDR_MBSSID_MASK, 2);
 231
 232        mt76_wr(dev, MT_AGG_ARUCR,
 233                FIELD_PREP(MT_AGG_ARxCR_LIMIT(0), 7) |
 234                FIELD_PREP(MT_AGG_ARxCR_LIMIT(1), 2) |
 235                FIELD_PREP(MT_AGG_ARxCR_LIMIT(2), 2) |
 236                FIELD_PREP(MT_AGG_ARxCR_LIMIT(3), 2) |
 237                FIELD_PREP(MT_AGG_ARxCR_LIMIT(4), 1) |
 238                FIELD_PREP(MT_AGG_ARxCR_LIMIT(5), 1) |
 239                FIELD_PREP(MT_AGG_ARxCR_LIMIT(6), 1) |
 240                FIELD_PREP(MT_AGG_ARxCR_LIMIT(7), 1));
 241
 242        mt76_wr(dev, MT_AGG_ARDCR,
 243                FIELD_PREP(MT_AGG_ARxCR_LIMIT(0), MT7603_RATE_RETRY - 1) |
 244                FIELD_PREP(MT_AGG_ARxCR_LIMIT(1), MT7603_RATE_RETRY - 1) |
 245                FIELD_PREP(MT_AGG_ARxCR_LIMIT(2), MT7603_RATE_RETRY - 1) |
 246                FIELD_PREP(MT_AGG_ARxCR_LIMIT(3), MT7603_RATE_RETRY - 1) |
 247                FIELD_PREP(MT_AGG_ARxCR_LIMIT(4), MT7603_RATE_RETRY - 1) |
 248                FIELD_PREP(MT_AGG_ARxCR_LIMIT(5), MT7603_RATE_RETRY - 1) |
 249                FIELD_PREP(MT_AGG_ARxCR_LIMIT(6), MT7603_RATE_RETRY - 1) |
 250                FIELD_PREP(MT_AGG_ARxCR_LIMIT(7), MT7603_RATE_RETRY - 1));
 251
 252        mt76_wr(dev, MT_AGG_ARCR,
 253                (FIELD_PREP(MT_AGG_ARCR_RTS_RATE_THR, 2) |
 254                 MT_AGG_ARCR_RATE_DOWN_RATIO_EN |
 255                 FIELD_PREP(MT_AGG_ARCR_RATE_DOWN_RATIO, 1) |
 256                 FIELD_PREP(MT_AGG_ARCR_RATE_UP_EXTRA_TH, 4)));
 257
 258        mt76_set(dev, MT_WTBL_RMVTCR, MT_WTBL_RMVTCR_RX_MV_MODE);
 259
 260        mt76_clear(dev, MT_SEC_SCR, MT_SEC_SCR_MASK_ORDER);
 261        mt76_clear(dev, MT_SEC_SCR, BIT(18));
 262
 263        /* Set secondary beacon time offsets */
 264        for (i = 0; i <= 4; i++)
 265                mt76_rmw_field(dev, MT_LPON_SBTOR(i), MT_LPON_SBTOR_TIME_OFFSET,
 266                               (i + 1) * (20 + 4096));
 267}
 268
 269static int
 270mt7603_init_hardware(struct mt7603_dev *dev)
 271{
 272        int i, ret;
 273
 274        mt76_wr(dev, MT_INT_SOURCE_CSR, ~0);
 275
 276        ret = mt7603_eeprom_init(dev);
 277        if (ret < 0)
 278                return ret;
 279
 280        ret = mt7603_dma_init(dev);
 281        if (ret)
 282                return ret;
 283
 284        mt76_wr(dev, MT_WPDMA_GLO_CFG, 0x52000850);
 285        mt7603_mac_dma_start(dev);
 286        dev->rxfilter = mt76_rr(dev, MT_WF_RFCR);
 287        set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state);
 288
 289        for (i = 0; i < MT7603_WTBL_SIZE; i++) {
 290                mt76_wr(dev, MT_PSE_RTA, MT_PSE_RTA_BUSY | MT_PSE_RTA_WRITE |
 291                        FIELD_PREP(MT_PSE_RTA_TAG_ID, i));
 292                mt76_poll(dev, MT_PSE_RTA, MT_PSE_RTA_BUSY, 0, 5000);
 293        }
 294
 295        ret = mt7603_mcu_init(dev);
 296        if (ret)
 297                return ret;
 298
 299        mt7603_dma_sched_init(dev);
 300        mt7603_mcu_set_eeprom(dev);
 301        mt7603_phy_init(dev);
 302        mt7603_mac_init(dev);
 303
 304        return 0;
 305}
 306
 307static const struct ieee80211_iface_limit if_limits[] = {
 308        {
 309                .max = 1,
 310                .types = BIT(NL80211_IFTYPE_ADHOC)
 311        }, {
 312                .max = MT7603_MAX_INTERFACES,
 313                .types = BIT(NL80211_IFTYPE_STATION) |
 314#ifdef CONFIG_MAC80211_MESH
 315                         BIT(NL80211_IFTYPE_MESH_POINT) |
 316#endif
 317                         BIT(NL80211_IFTYPE_P2P_CLIENT) |
 318                         BIT(NL80211_IFTYPE_P2P_GO) |
 319                         BIT(NL80211_IFTYPE_AP)
 320         },
 321};
 322
 323static const struct ieee80211_iface_combination if_comb[] = {
 324        {
 325                .limits = if_limits,
 326                .n_limits = ARRAY_SIZE(if_limits),
 327                .max_interfaces = 4,
 328                .num_different_channels = 1,
 329                .beacon_int_infra_match = true,
 330        }
 331};
 332
 333static void mt7603_led_set_config(struct mt76_dev *mt76, u8 delay_on,
 334                                  u8 delay_off)
 335{
 336        struct mt7603_dev *dev = container_of(mt76, struct mt7603_dev,
 337                                              mt76);
 338        u32 val, addr;
 339
 340        val = FIELD_PREP(MT_LED_STATUS_DURATION, 0xffff) |
 341              FIELD_PREP(MT_LED_STATUS_OFF, delay_off) |
 342              FIELD_PREP(MT_LED_STATUS_ON, delay_on);
 343
 344        addr = mt7603_reg_map(dev, MT_LED_STATUS_0(mt76->led_pin));
 345        mt76_wr(dev, addr, val);
 346        addr = mt7603_reg_map(dev, MT_LED_STATUS_1(mt76->led_pin));
 347        mt76_wr(dev, addr, val);
 348
 349        val = MT_LED_CTRL_REPLAY(mt76->led_pin) |
 350              MT_LED_CTRL_KICK(mt76->led_pin);
 351        if (mt76->led_al)
 352                val |= MT_LED_CTRL_POLARITY(mt76->led_pin);
 353        addr = mt7603_reg_map(dev, MT_LED_CTRL);
 354        mt76_wr(dev, addr, val);
 355}
 356
 357static int mt7603_led_set_blink(struct led_classdev *led_cdev,
 358                                unsigned long *delay_on,
 359                                unsigned long *delay_off)
 360{
 361        struct mt76_dev *mt76 = container_of(led_cdev, struct mt76_dev,
 362                                             led_cdev);
 363        u8 delta_on, delta_off;
 364
 365        delta_off = max_t(u8, *delay_off / 10, 1);
 366        delta_on = max_t(u8, *delay_on / 10, 1);
 367
 368        mt7603_led_set_config(mt76, delta_on, delta_off);
 369        return 0;
 370}
 371
 372static void mt7603_led_set_brightness(struct led_classdev *led_cdev,
 373                                      enum led_brightness brightness)
 374{
 375        struct mt76_dev *mt76 = container_of(led_cdev, struct mt76_dev,
 376                                             led_cdev);
 377
 378        if (!brightness)
 379                mt7603_led_set_config(mt76, 0, 0xff);
 380        else
 381                mt7603_led_set_config(mt76, 0xff, 0);
 382}
 383
 384static u32 __mt7603_reg_addr(struct mt7603_dev *dev, u32 addr)
 385{
 386        if (addr < 0x100000)
 387                return addr;
 388
 389        return mt7603_reg_map(dev, addr);
 390}
 391
 392static u32 mt7603_rr(struct mt76_dev *mdev, u32 offset)
 393{
 394        struct mt7603_dev *dev = container_of(mdev, struct mt7603_dev, mt76);
 395        u32 addr = __mt7603_reg_addr(dev, offset);
 396
 397        return dev->bus_ops->rr(mdev, addr);
 398}
 399
 400static void mt7603_wr(struct mt76_dev *mdev, u32 offset, u32 val)
 401{
 402        struct mt7603_dev *dev = container_of(mdev, struct mt7603_dev, mt76);
 403        u32 addr = __mt7603_reg_addr(dev, offset);
 404
 405        dev->bus_ops->wr(mdev, addr, val);
 406}
 407
 408static u32 mt7603_rmw(struct mt76_dev *mdev, u32 offset, u32 mask, u32 val)
 409{
 410        struct mt7603_dev *dev = container_of(mdev, struct mt7603_dev, mt76);
 411        u32 addr = __mt7603_reg_addr(dev, offset);
 412
 413        return dev->bus_ops->rmw(mdev, addr, mask, val);
 414}
 415
 416static void
 417mt7603_regd_notifier(struct wiphy *wiphy,
 418                     struct regulatory_request *request)
 419{
 420        struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
 421        struct mt7603_dev *dev = hw->priv;
 422
 423        dev->mt76.region = request->dfs_region;
 424        dev->ed_monitor = dev->ed_monitor_enabled &&
 425                          dev->mt76.region == NL80211_DFS_ETSI;
 426}
 427
 428static int
 429mt7603_txpower_signed(int val)
 430{
 431        bool sign = val & BIT(6);
 432
 433        if (!(val & BIT(7)))
 434                return 0;
 435
 436        val &= GENMASK(5, 0);
 437        if (!sign)
 438                val = -val;
 439
 440        return val;
 441}
 442
 443static void
 444mt7603_init_txpower(struct mt7603_dev *dev,
 445                    struct ieee80211_supported_band *sband)
 446{
 447        struct ieee80211_channel *chan;
 448        u8 *eeprom = (u8 *)dev->mt76.eeprom.data;
 449        int target_power = eeprom[MT_EE_TX_POWER_0_START_2G + 2] & ~BIT(7);
 450        u8 *rate_power = &eeprom[MT_EE_TX_POWER_CCK];
 451        bool ext_pa = eeprom[MT_EE_NIC_CONF_0 + 1] & BIT(1);
 452        int max_offset, cur_offset;
 453        int i;
 454
 455        if (ext_pa && is_mt7603(dev))
 456                target_power = eeprom[MT_EE_TX_POWER_TSSI_OFF] & ~BIT(7);
 457
 458        if (target_power & BIT(6))
 459                target_power = -(target_power & GENMASK(5, 0));
 460
 461        max_offset = 0;
 462        for (i = 0; i < 14; i++) {
 463                cur_offset = mt7603_txpower_signed(rate_power[i]);
 464                max_offset = max(max_offset, cur_offset);
 465        }
 466
 467        target_power += max_offset;
 468
 469        dev->tx_power_limit = target_power;
 470        dev->mphy.txpower_cur = target_power;
 471
 472        target_power = DIV_ROUND_UP(target_power, 2);
 473
 474        /* add 3 dBm for 2SS devices (combined output) */
 475        if (dev->mphy.antenna_mask & BIT(1))
 476                target_power += 3;
 477
 478        for (i = 0; i < sband->n_channels; i++) {
 479                chan = &sband->channels[i];
 480                chan->max_power = min_t(int, chan->max_reg_power, target_power);
 481                chan->orig_mpwr = target_power;
 482        }
 483}
 484
 485int mt7603_register_device(struct mt7603_dev *dev)
 486{
 487        struct mt76_bus_ops *bus_ops;
 488        struct ieee80211_hw *hw = mt76_hw(dev);
 489        struct wiphy *wiphy = hw->wiphy;
 490        int ret;
 491
 492        dev->bus_ops = dev->mt76.bus;
 493        bus_ops = devm_kmemdup(dev->mt76.dev, dev->bus_ops, sizeof(*bus_ops),
 494                               GFP_KERNEL);
 495        if (!bus_ops)
 496                return -ENOMEM;
 497
 498        bus_ops->rr = mt7603_rr;
 499        bus_ops->wr = mt7603_wr;
 500        bus_ops->rmw = mt7603_rmw;
 501        dev->mt76.bus = bus_ops;
 502
 503        INIT_LIST_HEAD(&dev->sta_poll_list);
 504        spin_lock_init(&dev->sta_poll_lock);
 505        spin_lock_init(&dev->ps_lock);
 506
 507        INIT_DELAYED_WORK(&dev->mphy.mac_work, mt7603_mac_work);
 508        tasklet_setup(&dev->mt76.pre_tbtt_tasklet, mt7603_pre_tbtt_tasklet);
 509
 510        dev->slottime = 9;
 511        dev->sensitivity_limit = 28;
 512        dev->dynamic_sensitivity = true;
 513
 514        ret = mt7603_init_hardware(dev);
 515        if (ret)
 516                return ret;
 517
 518        hw->queues = 4;
 519        hw->max_rates = 3;
 520        hw->max_report_rates = 7;
 521        hw->max_rate_tries = 11;
 522
 523        hw->radiotap_timestamp.units_pos =
 524                IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US;
 525
 526        hw->sta_data_size = sizeof(struct mt7603_sta);
 527        hw->vif_data_size = sizeof(struct mt7603_vif);
 528
 529        wiphy->iface_combinations = if_comb;
 530        wiphy->n_iface_combinations = ARRAY_SIZE(if_comb);
 531
 532        ieee80211_hw_set(hw, TX_STATUS_NO_AMPDU_LEN);
 533        ieee80211_hw_set(hw, HOST_BROADCAST_PS_BUFFERING);
 534        ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR);
 535
 536        /* init led callbacks */
 537        if (IS_ENABLED(CONFIG_MT76_LEDS)) {
 538                dev->mt76.led_cdev.brightness_set = mt7603_led_set_brightness;
 539                dev->mt76.led_cdev.blink_set = mt7603_led_set_blink;
 540        }
 541
 542        wiphy->reg_notifier = mt7603_regd_notifier;
 543
 544        ret = mt76_register_device(&dev->mt76, true, mt76_rates,
 545                                   ARRAY_SIZE(mt76_rates));
 546        if (ret)
 547                return ret;
 548
 549        mt7603_init_debugfs(dev);
 550        mt7603_init_txpower(dev, &dev->mphy.sband_2g.sband);
 551
 552        return 0;
 553}
 554
 555void mt7603_unregister_device(struct mt7603_dev *dev)
 556{
 557        tasklet_disable(&dev->mt76.pre_tbtt_tasklet);
 558        mt76_unregister_device(&dev->mt76);
 559        mt7603_mcu_exit(dev);
 560        mt7603_dma_cleanup(dev);
 561        mt76_free_device(&dev->mt76);
 562}
 563