1 // SPDX-License-Identifier: ISC 2 /* Copyright (C) 2020 MediaTek Inc. */ 3 4 #include <linux/etherdevice.h> 5 #include <linux/hwmon.h> 6 #include <linux/hwmon-sysfs.h> 7 #include <linux/thermal.h> 8 #include "mt7915.h" 9 #include "mac.h" 10 #include "mcu.h" 11 #include "eeprom.h" 12 13 static const struct ieee80211_iface_limit if_limits[] = { 14 { 15 .max = 1, 16 .types = BIT(NL80211_IFTYPE_ADHOC) 17 }, { 18 .max = 16, 19 .types = BIT(NL80211_IFTYPE_AP) 20 #ifdef CONFIG_MAC80211_MESH 21 | BIT(NL80211_IFTYPE_MESH_POINT) 22 #endif 23 }, { 24 .max = MT7915_MAX_INTERFACES, 25 .types = BIT(NL80211_IFTYPE_STATION) 26 } 27 }; 28 29 static const struct ieee80211_iface_combination if_comb[] = { 30 { 31 .limits = if_limits, 32 .n_limits = ARRAY_SIZE(if_limits), 33 .max_interfaces = MT7915_MAX_INTERFACES, 34 .num_different_channels = 1, 35 .beacon_int_infra_match = true, 36 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) | 37 BIT(NL80211_CHAN_WIDTH_20) | 38 BIT(NL80211_CHAN_WIDTH_40) | 39 BIT(NL80211_CHAN_WIDTH_80) | 40 BIT(NL80211_CHAN_WIDTH_160) | 41 BIT(NL80211_CHAN_WIDTH_80P80), 42 } 43 }; 44 45 static ssize_t mt7915_thermal_temp_show(struct device *dev, 46 struct device_attribute *attr, 47 char *buf) 48 { 49 struct mt7915_phy *phy = dev_get_drvdata(dev); 50 int i = to_sensor_dev_attr(attr)->index; 51 int temperature; 52 53 if (i) 54 return sprintf(buf, "%u\n", phy->throttle_temp[i - 1] * 1000); 55 56 temperature = mt7915_mcu_get_temperature(phy); 57 if (temperature < 0) 58 return temperature; 59 60 /* display in millidegree celcius */ 61 return sprintf(buf, "%u\n", temperature * 1000); 62 } 63 64 static ssize_t mt7915_thermal_temp_store(struct device *dev, 65 struct device_attribute *attr, 66 const char *buf, size_t count) 67 { 68 struct mt7915_phy *phy = dev_get_drvdata(dev); 69 int ret, i = to_sensor_dev_attr(attr)->index; 70 long val; 71 72 ret = kstrtol(buf, 10, &val); 73 if (ret < 0) 74 return ret; 75 76 mutex_lock(&phy->dev->mt76.mutex); 77 val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), 60, 130); 78 phy->throttle_temp[i - 1] = val; 79 mutex_unlock(&phy->dev->mt76.mutex); 80 81 return count; 82 } 83 84 static SENSOR_DEVICE_ATTR_RO(temp1_input, mt7915_thermal_temp, 0); 85 static SENSOR_DEVICE_ATTR_RW(temp1_crit, mt7915_thermal_temp, 1); 86 static SENSOR_DEVICE_ATTR_RW(temp1_max, mt7915_thermal_temp, 2); 87 88 static struct attribute *mt7915_hwmon_attrs[] = { 89 &sensor_dev_attr_temp1_input.dev_attr.attr, 90 &sensor_dev_attr_temp1_crit.dev_attr.attr, 91 &sensor_dev_attr_temp1_max.dev_attr.attr, 92 NULL, 93 }; 94 ATTRIBUTE_GROUPS(mt7915_hwmon); 95 96 static int 97 mt7915_thermal_get_max_throttle_state(struct thermal_cooling_device *cdev, 98 unsigned long *state) 99 { 100 *state = MT7915_THERMAL_THROTTLE_MAX; 101 102 return 0; 103 } 104 105 static int 106 mt7915_thermal_get_cur_throttle_state(struct thermal_cooling_device *cdev, 107 unsigned long *state) 108 { 109 struct mt7915_phy *phy = cdev->devdata; 110 111 *state = phy->throttle_state; 112 113 return 0; 114 } 115 116 static int 117 mt7915_thermal_set_cur_throttle_state(struct thermal_cooling_device *cdev, 118 unsigned long state) 119 { 120 struct mt7915_phy *phy = cdev->devdata; 121 int ret; 122 123 if (state > MT7915_THERMAL_THROTTLE_MAX) 124 return -EINVAL; 125 126 if (phy->throttle_temp[0] > phy->throttle_temp[1]) 127 return 0; 128 129 if (state == phy->throttle_state) 130 return 0; 131 132 ret = mt7915_mcu_set_thermal_throttling(phy, state); 133 if (ret) 134 return ret; 135 136 phy->throttle_state = state; 137 138 return 0; 139 } 140 141 static const struct thermal_cooling_device_ops mt7915_thermal_ops = { 142 .get_max_state = mt7915_thermal_get_max_throttle_state, 143 .get_cur_state = mt7915_thermal_get_cur_throttle_state, 144 .set_cur_state = mt7915_thermal_set_cur_throttle_state, 145 }; 146 147 static void mt7915_unregister_thermal(struct mt7915_phy *phy) 148 { 149 struct wiphy *wiphy = phy->mt76->hw->wiphy; 150 151 if (!phy->cdev) 152 return; 153 154 sysfs_remove_link(&wiphy->dev.kobj, "cooling_device"); 155 thermal_cooling_device_unregister(phy->cdev); 156 } 157 158 static int mt7915_thermal_init(struct mt7915_phy *phy) 159 { 160 struct wiphy *wiphy = phy->mt76->hw->wiphy; 161 struct thermal_cooling_device *cdev; 162 struct device *hwmon; 163 const char *name; 164 165 name = devm_kasprintf(&wiphy->dev, GFP_KERNEL, "mt7915_%s", 166 wiphy_name(wiphy)); 167 168 cdev = thermal_cooling_device_register(name, phy, &mt7915_thermal_ops); 169 if (!IS_ERR(cdev)) { 170 if (sysfs_create_link(&wiphy->dev.kobj, &cdev->device.kobj, 171 "cooling_device") < 0) 172 thermal_cooling_device_unregister(cdev); 173 else 174 phy->cdev = cdev; 175 } 176 177 if (!IS_REACHABLE(CONFIG_HWMON)) 178 return 0; 179 180 hwmon = devm_hwmon_device_register_with_groups(&wiphy->dev, name, phy, 181 mt7915_hwmon_groups); 182 if (IS_ERR(hwmon)) 183 return PTR_ERR(hwmon); 184 185 /* initialize critical/maximum high temperature */ 186 phy->throttle_temp[0] = 110; 187 phy->throttle_temp[1] = 120; 188 189 return 0; 190 } 191 192 static void mt7915_led_set_config(struct led_classdev *led_cdev, 193 u8 delay_on, u8 delay_off) 194 { 195 struct mt7915_dev *dev; 196 struct mt76_dev *mt76; 197 u32 val; 198 199 mt76 = container_of(led_cdev, struct mt76_dev, led_cdev); 200 dev = container_of(mt76, struct mt7915_dev, mt76); 201 202 /* select TX blink mode, 2: only data frames */ 203 mt76_rmw_field(dev, MT_TMAC_TCR0(0), MT_TMAC_TCR0_TX_BLINK, 2); 204 205 /* enable LED */ 206 mt76_wr(dev, MT_LED_EN(0), 1); 207 208 /* set LED Tx blink on/off time */ 209 val = FIELD_PREP(MT_LED_TX_BLINK_ON_MASK, delay_on) | 210 FIELD_PREP(MT_LED_TX_BLINK_OFF_MASK, delay_off); 211 mt76_wr(dev, MT_LED_TX_BLINK(0), val); 212 213 /* control LED */ 214 val = MT_LED_CTRL_BLINK_MODE | MT_LED_CTRL_KICK; 215 if (dev->mt76.led_al) 216 val |= MT_LED_CTRL_POLARITY; 217 218 mt76_wr(dev, MT_LED_CTRL(0), val); 219 mt76_clear(dev, MT_LED_CTRL(0), MT_LED_CTRL_KICK); 220 } 221 222 static int mt7915_led_set_blink(struct led_classdev *led_cdev, 223 unsigned long *delay_on, 224 unsigned long *delay_off) 225 { 226 u16 delta_on = 0, delta_off = 0; 227 228 #define HW_TICK 10 229 #define TO_HW_TICK(_t) (((_t) > HW_TICK) ? ((_t) / HW_TICK) : HW_TICK) 230 231 if (*delay_on) 232 delta_on = TO_HW_TICK(*delay_on); 233 if (*delay_off) 234 delta_off = TO_HW_TICK(*delay_off); 235 236 mt7915_led_set_config(led_cdev, delta_on, delta_off); 237 238 return 0; 239 } 240 241 static void mt7915_led_set_brightness(struct led_classdev *led_cdev, 242 enum led_brightness brightness) 243 { 244 if (!brightness) 245 mt7915_led_set_config(led_cdev, 0, 0xff); 246 else 247 mt7915_led_set_config(led_cdev, 0xff, 0); 248 } 249 250 static void 251 mt7915_init_txpower(struct mt7915_dev *dev, 252 struct ieee80211_supported_band *sband) 253 { 254 int i, n_chains = hweight8(dev->mphy.antenna_mask); 255 int nss_delta = mt76_tx_power_nss_delta(n_chains); 256 int pwr_delta = mt7915_eeprom_get_power_delta(dev, sband->band); 257 struct mt76_power_limits limits; 258 259 for (i = 0; i < sband->n_channels; i++) { 260 struct ieee80211_channel *chan = &sband->channels[i]; 261 u32 target_power = 0; 262 int j; 263 264 for (j = 0; j < n_chains; j++) { 265 u32 val; 266 267 val = mt7915_eeprom_get_target_power(dev, chan, j); 268 target_power = max(target_power, val); 269 } 270 271 target_power += pwr_delta; 272 target_power = mt76_get_rate_power_limits(&dev->mphy, chan, 273 &limits, 274 target_power); 275 target_power += nss_delta; 276 target_power = DIV_ROUND_UP(target_power, 2); 277 chan->max_power = min_t(int, chan->max_reg_power, 278 target_power); 279 chan->orig_mpwr = target_power; 280 } 281 } 282 283 static void 284 mt7915_regd_notifier(struct wiphy *wiphy, 285 struct regulatory_request *request) 286 { 287 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); 288 struct mt7915_dev *dev = mt7915_hw_dev(hw); 289 struct mt76_phy *mphy = hw->priv; 290 struct mt7915_phy *phy = mphy->priv; 291 struct cfg80211_chan_def *chandef = &mphy->chandef; 292 293 memcpy(dev->mt76.alpha2, request->alpha2, sizeof(dev->mt76.alpha2)); 294 dev->mt76.region = request->dfs_region; 295 296 mt7915_init_txpower(dev, &mphy->sband_2g.sband); 297 mt7915_init_txpower(dev, &mphy->sband_5g.sband); 298 299 if (!(chandef->chan->flags & IEEE80211_CHAN_RADAR)) 300 return; 301 302 mt7915_dfs_init_radar_detector(phy); 303 } 304 305 static void 306 mt7915_init_wiphy(struct ieee80211_hw *hw) 307 { 308 struct mt7915_phy *phy = mt7915_hw_phy(hw); 309 struct wiphy *wiphy = hw->wiphy; 310 311 hw->queues = 4; 312 hw->max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF; 313 hw->max_tx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF; 314 hw->netdev_features = NETIF_F_RXCSUM; 315 316 hw->radiotap_timestamp.units_pos = 317 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US; 318 319 phy->slottime = 9; 320 321 hw->sta_data_size = sizeof(struct mt7915_sta); 322 hw->vif_data_size = sizeof(struct mt7915_vif); 323 324 wiphy->iface_combinations = if_comb; 325 wiphy->n_iface_combinations = ARRAY_SIZE(if_comb); 326 wiphy->reg_notifier = mt7915_regd_notifier; 327 wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; 328 329 wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_BSS_COLOR); 330 wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_VHT_IBSS); 331 wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_BEACON_RATE_LEGACY); 332 wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_BEACON_RATE_HT); 333 wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_BEACON_RATE_VHT); 334 wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_BEACON_RATE_HE); 335 336 ieee80211_hw_set(hw, HAS_RATE_CONTROL); 337 ieee80211_hw_set(hw, SUPPORTS_TX_ENCAP_OFFLOAD); 338 ieee80211_hw_set(hw, SUPPORTS_RX_DECAP_OFFLOAD); 339 ieee80211_hw_set(hw, WANT_MONITOR_VIF); 340 341 hw->max_tx_fragments = 4; 342 343 if (phy->mt76->cap.has_2ghz) 344 phy->mt76->sband_2g.sband.ht_cap.cap |= 345 IEEE80211_HT_CAP_LDPC_CODING | 346 IEEE80211_HT_CAP_MAX_AMSDU; 347 348 if (phy->mt76->cap.has_5ghz) { 349 phy->mt76->sband_5g.sband.ht_cap.cap |= 350 IEEE80211_HT_CAP_LDPC_CODING | 351 IEEE80211_HT_CAP_MAX_AMSDU; 352 phy->mt76->sband_5g.sband.vht_cap.cap |= 353 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991 | 354 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK; 355 } 356 357 mt76_set_stream_caps(phy->mt76, true); 358 mt7915_set_stream_vht_txbf_caps(phy); 359 mt7915_set_stream_he_caps(phy); 360 } 361 362 static void 363 mt7915_mac_init_band(struct mt7915_dev *dev, u8 band) 364 { 365 u32 mask, set; 366 367 mt76_rmw_field(dev, MT_TMAC_CTCR0(band), 368 MT_TMAC_CTCR0_INS_DDLMT_REFTIME, 0x3f); 369 mt76_set(dev, MT_TMAC_CTCR0(band), 370 MT_TMAC_CTCR0_INS_DDLMT_VHT_SMPDU_EN | 371 MT_TMAC_CTCR0_INS_DDLMT_EN); 372 373 mask = MT_MDP_RCFR0_MCU_RX_MGMT | 374 MT_MDP_RCFR0_MCU_RX_CTL_NON_BAR | 375 MT_MDP_RCFR0_MCU_RX_CTL_BAR; 376 set = FIELD_PREP(MT_MDP_RCFR0_MCU_RX_MGMT, MT_MDP_TO_HIF) | 377 FIELD_PREP(MT_MDP_RCFR0_MCU_RX_CTL_NON_BAR, MT_MDP_TO_HIF) | 378 FIELD_PREP(MT_MDP_RCFR0_MCU_RX_CTL_BAR, MT_MDP_TO_HIF); 379 mt76_rmw(dev, MT_MDP_BNRCFR0(band), mask, set); 380 381 mask = MT_MDP_RCFR1_MCU_RX_BYPASS | 382 MT_MDP_RCFR1_RX_DROPPED_UCAST | 383 MT_MDP_RCFR1_RX_DROPPED_MCAST; 384 set = FIELD_PREP(MT_MDP_RCFR1_MCU_RX_BYPASS, MT_MDP_TO_HIF) | 385 FIELD_PREP(MT_MDP_RCFR1_RX_DROPPED_UCAST, MT_MDP_TO_HIF) | 386 FIELD_PREP(MT_MDP_RCFR1_RX_DROPPED_MCAST, MT_MDP_TO_HIF); 387 mt76_rmw(dev, MT_MDP_BNRCFR1(band), mask, set); 388 389 mt76_rmw_field(dev, MT_DMA_DCR0(band), MT_DMA_DCR0_MAX_RX_LEN, 0x680); 390 /* disable rx rate report by default due to hw issues */ 391 mt76_clear(dev, MT_DMA_DCR0(band), MT_DMA_DCR0_RXD_G5_EN); 392 } 393 394 static void mt7915_mac_init(struct mt7915_dev *dev) 395 { 396 int i; 397 398 mt76_rmw_field(dev, MT_MDP_DCR1, MT_MDP_DCR1_MAX_RX_LEN, 0x400); 399 /* enable hardware de-agg */ 400 mt76_set(dev, MT_MDP_DCR0, MT_MDP_DCR0_DAMSDU_EN); 401 402 for (i = 0; i < MT7915_WTBL_SIZE; i++) 403 mt7915_mac_wtbl_update(dev, i, 404 MT_WTBL_UPDATE_ADM_COUNT_CLEAR); 405 for (i = 0; i < 2; i++) 406 mt7915_mac_init_band(dev, i); 407 408 if (IS_ENABLED(CONFIG_MT76_LEDS)) { 409 i = dev->mt76.led_pin ? MT_LED_GPIO_MUX3 : MT_LED_GPIO_MUX2; 410 mt76_rmw_field(dev, i, MT_LED_GPIO_SEL_MASK, 4); 411 } 412 } 413 414 static int mt7915_txbf_init(struct mt7915_dev *dev) 415 { 416 int ret; 417 418 if (dev->dbdc_support) { 419 ret = mt7915_mcu_set_txbf(dev, MT_BF_MODULE_UPDATE); 420 if (ret) 421 return ret; 422 } 423 424 /* trigger sounding packets */ 425 ret = mt7915_mcu_set_txbf(dev, MT_BF_SOUNDING_ON); 426 if (ret) 427 return ret; 428 429 /* enable eBF */ 430 return mt7915_mcu_set_txbf(dev, MT_BF_TYPE_UPDATE); 431 } 432 433 static int mt7915_register_ext_phy(struct mt7915_dev *dev) 434 { 435 struct mt7915_phy *phy = mt7915_ext_phy(dev); 436 struct mt76_phy *mphy; 437 int ret; 438 439 if (!dev->dbdc_support) 440 return 0; 441 442 if (phy) 443 return 0; 444 445 mphy = mt76_alloc_phy(&dev->mt76, sizeof(*phy), &mt7915_ops); 446 if (!mphy) 447 return -ENOMEM; 448 449 phy = mphy->priv; 450 phy->dev = dev; 451 phy->mt76 = mphy; 452 mphy->chainmask = dev->chainmask & ~dev->mphy.chainmask; 453 mphy->antenna_mask = BIT(hweight8(mphy->chainmask)) - 1; 454 455 INIT_DELAYED_WORK(&mphy->mac_work, mt7915_mac_work); 456 457 mt7915_eeprom_parse_band_config(phy); 458 mt7915_init_wiphy(mphy->hw); 459 460 memcpy(mphy->macaddr, dev->mt76.eeprom.data + MT_EE_MAC_ADDR2, 461 ETH_ALEN); 462 mt76_eeprom_override(mphy); 463 464 ret = mt7915_init_tx_queues(phy, MT7915_TXQ_BAND1, 465 MT7915_TX_RING_SIZE); 466 if (ret) 467 goto error; 468 469 ret = mt76_register_phy(mphy, true, mt76_rates, 470 ARRAY_SIZE(mt76_rates)); 471 if (ret) 472 goto error; 473 474 ret = mt7915_thermal_init(phy); 475 if (ret) 476 goto error; 477 478 ret = mt7915_init_debugfs(phy); 479 if (ret) 480 goto error; 481 482 return 0; 483 484 error: 485 ieee80211_free_hw(mphy->hw); 486 return ret; 487 } 488 489 static void mt7915_init_work(struct work_struct *work) 490 { 491 struct mt7915_dev *dev = container_of(work, struct mt7915_dev, 492 init_work); 493 494 mt7915_mcu_set_eeprom(dev); 495 mt7915_mac_init(dev); 496 mt7915_init_txpower(dev, &dev->mphy.sband_2g.sband); 497 mt7915_init_txpower(dev, &dev->mphy.sband_5g.sband); 498 mt7915_txbf_init(dev); 499 } 500 501 static void mt7915_wfsys_reset(struct mt7915_dev *dev) 502 { 503 u32 val = MT_TOP_PWR_KEY | MT_TOP_PWR_SW_PWR_ON | MT_TOP_PWR_PWR_ON; 504 505 #define MT_MCU_DUMMY_RANDOM GENMASK(15, 0) 506 #define MT_MCU_DUMMY_DEFAULT GENMASK(31, 16) 507 508 mt76_wr(dev, MT_MCU_WFDMA0_DUMMY_CR, MT_MCU_DUMMY_RANDOM); 509 510 /* change to software control */ 511 val |= MT_TOP_PWR_SW_RST; 512 mt76_wr(dev, MT_TOP_PWR_CTRL, val); 513 514 /* reset wfsys */ 515 val &= ~MT_TOP_PWR_SW_RST; 516 mt76_wr(dev, MT_TOP_PWR_CTRL, val); 517 518 /* release wfsys then mcu re-excutes romcode */ 519 val |= MT_TOP_PWR_SW_RST; 520 mt76_wr(dev, MT_TOP_PWR_CTRL, val); 521 522 /* switch to hw control */ 523 val &= ~MT_TOP_PWR_SW_RST; 524 val |= MT_TOP_PWR_HW_CTRL; 525 mt76_wr(dev, MT_TOP_PWR_CTRL, val); 526 527 /* check whether mcu resets to default */ 528 if (!mt76_poll_msec(dev, MT_MCU_WFDMA0_DUMMY_CR, MT_MCU_DUMMY_DEFAULT, 529 MT_MCU_DUMMY_DEFAULT, 1000)) { 530 dev_err(dev->mt76.dev, "wifi subsystem reset failure\n"); 531 return; 532 } 533 534 /* wfsys reset won't clear host registers */ 535 mt76_clear(dev, MT_TOP_MISC, MT_TOP_MISC_FW_STATE); 536 537 msleep(100); 538 } 539 540 static int mt7915_init_hardware(struct mt7915_dev *dev) 541 { 542 int ret, idx; 543 544 mt76_wr(dev, MT_INT_SOURCE_CSR, ~0); 545 546 INIT_WORK(&dev->init_work, mt7915_init_work); 547 dev->dbdc_support = !!(mt76_rr(dev, MT_HW_BOUND) & BIT(5)); 548 549 /* If MCU was already running, it is likely in a bad state */ 550 if (mt76_get_field(dev, MT_TOP_MISC, MT_TOP_MISC_FW_STATE) > 551 FW_STATE_FW_DOWNLOAD) 552 mt7915_wfsys_reset(dev); 553 554 ret = mt7915_dma_init(dev); 555 if (ret) 556 return ret; 557 558 set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state); 559 560 /* 561 * force firmware operation mode into normal state, 562 * which should be set before firmware download stage. 563 */ 564 mt76_wr(dev, MT_SWDEF_MODE, MT_SWDEF_NORMAL_MODE); 565 566 ret = mt7915_mcu_init(dev); 567 if (ret) { 568 /* Reset and try again */ 569 mt7915_wfsys_reset(dev); 570 571 ret = mt7915_mcu_init(dev); 572 if (ret) 573 return ret; 574 } 575 576 ret = mt7915_eeprom_init(dev); 577 if (ret < 0) 578 return ret; 579 580 581 if (dev->flash_mode) { 582 ret = mt7915_mcu_apply_group_cal(dev); 583 if (ret) 584 return ret; 585 } 586 587 /* Beacon and mgmt frames should occupy wcid 0 */ 588 idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7915_WTBL_STA); 589 if (idx) 590 return -ENOSPC; 591 592 dev->mt76.global_wcid.idx = idx; 593 dev->mt76.global_wcid.hw_key_idx = -1; 594 dev->mt76.global_wcid.tx_info |= MT_WCID_TX_INFO_SET; 595 rcu_assign_pointer(dev->mt76.wcid[idx], &dev->mt76.global_wcid); 596 597 return 0; 598 } 599 600 void mt7915_set_stream_vht_txbf_caps(struct mt7915_phy *phy) 601 { 602 int nss; 603 u32 *cap; 604 605 if (!phy->mt76->cap.has_5ghz) 606 return; 607 608 nss = hweight8(phy->mt76->chainmask); 609 cap = &phy->mt76->sband_5g.sband.vht_cap.cap; 610 611 *cap |= IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE | 612 IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE | 613 (3 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT); 614 615 *cap &= ~(IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK | 616 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE | 617 IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE); 618 619 if (nss < 2) 620 return; 621 622 *cap |= IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE | 623 IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE | 624 FIELD_PREP(IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK, 625 nss - 1); 626 } 627 628 static void 629 mt7915_set_stream_he_txbf_caps(struct ieee80211_sta_he_cap *he_cap, 630 int vif, int nss) 631 { 632 struct ieee80211_he_cap_elem *elem = &he_cap->he_cap_elem; 633 u8 c; 634 635 #ifdef CONFIG_MAC80211_MESH 636 if (vif == NL80211_IFTYPE_MESH_POINT) 637 return; 638 #endif 639 640 elem->phy_cap_info[3] &= ~IEEE80211_HE_PHY_CAP3_SU_BEAMFORMER; 641 elem->phy_cap_info[4] &= ~IEEE80211_HE_PHY_CAP4_MU_BEAMFORMER; 642 643 c = IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_MASK | 644 IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_MASK; 645 elem->phy_cap_info[5] &= ~c; 646 647 c = IEEE80211_HE_PHY_CAP6_TRIG_SU_BEAMFORMING_FB | 648 IEEE80211_HE_PHY_CAP6_TRIG_MU_BEAMFORMING_PARTIAL_BW_FB; 649 elem->phy_cap_info[6] &= ~c; 650 651 elem->phy_cap_info[7] &= ~IEEE80211_HE_PHY_CAP7_MAX_NC_MASK; 652 653 c = IEEE80211_HE_PHY_CAP2_NDP_4x_LTF_AND_3_2US | 654 IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO | 655 IEEE80211_HE_PHY_CAP2_UL_MU_PARTIAL_MU_MIMO; 656 elem->phy_cap_info[2] |= c; 657 658 c = IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE | 659 IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_4 | 660 IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_4; 661 elem->phy_cap_info[4] |= c; 662 663 /* do not support NG16 due to spec D4.0 changes subcarrier idx */ 664 c = IEEE80211_HE_PHY_CAP6_CODEBOOK_SIZE_42_SU | 665 IEEE80211_HE_PHY_CAP6_CODEBOOK_SIZE_75_MU; 666 667 if (vif == NL80211_IFTYPE_STATION) 668 c |= IEEE80211_HE_PHY_CAP6_PARTIAL_BANDWIDTH_DL_MUMIMO; 669 670 elem->phy_cap_info[6] |= c; 671 672 if (nss < 2) 673 return; 674 675 /* the maximum cap is 4 x 3, (Nr, Nc) = (3, 2) */ 676 elem->phy_cap_info[7] |= min_t(int, nss - 1, 2) << 3; 677 678 if (vif != NL80211_IFTYPE_AP) 679 return; 680 681 elem->phy_cap_info[3] |= IEEE80211_HE_PHY_CAP3_SU_BEAMFORMER; 682 elem->phy_cap_info[4] |= IEEE80211_HE_PHY_CAP4_MU_BEAMFORMER; 683 684 /* num_snd_dim 685 * for mt7915, max supported nss is 2 for bw > 80MHz 686 */ 687 c = (nss - 1) | 688 IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_2; 689 elem->phy_cap_info[5] |= c; 690 691 c = IEEE80211_HE_PHY_CAP6_TRIG_SU_BEAMFORMING_FB | 692 IEEE80211_HE_PHY_CAP6_TRIG_MU_BEAMFORMING_PARTIAL_BW_FB; 693 elem->phy_cap_info[6] |= c; 694 } 695 696 static void 697 mt7915_gen_ppe_thresh(u8 *he_ppet, int nss) 698 { 699 u8 i, ppet_bits, ppet_size, ru_bit_mask = 0x7; /* HE80 */ 700 u8 ppet16_ppet8_ru3_ru0[] = {0x1c, 0xc7, 0x71}; 701 702 he_ppet[0] = FIELD_PREP(IEEE80211_PPE_THRES_NSS_MASK, nss - 1) | 703 FIELD_PREP(IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK, 704 ru_bit_mask); 705 706 ppet_bits = IEEE80211_PPE_THRES_INFO_PPET_SIZE * 707 nss * hweight8(ru_bit_mask) * 2; 708 ppet_size = DIV_ROUND_UP(ppet_bits, 8); 709 710 for (i = 0; i < ppet_size - 1; i++) 711 he_ppet[i + 1] = ppet16_ppet8_ru3_ru0[i % 3]; 712 713 he_ppet[i + 1] = ppet16_ppet8_ru3_ru0[i % 3] & 714 (0xff >> (8 - (ppet_bits - 1) % 8)); 715 } 716 717 static int 718 mt7915_init_he_caps(struct mt7915_phy *phy, enum nl80211_band band, 719 struct ieee80211_sband_iftype_data *data) 720 { 721 int i, idx = 0, nss = hweight8(phy->mt76->chainmask); 722 u16 mcs_map = 0; 723 u16 mcs_map_160 = 0; 724 725 for (i = 0; i < 8; i++) { 726 if (i < nss) 727 mcs_map |= (IEEE80211_HE_MCS_SUPPORT_0_11 << (i * 2)); 728 else 729 mcs_map |= (IEEE80211_HE_MCS_NOT_SUPPORTED << (i * 2)); 730 731 /* Can do 1/2 of NSS streams in 160Mhz mode. */ 732 if (i < nss / 2) 733 mcs_map_160 |= (IEEE80211_HE_MCS_SUPPORT_0_11 << (i * 2)); 734 else 735 mcs_map_160 |= (IEEE80211_HE_MCS_NOT_SUPPORTED << (i * 2)); 736 } 737 738 for (i = 0; i < NUM_NL80211_IFTYPES; i++) { 739 struct ieee80211_sta_he_cap *he_cap = &data[idx].he_cap; 740 struct ieee80211_he_cap_elem *he_cap_elem = 741 &he_cap->he_cap_elem; 742 struct ieee80211_he_mcs_nss_supp *he_mcs = 743 &he_cap->he_mcs_nss_supp; 744 745 switch (i) { 746 case NL80211_IFTYPE_STATION: 747 case NL80211_IFTYPE_AP: 748 #ifdef CONFIG_MAC80211_MESH 749 case NL80211_IFTYPE_MESH_POINT: 750 #endif 751 break; 752 default: 753 continue; 754 } 755 756 data[idx].types_mask = BIT(i); 757 he_cap->has_he = true; 758 759 he_cap_elem->mac_cap_info[0] = 760 IEEE80211_HE_MAC_CAP0_HTC_HE; 761 he_cap_elem->mac_cap_info[3] = 762 IEEE80211_HE_MAC_CAP3_OMI_CONTROL | 763 IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3; 764 he_cap_elem->mac_cap_info[4] = 765 IEEE80211_HE_MAC_CAP4_AMSDU_IN_AMPDU; 766 767 if (band == NL80211_BAND_2GHZ) 768 he_cap_elem->phy_cap_info[0] = 769 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G; 770 else if (band == NL80211_BAND_5GHZ) 771 he_cap_elem->phy_cap_info[0] = 772 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G | 773 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G | 774 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G; 775 776 he_cap_elem->phy_cap_info[1] = 777 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD; 778 he_cap_elem->phy_cap_info[2] = 779 IEEE80211_HE_PHY_CAP2_STBC_TX_UNDER_80MHZ | 780 IEEE80211_HE_PHY_CAP2_STBC_RX_UNDER_80MHZ; 781 782 switch (i) { 783 case NL80211_IFTYPE_AP: 784 he_cap_elem->mac_cap_info[0] |= 785 IEEE80211_HE_MAC_CAP0_TWT_RES; 786 he_cap_elem->mac_cap_info[2] |= 787 IEEE80211_HE_MAC_CAP2_BSR; 788 he_cap_elem->mac_cap_info[4] |= 789 IEEE80211_HE_MAC_CAP4_BQR; 790 he_cap_elem->mac_cap_info[5] |= 791 IEEE80211_HE_MAC_CAP5_OM_CTRL_UL_MU_DATA_DIS_RX; 792 he_cap_elem->phy_cap_info[3] |= 793 IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK | 794 IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK; 795 he_cap_elem->phy_cap_info[6] |= 796 IEEE80211_HE_PHY_CAP6_PARTIAL_BW_EXT_RANGE | 797 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT; 798 he_cap_elem->phy_cap_info[9] |= 799 IEEE80211_HE_PHY_CAP9_TX_1024_QAM_LESS_THAN_242_TONE_RU | 800 IEEE80211_HE_PHY_CAP9_RX_1024_QAM_LESS_THAN_242_TONE_RU; 801 break; 802 case NL80211_IFTYPE_STATION: 803 he_cap_elem->mac_cap_info[1] |= 804 IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US; 805 806 if (band == NL80211_BAND_2GHZ) 807 he_cap_elem->phy_cap_info[0] |= 808 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_RU_MAPPING_IN_2G; 809 else if (band == NL80211_BAND_5GHZ) 810 he_cap_elem->phy_cap_info[0] |= 811 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_RU_MAPPING_IN_5G; 812 813 he_cap_elem->phy_cap_info[1] |= 814 IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A | 815 IEEE80211_HE_PHY_CAP1_HE_LTF_AND_GI_FOR_HE_PPDUS_0_8US; 816 he_cap_elem->phy_cap_info[3] |= 817 IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK | 818 IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK; 819 he_cap_elem->phy_cap_info[6] |= 820 IEEE80211_HE_PHY_CAP6_TRIG_CQI_FB | 821 IEEE80211_HE_PHY_CAP6_PARTIAL_BW_EXT_RANGE | 822 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT; 823 he_cap_elem->phy_cap_info[7] |= 824 IEEE80211_HE_PHY_CAP7_POWER_BOOST_FACTOR_SUPP | 825 IEEE80211_HE_PHY_CAP7_HE_SU_MU_PPDU_4XLTF_AND_08_US_GI; 826 he_cap_elem->phy_cap_info[8] |= 827 IEEE80211_HE_PHY_CAP8_20MHZ_IN_40MHZ_HE_PPDU_IN_2G | 828 IEEE80211_HE_PHY_CAP8_20MHZ_IN_160MHZ_HE_PPDU | 829 IEEE80211_HE_PHY_CAP8_80MHZ_IN_160MHZ_HE_PPDU | 830 IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_484; 831 he_cap_elem->phy_cap_info[9] |= 832 IEEE80211_HE_PHY_CAP9_LONGER_THAN_16_SIGB_OFDM_SYM | 833 IEEE80211_HE_PHY_CAP9_NON_TRIGGERED_CQI_FEEDBACK | 834 IEEE80211_HE_PHY_CAP9_TX_1024_QAM_LESS_THAN_242_TONE_RU | 835 IEEE80211_HE_PHY_CAP9_RX_1024_QAM_LESS_THAN_242_TONE_RU | 836 IEEE80211_HE_PHY_CAP9_RX_FULL_BW_SU_USING_MU_WITH_COMP_SIGB | 837 IEEE80211_HE_PHY_CAP9_RX_FULL_BW_SU_USING_MU_WITH_NON_COMP_SIGB; 838 break; 839 } 840 841 he_mcs->rx_mcs_80 = cpu_to_le16(mcs_map); 842 he_mcs->tx_mcs_80 = cpu_to_le16(mcs_map); 843 he_mcs->rx_mcs_160 = cpu_to_le16(mcs_map_160); 844 he_mcs->tx_mcs_160 = cpu_to_le16(mcs_map_160); 845 he_mcs->rx_mcs_80p80 = cpu_to_le16(mcs_map_160); 846 he_mcs->tx_mcs_80p80 = cpu_to_le16(mcs_map_160); 847 848 mt7915_set_stream_he_txbf_caps(he_cap, i, nss); 849 850 memset(he_cap->ppe_thres, 0, sizeof(he_cap->ppe_thres)); 851 if (he_cap_elem->phy_cap_info[6] & 852 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 853 mt7915_gen_ppe_thresh(he_cap->ppe_thres, nss); 854 } else { 855 he_cap_elem->phy_cap_info[9] |= 856 u8_encode_bits(IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_16US, 857 IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK); 858 } 859 idx++; 860 } 861 862 return idx; 863 } 864 865 void mt7915_set_stream_he_caps(struct mt7915_phy *phy) 866 { 867 struct ieee80211_sband_iftype_data *data; 868 struct ieee80211_supported_band *band; 869 int n; 870 871 if (phy->mt76->cap.has_2ghz) { 872 data = phy->iftype[NL80211_BAND_2GHZ]; 873 n = mt7915_init_he_caps(phy, NL80211_BAND_2GHZ, data); 874 875 band = &phy->mt76->sband_2g.sband; 876 band->iftype_data = data; 877 band->n_iftype_data = n; 878 } 879 880 if (phy->mt76->cap.has_5ghz) { 881 data = phy->iftype[NL80211_BAND_5GHZ]; 882 n = mt7915_init_he_caps(phy, NL80211_BAND_5GHZ, data); 883 884 band = &phy->mt76->sband_5g.sband; 885 band->iftype_data = data; 886 band->n_iftype_data = n; 887 } 888 } 889 890 static void mt7915_unregister_ext_phy(struct mt7915_dev *dev) 891 { 892 struct mt7915_phy *phy = mt7915_ext_phy(dev); 893 struct mt76_phy *mphy = dev->mt76.phy2; 894 895 if (!phy) 896 return; 897 898 mt7915_unregister_thermal(phy); 899 mt76_unregister_phy(mphy); 900 ieee80211_free_hw(mphy->hw); 901 } 902 903 int mt7915_register_device(struct mt7915_dev *dev) 904 { 905 struct ieee80211_hw *hw = mt76_hw(dev); 906 int ret; 907 908 dev->phy.dev = dev; 909 dev->phy.mt76 = &dev->mt76.phy; 910 dev->mt76.phy.priv = &dev->phy; 911 INIT_WORK(&dev->rc_work, mt7915_mac_sta_rc_work); 912 INIT_DELAYED_WORK(&dev->mphy.mac_work, mt7915_mac_work); 913 INIT_LIST_HEAD(&dev->sta_rc_list); 914 INIT_LIST_HEAD(&dev->sta_poll_list); 915 INIT_LIST_HEAD(&dev->twt_list); 916 spin_lock_init(&dev->sta_poll_lock); 917 918 init_waitqueue_head(&dev->reset_wait); 919 INIT_WORK(&dev->reset_work, mt7915_mac_reset_work); 920 921 ret = mt7915_init_hardware(dev); 922 if (ret) 923 return ret; 924 925 mt7915_init_wiphy(hw); 926 927 if (!dev->dbdc_support) 928 dev->mphy.sband_5g.sband.vht_cap.cap |= 929 IEEE80211_VHT_CAP_SHORT_GI_160 | 930 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ; 931 932 dev->mphy.hw->wiphy->available_antennas_rx = dev->mphy.chainmask; 933 dev->mphy.hw->wiphy->available_antennas_tx = dev->mphy.chainmask; 934 dev->phy.dfs_state = -1; 935 936 #ifdef CONFIG_NL80211_TESTMODE 937 dev->mt76.test_ops = &mt7915_testmode_ops; 938 #endif 939 940 /* init led callbacks */ 941 if (IS_ENABLED(CONFIG_MT76_LEDS)) { 942 dev->mt76.led_cdev.brightness_set = mt7915_led_set_brightness; 943 dev->mt76.led_cdev.blink_set = mt7915_led_set_blink; 944 } 945 946 ret = mt76_register_device(&dev->mt76, true, mt76_rates, 947 ARRAY_SIZE(mt76_rates)); 948 if (ret) 949 return ret; 950 951 ret = mt7915_thermal_init(&dev->phy); 952 if (ret) 953 return ret; 954 955 ieee80211_queue_work(mt76_hw(dev), &dev->init_work); 956 957 ret = mt7915_register_ext_phy(dev); 958 if (ret) 959 return ret; 960 961 return mt7915_init_debugfs(&dev->phy); 962 } 963 964 void mt7915_unregister_device(struct mt7915_dev *dev) 965 { 966 mt7915_unregister_ext_phy(dev); 967 mt7915_unregister_thermal(&dev->phy); 968 mt76_unregister_device(&dev->mt76); 969 mt7915_mcu_exit(dev); 970 mt7915_tx_token_put(dev); 971 mt7915_dma_cleanup(dev); 972 tasklet_disable(&dev->irq_tasklet); 973 974 mt76_free_device(&dev->mt76); 975 } 976