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
mt7915_thermal_show_temp(struct device * dev,struct device_attribute * attr,char * buf)45 static ssize_t mt7915_thermal_show_temp(struct device *dev,
46 struct device_attribute *attr,
47 char *buf)
48 {
49 struct mt7915_phy *phy = dev_get_drvdata(dev);
50 int temperature;
51
52 temperature = mt7915_mcu_get_temperature(phy);
53 if (temperature < 0)
54 return temperature;
55
56 /* display in millidegree celcius */
57 return sprintf(buf, "%u\n", temperature * 1000);
58 }
59
60 static SENSOR_DEVICE_ATTR(temp1_input, 0444, mt7915_thermal_show_temp,
61 NULL, 0);
62
63 static struct attribute *mt7915_hwmon_attrs[] = {
64 &sensor_dev_attr_temp1_input.dev_attr.attr,
65 NULL,
66 };
67 ATTRIBUTE_GROUPS(mt7915_hwmon);
68
69 static int
mt7915_thermal_get_max_throttle_state(struct thermal_cooling_device * cdev,unsigned long * state)70 mt7915_thermal_get_max_throttle_state(struct thermal_cooling_device *cdev,
71 unsigned long *state)
72 {
73 *state = MT7915_THERMAL_THROTTLE_MAX;
74
75 return 0;
76 }
77
78 static int
mt7915_thermal_get_cur_throttle_state(struct thermal_cooling_device * cdev,unsigned long * state)79 mt7915_thermal_get_cur_throttle_state(struct thermal_cooling_device *cdev,
80 unsigned long *state)
81 {
82 struct mt7915_phy *phy = cdev->devdata;
83
84 *state = phy->throttle_state;
85
86 return 0;
87 }
88
89 static int
mt7915_thermal_set_cur_throttle_state(struct thermal_cooling_device * cdev,unsigned long state)90 mt7915_thermal_set_cur_throttle_state(struct thermal_cooling_device *cdev,
91 unsigned long state)
92 {
93 struct mt7915_phy *phy = cdev->devdata;
94 int ret;
95
96 if (state > MT7915_THERMAL_THROTTLE_MAX)
97 return -EINVAL;
98
99 if (state == phy->throttle_state)
100 return 0;
101
102 ret = mt7915_mcu_set_thermal_throttling(phy, state);
103 if (ret)
104 return ret;
105
106 phy->throttle_state = state;
107
108 return 0;
109 }
110
111 static const struct thermal_cooling_device_ops mt7915_thermal_ops = {
112 .get_max_state = mt7915_thermal_get_max_throttle_state,
113 .get_cur_state = mt7915_thermal_get_cur_throttle_state,
114 .set_cur_state = mt7915_thermal_set_cur_throttle_state,
115 };
116
mt7915_unregister_thermal(struct mt7915_phy * phy)117 static void mt7915_unregister_thermal(struct mt7915_phy *phy)
118 {
119 struct wiphy *wiphy = phy->mt76->hw->wiphy;
120
121 if (!phy->cdev)
122 return;
123
124 sysfs_remove_link(&wiphy->dev.kobj, "cooling_device");
125 thermal_cooling_device_unregister(phy->cdev);
126 }
127
mt7915_thermal_init(struct mt7915_phy * phy)128 static int mt7915_thermal_init(struct mt7915_phy *phy)
129 {
130 struct wiphy *wiphy = phy->mt76->hw->wiphy;
131 struct thermal_cooling_device *cdev;
132 struct device *hwmon;
133 const char *name;
134
135 name = devm_kasprintf(&wiphy->dev, GFP_KERNEL, "mt7915_%s",
136 wiphy_name(wiphy));
137
138 cdev = thermal_cooling_device_register(name, phy, &mt7915_thermal_ops);
139 if (!IS_ERR(cdev)) {
140 if (sysfs_create_link(&wiphy->dev.kobj, &cdev->device.kobj,
141 "cooling_device") < 0)
142 thermal_cooling_device_unregister(cdev);
143 else
144 phy->cdev = cdev;
145 }
146
147 if (!IS_REACHABLE(CONFIG_HWMON))
148 return 0;
149
150 hwmon = devm_hwmon_device_register_with_groups(&wiphy->dev, name, phy,
151 mt7915_hwmon_groups);
152 if (IS_ERR(hwmon))
153 return PTR_ERR(hwmon);
154
155 return 0;
156 }
157
158 static void
mt7915_init_txpower(struct mt7915_dev * dev,struct ieee80211_supported_band * sband)159 mt7915_init_txpower(struct mt7915_dev *dev,
160 struct ieee80211_supported_band *sband)
161 {
162 int i, n_chains = hweight8(dev->mphy.antenna_mask);
163 int nss_delta = mt76_tx_power_nss_delta(n_chains);
164 int pwr_delta = mt7915_eeprom_get_power_delta(dev, sband->band);
165 struct mt76_power_limits limits;
166
167 for (i = 0; i < sband->n_channels; i++) {
168 struct ieee80211_channel *chan = &sband->channels[i];
169 u32 target_power = 0;
170 int j;
171
172 for (j = 0; j < n_chains; j++) {
173 u32 val;
174
175 val = mt7915_eeprom_get_target_power(dev, chan, j);
176 target_power = max(target_power, val);
177 }
178
179 target_power += pwr_delta;
180 target_power = mt76_get_rate_power_limits(&dev->mphy, chan,
181 &limits,
182 target_power);
183 target_power += nss_delta;
184 target_power = DIV_ROUND_UP(target_power, 2);
185 chan->max_power = min_t(int, chan->max_reg_power,
186 target_power);
187 chan->orig_mpwr = target_power;
188 }
189 }
190
191 static void
mt7915_regd_notifier(struct wiphy * wiphy,struct regulatory_request * request)192 mt7915_regd_notifier(struct wiphy *wiphy,
193 struct regulatory_request *request)
194 {
195 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
196 struct mt7915_dev *dev = mt7915_hw_dev(hw);
197 struct mt76_phy *mphy = hw->priv;
198 struct mt7915_phy *phy = mphy->priv;
199 struct cfg80211_chan_def *chandef = &mphy->chandef;
200
201 memcpy(dev->mt76.alpha2, request->alpha2, sizeof(dev->mt76.alpha2));
202 dev->mt76.region = request->dfs_region;
203
204 mt7915_init_txpower(dev, &mphy->sband_2g.sband);
205 mt7915_init_txpower(dev, &mphy->sband_5g.sband);
206
207 if (!(chandef->chan->flags & IEEE80211_CHAN_RADAR))
208 return;
209
210 mt7915_dfs_init_radar_detector(phy);
211 }
212
213 static void
mt7915_init_wiphy(struct ieee80211_hw * hw)214 mt7915_init_wiphy(struct ieee80211_hw *hw)
215 {
216 struct mt7915_phy *phy = mt7915_hw_phy(hw);
217 struct wiphy *wiphy = hw->wiphy;
218
219 hw->queues = 4;
220 hw->max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF_HE;
221 hw->max_tx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF_HE;
222 hw->netdev_features = NETIF_F_RXCSUM;
223
224 hw->radiotap_timestamp.units_pos =
225 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US;
226
227 phy->slottime = 9;
228
229 hw->sta_data_size = sizeof(struct mt7915_sta);
230 hw->vif_data_size = sizeof(struct mt7915_vif);
231
232 wiphy->iface_combinations = if_comb;
233 wiphy->n_iface_combinations = ARRAY_SIZE(if_comb);
234 wiphy->reg_notifier = mt7915_regd_notifier;
235 wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
236
237 wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_VHT_IBSS);
238
239 ieee80211_hw_set(hw, HAS_RATE_CONTROL);
240 ieee80211_hw_set(hw, SUPPORTS_TX_ENCAP_OFFLOAD);
241 ieee80211_hw_set(hw, SUPPORTS_RX_DECAP_OFFLOAD);
242 ieee80211_hw_set(hw, WANT_MONITOR_VIF);
243
244 hw->max_tx_fragments = 4;
245
246 if (phy->mt76->cap.has_2ghz)
247 phy->mt76->sband_2g.sband.ht_cap.cap |=
248 IEEE80211_HT_CAP_LDPC_CODING |
249 IEEE80211_HT_CAP_MAX_AMSDU;
250
251 if (phy->mt76->cap.has_5ghz) {
252 phy->mt76->sband_5g.sband.ht_cap.cap |=
253 IEEE80211_HT_CAP_LDPC_CODING |
254 IEEE80211_HT_CAP_MAX_AMSDU;
255 phy->mt76->sband_5g.sband.vht_cap.cap |=
256 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991 |
257 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
258 }
259
260 mt76_set_stream_caps(phy->mt76, true);
261 mt7915_set_stream_vht_txbf_caps(phy);
262 mt7915_set_stream_he_caps(phy);
263 }
264
265 static void
mt7915_mac_init_band(struct mt7915_dev * dev,u8 band)266 mt7915_mac_init_band(struct mt7915_dev *dev, u8 band)
267 {
268 u32 mask, set;
269
270 mt76_rmw_field(dev, MT_TMAC_CTCR0(band),
271 MT_TMAC_CTCR0_INS_DDLMT_REFTIME, 0x3f);
272 mt76_set(dev, MT_TMAC_CTCR0(band),
273 MT_TMAC_CTCR0_INS_DDLMT_VHT_SMPDU_EN |
274 MT_TMAC_CTCR0_INS_DDLMT_EN);
275
276 mask = MT_MDP_RCFR0_MCU_RX_MGMT |
277 MT_MDP_RCFR0_MCU_RX_CTL_NON_BAR |
278 MT_MDP_RCFR0_MCU_RX_CTL_BAR;
279 set = FIELD_PREP(MT_MDP_RCFR0_MCU_RX_MGMT, MT_MDP_TO_HIF) |
280 FIELD_PREP(MT_MDP_RCFR0_MCU_RX_CTL_NON_BAR, MT_MDP_TO_HIF) |
281 FIELD_PREP(MT_MDP_RCFR0_MCU_RX_CTL_BAR, MT_MDP_TO_HIF);
282 mt76_rmw(dev, MT_MDP_BNRCFR0(band), mask, set);
283
284 mask = MT_MDP_RCFR1_MCU_RX_BYPASS |
285 MT_MDP_RCFR1_RX_DROPPED_UCAST |
286 MT_MDP_RCFR1_RX_DROPPED_MCAST;
287 set = FIELD_PREP(MT_MDP_RCFR1_MCU_RX_BYPASS, MT_MDP_TO_HIF) |
288 FIELD_PREP(MT_MDP_RCFR1_RX_DROPPED_UCAST, MT_MDP_TO_HIF) |
289 FIELD_PREP(MT_MDP_RCFR1_RX_DROPPED_MCAST, MT_MDP_TO_HIF);
290 mt76_rmw(dev, MT_MDP_BNRCFR1(band), mask, set);
291
292 mt76_set(dev, MT_WF_RMAC_MIB_AIRTIME0(band), MT_WF_RMAC_MIB_RXTIME_EN);
293
294 mt76_rmw_field(dev, MT_DMA_DCR0(band), MT_DMA_DCR0_MAX_RX_LEN, 1536);
295 /* disable rx rate report by default due to hw issues */
296 mt76_clear(dev, MT_DMA_DCR0(band), MT_DMA_DCR0_RXD_G5_EN);
297 }
298
mt7915_mac_init(struct mt7915_dev * dev)299 static void mt7915_mac_init(struct mt7915_dev *dev)
300 {
301 int i;
302
303 mt76_rmw_field(dev, MT_MDP_DCR1, MT_MDP_DCR1_MAX_RX_LEN, 1536);
304 /* enable hardware de-agg */
305 mt76_set(dev, MT_MDP_DCR0, MT_MDP_DCR0_DAMSDU_EN);
306
307 for (i = 0; i < MT7915_WTBL_SIZE; i++)
308 mt7915_mac_wtbl_update(dev, i,
309 MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
310 for (i = 0; i < 2; i++)
311 mt7915_mac_init_band(dev, i);
312 }
313
mt7915_txbf_init(struct mt7915_dev * dev)314 static int mt7915_txbf_init(struct mt7915_dev *dev)
315 {
316 int ret;
317
318 if (dev->dbdc_support) {
319 ret = mt7915_mcu_set_txbf(dev, MT_BF_MODULE_UPDATE);
320 if (ret)
321 return ret;
322 }
323
324 /* trigger sounding packets */
325 ret = mt7915_mcu_set_txbf(dev, MT_BF_SOUNDING_ON);
326 if (ret)
327 return ret;
328
329 /* enable eBF */
330 return mt7915_mcu_set_txbf(dev, MT_BF_TYPE_UPDATE);
331 }
332
mt7915_register_ext_phy(struct mt7915_dev * dev)333 static int mt7915_register_ext_phy(struct mt7915_dev *dev)
334 {
335 struct mt7915_phy *phy = mt7915_ext_phy(dev);
336 struct mt76_phy *mphy;
337 int ret;
338
339 if (!dev->dbdc_support)
340 return 0;
341
342 if (phy)
343 return 0;
344
345 mphy = mt76_alloc_phy(&dev->mt76, sizeof(*phy), &mt7915_ops);
346 if (!mphy)
347 return -ENOMEM;
348
349 phy = mphy->priv;
350 phy->dev = dev;
351 phy->mt76 = mphy;
352 mphy->chainmask = dev->chainmask & ~dev->mphy.chainmask;
353 mphy->antenna_mask = BIT(hweight8(mphy->chainmask)) - 1;
354
355 INIT_LIST_HEAD(&phy->stats_list);
356 INIT_DELAYED_WORK(&mphy->mac_work, mt7915_mac_work);
357
358 mt7915_eeprom_parse_band_config(phy);
359 mt7915_init_wiphy(mphy->hw);
360
361 memcpy(mphy->macaddr, dev->mt76.eeprom.data + MT_EE_MAC_ADDR2,
362 ETH_ALEN);
363 mt76_eeprom_override(mphy);
364
365 ret = mt7915_init_tx_queues(phy, MT7915_TXQ_BAND1,
366 MT7915_TX_RING_SIZE);
367 if (ret)
368 goto error;
369
370 ret = mt76_register_phy(mphy, true, mt76_rates,
371 ARRAY_SIZE(mt76_rates));
372 if (ret)
373 goto error;
374
375 ret = mt7915_thermal_init(phy);
376 if (ret)
377 goto error;
378
379 return 0;
380
381 error:
382 ieee80211_free_hw(mphy->hw);
383 return ret;
384 }
385
mt7915_init_work(struct work_struct * work)386 static void mt7915_init_work(struct work_struct *work)
387 {
388 struct mt7915_dev *dev = container_of(work, struct mt7915_dev,
389 init_work);
390
391 mt7915_mcu_set_eeprom(dev);
392 mt7915_mac_init(dev);
393 mt7915_init_txpower(dev, &dev->mphy.sband_2g.sband);
394 mt7915_init_txpower(dev, &dev->mphy.sband_5g.sband);
395 mt7915_txbf_init(dev);
396 }
397
mt7915_wfsys_reset(struct mt7915_dev * dev)398 static void mt7915_wfsys_reset(struct mt7915_dev *dev)
399 {
400 u32 val = MT_TOP_PWR_KEY | MT_TOP_PWR_SW_PWR_ON | MT_TOP_PWR_PWR_ON;
401
402 #define MT_MCU_DUMMY_RANDOM GENMASK(15, 0)
403 #define MT_MCU_DUMMY_DEFAULT GENMASK(31, 16)
404
405 mt76_wr(dev, MT_MCU_WFDMA0_DUMMY_CR, MT_MCU_DUMMY_RANDOM);
406
407 /* change to software control */
408 val |= MT_TOP_PWR_SW_RST;
409 mt76_wr(dev, MT_TOP_PWR_CTRL, val);
410
411 /* reset wfsys */
412 val &= ~MT_TOP_PWR_SW_RST;
413 mt76_wr(dev, MT_TOP_PWR_CTRL, val);
414
415 /* release wfsys then mcu re-excutes romcode */
416 val |= MT_TOP_PWR_SW_RST;
417 mt76_wr(dev, MT_TOP_PWR_CTRL, val);
418
419 /* switch to hw control */
420 val &= ~MT_TOP_PWR_SW_RST;
421 val |= MT_TOP_PWR_HW_CTRL;
422 mt76_wr(dev, MT_TOP_PWR_CTRL, val);
423
424 /* check whether mcu resets to default */
425 if (!mt76_poll_msec(dev, MT_MCU_WFDMA0_DUMMY_CR, MT_MCU_DUMMY_DEFAULT,
426 MT_MCU_DUMMY_DEFAULT, 1000)) {
427 dev_err(dev->mt76.dev, "wifi subsystem reset failure\n");
428 return;
429 }
430
431 /* wfsys reset won't clear host registers */
432 mt76_clear(dev, MT_TOP_MISC, MT_TOP_MISC_FW_STATE);
433
434 msleep(100);
435 }
436
mt7915_init_hardware(struct mt7915_dev * dev)437 static int mt7915_init_hardware(struct mt7915_dev *dev)
438 {
439 int ret, idx;
440
441 mt76_wr(dev, MT_INT_SOURCE_CSR, ~0);
442
443 INIT_WORK(&dev->init_work, mt7915_init_work);
444 dev->dbdc_support = !!(mt76_rr(dev, MT_HW_BOUND) & BIT(5));
445
446 /* If MCU was already running, it is likely in a bad state */
447 if (mt76_get_field(dev, MT_TOP_MISC, MT_TOP_MISC_FW_STATE) >
448 FW_STATE_FW_DOWNLOAD)
449 mt7915_wfsys_reset(dev);
450
451 ret = mt7915_dma_init(dev);
452 if (ret)
453 return ret;
454
455 set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state);
456
457 /*
458 * force firmware operation mode into normal state,
459 * which should be set before firmware download stage.
460 */
461 mt76_wr(dev, MT_SWDEF_MODE, MT_SWDEF_NORMAL_MODE);
462
463 ret = mt7915_mcu_init(dev);
464 if (ret) {
465 /* Reset and try again */
466 mt7915_wfsys_reset(dev);
467
468 ret = mt7915_mcu_init(dev);
469 if (ret)
470 return ret;
471 }
472
473 ret = mt7915_eeprom_init(dev);
474 if (ret < 0)
475 return ret;
476
477
478 if (dev->flash_mode) {
479 ret = mt7915_mcu_apply_group_cal(dev);
480 if (ret)
481 return ret;
482 }
483
484 /* Beacon and mgmt frames should occupy wcid 0 */
485 idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7915_WTBL_STA - 1);
486 if (idx)
487 return -ENOSPC;
488
489 dev->mt76.global_wcid.idx = idx;
490 dev->mt76.global_wcid.hw_key_idx = -1;
491 dev->mt76.global_wcid.tx_info |= MT_WCID_TX_INFO_SET;
492 rcu_assign_pointer(dev->mt76.wcid[idx], &dev->mt76.global_wcid);
493
494 return 0;
495 }
496
mt7915_set_stream_vht_txbf_caps(struct mt7915_phy * phy)497 void mt7915_set_stream_vht_txbf_caps(struct mt7915_phy *phy)
498 {
499 int nss;
500 u32 *cap;
501
502 if (!phy->mt76->cap.has_5ghz)
503 return;
504
505 nss = hweight8(phy->mt76->chainmask);
506 cap = &phy->mt76->sband_5g.sband.vht_cap.cap;
507
508 *cap |= IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
509 IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE |
510 (3 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT);
511
512 *cap &= ~(IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK |
513 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
514 IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE);
515
516 if (nss < 2)
517 return;
518
519 *cap |= IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
520 IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE |
521 FIELD_PREP(IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK,
522 nss - 1);
523 }
524
525 static void
mt7915_set_stream_he_txbf_caps(struct ieee80211_sta_he_cap * he_cap,int vif,int nss)526 mt7915_set_stream_he_txbf_caps(struct ieee80211_sta_he_cap *he_cap,
527 int vif, int nss)
528 {
529 struct ieee80211_he_cap_elem *elem = &he_cap->he_cap_elem;
530 struct ieee80211_he_mcs_nss_supp *mcs = &he_cap->he_mcs_nss_supp;
531 u8 c;
532
533 #ifdef CONFIG_MAC80211_MESH
534 if (vif == NL80211_IFTYPE_MESH_POINT)
535 return;
536 #endif
537
538 elem->phy_cap_info[3] &= ~IEEE80211_HE_PHY_CAP3_SU_BEAMFORMER;
539 elem->phy_cap_info[4] &= ~IEEE80211_HE_PHY_CAP4_MU_BEAMFORMER;
540
541 c = IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_MASK |
542 IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_MASK;
543 elem->phy_cap_info[5] &= ~c;
544
545 c = IEEE80211_HE_PHY_CAP6_TRIG_SU_BEAMFORMING_FB |
546 IEEE80211_HE_PHY_CAP6_TRIG_MU_BEAMFORMING_PARTIAL_BW_FB;
547 elem->phy_cap_info[6] &= ~c;
548
549 elem->phy_cap_info[7] &= ~IEEE80211_HE_PHY_CAP7_MAX_NC_MASK;
550
551 c = IEEE80211_HE_PHY_CAP2_NDP_4x_LTF_AND_3_2US |
552 IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO |
553 IEEE80211_HE_PHY_CAP2_UL_MU_PARTIAL_MU_MIMO;
554 elem->phy_cap_info[2] |= c;
555
556 c = IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE |
557 IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_4 |
558 IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_4;
559 elem->phy_cap_info[4] |= c;
560
561 /* do not support NG16 due to spec D4.0 changes subcarrier idx */
562 c = IEEE80211_HE_PHY_CAP6_CODEBOOK_SIZE_42_SU |
563 IEEE80211_HE_PHY_CAP6_CODEBOOK_SIZE_75_MU;
564
565 if (vif == NL80211_IFTYPE_STATION)
566 c |= IEEE80211_HE_PHY_CAP6_PARTIAL_BANDWIDTH_DL_MUMIMO;
567
568 elem->phy_cap_info[6] |= c;
569
570 if (nss < 2)
571 return;
572
573 /* the maximum cap is 4 x 3, (Nr, Nc) = (3, 2) */
574 elem->phy_cap_info[7] |= min_t(int, nss - 1, 2) << 3;
575
576 if (vif != NL80211_IFTYPE_AP)
577 return;
578
579 elem->phy_cap_info[3] |= IEEE80211_HE_PHY_CAP3_SU_BEAMFORMER;
580 elem->phy_cap_info[4] |= IEEE80211_HE_PHY_CAP4_MU_BEAMFORMER;
581
582 /* num_snd_dim */
583 c = (nss - 1) | (max_t(int, le16_to_cpu(mcs->tx_mcs_160), 1) << 3);
584 elem->phy_cap_info[5] |= c;
585
586 c = IEEE80211_HE_PHY_CAP6_TRIG_SU_BEAMFORMING_FB |
587 IEEE80211_HE_PHY_CAP6_TRIG_MU_BEAMFORMING_PARTIAL_BW_FB;
588 elem->phy_cap_info[6] |= c;
589 }
590
591 static void
mt7915_gen_ppe_thresh(u8 * he_ppet,int nss)592 mt7915_gen_ppe_thresh(u8 *he_ppet, int nss)
593 {
594 u8 i, ppet_bits, ppet_size, ru_bit_mask = 0x7; /* HE80 */
595 u8 ppet16_ppet8_ru3_ru0[] = {0x1c, 0xc7, 0x71};
596
597 he_ppet[0] = FIELD_PREP(IEEE80211_PPE_THRES_NSS_MASK, nss - 1) |
598 FIELD_PREP(IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK,
599 ru_bit_mask);
600
601 ppet_bits = IEEE80211_PPE_THRES_INFO_PPET_SIZE *
602 nss * hweight8(ru_bit_mask) * 2;
603 ppet_size = DIV_ROUND_UP(ppet_bits, 8);
604
605 for (i = 0; i < ppet_size - 1; i++)
606 he_ppet[i + 1] = ppet16_ppet8_ru3_ru0[i % 3];
607
608 he_ppet[i + 1] = ppet16_ppet8_ru3_ru0[i % 3] &
609 (0xff >> (8 - (ppet_bits - 1) % 8));
610 }
611
612 static int
mt7915_init_he_caps(struct mt7915_phy * phy,enum nl80211_band band,struct ieee80211_sband_iftype_data * data)613 mt7915_init_he_caps(struct mt7915_phy *phy, enum nl80211_band band,
614 struct ieee80211_sband_iftype_data *data)
615 {
616 int i, idx = 0, nss = hweight8(phy->mt76->chainmask);
617 u16 mcs_map = 0;
618
619 for (i = 0; i < 8; i++) {
620 if (i < nss)
621 mcs_map |= (IEEE80211_HE_MCS_SUPPORT_0_11 << (i * 2));
622 else
623 mcs_map |= (IEEE80211_HE_MCS_NOT_SUPPORTED << (i * 2));
624 }
625
626 for (i = 0; i < NUM_NL80211_IFTYPES; i++) {
627 struct ieee80211_sta_he_cap *he_cap = &data[idx].he_cap;
628 struct ieee80211_he_cap_elem *he_cap_elem =
629 &he_cap->he_cap_elem;
630 struct ieee80211_he_mcs_nss_supp *he_mcs =
631 &he_cap->he_mcs_nss_supp;
632
633 switch (i) {
634 case NL80211_IFTYPE_STATION:
635 case NL80211_IFTYPE_AP:
636 #ifdef CONFIG_MAC80211_MESH
637 case NL80211_IFTYPE_MESH_POINT:
638 #endif
639 break;
640 default:
641 continue;
642 }
643
644 data[idx].types_mask = BIT(i);
645 he_cap->has_he = true;
646
647 he_cap_elem->mac_cap_info[0] =
648 IEEE80211_HE_MAC_CAP0_HTC_HE;
649 he_cap_elem->mac_cap_info[3] =
650 IEEE80211_HE_MAC_CAP3_OMI_CONTROL |
651 IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3;
652 he_cap_elem->mac_cap_info[4] =
653 IEEE80211_HE_MAC_CAP4_AMSDU_IN_AMPDU;
654
655 if (band == NL80211_BAND_2GHZ)
656 he_cap_elem->phy_cap_info[0] =
657 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G;
658 else if (band == NL80211_BAND_5GHZ)
659 he_cap_elem->phy_cap_info[0] =
660 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G |
661 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G |
662 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G;
663
664 he_cap_elem->phy_cap_info[1] =
665 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD;
666 he_cap_elem->phy_cap_info[2] =
667 IEEE80211_HE_PHY_CAP2_STBC_TX_UNDER_80MHZ |
668 IEEE80211_HE_PHY_CAP2_STBC_RX_UNDER_80MHZ;
669
670 switch (i) {
671 case NL80211_IFTYPE_AP:
672 he_cap_elem->mac_cap_info[2] |=
673 IEEE80211_HE_MAC_CAP2_BSR;
674 he_cap_elem->mac_cap_info[4] |=
675 IEEE80211_HE_MAC_CAP4_BQR;
676 he_cap_elem->mac_cap_info[5] |=
677 IEEE80211_HE_MAC_CAP5_OM_CTRL_UL_MU_DATA_DIS_RX;
678 he_cap_elem->phy_cap_info[3] |=
679 IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK |
680 IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK;
681 he_cap_elem->phy_cap_info[6] |=
682 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT;
683 break;
684 case NL80211_IFTYPE_STATION:
685 he_cap_elem->mac_cap_info[1] |=
686 IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US;
687
688 if (band == NL80211_BAND_2GHZ)
689 he_cap_elem->phy_cap_info[0] |=
690 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_RU_MAPPING_IN_2G;
691 else if (band == NL80211_BAND_5GHZ)
692 he_cap_elem->phy_cap_info[0] |=
693 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_RU_MAPPING_IN_5G;
694
695 he_cap_elem->phy_cap_info[1] |=
696 IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A |
697 IEEE80211_HE_PHY_CAP1_HE_LTF_AND_GI_FOR_HE_PPDUS_0_8US;
698 he_cap_elem->phy_cap_info[3] |=
699 IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK |
700 IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK;
701 he_cap_elem->phy_cap_info[6] |=
702 IEEE80211_HE_PHY_CAP6_TRIG_CQI_FB |
703 IEEE80211_HE_PHY_CAP6_PARTIAL_BW_EXT_RANGE |
704 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT;
705 he_cap_elem->phy_cap_info[7] |=
706 IEEE80211_HE_PHY_CAP7_POWER_BOOST_FACTOR_SUPP |
707 IEEE80211_HE_PHY_CAP7_HE_SU_MU_PPDU_4XLTF_AND_08_US_GI;
708 he_cap_elem->phy_cap_info[8] |=
709 IEEE80211_HE_PHY_CAP8_20MHZ_IN_40MHZ_HE_PPDU_IN_2G |
710 IEEE80211_HE_PHY_CAP8_20MHZ_IN_160MHZ_HE_PPDU |
711 IEEE80211_HE_PHY_CAP8_80MHZ_IN_160MHZ_HE_PPDU |
712 IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_484;
713 he_cap_elem->phy_cap_info[9] |=
714 IEEE80211_HE_PHY_CAP9_LONGER_THAN_16_SIGB_OFDM_SYM |
715 IEEE80211_HE_PHY_CAP9_NON_TRIGGERED_CQI_FEEDBACK |
716 IEEE80211_HE_PHY_CAP9_TX_1024_QAM_LESS_THAN_242_TONE_RU |
717 IEEE80211_HE_PHY_CAP9_RX_1024_QAM_LESS_THAN_242_TONE_RU |
718 IEEE80211_HE_PHY_CAP9_RX_FULL_BW_SU_USING_MU_WITH_COMP_SIGB |
719 IEEE80211_HE_PHY_CAP9_RX_FULL_BW_SU_USING_MU_WITH_NON_COMP_SIGB;
720 break;
721 }
722
723 he_mcs->rx_mcs_80 = cpu_to_le16(mcs_map);
724 he_mcs->tx_mcs_80 = cpu_to_le16(mcs_map);
725 he_mcs->rx_mcs_160 = cpu_to_le16(mcs_map);
726 he_mcs->tx_mcs_160 = cpu_to_le16(mcs_map);
727 he_mcs->rx_mcs_80p80 = cpu_to_le16(mcs_map);
728 he_mcs->tx_mcs_80p80 = cpu_to_le16(mcs_map);
729
730 mt7915_set_stream_he_txbf_caps(he_cap, i, nss);
731
732 memset(he_cap->ppe_thres, 0, sizeof(he_cap->ppe_thres));
733 if (he_cap_elem->phy_cap_info[6] &
734 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) {
735 mt7915_gen_ppe_thresh(he_cap->ppe_thres, nss);
736 } else {
737 he_cap_elem->phy_cap_info[9] |=
738 IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_16US;
739 }
740 idx++;
741 }
742
743 return idx;
744 }
745
mt7915_set_stream_he_caps(struct mt7915_phy * phy)746 void mt7915_set_stream_he_caps(struct mt7915_phy *phy)
747 {
748 struct ieee80211_sband_iftype_data *data;
749 struct ieee80211_supported_band *band;
750 int n;
751
752 if (phy->mt76->cap.has_2ghz) {
753 data = phy->iftype[NL80211_BAND_2GHZ];
754 n = mt7915_init_he_caps(phy, NL80211_BAND_2GHZ, data);
755
756 band = &phy->mt76->sband_2g.sband;
757 band->iftype_data = data;
758 band->n_iftype_data = n;
759 }
760
761 if (phy->mt76->cap.has_5ghz) {
762 data = phy->iftype[NL80211_BAND_5GHZ];
763 n = mt7915_init_he_caps(phy, NL80211_BAND_5GHZ, data);
764
765 band = &phy->mt76->sband_5g.sband;
766 band->iftype_data = data;
767 band->n_iftype_data = n;
768 }
769 }
770
mt7915_unregister_ext_phy(struct mt7915_dev * dev)771 static void mt7915_unregister_ext_phy(struct mt7915_dev *dev)
772 {
773 struct mt7915_phy *phy = mt7915_ext_phy(dev);
774 struct mt76_phy *mphy = dev->mt76.phy2;
775
776 if (!phy)
777 return;
778
779 mt7915_unregister_thermal(phy);
780 mt76_unregister_phy(mphy);
781 ieee80211_free_hw(mphy->hw);
782 }
783
mt7915_register_device(struct mt7915_dev * dev)784 int mt7915_register_device(struct mt7915_dev *dev)
785 {
786 struct ieee80211_hw *hw = mt76_hw(dev);
787 int ret;
788
789 dev->phy.dev = dev;
790 dev->phy.mt76 = &dev->mt76.phy;
791 dev->mt76.phy.priv = &dev->phy;
792 INIT_LIST_HEAD(&dev->phy.stats_list);
793 INIT_WORK(&dev->rc_work, mt7915_mac_sta_rc_work);
794 INIT_DELAYED_WORK(&dev->mphy.mac_work, mt7915_mac_work);
795 INIT_LIST_HEAD(&dev->sta_rc_list);
796 INIT_LIST_HEAD(&dev->sta_poll_list);
797 spin_lock_init(&dev->sta_poll_lock);
798
799 init_waitqueue_head(&dev->reset_wait);
800 INIT_WORK(&dev->reset_work, mt7915_mac_reset_work);
801
802 ret = mt7915_init_hardware(dev);
803 if (ret)
804 return ret;
805
806 mt7915_init_wiphy(hw);
807
808 if (!dev->dbdc_support)
809 dev->mphy.sband_5g.sband.vht_cap.cap |=
810 IEEE80211_VHT_CAP_SHORT_GI_160 |
811 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ;
812
813 dev->mphy.hw->wiphy->available_antennas_rx = dev->mphy.chainmask;
814 dev->mphy.hw->wiphy->available_antennas_tx = dev->mphy.chainmask;
815 dev->phy.dfs_state = -1;
816
817 #ifdef CONFIG_NL80211_TESTMODE
818 dev->mt76.test_ops = &mt7915_testmode_ops;
819 #endif
820
821 ret = mt76_register_device(&dev->mt76, true, mt76_rates,
822 ARRAY_SIZE(mt76_rates));
823 if (ret)
824 return ret;
825
826 ret = mt7915_thermal_init(&dev->phy);
827 if (ret)
828 return ret;
829
830 ieee80211_queue_work(mt76_hw(dev), &dev->init_work);
831
832 ret = mt7915_register_ext_phy(dev);
833 if (ret)
834 return ret;
835
836 return mt7915_init_debugfs(dev);
837 }
838
mt7915_unregister_device(struct mt7915_dev * dev)839 void mt7915_unregister_device(struct mt7915_dev *dev)
840 {
841 mt7915_unregister_ext_phy(dev);
842 mt7915_unregister_thermal(&dev->phy);
843 mt76_unregister_device(&dev->mt76);
844 mt7915_mcu_exit(dev);
845 mt7915_tx_token_put(dev);
846 mt7915_dma_cleanup(dev);
847 tasklet_disable(&dev->irq_tasklet);
848
849 mt76_free_device(&dev->mt76);
850 }
851