summaryrefslogtreecommitdiff
path: root/drivers/net/wireless/mediatek/mt76/mt7915/init.c
blob: 822f3aa6bb8b521927d3bd4f4bd38e79a2a29990 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
// SPDX-License-Identifier: ISC
/* Copyright (C) 2020 MediaTek Inc. */

#include <linux/etherdevice.h>
#include "mt7915.h"
#include "mac.h"
#include "mcu.h"
#include "eeprom.h"

#define CCK_RATE(_idx, _rate) {						\
	.bitrate = _rate,						\
	.flags = IEEE80211_RATE_SHORT_PREAMBLE,				\
	.hw_value = (MT_PHY_TYPE_CCK << 8) | (_idx),			\
	.hw_value_short = (MT_PHY_TYPE_CCK << 8) | (4 + (_idx)),	\
}

#define OFDM_RATE(_idx, _rate) {					\
	.bitrate = _rate,						\
	.hw_value = (MT_PHY_TYPE_OFDM << 8) | (_idx),			\
	.hw_value_short = (MT_PHY_TYPE_OFDM << 8) | (_idx),		\
}

static struct ieee80211_rate mt7915_rates[] = {
	CCK_RATE(0, 10),
	CCK_RATE(1, 20),
	CCK_RATE(2, 55),
	CCK_RATE(3, 110),
	OFDM_RATE(11, 60),
	OFDM_RATE(15, 90),
	OFDM_RATE(10, 120),
	OFDM_RATE(14, 180),
	OFDM_RATE(9,  240),
	OFDM_RATE(13, 360),
	OFDM_RATE(8,  480),
	OFDM_RATE(12, 540),
};

static const struct ieee80211_iface_limit if_limits[] = {
	{
		.max = 1,
		.types = BIT(NL80211_IFTYPE_ADHOC)
	}, {
		.max = 16,
		.types = BIT(NL80211_IFTYPE_AP)
#ifdef CONFIG_MAC80211_MESH
			 | BIT(NL80211_IFTYPE_MESH_POINT)
#endif
	}, {
		.max = MT7915_MAX_INTERFACES,
		.types = BIT(NL80211_IFTYPE_STATION)
	}
};

static const struct ieee80211_iface_combination if_comb[] = {
	{
		.limits = if_limits,
		.n_limits = ARRAY_SIZE(if_limits),
		.max_interfaces = MT7915_MAX_INTERFACES,
		.num_different_channels = 1,
		.beacon_int_infra_match = true,
		.radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
				       BIT(NL80211_CHAN_WIDTH_20) |
				       BIT(NL80211_CHAN_WIDTH_40) |
				       BIT(NL80211_CHAN_WIDTH_80) |
				       BIT(NL80211_CHAN_WIDTH_160) |
				       BIT(NL80211_CHAN_WIDTH_80P80),
	}
};

static void
mt7915_init_txpower(struct mt7915_dev *dev,
		    struct ieee80211_supported_band *sband)
{
	int i, n_chains = hweight8(dev->mphy.antenna_mask);
	int nss_delta = mt76_tx_power_nss_delta(n_chains);
	int pwr_delta = mt7915_eeprom_get_power_delta(dev, sband->band);
	struct mt76_power_limits limits;

	for (i = 0; i < sband->n_channels; i++) {
		struct ieee80211_channel *chan = &sband->channels[i];
		u32 target_power = 0;
		int j;

		for (j = 0; j < n_chains; j++) {
			u32 val;

			val = mt7915_eeprom_get_target_power(dev, chan, j);
			target_power = max(target_power, val);
		}

		target_power += pwr_delta;
		target_power = mt76_get_rate_power_limits(&dev->mphy, chan,
							  &limits,
							  target_power);
		target_power += nss_delta;
		target_power = DIV_ROUND_UP(target_power, 2);
		chan->max_power = min_t(int, chan->max_reg_power,
					target_power);
		chan->orig_mpwr = target_power;
	}
}

static void
mt7915_regd_notifier(struct wiphy *wiphy,
		     struct regulatory_request *request)
{
	struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
	struct mt7915_dev *dev = mt7915_hw_dev(hw);
	struct mt76_phy *mphy = hw->priv;
	struct mt7915_phy *phy = mphy->priv;
	struct cfg80211_chan_def *chandef = &mphy->chandef;

	memcpy(dev->mt76.alpha2, request->alpha2, sizeof(dev->mt76.alpha2));
	dev->mt76.region = request->dfs_region;

	mt7915_init_txpower(dev, &mphy->sband_2g.sband);
	mt7915_init_txpower(dev, &mphy->sband_5g.sband);

	if (!(chandef->chan->flags & IEEE80211_CHAN_RADAR))
		return;

	mt7915_dfs_init_radar_detector(phy);
}

static void
mt7915_init_wiphy(struct ieee80211_hw *hw)
{
	struct mt7915_phy *phy = mt7915_hw_phy(hw);
	struct wiphy *wiphy = hw->wiphy;

	hw->queues = 4;
	hw->max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF;
	hw->max_tx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF;
	hw->netdev_features = NETIF_F_RXCSUM;

	hw->radiotap_timestamp.units_pos =
		IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US;

	phy->slottime = 9;

	hw->sta_data_size = sizeof(struct mt7915_sta);
	hw->vif_data_size = sizeof(struct mt7915_vif);

	wiphy->iface_combinations = if_comb;
	wiphy->n_iface_combinations = ARRAY_SIZE(if_comb);
	wiphy->reg_notifier = mt7915_regd_notifier;
	wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;

	wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_VHT_IBSS);

	ieee80211_hw_set(hw, HAS_RATE_CONTROL);
	ieee80211_hw_set(hw, SUPPORTS_TX_ENCAP_OFFLOAD);
	ieee80211_hw_set(hw, SUPPORTS_RX_DECAP_OFFLOAD);
	ieee80211_hw_set(hw, WANT_MONITOR_VIF);

	hw->max_tx_fragments = 4;

	if (phy->mt76->cap.has_2ghz)
		phy->mt76->sband_2g.sband.ht_cap.cap |=
			IEEE80211_HT_CAP_LDPC_CODING |
			IEEE80211_HT_CAP_MAX_AMSDU;

	if (phy->mt76->cap.has_5ghz) {
		phy->mt76->sband_5g.sband.ht_cap.cap |=
			IEEE80211_HT_CAP_LDPC_CODING |
			IEEE80211_HT_CAP_MAX_AMSDU;
		phy->mt76->sband_5g.sband.vht_cap.cap |=
			IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991 |
			IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
	}

	mt76_set_stream_caps(phy->mt76, true);
	mt7915_set_stream_vht_txbf_caps(phy);
	mt7915_set_stream_he_caps(phy);
}

static void
mt7915_mac_init_band(struct mt7915_dev *dev, u8 band)
{
	u32 mask, set;

	mt76_rmw_field(dev, MT_TMAC_CTCR0(band),
		       MT_TMAC_CTCR0_INS_DDLMT_REFTIME, 0x3f);
	mt76_set(dev, MT_TMAC_CTCR0(band),
		 MT_TMAC_CTCR0_INS_DDLMT_VHT_SMPDU_EN |
		 MT_TMAC_CTCR0_INS_DDLMT_EN);

	mask = MT_MDP_RCFR0_MCU_RX_MGMT |
	       MT_MDP_RCFR0_MCU_RX_CTL_NON_BAR |
	       MT_MDP_RCFR0_MCU_RX_CTL_BAR;
	set = FIELD_PREP(MT_MDP_RCFR0_MCU_RX_MGMT, MT_MDP_TO_HIF) |
	      FIELD_PREP(MT_MDP_RCFR0_MCU_RX_CTL_NON_BAR, MT_MDP_TO_HIF) |
	      FIELD_PREP(MT_MDP_RCFR0_MCU_RX_CTL_BAR, MT_MDP_TO_HIF);
	mt76_rmw(dev, MT_MDP_BNRCFR0(band), mask, set);

	mask = MT_MDP_RCFR1_MCU_RX_BYPASS |
	       MT_MDP_RCFR1_RX_DROPPED_UCAST |
	       MT_MDP_RCFR1_RX_DROPPED_MCAST;
	set = FIELD_PREP(MT_MDP_RCFR1_MCU_RX_BYPASS, MT_MDP_TO_HIF) |
	      FIELD_PREP(MT_MDP_RCFR1_RX_DROPPED_UCAST, MT_MDP_TO_HIF) |
	      FIELD_PREP(MT_MDP_RCFR1_RX_DROPPED_MCAST, MT_MDP_TO_HIF);
	mt76_rmw(dev, MT_MDP_BNRCFR1(band), mask, set);

	mt76_set(dev, MT_WF_RMAC_MIB_TIME0(band), MT_WF_RMAC_MIB_RXTIME_EN);
	mt76_set(dev, MT_WF_RMAC_MIB_AIRTIME0(band), MT_WF_RMAC_MIB_RXTIME_EN);

	mt76_rmw_field(dev, MT_DMA_DCR0(band), MT_DMA_DCR0_MAX_RX_LEN, 1536);
	/* disable rx rate report by default due to hw issues */
	mt76_clear(dev, MT_DMA_DCR0(band), MT_DMA_DCR0_RXD_G5_EN);
}

static void mt7915_mac_init(struct mt7915_dev *dev)
{
	int i;

	mt76_rmw_field(dev, MT_MDP_DCR1, MT_MDP_DCR1_MAX_RX_LEN, 1536);
	/* enable hardware de-agg */
	mt76_set(dev, MT_MDP_DCR0, MT_MDP_DCR0_DAMSDU_EN);

	for (i = 0; i < MT7915_WTBL_SIZE; i++)
		mt7915_mac_wtbl_update(dev, i,
				       MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
	for (i = 0; i < 2; i++)
		mt7915_mac_init_band(dev, i);
}

static int mt7915_txbf_init(struct mt7915_dev *dev)
{
	int ret;


	if (dev->dbdc_support) {
		ret = mt7915_mcu_set_txbf_module(dev);
		if (ret)
			return ret;
	}

	/* trigger sounding packets */
	ret = mt7915_mcu_set_txbf_sounding(dev);
	if (ret)
		return ret;

	/* enable eBF */
	return mt7915_mcu_set_txbf_type(dev);
}

static int mt7915_register_ext_phy(struct mt7915_dev *dev)
{
	struct mt7915_phy *phy = mt7915_ext_phy(dev);
	struct mt76_phy *mphy;
	int ret;

	if (!dev->dbdc_support)
		return 0;

	if (phy)
		return 0;

	mphy = mt76_alloc_phy(&dev->mt76, sizeof(*phy), &mt7915_ops);
	if (!mphy)
		return -ENOMEM;

	phy = mphy->priv;
	phy->dev = dev;
	phy->mt76 = mphy;
	mphy->chainmask = dev->chainmask & ~dev->mphy.chainmask;
	mphy->antenna_mask = BIT(hweight8(mphy->chainmask)) - 1;

	INIT_LIST_HEAD(&phy->stats_list);
	INIT_DELAYED_WORK(&mphy->mac_work, mt7915_mac_work);

	mt7915_eeprom_parse_band_config(phy);
	mt7915_init_wiphy(mphy->hw);

	memcpy(mphy->macaddr, dev->mt76.eeprom.data + MT_EE_MAC_ADDR2,
	       ETH_ALEN);
	mt76_eeprom_override(mphy);

	ret = mt7915_init_tx_queues(phy, MT7915_TXQ_BAND1,
				    MT7915_TX_RING_SIZE);
	if (ret)
		goto error;

	ret = mt76_register_phy(mphy, true, mt7915_rates,
				ARRAY_SIZE(mt7915_rates));
	if (ret)
		goto error;

	return 0;

error:
	ieee80211_free_hw(mphy->hw);
	return ret;
}

static void mt7915_init_work(struct work_struct *work)
{
	struct mt7915_dev *dev = container_of(work, struct mt7915_dev,
				 init_work);

	mt7915_mcu_set_eeprom(dev);
	mt7915_mac_init(dev);
	mt7915_init_txpower(dev, &dev->mphy.sband_2g.sband);
	mt7915_init_txpower(dev, &dev->mphy.sband_5g.sband);
	mt7915_txbf_init(dev);
}

static void mt7915_wfsys_reset(struct mt7915_dev *dev)
{
	u32 val = MT_TOP_PWR_KEY | MT_TOP_PWR_SW_PWR_ON | MT_TOP_PWR_PWR_ON;

#define MT_MCU_DUMMY_RANDOM	GENMASK(15, 0)
#define MT_MCU_DUMMY_DEFAULT	GENMASK(31, 16)

	mt76_wr(dev, MT_MCU_WFDMA0_DUMMY_CR, MT_MCU_DUMMY_RANDOM);

	/* change to software control */
	val |= MT_TOP_PWR_SW_RST;
	mt76_wr(dev, MT_TOP_PWR_CTRL, val);

	/* reset wfsys */
	val &= ~MT_TOP_PWR_SW_RST;
	mt76_wr(dev, MT_TOP_PWR_CTRL, val);

	/* release wfsys then mcu re-excutes romcode */
	val |= MT_TOP_PWR_SW_RST;
	mt76_wr(dev, MT_TOP_PWR_CTRL, val);

	/* switch to hw control */
	val &= ~MT_TOP_PWR_SW_RST;
	val |= MT_TOP_PWR_HW_CTRL;
	mt76_wr(dev, MT_TOP_PWR_CTRL, val);

	/* check whether mcu resets to default */
	if (!mt76_poll_msec(dev, MT_MCU_WFDMA0_DUMMY_CR, MT_MCU_DUMMY_DEFAULT,
			    MT_MCU_DUMMY_DEFAULT, 1000)) {
		dev_err(dev->mt76.dev, "wifi subsystem reset failure\n");
		return;
	}

	/* wfsys reset won't clear host registers */
	mt76_clear(dev, MT_TOP_MISC, MT_TOP_MISC_FW_STATE);

	msleep(100);
}

static int mt7915_init_hardware(struct mt7915_dev *dev)
{
	int ret, idx;

	mt76_wr(dev, MT_INT_SOURCE_CSR, ~0);

	INIT_WORK(&dev->init_work, mt7915_init_work);
	dev->dbdc_support = !!(mt76_rr(dev, MT_HW_BOUND) & BIT(5));

	/* If MCU was already running, it is likely in a bad state */
	if (mt76_get_field(dev, MT_TOP_MISC, MT_TOP_MISC_FW_STATE) >
	    FW_STATE_FW_DOWNLOAD)
		mt7915_wfsys_reset(dev);

	ret = mt7915_dma_init(dev);
	if (ret)
		return ret;

	set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state);

	/*
	 * force firmware operation mode into normal state,
	 * which should be set before firmware download stage.
	 */
	mt76_wr(dev, MT_SWDEF_MODE, MT_SWDEF_NORMAL_MODE);

	ret = mt7915_mcu_init(dev);
	if (ret) {
		/* Reset and try again */
		mt7915_wfsys_reset(dev);

		ret = mt7915_mcu_init(dev);
		if (ret)
			return ret;
	}

	ret = mt7915_eeprom_init(dev);
	if (ret < 0)
		return ret;


	if (dev->flash_mode) {
		ret = mt7915_mcu_apply_group_cal(dev);
		if (ret)
			return ret;
	}

	/* Beacon and mgmt frames should occupy wcid 0 */
	idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7915_WTBL_STA - 1);
	if (idx)
		return -ENOSPC;

	dev->mt76.global_wcid.idx = idx;
	dev->mt76.global_wcid.hw_key_idx = -1;
	dev->mt76.global_wcid.tx_info |= MT_WCID_TX_INFO_SET;
	rcu_assign_pointer(dev->mt76.wcid[idx], &dev->mt76.global_wcid);

	return 0;
}

void mt7915_set_stream_vht_txbf_caps(struct mt7915_phy *phy)
{
	int nss;
	u32 *cap;

	if (!phy->mt76->cap.has_5ghz)
		return;

	nss = hweight8(phy->mt76->chainmask);
	cap = &phy->mt76->sband_5g.sband.vht_cap.cap;

	*cap |= IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
		IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE |
		(3 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT);

	*cap &= ~(IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK |
		  IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
		  IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE);

	if (nss < 2)
		return;

	*cap |= IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
		IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE |
		FIELD_PREP(IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK,
			   nss - 1);
}

static void
mt7915_set_stream_he_txbf_caps(struct ieee80211_sta_he_cap *he_cap,
			       int vif, int nss)
{
	struct ieee80211_he_cap_elem *elem = &he_cap->he_cap_elem;
	struct ieee80211_he_mcs_nss_supp *mcs = &he_cap->he_mcs_nss_supp;
	u8 c;

#ifdef CONFIG_MAC80211_MESH
	if (vif == NL80211_IFTYPE_MESH_POINT)
		return;
#endif

	elem->phy_cap_info[3] &= ~IEEE80211_HE_PHY_CAP3_SU_BEAMFORMER;
	elem->phy_cap_info[4] &= ~IEEE80211_HE_PHY_CAP4_MU_BEAMFORMER;

	c = IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_MASK |
	    IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_MASK;
	elem->phy_cap_info[5] &= ~c;

	c = IEEE80211_HE_PHY_CAP6_TRIG_SU_BEAMFORMING_FB |
	    IEEE80211_HE_PHY_CAP6_TRIG_MU_BEAMFORMING_PARTIAL_BW_FB;
	elem->phy_cap_info[6] &= ~c;

	elem->phy_cap_info[7] &= ~IEEE80211_HE_PHY_CAP7_MAX_NC_MASK;

	c = IEEE80211_HE_PHY_CAP2_NDP_4x_LTF_AND_3_2US |
	    IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO |
	    IEEE80211_HE_PHY_CAP2_UL_MU_PARTIAL_MU_MIMO;
	elem->phy_cap_info[2] |= c;

	c = IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE |
	    IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_4 |
	    IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_4;
	elem->phy_cap_info[4] |= c;

	/* do not support NG16 due to spec D4.0 changes subcarrier idx */
	c = IEEE80211_HE_PHY_CAP6_CODEBOOK_SIZE_42_SU |
	    IEEE80211_HE_PHY_CAP6_CODEBOOK_SIZE_75_MU;

	if (vif == NL80211_IFTYPE_STATION)
		c |= IEEE80211_HE_PHY_CAP6_PARTIAL_BANDWIDTH_DL_MUMIMO;

	elem->phy_cap_info[6] |= c;

	if (nss < 2)
		return;

	if (vif != NL80211_IFTYPE_AP)
		return;

	elem->phy_cap_info[3] |= IEEE80211_HE_PHY_CAP3_SU_BEAMFORMER;
	elem->phy_cap_info[4] |= IEEE80211_HE_PHY_CAP4_MU_BEAMFORMER;

	/* num_snd_dim */
	c = (nss - 1) | (max_t(int, le16_to_cpu(mcs->tx_mcs_160), 1) << 3);
	elem->phy_cap_info[5] |= c;

	c = IEEE80211_HE_PHY_CAP6_TRIG_SU_BEAMFORMING_FB |
	    IEEE80211_HE_PHY_CAP6_TRIG_MU_BEAMFORMING_PARTIAL_BW_FB;
	elem->phy_cap_info[6] |= c;

	/* the maximum cap is 4 x 3, (Nr, Nc) = (3, 2) */
	elem->phy_cap_info[7] |= min_t(int, nss - 1, 2) << 3;
}

static void
mt7915_gen_ppe_thresh(u8 *he_ppet, int nss)
{
	u8 i, ppet_bits, ppet_size, ru_bit_mask = 0x7; /* HE80 */
	u8 ppet16_ppet8_ru3_ru0[] = {0x1c, 0xc7, 0x71};

	he_ppet[0] = FIELD_PREP(IEEE80211_PPE_THRES_NSS_MASK, nss - 1) |
		     FIELD_PREP(IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK,
				ru_bit_mask);

	ppet_bits = IEEE80211_PPE_THRES_INFO_PPET_SIZE *
		    nss * hweight8(ru_bit_mask) * 2;
	ppet_size = DIV_ROUND_UP(ppet_bits, 8);

	for (i = 0; i < ppet_size - 1; i++)
		he_ppet[i + 1] = ppet16_ppet8_ru3_ru0[i % 3];

	he_ppet[i + 1] = ppet16_ppet8_ru3_ru0[i % 3] &
			 (0xff >> (8 - (ppet_bits - 1) % 8));
}

static int
mt7915_init_he_caps(struct mt7915_phy *phy, enum nl80211_band band,
		    struct ieee80211_sband_iftype_data *data)
{
	int i, idx = 0, nss = hweight8(phy->mt76->chainmask);
	u16 mcs_map = 0;

	for (i = 0; i < 8; i++) {
		if (i < nss)
			mcs_map |= (IEEE80211_HE_MCS_SUPPORT_0_11 << (i * 2));
		else
			mcs_map |= (IEEE80211_HE_MCS_NOT_SUPPORTED << (i * 2));
	}

	for (i = 0; i < NUM_NL80211_IFTYPES; i++) {
		struct ieee80211_sta_he_cap *he_cap = &data[idx].he_cap;
		struct ieee80211_he_cap_elem *he_cap_elem =
				&he_cap->he_cap_elem;
		struct ieee80211_he_mcs_nss_supp *he_mcs =
				&he_cap->he_mcs_nss_supp;

		switch (i) {
		case NL80211_IFTYPE_STATION:
		case NL80211_IFTYPE_AP:
#ifdef CONFIG_MAC80211_MESH
		case NL80211_IFTYPE_MESH_POINT:
#endif
			break;
		default:
			continue;
		}

		data[idx].types_mask = BIT(i);
		he_cap->has_he = true;

		he_cap_elem->mac_cap_info[0] =
			IEEE80211_HE_MAC_CAP0_HTC_HE;
		he_cap_elem->mac_cap_info[3] =
			IEEE80211_HE_MAC_CAP3_OMI_CONTROL |
			IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3;
		he_cap_elem->mac_cap_info[4] =
			IEEE80211_HE_MAC_CAP4_AMSDU_IN_AMPDU;

		if (band == NL80211_BAND_2GHZ)
			he_cap_elem->phy_cap_info[0] =
				IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G;
		else if (band == NL80211_BAND_5GHZ)
			he_cap_elem->phy_cap_info[0] =
				IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G |
				IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G |
				IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G;

		he_cap_elem->phy_cap_info[1] =
			IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD;
		he_cap_elem->phy_cap_info[2] =
			IEEE80211_HE_PHY_CAP2_STBC_TX_UNDER_80MHZ |
			IEEE80211_HE_PHY_CAP2_STBC_RX_UNDER_80MHZ;

		switch (i) {
		case NL80211_IFTYPE_AP:
			he_cap_elem->mac_cap_info[0] |=
				IEEE80211_HE_MAC_CAP0_TWT_RES;
			he_cap_elem->mac_cap_info[2] |=
				IEEE80211_HE_MAC_CAP2_BSR;
			he_cap_elem->mac_cap_info[4] |=
				IEEE80211_HE_MAC_CAP4_BQR;
			he_cap_elem->mac_cap_info[5] |=
				IEEE80211_HE_MAC_CAP5_OM_CTRL_UL_MU_DATA_DIS_RX;
			he_cap_elem->phy_cap_info[3] |=
				IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK |
				IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK;
			he_cap_elem->phy_cap_info[6] |=
				IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT;
			break;
		case NL80211_IFTYPE_STATION:
			he_cap_elem->mac_cap_info[0] |=
				IEEE80211_HE_MAC_CAP0_TWT_REQ;
			he_cap_elem->mac_cap_info[1] |=
				IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US;

			if (band == NL80211_BAND_2GHZ)
				he_cap_elem->phy_cap_info[0] |=
					IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_RU_MAPPING_IN_2G;
			else if (band == NL80211_BAND_5GHZ)
				he_cap_elem->phy_cap_info[0] |=
					IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_RU_MAPPING_IN_5G;

			he_cap_elem->phy_cap_info[1] |=
				IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A |
				IEEE80211_HE_PHY_CAP1_HE_LTF_AND_GI_FOR_HE_PPDUS_0_8US;
			he_cap_elem->phy_cap_info[3] |=
				IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK |
				IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK;
			he_cap_elem->phy_cap_info[6] |=
				IEEE80211_HE_PHY_CAP6_TRIG_CQI_FB |
				IEEE80211_HE_PHY_CAP6_PARTIAL_BW_EXT_RANGE |
				IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT;
			he_cap_elem->phy_cap_info[7] |=
				IEEE80211_HE_PHY_CAP7_POWER_BOOST_FACTOR_SUPP |
				IEEE80211_HE_PHY_CAP7_HE_SU_MU_PPDU_4XLTF_AND_08_US_GI;
			he_cap_elem->phy_cap_info[8] |=
				IEEE80211_HE_PHY_CAP8_20MHZ_IN_40MHZ_HE_PPDU_IN_2G |
				IEEE80211_HE_PHY_CAP8_20MHZ_IN_160MHZ_HE_PPDU |
				IEEE80211_HE_PHY_CAP8_80MHZ_IN_160MHZ_HE_PPDU |
				IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_484;
			he_cap_elem->phy_cap_info[9] |=
				IEEE80211_HE_PHY_CAP9_LONGER_THAN_16_SIGB_OFDM_SYM |
				IEEE80211_HE_PHY_CAP9_NON_TRIGGERED_CQI_FEEDBACK |
				IEEE80211_HE_PHY_CAP9_TX_1024_QAM_LESS_THAN_242_TONE_RU |
				IEEE80211_HE_PHY_CAP9_RX_1024_QAM_LESS_THAN_242_TONE_RU |
				IEEE80211_HE_PHY_CAP9_RX_FULL_BW_SU_USING_MU_WITH_COMP_SIGB |
				IEEE80211_HE_PHY_CAP9_RX_FULL_BW_SU_USING_MU_WITH_NON_COMP_SIGB;
			break;
		}

		he_mcs->rx_mcs_80 = cpu_to_le16(mcs_map);
		he_mcs->tx_mcs_80 = cpu_to_le16(mcs_map);
		he_mcs->rx_mcs_160 = cpu_to_le16(mcs_map);
		he_mcs->tx_mcs_160 = cpu_to_le16(mcs_map);
		he_mcs->rx_mcs_80p80 = cpu_to_le16(mcs_map);
		he_mcs->tx_mcs_80p80 = cpu_to_le16(mcs_map);

		mt7915_set_stream_he_txbf_caps(he_cap, i, nss);

		memset(he_cap->ppe_thres, 0, sizeof(he_cap->ppe_thres));
		if (he_cap_elem->phy_cap_info[6] &
		    IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) {
			mt7915_gen_ppe_thresh(he_cap->ppe_thres, nss);
		} else {
			he_cap_elem->phy_cap_info[9] |=
				IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_16US;
		}
		idx++;
	}

	return idx;
}

void mt7915_set_stream_he_caps(struct mt7915_phy *phy)
{
	struct ieee80211_sband_iftype_data *data;
	struct ieee80211_supported_band *band;
	int n;

	if (phy->mt76->cap.has_2ghz) {
		data = phy->iftype[NL80211_BAND_2GHZ];
		n = mt7915_init_he_caps(phy, NL80211_BAND_2GHZ, data);

		band = &phy->mt76->sband_2g.sband;
		band->iftype_data = data;
		band->n_iftype_data = n;
	}

	if (phy->mt76->cap.has_5ghz) {
		data = phy->iftype[NL80211_BAND_5GHZ];
		n = mt7915_init_he_caps(phy, NL80211_BAND_5GHZ, data);

		band = &phy->mt76->sband_5g.sband;
		band->iftype_data = data;
		band->n_iftype_data = n;
	}
}

static void mt7915_unregister_ext_phy(struct mt7915_dev *dev)
{
	struct mt7915_phy *phy = mt7915_ext_phy(dev);
	struct mt76_phy *mphy = dev->mt76.phy2;

	if (!phy)
		return;

	mt76_unregister_phy(mphy);
	ieee80211_free_hw(mphy->hw);
}

int mt7915_register_device(struct mt7915_dev *dev)
{
	struct ieee80211_hw *hw = mt76_hw(dev);
	int ret;

	dev->phy.dev = dev;
	dev->phy.mt76 = &dev->mt76.phy;
	dev->mt76.phy.priv = &dev->phy;
	INIT_LIST_HEAD(&dev->phy.stats_list);
	INIT_WORK(&dev->rc_work, mt7915_mac_sta_rc_work);
	INIT_DELAYED_WORK(&dev->mphy.mac_work, mt7915_mac_work);
	INIT_LIST_HEAD(&dev->sta_rc_list);
	INIT_LIST_HEAD(&dev->sta_poll_list);
	spin_lock_init(&dev->sta_poll_lock);

	init_waitqueue_head(&dev->reset_wait);
	INIT_WORK(&dev->reset_work, mt7915_mac_reset_work);

	ret = mt7915_init_hardware(dev);
	if (ret)
		return ret;

	mt7915_init_wiphy(hw);

	if (!dev->dbdc_support)
		dev->mphy.sband_5g.sband.vht_cap.cap |=
			IEEE80211_VHT_CAP_SHORT_GI_160 |
			IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ;

	dev->mphy.hw->wiphy->available_antennas_rx = dev->mphy.chainmask;
	dev->mphy.hw->wiphy->available_antennas_tx = dev->mphy.chainmask;
	dev->phy.dfs_state = -1;

#ifdef CONFIG_NL80211_TESTMODE
	dev->mt76.test_ops = &mt7915_testmode_ops;
#endif

	ret = mt76_register_device(&dev->mt76, true, mt7915_rates,
				   ARRAY_SIZE(mt7915_rates));
	if (ret)
		return ret;

	ieee80211_queue_work(mt76_hw(dev), &dev->init_work);

	ret = mt7915_register_ext_phy(dev);
	if (ret)
		return ret;

	return mt7915_init_debugfs(dev);
}

void mt7915_unregister_device(struct mt7915_dev *dev)
{
	mt7915_unregister_ext_phy(dev);
	mt76_unregister_device(&dev->mt76);
	mt7915_mcu_exit(dev);
	mt7915_tx_token_put(dev);
	mt7915_dma_cleanup(dev);

	mt76_free_device(&dev->mt76);
}