summaryrefslogtreecommitdiffstats
path: root/drivers/net/wireless/mediatek/mt76/mt76.h
blob: 5cd508a686095fcd80bbc71a34fc30fcee075d86 (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
/*
 * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#ifndef __MT76_H
#define __MT76_H

#include <linux/kernel.h>
#include <linux/io.h>
#include <linux/spinlock.h>
#include <linux/skbuff.h>
#include <linux/leds.h>
#include <linux/usb.h>
#include <net/mac80211.h>
#include "util.h"

#define MT_TX_RING_SIZE     256
#define MT_MCU_RING_SIZE    32
#define MT_RX_BUF_SIZE      2048

struct mt76_dev;
struct mt76_wcid;

struct mt76_reg_pair {
	u32 reg;
	u32 value;
};

enum mt76_bus_type {
	MT76_BUS_MMIO,
	MT76_BUS_USB,
};

struct mt76_bus_ops {
	u32 (*rr)(struct mt76_dev *dev, u32 offset);
	void (*wr)(struct mt76_dev *dev, u32 offset, u32 val);
	u32 (*rmw)(struct mt76_dev *dev, u32 offset, u32 mask, u32 val);
	void (*copy)(struct mt76_dev *dev, u32 offset, const void *data,
		     int len);
	int (*wr_rp)(struct mt76_dev *dev, u32 base,
		     const struct mt76_reg_pair *rp, int len);
	int (*rd_rp)(struct mt76_dev *dev, u32 base,
		     struct mt76_reg_pair *rp, int len);
	enum mt76_bus_type type;
};

#define mt76_is_usb(dev) ((dev)->mt76.bus->type == MT76_BUS_USB)
#define mt76_is_mmio(dev) ((dev)->mt76.bus->type == MT76_BUS_MMIO)

enum mt76_txq_id {
	MT_TXQ_VO = IEEE80211_AC_VO,
	MT_TXQ_VI = IEEE80211_AC_VI,
	MT_TXQ_BE = IEEE80211_AC_BE,
	MT_TXQ_BK = IEEE80211_AC_BK,
	MT_TXQ_PSD,
	MT_TXQ_MCU,
	MT_TXQ_BEACON,
	MT_TXQ_CAB,
	__MT_TXQ_MAX
};

enum mt76_rxq_id {
	MT_RXQ_MAIN,
	MT_RXQ_MCU,
	__MT_RXQ_MAX
};

struct mt76_queue_buf {
	dma_addr_t addr;
	int len;
};

struct mt76u_buf {
	struct mt76_dev *dev;
	struct urb *urb;
	size_t len;
	bool done;
};

struct mt76_queue_entry {
	union {
		void *buf;
		struct sk_buff *skb;
	};
	union {
		struct mt76_txwi_cache *txwi;
		struct mt76u_buf ubuf;
	};
	bool schedule;
};

struct mt76_queue_regs {
	u32 desc_base;
	u32 ring_size;
	u32 cpu_idx;
	u32 dma_idx;
} __packed __aligned(4);

struct mt76_queue {
	struct mt76_queue_regs __iomem *regs;

	spinlock_t lock;
	struct mt76_queue_entry *entry;
	struct mt76_desc *desc;

	struct list_head swq;
	int swq_queued;

	u16 first;
	u16 head;
	u16 tail;
	int ndesc;
	int queued;
	int buf_size;

	u8 buf_offset;
	u8 hw_idx;

	dma_addr_t desc_dma;
	struct sk_buff *rx_head;
	struct page_frag_cache rx_page;
	spinlock_t rx_page_lock;
};

struct mt76_mcu_ops {
	int (*mcu_send_msg)(struct mt76_dev *dev, int cmd, const void *data,
			    int len, bool wait_resp);
	int (*mcu_wr_rp)(struct mt76_dev *dev, u32 base,
			 const struct mt76_reg_pair *rp, int len);
	int (*mcu_rd_rp)(struct mt76_dev *dev, u32 base,
			 struct mt76_reg_pair *rp, int len);
};

struct mt76_queue_ops {
	int (*init)(struct mt76_dev *dev);

	int (*alloc)(struct mt76_dev *dev, struct mt76_queue *q);

	int (*add_buf)(struct mt76_dev *dev, struct mt76_queue *q,
		       struct mt76_queue_buf *buf, int nbufs, u32 info,
		       struct sk_buff *skb, void *txwi);

	int (*tx_queue_skb)(struct mt76_dev *dev, struct mt76_queue *q,
			    struct sk_buff *skb, struct mt76_wcid *wcid,
			    struct ieee80211_sta *sta);

	void *(*dequeue)(struct mt76_dev *dev, struct mt76_queue *q, bool flush,
			 int *len, u32 *info, bool *more);

	void (*rx_reset)(struct mt76_dev *dev, enum mt76_rxq_id qid);

	void (*tx_cleanup)(struct mt76_dev *dev, enum mt76_txq_id qid,
			   bool flush);

	void (*kick)(struct mt76_dev *dev, struct mt76_queue *q);
};

enum mt76_wcid_flags {
	MT_WCID_FLAG_CHECK_PS,
	MT_WCID_FLAG_PS,
};

#define MT76_N_WCIDS 128

struct mt76_wcid {
	struct mt76_rx_tid __rcu *aggr[IEEE80211_NUM_TIDS];

	struct work_struct aggr_work;

	unsigned long flags;

	u8 idx;
	u8 hw_key_idx;

	u8 sta:1;

	u8 rx_check_pn;
	u8 rx_key_pn[IEEE80211_NUM_TIDS][6];

	__le16 tx_rate;
	bool tx_rate_set;
	u8 tx_rate_nss;
	s8 max_txpwr_adj;
	bool sw_iv;

	u8 packet_id;
};

struct mt76_txq {
	struct list_head list;
	struct mt76_queue *hwq;
	struct mt76_wcid *wcid;

	struct sk_buff_head retry_q;

	u16 agg_ssn;
	bool send_bar;
	bool aggr;
};

struct mt76_txwi_cache {
	u32 txwi[8];
	dma_addr_t dma_addr;
	struct list_head list;
};


struct mt76_rx_tid {
	struct rcu_head rcu_head;

	struct mt76_dev *dev;

	spinlock_t lock;
	struct delayed_work reorder_work;

	u16 head;
	u8 size;
	u8 nframes;

	u8 started:1, stopped:1, timer_pending:1;

	struct sk_buff *reorder_buf[];
};

#define MT_TX_CB_DMA_DONE		BIT(0)
#define MT_TX_CB_TXS_DONE		BIT(1)
#define MT_TX_CB_TXS_FAILED		BIT(2)

#define MT_PACKET_ID_MASK		GENMASK(7, 0)
#define MT_PACKET_ID_NO_ACK		MT_PACKET_ID_MASK

#define MT_TX_STATUS_SKB_TIMEOUT	HZ

struct mt76_tx_cb {
	unsigned long jiffies;
	u8 wcid;
	u8 pktid;
	u8 flags;
};

enum {
	MT76_STATE_INITIALIZED,
	MT76_STATE_RUNNING,
	MT76_STATE_MCU_RUNNING,
	MT76_SCANNING,
	MT76_RESET,
	MT76_OFFCHANNEL,
	MT76_REMOVED,
	MT76_READING_STATS,
};

struct mt76_hw_cap {
	bool has_2ghz;
	bool has_5ghz;
};

struct mt76_driver_ops {
	u16 txwi_size;

	void (*update_survey)(struct mt76_dev *dev);

	int (*tx_prepare_skb)(struct mt76_dev *dev, void *txwi_ptr,
			      struct sk_buff *skb, struct mt76_queue *q,
			      struct mt76_wcid *wcid,
			      struct ieee80211_sta *sta, u32 *tx_info);

	void (*tx_complete_skb)(struct mt76_dev *dev, struct mt76_queue *q,
				struct mt76_queue_entry *e, bool flush);

	bool (*tx_status_data)(struct mt76_dev *dev, u8 *update);

	void (*rx_skb)(struct mt76_dev *dev, enum mt76_rxq_id q,
		       struct sk_buff *skb);

	void (*rx_poll_complete)(struct mt76_dev *dev, enum mt76_rxq_id q);

	void (*sta_ps)(struct mt76_dev *dev, struct ieee80211_sta *sta,
		       bool ps);

	int (*sta_add)(struct mt76_dev *dev, struct ieee80211_vif *vif,
		       struct ieee80211_sta *sta);

	void (*sta_remove)(struct mt76_dev *dev, struct ieee80211_vif *vif,
			   struct ieee80211_sta *sta);
};

struct mt76_channel_state {
	u64 cc_active;
	u64 cc_busy;
};

struct mt76_sband {
	struct ieee80211_supported_band sband;
	struct mt76_channel_state *chan;
};

struct mt76_rate_power {
	union {
		struct {
			s8 cck[4];
			s8 ofdm[8];
			s8 stbc[10];
			s8 ht[16];
			s8 vht[10];
		};
		s8 all[48];
	};
};

/* addr req mask */
#define MT_VEND_TYPE_EEPROM	BIT(31)
#define MT_VEND_TYPE_CFG	BIT(30)
#define MT_VEND_TYPE_MASK	(MT_VEND_TYPE_EEPROM | MT_VEND_TYPE_CFG)

#define MT_VEND_ADDR(type, n)	(MT_VEND_TYPE_##type | (n))
enum mt_vendor_req {
	MT_VEND_DEV_MODE =	0x1,
	MT_VEND_WRITE =		0x2,
	MT_VEND_MULTI_WRITE =	0x6,
	MT_VEND_MULTI_READ =	0x7,
	MT_VEND_READ_EEPROM =	0x9,
	MT_VEND_WRITE_FCE =	0x42,
	MT_VEND_WRITE_CFG =	0x46,
	MT_VEND_READ_CFG =	0x47,
};

enum mt76u_in_ep {
	MT_EP_IN_PKT_RX,
	MT_EP_IN_CMD_RESP,
	__MT_EP_IN_MAX,
};

enum mt76u_out_ep {
	MT_EP_OUT_INBAND_CMD,
	MT_EP_OUT_AC_BK,
	MT_EP_OUT_AC_BE,
	MT_EP_OUT_AC_VI,
	MT_EP_OUT_AC_VO,
	MT_EP_OUT_HCCA,
	__MT_EP_OUT_MAX,
};

#define MT_SG_MAX_SIZE		8
#define MT_NUM_TX_ENTRIES	256
#define MT_NUM_RX_ENTRIES	128
#define MCU_RESP_URB_SIZE	1024
struct mt76_usb {
	struct mutex usb_ctrl_mtx;
	u8 data[32];

	struct tasklet_struct rx_tasklet;
	struct tasklet_struct tx_tasklet;
	struct delayed_work stat_work;

	u8 out_ep[__MT_EP_OUT_MAX];
	u16 out_max_packet;
	u8 in_ep[__MT_EP_IN_MAX];
	u16 in_max_packet;

	struct mt76u_mcu {
		struct mutex mutex;
		struct completion cmpl;
		struct mt76u_buf res;
		u32 msg_seq;

		/* multiple reads */
		struct mt76_reg_pair *rp;
		int rp_len;
		u32 base;
		bool burst;
	} mcu;
};

struct mt76_mmio {
	struct mt76e_mcu {
		struct mutex mutex;

		wait_queue_head_t wait;
		struct sk_buff_head res_q;

		u32 msg_seq;
	} mcu;
	void __iomem *regs;
	spinlock_t irq_lock;
	u32 irqmask;
};

struct mt76_dev {
	struct ieee80211_hw *hw;
	struct cfg80211_chan_def chandef;
	struct ieee80211_channel *main_chan;

	spinlock_t lock;
	spinlock_t cc_lock;

	struct mutex mutex;

	const struct mt76_bus_ops *bus;
	const struct mt76_driver_ops *drv;
	const struct mt76_mcu_ops *mcu_ops;
	struct device *dev;

	struct net_device napi_dev;
	spinlock_t rx_lock;
	struct napi_struct napi[__MT_RXQ_MAX];
	struct sk_buff_head rx_skb[__MT_RXQ_MAX];

	struct list_head txwi_cache;
	struct mt76_queue q_tx[__MT_TXQ_MAX];
	struct mt76_queue q_rx[__MT_RXQ_MAX];
	const struct mt76_queue_ops *queue_ops;

	wait_queue_head_t tx_wait;
	struct sk_buff_head status_list;

	unsigned long wcid_mask[MT76_N_WCIDS / BITS_PER_LONG];

	struct mt76_wcid global_wcid;
	struct mt76_wcid __rcu *wcid[MT76_N_WCIDS];

	u8 macaddr[ETH_ALEN];
	u32 rev;
	unsigned long state;

	u8 antenna_mask;
	u16 chainmask;

	struct mt76_sband sband_2g;
	struct mt76_sband sband_5g;
	struct debugfs_blob_wrapper eeprom;
	struct debugfs_blob_wrapper otp;
	struct mt76_hw_cap cap;

	struct mt76_rate_power rate_power;
	int txpower_conf;
	int txpower_cur;

	u32 debugfs_reg;

	struct led_classdev led_cdev;
	char led_name[32];
	bool led_al;
	u8 led_pin;

	u32 rxfilter;

	union {
		struct mt76_mmio mmio;
		struct mt76_usb usb;
	};
};

enum mt76_phy_type {
	MT_PHY_TYPE_CCK,
	MT_PHY_TYPE_OFDM,
	MT_PHY_TYPE_HT,
	MT_PHY_TYPE_HT_GF,
	MT_PHY_TYPE_VHT,
};

struct mt76_rx_status {
	struct mt76_wcid *wcid;

	unsigned long reorder_time;

	u8 iv[6];

	u8 aggr:1;
	u8 tid;
	u16 seqno;

	u16 freq;
	u32 flag;
	u8 enc_flags;
	u8 encoding:2, bw:3;
	u8 rate_idx;
	u8 nss;
	u8 band;
	u8 signal;
	u8 chains;
	s8 chain_signal[IEEE80211_MAX_CHAINS];
};

#define __mt76_rr(dev, ...)	(dev)->bus->rr((dev), __VA_ARGS__)
#define __mt76_wr(dev, ...)	(dev)->bus->wr((dev), __VA_ARGS__)
#define __mt76_rmw(dev, ...)	(dev)->bus->rmw((dev), __VA_ARGS__)
#define __mt76_wr_copy(dev, ...)	(dev)->bus->copy((dev), __VA_ARGS__)

#define __mt76_set(dev, offset, val)	__mt76_rmw(dev, offset, 0, val)
#define __mt76_clear(dev, offset, val)	__mt76_rmw(dev, offset, val, 0)

#define mt76_rr(dev, ...)	(dev)->mt76.bus->rr(&((dev)->mt76), __VA_ARGS__)
#define mt76_wr(dev, ...)	(dev)->mt76.bus->wr(&((dev)->mt76), __VA_ARGS__)
#define mt76_rmw(dev, ...)	(dev)->mt76.bus->rmw(&((dev)->mt76), __VA_ARGS__)
#define mt76_wr_copy(dev, ...)	(dev)->mt76.bus->copy(&((dev)->mt76), __VA_ARGS__)
#define mt76_wr_rp(dev, ...)	(dev)->mt76.bus->wr_rp(&((dev)->mt76), __VA_ARGS__)
#define mt76_rd_rp(dev, ...)	(dev)->mt76.bus->rd_rp(&((dev)->mt76), __VA_ARGS__)

#define mt76_mcu_send_msg(dev, ...)	(dev)->mt76.mcu_ops->mcu_send_msg(&((dev)->mt76), __VA_ARGS__)

#define mt76_set(dev, offset, val)	mt76_rmw(dev, offset, 0, val)
#define mt76_clear(dev, offset, val)	mt76_rmw(dev, offset, val, 0)

#define mt76_get_field(_dev, _reg, _field)		\
	FIELD_GET(_field, mt76_rr(dev, _reg))

#define mt76_rmw_field(_dev, _reg, _field, _val)	\
	mt76_rmw(_dev, _reg, _field, FIELD_PREP(_field, _val))

#define __mt76_rmw_field(_dev, _reg, _field, _val)	\
	__mt76_rmw(_dev, _reg, _field, FIELD_PREP(_field, _val))

#define mt76_hw(dev) (dev)->mt76.hw

bool __mt76_poll(struct mt76_dev *dev, u32 offset, u32 mask, u32 val,
		 int timeout);

#define mt76_poll(dev, ...) __mt76_poll(&((dev)->mt76), __VA_ARGS__)

bool __mt76_poll_msec(struct mt76_dev *dev, u32 offset, u32 mask, u32 val,
		      int timeout);

#define mt76_poll_msec(dev, ...) __mt76_poll_msec(&((dev)->mt76), __VA_ARGS__)

void mt76_mmio_init(struct mt76_dev *dev, void __iomem *regs);

static inline u16 mt76_chip(struct mt76_dev *dev)
{
	return dev->rev >> 16;
}

static inline u16 mt76_rev(struct mt76_dev *dev)
{
	return dev->rev & 0xffff;
}

#define mt76xx_chip(dev) mt76_chip(&((dev)->mt76))
#define mt76xx_rev(dev) mt76_rev(&((dev)->mt76))

#define mt76_init_queues(dev)		(dev)->mt76.queue_ops->init(&((dev)->mt76))
#define mt76_queue_alloc(dev, ...)	(dev)->mt76.queue_ops->alloc(&((dev)->mt76), __VA_ARGS__)
#define mt76_queue_add_buf(dev, ...)	(dev)->mt76.queue_ops->add_buf(&((dev)->mt76), __VA_ARGS__)
#define mt76_queue_rx_reset(dev, ...)	(dev)->mt76.queue_ops->rx_reset(&((dev)->mt76), __VA_ARGS__)
#define mt76_queue_tx_cleanup(dev, ...)	(dev)->mt76.queue_ops->tx_cleanup(&((dev)->mt76), __VA_ARGS__)
#define mt76_queue_kick(dev, ...)	(dev)->mt76.queue_ops->kick(&((dev)->mt76), __VA_ARGS__)

static inline struct mt76_channel_state *
mt76_channel_state(struct mt76_dev *dev, struct ieee80211_channel *c)
{
	struct mt76_sband *msband;
	int idx;

	if (c->band == NL80211_BAND_2GHZ)
		msband = &dev->sband_2g;
	else
		msband = &dev->sband_5g;

	idx = c - &msband->sband.channels[0];
	return &msband->chan[idx];
}

struct mt76_dev *mt76_alloc_device(unsigned int size,
				   const struct ieee80211_ops *ops);
int mt76_register_device(struct mt76_dev *dev, bool vht,
			 struct ieee80211_rate *rates, int n_rates);
void mt76_unregister_device(struct mt76_dev *dev);

struct dentry *mt76_register_debugfs(struct mt76_dev *dev);
void mt76_seq_puts_array(struct seq_file *file, const char *str,
			 s8 *val, int len);

int mt76_eeprom_init(struct mt76_dev *dev, int len);
void mt76_eeprom_override(struct mt76_dev *dev);

/* increment with wrap-around */
static inline int mt76_incr(int val, int size)
{
	return (val + 1) & (size - 1);
}

/* decrement with wrap-around */
static inline int mt76_decr(int val, int size)
{
	return (val - 1) & (size - 1);
}

u8 mt76_ac_to_hwq(u8 ac);

static inline struct ieee80211_txq *
mtxq_to_txq(struct mt76_txq *mtxq)
{
	void *ptr = mtxq;

	return container_of(ptr, struct ieee80211_txq, drv_priv);
}

static inline struct ieee80211_sta *
wcid_to_sta(struct mt76_wcid *wcid)
{
	void *ptr = wcid;

	if (!wcid || !wcid->sta)
		return NULL;

	return container_of(ptr, struct ieee80211_sta, drv_priv);
}

static inline struct mt76_tx_cb *mt76_tx_skb_cb(struct sk_buff *skb)
{
	BUILD_BUG_ON(sizeof(struct mt76_tx_cb) >
		     sizeof(IEEE80211_SKB_CB(skb)->status.status_driver_data));
	return ((void *) IEEE80211_SKB_CB(skb)->status.status_driver_data);
}

int mt76_dma_tx_queue_skb(struct mt76_dev *dev, struct mt76_queue *q,
			  struct sk_buff *skb, struct mt76_wcid *wcid,
			  struct ieee80211_sta *sta);

void mt76_rx(struct mt76_dev *dev, enum mt76_rxq_id q, struct sk_buff *skb);
void mt76_tx(struct mt76_dev *dev, struct ieee80211_sta *sta,
	     struct mt76_wcid *wcid, struct sk_buff *skb);
void mt76_txq_init(struct mt76_dev *dev, struct ieee80211_txq *txq);
void mt76_txq_remove(struct mt76_dev *dev, struct ieee80211_txq *txq);
void mt76_wake_tx_queue(struct ieee80211_hw *hw, struct ieee80211_txq *txq);
void mt76_stop_tx_queues(struct mt76_dev *dev, struct ieee80211_sta *sta,
			 bool send_bar);
void mt76_txq_schedule(struct mt76_dev *dev, struct mt76_queue *hwq);
void mt76_txq_schedule_all(struct mt76_dev *dev);
void mt76_release_buffered_frames(struct ieee80211_hw *hw,
				  struct ieee80211_sta *sta,
				  u16 tids, int nframes,
				  enum ieee80211_frame_release_type reason,
				  bool more_data);
void mt76_set_channel(struct mt76_dev *dev);
int mt76_get_survey(struct ieee80211_hw *hw, int idx,
		    struct survey_info *survey);
void mt76_set_stream_caps(struct mt76_dev *dev, bool vht);

int mt76_rx_aggr_start(struct mt76_dev *dev, struct mt76_wcid *wcid, u8 tid,
		       u16 ssn, u8 size);
void mt76_rx_aggr_stop(struct mt76_dev *dev, struct mt76_wcid *wcid, u8 tid);

void mt76_wcid_key_setup(struct mt76_dev *dev, struct mt76_wcid *wcid,
			 struct ieee80211_key_conf *key);

void mt76_tx_status_lock(struct mt76_dev *dev, struct sk_buff_head *list)
			 __acquires(&dev->status_list.lock);
void mt76_tx_status_unlock(struct mt76_dev *dev, struct sk_buff_head *list)
			   __releases(&dev->status_list.lock);

int mt76_tx_status_skb_add(struct mt76_dev *dev, struct mt76_wcid *wcid,
			   struct sk_buff *skb);
struct sk_buff *mt76_tx_status_skb_get(struct mt76_dev *dev,
				       struct mt76_wcid *wcid, int pktid,
				       struct sk_buff_head *list);
void mt76_tx_status_skb_done(struct mt76_dev *dev, struct sk_buff *skb,
			     struct sk_buff_head *list);
void mt76_tx_complete_skb(struct mt76_dev *dev, struct sk_buff *skb);
void mt76_tx_status_check(struct mt76_dev *dev, struct mt76_wcid *wcid,
			  bool flush);
int mt76_sta_state(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
		   struct ieee80211_sta *sta,
		   enum ieee80211_sta_state old_state,
		   enum ieee80211_sta_state new_state);

struct ieee80211_sta *mt76_rx_convert(struct sk_buff *skb);

/* internal */
void mt76_tx_free(struct mt76_dev *dev);
struct mt76_txwi_cache *mt76_get_txwi(struct mt76_dev *dev);
void mt76_put_txwi(struct mt76_dev *dev, struct mt76_txwi_cache *t);
void mt76_rx_complete(struct mt76_dev *dev, struct sk_buff_head *frames,
		      struct napi_struct *napi);
void mt76_rx_poll_complete(struct mt76_dev *dev, enum mt76_rxq_id q,
			   struct napi_struct *napi);
void mt76_rx_aggr_reorder(struct sk_buff *skb, struct sk_buff_head *frames);

/* usb */
static inline bool mt76u_urb_error(struct urb *urb)
{
	return urb->status &&
	       urb->status != -ECONNRESET &&
	       urb->status != -ESHUTDOWN &&
	       urb->status != -ENOENT;
}

/* Map hardware queues to usb endpoints */
static inline u8 q2ep(u8 qid)
{
	/* TODO: take management packets to queue 5 */
	return qid + 1;
}

static inline bool mt76u_check_sg(struct mt76_dev *dev)
{
	struct usb_interface *intf = to_usb_interface(dev->dev);
	struct usb_device *udev = interface_to_usbdev(intf);

	return (udev->bus->sg_tablesize > 0 &&
		(udev->bus->no_sg_constraint ||
		 udev->speed == USB_SPEED_WIRELESS));
}

int mt76u_vendor_request(struct mt76_dev *dev, u8 req,
			 u8 req_type, u16 val, u16 offset,
			 void *buf, size_t len);
void mt76u_single_wr(struct mt76_dev *dev, const u8 req,
		     const u16 offset, const u32 val);
int mt76u_init(struct mt76_dev *dev, struct usb_interface *intf);
void mt76u_deinit(struct mt76_dev *dev);
int mt76u_buf_alloc(struct mt76_dev *dev, struct mt76u_buf *buf,
		    int nsgs, int len, int sglen, gfp_t gfp);
void mt76u_buf_free(struct mt76u_buf *buf);
int mt76u_submit_buf(struct mt76_dev *dev, int dir, int index,
		     struct mt76u_buf *buf, gfp_t gfp,
		     usb_complete_t complete_fn, void *context);
int mt76u_submit_rx_buffers(struct mt76_dev *dev);
int mt76u_alloc_queues(struct mt76_dev *dev);
void mt76u_stop_queues(struct mt76_dev *dev);
void mt76u_stop_stat_wk(struct mt76_dev *dev);
void mt76u_queues_deinit(struct mt76_dev *dev);

void mt76u_mcu_complete_urb(struct urb *urb);
int mt76u_mcu_init_rx(struct mt76_dev *dev);
void mt76u_mcu_deinit(struct mt76_dev *dev);

#endif