Stuck at home?

Check our new online training!

Stuck at home?

All Bootlin training courses
are now available
through on-line seminars

Bootlin logo

Elixir Cross Referencer

  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
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
/*
 * Copyright (c) 2012-2015 Qualcomm Atheros, Inc.
 *
 * 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 __WIL6210_H__
#define __WIL6210_H__

#include <linux/netdevice.h>
#include <linux/wireless.h>
#include <net/cfg80211.h>
#include <linux/timex.h>
#include "wil_platform.h"

extern bool no_fw_recovery;
extern unsigned int mtu_max;
extern unsigned short rx_ring_overflow_thrsh;
extern int agg_wsize;
extern u32 vring_idle_trsh;
extern bool rx_align_2;

#define WIL_NAME "wil6210"
#define WIL_FW_NAME "wil6210.fw" /* code */
#define WIL_FW2_NAME "wil6210.board" /* board & radio parameters */

#define WIL_MAX_BUS_REQUEST_KBPS 800000 /* ~6.1Gbps */

/**
 * extract bits [@b0:@b1] (inclusive) from the value @x
 * it should be @b0 <= @b1, or result is incorrect
 */
static inline u32 WIL_GET_BITS(u32 x, int b0, int b1)
{
	return (x >> b0) & ((1 << (b1 - b0 + 1)) - 1);
}

#define WIL6210_MEM_SIZE (2*1024*1024UL)

#define WIL_TX_Q_LEN_DEFAULT		(4000)
#define WIL_RX_RING_SIZE_ORDER_DEFAULT	(10)
#define WIL_TX_RING_SIZE_ORDER_DEFAULT	(10)
#define WIL_BCAST_RING_SIZE_ORDER_DEFAULT	(7)
#define WIL_BCAST_MCS0_LIMIT		(1024) /* limit for MCS0 frame size */
/* limit ring size in range [32..32k] */
#define WIL_RING_SIZE_ORDER_MIN	(5)
#define WIL_RING_SIZE_ORDER_MAX	(15)
#define WIL6210_MAX_TX_RINGS	(24) /* HW limit */
#define WIL6210_MAX_CID		(8) /* HW limit */
#define WIL6210_NAPI_BUDGET	(16) /* arbitrary */
#define WIL_MAX_AMPDU_SIZE	(64 * 1024) /* FW/HW limit */
#define WIL_MAX_AGG_WSIZE	(32) /* FW/HW limit */
/* Hardware offload block adds the following:
 * 26 bytes - 3-address QoS data header
 *  8 bytes - IV + EIV (for GCMP)
 *  8 bytes - SNAP
 * 16 bytes - MIC (for GCMP)
 *  4 bytes - CRC
 */
#define WIL_MAX_MPDU_OVERHEAD	(62)

/* Calculate MAC buffer size for the firmware. It includes all overhead,
 * as it will go over the air, and need to be 8 byte aligned
 */
static inline u32 wil_mtu2macbuf(u32 mtu)
{
	return ALIGN(mtu + WIL_MAX_MPDU_OVERHEAD, 8);
}

/* MTU for Ethernet need to take into account 8-byte SNAP header
 * to be added when encapsulating Ethernet frame into 802.11
 */
#define WIL_MAX_ETH_MTU		(IEEE80211_MAX_DATA_LEN_DMG - 8)
/* Max supported by wil6210 value for interrupt threshold is 5sec. */
#define WIL6210_ITR_TRSH_MAX (5000000)
#define WIL6210_ITR_TX_INTERFRAME_TIMEOUT_DEFAULT (13) /* usec */
#define WIL6210_ITR_RX_INTERFRAME_TIMEOUT_DEFAULT (13) /* usec */
#define WIL6210_ITR_TX_MAX_BURST_DURATION_DEFAULT (500) /* usec */
#define WIL6210_ITR_RX_MAX_BURST_DURATION_DEFAULT (500) /* usec */
#define WIL6210_FW_RECOVERY_RETRIES	(5) /* try to recover this many times */
#define WIL6210_FW_RECOVERY_TO	msecs_to_jiffies(5000)
#define WIL6210_SCAN_TO		msecs_to_jiffies(10000)
#define WIL6210_RX_HIGH_TRSH_INIT		(0)
#define WIL6210_RX_HIGH_TRSH_DEFAULT \
				(1 << (WIL_RX_RING_SIZE_ORDER_DEFAULT - 3))
/* Hardware definitions begin */

/*
 * Mapping
 * RGF File      | Host addr    |  FW addr
 *               |              |
 * user_rgf      | 0x000000     | 0x880000
 *  dma_rgf      | 0x001000     | 0x881000
 * pcie_rgf      | 0x002000     | 0x882000
 *               |              |
 */

/* Where various structures placed in host address space */
#define WIL6210_FW_HOST_OFF      (0x880000UL)

#define HOSTADDR(fwaddr)        (fwaddr - WIL6210_FW_HOST_OFF)

/*
 * Interrupt control registers block
 *
 * each interrupt controlled by the same bit in all registers
 */
struct RGF_ICR {
	u32 ICC; /* Cause Control, RW: 0 - W1C, 1 - COR */
	u32 ICR; /* Cause, W1C/COR depending on ICC */
	u32 ICM; /* Cause masked (ICR & ~IMV), W1C/COR depending on ICC */
	u32 ICS; /* Cause Set, WO */
	u32 IMV; /* Mask, RW+S/C */
	u32 IMS; /* Mask Set, write 1 to set */
	u32 IMC; /* Mask Clear, write 1 to clear */
} __packed;

struct RGF_BL {
	u32 ready;		/* 0x880A3C bit [0] */
#define BIT_BL_READY	BIT(0)
	u32 version;		/* 0x880A40 version of the BL struct */
	u32 rf_type;		/* 0x880A44 ID of the connected RF */
	u32 baseband_type;	/* 0x880A48 ID of the baseband */
	u8  mac_address[ETH_ALEN]; /* 0x880A4C permanent MAC */
	u8 pad[2];
} __packed;

/* registers - FW addresses */
#define RGF_USER_USAGE_1		(0x880004)
#define RGF_USER_USAGE_6		(0x880018)
#define RGF_USER_HW_MACHINE_STATE	(0x8801dc)
	#define HW_MACHINE_BOOT_DONE	(0x3fffffd)
#define RGF_USER_USER_CPU_0		(0x8801e0)
	#define BIT_USER_USER_CPU_MAN_RST	BIT(1) /* user_cpu_man_rst */
#define RGF_USER_MAC_CPU_0		(0x8801fc)
	#define BIT_USER_MAC_CPU_MAN_RST	BIT(1) /* mac_cpu_man_rst */
#define RGF_USER_USER_SCRATCH_PAD	(0x8802bc)
#define RGF_USER_BL			(0x880A3C) /* Boot Loader */
#define RGF_USER_FW_REV_ID		(0x880a8c) /* chip revision */
#define RGF_USER_CLKS_CTL_0		(0x880abc)
	#define BIT_USER_CLKS_CAR_AHB_SW_SEL	BIT(1) /* ref clk/PLL */
	#define BIT_USER_CLKS_RST_PWGD	BIT(11) /* reset on "power good" */
#define RGF_USER_CLKS_CTL_SW_RST_VEC_0	(0x880b04)
#define RGF_USER_CLKS_CTL_SW_RST_VEC_1	(0x880b08)
#define RGF_USER_CLKS_CTL_SW_RST_VEC_2	(0x880b0c)
#define RGF_USER_CLKS_CTL_SW_RST_VEC_3	(0x880b10)
#define RGF_USER_CLKS_CTL_SW_RST_MASK_0	(0x880b14)
	#define BIT_HPAL_PERST_FROM_PAD	BIT(6)
	#define BIT_CAR_PERST_RST	BIT(7)
#define RGF_USER_USER_ICR		(0x880b4c) /* struct RGF_ICR */
	#define BIT_USER_USER_ICR_SW_INT_2	BIT(18)
#define RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_0	(0x880c18)
#define RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_1	(0x880c2c)
#define RGF_USER_SPARROW_M_4			(0x880c50) /* Sparrow */
	#define BIT_SPARROW_M_4_SEL_SLEEP_OR_REF	BIT(2)

#define RGF_DMA_EP_TX_ICR		(0x881bb4) /* struct RGF_ICR */
	#define BIT_DMA_EP_TX_ICR_TX_DONE	BIT(0)
	#define BIT_DMA_EP_TX_ICR_TX_DONE_N(n)	BIT(n+1) /* n = [0..23] */
#define RGF_DMA_EP_RX_ICR		(0x881bd0) /* struct RGF_ICR */
	#define BIT_DMA_EP_RX_ICR_RX_DONE	BIT(0)
	#define BIT_DMA_EP_RX_ICR_RX_HTRSH	BIT(1)
#define RGF_DMA_EP_MISC_ICR		(0x881bec) /* struct RGF_ICR */
	#define BIT_DMA_EP_MISC_ICR_RX_HTRSH	BIT(0)
	#define BIT_DMA_EP_MISC_ICR_TX_NO_ACT	BIT(1)
	#define BIT_DMA_EP_MISC_ICR_FW_INT(n)	BIT(28+n) /* n = [0..3] */

/* Legacy interrupt moderation control (before Sparrow v2)*/
#define RGF_DMA_ITR_CNT_TRSH		(0x881c5c)
#define RGF_DMA_ITR_CNT_DATA		(0x881c60)
#define RGF_DMA_ITR_CNT_CRL		(0x881c64)
	#define BIT_DMA_ITR_CNT_CRL_EN		BIT(0)
	#define BIT_DMA_ITR_CNT_CRL_EXT_TICK	BIT(1)
	#define BIT_DMA_ITR_CNT_CRL_FOREVER	BIT(2)
	#define BIT_DMA_ITR_CNT_CRL_CLR		BIT(3)
	#define BIT_DMA_ITR_CNT_CRL_REACH_TRSH	BIT(4)

/* Offload control (Sparrow B0+) */
#define RGF_DMA_OFUL_NID_0		(0x881cd4)
	#define BIT_DMA_OFUL_NID_0_RX_EXT_TR_EN		BIT(0)
	#define BIT_DMA_OFUL_NID_0_TX_EXT_TR_EN		BIT(1)
	#define BIT_DMA_OFUL_NID_0_RX_EXT_A3_SRC	BIT(2)
	#define BIT_DMA_OFUL_NID_0_TX_EXT_A3_SRC	BIT(3)

/* New (sparrow v2+) interrupt moderation control */
#define RGF_DMA_ITR_TX_DESQ_NO_MOD		(0x881d40)
#define RGF_DMA_ITR_TX_CNT_TRSH			(0x881d34)
#define RGF_DMA_ITR_TX_CNT_DATA			(0x881d38)
#define RGF_DMA_ITR_TX_CNT_CTL			(0x881d3c)
	#define BIT_DMA_ITR_TX_CNT_CTL_EN		BIT(0)
	#define BIT_DMA_ITR_TX_CNT_CTL_EXT_TIC_SEL	BIT(1)
	#define BIT_DMA_ITR_TX_CNT_CTL_FOREVER		BIT(2)
	#define BIT_DMA_ITR_TX_CNT_CTL_CLR		BIT(3)
	#define BIT_DMA_ITR_TX_CNT_CTL_REACHED_TRESH	BIT(4)
	#define BIT_DMA_ITR_TX_CNT_CTL_CROSS_EN		BIT(5)
	#define BIT_DMA_ITR_TX_CNT_CTL_FREE_RUNNIG	BIT(6)
#define RGF_DMA_ITR_TX_IDL_CNT_TRSH			(0x881d60)
#define RGF_DMA_ITR_TX_IDL_CNT_DATA			(0x881d64)
#define RGF_DMA_ITR_TX_IDL_CNT_CTL			(0x881d68)
	#define BIT_DMA_ITR_TX_IDL_CNT_CTL_EN			BIT(0)
	#define BIT_DMA_ITR_TX_IDL_CNT_CTL_EXT_TIC_SEL		BIT(1)
	#define BIT_DMA_ITR_TX_IDL_CNT_CTL_FOREVER		BIT(2)
	#define BIT_DMA_ITR_TX_IDL_CNT_CTL_CLR			BIT(3)
	#define BIT_DMA_ITR_TX_IDL_CNT_CTL_REACHED_TRESH	BIT(4)
#define RGF_DMA_ITR_RX_DESQ_NO_MOD		(0x881d50)
#define RGF_DMA_ITR_RX_CNT_TRSH			(0x881d44)
#define RGF_DMA_ITR_RX_CNT_DATA			(0x881d48)
#define RGF_DMA_ITR_RX_CNT_CTL			(0x881d4c)
	#define BIT_DMA_ITR_RX_CNT_CTL_EN		BIT(0)
	#define BIT_DMA_ITR_RX_CNT_CTL_EXT_TIC_SEL	BIT(1)
	#define BIT_DMA_ITR_RX_CNT_CTL_FOREVER		BIT(2)
	#define BIT_DMA_ITR_RX_CNT_CTL_CLR		BIT(3)
	#define BIT_DMA_ITR_RX_CNT_CTL_REACHED_TRESH	BIT(4)
	#define BIT_DMA_ITR_RX_CNT_CTL_CROSS_EN		BIT(5)
	#define BIT_DMA_ITR_RX_CNT_CTL_FREE_RUNNIG	BIT(6)
#define RGF_DMA_ITR_RX_IDL_CNT_TRSH			(0x881d54)
#define RGF_DMA_ITR_RX_IDL_CNT_DATA			(0x881d58)
#define RGF_DMA_ITR_RX_IDL_CNT_CTL			(0x881d5c)
	#define BIT_DMA_ITR_RX_IDL_CNT_CTL_EN			BIT(0)
	#define BIT_DMA_ITR_RX_IDL_CNT_CTL_EXT_TIC_SEL		BIT(1)
	#define BIT_DMA_ITR_RX_IDL_CNT_CTL_FOREVER		BIT(2)
	#define BIT_DMA_ITR_RX_IDL_CNT_CTL_CLR			BIT(3)
	#define BIT_DMA_ITR_RX_IDL_CNT_CTL_REACHED_TRESH	BIT(4)

#define RGF_DMA_PSEUDO_CAUSE		(0x881c68)
#define RGF_DMA_PSEUDO_CAUSE_MASK_SW	(0x881c6c)
#define RGF_DMA_PSEUDO_CAUSE_MASK_FW	(0x881c70)
	#define BIT_DMA_PSEUDO_CAUSE_RX		BIT(0)
	#define BIT_DMA_PSEUDO_CAUSE_TX		BIT(1)
	#define BIT_DMA_PSEUDO_CAUSE_MISC	BIT(2)

#define RGF_HP_CTRL			(0x88265c)
#define RGF_PCIE_LOS_COUNTER_CTL	(0x882dc4)

/* MAC timer, usec, for packet lifetime */
#define RGF_MAC_MTRL_COUNTER_0		(0x886aa8)

#define RGF_CAF_ICR			(0x88946c) /* struct RGF_ICR */
#define RGF_CAF_OSC_CONTROL		(0x88afa4)
	#define BIT_CAF_OSC_XTAL_EN		BIT(0)
#define RGF_CAF_PLL_LOCK_STATUS		(0x88afec)
	#define BIT_CAF_OSC_DIG_XTAL_STABLE	BIT(0)

#define RGF_USER_JTAG_DEV_ID	(0x880b34) /* device ID */
	#define JTAG_DEV_ID_SPARROW_B0	(0x2632072f)

enum {
	HW_VER_UNKNOWN,
	HW_VER_SPARROW_B0, /* JTAG_DEV_ID_SPARROW_B0 */
};

/* popular locations */
#define HOST_MBOX   HOSTADDR(RGF_USER_USER_SCRATCH_PAD)
#define HOST_SW_INT (HOSTADDR(RGF_USER_USER_ICR) + \
	offsetof(struct RGF_ICR, ICS))
#define SW_INT_MBOX BIT_USER_USER_ICR_SW_INT_2

/* ISR register bits */
#define ISR_MISC_FW_READY	BIT_DMA_EP_MISC_ICR_FW_INT(0)
#define ISR_MISC_MBOX_EVT	BIT_DMA_EP_MISC_ICR_FW_INT(1)
#define ISR_MISC_FW_ERROR	BIT_DMA_EP_MISC_ICR_FW_INT(3)

/* Hardware definitions end */
struct fw_map {
	u32 from; /* linker address - from, inclusive */
	u32 to;   /* linker address - to, exclusive */
	u32 host; /* PCI/Host address - BAR0 + 0x880000 */
	const char *name; /* for debugfs */
};

/* array size should be in sync with actual definition in the wmi.c */
extern const struct fw_map fw_mapping[7];

/**
 * mk_cidxtid - construct @cidxtid field
 * @cid: CID value
 * @tid: TID value
 *
 * @cidxtid field encoded as bits 0..3 - CID; 4..7 - TID
 */
static inline u8 mk_cidxtid(u8 cid, u8 tid)
{
	return ((tid & 0xf) << 4) | (cid & 0xf);
}

/**
 * parse_cidxtid - parse @cidxtid field
 * @cid: store CID value here
 * @tid: store TID value here
 *
 * @cidxtid field encoded as bits 0..3 - CID; 4..7 - TID
 */
static inline void parse_cidxtid(u8 cidxtid, u8 *cid, u8 *tid)
{
	*cid = cidxtid & 0xf;
	*tid = (cidxtid >> 4) & 0xf;
}

struct wil6210_mbox_ring {
	u32 base;
	u16 entry_size; /* max. size of mbox entry, incl. all headers */
	u16 size;
	u32 tail;
	u32 head;
} __packed;

struct wil6210_mbox_ring_desc {
	__le32 sync;
	__le32 addr;
} __packed;

/* at HOST_OFF_WIL6210_MBOX_CTL */
struct wil6210_mbox_ctl {
	struct wil6210_mbox_ring tx;
	struct wil6210_mbox_ring rx;
} __packed;

struct wil6210_mbox_hdr {
	__le16 seq;
	__le16 len; /* payload, bytes after this header */
	__le16 type;
	u8 flags;
	u8 reserved;
} __packed;

#define WIL_MBOX_HDR_TYPE_WMI (0)

/* max. value for wil6210_mbox_hdr.len */
#define MAX_MBOXITEM_SIZE   (240)

/**
 * struct wil6210_mbox_hdr_wmi - WMI header
 *
 * @mid: MAC ID
 *	00 - default, created by FW
 *	01..0f - WiFi ports, driver to create
 *	10..fe - debug
 *	ff - broadcast
 * @id: command/event ID
 * @timestamp: FW fills for events, free-running msec timer
 */
struct wil6210_mbox_hdr_wmi {
	u8 mid;
	u8 reserved;
	__le16 id;
	__le32 timestamp;
} __packed;

struct pending_wmi_event {
	struct list_head list;
	struct {
		struct wil6210_mbox_hdr hdr;
		struct wil6210_mbox_hdr_wmi wmi;
		u8 data[0];
	} __packed event;
};

enum { /* for wil_ctx.mapped_as */
	wil_mapped_as_none = 0,
	wil_mapped_as_single = 1,
	wil_mapped_as_page = 2,
};

/**
 * struct wil_ctx - software context for Vring descriptor
 */
struct wil_ctx {
	struct sk_buff *skb;
	u8 nr_frags;
	u8 mapped_as;
};

union vring_desc;

struct vring {
	dma_addr_t pa;
	volatile union vring_desc *va; /* vring_desc[size], WriteBack by DMA */
	u16 size; /* number of vring_desc elements */
	u32 swtail;
	u32 swhead;
	u32 hwtail; /* write here to inform hw */
	struct wil_ctx *ctx; /* ctx[size] - software context */
};

/**
 * Additional data for Tx Vring
 */
struct vring_tx_data {
	int enabled;
	cycles_t idle, last_idle, begin;
	u8 agg_wsize; /* agreed aggregation window, 0 - no agg */
	u16 agg_timeout;
	u8 agg_amsdu;
	bool addba_in_progress; /* if set, agg_xxx is for request in progress */
	spinlock_t lock;
};

enum { /* for wil6210_priv.status */
	wil_status_fwready = 0,
	wil_status_fwconnecting,
	wil_status_fwconnected,
	wil_status_dontscan,
	wil_status_reset_done,
	wil_status_irqen, /* FIXME: interrupts enabled - for debug */
	wil_status_napi_en, /* NAPI enabled protected by wil->mutex */
	wil_status_last /* keep last */
};

struct pci_dev;

/**
 * struct tid_ampdu_rx - TID aggregation information (Rx).
 *
 * @reorder_buf: buffer to reorder incoming aggregated MPDUs
 * @reorder_time: jiffies when skb was added
 * @session_timer: check if peer keeps Tx-ing on the TID (by timeout value)
 * @reorder_timer: releases expired frames from the reorder buffer.
 * @last_rx: jiffies of last rx activity
 * @head_seq_num: head sequence number in reordering buffer.
 * @stored_mpdu_num: number of MPDUs in reordering buffer
 * @ssn: Starting Sequence Number expected to be aggregated.
 * @buf_size: buffer size for incoming A-MPDUs
 * @timeout: reset timer value (in TUs).
 * @dialog_token: dialog token for aggregation session
 * @rcu_head: RCU head used for freeing this struct
 *
 * This structure's lifetime is managed by RCU, assignments to
 * the array holding it must hold the aggregation mutex.
 *
 */
struct wil_tid_ampdu_rx {
	struct sk_buff **reorder_buf;
	unsigned long *reorder_time;
	struct timer_list session_timer;
	struct timer_list reorder_timer;
	unsigned long last_rx;
	u16 head_seq_num;
	u16 stored_mpdu_num;
	u16 ssn;
	u16 buf_size;
	u16 timeout;
	u16 ssn_last_drop;
	u8 dialog_token;
	bool first_time; /* is it 1-st time this buffer used? */
};

enum wil_sta_status {
	wil_sta_unused = 0,
	wil_sta_conn_pending = 1,
	wil_sta_connected = 2,
};

#define WIL_STA_TID_NUM (16)

struct wil_net_stats {
	unsigned long	rx_packets;
	unsigned long	tx_packets;
	unsigned long	rx_bytes;
	unsigned long	tx_bytes;
	unsigned long	tx_errors;
	unsigned long	rx_dropped;
	u16 last_mcs_rx;
};

/**
 * struct wil_sta_info - data for peer
 *
 * Peer identified by its CID (connection ID)
 * NIC performs beam forming for each peer;
 * if no beam forming done, frame exchange is not
 * possible.
 */
struct wil_sta_info {
	u8 addr[ETH_ALEN];
	enum wil_sta_status status;
	struct wil_net_stats stats;
	bool data_port_open; /* can send any data, not only EAPOL */
	/* Rx BACK */
	struct wil_tid_ampdu_rx *tid_rx[WIL_STA_TID_NUM];
	spinlock_t tid_rx_lock; /* guarding tid_rx array */
	unsigned long tid_rx_timer_expired[BITS_TO_LONGS(WIL_STA_TID_NUM)];
	unsigned long tid_rx_stop_requested[BITS_TO_LONGS(WIL_STA_TID_NUM)];
};

enum {
	fw_recovery_idle = 0,
	fw_recovery_pending = 1,
	fw_recovery_running = 2,
};

enum {
	hw_capability_last
};

struct wil_back_rx {
	struct list_head list;
	/* request params, converted to CPU byte order - what we asked for */
	u8 cidxtid;
	u8 dialog_token;
	u16 ba_param_set;
	u16 ba_timeout;
	u16 ba_seq_ctrl;
};

struct wil_back_tx {
	struct list_head list;
	/* request params, converted to CPU byte order - what we asked for */
	u8 ringid;
	u8 agg_wsize;
	u16 agg_timeout;
};

struct wil_probe_client_req {
	struct list_head list;
	u64 cookie;
	u8 cid;
};

struct wil6210_priv {
	struct pci_dev *pdev;
	int n_msi;
	struct wireless_dev *wdev;
	void __iomem *csr;
	DECLARE_BITMAP(status, wil_status_last);
	u32 fw_version;
	u32 hw_version;
	const char *hw_name;
	DECLARE_BITMAP(hw_capabilities, hw_capability_last);
	u8 n_mids; /* number of additional MIDs as reported by FW */
	u32 recovery_count; /* num of FW recovery attempts in a short time */
	u32 recovery_state; /* FW recovery state machine */
	unsigned long last_fw_recovery; /* jiffies of last fw recovery */
	wait_queue_head_t wq; /* for all wait_event() use */
	/* profile */
	u32 monitor_flags;
	u32 privacy; /* secure connection? */
	int sinfo_gen;
	u32 ap_isolate; /* no intra-BSS communication */
	/* interrupt moderation */
	u32 tx_max_burst_duration;
	u32 tx_interframe_timeout;
	u32 rx_max_burst_duration;
	u32 rx_interframe_timeout;
	/* cached ISR registers */
	u32 isr_misc;
	/* mailbox related */
	struct mutex wmi_mutex;
	struct wil6210_mbox_ctl mbox_ctl;
	struct completion wmi_ready;
	struct completion wmi_call;
	u16 wmi_seq;
	u16 reply_id; /**< wait for this WMI event */
	void *reply_buf;
	u16 reply_size;
	struct workqueue_struct *wmi_wq; /* for deferred calls */
	struct work_struct wmi_event_worker;
	struct workqueue_struct *wq_service;
	struct work_struct connect_worker;
	struct work_struct disconnect_worker;
	struct work_struct fw_error_worker;	/* for FW error recovery */
	struct timer_list connect_timer;
	struct timer_list scan_timer; /* detect scan timeout */
	int pending_connect_cid;
	struct list_head pending_wmi_ev;
	/*
	 * protect pending_wmi_ev
	 * - fill in IRQ from wil6210_irq_misc,
	 * - consumed in thread by wmi_event_worker
	 */
	spinlock_t wmi_ev_lock;
	struct napi_struct napi_rx;
	struct napi_struct napi_tx;
	/* BACK */
	struct list_head back_rx_pending;
	struct mutex back_rx_mutex; /* protect @back_rx_pending */
	struct work_struct back_rx_worker;
	struct list_head back_tx_pending;
	struct mutex back_tx_mutex; /* protect @back_tx_pending */
	struct work_struct back_tx_worker;
	/* keep alive */
	struct list_head probe_client_pending;
	struct mutex probe_client_mutex; /* protect @probe_client_pending */
	struct work_struct probe_client_worker;
	/* DMA related */
	struct vring vring_rx;
	struct vring vring_tx[WIL6210_MAX_TX_RINGS];
	struct vring_tx_data vring_tx_data[WIL6210_MAX_TX_RINGS];
	u8 vring2cid_tid[WIL6210_MAX_TX_RINGS][2]; /* [0] - CID, [1] - TID */
	struct wil_sta_info sta[WIL6210_MAX_CID];
	int bcast_vring;
	/* scan */
	struct cfg80211_scan_request *scan_request;

	struct mutex mutex; /* for wil6210_priv access in wil_{up|down} */
	/* statistics */
	atomic_t isr_count_rx, isr_count_tx;
	/* debugfs */
	struct dentry *debug;
	struct debugfs_blob_wrapper blobs[ARRAY_SIZE(fw_mapping)];

	void *platform_handle;
	struct wil_platform_ops platform_ops;
};

#define wil_to_wiphy(i) (i->wdev->wiphy)
#define wil_to_dev(i) (wiphy_dev(wil_to_wiphy(i)))
#define wiphy_to_wil(w) (struct wil6210_priv *)(wiphy_priv(w))
#define wil_to_wdev(i) (i->wdev)
#define wdev_to_wil(w) (struct wil6210_priv *)(wdev_priv(w))
#define wil_to_ndev(i) (wil_to_wdev(i)->netdev)
#define ndev_to_wil(n) (wdev_to_wil(n->ieee80211_ptr))

__printf(2, 3)
void wil_dbg_trace(struct wil6210_priv *wil, const char *fmt, ...);
__printf(2, 3)
void wil_err(struct wil6210_priv *wil, const char *fmt, ...);
__printf(2, 3)
void wil_err_ratelimited(struct wil6210_priv *wil, const char *fmt, ...);
__printf(2, 3)
void wil_info(struct wil6210_priv *wil, const char *fmt, ...);
#define wil_dbg(wil, fmt, arg...) do { \
	netdev_dbg(wil_to_ndev(wil), fmt, ##arg); \
	wil_dbg_trace(wil, fmt, ##arg); \
} while (0)

#define wil_dbg_irq(wil, fmt, arg...) wil_dbg(wil, "DBG[ IRQ]" fmt, ##arg)
#define wil_dbg_txrx(wil, fmt, arg...) wil_dbg(wil, "DBG[TXRX]" fmt, ##arg)
#define wil_dbg_wmi(wil, fmt, arg...) wil_dbg(wil, "DBG[ WMI]" fmt, ##arg)
#define wil_dbg_misc(wil, fmt, arg...) wil_dbg(wil, "DBG[MISC]" fmt, ##arg)

#if defined(CONFIG_DYNAMIC_DEBUG)
#define wil_hex_dump_txrx(prefix_str, prefix_type, rowsize,	\
			  groupsize, buf, len, ascii)		\
			  print_hex_dump_debug("DBG[TXRX]" prefix_str,\
					 prefix_type, rowsize,	\
					 groupsize, buf, len, ascii)

#define wil_hex_dump_wmi(prefix_str, prefix_type, rowsize,	\
			 groupsize, buf, len, ascii)		\
			 print_hex_dump_debug("DBG[ WMI]" prefix_str,\
					prefix_type, rowsize,	\
					groupsize, buf, len, ascii)
#else /* defined(CONFIG_DYNAMIC_DEBUG) */
static inline
void wil_hex_dump_txrx(const char *prefix_str, int prefix_type, int rowsize,
		       int groupsize, const void *buf, size_t len, bool ascii)
{
}

static inline
void wil_hex_dump_wmi(const char *prefix_str, int prefix_type, int rowsize,
		      int groupsize, const void *buf, size_t len, bool ascii)
{
}
#endif /* defined(CONFIG_DYNAMIC_DEBUG) */

void wil_memcpy_fromio_32(void *dst, const volatile void __iomem *src,
			  size_t count);
void wil_memcpy_toio_32(volatile void __iomem *dst, const void *src,
			size_t count);

void *wil_if_alloc(struct device *dev, void __iomem *csr);
void wil_if_free(struct wil6210_priv *wil);
int wil_if_add(struct wil6210_priv *wil);
void wil_if_remove(struct wil6210_priv *wil);
int wil_priv_init(struct wil6210_priv *wil);
void wil_priv_deinit(struct wil6210_priv *wil);
int wil_reset(struct wil6210_priv *wil, bool no_fw);
void wil_fw_error_recovery(struct wil6210_priv *wil);
void wil_set_recovery_state(struct wil6210_priv *wil, int state);
int wil_up(struct wil6210_priv *wil);
int __wil_up(struct wil6210_priv *wil);
int wil_down(struct wil6210_priv *wil);
int __wil_down(struct wil6210_priv *wil);
void wil_mbox_ring_le2cpus(struct wil6210_mbox_ring *r);
int wil_find_cid(struct wil6210_priv *wil, const u8 *mac);
void wil_set_ethtoolops(struct net_device *ndev);

void __iomem *wmi_buffer(struct wil6210_priv *wil, __le32 ptr);
void __iomem *wmi_addr(struct wil6210_priv *wil, u32 ptr);
int wmi_read_hdr(struct wil6210_priv *wil, __le32 ptr,
		 struct wil6210_mbox_hdr *hdr);
int wmi_send(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len);
void wmi_recv_cmd(struct wil6210_priv *wil);
int wmi_call(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len,
	     u16 reply_id, void *reply, u8 reply_size, int to_msec);
void wmi_event_worker(struct work_struct *work);
void wmi_event_flush(struct wil6210_priv *wil);
int wmi_set_ssid(struct wil6210_priv *wil, u8 ssid_len, const void *ssid);
int wmi_get_ssid(struct wil6210_priv *wil, u8 *ssid_len, void *ssid);
int wmi_set_channel(struct wil6210_priv *wil, int channel);
int wmi_get_channel(struct wil6210_priv *wil, int *channel);
int wmi_del_cipher_key(struct wil6210_priv *wil, u8 key_index,
		       const void *mac_addr);
int wmi_add_cipher_key(struct wil6210_priv *wil, u8 key_index,
		       const void *mac_addr, int key_len, const void *key);
int wmi_echo(struct wil6210_priv *wil);
int wmi_set_ie(struct wil6210_priv *wil, u8 type, u16 ie_len, const void *ie);
int wmi_rx_chain_add(struct wil6210_priv *wil, struct vring *vring);
int wmi_p2p_cfg(struct wil6210_priv *wil, int channel);
int wmi_rxon(struct wil6210_priv *wil, bool on);
int wmi_get_temperature(struct wil6210_priv *wil, u32 *t_m, u32 *t_r);
int wmi_disconnect_sta(struct wil6210_priv *wil, const u8 *mac, u16 reason);
int wmi_addba(struct wil6210_priv *wil, u8 ringid, u8 size, u16 timeout);
int wmi_delba_tx(struct wil6210_priv *wil, u8 ringid, u16 reason);
int wmi_delba_rx(struct wil6210_priv *wil, u8 cidxtid, u16 reason);
int wmi_addba_rx_resp(struct wil6210_priv *wil, u8 cid, u8 tid, u8 token,
		      u16 status, bool amsdu, u16 agg_wsize, u16 timeout);
int wil_addba_rx_request(struct wil6210_priv *wil, u8 cidxtid,
			 u8 dialog_token, __le16 ba_param_set,
			 __le16 ba_timeout, __le16 ba_seq_ctrl);
void wil_back_rx_worker(struct work_struct *work);
void wil_back_rx_flush(struct wil6210_priv *wil);
int wil_addba_tx_request(struct wil6210_priv *wil, u8 ringid, u16 wsize);
void wil_back_tx_worker(struct work_struct *work);
void wil_back_tx_flush(struct wil6210_priv *wil);

void wil6210_clear_irq(struct wil6210_priv *wil);
int wil6210_init_irq(struct wil6210_priv *wil, int irq);
void wil6210_fini_irq(struct wil6210_priv *wil, int irq);
void wil_mask_irq(struct wil6210_priv *wil);
void wil_unmask_irq(struct wil6210_priv *wil);
void wil_configure_interrupt_moderation(struct wil6210_priv *wil);
void wil_disable_irq(struct wil6210_priv *wil);
void wil_enable_irq(struct wil6210_priv *wil);
int wil_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
			 struct cfg80211_mgmt_tx_params *params,
			 u64 *cookie);

int wil6210_debugfs_init(struct wil6210_priv *wil);
void wil6210_debugfs_remove(struct wil6210_priv *wil);
int wil_cid_fill_sinfo(struct wil6210_priv *wil, int cid,
		       struct station_info *sinfo);

struct wireless_dev *wil_cfg80211_init(struct device *dev);
void wil_wdev_free(struct wil6210_priv *wil);

int wmi_set_mac_address(struct wil6210_priv *wil, void *addr);
int wmi_pcp_start(struct wil6210_priv *wil, int bi, u8 wmi_nettype, u8 chan);
int wmi_pcp_stop(struct wil6210_priv *wil);
void wil6210_disconnect(struct wil6210_priv *wil, const u8 *bssid,
			u16 reason_code, bool from_event);
void wil_probe_client_flush(struct wil6210_priv *wil);
void wil_probe_client_worker(struct work_struct *work);

int wil_rx_init(struct wil6210_priv *wil, u16 size);
void wil_rx_fini(struct wil6210_priv *wil);

/* TX API */
int wil_vring_init_tx(struct wil6210_priv *wil, int id, int size,
		      int cid, int tid);
void wil_vring_fini_tx(struct wil6210_priv *wil, int id);
int wil_vring_init_bcast(struct wil6210_priv *wil, int id, int size);
int wil_bcast_init(struct wil6210_priv *wil);
void wil_bcast_fini(struct wil6210_priv *wil);

netdev_tx_t wil_start_xmit(struct sk_buff *skb, struct net_device *ndev);
int wil_tx_complete(struct wil6210_priv *wil, int ringid);
void wil6210_unmask_irq_tx(struct wil6210_priv *wil);

/* RX API */
void wil_rx_handle(struct wil6210_priv *wil, int *quota);
void wil6210_unmask_irq_rx(struct wil6210_priv *wil);

int wil_iftype_nl2wmi(enum nl80211_iftype type);

int wil_ioctl(struct wil6210_priv *wil, void __user *data, int cmd);
int wil_request_firmware(struct wil6210_priv *wil, const char *name);

#endif /* __WIL6210_H__ */