summaryrefslogtreecommitdiffstats
path: root/drivers/net/wireless/ath/ath6kl/core.h
blob: 4d9c6f1426987aab4b9cb419dbb101438dee9027 (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
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
/*
 * Copyright (c) 2010-2011 Atheros Communications Inc.
 * Copyright (c) 2011-2012 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 CORE_H
#define CORE_H

#include <linux/etherdevice.h>
#include <linux/rtnetlink.h>
#include <linux/firmware.h>
#include <linux/sched.h>
#include <linux/circ_buf.h>
#include <net/cfg80211.h>
#include "htc.h"
#include "wmi.h"
#include "bmi.h"
#include "target.h"

#define MAX_ATH6KL                        1
#define ATH6KL_MAX_RX_BUFFERS             16
#define ATH6KL_BUFFER_SIZE                1664
#define ATH6KL_MAX_AMSDU_RX_BUFFERS       4
#define ATH6KL_AMSDU_REFILL_THRESHOLD     3
#define ATH6KL_AMSDU_BUFFER_SIZE     (WMI_MAX_AMSDU_RX_DATA_FRAME_LENGTH + 128)
#define MAX_MSDU_SUBFRAME_PAYLOAD_LEN	1508
#define MIN_MSDU_SUBFRAME_PAYLOAD_LEN	46

#define USER_SAVEDKEYS_STAT_INIT     0
#define USER_SAVEDKEYS_STAT_RUN      1

#define ATH6KL_TX_TIMEOUT      10
#define ATH6KL_MAX_ENDPOINTS   4
#define MAX_NODE_NUM           15

#define ATH6KL_APSD_ALL_FRAME		0xFFFF
#define ATH6KL_APSD_NUM_OF_AC		0x4
#define ATH6KL_APSD_FRAME_MASK		0xF

/* Extra bytes for htc header alignment */
#define ATH6KL_HTC_ALIGN_BYTES 3

/* MAX_HI_COOKIE_NUM are reserved for high priority traffic */
#define MAX_DEF_COOKIE_NUM                180
#define MAX_HI_COOKIE_NUM                 18	/* 10% of MAX_COOKIE_NUM */
#define MAX_COOKIE_NUM                 (MAX_DEF_COOKIE_NUM + MAX_HI_COOKIE_NUM)

#define MAX_DEFAULT_SEND_QUEUE_DEPTH      (MAX_DEF_COOKIE_NUM / WMM_NUM_AC)

#define DISCON_TIMER_INTVAL               10000  /* in msec */

/* Channel dwell time in fg scan */
#define ATH6KL_FG_SCAN_INTERVAL		50 /* in ms */

/* includes also the null byte */
#define ATH6KL_FIRMWARE_MAGIC               "QCA-ATH6KL"

enum ath6kl_fw_ie_type {
	ATH6KL_FW_IE_FW_VERSION = 0,
	ATH6KL_FW_IE_TIMESTAMP = 1,
	ATH6KL_FW_IE_OTP_IMAGE = 2,
	ATH6KL_FW_IE_FW_IMAGE = 3,
	ATH6KL_FW_IE_PATCH_IMAGE = 4,
	ATH6KL_FW_IE_RESERVED_RAM_SIZE = 5,
	ATH6KL_FW_IE_CAPABILITIES = 6,
	ATH6KL_FW_IE_PATCH_ADDR = 7,
	ATH6KL_FW_IE_BOARD_ADDR = 8,
	ATH6KL_FW_IE_VIF_MAX = 9,
};

enum ath6kl_fw_capability {
	ATH6KL_FW_CAPABILITY_HOST_P2P = 0,
	ATH6KL_FW_CAPABILITY_SCHED_SCAN = 1,

	/*
	 * Firmware is capable of supporting P2P mgmt operations on a
	 * station interface. After group formation, the station
	 * interface will become a P2P client/GO interface as the case may be
	 */
	ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX,

	/*
	 * Firmware has support to cleanup inactive stations
	 * in AP mode.
	 */
	ATH6KL_FW_CAPABILITY_INACTIVITY_TIMEOUT,

	/* Firmware has support to override rsn cap of rsn ie */
	ATH6KL_FW_CAPABILITY_RSN_CAP_OVERRIDE,

	/* this needs to be last */
	ATH6KL_FW_CAPABILITY_MAX,
};

#define ATH6KL_CAPABILITY_LEN (ALIGN(ATH6KL_FW_CAPABILITY_MAX, 32) / 32)

struct ath6kl_fw_ie {
	__le32 id;
	__le32 len;
	u8 data[0];
};

#define ATH6KL_FW_API2_FILE "fw-2.bin"
#define ATH6KL_FW_API3_FILE "fw-3.bin"

/* AR6003 1.0 definitions */
#define AR6003_HW_1_0_VERSION                 0x300002ba

/* AR6003 2.0 definitions */
#define AR6003_HW_2_0_VERSION                 0x30000384
#define AR6003_HW_2_0_PATCH_DOWNLOAD_ADDRESS  0x57e910
#define AR6003_HW_2_0_FW_DIR			"ath6k/AR6003/hw2.0"
#define AR6003_HW_2_0_OTP_FILE			"otp.bin.z77"
#define AR6003_HW_2_0_FIRMWARE_FILE		"athwlan.bin.z77"
#define AR6003_HW_2_0_TCMD_FIRMWARE_FILE	"athtcmd_ram.bin"
#define AR6003_HW_2_0_PATCH_FILE		"data.patch.bin"
#define AR6003_HW_2_0_BOARD_DATA_FILE AR6003_HW_2_0_FW_DIR "/bdata.bin"
#define AR6003_HW_2_0_DEFAULT_BOARD_DATA_FILE \
			AR6003_HW_2_0_FW_DIR "/bdata.SD31.bin"

/* AR6003 3.0 definitions */
#define AR6003_HW_2_1_1_VERSION                 0x30000582
#define AR6003_HW_2_1_1_FW_DIR			"ath6k/AR6003/hw2.1.1"
#define AR6003_HW_2_1_1_OTP_FILE		"otp.bin"
#define AR6003_HW_2_1_1_FIRMWARE_FILE		"athwlan.bin"
#define AR6003_HW_2_1_1_TCMD_FIRMWARE_FILE	"athtcmd_ram.bin"
#define AR6003_HW_2_1_1_UTF_FIRMWARE_FILE	"utf.bin"
#define AR6003_HW_2_1_1_TESTSCRIPT_FILE	"nullTestFlow.bin"
#define AR6003_HW_2_1_1_PATCH_FILE		"data.patch.bin"
#define AR6003_HW_2_1_1_BOARD_DATA_FILE AR6003_HW_2_1_1_FW_DIR "/bdata.bin"
#define AR6003_HW_2_1_1_DEFAULT_BOARD_DATA_FILE	\
			AR6003_HW_2_1_1_FW_DIR "/bdata.SD31.bin"

/* AR6004 1.0 definitions */
#define AR6004_HW_1_0_VERSION                 0x30000623
#define AR6004_HW_1_0_FW_DIR			"ath6k/AR6004/hw1.0"
#define AR6004_HW_1_0_FIRMWARE_FILE		"fw.ram.bin"
#define AR6004_HW_1_0_BOARD_DATA_FILE         AR6004_HW_1_0_FW_DIR "/bdata.bin"
#define AR6004_HW_1_0_DEFAULT_BOARD_DATA_FILE \
	AR6004_HW_1_0_FW_DIR "/bdata.DB132.bin"

/* AR6004 1.1 definitions */
#define AR6004_HW_1_1_VERSION                 0x30000001
#define AR6004_HW_1_1_FW_DIR			"ath6k/AR6004/hw1.1"
#define AR6004_HW_1_1_FIRMWARE_FILE		"fw.ram.bin"
#define AR6004_HW_1_1_BOARD_DATA_FILE         AR6004_HW_1_1_FW_DIR "/bdata.bin"
#define AR6004_HW_1_1_DEFAULT_BOARD_DATA_FILE \
	AR6004_HW_1_1_FW_DIR "/bdata.DB132.bin"

/* AR6004 1.2 definitions */
#define AR6004_HW_1_2_VERSION                 0x300007e8
#define AR6004_HW_1_2_FW_DIR			"ath6k/AR6004/hw1.2"
#define AR6004_HW_1_2_FIRMWARE_FILE           "fw.ram.bin"
#define AR6004_HW_1_2_BOARD_DATA_FILE         AR6004_HW_1_2_FW_DIR "/bdata.bin"
#define AR6004_HW_1_2_DEFAULT_BOARD_DATA_FILE \
	AR6004_HW_1_2_FW_DIR "/bdata.bin"

/* Per STA data, used in AP mode */
#define STA_PS_AWAKE		BIT(0)
#define	STA_PS_SLEEP		BIT(1)
#define	STA_PS_POLLED		BIT(2)
#define STA_PS_APSD_TRIGGER     BIT(3)
#define STA_PS_APSD_EOSP        BIT(4)

/* HTC TX packet tagging definitions */
#define ATH6KL_CONTROL_PKT_TAG    HTC_TX_PACKET_TAG_USER_DEFINED
#define ATH6KL_DATA_PKT_TAG       (ATH6KL_CONTROL_PKT_TAG + 1)

#define AR6003_CUST_DATA_SIZE 16

#define AGGR_WIN_IDX(x, y)          ((x) % (y))
#define AGGR_INCR_IDX(x, y)         AGGR_WIN_IDX(((x) + 1), (y))
#define AGGR_DCRM_IDX(x, y)         AGGR_WIN_IDX(((x) - 1), (y))
#define ATH6KL_MAX_SEQ_NO		0xFFF
#define ATH6KL_NEXT_SEQ_NO(x)		(((x) + 1) & ATH6KL_MAX_SEQ_NO)

#define NUM_OF_TIDS         8
#define AGGR_SZ_DEFAULT     8

#define AGGR_WIN_SZ_MIN     2
#define AGGR_WIN_SZ_MAX     8

#define TID_WINDOW_SZ(_x)   ((_x) << 1)

#define AGGR_NUM_OF_FREE_NETBUFS    16

#define AGGR_RX_TIMEOUT     400	/* in ms */

#define WMI_TIMEOUT (2 * HZ)

#define MBOX_YIELD_LIMIT 99

#define ATH6KL_DEFAULT_LISTEN_INTVAL	100 /* in TUs */
#define ATH6KL_DEFAULT_BMISS_TIME	1500
#define ATH6KL_MAX_WOW_LISTEN_INTL	300 /* in TUs */
#define ATH6KL_MAX_BMISS_TIME		5000

/* configuration lags */
/*
 * ATH6KL_CONF_IGNORE_ERP_BARKER: Ignore the barker premable in
 * ERP IE of beacon to determine the short premable support when
 * sending (Re)Assoc req.
 * ATH6KL_CONF_IGNORE_PS_FAIL_EVT_IN_SCAN: Don't send the power
 * module state transition failure events which happen during
 * scan, to the host.
 */
#define ATH6KL_CONF_IGNORE_ERP_BARKER		BIT(0)
#define ATH6KL_CONF_IGNORE_PS_FAIL_EVT_IN_SCAN  BIT(1)
#define ATH6KL_CONF_ENABLE_11N			BIT(2)
#define ATH6KL_CONF_ENABLE_TX_BURST		BIT(3)
#define ATH6KL_CONF_UART_DEBUG			BIT(4)

#define P2P_WILDCARD_SSID_LEN			7 /* DIRECT- */

enum wlan_low_pwr_state {
	WLAN_POWER_STATE_ON,
	WLAN_POWER_STATE_CUT_PWR,
	WLAN_POWER_STATE_DEEP_SLEEP,
	WLAN_POWER_STATE_WOW
};

enum sme_state {
	SME_DISCONNECTED,
	SME_CONNECTING,
	SME_CONNECTED
};

struct skb_hold_q {
	struct sk_buff *skb;
	bool is_amsdu;
	u16 seq_no;
};

struct rxtid {
	bool aggr;
	bool progress;
	bool timer_mon;
	u16 win_sz;
	u16 seq_next;
	u32 hold_q_sz;
	struct skb_hold_q *hold_q;
	struct sk_buff_head q;

	/*
	 * FIXME: No clue what this should protect. Apparently it should
	 * protect some of the fields above but they are also accessed
	 * without taking the lock.
	 */
	spinlock_t lock;
};

struct rxtid_stats {
	u32 num_into_aggr;
	u32 num_dups;
	u32 num_oow;
	u32 num_mpdu;
	u32 num_amsdu;
	u32 num_delivered;
	u32 num_timeouts;
	u32 num_hole;
	u32 num_bar;
};

struct aggr_info_conn {
	u8 aggr_sz;
	u8 timer_scheduled;
	struct timer_list timer;
	struct net_device *dev;
	struct rxtid rx_tid[NUM_OF_TIDS];
	struct rxtid_stats stat[NUM_OF_TIDS];
	struct aggr_info *aggr_info;
};

struct aggr_info {
	struct aggr_info_conn *aggr_conn;
	struct sk_buff_head rx_amsdu_freeq;
};

struct ath6kl_wep_key {
	u8 key_index;
	u8 key_len;
	u8 key[64];
};

#define ATH6KL_KEY_SEQ_LEN 8

struct ath6kl_key {
	u8 key[WLAN_MAX_KEY_LEN];
	u8 key_len;
	u8 seq[ATH6KL_KEY_SEQ_LEN];
	u8 seq_len;
	u32 cipher;
};

struct ath6kl_node_mapping {
	u8 mac_addr[ETH_ALEN];
	u8 ep_id;
	u8 tx_pend;
};

struct ath6kl_cookie {
	struct sk_buff *skb;
	u32 map_no;
	struct htc_packet htc_pkt;
	struct ath6kl_cookie *arc_list_next;
};

struct ath6kl_mgmt_buff {
	struct list_head list;
	u32 freq;
	u32 wait;
	u32 id;
	bool no_cck;
	size_t len;
	u8 buf[0];
};

struct ath6kl_sta {
	u16 sta_flags;
	u8 mac[ETH_ALEN];
	u8 aid;
	u8 keymgmt;
	u8 ucipher;
	u8 auth;
	u8 wpa_ie[ATH6KL_MAX_IE];
	struct sk_buff_head psq;

	/* protects psq, mgmt_psq, apsdq, and mgmt_psq_len fields */
	spinlock_t psq_lock;

	struct list_head mgmt_psq;
	size_t mgmt_psq_len;
	u8 apsd_info;
	struct sk_buff_head apsdq;
	struct aggr_info_conn *aggr_conn;
};

struct ath6kl_version {
	u32 target_ver;
	u32 wlan_ver;
	u32 abi_ver;
};

struct ath6kl_bmi {
	u32 cmd_credits;
	bool done_sent;
	u8 *cmd_buf;
	u32 max_data_size;
	u32 max_cmd_size;
};

struct target_stats {
	u64 tx_pkt;
	u64 tx_byte;
	u64 tx_ucast_pkt;
	u64 tx_ucast_byte;
	u64 tx_mcast_pkt;
	u64 tx_mcast_byte;
	u64 tx_bcast_pkt;
	u64 tx_bcast_byte;
	u64 tx_rts_success_cnt;
	u64 tx_pkt_per_ac[4];

	u64 tx_err;
	u64 tx_fail_cnt;
	u64 tx_retry_cnt;
	u64 tx_mult_retry_cnt;
	u64 tx_rts_fail_cnt;

	u64 rx_pkt;
	u64 rx_byte;
	u64 rx_ucast_pkt;
	u64 rx_ucast_byte;
	u64 rx_mcast_pkt;
	u64 rx_mcast_byte;
	u64 rx_bcast_pkt;
	u64 rx_bcast_byte;
	u64 rx_frgment_pkt;

	u64 rx_err;
	u64 rx_crc_err;
	u64 rx_key_cache_miss;
	u64 rx_decrypt_err;
	u64 rx_dupl_frame;

	u64 tkip_local_mic_fail;
	u64 tkip_cnter_measures_invoked;
	u64 tkip_replays;
	u64 tkip_fmt_err;
	u64 ccmp_fmt_err;
	u64 ccmp_replays;

	u64 pwr_save_fail_cnt;

	u64 cs_bmiss_cnt;
	u64 cs_low_rssi_cnt;
	u64 cs_connect_cnt;
	u64 cs_discon_cnt;

	s32 tx_ucast_rate;
	s32 rx_ucast_rate;

	u32 lq_val;

	u32 wow_pkt_dropped;
	u16 wow_evt_discarded;

	s16 noise_floor_calib;
	s16 cs_rssi;
	s16 cs_ave_beacon_rssi;
	u8 cs_ave_beacon_snr;
	u8 cs_last_roam_msec;
	u8 cs_snr;

	u8 wow_host_pkt_wakeups;
	u8 wow_host_evt_wakeups;

	u32 arp_received;
	u32 arp_matched;
	u32 arp_replied;
};

struct ath6kl_mbox_info {
	u32 htc_addr;
	u32 htc_ext_addr;
	u32 htc_ext_sz;

	u32 block_size;

	u32 gmbox_addr;

	u32 gmbox_sz;
};

/*
 * 802.11i defines an extended IV for use with non-WEP ciphers.
 * When the EXTIV bit is set in the key id byte an additional
 * 4 bytes immediately follow the IV for TKIP.  For CCMP the
 * EXTIV bit is likewise set but the 8 bytes represent the
 * CCMP header rather than IV+extended-IV.
 */

#define ATH6KL_KEYBUF_SIZE 16
#define ATH6KL_MICBUF_SIZE (8+8)	/* space for both tx and rx */

#define ATH6KL_KEY_XMIT  0x01
#define ATH6KL_KEY_RECV  0x02
#define ATH6KL_KEY_DEFAULT   0x80	/* default xmit key */

/* Initial group key for AP mode */
struct ath6kl_req_key {
	bool valid;
	u8 key_index;
	int key_type;
	u8 key[WLAN_MAX_KEY_LEN];
	u8 key_len;
};

enum ath6kl_hif_type {
	ATH6KL_HIF_TYPE_SDIO,
	ATH6KL_HIF_TYPE_USB,
};

enum ath6kl_htc_type {
	ATH6KL_HTC_TYPE_MBOX,
	ATH6KL_HTC_TYPE_PIPE,
};

/* Max number of filters that hw supports */
#define ATH6K_MAX_MC_FILTERS_PER_LIST 7
struct ath6kl_mc_filter {
	struct list_head list;
	char hw_addr[ATH6KL_MCAST_FILTER_MAC_ADDR_SIZE];
};

struct ath6kl_htcap {
	bool ht_enable;
	u8 ampdu_factor;
	unsigned short cap_info;
};

/*
 * Driver's maximum limit, note that some firmwares support only one vif
 * and the runtime (current) limit must be checked from ar->vif_max.
 */
#define ATH6KL_VIF_MAX	3

/* vif flags info */
enum ath6kl_vif_state {
	CONNECTED,
	CONNECT_PEND,
	WMM_ENABLED,
	NETQ_STOPPED,
	DTIM_EXPIRED,
	NETDEV_REGISTERED,
	CLEAR_BSSFILTER_ON_BEACON,
	DTIM_PERIOD_AVAIL,
	WLAN_ENABLED,
	STATS_UPDATE_PEND,
	HOST_SLEEP_MODE_CMD_PROCESSED,
	NETDEV_MCAST_ALL_ON,
	NETDEV_MCAST_ALL_OFF,
};

struct ath6kl_vif {
	struct list_head list;
	struct wireless_dev wdev;
	struct net_device *ndev;
	struct ath6kl *ar;
	/* Lock to protect vif specific net_stats and flags */
	spinlock_t if_lock;
	u8 fw_vif_idx;
	unsigned long flags;
	int ssid_len;
	u8 ssid[IEEE80211_MAX_SSID_LEN];
	u8 dot11_auth_mode;
	u8 auth_mode;
	u8 prwise_crypto;
	u8 prwise_crypto_len;
	u8 grp_crypto;
	u8 grp_crypto_len;
	u8 def_txkey_index;
	u8 next_mode;
	u8 nw_type;
	u8 bssid[ETH_ALEN];
	u8 req_bssid[ETH_ALEN];
	u16 ch_hint;
	u16 bss_ch;
	struct ath6kl_wep_key wep_key_list[WMI_MAX_KEY_INDEX + 1];
	struct ath6kl_key keys[WMI_MAX_KEY_INDEX + 1];
	struct aggr_info *aggr_cntxt;
	struct ath6kl_htcap htcap;

	struct timer_list disconnect_timer;
	struct timer_list sched_scan_timer;

	struct cfg80211_scan_request *scan_req;
	enum sme_state sme_state;
	int reconnect_flag;
	u32 last_roc_id;
	u32 last_cancel_roc_id;
	u32 send_action_id;
	bool probe_req_report;
	u16 next_chan;
	enum nl80211_channel_type next_ch_type;
	enum ieee80211_band next_ch_band;
	u16 assoc_bss_beacon_int;
	u16 listen_intvl_t;
	u16 bmiss_time_t;
	u16 bg_scan_period;
	u8 assoc_bss_dtim_period;
	struct net_device_stats net_stats;
	struct target_stats target_stats;
	struct wmi_connect_cmd profile;

	struct list_head mc_filter;
};

#define WOW_LIST_ID		0
#define WOW_HOST_REQ_DELAY	500 /* ms */

#define ATH6KL_SCHED_SCAN_RESULT_DELAY 5000 /* ms */

/* Flag info */
enum ath6kl_dev_state {
	WMI_ENABLED,
	WMI_READY,
	WMI_CTRL_EP_FULL,
	TESTMODE,
	DESTROY_IN_PROGRESS,
	SKIP_SCAN,
	ROAM_TBL_PEND,
	FIRST_BOOT,
};

enum ath6kl_state {
	ATH6KL_STATE_OFF,
	ATH6KL_STATE_ON,
	ATH6KL_STATE_SUSPENDING,
	ATH6KL_STATE_RESUMING,
	ATH6KL_STATE_DEEPSLEEP,
	ATH6KL_STATE_CUTPOWER,
	ATH6KL_STATE_WOW,
	ATH6KL_STATE_SCHED_SCAN,
};

struct ath6kl {
	struct device *dev;
	struct wiphy *wiphy;

	enum ath6kl_state state;
	unsigned int testmode;

	struct ath6kl_bmi bmi;
	const struct ath6kl_hif_ops *hif_ops;
	const struct ath6kl_htc_ops *htc_ops;
	struct wmi *wmi;
	int tx_pending[ENDPOINT_MAX];
	int total_tx_data_pend;
	struct htc_target *htc_target;
	enum ath6kl_hif_type hif_type;
	void *hif_priv;
	struct list_head vif_list;
	/* Lock to avoid race in vif_list entries among add/del/traverse */
	spinlock_t list_lock;
	u8 num_vif;
	unsigned int vif_max;
	u8 max_norm_iface;
	u8 avail_idx_map;

	/*
	 * Protects at least amsdu_rx_buffer_queue, ath6kl_alloc_cookie()
	 * calls, tx_pending and total_tx_data_pend.
	 */
	spinlock_t lock;

	struct semaphore sem;
	u8 lrssi_roam_threshold;
	struct ath6kl_version version;
	u32 target_type;
	u8 tx_pwr;
	struct ath6kl_node_mapping node_map[MAX_NODE_NUM];
	u8 ibss_ps_enable;
	bool ibss_if_active;
	u8 node_num;
	u8 next_ep_id;
	struct ath6kl_cookie *cookie_list;
	u32 cookie_count;
	enum htc_endpoint_id ac2ep_map[WMM_NUM_AC];
	bool ac_stream_active[WMM_NUM_AC];
	u8 ac_stream_pri_map[WMM_NUM_AC];
	u8 hiac_stream_active_pri;
	u8 ep2ac_map[ENDPOINT_MAX];
	enum htc_endpoint_id ctrl_ep;
	struct ath6kl_htc_credit_info credit_state_info;
	u32 connect_ctrl_flags;
	u32 user_key_ctrl;
	u8 usr_bss_filter;
	struct ath6kl_sta sta_list[AP_MAX_NUM_STA];
	u8 sta_list_index;
	struct ath6kl_req_key ap_mode_bkey;
	struct sk_buff_head mcastpsq;
	u32 want_ch_switch;

	/*
	 * FIXME: protects access to mcastpsq but is actually useless as
	 * all skbe_queue_*() functions provide serialisation themselves
	 */
	spinlock_t mcastpsq_lock;

	u8 intra_bss;
	struct wmi_ap_mode_stat ap_stats;
	u8 ap_country_code[3];
	struct list_head amsdu_rx_buffer_queue;
	u8 rx_meta_ver;
	enum wlan_low_pwr_state wlan_pwr_state;
	u8 mac_addr[ETH_ALEN];
#define AR_MCAST_FILTER_MAC_ADDR_SIZE  4
	struct {
		void *rx_report;
		size_t rx_report_len;
	} tm;

	struct ath6kl_hw {
		u32 id;
		const char *name;
		u32 dataset_patch_addr;
		u32 app_load_addr;
		u32 app_start_override_addr;
		u32 board_ext_data_addr;
		u32 reserved_ram_size;
		u32 board_addr;
		u32 refclk_hz;
		u32 uarttx_pin;
		u32 testscript_addr;
		enum wmi_phy_cap cap;

		struct ath6kl_hw_fw {
			const char *dir;
			const char *otp;
			const char *fw;
			const char *tcmd;
			const char *patch;
			const char *utf;
			const char *testscript;
		} fw;

		const char *fw_board;
		const char *fw_default_board;
	} hw;

	u16 conf_flags;
	u16 suspend_mode;
	u16 wow_suspend_mode;
	wait_queue_head_t event_wq;
	struct ath6kl_mbox_info mbox_info;

	struct ath6kl_cookie cookie_mem[MAX_COOKIE_NUM];
	unsigned long flag;

	u8 *fw_board;
	size_t fw_board_len;

	u8 *fw_otp;
	size_t fw_otp_len;

	u8 *fw;
	size_t fw_len;

	u8 *fw_patch;
	size_t fw_patch_len;

	u8 *fw_testscript;
	size_t fw_testscript_len;

	unsigned int fw_api;
	unsigned long fw_capabilities[ATH6KL_CAPABILITY_LEN];

	struct workqueue_struct *ath6kl_wq;

	struct dentry *debugfs_phy;

	bool p2p;

	bool wiphy_registered;

#ifdef CONFIG_ATH6KL_DEBUG
	struct {
		struct sk_buff_head fwlog_queue;
		struct completion fwlog_completion;
		bool fwlog_open;

		u32 fwlog_mask;

		unsigned int dbgfs_diag_reg;
		u32 diag_reg_addr_wr;
		u32 diag_reg_val_wr;

		struct {
			unsigned int invalid_rate;
		} war_stats;

		u8 *roam_tbl;
		unsigned int roam_tbl_len;

		u8 keepalive;
		u8 disc_timeout;
	} debug;
#endif /* CONFIG_ATH6KL_DEBUG */
};

static inline struct ath6kl *ath6kl_priv(struct net_device *dev)
{
	return ((struct ath6kl_vif *) netdev_priv(dev))->ar;
}

static inline u32 ath6kl_get_hi_item_addr(struct ath6kl *ar,
					  u32 item_offset)
{
	u32 addr = 0;

	if (ar->target_type == TARGET_TYPE_AR6003)
		addr = ATH6KL_AR6003_HI_START_ADDR + item_offset;
	else if (ar->target_type == TARGET_TYPE_AR6004)
		addr = ATH6KL_AR6004_HI_START_ADDR + item_offset;

	return addr;
}

int ath6kl_configure_target(struct ath6kl *ar);
void ath6kl_detect_error(unsigned long ptr);
void disconnect_timer_handler(unsigned long ptr);
void init_netdev(struct net_device *dev);
void ath6kl_cookie_init(struct ath6kl *ar);
void ath6kl_cookie_cleanup(struct ath6kl *ar);
void ath6kl_rx(struct htc_target *target, struct htc_packet *packet);
void ath6kl_tx_complete(struct htc_target *context,
			struct list_head *packet_queue);
enum htc_send_full_action ath6kl_tx_queue_full(struct htc_target *target,
					       struct htc_packet *packet);
void ath6kl_stop_txrx(struct ath6kl *ar);
void ath6kl_cleanup_amsdu_rxbufs(struct ath6kl *ar);
int ath6kl_diag_write32(struct ath6kl *ar, u32 address, __le32 value);
int ath6kl_diag_write(struct ath6kl *ar, u32 address, void *data, u32 length);
int ath6kl_diag_read32(struct ath6kl *ar, u32 address, u32 *value);
int ath6kl_diag_read(struct ath6kl *ar, u32 address, void *data, u32 length);
int ath6kl_read_fwlogs(struct ath6kl *ar);
void ath6kl_init_profile_info(struct ath6kl_vif *vif);
void ath6kl_tx_data_cleanup(struct ath6kl *ar);

struct ath6kl_cookie *ath6kl_alloc_cookie(struct ath6kl *ar);
void ath6kl_free_cookie(struct ath6kl *ar, struct ath6kl_cookie *cookie);
int ath6kl_data_tx(struct sk_buff *skb, struct net_device *dev);

struct aggr_info *aggr_init(struct ath6kl_vif *vif);
void aggr_conn_init(struct ath6kl_vif *vif, struct aggr_info *aggr_info,
		    struct aggr_info_conn *aggr_conn);
void ath6kl_rx_refill(struct htc_target *target,
		      enum htc_endpoint_id endpoint);
void ath6kl_refill_amsdu_rxbufs(struct ath6kl *ar, int count);
struct htc_packet *ath6kl_alloc_amsdu_rxbuf(struct htc_target *target,
					    enum htc_endpoint_id endpoint,
					    int len);
void aggr_module_destroy(struct aggr_info *aggr_info);
void aggr_reset_state(struct aggr_info_conn *aggr_conn);

struct ath6kl_sta *ath6kl_find_sta(struct ath6kl_vif *vif, u8 *node_addr);
struct ath6kl_sta *ath6kl_find_sta_by_aid(struct ath6kl *ar, u8 aid);

void ath6kl_ready_event(void *devt, u8 *datap, u32 sw_ver, u32 abi_ver,
			enum wmi_phy_cap cap);
int ath6kl_control_tx(void *devt, struct sk_buff *skb,
		      enum htc_endpoint_id eid);
void ath6kl_connect_event(struct ath6kl_vif *vif, u16 channel,
			  u8 *bssid, u16 listen_int,
			  u16 beacon_int, enum network_type net_type,
			  u8 beacon_ie_len, u8 assoc_req_len,
			  u8 assoc_resp_len, u8 *assoc_info);
void ath6kl_connect_ap_mode_bss(struct ath6kl_vif *vif, u16 channel);
void ath6kl_connect_ap_mode_sta(struct ath6kl_vif *vif, u16 aid, u8 *mac_addr,
				u8 keymgmt, u8 ucipher, u8 auth,
				u8 assoc_req_len, u8 *assoc_info, u8 apsd_info);
void ath6kl_disconnect_event(struct ath6kl_vif *vif, u8 reason,
			     u8 *bssid, u8 assoc_resp_len,
			     u8 *assoc_info, u16 prot_reason_status);
void ath6kl_tkip_micerr_event(struct ath6kl_vif *vif, u8 keyid, bool ismcast);
void ath6kl_txpwr_rx_evt(void *devt, u8 tx_pwr);
void ath6kl_scan_complete_evt(struct ath6kl_vif *vif, int status);
void ath6kl_tgt_stats_event(struct ath6kl_vif *vif, u8 *ptr, u32 len);
void ath6kl_indicate_tx_activity(void *devt, u8 traffic_class, bool active);
enum htc_endpoint_id ath6kl_ac2_endpoint_id(void *devt, u8 ac);

void ath6kl_pspoll_event(struct ath6kl_vif *vif, u8 aid);

void ath6kl_dtimexpiry_event(struct ath6kl_vif *vif);
void ath6kl_disconnect(struct ath6kl_vif *vif);
void aggr_recv_delba_req_evt(struct ath6kl_vif *vif, u8 tid);
void aggr_recv_addba_req_evt(struct ath6kl_vif *vif, u8 tid, u16 seq_no,
			     u8 win_sz);
void ath6kl_wakeup_event(void *dev);

void ath6kl_reset_device(struct ath6kl *ar, u32 target_type,
			 bool wait_fot_compltn, bool cold_reset);
void ath6kl_init_control_info(struct ath6kl_vif *vif);
struct ath6kl_vif *ath6kl_vif_first(struct ath6kl *ar);
void ath6kl_cleanup_vif(struct ath6kl_vif *vif, bool wmi_ready);
int ath6kl_init_hw_start(struct ath6kl *ar);
int ath6kl_init_hw_stop(struct ath6kl *ar);
int ath6kl_init_fetch_firmwares(struct ath6kl *ar);
int ath6kl_init_hw_params(struct ath6kl *ar);

void ath6kl_check_wow_status(struct ath6kl *ar);

void ath6kl_core_tx_complete(struct ath6kl *ar, struct sk_buff *skb);
void ath6kl_core_rx_complete(struct ath6kl *ar, struct sk_buff *skb, u8 pipe);

struct ath6kl *ath6kl_core_create(struct device *dev);
int ath6kl_core_init(struct ath6kl *ar, enum ath6kl_htc_type htc_type);
void ath6kl_core_cleanup(struct ath6kl *ar);
void ath6kl_core_destroy(struct ath6kl *ar);

#endif /* CORE_H */