aboutsummaryrefslogtreecommitdiff
path: root/drivers/net/wireless/iwlwifi/dvm/dev.h
blob: 054f728f6266fb6f4f4425e7824f62a0e910730c (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
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
/******************************************************************************
 *
 * Copyright(c) 2003 - 2012 Intel Corporation. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
 *
 * The full GNU General Public License is included in this distribution in the
 * file called LICENSE.
 *
 * Contact Information:
 *  Intel Linux Wireless <ilw@linux.intel.com>
 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
 *
 *****************************************************************************/
/*
 * Please use this file (dev.h) for driver implementation definitions.
 * Please use commands.h for uCode API definitions.
 */

#ifndef __iwl_dev_h__
#define __iwl_dev_h__

#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/wait.h>
#include <linux/leds.h>
#include <linux/slab.h>
#include <linux/mutex.h>

#include "iwl-fw.h"
#include "iwl-eeprom-parse.h"
#include "iwl-csr.h"
#include "iwl-debug.h"
#include "iwl-agn-hw.h"
#include "iwl-op-mode.h"
#include "iwl-notif-wait.h"
#include "iwl-trans.h"

#include "led.h"
#include "power.h"
#include "rs.h"
#include "tt.h"

#include "iwl-test.h"

/* CT-KILL constants */
#define CT_KILL_THRESHOLD_LEGACY   110 /* in Celsius */
#define CT_KILL_THRESHOLD	   114 /* in Celsius */
#define CT_KILL_EXIT_THRESHOLD     95  /* in Celsius */

/* Default noise level to report when noise measurement is not available.
 *   This may be because we're:
 *   1)  Not associated  no beacon statistics being sent to driver)
 *   2)  Scanning (noise measurement does not apply to associated channel)
 * Use default noise value of -127 ... this is below the range of measurable
 *   Rx dBm for all agn devices, so it can indicate "unmeasurable" to user.
 *   Also, -127 works better than 0 when averaging frames with/without
 *   noise info (e.g. averaging might be done in app); measured dBm values are
 *   always negative ... using a negative value as the default keeps all
 *   averages within an s8's (used in some apps) range of negative values. */
#define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)

/*
 * RTS threshold here is total size [2347] minus 4 FCS bytes
 * Per spec:
 *   a value of 0 means RTS on all data/management packets
 *   a value > max MSDU size means no RTS
 * else RTS for data/management frames where MPDU is larger
 *   than RTS value.
 */
#define DEFAULT_RTS_THRESHOLD     2347U
#define MIN_RTS_THRESHOLD         0U
#define MAX_RTS_THRESHOLD         2347U
#define MAX_MSDU_SIZE		  2304U
#define MAX_MPDU_SIZE		  2346U
#define DEFAULT_BEACON_INTERVAL   200U
#define	DEFAULT_SHORT_RETRY_LIMIT 7U
#define	DEFAULT_LONG_RETRY_LIMIT  4U

#define IWL_NUM_SCAN_RATES         (2)


#define IEEE80211_DATA_LEN              2304
#define IEEE80211_4ADDR_LEN             30
#define IEEE80211_HLEN                  (IEEE80211_4ADDR_LEN)
#define IEEE80211_FRAME_LEN             (IEEE80211_DATA_LEN + IEEE80211_HLEN)

#define SUP_RATE_11A_MAX_NUM_CHANNELS  8
#define SUP_RATE_11B_MAX_NUM_CHANNELS  4
#define SUP_RATE_11G_MAX_NUM_CHANNELS  12

#define IWL_SUPPORTED_RATES_IE_LEN         8

#define IWL_INVALID_RATE     0xFF
#define IWL_INVALID_VALUE    -1

union iwl_ht_rate_supp {
	u16 rates;
	struct {
		u8 siso_rate;
		u8 mimo_rate;
	};
};

struct iwl_ht_config {
	bool single_chain_sufficient;
	enum ieee80211_smps_mode smps; /* current smps mode */
};

/* QoS structures */
struct iwl_qos_info {
	int qos_active;
	struct iwl_qosparam_cmd def_qos_parm;
};

/**
 * enum iwl_agg_state
 *
 * The state machine of the BA agreement establishment / tear down.
 * These states relate to a specific RA / TID.
 *
 * @IWL_AGG_OFF: aggregation is not used
 * @IWL_AGG_STARTING: aggregation are starting (between start and oper)
 * @IWL_AGG_ON: aggregation session is up
 * @IWL_EMPTYING_HW_QUEUE_ADDBA: establishing a BA session - waiting for the
 *	HW queue to be empty from packets for this RA /TID.
 * @IWL_EMPTYING_HW_QUEUE_DELBA: tearing down a BA session - waiting for the
 *	HW queue to be empty from packets for this RA /TID.
 */
enum iwl_agg_state {
	IWL_AGG_OFF = 0,
	IWL_AGG_STARTING,
	IWL_AGG_ON,
	IWL_EMPTYING_HW_QUEUE_ADDBA,
	IWL_EMPTYING_HW_QUEUE_DELBA,
};

/**
 * struct iwl_ht_agg - aggregation state machine

 * This structs holds the states for the BA agreement establishment and tear
 * down. It also holds the state during the BA session itself. This struct is
 * duplicated for each RA / TID.

 * @rate_n_flags: Rate at which Tx was attempted. Holds the data between the
 *	Tx response (REPLY_TX), and the block ack notification
 *	(REPLY_COMPRESSED_BA).
 * @state: state of the BA agreement establishment / tear down.
 * @txq_id: Tx queue used by the BA session
 * @ssn: the first packet to be sent in AGG HW queue in Tx AGG start flow, or
 *	the first packet to be sent in legacy HW queue in Tx AGG stop flow.
 *	Basically when next_reclaimed reaches ssn, we can tell mac80211 that
 *	we are ready to finish the Tx AGG stop / start flow.
 * @wait_for_ba: Expect block-ack before next Tx reply
 */
struct iwl_ht_agg {
	u32 rate_n_flags;
	enum iwl_agg_state state;
	u16 txq_id;
	u16 ssn;
	bool wait_for_ba;
};

/**
 * struct iwl_tid_data - one for each RA / TID

 * This structs holds the states for each RA / TID.

 * @seq_number: the next WiFi sequence number to use
 * @next_reclaimed: the WiFi sequence number of the next packet to be acked.
 *	This is basically (last acked packet++).
 * @agg: aggregation state machine
 */
struct iwl_tid_data {
	u16 seq_number;
	u16 next_reclaimed;
	struct iwl_ht_agg agg;
};

/*
 * Structure should be accessed with sta_lock held. When station addition
 * is in progress (IWL_STA_UCODE_INPROGRESS) it is possible to access only
 * the commands (iwl_addsta_cmd and iwl_link_quality_cmd) without sta_lock
 * held.
 */
struct iwl_station_entry {
	struct iwl_addsta_cmd sta;
	u8 used, ctxid;
	struct iwl_link_quality_cmd *lq;
};

/*
 * iwl_station_priv: Driver's private station information
 *
 * When mac80211 creates a station it reserves some space (hw->sta_data_size)
 * in the structure for use by driver. This structure is places in that
 * space.
 */
struct iwl_station_priv {
	struct iwl_rxon_context *ctx;
	struct iwl_lq_sta lq_sta;
	atomic_t pending_frames;
	bool client;
	bool asleep;
	u8 max_agg_bufsize;
	u8 sta_id;
};

/**
 * struct iwl_vif_priv - driver's private per-interface information
 *
 * When mac80211 allocates a virtual interface, it can allocate
 * space for us to put data into.
 */
struct iwl_vif_priv {
	struct iwl_rxon_context *ctx;
	u8 ibss_bssid_sta_id;
};

struct iwl_sensitivity_ranges {
	u16 min_nrg_cck;

	u16 nrg_th_cck;
	u16 nrg_th_ofdm;

	u16 auto_corr_min_ofdm;
	u16 auto_corr_min_ofdm_mrc;
	u16 auto_corr_min_ofdm_x1;
	u16 auto_corr_min_ofdm_mrc_x1;

	u16 auto_corr_max_ofdm;
	u16 auto_corr_max_ofdm_mrc;
	u16 auto_corr_max_ofdm_x1;
	u16 auto_corr_max_ofdm_mrc_x1;

	u16 auto_corr_max_cck;
	u16 auto_corr_max_cck_mrc;
	u16 auto_corr_min_cck;
	u16 auto_corr_min_cck_mrc;

	u16 barker_corr_th_min;
	u16 barker_corr_th_min_mrc;
	u16 nrg_th_cca;
};


#define KELVIN_TO_CELSIUS(x) ((x)-273)
#define CELSIUS_TO_KELVIN(x) ((x)+273)


/******************************************************************************
 *
 * Functions implemented in core module which are forward declared here
 * for use by iwl-[4-5].c
 *
 * NOTE:  The implementation of these functions are not hardware specific
 * which is why they are in the core module files.
 *
 * Naming convention --
 * iwl_         <-- Is part of iwlwifi
 * iwlXXXX_     <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
 *
 ****************************************************************************/
extern void iwl_update_chain_flags(struct iwl_priv *priv);
extern const u8 iwl_bcast_addr[ETH_ALEN];

#define IWL_OPERATION_MODE_AUTO     0
#define IWL_OPERATION_MODE_HT_ONLY  1
#define IWL_OPERATION_MODE_MIXED    2
#define IWL_OPERATION_MODE_20MHZ    3

#define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000

/* Sensitivity and chain noise calibration */
#define INITIALIZATION_VALUE		0xFFFF
#define IWL_CAL_NUM_BEACONS		16
#define MAXIMUM_ALLOWED_PATHLOSS	15

#define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3

#define MAX_FA_OFDM  50
#define MIN_FA_OFDM  5
#define MAX_FA_CCK   50
#define MIN_FA_CCK   5

#define AUTO_CORR_STEP_OFDM       1

#define AUTO_CORR_STEP_CCK     3
#define AUTO_CORR_MAX_TH_CCK   160

#define NRG_DIFF               2
#define NRG_STEP_CCK           2
#define NRG_MARGIN             8
#define MAX_NUMBER_CCK_NO_FA 100

#define AUTO_CORR_CCK_MIN_VAL_DEF    (125)

#define CHAIN_A             0
#define CHAIN_B             1
#define CHAIN_C             2
#define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
#define ALL_BAND_FILTER			0xFF00
#define IN_BAND_FILTER			0xFF
#define MIN_AVERAGE_NOISE_MAX_VALUE	0xFFFFFFFF

#define NRG_NUM_PREV_STAT_L     20
#define NUM_RX_CHAINS           3

enum iwlagn_false_alarm_state {
	IWL_FA_TOO_MANY = 0,
	IWL_FA_TOO_FEW = 1,
	IWL_FA_GOOD_RANGE = 2,
};

enum iwlagn_chain_noise_state {
	IWL_CHAIN_NOISE_ALIVE = 0,  /* must be 0 */
	IWL_CHAIN_NOISE_ACCUMULATE,
	IWL_CHAIN_NOISE_CALIBRATED,
	IWL_CHAIN_NOISE_DONE,
};

/* Sensitivity calib data */
struct iwl_sensitivity_data {
	u32 auto_corr_ofdm;
	u32 auto_corr_ofdm_mrc;
	u32 auto_corr_ofdm_x1;
	u32 auto_corr_ofdm_mrc_x1;
	u32 auto_corr_cck;
	u32 auto_corr_cck_mrc;

	u32 last_bad_plcp_cnt_ofdm;
	u32 last_fa_cnt_ofdm;
	u32 last_bad_plcp_cnt_cck;
	u32 last_fa_cnt_cck;

	u32 nrg_curr_state;
	u32 nrg_prev_state;
	u32 nrg_value[10];
	u8  nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
	u32 nrg_silence_ref;
	u32 nrg_energy_idx;
	u32 nrg_silence_idx;
	u32 nrg_th_cck;
	s32 nrg_auto_corr_silence_diff;
	u32 num_in_cck_no_fa;
	u32 nrg_th_ofdm;

	u16 barker_corr_th_min;
	u16 barker_corr_th_min_mrc;
	u16 nrg_th_cca;
};

/* Chain noise (differential Rx gain) calib data */
struct iwl_chain_noise_data {
	u32 active_chains;
	u32 chain_noise_a;
	u32 chain_noise_b;
	u32 chain_noise_c;
	u32 chain_signal_a;
	u32 chain_signal_b;
	u32 chain_signal_c;
	u16 beacon_count;
	u8 disconn_array[NUM_RX_CHAINS];
	u8 delta_gain_code[NUM_RX_CHAINS];
	u8 radio_write;
	u8 state;
};

enum {
	MEASUREMENT_READY = (1 << 0),
	MEASUREMENT_ACTIVE = (1 << 1),
};

/* reply_tx_statistics (for _agn devices) */
struct reply_tx_error_statistics {
	u32 pp_delay;
	u32 pp_few_bytes;
	u32 pp_bt_prio;
	u32 pp_quiet_period;
	u32 pp_calc_ttak;
	u32 int_crossed_retry;
	u32 short_limit;
	u32 long_limit;
	u32 fifo_underrun;
	u32 drain_flow;
	u32 rfkill_flush;
	u32 life_expire;
	u32 dest_ps;
	u32 host_abort;
	u32 bt_retry;
	u32 sta_invalid;
	u32 frag_drop;
	u32 tid_disable;
	u32 fifo_flush;
	u32 insuff_cf_poll;
	u32 fail_hw_drop;
	u32 sta_color_mismatch;
	u32 unknown;
};

/* reply_agg_tx_statistics (for _agn devices) */
struct reply_agg_tx_error_statistics {
	u32 underrun;
	u32 bt_prio;
	u32 few_bytes;
	u32 abort;
	u32 last_sent_ttl;
	u32 last_sent_try;
	u32 last_sent_bt_kill;
	u32 scd_query;
	u32 bad_crc32;
	u32 response;
	u32 dump_tx;
	u32 delay_tx;
	u32 unknown;
};

/*
 * schedule the timer to wake up every UCODE_TRACE_PERIOD milliseconds
 * to perform continuous uCode event logging operation if enabled
 */
#define UCODE_TRACE_PERIOD (10)

/*
 * iwl_event_log: current uCode event log position
 *
 * @ucode_trace: enable/disable ucode continuous trace timer
 * @num_wraps: how many times the event buffer wraps
 * @next_entry:  the entry just before the next one that uCode would fill
 * @non_wraps_count: counter for no wrap detected when dump ucode events
 * @wraps_once_count: counter for wrap once detected when dump ucode events
 * @wraps_more_count: counter for wrap more than once detected
 *		      when dump ucode events
 */
struct iwl_event_log {
	bool ucode_trace;
	u32 num_wraps;
	u32 next_entry;
	int non_wraps_count;
	int wraps_once_count;
	int wraps_more_count;
};

#define IWL_DELAY_NEXT_FORCE_RF_RESET  (HZ*3)

/* BT Antenna Coupling Threshold (dB) */
#define IWL_BT_ANTENNA_COUPLING_THRESHOLD	(35)

/* Firmware reload counter and Timestamp */
#define IWL_MIN_RELOAD_DURATION		1000 /* 1000 ms */
#define IWL_MAX_CONTINUE_RELOAD_CNT	4


struct iwl_rf_reset {
	int reset_request_count;
	int reset_success_count;
	int reset_reject_count;
	unsigned long last_reset_jiffies;
};

enum iwl_rxon_context_id {
	IWL_RXON_CTX_BSS,
	IWL_RXON_CTX_PAN,

	NUM_IWL_RXON_CTX
};

/* extend beacon time format bit shifting  */
/*
 * for _agn devices
 * bits 31:22 - extended
 * bits 21:0  - interval
 */
#define IWLAGN_EXT_BEACON_TIME_POS	22

struct iwl_rxon_context {
	struct ieee80211_vif *vif;

	u8 mcast_queue;
	u8 ac_to_queue[IEEE80211_NUM_ACS];
	u8 ac_to_fifo[IEEE80211_NUM_ACS];

	/*
	 * We could use the vif to indicate active, but we
	 * also need it to be active during disabling when
	 * we already removed the vif for type setting.
	 */
	bool always_active, is_active;

	bool ht_need_multiple_chains;

	enum iwl_rxon_context_id ctxid;

	u32 interface_modes, exclusive_interface_modes;
	u8 unused_devtype, ap_devtype, ibss_devtype, station_devtype;

	/*
	 * We declare this const so it can only be
	 * changed via explicit cast within the
	 * routines that actually update the physical
	 * hardware.
	 */
	const struct iwl_rxon_cmd active;
	struct iwl_rxon_cmd staging;

	struct iwl_rxon_time_cmd timing;

	struct iwl_qos_info qos_data;

	u8 bcast_sta_id, ap_sta_id;

	u8 rxon_cmd, rxon_assoc_cmd, rxon_timing_cmd;
	u8 qos_cmd;
	u8 wep_key_cmd;

	struct iwl_wep_key wep_keys[WEP_KEYS_MAX];
	u8 key_mapping_keys;

	__le32 station_flags;

	int beacon_int;

	struct {
		bool non_gf_sta_present;
		u8 protection;
		bool enabled, is_40mhz;
		u8 extension_chan_offset;
	} ht;
};

enum iwl_scan_type {
	IWL_SCAN_NORMAL,
	IWL_SCAN_RADIO_RESET,
	IWL_SCAN_ROC,
};

/**
 * struct iwl_hw_params
 *
 * Holds the module parameters
 *
 * @tx_chains_num: Number of TX chains
 * @rx_chains_num: Number of RX chains
 * @ct_kill_threshold: temperature threshold - in hw dependent unit
 * @ct_kill_exit_threshold: when to reeable the device - in hw dependent unit
 *	relevant for 1000, 6000 and up
 * @struct iwl_sensitivity_ranges: range of sensitivity values
 * @use_rts_for_aggregation: use rts/cts protection for HT traffic
 */
struct iwl_hw_params {
	u8  tx_chains_num;
	u8  rx_chains_num;
	bool use_rts_for_aggregation;
	u32 ct_kill_threshold;
	u32 ct_kill_exit_threshold;

	const struct iwl_sensitivity_ranges *sens;
};

struct iwl_lib_ops {
	/* set hw dependent parameters */
	void (*set_hw_params)(struct iwl_priv *priv);
	int (*set_channel_switch)(struct iwl_priv *priv,
				  struct ieee80211_channel_switch *ch_switch);
	/* device specific configuration */
	void (*nic_config)(struct iwl_priv *priv);

	/* temperature */
	void (*temperature)(struct iwl_priv *priv);
};

struct iwl_wipan_noa_data {
	struct rcu_head rcu_head;
	u32 length;
	u8 data[];
};

/* Calibration disabling bit mask */
enum {
	IWL_CALIB_ENABLE_ALL			= 0,

	IWL_SENSITIVITY_CALIB_DISABLED		= BIT(0),
	IWL_CHAIN_NOISE_CALIB_DISABLED		= BIT(1),
	IWL_TX_POWER_CALIB_DISABLED		= BIT(2),

	IWL_CALIB_DISABLE_ALL			= 0xFFFFFFFF,
};

#define IWL_OP_MODE_GET_DVM(_iwl_op_mode) \
	((struct iwl_priv *) ((_iwl_op_mode)->op_mode_specific))

#define IWL_MAC80211_GET_DVM(_hw) \
	((struct iwl_priv *) ((struct iwl_op_mode *) \
	(_hw)->priv)->op_mode_specific)

struct iwl_priv {

	struct iwl_trans *trans;
	struct device *dev;		/* for debug prints only */
	const struct iwl_cfg *cfg;
	const struct iwl_fw *fw;
	const struct iwl_lib_ops *lib;
	unsigned long status;

	spinlock_t sta_lock;
	struct mutex mutex;

	unsigned long transport_queue_stop;
	bool passive_no_rx;
#define IWL_INVALID_MAC80211_QUEUE	0xff
	u8 queue_to_mac80211[IWL_MAX_HW_QUEUES];
	atomic_t queue_stop_count[IWL_MAX_HW_QUEUES];

	unsigned long agg_q_alloc[BITS_TO_LONGS(IWL_MAX_HW_QUEUES)];

	/* ieee device used by generic ieee processing code */
	struct ieee80211_hw *hw;

	struct list_head calib_results;

	struct workqueue_struct *workqueue;

	struct iwl_hw_params hw_params;

	enum ieee80211_band band;
	u8 valid_contexts;

	int (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
				       struct iwl_rx_cmd_buffer *rxb,
				       struct iwl_device_cmd *cmd);

	struct iwl_notif_wait_data notif_wait;

	/* spectrum measurement report caching */
	struct iwl_spectrum_notification measure_report;
	u8 measurement_status;

#define IWL_OWNERSHIP_DRIVER	0
#define IWL_OWNERSHIP_TM	1
	u8 ucode_owner;

	/* ucode beacon time */
	u32 ucode_beacon_time;
	int missed_beacon_threshold;

	/* track IBSS manager (last beacon) status */
	u32 ibss_manager;

	/* jiffies when last recovery from statistics was performed */
	unsigned long rx_statistics_jiffies;

	/*counters */
	u32 rx_handlers_stats[REPLY_MAX];

	/* rf reset */
	struct iwl_rf_reset rf_reset;

	/* firmware reload counter and timestamp */
	unsigned long reload_jiffies;
	int reload_count;
	bool ucode_loaded;
	bool init_ucode_run;		/* Don't run init uCode again */

	u8 plcp_delta_threshold;

	/* thermal calibration */
	s32 temperature;	/* Celsius */
	s32 last_temperature;

	struct iwl_wipan_noa_data __rcu *noa_data;

	/* Scan related variables */
	unsigned long scan_start;
	unsigned long scan_start_tsf;
	void *scan_cmd;
	enum ieee80211_band scan_band;
	struct cfg80211_scan_request *scan_request;
	struct ieee80211_vif *scan_vif;
	enum iwl_scan_type scan_type;
	u8 scan_tx_ant[IEEE80211_NUM_BANDS];
	u8 mgmt_tx_ant;

	/* max number of station keys */
	u8 sta_key_max_num;

	bool new_scan_threshold_behaviour;

	bool wowlan;

	/* EEPROM MAC addresses */
	struct mac_address addresses[2];

	struct iwl_rxon_context contexts[NUM_IWL_RXON_CTX];

	__le16 switch_channel;

	u8 start_calib;
	struct iwl_sensitivity_data sensitivity_data;
	struct iwl_chain_noise_data chain_noise_data;
	__le16 sensitivity_tbl[HD_TABLE_SIZE];
	__le16 enhance_sensitivity_tbl[ENHANCE_HD_TABLE_ENTRIES];

	struct iwl_ht_config current_ht_config;

	/* Rate scaling data */
	u8 retry_rate;

	int activity_timer_active;

	struct iwl_power_mgr power_data;
	struct iwl_tt_mgmt thermal_throttle;

	/* station table variables */
	int num_stations;
	struct iwl_station_entry stations[IWLAGN_STATION_COUNT];
	unsigned long ucode_key_table;
	struct iwl_tid_data tid_data[IWLAGN_STATION_COUNT][IWL_MAX_TID_COUNT];
	atomic_t num_aux_in_flight;

	u8 mac80211_registered;

	/* Indication if ieee80211_ops->open has been called */
	u8 is_open;

	enum nl80211_iftype iw_mode;

	/* Last Rx'd beacon timestamp */
	u64 timestamp;

	struct {
		__le32 flag;
		struct statistics_general_common common;
		struct statistics_rx_non_phy rx_non_phy;
		struct statistics_rx_phy rx_ofdm;
		struct statistics_rx_ht_phy rx_ofdm_ht;
		struct statistics_rx_phy rx_cck;
		struct statistics_tx tx;
#ifdef CONFIG_IWLWIFI_DEBUGFS
		struct statistics_bt_activity bt_activity;
		__le32 num_bt_kills, accum_num_bt_kills;
#endif
		spinlock_t lock;
	} statistics;
#ifdef CONFIG_IWLWIFI_DEBUGFS
	struct {
		struct statistics_general_common common;
		struct statistics_rx_non_phy rx_non_phy;
		struct statistics_rx_phy rx_ofdm;
		struct statistics_rx_ht_phy rx_ofdm_ht;
		struct statistics_rx_phy rx_cck;
		struct statistics_tx tx;
		struct statistics_bt_activity bt_activity;
	} accum_stats, delta_stats, max_delta_stats;
#endif

	/*
	 * reporting the number of tids has AGG on. 0 means
	 * no AGGREGATION
	 */
	u8 agg_tids_count;

	struct iwl_rx_phy_res last_phy_res;
	bool last_phy_res_valid;

	/*
	 * chain noise reset and gain commands are the
	 * two extra calibration commands follows the standard
	 * phy calibration commands
	 */
	u8 phy_calib_chain_noise_reset_cmd;
	u8 phy_calib_chain_noise_gain_cmd;

	/* counts reply_tx error */
	struct reply_tx_error_statistics reply_tx_stats;
	struct reply_agg_tx_error_statistics reply_agg_tx_stats;

	/* remain-on-channel offload support */
	struct ieee80211_channel *hw_roc_channel;
	struct delayed_work hw_roc_disable_work;
	enum nl80211_channel_type hw_roc_chantype;
	int hw_roc_duration;
	bool hw_roc_setup, hw_roc_start_notified;

	/* bt coex */
	u8 bt_enable_flag;
	u8 bt_status;
	u8 bt_traffic_load, last_bt_traffic_load;
	bool bt_ch_announce;
	bool bt_full_concurrent;
	bool bt_ant_couple_ok;
	__le32 kill_ack_mask;
	__le32 kill_cts_mask;
	__le16 bt_valid;
	bool reduced_txpower;
	u16 bt_on_thresh;
	u16 bt_duration;
	u16 dynamic_frag_thresh;
	u8 bt_ci_compliance;
	struct work_struct bt_traffic_change_work;
	bool bt_enable_pspoll;
	struct iwl_rxon_context *cur_rssi_ctx;
	bool bt_is_sco;

	struct work_struct restart;
	struct work_struct scan_completed;
	struct work_struct abort_scan;

	struct work_struct beacon_update;
	struct iwl_rxon_context *beacon_ctx;
	struct sk_buff *beacon_skb;
	void *beacon_cmd;

	struct work_struct tt_work;
	struct work_struct ct_enter;
	struct work_struct ct_exit;
	struct work_struct start_internal_scan;
	struct work_struct tx_flush;
	struct work_struct bt_full_concurrency;
	struct work_struct bt_runtime_config;

	struct delayed_work scan_check;

	/* TX Power settings */
	s8 tx_power_user_lmt;
	s8 tx_power_next;

#ifdef CONFIG_IWLWIFI_DEBUGFS
	/* debugfs */
	struct dentry *debugfs_dir;
	u32 dbgfs_sram_offset, dbgfs_sram_len;
	bool disable_ht40;
	void *wowlan_sram;
#endif /* CONFIG_IWLWIFI_DEBUGFS */

	struct iwl_eeprom_data *eeprom_data;
	/* eeprom blob for debugfs/testmode */
	u8 *eeprom_blob;
	size_t eeprom_blob_size;

	struct work_struct txpower_work;
	u32 calib_disabled;
	struct work_struct run_time_calib_work;
	struct timer_list statistics_periodic;
	struct timer_list ucode_trace;

	struct iwl_event_log event_log;

	struct led_classdev led;
	unsigned long blink_on, blink_off;
	bool led_registered;

#ifdef CONFIG_IWLWIFI_DEVICE_TESTMODE
	struct iwl_test tst;
	u32 tm_fixed_rate;
#endif

	/* WoWLAN GTK rekey data */
	u8 kck[NL80211_KCK_LEN], kek[NL80211_KEK_LEN];
	__le64 replay_ctr;
	__le16 last_seq_ctl;
	bool have_rekey_data;

	/* device_pointers: pointers to ucode event tables */
	struct {
		u32 error_event_table;
		u32 log_event_table;
	} device_pointers;

	/* indicator of loaded ucode image */
	enum iwl_ucode_type cur_ucode;
}; /*iwl_priv */

static inline struct iwl_rxon_context *
iwl_rxon_ctx_from_vif(struct ieee80211_vif *vif)
{
	struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;

	return vif_priv->ctx;
}

#define for_each_context(priv, ctx)				\
	for (ctx = &priv->contexts[IWL_RXON_CTX_BSS];		\
	     ctx < &priv->contexts[NUM_IWL_RXON_CTX]; ctx++)	\
		if (priv->valid_contexts & BIT(ctx->ctxid))

static inline int iwl_is_associated_ctx(struct iwl_rxon_context *ctx)
{
	return (ctx->active.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
}

static inline int iwl_is_associated(struct iwl_priv *priv,
				    enum iwl_rxon_context_id ctxid)
{
	return iwl_is_associated_ctx(&priv->contexts[ctxid]);
}

static inline int iwl_is_any_associated(struct iwl_priv *priv)
{
	struct iwl_rxon_context *ctx;
	for_each_context(priv, ctx)
		if (iwl_is_associated_ctx(ctx))
			return true;
	return false;
}

#endif				/* __iwl_dev_h__ */