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1/* SPDX-License-Identifier: GPL-2.0-only */
2/******************************************************************************
3 *
4 * Copyright(c) 2003 - 2014, 2020, 2023 Intel Corporation. All rights reserved.
5 *****************************************************************************/
6/*
7 * Please use this file (dev.h) for driver implementation definitions.
8 * Please use commands.h for uCode API definitions.
9 */
10
11#ifndef __iwl_dev_h__
12#define __iwl_dev_h__
13
14#include <linux/interrupt.h>
15#include <linux/kernel.h>
16#include <linux/wait.h>
17#include <linux/leds.h>
18#include <linux/slab.h>
19#include <linux/mutex.h>
20
21#include "fw/img.h"
22#include "iwl-eeprom-parse.h"
23#include "iwl-csr.h"
24#include "iwl-debug.h"
25#include "iwl-agn-hw.h"
26#include "iwl-op-mode.h"
27#include "fw/notif-wait.h"
28#include "iwl-trans.h"
29
30#include "led.h"
31#include "power.h"
32#include "rs.h"
33#include "tt.h"
34
35/* CT-KILL constants */
36#define CT_KILL_THRESHOLD_LEGACY 110 /* in Celsius */
37#define CT_KILL_THRESHOLD 114 /* in Celsius */
38#define CT_KILL_EXIT_THRESHOLD 95 /* in Celsius */
39
40/* Default noise level to report when noise measurement is not available.
41 * This may be because we're:
42 * 1) Not associated no beacon statistics being sent to driver)
43 * 2) Scanning (noise measurement does not apply to associated channel)
44 * Use default noise value of -127 ... this is below the range of measurable
45 * Rx dBm for all agn devices, so it can indicate "unmeasurable" to user.
46 * Also, -127 works better than 0 when averaging frames with/without
47 * noise info (e.g. averaging might be done in app); measured dBm values are
48 * always negative ... using a negative value as the default keeps all
49 * averages within an s8's (used in some apps) range of negative values. */
50#define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
51
52/*
53 * RTS threshold here is total size [2347] minus 4 FCS bytes
54 * Per spec:
55 * a value of 0 means RTS on all data/management packets
56 * a value > max MSDU size means no RTS
57 * else RTS for data/management frames where MPDU is larger
58 * than RTS value.
59 */
60#define DEFAULT_RTS_THRESHOLD 2347U
61#define MIN_RTS_THRESHOLD 0U
62#define MAX_RTS_THRESHOLD 2347U
63#define MAX_MSDU_SIZE 2304U
64#define MAX_MPDU_SIZE 2346U
65#define DEFAULT_BEACON_INTERVAL 200U
66#define DEFAULT_SHORT_RETRY_LIMIT 7U
67#define DEFAULT_LONG_RETRY_LIMIT 4U
68
69#define IWL_NUM_SCAN_RATES (2)
70
71
72#define IEEE80211_DATA_LEN 2304
73#define IEEE80211_4ADDR_LEN 30
74#define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
75#define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
76
77#define SUP_RATE_11A_MAX_NUM_CHANNELS 8
78#define SUP_RATE_11B_MAX_NUM_CHANNELS 4
79#define SUP_RATE_11G_MAX_NUM_CHANNELS 12
80
81#define IWL_SUPPORTED_RATES_IE_LEN 8
82
83#define IWL_INVALID_RATE 0xFF
84#define IWL_INVALID_VALUE -1
85
86union iwl_ht_rate_supp {
87 u16 rates;
88 struct {
89 u8 siso_rate;
90 u8 mimo_rate;
91 };
92};
93
94struct iwl_ht_config {
95 bool single_chain_sufficient;
96 enum ieee80211_smps_mode smps; /* current smps mode */
97};
98
99/* QoS structures */
100struct iwl_qos_info {
101 int qos_active;
102 struct iwl_qosparam_cmd def_qos_parm;
103};
104
105/**
106 * enum iwl_agg_state
107 *
108 * The state machine of the BA agreement establishment / tear down.
109 * These states relate to a specific RA / TID.
110 *
111 * @IWL_AGG_OFF: aggregation is not used
112 * @IWL_AGG_STARTING: aggregation are starting (between start and oper)
113 * @IWL_AGG_ON: aggregation session is up
114 * @IWL_EMPTYING_HW_QUEUE_ADDBA: establishing a BA session - waiting for the
115 * HW queue to be empty from packets for this RA /TID.
116 * @IWL_EMPTYING_HW_QUEUE_DELBA: tearing down a BA session - waiting for the
117 * HW queue to be empty from packets for this RA /TID.
118 */
119enum iwl_agg_state {
120 IWL_AGG_OFF = 0,
121 IWL_AGG_STARTING,
122 IWL_AGG_ON,
123 IWL_EMPTYING_HW_QUEUE_ADDBA,
124 IWL_EMPTYING_HW_QUEUE_DELBA,
125};
126
127/**
128 * struct iwl_ht_agg - aggregation state machine
129 *
130 * This structs holds the states for the BA agreement establishment and tear
131 * down. It also holds the state during the BA session itself. This struct is
132 * duplicated for each RA / TID.
133 *
134 * @rate_n_flags: Rate at which Tx was attempted. Holds the data between the
135 * Tx response (REPLY_TX), and the block ack notification
136 * (REPLY_COMPRESSED_BA).
137 * @state: state of the BA agreement establishment / tear down.
138 * @txq_id: Tx queue used by the BA session
139 * @ssn: the first packet to be sent in AGG HW queue in Tx AGG start flow, or
140 * the first packet to be sent in legacy HW queue in Tx AGG stop flow.
141 * Basically when next_reclaimed reaches ssn, we can tell mac80211 that
142 * we are ready to finish the Tx AGG stop / start flow.
143 * @wait_for_ba: Expect block-ack before next Tx reply
144 */
145struct iwl_ht_agg {
146 u32 rate_n_flags;
147 enum iwl_agg_state state;
148 u16 txq_id;
149 u16 ssn;
150 bool wait_for_ba;
151};
152
153/**
154 * struct iwl_tid_data - one for each RA / TID
155 *
156 * This structs holds the states for each RA / TID.
157 *
158 * @seq_number: the next WiFi sequence number to use
159 * @next_reclaimed: the WiFi sequence number of the next packet to be acked.
160 * This is basically (last acked packet++).
161 * @agg: aggregation state machine
162 */
163struct iwl_tid_data {
164 u16 seq_number;
165 u16 next_reclaimed;
166 struct iwl_ht_agg agg;
167};
168
169/*
170 * Structure should be accessed with sta_lock held. When station addition
171 * is in progress (IWL_STA_UCODE_INPROGRESS) it is possible to access only
172 * the commands (iwl_addsta_cmd and iwl_link_quality_cmd) without sta_lock
173 * held.
174 */
175struct iwl_station_entry {
176 struct iwl_addsta_cmd sta;
177 u8 used, ctxid;
178 struct iwl_link_quality_cmd *lq;
179};
180
181/*
182 * iwl_station_priv: Driver's private station information
183 *
184 * When mac80211 creates a station it reserves some space (hw->sta_data_size)
185 * in the structure for use by driver. This structure is places in that
186 * space.
187 */
188struct iwl_station_priv {
189 struct iwl_rxon_context *ctx;
190 struct iwl_lq_sta lq_sta;
191 atomic_t pending_frames;
192 bool client;
193 bool asleep;
194 u8 max_agg_bufsize;
195 u8 sta_id;
196};
197
198/*
199 * struct iwl_vif_priv - driver's private per-interface information
200 *
201 * When mac80211 allocates a virtual interface, it can allocate
202 * space for us to put data into.
203 */
204struct iwl_vif_priv {
205 struct iwl_rxon_context *ctx;
206 u8 ibss_bssid_sta_id;
207};
208
209struct iwl_sensitivity_ranges {
210 u16 min_nrg_cck;
211
212 u16 nrg_th_cck;
213 u16 nrg_th_ofdm;
214
215 u16 auto_corr_min_ofdm;
216 u16 auto_corr_min_ofdm_mrc;
217 u16 auto_corr_min_ofdm_x1;
218 u16 auto_corr_min_ofdm_mrc_x1;
219
220 u16 auto_corr_max_ofdm;
221 u16 auto_corr_max_ofdm_mrc;
222 u16 auto_corr_max_ofdm_x1;
223 u16 auto_corr_max_ofdm_mrc_x1;
224
225 u16 auto_corr_max_cck;
226 u16 auto_corr_max_cck_mrc;
227 u16 auto_corr_min_cck;
228 u16 auto_corr_min_cck_mrc;
229
230 u16 barker_corr_th_min;
231 u16 barker_corr_th_min_mrc;
232 u16 nrg_th_cca;
233};
234
235/******************************************************************************
236 *
237 * Functions implemented in core module which are forward declared here
238 * for use by iwl-[4-5].c
239 *
240 * NOTE: The implementation of these functions are not hardware specific
241 * which is why they are in the core module files.
242 *
243 * Naming convention --
244 * iwl_ <-- Is part of iwlwifi
245 * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
246 *
247 ****************************************************************************/
248void iwl_update_chain_flags(struct iwl_priv *priv);
249extern const u8 iwl_bcast_addr[ETH_ALEN];
250
251#define IWL_OPERATION_MODE_AUTO 0
252#define IWL_OPERATION_MODE_HT_ONLY 1
253#define IWL_OPERATION_MODE_MIXED 2
254#define IWL_OPERATION_MODE_20MHZ 3
255
256#define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
257
258/* Sensitivity and chain noise calibration */
259#define INITIALIZATION_VALUE 0xFFFF
260#define IWL_CAL_NUM_BEACONS 16
261#define MAXIMUM_ALLOWED_PATHLOSS 15
262
263#define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
264
265#define MAX_FA_OFDM 50
266#define MIN_FA_OFDM 5
267#define MAX_FA_CCK 50
268#define MIN_FA_CCK 5
269
270#define AUTO_CORR_STEP_OFDM 1
271
272#define AUTO_CORR_STEP_CCK 3
273#define AUTO_CORR_MAX_TH_CCK 160
274
275#define NRG_DIFF 2
276#define NRG_STEP_CCK 2
277#define NRG_MARGIN 8
278#define MAX_NUMBER_CCK_NO_FA 100
279
280#define AUTO_CORR_CCK_MIN_VAL_DEF (125)
281
282#define CHAIN_A 0
283#define CHAIN_B 1
284#define CHAIN_C 2
285#define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
286#define ALL_BAND_FILTER 0xFF00
287#define IN_BAND_FILTER 0xFF
288#define MIN_AVERAGE_NOISE_MAX_VALUE 0xFFFFFFFF
289
290#define NRG_NUM_PREV_STAT_L 20
291#define NUM_RX_CHAINS 3
292
293enum iwlagn_false_alarm_state {
294 IWL_FA_TOO_MANY = 0,
295 IWL_FA_TOO_FEW = 1,
296 IWL_FA_GOOD_RANGE = 2,
297};
298
299enum iwlagn_chain_noise_state {
300 IWL_CHAIN_NOISE_ALIVE = 0, /* must be 0 */
301 IWL_CHAIN_NOISE_ACCUMULATE,
302 IWL_CHAIN_NOISE_CALIBRATED,
303 IWL_CHAIN_NOISE_DONE,
304};
305
306/* Sensitivity calib data */
307struct iwl_sensitivity_data {
308 u32 auto_corr_ofdm;
309 u32 auto_corr_ofdm_mrc;
310 u32 auto_corr_ofdm_x1;
311 u32 auto_corr_ofdm_mrc_x1;
312 u32 auto_corr_cck;
313 u32 auto_corr_cck_mrc;
314
315 u32 last_bad_plcp_cnt_ofdm;
316 u32 last_fa_cnt_ofdm;
317 u32 last_bad_plcp_cnt_cck;
318 u32 last_fa_cnt_cck;
319
320 u32 nrg_curr_state;
321 u32 nrg_prev_state;
322 u32 nrg_value[10];
323 u8 nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
324 u32 nrg_silence_ref;
325 u32 nrg_energy_idx;
326 u32 nrg_silence_idx;
327 u32 nrg_th_cck;
328 s32 nrg_auto_corr_silence_diff;
329 u32 num_in_cck_no_fa;
330 u32 nrg_th_ofdm;
331
332 u16 barker_corr_th_min;
333 u16 barker_corr_th_min_mrc;
334 u16 nrg_th_cca;
335};
336
337/* Chain noise (differential Rx gain) calib data */
338struct iwl_chain_noise_data {
339 u32 active_chains;
340 u32 chain_noise_a;
341 u32 chain_noise_b;
342 u32 chain_noise_c;
343 u32 chain_signal_a;
344 u32 chain_signal_b;
345 u32 chain_signal_c;
346 u16 beacon_count;
347 u8 disconn_array[NUM_RX_CHAINS];
348 u8 delta_gain_code[NUM_RX_CHAINS];
349 u8 radio_write;
350 u8 state;
351};
352
353enum {
354 MEASUREMENT_READY = (1 << 0),
355 MEASUREMENT_ACTIVE = (1 << 1),
356};
357
358/* reply_tx_statistics (for _agn devices) */
359struct reply_tx_error_statistics {
360 u32 pp_delay;
361 u32 pp_few_bytes;
362 u32 pp_bt_prio;
363 u32 pp_quiet_period;
364 u32 pp_calc_ttak;
365 u32 int_crossed_retry;
366 u32 short_limit;
367 u32 long_limit;
368 u32 fifo_underrun;
369 u32 drain_flow;
370 u32 rfkill_flush;
371 u32 life_expire;
372 u32 dest_ps;
373 u32 host_abort;
374 u32 bt_retry;
375 u32 sta_invalid;
376 u32 frag_drop;
377 u32 tid_disable;
378 u32 fifo_flush;
379 u32 insuff_cf_poll;
380 u32 fail_hw_drop;
381 u32 sta_color_mismatch;
382 u32 unknown;
383};
384
385/* reply_agg_tx_statistics (for _agn devices) */
386struct reply_agg_tx_error_statistics {
387 u32 underrun;
388 u32 bt_prio;
389 u32 few_bytes;
390 u32 abort;
391 u32 last_sent_ttl;
392 u32 last_sent_try;
393 u32 last_sent_bt_kill;
394 u32 scd_query;
395 u32 bad_crc32;
396 u32 response;
397 u32 dump_tx;
398 u32 delay_tx;
399 u32 unknown;
400};
401
402/*
403 * schedule the timer to wake up every UCODE_TRACE_PERIOD milliseconds
404 * to perform continuous uCode event logging operation if enabled
405 */
406#define UCODE_TRACE_PERIOD (10)
407
408/*
409 * iwl_event_log: current uCode event log position
410 *
411 * @ucode_trace: enable/disable ucode continuous trace timer
412 * @num_wraps: how many times the event buffer wraps
413 * @next_entry: the entry just before the next one that uCode would fill
414 * @non_wraps_count: counter for no wrap detected when dump ucode events
415 * @wraps_once_count: counter for wrap once detected when dump ucode events
416 * @wraps_more_count: counter for wrap more than once detected
417 * when dump ucode events
418 */
419struct iwl_event_log {
420 bool ucode_trace;
421 u32 num_wraps;
422 u32 next_entry;
423 int non_wraps_count;
424 int wraps_once_count;
425 int wraps_more_count;
426};
427
428#define IWL_DELAY_NEXT_FORCE_RF_RESET (HZ*3)
429
430/* BT Antenna Coupling Threshold (dB) */
431#define IWL_BT_ANTENNA_COUPLING_THRESHOLD (35)
432
433/* Firmware reload counter and Timestamp */
434#define IWL_MIN_RELOAD_DURATION 1000 /* 1000 ms */
435#define IWL_MAX_CONTINUE_RELOAD_CNT 4
436
437
438struct iwl_rf_reset {
439 int reset_request_count;
440 int reset_success_count;
441 int reset_reject_count;
442 unsigned long last_reset_jiffies;
443};
444
445enum iwl_rxon_context_id {
446 IWL_RXON_CTX_BSS,
447 IWL_RXON_CTX_PAN,
448
449 NUM_IWL_RXON_CTX
450};
451
452/* extend beacon time format bit shifting */
453/*
454 * for _agn devices
455 * bits 31:22 - extended
456 * bits 21:0 - interval
457 */
458#define IWLAGN_EXT_BEACON_TIME_POS 22
459
460struct iwl_rxon_context {
461 struct ieee80211_vif *vif;
462
463 u8 mcast_queue;
464 u8 ac_to_queue[IEEE80211_NUM_ACS];
465 u8 ac_to_fifo[IEEE80211_NUM_ACS];
466
467 /*
468 * We could use the vif to indicate active, but we
469 * also need it to be active during disabling when
470 * we already removed the vif for type setting.
471 */
472 bool always_active, is_active;
473
474 bool ht_need_multiple_chains;
475
476 enum iwl_rxon_context_id ctxid;
477
478 u32 interface_modes, exclusive_interface_modes;
479 u8 unused_devtype, ap_devtype, ibss_devtype, station_devtype;
480
481 /*
482 * We declare this const so it can only be
483 * changed via explicit cast within the
484 * routines that actually update the physical
485 * hardware.
486 */
487 const struct iwl_rxon_cmd active;
488 struct iwl_rxon_cmd staging;
489
490 struct iwl_rxon_time_cmd timing;
491
492 struct iwl_qos_info qos_data;
493
494 u8 bcast_sta_id, ap_sta_id;
495
496 u8 rxon_cmd, rxon_assoc_cmd, rxon_timing_cmd;
497 u8 qos_cmd;
498 u8 wep_key_cmd;
499
500 struct iwl_wep_key wep_keys[WEP_KEYS_MAX];
501 u8 key_mapping_keys;
502
503 __le32 station_flags;
504
505 int beacon_int;
506
507 struct {
508 bool non_gf_sta_present;
509 u8 protection;
510 bool enabled, is_40mhz;
511 u8 extension_chan_offset;
512 } ht;
513};
514
515enum iwl_scan_type {
516 IWL_SCAN_NORMAL,
517 IWL_SCAN_RADIO_RESET,
518};
519
520/**
521 * struct iwl_hw_params
522 *
523 * Holds the module parameters
524 *
525 * @tx_chains_num: Number of TX chains
526 * @rx_chains_num: Number of RX chains
527 * @ct_kill_threshold: temperature threshold - in hw dependent unit
528 * @ct_kill_exit_threshold: when to reeable the device - in hw dependent unit
529 * relevant for 1000, 6000 and up
530 * @struct iwl_sensitivity_ranges: range of sensitivity values
531 * @use_rts_for_aggregation: use rts/cts protection for HT traffic
532 * @sens: sensitivity ranges pointer
533 */
534struct iwl_hw_params {
535 u8 tx_chains_num;
536 u8 rx_chains_num;
537 bool use_rts_for_aggregation;
538 u32 ct_kill_threshold;
539 u32 ct_kill_exit_threshold;
540
541 const struct iwl_sensitivity_ranges *sens;
542};
543
544/**
545 * struct iwl_dvm_bt_params - DVM specific BT (coex) parameters
546 * @advanced_bt_coexist: support advanced bt coexist
547 * @bt_init_traffic_load: specify initial bt traffic load
548 * @bt_prio_boost: default bt priority boost value
549 * @agg_time_limit: maximum number of uSec in aggregation
550 * @bt_sco_disable: uCode should not response to BT in SCO/ESCO mode
551 * @bt_session_2: indicates version 2 of the BT command is used
552 */
553struct iwl_dvm_bt_params {
554 bool advanced_bt_coexist;
555 u8 bt_init_traffic_load;
556 u32 bt_prio_boost;
557 u16 agg_time_limit;
558 bool bt_sco_disable;
559 bool bt_session_2;
560};
561
562/**
563 * struct iwl_dvm_cfg - DVM firmware specific device configuration
564 * @set_hw_params: set hardware parameters
565 * @set_channel_switch: send channel switch command
566 * @nic_config: apply device specific configuration
567 * @temperature: read temperature
568 * @adv_thermal_throttle: support advance thermal throttle
569 * @support_ct_kill_exit: support ct kill exit condition
570 * @plcp_delta_threshold: plcp error rate threshold used to trigger
571 * radio tuning when there is a high receiving plcp error rate
572 * @chain_noise_scale: default chain noise scale used for gain computation
573 * @hd_v2: v2 of enhanced sensitivity value, used for 2000 series and up
574 * @no_idle_support: do not support idle mode
575 * @bt_params: pointer to BT parameters
576 * @need_temp_offset_calib: need to perform temperature offset calibration
577 * @no_xtal_calib: some devices do not need crystal calibration data,
578 * don't send it to those
579 * @temp_offset_v2: support v2 of temperature offset calibration
580 * @adv_pm: advanced power management
581 */
582struct iwl_dvm_cfg {
583 void (*set_hw_params)(struct iwl_priv *priv);
584 int (*set_channel_switch)(struct iwl_priv *priv,
585 struct ieee80211_channel_switch *ch_switch);
586 void (*nic_config)(struct iwl_priv *priv);
587 void (*temperature)(struct iwl_priv *priv);
588
589 const struct iwl_dvm_bt_params *bt_params;
590 s32 chain_noise_scale;
591 u8 plcp_delta_threshold;
592 bool adv_thermal_throttle;
593 bool support_ct_kill_exit;
594 bool hd_v2;
595 bool no_idle_support;
596 bool need_temp_offset_calib;
597 bool no_xtal_calib;
598 bool temp_offset_v2;
599 bool adv_pm;
600};
601
602struct iwl_wipan_noa_data {
603 struct rcu_head rcu_head;
604 u32 length;
605 u8 data[];
606};
607
608/* Calibration disabling bit mask */
609enum {
610 IWL_CALIB_ENABLE_ALL = 0,
611
612 IWL_SENSITIVITY_CALIB_DISABLED = BIT(0),
613 IWL_CHAIN_NOISE_CALIB_DISABLED = BIT(1),
614 IWL_TX_POWER_CALIB_DISABLED = BIT(2),
615
616 IWL_CALIB_DISABLE_ALL = 0xFFFFFFFF,
617};
618
619#define IWL_OP_MODE_GET_DVM(_iwl_op_mode) \
620 ((struct iwl_priv *) ((_iwl_op_mode)->op_mode_specific))
621
622#define IWL_MAC80211_GET_DVM(_hw) \
623 ((struct iwl_priv *) ((struct iwl_op_mode *) \
624 (_hw)->priv)->op_mode_specific)
625
626struct iwl_priv {
627
628 struct iwl_trans *trans;
629 struct device *dev; /* for debug prints only */
630 const struct iwl_cfg *cfg;
631 const struct iwl_fw *fw;
632 const struct iwl_dvm_cfg *lib;
633 unsigned long status;
634
635 spinlock_t sta_lock;
636 struct mutex mutex;
637
638 unsigned long transport_queue_stop;
639 bool passive_no_rx;
640#define IWL_INVALID_MAC80211_QUEUE 0xff
641 u8 queue_to_mac80211[IWL_MAX_HW_QUEUES];
642 atomic_t queue_stop_count[IWL_MAX_HW_QUEUES];
643
644 unsigned long agg_q_alloc[BITS_TO_LONGS(IWL_MAX_HW_QUEUES)];
645
646 /* ieee device used by generic ieee processing code */
647 struct ieee80211_hw *hw;
648
649 struct napi_struct *napi;
650
651 struct list_head calib_results;
652
653 struct workqueue_struct *workqueue;
654
655 struct iwl_hw_params hw_params;
656
657 enum nl80211_band band;
658 u8 valid_contexts;
659
660 void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
661 struct iwl_rx_cmd_buffer *rxb);
662
663 struct iwl_notif_wait_data notif_wait;
664
665 /* spectrum measurement report caching */
666 struct iwl_spectrum_notification measure_report;
667 u8 measurement_status;
668
669 /* ucode beacon time */
670 u32 ucode_beacon_time;
671 int missed_beacon_threshold;
672
673 /* track IBSS manager (last beacon) status */
674 u32 ibss_manager;
675
676 /* jiffies when last recovery from statistics was performed */
677 unsigned long rx_statistics_jiffies;
678
679 /*counters */
680 u32 rx_handlers_stats[REPLY_MAX];
681
682 /* rf reset */
683 struct iwl_rf_reset rf_reset;
684
685 /* firmware reload counter and timestamp */
686 unsigned long reload_jiffies;
687 int reload_count;
688 bool ucode_loaded;
689
690 u8 plcp_delta_threshold;
691
692 /* thermal calibration */
693 s32 temperature; /* Celsius */
694 s32 last_temperature;
695
696 struct iwl_wipan_noa_data __rcu *noa_data;
697
698 /* Scan related variables */
699 unsigned long scan_start;
700 unsigned long scan_start_tsf;
701 size_t scan_cmd_size;
702 void *scan_cmd;
703 enum nl80211_band scan_band;
704 struct cfg80211_scan_request *scan_request;
705 struct ieee80211_vif *scan_vif;
706 enum iwl_scan_type scan_type;
707 u8 scan_tx_ant[NUM_NL80211_BANDS];
708 u8 mgmt_tx_ant;
709
710 /* max number of station keys */
711 u8 sta_key_max_num;
712
713 bool new_scan_threshold_behaviour;
714
715 bool wowlan;
716
717 /* EEPROM MAC addresses */
718 struct mac_address addresses[2];
719
720 struct iwl_rxon_context contexts[NUM_IWL_RXON_CTX];
721
722 __le16 switch_channel;
723
724 u8 start_calib;
725 struct iwl_sensitivity_data sensitivity_data;
726 struct iwl_chain_noise_data chain_noise_data;
727 __le16 sensitivity_tbl[HD_TABLE_SIZE];
728 __le16 enhance_sensitivity_tbl[ENHANCE_HD_TABLE_ENTRIES];
729
730 struct iwl_ht_config current_ht_config;
731
732 /* Rate scaling data */
733 u8 retry_rate;
734
735 int activity_timer_active;
736
737 struct iwl_power_mgr power_data;
738 struct iwl_tt_mgmt thermal_throttle;
739
740 /* station table variables */
741 int num_stations;
742 struct iwl_station_entry stations[IWLAGN_STATION_COUNT];
743 unsigned long ucode_key_table;
744 struct iwl_tid_data tid_data[IWLAGN_STATION_COUNT][IWL_MAX_TID_COUNT];
745 atomic_t num_aux_in_flight;
746
747 u8 mac80211_registered;
748
749 /* Indication if ieee80211_ops->open has been called */
750 u8 is_open;
751
752 enum nl80211_iftype iw_mode;
753
754 /* Last Rx'd beacon timestamp */
755 u64 timestamp;
756
757 struct {
758 __le32 flag;
759 struct statistics_general_common common;
760 struct statistics_rx_non_phy rx_non_phy;
761 struct statistics_rx_phy rx_ofdm;
762 struct statistics_rx_ht_phy rx_ofdm_ht;
763 struct statistics_rx_phy rx_cck;
764 struct statistics_tx tx;
765#ifdef CONFIG_IWLWIFI_DEBUGFS
766 struct statistics_bt_activity bt_activity;
767 __le32 num_bt_kills, accum_num_bt_kills;
768#endif
769 spinlock_t lock;
770 } statistics;
771#ifdef CONFIG_IWLWIFI_DEBUGFS
772 struct {
773 struct statistics_general_common common;
774 struct statistics_rx_non_phy rx_non_phy;
775 struct statistics_rx_phy rx_ofdm;
776 struct statistics_rx_ht_phy rx_ofdm_ht;
777 struct statistics_rx_phy rx_cck;
778 struct statistics_tx tx;
779 struct statistics_bt_activity bt_activity;
780 } accum_stats, delta_stats, max_delta_stats;
781#endif
782
783 /*
784 * reporting the number of tids has AGG on. 0 means
785 * no AGGREGATION
786 */
787 u8 agg_tids_count;
788
789 struct iwl_rx_phy_res last_phy_res;
790 u32 ampdu_ref;
791 bool last_phy_res_valid;
792
793 /*
794 * chain noise reset and gain commands are the
795 * two extra calibration commands follows the standard
796 * phy calibration commands
797 */
798 u8 phy_calib_chain_noise_reset_cmd;
799 u8 phy_calib_chain_noise_gain_cmd;
800
801 /* counts reply_tx error */
802 struct reply_tx_error_statistics reply_tx_stats;
803 struct reply_agg_tx_error_statistics reply_agg_tx_stats;
804
805 /* bt coex */
806 u8 bt_enable_flag;
807 u8 bt_status;
808 u8 bt_traffic_load, last_bt_traffic_load;
809 bool bt_ch_announce;
810 bool bt_full_concurrent;
811 __le32 kill_ack_mask;
812 __le32 kill_cts_mask;
813 __le16 bt_valid;
814 bool reduced_txpower;
815 u16 bt_on_thresh;
816 u16 bt_duration;
817 u16 dynamic_frag_thresh;
818 u8 bt_ci_compliance;
819 struct work_struct bt_traffic_change_work;
820 bool bt_enable_pspoll;
821 struct iwl_rxon_context *cur_rssi_ctx;
822 bool bt_is_sco;
823
824 struct work_struct restart;
825 struct work_struct scan_completed;
826 struct work_struct abort_scan;
827
828 struct work_struct beacon_update;
829 struct iwl_rxon_context *beacon_ctx;
830 struct sk_buff *beacon_skb;
831 void *beacon_cmd;
832
833 struct work_struct tt_work;
834 struct work_struct ct_enter;
835 struct work_struct ct_exit;
836 struct work_struct start_internal_scan;
837 struct work_struct tx_flush;
838 struct work_struct bt_full_concurrency;
839 struct work_struct bt_runtime_config;
840
841 struct delayed_work scan_check;
842
843 /* TX Power settings */
844 s8 tx_power_user_lmt;
845 s8 tx_power_next;
846
847#ifdef CONFIG_IWLWIFI_DEBUGFS
848 /* debugfs */
849 struct dentry *debugfs_dir;
850 u32 dbgfs_sram_offset, dbgfs_sram_len;
851 bool disable_ht40;
852 void *wowlan_sram;
853#endif /* CONFIG_IWLWIFI_DEBUGFS */
854
855 struct iwl_nvm_data *nvm_data;
856 /* eeprom blob for debugfs */
857 u8 *eeprom_blob;
858 size_t eeprom_blob_size;
859
860 struct work_struct txpower_work;
861 u32 calib_disabled;
862 struct work_struct run_time_calib_work;
863 struct timer_list statistics_periodic;
864 struct timer_list ucode_trace;
865
866 struct iwl_event_log event_log;
867
868#ifdef CONFIG_IWLWIFI_LEDS
869 struct led_classdev led;
870 unsigned long blink_on, blink_off;
871 bool led_registered;
872#endif
873
874 /* WoWLAN GTK rekey data */
875 u8 kck[NL80211_KCK_LEN], kek[NL80211_KEK_LEN];
876 __le64 replay_ctr;
877 __le16 last_seq_ctl;
878 bool have_rekey_data;
879#ifdef CONFIG_PM_SLEEP
880 struct wiphy_wowlan_support wowlan_support;
881#endif
882
883 /* device_pointers: pointers to ucode event tables */
884 struct {
885 u32 error_event_table;
886 u32 log_event_table;
887 } device_pointers;
888
889 /* indicator of loaded ucode image */
890 enum iwl_ucode_type cur_ucode;
891}; /*iwl_priv */
892
893static inline struct iwl_rxon_context *
894iwl_rxon_ctx_from_vif(struct ieee80211_vif *vif)
895{
896 struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
897
898 return vif_priv->ctx;
899}
900
901#define for_each_context(priv, ctx) \
902 for (ctx = &priv->contexts[IWL_RXON_CTX_BSS]; \
903 ctx < &priv->contexts[NUM_IWL_RXON_CTX]; ctx++) \
904 if (priv->valid_contexts & BIT(ctx->ctxid))
905
906static inline int iwl_is_associated_ctx(struct iwl_rxon_context *ctx)
907{
908 return (ctx->active.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
909}
910
911static inline int iwl_is_associated(struct iwl_priv *priv,
912 enum iwl_rxon_context_id ctxid)
913{
914 return iwl_is_associated_ctx(&priv->contexts[ctxid]);
915}
916
917static inline int iwl_is_any_associated(struct iwl_priv *priv)
918{
919 struct iwl_rxon_context *ctx;
920 for_each_context(priv, ctx)
921 if (iwl_is_associated_ctx(ctx))
922 return true;
923 return false;
924}
925
926#endif /* __iwl_dev_h__ */
1/* SPDX-License-Identifier: GPL-2.0-only */
2/******************************************************************************
3 *
4 * Copyright(c) 2003 - 2014, 2020 Intel Corporation. All rights reserved.
5 *
6 * Contact Information:
7 * Intel Linux Wireless <linuxwifi@intel.com>
8 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
9 *
10 *****************************************************************************/
11/*
12 * Please use this file (dev.h) for driver implementation definitions.
13 * Please use commands.h for uCode API definitions.
14 */
15
16#ifndef __iwl_dev_h__
17#define __iwl_dev_h__
18
19#include <linux/interrupt.h>
20#include <linux/kernel.h>
21#include <linux/wait.h>
22#include <linux/leds.h>
23#include <linux/slab.h>
24#include <linux/mutex.h>
25
26#include "fw/img.h"
27#include "iwl-eeprom-parse.h"
28#include "iwl-csr.h"
29#include "iwl-debug.h"
30#include "iwl-agn-hw.h"
31#include "iwl-op-mode.h"
32#include "fw/notif-wait.h"
33#include "iwl-trans.h"
34
35#include "led.h"
36#include "power.h"
37#include "rs.h"
38#include "tt.h"
39
40/* CT-KILL constants */
41#define CT_KILL_THRESHOLD_LEGACY 110 /* in Celsius */
42#define CT_KILL_THRESHOLD 114 /* in Celsius */
43#define CT_KILL_EXIT_THRESHOLD 95 /* in Celsius */
44
45/* Default noise level to report when noise measurement is not available.
46 * This may be because we're:
47 * 1) Not associated no beacon statistics being sent to driver)
48 * 2) Scanning (noise measurement does not apply to associated channel)
49 * Use default noise value of -127 ... this is below the range of measurable
50 * Rx dBm for all agn devices, so it can indicate "unmeasurable" to user.
51 * Also, -127 works better than 0 when averaging frames with/without
52 * noise info (e.g. averaging might be done in app); measured dBm values are
53 * always negative ... using a negative value as the default keeps all
54 * averages within an s8's (used in some apps) range of negative values. */
55#define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
56
57/*
58 * RTS threshold here is total size [2347] minus 4 FCS bytes
59 * Per spec:
60 * a value of 0 means RTS on all data/management packets
61 * a value > max MSDU size means no RTS
62 * else RTS for data/management frames where MPDU is larger
63 * than RTS value.
64 */
65#define DEFAULT_RTS_THRESHOLD 2347U
66#define MIN_RTS_THRESHOLD 0U
67#define MAX_RTS_THRESHOLD 2347U
68#define MAX_MSDU_SIZE 2304U
69#define MAX_MPDU_SIZE 2346U
70#define DEFAULT_BEACON_INTERVAL 200U
71#define DEFAULT_SHORT_RETRY_LIMIT 7U
72#define DEFAULT_LONG_RETRY_LIMIT 4U
73
74#define IWL_NUM_SCAN_RATES (2)
75
76
77#define IEEE80211_DATA_LEN 2304
78#define IEEE80211_4ADDR_LEN 30
79#define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
80#define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
81
82#define SUP_RATE_11A_MAX_NUM_CHANNELS 8
83#define SUP_RATE_11B_MAX_NUM_CHANNELS 4
84#define SUP_RATE_11G_MAX_NUM_CHANNELS 12
85
86#define IWL_SUPPORTED_RATES_IE_LEN 8
87
88#define IWL_INVALID_RATE 0xFF
89#define IWL_INVALID_VALUE -1
90
91union iwl_ht_rate_supp {
92 u16 rates;
93 struct {
94 u8 siso_rate;
95 u8 mimo_rate;
96 };
97};
98
99struct iwl_ht_config {
100 bool single_chain_sufficient;
101 enum ieee80211_smps_mode smps; /* current smps mode */
102};
103
104/* QoS structures */
105struct iwl_qos_info {
106 int qos_active;
107 struct iwl_qosparam_cmd def_qos_parm;
108};
109
110/**
111 * enum iwl_agg_state
112 *
113 * The state machine of the BA agreement establishment / tear down.
114 * These states relate to a specific RA / TID.
115 *
116 * @IWL_AGG_OFF: aggregation is not used
117 * @IWL_AGG_STARTING: aggregation are starting (between start and oper)
118 * @IWL_AGG_ON: aggregation session is up
119 * @IWL_EMPTYING_HW_QUEUE_ADDBA: establishing a BA session - waiting for the
120 * HW queue to be empty from packets for this RA /TID.
121 * @IWL_EMPTYING_HW_QUEUE_DELBA: tearing down a BA session - waiting for the
122 * HW queue to be empty from packets for this RA /TID.
123 */
124enum iwl_agg_state {
125 IWL_AGG_OFF = 0,
126 IWL_AGG_STARTING,
127 IWL_AGG_ON,
128 IWL_EMPTYING_HW_QUEUE_ADDBA,
129 IWL_EMPTYING_HW_QUEUE_DELBA,
130};
131
132/**
133 * struct iwl_ht_agg - aggregation state machine
134
135 * This structs holds the states for the BA agreement establishment and tear
136 * down. It also holds the state during the BA session itself. This struct is
137 * duplicated for each RA / TID.
138
139 * @rate_n_flags: Rate at which Tx was attempted. Holds the data between the
140 * Tx response (REPLY_TX), and the block ack notification
141 * (REPLY_COMPRESSED_BA).
142 * @state: state of the BA agreement establishment / tear down.
143 * @txq_id: Tx queue used by the BA session
144 * @ssn: the first packet to be sent in AGG HW queue in Tx AGG start flow, or
145 * the first packet to be sent in legacy HW queue in Tx AGG stop flow.
146 * Basically when next_reclaimed reaches ssn, we can tell mac80211 that
147 * we are ready to finish the Tx AGG stop / start flow.
148 * @wait_for_ba: Expect block-ack before next Tx reply
149 */
150struct iwl_ht_agg {
151 u32 rate_n_flags;
152 enum iwl_agg_state state;
153 u16 txq_id;
154 u16 ssn;
155 bool wait_for_ba;
156};
157
158/**
159 * struct iwl_tid_data - one for each RA / TID
160
161 * This structs holds the states for each RA / TID.
162
163 * @seq_number: the next WiFi sequence number to use
164 * @next_reclaimed: the WiFi sequence number of the next packet to be acked.
165 * This is basically (last acked packet++).
166 * @agg: aggregation state machine
167 */
168struct iwl_tid_data {
169 u16 seq_number;
170 u16 next_reclaimed;
171 struct iwl_ht_agg agg;
172};
173
174/*
175 * Structure should be accessed with sta_lock held. When station addition
176 * is in progress (IWL_STA_UCODE_INPROGRESS) it is possible to access only
177 * the commands (iwl_addsta_cmd and iwl_link_quality_cmd) without sta_lock
178 * held.
179 */
180struct iwl_station_entry {
181 struct iwl_addsta_cmd sta;
182 u8 used, ctxid;
183 struct iwl_link_quality_cmd *lq;
184};
185
186/*
187 * iwl_station_priv: Driver's private station information
188 *
189 * When mac80211 creates a station it reserves some space (hw->sta_data_size)
190 * in the structure for use by driver. This structure is places in that
191 * space.
192 */
193struct iwl_station_priv {
194 struct iwl_rxon_context *ctx;
195 struct iwl_lq_sta lq_sta;
196 atomic_t pending_frames;
197 bool client;
198 bool asleep;
199 u8 max_agg_bufsize;
200 u8 sta_id;
201};
202
203/**
204 * struct iwl_vif_priv - driver's private per-interface information
205 *
206 * When mac80211 allocates a virtual interface, it can allocate
207 * space for us to put data into.
208 */
209struct iwl_vif_priv {
210 struct iwl_rxon_context *ctx;
211 u8 ibss_bssid_sta_id;
212};
213
214struct iwl_sensitivity_ranges {
215 u16 min_nrg_cck;
216
217 u16 nrg_th_cck;
218 u16 nrg_th_ofdm;
219
220 u16 auto_corr_min_ofdm;
221 u16 auto_corr_min_ofdm_mrc;
222 u16 auto_corr_min_ofdm_x1;
223 u16 auto_corr_min_ofdm_mrc_x1;
224
225 u16 auto_corr_max_ofdm;
226 u16 auto_corr_max_ofdm_mrc;
227 u16 auto_corr_max_ofdm_x1;
228 u16 auto_corr_max_ofdm_mrc_x1;
229
230 u16 auto_corr_max_cck;
231 u16 auto_corr_max_cck_mrc;
232 u16 auto_corr_min_cck;
233 u16 auto_corr_min_cck_mrc;
234
235 u16 barker_corr_th_min;
236 u16 barker_corr_th_min_mrc;
237 u16 nrg_th_cca;
238};
239
240/******************************************************************************
241 *
242 * Functions implemented in core module which are forward declared here
243 * for use by iwl-[4-5].c
244 *
245 * NOTE: The implementation of these functions are not hardware specific
246 * which is why they are in the core module files.
247 *
248 * Naming convention --
249 * iwl_ <-- Is part of iwlwifi
250 * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
251 *
252 ****************************************************************************/
253void iwl_update_chain_flags(struct iwl_priv *priv);
254extern const u8 iwl_bcast_addr[ETH_ALEN];
255
256#define IWL_OPERATION_MODE_AUTO 0
257#define IWL_OPERATION_MODE_HT_ONLY 1
258#define IWL_OPERATION_MODE_MIXED 2
259#define IWL_OPERATION_MODE_20MHZ 3
260
261#define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
262
263/* Sensitivity and chain noise calibration */
264#define INITIALIZATION_VALUE 0xFFFF
265#define IWL_CAL_NUM_BEACONS 16
266#define MAXIMUM_ALLOWED_PATHLOSS 15
267
268#define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
269
270#define MAX_FA_OFDM 50
271#define MIN_FA_OFDM 5
272#define MAX_FA_CCK 50
273#define MIN_FA_CCK 5
274
275#define AUTO_CORR_STEP_OFDM 1
276
277#define AUTO_CORR_STEP_CCK 3
278#define AUTO_CORR_MAX_TH_CCK 160
279
280#define NRG_DIFF 2
281#define NRG_STEP_CCK 2
282#define NRG_MARGIN 8
283#define MAX_NUMBER_CCK_NO_FA 100
284
285#define AUTO_CORR_CCK_MIN_VAL_DEF (125)
286
287#define CHAIN_A 0
288#define CHAIN_B 1
289#define CHAIN_C 2
290#define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
291#define ALL_BAND_FILTER 0xFF00
292#define IN_BAND_FILTER 0xFF
293#define MIN_AVERAGE_NOISE_MAX_VALUE 0xFFFFFFFF
294
295#define NRG_NUM_PREV_STAT_L 20
296#define NUM_RX_CHAINS 3
297
298enum iwlagn_false_alarm_state {
299 IWL_FA_TOO_MANY = 0,
300 IWL_FA_TOO_FEW = 1,
301 IWL_FA_GOOD_RANGE = 2,
302};
303
304enum iwlagn_chain_noise_state {
305 IWL_CHAIN_NOISE_ALIVE = 0, /* must be 0 */
306 IWL_CHAIN_NOISE_ACCUMULATE,
307 IWL_CHAIN_NOISE_CALIBRATED,
308 IWL_CHAIN_NOISE_DONE,
309};
310
311/* Sensitivity calib data */
312struct iwl_sensitivity_data {
313 u32 auto_corr_ofdm;
314 u32 auto_corr_ofdm_mrc;
315 u32 auto_corr_ofdm_x1;
316 u32 auto_corr_ofdm_mrc_x1;
317 u32 auto_corr_cck;
318 u32 auto_corr_cck_mrc;
319
320 u32 last_bad_plcp_cnt_ofdm;
321 u32 last_fa_cnt_ofdm;
322 u32 last_bad_plcp_cnt_cck;
323 u32 last_fa_cnt_cck;
324
325 u32 nrg_curr_state;
326 u32 nrg_prev_state;
327 u32 nrg_value[10];
328 u8 nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
329 u32 nrg_silence_ref;
330 u32 nrg_energy_idx;
331 u32 nrg_silence_idx;
332 u32 nrg_th_cck;
333 s32 nrg_auto_corr_silence_diff;
334 u32 num_in_cck_no_fa;
335 u32 nrg_th_ofdm;
336
337 u16 barker_corr_th_min;
338 u16 barker_corr_th_min_mrc;
339 u16 nrg_th_cca;
340};
341
342/* Chain noise (differential Rx gain) calib data */
343struct iwl_chain_noise_data {
344 u32 active_chains;
345 u32 chain_noise_a;
346 u32 chain_noise_b;
347 u32 chain_noise_c;
348 u32 chain_signal_a;
349 u32 chain_signal_b;
350 u32 chain_signal_c;
351 u16 beacon_count;
352 u8 disconn_array[NUM_RX_CHAINS];
353 u8 delta_gain_code[NUM_RX_CHAINS];
354 u8 radio_write;
355 u8 state;
356};
357
358enum {
359 MEASUREMENT_READY = (1 << 0),
360 MEASUREMENT_ACTIVE = (1 << 1),
361};
362
363/* reply_tx_statistics (for _agn devices) */
364struct reply_tx_error_statistics {
365 u32 pp_delay;
366 u32 pp_few_bytes;
367 u32 pp_bt_prio;
368 u32 pp_quiet_period;
369 u32 pp_calc_ttak;
370 u32 int_crossed_retry;
371 u32 short_limit;
372 u32 long_limit;
373 u32 fifo_underrun;
374 u32 drain_flow;
375 u32 rfkill_flush;
376 u32 life_expire;
377 u32 dest_ps;
378 u32 host_abort;
379 u32 bt_retry;
380 u32 sta_invalid;
381 u32 frag_drop;
382 u32 tid_disable;
383 u32 fifo_flush;
384 u32 insuff_cf_poll;
385 u32 fail_hw_drop;
386 u32 sta_color_mismatch;
387 u32 unknown;
388};
389
390/* reply_agg_tx_statistics (for _agn devices) */
391struct reply_agg_tx_error_statistics {
392 u32 underrun;
393 u32 bt_prio;
394 u32 few_bytes;
395 u32 abort;
396 u32 last_sent_ttl;
397 u32 last_sent_try;
398 u32 last_sent_bt_kill;
399 u32 scd_query;
400 u32 bad_crc32;
401 u32 response;
402 u32 dump_tx;
403 u32 delay_tx;
404 u32 unknown;
405};
406
407/*
408 * schedule the timer to wake up every UCODE_TRACE_PERIOD milliseconds
409 * to perform continuous uCode event logging operation if enabled
410 */
411#define UCODE_TRACE_PERIOD (10)
412
413/*
414 * iwl_event_log: current uCode event log position
415 *
416 * @ucode_trace: enable/disable ucode continuous trace timer
417 * @num_wraps: how many times the event buffer wraps
418 * @next_entry: the entry just before the next one that uCode would fill
419 * @non_wraps_count: counter for no wrap detected when dump ucode events
420 * @wraps_once_count: counter for wrap once detected when dump ucode events
421 * @wraps_more_count: counter for wrap more than once detected
422 * when dump ucode events
423 */
424struct iwl_event_log {
425 bool ucode_trace;
426 u32 num_wraps;
427 u32 next_entry;
428 int non_wraps_count;
429 int wraps_once_count;
430 int wraps_more_count;
431};
432
433#define IWL_DELAY_NEXT_FORCE_RF_RESET (HZ*3)
434
435/* BT Antenna Coupling Threshold (dB) */
436#define IWL_BT_ANTENNA_COUPLING_THRESHOLD (35)
437
438/* Firmware reload counter and Timestamp */
439#define IWL_MIN_RELOAD_DURATION 1000 /* 1000 ms */
440#define IWL_MAX_CONTINUE_RELOAD_CNT 4
441
442
443struct iwl_rf_reset {
444 int reset_request_count;
445 int reset_success_count;
446 int reset_reject_count;
447 unsigned long last_reset_jiffies;
448};
449
450enum iwl_rxon_context_id {
451 IWL_RXON_CTX_BSS,
452 IWL_RXON_CTX_PAN,
453
454 NUM_IWL_RXON_CTX
455};
456
457/* extend beacon time format bit shifting */
458/*
459 * for _agn devices
460 * bits 31:22 - extended
461 * bits 21:0 - interval
462 */
463#define IWLAGN_EXT_BEACON_TIME_POS 22
464
465struct iwl_rxon_context {
466 struct ieee80211_vif *vif;
467
468 u8 mcast_queue;
469 u8 ac_to_queue[IEEE80211_NUM_ACS];
470 u8 ac_to_fifo[IEEE80211_NUM_ACS];
471
472 /*
473 * We could use the vif to indicate active, but we
474 * also need it to be active during disabling when
475 * we already removed the vif for type setting.
476 */
477 bool always_active, is_active;
478
479 bool ht_need_multiple_chains;
480
481 enum iwl_rxon_context_id ctxid;
482
483 u32 interface_modes, exclusive_interface_modes;
484 u8 unused_devtype, ap_devtype, ibss_devtype, station_devtype;
485
486 /*
487 * We declare this const so it can only be
488 * changed via explicit cast within the
489 * routines that actually update the physical
490 * hardware.
491 */
492 const struct iwl_rxon_cmd active;
493 struct iwl_rxon_cmd staging;
494
495 struct iwl_rxon_time_cmd timing;
496
497 struct iwl_qos_info qos_data;
498
499 u8 bcast_sta_id, ap_sta_id;
500
501 u8 rxon_cmd, rxon_assoc_cmd, rxon_timing_cmd;
502 u8 qos_cmd;
503 u8 wep_key_cmd;
504
505 struct iwl_wep_key wep_keys[WEP_KEYS_MAX];
506 u8 key_mapping_keys;
507
508 __le32 station_flags;
509
510 int beacon_int;
511
512 struct {
513 bool non_gf_sta_present;
514 u8 protection;
515 bool enabled, is_40mhz;
516 u8 extension_chan_offset;
517 } ht;
518};
519
520enum iwl_scan_type {
521 IWL_SCAN_NORMAL,
522 IWL_SCAN_RADIO_RESET,
523};
524
525/**
526 * struct iwl_hw_params
527 *
528 * Holds the module parameters
529 *
530 * @tx_chains_num: Number of TX chains
531 * @rx_chains_num: Number of RX chains
532 * @ct_kill_threshold: temperature threshold - in hw dependent unit
533 * @ct_kill_exit_threshold: when to reeable the device - in hw dependent unit
534 * relevant for 1000, 6000 and up
535 * @struct iwl_sensitivity_ranges: range of sensitivity values
536 * @use_rts_for_aggregation: use rts/cts protection for HT traffic
537 */
538struct iwl_hw_params {
539 u8 tx_chains_num;
540 u8 rx_chains_num;
541 bool use_rts_for_aggregation;
542 u32 ct_kill_threshold;
543 u32 ct_kill_exit_threshold;
544
545 const struct iwl_sensitivity_ranges *sens;
546};
547
548/**
549 * struct iwl_dvm_bt_params - DVM specific BT (coex) parameters
550 * @advanced_bt_coexist: support advanced bt coexist
551 * @bt_init_traffic_load: specify initial bt traffic load
552 * @bt_prio_boost: default bt priority boost value
553 * @agg_time_limit: maximum number of uSec in aggregation
554 * @bt_sco_disable: uCode should not response to BT in SCO/ESCO mode
555 */
556struct iwl_dvm_bt_params {
557 bool advanced_bt_coexist;
558 u8 bt_init_traffic_load;
559 u32 bt_prio_boost;
560 u16 agg_time_limit;
561 bool bt_sco_disable;
562 bool bt_session_2;
563};
564
565/**
566 * struct iwl_dvm_cfg - DVM firmware specific device configuration
567 * @set_hw_params: set hardware parameters
568 * @set_channel_switch: send channel switch command
569 * @nic_config: apply device specific configuration
570 * @temperature: read temperature
571 * @adv_thermal_throttle: support advance thermal throttle
572 * @support_ct_kill_exit: support ct kill exit condition
573 * @plcp_delta_threshold: plcp error rate threshold used to trigger
574 * radio tuning when there is a high receiving plcp error rate
575 * @chain_noise_scale: default chain noise scale used for gain computation
576 * @hd_v2: v2 of enhanced sensitivity value, used for 2000 series and up
577 * @no_idle_support: do not support idle mode
578 * @bt_params: pointer to BT parameters
579 * @need_temp_offset_calib: need to perform temperature offset calibration
580 * @no_xtal_calib: some devices do not need crystal calibration data,
581 * don't send it to those
582 * @temp_offset_v2: support v2 of temperature offset calibration
583 * @adv_pm: advanced power management
584 */
585struct iwl_dvm_cfg {
586 void (*set_hw_params)(struct iwl_priv *priv);
587 int (*set_channel_switch)(struct iwl_priv *priv,
588 struct ieee80211_channel_switch *ch_switch);
589 void (*nic_config)(struct iwl_priv *priv);
590 void (*temperature)(struct iwl_priv *priv);
591
592 const struct iwl_dvm_bt_params *bt_params;
593 s32 chain_noise_scale;
594 u8 plcp_delta_threshold;
595 bool adv_thermal_throttle;
596 bool support_ct_kill_exit;
597 bool hd_v2;
598 bool no_idle_support;
599 bool need_temp_offset_calib;
600 bool no_xtal_calib;
601 bool temp_offset_v2;
602 bool adv_pm;
603};
604
605struct iwl_wipan_noa_data {
606 struct rcu_head rcu_head;
607 u32 length;
608 u8 data[];
609};
610
611/* Calibration disabling bit mask */
612enum {
613 IWL_CALIB_ENABLE_ALL = 0,
614
615 IWL_SENSITIVITY_CALIB_DISABLED = BIT(0),
616 IWL_CHAIN_NOISE_CALIB_DISABLED = BIT(1),
617 IWL_TX_POWER_CALIB_DISABLED = BIT(2),
618
619 IWL_CALIB_DISABLE_ALL = 0xFFFFFFFF,
620};
621
622#define IWL_OP_MODE_GET_DVM(_iwl_op_mode) \
623 ((struct iwl_priv *) ((_iwl_op_mode)->op_mode_specific))
624
625#define IWL_MAC80211_GET_DVM(_hw) \
626 ((struct iwl_priv *) ((struct iwl_op_mode *) \
627 (_hw)->priv)->op_mode_specific)
628
629struct iwl_priv {
630
631 struct iwl_trans *trans;
632 struct device *dev; /* for debug prints only */
633 const struct iwl_cfg *cfg;
634 const struct iwl_fw *fw;
635 const struct iwl_dvm_cfg *lib;
636 unsigned long status;
637
638 spinlock_t sta_lock;
639 struct mutex mutex;
640
641 unsigned long transport_queue_stop;
642 bool passive_no_rx;
643#define IWL_INVALID_MAC80211_QUEUE 0xff
644 u8 queue_to_mac80211[IWL_MAX_HW_QUEUES];
645 atomic_t queue_stop_count[IWL_MAX_HW_QUEUES];
646
647 unsigned long agg_q_alloc[BITS_TO_LONGS(IWL_MAX_HW_QUEUES)];
648
649 /* ieee device used by generic ieee processing code */
650 struct ieee80211_hw *hw;
651
652 struct napi_struct *napi;
653
654 struct list_head calib_results;
655
656 struct workqueue_struct *workqueue;
657
658 struct iwl_hw_params hw_params;
659
660 enum nl80211_band band;
661 u8 valid_contexts;
662
663 void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
664 struct iwl_rx_cmd_buffer *rxb);
665
666 struct iwl_notif_wait_data notif_wait;
667
668 /* spectrum measurement report caching */
669 struct iwl_spectrum_notification measure_report;
670 u8 measurement_status;
671
672 /* ucode beacon time */
673 u32 ucode_beacon_time;
674 int missed_beacon_threshold;
675
676 /* track IBSS manager (last beacon) status */
677 u32 ibss_manager;
678
679 /* jiffies when last recovery from statistics was performed */
680 unsigned long rx_statistics_jiffies;
681
682 /*counters */
683 u32 rx_handlers_stats[REPLY_MAX];
684
685 /* rf reset */
686 struct iwl_rf_reset rf_reset;
687
688 /* firmware reload counter and timestamp */
689 unsigned long reload_jiffies;
690 int reload_count;
691 bool ucode_loaded;
692
693 u8 plcp_delta_threshold;
694
695 /* thermal calibration */
696 s32 temperature; /* Celsius */
697 s32 last_temperature;
698
699 struct iwl_wipan_noa_data __rcu *noa_data;
700
701 /* Scan related variables */
702 unsigned long scan_start;
703 unsigned long scan_start_tsf;
704 void *scan_cmd;
705 enum nl80211_band scan_band;
706 struct cfg80211_scan_request *scan_request;
707 struct ieee80211_vif *scan_vif;
708 enum iwl_scan_type scan_type;
709 u8 scan_tx_ant[NUM_NL80211_BANDS];
710 u8 mgmt_tx_ant;
711
712 /* max number of station keys */
713 u8 sta_key_max_num;
714
715 bool new_scan_threshold_behaviour;
716
717 bool wowlan;
718
719 /* EEPROM MAC addresses */
720 struct mac_address addresses[2];
721
722 struct iwl_rxon_context contexts[NUM_IWL_RXON_CTX];
723
724 __le16 switch_channel;
725
726 u8 start_calib;
727 struct iwl_sensitivity_data sensitivity_data;
728 struct iwl_chain_noise_data chain_noise_data;
729 __le16 sensitivity_tbl[HD_TABLE_SIZE];
730 __le16 enhance_sensitivity_tbl[ENHANCE_HD_TABLE_ENTRIES];
731
732 struct iwl_ht_config current_ht_config;
733
734 /* Rate scaling data */
735 u8 retry_rate;
736
737 int activity_timer_active;
738
739 struct iwl_power_mgr power_data;
740 struct iwl_tt_mgmt thermal_throttle;
741
742 /* station table variables */
743 int num_stations;
744 struct iwl_station_entry stations[IWLAGN_STATION_COUNT];
745 unsigned long ucode_key_table;
746 struct iwl_tid_data tid_data[IWLAGN_STATION_COUNT][IWL_MAX_TID_COUNT];
747 atomic_t num_aux_in_flight;
748
749 u8 mac80211_registered;
750
751 /* Indication if ieee80211_ops->open has been called */
752 u8 is_open;
753
754 enum nl80211_iftype iw_mode;
755
756 /* Last Rx'd beacon timestamp */
757 u64 timestamp;
758
759 struct {
760 __le32 flag;
761 struct statistics_general_common common;
762 struct statistics_rx_non_phy rx_non_phy;
763 struct statistics_rx_phy rx_ofdm;
764 struct statistics_rx_ht_phy rx_ofdm_ht;
765 struct statistics_rx_phy rx_cck;
766 struct statistics_tx tx;
767#ifdef CONFIG_IWLWIFI_DEBUGFS
768 struct statistics_bt_activity bt_activity;
769 __le32 num_bt_kills, accum_num_bt_kills;
770#endif
771 spinlock_t lock;
772 } statistics;
773#ifdef CONFIG_IWLWIFI_DEBUGFS
774 struct {
775 struct statistics_general_common common;
776 struct statistics_rx_non_phy rx_non_phy;
777 struct statistics_rx_phy rx_ofdm;
778 struct statistics_rx_ht_phy rx_ofdm_ht;
779 struct statistics_rx_phy rx_cck;
780 struct statistics_tx tx;
781 struct statistics_bt_activity bt_activity;
782 } accum_stats, delta_stats, max_delta_stats;
783#endif
784
785 /*
786 * reporting the number of tids has AGG on. 0 means
787 * no AGGREGATION
788 */
789 u8 agg_tids_count;
790
791 struct iwl_rx_phy_res last_phy_res;
792 u32 ampdu_ref;
793 bool last_phy_res_valid;
794
795 /*
796 * chain noise reset and gain commands are the
797 * two extra calibration commands follows the standard
798 * phy calibration commands
799 */
800 u8 phy_calib_chain_noise_reset_cmd;
801 u8 phy_calib_chain_noise_gain_cmd;
802
803 /* counts reply_tx error */
804 struct reply_tx_error_statistics reply_tx_stats;
805 struct reply_agg_tx_error_statistics reply_agg_tx_stats;
806
807 /* bt coex */
808 u8 bt_enable_flag;
809 u8 bt_status;
810 u8 bt_traffic_load, last_bt_traffic_load;
811 bool bt_ch_announce;
812 bool bt_full_concurrent;
813 __le32 kill_ack_mask;
814 __le32 kill_cts_mask;
815 __le16 bt_valid;
816 bool reduced_txpower;
817 u16 bt_on_thresh;
818 u16 bt_duration;
819 u16 dynamic_frag_thresh;
820 u8 bt_ci_compliance;
821 struct work_struct bt_traffic_change_work;
822 bool bt_enable_pspoll;
823 struct iwl_rxon_context *cur_rssi_ctx;
824 bool bt_is_sco;
825
826 struct work_struct restart;
827 struct work_struct scan_completed;
828 struct work_struct abort_scan;
829
830 struct work_struct beacon_update;
831 struct iwl_rxon_context *beacon_ctx;
832 struct sk_buff *beacon_skb;
833 void *beacon_cmd;
834
835 struct work_struct tt_work;
836 struct work_struct ct_enter;
837 struct work_struct ct_exit;
838 struct work_struct start_internal_scan;
839 struct work_struct tx_flush;
840 struct work_struct bt_full_concurrency;
841 struct work_struct bt_runtime_config;
842
843 struct delayed_work scan_check;
844
845 /* TX Power settings */
846 s8 tx_power_user_lmt;
847 s8 tx_power_next;
848
849#ifdef CONFIG_IWLWIFI_DEBUGFS
850 /* debugfs */
851 struct dentry *debugfs_dir;
852 u32 dbgfs_sram_offset, dbgfs_sram_len;
853 bool disable_ht40;
854 void *wowlan_sram;
855#endif /* CONFIG_IWLWIFI_DEBUGFS */
856
857 struct iwl_nvm_data *nvm_data;
858 /* eeprom blob for debugfs */
859 u8 *eeprom_blob;
860 size_t eeprom_blob_size;
861
862 struct work_struct txpower_work;
863 u32 calib_disabled;
864 struct work_struct run_time_calib_work;
865 struct timer_list statistics_periodic;
866 struct timer_list ucode_trace;
867
868 struct iwl_event_log event_log;
869
870#ifdef CONFIG_IWLWIFI_LEDS
871 struct led_classdev led;
872 unsigned long blink_on, blink_off;
873 bool led_registered;
874#endif
875
876 /* WoWLAN GTK rekey data */
877 u8 kck[NL80211_KCK_LEN], kek[NL80211_KEK_LEN];
878 __le64 replay_ctr;
879 __le16 last_seq_ctl;
880 bool have_rekey_data;
881#ifdef CONFIG_PM_SLEEP
882 struct wiphy_wowlan_support wowlan_support;
883#endif
884
885 /* device_pointers: pointers to ucode event tables */
886 struct {
887 u32 error_event_table;
888 u32 log_event_table;
889 } device_pointers;
890
891 /* indicator of loaded ucode image */
892 enum iwl_ucode_type cur_ucode;
893}; /*iwl_priv */
894
895static inline struct iwl_rxon_context *
896iwl_rxon_ctx_from_vif(struct ieee80211_vif *vif)
897{
898 struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
899
900 return vif_priv->ctx;
901}
902
903#define for_each_context(priv, ctx) \
904 for (ctx = &priv->contexts[IWL_RXON_CTX_BSS]; \
905 ctx < &priv->contexts[NUM_IWL_RXON_CTX]; ctx++) \
906 if (priv->valid_contexts & BIT(ctx->ctxid))
907
908static inline int iwl_is_associated_ctx(struct iwl_rxon_context *ctx)
909{
910 return (ctx->active.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
911}
912
913static inline int iwl_is_associated(struct iwl_priv *priv,
914 enum iwl_rxon_context_id ctxid)
915{
916 return iwl_is_associated_ctx(&priv->contexts[ctxid]);
917}
918
919static inline int iwl_is_any_associated(struct iwl_priv *priv)
920{
921 struct iwl_rxon_context *ctx;
922 for_each_context(priv, ctx)
923 if (iwl_is_associated_ctx(ctx))
924 return true;
925 return false;
926}
927
928#endif /* __iwl_dev_h__ */