1 /******************************************************************************
2 *
3 * Copyright(c) 2003 - 2012 Intel Corporation. All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of version 2 of the GNU General Public License as
7 * published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
12 * more details.
13 *
14 * You should have received a copy of the GNU General Public License along with
15 * this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
17 *
18 * The full GNU General Public License is included in this distribution in the
19 * file called LICENSE.
20 *
21 * Contact Information:
22 * Intel Linux Wireless <ilw@linux.intel.com>
23 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
24 *
25 *****************************************************************************/
26 /*
27 * Please use this file (iwl-dev.h) for driver implementation definitions.
28 * Please use iwl-commands.h for uCode API definitions.
29 */
30
31 #ifndef __iwl_dev_h__
32 #define __iwl_dev_h__
33
34 #include <linux/interrupt.h>
35 #include <linux/kernel.h>
36 #include <linux/wait.h>
37 #include <linux/leds.h>
38 #include <linux/slab.h>
39 #include <linux/mutex.h>
40
41 #include "iwl-eeprom.h"
42 #include "iwl-csr.h"
43 #include "iwl-debug.h"
44 #include "iwl-agn-hw.h"
45 #include "iwl-led.h"
46 #include "iwl-power.h"
47 #include "iwl-agn-rs.h"
48 #include "iwl-agn-tt.h"
49 #include "iwl-trans.h"
50 #include "iwl-shared.h"
51 #include "iwl-op-mode.h"
52 #include "iwl-notif-wait.h"
53
54 struct iwl_tx_queue;
55
56 /* CT-KILL constants */
57 #define CT_KILL_THRESHOLD_LEGACY 110 /* in Celsius */
58 #define CT_KILL_THRESHOLD 114 /* in Celsius */
59 #define CT_KILL_EXIT_THRESHOLD 95 /* in Celsius */
60
61 /* Default noise level to report when noise measurement is not available.
62 * This may be because we're:
63 * 1) Not associated no beacon statistics being sent to driver)
64 * 2) Scanning (noise measurement does not apply to associated channel)
65 * Use default noise value of -127 ... this is below the range of measurable
66 * Rx dBm for all agn devices, so it can indicate "unmeasurable" to user.
67 * Also, -127 works better than 0 when averaging frames with/without
68 * noise info (e.g. averaging might be done in app); measured dBm values are
69 * always negative ... using a negative value as the default keeps all
70 * averages within an s8's (used in some apps) range of negative values. */
71 #define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
72
73 /*
74 * RTS threshold here is total size [2347] minus 4 FCS bytes
75 * Per spec:
76 * a value of 0 means RTS on all data/management packets
77 * a value > max MSDU size means no RTS
78 * else RTS for data/management frames where MPDU is larger
79 * than RTS value.
80 */
81 #define DEFAULT_RTS_THRESHOLD 2347U
82 #define MIN_RTS_THRESHOLD 0U
83 #define MAX_RTS_THRESHOLD 2347U
84 #define MAX_MSDU_SIZE 2304U
85 #define MAX_MPDU_SIZE 2346U
86 #define DEFAULT_BEACON_INTERVAL 200U
87 #define DEFAULT_SHORT_RETRY_LIMIT 7U
88 #define DEFAULT_LONG_RETRY_LIMIT 4U
89
90 #define IWL_NUM_SCAN_RATES (2)
91
92 /*
93 * One for each channel, holds all channel setup data
94 * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
95 * with one another!
96 */
97 struct iwl_channel_info {
98 struct iwl_eeprom_channel eeprom; /* EEPROM regulatory limit */
99 struct iwl_eeprom_channel ht40_eeprom; /* EEPROM regulatory limit for
100 * HT40 channel */
101
102 u8 channel; /* channel number */
103 u8 flags; /* flags copied from EEPROM */
104 s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
105 s8 curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) limit */
106 s8 min_power; /* always 0 */
107 s8 scan_power; /* (dBm) regul. eeprom, direct scans, any rate */
108
109 u8 group_index; /* 0-4, maps channel to group1/2/3/4/5 */
110 u8 band_index; /* 0-4, maps channel to band1/2/3/4/5 */
111 enum ieee80211_band band;
112
113 /* HT40 channel info */
114 s8 ht40_max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
115 u8 ht40_flags; /* flags copied from EEPROM */
116 u8 ht40_extension_channel; /* HT_IE_EXT_CHANNEL_* */
117 };
118
119 /*
120 * Minimum number of queues. MAX_NUM is defined in hw specific files.
121 * Set the minimum to accommodate
122 * - 4 standard TX queues
123 * - the command queue
124 * - 4 PAN TX queues
125 * - the PAN multicast queue, and
126 * - the AUX (TX during scan dwell) queue.
127 */
128 #define IWL_MIN_NUM_QUEUES 11
129
130 /*
131 * Command queue depends on iPAN support.
132 */
133 #define IWL_DEFAULT_CMD_QUEUE_NUM 4
134 #define IWL_IPAN_CMD_QUEUE_NUM 9
135
136 #define IEEE80211_DATA_LEN 2304
137 #define IEEE80211_4ADDR_LEN 30
138 #define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
139 #define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
140
141 #define SUP_RATE_11A_MAX_NUM_CHANNELS 8
142 #define SUP_RATE_11B_MAX_NUM_CHANNELS 4
143 #define SUP_RATE_11G_MAX_NUM_CHANNELS 12
144
145 #define IWL_SUPPORTED_RATES_IE_LEN 8
146
147 #define IWL_INVALID_RATE 0xFF
148 #define IWL_INVALID_VALUE -1
149
150 union iwl_ht_rate_supp {
151 u16 rates;
152 struct {
153 u8 siso_rate;
154 u8 mimo_rate;
155 };
156 };
157
158 #define CFG_HT_RX_AMPDU_FACTOR_8K (0x0)
159 #define CFG_HT_RX_AMPDU_FACTOR_16K (0x1)
160 #define CFG_HT_RX_AMPDU_FACTOR_32K (0x2)
161 #define CFG_HT_RX_AMPDU_FACTOR_64K (0x3)
162 #define CFG_HT_RX_AMPDU_FACTOR_DEF CFG_HT_RX_AMPDU_FACTOR_64K
163 #define CFG_HT_RX_AMPDU_FACTOR_MAX CFG_HT_RX_AMPDU_FACTOR_64K
164 #define CFG_HT_RX_AMPDU_FACTOR_MIN CFG_HT_RX_AMPDU_FACTOR_8K
165
166 /*
167 * Maximal MPDU density for TX aggregation
168 * 4 - 2us density
169 * 5 - 4us density
170 * 6 - 8us density
171 * 7 - 16us density
172 */
173 #define CFG_HT_MPDU_DENSITY_2USEC (0x4)
174 #define CFG_HT_MPDU_DENSITY_4USEC (0x5)
175 #define CFG_HT_MPDU_DENSITY_8USEC (0x6)
176 #define CFG_HT_MPDU_DENSITY_16USEC (0x7)
177 #define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_4USEC
178 #define CFG_HT_MPDU_DENSITY_MAX CFG_HT_MPDU_DENSITY_16USEC
179 #define CFG_HT_MPDU_DENSITY_MIN (0x1)
180
181 struct iwl_ht_config {
182 bool single_chain_sufficient;
183 enum ieee80211_smps_mode smps; /* current smps mode */
184 };
185
186 /* QoS structures */
187 struct iwl_qos_info {
188 int qos_active;
189 struct iwl_qosparam_cmd def_qos_parm;
190 };
191
192 /**
193 * enum iwl_agg_state
194 *
195 * The state machine of the BA agreement establishment / tear down.
196 * These states relate to a specific RA / TID.
197 *
198 * @IWL_AGG_OFF: aggregation is not used
199 * @IWL_AGG_ON: aggregation session is up
200 * @IWL_EMPTYING_HW_QUEUE_ADDBA: establishing a BA session - waiting for the
201 * HW queue to be empty from packets for this RA /TID.
202 * @IWL_EMPTYING_HW_QUEUE_DELBA: tearing down a BA session - waiting for the
203 * HW queue to be empty from packets for this RA /TID.
204 */
205 enum iwl_agg_state {
206 IWL_AGG_OFF = 0,
207 IWL_AGG_ON,
208 IWL_EMPTYING_HW_QUEUE_ADDBA,
209 IWL_EMPTYING_HW_QUEUE_DELBA,
210 };
211
212 /**
213 * struct iwl_ht_agg - aggregation state machine
214
215 * This structs holds the states for the BA agreement establishment and tear
216 * down. It also holds the state during the BA session itself. This struct is
217 * duplicated for each RA / TID.
218
219 * @rate_n_flags: Rate at which Tx was attempted. Holds the data between the
220 * Tx response (REPLY_TX), and the block ack notification
221 * (REPLY_COMPRESSED_BA).
222 * @state: state of the BA agreement establishment / tear down.
223 * @txq_id: Tx queue used by the BA session - used by the transport layer.
224 * Needed by the upper layer for debugfs only.
225 * @ssn: the first packet to be sent in AGG HW queue in Tx AGG start flow, or
226 * the first packet to be sent in legacy HW queue in Tx AGG stop flow.
227 * Basically when next_reclaimed reaches ssn, we can tell mac80211 that
228 * we are ready to finish the Tx AGG stop / start flow.
229 * @wait_for_ba: Expect block-ack before next Tx reply
230 */
231 struct iwl_ht_agg {
232 u32 rate_n_flags;
233 enum iwl_agg_state state;
234 u16 txq_id;
235 u16 ssn;
236 bool wait_for_ba;
237 };
238
239 /**
240 * struct iwl_tid_data - one for each RA / TID
241
242 * This structs holds the states for each RA / TID.
243
244 * @seq_number: the next WiFi sequence number to use
245 * @next_reclaimed: the WiFi sequence number of the next packet to be acked.
246 * This is basically (last acked packet++).
247 * @agg: aggregation state machine
248 */
249 struct iwl_tid_data {
250 u16 seq_number;
251 u16 next_reclaimed;
252 struct iwl_ht_agg agg;
253 };
254
255 /*
256 * Structure should be accessed with sta_lock held. When station addition
257 * is in progress (IWL_STA_UCODE_INPROGRESS) it is possible to access only
258 * the commands (iwl_addsta_cmd and iwl_link_quality_cmd) without sta_lock
259 * held.
260 */
261 struct iwl_station_entry {
262 struct iwl_addsta_cmd sta;
263 u8 used, ctxid;
264 struct iwl_link_quality_cmd *lq;
265 };
266
267 /*
268 * iwl_station_priv: Driver's private station information
269 *
270 * When mac80211 creates a station it reserves some space (hw->sta_data_size)
271 * in the structure for use by driver. This structure is places in that
272 * space.
273 */
274 struct iwl_station_priv {
275 struct iwl_rxon_context *ctx;
276 struct iwl_lq_sta lq_sta;
277 atomic_t pending_frames;
278 bool client;
279 bool asleep;
280 u8 max_agg_bufsize;
281 u8 sta_id;
282 };
283
284 /**
285 * struct iwl_vif_priv - driver's private per-interface information
286 *
287 * When mac80211 allocates a virtual interface, it can allocate
288 * space for us to put data into.
289 */
290 struct iwl_vif_priv {
291 struct iwl_rxon_context *ctx;
292 u8 ibss_bssid_sta_id;
293 };
294
295 struct iwl_sensitivity_ranges {
296 u16 min_nrg_cck;
297
298 u16 nrg_th_cck;
299 u16 nrg_th_ofdm;
300
301 u16 auto_corr_min_ofdm;
302 u16 auto_corr_min_ofdm_mrc;
303 u16 auto_corr_min_ofdm_x1;
304 u16 auto_corr_min_ofdm_mrc_x1;
305
306 u16 auto_corr_max_ofdm;
307 u16 auto_corr_max_ofdm_mrc;
308 u16 auto_corr_max_ofdm_x1;
309 u16 auto_corr_max_ofdm_mrc_x1;
310
311 u16 auto_corr_max_cck;
312 u16 auto_corr_max_cck_mrc;
313 u16 auto_corr_min_cck;
314 u16 auto_corr_min_cck_mrc;
315
316 u16 barker_corr_th_min;
317 u16 barker_corr_th_min_mrc;
318 u16 nrg_th_cca;
319 };
320
321
322 #define KELVIN_TO_CELSIUS(x) ((x)-273)
323 #define CELSIUS_TO_KELVIN(x) ((x)+273)
324
325
326 /******************************************************************************
327 *
328 * Functions implemented in core module which are forward declared here
329 * for use by iwl-[4-5].c
330 *
331 * NOTE: The implementation of these functions are not hardware specific
332 * which is why they are in the core module files.
333 *
334 * Naming convention --
335 * iwl_ <-- Is part of iwlwifi
336 * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
337 *
338 ****************************************************************************/
339 extern void iwl_update_chain_flags(struct iwl_priv *priv);
340 extern const u8 iwl_bcast_addr[ETH_ALEN];
341
342 #define IWL_OPERATION_MODE_AUTO 0
343 #define IWL_OPERATION_MODE_HT_ONLY 1
344 #define IWL_OPERATION_MODE_MIXED 2
345 #define IWL_OPERATION_MODE_20MHZ 3
346
347 #define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
348
349 /* Sensitivity and chain noise calibration */
350 #define INITIALIZATION_VALUE 0xFFFF
351 #define IWL_CAL_NUM_BEACONS 16
352 #define MAXIMUM_ALLOWED_PATHLOSS 15
353
354 #define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
355
356 #define MAX_FA_OFDM 50
357 #define MIN_FA_OFDM 5
358 #define MAX_FA_CCK 50
359 #define MIN_FA_CCK 5
360
361 #define AUTO_CORR_STEP_OFDM 1
362
363 #define AUTO_CORR_STEP_CCK 3
364 #define AUTO_CORR_MAX_TH_CCK 160
365
366 #define NRG_DIFF 2
367 #define NRG_STEP_CCK 2
368 #define NRG_MARGIN 8
369 #define MAX_NUMBER_CCK_NO_FA 100
370
371 #define AUTO_CORR_CCK_MIN_VAL_DEF (125)
372
373 #define CHAIN_A 0
374 #define CHAIN_B 1
375 #define CHAIN_C 2
376 #define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
377 #define ALL_BAND_FILTER 0xFF00
378 #define IN_BAND_FILTER 0xFF
379 #define MIN_AVERAGE_NOISE_MAX_VALUE 0xFFFFFFFF
380
381 #define NRG_NUM_PREV_STAT_L 20
382 #define NUM_RX_CHAINS 3
383
384 enum iwlagn_false_alarm_state {
385 IWL_FA_TOO_MANY = 0,
386 IWL_FA_TOO_FEW = 1,
387 IWL_FA_GOOD_RANGE = 2,
388 };
389
390 enum iwlagn_chain_noise_state {
391 IWL_CHAIN_NOISE_ALIVE = 0, /* must be 0 */
392 IWL_CHAIN_NOISE_ACCUMULATE,
393 IWL_CHAIN_NOISE_CALIBRATED,
394 IWL_CHAIN_NOISE_DONE,
395 };
396
397 /* Sensitivity calib data */
398 struct iwl_sensitivity_data {
399 u32 auto_corr_ofdm;
400 u32 auto_corr_ofdm_mrc;
401 u32 auto_corr_ofdm_x1;
402 u32 auto_corr_ofdm_mrc_x1;
403 u32 auto_corr_cck;
404 u32 auto_corr_cck_mrc;
405
406 u32 last_bad_plcp_cnt_ofdm;
407 u32 last_fa_cnt_ofdm;
408 u32 last_bad_plcp_cnt_cck;
409 u32 last_fa_cnt_cck;
410
411 u32 nrg_curr_state;
412 u32 nrg_prev_state;
413 u32 nrg_value[10];
414 u8 nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
415 u32 nrg_silence_ref;
416 u32 nrg_energy_idx;
417 u32 nrg_silence_idx;
418 u32 nrg_th_cck;
419 s32 nrg_auto_corr_silence_diff;
420 u32 num_in_cck_no_fa;
421 u32 nrg_th_ofdm;
422
423 u16 barker_corr_th_min;
424 u16 barker_corr_th_min_mrc;
425 u16 nrg_th_cca;
426 };
427
428 /* Chain noise (differential Rx gain) calib data */
429 struct iwl_chain_noise_data {
430 u32 active_chains;
431 u32 chain_noise_a;
432 u32 chain_noise_b;
433 u32 chain_noise_c;
434 u32 chain_signal_a;
435 u32 chain_signal_b;
436 u32 chain_signal_c;
437 u16 beacon_count;
438 u8 disconn_array[NUM_RX_CHAINS];
439 u8 delta_gain_code[NUM_RX_CHAINS];
440 u8 radio_write;
441 u8 state;
442 };
443
444 enum {
445 MEASUREMENT_READY = (1 << 0),
446 MEASUREMENT_ACTIVE = (1 << 1),
447 };
448
449 enum iwl_nvm_type {
450 NVM_DEVICE_TYPE_EEPROM = 0,
451 NVM_DEVICE_TYPE_OTP,
452 };
453
454 /*
455 * Two types of OTP memory access modes
456 * IWL_OTP_ACCESS_ABSOLUTE - absolute address mode,
457 * based on physical memory addressing
458 * IWL_OTP_ACCESS_RELATIVE - relative address mode,
459 * based on logical memory addressing
460 */
461 enum iwl_access_mode {
462 IWL_OTP_ACCESS_ABSOLUTE,
463 IWL_OTP_ACCESS_RELATIVE,
464 };
465
466 /* reply_tx_statistics (for _agn devices) */
467 struct reply_tx_error_statistics {
468 u32 pp_delay;
469 u32 pp_few_bytes;
470 u32 pp_bt_prio;
471 u32 pp_quiet_period;
472 u32 pp_calc_ttak;
473 u32 int_crossed_retry;
474 u32 short_limit;
475 u32 long_limit;
476 u32 fifo_underrun;
477 u32 drain_flow;
478 u32 rfkill_flush;
479 u32 life_expire;
480 u32 dest_ps;
481 u32 host_abort;
482 u32 bt_retry;
483 u32 sta_invalid;
484 u32 frag_drop;
485 u32 tid_disable;
486 u32 fifo_flush;
487 u32 insuff_cf_poll;
488 u32 fail_hw_drop;
489 u32 sta_color_mismatch;
490 u32 unknown;
491 };
492
493 /* reply_agg_tx_statistics (for _agn devices) */
494 struct reply_agg_tx_error_statistics {
495 u32 underrun;
496 u32 bt_prio;
497 u32 few_bytes;
498 u32 abort;
499 u32 last_sent_ttl;
500 u32 last_sent_try;
501 u32 last_sent_bt_kill;
502 u32 scd_query;
503 u32 bad_crc32;
504 u32 response;
505 u32 dump_tx;
506 u32 delay_tx;
507 u32 unknown;
508 };
509
510 /* management statistics */
511 enum iwl_mgmt_stats {
512 MANAGEMENT_ASSOC_REQ = 0,
513 MANAGEMENT_ASSOC_RESP,
514 MANAGEMENT_REASSOC_REQ,
515 MANAGEMENT_REASSOC_RESP,
516 MANAGEMENT_PROBE_REQ,
517 MANAGEMENT_PROBE_RESP,
518 MANAGEMENT_BEACON,
519 MANAGEMENT_ATIM,
520 MANAGEMENT_DISASSOC,
521 MANAGEMENT_AUTH,
522 MANAGEMENT_DEAUTH,
523 MANAGEMENT_ACTION,
524 MANAGEMENT_MAX,
525 };
526 /* control statistics */
527 enum iwl_ctrl_stats {
528 CONTROL_BACK_REQ = 0,
529 CONTROL_BACK,
530 CONTROL_PSPOLL,
531 CONTROL_RTS,
532 CONTROL_CTS,
533 CONTROL_ACK,
534 CONTROL_CFEND,
535 CONTROL_CFENDACK,
536 CONTROL_MAX,
537 };
538
539 struct traffic_stats {
540 #ifdef CONFIG_IWLWIFI_DEBUGFS
541 u32 mgmt[MANAGEMENT_MAX];
542 u32 ctrl[CONTROL_MAX];
543 u32 data_cnt;
544 u64 data_bytes;
545 #endif
546 };
547
548 /*
549 * schedule the timer to wake up every UCODE_TRACE_PERIOD milliseconds
550 * to perform continuous uCode event logging operation if enabled
551 */
552 #define UCODE_TRACE_PERIOD (10)
553
554 /*
555 * iwl_event_log: current uCode event log position
556 *
557 * @ucode_trace: enable/disable ucode continuous trace timer
558 * @num_wraps: how many times the event buffer wraps
559 * @next_entry: the entry just before the next one that uCode would fill
560 * @non_wraps_count: counter for no wrap detected when dump ucode events
561 * @wraps_once_count: counter for wrap once detected when dump ucode events
562 * @wraps_more_count: counter for wrap more than once detected
563 * when dump ucode events
564 */
565 struct iwl_event_log {
566 bool ucode_trace;
567 u32 num_wraps;
568 u32 next_entry;
569 int non_wraps_count;
570 int wraps_once_count;
571 int wraps_more_count;
572 };
573
574 /*
575 * This is the threshold value of plcp error rate per 100mSecs. It is
576 * used to set and check for the validity of plcp_delta.
577 */
578 #define IWL_MAX_PLCP_ERR_THRESHOLD_MIN (1)
579 #define IWL_MAX_PLCP_ERR_THRESHOLD_DEF (50)
580 #define IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF (100)
581 #define IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF (200)
582 #define IWL_MAX_PLCP_ERR_THRESHOLD_MAX (255)
583 #define IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE (0)
584
585 #define IWL_DELAY_NEXT_FORCE_RF_RESET (HZ*3)
586 #define IWL_DELAY_NEXT_FORCE_FW_RELOAD (HZ*5)
587
588 /* TX queue watchdog timeouts in mSecs */
589 #define IWL_DEF_WD_TIMEOUT (2000)
590 #define IWL_LONG_WD_TIMEOUT (10000)
591 #define IWL_MAX_WD_TIMEOUT (120000)
592
593 /* BT Antenna Coupling Threshold (dB) */
594 #define IWL_BT_ANTENNA_COUPLING_THRESHOLD (35)
595
596 /* Firmware reload counter and Timestamp */
597 #define IWL_MIN_RELOAD_DURATION 1000 /* 1000 ms */
598 #define IWL_MAX_CONTINUE_RELOAD_CNT 4
599
600
601 enum iwl_reset {
602 IWL_RF_RESET = 0,
603 IWL_FW_RESET,
604 IWL_MAX_FORCE_RESET,
605 };
606
607 struct iwl_force_reset {
608 int reset_request_count;
609 int reset_success_count;
610 int reset_reject_count;
611 unsigned long reset_duration;
612 unsigned long last_force_reset_jiffies;
613 };
614
615 /* extend beacon time format bit shifting */
616 /*
617 * for _agn devices
618 * bits 31:22 - extended
619 * bits 21:0 - interval
620 */
621 #define IWLAGN_EXT_BEACON_TIME_POS 22
622
623 struct iwl_rxon_context {
624 struct ieee80211_vif *vif;
625
626 /*
627 * We could use the vif to indicate active, but we
628 * also need it to be active during disabling when
629 * we already removed the vif for type setting.
630 */
631 bool always_active, is_active;
632
633 bool ht_need_multiple_chains;
634
635 enum iwl_rxon_context_id ctxid;
636
637 u32 interface_modes, exclusive_interface_modes;
638 u8 unused_devtype, ap_devtype, ibss_devtype, station_devtype;
639
640 /*
641 * We declare this const so it can only be
642 * changed via explicit cast within the
643 * routines that actually update the physical
644 * hardware.
645 */
646 const struct iwl_rxon_cmd active;
647 struct iwl_rxon_cmd staging;
648
649 struct iwl_rxon_time_cmd timing;
650
651 struct iwl_qos_info qos_data;
652
653 u8 bcast_sta_id, ap_sta_id;
654
655 u8 rxon_cmd, rxon_assoc_cmd, rxon_timing_cmd;
656 u8 qos_cmd;
657 u8 wep_key_cmd;
658
659 struct iwl_wep_key wep_keys[WEP_KEYS_MAX];
660 u8 key_mapping_keys;
661
662 __le32 station_flags;
663
664 int beacon_int;
665
666 struct {
667 bool non_gf_sta_present;
668 u8 protection;
669 bool enabled, is_40mhz;
670 u8 extension_chan_offset;
671 } ht;
672 };
673
674 enum iwl_scan_type {
675 IWL_SCAN_NORMAL,
676 IWL_SCAN_RADIO_RESET,
677 IWL_SCAN_ROC,
678 };
679
680 #ifdef CONFIG_IWLWIFI_DEVICE_TESTMODE
681 struct iwl_testmode_trace {
682 u32 buff_size;
683 u32 total_size;
684 u32 num_chunks;
685 u8 *cpu_addr;
686 u8 *trace_addr;
687 dma_addr_t dma_addr;
688 bool trace_enabled;
689 };
690 struct iwl_testmode_mem {
691 u32 buff_size;
692 u32 num_chunks;
693 u8 *buff_addr;
694 bool read_in_progress;
695 };
696 #endif
697
698 struct iwl_wipan_noa_data {
699 struct rcu_head rcu_head;
700 u32 length;
701 u8 data[];
702 };
703
704 #define IWL_OP_MODE_GET_DVM(_iwl_op_mode) \
705 ((struct iwl_priv *) ((_iwl_op_mode)->op_mode_specific))
706
707 #define IWL_MAC80211_GET_DVM(_hw) \
708 ((struct iwl_priv *) ((struct iwl_op_mode *) \
709 (_hw)->priv)->op_mode_specific)
710
711 struct iwl_priv {
712
713 /*data shared among all the driver's layers */
714 struct iwl_shared *shrd;
715 const struct iwl_fw *fw;
716 unsigned long status;
717
718 spinlock_t sta_lock;
719 struct mutex mutex;
720
721 unsigned long transport_queue_stop;
722 bool passive_no_rx;
723
724 /* ieee device used by generic ieee processing code */
725 struct ieee80211_hw *hw;
726 struct ieee80211_channel *ieee_channels;
727 struct ieee80211_rate *ieee_rates;
728
729 struct list_head calib_results;
730
731 struct workqueue_struct *workqueue;
732
733 enum ieee80211_band band;
734
735 void (*pre_rx_handler)(struct iwl_priv *priv,
736 struct iwl_rx_cmd_buffer *rxb);
737 int (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
738 struct iwl_rx_cmd_buffer *rxb,
739 struct iwl_device_cmd *cmd);
740
741 struct iwl_notif_wait_data notif_wait;
742
743 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
744
745 /* spectrum measurement report caching */
746 struct iwl_spectrum_notification measure_report;
747 u8 measurement_status;
748
749 #define IWL_OWNERSHIP_DRIVER 0
750 #define IWL_OWNERSHIP_TM 1
751 u8 ucode_owner;
752
753 /* ucode beacon time */
754 u32 ucode_beacon_time;
755 int missed_beacon_threshold;
756
757 /* track IBSS manager (last beacon) status */
758 u32 ibss_manager;
759
760 /* jiffies when last recovery from statistics was performed */
761 unsigned long rx_statistics_jiffies;
762
763 /*counters */
764 u32 rx_handlers_stats[REPLY_MAX];
765
766 /* force reset */
767 struct iwl_force_reset force_reset[IWL_MAX_FORCE_RESET];
768
769 /* firmware reload counter and timestamp */
770 unsigned long reload_jiffies;
771 int reload_count;
772 bool ucode_loaded;
773 bool init_ucode_run; /* Don't run init uCode again */
774
775 /* we allocate array of iwl_channel_info for NIC's valid channels.
776 * Access via channel # using indirect index array */
777 struct iwl_channel_info *channel_info; /* channel info array */
778 u8 channel_count; /* # of channels */
779
780 u8 plcp_delta_threshold;
781
782 /* thermal calibration */
783 s32 temperature; /* Celsius */
784 s32 last_temperature;
785
786 struct iwl_wipan_noa_data __rcu *noa_data;
787
788 /* Scan related variables */
789 unsigned long scan_start;
790 unsigned long scan_start_tsf;
791 void *scan_cmd;
792 enum ieee80211_band scan_band;
793 struct cfg80211_scan_request *scan_request;
794 struct ieee80211_vif *scan_vif;
795 enum iwl_scan_type scan_type;
796 u8 scan_tx_ant[IEEE80211_NUM_BANDS];
797 u8 mgmt_tx_ant;
798
799 /* max number of station keys */
800 u8 sta_key_max_num;
801
802 bool new_scan_threshold_behaviour;
803
804 bool wowlan;
805
806 /* EEPROM MAC addresses */
807 struct mac_address addresses[2];
808
809 struct iwl_rxon_context contexts[NUM_IWL_RXON_CTX];
810
811 __le16 switch_channel;
812
813 u16 active_rate;
814
815 u8 start_calib;
816 struct iwl_sensitivity_data sensitivity_data;
817 struct iwl_chain_noise_data chain_noise_data;
818 __le16 sensitivity_tbl[HD_TABLE_SIZE];
819 __le16 enhance_sensitivity_tbl[ENHANCE_HD_TABLE_ENTRIES];
820
821 struct iwl_ht_config current_ht_config;
822
823 /* Rate scaling data */
824 u8 retry_rate;
825
826 int activity_timer_active;
827
828 /* counts mgmt, ctl, and data packets */
829 struct traffic_stats tx_stats;
830 struct traffic_stats rx_stats;
831
832 struct iwl_power_mgr power_data;
833 struct iwl_tt_mgmt thermal_throttle;
834
835 /* station table variables */
836 int num_stations;
837 struct iwl_station_entry stations[IWLAGN_STATION_COUNT];
838 unsigned long ucode_key_table;
839 struct iwl_tid_data tid_data[IWLAGN_STATION_COUNT][IWL_MAX_TID_COUNT];
840
841 u8 mac80211_registered;
842
843 /* Indication if ieee80211_ops->open has been called */
844 u8 is_open;
845
846 enum nl80211_iftype iw_mode;
847
848 /* Last Rx'd beacon timestamp */
849 u64 timestamp;
850
851 struct {
852 __le32 flag;
853 struct statistics_general_common common;
854 struct statistics_rx_non_phy rx_non_phy;
855 struct statistics_rx_phy rx_ofdm;
856 struct statistics_rx_ht_phy rx_ofdm_ht;
857 struct statistics_rx_phy rx_cck;
858 struct statistics_tx tx;
859 #ifdef CONFIG_IWLWIFI_DEBUGFS
860 struct statistics_bt_activity bt_activity;
861 __le32 num_bt_kills, accum_num_bt_kills;
862 #endif
863 spinlock_t lock;
864 } statistics;
865 #ifdef CONFIG_IWLWIFI_DEBUGFS
866 struct {
867 struct statistics_general_common common;
868 struct statistics_rx_non_phy rx_non_phy;
869 struct statistics_rx_phy rx_ofdm;
870 struct statistics_rx_ht_phy rx_ofdm_ht;
871 struct statistics_rx_phy rx_cck;
872 struct statistics_tx tx;
873 struct statistics_bt_activity bt_activity;
874 } accum_stats, delta_stats, max_delta_stats;
875 #endif
876
877 /*
878 * reporting the number of tids has AGG on. 0 means
879 * no AGGREGATION
880 */
881 u8 agg_tids_count;
882
883 struct iwl_rx_phy_res last_phy_res;
884 bool last_phy_res_valid;
885
886 /*
887 * chain noise reset and gain commands are the
888 * two extra calibration commands follows the standard
889 * phy calibration commands
890 */
891 u8 phy_calib_chain_noise_reset_cmd;
892 u8 phy_calib_chain_noise_gain_cmd;
893
894 /* counts reply_tx error */
895 struct reply_tx_error_statistics reply_tx_stats;
896 struct reply_agg_tx_error_statistics reply_agg_tx_stats;
897
898 /* remain-on-channel offload support */
899 struct ieee80211_channel *hw_roc_channel;
900 struct delayed_work hw_roc_disable_work;
901 enum nl80211_channel_type hw_roc_chantype;
902 int hw_roc_duration;
903 bool hw_roc_setup, hw_roc_start_notified;
904
905 /* bt coex */
906 u8 bt_enable_flag;
907 u8 bt_status;
908 u8 bt_traffic_load, last_bt_traffic_load;
909 bool bt_ch_announce;
910 bool bt_full_concurrent;
911 bool bt_ant_couple_ok;
912 __le32 kill_ack_mask;
913 __le32 kill_cts_mask;
914 __le16 bt_valid;
915 u16 bt_on_thresh;
916 u16 bt_duration;
917 u16 dynamic_frag_thresh;
918 u8 bt_ci_compliance;
919 struct work_struct bt_traffic_change_work;
920 bool bt_enable_pspoll;
921 struct iwl_rxon_context *cur_rssi_ctx;
922 bool bt_is_sco;
923
924 struct work_struct restart;
925 struct work_struct scan_completed;
926 struct work_struct abort_scan;
927
928 struct work_struct beacon_update;
929 struct iwl_rxon_context *beacon_ctx;
930 struct sk_buff *beacon_skb;
931 void *beacon_cmd;
932
933 struct work_struct tt_work;
934 struct work_struct ct_enter;
935 struct work_struct ct_exit;
936 struct work_struct start_internal_scan;
937 struct work_struct tx_flush;
938 struct work_struct bt_full_concurrency;
939 struct work_struct bt_runtime_config;
940
941 struct delayed_work scan_check;
942
943 /* TX Power */
944 s8 tx_power_user_lmt;
945 s8 tx_power_device_lmt;
946 s8 tx_power_lmt_in_half_dbm; /* max tx power in half-dBm format */
947 s8 tx_power_next;
948
949 #ifdef CONFIG_IWLWIFI_DEBUGFS
950 /* debugfs */
951 u16 tx_traffic_idx;
952 u16 rx_traffic_idx;
953 u8 *tx_traffic;
954 u8 *rx_traffic;
955 struct dentry *debugfs_dir;
956 u32 dbgfs_sram_offset, dbgfs_sram_len;
957 bool disable_ht40;
958 void *wowlan_sram;
959 #endif /* CONFIG_IWLWIFI_DEBUGFS */
960
961 struct work_struct txpower_work;
962 u32 disable_sens_cal;
963 u32 disable_chain_noise_cal;
964 struct work_struct run_time_calib_work;
965 struct timer_list statistics_periodic;
966 struct timer_list ucode_trace;
967 struct timer_list watchdog;
968
969 struct iwl_event_log event_log;
970
971 struct led_classdev led;
972 unsigned long blink_on, blink_off;
973 bool led_registered;
974 #ifdef CONFIG_IWLWIFI_DEVICE_TESTMODE
975 struct iwl_testmode_trace testmode_trace;
976 struct iwl_testmode_mem testmode_mem;
977 u32 tm_fixed_rate;
978 #endif
979
980 /* WoWLAN GTK rekey data */
981 u8 kck[NL80211_KCK_LEN], kek[NL80211_KEK_LEN];
982 __le64 replay_ctr;
983 __le16 last_seq_ctl;
984 bool have_rekey_data;
985 }; /*iwl_priv */
986
987 extern struct kmem_cache *iwl_tx_cmd_pool;
988 extern struct iwl_mod_params iwlagn_mod_params;
989
990 static inline struct iwl_rxon_context *
iwl_rxon_ctx_from_vif(struct ieee80211_vif * vif)991 iwl_rxon_ctx_from_vif(struct ieee80211_vif *vif)
992 {
993 struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
994
995 return vif_priv->ctx;
996 }
997
998 #define for_each_context(priv, ctx) \
999 for (ctx = &priv->contexts[IWL_RXON_CTX_BSS]; \
1000 ctx < &priv->contexts[NUM_IWL_RXON_CTX]; ctx++) \
1001 if (priv->shrd->valid_contexts & BIT(ctx->ctxid))
1002
iwl_is_associated_ctx(struct iwl_rxon_context * ctx)1003 static inline int iwl_is_associated_ctx(struct iwl_rxon_context *ctx)
1004 {
1005 return (ctx->active.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
1006 }
1007
iwl_is_associated(struct iwl_priv * priv,enum iwl_rxon_context_id ctxid)1008 static inline int iwl_is_associated(struct iwl_priv *priv,
1009 enum iwl_rxon_context_id ctxid)
1010 {
1011 return iwl_is_associated_ctx(&priv->contexts[ctxid]);
1012 }
1013
iwl_is_any_associated(struct iwl_priv * priv)1014 static inline int iwl_is_any_associated(struct iwl_priv *priv)
1015 {
1016 struct iwl_rxon_context *ctx;
1017 for_each_context(priv, ctx)
1018 if (iwl_is_associated_ctx(ctx))
1019 return true;
1020 return false;
1021 }
1022
is_channel_valid(const struct iwl_channel_info * ch_info)1023 static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
1024 {
1025 if (ch_info == NULL)
1026 return 0;
1027 return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
1028 }
1029
is_channel_radar(const struct iwl_channel_info * ch_info)1030 static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
1031 {
1032 return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
1033 }
1034
is_channel_a_band(const struct iwl_channel_info * ch_info)1035 static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
1036 {
1037 return ch_info->band == IEEE80211_BAND_5GHZ;
1038 }
1039
is_channel_bg_band(const struct iwl_channel_info * ch_info)1040 static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
1041 {
1042 return ch_info->band == IEEE80211_BAND_2GHZ;
1043 }
1044
is_channel_passive(const struct iwl_channel_info * ch)1045 static inline int is_channel_passive(const struct iwl_channel_info *ch)
1046 {
1047 return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1048 }
1049
is_channel_ibss(const struct iwl_channel_info * ch)1050 static inline int is_channel_ibss(const struct iwl_channel_info *ch)
1051 {
1052 return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1053 }
1054
1055 #endif /* __iwl_dev_h__ */
1056