drivers/net/wireless/iwlwifi/iwl-dev.h

   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 #include <net/ieee80211_radiotap.h>
  41
  42 #include "iwl-eeprom.h"
  43 #include "iwl-csr.h"
  44 #include "iwl-prph.h"
  45 #include "iwl-debug.h"
  46 #include "iwl-agn-hw.h"
  47 #include "iwl-led.h"
  48 #include "iwl-power.h"
  49 #include "iwl-agn-rs.h"
  50 #include "iwl-agn-tt.h"
  51 #include "iwl-trans.h"
  52 #include "iwl-shared.h"
  53 #include "iwl-op-mode.h"
  54
  55 struct iwl_tx_queue;
  56
  57 /* CT-KILL constants */
  58 #define CT_KILL_THRESHOLD_LEGACY   110 /* in Celsius */
  59 #define CT_KILL_THRESHOLD          114 /* in Celsius */
  60 #define CT_KILL_EXIT_THRESHOLD     95  /* in Celsius */
  61
  62 /* Default noise level to report when noise measurement is not available.
  63  *   This may be because we're:
  64  *   1)  Not associated  no beacon statistics being sent to driver)
  65  *   2)  Scanning (noise measurement does not apply to associated channel)
  66  * Use default noise value of -127 ... this is below the range of measurable
  67  *   Rx dBm for all agn devices, so it can indicate "unmeasurable" to user.
  68  *   Also, -127 works better than 0 when averaging frames with/without
  69  *   noise info (e.g. averaging might be done in app); measured dBm values are
  70  *   always negative ... using a negative value as the default keeps all
  71  *   averages within an s8's (used in some apps) range of negative values. */
  72 #define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
  73
  74 /*
  75  * RTS threshold here is total size [2347] minus 4 FCS bytes
  76  * Per spec:
  77  *   a value of 0 means RTS on all data/management packets
  78  *   a value > max MSDU size means no RTS
  79  * else RTS for data/management frames where MPDU is larger
  80  *   than RTS value.
  81  */
  82 #define DEFAULT_RTS_THRESHOLD     2347U
  83 #define MIN_RTS_THRESHOLD         0U
  84 #define MAX_RTS_THRESHOLD         2347U
  85 #define MAX_MSDU_SIZE             2304U
  86 #define MAX_MPDU_SIZE             2346U
  87 #define DEFAULT_BEACON_INTERVAL   200U
  88 #define DEFAULT_SHORT_RETRY_LIMIT 7U
  89 #define DEFAULT_LONG_RETRY_LIMIT  4U
  90
  91 #define IWL_NUM_SCAN_RATES         (2)
  92
  93 /*
  94  * One for each channel, holds all channel setup data
  95  * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
  96  *     with one another!
  97  */
  98 struct iwl_channel_info {
  99         struct iwl_eeprom_channel eeprom;       /* EEPROM regulatory limit */
 100         struct iwl_eeprom_channel ht40_eeprom;  /* EEPROM regulatory limit for
 101                                                  * HT40 channel */
 102
 103         u8 channel;       /* channel number */
 104         u8 flags;         /* flags copied from EEPROM */
 105         s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
 106         s8 curr_txpow;    /* (dBm) regulatory/spectrum/user (not h/w) limit */
 107         s8 min_power;     /* always 0 */
 108         s8 scan_power;    /* (dBm) regul. eeprom, direct scans, any rate */
 109
 110         u8 group_index;   /* 0-4, maps channel to group1/2/3/4/5 */
 111         u8 band_index;    /* 0-4, maps channel to band1/2/3/4/5 */
 112         enum ieee80211_band band;
 113
 114         /* HT40 channel info */
 115         s8 ht40_max_power_avg;  /* (dBm) regul. eeprom, normal Tx, any rate */
 116         u8 ht40_flags;          /* flags copied from EEPROM */
 117         u8 ht40_extension_channel; /* HT_IE_EXT_CHANNEL_* */
 118 };
 119
 120 /*
 121  * Minimum number of queues. MAX_NUM is defined in hw specific files.
 122  * Set the minimum to accommodate
 123  *  - 4 standard TX queues
 124  *  - the command queue
 125  *  - 4 PAN TX queues
 126  *  - the PAN multicast queue, and
 127  *  - the AUX (TX during scan dwell) queue.
 128  */
 129 #define IWL_MIN_NUM_QUEUES      11
 130
 131 /*
 132  * Command queue depends on iPAN support.
 133  */
 134 #define IWL_DEFAULT_CMD_QUEUE_NUM       4
 135 #define IWL_IPAN_CMD_QUEUE_NUM          9
 136
 137 #define IEEE80211_DATA_LEN              2304
 138 #define IEEE80211_4ADDR_LEN             30
 139 #define IEEE80211_HLEN                  (IEEE80211_4ADDR_LEN)
 140 #define IEEE80211_FRAME_LEN             (IEEE80211_DATA_LEN + IEEE80211_HLEN)
 141
 142 #define SUP_RATE_11A_MAX_NUM_CHANNELS  8
 143 #define SUP_RATE_11B_MAX_NUM_CHANNELS  4
 144 #define SUP_RATE_11G_MAX_NUM_CHANNELS  12
 145
 146 #define IWL_SUPPORTED_RATES_IE_LEN         8
 147
 148 #define IWL_INVALID_RATE     0xFF
 149 #define IWL_INVALID_VALUE    -1
 150
 151 union iwl_ht_rate_supp {
 152         u16 rates;
 153         struct {
 154                 u8 siso_rate;
 155                 u8 mimo_rate;
 156         };
 157 };
 158
 159 #define CFG_HT_RX_AMPDU_FACTOR_8K   (0x0)
 160 #define CFG_HT_RX_AMPDU_FACTOR_16K  (0x1)
 161 #define CFG_HT_RX_AMPDU_FACTOR_32K  (0x2)
 162 #define CFG_HT_RX_AMPDU_FACTOR_64K  (0x3)
 163 #define CFG_HT_RX_AMPDU_FACTOR_DEF  CFG_HT_RX_AMPDU_FACTOR_64K
 164 #define CFG_HT_RX_AMPDU_FACTOR_MAX  CFG_HT_RX_AMPDU_FACTOR_64K
 165 #define CFG_HT_RX_AMPDU_FACTOR_MIN  CFG_HT_RX_AMPDU_FACTOR_8K
 166
 167 /*
 168  * Maximal MPDU density for TX aggregation
 169  * 4 - 2us density
 170  * 5 - 4us density
 171  * 6 - 8us density
 172  * 7 - 16us density
 173  */
 174 #define CFG_HT_MPDU_DENSITY_2USEC   (0x4)
 175 #define CFG_HT_MPDU_DENSITY_4USEC   (0x5)
 176 #define CFG_HT_MPDU_DENSITY_8USEC   (0x6)
 177 #define CFG_HT_MPDU_DENSITY_16USEC  (0x7)
 178 #define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_4USEC
 179 #define CFG_HT_MPDU_DENSITY_MAX CFG_HT_MPDU_DENSITY_16USEC
 180 #define CFG_HT_MPDU_DENSITY_MIN     (0x1)
 181
 182 struct iwl_ht_config {
 183         bool single_chain_sufficient;
 184         enum ieee80211_smps_mode smps; /* current smps mode */
 185 };
 186
 187 /* QoS structures */
 188 struct iwl_qos_info {
 189         int qos_active;
 190         struct iwl_qosparam_cmd def_qos_parm;
 191 };
 192
 193 /**
 194  * enum iwl_agg_state
 195  *
 196  * The state machine of the BA agreement establishment / tear down.
 197  * These states relate to a specific RA / TID.
 198  *
 199  * @IWL_AGG_OFF: aggregation is not used
 200  * @IWL_AGG_ON: aggregation session is up
 201  * @IWL_EMPTYING_HW_QUEUE_ADDBA: establishing a BA session - waiting for the
 202  *      HW queue to be empty from packets for this RA /TID.
 203  * @IWL_EMPTYING_HW_QUEUE_DELBA: tearing down a BA session - waiting for the
 204  *      HW queue to be empty from packets for this RA /TID.
 205  */
 206 enum iwl_agg_state {
 207         IWL_AGG_OFF = 0,
 208         IWL_AGG_ON,
 209         IWL_EMPTYING_HW_QUEUE_ADDBA,
 210         IWL_EMPTYING_HW_QUEUE_DELBA,
 211 };
 212
 213 /**
 214  * struct iwl_ht_agg - aggregation state machine
 215
 216  * This structs holds the states for the BA agreement establishment and tear
 217  * down. It also holds the state during the BA session itself. This struct is
 218  * duplicated for each RA / TID.
 219
 220  * @rate_n_flags: Rate at which Tx was attempted. Holds the data between the
 221  *      Tx response (REPLY_TX), and the block ack notification
 222  *      (REPLY_COMPRESSED_BA).
 223  * @state: state of the BA agreement establishment / tear down.
 224  * @txq_id: Tx queue used by the BA session - used by the transport layer.
 225  *      Needed by the upper layer for debugfs only.
 226  * @ssn: the first packet to be sent in AGG HW queue in Tx AGG start flow, or
 227  *      the first packet to be sent in legacy HW queue in Tx AGG stop flow.
 228  *      Basically when next_reclaimed reaches ssn, we can tell mac80211 that
 229  *      we are ready to finish the Tx AGG stop / start flow.
 230  * @wait_for_ba: Expect block-ack before next Tx reply
 231  */
 232 struct iwl_ht_agg {
 233         u32 rate_n_flags;
 234         enum iwl_agg_state state;
 235         u16 txq_id;
 236         u16 ssn;
 237         bool wait_for_ba;
 238 };
 239
 240 /**
 241  * struct iwl_tid_data - one for each RA / TID
 242
 243  * This structs holds the states for each RA / TID.
 244
 245  * @seq_number: the next WiFi sequence number to use
 246  * @next_reclaimed: the WiFi sequence number of the next packet to be acked.
 247  *      This is basically (last acked packet++).
 248  * @agg: aggregation state machine
 249  */
 250 struct iwl_tid_data {
 251         u16 seq_number;
 252         u16 next_reclaimed;
 253         struct iwl_ht_agg agg;
 254 };
 255
 256 /*
 257  * Structure should be accessed with sta_lock held. When station addition
 258  * is in progress (IWL_STA_UCODE_INPROGRESS) it is possible to access only
 259  * the commands (iwl_addsta_cmd and iwl_link_quality_cmd) without sta_lock
 260  * held.
 261  */
 262 struct iwl_station_entry {
 263         struct iwl_addsta_cmd sta;
 264         u8 used, ctxid;
 265         struct iwl_link_quality_cmd *lq;
 266 };
 267
 268 /*
 269  * iwl_station_priv: Driver's private station information
 270  *
 271  * When mac80211 creates a station it reserves some space (hw->sta_data_size)
 272  * in the structure for use by driver. This structure is places in that
 273  * space.
 274  */
 275 struct iwl_station_priv {
 276         struct iwl_rxon_context *ctx;
 277         struct iwl_lq_sta lq_sta;
 278         atomic_t pending_frames;
 279         bool client;
 280         bool asleep;
 281         u8 max_agg_bufsize;
 282         u8 sta_id;
 283 };
 284
 285 /**
 286  * struct iwl_vif_priv - driver's private per-interface information
 287  *
 288  * When mac80211 allocates a virtual interface, it can allocate
 289  * space for us to put data into.
 290  */
 291 struct iwl_vif_priv {
 292         struct iwl_rxon_context *ctx;
 293         u8 ibss_bssid_sta_id;
 294 };
 295
 296 struct iwl_sensitivity_ranges {
 297         u16 min_nrg_cck;
 298         u16 max_nrg_cck;
 299
 300         u16 nrg_th_cck;
 301         u16 nrg_th_ofdm;
 302
 303         u16 auto_corr_min_ofdm;
 304         u16 auto_corr_min_ofdm_mrc;
 305         u16 auto_corr_min_ofdm_x1;
 306         u16 auto_corr_min_ofdm_mrc_x1;
 307
 308         u16 auto_corr_max_ofdm;
 309         u16 auto_corr_max_ofdm_mrc;
 310         u16 auto_corr_max_ofdm_x1;
 311         u16 auto_corr_max_ofdm_mrc_x1;
 312
 313         u16 auto_corr_max_cck;
 314         u16 auto_corr_max_cck_mrc;
 315         u16 auto_corr_min_cck;
 316         u16 auto_corr_min_cck_mrc;
 317
 318         u16 barker_corr_th_min;
 319         u16 barker_corr_th_min_mrc;
 320         u16 nrg_th_cca;
 321 };
 322
 323
 324 #define KELVIN_TO_CELSIUS(x) ((x)-273)
 325 #define CELSIUS_TO_KELVIN(x) ((x)+273)
 326
 327
 328 /******************************************************************************
 329  *
 330  * Functions implemented in core module which are forward declared here
 331  * for use by iwl-[4-5].c
 332  *
 333  * NOTE:  The implementation of these functions are not hardware specific
 334  * which is why they are in the core module files.
 335  *
 336  * Naming convention --
 337  * iwl_         <-- Is part of iwlwifi
 338  * iwlXXXX_     <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
 339  *
 340  ****************************************************************************/
 341 extern void iwl_update_chain_flags(struct iwl_priv *priv);
 342 extern const u8 iwl_bcast_addr[ETH_ALEN];
 343
 344 #define IWL_OPERATION_MODE_AUTO     0
 345 #define IWL_OPERATION_MODE_HT_ONLY  1
 346 #define IWL_OPERATION_MODE_MIXED    2
 347 #define IWL_OPERATION_MODE_20MHZ    3
 348
 349 #define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
 350
 351 /* Sensitivity and chain noise calibration */
 352 #define INITIALIZATION_VALUE            0xFFFF
 353 #define IWL_CAL_NUM_BEACONS             16
 354 #define MAXIMUM_ALLOWED_PATHLOSS        15
 355
 356 #define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
 357
 358 #define MAX_FA_OFDM  50
 359 #define MIN_FA_OFDM  5
 360 #define MAX_FA_CCK   50
 361 #define MIN_FA_CCK   5
 362
 363 #define AUTO_CORR_STEP_OFDM       1
 364
 365 #define AUTO_CORR_STEP_CCK     3
 366 #define AUTO_CORR_MAX_TH_CCK   160
 367
 368 #define NRG_DIFF               2
 369 #define NRG_STEP_CCK           2
 370 #define NRG_MARGIN             8
 371 #define MAX_NUMBER_CCK_NO_FA 100
 372
 373 #define AUTO_CORR_CCK_MIN_VAL_DEF    (125)
 374
 375 #define CHAIN_A             0
 376 #define CHAIN_B             1
 377 #define CHAIN_C             2
 378 #define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
 379 #define ALL_BAND_FILTER                 0xFF00
 380 #define IN_BAND_FILTER                  0xFF
 381 #define MIN_AVERAGE_NOISE_MAX_VALUE     0xFFFFFFFF
 382
 383 #define NRG_NUM_PREV_STAT_L     20
 384 #define NUM_RX_CHAINS           3
 385
 386 enum iwlagn_false_alarm_state {
 387         IWL_FA_TOO_MANY = 0,
 388         IWL_FA_TOO_FEW = 1,
 389         IWL_FA_GOOD_RANGE = 2,
 390 };
 391
 392 enum iwlagn_chain_noise_state {
 393         IWL_CHAIN_NOISE_ALIVE = 0,  /* must be 0 */
 394         IWL_CHAIN_NOISE_ACCUMULATE,
 395         IWL_CHAIN_NOISE_CALIBRATED,
 396         IWL_CHAIN_NOISE_DONE,
 397 };
 398
 399 /* Sensitivity calib data */
 400 struct iwl_sensitivity_data {
 401         u32 auto_corr_ofdm;
 402         u32 auto_corr_ofdm_mrc;
 403         u32 auto_corr_ofdm_x1;
 404         u32 auto_corr_ofdm_mrc_x1;
 405         u32 auto_corr_cck;
 406         u32 auto_corr_cck_mrc;
 407
 408         u32 last_bad_plcp_cnt_ofdm;
 409         u32 last_fa_cnt_ofdm;
 410         u32 last_bad_plcp_cnt_cck;
 411         u32 last_fa_cnt_cck;
 412
 413         u32 nrg_curr_state;
 414         u32 nrg_prev_state;
 415         u32 nrg_value[10];
 416         u8  nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
 417         u32 nrg_silence_ref;
 418         u32 nrg_energy_idx;
 419         u32 nrg_silence_idx;
 420         u32 nrg_th_cck;
 421         s32 nrg_auto_corr_silence_diff;
 422         u32 num_in_cck_no_fa;
 423         u32 nrg_th_ofdm;
 424
 425         u16 barker_corr_th_min;
 426         u16 barker_corr_th_min_mrc;
 427         u16 nrg_th_cca;
 428 };
 429
 430 /* Chain noise (differential Rx gain) calib data */
 431 struct iwl_chain_noise_data {
 432         u32 active_chains;
 433         u32 chain_noise_a;
 434         u32 chain_noise_b;
 435         u32 chain_noise_c;
 436         u32 chain_signal_a;
 437         u32 chain_signal_b;
 438         u32 chain_signal_c;
 439         u16 beacon_count;
 440         u8 disconn_array[NUM_RX_CHAINS];
 441         u8 delta_gain_code[NUM_RX_CHAINS];
 442         u8 radio_write;
 443         u8 state;
 444 };
 445
 446 enum {
 447         MEASUREMENT_READY = (1 << 0),
 448         MEASUREMENT_ACTIVE = (1 << 1),
 449 };
 450
 451 enum iwl_nvm_type {
 452         NVM_DEVICE_TYPE_EEPROM = 0,
 453         NVM_DEVICE_TYPE_OTP,
 454 };
 455
 456 /*
 457  * Two types of OTP memory access modes
 458  *   IWL_OTP_ACCESS_ABSOLUTE - absolute address mode,
 459  *                              based on physical memory addressing
 460  *   IWL_OTP_ACCESS_RELATIVE - relative address mode,
 461  *                             based on logical memory addressing
 462  */
 463 enum iwl_access_mode {
 464         IWL_OTP_ACCESS_ABSOLUTE,
 465         IWL_OTP_ACCESS_RELATIVE,
 466 };
 467
 468 /* reply_tx_statistics (for _agn devices) */
 469 struct reply_tx_error_statistics {
 470         u32 pp_delay;
 471         u32 pp_few_bytes;
 472         u32 pp_bt_prio;
 473         u32 pp_quiet_period;
 474         u32 pp_calc_ttak;
 475         u32 int_crossed_retry;
 476         u32 short_limit;
 477         u32 long_limit;
 478         u32 fifo_underrun;
 479         u32 drain_flow;
 480         u32 rfkill_flush;
 481         u32 life_expire;
 482         u32 dest_ps;
 483         u32 host_abort;
 484         u32 bt_retry;
 485         u32 sta_invalid;
 486         u32 frag_drop;
 487         u32 tid_disable;
 488         u32 fifo_flush;
 489         u32 insuff_cf_poll;
 490         u32 fail_hw_drop;
 491         u32 sta_color_mismatch;
 492         u32 unknown;
 493 };
 494
 495 /* reply_agg_tx_statistics (for _agn devices) */
 496 struct reply_agg_tx_error_statistics {
 497         u32 underrun;
 498         u32 bt_prio;
 499         u32 few_bytes;
 500         u32 abort;
 501         u32 last_sent_ttl;
 502         u32 last_sent_try;
 503         u32 last_sent_bt_kill;
 504         u32 scd_query;
 505         u32 bad_crc32;
 506         u32 response;
 507         u32 dump_tx;
 508         u32 delay_tx;
 509         u32 unknown;
 510 };
 511
 512 /* management statistics */
 513 enum iwl_mgmt_stats {
 514         MANAGEMENT_ASSOC_REQ = 0,
 515         MANAGEMENT_ASSOC_RESP,
 516         MANAGEMENT_REASSOC_REQ,
 517         MANAGEMENT_REASSOC_RESP,
 518         MANAGEMENT_PROBE_REQ,
 519         MANAGEMENT_PROBE_RESP,
 520         MANAGEMENT_BEACON,
 521         MANAGEMENT_ATIM,
 522         MANAGEMENT_DISASSOC,
 523         MANAGEMENT_AUTH,
 524         MANAGEMENT_DEAUTH,
 525         MANAGEMENT_ACTION,
 526         MANAGEMENT_MAX,
 527 };
 528 /* control statistics */
 529 enum iwl_ctrl_stats {
 530         CONTROL_BACK_REQ =  0,
 531         CONTROL_BACK,
 532         CONTROL_PSPOLL,
 533         CONTROL_RTS,
 534         CONTROL_CTS,
 535         CONTROL_ACK,
 536         CONTROL_CFEND,
 537         CONTROL_CFENDACK,
 538         CONTROL_MAX,
 539 };
 540
 541 struct traffic_stats {
 542 #ifdef CONFIG_IWLWIFI_DEBUGFS
 543         u32 mgmt[MANAGEMENT_MAX];
 544         u32 ctrl[CONTROL_MAX];
 545         u32 data_cnt;
 546         u64 data_bytes;
 547 #endif
 548 };
 549
 550 /*
 551  * schedule the timer to wake up every UCODE_TRACE_PERIOD milliseconds
 552  * to perform continuous uCode event logging operation if enabled
 553  */
 554 #define UCODE_TRACE_PERIOD (10)
 555
 556 /*
 557  * iwl_event_log: current uCode event log position
 558  *
 559  * @ucode_trace: enable/disable ucode continuous trace timer
 560  * @num_wraps: how many times the event buffer wraps
 561  * @next_entry:  the entry just before the next one that uCode would fill
 562  * @non_wraps_count: counter for no wrap detected when dump ucode events
 563  * @wraps_once_count: counter for wrap once detected when dump ucode events
 564  * @wraps_more_count: counter for wrap more than once detected
 565  *                    when dump ucode events
 566  */
 567 struct iwl_event_log {
 568         bool ucode_trace;
 569         u32 num_wraps;
 570         u32 next_entry;
 571         int non_wraps_count;
 572         int wraps_once_count;
 573         int wraps_more_count;
 574 };
 575
 576 /*
 577  * This is the threshold value of plcp error rate per 100mSecs.  It is
 578  * used to set and check for the validity of plcp_delta.
 579  */
 580 #define IWL_MAX_PLCP_ERR_THRESHOLD_MIN  (1)
 581 #define IWL_MAX_PLCP_ERR_THRESHOLD_DEF  (50)
 582 #define IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF     (100)
 583 #define IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF (200)
 584 #define IWL_MAX_PLCP_ERR_THRESHOLD_MAX  (255)
 585 #define IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE      (0)
 586
 587 #define IWL_DELAY_NEXT_FORCE_RF_RESET  (HZ*3)
 588 #define IWL_DELAY_NEXT_FORCE_FW_RELOAD (HZ*5)
 589
 590 /* TX queue watchdog timeouts in mSecs */
 591 #define IWL_DEF_WD_TIMEOUT      (2000)
 592 #define IWL_LONG_WD_TIMEOUT     (10000)
 593 #define IWL_MAX_WD_TIMEOUT      (120000)
 594
 595 /* BT Antenna Coupling Threshold (dB) */
 596 #define IWL_BT_ANTENNA_COUPLING_THRESHOLD       (35)
 597
 598 /* Firmware reload counter and Timestamp */
 599 #define IWL_MIN_RELOAD_DURATION         1000 /* 1000 ms */
 600 #define IWL_MAX_CONTINUE_RELOAD_CNT     4
 601
 602
 603 enum iwl_reset {
 604         IWL_RF_RESET = 0,
 605         IWL_FW_RESET,
 606         IWL_MAX_FORCE_RESET,
 607 };
 608
 609 struct iwl_force_reset {
 610         int reset_request_count;
 611         int reset_success_count;
 612         int reset_reject_count;
 613         unsigned long reset_duration;
 614         unsigned long last_force_reset_jiffies;
 615 };
 616
 617 /* extend beacon time format bit shifting  */
 618 /*
 619  * for _agn devices
 620  * bits 31:22 - extended
 621  * bits 21:0  - interval
 622  */
 623 #define IWLAGN_EXT_BEACON_TIME_POS      22
 624
 625 struct iwl_rxon_context {
 626         struct ieee80211_vif *vif;
 627
 628         /*
 629          * We could use the vif to indicate active, but we
 630          * also need it to be active during disabling when
 631          * we already removed the vif for type setting.
 632          */
 633         bool always_active, is_active;
 634
 635         bool ht_need_multiple_chains;
 636
 637         enum iwl_rxon_context_id ctxid;
 638
 639         u32 interface_modes, exclusive_interface_modes;
 640         u8 unused_devtype, ap_devtype, ibss_devtype, station_devtype;
 641
 642         /*
 643          * We declare this const so it can only be
 644          * changed via explicit cast within the
 645          * routines that actually update the physical
 646          * hardware.
 647          */
 648         const struct iwl_rxon_cmd active;
 649         struct iwl_rxon_cmd staging;
 650
 651         struct iwl_rxon_time_cmd timing;
 652
 653         struct iwl_qos_info qos_data;
 654
 655         u8 bcast_sta_id, ap_sta_id;
 656
 657         u8 rxon_cmd, rxon_assoc_cmd, rxon_timing_cmd;
 658         u8 qos_cmd;
 659         u8 wep_key_cmd;
 660
 661         struct iwl_wep_key wep_keys[WEP_KEYS_MAX];
 662         u8 key_mapping_keys;
 663
 664         __le32 station_flags;
 665
 666         int beacon_int;
 667
 668         struct {
 669                 bool non_gf_sta_present;
 670                 u8 protection;
 671                 bool enabled, is_40mhz;
 672                 u8 extension_chan_offset;
 673         } ht;
 674
 675         bool last_tx_rejected;
 676 };
 677
 678 enum iwl_scan_type {
 679         IWL_SCAN_NORMAL,
 680         IWL_SCAN_RADIO_RESET,
 681         IWL_SCAN_ROC,
 682 };
 683
 684 #ifdef CONFIG_IWLWIFI_DEVICE_TESTMODE
 685 struct iwl_testmode_trace {
 686         u32 buff_size;
 687         u32 total_size;
 688         u32 num_chunks;
 689         u8 *cpu_addr;
 690         u8 *trace_addr;
 691         dma_addr_t dma_addr;
 692         bool trace_enabled;
 693 };
 694 struct iwl_testmode_mem {
 695         u32 buff_size;
 696         u32 num_chunks;
 697         u8 *buff_addr;
 698         bool read_in_progress;
 699 };
 700 #endif
 701
 702 struct iwl_wipan_noa_data {
 703         struct rcu_head rcu_head;
 704         u32 length;
 705         u8 data[];
 706 };
 707
 708 #define IWL_OP_MODE_GET_DVM(_iwl_op_mode) \
 709         ((struct iwl_priv *) ((_iwl_op_mode)->op_mode_specific))
 710
 711 #define IWL_MAC80211_GET_DVM(_hw) \
 712         ((struct iwl_priv *) ((struct iwl_op_mode *) \
 713         (_hw)->priv)->op_mode_specific)
 714
 715 struct iwl_priv {
 716
 717         /*data shared among all the driver's layers */
 718         struct iwl_shared *shrd;
 719         const struct iwl_fw *fw;
 720
 721         spinlock_t sta_lock;
 722         struct mutex mutex;
 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         struct kmem_cache *tx_cmd_pool;
 729
 730         struct list_head calib_results;
 731
 732         struct workqueue_struct *workqueue;
 733
 734         enum ieee80211_band band;
 735
 736         void (*pre_rx_handler)(struct iwl_priv *priv,
 737                                struct iwl_rx_cmd_buffer *rxb);
 738         int (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
 739                                        struct iwl_rx_cmd_buffer *rxb,
 740                                        struct iwl_device_cmd *cmd);
 741
 742         struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
 743
 744         /* spectrum measurement report caching */
 745         struct iwl_spectrum_notification measure_report;
 746         u8 measurement_status;
 747
 748         /* ucode beacon time */
 749         u32 ucode_beacon_time;
 750         int missed_beacon_threshold;
 751
 752         /* track IBSS manager (last beacon) status */
 753         u32 ibss_manager;
 754
 755         /* jiffies when last recovery from statistics was performed */
 756         unsigned long rx_statistics_jiffies;
 757
 758         /*counters */
 759         u32 rx_handlers_stats[REPLY_MAX];
 760
 761         /* force reset */
 762         struct iwl_force_reset force_reset[IWL_MAX_FORCE_RESET];
 763
 764         /* firmware reload counter and timestamp */
 765         unsigned long reload_jiffies;
 766         int reload_count;
 767
 768         /* we allocate array of iwl_channel_info for NIC's valid channels.
 769          *    Access via channel # using indirect index array */
 770         struct iwl_channel_info *channel_info;  /* channel info array */
 771         u8 channel_count;       /* # of channels */
 772
 773         /* thermal calibration */
 774         s32 temperature;        /* Celsius */
 775         s32 last_temperature;
 776
 777         struct iwl_wipan_noa_data __rcu *noa_data;
 778
 779         /* Scan related variables */
 780         unsigned long scan_start;
 781         unsigned long scan_start_tsf;
 782         void *scan_cmd;
 783         enum ieee80211_band scan_band;
 784         struct cfg80211_scan_request *scan_request;
 785         struct ieee80211_vif *scan_vif;
 786         enum iwl_scan_type scan_type;
 787         u8 scan_tx_ant[IEEE80211_NUM_BANDS];
 788         u8 mgmt_tx_ant;
 789
 790         /* max number of station keys */
 791         u8 sta_key_max_num;
 792
 793         bool new_scan_threshold_behaviour;
 794
 795         bool wowlan;
 796
 797         /* EEPROM MAC addresses */
 798         struct mac_address addresses[2];
 799
 800         struct iwl_rxon_context contexts[NUM_IWL_RXON_CTX];
 801
 802         __le16 switch_channel;
 803
 804         u16 active_rate;
 805
 806         u8 start_calib;
 807         struct iwl_sensitivity_data sensitivity_data;
 808         struct iwl_chain_noise_data chain_noise_data;
 809         __le16 sensitivity_tbl[HD_TABLE_SIZE];
 810         __le16 enhance_sensitivity_tbl[ENHANCE_HD_TABLE_ENTRIES];
 811
 812         struct iwl_ht_config current_ht_config;
 813
 814         /* Rate scaling data */
 815         u8 retry_rate;
 816
 817         int activity_timer_active;
 818
 819         /* counts mgmt, ctl, and data packets */
 820         struct traffic_stats tx_stats;
 821         struct traffic_stats rx_stats;
 822
 823         struct iwl_power_mgr power_data;
 824         struct iwl_tt_mgmt thermal_throttle;
 825
 826         /* station table variables */
 827         int num_stations;
 828         struct iwl_station_entry stations[IWLAGN_STATION_COUNT];
 829         unsigned long ucode_key_table;
 830         struct iwl_tid_data tid_data[IWLAGN_STATION_COUNT][IWL_MAX_TID_COUNT];
 831
 832         u8 mac80211_registered;
 833
 834         /* Indication if ieee80211_ops->open has been called */
 835         u8 is_open;
 836
 837         enum nl80211_iftype iw_mode;
 838
 839         /* Last Rx'd beacon timestamp */
 840         u64 timestamp;
 841
 842         struct {
 843                 __le32 flag;
 844                 struct statistics_general_common common;
 845                 struct statistics_rx_non_phy rx_non_phy;
 846                 struct statistics_rx_phy rx_ofdm;
 847                 struct statistics_rx_ht_phy rx_ofdm_ht;
 848                 struct statistics_rx_phy rx_cck;
 849                 struct statistics_tx tx;
 850 #ifdef CONFIG_IWLWIFI_DEBUGFS
 851                 struct statistics_bt_activity bt_activity;
 852                 __le32 num_bt_kills, accum_num_bt_kills;
 853 #endif
 854                 spinlock_t lock;
 855         } statistics;
 856 #ifdef CONFIG_IWLWIFI_DEBUGFS
 857         struct {
 858                 struct statistics_general_common common;
 859                 struct statistics_rx_non_phy rx_non_phy;
 860                 struct statistics_rx_phy rx_ofdm;
 861                 struct statistics_rx_ht_phy rx_ofdm_ht;
 862                 struct statistics_rx_phy rx_cck;
 863                 struct statistics_tx tx;
 864                 struct statistics_bt_activity bt_activity;
 865         } accum_stats, delta_stats, max_delta_stats;
 866 #endif
 867
 868         /*
 869          * reporting the number of tids has AGG on. 0 means
 870          * no AGGREGATION
 871          */
 872         u8 agg_tids_count;
 873
 874         struct iwl_rx_phy_res last_phy_res;
 875         bool last_phy_res_valid;
 876
 877         /*
 878          * chain noise reset and gain commands are the
 879          * two extra calibration commands follows the standard
 880          * phy calibration commands
 881          */
 882         u8 phy_calib_chain_noise_reset_cmd;
 883         u8 phy_calib_chain_noise_gain_cmd;
 884
 885         /* counts reply_tx error */
 886         struct reply_tx_error_statistics reply_tx_stats;
 887         struct reply_agg_tx_error_statistics reply_agg_tx_stats;
 888
 889         /* remain-on-channel offload support */
 890         struct ieee80211_channel *hw_roc_channel;
 891         struct delayed_work hw_roc_disable_work;
 892         enum nl80211_channel_type hw_roc_chantype;
 893         int hw_roc_duration;
 894         bool hw_roc_setup, hw_roc_start_notified;
 895
 896         /* bt coex */
 897         u8 bt_enable_flag;
 898         u8 bt_status;
 899         u8 bt_traffic_load, last_bt_traffic_load;
 900         bool bt_ch_announce;
 901         bool bt_full_concurrent;
 902         bool bt_ant_couple_ok;
 903         __le32 kill_ack_mask;
 904         __le32 kill_cts_mask;
 905         __le16 bt_valid;
 906         u16 bt_on_thresh;
 907         u16 bt_duration;
 908         u16 dynamic_frag_thresh;
 909         u8 bt_ci_compliance;
 910         struct work_struct bt_traffic_change_work;
 911         bool bt_enable_pspoll;
 912         struct iwl_rxon_context *cur_rssi_ctx;
 913         bool bt_is_sco;
 914
 915         struct work_struct restart;
 916         struct work_struct scan_completed;
 917         struct work_struct abort_scan;
 918
 919         struct work_struct beacon_update;
 920         struct iwl_rxon_context *beacon_ctx;
 921         struct sk_buff *beacon_skb;
 922         void *beacon_cmd;
 923
 924         struct work_struct tt_work;
 925         struct work_struct ct_enter;
 926         struct work_struct ct_exit;
 927         struct work_struct start_internal_scan;
 928         struct work_struct tx_flush;
 929         struct work_struct bt_full_concurrency;
 930         struct work_struct bt_runtime_config;
 931
 932         struct delayed_work scan_check;
 933
 934         /* TX Power */
 935         s8 tx_power_user_lmt;
 936         s8 tx_power_device_lmt;
 937         s8 tx_power_lmt_in_half_dbm; /* max tx power in half-dBm format */
 938         s8 tx_power_next;
 939
 940 #ifdef CONFIG_IWLWIFI_DEBUGFS
 941         /* debugfs */
 942         u16 tx_traffic_idx;
 943         u16 rx_traffic_idx;
 944         u8 *tx_traffic;
 945         u8 *rx_traffic;
 946         struct dentry *debugfs_dir;
 947         u32 dbgfs_sram_offset, dbgfs_sram_len;
 948         bool disable_ht40;
 949         void *wowlan_sram;
 950 #endif /* CONFIG_IWLWIFI_DEBUGFS */
 951
 952         struct work_struct txpower_work;
 953         u32 disable_sens_cal;
 954         u32 disable_chain_noise_cal;
 955         struct work_struct run_time_calib_work;
 956         struct timer_list statistics_periodic;
 957         struct timer_list ucode_trace;
 958         struct timer_list watchdog;
 959
 960         struct iwl_event_log event_log;
 961
 962         struct led_classdev led;
 963         unsigned long blink_on, blink_off;
 964         bool led_registered;
 965 #ifdef CONFIG_IWLWIFI_DEVICE_TESTMODE
 966         struct iwl_testmode_trace testmode_trace;
 967         struct iwl_testmode_mem testmode_mem;
 968         u32 tm_fixed_rate;
 969 #endif
 970
 971         /* WoWLAN GTK rekey data */
 972         u8 kck[NL80211_KCK_LEN], kek[NL80211_KEK_LEN];
 973         __le64 replay_ctr;
 974         __le16 last_seq_ctl;
 975         bool have_rekey_data;
 976 }; /*iwl_priv */
 977
 978 extern struct iwl_mod_params iwlagn_mod_params;
 979
 980 static inline struct iwl_rxon_context *
 981 iwl_rxon_ctx_from_vif(struct ieee80211_vif *vif)
 982 {
 983         struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
 984
 985         return vif_priv->ctx;
 986 }
 987
 988 #define for_each_context(priv, ctx)                             \
 989         for (ctx = &priv->contexts[IWL_RXON_CTX_BSS];           \
 990              ctx < &priv->contexts[NUM_IWL_RXON_CTX]; ctx++)    \
 991                 if (priv->shrd->valid_contexts & BIT(ctx->ctxid))
 992
 993 static inline int iwl_is_associated_ctx(struct iwl_rxon_context *ctx)
 994 {
 995         return (ctx->active.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
 996 }
 997
 998 static inline int iwl_is_associated(struct iwl_priv *priv,
 999                                     enum iwl_rxon_context_id ctxid)
1000 {
1001         return iwl_is_associated_ctx(&priv->contexts[ctxid]);
1002 }
1003
1004 static inline int iwl_is_any_associated(struct iwl_priv *priv)
1005 {
1006         struct iwl_rxon_context *ctx;
1007         for_each_context(priv, ctx)
1008                 if (iwl_is_associated_ctx(ctx))
1009                         return true;
1010         return false;
1011 }
1012
1013 static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
1014 {
1015         if (ch_info == NULL)
1016                 return 0;
1017         return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
1018 }
1019
1020 static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
1021 {
1022         return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
1023 }
1024
1025 static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
1026 {
1027         return ch_info->band == IEEE80211_BAND_5GHZ;
1028 }
1029
1030 static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
1031 {
1032         return ch_info->band == IEEE80211_BAND_2GHZ;
1033 }
1034
1035 static inline int is_channel_passive(const struct iwl_channel_info *ch)
1036 {
1037         return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1038 }
1039
1040 static inline int is_channel_ibss(const struct iwl_channel_info *ch)
1041 {
1042         return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1043 }
1044
1045 #endif                          /* __iwl_dev_h__ */