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

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2003 - 2011 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 <net/ieee80211_radiotap.h>
  40
  41 #include "iwl-eeprom.h"
  42 #include "iwl-csr.h"
  43 #include "iwl-prph.h"
  44 #include "iwl-debug.h"
  45 #include "iwl-agn-hw.h"
  46 #include "iwl-led.h"
  47 #include "iwl-power.h"
  48 #include "iwl-agn-rs.h"
  49 #include "iwl-agn-tt.h"
  50 #include "iwl-bus.h"
  51 #include "iwl-trans.h"
  52 #include "iwl-shared.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  * Structure should be accessed with sta_lock held. When station addition
 194  * is in progress (IWL_STA_UCODE_INPROGRESS) it is possible to access only
 195  * the commands (iwl_addsta_cmd and iwl_link_quality_cmd) without sta_lock
 196  * held.
 197  */
 198 struct iwl_station_entry {
 199         struct iwl_addsta_cmd sta;
 200         u8 used, ctxid;
 201         struct iwl_link_quality_cmd *lq;
 202 };
 203
 204 /*
 205  * iwl_station_priv: Driver's private station information
 206  *
 207  * When mac80211 creates a station it reserves some space (hw->sta_data_size)
 208  * in the structure for use by driver. This structure is places in that
 209  * space.
 210  */
 211 struct iwl_station_priv {
 212         struct iwl_rxon_context *ctx;
 213         struct iwl_lq_sta lq_sta;
 214         atomic_t pending_frames;
 215         bool client;
 216         bool asleep;
 217         u8 max_agg_bufsize;
 218         u8 sta_id;
 219 };
 220
 221 /**
 222  * struct iwl_vif_priv - driver's private per-interface information
 223  *
 224  * When mac80211 allocates a virtual interface, it can allocate
 225  * space for us to put data into.
 226  */
 227 struct iwl_vif_priv {
 228         struct iwl_rxon_context *ctx;
 229         u8 ibss_bssid_sta_id;
 230 };
 231
 232 /* v1/v2 uCode file layout */
 233 struct iwl_ucode_header {
 234         __le32 ver;     /* major/minor/API/serial */
 235         union {
 236                 struct {
 237                         __le32 inst_size;       /* bytes of runtime code */
 238                         __le32 data_size;       /* bytes of runtime data */
 239                         __le32 init_size;       /* bytes of init code */
 240                         __le32 init_data_size;  /* bytes of init data */
 241                         __le32 boot_size;       /* bytes of bootstrap code */
 242                         u8 data[0];             /* in same order as sizes */
 243                 } v1;
 244                 struct {
 245                         __le32 build;           /* build number */
 246                         __le32 inst_size;       /* bytes of runtime code */
 247                         __le32 data_size;       /* bytes of runtime data */
 248                         __le32 init_size;       /* bytes of init code */
 249                         __le32 init_data_size;  /* bytes of init data */
 250                         __le32 boot_size;       /* bytes of bootstrap code */
 251                         u8 data[0];             /* in same order as sizes */
 252                 } v2;
 253         } u;
 254 };
 255
 256 /*
 257  * new TLV uCode file layout
 258  *
 259  * The new TLV file format contains TLVs, that each specify
 260  * some piece of data. To facilitate "groups", for example
 261  * different instruction image with different capabilities,
 262  * bundled with the same init image, an alternative mechanism
 263  * is provided:
 264  * When the alternative field is 0, that means that the item
 265  * is always valid. When it is non-zero, then it is only
 266  * valid in conjunction with items of the same alternative,
 267  * in which case the driver (user) selects one alternative
 268  * to use.
 269  */
 270
 271 enum iwl_ucode_tlv_type {
 272         IWL_UCODE_TLV_INVALID           = 0, /* unused */
 273         IWL_UCODE_TLV_INST              = 1,
 274         IWL_UCODE_TLV_DATA              = 2,
 275         IWL_UCODE_TLV_INIT              = 3,
 276         IWL_UCODE_TLV_INIT_DATA         = 4,
 277         IWL_UCODE_TLV_BOOT              = 5,
 278         IWL_UCODE_TLV_PROBE_MAX_LEN     = 6, /* a u32 value */
 279         IWL_UCODE_TLV_PAN               = 7,
 280         IWL_UCODE_TLV_RUNT_EVTLOG_PTR   = 8,
 281         IWL_UCODE_TLV_RUNT_EVTLOG_SIZE  = 9,
 282         IWL_UCODE_TLV_RUNT_ERRLOG_PTR   = 10,
 283         IWL_UCODE_TLV_INIT_EVTLOG_PTR   = 11,
 284         IWL_UCODE_TLV_INIT_EVTLOG_SIZE  = 12,
 285         IWL_UCODE_TLV_INIT_ERRLOG_PTR   = 13,
 286         IWL_UCODE_TLV_ENHANCE_SENS_TBL  = 14,
 287         IWL_UCODE_TLV_PHY_CALIBRATION_SIZE = 15,
 288         IWL_UCODE_TLV_WOWLAN_INST       = 16,
 289         IWL_UCODE_TLV_WOWLAN_DATA       = 17,
 290         IWL_UCODE_TLV_FLAGS             = 18,
 291 };
 292
 293 /**
 294  * enum iwl_ucode_tlv_flag - ucode API flags
 295  * @IWL_UCODE_TLV_FLAGS_PAN: This is PAN capable microcode; this previously
 296  *      was a separate TLV but moved here to save space.
 297  * @IWL_UCODE_TLV_FLAGS_NEWSCAN: new uCode scan behaviour on hidden SSID,
 298  *      treats good CRC threshold as a boolean
 299  * @IWL_UCODE_TLV_FLAGS_MFP: This uCode image supports MFP (802.11w).
 300  * @IWL_UCODE_TLV_FLAGS_P2P: This uCode image supports P2P.
 301  */
 302 enum iwl_ucode_tlv_flag {
 303         IWL_UCODE_TLV_FLAGS_PAN         = BIT(0),
 304         IWL_UCODE_TLV_FLAGS_NEWSCAN     = BIT(1),
 305         IWL_UCODE_TLV_FLAGS_MFP         = BIT(2),
 306         IWL_UCODE_TLV_FLAGS_P2P         = BIT(3),
 307 };
 308
 309 struct iwl_ucode_tlv {
 310         __le16 type;            /* see above */
 311         __le16 alternative;     /* see comment */
 312         __le32 length;          /* not including type/length fields */
 313         u8 data[0];
 314 } __packed;
 315
 316 #define IWL_TLV_UCODE_MAGIC     0x0a4c5749
 317
 318 struct iwl_tlv_ucode_header {
 319         /*
 320          * The TLV style ucode header is distinguished from
 321          * the v1/v2 style header by first four bytes being
 322          * zero, as such is an invalid combination of
 323          * major/minor/API/serial versions.
 324          */
 325         __le32 zero;
 326         __le32 magic;
 327         u8 human_readable[64];
 328         __le32 ver;             /* major/minor/API/serial */
 329         __le32 build;
 330         __le64 alternatives;    /* bitmask of valid alternatives */
 331         /*
 332          * The data contained herein has a TLV layout,
 333          * see above for the TLV header and types.
 334          * Note that each TLV is padded to a length
 335          * that is a multiple of 4 for alignment.
 336          */
 337         u8 data[0];
 338 };
 339
 340 struct iwl_sensitivity_ranges {
 341         u16 min_nrg_cck;
 342         u16 max_nrg_cck;
 343
 344         u16 nrg_th_cck;
 345         u16 nrg_th_ofdm;
 346
 347         u16 auto_corr_min_ofdm;
 348         u16 auto_corr_min_ofdm_mrc;
 349         u16 auto_corr_min_ofdm_x1;
 350         u16 auto_corr_min_ofdm_mrc_x1;
 351
 352         u16 auto_corr_max_ofdm;
 353         u16 auto_corr_max_ofdm_mrc;
 354         u16 auto_corr_max_ofdm_x1;
 355         u16 auto_corr_max_ofdm_mrc_x1;
 356
 357         u16 auto_corr_max_cck;
 358         u16 auto_corr_max_cck_mrc;
 359         u16 auto_corr_min_cck;
 360         u16 auto_corr_min_cck_mrc;
 361
 362         u16 barker_corr_th_min;
 363         u16 barker_corr_th_min_mrc;
 364         u16 nrg_th_cca;
 365 };
 366
 367
 368 #define KELVIN_TO_CELSIUS(x) ((x)-273)
 369 #define CELSIUS_TO_KELVIN(x) ((x)+273)
 370
 371
 372 /******************************************************************************
 373  *
 374  * Functions implemented in core module which are forward declared here
 375  * for use by iwl-[4-5].c
 376  *
 377  * NOTE:  The implementation of these functions are not hardware specific
 378  * which is why they are in the core module files.
 379  *
 380  * Naming convention --
 381  * iwl_         <-- Is part of iwlwifi
 382  * iwlXXXX_     <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
 383  *
 384  ****************************************************************************/
 385 extern void iwl_update_chain_flags(struct iwl_priv *priv);
 386 extern const u8 iwl_bcast_addr[ETH_ALEN];
 387
 388 #define IWL_OPERATION_MODE_AUTO     0
 389 #define IWL_OPERATION_MODE_HT_ONLY  1
 390 #define IWL_OPERATION_MODE_MIXED    2
 391 #define IWL_OPERATION_MODE_20MHZ    3
 392
 393 #define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
 394
 395 /* Sensitivity and chain noise calibration */
 396 #define INITIALIZATION_VALUE            0xFFFF
 397 #define IWL_CAL_NUM_BEACONS             16
 398 #define MAXIMUM_ALLOWED_PATHLOSS        15
 399
 400 #define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
 401
 402 #define MAX_FA_OFDM  50
 403 #define MIN_FA_OFDM  5
 404 #define MAX_FA_CCK   50
 405 #define MIN_FA_CCK   5
 406
 407 #define AUTO_CORR_STEP_OFDM       1
 408
 409 #define AUTO_CORR_STEP_CCK     3
 410 #define AUTO_CORR_MAX_TH_CCK   160
 411
 412 #define NRG_DIFF               2
 413 #define NRG_STEP_CCK           2
 414 #define NRG_MARGIN             8
 415 #define MAX_NUMBER_CCK_NO_FA 100
 416
 417 #define AUTO_CORR_CCK_MIN_VAL_DEF    (125)
 418
 419 #define CHAIN_A             0
 420 #define CHAIN_B             1
 421 #define CHAIN_C             2
 422 #define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
 423 #define ALL_BAND_FILTER                 0xFF00
 424 #define IN_BAND_FILTER                  0xFF
 425 #define MIN_AVERAGE_NOISE_MAX_VALUE     0xFFFFFFFF
 426
 427 #define NRG_NUM_PREV_STAT_L     20
 428 #define NUM_RX_CHAINS           3
 429
 430 enum iwlagn_false_alarm_state {
 431         IWL_FA_TOO_MANY = 0,
 432         IWL_FA_TOO_FEW = 1,
 433         IWL_FA_GOOD_RANGE = 2,
 434 };
 435
 436 enum iwlagn_chain_noise_state {
 437         IWL_CHAIN_NOISE_ALIVE = 0,  /* must be 0 */
 438         IWL_CHAIN_NOISE_ACCUMULATE,
 439         IWL_CHAIN_NOISE_CALIBRATED,
 440         IWL_CHAIN_NOISE_DONE,
 441 };
 442
 443
 444 /* Opaque calibration results */
 445 struct iwl_calib_result {
 446         struct list_head list;
 447         size_t cmd_len;
 448         struct iwl_calib_hdr hdr;
 449         /* data follows */
 450 };
 451
 452 /* Sensitivity calib data */
 453 struct iwl_sensitivity_data {
 454         u32 auto_corr_ofdm;
 455         u32 auto_corr_ofdm_mrc;
 456         u32 auto_corr_ofdm_x1;
 457         u32 auto_corr_ofdm_mrc_x1;
 458         u32 auto_corr_cck;
 459         u32 auto_corr_cck_mrc;
 460
 461         u32 last_bad_plcp_cnt_ofdm;
 462         u32 last_fa_cnt_ofdm;
 463         u32 last_bad_plcp_cnt_cck;
 464         u32 last_fa_cnt_cck;
 465
 466         u32 nrg_curr_state;
 467         u32 nrg_prev_state;
 468         u32 nrg_value[10];
 469         u8  nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
 470         u32 nrg_silence_ref;
 471         u32 nrg_energy_idx;
 472         u32 nrg_silence_idx;
 473         u32 nrg_th_cck;
 474         s32 nrg_auto_corr_silence_diff;
 475         u32 num_in_cck_no_fa;
 476         u32 nrg_th_ofdm;
 477
 478         u16 barker_corr_th_min;
 479         u16 barker_corr_th_min_mrc;
 480         u16 nrg_th_cca;
 481 };
 482
 483 /* Chain noise (differential Rx gain) calib data */
 484 struct iwl_chain_noise_data {
 485         u32 active_chains;
 486         u32 chain_noise_a;
 487         u32 chain_noise_b;
 488         u32 chain_noise_c;
 489         u32 chain_signal_a;
 490         u32 chain_signal_b;
 491         u32 chain_signal_c;
 492         u16 beacon_count;
 493         u8 disconn_array[NUM_RX_CHAINS];
 494         u8 delta_gain_code[NUM_RX_CHAINS];
 495         u8 radio_write;
 496         u8 state;
 497 };
 498
 499 #define EEPROM_SEM_TIMEOUT 10           /* milliseconds */
 500 #define EEPROM_SEM_RETRY_LIMIT 1000     /* number of attempts (not time) */
 501
 502 enum {
 503         MEASUREMENT_READY = (1 << 0),
 504         MEASUREMENT_ACTIVE = (1 << 1),
 505 };
 506
 507 enum iwl_nvm_type {
 508         NVM_DEVICE_TYPE_EEPROM = 0,
 509         NVM_DEVICE_TYPE_OTP,
 510 };
 511
 512 /*
 513  * Two types of OTP memory access modes
 514  *   IWL_OTP_ACCESS_ABSOLUTE - absolute address mode,
 515  *                              based on physical memory addressing
 516  *   IWL_OTP_ACCESS_RELATIVE - relative address mode,
 517  *                             based on logical memory addressing
 518  */
 519 enum iwl_access_mode {
 520         IWL_OTP_ACCESS_ABSOLUTE,
 521         IWL_OTP_ACCESS_RELATIVE,
 522 };
 523
 524 /**
 525  * enum iwl_pa_type - Power Amplifier type
 526  * @IWL_PA_SYSTEM:  based on uCode configuration
 527  * @IWL_PA_INTERNAL: use Internal only
 528  */
 529 enum iwl_pa_type {
 530         IWL_PA_SYSTEM = 0,
 531         IWL_PA_INTERNAL = 1,
 532 };
 533
 534 /* reply_tx_statistics (for _agn devices) */
 535 struct reply_tx_error_statistics {
 536         u32 pp_delay;
 537         u32 pp_few_bytes;
 538         u32 pp_bt_prio;
 539         u32 pp_quiet_period;
 540         u32 pp_calc_ttak;
 541         u32 int_crossed_retry;
 542         u32 short_limit;
 543         u32 long_limit;
 544         u32 fifo_underrun;
 545         u32 drain_flow;
 546         u32 rfkill_flush;
 547         u32 life_expire;
 548         u32 dest_ps;
 549         u32 host_abort;
 550         u32 bt_retry;
 551         u32 sta_invalid;
 552         u32 frag_drop;
 553         u32 tid_disable;
 554         u32 fifo_flush;
 555         u32 insuff_cf_poll;
 556         u32 fail_hw_drop;
 557         u32 sta_color_mismatch;
 558         u32 unknown;
 559 };
 560
 561 /* reply_agg_tx_statistics (for _agn devices) */
 562 struct reply_agg_tx_error_statistics {
 563         u32 underrun;
 564         u32 bt_prio;
 565         u32 few_bytes;
 566         u32 abort;
 567         u32 last_sent_ttl;
 568         u32 last_sent_try;
 569         u32 last_sent_bt_kill;
 570         u32 scd_query;
 571         u32 bad_crc32;
 572         u32 response;
 573         u32 dump_tx;
 574         u32 delay_tx;
 575         u32 unknown;
 576 };
 577
 578 /* management statistics */
 579 enum iwl_mgmt_stats {
 580         MANAGEMENT_ASSOC_REQ = 0,
 581         MANAGEMENT_ASSOC_RESP,
 582         MANAGEMENT_REASSOC_REQ,
 583         MANAGEMENT_REASSOC_RESP,
 584         MANAGEMENT_PROBE_REQ,
 585         MANAGEMENT_PROBE_RESP,
 586         MANAGEMENT_BEACON,
 587         MANAGEMENT_ATIM,
 588         MANAGEMENT_DISASSOC,
 589         MANAGEMENT_AUTH,
 590         MANAGEMENT_DEAUTH,
 591         MANAGEMENT_ACTION,
 592         MANAGEMENT_MAX,
 593 };
 594 /* control statistics */
 595 enum iwl_ctrl_stats {
 596         CONTROL_BACK_REQ =  0,
 597         CONTROL_BACK,
 598         CONTROL_PSPOLL,
 599         CONTROL_RTS,
 600         CONTROL_CTS,
 601         CONTROL_ACK,
 602         CONTROL_CFEND,
 603         CONTROL_CFENDACK,
 604         CONTROL_MAX,
 605 };
 606
 607 struct traffic_stats {
 608 #ifdef CONFIG_IWLWIFI_DEBUGFS
 609         u32 mgmt[MANAGEMENT_MAX];
 610         u32 ctrl[CONTROL_MAX];
 611         u32 data_cnt;
 612         u64 data_bytes;
 613 #endif
 614 };
 615
 616 /*
 617  * schedule the timer to wake up every UCODE_TRACE_PERIOD milliseconds
 618  * to perform continuous uCode event logging operation if enabled
 619  */
 620 #define UCODE_TRACE_PERIOD (100)
 621
 622 /*
 623  * iwl_event_log: current uCode event log position
 624  *
 625  * @ucode_trace: enable/disable ucode continuous trace timer
 626  * @num_wraps: how many times the event buffer wraps
 627  * @next_entry:  the entry just before the next one that uCode would fill
 628  * @non_wraps_count: counter for no wrap detected when dump ucode events
 629  * @wraps_once_count: counter for wrap once detected when dump ucode events
 630  * @wraps_more_count: counter for wrap more than once detected
 631  *                    when dump ucode events
 632  */
 633 struct iwl_event_log {
 634         bool ucode_trace;
 635         u32 num_wraps;
 636         u32 next_entry;
 637         int non_wraps_count;
 638         int wraps_once_count;
 639         int wraps_more_count;
 640 };
 641
 642 /*
 643  * This is the threshold value of plcp error rate per 100mSecs.  It is
 644  * used to set and check for the validity of plcp_delta.
 645  */
 646 #define IWL_MAX_PLCP_ERR_THRESHOLD_MIN  (1)
 647 #define IWL_MAX_PLCP_ERR_THRESHOLD_DEF  (50)
 648 #define IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF     (100)
 649 #define IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF (200)
 650 #define IWL_MAX_PLCP_ERR_THRESHOLD_MAX  (255)
 651 #define IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE      (0)
 652
 653 #define IWL_DELAY_NEXT_FORCE_RF_RESET  (HZ*3)
 654 #define IWL_DELAY_NEXT_FORCE_FW_RELOAD (HZ*5)
 655
 656 /* TX queue watchdog timeouts in mSecs */
 657 #define IWL_DEF_WD_TIMEOUT      (2000)
 658 #define IWL_LONG_WD_TIMEOUT     (10000)
 659 #define IWL_MAX_WD_TIMEOUT      (120000)
 660
 661 /* BT Antenna Coupling Threshold (dB) */
 662 #define IWL_BT_ANTENNA_COUPLING_THRESHOLD       (35)
 663
 664 /* Firmware reload counter and Timestamp */
 665 #define IWL_MIN_RELOAD_DURATION         1000 /* 1000 ms */
 666 #define IWL_MAX_CONTINUE_RELOAD_CNT     4
 667
 668
 669 enum iwl_reset {
 670         IWL_RF_RESET = 0,
 671         IWL_FW_RESET,
 672         IWL_MAX_FORCE_RESET,
 673 };
 674
 675 struct iwl_force_reset {
 676         int reset_request_count;
 677         int reset_success_count;
 678         int reset_reject_count;
 679         unsigned long reset_duration;
 680         unsigned long last_force_reset_jiffies;
 681 };
 682
 683 /* extend beacon time format bit shifting  */
 684 /*
 685  * for _agn devices
 686  * bits 31:22 - extended
 687  * bits 21:0  - interval
 688  */
 689 #define IWLAGN_EXT_BEACON_TIME_POS      22
 690
 691 struct iwl_rxon_context {
 692         struct ieee80211_vif *vif;
 693
 694         /*
 695          * We could use the vif to indicate active, but we
 696          * also need it to be active during disabling when
 697          * we already removed the vif for type setting.
 698          */
 699         bool always_active, is_active;
 700
 701         bool ht_need_multiple_chains;
 702
 703         enum iwl_rxon_context_id ctxid;
 704
 705         u32 interface_modes, exclusive_interface_modes;
 706         u8 unused_devtype, ap_devtype, ibss_devtype, station_devtype;
 707
 708         /*
 709          * We declare this const so it can only be
 710          * changed via explicit cast within the
 711          * routines that actually update the physical
 712          * hardware.
 713          */
 714         const struct iwl_rxon_cmd active;
 715         struct iwl_rxon_cmd staging;
 716
 717         struct iwl_rxon_time_cmd timing;
 718
 719         struct iwl_qos_info qos_data;
 720
 721         u8 bcast_sta_id, ap_sta_id;
 722
 723         u8 rxon_cmd, rxon_assoc_cmd, rxon_timing_cmd;
 724         u8 qos_cmd;
 725         u8 wep_key_cmd;
 726
 727         struct iwl_wep_key wep_keys[WEP_KEYS_MAX];
 728         u8 key_mapping_keys;
 729
 730         __le32 station_flags;
 731
 732         int beacon_int;
 733
 734         struct {
 735                 bool non_gf_sta_present;
 736                 u8 protection;
 737                 bool enabled, is_40mhz;
 738                 u8 extension_chan_offset;
 739         } ht;
 740
 741         u8 bssid[ETH_ALEN];
 742         bool preauth_bssid;
 743
 744         bool last_tx_rejected;
 745 };
 746
 747 enum iwl_scan_type {
 748         IWL_SCAN_NORMAL,
 749         IWL_SCAN_RADIO_RESET,
 750         IWL_SCAN_ROC,
 751 };
 752
 753 #ifdef CONFIG_IWLWIFI_DEVICE_TESTMODE
 754 struct iwl_testmode_trace {
 755         u32 buff_size;
 756         u32 total_size;
 757         u32 num_chunks;
 758         u8 *cpu_addr;
 759         u8 *trace_addr;
 760         dma_addr_t dma_addr;
 761         bool trace_enabled;
 762 };
 763 struct iwl_testmode_sram {
 764         u32 buff_size;
 765         u32 num_chunks;
 766         u8 *buff_addr;
 767         bool sram_readed;
 768 };
 769 #endif
 770
 771 struct iwl_wipan_noa_data {
 772         struct rcu_head rcu_head;
 773         u32 length;
 774         u8 data[];
 775 };
 776
 777 struct iwl_priv {
 778
 779         /*data shared among all the driver's layers */
 780         struct iwl_shared _shrd;
 781         struct iwl_shared *shrd;
 782
 783         /* ieee device used by generic ieee processing code */
 784         struct ieee80211_hw *hw;
 785         struct ieee80211_channel *ieee_channels;
 786         struct ieee80211_rate *ieee_rates;
 787         struct kmem_cache *tx_cmd_pool;
 788         struct iwl_cfg *cfg;
 789
 790         enum ieee80211_band band;
 791
 792         void (*pre_rx_handler)(struct iwl_priv *priv,
 793                                struct iwl_rx_mem_buffer *rxb);
 794         int (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
 795                                        struct iwl_rx_mem_buffer *rxb,
 796                                        struct iwl_device_cmd *cmd);
 797
 798         struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
 799
 800         /* spectrum measurement report caching */
 801         struct iwl_spectrum_notification measure_report;
 802         u8 measurement_status;
 803
 804         /* ucode beacon time */
 805         u32 ucode_beacon_time;
 806         int missed_beacon_threshold;
 807
 808         /* track IBSS manager (last beacon) status */
 809         u32 ibss_manager;
 810
 811         /* jiffies when last recovery from statistics was performed */
 812         unsigned long rx_statistics_jiffies;
 813
 814         /*counters */
 815         u32 rx_handlers_stats[REPLY_MAX];
 816
 817         /* force reset */
 818         struct iwl_force_reset force_reset[IWL_MAX_FORCE_RESET];
 819
 820         /* firmware reload counter and timestamp */
 821         unsigned long reload_jiffies;
 822         int reload_count;
 823
 824         /* we allocate array of iwl_channel_info for NIC's valid channels.
 825          *    Access via channel # using indirect index array */
 826         struct iwl_channel_info *channel_info;  /* channel info array */
 827         u8 channel_count;       /* # of channels */
 828
 829         /* thermal calibration */
 830         s32 temperature;        /* Celsius */
 831         s32 last_temperature;
 832
 833         /* init calibration results */
 834         struct list_head calib_results;
 835
 836         struct iwl_wipan_noa_data __rcu *noa_data;
 837
 838         /* Scan related variables */
 839         unsigned long scan_start;
 840         unsigned long scan_start_tsf;
 841         void *scan_cmd;
 842         enum ieee80211_band scan_band;
 843         struct cfg80211_scan_request *scan_request;
 844         struct ieee80211_vif *scan_vif;
 845         enum iwl_scan_type scan_type;
 846         u8 scan_tx_ant[IEEE80211_NUM_BANDS];
 847         u8 mgmt_tx_ant;
 848
 849         /* max number of station keys */
 850         u8 sta_key_max_num;
 851
 852         bool new_scan_threshold_behaviour;
 853
 854         /* EEPROM MAC addresses */
 855         struct mac_address addresses[2];
 856
 857         /* uCode images, save to reload in case of failure */
 858         int fw_index;                   /* firmware we're trying to load */
 859         u32 ucode_ver;                  /* version of ucode, copy of
 860                                            iwl_ucode.ver */
 861
 862         char firmware_name[25];
 863
 864         struct iwl_rxon_context contexts[NUM_IWL_RXON_CTX];
 865
 866         __le16 switch_channel;
 867
 868         struct {
 869                 u32 error_event_table;
 870                 u32 log_event_table;
 871         } device_pointers;
 872
 873         u16 active_rate;
 874
 875         u8 start_calib;
 876         struct iwl_sensitivity_data sensitivity_data;
 877         struct iwl_chain_noise_data chain_noise_data;
 878         bool enhance_sensitivity_table;
 879         __le16 sensitivity_tbl[HD_TABLE_SIZE];
 880         __le16 enhance_sensitivity_tbl[ENHANCE_HD_TABLE_ENTRIES];
 881
 882         struct iwl_ht_config current_ht_config;
 883
 884         /* Rate scaling data */
 885         u8 retry_rate;
 886
 887         int activity_timer_active;
 888
 889         /* counts mgmt, ctl, and data packets */
 890         struct traffic_stats tx_stats;
 891         struct traffic_stats rx_stats;
 892
 893         struct iwl_power_mgr power_data;
 894         struct iwl_tt_mgmt thermal_throttle;
 895
 896         /* station table variables */
 897         int num_stations;
 898         struct iwl_station_entry stations[IWLAGN_STATION_COUNT];
 899         unsigned long ucode_key_table;
 900
 901         u8 mac80211_registered;
 902
 903         /* Indication if ieee80211_ops->open has been called */
 904         u8 is_open;
 905
 906         enum nl80211_iftype iw_mode;
 907
 908         /* Last Rx'd beacon timestamp */
 909         u64 timestamp;
 910
 911         struct {
 912                 __le32 flag;
 913                 struct statistics_general_common common;
 914                 struct statistics_rx_non_phy rx_non_phy;
 915                 struct statistics_rx_phy rx_ofdm;
 916                 struct statistics_rx_ht_phy rx_ofdm_ht;
 917                 struct statistics_rx_phy rx_cck;
 918                 struct statistics_tx tx;
 919 #ifdef CONFIG_IWLWIFI_DEBUGFS
 920                 struct statistics_bt_activity bt_activity;
 921                 __le32 num_bt_kills, accum_num_bt_kills;
 922 #endif
 923         } statistics;
 924 #ifdef CONFIG_IWLWIFI_DEBUGFS
 925         struct {
 926                 struct statistics_general_common common;
 927                 struct statistics_rx_non_phy rx_non_phy;
 928                 struct statistics_rx_phy rx_ofdm;
 929                 struct statistics_rx_ht_phy rx_ofdm_ht;
 930                 struct statistics_rx_phy rx_cck;
 931                 struct statistics_tx tx;
 932                 struct statistics_bt_activity bt_activity;
 933         } accum_stats, delta_stats, max_delta_stats;
 934 #endif
 935
 936         /*
 937          * reporting the number of tids has AGG on. 0 means
 938          * no AGGREGATION
 939          */
 940         u8 agg_tids_count;
 941
 942         struct iwl_rx_phy_res last_phy_res;
 943         bool last_phy_res_valid;
 944
 945         struct completion firmware_loading_complete;
 946
 947         u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
 948         u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
 949
 950         /*
 951          * chain noise reset and gain commands are the
 952          * two extra calibration commands follows the standard
 953          * phy calibration commands
 954          */
 955         u8 phy_calib_chain_noise_reset_cmd;
 956         u8 phy_calib_chain_noise_gain_cmd;
 957
 958         /* counts reply_tx error */
 959         struct reply_tx_error_statistics reply_tx_stats;
 960         struct reply_agg_tx_error_statistics reply_agg_tx_stats;
 961
 962         /* remain-on-channel offload support */
 963         struct ieee80211_channel *hw_roc_channel;
 964         struct delayed_work hw_roc_disable_work;
 965         enum nl80211_channel_type hw_roc_chantype;
 966         int hw_roc_duration;
 967         bool hw_roc_setup, hw_roc_start_notified;
 968
 969         /* bt coex */
 970         u8 bt_enable_flag;
 971         u8 bt_status;
 972         u8 bt_traffic_load, last_bt_traffic_load;
 973         bool bt_ch_announce;
 974         bool bt_full_concurrent;
 975         bool bt_ant_couple_ok;
 976         __le32 kill_ack_mask;
 977         __le32 kill_cts_mask;
 978         __le16 bt_valid;
 979         u16 bt_on_thresh;
 980         u16 bt_duration;
 981         u16 dynamic_frag_thresh;
 982         u8 bt_ci_compliance;
 983         struct work_struct bt_traffic_change_work;
 984         bool bt_enable_pspoll;
 985         struct iwl_rxon_context *cur_rssi_ctx;
 986         bool bt_is_sco;
 987
 988         struct work_struct restart;
 989         struct work_struct scan_completed;
 990         struct work_struct abort_scan;
 991
 992         struct work_struct beacon_update;
 993         struct iwl_rxon_context *beacon_ctx;
 994         struct sk_buff *beacon_skb;
 995         void *beacon_cmd;
 996
 997         struct work_struct tt_work;
 998         struct work_struct ct_enter;
 999         struct work_struct ct_exit;
1000         struct work_struct start_internal_scan;
1001         struct work_struct tx_flush;
1002         struct work_struct bt_full_concurrency;
1003         struct work_struct bt_runtime_config;
1004
1005         struct delayed_work scan_check;
1006
1007         /* TX Power */
1008         s8 tx_power_user_lmt;
1009         s8 tx_power_device_lmt;
1010         s8 tx_power_lmt_in_half_dbm; /* max tx power in half-dBm format */
1011         s8 tx_power_next;
1012
1013 #ifdef CONFIG_IWLWIFI_DEBUGFS
1014         /* debugfs */
1015         u16 tx_traffic_idx;
1016         u16 rx_traffic_idx;
1017         u8 *tx_traffic;
1018         u8 *rx_traffic;
1019         struct dentry *debugfs_dir;
1020         u32 dbgfs_sram_offset, dbgfs_sram_len;
1021         bool disable_ht40;
1022         void *wowlan_sram;
1023 #endif /* CONFIG_IWLWIFI_DEBUGFS */
1024
1025         struct work_struct txpower_work;
1026         u32 disable_sens_cal;
1027         u32 disable_chain_noise_cal;
1028         struct work_struct run_time_calib_work;
1029         struct timer_list statistics_periodic;
1030         struct timer_list ucode_trace;
1031         struct timer_list watchdog;
1032
1033         struct iwl_event_log event_log;
1034
1035         struct led_classdev led;
1036         unsigned long blink_on, blink_off;
1037         bool led_registered;
1038 #ifdef CONFIG_IWLWIFI_DEVICE_TESTMODE
1039         struct iwl_testmode_trace testmode_trace;
1040         struct iwl_testmode_sram testmode_sram;
1041         u32 tm_fixed_rate;
1042 #endif
1043
1044         /* WoWLAN GTK rekey data */
1045         u8 kck[NL80211_KCK_LEN], kek[NL80211_KEK_LEN];
1046         __le64 replay_ctr;
1047         __le16 last_seq_ctl;
1048         bool have_rekey_data;
1049 }; /*iwl_priv */
1050
1051 extern struct iwl_mod_params iwlagn_mod_params;
1052
1053 static inline struct iwl_rxon_context *
1054 iwl_rxon_ctx_from_vif(struct ieee80211_vif *vif)
1055 {
1056         struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
1057
1058         return vif_priv->ctx;
1059 }
1060
1061 #define for_each_context(priv, ctx)                             \
1062         for (ctx = &priv->contexts[IWL_RXON_CTX_BSS];           \
1063              ctx < &priv->contexts[NUM_IWL_RXON_CTX]; ctx++)    \
1064                 if (priv->shrd->valid_contexts & BIT(ctx->ctxid))
1065
1066 static inline int iwl_is_associated_ctx(struct iwl_rxon_context *ctx)
1067 {
1068         return (ctx->active.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
1069 }
1070
1071 static inline int iwl_is_associated(struct iwl_priv *priv,
1072                                     enum iwl_rxon_context_id ctxid)
1073 {
1074         return iwl_is_associated_ctx(&priv->contexts[ctxid]);
1075 }
1076
1077 static inline int iwl_is_any_associated(struct iwl_priv *priv)
1078 {
1079         struct iwl_rxon_context *ctx;
1080         for_each_context(priv, ctx)
1081                 if (iwl_is_associated_ctx(ctx))
1082                         return true;
1083         return false;
1084 }
1085
1086 static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
1087 {
1088         if (ch_info == NULL)
1089                 return 0;
1090         return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
1091 }
1092
1093 static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
1094 {
1095         return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
1096 }
1097
1098 static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
1099 {
1100         return ch_info->band == IEEE80211_BAND_5GHZ;
1101 }
1102
1103 static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
1104 {
1105         return ch_info->band == IEEE80211_BAND_2GHZ;
1106 }
1107
1108 static inline int is_channel_passive(const struct iwl_channel_info *ch)
1109 {
1110         return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1111 }
1112
1113 static inline int is_channel_ibss(const struct iwl_channel_info *ch)
1114 {
1115         return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1116 }
1117
1118 #endif                          /* __iwl_dev_h__ */