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 (4965, no beacon statistics being sent to driver)
  64  *   2)  Scanning (noise measurement does not apply to associated channel)
  65  *   3)  Receiving CCK (3945 delivers noise info only for OFDM frames)
  66  * Use default noise value of -127 ... this is below the range of measurable
  67  *   Rx dBm for either 3945 or 4965, 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  * Structure should be accessed with sta_lock held. When station addition
 195  * is in progress (IWL_STA_UCODE_INPROGRESS) it is possible to access only
 196  * the commands (iwl_addsta_cmd and iwl_link_quality_cmd) without sta_lock
 197  * held.
 198  */
 199 struct iwl_station_entry {
 200         struct iwl_addsta_cmd sta;
 201         u8 used, ctxid;
 202         struct iwl_link_quality_cmd *lq;
 203 };
 204
 205 /*
 206  * iwl_station_priv: Driver's private station information
 207  *
 208  * When mac80211 creates a station it reserves some space (hw->sta_data_size)
 209  * in the structure for use by driver. This structure is places in that
 210  * space.
 211  */
 212 struct iwl_station_priv {
 213         struct iwl_rxon_context *ctx;
 214         struct iwl_lq_sta lq_sta;
 215         atomic_t pending_frames;
 216         bool client;
 217         bool asleep;
 218         u8 max_agg_bufsize;
 219         u8 sta_id;
 220 };
 221
 222 /**
 223  * struct iwl_vif_priv - driver's private per-interface information
 224  *
 225  * When mac80211 allocates a virtual interface, it can allocate
 226  * space for us to put data into.
 227  */
 228 struct iwl_vif_priv {
 229         struct iwl_rxon_context *ctx;
 230         u8 ibss_bssid_sta_id;
 231 };
 232
 233 /* one for each uCode image (inst/data, boot/init/runtime) */
 234 struct fw_desc {
 235         void *v_addr;           /* access by driver */
 236         dma_addr_t p_addr;      /* access by card's busmaster DMA */
 237         u32 len;                /* bytes */
 238 };
 239
 240 struct fw_img {
 241         struct fw_desc code, data;
 242 };
 243
 244 /* v1/v2 uCode file layout */
 245 struct iwl_ucode_header {
 246         __le32 ver;     /* major/minor/API/serial */
 247         union {
 248                 struct {
 249                         __le32 inst_size;       /* bytes of runtime code */
 250                         __le32 data_size;       /* bytes of runtime data */
 251                         __le32 init_size;       /* bytes of init code */
 252                         __le32 init_data_size;  /* bytes of init data */
 253                         __le32 boot_size;       /* bytes of bootstrap code */
 254                         u8 data[0];             /* in same order as sizes */
 255                 } v1;
 256                 struct {
 257                         __le32 build;           /* build number */
 258                         __le32 inst_size;       /* bytes of runtime code */
 259                         __le32 data_size;       /* bytes of runtime data */
 260                         __le32 init_size;       /* bytes of init code */
 261                         __le32 init_data_size;  /* bytes of init data */
 262                         __le32 boot_size;       /* bytes of bootstrap code */
 263                         u8 data[0];             /* in same order as sizes */
 264                 } v2;
 265         } u;
 266 };
 267
 268 /*
 269  * new TLV uCode file layout
 270  *
 271  * The new TLV file format contains TLVs, that each specify
 272  * some piece of data. To facilitate "groups", for example
 273  * different instruction image with different capabilities,
 274  * bundled with the same init image, an alternative mechanism
 275  * is provided:
 276  * When the alternative field is 0, that means that the item
 277  * is always valid. When it is non-zero, then it is only
 278  * valid in conjunction with items of the same alternative,
 279  * in which case the driver (user) selects one alternative
 280  * to use.
 281  */
 282
 283 enum iwl_ucode_tlv_type {
 284         IWL_UCODE_TLV_INVALID           = 0, /* unused */
 285         IWL_UCODE_TLV_INST              = 1,
 286         IWL_UCODE_TLV_DATA              = 2,
 287         IWL_UCODE_TLV_INIT              = 3,
 288         IWL_UCODE_TLV_INIT_DATA         = 4,
 289         IWL_UCODE_TLV_BOOT              = 5,
 290         IWL_UCODE_TLV_PROBE_MAX_LEN     = 6, /* a u32 value */
 291         IWL_UCODE_TLV_PAN               = 7,
 292         IWL_UCODE_TLV_RUNT_EVTLOG_PTR   = 8,
 293         IWL_UCODE_TLV_RUNT_EVTLOG_SIZE  = 9,
 294         IWL_UCODE_TLV_RUNT_ERRLOG_PTR   = 10,
 295         IWL_UCODE_TLV_INIT_EVTLOG_PTR   = 11,
 296         IWL_UCODE_TLV_INIT_EVTLOG_SIZE  = 12,
 297         IWL_UCODE_TLV_INIT_ERRLOG_PTR   = 13,
 298         IWL_UCODE_TLV_ENHANCE_SENS_TBL  = 14,
 299         IWL_UCODE_TLV_PHY_CALIBRATION_SIZE = 15,
 300         IWL_UCODE_TLV_WOWLAN_INST       = 16,
 301         IWL_UCODE_TLV_WOWLAN_DATA       = 17,
 302         IWL_UCODE_TLV_FLAGS             = 18,
 303 };
 304
 305 /**
 306  * enum iwl_ucode_tlv_flag - ucode API flags
 307  * @IWL_UCODE_TLV_FLAGS_PAN: This is PAN capable microcode; this previously
 308  *      was a separate TLV but moved here to save space.
 309  * @IWL_UCODE_TLV_FLAGS_NEWSCAN: new uCode scan behaviour on hidden SSID,
 310  *      treats good CRC threshold as a boolean
 311  * @IWL_UCODE_TLV_FLAGS_MFP: This uCode image supports MFP (802.11w).
 312  * @IWL_UCODE_TLV_FLAGS_P2P: This uCode image supports P2P.
 313  */
 314 enum iwl_ucode_tlv_flag {
 315         IWL_UCODE_TLV_FLAGS_PAN         = BIT(0),
 316         IWL_UCODE_TLV_FLAGS_NEWSCAN     = BIT(1),
 317         IWL_UCODE_TLV_FLAGS_MFP         = BIT(2),
 318         IWL_UCODE_TLV_FLAGS_P2P         = BIT(3),
 319 };
 320
 321 struct iwl_ucode_tlv {
 322         __le16 type;            /* see above */
 323         __le16 alternative;     /* see comment */
 324         __le32 length;          /* not including type/length fields */
 325         u8 data[0];
 326 } __packed;
 327
 328 #define IWL_TLV_UCODE_MAGIC     0x0a4c5749
 329
 330 struct iwl_tlv_ucode_header {
 331         /*
 332          * The TLV style ucode header is distinguished from
 333          * the v1/v2 style header by first four bytes being
 334          * zero, as such is an invalid combination of
 335          * major/minor/API/serial versions.
 336          */
 337         __le32 zero;
 338         __le32 magic;
 339         u8 human_readable[64];
 340         __le32 ver;             /* major/minor/API/serial */
 341         __le32 build;
 342         __le64 alternatives;    /* bitmask of valid alternatives */
 343         /*
 344          * The data contained herein has a TLV layout,
 345          * see above for the TLV header and types.
 346          * Note that each TLV is padded to a length
 347          * that is a multiple of 4 for alignment.
 348          */
 349         u8 data[0];
 350 };
 351
 352 struct iwl_sensitivity_ranges {
 353         u16 min_nrg_cck;
 354         u16 max_nrg_cck;
 355
 356         u16 nrg_th_cck;
 357         u16 nrg_th_ofdm;
 358
 359         u16 auto_corr_min_ofdm;
 360         u16 auto_corr_min_ofdm_mrc;
 361         u16 auto_corr_min_ofdm_x1;
 362         u16 auto_corr_min_ofdm_mrc_x1;
 363
 364         u16 auto_corr_max_ofdm;
 365         u16 auto_corr_max_ofdm_mrc;
 366         u16 auto_corr_max_ofdm_x1;
 367         u16 auto_corr_max_ofdm_mrc_x1;
 368
 369         u16 auto_corr_max_cck;
 370         u16 auto_corr_max_cck_mrc;
 371         u16 auto_corr_min_cck;
 372         u16 auto_corr_min_cck_mrc;
 373
 374         u16 barker_corr_th_min;
 375         u16 barker_corr_th_min_mrc;
 376         u16 nrg_th_cca;
 377 };
 378
 379
 380 #define KELVIN_TO_CELSIUS(x) ((x)-273)
 381 #define CELSIUS_TO_KELVIN(x) ((x)+273)
 382
 383
 384 /******************************************************************************
 385  *
 386  * Functions implemented in core module which are forward declared here
 387  * for use by iwl-[4-5].c
 388  *
 389  * NOTE:  The implementation of these functions are not hardware specific
 390  * which is why they are in the core module files.
 391  *
 392  * Naming convention --
 393  * iwl_         <-- Is part of iwlwifi
 394  * iwlXXXX_     <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
 395  *
 396  ****************************************************************************/
 397 extern void iwl_update_chain_flags(struct iwl_priv *priv);
 398 extern const u8 iwl_bcast_addr[ETH_ALEN];
 399
 400 #define IWL_OPERATION_MODE_AUTO     0
 401 #define IWL_OPERATION_MODE_HT_ONLY  1
 402 #define IWL_OPERATION_MODE_MIXED    2
 403 #define IWL_OPERATION_MODE_20MHZ    3
 404
 405 #define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
 406
 407 /* Sensitivity and chain noise calibration */
 408 #define INITIALIZATION_VALUE            0xFFFF
 409 #define IWL_CAL_NUM_BEACONS             16
 410 #define MAXIMUM_ALLOWED_PATHLOSS        15
 411
 412 #define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
 413
 414 #define MAX_FA_OFDM  50
 415 #define MIN_FA_OFDM  5
 416 #define MAX_FA_CCK   50
 417 #define MIN_FA_CCK   5
 418
 419 #define AUTO_CORR_STEP_OFDM       1
 420
 421 #define AUTO_CORR_STEP_CCK     3
 422 #define AUTO_CORR_MAX_TH_CCK   160
 423
 424 #define NRG_DIFF               2
 425 #define NRG_STEP_CCK           2
 426 #define NRG_MARGIN             8
 427 #define MAX_NUMBER_CCK_NO_FA 100
 428
 429 #define AUTO_CORR_CCK_MIN_VAL_DEF    (125)
 430
 431 #define CHAIN_A             0
 432 #define CHAIN_B             1
 433 #define CHAIN_C             2
 434 #define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
 435 #define ALL_BAND_FILTER                 0xFF00
 436 #define IN_BAND_FILTER                  0xFF
 437 #define MIN_AVERAGE_NOISE_MAX_VALUE     0xFFFFFFFF
 438
 439 #define NRG_NUM_PREV_STAT_L     20
 440 #define NUM_RX_CHAINS           3
 441
 442 enum iwlagn_false_alarm_state {
 443         IWL_FA_TOO_MANY = 0,
 444         IWL_FA_TOO_FEW = 1,
 445         IWL_FA_GOOD_RANGE = 2,
 446 };
 447
 448 enum iwlagn_chain_noise_state {
 449         IWL_CHAIN_NOISE_ALIVE = 0,  /* must be 0 */
 450         IWL_CHAIN_NOISE_ACCUMULATE,
 451         IWL_CHAIN_NOISE_CALIBRATED,
 452         IWL_CHAIN_NOISE_DONE,
 453 };
 454
 455
 456 /*
 457  * enum iwl_calib
 458  * defines the order in which results of initial calibrations
 459  * should be sent to the runtime uCode
 460  */
 461 enum iwl_calib {
 462         IWL_CALIB_XTAL,
 463         IWL_CALIB_DC,
 464         IWL_CALIB_LO,
 465         IWL_CALIB_TX_IQ,
 466         IWL_CALIB_TX_IQ_PERD,
 467         IWL_CALIB_BASE_BAND,
 468         IWL_CALIB_TEMP_OFFSET,
 469         IWL_CALIB_MAX
 470 };
 471
 472 /* Opaque calibration results */
 473 struct iwl_calib_result {
 474         void *buf;
 475         size_t buf_len;
 476 };
 477
 478 /* Sensitivity calib data */
 479 struct iwl_sensitivity_data {
 480         u32 auto_corr_ofdm;
 481         u32 auto_corr_ofdm_mrc;
 482         u32 auto_corr_ofdm_x1;
 483         u32 auto_corr_ofdm_mrc_x1;
 484         u32 auto_corr_cck;
 485         u32 auto_corr_cck_mrc;
 486
 487         u32 last_bad_plcp_cnt_ofdm;
 488         u32 last_fa_cnt_ofdm;
 489         u32 last_bad_plcp_cnt_cck;
 490         u32 last_fa_cnt_cck;
 491
 492         u32 nrg_curr_state;
 493         u32 nrg_prev_state;
 494         u32 nrg_value[10];
 495         u8  nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
 496         u32 nrg_silence_ref;
 497         u32 nrg_energy_idx;
 498         u32 nrg_silence_idx;
 499         u32 nrg_th_cck;
 500         s32 nrg_auto_corr_silence_diff;
 501         u32 num_in_cck_no_fa;
 502         u32 nrg_th_ofdm;
 503
 504         u16 barker_corr_th_min;
 505         u16 barker_corr_th_min_mrc;
 506         u16 nrg_th_cca;
 507 };
 508
 509 /* Chain noise (differential Rx gain) calib data */
 510 struct iwl_chain_noise_data {
 511         u32 active_chains;
 512         u32 chain_noise_a;
 513         u32 chain_noise_b;
 514         u32 chain_noise_c;
 515         u32 chain_signal_a;
 516         u32 chain_signal_b;
 517         u32 chain_signal_c;
 518         u16 beacon_count;
 519         u8 disconn_array[NUM_RX_CHAINS];
 520         u8 delta_gain_code[NUM_RX_CHAINS];
 521         u8 radio_write;
 522         u8 state;
 523 };
 524
 525 #define EEPROM_SEM_TIMEOUT 10           /* milliseconds */
 526 #define EEPROM_SEM_RETRY_LIMIT 1000     /* number of attempts (not time) */
 527
 528 enum {
 529         MEASUREMENT_READY = (1 << 0),
 530         MEASUREMENT_ACTIVE = (1 << 1),
 531 };
 532
 533 enum iwl_nvm_type {
 534         NVM_DEVICE_TYPE_EEPROM = 0,
 535         NVM_DEVICE_TYPE_OTP,
 536 };
 537
 538 /*
 539  * Two types of OTP memory access modes
 540  *   IWL_OTP_ACCESS_ABSOLUTE - absolute address mode,
 541  *                              based on physical memory addressing
 542  *   IWL_OTP_ACCESS_RELATIVE - relative address mode,
 543  *                             based on logical memory addressing
 544  */
 545 enum iwl_access_mode {
 546         IWL_OTP_ACCESS_ABSOLUTE,
 547         IWL_OTP_ACCESS_RELATIVE,
 548 };
 549
 550 /**
 551  * enum iwl_pa_type - Power Amplifier type
 552  * @IWL_PA_SYSTEM:  based on uCode configuration
 553  * @IWL_PA_INTERNAL: use Internal only
 554  */
 555 enum iwl_pa_type {
 556         IWL_PA_SYSTEM = 0,
 557         IWL_PA_INTERNAL = 1,
 558 };
 559
 560 /* reply_tx_statistics (for _agn devices) */
 561 struct reply_tx_error_statistics {
 562         u32 pp_delay;
 563         u32 pp_few_bytes;
 564         u32 pp_bt_prio;
 565         u32 pp_quiet_period;
 566         u32 pp_calc_ttak;
 567         u32 int_crossed_retry;
 568         u32 short_limit;
 569         u32 long_limit;
 570         u32 fifo_underrun;
 571         u32 drain_flow;
 572         u32 rfkill_flush;
 573         u32 life_expire;
 574         u32 dest_ps;
 575         u32 host_abort;
 576         u32 bt_retry;
 577         u32 sta_invalid;
 578         u32 frag_drop;
 579         u32 tid_disable;
 580         u32 fifo_flush;
 581         u32 insuff_cf_poll;
 582         u32 fail_hw_drop;
 583         u32 sta_color_mismatch;
 584         u32 unknown;
 585 };
 586
 587 /* reply_agg_tx_statistics (for _agn devices) */
 588 struct reply_agg_tx_error_statistics {
 589         u32 underrun;
 590         u32 bt_prio;
 591         u32 few_bytes;
 592         u32 abort;
 593         u32 last_sent_ttl;
 594         u32 last_sent_try;
 595         u32 last_sent_bt_kill;
 596         u32 scd_query;
 597         u32 bad_crc32;
 598         u32 response;
 599         u32 dump_tx;
 600         u32 delay_tx;
 601         u32 unknown;
 602 };
 603
 604 /* management statistics */
 605 enum iwl_mgmt_stats {
 606         MANAGEMENT_ASSOC_REQ = 0,
 607         MANAGEMENT_ASSOC_RESP,
 608         MANAGEMENT_REASSOC_REQ,
 609         MANAGEMENT_REASSOC_RESP,
 610         MANAGEMENT_PROBE_REQ,
 611         MANAGEMENT_PROBE_RESP,
 612         MANAGEMENT_BEACON,
 613         MANAGEMENT_ATIM,
 614         MANAGEMENT_DISASSOC,
 615         MANAGEMENT_AUTH,
 616         MANAGEMENT_DEAUTH,
 617         MANAGEMENT_ACTION,
 618         MANAGEMENT_MAX,
 619 };
 620 /* control statistics */
 621 enum iwl_ctrl_stats {
 622         CONTROL_BACK_REQ =  0,
 623         CONTROL_BACK,
 624         CONTROL_PSPOLL,
 625         CONTROL_RTS,
 626         CONTROL_CTS,
 627         CONTROL_ACK,
 628         CONTROL_CFEND,
 629         CONTROL_CFENDACK,
 630         CONTROL_MAX,
 631 };
 632
 633 struct traffic_stats {
 634 #ifdef CONFIG_IWLWIFI_DEBUGFS
 635         u32 mgmt[MANAGEMENT_MAX];
 636         u32 ctrl[CONTROL_MAX];
 637         u32 data_cnt;
 638         u64 data_bytes;
 639 #endif
 640 };
 641
 642 /*
 643  * schedule the timer to wake up every UCODE_TRACE_PERIOD milliseconds
 644  * to perform continuous uCode event logging operation if enabled
 645  */
 646 #define UCODE_TRACE_PERIOD (100)
 647
 648 /*
 649  * iwl_event_log: current uCode event log position
 650  *
 651  * @ucode_trace: enable/disable ucode continuous trace timer
 652  * @num_wraps: how many times the event buffer wraps
 653  * @next_entry:  the entry just before the next one that uCode would fill
 654  * @non_wraps_count: counter for no wrap detected when dump ucode events
 655  * @wraps_once_count: counter for wrap once detected when dump ucode events
 656  * @wraps_more_count: counter for wrap more than once detected
 657  *                    when dump ucode events
 658  */
 659 struct iwl_event_log {
 660         bool ucode_trace;
 661         u32 num_wraps;
 662         u32 next_entry;
 663         int non_wraps_count;
 664         int wraps_once_count;
 665         int wraps_more_count;
 666 };
 667
 668 /*
 669  * This is the threshold value of plcp error rate per 100mSecs.  It is
 670  * used to set and check for the validity of plcp_delta.
 671  */
 672 #define IWL_MAX_PLCP_ERR_THRESHOLD_MIN  (1)
 673 #define IWL_MAX_PLCP_ERR_THRESHOLD_DEF  (50)
 674 #define IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF     (100)
 675 #define IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF (200)
 676 #define IWL_MAX_PLCP_ERR_THRESHOLD_MAX  (255)
 677 #define IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE      (0)
 678
 679 #define IWL_DELAY_NEXT_FORCE_RF_RESET  (HZ*3)
 680 #define IWL_DELAY_NEXT_FORCE_FW_RELOAD (HZ*5)
 681
 682 /* TX queue watchdog timeouts in mSecs */
 683 #define IWL_DEF_WD_TIMEOUT      (2000)
 684 #define IWL_LONG_WD_TIMEOUT     (10000)
 685 #define IWL_MAX_WD_TIMEOUT      (120000)
 686
 687 /* BT Antenna Coupling Threshold (dB) */
 688 #define IWL_BT_ANTENNA_COUPLING_THRESHOLD       (35)
 689
 690 /* Firmware reload counter and Timestamp */
 691 #define IWL_MIN_RELOAD_DURATION         1000 /* 1000 ms */
 692 #define IWL_MAX_CONTINUE_RELOAD_CNT     4
 693
 694
 695 enum iwl_reset {
 696         IWL_RF_RESET = 0,
 697         IWL_FW_RESET,
 698         IWL_MAX_FORCE_RESET,
 699 };
 700
 701 struct iwl_force_reset {
 702         int reset_request_count;
 703         int reset_success_count;
 704         int reset_reject_count;
 705         unsigned long reset_duration;
 706         unsigned long last_force_reset_jiffies;
 707 };
 708
 709 /* extend beacon time format bit shifting  */
 710 /*
 711  * for _agn devices
 712  * bits 31:22 - extended
 713  * bits 21:0  - interval
 714  */
 715 #define IWLAGN_EXT_BEACON_TIME_POS      22
 716
 717 /**
 718  * struct iwl_notification_wait - notification wait entry
 719  * @list: list head for global list
 720  * @fn: function called with the notification
 721  * @cmd: command ID
 722  *
 723  * This structure is not used directly, to wait for a
 724  * notification declare it on the stack, and call
 725  * iwlagn_init_notification_wait() with appropriate
 726  * parameters. Then do whatever will cause the ucode
 727  * to notify the driver, and to wait for that then
 728  * call iwlagn_wait_notification().
 729  *
 730  * Each notification is one-shot. If at some point we
 731  * need to support multi-shot notifications (which
 732  * can't be allocated on the stack) we need to modify
 733  * the code for them.
 734  */
 735 struct iwl_notification_wait {
 736         struct list_head list;
 737
 738         void (*fn)(struct iwl_priv *priv, struct iwl_rx_packet *pkt,
 739                    void *data);
 740         void *fn_data;
 741
 742         u8 cmd;
 743         bool triggered, aborted;
 744 };
 745
 746 struct iwl_rxon_context {
 747         struct ieee80211_vif *vif;
 748
 749         /*
 750          * We could use the vif to indicate active, but we
 751          * also need it to be active during disabling when
 752          * we already removed the vif for type setting.
 753          */
 754         bool always_active, is_active;
 755
 756         bool ht_need_multiple_chains;
 757
 758         enum iwl_rxon_context_id ctxid;
 759
 760         u32 interface_modes, exclusive_interface_modes;
 761         u8 unused_devtype, ap_devtype, ibss_devtype, station_devtype;
 762
 763         /*
 764          * We declare this const so it can only be
 765          * changed via explicit cast within the
 766          * routines that actually update the physical
 767          * hardware.
 768          */
 769         const struct iwl_rxon_cmd active;
 770         struct iwl_rxon_cmd staging;
 771
 772         struct iwl_rxon_time_cmd timing;
 773
 774         struct iwl_qos_info qos_data;
 775
 776         u8 bcast_sta_id, ap_sta_id;
 777
 778         u8 rxon_cmd, rxon_assoc_cmd, rxon_timing_cmd;
 779         u8 qos_cmd;
 780         u8 wep_key_cmd;
 781
 782         struct iwl_wep_key wep_keys[WEP_KEYS_MAX];
 783         u8 key_mapping_keys;
 784
 785         __le32 station_flags;
 786
 787         int beacon_int;
 788
 789         struct {
 790                 bool non_gf_sta_present;
 791                 u8 protection;
 792                 bool enabled, is_40mhz;
 793                 u8 extension_chan_offset;
 794         } ht;
 795
 796         u8 bssid[ETH_ALEN];
 797         bool preauth_bssid;
 798
 799         bool last_tx_rejected;
 800 };
 801
 802 enum iwl_scan_type {
 803         IWL_SCAN_NORMAL,
 804         IWL_SCAN_RADIO_RESET,
 805         IWL_SCAN_ROC,
 806 };
 807
 808 enum iwlagn_ucode_type {
 809         IWL_UCODE_NONE,
 810         IWL_UCODE_REGULAR,
 811         IWL_UCODE_INIT,
 812         IWL_UCODE_WOWLAN,
 813 };
 814
 815 #ifdef CONFIG_IWLWIFI_DEVICE_SVTOOL
 816 struct iwl_testmode_trace {
 817         u32 buff_size;
 818         u32 total_size;
 819         u32 num_chunks;
 820         u8 *cpu_addr;
 821         u8 *trace_addr;
 822         dma_addr_t dma_addr;
 823         bool trace_enabled;
 824 };
 825 #endif
 826
 827 struct iwl_priv {
 828
 829         /*data shared among all the driver's layers */
 830         struct iwl_shared _shrd;
 831         struct iwl_shared *shrd;
 832
 833         /* ieee device used by generic ieee processing code */
 834         struct ieee80211_hw *hw;
 835         struct ieee80211_channel *ieee_channels;
 836         struct ieee80211_rate *ieee_rates;
 837         struct kmem_cache *tx_cmd_pool;
 838         struct iwl_cfg *cfg;
 839
 840         enum ieee80211_band band;
 841
 842         void (*pre_rx_handler)(struct iwl_priv *priv,
 843                                struct iwl_rx_mem_buffer *rxb);
 844         int (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
 845                                        struct iwl_rx_mem_buffer *rxb,
 846                                        struct iwl_device_cmd *cmd);
 847
 848         struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
 849
 850         /* spectrum measurement report caching */
 851         struct iwl_spectrum_notification measure_report;
 852         u8 measurement_status;
 853
 854         /* ucode beacon time */
 855         u32 ucode_beacon_time;
 856         int missed_beacon_threshold;
 857
 858         /* track IBSS manager (last beacon) status */
 859         u32 ibss_manager;
 860
 861         /* jiffies when last recovery from statistics was performed */
 862         unsigned long rx_statistics_jiffies;
 863
 864         /*counters */
 865         u32 rx_handlers_stats[REPLY_MAX];
 866
 867         /* force reset */
 868         struct iwl_force_reset force_reset[IWL_MAX_FORCE_RESET];
 869
 870         /* firmware reload counter and timestamp */
 871         unsigned long reload_jiffies;
 872         int reload_count;
 873
 874         /* we allocate array of iwl_channel_info for NIC's valid channels.
 875          *    Access via channel # using indirect index array */
 876         struct iwl_channel_info *channel_info;  /* channel info array */
 877         u8 channel_count;       /* # of channels */
 878
 879         /* thermal calibration */
 880         s32 temperature;        /* Celsius */
 881         s32 last_temperature;
 882
 883         /* init calibration results */
 884         struct iwl_calib_result calib_results[IWL_CALIB_MAX];
 885
 886         /* Scan related variables */
 887         unsigned long scan_start;
 888         unsigned long scan_start_tsf;
 889         void *scan_cmd;
 890         enum ieee80211_band scan_band;
 891         struct cfg80211_scan_request *scan_request;
 892         struct ieee80211_vif *scan_vif;
 893         enum iwl_scan_type scan_type;
 894         u8 scan_tx_ant[IEEE80211_NUM_BANDS];
 895         u8 mgmt_tx_ant;
 896
 897         /* max number of station keys */
 898         u8 sta_key_max_num;
 899
 900         bool new_scan_threshold_behaviour;
 901
 902         /* EEPROM MAC addresses */
 903         struct mac_address addresses[2];
 904
 905         /* uCode images, save to reload in case of failure */
 906         int fw_index;                   /* firmware we're trying to load */
 907         u32 ucode_ver;                  /* version of ucode, copy of
 908                                            iwl_ucode.ver */
 909
 910         struct fw_img ucode_rt;
 911         struct fw_img ucode_init;
 912         struct fw_img ucode_wowlan;
 913
 914         enum iwlagn_ucode_type ucode_type;
 915         u8 ucode_write_complete;        /* the image write is complete */
 916         char firmware_name[25];
 917
 918         struct iwl_rxon_context contexts[NUM_IWL_RXON_CTX];
 919
 920         __le16 switch_channel;
 921
 922         struct {
 923                 u32 error_event_table;
 924                 u32 log_event_table;
 925         } device_pointers;
 926
 927         u16 active_rate;
 928
 929         u8 start_calib;
 930         struct iwl_sensitivity_data sensitivity_data;
 931         struct iwl_chain_noise_data chain_noise_data;
 932         bool enhance_sensitivity_table;
 933         __le16 sensitivity_tbl[HD_TABLE_SIZE];
 934         __le16 enhance_sensitivity_tbl[ENHANCE_HD_TABLE_ENTRIES];
 935
 936         struct iwl_ht_config current_ht_config;
 937
 938         /* Rate scaling data */
 939         u8 retry_rate;
 940
 941         int activity_timer_active;
 942
 943         /* counts mgmt, ctl, and data packets */
 944         struct traffic_stats tx_stats;
 945         struct traffic_stats rx_stats;
 946
 947         struct iwl_power_mgr power_data;
 948         struct iwl_tt_mgmt thermal_throttle;
 949
 950         /* station table variables */
 951         int num_stations;
 952         struct iwl_station_entry stations[IWLAGN_STATION_COUNT];
 953         unsigned long ucode_key_table;
 954
 955         u8 mac80211_registered;
 956
 957         /* Indication if ieee80211_ops->open has been called */
 958         u8 is_open;
 959
 960         /* eeprom -- this is in the card's little endian byte order */
 961         u8 *eeprom;
 962         int    nvm_device_type;
 963         struct iwl_eeprom_calib_info *calib_info;
 964
 965         enum nl80211_iftype iw_mode;
 966
 967         /* Last Rx'd beacon timestamp */
 968         u64 timestamp;
 969
 970         struct {
 971                 __le32 flag;
 972                 struct statistics_general_common common;
 973                 struct statistics_rx_non_phy rx_non_phy;
 974                 struct statistics_rx_phy rx_ofdm;
 975                 struct statistics_rx_ht_phy rx_ofdm_ht;
 976                 struct statistics_rx_phy rx_cck;
 977                 struct statistics_tx tx;
 978 #ifdef CONFIG_IWLWIFI_DEBUGFS
 979                 struct statistics_bt_activity bt_activity;
 980                 __le32 num_bt_kills, accum_num_bt_kills;
 981 #endif
 982         } statistics;
 983 #ifdef CONFIG_IWLWIFI_DEBUGFS
 984         struct {
 985                 struct statistics_general_common common;
 986                 struct statistics_rx_non_phy rx_non_phy;
 987                 struct statistics_rx_phy rx_ofdm;
 988                 struct statistics_rx_ht_phy rx_ofdm_ht;
 989                 struct statistics_rx_phy rx_cck;
 990                 struct statistics_tx tx;
 991                 struct statistics_bt_activity bt_activity;
 992         } accum_stats, delta_stats, max_delta_stats;
 993 #endif
 994
 995         /*
 996          * reporting the number of tids has AGG on. 0 means
 997          * no AGGREGATION
 998          */
 999         u8 agg_tids_count;
1000
1001         struct iwl_rx_phy_res last_phy_res;
1002         bool last_phy_res_valid;
1003
1004         struct completion firmware_loading_complete;
1005
1006         u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
1007         u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
1008
1009         /*
1010          * chain noise reset and gain commands are the
1011          * two extra calibration commands follows the standard
1012          * phy calibration commands
1013          */
1014         u8 phy_calib_chain_noise_reset_cmd;
1015         u8 phy_calib_chain_noise_gain_cmd;
1016
1017         /* counts reply_tx error */
1018         struct reply_tx_error_statistics reply_tx_stats;
1019         struct reply_agg_tx_error_statistics reply_agg_tx_stats;
1020         /* notification wait support */
1021         struct list_head notif_waits;
1022         spinlock_t notif_wait_lock;
1023         wait_queue_head_t notif_waitq;
1024
1025         /* remain-on-channel offload support */
1026         struct ieee80211_channel *hw_roc_channel;
1027         struct delayed_work hw_roc_disable_work;
1028         enum nl80211_channel_type hw_roc_chantype;
1029         int hw_roc_duration;
1030         bool hw_roc_setup, hw_roc_start_notified;
1031
1032         /* bt coex */
1033         u8 bt_enable_flag;
1034         u8 bt_status;
1035         u8 bt_traffic_load, last_bt_traffic_load;
1036         bool bt_ch_announce;
1037         bool bt_full_concurrent;
1038         bool bt_ant_couple_ok;
1039         __le32 kill_ack_mask;
1040         __le32 kill_cts_mask;
1041         __le16 bt_valid;
1042         u16 bt_on_thresh;
1043         u16 bt_duration;
1044         u16 dynamic_frag_thresh;
1045         u8 bt_ci_compliance;
1046         struct work_struct bt_traffic_change_work;
1047         bool bt_enable_pspoll;
1048         struct iwl_rxon_context *cur_rssi_ctx;
1049         bool bt_is_sco;
1050
1051         struct work_struct restart;
1052         struct work_struct scan_completed;
1053         struct work_struct abort_scan;
1054
1055         struct work_struct beacon_update;
1056         struct iwl_rxon_context *beacon_ctx;
1057         struct sk_buff *beacon_skb;
1058         void *beacon_cmd;
1059
1060         struct work_struct tt_work;
1061         struct work_struct ct_enter;
1062         struct work_struct ct_exit;
1063         struct work_struct start_internal_scan;
1064         struct work_struct tx_flush;
1065         struct work_struct bt_full_concurrency;
1066         struct work_struct bt_runtime_config;
1067
1068         struct delayed_work scan_check;
1069
1070         /* TX Power */
1071         s8 tx_power_user_lmt;
1072         s8 tx_power_device_lmt;
1073         s8 tx_power_lmt_in_half_dbm; /* max tx power in half-dBm format */
1074         s8 tx_power_next;
1075
1076 #ifdef CONFIG_IWLWIFI_DEBUGFS
1077         /* debugfs */
1078         u16 tx_traffic_idx;
1079         u16 rx_traffic_idx;
1080         u8 *tx_traffic;
1081         u8 *rx_traffic;
1082         struct dentry *debugfs_dir;
1083         u32 dbgfs_sram_offset, dbgfs_sram_len;
1084         bool disable_ht40;
1085         void *wowlan_sram;
1086 #endif /* CONFIG_IWLWIFI_DEBUGFS */
1087
1088         struct work_struct txpower_work;
1089         u32 disable_sens_cal;
1090         u32 disable_chain_noise_cal;
1091         struct work_struct run_time_calib_work;
1092         struct timer_list statistics_periodic;
1093         struct timer_list ucode_trace;
1094         struct timer_list watchdog;
1095
1096         struct iwl_event_log event_log;
1097
1098         struct led_classdev led;
1099         unsigned long blink_on, blink_off;
1100         bool led_registered;
1101 #ifdef CONFIG_IWLWIFI_DEVICE_SVTOOL
1102         struct iwl_testmode_trace testmode_trace;
1103         u32 tm_fixed_rate;
1104 #endif
1105
1106         /* WoWLAN GTK rekey data */
1107         u8 kck[NL80211_KCK_LEN], kek[NL80211_KEK_LEN];
1108         __le64 replay_ctr;
1109         __le16 last_seq_ctl;
1110         bool have_rekey_data;
1111 }; /*iwl_priv */
1112
1113 extern struct iwl_mod_params iwlagn_mod_params;
1114
1115 static inline struct iwl_rxon_context *
1116 iwl_rxon_ctx_from_vif(struct ieee80211_vif *vif)
1117 {
1118         struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
1119
1120         return vif_priv->ctx;
1121 }
1122
1123 #define for_each_context(priv, ctx)                             \
1124         for (ctx = &priv->contexts[IWL_RXON_CTX_BSS];           \
1125              ctx < &priv->contexts[NUM_IWL_RXON_CTX]; ctx++)    \
1126                 if (priv->shrd->valid_contexts & BIT(ctx->ctxid))
1127
1128 static inline int iwl_is_associated_ctx(struct iwl_rxon_context *ctx)
1129 {
1130         return (ctx->active.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
1131 }
1132
1133 static inline int iwl_is_associated(struct iwl_priv *priv,
1134                                     enum iwl_rxon_context_id ctxid)
1135 {
1136         return iwl_is_associated_ctx(&priv->contexts[ctxid]);
1137 }
1138
1139 static inline int iwl_is_any_associated(struct iwl_priv *priv)
1140 {
1141         struct iwl_rxon_context *ctx;
1142         for_each_context(priv, ctx)
1143                 if (iwl_is_associated_ctx(ctx))
1144                         return true;
1145         return false;
1146 }
1147
1148 static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
1149 {
1150         if (ch_info == NULL)
1151                 return 0;
1152         return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
1153 }
1154
1155 static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
1156 {
1157         return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
1158 }
1159
1160 static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
1161 {
1162         return ch_info->band == IEEE80211_BAND_5GHZ;
1163 }
1164
1165 static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
1166 {
1167         return ch_info->band == IEEE80211_BAND_2GHZ;
1168 }
1169
1170 static inline int is_channel_passive(const struct iwl_channel_info *ch)
1171 {
1172         return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1173 }
1174
1175 static inline int is_channel_ibss(const struct iwl_channel_info *ch)
1176 {
1177         return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1178 }
1179
1180 #endif                          /* __iwl_dev_h__ */