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/pci.h> /* for struct pci_device_id */
  36 #include <linux/kernel.h>
  37 #include <linux/wait.h>
  38 #include <linux/leds.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-fh.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-bus.h"
  52 #include "iwl-trans.h"
  53 #include "iwl-shared.h"
  54
  55 #define DRV_NAME        "iwlagn"
  56
  57 struct iwl_tx_queue;
  58
  59 /* CT-KILL constants */
  60 #define CT_KILL_THRESHOLD_LEGACY   110 /* in Celsius */
  61 #define CT_KILL_THRESHOLD          114 /* in Celsius */
  62 #define CT_KILL_EXIT_THRESHOLD     95  /* in Celsius */
  63
  64 /* Default noise level to report when noise measurement is not available.
  65  *   This may be because we're:
  66  *   1)  Not associated (4965, no beacon statistics being sent to driver)
  67  *   2)  Scanning (noise measurement does not apply to associated channel)
  68  *   3)  Receiving CCK (3945 delivers noise info only for OFDM frames)
  69  * Use default noise value of -127 ... this is below the range of measurable
  70  *   Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
  71  *   Also, -127 works better than 0 when averaging frames with/without
  72  *   noise info (e.g. averaging might be done in app); measured dBm values are
  73  *   always negative ... using a negative value as the default keeps all
  74  *   averages within an s8's (used in some apps) range of negative values. */
  75 #define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
  76
  77 /*
  78  * RTS threshold here is total size [2347] minus 4 FCS bytes
  79  * Per spec:
  80  *   a value of 0 means RTS on all data/management packets
  81  *   a value > max MSDU size means no RTS
  82  * else RTS for data/management frames where MPDU is larger
  83  *   than RTS value.
  84  */
  85 #define DEFAULT_RTS_THRESHOLD     2347U
  86 #define MIN_RTS_THRESHOLD         0U
  87 #define MAX_RTS_THRESHOLD         2347U
  88 #define MAX_MSDU_SIZE             2304U
  89 #define MAX_MPDU_SIZE             2346U
  90 #define DEFAULT_BEACON_INTERVAL   200U
  91 #define DEFAULT_SHORT_RETRY_LIMIT 7U
  92 #define DEFAULT_LONG_RETRY_LIMIT  4U
  93
  94 /* defined below */
  95 struct iwl_device_cmd;
  96
  97 struct iwl_cmd_meta {
  98         /* only for SYNC commands, iff the reply skb is wanted */
  99         struct iwl_host_cmd *source;
 100         /*
 101          * only for ASYNC commands
 102          * (which is somewhat stupid -- look at iwl-sta.c for instance
 103          * which duplicates a bunch of code because the callback isn't
 104          * invoked for SYNC commands, if it were and its result passed
 105          * through it would be simpler...)
 106          */
 107         void (*callback)(struct iwl_priv *priv,
 108                          struct iwl_device_cmd *cmd,
 109                          struct iwl_rx_packet *pkt);
 110
 111         u32 flags;
 112
 113         DEFINE_DMA_UNMAP_ADDR(mapping);
 114         DEFINE_DMA_UNMAP_LEN(len);
 115 };
 116
 117 /*
 118  * Generic queue structure
 119  *
 120  * Contains common data for Rx and Tx queues.
 121  *
 122  * Note the difference between n_bd and n_window: the hardware
 123  * always assumes 256 descriptors, so n_bd is always 256 (unless
 124  * there might be HW changes in the future). For the normal TX
 125  * queues, n_window, which is the size of the software queue data
 126  * is also 256; however, for the command queue, n_window is only
 127  * 32 since we don't need so many commands pending. Since the HW
 128  * still uses 256 BDs for DMA though, n_bd stays 256. As a result,
 129  * the software buffers (in the variables @meta, @txb in struct
 130  * iwl_tx_queue) only have 32 entries, while the HW buffers (@tfds
 131  * in the same struct) have 256.
 132  * This means that we end up with the following:
 133  *  HW entries: | 0 | ... | N * 32 | ... | N * 32 + 31 | ... | 255 |
 134  *  SW entries:           | 0      | ... | 31          |
 135  * where N is a number between 0 and 7. This means that the SW
 136  * data is a window overlayed over the HW queue.
 137  */
 138 struct iwl_queue {
 139         int n_bd;              /* number of BDs in this queue */
 140         int write_ptr;       /* 1-st empty entry (index) host_w*/
 141         int read_ptr;         /* last used entry (index) host_r*/
 142         /* use for monitoring and recovering the stuck queue */
 143         dma_addr_t dma_addr;   /* physical addr for BD's */
 144         int n_window;          /* safe queue window */
 145         u32 id;
 146         int low_mark;          /* low watermark, resume queue if free
 147                                 * space more than this */
 148         int high_mark;         /* high watermark, stop queue if free
 149                                 * space less than this */
 150 };
 151
 152 /* One for each TFD */
 153 struct iwl_tx_info {
 154         struct sk_buff *skb;
 155         struct iwl_rxon_context *ctx;
 156 };
 157
 158 /**
 159  * struct iwl_tx_queue - Tx Queue for DMA
 160  * @q: generic Rx/Tx queue descriptor
 161  * @bd: base of circular buffer of TFDs
 162  * @cmd: array of command/TX buffer pointers
 163  * @meta: array of meta data for each command/tx buffer
 164  * @dma_addr_cmd: physical address of cmd/tx buffer array
 165  * @txb: array of per-TFD driver data
 166  * @time_stamp: time (in jiffies) of last read_ptr change
 167  * @need_update: indicates need to update read/write index
 168  * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
 169  *
 170  * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
 171  * descriptors) and required locking structures.
 172  */
 173 #define TFD_TX_CMD_SLOTS 256
 174 #define TFD_CMD_SLOTS 32
 175
 176 struct iwl_tx_queue {
 177         struct iwl_queue q;
 178         struct iwl_tfd *tfds;
 179         struct iwl_device_cmd **cmd;
 180         struct iwl_cmd_meta *meta;
 181         struct iwl_tx_info *txb;
 182         unsigned long time_stamp;
 183         u8 need_update;
 184         u8 sched_retry;
 185         u8 active;
 186         u8 swq_id;
 187 };
 188
 189 #define IWL_NUM_SCAN_RATES         (2)
 190
 191 /*
 192  * One for each channel, holds all channel setup data
 193  * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
 194  *     with one another!
 195  */
 196 struct iwl_channel_info {
 197         struct iwl_eeprom_channel eeprom;       /* EEPROM regulatory limit */
 198         struct iwl_eeprom_channel ht40_eeprom;  /* EEPROM regulatory limit for
 199                                                  * HT40 channel */
 200
 201         u8 channel;       /* channel number */
 202         u8 flags;         /* flags copied from EEPROM */
 203         s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
 204         s8 curr_txpow;    /* (dBm) regulatory/spectrum/user (not h/w) limit */
 205         s8 min_power;     /* always 0 */
 206         s8 scan_power;    /* (dBm) regul. eeprom, direct scans, any rate */
 207
 208         u8 group_index;   /* 0-4, maps channel to group1/2/3/4/5 */
 209         u8 band_index;    /* 0-4, maps channel to band1/2/3/4/5 */
 210         enum ieee80211_band band;
 211
 212         /* HT40 channel info */
 213         s8 ht40_max_power_avg;  /* (dBm) regul. eeprom, normal Tx, any rate */
 214         u8 ht40_flags;          /* flags copied from EEPROM */
 215         u8 ht40_extension_channel; /* HT_IE_EXT_CHANNEL_* */
 216 };
 217
 218 #define IWL_TX_FIFO_BK          0       /* shared */
 219 #define IWL_TX_FIFO_BE          1
 220 #define IWL_TX_FIFO_VI          2       /* shared */
 221 #define IWL_TX_FIFO_VO          3
 222 #define IWL_TX_FIFO_BK_IPAN     IWL_TX_FIFO_BK
 223 #define IWL_TX_FIFO_BE_IPAN     4
 224 #define IWL_TX_FIFO_VI_IPAN     IWL_TX_FIFO_VI
 225 #define IWL_TX_FIFO_VO_IPAN     5
 226 /* re-uses the VO FIFO, uCode will properly flush/schedule */
 227 #define IWL_TX_FIFO_AUX         5
 228 #define IWL_TX_FIFO_UNUSED      -1
 229
 230 /* AUX (TX during scan dwell) queue */
 231 #define IWL_AUX_QUEUE           10
 232
 233 /*
 234  * Minimum number of queues. MAX_NUM is defined in hw specific files.
 235  * Set the minimum to accommodate
 236  *  - 4 standard TX queues
 237  *  - the command queue
 238  *  - 4 PAN TX queues
 239  *  - the PAN multicast queue, and
 240  *  - the AUX (TX during scan dwell) queue.
 241  */
 242 #define IWL_MIN_NUM_QUEUES      11
 243
 244 /*
 245  * Command queue depends on iPAN support.
 246  */
 247 #define IWL_DEFAULT_CMD_QUEUE_NUM       4
 248 #define IWL_IPAN_CMD_QUEUE_NUM          9
 249
 250 /*
 251  * This queue number is required for proper operation
 252  * because the ucode will stop/start the scheduler as
 253  * required.
 254  */
 255 #define IWL_IPAN_MCAST_QUEUE            8
 256
 257 #define IEEE80211_DATA_LEN              2304
 258 #define IEEE80211_4ADDR_LEN             30
 259 #define IEEE80211_HLEN                  (IEEE80211_4ADDR_LEN)
 260 #define IEEE80211_FRAME_LEN             (IEEE80211_DATA_LEN + IEEE80211_HLEN)
 261
 262
 263 #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
 264 #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
 265 #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
 266
 267 enum {
 268         CMD_SYNC = 0,
 269         CMD_ASYNC = BIT(0),
 270         CMD_WANT_SKB = BIT(1),
 271         CMD_ON_DEMAND = BIT(2),
 272 };
 273
 274 #define DEF_CMD_PAYLOAD_SIZE 320
 275
 276 /**
 277  * struct iwl_device_cmd
 278  *
 279  * For allocation of the command and tx queues, this establishes the overall
 280  * size of the largest command we send to uCode, except for commands that
 281  * aren't fully copied and use other TFD space.
 282  */
 283 struct iwl_device_cmd {
 284         struct iwl_cmd_header hdr;      /* uCode API */
 285         union {
 286                 u32 flags;
 287                 u8 val8;
 288                 u16 val16;
 289                 u32 val32;
 290                 struct iwl_tx_cmd tx;
 291                 struct iwl6000_channel_switch_cmd chswitch;
 292                 u8 payload[DEF_CMD_PAYLOAD_SIZE];
 293         } __packed cmd;
 294 } __packed;
 295
 296 #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_device_cmd))
 297
 298 #define IWL_MAX_CMD_TFDS        2
 299
 300 enum iwl_hcmd_dataflag {
 301         IWL_HCMD_DFL_NOCOPY     = BIT(0),
 302 };
 303
 304 /**
 305  * struct iwl_host_cmd - Host command to the uCode
 306  * @data: array of chunks that composes the data of the host command
 307  * @reply_page: pointer to the page that holds the response to the host command
 308  * @callback:
 309  * @flags: can be CMD_* note CMD_WANT_SKB is incompatible withe CMD_ASYNC
 310  * @len: array of the lenths of the chunks in data
 311  * @dataflags:
 312  * @id: id of the host command
 313  */
 314 struct iwl_host_cmd {
 315         const void *data[IWL_MAX_CMD_TFDS];
 316         unsigned long reply_page;
 317         void (*callback)(struct iwl_priv *priv,
 318                          struct iwl_device_cmd *cmd,
 319                          struct iwl_rx_packet *pkt);
 320         u32 flags;
 321         u16 len[IWL_MAX_CMD_TFDS];
 322         u8 dataflags[IWL_MAX_CMD_TFDS];
 323         u8 id;
 324 };
 325
 326 #define SUP_RATE_11A_MAX_NUM_CHANNELS  8
 327 #define SUP_RATE_11B_MAX_NUM_CHANNELS  4
 328 #define SUP_RATE_11G_MAX_NUM_CHANNELS  12
 329
 330 #define IWL_SUPPORTED_RATES_IE_LEN         8
 331
 332 #define MAX_TID_COUNT        9
 333
 334 #define IWL_INVALID_RATE     0xFF
 335 #define IWL_INVALID_VALUE    -1
 336
 337 /**
 338  * struct iwl_ht_agg -- aggregation status while waiting for block-ack
 339  * @txq_id: Tx queue used for Tx attempt
 340  * @frame_count: # frames attempted by Tx command
 341  * @wait_for_ba: Expect block-ack before next Tx reply
 342  * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
 343  * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
 344  * @bitmap1: High order, one bit for each frame pending ACK in Tx window
 345  * @rate_n_flags: Rate at which Tx was attempted
 346  *
 347  * If REPLY_TX indicates that aggregation was attempted, driver must wait
 348  * for block ack (REPLY_COMPRESSED_BA).  This struct stores tx reply info
 349  * until block ack arrives.
 350  */
 351 struct iwl_ht_agg {
 352         u16 txq_id;
 353         u16 frame_count;
 354         u16 wait_for_ba;
 355         u16 start_idx;
 356         u64 bitmap;
 357         u32 rate_n_flags;
 358 #define IWL_AGG_OFF 0
 359 #define IWL_AGG_ON 1
 360 #define IWL_EMPTYING_HW_QUEUE_ADDBA 2
 361 #define IWL_EMPTYING_HW_QUEUE_DELBA 3
 362         u8 state;
 363         u8 tx_fifo;
 364 };
 365
 366
 367 struct iwl_tid_data {
 368         u16 seq_number; /* agn only */
 369         u16 tfds_in_queue;
 370         struct iwl_ht_agg agg;
 371 };
 372
 373 union iwl_ht_rate_supp {
 374         u16 rates;
 375         struct {
 376                 u8 siso_rate;
 377                 u8 mimo_rate;
 378         };
 379 };
 380
 381 #define CFG_HT_RX_AMPDU_FACTOR_8K   (0x0)
 382 #define CFG_HT_RX_AMPDU_FACTOR_16K  (0x1)
 383 #define CFG_HT_RX_AMPDU_FACTOR_32K  (0x2)
 384 #define CFG_HT_RX_AMPDU_FACTOR_64K  (0x3)
 385 #define CFG_HT_RX_AMPDU_FACTOR_DEF  CFG_HT_RX_AMPDU_FACTOR_64K
 386 #define CFG_HT_RX_AMPDU_FACTOR_MAX  CFG_HT_RX_AMPDU_FACTOR_64K
 387 #define CFG_HT_RX_AMPDU_FACTOR_MIN  CFG_HT_RX_AMPDU_FACTOR_8K
 388
 389 /*
 390  * Maximal MPDU density for TX aggregation
 391  * 4 - 2us density
 392  * 5 - 4us density
 393  * 6 - 8us density
 394  * 7 - 16us density
 395  */
 396 #define CFG_HT_MPDU_DENSITY_2USEC   (0x4)
 397 #define CFG_HT_MPDU_DENSITY_4USEC   (0x5)
 398 #define CFG_HT_MPDU_DENSITY_8USEC   (0x6)
 399 #define CFG_HT_MPDU_DENSITY_16USEC  (0x7)
 400 #define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_4USEC
 401 #define CFG_HT_MPDU_DENSITY_MAX CFG_HT_MPDU_DENSITY_16USEC
 402 #define CFG_HT_MPDU_DENSITY_MIN     (0x1)
 403
 404 struct iwl_ht_config {
 405         bool single_chain_sufficient;
 406         enum ieee80211_smps_mode smps; /* current smps mode */
 407 };
 408
 409 /* QoS structures */
 410 struct iwl_qos_info {
 411         int qos_active;
 412         struct iwl_qosparam_cmd def_qos_parm;
 413 };
 414
 415 /*
 416  * Structure should be accessed with sta_lock held. When station addition
 417  * is in progress (IWL_STA_UCODE_INPROGRESS) it is possible to access only
 418  * the commands (iwl_addsta_cmd and iwl_link_quality_cmd) without sta_lock
 419  * held.
 420  */
 421 struct iwl_station_entry {
 422         struct iwl_addsta_cmd sta;
 423         struct iwl_tid_data tid[MAX_TID_COUNT];
 424         u8 used, ctxid;
 425         struct iwl_link_quality_cmd *lq;
 426 };
 427
 428 struct iwl_station_priv_common {
 429         struct iwl_rxon_context *ctx;
 430         u8 sta_id;
 431 };
 432
 433 /*
 434  * iwl_station_priv: Driver's private station information
 435  *
 436  * When mac80211 creates a station it reserves some space (hw->sta_data_size)
 437  * in the structure for use by driver. This structure is places in that
 438  * space.
 439  */
 440 struct iwl_station_priv {
 441         struct iwl_station_priv_common common;
 442         struct iwl_lq_sta lq_sta;
 443         atomic_t pending_frames;
 444         bool client;
 445         bool asleep;
 446         u8 max_agg_bufsize;
 447 };
 448
 449 /**
 450  * struct iwl_vif_priv - driver's private per-interface information
 451  *
 452  * When mac80211 allocates a virtual interface, it can allocate
 453  * space for us to put data into.
 454  */
 455 struct iwl_vif_priv {
 456         struct iwl_rxon_context *ctx;
 457         u8 ibss_bssid_sta_id;
 458 };
 459
 460 /* one for each uCode image (inst/data, boot/init/runtime) */
 461 struct fw_desc {
 462         void *v_addr;           /* access by driver */
 463         dma_addr_t p_addr;      /* access by card's busmaster DMA */
 464         u32 len;                /* bytes */
 465 };
 466
 467 struct fw_img {
 468         struct fw_desc code, data;
 469 };
 470
 471 /* v1/v2 uCode file layout */
 472 struct iwl_ucode_header {
 473         __le32 ver;     /* major/minor/API/serial */
 474         union {
 475                 struct {
 476                         __le32 inst_size;       /* bytes of runtime code */
 477                         __le32 data_size;       /* bytes of runtime data */
 478                         __le32 init_size;       /* bytes of init code */
 479                         __le32 init_data_size;  /* bytes of init data */
 480                         __le32 boot_size;       /* bytes of bootstrap code */
 481                         u8 data[0];             /* in same order as sizes */
 482                 } v1;
 483                 struct {
 484                         __le32 build;           /* build number */
 485                         __le32 inst_size;       /* bytes of runtime code */
 486                         __le32 data_size;       /* bytes of runtime data */
 487                         __le32 init_size;       /* bytes of init code */
 488                         __le32 init_data_size;  /* bytes of init data */
 489                         __le32 boot_size;       /* bytes of bootstrap code */
 490                         u8 data[0];             /* in same order as sizes */
 491                 } v2;
 492         } u;
 493 };
 494
 495 /*
 496  * new TLV uCode file layout
 497  *
 498  * The new TLV file format contains TLVs, that each specify
 499  * some piece of data. To facilitate "groups", for example
 500  * different instruction image with different capabilities,
 501  * bundled with the same init image, an alternative mechanism
 502  * is provided:
 503  * When the alternative field is 0, that means that the item
 504  * is always valid. When it is non-zero, then it is only
 505  * valid in conjunction with items of the same alternative,
 506  * in which case the driver (user) selects one alternative
 507  * to use.
 508  */
 509
 510 enum iwl_ucode_tlv_type {
 511         IWL_UCODE_TLV_INVALID           = 0, /* unused */
 512         IWL_UCODE_TLV_INST              = 1,
 513         IWL_UCODE_TLV_DATA              = 2,
 514         IWL_UCODE_TLV_INIT              = 3,
 515         IWL_UCODE_TLV_INIT_DATA         = 4,
 516         IWL_UCODE_TLV_BOOT              = 5,
 517         IWL_UCODE_TLV_PROBE_MAX_LEN     = 6, /* a u32 value */
 518         IWL_UCODE_TLV_PAN               = 7,
 519         IWL_UCODE_TLV_RUNT_EVTLOG_PTR   = 8,
 520         IWL_UCODE_TLV_RUNT_EVTLOG_SIZE  = 9,
 521         IWL_UCODE_TLV_RUNT_ERRLOG_PTR   = 10,
 522         IWL_UCODE_TLV_INIT_EVTLOG_PTR   = 11,
 523         IWL_UCODE_TLV_INIT_EVTLOG_SIZE  = 12,
 524         IWL_UCODE_TLV_INIT_ERRLOG_PTR   = 13,
 525         IWL_UCODE_TLV_ENHANCE_SENS_TBL  = 14,
 526         IWL_UCODE_TLV_PHY_CALIBRATION_SIZE = 15,
 527         IWL_UCODE_TLV_WOWLAN_INST       = 16,
 528         IWL_UCODE_TLV_WOWLAN_DATA       = 17,
 529         IWL_UCODE_TLV_FLAGS             = 18,
 530 };
 531
 532 /**
 533  * enum iwl_ucode_tlv_flag - ucode API flags
 534  * @IWL_UCODE_TLV_FLAGS_PAN: This is PAN capable microcode; this previously
 535  *      was a separate TLV but moved here to save space.
 536  * @IWL_UCODE_TLV_FLAGS_NEWSCAN: new uCode scan behaviour on hidden SSID,
 537  *      treats good CRC threshold as a boolean
 538  * @IWL_UCODE_TLV_FLAGS_MFP: This uCode image supports MFP (802.11w).
 539  * @IWL_UCODE_TLV_FLAGS_P2P: This uCode image supports P2P.
 540  */
 541 enum iwl_ucode_tlv_flag {
 542         IWL_UCODE_TLV_FLAGS_PAN         = BIT(0),
 543         IWL_UCODE_TLV_FLAGS_NEWSCAN     = BIT(1),
 544         IWL_UCODE_TLV_FLAGS_MFP         = BIT(2),
 545         IWL_UCODE_TLV_FLAGS_P2P         = BIT(3),
 546 };
 547
 548 struct iwl_ucode_tlv {
 549         __le16 type;            /* see above */
 550         __le16 alternative;     /* see comment */
 551         __le32 length;          /* not including type/length fields */
 552         u8 data[0];
 553 } __packed;
 554
 555 #define IWL_TLV_UCODE_MAGIC     0x0a4c5749
 556
 557 struct iwl_tlv_ucode_header {
 558         /*
 559          * The TLV style ucode header is distinguished from
 560          * the v1/v2 style header by first four bytes being
 561          * zero, as such is an invalid combination of
 562          * major/minor/API/serial versions.
 563          */
 564         __le32 zero;
 565         __le32 magic;
 566         u8 human_readable[64];
 567         __le32 ver;             /* major/minor/API/serial */
 568         __le32 build;
 569         __le64 alternatives;    /* bitmask of valid alternatives */
 570         /*
 571          * The data contained herein has a TLV layout,
 572          * see above for the TLV header and types.
 573          * Note that each TLV is padded to a length
 574          * that is a multiple of 4 for alignment.
 575          */
 576         u8 data[0];
 577 };
 578
 579 struct iwl_sensitivity_ranges {
 580         u16 min_nrg_cck;
 581         u16 max_nrg_cck;
 582
 583         u16 nrg_th_cck;
 584         u16 nrg_th_ofdm;
 585
 586         u16 auto_corr_min_ofdm;
 587         u16 auto_corr_min_ofdm_mrc;
 588         u16 auto_corr_min_ofdm_x1;
 589         u16 auto_corr_min_ofdm_mrc_x1;
 590
 591         u16 auto_corr_max_ofdm;
 592         u16 auto_corr_max_ofdm_mrc;
 593         u16 auto_corr_max_ofdm_x1;
 594         u16 auto_corr_max_ofdm_mrc_x1;
 595
 596         u16 auto_corr_max_cck;
 597         u16 auto_corr_max_cck_mrc;
 598         u16 auto_corr_min_cck;
 599         u16 auto_corr_min_cck_mrc;
 600
 601         u16 barker_corr_th_min;
 602         u16 barker_corr_th_min_mrc;
 603         u16 nrg_th_cca;
 604 };
 605
 606
 607 #define KELVIN_TO_CELSIUS(x) ((x)-273)
 608 #define CELSIUS_TO_KELVIN(x) ((x)+273)
 609
 610
 611 /******************************************************************************
 612  *
 613  * Functions implemented in core module which are forward declared here
 614  * for use by iwl-[4-5].c
 615  *
 616  * NOTE:  The implementation of these functions are not hardware specific
 617  * which is why they are in the core module files.
 618  *
 619  * Naming convention --
 620  * iwl_         <-- Is part of iwlwifi
 621  * iwlXXXX_     <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
 622  *
 623  ****************************************************************************/
 624 extern void iwl_update_chain_flags(struct iwl_priv *priv);
 625 extern const u8 iwl_bcast_addr[ETH_ALEN];
 626 extern int iwl_queue_space(const struct iwl_queue *q);
 627 static inline int iwl_queue_used(const struct iwl_queue *q, int i)
 628 {
 629         return q->write_ptr >= q->read_ptr ?
 630                 (i >= q->read_ptr && i < q->write_ptr) :
 631                 !(i < q->read_ptr && i >= q->write_ptr);
 632 }
 633
 634
 635 static inline u8 get_cmd_index(struct iwl_queue *q, u32 index)
 636 {
 637         return index & (q->n_window - 1);
 638 }
 639
 640
 641 struct iwl_dma_ptr {
 642         dma_addr_t dma;
 643         void *addr;
 644         size_t size;
 645 };
 646
 647 #define IWL_OPERATION_MODE_AUTO     0
 648 #define IWL_OPERATION_MODE_HT_ONLY  1
 649 #define IWL_OPERATION_MODE_MIXED    2
 650 #define IWL_OPERATION_MODE_20MHZ    3
 651
 652 #define IWL_TX_CRC_SIZE 4
 653 #define IWL_TX_DELIMITER_SIZE 4
 654
 655 #define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
 656
 657 /* Sensitivity and chain noise calibration */
 658 #define INITIALIZATION_VALUE            0xFFFF
 659 #define IWL_CAL_NUM_BEACONS             16
 660 #define MAXIMUM_ALLOWED_PATHLOSS        15
 661
 662 #define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
 663
 664 #define MAX_FA_OFDM  50
 665 #define MIN_FA_OFDM  5
 666 #define MAX_FA_CCK   50
 667 #define MIN_FA_CCK   5
 668
 669 #define AUTO_CORR_STEP_OFDM       1
 670
 671 #define AUTO_CORR_STEP_CCK     3
 672 #define AUTO_CORR_MAX_TH_CCK   160
 673
 674 #define NRG_DIFF               2
 675 #define NRG_STEP_CCK           2
 676 #define NRG_MARGIN             8
 677 #define MAX_NUMBER_CCK_NO_FA 100
 678
 679 #define AUTO_CORR_CCK_MIN_VAL_DEF    (125)
 680
 681 #define CHAIN_A             0
 682 #define CHAIN_B             1
 683 #define CHAIN_C             2
 684 #define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
 685 #define ALL_BAND_FILTER                 0xFF00
 686 #define IN_BAND_FILTER                  0xFF
 687 #define MIN_AVERAGE_NOISE_MAX_VALUE     0xFFFFFFFF
 688
 689 #define NRG_NUM_PREV_STAT_L     20
 690 #define NUM_RX_CHAINS           3
 691
 692 enum iwlagn_false_alarm_state {
 693         IWL_FA_TOO_MANY = 0,
 694         IWL_FA_TOO_FEW = 1,
 695         IWL_FA_GOOD_RANGE = 2,
 696 };
 697
 698 enum iwlagn_chain_noise_state {
 699         IWL_CHAIN_NOISE_ALIVE = 0,  /* must be 0 */
 700         IWL_CHAIN_NOISE_ACCUMULATE,
 701         IWL_CHAIN_NOISE_CALIBRATED,
 702         IWL_CHAIN_NOISE_DONE,
 703 };
 704
 705
 706 /*
 707  * enum iwl_calib
 708  * defines the order in which results of initial calibrations
 709  * should be sent to the runtime uCode
 710  */
 711 enum iwl_calib {
 712         IWL_CALIB_XTAL,
 713         IWL_CALIB_DC,
 714         IWL_CALIB_LO,
 715         IWL_CALIB_TX_IQ,
 716         IWL_CALIB_TX_IQ_PERD,
 717         IWL_CALIB_BASE_BAND,
 718         IWL_CALIB_TEMP_OFFSET,
 719         IWL_CALIB_MAX
 720 };
 721
 722 /* Opaque calibration results */
 723 struct iwl_calib_result {
 724         void *buf;
 725         size_t buf_len;
 726 };
 727
 728 /* Sensitivity calib data */
 729 struct iwl_sensitivity_data {
 730         u32 auto_corr_ofdm;
 731         u32 auto_corr_ofdm_mrc;
 732         u32 auto_corr_ofdm_x1;
 733         u32 auto_corr_ofdm_mrc_x1;
 734         u32 auto_corr_cck;
 735         u32 auto_corr_cck_mrc;
 736
 737         u32 last_bad_plcp_cnt_ofdm;
 738         u32 last_fa_cnt_ofdm;
 739         u32 last_bad_plcp_cnt_cck;
 740         u32 last_fa_cnt_cck;
 741
 742         u32 nrg_curr_state;
 743         u32 nrg_prev_state;
 744         u32 nrg_value[10];
 745         u8  nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
 746         u32 nrg_silence_ref;
 747         u32 nrg_energy_idx;
 748         u32 nrg_silence_idx;
 749         u32 nrg_th_cck;
 750         s32 nrg_auto_corr_silence_diff;
 751         u32 num_in_cck_no_fa;
 752         u32 nrg_th_ofdm;
 753
 754         u16 barker_corr_th_min;
 755         u16 barker_corr_th_min_mrc;
 756         u16 nrg_th_cca;
 757 };
 758
 759 /* Chain noise (differential Rx gain) calib data */
 760 struct iwl_chain_noise_data {
 761         u32 active_chains;
 762         u32 chain_noise_a;
 763         u32 chain_noise_b;
 764         u32 chain_noise_c;
 765         u32 chain_signal_a;
 766         u32 chain_signal_b;
 767         u32 chain_signal_c;
 768         u16 beacon_count;
 769         u8 disconn_array[NUM_RX_CHAINS];
 770         u8 delta_gain_code[NUM_RX_CHAINS];
 771         u8 radio_write;
 772         u8 state;
 773 };
 774
 775 #define EEPROM_SEM_TIMEOUT 10           /* milliseconds */
 776 #define EEPROM_SEM_RETRY_LIMIT 1000     /* number of attempts (not time) */
 777
 778 #define IWL_TRAFFIC_ENTRIES     (256)
 779 #define IWL_TRAFFIC_ENTRY_SIZE  (64)
 780
 781 enum {
 782         MEASUREMENT_READY = (1 << 0),
 783         MEASUREMENT_ACTIVE = (1 << 1),
 784 };
 785
 786 enum iwl_nvm_type {
 787         NVM_DEVICE_TYPE_EEPROM = 0,
 788         NVM_DEVICE_TYPE_OTP,
 789 };
 790
 791 /*
 792  * Two types of OTP memory access modes
 793  *   IWL_OTP_ACCESS_ABSOLUTE - absolute address mode,
 794  *                              based on physical memory addressing
 795  *   IWL_OTP_ACCESS_RELATIVE - relative address mode,
 796  *                             based on logical memory addressing
 797  */
 798 enum iwl_access_mode {
 799         IWL_OTP_ACCESS_ABSOLUTE,
 800         IWL_OTP_ACCESS_RELATIVE,
 801 };
 802
 803 /**
 804  * enum iwl_pa_type - Power Amplifier type
 805  * @IWL_PA_SYSTEM:  based on uCode configuration
 806  * @IWL_PA_INTERNAL: use Internal only
 807  */
 808 enum iwl_pa_type {
 809         IWL_PA_SYSTEM = 0,
 810         IWL_PA_INTERNAL = 1,
 811 };
 812
 813 /* interrupt statistics */
 814 struct isr_statistics {
 815         u32 hw;
 816         u32 sw;
 817         u32 err_code;
 818         u32 sch;
 819         u32 alive;
 820         u32 rfkill;
 821         u32 ctkill;
 822         u32 wakeup;
 823         u32 rx;
 824         u32 rx_handlers[REPLY_MAX];
 825         u32 tx;
 826         u32 unhandled;
 827 };
 828
 829 /* reply_tx_statistics (for _agn devices) */
 830 struct reply_tx_error_statistics {
 831         u32 pp_delay;
 832         u32 pp_few_bytes;
 833         u32 pp_bt_prio;
 834         u32 pp_quiet_period;
 835         u32 pp_calc_ttak;
 836         u32 int_crossed_retry;
 837         u32 short_limit;
 838         u32 long_limit;
 839         u32 fifo_underrun;
 840         u32 drain_flow;
 841         u32 rfkill_flush;
 842         u32 life_expire;
 843         u32 dest_ps;
 844         u32 host_abort;
 845         u32 bt_retry;
 846         u32 sta_invalid;
 847         u32 frag_drop;
 848         u32 tid_disable;
 849         u32 fifo_flush;
 850         u32 insuff_cf_poll;
 851         u32 fail_hw_drop;
 852         u32 sta_color_mismatch;
 853         u32 unknown;
 854 };
 855
 856 /* reply_agg_tx_statistics (for _agn devices) */
 857 struct reply_agg_tx_error_statistics {
 858         u32 underrun;
 859         u32 bt_prio;
 860         u32 few_bytes;
 861         u32 abort;
 862         u32 last_sent_ttl;
 863         u32 last_sent_try;
 864         u32 last_sent_bt_kill;
 865         u32 scd_query;
 866         u32 bad_crc32;
 867         u32 response;
 868         u32 dump_tx;
 869         u32 delay_tx;
 870         u32 unknown;
 871 };
 872
 873 /* management statistics */
 874 enum iwl_mgmt_stats {
 875         MANAGEMENT_ASSOC_REQ = 0,
 876         MANAGEMENT_ASSOC_RESP,
 877         MANAGEMENT_REASSOC_REQ,
 878         MANAGEMENT_REASSOC_RESP,
 879         MANAGEMENT_PROBE_REQ,
 880         MANAGEMENT_PROBE_RESP,
 881         MANAGEMENT_BEACON,
 882         MANAGEMENT_ATIM,
 883         MANAGEMENT_DISASSOC,
 884         MANAGEMENT_AUTH,
 885         MANAGEMENT_DEAUTH,
 886         MANAGEMENT_ACTION,
 887         MANAGEMENT_MAX,
 888 };
 889 /* control statistics */
 890 enum iwl_ctrl_stats {
 891         CONTROL_BACK_REQ =  0,
 892         CONTROL_BACK,
 893         CONTROL_PSPOLL,
 894         CONTROL_RTS,
 895         CONTROL_CTS,
 896         CONTROL_ACK,
 897         CONTROL_CFEND,
 898         CONTROL_CFENDACK,
 899         CONTROL_MAX,
 900 };
 901
 902 struct traffic_stats {
 903 #ifdef CONFIG_IWLWIFI_DEBUGFS
 904         u32 mgmt[MANAGEMENT_MAX];
 905         u32 ctrl[CONTROL_MAX];
 906         u32 data_cnt;
 907         u64 data_bytes;
 908 #endif
 909 };
 910
 911 /*
 912  * schedule the timer to wake up every UCODE_TRACE_PERIOD milliseconds
 913  * to perform continuous uCode event logging operation if enabled
 914  */
 915 #define UCODE_TRACE_PERIOD (100)
 916
 917 /*
 918  * iwl_event_log: current uCode event log position
 919  *
 920  * @ucode_trace: enable/disable ucode continuous trace timer
 921  * @num_wraps: how many times the event buffer wraps
 922  * @next_entry:  the entry just before the next one that uCode would fill
 923  * @non_wraps_count: counter for no wrap detected when dump ucode events
 924  * @wraps_once_count: counter for wrap once detected when dump ucode events
 925  * @wraps_more_count: counter for wrap more than once detected
 926  *                    when dump ucode events
 927  */
 928 struct iwl_event_log {
 929         bool ucode_trace;
 930         u32 num_wraps;
 931         u32 next_entry;
 932         int non_wraps_count;
 933         int wraps_once_count;
 934         int wraps_more_count;
 935 };
 936
 937 /*
 938  * host interrupt timeout value
 939  * used with setting interrupt coalescing timer
 940  * the CSR_INT_COALESCING is an 8 bit register in 32-usec unit
 941  *
 942  * default interrupt coalescing timer is 64 x 32 = 2048 usecs
 943  * default interrupt coalescing calibration timer is 16 x 32 = 512 usecs
 944  */
 945 #define IWL_HOST_INT_TIMEOUT_MAX        (0xFF)
 946 #define IWL_HOST_INT_TIMEOUT_DEF        (0x40)
 947 #define IWL_HOST_INT_TIMEOUT_MIN        (0x0)
 948 #define IWL_HOST_INT_CALIB_TIMEOUT_MAX  (0xFF)
 949 #define IWL_HOST_INT_CALIB_TIMEOUT_DEF  (0x10)
 950 #define IWL_HOST_INT_CALIB_TIMEOUT_MIN  (0x0)
 951
 952 /*
 953  * This is the threshold value of plcp error rate per 100mSecs.  It is
 954  * used to set and check for the validity of plcp_delta.
 955  */
 956 #define IWL_MAX_PLCP_ERR_THRESHOLD_MIN  (1)
 957 #define IWL_MAX_PLCP_ERR_THRESHOLD_DEF  (50)
 958 #define IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF     (100)
 959 #define IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF (200)
 960 #define IWL_MAX_PLCP_ERR_THRESHOLD_MAX  (255)
 961 #define IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE      (0)
 962
 963 #define IWL_DELAY_NEXT_FORCE_RF_RESET  (HZ*3)
 964 #define IWL_DELAY_NEXT_FORCE_FW_RELOAD (HZ*5)
 965
 966 /* TX queue watchdog timeouts in mSecs */
 967 #define IWL_DEF_WD_TIMEOUT      (2000)
 968 #define IWL_LONG_WD_TIMEOUT     (10000)
 969 #define IWL_MAX_WD_TIMEOUT      (120000)
 970
 971 /* BT Antenna Coupling Threshold (dB) */
 972 #define IWL_BT_ANTENNA_COUPLING_THRESHOLD       (35)
 973
 974 /* Firmware reload counter and Timestamp */
 975 #define IWL_MIN_RELOAD_DURATION         1000 /* 1000 ms */
 976 #define IWL_MAX_CONTINUE_RELOAD_CNT     4
 977
 978
 979 enum iwl_reset {
 980         IWL_RF_RESET = 0,
 981         IWL_FW_RESET,
 982         IWL_MAX_FORCE_RESET,
 983 };
 984
 985 struct iwl_force_reset {
 986         int reset_request_count;
 987         int reset_success_count;
 988         int reset_reject_count;
 989         unsigned long reset_duration;
 990         unsigned long last_force_reset_jiffies;
 991 };
 992
 993 /* extend beacon time format bit shifting  */
 994 /*
 995  * for _agn devices
 996  * bits 31:22 - extended
 997  * bits 21:0  - interval
 998  */
 999 #define IWLAGN_EXT_BEACON_TIME_POS      22
1000
1001 /**
1002  * struct iwl_notification_wait - notification wait entry
1003  * @list: list head for global list
1004  * @fn: function called with the notification
1005  * @cmd: command ID
1006  *
1007  * This structure is not used directly, to wait for a
1008  * notification declare it on the stack, and call
1009  * iwlagn_init_notification_wait() with appropriate
1010  * parameters. Then do whatever will cause the ucode
1011  * to notify the driver, and to wait for that then
1012  * call iwlagn_wait_notification().
1013  *
1014  * Each notification is one-shot. If at some point we
1015  * need to support multi-shot notifications (which
1016  * can't be allocated on the stack) we need to modify
1017  * the code for them.
1018  */
1019 struct iwl_notification_wait {
1020         struct list_head list;
1021
1022         void (*fn)(struct iwl_priv *priv, struct iwl_rx_packet *pkt,
1023                    void *data);
1024         void *fn_data;
1025
1026         u8 cmd;
1027         bool triggered, aborted;
1028 };
1029
1030 enum iwl_rxon_context_id {
1031         IWL_RXON_CTX_BSS,
1032         IWL_RXON_CTX_PAN,
1033
1034         NUM_IWL_RXON_CTX
1035 };
1036
1037 struct iwl_rxon_context {
1038         struct ieee80211_vif *vif;
1039
1040         const u8 *ac_to_fifo;
1041         const u8 *ac_to_queue;
1042         u8 mcast_queue;
1043
1044         /*
1045          * We could use the vif to indicate active, but we
1046          * also need it to be active during disabling when
1047          * we already removed the vif for type setting.
1048          */
1049         bool always_active, is_active;
1050
1051         bool ht_need_multiple_chains;
1052
1053         enum iwl_rxon_context_id ctxid;
1054
1055         u32 interface_modes, exclusive_interface_modes;
1056         u8 unused_devtype, ap_devtype, ibss_devtype, station_devtype;
1057
1058         /*
1059          * We declare this const so it can only be
1060          * changed via explicit cast within the
1061          * routines that actually update the physical
1062          * hardware.
1063          */
1064         const struct iwl_rxon_cmd active;
1065         struct iwl_rxon_cmd staging;
1066
1067         struct iwl_rxon_time_cmd timing;
1068
1069         struct iwl_qos_info qos_data;
1070
1071         u8 bcast_sta_id, ap_sta_id;
1072
1073         u8 rxon_cmd, rxon_assoc_cmd, rxon_timing_cmd;
1074         u8 qos_cmd;
1075         u8 wep_key_cmd;
1076
1077         struct iwl_wep_key wep_keys[WEP_KEYS_MAX];
1078         u8 key_mapping_keys;
1079
1080         __le32 station_flags;
1081
1082         int beacon_int;
1083
1084         struct {
1085                 bool non_gf_sta_present;
1086                 u8 protection;
1087                 bool enabled, is_40mhz;
1088                 u8 extension_chan_offset;
1089         } ht;
1090
1091         bool last_tx_rejected;
1092 };
1093
1094 enum iwl_scan_type {
1095         IWL_SCAN_NORMAL,
1096         IWL_SCAN_RADIO_RESET,
1097         IWL_SCAN_ROC,
1098 };
1099
1100 enum iwlagn_ucode_type {
1101         IWL_UCODE_NONE,
1102         IWL_UCODE_REGULAR,
1103         IWL_UCODE_INIT,
1104         IWL_UCODE_WOWLAN,
1105 };
1106
1107 #ifdef CONFIG_IWLWIFI_DEVICE_SVTOOL
1108 struct iwl_testmode_trace {
1109         u32 buff_size;
1110         u32 total_size;
1111         u32 num_chunks;
1112         u8 *cpu_addr;
1113         u8 *trace_addr;
1114         dma_addr_t dma_addr;
1115         bool trace_enabled;
1116 };
1117 #endif
1118
1119 /* uCode ownership */
1120 #define IWL_OWNERSHIP_DRIVER    0
1121 #define IWL_OWNERSHIP_TM        1
1122
1123 struct iwl_priv {
1124
1125         /*data shared among all the driver's layers */
1126         struct iwl_shared _shrd;
1127         struct iwl_shared *shrd;
1128
1129         /* ieee device used by generic ieee processing code */
1130         struct ieee80211_hw *hw;
1131         struct ieee80211_channel *ieee_channels;
1132         struct ieee80211_rate *ieee_rates;
1133         struct iwl_cfg *cfg;
1134
1135         enum ieee80211_band band;
1136
1137         void (*pre_rx_handler)(struct iwl_priv *priv,
1138                                struct iwl_rx_mem_buffer *rxb);
1139         void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
1140                                        struct iwl_rx_mem_buffer *rxb);
1141
1142         struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
1143
1144         /* spectrum measurement report caching */
1145         struct iwl_spectrum_notification measure_report;
1146         u8 measurement_status;
1147
1148         /* ucode beacon time */
1149         u32 ucode_beacon_time;
1150         int missed_beacon_threshold;
1151
1152         /* track IBSS manager (last beacon) status */
1153         u32 ibss_manager;
1154
1155         /* jiffies when last recovery from statistics was performed */
1156         unsigned long rx_statistics_jiffies;
1157
1158         /* force reset */
1159         struct iwl_force_reset force_reset[IWL_MAX_FORCE_RESET];
1160
1161         /* firmware reload counter and timestamp */
1162         unsigned long reload_jiffies;
1163         int reload_count;
1164
1165         /* we allocate array of iwl_channel_info for NIC's valid channels.
1166          *    Access via channel # using indirect index array */
1167         struct iwl_channel_info *channel_info;  /* channel info array */
1168         u8 channel_count;       /* # of channels */
1169
1170         /* thermal calibration */
1171         s32 temperature;        /* degrees Kelvin */
1172         s32 last_temperature;
1173
1174         /* init calibration results */
1175         struct iwl_calib_result calib_results[IWL_CALIB_MAX];
1176
1177         /* Scan related variables */
1178         unsigned long scan_start;
1179         unsigned long scan_start_tsf;
1180         void *scan_cmd;
1181         enum ieee80211_band scan_band;
1182         struct cfg80211_scan_request *scan_request;
1183         struct ieee80211_vif *scan_vif;
1184         enum iwl_scan_type scan_type;
1185         u8 scan_tx_ant[IEEE80211_NUM_BANDS];
1186         u8 mgmt_tx_ant;
1187
1188         /* spinlock */
1189         spinlock_t hcmd_lock;   /* protect hcmd */
1190         spinlock_t reg_lock;    /* protect hw register access */
1191
1192         /*TODO: remove these pointers - use bus(priv) instead */
1193         struct iwl_bus *bus;    /* bus specific data */
1194
1195         /* microcode/device supports multiple contexts */
1196         u8 valid_contexts;
1197
1198         /* max number of station keys */
1199         u8 sta_key_max_num;
1200
1201         bool new_scan_threshold_behaviour;
1202
1203         /* EEPROM MAC addresses */
1204         struct mac_address addresses[2];
1205
1206         /* uCode images, save to reload in case of failure */
1207         int fw_index;                   /* firmware we're trying to load */
1208         u32 ucode_ver;                  /* version of ucode, copy of
1209                                            iwl_ucode.ver */
1210
1211         /* uCode owner: default: IWL_OWNERSHIP_DRIVER */
1212         u8 ucode_owner;
1213
1214         struct fw_img ucode_rt;
1215         struct fw_img ucode_init;
1216         struct fw_img ucode_wowlan;
1217
1218         enum iwlagn_ucode_type ucode_type;
1219         u8 ucode_write_complete;        /* the image write is complete */
1220         char firmware_name[25];
1221
1222         struct iwl_rxon_context contexts[NUM_IWL_RXON_CTX];
1223
1224         __le16 switch_channel;
1225
1226         struct {
1227                 u32 error_event_table;
1228                 u32 log_event_table;
1229         } device_pointers;
1230
1231         u16 active_rate;
1232
1233         u8 start_calib;
1234         struct iwl_sensitivity_data sensitivity_data;
1235         struct iwl_chain_noise_data chain_noise_data;
1236         bool enhance_sensitivity_table;
1237         __le16 sensitivity_tbl[HD_TABLE_SIZE];
1238         __le16 enhance_sensitivity_tbl[ENHANCE_HD_TABLE_ENTRIES];
1239
1240         struct iwl_ht_config current_ht_config;
1241
1242         /* Rate scaling data */
1243         u8 retry_rate;
1244
1245         wait_queue_head_t wait_command_queue;
1246
1247         int activity_timer_active;
1248
1249         /* Tx DMA processing queues */
1250         struct iwl_tx_queue *txq;
1251         unsigned long txq_ctx_active_msk;
1252         struct iwl_dma_ptr  kw; /* keep warm address */
1253         struct iwl_dma_ptr  scd_bc_tbls;
1254
1255         u32 scd_base_addr;      /* scheduler sram base address */
1256
1257         /* counts mgmt, ctl, and data packets */
1258         struct traffic_stats tx_stats;
1259         struct traffic_stats rx_stats;
1260
1261         /* counts interrupts */
1262         struct isr_statistics isr_stats;
1263
1264         struct iwl_power_mgr power_data;
1265         struct iwl_tt_mgmt thermal_throttle;
1266
1267         /* station table variables */
1268         int num_stations;
1269         struct iwl_station_entry stations[IWLAGN_STATION_COUNT];
1270         unsigned long ucode_key_table;
1271
1272         /* queue refcounts */
1273 #define IWL_MAX_HW_QUEUES       32
1274         unsigned long queue_stopped[BITS_TO_LONGS(IWL_MAX_HW_QUEUES)];
1275         /* for each AC */
1276         atomic_t queue_stop_count[4];
1277
1278         /* Indication if ieee80211_ops->open has been called */
1279         u8 is_open;
1280
1281         u8 mac80211_registered;
1282
1283         /* eeprom -- this is in the card's little endian byte order */
1284         u8 *eeprom;
1285         int    nvm_device_type;
1286         struct iwl_eeprom_calib_info *calib_info;
1287
1288         enum nl80211_iftype iw_mode;
1289
1290         /* Last Rx'd beacon timestamp */
1291         u64 timestamp;
1292
1293         struct {
1294                 __le32 flag;
1295                 struct statistics_general_common common;
1296                 struct statistics_rx_non_phy rx_non_phy;
1297                 struct statistics_rx_phy rx_ofdm;
1298                 struct statistics_rx_ht_phy rx_ofdm_ht;
1299                 struct statistics_rx_phy rx_cck;
1300                 struct statistics_tx tx;
1301 #ifdef CONFIG_IWLWIFI_DEBUGFS
1302                 struct statistics_bt_activity bt_activity;
1303                 __le32 num_bt_kills, accum_num_bt_kills;
1304 #endif
1305         } statistics;
1306 #ifdef CONFIG_IWLWIFI_DEBUGFS
1307         struct {
1308                 struct statistics_general_common common;
1309                 struct statistics_rx_non_phy rx_non_phy;
1310                 struct statistics_rx_phy rx_ofdm;
1311                 struct statistics_rx_ht_phy rx_ofdm_ht;
1312                 struct statistics_rx_phy rx_cck;
1313                 struct statistics_tx tx;
1314                 struct statistics_bt_activity bt_activity;
1315         } accum_stats, delta_stats, max_delta_stats;
1316 #endif
1317
1318         /* INT ICT Table */
1319         __le32 *ict_tbl;
1320         void *ict_tbl_vir;
1321         dma_addr_t ict_tbl_dma;
1322         dma_addr_t aligned_ict_tbl_dma;
1323         int ict_index;
1324         u32 inta;
1325         bool use_ict;
1326         /*
1327          * reporting the number of tids has AGG on. 0 means
1328          * no AGGREGATION
1329          */
1330         u8 agg_tids_count;
1331
1332         struct iwl_rx_phy_res last_phy_res;
1333         bool last_phy_res_valid;
1334
1335         struct completion firmware_loading_complete;
1336
1337         u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
1338         u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
1339
1340         /*
1341          * chain noise reset and gain commands are the
1342          * two extra calibration commands follows the standard
1343          * phy calibration commands
1344          */
1345         u8 phy_calib_chain_noise_reset_cmd;
1346         u8 phy_calib_chain_noise_gain_cmd;
1347
1348         /* counts reply_tx error */
1349         struct reply_tx_error_statistics reply_tx_stats;
1350         struct reply_agg_tx_error_statistics reply_agg_tx_stats;
1351         /* notification wait support */
1352         struct list_head notif_waits;
1353         spinlock_t notif_wait_lock;
1354         wait_queue_head_t notif_waitq;
1355
1356         /* remain-on-channel offload support */
1357         struct ieee80211_channel *hw_roc_channel;
1358         struct delayed_work hw_roc_disable_work;
1359         enum nl80211_channel_type hw_roc_chantype;
1360         int hw_roc_duration;
1361         bool hw_roc_setup;
1362
1363         /* bt coex */
1364         u8 bt_enable_flag;
1365         u8 bt_status;
1366         u8 bt_traffic_load, last_bt_traffic_load;
1367         bool bt_ch_announce;
1368         bool bt_full_concurrent;
1369         bool bt_ant_couple_ok;
1370         __le32 kill_ack_mask;
1371         __le32 kill_cts_mask;
1372         __le16 bt_valid;
1373         u16 bt_on_thresh;
1374         u16 bt_duration;
1375         u16 dynamic_frag_thresh;
1376         u8 bt_ci_compliance;
1377         struct work_struct bt_traffic_change_work;
1378         bool bt_enable_pspoll;
1379         struct iwl_rxon_context *cur_rssi_ctx;
1380         bool bt_is_sco;
1381
1382         u32 inta_mask;
1383
1384         struct work_struct restart;
1385         struct work_struct scan_completed;
1386         struct work_struct abort_scan;
1387
1388         struct work_struct beacon_update;
1389         struct iwl_rxon_context *beacon_ctx;
1390         struct sk_buff *beacon_skb;
1391         void *beacon_cmd;
1392
1393         struct work_struct tt_work;
1394         struct work_struct ct_enter;
1395         struct work_struct ct_exit;
1396         struct work_struct start_internal_scan;
1397         struct work_struct tx_flush;
1398         struct work_struct bt_full_concurrency;
1399         struct work_struct bt_runtime_config;
1400
1401         struct tasklet_struct irq_tasklet;
1402
1403         struct delayed_work scan_check;
1404
1405         /* TX Power */
1406         s8 tx_power_user_lmt;
1407         s8 tx_power_device_lmt;
1408         s8 tx_power_lmt_in_half_dbm; /* max tx power in half-dBm format */
1409         s8 tx_power_next;
1410
1411 #ifdef CONFIG_IWLWIFI_DEBUGFS
1412         /* debugfs */
1413         u16 tx_traffic_idx;
1414         u16 rx_traffic_idx;
1415         u8 *tx_traffic;
1416         u8 *rx_traffic;
1417         struct dentry *debugfs_dir;
1418         u32 dbgfs_sram_offset, dbgfs_sram_len;
1419         bool disable_ht40;
1420         void *wowlan_sram;
1421 #endif /* CONFIG_IWLWIFI_DEBUGFS */
1422
1423         struct work_struct txpower_work;
1424         u32 disable_sens_cal;
1425         u32 disable_chain_noise_cal;
1426         struct work_struct run_time_calib_work;
1427         struct timer_list statistics_periodic;
1428         struct timer_list ucode_trace;
1429         struct timer_list watchdog;
1430
1431         struct iwl_event_log event_log;
1432
1433         struct led_classdev led;
1434         unsigned long blink_on, blink_off;
1435         bool led_registered;
1436 #ifdef CONFIG_IWLWIFI_DEVICE_SVTOOL
1437         struct iwl_testmode_trace testmode_trace;
1438         u32 tm_fixed_rate;
1439 #endif
1440
1441         /* WoWLAN GTK rekey data */
1442         u8 kck[NL80211_KCK_LEN], kek[NL80211_KEK_LEN];
1443         __le64 replay_ctr;
1444         __le16 last_seq_ctl;
1445         bool have_rekey_data;
1446 }; /*iwl_priv */
1447
1448 static inline void iwl_txq_ctx_activate(struct iwl_priv *priv, int txq_id)
1449 {
1450         set_bit(txq_id, &priv->txq_ctx_active_msk);
1451 }
1452
1453 static inline void iwl_txq_ctx_deactivate(struct iwl_priv *priv, int txq_id)
1454 {
1455         clear_bit(txq_id, &priv->txq_ctx_active_msk);
1456 }
1457
1458 extern struct iwl_mod_params iwlagn_mod_params;
1459
1460 static inline struct ieee80211_hdr *iwl_tx_queue_get_hdr(struct iwl_priv *priv,
1461                                                          int txq_id, int idx)
1462 {
1463         if (priv->txq[txq_id].txb[idx].skb)
1464                 return (struct ieee80211_hdr *)priv->txq[txq_id].
1465                                 txb[idx].skb->data;
1466         return NULL;
1467 }
1468
1469 static inline struct iwl_rxon_context *
1470 iwl_rxon_ctx_from_vif(struct ieee80211_vif *vif)
1471 {
1472         struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
1473
1474         return vif_priv->ctx;
1475 }
1476
1477 #define for_each_context(priv, ctx)                             \
1478         for (ctx = &priv->contexts[IWL_RXON_CTX_BSS];           \
1479              ctx < &priv->contexts[NUM_IWL_RXON_CTX]; ctx++)    \
1480                 if (priv->valid_contexts & BIT(ctx->ctxid))
1481
1482 static inline int iwl_is_associated_ctx(struct iwl_rxon_context *ctx)
1483 {
1484         return (ctx->active.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
1485 }
1486
1487 static inline int iwl_is_associated(struct iwl_priv *priv,
1488                                     enum iwl_rxon_context_id ctxid)
1489 {
1490         return iwl_is_associated_ctx(&priv->contexts[ctxid]);
1491 }
1492
1493 static inline int iwl_is_any_associated(struct iwl_priv *priv)
1494 {
1495         struct iwl_rxon_context *ctx;
1496         for_each_context(priv, ctx)
1497                 if (iwl_is_associated_ctx(ctx))
1498                         return true;
1499         return false;
1500 }
1501
1502 static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
1503 {
1504         if (ch_info == NULL)
1505                 return 0;
1506         return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
1507 }
1508
1509 static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
1510 {
1511         return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
1512 }
1513
1514 static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
1515 {
1516         return ch_info->band == IEEE80211_BAND_5GHZ;
1517 }
1518
1519 static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
1520 {
1521         return ch_info->band == IEEE80211_BAND_2GHZ;
1522 }
1523
1524 static inline int is_channel_passive(const struct iwl_channel_info *ch)
1525 {
1526         return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1527 }
1528
1529 static inline int is_channel_ibss(const struct iwl_channel_info *ch)
1530 {
1531         return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1532 }
1533
1534 static inline void __iwl_free_pages(struct iwl_priv *priv, struct page *page)
1535 {
1536         __free_pages(page, hw_params(priv).rx_page_order);
1537 }
1538
1539 static inline void iwl_free_pages(struct iwl_priv *priv, unsigned long page)
1540 {
1541         free_pages(page, hw_params(priv).rx_page_order);
1542 }
1543 #endif                          /* __iwl_dev_h__ */