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 <linux/slab.h>
  40 #include <net/ieee80211_radiotap.h>
  41
  42 #include "iwl-eeprom.h"
  43 #include "iwl-csr.h"
  44 #include "iwl-prph.h"
  45 #include "iwl-debug.h"
  46 #include "iwl-agn-hw.h"
  47 #include "iwl-led.h"
  48 #include "iwl-power.h"
  49 #include "iwl-agn-rs.h"
  50 #include "iwl-agn-tt.h"
  51 #include "iwl-bus.h"
  52 #include "iwl-trans.h"
  53 #include "iwl-shared.h"
  54
  55 struct iwl_tx_queue;
  56
  57 /* CT-KILL constants */
  58 #define CT_KILL_THRESHOLD_LEGACY   110 /* in Celsius */
  59 #define CT_KILL_THRESHOLD          114 /* in Celsius */
  60 #define CT_KILL_EXIT_THRESHOLD     95  /* in Celsius */
  61
  62 /* Default noise level to report when noise measurement is not available.
  63  *   This may be because we're:
  64  *   1)  Not associated (4965, no beacon statistics being sent to driver)
  65  *   2)  Scanning (noise measurement does not apply to associated channel)
  66  *   3)  Receiving CCK (3945 delivers noise info only for OFDM frames)
  67  * Use default noise value of -127 ... this is below the range of measurable
  68  *   Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
  69  *   Also, -127 works better than 0 when averaging frames with/without
  70  *   noise info (e.g. averaging might be done in app); measured dBm values are
  71  *   always negative ... using a negative value as the default keeps all
  72  *   averages within an s8's (used in some apps) range of negative values. */
  73 #define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
  74
  75 /*
  76  * RTS threshold here is total size [2347] minus 4 FCS bytes
  77  * Per spec:
  78  *   a value of 0 means RTS on all data/management packets
  79  *   a value > max MSDU size means no RTS
  80  * else RTS for data/management frames where MPDU is larger
  81  *   than RTS value.
  82  */
  83 #define DEFAULT_RTS_THRESHOLD     2347U
  84 #define MIN_RTS_THRESHOLD         0U
  85 #define MAX_RTS_THRESHOLD         2347U
  86 #define MAX_MSDU_SIZE             2304U
  87 #define MAX_MPDU_SIZE             2346U
  88 #define DEFAULT_BEACON_INTERVAL   200U
  89 #define DEFAULT_SHORT_RETRY_LIMIT 7U
  90 #define DEFAULT_LONG_RETRY_LIMIT  4U
  91
  92 /* defined below */
  93 struct iwl_device_cmd;
  94
  95 struct iwl_cmd_meta {
  96         /* only for SYNC commands, iff the reply skb is wanted */
  97         struct iwl_host_cmd *source;
  98         /*
  99          * only for ASYNC commands
 100          * (which is somewhat stupid -- look at iwl-sta.c for instance
 101          * which duplicates a bunch of code because the callback isn't
 102          * invoked for SYNC commands, if it were and its result passed
 103          * through it would be simpler...)
 104          */
 105         void (*callback)(struct iwl_priv *priv,
 106                          struct iwl_device_cmd *cmd,
 107                          struct iwl_rx_packet *pkt);
 108
 109         u32 flags;
 110
 111         DEFINE_DMA_UNMAP_ADDR(mapping);
 112         DEFINE_DMA_UNMAP_LEN(len);
 113 };
 114
 115 /*
 116  * Generic queue structure
 117  *
 118  * Contains common data for Rx and Tx queues.
 119  *
 120  * Note the difference between n_bd and n_window: the hardware
 121  * always assumes 256 descriptors, so n_bd is always 256 (unless
 122  * there might be HW changes in the future). For the normal TX
 123  * queues, n_window, which is the size of the software queue data
 124  * is also 256; however, for the command queue, n_window is only
 125  * 32 since we don't need so many commands pending. Since the HW
 126  * still uses 256 BDs for DMA though, n_bd stays 256. As a result,
 127  * the software buffers (in the variables @meta, @txb in struct
 128  * iwl_tx_queue) only have 32 entries, while the HW buffers (@tfds
 129  * in the same struct) have 256.
 130  * This means that we end up with the following:
 131  *  HW entries: | 0 | ... | N * 32 | ... | N * 32 + 31 | ... | 255 |
 132  *  SW entries:           | 0      | ... | 31          |
 133  * where N is a number between 0 and 7. This means that the SW
 134  * data is a window overlayed over the HW queue.
 135  */
 136 struct iwl_queue {
 137         int n_bd;              /* number of BDs in this queue */
 138         int write_ptr;       /* 1-st empty entry (index) host_w*/
 139         int read_ptr;         /* last used entry (index) host_r*/
 140         /* use for monitoring and recovering the stuck queue */
 141         dma_addr_t dma_addr;   /* physical addr for BD's */
 142         int n_window;          /* safe queue window */
 143         u32 id;
 144         int low_mark;          /* low watermark, resume queue if free
 145                                 * space more than this */
 146         int high_mark;         /* high watermark, stop queue if free
 147                                 * space less than this */
 148 };
 149
 150 /**
 151  * struct iwl_tx_queue - Tx Queue for DMA
 152  * @q: generic Rx/Tx queue descriptor
 153  * @bd: base of circular buffer of TFDs
 154  * @cmd: array of command/TX buffer pointers
 155  * @meta: array of meta data for each command/tx buffer
 156  * @dma_addr_cmd: physical address of cmd/tx buffer array
 157  * @txb: array of per-TFD driver data
 158  * @time_stamp: time (in jiffies) of last read_ptr change
 159  * @need_update: indicates need to update read/write index
 160  * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
 161  * @sta_id: valid if sched_retry is set
 162  * @tid: valid if sched_retry is set
 163  *
 164  * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
 165  * descriptors) and required locking structures.
 166  */
 167 #define TFD_TX_CMD_SLOTS 256
 168 #define TFD_CMD_SLOTS 32
 169
 170 struct iwl_tx_queue {
 171         struct iwl_queue q;
 172         struct iwl_tfd *tfds;
 173         struct iwl_device_cmd **cmd;
 174         struct iwl_cmd_meta *meta;
 175         struct sk_buff **skbs;
 176         unsigned long time_stamp;
 177         u8 need_update;
 178         u8 sched_retry;
 179         u8 active;
 180         u8 swq_id;
 181
 182         u16 sta_id;
 183         u16 tid;
 184 };
 185
 186 #define IWL_NUM_SCAN_RATES         (2)
 187
 188 /*
 189  * One for each channel, holds all channel setup data
 190  * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
 191  *     with one another!
 192  */
 193 struct iwl_channel_info {
 194         struct iwl_eeprom_channel eeprom;       /* EEPROM regulatory limit */
 195         struct iwl_eeprom_channel ht40_eeprom;  /* EEPROM regulatory limit for
 196                                                  * HT40 channel */
 197
 198         u8 channel;       /* channel number */
 199         u8 flags;         /* flags copied from EEPROM */
 200         s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
 201         s8 curr_txpow;    /* (dBm) regulatory/spectrum/user (not h/w) limit */
 202         s8 min_power;     /* always 0 */
 203         s8 scan_power;    /* (dBm) regul. eeprom, direct scans, any rate */
 204
 205         u8 group_index;   /* 0-4, maps channel to group1/2/3/4/5 */
 206         u8 band_index;    /* 0-4, maps channel to band1/2/3/4/5 */
 207         enum ieee80211_band band;
 208
 209         /* HT40 channel info */
 210         s8 ht40_max_power_avg;  /* (dBm) regul. eeprom, normal Tx, any rate */
 211         u8 ht40_flags;          /* flags copied from EEPROM */
 212         u8 ht40_extension_channel; /* HT_IE_EXT_CHANNEL_* */
 213 };
 214
 215 #define IWL_TX_FIFO_BK          0       /* shared */
 216 #define IWL_TX_FIFO_BE          1
 217 #define IWL_TX_FIFO_VI          2       /* shared */
 218 #define IWL_TX_FIFO_VO          3
 219 #define IWL_TX_FIFO_BK_IPAN     IWL_TX_FIFO_BK
 220 #define IWL_TX_FIFO_BE_IPAN     4
 221 #define IWL_TX_FIFO_VI_IPAN     IWL_TX_FIFO_VI
 222 #define IWL_TX_FIFO_VO_IPAN     5
 223 /* re-uses the VO FIFO, uCode will properly flush/schedule */
 224 #define IWL_TX_FIFO_AUX         5
 225 #define IWL_TX_FIFO_UNUSED      -1
 226
 227 /* AUX (TX during scan dwell) queue */
 228 #define IWL_AUX_QUEUE           10
 229
 230 /*
 231  * Minimum number of queues. MAX_NUM is defined in hw specific files.
 232  * Set the minimum to accommodate
 233  *  - 4 standard TX queues
 234  *  - the command queue
 235  *  - 4 PAN TX queues
 236  *  - the PAN multicast queue, and
 237  *  - the AUX (TX during scan dwell) queue.
 238  */
 239 #define IWL_MIN_NUM_QUEUES      11
 240
 241 /*
 242  * Command queue depends on iPAN support.
 243  */
 244 #define IWL_DEFAULT_CMD_QUEUE_NUM       4
 245 #define IWL_IPAN_CMD_QUEUE_NUM          9
 246
 247 /*
 248  * This queue number is required for proper operation
 249  * because the ucode will stop/start the scheduler as
 250  * required.
 251  */
 252 #define IWL_IPAN_MCAST_QUEUE            8
 253
 254 #define IEEE80211_DATA_LEN              2304
 255 #define IEEE80211_4ADDR_LEN             30
 256 #define IEEE80211_HLEN                  (IEEE80211_4ADDR_LEN)
 257 #define IEEE80211_FRAME_LEN             (IEEE80211_DATA_LEN + IEEE80211_HLEN)
 258
 259
 260 #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
 261 #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
 262 #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
 263
 264 enum {
 265         CMD_SYNC = 0,
 266         CMD_ASYNC = BIT(0),
 267         CMD_WANT_SKB = BIT(1),
 268         CMD_ON_DEMAND = BIT(2),
 269 };
 270
 271 #define DEF_CMD_PAYLOAD_SIZE 320
 272
 273 /**
 274  * struct iwl_device_cmd
 275  *
 276  * For allocation of the command and tx queues, this establishes the overall
 277  * size of the largest command we send to uCode, except for commands that
 278  * aren't fully copied and use other TFD space.
 279  */
 280 struct iwl_device_cmd {
 281         struct iwl_cmd_header hdr;      /* uCode API */
 282         union {
 283                 u32 flags;
 284                 u8 val8;
 285                 u16 val16;
 286                 u32 val32;
 287                 struct iwl_tx_cmd tx;
 288                 struct iwl6000_channel_switch_cmd chswitch;
 289                 u8 payload[DEF_CMD_PAYLOAD_SIZE];
 290         } __packed cmd;
 291 } __packed;
 292
 293 #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_device_cmd))
 294
 295 #define IWL_MAX_CMD_TFDS        2
 296
 297 enum iwl_hcmd_dataflag {
 298         IWL_HCMD_DFL_NOCOPY     = BIT(0),
 299 };
 300
 301 /**
 302  * struct iwl_host_cmd - Host command to the uCode
 303  * @data: array of chunks that composes the data of the host command
 304  * @reply_page: pointer to the page that holds the response to the host command
 305  * @callback:
 306  * @flags: can be CMD_* note CMD_WANT_SKB is incompatible withe CMD_ASYNC
 307  * @len: array of the lenths of the chunks in data
 308  * @dataflags:
 309  * @id: id of the host command
 310  */
 311 struct iwl_host_cmd {
 312         const void *data[IWL_MAX_CMD_TFDS];
 313         unsigned long reply_page;
 314         void (*callback)(struct iwl_priv *priv,
 315                          struct iwl_device_cmd *cmd,
 316                          struct iwl_rx_packet *pkt);
 317         u32 flags;
 318         u16 len[IWL_MAX_CMD_TFDS];
 319         u8 dataflags[IWL_MAX_CMD_TFDS];
 320         u8 id;
 321 };
 322
 323 #define SUP_RATE_11A_MAX_NUM_CHANNELS  8
 324 #define SUP_RATE_11B_MAX_NUM_CHANNELS  4
 325 #define SUP_RATE_11G_MAX_NUM_CHANNELS  12
 326
 327 #define IWL_SUPPORTED_RATES_IE_LEN         8
 328
 329 #define IWL_INVALID_RATE     0xFF
 330 #define IWL_INVALID_VALUE    -1
 331
 332 union iwl_ht_rate_supp {
 333         u16 rates;
 334         struct {
 335                 u8 siso_rate;
 336                 u8 mimo_rate;
 337         };
 338 };
 339
 340 #define CFG_HT_RX_AMPDU_FACTOR_8K   (0x0)
 341 #define CFG_HT_RX_AMPDU_FACTOR_16K  (0x1)
 342 #define CFG_HT_RX_AMPDU_FACTOR_32K  (0x2)
 343 #define CFG_HT_RX_AMPDU_FACTOR_64K  (0x3)
 344 #define CFG_HT_RX_AMPDU_FACTOR_DEF  CFG_HT_RX_AMPDU_FACTOR_64K
 345 #define CFG_HT_RX_AMPDU_FACTOR_MAX  CFG_HT_RX_AMPDU_FACTOR_64K
 346 #define CFG_HT_RX_AMPDU_FACTOR_MIN  CFG_HT_RX_AMPDU_FACTOR_8K
 347
 348 /*
 349  * Maximal MPDU density for TX aggregation
 350  * 4 - 2us density
 351  * 5 - 4us density
 352  * 6 - 8us density
 353  * 7 - 16us density
 354  */
 355 #define CFG_HT_MPDU_DENSITY_2USEC   (0x4)
 356 #define CFG_HT_MPDU_DENSITY_4USEC   (0x5)
 357 #define CFG_HT_MPDU_DENSITY_8USEC   (0x6)
 358 #define CFG_HT_MPDU_DENSITY_16USEC  (0x7)
 359 #define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_4USEC
 360 #define CFG_HT_MPDU_DENSITY_MAX CFG_HT_MPDU_DENSITY_16USEC
 361 #define CFG_HT_MPDU_DENSITY_MIN     (0x1)
 362
 363 struct iwl_ht_config {
 364         bool single_chain_sufficient;
 365         enum ieee80211_smps_mode smps; /* current smps mode */
 366 };
 367
 368 /* QoS structures */
 369 struct iwl_qos_info {
 370         int qos_active;
 371         struct iwl_qosparam_cmd def_qos_parm;
 372 };
 373
 374 /*
 375  * Structure should be accessed with sta_lock held. When station addition
 376  * is in progress (IWL_STA_UCODE_INPROGRESS) it is possible to access only
 377  * the commands (iwl_addsta_cmd and iwl_link_quality_cmd) without sta_lock
 378  * held.
 379  */
 380 struct iwl_station_entry {
 381         struct iwl_addsta_cmd sta;
 382         u8 used, ctxid;
 383         struct iwl_link_quality_cmd *lq;
 384 };
 385
 386 struct iwl_station_priv_common {
 387         struct iwl_rxon_context *ctx;
 388         u8 sta_id;
 389 };
 390
 391 /*
 392  * iwl_station_priv: Driver's private station information
 393  *
 394  * When mac80211 creates a station it reserves some space (hw->sta_data_size)
 395  * in the structure for use by driver. This structure is places in that
 396  * space.
 397  */
 398 struct iwl_station_priv {
 399         struct iwl_station_priv_common common;
 400         struct iwl_lq_sta lq_sta;
 401         atomic_t pending_frames;
 402         bool client;
 403         bool asleep;
 404         u8 max_agg_bufsize;
 405 };
 406
 407 /**
 408  * struct iwl_vif_priv - driver's private per-interface information
 409  *
 410  * When mac80211 allocates a virtual interface, it can allocate
 411  * space for us to put data into.
 412  */
 413 struct iwl_vif_priv {
 414         struct iwl_rxon_context *ctx;
 415         u8 ibss_bssid_sta_id;
 416 };
 417
 418 /* one for each uCode image (inst/data, boot/init/runtime) */
 419 struct fw_desc {
 420         void *v_addr;           /* access by driver */
 421         dma_addr_t p_addr;      /* access by card's busmaster DMA */
 422         u32 len;                /* bytes */
 423 };
 424
 425 struct fw_img {
 426         struct fw_desc code, data;
 427 };
 428
 429 /* v1/v2 uCode file layout */
 430 struct iwl_ucode_header {
 431         __le32 ver;     /* major/minor/API/serial */
 432         union {
 433                 struct {
 434                         __le32 inst_size;       /* bytes of runtime code */
 435                         __le32 data_size;       /* bytes of runtime data */
 436                         __le32 init_size;       /* bytes of init code */
 437                         __le32 init_data_size;  /* bytes of init data */
 438                         __le32 boot_size;       /* bytes of bootstrap code */
 439                         u8 data[0];             /* in same order as sizes */
 440                 } v1;
 441                 struct {
 442                         __le32 build;           /* build number */
 443                         __le32 inst_size;       /* bytes of runtime code */
 444                         __le32 data_size;       /* bytes of runtime data */
 445                         __le32 init_size;       /* bytes of init code */
 446                         __le32 init_data_size;  /* bytes of init data */
 447                         __le32 boot_size;       /* bytes of bootstrap code */
 448                         u8 data[0];             /* in same order as sizes */
 449                 } v2;
 450         } u;
 451 };
 452
 453 /*
 454  * new TLV uCode file layout
 455  *
 456  * The new TLV file format contains TLVs, that each specify
 457  * some piece of data. To facilitate "groups", for example
 458  * different instruction image with different capabilities,
 459  * bundled with the same init image, an alternative mechanism
 460  * is provided:
 461  * When the alternative field is 0, that means that the item
 462  * is always valid. When it is non-zero, then it is only
 463  * valid in conjunction with items of the same alternative,
 464  * in which case the driver (user) selects one alternative
 465  * to use.
 466  */
 467
 468 enum iwl_ucode_tlv_type {
 469         IWL_UCODE_TLV_INVALID           = 0, /* unused */
 470         IWL_UCODE_TLV_INST              = 1,
 471         IWL_UCODE_TLV_DATA              = 2,
 472         IWL_UCODE_TLV_INIT              = 3,
 473         IWL_UCODE_TLV_INIT_DATA         = 4,
 474         IWL_UCODE_TLV_BOOT              = 5,
 475         IWL_UCODE_TLV_PROBE_MAX_LEN     = 6, /* a u32 value */
 476         IWL_UCODE_TLV_PAN               = 7,
 477         IWL_UCODE_TLV_RUNT_EVTLOG_PTR   = 8,
 478         IWL_UCODE_TLV_RUNT_EVTLOG_SIZE  = 9,
 479         IWL_UCODE_TLV_RUNT_ERRLOG_PTR   = 10,
 480         IWL_UCODE_TLV_INIT_EVTLOG_PTR   = 11,
 481         IWL_UCODE_TLV_INIT_EVTLOG_SIZE  = 12,
 482         IWL_UCODE_TLV_INIT_ERRLOG_PTR   = 13,
 483         IWL_UCODE_TLV_ENHANCE_SENS_TBL  = 14,
 484         IWL_UCODE_TLV_PHY_CALIBRATION_SIZE = 15,
 485         IWL_UCODE_TLV_WOWLAN_INST       = 16,
 486         IWL_UCODE_TLV_WOWLAN_DATA       = 17,
 487         IWL_UCODE_TLV_FLAGS             = 18,
 488 };
 489
 490 /**
 491  * enum iwl_ucode_tlv_flag - ucode API flags
 492  * @IWL_UCODE_TLV_FLAGS_PAN: This is PAN capable microcode; this previously
 493  *      was a separate TLV but moved here to save space.
 494  * @IWL_UCODE_TLV_FLAGS_NEWSCAN: new uCode scan behaviour on hidden SSID,
 495  *      treats good CRC threshold as a boolean
 496  * @IWL_UCODE_TLV_FLAGS_MFP: This uCode image supports MFP (802.11w).
 497  * @IWL_UCODE_TLV_FLAGS_P2P: This uCode image supports P2P.
 498  */
 499 enum iwl_ucode_tlv_flag {
 500         IWL_UCODE_TLV_FLAGS_PAN         = BIT(0),
 501         IWL_UCODE_TLV_FLAGS_NEWSCAN     = BIT(1),
 502         IWL_UCODE_TLV_FLAGS_MFP         = BIT(2),
 503         IWL_UCODE_TLV_FLAGS_P2P         = BIT(3),
 504 };
 505
 506 struct iwl_ucode_tlv {
 507         __le16 type;            /* see above */
 508         __le16 alternative;     /* see comment */
 509         __le32 length;          /* not including type/length fields */
 510         u8 data[0];
 511 } __packed;
 512
 513 #define IWL_TLV_UCODE_MAGIC     0x0a4c5749
 514
 515 struct iwl_tlv_ucode_header {
 516         /*
 517          * The TLV style ucode header is distinguished from
 518          * the v1/v2 style header by first four bytes being
 519          * zero, as such is an invalid combination of
 520          * major/minor/API/serial versions.
 521          */
 522         __le32 zero;
 523         __le32 magic;
 524         u8 human_readable[64];
 525         __le32 ver;             /* major/minor/API/serial */
 526         __le32 build;
 527         __le64 alternatives;    /* bitmask of valid alternatives */
 528         /*
 529          * The data contained herein has a TLV layout,
 530          * see above for the TLV header and types.
 531          * Note that each TLV is padded to a length
 532          * that is a multiple of 4 for alignment.
 533          */
 534         u8 data[0];
 535 };
 536
 537 struct iwl_sensitivity_ranges {
 538         u16 min_nrg_cck;
 539         u16 max_nrg_cck;
 540
 541         u16 nrg_th_cck;
 542         u16 nrg_th_ofdm;
 543
 544         u16 auto_corr_min_ofdm;
 545         u16 auto_corr_min_ofdm_mrc;
 546         u16 auto_corr_min_ofdm_x1;
 547         u16 auto_corr_min_ofdm_mrc_x1;
 548
 549         u16 auto_corr_max_ofdm;
 550         u16 auto_corr_max_ofdm_mrc;
 551         u16 auto_corr_max_ofdm_x1;
 552         u16 auto_corr_max_ofdm_mrc_x1;
 553
 554         u16 auto_corr_max_cck;
 555         u16 auto_corr_max_cck_mrc;
 556         u16 auto_corr_min_cck;
 557         u16 auto_corr_min_cck_mrc;
 558
 559         u16 barker_corr_th_min;
 560         u16 barker_corr_th_min_mrc;
 561         u16 nrg_th_cca;
 562 };
 563
 564
 565 #define KELVIN_TO_CELSIUS(x) ((x)-273)
 566 #define CELSIUS_TO_KELVIN(x) ((x)+273)
 567
 568
 569 /******************************************************************************
 570  *
 571  * Functions implemented in core module which are forward declared here
 572  * for use by iwl-[4-5].c
 573  *
 574  * NOTE:  The implementation of these functions are not hardware specific
 575  * which is why they are in the core module files.
 576  *
 577  * Naming convention --
 578  * iwl_         <-- Is part of iwlwifi
 579  * iwlXXXX_     <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
 580  *
 581  ****************************************************************************/
 582 extern void iwl_update_chain_flags(struct iwl_priv *priv);
 583 extern const u8 iwl_bcast_addr[ETH_ALEN];
 584 extern int iwl_queue_space(const struct iwl_queue *q);
 585 static inline int iwl_queue_used(const struct iwl_queue *q, int i)
 586 {
 587         return q->write_ptr >= q->read_ptr ?
 588                 (i >= q->read_ptr && i < q->write_ptr) :
 589                 !(i < q->read_ptr && i >= q->write_ptr);
 590 }
 591
 592
 593 static inline u8 get_cmd_index(struct iwl_queue *q, u32 index)
 594 {
 595         return index & (q->n_window - 1);
 596 }
 597
 598 #define IWL_OPERATION_MODE_AUTO     0
 599 #define IWL_OPERATION_MODE_HT_ONLY  1
 600 #define IWL_OPERATION_MODE_MIXED    2
 601 #define IWL_OPERATION_MODE_20MHZ    3
 602
 603 #define IWL_TX_CRC_SIZE 4
 604 #define IWL_TX_DELIMITER_SIZE 4
 605
 606 #define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
 607
 608 /* Sensitivity and chain noise calibration */
 609 #define INITIALIZATION_VALUE            0xFFFF
 610 #define IWL_CAL_NUM_BEACONS             16
 611 #define MAXIMUM_ALLOWED_PATHLOSS        15
 612
 613 #define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
 614
 615 #define MAX_FA_OFDM  50
 616 #define MIN_FA_OFDM  5
 617 #define MAX_FA_CCK   50
 618 #define MIN_FA_CCK   5
 619
 620 #define AUTO_CORR_STEP_OFDM       1
 621
 622 #define AUTO_CORR_STEP_CCK     3
 623 #define AUTO_CORR_MAX_TH_CCK   160
 624
 625 #define NRG_DIFF               2
 626 #define NRG_STEP_CCK           2
 627 #define NRG_MARGIN             8
 628 #define MAX_NUMBER_CCK_NO_FA 100
 629
 630 #define AUTO_CORR_CCK_MIN_VAL_DEF    (125)
 631
 632 #define CHAIN_A             0
 633 #define CHAIN_B             1
 634 #define CHAIN_C             2
 635 #define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
 636 #define ALL_BAND_FILTER                 0xFF00
 637 #define IN_BAND_FILTER                  0xFF
 638 #define MIN_AVERAGE_NOISE_MAX_VALUE     0xFFFFFFFF
 639
 640 #define NRG_NUM_PREV_STAT_L     20
 641 #define NUM_RX_CHAINS           3
 642
 643 enum iwlagn_false_alarm_state {
 644         IWL_FA_TOO_MANY = 0,
 645         IWL_FA_TOO_FEW = 1,
 646         IWL_FA_GOOD_RANGE = 2,
 647 };
 648
 649 enum iwlagn_chain_noise_state {
 650         IWL_CHAIN_NOISE_ALIVE = 0,  /* must be 0 */
 651         IWL_CHAIN_NOISE_ACCUMULATE,
 652         IWL_CHAIN_NOISE_CALIBRATED,
 653         IWL_CHAIN_NOISE_DONE,
 654 };
 655
 656
 657 /*
 658  * enum iwl_calib
 659  * defines the order in which results of initial calibrations
 660  * should be sent to the runtime uCode
 661  */
 662 enum iwl_calib {
 663         IWL_CALIB_XTAL,
 664         IWL_CALIB_DC,
 665         IWL_CALIB_LO,
 666         IWL_CALIB_TX_IQ,
 667         IWL_CALIB_TX_IQ_PERD,
 668         IWL_CALIB_BASE_BAND,
 669         IWL_CALIB_TEMP_OFFSET,
 670         IWL_CALIB_MAX
 671 };
 672
 673 /* Opaque calibration results */
 674 struct iwl_calib_result {
 675         void *buf;
 676         size_t buf_len;
 677 };
 678
 679 /* Sensitivity calib data */
 680 struct iwl_sensitivity_data {
 681         u32 auto_corr_ofdm;
 682         u32 auto_corr_ofdm_mrc;
 683         u32 auto_corr_ofdm_x1;
 684         u32 auto_corr_ofdm_mrc_x1;
 685         u32 auto_corr_cck;
 686         u32 auto_corr_cck_mrc;
 687
 688         u32 last_bad_plcp_cnt_ofdm;
 689         u32 last_fa_cnt_ofdm;
 690         u32 last_bad_plcp_cnt_cck;
 691         u32 last_fa_cnt_cck;
 692
 693         u32 nrg_curr_state;
 694         u32 nrg_prev_state;
 695         u32 nrg_value[10];
 696         u8  nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
 697         u32 nrg_silence_ref;
 698         u32 nrg_energy_idx;
 699         u32 nrg_silence_idx;
 700         u32 nrg_th_cck;
 701         s32 nrg_auto_corr_silence_diff;
 702         u32 num_in_cck_no_fa;
 703         u32 nrg_th_ofdm;
 704
 705         u16 barker_corr_th_min;
 706         u16 barker_corr_th_min_mrc;
 707         u16 nrg_th_cca;
 708 };
 709
 710 /* Chain noise (differential Rx gain) calib data */
 711 struct iwl_chain_noise_data {
 712         u32 active_chains;
 713         u32 chain_noise_a;
 714         u32 chain_noise_b;
 715         u32 chain_noise_c;
 716         u32 chain_signal_a;
 717         u32 chain_signal_b;
 718         u32 chain_signal_c;
 719         u16 beacon_count;
 720         u8 disconn_array[NUM_RX_CHAINS];
 721         u8 delta_gain_code[NUM_RX_CHAINS];
 722         u8 radio_write;
 723         u8 state;
 724 };
 725
 726 #define EEPROM_SEM_TIMEOUT 10           /* milliseconds */
 727 #define EEPROM_SEM_RETRY_LIMIT 1000     /* number of attempts (not time) */
 728
 729 #define IWL_TRAFFIC_ENTRIES     (256)
 730 #define IWL_TRAFFIC_ENTRY_SIZE  (64)
 731
 732 enum {
 733         MEASUREMENT_READY = (1 << 0),
 734         MEASUREMENT_ACTIVE = (1 << 1),
 735 };
 736
 737 enum iwl_nvm_type {
 738         NVM_DEVICE_TYPE_EEPROM = 0,
 739         NVM_DEVICE_TYPE_OTP,
 740 };
 741
 742 /*
 743  * Two types of OTP memory access modes
 744  *   IWL_OTP_ACCESS_ABSOLUTE - absolute address mode,
 745  *                              based on physical memory addressing
 746  *   IWL_OTP_ACCESS_RELATIVE - relative address mode,
 747  *                             based on logical memory addressing
 748  */
 749 enum iwl_access_mode {
 750         IWL_OTP_ACCESS_ABSOLUTE,
 751         IWL_OTP_ACCESS_RELATIVE,
 752 };
 753
 754 /**
 755  * enum iwl_pa_type - Power Amplifier type
 756  * @IWL_PA_SYSTEM:  based on uCode configuration
 757  * @IWL_PA_INTERNAL: use Internal only
 758  */
 759 enum iwl_pa_type {
 760         IWL_PA_SYSTEM = 0,
 761         IWL_PA_INTERNAL = 1,
 762 };
 763
 764 /* reply_tx_statistics (for _agn devices) */
 765 struct reply_tx_error_statistics {
 766         u32 pp_delay;
 767         u32 pp_few_bytes;
 768         u32 pp_bt_prio;
 769         u32 pp_quiet_period;
 770         u32 pp_calc_ttak;
 771         u32 int_crossed_retry;
 772         u32 short_limit;
 773         u32 long_limit;
 774         u32 fifo_underrun;
 775         u32 drain_flow;
 776         u32 rfkill_flush;
 777         u32 life_expire;
 778         u32 dest_ps;
 779         u32 host_abort;
 780         u32 bt_retry;
 781         u32 sta_invalid;
 782         u32 frag_drop;
 783         u32 tid_disable;
 784         u32 fifo_flush;
 785         u32 insuff_cf_poll;
 786         u32 fail_hw_drop;
 787         u32 sta_color_mismatch;
 788         u32 unknown;
 789 };
 790
 791 /* reply_agg_tx_statistics (for _agn devices) */
 792 struct reply_agg_tx_error_statistics {
 793         u32 underrun;
 794         u32 bt_prio;
 795         u32 few_bytes;
 796         u32 abort;
 797         u32 last_sent_ttl;
 798         u32 last_sent_try;
 799         u32 last_sent_bt_kill;
 800         u32 scd_query;
 801         u32 bad_crc32;
 802         u32 response;
 803         u32 dump_tx;
 804         u32 delay_tx;
 805         u32 unknown;
 806 };
 807
 808 /* management statistics */
 809 enum iwl_mgmt_stats {
 810         MANAGEMENT_ASSOC_REQ = 0,
 811         MANAGEMENT_ASSOC_RESP,
 812         MANAGEMENT_REASSOC_REQ,
 813         MANAGEMENT_REASSOC_RESP,
 814         MANAGEMENT_PROBE_REQ,
 815         MANAGEMENT_PROBE_RESP,
 816         MANAGEMENT_BEACON,
 817         MANAGEMENT_ATIM,
 818         MANAGEMENT_DISASSOC,
 819         MANAGEMENT_AUTH,
 820         MANAGEMENT_DEAUTH,
 821         MANAGEMENT_ACTION,
 822         MANAGEMENT_MAX,
 823 };
 824 /* control statistics */
 825 enum iwl_ctrl_stats {
 826         CONTROL_BACK_REQ =  0,
 827         CONTROL_BACK,
 828         CONTROL_PSPOLL,
 829         CONTROL_RTS,
 830         CONTROL_CTS,
 831         CONTROL_ACK,
 832         CONTROL_CFEND,
 833         CONTROL_CFENDACK,
 834         CONTROL_MAX,
 835 };
 836
 837 struct traffic_stats {
 838 #ifdef CONFIG_IWLWIFI_DEBUGFS
 839         u32 mgmt[MANAGEMENT_MAX];
 840         u32 ctrl[CONTROL_MAX];
 841         u32 data_cnt;
 842         u64 data_bytes;
 843 #endif
 844 };
 845
 846 /*
 847  * schedule the timer to wake up every UCODE_TRACE_PERIOD milliseconds
 848  * to perform continuous uCode event logging operation if enabled
 849  */
 850 #define UCODE_TRACE_PERIOD (100)
 851
 852 /*
 853  * iwl_event_log: current uCode event log position
 854  *
 855  * @ucode_trace: enable/disable ucode continuous trace timer
 856  * @num_wraps: how many times the event buffer wraps
 857  * @next_entry:  the entry just before the next one that uCode would fill
 858  * @non_wraps_count: counter for no wrap detected when dump ucode events
 859  * @wraps_once_count: counter for wrap once detected when dump ucode events
 860  * @wraps_more_count: counter for wrap more than once detected
 861  *                    when dump ucode events
 862  */
 863 struct iwl_event_log {
 864         bool ucode_trace;
 865         u32 num_wraps;
 866         u32 next_entry;
 867         int non_wraps_count;
 868         int wraps_once_count;
 869         int wraps_more_count;
 870 };
 871
 872 /*
 873  * host interrupt timeout value
 874  * used with setting interrupt coalescing timer
 875  * the CSR_INT_COALESCING is an 8 bit register in 32-usec unit
 876  *
 877  * default interrupt coalescing timer is 64 x 32 = 2048 usecs
 878  * default interrupt coalescing calibration timer is 16 x 32 = 512 usecs
 879  */
 880 #define IWL_HOST_INT_TIMEOUT_MAX        (0xFF)
 881 #define IWL_HOST_INT_TIMEOUT_DEF        (0x40)
 882 #define IWL_HOST_INT_TIMEOUT_MIN        (0x0)
 883 #define IWL_HOST_INT_CALIB_TIMEOUT_MAX  (0xFF)
 884 #define IWL_HOST_INT_CALIB_TIMEOUT_DEF  (0x10)
 885 #define IWL_HOST_INT_CALIB_TIMEOUT_MIN  (0x0)
 886
 887 /*
 888  * This is the threshold value of plcp error rate per 100mSecs.  It is
 889  * used to set and check for the validity of plcp_delta.
 890  */
 891 #define IWL_MAX_PLCP_ERR_THRESHOLD_MIN  (1)
 892 #define IWL_MAX_PLCP_ERR_THRESHOLD_DEF  (50)
 893 #define IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF     (100)
 894 #define IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF (200)
 895 #define IWL_MAX_PLCP_ERR_THRESHOLD_MAX  (255)
 896 #define IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE      (0)
 897
 898 #define IWL_DELAY_NEXT_FORCE_RF_RESET  (HZ*3)
 899 #define IWL_DELAY_NEXT_FORCE_FW_RELOAD (HZ*5)
 900
 901 /* TX queue watchdog timeouts in mSecs */
 902 #define IWL_DEF_WD_TIMEOUT      (2000)
 903 #define IWL_LONG_WD_TIMEOUT     (10000)
 904 #define IWL_MAX_WD_TIMEOUT      (120000)
 905
 906 /* BT Antenna Coupling Threshold (dB) */
 907 #define IWL_BT_ANTENNA_COUPLING_THRESHOLD       (35)
 908
 909 /* Firmware reload counter and Timestamp */
 910 #define IWL_MIN_RELOAD_DURATION         1000 /* 1000 ms */
 911 #define IWL_MAX_CONTINUE_RELOAD_CNT     4
 912
 913
 914 enum iwl_reset {
 915         IWL_RF_RESET = 0,
 916         IWL_FW_RESET,
 917         IWL_MAX_FORCE_RESET,
 918 };
 919
 920 struct iwl_force_reset {
 921         int reset_request_count;
 922         int reset_success_count;
 923         int reset_reject_count;
 924         unsigned long reset_duration;
 925         unsigned long last_force_reset_jiffies;
 926 };
 927
 928 /* extend beacon time format bit shifting  */
 929 /*
 930  * for _agn devices
 931  * bits 31:22 - extended
 932  * bits 21:0  - interval
 933  */
 934 #define IWLAGN_EXT_BEACON_TIME_POS      22
 935
 936 /**
 937  * struct iwl_notification_wait - notification wait entry
 938  * @list: list head for global list
 939  * @fn: function called with the notification
 940  * @cmd: command ID
 941  *
 942  * This structure is not used directly, to wait for a
 943  * notification declare it on the stack, and call
 944  * iwlagn_init_notification_wait() with appropriate
 945  * parameters. Then do whatever will cause the ucode
 946  * to notify the driver, and to wait for that then
 947  * call iwlagn_wait_notification().
 948  *
 949  * Each notification is one-shot. If at some point we
 950  * need to support multi-shot notifications (which
 951  * can't be allocated on the stack) we need to modify
 952  * the code for them.
 953  */
 954 struct iwl_notification_wait {
 955         struct list_head list;
 956
 957         void (*fn)(struct iwl_priv *priv, struct iwl_rx_packet *pkt,
 958                    void *data);
 959         void *fn_data;
 960
 961         u8 cmd;
 962         bool triggered, aborted;
 963 };
 964
 965 struct iwl_rxon_context {
 966         struct ieee80211_vif *vif;
 967
 968         const u8 *ac_to_fifo;
 969         const u8 *ac_to_queue;
 970         u8 mcast_queue;
 971
 972         /*
 973          * We could use the vif to indicate active, but we
 974          * also need it to be active during disabling when
 975          * we already removed the vif for type setting.
 976          */
 977         bool always_active, is_active;
 978
 979         bool ht_need_multiple_chains;
 980
 981         enum iwl_rxon_context_id ctxid;
 982
 983         u32 interface_modes, exclusive_interface_modes;
 984         u8 unused_devtype, ap_devtype, ibss_devtype, station_devtype;
 985
 986         /*
 987          * We declare this const so it can only be
 988          * changed via explicit cast within the
 989          * routines that actually update the physical
 990          * hardware.
 991          */
 992         const struct iwl_rxon_cmd active;
 993         struct iwl_rxon_cmd staging;
 994
 995         struct iwl_rxon_time_cmd timing;
 996
 997         struct iwl_qos_info qos_data;
 998
 999         u8 bcast_sta_id, ap_sta_id;
1000
1001         u8 rxon_cmd, rxon_assoc_cmd, rxon_timing_cmd;
1002         u8 qos_cmd;
1003         u8 wep_key_cmd;
1004
1005         struct iwl_wep_key wep_keys[WEP_KEYS_MAX];
1006         u8 key_mapping_keys;
1007
1008         __le32 station_flags;
1009
1010         int beacon_int;
1011
1012         struct {
1013                 bool non_gf_sta_present;
1014                 u8 protection;
1015                 bool enabled, is_40mhz;
1016                 u8 extension_chan_offset;
1017         } ht;
1018
1019         bool last_tx_rejected;
1020 };
1021
1022 enum iwl_scan_type {
1023         IWL_SCAN_NORMAL,
1024         IWL_SCAN_RADIO_RESET,
1025         IWL_SCAN_ROC,
1026 };
1027
1028 enum iwlagn_ucode_type {
1029         IWL_UCODE_NONE,
1030         IWL_UCODE_REGULAR,
1031         IWL_UCODE_INIT,
1032         IWL_UCODE_WOWLAN,
1033 };
1034
1035 #ifdef CONFIG_IWLWIFI_DEVICE_SVTOOL
1036 struct iwl_testmode_trace {
1037         u32 buff_size;
1038         u32 total_size;
1039         u32 num_chunks;
1040         u8 *cpu_addr;
1041         u8 *trace_addr;
1042         dma_addr_t dma_addr;
1043         bool trace_enabled;
1044 };
1045 #endif
1046
1047 struct iwl_priv {
1048
1049         /*data shared among all the driver's layers */
1050         struct iwl_shared _shrd;
1051         struct iwl_shared *shrd;
1052
1053         /* ieee device used by generic ieee processing code */
1054         struct ieee80211_hw *hw;
1055         struct ieee80211_channel *ieee_channels;
1056         struct ieee80211_rate *ieee_rates;
1057         struct kmem_cache *tx_cmd_pool;
1058         struct iwl_cfg *cfg;
1059
1060         enum ieee80211_band band;
1061
1062         void (*pre_rx_handler)(struct iwl_priv *priv,
1063                                struct iwl_rx_mem_buffer *rxb);
1064         void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
1065                                        struct iwl_rx_mem_buffer *rxb);
1066
1067         struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
1068
1069         /* spectrum measurement report caching */
1070         struct iwl_spectrum_notification measure_report;
1071         u8 measurement_status;
1072
1073         /* ucode beacon time */
1074         u32 ucode_beacon_time;
1075         int missed_beacon_threshold;
1076
1077         /* track IBSS manager (last beacon) status */
1078         u32 ibss_manager;
1079
1080         /* jiffies when last recovery from statistics was performed */
1081         unsigned long rx_statistics_jiffies;
1082
1083         /*counters */
1084         u32 rx_handlers_stats[REPLY_MAX];
1085
1086         /* force reset */
1087         struct iwl_force_reset force_reset[IWL_MAX_FORCE_RESET];
1088
1089         /* firmware reload counter and timestamp */
1090         unsigned long reload_jiffies;
1091         int reload_count;
1092
1093         /* we allocate array of iwl_channel_info for NIC's valid channels.
1094          *    Access via channel # using indirect index array */
1095         struct iwl_channel_info *channel_info;  /* channel info array */
1096         u8 channel_count;       /* # of channels */
1097
1098         /* thermal calibration */
1099         s32 temperature;        /* degrees Kelvin */
1100         s32 last_temperature;
1101
1102         /* init calibration results */
1103         struct iwl_calib_result calib_results[IWL_CALIB_MAX];
1104
1105         /* Scan related variables */
1106         unsigned long scan_start;
1107         unsigned long scan_start_tsf;
1108         void *scan_cmd;
1109         enum ieee80211_band scan_band;
1110         struct cfg80211_scan_request *scan_request;
1111         struct ieee80211_vif *scan_vif;
1112         enum iwl_scan_type scan_type;
1113         u8 scan_tx_ant[IEEE80211_NUM_BANDS];
1114         u8 mgmt_tx_ant;
1115
1116         /*TODO: remove these pointers - use bus(priv) instead */
1117         struct iwl_bus *bus;    /* bus specific data */
1118
1119         /* microcode/device supports multiple contexts */
1120         u8 valid_contexts;
1121
1122         /* max number of station keys */
1123         u8 sta_key_max_num;
1124
1125         bool new_scan_threshold_behaviour;
1126
1127         /* EEPROM MAC addresses */
1128         struct mac_address addresses[2];
1129
1130         /* uCode images, save to reload in case of failure */
1131         int fw_index;                   /* firmware we're trying to load */
1132         u32 ucode_ver;                  /* version of ucode, copy of
1133                                            iwl_ucode.ver */
1134
1135         struct fw_img ucode_rt;
1136         struct fw_img ucode_init;
1137         struct fw_img ucode_wowlan;
1138
1139         enum iwlagn_ucode_type ucode_type;
1140         u8 ucode_write_complete;        /* the image write is complete */
1141         char firmware_name[25];
1142
1143         struct iwl_rxon_context contexts[NUM_IWL_RXON_CTX];
1144
1145         __le16 switch_channel;
1146
1147         struct {
1148                 u32 error_event_table;
1149                 u32 log_event_table;
1150         } device_pointers;
1151
1152         u16 active_rate;
1153
1154         u8 start_calib;
1155         struct iwl_sensitivity_data sensitivity_data;
1156         struct iwl_chain_noise_data chain_noise_data;
1157         bool enhance_sensitivity_table;
1158         __le16 sensitivity_tbl[HD_TABLE_SIZE];
1159         __le16 enhance_sensitivity_tbl[ENHANCE_HD_TABLE_ENTRIES];
1160
1161         struct iwl_ht_config current_ht_config;
1162
1163         /* Rate scaling data */
1164         u8 retry_rate;
1165
1166         wait_queue_head_t wait_command_queue;
1167
1168         int activity_timer_active;
1169
1170         /* Tx DMA processing queues */
1171         struct iwl_tx_queue *txq;
1172         unsigned long txq_ctx_active_msk;
1173
1174         /* counts mgmt, ctl, and data packets */
1175         struct traffic_stats tx_stats;
1176         struct traffic_stats rx_stats;
1177
1178         struct iwl_power_mgr power_data;
1179         struct iwl_tt_mgmt thermal_throttle;
1180
1181         /* station table variables */
1182         int num_stations;
1183         struct iwl_station_entry stations[IWLAGN_STATION_COUNT];
1184         unsigned long ucode_key_table;
1185
1186         /* queue refcounts */
1187 #define IWL_MAX_HW_QUEUES       32
1188         unsigned long queue_stopped[BITS_TO_LONGS(IWL_MAX_HW_QUEUES)];
1189         /* for each AC */
1190         atomic_t queue_stop_count[4];
1191
1192         /* Indication if ieee80211_ops->open has been called */
1193         u8 is_open;
1194
1195         u8 mac80211_registered;
1196
1197         /* eeprom -- this is in the card's little endian byte order */
1198         u8 *eeprom;
1199         int    nvm_device_type;
1200         struct iwl_eeprom_calib_info *calib_info;
1201
1202         enum nl80211_iftype iw_mode;
1203
1204         /* Last Rx'd beacon timestamp */
1205         u64 timestamp;
1206
1207         struct {
1208                 __le32 flag;
1209                 struct statistics_general_common common;
1210                 struct statistics_rx_non_phy rx_non_phy;
1211                 struct statistics_rx_phy rx_ofdm;
1212                 struct statistics_rx_ht_phy rx_ofdm_ht;
1213                 struct statistics_rx_phy rx_cck;
1214                 struct statistics_tx tx;
1215 #ifdef CONFIG_IWLWIFI_DEBUGFS
1216                 struct statistics_bt_activity bt_activity;
1217                 __le32 num_bt_kills, accum_num_bt_kills;
1218 #endif
1219         } statistics;
1220 #ifdef CONFIG_IWLWIFI_DEBUGFS
1221         struct {
1222                 struct statistics_general_common common;
1223                 struct statistics_rx_non_phy rx_non_phy;
1224                 struct statistics_rx_phy rx_ofdm;
1225                 struct statistics_rx_ht_phy rx_ofdm_ht;
1226                 struct statistics_rx_phy rx_cck;
1227                 struct statistics_tx tx;
1228                 struct statistics_bt_activity bt_activity;
1229         } accum_stats, delta_stats, max_delta_stats;
1230 #endif
1231
1232         /*
1233          * reporting the number of tids has AGG on. 0 means
1234          * no AGGREGATION
1235          */
1236         u8 agg_tids_count;
1237
1238         struct iwl_rx_phy_res last_phy_res;
1239         bool last_phy_res_valid;
1240
1241         struct completion firmware_loading_complete;
1242
1243         u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
1244         u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
1245
1246         /*
1247          * chain noise reset and gain commands are the
1248          * two extra calibration commands follows the standard
1249          * phy calibration commands
1250          */
1251         u8 phy_calib_chain_noise_reset_cmd;
1252         u8 phy_calib_chain_noise_gain_cmd;
1253
1254         /* counts reply_tx error */
1255         struct reply_tx_error_statistics reply_tx_stats;
1256         struct reply_agg_tx_error_statistics reply_agg_tx_stats;
1257         /* notification wait support */
1258         struct list_head notif_waits;
1259         spinlock_t notif_wait_lock;
1260         wait_queue_head_t notif_waitq;
1261
1262         /* remain-on-channel offload support */
1263         struct ieee80211_channel *hw_roc_channel;
1264         struct delayed_work hw_roc_disable_work;
1265         enum nl80211_channel_type hw_roc_chantype;
1266         int hw_roc_duration;
1267         bool hw_roc_setup;
1268
1269         /* bt coex */
1270         u8 bt_enable_flag;
1271         u8 bt_status;
1272         u8 bt_traffic_load, last_bt_traffic_load;
1273         bool bt_ch_announce;
1274         bool bt_full_concurrent;
1275         bool bt_ant_couple_ok;
1276         __le32 kill_ack_mask;
1277         __le32 kill_cts_mask;
1278         __le16 bt_valid;
1279         u16 bt_on_thresh;
1280         u16 bt_duration;
1281         u16 dynamic_frag_thresh;
1282         u8 bt_ci_compliance;
1283         struct work_struct bt_traffic_change_work;
1284         bool bt_enable_pspoll;
1285         struct iwl_rxon_context *cur_rssi_ctx;
1286         bool bt_is_sco;
1287
1288         struct work_struct restart;
1289         struct work_struct scan_completed;
1290         struct work_struct abort_scan;
1291
1292         struct work_struct beacon_update;
1293         struct iwl_rxon_context *beacon_ctx;
1294         struct sk_buff *beacon_skb;
1295         void *beacon_cmd;
1296
1297         struct work_struct tt_work;
1298         struct work_struct ct_enter;
1299         struct work_struct ct_exit;
1300         struct work_struct start_internal_scan;
1301         struct work_struct tx_flush;
1302         struct work_struct bt_full_concurrency;
1303         struct work_struct bt_runtime_config;
1304
1305         struct delayed_work scan_check;
1306
1307         /* TX Power */
1308         s8 tx_power_user_lmt;
1309         s8 tx_power_device_lmt;
1310         s8 tx_power_lmt_in_half_dbm; /* max tx power in half-dBm format */
1311         s8 tx_power_next;
1312
1313 #ifdef CONFIG_IWLWIFI_DEBUGFS
1314         /* debugfs */
1315         u16 tx_traffic_idx;
1316         u16 rx_traffic_idx;
1317         u8 *tx_traffic;
1318         u8 *rx_traffic;
1319         struct dentry *debugfs_dir;
1320         u32 dbgfs_sram_offset, dbgfs_sram_len;
1321         bool disable_ht40;
1322         void *wowlan_sram;
1323 #endif /* CONFIG_IWLWIFI_DEBUGFS */
1324
1325         struct work_struct txpower_work;
1326         u32 disable_sens_cal;
1327         u32 disable_chain_noise_cal;
1328         struct work_struct run_time_calib_work;
1329         struct timer_list statistics_periodic;
1330         struct timer_list ucode_trace;
1331         struct timer_list watchdog;
1332
1333         struct iwl_event_log event_log;
1334
1335         struct led_classdev led;
1336         unsigned long blink_on, blink_off;
1337         bool led_registered;
1338 #ifdef CONFIG_IWLWIFI_DEVICE_SVTOOL
1339         struct iwl_testmode_trace testmode_trace;
1340         u32 tm_fixed_rate;
1341 #endif
1342
1343         /* WoWLAN GTK rekey data */
1344         u8 kck[NL80211_KCK_LEN], kek[NL80211_KEK_LEN];
1345         __le64 replay_ctr;
1346         __le16 last_seq_ctl;
1347         bool have_rekey_data;
1348 }; /*iwl_priv */
1349
1350 static inline void iwl_txq_ctx_activate(struct iwl_priv *priv, int txq_id)
1351 {
1352         set_bit(txq_id, &priv->txq_ctx_active_msk);
1353 }
1354
1355 static inline void iwl_txq_ctx_deactivate(struct iwl_priv *priv, int txq_id)
1356 {
1357         clear_bit(txq_id, &priv->txq_ctx_active_msk);
1358 }
1359
1360 extern struct iwl_mod_params iwlagn_mod_params;
1361
1362 static inline struct ieee80211_hdr *iwl_tx_queue_get_hdr(struct iwl_priv *priv,
1363                                                          int txq_id, int idx)
1364 {
1365         if (priv->txq[txq_id].skbs[idx])
1366                 return (struct ieee80211_hdr *)priv->txq[txq_id].
1367                                 skbs[idx]->data;
1368         return NULL;
1369 }
1370
1371 static inline struct iwl_rxon_context *
1372 iwl_rxon_ctx_from_vif(struct ieee80211_vif *vif)
1373 {
1374         struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
1375
1376         return vif_priv->ctx;
1377 }
1378
1379 #define for_each_context(priv, ctx)                             \
1380         for (ctx = &priv->contexts[IWL_RXON_CTX_BSS];           \
1381              ctx < &priv->contexts[NUM_IWL_RXON_CTX]; ctx++)    \
1382                 if (priv->valid_contexts & BIT(ctx->ctxid))
1383
1384 static inline int iwl_is_associated_ctx(struct iwl_rxon_context *ctx)
1385 {
1386         return (ctx->active.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
1387 }
1388
1389 static inline int iwl_is_associated(struct iwl_priv *priv,
1390                                     enum iwl_rxon_context_id ctxid)
1391 {
1392         return iwl_is_associated_ctx(&priv->contexts[ctxid]);
1393 }
1394
1395 static inline int iwl_is_any_associated(struct iwl_priv *priv)
1396 {
1397         struct iwl_rxon_context *ctx;
1398         for_each_context(priv, ctx)
1399                 if (iwl_is_associated_ctx(ctx))
1400                         return true;
1401         return false;
1402 }
1403
1404 static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
1405 {
1406         if (ch_info == NULL)
1407                 return 0;
1408         return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
1409 }
1410
1411 static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
1412 {
1413         return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
1414 }
1415
1416 static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
1417 {
1418         return ch_info->band == IEEE80211_BAND_5GHZ;
1419 }
1420
1421 static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
1422 {
1423         return ch_info->band == IEEE80211_BAND_2GHZ;
1424 }
1425
1426 static inline int is_channel_passive(const struct iwl_channel_info *ch)
1427 {
1428         return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1429 }
1430
1431 static inline int is_channel_ibss(const struct iwl_channel_info *ch)
1432 {
1433         return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1434 }
1435
1436 #endif                          /* __iwl_dev_h__ */