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