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

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2003 - 2009 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  * Please use iwl-4965-hw.h for hardware-related definitions.
  30  */
  31
  32 #ifndef __iwl_dev_h__
  33 #define __iwl_dev_h__
  34
  35 #include <linux/pci.h> /* for struct pci_device_id */
  36 #include <linux/kernel.h>
  37 #include <net/ieee80211_radiotap.h>
  38
  39 #include "iwl-eeprom.h"
  40 #include "iwl-csr.h"
  41 #include "iwl-prph.h"
  42 #include "iwl-fh.h"
  43 #include "iwl-debug.h"
  44 #include "iwl-4965-hw.h"
  45 #include "iwl-3945-hw.h"
  46 #include "iwl-led.h"
  47 #include "iwl-power.h"
  48 #include "iwl-agn-rs.h"
  49
  50 /* configuration for the iwl4965 */
  51 extern struct iwl_cfg iwl4965_agn_cfg;
  52 extern struct iwl_cfg iwl5300_agn_cfg;
  53 extern struct iwl_cfg iwl5100_agn_cfg;
  54 extern struct iwl_cfg iwl5350_agn_cfg;
  55 extern struct iwl_cfg iwl5100_bg_cfg;
  56 extern struct iwl_cfg iwl5100_abg_cfg;
  57 extern struct iwl_cfg iwl5150_agn_cfg;
  58 extern struct iwl_cfg iwl6000h_2agn_cfg;
  59 extern struct iwl_cfg iwl6000h_2abg_cfg;
  60 extern struct iwl_cfg iwl6000h_2bg_cfg;
  61 extern struct iwl_cfg iwl6000i_2agn_cfg;
  62 extern struct iwl_cfg iwl6000i_2abg_cfg;
  63 extern struct iwl_cfg iwl6000i_2bg_cfg;
  64 extern struct iwl_cfg iwl6000_3agn_cfg;
  65 extern struct iwl_cfg iwl6050_2agn_cfg;
  66 extern struct iwl_cfg iwl6050_2abg_cfg;
  67 extern struct iwl_cfg iwl6050_3agn_cfg;
  68 extern struct iwl_cfg iwl1000_bgn_cfg;
  69 extern struct iwl_cfg iwl1000_bg_cfg;
  70
  71 struct iwl_tx_queue;
  72
  73 /* shared structures from iwl-5000.c */
  74 extern struct iwl_mod_params iwl50_mod_params;
  75 extern struct iwl_ucode_ops iwl5000_ucode;
  76 extern struct iwl_lib_ops iwl5000_lib;
  77 extern struct iwl_hcmd_ops iwl5000_hcmd;
  78 extern struct iwl_hcmd_utils_ops iwl5000_hcmd_utils;
  79
  80 /* shared functions from iwl-5000.c */
  81 extern u16 iwl5000_get_hcmd_size(u8 cmd_id, u16 len);
  82 extern u16 iwl5000_build_addsta_hcmd(const struct iwl_addsta_cmd *cmd,
  83                                      u8 *data);
  84 extern void iwl5000_rts_tx_cmd_flag(struct ieee80211_tx_info *info,
  85                                     __le32 *tx_flags);
  86 extern int iwl5000_calc_rssi(struct iwl_priv *priv,
  87                              struct iwl_rx_phy_res *rx_resp);
  88 extern void iwl5000_nic_config(struct iwl_priv *priv);
  89 extern u16 iwl5000_eeprom_calib_version(struct iwl_priv *priv);
  90 extern const u8 *iwl5000_eeprom_query_addr(const struct iwl_priv *priv,
  91                                     size_t offset);
  92 extern void iwl5000_txq_update_byte_cnt_tbl(struct iwl_priv *priv,
  93                                             struct iwl_tx_queue *txq,
  94                                             u16 byte_cnt);
  95 extern void iwl5000_txq_inval_byte_cnt_tbl(struct iwl_priv *priv,
  96                                     struct iwl_tx_queue *txq);
  97 extern int iwl5000_load_ucode(struct iwl_priv *priv);
  98 extern void iwl5000_init_alive_start(struct iwl_priv *priv);
  99 extern int iwl5000_alive_notify(struct iwl_priv *priv);
 100 extern int iwl5000_hw_set_hw_params(struct iwl_priv *priv);
 101 extern int iwl5000_txq_agg_enable(struct iwl_priv *priv, int txq_id,
 102                            int tx_fifo, int sta_id, int tid, u16 ssn_idx);
 103 extern int iwl5000_txq_agg_disable(struct iwl_priv *priv, u16 txq_id,
 104                             u16 ssn_idx, u8 tx_fifo);
 105 extern void iwl5000_txq_set_sched(struct iwl_priv *priv, u32 mask);
 106 extern void iwl5000_setup_deferred_work(struct iwl_priv *priv);
 107 extern void iwl5000_rx_handler_setup(struct iwl_priv *priv);
 108 extern int iwl5000_hw_valid_rtc_data_addr(u32 addr);
 109 extern int iwl5000_send_tx_power(struct iwl_priv *priv);
 110 extern void iwl5000_temperature(struct iwl_priv *priv);
 111
 112 /* CT-KILL constants */
 113 #define CT_KILL_THRESHOLD_LEGACY   110 /* in Celsius */
 114 #define CT_KILL_THRESHOLD          114 /* in Celsius */
 115 #define CT_KILL_EXIT_THRESHOLD     95  /* in Celsius */
 116
 117 /* Default noise level to report when noise measurement is not available.
 118  *   This may be because we're:
 119  *   1)  Not associated (4965, no beacon statistics being sent to driver)
 120  *   2)  Scanning (noise measurement does not apply to associated channel)
 121  *   3)  Receiving CCK (3945 delivers noise info only for OFDM frames)
 122  * Use default noise value of -127 ... this is below the range of measurable
 123  *   Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
 124  *   Also, -127 works better than 0 when averaging frames with/without
 125  *   noise info (e.g. averaging might be done in app); measured dBm values are
 126  *   always negative ... using a negative value as the default keeps all
 127  *   averages within an s8's (used in some apps) range of negative values. */
 128 #define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
 129
 130 /*
 131  * RTS threshold here is total size [2347] minus 4 FCS bytes
 132  * Per spec:
 133  *   a value of 0 means RTS on all data/management packets
 134  *   a value > max MSDU size means no RTS
 135  * else RTS for data/management frames where MPDU is larger
 136  *   than RTS value.
 137  */
 138 #define DEFAULT_RTS_THRESHOLD     2347U
 139 #define MIN_RTS_THRESHOLD         0U
 140 #define MAX_RTS_THRESHOLD         2347U
 141 #define MAX_MSDU_SIZE             2304U
 142 #define MAX_MPDU_SIZE             2346U
 143 #define DEFAULT_BEACON_INTERVAL   100U
 144 #define DEFAULT_SHORT_RETRY_LIMIT 7U
 145 #define DEFAULT_LONG_RETRY_LIMIT  4U
 146
 147 struct iwl_rx_mem_buffer {
 148         dma_addr_t page_dma;
 149         struct page *page;
 150         struct list_head list;
 151 };
 152
 153 #define rxb_addr(r) page_address(r->page)
 154
 155 /* defined below */
 156 struct iwl_device_cmd;
 157
 158 struct iwl_cmd_meta {
 159         /* only for SYNC commands, iff the reply skb is wanted */
 160         struct iwl_host_cmd *source;
 161         /*
 162          * only for ASYNC commands
 163          * (which is somewhat stupid -- look at iwl-sta.c for instance
 164          * which duplicates a bunch of code because the callback isn't
 165          * invoked for SYNC commands, if it were and its result passed
 166          * through it would be simpler...)
 167          */
 168         void (*callback)(struct iwl_priv *priv,
 169                          struct iwl_device_cmd *cmd,
 170                          struct iwl_rx_packet *pkt);
 171
 172         /* The CMD_SIZE_HUGE flag bit indicates that the command
 173          * structure is stored at the end of the shared queue memory. */
 174         u32 flags;
 175
 176         DECLARE_PCI_UNMAP_ADDR(mapping)
 177         DECLARE_PCI_UNMAP_LEN(len)
 178 };
 179
 180 /*
 181  * Generic queue structure
 182  *
 183  * Contains common data for Rx and Tx queues
 184  */
 185 struct iwl_queue {
 186         int n_bd;              /* number of BDs in this queue */
 187         int write_ptr;       /* 1-st empty entry (index) host_w*/
 188         int read_ptr;         /* last used entry (index) host_r*/
 189         dma_addr_t dma_addr;   /* physical addr for BD's */
 190         int n_window;          /* safe queue window */
 191         u32 id;
 192         int low_mark;          /* low watermark, resume queue if free
 193                                 * space more than this */
 194         int high_mark;         /* high watermark, stop queue if free
 195                                 * space less than this */
 196 } __attribute__ ((packed));
 197
 198 /* One for each TFD */
 199 struct iwl_tx_info {
 200         struct sk_buff *skb[IWL_NUM_OF_TBS - 1];
 201 };
 202
 203 /**
 204  * struct iwl_tx_queue - Tx Queue for DMA
 205  * @q: generic Rx/Tx queue descriptor
 206  * @bd: base of circular buffer of TFDs
 207  * @cmd: array of command/TX buffer pointers
 208  * @meta: array of meta data for each command/tx buffer
 209  * @dma_addr_cmd: physical address of cmd/tx buffer array
 210  * @txb: array of per-TFD driver data
 211  * @need_update: indicates need to update read/write index
 212  * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
 213  *
 214  * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
 215  * descriptors) and required locking structures.
 216  */
 217 #define TFD_TX_CMD_SLOTS 256
 218 #define TFD_CMD_SLOTS 32
 219
 220 struct iwl_tx_queue {
 221         struct iwl_queue q;
 222         void *tfds;
 223         struct iwl_device_cmd **cmd;
 224         struct iwl_cmd_meta *meta;
 225         struct iwl_tx_info *txb;
 226         u8 need_update;
 227         u8 sched_retry;
 228         u8 active;
 229         u8 swq_id;
 230 };
 231
 232 #define IWL_NUM_SCAN_RATES         (2)
 233
 234 struct iwl4965_channel_tgd_info {
 235         u8 type;
 236         s8 max_power;
 237 };
 238
 239 struct iwl4965_channel_tgh_info {
 240         s64 last_radar_time;
 241 };
 242
 243 #define IWL4965_MAX_RATE (33)
 244
 245 struct iwl3945_clip_group {
 246         /* maximum power level to prevent clipping for each rate, derived by
 247          *   us from this band's saturation power in EEPROM */
 248         const s8 clip_powers[IWL_MAX_RATES];
 249 };
 250
 251 /* current Tx power values to use, one for each rate for each channel.
 252  * requested power is limited by:
 253  * -- regulatory EEPROM limits for this channel
 254  * -- hardware capabilities (clip-powers)
 255  * -- spectrum management
 256  * -- user preference (e.g. iwconfig)
 257  * when requested power is set, base power index must also be set. */
 258 struct iwl3945_channel_power_info {
 259         struct iwl3945_tx_power tpc;    /* actual radio and DSP gain settings */
 260         s8 power_table_index;   /* actual (compenst'd) index into gain table */
 261         s8 base_power_index;    /* gain index for power at factory temp. */
 262         s8 requested_power;     /* power (dBm) requested for this chnl/rate */
 263 };
 264
 265 /* current scan Tx power values to use, one for each scan rate for each
 266  * channel. */
 267 struct iwl3945_scan_power_info {
 268         struct iwl3945_tx_power tpc;    /* actual radio and DSP gain settings */
 269         s8 power_table_index;   /* actual (compenst'd) index into gain table */
 270         s8 requested_power;     /* scan pwr (dBm) requested for chnl/rate */
 271 };
 272
 273 /*
 274  * One for each channel, holds all channel setup data
 275  * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
 276  *     with one another!
 277  */
 278 struct iwl_channel_info {
 279         struct iwl4965_channel_tgd_info tgd;
 280         struct iwl4965_channel_tgh_info tgh;
 281         struct iwl_eeprom_channel eeprom;       /* EEPROM regulatory limit */
 282         struct iwl_eeprom_channel ht40_eeprom;  /* EEPROM regulatory limit for
 283                                                  * HT40 channel */
 284
 285         u8 channel;       /* channel number */
 286         u8 flags;         /* flags copied from EEPROM */
 287         s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
 288         s8 curr_txpow;    /* (dBm) regulatory/spectrum/user (not h/w) limit */
 289         s8 min_power;     /* always 0 */
 290         s8 scan_power;    /* (dBm) regul. eeprom, direct scans, any rate */
 291
 292         u8 group_index;   /* 0-4, maps channel to group1/2/3/4/5 */
 293         u8 band_index;    /* 0-4, maps channel to band1/2/3/4/5 */
 294         enum ieee80211_band band;
 295
 296         /* HT40 channel info */
 297         s8 ht40_max_power_avg;  /* (dBm) regul. eeprom, normal Tx, any rate */
 298         s8 ht40_curr_txpow;     /* (dBm) regulatory/spectrum/user (not h/w) */
 299         s8 ht40_min_power;      /* always 0 */
 300         s8 ht40_scan_power;     /* (dBm) eeprom, direct scans, any rate */
 301         u8 ht40_flags;          /* flags copied from EEPROM */
 302         u8 ht40_extension_channel; /* HT_IE_EXT_CHANNEL_* */
 303
 304         /* Radio/DSP gain settings for each "normal" data Tx rate.
 305          * These include, in addition to RF and DSP gain, a few fields for
 306          *   remembering/modifying gain settings (indexes). */
 307         struct iwl3945_channel_power_info power_info[IWL4965_MAX_RATE];
 308
 309         /* Radio/DSP gain settings for each scan rate, for directed scans. */
 310         struct iwl3945_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES];
 311 };
 312
 313 #define IWL_TX_FIFO_AC0 0
 314 #define IWL_TX_FIFO_AC1 1
 315 #define IWL_TX_FIFO_AC2 2
 316 #define IWL_TX_FIFO_AC3 3
 317 #define IWL_TX_FIFO_HCCA_1      5
 318 #define IWL_TX_FIFO_HCCA_2      6
 319 #define IWL_TX_FIFO_NONE        7
 320
 321 /* Minimum number of queues. MAX_NUM is defined in hw specific files.
 322  * Set the minimum to accommodate the 4 standard TX queues, 1 command
 323  * queue, 2 (unused) HCCA queues, and 4 HT queues (one for each AC) */
 324 #define IWL_MIN_NUM_QUEUES      10
 325
 326 /*
 327  * Queue #4 is the command queue for 3945/4965/5x00/1000/6x00,
 328  * the driver maps it into the appropriate device FIFO for the
 329  * uCode.
 330  */
 331 #define IWL_CMD_QUEUE_NUM       4
 332
 333 /* Power management (not Tx power) structures */
 334
 335 enum iwl_pwr_src {
 336         IWL_PWR_SRC_VMAIN,
 337         IWL_PWR_SRC_VAUX,
 338 };
 339
 340 #define IEEE80211_DATA_LEN              2304
 341 #define IEEE80211_4ADDR_LEN             30
 342 #define IEEE80211_HLEN                  (IEEE80211_4ADDR_LEN)
 343 #define IEEE80211_FRAME_LEN             (IEEE80211_DATA_LEN + IEEE80211_HLEN)
 344
 345 struct iwl_frame {
 346         union {
 347                 struct ieee80211_hdr frame;
 348                 struct iwl_tx_beacon_cmd beacon;
 349                 u8 raw[IEEE80211_FRAME_LEN];
 350                 u8 cmd[360];
 351         } u;
 352         struct list_head list;
 353 };
 354
 355 #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
 356 #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
 357 #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
 358
 359 enum {
 360         CMD_SYNC = 0,
 361         CMD_SIZE_NORMAL = 0,
 362         CMD_NO_SKB = 0,
 363         CMD_SIZE_HUGE = (1 << 0),
 364         CMD_ASYNC = (1 << 1),
 365         CMD_WANT_SKB = (1 << 2),
 366 };
 367
 368 #define DEF_CMD_PAYLOAD_SIZE 320
 369
 370 /*
 371  * IWL_LINK_HDR_MAX should include ieee80211_hdr, radiotap header,
 372  * SNAP header and alignment. It should also be big enough for 802.11
 373  * control frames.
 374  */
 375 #define IWL_LINK_HDR_MAX 64
 376
 377 /**
 378  * struct iwl_device_cmd
 379  *
 380  * For allocation of the command and tx queues, this establishes the overall
 381  * size of the largest command we send to uCode, except for a scan command
 382  * (which is relatively huge; space is allocated separately).
 383  */
 384 struct iwl_device_cmd {
 385         struct iwl_cmd_header hdr;      /* uCode API */
 386         union {
 387                 u32 flags;
 388                 u8 val8;
 389                 u16 val16;
 390                 u32 val32;
 391                 struct iwl_tx_cmd tx;
 392                 struct iwl6000_channel_switch_cmd chswitch;
 393                 u8 payload[DEF_CMD_PAYLOAD_SIZE];
 394         } __attribute__ ((packed)) cmd;
 395 } __attribute__ ((packed));
 396
 397 #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_device_cmd))
 398
 399
 400 struct iwl_host_cmd {
 401         const void *data;
 402         unsigned long reply_page;
 403         void (*callback)(struct iwl_priv *priv,
 404                          struct iwl_device_cmd *cmd,
 405                          struct iwl_rx_packet *pkt);
 406         u32 flags;
 407         u16 len;
 408         u8 id;
 409 };
 410
 411 #define SUP_RATE_11A_MAX_NUM_CHANNELS  8
 412 #define SUP_RATE_11B_MAX_NUM_CHANNELS  4
 413 #define SUP_RATE_11G_MAX_NUM_CHANNELS  12
 414
 415 /**
 416  * struct iwl_rx_queue - Rx queue
 417  * @bd: driver's pointer to buffer of receive buffer descriptors (rbd)
 418  * @dma_addr: bus address of buffer of receive buffer descriptors (rbd)
 419  * @read: Shared index to newest available Rx buffer
 420  * @write: Shared index to oldest written Rx packet
 421  * @free_count: Number of pre-allocated buffers in rx_free
 422  * @rx_free: list of free SKBs for use
 423  * @rx_used: List of Rx buffers with no SKB
 424  * @need_update: flag to indicate we need to update read/write index
 425  * @rb_stts: driver's pointer to receive buffer status
 426  * @rb_stts_dma: bus address of receive buffer status
 427  *
 428  * NOTE:  rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers
 429  */
 430 struct iwl_rx_queue {
 431         __le32 *bd;
 432         dma_addr_t dma_addr;
 433         struct iwl_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
 434         struct iwl_rx_mem_buffer *queue[RX_QUEUE_SIZE];
 435         u32 read;
 436         u32 write;
 437         u32 free_count;
 438         u32 write_actual;
 439         struct list_head rx_free;
 440         struct list_head rx_used;
 441         int need_update;
 442         struct iwl_rb_status *rb_stts;
 443         dma_addr_t rb_stts_dma;
 444         spinlock_t lock;
 445 };
 446
 447 #define IWL_SUPPORTED_RATES_IE_LEN         8
 448
 449 #define MAX_TID_COUNT        9
 450
 451 #define IWL_INVALID_RATE     0xFF
 452 #define IWL_INVALID_VALUE    -1
 453
 454 /**
 455  * struct iwl_ht_agg -- aggregation status while waiting for block-ack
 456  * @txq_id: Tx queue used for Tx attempt
 457  * @frame_count: # frames attempted by Tx command
 458  * @wait_for_ba: Expect block-ack before next Tx reply
 459  * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
 460  * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
 461  * @bitmap1: High order, one bit for each frame pending ACK in Tx window
 462  * @rate_n_flags: Rate at which Tx was attempted
 463  *
 464  * If REPLY_TX indicates that aggregation was attempted, driver must wait
 465  * for block ack (REPLY_COMPRESSED_BA).  This struct stores tx reply info
 466  * until block ack arrives.
 467  */
 468 struct iwl_ht_agg {
 469         u16 txq_id;
 470         u16 frame_count;
 471         u16 wait_for_ba;
 472         u16 start_idx;
 473         u64 bitmap;
 474         u32 rate_n_flags;
 475 #define IWL_AGG_OFF 0
 476 #define IWL_AGG_ON 1
 477 #define IWL_EMPTYING_HW_QUEUE_ADDBA 2
 478 #define IWL_EMPTYING_HW_QUEUE_DELBA 3
 479         u8 state;
 480 };
 481
 482
 483 struct iwl_tid_data {
 484         u16 seq_number;
 485         u16 tfds_in_queue;
 486         struct iwl_ht_agg agg;
 487 };
 488
 489 struct iwl_hw_key {
 490         enum ieee80211_key_alg alg;
 491         int keylen;
 492         u8 keyidx;
 493         u8 key[32];
 494 };
 495
 496 union iwl_ht_rate_supp {
 497         u16 rates;
 498         struct {
 499                 u8 siso_rate;
 500                 u8 mimo_rate;
 501         };
 502 };
 503
 504 #define CFG_HT_RX_AMPDU_FACTOR_DEF  (0x3)
 505
 506 /*
 507  * Maximal MPDU density for TX aggregation
 508  * 4 - 2us density
 509  * 5 - 4us density
 510  * 6 - 8us density
 511  * 7 - 16us density
 512  */
 513 #define CFG_HT_MPDU_DENSITY_4USEC   (0x5)
 514 #define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_4USEC
 515
 516 struct iwl_ht_config {
 517         /* self configuration data */
 518         bool is_ht;
 519         bool is_40mhz;
 520         bool single_chain_sufficient;
 521         u8 sm_ps;
 522         /* BSS related data */
 523         u8 extension_chan_offset;
 524         u8 ht_protection;
 525         u8 non_GF_STA_present;
 526 };
 527
 528 union iwl_qos_capabity {
 529         struct {
 530                 u8 edca_count:4;        /* bit 0-3 */
 531                 u8 q_ack:1;             /* bit 4 */
 532                 u8 queue_request:1;     /* bit 5 */
 533                 u8 txop_request:1;      /* bit 6 */
 534                 u8 reserved:1;          /* bit 7 */
 535         } q_AP;
 536         struct {
 537                 u8 acvo_APSD:1;         /* bit 0 */
 538                 u8 acvi_APSD:1;         /* bit 1 */
 539                 u8 ac_bk_APSD:1;        /* bit 2 */
 540                 u8 ac_be_APSD:1;        /* bit 3 */
 541                 u8 q_ack:1;             /* bit 4 */
 542                 u8 max_len:2;           /* bit 5-6 */
 543                 u8 more_data_ack:1;     /* bit 7 */
 544         } q_STA;
 545         u8 val;
 546 };
 547
 548 /* QoS structures */
 549 struct iwl_qos_info {
 550         int qos_active;
 551         union iwl_qos_capabity qos_cap;
 552         struct iwl_qosparam_cmd def_qos_parm;
 553 };
 554
 555 #define STA_PS_STATUS_WAKE             0
 556 #define STA_PS_STATUS_SLEEP            1
 557
 558
 559 struct iwl3945_station_entry {
 560         struct iwl3945_addsta_cmd sta;
 561         struct iwl_tid_data tid[MAX_TID_COUNT];
 562         u8 used;
 563         u8 ps_status;
 564         struct iwl_hw_key keyinfo;
 565 };
 566
 567 struct iwl_station_entry {
 568         struct iwl_addsta_cmd sta;
 569         struct iwl_tid_data tid[MAX_TID_COUNT];
 570         u8 used;
 571         u8 ps_status;
 572         struct iwl_hw_key keyinfo;
 573 };
 574
 575 /*
 576  * iwl_station_priv: Driver's private station information
 577  *
 578  * When mac80211 creates a station it reserves some space (hw->sta_data_size)
 579  * in the structure for use by driver. This structure is places in that
 580  * space.
 581  *
 582  * At the moment use it for the station's rate scaling information.
 583  */
 584 struct iwl_station_priv {
 585         struct iwl_lq_sta lq_sta;
 586 };
 587
 588 /* one for each uCode image (inst/data, boot/init/runtime) */
 589 struct fw_desc {
 590         void *v_addr;           /* access by driver */
 591         dma_addr_t p_addr;      /* access by card's busmaster DMA */
 592         u32 len;                /* bytes */
 593 };
 594
 595 /* uCode file layout */
 596 struct iwl_ucode_header {
 597         __le32 ver;     /* major/minor/API/serial */
 598         union {
 599                 struct {
 600                         __le32 inst_size;       /* bytes of runtime code */
 601                         __le32 data_size;       /* bytes of runtime data */
 602                         __le32 init_size;       /* bytes of init code */
 603                         __le32 init_data_size;  /* bytes of init data */
 604                         __le32 boot_size;       /* bytes of bootstrap code */
 605                         u8 data[0];             /* in same order as sizes */
 606                 } v1;
 607                 struct {
 608                         __le32 build;           /* build number */
 609                         __le32 inst_size;       /* bytes of runtime code */
 610                         __le32 data_size;       /* bytes of runtime data */
 611                         __le32 init_size;       /* bytes of init code */
 612                         __le32 init_data_size;  /* bytes of init data */
 613                         __le32 boot_size;       /* bytes of bootstrap code */
 614                         u8 data[0];             /* in same order as sizes */
 615                 } v2;
 616         } u;
 617 };
 618 #define UCODE_HEADER_SIZE(ver) ((ver) == 1 ? 24 : 28)
 619
 620 struct iwl4965_ibss_seq {
 621         u8 mac[ETH_ALEN];
 622         u16 seq_num;
 623         u16 frag_num;
 624         unsigned long packet_time;
 625         struct list_head list;
 626 };
 627
 628 struct iwl_sensitivity_ranges {
 629         u16 min_nrg_cck;
 630         u16 max_nrg_cck;
 631
 632         u16 nrg_th_cck;
 633         u16 nrg_th_ofdm;
 634
 635         u16 auto_corr_min_ofdm;
 636         u16 auto_corr_min_ofdm_mrc;
 637         u16 auto_corr_min_ofdm_x1;
 638         u16 auto_corr_min_ofdm_mrc_x1;
 639
 640         u16 auto_corr_max_ofdm;
 641         u16 auto_corr_max_ofdm_mrc;
 642         u16 auto_corr_max_ofdm_x1;
 643         u16 auto_corr_max_ofdm_mrc_x1;
 644
 645         u16 auto_corr_max_cck;
 646         u16 auto_corr_max_cck_mrc;
 647         u16 auto_corr_min_cck;
 648         u16 auto_corr_min_cck_mrc;
 649
 650         u16 barker_corr_th_min;
 651         u16 barker_corr_th_min_mrc;
 652         u16 nrg_th_cca;
 653 };
 654
 655
 656 #define KELVIN_TO_CELSIUS(x) ((x)-273)
 657 #define CELSIUS_TO_KELVIN(x) ((x)+273)
 658
 659
 660 /**
 661  * struct iwl_hw_params
 662  * @max_txq_num: Max # Tx queues supported
 663  * @dma_chnl_num: Number of Tx DMA/FIFO channels
 664  * @scd_bc_tbls_size: size of scheduler byte count tables
 665  * @tfd_size: TFD size
 666  * @tx/rx_chains_num: Number of TX/RX chains
 667  * @valid_tx/rx_ant: usable antennas
 668  * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
 669  * @max_rxq_log: Log-base-2 of max_rxq_size
 670  * @rx_page_order: Rx buffer page order
 671  * @rx_wrt_ptr_reg: FH{39}_RSCSR_CHNL0_WPTR
 672  * @max_stations:
 673  * @bcast_sta_id:
 674  * @ht40_channel: is 40MHz width possible in band 2.4
 675  * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ)
 676  * @sw_crypto: 0 for hw, 1 for sw
 677  * @max_xxx_size: for ucode uses
 678  * @ct_kill_threshold: temperature threshold
 679  * @calib_init_cfg: setup initial calibrations for the hw
 680  * @struct iwl_sensitivity_ranges: range of sensitivity values
 681  */
 682 struct iwl_hw_params {
 683         u8 max_txq_num;
 684         u8 dma_chnl_num;
 685         u16 scd_bc_tbls_size;
 686         u32 tfd_size;
 687         u8  tx_chains_num;
 688         u8  rx_chains_num;
 689         u8  valid_tx_ant;
 690         u8  valid_rx_ant;
 691         u16 max_rxq_size;
 692         u16 max_rxq_log;
 693         u32 rx_page_order;
 694         u32 rx_wrt_ptr_reg;
 695         u8  max_stations;
 696         u8  bcast_sta_id;
 697         u8  ht40_channel;
 698         u8  max_beacon_itrvl;   /* in 1024 ms */
 699         u32 max_inst_size;
 700         u32 max_data_size;
 701         u32 max_bsm_size;
 702         u32 ct_kill_threshold; /* value in hw-dependent units */
 703         u32 ct_kill_exit_threshold; /* value in hw-dependent units */
 704                                     /* for 1000, 6000 series and up */
 705         u32 calib_init_cfg;
 706         const struct iwl_sensitivity_ranges *sens;
 707 };
 708
 709
 710 /******************************************************************************
 711  *
 712  * Functions implemented in core module which are forward declared here
 713  * for use by iwl-[4-5].c
 714  *
 715  * NOTE:  The implementation of these functions are not hardware specific
 716  * which is why they are in the core module files.
 717  *
 718  * Naming convention --
 719  * iwl_         <-- Is part of iwlwifi
 720  * iwlXXXX_     <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
 721  * iwl4965_bg_      <-- Called from work queue context
 722  * iwl4965_mac_     <-- mac80211 callback
 723  *
 724  ****************************************************************************/
 725 extern void iwl_update_chain_flags(struct iwl_priv *priv);
 726 extern int iwl_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src);
 727 extern const u8 iwl_bcast_addr[ETH_ALEN];
 728 extern int iwl_rxq_stop(struct iwl_priv *priv);
 729 extern void iwl_txq_ctx_stop(struct iwl_priv *priv);
 730 extern int iwl_queue_space(const struct iwl_queue *q);
 731 static inline int iwl_queue_used(const struct iwl_queue *q, int i)
 732 {
 733         return q->write_ptr > q->read_ptr ?
 734                 (i >= q->read_ptr && i < q->write_ptr) :
 735                 !(i < q->read_ptr && i >= q->write_ptr);
 736 }
 737
 738
 739 static inline u8 get_cmd_index(struct iwl_queue *q, u32 index, int is_huge)
 740 {
 741         /*
 742          * This is for init calibration result and scan command which
 743          * required buffer > TFD_MAX_PAYLOAD_SIZE,
 744          * the big buffer at end of command array
 745          */
 746         if (is_huge)
 747                 return q->n_window;     /* must be power of 2 */
 748
 749         /* Otherwise, use normal size buffers */
 750         return index & (q->n_window - 1);
 751 }
 752
 753
 754 struct iwl_dma_ptr {
 755         dma_addr_t dma;
 756         void *addr;
 757         size_t size;
 758 };
 759
 760 #define IWL_OPERATION_MODE_AUTO     0
 761 #define IWL_OPERATION_MODE_HT_ONLY  1
 762 #define IWL_OPERATION_MODE_MIXED    2
 763 #define IWL_OPERATION_MODE_20MHZ    3
 764
 765 #define IWL_TX_CRC_SIZE 4
 766 #define IWL_TX_DELIMITER_SIZE 4
 767
 768 #define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
 769
 770 /* Sensitivity and chain noise calibration */
 771 #define INITIALIZATION_VALUE            0xFFFF
 772 #define IWL4965_CAL_NUM_BEACONS         20
 773 #define IWL_CAL_NUM_BEACONS             16
 774 #define MAXIMUM_ALLOWED_PATHLOSS        15
 775
 776 #define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
 777
 778 #define MAX_FA_OFDM  50
 779 #define MIN_FA_OFDM  5
 780 #define MAX_FA_CCK   50
 781 #define MIN_FA_CCK   5
 782
 783 #define AUTO_CORR_STEP_OFDM       1
 784
 785 #define AUTO_CORR_STEP_CCK     3
 786 #define AUTO_CORR_MAX_TH_CCK   160
 787
 788 #define NRG_DIFF               2
 789 #define NRG_STEP_CCK           2
 790 #define NRG_MARGIN             8
 791 #define MAX_NUMBER_CCK_NO_FA 100
 792
 793 #define AUTO_CORR_CCK_MIN_VAL_DEF    (125)
 794
 795 #define CHAIN_A             0
 796 #define CHAIN_B             1
 797 #define CHAIN_C             2
 798 #define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
 799 #define ALL_BAND_FILTER                 0xFF00
 800 #define IN_BAND_FILTER                  0xFF
 801 #define MIN_AVERAGE_NOISE_MAX_VALUE     0xFFFFFFFF
 802
 803 #define NRG_NUM_PREV_STAT_L     20
 804 #define NUM_RX_CHAINS           3
 805
 806 enum iwl4965_false_alarm_state {
 807         IWL_FA_TOO_MANY = 0,
 808         IWL_FA_TOO_FEW = 1,
 809         IWL_FA_GOOD_RANGE = 2,
 810 };
 811
 812 enum iwl4965_chain_noise_state {
 813         IWL_CHAIN_NOISE_ALIVE = 0,  /* must be 0 */
 814         IWL_CHAIN_NOISE_ACCUMULATE,
 815         IWL_CHAIN_NOISE_CALIBRATED,
 816         IWL_CHAIN_NOISE_DONE,
 817 };
 818
 819 enum iwl4965_calib_enabled_state {
 820         IWL_CALIB_DISABLED = 0,  /* must be 0 */
 821         IWL_CALIB_ENABLED = 1,
 822 };
 823
 824
 825 /*
 826  * enum iwl_calib
 827  * defines the order in which results of initial calibrations
 828  * should be sent to the runtime uCode
 829  */
 830 enum iwl_calib {
 831         IWL_CALIB_XTAL,
 832         IWL_CALIB_DC,
 833         IWL_CALIB_LO,
 834         IWL_CALIB_TX_IQ,
 835         IWL_CALIB_TX_IQ_PERD,
 836         IWL_CALIB_BASE_BAND,
 837         IWL_CALIB_MAX
 838 };
 839
 840 /* Opaque calibration results */
 841 struct iwl_calib_result {
 842         void *buf;
 843         size_t buf_len;
 844 };
 845
 846 enum ucode_type {
 847         UCODE_NONE = 0,
 848         UCODE_INIT,
 849         UCODE_RT
 850 };
 851
 852 /* Sensitivity calib data */
 853 struct iwl_sensitivity_data {
 854         u32 auto_corr_ofdm;
 855         u32 auto_corr_ofdm_mrc;
 856         u32 auto_corr_ofdm_x1;
 857         u32 auto_corr_ofdm_mrc_x1;
 858         u32 auto_corr_cck;
 859         u32 auto_corr_cck_mrc;
 860
 861         u32 last_bad_plcp_cnt_ofdm;
 862         u32 last_fa_cnt_ofdm;
 863         u32 last_bad_plcp_cnt_cck;
 864         u32 last_fa_cnt_cck;
 865
 866         u32 nrg_curr_state;
 867         u32 nrg_prev_state;
 868         u32 nrg_value[10];
 869         u8  nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
 870         u32 nrg_silence_ref;
 871         u32 nrg_energy_idx;
 872         u32 nrg_silence_idx;
 873         u32 nrg_th_cck;
 874         s32 nrg_auto_corr_silence_diff;
 875         u32 num_in_cck_no_fa;
 876         u32 nrg_th_ofdm;
 877
 878         u16 barker_corr_th_min;
 879         u16 barker_corr_th_min_mrc;
 880         u16 nrg_th_cca;
 881 };
 882
 883 /* Chain noise (differential Rx gain) calib data */
 884 struct iwl_chain_noise_data {
 885         u32 active_chains;
 886         u32 chain_noise_a;
 887         u32 chain_noise_b;
 888         u32 chain_noise_c;
 889         u32 chain_signal_a;
 890         u32 chain_signal_b;
 891         u32 chain_signal_c;
 892         u16 beacon_count;
 893         u8 disconn_array[NUM_RX_CHAINS];
 894         u8 delta_gain_code[NUM_RX_CHAINS];
 895         u8 radio_write;
 896         u8 state;
 897 };
 898
 899 #define EEPROM_SEM_TIMEOUT 10           /* milliseconds */
 900 #define EEPROM_SEM_RETRY_LIMIT 1000     /* number of attempts (not time) */
 901
 902 #define IWL_TRAFFIC_ENTRIES     (256)
 903 #define IWL_TRAFFIC_ENTRY_SIZE  (64)
 904
 905 enum {
 906         MEASUREMENT_READY = (1 << 0),
 907         MEASUREMENT_ACTIVE = (1 << 1),
 908 };
 909
 910 enum iwl_nvm_type {
 911         NVM_DEVICE_TYPE_EEPROM = 0,
 912         NVM_DEVICE_TYPE_OTP,
 913 };
 914
 915 /*
 916  * Two types of OTP memory access modes
 917  *   IWL_OTP_ACCESS_ABSOLUTE - absolute address mode,
 918  *                              based on physical memory addressing
 919  *   IWL_OTP_ACCESS_RELATIVE - relative address mode,
 920  *                             based on logical memory addressing
 921  */
 922 enum iwl_access_mode {
 923         IWL_OTP_ACCESS_ABSOLUTE,
 924         IWL_OTP_ACCESS_RELATIVE,
 925 };
 926
 927 /**
 928  * enum iwl_pa_type - Power Amplifier type
 929  * @IWL_PA_SYSTEM:  based on uCode configuration
 930  * @IWL_PA_HYBRID: use both Internal and external PA
 931  * @IWL_PA_INTERNAL: use Internal only
 932  */
 933 enum iwl_pa_type {
 934         IWL_PA_SYSTEM = 0,
 935         IWL_PA_HYBRID = 1,
 936         IWL_PA_INTERNAL = 2,
 937 };
 938
 939 /* interrupt statistics */
 940 struct isr_statistics {
 941         u32 hw;
 942         u32 sw;
 943         u32 sw_err;
 944         u32 sch;
 945         u32 alive;
 946         u32 rfkill;
 947         u32 ctkill;
 948         u32 wakeup;
 949         u32 rx;
 950         u32 rx_handlers[REPLY_MAX];
 951         u32 tx;
 952         u32 unhandled;
 953 };
 954
 955 #ifdef CONFIG_IWLWIFI_DEBUGFS
 956 /* management statistics */
 957 enum iwl_mgmt_stats {
 958         MANAGEMENT_ASSOC_REQ = 0,
 959         MANAGEMENT_ASSOC_RESP,
 960         MANAGEMENT_REASSOC_REQ,
 961         MANAGEMENT_REASSOC_RESP,
 962         MANAGEMENT_PROBE_REQ,
 963         MANAGEMENT_PROBE_RESP,
 964         MANAGEMENT_BEACON,
 965         MANAGEMENT_ATIM,
 966         MANAGEMENT_DISASSOC,
 967         MANAGEMENT_AUTH,
 968         MANAGEMENT_DEAUTH,
 969         MANAGEMENT_ACTION,
 970         MANAGEMENT_MAX,
 971 };
 972 /* control statistics */
 973 enum iwl_ctrl_stats {
 974         CONTROL_BACK_REQ =  0,
 975         CONTROL_BACK,
 976         CONTROL_PSPOLL,
 977         CONTROL_RTS,
 978         CONTROL_CTS,
 979         CONTROL_ACK,
 980         CONTROL_CFEND,
 981         CONTROL_CFENDACK,
 982         CONTROL_MAX,
 983 };
 984
 985 struct traffic_stats {
 986         u32 mgmt[MANAGEMENT_MAX];
 987         u32 ctrl[CONTROL_MAX];
 988         u32 data_cnt;
 989         u64 data_bytes;
 990 };
 991 #else
 992 struct traffic_stats {
 993         u64 data_bytes;
 994 };
 995 #endif
 996
 997 /*
 998  * iwl_switch_rxon: "channel switch" structure
 999  *
1000  * @ switch_in_progress: channel switch in progress
1001  * @ channel: new channel
1002  */
1003 struct iwl_switch_rxon {
1004         bool switch_in_progress;
1005         __le16 channel;
1006 };
1007
1008 struct iwl_priv {
1009
1010         /* ieee device used by generic ieee processing code */
1011         struct ieee80211_hw *hw;
1012         struct ieee80211_channel *ieee_channels;
1013         struct ieee80211_rate *ieee_rates;
1014         struct iwl_cfg *cfg;
1015
1016         /* temporary frame storage list */
1017         struct list_head free_frames;
1018         int frames_count;
1019
1020         enum ieee80211_band band;
1021         int alloc_rxb_page;
1022
1023         void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
1024                                        struct iwl_rx_mem_buffer *rxb);
1025
1026         struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
1027
1028 #if defined(CONFIG_IWLWIFI_SPECTRUM_MEASUREMENT) || defined(CONFIG_IWL3945_SPECTRUM_MEASUREMENT)
1029         /* spectrum measurement report caching */
1030         struct iwl_spectrum_notification measure_report;
1031         u8 measurement_status;
1032 #endif
1033         /* ucode beacon time */
1034         u32 ucode_beacon_time;
1035
1036         /* we allocate array of iwl4965_channel_info for NIC's valid channels.
1037          *    Access via channel # using indirect index array */
1038         struct iwl_channel_info *channel_info;  /* channel info array */
1039         u8 channel_count;       /* # of channels */
1040
1041         /* each calibration channel group in the EEPROM has a derived
1042          * clip setting for each rate. 3945 only.*/
1043         const struct iwl3945_clip_group clip39_groups[5];
1044
1045         /* thermal calibration */
1046         s32 temperature;        /* degrees Kelvin */
1047         s32 last_temperature;
1048
1049         /* init calibration results */
1050         struct iwl_calib_result calib_results[IWL_CALIB_MAX];
1051
1052         /* Scan related variables */
1053         unsigned long last_scan_jiffies;
1054         unsigned long next_scan_jiffies;
1055         unsigned long scan_start;
1056         unsigned long scan_pass_start;
1057         unsigned long scan_start_tsf;
1058         void *scan;
1059         int scan_bands;
1060         struct cfg80211_scan_request *scan_request;
1061         u8 scan_tx_ant[IEEE80211_NUM_BANDS];
1062         u8 mgmt_tx_ant;
1063
1064         /* spinlock */
1065         spinlock_t lock;        /* protect general shared data */
1066         spinlock_t hcmd_lock;   /* protect hcmd */
1067         spinlock_t reg_lock;    /* protect hw register access */
1068         struct mutex mutex;
1069
1070         /* basic pci-network driver stuff */
1071         struct pci_dev *pci_dev;
1072
1073         /* pci hardware address support */
1074         void __iomem *hw_base;
1075         u32  hw_rev;
1076         u32  hw_wa_rev;
1077         u8   rev_id;
1078
1079         /* uCode images, save to reload in case of failure */
1080         u32 ucode_ver;                  /* version of ucode, copy of
1081                                            iwl_ucode.ver */
1082         struct fw_desc ucode_code;      /* runtime inst */
1083         struct fw_desc ucode_data;      /* runtime data original */
1084         struct fw_desc ucode_data_backup;       /* runtime data save/restore */
1085         struct fw_desc ucode_init;      /* initialization inst */
1086         struct fw_desc ucode_init_data; /* initialization data */
1087         struct fw_desc ucode_boot;      /* bootstrap inst */
1088         enum ucode_type ucode_type;
1089         u8 ucode_write_complete;        /* the image write is complete */
1090
1091
1092         struct iwl_rxon_time_cmd rxon_timing;
1093
1094         /* We declare this const so it can only be
1095          * changed via explicit cast within the
1096          * routines that actually update the physical
1097          * hardware */
1098         const struct iwl_rxon_cmd active_rxon;
1099         struct iwl_rxon_cmd staging_rxon;
1100
1101         struct iwl_switch_rxon switch_rxon;
1102
1103         /* 1st responses from initialize and runtime uCode images.
1104          * 4965's initialize alive response contains some calibration data. */
1105         struct iwl_init_alive_resp card_alive_init;
1106         struct iwl_alive_resp card_alive;
1107
1108         unsigned long last_blink_time;
1109         u8 last_blink_rate;
1110         u8 allow_blinking;
1111         u64 led_tpt;
1112
1113         u16 active_rate;
1114         u16 active_rate_basic;
1115
1116         u8 assoc_station_added;
1117         u8 start_calib;
1118         struct iwl_sensitivity_data sensitivity_data;
1119         struct iwl_chain_noise_data chain_noise_data;
1120         __le16 sensitivity_tbl[HD_TABLE_SIZE];
1121
1122         struct iwl_ht_config current_ht_config;
1123         u8 last_phy_res[100];
1124
1125         /* Rate scaling data */
1126         u8 retry_rate;
1127
1128         wait_queue_head_t wait_command_queue;
1129
1130         int activity_timer_active;
1131
1132         /* Rx and Tx DMA processing queues */
1133         struct iwl_rx_queue rxq;
1134         struct iwl_tx_queue *txq;
1135         unsigned long txq_ctx_active_msk;
1136         struct iwl_dma_ptr  kw; /* keep warm address */
1137         struct iwl_dma_ptr  scd_bc_tbls;
1138
1139         u32 scd_base_addr;      /* scheduler sram base address */
1140
1141         unsigned long status;
1142
1143         int last_rx_rssi;       /* From Rx packet statistics */
1144         int last_rx_noise;      /* From beacon statistics */
1145
1146         /* counts mgmt, ctl, and data packets */
1147         struct traffic_stats tx_stats;
1148         struct traffic_stats rx_stats;
1149
1150         /* counts interrupts */
1151         struct isr_statistics isr_stats;
1152
1153         struct iwl_power_mgr power_data;
1154         struct iwl_tt_mgmt thermal_throttle;
1155
1156         struct iwl_notif_statistics statistics;
1157 #ifdef CONFIG_IWLWIFI_DEBUG
1158         struct iwl_notif_statistics accum_statistics;
1159 #endif
1160
1161         /* context information */
1162         u16 rates_mask;
1163
1164         u8 bssid[ETH_ALEN];
1165         u16 rts_threshold;
1166         u8 mac_addr[ETH_ALEN];
1167
1168         /*station table variables */
1169         spinlock_t sta_lock;
1170         int num_stations;
1171         struct iwl_station_entry stations[IWL_STATION_COUNT];
1172         struct iwl_wep_key wep_keys[WEP_KEYS_MAX];
1173         u8 default_wep_key;
1174         u8 key_mapping_key;
1175         unsigned long ucode_key_table;
1176
1177         /* queue refcounts */
1178 #define IWL_MAX_HW_QUEUES       32
1179         unsigned long queue_stopped[BITS_TO_LONGS(IWL_MAX_HW_QUEUES)];
1180         /* for each AC */
1181         atomic_t queue_stop_count[4];
1182
1183         /* Indication if ieee80211_ops->open has been called */
1184         u8 is_open;
1185
1186         u8 mac80211_registered;
1187
1188         /* Rx'd packet timing information */
1189         u32 last_beacon_time;
1190         u64 last_tsf;
1191
1192         /* eeprom */
1193         u8 *eeprom;
1194         int    nvm_device_type;
1195         struct iwl_eeprom_calib_info *calib_info;
1196
1197         enum nl80211_iftype iw_mode;
1198
1199         struct sk_buff *ibss_beacon;
1200
1201         /* Last Rx'd beacon timestamp */
1202         u64 timestamp;
1203         u16 beacon_int;
1204         struct ieee80211_vif *vif;
1205
1206         /*Added for 3945 */
1207         void *shared_virt;
1208         dma_addr_t shared_phys;
1209         /*End*/
1210         struct iwl_hw_params hw_params;
1211
1212         /* INT ICT Table */
1213         __le32 *ict_tbl;
1214         dma_addr_t ict_tbl_dma;
1215         dma_addr_t aligned_ict_tbl_dma;
1216         int ict_index;
1217         void *ict_tbl_vir;
1218         u32 inta;
1219         bool use_ict;
1220
1221         u32 inta_mask;
1222         /* Current association information needed to configure the
1223          * hardware */
1224         u16 assoc_id;
1225         u16 assoc_capability;
1226
1227         struct iwl_qos_info qos_data;
1228
1229         struct workqueue_struct *workqueue;
1230
1231         struct work_struct up;
1232         struct work_struct restart;
1233         struct work_struct calibrated_work;
1234         struct work_struct scan_completed;
1235         struct work_struct rx_replenish;
1236         struct work_struct abort_scan;
1237         struct work_struct update_link_led;
1238         struct work_struct auth_work;
1239         struct work_struct report_work;
1240         struct work_struct request_scan;
1241         struct work_struct beacon_update;
1242         struct work_struct tt_work;
1243         struct work_struct ct_enter;
1244         struct work_struct ct_exit;
1245
1246         struct tasklet_struct irq_tasklet;
1247
1248         struct delayed_work init_alive_start;
1249         struct delayed_work alive_start;
1250         struct delayed_work scan_check;
1251
1252         /*For 3945 only*/
1253         struct delayed_work thermal_periodic;
1254         struct delayed_work rfkill_poll;
1255
1256         /* TX Power */
1257         s8 tx_power_user_lmt;
1258         s8 tx_power_device_lmt;
1259
1260
1261 #ifdef CONFIG_IWLWIFI_DEBUG
1262         /* debugging info */
1263         u32 debug_level; /* per device debugging will override global
1264                             iwl_debug_level if set */
1265         u32 framecnt_to_us;
1266         atomic_t restrict_refcnt;
1267         bool disable_ht40;
1268 #ifdef CONFIG_IWLWIFI_DEBUGFS
1269         /* debugfs */
1270         u16 tx_traffic_idx;
1271         u16 rx_traffic_idx;
1272         u8 *tx_traffic;
1273         u8 *rx_traffic;
1274         struct iwl_debugfs *dbgfs;
1275 #endif /* CONFIG_IWLWIFI_DEBUGFS */
1276 #endif /* CONFIG_IWLWIFI_DEBUG */
1277
1278         struct work_struct txpower_work;
1279         u32 disable_sens_cal;
1280         u32 disable_chain_noise_cal;
1281         u32 disable_tx_power_cal;
1282         struct work_struct run_time_calib_work;
1283         struct timer_list statistics_periodic;
1284         bool hw_ready;
1285         /*For 3945*/
1286 #define IWL_DEFAULT_TX_POWER 0x0F
1287
1288         struct iwl3945_notif_statistics statistics_39;
1289
1290         u32 sta_supp_rates;
1291 }; /*iwl_priv */
1292
1293 static inline void iwl_txq_ctx_activate(struct iwl_priv *priv, int txq_id)
1294 {
1295         set_bit(txq_id, &priv->txq_ctx_active_msk);
1296 }
1297
1298 static inline void iwl_txq_ctx_deactivate(struct iwl_priv *priv, int txq_id)
1299 {
1300         clear_bit(txq_id, &priv->txq_ctx_active_msk);
1301 }
1302
1303 #ifdef CONFIG_IWLWIFI_DEBUG
1304 const char *iwl_get_tx_fail_reason(u32 status);
1305 /*
1306  * iwl_get_debug_level: Return active debug level for device
1307  *
1308  * Using sysfs it is possible to set per device debug level. This debug
1309  * level will be used if set, otherwise the global debug level which can be
1310  * set via module parameter is used.
1311  */
1312 static inline u32 iwl_get_debug_level(struct iwl_priv *priv)
1313 {
1314         if (priv->debug_level)
1315                 return priv->debug_level;
1316         else
1317                 return iwl_debug_level;
1318 }
1319 #else
1320 static inline const char *iwl_get_tx_fail_reason(u32 status) { return ""; }
1321
1322 static inline u32 iwl_get_debug_level(struct iwl_priv *priv)
1323 {
1324         return iwl_debug_level;
1325 }
1326 #endif
1327
1328
1329 static inline struct ieee80211_hdr *iwl_tx_queue_get_hdr(struct iwl_priv *priv,
1330                                                          int txq_id, int idx)
1331 {
1332         if (priv->txq[txq_id].txb[idx].skb[0])
1333                 return (struct ieee80211_hdr *)priv->txq[txq_id].
1334                                 txb[idx].skb[0]->data;
1335         return NULL;
1336 }
1337
1338
1339 static inline int iwl_is_associated(struct iwl_priv *priv)
1340 {
1341         return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
1342 }
1343
1344 static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
1345 {
1346         if (ch_info == NULL)
1347                 return 0;
1348         return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
1349 }
1350
1351 static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
1352 {
1353         return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
1354 }
1355
1356 static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
1357 {
1358         return ch_info->band == IEEE80211_BAND_5GHZ;
1359 }
1360
1361 static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
1362 {
1363         return ch_info->band == IEEE80211_BAND_2GHZ;
1364 }
1365
1366 static inline int is_channel_passive(const struct iwl_channel_info *ch)
1367 {
1368         return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1369 }
1370
1371 static inline int is_channel_ibss(const struct iwl_channel_info *ch)
1372 {
1373         return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1374 }
1375
1376 #endif                          /* __iwl_dev_h__ */