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_bgn_cfg;
  56 extern struct iwl_cfg iwl5100_abg_cfg;
  57 extern struct iwl_cfg iwl5150_agn_cfg;
  58 extern struct iwl_cfg iwl5150_abg_cfg;
  59 extern struct iwl_cfg iwl6000i_2agn_cfg;
  60 extern struct iwl_cfg iwl6000i_2abg_cfg;
  61 extern struct iwl_cfg iwl6000i_2bg_cfg;
  62 extern struct iwl_cfg iwl6000_3agn_cfg;
  63 extern struct iwl_cfg iwl6050_2agn_cfg;
  64 extern struct iwl_cfg iwl6050_2abg_cfg;
  65 extern struct iwl_cfg iwl1000_bgn_cfg;
  66 extern struct iwl_cfg iwl1000_bg_cfg;
  67
  68 struct iwl_tx_queue;
  69
  70 /* shared structures from iwl-5000.c */
  71 extern struct iwl_mod_params iwl50_mod_params;
  72 extern struct iwl_ucode_ops iwl5000_ucode;
  73 extern struct iwl_lib_ops iwl5000_lib;
  74 extern struct iwl_hcmd_ops iwl5000_hcmd;
  75 extern struct iwl_hcmd_utils_ops iwl5000_hcmd_utils;
  76
  77 /* shared functions from iwl-5000.c */
  78 extern u16 iwl5000_get_hcmd_size(u8 cmd_id, u16 len);
  79 extern u16 iwl5000_build_addsta_hcmd(const struct iwl_addsta_cmd *cmd,
  80                                      u8 *data);
  81 extern void iwl5000_rts_tx_cmd_flag(struct ieee80211_tx_info *info,
  82                                     __le32 *tx_flags);
  83 extern int iwl5000_calc_rssi(struct iwl_priv *priv,
  84                              struct iwl_rx_phy_res *rx_resp);
  85 extern void iwl5000_nic_config(struct iwl_priv *priv);
  86 extern u16 iwl5000_eeprom_calib_version(struct iwl_priv *priv);
  87 extern const u8 *iwl5000_eeprom_query_addr(const struct iwl_priv *priv,
  88                                     size_t offset);
  89 extern void iwl5000_txq_update_byte_cnt_tbl(struct iwl_priv *priv,
  90                                             struct iwl_tx_queue *txq,
  91                                             u16 byte_cnt);
  92 extern void iwl5000_txq_inval_byte_cnt_tbl(struct iwl_priv *priv,
  93                                     struct iwl_tx_queue *txq);
  94 extern int iwl5000_load_ucode(struct iwl_priv *priv);
  95 extern void iwl5000_init_alive_start(struct iwl_priv *priv);
  96 extern int iwl5000_alive_notify(struct iwl_priv *priv);
  97 extern int iwl5000_hw_set_hw_params(struct iwl_priv *priv);
  98 extern int iwl5000_txq_agg_enable(struct iwl_priv *priv, int txq_id,
  99                            int tx_fifo, int sta_id, int tid, u16 ssn_idx);
 100 extern int iwl5000_txq_agg_disable(struct iwl_priv *priv, u16 txq_id,
 101                             u16 ssn_idx, u8 tx_fifo);
 102 extern void iwl5000_txq_set_sched(struct iwl_priv *priv, u32 mask);
 103 extern void iwl5000_setup_deferred_work(struct iwl_priv *priv);
 104 extern void iwl5000_rx_handler_setup(struct iwl_priv *priv);
 105 extern int iwl5000_hw_valid_rtc_data_addr(u32 addr);
 106 extern int iwl5000_send_tx_power(struct iwl_priv *priv);
 107 extern void iwl5000_temperature(struct iwl_priv *priv);
 108
 109 /* CT-KILL constants */
 110 #define CT_KILL_THRESHOLD_LEGACY   110 /* in Celsius */
 111 #define CT_KILL_THRESHOLD          114 /* in Celsius */
 112 #define CT_KILL_EXIT_THRESHOLD     95  /* in Celsius */
 113
 114 /* Default noise level to report when noise measurement is not available.
 115  *   This may be because we're:
 116  *   1)  Not associated (4965, no beacon statistics being sent to driver)
 117  *   2)  Scanning (noise measurement does not apply to associated channel)
 118  *   3)  Receiving CCK (3945 delivers noise info only for OFDM frames)
 119  * Use default noise value of -127 ... this is below the range of measurable
 120  *   Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
 121  *   Also, -127 works better than 0 when averaging frames with/without
 122  *   noise info (e.g. averaging might be done in app); measured dBm values are
 123  *   always negative ... using a negative value as the default keeps all
 124  *   averages within an s8's (used in some apps) range of negative values. */
 125 #define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
 126
 127 /*
 128  * RTS threshold here is total size [2347] minus 4 FCS bytes
 129  * Per spec:
 130  *   a value of 0 means RTS on all data/management packets
 131  *   a value > max MSDU size means no RTS
 132  * else RTS for data/management frames where MPDU is larger
 133  *   than RTS value.
 134  */
 135 #define DEFAULT_RTS_THRESHOLD     2347U
 136 #define MIN_RTS_THRESHOLD         0U
 137 #define MAX_RTS_THRESHOLD         2347U
 138 #define MAX_MSDU_SIZE             2304U
 139 #define MAX_MPDU_SIZE             2346U
 140 #define DEFAULT_BEACON_INTERVAL   100U
 141 #define DEFAULT_SHORT_RETRY_LIMIT 7U
 142 #define DEFAULT_LONG_RETRY_LIMIT  4U
 143
 144 struct iwl_rx_mem_buffer {
 145         dma_addr_t page_dma;
 146         struct page *page;
 147         struct list_head list;
 148 };
 149
 150 #define rxb_addr(r) page_address(r->page)
 151
 152 /* defined below */
 153 struct iwl_device_cmd;
 154
 155 struct iwl_cmd_meta {
 156         /* only for SYNC commands, iff the reply skb is wanted */
 157         struct iwl_host_cmd *source;
 158         /*
 159          * only for ASYNC commands
 160          * (which is somewhat stupid -- look at iwl-sta.c for instance
 161          * which duplicates a bunch of code because the callback isn't
 162          * invoked for SYNC commands, if it were and its result passed
 163          * through it would be simpler...)
 164          */
 165         void (*callback)(struct iwl_priv *priv,
 166                          struct iwl_device_cmd *cmd,
 167                          struct iwl_rx_packet *pkt);
 168
 169         /* The CMD_SIZE_HUGE flag bit indicates that the command
 170          * structure is stored at the end of the shared queue memory. */
 171         u32 flags;
 172
 173         DECLARE_PCI_UNMAP_ADDR(mapping)
 174         DECLARE_PCI_UNMAP_LEN(len)
 175 };
 176
 177 /*
 178  * Generic queue structure
 179  *
 180  * Contains common data for Rx and Tx queues
 181  */
 182 struct iwl_queue {
 183         int n_bd;              /* number of BDs in this queue */
 184         int write_ptr;       /* 1-st empty entry (index) host_w*/
 185         int read_ptr;         /* last used entry (index) host_r*/
 186         dma_addr_t dma_addr;   /* physical addr for BD's */
 187         int n_window;          /* safe queue window */
 188         u32 id;
 189         int low_mark;          /* low watermark, resume queue if free
 190                                 * space more than this */
 191         int high_mark;         /* high watermark, stop queue if free
 192                                 * space less than this */
 193 } __attribute__ ((packed));
 194
 195 /* One for each TFD */
 196 struct iwl_tx_info {
 197         struct sk_buff *skb[IWL_NUM_OF_TBS - 1];
 198 };
 199
 200 /**
 201  * struct iwl_tx_queue - Tx Queue for DMA
 202  * @q: generic Rx/Tx queue descriptor
 203  * @bd: base of circular buffer of TFDs
 204  * @cmd: array of command/TX buffer pointers
 205  * @meta: array of meta data for each command/tx buffer
 206  * @dma_addr_cmd: physical address of cmd/tx buffer array
 207  * @txb: array of per-TFD driver data
 208  * @need_update: indicates need to update read/write index
 209  * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
 210  *
 211  * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
 212  * descriptors) and required locking structures.
 213  */
 214 #define TFD_TX_CMD_SLOTS 256
 215 #define TFD_CMD_SLOTS 32
 216
 217 struct iwl_tx_queue {
 218         struct iwl_queue q;
 219         void *tfds;
 220         struct iwl_device_cmd **cmd;
 221         struct iwl_cmd_meta *meta;
 222         struct iwl_tx_info *txb;
 223         u8 need_update;
 224         u8 sched_retry;
 225         u8 active;
 226         u8 swq_id;
 227 };
 228
 229 #define IWL_NUM_SCAN_RATES         (2)
 230
 231 struct iwl4965_channel_tgd_info {
 232         u8 type;
 233         s8 max_power;
 234 };
 235
 236 struct iwl4965_channel_tgh_info {
 237         s64 last_radar_time;
 238 };
 239
 240 #define IWL4965_MAX_RATE (33)
 241
 242 struct iwl3945_clip_group {
 243         /* maximum power level to prevent clipping for each rate, derived by
 244          *   us from this band's saturation power in EEPROM */
 245         const s8 clip_powers[IWL_MAX_RATES];
 246 };
 247
 248 /* current Tx power values to use, one for each rate for each channel.
 249  * requested power is limited by:
 250  * -- regulatory EEPROM limits for this channel
 251  * -- hardware capabilities (clip-powers)
 252  * -- spectrum management
 253  * -- user preference (e.g. iwconfig)
 254  * when requested power is set, base power index must also be set. */
 255 struct iwl3945_channel_power_info {
 256         struct iwl3945_tx_power tpc;    /* actual radio and DSP gain settings */
 257         s8 power_table_index;   /* actual (compenst'd) index into gain table */
 258         s8 base_power_index;    /* gain index for power at factory temp. */
 259         s8 requested_power;     /* power (dBm) requested for this chnl/rate */
 260 };
 261
 262 /* current scan Tx power values to use, one for each scan rate for each
 263  * channel. */
 264 struct iwl3945_scan_power_info {
 265         struct iwl3945_tx_power tpc;    /* actual radio and DSP gain settings */
 266         s8 power_table_index;   /* actual (compenst'd) index into gain table */
 267         s8 requested_power;     /* scan pwr (dBm) requested for chnl/rate */
 268 };
 269
 270 /*
 271  * One for each channel, holds all channel setup data
 272  * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
 273  *     with one another!
 274  */
 275 struct iwl_channel_info {
 276         struct iwl4965_channel_tgd_info tgd;
 277         struct iwl4965_channel_tgh_info tgh;
 278         struct iwl_eeprom_channel eeprom;       /* EEPROM regulatory limit */
 279         struct iwl_eeprom_channel ht40_eeprom;  /* EEPROM regulatory limit for
 280                                                  * HT40 channel */
 281
 282         u8 channel;       /* channel number */
 283         u8 flags;         /* flags copied from EEPROM */
 284         s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
 285         s8 curr_txpow;    /* (dBm) regulatory/spectrum/user (not h/w) limit */
 286         s8 min_power;     /* always 0 */
 287         s8 scan_power;    /* (dBm) regul. eeprom, direct scans, any rate */
 288
 289         u8 group_index;   /* 0-4, maps channel to group1/2/3/4/5 */
 290         u8 band_index;    /* 0-4, maps channel to band1/2/3/4/5 */
 291         enum ieee80211_band band;
 292
 293         /* HT40 channel info */
 294         s8 ht40_max_power_avg;  /* (dBm) regul. eeprom, normal Tx, any rate */
 295         u8 ht40_flags;          /* flags copied from EEPROM */
 296         u8 ht40_extension_channel; /* HT_IE_EXT_CHANNEL_* */
 297
 298         /* Radio/DSP gain settings for each "normal" data Tx rate.
 299          * These include, in addition to RF and DSP gain, a few fields for
 300          *   remembering/modifying gain settings (indexes). */
 301         struct iwl3945_channel_power_info power_info[IWL4965_MAX_RATE];
 302
 303         /* Radio/DSP gain settings for each scan rate, for directed scans. */
 304         struct iwl3945_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES];
 305 };
 306
 307 #define IWL_TX_FIFO_AC0 0
 308 #define IWL_TX_FIFO_AC1 1
 309 #define IWL_TX_FIFO_AC2 2
 310 #define IWL_TX_FIFO_AC3 3
 311 #define IWL_TX_FIFO_HCCA_1      5
 312 #define IWL_TX_FIFO_HCCA_2      6
 313 #define IWL_TX_FIFO_NONE        7
 314
 315 /* Minimum number of queues. MAX_NUM is defined in hw specific files.
 316  * Set the minimum to accommodate the 4 standard TX queues, 1 command
 317  * queue, 2 (unused) HCCA queues, and 4 HT queues (one for each AC) */
 318 #define IWL_MIN_NUM_QUEUES      10
 319
 320 /*
 321  * Queue #4 is the command queue for 3945/4965/5x00/1000/6x00,
 322  * the driver maps it into the appropriate device FIFO for the
 323  * uCode.
 324  */
 325 #define IWL_CMD_QUEUE_NUM       4
 326
 327 /* Power management (not Tx power) structures */
 328
 329 enum iwl_pwr_src {
 330         IWL_PWR_SRC_VMAIN,
 331         IWL_PWR_SRC_VAUX,
 332 };
 333
 334 #define IEEE80211_DATA_LEN              2304
 335 #define IEEE80211_4ADDR_LEN             30
 336 #define IEEE80211_HLEN                  (IEEE80211_4ADDR_LEN)
 337 #define IEEE80211_FRAME_LEN             (IEEE80211_DATA_LEN + IEEE80211_HLEN)
 338
 339 struct iwl_frame {
 340         union {
 341                 struct ieee80211_hdr frame;
 342                 struct iwl_tx_beacon_cmd beacon;
 343                 u8 raw[IEEE80211_FRAME_LEN];
 344                 u8 cmd[360];
 345         } u;
 346         struct list_head list;
 347 };
 348
 349 #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
 350 #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
 351 #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
 352
 353 enum {
 354         CMD_SYNC = 0,
 355         CMD_SIZE_NORMAL = 0,
 356         CMD_NO_SKB = 0,
 357         CMD_SIZE_HUGE = (1 << 0),
 358         CMD_ASYNC = (1 << 1),
 359         CMD_WANT_SKB = (1 << 2),
 360 };
 361
 362 #define DEF_CMD_PAYLOAD_SIZE 320
 363
 364 /*
 365  * IWL_LINK_HDR_MAX should include ieee80211_hdr, radiotap header,
 366  * SNAP header and alignment. It should also be big enough for 802.11
 367  * control frames.
 368  */
 369 #define IWL_LINK_HDR_MAX 64
 370
 371 /**
 372  * struct iwl_device_cmd
 373  *
 374  * For allocation of the command and tx queues, this establishes the overall
 375  * size of the largest command we send to uCode, except for a scan command
 376  * (which is relatively huge; space is allocated separately).
 377  */
 378 struct iwl_device_cmd {
 379         struct iwl_cmd_header hdr;      /* uCode API */
 380         union {
 381                 u32 flags;
 382                 u8 val8;
 383                 u16 val16;
 384                 u32 val32;
 385                 struct iwl_tx_cmd tx;
 386                 struct iwl6000_channel_switch_cmd chswitch;
 387                 u8 payload[DEF_CMD_PAYLOAD_SIZE];
 388         } __attribute__ ((packed)) cmd;
 389 } __attribute__ ((packed));
 390
 391 #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_device_cmd))
 392
 393
 394 struct iwl_host_cmd {
 395         const void *data;
 396         unsigned long reply_page;
 397         void (*callback)(struct iwl_priv *priv,
 398                          struct iwl_device_cmd *cmd,
 399                          struct iwl_rx_packet *pkt);
 400         u32 flags;
 401         u16 len;
 402         u8 id;
 403 };
 404
 405 #define SUP_RATE_11A_MAX_NUM_CHANNELS  8
 406 #define SUP_RATE_11B_MAX_NUM_CHANNELS  4
 407 #define SUP_RATE_11G_MAX_NUM_CHANNELS  12
 408
 409 /**
 410  * struct iwl_rx_queue - Rx queue
 411  * @bd: driver's pointer to buffer of receive buffer descriptors (rbd)
 412  * @dma_addr: bus address of buffer of receive buffer descriptors (rbd)
 413  * @read: Shared index to newest available Rx buffer
 414  * @write: Shared index to oldest written Rx packet
 415  * @free_count: Number of pre-allocated buffers in rx_free
 416  * @rx_free: list of free SKBs for use
 417  * @rx_used: List of Rx buffers with no SKB
 418  * @need_update: flag to indicate we need to update read/write index
 419  * @rb_stts: driver's pointer to receive buffer status
 420  * @rb_stts_dma: bus address of receive buffer status
 421  *
 422  * NOTE:  rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers
 423  */
 424 struct iwl_rx_queue {
 425         __le32 *bd;
 426         dma_addr_t dma_addr;
 427         struct iwl_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
 428         struct iwl_rx_mem_buffer *queue[RX_QUEUE_SIZE];
 429         u32 read;
 430         u32 write;
 431         u32 free_count;
 432         u32 write_actual;
 433         struct list_head rx_free;
 434         struct list_head rx_used;
 435         int need_update;
 436         struct iwl_rb_status *rb_stts;
 437         dma_addr_t rb_stts_dma;
 438         spinlock_t lock;
 439 };
 440
 441 #define IWL_SUPPORTED_RATES_IE_LEN         8
 442
 443 #define MAX_TID_COUNT        9
 444
 445 #define IWL_INVALID_RATE     0xFF
 446 #define IWL_INVALID_VALUE    -1
 447
 448 /**
 449  * struct iwl_ht_agg -- aggregation status while waiting for block-ack
 450  * @txq_id: Tx queue used for Tx attempt
 451  * @frame_count: # frames attempted by Tx command
 452  * @wait_for_ba: Expect block-ack before next Tx reply
 453  * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
 454  * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
 455  * @bitmap1: High order, one bit for each frame pending ACK in Tx window
 456  * @rate_n_flags: Rate at which Tx was attempted
 457  *
 458  * If REPLY_TX indicates that aggregation was attempted, driver must wait
 459  * for block ack (REPLY_COMPRESSED_BA).  This struct stores tx reply info
 460  * until block ack arrives.
 461  */
 462 struct iwl_ht_agg {
 463         u16 txq_id;
 464         u16 frame_count;
 465         u16 wait_for_ba;
 466         u16 start_idx;
 467         u64 bitmap;
 468         u32 rate_n_flags;
 469 #define IWL_AGG_OFF 0
 470 #define IWL_AGG_ON 1
 471 #define IWL_EMPTYING_HW_QUEUE_ADDBA 2
 472 #define IWL_EMPTYING_HW_QUEUE_DELBA 3
 473         u8 state;
 474 };
 475
 476
 477 struct iwl_tid_data {
 478         u16 seq_number;
 479         u16 tfds_in_queue;
 480         struct iwl_ht_agg agg;
 481 };
 482
 483 struct iwl_hw_key {
 484         enum ieee80211_key_alg alg;
 485         int keylen;
 486         u8 keyidx;
 487         u8 key[32];
 488 };
 489
 490 union iwl_ht_rate_supp {
 491         u16 rates;
 492         struct {
 493                 u8 siso_rate;
 494                 u8 mimo_rate;
 495         };
 496 };
 497
 498 #define CFG_HT_RX_AMPDU_FACTOR_DEF  (0x3)
 499
 500 /*
 501  * Maximal MPDU density for TX aggregation
 502  * 4 - 2us density
 503  * 5 - 4us density
 504  * 6 - 8us density
 505  * 7 - 16us density
 506  */
 507 #define CFG_HT_MPDU_DENSITY_4USEC   (0x5)
 508 #define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_4USEC
 509
 510 struct iwl_ht_config {
 511         /* self configuration data */
 512         bool is_ht;
 513         bool is_40mhz;
 514         bool single_chain_sufficient;
 515         enum ieee80211_smps_mode smps; /* current smps mode */
 516         /* BSS related data */
 517         u8 extension_chan_offset;
 518         u8 ht_protection;
 519         u8 non_GF_STA_present;
 520 };
 521
 522 union iwl_qos_capabity {
 523         struct {
 524                 u8 edca_count:4;        /* bit 0-3 */
 525                 u8 q_ack:1;             /* bit 4 */
 526                 u8 queue_request:1;     /* bit 5 */
 527                 u8 txop_request:1;      /* bit 6 */
 528                 u8 reserved:1;          /* bit 7 */
 529         } q_AP;
 530         struct {
 531                 u8 acvo_APSD:1;         /* bit 0 */
 532                 u8 acvi_APSD:1;         /* bit 1 */
 533                 u8 ac_bk_APSD:1;        /* bit 2 */
 534                 u8 ac_be_APSD:1;        /* bit 3 */
 535                 u8 q_ack:1;             /* bit 4 */
 536                 u8 max_len:2;           /* bit 5-6 */
 537                 u8 more_data_ack:1;     /* bit 7 */
 538         } q_STA;
 539         u8 val;
 540 };
 541
 542 /* QoS structures */
 543 struct iwl_qos_info {
 544         int qos_active;
 545         union iwl_qos_capabity qos_cap;
 546         struct iwl_qosparam_cmd def_qos_parm;
 547 };
 548
 549 struct iwl_station_entry {
 550         struct iwl_addsta_cmd sta;
 551         struct iwl_tid_data tid[MAX_TID_COUNT];
 552         u8 used;
 553         struct iwl_hw_key keyinfo;
 554 };
 555
 556 /*
 557  * iwl_station_priv: Driver's private station information
 558  *
 559  * When mac80211 creates a station it reserves some space (hw->sta_data_size)
 560  * in the structure for use by driver. This structure is places in that
 561  * space.
 562  */
 563 struct iwl_station_priv {
 564         struct iwl_lq_sta lq_sta;
 565         atomic_t pending_frames;
 566         bool client;
 567         bool asleep;
 568 };
 569
 570 /* one for each uCode image (inst/data, boot/init/runtime) */
 571 struct fw_desc {
 572         void *v_addr;           /* access by driver */
 573         dma_addr_t p_addr;      /* access by card's busmaster DMA */
 574         u32 len;                /* bytes */
 575 };
 576
 577 /* uCode file layout */
 578 struct iwl_ucode_header {
 579         __le32 ver;     /* major/minor/API/serial */
 580         union {
 581                 struct {
 582                         __le32 inst_size;       /* bytes of runtime code */
 583                         __le32 data_size;       /* bytes of runtime data */
 584                         __le32 init_size;       /* bytes of init code */
 585                         __le32 init_data_size;  /* bytes of init data */
 586                         __le32 boot_size;       /* bytes of bootstrap code */
 587                         u8 data[0];             /* in same order as sizes */
 588                 } v1;
 589                 struct {
 590                         __le32 build;           /* build number */
 591                         __le32 inst_size;       /* bytes of runtime code */
 592                         __le32 data_size;       /* bytes of runtime data */
 593                         __le32 init_size;       /* bytes of init code */
 594                         __le32 init_data_size;  /* bytes of init data */
 595                         __le32 boot_size;       /* bytes of bootstrap code */
 596                         u8 data[0];             /* in same order as sizes */
 597                 } v2;
 598         } u;
 599 };
 600 #define UCODE_HEADER_SIZE(ver) ((ver) == 1 ? 24 : 28)
 601
 602 struct iwl4965_ibss_seq {
 603         u8 mac[ETH_ALEN];
 604         u16 seq_num;
 605         u16 frag_num;
 606         unsigned long packet_time;
 607         struct list_head list;
 608 };
 609
 610 struct iwl_sensitivity_ranges {
 611         u16 min_nrg_cck;
 612         u16 max_nrg_cck;
 613
 614         u16 nrg_th_cck;
 615         u16 nrg_th_ofdm;
 616
 617         u16 auto_corr_min_ofdm;
 618         u16 auto_corr_min_ofdm_mrc;
 619         u16 auto_corr_min_ofdm_x1;
 620         u16 auto_corr_min_ofdm_mrc_x1;
 621
 622         u16 auto_corr_max_ofdm;
 623         u16 auto_corr_max_ofdm_mrc;
 624         u16 auto_corr_max_ofdm_x1;
 625         u16 auto_corr_max_ofdm_mrc_x1;
 626
 627         u16 auto_corr_max_cck;
 628         u16 auto_corr_max_cck_mrc;
 629         u16 auto_corr_min_cck;
 630         u16 auto_corr_min_cck_mrc;
 631
 632         u16 barker_corr_th_min;
 633         u16 barker_corr_th_min_mrc;
 634         u16 nrg_th_cca;
 635 };
 636
 637
 638 #define KELVIN_TO_CELSIUS(x) ((x)-273)
 639 #define CELSIUS_TO_KELVIN(x) ((x)+273)
 640
 641
 642 /**
 643  * struct iwl_hw_params
 644  * @max_txq_num: Max # Tx queues supported
 645  * @dma_chnl_num: Number of Tx DMA/FIFO channels
 646  * @scd_bc_tbls_size: size of scheduler byte count tables
 647  * @tfd_size: TFD size
 648  * @tx/rx_chains_num: Number of TX/RX chains
 649  * @valid_tx/rx_ant: usable antennas
 650  * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
 651  * @max_rxq_log: Log-base-2 of max_rxq_size
 652  * @rx_page_order: Rx buffer page order
 653  * @rx_wrt_ptr_reg: FH{39}_RSCSR_CHNL0_WPTR
 654  * @max_stations:
 655  * @bcast_sta_id:
 656  * @ht40_channel: is 40MHz width possible in band 2.4
 657  * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ)
 658  * @sw_crypto: 0 for hw, 1 for sw
 659  * @max_xxx_size: for ucode uses
 660  * @ct_kill_threshold: temperature threshold
 661  * @calib_init_cfg: setup initial calibrations for the hw
 662  * @struct iwl_sensitivity_ranges: range of sensitivity values
 663  */
 664 struct iwl_hw_params {
 665         u8 max_txq_num;
 666         u8 dma_chnl_num;
 667         u16 scd_bc_tbls_size;
 668         u32 tfd_size;
 669         u8  tx_chains_num;
 670         u8  rx_chains_num;
 671         u8  valid_tx_ant;
 672         u8  valid_rx_ant;
 673         u16 max_rxq_size;
 674         u16 max_rxq_log;
 675         u32 rx_page_order;
 676         u32 rx_wrt_ptr_reg;
 677         u8  max_stations;
 678         u8  bcast_sta_id;
 679         u8  ht40_channel;
 680         u8  max_beacon_itrvl;   /* in 1024 ms */
 681         u32 max_inst_size;
 682         u32 max_data_size;
 683         u32 max_bsm_size;
 684         u32 ct_kill_threshold; /* value in hw-dependent units */
 685         u32 ct_kill_exit_threshold; /* value in hw-dependent units */
 686                                     /* for 1000, 6000 series and up */
 687         u32 calib_init_cfg;
 688         const struct iwl_sensitivity_ranges *sens;
 689 };
 690
 691
 692 /******************************************************************************
 693  *
 694  * Functions implemented in core module which are forward declared here
 695  * for use by iwl-[4-5].c
 696  *
 697  * NOTE:  The implementation of these functions are not hardware specific
 698  * which is why they are in the core module files.
 699  *
 700  * Naming convention --
 701  * iwl_         <-- Is part of iwlwifi
 702  * iwlXXXX_     <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
 703  * iwl4965_bg_      <-- Called from work queue context
 704  * iwl4965_mac_     <-- mac80211 callback
 705  *
 706  ****************************************************************************/
 707 extern void iwl_update_chain_flags(struct iwl_priv *priv);
 708 extern int iwl_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src);
 709 extern const u8 iwl_bcast_addr[ETH_ALEN];
 710 extern int iwl_rxq_stop(struct iwl_priv *priv);
 711 extern void iwl_txq_ctx_stop(struct iwl_priv *priv);
 712 extern int iwl_queue_space(const struct iwl_queue *q);
 713 static inline int iwl_queue_used(const struct iwl_queue *q, int i)
 714 {
 715         return q->write_ptr >= q->read_ptr ?
 716                 (i >= q->read_ptr && i < q->write_ptr) :
 717                 !(i < q->read_ptr && i >= q->write_ptr);
 718 }
 719
 720
 721 static inline u8 get_cmd_index(struct iwl_queue *q, u32 index, int is_huge)
 722 {
 723         /*
 724          * This is for init calibration result and scan command which
 725          * required buffer > TFD_MAX_PAYLOAD_SIZE,
 726          * the big buffer at end of command array
 727          */
 728         if (is_huge)
 729                 return q->n_window;     /* must be power of 2 */
 730
 731         /* Otherwise, use normal size buffers */
 732         return index & (q->n_window - 1);
 733 }
 734
 735
 736 struct iwl_dma_ptr {
 737         dma_addr_t dma;
 738         void *addr;
 739         size_t size;
 740 };
 741
 742 #define IWL_OPERATION_MODE_AUTO     0
 743 #define IWL_OPERATION_MODE_HT_ONLY  1
 744 #define IWL_OPERATION_MODE_MIXED    2
 745 #define IWL_OPERATION_MODE_20MHZ    3
 746
 747 #define IWL_TX_CRC_SIZE 4
 748 #define IWL_TX_DELIMITER_SIZE 4
 749
 750 #define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
 751
 752 /* Sensitivity and chain noise calibration */
 753 #define INITIALIZATION_VALUE            0xFFFF
 754 #define IWL4965_CAL_NUM_BEACONS         20
 755 #define IWL_CAL_NUM_BEACONS             16
 756 #define MAXIMUM_ALLOWED_PATHLOSS        15
 757
 758 #define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
 759
 760 #define MAX_FA_OFDM  50
 761 #define MIN_FA_OFDM  5
 762 #define MAX_FA_CCK   50
 763 #define MIN_FA_CCK   5
 764
 765 #define AUTO_CORR_STEP_OFDM       1
 766
 767 #define AUTO_CORR_STEP_CCK     3
 768 #define AUTO_CORR_MAX_TH_CCK   160
 769
 770 #define NRG_DIFF               2
 771 #define NRG_STEP_CCK           2
 772 #define NRG_MARGIN             8
 773 #define MAX_NUMBER_CCK_NO_FA 100
 774
 775 #define AUTO_CORR_CCK_MIN_VAL_DEF    (125)
 776
 777 #define CHAIN_A             0
 778 #define CHAIN_B             1
 779 #define CHAIN_C             2
 780 #define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
 781 #define ALL_BAND_FILTER                 0xFF00
 782 #define IN_BAND_FILTER                  0xFF
 783 #define MIN_AVERAGE_NOISE_MAX_VALUE     0xFFFFFFFF
 784
 785 #define NRG_NUM_PREV_STAT_L     20
 786 #define NUM_RX_CHAINS           3
 787
 788 enum iwl4965_false_alarm_state {
 789         IWL_FA_TOO_MANY = 0,
 790         IWL_FA_TOO_FEW = 1,
 791         IWL_FA_GOOD_RANGE = 2,
 792 };
 793
 794 enum iwl4965_chain_noise_state {
 795         IWL_CHAIN_NOISE_ALIVE = 0,  /* must be 0 */
 796         IWL_CHAIN_NOISE_ACCUMULATE,
 797         IWL_CHAIN_NOISE_CALIBRATED,
 798         IWL_CHAIN_NOISE_DONE,
 799 };
 800
 801 enum iwl4965_calib_enabled_state {
 802         IWL_CALIB_DISABLED = 0,  /* must be 0 */
 803         IWL_CALIB_ENABLED = 1,
 804 };
 805
 806
 807 /*
 808  * enum iwl_calib
 809  * defines the order in which results of initial calibrations
 810  * should be sent to the runtime uCode
 811  */
 812 enum iwl_calib {
 813         IWL_CALIB_XTAL,
 814         IWL_CALIB_DC,
 815         IWL_CALIB_LO,
 816         IWL_CALIB_TX_IQ,
 817         IWL_CALIB_TX_IQ_PERD,
 818         IWL_CALIB_BASE_BAND,
 819         IWL_CALIB_MAX
 820 };
 821
 822 /* Opaque calibration results */
 823 struct iwl_calib_result {
 824         void *buf;
 825         size_t buf_len;
 826 };
 827
 828 enum ucode_type {
 829         UCODE_NONE = 0,
 830         UCODE_INIT,
 831         UCODE_RT
 832 };
 833
 834 /* Sensitivity calib data */
 835 struct iwl_sensitivity_data {
 836         u32 auto_corr_ofdm;
 837         u32 auto_corr_ofdm_mrc;
 838         u32 auto_corr_ofdm_x1;
 839         u32 auto_corr_ofdm_mrc_x1;
 840         u32 auto_corr_cck;
 841         u32 auto_corr_cck_mrc;
 842
 843         u32 last_bad_plcp_cnt_ofdm;
 844         u32 last_fa_cnt_ofdm;
 845         u32 last_bad_plcp_cnt_cck;
 846         u32 last_fa_cnt_cck;
 847
 848         u32 nrg_curr_state;
 849         u32 nrg_prev_state;
 850         u32 nrg_value[10];
 851         u8  nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
 852         u32 nrg_silence_ref;
 853         u32 nrg_energy_idx;
 854         u32 nrg_silence_idx;
 855         u32 nrg_th_cck;
 856         s32 nrg_auto_corr_silence_diff;
 857         u32 num_in_cck_no_fa;
 858         u32 nrg_th_ofdm;
 859
 860         u16 barker_corr_th_min;
 861         u16 barker_corr_th_min_mrc;
 862         u16 nrg_th_cca;
 863 };
 864
 865 /* Chain noise (differential Rx gain) calib data */
 866 struct iwl_chain_noise_data {
 867         u32 active_chains;
 868         u32 chain_noise_a;
 869         u32 chain_noise_b;
 870         u32 chain_noise_c;
 871         u32 chain_signal_a;
 872         u32 chain_signal_b;
 873         u32 chain_signal_c;
 874         u16 beacon_count;
 875         u8 disconn_array[NUM_RX_CHAINS];
 876         u8 delta_gain_code[NUM_RX_CHAINS];
 877         u8 radio_write;
 878         u8 state;
 879 };
 880
 881 #define EEPROM_SEM_TIMEOUT 10           /* milliseconds */
 882 #define EEPROM_SEM_RETRY_LIMIT 1000     /* number of attempts (not time) */
 883
 884 #define IWL_TRAFFIC_ENTRIES     (256)
 885 #define IWL_TRAFFIC_ENTRY_SIZE  (64)
 886
 887 enum {
 888         MEASUREMENT_READY = (1 << 0),
 889         MEASUREMENT_ACTIVE = (1 << 1),
 890 };
 891
 892 enum iwl_nvm_type {
 893         NVM_DEVICE_TYPE_EEPROM = 0,
 894         NVM_DEVICE_TYPE_OTP,
 895 };
 896
 897 /*
 898  * Two types of OTP memory access modes
 899  *   IWL_OTP_ACCESS_ABSOLUTE - absolute address mode,
 900  *                              based on physical memory addressing
 901  *   IWL_OTP_ACCESS_RELATIVE - relative address mode,
 902  *                             based on logical memory addressing
 903  */
 904 enum iwl_access_mode {
 905         IWL_OTP_ACCESS_ABSOLUTE,
 906         IWL_OTP_ACCESS_RELATIVE,
 907 };
 908
 909 /**
 910  * enum iwl_pa_type - Power Amplifier type
 911  * @IWL_PA_SYSTEM:  based on uCode configuration
 912  * @IWL_PA_INTERNAL: use Internal only
 913  */
 914 enum iwl_pa_type {
 915         IWL_PA_SYSTEM = 0,
 916         IWL_PA_INTERNAL = 1,
 917 };
 918
 919 /* interrupt statistics */
 920 struct isr_statistics {
 921         u32 hw;
 922         u32 sw;
 923         u32 sw_err;
 924         u32 sch;
 925         u32 alive;
 926         u32 rfkill;
 927         u32 ctkill;
 928         u32 wakeup;
 929         u32 rx;
 930         u32 rx_handlers[REPLY_MAX];
 931         u32 tx;
 932         u32 unhandled;
 933 };
 934
 935 #ifdef CONFIG_IWLWIFI_DEBUGFS
 936 /* management statistics */
 937 enum iwl_mgmt_stats {
 938         MANAGEMENT_ASSOC_REQ = 0,
 939         MANAGEMENT_ASSOC_RESP,
 940         MANAGEMENT_REASSOC_REQ,
 941         MANAGEMENT_REASSOC_RESP,
 942         MANAGEMENT_PROBE_REQ,
 943         MANAGEMENT_PROBE_RESP,
 944         MANAGEMENT_BEACON,
 945         MANAGEMENT_ATIM,
 946         MANAGEMENT_DISASSOC,
 947         MANAGEMENT_AUTH,
 948         MANAGEMENT_DEAUTH,
 949         MANAGEMENT_ACTION,
 950         MANAGEMENT_MAX,
 951 };
 952 /* control statistics */
 953 enum iwl_ctrl_stats {
 954         CONTROL_BACK_REQ =  0,
 955         CONTROL_BACK,
 956         CONTROL_PSPOLL,
 957         CONTROL_RTS,
 958         CONTROL_CTS,
 959         CONTROL_ACK,
 960         CONTROL_CFEND,
 961         CONTROL_CFENDACK,
 962         CONTROL_MAX,
 963 };
 964
 965 struct traffic_stats {
 966         u32 mgmt[MANAGEMENT_MAX];
 967         u32 ctrl[CONTROL_MAX];
 968         u32 data_cnt;
 969         u64 data_bytes;
 970 };
 971 #else
 972 struct traffic_stats {
 973         u64 data_bytes;
 974 };
 975 #endif
 976
 977 /*
 978  * iwl_switch_rxon: "channel switch" structure
 979  *
 980  * @ switch_in_progress: channel switch in progress
 981  * @ channel: new channel
 982  */
 983 struct iwl_switch_rxon {
 984         bool switch_in_progress;
 985         __le16 channel;
 986 };
 987
 988 /*
 989  * schedule the timer to wake up every UCODE_TRACE_PERIOD milliseconds
 990  * to perform continuous uCode event logging operation if enabled
 991  */
 992 #define UCODE_TRACE_PERIOD (100)
 993
 994 /*
 995  * iwl_event_log: current uCode event log position
 996  *
 997  * @ucode_trace: enable/disable ucode continuous trace timer
 998  * @num_wraps: how many times the event buffer wraps
 999  * @next_entry:  the entry just before the next one that uCode would fill
1000  * @non_wraps_count: counter for no wrap detected when dump ucode events
1001  * @wraps_once_count: counter for wrap once detected when dump ucode events
1002  * @wraps_more_count: counter for wrap more than once detected
1003  *                    when dump ucode events
1004  */
1005 struct iwl_event_log {
1006         bool ucode_trace;
1007         u32 num_wraps;
1008         u32 next_entry;
1009         int non_wraps_count;
1010         int wraps_once_count;
1011         int wraps_more_count;
1012 };
1013
1014 struct iwl_priv {
1015
1016         /* ieee device used by generic ieee processing code */
1017         struct ieee80211_hw *hw;
1018         struct ieee80211_channel *ieee_channels;
1019         struct ieee80211_rate *ieee_rates;
1020         struct iwl_cfg *cfg;
1021
1022         /* temporary frame storage list */
1023         struct list_head free_frames;
1024         int frames_count;
1025
1026         enum ieee80211_band band;
1027         int alloc_rxb_page;
1028
1029         void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
1030                                        struct iwl_rx_mem_buffer *rxb);
1031
1032         struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
1033
1034 #if defined(CONFIG_IWLWIFI_SPECTRUM_MEASUREMENT) || defined(CONFIG_IWL3945_SPECTRUM_MEASUREMENT)
1035         /* spectrum measurement report caching */
1036         struct iwl_spectrum_notification measure_report;
1037         u8 measurement_status;
1038 #endif
1039         /* ucode beacon time */
1040         u32 ucode_beacon_time;
1041
1042         /* we allocate array of iwl4965_channel_info for NIC's valid channels.
1043          *    Access via channel # using indirect index array */
1044         struct iwl_channel_info *channel_info;  /* channel info array */
1045         u8 channel_count;       /* # of channels */
1046
1047         /* each calibration channel group in the EEPROM has a derived
1048          * clip setting for each rate. 3945 only.*/
1049         const struct iwl3945_clip_group clip39_groups[5];
1050
1051         /* thermal calibration */
1052         s32 temperature;        /* degrees Kelvin */
1053         s32 last_temperature;
1054
1055         /* init calibration results */
1056         struct iwl_calib_result calib_results[IWL_CALIB_MAX];
1057
1058         /* Scan related variables */
1059         unsigned long last_scan_jiffies;
1060         unsigned long next_scan_jiffies;
1061         unsigned long scan_start;
1062         unsigned long scan_pass_start;
1063         unsigned long scan_start_tsf;
1064         void *scan;
1065         int scan_bands;
1066         struct cfg80211_scan_request *scan_request;
1067         u8 scan_tx_ant[IEEE80211_NUM_BANDS];
1068         u8 mgmt_tx_ant;
1069
1070         /* spinlock */
1071         spinlock_t lock;        /* protect general shared data */
1072         spinlock_t hcmd_lock;   /* protect hcmd */
1073         spinlock_t reg_lock;    /* protect hw register access */
1074         struct mutex mutex;
1075
1076         /* basic pci-network driver stuff */
1077         struct pci_dev *pci_dev;
1078
1079         /* pci hardware address support */
1080         void __iomem *hw_base;
1081         u32  hw_rev;
1082         u32  hw_wa_rev;
1083         u8   rev_id;
1084
1085         /* uCode images, save to reload in case of failure */
1086         u32 ucode_ver;                  /* version of ucode, copy of
1087                                            iwl_ucode.ver */
1088         struct fw_desc ucode_code;      /* runtime inst */
1089         struct fw_desc ucode_data;      /* runtime data original */
1090         struct fw_desc ucode_data_backup;       /* runtime data save/restore */
1091         struct fw_desc ucode_init;      /* initialization inst */
1092         struct fw_desc ucode_init_data; /* initialization data */
1093         struct fw_desc ucode_boot;      /* bootstrap inst */
1094         enum ucode_type ucode_type;
1095         u8 ucode_write_complete;        /* the image write is complete */
1096
1097
1098         struct iwl_rxon_time_cmd rxon_timing;
1099
1100         /* We declare this const so it can only be
1101          * changed via explicit cast within the
1102          * routines that actually update the physical
1103          * hardware */
1104         const struct iwl_rxon_cmd active_rxon;
1105         struct iwl_rxon_cmd staging_rxon;
1106
1107         struct iwl_switch_rxon switch_rxon;
1108
1109         /* 1st responses from initialize and runtime uCode images.
1110          * 4965's initialize alive response contains some calibration data. */
1111         struct iwl_init_alive_resp card_alive_init;
1112         struct iwl_alive_resp card_alive;
1113
1114         unsigned long last_blink_time;
1115         u8 last_blink_rate;
1116         u8 allow_blinking;
1117         u64 led_tpt;
1118
1119         u16 active_rate;
1120         u16 active_rate_basic;
1121
1122         u8 assoc_station_added;
1123         u8 start_calib;
1124         struct iwl_sensitivity_data sensitivity_data;
1125         struct iwl_chain_noise_data chain_noise_data;
1126         __le16 sensitivity_tbl[HD_TABLE_SIZE];
1127
1128         struct iwl_ht_config current_ht_config;
1129         u8 last_phy_res[100];
1130
1131         /* Rate scaling data */
1132         u8 retry_rate;
1133
1134         wait_queue_head_t wait_command_queue;
1135
1136         int activity_timer_active;
1137
1138         /* Rx and Tx DMA processing queues */
1139         struct iwl_rx_queue rxq;
1140         struct iwl_tx_queue *txq;
1141         unsigned long txq_ctx_active_msk;
1142         struct iwl_dma_ptr  kw; /* keep warm address */
1143         struct iwl_dma_ptr  scd_bc_tbls;
1144
1145         u32 scd_base_addr;      /* scheduler sram base address */
1146
1147         unsigned long status;
1148
1149         int last_rx_rssi;       /* From Rx packet statistics */
1150         int last_rx_noise;      /* From beacon statistics */
1151
1152         /* counts mgmt, ctl, and data packets */
1153         struct traffic_stats tx_stats;
1154         struct traffic_stats rx_stats;
1155
1156         /* counts interrupts */
1157         struct isr_statistics isr_stats;
1158
1159         struct iwl_power_mgr power_data;
1160         struct iwl_tt_mgmt thermal_throttle;
1161
1162         struct iwl_notif_statistics statistics;
1163 #ifdef CONFIG_IWLWIFI_DEBUG
1164         struct iwl_notif_statistics accum_statistics;
1165 #endif
1166
1167         /* context information */
1168         u16 rates_mask;
1169
1170         u8 bssid[ETH_ALEN];
1171         u16 rts_threshold;
1172         u8 mac_addr[ETH_ALEN];
1173
1174         /*station table variables */
1175         spinlock_t sta_lock;
1176         int num_stations;
1177         struct iwl_station_entry stations[IWL_STATION_COUNT];
1178         struct iwl_wep_key wep_keys[WEP_KEYS_MAX];
1179         u8 default_wep_key;
1180         u8 key_mapping_key;
1181         unsigned long ucode_key_table;
1182
1183         /* queue refcounts */
1184 #define IWL_MAX_HW_QUEUES       32
1185         unsigned long queue_stopped[BITS_TO_LONGS(IWL_MAX_HW_QUEUES)];
1186         /* for each AC */
1187         atomic_t queue_stop_count[4];
1188
1189         /* Indication if ieee80211_ops->open has been called */
1190         u8 is_open;
1191
1192         u8 mac80211_registered;
1193
1194         /* Rx'd packet timing information */
1195         u32 last_beacon_time;
1196         u64 last_tsf;
1197
1198         /* eeprom -- this is in the card's little endian byte order */
1199         u8 *eeprom;
1200         int    nvm_device_type;
1201         struct iwl_eeprom_calib_info *calib_info;
1202
1203         enum nl80211_iftype iw_mode;
1204
1205         struct sk_buff *ibss_beacon;
1206
1207         /* Last Rx'd beacon timestamp */
1208         u64 timestamp;
1209         u16 beacon_int;
1210         struct ieee80211_vif *vif;
1211
1212         /*Added for 3945 */
1213         void *shared_virt;
1214         dma_addr_t shared_phys;
1215         /*End*/
1216         struct iwl_hw_params hw_params;
1217
1218         /* INT ICT Table */
1219         __le32 *ict_tbl;
1220         dma_addr_t ict_tbl_dma;
1221         dma_addr_t aligned_ict_tbl_dma;
1222         int ict_index;
1223         void *ict_tbl_vir;
1224         u32 inta;
1225         bool use_ict;
1226
1227         u32 inta_mask;
1228         /* Current association information needed to configure the
1229          * hardware */
1230         u16 assoc_id;
1231         u16 assoc_capability;
1232
1233         struct iwl_qos_info qos_data;
1234
1235         struct workqueue_struct *workqueue;
1236
1237         struct work_struct up;
1238         struct work_struct restart;
1239         struct work_struct calibrated_work;
1240         struct work_struct scan_completed;
1241         struct work_struct rx_replenish;
1242         struct work_struct abort_scan;
1243         struct work_struct update_link_led;
1244         struct work_struct auth_work;
1245         struct work_struct report_work;
1246         struct work_struct request_scan;
1247         struct work_struct beacon_update;
1248         struct work_struct tt_work;
1249         struct work_struct ct_enter;
1250         struct work_struct ct_exit;
1251
1252         struct tasklet_struct irq_tasklet;
1253
1254         struct delayed_work init_alive_start;
1255         struct delayed_work alive_start;
1256         struct delayed_work scan_check;
1257
1258         /*For 3945 only*/
1259         struct delayed_work thermal_periodic;
1260         struct delayed_work rfkill_poll;
1261
1262         /* TX Power */
1263         s8 tx_power_user_lmt;
1264         s8 tx_power_device_lmt;
1265         s8 tx_power_lmt_in_half_dbm; /* max tx power in half-dBm format */
1266
1267
1268 #ifdef CONFIG_IWLWIFI_DEBUG
1269         /* debugging info */
1270         u32 debug_level; /* per device debugging will override global
1271                             iwl_debug_level if set */
1272         u32 framecnt_to_us;
1273         atomic_t restrict_refcnt;
1274         bool disable_ht40;
1275 #ifdef CONFIG_IWLWIFI_DEBUGFS
1276         /* debugfs */
1277         u16 tx_traffic_idx;
1278         u16 rx_traffic_idx;
1279         u8 *tx_traffic;
1280         u8 *rx_traffic;
1281         struct iwl_debugfs *dbgfs;
1282 #endif /* CONFIG_IWLWIFI_DEBUGFS */
1283 #endif /* CONFIG_IWLWIFI_DEBUG */
1284
1285         struct work_struct txpower_work;
1286         u32 disable_sens_cal;
1287         u32 disable_chain_noise_cal;
1288         u32 disable_tx_power_cal;
1289         struct work_struct run_time_calib_work;
1290         struct timer_list statistics_periodic;
1291         struct timer_list ucode_trace;
1292         bool hw_ready;
1293         /*For 3945*/
1294 #define IWL_DEFAULT_TX_POWER 0x0F
1295
1296         struct iwl3945_notif_statistics statistics_39;
1297
1298         u32 sta_supp_rates;
1299
1300         struct iwl_event_log event_log;
1301 }; /*iwl_priv */
1302
1303 static inline void iwl_txq_ctx_activate(struct iwl_priv *priv, int txq_id)
1304 {
1305         set_bit(txq_id, &priv->txq_ctx_active_msk);
1306 }
1307
1308 static inline void iwl_txq_ctx_deactivate(struct iwl_priv *priv, int txq_id)
1309 {
1310         clear_bit(txq_id, &priv->txq_ctx_active_msk);
1311 }
1312
1313 #ifdef CONFIG_IWLWIFI_DEBUG
1314 const char *iwl_get_tx_fail_reason(u32 status);
1315 /*
1316  * iwl_get_debug_level: Return active debug level for device
1317  *
1318  * Using sysfs it is possible to set per device debug level. This debug
1319  * level will be used if set, otherwise the global debug level which can be
1320  * set via module parameter is used.
1321  */
1322 static inline u32 iwl_get_debug_level(struct iwl_priv *priv)
1323 {
1324         if (priv->debug_level)
1325                 return priv->debug_level;
1326         else
1327                 return iwl_debug_level;
1328 }
1329 #else
1330 static inline const char *iwl_get_tx_fail_reason(u32 status) { return ""; }
1331
1332 static inline u32 iwl_get_debug_level(struct iwl_priv *priv)
1333 {
1334         return iwl_debug_level;
1335 }
1336 #endif
1337
1338
1339 static inline struct ieee80211_hdr *iwl_tx_queue_get_hdr(struct iwl_priv *priv,
1340                                                          int txq_id, int idx)
1341 {
1342         if (priv->txq[txq_id].txb[idx].skb[0])
1343                 return (struct ieee80211_hdr *)priv->txq[txq_id].
1344                                 txb[idx].skb[0]->data;
1345         return NULL;
1346 }
1347
1348
1349 static inline int iwl_is_associated(struct iwl_priv *priv)
1350 {
1351         return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
1352 }
1353
1354 static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
1355 {
1356         if (ch_info == NULL)
1357                 return 0;
1358         return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
1359 }
1360
1361 static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
1362 {
1363         return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
1364 }
1365
1366 static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
1367 {
1368         return ch_info->band == IEEE80211_BAND_5GHZ;
1369 }
1370
1371 static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
1372 {
1373         return ch_info->band == IEEE80211_BAND_2GHZ;
1374 }
1375
1376 static inline int is_channel_passive(const struct iwl_channel_info *ch)
1377 {
1378         return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1379 }
1380
1381 static inline int is_channel_ibss(const struct iwl_channel_info *ch)
1382 {
1383         return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1384 }
1385
1386 static inline void __iwl_free_pages(struct iwl_priv *priv, struct page *page)
1387 {
1388         __free_pages(page, priv->hw_params.rx_page_order);
1389         priv->alloc_rxb_page--;
1390 }
1391
1392 static inline void iwl_free_pages(struct iwl_priv *priv, unsigned long page)
1393 {
1394         free_pages(page, priv->hw_params.rx_page_order);
1395         priv->alloc_rxb_page--;
1396 }
1397 #endif                          /* __iwl_dev_h__ */