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-3945-led.h"
  47 #include "iwl-led.h"
  48 #include "iwl-power.h"
  49 #include "iwl-agn-rs.h"
  50
  51 /* configuration for the iwl4965 */
  52 extern struct iwl_cfg iwl4965_agn_cfg;
  53 extern struct iwl_cfg iwl5300_agn_cfg;
  54 extern struct iwl_cfg iwl5100_agn_cfg;
  55 extern struct iwl_cfg iwl5350_agn_cfg;
  56 extern struct iwl_cfg iwl5100_bg_cfg;
  57 extern struct iwl_cfg iwl5100_abg_cfg;
  58 extern struct iwl_cfg iwl5150_agn_cfg;
  59 extern struct iwl_cfg iwl6000h_2agn_cfg;
  60 extern struct iwl_cfg iwl6000i_2agn_cfg;
  61 extern struct iwl_cfg iwl6000_3agn_cfg;
  62 extern struct iwl_cfg iwl6050_2agn_cfg;
  63 extern struct iwl_cfg iwl6050_3agn_cfg;
  64 extern struct iwl_cfg iwl1000_bgn_cfg;
  65
  66 struct iwl_tx_queue;
  67
  68 /* shared structures from iwl-5000.c */
  69 extern struct iwl_mod_params iwl50_mod_params;
  70 extern struct iwl_ops iwl5000_ops;
  71 extern struct iwl_ucode_ops iwl5000_ucode;
  72 extern struct iwl_lib_ops iwl5000_lib;
  73 extern struct iwl_hcmd_ops iwl5000_hcmd;
  74 extern struct iwl_hcmd_utils_ops iwl5000_hcmd_utils;
  75
  76 /* shared functions from iwl-5000.c */
  77 extern u16 iwl5000_get_hcmd_size(u8 cmd_id, u16 len);
  78 extern u16 iwl5000_build_addsta_hcmd(const struct iwl_addsta_cmd *cmd,
  79                                      u8 *data);
  80 extern void iwl5000_rts_tx_cmd_flag(struct ieee80211_tx_info *info,
  81                                     __le32 *tx_flags);
  82 extern int iwl5000_calc_rssi(struct iwl_priv *priv,
  83                              struct iwl_rx_phy_res *rx_resp);
  84 extern int iwl5000_apm_init(struct iwl_priv *priv);
  85 extern void iwl5000_apm_stop(struct iwl_priv *priv);
  86 extern int iwl5000_apm_reset(struct iwl_priv *priv);
  87 extern void iwl5000_nic_config(struct iwl_priv *priv);
  88 extern u16 iwl5000_eeprom_calib_version(struct iwl_priv *priv);
  89 extern const u8 *iwl5000_eeprom_query_addr(const struct iwl_priv *priv,
  90                                     size_t offset);
  91 extern void iwl5000_txq_update_byte_cnt_tbl(struct iwl_priv *priv,
  92                                             struct iwl_tx_queue *txq,
  93                                             u16 byte_cnt);
  94 extern void iwl5000_txq_inval_byte_cnt_tbl(struct iwl_priv *priv,
  95                                     struct iwl_tx_queue *txq);
  96 extern int iwl5000_load_ucode(struct iwl_priv *priv);
  97 extern void iwl5000_init_alive_start(struct iwl_priv *priv);
  98 extern int iwl5000_alive_notify(struct iwl_priv *priv);
  99 extern int iwl5000_hw_set_hw_params(struct iwl_priv *priv);
 100 extern int iwl5000_txq_agg_enable(struct iwl_priv *priv, int txq_id,
 101                            int tx_fifo, int sta_id, int tid, u16 ssn_idx);
 102 extern int iwl5000_txq_agg_disable(struct iwl_priv *priv, u16 txq_id,
 103                             u16 ssn_idx, u8 tx_fifo);
 104 extern void iwl5000_txq_set_sched(struct iwl_priv *priv, u32 mask);
 105 extern void iwl5000_setup_deferred_work(struct iwl_priv *priv);
 106 extern void iwl5000_rx_handler_setup(struct iwl_priv *priv);
 107 extern int iwl5000_hw_valid_rtc_data_addr(u32 addr);
 108 extern int iwl5000_send_tx_power(struct iwl_priv *priv);
 109 extern void iwl5000_temperature(struct iwl_priv *priv);
 110
 111 /* CT-KILL constants */
 112 #define CT_KILL_THRESHOLD_LEGACY   110 /* in Celsius */
 113 #define CT_KILL_THRESHOLD          114 /* in Celsius */
 114 #define CT_KILL_EXIT_THRESHOLD     95  /* in Celsius */
 115
 116 /* Default noise level to report when noise measurement is not available.
 117  *   This may be because we're:
 118  *   1)  Not associated (4965, no beacon statistics being sent to driver)
 119  *   2)  Scanning (noise measurement does not apply to associated channel)
 120  *   3)  Receiving CCK (3945 delivers noise info only for OFDM frames)
 121  * Use default noise value of -127 ... this is below the range of measurable
 122  *   Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
 123  *   Also, -127 works better than 0 when averaging frames with/without
 124  *   noise info (e.g. averaging might be done in app); measured dBm values are
 125  *   always negative ... using a negative value as the default keeps all
 126  *   averages within an s8's (used in some apps) range of negative values. */
 127 #define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
 128
 129 /*
 130  * RTS threshold here is total size [2347] minus 4 FCS bytes
 131  * Per spec:
 132  *   a value of 0 means RTS on all data/management packets
 133  *   a value > max MSDU size means no RTS
 134  * else RTS for data/management frames where MPDU is larger
 135  *   than RTS value.
 136  */
 137 #define DEFAULT_RTS_THRESHOLD     2347U
 138 #define MIN_RTS_THRESHOLD         0U
 139 #define MAX_RTS_THRESHOLD         2347U
 140 #define MAX_MSDU_SIZE             2304U
 141 #define MAX_MPDU_SIZE             2346U
 142 #define DEFAULT_BEACON_INTERVAL   100U
 143 #define DEFAULT_SHORT_RETRY_LIMIT 7U
 144 #define DEFAULT_LONG_RETRY_LIMIT  4U
 145
 146 struct iwl_rx_mem_buffer {
 147         dma_addr_t real_dma_addr;
 148         dma_addr_t aligned_dma_addr;
 149         struct sk_buff *skb;
 150         struct list_head list;
 151 };
 152
 153 /* defined below */
 154 struct iwl_device_cmd;
 155
 156 struct iwl_cmd_meta {
 157         /* only for SYNC commands, iff the reply skb is wanted */
 158         struct iwl_host_cmd *source;
 159         /*
 160          * only for ASYNC commands
 161          * (which is somewhat stupid -- look at iwl-sta.c for instance
 162          * which duplicates a bunch of code because the callback isn't
 163          * invoked for SYNC commands, if it were and its result passed
 164          * through it would be simpler...)
 165          */
 166         void (*callback)(struct iwl_priv *priv,
 167                          struct iwl_device_cmd *cmd,
 168                          struct sk_buff *skb);
 169
 170         /* The CMD_SIZE_HUGE flag bit indicates that the command
 171          * structure is stored at the end of the shared queue memory. */
 172         u32 flags;
 173
 174         DECLARE_PCI_UNMAP_ADDR(mapping)
 175         DECLARE_PCI_UNMAP_LEN(len)
 176 };
 177
 178 /*
 179  * Generic queue structure
 180  *
 181  * Contains common data for Rx and Tx queues
 182  */
 183 struct iwl_queue {
 184         int n_bd;              /* number of BDs in this queue */
 185         int write_ptr;       /* 1-st empty entry (index) host_w*/
 186         int read_ptr;         /* last used entry (index) host_r*/
 187         dma_addr_t dma_addr;   /* physical addr for BD's */
 188         int n_window;          /* safe queue window */
 189         u32 id;
 190         int low_mark;          /* low watermark, resume queue if free
 191                                 * space more than this */
 192         int high_mark;         /* high watermark, stop queue if free
 193                                 * space less than this */
 194 } __attribute__ ((packed));
 195
 196 /* One for each TFD */
 197 struct iwl_tx_info {
 198         struct sk_buff *skb[IWL_NUM_OF_TBS - 1];
 199 };
 200
 201 /**
 202  * struct iwl_tx_queue - Tx Queue for DMA
 203  * @q: generic Rx/Tx queue descriptor
 204  * @bd: base of circular buffer of TFDs
 205  * @cmd: array of command/TX buffer pointers
 206  * @meta: array of meta data for each command/tx buffer
 207  * @dma_addr_cmd: physical address of cmd/tx buffer array
 208  * @txb: array of per-TFD driver data
 209  * @need_update: indicates need to update read/write index
 210  * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
 211  *
 212  * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
 213  * descriptors) and required locking structures.
 214  */
 215 #define TFD_TX_CMD_SLOTS 256
 216 #define TFD_CMD_SLOTS 32
 217
 218 struct iwl_tx_queue {
 219         struct iwl_queue q;
 220         void *tfds;
 221         struct iwl_device_cmd **cmd;
 222         struct iwl_cmd_meta *meta;
 223         struct iwl_tx_info *txb;
 224         u8 need_update;
 225         u8 sched_retry;
 226         u8 active;
 227         u8 swq_id;
 228 };
 229
 230 #define IWL_NUM_SCAN_RATES         (2)
 231
 232 struct iwl4965_channel_tgd_info {
 233         u8 type;
 234         s8 max_power;
 235 };
 236
 237 struct iwl4965_channel_tgh_info {
 238         s64 last_radar_time;
 239 };
 240
 241 #define IWL4965_MAX_RATE (33)
 242
 243 struct iwl3945_clip_group {
 244         /* maximum power level to prevent clipping for each rate, derived by
 245          *   us from this band's saturation power in EEPROM */
 246         const s8 clip_powers[IWL_MAX_RATES];
 247 };
 248
 249 /* current Tx power values to use, one for each rate for each channel.
 250  * requested power is limited by:
 251  * -- regulatory EEPROM limits for this channel
 252  * -- hardware capabilities (clip-powers)
 253  * -- spectrum management
 254  * -- user preference (e.g. iwconfig)
 255  * when requested power is set, base power index must also be set. */
 256 struct iwl3945_channel_power_info {
 257         struct iwl3945_tx_power tpc;    /* actual radio and DSP gain settings */
 258         s8 power_table_index;   /* actual (compenst'd) index into gain table */
 259         s8 base_power_index;    /* gain index for power at factory temp. */
 260         s8 requested_power;     /* power (dBm) requested for this chnl/rate */
 261 };
 262
 263 /* current scan Tx power values to use, one for each scan rate for each
 264  * channel. */
 265 struct iwl3945_scan_power_info {
 266         struct iwl3945_tx_power tpc;    /* actual radio and DSP gain settings */
 267         s8 power_table_index;   /* actual (compenst'd) index into gain table */
 268         s8 requested_power;     /* scan pwr (dBm) requested for chnl/rate */
 269 };
 270
 271 /*
 272  * One for each channel, holds all channel setup data
 273  * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
 274  *     with one another!
 275  */
 276 struct iwl_channel_info {
 277         struct iwl4965_channel_tgd_info tgd;
 278         struct iwl4965_channel_tgh_info tgh;
 279         struct iwl_eeprom_channel eeprom;       /* EEPROM regulatory limit */
 280         struct iwl_eeprom_channel ht40_eeprom;  /* EEPROM regulatory limit for
 281                                                  * HT40 channel */
 282
 283         u8 channel;       /* channel number */
 284         u8 flags;         /* flags copied from EEPROM */
 285         s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
 286         s8 curr_txpow;    /* (dBm) regulatory/spectrum/user (not h/w) limit */
 287         s8 min_power;     /* always 0 */
 288         s8 scan_power;    /* (dBm) regul. eeprom, direct scans, any rate */
 289
 290         u8 group_index;   /* 0-4, maps channel to group1/2/3/4/5 */
 291         u8 band_index;    /* 0-4, maps channel to band1/2/3/4/5 */
 292         enum ieee80211_band band;
 293
 294         /* HT40 channel info */
 295         s8 ht40_max_power_avg;  /* (dBm) regul. eeprom, normal Tx, any rate */
 296         s8 ht40_curr_txpow;     /* (dBm) regulatory/spectrum/user (not h/w) */
 297         s8 ht40_min_power;      /* always 0 */
 298         s8 ht40_scan_power;     /* (dBm) eeprom, direct scans, any rate */
 299         u8 ht40_flags;          /* flags copied from EEPROM */
 300         u8 ht40_extension_channel; /* HT_IE_EXT_CHANNEL_* */
 301
 302         /* Radio/DSP gain settings for each "normal" data Tx rate.
 303          * These include, in addition to RF and DSP gain, a few fields for
 304          *   remembering/modifying gain settings (indexes). */
 305         struct iwl3945_channel_power_info power_info[IWL4965_MAX_RATE];
 306
 307         /* Radio/DSP gain settings for each scan rate, for directed scans. */
 308         struct iwl3945_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES];
 309 };
 310
 311 #define IWL_TX_FIFO_AC0 0
 312 #define IWL_TX_FIFO_AC1 1
 313 #define IWL_TX_FIFO_AC2 2
 314 #define IWL_TX_FIFO_AC3 3
 315 #define IWL_TX_FIFO_HCCA_1      5
 316 #define IWL_TX_FIFO_HCCA_2      6
 317 #define IWL_TX_FIFO_NONE        7
 318
 319 /* Minimum number of queues. MAX_NUM is defined in hw specific files.
 320  * Set the minimum to accommodate the 4 standard TX queues, 1 command
 321  * queue, 2 (unused) HCCA queues, and 4 HT queues (one for each AC) */
 322 #define IWL_MIN_NUM_QUEUES      10
 323
 324 /* Power management (not Tx power) structures */
 325
 326 enum iwl_pwr_src {
 327         IWL_PWR_SRC_VMAIN,
 328         IWL_PWR_SRC_VAUX,
 329 };
 330
 331 #define IEEE80211_DATA_LEN              2304
 332 #define IEEE80211_4ADDR_LEN             30
 333 #define IEEE80211_HLEN                  (IEEE80211_4ADDR_LEN)
 334 #define IEEE80211_FRAME_LEN             (IEEE80211_DATA_LEN + IEEE80211_HLEN)
 335
 336 struct iwl_frame {
 337         union {
 338                 struct ieee80211_hdr frame;
 339                 struct iwl_tx_beacon_cmd beacon;
 340                 u8 raw[IEEE80211_FRAME_LEN];
 341                 u8 cmd[360];
 342         } u;
 343         struct list_head list;
 344 };
 345
 346 #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
 347 #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
 348 #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
 349
 350 enum {
 351         CMD_SYNC = 0,
 352         CMD_SIZE_NORMAL = 0,
 353         CMD_NO_SKB = 0,
 354         CMD_SIZE_HUGE = (1 << 0),
 355         CMD_ASYNC = (1 << 1),
 356         CMD_WANT_SKB = (1 << 2),
 357 };
 358
 359 #define IWL_CMD_MAX_PAYLOAD 320
 360
 361 /**
 362  * struct iwl_device_cmd
 363  *
 364  * For allocation of the command and tx queues, this establishes the overall
 365  * size of the largest command we send to uCode, except for a scan command
 366  * (which is relatively huge; space is allocated separately).
 367  */
 368 struct iwl_device_cmd {
 369         struct iwl_cmd_header hdr;      /* uCode API */
 370         union {
 371                 u32 flags;
 372                 u8 val8;
 373                 u16 val16;
 374                 u32 val32;
 375                 struct iwl_tx_cmd tx;
 376                 u8 payload[IWL_CMD_MAX_PAYLOAD];
 377         } __attribute__ ((packed)) cmd;
 378 } __attribute__ ((packed));
 379
 380 #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_device_cmd))
 381
 382
 383 struct iwl_host_cmd {
 384         const void *data;
 385         struct sk_buff *reply_skb;
 386         void (*callback)(struct iwl_priv *priv,
 387                          struct iwl_device_cmd *cmd,
 388                          struct sk_buff *skb);
 389         u32 flags;
 390         u16 len;
 391         u8 id;
 392 };
 393
 394 /*
 395  * RX related structures and functions
 396  */
 397 #define RX_FREE_BUFFERS 64
 398 #define RX_LOW_WATERMARK 8
 399
 400 #define SUP_RATE_11A_MAX_NUM_CHANNELS  8
 401 #define SUP_RATE_11B_MAX_NUM_CHANNELS  4
 402 #define SUP_RATE_11G_MAX_NUM_CHANNELS  12
 403
 404 /**
 405  * struct iwl_rx_queue - Rx queue
 406  * @bd: driver's pointer to buffer of receive buffer descriptors (rbd)
 407  * @dma_addr: bus address of buffer of receive buffer descriptors (rbd)
 408  * @read: Shared index to newest available Rx buffer
 409  * @write: Shared index to oldest written Rx packet
 410  * @free_count: Number of pre-allocated buffers in rx_free
 411  * @rx_free: list of free SKBs for use
 412  * @rx_used: List of Rx buffers with no SKB
 413  * @need_update: flag to indicate we need to update read/write index
 414  * @rb_stts: driver's pointer to receive buffer status
 415  * @rb_stts_dma: bus address of receive buffer status
 416  *
 417  * NOTE:  rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers
 418  */
 419 struct iwl_rx_queue {
 420         __le32 *bd;
 421         dma_addr_t dma_addr;
 422         struct iwl_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
 423         struct iwl_rx_mem_buffer *queue[RX_QUEUE_SIZE];
 424         u32 read;
 425         u32 write;
 426         u32 free_count;
 427         u32 write_actual;
 428         struct list_head rx_free;
 429         struct list_head rx_used;
 430         int need_update;
 431         struct iwl_rb_status *rb_stts;
 432         dma_addr_t rb_stts_dma;
 433         spinlock_t lock;
 434 };
 435
 436 #define IWL_SUPPORTED_RATES_IE_LEN         8
 437
 438 #define MAX_TID_COUNT        9
 439
 440 #define IWL_INVALID_RATE     0xFF
 441 #define IWL_INVALID_VALUE    -1
 442
 443 /**
 444  * struct iwl_ht_agg -- aggregation status while waiting for block-ack
 445  * @txq_id: Tx queue used for Tx attempt
 446  * @frame_count: # frames attempted by Tx command
 447  * @wait_for_ba: Expect block-ack before next Tx reply
 448  * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
 449  * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
 450  * @bitmap1: High order, one bit for each frame pending ACK in Tx window
 451  * @rate_n_flags: Rate at which Tx was attempted
 452  *
 453  * If REPLY_TX indicates that aggregation was attempted, driver must wait
 454  * for block ack (REPLY_COMPRESSED_BA).  This struct stores tx reply info
 455  * until block ack arrives.
 456  */
 457 struct iwl_ht_agg {
 458         u16 txq_id;
 459         u16 frame_count;
 460         u16 wait_for_ba;
 461         u16 start_idx;
 462         u64 bitmap;
 463         u32 rate_n_flags;
 464 #define IWL_AGG_OFF 0
 465 #define IWL_AGG_ON 1
 466 #define IWL_EMPTYING_HW_QUEUE_ADDBA 2
 467 #define IWL_EMPTYING_HW_QUEUE_DELBA 3
 468         u8 state;
 469 };
 470
 471
 472 struct iwl_tid_data {
 473         u16 seq_number;
 474         u16 tfds_in_queue;
 475         struct iwl_ht_agg agg;
 476 };
 477
 478 struct iwl_hw_key {
 479         enum ieee80211_key_alg alg;
 480         int keylen;
 481         u8 keyidx;
 482         u8 key[32];
 483 };
 484
 485 union iwl_ht_rate_supp {
 486         u16 rates;
 487         struct {
 488                 u8 siso_rate;
 489                 u8 mimo_rate;
 490         };
 491 };
 492
 493 #define CFG_HT_RX_AMPDU_FACTOR_DEF  (0x3)
 494
 495 /*
 496  * Maximal MPDU density for TX aggregation
 497  * 4 - 2us density
 498  * 5 - 4us density
 499  * 6 - 8us density
 500  * 7 - 16us density
 501  */
 502 #define CFG_HT_MPDU_DENSITY_4USEC   (0x5)
 503 #define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_4USEC
 504
 505 struct iwl_ht_info {
 506         /* self configuration data */
 507         u8 is_ht;
 508         u8 supported_chan_width;
 509         u8 sm_ps;
 510         u8 is_green_field;
 511         u8 sgf;                 /* HT_SHORT_GI_* short guard interval */
 512         u8 max_amsdu_size;
 513         u8 ampdu_factor;
 514         u8 mpdu_density;
 515         struct ieee80211_mcs_info mcs;
 516         /* BSS related data */
 517         u8 extension_chan_offset;
 518         u8 tx_chan_width;
 519         u8 ht_protection;
 520         u8 non_GF_STA_present;
 521 };
 522
 523 union iwl_qos_capabity {
 524         struct {
 525                 u8 edca_count:4;        /* bit 0-3 */
 526                 u8 q_ack:1;             /* bit 4 */
 527                 u8 queue_request:1;     /* bit 5 */
 528                 u8 txop_request:1;      /* bit 6 */
 529                 u8 reserved:1;          /* bit 7 */
 530         } q_AP;
 531         struct {
 532                 u8 acvo_APSD:1;         /* bit 0 */
 533                 u8 acvi_APSD:1;         /* bit 1 */
 534                 u8 ac_bk_APSD:1;        /* bit 2 */
 535                 u8 ac_be_APSD:1;        /* bit 3 */
 536                 u8 q_ack:1;             /* bit 4 */
 537                 u8 max_len:2;           /* bit 5-6 */
 538                 u8 more_data_ack:1;     /* bit 7 */
 539         } q_STA;
 540         u8 val;
 541 };
 542
 543 /* QoS structures */
 544 struct iwl_qos_info {
 545         int qos_active;
 546         union iwl_qos_capabity qos_cap;
 547         struct iwl_qosparam_cmd def_qos_parm;
 548 };
 549
 550 #define STA_PS_STATUS_WAKE             0
 551 #define STA_PS_STATUS_SLEEP            1
 552
 553
 554 struct iwl3945_station_entry {
 555         struct iwl3945_addsta_cmd sta;
 556         struct iwl_tid_data tid[MAX_TID_COUNT];
 557         u8 used;
 558         u8 ps_status;
 559         struct iwl_hw_key keyinfo;
 560 };
 561
 562 struct iwl_station_entry {
 563         struct iwl_addsta_cmd sta;
 564         struct iwl_tid_data tid[MAX_TID_COUNT];
 565         u8 used;
 566         u8 ps_status;
 567         struct iwl_hw_key keyinfo;
 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
 633
 634 #define KELVIN_TO_CELSIUS(x) ((x)-273)
 635 #define CELSIUS_TO_KELVIN(x) ((x)+273)
 636
 637
 638 /**
 639  * struct iwl_hw_params
 640  * @max_txq_num: Max # Tx queues supported
 641  * @dma_chnl_num: Number of Tx DMA/FIFO channels
 642  * @scd_bc_tbls_size: size of scheduler byte count tables
 643  * @tfd_size: TFD size
 644  * @tx/rx_chains_num: Number of TX/RX chains
 645  * @valid_tx/rx_ant: usable antennas
 646  * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
 647  * @max_rxq_log: Log-base-2 of max_rxq_size
 648  * @rx_buf_size: Rx buffer size
 649  * @rx_wrt_ptr_reg: FH{39}_RSCSR_CHNL0_WPTR
 650  * @max_stations:
 651  * @bcast_sta_id:
 652  * @ht40_channel: is 40MHz width possible in band 2.4
 653  * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ)
 654  * @sw_crypto: 0 for hw, 1 for sw
 655  * @max_xxx_size: for ucode uses
 656  * @ct_kill_threshold: temperature threshold
 657  * @calib_init_cfg: setup initial calibrations for the hw
 658  * @struct iwl_sensitivity_ranges: range of sensitivity values
 659  */
 660 struct iwl_hw_params {
 661         u8 max_txq_num;
 662         u8 dma_chnl_num;
 663         u16 scd_bc_tbls_size;
 664         u32 tfd_size;
 665         u8  tx_chains_num;
 666         u8  rx_chains_num;
 667         u8  valid_tx_ant;
 668         u8  valid_rx_ant;
 669         u16 max_rxq_size;
 670         u16 max_rxq_log;
 671         u32 rx_buf_size;
 672         u32 rx_wrt_ptr_reg;
 673         u32 max_pkt_size;
 674         u8  max_stations;
 675         u8  bcast_sta_id;
 676         u8  ht40_channel;
 677         u8  max_beacon_itrvl;   /* in 1024 ms */
 678         u32 max_inst_size;
 679         u32 max_data_size;
 680         u32 max_bsm_size;
 681         u32 ct_kill_threshold; /* value in hw-dependent units */
 682         u32 ct_kill_exit_threshold; /* value in hw-dependent units */
 683                                     /* for 1000, 6000 series and up */
 684         u32 calib_init_cfg;
 685         const struct iwl_sensitivity_ranges *sens;
 686 };
 687
 688
 689 /******************************************************************************
 690  *
 691  * Functions implemented in core module which are forward declared here
 692  * for use by iwl-[4-5].c
 693  *
 694  * NOTE:  The implementation of these functions are not hardware specific
 695  * which is why they are in the core module files.
 696  *
 697  * Naming convention --
 698  * iwl_         <-- Is part of iwlwifi
 699  * iwlXXXX_     <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
 700  * iwl4965_bg_      <-- Called from work queue context
 701  * iwl4965_mac_     <-- mac80211 callback
 702  *
 703  ****************************************************************************/
 704 extern void iwl_update_chain_flags(struct iwl_priv *priv);
 705 extern int iwl_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src);
 706 extern const u8 iwl_bcast_addr[ETH_ALEN];
 707 extern int iwl_rxq_stop(struct iwl_priv *priv);
 708 extern void iwl_txq_ctx_stop(struct iwl_priv *priv);
 709 extern int iwl_queue_space(const struct iwl_queue *q);
 710 static inline int iwl_queue_used(const struct iwl_queue *q, int i)
 711 {
 712         return q->write_ptr > q->read_ptr ?
 713                 (i >= q->read_ptr && i < q->write_ptr) :
 714                 !(i < q->read_ptr && i >= q->write_ptr);
 715 }
 716
 717
 718 static inline u8 get_cmd_index(struct iwl_queue *q, u32 index, int is_huge)
 719 {
 720         /* This is for scan command, the big buffer at end of command array */
 721         if (is_huge)
 722                 return q->n_window;     /* must be power of 2 */
 723
 724         /* Otherwise, use normal size buffers */
 725         return index & (q->n_window - 1);
 726 }
 727
 728
 729 struct iwl_dma_ptr {
 730         dma_addr_t dma;
 731         void *addr;
 732         size_t size;
 733 };
 734
 735 #define HT_SHORT_GI_20MHZ       (1 << 0)
 736 #define HT_SHORT_GI_40MHZ       (1 << 1)
 737
 738 #define IWL_CHANNEL_WIDTH_20MHZ   0
 739 #define IWL_CHANNEL_WIDTH_40MHZ   1
 740
 741 #define IWL_OPERATION_MODE_AUTO     0
 742 #define IWL_OPERATION_MODE_HT_ONLY  1
 743 #define IWL_OPERATION_MODE_MIXED    2
 744 #define IWL_OPERATION_MODE_20MHZ    3
 745
 746 #define IWL_TX_CRC_SIZE 4
 747 #define IWL_TX_DELIMITER_SIZE 4
 748
 749 #define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
 750
 751 /* Sensitivity and chain noise calibration */
 752 #define INITIALIZATION_VALUE            0xFFFF
 753 #define CAL_NUM_OF_BEACONS              20
 754 #define MAXIMUM_ALLOWED_PATHLOSS        15
 755
 756 #define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
 757
 758 #define MAX_FA_OFDM  50
 759 #define MIN_FA_OFDM  5
 760 #define MAX_FA_CCK   50
 761 #define MIN_FA_CCK   5
 762
 763 #define AUTO_CORR_STEP_OFDM       1
 764
 765 #define AUTO_CORR_STEP_CCK     3
 766 #define AUTO_CORR_MAX_TH_CCK   160
 767
 768 #define NRG_DIFF               2
 769 #define NRG_STEP_CCK           2
 770 #define NRG_MARGIN             8
 771 #define MAX_NUMBER_CCK_NO_FA 100
 772
 773 #define AUTO_CORR_CCK_MIN_VAL_DEF    (125)
 774
 775 #define CHAIN_A             0
 776 #define CHAIN_B             1
 777 #define CHAIN_C             2
 778 #define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
 779 #define ALL_BAND_FILTER                 0xFF00
 780 #define IN_BAND_FILTER                  0xFF
 781 #define MIN_AVERAGE_NOISE_MAX_VALUE     0xFFFFFFFF
 782
 783 #define NRG_NUM_PREV_STAT_L     20
 784 #define NUM_RX_CHAINS           3
 785
 786 enum iwl4965_false_alarm_state {
 787         IWL_FA_TOO_MANY = 0,
 788         IWL_FA_TOO_FEW = 1,
 789         IWL_FA_GOOD_RANGE = 2,
 790 };
 791
 792 enum iwl4965_chain_noise_state {
 793         IWL_CHAIN_NOISE_ALIVE = 0,  /* must be 0 */
 794         IWL_CHAIN_NOISE_ACCUMULATE,
 795         IWL_CHAIN_NOISE_CALIBRATED,
 796         IWL_CHAIN_NOISE_DONE,
 797 };
 798
 799 enum iwl4965_calib_enabled_state {
 800         IWL_CALIB_DISABLED = 0,  /* must be 0 */
 801         IWL_CALIB_ENABLED = 1,
 802 };
 803
 804
 805 /*
 806  * enum iwl_calib
 807  * defines the order in which results of initial calibrations
 808  * should be sent to the runtime uCode
 809  */
 810 enum iwl_calib {
 811         IWL_CALIB_XTAL,
 812         IWL_CALIB_DC,
 813         IWL_CALIB_LO,
 814         IWL_CALIB_TX_IQ,
 815         IWL_CALIB_TX_IQ_PERD,
 816         IWL_CALIB_BASE_BAND,
 817         IWL_CALIB_MAX
 818 };
 819
 820 /* Opaque calibration results */
 821 struct iwl_calib_result {
 822         void *buf;
 823         size_t buf_len;
 824 };
 825
 826 #define UCODE_ALIVE_TIMEOUT     (5 * HZ)
 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
 861 /* Chain noise (differential Rx gain) calib data */
 862 struct iwl_chain_noise_data {
 863         u32 active_chains;
 864         u32 chain_noise_a;
 865         u32 chain_noise_b;
 866         u32 chain_noise_c;
 867         u32 chain_signal_a;
 868         u32 chain_signal_b;
 869         u32 chain_signal_c;
 870         u16 beacon_count;
 871         u8 disconn_array[NUM_RX_CHAINS];
 872         u8 delta_gain_code[NUM_RX_CHAINS];
 873         u8 radio_write;
 874         u8 state;
 875 };
 876
 877 #define EEPROM_SEM_TIMEOUT 10           /* milliseconds */
 878 #define EEPROM_SEM_RETRY_LIMIT 1000     /* number of attempts (not time) */
 879
 880 #define IWL_TRAFFIC_ENTRIES     (256)
 881 #define IWL_TRAFFIC_ENTRY_SIZE  (64)
 882
 883 enum {
 884         MEASUREMENT_READY = (1 << 0),
 885         MEASUREMENT_ACTIVE = (1 << 1),
 886 };
 887
 888 enum iwl_nvm_type {
 889         NVM_DEVICE_TYPE_EEPROM = 0,
 890         NVM_DEVICE_TYPE_OTP,
 891 };
 892
 893
 894 /**
 895  * enum iwl_pa_type - Power Amplifier type
 896  * @IWL_PA_SYSTEM:  based on uCode configuration
 897  * @IWL_PA_HYBRID: use both Internal and external PA
 898  * @IWL_PA_INTERNAL: use Internal only
 899  */
 900 enum iwl_pa_type {
 901         IWL_PA_SYSTEM = 0,
 902         IWL_PA_HYBRID = 1,
 903         IWL_PA_INTERNAL = 2,
 904 };
 905
 906 /* interrupt statistics */
 907 struct isr_statistics {
 908         u32 hw;
 909         u32 sw;
 910         u32 sw_err;
 911         u32 sch;
 912         u32 alive;
 913         u32 rfkill;
 914         u32 ctkill;
 915         u32 wakeup;
 916         u32 rx;
 917         u32 rx_handlers[REPLY_MAX];
 918         u32 tx;
 919         u32 unhandled;
 920 };
 921
 922 #define IWL_MAX_NUM_QUEUES      20 /* FIXME: do dynamic allocation */
 923
 924 struct iwl_priv {
 925
 926         /* ieee device used by generic ieee processing code */
 927         struct ieee80211_hw *hw;
 928         struct ieee80211_channel *ieee_channels;
 929         struct ieee80211_rate *ieee_rates;
 930         struct iwl_cfg *cfg;
 931
 932         /* temporary frame storage list */
 933         struct list_head free_frames;
 934         int frames_count;
 935
 936         enum ieee80211_band band;
 937         int alloc_rxb_skb;
 938
 939         void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
 940                                        struct iwl_rx_mem_buffer *rxb);
 941
 942         struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
 943
 944 #if defined(CONFIG_IWLWIFI_SPECTRUM_MEASUREMENT) || defined(CONFIG_IWL3945_SPECTRUM_MEASUREMENT)
 945         /* spectrum measurement report caching */
 946         struct iwl_spectrum_notification measure_report;
 947         u8 measurement_status;
 948 #endif
 949         /* ucode beacon time */
 950         u32 ucode_beacon_time;
 951
 952         /* we allocate array of iwl4965_channel_info for NIC's valid channels.
 953          *    Access via channel # using indirect index array */
 954         struct iwl_channel_info *channel_info;  /* channel info array */
 955         u8 channel_count;       /* # of channels */
 956
 957         /* each calibration channel group in the EEPROM has a derived
 958          * clip setting for each rate. 3945 only.*/
 959         const struct iwl3945_clip_group clip39_groups[5];
 960
 961         /* thermal calibration */
 962         s32 temperature;        /* degrees Kelvin */
 963         s32 last_temperature;
 964
 965         /* init calibration results */
 966         struct iwl_calib_result calib_results[IWL_CALIB_MAX];
 967
 968         /* Scan related variables */
 969         unsigned long last_scan_jiffies;
 970         unsigned long next_scan_jiffies;
 971         unsigned long scan_start;
 972         unsigned long scan_pass_start;
 973         unsigned long scan_start_tsf;
 974         void *scan;
 975         int scan_bands;
 976         struct cfg80211_scan_request *scan_request;
 977         u8 scan_tx_ant[IEEE80211_NUM_BANDS];
 978         u8 mgmt_tx_ant;
 979
 980         /* spinlock */
 981         spinlock_t lock;        /* protect general shared data */
 982         spinlock_t hcmd_lock;   /* protect hcmd */
 983         spinlock_t reg_lock;    /* protect hw register access */
 984         struct mutex mutex;
 985
 986         /* basic pci-network driver stuff */
 987         struct pci_dev *pci_dev;
 988
 989         /* pci hardware address support */
 990         void __iomem *hw_base;
 991         u32  hw_rev;
 992         u32  hw_wa_rev;
 993         u8   rev_id;
 994
 995         /* uCode images, save to reload in case of failure */
 996         u32 ucode_ver;                  /* version of ucode, copy of
 997                                            iwl_ucode.ver */
 998         struct fw_desc ucode_code;      /* runtime inst */
 999         struct fw_desc ucode_data;      /* runtime data original */
1000         struct fw_desc ucode_data_backup;       /* runtime data save/restore */
1001         struct fw_desc ucode_init;      /* initialization inst */
1002         struct fw_desc ucode_init_data; /* initialization data */
1003         struct fw_desc ucode_boot;      /* bootstrap inst */
1004         enum ucode_type ucode_type;
1005         u8 ucode_write_complete;        /* the image write is complete */
1006
1007
1008         struct iwl_rxon_time_cmd rxon_timing;
1009
1010         /* We declare this const so it can only be
1011          * changed via explicit cast within the
1012          * routines that actually update the physical
1013          * hardware */
1014         const struct iwl_rxon_cmd active_rxon;
1015         struct iwl_rxon_cmd staging_rxon;
1016
1017         struct iwl_rxon_cmd recovery_rxon;
1018
1019         /* 1st responses from initialize and runtime uCode images.
1020          * 4965's initialize alive response contains some calibration data. */
1021         struct iwl_init_alive_resp card_alive_init;
1022         struct iwl_alive_resp card_alive;
1023
1024 #ifdef CONFIG_IWLWIFI_LEDS
1025         unsigned long last_blink_time;
1026         u8 last_blink_rate;
1027         u8 allow_blinking;
1028         u64 led_tpt;
1029         struct iwl_led led[IWL_LED_TRG_MAX];
1030         unsigned int rxtxpackets;
1031 #endif
1032         u16 active_rate;
1033         u16 active_rate_basic;
1034
1035         u8 assoc_station_added;
1036         u8 start_calib;
1037         struct iwl_sensitivity_data sensitivity_data;
1038         struct iwl_chain_noise_data chain_noise_data;
1039         __le16 sensitivity_tbl[HD_TABLE_SIZE];
1040
1041         struct iwl_ht_info current_ht_config;
1042         u8 last_phy_res[100];
1043
1044         /* Rate scaling data */
1045         s8 data_retry_limit;
1046         u8 retry_rate;
1047
1048         wait_queue_head_t wait_command_queue;
1049
1050         int activity_timer_active;
1051
1052         /* Rx and Tx DMA processing queues */
1053         struct iwl_rx_queue rxq;
1054         struct iwl_tx_queue txq[IWL_MAX_NUM_QUEUES];
1055         unsigned long txq_ctx_active_msk;
1056         struct iwl_dma_ptr  kw; /* keep warm address */
1057         struct iwl_dma_ptr  scd_bc_tbls;
1058
1059         u32 scd_base_addr;      /* scheduler sram base address */
1060
1061         unsigned long status;
1062
1063         int last_rx_rssi;       /* From Rx packet statistics */
1064         int last_rx_noise;      /* From beacon statistics */
1065
1066         /* counts mgmt, ctl, and data packets */
1067         struct traffic_stats {
1068                 u32 cnt;
1069                 u64 bytes;
1070         } tx_stats[3], rx_stats[3];
1071
1072         /* counts interrupts */
1073         struct isr_statistics isr_stats;
1074
1075         struct iwl_power_mgr power_data;
1076
1077         struct iwl_notif_statistics statistics;
1078         unsigned long last_statistics_time;
1079
1080         /* context information */
1081         u16 rates_mask;
1082
1083         u32 power_mode;
1084         u8 bssid[ETH_ALEN];
1085         u16 rts_threshold;
1086         u8 mac_addr[ETH_ALEN];
1087
1088         /*station table variables */
1089         spinlock_t sta_lock;
1090         int num_stations;
1091         struct iwl_station_entry stations[IWL_STATION_COUNT];
1092         struct iwl_wep_key wep_keys[WEP_KEYS_MAX];
1093         u8 default_wep_key;
1094         u8 key_mapping_key;
1095         unsigned long ucode_key_table;
1096
1097         /* queue refcounts */
1098 #define IWL_MAX_HW_QUEUES       32
1099         unsigned long queue_stopped[BITS_TO_LONGS(IWL_MAX_HW_QUEUES)];
1100         /* for each AC */
1101         atomic_t queue_stop_count[4];
1102
1103         /* Indication if ieee80211_ops->open has been called */
1104         u8 is_open;
1105
1106         u8 mac80211_registered;
1107
1108         /* Rx'd packet timing information */
1109         u32 last_beacon_time;
1110         u64 last_tsf;
1111
1112         /* eeprom */
1113         u8 *eeprom;
1114         int    nvm_device_type;
1115         struct iwl_eeprom_calib_info *calib_info;
1116
1117         enum nl80211_iftype iw_mode;
1118
1119         struct sk_buff *ibss_beacon;
1120
1121         /* Last Rx'd beacon timestamp */
1122         u64 timestamp;
1123         u16 beacon_int;
1124         struct ieee80211_vif *vif;
1125
1126         /*Added for 3945 */
1127         void *shared_virt;
1128         dma_addr_t shared_phys;
1129         /*End*/
1130         struct iwl_hw_params hw_params;
1131
1132         /* INT ICT Table */
1133         u32 *ict_tbl;
1134         dma_addr_t ict_tbl_dma;
1135         dma_addr_t aligned_ict_tbl_dma;
1136         int ict_index;
1137         void *ict_tbl_vir;
1138         u32 inta;
1139         bool use_ict;
1140
1141         u32 inta_mask;
1142         /* Current association information needed to configure the
1143          * hardware */
1144         u16 assoc_id;
1145         u16 assoc_capability;
1146
1147         struct iwl_qos_info qos_data;
1148
1149         struct workqueue_struct *workqueue;
1150
1151         struct work_struct up;
1152         struct work_struct restart;
1153         struct work_struct calibrated_work;
1154         struct work_struct scan_completed;
1155         struct work_struct rx_replenish;
1156         struct work_struct abort_scan;
1157         struct work_struct update_link_led;
1158         struct work_struct auth_work;
1159         struct work_struct report_work;
1160         struct work_struct request_scan;
1161         struct work_struct beacon_update;
1162
1163         struct tasklet_struct irq_tasklet;
1164
1165         struct delayed_work init_alive_start;
1166         struct delayed_work alive_start;
1167         struct delayed_work scan_check;
1168
1169         /*For 3945 only*/
1170         struct delayed_work thermal_periodic;
1171         struct delayed_work rfkill_poll;
1172
1173         /* TX Power */
1174         s8 tx_power_user_lmt;
1175         s8 tx_power_channel_lmt;
1176
1177
1178 #ifdef CONFIG_IWLWIFI_DEBUG
1179         /* debugging info */
1180         u32 debug_level; /* per device debugging will override global
1181                             iwl_debug_level if set */
1182         u32 framecnt_to_us;
1183         atomic_t restrict_refcnt;
1184         bool disable_ht40;
1185 #ifdef CONFIG_IWLWIFI_DEBUGFS
1186         /* debugfs */
1187         u16 tx_traffic_idx;
1188         u16 rx_traffic_idx;
1189         u8 *tx_traffic;
1190         u8 *rx_traffic;
1191         struct iwl_debugfs *dbgfs;
1192 #endif /* CONFIG_IWLWIFI_DEBUGFS */
1193 #endif /* CONFIG_IWLWIFI_DEBUG */
1194
1195         struct work_struct txpower_work;
1196         u32 disable_sens_cal;
1197         u32 disable_chain_noise_cal;
1198         u32 disable_tx_power_cal;
1199         struct work_struct run_time_calib_work;
1200         struct timer_list statistics_periodic;
1201         bool hw_ready;
1202         /*For 3945*/
1203 #define IWL_DEFAULT_TX_POWER 0x0F
1204
1205         struct iwl3945_notif_statistics statistics_39;
1206
1207         u32 sta_supp_rates;
1208 }; /*iwl_priv */
1209
1210 static inline void iwl_txq_ctx_activate(struct iwl_priv *priv, int txq_id)
1211 {
1212         set_bit(txq_id, &priv->txq_ctx_active_msk);
1213 }
1214
1215 static inline void iwl_txq_ctx_deactivate(struct iwl_priv *priv, int txq_id)
1216 {
1217         clear_bit(txq_id, &priv->txq_ctx_active_msk);
1218 }
1219
1220 #ifdef CONFIG_IWLWIFI_DEBUG
1221 const char *iwl_get_tx_fail_reason(u32 status);
1222 /*
1223  * iwl_get_debug_level: Return active debug level for device
1224  *
1225  * Using sysfs it is possible to set per device debug level. This debug
1226  * level will be used if set, otherwise the global debug level which can be
1227  * set via module parameter is used.
1228  */
1229 static inline u32 iwl_get_debug_level(struct iwl_priv *priv)
1230 {
1231         if (priv->debug_level)
1232                 return priv->debug_level;
1233         else
1234                 return iwl_debug_level;
1235 }
1236 #else
1237 static inline const char *iwl_get_tx_fail_reason(u32 status) { return ""; }
1238
1239 static inline u32 iwl_get_debug_level(struct iwl_priv *priv)
1240 {
1241         return iwl_debug_level;
1242 }
1243 #endif
1244
1245
1246 static inline struct ieee80211_hdr *iwl_tx_queue_get_hdr(struct iwl_priv *priv,
1247                                                          int txq_id, int idx)
1248 {
1249         if (priv->txq[txq_id].txb[idx].skb[0])
1250                 return (struct ieee80211_hdr *)priv->txq[txq_id].
1251                                 txb[idx].skb[0]->data;
1252         return NULL;
1253 }
1254
1255
1256 static inline int iwl_is_associated(struct iwl_priv *priv)
1257 {
1258         return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
1259 }
1260
1261 static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
1262 {
1263         if (ch_info == NULL)
1264                 return 0;
1265         return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
1266 }
1267
1268 static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
1269 {
1270         return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
1271 }
1272
1273 static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
1274 {
1275         return ch_info->band == IEEE80211_BAND_5GHZ;
1276 }
1277
1278 static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
1279 {
1280         return ch_info->band == IEEE80211_BAND_2GHZ;
1281 }
1282
1283 static inline int is_channel_passive(const struct iwl_channel_info *ch)
1284 {
1285         return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1286 }
1287
1288 static inline int is_channel_ibss(const struct iwl_channel_info *ch)
1289 {
1290         return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1291 }
1292
1293 #endif                          /* __iwl_dev_h__ */