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

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2003 - 2009 Intel Corporation. All rights reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of version 2 of the GNU General Public License as
   7  * published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12  * more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along with
  15  * this program; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
  17  *
  18  * The full GNU General Public License is included in this distribution in the
  19  * file called LICENSE.
  20  *
  21  * Contact Information:
  22  *  Intel Linux Wireless <ilw@linux.intel.com>
  23  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  24  *
  25  *****************************************************************************/
  26 /*
  27  * Please use this file (iwl-dev.h) for driver implementation definitions.
  28  * Please use iwl-commands.h for uCode API definitions.
  29  * Please use iwl-4965-hw.h for hardware-related definitions.
  30  */
  31
  32 #ifndef __iwl_dev_h__
  33 #define __iwl_dev_h__
  34
  35 #include <linux/pci.h> /* for struct pci_device_id */
  36 #include <linux/kernel.h>
  37 #include <net/ieee80211_radiotap.h>
  38
  39 #include "iwl-eeprom.h"
  40 #include "iwl-csr.h"
  41 #include "iwl-prph.h"
  42 #include "iwl-fh.h"
  43 #include "iwl-debug.h"
  44 #include "iwl-4965-hw.h"
  45 #include "iwl-3945-hw.h"
  46 #include "iwl-led.h"
  47 #include "iwl-power.h"
  48 #include "iwl-agn-rs.h"
  49
  50 /* configuration for the iwl4965 */
  51 extern struct iwl_cfg iwl4965_agn_cfg;
  52 extern struct iwl_cfg iwl5300_agn_cfg;
  53 extern struct iwl_cfg iwl5100_agn_cfg;
  54 extern struct iwl_cfg iwl5350_agn_cfg;
  55 extern struct iwl_cfg iwl5100_bg_cfg;
  56 extern struct iwl_cfg iwl5100_abg_cfg;
  57 extern struct iwl_cfg iwl5150_agn_cfg;
  58 extern struct iwl_cfg iwl6000h_2agn_cfg;
  59 extern struct iwl_cfg iwl6000h_2abg_cfg;
  60 extern struct iwl_cfg iwl6000h_2bg_cfg;
  61 extern struct iwl_cfg iwl6000i_2agn_cfg;
  62 extern struct iwl_cfg iwl6000i_2abg_cfg;
  63 extern struct iwl_cfg iwl6000i_2bg_cfg;
  64 extern struct iwl_cfg iwl6000_3agn_cfg;
  65 extern struct iwl_cfg iwl6050_2agn_cfg;
  66 extern struct iwl_cfg iwl6050_2abg_cfg;
  67 extern struct iwl_cfg iwl6050_3agn_cfg;
  68 extern struct iwl_cfg iwl1000_bgn_cfg;
  69 extern struct iwl_cfg iwl1000_bg_cfg;
  70
  71 struct iwl_tx_queue;
  72
  73 /* shared structures from iwl-5000.c */
  74 extern struct iwl_mod_params iwl50_mod_params;
  75 extern struct iwl_ucode_ops iwl5000_ucode;
  76 extern struct iwl_lib_ops iwl5000_lib;
  77 extern struct iwl_hcmd_ops iwl5000_hcmd;
  78 extern struct iwl_hcmd_utils_ops iwl5000_hcmd_utils;
  79
  80 /* shared functions from iwl-5000.c */
  81 extern u16 iwl5000_get_hcmd_size(u8 cmd_id, u16 len);
  82 extern u16 iwl5000_build_addsta_hcmd(const struct iwl_addsta_cmd *cmd,
  83                                      u8 *data);
  84 extern void iwl5000_rts_tx_cmd_flag(struct ieee80211_tx_info *info,
  85                                     __le32 *tx_flags);
  86 extern int iwl5000_calc_rssi(struct iwl_priv *priv,
  87                              struct iwl_rx_phy_res *rx_resp);
  88 extern void iwl5000_nic_config(struct iwl_priv *priv);
  89 extern u16 iwl5000_eeprom_calib_version(struct iwl_priv *priv);
  90 extern const u8 *iwl5000_eeprom_query_addr(const struct iwl_priv *priv,
  91                                     size_t offset);
  92 extern void iwl5000_txq_update_byte_cnt_tbl(struct iwl_priv *priv,
  93                                             struct iwl_tx_queue *txq,
  94                                             u16 byte_cnt);
  95 extern void iwl5000_txq_inval_byte_cnt_tbl(struct iwl_priv *priv,
  96                                     struct iwl_tx_queue *txq);
  97 extern int iwl5000_load_ucode(struct iwl_priv *priv);
  98 extern void iwl5000_init_alive_start(struct iwl_priv *priv);
  99 extern int iwl5000_alive_notify(struct iwl_priv *priv);
 100 extern int iwl5000_hw_set_hw_params(struct iwl_priv *priv);
 101 extern int iwl5000_txq_agg_enable(struct iwl_priv *priv, int txq_id,
 102                            int tx_fifo, int sta_id, int tid, u16 ssn_idx);
 103 extern int iwl5000_txq_agg_disable(struct iwl_priv *priv, u16 txq_id,
 104                             u16 ssn_idx, u8 tx_fifo);
 105 extern void iwl5000_txq_set_sched(struct iwl_priv *priv, u32 mask);
 106 extern void iwl5000_setup_deferred_work(struct iwl_priv *priv);
 107 extern void iwl5000_rx_handler_setup(struct iwl_priv *priv);
 108 extern int iwl5000_hw_valid_rtc_data_addr(u32 addr);
 109 extern int iwl5000_send_tx_power(struct iwl_priv *priv);
 110 extern void iwl5000_temperature(struct iwl_priv *priv);
 111
 112 /* CT-KILL constants */
 113 #define CT_KILL_THRESHOLD_LEGACY   110 /* in Celsius */
 114 #define CT_KILL_THRESHOLD          114 /* in Celsius */
 115 #define CT_KILL_EXIT_THRESHOLD     95  /* in Celsius */
 116
 117 /* Default noise level to report when noise measurement is not available.
 118  *   This may be because we're:
 119  *   1)  Not associated (4965, no beacon statistics being sent to driver)
 120  *   2)  Scanning (noise measurement does not apply to associated channel)
 121  *   3)  Receiving CCK (3945 delivers noise info only for OFDM frames)
 122  * Use default noise value of -127 ... this is below the range of measurable
 123  *   Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
 124  *   Also, -127 works better than 0 when averaging frames with/without
 125  *   noise info (e.g. averaging might be done in app); measured dBm values are
 126  *   always negative ... using a negative value as the default keeps all
 127  *   averages within an s8's (used in some apps) range of negative values. */
 128 #define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
 129
 130 /*
 131  * RTS threshold here is total size [2347] minus 4 FCS bytes
 132  * Per spec:
 133  *   a value of 0 means RTS on all data/management packets
 134  *   a value > max MSDU size means no RTS
 135  * else RTS for data/management frames where MPDU is larger
 136  *   than RTS value.
 137  */
 138 #define DEFAULT_RTS_THRESHOLD     2347U
 139 #define MIN_RTS_THRESHOLD         0U
 140 #define MAX_RTS_THRESHOLD         2347U
 141 #define MAX_MSDU_SIZE             2304U
 142 #define MAX_MPDU_SIZE             2346U
 143 #define DEFAULT_BEACON_INTERVAL   100U
 144 #define DEFAULT_SHORT_RETRY_LIMIT 7U
 145 #define DEFAULT_LONG_RETRY_LIMIT  4U
 146
 147 struct iwl_rx_mem_buffer {
 148         dma_addr_t page_dma;
 149         struct page *page;
 150         struct list_head list;
 151 };
 152
 153 #define rxb_addr(r) page_address(r->page)
 154
 155 /* defined below */
 156 struct iwl_device_cmd;
 157
 158 struct iwl_cmd_meta {
 159         /* only for SYNC commands, iff the reply skb is wanted */
 160         struct iwl_host_cmd *source;
 161         /*
 162          * only for ASYNC commands
 163          * (which is somewhat stupid -- look at iwl-sta.c for instance
 164          * which duplicates a bunch of code because the callback isn't
 165          * invoked for SYNC commands, if it were and its result passed
 166          * through it would be simpler...)
 167          */
 168         void (*callback)(struct iwl_priv *priv,
 169                          struct iwl_device_cmd *cmd,
 170                          struct iwl_rx_packet *pkt);
 171
 172         /* The CMD_SIZE_HUGE flag bit indicates that the command
 173          * structure is stored at the end of the shared queue memory. */
 174         u32 flags;
 175
 176         DECLARE_PCI_UNMAP_ADDR(mapping)
 177         DECLARE_PCI_UNMAP_LEN(len)
 178 };
 179
 180 /*
 181  * Generic queue structure
 182  *
 183  * Contains common data for Rx and Tx queues
 184  */
 185 struct iwl_queue {
 186         int n_bd;              /* number of BDs in this queue */
 187         int write_ptr;       /* 1-st empty entry (index) host_w*/
 188         int read_ptr;         /* last used entry (index) host_r*/
 189         dma_addr_t dma_addr;   /* physical addr for BD's */
 190         int n_window;          /* safe queue window */
 191         u32 id;
 192         int low_mark;          /* low watermark, resume queue if free
 193                                 * space more than this */
 194         int high_mark;         /* high watermark, stop queue if free
 195                                 * space less than this */
 196 } __attribute__ ((packed));
 197
 198 /* One for each TFD */
 199 struct iwl_tx_info {
 200         struct sk_buff *skb[IWL_NUM_OF_TBS - 1];
 201 };
 202
 203 /**
 204  * struct iwl_tx_queue - Tx Queue for DMA
 205  * @q: generic Rx/Tx queue descriptor
 206  * @bd: base of circular buffer of TFDs
 207  * @cmd: array of command/TX buffer pointers
 208  * @meta: array of meta data for each command/tx buffer
 209  * @dma_addr_cmd: physical address of cmd/tx buffer array
 210  * @txb: array of per-TFD driver data
 211  * @need_update: indicates need to update read/write index
 212  * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
 213  *
 214  * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
 215  * descriptors) and required locking structures.
 216  */
 217 #define TFD_TX_CMD_SLOTS 256
 218 #define TFD_CMD_SLOTS 32
 219
 220 struct iwl_tx_queue {
 221         struct iwl_queue q;
 222         void *tfds;
 223         struct iwl_device_cmd **cmd;
 224         struct iwl_cmd_meta *meta;
 225         struct iwl_tx_info *txb;
 226         u8 need_update;
 227         u8 sched_retry;
 228         u8 active;
 229         u8 swq_id;
 230 };
 231
 232 #define IWL_NUM_SCAN_RATES         (2)
 233
 234 struct iwl4965_channel_tgd_info {
 235         u8 type;
 236         s8 max_power;
 237 };
 238
 239 struct iwl4965_channel_tgh_info {
 240         s64 last_radar_time;
 241 };
 242
 243 #define IWL4965_MAX_RATE (33)
 244
 245 struct iwl3945_clip_group {
 246         /* maximum power level to prevent clipping for each rate, derived by
 247          *   us from this band's saturation power in EEPROM */
 248         const s8 clip_powers[IWL_MAX_RATES];
 249 };
 250
 251 /* current Tx power values to use, one for each rate for each channel.
 252  * requested power is limited by:
 253  * -- regulatory EEPROM limits for this channel
 254  * -- hardware capabilities (clip-powers)
 255  * -- spectrum management
 256  * -- user preference (e.g. iwconfig)
 257  * when requested power is set, base power index must also be set. */
 258 struct iwl3945_channel_power_info {
 259         struct iwl3945_tx_power tpc;    /* actual radio and DSP gain settings */
 260         s8 power_table_index;   /* actual (compenst'd) index into gain table */
 261         s8 base_power_index;    /* gain index for power at factory temp. */
 262         s8 requested_power;     /* power (dBm) requested for this chnl/rate */
 263 };
 264
 265 /* current scan Tx power values to use, one for each scan rate for each
 266  * channel. */
 267 struct iwl3945_scan_power_info {
 268         struct iwl3945_tx_power tpc;    /* actual radio and DSP gain settings */
 269         s8 power_table_index;   /* actual (compenst'd) index into gain table */
 270         s8 requested_power;     /* scan pwr (dBm) requested for chnl/rate */
 271 };
 272
 273 /*
 274  * One for each channel, holds all channel setup data
 275  * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
 276  *     with one another!
 277  */
 278 struct iwl_channel_info {
 279         struct iwl4965_channel_tgd_info tgd;
 280         struct iwl4965_channel_tgh_info tgh;
 281         struct iwl_eeprom_channel eeprom;       /* EEPROM regulatory limit */
 282         struct iwl_eeprom_channel ht40_eeprom;  /* EEPROM regulatory limit for
 283                                                  * HT40 channel */
 284
 285         u8 channel;       /* channel number */
 286         u8 flags;         /* flags copied from EEPROM */
 287         s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
 288         s8 curr_txpow;    /* (dBm) regulatory/spectrum/user (not h/w) limit */
 289         s8 min_power;     /* always 0 */
 290         s8 scan_power;    /* (dBm) regul. eeprom, direct scans, any rate */
 291
 292         u8 group_index;   /* 0-4, maps channel to group1/2/3/4/5 */
 293         u8 band_index;    /* 0-4, maps channel to band1/2/3/4/5 */
 294         enum ieee80211_band band;
 295
 296         /* HT40 channel info */
 297         s8 ht40_max_power_avg;  /* (dBm) regul. eeprom, normal Tx, any rate */
 298         s8 ht40_curr_txpow;     /* (dBm) regulatory/spectrum/user (not h/w) */
 299         s8 ht40_min_power;      /* always 0 */
 300         s8 ht40_scan_power;     /* (dBm) eeprom, direct scans, any rate */
 301         u8 ht40_flags;          /* flags copied from EEPROM */
 302         u8 ht40_extension_channel; /* HT_IE_EXT_CHANNEL_* */
 303
 304         /* Radio/DSP gain settings for each "normal" data Tx rate.
 305          * These include, in addition to RF and DSP gain, a few fields for
 306          *   remembering/modifying gain settings (indexes). */
 307         struct iwl3945_channel_power_info power_info[IWL4965_MAX_RATE];
 308
 309         /* Radio/DSP gain settings for each scan rate, for directed scans. */
 310         struct iwl3945_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES];
 311 };
 312
 313 #define IWL_TX_FIFO_AC0 0
 314 #define IWL_TX_FIFO_AC1 1
 315 #define IWL_TX_FIFO_AC2 2
 316 #define IWL_TX_FIFO_AC3 3
 317 #define IWL_TX_FIFO_HCCA_1      5
 318 #define IWL_TX_FIFO_HCCA_2      6
 319 #define IWL_TX_FIFO_NONE        7
 320
 321 /* Minimum number of queues. MAX_NUM is defined in hw specific files.
 322  * Set the minimum to accommodate the 4 standard TX queues, 1 command
 323  * queue, 2 (unused) HCCA queues, and 4 HT queues (one for each AC) */
 324 #define IWL_MIN_NUM_QUEUES      10
 325
 326 /*
 327  * uCode queue management definitions ...
 328  * Queue #4 is the command queue for 3945/4965/5x00/1000/6x00.
 329  */
 330 #define IWL_CMD_QUEUE_NUM       4
 331
 332 /* Power management (not Tx power) structures */
 333
 334 enum iwl_pwr_src {
 335         IWL_PWR_SRC_VMAIN,
 336         IWL_PWR_SRC_VAUX,
 337 };
 338
 339 #define IEEE80211_DATA_LEN              2304
 340 #define IEEE80211_4ADDR_LEN             30
 341 #define IEEE80211_HLEN                  (IEEE80211_4ADDR_LEN)
 342 #define IEEE80211_FRAME_LEN             (IEEE80211_DATA_LEN + IEEE80211_HLEN)
 343
 344 struct iwl_frame {
 345         union {
 346                 struct ieee80211_hdr frame;
 347                 struct iwl_tx_beacon_cmd beacon;
 348                 u8 raw[IEEE80211_FRAME_LEN];
 349                 u8 cmd[360];
 350         } u;
 351         struct list_head list;
 352 };
 353
 354 #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
 355 #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
 356 #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
 357
 358 enum {
 359         CMD_SYNC = 0,
 360         CMD_SIZE_NORMAL = 0,
 361         CMD_NO_SKB = 0,
 362         CMD_SIZE_HUGE = (1 << 0),
 363         CMD_ASYNC = (1 << 1),
 364         CMD_WANT_SKB = (1 << 2),
 365 };
 366
 367 #define IWL_CMD_MAX_PAYLOAD 320
 368
 369 /*
 370  * IWL_LINK_HDR_MAX should include ieee80211_hdr, radiotap header,
 371  * SNAP header and alignment. It should also be big enough for 802.11
 372  * control frames.
 373  */
 374 #define IWL_LINK_HDR_MAX 64
 375
 376 /**
 377  * struct iwl_device_cmd
 378  *
 379  * For allocation of the command and tx queues, this establishes the overall
 380  * size of the largest command we send to uCode, except for a scan command
 381  * (which is relatively huge; space is allocated separately).
 382  */
 383 struct iwl_device_cmd {
 384         struct iwl_cmd_header hdr;      /* uCode API */
 385         union {
 386                 u32 flags;
 387                 u8 val8;
 388                 u16 val16;
 389                 u32 val32;
 390                 struct iwl_tx_cmd tx;
 391                 u8 payload[IWL_CMD_MAX_PAYLOAD];
 392         } __attribute__ ((packed)) cmd;
 393 } __attribute__ ((packed));
 394
 395 #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_device_cmd))
 396
 397
 398 struct iwl_host_cmd {
 399         const void *data;
 400         unsigned long reply_page;
 401         void (*callback)(struct iwl_priv *priv,
 402                          struct iwl_device_cmd *cmd,
 403                          struct iwl_rx_packet *pkt);
 404         u32 flags;
 405         u16 len;
 406         u8 id;
 407 };
 408
 409 /*
 410  * RX related structures and functions
 411  */
 412 #define RX_FREE_BUFFERS 64
 413 #define RX_LOW_WATERMARK 8
 414
 415 #define SUP_RATE_11A_MAX_NUM_CHANNELS  8
 416 #define SUP_RATE_11B_MAX_NUM_CHANNELS  4
 417 #define SUP_RATE_11G_MAX_NUM_CHANNELS  12
 418
 419 /**
 420  * struct iwl_rx_queue - Rx queue
 421  * @bd: driver's pointer to buffer of receive buffer descriptors (rbd)
 422  * @dma_addr: bus address of buffer of receive buffer descriptors (rbd)
 423  * @read: Shared index to newest available Rx buffer
 424  * @write: Shared index to oldest written Rx packet
 425  * @free_count: Number of pre-allocated buffers in rx_free
 426  * @rx_free: list of free SKBs for use
 427  * @rx_used: List of Rx buffers with no SKB
 428  * @need_update: flag to indicate we need to update read/write index
 429  * @rb_stts: driver's pointer to receive buffer status
 430  * @rb_stts_dma: bus address of receive buffer status
 431  *
 432  * NOTE:  rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers
 433  */
 434 struct iwl_rx_queue {
 435         __le32 *bd;
 436         dma_addr_t dma_addr;
 437         struct iwl_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
 438         struct iwl_rx_mem_buffer *queue[RX_QUEUE_SIZE];
 439         u32 read;
 440         u32 write;
 441         u32 free_count;
 442         u32 write_actual;
 443         struct list_head rx_free;
 444         struct list_head rx_used;
 445         int need_update;
 446         struct iwl_rb_status *rb_stts;
 447         dma_addr_t rb_stts_dma;
 448         spinlock_t lock;
 449 };
 450
 451 #define IWL_SUPPORTED_RATES_IE_LEN         8
 452
 453 #define MAX_TID_COUNT        9
 454
 455 #define IWL_INVALID_RATE     0xFF
 456 #define IWL_INVALID_VALUE    -1
 457
 458 /**
 459  * struct iwl_ht_agg -- aggregation status while waiting for block-ack
 460  * @txq_id: Tx queue used for Tx attempt
 461  * @frame_count: # frames attempted by Tx command
 462  * @wait_for_ba: Expect block-ack before next Tx reply
 463  * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
 464  * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
 465  * @bitmap1: High order, one bit for each frame pending ACK in Tx window
 466  * @rate_n_flags: Rate at which Tx was attempted
 467  *
 468  * If REPLY_TX indicates that aggregation was attempted, driver must wait
 469  * for block ack (REPLY_COMPRESSED_BA).  This struct stores tx reply info
 470  * until block ack arrives.
 471  */
 472 struct iwl_ht_agg {
 473         u16 txq_id;
 474         u16 frame_count;
 475         u16 wait_for_ba;
 476         u16 start_idx;
 477         u64 bitmap;
 478         u32 rate_n_flags;
 479 #define IWL_AGG_OFF 0
 480 #define IWL_AGG_ON 1
 481 #define IWL_EMPTYING_HW_QUEUE_ADDBA 2
 482 #define IWL_EMPTYING_HW_QUEUE_DELBA 3
 483         u8 state;
 484 };
 485
 486
 487 struct iwl_tid_data {
 488         u16 seq_number;
 489         u16 tfds_in_queue;
 490         struct iwl_ht_agg agg;
 491 };
 492
 493 struct iwl_hw_key {
 494         enum ieee80211_key_alg alg;
 495         int keylen;
 496         u8 keyidx;
 497         u8 key[32];
 498 };
 499
 500 union iwl_ht_rate_supp {
 501         u16 rates;
 502         struct {
 503                 u8 siso_rate;
 504                 u8 mimo_rate;
 505         };
 506 };
 507
 508 #define CFG_HT_RX_AMPDU_FACTOR_DEF  (0x3)
 509
 510 /*
 511  * Maximal MPDU density for TX aggregation
 512  * 4 - 2us density
 513  * 5 - 4us density
 514  * 6 - 8us density
 515  * 7 - 16us density
 516  */
 517 #define CFG_HT_MPDU_DENSITY_4USEC   (0x5)
 518 #define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_4USEC
 519
 520 struct iwl_ht_config {
 521         /* self configuration data */
 522         bool is_ht;
 523         bool is_40mhz;
 524         bool single_chain_sufficient;
 525         /* BSS related data */
 526         u8 extension_chan_offset;
 527         u8 ht_protection;
 528         u8 non_GF_STA_present;
 529 };
 530
 531 union iwl_qos_capabity {
 532         struct {
 533                 u8 edca_count:4;        /* bit 0-3 */
 534                 u8 q_ack:1;             /* bit 4 */
 535                 u8 queue_request:1;     /* bit 5 */
 536                 u8 txop_request:1;      /* bit 6 */
 537                 u8 reserved:1;          /* bit 7 */
 538         } q_AP;
 539         struct {
 540                 u8 acvo_APSD:1;         /* bit 0 */
 541                 u8 acvi_APSD:1;         /* bit 1 */
 542                 u8 ac_bk_APSD:1;        /* bit 2 */
 543                 u8 ac_be_APSD:1;        /* bit 3 */
 544                 u8 q_ack:1;             /* bit 4 */
 545                 u8 max_len:2;           /* bit 5-6 */
 546                 u8 more_data_ack:1;     /* bit 7 */
 547         } q_STA;
 548         u8 val;
 549 };
 550
 551 /* QoS structures */
 552 struct iwl_qos_info {
 553         int qos_active;
 554         union iwl_qos_capabity qos_cap;
 555         struct iwl_qosparam_cmd def_qos_parm;
 556 };
 557
 558 #define STA_PS_STATUS_WAKE             0
 559 #define STA_PS_STATUS_SLEEP            1
 560
 561
 562 struct iwl3945_station_entry {
 563         struct iwl3945_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 struct iwl_station_entry {
 571         struct iwl_addsta_cmd sta;
 572         struct iwl_tid_data tid[MAX_TID_COUNT];
 573         u8 used;
 574         u8 ps_status;
 575         struct iwl_hw_key keyinfo;
 576 };
 577
 578 /*
 579  * iwl_station_priv: Driver's private station information
 580  *
 581  * When mac80211 creates a station it reserves some space (hw->sta_data_size)
 582  * in the structure for use by driver. This structure is places in that
 583  * space.
 584  *
 585  * At the moment use it for the station's rate scaling information.
 586  */
 587 struct iwl_station_priv {
 588         struct iwl_lq_sta lq_sta;
 589 };
 590
 591 /* one for each uCode image (inst/data, boot/init/runtime) */
 592 struct fw_desc {
 593         void *v_addr;           /* access by driver */
 594         dma_addr_t p_addr;      /* access by card's busmaster DMA */
 595         u32 len;                /* bytes */
 596 };
 597
 598 /* uCode file layout */
 599 struct iwl_ucode_header {
 600         __le32 ver;     /* major/minor/API/serial */
 601         union {
 602                 struct {
 603                         __le32 inst_size;       /* bytes of runtime code */
 604                         __le32 data_size;       /* bytes of runtime data */
 605                         __le32 init_size;       /* bytes of init code */
 606                         __le32 init_data_size;  /* bytes of init data */
 607                         __le32 boot_size;       /* bytes of bootstrap code */
 608                         u8 data[0];             /* in same order as sizes */
 609                 } v1;
 610                 struct {
 611                         __le32 build;           /* build number */
 612                         __le32 inst_size;       /* bytes of runtime code */
 613                         __le32 data_size;       /* bytes of runtime data */
 614                         __le32 init_size;       /* bytes of init code */
 615                         __le32 init_data_size;  /* bytes of init data */
 616                         __le32 boot_size;       /* bytes of bootstrap code */
 617                         u8 data[0];             /* in same order as sizes */
 618                 } v2;
 619         } u;
 620 };
 621 #define UCODE_HEADER_SIZE(ver) ((ver) == 1 ? 24 : 28)
 622
 623 struct iwl4965_ibss_seq {
 624         u8 mac[ETH_ALEN];
 625         u16 seq_num;
 626         u16 frag_num;
 627         unsigned long packet_time;
 628         struct list_head list;
 629 };
 630
 631 struct iwl_sensitivity_ranges {
 632         u16 min_nrg_cck;
 633         u16 max_nrg_cck;
 634
 635         u16 nrg_th_cck;
 636         u16 nrg_th_ofdm;
 637
 638         u16 auto_corr_min_ofdm;
 639         u16 auto_corr_min_ofdm_mrc;
 640         u16 auto_corr_min_ofdm_x1;
 641         u16 auto_corr_min_ofdm_mrc_x1;
 642
 643         u16 auto_corr_max_ofdm;
 644         u16 auto_corr_max_ofdm_mrc;
 645         u16 auto_corr_max_ofdm_x1;
 646         u16 auto_corr_max_ofdm_mrc_x1;
 647
 648         u16 auto_corr_max_cck;
 649         u16 auto_corr_max_cck_mrc;
 650         u16 auto_corr_min_cck;
 651         u16 auto_corr_min_cck_mrc;
 652
 653         u16 barker_corr_th_min;
 654         u16 barker_corr_th_min_mrc;
 655         u16 nrg_th_cca;
 656 };
 657
 658
 659 #define KELVIN_TO_CELSIUS(x) ((x)-273)
 660 #define CELSIUS_TO_KELVIN(x) ((x)+273)
 661
 662
 663 /**
 664  * struct iwl_hw_params
 665  * @max_txq_num: Max # Tx queues supported
 666  * @dma_chnl_num: Number of Tx DMA/FIFO channels
 667  * @scd_bc_tbls_size: size of scheduler byte count tables
 668  * @tfd_size: TFD size
 669  * @tx/rx_chains_num: Number of TX/RX chains
 670  * @valid_tx/rx_ant: usable antennas
 671  * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
 672  * @max_rxq_log: Log-base-2 of max_rxq_size
 673  * @rx_page_order: Rx buffer page order
 674  * @rx_wrt_ptr_reg: FH{39}_RSCSR_CHNL0_WPTR
 675  * @max_stations:
 676  * @bcast_sta_id:
 677  * @ht40_channel: is 40MHz width possible in band 2.4
 678  * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ)
 679  * @sw_crypto: 0 for hw, 1 for sw
 680  * @max_xxx_size: for ucode uses
 681  * @ct_kill_threshold: temperature threshold
 682  * @calib_init_cfg: setup initial calibrations for the hw
 683  * @struct iwl_sensitivity_ranges: range of sensitivity values
 684  */
 685 struct iwl_hw_params {
 686         u8 max_txq_num;
 687         u8 dma_chnl_num;
 688         u16 scd_bc_tbls_size;
 689         u32 tfd_size;
 690         u8  tx_chains_num;
 691         u8  rx_chains_num;
 692         u8  valid_tx_ant;
 693         u8  valid_rx_ant;
 694         u16 max_rxq_size;
 695         u16 max_rxq_log;
 696         u32 rx_page_order;
 697         u32 rx_wrt_ptr_reg;
 698         u8  max_stations;
 699         u8  bcast_sta_id;
 700         u8  ht40_channel;
 701         u8  max_beacon_itrvl;   /* in 1024 ms */
 702         u32 max_inst_size;
 703         u32 max_data_size;
 704         u32 max_bsm_size;
 705         u32 ct_kill_threshold; /* value in hw-dependent units */
 706         u32 ct_kill_exit_threshold; /* value in hw-dependent units */
 707                                     /* for 1000, 6000 series and up */
 708         u32 calib_init_cfg;
 709         const struct iwl_sensitivity_ranges *sens;
 710 };
 711
 712
 713 /******************************************************************************
 714  *
 715  * Functions implemented in core module which are forward declared here
 716  * for use by iwl-[4-5].c
 717  *
 718  * NOTE:  The implementation of these functions are not hardware specific
 719  * which is why they are in the core module files.
 720  *
 721  * Naming convention --
 722  * iwl_         <-- Is part of iwlwifi
 723  * iwlXXXX_     <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
 724  * iwl4965_bg_      <-- Called from work queue context
 725  * iwl4965_mac_     <-- mac80211 callback
 726  *
 727  ****************************************************************************/
 728 extern void iwl_update_chain_flags(struct iwl_priv *priv);
 729 extern int iwl_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src);
 730 extern const u8 iwl_bcast_addr[ETH_ALEN];
 731 extern int iwl_rxq_stop(struct iwl_priv *priv);
 732 extern void iwl_txq_ctx_stop(struct iwl_priv *priv);
 733 extern int iwl_queue_space(const struct iwl_queue *q);
 734 static inline int iwl_queue_used(const struct iwl_queue *q, int i)
 735 {
 736         return q->write_ptr > q->read_ptr ?
 737                 (i >= q->read_ptr && i < q->write_ptr) :
 738                 !(i < q->read_ptr && i >= q->write_ptr);
 739 }
 740
 741
 742 static inline u8 get_cmd_index(struct iwl_queue *q, u32 index, int is_huge)
 743 {
 744         /* This is for scan command, the big buffer at end of command array */
 745         if (is_huge)
 746                 return q->n_window;     /* must be power of 2 */
 747
 748         /* Otherwise, use normal size buffers */
 749         return index & (q->n_window - 1);
 750 }
 751
 752
 753 struct iwl_dma_ptr {
 754         dma_addr_t dma;
 755         void *addr;
 756         size_t size;
 757 };
 758
 759 #define IWL_OPERATION_MODE_AUTO     0
 760 #define IWL_OPERATION_MODE_HT_ONLY  1
 761 #define IWL_OPERATION_MODE_MIXED    2
 762 #define IWL_OPERATION_MODE_20MHZ    3
 763
 764 #define IWL_TX_CRC_SIZE 4
 765 #define IWL_TX_DELIMITER_SIZE 4
 766
 767 #define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
 768
 769 /* Sensitivity and chain noise calibration */
 770 #define INITIALIZATION_VALUE            0xFFFF
 771 #define IWL4965_CAL_NUM_BEACONS         20
 772 #define IWL_CAL_NUM_BEACONS             16
 773 #define MAXIMUM_ALLOWED_PATHLOSS        15
 774
 775 #define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
 776
 777 #define MAX_FA_OFDM  50
 778 #define MIN_FA_OFDM  5
 779 #define MAX_FA_CCK   50
 780 #define MIN_FA_CCK   5
 781
 782 #define AUTO_CORR_STEP_OFDM       1
 783
 784 #define AUTO_CORR_STEP_CCK     3
 785 #define AUTO_CORR_MAX_TH_CCK   160
 786
 787 #define NRG_DIFF               2
 788 #define NRG_STEP_CCK           2
 789 #define NRG_MARGIN             8
 790 #define MAX_NUMBER_CCK_NO_FA 100
 791
 792 #define AUTO_CORR_CCK_MIN_VAL_DEF    (125)
 793
 794 #define CHAIN_A             0
 795 #define CHAIN_B             1
 796 #define CHAIN_C             2
 797 #define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
 798 #define ALL_BAND_FILTER                 0xFF00
 799 #define IN_BAND_FILTER                  0xFF
 800 #define MIN_AVERAGE_NOISE_MAX_VALUE     0xFFFFFFFF
 801
 802 #define NRG_NUM_PREV_STAT_L     20
 803 #define NUM_RX_CHAINS           3
 804
 805 enum iwl4965_false_alarm_state {
 806         IWL_FA_TOO_MANY = 0,
 807         IWL_FA_TOO_FEW = 1,
 808         IWL_FA_GOOD_RANGE = 2,
 809 };
 810
 811 enum iwl4965_chain_noise_state {
 812         IWL_CHAIN_NOISE_ALIVE = 0,  /* must be 0 */
 813         IWL_CHAIN_NOISE_ACCUMULATE,
 814         IWL_CHAIN_NOISE_CALIBRATED,
 815         IWL_CHAIN_NOISE_DONE,
 816 };
 817
 818 enum iwl4965_calib_enabled_state {
 819         IWL_CALIB_DISABLED = 0,  /* must be 0 */
 820         IWL_CALIB_ENABLED = 1,
 821 };
 822
 823
 824 /*
 825  * enum iwl_calib
 826  * defines the order in which results of initial calibrations
 827  * should be sent to the runtime uCode
 828  */
 829 enum iwl_calib {
 830         IWL_CALIB_XTAL,
 831         IWL_CALIB_DC,
 832         IWL_CALIB_LO,
 833         IWL_CALIB_TX_IQ,
 834         IWL_CALIB_TX_IQ_PERD,
 835         IWL_CALIB_BASE_BAND,
 836         IWL_CALIB_MAX
 837 };
 838
 839 /* Opaque calibration results */
 840 struct iwl_calib_result {
 841         void *buf;
 842         size_t buf_len;
 843 };
 844
 845 enum ucode_type {
 846         UCODE_NONE = 0,
 847         UCODE_INIT,
 848         UCODE_RT
 849 };
 850
 851 /* Sensitivity calib data */
 852 struct iwl_sensitivity_data {
 853         u32 auto_corr_ofdm;
 854         u32 auto_corr_ofdm_mrc;
 855         u32 auto_corr_ofdm_x1;
 856         u32 auto_corr_ofdm_mrc_x1;
 857         u32 auto_corr_cck;
 858         u32 auto_corr_cck_mrc;
 859
 860         u32 last_bad_plcp_cnt_ofdm;
 861         u32 last_fa_cnt_ofdm;
 862         u32 last_bad_plcp_cnt_cck;
 863         u32 last_fa_cnt_cck;
 864
 865         u32 nrg_curr_state;
 866         u32 nrg_prev_state;
 867         u32 nrg_value[10];
 868         u8  nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
 869         u32 nrg_silence_ref;
 870         u32 nrg_energy_idx;
 871         u32 nrg_silence_idx;
 872         u32 nrg_th_cck;
 873         s32 nrg_auto_corr_silence_diff;
 874         u32 num_in_cck_no_fa;
 875         u32 nrg_th_ofdm;
 876
 877         u16 barker_corr_th_min;
 878         u16 barker_corr_th_min_mrc;
 879         u16 nrg_th_cca;
 880 };
 881
 882 /* Chain noise (differential Rx gain) calib data */
 883 struct iwl_chain_noise_data {
 884         u32 active_chains;
 885         u32 chain_noise_a;
 886         u32 chain_noise_b;
 887         u32 chain_noise_c;
 888         u32 chain_signal_a;
 889         u32 chain_signal_b;
 890         u32 chain_signal_c;
 891         u16 beacon_count;
 892         u8 disconn_array[NUM_RX_CHAINS];
 893         u8 delta_gain_code[NUM_RX_CHAINS];
 894         u8 radio_write;
 895         u8 state;
 896 };
 897
 898 #define EEPROM_SEM_TIMEOUT 10           /* milliseconds */
 899 #define EEPROM_SEM_RETRY_LIMIT 1000     /* number of attempts (not time) */
 900
 901 #define IWL_TRAFFIC_ENTRIES     (256)
 902 #define IWL_TRAFFIC_ENTRY_SIZE  (64)
 903
 904 enum {
 905         MEASUREMENT_READY = (1 << 0),
 906         MEASUREMENT_ACTIVE = (1 << 1),
 907 };
 908
 909 enum iwl_nvm_type {
 910         NVM_DEVICE_TYPE_EEPROM = 0,
 911         NVM_DEVICE_TYPE_OTP,
 912 };
 913
 914 /*
 915  * Two types of OTP memory access modes
 916  *   IWL_OTP_ACCESS_ABSOLUTE - absolute address mode,
 917  *                              based on physical memory addressing
 918  *   IWL_OTP_ACCESS_RELATIVE - relative address mode,
 919  *                             based on logical memory addressing
 920  */
 921 enum iwl_access_mode {
 922         IWL_OTP_ACCESS_ABSOLUTE,
 923         IWL_OTP_ACCESS_RELATIVE,
 924 };
 925
 926 /**
 927  * enum iwl_pa_type - Power Amplifier type
 928  * @IWL_PA_SYSTEM:  based on uCode configuration
 929  * @IWL_PA_HYBRID: use both Internal and external PA
 930  * @IWL_PA_INTERNAL: use Internal only
 931  */
 932 enum iwl_pa_type {
 933         IWL_PA_SYSTEM = 0,
 934         IWL_PA_HYBRID = 1,
 935         IWL_PA_INTERNAL = 2,
 936 };
 937
 938 /* interrupt statistics */
 939 struct isr_statistics {
 940         u32 hw;
 941         u32 sw;
 942         u32 sw_err;
 943         u32 sch;
 944         u32 alive;
 945         u32 rfkill;
 946         u32 ctkill;
 947         u32 wakeup;
 948         u32 rx;
 949         u32 rx_handlers[REPLY_MAX];
 950         u32 tx;
 951         u32 unhandled;
 952 };
 953
 954 #ifdef CONFIG_IWLWIFI_DEBUGFS
 955 /* management statistics */
 956 enum iwl_mgmt_stats {
 957         MANAGEMENT_ASSOC_REQ = 0,
 958         MANAGEMENT_ASSOC_RESP,
 959         MANAGEMENT_REASSOC_REQ,
 960         MANAGEMENT_REASSOC_RESP,
 961         MANAGEMENT_PROBE_REQ,
 962         MANAGEMENT_PROBE_RESP,
 963         MANAGEMENT_BEACON,
 964         MANAGEMENT_ATIM,
 965         MANAGEMENT_DISASSOC,
 966         MANAGEMENT_AUTH,
 967         MANAGEMENT_DEAUTH,
 968         MANAGEMENT_ACTION,
 969         MANAGEMENT_MAX,
 970 };
 971 /* control statistics */
 972 enum iwl_ctrl_stats {
 973         CONTROL_BACK_REQ =  0,
 974         CONTROL_BACK,
 975         CONTROL_PSPOLL,
 976         CONTROL_RTS,
 977         CONTROL_CTS,
 978         CONTROL_ACK,
 979         CONTROL_CFEND,
 980         CONTROL_CFENDACK,
 981         CONTROL_MAX,
 982 };
 983
 984 struct traffic_stats {
 985         u32 mgmt[MANAGEMENT_MAX];
 986         u32 ctrl[CONTROL_MAX];
 987         u32 data_cnt;
 988         u64 data_bytes;
 989 };
 990 #else
 991 struct traffic_stats {
 992         u64 data_bytes;
 993 };
 994 #endif
 995
 996 struct iwl_priv {
 997
 998         /* ieee device used by generic ieee processing code */
 999         struct ieee80211_hw *hw;
1000         struct ieee80211_channel *ieee_channels;
1001         struct ieee80211_rate *ieee_rates;
1002         struct iwl_cfg *cfg;
1003
1004         /* temporary frame storage list */
1005         struct list_head free_frames;
1006         int frames_count;
1007
1008         enum ieee80211_band band;
1009         int alloc_rxb_page;
1010
1011         void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
1012                                        struct iwl_rx_mem_buffer *rxb);
1013
1014         struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
1015
1016 #if defined(CONFIG_IWLWIFI_SPECTRUM_MEASUREMENT) || defined(CONFIG_IWL3945_SPECTRUM_MEASUREMENT)
1017         /* spectrum measurement report caching */
1018         struct iwl_spectrum_notification measure_report;
1019         u8 measurement_status;
1020 #endif
1021         /* ucode beacon time */
1022         u32 ucode_beacon_time;
1023
1024         /* we allocate array of iwl4965_channel_info for NIC's valid channels.
1025          *    Access via channel # using indirect index array */
1026         struct iwl_channel_info *channel_info;  /* channel info array */
1027         u8 channel_count;       /* # of channels */
1028
1029         /* each calibration channel group in the EEPROM has a derived
1030          * clip setting for each rate. 3945 only.*/
1031         const struct iwl3945_clip_group clip39_groups[5];
1032
1033         /* thermal calibration */
1034         s32 temperature;        /* degrees Kelvin */
1035         s32 last_temperature;
1036
1037         /* init calibration results */
1038         struct iwl_calib_result calib_results[IWL_CALIB_MAX];
1039
1040         /* Scan related variables */
1041         unsigned long last_scan_jiffies;
1042         unsigned long next_scan_jiffies;
1043         unsigned long scan_start;
1044         unsigned long scan_pass_start;
1045         unsigned long scan_start_tsf;
1046         void *scan;
1047         int scan_bands;
1048         struct cfg80211_scan_request *scan_request;
1049         u8 scan_tx_ant[IEEE80211_NUM_BANDS];
1050         u8 mgmt_tx_ant;
1051
1052         /* spinlock */
1053         spinlock_t lock;        /* protect general shared data */
1054         spinlock_t hcmd_lock;   /* protect hcmd */
1055         spinlock_t reg_lock;    /* protect hw register access */
1056         struct mutex mutex;
1057
1058         /* basic pci-network driver stuff */
1059         struct pci_dev *pci_dev;
1060
1061         /* pci hardware address support */
1062         void __iomem *hw_base;
1063         u32  hw_rev;
1064         u32  hw_wa_rev;
1065         u8   rev_id;
1066
1067         /* uCode images, save to reload in case of failure */
1068         u32 ucode_ver;                  /* version of ucode, copy of
1069                                            iwl_ucode.ver */
1070         struct fw_desc ucode_code;      /* runtime inst */
1071         struct fw_desc ucode_data;      /* runtime data original */
1072         struct fw_desc ucode_data_backup;       /* runtime data save/restore */
1073         struct fw_desc ucode_init;      /* initialization inst */
1074         struct fw_desc ucode_init_data; /* initialization data */
1075         struct fw_desc ucode_boot;      /* bootstrap inst */
1076         enum ucode_type ucode_type;
1077         u8 ucode_write_complete;        /* the image write is complete */
1078
1079
1080         struct iwl_rxon_time_cmd rxon_timing;
1081
1082         /* We declare this const so it can only be
1083          * changed via explicit cast within the
1084          * routines that actually update the physical
1085          * hardware */
1086         const struct iwl_rxon_cmd active_rxon;
1087         struct iwl_rxon_cmd staging_rxon;
1088
1089         struct iwl_rxon_cmd recovery_rxon;
1090
1091         /* 1st responses from initialize and runtime uCode images.
1092          * 4965's initialize alive response contains some calibration data. */
1093         struct iwl_init_alive_resp card_alive_init;
1094         struct iwl_alive_resp card_alive;
1095
1096         unsigned long last_blink_time;
1097         u8 last_blink_rate;
1098         u8 allow_blinking;
1099         u64 led_tpt;
1100
1101         u16 active_rate;
1102         u16 active_rate_basic;
1103
1104         u8 assoc_station_added;
1105         u8 start_calib;
1106         struct iwl_sensitivity_data sensitivity_data;
1107         struct iwl_chain_noise_data chain_noise_data;
1108         __le16 sensitivity_tbl[HD_TABLE_SIZE];
1109
1110         struct iwl_ht_config current_ht_config;
1111         u8 last_phy_res[100];
1112
1113         /* Rate scaling data */
1114         u8 retry_rate;
1115
1116         wait_queue_head_t wait_command_queue;
1117
1118         int activity_timer_active;
1119
1120         /* Rx and Tx DMA processing queues */
1121         struct iwl_rx_queue rxq;
1122         struct iwl_tx_queue *txq;
1123         unsigned long txq_ctx_active_msk;
1124         struct iwl_dma_ptr  kw; /* keep warm address */
1125         struct iwl_dma_ptr  scd_bc_tbls;
1126
1127         u32 scd_base_addr;      /* scheduler sram base address */
1128
1129         unsigned long status;
1130
1131         int last_rx_rssi;       /* From Rx packet statistics */
1132         int last_rx_noise;      /* From beacon statistics */
1133
1134         /* counts mgmt, ctl, and data packets */
1135         struct traffic_stats tx_stats;
1136         struct traffic_stats rx_stats;
1137
1138         /* counts interrupts */
1139         struct isr_statistics isr_stats;
1140
1141         struct iwl_power_mgr power_data;
1142         struct iwl_tt_mgmt thermal_throttle;
1143
1144         struct iwl_notif_statistics statistics;
1145 #ifdef CONFIG_IWLWIFI_DEBUG
1146         struct iwl_notif_statistics accum_statistics;
1147 #endif
1148
1149         /* context information */
1150         u16 rates_mask;
1151
1152         u8 bssid[ETH_ALEN];
1153         u16 rts_threshold;
1154         u8 mac_addr[ETH_ALEN];
1155
1156         /*station table variables */
1157         spinlock_t sta_lock;
1158         int num_stations;
1159         struct iwl_station_entry stations[IWL_STATION_COUNT];
1160         struct iwl_wep_key wep_keys[WEP_KEYS_MAX];
1161         u8 default_wep_key;
1162         u8 key_mapping_key;
1163         unsigned long ucode_key_table;
1164
1165         /* queue refcounts */
1166 #define IWL_MAX_HW_QUEUES       32
1167         unsigned long queue_stopped[BITS_TO_LONGS(IWL_MAX_HW_QUEUES)];
1168         /* for each AC */
1169         atomic_t queue_stop_count[4];
1170
1171         /* Indication if ieee80211_ops->open has been called */
1172         u8 is_open;
1173
1174         u8 mac80211_registered;
1175
1176         /* Rx'd packet timing information */
1177         u32 last_beacon_time;
1178         u64 last_tsf;
1179
1180         /* eeprom */
1181         u8 *eeprom;
1182         int    nvm_device_type;
1183         struct iwl_eeprom_calib_info *calib_info;
1184
1185         enum nl80211_iftype iw_mode;
1186
1187         struct sk_buff *ibss_beacon;
1188
1189         /* Last Rx'd beacon timestamp */
1190         u64 timestamp;
1191         u16 beacon_int;
1192         struct ieee80211_vif *vif;
1193
1194         /*Added for 3945 */
1195         void *shared_virt;
1196         dma_addr_t shared_phys;
1197         /*End*/
1198         struct iwl_hw_params hw_params;
1199
1200         /* INT ICT Table */
1201         __le32 *ict_tbl;
1202         dma_addr_t ict_tbl_dma;
1203         dma_addr_t aligned_ict_tbl_dma;
1204         int ict_index;
1205         void *ict_tbl_vir;
1206         u32 inta;
1207         bool use_ict;
1208
1209         u32 inta_mask;
1210         /* Current association information needed to configure the
1211          * hardware */
1212         u16 assoc_id;
1213         u16 assoc_capability;
1214
1215         struct iwl_qos_info qos_data;
1216
1217         struct workqueue_struct *workqueue;
1218
1219         struct work_struct up;
1220         struct work_struct restart;
1221         struct work_struct calibrated_work;
1222         struct work_struct scan_completed;
1223         struct work_struct rx_replenish;
1224         struct work_struct abort_scan;
1225         struct work_struct update_link_led;
1226         struct work_struct auth_work;
1227         struct work_struct report_work;
1228         struct work_struct request_scan;
1229         struct work_struct beacon_update;
1230         struct work_struct tt_work;
1231         struct work_struct ct_enter;
1232         struct work_struct ct_exit;
1233
1234         struct tasklet_struct irq_tasklet;
1235
1236         struct delayed_work init_alive_start;
1237         struct delayed_work alive_start;
1238         struct delayed_work scan_check;
1239
1240         /*For 3945 only*/
1241         struct delayed_work thermal_periodic;
1242         struct delayed_work rfkill_poll;
1243
1244         /* TX Power */
1245         s8 tx_power_user_lmt;
1246         s8 tx_power_device_lmt;
1247
1248
1249 #ifdef CONFIG_IWLWIFI_DEBUG
1250         /* debugging info */
1251         u32 debug_level; /* per device debugging will override global
1252                             iwl_debug_level if set */
1253         u32 framecnt_to_us;
1254         atomic_t restrict_refcnt;
1255         bool disable_ht40;
1256 #ifdef CONFIG_IWLWIFI_DEBUGFS
1257         /* debugfs */
1258         u16 tx_traffic_idx;
1259         u16 rx_traffic_idx;
1260         u8 *tx_traffic;
1261         u8 *rx_traffic;
1262         struct iwl_debugfs *dbgfs;
1263 #endif /* CONFIG_IWLWIFI_DEBUGFS */
1264 #endif /* CONFIG_IWLWIFI_DEBUG */
1265
1266         struct work_struct txpower_work;
1267         u32 disable_sens_cal;
1268         u32 disable_chain_noise_cal;
1269         u32 disable_tx_power_cal;
1270         struct work_struct run_time_calib_work;
1271         struct timer_list statistics_periodic;
1272         bool hw_ready;
1273         /*For 3945*/
1274 #define IWL_DEFAULT_TX_POWER 0x0F
1275
1276         struct iwl3945_notif_statistics statistics_39;
1277
1278         u32 sta_supp_rates;
1279 }; /*iwl_priv */
1280
1281 static inline void iwl_txq_ctx_activate(struct iwl_priv *priv, int txq_id)
1282 {
1283         set_bit(txq_id, &priv->txq_ctx_active_msk);
1284 }
1285
1286 static inline void iwl_txq_ctx_deactivate(struct iwl_priv *priv, int txq_id)
1287 {
1288         clear_bit(txq_id, &priv->txq_ctx_active_msk);
1289 }
1290
1291 #ifdef CONFIG_IWLWIFI_DEBUG
1292 const char *iwl_get_tx_fail_reason(u32 status);
1293 /*
1294  * iwl_get_debug_level: Return active debug level for device
1295  *
1296  * Using sysfs it is possible to set per device debug level. This debug
1297  * level will be used if set, otherwise the global debug level which can be
1298  * set via module parameter is used.
1299  */
1300 static inline u32 iwl_get_debug_level(struct iwl_priv *priv)
1301 {
1302         if (priv->debug_level)
1303                 return priv->debug_level;
1304         else
1305                 return iwl_debug_level;
1306 }
1307 #else
1308 static inline const char *iwl_get_tx_fail_reason(u32 status) { return ""; }
1309
1310 static inline u32 iwl_get_debug_level(struct iwl_priv *priv)
1311 {
1312         return iwl_debug_level;
1313 }
1314 #endif
1315
1316
1317 static inline struct ieee80211_hdr *iwl_tx_queue_get_hdr(struct iwl_priv *priv,
1318                                                          int txq_id, int idx)
1319 {
1320         if (priv->txq[txq_id].txb[idx].skb[0])
1321                 return (struct ieee80211_hdr *)priv->txq[txq_id].
1322                                 txb[idx].skb[0]->data;
1323         return NULL;
1324 }
1325
1326
1327 static inline int iwl_is_associated(struct iwl_priv *priv)
1328 {
1329         return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
1330 }
1331
1332 static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
1333 {
1334         if (ch_info == NULL)
1335                 return 0;
1336         return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
1337 }
1338
1339 static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
1340 {
1341         return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
1342 }
1343
1344 static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
1345 {
1346         return ch_info->band == IEEE80211_BAND_5GHZ;
1347 }
1348
1349 static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
1350 {
1351         return ch_info->band == IEEE80211_BAND_2GHZ;
1352 }
1353
1354 static inline int is_channel_passive(const struct iwl_channel_info *ch)
1355 {
1356         return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1357 }
1358
1359 static inline int is_channel_ibss(const struct iwl_channel_info *ch)
1360 {
1361         return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1362 }
1363
1364 #endif                          /* __iwl_dev_h__ */