drivers/net/wireless/iwlwifi/iwl-4965.h

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2003 - 2008 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  * James P. Ketrenos <ipw2100-admin@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-4965.h) for driver implementation definitions.
  28  * Please use iwl-4965-commands.h for uCode API definitions.
  29  * Please use iwl-4965-hw.h for hardware-related definitions.
  30  */
  31
  32 #ifndef __iwl_4965_h__
  33 #define __iwl_4965_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 #define DRV_NAME        "iwl4965"
  40 #include "iwl-rfkill.h"
  41 #include "iwl-eeprom.h"
  42 #include "iwl-4965-hw.h"
  43 #include "iwl-csr.h"
  44 #include "iwl-prph.h"
  45 #include "iwl-debug.h"
  46 #include "iwl-led.h"
  47 #include "iwl-power.h"
  48
  49 /* configuration for the iwl4965 */
  50 extern struct iwl_cfg iwl4965_agn_cfg;
  51
  52 /* Change firmware file name, using "-" and incrementing number,
  53  *   *only* when uCode interface or architecture changes so that it
  54  *   is not compatible with earlier drivers.
  55  * This number will also appear in << 8 position of 1st dword of uCode file */
  56 #define IWL4965_UCODE_API "-1"
  57
  58
  59 /* Default noise level to report when noise measurement is not available.
  60  *   This may be because we're:
  61  *   1)  Not associated (4965, no beacon statistics being sent to driver)
  62  *   2)  Scanning (noise measurement does not apply to associated channel)
  63  *   3)  Receiving CCK (3945 delivers noise info only for OFDM frames)
  64  * Use default noise value of -127 ... this is below the range of measurable
  65  *   Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
  66  *   Also, -127 works better than 0 when averaging frames with/without
  67  *   noise info (e.g. averaging might be done in app); measured dBm values are
  68  *   always negative ... using a negative value as the default keeps all
  69  *   averages within an s8's (used in some apps) range of negative values. */
  70 #define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
  71
  72 enum iwl4965_antenna {
  73         IWL_ANTENNA_DIVERSITY,
  74         IWL_ANTENNA_MAIN,
  75         IWL_ANTENNA_AUX
  76 };
  77
  78 /*
  79  * RTS threshold here is total size [2347] minus 4 FCS bytes
  80  * Per spec:
  81  *   a value of 0 means RTS on all data/management packets
  82  *   a value > max MSDU size means no RTS
  83  * else RTS for data/management frames where MPDU is larger
  84  *   than RTS value.
  85  */
  86 #define DEFAULT_RTS_THRESHOLD     2347U
  87 #define MIN_RTS_THRESHOLD         0U
  88 #define MAX_RTS_THRESHOLD         2347U
  89 #define MAX_MSDU_SIZE             2304U
  90 #define MAX_MPDU_SIZE             2346U
  91 #define DEFAULT_BEACON_INTERVAL   100U
  92 #define DEFAULT_SHORT_RETRY_LIMIT 7U
  93 #define DEFAULT_LONG_RETRY_LIMIT  4U
  94
  95 struct iwl4965_rx_mem_buffer {
  96         dma_addr_t dma_addr;
  97         struct sk_buff *skb;
  98         struct list_head list;
  99 };
 100
 101 /*
 102  * Generic queue structure
 103  *
 104  * Contains common data for Rx and Tx queues
 105  */
 106 struct iwl4965_queue {
 107         int n_bd;              /* number of BDs in this queue */
 108         int write_ptr;       /* 1-st empty entry (index) host_w*/
 109         int read_ptr;         /* last used entry (index) host_r*/
 110         dma_addr_t dma_addr;   /* physical addr for BD's */
 111         int n_window;          /* safe queue window */
 112         u32 id;
 113         int low_mark;          /* low watermark, resume queue if free
 114                                 * space more than this */
 115         int high_mark;         /* high watermark, stop queue if free
 116                                 * space less than this */
 117 } __attribute__ ((packed));
 118
 119 #define MAX_NUM_OF_TBS          (20)
 120
 121 /* One for each TFD */
 122 struct iwl4965_tx_info {
 123         struct ieee80211_tx_status status;
 124         struct sk_buff *skb[MAX_NUM_OF_TBS];
 125 };
 126
 127 /**
 128  * struct iwl4965_tx_queue - Tx Queue for DMA
 129  * @q: generic Rx/Tx queue descriptor
 130  * @bd: base of circular buffer of TFDs
 131  * @cmd: array of command/Tx buffers
 132  * @dma_addr_cmd: physical address of cmd/tx buffer array
 133  * @txb: array of per-TFD driver data
 134  * @need_update: indicates need to update read/write index
 135  * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
 136  *
 137  * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
 138  * descriptors) and required locking structures.
 139  */
 140 struct iwl4965_tx_queue {
 141         struct iwl4965_queue q;
 142         struct iwl4965_tfd_frame *bd;
 143         struct iwl_cmd *cmd;
 144         dma_addr_t dma_addr_cmd;
 145         struct iwl4965_tx_info *txb;
 146         int need_update;
 147         int sched_retry;
 148         int active;
 149 };
 150
 151 #define IWL_NUM_SCAN_RATES         (2)
 152
 153 struct iwl4965_channel_tgd_info {
 154         u8 type;
 155         s8 max_power;
 156 };
 157
 158 struct iwl4965_channel_tgh_info {
 159         s64 last_radar_time;
 160 };
 161
 162 /* current Tx power values to use, one for each rate for each channel.
 163  * requested power is limited by:
 164  * -- regulatory EEPROM limits for this channel
 165  * -- hardware capabilities (clip-powers)
 166  * -- spectrum management
 167  * -- user preference (e.g. iwconfig)
 168  * when requested power is set, base power index must also be set. */
 169 struct iwl4965_channel_power_info {
 170         struct iwl4965_tx_power tpc;    /* actual radio and DSP gain settings */
 171         s8 power_table_index;   /* actual (compenst'd) index into gain table */
 172         s8 base_power_index;    /* gain index for power at factory temp. */
 173         s8 requested_power;     /* power (dBm) requested for this chnl/rate */
 174 };
 175
 176 /* current scan Tx power values to use, one for each scan rate for each
 177  * channel. */
 178 struct iwl4965_scan_power_info {
 179         struct iwl4965_tx_power tpc;    /* actual radio and DSP gain settings */
 180         s8 power_table_index;   /* actual (compenst'd) index into gain table */
 181         s8 requested_power;     /* scan pwr (dBm) requested for chnl/rate */
 182 };
 183
 184 /* For fat_extension_channel */
 185 enum {
 186         HT_IE_EXT_CHANNEL_NONE = 0,
 187         HT_IE_EXT_CHANNEL_ABOVE,
 188         HT_IE_EXT_CHANNEL_INVALID,
 189         HT_IE_EXT_CHANNEL_BELOW,
 190         HT_IE_EXT_CHANNEL_MAX
 191 };
 192
 193 /*
 194  * One for each channel, holds all channel setup data
 195  * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
 196  *     with one another!
 197  */
 198 #define IWL4965_MAX_RATE (33)
 199
 200 struct iwl_channel_info {
 201         struct iwl4965_channel_tgd_info tgd;
 202         struct iwl4965_channel_tgh_info tgh;
 203         struct iwl4965_eeprom_channel eeprom;     /* EEPROM regulatory limit */
 204         struct iwl4965_eeprom_channel fat_eeprom; /* EEPROM regulatory limit for
 205                                                    * FAT channel */
 206
 207         u8 channel;       /* channel number */
 208         u8 flags;         /* flags copied from EEPROM */
 209         s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
 210         s8 curr_txpow;    /* (dBm) regulatory/spectrum/user (not h/w) limit */
 211         s8 min_power;     /* always 0 */
 212         s8 scan_power;    /* (dBm) regul. eeprom, direct scans, any rate */
 213
 214         u8 group_index;   /* 0-4, maps channel to group1/2/3/4/5 */
 215         u8 band_index;    /* 0-4, maps channel to band1/2/3/4/5 */
 216         enum ieee80211_band band;
 217
 218         /* Radio/DSP gain settings for each "normal" data Tx rate.
 219          * These include, in addition to RF and DSP gain, a few fields for
 220          *   remembering/modifying gain settings (indexes). */
 221         struct iwl4965_channel_power_info power_info[IWL4965_MAX_RATE];
 222
 223         /* FAT channel info */
 224         s8 fat_max_power_avg;   /* (dBm) regul. eeprom, normal Tx, any rate */
 225         s8 fat_curr_txpow;      /* (dBm) regulatory/spectrum/user (not h/w) */
 226         s8 fat_min_power;       /* always 0 */
 227         s8 fat_scan_power;      /* (dBm) eeprom, direct scans, any rate */
 228         u8 fat_flags;           /* flags copied from EEPROM */
 229         u8 fat_extension_channel; /* HT_IE_EXT_CHANNEL_* */
 230
 231         /* Radio/DSP gain settings for each scan rate, for directed scans. */
 232         struct iwl4965_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES];
 233 };
 234
 235 struct iwl4965_clip_group {
 236         /* maximum power level to prevent clipping for each rate, derived by
 237          *   us from this band's saturation power in EEPROM */
 238         const s8 clip_powers[IWL_MAX_RATES];
 239 };
 240
 241 #include "iwl-4965-rs.h"
 242
 243 #define IWL_TX_FIFO_AC0 0
 244 #define IWL_TX_FIFO_AC1 1
 245 #define IWL_TX_FIFO_AC2 2
 246 #define IWL_TX_FIFO_AC3 3
 247 #define IWL_TX_FIFO_HCCA_1      5
 248 #define IWL_TX_FIFO_HCCA_2      6
 249 #define IWL_TX_FIFO_NONE        7
 250
 251 /* Minimum number of queues. MAX_NUM is defined in hw specific files */
 252 #define IWL_MIN_NUM_QUEUES      4
 253
 254 /* Power management (not Tx power) structures */
 255
 256 enum iwl_pwr_src {
 257         IWL_PWR_SRC_VMAIN,
 258         IWL_PWR_SRC_VAUX,
 259 };
 260
 261 #define IEEE80211_DATA_LEN              2304
 262 #define IEEE80211_4ADDR_LEN             30
 263 #define IEEE80211_HLEN                  (IEEE80211_4ADDR_LEN)
 264 #define IEEE80211_FRAME_LEN             (IEEE80211_DATA_LEN + IEEE80211_HLEN)
 265
 266 struct iwl4965_frame {
 267         union {
 268                 struct ieee80211_hdr frame;
 269                 struct iwl4965_tx_beacon_cmd beacon;
 270                 u8 raw[IEEE80211_FRAME_LEN];
 271                 u8 cmd[360];
 272         } u;
 273         struct list_head list;
 274 };
 275
 276 #define SEQ_TO_QUEUE(x)  ((x >> 8) & 0xbf)
 277 #define QUEUE_TO_SEQ(x)  ((x & 0xbf) << 8)
 278 #define SEQ_TO_INDEX(x) ((u8)(x & 0xff))
 279 #define INDEX_TO_SEQ(x) ((u8)(x & 0xff))
 280 #define SEQ_HUGE_FRAME  (0x4000)
 281 #define SEQ_RX_FRAME    __constant_cpu_to_le16(0x8000)
 282 #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
 283 #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
 284 #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
 285
 286 enum {
 287         /* CMD_SIZE_NORMAL = 0, */
 288         CMD_SIZE_HUGE = (1 << 0),
 289         /* CMD_SYNC = 0, */
 290         CMD_ASYNC = (1 << 1),
 291         /* CMD_NO_SKB = 0, */
 292         CMD_WANT_SKB = (1 << 2),
 293 };
 294
 295 struct iwl_cmd;
 296 struct iwl_priv;
 297
 298 struct iwl_cmd_meta {
 299         struct iwl_cmd_meta *source;
 300         union {
 301                 struct sk_buff *skb;
 302                 int (*callback)(struct iwl_priv *priv,
 303                                 struct iwl_cmd *cmd, struct sk_buff *skb);
 304         } __attribute__ ((packed)) u;
 305
 306         /* The CMD_SIZE_HUGE flag bit indicates that the command
 307          * structure is stored at the end of the shared queue memory. */
 308         u32 flags;
 309
 310 } __attribute__ ((packed));
 311
 312 /**
 313  * struct iwl_cmd
 314  *
 315  * For allocation of the command and tx queues, this establishes the overall
 316  * size of the largest command we send to uCode, except for a scan command
 317  * (which is relatively huge; space is allocated separately).
 318  */
 319 struct iwl_cmd {
 320         struct iwl_cmd_meta meta;       /* driver data */
 321         struct iwl_cmd_header hdr;      /* uCode API */
 322         union {
 323                 struct iwl4965_addsta_cmd addsta;
 324                 struct iwl4965_led_cmd led;
 325                 u32 flags;
 326                 u8 val8;
 327                 u16 val16;
 328                 u32 val32;
 329                 struct iwl4965_bt_cmd bt;
 330                 struct iwl4965_rxon_time_cmd rxon_time;
 331                 struct iwl4965_powertable_cmd powertable;
 332                 struct iwl4965_qosparam_cmd qosparam;
 333                 struct iwl4965_tx_cmd tx;
 334                 struct iwl4965_tx_beacon_cmd tx_beacon;
 335                 struct iwl4965_rxon_assoc_cmd rxon_assoc;
 336                 u8 *indirect;
 337                 u8 payload[360];
 338         } __attribute__ ((packed)) cmd;
 339 } __attribute__ ((packed));
 340
 341 struct iwl_host_cmd {
 342         u8 id;
 343         u16 len;
 344         struct iwl_cmd_meta meta;
 345         const void *data;
 346 };
 347
 348 #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_cmd) - \
 349                               sizeof(struct iwl_cmd_meta))
 350
 351 /*
 352  * RX related structures and functions
 353  */
 354 #define RX_FREE_BUFFERS 64
 355 #define RX_LOW_WATERMARK 8
 356
 357 #define SUP_RATE_11A_MAX_NUM_CHANNELS  8
 358 #define SUP_RATE_11B_MAX_NUM_CHANNELS  4
 359 #define SUP_RATE_11G_MAX_NUM_CHANNELS  12
 360
 361 /**
 362  * struct iwl4965_rx_queue - Rx queue
 363  * @processed: Internal index to last handled Rx packet
 364  * @read: Shared index to newest available Rx buffer
 365  * @write: Shared index to oldest written Rx packet
 366  * @free_count: Number of pre-allocated buffers in rx_free
 367  * @rx_free: list of free SKBs for use
 368  * @rx_used: List of Rx buffers with no SKB
 369  * @need_update: flag to indicate we need to update read/write index
 370  *
 371  * NOTE:  rx_free and rx_used are used as a FIFO for iwl4965_rx_mem_buffers
 372  */
 373 struct iwl4965_rx_queue {
 374         __le32 *bd;
 375         dma_addr_t dma_addr;
 376         struct iwl4965_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
 377         struct iwl4965_rx_mem_buffer *queue[RX_QUEUE_SIZE];
 378         u32 processed;
 379         u32 read;
 380         u32 write;
 381         u32 free_count;
 382         struct list_head rx_free;
 383         struct list_head rx_used;
 384         int need_update;
 385         spinlock_t lock;
 386 };
 387
 388 #define IWL_SUPPORTED_RATES_IE_LEN         8
 389
 390 #define SCAN_INTERVAL 100
 391
 392 #define MAX_A_CHANNELS  252
 393 #define MIN_A_CHANNELS  7
 394
 395 #define MAX_B_CHANNELS  14
 396 #define MIN_B_CHANNELS  1
 397
 398 #define MAX_TID_COUNT        9
 399
 400 #define IWL_INVALID_RATE     0xFF
 401 #define IWL_INVALID_VALUE    -1
 402
 403 #ifdef CONFIG_IWL4965_HT
 404 /**
 405  * struct iwl4965_ht_agg -- aggregation status while waiting for block-ack
 406  * @txq_id: Tx queue used for Tx attempt
 407  * @frame_count: # frames attempted by Tx command
 408  * @wait_for_ba: Expect block-ack before next Tx reply
 409  * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
 410  * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
 411  * @bitmap1: High order, one bit for each frame pending ACK in Tx window
 412  * @rate_n_flags: Rate at which Tx was attempted
 413  *
 414  * If REPLY_TX indicates that aggregation was attempted, driver must wait
 415  * for block ack (REPLY_COMPRESSED_BA).  This struct stores tx reply info
 416  * until block ack arrives.
 417  */
 418 struct iwl4965_ht_agg {
 419         u16 txq_id;
 420         u16 frame_count;
 421         u16 wait_for_ba;
 422         u16 start_idx;
 423         u64 bitmap;
 424         u32 rate_n_flags;
 425 #define IWL_AGG_OFF 0
 426 #define IWL_AGG_ON 1
 427 #define IWL_EMPTYING_HW_QUEUE_ADDBA 2
 428 #define IWL_EMPTYING_HW_QUEUE_DELBA 3
 429         u8 state;
 430 };
 431
 432 #endif /* CONFIG_IWL4965_HT */
 433
 434 struct iwl4965_tid_data {
 435         u16 seq_number;
 436         u16 tfds_in_queue;
 437 #ifdef CONFIG_IWL4965_HT
 438         struct iwl4965_ht_agg agg;
 439 #endif /* CONFIG_IWL4965_HT */
 440 };
 441
 442 struct iwl4965_hw_key {
 443         enum ieee80211_key_alg alg;
 444         int keylen;
 445         u8 keyidx;
 446         struct ieee80211_key_conf *conf;
 447         u8 key[32];
 448 };
 449
 450 union iwl4965_ht_rate_supp {
 451         u16 rates;
 452         struct {
 453                 u8 siso_rate;
 454                 u8 mimo_rate;
 455         };
 456 };
 457
 458 #ifdef CONFIG_IWL4965_HT
 459 #define CFG_HT_RX_AMPDU_FACTOR_DEF  (0x3)
 460 #define CFG_HT_MPDU_DENSITY_2USEC   (0x5)
 461 #define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_2USEC
 462
 463 struct iwl_ht_info {
 464         /* self configuration data */
 465         u8 is_ht;
 466         u8 supported_chan_width;
 467         u16 tx_mimo_ps_mode;
 468         u8 is_green_field;
 469         u8 sgf;                 /* HT_SHORT_GI_* short guard interval */
 470         u8 max_amsdu_size;
 471         u8 ampdu_factor;
 472         u8 mpdu_density;
 473         u8 supp_mcs_set[16];
 474         /* BSS related data */
 475         u8 control_channel;
 476         u8 extension_chan_offset;
 477         u8 tx_chan_width;
 478         u8 ht_protection;
 479         u8 non_GF_STA_present;
 480 };
 481 #endif                          /*CONFIG_IWL4965_HT */
 482
 483 union iwl4965_qos_capabity {
 484         struct {
 485                 u8 edca_count:4;        /* bit 0-3 */
 486                 u8 q_ack:1;             /* bit 4 */
 487                 u8 queue_request:1;     /* bit 5 */
 488                 u8 txop_request:1;      /* bit 6 */
 489                 u8 reserved:1;          /* bit 7 */
 490         } q_AP;
 491         struct {
 492                 u8 acvo_APSD:1;         /* bit 0 */
 493                 u8 acvi_APSD:1;         /* bit 1 */
 494                 u8 ac_bk_APSD:1;        /* bit 2 */
 495                 u8 ac_be_APSD:1;        /* bit 3 */
 496                 u8 q_ack:1;             /* bit 4 */
 497                 u8 max_len:2;           /* bit 5-6 */
 498                 u8 more_data_ack:1;     /* bit 7 */
 499         } q_STA;
 500         u8 val;
 501 };
 502
 503 /* QoS structures */
 504 struct iwl4965_qos_info {
 505         int qos_enable;
 506         int qos_active;
 507         union iwl4965_qos_capabity qos_cap;
 508         struct iwl4965_qosparam_cmd def_qos_parm;
 509 };
 510
 511 #define STA_PS_STATUS_WAKE             0
 512 #define STA_PS_STATUS_SLEEP            1
 513
 514 struct iwl4965_station_entry {
 515         struct iwl4965_addsta_cmd sta;
 516         struct iwl4965_tid_data tid[MAX_TID_COUNT];
 517         u8 used;
 518         u8 ps_status;
 519         struct iwl4965_hw_key keyinfo;
 520 };
 521
 522 /* one for each uCode image (inst/data, boot/init/runtime) */
 523 struct fw_desc {
 524         void *v_addr;           /* access by driver */
 525         dma_addr_t p_addr;      /* access by card's busmaster DMA */
 526         u32 len;                /* bytes */
 527 };
 528
 529 /* uCode file layout */
 530 struct iwl4965_ucode {
 531         __le32 ver;             /* major/minor/subminor */
 532         __le32 inst_size;       /* bytes of runtime instructions */
 533         __le32 data_size;       /* bytes of runtime data */
 534         __le32 init_size;       /* bytes of initialization instructions */
 535         __le32 init_data_size;  /* bytes of initialization data */
 536         __le32 boot_size;       /* bytes of bootstrap instructions */
 537         u8 data[0];             /* data in same order as "size" elements */
 538 };
 539
 540 #define IWL_IBSS_MAC_HASH_SIZE 32
 541
 542 struct iwl4965_ibss_seq {
 543         u8 mac[ETH_ALEN];
 544         u16 seq_num;
 545         u16 frag_num;
 546         unsigned long packet_time;
 547         struct list_head list;
 548 };
 549
 550 struct iwl_sensitivity_ranges {
 551         u16 min_nrg_cck;
 552         u16 max_nrg_cck;
 553
 554         u16 nrg_th_cck;
 555         u16 nrg_th_ofdm;
 556
 557         u16 auto_corr_min_ofdm;
 558         u16 auto_corr_min_ofdm_mrc;
 559         u16 auto_corr_min_ofdm_x1;
 560         u16 auto_corr_min_ofdm_mrc_x1;
 561
 562         u16 auto_corr_max_ofdm;
 563         u16 auto_corr_max_ofdm_mrc;
 564         u16 auto_corr_max_ofdm_x1;
 565         u16 auto_corr_max_ofdm_mrc_x1;
 566
 567         u16 auto_corr_max_cck;
 568         u16 auto_corr_max_cck_mrc;
 569         u16 auto_corr_min_cck;
 570         u16 auto_corr_min_cck_mrc;
 571 };
 572
 573 /**
 574  * struct iwl_hw_params
 575  * @max_txq_num: Max # Tx queues supported
 576  * @tx_cmd_len: Size of Tx command (but not including frame itself)
 577  * @tx_ant_num: Number of TX antennas
 578  * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
 579  * @rx_buffer_size:
 580  * @max_rxq_log: Log-base-2 of max_rxq_size
 581  * @max_stations:
 582  * @bcast_sta_id:
 583  * @struct iwl_sensitivity_ranges: range of sensitivity values
 584  */
 585 struct iwl_hw_params {
 586         u16 max_txq_num;
 587         u16 tx_cmd_len;
 588         u8  tx_chains_num;
 589         u8  rx_chains_num;
 590         u8  valid_tx_ant;
 591         u8  valid_rx_ant;
 592         u16 max_rxq_size;
 593         u16 max_rxq_log;
 594         u32 rx_buf_size;
 595         u32 max_pkt_size;
 596         u8  max_stations;
 597         u8  bcast_sta_id;
 598 #ifdef CONFIG_IWLWIFI_RUN_TIME_CALIB
 599         const struct iwl_sensitivity_ranges *sens;
 600 #endif
 601 };
 602
 603 #define HT_SHORT_GI_20MHZ_ONLY          (1 << 0)
 604 #define HT_SHORT_GI_40MHZ_ONLY          (1 << 1)
 605
 606
 607 #define IWL_RX_HDR(x) ((struct iwl4965_rx_frame_hdr *)(\
 608                        x->u.rx_frame.stats.payload + \
 609                        x->u.rx_frame.stats.phy_count))
 610 #define IWL_RX_END(x) ((struct iwl4965_rx_frame_end *)(\
 611                        IWL_RX_HDR(x)->payload + \
 612                        le16_to_cpu(IWL_RX_HDR(x)->len)))
 613 #define IWL_RX_STATS(x) (&x->u.rx_frame.stats)
 614 #define IWL_RX_DATA(x) (IWL_RX_HDR(x)->payload)
 615
 616
 617 /******************************************************************************
 618  *
 619  * Functions implemented in iwl-base.c which are forward declared here
 620  * for use by iwl-*.c
 621  *
 622  *****************************************************************************/
 623 struct iwl4965_addsta_cmd;
 624 extern int iwl4965_send_add_station(struct iwl_priv *priv,
 625                                 struct iwl4965_addsta_cmd *sta, u8 flags);
 626 extern u8 iwl4965_add_station_flags(struct iwl_priv *priv, const u8 *addr,
 627                           int is_ap, u8 flags, void *ht_data);
 628 extern int iwl4965_is_network_packet(struct iwl_priv *priv,
 629                                  struct ieee80211_hdr *header);
 630 extern int iwl4965_power_init_handle(struct iwl_priv *priv);
 631 extern void iwl4965_handle_data_packet_monitor(struct iwl_priv *priv,
 632                                            struct iwl4965_rx_mem_buffer *rxb,
 633                                            void *data, short len,
 634                                            struct ieee80211_rx_status *stats,
 635                                            u16 phy_flags);
 636 extern int iwl4965_is_duplicate_packet(struct iwl_priv *priv,
 637                                        struct ieee80211_hdr *header);
 638 extern int iwl4965_rx_queue_alloc(struct iwl_priv *priv);
 639 extern void iwl4965_rx_queue_reset(struct iwl_priv *priv,
 640                                struct iwl4965_rx_queue *rxq);
 641 extern int iwl4965_calc_db_from_ratio(int sig_ratio);
 642 extern int iwl4965_calc_sig_qual(int rssi_dbm, int noise_dbm);
 643 extern int iwl4965_tx_queue_init(struct iwl_priv *priv,
 644                              struct iwl4965_tx_queue *txq, int count, u32 id);
 645 extern void iwl4965_rx_replenish(void *data);
 646 extern void iwl4965_tx_queue_free(struct iwl_priv *priv, struct iwl4965_tx_queue *txq);
 647 extern unsigned int iwl4965_fill_beacon_frame(struct iwl_priv *priv,
 648                                         struct ieee80211_hdr *hdr,
 649                                         const u8 *dest, int left);
 650 extern int iwl4965_rx_queue_update_write_ptr(struct iwl_priv *priv,
 651                                          struct iwl4965_rx_queue *q);
 652 extern __le16 *ieee80211_get_qos_ctrl(struct ieee80211_hdr *hdr);
 653 extern void iwl4965_update_chain_flags(struct iwl_priv *priv);
 654 int iwl4965_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src);
 655
 656 int iwl4965_init_geos(struct iwl_priv *priv);
 657 void iwl4965_free_geos(struct iwl_priv *priv);
 658
 659 extern const u8 iwl4965_broadcast_addr[ETH_ALEN];
 660 int iwl4965_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
 661
 662 /*
 663  * Currently used by iwl-3945-rs... look at restructuring so that it doesn't
 664  * call this... todo... fix that.
 665 */
 666 extern u8 iwl4965_sync_station(struct iwl_priv *priv, int sta_id,
 667                            u16 tx_rate, u8 flags);
 668
 669 /******************************************************************************
 670  *
 671  * Functions implemented in iwl-[34]*.c which are forward declared here
 672  * for use by iwl-base.c
 673  *
 674  * NOTE:  The implementation of these functions are hardware specific
 675  * which is why they are in the hardware specific files (vs. iwl-base.c)
 676  *
 677  * Naming convention --
 678  * iwl4965_         <-- Its part of iwlwifi (should be changed to iwl4965_)
 679  * iwl4965_hw_      <-- Hardware specific (implemented in iwl-XXXX.c by all HW)
 680  * iwlXXXX_     <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
 681  * iwl4965_bg_      <-- Called from work queue context
 682  * iwl4965_mac_     <-- mac80211 callback
 683  *
 684  ****************************************************************************/
 685 extern void iwl4965_hw_rx_handler_setup(struct iwl_priv *priv);
 686 extern void iwl4965_hw_setup_deferred_work(struct iwl_priv *priv);
 687 extern void iwl4965_hw_cancel_deferred_work(struct iwl_priv *priv);
 688 extern int iwl4965_hw_rxq_stop(struct iwl_priv *priv);
 689 extern int iwl4965_hw_set_hw_params(struct iwl_priv *priv);
 690 extern int iwl4965_hw_nic_init(struct iwl_priv *priv);
 691 extern int iwl4965_hw_nic_stop_master(struct iwl_priv *priv);
 692 extern void iwl4965_hw_txq_ctx_free(struct iwl_priv *priv);
 693 extern void iwl4965_hw_txq_ctx_stop(struct iwl_priv *priv);
 694 extern int iwl4965_hw_nic_reset(struct iwl_priv *priv);
 695 extern int iwl4965_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv, void *tfd,
 696                                         dma_addr_t addr, u16 len);
 697 extern int iwl4965_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl4965_tx_queue *txq);
 698 extern int iwl4965_hw_get_temperature(struct iwl_priv *priv);
 699 extern int iwl4965_hw_tx_queue_init(struct iwl_priv *priv,
 700                                 struct iwl4965_tx_queue *txq);
 701 extern unsigned int iwl4965_hw_get_beacon_cmd(struct iwl_priv *priv,
 702                                  struct iwl4965_frame *frame, u8 rate);
 703 extern int iwl4965_hw_get_rx_read(struct iwl_priv *priv);
 704 extern void iwl4965_hw_build_tx_cmd_rate(struct iwl_priv *priv,
 705                                      struct iwl_cmd *cmd,
 706                                      struct ieee80211_tx_control *ctrl,
 707                                      struct ieee80211_hdr *hdr,
 708                                      int sta_id, int tx_id);
 709 extern int iwl4965_hw_reg_send_txpower(struct iwl_priv *priv);
 710 extern int iwl4965_hw_reg_set_txpower(struct iwl_priv *priv, s8 power);
 711 extern void iwl4965_hw_rx_statistics(struct iwl_priv *priv,
 712                                  struct iwl4965_rx_mem_buffer *rxb);
 713 extern void iwl4965_disable_events(struct iwl_priv *priv);
 714 extern int iwl4965_get_temperature(const struct iwl_priv *priv);
 715
 716 /**
 717  * iwl_find_station - Find station id for a given BSSID
 718  * @bssid: MAC address of station ID to find
 719  *
 720  * NOTE:  This should not be hardware specific but the code has
 721  * not yet been merged into a single common layer for managing the
 722  * station tables.
 723  */
 724 extern u8 iwl_find_station(struct iwl_priv *priv, const u8 *bssid);
 725
 726 extern int iwl4965_hw_channel_switch(struct iwl_priv *priv, u16 channel);
 727 extern int iwl4965_tx_queue_reclaim(struct iwl_priv *priv, int txq_id, int index);
 728 extern int iwl4965_queue_space(const struct iwl4965_queue *q);
 729 struct iwl_priv;
 730
 731 extern void iwl4965_radio_kill_sw(struct iwl_priv *priv, int disable_radio);
 732 /*
 733  * Forward declare iwl-4965.c functions for iwl-base.c
 734  */
 735 extern int iwl4965_tx_queue_update_wr_ptr(struct iwl_priv *priv,
 736                                           struct iwl4965_tx_queue *txq,
 737                                           u16 byte_cnt);
 738 extern void iwl4965_add_station(struct iwl_priv *priv, const u8 *addr,
 739                                 int is_ap);
 740 extern void iwl4965_set_rxon_chain(struct iwl_priv *priv);
 741 extern int iwl4965_alive_notify(struct iwl_priv *priv);
 742 extern void iwl4965_update_rate_scaling(struct iwl_priv *priv, u8 mode);
 743 extern void iwl4965_rf_kill_ct_config(struct iwl_priv *priv);
 744 extern void iwl4965_hwrate_to_tx_control(struct iwl_priv *priv,
 745                                          u32 rate_n_flags,
 746                                          struct ieee80211_tx_control *control);
 747
 748 #ifdef CONFIG_IWL4965_HT
 749 void iwl4965_init_ht_hw_capab(struct iwl_priv *priv,
 750                               struct ieee80211_ht_info *ht_info,
 751                               enum ieee80211_band band);
 752 void iwl4965_set_rxon_ht(struct iwl_priv *priv,
 753                          struct iwl_ht_info *ht_info);
 754 void iwl4965_set_ht_add_station(struct iwl_priv *priv, u8 index,
 755                                 struct ieee80211_ht_info *sta_ht_inf);
 756 int iwl4965_mac_ampdu_action(struct ieee80211_hw *hw,
 757                                     enum ieee80211_ampdu_mlme_action action,
 758                                     const u8 *addr, u16 tid, u16 *ssn);
 759 int iwl4965_check_empty_hw_queue(struct iwl_priv *priv, int sta_id,
 760                                         u8 tid, int txq_id);
 761 #else
 762 static inline void iwl4965_init_ht_hw_capab(struct iwl_priv *priv,
 763                                             struct ieee80211_ht_info *ht_info,
 764                                             enum ieee80211_band band) {}
 765
 766 #endif /*CONFIG_IWL4965_HT */
 767 /* Structures, enum, and defines specific to the 4965 */
 768
 769 #define IWL4965_KW_SIZE 0x1000  /*4k */
 770
 771 struct iwl4965_kw {
 772         dma_addr_t dma_addr;
 773         void *v_addr;
 774         size_t size;
 775 };
 776
 777 #define IWL_CHANNEL_WIDTH_20MHZ   0
 778 #define IWL_CHANNEL_WIDTH_40MHZ   1
 779
 780 #define IWL_MIMO_PS_STATIC        0
 781 #define IWL_MIMO_PS_NONE          3
 782 #define IWL_MIMO_PS_DYNAMIC       1
 783 #define IWL_MIMO_PS_INVALID       2
 784
 785 #define IWL_OPERATION_MODE_AUTO     0
 786 #define IWL_OPERATION_MODE_HT_ONLY  1
 787 #define IWL_OPERATION_MODE_MIXED    2
 788 #define IWL_OPERATION_MODE_20MHZ    3
 789
 790 #define IWL_EXT_CHANNEL_OFFSET_NONE      0
 791 #define IWL_EXT_CHANNEL_OFFSET_ABOVE     1
 792 #define IWL_EXT_CHANNEL_OFFSET_RESERVE1  2
 793 #define IWL_EXT_CHANNEL_OFFSET_BELOW     3
 794
 795 #define NRG_NUM_PREV_STAT_L     20
 796 #define NUM_RX_CHAINS           (3)
 797
 798 #define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
 799
 800 struct iwl4965_lq_mngr {
 801         spinlock_t lock;
 802         s32 max_window_size;
 803         s32 *expected_tpt;
 804         u8 *next_higher_rate;
 805         u8 *next_lower_rate;
 806         unsigned long stamp;
 807         unsigned long stamp_last;
 808         u32 flush_time;
 809         u32 tx_packets;
 810         u8 lq_ready;
 811 };
 812
 813 /* Sensitivity and chain noise calibration */
 814 #define INTERFERENCE_DATA_AVAILABLE     __constant_cpu_to_le32(1)
 815 #define INITIALIZATION_VALUE            0xFFFF
 816 #define CAL_NUM_OF_BEACONS              20
 817 #define MAXIMUM_ALLOWED_PATHLOSS        15
 818
 819 #define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
 820
 821 #define MAX_FA_OFDM  50
 822 #define MIN_FA_OFDM  5
 823 #define MAX_FA_CCK   50
 824 #define MIN_FA_CCK   5
 825
 826 #define AUTO_CORR_STEP_OFDM       1
 827
 828 #define AUTO_CORR_STEP_CCK     3
 829 #define AUTO_CORR_MAX_TH_CCK   160
 830
 831 #define NRG_DIFF               2
 832 #define NRG_STEP_CCK           2
 833 #define NRG_MARGIN             8
 834 #define MAX_NUMBER_CCK_NO_FA 100
 835
 836 #define AUTO_CORR_CCK_MIN_VAL_DEF    (125)
 837
 838 #define CHAIN_A             0
 839 #define CHAIN_B             1
 840 #define CHAIN_C             2
 841 #define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
 842 #define ALL_BAND_FILTER                 0xFF00
 843 #define IN_BAND_FILTER                  0xFF
 844 #define MIN_AVERAGE_NOISE_MAX_VALUE     0xFFFFFFFF
 845
 846 enum iwl4965_false_alarm_state {
 847         IWL_FA_TOO_MANY = 0,
 848         IWL_FA_TOO_FEW = 1,
 849         IWL_FA_GOOD_RANGE = 2,
 850 };
 851
 852 enum iwl4965_chain_noise_state {
 853         IWL_CHAIN_NOISE_ALIVE = 0,  /* must be 0 */
 854         IWL_CHAIN_NOISE_ACCUMULATE = 1,
 855         IWL_CHAIN_NOISE_CALIBRATED = 2,
 856 };
 857
 858 enum iwl4965_calib_enabled_state {
 859         IWL_CALIB_DISABLED = 0,  /* must be 0 */
 860         IWL_CALIB_ENABLED = 1,
 861 };
 862
 863 struct statistics_general_data {
 864         u32 beacon_silence_rssi_a;
 865         u32 beacon_silence_rssi_b;
 866         u32 beacon_silence_rssi_c;
 867         u32 beacon_energy_a;
 868         u32 beacon_energy_b;
 869         u32 beacon_energy_c;
 870 };
 871
 872 #ifdef CONFIG_IWLWIFI_RUN_TIME_CALIB
 873 /* Sensitivity calib data */
 874 struct iwl_sensitivity_data {
 875         u32 auto_corr_ofdm;
 876         u32 auto_corr_ofdm_mrc;
 877         u32 auto_corr_ofdm_x1;
 878         u32 auto_corr_ofdm_mrc_x1;
 879         u32 auto_corr_cck;
 880         u32 auto_corr_cck_mrc;
 881
 882         u32 last_bad_plcp_cnt_ofdm;
 883         u32 last_fa_cnt_ofdm;
 884         u32 last_bad_plcp_cnt_cck;
 885         u32 last_fa_cnt_cck;
 886
 887         u32 nrg_curr_state;
 888         u32 nrg_prev_state;
 889         u32 nrg_value[10];
 890         u8  nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
 891         u32 nrg_silence_ref;
 892         u32 nrg_energy_idx;
 893         u32 nrg_silence_idx;
 894         u32 nrg_th_cck;
 895         s32 nrg_auto_corr_silence_diff;
 896         u32 num_in_cck_no_fa;
 897         u32 nrg_th_ofdm;
 898 };
 899
 900 /* Chain noise (differential Rx gain) calib data */
 901 struct iwl_chain_noise_data {
 902         u8 state;
 903         u16 beacon_count;
 904         u32 chain_noise_a;
 905         u32 chain_noise_b;
 906         u32 chain_noise_c;
 907         u32 chain_signal_a;
 908         u32 chain_signal_b;
 909         u32 chain_signal_c;
 910         u8 disconn_array[NUM_RX_CHAINS];
 911         u8 delta_gain_code[NUM_RX_CHAINS];
 912         u8 radio_write;
 913 };
 914 #endif /* CONFIG_IWLWIFI_RUN_TIME_CALIB */
 915
 916 #define EEPROM_SEM_TIMEOUT 10           /* milliseconds */
 917 #define EEPROM_SEM_RETRY_LIMIT 1000     /* number of attempts (not time) */
 918
 919
 920 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
 921
 922 enum {
 923         MEASUREMENT_READY = (1 << 0),
 924         MEASUREMENT_ACTIVE = (1 << 1),
 925 };
 926
 927 #endif
 928
 929 #define IWL_MAX_NUM_QUEUES      20 /* FIXME: do dynamic allocation */
 930
 931 struct iwl_priv {
 932
 933         /* ieee device used by generic ieee processing code */
 934         struct ieee80211_hw *hw;
 935         struct ieee80211_channel *ieee_channels;
 936         struct ieee80211_rate *ieee_rates;
 937         struct iwl_cfg *cfg;
 938
 939         /* temporary frame storage list */
 940         struct list_head free_frames;
 941         int frames_count;
 942
 943         enum ieee80211_band band;
 944         int alloc_rxb_skb;
 945         bool add_radiotap;
 946
 947         void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
 948                                        struct iwl4965_rx_mem_buffer *rxb);
 949
 950         struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
 951
 952 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
 953         /* spectrum measurement report caching */
 954         struct iwl4965_spectrum_notification measure_report;
 955         u8 measurement_status;
 956 #endif
 957         /* ucode beacon time */
 958         u32 ucode_beacon_time;
 959
 960         /* we allocate array of iwl4965_channel_info for NIC's valid channels.
 961          *    Access via channel # using indirect index array */
 962         struct iwl_channel_info *channel_info;  /* channel info array */
 963         u8 channel_count;       /* # of channels */
 964
 965         /* each calibration channel group in the EEPROM has a derived
 966          * clip setting for each rate. */
 967         const struct iwl4965_clip_group clip_groups[5];
 968
 969         /* thermal calibration */
 970         s32 temperature;        /* degrees Kelvin */
 971         s32 last_temperature;
 972
 973         /* Scan related variables */
 974         unsigned long last_scan_jiffies;
 975         unsigned long next_scan_jiffies;
 976         unsigned long scan_start;
 977         unsigned long scan_pass_start;
 978         unsigned long scan_start_tsf;
 979         int scan_bands;
 980         int one_direct_scan;
 981         u8 direct_ssid_len;
 982         u8 direct_ssid[IW_ESSID_MAX_SIZE];
 983         struct iwl4965_scan_cmd *scan;
 984
 985         /* spinlock */
 986         spinlock_t lock;        /* protect general shared data */
 987         spinlock_t hcmd_lock;   /* protect hcmd */
 988         struct mutex mutex;
 989
 990         /* basic pci-network driver stuff */
 991         struct pci_dev *pci_dev;
 992
 993         /* pci hardware address support */
 994         void __iomem *hw_base;
 995
 996         /* uCode images, save to reload in case of failure */
 997         struct fw_desc ucode_code;      /* runtime inst */
 998         struct fw_desc ucode_data;      /* runtime data original */
 999         struct fw_desc ucode_data_backup;       /* runtime data save/restore */
1000         struct fw_desc ucode_init;      /* initialization inst */
1001         struct fw_desc ucode_init_data; /* initialization data */
1002         struct fw_desc ucode_boot;      /* bootstrap inst */
1003
1004
1005         struct iwl4965_rxon_time_cmd rxon_timing;
1006
1007         /* We declare this const so it can only be
1008          * changed via explicit cast within the
1009          * routines that actually update the physical
1010          * hardware */
1011         const struct iwl4965_rxon_cmd active_rxon;
1012         struct iwl4965_rxon_cmd staging_rxon;
1013
1014         int error_recovering;
1015         struct iwl4965_rxon_cmd recovery_rxon;
1016
1017         /* 1st responses from initialize and runtime uCode images.
1018          * 4965's initialize alive response contains some calibration data. */
1019         struct iwl4965_init_alive_resp card_alive_init;
1020         struct iwl4965_alive_resp card_alive;
1021 #ifdef CONFIG_IWLWIFI_RFKILL
1022         struct iwl_rfkill_mngr rfkill_mngr;
1023 #endif
1024
1025 #ifdef CONFIG_IWLWIFI_LEDS
1026         struct iwl4965_led led[IWL_LED_TRG_MAX];
1027         unsigned long last_blink_time;
1028         u8 last_blink_rate;
1029         u8 allow_blinking;
1030         u64 led_tpt;
1031 #endif
1032
1033         u16 active_rate;
1034         u16 active_rate_basic;
1035
1036         u8 assoc_station_added;
1037         u8 use_ant_b_for_management_frame;      /* Tx antenna selection */
1038         u8 valid_antenna;       /* Bit mask of antennas actually connected */
1039         u8 start_calib;
1040 #ifdef CONFIG_IWLWIFI_RUN_TIME_CALIB
1041         struct iwl_sensitivity_data sensitivity_data;
1042         struct iwl_chain_noise_data chain_noise_data;
1043         __le16 sensitivity_tbl[HD_TABLE_SIZE];
1044 #endif /*CONFIG_IWLWIFI_RUN_TIME_CALIB*/
1045
1046 #ifdef CONFIG_IWL4965_HT
1047         struct iwl_ht_info current_ht_config;
1048 #endif
1049         u8 last_phy_res[100];
1050
1051         /* Rate scaling data */
1052         struct iwl4965_lq_mngr lq_mngr;
1053
1054         /* Rate scaling data */
1055         s8 data_retry_limit;
1056         u8 retry_rate;
1057
1058         wait_queue_head_t wait_command_queue;
1059
1060         int activity_timer_active;
1061
1062         /* Rx and Tx DMA processing queues */
1063         struct iwl4965_rx_queue rxq;
1064         struct iwl4965_tx_queue txq[IWL_MAX_NUM_QUEUES];
1065         unsigned long txq_ctx_active_msk;
1066         struct iwl4965_kw kw;   /* keep warm address */
1067         u32 scd_base_addr;      /* scheduler sram base address */
1068
1069         unsigned long status;
1070
1071         int last_rx_rssi;       /* From Rx packet statisitics */
1072         int last_rx_noise;      /* From beacon statistics */
1073
1074         /* counts mgmt, ctl, and data packets */
1075         struct traffic_stats {
1076                 u32 cnt;
1077                 u64 bytes;
1078         } tx_stats[3], rx_stats[3];
1079
1080         struct iwl_power_mgr power_data;
1081
1082         struct iwl4965_notif_statistics statistics;
1083         unsigned long last_statistics_time;
1084
1085         /* context information */
1086         u8 essid[IW_ESSID_MAX_SIZE];
1087         u8 essid_len;
1088         u16 rates_mask;
1089
1090         u32 power_mode;
1091         u32 antenna;
1092         u8 bssid[ETH_ALEN];
1093         u16 rts_threshold;
1094         u8 mac_addr[ETH_ALEN];
1095
1096         /*station table variables */
1097         spinlock_t sta_lock;
1098         int num_stations;
1099         struct iwl4965_station_entry stations[IWL_STATION_COUNT];
1100         struct iwl_wep_key wep_keys[WEP_KEYS_MAX];
1101         u8 default_wep_key;
1102         u8 key_mapping_key;
1103         unsigned long ucode_key_table;
1104
1105         /* Indication if ieee80211_ops->open has been called */
1106         u8 is_open;
1107
1108         u8 mac80211_registered;
1109
1110         u32 notif_missed_beacons;
1111
1112         /* Rx'd packet timing information */
1113         u32 last_beacon_time;
1114         u64 last_tsf;
1115
1116         /* Duplicate packet detection */
1117         u16 last_seq_num;
1118         u16 last_frag_num;
1119         unsigned long last_packet_time;
1120
1121         /* Hash table for finding stations in IBSS network */
1122         struct list_head ibss_mac_hash[IWL_IBSS_MAC_HASH_SIZE];
1123
1124         /* eeprom */
1125         struct iwl4965_eeprom eeprom;
1126
1127         enum ieee80211_if_types iw_mode;
1128
1129         struct sk_buff *ibss_beacon;
1130
1131         /* Last Rx'd beacon timestamp */
1132         u64 timestamp;
1133         u16 beacon_int;
1134         struct ieee80211_vif *vif;
1135
1136         struct iwl_hw_params hw_params;
1137         /* driver/uCode shared Tx Byte Counts and Rx status */
1138         void *shared_virt;
1139         /* Physical Pointer to Tx Byte Counts and Rx status */
1140         dma_addr_t shared_phys;
1141
1142         /* Current association information needed to configure the
1143          * hardware */
1144         u16 assoc_id;
1145         u16 assoc_capability;
1146         u8 ps_mode;
1147
1148         struct iwl4965_qos_info qos_data;
1149
1150         struct workqueue_struct *workqueue;
1151
1152         struct work_struct up;
1153         struct work_struct restart;
1154         struct work_struct calibrated_work;
1155         struct work_struct scan_completed;
1156         struct work_struct rx_replenish;
1157         struct work_struct rf_kill;
1158         struct work_struct abort_scan;
1159         struct work_struct update_link_led;
1160         struct work_struct auth_work;
1161         struct work_struct report_work;
1162         struct work_struct request_scan;
1163         struct work_struct beacon_update;
1164
1165         struct tasklet_struct irq_tasklet;
1166
1167         struct delayed_work init_alive_start;
1168         struct delayed_work alive_start;
1169         struct delayed_work activity_timer;
1170         struct delayed_work thermal_periodic;
1171         struct delayed_work gather_stats;
1172         struct delayed_work scan_check;
1173         struct delayed_work post_associate;
1174
1175 #define IWL_DEFAULT_TX_POWER 0x0F
1176         s8 user_txpower_limit;
1177         s8 max_channel_txpower_limit;
1178
1179 #ifdef CONFIG_PM
1180         u32 pm_state[16];
1181 #endif
1182
1183 #ifdef CONFIG_IWLWIFI_DEBUG
1184         /* debugging info */
1185         u32 framecnt_to_us;
1186         atomic_t restrict_refcnt;
1187 #ifdef CONFIG_IWLWIFI_DEBUGFS
1188         /* debugfs */
1189         struct iwl_debugfs *dbgfs;
1190 #endif /* CONFIG_IWLWIFI_DEBUGFS */
1191 #endif /* CONFIG_IWLWIFI_DEBUG */
1192
1193         struct work_struct txpower_work;
1194 #ifdef CONFIG_IWL4965_RUN_TIME_CALIB
1195         struct work_struct sensitivity_work;
1196 #endif
1197         struct timer_list statistics_periodic;
1198 }; /*iwl_priv */
1199
1200 static inline int iwl_is_associated(struct iwl_priv *priv)
1201 {
1202         return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
1203 }
1204
1205 static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
1206 {
1207         if (ch_info == NULL)
1208                 return 0;
1209         return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
1210 }
1211
1212 static inline int is_channel_narrow(const struct iwl_channel_info *ch_info)
1213 {
1214         return (ch_info->flags & EEPROM_CHANNEL_NARROW) ? 1 : 0;
1215 }
1216
1217 static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
1218 {
1219         return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
1220 }
1221
1222 static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
1223 {
1224         return ch_info->band == IEEE80211_BAND_5GHZ;
1225 }
1226
1227 static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
1228 {
1229         return ch_info->band == IEEE80211_BAND_2GHZ;
1230 }
1231
1232 static inline int is_channel_passive(const struct iwl_channel_info *ch)
1233 {
1234         return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1235 }
1236
1237 static inline int is_channel_ibss(const struct iwl_channel_info *ch)
1238 {
1239         return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1240 }
1241
1242 extern const struct iwl_channel_info *iwl_get_channel_info(
1243         const struct iwl_priv *priv, enum ieee80211_band band, u16 channel);
1244
1245 /* Requires full declaration of iwl_priv before including */
1246
1247 #endif                          /* __iwl4965_4965_h__ */