drivers/net/wireless/iwlwifi/iwl-dev.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-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_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 extern struct iwl_cfg iwl5300_agn_cfg;
  52 extern struct iwl_cfg iwl5100_agn_cfg;
  53 extern struct iwl_cfg iwl5350_agn_cfg;
  54
  55 /* Change firmware file name, using "-" and incrementing number,
  56  *   *only* when uCode interface or architecture changes so that it
  57  *   is not compatible with earlier drivers.
  58  * This number will also appear in << 8 position of 1st dword of uCode file */
  59 #define IWL4965_UCODE_API "-1"
  60
  61 /* CT-KILL constants */
  62 #define CT_KILL_THRESHOLD       110 /* in Celsius */
  63
  64 /* Default noise level to report when noise measurement is not available.
  65  *   This may be because we're:
  66  *   1)  Not associated (4965, no beacon statistics being sent to driver)
  67  *   2)  Scanning (noise measurement does not apply to associated channel)
  68  *   3)  Receiving CCK (3945 delivers noise info only for OFDM frames)
  69  * Use default noise value of -127 ... this is below the range of measurable
  70  *   Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
  71  *   Also, -127 works better than 0 when averaging frames with/without
  72  *   noise info (e.g. averaging might be done in app); measured dBm values are
  73  *   always negative ... using a negative value as the default keeps all
  74  *   averages within an s8's (used in some apps) range of negative values. */
  75 #define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
  76
  77 /*
  78  * RTS threshold here is total size [2347] minus 4 FCS bytes
  79  * Per spec:
  80  *   a value of 0 means RTS on all data/management packets
  81  *   a value > max MSDU size means no RTS
  82  * else RTS for data/management frames where MPDU is larger
  83  *   than RTS value.
  84  */
  85 #define DEFAULT_RTS_THRESHOLD     2347U
  86 #define MIN_RTS_THRESHOLD         0U
  87 #define MAX_RTS_THRESHOLD         2347U
  88 #define MAX_MSDU_SIZE             2304U
  89 #define MAX_MPDU_SIZE             2346U
  90 #define DEFAULT_BEACON_INTERVAL   100U
  91 #define DEFAULT_SHORT_RETRY_LIMIT 7U
  92 #define DEFAULT_LONG_RETRY_LIMIT  4U
  93
  94 struct iwl_rx_mem_buffer {
  95         dma_addr_t dma_addr;
  96         struct sk_buff *skb;
  97         struct list_head list;
  98 };
  99
 100 /*
 101  * Generic queue structure
 102  *
 103  * Contains common data for Rx and Tx queues
 104  */
 105 struct iwl4965_queue {
 106         int n_bd;              /* number of BDs in this queue */
 107         int write_ptr;       /* 1-st empty entry (index) host_w*/
 108         int read_ptr;         /* last used entry (index) host_r*/
 109         dma_addr_t dma_addr;   /* physical addr for BD's */
 110         int n_window;          /* safe queue window */
 111         u32 id;
 112         int low_mark;          /* low watermark, resume queue if free
 113                                 * space more than this */
 114         int high_mark;         /* high watermark, stop queue if free
 115                                 * space less than this */
 116 } __attribute__ ((packed));
 117
 118 #define MAX_NUM_OF_TBS          (20)
 119
 120 /* One for each TFD */
 121 struct iwl4965_tx_info {
 122         struct ieee80211_tx_status status;
 123         struct sk_buff *skb[MAX_NUM_OF_TBS];
 124 };
 125
 126 /**
 127  * struct iwl4965_tx_queue - Tx Queue for DMA
 128  * @q: generic Rx/Tx queue descriptor
 129  * @bd: base of circular buffer of TFDs
 130  * @cmd: array of command/Tx buffers
 131  * @dma_addr_cmd: physical address of cmd/tx buffer array
 132  * @txb: array of per-TFD driver data
 133  * @need_update: indicates need to update read/write index
 134  * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
 135  *
 136  * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
 137  * descriptors) and required locking structures.
 138  */
 139 struct iwl4965_tx_queue {
 140         struct iwl4965_queue q;
 141         struct iwl_tfd_frame *bd;
 142         struct iwl_cmd *cmd;
 143         dma_addr_t dma_addr_cmd;
 144         struct iwl4965_tx_info *txb;
 145         int need_update;
 146         int sched_retry;
 147         int active;
 148 };
 149
 150 #define IWL_NUM_SCAN_RATES         (2)
 151
 152 struct iwl4965_channel_tgd_info {
 153         u8 type;
 154         s8 max_power;
 155 };
 156
 157 struct iwl4965_channel_tgh_info {
 158         s64 last_radar_time;
 159 };
 160
 161 /* current Tx power values to use, one for each rate for each channel.
 162  * requested power is limited by:
 163  * -- regulatory EEPROM limits for this channel
 164  * -- hardware capabilities (clip-powers)
 165  * -- spectrum management
 166  * -- user preference (e.g. iwconfig)
 167  * when requested power is set, base power index must also be set. */
 168 struct iwl4965_channel_power_info {
 169         struct iwl4965_tx_power tpc;    /* actual radio and DSP gain settings */
 170         s8 power_table_index;   /* actual (compenst'd) index into gain table */
 171         s8 base_power_index;    /* gain index for power at factory temp. */
 172         s8 requested_power;     /* power (dBm) requested for this chnl/rate */
 173 };
 174
 175 /* current scan Tx power values to use, one for each scan rate for each
 176  * channel. */
 177 struct iwl4965_scan_power_info {
 178         struct iwl4965_tx_power tpc;    /* actual radio and DSP gain settings */
 179         s8 power_table_index;   /* actual (compenst'd) index into gain table */
 180         s8 requested_power;     /* scan pwr (dBm) requested for chnl/rate */
 181 };
 182
 183 /* For fat_extension_channel */
 184 enum {
 185         HT_IE_EXT_CHANNEL_NONE = 0,
 186         HT_IE_EXT_CHANNEL_ABOVE,
 187         HT_IE_EXT_CHANNEL_INVALID,
 188         HT_IE_EXT_CHANNEL_BELOW,
 189         HT_IE_EXT_CHANNEL_MAX
 190 };
 191
 192 /*
 193  * One for each channel, holds all channel setup data
 194  * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
 195  *     with one another!
 196  */
 197 #define IWL4965_MAX_RATE (33)
 198
 199 struct iwl_channel_info {
 200         struct iwl4965_channel_tgd_info tgd;
 201         struct iwl4965_channel_tgh_info tgh;
 202         struct iwl_eeprom_channel eeprom;       /* EEPROM regulatory limit */
 203         struct iwl_eeprom_channel fat_eeprom;   /* EEPROM regulatory limit for
 204                                                  * FAT channel */
 205
 206         u8 channel;       /* channel number */
 207         u8 flags;         /* flags copied from EEPROM */
 208         s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
 209         s8 curr_txpow;    /* (dBm) regulatory/spectrum/user (not h/w) limit */
 210         s8 min_power;     /* always 0 */
 211         s8 scan_power;    /* (dBm) regul. eeprom, direct scans, any rate */
 212
 213         u8 group_index;   /* 0-4, maps channel to group1/2/3/4/5 */
 214         u8 band_index;    /* 0-4, maps channel to band1/2/3/4/5 */
 215         enum ieee80211_band band;
 216
 217         /* Radio/DSP gain settings for each "normal" data Tx rate.
 218          * These include, in addition to RF and DSP gain, a few fields for
 219          *   remembering/modifying gain settings (indexes). */
 220         struct iwl4965_channel_power_info power_info[IWL4965_MAX_RATE];
 221
 222         /* FAT channel info */
 223         s8 fat_max_power_avg;   /* (dBm) regul. eeprom, normal Tx, any rate */
 224         s8 fat_curr_txpow;      /* (dBm) regulatory/spectrum/user (not h/w) */
 225         s8 fat_min_power;       /* always 0 */
 226         s8 fat_scan_power;      /* (dBm) eeprom, direct scans, any rate */
 227         u8 fat_flags;           /* flags copied from EEPROM */
 228         u8 fat_extension_channel; /* HT_IE_EXT_CHANNEL_* */
 229
 230         /* Radio/DSP gain settings for each scan rate, for directed scans. */
 231         struct iwl4965_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES];
 232 };
 233
 234 struct iwl4965_clip_group {
 235         /* maximum power level to prevent clipping for each rate, derived by
 236          *   us from this band's saturation power in EEPROM */
 237         const s8 clip_powers[IWL_MAX_RATES];
 238 };
 239
 240 #include "iwl-4965-rs.h"
 241
 242 #define IWL_TX_FIFO_AC0 0
 243 #define IWL_TX_FIFO_AC1 1
 244 #define IWL_TX_FIFO_AC2 2
 245 #define IWL_TX_FIFO_AC3 3
 246 #define IWL_TX_FIFO_HCCA_1      5
 247 #define IWL_TX_FIFO_HCCA_2      6
 248 #define IWL_TX_FIFO_NONE        7
 249
 250 /* Minimum number of queues. MAX_NUM is defined in hw specific files */
 251 #define IWL_MIN_NUM_QUEUES      4
 252
 253 /* Power management (not Tx power) structures */
 254
 255 enum iwl_pwr_src {
 256         IWL_PWR_SRC_VMAIN,
 257         IWL_PWR_SRC_VAUX,
 258 };
 259
 260 #define IEEE80211_DATA_LEN              2304
 261 #define IEEE80211_4ADDR_LEN             30
 262 #define IEEE80211_HLEN                  (IEEE80211_4ADDR_LEN)
 263 #define IEEE80211_FRAME_LEN             (IEEE80211_DATA_LEN + IEEE80211_HLEN)
 264
 265 struct iwl4965_frame {
 266         union {
 267                 struct ieee80211_hdr frame;
 268                 struct iwl4965_tx_beacon_cmd beacon;
 269                 u8 raw[IEEE80211_FRAME_LEN];
 270                 u8 cmd[360];
 271         } u;
 272         struct list_head list;
 273 };
 274
 275 #define SEQ_TO_QUEUE(x)  ((x >> 8) & 0xbf)
 276 #define QUEUE_TO_SEQ(x)  ((x & 0xbf) << 8)
 277 #define SEQ_TO_INDEX(x) ((u8)(x & 0xff))
 278 #define INDEX_TO_SEQ(x) ((u8)(x & 0xff))
 279 #define SEQ_HUGE_FRAME  (0x4000)
 280 #define SEQ_RX_FRAME    __constant_cpu_to_le16(0x8000)
 281 #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
 282 #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
 283 #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
 284
 285 enum {
 286         /* CMD_SIZE_NORMAL = 0, */
 287         CMD_SIZE_HUGE = (1 << 0),
 288         /* CMD_SYNC = 0, */
 289         CMD_ASYNC = (1 << 1),
 290         /* CMD_NO_SKB = 0, */
 291         CMD_WANT_SKB = (1 << 2),
 292 };
 293
 294 struct iwl_cmd;
 295 struct iwl_priv;
 296
 297 struct iwl_cmd_meta {
 298         struct iwl_cmd_meta *source;
 299         union {
 300                 struct sk_buff *skb;
 301                 int (*callback)(struct iwl_priv *priv,
 302                                 struct iwl_cmd *cmd, struct sk_buff *skb);
 303         } __attribute__ ((packed)) u;
 304
 305         /* The CMD_SIZE_HUGE flag bit indicates that the command
 306          * structure is stored at the end of the shared queue memory. */
 307         u32 flags;
 308
 309 } __attribute__ ((packed));
 310
 311 /**
 312  * struct iwl_cmd
 313  *
 314  * For allocation of the command and tx queues, this establishes the overall
 315  * size of the largest command we send to uCode, except for a scan command
 316  * (which is relatively huge; space is allocated separately).
 317  */
 318 struct iwl_cmd {
 319         struct iwl_cmd_meta meta;       /* driver data */
 320         struct iwl_cmd_header hdr;      /* uCode API */
 321         union {
 322                 struct iwl_addsta_cmd addsta;
 323                 struct iwl4965_led_cmd led;
 324                 u32 flags;
 325                 u8 val8;
 326                 u16 val16;
 327                 u32 val32;
 328                 struct iwl4965_bt_cmd bt;
 329                 struct iwl4965_rxon_time_cmd rxon_time;
 330                 struct iwl4965_powertable_cmd powertable;
 331                 struct iwl4965_qosparam_cmd qosparam;
 332                 struct iwl4965_tx_cmd tx;
 333                 struct iwl4965_tx_beacon_cmd tx_beacon;
 334                 struct iwl4965_rxon_assoc_cmd rxon_assoc;
 335                 u8 *indirect;
 336                 u8 payload[360];
 337         } __attribute__ ((packed)) cmd;
 338 } __attribute__ ((packed));
 339
 340 struct iwl_host_cmd {
 341         u8 id;
 342         u16 len;
 343         struct iwl_cmd_meta meta;
 344         const void *data;
 345 };
 346
 347 #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_cmd) - \
 348                               sizeof(struct iwl_cmd_meta))
 349
 350 /*
 351  * RX related structures and functions
 352  */
 353 #define RX_FREE_BUFFERS 64
 354 #define RX_LOW_WATERMARK 8
 355
 356 #define SUP_RATE_11A_MAX_NUM_CHANNELS  8
 357 #define SUP_RATE_11B_MAX_NUM_CHANNELS  4
 358 #define SUP_RATE_11G_MAX_NUM_CHANNELS  12
 359
 360 /**
 361  * struct iwl_rx_queue - Rx queue
 362  * @processed: Internal index to last handled Rx packet
 363  * @read: Shared index to newest available Rx buffer
 364  * @write: Shared index to oldest written Rx packet
 365  * @free_count: Number of pre-allocated buffers in rx_free
 366  * @rx_free: list of free SKBs for use
 367  * @rx_used: List of Rx buffers with no SKB
 368  * @need_update: flag to indicate we need to update read/write index
 369  *
 370  * NOTE:  rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers
 371  */
 372 struct iwl_rx_queue {
 373         __le32 *bd;
 374         dma_addr_t dma_addr;
 375         struct iwl_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
 376         struct iwl_rx_mem_buffer *queue[RX_QUEUE_SIZE];
 377         u32 processed;
 378         u32 read;
 379         u32 write;
 380         u32 free_count;
 381         struct list_head rx_free;
 382         struct list_head rx_used;
 383         int need_update;
 384         spinlock_t lock;
 385 };
 386
 387 #define IWL_SUPPORTED_RATES_IE_LEN         8
 388
 389 #define SCAN_INTERVAL 100
 390
 391 #define MAX_A_CHANNELS  252
 392 #define MIN_A_CHANNELS  7
 393
 394 #define MAX_B_CHANNELS  14
 395 #define MIN_B_CHANNELS  1
 396
 397 #define MAX_TID_COUNT        9
 398
 399 #define IWL_INVALID_RATE     0xFF
 400 #define IWL_INVALID_VALUE    -1
 401
 402 #ifdef CONFIG_IWL4965_HT
 403 /**
 404  * struct iwl_ht_agg -- aggregation status while waiting for block-ack
 405  * @txq_id: Tx queue used for Tx attempt
 406  * @frame_count: # frames attempted by Tx command
 407  * @wait_for_ba: Expect block-ack before next Tx reply
 408  * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
 409  * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
 410  * @bitmap1: High order, one bit for each frame pending ACK in Tx window
 411  * @rate_n_flags: Rate at which Tx was attempted
 412  *
 413  * If REPLY_TX indicates that aggregation was attempted, driver must wait
 414  * for block ack (REPLY_COMPRESSED_BA).  This struct stores tx reply info
 415  * until block ack arrives.
 416  */
 417 struct iwl_ht_agg {
 418         u16 txq_id;
 419         u16 frame_count;
 420         u16 wait_for_ba;
 421         u16 start_idx;
 422         u64 bitmap;
 423         u32 rate_n_flags;
 424 #define IWL_AGG_OFF 0
 425 #define IWL_AGG_ON 1
 426 #define IWL_EMPTYING_HW_QUEUE_ADDBA 2
 427 #define IWL_EMPTYING_HW_QUEUE_DELBA 3
 428         u8 state;
 429 };
 430
 431 #endif /* CONFIG_IWL4965_HT */
 432
 433 struct iwl_tid_data {
 434         u16 seq_number;
 435         u16 tfds_in_queue;
 436 #ifdef CONFIG_IWL4965_HT
 437         struct iwl_ht_agg agg;
 438 #endif /* CONFIG_IWL4965_HT */
 439 };
 440
 441 struct iwl_hw_key {
 442         enum ieee80211_key_alg alg;
 443         int keylen;
 444         u8 keyidx;
 445         struct ieee80211_key_conf *conf;
 446         u8 key[32];
 447 };
 448
 449 union iwl4965_ht_rate_supp {
 450         u16 rates;
 451         struct {
 452                 u8 siso_rate;
 453                 u8 mimo_rate;
 454         };
 455 };
 456
 457 #define CFG_HT_RX_AMPDU_FACTOR_DEF  (0x3)
 458 #define CFG_HT_MPDU_DENSITY_2USEC   (0x5)
 459 #define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_2USEC
 460
 461 struct iwl_ht_info {
 462         /* self configuration data */
 463         u8 is_ht;
 464         u8 supported_chan_width;
 465         u16 tx_mimo_ps_mode;
 466         u8 is_green_field;
 467         u8 sgf;                 /* HT_SHORT_GI_* short guard interval */
 468         u8 max_amsdu_size;
 469         u8 ampdu_factor;
 470         u8 mpdu_density;
 471         u8 supp_mcs_set[16];
 472         /* BSS related data */
 473         u8 control_channel;
 474         u8 extension_chan_offset;
 475         u8 tx_chan_width;
 476         u8 ht_protection;
 477         u8 non_GF_STA_present;
 478 };
 479
 480 union iwl4965_qos_capabity {
 481         struct {
 482                 u8 edca_count:4;        /* bit 0-3 */
 483                 u8 q_ack:1;             /* bit 4 */
 484                 u8 queue_request:1;     /* bit 5 */
 485                 u8 txop_request:1;      /* bit 6 */
 486                 u8 reserved:1;          /* bit 7 */
 487         } q_AP;
 488         struct {
 489                 u8 acvo_APSD:1;         /* bit 0 */
 490                 u8 acvi_APSD:1;         /* bit 1 */
 491                 u8 ac_bk_APSD:1;        /* bit 2 */
 492                 u8 ac_be_APSD:1;        /* bit 3 */
 493                 u8 q_ack:1;             /* bit 4 */
 494                 u8 max_len:2;           /* bit 5-6 */
 495                 u8 more_data_ack:1;     /* bit 7 */
 496         } q_STA;
 497         u8 val;
 498 };
 499
 500 /* QoS structures */
 501 struct iwl4965_qos_info {
 502         int qos_enable;
 503         int qos_active;
 504         union iwl4965_qos_capabity qos_cap;
 505         struct iwl4965_qosparam_cmd def_qos_parm;
 506 };
 507
 508 #define STA_PS_STATUS_WAKE             0
 509 #define STA_PS_STATUS_SLEEP            1
 510
 511 struct iwl_station_entry {
 512         struct iwl_addsta_cmd sta;
 513         struct iwl_tid_data tid[MAX_TID_COUNT];
 514         u8 used;
 515         u8 ps_status;
 516         struct iwl_hw_key keyinfo;
 517 };
 518
 519 /* one for each uCode image (inst/data, boot/init/runtime) */
 520 struct fw_desc {
 521         void *v_addr;           /* access by driver */
 522         dma_addr_t p_addr;      /* access by card's busmaster DMA */
 523         u32 len;                /* bytes */
 524 };
 525
 526 /* uCode file layout */
 527 struct iwl4965_ucode {
 528         __le32 ver;             /* major/minor/subminor */
 529         __le32 inst_size;       /* bytes of runtime instructions */
 530         __le32 data_size;       /* bytes of runtime data */
 531         __le32 init_size;       /* bytes of initialization instructions */
 532         __le32 init_data_size;  /* bytes of initialization data */
 533         __le32 boot_size;       /* bytes of bootstrap instructions */
 534         u8 data[0];             /* data in same order as "size" elements */
 535 };
 536
 537 #define IWL_IBSS_MAC_HASH_SIZE 32
 538
 539 struct iwl4965_ibss_seq {
 540         u8 mac[ETH_ALEN];
 541         u16 seq_num;
 542         u16 frag_num;
 543         unsigned long packet_time;
 544         struct list_head list;
 545 };
 546
 547 struct iwl_sensitivity_ranges {
 548         u16 min_nrg_cck;
 549         u16 max_nrg_cck;
 550
 551         u16 nrg_th_cck;
 552         u16 nrg_th_ofdm;
 553
 554         u16 auto_corr_min_ofdm;
 555         u16 auto_corr_min_ofdm_mrc;
 556         u16 auto_corr_min_ofdm_x1;
 557         u16 auto_corr_min_ofdm_mrc_x1;
 558
 559         u16 auto_corr_max_ofdm;
 560         u16 auto_corr_max_ofdm_mrc;
 561         u16 auto_corr_max_ofdm_x1;
 562         u16 auto_corr_max_ofdm_mrc_x1;
 563
 564         u16 auto_corr_max_cck;
 565         u16 auto_corr_max_cck_mrc;
 566         u16 auto_corr_min_cck;
 567         u16 auto_corr_min_cck_mrc;
 568 };
 569
 570
 571 #define IWL_FAT_CHANNEL_52 BIT(IEEE80211_BAND_5GHZ)
 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/rx_chains_num: Number of TX/RX chains
 578  * @valid_tx/rx_ant: usable antennas
 579  * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
 580  * @max_rxq_log: Log-base-2 of max_rxq_size
 581  * @rx_buf_size: Rx buffer size
 582  * @max_stations:
 583  * @bcast_sta_id:
 584  * @fat_channel: is 40MHz width possible in band 2.4
 585  * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ)
 586  * @sw_crypto: 0 for hw, 1 for sw
 587  * @max_xxx_size: for ucode uses
 588  * @ct_kill_threshold: temperature threshold
 589  * @struct iwl_sensitivity_ranges: range of sensitivity values
 590  */
 591 struct iwl_hw_params {
 592         u16 max_txq_num;
 593         u16 tx_cmd_len;
 594         u8  tx_chains_num;
 595         u8  rx_chains_num;
 596         u8  valid_tx_ant;
 597         u8  valid_rx_ant;
 598         u16 max_rxq_size;
 599         u16 max_rxq_log;
 600         u32 rx_buf_size;
 601         u32 max_pkt_size;
 602         u8  max_stations;
 603         u8  bcast_sta_id;
 604         u8 fat_channel;
 605         u8 sw_crypto;
 606         u32 max_inst_size;
 607         u32 max_data_size;
 608         u32 max_bsm_size;
 609         u32 ct_kill_threshold; /* value in hw-dependent units */
 610 #ifdef CONFIG_IWLWIFI_RUN_TIME_CALIB
 611         const struct iwl_sensitivity_ranges *sens;
 612 #endif
 613 };
 614
 615 #define HT_SHORT_GI_20MHZ_ONLY  (1 << 0)
 616 #define HT_SHORT_GI_40MHZ_ONLY  (1 << 1)
 617
 618
 619 #define IWL_RX_HDR(x) ((struct iwl4965_rx_frame_hdr *)(\
 620                        x->u.rx_frame.stats.payload + \
 621                        x->u.rx_frame.stats.phy_count))
 622 #define IWL_RX_END(x) ((struct iwl4965_rx_frame_end *)(\
 623                        IWL_RX_HDR(x)->payload + \
 624                        le16_to_cpu(IWL_RX_HDR(x)->len)))
 625 #define IWL_RX_STATS(x) (&x->u.rx_frame.stats)
 626 #define IWL_RX_DATA(x) (IWL_RX_HDR(x)->payload)
 627
 628
 629 /******************************************************************************
 630  *
 631  * Functions implemented in iwl-base.c which are forward declared here
 632  * for use by iwl-*.c
 633  *
 634  *****************************************************************************/
 635 struct iwl_addsta_cmd;
 636 extern int iwl_send_add_sta(struct iwl_priv *priv,
 637                             struct iwl_addsta_cmd *sta, u8 flags);
 638 extern u8 iwl4965_add_station_flags(struct iwl_priv *priv, const u8 *addr,
 639                           int is_ap, u8 flags, void *ht_data);
 640 extern int iwl4965_is_network_packet(struct iwl_priv *priv,
 641                                  struct ieee80211_hdr *header);
 642 extern int iwl4965_power_init_handle(struct iwl_priv *priv);
 643 extern void iwl4965_handle_data_packet_monitor(struct iwl_priv *priv,
 644                                            struct iwl_rx_mem_buffer *rxb,
 645                                            void *data, short len,
 646                                            struct ieee80211_rx_status *stats,
 647                                            u16 phy_flags);
 648 extern int iwl4965_is_duplicate_packet(struct iwl_priv *priv,
 649                                        struct ieee80211_hdr *header);
 650 extern int iwl4965_calc_db_from_ratio(int sig_ratio);
 651 extern int iwl4965_calc_sig_qual(int rssi_dbm, int noise_dbm);
 652 extern unsigned int iwl4965_fill_beacon_frame(struct iwl_priv *priv,
 653                                         struct ieee80211_hdr *hdr,
 654                                         const u8 *dest, int left);
 655 extern __le16 *ieee80211_get_qos_ctrl(struct ieee80211_hdr *hdr);
 656 extern void iwl4965_update_chain_flags(struct iwl_priv *priv);
 657 int iwl4965_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src);
 658
 659 int iwl4965_init_geos(struct iwl_priv *priv);
 660 void iwl4965_free_geos(struct iwl_priv *priv);
 661
 662 extern const u8 iwl4965_broadcast_addr[ETH_ALEN];
 663 int iwl4965_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
 664
 665 /*
 666  * Currently used by iwl-3945-rs... look at restructuring so that it doesn't
 667  * call this... todo... fix that.
 668 */
 669 extern u8 iwl4965_sync_station(struct iwl_priv *priv, int sta_id,
 670                            u16 tx_rate, u8 flags);
 671
 672 /******************************************************************************
 673  *
 674  * Functions implemented in iwl-[34]*.c which are forward declared here
 675  * for use by iwl-base.c
 676  *
 677  * NOTE:  The implementation of these functions are hardware specific
 678  * which is why they are in the hardware specific files (vs. iwl-base.c)
 679  *
 680  * Naming convention --
 681  * iwl4965_         <-- Its part of iwlwifi (should be changed to iwl4965_)
 682  * iwl4965_hw_      <-- Hardware specific (implemented in iwl-XXXX.c by all HW)
 683  * iwlXXXX_     <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
 684  * iwl4965_bg_      <-- Called from work queue context
 685  * iwl4965_mac_     <-- mac80211 callback
 686  *
 687  ****************************************************************************/
 688 extern void iwl4965_hw_setup_deferred_work(struct iwl_priv *priv);
 689 extern void iwl4965_hw_cancel_deferred_work(struct iwl_priv *priv);
 690 extern int iwl4965_hw_rxq_stop(struct iwl_priv *priv);
 691 extern int iwl4965_hw_set_hw_params(struct iwl_priv *priv);
 692 extern int iwl4965_hw_nic_stop_master(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_get_temperature(struct iwl_priv *priv);
 698 extern unsigned int iwl4965_hw_get_beacon_cmd(struct iwl_priv *priv,
 699                                  struct iwl4965_frame *frame, u8 rate);
 700 extern void iwl4965_hw_build_tx_cmd_rate(struct iwl_priv *priv,
 701                                      struct iwl_cmd *cmd,
 702                                      struct ieee80211_tx_control *ctrl,
 703                                      struct ieee80211_hdr *hdr,
 704                                      int sta_id, int tx_id);
 705 extern int iwl4965_hw_reg_send_txpower(struct iwl_priv *priv);
 706 extern int iwl4965_hw_reg_set_txpower(struct iwl_priv *priv, s8 power);
 707 extern void iwl4965_hw_rx_statistics(struct iwl_priv *priv,
 708                                  struct iwl_rx_mem_buffer *rxb);
 709 extern void iwl4965_disable_events(struct iwl_priv *priv);
 710 extern int iwl4965_get_temperature(const struct iwl_priv *priv);
 711
 712 /**
 713  * iwl_find_station - Find station id for a given BSSID
 714  * @bssid: MAC address of station ID to find
 715  *
 716  * NOTE:  This should not be hardware specific but the code has
 717  * not yet been merged into a single common layer for managing the
 718  * station tables.
 719  */
 720 extern u8 iwl_find_station(struct iwl_priv *priv, const u8 *bssid);
 721
 722 extern int iwl4965_hw_channel_switch(struct iwl_priv *priv, u16 channel);
 723 extern int iwl4965_tx_queue_reclaim(struct iwl_priv *priv, int txq_id, int index);
 724 extern int iwl4965_queue_space(const struct iwl4965_queue *q);
 725 struct iwl_priv;
 726
 727 extern void iwl4965_radio_kill_sw(struct iwl_priv *priv, int disable_radio);
 728 /*
 729  * Forward declare iwl-4965.c functions for iwl-base.c
 730  */
 731 extern int iwl4965_tx_queue_update_wr_ptr(struct iwl_priv *priv,
 732                                           struct iwl4965_tx_queue *txq,
 733                                           u16 byte_cnt);
 734 extern void iwl4965_add_station(struct iwl_priv *priv, const u8 *addr,
 735                                 int is_ap);
 736 extern int iwl4965_alive_notify(struct iwl_priv *priv);
 737 extern void iwl4965_update_rate_scaling(struct iwl_priv *priv, u8 mode);
 738 extern void iwl4965_rf_kill_ct_config(struct iwl_priv *priv);
 739 extern void iwl4965_hwrate_to_tx_control(struct iwl_priv *priv,
 740                                          u32 rate_n_flags,
 741                                          struct ieee80211_tx_control *control);
 742
 743 #ifdef CONFIG_IWL4965_HT
 744 extern void iwl4965_init_ht_hw_capab(const struct iwl_priv *priv,
 745                                 struct ieee80211_ht_info *ht_info,
 746                                 enum ieee80211_band band);
 747 void iwl4965_set_rxon_ht(struct iwl_priv *priv,
 748                          struct iwl_ht_info *ht_info);
 749 void iwl4965_set_ht_add_station(struct iwl_priv *priv, u8 index,
 750                                 struct ieee80211_ht_info *sta_ht_inf);
 751 int iwl4965_mac_ampdu_action(struct ieee80211_hw *hw,
 752                                     enum ieee80211_ampdu_mlme_action action,
 753                                     const u8 *addr, u16 tid, u16 *ssn);
 754 int iwl4965_check_empty_hw_queue(struct iwl_priv *priv, int sta_id,
 755                                         u8 tid, int txq_id);
 756 #else
 757 static inline void iwl4965_init_ht_hw_capab(const struct iwl_priv *priv,
 758                                             struct ieee80211_ht_info *ht_info,
 759                                             enum ieee80211_band band) {}
 760
 761 #endif /*CONFIG_IWL4965_HT */
 762 /* Structures, enum, and defines specific to the 4965 */
 763
 764 #define IWL4965_KW_SIZE 0x1000  /*4k */
 765
 766 struct iwl4965_kw {
 767         dma_addr_t dma_addr;
 768         void *v_addr;
 769         size_t size;
 770 };
 771
 772 #define IWL_CHANNEL_WIDTH_20MHZ   0
 773 #define IWL_CHANNEL_WIDTH_40MHZ   1
 774
 775 #define IWL_MIMO_PS_STATIC        0
 776 #define IWL_MIMO_PS_NONE          3
 777 #define IWL_MIMO_PS_DYNAMIC       1
 778 #define IWL_MIMO_PS_INVALID       2
 779
 780 #define IWL_OPERATION_MODE_AUTO     0
 781 #define IWL_OPERATION_MODE_HT_ONLY  1
 782 #define IWL_OPERATION_MODE_MIXED    2
 783 #define IWL_OPERATION_MODE_20MHZ    3
 784
 785 #define IWL_EXT_CHANNEL_OFFSET_NONE      0
 786 #define IWL_EXT_CHANNEL_OFFSET_ABOVE     1
 787 #define IWL_EXT_CHANNEL_OFFSET_RESERVE1  2
 788 #define IWL_EXT_CHANNEL_OFFSET_BELOW     3
 789
 790 #define IWL_TX_CRC_SIZE 4
 791 #define IWL_TX_DELIMITER_SIZE 4
 792
 793 #define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
 794
 795 struct iwl4965_lq_mngr {
 796         spinlock_t lock;
 797         s32 max_window_size;
 798         s32 *expected_tpt;
 799         u8 *next_higher_rate;
 800         u8 *next_lower_rate;
 801         unsigned long stamp;
 802         unsigned long stamp_last;
 803         u32 flush_time;
 804         u32 tx_packets;
 805         u8 lq_ready;
 806 };
 807
 808 /* Sensitivity and chain noise calibration */
 809 #define INTERFERENCE_DATA_AVAILABLE     __constant_cpu_to_le32(1)
 810 #define INITIALIZATION_VALUE            0xFFFF
 811 #define CAL_NUM_OF_BEACONS              20
 812 #define MAXIMUM_ALLOWED_PATHLOSS        15
 813
 814 #define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
 815
 816 #define MAX_FA_OFDM  50
 817 #define MIN_FA_OFDM  5
 818 #define MAX_FA_CCK   50
 819 #define MIN_FA_CCK   5
 820
 821 #define AUTO_CORR_STEP_OFDM       1
 822
 823 #define AUTO_CORR_STEP_CCK     3
 824 #define AUTO_CORR_MAX_TH_CCK   160
 825
 826 #define NRG_DIFF               2
 827 #define NRG_STEP_CCK           2
 828 #define NRG_MARGIN             8
 829 #define MAX_NUMBER_CCK_NO_FA 100
 830
 831 #define AUTO_CORR_CCK_MIN_VAL_DEF    (125)
 832
 833 #define CHAIN_A             0
 834 #define CHAIN_B             1
 835 #define CHAIN_C             2
 836 #define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
 837 #define ALL_BAND_FILTER                 0xFF00
 838 #define IN_BAND_FILTER                  0xFF
 839 #define MIN_AVERAGE_NOISE_MAX_VALUE     0xFFFFFFFF
 840
 841 #define NRG_NUM_PREV_STAT_L     20
 842 #define NUM_RX_CHAINS           3
 843
 844 enum iwl4965_false_alarm_state {
 845         IWL_FA_TOO_MANY = 0,
 846         IWL_FA_TOO_FEW = 1,
 847         IWL_FA_GOOD_RANGE = 2,
 848 };
 849
 850 enum iwl4965_chain_noise_state {
 851         IWL_CHAIN_NOISE_ALIVE = 0,  /* must be 0 */
 852         IWL_CHAIN_NOISE_ACCUMULATE = 1,
 853         IWL_CHAIN_NOISE_CALIBRATED = 2,
 854 };
 855
 856 enum iwl4965_calib_enabled_state {
 857         IWL_CALIB_DISABLED = 0,  /* must be 0 */
 858         IWL_CALIB_ENABLED = 1,
 859 };
 860
 861 struct statistics_general_data {
 862         u32 beacon_silence_rssi_a;
 863         u32 beacon_silence_rssi_b;
 864         u32 beacon_silence_rssi_c;
 865         u32 beacon_energy_a;
 866         u32 beacon_energy_b;
 867         u32 beacon_energy_c;
 868 };
 869
 870 #ifdef CONFIG_IWLWIFI_RUN_TIME_CALIB
 871 /* Sensitivity calib data */
 872 struct iwl_sensitivity_data {
 873         u32 auto_corr_ofdm;
 874         u32 auto_corr_ofdm_mrc;
 875         u32 auto_corr_ofdm_x1;
 876         u32 auto_corr_ofdm_mrc_x1;
 877         u32 auto_corr_cck;
 878         u32 auto_corr_cck_mrc;
 879
 880         u32 last_bad_plcp_cnt_ofdm;
 881         u32 last_fa_cnt_ofdm;
 882         u32 last_bad_plcp_cnt_cck;
 883         u32 last_fa_cnt_cck;
 884
 885         u32 nrg_curr_state;
 886         u32 nrg_prev_state;
 887         u32 nrg_value[10];
 888         u8  nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
 889         u32 nrg_silence_ref;
 890         u32 nrg_energy_idx;
 891         u32 nrg_silence_idx;
 892         u32 nrg_th_cck;
 893         s32 nrg_auto_corr_silence_diff;
 894         u32 num_in_cck_no_fa;
 895         u32 nrg_th_ofdm;
 896 };
 897
 898 /* Chain noise (differential Rx gain) calib data */
 899 struct iwl_chain_noise_data {
 900         u8 state;
 901         u16 beacon_count;
 902         u32 chain_noise_a;
 903         u32 chain_noise_b;
 904         u32 chain_noise_c;
 905         u32 chain_signal_a;
 906         u32 chain_signal_b;
 907         u32 chain_signal_c;
 908         u8 disconn_array[NUM_RX_CHAINS];
 909         u8 delta_gain_code[NUM_RX_CHAINS];
 910         u8 radio_write;
 911 };
 912 #endif /* CONFIG_IWLWIFI_RUN_TIME_CALIB */
 913
 914 #define EEPROM_SEM_TIMEOUT 10           /* milliseconds */
 915 #define EEPROM_SEM_RETRY_LIMIT 1000     /* number of attempts (not time) */
 916
 917
 918 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
 919
 920 enum {
 921         MEASUREMENT_READY = (1 << 0),
 922         MEASUREMENT_ACTIVE = (1 << 1),
 923 };
 924
 925 #endif
 926
 927 #define IWL_MAX_NUM_QUEUES      20 /* FIXME: do dynamic allocation */
 928
 929 struct iwl_priv {
 930
 931         /* ieee device used by generic ieee processing code */
 932         struct ieee80211_hw *hw;
 933         struct ieee80211_channel *ieee_channels;
 934         struct ieee80211_rate *ieee_rates;
 935         struct iwl_cfg *cfg;
 936
 937         /* temporary frame storage list */
 938         struct list_head free_frames;
 939         int frames_count;
 940
 941         enum ieee80211_band band;
 942         int alloc_rxb_skb;
 943         bool add_radiotap;
 944
 945         void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
 946                                        struct iwl_rx_mem_buffer *rxb);
 947
 948         struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
 949
 950 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
 951         /* spectrum measurement report caching */
 952         struct iwl4965_spectrum_notification measure_report;
 953         u8 measurement_status;
 954 #endif
 955         /* ucode beacon time */
 956         u32 ucode_beacon_time;
 957
 958         /* we allocate array of iwl4965_channel_info for NIC's valid channels.
 959          *    Access via channel # using indirect index array */
 960         struct iwl_channel_info *channel_info;  /* channel info array */
 961         u8 channel_count;       /* # of channels */
 962
 963         /* each calibration channel group in the EEPROM has a derived
 964          * clip setting for each rate. */
 965         const struct iwl4965_clip_group clip_groups[5];
 966
 967         /* thermal calibration */
 968         s32 temperature;        /* degrees Kelvin */
 969         s32 last_temperature;
 970
 971         /* Scan related variables */
 972         unsigned long last_scan_jiffies;
 973         unsigned long next_scan_jiffies;
 974         unsigned long scan_start;
 975         unsigned long scan_pass_start;
 976         unsigned long scan_start_tsf;
 977         int scan_bands;
 978         int one_direct_scan;
 979         u8 direct_ssid_len;
 980         u8 direct_ssid[IW_ESSID_MAX_SIZE];
 981         struct iwl4965_scan_cmd *scan;
 982
 983         /* spinlock */
 984         spinlock_t lock;        /* protect general shared data */
 985         spinlock_t hcmd_lock;   /* protect hcmd */
 986         struct mutex mutex;
 987
 988         /* basic pci-network driver stuff */
 989         struct pci_dev *pci_dev;
 990
 991         /* pci hardware address support */
 992         void __iomem *hw_base;
 993         u32  hw_rev;
 994         u32  hw_wa_rev;
 995         u8   rev_id;
 996
 997         /* uCode images, save to reload in case of failure */
 998         struct fw_desc ucode_code;      /* runtime inst */
 999         struct fw_desc ucode_data;      /* runtime data original */
1000         struct fw_desc ucode_data_backup;       /* runtime data save/restore */
1001         struct fw_desc ucode_init;      /* initialization inst */
1002         struct fw_desc ucode_init_data; /* initialization data */
1003         struct fw_desc ucode_boot;      /* bootstrap inst */
1004
1005
1006         struct iwl4965_rxon_time_cmd rxon_timing;
1007
1008         /* We declare this const so it can only be
1009          * changed via explicit cast within the
1010          * routines that actually update the physical
1011          * hardware */
1012         const struct iwl4965_rxon_cmd active_rxon;
1013         struct iwl4965_rxon_cmd staging_rxon;
1014
1015         int error_recovering;
1016         struct iwl4965_rxon_cmd recovery_rxon;
1017
1018         /* 1st responses from initialize and runtime uCode images.
1019          * 4965's initialize alive response contains some calibration data. */
1020         struct iwl4965_init_alive_resp card_alive_init;
1021         struct iwl4965_alive_resp card_alive;
1022 #ifdef CONFIG_IWLWIFI_RFKILL
1023         struct iwl_rfkill_mngr rfkill_mngr;
1024 #endif
1025
1026 #ifdef CONFIG_IWLWIFI_LEDS
1027         struct iwl4965_led led[IWL_LED_TRG_MAX];
1028         unsigned long last_blink_time;
1029         u8 last_blink_rate;
1030         u8 allow_blinking;
1031         u64 led_tpt;
1032 #endif
1033
1034         u16 active_rate;
1035         u16 active_rate_basic;
1036
1037         u8 assoc_station_added;
1038         u8 use_ant_b_for_management_frame;      /* Tx antenna selection */
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 iwl_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 iwl_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         u8 *eeprom;
1126         struct iwl_eeprom_calib_info *calib_info;
1127
1128         enum ieee80211_if_types iw_mode;
1129
1130         struct sk_buff *ibss_beacon;
1131
1132         /* Last Rx'd beacon timestamp */
1133         u64 timestamp;
1134         u16 beacon_int;
1135         struct ieee80211_vif *vif;
1136
1137         struct iwl_hw_params hw_params;
1138         /* driver/uCode shared Tx Byte Counts and Rx status */
1139         void *shared_virt;
1140         int rb_closed_offset;
1141         /* Physical Pointer to Tx Byte Counts and Rx status */
1142         dma_addr_t shared_phys;
1143
1144         /* Current association information needed to configure the
1145          * hardware */
1146         u16 assoc_id;
1147         u16 assoc_capability;
1148         u8 ps_mode;
1149
1150         struct iwl4965_qos_info qos_data;
1151
1152         struct workqueue_struct *workqueue;
1153
1154         struct work_struct up;
1155         struct work_struct restart;
1156         struct work_struct calibrated_work;
1157         struct work_struct scan_completed;
1158         struct work_struct rx_replenish;
1159         struct work_struct rf_kill;
1160         struct work_struct abort_scan;
1161         struct work_struct update_link_led;
1162         struct work_struct auth_work;
1163         struct work_struct report_work;
1164         struct work_struct request_scan;
1165         struct work_struct beacon_update;
1166         struct work_struct set_monitor;
1167
1168         struct tasklet_struct irq_tasklet;
1169
1170         struct delayed_work init_alive_start;
1171         struct delayed_work alive_start;
1172         struct delayed_work activity_timer;
1173         struct delayed_work thermal_periodic;
1174         struct delayed_work gather_stats;
1175         struct delayed_work scan_check;
1176         struct delayed_work post_associate;
1177
1178 #define IWL_DEFAULT_TX_POWER 0x0F
1179         s8 user_txpower_limit;
1180         s8 max_channel_txpower_limit;
1181
1182 #ifdef CONFIG_PM
1183         u32 pm_state[16];
1184 #endif
1185
1186 #ifdef CONFIG_IWLWIFI_DEBUG
1187         /* debugging info */
1188         u32 debug_level;
1189         u32 framecnt_to_us;
1190         atomic_t restrict_refcnt;
1191 #ifdef CONFIG_IWLWIFI_DEBUGFS
1192         /* debugfs */
1193         struct iwl_debugfs *dbgfs;
1194 #endif /* CONFIG_IWLWIFI_DEBUGFS */
1195 #endif /* CONFIG_IWLWIFI_DEBUG */
1196
1197         struct work_struct txpower_work;
1198 #ifdef CONFIG_IWL4965_RUN_TIME_CALIB
1199         struct work_struct sensitivity_work;
1200 #endif
1201         struct timer_list statistics_periodic;
1202 }; /*iwl_priv */
1203
1204 static inline int iwl_is_associated(struct iwl_priv *priv)
1205 {
1206         return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
1207 }
1208
1209 static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
1210 {
1211         if (ch_info == NULL)
1212                 return 0;
1213         return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
1214 }
1215
1216 static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
1217 {
1218         return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
1219 }
1220
1221 static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
1222 {
1223         return ch_info->band == IEEE80211_BAND_5GHZ;
1224 }
1225
1226 static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
1227 {
1228         return ch_info->band == IEEE80211_BAND_2GHZ;
1229 }
1230
1231 static inline int is_channel_passive(const struct iwl_channel_info *ch)
1232 {
1233         return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1234 }
1235
1236 static inline int is_channel_ibss(const struct iwl_channel_info *ch)
1237 {
1238         return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1239 }
1240
1241 #ifdef CONFIG_IWLWIFI_DEBUG
1242 static inline void iwl_print_hex_dump(struct iwl_priv *priv, int level,
1243                                       void *p, u32 len)
1244 {
1245         if (!(priv->debug_level & level))
1246                 return;
1247
1248         print_hex_dump(KERN_DEBUG, "iwl data: ", DUMP_PREFIX_OFFSET, 16, 1,
1249                         p, len, 1);
1250 }
1251 #else
1252 static inline void iwl_print_hex_dump(struct iwl_priv *priv, int level,
1253                                       void *p, u32 len)
1254 {
1255 }
1256 #endif
1257
1258 extern const struct iwl_channel_info *iwl_get_channel_info(
1259         const struct iwl_priv *priv, enum ieee80211_band band, u16 channel);
1260
1261 /* Requires full declaration of iwl_priv before including */
1262
1263 #endif                          /* __iwl4965_4965_h__ */