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 iwl_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 iwl_tx_info {
 122         struct sk_buff *skb[MAX_NUM_OF_TBS];
 123 };
 124
 125 /**
 126  * struct iwl_tx_queue - Tx Queue for DMA
 127  * @q: generic Rx/Tx queue descriptor
 128  * @bd: base of circular buffer of TFDs
 129  * @cmd: array of command/Tx buffers
 130  * @dma_addr_cmd: physical address of cmd/tx buffer array
 131  * @txb: array of per-TFD driver data
 132  * @need_update: indicates need to update read/write index
 133  * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
 134  *
 135  * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
 136  * descriptors) and required locking structures.
 137  */
 138 struct iwl_tx_queue {
 139         struct iwl_queue q;
 140         struct iwl_tfd_frame *bd;
 141         struct iwl_cmd *cmd;
 142         dma_addr_t dma_addr_cmd;
 143         struct iwl_tx_info *txb;
 144         int need_update;
 145         int sched_retry;
 146         int active;
 147 };
 148
 149 #define IWL_NUM_SCAN_RATES         (2)
 150
 151 struct iwl4965_channel_tgd_info {
 152         u8 type;
 153         s8 max_power;
 154 };
 155
 156 struct iwl4965_channel_tgh_info {
 157         s64 last_radar_time;
 158 };
 159
 160 /* current Tx power values to use, one for each rate for each channel.
 161  * requested power is limited by:
 162  * -- regulatory EEPROM limits for this channel
 163  * -- hardware capabilities (clip-powers)
 164  * -- spectrum management
 165  * -- user preference (e.g. iwconfig)
 166  * when requested power is set, base power index must also be set. */
 167 struct iwl4965_channel_power_info {
 168         struct iwl4965_tx_power tpc;    /* actual radio and DSP gain settings */
 169         s8 power_table_index;   /* actual (compenst'd) index into gain table */
 170         s8 base_power_index;    /* gain index for power at factory temp. */
 171         s8 requested_power;     /* power (dBm) requested for this chnl/rate */
 172 };
 173
 174 /* current scan Tx power values to use, one for each scan rate for each
 175  * channel. */
 176 struct iwl4965_scan_power_info {
 177         struct iwl4965_tx_power tpc;    /* actual radio and DSP gain settings */
 178         s8 power_table_index;   /* actual (compenst'd) index into gain table */
 179         s8 requested_power;     /* scan pwr (dBm) requested for chnl/rate */
 180 };
 181
 182 /* For fat_extension_channel */
 183 enum {
 184         HT_IE_EXT_CHANNEL_NONE = 0,
 185         HT_IE_EXT_CHANNEL_ABOVE,
 186         HT_IE_EXT_CHANNEL_INVALID,
 187         HT_IE_EXT_CHANNEL_BELOW,
 188         HT_IE_EXT_CHANNEL_MAX
 189 };
 190
 191 /*
 192  * One for each channel, holds all channel setup data
 193  * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
 194  *     with one another!
 195  */
 196 #define IWL4965_MAX_RATE (33)
 197
 198 struct iwl_channel_info {
 199         struct iwl4965_channel_tgd_info tgd;
 200         struct iwl4965_channel_tgh_info tgh;
 201         struct iwl_eeprom_channel eeprom;       /* EEPROM regulatory limit */
 202         struct iwl_eeprom_channel fat_eeprom;   /* EEPROM regulatory limit for
 203                                                  * FAT channel */
 204
 205         u8 channel;       /* channel number */
 206         u8 flags;         /* flags copied from EEPROM */
 207         s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
 208         s8 curr_txpow;    /* (dBm) regulatory/spectrum/user (not h/w) limit */
 209         s8 min_power;     /* always 0 */
 210         s8 scan_power;    /* (dBm) regul. eeprom, direct scans, any rate */
 211
 212         u8 group_index;   /* 0-4, maps channel to group1/2/3/4/5 */
 213         u8 band_index;    /* 0-4, maps channel to band1/2/3/4/5 */
 214         enum ieee80211_band band;
 215
 216         /* Radio/DSP gain settings for each "normal" data Tx rate.
 217          * These include, in addition to RF and DSP gain, a few fields for
 218          *   remembering/modifying gain settings (indexes). */
 219         struct iwl4965_channel_power_info power_info[IWL4965_MAX_RATE];
 220
 221         /* FAT channel info */
 222         s8 fat_max_power_avg;   /* (dBm) regul. eeprom, normal Tx, any rate */
 223         s8 fat_curr_txpow;      /* (dBm) regulatory/spectrum/user (not h/w) */
 224         s8 fat_min_power;       /* always 0 */
 225         s8 fat_scan_power;      /* (dBm) eeprom, direct scans, any rate */
 226         u8 fat_flags;           /* flags copied from EEPROM */
 227         u8 fat_extension_channel; /* HT_IE_EXT_CHANNEL_* */
 228
 229         /* Radio/DSP gain settings for each scan rate, for directed scans. */
 230         struct iwl4965_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES];
 231 };
 232
 233 struct iwl4965_clip_group {
 234         /* maximum power level to prevent clipping for each rate, derived by
 235          *   us from this band's saturation power in EEPROM */
 236         const s8 clip_powers[IWL_MAX_RATES];
 237 };
 238
 239 #include "iwl-4965-rs.h"
 240
 241 #define IWL_TX_FIFO_AC0 0
 242 #define IWL_TX_FIFO_AC1 1
 243 #define IWL_TX_FIFO_AC2 2
 244 #define IWL_TX_FIFO_AC3 3
 245 #define IWL_TX_FIFO_HCCA_1      5
 246 #define IWL_TX_FIFO_HCCA_2      6
 247 #define IWL_TX_FIFO_NONE        7
 248
 249 /* Minimum number of queues. MAX_NUM is defined in hw specific files */
 250 #define IWL_MIN_NUM_QUEUES      4
 251
 252 /* Power management (not Tx power) structures */
 253
 254 enum iwl_pwr_src {
 255         IWL_PWR_SRC_VMAIN,
 256         IWL_PWR_SRC_VAUX,
 257 };
 258
 259 #define IEEE80211_DATA_LEN              2304
 260 #define IEEE80211_4ADDR_LEN             30
 261 #define IEEE80211_HLEN                  (IEEE80211_4ADDR_LEN)
 262 #define IEEE80211_FRAME_LEN             (IEEE80211_DATA_LEN + IEEE80211_HLEN)
 263
 264 struct iwl_frame {
 265         union {
 266                 struct ieee80211_hdr frame;
 267                 struct iwl4965_tx_beacon_cmd beacon;
 268                 u8 raw[IEEE80211_FRAME_LEN];
 269                 u8 cmd[360];
 270         } u;
 271         struct list_head list;
 272 };
 273
 274 #define SEQ_TO_QUEUE(x)  ((x >> 8) & 0xbf)
 275 #define QUEUE_TO_SEQ(x)  ((x & 0xbf) << 8)
 276 #define SEQ_TO_INDEX(x) ((u8)(x & 0xff))
 277 #define INDEX_TO_SEQ(x) ((u8)(x & 0xff))
 278 #define SEQ_HUGE_FRAME  (0x4000)
 279 #define SEQ_RX_FRAME    __constant_cpu_to_le16(0x8000)
 280 #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
 281 #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
 282 #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
 283
 284 enum {
 285         /* CMD_SIZE_NORMAL = 0, */
 286         CMD_SIZE_HUGE = (1 << 0),
 287         /* CMD_SYNC = 0, */
 288         CMD_ASYNC = (1 << 1),
 289         /* CMD_NO_SKB = 0, */
 290         CMD_WANT_SKB = (1 << 2),
 291 };
 292
 293 struct iwl_cmd;
 294 struct iwl_priv;
 295
 296 struct iwl_cmd_meta {
 297         struct iwl_cmd_meta *source;
 298         union {
 299                 struct sk_buff *skb;
 300                 int (*callback)(struct iwl_priv *priv,
 301                                 struct iwl_cmd *cmd, struct sk_buff *skb);
 302         } __attribute__ ((packed)) u;
 303
 304         /* The CMD_SIZE_HUGE flag bit indicates that the command
 305          * structure is stored at the end of the shared queue memory. */
 306         u32 flags;
 307
 308 } __attribute__ ((packed));
 309
 310 #define IWL_CMD_MAX_PAYLOAD 640
 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 iwl_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 iwl_tx_cmd tx;
 334                 struct iwl4965_tx_beacon_cmd tx_beacon;
 335                 struct iwl4965_rxon_assoc_cmd rxon_assoc;
 336                 struct iwl_rem_sta_cmd rm_sta;
 337                 u8 *indirect;
 338                 u8 payload[IWL_CMD_MAX_PAYLOAD];
 339         } __attribute__ ((packed)) cmd;
 340 } __attribute__ ((packed));
 341
 342 struct iwl_host_cmd {
 343         u8 id;
 344         u16 len;
 345         struct iwl_cmd_meta meta;
 346         const void *data;
 347 };
 348
 349 #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_cmd) - \
 350                               sizeof(struct iwl_cmd_meta))
 351
 352 /*
 353  * RX related structures and functions
 354  */
 355 #define RX_FREE_BUFFERS 64
 356 #define RX_LOW_WATERMARK 8
 357
 358 #define SUP_RATE_11A_MAX_NUM_CHANNELS  8
 359 #define SUP_RATE_11B_MAX_NUM_CHANNELS  4
 360 #define SUP_RATE_11G_MAX_NUM_CHANNELS  12
 361
 362 /**
 363  * struct iwl_rx_queue - Rx queue
 364  * @processed: Internal index to last handled Rx packet
 365  * @read: Shared index to newest available Rx buffer
 366  * @write: Shared index to oldest written Rx packet
 367  * @free_count: Number of pre-allocated buffers in rx_free
 368  * @rx_free: list of free SKBs for use
 369  * @rx_used: List of Rx buffers with no SKB
 370  * @need_update: flag to indicate we need to update read/write index
 371  *
 372  * NOTE:  rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers
 373  */
 374 struct iwl_rx_queue {
 375         __le32 *bd;
 376         dma_addr_t dma_addr;
 377         struct iwl_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
 378         struct iwl_rx_mem_buffer *queue[RX_QUEUE_SIZE];
 379         u32 processed;
 380         u32 read;
 381         u32 write;
 382         u32 free_count;
 383         struct list_head rx_free;
 384         struct list_head rx_used;
 385         int need_update;
 386         spinlock_t lock;
 387 };
 388
 389 #define IWL_SUPPORTED_RATES_IE_LEN         8
 390
 391 #define SCAN_INTERVAL 100
 392
 393 #define MAX_A_CHANNELS  252
 394 #define MIN_A_CHANNELS  7
 395
 396 #define MAX_B_CHANNELS  14
 397 #define MIN_B_CHANNELS  1
 398
 399 #define MAX_TID_COUNT        9
 400
 401 #define IWL_INVALID_RATE     0xFF
 402 #define IWL_INVALID_VALUE    -1
 403
 404 #ifdef CONFIG_IWL4965_HT
 405 /**
 406  * struct iwl_ht_agg -- aggregation status while waiting for block-ack
 407  * @txq_id: Tx queue used for Tx attempt
 408  * @frame_count: # frames attempted by Tx command
 409  * @wait_for_ba: Expect block-ack before next Tx reply
 410  * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
 411  * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
 412  * @bitmap1: High order, one bit for each frame pending ACK in Tx window
 413  * @rate_n_flags: Rate at which Tx was attempted
 414  *
 415  * If REPLY_TX indicates that aggregation was attempted, driver must wait
 416  * for block ack (REPLY_COMPRESSED_BA).  This struct stores tx reply info
 417  * until block ack arrives.
 418  */
 419 struct iwl_ht_agg {
 420         u16 txq_id;
 421         u16 frame_count;
 422         u16 wait_for_ba;
 423         u16 start_idx;
 424         u64 bitmap;
 425         u32 rate_n_flags;
 426 #define IWL_AGG_OFF 0
 427 #define IWL_AGG_ON 1
 428 #define IWL_EMPTYING_HW_QUEUE_ADDBA 2
 429 #define IWL_EMPTYING_HW_QUEUE_DELBA 3
 430         u8 state;
 431 };
 432
 433 #endif /* CONFIG_IWL4965_HT */
 434
 435 struct iwl_tid_data {
 436         u16 seq_number;
 437         u16 tfds_in_queue;
 438 #ifdef CONFIG_IWL4965_HT
 439         struct iwl_ht_agg agg;
 440 #endif /* CONFIG_IWL4965_HT */
 441 };
 442
 443 struct iwl_hw_key {
 444         enum ieee80211_key_alg alg;
 445         int keylen;
 446         u8 keyidx;
 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 #define CFG_HT_RX_AMPDU_FACTOR_DEF  (0x3)
 459 #define CFG_HT_MPDU_DENSITY_2USEC   (0x5)
 460 #define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_2USEC
 461
 462 struct iwl_ht_info {
 463         /* self configuration data */
 464         u8 is_ht;
 465         u8 supported_chan_width;
 466         u16 tx_mimo_ps_mode;
 467         u8 is_green_field;
 468         u8 sgf;                 /* HT_SHORT_GI_* short guard interval */
 469         u8 max_amsdu_size;
 470         u8 ampdu_factor;
 471         u8 mpdu_density;
 472         u8 supp_mcs_set[16];
 473         /* BSS related data */
 474         u8 control_channel;
 475         u8 extension_chan_offset;
 476         u8 tx_chan_width;
 477         u8 ht_protection;
 478         u8 non_GF_STA_present;
 479 };
 480
 481 union iwl4965_qos_capabity {
 482         struct {
 483                 u8 edca_count:4;        /* bit 0-3 */
 484                 u8 q_ack:1;             /* bit 4 */
 485                 u8 queue_request:1;     /* bit 5 */
 486                 u8 txop_request:1;      /* bit 6 */
 487                 u8 reserved:1;          /* bit 7 */
 488         } q_AP;
 489         struct {
 490                 u8 acvo_APSD:1;         /* bit 0 */
 491                 u8 acvi_APSD:1;         /* bit 1 */
 492                 u8 ac_bk_APSD:1;        /* bit 2 */
 493                 u8 ac_be_APSD:1;        /* bit 3 */
 494                 u8 q_ack:1;             /* bit 4 */
 495                 u8 max_len:2;           /* bit 5-6 */
 496                 u8 more_data_ack:1;     /* bit 7 */
 497         } q_STA;
 498         u8 val;
 499 };
 500
 501 /* QoS structures */
 502 struct iwl4965_qos_info {
 503         int qos_enable;
 504         int qos_active;
 505         union iwl4965_qos_capabity qos_cap;
 506         struct iwl4965_qosparam_cmd def_qos_parm;
 507 };
 508
 509 #define STA_PS_STATUS_WAKE             0
 510 #define STA_PS_STATUS_SLEEP            1
 511
 512 struct iwl_station_entry {
 513         struct iwl_addsta_cmd sta;
 514         struct iwl_tid_data tid[MAX_TID_COUNT];
 515         u8 used;
 516         u8 ps_status;
 517         struct iwl_hw_key keyinfo;
 518 };
 519
 520 /* one for each uCode image (inst/data, boot/init/runtime) */
 521 struct fw_desc {
 522         void *v_addr;           /* access by driver */
 523         dma_addr_t p_addr;      /* access by card's busmaster DMA */
 524         u32 len;                /* bytes */
 525 };
 526
 527 /* uCode file layout */
 528 struct iwl4965_ucode {
 529         __le32 ver;             /* major/minor/subminor */
 530         __le32 inst_size;       /* bytes of runtime instructions */
 531         __le32 data_size;       /* bytes of runtime data */
 532         __le32 init_size;       /* bytes of initialization instructions */
 533         __le32 init_data_size;  /* bytes of initialization data */
 534         __le32 boot_size;       /* bytes of bootstrap instructions */
 535         u8 data[0];             /* data in same order as "size" elements */
 536 };
 537
 538 #define IWL_IBSS_MAC_HASH_SIZE 32
 539
 540 struct iwl4965_ibss_seq {
 541         u8 mac[ETH_ALEN];
 542         u16 seq_num;
 543         u16 frag_num;
 544         unsigned long packet_time;
 545         struct list_head list;
 546 };
 547
 548 struct iwl_sensitivity_ranges {
 549         u16 min_nrg_cck;
 550         u16 max_nrg_cck;
 551
 552         u16 nrg_th_cck;
 553         u16 nrg_th_ofdm;
 554
 555         u16 auto_corr_min_ofdm;
 556         u16 auto_corr_min_ofdm_mrc;
 557         u16 auto_corr_min_ofdm_x1;
 558         u16 auto_corr_min_ofdm_mrc_x1;
 559
 560         u16 auto_corr_max_ofdm;
 561         u16 auto_corr_max_ofdm_mrc;
 562         u16 auto_corr_max_ofdm_x1;
 563         u16 auto_corr_max_ofdm_mrc_x1;
 564
 565         u16 auto_corr_max_cck;
 566         u16 auto_corr_max_cck_mrc;
 567         u16 auto_corr_min_cck;
 568         u16 auto_corr_min_cck_mrc;
 569 };
 570
 571
 572 #define IWL_FAT_CHANNEL_52 BIT(IEEE80211_BAND_5GHZ)
 573
 574 /**
 575  * struct iwl_hw_params
 576  * @max_txq_num: Max # Tx queues supported
 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         u8  tx_chains_num;
 594         u8  rx_chains_num;
 595         u8  valid_tx_ant;
 596         u8  valid_rx_ant;
 597         u16 max_rxq_size;
 598         u16 max_rxq_log;
 599         u32 rx_buf_size;
 600         u32 max_pkt_size;
 601         u8  max_stations;
 602         u8  bcast_sta_id;
 603         u8 fat_channel;
 604         u8 sw_crypto;
 605         u32 max_inst_size;
 606         u32 max_data_size;
 607         u32 max_bsm_size;
 608         u32 ct_kill_threshold; /* value in hw-dependent units */
 609 #ifdef CONFIG_IWLWIFI_RUN_TIME_CALIB
 610         const struct iwl_sensitivity_ranges *sens;
 611 #endif
 612 };
 613
 614 #define HT_SHORT_GI_20MHZ       (1 << 0)
 615 #define HT_SHORT_GI_40MHZ       (1 << 1)
 616
 617
 618 #define IWL_RX_HDR(x) ((struct iwl4965_rx_frame_hdr *)(\
 619                        x->u.rx_frame.stats.payload + \
 620                        x->u.rx_frame.stats.phy_count))
 621 #define IWL_RX_END(x) ((struct iwl4965_rx_frame_end *)(\
 622                        IWL_RX_HDR(x)->payload + \
 623                        le16_to_cpu(IWL_RX_HDR(x)->len)))
 624 #define IWL_RX_STATS(x) (&x->u.rx_frame.stats)
 625 #define IWL_RX_DATA(x) (IWL_RX_HDR(x)->payload)
 626
 627
 628 /******************************************************************************
 629  *
 630  * Functions implemented in iwl-base.c which are forward declared here
 631  * for use by iwl-*.c
 632  *
 633  *****************************************************************************/
 634 struct iwl_addsta_cmd;
 635 extern int iwl_send_add_sta(struct iwl_priv *priv,
 636                             struct iwl_addsta_cmd *sta, u8 flags);
 637 u8 iwl_add_station_flags(struct iwl_priv *priv, const u8 *addr, int is_ap,
 638                          u8 flags, struct ieee80211_ht_info *ht_info);
 639 extern int iwl4965_is_network_packet(struct iwl_priv *priv,
 640                                  struct ieee80211_hdr *header);
 641 extern int iwl4965_power_init_handle(struct iwl_priv *priv);
 642 extern void iwl4965_handle_data_packet_monitor(struct iwl_priv *priv,
 643                                            struct iwl_rx_mem_buffer *rxb,
 644                                            void *data, short len,
 645                                            struct ieee80211_rx_status *stats,
 646                                            u16 phy_flags);
 647 extern int iwl4965_is_duplicate_packet(struct iwl_priv *priv,
 648                                        struct ieee80211_hdr *header);
 649 extern int iwl4965_calc_db_from_ratio(int sig_ratio);
 650 extern int iwl4965_calc_sig_qual(int rssi_dbm, int noise_dbm);
 651 extern unsigned int iwl4965_fill_beacon_frame(struct iwl_priv *priv,
 652                                         struct ieee80211_hdr *hdr,
 653                                         const u8 *dest, int left);
 654 extern void iwl4965_update_chain_flags(struct iwl_priv *priv);
 655 int iwl4965_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src);
 656
 657 int iwl4965_init_geos(struct iwl_priv *priv);
 658 void iwl4965_free_geos(struct iwl_priv *priv);
 659
 660 extern const u8 iwl_bcast_addr[ETH_ALEN];
 661 int iwl4965_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
 662
 663 /*
 664  * Currently used by iwl-3945-rs... look at restructuring so that it doesn't
 665  * call this... todo... fix that.
 666 */
 667 extern u8 iwl4965_sync_station(struct iwl_priv *priv, int sta_id,
 668                            u16 tx_rate, u8 flags);
 669
 670 /******************************************************************************
 671  *
 672  * Functions implemented in iwl-[34]*.c which are forward declared here
 673  * for use by iwl-base.c
 674  *
 675  * NOTE:  The implementation of these functions are hardware specific
 676  * which is why they are in the hardware specific files (vs. iwl-base.c)
 677  *
 678  * Naming convention --
 679  * iwl4965_         <-- Its part of iwlwifi (should be changed to iwl4965_)
 680  * iwl4965_hw_      <-- Hardware specific (implemented in iwl-XXXX.c by all HW)
 681  * iwlXXXX_     <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
 682  * iwl4965_bg_      <-- Called from work queue context
 683  * iwl4965_mac_     <-- mac80211 callback
 684  *
 685  ****************************************************************************/
 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_set_hw_params(struct iwl_priv *priv);
 689 extern int iwl_rxq_stop(struct iwl_priv *priv);
 690 extern void iwl_txq_ctx_stop(struct iwl_priv *priv);
 691 extern int iwl4965_hw_get_temperature(struct iwl_priv *priv);
 692 extern unsigned int iwl4965_hw_get_beacon_cmd(struct iwl_priv *priv,
 693                                  struct iwl_frame *frame, u8 rate);
 694 extern void iwl4965_hw_build_tx_cmd_rate(struct iwl_priv *priv,
 695                                      struct iwl_cmd *cmd,
 696                                      struct ieee80211_tx_info *info,
 697                                      struct ieee80211_hdr *hdr,
 698                                      int sta_id, int tx_id);
 699 extern int iwl4965_hw_reg_send_txpower(struct iwl_priv *priv);
 700 extern int iwl4965_hw_reg_set_txpower(struct iwl_priv *priv, s8 power);
 701 extern void iwl4965_hw_rx_statistics(struct iwl_priv *priv,
 702                                  struct iwl_rx_mem_buffer *rxb);
 703 extern void iwl4965_disable_events(struct iwl_priv *priv);
 704 extern int iwl4965_get_temperature(const struct iwl_priv *priv);
 705
 706 /**
 707  * iwl_find_station - Find station id for a given BSSID
 708  * @bssid: MAC address of station ID to find
 709  *
 710  * NOTE:  This should not be hardware specific but the code has
 711  * not yet been merged into a single common layer for managing the
 712  * station tables.
 713  */
 714 extern u8 iwl_find_station(struct iwl_priv *priv, const u8 *bssid);
 715
 716 extern int iwl4965_hw_channel_switch(struct iwl_priv *priv, u16 channel);
 717 extern int iwl_queue_space(const struct iwl_queue *q);
 718 static inline int iwl_queue_used(const struct iwl_queue *q, int i)
 719 {
 720         return q->write_ptr > q->read_ptr ?
 721                 (i >= q->read_ptr && i < q->write_ptr) :
 722                 !(i < q->read_ptr && i >= q->write_ptr);
 723 }
 724
 725
 726 static inline u8 get_cmd_index(struct iwl_queue *q, u32 index, int is_huge)
 727 {
 728         /* This is for scan command, the big buffer at end of command array */
 729         if (is_huge)
 730                 return q->n_window;     /* must be power of 2 */
 731
 732         /* Otherwise, use normal size buffers */
 733         return index & (q->n_window - 1);
 734 }
 735
 736
 737 struct iwl_priv;
 738
 739 extern void iwl4965_radio_kill_sw(struct iwl_priv *priv, int disable_radio);
 740 /*
 741  * Forward declare iwl-4965.c functions for iwl-base.c
 742  */
 743 extern int iwl4965_tx_queue_update_wr_ptr(struct iwl_priv *priv,
 744                                           struct iwl_tx_queue *txq,
 745                                           u16 byte_cnt);
 746 extern int iwl4965_alive_notify(struct iwl_priv *priv);
 747 extern void iwl4965_update_rate_scaling(struct iwl_priv *priv, u8 mode);
 748 extern void iwl4965_rf_kill_ct_config(struct iwl_priv *priv);
 749 extern void iwl4965_hwrate_to_tx_control(struct iwl_priv *priv,
 750                                          u32 rate_n_flags,
 751                                          struct ieee80211_tx_info *info);
 752
 753 #ifdef CONFIG_IWL4965_HT
 754 extern void iwl4965_init_ht_hw_capab(const struct iwl_priv *priv,
 755                                 struct ieee80211_ht_info *ht_info,
 756                                 enum ieee80211_band band);
 757 void iwl4965_set_rxon_ht(struct iwl_priv *priv,
 758                          struct iwl_ht_info *ht_info);
 759 int iwl4965_mac_ampdu_action(struct ieee80211_hw *hw,
 760                                     enum ieee80211_ampdu_mlme_action action,
 761                                     const u8 *addr, u16 tid, u16 *ssn);
 762 int iwl4965_check_empty_hw_queue(struct iwl_priv *priv, int sta_id,
 763                                         u8 tid, int txq_id);
 764 #else
 765 static inline void iwl4965_init_ht_hw_capab(const struct iwl_priv *priv,
 766                                             struct ieee80211_ht_info *ht_info,
 767                                             enum ieee80211_band band) {}
 768
 769 #endif /*CONFIG_IWL4965_HT */
 770 /* Structures, enum, and defines specific to the 4965 */
 771
 772 #define IWL_KW_SIZE 0x1000      /*4k */
 773
 774 struct iwl_kw {
 775         dma_addr_t dma_addr;
 776         void *v_addr;
 777         size_t size;
 778 };
 779
 780 #define IWL_CHANNEL_WIDTH_20MHZ   0
 781 #define IWL_CHANNEL_WIDTH_40MHZ   1
 782
 783 #define IWL_MIMO_PS_STATIC        0
 784 #define IWL_MIMO_PS_NONE          3
 785 #define IWL_MIMO_PS_DYNAMIC       1
 786 #define IWL_MIMO_PS_INVALID       2
 787
 788 #define IWL_OPERATION_MODE_AUTO     0
 789 #define IWL_OPERATION_MODE_HT_ONLY  1
 790 #define IWL_OPERATION_MODE_MIXED    2
 791 #define IWL_OPERATION_MODE_20MHZ    3
 792
 793 #define IWL_EXT_CHANNEL_OFFSET_NONE      0
 794 #define IWL_EXT_CHANNEL_OFFSET_ABOVE     1
 795 #define IWL_EXT_CHANNEL_OFFSET_RESERVE1  2
 796 #define IWL_EXT_CHANNEL_OFFSET_BELOW     3
 797
 798 #define IWL_TX_CRC_SIZE 4
 799 #define IWL_TX_DELIMITER_SIZE 4
 800
 801 #define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
 802
 803 struct iwl4965_lq_mngr {
 804         spinlock_t lock;
 805         s32 max_window_size;
 806         s32 *expected_tpt;
 807         u8 *next_higher_rate;
 808         u8 *next_lower_rate;
 809         unsigned long stamp;
 810         unsigned long stamp_last;
 811         u32 flush_time;
 812         u32 tx_packets;
 813         u8 lq_ready;
 814 };
 815
 816 /* Sensitivity and chain noise calibration */
 817 #define INTERFERENCE_DATA_AVAILABLE     __constant_cpu_to_le32(1)
 818 #define INITIALIZATION_VALUE            0xFFFF
 819 #define CAL_NUM_OF_BEACONS              20
 820 #define MAXIMUM_ALLOWED_PATHLOSS        15
 821
 822 #define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
 823
 824 #define MAX_FA_OFDM  50
 825 #define MIN_FA_OFDM  5
 826 #define MAX_FA_CCK   50
 827 #define MIN_FA_CCK   5
 828
 829 #define AUTO_CORR_STEP_OFDM       1
 830
 831 #define AUTO_CORR_STEP_CCK     3
 832 #define AUTO_CORR_MAX_TH_CCK   160
 833
 834 #define NRG_DIFF               2
 835 #define NRG_STEP_CCK           2
 836 #define NRG_MARGIN             8
 837 #define MAX_NUMBER_CCK_NO_FA 100
 838
 839 #define AUTO_CORR_CCK_MIN_VAL_DEF    (125)
 840
 841 #define CHAIN_A             0
 842 #define CHAIN_B             1
 843 #define CHAIN_C             2
 844 #define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
 845 #define ALL_BAND_FILTER                 0xFF00
 846 #define IN_BAND_FILTER                  0xFF
 847 #define MIN_AVERAGE_NOISE_MAX_VALUE     0xFFFFFFFF
 848
 849 #define NRG_NUM_PREV_STAT_L     20
 850 #define NUM_RX_CHAINS           3
 851
 852 enum iwl4965_false_alarm_state {
 853         IWL_FA_TOO_MANY = 0,
 854         IWL_FA_TOO_FEW = 1,
 855         IWL_FA_GOOD_RANGE = 2,
 856 };
 857
 858 enum iwl4965_chain_noise_state {
 859         IWL_CHAIN_NOISE_ALIVE = 0,  /* must be 0 */
 860         IWL_CHAIN_NOISE_ACCUMULATE = 1,
 861         IWL_CHAIN_NOISE_CALIBRATED = 2,
 862 };
 863
 864 enum iwl4965_calib_enabled_state {
 865         IWL_CALIB_DISABLED = 0,  /* must be 0 */
 866         IWL_CALIB_ENABLED = 1,
 867 };
 868
 869 struct statistics_general_data {
 870         u32 beacon_silence_rssi_a;
 871         u32 beacon_silence_rssi_b;
 872         u32 beacon_silence_rssi_c;
 873         u32 beacon_energy_a;
 874         u32 beacon_energy_b;
 875         u32 beacon_energy_c;
 876 };
 877
 878 struct iwl_calib_results {
 879         void *tx_iq_res;
 880         void *tx_iq_perd_res;
 881         void *lo_res;
 882         u32 tx_iq_res_len;
 883         u32 tx_iq_perd_res_len;
 884         u32 lo_res_len;
 885 };
 886
 887 enum ucode_type {
 888         UCODE_NONE = 0,
 889         UCODE_INIT,
 890         UCODE_RT
 891 };
 892
 893 #ifdef CONFIG_IWLWIFI_RUN_TIME_CALIB
 894 /* Sensitivity calib data */
 895 struct iwl_sensitivity_data {
 896         u32 auto_corr_ofdm;
 897         u32 auto_corr_ofdm_mrc;
 898         u32 auto_corr_ofdm_x1;
 899         u32 auto_corr_ofdm_mrc_x1;
 900         u32 auto_corr_cck;
 901         u32 auto_corr_cck_mrc;
 902
 903         u32 last_bad_plcp_cnt_ofdm;
 904         u32 last_fa_cnt_ofdm;
 905         u32 last_bad_plcp_cnt_cck;
 906         u32 last_fa_cnt_cck;
 907
 908         u32 nrg_curr_state;
 909         u32 nrg_prev_state;
 910         u32 nrg_value[10];
 911         u8  nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
 912         u32 nrg_silence_ref;
 913         u32 nrg_energy_idx;
 914         u32 nrg_silence_idx;
 915         u32 nrg_th_cck;
 916         s32 nrg_auto_corr_silence_diff;
 917         u32 num_in_cck_no_fa;
 918         u32 nrg_th_ofdm;
 919 };
 920
 921 /* Chain noise (differential Rx gain) calib data */
 922 struct iwl_chain_noise_data {
 923         u8 state;
 924         u16 beacon_count;
 925         u32 chain_noise_a;
 926         u32 chain_noise_b;
 927         u32 chain_noise_c;
 928         u32 chain_signal_a;
 929         u32 chain_signal_b;
 930         u32 chain_signal_c;
 931         u8 disconn_array[NUM_RX_CHAINS];
 932         u8 delta_gain_code[NUM_RX_CHAINS];
 933         u8 radio_write;
 934 };
 935 #endif /* CONFIG_IWLWIFI_RUN_TIME_CALIB */
 936
 937 #define EEPROM_SEM_TIMEOUT 10           /* milliseconds */
 938 #define EEPROM_SEM_RETRY_LIMIT 1000     /* number of attempts (not time) */
 939
 940
 941 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
 942
 943 enum {
 944         MEASUREMENT_READY = (1 << 0),
 945         MEASUREMENT_ACTIVE = (1 << 1),
 946 };
 947
 948 #endif
 949
 950 #define IWL_MAX_NUM_QUEUES      20 /* FIXME: do dynamic allocation */
 951
 952 struct iwl_priv {
 953
 954         /* ieee device used by generic ieee processing code */
 955         struct ieee80211_hw *hw;
 956         struct ieee80211_channel *ieee_channels;
 957         struct ieee80211_rate *ieee_rates;
 958         struct iwl_cfg *cfg;
 959
 960         /* temporary frame storage list */
 961         struct list_head free_frames;
 962         int frames_count;
 963
 964         enum ieee80211_band band;
 965         int alloc_rxb_skb;
 966         bool add_radiotap;
 967
 968         void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
 969                                        struct iwl_rx_mem_buffer *rxb);
 970
 971         struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
 972
 973 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
 974         /* spectrum measurement report caching */
 975         struct iwl4965_spectrum_notification measure_report;
 976         u8 measurement_status;
 977 #endif
 978         /* ucode beacon time */
 979         u32 ucode_beacon_time;
 980
 981         /* we allocate array of iwl4965_channel_info for NIC's valid channels.
 982          *    Access via channel # using indirect index array */
 983         struct iwl_channel_info *channel_info;  /* channel info array */
 984         u8 channel_count;       /* # of channels */
 985
 986         /* each calibration channel group in the EEPROM has a derived
 987          * clip setting for each rate. */
 988         const struct iwl4965_clip_group clip_groups[5];
 989
 990         /* thermal calibration */
 991         s32 temperature;        /* degrees Kelvin */
 992         s32 last_temperature;
 993
 994         /* init calibration results */
 995         struct iwl_calib_results calib_results;
 996
 997         /* Scan related variables */
 998         unsigned long last_scan_jiffies;
 999         unsigned long next_scan_jiffies;
1000         unsigned long scan_start;
1001         unsigned long scan_pass_start;
1002         unsigned long scan_start_tsf;
1003         int scan_bands;
1004         int one_direct_scan;
1005         u8 direct_ssid_len;
1006         u8 direct_ssid[IW_ESSID_MAX_SIZE];
1007         struct iwl4965_scan_cmd *scan;
1008
1009         /* spinlock */
1010         spinlock_t lock;        /* protect general shared data */
1011         spinlock_t hcmd_lock;   /* protect hcmd */
1012         struct mutex mutex;
1013
1014         /* basic pci-network driver stuff */
1015         struct pci_dev *pci_dev;
1016
1017         /* pci hardware address support */
1018         void __iomem *hw_base;
1019         u32  hw_rev;
1020         u32  hw_wa_rev;
1021         u8   rev_id;
1022
1023         /* uCode images, save to reload in case of failure */
1024         struct fw_desc ucode_code;      /* runtime inst */
1025         struct fw_desc ucode_data;      /* runtime data original */
1026         struct fw_desc ucode_data_backup;       /* runtime data save/restore */
1027         struct fw_desc ucode_init;      /* initialization inst */
1028         struct fw_desc ucode_init_data; /* initialization data */
1029         struct fw_desc ucode_boot;      /* bootstrap inst */
1030         enum ucode_type ucode_type;
1031         u8 ucode_write_complete;        /* the image write is complete */
1032
1033
1034         struct iwl4965_rxon_time_cmd rxon_timing;
1035
1036         /* We declare this const so it can only be
1037          * changed via explicit cast within the
1038          * routines that actually update the physical
1039          * hardware */
1040         const struct iwl_rxon_cmd active_rxon;
1041         struct iwl_rxon_cmd staging_rxon;
1042
1043         int error_recovering;
1044         struct iwl_rxon_cmd recovery_rxon;
1045
1046         /* 1st responses from initialize and runtime uCode images.
1047          * 4965's initialize alive response contains some calibration data. */
1048         struct iwl_init_alive_resp card_alive_init;
1049         struct iwl_alive_resp card_alive;
1050 #ifdef CONFIG_IWLWIFI_RFKILL
1051         struct iwl_rfkill_mngr rfkill_mngr;
1052 #endif
1053
1054 #ifdef CONFIG_IWLWIFI_LEDS
1055         struct iwl4965_led led[IWL_LED_TRG_MAX];
1056         unsigned long last_blink_time;
1057         u8 last_blink_rate;
1058         u8 allow_blinking;
1059         u64 led_tpt;
1060 #endif
1061
1062         u16 active_rate;
1063         u16 active_rate_basic;
1064
1065         u8 assoc_station_added;
1066         u8 use_ant_b_for_management_frame;      /* Tx antenna selection */
1067         u8 start_calib;
1068 #ifdef CONFIG_IWLWIFI_RUN_TIME_CALIB
1069         struct iwl_sensitivity_data sensitivity_data;
1070         struct iwl_chain_noise_data chain_noise_data;
1071         __le16 sensitivity_tbl[HD_TABLE_SIZE];
1072 #endif /*CONFIG_IWLWIFI_RUN_TIME_CALIB*/
1073
1074 #ifdef CONFIG_IWL4965_HT
1075         struct iwl_ht_info current_ht_config;
1076 #endif
1077         u8 last_phy_res[100];
1078
1079         /* Rate scaling data */
1080         struct iwl4965_lq_mngr lq_mngr;
1081
1082         /* Rate scaling data */
1083         s8 data_retry_limit;
1084         u8 retry_rate;
1085
1086         wait_queue_head_t wait_command_queue;
1087
1088         int activity_timer_active;
1089
1090         /* Rx and Tx DMA processing queues */
1091         struct iwl_rx_queue rxq;
1092         struct iwl_tx_queue txq[IWL_MAX_NUM_QUEUES];
1093         unsigned long txq_ctx_active_msk;
1094         struct iwl_kw kw;       /* keep warm address */
1095         u32 scd_base_addr;      /* scheduler sram base address */
1096
1097         unsigned long status;
1098
1099         int last_rx_rssi;       /* From Rx packet statisitics */
1100         int last_rx_noise;      /* From beacon statistics */
1101
1102         /* counts mgmt, ctl, and data packets */
1103         struct traffic_stats {
1104                 u32 cnt;
1105                 u64 bytes;
1106         } tx_stats[3], rx_stats[3];
1107
1108         struct iwl_power_mgr power_data;
1109
1110         struct iwl4965_notif_statistics statistics;
1111         unsigned long last_statistics_time;
1112
1113         /* context information */
1114         u8 essid[IW_ESSID_MAX_SIZE];
1115         u8 essid_len;
1116         u16 rates_mask;
1117
1118         u32 power_mode;
1119         u32 antenna;
1120         u8 bssid[ETH_ALEN];
1121         u16 rts_threshold;
1122         u8 mac_addr[ETH_ALEN];
1123
1124         /*station table variables */
1125         spinlock_t sta_lock;
1126         int num_stations;
1127         struct iwl_station_entry stations[IWL_STATION_COUNT];
1128         struct iwl_wep_key wep_keys[WEP_KEYS_MAX];
1129         u8 default_wep_key;
1130         u8 key_mapping_key;
1131         unsigned long ucode_key_table;
1132
1133         /* Indication if ieee80211_ops->open has been called */
1134         u8 is_open;
1135
1136         u8 mac80211_registered;
1137
1138         /* Rx'd packet timing information */
1139         u32 last_beacon_time;
1140         u64 last_tsf;
1141
1142         /* Duplicate packet detection */
1143         u16 last_seq_num;
1144         u16 last_frag_num;
1145         unsigned long last_packet_time;
1146
1147         /* Hash table for finding stations in IBSS network */
1148         struct list_head ibss_mac_hash[IWL_IBSS_MAC_HASH_SIZE];
1149
1150         /* eeprom */
1151         u8 *eeprom;
1152         struct iwl_eeprom_calib_info *calib_info;
1153
1154         enum ieee80211_if_types iw_mode;
1155
1156         struct sk_buff *ibss_beacon;
1157
1158         /* Last Rx'd beacon timestamp */
1159         u64 timestamp;
1160         u16 beacon_int;
1161         struct ieee80211_vif *vif;
1162
1163         struct iwl_hw_params hw_params;
1164         /* driver/uCode shared Tx Byte Counts and Rx status */
1165         void *shared_virt;
1166         int rb_closed_offset;
1167         /* Physical Pointer to Tx Byte Counts and Rx status */
1168         dma_addr_t shared_phys;
1169
1170         /* Current association information needed to configure the
1171          * hardware */
1172         u16 assoc_id;
1173         u16 assoc_capability;
1174         u8 ps_mode;
1175
1176         struct iwl4965_qos_info qos_data;
1177
1178         struct workqueue_struct *workqueue;
1179
1180         struct work_struct up;
1181         struct work_struct restart;
1182         struct work_struct calibrated_work;
1183         struct work_struct scan_completed;
1184         struct work_struct rx_replenish;
1185         struct work_struct rf_kill;
1186         struct work_struct abort_scan;
1187         struct work_struct update_link_led;
1188         struct work_struct auth_work;
1189         struct work_struct report_work;
1190         struct work_struct request_scan;
1191         struct work_struct beacon_update;
1192         struct work_struct set_monitor;
1193
1194         struct tasklet_struct irq_tasklet;
1195
1196         struct delayed_work init_alive_start;
1197         struct delayed_work alive_start;
1198         struct delayed_work activity_timer;
1199         struct delayed_work thermal_periodic;
1200         struct delayed_work gather_stats;
1201         struct delayed_work scan_check;
1202         struct delayed_work post_associate;
1203
1204 #define IWL_DEFAULT_TX_POWER 0x0F
1205         s8 user_txpower_limit;
1206         s8 max_channel_txpower_limit;
1207
1208 #ifdef CONFIG_PM
1209         u32 pm_state[16];
1210 #endif
1211
1212 #ifdef CONFIG_IWLWIFI_DEBUG
1213         /* debugging info */
1214         u32 debug_level;
1215         u32 framecnt_to_us;
1216         atomic_t restrict_refcnt;
1217 #ifdef CONFIG_IWLWIFI_DEBUGFS
1218         /* debugfs */
1219         struct iwl_debugfs *dbgfs;
1220 #endif /* CONFIG_IWLWIFI_DEBUGFS */
1221 #endif /* CONFIG_IWLWIFI_DEBUG */
1222
1223         struct work_struct txpower_work;
1224 #ifdef CONFIG_IWLWIFI_RUN_TIME_CALIB
1225         u32 disable_sens_cal;
1226         u32 disable_chain_noise_cal;
1227 #endif /* CONFIG_IWLWIFI_RUN_TIME_CALIB */
1228 #ifdef CONFIG_IWL4965_RUN_TIME_CALIB
1229         struct work_struct sensitivity_work;
1230 #endif /* CONFIG_IWL4965_RUN_TIME_CALIB */
1231         struct timer_list statistics_periodic;
1232 }; /*iwl_priv */
1233
1234 static inline void iwl_txq_ctx_activate(struct iwl_priv *priv, int txq_id)
1235 {
1236         set_bit(txq_id, &priv->txq_ctx_active_msk);
1237 }
1238
1239 static inline void iwl_txq_ctx_deactivate(struct iwl_priv *priv, int txq_id)
1240 {
1241         clear_bit(txq_id, &priv->txq_ctx_active_msk);
1242 }
1243
1244 #ifdef CONFIG_IWLWIF_DEBUG
1245 const char *iwl_get_tx_fail_reason(u32 status);
1246 #else
1247 static inline const char *iwl_get_tx_fail_reason(u32 status) { return ""; }
1248 #endif
1249
1250
1251 #ifdef CONFIG_IWL4965_HT
1252 static inline int iwl_get_ra_sta_id(struct iwl_priv *priv,
1253                                     struct ieee80211_hdr *hdr)
1254 {
1255         if (priv->iw_mode == IEEE80211_IF_TYPE_STA) {
1256                 return IWL_AP_ID;
1257         } else {
1258                 u8 *da = ieee80211_get_DA(hdr);
1259                 return iwl_find_station(priv, da);
1260         }
1261 }
1262
1263 static inline struct ieee80211_hdr *iwl_tx_queue_get_hdr(struct iwl_priv *priv,
1264                                                          int txq_id, int idx)
1265 {
1266         if (priv->txq[txq_id].txb[idx].skb[0])
1267                 return (struct ieee80211_hdr *)priv->txq[txq_id].
1268                                 txb[idx].skb[0]->data;
1269         return NULL;
1270 }
1271 #endif
1272
1273
1274 static inline int iwl_is_associated(struct iwl_priv *priv)
1275 {
1276         return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
1277 }
1278
1279 static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
1280 {
1281         if (ch_info == NULL)
1282                 return 0;
1283         return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
1284 }
1285
1286 static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
1287 {
1288         return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
1289 }
1290
1291 static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
1292 {
1293         return ch_info->band == IEEE80211_BAND_5GHZ;
1294 }
1295
1296 static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
1297 {
1298         return ch_info->band == IEEE80211_BAND_2GHZ;
1299 }
1300
1301 static inline int is_channel_passive(const struct iwl_channel_info *ch)
1302 {
1303         return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1304 }
1305
1306 static inline int is_channel_ibss(const struct iwl_channel_info *ch)
1307 {
1308         return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1309 }
1310
1311 #ifdef CONFIG_IWLWIFI_DEBUG
1312 static inline void iwl_print_hex_dump(struct iwl_priv *priv, int level,
1313                                       void *p, u32 len)
1314 {
1315         if (!(priv->debug_level & level))
1316                 return;
1317
1318         print_hex_dump(KERN_DEBUG, "iwl data: ", DUMP_PREFIX_OFFSET, 16, 1,
1319                         p, len, 1);
1320 }
1321 #else
1322 static inline void iwl_print_hex_dump(struct iwl_priv *priv, int level,
1323                                       void *p, u32 len)
1324 {
1325 }
1326 #endif
1327
1328 extern const struct iwl_channel_info *iwl_get_channel_info(
1329         const struct iwl_priv *priv, enum ieee80211_band band, u16 channel);
1330
1331 /* Requires full declaration of iwl_priv before including */
1332
1333 #endif                          /* __iwl4965_4965_h__ */