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

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2003 - 2008 Intel Corporation. All rights reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of version 2 of the GNU General Public License as
   7  * published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12  * more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along with
  15  * this program; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
  17  *
  18  * The full GNU General Public License is included in this distribution in the
  19  * file called LICENSE.
  20  *
  21  * Contact Information:
  22  * James P. Ketrenos <ipw2100-admin@linux.intel.com>
  23  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  24  *
  25  *****************************************************************************/
  26 /*
  27  * Please use this file (iwl-4965.h) for driver implementation definitions.
  28  * Please use iwl-4965-commands.h for uCode API definitions.
  29  * Please use iwl-4965-hw.h for hardware-related definitions.
  30  */
  31
  32 #ifndef __iwl_4965_h__
  33 #define __iwl_4965_h__
  34
  35 #include <linux/pci.h> /* for struct pci_device_id */
  36 #include <linux/kernel.h>
  37 #include <net/ieee80211_radiotap.h>
  38
  39 #define DRV_NAME        "iwl4965"
  40 #include "iwl-rfkill.h"
  41 #include "iwl-eeprom.h"
  42 #include "iwl-4965-hw.h"
  43 #include "iwl-csr.h"
  44 #include "iwl-prph.h"
  45 #include "iwl-debug.h"
  46 #include "iwl-led.h"
  47 #include "iwl-power.h"
  48
  49 /* configuration for the iwl4965 */
  50 extern struct iwl_cfg iwl4965_agn_cfg;
  51
  52 /* Change firmware file name, using "-" and incrementing number,
  53  *   *only* when uCode interface or architecture changes so that it
  54  *   is not compatible with earlier drivers.
  55  * This number will also appear in << 8 position of 1st dword of uCode file */
  56 #define IWL4965_UCODE_API "-1"
  57
  58 /* CT-KILL constants */
  59 #define CT_KILL_THRESHOLD       110 /* in Celsius */
  60
  61 /* Default noise level to report when noise measurement is not available.
  62  *   This may be because we're:
  63  *   1)  Not associated (4965, no beacon statistics being sent to driver)
  64  *   2)  Scanning (noise measurement does not apply to associated channel)
  65  *   3)  Receiving CCK (3945 delivers noise info only for OFDM frames)
  66  * Use default noise value of -127 ... this is below the range of measurable
  67  *   Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
  68  *   Also, -127 works better than 0 when averaging frames with/without
  69  *   noise info (e.g. averaging might be done in app); measured dBm values are
  70  *   always negative ... using a negative value as the default keeps all
  71  *   averages within an s8's (used in some apps) range of negative values. */
  72 #define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
  73
  74 enum iwl4965_antenna {
  75         IWL_ANTENNA_DIVERSITY,
  76         IWL_ANTENNA_MAIN,
  77         IWL_ANTENNA_AUX
  78 };
  79
  80 /*
  81  * RTS threshold here is total size [2347] minus 4 FCS bytes
  82  * Per spec:
  83  *   a value of 0 means RTS on all data/management packets
  84  *   a value > max MSDU size means no RTS
  85  * else RTS for data/management frames where MPDU is larger
  86  *   than RTS value.
  87  */
  88 #define DEFAULT_RTS_THRESHOLD     2347U
  89 #define MIN_RTS_THRESHOLD         0U
  90 #define MAX_RTS_THRESHOLD         2347U
  91 #define MAX_MSDU_SIZE             2304U
  92 #define MAX_MPDU_SIZE             2346U
  93 #define DEFAULT_BEACON_INTERVAL   100U
  94 #define DEFAULT_SHORT_RETRY_LIMIT 7U
  95 #define DEFAULT_LONG_RETRY_LIMIT  4U
  96
  97 struct iwl4965_rx_mem_buffer {
  98         dma_addr_t dma_addr;
  99         struct sk_buff *skb;
 100         struct list_head list;
 101 };
 102
 103 /*
 104  * Generic queue structure
 105  *
 106  * Contains common data for Rx and Tx queues
 107  */
 108 struct iwl4965_queue {
 109         int n_bd;              /* number of BDs in this queue */
 110         int write_ptr;       /* 1-st empty entry (index) host_w*/
 111         int read_ptr;         /* last used entry (index) host_r*/
 112         dma_addr_t dma_addr;   /* physical addr for BD's */
 113         int n_window;          /* safe queue window */
 114         u32 id;
 115         int low_mark;          /* low watermark, resume queue if free
 116                                 * space more than this */
 117         int high_mark;         /* high watermark, stop queue if free
 118                                 * space less than this */
 119 } __attribute__ ((packed));
 120
 121 #define MAX_NUM_OF_TBS          (20)
 122
 123 /* One for each TFD */
 124 struct iwl4965_tx_info {
 125         struct ieee80211_tx_status status;
 126         struct sk_buff *skb[MAX_NUM_OF_TBS];
 127 };
 128
 129 /**
 130  * struct iwl4965_tx_queue - Tx Queue for DMA
 131  * @q: generic Rx/Tx queue descriptor
 132  * @bd: base of circular buffer of TFDs
 133  * @cmd: array of command/Tx buffers
 134  * @dma_addr_cmd: physical address of cmd/tx buffer array
 135  * @txb: array of per-TFD driver data
 136  * @need_update: indicates need to update read/write index
 137  * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
 138  *
 139  * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
 140  * descriptors) and required locking structures.
 141  */
 142 struct iwl4965_tx_queue {
 143         struct iwl4965_queue q;
 144         struct iwl4965_tfd_frame *bd;
 145         struct iwl_cmd *cmd;
 146         dma_addr_t dma_addr_cmd;
 147         struct iwl4965_tx_info *txb;
 148         int need_update;
 149         int sched_retry;
 150         int active;
 151 };
 152
 153 #define IWL_NUM_SCAN_RATES         (2)
 154
 155 struct iwl4965_channel_tgd_info {
 156         u8 type;
 157         s8 max_power;
 158 };
 159
 160 struct iwl4965_channel_tgh_info {
 161         s64 last_radar_time;
 162 };
 163
 164 /* current Tx power values to use, one for each rate for each channel.
 165  * requested power is limited by:
 166  * -- regulatory EEPROM limits for this channel
 167  * -- hardware capabilities (clip-powers)
 168  * -- spectrum management
 169  * -- user preference (e.g. iwconfig)
 170  * when requested power is set, base power index must also be set. */
 171 struct iwl4965_channel_power_info {
 172         struct iwl4965_tx_power tpc;    /* actual radio and DSP gain settings */
 173         s8 power_table_index;   /* actual (compenst'd) index into gain table */
 174         s8 base_power_index;    /* gain index for power at factory temp. */
 175         s8 requested_power;     /* power (dBm) requested for this chnl/rate */
 176 };
 177
 178 /* current scan Tx power values to use, one for each scan rate for each
 179  * channel. */
 180 struct iwl4965_scan_power_info {
 181         struct iwl4965_tx_power tpc;    /* actual radio and DSP gain settings */
 182         s8 power_table_index;   /* actual (compenst'd) index into gain table */
 183         s8 requested_power;     /* scan pwr (dBm) requested for chnl/rate */
 184 };
 185
 186 /* For fat_extension_channel */
 187 enum {
 188         HT_IE_EXT_CHANNEL_NONE = 0,
 189         HT_IE_EXT_CHANNEL_ABOVE,
 190         HT_IE_EXT_CHANNEL_INVALID,
 191         HT_IE_EXT_CHANNEL_BELOW,
 192         HT_IE_EXT_CHANNEL_MAX
 193 };
 194
 195 /*
 196  * One for each channel, holds all channel setup data
 197  * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
 198  *     with one another!
 199  */
 200 #define IWL4965_MAX_RATE (33)
 201
 202 struct iwl_channel_info {
 203         struct iwl4965_channel_tgd_info tgd;
 204         struct iwl4965_channel_tgh_info tgh;
 205         struct iwl_eeprom_channel eeprom;       /* EEPROM regulatory limit */
 206         struct iwl_eeprom_channel fat_eeprom;   /* EEPROM regulatory limit for
 207                                                  * FAT channel */
 208
 209         u8 channel;       /* channel number */
 210         u8 flags;         /* flags copied from EEPROM */
 211         s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
 212         s8 curr_txpow;    /* (dBm) regulatory/spectrum/user (not h/w) limit */
 213         s8 min_power;     /* always 0 */
 214         s8 scan_power;    /* (dBm) regul. eeprom, direct scans, any rate */
 215
 216         u8 group_index;   /* 0-4, maps channel to group1/2/3/4/5 */
 217         u8 band_index;    /* 0-4, maps channel to band1/2/3/4/5 */
 218         enum ieee80211_band band;
 219
 220         /* Radio/DSP gain settings for each "normal" data Tx rate.
 221          * These include, in addition to RF and DSP gain, a few fields for
 222          *   remembering/modifying gain settings (indexes). */
 223         struct iwl4965_channel_power_info power_info[IWL4965_MAX_RATE];
 224
 225         /* FAT channel info */
 226         s8 fat_max_power_avg;   /* (dBm) regul. eeprom, normal Tx, any rate */
 227         s8 fat_curr_txpow;      /* (dBm) regulatory/spectrum/user (not h/w) */
 228         s8 fat_min_power;       /* always 0 */
 229         s8 fat_scan_power;      /* (dBm) eeprom, direct scans, any rate */
 230         u8 fat_flags;           /* flags copied from EEPROM */
 231         u8 fat_extension_channel; /* HT_IE_EXT_CHANNEL_* */
 232
 233         /* Radio/DSP gain settings for each scan rate, for directed scans. */
 234         struct iwl4965_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES];
 235 };
 236
 237 struct iwl4965_clip_group {
 238         /* maximum power level to prevent clipping for each rate, derived by
 239          *   us from this band's saturation power in EEPROM */
 240         const s8 clip_powers[IWL_MAX_RATES];
 241 };
 242
 243 #include "iwl-4965-rs.h"
 244
 245 #define IWL_TX_FIFO_AC0 0
 246 #define IWL_TX_FIFO_AC1 1
 247 #define IWL_TX_FIFO_AC2 2
 248 #define IWL_TX_FIFO_AC3 3
 249 #define IWL_TX_FIFO_HCCA_1      5
 250 #define IWL_TX_FIFO_HCCA_2      6
 251 #define IWL_TX_FIFO_NONE        7
 252
 253 /* Minimum number of queues. MAX_NUM is defined in hw specific files */
 254 #define IWL_MIN_NUM_QUEUES      4
 255
 256 /* Power management (not Tx power) structures */
 257
 258 enum iwl_pwr_src {
 259         IWL_PWR_SRC_VMAIN,
 260         IWL_PWR_SRC_VAUX,
 261 };
 262
 263 #define IEEE80211_DATA_LEN              2304
 264 #define IEEE80211_4ADDR_LEN             30
 265 #define IEEE80211_HLEN                  (IEEE80211_4ADDR_LEN)
 266 #define IEEE80211_FRAME_LEN             (IEEE80211_DATA_LEN + IEEE80211_HLEN)
 267
 268 struct iwl4965_frame {
 269         union {
 270                 struct ieee80211_hdr frame;
 271                 struct iwl4965_tx_beacon_cmd beacon;
 272                 u8 raw[IEEE80211_FRAME_LEN];
 273                 u8 cmd[360];
 274         } u;
 275         struct list_head list;
 276 };
 277
 278 #define SEQ_TO_QUEUE(x)  ((x >> 8) & 0xbf)
 279 #define QUEUE_TO_SEQ(x)  ((x & 0xbf) << 8)
 280 #define SEQ_TO_INDEX(x) ((u8)(x & 0xff))
 281 #define INDEX_TO_SEQ(x) ((u8)(x & 0xff))
 282 #define SEQ_HUGE_FRAME  (0x4000)
 283 #define SEQ_RX_FRAME    __constant_cpu_to_le16(0x8000)
 284 #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
 285 #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
 286 #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
 287
 288 enum {
 289         /* CMD_SIZE_NORMAL = 0, */
 290         CMD_SIZE_HUGE = (1 << 0),
 291         /* CMD_SYNC = 0, */
 292         CMD_ASYNC = (1 << 1),
 293         /* CMD_NO_SKB = 0, */
 294         CMD_WANT_SKB = (1 << 2),
 295 };
 296
 297 struct iwl_cmd;
 298 struct iwl_priv;
 299
 300 struct iwl_cmd_meta {
 301         struct iwl_cmd_meta *source;
 302         union {
 303                 struct sk_buff *skb;
 304                 int (*callback)(struct iwl_priv *priv,
 305                                 struct iwl_cmd *cmd, struct sk_buff *skb);
 306         } __attribute__ ((packed)) u;
 307
 308         /* The CMD_SIZE_HUGE flag bit indicates that the command
 309          * structure is stored at the end of the shared queue memory. */
 310         u32 flags;
 311
 312 } __attribute__ ((packed));
 313
 314 /**
 315  * struct iwl_cmd
 316  *
 317  * For allocation of the command and tx queues, this establishes the overall
 318  * size of the largest command we send to uCode, except for a scan command
 319  * (which is relatively huge; space is allocated separately).
 320  */
 321 struct iwl_cmd {
 322         struct iwl_cmd_meta meta;       /* driver data */
 323         struct iwl_cmd_header hdr;      /* uCode API */
 324         union {
 325                 struct iwl4965_addsta_cmd addsta;
 326                 struct iwl4965_led_cmd led;
 327                 u32 flags;
 328                 u8 val8;
 329                 u16 val16;
 330                 u32 val32;
 331                 struct iwl4965_bt_cmd bt;
 332                 struct iwl4965_rxon_time_cmd rxon_time;
 333                 struct iwl4965_powertable_cmd powertable;
 334                 struct iwl4965_qosparam_cmd qosparam;
 335                 struct iwl4965_tx_cmd tx;
 336                 struct iwl4965_tx_beacon_cmd tx_beacon;
 337                 struct iwl4965_rxon_assoc_cmd rxon_assoc;
 338                 u8 *indirect;
 339                 u8 payload[360];
 340         } __attribute__ ((packed)) cmd;
 341 } __attribute__ ((packed));
 342
 343 struct iwl_host_cmd {
 344         u8 id;
 345         u16 len;
 346         struct iwl_cmd_meta meta;
 347         const void *data;
 348 };
 349
 350 #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_cmd) - \
 351                               sizeof(struct iwl_cmd_meta))
 352
 353 /*
 354  * RX related structures and functions
 355  */
 356 #define RX_FREE_BUFFERS 64
 357 #define RX_LOW_WATERMARK 8
 358
 359 #define SUP_RATE_11A_MAX_NUM_CHANNELS  8
 360 #define SUP_RATE_11B_MAX_NUM_CHANNELS  4
 361 #define SUP_RATE_11G_MAX_NUM_CHANNELS  12
 362
 363 /**
 364  * struct iwl4965_rx_queue - Rx queue
 365  * @processed: Internal index to last handled Rx packet
 366  * @read: Shared index to newest available Rx buffer
 367  * @write: Shared index to oldest written Rx packet
 368  * @free_count: Number of pre-allocated buffers in rx_free
 369  * @rx_free: list of free SKBs for use
 370  * @rx_used: List of Rx buffers with no SKB
 371  * @need_update: flag to indicate we need to update read/write index
 372  *
 373  * NOTE:  rx_free and rx_used are used as a FIFO for iwl4965_rx_mem_buffers
 374  */
 375 struct iwl4965_rx_queue {
 376         __le32 *bd;
 377         dma_addr_t dma_addr;
 378         struct iwl4965_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
 379         struct iwl4965_rx_mem_buffer *queue[RX_QUEUE_SIZE];
 380         u32 processed;
 381         u32 read;
 382         u32 write;
 383         u32 free_count;
 384         struct list_head rx_free;
 385         struct list_head rx_used;
 386         int need_update;
 387         spinlock_t lock;
 388 };
 389
 390 #define IWL_SUPPORTED_RATES_IE_LEN         8
 391
 392 #define SCAN_INTERVAL 100
 393
 394 #define MAX_A_CHANNELS  252
 395 #define MIN_A_CHANNELS  7
 396
 397 #define MAX_B_CHANNELS  14
 398 #define MIN_B_CHANNELS  1
 399
 400 #define MAX_TID_COUNT        9
 401
 402 #define IWL_INVALID_RATE     0xFF
 403 #define IWL_INVALID_VALUE    -1
 404
 405 #ifdef CONFIG_IWL4965_HT
 406 /**
 407  * struct iwl4965_ht_agg -- aggregation status while waiting for block-ack
 408  * @txq_id: Tx queue used for Tx attempt
 409  * @frame_count: # frames attempted by Tx command
 410  * @wait_for_ba: Expect block-ack before next Tx reply
 411  * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
 412  * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
 413  * @bitmap1: High order, one bit for each frame pending ACK in Tx window
 414  * @rate_n_flags: Rate at which Tx was attempted
 415  *
 416  * If REPLY_TX indicates that aggregation was attempted, driver must wait
 417  * for block ack (REPLY_COMPRESSED_BA).  This struct stores tx reply info
 418  * until block ack arrives.
 419  */
 420 struct iwl4965_ht_agg {
 421         u16 txq_id;
 422         u16 frame_count;
 423         u16 wait_for_ba;
 424         u16 start_idx;
 425         u64 bitmap;
 426         u32 rate_n_flags;
 427 #define IWL_AGG_OFF 0
 428 #define IWL_AGG_ON 1
 429 #define IWL_EMPTYING_HW_QUEUE_ADDBA 2
 430 #define IWL_EMPTYING_HW_QUEUE_DELBA 3
 431         u8 state;
 432 };
 433
 434 #endif /* CONFIG_IWL4965_HT */
 435
 436 struct iwl4965_tid_data {
 437         u16 seq_number;
 438         u16 tfds_in_queue;
 439 #ifdef CONFIG_IWL4965_HT
 440         struct iwl4965_ht_agg agg;
 441 #endif /* CONFIG_IWL4965_HT */
 442 };
 443
 444 struct iwl4965_hw_key {
 445         enum ieee80211_key_alg alg;
 446         int keylen;
 447         u8 keyidx;
 448         struct ieee80211_key_conf *conf;
 449         u8 key[32];
 450 };
 451
 452 union iwl4965_ht_rate_supp {
 453         u16 rates;
 454         struct {
 455                 u8 siso_rate;
 456                 u8 mimo_rate;
 457         };
 458 };
 459
 460 #ifdef CONFIG_IWL4965_HT
 461 #define CFG_HT_RX_AMPDU_FACTOR_DEF  (0x3)
 462 #define CFG_HT_MPDU_DENSITY_2USEC   (0x5)
 463 #define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_2USEC
 464
 465 struct iwl_ht_info {
 466         /* self configuration data */
 467         u8 is_ht;
 468         u8 supported_chan_width;
 469         u16 tx_mimo_ps_mode;
 470         u8 is_green_field;
 471         u8 sgf;                 /* HT_SHORT_GI_* short guard interval */
 472         u8 max_amsdu_size;
 473         u8 ampdu_factor;
 474         u8 mpdu_density;
 475         u8 supp_mcs_set[16];
 476         /* BSS related data */
 477         u8 control_channel;
 478         u8 extension_chan_offset;
 479         u8 tx_chan_width;
 480         u8 ht_protection;
 481         u8 non_GF_STA_present;
 482 };
 483 #endif                          /*CONFIG_IWL4965_HT */
 484
 485 union iwl4965_qos_capabity {
 486         struct {
 487                 u8 edca_count:4;        /* bit 0-3 */
 488                 u8 q_ack:1;             /* bit 4 */
 489                 u8 queue_request:1;     /* bit 5 */
 490                 u8 txop_request:1;      /* bit 6 */
 491                 u8 reserved:1;          /* bit 7 */
 492         } q_AP;
 493         struct {
 494                 u8 acvo_APSD:1;         /* bit 0 */
 495                 u8 acvi_APSD:1;         /* bit 1 */
 496                 u8 ac_bk_APSD:1;        /* bit 2 */
 497                 u8 ac_be_APSD:1;        /* bit 3 */
 498                 u8 q_ack:1;             /* bit 4 */
 499                 u8 max_len:2;           /* bit 5-6 */
 500                 u8 more_data_ack:1;     /* bit 7 */
 501         } q_STA;
 502         u8 val;
 503 };
 504
 505 /* QoS structures */
 506 struct iwl4965_qos_info {
 507         int qos_enable;
 508         int qos_active;
 509         union iwl4965_qos_capabity qos_cap;
 510         struct iwl4965_qosparam_cmd def_qos_parm;
 511 };
 512
 513 #define STA_PS_STATUS_WAKE             0
 514 #define STA_PS_STATUS_SLEEP            1
 515
 516 struct iwl4965_station_entry {
 517         struct iwl4965_addsta_cmd sta;
 518         struct iwl4965_tid_data tid[MAX_TID_COUNT];
 519         u8 used;
 520         u8 ps_status;
 521         struct iwl4965_hw_key keyinfo;
 522 };
 523
 524 /* one for each uCode image (inst/data, boot/init/runtime) */
 525 struct fw_desc {
 526         void *v_addr;           /* access by driver */
 527         dma_addr_t p_addr;      /* access by card's busmaster DMA */
 528         u32 len;                /* bytes */
 529 };
 530
 531 /* uCode file layout */
 532 struct iwl4965_ucode {
 533         __le32 ver;             /* major/minor/subminor */
 534         __le32 inst_size;       /* bytes of runtime instructions */
 535         __le32 data_size;       /* bytes of runtime data */
 536         __le32 init_size;       /* bytes of initialization instructions */
 537         __le32 init_data_size;  /* bytes of initialization data */
 538         __le32 boot_size;       /* bytes of bootstrap instructions */
 539         u8 data[0];             /* data in same order as "size" elements */
 540 };
 541
 542 #define IWL_IBSS_MAC_HASH_SIZE 32
 543
 544 struct iwl4965_ibss_seq {
 545         u8 mac[ETH_ALEN];
 546         u16 seq_num;
 547         u16 frag_num;
 548         unsigned long packet_time;
 549         struct list_head list;
 550 };
 551
 552 struct iwl_sensitivity_ranges {
 553         u16 min_nrg_cck;
 554         u16 max_nrg_cck;
 555
 556         u16 nrg_th_cck;
 557         u16 nrg_th_ofdm;
 558
 559         u16 auto_corr_min_ofdm;
 560         u16 auto_corr_min_ofdm_mrc;
 561         u16 auto_corr_min_ofdm_x1;
 562         u16 auto_corr_min_ofdm_mrc_x1;
 563
 564         u16 auto_corr_max_ofdm;
 565         u16 auto_corr_max_ofdm_mrc;
 566         u16 auto_corr_max_ofdm_x1;
 567         u16 auto_corr_max_ofdm_mrc_x1;
 568
 569         u16 auto_corr_max_cck;
 570         u16 auto_corr_max_cck_mrc;
 571         u16 auto_corr_min_cck;
 572         u16 auto_corr_min_cck_mrc;
 573 };
 574
 575
 576 #define IWL_FAT_CHANNEL_52 BIT(IEEE80211_BAND_5GHZ)
 577
 578 /**
 579  * struct iwl_hw_params
 580  * @max_txq_num: Max # Tx queues supported
 581  * @tx_cmd_len: Size of Tx command (but not including frame itself)
 582  * @tx/rx_chains_num: Number of TX/RX chains
 583  * @valid_tx/rx_ant: usable antennas
 584  * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
 585  * @max_rxq_log: Log-base-2 of max_rxq_size
 586  * @rx_buf_size: Rx buffer size
 587  * @max_stations:
 588  * @bcast_sta_id:
 589  * @fat_channel: is 40MHz width possible in band 2.4
 590  * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ)
 591  * @sw_crypto: 0 for hw, 1 for sw
 592  * @max_xxx_size: for ucode uses
 593  * @ct_kill_threshold: temperature threshold
 594  * @struct iwl_sensitivity_ranges: range of sensitivity values
 595  */
 596 struct iwl_hw_params {
 597         u16 max_txq_num;
 598         u16 tx_cmd_len;
 599         u8  tx_chains_num;
 600         u8  rx_chains_num;
 601         u8  valid_tx_ant;
 602         u8  valid_rx_ant;
 603         u16 max_rxq_size;
 604         u16 max_rxq_log;
 605         u32 rx_buf_size;
 606         u32 max_pkt_size;
 607         u8  max_stations;
 608         u8  bcast_sta_id;
 609         u8 fat_channel;
 610         u8 sw_crypto;
 611         u32 max_inst_size;
 612         u32 max_data_size;
 613         u32 max_bsm_size;
 614         u32 ct_kill_threshold; /* value in hw-dependent units */
 615 #ifdef CONFIG_IWLWIFI_RUN_TIME_CALIB
 616         const struct iwl_sensitivity_ranges *sens;
 617 #endif
 618 };
 619
 620 #define HT_SHORT_GI_20MHZ_ONLY  (1 << 0)
 621 #define HT_SHORT_GI_40MHZ_ONLY  (1 << 1)
 622
 623
 624 #define IWL_RX_HDR(x) ((struct iwl4965_rx_frame_hdr *)(\
 625                        x->u.rx_frame.stats.payload + \
 626                        x->u.rx_frame.stats.phy_count))
 627 #define IWL_RX_END(x) ((struct iwl4965_rx_frame_end *)(\
 628                        IWL_RX_HDR(x)->payload + \
 629                        le16_to_cpu(IWL_RX_HDR(x)->len)))
 630 #define IWL_RX_STATS(x) (&x->u.rx_frame.stats)
 631 #define IWL_RX_DATA(x) (IWL_RX_HDR(x)->payload)
 632
 633
 634 /******************************************************************************
 635  *
 636  * Functions implemented in iwl-base.c which are forward declared here
 637  * for use by iwl-*.c
 638  *
 639  *****************************************************************************/
 640 struct iwl4965_addsta_cmd;
 641 extern int iwl4965_send_add_station(struct iwl_priv *priv,
 642                                 struct iwl4965_addsta_cmd *sta, u8 flags);
 643 extern u8 iwl4965_add_station_flags(struct iwl_priv *priv, const u8 *addr,
 644                           int is_ap, u8 flags, void *ht_data);
 645 extern int iwl4965_is_network_packet(struct iwl_priv *priv,
 646                                  struct ieee80211_hdr *header);
 647 extern int iwl4965_power_init_handle(struct iwl_priv *priv);
 648 extern void iwl4965_handle_data_packet_monitor(struct iwl_priv *priv,
 649                                            struct iwl4965_rx_mem_buffer *rxb,
 650                                            void *data, short len,
 651                                            struct ieee80211_rx_status *stats,
 652                                            u16 phy_flags);
 653 extern int iwl4965_is_duplicate_packet(struct iwl_priv *priv,
 654                                        struct ieee80211_hdr *header);
 655 extern int iwl4965_rx_queue_alloc(struct iwl_priv *priv);
 656 extern void iwl4965_rx_queue_reset(struct iwl_priv *priv,
 657                                struct iwl4965_rx_queue *rxq);
 658 extern int iwl4965_calc_db_from_ratio(int sig_ratio);
 659 extern int iwl4965_calc_sig_qual(int rssi_dbm, int noise_dbm);
 660 extern int iwl4965_tx_queue_init(struct iwl_priv *priv,
 661                              struct iwl4965_tx_queue *txq, int count, u32 id);
 662 extern void iwl4965_rx_replenish(void *data);
 663 extern void iwl4965_tx_queue_free(struct iwl_priv *priv, struct iwl4965_tx_queue *txq);
 664 extern unsigned int iwl4965_fill_beacon_frame(struct iwl_priv *priv,
 665                                         struct ieee80211_hdr *hdr,
 666                                         const u8 *dest, int left);
 667 extern int iwl4965_rx_queue_update_write_ptr(struct iwl_priv *priv,
 668                                          struct iwl4965_rx_queue *q);
 669 extern __le16 *ieee80211_get_qos_ctrl(struct ieee80211_hdr *hdr);
 670 extern void iwl4965_update_chain_flags(struct iwl_priv *priv);
 671 int iwl4965_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src);
 672
 673 int iwl4965_init_geos(struct iwl_priv *priv);
 674 void iwl4965_free_geos(struct iwl_priv *priv);
 675
 676 extern const u8 iwl4965_broadcast_addr[ETH_ALEN];
 677 int iwl4965_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
 678
 679 /*
 680  * Currently used by iwl-3945-rs... look at restructuring so that it doesn't
 681  * call this... todo... fix that.
 682 */
 683 extern u8 iwl4965_sync_station(struct iwl_priv *priv, int sta_id,
 684                            u16 tx_rate, u8 flags);
 685
 686 /******************************************************************************
 687  *
 688  * Functions implemented in iwl-[34]*.c which are forward declared here
 689  * for use by iwl-base.c
 690  *
 691  * NOTE:  The implementation of these functions are hardware specific
 692  * which is why they are in the hardware specific files (vs. iwl-base.c)
 693  *
 694  * Naming convention --
 695  * iwl4965_         <-- Its part of iwlwifi (should be changed to iwl4965_)
 696  * iwl4965_hw_      <-- Hardware specific (implemented in iwl-XXXX.c by all HW)
 697  * iwlXXXX_     <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
 698  * iwl4965_bg_      <-- Called from work queue context
 699  * iwl4965_mac_     <-- mac80211 callback
 700  *
 701  ****************************************************************************/
 702 extern void iwl4965_hw_rx_handler_setup(struct iwl_priv *priv);
 703 extern void iwl4965_hw_setup_deferred_work(struct iwl_priv *priv);
 704 extern void iwl4965_hw_cancel_deferred_work(struct iwl_priv *priv);
 705 extern int iwl4965_hw_rxq_stop(struct iwl_priv *priv);
 706 extern int iwl4965_hw_set_hw_params(struct iwl_priv *priv);
 707 extern int iwl4965_hw_nic_init(struct iwl_priv *priv);
 708 extern int iwl4965_hw_nic_stop_master(struct iwl_priv *priv);
 709 extern void iwl4965_hw_txq_ctx_free(struct iwl_priv *priv);
 710 extern void iwl4965_hw_txq_ctx_stop(struct iwl_priv *priv);
 711 extern int iwl4965_hw_nic_reset(struct iwl_priv *priv);
 712 extern int iwl4965_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv, void *tfd,
 713                                         dma_addr_t addr, u16 len);
 714 extern int iwl4965_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl4965_tx_queue *txq);
 715 extern int iwl4965_hw_get_temperature(struct iwl_priv *priv);
 716 extern int iwl4965_hw_tx_queue_init(struct iwl_priv *priv,
 717                                 struct iwl4965_tx_queue *txq);
 718 extern unsigned int iwl4965_hw_get_beacon_cmd(struct iwl_priv *priv,
 719                                  struct iwl4965_frame *frame, u8 rate);
 720 extern int iwl4965_hw_get_rx_read(struct iwl_priv *priv);
 721 extern void iwl4965_hw_build_tx_cmd_rate(struct iwl_priv *priv,
 722                                      struct iwl_cmd *cmd,
 723                                      struct ieee80211_tx_control *ctrl,
 724                                      struct ieee80211_hdr *hdr,
 725                                      int sta_id, int tx_id);
 726 extern int iwl4965_hw_reg_send_txpower(struct iwl_priv *priv);
 727 extern int iwl4965_hw_reg_set_txpower(struct iwl_priv *priv, s8 power);
 728 extern void iwl4965_hw_rx_statistics(struct iwl_priv *priv,
 729                                  struct iwl4965_rx_mem_buffer *rxb);
 730 extern void iwl4965_disable_events(struct iwl_priv *priv);
 731 extern int iwl4965_get_temperature(const struct iwl_priv *priv);
 732
 733 /**
 734  * iwl_find_station - Find station id for a given BSSID
 735  * @bssid: MAC address of station ID to find
 736  *
 737  * NOTE:  This should not be hardware specific but the code has
 738  * not yet been merged into a single common layer for managing the
 739  * station tables.
 740  */
 741 extern u8 iwl_find_station(struct iwl_priv *priv, const u8 *bssid);
 742
 743 extern int iwl4965_hw_channel_switch(struct iwl_priv *priv, u16 channel);
 744 extern int iwl4965_tx_queue_reclaim(struct iwl_priv *priv, int txq_id, int index);
 745 extern int iwl4965_queue_space(const struct iwl4965_queue *q);
 746 struct iwl_priv;
 747
 748 extern void iwl4965_radio_kill_sw(struct iwl_priv *priv, int disable_radio);
 749 /*
 750  * Forward declare iwl-4965.c functions for iwl-base.c
 751  */
 752 extern int iwl4965_tx_queue_update_wr_ptr(struct iwl_priv *priv,
 753                                           struct iwl4965_tx_queue *txq,
 754                                           u16 byte_cnt);
 755 extern void iwl4965_add_station(struct iwl_priv *priv, const u8 *addr,
 756                                 int is_ap);
 757 extern void iwl4965_set_rxon_chain(struct iwl_priv *priv);
 758 extern int iwl4965_alive_notify(struct iwl_priv *priv);
 759 extern void iwl4965_update_rate_scaling(struct iwl_priv *priv, u8 mode);
 760 extern void iwl4965_rf_kill_ct_config(struct iwl_priv *priv);
 761 extern void iwl4965_hwrate_to_tx_control(struct iwl_priv *priv,
 762                                          u32 rate_n_flags,
 763                                          struct ieee80211_tx_control *control);
 764
 765 #ifdef CONFIG_IWL4965_HT
 766 void iwl4965_init_ht_hw_capab(struct iwl_priv *priv,
 767                               struct ieee80211_ht_info *ht_info,
 768                               enum ieee80211_band band);
 769 void iwl4965_set_rxon_ht(struct iwl_priv *priv,
 770                          struct iwl_ht_info *ht_info);
 771 void iwl4965_set_ht_add_station(struct iwl_priv *priv, u8 index,
 772                                 struct ieee80211_ht_info *sta_ht_inf);
 773 int iwl4965_mac_ampdu_action(struct ieee80211_hw *hw,
 774                                     enum ieee80211_ampdu_mlme_action action,
 775                                     const u8 *addr, u16 tid, u16 *ssn);
 776 int iwl4965_check_empty_hw_queue(struct iwl_priv *priv, int sta_id,
 777                                         u8 tid, int txq_id);
 778 #else
 779 static inline void iwl4965_init_ht_hw_capab(struct iwl_priv *priv,
 780                                             struct ieee80211_ht_info *ht_info,
 781                                             enum ieee80211_band band) {}
 782
 783 #endif /*CONFIG_IWL4965_HT */
 784 /* Structures, enum, and defines specific to the 4965 */
 785
 786 #define IWL4965_KW_SIZE 0x1000  /*4k */
 787
 788 struct iwl4965_kw {
 789         dma_addr_t dma_addr;
 790         void *v_addr;
 791         size_t size;
 792 };
 793
 794 #define IWL_CHANNEL_WIDTH_20MHZ   0
 795 #define IWL_CHANNEL_WIDTH_40MHZ   1
 796
 797 #define IWL_MIMO_PS_STATIC        0
 798 #define IWL_MIMO_PS_NONE          3
 799 #define IWL_MIMO_PS_DYNAMIC       1
 800 #define IWL_MIMO_PS_INVALID       2
 801
 802 #define IWL_OPERATION_MODE_AUTO     0
 803 #define IWL_OPERATION_MODE_HT_ONLY  1
 804 #define IWL_OPERATION_MODE_MIXED    2
 805 #define IWL_OPERATION_MODE_20MHZ    3
 806
 807 #define IWL_EXT_CHANNEL_OFFSET_NONE      0
 808 #define IWL_EXT_CHANNEL_OFFSET_ABOVE     1
 809 #define IWL_EXT_CHANNEL_OFFSET_RESERVE1  2
 810 #define IWL_EXT_CHANNEL_OFFSET_BELOW     3
 811
 812 #define NRG_NUM_PREV_STAT_L     20
 813 #define NUM_RX_CHAINS           (3)
 814
 815 #define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
 816
 817 struct iwl4965_lq_mngr {
 818         spinlock_t lock;
 819         s32 max_window_size;
 820         s32 *expected_tpt;
 821         u8 *next_higher_rate;
 822         u8 *next_lower_rate;
 823         unsigned long stamp;
 824         unsigned long stamp_last;
 825         u32 flush_time;
 826         u32 tx_packets;
 827         u8 lq_ready;
 828 };
 829
 830 /* Sensitivity and chain noise calibration */
 831 #define INTERFERENCE_DATA_AVAILABLE     __constant_cpu_to_le32(1)
 832 #define INITIALIZATION_VALUE            0xFFFF
 833 #define CAL_NUM_OF_BEACONS              20
 834 #define MAXIMUM_ALLOWED_PATHLOSS        15
 835
 836 #define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
 837
 838 #define MAX_FA_OFDM  50
 839 #define MIN_FA_OFDM  5
 840 #define MAX_FA_CCK   50
 841 #define MIN_FA_CCK   5
 842
 843 #define AUTO_CORR_STEP_OFDM       1
 844
 845 #define AUTO_CORR_STEP_CCK     3
 846 #define AUTO_CORR_MAX_TH_CCK   160
 847
 848 #define NRG_DIFF               2
 849 #define NRG_STEP_CCK           2
 850 #define NRG_MARGIN             8
 851 #define MAX_NUMBER_CCK_NO_FA 100
 852
 853 #define AUTO_CORR_CCK_MIN_VAL_DEF    (125)
 854
 855 #define CHAIN_A             0
 856 #define CHAIN_B             1
 857 #define CHAIN_C             2
 858 #define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
 859 #define ALL_BAND_FILTER                 0xFF00
 860 #define IN_BAND_FILTER                  0xFF
 861 #define MIN_AVERAGE_NOISE_MAX_VALUE     0xFFFFFFFF
 862
 863 enum iwl4965_false_alarm_state {
 864         IWL_FA_TOO_MANY = 0,
 865         IWL_FA_TOO_FEW = 1,
 866         IWL_FA_GOOD_RANGE = 2,
 867 };
 868
 869 enum iwl4965_chain_noise_state {
 870         IWL_CHAIN_NOISE_ALIVE = 0,  /* must be 0 */
 871         IWL_CHAIN_NOISE_ACCUMULATE = 1,
 872         IWL_CHAIN_NOISE_CALIBRATED = 2,
 873 };
 874
 875 enum iwl4965_calib_enabled_state {
 876         IWL_CALIB_DISABLED = 0,  /* must be 0 */
 877         IWL_CALIB_ENABLED = 1,
 878 };
 879
 880 struct statistics_general_data {
 881         u32 beacon_silence_rssi_a;
 882         u32 beacon_silence_rssi_b;
 883         u32 beacon_silence_rssi_c;
 884         u32 beacon_energy_a;
 885         u32 beacon_energy_b;
 886         u32 beacon_energy_c;
 887 };
 888
 889 #ifdef CONFIG_IWLWIFI_RUN_TIME_CALIB
 890 /* Sensitivity calib data */
 891 struct iwl_sensitivity_data {
 892         u32 auto_corr_ofdm;
 893         u32 auto_corr_ofdm_mrc;
 894         u32 auto_corr_ofdm_x1;
 895         u32 auto_corr_ofdm_mrc_x1;
 896         u32 auto_corr_cck;
 897         u32 auto_corr_cck_mrc;
 898
 899         u32 last_bad_plcp_cnt_ofdm;
 900         u32 last_fa_cnt_ofdm;
 901         u32 last_bad_plcp_cnt_cck;
 902         u32 last_fa_cnt_cck;
 903
 904         u32 nrg_curr_state;
 905         u32 nrg_prev_state;
 906         u32 nrg_value[10];
 907         u8  nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
 908         u32 nrg_silence_ref;
 909         u32 nrg_energy_idx;
 910         u32 nrg_silence_idx;
 911         u32 nrg_th_cck;
 912         s32 nrg_auto_corr_silence_diff;
 913         u32 num_in_cck_no_fa;
 914         u32 nrg_th_ofdm;
 915 };
 916
 917 /* Chain noise (differential Rx gain) calib data */
 918 struct iwl_chain_noise_data {
 919         u8 state;
 920         u16 beacon_count;
 921         u32 chain_noise_a;
 922         u32 chain_noise_b;
 923         u32 chain_noise_c;
 924         u32 chain_signal_a;
 925         u32 chain_signal_b;
 926         u32 chain_signal_c;
 927         u8 disconn_array[NUM_RX_CHAINS];
 928         u8 delta_gain_code[NUM_RX_CHAINS];
 929         u8 radio_write;
 930 };
 931 #endif /* CONFIG_IWLWIFI_RUN_TIME_CALIB */
 932
 933 #define EEPROM_SEM_TIMEOUT 10           /* milliseconds */
 934 #define EEPROM_SEM_RETRY_LIMIT 1000     /* number of attempts (not time) */
 935
 936
 937 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
 938
 939 enum {
 940         MEASUREMENT_READY = (1 << 0),
 941         MEASUREMENT_ACTIVE = (1 << 1),
 942 };
 943
 944 #endif
 945
 946 #define IWL_MAX_NUM_QUEUES      20 /* FIXME: do dynamic allocation */
 947
 948 struct iwl_priv {
 949
 950         /* ieee device used by generic ieee processing code */
 951         struct ieee80211_hw *hw;
 952         struct ieee80211_channel *ieee_channels;
 953         struct ieee80211_rate *ieee_rates;
 954         struct iwl_cfg *cfg;
 955
 956         /* temporary frame storage list */
 957         struct list_head free_frames;
 958         int frames_count;
 959
 960         enum ieee80211_band band;
 961         int alloc_rxb_skb;
 962         bool add_radiotap;
 963
 964         void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
 965                                        struct iwl4965_rx_mem_buffer *rxb);
 966
 967         struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
 968
 969 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
 970         /* spectrum measurement report caching */
 971         struct iwl4965_spectrum_notification measure_report;
 972         u8 measurement_status;
 973 #endif
 974         /* ucode beacon time */
 975         u32 ucode_beacon_time;
 976
 977         /* we allocate array of iwl4965_channel_info for NIC's valid channels.
 978          *    Access via channel # using indirect index array */
 979         struct iwl_channel_info *channel_info;  /* channel info array */
 980         u8 channel_count;       /* # of channels */
 981
 982         /* each calibration channel group in the EEPROM has a derived
 983          * clip setting for each rate. */
 984         const struct iwl4965_clip_group clip_groups[5];
 985
 986         /* thermal calibration */
 987         s32 temperature;        /* degrees Kelvin */
 988         s32 last_temperature;
 989
 990         /* Scan related variables */
 991         unsigned long last_scan_jiffies;
 992         unsigned long next_scan_jiffies;
 993         unsigned long scan_start;
 994         unsigned long scan_pass_start;
 995         unsigned long scan_start_tsf;
 996         int scan_bands;
 997         int one_direct_scan;
 998         u8 direct_ssid_len;
 999         u8 direct_ssid[IW_ESSID_MAX_SIZE];
1000         struct iwl4965_scan_cmd *scan;
1001
1002         /* spinlock */
1003         spinlock_t lock;        /* protect general shared data */
1004         spinlock_t hcmd_lock;   /* protect hcmd */
1005         struct mutex mutex;
1006
1007         /* basic pci-network driver stuff */
1008         struct pci_dev *pci_dev;
1009
1010         /* pci hardware address support */
1011         void __iomem *hw_base;
1012
1013         /* uCode images, save to reload in case of failure */
1014         struct fw_desc ucode_code;      /* runtime inst */
1015         struct fw_desc ucode_data;      /* runtime data original */
1016         struct fw_desc ucode_data_backup;       /* runtime data save/restore */
1017         struct fw_desc ucode_init;      /* initialization inst */
1018         struct fw_desc ucode_init_data; /* initialization data */
1019         struct fw_desc ucode_boot;      /* bootstrap inst */
1020
1021
1022         struct iwl4965_rxon_time_cmd rxon_timing;
1023
1024         /* We declare this const so it can only be
1025          * changed via explicit cast within the
1026          * routines that actually update the physical
1027          * hardware */
1028         const struct iwl4965_rxon_cmd active_rxon;
1029         struct iwl4965_rxon_cmd staging_rxon;
1030
1031         int error_recovering;
1032         struct iwl4965_rxon_cmd recovery_rxon;
1033
1034         /* 1st responses from initialize and runtime uCode images.
1035          * 4965's initialize alive response contains some calibration data. */
1036         struct iwl4965_init_alive_resp card_alive_init;
1037         struct iwl4965_alive_resp card_alive;
1038 #ifdef CONFIG_IWLWIFI_RFKILL
1039         struct iwl_rfkill_mngr rfkill_mngr;
1040 #endif
1041
1042 #ifdef CONFIG_IWLWIFI_LEDS
1043         struct iwl4965_led led[IWL_LED_TRG_MAX];
1044         unsigned long last_blink_time;
1045         u8 last_blink_rate;
1046         u8 allow_blinking;
1047         u64 led_tpt;
1048 #endif
1049
1050         u16 active_rate;
1051         u16 active_rate_basic;
1052
1053         u8 assoc_station_added;
1054         u8 use_ant_b_for_management_frame;      /* Tx antenna selection */
1055         u8 valid_antenna;       /* Bit mask of antennas actually connected */
1056         u8 start_calib;
1057 #ifdef CONFIG_IWLWIFI_RUN_TIME_CALIB
1058         struct iwl_sensitivity_data sensitivity_data;
1059         struct iwl_chain_noise_data chain_noise_data;
1060         __le16 sensitivity_tbl[HD_TABLE_SIZE];
1061 #endif /*CONFIG_IWLWIFI_RUN_TIME_CALIB*/
1062
1063 #ifdef CONFIG_IWL4965_HT
1064         struct iwl_ht_info current_ht_config;
1065 #endif
1066         u8 last_phy_res[100];
1067
1068         /* Rate scaling data */
1069         struct iwl4965_lq_mngr lq_mngr;
1070
1071         /* Rate scaling data */
1072         s8 data_retry_limit;
1073         u8 retry_rate;
1074
1075         wait_queue_head_t wait_command_queue;
1076
1077         int activity_timer_active;
1078
1079         /* Rx and Tx DMA processing queues */
1080         struct iwl4965_rx_queue rxq;
1081         struct iwl4965_tx_queue txq[IWL_MAX_NUM_QUEUES];
1082         unsigned long txq_ctx_active_msk;
1083         struct iwl4965_kw kw;   /* keep warm address */
1084         u32 scd_base_addr;      /* scheduler sram base address */
1085
1086         unsigned long status;
1087
1088         int last_rx_rssi;       /* From Rx packet statisitics */
1089         int last_rx_noise;      /* From beacon statistics */
1090
1091         /* counts mgmt, ctl, and data packets */
1092         struct traffic_stats {
1093                 u32 cnt;
1094                 u64 bytes;
1095         } tx_stats[3], rx_stats[3];
1096
1097         struct iwl_power_mgr power_data;
1098
1099         struct iwl4965_notif_statistics statistics;
1100         unsigned long last_statistics_time;
1101
1102         /* context information */
1103         u8 essid[IW_ESSID_MAX_SIZE];
1104         u8 essid_len;
1105         u16 rates_mask;
1106
1107         u32 power_mode;
1108         u32 antenna;
1109         u8 bssid[ETH_ALEN];
1110         u16 rts_threshold;
1111         u8 mac_addr[ETH_ALEN];
1112
1113         /*station table variables */
1114         spinlock_t sta_lock;
1115         int num_stations;
1116         struct iwl4965_station_entry stations[IWL_STATION_COUNT];
1117         struct iwl_wep_key wep_keys[WEP_KEYS_MAX];
1118         u8 default_wep_key;
1119         u8 key_mapping_key;
1120         unsigned long ucode_key_table;
1121
1122         /* Indication if ieee80211_ops->open has been called */
1123         u8 is_open;
1124
1125         u8 mac80211_registered;
1126
1127         u32 notif_missed_beacons;
1128
1129         /* Rx'd packet timing information */
1130         u32 last_beacon_time;
1131         u64 last_tsf;
1132
1133         /* Duplicate packet detection */
1134         u16 last_seq_num;
1135         u16 last_frag_num;
1136         unsigned long last_packet_time;
1137
1138         /* Hash table for finding stations in IBSS network */
1139         struct list_head ibss_mac_hash[IWL_IBSS_MAC_HASH_SIZE];
1140
1141         /* eeprom */
1142         u8 *eeprom;
1143         struct iwl_eeprom_calib_info *calib_info;
1144
1145         enum ieee80211_if_types iw_mode;
1146
1147         struct sk_buff *ibss_beacon;
1148
1149         /* Last Rx'd beacon timestamp */
1150         u64 timestamp;
1151         u16 beacon_int;
1152         struct ieee80211_vif *vif;
1153
1154         struct iwl_hw_params hw_params;
1155         /* driver/uCode shared Tx Byte Counts and Rx status */
1156         void *shared_virt;
1157         /* Physical Pointer to Tx Byte Counts and Rx status */
1158         dma_addr_t shared_phys;
1159
1160         /* Current association information needed to configure the
1161          * hardware */
1162         u16 assoc_id;
1163         u16 assoc_capability;
1164         u8 ps_mode;
1165
1166         struct iwl4965_qos_info qos_data;
1167
1168         struct workqueue_struct *workqueue;
1169
1170         struct work_struct up;
1171         struct work_struct restart;
1172         struct work_struct calibrated_work;
1173         struct work_struct scan_completed;
1174         struct work_struct rx_replenish;
1175         struct work_struct rf_kill;
1176         struct work_struct abort_scan;
1177         struct work_struct update_link_led;
1178         struct work_struct auth_work;
1179         struct work_struct report_work;
1180         struct work_struct request_scan;
1181         struct work_struct beacon_update;
1182
1183         struct tasklet_struct irq_tasklet;
1184
1185         struct delayed_work init_alive_start;
1186         struct delayed_work alive_start;
1187         struct delayed_work activity_timer;
1188         struct delayed_work thermal_periodic;
1189         struct delayed_work gather_stats;
1190         struct delayed_work scan_check;
1191         struct delayed_work post_associate;
1192
1193 #define IWL_DEFAULT_TX_POWER 0x0F
1194         s8 user_txpower_limit;
1195         s8 max_channel_txpower_limit;
1196
1197 #ifdef CONFIG_PM
1198         u32 pm_state[16];
1199 #endif
1200
1201 #ifdef CONFIG_IWLWIFI_DEBUG
1202         /* debugging info */
1203         u32 framecnt_to_us;
1204         atomic_t restrict_refcnt;
1205 #ifdef CONFIG_IWLWIFI_DEBUGFS
1206         /* debugfs */
1207         struct iwl_debugfs *dbgfs;
1208 #endif /* CONFIG_IWLWIFI_DEBUGFS */
1209 #endif /* CONFIG_IWLWIFI_DEBUG */
1210
1211         struct work_struct txpower_work;
1212 #ifdef CONFIG_IWL4965_RUN_TIME_CALIB
1213         struct work_struct sensitivity_work;
1214 #endif
1215         struct timer_list statistics_periodic;
1216 }; /*iwl_priv */
1217
1218 static inline int iwl_is_associated(struct iwl_priv *priv)
1219 {
1220         return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
1221 }
1222
1223 static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
1224 {
1225         if (ch_info == NULL)
1226                 return 0;
1227         return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
1228 }
1229
1230 static inline int is_channel_narrow(const struct iwl_channel_info *ch_info)
1231 {
1232         return (ch_info->flags & EEPROM_CHANNEL_NARROW) ? 1 : 0;
1233 }
1234
1235 static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
1236 {
1237         return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
1238 }
1239
1240 static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
1241 {
1242         return ch_info->band == IEEE80211_BAND_5GHZ;
1243 }
1244
1245 static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
1246 {
1247         return ch_info->band == IEEE80211_BAND_2GHZ;
1248 }
1249
1250 static inline int is_channel_passive(const struct iwl_channel_info *ch)
1251 {
1252         return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1253 }
1254
1255 static inline int is_channel_ibss(const struct iwl_channel_info *ch)
1256 {
1257         return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1258 }
1259
1260 extern const struct iwl_channel_info *iwl_get_channel_info(
1261         const struct iwl_priv *priv, enum ieee80211_band band, u16 channel);
1262
1263 /* Requires full declaration of iwl_priv before including */
1264
1265 #endif                          /* __iwl4965_4965_h__ */