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