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
  48 /* configuration for the iwl4965 */
  49 extern struct iwl_cfg iwl4965_agn_cfg;
  50
  51 /* Change firmware file name, using "-" and incrementing number,
  52  *   *only* when uCode interface or architecture changes so that it
  53  *   is not compatible with earlier drivers.
  54  * This number will also appear in << 8 position of 1st dword of uCode file */
  55 #define IWL4965_UCODE_API "-1"
  56
  57
  58 /* Default noise level to report when noise measurement is not available.
  59  *   This may be because we're:
  60  *   1)  Not associated (4965, no beacon statistics being sent to driver)
  61  *   2)  Scanning (noise measurement does not apply to associated channel)
  62  *   3)  Receiving CCK (3945 delivers noise info only for OFDM frames)
  63  * Use default noise value of -127 ... this is below the range of measurable
  64  *   Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
  65  *   Also, -127 works better than 0 when averaging frames with/without
  66  *   noise info (e.g. averaging might be done in app); measured dBm values are
  67  *   always negative ... using a negative value as the default keeps all
  68  *   averages within an s8's (used in some apps) range of negative values. */
  69 #define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
  70
  71 enum iwl4965_antenna {
  72         IWL_ANTENNA_DIVERSITY,
  73         IWL_ANTENNA_MAIN,
  74         IWL_ANTENNA_AUX
  75 };
  76
  77 /*
  78  * RTS threshold here is total size [2347] minus 4 FCS bytes
  79  * Per spec:
  80  *   a value of 0 means RTS on all data/management packets
  81  *   a value > max MSDU size means no RTS
  82  * else RTS for data/management frames where MPDU is larger
  83  *   than RTS value.
  84  */
  85 #define DEFAULT_RTS_THRESHOLD     2347U
  86 #define MIN_RTS_THRESHOLD         0U
  87 #define MAX_RTS_THRESHOLD         2347U
  88 #define MAX_MSDU_SIZE             2304U
  89 #define MAX_MPDU_SIZE             2346U
  90 #define DEFAULT_BEACON_INTERVAL   100U
  91 #define DEFAULT_SHORT_RETRY_LIMIT 7U
  92 #define DEFAULT_LONG_RETRY_LIMIT  4U
  93
  94 struct iwl4965_rx_mem_buffer {
  95         dma_addr_t dma_addr;
  96         struct sk_buff *skb;
  97         struct list_head list;
  98 };
  99
 100 /*
 101  * Generic queue structure
 102  *
 103  * Contains common data for Rx and Tx queues
 104  */
 105 struct iwl4965_queue {
 106         int n_bd;              /* number of BDs in this queue */
 107         int write_ptr;       /* 1-st empty entry (index) host_w*/
 108         int read_ptr;         /* last used entry (index) host_r*/
 109         dma_addr_t dma_addr;   /* physical addr for BD's */
 110         int n_window;          /* safe queue window */
 111         u32 id;
 112         int low_mark;          /* low watermark, resume queue if free
 113                                 * space more than this */
 114         int high_mark;         /* high watermark, stop queue if free
 115                                 * space less than this */
 116 } __attribute__ ((packed));
 117
 118 #define MAX_NUM_OF_TBS          (20)
 119
 120 /* One for each TFD */
 121 struct iwl4965_tx_info {
 122         struct ieee80211_tx_status status;
 123         struct sk_buff *skb[MAX_NUM_OF_TBS];
 124 };
 125
 126 /**
 127  * struct iwl4965_tx_queue - Tx Queue for DMA
 128  * @q: generic Rx/Tx queue descriptor
 129  * @bd: base of circular buffer of TFDs
 130  * @cmd: array of command/Tx buffers
 131  * @dma_addr_cmd: physical address of cmd/tx buffer array
 132  * @txb: array of per-TFD driver data
 133  * @need_update: indicates need to update read/write index
 134  * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
 135  *
 136  * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
 137  * descriptors) and required locking structures.
 138  */
 139 struct iwl4965_tx_queue {
 140         struct iwl4965_queue q;
 141         struct iwl4965_tfd_frame *bd;
 142         struct iwl_cmd *cmd;
 143         dma_addr_t dma_addr_cmd;
 144         struct iwl4965_tx_info *txb;
 145         int need_update;
 146         int sched_retry;
 147         int active;
 148 };
 149
 150 #define IWL_NUM_SCAN_RATES         (2)
 151
 152 struct iwl4965_channel_tgd_info {
 153         u8 type;
 154         s8 max_power;
 155 };
 156
 157 struct iwl4965_channel_tgh_info {
 158         s64 last_radar_time;
 159 };
 160
 161 /* current Tx power values to use, one for each rate for each channel.
 162  * requested power is limited by:
 163  * -- regulatory EEPROM limits for this channel
 164  * -- hardware capabilities (clip-powers)
 165  * -- spectrum management
 166  * -- user preference (e.g. iwconfig)
 167  * when requested power is set, base power index must also be set. */
 168 struct iwl4965_channel_power_info {
 169         struct iwl4965_tx_power tpc;    /* actual radio and DSP gain settings */
 170         s8 power_table_index;   /* actual (compenst'd) index into gain table */
 171         s8 base_power_index;    /* gain index for power at factory temp. */
 172         s8 requested_power;     /* power (dBm) requested for this chnl/rate */
 173 };
 174
 175 /* current scan Tx power values to use, one for each scan rate for each
 176  * channel. */
 177 struct iwl4965_scan_power_info {
 178         struct iwl4965_tx_power tpc;    /* actual radio and DSP gain settings */
 179         s8 power_table_index;   /* actual (compenst'd) index into gain table */
 180         s8 requested_power;     /* scan pwr (dBm) requested for chnl/rate */
 181 };
 182
 183 /* For fat_extension_channel */
 184 enum {
 185         HT_IE_EXT_CHANNEL_NONE = 0,
 186         HT_IE_EXT_CHANNEL_ABOVE,
 187         HT_IE_EXT_CHANNEL_INVALID,
 188         HT_IE_EXT_CHANNEL_BELOW,
 189         HT_IE_EXT_CHANNEL_MAX
 190 };
 191
 192 /*
 193  * One for each channel, holds all channel setup data
 194  * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
 195  *     with one another!
 196  */
 197 #define IWL4965_MAX_RATE (33)
 198
 199 struct iwl_channel_info {
 200         struct iwl4965_channel_tgd_info tgd;
 201         struct iwl4965_channel_tgh_info tgh;
 202         struct iwl4965_eeprom_channel eeprom;     /* EEPROM regulatory limit */
 203         struct iwl4965_eeprom_channel fat_eeprom; /* EEPROM regulatory limit for
 204                                                    * FAT channel */
 205
 206         u8 channel;       /* channel number */
 207         u8 flags;         /* flags copied from EEPROM */
 208         s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
 209         s8 curr_txpow;    /* (dBm) regulatory/spectrum/user (not h/w) limit */
 210         s8 min_power;     /* always 0 */
 211         s8 scan_power;    /* (dBm) regul. eeprom, direct scans, any rate */
 212
 213         u8 group_index;   /* 0-4, maps channel to group1/2/3/4/5 */
 214         u8 band_index;    /* 0-4, maps channel to band1/2/3/4/5 */
 215         enum ieee80211_band band;
 216
 217         /* Radio/DSP gain settings for each "normal" data Tx rate.
 218          * These include, in addition to RF and DSP gain, a few fields for
 219          *   remembering/modifying gain settings (indexes). */
 220         struct iwl4965_channel_power_info power_info[IWL4965_MAX_RATE];
 221
 222         /* FAT channel info */
 223         s8 fat_max_power_avg;   /* (dBm) regul. eeprom, normal Tx, any rate */
 224         s8 fat_curr_txpow;      /* (dBm) regulatory/spectrum/user (not h/w) */
 225         s8 fat_min_power;       /* always 0 */
 226         s8 fat_scan_power;      /* (dBm) eeprom, direct scans, any rate */
 227         u8 fat_flags;           /* flags copied from EEPROM */
 228         u8 fat_extension_channel; /* HT_IE_EXT_CHANNEL_* */
 229
 230         /* Radio/DSP gain settings for each scan rate, for directed scans. */
 231         struct iwl4965_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES];
 232 };
 233
 234 struct iwl4965_clip_group {
 235         /* maximum power level to prevent clipping for each rate, derived by
 236          *   us from this band's saturation power in EEPROM */
 237         const s8 clip_powers[IWL_MAX_RATES];
 238 };
 239
 240 #include "iwl-4965-rs.h"
 241
 242 #define IWL_TX_FIFO_AC0 0
 243 #define IWL_TX_FIFO_AC1 1
 244 #define IWL_TX_FIFO_AC2 2
 245 #define IWL_TX_FIFO_AC3 3
 246 #define IWL_TX_FIFO_HCCA_1      5
 247 #define IWL_TX_FIFO_HCCA_2      6
 248 #define IWL_TX_FIFO_NONE        7
 249
 250 /* Minimum number of queues. MAX_NUM is defined in hw specific files */
 251 #define IWL_MIN_NUM_QUEUES      4
 252
 253 /* Power management (not Tx power) structures */
 254
 255 struct iwl4965_power_vec_entry {
 256         struct iwl4965_powertable_cmd cmd;
 257         u8 no_dtim;
 258 };
 259 #define IWL_POWER_RANGE_0  (0)
 260 #define IWL_POWER_RANGE_1  (1)
 261
 262 #define IWL_POWER_MODE_CAM      0x00    /* Continuously Aware Mode, always on */
 263 #define IWL_POWER_INDEX_3       0x03
 264 #define IWL_POWER_INDEX_5       0x05
 265 #define IWL_POWER_AC            0x06
 266 #define IWL_POWER_BATTERY       0x07
 267 #define IWL_POWER_LIMIT         0x07
 268 #define IWL_POWER_MASK          0x0F
 269 #define IWL_POWER_ENABLED       0x10
 270 #define IWL_POWER_LEVEL(x)      ((x) & IWL_POWER_MASK)
 271
 272 struct iwl4965_power_mgr {
 273         spinlock_t lock;
 274         struct iwl4965_power_vec_entry pwr_range_0[IWL_POWER_AC];
 275         struct iwl4965_power_vec_entry pwr_range_1[IWL_POWER_AC];
 276         u8 active_index;
 277         u32 dtim_val;
 278 };
 279
 280 #define IEEE80211_DATA_LEN              2304
 281 #define IEEE80211_4ADDR_LEN             30
 282 #define IEEE80211_HLEN                  (IEEE80211_4ADDR_LEN)
 283 #define IEEE80211_FRAME_LEN             (IEEE80211_DATA_LEN + IEEE80211_HLEN)
 284
 285 struct iwl4965_frame {
 286         union {
 287                 struct ieee80211_hdr frame;
 288                 struct iwl4965_tx_beacon_cmd beacon;
 289                 u8 raw[IEEE80211_FRAME_LEN];
 290                 u8 cmd[360];
 291         } u;
 292         struct list_head list;
 293 };
 294
 295 #define SEQ_TO_QUEUE(x)  ((x >> 8) & 0xbf)
 296 #define QUEUE_TO_SEQ(x)  ((x & 0xbf) << 8)
 297 #define SEQ_TO_INDEX(x) ((u8)(x & 0xff))
 298 #define INDEX_TO_SEQ(x) ((u8)(x & 0xff))
 299 #define SEQ_HUGE_FRAME  (0x4000)
 300 #define SEQ_RX_FRAME    __constant_cpu_to_le16(0x8000)
 301 #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
 302 #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
 303 #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
 304
 305 enum {
 306         /* CMD_SIZE_NORMAL = 0, */
 307         CMD_SIZE_HUGE = (1 << 0),
 308         /* CMD_SYNC = 0, */
 309         CMD_ASYNC = (1 << 1),
 310         /* CMD_NO_SKB = 0, */
 311         CMD_WANT_SKB = (1 << 2),
 312 };
 313
 314 struct iwl_cmd;
 315 struct iwl_priv;
 316
 317 struct iwl_cmd_meta {
 318         struct iwl_cmd_meta *source;
 319         union {
 320                 struct sk_buff *skb;
 321                 int (*callback)(struct iwl_priv *priv,
 322                                 struct iwl_cmd *cmd, struct sk_buff *skb);
 323         } __attribute__ ((packed)) u;
 324
 325         /* The CMD_SIZE_HUGE flag bit indicates that the command
 326          * structure is stored at the end of the shared queue memory. */
 327         u32 flags;
 328
 329 } __attribute__ ((packed));
 330
 331 /**
 332  * struct iwl_cmd
 333  *
 334  * For allocation of the command and tx queues, this establishes the overall
 335  * size of the largest command we send to uCode, except for a scan command
 336  * (which is relatively huge; space is allocated separately).
 337  */
 338 struct iwl_cmd {
 339         struct iwl_cmd_meta meta;       /* driver data */
 340         struct iwl_cmd_header hdr;      /* uCode API */
 341         union {
 342                 struct iwl4965_addsta_cmd addsta;
 343                 struct iwl4965_led_cmd led;
 344                 u32 flags;
 345                 u8 val8;
 346                 u16 val16;
 347                 u32 val32;
 348                 struct iwl4965_bt_cmd bt;
 349                 struct iwl4965_rxon_time_cmd rxon_time;
 350                 struct iwl4965_powertable_cmd powertable;
 351                 struct iwl4965_qosparam_cmd qosparam;
 352                 struct iwl4965_tx_cmd tx;
 353                 struct iwl4965_tx_beacon_cmd tx_beacon;
 354                 struct iwl4965_rxon_assoc_cmd rxon_assoc;
 355                 u8 *indirect;
 356                 u8 payload[360];
 357         } __attribute__ ((packed)) cmd;
 358 } __attribute__ ((packed));
 359
 360 struct iwl_host_cmd {
 361         u8 id;
 362         u16 len;
 363         struct iwl_cmd_meta meta;
 364         const void *data;
 365 };
 366
 367 #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_cmd) - \
 368                               sizeof(struct iwl_cmd_meta))
 369
 370 /*
 371  * RX related structures and functions
 372  */
 373 #define RX_FREE_BUFFERS 64
 374 #define RX_LOW_WATERMARK 8
 375
 376 #define SUP_RATE_11A_MAX_NUM_CHANNELS  8
 377 #define SUP_RATE_11B_MAX_NUM_CHANNELS  4
 378 #define SUP_RATE_11G_MAX_NUM_CHANNELS  12
 379
 380 /**
 381  * struct iwl4965_rx_queue - Rx queue
 382  * @processed: Internal index to last handled Rx packet
 383  * @read: Shared index to newest available Rx buffer
 384  * @write: Shared index to oldest written Rx packet
 385  * @free_count: Number of pre-allocated buffers in rx_free
 386  * @rx_free: list of free SKBs for use
 387  * @rx_used: List of Rx buffers with no SKB
 388  * @need_update: flag to indicate we need to update read/write index
 389  *
 390  * NOTE:  rx_free and rx_used are used as a FIFO for iwl4965_rx_mem_buffers
 391  */
 392 struct iwl4965_rx_queue {
 393         __le32 *bd;
 394         dma_addr_t dma_addr;
 395         struct iwl4965_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
 396         struct iwl4965_rx_mem_buffer *queue[RX_QUEUE_SIZE];
 397         u32 processed;
 398         u32 read;
 399         u32 write;
 400         u32 free_count;
 401         struct list_head rx_free;
 402         struct list_head rx_used;
 403         int need_update;
 404         spinlock_t lock;
 405 };
 406
 407 #define IWL_SUPPORTED_RATES_IE_LEN         8
 408
 409 #define SCAN_INTERVAL 100
 410
 411 #define MAX_A_CHANNELS  252
 412 #define MIN_A_CHANNELS  7
 413
 414 #define MAX_B_CHANNELS  14
 415 #define MIN_B_CHANNELS  1
 416
 417 #define MAX_TID_COUNT        9
 418
 419 #define IWL_INVALID_RATE     0xFF
 420 #define IWL_INVALID_VALUE    -1
 421
 422 #ifdef CONFIG_IWL4965_HT
 423 /**
 424  * struct iwl4965_ht_agg -- aggregation status while waiting for block-ack
 425  * @txq_id: Tx queue used for Tx attempt
 426  * @frame_count: # frames attempted by Tx command
 427  * @wait_for_ba: Expect block-ack before next Tx reply
 428  * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
 429  * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
 430  * @bitmap1: High order, one bit for each frame pending ACK in Tx window
 431  * @rate_n_flags: Rate at which Tx was attempted
 432  *
 433  * If REPLY_TX indicates that aggregation was attempted, driver must wait
 434  * for block ack (REPLY_COMPRESSED_BA).  This struct stores tx reply info
 435  * until block ack arrives.
 436  */
 437 struct iwl4965_ht_agg {
 438         u16 txq_id;
 439         u16 frame_count;
 440         u16 wait_for_ba;
 441         u16 start_idx;
 442         u64 bitmap;
 443         u32 rate_n_flags;
 444 #define IWL_AGG_OFF 0
 445 #define IWL_AGG_ON 1
 446 #define IWL_EMPTYING_HW_QUEUE_ADDBA 2
 447 #define IWL_EMPTYING_HW_QUEUE_DELBA 3
 448         u8 state;
 449 };
 450
 451 #endif /* CONFIG_IWL4965_HT */
 452
 453 struct iwl4965_tid_data {
 454         u16 seq_number;
 455         u16 tfds_in_queue;
 456 #ifdef CONFIG_IWL4965_HT
 457         struct iwl4965_ht_agg agg;
 458 #endif /* CONFIG_IWL4965_HT */
 459 };
 460
 461 struct iwl4965_hw_key {
 462         enum ieee80211_key_alg alg;
 463         int keylen;
 464         u8 keyidx;
 465         struct ieee80211_key_conf *conf;
 466         u8 key[32];
 467 };
 468
 469 union iwl4965_ht_rate_supp {
 470         u16 rates;
 471         struct {
 472                 u8 siso_rate;
 473                 u8 mimo_rate;
 474         };
 475 };
 476
 477 #ifdef CONFIG_IWL4965_HT
 478 #define CFG_HT_RX_AMPDU_FACTOR_DEF  (0x3)
 479 #define CFG_HT_MPDU_DENSITY_2USEC   (0x5)
 480 #define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_2USEC
 481
 482 struct iwl_ht_info {
 483         /* self configuration data */
 484         u8 is_ht;
 485         u8 supported_chan_width;
 486         u16 tx_mimo_ps_mode;
 487         u8 is_green_field;
 488         u8 sgf;                 /* HT_SHORT_GI_* short guard interval */
 489         u8 max_amsdu_size;
 490         u8 ampdu_factor;
 491         u8 mpdu_density;
 492         u8 supp_mcs_set[16];
 493         /* BSS related data */
 494         u8 control_channel;
 495         u8 extension_chan_offset;
 496         u8 tx_chan_width;
 497         u8 ht_protection;
 498         u8 non_GF_STA_present;
 499 };
 500 #endif                          /*CONFIG_IWL4965_HT */
 501
 502 union iwl4965_qos_capabity {
 503         struct {
 504                 u8 edca_count:4;        /* bit 0-3 */
 505                 u8 q_ack:1;             /* bit 4 */
 506                 u8 queue_request:1;     /* bit 5 */
 507                 u8 txop_request:1;      /* bit 6 */
 508                 u8 reserved:1;          /* bit 7 */
 509         } q_AP;
 510         struct {
 511                 u8 acvo_APSD:1;         /* bit 0 */
 512                 u8 acvi_APSD:1;         /* bit 1 */
 513                 u8 ac_bk_APSD:1;        /* bit 2 */
 514                 u8 ac_be_APSD:1;        /* bit 3 */
 515                 u8 q_ack:1;             /* bit 4 */
 516                 u8 max_len:2;           /* bit 5-6 */
 517                 u8 more_data_ack:1;     /* bit 7 */
 518         } q_STA;
 519         u8 val;
 520 };
 521
 522 /* QoS structures */
 523 struct iwl4965_qos_info {
 524         int qos_enable;
 525         int qos_active;
 526         union iwl4965_qos_capabity qos_cap;
 527         struct iwl4965_qosparam_cmd def_qos_parm;
 528 };
 529
 530 #define STA_PS_STATUS_WAKE             0
 531 #define STA_PS_STATUS_SLEEP            1
 532
 533 struct iwl4965_station_entry {
 534         struct iwl4965_addsta_cmd sta;
 535         struct iwl4965_tid_data tid[MAX_TID_COUNT];
 536         u8 used;
 537         u8 ps_status;
 538         struct iwl4965_hw_key keyinfo;
 539 };
 540
 541 /* one for each uCode image (inst/data, boot/init/runtime) */
 542 struct fw_desc {
 543         void *v_addr;           /* access by driver */
 544         dma_addr_t p_addr;      /* access by card's busmaster DMA */
 545         u32 len;                /* bytes */
 546 };
 547
 548 /* uCode file layout */
 549 struct iwl4965_ucode {
 550         __le32 ver;             /* major/minor/subminor */
 551         __le32 inst_size;       /* bytes of runtime instructions */
 552         __le32 data_size;       /* bytes of runtime data */
 553         __le32 init_size;       /* bytes of initialization instructions */
 554         __le32 init_data_size;  /* bytes of initialization data */
 555         __le32 boot_size;       /* bytes of bootstrap instructions */
 556         u8 data[0];             /* data in same order as "size" elements */
 557 };
 558
 559 #define IWL_IBSS_MAC_HASH_SIZE 32
 560
 561 struct iwl4965_ibss_seq {
 562         u8 mac[ETH_ALEN];
 563         u16 seq_num;
 564         u16 frag_num;
 565         unsigned long packet_time;
 566         struct list_head list;
 567 };
 568
 569 struct iwl_sensitivity_ranges {
 570         u16 min_nrg_cck;
 571         u16 max_nrg_cck;
 572
 573         u16 nrg_th_cck;
 574         u16 nrg_th_ofdm;
 575
 576         u16 auto_corr_min_ofdm;
 577         u16 auto_corr_min_ofdm_mrc;
 578         u16 auto_corr_min_ofdm_x1;
 579         u16 auto_corr_min_ofdm_mrc_x1;
 580
 581         u16 auto_corr_max_ofdm;
 582         u16 auto_corr_max_ofdm_mrc;
 583         u16 auto_corr_max_ofdm_x1;
 584         u16 auto_corr_max_ofdm_mrc_x1;
 585
 586         u16 auto_corr_max_cck;
 587         u16 auto_corr_max_cck_mrc;
 588         u16 auto_corr_min_cck;
 589         u16 auto_corr_min_cck_mrc;
 590 };
 591
 592 /**
 593  * struct iwl_hw_params
 594  * @max_txq_num: Max # Tx queues supported
 595  * @tx_cmd_len: Size of Tx command (but not including frame itself)
 596  * @tx_ant_num: Number of TX antennas
 597  * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
 598  * @rx_buffer_size:
 599  * @max_rxq_log: Log-base-2 of max_rxq_size
 600  * @max_stations:
 601  * @bcast_sta_id:
 602  * @struct iwl_sensitivity_ranges: range of sensitivity values
 603  */
 604 struct iwl_hw_params {
 605         u16 max_txq_num;
 606         u16 tx_cmd_len;
 607         u8  tx_chains_num;
 608         u8  rx_chains_num;
 609         u8  valid_tx_ant;
 610         u8  valid_rx_ant;
 611         u16 max_rxq_size;
 612         u16 max_rxq_log;
 613         u32 rx_buf_size;
 614         u32 max_pkt_size;
 615         u8  max_stations;
 616         u8  bcast_sta_id;
 617 #ifdef CONFIG_IWLWIFI_RUN_TIME_CALIB
 618         const struct iwl_sensitivity_ranges *sens;
 619 #endif
 620 };
 621
 622 #define HT_SHORT_GI_20MHZ_ONLY          (1 << 0)
 623 #define HT_SHORT_GI_40MHZ_ONLY          (1 << 1)
 624
 625
 626 #define IWL_RX_HDR(x) ((struct iwl4965_rx_frame_hdr *)(\
 627                        x->u.rx_frame.stats.payload + \
 628                        x->u.rx_frame.stats.phy_count))
 629 #define IWL_RX_END(x) ((struct iwl4965_rx_frame_end *)(\
 630                        IWL_RX_HDR(x)->payload + \
 631                        le16_to_cpu(IWL_RX_HDR(x)->len)))
 632 #define IWL_RX_STATS(x) (&x->u.rx_frame.stats)
 633 #define IWL_RX_DATA(x) (IWL_RX_HDR(x)->payload)
 634
 635
 636 /******************************************************************************
 637  *
 638  * Functions implemented in iwl-base.c which are forward declared here
 639  * for use by iwl-*.c
 640  *
 641  *****************************************************************************/
 642 struct iwl4965_addsta_cmd;
 643 extern int iwl4965_send_add_station(struct iwl_priv *priv,
 644                                 struct iwl4965_addsta_cmd *sta, u8 flags);
 645 extern u8 iwl4965_add_station_flags(struct iwl_priv *priv, const u8 *addr,
 646                           int is_ap, u8 flags, void *ht_data);
 647 extern int iwl4965_is_network_packet(struct iwl_priv *priv,
 648                                  struct ieee80211_hdr *header);
 649 extern int iwl4965_power_init_handle(struct iwl_priv *priv);
 650 extern void iwl4965_handle_data_packet_monitor(struct iwl_priv *priv,
 651                                            struct iwl4965_rx_mem_buffer *rxb,
 652                                            void *data, short len,
 653                                            struct ieee80211_rx_status *stats,
 654                                            u16 phy_flags);
 655 extern int iwl4965_is_duplicate_packet(struct iwl_priv *priv,
 656                                        struct ieee80211_hdr *header);
 657 extern int iwl4965_rx_queue_alloc(struct iwl_priv *priv);
 658 extern void iwl4965_rx_queue_reset(struct iwl_priv *priv,
 659                                struct iwl4965_rx_queue *rxq);
 660 extern int iwl4965_calc_db_from_ratio(int sig_ratio);
 661 extern int iwl4965_calc_sig_qual(int rssi_dbm, int noise_dbm);
 662 extern int iwl4965_tx_queue_init(struct iwl_priv *priv,
 663                              struct iwl4965_tx_queue *txq, int count, u32 id);
 664 extern void iwl4965_rx_replenish(void *data);
 665 extern void iwl4965_tx_queue_free(struct iwl_priv *priv, struct iwl4965_tx_queue *txq);
 666 extern unsigned int iwl4965_fill_beacon_frame(struct iwl_priv *priv,
 667                                         struct ieee80211_hdr *hdr,
 668                                         const u8 *dest, int left);
 669 extern int iwl4965_rx_queue_update_write_ptr(struct iwl_priv *priv,
 670                                          struct iwl4965_rx_queue *q);
 671 extern void iwl4965_set_decrypted_flag(struct iwl_priv *priv, struct sk_buff *skb,
 672                                    u32 decrypt_res,
 673                                    struct ieee80211_rx_status *stats);
 674 extern __le16 *ieee80211_get_qos_ctrl(struct ieee80211_hdr *hdr);
 675 int iwl4965_init_geos(struct iwl_priv *priv);
 676 void iwl4965_free_geos(struct iwl_priv *priv);
 677
 678 extern const u8 iwl4965_broadcast_addr[ETH_ALEN];
 679 int iwl4965_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
 680
 681 /*
 682  * Currently used by iwl-3945-rs... look at restructuring so that it doesn't
 683  * call this... todo... fix that.
 684 */
 685 extern u8 iwl4965_sync_station(struct iwl_priv *priv, int sta_id,
 686                            u16 tx_rate, u8 flags);
 687
 688 /******************************************************************************
 689  *
 690  * Functions implemented in iwl-[34]*.c which are forward declared here
 691  * for use by iwl-base.c
 692  *
 693  * NOTE:  The implementation of these functions are hardware specific
 694  * which is why they are in the hardware specific files (vs. iwl-base.c)
 695  *
 696  * Naming convention --
 697  * iwl4965_         <-- Its part of iwlwifi (should be changed to iwl4965_)
 698  * iwl4965_hw_      <-- Hardware specific (implemented in iwl-XXXX.c by all HW)
 699  * iwlXXXX_     <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
 700  * iwl4965_bg_      <-- Called from work queue context
 701  * iwl4965_mac_     <-- mac80211 callback
 702  *
 703  ****************************************************************************/
 704 extern void iwl4965_hw_rx_handler_setup(struct iwl_priv *priv);
 705 extern void iwl4965_hw_setup_deferred_work(struct iwl_priv *priv);
 706 extern void iwl4965_hw_cancel_deferred_work(struct iwl_priv *priv);
 707 extern int iwl4965_hw_rxq_stop(struct iwl_priv *priv);
 708 extern int iwl4965_hw_set_hw_params(struct iwl_priv *priv);
 709 extern int iwl4965_hw_nic_init(struct iwl_priv *priv);
 710 extern int iwl4965_hw_nic_stop_master(struct iwl_priv *priv);
 711 extern void iwl4965_hw_txq_ctx_free(struct iwl_priv *priv);
 712 extern void iwl4965_hw_txq_ctx_stop(struct iwl_priv *priv);
 713 extern int iwl4965_hw_nic_reset(struct iwl_priv *priv);
 714 extern int iwl4965_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv, void *tfd,
 715                                         dma_addr_t addr, u16 len);
 716 extern int iwl4965_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl4965_tx_queue *txq);
 717 extern int iwl4965_hw_get_temperature(struct iwl_priv *priv);
 718 extern int iwl4965_hw_tx_queue_init(struct iwl_priv *priv,
 719                                 struct iwl4965_tx_queue *txq);
 720 extern unsigned int iwl4965_hw_get_beacon_cmd(struct iwl_priv *priv,
 721                                  struct iwl4965_frame *frame, u8 rate);
 722 extern int iwl4965_hw_get_rx_read(struct iwl_priv *priv);
 723 extern void iwl4965_hw_build_tx_cmd_rate(struct iwl_priv *priv,
 724                                      struct iwl_cmd *cmd,
 725                                      struct ieee80211_tx_control *ctrl,
 726                                      struct ieee80211_hdr *hdr,
 727                                      int sta_id, int tx_id);
 728 extern int iwl4965_hw_reg_send_txpower(struct iwl_priv *priv);
 729 extern int iwl4965_hw_reg_set_txpower(struct iwl_priv *priv, s8 power);
 730 extern void iwl4965_hw_rx_statistics(struct iwl_priv *priv,
 731                                  struct iwl4965_rx_mem_buffer *rxb);
 732 extern void iwl4965_disable_events(struct iwl_priv *priv);
 733 extern int iwl4965_get_temperature(const struct iwl_priv *priv);
 734
 735 /**
 736  * iwl4965_hw_find_station - Find station id for a given BSSID
 737  * @bssid: MAC address of station ID to find
 738  *
 739  * NOTE:  This should not be hardware specific but the code has
 740  * not yet been merged into a single common layer for managing the
 741  * station tables.
 742  */
 743 extern u8 iwl4965_hw_find_station(struct iwl_priv *priv, const u8 *bssid);
 744
 745 extern int iwl4965_hw_channel_switch(struct iwl_priv *priv, u16 channel);
 746 extern int iwl4965_tx_queue_reclaim(struct iwl_priv *priv, int txq_id, int index);
 747 extern int iwl4965_queue_space(const struct iwl4965_queue *q);
 748 struct iwl_priv;
 749
 750 extern void iwl4965_radio_kill_sw(struct iwl_priv *priv, int disable_radio);
 751 /*
 752  * Forward declare iwl-4965.c functions for iwl-base.c
 753  */
 754 extern int iwl4965_tx_queue_update_wr_ptr(struct iwl_priv *priv,
 755                                           struct iwl4965_tx_queue *txq,
 756                                           u16 byte_cnt);
 757 extern void iwl4965_add_station(struct iwl_priv *priv, const u8 *addr,
 758                                 int is_ap);
 759 extern void iwl4965_set_rxon_chain(struct iwl_priv *priv);
 760 extern int iwl4965_alive_notify(struct iwl_priv *priv);
 761 extern void iwl4965_update_rate_scaling(struct iwl_priv *priv, u8 mode);
 762 extern void iwl4965_rf_kill_ct_config(struct iwl_priv *priv);
 763 extern void iwl4965_hwrate_to_tx_control(struct iwl_priv *priv,
 764                                          u32 rate_n_flags,
 765                                          struct ieee80211_tx_control *control);
 766
 767 #ifdef CONFIG_IWL4965_HT
 768 void iwl4965_init_ht_hw_capab(struct iwl_priv *priv,
 769                               struct ieee80211_ht_info *ht_info,
 770                               enum ieee80211_band band);
 771 void iwl4965_set_rxon_ht(struct iwl_priv *priv,
 772                          struct iwl_ht_info *ht_info);
 773 void iwl4965_set_ht_add_station(struct iwl_priv *priv, u8 index,
 774                                 struct ieee80211_ht_info *sta_ht_inf);
 775 int iwl4965_mac_ampdu_action(struct ieee80211_hw *hw,
 776                                     enum ieee80211_ampdu_mlme_action action,
 777                                     const u8 *addr, u16 tid, u16 *ssn);
 778 int iwl4965_check_empty_hw_queue(struct iwl_priv *priv, int sta_id,
 779                                         u8 tid, int txq_id);
 780 #else
 781 static inline void iwl4965_init_ht_hw_capab(struct iwl_priv *priv,
 782                                             struct ieee80211_ht_info *ht_info,
 783                                             enum ieee80211_band band) {}
 784
 785 #endif /*CONFIG_IWL4965_HT */
 786 /* Structures, enum, and defines specific to the 4965 */
 787
 788 #define IWL4965_KW_SIZE 0x1000  /*4k */
 789
 790 struct iwl4965_kw {
 791         dma_addr_t dma_addr;
 792         void *v_addr;
 793         size_t size;
 794 };
 795
 796 #define IWL_CHANNEL_WIDTH_20MHZ   0
 797 #define IWL_CHANNEL_WIDTH_40MHZ   1
 798
 799 #define IWL_MIMO_PS_STATIC        0
 800 #define IWL_MIMO_PS_NONE          3
 801 #define IWL_MIMO_PS_DYNAMIC       1
 802 #define IWL_MIMO_PS_INVALID       2
 803
 804 #define IWL_OPERATION_MODE_AUTO     0
 805 #define IWL_OPERATION_MODE_HT_ONLY  1
 806 #define IWL_OPERATION_MODE_MIXED    2
 807 #define IWL_OPERATION_MODE_20MHZ    3
 808
 809 #define IWL_EXT_CHANNEL_OFFSET_NONE      0
 810 #define IWL_EXT_CHANNEL_OFFSET_ABOVE     1
 811 #define IWL_EXT_CHANNEL_OFFSET_RESERVE1  2
 812 #define IWL_EXT_CHANNEL_OFFSET_BELOW     3
 813
 814 #define NRG_NUM_PREV_STAT_L     20
 815 #define NUM_RX_CHAINS           (3)
 816
 817 #define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
 818
 819 struct iwl4965_lq_mngr {
 820         spinlock_t lock;
 821         s32 max_window_size;
 822         s32 *expected_tpt;
 823         u8 *next_higher_rate;
 824         u8 *next_lower_rate;
 825         unsigned long stamp;
 826         unsigned long stamp_last;
 827         u32 flush_time;
 828         u32 tx_packets;
 829         u8 lq_ready;
 830 };
 831
 832 /* Sensitivity and chain noise calibration */
 833 #define INTERFERENCE_DATA_AVAILABLE     __constant_cpu_to_le32(1)
 834 #define INITIALIZATION_VALUE            0xFFFF
 835 #define CAL_NUM_OF_BEACONS              20
 836 #define MAXIMUM_ALLOWED_PATHLOSS        15
 837
 838 #define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
 839
 840 #define MAX_FA_OFDM  50
 841 #define MIN_FA_OFDM  5
 842 #define MAX_FA_CCK   50
 843 #define MIN_FA_CCK   5
 844
 845 #define AUTO_CORR_STEP_OFDM       1
 846
 847 #define AUTO_CORR_STEP_CCK     3
 848 #define AUTO_CORR_MAX_TH_CCK   160
 849
 850 #define NRG_DIFF               2
 851 #define NRG_STEP_CCK           2
 852 #define NRG_MARGIN             8
 853 #define MAX_NUMBER_CCK_NO_FA 100
 854
 855 #define AUTO_CORR_CCK_MIN_VAL_DEF    (125)
 856
 857 #define CHAIN_A             0
 858 #define CHAIN_B             1
 859 #define CHAIN_C             2
 860 #define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
 861 #define ALL_BAND_FILTER                 0xFF00
 862 #define IN_BAND_FILTER                  0xFF
 863 #define MIN_AVERAGE_NOISE_MAX_VALUE     0xFFFFFFFF
 864
 865 enum iwl4965_false_alarm_state {
 866         IWL_FA_TOO_MANY = 0,
 867         IWL_FA_TOO_FEW = 1,
 868         IWL_FA_GOOD_RANGE = 2,
 869 };
 870
 871 enum iwl4965_chain_noise_state {
 872         IWL_CHAIN_NOISE_ALIVE = 0,  /* must be 0 */
 873         IWL_CHAIN_NOISE_ACCUMULATE = 1,
 874         IWL_CHAIN_NOISE_CALIBRATED = 2,
 875 };
 876
 877 enum iwl4965_calib_enabled_state {
 878         IWL_CALIB_DISABLED = 0,  /* must be 0 */
 879         IWL_CALIB_ENABLED = 1,
 880 };
 881
 882 struct statistics_general_data {
 883         u32 beacon_silence_rssi_a;
 884         u32 beacon_silence_rssi_b;
 885         u32 beacon_silence_rssi_c;
 886         u32 beacon_energy_a;
 887         u32 beacon_energy_b;
 888         u32 beacon_energy_c;
 889 };
 890
 891 #ifdef CONFIG_IWLWIFI_RUN_TIME_CALIB
 892 /* Sensitivity calib data */
 893 struct iwl_sensitivity_data {
 894         u32 auto_corr_ofdm;
 895         u32 auto_corr_ofdm_mrc;
 896         u32 auto_corr_ofdm_x1;
 897         u32 auto_corr_ofdm_mrc_x1;
 898         u32 auto_corr_cck;
 899         u32 auto_corr_cck_mrc;
 900
 901         u32 last_bad_plcp_cnt_ofdm;
 902         u32 last_fa_cnt_ofdm;
 903         u32 last_bad_plcp_cnt_cck;
 904         u32 last_fa_cnt_cck;
 905
 906         u32 nrg_curr_state;
 907         u32 nrg_prev_state;
 908         u32 nrg_value[10];
 909         u8  nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
 910         u32 nrg_silence_ref;
 911         u32 nrg_energy_idx;
 912         u32 nrg_silence_idx;
 913         u32 nrg_th_cck;
 914         s32 nrg_auto_corr_silence_diff;
 915         u32 num_in_cck_no_fa;
 916         u32 nrg_th_ofdm;
 917 };
 918
 919 /* Chain noise (differential Rx gain) calib data */
 920 struct iwl_chain_noise_data {
 921         u8 state;
 922         u16 beacon_count;
 923         u32 chain_noise_a;
 924         u32 chain_noise_b;
 925         u32 chain_noise_c;
 926         u32 chain_signal_a;
 927         u32 chain_signal_b;
 928         u32 chain_signal_c;
 929         u8 disconn_array[NUM_RX_CHAINS];
 930         u8 delta_gain_code[NUM_RX_CHAINS];
 931         u8 radio_write;
 932 };
 933 #endif /* CONFIG_IWLWIFI_RUN_TIME_CALIB */
 934
 935 #define EEPROM_SEM_TIMEOUT 10           /* milliseconds */
 936 #define EEPROM_SEM_RETRY_LIMIT 1000     /* number of attempts (not time) */
 937
 938
 939 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
 940
 941 enum {
 942         MEASUREMENT_READY = (1 << 0),
 943         MEASUREMENT_ACTIVE = (1 << 1),
 944 };
 945
 946 #endif
 947
 948 #define IWL_MAX_NUM_QUEUES      20 /* FIXME: do dynamic allocation */
 949
 950 struct iwl_priv {
 951
 952         /* ieee device used by generic ieee processing code */
 953         struct ieee80211_hw *hw;
 954         struct ieee80211_channel *ieee_channels;
 955         struct ieee80211_rate *ieee_rates;
 956         struct iwl_cfg *cfg;
 957
 958         /* temporary frame storage list */
 959         struct list_head free_frames;
 960         int frames_count;
 961
 962         enum ieee80211_band band;
 963         int alloc_rxb_skb;
 964         bool add_radiotap;
 965
 966         void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
 967                                        struct iwl4965_rx_mem_buffer *rxb);
 968
 969         struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
 970
 971 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
 972         /* spectrum measurement report caching */
 973         struct iwl4965_spectrum_notification measure_report;
 974         u8 measurement_status;
 975 #endif
 976         /* ucode beacon time */
 977         u32 ucode_beacon_time;
 978
 979         /* we allocate array of iwl4965_channel_info for NIC's valid channels.
 980          *    Access via channel # using indirect index array */
 981         struct iwl_channel_info *channel_info;  /* channel info array */
 982         u8 channel_count;       /* # of channels */
 983
 984         /* each calibration channel group in the EEPROM has a derived
 985          * clip setting for each rate. */
 986         const struct iwl4965_clip_group clip_groups[5];
 987
 988         /* thermal calibration */
 989         s32 temperature;        /* degrees Kelvin */
 990         s32 last_temperature;
 991
 992         /* Scan related variables */
 993         unsigned long last_scan_jiffies;
 994         unsigned long next_scan_jiffies;
 995         unsigned long scan_start;
 996         unsigned long scan_pass_start;
 997         unsigned long scan_start_tsf;
 998         int scan_bands;
 999         int one_direct_scan;
1000         u8 direct_ssid_len;
1001         u8 direct_ssid[IW_ESSID_MAX_SIZE];
1002         struct iwl4965_scan_cmd *scan;
1003
1004         /* spinlock */
1005         spinlock_t lock;        /* protect general shared data */
1006         spinlock_t hcmd_lock;   /* protect hcmd */
1007         struct mutex mutex;
1008
1009         /* basic pci-network driver stuff */
1010         struct pci_dev *pci_dev;
1011
1012         /* pci hardware address support */
1013         void __iomem *hw_base;
1014
1015         /* uCode images, save to reload in case of failure */
1016         struct fw_desc ucode_code;      /* runtime inst */
1017         struct fw_desc ucode_data;      /* runtime data original */
1018         struct fw_desc ucode_data_backup;       /* runtime data save/restore */
1019         struct fw_desc ucode_init;      /* initialization inst */
1020         struct fw_desc ucode_init_data; /* initialization data */
1021         struct fw_desc ucode_boot;      /* bootstrap inst */
1022
1023
1024         struct iwl4965_rxon_time_cmd rxon_timing;
1025
1026         /* We declare this const so it can only be
1027          * changed via explicit cast within the
1028          * routines that actually update the physical
1029          * hardware */
1030         const struct iwl4965_rxon_cmd active_rxon;
1031         struct iwl4965_rxon_cmd staging_rxon;
1032
1033         int error_recovering;
1034         struct iwl4965_rxon_cmd recovery_rxon;
1035
1036         /* 1st responses from initialize and runtime uCode images.
1037          * 4965's initialize alive response contains some calibration data. */
1038         struct iwl4965_init_alive_resp card_alive_init;
1039         struct iwl4965_alive_resp card_alive;
1040 #ifdef CONFIG_IWLWIFI_RFKILL
1041         struct iwl_rfkill_mngr rfkill_mngr;
1042 #endif
1043
1044 #ifdef CONFIG_IWLWIFI_LEDS
1045         struct iwl4965_led led[IWL_LED_TRG_MAX];
1046         unsigned long last_blink_time;
1047         u8 last_blink_rate;
1048         u8 allow_blinking;
1049         u64 led_tpt;
1050 #endif
1051
1052         u16 active_rate;
1053         u16 active_rate_basic;
1054
1055         u8 assoc_station_added;
1056         u8 use_ant_b_for_management_frame;      /* Tx antenna selection */
1057         u8 valid_antenna;       /* Bit mask of antennas actually connected */
1058         u8 start_calib;
1059 #ifdef CONFIG_IWLWIFI_RUN_TIME_CALIB
1060         struct iwl_sensitivity_data sensitivity_data;
1061         struct iwl_chain_noise_data chain_noise_data;
1062         __le16 sensitivity_tbl[HD_TABLE_SIZE];
1063 #endif /*CONFIG_IWLWIFI_RUN_TIME_CALIB*/
1064
1065 #ifdef CONFIG_IWL4965_HT
1066         struct iwl_ht_info current_ht_config;
1067 #endif
1068         u8 last_phy_res[100];
1069
1070         /* Rate scaling data */
1071         struct iwl4965_lq_mngr lq_mngr;
1072
1073         /* Rate scaling data */
1074         s8 data_retry_limit;
1075         u8 retry_rate;
1076
1077         wait_queue_head_t wait_command_queue;
1078
1079         int activity_timer_active;
1080
1081         /* Rx and Tx DMA processing queues */
1082         struct iwl4965_rx_queue rxq;
1083         struct iwl4965_tx_queue txq[IWL_MAX_NUM_QUEUES];
1084         unsigned long txq_ctx_active_msk;
1085         struct iwl4965_kw kw;   /* keep warm address */
1086         u32 scd_base_addr;      /* scheduler sram base address */
1087
1088         unsigned long status;
1089
1090         int last_rx_rssi;       /* From Rx packet statisitics */
1091         int last_rx_noise;      /* From beacon statistics */
1092
1093         /* counts mgmt, ctl, and data packets */
1094         struct traffic_stats {
1095                 u32 cnt;
1096                 u64 bytes;
1097         } tx_stats[3], rx_stats[3];
1098
1099         struct iwl4965_power_mgr power_data;
1100
1101         struct iwl4965_notif_statistics statistics;
1102         unsigned long last_statistics_time;
1103
1104         /* context information */
1105         u8 essid[IW_ESSID_MAX_SIZE];
1106         u8 essid_len;
1107         u16 rates_mask;
1108
1109         u32 power_mode;
1110         u32 antenna;
1111         u8 bssid[ETH_ALEN];
1112         u16 rts_threshold;
1113         u8 mac_addr[ETH_ALEN];
1114
1115         /*station table variables */
1116         spinlock_t sta_lock;
1117         int num_stations;
1118         struct iwl4965_station_entry stations[IWL_STATION_COUNT];
1119         struct iwl_wep_key wep_keys[WEP_KEYS_MAX];
1120         u8 default_wep_key;
1121         u8 key_mapping_key;
1122         unsigned long ucode_key_table;
1123
1124         /* Indication if ieee80211_ops->open has been called */
1125         u8 is_open;
1126
1127         u8 mac80211_registered;
1128
1129         u32 notif_missed_beacons;
1130
1131         /* Rx'd packet timing information */
1132         u32 last_beacon_time;
1133         u64 last_tsf;
1134
1135         /* Duplicate packet detection */
1136         u16 last_seq_num;
1137         u16 last_frag_num;
1138         unsigned long last_packet_time;
1139
1140         /* Hash table for finding stations in IBSS network */
1141         struct list_head ibss_mac_hash[IWL_IBSS_MAC_HASH_SIZE];
1142
1143         /* eeprom */
1144         struct iwl4965_eeprom eeprom;
1145
1146         enum ieee80211_if_types iw_mode;
1147
1148         struct sk_buff *ibss_beacon;
1149
1150         /* Last Rx'd beacon timestamp */
1151         u64 timestamp;
1152         u16 beacon_int;
1153         struct ieee80211_vif *vif;
1154
1155         struct iwl_hw_params hw_params;
1156         /* driver/uCode shared Tx Byte Counts and Rx status */
1157         void *shared_virt;
1158         /* Physical Pointer to Tx Byte Counts and Rx status */
1159         dma_addr_t shared_phys;
1160
1161         /* Current association information needed to configure the
1162          * hardware */
1163         u16 assoc_id;
1164         u16 assoc_capability;
1165         u8 ps_mode;
1166
1167         struct iwl4965_qos_info qos_data;
1168
1169         struct workqueue_struct *workqueue;
1170
1171         struct work_struct up;
1172         struct work_struct restart;
1173         struct work_struct calibrated_work;
1174         struct work_struct scan_completed;
1175         struct work_struct rx_replenish;
1176         struct work_struct rf_kill;
1177         struct work_struct abort_scan;
1178         struct work_struct update_link_led;
1179         struct work_struct auth_work;
1180         struct work_struct report_work;
1181         struct work_struct request_scan;
1182         struct work_struct beacon_update;
1183
1184         struct tasklet_struct irq_tasklet;
1185
1186         struct delayed_work init_alive_start;
1187         struct delayed_work alive_start;
1188         struct delayed_work activity_timer;
1189         struct delayed_work thermal_periodic;
1190         struct delayed_work gather_stats;
1191         struct delayed_work scan_check;
1192         struct delayed_work post_associate;
1193
1194 #define IWL_DEFAULT_TX_POWER 0x0F
1195         s8 user_txpower_limit;
1196         s8 max_channel_txpower_limit;
1197
1198 #ifdef CONFIG_PM
1199         u32 pm_state[16];
1200 #endif
1201
1202 #ifdef CONFIG_IWLWIFI_DEBUG
1203         /* debugging info */
1204         u32 framecnt_to_us;
1205         atomic_t restrict_refcnt;
1206 #ifdef CONFIG_IWLWIFI_DEBUGFS
1207         /* debugfs */
1208         struct iwl_debugfs *dbgfs;
1209 #endif /* CONFIG_IWLWIFI_DEBUGFS */
1210 #endif /* CONFIG_IWLWIFI_DEBUG */
1211
1212         struct work_struct txpower_work;
1213 #ifdef CONFIG_IWL4965_RUN_TIME_CALIB
1214         struct work_struct sensitivity_work;
1215 #endif
1216         struct timer_list statistics_periodic;
1217 }; /*iwl_priv */
1218
1219 static inline int iwl_is_associated(struct iwl_priv *priv)
1220 {
1221         return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
1222 }
1223
1224 static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
1225 {
1226         if (ch_info == NULL)
1227                 return 0;
1228         return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
1229 }
1230
1231 static inline int is_channel_narrow(const struct iwl_channel_info *ch_info)
1232 {
1233         return (ch_info->flags & EEPROM_CHANNEL_NARROW) ? 1 : 0;
1234 }
1235
1236 static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
1237 {
1238         return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
1239 }
1240
1241 static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
1242 {
1243         return ch_info->band == IEEE80211_BAND_5GHZ;
1244 }
1245
1246 static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
1247 {
1248         return ch_info->band == IEEE80211_BAND_2GHZ;
1249 }
1250
1251 static inline int is_channel_passive(const struct iwl_channel_info *ch)
1252 {
1253         return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1254 }
1255
1256 static inline int is_channel_ibss(const struct iwl_channel_info *ch)
1257 {
1258         return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1259 }
1260
1261 extern const struct iwl_channel_info *iwl_get_channel_info(
1262         const struct iwl_priv *priv, enum ieee80211_band band, u16 channel);
1263
1264 /* Requires full declaration of iwl_priv before including */
1265
1266 #endif                          /* __iwl4965_4965_h__ */