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

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2003 - 2008 Intel Corporation. All rights reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of version 2 of the GNU General Public License as
   7  * published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12  * more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along with
  15  * this program; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
  17  *
  18  * The full GNU General Public License is included in this distribution in the
  19  * file called LICENSE.
  20  *
  21  * Contact Information:
  22  * James P. Ketrenos <ipw2100-admin@linux.intel.com>
  23  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  24  *
  25  *****************************************************************************/
  26 /*
  27  * Please use this file (iwl-dev.h) for driver implementation definitions.
  28  * Please use iwl-commands.h for uCode API definitions.
  29  * Please use iwl-4965-hw.h for hardware-related definitions.
  30  */
  31
  32 #ifndef __iwl_4965_h__
  33 #define __iwl_4965_h__
  34
  35 #include <linux/pci.h> /* for struct pci_device_id */
  36 #include <linux/kernel.h>
  37 #include <net/ieee80211_radiotap.h>
  38
  39 #define DRV_NAME        "iwl4965"
  40 #include "iwl-rfkill.h"
  41 #include "iwl-eeprom.h"
  42 #include "iwl-4965-hw.h"
  43 #include "iwl-csr.h"
  44 #include "iwl-prph.h"
  45 #include "iwl-debug.h"
  46 #include "iwl-led.h"
  47 #include "iwl-power.h"
  48
  49 /* configuration for the iwl4965 */
  50 extern struct iwl_cfg iwl4965_agn_cfg;
  51 extern struct iwl_cfg iwl5300_agn_cfg;
  52 extern struct iwl_cfg iwl5100_agn_cfg;
  53 extern struct iwl_cfg iwl5350_agn_cfg;
  54
  55 /* Change firmware file name, using "-" and incrementing number,
  56  *   *only* when uCode interface or architecture changes so that it
  57  *   is not compatible with earlier drivers.
  58  * This number will also appear in << 8 position of 1st dword of uCode file */
  59 #define IWL4965_UCODE_API "-1"
  60
  61 /* CT-KILL constants */
  62 #define CT_KILL_THRESHOLD       110 /* in Celsius */
  63
  64 /* Default noise level to report when noise measurement is not available.
  65  *   This may be because we're:
  66  *   1)  Not associated (4965, no beacon statistics being sent to driver)
  67  *   2)  Scanning (noise measurement does not apply to associated channel)
  68  *   3)  Receiving CCK (3945 delivers noise info only for OFDM frames)
  69  * Use default noise value of -127 ... this is below the range of measurable
  70  *   Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
  71  *   Also, -127 works better than 0 when averaging frames with/without
  72  *   noise info (e.g. averaging might be done in app); measured dBm values are
  73  *   always negative ... using a negative value as the default keeps all
  74  *   averages within an s8's (used in some apps) range of negative values. */
  75 #define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
  76
  77 /*
  78  * RTS threshold here is total size [2347] minus 4 FCS bytes
  79  * Per spec:
  80  *   a value of 0 means RTS on all data/management packets
  81  *   a value > max MSDU size means no RTS
  82  * else RTS for data/management frames where MPDU is larger
  83  *   than RTS value.
  84  */
  85 #define DEFAULT_RTS_THRESHOLD     2347U
  86 #define MIN_RTS_THRESHOLD         0U
  87 #define MAX_RTS_THRESHOLD         2347U
  88 #define MAX_MSDU_SIZE             2304U
  89 #define MAX_MPDU_SIZE             2346U
  90 #define DEFAULT_BEACON_INTERVAL   100U
  91 #define DEFAULT_SHORT_RETRY_LIMIT 7U
  92 #define DEFAULT_LONG_RETRY_LIMIT  4U
  93
  94 struct iwl_rx_mem_buffer {
  95         dma_addr_t dma_addr;
  96         struct sk_buff *skb;
  97         struct list_head list;
  98 };
  99
 100 /*
 101  * Generic queue structure
 102  *
 103  * Contains common data for Rx and Tx queues
 104  */
 105 struct iwl_queue {
 106         int n_bd;              /* number of BDs in this queue */
 107         int write_ptr;       /* 1-st empty entry (index) host_w*/
 108         int read_ptr;         /* last used entry (index) host_r*/
 109         dma_addr_t dma_addr;   /* physical addr for BD's */
 110         int n_window;          /* safe queue window */
 111         u32 id;
 112         int low_mark;          /* low watermark, resume queue if free
 113                                 * space more than this */
 114         int high_mark;         /* high watermark, stop queue if free
 115                                 * space less than this */
 116 } __attribute__ ((packed));
 117
 118 #define MAX_NUM_OF_TBS          (20)
 119
 120 /* One for each TFD */
 121 struct iwl_tx_info {
 122         struct sk_buff *skb[MAX_NUM_OF_TBS];
 123 };
 124
 125 /**
 126  * struct iwl_tx_queue - Tx Queue for DMA
 127  * @q: generic Rx/Tx queue descriptor
 128  * @bd: base of circular buffer of TFDs
 129  * @cmd: array of command/Tx buffers
 130  * @dma_addr_cmd: physical address of cmd/tx buffer array
 131  * @txb: array of per-TFD driver data
 132  * @need_update: indicates need to update read/write index
 133  * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
 134  *
 135  * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
 136  * descriptors) and required locking structures.
 137  */
 138 struct iwl_tx_queue {
 139         struct iwl_queue q;
 140         struct iwl_tfd_frame *bd;
 141         struct iwl_cmd *cmd;
 142         dma_addr_t dma_addr_cmd;
 143         struct iwl_tx_info *txb;
 144         int need_update;
 145         int sched_retry;
 146         int active;
 147 };
 148
 149 #define IWL_NUM_SCAN_RATES         (2)
 150
 151 struct iwl4965_channel_tgd_info {
 152         u8 type;
 153         s8 max_power;
 154 };
 155
 156 struct iwl4965_channel_tgh_info {
 157         s64 last_radar_time;
 158 };
 159
 160 /* current Tx power values to use, one for each rate for each channel.
 161  * requested power is limited by:
 162  * -- regulatory EEPROM limits for this channel
 163  * -- hardware capabilities (clip-powers)
 164  * -- spectrum management
 165  * -- user preference (e.g. iwconfig)
 166  * when requested power is set, base power index must also be set. */
 167 struct iwl4965_channel_power_info {
 168         struct iwl4965_tx_power tpc;    /* actual radio and DSP gain settings */
 169         s8 power_table_index;   /* actual (compenst'd) index into gain table */
 170         s8 base_power_index;    /* gain index for power at factory temp. */
 171         s8 requested_power;     /* power (dBm) requested for this chnl/rate */
 172 };
 173
 174 /* current scan Tx power values to use, one for each scan rate for each
 175  * channel. */
 176 struct iwl4965_scan_power_info {
 177         struct iwl4965_tx_power tpc;    /* actual radio and DSP gain settings */
 178         s8 power_table_index;   /* actual (compenst'd) index into gain table */
 179         s8 requested_power;     /* scan pwr (dBm) requested for chnl/rate */
 180 };
 181
 182 /*
 183  * One for each channel, holds all channel setup data
 184  * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
 185  *     with one another!
 186  */
 187 #define IWL4965_MAX_RATE (33)
 188
 189 struct iwl_channel_info {
 190         struct iwl4965_channel_tgd_info tgd;
 191         struct iwl4965_channel_tgh_info tgh;
 192         struct iwl_eeprom_channel eeprom;       /* EEPROM regulatory limit */
 193         struct iwl_eeprom_channel fat_eeprom;   /* EEPROM regulatory limit for
 194                                                  * FAT channel */
 195
 196         u8 channel;       /* channel number */
 197         u8 flags;         /* flags copied from EEPROM */
 198         s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
 199         s8 curr_txpow;    /* (dBm) regulatory/spectrum/user (not h/w) limit */
 200         s8 min_power;     /* always 0 */
 201         s8 scan_power;    /* (dBm) regul. eeprom, direct scans, any rate */
 202
 203         u8 group_index;   /* 0-4, maps channel to group1/2/3/4/5 */
 204         u8 band_index;    /* 0-4, maps channel to band1/2/3/4/5 */
 205         enum ieee80211_band band;
 206
 207         /* Radio/DSP gain settings for each "normal" data Tx rate.
 208          * These include, in addition to RF and DSP gain, a few fields for
 209          *   remembering/modifying gain settings (indexes). */
 210         struct iwl4965_channel_power_info power_info[IWL4965_MAX_RATE];
 211
 212         /* FAT channel info */
 213         s8 fat_max_power_avg;   /* (dBm) regul. eeprom, normal Tx, any rate */
 214         s8 fat_curr_txpow;      /* (dBm) regulatory/spectrum/user (not h/w) */
 215         s8 fat_min_power;       /* always 0 */
 216         s8 fat_scan_power;      /* (dBm) eeprom, direct scans, any rate */
 217         u8 fat_flags;           /* flags copied from EEPROM */
 218         u8 fat_extension_channel; /* HT_IE_EXT_CHANNEL_* */
 219
 220         /* Radio/DSP gain settings for each scan rate, for directed scans. */
 221         struct iwl4965_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES];
 222 };
 223
 224 struct iwl4965_clip_group {
 225         /* maximum power level to prevent clipping for each rate, derived by
 226          *   us from this band's saturation power in EEPROM */
 227         const s8 clip_powers[IWL_MAX_RATES];
 228 };
 229
 230 #include "iwl-4965-rs.h"
 231
 232 #define IWL_TX_FIFO_AC0 0
 233 #define IWL_TX_FIFO_AC1 1
 234 #define IWL_TX_FIFO_AC2 2
 235 #define IWL_TX_FIFO_AC3 3
 236 #define IWL_TX_FIFO_HCCA_1      5
 237 #define IWL_TX_FIFO_HCCA_2      6
 238 #define IWL_TX_FIFO_NONE        7
 239
 240 /* Minimum number of queues. MAX_NUM is defined in hw specific files */
 241 #define IWL_MIN_NUM_QUEUES      4
 242
 243 /* Power management (not Tx power) structures */
 244
 245 enum iwl_pwr_src {
 246         IWL_PWR_SRC_VMAIN,
 247         IWL_PWR_SRC_VAUX,
 248 };
 249
 250 #define IEEE80211_DATA_LEN              2304
 251 #define IEEE80211_4ADDR_LEN             30
 252 #define IEEE80211_HLEN                  (IEEE80211_4ADDR_LEN)
 253 #define IEEE80211_FRAME_LEN             (IEEE80211_DATA_LEN + IEEE80211_HLEN)
 254
 255 struct iwl_frame {
 256         union {
 257                 struct ieee80211_hdr frame;
 258                 struct iwl4965_tx_beacon_cmd beacon;
 259                 u8 raw[IEEE80211_FRAME_LEN];
 260                 u8 cmd[360];
 261         } u;
 262         struct list_head list;
 263 };
 264
 265 #define SEQ_TO_QUEUE(x)  ((x >> 8) & 0xbf)
 266 #define QUEUE_TO_SEQ(x)  ((x & 0xbf) << 8)
 267 #define SEQ_TO_INDEX(x) ((u8)(x & 0xff))
 268 #define INDEX_TO_SEQ(x) ((u8)(x & 0xff))
 269 #define SEQ_HUGE_FRAME  (0x4000)
 270 #define SEQ_RX_FRAME    __constant_cpu_to_le16(0x8000)
 271 #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
 272 #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
 273 #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
 274
 275 enum {
 276         /* CMD_SIZE_NORMAL = 0, */
 277         CMD_SIZE_HUGE = (1 << 0),
 278         /* CMD_SYNC = 0, */
 279         CMD_ASYNC = (1 << 1),
 280         /* CMD_NO_SKB = 0, */
 281         CMD_WANT_SKB = (1 << 2),
 282 };
 283
 284 struct iwl_cmd;
 285 struct iwl_priv;
 286
 287 struct iwl_cmd_meta {
 288         struct iwl_cmd_meta *source;
 289         union {
 290                 struct sk_buff *skb;
 291                 int (*callback)(struct iwl_priv *priv,
 292                                 struct iwl_cmd *cmd, struct sk_buff *skb);
 293         } __attribute__ ((packed)) u;
 294
 295         /* The CMD_SIZE_HUGE flag bit indicates that the command
 296          * structure is stored at the end of the shared queue memory. */
 297         u32 flags;
 298
 299 } __attribute__ ((packed));
 300
 301 #define IWL_CMD_MAX_PAYLOAD 320
 302
 303 /**
 304  * struct iwl_cmd
 305  *
 306  * For allocation of the command and tx queues, this establishes the overall
 307  * size of the largest command we send to uCode, except for a scan command
 308  * (which is relatively huge; space is allocated separately).
 309  */
 310 struct iwl_cmd {
 311         struct iwl_cmd_meta meta;       /* driver data */
 312         struct iwl_cmd_header hdr;      /* uCode API */
 313         union {
 314                 struct iwl_addsta_cmd addsta;
 315                 struct iwl4965_led_cmd led;
 316                 u32 flags;
 317                 u8 val8;
 318                 u16 val16;
 319                 u32 val32;
 320                 struct iwl4965_bt_cmd bt;
 321                 struct iwl4965_rxon_time_cmd rxon_time;
 322                 struct iwl4965_powertable_cmd powertable;
 323                 struct iwl4965_qosparam_cmd qosparam;
 324                 struct iwl_tx_cmd tx;
 325                 struct iwl4965_tx_beacon_cmd tx_beacon;
 326                 struct iwl4965_rxon_assoc_cmd rxon_assoc;
 327                 struct iwl_rem_sta_cmd rm_sta;
 328                 u8 *indirect;
 329                 u8 payload[IWL_CMD_MAX_PAYLOAD];
 330         } __attribute__ ((packed)) cmd;
 331 } __attribute__ ((packed));
 332
 333 struct iwl_host_cmd {
 334         u8 id;
 335         u16 len;
 336         struct iwl_cmd_meta meta;
 337         const void *data;
 338 };
 339
 340 #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_cmd) - \
 341                               sizeof(struct iwl_cmd_meta))
 342
 343 /*
 344  * RX related structures and functions
 345  */
 346 #define RX_FREE_BUFFERS 64
 347 #define RX_LOW_WATERMARK 8
 348
 349 #define SUP_RATE_11A_MAX_NUM_CHANNELS  8
 350 #define SUP_RATE_11B_MAX_NUM_CHANNELS  4
 351 #define SUP_RATE_11G_MAX_NUM_CHANNELS  12
 352
 353 /**
 354  * struct iwl_rx_queue - Rx queue
 355  * @processed: Internal index to last handled Rx packet
 356  * @read: Shared index to newest available Rx buffer
 357  * @write: Shared index to oldest written Rx packet
 358  * @free_count: Number of pre-allocated buffers in rx_free
 359  * @rx_free: list of free SKBs for use
 360  * @rx_used: List of Rx buffers with no SKB
 361  * @need_update: flag to indicate we need to update read/write index
 362  *
 363  * NOTE:  rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers
 364  */
 365 struct iwl_rx_queue {
 366         __le32 *bd;
 367         dma_addr_t dma_addr;
 368         struct iwl_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
 369         struct iwl_rx_mem_buffer *queue[RX_QUEUE_SIZE];
 370         u32 processed;
 371         u32 read;
 372         u32 write;
 373         u32 free_count;
 374         struct list_head rx_free;
 375         struct list_head rx_used;
 376         int need_update;
 377         spinlock_t lock;
 378 };
 379
 380 #define IWL_SUPPORTED_RATES_IE_LEN         8
 381
 382 #define SCAN_INTERVAL 100
 383
 384 #define MAX_A_CHANNELS  252
 385 #define MIN_A_CHANNELS  7
 386
 387 #define MAX_B_CHANNELS  14
 388 #define MIN_B_CHANNELS  1
 389
 390 #define MAX_TID_COUNT        9
 391
 392 #define IWL_INVALID_RATE     0xFF
 393 #define IWL_INVALID_VALUE    -1
 394
 395 /**
 396  * struct iwl_ht_agg -- aggregation status while waiting for block-ack
 397  * @txq_id: Tx queue used for Tx attempt
 398  * @frame_count: # frames attempted by Tx command
 399  * @wait_for_ba: Expect block-ack before next Tx reply
 400  * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
 401  * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
 402  * @bitmap1: High order, one bit for each frame pending ACK in Tx window
 403  * @rate_n_flags: Rate at which Tx was attempted
 404  *
 405  * If REPLY_TX indicates that aggregation was attempted, driver must wait
 406  * for block ack (REPLY_COMPRESSED_BA).  This struct stores tx reply info
 407  * until block ack arrives.
 408  */
 409 struct iwl_ht_agg {
 410         u16 txq_id;
 411         u16 frame_count;
 412         u16 wait_for_ba;
 413         u16 start_idx;
 414         u64 bitmap;
 415         u32 rate_n_flags;
 416 #define IWL_AGG_OFF 0
 417 #define IWL_AGG_ON 1
 418 #define IWL_EMPTYING_HW_QUEUE_ADDBA 2
 419 #define IWL_EMPTYING_HW_QUEUE_DELBA 3
 420         u8 state;
 421 };
 422
 423
 424 struct iwl_tid_data {
 425         u16 seq_number;
 426         u16 tfds_in_queue;
 427         struct iwl_ht_agg agg;
 428 };
 429
 430 struct iwl_hw_key {
 431         enum ieee80211_key_alg alg;
 432         int keylen;
 433         u8 keyidx;
 434         u8 key[32];
 435 };
 436
 437 union iwl4965_ht_rate_supp {
 438         u16 rates;
 439         struct {
 440                 u8 siso_rate;
 441                 u8 mimo_rate;
 442         };
 443 };
 444
 445 #define CFG_HT_RX_AMPDU_FACTOR_DEF  (0x3)
 446 #define CFG_HT_MPDU_DENSITY_2USEC   (0x5)
 447 #define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_2USEC
 448
 449 struct iwl_ht_info {
 450         /* self configuration data */
 451         u8 is_ht;
 452         u8 supported_chan_width;
 453         u16 tx_mimo_ps_mode;
 454         u8 is_green_field;
 455         u8 sgf;                 /* HT_SHORT_GI_* short guard interval */
 456         u8 max_amsdu_size;
 457         u8 ampdu_factor;
 458         u8 mpdu_density;
 459         u8 supp_mcs_set[16];
 460         /* BSS related data */
 461         u8 control_channel;
 462         u8 extension_chan_offset;
 463         u8 tx_chan_width;
 464         u8 ht_protection;
 465         u8 non_GF_STA_present;
 466 };
 467
 468 union iwl4965_qos_capabity {
 469         struct {
 470                 u8 edca_count:4;        /* bit 0-3 */
 471                 u8 q_ack:1;             /* bit 4 */
 472                 u8 queue_request:1;     /* bit 5 */
 473                 u8 txop_request:1;      /* bit 6 */
 474                 u8 reserved:1;          /* bit 7 */
 475         } q_AP;
 476         struct {
 477                 u8 acvo_APSD:1;         /* bit 0 */
 478                 u8 acvi_APSD:1;         /* bit 1 */
 479                 u8 ac_bk_APSD:1;        /* bit 2 */
 480                 u8 ac_be_APSD:1;        /* bit 3 */
 481                 u8 q_ack:1;             /* bit 4 */
 482                 u8 max_len:2;           /* bit 5-6 */
 483                 u8 more_data_ack:1;     /* bit 7 */
 484         } q_STA;
 485         u8 val;
 486 };
 487
 488 /* QoS structures */
 489 struct iwl4965_qos_info {
 490         int qos_enable;
 491         int qos_active;
 492         union iwl4965_qos_capabity qos_cap;
 493         struct iwl4965_qosparam_cmd def_qos_parm;
 494 };
 495
 496 #define STA_PS_STATUS_WAKE             0
 497 #define STA_PS_STATUS_SLEEP            1
 498
 499 struct iwl_station_entry {
 500         struct iwl_addsta_cmd sta;
 501         struct iwl_tid_data tid[MAX_TID_COUNT];
 502         u8 used;
 503         u8 ps_status;
 504         struct iwl_hw_key keyinfo;
 505 };
 506
 507 /* one for each uCode image (inst/data, boot/init/runtime) */
 508 struct fw_desc {
 509         void *v_addr;           /* access by driver */
 510         dma_addr_t p_addr;      /* access by card's busmaster DMA */
 511         u32 len;                /* bytes */
 512 };
 513
 514 /* uCode file layout */
 515 struct iwl4965_ucode {
 516         __le32 ver;             /* major/minor/subminor */
 517         __le32 inst_size;       /* bytes of runtime instructions */
 518         __le32 data_size;       /* bytes of runtime data */
 519         __le32 init_size;       /* bytes of initialization instructions */
 520         __le32 init_data_size;  /* bytes of initialization data */
 521         __le32 boot_size;       /* bytes of bootstrap instructions */
 522         u8 data[0];             /* data in same order as "size" elements */
 523 };
 524
 525 #define IWL_IBSS_MAC_HASH_SIZE 32
 526
 527 struct iwl4965_ibss_seq {
 528         u8 mac[ETH_ALEN];
 529         u16 seq_num;
 530         u16 frag_num;
 531         unsigned long packet_time;
 532         struct list_head list;
 533 };
 534
 535 struct iwl_sensitivity_ranges {
 536         u16 min_nrg_cck;
 537         u16 max_nrg_cck;
 538
 539         u16 nrg_th_cck;
 540         u16 nrg_th_ofdm;
 541
 542         u16 auto_corr_min_ofdm;
 543         u16 auto_corr_min_ofdm_mrc;
 544         u16 auto_corr_min_ofdm_x1;
 545         u16 auto_corr_min_ofdm_mrc_x1;
 546
 547         u16 auto_corr_max_ofdm;
 548         u16 auto_corr_max_ofdm_mrc;
 549         u16 auto_corr_max_ofdm_x1;
 550         u16 auto_corr_max_ofdm_mrc_x1;
 551
 552         u16 auto_corr_max_cck;
 553         u16 auto_corr_max_cck_mrc;
 554         u16 auto_corr_min_cck;
 555         u16 auto_corr_min_cck_mrc;
 556 };
 557
 558
 559 #define IWL_FAT_CHANNEL_52 BIT(IEEE80211_BAND_5GHZ)
 560
 561 /**
 562  * struct iwl_hw_params
 563  * @max_txq_num: Max # Tx queues supported
 564  * @tx/rx_chains_num: Number of TX/RX chains
 565  * @valid_tx/rx_ant: usable antennas
 566  * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
 567  * @max_rxq_log: Log-base-2 of max_rxq_size
 568  * @rx_buf_size: Rx buffer size
 569  * @max_stations:
 570  * @bcast_sta_id:
 571  * @fat_channel: is 40MHz width possible in band 2.4
 572  * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ)
 573  * @sw_crypto: 0 for hw, 1 for sw
 574  * @max_xxx_size: for ucode uses
 575  * @ct_kill_threshold: temperature threshold
 576  * @struct iwl_sensitivity_ranges: range of sensitivity values
 577  * @first_ampdu_q: first HW queue available for ampdu
 578  */
 579 struct iwl_hw_params {
 580         u16 max_txq_num;
 581         u8  tx_chains_num;
 582         u8  rx_chains_num;
 583         u8  valid_tx_ant;
 584         u8  valid_rx_ant;
 585         u16 max_rxq_size;
 586         u16 max_rxq_log;
 587         u32 rx_buf_size;
 588         u32 max_pkt_size;
 589         u8  max_stations;
 590         u8  bcast_sta_id;
 591         u8 fat_channel;
 592         u8 sw_crypto;
 593         u32 max_inst_size;
 594         u32 max_data_size;
 595         u32 max_bsm_size;
 596         u32 ct_kill_threshold; /* value in hw-dependent units */
 597         const struct iwl_sensitivity_ranges *sens;
 598         u8 first_ampdu_q;
 599 };
 600
 601 #define HT_SHORT_GI_20MHZ       (1 << 0)
 602 #define HT_SHORT_GI_40MHZ       (1 << 1)
 603
 604
 605 #define IWL_RX_HDR(x) ((struct iwl4965_rx_frame_hdr *)(\
 606                        x->u.rx_frame.stats.payload + \
 607                        x->u.rx_frame.stats.phy_count))
 608 #define IWL_RX_END(x) ((struct iwl4965_rx_frame_end *)(\
 609                        IWL_RX_HDR(x)->payload + \
 610                        le16_to_cpu(IWL_RX_HDR(x)->len)))
 611 #define IWL_RX_STATS(x) (&x->u.rx_frame.stats)
 612 #define IWL_RX_DATA(x) (IWL_RX_HDR(x)->payload)
 613
 614
 615 /******************************************************************************
 616  *
 617  * Functions implemented in iwl-base.c which are forward declared here
 618  * for use by iwl-*.c
 619  *
 620  *****************************************************************************/
 621 struct iwl_addsta_cmd;
 622 extern int iwl_send_add_sta(struct iwl_priv *priv,
 623                             struct iwl_addsta_cmd *sta, u8 flags);
 624 u8 iwl_add_station_flags(struct iwl_priv *priv, const u8 *addr, int is_ap,
 625                          u8 flags, struct ieee80211_ht_info *ht_info);
 626 extern int iwl4965_is_network_packet(struct iwl_priv *priv,
 627                                  struct ieee80211_hdr *header);
 628 extern int iwl4965_power_init_handle(struct iwl_priv *priv);
 629 extern void iwl4965_handle_data_packet_monitor(struct iwl_priv *priv,
 630                                            struct iwl_rx_mem_buffer *rxb,
 631                                            void *data, short len,
 632                                            struct ieee80211_rx_status *stats,
 633                                            u16 phy_flags);
 634 extern int iwl4965_is_duplicate_packet(struct iwl_priv *priv,
 635                                        struct ieee80211_hdr *header);
 636 extern int iwl4965_calc_db_from_ratio(int sig_ratio);
 637 extern int iwl4965_calc_sig_qual(int rssi_dbm, int noise_dbm);
 638 extern unsigned int iwl4965_fill_beacon_frame(struct iwl_priv *priv,
 639                                         struct ieee80211_hdr *hdr,
 640                                         const u8 *dest, int left);
 641 extern void iwl4965_update_chain_flags(struct iwl_priv *priv);
 642 int iwl4965_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src);
 643
 644 int iwl4965_init_geos(struct iwl_priv *priv);
 645 void iwl4965_free_geos(struct iwl_priv *priv);
 646
 647 extern const u8 iwl_bcast_addr[ETH_ALEN];
 648 int iwl4965_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
 649
 650 /*
 651  * Currently used by iwl-3945-rs... look at restructuring so that it doesn't
 652  * call this... todo... fix that.
 653 */
 654 extern u8 iwl4965_sync_station(struct iwl_priv *priv, int sta_id,
 655                            u16 tx_rate, u8 flags);
 656
 657 /******************************************************************************
 658  *
 659  * Functions implemented in iwl-[34]*.c which are forward declared here
 660  * for use by iwl-base.c
 661  *
 662  * NOTE:  The implementation of these functions are hardware specific
 663  * which is why they are in the hardware specific files (vs. iwl-base.c)
 664  *
 665  * Naming convention --
 666  * iwl4965_         <-- Its part of iwlwifi (should be changed to iwl4965_)
 667  * iwl4965_hw_      <-- Hardware specific (implemented in iwl-XXXX.c by all HW)
 668  * iwlXXXX_     <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
 669  * iwl4965_bg_      <-- Called from work queue context
 670  * iwl4965_mac_     <-- mac80211 callback
 671  *
 672  ****************************************************************************/
 673 extern void iwl4965_hw_setup_deferred_work(struct iwl_priv *priv);
 674 extern void iwl4965_hw_cancel_deferred_work(struct iwl_priv *priv);
 675 extern int iwl4965_hw_set_hw_params(struct iwl_priv *priv);
 676 extern int iwl_rxq_stop(struct iwl_priv *priv);
 677 extern void iwl_txq_ctx_stop(struct iwl_priv *priv);
 678 extern int iwl4965_hw_get_temperature(struct iwl_priv *priv);
 679 extern unsigned int iwl4965_hw_get_beacon_cmd(struct iwl_priv *priv,
 680                                  struct iwl_frame *frame, u8 rate);
 681 extern void iwl4965_hw_build_tx_cmd_rate(struct iwl_priv *priv,
 682                                      struct iwl_cmd *cmd,
 683                                      struct ieee80211_tx_info *info,
 684                                      struct ieee80211_hdr *hdr,
 685                                      int sta_id, int tx_id);
 686 extern void iwl4965_hw_rx_statistics(struct iwl_priv *priv,
 687                                  struct iwl_rx_mem_buffer *rxb);
 688 extern void iwl4965_disable_events(struct iwl_priv *priv);
 689 extern int iwl4965_get_temperature(const struct iwl_priv *priv);
 690 extern void iwl4965_rx_reply_rx(struct iwl_priv *priv,
 691                                 struct iwl_rx_mem_buffer *rxb);
 692
 693 /**
 694  * iwl_find_station - Find station id for a given BSSID
 695  * @bssid: MAC address of station ID to find
 696  *
 697  * NOTE:  This should not be hardware specific but the code has
 698  * not yet been merged into a single common layer for managing the
 699  * station tables.
 700  */
 701 extern u8 iwl_find_station(struct iwl_priv *priv, const u8 *bssid);
 702
 703 extern int iwl4965_hw_channel_switch(struct iwl_priv *priv, u16 channel);
 704 extern int iwl_queue_space(const struct iwl_queue *q);
 705 static inline int iwl_queue_used(const struct iwl_queue *q, int i)
 706 {
 707         return q->write_ptr > q->read_ptr ?
 708                 (i >= q->read_ptr && i < q->write_ptr) :
 709                 !(i < q->read_ptr && i >= q->write_ptr);
 710 }
 711
 712
 713 static inline u8 get_cmd_index(struct iwl_queue *q, u32 index, int is_huge)
 714 {
 715         /* This is for scan command, the big buffer at end of command array */
 716         if (is_huge)
 717                 return q->n_window;     /* must be power of 2 */
 718
 719         /* Otherwise, use normal size buffers */
 720         return index & (q->n_window - 1);
 721 }
 722
 723
 724 struct iwl_priv;
 725
 726 extern int iwl4965_radio_kill_sw(struct iwl_priv *priv, int disable_radio);
 727 /*
 728  * Forward declare iwl-4965.c functions for iwl-base.c
 729  */
 730 extern int iwl4965_tx_queue_update_wr_ptr(struct iwl_priv *priv,
 731                                           struct iwl_tx_queue *txq,
 732                                           u16 byte_cnt);
 733 extern int iwl4965_alive_notify(struct iwl_priv *priv);
 734 extern void iwl4965_update_rate_scaling(struct iwl_priv *priv, u8 mode);
 735 extern void iwl4965_rf_kill_ct_config(struct iwl_priv *priv);
 736
 737 extern void iwl4965_init_ht_hw_capab(const struct iwl_priv *priv,
 738                                 struct ieee80211_ht_info *ht_info,
 739                                 enum ieee80211_band band);
 740 int iwl4965_mac_ampdu_action(struct ieee80211_hw *hw,
 741                                     enum ieee80211_ampdu_mlme_action action,
 742                                     const u8 *addr, u16 tid, u16 *ssn);
 743 int iwl4965_check_empty_hw_queue(struct iwl_priv *priv, int sta_id,
 744                                         u8 tid, int txq_id);
 745
 746 /* Structures, enum, and defines specific to the 4965 */
 747
 748 #define IWL_KW_SIZE 0x1000      /*4k */
 749
 750 struct iwl_kw {
 751         dma_addr_t dma_addr;
 752         void *v_addr;
 753         size_t size;
 754 };
 755
 756 #define IWL_CHANNEL_WIDTH_20MHZ   0
 757 #define IWL_CHANNEL_WIDTH_40MHZ   1
 758
 759 #define IWL_MIMO_PS_STATIC        0
 760 #define IWL_MIMO_PS_NONE          3
 761 #define IWL_MIMO_PS_DYNAMIC       1
 762 #define IWL_MIMO_PS_INVALID       2
 763
 764 #define IWL_OPERATION_MODE_AUTO     0
 765 #define IWL_OPERATION_MODE_HT_ONLY  1
 766 #define IWL_OPERATION_MODE_MIXED    2
 767 #define IWL_OPERATION_MODE_20MHZ    3
 768
 769 #define IWL_TX_CRC_SIZE 4
 770 #define IWL_TX_DELIMITER_SIZE 4
 771
 772 #define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
 773
 774 struct iwl4965_lq_mngr {
 775         spinlock_t lock;
 776         s32 max_window_size;
 777         s32 *expected_tpt;
 778         u8 *next_higher_rate;
 779         u8 *next_lower_rate;
 780         unsigned long stamp;
 781         unsigned long stamp_last;
 782         u32 flush_time;
 783         u32 tx_packets;
 784         u8 lq_ready;
 785 };
 786
 787 /* Sensitivity and chain noise calibration */
 788 #define INTERFERENCE_DATA_AVAILABLE     __constant_cpu_to_le32(1)
 789 #define INITIALIZATION_VALUE            0xFFFF
 790 #define CAL_NUM_OF_BEACONS              20
 791 #define MAXIMUM_ALLOWED_PATHLOSS        15
 792
 793 #define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
 794
 795 #define MAX_FA_OFDM  50
 796 #define MIN_FA_OFDM  5
 797 #define MAX_FA_CCK   50
 798 #define MIN_FA_CCK   5
 799
 800 #define AUTO_CORR_STEP_OFDM       1
 801
 802 #define AUTO_CORR_STEP_CCK     3
 803 #define AUTO_CORR_MAX_TH_CCK   160
 804
 805 #define NRG_DIFF               2
 806 #define NRG_STEP_CCK           2
 807 #define NRG_MARGIN             8
 808 #define MAX_NUMBER_CCK_NO_FA 100
 809
 810 #define AUTO_CORR_CCK_MIN_VAL_DEF    (125)
 811
 812 #define CHAIN_A             0
 813 #define CHAIN_B             1
 814 #define CHAIN_C             2
 815 #define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
 816 #define ALL_BAND_FILTER                 0xFF00
 817 #define IN_BAND_FILTER                  0xFF
 818 #define MIN_AVERAGE_NOISE_MAX_VALUE     0xFFFFFFFF
 819
 820 #define NRG_NUM_PREV_STAT_L     20
 821 #define NUM_RX_CHAINS           3
 822
 823 enum iwl4965_false_alarm_state {
 824         IWL_FA_TOO_MANY = 0,
 825         IWL_FA_TOO_FEW = 1,
 826         IWL_FA_GOOD_RANGE = 2,
 827 };
 828
 829 enum iwl4965_chain_noise_state {
 830         IWL_CHAIN_NOISE_ALIVE = 0,  /* must be 0 */
 831         IWL_CHAIN_NOISE_ACCUMULATE = 1,
 832         IWL_CHAIN_NOISE_CALIBRATED = 2,
 833 };
 834
 835 enum iwl4965_calib_enabled_state {
 836         IWL_CALIB_DISABLED = 0,  /* must be 0 */
 837         IWL_CALIB_ENABLED = 1,
 838 };
 839
 840 struct statistics_general_data {
 841         u32 beacon_silence_rssi_a;
 842         u32 beacon_silence_rssi_b;
 843         u32 beacon_silence_rssi_c;
 844         u32 beacon_energy_a;
 845         u32 beacon_energy_b;
 846         u32 beacon_energy_c;
 847 };
 848
 849 struct iwl_calib_results {
 850         void *tx_iq_res;
 851         void *tx_iq_perd_res;
 852         void *lo_res;
 853         u32 tx_iq_res_len;
 854         u32 tx_iq_perd_res_len;
 855         u32 lo_res_len;
 856 };
 857
 858 enum ucode_type {
 859         UCODE_NONE = 0,
 860         UCODE_INIT,
 861         UCODE_RT
 862 };
 863
 864 /* Sensitivity calib data */
 865 struct iwl_sensitivity_data {
 866         u32 auto_corr_ofdm;
 867         u32 auto_corr_ofdm_mrc;
 868         u32 auto_corr_ofdm_x1;
 869         u32 auto_corr_ofdm_mrc_x1;
 870         u32 auto_corr_cck;
 871         u32 auto_corr_cck_mrc;
 872
 873         u32 last_bad_plcp_cnt_ofdm;
 874         u32 last_fa_cnt_ofdm;
 875         u32 last_bad_plcp_cnt_cck;
 876         u32 last_fa_cnt_cck;
 877
 878         u32 nrg_curr_state;
 879         u32 nrg_prev_state;
 880         u32 nrg_value[10];
 881         u8  nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
 882         u32 nrg_silence_ref;
 883         u32 nrg_energy_idx;
 884         u32 nrg_silence_idx;
 885         u32 nrg_th_cck;
 886         s32 nrg_auto_corr_silence_diff;
 887         u32 num_in_cck_no_fa;
 888         u32 nrg_th_ofdm;
 889 };
 890
 891 /* Chain noise (differential Rx gain) calib data */
 892 struct iwl_chain_noise_data {
 893         u8 state;
 894         u16 beacon_count;
 895         u32 chain_noise_a;
 896         u32 chain_noise_b;
 897         u32 chain_noise_c;
 898         u32 chain_signal_a;
 899         u32 chain_signal_b;
 900         u32 chain_signal_c;
 901         u8 disconn_array[NUM_RX_CHAINS];
 902         u8 delta_gain_code[NUM_RX_CHAINS];
 903         u8 radio_write;
 904 };
 905
 906 #define EEPROM_SEM_TIMEOUT 10           /* milliseconds */
 907 #define EEPROM_SEM_RETRY_LIMIT 1000     /* number of attempts (not time) */
 908
 909
 910 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
 911
 912 enum {
 913         MEASUREMENT_READY = (1 << 0),
 914         MEASUREMENT_ACTIVE = (1 << 1),
 915 };
 916
 917 #endif
 918
 919 #define IWL_MAX_NUM_QUEUES      20 /* FIXME: do dynamic allocation */
 920
 921 struct iwl_priv {
 922
 923         /* ieee device used by generic ieee processing code */
 924         struct ieee80211_hw *hw;
 925         struct ieee80211_channel *ieee_channels;
 926         struct ieee80211_rate *ieee_rates;
 927         struct iwl_cfg *cfg;
 928
 929         /* temporary frame storage list */
 930         struct list_head free_frames;
 931         int frames_count;
 932
 933         enum ieee80211_band band;
 934         int alloc_rxb_skb;
 935         bool add_radiotap;
 936
 937         void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
 938                                        struct iwl_rx_mem_buffer *rxb);
 939
 940         struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
 941
 942 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
 943         /* spectrum measurement report caching */
 944         struct iwl4965_spectrum_notification measure_report;
 945         u8 measurement_status;
 946 #endif
 947         /* ucode beacon time */
 948         u32 ucode_beacon_time;
 949
 950         /* we allocate array of iwl4965_channel_info for NIC's valid channels.
 951          *    Access via channel # using indirect index array */
 952         struct iwl_channel_info *channel_info;  /* channel info array */
 953         u8 channel_count;       /* # of channels */
 954
 955         /* each calibration channel group in the EEPROM has a derived
 956          * clip setting for each rate. */
 957         const struct iwl4965_clip_group clip_groups[5];
 958
 959         /* thermal calibration */
 960         s32 temperature;        /* degrees Kelvin */
 961         s32 last_temperature;
 962
 963         /* init calibration results */
 964         struct iwl_calib_results calib_results;
 965
 966         /* Scan related variables */
 967         unsigned long last_scan_jiffies;
 968         unsigned long next_scan_jiffies;
 969         unsigned long scan_start;
 970         unsigned long scan_pass_start;
 971         unsigned long scan_start_tsf;
 972         int scan_bands;
 973         int one_direct_scan;
 974         u8 direct_ssid_len;
 975         u8 direct_ssid[IW_ESSID_MAX_SIZE];
 976         struct iwl_scan_cmd *scan;
 977
 978         /* spinlock */
 979         spinlock_t lock;        /* protect general shared data */
 980         spinlock_t hcmd_lock;   /* protect hcmd */
 981         struct mutex mutex;
 982
 983         /* basic pci-network driver stuff */
 984         struct pci_dev *pci_dev;
 985
 986         /* pci hardware address support */
 987         void __iomem *hw_base;
 988         u32  hw_rev;
 989         u32  hw_wa_rev;
 990         u8   rev_id;
 991
 992         /* uCode images, save to reload in case of failure */
 993         struct fw_desc ucode_code;      /* runtime inst */
 994         struct fw_desc ucode_data;      /* runtime data original */
 995         struct fw_desc ucode_data_backup;       /* runtime data save/restore */
 996         struct fw_desc ucode_init;      /* initialization inst */
 997         struct fw_desc ucode_init_data; /* initialization data */
 998         struct fw_desc ucode_boot;      /* bootstrap inst */
 999         enum ucode_type ucode_type;
1000         u8 ucode_write_complete;        /* the image write is complete */
1001
1002
1003         struct iwl4965_rxon_time_cmd rxon_timing;
1004
1005         /* We declare this const so it can only be
1006          * changed via explicit cast within the
1007          * routines that actually update the physical
1008          * hardware */
1009         const struct iwl_rxon_cmd active_rxon;
1010         struct iwl_rxon_cmd staging_rxon;
1011
1012         int error_recovering;
1013         struct iwl_rxon_cmd recovery_rxon;
1014
1015         /* 1st responses from initialize and runtime uCode images.
1016          * 4965's initialize alive response contains some calibration data. */
1017         struct iwl_init_alive_resp card_alive_init;
1018         struct iwl_alive_resp card_alive;
1019 #ifdef CONFIG_IWLWIFI_RFKILL
1020         struct iwl_rfkill_mngr rfkill_mngr;
1021 #endif
1022
1023 #ifdef CONFIG_IWLWIFI_LEDS
1024         struct iwl4965_led led[IWL_LED_TRG_MAX];
1025         unsigned long last_blink_time;
1026         u8 last_blink_rate;
1027         u8 allow_blinking;
1028         u64 led_tpt;
1029 #endif
1030
1031         u16 active_rate;
1032         u16 active_rate_basic;
1033
1034         u8 assoc_station_added;
1035         u8 use_ant_b_for_management_frame;      /* Tx antenna selection */
1036         u8 start_calib;
1037         struct iwl_sensitivity_data sensitivity_data;
1038         struct iwl_chain_noise_data chain_noise_data;
1039         __le16 sensitivity_tbl[HD_TABLE_SIZE];
1040
1041         struct iwl_ht_info current_ht_config;
1042         u8 last_phy_res[100];
1043
1044         /* Rate scaling data */
1045         struct iwl4965_lq_mngr lq_mngr;
1046
1047         /* Rate scaling data */
1048         s8 data_retry_limit;
1049         u8 retry_rate;
1050
1051         wait_queue_head_t wait_command_queue;
1052
1053         int activity_timer_active;
1054
1055         /* Rx and Tx DMA processing queues */
1056         struct iwl_rx_queue rxq;
1057         struct iwl_tx_queue txq[IWL_MAX_NUM_QUEUES];
1058         unsigned long txq_ctx_active_msk;
1059         struct iwl_kw kw;       /* keep warm address */
1060         u32 scd_base_addr;      /* scheduler sram base address */
1061
1062         unsigned long status;
1063
1064         int last_rx_rssi;       /* From Rx packet statisitics */
1065         int last_rx_noise;      /* From beacon statistics */
1066
1067         /* counts mgmt, ctl, and data packets */
1068         struct traffic_stats {
1069                 u32 cnt;
1070                 u64 bytes;
1071         } tx_stats[3], rx_stats[3];
1072
1073         struct iwl_power_mgr power_data;
1074
1075         struct iwl4965_notif_statistics statistics;
1076         unsigned long last_statistics_time;
1077
1078         /* context information */
1079         u8 essid[IW_ESSID_MAX_SIZE];
1080         u8 essid_len;
1081         u16 rates_mask;
1082
1083         u32 power_mode;
1084         u32 antenna;
1085         u8 bssid[ETH_ALEN];
1086         u16 rts_threshold;
1087         u8 mac_addr[ETH_ALEN];
1088
1089         /*station table variables */
1090         spinlock_t sta_lock;
1091         int num_stations;
1092         struct iwl_station_entry stations[IWL_STATION_COUNT];
1093         struct iwl_wep_key wep_keys[WEP_KEYS_MAX];
1094         u8 default_wep_key;
1095         u8 key_mapping_key;
1096         unsigned long ucode_key_table;
1097
1098         /* Indication if ieee80211_ops->open has been called */
1099         u8 is_open;
1100
1101         u8 mac80211_registered;
1102
1103         /* Rx'd packet timing information */
1104         u32 last_beacon_time;
1105         u64 last_tsf;
1106
1107         /* Duplicate packet detection */
1108         u16 last_seq_num;
1109         u16 last_frag_num;
1110         unsigned long last_packet_time;
1111
1112         /* Hash table for finding stations in IBSS network */
1113         struct list_head ibss_mac_hash[IWL_IBSS_MAC_HASH_SIZE];
1114
1115         /* eeprom */
1116         u8 *eeprom;
1117         struct iwl_eeprom_calib_info *calib_info;
1118
1119         enum ieee80211_if_types iw_mode;
1120
1121         struct sk_buff *ibss_beacon;
1122
1123         /* Last Rx'd beacon timestamp */
1124         u64 timestamp;
1125         u16 beacon_int;
1126         struct ieee80211_vif *vif;
1127
1128         struct iwl_hw_params hw_params;
1129         /* driver/uCode shared Tx Byte Counts and Rx status */
1130         void *shared_virt;
1131         int rb_closed_offset;
1132         /* Physical Pointer to Tx Byte Counts and Rx status */
1133         dma_addr_t shared_phys;
1134
1135         /* Current association information needed to configure the
1136          * hardware */
1137         u16 assoc_id;
1138         u16 assoc_capability;
1139         u8 ps_mode;
1140
1141         struct iwl4965_qos_info qos_data;
1142
1143         struct workqueue_struct *workqueue;
1144
1145         struct work_struct up;
1146         struct work_struct restart;
1147         struct work_struct calibrated_work;
1148         struct work_struct scan_completed;
1149         struct work_struct rx_replenish;
1150         struct work_struct rf_kill;
1151         struct work_struct abort_scan;
1152         struct work_struct update_link_led;
1153         struct work_struct auth_work;
1154         struct work_struct report_work;
1155         struct work_struct request_scan;
1156         struct work_struct beacon_update;
1157         struct work_struct set_monitor;
1158
1159         struct tasklet_struct irq_tasklet;
1160
1161         struct delayed_work init_alive_start;
1162         struct delayed_work alive_start;
1163         struct delayed_work scan_check;
1164         struct delayed_work post_associate;
1165         /* TX Power */
1166         s8 tx_power_user_lmt;
1167         s8 tx_power_channel_lmt;
1168
1169 #ifdef CONFIG_PM
1170         u32 pm_state[16];
1171 #endif
1172
1173 #ifdef CONFIG_IWLWIFI_DEBUG
1174         /* debugging info */
1175         u32 debug_level;
1176         u32 framecnt_to_us;
1177         atomic_t restrict_refcnt;
1178 #ifdef CONFIG_IWLWIFI_DEBUGFS
1179         /* debugfs */
1180         struct iwl_debugfs *dbgfs;
1181 #endif /* CONFIG_IWLWIFI_DEBUGFS */
1182 #endif /* CONFIG_IWLWIFI_DEBUG */
1183
1184         struct work_struct txpower_work;
1185         u32 disable_sens_cal;
1186         u32 disable_chain_noise_cal;
1187         u32 disable_tx_power_cal;
1188         struct work_struct run_time_calib_work;
1189         struct timer_list statistics_periodic;
1190 }; /*iwl_priv */
1191
1192 static inline void iwl_txq_ctx_activate(struct iwl_priv *priv, int txq_id)
1193 {
1194         set_bit(txq_id, &priv->txq_ctx_active_msk);
1195 }
1196
1197 static inline void iwl_txq_ctx_deactivate(struct iwl_priv *priv, int txq_id)
1198 {
1199         clear_bit(txq_id, &priv->txq_ctx_active_msk);
1200 }
1201
1202 #ifdef CONFIG_IWLWIF_DEBUG
1203 const char *iwl_get_tx_fail_reason(u32 status);
1204 #else
1205 static inline const char *iwl_get_tx_fail_reason(u32 status) { return ""; }
1206 #endif
1207
1208
1209 static inline int iwl_get_ra_sta_id(struct iwl_priv *priv,
1210                                     struct ieee80211_hdr *hdr)
1211 {
1212         if (priv->iw_mode == IEEE80211_IF_TYPE_STA) {
1213                 return IWL_AP_ID;
1214         } else {
1215                 u8 *da = ieee80211_get_DA(hdr);
1216                 return iwl_find_station(priv, da);
1217         }
1218 }
1219
1220 static inline struct ieee80211_hdr *iwl_tx_queue_get_hdr(struct iwl_priv *priv,
1221                                                          int txq_id, int idx)
1222 {
1223         if (priv->txq[txq_id].txb[idx].skb[0])
1224                 return (struct ieee80211_hdr *)priv->txq[txq_id].
1225                                 txb[idx].skb[0]->data;
1226         return NULL;
1227 }
1228
1229
1230 static inline int iwl_is_associated(struct iwl_priv *priv)
1231 {
1232         return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
1233 }
1234
1235 static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
1236 {
1237         if (ch_info == NULL)
1238                 return 0;
1239         return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
1240 }
1241
1242 static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
1243 {
1244         return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
1245 }
1246
1247 static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
1248 {
1249         return ch_info->band == IEEE80211_BAND_5GHZ;
1250 }
1251
1252 static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
1253 {
1254         return ch_info->band == IEEE80211_BAND_2GHZ;
1255 }
1256
1257 static inline int is_channel_passive(const struct iwl_channel_info *ch)
1258 {
1259         return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1260 }
1261
1262 static inline int is_channel_ibss(const struct iwl_channel_info *ch)
1263 {
1264         return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1265 }
1266
1267 #ifdef CONFIG_IWLWIFI_DEBUG
1268 static inline void iwl_print_hex_dump(struct iwl_priv *priv, int level,
1269                                       void *p, u32 len)
1270 {
1271         if (!(priv->debug_level & level))
1272                 return;
1273
1274         print_hex_dump(KERN_DEBUG, "iwl data: ", DUMP_PREFIX_OFFSET, 16, 1,
1275                         p, len, 1);
1276 }
1277 #else
1278 static inline void iwl_print_hex_dump(struct iwl_priv *priv, int level,
1279                                       void *p, u32 len)
1280 {
1281 }
1282 #endif
1283
1284 extern const struct iwl_channel_info *iwl_get_channel_info(
1285         const struct iwl_priv *priv, enum ieee80211_band band, u16 channel);
1286
1287 /* Requires full declaration of iwl_priv before including */
1288
1289 #endif                          /* __iwl4965_4965_h__ */