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

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2003 - 2009 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  *  Intel Linux Wireless <ilw@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_dev_h__
  33 #define __iwl_dev_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 #include "iwl-eeprom.h"
  40 #include "iwl-csr.h"
  41 #include "iwl-prph.h"
  42 #include "iwl-fh.h"
  43 #include "iwl-debug.h"
  44 #include "iwl-4965-hw.h"
  45 #include "iwl-3945-hw.h"
  46 #include "iwl-led.h"
  47 #include "iwl-power.h"
  48 #include "iwl-agn-rs.h"
  49
  50 /* configuration for the iwl4965 */
  51 extern struct iwl_cfg iwl4965_agn_cfg;
  52 extern struct iwl_cfg iwl5300_agn_cfg;
  53 extern struct iwl_cfg iwl5100_agn_cfg;
  54 extern struct iwl_cfg iwl5350_agn_cfg;
  55 extern struct iwl_cfg iwl5100_bg_cfg;
  56 extern struct iwl_cfg iwl5100_abg_cfg;
  57 extern struct iwl_cfg iwl5150_agn_cfg;
  58 extern struct iwl_cfg iwl6000i_2agn_cfg;
  59 extern struct iwl_cfg iwl6000i_2abg_cfg;
  60 extern struct iwl_cfg iwl6000i_2bg_cfg;
  61 extern struct iwl_cfg iwl6000_3agn_cfg;
  62 extern struct iwl_cfg iwl6050_2agn_cfg;
  63 extern struct iwl_cfg iwl6050_2abg_cfg;
  64 extern struct iwl_cfg iwl1000_bgn_cfg;
  65 extern struct iwl_cfg iwl1000_bg_cfg;
  66
  67 struct iwl_tx_queue;
  68
  69 /* shared structures from iwl-5000.c */
  70 extern struct iwl_mod_params iwl50_mod_params;
  71 extern struct iwl_ucode_ops iwl5000_ucode;
  72 extern struct iwl_lib_ops iwl5000_lib;
  73 extern struct iwl_hcmd_ops iwl5000_hcmd;
  74 extern struct iwl_hcmd_utils_ops iwl5000_hcmd_utils;
  75
  76 /* shared functions from iwl-5000.c */
  77 extern u16 iwl5000_get_hcmd_size(u8 cmd_id, u16 len);
  78 extern u16 iwl5000_build_addsta_hcmd(const struct iwl_addsta_cmd *cmd,
  79                                      u8 *data);
  80 extern void iwl5000_rts_tx_cmd_flag(struct ieee80211_tx_info *info,
  81                                     __le32 *tx_flags);
  82 extern int iwl5000_calc_rssi(struct iwl_priv *priv,
  83                              struct iwl_rx_phy_res *rx_resp);
  84 extern void iwl5000_nic_config(struct iwl_priv *priv);
  85 extern u16 iwl5000_eeprom_calib_version(struct iwl_priv *priv);
  86 extern const u8 *iwl5000_eeprom_query_addr(const struct iwl_priv *priv,
  87                                     size_t offset);
  88 extern void iwl5000_txq_update_byte_cnt_tbl(struct iwl_priv *priv,
  89                                             struct iwl_tx_queue *txq,
  90                                             u16 byte_cnt);
  91 extern void iwl5000_txq_inval_byte_cnt_tbl(struct iwl_priv *priv,
  92                                     struct iwl_tx_queue *txq);
  93 extern int iwl5000_load_ucode(struct iwl_priv *priv);
  94 extern void iwl5000_init_alive_start(struct iwl_priv *priv);
  95 extern int iwl5000_alive_notify(struct iwl_priv *priv);
  96 extern int iwl5000_hw_set_hw_params(struct iwl_priv *priv);
  97 extern int iwl5000_txq_agg_enable(struct iwl_priv *priv, int txq_id,
  98                            int tx_fifo, int sta_id, int tid, u16 ssn_idx);
  99 extern int iwl5000_txq_agg_disable(struct iwl_priv *priv, u16 txq_id,
 100                             u16 ssn_idx, u8 tx_fifo);
 101 extern void iwl5000_txq_set_sched(struct iwl_priv *priv, u32 mask);
 102 extern void iwl5000_setup_deferred_work(struct iwl_priv *priv);
 103 extern void iwl5000_rx_handler_setup(struct iwl_priv *priv);
 104 extern int iwl5000_hw_valid_rtc_data_addr(u32 addr);
 105 extern int iwl5000_send_tx_power(struct iwl_priv *priv);
 106 extern void iwl5000_temperature(struct iwl_priv *priv);
 107
 108 /* CT-KILL constants */
 109 #define CT_KILL_THRESHOLD_LEGACY   110 /* in Celsius */
 110 #define CT_KILL_THRESHOLD          114 /* in Celsius */
 111 #define CT_KILL_EXIT_THRESHOLD     95  /* in Celsius */
 112
 113 /* Default noise level to report when noise measurement is not available.
 114  *   This may be because we're:
 115  *   1)  Not associated (4965, no beacon statistics being sent to driver)
 116  *   2)  Scanning (noise measurement does not apply to associated channel)
 117  *   3)  Receiving CCK (3945 delivers noise info only for OFDM frames)
 118  * Use default noise value of -127 ... this is below the range of measurable
 119  *   Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
 120  *   Also, -127 works better than 0 when averaging frames with/without
 121  *   noise info (e.g. averaging might be done in app); measured dBm values are
 122  *   always negative ... using a negative value as the default keeps all
 123  *   averages within an s8's (used in some apps) range of negative values. */
 124 #define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
 125
 126 /*
 127  * RTS threshold here is total size [2347] minus 4 FCS bytes
 128  * Per spec:
 129  *   a value of 0 means RTS on all data/management packets
 130  *   a value > max MSDU size means no RTS
 131  * else RTS for data/management frames where MPDU is larger
 132  *   than RTS value.
 133  */
 134 #define DEFAULT_RTS_THRESHOLD     2347U
 135 #define MIN_RTS_THRESHOLD         0U
 136 #define MAX_RTS_THRESHOLD         2347U
 137 #define MAX_MSDU_SIZE             2304U
 138 #define MAX_MPDU_SIZE             2346U
 139 #define DEFAULT_BEACON_INTERVAL   100U
 140 #define DEFAULT_SHORT_RETRY_LIMIT 7U
 141 #define DEFAULT_LONG_RETRY_LIMIT  4U
 142
 143 struct iwl_rx_mem_buffer {
 144         dma_addr_t page_dma;
 145         struct page *page;
 146         struct list_head list;
 147 };
 148
 149 #define rxb_addr(r) page_address(r->page)
 150
 151 /* defined below */
 152 struct iwl_device_cmd;
 153
 154 struct iwl_cmd_meta {
 155         /* only for SYNC commands, iff the reply skb is wanted */
 156         struct iwl_host_cmd *source;
 157         /*
 158          * only for ASYNC commands
 159          * (which is somewhat stupid -- look at iwl-sta.c for instance
 160          * which duplicates a bunch of code because the callback isn't
 161          * invoked for SYNC commands, if it were and its result passed
 162          * through it would be simpler...)
 163          */
 164         void (*callback)(struct iwl_priv *priv,
 165                          struct iwl_device_cmd *cmd,
 166                          struct iwl_rx_packet *pkt);
 167
 168         /* The CMD_SIZE_HUGE flag bit indicates that the command
 169          * structure is stored at the end of the shared queue memory. */
 170         u32 flags;
 171
 172         DECLARE_PCI_UNMAP_ADDR(mapping)
 173         DECLARE_PCI_UNMAP_LEN(len)
 174 };
 175
 176 /*
 177  * Generic queue structure
 178  *
 179  * Contains common data for Rx and Tx queues
 180  */
 181 struct iwl_queue {
 182         int n_bd;              /* number of BDs in this queue */
 183         int write_ptr;       /* 1-st empty entry (index) host_w*/
 184         int read_ptr;         /* last used entry (index) host_r*/
 185         dma_addr_t dma_addr;   /* physical addr for BD's */
 186         int n_window;          /* safe queue window */
 187         u32 id;
 188         int low_mark;          /* low watermark, resume queue if free
 189                                 * space more than this */
 190         int high_mark;         /* high watermark, stop queue if free
 191                                 * space less than this */
 192 } __attribute__ ((packed));
 193
 194 /* One for each TFD */
 195 struct iwl_tx_info {
 196         struct sk_buff *skb[IWL_NUM_OF_TBS - 1];
 197 };
 198
 199 /**
 200  * struct iwl_tx_queue - Tx Queue for DMA
 201  * @q: generic Rx/Tx queue descriptor
 202  * @bd: base of circular buffer of TFDs
 203  * @cmd: array of command/TX buffer pointers
 204  * @meta: array of meta data for each command/tx buffer
 205  * @dma_addr_cmd: physical address of cmd/tx buffer array
 206  * @txb: array of per-TFD driver data
 207  * @need_update: indicates need to update read/write index
 208  * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
 209  *
 210  * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
 211  * descriptors) and required locking structures.
 212  */
 213 #define TFD_TX_CMD_SLOTS 256
 214 #define TFD_CMD_SLOTS 32
 215
 216 struct iwl_tx_queue {
 217         struct iwl_queue q;
 218         void *tfds;
 219         struct iwl_device_cmd **cmd;
 220         struct iwl_cmd_meta *meta;
 221         struct iwl_tx_info *txb;
 222         u8 need_update;
 223         u8 sched_retry;
 224         u8 active;
 225         u8 swq_id;
 226 };
 227
 228 #define IWL_NUM_SCAN_RATES         (2)
 229
 230 struct iwl4965_channel_tgd_info {
 231         u8 type;
 232         s8 max_power;
 233 };
 234
 235 struct iwl4965_channel_tgh_info {
 236         s64 last_radar_time;
 237 };
 238
 239 #define IWL4965_MAX_RATE (33)
 240
 241 struct iwl3945_clip_group {
 242         /* maximum power level to prevent clipping for each rate, derived by
 243          *   us from this band's saturation power in EEPROM */
 244         const s8 clip_powers[IWL_MAX_RATES];
 245 };
 246
 247 /* current Tx power values to use, one for each rate for each channel.
 248  * requested power is limited by:
 249  * -- regulatory EEPROM limits for this channel
 250  * -- hardware capabilities (clip-powers)
 251  * -- spectrum management
 252  * -- user preference (e.g. iwconfig)
 253  * when requested power is set, base power index must also be set. */
 254 struct iwl3945_channel_power_info {
 255         struct iwl3945_tx_power tpc;    /* actual radio and DSP gain settings */
 256         s8 power_table_index;   /* actual (compenst'd) index into gain table */
 257         s8 base_power_index;    /* gain index for power at factory temp. */
 258         s8 requested_power;     /* power (dBm) requested for this chnl/rate */
 259 };
 260
 261 /* current scan Tx power values to use, one for each scan rate for each
 262  * channel. */
 263 struct iwl3945_scan_power_info {
 264         struct iwl3945_tx_power tpc;    /* actual radio and DSP gain settings */
 265         s8 power_table_index;   /* actual (compenst'd) index into gain table */
 266         s8 requested_power;     /* scan pwr (dBm) requested for chnl/rate */
 267 };
 268
 269 /*
 270  * One for each channel, holds all channel setup data
 271  * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
 272  *     with one another!
 273  */
 274 struct iwl_channel_info {
 275         struct iwl4965_channel_tgd_info tgd;
 276         struct iwl4965_channel_tgh_info tgh;
 277         struct iwl_eeprom_channel eeprom;       /* EEPROM regulatory limit */
 278         struct iwl_eeprom_channel ht40_eeprom;  /* EEPROM regulatory limit for
 279                                                  * HT40 channel */
 280
 281         u8 channel;       /* channel number */
 282         u8 flags;         /* flags copied from EEPROM */
 283         s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
 284         s8 curr_txpow;    /* (dBm) regulatory/spectrum/user (not h/w) limit */
 285         s8 min_power;     /* always 0 */
 286         s8 scan_power;    /* (dBm) regul. eeprom, direct scans, any rate */
 287
 288         u8 group_index;   /* 0-4, maps channel to group1/2/3/4/5 */
 289         u8 band_index;    /* 0-4, maps channel to band1/2/3/4/5 */
 290         enum ieee80211_band band;
 291
 292         /* HT40 channel info */
 293         s8 ht40_max_power_avg;  /* (dBm) regul. eeprom, normal Tx, any rate */
 294         u8 ht40_flags;          /* flags copied from EEPROM */
 295         u8 ht40_extension_channel; /* HT_IE_EXT_CHANNEL_* */
 296
 297         /* Radio/DSP gain settings for each "normal" data Tx rate.
 298          * These include, in addition to RF and DSP gain, a few fields for
 299          *   remembering/modifying gain settings (indexes). */
 300         struct iwl3945_channel_power_info power_info[IWL4965_MAX_RATE];
 301
 302         /* Radio/DSP gain settings for each scan rate, for directed scans. */
 303         struct iwl3945_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES];
 304 };
 305
 306 #define IWL_TX_FIFO_AC0 0
 307 #define IWL_TX_FIFO_AC1 1
 308 #define IWL_TX_FIFO_AC2 2
 309 #define IWL_TX_FIFO_AC3 3
 310 #define IWL_TX_FIFO_HCCA_1      5
 311 #define IWL_TX_FIFO_HCCA_2      6
 312 #define IWL_TX_FIFO_NONE        7
 313
 314 /* Minimum number of queues. MAX_NUM is defined in hw specific files.
 315  * Set the minimum to accommodate the 4 standard TX queues, 1 command
 316  * queue, 2 (unused) HCCA queues, and 4 HT queues (one for each AC) */
 317 #define IWL_MIN_NUM_QUEUES      10
 318
 319 /*
 320  * Queue #4 is the command queue for 3945/4965/5x00/1000/6x00,
 321  * the driver maps it into the appropriate device FIFO for the
 322  * uCode.
 323  */
 324 #define IWL_CMD_QUEUE_NUM       4
 325
 326 /* Power management (not Tx power) structures */
 327
 328 enum iwl_pwr_src {
 329         IWL_PWR_SRC_VMAIN,
 330         IWL_PWR_SRC_VAUX,
 331 };
 332
 333 #define IEEE80211_DATA_LEN              2304
 334 #define IEEE80211_4ADDR_LEN             30
 335 #define IEEE80211_HLEN                  (IEEE80211_4ADDR_LEN)
 336 #define IEEE80211_FRAME_LEN             (IEEE80211_DATA_LEN + IEEE80211_HLEN)
 337
 338 struct iwl_frame {
 339         union {
 340                 struct ieee80211_hdr frame;
 341                 struct iwl_tx_beacon_cmd beacon;
 342                 u8 raw[IEEE80211_FRAME_LEN];
 343                 u8 cmd[360];
 344         } u;
 345         struct list_head list;
 346 };
 347
 348 #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
 349 #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
 350 #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
 351
 352 enum {
 353         CMD_SYNC = 0,
 354         CMD_SIZE_NORMAL = 0,
 355         CMD_NO_SKB = 0,
 356         CMD_SIZE_HUGE = (1 << 0),
 357         CMD_ASYNC = (1 << 1),
 358         CMD_WANT_SKB = (1 << 2),
 359 };
 360
 361 #define DEF_CMD_PAYLOAD_SIZE 320
 362
 363 /*
 364  * IWL_LINK_HDR_MAX should include ieee80211_hdr, radiotap header,
 365  * SNAP header and alignment. It should also be big enough for 802.11
 366  * control frames.
 367  */
 368 #define IWL_LINK_HDR_MAX 64
 369
 370 /**
 371  * struct iwl_device_cmd
 372  *
 373  * For allocation of the command and tx queues, this establishes the overall
 374  * size of the largest command we send to uCode, except for a scan command
 375  * (which is relatively huge; space is allocated separately).
 376  */
 377 struct iwl_device_cmd {
 378         struct iwl_cmd_header hdr;      /* uCode API */
 379         union {
 380                 u32 flags;
 381                 u8 val8;
 382                 u16 val16;
 383                 u32 val32;
 384                 struct iwl_tx_cmd tx;
 385                 struct iwl6000_channel_switch_cmd chswitch;
 386                 u8 payload[DEF_CMD_PAYLOAD_SIZE];
 387         } __attribute__ ((packed)) cmd;
 388 } __attribute__ ((packed));
 389
 390 #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_device_cmd))
 391
 392
 393 struct iwl_host_cmd {
 394         const void *data;
 395         unsigned long reply_page;
 396         void (*callback)(struct iwl_priv *priv,
 397                          struct iwl_device_cmd *cmd,
 398                          struct iwl_rx_packet *pkt);
 399         u32 flags;
 400         u16 len;
 401         u8 id;
 402 };
 403
 404 #define SUP_RATE_11A_MAX_NUM_CHANNELS  8
 405 #define SUP_RATE_11B_MAX_NUM_CHANNELS  4
 406 #define SUP_RATE_11G_MAX_NUM_CHANNELS  12
 407
 408 /**
 409  * struct iwl_rx_queue - Rx queue
 410  * @bd: driver's pointer to buffer of receive buffer descriptors (rbd)
 411  * @dma_addr: bus address of buffer of receive buffer descriptors (rbd)
 412  * @read: Shared index to newest available Rx buffer
 413  * @write: Shared index to oldest written Rx packet
 414  * @free_count: Number of pre-allocated buffers in rx_free
 415  * @rx_free: list of free SKBs for use
 416  * @rx_used: List of Rx buffers with no SKB
 417  * @need_update: flag to indicate we need to update read/write index
 418  * @rb_stts: driver's pointer to receive buffer status
 419  * @rb_stts_dma: bus address of receive buffer status
 420  *
 421  * NOTE:  rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers
 422  */
 423 struct iwl_rx_queue {
 424         __le32 *bd;
 425         dma_addr_t dma_addr;
 426         struct iwl_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
 427         struct iwl_rx_mem_buffer *queue[RX_QUEUE_SIZE];
 428         u32 read;
 429         u32 write;
 430         u32 free_count;
 431         u32 write_actual;
 432         struct list_head rx_free;
 433         struct list_head rx_used;
 434         int need_update;
 435         struct iwl_rb_status *rb_stts;
 436         dma_addr_t rb_stts_dma;
 437         spinlock_t lock;
 438 };
 439
 440 #define IWL_SUPPORTED_RATES_IE_LEN         8
 441
 442 #define MAX_TID_COUNT        9
 443
 444 #define IWL_INVALID_RATE     0xFF
 445 #define IWL_INVALID_VALUE    -1
 446
 447 /**
 448  * struct iwl_ht_agg -- aggregation status while waiting for block-ack
 449  * @txq_id: Tx queue used for Tx attempt
 450  * @frame_count: # frames attempted by Tx command
 451  * @wait_for_ba: Expect block-ack before next Tx reply
 452  * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
 453  * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
 454  * @bitmap1: High order, one bit for each frame pending ACK in Tx window
 455  * @rate_n_flags: Rate at which Tx was attempted
 456  *
 457  * If REPLY_TX indicates that aggregation was attempted, driver must wait
 458  * for block ack (REPLY_COMPRESSED_BA).  This struct stores tx reply info
 459  * until block ack arrives.
 460  */
 461 struct iwl_ht_agg {
 462         u16 txq_id;
 463         u16 frame_count;
 464         u16 wait_for_ba;
 465         u16 start_idx;
 466         u64 bitmap;
 467         u32 rate_n_flags;
 468 #define IWL_AGG_OFF 0
 469 #define IWL_AGG_ON 1
 470 #define IWL_EMPTYING_HW_QUEUE_ADDBA 2
 471 #define IWL_EMPTYING_HW_QUEUE_DELBA 3
 472         u8 state;
 473 };
 474
 475
 476 struct iwl_tid_data {
 477         u16 seq_number;
 478         u16 tfds_in_queue;
 479         struct iwl_ht_agg agg;
 480 };
 481
 482 struct iwl_hw_key {
 483         enum ieee80211_key_alg alg;
 484         int keylen;
 485         u8 keyidx;
 486         u8 key[32];
 487 };
 488
 489 union iwl_ht_rate_supp {
 490         u16 rates;
 491         struct {
 492                 u8 siso_rate;
 493                 u8 mimo_rate;
 494         };
 495 };
 496
 497 #define CFG_HT_RX_AMPDU_FACTOR_DEF  (0x3)
 498
 499 /*
 500  * Maximal MPDU density for TX aggregation
 501  * 4 - 2us density
 502  * 5 - 4us density
 503  * 6 - 8us density
 504  * 7 - 16us density
 505  */
 506 #define CFG_HT_MPDU_DENSITY_4USEC   (0x5)
 507 #define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_4USEC
 508
 509 struct iwl_ht_config {
 510         /* self configuration data */
 511         bool is_ht;
 512         bool is_40mhz;
 513         bool single_chain_sufficient;
 514         /* BSS related data */
 515         u8 extension_chan_offset;
 516         u8 ht_protection;
 517         u8 non_GF_STA_present;
 518 };
 519
 520 union iwl_qos_capabity {
 521         struct {
 522                 u8 edca_count:4;        /* bit 0-3 */
 523                 u8 q_ack:1;             /* bit 4 */
 524                 u8 queue_request:1;     /* bit 5 */
 525                 u8 txop_request:1;      /* bit 6 */
 526                 u8 reserved:1;          /* bit 7 */
 527         } q_AP;
 528         struct {
 529                 u8 acvo_APSD:1;         /* bit 0 */
 530                 u8 acvi_APSD:1;         /* bit 1 */
 531                 u8 ac_bk_APSD:1;        /* bit 2 */
 532                 u8 ac_be_APSD:1;        /* bit 3 */
 533                 u8 q_ack:1;             /* bit 4 */
 534                 u8 max_len:2;           /* bit 5-6 */
 535                 u8 more_data_ack:1;     /* bit 7 */
 536         } q_STA;
 537         u8 val;
 538 };
 539
 540 /* QoS structures */
 541 struct iwl_qos_info {
 542         int qos_active;
 543         union iwl_qos_capabity qos_cap;
 544         struct iwl_qosparam_cmd def_qos_parm;
 545 };
 546
 547
 548 struct iwl3945_station_entry {
 549         struct iwl3945_addsta_cmd sta;
 550         struct iwl_tid_data tid[MAX_TID_COUNT];
 551         u8 used;
 552         struct iwl_hw_key keyinfo;
 553 };
 554
 555 struct iwl_station_entry {
 556         struct iwl_addsta_cmd sta;
 557         struct iwl_tid_data tid[MAX_TID_COUNT];
 558         u8 used;
 559         struct iwl_hw_key keyinfo;
 560 };
 561
 562 /*
 563  * iwl_station_priv: Driver's private station information
 564  *
 565  * When mac80211 creates a station it reserves some space (hw->sta_data_size)
 566  * in the structure for use by driver. This structure is places in that
 567  * space.
 568  */
 569 struct iwl_station_priv {
 570         struct iwl_lq_sta lq_sta;
 571         atomic_t pending_frames;
 572         bool client;
 573         bool asleep;
 574 };
 575
 576 /* one for each uCode image (inst/data, boot/init/runtime) */
 577 struct fw_desc {
 578         void *v_addr;           /* access by driver */
 579         dma_addr_t p_addr;      /* access by card's busmaster DMA */
 580         u32 len;                /* bytes */
 581 };
 582
 583 /* uCode file layout */
 584 struct iwl_ucode_header {
 585         __le32 ver;     /* major/minor/API/serial */
 586         union {
 587                 struct {
 588                         __le32 inst_size;       /* bytes of runtime code */
 589                         __le32 data_size;       /* bytes of runtime data */
 590                         __le32 init_size;       /* bytes of init code */
 591                         __le32 init_data_size;  /* bytes of init data */
 592                         __le32 boot_size;       /* bytes of bootstrap code */
 593                         u8 data[0];             /* in same order as sizes */
 594                 } v1;
 595                 struct {
 596                         __le32 build;           /* build number */
 597                         __le32 inst_size;       /* bytes of runtime code */
 598                         __le32 data_size;       /* bytes of runtime data */
 599                         __le32 init_size;       /* bytes of init code */
 600                         __le32 init_data_size;  /* bytes of init data */
 601                         __le32 boot_size;       /* bytes of bootstrap code */
 602                         u8 data[0];             /* in same order as sizes */
 603                 } v2;
 604         } u;
 605 };
 606 #define UCODE_HEADER_SIZE(ver) ((ver) == 1 ? 24 : 28)
 607
 608 struct iwl4965_ibss_seq {
 609         u8 mac[ETH_ALEN];
 610         u16 seq_num;
 611         u16 frag_num;
 612         unsigned long packet_time;
 613         struct list_head list;
 614 };
 615
 616 struct iwl_sensitivity_ranges {
 617         u16 min_nrg_cck;
 618         u16 max_nrg_cck;
 619
 620         u16 nrg_th_cck;
 621         u16 nrg_th_ofdm;
 622
 623         u16 auto_corr_min_ofdm;
 624         u16 auto_corr_min_ofdm_mrc;
 625         u16 auto_corr_min_ofdm_x1;
 626         u16 auto_corr_min_ofdm_mrc_x1;
 627
 628         u16 auto_corr_max_ofdm;
 629         u16 auto_corr_max_ofdm_mrc;
 630         u16 auto_corr_max_ofdm_x1;
 631         u16 auto_corr_max_ofdm_mrc_x1;
 632
 633         u16 auto_corr_max_cck;
 634         u16 auto_corr_max_cck_mrc;
 635         u16 auto_corr_min_cck;
 636         u16 auto_corr_min_cck_mrc;
 637
 638         u16 barker_corr_th_min;
 639         u16 barker_corr_th_min_mrc;
 640         u16 nrg_th_cca;
 641 };
 642
 643
 644 #define KELVIN_TO_CELSIUS(x) ((x)-273)
 645 #define CELSIUS_TO_KELVIN(x) ((x)+273)
 646
 647
 648 /**
 649  * struct iwl_hw_params
 650  * @max_txq_num: Max # Tx queues supported
 651  * @dma_chnl_num: Number of Tx DMA/FIFO channels
 652  * @scd_bc_tbls_size: size of scheduler byte count tables
 653  * @tfd_size: TFD size
 654  * @tx/rx_chains_num: Number of TX/RX chains
 655  * @valid_tx/rx_ant: usable antennas
 656  * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
 657  * @max_rxq_log: Log-base-2 of max_rxq_size
 658  * @rx_page_order: Rx buffer page order
 659  * @rx_wrt_ptr_reg: FH{39}_RSCSR_CHNL0_WPTR
 660  * @max_stations:
 661  * @bcast_sta_id:
 662  * @ht40_channel: is 40MHz width possible in band 2.4
 663  * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ)
 664  * @sw_crypto: 0 for hw, 1 for sw
 665  * @max_xxx_size: for ucode uses
 666  * @ct_kill_threshold: temperature threshold
 667  * @calib_init_cfg: setup initial calibrations for the hw
 668  * @struct iwl_sensitivity_ranges: range of sensitivity values
 669  */
 670 struct iwl_hw_params {
 671         u8 max_txq_num;
 672         u8 dma_chnl_num;
 673         u16 scd_bc_tbls_size;
 674         u32 tfd_size;
 675         u8  tx_chains_num;
 676         u8  rx_chains_num;
 677         u8  valid_tx_ant;
 678         u8  valid_rx_ant;
 679         u16 max_rxq_size;
 680         u16 max_rxq_log;
 681         u32 rx_page_order;
 682         u32 rx_wrt_ptr_reg;
 683         u8  max_stations;
 684         u8  bcast_sta_id;
 685         u8  ht40_channel;
 686         u8  max_beacon_itrvl;   /* in 1024 ms */
 687         u32 max_inst_size;
 688         u32 max_data_size;
 689         u32 max_bsm_size;
 690         u32 ct_kill_threshold; /* value in hw-dependent units */
 691         u32 ct_kill_exit_threshold; /* value in hw-dependent units */
 692                                     /* for 1000, 6000 series and up */
 693         u32 calib_init_cfg;
 694         const struct iwl_sensitivity_ranges *sens;
 695 };
 696
 697
 698 /******************************************************************************
 699  *
 700  * Functions implemented in core module which are forward declared here
 701  * for use by iwl-[4-5].c
 702  *
 703  * NOTE:  The implementation of these functions are not hardware specific
 704  * which is why they are in the core module files.
 705  *
 706  * Naming convention --
 707  * iwl_         <-- Is part of iwlwifi
 708  * iwlXXXX_     <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
 709  * iwl4965_bg_      <-- Called from work queue context
 710  * iwl4965_mac_     <-- mac80211 callback
 711  *
 712  ****************************************************************************/
 713 extern void iwl_update_chain_flags(struct iwl_priv *priv);
 714 extern int iwl_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src);
 715 extern const u8 iwl_bcast_addr[ETH_ALEN];
 716 extern int iwl_rxq_stop(struct iwl_priv *priv);
 717 extern void iwl_txq_ctx_stop(struct iwl_priv *priv);
 718 extern int iwl_queue_space(const struct iwl_queue *q);
 719 static inline int iwl_queue_used(const struct iwl_queue *q, int i)
 720 {
 721         return q->write_ptr > q->read_ptr ?
 722                 (i >= q->read_ptr && i < q->write_ptr) :
 723                 !(i < q->read_ptr && i >= q->write_ptr);
 724 }
 725
 726
 727 static inline u8 get_cmd_index(struct iwl_queue *q, u32 index, int is_huge)
 728 {
 729         /*
 730          * This is for init calibration result and scan command which
 731          * required buffer > TFD_MAX_PAYLOAD_SIZE,
 732          * the big buffer at end of command array
 733          */
 734         if (is_huge)
 735                 return q->n_window;     /* must be power of 2 */
 736
 737         /* Otherwise, use normal size buffers */
 738         return index & (q->n_window - 1);
 739 }
 740
 741
 742 struct iwl_dma_ptr {
 743         dma_addr_t dma;
 744         void *addr;
 745         size_t size;
 746 };
 747
 748 #define IWL_OPERATION_MODE_AUTO     0
 749 #define IWL_OPERATION_MODE_HT_ONLY  1
 750 #define IWL_OPERATION_MODE_MIXED    2
 751 #define IWL_OPERATION_MODE_20MHZ    3
 752
 753 #define IWL_TX_CRC_SIZE 4
 754 #define IWL_TX_DELIMITER_SIZE 4
 755
 756 #define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
 757
 758 /* Sensitivity and chain noise calibration */
 759 #define INITIALIZATION_VALUE            0xFFFF
 760 #define IWL4965_CAL_NUM_BEACONS         20
 761 #define IWL_CAL_NUM_BEACONS             16
 762 #define MAXIMUM_ALLOWED_PATHLOSS        15
 763
 764 #define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
 765
 766 #define MAX_FA_OFDM  50
 767 #define MIN_FA_OFDM  5
 768 #define MAX_FA_CCK   50
 769 #define MIN_FA_CCK   5
 770
 771 #define AUTO_CORR_STEP_OFDM       1
 772
 773 #define AUTO_CORR_STEP_CCK     3
 774 #define AUTO_CORR_MAX_TH_CCK   160
 775
 776 #define NRG_DIFF               2
 777 #define NRG_STEP_CCK           2
 778 #define NRG_MARGIN             8
 779 #define MAX_NUMBER_CCK_NO_FA 100
 780
 781 #define AUTO_CORR_CCK_MIN_VAL_DEF    (125)
 782
 783 #define CHAIN_A             0
 784 #define CHAIN_B             1
 785 #define CHAIN_C             2
 786 #define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
 787 #define ALL_BAND_FILTER                 0xFF00
 788 #define IN_BAND_FILTER                  0xFF
 789 #define MIN_AVERAGE_NOISE_MAX_VALUE     0xFFFFFFFF
 790
 791 #define NRG_NUM_PREV_STAT_L     20
 792 #define NUM_RX_CHAINS           3
 793
 794 enum iwl4965_false_alarm_state {
 795         IWL_FA_TOO_MANY = 0,
 796         IWL_FA_TOO_FEW = 1,
 797         IWL_FA_GOOD_RANGE = 2,
 798 };
 799
 800 enum iwl4965_chain_noise_state {
 801         IWL_CHAIN_NOISE_ALIVE = 0,  /* must be 0 */
 802         IWL_CHAIN_NOISE_ACCUMULATE,
 803         IWL_CHAIN_NOISE_CALIBRATED,
 804         IWL_CHAIN_NOISE_DONE,
 805 };
 806
 807 enum iwl4965_calib_enabled_state {
 808         IWL_CALIB_DISABLED = 0,  /* must be 0 */
 809         IWL_CALIB_ENABLED = 1,
 810 };
 811
 812
 813 /*
 814  * enum iwl_calib
 815  * defines the order in which results of initial calibrations
 816  * should be sent to the runtime uCode
 817  */
 818 enum iwl_calib {
 819         IWL_CALIB_XTAL,
 820         IWL_CALIB_DC,
 821         IWL_CALIB_LO,
 822         IWL_CALIB_TX_IQ,
 823         IWL_CALIB_TX_IQ_PERD,
 824         IWL_CALIB_BASE_BAND,
 825         IWL_CALIB_MAX
 826 };
 827
 828 /* Opaque calibration results */
 829 struct iwl_calib_result {
 830         void *buf;
 831         size_t buf_len;
 832 };
 833
 834 enum ucode_type {
 835         UCODE_NONE = 0,
 836         UCODE_INIT,
 837         UCODE_RT
 838 };
 839
 840 /* Sensitivity calib data */
 841 struct iwl_sensitivity_data {
 842         u32 auto_corr_ofdm;
 843         u32 auto_corr_ofdm_mrc;
 844         u32 auto_corr_ofdm_x1;
 845         u32 auto_corr_ofdm_mrc_x1;
 846         u32 auto_corr_cck;
 847         u32 auto_corr_cck_mrc;
 848
 849         u32 last_bad_plcp_cnt_ofdm;
 850         u32 last_fa_cnt_ofdm;
 851         u32 last_bad_plcp_cnt_cck;
 852         u32 last_fa_cnt_cck;
 853
 854         u32 nrg_curr_state;
 855         u32 nrg_prev_state;
 856         u32 nrg_value[10];
 857         u8  nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
 858         u32 nrg_silence_ref;
 859         u32 nrg_energy_idx;
 860         u32 nrg_silence_idx;
 861         u32 nrg_th_cck;
 862         s32 nrg_auto_corr_silence_diff;
 863         u32 num_in_cck_no_fa;
 864         u32 nrg_th_ofdm;
 865
 866         u16 barker_corr_th_min;
 867         u16 barker_corr_th_min_mrc;
 868         u16 nrg_th_cca;
 869 };
 870
 871 /* Chain noise (differential Rx gain) calib data */
 872 struct iwl_chain_noise_data {
 873         u32 active_chains;
 874         u32 chain_noise_a;
 875         u32 chain_noise_b;
 876         u32 chain_noise_c;
 877         u32 chain_signal_a;
 878         u32 chain_signal_b;
 879         u32 chain_signal_c;
 880         u16 beacon_count;
 881         u8 disconn_array[NUM_RX_CHAINS];
 882         u8 delta_gain_code[NUM_RX_CHAINS];
 883         u8 radio_write;
 884         u8 state;
 885 };
 886
 887 #define EEPROM_SEM_TIMEOUT 10           /* milliseconds */
 888 #define EEPROM_SEM_RETRY_LIMIT 1000     /* number of attempts (not time) */
 889
 890 #define IWL_TRAFFIC_ENTRIES     (256)
 891 #define IWL_TRAFFIC_ENTRY_SIZE  (64)
 892
 893 enum {
 894         MEASUREMENT_READY = (1 << 0),
 895         MEASUREMENT_ACTIVE = (1 << 1),
 896 };
 897
 898 enum iwl_nvm_type {
 899         NVM_DEVICE_TYPE_EEPROM = 0,
 900         NVM_DEVICE_TYPE_OTP,
 901 };
 902
 903 /*
 904  * Two types of OTP memory access modes
 905  *   IWL_OTP_ACCESS_ABSOLUTE - absolute address mode,
 906  *                              based on physical memory addressing
 907  *   IWL_OTP_ACCESS_RELATIVE - relative address mode,
 908  *                             based on logical memory addressing
 909  */
 910 enum iwl_access_mode {
 911         IWL_OTP_ACCESS_ABSOLUTE,
 912         IWL_OTP_ACCESS_RELATIVE,
 913 };
 914
 915 /**
 916  * enum iwl_pa_type - Power Amplifier type
 917  * @IWL_PA_SYSTEM:  based on uCode configuration
 918  * @IWL_PA_INTERNAL: use Internal only
 919  */
 920 enum iwl_pa_type {
 921         IWL_PA_SYSTEM = 0,
 922         IWL_PA_INTERNAL = 1,
 923 };
 924
 925 /* interrupt statistics */
 926 struct isr_statistics {
 927         u32 hw;
 928         u32 sw;
 929         u32 sw_err;
 930         u32 sch;
 931         u32 alive;
 932         u32 rfkill;
 933         u32 ctkill;
 934         u32 wakeup;
 935         u32 rx;
 936         u32 rx_handlers[REPLY_MAX];
 937         u32 tx;
 938         u32 unhandled;
 939 };
 940
 941 #ifdef CONFIG_IWLWIFI_DEBUGFS
 942 /* management statistics */
 943 enum iwl_mgmt_stats {
 944         MANAGEMENT_ASSOC_REQ = 0,
 945         MANAGEMENT_ASSOC_RESP,
 946         MANAGEMENT_REASSOC_REQ,
 947         MANAGEMENT_REASSOC_RESP,
 948         MANAGEMENT_PROBE_REQ,
 949         MANAGEMENT_PROBE_RESP,
 950         MANAGEMENT_BEACON,
 951         MANAGEMENT_ATIM,
 952         MANAGEMENT_DISASSOC,
 953         MANAGEMENT_AUTH,
 954         MANAGEMENT_DEAUTH,
 955         MANAGEMENT_ACTION,
 956         MANAGEMENT_MAX,
 957 };
 958 /* control statistics */
 959 enum iwl_ctrl_stats {
 960         CONTROL_BACK_REQ =  0,
 961         CONTROL_BACK,
 962         CONTROL_PSPOLL,
 963         CONTROL_RTS,
 964         CONTROL_CTS,
 965         CONTROL_ACK,
 966         CONTROL_CFEND,
 967         CONTROL_CFENDACK,
 968         CONTROL_MAX,
 969 };
 970
 971 struct traffic_stats {
 972         u32 mgmt[MANAGEMENT_MAX];
 973         u32 ctrl[CONTROL_MAX];
 974         u32 data_cnt;
 975         u64 data_bytes;
 976 };
 977 #else
 978 struct traffic_stats {
 979         u64 data_bytes;
 980 };
 981 #endif
 982
 983 /*
 984  * iwl_switch_rxon: "channel switch" structure
 985  *
 986  * @ switch_in_progress: channel switch in progress
 987  * @ channel: new channel
 988  */
 989 struct iwl_switch_rxon {
 990         bool switch_in_progress;
 991         __le16 channel;
 992 };
 993
 994 struct iwl_priv {
 995
 996         /* ieee device used by generic ieee processing code */
 997         struct ieee80211_hw *hw;
 998         struct ieee80211_channel *ieee_channels;
 999         struct ieee80211_rate *ieee_rates;
1000         struct iwl_cfg *cfg;
1001
1002         /* temporary frame storage list */
1003         struct list_head free_frames;
1004         int frames_count;
1005
1006         enum ieee80211_band band;
1007         int alloc_rxb_page;
1008
1009         void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
1010                                        struct iwl_rx_mem_buffer *rxb);
1011
1012         struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
1013
1014 #if defined(CONFIG_IWLWIFI_SPECTRUM_MEASUREMENT) || defined(CONFIG_IWL3945_SPECTRUM_MEASUREMENT)
1015         /* spectrum measurement report caching */
1016         struct iwl_spectrum_notification measure_report;
1017         u8 measurement_status;
1018 #endif
1019         /* ucode beacon time */
1020         u32 ucode_beacon_time;
1021
1022         /* we allocate array of iwl4965_channel_info for NIC's valid channels.
1023          *    Access via channel # using indirect index array */
1024         struct iwl_channel_info *channel_info;  /* channel info array */
1025         u8 channel_count;       /* # of channels */
1026
1027         /* each calibration channel group in the EEPROM has a derived
1028          * clip setting for each rate. 3945 only.*/
1029         const struct iwl3945_clip_group clip39_groups[5];
1030
1031         /* thermal calibration */
1032         s32 temperature;        /* degrees Kelvin */
1033         s32 last_temperature;
1034
1035         /* init calibration results */
1036         struct iwl_calib_result calib_results[IWL_CALIB_MAX];
1037
1038         /* Scan related variables */
1039         unsigned long last_scan_jiffies;
1040         unsigned long next_scan_jiffies;
1041         unsigned long scan_start;
1042         unsigned long scan_pass_start;
1043         unsigned long scan_start_tsf;
1044         void *scan;
1045         int scan_bands;
1046         struct cfg80211_scan_request *scan_request;
1047         u8 scan_tx_ant[IEEE80211_NUM_BANDS];
1048         u8 mgmt_tx_ant;
1049
1050         /* spinlock */
1051         spinlock_t lock;        /* protect general shared data */
1052         spinlock_t hcmd_lock;   /* protect hcmd */
1053         spinlock_t reg_lock;    /* protect hw register access */
1054         struct mutex mutex;
1055
1056         /* basic pci-network driver stuff */
1057         struct pci_dev *pci_dev;
1058
1059         /* pci hardware address support */
1060         void __iomem *hw_base;
1061         u32  hw_rev;
1062         u32  hw_wa_rev;
1063         u8   rev_id;
1064
1065         /* uCode images, save to reload in case of failure */
1066         u32 ucode_ver;                  /* version of ucode, copy of
1067                                            iwl_ucode.ver */
1068         struct fw_desc ucode_code;      /* runtime inst */
1069         struct fw_desc ucode_data;      /* runtime data original */
1070         struct fw_desc ucode_data_backup;       /* runtime data save/restore */
1071         struct fw_desc ucode_init;      /* initialization inst */
1072         struct fw_desc ucode_init_data; /* initialization data */
1073         struct fw_desc ucode_boot;      /* bootstrap inst */
1074         enum ucode_type ucode_type;
1075         u8 ucode_write_complete;        /* the image write is complete */
1076
1077
1078         struct iwl_rxon_time_cmd rxon_timing;
1079
1080         /* We declare this const so it can only be
1081          * changed via explicit cast within the
1082          * routines that actually update the physical
1083          * hardware */
1084         const struct iwl_rxon_cmd active_rxon;
1085         struct iwl_rxon_cmd staging_rxon;
1086
1087         struct iwl_switch_rxon switch_rxon;
1088
1089         /* 1st responses from initialize and runtime uCode images.
1090          * 4965's initialize alive response contains some calibration data. */
1091         struct iwl_init_alive_resp card_alive_init;
1092         struct iwl_alive_resp card_alive;
1093
1094         unsigned long last_blink_time;
1095         u8 last_blink_rate;
1096         u8 allow_blinking;
1097         u64 led_tpt;
1098
1099         u16 active_rate;
1100         u16 active_rate_basic;
1101
1102         u8 assoc_station_added;
1103         u8 start_calib;
1104         struct iwl_sensitivity_data sensitivity_data;
1105         struct iwl_chain_noise_data chain_noise_data;
1106         __le16 sensitivity_tbl[HD_TABLE_SIZE];
1107
1108         struct iwl_ht_config current_ht_config;
1109         u8 last_phy_res[100];
1110
1111         /* Rate scaling data */
1112         u8 retry_rate;
1113
1114         wait_queue_head_t wait_command_queue;
1115
1116         int activity_timer_active;
1117
1118         /* Rx and Tx DMA processing queues */
1119         struct iwl_rx_queue rxq;
1120         struct iwl_tx_queue *txq;
1121         unsigned long txq_ctx_active_msk;
1122         struct iwl_dma_ptr  kw; /* keep warm address */
1123         struct iwl_dma_ptr  scd_bc_tbls;
1124
1125         u32 scd_base_addr;      /* scheduler sram base address */
1126
1127         unsigned long status;
1128
1129         int last_rx_rssi;       /* From Rx packet statistics */
1130         int last_rx_noise;      /* From beacon statistics */
1131
1132         /* counts mgmt, ctl, and data packets */
1133         struct traffic_stats tx_stats;
1134         struct traffic_stats rx_stats;
1135
1136         /* counts interrupts */
1137         struct isr_statistics isr_stats;
1138
1139         struct iwl_power_mgr power_data;
1140         struct iwl_tt_mgmt thermal_throttle;
1141
1142         struct iwl_notif_statistics statistics;
1143 #ifdef CONFIG_IWLWIFI_DEBUG
1144         struct iwl_notif_statistics accum_statistics;
1145 #endif
1146
1147         /* context information */
1148         u16 rates_mask;
1149
1150         u8 bssid[ETH_ALEN];
1151         u16 rts_threshold;
1152         u8 mac_addr[ETH_ALEN];
1153
1154         /*station table variables */
1155         spinlock_t sta_lock;
1156         int num_stations;
1157         struct iwl_station_entry stations[IWL_STATION_COUNT];
1158         struct iwl_wep_key wep_keys[WEP_KEYS_MAX];
1159         u8 default_wep_key;
1160         u8 key_mapping_key;
1161         unsigned long ucode_key_table;
1162
1163         /* queue refcounts */
1164 #define IWL_MAX_HW_QUEUES       32
1165         unsigned long queue_stopped[BITS_TO_LONGS(IWL_MAX_HW_QUEUES)];
1166         /* for each AC */
1167         atomic_t queue_stop_count[4];
1168
1169         /* Indication if ieee80211_ops->open has been called */
1170         u8 is_open;
1171
1172         u8 mac80211_registered;
1173
1174         /* Rx'd packet timing information */
1175         u32 last_beacon_time;
1176         u64 last_tsf;
1177
1178         /* eeprom */
1179         u8 *eeprom;
1180         int    nvm_device_type;
1181         struct iwl_eeprom_calib_info *calib_info;
1182
1183         enum nl80211_iftype iw_mode;
1184
1185         struct sk_buff *ibss_beacon;
1186
1187         /* Last Rx'd beacon timestamp */
1188         u64 timestamp;
1189         u16 beacon_int;
1190         struct ieee80211_vif *vif;
1191
1192         /*Added for 3945 */
1193         void *shared_virt;
1194         dma_addr_t shared_phys;
1195         /*End*/
1196         struct iwl_hw_params hw_params;
1197
1198         /* INT ICT Table */
1199         __le32 *ict_tbl;
1200         dma_addr_t ict_tbl_dma;
1201         dma_addr_t aligned_ict_tbl_dma;
1202         int ict_index;
1203         void *ict_tbl_vir;
1204         u32 inta;
1205         bool use_ict;
1206
1207         u32 inta_mask;
1208         /* Current association information needed to configure the
1209          * hardware */
1210         u16 assoc_id;
1211         u16 assoc_capability;
1212
1213         struct iwl_qos_info qos_data;
1214
1215         struct workqueue_struct *workqueue;
1216
1217         struct work_struct up;
1218         struct work_struct restart;
1219         struct work_struct calibrated_work;
1220         struct work_struct scan_completed;
1221         struct work_struct rx_replenish;
1222         struct work_struct abort_scan;
1223         struct work_struct update_link_led;
1224         struct work_struct auth_work;
1225         struct work_struct report_work;
1226         struct work_struct request_scan;
1227         struct work_struct beacon_update;
1228         struct work_struct tt_work;
1229         struct work_struct ct_enter;
1230         struct work_struct ct_exit;
1231
1232         struct tasklet_struct irq_tasklet;
1233
1234         struct delayed_work init_alive_start;
1235         struct delayed_work alive_start;
1236         struct delayed_work scan_check;
1237
1238         /*For 3945 only*/
1239         struct delayed_work thermal_periodic;
1240         struct delayed_work rfkill_poll;
1241
1242         /* TX Power */
1243         s8 tx_power_user_lmt;
1244         s8 tx_power_device_lmt;
1245         s8 tx_power_lmt_in_half_dbm; /* max tx power in half-dBm format */
1246
1247
1248 #ifdef CONFIG_IWLWIFI_DEBUG
1249         /* debugging info */
1250         u32 debug_level; /* per device debugging will override global
1251                             iwl_debug_level if set */
1252         u32 framecnt_to_us;
1253         atomic_t restrict_refcnt;
1254         bool disable_ht40;
1255 #ifdef CONFIG_IWLWIFI_DEBUGFS
1256         /* debugfs */
1257         u16 tx_traffic_idx;
1258         u16 rx_traffic_idx;
1259         u8 *tx_traffic;
1260         u8 *rx_traffic;
1261         struct iwl_debugfs *dbgfs;
1262 #endif /* CONFIG_IWLWIFI_DEBUGFS */
1263 #endif /* CONFIG_IWLWIFI_DEBUG */
1264
1265         struct work_struct txpower_work;
1266         u32 disable_sens_cal;
1267         u32 disable_chain_noise_cal;
1268         u32 disable_tx_power_cal;
1269         struct work_struct run_time_calib_work;
1270         struct timer_list statistics_periodic;
1271         bool hw_ready;
1272         /*For 3945*/
1273 #define IWL_DEFAULT_TX_POWER 0x0F
1274
1275         struct iwl3945_notif_statistics statistics_39;
1276
1277         u32 sta_supp_rates;
1278 }; /*iwl_priv */
1279
1280 static inline void iwl_txq_ctx_activate(struct iwl_priv *priv, int txq_id)
1281 {
1282         set_bit(txq_id, &priv->txq_ctx_active_msk);
1283 }
1284
1285 static inline void iwl_txq_ctx_deactivate(struct iwl_priv *priv, int txq_id)
1286 {
1287         clear_bit(txq_id, &priv->txq_ctx_active_msk);
1288 }
1289
1290 #ifdef CONFIG_IWLWIFI_DEBUG
1291 const char *iwl_get_tx_fail_reason(u32 status);
1292 /*
1293  * iwl_get_debug_level: Return active debug level for device
1294  *
1295  * Using sysfs it is possible to set per device debug level. This debug
1296  * level will be used if set, otherwise the global debug level which can be
1297  * set via module parameter is used.
1298  */
1299 static inline u32 iwl_get_debug_level(struct iwl_priv *priv)
1300 {
1301         if (priv->debug_level)
1302                 return priv->debug_level;
1303         else
1304                 return iwl_debug_level;
1305 }
1306 #else
1307 static inline const char *iwl_get_tx_fail_reason(u32 status) { return ""; }
1308
1309 static inline u32 iwl_get_debug_level(struct iwl_priv *priv)
1310 {
1311         return iwl_debug_level;
1312 }
1313 #endif
1314
1315
1316 static inline struct ieee80211_hdr *iwl_tx_queue_get_hdr(struct iwl_priv *priv,
1317                                                          int txq_id, int idx)
1318 {
1319         if (priv->txq[txq_id].txb[idx].skb[0])
1320                 return (struct ieee80211_hdr *)priv->txq[txq_id].
1321                                 txb[idx].skb[0]->data;
1322         return NULL;
1323 }
1324
1325
1326 static inline int iwl_is_associated(struct iwl_priv *priv)
1327 {
1328         return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
1329 }
1330
1331 static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
1332 {
1333         if (ch_info == NULL)
1334                 return 0;
1335         return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
1336 }
1337
1338 static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
1339 {
1340         return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
1341 }
1342
1343 static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
1344 {
1345         return ch_info->band == IEEE80211_BAND_5GHZ;
1346 }
1347
1348 static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
1349 {
1350         return ch_info->band == IEEE80211_BAND_2GHZ;
1351 }
1352
1353 static inline int is_channel_passive(const struct iwl_channel_info *ch)
1354 {
1355         return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1356 }
1357
1358 static inline int is_channel_ibss(const struct iwl_channel_info *ch)
1359 {
1360         return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1361 }
1362
1363 #endif                          /* __iwl_dev_h__ */