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

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2003 - 2007 Intel Corporation. All rights reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of version 2 of the GNU General Public License as
   7  * published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12  * more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along with
  15  * this program; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
  17  *
  18  * The full GNU General Public License is included in this distribution in the
  19  * file called LICENSE.
  20  *
  21  * Contact Information:
  22  * James P. Ketrenos <ipw2100-admin@linux.intel.com>
  23  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  24  *
  25  *****************************************************************************/
  26 /*
  27  * Please use this file (iwl-4965.h) for driver implementation definitions.
  28  * Please use iwl-4965-commands.h for uCode API definitions.
  29  * Please use iwl-4965-hw.h for hardware-related definitions.
  30  */
  31
  32 #ifndef __iwl_4965_h__
  33 #define __iwl_4965_h__
  34
  35 #include <linux/pci.h> /* for struct pci_device_id */
  36 #include <linux/kernel.h>
  37 #include <net/ieee80211_radiotap.h>
  38
  39 /* Hardware specific file defines the PCI IDs table for that hardware module */
  40 extern struct pci_device_id iwl4965_hw_card_ids[];
  41
  42 #define DRV_NAME        "iwl4965"
  43 #include "iwl-4965-hw.h"
  44 #include "iwl-prph.h"
  45 #include "iwl-4965-debug.h"
  46
  47 /* Default noise level to report when noise measurement is not available.
  48  *   This may be because we're:
  49  *   1)  Not associated (4965, no beacon statistics being sent to driver)
  50  *   2)  Scanning (noise measurement does not apply to associated channel)
  51  *   3)  Receiving CCK (3945 delivers noise info only for OFDM frames)
  52  * Use default noise value of -127 ... this is below the range of measurable
  53  *   Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
  54  *   Also, -127 works better than 0 when averaging frames with/without
  55  *   noise info (e.g. averaging might be done in app); measured dBm values are
  56  *   always negative ... using a negative value as the default keeps all
  57  *   averages within an s8's (used in some apps) range of negative values. */
  58 #define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
  59
  60 /* Module parameters accessible from iwl-*.c */
  61 extern int iwl4965_param_hwcrypto;
  62 extern int iwl4965_param_queues_num;
  63 extern int iwl4965_param_amsdu_size_8K;
  64
  65 enum iwl4965_antenna {
  66         IWL_ANTENNA_DIVERSITY,
  67         IWL_ANTENNA_MAIN,
  68         IWL_ANTENNA_AUX
  69 };
  70
  71 /*
  72  * RTS threshold here is total size [2347] minus 4 FCS bytes
  73  * Per spec:
  74  *   a value of 0 means RTS on all data/management packets
  75  *   a value > max MSDU size means no RTS
  76  * else RTS for data/management frames where MPDU is larger
  77  *   than RTS value.
  78  */
  79 #define DEFAULT_RTS_THRESHOLD     2347U
  80 #define MIN_RTS_THRESHOLD         0U
  81 #define MAX_RTS_THRESHOLD         2347U
  82 #define MAX_MSDU_SIZE             2304U
  83 #define MAX_MPDU_SIZE             2346U
  84 #define DEFAULT_BEACON_INTERVAL   100U
  85 #define DEFAULT_SHORT_RETRY_LIMIT 7U
  86 #define DEFAULT_LONG_RETRY_LIMIT  4U
  87
  88 struct iwl4965_rx_mem_buffer {
  89         dma_addr_t dma_addr;
  90         struct sk_buff *skb;
  91         struct list_head list;
  92 };
  93
  94 /*
  95  * Generic queue structure
  96  *
  97  * Contains common data for Rx and Tx queues
  98  */
  99 struct iwl4965_queue {
 100         int n_bd;              /* number of BDs in this queue */
 101         int write_ptr;       /* 1-st empty entry (index) host_w*/
 102         int read_ptr;         /* last used entry (index) host_r*/
 103         dma_addr_t dma_addr;   /* physical addr for BD's */
 104         int n_window;          /* safe queue window */
 105         u32 id;
 106         int low_mark;          /* low watermark, resume queue if free
 107                                 * space more than this */
 108         int high_mark;         /* high watermark, stop queue if free
 109                                 * space less than this */
 110 } __attribute__ ((packed));
 111
 112 #define MAX_NUM_OF_TBS          (20)
 113
 114 /* One for each TFD */
 115 struct iwl4965_tx_info {
 116         struct ieee80211_tx_status status;
 117         struct sk_buff *skb[MAX_NUM_OF_TBS];
 118 };
 119
 120 /**
 121  * struct iwl4965_tx_queue - Tx Queue for DMA
 122  * @q: generic Rx/Tx queue descriptor
 123  * @bd: base of circular buffer of TFDs
 124  * @cmd: array of command/Tx buffers
 125  * @dma_addr_cmd: physical address of cmd/tx buffer array
 126  * @txb: array of per-TFD driver data
 127  * @need_update: indicates need to update read/write index
 128  * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
 129  *
 130  * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
 131  * descriptors) and required locking structures.
 132  */
 133 struct iwl4965_tx_queue {
 134         struct iwl4965_queue q;
 135         struct iwl4965_tfd_frame *bd;
 136         struct iwl4965_cmd *cmd;
 137         dma_addr_t dma_addr_cmd;
 138         struct iwl4965_tx_info *txb;
 139         int need_update;
 140         int sched_retry;
 141         int active;
 142 };
 143
 144 #define IWL_NUM_SCAN_RATES         (2)
 145
 146 struct iwl4965_channel_tgd_info {
 147         u8 type;
 148         s8 max_power;
 149 };
 150
 151 struct iwl4965_channel_tgh_info {
 152         s64 last_radar_time;
 153 };
 154
 155 /* current Tx power values to use, one for each rate for each channel.
 156  * requested power is limited by:
 157  * -- regulatory EEPROM limits for this channel
 158  * -- hardware capabilities (clip-powers)
 159  * -- spectrum management
 160  * -- user preference (e.g. iwconfig)
 161  * when requested power is set, base power index must also be set. */
 162 struct iwl4965_channel_power_info {
 163         struct iwl4965_tx_power tpc;    /* actual radio and DSP gain settings */
 164         s8 power_table_index;   /* actual (compenst'd) index into gain table */
 165         s8 base_power_index;    /* gain index for power at factory temp. */
 166         s8 requested_power;     /* power (dBm) requested for this chnl/rate */
 167 };
 168
 169 /* current scan Tx power values to use, one for each scan rate for each
 170  * channel. */
 171 struct iwl4965_scan_power_info {
 172         struct iwl4965_tx_power tpc;    /* actual radio and DSP gain settings */
 173         s8 power_table_index;   /* actual (compenst'd) index into gain table */
 174         s8 requested_power;     /* scan pwr (dBm) requested for chnl/rate */
 175 };
 176
 177 /* For fat_extension_channel */
 178 enum {
 179         HT_IE_EXT_CHANNEL_NONE = 0,
 180         HT_IE_EXT_CHANNEL_ABOVE,
 181         HT_IE_EXT_CHANNEL_INVALID,
 182         HT_IE_EXT_CHANNEL_BELOW,
 183         HT_IE_EXT_CHANNEL_MAX
 184 };
 185
 186 /*
 187  * One for each channel, holds all channel setup data
 188  * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
 189  *     with one another!
 190  */
 191 #define IWL4965_MAX_RATE (33)
 192
 193 struct iwl4965_channel_info {
 194         struct iwl4965_channel_tgd_info tgd;
 195         struct iwl4965_channel_tgh_info tgh;
 196         struct iwl4965_eeprom_channel eeprom;     /* EEPROM regulatory limit */
 197         struct iwl4965_eeprom_channel fat_eeprom; /* EEPROM regulatory limit for
 198                                                    * FAT channel */
 199
 200         u8 channel;       /* channel number */
 201         u8 flags;         /* flags copied from EEPROM */
 202         s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
 203         s8 curr_txpow;    /* (dBm) regulatory/spectrum/user (not h/w) limit */
 204         s8 min_power;     /* always 0 */
 205         s8 scan_power;    /* (dBm) regul. eeprom, direct scans, any rate */
 206
 207         u8 group_index;   /* 0-4, maps channel to group1/2/3/4/5 */
 208         u8 band_index;    /* 0-4, maps channel to band1/2/3/4/5 */
 209         enum ieee80211_band band;
 210
 211         /* Radio/DSP gain settings for each "normal" data Tx rate.
 212          * These include, in addition to RF and DSP gain, a few fields for
 213          *   remembering/modifying gain settings (indexes). */
 214         struct iwl4965_channel_power_info power_info[IWL4965_MAX_RATE];
 215
 216         /* FAT channel info */
 217         s8 fat_max_power_avg;   /* (dBm) regul. eeprom, normal Tx, any rate */
 218         s8 fat_curr_txpow;      /* (dBm) regulatory/spectrum/user (not h/w) */
 219         s8 fat_min_power;       /* always 0 */
 220         s8 fat_scan_power;      /* (dBm) eeprom, direct scans, any rate */
 221         u8 fat_flags;           /* flags copied from EEPROM */
 222         u8 fat_extension_channel; /* HT_IE_EXT_CHANNEL_* */
 223
 224         /* Radio/DSP gain settings for each scan rate, for directed scans. */
 225         struct iwl4965_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES];
 226 };
 227
 228 struct iwl4965_clip_group {
 229         /* maximum power level to prevent clipping for each rate, derived by
 230          *   us from this band's saturation power in EEPROM */
 231         const s8 clip_powers[IWL_MAX_RATES];
 232 };
 233
 234 #include "iwl-4965-rs.h"
 235
 236 #define IWL_TX_FIFO_AC0 0
 237 #define IWL_TX_FIFO_AC1 1
 238 #define IWL_TX_FIFO_AC2 2
 239 #define IWL_TX_FIFO_AC3 3
 240 #define IWL_TX_FIFO_HCCA_1      5
 241 #define IWL_TX_FIFO_HCCA_2      6
 242 #define IWL_TX_FIFO_NONE        7
 243
 244 /* Minimum number of queues. MAX_NUM is defined in hw specific files */
 245 #define IWL_MIN_NUM_QUEUES      4
 246
 247 /* Power management (not Tx power) structures */
 248
 249 struct iwl4965_power_vec_entry {
 250         struct iwl4965_powertable_cmd cmd;
 251         u8 no_dtim;
 252 };
 253 #define IWL_POWER_RANGE_0  (0)
 254 #define IWL_POWER_RANGE_1  (1)
 255
 256 #define IWL_POWER_MODE_CAM      0x00    /* Continuously Aware Mode, always on */
 257 #define IWL_POWER_INDEX_3       0x03
 258 #define IWL_POWER_INDEX_5       0x05
 259 #define IWL_POWER_AC            0x06
 260 #define IWL_POWER_BATTERY       0x07
 261 #define IWL_POWER_LIMIT         0x07
 262 #define IWL_POWER_MASK          0x0F
 263 #define IWL_POWER_ENABLED       0x10
 264 #define IWL_POWER_LEVEL(x)      ((x) & IWL_POWER_MASK)
 265
 266 struct iwl4965_power_mgr {
 267         spinlock_t lock;
 268         struct iwl4965_power_vec_entry pwr_range_0[IWL_POWER_AC];
 269         struct iwl4965_power_vec_entry pwr_range_1[IWL_POWER_AC];
 270         u8 active_index;
 271         u32 dtim_val;
 272 };
 273
 274 #define IEEE80211_DATA_LEN              2304
 275 #define IEEE80211_4ADDR_LEN             30
 276 #define IEEE80211_HLEN                  (IEEE80211_4ADDR_LEN)
 277 #define IEEE80211_FRAME_LEN             (IEEE80211_DATA_LEN + IEEE80211_HLEN)
 278
 279 struct iwl4965_frame {
 280         union {
 281                 struct ieee80211_hdr frame;
 282                 struct iwl4965_tx_beacon_cmd beacon;
 283                 u8 raw[IEEE80211_FRAME_LEN];
 284                 u8 cmd[360];
 285         } u;
 286         struct list_head list;
 287 };
 288
 289 #define SEQ_TO_QUEUE(x)  ((x >> 8) & 0xbf)
 290 #define QUEUE_TO_SEQ(x)  ((x & 0xbf) << 8)
 291 #define SEQ_TO_INDEX(x) (x & 0xff)
 292 #define INDEX_TO_SEQ(x) (x & 0xff)
 293 #define SEQ_HUGE_FRAME  (0x4000)
 294 #define SEQ_RX_FRAME    __constant_cpu_to_le16(0x8000)
 295 #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
 296 #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
 297 #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
 298
 299 enum {
 300         /* CMD_SIZE_NORMAL = 0, */
 301         CMD_SIZE_HUGE = (1 << 0),
 302         /* CMD_SYNC = 0, */
 303         CMD_ASYNC = (1 << 1),
 304         /* CMD_NO_SKB = 0, */
 305         CMD_WANT_SKB = (1 << 2),
 306 };
 307
 308 struct iwl4965_cmd;
 309 struct iwl4965_priv;
 310
 311 struct iwl4965_cmd_meta {
 312         struct iwl4965_cmd_meta *source;
 313         union {
 314                 struct sk_buff *skb;
 315                 int (*callback)(struct iwl4965_priv *priv,
 316                                 struct iwl4965_cmd *cmd, struct sk_buff *skb);
 317         } __attribute__ ((packed)) u;
 318
 319         /* The CMD_SIZE_HUGE flag bit indicates that the command
 320          * structure is stored at the end of the shared queue memory. */
 321         u32 flags;
 322
 323 } __attribute__ ((packed));
 324
 325 /**
 326  * struct iwl4965_cmd
 327  *
 328  * For allocation of the command and tx queues, this establishes the overall
 329  * size of the largest command we send to uCode, except for a scan command
 330  * (which is relatively huge; space is allocated separately).
 331  */
 332 struct iwl4965_cmd {
 333         struct iwl4965_cmd_meta meta;   /* driver data */
 334         struct iwl4965_cmd_header hdr;  /* uCode API */
 335         union {
 336                 struct iwl4965_addsta_cmd addsta;
 337                 struct iwl4965_led_cmd led;
 338                 u32 flags;
 339                 u8 val8;
 340                 u16 val16;
 341                 u32 val32;
 342                 struct iwl4965_bt_cmd bt;
 343                 struct iwl4965_rxon_time_cmd rxon_time;
 344                 struct iwl4965_powertable_cmd powertable;
 345                 struct iwl4965_qosparam_cmd qosparam;
 346                 struct iwl4965_tx_cmd tx;
 347                 struct iwl4965_tx_beacon_cmd tx_beacon;
 348                 struct iwl4965_rxon_assoc_cmd rxon_assoc;
 349                 u8 *indirect;
 350                 u8 payload[360];
 351         } __attribute__ ((packed)) cmd;
 352 } __attribute__ ((packed));
 353
 354 struct iwl4965_host_cmd {
 355         u8 id;
 356         u16 len;
 357         struct iwl4965_cmd_meta meta;
 358         const void *data;
 359 };
 360
 361 #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl4965_cmd) - \
 362                               sizeof(struct iwl4965_cmd_meta))
 363
 364 /*
 365  * RX related structures and functions
 366  */
 367 #define RX_FREE_BUFFERS 64
 368 #define RX_LOW_WATERMARK 8
 369
 370 #define SUP_RATE_11A_MAX_NUM_CHANNELS  8
 371 #define SUP_RATE_11B_MAX_NUM_CHANNELS  4
 372 #define SUP_RATE_11G_MAX_NUM_CHANNELS  12
 373
 374 /**
 375  * struct iwl4965_rx_queue - Rx queue
 376  * @processed: Internal index to last handled Rx packet
 377  * @read: Shared index to newest available Rx buffer
 378  * @write: Shared index to oldest written Rx packet
 379  * @free_count: Number of pre-allocated buffers in rx_free
 380  * @rx_free: list of free SKBs for use
 381  * @rx_used: List of Rx buffers with no SKB
 382  * @need_update: flag to indicate we need to update read/write index
 383  *
 384  * NOTE:  rx_free and rx_used are used as a FIFO for iwl4965_rx_mem_buffers
 385  */
 386 struct iwl4965_rx_queue {
 387         __le32 *bd;
 388         dma_addr_t dma_addr;
 389         struct iwl4965_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
 390         struct iwl4965_rx_mem_buffer *queue[RX_QUEUE_SIZE];
 391         u32 processed;
 392         u32 read;
 393         u32 write;
 394         u32 free_count;
 395         struct list_head rx_free;
 396         struct list_head rx_used;
 397         int need_update;
 398         spinlock_t lock;
 399 };
 400
 401 #define IWL_SUPPORTED_RATES_IE_LEN         8
 402
 403 #define SCAN_INTERVAL 100
 404
 405 #define MAX_A_CHANNELS  252
 406 #define MIN_A_CHANNELS  7
 407
 408 #define MAX_B_CHANNELS  14
 409 #define MIN_B_CHANNELS  1
 410
 411 #define STATUS_HCMD_ACTIVE      0       /* host command in progress */
 412 #define STATUS_INT_ENABLED      1
 413 #define STATUS_RF_KILL_HW       2
 414 #define STATUS_RF_KILL_SW       3
 415 #define STATUS_INIT             4
 416 #define STATUS_ALIVE            5
 417 #define STATUS_READY            6
 418 #define STATUS_TEMPERATURE      7
 419 #define STATUS_GEO_CONFIGURED   8
 420 #define STATUS_EXIT_PENDING     9
 421 #define STATUS_IN_SUSPEND       10
 422 #define STATUS_STATISTICS       11
 423 #define STATUS_SCANNING         12
 424 #define STATUS_SCAN_ABORTING    13
 425 #define STATUS_SCAN_HW          14
 426 #define STATUS_POWER_PMI        15
 427 #define STATUS_FW_ERROR         16
 428 #define STATUS_CONF_PENDING     17
 429
 430 #define MAX_TID_COUNT        9
 431
 432 #define IWL_INVALID_RATE     0xFF
 433 #define IWL_INVALID_VALUE    -1
 434
 435 #ifdef CONFIG_IWL4965_HT
 436 /**
 437  * struct iwl4965_ht_agg -- aggregation status while waiting for block-ack
 438  * @txq_id: Tx queue used for Tx attempt
 439  * @frame_count: # frames attempted by Tx command
 440  * @wait_for_ba: Expect block-ack before next Tx reply
 441  * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
 442  * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
 443  * @bitmap1: High order, one bit for each frame pending ACK in Tx window
 444  * @rate_n_flags: Rate at which Tx was attempted
 445  *
 446  * If REPLY_TX indicates that aggregation was attempted, driver must wait
 447  * for block ack (REPLY_COMPRESSED_BA).  This struct stores tx reply info
 448  * until block ack arrives.
 449  */
 450 struct iwl4965_ht_agg {
 451         u16 txq_id;
 452         u16 frame_count;
 453         u16 wait_for_ba;
 454         u16 start_idx;
 455         u64 bitmap;
 456         u32 rate_n_flags;
 457 #define IWL_AGG_OFF 0
 458 #define IWL_AGG_ON 1
 459 #define IWL_EMPTYING_HW_QUEUE_ADDBA 2
 460 #define IWL_EMPTYING_HW_QUEUE_DELBA 3
 461         u8 state;
 462 };
 463
 464 #endif /* CONFIG_IWL4965_HT */
 465
 466 struct iwl4965_tid_data {
 467         u16 seq_number;
 468         u16 tfds_in_queue;
 469 #ifdef CONFIG_IWL4965_HT
 470         struct iwl4965_ht_agg agg;
 471 #endif /* CONFIG_IWL4965_HT */
 472 };
 473
 474 struct iwl4965_hw_key {
 475         enum ieee80211_key_alg alg;
 476         int keylen;
 477         u8 key[32];
 478 };
 479
 480 union iwl4965_ht_rate_supp {
 481         u16 rates;
 482         struct {
 483                 u8 siso_rate;
 484                 u8 mimo_rate;
 485         };
 486 };
 487
 488 #ifdef CONFIG_IWL4965_HT
 489 #define CFG_HT_RX_AMPDU_FACTOR_DEF  (0x3)
 490 #define CFG_HT_MPDU_DENSITY_2USEC   (0x5)
 491 #define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_2USEC
 492
 493 struct iwl_ht_info {
 494         /* self configuration data */
 495         u8 is_ht;
 496         u8 supported_chan_width;
 497         u16 tx_mimo_ps_mode;
 498         u8 is_green_field;
 499         u8 sgf;                 /* HT_SHORT_GI_* short guard interval */
 500         u8 max_amsdu_size;
 501         u8 ampdu_factor;
 502         u8 mpdu_density;
 503         u8 supp_mcs_set[16];
 504         /* BSS related data */
 505         u8 control_channel;
 506         u8 extension_chan_offset;
 507         u8 tx_chan_width;
 508         u8 ht_protection;
 509         u8 non_GF_STA_present;
 510 };
 511 #endif                          /*CONFIG_IWL4965_HT */
 512
 513 #ifdef CONFIG_IWL4965_QOS
 514
 515 union iwl4965_qos_capabity {
 516         struct {
 517                 u8 edca_count:4;        /* bit 0-3 */
 518                 u8 q_ack:1;             /* bit 4 */
 519                 u8 queue_request:1;     /* bit 5 */
 520                 u8 txop_request:1;      /* bit 6 */
 521                 u8 reserved:1;          /* bit 7 */
 522         } q_AP;
 523         struct {
 524                 u8 acvo_APSD:1;         /* bit 0 */
 525                 u8 acvi_APSD:1;         /* bit 1 */
 526                 u8 ac_bk_APSD:1;        /* bit 2 */
 527                 u8 ac_be_APSD:1;        /* bit 3 */
 528                 u8 q_ack:1;             /* bit 4 */
 529                 u8 max_len:2;           /* bit 5-6 */
 530                 u8 more_data_ack:1;     /* bit 7 */
 531         } q_STA;
 532         u8 val;
 533 };
 534
 535 /* QoS structures */
 536 struct iwl4965_qos_info {
 537         int qos_enable;
 538         int qos_active;
 539         union iwl4965_qos_capabity qos_cap;
 540         struct iwl4965_qosparam_cmd def_qos_parm;
 541 };
 542 #endif /*CONFIG_IWL4965_QOS */
 543
 544 #define STA_PS_STATUS_WAKE             0
 545 #define STA_PS_STATUS_SLEEP            1
 546
 547 struct iwl4965_station_entry {
 548         struct iwl4965_addsta_cmd sta;
 549         struct iwl4965_tid_data tid[MAX_TID_COUNT];
 550         u8 used;
 551         u8 ps_status;
 552         struct iwl4965_hw_key keyinfo;
 553 };
 554
 555 /* one for each uCode image (inst/data, boot/init/runtime) */
 556 struct fw_desc {
 557         void *v_addr;           /* access by driver */
 558         dma_addr_t p_addr;      /* access by card's busmaster DMA */
 559         u32 len;                /* bytes */
 560 };
 561
 562 /* uCode file layout */
 563 struct iwl4965_ucode {
 564         __le32 ver;             /* major/minor/subminor */
 565         __le32 inst_size;       /* bytes of runtime instructions */
 566         __le32 data_size;       /* bytes of runtime data */
 567         __le32 init_size;       /* bytes of initialization instructions */
 568         __le32 init_data_size;  /* bytes of initialization data */
 569         __le32 boot_size;       /* bytes of bootstrap instructions */
 570         u8 data[0];             /* data in same order as "size" elements */
 571 };
 572
 573 #define IWL_IBSS_MAC_HASH_SIZE 32
 574
 575 struct iwl4965_ibss_seq {
 576         u8 mac[ETH_ALEN];
 577         u16 seq_num;
 578         u16 frag_num;
 579         unsigned long packet_time;
 580         struct list_head list;
 581 };
 582
 583 /**
 584  * struct iwl4965_driver_hw_info
 585  * @max_txq_num: Max # Tx queues supported
 586  * @ac_queue_count: # Tx queues for EDCA Access Categories (AC)
 587  * @tx_cmd_len: Size of Tx command (but not including frame itself)
 588  * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
 589  * @rx_buffer_size:
 590  * @max_rxq_log: Log-base-2 of max_rxq_size
 591  * @max_stations:
 592  * @bcast_sta_id:
 593  * @shared_virt: Pointer to driver/uCode shared Tx Byte Counts and Rx status
 594  * @shared_phys: Physical Pointer to Tx Byte Counts and Rx status
 595  */
 596 struct iwl4965_driver_hw_info {
 597         u16 max_txq_num;
 598         u16 ac_queue_count;
 599         u16 tx_cmd_len;
 600         u16 max_rxq_size;
 601         u32 rx_buf_size;
 602         u32 max_pkt_size;
 603         u16 max_rxq_log;
 604         u8  max_stations;
 605         u8  bcast_sta_id;
 606         void *shared_virt;
 607         dma_addr_t shared_phys;
 608 };
 609
 610 #define HT_SHORT_GI_20MHZ_ONLY          (1 << 0)
 611 #define HT_SHORT_GI_40MHZ_ONLY          (1 << 1)
 612
 613
 614 #define IWL_RX_HDR(x) ((struct iwl4965_rx_frame_hdr *)(\
 615                        x->u.rx_frame.stats.payload + \
 616                        x->u.rx_frame.stats.phy_count))
 617 #define IWL_RX_END(x) ((struct iwl4965_rx_frame_end *)(\
 618                        IWL_RX_HDR(x)->payload + \
 619                        le16_to_cpu(IWL_RX_HDR(x)->len)))
 620 #define IWL_RX_STATS(x) (&x->u.rx_frame.stats)
 621 #define IWL_RX_DATA(x) (IWL_RX_HDR(x)->payload)
 622
 623
 624 /******************************************************************************
 625  *
 626  * Functions implemented in iwl-base.c which are forward declared here
 627  * for use by iwl-*.c
 628  *
 629  *****************************************************************************/
 630 struct iwl4965_addsta_cmd;
 631 extern int iwl4965_send_add_station(struct iwl4965_priv *priv,
 632                                 struct iwl4965_addsta_cmd *sta, u8 flags);
 633 extern u8 iwl4965_add_station_flags(struct iwl4965_priv *priv, const u8 *addr,
 634                           int is_ap, u8 flags, void *ht_data);
 635 extern int iwl4965_is_network_packet(struct iwl4965_priv *priv,
 636                                  struct ieee80211_hdr *header);
 637 extern int iwl4965_power_init_handle(struct iwl4965_priv *priv);
 638 extern int iwl4965_eeprom_init(struct iwl4965_priv *priv);
 639 #ifdef CONFIG_IWL4965_DEBUG
 640 extern void iwl4965_report_frame(struct iwl4965_priv *priv,
 641                              struct iwl4965_rx_packet *pkt,
 642                              struct ieee80211_hdr *header, int group100);
 643 #else
 644 static inline void iwl4965_report_frame(struct iwl4965_priv *priv,
 645                                     struct iwl4965_rx_packet *pkt,
 646                                     struct ieee80211_hdr *header,
 647                                     int group100) {}
 648 #endif
 649 extern void iwl4965_handle_data_packet_monitor(struct iwl4965_priv *priv,
 650                                            struct iwl4965_rx_mem_buffer *rxb,
 651                                            void *data, short len,
 652                                            struct ieee80211_rx_status *stats,
 653                                            u16 phy_flags);
 654 extern int iwl4965_is_duplicate_packet(struct iwl4965_priv *priv,
 655                                        struct ieee80211_hdr *header);
 656 extern int iwl4965_rx_queue_alloc(struct iwl4965_priv *priv);
 657 extern void iwl4965_rx_queue_reset(struct iwl4965_priv *priv,
 658                                struct iwl4965_rx_queue *rxq);
 659 extern int iwl4965_calc_db_from_ratio(int sig_ratio);
 660 extern int iwl4965_calc_sig_qual(int rssi_dbm, int noise_dbm);
 661 extern int iwl4965_tx_queue_init(struct iwl4965_priv *priv,
 662                              struct iwl4965_tx_queue *txq, int count, u32 id);
 663 extern void iwl4965_rx_replenish(void *data);
 664 extern void iwl4965_tx_queue_free(struct iwl4965_priv *priv, struct iwl4965_tx_queue *txq);
 665 extern int iwl4965_send_cmd_pdu(struct iwl4965_priv *priv, u8 id, u16 len,
 666                             const void *data);
 667 extern int __must_check iwl4965_send_cmd(struct iwl4965_priv *priv,
 668                 struct iwl4965_host_cmd *cmd);
 669 extern unsigned int iwl4965_fill_beacon_frame(struct iwl4965_priv *priv,
 670                                         struct ieee80211_hdr *hdr,
 671                                         const u8 *dest, int left);
 672 extern int iwl4965_rx_queue_update_write_ptr(struct iwl4965_priv *priv,
 673                                          struct iwl4965_rx_queue *q);
 674 extern int iwl4965_send_statistics_request(struct iwl4965_priv *priv);
 675 extern void iwl4965_set_decrypted_flag(struct iwl4965_priv *priv, struct sk_buff *skb,
 676                                    u32 decrypt_res,
 677                                    struct ieee80211_rx_status *stats);
 678 extern __le16 *ieee80211_get_qos_ctrl(struct ieee80211_hdr *hdr);
 679
 680 extern const u8 iwl4965_broadcast_addr[ETH_ALEN];
 681
 682 /*
 683  * Currently used by iwl-3945-rs... look at restructuring so that it doesn't
 684  * call this... todo... fix that.
 685 */
 686 extern u8 iwl4965_sync_station(struct iwl4965_priv *priv, int sta_id,
 687                            u16 tx_rate, u8 flags);
 688
 689 /******************************************************************************
 690  *
 691  * Functions implemented in iwl-[34]*.c which are forward declared here
 692  * for use by iwl-base.c
 693  *
 694  * NOTE:  The implementation of these functions are hardware specific
 695  * which is why they are in the hardware specific files (vs. iwl-base.c)
 696  *
 697  * Naming convention --
 698  * iwl4965_         <-- Its part of iwlwifi (should be changed to iwl4965_)
 699  * iwl4965_hw_      <-- Hardware specific (implemented in iwl-XXXX.c by all HW)
 700  * iwlXXXX_     <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
 701  * iwl4965_bg_      <-- Called from work queue context
 702  * iwl4965_mac_     <-- mac80211 callback
 703  *
 704  ****************************************************************************/
 705 extern void iwl4965_hw_rx_handler_setup(struct iwl4965_priv *priv);
 706 extern void iwl4965_hw_setup_deferred_work(struct iwl4965_priv *priv);
 707 extern void iwl4965_hw_cancel_deferred_work(struct iwl4965_priv *priv);
 708 extern int iwl4965_hw_rxq_stop(struct iwl4965_priv *priv);
 709 extern int iwl4965_hw_set_hw_setting(struct iwl4965_priv *priv);
 710 extern int iwl4965_hw_nic_init(struct iwl4965_priv *priv);
 711 extern int iwl4965_hw_nic_stop_master(struct iwl4965_priv *priv);
 712 extern void iwl4965_hw_txq_ctx_free(struct iwl4965_priv *priv);
 713 extern void iwl4965_hw_txq_ctx_stop(struct iwl4965_priv *priv);
 714 extern int iwl4965_hw_nic_reset(struct iwl4965_priv *priv);
 715 extern int iwl4965_hw_txq_attach_buf_to_tfd(struct iwl4965_priv *priv, void *tfd,
 716                                         dma_addr_t addr, u16 len);
 717 extern int iwl4965_hw_txq_free_tfd(struct iwl4965_priv *priv, struct iwl4965_tx_queue *txq);
 718 extern int iwl4965_hw_get_temperature(struct iwl4965_priv *priv);
 719 extern int iwl4965_hw_tx_queue_init(struct iwl4965_priv *priv,
 720                                 struct iwl4965_tx_queue *txq);
 721 extern unsigned int iwl4965_hw_get_beacon_cmd(struct iwl4965_priv *priv,
 722                                  struct iwl4965_frame *frame, u8 rate);
 723 extern int iwl4965_hw_get_rx_read(struct iwl4965_priv *priv);
 724 extern void iwl4965_hw_build_tx_cmd_rate(struct iwl4965_priv *priv,
 725                                      struct iwl4965_cmd *cmd,
 726                                      struct ieee80211_tx_control *ctrl,
 727                                      struct ieee80211_hdr *hdr,
 728                                      int sta_id, int tx_id);
 729 extern int iwl4965_hw_reg_send_txpower(struct iwl4965_priv *priv);
 730 extern int iwl4965_hw_reg_set_txpower(struct iwl4965_priv *priv, s8 power);
 731 extern void iwl4965_hw_rx_statistics(struct iwl4965_priv *priv,
 732                                  struct iwl4965_rx_mem_buffer *rxb);
 733 extern void iwl4965_disable_events(struct iwl4965_priv *priv);
 734 extern int iwl4965_get_temperature(const struct iwl4965_priv *priv);
 735
 736 /**
 737  * iwl4965_hw_find_station - Find station id for a given BSSID
 738  * @bssid: MAC address of station ID to find
 739  *
 740  * NOTE:  This should not be hardware specific but the code has
 741  * not yet been merged into a single common layer for managing the
 742  * station tables.
 743  */
 744 extern u8 iwl4965_hw_find_station(struct iwl4965_priv *priv, const u8 *bssid);
 745
 746 extern int iwl4965_hw_channel_switch(struct iwl4965_priv *priv, u16 channel);
 747 extern int iwl4965_tx_queue_reclaim(struct iwl4965_priv *priv, int txq_id, int index);
 748 extern int iwl4965_queue_space(const struct iwl4965_queue *q);
 749 struct iwl4965_priv;
 750
 751 /*
 752  * Forward declare iwl-4965.c functions for iwl-base.c
 753  */
 754 extern int iwl4965_eeprom_acquire_semaphore(struct iwl4965_priv *priv);
 755
 756 extern int iwl4965_tx_queue_update_wr_ptr(struct iwl4965_priv *priv,
 757                                           struct iwl4965_tx_queue *txq,
 758                                           u16 byte_cnt);
 759 extern void iwl4965_add_station(struct iwl4965_priv *priv, const u8 *addr,
 760                                 int is_ap);
 761 extern void iwl4965_set_rxon_chain(struct iwl4965_priv *priv);
 762 extern int iwl4965_alive_notify(struct iwl4965_priv *priv);
 763 extern void iwl4965_update_rate_scaling(struct iwl4965_priv *priv, u8 mode);
 764 extern void iwl4965_chain_noise_reset(struct iwl4965_priv *priv);
 765 extern void iwl4965_init_sensitivity(struct iwl4965_priv *priv, u8 flags,
 766                                      u8 force);
 767 extern int iwl4965_set_fat_chan_info(struct iwl4965_priv *priv,
 768                                 enum ieee80211_band band,
 769                                 u16 channel,
 770                                 const struct iwl4965_eeprom_channel *eeprom_ch,
 771                                 u8 fat_extension_channel);
 772 extern void iwl4965_rf_kill_ct_config(struct iwl4965_priv *priv);
 773
 774 #ifdef CONFIG_IWL4965_HT
 775 extern void iwl4965_init_ht_hw_capab(struct ieee80211_ht_info *ht_info,
 776                                         int mode);
 777 extern void iwl4965_set_rxon_ht(struct iwl4965_priv *priv,
 778                                 struct iwl_ht_info *ht_info);
 779 extern void iwl4965_set_ht_add_station(struct iwl4965_priv *priv, u8 index,
 780                                 struct ieee80211_ht_info *sta_ht_inf);
 781 extern int iwl4965_mac_ampdu_action(struct ieee80211_hw *hw,
 782                                     enum ieee80211_ampdu_mlme_action action,
 783                                     const u8 *addr, u16 tid, u16 *ssn);
 784 extern int iwl4965_check_empty_hw_queue(struct iwl4965_priv *priv, int sta_id,
 785                                         u8 tid, int txq_id);
 786 #endif /*CONFIG_IWL4965_HT */
 787 /* Structures, enum, and defines specific to the 4965 */
 788
 789 #define IWL4965_KW_SIZE 0x1000  /*4k */
 790
 791 struct iwl4965_kw {
 792         dma_addr_t dma_addr;
 793         void *v_addr;
 794         size_t size;
 795 };
 796
 797 #define IWL_CHANNEL_WIDTH_20MHZ   0
 798 #define IWL_CHANNEL_WIDTH_40MHZ   1
 799
 800 #define IWL_MIMO_PS_STATIC        0
 801 #define IWL_MIMO_PS_NONE          3
 802 #define IWL_MIMO_PS_DYNAMIC       1
 803 #define IWL_MIMO_PS_INVALID       2
 804
 805 #define IWL_OPERATION_MODE_AUTO     0
 806 #define IWL_OPERATION_MODE_HT_ONLY  1
 807 #define IWL_OPERATION_MODE_MIXED    2
 808 #define IWL_OPERATION_MODE_20MHZ    3
 809
 810 #define IWL_EXT_CHANNEL_OFFSET_AUTO   0
 811 #define IWL_EXT_CHANNEL_OFFSET_ABOVE  1
 812 #define IWL_EXT_CHANNEL_OFFSET_       2
 813 #define IWL_EXT_CHANNEL_OFFSET_BELOW  3
 814 #define IWL_EXT_CHANNEL_OFFSET_MAX    4
 815
 816 #define NRG_NUM_PREV_STAT_L     20
 817 #define NUM_RX_CHAINS           (3)
 818
 819 #define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
 820
 821 struct iwl4965_lq_mngr {
 822         spinlock_t lock;
 823         s32 max_window_size;
 824         s32 *expected_tpt;
 825         u8 *next_higher_rate;
 826         u8 *next_lower_rate;
 827         unsigned long stamp;
 828         unsigned long stamp_last;
 829         u32 flush_time;
 830         u32 tx_packets;
 831         u8 lq_ready;
 832 };
 833
 834 /* Sensitivity and chain noise calibration */
 835 #define INTERFERENCE_DATA_AVAILABLE     __constant_cpu_to_le32(1)
 836 #define INITIALIZATION_VALUE            0xFFFF
 837 #define CAL_NUM_OF_BEACONS              20
 838 #define MAXIMUM_ALLOWED_PATHLOSS        15
 839
 840 #define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
 841
 842 #define MAX_FA_OFDM  50
 843 #define MIN_FA_OFDM  5
 844 #define MAX_FA_CCK   50
 845 #define MIN_FA_CCK   5
 846
 847 #define NRG_MIN_CCK  97
 848 #define NRG_MAX_CCK  0
 849
 850 #define AUTO_CORR_MIN_OFDM        85
 851 #define AUTO_CORR_MIN_OFDM_MRC    170
 852 #define AUTO_CORR_MIN_OFDM_X1     105
 853 #define AUTO_CORR_MIN_OFDM_MRC_X1 220
 854 #define AUTO_CORR_MAX_OFDM        120
 855 #define AUTO_CORR_MAX_OFDM_MRC    210
 856 #define AUTO_CORR_MAX_OFDM_X1     140
 857 #define AUTO_CORR_MAX_OFDM_MRC_X1 270
 858 #define AUTO_CORR_STEP_OFDM       1
 859
 860 #define AUTO_CORR_MIN_CCK      (125)
 861 #define AUTO_CORR_MAX_CCK      (200)
 862 #define AUTO_CORR_MIN_CCK_MRC  200
 863 #define AUTO_CORR_MAX_CCK_MRC  400
 864 #define AUTO_CORR_STEP_CCK     3
 865 #define AUTO_CORR_MAX_TH_CCK   160
 866
 867 #define NRG_DIFF               2
 868 #define NRG_STEP_CCK           2
 869 #define NRG_MARGIN             8
 870 #define MAX_NUMBER_CCK_NO_FA 100
 871
 872 #define AUTO_CORR_CCK_MIN_VAL_DEF    (125)
 873
 874 #define CHAIN_A             0
 875 #define CHAIN_B             1
 876 #define CHAIN_C             2
 877 #define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
 878 #define ALL_BAND_FILTER                 0xFF00
 879 #define IN_BAND_FILTER                  0xFF
 880 #define MIN_AVERAGE_NOISE_MAX_VALUE     0xFFFFFFFF
 881
 882 enum iwl4965_false_alarm_state {
 883         IWL_FA_TOO_MANY = 0,
 884         IWL_FA_TOO_FEW = 1,
 885         IWL_FA_GOOD_RANGE = 2,
 886 };
 887
 888 enum iwl4965_chain_noise_state {
 889         IWL_CHAIN_NOISE_ALIVE = 0,  /* must be 0 */
 890         IWL_CHAIN_NOISE_ACCUMULATE = 1,
 891         IWL_CHAIN_NOISE_CALIBRATED = 2,
 892 };
 893
 894 enum iwl4965_sensitivity_state {
 895         IWL_SENS_CALIB_ALLOWED = 0,
 896         IWL_SENS_CALIB_NEED_REINIT = 1,
 897 };
 898
 899 enum iwl4965_calib_enabled_state {
 900         IWL_CALIB_DISABLED = 0,  /* must be 0 */
 901         IWL_CALIB_ENABLED = 1,
 902 };
 903
 904 struct statistics_general_data {
 905         u32 beacon_silence_rssi_a;
 906         u32 beacon_silence_rssi_b;
 907         u32 beacon_silence_rssi_c;
 908         u32 beacon_energy_a;
 909         u32 beacon_energy_b;
 910         u32 beacon_energy_c;
 911 };
 912
 913 /* Sensitivity calib data */
 914 struct iwl4965_sensitivity_data {
 915         u32 auto_corr_ofdm;
 916         u32 auto_corr_ofdm_mrc;
 917         u32 auto_corr_ofdm_x1;
 918         u32 auto_corr_ofdm_mrc_x1;
 919         u32 auto_corr_cck;
 920         u32 auto_corr_cck_mrc;
 921
 922         u32 last_bad_plcp_cnt_ofdm;
 923         u32 last_fa_cnt_ofdm;
 924         u32 last_bad_plcp_cnt_cck;
 925         u32 last_fa_cnt_cck;
 926
 927         u32 nrg_curr_state;
 928         u32 nrg_prev_state;
 929         u32 nrg_value[10];
 930         u8  nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
 931         u32 nrg_silence_ref;
 932         u32 nrg_energy_idx;
 933         u32 nrg_silence_idx;
 934         u32 nrg_th_cck;
 935         s32 nrg_auto_corr_silence_diff;
 936         u32 num_in_cck_no_fa;
 937         u32 nrg_th_ofdm;
 938
 939         u8 state;
 940 };
 941
 942 /* Chain noise (differential Rx gain) calib data */
 943 struct iwl4965_chain_noise_data {
 944         u8 state;
 945         u16 beacon_count;
 946         u32 chain_noise_a;
 947         u32 chain_noise_b;
 948         u32 chain_noise_c;
 949         u32 chain_signal_a;
 950         u32 chain_signal_b;
 951         u32 chain_signal_c;
 952         u8 disconn_array[NUM_RX_CHAINS];
 953         u8 delta_gain_code[NUM_RX_CHAINS];
 954         u8 radio_write;
 955 };
 956
 957 #define EEPROM_SEM_TIMEOUT 10           /* milliseconds */
 958 #define EEPROM_SEM_RETRY_LIMIT 1000     /* number of attempts (not time) */
 959
 960
 961 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
 962
 963 enum {
 964         MEASUREMENT_READY = (1 << 0),
 965         MEASUREMENT_ACTIVE = (1 << 1),
 966 };
 967
 968 #endif
 969
 970 struct iwl4965_priv {
 971
 972         /* ieee device used by generic ieee processing code */
 973         struct ieee80211_hw *hw;
 974         struct ieee80211_channel *ieee_channels;
 975         struct ieee80211_rate *ieee_rates;
 976
 977         /* temporary frame storage list */
 978         struct list_head free_frames;
 979         int frames_count;
 980
 981         enum ieee80211_band band;
 982         int alloc_rxb_skb;
 983         bool add_radiotap;
 984
 985         void (*rx_handlers[REPLY_MAX])(struct iwl4965_priv *priv,
 986                                        struct iwl4965_rx_mem_buffer *rxb);
 987
 988         struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
 989
 990 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
 991         /* spectrum measurement report caching */
 992         struct iwl4965_spectrum_notification measure_report;
 993         u8 measurement_status;
 994 #endif
 995         /* ucode beacon time */
 996         u32 ucode_beacon_time;
 997
 998         /* we allocate array of iwl4965_channel_info for NIC's valid channels.
 999          *    Access via channel # using indirect index array */
1000         struct iwl4965_channel_info *channel_info;      /* channel info array */
1001         u8 channel_count;       /* # of channels */
1002
1003         /* each calibration channel group in the EEPROM has a derived
1004          * clip setting for each rate. */
1005         const struct iwl4965_clip_group clip_groups[5];
1006
1007         /* thermal calibration */
1008         s32 temperature;        /* degrees Kelvin */
1009         s32 last_temperature;
1010
1011         /* Scan related variables */
1012         unsigned long last_scan_jiffies;
1013         unsigned long next_scan_jiffies;
1014         unsigned long scan_start;
1015         unsigned long scan_pass_start;
1016         unsigned long scan_start_tsf;
1017         int scan_bands;
1018         int one_direct_scan;
1019         u8 direct_ssid_len;
1020         u8 direct_ssid[IW_ESSID_MAX_SIZE];
1021         struct iwl4965_scan_cmd *scan;
1022         u8 only_active_channel;
1023
1024         /* spinlock */
1025         spinlock_t lock;        /* protect general shared data */
1026         spinlock_t hcmd_lock;   /* protect hcmd */
1027         struct mutex mutex;
1028
1029         /* basic pci-network driver stuff */
1030         struct pci_dev *pci_dev;
1031
1032         /* pci hardware address support */
1033         void __iomem *hw_base;
1034
1035         /* uCode images, save to reload in case of failure */
1036         struct fw_desc ucode_code;      /* runtime inst */
1037         struct fw_desc ucode_data;      /* runtime data original */
1038         struct fw_desc ucode_data_backup;       /* runtime data save/restore */
1039         struct fw_desc ucode_init;      /* initialization inst */
1040         struct fw_desc ucode_init_data; /* initialization data */
1041         struct fw_desc ucode_boot;      /* bootstrap inst */
1042
1043
1044         struct iwl4965_rxon_time_cmd rxon_timing;
1045
1046         /* We declare this const so it can only be
1047          * changed via explicit cast within the
1048          * routines that actually update the physical
1049          * hardware */
1050         const struct iwl4965_rxon_cmd active_rxon;
1051         struct iwl4965_rxon_cmd staging_rxon;
1052
1053         int error_recovering;
1054         struct iwl4965_rxon_cmd recovery_rxon;
1055
1056         /* 1st responses from initialize and runtime uCode images.
1057          * 4965's initialize alive response contains some calibration data. */
1058         struct iwl4965_init_alive_resp card_alive_init;
1059         struct iwl4965_alive_resp card_alive;
1060
1061 #ifdef LED
1062         /* LED related variables */
1063         struct iwl4965_activity_blink activity;
1064         unsigned long led_packets;
1065         int led_state;
1066 #endif
1067
1068         u16 active_rate;
1069         u16 active_rate_basic;
1070
1071         u8 call_post_assoc_from_beacon;
1072         u8 assoc_station_added;
1073         u8 use_ant_b_for_management_frame;      /* Tx antenna selection */
1074         u8 valid_antenna;       /* Bit mask of antennas actually connected */
1075 #ifdef CONFIG_IWL4965_SENSITIVITY
1076         struct iwl4965_sensitivity_data sensitivity_data;
1077         struct iwl4965_chain_noise_data chain_noise_data;
1078         u8 start_calib;
1079         __le16 sensitivity_tbl[HD_TABLE_SIZE];
1080 #endif /*CONFIG_IWL4965_SENSITIVITY*/
1081
1082 #ifdef CONFIG_IWL4965_HT
1083         struct iwl_ht_info current_ht_config;
1084 #endif
1085         u8 last_phy_res[100];
1086
1087         /* Rate scaling data */
1088         struct iwl4965_lq_mngr lq_mngr;
1089
1090         /* Rate scaling data */
1091         s8 data_retry_limit;
1092         u8 retry_rate;
1093
1094         wait_queue_head_t wait_command_queue;
1095
1096         int activity_timer_active;
1097
1098         /* Rx and Tx DMA processing queues */
1099         struct iwl4965_rx_queue rxq;
1100         struct iwl4965_tx_queue txq[IWL_MAX_NUM_QUEUES];
1101         unsigned long txq_ctx_active_msk;
1102         struct iwl4965_kw kw;   /* keep warm address */
1103         u32 scd_base_addr;      /* scheduler sram base address */
1104
1105         unsigned long status;
1106         u32 config;
1107
1108         int last_rx_rssi;       /* From Rx packet statisitics */
1109         int last_rx_noise;      /* From beacon statistics */
1110
1111         struct iwl4965_power_mgr power_data;
1112
1113         struct iwl4965_notif_statistics statistics;
1114         unsigned long last_statistics_time;
1115
1116         /* context information */
1117         u8 essid[IW_ESSID_MAX_SIZE];
1118         u8 essid_len;
1119         u16 rates_mask;
1120
1121         u32 power_mode;
1122         u32 antenna;
1123         u8 bssid[ETH_ALEN];
1124         u16 rts_threshold;
1125         u8 mac_addr[ETH_ALEN];
1126
1127         /*station table variables */
1128         spinlock_t sta_lock;
1129         int num_stations;
1130         struct iwl4965_station_entry stations[IWL_STATION_COUNT];
1131
1132         /* Indication if ieee80211_ops->open has been called */
1133         int is_open;
1134
1135         u8 mac80211_registered;
1136         int is_abg;
1137
1138         u32 notif_missed_beacons;
1139
1140         /* Rx'd packet timing information */
1141         u32 last_beacon_time;
1142         u64 last_tsf;
1143
1144         /* Duplicate packet detection */
1145         u16 last_seq_num;
1146         u16 last_frag_num;
1147         unsigned long last_packet_time;
1148
1149         /* Hash table for finding stations in IBSS network */
1150         struct list_head ibss_mac_hash[IWL_IBSS_MAC_HASH_SIZE];
1151
1152         /* eeprom */
1153         struct iwl4965_eeprom eeprom;
1154
1155         int iw_mode;
1156
1157         struct sk_buff *ibss_beacon;
1158
1159         /* Last Rx'd beacon timestamp */
1160         u32 timestamp0;
1161         u32 timestamp1;
1162         u16 beacon_int;
1163         struct iwl4965_driver_hw_info hw_setting;
1164         struct ieee80211_vif *vif;
1165
1166         /* Current association information needed to configure the
1167          * hardware */
1168         u16 assoc_id;
1169         u16 assoc_capability;
1170         u8 ps_mode;
1171
1172 #ifdef CONFIG_IWL4965_QOS
1173         struct iwl4965_qos_info qos_data;
1174 #endif /*CONFIG_IWL4965_QOS */
1175
1176         struct workqueue_struct *workqueue;
1177
1178         struct work_struct up;
1179         struct work_struct restart;
1180         struct work_struct calibrated_work;
1181         struct work_struct scan_completed;
1182         struct work_struct rx_replenish;
1183         struct work_struct rf_kill;
1184         struct work_struct abort_scan;
1185         struct work_struct update_link_led;
1186         struct work_struct auth_work;
1187         struct work_struct report_work;
1188         struct work_struct request_scan;
1189         struct work_struct beacon_update;
1190
1191         struct tasklet_struct irq_tasklet;
1192
1193         struct delayed_work init_alive_start;
1194         struct delayed_work alive_start;
1195         struct delayed_work activity_timer;
1196         struct delayed_work thermal_periodic;
1197         struct delayed_work gather_stats;
1198         struct delayed_work scan_check;
1199         struct delayed_work post_associate;
1200
1201 #define IWL_DEFAULT_TX_POWER 0x0F
1202         s8 user_txpower_limit;
1203         s8 max_channel_txpower_limit;
1204
1205 #ifdef CONFIG_PM
1206         u32 pm_state[16];
1207 #endif
1208
1209 #ifdef CONFIG_IWL4965_DEBUG
1210         /* debugging info */
1211         u32 framecnt_to_us;
1212         atomic_t restrict_refcnt;
1213 #endif
1214
1215         struct work_struct txpower_work;
1216 #ifdef CONFIG_IWL4965_SENSITIVITY
1217         struct work_struct sensitivity_work;
1218 #endif
1219         struct work_struct statistics_work;
1220         struct timer_list statistics_periodic;
1221 }; /*iwl4965_priv */
1222
1223 static inline int iwl4965_is_associated(struct iwl4965_priv *priv)
1224 {
1225         return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
1226 }
1227
1228 static inline int is_channel_valid(const struct iwl4965_channel_info *ch_info)
1229 {
1230         if (ch_info == NULL)
1231                 return 0;
1232         return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
1233 }
1234
1235 static inline int is_channel_narrow(const struct iwl4965_channel_info *ch_info)
1236 {
1237         return (ch_info->flags & EEPROM_CHANNEL_NARROW) ? 1 : 0;
1238 }
1239
1240 static inline int is_channel_radar(const struct iwl4965_channel_info *ch_info)
1241 {
1242         return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
1243 }
1244
1245 static inline u8 is_channel_a_band(const struct iwl4965_channel_info *ch_info)
1246 {
1247         return ch_info->band == IEEE80211_BAND_5GHZ;
1248 }
1249
1250 static inline u8 is_channel_bg_band(const struct iwl4965_channel_info *ch_info)
1251 {
1252         return ch_info->band == IEEE80211_BAND_2GHZ;
1253 }
1254
1255 static inline int is_channel_passive(const struct iwl4965_channel_info *ch)
1256 {
1257         return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1258 }
1259
1260 static inline int is_channel_ibss(const struct iwl4965_channel_info *ch)
1261 {
1262         return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1263 }
1264
1265 extern const struct iwl4965_channel_info *iwl4965_get_channel_info(
1266         const struct iwl4965_priv *priv, enum ieee80211_band band, u16 channel);
1267
1268 /* Requires full declaration of iwl4965_priv before including */
1269 #include "iwl-4965-io.h"
1270
1271 #endif                          /* __iwl4965_4965_h__ */