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         u8 phymode;       /* MODE_IEEE80211{A,B,G} */
 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 #ifdef CONFIG_IWL4965_HT_AGG
 437 /**
 438  * struct iwl4965_ht_agg -- aggregation status while waiting for block-ack
 439  * @txq_id: Tx queue used for Tx attempt
 440  * @frame_count: # frames attempted by Tx command
 441  * @wait_for_ba: Expect block-ack before next Tx reply
 442  * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
 443  * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
 444  * @bitmap1: High order, one bit for each frame pending ACK in Tx window
 445  * @rate_n_flags: Rate at which Tx was attempted
 446  *
 447  * If REPLY_TX indicates that aggregation was attempted, driver must wait
 448  * for block ack (REPLY_COMPRESSED_BA).  This struct stores tx reply info
 449  * until block ack arrives.
 450  */
 451 struct iwl4965_ht_agg {
 452         u16 txq_id;
 453         u16 frame_count;
 454         u16 wait_for_ba;
 455         u16 start_idx;
 456         u32 bitmap0;
 457         u32 bitmap1;
 458         u32 rate_n_flags;
 459 };
 460 #endif /* CONFIG_IWL4965_HT_AGG */
 461 #endif /* CONFIG_IWL4965_HT */
 462
 463 struct iwl4965_tid_data {
 464         u16 seq_number;
 465 #ifdef CONFIG_IWL4965_HT
 466 #ifdef CONFIG_IWL4965_HT_AGG
 467         struct iwl4965_ht_agg agg;
 468 #endif  /* CONFIG_IWL4965_HT_AGG */
 469 #endif /* CONFIG_IWL4965_HT */
 470 };
 471
 472 struct iwl4965_hw_key {
 473         enum ieee80211_key_alg alg;
 474         int keylen;
 475         u8 key[32];
 476 };
 477
 478 union iwl4965_ht_rate_supp {
 479         u16 rates;
 480         struct {
 481                 u8 siso_rate;
 482                 u8 mimo_rate;
 483         };
 484 };
 485
 486 #ifdef CONFIG_IWL4965_HT
 487 #define CFG_HT_RX_AMPDU_FACTOR_DEF  (0x3)
 488 #define CFG_HT_MPDU_DENSITY_2USEC   (0x5)
 489 #define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_2USEC
 490
 491 struct iwl_ht_info {
 492         /* self configuration data */
 493         u8 is_ht;
 494         u8 supported_chan_width;
 495         u16 tx_mimo_ps_mode;
 496         u8 is_green_field;
 497         u8 sgf;                 /* HT_SHORT_GI_* short guard interval */
 498         u8 max_amsdu_size;
 499         u8 ampdu_factor;
 500         u8 mpdu_density;
 501         u8 supp_mcs_set[16];
 502         /* BSS related data */
 503         u8 control_channel;
 504         u8 extension_chan_offset;
 505         u8 tx_chan_width;
 506         u8 ht_protection;
 507         u8 non_GF_STA_present;
 508 };
 509 #endif                          /*CONFIG_IWL4965_HT */
 510
 511 #ifdef CONFIG_IWL4965_QOS
 512
 513 union iwl4965_qos_capabity {
 514         struct {
 515                 u8 edca_count:4;        /* bit 0-3 */
 516                 u8 q_ack:1;             /* bit 4 */
 517                 u8 queue_request:1;     /* bit 5 */
 518                 u8 txop_request:1;      /* bit 6 */
 519                 u8 reserved:1;          /* bit 7 */
 520         } q_AP;
 521         struct {
 522                 u8 acvo_APSD:1;         /* bit 0 */
 523                 u8 acvi_APSD:1;         /* bit 1 */
 524                 u8 ac_bk_APSD:1;        /* bit 2 */
 525                 u8 ac_be_APSD:1;        /* bit 3 */
 526                 u8 q_ack:1;             /* bit 4 */
 527                 u8 max_len:2;           /* bit 5-6 */
 528                 u8 more_data_ack:1;     /* bit 7 */
 529         } q_STA;
 530         u8 val;
 531 };
 532
 533 /* QoS structures */
 534 struct iwl4965_qos_info {
 535         int qos_enable;
 536         int qos_active;
 537         union iwl4965_qos_capabity qos_cap;
 538         struct iwl4965_qosparam_cmd def_qos_parm;
 539 };
 540 #endif /*CONFIG_IWL4965_QOS */
 541
 542 #define STA_PS_STATUS_WAKE             0
 543 #define STA_PS_STATUS_SLEEP            1
 544
 545 struct iwl4965_station_entry {
 546         struct iwl4965_addsta_cmd sta;
 547         struct iwl4965_tid_data tid[MAX_TID_COUNT];
 548         u8 used;
 549         u8 ps_status;
 550         struct iwl4965_hw_key keyinfo;
 551 };
 552
 553 /* one for each uCode image (inst/data, boot/init/runtime) */
 554 struct fw_desc {
 555         void *v_addr;           /* access by driver */
 556         dma_addr_t p_addr;      /* access by card's busmaster DMA */
 557         u32 len;                /* bytes */
 558 };
 559
 560 /* uCode file layout */
 561 struct iwl4965_ucode {
 562         __le32 ver;             /* major/minor/subminor */
 563         __le32 inst_size;       /* bytes of runtime instructions */
 564         __le32 data_size;       /* bytes of runtime data */
 565         __le32 init_size;       /* bytes of initialization instructions */
 566         __le32 init_data_size;  /* bytes of initialization data */
 567         __le32 boot_size;       /* bytes of bootstrap instructions */
 568         u8 data[0];             /* data in same order as "size" elements */
 569 };
 570
 571 #define IWL_IBSS_MAC_HASH_SIZE 32
 572
 573 struct iwl4965_ibss_seq {
 574         u8 mac[ETH_ALEN];
 575         u16 seq_num;
 576         u16 frag_num;
 577         unsigned long packet_time;
 578         struct list_head list;
 579 };
 580
 581 /**
 582  * struct iwl4965_driver_hw_info
 583  * @max_txq_num: Max # Tx queues supported
 584  * @ac_queue_count: # Tx queues for EDCA Access Categories (AC)
 585  * @tx_cmd_len: Size of Tx command (but not including frame itself)
 586  * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
 587  * @rx_buffer_size:
 588  * @max_rxq_log: Log-base-2 of max_rxq_size
 589  * @max_stations:
 590  * @bcast_sta_id:
 591  * @shared_virt: Pointer to driver/uCode shared Tx Byte Counts and Rx status
 592  * @shared_phys: Physical Pointer to Tx Byte Counts and Rx status
 593  */
 594 struct iwl4965_driver_hw_info {
 595         u16 max_txq_num;
 596         u16 ac_queue_count;
 597         u16 tx_cmd_len;
 598         u16 max_rxq_size;
 599         u32 rx_buf_size;
 600         u32 max_pkt_size;
 601         u16 max_rxq_log;
 602         u8  max_stations;
 603         u8  bcast_sta_id;
 604         void *shared_virt;
 605         dma_addr_t shared_phys;
 606 };
 607
 608 #define HT_SHORT_GI_20MHZ_ONLY          (1 << 0)
 609 #define HT_SHORT_GI_40MHZ_ONLY          (1 << 1)
 610
 611
 612 #define IWL_RX_HDR(x) ((struct iwl4965_rx_frame_hdr *)(\
 613                        x->u.rx_frame.stats.payload + \
 614                        x->u.rx_frame.stats.phy_count))
 615 #define IWL_RX_END(x) ((struct iwl4965_rx_frame_end *)(\
 616                        IWL_RX_HDR(x)->payload + \
 617                        le16_to_cpu(IWL_RX_HDR(x)->len)))
 618 #define IWL_RX_STATS(x) (&x->u.rx_frame.stats)
 619 #define IWL_RX_DATA(x) (IWL_RX_HDR(x)->payload)
 620
 621
 622 /******************************************************************************
 623  *
 624  * Functions implemented in iwl-base.c which are forward declared here
 625  * for use by iwl-*.c
 626  *
 627  *****************************************************************************/
 628 struct iwl4965_addsta_cmd;
 629 extern int iwl4965_send_add_station(struct iwl4965_priv *priv,
 630                                 struct iwl4965_addsta_cmd *sta, u8 flags);
 631 extern u8 iwl4965_add_station_flags(struct iwl4965_priv *priv, const u8 *addr,
 632                           int is_ap, u8 flags, void *ht_data);
 633 extern int iwl4965_is_network_packet(struct iwl4965_priv *priv,
 634                                  struct ieee80211_hdr *header);
 635 extern int iwl4965_power_init_handle(struct iwl4965_priv *priv);
 636 extern int iwl4965_eeprom_init(struct iwl4965_priv *priv);
 637 #ifdef CONFIG_IWL4965_DEBUG
 638 extern void iwl4965_report_frame(struct iwl4965_priv *priv,
 639                              struct iwl4965_rx_packet *pkt,
 640                              struct ieee80211_hdr *header, int group100);
 641 #else
 642 static inline void iwl4965_report_frame(struct iwl4965_priv *priv,
 643                                     struct iwl4965_rx_packet *pkt,
 644                                     struct ieee80211_hdr *header,
 645                                     int group100) {}
 646 #endif
 647 extern void iwl4965_handle_data_packet_monitor(struct iwl4965_priv *priv,
 648                                            struct iwl4965_rx_mem_buffer *rxb,
 649                                            void *data, short len,
 650                                            struct ieee80211_rx_status *stats,
 651                                            u16 phy_flags);
 652 extern int iwl4965_is_duplicate_packet(struct iwl4965_priv *priv,
 653                                        struct ieee80211_hdr *header);
 654 extern int iwl4965_rx_queue_alloc(struct iwl4965_priv *priv);
 655 extern void iwl4965_rx_queue_reset(struct iwl4965_priv *priv,
 656                                struct iwl4965_rx_queue *rxq);
 657 extern int iwl4965_calc_db_from_ratio(int sig_ratio);
 658 extern int iwl4965_calc_sig_qual(int rssi_dbm, int noise_dbm);
 659 extern int iwl4965_tx_queue_init(struct iwl4965_priv *priv,
 660                              struct iwl4965_tx_queue *txq, int count, u32 id);
 661 extern void iwl4965_rx_replenish(void *data);
 662 extern void iwl4965_tx_queue_free(struct iwl4965_priv *priv, struct iwl4965_tx_queue *txq);
 663 extern int iwl4965_send_cmd_pdu(struct iwl4965_priv *priv, u8 id, u16 len,
 664                             const void *data);
 665 extern int __must_check iwl4965_send_cmd(struct iwl4965_priv *priv,
 666                 struct iwl4965_host_cmd *cmd);
 667 extern unsigned int iwl4965_fill_beacon_frame(struct iwl4965_priv *priv,
 668                                         struct ieee80211_hdr *hdr,
 669                                         const u8 *dest, int left);
 670 extern int iwl4965_rx_queue_update_write_ptr(struct iwl4965_priv *priv,
 671                                          struct iwl4965_rx_queue *q);
 672 extern int iwl4965_send_statistics_request(struct iwl4965_priv *priv);
 673 extern void iwl4965_set_decrypted_flag(struct iwl4965_priv *priv, struct sk_buff *skb,
 674                                    u32 decrypt_res,
 675                                    struct ieee80211_rx_status *stats);
 676 extern __le16 *ieee80211_get_qos_ctrl(struct ieee80211_hdr *hdr);
 677
 678 extern const u8 iwl4965_broadcast_addr[ETH_ALEN];
 679
 680 /*
 681  * Currently used by iwl-3945-rs... look at restructuring so that it doesn't
 682  * call this... todo... fix that.
 683 */
 684 extern u8 iwl4965_sync_station(struct iwl4965_priv *priv, int sta_id,
 685                            u16 tx_rate, u8 flags);
 686
 687 /******************************************************************************
 688  *
 689  * Functions implemented in iwl-[34]*.c which are forward declared here
 690  * for use by iwl-base.c
 691  *
 692  * NOTE:  The implementation of these functions are hardware specific
 693  * which is why they are in the hardware specific files (vs. iwl-base.c)
 694  *
 695  * Naming convention --
 696  * iwl4965_         <-- Its part of iwlwifi (should be changed to iwl4965_)
 697  * iwl4965_hw_      <-- Hardware specific (implemented in iwl-XXXX.c by all HW)
 698  * iwlXXXX_     <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
 699  * iwl4965_bg_      <-- Called from work queue context
 700  * iwl4965_mac_     <-- mac80211 callback
 701  *
 702  ****************************************************************************/
 703 extern void iwl4965_hw_rx_handler_setup(struct iwl4965_priv *priv);
 704 extern void iwl4965_hw_setup_deferred_work(struct iwl4965_priv *priv);
 705 extern void iwl4965_hw_cancel_deferred_work(struct iwl4965_priv *priv);
 706 extern int iwl4965_hw_rxq_stop(struct iwl4965_priv *priv);
 707 extern int iwl4965_hw_set_hw_setting(struct iwl4965_priv *priv);
 708 extern int iwl4965_hw_nic_init(struct iwl4965_priv *priv);
 709 extern int iwl4965_hw_nic_stop_master(struct iwl4965_priv *priv);
 710 extern void iwl4965_hw_txq_ctx_free(struct iwl4965_priv *priv);
 711 extern void iwl4965_hw_txq_ctx_stop(struct iwl4965_priv *priv);
 712 extern int iwl4965_hw_nic_reset(struct iwl4965_priv *priv);
 713 extern int iwl4965_hw_txq_attach_buf_to_tfd(struct iwl4965_priv *priv, void *tfd,
 714                                         dma_addr_t addr, u16 len);
 715 extern int iwl4965_hw_txq_free_tfd(struct iwl4965_priv *priv, struct iwl4965_tx_queue *txq);
 716 extern int iwl4965_hw_get_temperature(struct iwl4965_priv *priv);
 717 extern int iwl4965_hw_tx_queue_init(struct iwl4965_priv *priv,
 718                                 struct iwl4965_tx_queue *txq);
 719 extern unsigned int iwl4965_hw_get_beacon_cmd(struct iwl4965_priv *priv,
 720                                  struct iwl4965_frame *frame, u8 rate);
 721 extern int iwl4965_hw_get_rx_read(struct iwl4965_priv *priv);
 722 extern void iwl4965_hw_build_tx_cmd_rate(struct iwl4965_priv *priv,
 723                                      struct iwl4965_cmd *cmd,
 724                                      struct ieee80211_tx_control *ctrl,
 725                                      struct ieee80211_hdr *hdr,
 726                                      int sta_id, int tx_id);
 727 extern int iwl4965_hw_reg_send_txpower(struct iwl4965_priv *priv);
 728 extern int iwl4965_hw_reg_set_txpower(struct iwl4965_priv *priv, s8 power);
 729 extern void iwl4965_hw_rx_statistics(struct iwl4965_priv *priv,
 730                                  struct iwl4965_rx_mem_buffer *rxb);
 731 extern void iwl4965_disable_events(struct iwl4965_priv *priv);
 732 extern int iwl4965_get_temperature(const struct iwl4965_priv *priv);
 733
 734 /**
 735  * iwl4965_hw_find_station - Find station id for a given BSSID
 736  * @bssid: MAC address of station ID to find
 737  *
 738  * NOTE:  This should not be hardware specific but the code has
 739  * not yet been merged into a single common layer for managing the
 740  * station tables.
 741  */
 742 extern u8 iwl4965_hw_find_station(struct iwl4965_priv *priv, const u8 *bssid);
 743
 744 extern int iwl4965_hw_channel_switch(struct iwl4965_priv *priv, u16 channel);
 745 extern int iwl4965_tx_queue_reclaim(struct iwl4965_priv *priv, int txq_id, int index);
 746
 747 struct iwl4965_priv;
 748
 749 /*
 750  * Forward declare iwl-4965.c functions for iwl-base.c
 751  */
 752 extern int iwl4965_eeprom_acquire_semaphore(struct iwl4965_priv *priv);
 753
 754 extern int iwl4965_tx_queue_update_wr_ptr(struct iwl4965_priv *priv,
 755                                           struct iwl4965_tx_queue *txq,
 756                                           u16 byte_cnt);
 757 extern void iwl4965_add_station(struct iwl4965_priv *priv, const u8 *addr,
 758                                 int is_ap);
 759 extern void iwl4965_set_rxon_chain(struct iwl4965_priv *priv);
 760 extern int iwl4965_alive_notify(struct iwl4965_priv *priv);
 761 extern void iwl4965_update_rate_scaling(struct iwl4965_priv *priv, u8 mode);
 762 extern void iwl4965_chain_noise_reset(struct iwl4965_priv *priv);
 763 extern void iwl4965_init_sensitivity(struct iwl4965_priv *priv, u8 flags,
 764                                      u8 force);
 765 extern int iwl4965_set_fat_chan_info(struct iwl4965_priv *priv, int phymode,
 766                                 u16 channel,
 767                                 const struct iwl4965_eeprom_channel *eeprom_ch,
 768                                 u8 fat_extension_channel);
 769 extern void iwl4965_rf_kill_ct_config(struct iwl4965_priv *priv);
 770
 771 #ifdef CONFIG_IWL4965_HT
 772 extern void iwl4965_init_ht_hw_capab(struct ieee80211_ht_info *ht_info,
 773                                         int mode);
 774 extern void iwl4965_set_rxon_ht(struct iwl4965_priv *priv,
 775                                 struct iwl_ht_info *ht_info);
 776 extern void iwl4965_set_ht_add_station(struct iwl4965_priv *priv, u8 index,
 777                                 struct ieee80211_ht_info *sta_ht_inf);
 778 extern int iwl4965_mac_ampdu_action(struct ieee80211_hw *hw,
 779                                     enum ieee80211_ampdu_mlme_action action,
 780                                     const u8 *addr, u16 tid, u16 ssn);
 781 #ifdef CONFIG_IWL4965_HT_AGG
 782 extern int iwl4965_mac_ht_tx_agg_start(struct ieee80211_hw *hw, u8 *da,
 783                                    u16 tid, u16 *start_seq_num);
 784 extern int iwl4965_mac_ht_tx_agg_stop(struct ieee80211_hw *hw, u8 *da,
 785                                   u16 tid, int generator);
 786 extern void iwl4965_turn_off_agg(struct iwl4965_priv *priv, u8 tid);
 787 extern void iwl4965_tl_get_stats(struct iwl4965_priv *priv,
 788                                 struct ieee80211_hdr *hdr);
 789 #endif /* CONFIG_IWL4965_HT_AGG */
 790 #endif /*CONFIG_IWL4965_HT */
 791 /* Structures, enum, and defines specific to the 4965 */
 792
 793 #define IWL4965_KW_SIZE 0x1000  /*4k */
 794
 795 struct iwl4965_kw {
 796         dma_addr_t dma_addr;
 797         void *v_addr;
 798         size_t size;
 799 };
 800
 801 #define TID_QUEUE_CELL_SPACING 50       /*mS */
 802 #define TID_QUEUE_MAX_SIZE     20
 803 #define TID_ROUND_VALUE        5        /* mS */
 804 #define TID_MAX_LOAD_COUNT     8
 805
 806 #define TID_MAX_TIME_DIFF ((TID_QUEUE_MAX_SIZE - 1) * TID_QUEUE_CELL_SPACING)
 807 #define TIME_WRAP_AROUND(x, y) (((y) > (x)) ? (y) - (x) : (0-(x)) + (y))
 808
 809 #define TID_ALL_ENABLED         0x7f
 810 #define TID_ALL_SPECIFIED       0xff
 811 #define TID_AGG_TPT_THREHOLD    0x0
 812
 813 #define IWL_CHANNEL_WIDTH_20MHZ   0
 814 #define IWL_CHANNEL_WIDTH_40MHZ   1
 815
 816 #define IWL_MIMO_PS_STATIC        0
 817 #define IWL_MIMO_PS_NONE          3
 818 #define IWL_MIMO_PS_DYNAMIC       1
 819 #define IWL_MIMO_PS_INVALID       2
 820
 821 #define IWL_OPERATION_MODE_AUTO     0
 822 #define IWL_OPERATION_MODE_HT_ONLY  1
 823 #define IWL_OPERATION_MODE_MIXED    2
 824 #define IWL_OPERATION_MODE_20MHZ    3
 825
 826 #define IWL_EXT_CHANNEL_OFFSET_AUTO   0
 827 #define IWL_EXT_CHANNEL_OFFSET_ABOVE  1
 828 #define IWL_EXT_CHANNEL_OFFSET_       2
 829 #define IWL_EXT_CHANNEL_OFFSET_BELOW  3
 830 #define IWL_EXT_CHANNEL_OFFSET_MAX    4
 831
 832 #define NRG_NUM_PREV_STAT_L     20
 833 #define NUM_RX_CHAINS           (3)
 834
 835 #define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
 836
 837 struct iwl4965_traffic_load {
 838         unsigned long time_stamp;
 839         u32 packet_count[TID_QUEUE_MAX_SIZE];
 840         u8 queue_count;
 841         u8 head;
 842         u32 total;
 843 };
 844
 845 #ifdef CONFIG_IWL4965_HT_AGG
 846 /**
 847  * struct iwl4965_agg_control
 848  * @requested_ba: bit map of tids requesting aggregation/block-ack
 849  * @granted_ba: bit map of tids granted aggregation/block-ack
 850  */
 851 struct iwl4965_agg_control {
 852         unsigned long next_retry;
 853         u32 wait_for_agg_status;
 854         u32 tid_retry;
 855         u32 requested_ba;
 856         u32 granted_ba;
 857         u8 auto_agg;
 858         u32 tid_traffic_load_threshold;
 859         u32 ba_timeout;
 860         struct iwl4965_traffic_load traffic_load[TID_MAX_LOAD_COUNT];
 861 };
 862 #endif                          /*CONFIG_IWL4965_HT_AGG */
 863
 864 struct iwl4965_lq_mngr {
 865 #ifdef CONFIG_IWL4965_HT_AGG
 866         struct iwl4965_agg_control agg_ctrl;
 867 #endif
 868         spinlock_t lock;
 869         s32 max_window_size;
 870         s32 *expected_tpt;
 871         u8 *next_higher_rate;
 872         u8 *next_lower_rate;
 873         unsigned long stamp;
 874         unsigned long stamp_last;
 875         u32 flush_time;
 876         u32 tx_packets;
 877         u8 lq_ready;
 878 };
 879
 880
 881 /* Sensitivity and chain noise calibration */
 882 #define INTERFERENCE_DATA_AVAILABLE     __constant_cpu_to_le32(1)
 883 #define INITIALIZATION_VALUE            0xFFFF
 884 #define CAL_NUM_OF_BEACONS              20
 885 #define MAXIMUM_ALLOWED_PATHLOSS        15
 886
 887 #define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
 888
 889 #define MAX_FA_OFDM  50
 890 #define MIN_FA_OFDM  5
 891 #define MAX_FA_CCK   50
 892 #define MIN_FA_CCK   5
 893
 894 #define NRG_MIN_CCK  97
 895 #define NRG_MAX_CCK  0
 896
 897 #define AUTO_CORR_MIN_OFDM        85
 898 #define AUTO_CORR_MIN_OFDM_MRC    170
 899 #define AUTO_CORR_MIN_OFDM_X1     105
 900 #define AUTO_CORR_MIN_OFDM_MRC_X1 220
 901 #define AUTO_CORR_MAX_OFDM        120
 902 #define AUTO_CORR_MAX_OFDM_MRC    210
 903 #define AUTO_CORR_MAX_OFDM_X1     140
 904 #define AUTO_CORR_MAX_OFDM_MRC_X1 270
 905 #define AUTO_CORR_STEP_OFDM       1
 906
 907 #define AUTO_CORR_MIN_CCK      (125)
 908 #define AUTO_CORR_MAX_CCK      (200)
 909 #define AUTO_CORR_MIN_CCK_MRC  200
 910 #define AUTO_CORR_MAX_CCK_MRC  400
 911 #define AUTO_CORR_STEP_CCK     3
 912 #define AUTO_CORR_MAX_TH_CCK   160
 913
 914 #define NRG_DIFF               2
 915 #define NRG_STEP_CCK           2
 916 #define NRG_MARGIN             8
 917 #define MAX_NUMBER_CCK_NO_FA 100
 918
 919 #define AUTO_CORR_CCK_MIN_VAL_DEF    (125)
 920
 921 #define CHAIN_A             0
 922 #define CHAIN_B             1
 923 #define CHAIN_C             2
 924 #define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
 925 #define ALL_BAND_FILTER                 0xFF00
 926 #define IN_BAND_FILTER                  0xFF
 927 #define MIN_AVERAGE_NOISE_MAX_VALUE     0xFFFFFFFF
 928
 929 enum iwl4965_false_alarm_state {
 930         IWL_FA_TOO_MANY = 0,
 931         IWL_FA_TOO_FEW = 1,
 932         IWL_FA_GOOD_RANGE = 2,
 933 };
 934
 935 enum iwl4965_chain_noise_state {
 936         IWL_CHAIN_NOISE_ALIVE = 0,  /* must be 0 */
 937         IWL_CHAIN_NOISE_ACCUMULATE = 1,
 938         IWL_CHAIN_NOISE_CALIBRATED = 2,
 939 };
 940
 941 enum iwl4965_sensitivity_state {
 942         IWL_SENS_CALIB_ALLOWED = 0,
 943         IWL_SENS_CALIB_NEED_REINIT = 1,
 944 };
 945
 946 enum iwl4965_calib_enabled_state {
 947         IWL_CALIB_DISABLED = 0,  /* must be 0 */
 948         IWL_CALIB_ENABLED = 1,
 949 };
 950
 951 struct statistics_general_data {
 952         u32 beacon_silence_rssi_a;
 953         u32 beacon_silence_rssi_b;
 954         u32 beacon_silence_rssi_c;
 955         u32 beacon_energy_a;
 956         u32 beacon_energy_b;
 957         u32 beacon_energy_c;
 958 };
 959
 960 /* Sensitivity calib data */
 961 struct iwl4965_sensitivity_data {
 962         u32 auto_corr_ofdm;
 963         u32 auto_corr_ofdm_mrc;
 964         u32 auto_corr_ofdm_x1;
 965         u32 auto_corr_ofdm_mrc_x1;
 966         u32 auto_corr_cck;
 967         u32 auto_corr_cck_mrc;
 968
 969         u32 last_bad_plcp_cnt_ofdm;
 970         u32 last_fa_cnt_ofdm;
 971         u32 last_bad_plcp_cnt_cck;
 972         u32 last_fa_cnt_cck;
 973
 974         u32 nrg_curr_state;
 975         u32 nrg_prev_state;
 976         u32 nrg_value[10];
 977         u8  nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
 978         u32 nrg_silence_ref;
 979         u32 nrg_energy_idx;
 980         u32 nrg_silence_idx;
 981         u32 nrg_th_cck;
 982         s32 nrg_auto_corr_silence_diff;
 983         u32 num_in_cck_no_fa;
 984         u32 nrg_th_ofdm;
 985
 986         u8 state;
 987 };
 988
 989 /* Chain noise (differential Rx gain) calib data */
 990 struct iwl4965_chain_noise_data {
 991         u8 state;
 992         u16 beacon_count;
 993         u32 chain_noise_a;
 994         u32 chain_noise_b;
 995         u32 chain_noise_c;
 996         u32 chain_signal_a;
 997         u32 chain_signal_b;
 998         u32 chain_signal_c;
 999         u8 disconn_array[NUM_RX_CHAINS];
1000         u8 delta_gain_code[NUM_RX_CHAINS];
1001         u8 radio_write;
1002 };
1003
1004 #define EEPROM_SEM_TIMEOUT 10           /* milliseconds */
1005 #define EEPROM_SEM_RETRY_LIMIT 1000     /* number of attempts (not time) */
1006
1007
1008 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
1009
1010 enum {
1011         MEASUREMENT_READY = (1 << 0),
1012         MEASUREMENT_ACTIVE = (1 << 1),
1013 };
1014
1015 #endif
1016
1017 struct iwl4965_priv {
1018
1019         /* ieee device used by generic ieee processing code */
1020         struct ieee80211_hw *hw;
1021         struct ieee80211_channel *ieee_channels;
1022         struct ieee80211_rate *ieee_rates;
1023
1024         /* temporary frame storage list */
1025         struct list_head free_frames;
1026         int frames_count;
1027
1028         u8 phymode;
1029         int alloc_rxb_skb;
1030         bool add_radiotap;
1031
1032         void (*rx_handlers[REPLY_MAX])(struct iwl4965_priv *priv,
1033                                        struct iwl4965_rx_mem_buffer *rxb);
1034
1035         const struct ieee80211_hw_mode *modes;
1036
1037 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
1038         /* spectrum measurement report caching */
1039         struct iwl4965_spectrum_notification measure_report;
1040         u8 measurement_status;
1041 #endif
1042         /* ucode beacon time */
1043         u32 ucode_beacon_time;
1044
1045         /* we allocate array of iwl4965_channel_info for NIC's valid channels.
1046          *    Access via channel # using indirect index array */
1047         struct iwl4965_channel_info *channel_info;      /* channel info array */
1048         u8 channel_count;       /* # of channels */
1049
1050         /* each calibration channel group in the EEPROM has a derived
1051          * clip setting for each rate. */
1052         const struct iwl4965_clip_group clip_groups[5];
1053
1054         /* thermal calibration */
1055         s32 temperature;        /* degrees Kelvin */
1056         s32 last_temperature;
1057
1058         /* Scan related variables */
1059         unsigned long last_scan_jiffies;
1060         unsigned long next_scan_jiffies;
1061         unsigned long scan_start;
1062         unsigned long scan_pass_start;
1063         unsigned long scan_start_tsf;
1064         int scan_bands;
1065         int one_direct_scan;
1066         u8 direct_ssid_len;
1067         u8 direct_ssid[IW_ESSID_MAX_SIZE];
1068         struct iwl4965_scan_cmd *scan;
1069         u8 only_active_channel;
1070
1071         /* spinlock */
1072         spinlock_t lock;        /* protect general shared data */
1073         spinlock_t hcmd_lock;   /* protect hcmd */
1074         struct mutex mutex;
1075
1076         /* basic pci-network driver stuff */
1077         struct pci_dev *pci_dev;
1078
1079         /* pci hardware address support */
1080         void __iomem *hw_base;
1081
1082         /* uCode images, save to reload in case of failure */
1083         struct fw_desc ucode_code;      /* runtime inst */
1084         struct fw_desc ucode_data;      /* runtime data original */
1085         struct fw_desc ucode_data_backup;       /* runtime data save/restore */
1086         struct fw_desc ucode_init;      /* initialization inst */
1087         struct fw_desc ucode_init_data; /* initialization data */
1088         struct fw_desc ucode_boot;      /* bootstrap inst */
1089
1090
1091         struct iwl4965_rxon_time_cmd rxon_timing;
1092
1093         /* We declare this const so it can only be
1094          * changed via explicit cast within the
1095          * routines that actually update the physical
1096          * hardware */
1097         const struct iwl4965_rxon_cmd active_rxon;
1098         struct iwl4965_rxon_cmd staging_rxon;
1099
1100         int error_recovering;
1101         struct iwl4965_rxon_cmd recovery_rxon;
1102
1103         /* 1st responses from initialize and runtime uCode images.
1104          * 4965's initialize alive response contains some calibration data. */
1105         struct iwl4965_init_alive_resp card_alive_init;
1106         struct iwl4965_alive_resp card_alive;
1107
1108 #ifdef LED
1109         /* LED related variables */
1110         struct iwl4965_activity_blink activity;
1111         unsigned long led_packets;
1112         int led_state;
1113 #endif
1114
1115         u16 active_rate;
1116         u16 active_rate_basic;
1117
1118         u8 call_post_assoc_from_beacon;
1119         u8 assoc_station_added;
1120         u8 use_ant_b_for_management_frame;      /* Tx antenna selection */
1121         u8 valid_antenna;       /* Bit mask of antennas actually connected */
1122 #ifdef CONFIG_IWL4965_SENSITIVITY
1123         struct iwl4965_sensitivity_data sensitivity_data;
1124         struct iwl4965_chain_noise_data chain_noise_data;
1125         u8 start_calib;
1126         __le16 sensitivity_tbl[HD_TABLE_SIZE];
1127 #endif /*CONFIG_IWL4965_SENSITIVITY*/
1128
1129 #ifdef CONFIG_IWL4965_HT
1130         struct iwl_ht_info current_ht_config;
1131 #endif
1132         u8 last_phy_res[100];
1133
1134         /* Rate scaling data */
1135         struct iwl4965_lq_mngr lq_mngr;
1136
1137         /* Rate scaling data */
1138         s8 data_retry_limit;
1139         u8 retry_rate;
1140
1141         wait_queue_head_t wait_command_queue;
1142
1143         int activity_timer_active;
1144
1145         /* Rx and Tx DMA processing queues */
1146         struct iwl4965_rx_queue rxq;
1147         struct iwl4965_tx_queue txq[IWL_MAX_NUM_QUEUES];
1148         unsigned long txq_ctx_active_msk;
1149         struct iwl4965_kw kw;   /* keep warm address */
1150         u32 scd_base_addr;      /* scheduler sram base address */
1151
1152         unsigned long status;
1153         u32 config;
1154
1155         int last_rx_rssi;       /* From Rx packet statisitics */
1156         int last_rx_noise;      /* From beacon statistics */
1157
1158         struct iwl4965_power_mgr power_data;
1159
1160         struct iwl4965_notif_statistics statistics;
1161         unsigned long last_statistics_time;
1162
1163         /* context information */
1164         u8 essid[IW_ESSID_MAX_SIZE];
1165         u8 essid_len;
1166         u16 rates_mask;
1167
1168         u32 power_mode;
1169         u32 antenna;
1170         u8 bssid[ETH_ALEN];
1171         u16 rts_threshold;
1172         u8 mac_addr[ETH_ALEN];
1173
1174         /*station table variables */
1175         spinlock_t sta_lock;
1176         int num_stations;
1177         struct iwl4965_station_entry stations[IWL_STATION_COUNT];
1178
1179         /* Indication if ieee80211_ops->open has been called */
1180         int is_open;
1181
1182         u8 mac80211_registered;
1183         int is_abg;
1184
1185         u32 notif_missed_beacons;
1186
1187         /* Rx'd packet timing information */
1188         u32 last_beacon_time;
1189         u64 last_tsf;
1190
1191         /* Duplicate packet detection */
1192         u16 last_seq_num;
1193         u16 last_frag_num;
1194         unsigned long last_packet_time;
1195
1196         /* Hash table for finding stations in IBSS network */
1197         struct list_head ibss_mac_hash[IWL_IBSS_MAC_HASH_SIZE];
1198
1199         /* eeprom */
1200         struct iwl4965_eeprom eeprom;
1201
1202         int iw_mode;
1203
1204         struct sk_buff *ibss_beacon;
1205
1206         /* Last Rx'd beacon timestamp */
1207         u32 timestamp0;
1208         u32 timestamp1;
1209         u16 beacon_int;
1210         struct iwl4965_driver_hw_info hw_setting;
1211         struct ieee80211_vif *vif;
1212
1213         /* Current association information needed to configure the
1214          * hardware */
1215         u16 assoc_id;
1216         u16 assoc_capability;
1217         u8 ps_mode;
1218
1219 #ifdef CONFIG_IWL4965_QOS
1220         struct iwl4965_qos_info qos_data;
1221 #endif /*CONFIG_IWL4965_QOS */
1222
1223         struct workqueue_struct *workqueue;
1224
1225         struct work_struct up;
1226         struct work_struct restart;
1227         struct work_struct calibrated_work;
1228         struct work_struct scan_completed;
1229         struct work_struct rx_replenish;
1230         struct work_struct rf_kill;
1231         struct work_struct abort_scan;
1232         struct work_struct update_link_led;
1233         struct work_struct auth_work;
1234         struct work_struct report_work;
1235         struct work_struct request_scan;
1236         struct work_struct beacon_update;
1237
1238         struct tasklet_struct irq_tasklet;
1239
1240         struct delayed_work init_alive_start;
1241         struct delayed_work alive_start;
1242         struct delayed_work activity_timer;
1243         struct delayed_work thermal_periodic;
1244         struct delayed_work gather_stats;
1245         struct delayed_work scan_check;
1246         struct delayed_work post_associate;
1247
1248 #define IWL_DEFAULT_TX_POWER 0x0F
1249         s8 user_txpower_limit;
1250         s8 max_channel_txpower_limit;
1251
1252 #ifdef CONFIG_PM
1253         u32 pm_state[16];
1254 #endif
1255
1256 #ifdef CONFIG_IWL4965_DEBUG
1257         /* debugging info */
1258         u32 framecnt_to_us;
1259         atomic_t restrict_refcnt;
1260 #endif
1261
1262         struct work_struct txpower_work;
1263 #ifdef CONFIG_IWL4965_SENSITIVITY
1264         struct work_struct sensitivity_work;
1265 #endif
1266         struct work_struct statistics_work;
1267         struct timer_list statistics_periodic;
1268
1269 #ifdef CONFIG_IWL4965_HT_AGG
1270         struct work_struct agg_work;
1271 #endif
1272 };                              /*iwl4965_priv */
1273
1274 static inline int iwl4965_is_associated(struct iwl4965_priv *priv)
1275 {
1276         return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
1277 }
1278
1279 static inline int is_channel_valid(const struct iwl4965_channel_info *ch_info)
1280 {
1281         if (ch_info == NULL)
1282                 return 0;
1283         return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
1284 }
1285
1286 static inline int is_channel_narrow(const struct iwl4965_channel_info *ch_info)
1287 {
1288         return (ch_info->flags & EEPROM_CHANNEL_NARROW) ? 1 : 0;
1289 }
1290
1291 static inline int is_channel_radar(const struct iwl4965_channel_info *ch_info)
1292 {
1293         return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
1294 }
1295
1296 static inline u8 is_channel_a_band(const struct iwl4965_channel_info *ch_info)
1297 {
1298         return ch_info->phymode == MODE_IEEE80211A;
1299 }
1300
1301 static inline u8 is_channel_bg_band(const struct iwl4965_channel_info *ch_info)
1302 {
1303         return ((ch_info->phymode == MODE_IEEE80211B) ||
1304                 (ch_info->phymode == MODE_IEEE80211G));
1305 }
1306
1307 static inline int is_channel_passive(const struct iwl4965_channel_info *ch)
1308 {
1309         return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1310 }
1311
1312 static inline int is_channel_ibss(const struct iwl4965_channel_info *ch)
1313 {
1314         return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1315 }
1316
1317 extern const struct iwl4965_channel_info *iwl4965_get_channel_info(
1318         const struct iwl4965_priv *priv, int phymode, u16 channel);
1319
1320 /* Requires full declaration of iwl4965_priv before including */
1321 #include "iwl-4965-io.h"
1322
1323 #endif                          /* __iwl4965_4965_h__ */