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 #ifndef __iwl_4965_h__
  27 #define __iwl_4965_h__
  28
  29 #include <linux/pci.h> /* for struct pci_device_id */
  30 #include <linux/kernel.h>
  31 #include <net/ieee80211_radiotap.h>
  32
  33 struct iwl_priv;
  34
  35 /* Hardware specific file defines the PCI IDs table for that hardware module */
  36 extern struct pci_device_id iwl_hw_card_ids[];
  37
  38 #define DRV_NAME        "iwl4965"
  39 #include "iwl-4965-hw.h"
  40 #include "iwl-prph.h"
  41 #include "iwl-4965-debug.h"
  42
  43 /* Default noise level to report when noise measurement is not available.
  44  *   This may be because we're:
  45  *   1)  Not associated (4965, no beacon statistics being sent to driver)
  46  *   2)  Scanning (noise measurement does not apply to associated channel)
  47  *   3)  Receiving CCK (3945 delivers noise info only for OFDM frames)
  48  * Use default noise value of -127 ... this is below the range of measurable
  49  *   Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
  50  *   Also, -127 works better than 0 when averaging frames with/without
  51  *   noise info (e.g. averaging might be done in app); measured dBm values are
  52  *   always negative ... using a negative value as the default keeps all
  53  *   averages within an s8's (used in some apps) range of negative values. */
  54 #define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
  55
  56 /* Module parameters accessible from iwl-*.c */
  57 extern int iwl_param_hwcrypto;
  58 extern int iwl_param_queues_num;
  59
  60 enum iwl_antenna {
  61         IWL_ANTENNA_DIVERSITY,
  62         IWL_ANTENNA_MAIN,
  63         IWL_ANTENNA_AUX
  64 };
  65
  66 /*
  67  * RTS threshold here is total size [2347] minus 4 FCS bytes
  68  * Per spec:
  69  *   a value of 0 means RTS on all data/management packets
  70  *   a value > max MSDU size means no RTS
  71  * else RTS for data/management frames where MPDU is larger
  72  *   than RTS value.
  73  */
  74 #define DEFAULT_RTS_THRESHOLD     2347U
  75 #define MIN_RTS_THRESHOLD         0U
  76 #define MAX_RTS_THRESHOLD         2347U
  77 #define MAX_MSDU_SIZE             2304U
  78 #define MAX_MPDU_SIZE             2346U
  79 #define DEFAULT_BEACON_INTERVAL   100U
  80 #define DEFAULT_SHORT_RETRY_LIMIT 7U
  81 #define DEFAULT_LONG_RETRY_LIMIT  4U
  82
  83 struct iwl_rx_mem_buffer {
  84         dma_addr_t dma_addr;
  85         struct sk_buff *skb;
  86         struct list_head list;
  87 };
  88
  89 struct iwl_rt_rx_hdr {
  90         struct ieee80211_radiotap_header rt_hdr;
  91         __le64 rt_tsf;          /* TSF */
  92         u8 rt_flags;            /* radiotap packet flags */
  93         u8 rt_rate;             /* rate in 500kb/s */
  94         __le16 rt_channelMHz;   /* channel in MHz */
  95         __le16 rt_chbitmask;    /* channel bitfield */
  96         s8 rt_dbmsignal;        /* signal in dBm, kluged to signed */
  97         s8 rt_dbmnoise;
  98         u8 rt_antenna;          /* antenna number */
  99         u8 payload[0];          /* payload... */
 100 } __attribute__ ((packed));
 101
 102 struct iwl_rt_tx_hdr {
 103         struct ieee80211_radiotap_header rt_hdr;
 104         u8 rt_rate;             /* rate in 500kb/s */
 105         __le16 rt_channel;      /* channel in mHz */
 106         __le16 rt_chbitmask;    /* channel bitfield */
 107         s8 rt_dbmsignal;        /* signal in dBm, kluged to signed */
 108         u8 rt_antenna;          /* antenna number */
 109         u8 payload[0];          /* payload... */
 110 } __attribute__ ((packed));
 111
 112 /*
 113  * Generic queue structure
 114  *
 115  * Contains common data for Rx and Tx queues
 116  */
 117 struct iwl_queue {
 118         int n_bd;              /* number of BDs in this queue */
 119         int write_ptr;       /* 1-st empty entry (index) host_w*/
 120         int read_ptr;         /* last used entry (index) host_r*/
 121         dma_addr_t dma_addr;   /* physical addr for BD's */
 122         int n_window;          /* safe queue window */
 123         u32 id;
 124         int low_mark;          /* low watermark, resume queue if free
 125                                 * space more than this */
 126         int high_mark;         /* high watermark, stop queue if free
 127                                 * space less than this */
 128 } __attribute__ ((packed));
 129
 130 #define MAX_NUM_OF_TBS          (20)
 131
 132 struct iwl_tx_info {
 133         struct ieee80211_tx_status status;
 134         struct sk_buff *skb[MAX_NUM_OF_TBS];
 135 };
 136
 137 /**
 138  * struct iwl_tx_queue - Tx Queue for DMA
 139  * @need_update: need to update read/write index
 140  * @shed_retry: queue is HT AGG enabled
 141  *
 142  * Queue consists of circular buffer of BD's and required locking structures.
 143  */
 144 struct iwl_tx_queue {
 145         struct iwl_queue q;
 146         struct iwl_tfd_frame *bd;
 147         struct iwl_cmd *cmd;
 148         dma_addr_t dma_addr_cmd;
 149         struct iwl_tx_info *txb;
 150         int need_update;
 151         int sched_retry;
 152         int active;
 153 };
 154
 155 #define IWL_NUM_SCAN_RATES         (2)
 156
 157 struct iwl_channel_tgd_info {
 158         u8 type;
 159         s8 max_power;
 160 };
 161
 162 struct iwl_channel_tgh_info {
 163         s64 last_radar_time;
 164 };
 165
 166 /* current Tx power values to use, one for each rate for each channel.
 167  * requested power is limited by:
 168  * -- regulatory EEPROM limits for this channel
 169  * -- hardware capabilities (clip-powers)
 170  * -- spectrum management
 171  * -- user preference (e.g. iwconfig)
 172  * when requested power is set, base power index must also be set. */
 173 struct iwl_channel_power_info {
 174         struct iwl_tx_power tpc;        /* actual radio and DSP gain settings */
 175         s8 power_table_index;   /* actual (compenst'd) index into gain table */
 176         s8 base_power_index;    /* gain index for power at factory temp. */
 177         s8 requested_power;     /* power (dBm) requested for this chnl/rate */
 178 };
 179
 180 /* current scan Tx power values to use, one for each scan rate for each
 181  * channel. */
 182 struct iwl_scan_power_info {
 183         struct iwl_tx_power tpc;        /* actual radio and DSP gain settings */
 184         s8 power_table_index;   /* actual (compenst'd) index into gain table */
 185         s8 requested_power;     /* scan pwr (dBm) requested for chnl/rate */
 186 };
 187
 188 /* Channel unlock period is 15 seconds. If no beacon or probe response
 189  * has been received within 15 seconds on a locked channel then the channel
 190  * remains locked. */
 191 #define TX_UNLOCK_PERIOD 15
 192
 193 /* CSA lock period is 15 seconds.  If a CSA has been received on a channel in
 194  * the last 15 seconds, the channel is locked */
 195 #define CSA_LOCK_PERIOD 15
 196 /*
 197  * One for each channel, holds all channel setup data
 198  * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
 199  *     with one another!
 200  */
 201 #define IWL4965_MAX_RATE (33)
 202
 203 struct iwl_channel_info {
 204         struct iwl_channel_tgd_info tgd;
 205         struct iwl_channel_tgh_info tgh;
 206         struct iwl_eeprom_channel eeprom;       /* EEPROM regulatory limit */
 207         struct iwl_eeprom_channel fat_eeprom;   /* EEPROM regulatory limit for
 208                                                  * FAT channel */
 209
 210         u8 channel;       /* channel number */
 211         u8 flags;         /* flags copied from EEPROM */
 212         s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
 213         s8 curr_txpow;    /* (dBm) regulatory/spectrum/user (not h/w) */
 214         s8 min_power;     /* always 0 */
 215         s8 scan_power;    /* (dBm) regul. eeprom, direct scans, any rate */
 216
 217         u8 group_index;   /* 0-4, maps channel to group1/2/3/4/5 */
 218         u8 band_index;    /* 0-4, maps channel to band1/2/3/4/5 */
 219         u8 phymode;       /* MODE_IEEE80211{A,B,G} */
 220
 221         /* Radio/DSP gain settings for each "normal" data Tx rate.
 222          * These include, in addition to RF and DSP gain, a few fields for
 223          *   remembering/modifying gain settings (indexes). */
 224         struct iwl_channel_power_info power_info[IWL4965_MAX_RATE];
 225
 226         /* FAT channel info */
 227         s8 fat_max_power_avg;   /* (dBm) regul. eeprom, normal Tx, any rate */
 228         s8 fat_curr_txpow;      /* (dBm) regulatory/spectrum/user (not h/w) */
 229         s8 fat_min_power;       /* always 0 */
 230         s8 fat_scan_power;      /* (dBm) eeprom, direct scans, any rate */
 231         u8 fat_flags;           /* flags copied from EEPROM */
 232         u8 fat_extension_channel;
 233
 234         /* Radio/DSP gain settings for each scan rate, for directed scans. */
 235         struct iwl_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES];
 236 };
 237
 238 struct iwl_clip_group {
 239         /* maximum power level to prevent clipping for each rate, derived by
 240          *   us from this band's saturation power in EEPROM */
 241         const s8 clip_powers[IWL_MAX_RATES];
 242 };
 243
 244 #include "iwl-4965-rs.h"
 245
 246 #define IWL_TX_FIFO_AC0 0
 247 #define IWL_TX_FIFO_AC1 1
 248 #define IWL_TX_FIFO_AC2 2
 249 #define IWL_TX_FIFO_AC3 3
 250 #define IWL_TX_FIFO_HCCA_1      5
 251 #define IWL_TX_FIFO_HCCA_2      6
 252 #define IWL_TX_FIFO_NONE        7
 253
 254 /* Minimum number of queues. MAX_NUM is defined in hw specific files */
 255 #define IWL_MIN_NUM_QUEUES      4
 256
 257 /* Power management (not Tx power) structures */
 258
 259 struct iwl_power_vec_entry {
 260         struct iwl_powertable_cmd cmd;
 261         u8 no_dtim;
 262 };
 263 #define IWL_POWER_RANGE_0  (0)
 264 #define IWL_POWER_RANGE_1  (1)
 265
 266 #define IWL_POWER_MODE_CAM      0x00    /* Continuously Aware Mode, always on */
 267 #define IWL_POWER_INDEX_3       0x03
 268 #define IWL_POWER_INDEX_5       0x05
 269 #define IWL_POWER_AC            0x06
 270 #define IWL_POWER_BATTERY       0x07
 271 #define IWL_POWER_LIMIT         0x07
 272 #define IWL_POWER_MASK          0x0F
 273 #define IWL_POWER_ENABLED       0x10
 274 #define IWL_POWER_LEVEL(x)      ((x) & IWL_POWER_MASK)
 275
 276 struct iwl_power_mgr {
 277         spinlock_t lock;
 278         struct iwl_power_vec_entry pwr_range_0[IWL_POWER_AC];
 279         struct iwl_power_vec_entry pwr_range_1[IWL_POWER_AC];
 280         u8 active_index;
 281         u32 dtim_val;
 282 };
 283
 284 #define IEEE80211_DATA_LEN              2304
 285 #define IEEE80211_4ADDR_LEN             30
 286 #define IEEE80211_HLEN                  (IEEE80211_4ADDR_LEN)
 287 #define IEEE80211_FRAME_LEN             (IEEE80211_DATA_LEN + IEEE80211_HLEN)
 288
 289 struct iwl_frame {
 290         union {
 291                 struct ieee80211_hdr frame;
 292                 struct iwl_tx_beacon_cmd beacon;
 293                 u8 raw[IEEE80211_FRAME_LEN];
 294                 u8 cmd[360];
 295         } u;
 296         struct list_head list;
 297 };
 298
 299 #define SEQ_TO_QUEUE(x)  ((x >> 8) & 0xbf)
 300 #define QUEUE_TO_SEQ(x)  ((x & 0xbf) << 8)
 301 #define SEQ_TO_INDEX(x) (x & 0xff)
 302 #define INDEX_TO_SEQ(x) (x & 0xff)
 303 #define SEQ_HUGE_FRAME  (0x4000)
 304 #define SEQ_RX_FRAME    __constant_cpu_to_le16(0x8000)
 305 #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
 306 #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
 307 #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
 308
 309 enum {
 310         /* CMD_SIZE_NORMAL = 0, */
 311         CMD_SIZE_HUGE = (1 << 0),
 312         /* CMD_SYNC = 0, */
 313         CMD_ASYNC = (1 << 1),
 314         /* CMD_NO_SKB = 0, */
 315         CMD_WANT_SKB = (1 << 2),
 316 };
 317
 318 struct iwl_cmd;
 319 struct iwl_priv;
 320
 321 struct iwl_cmd_meta {
 322         struct iwl_cmd_meta *source;
 323         union {
 324                 struct sk_buff *skb;
 325                 int (*callback)(struct iwl_priv *priv,
 326                                 struct iwl_cmd *cmd, struct sk_buff *skb);
 327         } __attribute__ ((packed)) u;
 328
 329         /* The CMD_SIZE_HUGE flag bit indicates that the command
 330          * structure is stored at the end of the shared queue memory. */
 331         u32 flags;
 332
 333 } __attribute__ ((packed));
 334
 335 struct iwl_cmd {
 336         struct iwl_cmd_meta meta;
 337         struct iwl_cmd_header hdr;
 338         union {
 339                 struct iwl_addsta_cmd addsta;
 340                 struct iwl_led_cmd led;
 341                 u32 flags;
 342                 u8 val8;
 343                 u16 val16;
 344                 u32 val32;
 345                 struct iwl_bt_cmd bt;
 346                 struct iwl_rxon_time_cmd rxon_time;
 347                 struct iwl_powertable_cmd powertable;
 348                 struct iwl_qosparam_cmd qosparam;
 349                 struct iwl_tx_cmd tx;
 350                 struct iwl_tx_beacon_cmd tx_beacon;
 351                 struct iwl_rxon_assoc_cmd rxon_assoc;
 352                 u8 *indirect;
 353                 u8 payload[360];
 354         } __attribute__ ((packed)) cmd;
 355 } __attribute__ ((packed));
 356
 357 struct iwl_host_cmd {
 358         u8 id;
 359         u16 len;
 360         struct iwl_cmd_meta meta;
 361         const void *data;
 362 };
 363
 364 #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_cmd) - \
 365                               sizeof(struct iwl_cmd_meta))
 366
 367 /*
 368  * RX related structures and functions
 369  */
 370 #define RX_FREE_BUFFERS 64
 371 #define RX_LOW_WATERMARK 8
 372
 373 #define SUP_RATE_11A_MAX_NUM_CHANNELS  8
 374 #define SUP_RATE_11B_MAX_NUM_CHANNELS  4
 375 #define SUP_RATE_11G_MAX_NUM_CHANNELS  12
 376
 377 /**
 378  * struct iwl_rx_queue - Rx queue
 379  * @processed: Internal index to last handled Rx packet
 380  * @read: Shared index to newest available Rx buffer
 381  * @write: Shared index to oldest written Rx packet
 382  * @free_count: Number of pre-allocated buffers in rx_free
 383  * @rx_free: list of free SKBs for use
 384  * @rx_used: List of Rx buffers with no SKB
 385  * @need_update: flag to indicate we need to update read/write index
 386  *
 387  * NOTE:  rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers
 388  */
 389 struct iwl_rx_queue {
 390         __le32 *bd;
 391         dma_addr_t dma_addr;
 392         struct iwl_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
 393         struct iwl_rx_mem_buffer *queue[RX_QUEUE_SIZE];
 394         u32 processed;
 395         u32 read;
 396         u32 write;
 397         u32 free_count;
 398         struct list_head rx_free;
 399         struct list_head rx_used;
 400         int need_update;
 401         spinlock_t lock;
 402 };
 403
 404 #define IWL_SUPPORTED_RATES_IE_LEN         8
 405
 406 #define SCAN_INTERVAL 100
 407
 408 #define MAX_A_CHANNELS  252
 409 #define MIN_A_CHANNELS  7
 410
 411 #define MAX_B_CHANNELS  14
 412 #define MIN_B_CHANNELS  1
 413
 414 #define STATUS_HCMD_ACTIVE      0       /* host command in progress */
 415 #define STATUS_INT_ENABLED      1
 416 #define STATUS_RF_KILL_HW       2
 417 #define STATUS_RF_KILL_SW       3
 418 #define STATUS_INIT             4
 419 #define STATUS_ALIVE            5
 420 #define STATUS_READY            6
 421 #define STATUS_TEMPERATURE      7
 422 #define STATUS_GEO_CONFIGURED   8
 423 #define STATUS_EXIT_PENDING     9
 424 #define STATUS_IN_SUSPEND       10
 425 #define STATUS_STATISTICS       11
 426 #define STATUS_SCANNING         12
 427 #define STATUS_SCAN_ABORTING    13
 428 #define STATUS_SCAN_HW          14
 429 #define STATUS_POWER_PMI        15
 430 #define STATUS_FW_ERROR         16
 431
 432 #define MAX_TID_COUNT        9
 433
 434 #define IWL_INVALID_RATE     0xFF
 435 #define IWL_INVALID_VALUE    -1
 436
 437 #ifdef CONFIG_IWLWIFI_HT
 438 #ifdef CONFIG_IWLWIFI_HT_AGG
 439 struct iwl_ht_agg {
 440         u16 txq_id;
 441         u16 frame_count;
 442         u16 wait_for_ba;
 443         u16 start_idx;
 444         u32 bitmap0;
 445         u32 bitmap1;
 446         u32 rate_n_flags;
 447 };
 448 #endif /* CONFIG_IWLWIFI_HT_AGG */
 449 #endif /* CONFIG_IWLWIFI_HT */
 450
 451 struct iwl_tid_data {
 452         u16 seq_number;
 453 #ifdef CONFIG_IWLWIFI_HT
 454 #ifdef CONFIG_IWLWIFI_HT_AGG
 455         struct iwl_ht_agg agg;
 456 #endif  /* CONFIG_IWLWIFI_HT_AGG */
 457 #endif /* CONFIG_IWLWIFI_HT */
 458 };
 459
 460 struct iwl_hw_key {
 461         enum ieee80211_key_alg alg;
 462         int keylen;
 463         u8 key[32];
 464 };
 465
 466 union iwl_ht_rate_supp {
 467         u16 rates;
 468         struct {
 469                 u8 siso_rate;
 470                 u8 mimo_rate;
 471         };
 472 };
 473
 474 #ifdef CONFIG_IWLWIFI_HT
 475 #define CFG_HT_RX_AMPDU_FACTOR_DEF  (0x3)
 476 #define HT_IE_MAX_AMSDU_SIZE_4K     (0)
 477 #define CFG_HT_MPDU_DENSITY_2USEC   (0x5)
 478 #define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_2USEC
 479
 480 struct sta_ht_info {
 481         u8 is_ht;
 482         u16 rx_mimo_ps_mode;
 483         u16 tx_mimo_ps_mode;
 484         u16 control_channel;
 485         u8 max_amsdu_size;
 486         u8 ampdu_factor;
 487         u8 mpdu_density;
 488         u8 operating_mode;
 489         u8 supported_chan_width;
 490         u8 extension_chan_offset;
 491         u8 is_green_field;
 492         u8 sgf;
 493         u8 supp_rates[16];
 494         u8 tx_chan_width;
 495         u8 chan_width_cap;
 496 };
 497 #endif                          /*CONFIG_IWLWIFI_HT */
 498
 499 #ifdef CONFIG_IWLWIFI_QOS
 500
 501 union iwl_qos_capabity {
 502         struct {
 503                 u8 edca_count:4;        /* bit 0-3 */
 504                 u8 q_ack:1;             /* bit 4 */
 505                 u8 queue_request:1;     /* bit 5 */
 506                 u8 txop_request:1;      /* bit 6 */
 507                 u8 reserved:1;          /* bit 7 */
 508         } q_AP;
 509         struct {
 510                 u8 acvo_APSD:1;         /* bit 0 */
 511                 u8 acvi_APSD:1;         /* bit 1 */
 512                 u8 ac_bk_APSD:1;        /* bit 2 */
 513                 u8 ac_be_APSD:1;        /* bit 3 */
 514                 u8 q_ack:1;             /* bit 4 */
 515                 u8 max_len:2;           /* bit 5-6 */
 516                 u8 more_data_ack:1;     /* bit 7 */
 517         } q_STA;
 518         u8 val;
 519 };
 520
 521 /* QoS structures */
 522 struct iwl_qos_info {
 523         int qos_enable;
 524         int qos_active;
 525         union iwl_qos_capabity qos_cap;
 526         struct iwl_qosparam_cmd def_qos_parm;
 527 };
 528 #endif /*CONFIG_IWLWIFI_QOS */
 529
 530 #define STA_PS_STATUS_WAKE             0
 531 #define STA_PS_STATUS_SLEEP            1
 532
 533 struct iwl_station_entry {
 534         struct iwl_addsta_cmd sta;
 535         struct iwl_tid_data tid[MAX_TID_COUNT];
 536         u8 used;
 537         u8 ps_status;
 538         struct iwl_hw_key keyinfo;
 539 };
 540
 541 /* one for each uCode image (inst/data, boot/init/runtime) */
 542 struct fw_desc {
 543         void *v_addr;           /* access by driver */
 544         dma_addr_t p_addr;      /* access by card's busmaster DMA */
 545         u32 len;                /* bytes */
 546 };
 547
 548 /* uCode file layout */
 549 struct iwl_ucode {
 550         __le32 ver;             /* major/minor/subminor */
 551         __le32 inst_size;       /* bytes of runtime instructions */
 552         __le32 data_size;       /* bytes of runtime data */
 553         __le32 init_size;       /* bytes of initialization instructions */
 554         __le32 init_data_size;  /* bytes of initialization data */
 555         __le32 boot_size;       /* bytes of bootstrap instructions */
 556         u8 data[0];             /* data in same order as "size" elements */
 557 };
 558
 559 #define IWL_IBSS_MAC_HASH_SIZE 32
 560
 561 struct iwl_ibss_seq {
 562         u8 mac[ETH_ALEN];
 563         u16 seq_num;
 564         u16 frag_num;
 565         unsigned long packet_time;
 566         struct list_head list;
 567 };
 568
 569 struct iwl_driver_hw_info {
 570         u16 max_txq_num;
 571         u16 ac_queue_count;
 572         u16 tx_cmd_len;
 573         u16 max_rxq_size;
 574         u32 rx_buffer_size;
 575         u16 max_rxq_log;
 576         u8  max_stations;
 577         u8  bcast_sta_id;
 578         void *shared_virt;
 579         dma_addr_t shared_phys;
 580 };
 581
 582
 583 #define STA_FLG_RTS_MIMO_PROT_MSK       __constant_cpu_to_le32(1 << 17)
 584 #define STA_FLG_AGG_MPDU_8US_MSK        __constant_cpu_to_le32(1 << 18)
 585 #define STA_FLG_MAX_AGG_SIZE_POS        (19)
 586 #define STA_FLG_MAX_AGG_SIZE_MSK        __constant_cpu_to_le32(3 << 19)
 587 #define STA_FLG_FAT_EN_MSK              __constant_cpu_to_le32(1 << 21)
 588 #define STA_FLG_MIMO_DIS_MSK            __constant_cpu_to_le32(1 << 22)
 589 #define STA_FLG_AGG_MPDU_DENSITY_POS    (23)
 590 #define STA_FLG_AGG_MPDU_DENSITY_MSK    __constant_cpu_to_le32(7 << 23)
 591 #define HT_SHORT_GI_20MHZ_ONLY          (1 << 0)
 592 #define HT_SHORT_GI_40MHZ_ONLY          (1 << 1)
 593
 594
 595 #define IWL_RX_HDR(x) ((struct iwl_rx_frame_hdr *)(\
 596                        x->u.rx_frame.stats.payload + \
 597                        x->u.rx_frame.stats.phy_count))
 598 #define IWL_RX_END(x) ((struct iwl_rx_frame_end *)(\
 599                        IWL_RX_HDR(x)->payload + \
 600                        le16_to_cpu(IWL_RX_HDR(x)->len)))
 601 #define IWL_RX_STATS(x) (&x->u.rx_frame.stats)
 602 #define IWL_RX_DATA(x) (IWL_RX_HDR(x)->payload)
 603
 604
 605 /******************************************************************************
 606  *
 607  * Functions implemented in iwl-base.c which are forward declared here
 608  * for use by iwl-*.c
 609  *
 610  *****************************************************************************/
 611 struct iwl_addsta_cmd;
 612 extern int iwl_send_add_station(struct iwl_priv *priv,
 613                                 struct iwl_addsta_cmd *sta, u8 flags);
 614 extern u8 iwl_add_station(struct iwl_priv *priv, const u8 *bssid,
 615                           int is_ap, u8 flags);
 616 extern int iwl_is_network_packet(struct iwl_priv *priv,
 617                                  struct ieee80211_hdr *header);
 618 extern int iwl_power_init_handle(struct iwl_priv *priv);
 619 extern int iwl_eeprom_init(struct iwl_priv *priv);
 620 #ifdef CONFIG_IWLWIFI_DEBUG
 621 extern void iwl_report_frame(struct iwl_priv *priv,
 622                              struct iwl_rx_packet *pkt,
 623                              struct ieee80211_hdr *header, int group100);
 624 #else
 625 static inline void iwl_report_frame(struct iwl_priv *priv,
 626                                     struct iwl_rx_packet *pkt,
 627                                     struct ieee80211_hdr *header,
 628                                     int group100) {}
 629 #endif
 630 extern void iwl_handle_data_packet_monitor(struct iwl_priv *priv,
 631                                            struct iwl_rx_mem_buffer *rxb,
 632                                            void *data, short len,
 633                                            struct ieee80211_rx_status *stats,
 634                                            u16 phy_flags);
 635 extern int is_duplicate_packet(struct iwl_priv *priv, struct ieee80211_hdr
 636                                *header);
 637 extern int iwl_rx_queue_alloc(struct iwl_priv *priv);
 638 extern void iwl_rx_queue_reset(struct iwl_priv *priv,
 639                                struct iwl_rx_queue *rxq);
 640 extern int iwl_calc_db_from_ratio(int sig_ratio);
 641 extern int iwl_calc_sig_qual(int rssi_dbm, int noise_dbm);
 642 extern int iwl_tx_queue_init(struct iwl_priv *priv,
 643                              struct iwl_tx_queue *txq, int count, u32 id);
 644 extern void iwl_rx_replenish(void *data);
 645 extern void iwl_tx_queue_free(struct iwl_priv *priv, struct iwl_tx_queue *txq);
 646 extern int iwl_send_cmd_pdu(struct iwl_priv *priv, u8 id, u16 len,
 647                             const void *data);
 648 extern int __must_check iwl_send_cmd(struct iwl_priv *priv,
 649                 struct iwl_host_cmd *cmd);
 650 extern unsigned int iwl_fill_beacon_frame(struct iwl_priv *priv,
 651                                         struct ieee80211_hdr *hdr,
 652                                         const u8 *dest, int left);
 653 extern int iwl_rx_queue_update_write_ptr(struct iwl_priv *priv,
 654                                          struct iwl_rx_queue *q);
 655 extern int iwl_send_statistics_request(struct iwl_priv *priv);
 656 extern void iwl_set_decrypted_flag(struct iwl_priv *priv, struct sk_buff *skb,
 657                                    u32 decrypt_res,
 658                                    struct ieee80211_rx_status *stats);
 659 extern __le16 *ieee80211_get_qos_ctrl(struct ieee80211_hdr *hdr);
 660
 661 extern const u8 BROADCAST_ADDR[ETH_ALEN];
 662
 663 /*
 664  * Currently used by iwl-3945-rs... look at restructuring so that it doesn't
 665  * call this... todo... fix that.
 666 */
 667 extern u8 iwl_sync_station(struct iwl_priv *priv, int sta_id,
 668                            u16 tx_rate, u8 flags);
 669
 670 /******************************************************************************
 671  *
 672  * Functions implemented in iwl-[34]*.c which are forward declared here
 673  * for use by iwl-base.c
 674  *
 675  * NOTE:  The implementation of these functions are hardware specific
 676  * which is why they are in the hardware specific files (vs. iwl-base.c)
 677  *
 678  * Naming convention --
 679  * iwl_         <-- Its part of iwlwifi (should be changed to iwl_)
 680  * iwl_hw_      <-- Hardware specific (implemented in iwl-XXXX.c by all HW)
 681  * iwlXXXX_     <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
 682  * iwl_bg_      <-- Called from work queue context
 683  * iwl_mac_     <-- mac80211 callback
 684  *
 685  ****************************************************************************/
 686 extern void iwl_hw_rx_handler_setup(struct iwl_priv *priv);
 687 extern void iwl_hw_setup_deferred_work(struct iwl_priv *priv);
 688 extern void iwl_hw_cancel_deferred_work(struct iwl_priv *priv);
 689 extern int iwl_hw_rxq_stop(struct iwl_priv *priv);
 690 extern int iwl_hw_set_hw_setting(struct iwl_priv *priv);
 691 extern int iwl_hw_nic_init(struct iwl_priv *priv);
 692 extern int iwl_hw_nic_stop_master(struct iwl_priv *priv);
 693 extern void iwl_hw_txq_ctx_free(struct iwl_priv *priv);
 694 extern void iwl_hw_txq_ctx_stop(struct iwl_priv *priv);
 695 extern int iwl_hw_nic_reset(struct iwl_priv *priv);
 696 extern int iwl_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv, void *tfd,
 697                                         dma_addr_t addr, u16 len);
 698 extern int iwl_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq);
 699 extern int iwl_hw_get_temperature(struct iwl_priv *priv);
 700 extern int iwl_hw_tx_queue_init(struct iwl_priv *priv,
 701                                 struct iwl_tx_queue *txq);
 702 extern unsigned int iwl_hw_get_beacon_cmd(struct iwl_priv *priv,
 703                                  struct iwl_frame *frame, u8 rate);
 704 extern int iwl_hw_get_rx_read(struct iwl_priv *priv);
 705 extern void iwl_hw_build_tx_cmd_rate(struct iwl_priv *priv,
 706                                      struct iwl_cmd *cmd,
 707                                      struct ieee80211_tx_control *ctrl,
 708                                      struct ieee80211_hdr *hdr,
 709                                      int sta_id, int tx_id);
 710 extern int iwl_hw_reg_send_txpower(struct iwl_priv *priv);
 711 extern int iwl_hw_reg_set_txpower(struct iwl_priv *priv, s8 power);
 712 extern void iwl_hw_rx_statistics(struct iwl_priv *priv,
 713                                  struct iwl_rx_mem_buffer *rxb);
 714 extern void iwl_disable_events(struct iwl_priv *priv);
 715 extern int iwl4965_get_temperature(const struct iwl_priv *priv);
 716
 717 /**
 718  * iwl_hw_find_station - Find station id for a given BSSID
 719  * @bssid: MAC address of station ID to find
 720  *
 721  * NOTE:  This should not be hardware specific but the code has
 722  * not yet been merged into a single common layer for managing the
 723  * station tables.
 724  */
 725 extern u8 iwl_hw_find_station(struct iwl_priv *priv, const u8 *bssid);
 726
 727 extern int iwl_hw_channel_switch(struct iwl_priv *priv, u16 channel);
 728 extern int iwl_tx_queue_reclaim(struct iwl_priv *priv, int txq_id, int index);
 729
 730 struct iwl_priv;
 731 struct sta_ht_info;
 732
 733 /*
 734  * Forward declare iwl-4965.c functions for iwl-base.c
 735  */
 736 extern int iwl_eeprom_acquire_semaphore(struct iwl_priv *priv);
 737 extern void iwl_eeprom_release_semaphore(struct iwl_priv *priv);
 738
 739 extern int iwl4965_tx_queue_update_wr_ptr(struct iwl_priv *priv,
 740                                           struct iwl_tx_queue *txq,
 741                                           u16 byte_cnt);
 742 extern void iwl4965_add_station(struct iwl_priv *priv, const u8 *addr,
 743                                 int is_ap);
 744 extern void iwl4965_set_rxon_ht(struct iwl_priv *priv,
 745                                 struct sta_ht_info *ht_info);
 746
 747 extern void iwl4965_set_rxon_chain(struct iwl_priv *priv);
 748 extern int iwl4965_tx_cmd(struct iwl_priv *priv, struct iwl_cmd *out_cmd,
 749                           u8 sta_id, dma_addr_t txcmd_phys,
 750                           struct ieee80211_hdr *hdr, u8 hdr_len,
 751                           struct ieee80211_tx_control *ctrl, void *sta_in);
 752 extern int iwl4965_init_hw_rates(struct iwl_priv *priv,
 753                                  struct ieee80211_rate *rates);
 754 extern int iwl4965_alive_notify(struct iwl_priv *priv);
 755 extern void iwl4965_update_rate_scaling(struct iwl_priv *priv, u8 mode);
 756 extern void iwl4965_set_ht_add_station(struct iwl_priv *priv, u8 index);
 757
 758 extern void iwl4965_chain_noise_reset(struct iwl_priv *priv);
 759 extern void iwl4965_init_sensitivity(struct iwl_priv *priv, u8 flags,
 760                                      u8 force);
 761 extern int iwl4965_set_fat_chan_info(struct iwl_priv *priv, int phymode,
 762                                 u16 channel,
 763                                 const struct iwl_eeprom_channel *eeprom_ch,
 764                                 u8 fat_extension_channel);
 765 extern void iwl4965_rf_kill_ct_config(struct iwl_priv *priv);
 766
 767 #ifdef CONFIG_IWLWIFI_HT
 768 #ifdef CONFIG_IWLWIFI_HT_AGG
 769 extern int iwl_mac_ht_tx_agg_start(struct ieee80211_hw *hw, u8 *da,
 770                                    u16 tid, u16 *start_seq_num);
 771 extern int iwl_mac_ht_rx_agg_start(struct ieee80211_hw *hw, u8 *da,
 772                                    u16 tid, u16 start_seq_num);
 773 extern int iwl_mac_ht_rx_agg_stop(struct ieee80211_hw *hw, u8 *da,
 774                                   u16 tid, int generator);
 775 extern int iwl_mac_ht_tx_agg_stop(struct ieee80211_hw *hw, u8 *da,
 776                                   u16 tid, int generator);
 777 extern void iwl4965_turn_off_agg(struct iwl_priv *priv, u8 tid);
 778 #endif /* CONFIG_IWLWIFI_HT_AGG */
 779 #endif /*CONFIG_IWLWIFI_HT */
 780 /* Structures, enum, and defines specific to the 4965 */
 781
 782 #define IWL4965_KW_SIZE 0x1000  /*4k */
 783
 784 struct iwl_kw {
 785         dma_addr_t dma_addr;
 786         void *v_addr;
 787         size_t size;
 788 };
 789
 790 #define TID_QUEUE_CELL_SPACING 50       /*mS */
 791 #define TID_QUEUE_MAX_SIZE     20
 792 #define TID_ROUND_VALUE        5        /* mS */
 793 #define TID_MAX_LOAD_COUNT     8
 794
 795 #define TID_MAX_TIME_DIFF ((TID_QUEUE_MAX_SIZE - 1) * TID_QUEUE_CELL_SPACING)
 796 #define TIME_WRAP_AROUND(x, y) (((y) > (x)) ? (y) - (x) : (0-(x)) + (y))
 797
 798 #define TID_ALL_ENABLED         0x7f
 799 #define TID_ALL_SPECIFIED       0xff
 800 #define TID_AGG_TPT_THREHOLD    0x0
 801
 802 #define IWL_CHANNEL_WIDTH_20MHZ   0
 803 #define IWL_CHANNEL_WIDTH_40MHZ   1
 804
 805 #define IWL_MIMO_PS_STATIC        0
 806 #define IWL_MIMO_PS_NONE          3
 807 #define IWL_MIMO_PS_DYNAMIC       1
 808 #define IWL_MIMO_PS_INVALID       2
 809
 810 #define IWL_OPERATION_MODE_AUTO     0
 811 #define IWL_OPERATION_MODE_HT_ONLY  1
 812 #define IWL_OPERATION_MODE_MIXED    2
 813 #define IWL_OPERATION_MODE_20MHZ    3
 814
 815 #define IWL_EXT_CHANNEL_OFFSET_AUTO   0
 816 #define IWL_EXT_CHANNEL_OFFSET_ABOVE  1
 817 #define IWL_EXT_CHANNEL_OFFSET_       2
 818 #define IWL_EXT_CHANNEL_OFFSET_BELOW  3
 819 #define IWL_EXT_CHANNEL_OFFSET_MAX    4
 820
 821 #define NRG_NUM_PREV_STAT_L     20
 822 #define NUM_RX_CHAINS           (3)
 823
 824 #define TX_POWER_IWL_ILLEGAL_VDET    -100000
 825 #define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
 826 #define TX_POWER_IWL_CLOSED_LOOP_MIN_POWER 18
 827 #define TX_POWER_IWL_CLOSED_LOOP_MAX_POWER 34
 828 #define TX_POWER_IWL_VDET_SLOPE_BELOW_NOMINAL 17
 829 #define TX_POWER_IWL_VDET_SLOPE_ABOVE_NOMINAL 20
 830 #define TX_POWER_IWL_NOMINAL_POWER            26
 831 #define TX_POWER_IWL_CLOSED_LOOP_ITERATION_LIMIT 1
 832 #define TX_POWER_IWL_VOLTAGE_CODES_PER_03V       7
 833 #define TX_POWER_IWL_DEGREES_PER_VDET_CODE       11
 834 #define IWL_TX_POWER_MAX_NUM_PA_MEASUREMENTS 1
 835 #define IWL_TX_POWER_CCK_COMPENSATION_B_STEP (9)
 836 #define IWL_TX_POWER_CCK_COMPENSATION_C_STEP (5)
 837
 838 struct iwl_traffic_load {
 839         unsigned long time_stamp;
 840         u32 packet_count[TID_QUEUE_MAX_SIZE];
 841         u8 queue_count;
 842         u8 head;
 843         u32 total;
 844 };
 845
 846 #ifdef CONFIG_IWLWIFI_HT_AGG
 847 struct iwl_agg_control {
 848         unsigned long next_retry;
 849         u32 wait_for_agg_status;
 850         u32 tid_retry;
 851         u32 requested_ba;
 852         u32 granted_ba;
 853         u8 auto_agg;
 854         u32 tid_traffic_load_threshold;
 855         u32 ba_timeout;
 856         struct iwl_traffic_load traffic_load[TID_MAX_LOAD_COUNT];
 857 };
 858 #endif                          /*CONFIG_IWLWIFI_HT_AGG */
 859
 860 struct iwl_lq_mngr {
 861 #ifdef CONFIG_IWLWIFI_HT_AGG
 862         struct iwl_agg_control agg_ctrl;
 863 #endif
 864         spinlock_t lock;
 865         s32 max_window_size;
 866         s32 *expected_tpt;
 867         u8 *next_higher_rate;
 868         u8 *next_lower_rate;
 869         unsigned long stamp;
 870         unsigned long stamp_last;
 871         u32 flush_time;
 872         u32 tx_packets;
 873         u8 lq_ready;
 874 };
 875
 876
 877 /* Sensitivity and chain noise calibration */
 878 #define INTERFERENCE_DATA_AVAILABLE     __constant_cpu_to_le32(1)
 879 #define INITIALIZATION_VALUE            0xFFFF
 880 #define CAL_NUM_OF_BEACONS              20
 881 #define MAXIMUM_ALLOWED_PATHLOSS        15
 882
 883 /* Param table within SENSITIVITY_CMD */
 884 #define HD_MIN_ENERGY_CCK_DET_INDEX                 (0)
 885 #define HD_MIN_ENERGY_OFDM_DET_INDEX                (1)
 886 #define HD_AUTO_CORR32_X1_TH_ADD_MIN_INDEX          (2)
 887 #define HD_AUTO_CORR32_X1_TH_ADD_MIN_MRC_INDEX      (3)
 888 #define HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_INDEX      (4)
 889 #define HD_AUTO_CORR32_X4_TH_ADD_MIN_INDEX          (5)
 890 #define HD_AUTO_CORR32_X4_TH_ADD_MIN_MRC_INDEX      (6)
 891 #define HD_BARKER_CORR_TH_ADD_MIN_INDEX             (7)
 892 #define HD_BARKER_CORR_TH_ADD_MIN_MRC_INDEX         (8)
 893 #define HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX          (9)
 894 #define HD_OFDM_ENERGY_TH_IN_INDEX                  (10)
 895
 896 #define SENSITIVITY_CMD_CONTROL_DEFAULT_TABLE   __constant_cpu_to_le16(0)
 897 #define SENSITIVITY_CMD_CONTROL_WORK_TABLE      __constant_cpu_to_le16(1)
 898
 899 #define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
 900
 901 #define MAX_FA_OFDM  50
 902 #define MIN_FA_OFDM  5
 903 #define MAX_FA_CCK   50
 904 #define MIN_FA_CCK   5
 905
 906 #define NRG_MIN_CCK  97
 907 #define NRG_MAX_CCK  0
 908
 909 #define AUTO_CORR_MIN_OFDM        85
 910 #define AUTO_CORR_MIN_OFDM_MRC    170
 911 #define AUTO_CORR_MIN_OFDM_X1     105
 912 #define AUTO_CORR_MIN_OFDM_MRC_X1 220
 913 #define AUTO_CORR_MAX_OFDM        120
 914 #define AUTO_CORR_MAX_OFDM_MRC    210
 915 #define AUTO_CORR_MAX_OFDM_X1     140
 916 #define AUTO_CORR_MAX_OFDM_MRC_X1 270
 917 #define AUTO_CORR_STEP_OFDM       1
 918
 919 #define AUTO_CORR_MIN_CCK      (125)
 920 #define AUTO_CORR_MAX_CCK      (200)
 921 #define AUTO_CORR_MIN_CCK_MRC  200
 922 #define AUTO_CORR_MAX_CCK_MRC  400
 923 #define AUTO_CORR_STEP_CCK     3
 924 #define AUTO_CORR_MAX_TH_CCK   160
 925
 926 #define NRG_ALG                0
 927 #define AUTO_CORR_ALG          1
 928 #define NRG_DIFF               2
 929 #define NRG_STEP_CCK           2
 930 #define NRG_MARGIN             8
 931 #define MAX_NUMBER_CCK_NO_FA 100
 932
 933 #define AUTO_CORR_CCK_MIN_VAL_DEF    (125)
 934
 935 #define CHAIN_A             0
 936 #define CHAIN_B             1
 937 #define CHAIN_C             2
 938 #define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
 939 #define ALL_BAND_FILTER                 0xFF00
 940 #define IN_BAND_FILTER                  0xFF
 941 #define MIN_AVERAGE_NOISE_MAX_VALUE     0xFFFFFFFF
 942
 943 enum iwl_false_alarm_state {
 944         IWL_FA_TOO_MANY = 0,
 945         IWL_FA_TOO_FEW = 1,
 946         IWL_FA_GOOD_RANGE = 2,
 947 };
 948
 949 enum iwl_chain_noise_state {
 950         IWL_CHAIN_NOISE_ALIVE = 0,  /* must be 0 */
 951         IWL_CHAIN_NOISE_ACCUMULATE = 1,
 952         IWL_CHAIN_NOISE_CALIBRATED = 2,
 953 };
 954
 955 enum iwl_sensitivity_state {
 956         IWL_SENS_CALIB_ALLOWED = 0,
 957         IWL_SENS_CALIB_NEED_REINIT = 1,
 958 };
 959
 960 enum iwl_calib_enabled_state {
 961         IWL_CALIB_DISABLED = 0,  /* must be 0 */
 962         IWL_CALIB_ENABLED = 1,
 963 };
 964
 965 struct statistics_general_data {
 966         u32 beacon_silence_rssi_a;
 967         u32 beacon_silence_rssi_b;
 968         u32 beacon_silence_rssi_c;
 969         u32 beacon_energy_a;
 970         u32 beacon_energy_b;
 971         u32 beacon_energy_c;
 972 };
 973
 974 /* Sensitivity calib data */
 975 struct iwl_sensitivity_data {
 976         u32 auto_corr_ofdm;
 977         u32 auto_corr_ofdm_mrc;
 978         u32 auto_corr_ofdm_x1;
 979         u32 auto_corr_ofdm_mrc_x1;
 980         u32 auto_corr_cck;
 981         u32 auto_corr_cck_mrc;
 982
 983         u32 last_bad_plcp_cnt_ofdm;
 984         u32 last_fa_cnt_ofdm;
 985         u32 last_bad_plcp_cnt_cck;
 986         u32 last_fa_cnt_cck;
 987
 988         u32 nrg_curr_state;
 989         u32 nrg_prev_state;
 990         u32 nrg_value[10];
 991         u8  nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
 992         u32 nrg_silence_ref;
 993         u32 nrg_energy_idx;
 994         u32 nrg_silence_idx;
 995         u32 nrg_th_cck;
 996         s32 nrg_auto_corr_silence_diff;
 997         u32 num_in_cck_no_fa;
 998         u32 nrg_th_ofdm;
 999
1000         u8 state;
1001 };
1002
1003 /* Chain noise (differential Rx gain) calib data */
1004 struct iwl_chain_noise_data {
1005         u8 state;
1006         u16 beacon_count;
1007         u32 chain_noise_a;
1008         u32 chain_noise_b;
1009         u32 chain_noise_c;
1010         u32 chain_signal_a;
1011         u32 chain_signal_b;
1012         u32 chain_signal_c;
1013         u8 disconn_array[NUM_RX_CHAINS];
1014         u8 delta_gain_code[NUM_RX_CHAINS];
1015         u8 radio_write;
1016 };
1017
1018 /* IWL4965 */
1019 #define RATE_MCS_CODE_MSK 0x7
1020 #define RATE_MCS_MIMO_POS 3
1021 #define RATE_MCS_MIMO_MSK 0x8
1022 #define RATE_MCS_HT_DUP_POS 5
1023 #define RATE_MCS_HT_DUP_MSK 0x20
1024 #define RATE_MCS_FLAGS_POS 8
1025 #define RATE_MCS_HT_POS 8
1026 #define RATE_MCS_HT_MSK 0x100
1027 #define RATE_MCS_CCK_POS 9
1028 #define RATE_MCS_CCK_MSK 0x200
1029 #define RATE_MCS_GF_POS 10
1030 #define RATE_MCS_GF_MSK 0x400
1031
1032 #define RATE_MCS_FAT_POS 11
1033 #define RATE_MCS_FAT_MSK 0x800
1034 #define RATE_MCS_DUP_POS 12
1035 #define RATE_MCS_DUP_MSK 0x1000
1036 #define RATE_MCS_SGI_POS 13
1037 #define RATE_MCS_SGI_MSK 0x2000
1038
1039 #define EEPROM_SEM_TIMEOUT 10
1040 #define EEPROM_SEM_RETRY_LIMIT 1000
1041
1042
1043 #ifdef CONFIG_IWLWIFI_SPECTRUM_MEASUREMENT
1044
1045 enum {
1046         MEASUREMENT_READY = (1 << 0),
1047         MEASUREMENT_ACTIVE = (1 << 1),
1048 };
1049
1050 #endif
1051
1052 struct iwl_priv {
1053
1054         /* ieee device used by generic ieee processing code */
1055         struct ieee80211_hw *hw;
1056         struct ieee80211_channel *ieee_channels;
1057         struct ieee80211_rate *ieee_rates;
1058
1059         /* temporary frame storage list */
1060         struct list_head free_frames;
1061         int frames_count;
1062
1063         u8 phymode;
1064         int alloc_rxb_skb;
1065
1066         void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
1067                                        struct iwl_rx_mem_buffer *rxb);
1068
1069         const struct ieee80211_hw_mode *modes;
1070
1071 #ifdef CONFIG_IWLWIFI_SPECTRUM_MEASUREMENT
1072         /* spectrum measurement report caching */
1073         struct iwl_spectrum_notification measure_report;
1074         u8 measurement_status;
1075 #endif
1076         /* ucode beacon time */
1077         u32 ucode_beacon_time;
1078
1079         /* we allocate array of iwl_channel_info for NIC's valid channels.
1080          *    Access via channel # using indirect index array */
1081         struct iwl_channel_info *channel_info;  /* channel info array */
1082         u8 channel_count;       /* # of channels */
1083
1084         /* each calibration channel group in the EEPROM has a derived
1085          * clip setting for each rate. */
1086         const struct iwl_clip_group clip_groups[5];
1087
1088         /* thermal calibration */
1089         s32 temperature;        /* degrees Kelvin */
1090         s32 last_temperature;
1091
1092         /* Scan related variables */
1093         unsigned long last_scan_jiffies;
1094         unsigned long scan_start;
1095         unsigned long scan_pass_start;
1096         unsigned long scan_start_tsf;
1097         int scan_bands;
1098         int one_direct_scan;
1099         u8 direct_ssid_len;
1100         u8 direct_ssid[IW_ESSID_MAX_SIZE];
1101         struct iwl_scan_cmd *scan;
1102         u8 only_active_channel;
1103
1104         /* spinlock */
1105         spinlock_t lock;        /* protect general shared data */
1106         spinlock_t hcmd_lock;   /* protect hcmd */
1107         struct mutex mutex;
1108
1109         /* basic pci-network driver stuff */
1110         struct pci_dev *pci_dev;
1111
1112         /* pci hardware address support */
1113         void __iomem *hw_base;
1114
1115         /* uCode images, save to reload in case of failure */
1116         struct fw_desc ucode_code;      /* runtime inst */
1117         struct fw_desc ucode_data;      /* runtime data original */
1118         struct fw_desc ucode_data_backup;       /* runtime data save/restore */
1119         struct fw_desc ucode_init;      /* initialization inst */
1120         struct fw_desc ucode_init_data; /* initialization data */
1121         struct fw_desc ucode_boot;      /* bootstrap inst */
1122
1123
1124         struct iwl_rxon_time_cmd rxon_timing;
1125
1126         /* We declare this const so it can only be
1127          * changed via explicit cast within the
1128          * routines that actually update the physical
1129          * hardware */
1130         const struct iwl_rxon_cmd active_rxon;
1131         struct iwl_rxon_cmd staging_rxon;
1132
1133         int error_recovering;
1134         struct iwl_rxon_cmd recovery_rxon;
1135
1136         /* 1st responses from initialize and runtime uCode images.
1137          * 4965's initialize alive response contains some calibration data. */
1138         struct iwl_init_alive_resp card_alive_init;
1139         struct iwl_alive_resp card_alive;
1140
1141 #ifdef LED
1142         /* LED related variables */
1143         struct iwl_activity_blink activity;
1144         unsigned long led_packets;
1145         int led_state;
1146 #endif
1147
1148         u16 active_rate;
1149         u16 active_rate_basic;
1150
1151         u8 call_post_assoc_from_beacon;
1152         u8 assoc_station_added;
1153         u8 use_ant_b_for_management_frame;      /* Tx antenna selection */
1154         /* HT variables */
1155         u8 is_dup;
1156         u8 is_ht_enabled;
1157         u8 channel_width;       /* 0=20MHZ, 1=40MHZ */
1158         u8 current_channel_width;
1159         u8 valid_antenna;       /* Bit mask of antennas actually connected */
1160 #ifdef CONFIG_IWLWIFI_SENSITIVITY
1161         struct iwl_sensitivity_data sensitivity_data;
1162         struct iwl_chain_noise_data chain_noise_data;
1163         u8 start_calib;
1164         __le16 sensitivity_tbl[HD_TABLE_SIZE];
1165 #endif /*CONFIG_IWLWIFI_SENSITIVITY*/
1166
1167 #ifdef CONFIG_IWLWIFI_HT
1168         struct sta_ht_info current_assoc_ht;
1169 #endif
1170         u8 active_rate_ht[2];
1171         u8 last_phy_res[100];
1172
1173         /* Rate scaling data */
1174         struct iwl_lq_mngr lq_mngr;
1175
1176         /* Rate scaling data */
1177         s8 data_retry_limit;
1178         u8 retry_rate;
1179
1180         wait_queue_head_t wait_command_queue;
1181
1182         int activity_timer_active;
1183
1184         /* Rx and Tx DMA processing queues */
1185         struct iwl_rx_queue rxq;
1186         struct iwl_tx_queue txq[IWL_MAX_NUM_QUEUES];
1187         unsigned long txq_ctx_active_msk;
1188         struct iwl_kw kw;       /* keep warm address */
1189         u32 scd_base_addr;      /* scheduler sram base address */
1190
1191         unsigned long status;
1192         u32 config;
1193
1194         int last_rx_rssi;       /* From Rx packet statisitics */
1195         int last_rx_noise;      /* From beacon statistics */
1196
1197         struct iwl_power_mgr power_data;
1198
1199         struct iwl_notif_statistics statistics;
1200         unsigned long last_statistics_time;
1201
1202         /* context information */
1203         u8 essid[IW_ESSID_MAX_SIZE];
1204         u8 essid_len;
1205         u16 rates_mask;
1206
1207         u32 power_mode;
1208         u32 antenna;
1209         u8 bssid[ETH_ALEN];
1210         u16 rts_threshold;
1211         u8 mac_addr[ETH_ALEN];
1212
1213         /*station table variables */
1214         spinlock_t sta_lock;
1215         int num_stations;
1216         struct iwl_station_entry stations[IWL_STATION_COUNT];
1217
1218         /* Indication if ieee80211_ops->open has been called */
1219         int is_open;
1220
1221         u8 mac80211_registered;
1222         int is_abg;
1223
1224         u32 notif_missed_beacons;
1225
1226         /* Rx'd packet timing information */
1227         u32 last_beacon_time;
1228         u64 last_tsf;
1229
1230         /* Duplicate packet detection */
1231         u16 last_seq_num;
1232         u16 last_frag_num;
1233         unsigned long last_packet_time;
1234         struct list_head ibss_mac_hash[IWL_IBSS_MAC_HASH_SIZE];
1235
1236         /* eeprom */
1237         struct iwl_eeprom eeprom;
1238
1239         int iw_mode;
1240
1241         struct sk_buff *ibss_beacon;
1242
1243         /* Last Rx'd beacon timestamp */
1244         u32 timestamp0;
1245         u32 timestamp1;
1246         u16 beacon_int;
1247         struct iwl_driver_hw_info hw_setting;
1248         int interface_id;
1249
1250         /* Current association information needed to configure the
1251          * hardware */
1252         u16 assoc_id;
1253         u16 assoc_capability;
1254         u8 ps_mode;
1255
1256 #ifdef CONFIG_IWLWIFI_QOS
1257         struct iwl_qos_info qos_data;
1258 #endif /*CONFIG_IWLWIFI_QOS */
1259
1260         struct workqueue_struct *workqueue;
1261
1262         struct work_struct up;
1263         struct work_struct restart;
1264         struct work_struct calibrated_work;
1265         struct work_struct scan_completed;
1266         struct work_struct rx_replenish;
1267         struct work_struct rf_kill;
1268         struct work_struct abort_scan;
1269         struct work_struct update_link_led;
1270         struct work_struct auth_work;
1271         struct work_struct report_work;
1272         struct work_struct request_scan;
1273         struct work_struct beacon_update;
1274
1275         struct tasklet_struct irq_tasklet;
1276
1277         struct delayed_work init_alive_start;
1278         struct delayed_work alive_start;
1279         struct delayed_work activity_timer;
1280         struct delayed_work thermal_periodic;
1281         struct delayed_work gather_stats;
1282         struct delayed_work scan_check;
1283         struct delayed_work post_associate;
1284
1285 #define IWL_DEFAULT_TX_POWER 0x0F
1286         s8 user_txpower_limit;
1287         s8 max_channel_txpower_limit;
1288
1289 #ifdef CONFIG_PM
1290         u32 pm_state[16];
1291 #endif
1292
1293 #ifdef CONFIG_IWLWIFI_DEBUG
1294         /* debugging info */
1295         u32 framecnt_to_us;
1296         atomic_t restrict_refcnt;
1297 #endif
1298
1299         struct work_struct txpower_work;
1300 #ifdef CONFIG_IWLWIFI_SENSITIVITY
1301         struct work_struct sensitivity_work;
1302 #endif
1303         struct work_struct statistics_work;
1304         struct timer_list statistics_periodic;
1305
1306 #ifdef CONFIG_IWLWIFI_HT_AGG
1307         struct work_struct agg_work;
1308 #endif
1309 };                              /*iwl_priv */
1310
1311 static inline int iwl_is_associated(struct iwl_priv *priv)
1312 {
1313         return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
1314 }
1315
1316 static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
1317 {
1318         if (ch_info == NULL)
1319                 return 0;
1320         return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
1321 }
1322
1323 static inline int is_channel_narrow(const struct iwl_channel_info *ch_info)
1324 {
1325         return (ch_info->flags & EEPROM_CHANNEL_NARROW) ? 1 : 0;
1326 }
1327
1328 static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
1329 {
1330         return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
1331 }
1332
1333 static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
1334 {
1335         return ch_info->phymode == MODE_IEEE80211A;
1336 }
1337
1338 static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
1339 {
1340         return ((ch_info->phymode == MODE_IEEE80211B) ||
1341                 (ch_info->phymode == MODE_IEEE80211G));
1342 }
1343
1344 static inline int is_channel_passive(const struct iwl_channel_info *ch)
1345 {
1346         return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1347 }
1348
1349 static inline int is_channel_ibss(const struct iwl_channel_info *ch)
1350 {
1351         return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1352 }
1353
1354 extern const struct iwl_channel_info *iwl_get_channel_info(
1355         const struct iwl_priv *priv, int phymode, u16 channel);
1356
1357 /* Requires full declaration of iwl_priv before including */
1358 #include "iwl-4965-io.h"
1359
1360 #endif                          /* __iwl_4965_h__ */