drivers/net/wireless/iwlwifi/iwl-3945.h

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2003 - 2008 Intel Corporation. All rights reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of version 2 of the GNU General Public License as
   7  * published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12  * more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along with
  15  * this program; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
  17  *
  18  * The full GNU General Public License is included in this distribution in the
  19  * file called LICENSE.
  20  *
  21  * Contact Information:
  22  * James P. Ketrenos <ipw2100-admin@linux.intel.com>
  23  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  24  *
  25  *****************************************************************************/
  26 /*
  27  * Please use this file (iwl-3945.h) for driver implementation definitions.
  28  * Please use iwl-3945-commands.h for uCode API definitions.
  29  * Please use iwl-3945-hw.h for hardware-related definitions.
  30  */
  31
  32 #ifndef __iwl_3945_h__
  33 #define __iwl_3945_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 /*used for rfkill*/
  40 #include <linux/rfkill.h>
  41 #include <linux/input.h>
  42
  43 /* Hardware specific file defines the PCI IDs table for that hardware module */
  44 extern struct pci_device_id iwl3945_hw_card_ids[];
  45
  46 #define DRV_NAME        "iwl3945"
  47 #include "iwl-csr.h"
  48 #include "iwl-prph.h"
  49 #include "iwl-3945-hw.h"
  50 #include "iwl-3945-debug.h"
  51 #include "iwl-3945-led.h"
  52
  53 /* Change firmware file name, using "-" and incrementing number,
  54  *   *only* when uCode interface or architecture changes so that it
  55  *   is not compatible with earlier drivers.
  56  * This number will also appear in << 8 position of 1st dword of uCode file */
  57 #define IWL3945_UCODE_API "-1"
  58
  59 /* Default noise level to report when noise measurement is not available.
  60  *   This may be because we're:
  61  *   1)  Not associated (4965, no beacon statistics being sent to driver)
  62  *   2)  Scanning (noise measurement does not apply to associated channel)
  63  *   3)  Receiving CCK (3945 delivers noise info only for OFDM frames)
  64  * Use default noise value of -127 ... this is below the range of measurable
  65  *   Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
  66  *   Also, -127 works better than 0 when averaging frames with/without
  67  *   noise info (e.g. averaging might be done in app); measured dBm values are
  68  *   always negative ... using a negative value as the default keeps all
  69  *   averages within an s8's (used in some apps) range of negative values. */
  70 #define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
  71
  72 /* Module parameters accessible from iwl-*.c */
  73 extern int iwl3945_param_hwcrypto;
  74 extern int iwl3945_param_queues_num;
  75
  76 struct iwl3945_sta_priv {
  77         struct iwl3945_rs_sta *rs_sta;
  78 };
  79
  80 enum iwl3945_antenna {
  81         IWL_ANTENNA_DIVERSITY,
  82         IWL_ANTENNA_MAIN,
  83         IWL_ANTENNA_AUX
  84 };
  85
  86 /*
  87  * RTS threshold here is total size [2347] minus 4 FCS bytes
  88  * Per spec:
  89  *   a value of 0 means RTS on all data/management packets
  90  *   a value > max MSDU size means no RTS
  91  * else RTS for data/management frames where MPDU is larger
  92  *   than RTS value.
  93  */
  94 #define IWL_RX_BUF_SIZE           3000U
  95 #define DEFAULT_RTS_THRESHOLD     2347U
  96 #define MIN_RTS_THRESHOLD         0U
  97 #define MAX_RTS_THRESHOLD         2347U
  98 #define MAX_MSDU_SIZE             2304U
  99 #define MAX_MPDU_SIZE             2346U
 100 #define DEFAULT_BEACON_INTERVAL   100U
 101 #define DEFAULT_SHORT_RETRY_LIMIT 7U
 102 #define DEFAULT_LONG_RETRY_LIMIT  4U
 103
 104 struct iwl3945_rx_mem_buffer {
 105         dma_addr_t dma_addr;
 106         struct sk_buff *skb;
 107         struct list_head list;
 108 };
 109
 110 /*
 111  * Generic queue structure
 112  *
 113  * Contains common data for Rx and Tx queues
 114  */
 115 struct iwl3945_queue {
 116         int n_bd;              /* number of BDs in this queue */
 117         int write_ptr;       /* 1-st empty entry (index) host_w*/
 118         int read_ptr;         /* last used entry (index) host_r*/
 119         dma_addr_t dma_addr;   /* physical addr for BD's */
 120         int n_window;          /* safe queue window */
 121         u32 id;
 122         int low_mark;          /* low watermark, resume queue if free
 123                                 * space more than this */
 124         int high_mark;         /* high watermark, stop queue if free
 125                                 * space less than this */
 126 } __attribute__ ((packed));
 127
 128 int iwl3945_queue_space(const struct iwl3945_queue *q);
 129 int iwl3945_x2_queue_used(const struct iwl3945_queue *q, int i);
 130
 131 #define MAX_NUM_OF_TBS          (20)
 132
 133 /* One for each TFD */
 134 struct iwl3945_tx_info {
 135         struct sk_buff *skb[MAX_NUM_OF_TBS];
 136 };
 137
 138 /**
 139  * struct iwl3945_tx_queue - Tx Queue for DMA
 140  * @q: generic Rx/Tx queue descriptor
 141  * @bd: base of circular buffer of TFDs
 142  * @cmd: array of command/Tx buffers
 143  * @dma_addr_cmd: physical address of cmd/tx buffer array
 144  * @txb: array of per-TFD driver data
 145  * @need_update: indicates need to update read/write index
 146  *
 147  * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
 148  * descriptors) and required locking structures.
 149  */
 150 struct iwl3945_tx_queue {
 151         struct iwl3945_queue q;
 152         struct iwl3945_tfd_frame *bd;
 153         struct iwl3945_cmd *cmd;
 154         dma_addr_t dma_addr_cmd;
 155         struct iwl3945_tx_info *txb;
 156         int need_update;
 157         int active;
 158 };
 159
 160 #define IWL_NUM_SCAN_RATES         (2)
 161
 162 struct iwl3945_channel_tgd_info {
 163         u8 type;
 164         s8 max_power;
 165 };
 166
 167 struct iwl3945_channel_tgh_info {
 168         s64 last_radar_time;
 169 };
 170
 171 /* current Tx power values to use, one for each rate for each channel.
 172  * requested power is limited by:
 173  * -- regulatory EEPROM limits for this channel
 174  * -- hardware capabilities (clip-powers)
 175  * -- spectrum management
 176  * -- user preference (e.g. iwconfig)
 177  * when requested power is set, base power index must also be set. */
 178 struct iwl3945_channel_power_info {
 179         struct iwl3945_tx_power tpc;    /* actual radio and DSP gain settings */
 180         s8 power_table_index;   /* actual (compenst'd) index into gain table */
 181         s8 base_power_index;    /* gain index for power at factory temp. */
 182         s8 requested_power;     /* power (dBm) requested for this chnl/rate */
 183 };
 184
 185 /* current scan Tx power values to use, one for each scan rate for each
 186  * channel. */
 187 struct iwl3945_scan_power_info {
 188         struct iwl3945_tx_power tpc;    /* actual radio and DSP gain settings */
 189         s8 power_table_index;   /* actual (compenst'd) index into gain table */
 190         s8 requested_power;     /* scan pwr (dBm) requested for chnl/rate */
 191 };
 192
 193 /*
 194  * One for each channel, holds all channel setup data
 195  * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
 196  *     with one another!
 197  */
 198 #define IWL4965_MAX_RATE (33)
 199
 200 struct iwl3945_channel_info {
 201         struct iwl3945_channel_tgd_info tgd;
 202         struct iwl3945_channel_tgh_info tgh;
 203         struct iwl3945_eeprom_channel eeprom;   /* EEPROM regulatory limit */
 204         struct iwl3945_eeprom_channel fat_eeprom;       /* EEPROM regulatory limit for
 205                                                  * FAT channel */
 206
 207         u8 channel;       /* channel number */
 208         u8 flags;         /* flags copied from EEPROM */
 209         s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
 210         s8 curr_txpow;    /* (dBm) regulatory/spectrum/user (not h/w) */
 211         s8 min_power;     /* always 0 */
 212         s8 scan_power;    /* (dBm) regul. eeprom, direct scans, any rate */
 213
 214         u8 group_index;   /* 0-4, maps channel to group1/2/3/4/5 */
 215         u8 band_index;    /* 0-4, maps channel to band1/2/3/4/5 */
 216         enum ieee80211_band band;
 217
 218         /* Radio/DSP gain settings for each "normal" data Tx rate.
 219          * These include, in addition to RF and DSP gain, a few fields for
 220          *   remembering/modifying gain settings (indexes). */
 221         struct iwl3945_channel_power_info power_info[IWL4965_MAX_RATE];
 222
 223         /* Radio/DSP gain settings for each scan rate, for directed scans. */
 224         struct iwl3945_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES];
 225 };
 226
 227 struct iwl3945_clip_group {
 228         /* maximum power level to prevent clipping for each rate, derived by
 229          *   us from this band's saturation power in EEPROM */
 230         const s8 clip_powers[IWL_MAX_RATES];
 231 };
 232
 233 #include "iwl-3945-rs.h"
 234
 235 #define IWL_TX_FIFO_AC0 0
 236 #define IWL_TX_FIFO_AC1 1
 237 #define IWL_TX_FIFO_AC2 2
 238 #define IWL_TX_FIFO_AC3 3
 239 #define IWL_TX_FIFO_HCCA_1      5
 240 #define IWL_TX_FIFO_HCCA_2      6
 241 #define IWL_TX_FIFO_NONE        7
 242
 243 /* Minimum number of queues. MAX_NUM is defined in hw specific files */
 244 #define IWL_MIN_NUM_QUEUES      4
 245
 246 /* Power management (not Tx power) structures */
 247
 248 struct iwl3945_power_vec_entry {
 249         struct iwl3945_powertable_cmd cmd;
 250         u8 no_dtim;
 251 };
 252 #define IWL_POWER_RANGE_0  (0)
 253 #define IWL_POWER_RANGE_1  (1)
 254
 255 #define IWL_POWER_MODE_CAM      0x00    /* Continuously Aware Mode, always on */
 256 #define IWL_POWER_INDEX_3       0x03
 257 #define IWL_POWER_INDEX_5       0x05
 258 #define IWL_POWER_AC            0x06
 259 #define IWL_POWER_BATTERY       0x07
 260 #define IWL_POWER_LIMIT         0x07
 261 #define IWL_POWER_MASK          0x0F
 262 #define IWL_POWER_ENABLED       0x10
 263 #define IWL_POWER_LEVEL(x)      ((x) & IWL_POWER_MASK)
 264
 265 struct iwl3945_power_mgr {
 266         spinlock_t lock;
 267         struct iwl3945_power_vec_entry pwr_range_0[IWL_POWER_AC];
 268         struct iwl3945_power_vec_entry pwr_range_1[IWL_POWER_AC];
 269         u8 active_index;
 270         u32 dtim_val;
 271 };
 272
 273 #define IEEE80211_DATA_LEN              2304
 274 #define IEEE80211_4ADDR_LEN             30
 275 #define IEEE80211_HLEN                  (IEEE80211_4ADDR_LEN)
 276 #define IEEE80211_FRAME_LEN             (IEEE80211_DATA_LEN + IEEE80211_HLEN)
 277
 278 struct iwl3945_frame {
 279         union {
 280                 struct ieee80211_hdr frame;
 281                 struct iwl3945_tx_beacon_cmd beacon;
 282                 u8 raw[IEEE80211_FRAME_LEN];
 283                 u8 cmd[360];
 284         } u;
 285         struct list_head list;
 286 };
 287
 288 #define SEQ_TO_QUEUE(x)  ((x >> 8) & 0xbf)
 289 #define QUEUE_TO_SEQ(x)  ((x & 0xbf) << 8)
 290 #define SEQ_TO_INDEX(x) ((u8)(x & 0xff))
 291 #define INDEX_TO_SEQ(x) ((u8)(x & 0xff))
 292 #define SEQ_HUGE_FRAME  (0x4000)
 293 #define SEQ_RX_FRAME    __constant_cpu_to_le16(0x8000)
 294 #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
 295 #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
 296 #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
 297
 298 enum {
 299         /* CMD_SIZE_NORMAL = 0, */
 300         CMD_SIZE_HUGE = (1 << 0),
 301         /* CMD_SYNC = 0, */
 302         CMD_ASYNC = (1 << 1),
 303         /* CMD_NO_SKB = 0, */
 304         CMD_WANT_SKB = (1 << 2),
 305 };
 306
 307 struct iwl3945_cmd;
 308 struct iwl3945_priv;
 309
 310 struct iwl3945_cmd_meta {
 311         struct iwl3945_cmd_meta *source;
 312         union {
 313                 struct sk_buff *skb;
 314                 int (*callback)(struct iwl3945_priv *priv,
 315                                 struct iwl3945_cmd *cmd, struct sk_buff *skb);
 316         } __attribute__ ((packed)) u;
 317
 318         /* The CMD_SIZE_HUGE flag bit indicates that the command
 319          * structure is stored at the end of the shared queue memory. */
 320         u32 flags;
 321
 322 } __attribute__ ((packed));
 323
 324 /**
 325  * struct iwl3945_cmd
 326  *
 327  * For allocation of the command and tx queues, this establishes the overall
 328  * size of the largest command we send to uCode, except for a scan command
 329  * (which is relatively huge; space is allocated separately).
 330  */
 331 struct iwl3945_cmd {
 332         struct iwl3945_cmd_meta meta;
 333         struct iwl3945_cmd_header hdr;
 334         union {
 335                 struct iwl3945_addsta_cmd addsta;
 336                 struct iwl3945_led_cmd led;
 337                 u32 flags;
 338                 u8 val8;
 339                 u16 val16;
 340                 u32 val32;
 341                 struct iwl3945_bt_cmd bt;
 342                 struct iwl3945_rxon_time_cmd rxon_time;
 343                 struct iwl3945_powertable_cmd powertable;
 344                 struct iwl3945_qosparam_cmd qosparam;
 345                 struct iwl3945_tx_cmd tx;
 346                 struct iwl3945_tx_beacon_cmd tx_beacon;
 347                 struct iwl3945_rxon_assoc_cmd rxon_assoc;
 348                 u8 *indirect;
 349                 u8 payload[360];
 350         } __attribute__ ((packed)) cmd;
 351 } __attribute__ ((packed));
 352
 353 struct iwl3945_host_cmd {
 354         u8 id;
 355         u16 len;
 356         struct iwl3945_cmd_meta meta;
 357         const void *data;
 358 };
 359
 360 #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl3945_cmd) - \
 361                               sizeof(struct iwl3945_cmd_meta))
 362
 363 /*
 364  * RX related structures and functions
 365  */
 366 #define RX_FREE_BUFFERS 64
 367 #define RX_LOW_WATERMARK 8
 368
 369 #define SUP_RATE_11A_MAX_NUM_CHANNELS  8
 370 #define SUP_RATE_11B_MAX_NUM_CHANNELS  4
 371 #define SUP_RATE_11G_MAX_NUM_CHANNELS  12
 372
 373 /**
 374  * struct iwl3945_rx_queue - Rx queue
 375  * @processed: Internal index to last handled Rx packet
 376  * @read: Shared index to newest available Rx buffer
 377  * @write: Shared index to oldest written Rx packet
 378  * @free_count: Number of pre-allocated buffers in rx_free
 379  * @rx_free: list of free SKBs for use
 380  * @rx_used: List of Rx buffers with no SKB
 381  * @need_update: flag to indicate we need to update read/write index
 382  *
 383  * NOTE:  rx_free and rx_used are used as a FIFO for iwl3945_rx_mem_buffers
 384  */
 385 struct iwl3945_rx_queue {
 386         __le32 *bd;
 387         dma_addr_t dma_addr;
 388         struct iwl3945_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
 389         struct iwl3945_rx_mem_buffer *queue[RX_QUEUE_SIZE];
 390         u32 processed;
 391         u32 read;
 392         u32 write;
 393         u32 free_count;
 394         struct list_head rx_free;
 395         struct list_head rx_used;
 396         int need_update;
 397         spinlock_t lock;
 398 };
 399
 400 #define IWL_SUPPORTED_RATES_IE_LEN         8
 401
 402 #define SCAN_INTERVAL 100
 403
 404 #define MAX_A_CHANNELS  252
 405 #define MIN_A_CHANNELS  7
 406
 407 #define MAX_B_CHANNELS  14
 408 #define MIN_B_CHANNELS  1
 409
 410 #define STATUS_HCMD_ACTIVE      0       /* host command in progress */
 411 #define STATUS_HCMD_SYNC_ACTIVE 1       /* sync host command in progress */
 412 #define STATUS_INT_ENABLED      2
 413 #define STATUS_RF_KILL_HW       3
 414 #define STATUS_RF_KILL_SW       4
 415 #define STATUS_INIT             5
 416 #define STATUS_ALIVE            6
 417 #define STATUS_READY            7
 418 #define STATUS_TEMPERATURE      8
 419 #define STATUS_GEO_CONFIGURED   9
 420 #define STATUS_EXIT_PENDING     10
 421 #define STATUS_IN_SUSPEND       11
 422 #define STATUS_STATISTICS       12
 423 #define STATUS_SCANNING         13
 424 #define STATUS_SCAN_ABORTING    14
 425 #define STATUS_SCAN_HW          15
 426 #define STATUS_POWER_PMI        16
 427 #define STATUS_FW_ERROR         17
 428 #define STATUS_CONF_PENDING     18
 429
 430 #define MAX_TID_COUNT        9
 431
 432 #define IWL_INVALID_RATE     0xFF
 433 #define IWL_INVALID_VALUE    -1
 434
 435 struct iwl3945_tid_data {
 436         u16 seq_number;
 437 };
 438
 439 struct iwl3945_hw_key {
 440         enum ieee80211_key_alg alg;
 441         int keylen;
 442         u8 key[32];
 443 };
 444
 445 union iwl3945_ht_rate_supp {
 446         u16 rates;
 447         struct {
 448                 u8 siso_rate;
 449                 u8 mimo_rate;
 450         };
 451 };
 452
 453 union iwl3945_qos_capabity {
 454         struct {
 455                 u8 edca_count:4;        /* bit 0-3 */
 456                 u8 q_ack:1;             /* bit 4 */
 457                 u8 queue_request:1;     /* bit 5 */
 458                 u8 txop_request:1;      /* bit 6 */
 459                 u8 reserved:1;          /* bit 7 */
 460         } q_AP;
 461         struct {
 462                 u8 acvo_APSD:1;         /* bit 0 */
 463                 u8 acvi_APSD:1;         /* bit 1 */
 464                 u8 ac_bk_APSD:1;        /* bit 2 */
 465                 u8 ac_be_APSD:1;        /* bit 3 */
 466                 u8 q_ack:1;             /* bit 4 */
 467                 u8 max_len:2;           /* bit 5-6 */
 468                 u8 more_data_ack:1;     /* bit 7 */
 469         } q_STA;
 470         u8 val;
 471 };
 472
 473 /* QoS structures */
 474 struct iwl3945_qos_info {
 475         int qos_enable;
 476         int qos_active;
 477         union iwl3945_qos_capabity qos_cap;
 478         struct iwl3945_qosparam_cmd def_qos_parm;
 479 };
 480
 481 #define STA_PS_STATUS_WAKE             0
 482 #define STA_PS_STATUS_SLEEP            1
 483
 484 struct iwl3945_station_entry {
 485         struct iwl3945_addsta_cmd sta;
 486         struct iwl3945_tid_data tid[MAX_TID_COUNT];
 487         union {
 488                 struct {
 489                         u8 rate;
 490                         u8 flags;
 491                 } s;
 492                 u16 rate_n_flags;
 493         } current_rate;
 494         u8 used;
 495         u8 ps_status;
 496         struct iwl3945_hw_key keyinfo;
 497 };
 498
 499 /* one for each uCode image (inst/data, boot/init/runtime) */
 500 struct fw_desc {
 501         void *v_addr;           /* access by driver */
 502         dma_addr_t p_addr;      /* access by card's busmaster DMA */
 503         u32 len;                /* bytes */
 504 };
 505
 506 /* uCode file layout */
 507 struct iwl3945_ucode {
 508         __le32 ver;             /* major/minor/subminor */
 509         __le32 inst_size;       /* bytes of runtime instructions */
 510         __le32 data_size;       /* bytes of runtime data */
 511         __le32 init_size;       /* bytes of initialization instructions */
 512         __le32 init_data_size;  /* bytes of initialization data */
 513         __le32 boot_size;       /* bytes of bootstrap instructions */
 514         u8 data[0];             /* data in same order as "size" elements */
 515 };
 516
 517 struct iwl3945_ibss_seq {
 518         u8 mac[ETH_ALEN];
 519         u16 seq_num;
 520         u16 frag_num;
 521         unsigned long packet_time;
 522         struct list_head list;
 523 };
 524
 525 /**
 526  * struct iwl3945_driver_hw_info
 527  * @max_txq_num: Max # Tx queues supported
 528  * @tx_cmd_len: Size of Tx command (but not including frame itself)
 529  * @tx_ant_num: Number of TX antennas
 530  * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
 531  * @rx_buf_size:
 532  * @max_pkt_size:
 533  * @max_rxq_log: Log-base-2 of max_rxq_size
 534  * @max_stations:
 535  * @bcast_sta_id:
 536  * @shared_virt: Pointer to driver/uCode shared Tx Byte Counts and Rx status
 537  * @shared_phys: Physical Pointer to Tx Byte Counts and Rx status
 538  */
 539 struct iwl3945_driver_hw_info {
 540         u16 max_txq_num;
 541         u16 tx_cmd_len;
 542         u16 tx_ant_num;
 543         u16 max_rxq_size;
 544         u32 rx_buf_size;
 545         u32 max_pkt_size;
 546         u16 max_rxq_log;
 547         u8  max_stations;
 548         u8  bcast_sta_id;
 549         void *shared_virt;
 550         dma_addr_t shared_phys;
 551 };
 552
 553 #define IWL_RX_HDR(x) ((struct iwl3945_rx_frame_hdr *)(\
 554                        x->u.rx_frame.stats.payload + \
 555                        x->u.rx_frame.stats.phy_count))
 556 #define IWL_RX_END(x) ((struct iwl3945_rx_frame_end *)(\
 557                        IWL_RX_HDR(x)->payload + \
 558                        le16_to_cpu(IWL_RX_HDR(x)->len)))
 559 #define IWL_RX_STATS(x) (&x->u.rx_frame.stats)
 560 #define IWL_RX_DATA(x) (IWL_RX_HDR(x)->payload)
 561
 562
 563 /******************************************************************************
 564  *
 565  * Functions implemented in iwl-base.c which are forward declared here
 566  * for use by iwl-*.c
 567  *
 568  *****************************************************************************/
 569 struct iwl3945_addsta_cmd;
 570 extern int iwl3945_send_add_station(struct iwl3945_priv *priv,
 571                                 struct iwl3945_addsta_cmd *sta, u8 flags);
 572 extern u8 iwl3945_add_station(struct iwl3945_priv *priv, const u8 *bssid,
 573                           int is_ap, u8 flags);
 574 extern int iwl3945_power_init_handle(struct iwl3945_priv *priv);
 575 extern int iwl3945_eeprom_init(struct iwl3945_priv *priv);
 576 extern int iwl3945_rx_queue_alloc(struct iwl3945_priv *priv);
 577 extern void iwl3945_rx_queue_reset(struct iwl3945_priv *priv,
 578                                struct iwl3945_rx_queue *rxq);
 579 extern int iwl3945_calc_db_from_ratio(int sig_ratio);
 580 extern int iwl3945_calc_sig_qual(int rssi_dbm, int noise_dbm);
 581 extern int iwl3945_tx_queue_init(struct iwl3945_priv *priv,
 582                              struct iwl3945_tx_queue *txq, int count, u32 id);
 583 extern void iwl3945_rx_replenish(void *data);
 584 extern void iwl3945_tx_queue_free(struct iwl3945_priv *priv, struct iwl3945_tx_queue *txq);
 585 extern int iwl3945_send_cmd_pdu(struct iwl3945_priv *priv, u8 id, u16 len,
 586                             const void *data);
 587 extern int __must_check iwl3945_send_cmd(struct iwl3945_priv *priv,
 588                 struct iwl3945_host_cmd *cmd);
 589 extern unsigned int iwl3945_fill_beacon_frame(struct iwl3945_priv *priv,
 590                                         struct ieee80211_hdr *hdr,
 591                                         const u8 *dest, int left);
 592 extern int iwl3945_rx_queue_update_write_ptr(struct iwl3945_priv *priv,
 593                                          struct iwl3945_rx_queue *q);
 594 extern int iwl3945_send_statistics_request(struct iwl3945_priv *priv);
 595 extern void iwl3945_set_decrypted_flag(struct iwl3945_priv *priv, struct sk_buff *skb,
 596                                    u32 decrypt_res,
 597                                    struct ieee80211_rx_status *stats);
 598 extern const u8 iwl3945_broadcast_addr[ETH_ALEN];
 599
 600 /*
 601  * Currently used by iwl-3945-rs... look at restructuring so that it doesn't
 602  * call this... todo... fix that.
 603 */
 604 extern u8 iwl3945_sync_station(struct iwl3945_priv *priv, int sta_id,
 605                            u16 tx_rate, u8 flags);
 606
 607 /******************************************************************************
 608  *
 609  * Functions implemented in iwl-[34]*.c which are forward declared here
 610  * for use by iwl-base.c
 611  *
 612  * NOTE:  The implementation of these functions are hardware specific
 613  * which is why they are in the hardware specific files (vs. iwl-base.c)
 614  *
 615  * Naming convention --
 616  * iwl3945_         <-- Its part of iwlwifi (should be changed to iwl3945_)
 617  * iwl3945_hw_      <-- Hardware specific (implemented in iwl-XXXX.c by all HW)
 618  * iwlXXXX_     <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
 619  * iwl3945_bg_      <-- Called from work queue context
 620  * iwl3945_mac_     <-- mac80211 callback
 621  *
 622  ****************************************************************************/
 623 extern void iwl3945_hw_rx_handler_setup(struct iwl3945_priv *priv);
 624 extern void iwl3945_hw_setup_deferred_work(struct iwl3945_priv *priv);
 625 extern void iwl3945_hw_cancel_deferred_work(struct iwl3945_priv *priv);
 626 extern int iwl3945_hw_rxq_stop(struct iwl3945_priv *priv);
 627 extern int iwl3945_hw_set_hw_setting(struct iwl3945_priv *priv);
 628 extern int iwl3945_hw_nic_init(struct iwl3945_priv *priv);
 629 extern int iwl3945_hw_nic_stop_master(struct iwl3945_priv *priv);
 630 extern void iwl3945_hw_txq_ctx_free(struct iwl3945_priv *priv);
 631 extern void iwl3945_hw_txq_ctx_stop(struct iwl3945_priv *priv);
 632 extern int iwl3945_hw_nic_reset(struct iwl3945_priv *priv);
 633 extern int iwl3945_hw_txq_attach_buf_to_tfd(struct iwl3945_priv *priv, void *tfd,
 634                                         dma_addr_t addr, u16 len);
 635 extern int iwl3945_hw_txq_free_tfd(struct iwl3945_priv *priv, struct iwl3945_tx_queue *txq);
 636 extern int iwl3945_hw_get_temperature(struct iwl3945_priv *priv);
 637 extern int iwl3945_hw_tx_queue_init(struct iwl3945_priv *priv,
 638                                 struct iwl3945_tx_queue *txq);
 639 extern unsigned int iwl3945_hw_get_beacon_cmd(struct iwl3945_priv *priv,
 640                                  struct iwl3945_frame *frame, u8 rate);
 641 extern int iwl3945_hw_get_rx_read(struct iwl3945_priv *priv);
 642 extern void iwl3945_hw_build_tx_cmd_rate(struct iwl3945_priv *priv,
 643                                      struct iwl3945_cmd *cmd,
 644                                      struct ieee80211_tx_info *info,
 645                                      struct ieee80211_hdr *hdr,
 646                                      int sta_id, int tx_id);
 647 extern int iwl3945_hw_reg_send_txpower(struct iwl3945_priv *priv);
 648 extern int iwl3945_hw_reg_set_txpower(struct iwl3945_priv *priv, s8 power);
 649 extern void iwl3945_hw_rx_statistics(struct iwl3945_priv *priv,
 650                                  struct iwl3945_rx_mem_buffer *rxb);
 651 extern void iwl3945_disable_events(struct iwl3945_priv *priv);
 652 extern int iwl4965_get_temperature(const struct iwl3945_priv *priv);
 653
 654 /**
 655  * iwl3945_hw_find_station - Find station id for a given BSSID
 656  * @bssid: MAC address of station ID to find
 657  *
 658  * NOTE:  This should not be hardware specific but the code has
 659  * not yet been merged into a single common layer for managing the
 660  * station tables.
 661  */
 662 extern u8 iwl3945_hw_find_station(struct iwl3945_priv *priv, const u8 *bssid);
 663
 664 extern int iwl3945_hw_channel_switch(struct iwl3945_priv *priv, u16 channel);
 665
 666 /*
 667  * Forward declare iwl-3945.c functions for iwl-base.c
 668  */
 669 extern __le32 iwl3945_get_antenna_flags(const struct iwl3945_priv *priv);
 670 extern int iwl3945_init_hw_rate_table(struct iwl3945_priv *priv);
 671 extern void iwl3945_reg_txpower_periodic(struct iwl3945_priv *priv);
 672 extern int iwl3945_txpower_set_from_eeprom(struct iwl3945_priv *priv);
 673 extern u8 iwl3945_sync_sta(struct iwl3945_priv *priv, int sta_id,
 674                  u16 tx_rate, u8 flags);
 675
 676
 677 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
 678
 679 enum {
 680         MEASUREMENT_READY = (1 << 0),
 681         MEASUREMENT_ACTIVE = (1 << 1),
 682 };
 683
 684 #endif
 685
 686 #ifdef CONFIG_IWL3945_RFKILL
 687 struct iwl3945_priv;
 688
 689 void iwl3945_rfkill_set_hw_state(struct iwl3945_priv *priv);
 690 void iwl3945_rfkill_unregister(struct iwl3945_priv *priv);
 691 int iwl3945_rfkill_init(struct iwl3945_priv *priv);
 692 #else
 693 static inline void iwl3945_rfkill_set_hw_state(struct iwl3945_priv *priv) {}
 694 static inline void iwl3945_rfkill_unregister(struct iwl3945_priv *priv) {}
 695 static inline int iwl3945_rfkill_init(struct iwl3945_priv *priv) { return 0; }
 696 #endif
 697
 698 #define IWL_MAX_NUM_QUEUES IWL39_MAX_NUM_QUEUES
 699
 700 struct iwl3945_priv {
 701
 702         /* ieee device used by generic ieee processing code */
 703         struct ieee80211_hw *hw;
 704         struct ieee80211_channel *ieee_channels;
 705         struct ieee80211_rate *ieee_rates;
 706         struct iwl_3945_cfg *cfg; /* device configuration */
 707
 708         /* temporary frame storage list */
 709         struct list_head free_frames;
 710         int frames_count;
 711
 712         enum ieee80211_band band;
 713         int alloc_rxb_skb;
 714
 715         void (*rx_handlers[REPLY_MAX])(struct iwl3945_priv *priv,
 716                                        struct iwl3945_rx_mem_buffer *rxb);
 717
 718         struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
 719
 720 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
 721         /* spectrum measurement report caching */
 722         struct iwl3945_spectrum_notification measure_report;
 723         u8 measurement_status;
 724 #endif
 725         /* ucode beacon time */
 726         u32 ucode_beacon_time;
 727
 728         /* we allocate array of iwl3945_channel_info for NIC's valid channels.
 729          *    Access via channel # using indirect index array */
 730         struct iwl3945_channel_info *channel_info;      /* channel info array */
 731         u8 channel_count;       /* # of channels */
 732
 733         /* each calibration channel group in the EEPROM has a derived
 734          * clip setting for each rate. */
 735         const struct iwl3945_clip_group clip_groups[5];
 736
 737         /* thermal calibration */
 738         s32 temperature;        /* degrees Kelvin */
 739         s32 last_temperature;
 740
 741         /* Scan related variables */
 742         unsigned long last_scan_jiffies;
 743         unsigned long next_scan_jiffies;
 744         unsigned long scan_start;
 745         unsigned long scan_pass_start;
 746         unsigned long scan_start_tsf;
 747         int scan_bands;
 748         int one_direct_scan;
 749         u8 direct_ssid_len;
 750         u8 direct_ssid[IW_ESSID_MAX_SIZE];
 751         struct iwl3945_scan_cmd *scan;
 752
 753         /* spinlock */
 754         spinlock_t lock;        /* protect general shared data */
 755         spinlock_t hcmd_lock;   /* protect hcmd */
 756         struct mutex mutex;
 757
 758         /* basic pci-network driver stuff */
 759         struct pci_dev *pci_dev;
 760
 761         /* pci hardware address support */
 762         void __iomem *hw_base;
 763
 764         /* uCode images, save to reload in case of failure */
 765         struct fw_desc ucode_code;      /* runtime inst */
 766         struct fw_desc ucode_data;      /* runtime data original */
 767         struct fw_desc ucode_data_backup;       /* runtime data save/restore */
 768         struct fw_desc ucode_init;      /* initialization inst */
 769         struct fw_desc ucode_init_data; /* initialization data */
 770         struct fw_desc ucode_boot;      /* bootstrap inst */
 771
 772
 773         struct iwl3945_rxon_time_cmd rxon_timing;
 774
 775         /* We declare this const so it can only be
 776          * changed via explicit cast within the
 777          * routines that actually update the physical
 778          * hardware */
 779         const struct iwl3945_rxon_cmd active_rxon;
 780         struct iwl3945_rxon_cmd staging_rxon;
 781
 782         int error_recovering;
 783         struct iwl3945_rxon_cmd recovery_rxon;
 784
 785         /* 1st responses from initialize and runtime uCode images.
 786          * 4965's initialize alive response contains some calibration data. */
 787         struct iwl3945_init_alive_resp card_alive_init;
 788         struct iwl3945_alive_resp card_alive;
 789
 790 #ifdef CONFIG_IWL3945_RFKILL
 791         struct rfkill *rfkill;
 792 #endif
 793
 794 #ifdef CONFIG_IWL3945_LEDS
 795         struct iwl3945_led led[IWL_LED_TRG_MAX];
 796         unsigned long last_blink_time;
 797         u8 last_blink_rate;
 798         u8 allow_blinking;
 799         unsigned int rxtxpackets;
 800         u64 led_tpt;
 801 #endif
 802
 803
 804         u16 active_rate;
 805         u16 active_rate_basic;
 806
 807         u8 call_post_assoc_from_beacon;
 808         /* Rate scaling data */
 809         s8 data_retry_limit;
 810         u8 retry_rate;
 811
 812         wait_queue_head_t wait_command_queue;
 813
 814         int activity_timer_active;
 815
 816         /* Rx and Tx DMA processing queues */
 817         struct iwl3945_rx_queue rxq;
 818         struct iwl3945_tx_queue txq[IWL_MAX_NUM_QUEUES];
 819
 820         unsigned long status;
 821
 822         int last_rx_rssi;       /* From Rx packet statisitics */
 823         int last_rx_noise;      /* From beacon statistics */
 824
 825         struct iwl3945_power_mgr power_data;
 826
 827         struct iwl3945_notif_statistics statistics;
 828         unsigned long last_statistics_time;
 829
 830         /* context information */
 831         u16 rates_mask;
 832
 833         u32 power_mode;
 834         u32 antenna;
 835         u8 bssid[ETH_ALEN];
 836         u16 rts_threshold;
 837         u8 mac_addr[ETH_ALEN];
 838
 839         /*station table variables */
 840         spinlock_t sta_lock;
 841         int num_stations;
 842         struct iwl3945_station_entry stations[IWL_STATION_COUNT];
 843
 844         /* Indication if ieee80211_ops->open has been called */
 845         u8 is_open;
 846
 847         u8 mac80211_registered;
 848
 849         /* Rx'd packet timing information */
 850         u32 last_beacon_time;
 851         u64 last_tsf;
 852
 853         /* eeprom */
 854         struct iwl3945_eeprom eeprom;
 855
 856         enum nl80211_iftype iw_mode;
 857
 858         struct sk_buff *ibss_beacon;
 859
 860         /* Last Rx'd beacon timestamp */
 861         u32 timestamp0;
 862         u32 timestamp1;
 863         u16 beacon_int;
 864         struct iwl3945_driver_hw_info hw_setting;
 865         struct ieee80211_vif *vif;
 866
 867         /* Current association information needed to configure the
 868          * hardware */
 869         u16 assoc_id;
 870         u16 assoc_capability;
 871         u8 ps_mode;
 872
 873         struct iwl3945_qos_info qos_data;
 874
 875         struct workqueue_struct *workqueue;
 876
 877         struct work_struct up;
 878         struct work_struct restart;
 879         struct work_struct calibrated_work;
 880         struct work_struct scan_completed;
 881         struct work_struct rx_replenish;
 882         struct work_struct rf_kill;
 883         struct work_struct abort_scan;
 884         struct work_struct update_link_led;
 885         struct work_struct auth_work;
 886         struct work_struct report_work;
 887         struct work_struct request_scan;
 888         struct work_struct beacon_update;
 889         struct work_struct set_monitor;
 890
 891         struct tasklet_struct irq_tasklet;
 892
 893         struct delayed_work init_alive_start;
 894         struct delayed_work alive_start;
 895         struct delayed_work activity_timer;
 896         struct delayed_work thermal_periodic;
 897         struct delayed_work gather_stats;
 898         struct delayed_work scan_check;
 899
 900 #define IWL_DEFAULT_TX_POWER 0x0F
 901         s8 user_txpower_limit;
 902         s8 max_channel_txpower_limit;
 903
 904 #ifdef CONFIG_PM
 905         u32 pm_state[16];
 906 #endif
 907
 908 #ifdef CONFIG_IWL3945_DEBUG
 909         /* debugging info */
 910         u32 framecnt_to_us;
 911         atomic_t restrict_refcnt;
 912 #endif
 913 };                              /*iwl3945_priv */
 914
 915 static inline int iwl3945_is_associated(struct iwl3945_priv *priv)
 916 {
 917         return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
 918 }
 919
 920 static inline int is_channel_valid(const struct iwl3945_channel_info *ch_info)
 921 {
 922         if (ch_info == NULL)
 923                 return 0;
 924         return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
 925 }
 926
 927 static inline int is_channel_radar(const struct iwl3945_channel_info *ch_info)
 928 {
 929         return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
 930 }
 931
 932 static inline u8 is_channel_a_band(const struct iwl3945_channel_info *ch_info)
 933 {
 934         return ch_info->band == IEEE80211_BAND_5GHZ;
 935 }
 936
 937 static inline u8 is_channel_bg_band(const struct iwl3945_channel_info *ch_info)
 938 {
 939         return ch_info->band == IEEE80211_BAND_2GHZ;
 940 }
 941
 942 static inline int is_channel_passive(const struct iwl3945_channel_info *ch)
 943 {
 944         return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
 945 }
 946
 947 static inline int is_channel_ibss(const struct iwl3945_channel_info *ch)
 948 {
 949         return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
 950 }
 951
 952 extern const struct iwl3945_channel_info *iwl3945_get_channel_info(
 953         const struct iwl3945_priv *priv, enum ieee80211_band band, u16 channel);
 954
 955 extern int iwl3945_rs_next_rate(struct iwl3945_priv *priv, int rate);
 956
 957 /* Requires full declaration of iwl3945_priv before including */
 958 #include "iwl-3945-io.h"
 959
 960 #endif