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 /* Hardware specific file defines the PCI IDs table for that hardware module */
  40 extern struct pci_device_id iwl3945_hw_card_ids[];
  41
  42 #define DRV_NAME        "iwl3945"
  43 #include "iwl-csr.h"
  44 #include "iwl-prph.h"
  45 #include "iwl-3945-hw.h"
  46 #include "iwl-3945-debug.h"
  47 #include "iwl-3945-led.h"
  48
  49 /* Change firmware file name, using "-" and incrementing number,
  50  *   *only* when uCode interface or architecture changes so that it
  51  *   is not compatible with earlier drivers.
  52  * This number will also appear in << 8 position of 1st dword of uCode file */
  53 #define IWL3945_UCODE_API "-1"
  54
  55 /* Default noise level to report when noise measurement is not available.
  56  *   This may be because we're:
  57  *   1)  Not associated (4965, no beacon statistics being sent to driver)
  58  *   2)  Scanning (noise measurement does not apply to associated channel)
  59  *   3)  Receiving CCK (3945 delivers noise info only for OFDM frames)
  60  * Use default noise value of -127 ... this is below the range of measurable
  61  *   Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
  62  *   Also, -127 works better than 0 when averaging frames with/without
  63  *   noise info (e.g. averaging might be done in app); measured dBm values are
  64  *   always negative ... using a negative value as the default keeps all
  65  *   averages within an s8's (used in some apps) range of negative values. */
  66 #define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
  67
  68 /* Module parameters accessible from iwl-*.c */
  69 extern int iwl3945_param_hwcrypto;
  70 extern int iwl3945_param_queues_num;
  71
  72 enum iwl3945_antenna {
  73         IWL_ANTENNA_DIVERSITY,
  74         IWL_ANTENNA_MAIN,
  75         IWL_ANTENNA_AUX
  76 };
  77
  78 /*
  79  * RTS threshold here is total size [2347] minus 4 FCS bytes
  80  * Per spec:
  81  *   a value of 0 means RTS on all data/management packets
  82  *   a value > max MSDU size means no RTS
  83  * else RTS for data/management frames where MPDU is larger
  84  *   than RTS value.
  85  */
  86 #define IWL_RX_BUF_SIZE           3000U
  87 #define DEFAULT_RTS_THRESHOLD     2347U
  88 #define MIN_RTS_THRESHOLD         0U
  89 #define MAX_RTS_THRESHOLD         2347U
  90 #define MAX_MSDU_SIZE             2304U
  91 #define MAX_MPDU_SIZE             2346U
  92 #define DEFAULT_BEACON_INTERVAL   100U
  93 #define DEFAULT_SHORT_RETRY_LIMIT 7U
  94 #define DEFAULT_LONG_RETRY_LIMIT  4U
  95
  96 struct iwl3945_rx_mem_buffer {
  97         dma_addr_t dma_addr;
  98         struct sk_buff *skb;
  99         struct list_head list;
 100 };
 101
 102 /*
 103  * Generic queue structure
 104  *
 105  * Contains common data for Rx and Tx queues
 106  */
 107 struct iwl3945_queue {
 108         int n_bd;              /* number of BDs in this queue */
 109         int write_ptr;       /* 1-st empty entry (index) host_w*/
 110         int read_ptr;         /* last used entry (index) host_r*/
 111         dma_addr_t dma_addr;   /* physical addr for BD's */
 112         int n_window;          /* safe queue window */
 113         u32 id;
 114         int low_mark;          /* low watermark, resume queue if free
 115                                 * space more than this */
 116         int high_mark;         /* high watermark, stop queue if free
 117                                 * space less than this */
 118 } __attribute__ ((packed));
 119
 120 int iwl3945_queue_space(const struct iwl3945_queue *q);
 121 int iwl3945_x2_queue_used(const struct iwl3945_queue *q, int i);
 122
 123 #define MAX_NUM_OF_TBS          (20)
 124
 125 /* One for each TFD */
 126 struct iwl3945_tx_info {
 127         struct ieee80211_tx_status status;
 128         struct sk_buff *skb[MAX_NUM_OF_TBS];
 129 };
 130
 131 /**
 132  * struct iwl3945_tx_queue - Tx Queue for DMA
 133  * @q: generic Rx/Tx queue descriptor
 134  * @bd: base of circular buffer of TFDs
 135  * @cmd: array of command/Tx buffers
 136  * @dma_addr_cmd: physical address of cmd/tx buffer array
 137  * @txb: array of per-TFD driver data
 138  * @need_update: indicates need to update read/write index
 139  *
 140  * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
 141  * descriptors) and required locking structures.
 142  */
 143 struct iwl3945_tx_queue {
 144         struct iwl3945_queue q;
 145         struct iwl3945_tfd_frame *bd;
 146         struct iwl3945_cmd *cmd;
 147         dma_addr_t dma_addr_cmd;
 148         struct iwl3945_tx_info *txb;
 149         int need_update;
 150         int active;
 151 };
 152
 153 #define IWL_NUM_SCAN_RATES         (2)
 154
 155 struct iwl3945_channel_tgd_info {
 156         u8 type;
 157         s8 max_power;
 158 };
 159
 160 struct iwl3945_channel_tgh_info {
 161         s64 last_radar_time;
 162 };
 163
 164 /* current Tx power values to use, one for each rate for each channel.
 165  * requested power is limited by:
 166  * -- regulatory EEPROM limits for this channel
 167  * -- hardware capabilities (clip-powers)
 168  * -- spectrum management
 169  * -- user preference (e.g. iwconfig)
 170  * when requested power is set, base power index must also be set. */
 171 struct iwl3945_channel_power_info {
 172         struct iwl3945_tx_power tpc;    /* actual radio and DSP gain settings */
 173         s8 power_table_index;   /* actual (compenst'd) index into gain table */
 174         s8 base_power_index;    /* gain index for power at factory temp. */
 175         s8 requested_power;     /* power (dBm) requested for this chnl/rate */
 176 };
 177
 178 /* current scan Tx power values to use, one for each scan rate for each
 179  * channel. */
 180 struct iwl3945_scan_power_info {
 181         struct iwl3945_tx_power tpc;    /* actual radio and DSP gain settings */
 182         s8 power_table_index;   /* actual (compenst'd) index into gain table */
 183         s8 requested_power;     /* scan pwr (dBm) requested for chnl/rate */
 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 iwl3945_channel_info {
 194         struct iwl3945_channel_tgd_info tgd;
 195         struct iwl3945_channel_tgh_info tgh;
 196         struct iwl3945_eeprom_channel eeprom;   /* EEPROM regulatory limit */
 197         struct iwl3945_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) */
 204         s8 min_power;     /* always 0 */
 205         s8 scan_power;    /* (dBm) regul. eeprom, direct scans, any rate */
 206
 207         u8 group_index;   /* 0-4, maps channel to group1/2/3/4/5 */
 208         u8 band_index;    /* 0-4, maps channel to band1/2/3/4/5 */
 209         enum ieee80211_band band;
 210
 211         /* Radio/DSP gain settings for each "normal" data Tx rate.
 212          * These include, in addition to RF and DSP gain, a few fields for
 213          *   remembering/modifying gain settings (indexes). */
 214         struct iwl3945_channel_power_info power_info[IWL4965_MAX_RATE];
 215
 216         /* Radio/DSP gain settings for each scan rate, for directed scans. */
 217         struct iwl3945_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES];
 218 };
 219
 220 struct iwl3945_clip_group {
 221         /* maximum power level to prevent clipping for each rate, derived by
 222          *   us from this band's saturation power in EEPROM */
 223         const s8 clip_powers[IWL_MAX_RATES];
 224 };
 225
 226 #include "iwl-3945-rs.h"
 227
 228 #define IWL_TX_FIFO_AC0 0
 229 #define IWL_TX_FIFO_AC1 1
 230 #define IWL_TX_FIFO_AC2 2
 231 #define IWL_TX_FIFO_AC3 3
 232 #define IWL_TX_FIFO_HCCA_1      5
 233 #define IWL_TX_FIFO_HCCA_2      6
 234 #define IWL_TX_FIFO_NONE        7
 235
 236 /* Minimum number of queues. MAX_NUM is defined in hw specific files */
 237 #define IWL_MIN_NUM_QUEUES      4
 238
 239 /* Power management (not Tx power) structures */
 240
 241 struct iwl3945_power_vec_entry {
 242         struct iwl3945_powertable_cmd cmd;
 243         u8 no_dtim;
 244 };
 245 #define IWL_POWER_RANGE_0  (0)
 246 #define IWL_POWER_RANGE_1  (1)
 247
 248 #define IWL_POWER_MODE_CAM      0x00    /* Continuously Aware Mode, always on */
 249 #define IWL_POWER_INDEX_3       0x03
 250 #define IWL_POWER_INDEX_5       0x05
 251 #define IWL_POWER_AC            0x06
 252 #define IWL_POWER_BATTERY       0x07
 253 #define IWL_POWER_LIMIT         0x07
 254 #define IWL_POWER_MASK          0x0F
 255 #define IWL_POWER_ENABLED       0x10
 256 #define IWL_POWER_LEVEL(x)      ((x) & IWL_POWER_MASK)
 257
 258 struct iwl3945_power_mgr {
 259         spinlock_t lock;
 260         struct iwl3945_power_vec_entry pwr_range_0[IWL_POWER_AC];
 261         struct iwl3945_power_vec_entry pwr_range_1[IWL_POWER_AC];
 262         u8 active_index;
 263         u32 dtim_val;
 264 };
 265
 266 #define IEEE80211_DATA_LEN              2304
 267 #define IEEE80211_4ADDR_LEN             30
 268 #define IEEE80211_HLEN                  (IEEE80211_4ADDR_LEN)
 269 #define IEEE80211_FRAME_LEN             (IEEE80211_DATA_LEN + IEEE80211_HLEN)
 270
 271 struct iwl3945_frame {
 272         union {
 273                 struct ieee80211_hdr frame;
 274                 struct iwl3945_tx_beacon_cmd beacon;
 275                 u8 raw[IEEE80211_FRAME_LEN];
 276                 u8 cmd[360];
 277         } u;
 278         struct list_head list;
 279 };
 280
 281 #define SEQ_TO_QUEUE(x)  ((x >> 8) & 0xbf)
 282 #define QUEUE_TO_SEQ(x)  ((x & 0xbf) << 8)
 283 #define SEQ_TO_INDEX(x) ((u8)(x & 0xff))
 284 #define INDEX_TO_SEQ(x) ((u8)(x & 0xff))
 285 #define SEQ_HUGE_FRAME  (0x4000)
 286 #define SEQ_RX_FRAME    __constant_cpu_to_le16(0x8000)
 287 #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
 288 #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
 289 #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
 290
 291 enum {
 292         /* CMD_SIZE_NORMAL = 0, */
 293         CMD_SIZE_HUGE = (1 << 0),
 294         /* CMD_SYNC = 0, */
 295         CMD_ASYNC = (1 << 1),
 296         /* CMD_NO_SKB = 0, */
 297         CMD_WANT_SKB = (1 << 2),
 298 };
 299
 300 struct iwl3945_cmd;
 301 struct iwl3945_priv;
 302
 303 struct iwl3945_cmd_meta {
 304         struct iwl3945_cmd_meta *source;
 305         union {
 306                 struct sk_buff *skb;
 307                 int (*callback)(struct iwl3945_priv *priv,
 308                                 struct iwl3945_cmd *cmd, struct sk_buff *skb);
 309         } __attribute__ ((packed)) u;
 310
 311         /* The CMD_SIZE_HUGE flag bit indicates that the command
 312          * structure is stored at the end of the shared queue memory. */
 313         u32 flags;
 314
 315 } __attribute__ ((packed));
 316
 317 /**
 318  * struct iwl3945_cmd
 319  *
 320  * For allocation of the command and tx queues, this establishes the overall
 321  * size of the largest command we send to uCode, except for a scan command
 322  * (which is relatively huge; space is allocated separately).
 323  */
 324 struct iwl3945_cmd {
 325         struct iwl3945_cmd_meta meta;
 326         struct iwl3945_cmd_header hdr;
 327         union {
 328                 struct iwl3945_addsta_cmd addsta;
 329                 struct iwl3945_led_cmd led;
 330                 u32 flags;
 331                 u8 val8;
 332                 u16 val16;
 333                 u32 val32;
 334                 struct iwl3945_bt_cmd bt;
 335                 struct iwl3945_rxon_time_cmd rxon_time;
 336                 struct iwl3945_powertable_cmd powertable;
 337                 struct iwl3945_qosparam_cmd qosparam;
 338                 struct iwl3945_tx_cmd tx;
 339                 struct iwl3945_tx_beacon_cmd tx_beacon;
 340                 struct iwl3945_rxon_assoc_cmd rxon_assoc;
 341                 u8 *indirect;
 342                 u8 payload[360];
 343         } __attribute__ ((packed)) cmd;
 344 } __attribute__ ((packed));
 345
 346 struct iwl3945_host_cmd {
 347         u8 id;
 348         u16 len;
 349         struct iwl3945_cmd_meta meta;
 350         const void *data;
 351 };
 352
 353 #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl3945_cmd) - \
 354                               sizeof(struct iwl3945_cmd_meta))
 355
 356 /*
 357  * RX related structures and functions
 358  */
 359 #define RX_FREE_BUFFERS 64
 360 #define RX_LOW_WATERMARK 8
 361
 362 #define SUP_RATE_11A_MAX_NUM_CHANNELS  8
 363 #define SUP_RATE_11B_MAX_NUM_CHANNELS  4
 364 #define SUP_RATE_11G_MAX_NUM_CHANNELS  12
 365
 366 /**
 367  * struct iwl3945_rx_queue - Rx queue
 368  * @processed: Internal index to last handled Rx packet
 369  * @read: Shared index to newest available Rx buffer
 370  * @write: Shared index to oldest written Rx packet
 371  * @free_count: Number of pre-allocated buffers in rx_free
 372  * @rx_free: list of free SKBs for use
 373  * @rx_used: List of Rx buffers with no SKB
 374  * @need_update: flag to indicate we need to update read/write index
 375  *
 376  * NOTE:  rx_free and rx_used are used as a FIFO for iwl3945_rx_mem_buffers
 377  */
 378 struct iwl3945_rx_queue {
 379         __le32 *bd;
 380         dma_addr_t dma_addr;
 381         struct iwl3945_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
 382         struct iwl3945_rx_mem_buffer *queue[RX_QUEUE_SIZE];
 383         u32 processed;
 384         u32 read;
 385         u32 write;
 386         u32 free_count;
 387         struct list_head rx_free;
 388         struct list_head rx_used;
 389         int need_update;
 390         spinlock_t lock;
 391 };
 392
 393 #define IWL_SUPPORTED_RATES_IE_LEN         8
 394
 395 #define SCAN_INTERVAL 100
 396
 397 #define MAX_A_CHANNELS  252
 398 #define MIN_A_CHANNELS  7
 399
 400 #define MAX_B_CHANNELS  14
 401 #define MIN_B_CHANNELS  1
 402
 403 #define STATUS_HCMD_ACTIVE      0       /* host command in progress */
 404 #define STATUS_HCMD_SYNC_ACTIVE 1       /* sync host command in progress */
 405 #define STATUS_INT_ENABLED      2
 406 #define STATUS_RF_KILL_HW       3
 407 #define STATUS_RF_KILL_SW       4
 408 #define STATUS_INIT             5
 409 #define STATUS_ALIVE            6
 410 #define STATUS_READY            7
 411 #define STATUS_TEMPERATURE      8
 412 #define STATUS_GEO_CONFIGURED   9
 413 #define STATUS_EXIT_PENDING     10
 414 #define STATUS_IN_SUSPEND       11
 415 #define STATUS_STATISTICS       12
 416 #define STATUS_SCANNING         13
 417 #define STATUS_SCAN_ABORTING    14
 418 #define STATUS_SCAN_HW          15
 419 #define STATUS_POWER_PMI        16
 420 #define STATUS_FW_ERROR         17
 421 #define STATUS_CONF_PENDING     18
 422
 423 #define MAX_TID_COUNT        9
 424
 425 #define IWL_INVALID_RATE     0xFF
 426 #define IWL_INVALID_VALUE    -1
 427
 428 struct iwl3945_tid_data {
 429         u16 seq_number;
 430 };
 431
 432 struct iwl3945_hw_key {
 433         enum ieee80211_key_alg alg;
 434         int keylen;
 435         u8 key[32];
 436 };
 437
 438 union iwl3945_ht_rate_supp {
 439         u16 rates;
 440         struct {
 441                 u8 siso_rate;
 442                 u8 mimo_rate;
 443         };
 444 };
 445
 446 union iwl3945_qos_capabity {
 447         struct {
 448                 u8 edca_count:4;        /* bit 0-3 */
 449                 u8 q_ack:1;             /* bit 4 */
 450                 u8 queue_request:1;     /* bit 5 */
 451                 u8 txop_request:1;      /* bit 6 */
 452                 u8 reserved:1;          /* bit 7 */
 453         } q_AP;
 454         struct {
 455                 u8 acvo_APSD:1;         /* bit 0 */
 456                 u8 acvi_APSD:1;         /* bit 1 */
 457                 u8 ac_bk_APSD:1;        /* bit 2 */
 458                 u8 ac_be_APSD:1;        /* bit 3 */
 459                 u8 q_ack:1;             /* bit 4 */
 460                 u8 max_len:2;           /* bit 5-6 */
 461                 u8 more_data_ack:1;     /* bit 7 */
 462         } q_STA;
 463         u8 val;
 464 };
 465
 466 /* QoS structures */
 467 struct iwl3945_qos_info {
 468         int qos_enable;
 469         int qos_active;
 470         union iwl3945_qos_capabity qos_cap;
 471         struct iwl3945_qosparam_cmd def_qos_parm;
 472 };
 473
 474 #define STA_PS_STATUS_WAKE             0
 475 #define STA_PS_STATUS_SLEEP            1
 476
 477 struct iwl3945_station_entry {
 478         struct iwl3945_addsta_cmd sta;
 479         struct iwl3945_tid_data tid[MAX_TID_COUNT];
 480         union {
 481                 struct {
 482                         u8 rate;
 483                         u8 flags;
 484                 } s;
 485                 u16 rate_n_flags;
 486         } current_rate;
 487         u8 used;
 488         u8 ps_status;
 489         struct iwl3945_hw_key keyinfo;
 490 };
 491
 492 /* one for each uCode image (inst/data, boot/init/runtime) */
 493 struct fw_desc {
 494         void *v_addr;           /* access by driver */
 495         dma_addr_t p_addr;      /* access by card's busmaster DMA */
 496         u32 len;                /* bytes */
 497 };
 498
 499 /* uCode file layout */
 500 struct iwl3945_ucode {
 501         __le32 ver;             /* major/minor/subminor */
 502         __le32 inst_size;       /* bytes of runtime instructions */
 503         __le32 data_size;       /* bytes of runtime data */
 504         __le32 init_size;       /* bytes of initialization instructions */
 505         __le32 init_data_size;  /* bytes of initialization data */
 506         __le32 boot_size;       /* bytes of bootstrap instructions */
 507         u8 data[0];             /* data in same order as "size" elements */
 508 };
 509
 510 #define IWL_IBSS_MAC_HASH_SIZE 32
 511
 512 struct iwl3945_ibss_seq {
 513         u8 mac[ETH_ALEN];
 514         u16 seq_num;
 515         u16 frag_num;
 516         unsigned long packet_time;
 517         struct list_head list;
 518 };
 519
 520 /**
 521  * struct iwl3945_driver_hw_info
 522  * @max_txq_num: Max # Tx queues supported
 523  * @tx_cmd_len: Size of Tx command (but not including frame itself)
 524  * @tx_ant_num: Number of TX antennas
 525  * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
 526  * @rx_buf_size:
 527  * @max_pkt_size:
 528  * @max_rxq_log: Log-base-2 of max_rxq_size
 529  * @max_stations:
 530  * @bcast_sta_id:
 531  * @shared_virt: Pointer to driver/uCode shared Tx Byte Counts and Rx status
 532  * @shared_phys: Physical Pointer to Tx Byte Counts and Rx status
 533  */
 534 struct iwl3945_driver_hw_info {
 535         u16 max_txq_num;
 536         u16 tx_cmd_len;
 537         u16 tx_ant_num;
 538         u16 max_rxq_size;
 539         u32 rx_buf_size;
 540         u32 max_pkt_size;
 541         u16 max_rxq_log;
 542         u8  max_stations;
 543         u8  bcast_sta_id;
 544         void *shared_virt;
 545         dma_addr_t shared_phys;
 546 };
 547
 548 #define IWL_RX_HDR(x) ((struct iwl3945_rx_frame_hdr *)(\
 549                        x->u.rx_frame.stats.payload + \
 550                        x->u.rx_frame.stats.phy_count))
 551 #define IWL_RX_END(x) ((struct iwl3945_rx_frame_end *)(\
 552                        IWL_RX_HDR(x)->payload + \
 553                        le16_to_cpu(IWL_RX_HDR(x)->len)))
 554 #define IWL_RX_STATS(x) (&x->u.rx_frame.stats)
 555 #define IWL_RX_DATA(x) (IWL_RX_HDR(x)->payload)
 556
 557
 558 /******************************************************************************
 559  *
 560  * Functions implemented in iwl-base.c which are forward declared here
 561  * for use by iwl-*.c
 562  *
 563  *****************************************************************************/
 564 struct iwl3945_addsta_cmd;
 565 extern int iwl3945_send_add_station(struct iwl3945_priv *priv,
 566                                 struct iwl3945_addsta_cmd *sta, u8 flags);
 567 extern u8 iwl3945_add_station(struct iwl3945_priv *priv, const u8 *bssid,
 568                           int is_ap, u8 flags);
 569 extern int iwl3945_is_network_packet(struct iwl3945_priv *priv,
 570                                  struct ieee80211_hdr *header);
 571 extern int iwl3945_power_init_handle(struct iwl3945_priv *priv);
 572 extern int iwl3945_eeprom_init(struct iwl3945_priv *priv);
 573 extern void iwl3945_handle_data_packet_monitor(struct iwl3945_priv *priv,
 574                                            struct iwl3945_rx_mem_buffer *rxb,
 575                                            void *data, short len,
 576                                            struct ieee80211_rx_status *stats,
 577                                            u16 phy_flags);
 578 extern int iwl3945_is_duplicate_packet(struct iwl3945_priv *priv,
 579                                        struct ieee80211_hdr *header);
 580 extern int iwl3945_rx_queue_alloc(struct iwl3945_priv *priv);
 581 extern void iwl3945_rx_queue_reset(struct iwl3945_priv *priv,
 582                                struct iwl3945_rx_queue *rxq);
 583 extern int iwl3945_calc_db_from_ratio(int sig_ratio);
 584 extern int iwl3945_calc_sig_qual(int rssi_dbm, int noise_dbm);
 585 extern int iwl3945_tx_queue_init(struct iwl3945_priv *priv,
 586                              struct iwl3945_tx_queue *txq, int count, u32 id);
 587 extern void iwl3945_rx_replenish(void *data);
 588 extern void iwl3945_tx_queue_free(struct iwl3945_priv *priv, struct iwl3945_tx_queue *txq);
 589 extern int iwl3945_send_cmd_pdu(struct iwl3945_priv *priv, u8 id, u16 len,
 590                             const void *data);
 591 extern int __must_check iwl3945_send_cmd(struct iwl3945_priv *priv,
 592                 struct iwl3945_host_cmd *cmd);
 593 extern unsigned int iwl3945_fill_beacon_frame(struct iwl3945_priv *priv,
 594                                         struct ieee80211_hdr *hdr,
 595                                         const u8 *dest, int left);
 596 extern int iwl3945_rx_queue_update_write_ptr(struct iwl3945_priv *priv,
 597                                          struct iwl3945_rx_queue *q);
 598 extern int iwl3945_send_statistics_request(struct iwl3945_priv *priv);
 599 extern void iwl3945_set_decrypted_flag(struct iwl3945_priv *priv, struct sk_buff *skb,
 600                                    u32 decrypt_res,
 601                                    struct ieee80211_rx_status *stats);
 602 extern const u8 iwl3945_broadcast_addr[ETH_ALEN];
 603
 604 /*
 605  * Currently used by iwl-3945-rs... look at restructuring so that it doesn't
 606  * call this... todo... fix that.
 607 */
 608 extern u8 iwl3945_sync_station(struct iwl3945_priv *priv, int sta_id,
 609                            u16 tx_rate, u8 flags);
 610
 611 /******************************************************************************
 612  *
 613  * Functions implemented in iwl-[34]*.c which are forward declared here
 614  * for use by iwl-base.c
 615  *
 616  * NOTE:  The implementation of these functions are hardware specific
 617  * which is why they are in the hardware specific files (vs. iwl-base.c)
 618  *
 619  * Naming convention --
 620  * iwl3945_         <-- Its part of iwlwifi (should be changed to iwl3945_)
 621  * iwl3945_hw_      <-- Hardware specific (implemented in iwl-XXXX.c by all HW)
 622  * iwlXXXX_     <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
 623  * iwl3945_bg_      <-- Called from work queue context
 624  * iwl3945_mac_     <-- mac80211 callback
 625  *
 626  ****************************************************************************/
 627 extern void iwl3945_hw_rx_handler_setup(struct iwl3945_priv *priv);
 628 extern void iwl3945_hw_setup_deferred_work(struct iwl3945_priv *priv);
 629 extern void iwl3945_hw_cancel_deferred_work(struct iwl3945_priv *priv);
 630 extern int iwl3945_hw_rxq_stop(struct iwl3945_priv *priv);
 631 extern int iwl3945_hw_set_hw_setting(struct iwl3945_priv *priv);
 632 extern int iwl3945_hw_nic_init(struct iwl3945_priv *priv);
 633 extern int iwl3945_hw_nic_stop_master(struct iwl3945_priv *priv);
 634 extern void iwl3945_hw_txq_ctx_free(struct iwl3945_priv *priv);
 635 extern void iwl3945_hw_txq_ctx_stop(struct iwl3945_priv *priv);
 636 extern int iwl3945_hw_nic_reset(struct iwl3945_priv *priv);
 637 extern int iwl3945_hw_txq_attach_buf_to_tfd(struct iwl3945_priv *priv, void *tfd,
 638                                         dma_addr_t addr, u16 len);
 639 extern int iwl3945_hw_txq_free_tfd(struct iwl3945_priv *priv, struct iwl3945_tx_queue *txq);
 640 extern int iwl3945_hw_get_temperature(struct iwl3945_priv *priv);
 641 extern int iwl3945_hw_tx_queue_init(struct iwl3945_priv *priv,
 642                                 struct iwl3945_tx_queue *txq);
 643 extern unsigned int iwl3945_hw_get_beacon_cmd(struct iwl3945_priv *priv,
 644                                  struct iwl3945_frame *frame, u8 rate);
 645 extern int iwl3945_hw_get_rx_read(struct iwl3945_priv *priv);
 646 extern void iwl3945_hw_build_tx_cmd_rate(struct iwl3945_priv *priv,
 647                                      struct iwl3945_cmd *cmd,
 648                                      struct ieee80211_tx_control *ctrl,
 649                                      struct ieee80211_hdr *hdr,
 650                                      int sta_id, int tx_id);
 651 extern int iwl3945_hw_reg_send_txpower(struct iwl3945_priv *priv);
 652 extern int iwl3945_hw_reg_set_txpower(struct iwl3945_priv *priv, s8 power);
 653 extern void iwl3945_hw_rx_statistics(struct iwl3945_priv *priv,
 654                                  struct iwl3945_rx_mem_buffer *rxb);
 655 extern void iwl3945_disable_events(struct iwl3945_priv *priv);
 656 extern int iwl4965_get_temperature(const struct iwl3945_priv *priv);
 657
 658 /**
 659  * iwl3945_hw_find_station - Find station id for a given BSSID
 660  * @bssid: MAC address of station ID to find
 661  *
 662  * NOTE:  This should not be hardware specific but the code has
 663  * not yet been merged into a single common layer for managing the
 664  * station tables.
 665  */
 666 extern u8 iwl3945_hw_find_station(struct iwl3945_priv *priv, const u8 *bssid);
 667
 668 extern int iwl3945_hw_channel_switch(struct iwl3945_priv *priv, u16 channel);
 669
 670 /*
 671  * Forward declare iwl-3945.c functions for iwl-base.c
 672  */
 673 extern __le32 iwl3945_get_antenna_flags(const struct iwl3945_priv *priv);
 674 extern int iwl3945_init_hw_rate_table(struct iwl3945_priv *priv);
 675 extern void iwl3945_reg_txpower_periodic(struct iwl3945_priv *priv);
 676 extern int iwl3945_txpower_set_from_eeprom(struct iwl3945_priv *priv);
 677 extern u8 iwl3945_sync_sta(struct iwl3945_priv *priv, int sta_id,
 678                  u16 tx_rate, u8 flags);
 679
 680
 681 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
 682
 683 enum {
 684         MEASUREMENT_READY = (1 << 0),
 685         MEASUREMENT_ACTIVE = (1 << 1),
 686 };
 687
 688 #endif
 689
 690 #define IWL_MAX_NUM_QUEUES IWL39_MAX_NUM_QUEUES
 691
 692 struct iwl3945_priv {
 693
 694         /* ieee device used by generic ieee processing code */
 695         struct ieee80211_hw *hw;
 696         struct ieee80211_channel *ieee_channels;
 697         struct ieee80211_rate *ieee_rates;
 698         struct iwl_3945_cfg *cfg; /* device configuration */
 699
 700         /* temporary frame storage list */
 701         struct list_head free_frames;
 702         int frames_count;
 703
 704         enum ieee80211_band band;
 705         int alloc_rxb_skb;
 706         bool add_radiotap;
 707
 708         void (*rx_handlers[REPLY_MAX])(struct iwl3945_priv *priv,
 709                                        struct iwl3945_rx_mem_buffer *rxb);
 710
 711         struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
 712
 713 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
 714         /* spectrum measurement report caching */
 715         struct iwl3945_spectrum_notification measure_report;
 716         u8 measurement_status;
 717 #endif
 718         /* ucode beacon time */
 719         u32 ucode_beacon_time;
 720
 721         /* we allocate array of iwl3945_channel_info for NIC's valid channels.
 722          *    Access via channel # using indirect index array */
 723         struct iwl3945_channel_info *channel_info;      /* channel info array */
 724         u8 channel_count;       /* # of channels */
 725
 726         /* each calibration channel group in the EEPROM has a derived
 727          * clip setting for each rate. */
 728         const struct iwl3945_clip_group clip_groups[5];
 729
 730         /* thermal calibration */
 731         s32 temperature;        /* degrees Kelvin */
 732         s32 last_temperature;
 733
 734         /* Scan related variables */
 735         unsigned long last_scan_jiffies;
 736         unsigned long next_scan_jiffies;
 737         unsigned long scan_start;
 738         unsigned long scan_pass_start;
 739         unsigned long scan_start_tsf;
 740         int scan_bands;
 741         int one_direct_scan;
 742         u8 direct_ssid_len;
 743         u8 direct_ssid[IW_ESSID_MAX_SIZE];
 744         struct iwl3945_scan_cmd *scan;
 745
 746         /* spinlock */
 747         spinlock_t lock;        /* protect general shared data */
 748         spinlock_t hcmd_lock;   /* protect hcmd */
 749         struct mutex mutex;
 750
 751         /* basic pci-network driver stuff */
 752         struct pci_dev *pci_dev;
 753
 754         /* pci hardware address support */
 755         void __iomem *hw_base;
 756
 757         /* uCode images, save to reload in case of failure */
 758         struct fw_desc ucode_code;      /* runtime inst */
 759         struct fw_desc ucode_data;      /* runtime data original */
 760         struct fw_desc ucode_data_backup;       /* runtime data save/restore */
 761         struct fw_desc ucode_init;      /* initialization inst */
 762         struct fw_desc ucode_init_data; /* initialization data */
 763         struct fw_desc ucode_boot;      /* bootstrap inst */
 764
 765
 766         struct iwl3945_rxon_time_cmd rxon_timing;
 767
 768         /* We declare this const so it can only be
 769          * changed via explicit cast within the
 770          * routines that actually update the physical
 771          * hardware */
 772         const struct iwl3945_rxon_cmd active_rxon;
 773         struct iwl3945_rxon_cmd staging_rxon;
 774
 775         int error_recovering;
 776         struct iwl3945_rxon_cmd recovery_rxon;
 777
 778         /* 1st responses from initialize and runtime uCode images.
 779          * 4965's initialize alive response contains some calibration data. */
 780         struct iwl3945_init_alive_resp card_alive_init;
 781         struct iwl3945_alive_resp card_alive;
 782
 783 #ifdef CONFIG_IWL3945_LEDS
 784         struct iwl3945_led led[IWL_LED_TRG_MAX];
 785         unsigned long last_blink_time;
 786         u8 last_blink_rate;
 787         u8 allow_blinking;
 788         unsigned int rxtxpackets;
 789 #endif
 790
 791
 792         u16 active_rate;
 793         u16 active_rate_basic;
 794
 795         u8 call_post_assoc_from_beacon;
 796         /* Rate scaling data */
 797         s8 data_retry_limit;
 798         u8 retry_rate;
 799
 800         wait_queue_head_t wait_command_queue;
 801
 802         int activity_timer_active;
 803
 804         /* Rx and Tx DMA processing queues */
 805         struct iwl3945_rx_queue rxq;
 806         struct iwl3945_tx_queue txq[IWL_MAX_NUM_QUEUES];
 807
 808         unsigned long status;
 809
 810         int last_rx_rssi;       /* From Rx packet statisitics */
 811         int last_rx_noise;      /* From beacon statistics */
 812
 813         struct iwl3945_power_mgr power_data;
 814
 815         struct iwl3945_notif_statistics statistics;
 816         unsigned long last_statistics_time;
 817
 818         /* context information */
 819         u8 essid[IW_ESSID_MAX_SIZE];
 820         u8 essid_len;
 821         u16 rates_mask;
 822
 823         u32 power_mode;
 824         u32 antenna;
 825         u8 bssid[ETH_ALEN];
 826         u16 rts_threshold;
 827         u8 mac_addr[ETH_ALEN];
 828
 829         /*station table variables */
 830         spinlock_t sta_lock;
 831         int num_stations;
 832         struct iwl3945_station_entry stations[IWL_STATION_COUNT];
 833
 834         /* Indication if ieee80211_ops->open has been called */
 835         u8 is_open;
 836
 837         u8 mac80211_registered;
 838
 839         u32 notif_missed_beacons;
 840
 841         /* Rx'd packet timing information */
 842         u32 last_beacon_time;
 843         u64 last_tsf;
 844
 845         /* Duplicate packet detection */
 846         u16 last_seq_num;
 847         u16 last_frag_num;
 848         unsigned long last_packet_time;
 849
 850         /* Hash table for finding stations in IBSS network */
 851         struct list_head ibss_mac_hash[IWL_IBSS_MAC_HASH_SIZE];
 852
 853         /* eeprom */
 854         struct iwl3945_eeprom eeprom;
 855
 856         enum ieee80211_if_types 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         struct delayed_work post_associate;
 900
 901 #define IWL_DEFAULT_TX_POWER 0x0F
 902         s8 user_txpower_limit;
 903         s8 max_channel_txpower_limit;
 904
 905 #ifdef CONFIG_PM
 906         u32 pm_state[16];
 907 #endif
 908
 909 #ifdef CONFIG_IWL3945_DEBUG
 910         /* debugging info */
 911         u32 framecnt_to_us;
 912         atomic_t restrict_refcnt;
 913 #endif
 914 };                              /*iwl3945_priv */
 915
 916 static inline int iwl3945_is_associated(struct iwl3945_priv *priv)
 917 {
 918         return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
 919 }
 920
 921 static inline int is_channel_valid(const struct iwl3945_channel_info *ch_info)
 922 {
 923         if (ch_info == NULL)
 924                 return 0;
 925         return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
 926 }
 927
 928 static inline int is_channel_radar(const struct iwl3945_channel_info *ch_info)
 929 {
 930         return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
 931 }
 932
 933 static inline u8 is_channel_a_band(const struct iwl3945_channel_info *ch_info)
 934 {
 935         return ch_info->band == IEEE80211_BAND_5GHZ;
 936 }
 937
 938 static inline u8 is_channel_bg_band(const struct iwl3945_channel_info *ch_info)
 939 {
 940         return ch_info->band == IEEE80211_BAND_2GHZ;
 941 }
 942
 943 static inline int is_channel_passive(const struct iwl3945_channel_info *ch)
 944 {
 945         return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
 946 }
 947
 948 static inline int is_channel_ibss(const struct iwl3945_channel_info *ch)
 949 {
 950         return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
 951 }
 952
 953 extern const struct iwl3945_channel_info *iwl3945_get_channel_info(
 954         const struct iwl3945_priv *priv, enum ieee80211_band band, u16 channel);
 955
 956 /* Requires full declaration of iwl3945_priv before including */
 957 #include "iwl-3945-io.h"
 958
 959 #endif