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

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2003 - 2007 Intel Corporation. All rights reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of version 2 of the GNU General Public License as
   7  * published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12  * more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along with
  15  * this program; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
  17  *
  18  * The full GNU General Public License is included in this distribution in the
  19  * file called LICENSE.
  20  *
  21  * Contact Information:
  22  * James P. Ketrenos <ipw2100-admin@linux.intel.com>
  23  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  24  *
  25  *****************************************************************************/
  26 /*
  27  * Please use this file (iwl-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-3945-hw.h"
  44 #include "iwl-prph.h"
  45 #include "iwl-3945-debug.h"
  46
  47 /* Default noise level to report when noise measurement is not available.
  48  *   This may be because we're:
  49  *   1)  Not associated (4965, no beacon statistics being sent to driver)
  50  *   2)  Scanning (noise measurement does not apply to associated channel)
  51  *   3)  Receiving CCK (3945 delivers noise info only for OFDM frames)
  52  * Use default noise value of -127 ... this is below the range of measurable
  53  *   Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
  54  *   Also, -127 works better than 0 when averaging frames with/without
  55  *   noise info (e.g. averaging might be done in app); measured dBm values are
  56  *   always negative ... using a negative value as the default keeps all
  57  *   averages within an s8's (used in some apps) range of negative values. */
  58 #define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
  59
  60 /* Module parameters accessible from iwl-*.c */
  61 extern int iwl3945_param_hwcrypto;
  62 extern int iwl3945_param_queues_num;
  63
  64 enum iwl3945_antenna {
  65         IWL_ANTENNA_DIVERSITY,
  66         IWL_ANTENNA_MAIN,
  67         IWL_ANTENNA_AUX
  68 };
  69
  70 /*
  71  * RTS threshold here is total size [2347] minus 4 FCS bytes
  72  * Per spec:
  73  *   a value of 0 means RTS on all data/management packets
  74  *   a value > max MSDU size means no RTS
  75  * else RTS for data/management frames where MPDU is larger
  76  *   than RTS value.
  77  */
  78 #define IWL_RX_BUF_SIZE           3000U
  79 #define DEFAULT_RTS_THRESHOLD     2347U
  80 #define MIN_RTS_THRESHOLD         0U
  81 #define MAX_RTS_THRESHOLD         2347U
  82 #define MAX_MSDU_SIZE             2304U
  83 #define MAX_MPDU_SIZE             2346U
  84 #define DEFAULT_BEACON_INTERVAL   100U
  85 #define DEFAULT_SHORT_RETRY_LIMIT 7U
  86 #define DEFAULT_LONG_RETRY_LIMIT  4U
  87
  88 struct iwl3945_rx_mem_buffer {
  89         dma_addr_t dma_addr;
  90         struct sk_buff *skb;
  91         struct list_head list;
  92 };
  93
  94 /*
  95  * Generic queue structure
  96  *
  97  * Contains common data for Rx and Tx queues
  98  */
  99 struct iwl3945_queue {
 100         int n_bd;              /* number of BDs in this queue */
 101         int write_ptr;       /* 1-st empty entry (index) host_w*/
 102         int read_ptr;         /* last used entry (index) host_r*/
 103         dma_addr_t dma_addr;   /* physical addr for BD's */
 104         int n_window;          /* safe queue window */
 105         u32 id;
 106         int low_mark;          /* low watermark, resume queue if free
 107                                 * space more than this */
 108         int high_mark;         /* high watermark, stop queue if free
 109                                 * space less than this */
 110 } __attribute__ ((packed));
 111
 112 #define MAX_NUM_OF_TBS          (20)
 113
 114 /* One for each TFD */
 115 struct iwl3945_tx_info {
 116         struct ieee80211_tx_status status;
 117         struct sk_buff *skb[MAX_NUM_OF_TBS];
 118 };
 119
 120 /**
 121  * struct iwl3945_tx_queue - Tx Queue for DMA
 122  * @q: generic Rx/Tx queue descriptor
 123  * @bd: base of circular buffer of TFDs
 124  * @cmd: array of command/Tx buffers
 125  * @dma_addr_cmd: physical address of cmd/tx buffer array
 126  * @txb: array of per-TFD driver data
 127  * @need_update: indicates need to update read/write index
 128  *
 129  * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
 130  * descriptors) and required locking structures.
 131  */
 132 struct iwl3945_tx_queue {
 133         struct iwl3945_queue q;
 134         struct iwl3945_tfd_frame *bd;
 135         struct iwl3945_cmd *cmd;
 136         dma_addr_t dma_addr_cmd;
 137         struct iwl3945_tx_info *txb;
 138         int need_update;
 139         int active;
 140 };
 141
 142 #define IWL_NUM_SCAN_RATES         (2)
 143
 144 struct iwl3945_channel_tgd_info {
 145         u8 type;
 146         s8 max_power;
 147 };
 148
 149 struct iwl3945_channel_tgh_info {
 150         s64 last_radar_time;
 151 };
 152
 153 /* current Tx power values to use, one for each rate for each channel.
 154  * requested power is limited by:
 155  * -- regulatory EEPROM limits for this channel
 156  * -- hardware capabilities (clip-powers)
 157  * -- spectrum management
 158  * -- user preference (e.g. iwconfig)
 159  * when requested power is set, base power index must also be set. */
 160 struct iwl3945_channel_power_info {
 161         struct iwl3945_tx_power tpc;    /* actual radio and DSP gain settings */
 162         s8 power_table_index;   /* actual (compenst'd) index into gain table */
 163         s8 base_power_index;    /* gain index for power at factory temp. */
 164         s8 requested_power;     /* power (dBm) requested for this chnl/rate */
 165 };
 166
 167 /* current scan Tx power values to use, one for each scan rate for each
 168  * channel. */
 169 struct iwl3945_scan_power_info {
 170         struct iwl3945_tx_power tpc;    /* actual radio and DSP gain settings */
 171         s8 power_table_index;   /* actual (compenst'd) index into gain table */
 172         s8 requested_power;     /* scan pwr (dBm) requested for chnl/rate */
 173 };
 174
 175 /*
 176  * One for each channel, holds all channel setup data
 177  * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
 178  *     with one another!
 179  */
 180 #define IWL4965_MAX_RATE (33)
 181
 182 struct iwl3945_channel_info {
 183         struct iwl3945_channel_tgd_info tgd;
 184         struct iwl3945_channel_tgh_info tgh;
 185         struct iwl3945_eeprom_channel eeprom;   /* EEPROM regulatory limit */
 186         struct iwl3945_eeprom_channel fat_eeprom;       /* EEPROM regulatory limit for
 187                                                  * FAT channel */
 188
 189         u8 channel;       /* channel number */
 190         u8 flags;         /* flags copied from EEPROM */
 191         s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
 192         s8 curr_txpow;    /* (dBm) regulatory/spectrum/user (not h/w) */
 193         s8 min_power;     /* always 0 */
 194         s8 scan_power;    /* (dBm) regul. eeprom, direct scans, any rate */
 195
 196         u8 group_index;   /* 0-4, maps channel to group1/2/3/4/5 */
 197         u8 band_index;    /* 0-4, maps channel to band1/2/3/4/5 */
 198         enum ieee80211_band band;
 199
 200         /* Radio/DSP gain settings for each "normal" data Tx rate.
 201          * These include, in addition to RF and DSP gain, a few fields for
 202          *   remembering/modifying gain settings (indexes). */
 203         struct iwl3945_channel_power_info power_info[IWL4965_MAX_RATE];
 204
 205         /* Radio/DSP gain settings for each scan rate, for directed scans. */
 206         struct iwl3945_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES];
 207 };
 208
 209 struct iwl3945_clip_group {
 210         /* maximum power level to prevent clipping for each rate, derived by
 211          *   us from this band's saturation power in EEPROM */
 212         const s8 clip_powers[IWL_MAX_RATES];
 213 };
 214
 215 #include "iwl-3945-rs.h"
 216
 217 #define IWL_TX_FIFO_AC0 0
 218 #define IWL_TX_FIFO_AC1 1
 219 #define IWL_TX_FIFO_AC2 2
 220 #define IWL_TX_FIFO_AC3 3
 221 #define IWL_TX_FIFO_HCCA_1      5
 222 #define IWL_TX_FIFO_HCCA_2      6
 223 #define IWL_TX_FIFO_NONE        7
 224
 225 /* Minimum number of queues. MAX_NUM is defined in hw specific files */
 226 #define IWL_MIN_NUM_QUEUES      4
 227
 228 /* Power management (not Tx power) structures */
 229
 230 struct iwl3945_power_vec_entry {
 231         struct iwl3945_powertable_cmd cmd;
 232         u8 no_dtim;
 233 };
 234 #define IWL_POWER_RANGE_0  (0)
 235 #define IWL_POWER_RANGE_1  (1)
 236
 237 #define IWL_POWER_MODE_CAM      0x00    /* Continuously Aware Mode, always on */
 238 #define IWL_POWER_INDEX_3       0x03
 239 #define IWL_POWER_INDEX_5       0x05
 240 #define IWL_POWER_AC            0x06
 241 #define IWL_POWER_BATTERY       0x07
 242 #define IWL_POWER_LIMIT         0x07
 243 #define IWL_POWER_MASK          0x0F
 244 #define IWL_POWER_ENABLED       0x10
 245 #define IWL_POWER_LEVEL(x)      ((x) & IWL_POWER_MASK)
 246
 247 struct iwl3945_power_mgr {
 248         spinlock_t lock;
 249         struct iwl3945_power_vec_entry pwr_range_0[IWL_POWER_AC];
 250         struct iwl3945_power_vec_entry pwr_range_1[IWL_POWER_AC];
 251         u8 active_index;
 252         u32 dtim_val;
 253 };
 254
 255 #define IEEE80211_DATA_LEN              2304
 256 #define IEEE80211_4ADDR_LEN             30
 257 #define IEEE80211_HLEN                  (IEEE80211_4ADDR_LEN)
 258 #define IEEE80211_FRAME_LEN             (IEEE80211_DATA_LEN + IEEE80211_HLEN)
 259
 260 struct iwl3945_frame {
 261         union {
 262                 struct ieee80211_hdr frame;
 263                 struct iwl3945_tx_beacon_cmd beacon;
 264                 u8 raw[IEEE80211_FRAME_LEN];
 265                 u8 cmd[360];
 266         } u;
 267         struct list_head list;
 268 };
 269
 270 #define SEQ_TO_QUEUE(x)  ((x >> 8) & 0xbf)
 271 #define QUEUE_TO_SEQ(x)  ((x & 0xbf) << 8)
 272 #define SEQ_TO_INDEX(x) (x & 0xff)
 273 #define INDEX_TO_SEQ(x) (x & 0xff)
 274 #define SEQ_HUGE_FRAME  (0x4000)
 275 #define SEQ_RX_FRAME    __constant_cpu_to_le16(0x8000)
 276 #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
 277 #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
 278 #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
 279
 280 enum {
 281         /* CMD_SIZE_NORMAL = 0, */
 282         CMD_SIZE_HUGE = (1 << 0),
 283         /* CMD_SYNC = 0, */
 284         CMD_ASYNC = (1 << 1),
 285         /* CMD_NO_SKB = 0, */
 286         CMD_WANT_SKB = (1 << 2),
 287 };
 288
 289 struct iwl3945_cmd;
 290 struct iwl3945_priv;
 291
 292 struct iwl3945_cmd_meta {
 293         struct iwl3945_cmd_meta *source;
 294         union {
 295                 struct sk_buff *skb;
 296                 int (*callback)(struct iwl3945_priv *priv,
 297                                 struct iwl3945_cmd *cmd, struct sk_buff *skb);
 298         } __attribute__ ((packed)) u;
 299
 300         /* The CMD_SIZE_HUGE flag bit indicates that the command
 301          * structure is stored at the end of the shared queue memory. */
 302         u32 flags;
 303
 304 } __attribute__ ((packed));
 305
 306 /**
 307  * struct iwl3945_cmd
 308  *
 309  * For allocation of the command and tx queues, this establishes the overall
 310  * size of the largest command we send to uCode, except for a scan command
 311  * (which is relatively huge; space is allocated separately).
 312  */
 313 struct iwl3945_cmd {
 314         struct iwl3945_cmd_meta meta;
 315         struct iwl3945_cmd_header hdr;
 316         union {
 317                 struct iwl3945_addsta_cmd addsta;
 318                 struct iwl3945_led_cmd led;
 319                 u32 flags;
 320                 u8 val8;
 321                 u16 val16;
 322                 u32 val32;
 323                 struct iwl3945_bt_cmd bt;
 324                 struct iwl3945_rxon_time_cmd rxon_time;
 325                 struct iwl3945_powertable_cmd powertable;
 326                 struct iwl3945_qosparam_cmd qosparam;
 327                 struct iwl3945_tx_cmd tx;
 328                 struct iwl3945_tx_beacon_cmd tx_beacon;
 329                 struct iwl3945_rxon_assoc_cmd rxon_assoc;
 330                 u8 *indirect;
 331                 u8 payload[360];
 332         } __attribute__ ((packed)) cmd;
 333 } __attribute__ ((packed));
 334
 335 struct iwl3945_host_cmd {
 336         u8 id;
 337         u16 len;
 338         struct iwl3945_cmd_meta meta;
 339         const void *data;
 340 };
 341
 342 #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl3945_cmd) - \
 343                               sizeof(struct iwl3945_cmd_meta))
 344
 345 /*
 346  * RX related structures and functions
 347  */
 348 #define RX_FREE_BUFFERS 64
 349 #define RX_LOW_WATERMARK 8
 350
 351 #define SUP_RATE_11A_MAX_NUM_CHANNELS  8
 352 #define SUP_RATE_11B_MAX_NUM_CHANNELS  4
 353 #define SUP_RATE_11G_MAX_NUM_CHANNELS  12
 354
 355 /**
 356  * struct iwl3945_rx_queue - Rx queue
 357  * @processed: Internal index to last handled Rx packet
 358  * @read: Shared index to newest available Rx buffer
 359  * @write: Shared index to oldest written Rx packet
 360  * @free_count: Number of pre-allocated buffers in rx_free
 361  * @rx_free: list of free SKBs for use
 362  * @rx_used: List of Rx buffers with no SKB
 363  * @need_update: flag to indicate we need to update read/write index
 364  *
 365  * NOTE:  rx_free and rx_used are used as a FIFO for iwl3945_rx_mem_buffers
 366  */
 367 struct iwl3945_rx_queue {
 368         __le32 *bd;
 369         dma_addr_t dma_addr;
 370         struct iwl3945_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
 371         struct iwl3945_rx_mem_buffer *queue[RX_QUEUE_SIZE];
 372         u32 processed;
 373         u32 read;
 374         u32 write;
 375         u32 free_count;
 376         struct list_head rx_free;
 377         struct list_head rx_used;
 378         int need_update;
 379         spinlock_t lock;
 380 };
 381
 382 #define IWL_SUPPORTED_RATES_IE_LEN         8
 383
 384 #define SCAN_INTERVAL 100
 385
 386 #define MAX_A_CHANNELS  252
 387 #define MIN_A_CHANNELS  7
 388
 389 #define MAX_B_CHANNELS  14
 390 #define MIN_B_CHANNELS  1
 391
 392 #define STATUS_HCMD_ACTIVE      0       /* host command in progress */
 393 #define STATUS_INT_ENABLED      1
 394 #define STATUS_RF_KILL_HW       2
 395 #define STATUS_RF_KILL_SW       3
 396 #define STATUS_INIT             4
 397 #define STATUS_ALIVE            5
 398 #define STATUS_READY            6
 399 #define STATUS_TEMPERATURE      7
 400 #define STATUS_GEO_CONFIGURED   8
 401 #define STATUS_EXIT_PENDING     9
 402 #define STATUS_IN_SUSPEND       10
 403 #define STATUS_STATISTICS       11
 404 #define STATUS_SCANNING         12
 405 #define STATUS_SCAN_ABORTING    13
 406 #define STATUS_SCAN_HW          14
 407 #define STATUS_POWER_PMI        15
 408 #define STATUS_FW_ERROR         16
 409 #define STATUS_CONF_PENDING     17
 410
 411 #define MAX_TID_COUNT        9
 412
 413 #define IWL_INVALID_RATE     0xFF
 414 #define IWL_INVALID_VALUE    -1
 415
 416 struct iwl3945_tid_data {
 417         u16 seq_number;
 418 };
 419
 420 struct iwl3945_hw_key {
 421         enum ieee80211_key_alg alg;
 422         int keylen;
 423         u8 key[32];
 424 };
 425
 426 union iwl3945_ht_rate_supp {
 427         u16 rates;
 428         struct {
 429                 u8 siso_rate;
 430                 u8 mimo_rate;
 431         };
 432 };
 433
 434 #ifdef CONFIG_IWL3945_QOS
 435
 436 union iwl3945_qos_capabity {
 437         struct {
 438                 u8 edca_count:4;        /* bit 0-3 */
 439                 u8 q_ack:1;             /* bit 4 */
 440                 u8 queue_request:1;     /* bit 5 */
 441                 u8 txop_request:1;      /* bit 6 */
 442                 u8 reserved:1;          /* bit 7 */
 443         } q_AP;
 444         struct {
 445                 u8 acvo_APSD:1;         /* bit 0 */
 446                 u8 acvi_APSD:1;         /* bit 1 */
 447                 u8 ac_bk_APSD:1;        /* bit 2 */
 448                 u8 ac_be_APSD:1;        /* bit 3 */
 449                 u8 q_ack:1;             /* bit 4 */
 450                 u8 max_len:2;           /* bit 5-6 */
 451                 u8 more_data_ack:1;     /* bit 7 */
 452         } q_STA;
 453         u8 val;
 454 };
 455
 456 /* QoS structures */
 457 struct iwl3945_qos_info {
 458         int qos_enable;
 459         int qos_active;
 460         union iwl3945_qos_capabity qos_cap;
 461         struct iwl3945_qosparam_cmd def_qos_parm;
 462 };
 463 #endif /*CONFIG_IWL3945_QOS */
 464
 465 #define STA_PS_STATUS_WAKE             0
 466 #define STA_PS_STATUS_SLEEP            1
 467
 468 struct iwl3945_station_entry {
 469         struct iwl3945_addsta_cmd sta;
 470         struct iwl3945_tid_data tid[MAX_TID_COUNT];
 471         union {
 472                 struct {
 473                         u8 rate;
 474                         u8 flags;
 475                 } s;
 476                 u16 rate_n_flags;
 477         } current_rate;
 478         u8 used;
 479         u8 ps_status;
 480         struct iwl3945_hw_key keyinfo;
 481 };
 482
 483 /* one for each uCode image (inst/data, boot/init/runtime) */
 484 struct fw_desc {
 485         void *v_addr;           /* access by driver */
 486         dma_addr_t p_addr;      /* access by card's busmaster DMA */
 487         u32 len;                /* bytes */
 488 };
 489
 490 /* uCode file layout */
 491 struct iwl3945_ucode {
 492         __le32 ver;             /* major/minor/subminor */
 493         __le32 inst_size;       /* bytes of runtime instructions */
 494         __le32 data_size;       /* bytes of runtime data */
 495         __le32 init_size;       /* bytes of initialization instructions */
 496         __le32 init_data_size;  /* bytes of initialization data */
 497         __le32 boot_size;       /* bytes of bootstrap instructions */
 498         u8 data[0];             /* data in same order as "size" elements */
 499 };
 500
 501 #define IWL_IBSS_MAC_HASH_SIZE 32
 502
 503 struct iwl3945_ibss_seq {
 504         u8 mac[ETH_ALEN];
 505         u16 seq_num;
 506         u16 frag_num;
 507         unsigned long packet_time;
 508         struct list_head list;
 509 };
 510
 511 /**
 512  * struct iwl3945_driver_hw_info
 513  * @max_txq_num: Max # Tx queues supported
 514  * @ac_queue_count: # Tx queues for EDCA Access Categories (AC)
 515  * @tx_cmd_len: Size of Tx command (but not including frame itself)
 516  * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
 517  * @rx_buf_size:
 518  * @max_pkt_size:
 519  * @max_rxq_log: Log-base-2 of max_rxq_size
 520  * @max_stations:
 521  * @bcast_sta_id:
 522  * @shared_virt: Pointer to driver/uCode shared Tx Byte Counts and Rx status
 523  * @shared_phys: Physical Pointer to Tx Byte Counts and Rx status
 524  */
 525 struct iwl3945_driver_hw_info {
 526         u16 max_txq_num;
 527         u16 ac_queue_count;
 528         u16 tx_cmd_len;
 529         u16 max_rxq_size;
 530         u32 rx_buf_size;
 531         u32 max_pkt_size;
 532         u16 max_rxq_log;
 533         u8  max_stations;
 534         u8  bcast_sta_id;
 535         void *shared_virt;
 536         dma_addr_t shared_phys;
 537 };
 538
 539 #define IWL_RX_HDR(x) ((struct iwl3945_rx_frame_hdr *)(\
 540                        x->u.rx_frame.stats.payload + \
 541                        x->u.rx_frame.stats.phy_count))
 542 #define IWL_RX_END(x) ((struct iwl3945_rx_frame_end *)(\
 543                        IWL_RX_HDR(x)->payload + \
 544                        le16_to_cpu(IWL_RX_HDR(x)->len)))
 545 #define IWL_RX_STATS(x) (&x->u.rx_frame.stats)
 546 #define IWL_RX_DATA(x) (IWL_RX_HDR(x)->payload)
 547
 548
 549 /******************************************************************************
 550  *
 551  * Functions implemented in iwl-base.c which are forward declared here
 552  * for use by iwl-*.c
 553  *
 554  *****************************************************************************/
 555 struct iwl3945_addsta_cmd;
 556 extern int iwl3945_send_add_station(struct iwl3945_priv *priv,
 557                                 struct iwl3945_addsta_cmd *sta, u8 flags);
 558 extern u8 iwl3945_add_station(struct iwl3945_priv *priv, const u8 *bssid,
 559                           int is_ap, u8 flags);
 560 extern int iwl3945_is_network_packet(struct iwl3945_priv *priv,
 561                                  struct ieee80211_hdr *header);
 562 extern int iwl3945_power_init_handle(struct iwl3945_priv *priv);
 563 extern int iwl3945_eeprom_init(struct iwl3945_priv *priv);
 564 #ifdef CONFIG_IWL3945_DEBUG
 565 extern void iwl3945_report_frame(struct iwl3945_priv *priv,
 566                              struct iwl3945_rx_packet *pkt,
 567                              struct ieee80211_hdr *header, int group100);
 568 #else
 569 static inline void iwl3945_report_frame(struct iwl3945_priv *priv,
 570                                     struct iwl3945_rx_packet *pkt,
 571                                     struct ieee80211_hdr *header,
 572                                     int group100) {}
 573 #endif
 574 extern void iwl3945_handle_data_packet_monitor(struct iwl3945_priv *priv,
 575                                            struct iwl3945_rx_mem_buffer *rxb,
 576                                            void *data, short len,
 577                                            struct ieee80211_rx_status *stats,
 578                                            u16 phy_flags);
 579 extern int iwl3945_is_duplicate_packet(struct iwl3945_priv *priv,
 580                                        struct ieee80211_hdr *header);
 581 extern int iwl3945_rx_queue_alloc(struct iwl3945_priv *priv);
 582 extern void iwl3945_rx_queue_reset(struct iwl3945_priv *priv,
 583                                struct iwl3945_rx_queue *rxq);
 584 extern int iwl3945_calc_db_from_ratio(int sig_ratio);
 585 extern int iwl3945_calc_sig_qual(int rssi_dbm, int noise_dbm);
 586 extern int iwl3945_tx_queue_init(struct iwl3945_priv *priv,
 587                              struct iwl3945_tx_queue *txq, int count, u32 id);
 588 extern void iwl3945_rx_replenish(void *data);
 589 extern void iwl3945_tx_queue_free(struct iwl3945_priv *priv, struct iwl3945_tx_queue *txq);
 590 extern int iwl3945_send_cmd_pdu(struct iwl3945_priv *priv, u8 id, u16 len,
 591                             const void *data);
 592 extern int __must_check iwl3945_send_cmd(struct iwl3945_priv *priv,
 593                 struct iwl3945_host_cmd *cmd);
 594 extern unsigned int iwl3945_fill_beacon_frame(struct iwl3945_priv *priv,
 595                                         struct ieee80211_hdr *hdr,
 596                                         const u8 *dest, int left);
 597 extern int iwl3945_rx_queue_update_write_ptr(struct iwl3945_priv *priv,
 598                                          struct iwl3945_rx_queue *q);
 599 extern int iwl3945_send_statistics_request(struct iwl3945_priv *priv);
 600 extern void iwl3945_set_decrypted_flag(struct iwl3945_priv *priv, struct sk_buff *skb,
 601                                    u32 decrypt_res,
 602                                    struct ieee80211_rx_status *stats);
 603 extern const u8 iwl3945_broadcast_addr[ETH_ALEN];
 604
 605 /*
 606  * Currently used by iwl-3945-rs... look at restructuring so that it doesn't
 607  * call this... todo... fix that.
 608 */
 609 extern u8 iwl3945_sync_station(struct iwl3945_priv *priv, int sta_id,
 610                            u16 tx_rate, u8 flags);
 611
 612 /******************************************************************************
 613  *
 614  * Functions implemented in iwl-[34]*.c which are forward declared here
 615  * for use by iwl-base.c
 616  *
 617  * NOTE:  The implementation of these functions are hardware specific
 618  * which is why they are in the hardware specific files (vs. iwl-base.c)
 619  *
 620  * Naming convention --
 621  * iwl3945_         <-- Its part of iwlwifi (should be changed to iwl3945_)
 622  * iwl3945_hw_      <-- Hardware specific (implemented in iwl-XXXX.c by all HW)
 623  * iwlXXXX_     <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
 624  * iwl3945_bg_      <-- Called from work queue context
 625  * iwl3945_mac_     <-- mac80211 callback
 626  *
 627  ****************************************************************************/
 628 extern void iwl3945_hw_rx_handler_setup(struct iwl3945_priv *priv);
 629 extern void iwl3945_hw_setup_deferred_work(struct iwl3945_priv *priv);
 630 extern void iwl3945_hw_cancel_deferred_work(struct iwl3945_priv *priv);
 631 extern int iwl3945_hw_rxq_stop(struct iwl3945_priv *priv);
 632 extern int iwl3945_hw_set_hw_setting(struct iwl3945_priv *priv);
 633 extern int iwl3945_hw_nic_init(struct iwl3945_priv *priv);
 634 extern int iwl3945_hw_nic_stop_master(struct iwl3945_priv *priv);
 635 extern void iwl3945_hw_txq_ctx_free(struct iwl3945_priv *priv);
 636 extern void iwl3945_hw_txq_ctx_stop(struct iwl3945_priv *priv);
 637 extern int iwl3945_hw_nic_reset(struct iwl3945_priv *priv);
 638 extern int iwl3945_hw_txq_attach_buf_to_tfd(struct iwl3945_priv *priv, void *tfd,
 639                                         dma_addr_t addr, u16 len);
 640 extern int iwl3945_hw_txq_free_tfd(struct iwl3945_priv *priv, struct iwl3945_tx_queue *txq);
 641 extern int iwl3945_hw_get_temperature(struct iwl3945_priv *priv);
 642 extern int iwl3945_hw_tx_queue_init(struct iwl3945_priv *priv,
 643                                 struct iwl3945_tx_queue *txq);
 644 extern unsigned int iwl3945_hw_get_beacon_cmd(struct iwl3945_priv *priv,
 645                                  struct iwl3945_frame *frame, u8 rate);
 646 extern int iwl3945_hw_get_rx_read(struct iwl3945_priv *priv);
 647 extern void iwl3945_hw_build_tx_cmd_rate(struct iwl3945_priv *priv,
 648                                      struct iwl3945_cmd *cmd,
 649                                      struct ieee80211_tx_control *ctrl,
 650                                      struct ieee80211_hdr *hdr,
 651                                      int sta_id, int tx_id);
 652 extern int iwl3945_hw_reg_send_txpower(struct iwl3945_priv *priv);
 653 extern int iwl3945_hw_reg_set_txpower(struct iwl3945_priv *priv, s8 power);
 654 extern void iwl3945_hw_rx_statistics(struct iwl3945_priv *priv,
 655                                  struct iwl3945_rx_mem_buffer *rxb);
 656 extern void iwl3945_disable_events(struct iwl3945_priv *priv);
 657 extern int iwl4965_get_temperature(const struct iwl3945_priv *priv);
 658
 659 /**
 660  * iwl3945_hw_find_station - Find station id for a given BSSID
 661  * @bssid: MAC address of station ID to find
 662  *
 663  * NOTE:  This should not be hardware specific but the code has
 664  * not yet been merged into a single common layer for managing the
 665  * station tables.
 666  */
 667 extern u8 iwl3945_hw_find_station(struct iwl3945_priv *priv, const u8 *bssid);
 668
 669 extern int iwl3945_hw_channel_switch(struct iwl3945_priv *priv, u16 channel);
 670
 671 /*
 672  * Forward declare iwl-3945.c functions for iwl-base.c
 673  */
 674 extern __le32 iwl3945_get_antenna_flags(const struct iwl3945_priv *priv);
 675 extern int iwl3945_init_hw_rate_table(struct iwl3945_priv *priv);
 676 extern void iwl3945_reg_txpower_periodic(struct iwl3945_priv *priv);
 677 extern int iwl3945_txpower_set_from_eeprom(struct iwl3945_priv *priv);
 678 extern u8 iwl3945_sync_sta(struct iwl3945_priv *priv, int sta_id,
 679                  u16 tx_rate, u8 flags);
 680
 681
 682 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
 683
 684 enum {
 685         MEASUREMENT_READY = (1 << 0),
 686         MEASUREMENT_ACTIVE = (1 << 1),
 687 };
 688
 689 #endif
 690
 691 struct iwl3945_priv {
 692
 693         /* ieee device used by generic ieee processing code */
 694         struct ieee80211_hw *hw;
 695         struct ieee80211_channel *ieee_channels;
 696         struct ieee80211_rate *ieee_rates;
 697
 698         /* temporary frame storage list */
 699         struct list_head free_frames;
 700         int frames_count;
 701
 702         enum ieee80211_band band;
 703         int alloc_rxb_skb;
 704         bool add_radiotap;
 705
 706         void (*rx_handlers[REPLY_MAX])(struct iwl3945_priv *priv,
 707                                        struct iwl3945_rx_mem_buffer *rxb);
 708
 709         struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
 710
 711 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
 712         /* spectrum measurement report caching */
 713         struct iwl3945_spectrum_notification measure_report;
 714         u8 measurement_status;
 715 #endif
 716         /* ucode beacon time */
 717         u32 ucode_beacon_time;
 718
 719         /* we allocate array of iwl3945_channel_info for NIC's valid channels.
 720          *    Access via channel # using indirect index array */
 721         struct iwl3945_channel_info *channel_info;      /* channel info array */
 722         u8 channel_count;       /* # of channels */
 723
 724         /* each calibration channel group in the EEPROM has a derived
 725          * clip setting for each rate. */
 726         const struct iwl3945_clip_group clip_groups[5];
 727
 728         /* thermal calibration */
 729         s32 temperature;        /* degrees Kelvin */
 730         s32 last_temperature;
 731
 732         /* Scan related variables */
 733         unsigned long last_scan_jiffies;
 734         unsigned long next_scan_jiffies;
 735         unsigned long scan_start;
 736         unsigned long scan_pass_start;
 737         unsigned long scan_start_tsf;
 738         int scan_bands;
 739         int one_direct_scan;
 740         u8 direct_ssid_len;
 741         u8 direct_ssid[IW_ESSID_MAX_SIZE];
 742         struct iwl3945_scan_cmd *scan;
 743         u8 only_active_channel;
 744
 745         /* spinlock */
 746         spinlock_t lock;        /* protect general shared data */
 747         spinlock_t hcmd_lock;   /* protect hcmd */
 748         struct mutex mutex;
 749
 750         /* basic pci-network driver stuff */
 751         struct pci_dev *pci_dev;
 752
 753         /* pci hardware address support */
 754         void __iomem *hw_base;
 755
 756         /* uCode images, save to reload in case of failure */
 757         struct fw_desc ucode_code;      /* runtime inst */
 758         struct fw_desc ucode_data;      /* runtime data original */
 759         struct fw_desc ucode_data_backup;       /* runtime data save/restore */
 760         struct fw_desc ucode_init;      /* initialization inst */
 761         struct fw_desc ucode_init_data; /* initialization data */
 762         struct fw_desc ucode_boot;      /* bootstrap inst */
 763
 764
 765         struct iwl3945_rxon_time_cmd rxon_timing;
 766
 767         /* We declare this const so it can only be
 768          * changed via explicit cast within the
 769          * routines that actually update the physical
 770          * hardware */
 771         const struct iwl3945_rxon_cmd active_rxon;
 772         struct iwl3945_rxon_cmd staging_rxon;
 773
 774         int error_recovering;
 775         struct iwl3945_rxon_cmd recovery_rxon;
 776
 777         /* 1st responses from initialize and runtime uCode images.
 778          * 4965's initialize alive response contains some calibration data. */
 779         struct iwl3945_init_alive_resp card_alive_init;
 780         struct iwl3945_alive_resp card_alive;
 781
 782 #ifdef LED
 783         /* LED related variables */
 784         struct iwl3945_activity_blink activity;
 785         unsigned long led_packets;
 786         int led_state;
 787 #endif
 788
 789         u16 active_rate;
 790         u16 active_rate_basic;
 791
 792         u8 call_post_assoc_from_beacon;
 793         /* Rate scaling data */
 794         s8 data_retry_limit;
 795         u8 retry_rate;
 796
 797         wait_queue_head_t wait_command_queue;
 798
 799         int activity_timer_active;
 800
 801         /* Rx and Tx DMA processing queues */
 802         struct iwl3945_rx_queue rxq;
 803         struct iwl3945_tx_queue txq[IWL_MAX_NUM_QUEUES];
 804
 805         unsigned long status;
 806         u32 config;
 807
 808         int last_rx_rssi;       /* From Rx packet statisitics */
 809         int last_rx_noise;      /* From beacon statistics */
 810
 811         struct iwl3945_power_mgr power_data;
 812
 813         struct iwl3945_notif_statistics statistics;
 814         unsigned long last_statistics_time;
 815
 816         /* context information */
 817         u8 essid[IW_ESSID_MAX_SIZE];
 818         u8 essid_len;
 819         u16 rates_mask;
 820
 821         u32 power_mode;
 822         u32 antenna;
 823         u8 bssid[ETH_ALEN];
 824         u16 rts_threshold;
 825         u8 mac_addr[ETH_ALEN];
 826
 827         /*station table variables */
 828         spinlock_t sta_lock;
 829         int num_stations;
 830         struct iwl3945_station_entry stations[IWL_STATION_COUNT];
 831
 832         /* Indication if ieee80211_ops->open has been called */
 833         int is_open;
 834
 835         u8 mac80211_registered;
 836         int is_abg;
 837
 838         u32 notif_missed_beacons;
 839
 840         /* Rx'd packet timing information */
 841         u32 last_beacon_time;
 842         u64 last_tsf;
 843
 844         /* Duplicate packet detection */
 845         u16 last_seq_num;
 846         u16 last_frag_num;
 847         unsigned long last_packet_time;
 848
 849         /* Hash table for finding stations in IBSS network */
 850         struct list_head ibss_mac_hash[IWL_IBSS_MAC_HASH_SIZE];
 851
 852         /* eeprom */
 853         struct iwl3945_eeprom eeprom;
 854
 855         int iw_mode;
 856
 857         struct sk_buff *ibss_beacon;
 858
 859         /* Last Rx'd beacon timestamp */
 860         u32 timestamp0;
 861         u32 timestamp1;
 862         u16 beacon_int;
 863         struct iwl3945_driver_hw_info hw_setting;
 864         struct ieee80211_vif *vif;
 865
 866         /* Current association information needed to configure the
 867          * hardware */
 868         u16 assoc_id;
 869         u16 assoc_capability;
 870         u8 ps_mode;
 871
 872 #ifdef CONFIG_IWL3945_QOS
 873         struct iwl3945_qos_info qos_data;
 874 #endif /*CONFIG_IWL3945_QOS */
 875
 876         struct workqueue_struct *workqueue;
 877
 878         struct work_struct up;
 879         struct work_struct restart;
 880         struct work_struct calibrated_work;
 881         struct work_struct scan_completed;
 882         struct work_struct rx_replenish;
 883         struct work_struct rf_kill;
 884         struct work_struct abort_scan;
 885         struct work_struct update_link_led;
 886         struct work_struct auth_work;
 887         struct work_struct report_work;
 888         struct work_struct request_scan;
 889         struct work_struct beacon_update;
 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_narrow(const struct iwl3945_channel_info *ch_info)
 929 {
 930         return (ch_info->flags & EEPROM_CHANNEL_NARROW) ? 1 : 0;
 931 }
 932
 933 static inline int is_channel_radar(const struct iwl3945_channel_info *ch_info)
 934 {
 935         return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
 936 }
 937
 938 static inline u8 is_channel_a_band(const struct iwl3945_channel_info *ch_info)
 939 {
 940         return ch_info->band == IEEE80211_BAND_5GHZ;
 941 }
 942
 943 static inline u8 is_channel_bg_band(const struct iwl3945_channel_info *ch_info)
 944 {
 945         return ch_info->band == IEEE80211_BAND_2GHZ;
 946 }
 947
 948 static inline int is_channel_passive(const struct iwl3945_channel_info *ch)
 949 {
 950         return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
 951 }
 952
 953 static inline int is_channel_ibss(const struct iwl3945_channel_info *ch)
 954 {
 955         return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
 956 }
 957
 958 static inline int iwl3945_rate_index_from_plcp(int plcp)
 959 {
 960         int i;
 961
 962         for (i = 0; i < IWL_RATE_COUNT; i++)
 963                 if (iwl3945_rates[i].plcp == plcp)
 964                         return i;
 965         return -1;
 966 }
 967
 968 extern const struct iwl3945_channel_info *iwl3945_get_channel_info(
 969         const struct iwl3945_priv *priv, enum ieee80211_band band, u16 channel);
 970
 971 /* Requires full declaration of iwl3945_priv before including */
 972 #include "iwl-3945-io.h"
 973
 974 #endif