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  *  Intel Linux Wireless <ilw@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 #include "iwl-csr.h"
  47 #include "iwl-prph.h"
  48 #include "iwl-3945-hw.h"
  49 #include "iwl-debug.h"
  50 #include "iwl-3945-led.h"
  51
  52 /* Highest firmware API version supported */
  53 #define IWL3945_UCODE_API_MAX 2
  54
  55 /* Lowest firmware API version supported */
  56 #define IWL3945_UCODE_API_MIN 1
  57
  58 #define IWL3945_FW_PRE  "iwlwifi-3945-"
  59 #define _IWL3945_MODULE_FIRMWARE(api) IWL3945_FW_PRE #api ".ucode"
  60 #define IWL3945_MODULE_FIRMWARE(api) _IWL3945_MODULE_FIRMWARE(api)
  61
  62 /* Default noise level to report when noise measurement is not available.
  63  *   This may be because we're:
  64  *   1)  Not associated (4965, no beacon statistics being sent to driver)
  65  *   2)  Scanning (noise measurement does not apply to associated channel)
  66  *   3)  Receiving CCK (3945 delivers noise info only for OFDM frames)
  67  * Use default noise value of -127 ... this is below the range of measurable
  68  *   Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
  69  *   Also, -127 works better than 0 when averaging frames with/without
  70  *   noise info (e.g. averaging might be done in app); measured dBm values are
  71  *   always negative ... using a negative value as the default keeps all
  72  *   averages within an s8's (used in some apps) range of negative values. */
  73 #define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
  74
  75 /* Module parameters accessible from iwl-*.c */
  76 extern int iwl3945_param_hwcrypto;
  77 extern int iwl3945_param_queues_num;
  78
  79 struct iwl3945_sta_priv {
  80         struct iwl3945_rs_sta *rs_sta;
  81 };
  82
  83 enum iwl3945_antenna {
  84         IWL_ANTENNA_DIVERSITY,
  85         IWL_ANTENNA_MAIN,
  86         IWL_ANTENNA_AUX
  87 };
  88
  89 /*
  90  * RTS threshold here is total size [2347] minus 4 FCS bytes
  91  * Per spec:
  92  *   a value of 0 means RTS on all data/management packets
  93  *   a value > max MSDU size means no RTS
  94  * else RTS for data/management frames where MPDU is larger
  95  *   than RTS value.
  96  */
  97 #define IWL_RX_BUF_SIZE           3000U
  98 #define DEFAULT_RTS_THRESHOLD     2347U
  99 #define MIN_RTS_THRESHOLD         0U
 100 #define MAX_RTS_THRESHOLD         2347U
 101 #define MAX_MSDU_SIZE             2304U
 102 #define MAX_MPDU_SIZE             2346U
 103 #define DEFAULT_BEACON_INTERVAL   100U
 104 #define DEFAULT_SHORT_RETRY_LIMIT 7U
 105 #define DEFAULT_LONG_RETRY_LIMIT  4U
 106
 107 struct iwl3945_rx_mem_buffer {
 108         dma_addr_t dma_addr;
 109         struct sk_buff *skb;
 110         struct list_head list;
 111 };
 112
 113 /*
 114  * Generic queue structure
 115  *
 116  * Contains common data for Rx and Tx queues
 117  */
 118 struct iwl3945_queue {
 119         int n_bd;              /* number of BDs in this queue */
 120         int write_ptr;       /* 1-st empty entry (index) host_w*/
 121         int read_ptr;         /* last used entry (index) host_r*/
 122         dma_addr_t dma_addr;   /* physical addr for BD's */
 123         int n_window;          /* safe queue window */
 124         u32 id;
 125         int low_mark;          /* low watermark, resume queue if free
 126                                 * space more than this */
 127         int high_mark;         /* high watermark, stop queue if free
 128                                 * space less than this */
 129 } __attribute__ ((packed));
 130
 131 int iwl3945_queue_space(const struct iwl3945_queue *q);
 132 int iwl3945_x2_queue_used(const struct iwl3945_queue *q, int i);
 133
 134 #define MAX_NUM_OF_TBS          (20)
 135
 136 /* One for each TFD */
 137 struct iwl3945_tx_info {
 138         struct sk_buff *skb[MAX_NUM_OF_TBS];
 139 };
 140
 141 /**
 142  * struct iwl3945_tx_queue - Tx Queue for DMA
 143  * @q: generic Rx/Tx queue descriptor
 144  * @bd: base of circular buffer of TFDs
 145  * @cmd: array of command/Tx buffers
 146  * @dma_addr_cmd: physical address of cmd/tx buffer array
 147  * @txb: array of per-TFD driver data
 148  * @need_update: indicates need to update read/write index
 149  *
 150  * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
 151  * descriptors) and required locking structures.
 152  */
 153 struct iwl3945_tx_queue {
 154         struct iwl3945_queue q;
 155         struct iwl3945_tfd_frame *bd;
 156         struct iwl3945_cmd *cmd;
 157         dma_addr_t dma_addr_cmd;
 158         struct iwl3945_tx_info *txb;
 159         int need_update;
 160         int active;
 161 };
 162
 163 #define IWL_NUM_SCAN_RATES         (2)
 164
 165 struct iwl3945_channel_tgd_info {
 166         u8 type;
 167         s8 max_power;
 168 };
 169
 170 struct iwl3945_channel_tgh_info {
 171         s64 last_radar_time;
 172 };
 173
 174 /* current Tx power values to use, one for each rate for each channel.
 175  * requested power is limited by:
 176  * -- regulatory EEPROM limits for this channel
 177  * -- hardware capabilities (clip-powers)
 178  * -- spectrum management
 179  * -- user preference (e.g. iwconfig)
 180  * when requested power is set, base power index must also be set. */
 181 struct iwl3945_channel_power_info {
 182         struct iwl3945_tx_power tpc;    /* actual radio and DSP gain settings */
 183         s8 power_table_index;   /* actual (compenst'd) index into gain table */
 184         s8 base_power_index;    /* gain index for power at factory temp. */
 185         s8 requested_power;     /* power (dBm) requested for this chnl/rate */
 186 };
 187
 188 /* current scan Tx power values to use, one for each scan rate for each
 189  * channel. */
 190 struct iwl3945_scan_power_info {
 191         struct iwl3945_tx_power tpc;    /* actual radio and DSP gain settings */
 192         s8 power_table_index;   /* actual (compenst'd) index into gain table */
 193         s8 requested_power;     /* scan pwr (dBm) requested for chnl/rate */
 194 };
 195
 196 /*
 197  * One for each channel, holds all channel setup data
 198  * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
 199  *     with one another!
 200  */
 201 #define IWL4965_MAX_RATE (33)
 202
 203 struct iwl3945_channel_info {
 204         struct iwl3945_channel_tgd_info tgd;
 205         struct iwl3945_channel_tgh_info tgh;
 206         struct iwl_eeprom_channel eeprom;       /* EEPROM regulatory limit */
 207         struct iwl_eeprom_channel fat_eeprom;   /* EEPROM regulatory limit for
 208                                                  * FAT channel */
 209
 210         u8 channel;       /* channel number */
 211         u8 flags;         /* flags copied from EEPROM */
 212         s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
 213         s8 curr_txpow;    /* (dBm) regulatory/spectrum/user (not h/w) */
 214         s8 min_power;     /* always 0 */
 215         s8 scan_power;    /* (dBm) regul. eeprom, direct scans, any rate */
 216
 217         u8 group_index;   /* 0-4, maps channel to group1/2/3/4/5 */
 218         u8 band_index;    /* 0-4, maps channel to band1/2/3/4/5 */
 219         enum ieee80211_band band;
 220
 221         /* Radio/DSP gain settings for each "normal" data Tx rate.
 222          * These include, in addition to RF and DSP gain, a few fields for
 223          *   remembering/modifying gain settings (indexes). */
 224         struct iwl3945_channel_power_info power_info[IWL4965_MAX_RATE];
 225
 226         /* Radio/DSP gain settings for each scan rate, for directed scans. */
 227         struct iwl3945_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES];
 228 };
 229
 230 struct iwl3945_clip_group {
 231         /* maximum power level to prevent clipping for each rate, derived by
 232          *   us from this band's saturation power in EEPROM */
 233         const s8 clip_powers[IWL_MAX_RATES];
 234 };
 235
 236 #include "iwl-3945-rs.h"
 237
 238 #define IWL_TX_FIFO_AC0 0
 239 #define IWL_TX_FIFO_AC1 1
 240 #define IWL_TX_FIFO_AC2 2
 241 #define IWL_TX_FIFO_AC3 3
 242 #define IWL_TX_FIFO_HCCA_1      5
 243 #define IWL_TX_FIFO_HCCA_2      6
 244 #define IWL_TX_FIFO_NONE        7
 245
 246 /* Minimum number of queues. MAX_NUM is defined in hw specific files */
 247 #define IWL_MIN_NUM_QUEUES      4
 248
 249 /* Power management (not Tx power) structures */
 250
 251 struct iwl3945_power_vec_entry {
 252         struct iwl_powertable_cmd cmd;
 253         u8 no_dtim;
 254 };
 255 #define IWL_POWER_RANGE_0  (0)
 256 #define IWL_POWER_RANGE_1  (1)
 257
 258 #define IWL_POWER_MODE_CAM      0x00    /* Continuously Aware Mode, always on */
 259 #define IWL_POWER_INDEX_3       0x03
 260 #define IWL_POWER_INDEX_5       0x05
 261 #define IWL_POWER_AC            0x06
 262 #define IWL_POWER_BATTERY       0x07
 263 #define IWL_POWER_LIMIT         0x07
 264 #define IWL_POWER_MASK          0x0F
 265 #define IWL_POWER_ENABLED       0x10
 266 #define IWL_POWER_LEVEL(x)      ((x) & IWL_POWER_MASK)
 267
 268 struct iwl3945_power_mgr {
 269         spinlock_t lock;
 270         struct iwl3945_power_vec_entry pwr_range_0[IWL_POWER_AC];
 271         struct iwl3945_power_vec_entry pwr_range_1[IWL_POWER_AC];
 272         u8 active_index;
 273         u32 dtim_val;
 274 };
 275
 276 #define IEEE80211_DATA_LEN              2304
 277 #define IEEE80211_4ADDR_LEN             30
 278 #define IEEE80211_HLEN                  (IEEE80211_4ADDR_LEN)
 279 #define IEEE80211_FRAME_LEN             (IEEE80211_DATA_LEN + IEEE80211_HLEN)
 280
 281 struct iwl3945_frame {
 282         union {
 283                 struct ieee80211_hdr frame;
 284                 struct iwl3945_tx_beacon_cmd beacon;
 285                 u8 raw[IEEE80211_FRAME_LEN];
 286                 u8 cmd[360];
 287         } u;
 288         struct list_head list;
 289 };
 290
 291 #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
 292 #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
 293 #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
 294
 295 enum {
 296         /* CMD_SIZE_NORMAL = 0, */
 297         CMD_SIZE_HUGE = (1 << 0),
 298         /* CMD_SYNC = 0, */
 299         CMD_ASYNC = (1 << 1),
 300         /* CMD_NO_SKB = 0, */
 301         CMD_WANT_SKB = (1 << 2),
 302 };
 303
 304 struct iwl3945_cmd;
 305 struct iwl3945_priv;
 306
 307 struct iwl3945_cmd_meta {
 308         struct iwl3945_cmd_meta *source;
 309         union {
 310                 struct sk_buff *skb;
 311                 int (*callback)(struct iwl3945_priv *priv,
 312                                 struct iwl3945_cmd *cmd, struct sk_buff *skb);
 313         } __attribute__ ((packed)) u;
 314
 315         /* The CMD_SIZE_HUGE flag bit indicates that the command
 316          * structure is stored at the end of the shared queue memory. */
 317         u32 flags;
 318
 319 } __attribute__ ((packed));
 320
 321 /**
 322  * struct iwl3945_cmd
 323  *
 324  * For allocation of the command and tx queues, this establishes the overall
 325  * size of the largest command we send to uCode, except for a scan command
 326  * (which is relatively huge; space is allocated separately).
 327  */
 328 struct iwl3945_cmd {
 329         struct iwl3945_cmd_meta meta;
 330         struct iwl_cmd_header hdr;
 331         union {
 332                 struct iwl3945_addsta_cmd addsta;
 333                 struct iwl_led_cmd led;
 334                 u32 flags;
 335                 u8 val8;
 336                 u16 val16;
 337                 u32 val32;
 338                 struct iwl_bt_cmd bt;
 339                 struct iwl_rxon_time_cmd rxon_time;
 340                 struct iwl_powertable_cmd powertable;
 341                 struct iwl_qosparam_cmd qosparam;
 342                 struct iwl3945_tx_cmd tx;
 343                 struct iwl3945_tx_beacon_cmd tx_beacon;
 344                 struct iwl3945_rxon_assoc_cmd rxon_assoc;
 345                 u8 *indirect;
 346                 u8 payload[360];
 347         } __attribute__ ((packed)) cmd;
 348 } __attribute__ ((packed));
 349
 350 struct iwl3945_host_cmd {
 351         u8 id;
 352         u16 len;
 353         struct iwl3945_cmd_meta meta;
 354         const void *data;
 355 };
 356
 357 #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl3945_cmd) - \
 358                               sizeof(struct iwl3945_cmd_meta))
 359
 360 /*
 361  * RX related structures and functions
 362  */
 363 #define RX_FREE_BUFFERS 64
 364 #define RX_LOW_WATERMARK 8
 365
 366 #define SUP_RATE_11A_MAX_NUM_CHANNELS  8
 367 #define SUP_RATE_11B_MAX_NUM_CHANNELS  4
 368 #define SUP_RATE_11G_MAX_NUM_CHANNELS  12
 369
 370 /**
 371  * struct iwl3945_rx_queue - Rx queue
 372  * @processed: Internal index to last handled Rx packet
 373  * @read: Shared index to newest available Rx buffer
 374  * @write: Shared index to oldest written Rx packet
 375  * @free_count: Number of pre-allocated buffers in rx_free
 376  * @rx_free: list of free SKBs for use
 377  * @rx_used: List of Rx buffers with no SKB
 378  * @need_update: flag to indicate we need to update read/write index
 379  *
 380  * NOTE:  rx_free and rx_used are used as a FIFO for iwl3945_rx_mem_buffers
 381  */
 382 struct iwl3945_rx_queue {
 383         __le32 *bd;
 384         dma_addr_t dma_addr;
 385         struct iwl3945_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
 386         struct iwl3945_rx_mem_buffer *queue[RX_QUEUE_SIZE];
 387         u32 processed;
 388         u32 read;
 389         u32 write;
 390         u32 free_count;
 391         struct list_head rx_free;
 392         struct list_head rx_used;
 393         int need_update;
 394         spinlock_t lock;
 395 };
 396
 397 #define IWL_SUPPORTED_RATES_IE_LEN         8
 398
 399 #define SCAN_INTERVAL 100
 400
 401 #define STATUS_HCMD_ACTIVE      0       /* host command in progress */
 402 #define STATUS_HCMD_SYNC_ACTIVE 1       /* sync host command in progress */
 403 #define STATUS_INT_ENABLED      2
 404 #define STATUS_RF_KILL_HW       3
 405 #define STATUS_RF_KILL_SW       4
 406 #define STATUS_INIT             5
 407 #define STATUS_ALIVE            6
 408 #define STATUS_READY            7
 409 #define STATUS_TEMPERATURE      8
 410 #define STATUS_GEO_CONFIGURED   9
 411 #define STATUS_EXIT_PENDING     10
 412 #define STATUS_IN_SUSPEND       11
 413 #define STATUS_STATISTICS       12
 414 #define STATUS_SCANNING         13
 415 #define STATUS_SCAN_ABORTING    14
 416 #define STATUS_SCAN_HW          15
 417 #define STATUS_POWER_PMI        16
 418 #define STATUS_FW_ERROR         17
 419 #define STATUS_CONF_PENDING     18
 420
 421 #define MAX_TID_COUNT        9
 422
 423 #define IWL_INVALID_RATE     0xFF
 424 #define IWL_INVALID_VALUE    -1
 425
 426 struct iwl3945_tid_data {
 427         u16 seq_number;
 428 };
 429
 430 struct iwl3945_hw_key {
 431         enum ieee80211_key_alg alg;
 432         int keylen;
 433         u8 key[32];
 434 };
 435
 436 union iwl3945_ht_rate_supp {
 437         u16 rates;
 438         struct {
 439                 u8 siso_rate;
 440                 u8 mimo_rate;
 441         };
 442 };
 443
 444 union iwl3945_qos_capabity {
 445         struct {
 446                 u8 edca_count:4;        /* bit 0-3 */
 447                 u8 q_ack:1;             /* bit 4 */
 448                 u8 queue_request:1;     /* bit 5 */
 449                 u8 txop_request:1;      /* bit 6 */
 450                 u8 reserved:1;          /* bit 7 */
 451         } q_AP;
 452         struct {
 453                 u8 acvo_APSD:1;         /* bit 0 */
 454                 u8 acvi_APSD:1;         /* bit 1 */
 455                 u8 ac_bk_APSD:1;        /* bit 2 */
 456                 u8 ac_be_APSD:1;        /* bit 3 */
 457                 u8 q_ack:1;             /* bit 4 */
 458                 u8 max_len:2;           /* bit 5-6 */
 459                 u8 more_data_ack:1;     /* bit 7 */
 460         } q_STA;
 461         u8 val;
 462 };
 463
 464 /* QoS structures */
 465 struct iwl3945_qos_info {
 466         int qos_active;
 467         union iwl3945_qos_capabity qos_cap;
 468         struct iwl_qosparam_cmd def_qos_parm;
 469 };
 470
 471 #define STA_PS_STATUS_WAKE             0
 472 #define STA_PS_STATUS_SLEEP            1
 473
 474 struct iwl3945_station_entry {
 475         struct iwl3945_addsta_cmd sta;
 476         struct iwl3945_tid_data tid[MAX_TID_COUNT];
 477         u8 used;
 478         u8 ps_status;
 479         struct iwl3945_hw_key keyinfo;
 480 };
 481
 482 /* one for each uCode image (inst/data, boot/init/runtime) */
 483 struct fw_desc {
 484         void *v_addr;           /* access by driver */
 485         dma_addr_t p_addr;      /* access by card's busmaster DMA */
 486         u32 len;                /* bytes */
 487 };
 488
 489 /* uCode file layout */
 490 struct iwl3945_ucode {
 491         __le32 ver;             /* major/minor/API/serial */
 492         __le32 inst_size;       /* bytes of runtime instructions */
 493         __le32 data_size;       /* bytes of runtime data */
 494         __le32 init_size;       /* bytes of initialization instructions */
 495         __le32 init_data_size;  /* bytes of initialization data */
 496         __le32 boot_size;       /* bytes of bootstrap instructions */
 497         u8 data[0];             /* data in same order as "size" elements */
 498 };
 499
 500 struct iwl3945_ibss_seq {
 501         u8 mac[ETH_ALEN];
 502         u16 seq_num;
 503         u16 frag_num;
 504         unsigned long packet_time;
 505         struct list_head list;
 506 };
 507
 508 /**
 509  * struct iwl3945_driver_hw_info
 510  * @max_txq_num: Max # Tx queues supported
 511  * @tx_cmd_len: Size of Tx command (but not including frame itself)
 512  * @tx_ant_num: Number of TX antennas
 513  * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
 514  * @rx_buf_size:
 515  * @max_pkt_size:
 516  * @max_rxq_log: Log-base-2 of max_rxq_size
 517  * @max_stations:
 518  * @bcast_sta_id:
 519  * @shared_virt: Pointer to driver/uCode shared Tx Byte Counts and Rx status
 520  * @shared_phys: Physical Pointer to Tx Byte Counts and Rx status
 521  */
 522 struct iwl3945_driver_hw_info {
 523         u16 max_txq_num;
 524         u16 tx_cmd_len;
 525         u16 tx_ant_num;
 526         u16 max_rxq_size;
 527         u32 rx_buf_size;
 528         u32 max_pkt_size;
 529         u16 max_rxq_log;
 530         u8  max_stations;
 531         u8  bcast_sta_id;
 532         void *shared_virt;
 533         dma_addr_t shared_phys;
 534 };
 535
 536 #define IWL_RX_HDR(x) ((struct iwl3945_rx_frame_hdr *)(\
 537                        x->u.rx_frame.stats.payload + \
 538                        x->u.rx_frame.stats.phy_count))
 539 #define IWL_RX_END(x) ((struct iwl3945_rx_frame_end *)(\
 540                        IWL_RX_HDR(x)->payload + \
 541                        le16_to_cpu(IWL_RX_HDR(x)->len)))
 542 #define IWL_RX_STATS(x) (&x->u.rx_frame.stats)
 543 #define IWL_RX_DATA(x) (IWL_RX_HDR(x)->payload)
 544
 545
 546 /******************************************************************************
 547  *
 548  * Functions implemented in iwl-base.c which are forward declared here
 549  * for use by iwl-*.c
 550  *
 551  *****************************************************************************/
 552 struct iwl3945_addsta_cmd;
 553 extern int iwl3945_send_add_station(struct iwl3945_priv *priv,
 554                                 struct iwl3945_addsta_cmd *sta, u8 flags);
 555 extern u8 iwl3945_add_station(struct iwl3945_priv *priv, const u8 *bssid,
 556                           int is_ap, u8 flags);
 557 extern int iwl3945_power_init_handle(struct iwl3945_priv *priv);
 558 extern int iwl3945_eeprom_init(struct iwl3945_priv *priv);
 559 extern int iwl3945_rx_queue_alloc(struct iwl3945_priv *priv);
 560 extern void iwl3945_rx_queue_reset(struct iwl3945_priv *priv,
 561                                struct iwl3945_rx_queue *rxq);
 562 extern int iwl3945_calc_db_from_ratio(int sig_ratio);
 563 extern int iwl3945_calc_sig_qual(int rssi_dbm, int noise_dbm);
 564 extern int iwl3945_tx_queue_init(struct iwl3945_priv *priv,
 565                              struct iwl3945_tx_queue *txq, int count, u32 id);
 566 extern void iwl3945_rx_replenish(void *data);
 567 extern void iwl3945_tx_queue_free(struct iwl3945_priv *priv, struct iwl3945_tx_queue *txq);
 568 extern int iwl3945_send_cmd_pdu(struct iwl3945_priv *priv, u8 id, u16 len,
 569                             const void *data);
 570 extern int __must_check iwl3945_send_cmd(struct iwl3945_priv *priv,
 571                 struct iwl3945_host_cmd *cmd);
 572 extern unsigned int iwl3945_fill_beacon_frame(struct iwl3945_priv *priv,
 573                                         struct ieee80211_hdr *hdr,int left);
 574 extern int iwl3945_rx_queue_update_write_ptr(struct iwl3945_priv *priv,
 575                                          struct iwl3945_rx_queue *q);
 576 extern int iwl3945_send_statistics_request(struct iwl3945_priv *priv);
 577 extern void iwl3945_set_decrypted_flag(struct iwl3945_priv *priv, struct sk_buff *skb,
 578                                    u32 decrypt_res,
 579                                    struct ieee80211_rx_status *stats);
 580 extern const u8 iwl3945_broadcast_addr[ETH_ALEN];
 581
 582 /*
 583  * Currently used by iwl-3945-rs... look at restructuring so that it doesn't
 584  * call this... todo... fix that.
 585 */
 586 extern u8 iwl3945_sync_station(struct iwl3945_priv *priv, int sta_id,
 587                            u16 tx_rate, u8 flags);
 588
 589 /******************************************************************************
 590  *
 591  * Functions implemented in iwl-[34]*.c which are forward declared here
 592  * for use by iwl-base.c
 593  *
 594  * NOTE:  The implementation of these functions are hardware specific
 595  * which is why they are in the hardware specific files (vs. iwl-base.c)
 596  *
 597  * Naming convention --
 598  * iwl3945_         <-- Its part of iwlwifi (should be changed to iwl3945_)
 599  * iwl3945_hw_      <-- Hardware specific (implemented in iwl-XXXX.c by all HW)
 600  * iwlXXXX_     <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
 601  * iwl3945_bg_      <-- Called from work queue context
 602  * iwl3945_mac_     <-- mac80211 callback
 603  *
 604  ****************************************************************************/
 605 extern void iwl3945_hw_rx_handler_setup(struct iwl3945_priv *priv);
 606 extern void iwl3945_hw_setup_deferred_work(struct iwl3945_priv *priv);
 607 extern void iwl3945_hw_cancel_deferred_work(struct iwl3945_priv *priv);
 608 extern int iwl3945_hw_rxq_stop(struct iwl3945_priv *priv);
 609 extern int iwl3945_hw_set_hw_setting(struct iwl3945_priv *priv);
 610 extern int iwl3945_hw_nic_init(struct iwl3945_priv *priv);
 611 extern int iwl3945_hw_nic_stop_master(struct iwl3945_priv *priv);
 612 extern void iwl3945_hw_txq_ctx_free(struct iwl3945_priv *priv);
 613 extern void iwl3945_hw_txq_ctx_stop(struct iwl3945_priv *priv);
 614 extern int iwl3945_hw_nic_reset(struct iwl3945_priv *priv);
 615 extern int iwl3945_hw_txq_attach_buf_to_tfd(struct iwl3945_priv *priv, void *tfd,
 616                                         dma_addr_t addr, u16 len);
 617 extern int iwl3945_hw_txq_free_tfd(struct iwl3945_priv *priv, struct iwl3945_tx_queue *txq);
 618 extern int iwl3945_hw_get_temperature(struct iwl3945_priv *priv);
 619 extern int iwl3945_hw_tx_queue_init(struct iwl3945_priv *priv,
 620                                 struct iwl3945_tx_queue *txq);
 621 extern unsigned int iwl3945_hw_get_beacon_cmd(struct iwl3945_priv *priv,
 622                                  struct iwl3945_frame *frame, u8 rate);
 623 extern int iwl3945_hw_get_rx_read(struct iwl3945_priv *priv);
 624 extern void iwl3945_hw_build_tx_cmd_rate(struct iwl3945_priv *priv,
 625                                      struct iwl3945_cmd *cmd,
 626                                      struct ieee80211_tx_info *info,
 627                                      struct ieee80211_hdr *hdr,
 628                                      int sta_id, int tx_id);
 629 extern int iwl3945_hw_reg_send_txpower(struct iwl3945_priv *priv);
 630 extern int iwl3945_hw_reg_set_txpower(struct iwl3945_priv *priv, s8 power);
 631 extern void iwl3945_hw_rx_statistics(struct iwl3945_priv *priv,
 632                                  struct iwl3945_rx_mem_buffer *rxb);
 633 extern void iwl3945_disable_events(struct iwl3945_priv *priv);
 634 extern int iwl4965_get_temperature(const struct iwl3945_priv *priv);
 635
 636 /**
 637  * iwl3945_hw_find_station - Find station id for a given BSSID
 638  * @bssid: MAC address of station ID to find
 639  *
 640  * NOTE:  This should not be hardware specific but the code has
 641  * not yet been merged into a single common layer for managing the
 642  * station tables.
 643  */
 644 extern u8 iwl3945_hw_find_station(struct iwl3945_priv *priv, const u8 *bssid);
 645
 646 extern int iwl3945_hw_channel_switch(struct iwl3945_priv *priv, u16 channel);
 647
 648 /*
 649  * Forward declare iwl-3945.c functions for iwl-base.c
 650  */
 651 extern __le32 iwl3945_get_antenna_flags(const struct iwl3945_priv *priv);
 652 extern int iwl3945_init_hw_rate_table(struct iwl3945_priv *priv);
 653 extern void iwl3945_reg_txpower_periodic(struct iwl3945_priv *priv);
 654 extern int iwl3945_txpower_set_from_eeprom(struct iwl3945_priv *priv);
 655 extern u8 iwl3945_sync_sta(struct iwl3945_priv *priv, int sta_id,
 656                  u16 tx_rate, u8 flags);
 657
 658
 659 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
 660
 661 enum {
 662         MEASUREMENT_READY = (1 << 0),
 663         MEASUREMENT_ACTIVE = (1 << 1),
 664 };
 665
 666 #endif
 667
 668 #ifdef CONFIG_IWL3945_RFKILL
 669 struct iwl3945_priv;
 670
 671 void iwl3945_rfkill_set_hw_state(struct iwl3945_priv *priv);
 672 void iwl3945_rfkill_unregister(struct iwl3945_priv *priv);
 673 int iwl3945_rfkill_init(struct iwl3945_priv *priv);
 674 #else
 675 static inline void iwl3945_rfkill_set_hw_state(struct iwl3945_priv *priv) {}
 676 static inline void iwl3945_rfkill_unregister(struct iwl3945_priv *priv) {}
 677 static inline int iwl3945_rfkill_init(struct iwl3945_priv *priv) { return 0; }
 678 #endif
 679
 680
 681 struct iwl3945_priv {
 682
 683         /* ieee device used by generic ieee processing code */
 684         struct ieee80211_hw *hw;
 685         struct ieee80211_channel *ieee_channels;
 686         struct ieee80211_rate *ieee_rates;
 687         struct iwl_3945_cfg *cfg; /* device configuration */
 688
 689         /* temporary frame storage list */
 690         struct list_head free_frames;
 691         int frames_count;
 692
 693         enum ieee80211_band band;
 694         int alloc_rxb_skb;
 695
 696         void (*rx_handlers[REPLY_MAX])(struct iwl3945_priv *priv,
 697                                        struct iwl3945_rx_mem_buffer *rxb);
 698
 699         struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
 700
 701 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
 702         /* spectrum measurement report caching */
 703         struct iwl_spectrum_notification measure_report;
 704         u8 measurement_status;
 705 #endif
 706         /* ucode beacon time */
 707         u32 ucode_beacon_time;
 708
 709         /* we allocate array of iwl3945_channel_info for NIC's valid channels.
 710          *    Access via channel # using indirect index array */
 711         struct iwl3945_channel_info *channel_info;      /* channel info array */
 712         u8 channel_count;       /* # of channels */
 713
 714         /* each calibration channel group in the EEPROM has a derived
 715          * clip setting for each rate. */
 716         const struct iwl3945_clip_group clip_groups[5];
 717
 718         /* thermal calibration */
 719         s32 temperature;        /* degrees Kelvin */
 720         s32 last_temperature;
 721
 722         /* Scan related variables */
 723         unsigned long last_scan_jiffies;
 724         unsigned long next_scan_jiffies;
 725         unsigned long scan_start;
 726         unsigned long scan_pass_start;
 727         unsigned long scan_start_tsf;
 728         int scan_bands;
 729         int one_direct_scan;
 730         u8 direct_ssid_len;
 731         u8 direct_ssid[IW_ESSID_MAX_SIZE];
 732         struct iwl3945_scan_cmd *scan;
 733
 734         /* spinlock */
 735         spinlock_t lock;        /* protect general shared data */
 736         spinlock_t hcmd_lock;   /* protect hcmd */
 737         struct mutex mutex;
 738
 739         /* basic pci-network driver stuff */
 740         struct pci_dev *pci_dev;
 741
 742         /* pci hardware address support */
 743         void __iomem *hw_base;
 744
 745         /* uCode images, save to reload in case of failure */
 746         u32 ucode_ver;                  /* ucode version, copy of
 747                                            iwl3945_ucode.ver */
 748         struct fw_desc ucode_code;      /* runtime inst */
 749         struct fw_desc ucode_data;      /* runtime data original */
 750         struct fw_desc ucode_data_backup;       /* runtime data save/restore */
 751         struct fw_desc ucode_init;      /* initialization inst */
 752         struct fw_desc ucode_init_data; /* initialization data */
 753         struct fw_desc ucode_boot;      /* bootstrap inst */
 754
 755
 756         struct iwl_rxon_time_cmd rxon_timing;
 757
 758         /* We declare this const so it can only be
 759          * changed via explicit cast within the
 760          * routines that actually update the physical
 761          * hardware */
 762         const struct iwl3945_rxon_cmd active_rxon;
 763         struct iwl3945_rxon_cmd staging_rxon;
 764
 765         int error_recovering;
 766         struct iwl3945_rxon_cmd recovery_rxon;
 767
 768         /* 1st responses from initialize and runtime uCode images.
 769          * 4965's initialize alive response contains some calibration data. */
 770         /* FIXME: 4965 uses bigger structure for init */
 771         struct iwl_alive_resp card_alive_init;
 772         struct iwl_alive_resp card_alive;
 773
 774 #ifdef CONFIG_IWL3945_RFKILL
 775         struct rfkill *rfkill;
 776 #endif
 777
 778 #ifdef CONFIG_IWL3945_LEDS
 779         struct iwl3945_led led[IWL_LED_TRG_MAX];
 780         unsigned long last_blink_time;
 781         u8 last_blink_rate;
 782         u8 allow_blinking;
 783         unsigned int rxtxpackets;
 784         u64 led_tpt;
 785 #endif
 786
 787
 788         u16 active_rate;
 789         u16 active_rate_basic;
 790
 791         u32 sta_supp_rates;
 792
 793         u8 call_post_assoc_from_beacon;
 794         /* Rate scaling data */
 795         s8 data_retry_limit;
 796         u8 retry_rate;
 797
 798         wait_queue_head_t wait_command_queue;
 799
 800         int activity_timer_active;
 801
 802         /* Rx and Tx DMA processing queues */
 803         struct iwl3945_rx_queue rxq;
 804         struct iwl3945_tx_queue txq[IWL39_MAX_NUM_QUEUES];
 805
 806         unsigned long status;
 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         u16 rates_mask;
 818
 819         u32 power_mode;
 820         u32 antenna;
 821         u8 bssid[ETH_ALEN];
 822         u16 rts_threshold;
 823         u8 mac_addr[ETH_ALEN];
 824
 825         /*station table variables */
 826         spinlock_t sta_lock;
 827         int num_stations;
 828         struct iwl3945_station_entry stations[IWL_STATION_COUNT];
 829
 830         /* Indication if ieee80211_ops->open has been called */
 831         u8 is_open;
 832
 833         u8 mac80211_registered;
 834
 835         /* Rx'd packet timing information */
 836         u32 last_beacon_time;
 837         u64 last_tsf;
 838
 839         /* eeprom */
 840         struct iwl3945_eeprom eeprom;
 841
 842         enum nl80211_iftype iw_mode;
 843
 844         struct sk_buff *ibss_beacon;
 845
 846         /* Last Rx'd beacon timestamp */
 847         u64 timestamp;
 848         u16 beacon_int;
 849         struct iwl3945_driver_hw_info hw_setting;
 850         struct ieee80211_vif *vif;
 851
 852         /* Current association information needed to configure the
 853          * hardware */
 854         u16 assoc_id;
 855         u16 assoc_capability;
 856         u8 ps_mode;
 857
 858         struct iwl3945_qos_info qos_data;
 859
 860         struct workqueue_struct *workqueue;
 861
 862         struct work_struct up;
 863         struct work_struct restart;
 864         struct work_struct calibrated_work;
 865         struct work_struct scan_completed;
 866         struct work_struct rx_replenish;
 867         struct work_struct rf_kill;
 868         struct work_struct abort_scan;
 869         struct work_struct update_link_led;
 870         struct work_struct auth_work;
 871         struct work_struct report_work;
 872         struct work_struct request_scan;
 873         struct work_struct beacon_update;
 874
 875         struct tasklet_struct irq_tasklet;
 876
 877         struct delayed_work init_alive_start;
 878         struct delayed_work alive_start;
 879         struct delayed_work activity_timer;
 880         struct delayed_work thermal_periodic;
 881         struct delayed_work gather_stats;
 882         struct delayed_work scan_check;
 883
 884 #define IWL_DEFAULT_TX_POWER 0x0F
 885         s8 user_txpower_limit;
 886         s8 max_channel_txpower_limit;
 887
 888
 889 #ifdef CONFIG_IWL3945_DEBUG
 890         /* debugging info */
 891         u32 debug_level;
 892         u32 framecnt_to_us;
 893         atomic_t restrict_refcnt;
 894 #endif
 895 };                              /*iwl3945_priv */
 896
 897 static inline int iwl3945_is_associated(struct iwl3945_priv *priv)
 898 {
 899         return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
 900 }
 901
 902 static inline int is_channel_valid(const struct iwl3945_channel_info *ch_info)
 903 {
 904         if (ch_info == NULL)
 905                 return 0;
 906         return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
 907 }
 908
 909 static inline int is_channel_radar(const struct iwl3945_channel_info *ch_info)
 910 {
 911         return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
 912 }
 913
 914 static inline u8 is_channel_a_band(const struct iwl3945_channel_info *ch_info)
 915 {
 916         return ch_info->band == IEEE80211_BAND_5GHZ;
 917 }
 918
 919 static inline u8 is_channel_bg_band(const struct iwl3945_channel_info *ch_info)
 920 {
 921         return ch_info->band == IEEE80211_BAND_2GHZ;
 922 }
 923
 924 static inline int is_channel_passive(const struct iwl3945_channel_info *ch)
 925 {
 926         return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
 927 }
 928
 929 static inline int is_channel_ibss(const struct iwl3945_channel_info *ch)
 930 {
 931         return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
 932 }
 933
 934 extern const struct iwl3945_channel_info *iwl3945_get_channel_info(
 935         const struct iwl3945_priv *priv, enum ieee80211_band band, u16 channel);
 936
 937 extern int iwl3945_rs_next_rate(struct iwl3945_priv *priv, int rate);
 938
 939 /* Requires full declaration of iwl3945_priv before including */
 940 #include "iwl-3945-io.h"
 941
 942 #endif