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 #define DRV_NAME        "iwl3945"
  47 #include "iwl-csr.h"
  48 #include "iwl-prph.h"
  49 #include "iwl-3945-hw.h"
  50 #include "iwl-3945-debug.h"
  51 #include "iwl-3945-led.h"
  52
  53 /* Highest firmware API version supported */
  54 #define IWL3945_UCODE_API_MAX 2
  55
  56 /* Lowest firmware API version supported */
  57 #define IWL3945_UCODE_API_MIN 1
  58
  59 #define IWL3945_FW_PRE  "iwlwifi-3945-"
  60 #define _IWL3945_MODULE_FIRMWARE(api) IWL3945_FW_PRE #api ".ucode"
  61 #define IWL3945_MODULE_FIRMWARE(api) _IWL3945_MODULE_FIRMWARE(api)
  62
  63 /* Default noise level to report when noise measurement is not available.
  64  *   This may be because we're:
  65  *   1)  Not associated (4965, no beacon statistics being sent to driver)
  66  *   2)  Scanning (noise measurement does not apply to associated channel)
  67  *   3)  Receiving CCK (3945 delivers noise info only for OFDM frames)
  68  * Use default noise value of -127 ... this is below the range of measurable
  69  *   Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
  70  *   Also, -127 works better than 0 when averaging frames with/without
  71  *   noise info (e.g. averaging might be done in app); measured dBm values are
  72  *   always negative ... using a negative value as the default keeps all
  73  *   averages within an s8's (used in some apps) range of negative values. */
  74 #define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
  75
  76 /* Module parameters accessible from iwl-*.c */
  77 extern int iwl3945_param_hwcrypto;
  78 extern int iwl3945_param_queues_num;
  79
  80 struct iwl3945_sta_priv {
  81         struct iwl3945_rs_sta *rs_sta;
  82 };
  83
  84 enum iwl3945_antenna {
  85         IWL_ANTENNA_DIVERSITY,
  86         IWL_ANTENNA_MAIN,
  87         IWL_ANTENNA_AUX
  88 };
  89
  90 /*
  91  * RTS threshold here is total size [2347] minus 4 FCS bytes
  92  * Per spec:
  93  *   a value of 0 means RTS on all data/management packets
  94  *   a value > max MSDU size means no RTS
  95  * else RTS for data/management frames where MPDU is larger
  96  *   than RTS value.
  97  */
  98 #define IWL_RX_BUF_SIZE           3000U
  99 #define DEFAULT_RTS_THRESHOLD     2347U
 100 #define MIN_RTS_THRESHOLD         0U
 101 #define MAX_RTS_THRESHOLD         2347U
 102 #define MAX_MSDU_SIZE             2304U
 103 #define MAX_MPDU_SIZE             2346U
 104 #define DEFAULT_BEACON_INTERVAL   100U
 105 #define DEFAULT_SHORT_RETRY_LIMIT 7U
 106 #define DEFAULT_LONG_RETRY_LIMIT  4U
 107
 108 struct iwl3945_rx_mem_buffer {
 109         dma_addr_t dma_addr;
 110         struct sk_buff *skb;
 111         struct list_head list;
 112 };
 113
 114 /*
 115  * Generic queue structure
 116  *
 117  * Contains common data for Rx and Tx queues
 118  */
 119 struct iwl3945_queue {
 120         int n_bd;              /* number of BDs in this queue */
 121         int write_ptr;       /* 1-st empty entry (index) host_w*/
 122         int read_ptr;         /* last used entry (index) host_r*/
 123         dma_addr_t dma_addr;   /* physical addr for BD's */
 124         int n_window;          /* safe queue window */
 125         u32 id;
 126         int low_mark;          /* low watermark, resume queue if free
 127                                 * space more than this */
 128         int high_mark;         /* high watermark, stop queue if free
 129                                 * space less than this */
 130 } __attribute__ ((packed));
 131
 132 int iwl3945_queue_space(const struct iwl3945_queue *q);
 133 int iwl3945_x2_queue_used(const struct iwl3945_queue *q, int i);
 134
 135 #define MAX_NUM_OF_TBS          (20)
 136
 137 /* One for each TFD */
 138 struct iwl3945_tx_info {
 139         struct sk_buff *skb[MAX_NUM_OF_TBS];
 140 };
 141
 142 /**
 143  * struct iwl3945_tx_queue - Tx Queue for DMA
 144  * @q: generic Rx/Tx queue descriptor
 145  * @bd: base of circular buffer of TFDs
 146  * @cmd: array of command/Tx buffers
 147  * @dma_addr_cmd: physical address of cmd/tx buffer array
 148  * @txb: array of per-TFD driver data
 149  * @need_update: indicates need to update read/write index
 150  *
 151  * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
 152  * descriptors) and required locking structures.
 153  */
 154 struct iwl3945_tx_queue {
 155         struct iwl3945_queue q;
 156         struct iwl3945_tfd_frame *bd;
 157         struct iwl3945_cmd *cmd;
 158         dma_addr_t dma_addr_cmd;
 159         struct iwl3945_tx_info *txb;
 160         int need_update;
 161         int active;
 162 };
 163
 164 #define IWL_NUM_SCAN_RATES         (2)
 165
 166 struct iwl3945_channel_tgd_info {
 167         u8 type;
 168         s8 max_power;
 169 };
 170
 171 struct iwl3945_channel_tgh_info {
 172         s64 last_radar_time;
 173 };
 174
 175 /* current Tx power values to use, one for each rate for each channel.
 176  * requested power is limited by:
 177  * -- regulatory EEPROM limits for this channel
 178  * -- hardware capabilities (clip-powers)
 179  * -- spectrum management
 180  * -- user preference (e.g. iwconfig)
 181  * when requested power is set, base power index must also be set. */
 182 struct iwl3945_channel_power_info {
 183         struct iwl3945_tx_power tpc;    /* actual radio and DSP gain settings */
 184         s8 power_table_index;   /* actual (compenst'd) index into gain table */
 185         s8 base_power_index;    /* gain index for power at factory temp. */
 186         s8 requested_power;     /* power (dBm) requested for this chnl/rate */
 187 };
 188
 189 /* current scan Tx power values to use, one for each scan rate for each
 190  * channel. */
 191 struct iwl3945_scan_power_info {
 192         struct iwl3945_tx_power tpc;    /* actual radio and DSP gain settings */
 193         s8 power_table_index;   /* actual (compenst'd) index into gain table */
 194         s8 requested_power;     /* scan pwr (dBm) requested for chnl/rate */
 195 };
 196
 197 /*
 198  * One for each channel, holds all channel setup data
 199  * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
 200  *     with one another!
 201  */
 202 #define IWL4965_MAX_RATE (33)
 203
 204 struct iwl3945_channel_info {
 205         struct iwl3945_channel_tgd_info tgd;
 206         struct iwl3945_channel_tgh_info tgh;
 207         struct iwl3945_eeprom_channel eeprom;   /* EEPROM regulatory limit */
 208         struct iwl3945_eeprom_channel fat_eeprom;       /* EEPROM regulatory limit for
 209                                                  * FAT channel */
 210
 211         u8 channel;       /* channel number */
 212         u8 flags;         /* flags copied from EEPROM */
 213         s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
 214         s8 curr_txpow;    /* (dBm) regulatory/spectrum/user (not h/w) */
 215         s8 min_power;     /* always 0 */
 216         s8 scan_power;    /* (dBm) regul. eeprom, direct scans, any rate */
 217
 218         u8 group_index;   /* 0-4, maps channel to group1/2/3/4/5 */
 219         u8 band_index;    /* 0-4, maps channel to band1/2/3/4/5 */
 220         enum ieee80211_band band;
 221
 222         /* Radio/DSP gain settings for each "normal" data Tx rate.
 223          * These include, in addition to RF and DSP gain, a few fields for
 224          *   remembering/modifying gain settings (indexes). */
 225         struct iwl3945_channel_power_info power_info[IWL4965_MAX_RATE];
 226
 227         /* Radio/DSP gain settings for each scan rate, for directed scans. */
 228         struct iwl3945_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES];
 229 };
 230
 231 struct iwl3945_clip_group {
 232         /* maximum power level to prevent clipping for each rate, derived by
 233          *   us from this band's saturation power in EEPROM */
 234         const s8 clip_powers[IWL_MAX_RATES];
 235 };
 236
 237 #include "iwl-3945-rs.h"
 238
 239 #define IWL_TX_FIFO_AC0 0
 240 #define IWL_TX_FIFO_AC1 1
 241 #define IWL_TX_FIFO_AC2 2
 242 #define IWL_TX_FIFO_AC3 3
 243 #define IWL_TX_FIFO_HCCA_1      5
 244 #define IWL_TX_FIFO_HCCA_2      6
 245 #define IWL_TX_FIFO_NONE        7
 246
 247 /* Minimum number of queues. MAX_NUM is defined in hw specific files */
 248 #define IWL_MIN_NUM_QUEUES      4
 249
 250 /* Power management (not Tx power) structures */
 251
 252 struct iwl3945_power_vec_entry {
 253         struct iwl3945_powertable_cmd cmd;
 254         u8 no_dtim;
 255 };
 256 #define IWL_POWER_RANGE_0  (0)
 257 #define IWL_POWER_RANGE_1  (1)
 258
 259 #define IWL_POWER_MODE_CAM      0x00    /* Continuously Aware Mode, always on */
 260 #define IWL_POWER_INDEX_3       0x03
 261 #define IWL_POWER_INDEX_5       0x05
 262 #define IWL_POWER_AC            0x06
 263 #define IWL_POWER_BATTERY       0x07
 264 #define IWL_POWER_LIMIT         0x07
 265 #define IWL_POWER_MASK          0x0F
 266 #define IWL_POWER_ENABLED       0x10
 267 #define IWL_POWER_LEVEL(x)      ((x) & IWL_POWER_MASK)
 268
 269 struct iwl3945_power_mgr {
 270         spinlock_t lock;
 271         struct iwl3945_power_vec_entry pwr_range_0[IWL_POWER_AC];
 272         struct iwl3945_power_vec_entry pwr_range_1[IWL_POWER_AC];
 273         u8 active_index;
 274         u32 dtim_val;
 275 };
 276
 277 #define IEEE80211_DATA_LEN              2304
 278 #define IEEE80211_4ADDR_LEN             30
 279 #define IEEE80211_HLEN                  (IEEE80211_4ADDR_LEN)
 280 #define IEEE80211_FRAME_LEN             (IEEE80211_DATA_LEN + IEEE80211_HLEN)
 281
 282 struct iwl3945_frame {
 283         union {
 284                 struct ieee80211_hdr frame;
 285                 struct iwl3945_tx_beacon_cmd beacon;
 286                 u8 raw[IEEE80211_FRAME_LEN];
 287                 u8 cmd[360];
 288         } u;
 289         struct list_head list;
 290 };
 291
 292 #define SEQ_TO_QUEUE(x)  ((x >> 8) & 0xbf)
 293 #define QUEUE_TO_SEQ(x)  ((x & 0xbf) << 8)
 294 #define SEQ_TO_INDEX(x) ((u8)(x & 0xff))
 295 #define INDEX_TO_SEQ(x) ((u8)(x & 0xff))
 296 #define SEQ_HUGE_FRAME  (0x4000)
 297 #define SEQ_RX_FRAME    __constant_cpu_to_le16(0x8000)
 298 #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
 299 #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
 300 #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
 301
 302 enum {
 303         /* CMD_SIZE_NORMAL = 0, */
 304         CMD_SIZE_HUGE = (1 << 0),
 305         /* CMD_SYNC = 0, */
 306         CMD_ASYNC = (1 << 1),
 307         /* CMD_NO_SKB = 0, */
 308         CMD_WANT_SKB = (1 << 2),
 309 };
 310
 311 struct iwl3945_cmd;
 312 struct iwl3945_priv;
 313
 314 struct iwl3945_cmd_meta {
 315         struct iwl3945_cmd_meta *source;
 316         union {
 317                 struct sk_buff *skb;
 318                 int (*callback)(struct iwl3945_priv *priv,
 319                                 struct iwl3945_cmd *cmd, struct sk_buff *skb);
 320         } __attribute__ ((packed)) u;
 321
 322         /* The CMD_SIZE_HUGE flag bit indicates that the command
 323          * structure is stored at the end of the shared queue memory. */
 324         u32 flags;
 325
 326 } __attribute__ ((packed));
 327
 328 /**
 329  * struct iwl3945_cmd
 330  *
 331  * For allocation of the command and tx queues, this establishes the overall
 332  * size of the largest command we send to uCode, except for a scan command
 333  * (which is relatively huge; space is allocated separately).
 334  */
 335 struct iwl3945_cmd {
 336         struct iwl3945_cmd_meta meta;
 337         struct iwl3945_cmd_header hdr;
 338         union {
 339                 struct iwl3945_addsta_cmd addsta;
 340                 struct iwl3945_led_cmd led;
 341                 u32 flags;
 342                 u8 val8;
 343                 u16 val16;
 344                 u32 val32;
 345                 struct iwl3945_bt_cmd bt;
 346                 struct iwl3945_rxon_time_cmd rxon_time;
 347                 struct iwl3945_powertable_cmd powertable;
 348                 struct iwl3945_qosparam_cmd qosparam;
 349                 struct iwl3945_tx_cmd tx;
 350                 struct iwl3945_tx_beacon_cmd tx_beacon;
 351                 struct iwl3945_rxon_assoc_cmd rxon_assoc;
 352                 u8 *indirect;
 353                 u8 payload[360];
 354         } __attribute__ ((packed)) cmd;
 355 } __attribute__ ((packed));
 356
 357 struct iwl3945_host_cmd {
 358         u8 id;
 359         u16 len;
 360         struct iwl3945_cmd_meta meta;
 361         const void *data;
 362 };
 363
 364 #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl3945_cmd) - \
 365                               sizeof(struct iwl3945_cmd_meta))
 366
 367 /*
 368  * RX related structures and functions
 369  */
 370 #define RX_FREE_BUFFERS 64
 371 #define RX_LOW_WATERMARK 8
 372
 373 #define SUP_RATE_11A_MAX_NUM_CHANNELS  8
 374 #define SUP_RATE_11B_MAX_NUM_CHANNELS  4
 375 #define SUP_RATE_11G_MAX_NUM_CHANNELS  12
 376
 377 /**
 378  * struct iwl3945_rx_queue - Rx queue
 379  * @processed: Internal index to last handled Rx packet
 380  * @read: Shared index to newest available Rx buffer
 381  * @write: Shared index to oldest written Rx packet
 382  * @free_count: Number of pre-allocated buffers in rx_free
 383  * @rx_free: list of free SKBs for use
 384  * @rx_used: List of Rx buffers with no SKB
 385  * @need_update: flag to indicate we need to update read/write index
 386  *
 387  * NOTE:  rx_free and rx_used are used as a FIFO for iwl3945_rx_mem_buffers
 388  */
 389 struct iwl3945_rx_queue {
 390         __le32 *bd;
 391         dma_addr_t dma_addr;
 392         struct iwl3945_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
 393         struct iwl3945_rx_mem_buffer *queue[RX_QUEUE_SIZE];
 394         u32 processed;
 395         u32 read;
 396         u32 write;
 397         u32 free_count;
 398         struct list_head rx_free;
 399         struct list_head rx_used;
 400         int need_update;
 401         spinlock_t lock;
 402 };
 403
 404 #define IWL_SUPPORTED_RATES_IE_LEN         8
 405
 406 #define SCAN_INTERVAL 100
 407
 408 #define MAX_A_CHANNELS  252
 409 #define MIN_A_CHANNELS  7
 410
 411 #define MAX_B_CHANNELS  14
 412 #define MIN_B_CHANNELS  1
 413
 414 #define STATUS_HCMD_ACTIVE      0       /* host command in progress */
 415 #define STATUS_HCMD_SYNC_ACTIVE 1       /* sync host command in progress */
 416 #define STATUS_INT_ENABLED      2
 417 #define STATUS_RF_KILL_HW       3
 418 #define STATUS_RF_KILL_SW       4
 419 #define STATUS_INIT             5
 420 #define STATUS_ALIVE            6
 421 #define STATUS_READY            7
 422 #define STATUS_TEMPERATURE      8
 423 #define STATUS_GEO_CONFIGURED   9
 424 #define STATUS_EXIT_PENDING     10
 425 #define STATUS_IN_SUSPEND       11
 426 #define STATUS_STATISTICS       12
 427 #define STATUS_SCANNING         13
 428 #define STATUS_SCAN_ABORTING    14
 429 #define STATUS_SCAN_HW          15
 430 #define STATUS_POWER_PMI        16
 431 #define STATUS_FW_ERROR         17
 432 #define STATUS_CONF_PENDING     18
 433
 434 #define MAX_TID_COUNT        9
 435
 436 #define IWL_INVALID_RATE     0xFF
 437 #define IWL_INVALID_VALUE    -1
 438
 439 struct iwl3945_tid_data {
 440         u16 seq_number;
 441 };
 442
 443 struct iwl3945_hw_key {
 444         enum ieee80211_key_alg alg;
 445         int keylen;
 446         u8 key[32];
 447 };
 448
 449 union iwl3945_ht_rate_supp {
 450         u16 rates;
 451         struct {
 452                 u8 siso_rate;
 453                 u8 mimo_rate;
 454         };
 455 };
 456
 457 union iwl3945_qos_capabity {
 458         struct {
 459                 u8 edca_count:4;        /* bit 0-3 */
 460                 u8 q_ack:1;             /* bit 4 */
 461                 u8 queue_request:1;     /* bit 5 */
 462                 u8 txop_request:1;      /* bit 6 */
 463                 u8 reserved:1;          /* bit 7 */
 464         } q_AP;
 465         struct {
 466                 u8 acvo_APSD:1;         /* bit 0 */
 467                 u8 acvi_APSD:1;         /* bit 1 */
 468                 u8 ac_bk_APSD:1;        /* bit 2 */
 469                 u8 ac_be_APSD:1;        /* bit 3 */
 470                 u8 q_ack:1;             /* bit 4 */
 471                 u8 max_len:2;           /* bit 5-6 */
 472                 u8 more_data_ack:1;     /* bit 7 */
 473         } q_STA;
 474         u8 val;
 475 };
 476
 477 /* QoS structures */
 478 struct iwl3945_qos_info {
 479         int qos_active;
 480         union iwl3945_qos_capabity qos_cap;
 481         struct iwl3945_qosparam_cmd def_qos_parm;
 482 };
 483
 484 #define STA_PS_STATUS_WAKE             0
 485 #define STA_PS_STATUS_SLEEP            1
 486
 487 struct iwl3945_station_entry {
 488         struct iwl3945_addsta_cmd sta;
 489         struct iwl3945_tid_data tid[MAX_TID_COUNT];
 490         union {
 491                 struct {
 492                         u8 rate;
 493                         u8 flags;
 494                 } s;
 495                 u16 rate_n_flags;
 496         } current_rate;
 497         u8 used;
 498         u8 ps_status;
 499         struct iwl3945_hw_key keyinfo;
 500 };
 501
 502 /* one for each uCode image (inst/data, boot/init/runtime) */
 503 struct fw_desc {
 504         void *v_addr;           /* access by driver */
 505         dma_addr_t p_addr;      /* access by card's busmaster DMA */
 506         u32 len;                /* bytes */
 507 };
 508
 509 /* uCode file layout */
 510 struct iwl3945_ucode {
 511         __le32 ver;             /* major/minor/API/serial */
 512         __le32 inst_size;       /* bytes of runtime instructions */
 513         __le32 data_size;       /* bytes of runtime data */
 514         __le32 init_size;       /* bytes of initialization instructions */
 515         __le32 init_data_size;  /* bytes of initialization data */
 516         __le32 boot_size;       /* bytes of bootstrap instructions */
 517         u8 data[0];             /* data in same order as "size" elements */
 518 };
 519
 520 struct iwl3945_ibss_seq {
 521         u8 mac[ETH_ALEN];
 522         u16 seq_num;
 523         u16 frag_num;
 524         unsigned long packet_time;
 525         struct list_head list;
 526 };
 527
 528 /**
 529  * struct iwl3945_driver_hw_info
 530  * @max_txq_num: Max # Tx queues supported
 531  * @tx_cmd_len: Size of Tx command (but not including frame itself)
 532  * @tx_ant_num: Number of TX antennas
 533  * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
 534  * @rx_buf_size:
 535  * @max_pkt_size:
 536  * @max_rxq_log: Log-base-2 of max_rxq_size
 537  * @max_stations:
 538  * @bcast_sta_id:
 539  * @shared_virt: Pointer to driver/uCode shared Tx Byte Counts and Rx status
 540  * @shared_phys: Physical Pointer to Tx Byte Counts and Rx status
 541  */
 542 struct iwl3945_driver_hw_info {
 543         u16 max_txq_num;
 544         u16 tx_cmd_len;
 545         u16 tx_ant_num;
 546         u16 max_rxq_size;
 547         u32 rx_buf_size;
 548         u32 max_pkt_size;
 549         u16 max_rxq_log;
 550         u8  max_stations;
 551         u8  bcast_sta_id;
 552         void *shared_virt;
 553         dma_addr_t shared_phys;
 554 };
 555
 556 #define IWL_RX_HDR(x) ((struct iwl3945_rx_frame_hdr *)(\
 557                        x->u.rx_frame.stats.payload + \
 558                        x->u.rx_frame.stats.phy_count))
 559 #define IWL_RX_END(x) ((struct iwl3945_rx_frame_end *)(\
 560                        IWL_RX_HDR(x)->payload + \
 561                        le16_to_cpu(IWL_RX_HDR(x)->len)))
 562 #define IWL_RX_STATS(x) (&x->u.rx_frame.stats)
 563 #define IWL_RX_DATA(x) (IWL_RX_HDR(x)->payload)
 564
 565
 566 /******************************************************************************
 567  *
 568  * Functions implemented in iwl-base.c which are forward declared here
 569  * for use by iwl-*.c
 570  *
 571  *****************************************************************************/
 572 struct iwl3945_addsta_cmd;
 573 extern int iwl3945_send_add_station(struct iwl3945_priv *priv,
 574                                 struct iwl3945_addsta_cmd *sta, u8 flags);
 575 extern u8 iwl3945_add_station(struct iwl3945_priv *priv, const u8 *bssid,
 576                           int is_ap, u8 flags);
 577 extern int iwl3945_power_init_handle(struct iwl3945_priv *priv);
 578 extern int iwl3945_eeprom_init(struct iwl3945_priv *priv);
 579 extern int iwl3945_rx_queue_alloc(struct iwl3945_priv *priv);
 580 extern void iwl3945_rx_queue_reset(struct iwl3945_priv *priv,
 581                                struct iwl3945_rx_queue *rxq);
 582 extern int iwl3945_calc_db_from_ratio(int sig_ratio);
 583 extern int iwl3945_calc_sig_qual(int rssi_dbm, int noise_dbm);
 584 extern int iwl3945_tx_queue_init(struct iwl3945_priv *priv,
 585                              struct iwl3945_tx_queue *txq, int count, u32 id);
 586 extern void iwl3945_rx_replenish(void *data);
 587 extern void iwl3945_tx_queue_free(struct iwl3945_priv *priv, struct iwl3945_tx_queue *txq);
 588 extern int iwl3945_send_cmd_pdu(struct iwl3945_priv *priv, u8 id, u16 len,
 589                             const void *data);
 590 extern int __must_check iwl3945_send_cmd(struct iwl3945_priv *priv,
 591                 struct iwl3945_host_cmd *cmd);
 592 extern unsigned int iwl3945_fill_beacon_frame(struct iwl3945_priv *priv,
 593                                         struct ieee80211_hdr *hdr,
 594                                         const u8 *dest, int left);
 595 extern int iwl3945_rx_queue_update_write_ptr(struct iwl3945_priv *priv,
 596                                          struct iwl3945_rx_queue *q);
 597 extern int iwl3945_send_statistics_request(struct iwl3945_priv *priv);
 598 extern void iwl3945_set_decrypted_flag(struct iwl3945_priv *priv, struct sk_buff *skb,
 599                                    u32 decrypt_res,
 600                                    struct ieee80211_rx_status *stats);
 601 extern const u8 iwl3945_broadcast_addr[ETH_ALEN];
 602
 603 /*
 604  * Currently used by iwl-3945-rs... look at restructuring so that it doesn't
 605  * call this... todo... fix that.
 606 */
 607 extern u8 iwl3945_sync_station(struct iwl3945_priv *priv, int sta_id,
 608                            u16 tx_rate, u8 flags);
 609
 610 /******************************************************************************
 611  *
 612  * Functions implemented in iwl-[34]*.c which are forward declared here
 613  * for use by iwl-base.c
 614  *
 615  * NOTE:  The implementation of these functions are hardware specific
 616  * which is why they are in the hardware specific files (vs. iwl-base.c)
 617  *
 618  * Naming convention --
 619  * iwl3945_         <-- Its part of iwlwifi (should be changed to iwl3945_)
 620  * iwl3945_hw_      <-- Hardware specific (implemented in iwl-XXXX.c by all HW)
 621  * iwlXXXX_     <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
 622  * iwl3945_bg_      <-- Called from work queue context
 623  * iwl3945_mac_     <-- mac80211 callback
 624  *
 625  ****************************************************************************/
 626 extern void iwl3945_hw_rx_handler_setup(struct iwl3945_priv *priv);
 627 extern void iwl3945_hw_setup_deferred_work(struct iwl3945_priv *priv);
 628 extern void iwl3945_hw_cancel_deferred_work(struct iwl3945_priv *priv);
 629 extern int iwl3945_hw_rxq_stop(struct iwl3945_priv *priv);
 630 extern int iwl3945_hw_set_hw_setting(struct iwl3945_priv *priv);
 631 extern int iwl3945_hw_nic_init(struct iwl3945_priv *priv);
 632 extern int iwl3945_hw_nic_stop_master(struct iwl3945_priv *priv);
 633 extern void iwl3945_hw_txq_ctx_free(struct iwl3945_priv *priv);
 634 extern void iwl3945_hw_txq_ctx_stop(struct iwl3945_priv *priv);
 635 extern int iwl3945_hw_nic_reset(struct iwl3945_priv *priv);
 636 extern int iwl3945_hw_txq_attach_buf_to_tfd(struct iwl3945_priv *priv, void *tfd,
 637                                         dma_addr_t addr, u16 len);
 638 extern int iwl3945_hw_txq_free_tfd(struct iwl3945_priv *priv, struct iwl3945_tx_queue *txq);
 639 extern int iwl3945_hw_get_temperature(struct iwl3945_priv *priv);
 640 extern int iwl3945_hw_tx_queue_init(struct iwl3945_priv *priv,
 641                                 struct iwl3945_tx_queue *txq);
 642 extern unsigned int iwl3945_hw_get_beacon_cmd(struct iwl3945_priv *priv,
 643                                  struct iwl3945_frame *frame, u8 rate);
 644 extern int iwl3945_hw_get_rx_read(struct iwl3945_priv *priv);
 645 extern void iwl3945_hw_build_tx_cmd_rate(struct iwl3945_priv *priv,
 646                                      struct iwl3945_cmd *cmd,
 647                                      struct ieee80211_tx_info *info,
 648                                      struct ieee80211_hdr *hdr,
 649                                      int sta_id, int tx_id);
 650 extern int iwl3945_hw_reg_send_txpower(struct iwl3945_priv *priv);
 651 extern int iwl3945_hw_reg_set_txpower(struct iwl3945_priv *priv, s8 power);
 652 extern void iwl3945_hw_rx_statistics(struct iwl3945_priv *priv,
 653                                  struct iwl3945_rx_mem_buffer *rxb);
 654 extern void iwl3945_disable_events(struct iwl3945_priv *priv);
 655 extern int iwl4965_get_temperature(const struct iwl3945_priv *priv);
 656
 657 /**
 658  * iwl3945_hw_find_station - Find station id for a given BSSID
 659  * @bssid: MAC address of station ID to find
 660  *
 661  * NOTE:  This should not be hardware specific but the code has
 662  * not yet been merged into a single common layer for managing the
 663  * station tables.
 664  */
 665 extern u8 iwl3945_hw_find_station(struct iwl3945_priv *priv, const u8 *bssid);
 666
 667 extern int iwl3945_hw_channel_switch(struct iwl3945_priv *priv, u16 channel);
 668
 669 /*
 670  * Forward declare iwl-3945.c functions for iwl-base.c
 671  */
 672 extern __le32 iwl3945_get_antenna_flags(const struct iwl3945_priv *priv);
 673 extern int iwl3945_init_hw_rate_table(struct iwl3945_priv *priv);
 674 extern void iwl3945_reg_txpower_periodic(struct iwl3945_priv *priv);
 675 extern int iwl3945_txpower_set_from_eeprom(struct iwl3945_priv *priv);
 676 extern u8 iwl3945_sync_sta(struct iwl3945_priv *priv, int sta_id,
 677                  u16 tx_rate, u8 flags);
 678
 679
 680 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
 681
 682 enum {
 683         MEASUREMENT_READY = (1 << 0),
 684         MEASUREMENT_ACTIVE = (1 << 1),
 685 };
 686
 687 #endif
 688
 689 #ifdef CONFIG_IWL3945_RFKILL
 690 struct iwl3945_priv;
 691
 692 void iwl3945_rfkill_set_hw_state(struct iwl3945_priv *priv);
 693 void iwl3945_rfkill_unregister(struct iwl3945_priv *priv);
 694 int iwl3945_rfkill_init(struct iwl3945_priv *priv);
 695 #else
 696 static inline void iwl3945_rfkill_set_hw_state(struct iwl3945_priv *priv) {}
 697 static inline void iwl3945_rfkill_unregister(struct iwl3945_priv *priv) {}
 698 static inline int iwl3945_rfkill_init(struct iwl3945_priv *priv) { return 0; }
 699 #endif
 700
 701 #define IWL_MAX_NUM_QUEUES IWL39_MAX_NUM_QUEUES
 702
 703 struct iwl3945_priv {
 704
 705         /* ieee device used by generic ieee processing code */
 706         struct ieee80211_hw *hw;
 707         struct ieee80211_channel *ieee_channels;
 708         struct ieee80211_rate *ieee_rates;
 709         struct iwl_3945_cfg *cfg; /* device configuration */
 710
 711         /* temporary frame storage list */
 712         struct list_head free_frames;
 713         int frames_count;
 714
 715         enum ieee80211_band band;
 716         int alloc_rxb_skb;
 717
 718         void (*rx_handlers[REPLY_MAX])(struct iwl3945_priv *priv,
 719                                        struct iwl3945_rx_mem_buffer *rxb);
 720
 721         struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
 722
 723 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
 724         /* spectrum measurement report caching */
 725         struct iwl3945_spectrum_notification measure_report;
 726         u8 measurement_status;
 727 #endif
 728         /* ucode beacon time */
 729         u32 ucode_beacon_time;
 730
 731         /* we allocate array of iwl3945_channel_info for NIC's valid channels.
 732          *    Access via channel # using indirect index array */
 733         struct iwl3945_channel_info *channel_info;      /* channel info array */
 734         u8 channel_count;       /* # of channels */
 735
 736         /* each calibration channel group in the EEPROM has a derived
 737          * clip setting for each rate. */
 738         const struct iwl3945_clip_group clip_groups[5];
 739
 740         /* thermal calibration */
 741         s32 temperature;        /* degrees Kelvin */
 742         s32 last_temperature;
 743
 744         /* Scan related variables */
 745         unsigned long last_scan_jiffies;
 746         unsigned long next_scan_jiffies;
 747         unsigned long scan_start;
 748         unsigned long scan_pass_start;
 749         unsigned long scan_start_tsf;
 750         int scan_bands;
 751         int one_direct_scan;
 752         u8 direct_ssid_len;
 753         u8 direct_ssid[IW_ESSID_MAX_SIZE];
 754         struct iwl3945_scan_cmd *scan;
 755
 756         /* spinlock */
 757         spinlock_t lock;        /* protect general shared data */
 758         spinlock_t hcmd_lock;   /* protect hcmd */
 759         struct mutex mutex;
 760
 761         /* basic pci-network driver stuff */
 762         struct pci_dev *pci_dev;
 763
 764         /* pci hardware address support */
 765         void __iomem *hw_base;
 766
 767         /* uCode images, save to reload in case of failure */
 768         u32 ucode_ver;                  /* ucode version, copy of
 769                                            iwl3945_ucode.ver */
 770         struct fw_desc ucode_code;      /* runtime inst */
 771         struct fw_desc ucode_data;      /* runtime data original */
 772         struct fw_desc ucode_data_backup;       /* runtime data save/restore */
 773         struct fw_desc ucode_init;      /* initialization inst */
 774         struct fw_desc ucode_init_data; /* initialization data */
 775         struct fw_desc ucode_boot;      /* bootstrap inst */
 776
 777
 778         struct iwl3945_rxon_time_cmd rxon_timing;
 779
 780         /* We declare this const so it can only be
 781          * changed via explicit cast within the
 782          * routines that actually update the physical
 783          * hardware */
 784         const struct iwl3945_rxon_cmd active_rxon;
 785         struct iwl3945_rxon_cmd staging_rxon;
 786
 787         int error_recovering;
 788         struct iwl3945_rxon_cmd recovery_rxon;
 789
 790         /* 1st responses from initialize and runtime uCode images.
 791          * 4965's initialize alive response contains some calibration data. */
 792         struct iwl3945_init_alive_resp card_alive_init;
 793         struct iwl3945_alive_resp card_alive;
 794
 795 #ifdef CONFIG_IWL3945_RFKILL
 796         struct rfkill *rfkill;
 797 #endif
 798
 799 #ifdef CONFIG_IWL3945_LEDS
 800         struct iwl3945_led led[IWL_LED_TRG_MAX];
 801         unsigned long last_blink_time;
 802         u8 last_blink_rate;
 803         u8 allow_blinking;
 804         unsigned int rxtxpackets;
 805         u64 led_tpt;
 806 #endif
 807
 808
 809         u16 active_rate;
 810         u16 active_rate_basic;
 811
 812         u32 sta_supp_rates;
 813
 814         u8 call_post_assoc_from_beacon;
 815         /* Rate scaling data */
 816         s8 data_retry_limit;
 817         u8 retry_rate;
 818
 819         wait_queue_head_t wait_command_queue;
 820
 821         int activity_timer_active;
 822
 823         /* Rx and Tx DMA processing queues */
 824         struct iwl3945_rx_queue rxq;
 825         struct iwl3945_tx_queue txq[IWL_MAX_NUM_QUEUES];
 826
 827         unsigned long status;
 828
 829         int last_rx_rssi;       /* From Rx packet statisitics */
 830         int last_rx_noise;      /* From beacon statistics */
 831
 832         struct iwl3945_power_mgr power_data;
 833
 834         struct iwl3945_notif_statistics statistics;
 835         unsigned long last_statistics_time;
 836
 837         /* context information */
 838         u16 rates_mask;
 839
 840         u32 power_mode;
 841         u32 antenna;
 842         u8 bssid[ETH_ALEN];
 843         u16 rts_threshold;
 844         u8 mac_addr[ETH_ALEN];
 845
 846         /*station table variables */
 847         spinlock_t sta_lock;
 848         int num_stations;
 849         struct iwl3945_station_entry stations[IWL_STATION_COUNT];
 850
 851         /* Indication if ieee80211_ops->open has been called */
 852         u8 is_open;
 853
 854         u8 mac80211_registered;
 855
 856         /* Rx'd packet timing information */
 857         u32 last_beacon_time;
 858         u64 last_tsf;
 859
 860         /* eeprom */
 861         struct iwl3945_eeprom eeprom;
 862
 863         enum nl80211_iftype iw_mode;
 864
 865         struct sk_buff *ibss_beacon;
 866
 867         /* Last Rx'd beacon timestamp */
 868         u32 timestamp0;
 869         u32 timestamp1;
 870         u16 beacon_int;
 871         struct iwl3945_driver_hw_info hw_setting;
 872         struct ieee80211_vif *vif;
 873
 874         /* Current association information needed to configure the
 875          * hardware */
 876         u16 assoc_id;
 877         u16 assoc_capability;
 878         u8 ps_mode;
 879
 880         struct iwl3945_qos_info qos_data;
 881
 882         struct workqueue_struct *workqueue;
 883
 884         struct work_struct up;
 885         struct work_struct restart;
 886         struct work_struct calibrated_work;
 887         struct work_struct scan_completed;
 888         struct work_struct rx_replenish;
 889         struct work_struct rf_kill;
 890         struct work_struct abort_scan;
 891         struct work_struct update_link_led;
 892         struct work_struct auth_work;
 893         struct work_struct report_work;
 894         struct work_struct request_scan;
 895         struct work_struct beacon_update;
 896
 897         struct tasklet_struct irq_tasklet;
 898
 899         struct delayed_work init_alive_start;
 900         struct delayed_work alive_start;
 901         struct delayed_work activity_timer;
 902         struct delayed_work thermal_periodic;
 903         struct delayed_work gather_stats;
 904         struct delayed_work scan_check;
 905
 906 #define IWL_DEFAULT_TX_POWER 0x0F
 907         s8 user_txpower_limit;
 908         s8 max_channel_txpower_limit;
 909
 910
 911 #ifdef CONFIG_IWL3945_DEBUG
 912         /* debugging info */
 913         u32 framecnt_to_us;
 914         atomic_t restrict_refcnt;
 915 #endif
 916 };                              /*iwl3945_priv */
 917
 918 static inline int iwl3945_is_associated(struct iwl3945_priv *priv)
 919 {
 920         return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
 921 }
 922
 923 static inline int is_channel_valid(const struct iwl3945_channel_info *ch_info)
 924 {
 925         if (ch_info == NULL)
 926                 return 0;
 927         return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
 928 }
 929
 930 static inline int is_channel_radar(const struct iwl3945_channel_info *ch_info)
 931 {
 932         return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
 933 }
 934
 935 static inline u8 is_channel_a_band(const struct iwl3945_channel_info *ch_info)
 936 {
 937         return ch_info->band == IEEE80211_BAND_5GHZ;
 938 }
 939
 940 static inline u8 is_channel_bg_band(const struct iwl3945_channel_info *ch_info)
 941 {
 942         return ch_info->band == IEEE80211_BAND_2GHZ;
 943 }
 944
 945 static inline int is_channel_passive(const struct iwl3945_channel_info *ch)
 946 {
 947         return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
 948 }
 949
 950 static inline int is_channel_ibss(const struct iwl3945_channel_info *ch)
 951 {
 952         return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
 953 }
 954
 955 extern const struct iwl3945_channel_info *iwl3945_get_channel_info(
 956         const struct iwl3945_priv *priv, enum ieee80211_band band, u16 channel);
 957
 958 extern int iwl3945_rs_next_rate(struct iwl3945_priv *priv, int rate);
 959
 960 /* Requires full declaration of iwl3945_priv before including */
 961 #include "iwl-3945-io.h"
 962
 963 #endif