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

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2003 - 2008 Intel Corporation. All rights reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of version 2 of the GNU General Public License as
   7  * published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12  * more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along with
  15  * this program; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
  17  *
  18  * The full GNU General Public License is included in this distribution in the
  19  * file called LICENSE.
  20  *
  21  * Contact Information:
  22  * James P. Ketrenos <ipw2100-admin@linux.intel.com>
  23  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  24  *
  25  *****************************************************************************/
  26 /*
  27  * Please use this file (iwl-3945.h) for driver implementation definitions.
  28  * Please use iwl-3945-commands.h for uCode API definitions.
  29  * Please use iwl-3945-hw.h for hardware-related definitions.
  30  */
  31
  32 #ifndef __iwl_3945_h__
  33 #define __iwl_3945_h__
  34
  35 #include <linux/pci.h> /* for struct pci_device_id */
  36 #include <linux/kernel.h>
  37 #include <net/ieee80211_radiotap.h>
  38
  39 /* Hardware specific file defines the PCI IDs table for that hardware module */
  40 extern struct pci_device_id iwl3945_hw_card_ids[];
  41
  42 #define DRV_NAME        "iwl3945"
  43 #include "iwl-csr.h"
  44 #include "iwl-prph.h"
  45 #include "iwl-3945-hw.h"
  46 #include "iwl-3945-debug.h"
  47 #include "iwl-3945-led.h"
  48
  49 /* Change firmware file name, using "-" and incrementing number,
  50  *   *only* when uCode interface or architecture changes so that it
  51  *   is not compatible with earlier drivers.
  52  * This number will also appear in << 8 position of 1st dword of uCode file */
  53 #define IWL3945_UCODE_API "-1"
  54
  55 /* Default noise level to report when noise measurement is not available.
  56  *   This may be because we're:
  57  *   1)  Not associated (4965, no beacon statistics being sent to driver)
  58  *   2)  Scanning (noise measurement does not apply to associated channel)
  59  *   3)  Receiving CCK (3945 delivers noise info only for OFDM frames)
  60  * Use default noise value of -127 ... this is below the range of measurable
  61  *   Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
  62  *   Also, -127 works better than 0 when averaging frames with/without
  63  *   noise info (e.g. averaging might be done in app); measured dBm values are
  64  *   always negative ... using a negative value as the default keeps all
  65  *   averages within an s8's (used in some apps) range of negative values. */
  66 #define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
  67
  68 /* Module parameters accessible from iwl-*.c */
  69 extern int iwl3945_param_hwcrypto;
  70 extern int iwl3945_param_queues_num;
  71
  72 enum iwl3945_antenna {
  73         IWL_ANTENNA_DIVERSITY,
  74         IWL_ANTENNA_MAIN,
  75         IWL_ANTENNA_AUX
  76 };
  77
  78 /*
  79  * RTS threshold here is total size [2347] minus 4 FCS bytes
  80  * Per spec:
  81  *   a value of 0 means RTS on all data/management packets
  82  *   a value > max MSDU size means no RTS
  83  * else RTS for data/management frames where MPDU is larger
  84  *   than RTS value.
  85  */
  86 #define IWL_RX_BUF_SIZE           3000U
  87 #define DEFAULT_RTS_THRESHOLD     2347U
  88 #define MIN_RTS_THRESHOLD         0U
  89 #define MAX_RTS_THRESHOLD         2347U
  90 #define MAX_MSDU_SIZE             2304U
  91 #define MAX_MPDU_SIZE             2346U
  92 #define DEFAULT_BEACON_INTERVAL   100U
  93 #define DEFAULT_SHORT_RETRY_LIMIT 7U
  94 #define DEFAULT_LONG_RETRY_LIMIT  4U
  95
  96 struct iwl3945_rx_mem_buffer {
  97         dma_addr_t dma_addr;
  98         struct sk_buff *skb;
  99         struct list_head list;
 100 };
 101
 102 /*
 103  * Generic queue structure
 104  *
 105  * Contains common data for Rx and Tx queues
 106  */
 107 struct iwl3945_queue {
 108         int n_bd;              /* number of BDs in this queue */
 109         int write_ptr;       /* 1-st empty entry (index) host_w*/
 110         int read_ptr;         /* last used entry (index) host_r*/
 111         dma_addr_t dma_addr;   /* physical addr for BD's */
 112         int n_window;          /* safe queue window */
 113         u32 id;
 114         int low_mark;          /* low watermark, resume queue if free
 115                                 * space more than this */
 116         int high_mark;         /* high watermark, stop queue if free
 117                                 * space less than this */
 118 } __attribute__ ((packed));
 119
 120 int iwl3945_queue_space(const struct iwl3945_queue *q);
 121 int iwl3945_x2_queue_used(const struct iwl3945_queue *q, int i);
 122
 123 #define MAX_NUM_OF_TBS          (20)
 124
 125 /* One for each TFD */
 126 struct iwl3945_tx_info {
 127         struct sk_buff *skb[MAX_NUM_OF_TBS];
 128 };
 129
 130 /**
 131  * struct iwl3945_tx_queue - Tx Queue for DMA
 132  * @q: generic Rx/Tx queue descriptor
 133  * @bd: base of circular buffer of TFDs
 134  * @cmd: array of command/Tx buffers
 135  * @dma_addr_cmd: physical address of cmd/tx buffer array
 136  * @txb: array of per-TFD driver data
 137  * @need_update: indicates need to update read/write index
 138  *
 139  * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
 140  * descriptors) and required locking structures.
 141  */
 142 struct iwl3945_tx_queue {
 143         struct iwl3945_queue q;
 144         struct iwl3945_tfd_frame *bd;
 145         struct iwl3945_cmd *cmd;
 146         dma_addr_t dma_addr_cmd;
 147         struct iwl3945_tx_info *txb;
 148         int need_update;
 149         int active;
 150 };
 151
 152 #define IWL_NUM_SCAN_RATES         (2)
 153
 154 struct iwl3945_channel_tgd_info {
 155         u8 type;
 156         s8 max_power;
 157 };
 158
 159 struct iwl3945_channel_tgh_info {
 160         s64 last_radar_time;
 161 };
 162
 163 /* current Tx power values to use, one for each rate for each channel.
 164  * requested power is limited by:
 165  * -- regulatory EEPROM limits for this channel
 166  * -- hardware capabilities (clip-powers)
 167  * -- spectrum management
 168  * -- user preference (e.g. iwconfig)
 169  * when requested power is set, base power index must also be set. */
 170 struct iwl3945_channel_power_info {
 171         struct iwl3945_tx_power tpc;    /* actual radio and DSP gain settings */
 172         s8 power_table_index;   /* actual (compenst'd) index into gain table */
 173         s8 base_power_index;    /* gain index for power at factory temp. */
 174         s8 requested_power;     /* power (dBm) requested for this chnl/rate */
 175 };
 176
 177 /* current scan Tx power values to use, one for each scan rate for each
 178  * channel. */
 179 struct iwl3945_scan_power_info {
 180         struct iwl3945_tx_power tpc;    /* actual radio and DSP gain settings */
 181         s8 power_table_index;   /* actual (compenst'd) index into gain table */
 182         s8 requested_power;     /* scan pwr (dBm) requested for chnl/rate */
 183 };
 184
 185 /*
 186  * One for each channel, holds all channel setup data
 187  * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
 188  *     with one another!
 189  */
 190 #define IWL4965_MAX_RATE (33)
 191
 192 struct iwl3945_channel_info {
 193         struct iwl3945_channel_tgd_info tgd;
 194         struct iwl3945_channel_tgh_info tgh;
 195         struct iwl3945_eeprom_channel eeprom;   /* EEPROM regulatory limit */
 196         struct iwl3945_eeprom_channel fat_eeprom;       /* EEPROM regulatory limit for
 197                                                  * FAT channel */
 198
 199         u8 channel;       /* channel number */
 200         u8 flags;         /* flags copied from EEPROM */
 201         s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
 202         s8 curr_txpow;    /* (dBm) regulatory/spectrum/user (not h/w) */
 203         s8 min_power;     /* always 0 */
 204         s8 scan_power;    /* (dBm) regul. eeprom, direct scans, any rate */
 205
 206         u8 group_index;   /* 0-4, maps channel to group1/2/3/4/5 */
 207         u8 band_index;    /* 0-4, maps channel to band1/2/3/4/5 */
 208         enum ieee80211_band band;
 209
 210         /* Radio/DSP gain settings for each "normal" data Tx rate.
 211          * These include, in addition to RF and DSP gain, a few fields for
 212          *   remembering/modifying gain settings (indexes). */
 213         struct iwl3945_channel_power_info power_info[IWL4965_MAX_RATE];
 214
 215         /* Radio/DSP gain settings for each scan rate, for directed scans. */
 216         struct iwl3945_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES];
 217 };
 218
 219 struct iwl3945_clip_group {
 220         /* maximum power level to prevent clipping for each rate, derived by
 221          *   us from this band's saturation power in EEPROM */
 222         const s8 clip_powers[IWL_MAX_RATES];
 223 };
 224
 225 #include "iwl-3945-rs.h"
 226
 227 #define IWL_TX_FIFO_AC0 0
 228 #define IWL_TX_FIFO_AC1 1
 229 #define IWL_TX_FIFO_AC2 2
 230 #define IWL_TX_FIFO_AC3 3
 231 #define IWL_TX_FIFO_HCCA_1      5
 232 #define IWL_TX_FIFO_HCCA_2      6
 233 #define IWL_TX_FIFO_NONE        7
 234
 235 /* Minimum number of queues. MAX_NUM is defined in hw specific files */
 236 #define IWL_MIN_NUM_QUEUES      4
 237
 238 /* Power management (not Tx power) structures */
 239
 240 struct iwl3945_power_vec_entry {
 241         struct iwl3945_powertable_cmd cmd;
 242         u8 no_dtim;
 243 };
 244 #define IWL_POWER_RANGE_0  (0)
 245 #define IWL_POWER_RANGE_1  (1)
 246
 247 #define IWL_POWER_MODE_CAM      0x00    /* Continuously Aware Mode, always on */
 248 #define IWL_POWER_INDEX_3       0x03
 249 #define IWL_POWER_INDEX_5       0x05
 250 #define IWL_POWER_AC            0x06
 251 #define IWL_POWER_BATTERY       0x07
 252 #define IWL_POWER_LIMIT         0x07
 253 #define IWL_POWER_MASK          0x0F
 254 #define IWL_POWER_ENABLED       0x10
 255 #define IWL_POWER_LEVEL(x)      ((x) & IWL_POWER_MASK)
 256
 257 struct iwl3945_power_mgr {
 258         spinlock_t lock;
 259         struct iwl3945_power_vec_entry pwr_range_0[IWL_POWER_AC];
 260         struct iwl3945_power_vec_entry pwr_range_1[IWL_POWER_AC];
 261         u8 active_index;
 262         u32 dtim_val;
 263 };
 264
 265 #define IEEE80211_DATA_LEN              2304
 266 #define IEEE80211_4ADDR_LEN             30
 267 #define IEEE80211_HLEN                  (IEEE80211_4ADDR_LEN)
 268 #define IEEE80211_FRAME_LEN             (IEEE80211_DATA_LEN + IEEE80211_HLEN)
 269
 270 struct iwl3945_frame {
 271         union {
 272                 struct ieee80211_hdr frame;
 273                 struct iwl3945_tx_beacon_cmd beacon;
 274                 u8 raw[IEEE80211_FRAME_LEN];
 275                 u8 cmd[360];
 276         } u;
 277         struct list_head list;
 278 };
 279
 280 #define SEQ_TO_QUEUE(x)  ((x >> 8) & 0xbf)
 281 #define QUEUE_TO_SEQ(x)  ((x & 0xbf) << 8)
 282 #define SEQ_TO_INDEX(x) ((u8)(x & 0xff))
 283 #define INDEX_TO_SEQ(x) ((u8)(x & 0xff))
 284 #define SEQ_HUGE_FRAME  (0x4000)
 285 #define SEQ_RX_FRAME    __constant_cpu_to_le16(0x8000)
 286 #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
 287 #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
 288 #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
 289
 290 enum {
 291         /* CMD_SIZE_NORMAL = 0, */
 292         CMD_SIZE_HUGE = (1 << 0),
 293         /* CMD_SYNC = 0, */
 294         CMD_ASYNC = (1 << 1),
 295         /* CMD_NO_SKB = 0, */
 296         CMD_WANT_SKB = (1 << 2),
 297 };
 298
 299 struct iwl3945_cmd;
 300 struct iwl3945_priv;
 301
 302 struct iwl3945_cmd_meta {
 303         struct iwl3945_cmd_meta *source;
 304         union {
 305                 struct sk_buff *skb;
 306                 int (*callback)(struct iwl3945_priv *priv,
 307                                 struct iwl3945_cmd *cmd, struct sk_buff *skb);
 308         } __attribute__ ((packed)) u;
 309
 310         /* The CMD_SIZE_HUGE flag bit indicates that the command
 311          * structure is stored at the end of the shared queue memory. */
 312         u32 flags;
 313
 314 } __attribute__ ((packed));
 315
 316 /**
 317  * struct iwl3945_cmd
 318  *
 319  * For allocation of the command and tx queues, this establishes the overall
 320  * size of the largest command we send to uCode, except for a scan command
 321  * (which is relatively huge; space is allocated separately).
 322  */
 323 struct iwl3945_cmd {
 324         struct iwl3945_cmd_meta meta;
 325         struct iwl3945_cmd_header hdr;
 326         union {
 327                 struct iwl3945_addsta_cmd addsta;
 328                 struct iwl3945_led_cmd led;
 329                 u32 flags;
 330                 u8 val8;
 331                 u16 val16;
 332                 u32 val32;
 333                 struct iwl3945_bt_cmd bt;
 334                 struct iwl3945_rxon_time_cmd rxon_time;
 335                 struct iwl3945_powertable_cmd powertable;
 336                 struct iwl3945_qosparam_cmd qosparam;
 337                 struct iwl3945_tx_cmd tx;
 338                 struct iwl3945_tx_beacon_cmd tx_beacon;
 339                 struct iwl3945_rxon_assoc_cmd rxon_assoc;
 340                 u8 *indirect;
 341                 u8 payload[360];
 342         } __attribute__ ((packed)) cmd;
 343 } __attribute__ ((packed));
 344
 345 struct iwl3945_host_cmd {
 346         u8 id;
 347         u16 len;
 348         struct iwl3945_cmd_meta meta;
 349         const void *data;
 350 };
 351
 352 #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl3945_cmd) - \
 353                               sizeof(struct iwl3945_cmd_meta))
 354
 355 /*
 356  * RX related structures and functions
 357  */
 358 #define RX_FREE_BUFFERS 64
 359 #define RX_LOW_WATERMARK 8
 360
 361 #define SUP_RATE_11A_MAX_NUM_CHANNELS  8
 362 #define SUP_RATE_11B_MAX_NUM_CHANNELS  4
 363 #define SUP_RATE_11G_MAX_NUM_CHANNELS  12
 364
 365 /**
 366  * struct iwl3945_rx_queue - Rx queue
 367  * @processed: Internal index to last handled Rx packet
 368  * @read: Shared index to newest available Rx buffer
 369  * @write: Shared index to oldest written Rx packet
 370  * @free_count: Number of pre-allocated buffers in rx_free
 371  * @rx_free: list of free SKBs for use
 372  * @rx_used: List of Rx buffers with no SKB
 373  * @need_update: flag to indicate we need to update read/write index
 374  *
 375  * NOTE:  rx_free and rx_used are used as a FIFO for iwl3945_rx_mem_buffers
 376  */
 377 struct iwl3945_rx_queue {
 378         __le32 *bd;
 379         dma_addr_t dma_addr;
 380         struct iwl3945_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
 381         struct iwl3945_rx_mem_buffer *queue[RX_QUEUE_SIZE];
 382         u32 processed;
 383         u32 read;
 384         u32 write;
 385         u32 free_count;
 386         struct list_head rx_free;
 387         struct list_head rx_used;
 388         int need_update;
 389         spinlock_t lock;
 390 };
 391
 392 #define IWL_SUPPORTED_RATES_IE_LEN         8
 393
 394 #define SCAN_INTERVAL 100
 395
 396 #define MAX_A_CHANNELS  252
 397 #define MIN_A_CHANNELS  7
 398
 399 #define MAX_B_CHANNELS  14
 400 #define MIN_B_CHANNELS  1
 401
 402 #define STATUS_HCMD_ACTIVE      0       /* host command in progress */
 403 #define STATUS_HCMD_SYNC_ACTIVE 1       /* sync host command in progress */
 404 #define STATUS_INT_ENABLED      2
 405 #define STATUS_RF_KILL_HW       3
 406 #define STATUS_RF_KILL_SW       4
 407 #define STATUS_INIT             5
 408 #define STATUS_ALIVE            6
 409 #define STATUS_READY            7
 410 #define STATUS_TEMPERATURE      8
 411 #define STATUS_GEO_CONFIGURED   9
 412 #define STATUS_EXIT_PENDING     10
 413 #define STATUS_IN_SUSPEND       11
 414 #define STATUS_STATISTICS       12
 415 #define STATUS_SCANNING         13
 416 #define STATUS_SCAN_ABORTING    14
 417 #define STATUS_SCAN_HW          15
 418 #define STATUS_POWER_PMI        16
 419 #define STATUS_FW_ERROR         17
 420 #define STATUS_CONF_PENDING     18
 421
 422 #define MAX_TID_COUNT        9
 423
 424 #define IWL_INVALID_RATE     0xFF
 425 #define IWL_INVALID_VALUE    -1
 426
 427 struct iwl3945_tid_data {
 428         u16 seq_number;
 429 };
 430
 431 struct iwl3945_hw_key {
 432         enum ieee80211_key_alg alg;
 433         int keylen;
 434         u8 key[32];
 435 };
 436
 437 union iwl3945_ht_rate_supp {
 438         u16 rates;
 439         struct {
 440                 u8 siso_rate;
 441                 u8 mimo_rate;
 442         };
 443 };
 444
 445 union iwl3945_qos_capabity {
 446         struct {
 447                 u8 edca_count:4;        /* bit 0-3 */
 448                 u8 q_ack:1;             /* bit 4 */
 449                 u8 queue_request:1;     /* bit 5 */
 450                 u8 txop_request:1;      /* bit 6 */
 451                 u8 reserved:1;          /* bit 7 */
 452         } q_AP;
 453         struct {
 454                 u8 acvo_APSD:1;         /* bit 0 */
 455                 u8 acvi_APSD:1;         /* bit 1 */
 456                 u8 ac_bk_APSD:1;        /* bit 2 */
 457                 u8 ac_be_APSD:1;        /* bit 3 */
 458                 u8 q_ack:1;             /* bit 4 */
 459                 u8 max_len:2;           /* bit 5-6 */
 460                 u8 more_data_ack:1;     /* bit 7 */
 461         } q_STA;
 462         u8 val;
 463 };
 464
 465 /* QoS structures */
 466 struct iwl3945_qos_info {
 467         int qos_enable;
 468         int qos_active;
 469         union iwl3945_qos_capabity qos_cap;
 470         struct iwl3945_qosparam_cmd def_qos_parm;
 471 };
 472
 473 #define STA_PS_STATUS_WAKE             0
 474 #define STA_PS_STATUS_SLEEP            1
 475
 476 struct iwl3945_station_entry {
 477         struct iwl3945_addsta_cmd sta;
 478         struct iwl3945_tid_data tid[MAX_TID_COUNT];
 479         union {
 480                 struct {
 481                         u8 rate;
 482                         u8 flags;
 483                 } s;
 484                 u16 rate_n_flags;
 485         } current_rate;
 486         u8 used;
 487         u8 ps_status;
 488         struct iwl3945_hw_key keyinfo;
 489 };
 490
 491 /* one for each uCode image (inst/data, boot/init/runtime) */
 492 struct fw_desc {
 493         void *v_addr;           /* access by driver */
 494         dma_addr_t p_addr;      /* access by card's busmaster DMA */
 495         u32 len;                /* bytes */
 496 };
 497
 498 /* uCode file layout */
 499 struct iwl3945_ucode {
 500         __le32 ver;             /* major/minor/subminor */
 501         __le32 inst_size;       /* bytes of runtime instructions */
 502         __le32 data_size;       /* bytes of runtime data */
 503         __le32 init_size;       /* bytes of initialization instructions */
 504         __le32 init_data_size;  /* bytes of initialization data */
 505         __le32 boot_size;       /* bytes of bootstrap instructions */
 506         u8 data[0];             /* data in same order as "size" elements */
 507 };
 508
 509 #define IWL_IBSS_MAC_HASH_SIZE 32
 510
 511 struct iwl3945_ibss_seq {
 512         u8 mac[ETH_ALEN];
 513         u16 seq_num;
 514         u16 frag_num;
 515         unsigned long packet_time;
 516         struct list_head list;
 517 };
 518
 519 /**
 520  * struct iwl3945_driver_hw_info
 521  * @max_txq_num: Max # Tx queues supported
 522  * @tx_cmd_len: Size of Tx command (but not including frame itself)
 523  * @tx_ant_num: Number of TX antennas
 524  * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
 525  * @rx_buf_size:
 526  * @max_pkt_size:
 527  * @max_rxq_log: Log-base-2 of max_rxq_size
 528  * @max_stations:
 529  * @bcast_sta_id:
 530  * @shared_virt: Pointer to driver/uCode shared Tx Byte Counts and Rx status
 531  * @shared_phys: Physical Pointer to Tx Byte Counts and Rx status
 532  */
 533 struct iwl3945_driver_hw_info {
 534         u16 max_txq_num;
 535         u16 tx_cmd_len;
 536         u16 tx_ant_num;
 537         u16 max_rxq_size;
 538         u32 rx_buf_size;
 539         u32 max_pkt_size;
 540         u16 max_rxq_log;
 541         u8  max_stations;
 542         u8  bcast_sta_id;
 543         void *shared_virt;
 544         dma_addr_t shared_phys;
 545 };
 546
 547 #define IWL_RX_HDR(x) ((struct iwl3945_rx_frame_hdr *)(\
 548                        x->u.rx_frame.stats.payload + \
 549                        x->u.rx_frame.stats.phy_count))
 550 #define IWL_RX_END(x) ((struct iwl3945_rx_frame_end *)(\
 551                        IWL_RX_HDR(x)->payload + \
 552                        le16_to_cpu(IWL_RX_HDR(x)->len)))
 553 #define IWL_RX_STATS(x) (&x->u.rx_frame.stats)
 554 #define IWL_RX_DATA(x) (IWL_RX_HDR(x)->payload)
 555
 556
 557 /******************************************************************************
 558  *
 559  * Functions implemented in iwl-base.c which are forward declared here
 560  * for use by iwl-*.c
 561  *
 562  *****************************************************************************/
 563 struct iwl3945_addsta_cmd;
 564 extern int iwl3945_send_add_station(struct iwl3945_priv *priv,
 565                                 struct iwl3945_addsta_cmd *sta, u8 flags);
 566 extern u8 iwl3945_add_station(struct iwl3945_priv *priv, const u8 *bssid,
 567                           int is_ap, u8 flags);
 568 extern int iwl3945_is_network_packet(struct iwl3945_priv *priv,
 569                                  struct ieee80211_hdr *header);
 570 extern int iwl3945_power_init_handle(struct iwl3945_priv *priv);
 571 extern int iwl3945_eeprom_init(struct iwl3945_priv *priv);
 572 extern void iwl3945_handle_data_packet_monitor(struct iwl3945_priv *priv,
 573                                            struct iwl3945_rx_mem_buffer *rxb,
 574                                            void *data, short len,
 575                                            struct ieee80211_rx_status *stats,
 576                                            u16 phy_flags);
 577 extern int iwl3945_is_duplicate_packet(struct iwl3945_priv *priv,
 578                                        struct ieee80211_hdr *header);
 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 #define IWL_MAX_NUM_QUEUES IWL39_MAX_NUM_QUEUES
 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         struct iwl_3945_cfg *cfg; /* device configuration */
 698
 699         /* temporary frame storage list */
 700         struct list_head free_frames;
 701         int frames_count;
 702
 703         enum ieee80211_band band;
 704         int alloc_rxb_skb;
 705         bool add_radiotap;
 706
 707         void (*rx_handlers[REPLY_MAX])(struct iwl3945_priv *priv,
 708                                        struct iwl3945_rx_mem_buffer *rxb);
 709
 710         struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
 711
 712 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
 713         /* spectrum measurement report caching */
 714         struct iwl3945_spectrum_notification measure_report;
 715         u8 measurement_status;
 716 #endif
 717         /* ucode beacon time */
 718         u32 ucode_beacon_time;
 719
 720         /* we allocate array of iwl3945_channel_info for NIC's valid channels.
 721          *    Access via channel # using indirect index array */
 722         struct iwl3945_channel_info *channel_info;      /* channel info array */
 723         u8 channel_count;       /* # of channels */
 724
 725         /* each calibration channel group in the EEPROM has a derived
 726          * clip setting for each rate. */
 727         const struct iwl3945_clip_group clip_groups[5];
 728
 729         /* thermal calibration */
 730         s32 temperature;        /* degrees Kelvin */
 731         s32 last_temperature;
 732
 733         /* Scan related variables */
 734         unsigned long last_scan_jiffies;
 735         unsigned long next_scan_jiffies;
 736         unsigned long scan_start;
 737         unsigned long scan_pass_start;
 738         unsigned long scan_start_tsf;
 739         int scan_bands;
 740         int one_direct_scan;
 741         u8 direct_ssid_len;
 742         u8 direct_ssid[IW_ESSID_MAX_SIZE];
 743         struct iwl3945_scan_cmd *scan;
 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 CONFIG_IWL3945_LEDS
 783         struct iwl3945_led led[IWL_LED_TRG_MAX];
 784         unsigned long last_blink_time;
 785         u8 last_blink_rate;
 786         u8 allow_blinking;
 787         unsigned int rxtxpackets;
 788 #endif
 789
 790
 791         u16 active_rate;
 792         u16 active_rate_basic;
 793
 794         u8 call_post_assoc_from_beacon;
 795         /* Rate scaling data */
 796         s8 data_retry_limit;
 797         u8 retry_rate;
 798
 799         wait_queue_head_t wait_command_queue;
 800
 801         int activity_timer_active;
 802
 803         /* Rx and Tx DMA processing queues */
 804         struct iwl3945_rx_queue rxq;
 805         struct iwl3945_tx_queue txq[IWL_MAX_NUM_QUEUES];
 806
 807         unsigned long status;
 808
 809         int last_rx_rssi;       /* From Rx packet statisitics */
 810         int last_rx_noise;      /* From beacon statistics */
 811
 812         struct iwl3945_power_mgr power_data;
 813
 814         struct iwl3945_notif_statistics statistics;
 815         unsigned long last_statistics_time;
 816
 817         /* context information */
 818         u8 essid[IW_ESSID_MAX_SIZE];
 819         u8 essid_len;
 820         u16 rates_mask;
 821
 822         u32 power_mode;
 823         u32 antenna;
 824         u8 bssid[ETH_ALEN];
 825         u16 rts_threshold;
 826         u8 mac_addr[ETH_ALEN];
 827
 828         /*station table variables */
 829         spinlock_t sta_lock;
 830         int num_stations;
 831         struct iwl3945_station_entry stations[IWL_STATION_COUNT];
 832
 833         /* Indication if ieee80211_ops->open has been called */
 834         u8 is_open;
 835
 836         u8 mac80211_registered;
 837
 838         /* Rx'd packet timing information */
 839         u32 last_beacon_time;
 840         u64 last_tsf;
 841
 842         /* Duplicate packet detection */
 843         u16 last_seq_num;
 844         u16 last_frag_num;
 845         unsigned long last_packet_time;
 846
 847         /* Hash table for finding stations in IBSS network */
 848         struct list_head ibss_mac_hash[IWL_IBSS_MAC_HASH_SIZE];
 849
 850         /* eeprom */
 851         struct iwl3945_eeprom eeprom;
 852
 853         enum ieee80211_if_types iw_mode;
 854
 855         struct sk_buff *ibss_beacon;
 856
 857         /* Last Rx'd beacon timestamp */
 858         u32 timestamp0;
 859         u32 timestamp1;
 860         u16 beacon_int;
 861         struct iwl3945_driver_hw_info hw_setting;
 862         struct ieee80211_vif *vif;
 863
 864         /* Current association information needed to configure the
 865          * hardware */
 866         u16 assoc_id;
 867         u16 assoc_capability;
 868         u8 ps_mode;
 869
 870         struct iwl3945_qos_info qos_data;
 871
 872         struct workqueue_struct *workqueue;
 873
 874         struct work_struct up;
 875         struct work_struct restart;
 876         struct work_struct calibrated_work;
 877         struct work_struct scan_completed;
 878         struct work_struct rx_replenish;
 879         struct work_struct rf_kill;
 880         struct work_struct abort_scan;
 881         struct work_struct update_link_led;
 882         struct work_struct auth_work;
 883         struct work_struct report_work;
 884         struct work_struct request_scan;
 885         struct work_struct beacon_update;
 886         struct work_struct set_monitor;
 887
 888         struct tasklet_struct irq_tasklet;
 889
 890         struct delayed_work init_alive_start;
 891         struct delayed_work alive_start;
 892         struct delayed_work activity_timer;
 893         struct delayed_work thermal_periodic;
 894         struct delayed_work gather_stats;
 895         struct delayed_work scan_check;
 896         struct delayed_work post_associate;
 897
 898 #define IWL_DEFAULT_TX_POWER 0x0F
 899         s8 user_txpower_limit;
 900         s8 max_channel_txpower_limit;
 901
 902 #ifdef CONFIG_PM
 903         u32 pm_state[16];
 904 #endif
 905
 906 #ifdef CONFIG_IWL3945_DEBUG
 907         /* debugging info */
 908         u32 framecnt_to_us;
 909         atomic_t restrict_refcnt;
 910 #endif
 911 };                              /*iwl3945_priv */
 912
 913 static inline int iwl3945_is_associated(struct iwl3945_priv *priv)
 914 {
 915         return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
 916 }
 917
 918 static inline int is_channel_valid(const struct iwl3945_channel_info *ch_info)
 919 {
 920         if (ch_info == NULL)
 921                 return 0;
 922         return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
 923 }
 924
 925 static inline int is_channel_radar(const struct iwl3945_channel_info *ch_info)
 926 {
 927         return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
 928 }
 929
 930 static inline u8 is_channel_a_band(const struct iwl3945_channel_info *ch_info)
 931 {
 932         return ch_info->band == IEEE80211_BAND_5GHZ;
 933 }
 934
 935 static inline u8 is_channel_bg_band(const struct iwl3945_channel_info *ch_info)
 936 {
 937         return ch_info->band == IEEE80211_BAND_2GHZ;
 938 }
 939
 940 static inline int is_channel_passive(const struct iwl3945_channel_info *ch)
 941 {
 942         return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
 943 }
 944
 945 static inline int is_channel_ibss(const struct iwl3945_channel_info *ch)
 946 {
 947         return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
 948 }
 949
 950 extern const struct iwl3945_channel_info *iwl3945_get_channel_info(
 951         const struct iwl3945_priv *priv, enum ieee80211_band band, u16 channel);
 952
 953 /* Requires full declaration of iwl3945_priv before including */
 954 #include "iwl-3945-io.h"
 955
 956 #endif