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

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2003 - 2007 Intel Corporation. All rights reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of version 2 of the GNU General Public License as
   7  * published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12  * more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along with
  15  * this program; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
  17  *
  18  * The full GNU General Public License is included in this distribution in the
  19  * file called LICENSE.
  20  *
  21  * Contact Information:
  22  * James P. Ketrenos <ipw2100-admin@linux.intel.com>
  23  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  24  *
  25  *****************************************************************************/
  26 /*
  27  * Please use this file (iwl-3945.h) for driver implementation definitions.
  28  * Please use iwl-3945-commands.h for uCode API definitions.
  29  * Please use iwl-3945-hw.h for hardware-related definitions.
  30  */
  31
  32 #ifndef __iwl_3945_h__
  33 #define __iwl_3945_h__
  34
  35 #include <linux/pci.h> /* for struct pci_device_id */
  36 #include <linux/kernel.h>
  37 #include <net/ieee80211_radiotap.h>
  38
  39 /* Hardware specific file defines the PCI IDs table for that hardware module */
  40 extern struct pci_device_id iwl3945_hw_card_ids[];
  41
  42 #define DRV_NAME        "iwl3945"
  43 #include "iwl-3945-hw.h"
  44 #include "iwl-prph.h"
  45 #include "iwl-3945-debug.h"
  46
  47 /* Default noise level to report when noise measurement is not available.
  48  *   This may be because we're:
  49  *   1)  Not associated (4965, no beacon statistics being sent to driver)
  50  *   2)  Scanning (noise measurement does not apply to associated channel)
  51  *   3)  Receiving CCK (3945 delivers noise info only for OFDM frames)
  52  * Use default noise value of -127 ... this is below the range of measurable
  53  *   Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
  54  *   Also, -127 works better than 0 when averaging frames with/without
  55  *   noise info (e.g. averaging might be done in app); measured dBm values are
  56  *   always negative ... using a negative value as the default keeps all
  57  *   averages within an s8's (used in some apps) range of negative values. */
  58 #define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
  59
  60 /* Module parameters accessible from iwl-*.c */
  61 extern int iwl3945_param_hwcrypto;
  62 extern int iwl3945_param_queues_num;
  63
  64 enum iwl3945_antenna {
  65         IWL_ANTENNA_DIVERSITY,
  66         IWL_ANTENNA_MAIN,
  67         IWL_ANTENNA_AUX
  68 };
  69
  70 /*
  71  * RTS threshold here is total size [2347] minus 4 FCS bytes
  72  * Per spec:
  73  *   a value of 0 means RTS on all data/management packets
  74  *   a value > max MSDU size means no RTS
  75  * else RTS for data/management frames where MPDU is larger
  76  *   than RTS value.
  77  */
  78 #define IWL_RX_BUF_SIZE           3000U
  79 #define DEFAULT_RTS_THRESHOLD     2347U
  80 #define MIN_RTS_THRESHOLD         0U
  81 #define MAX_RTS_THRESHOLD         2347U
  82 #define MAX_MSDU_SIZE             2304U
  83 #define MAX_MPDU_SIZE             2346U
  84 #define DEFAULT_BEACON_INTERVAL   100U
  85 #define DEFAULT_SHORT_RETRY_LIMIT 7U
  86 #define DEFAULT_LONG_RETRY_LIMIT  4U
  87
  88 struct iwl3945_rx_mem_buffer {
  89         dma_addr_t dma_addr;
  90         struct sk_buff *skb;
  91         struct list_head list;
  92 };
  93
  94 struct iwl3945_rt_rx_hdr {
  95         struct ieee80211_radiotap_header rt_hdr;
  96         __le64 rt_tsf;          /* TSF */
  97         u8 rt_flags;            /* radiotap packet flags */
  98         u8 rt_rate;             /* rate in 500kb/s */
  99         __le16 rt_channelMHz;   /* channel in MHz */
 100         __le16 rt_chbitmask;    /* channel bitfield */
 101         s8 rt_dbmsignal;        /* signal in dBm, kluged to signed */
 102         s8 rt_dbmnoise;
 103         u8 rt_antenna;          /* antenna number */
 104         u8 payload[0];          /* payload... */
 105 } __attribute__ ((packed));
 106
 107 struct iwl3945_rt_tx_hdr {
 108         struct ieee80211_radiotap_header rt_hdr;
 109         u8 rt_rate;             /* rate in 500kb/s */
 110         __le16 rt_channel;      /* channel in mHz */
 111         __le16 rt_chbitmask;    /* channel bitfield */
 112         s8 rt_dbmsignal;        /* signal in dBm, kluged to signed */
 113         u8 rt_antenna;          /* antenna number */
 114         u8 payload[0];          /* payload... */
 115 } __attribute__ ((packed));
 116
 117 /*
 118  * Generic queue structure
 119  *
 120  * Contains common data for Rx and Tx queues
 121  */
 122 struct iwl3945_queue {
 123         int n_bd;              /* number of BDs in this queue */
 124         int write_ptr;       /* 1-st empty entry (index) host_w*/
 125         int read_ptr;         /* last used entry (index) host_r*/
 126         dma_addr_t dma_addr;   /* physical addr for BD's */
 127         int n_window;          /* safe queue window */
 128         u32 id;
 129         int low_mark;          /* low watermark, resume queue if free
 130                                 * space more than this */
 131         int high_mark;         /* high watermark, stop queue if free
 132                                 * space less than this */
 133 } __attribute__ ((packed));
 134
 135 #define MAX_NUM_OF_TBS          (20)
 136
 137 /* One for each TFD */
 138 struct iwl3945_tx_info {
 139         struct ieee80211_tx_status status;
 140         struct sk_buff *skb[MAX_NUM_OF_TBS];
 141 };
 142
 143 /**
 144  * struct iwl3945_tx_queue - Tx Queue for DMA
 145  * @q: generic Rx/Tx queue descriptor
 146  * @bd: base of circular buffer of TFDs
 147  * @cmd: array of command/Tx buffers
 148  * @dma_addr_cmd: physical address of cmd/tx buffer array
 149  * @txb: array of per-TFD driver data
 150  * @need_update: indicates need to update read/write index
 151  *
 152  * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
 153  * descriptors) and required locking structures.
 154  */
 155 struct iwl3945_tx_queue {
 156         struct iwl3945_queue q;
 157         struct iwl3945_tfd_frame *bd;
 158         struct iwl3945_cmd *cmd;
 159         dma_addr_t dma_addr_cmd;
 160         struct iwl3945_tx_info *txb;
 161         int need_update;
 162         int active;
 163 };
 164
 165 #define IWL_NUM_SCAN_RATES         (2)
 166
 167 struct iwl3945_channel_tgd_info {
 168         u8 type;
 169         s8 max_power;
 170 };
 171
 172 struct iwl3945_channel_tgh_info {
 173         s64 last_radar_time;
 174 };
 175
 176 /* current Tx power values to use, one for each rate for each channel.
 177  * requested power is limited by:
 178  * -- regulatory EEPROM limits for this channel
 179  * -- hardware capabilities (clip-powers)
 180  * -- spectrum management
 181  * -- user preference (e.g. iwconfig)
 182  * when requested power is set, base power index must also be set. */
 183 struct iwl3945_channel_power_info {
 184         struct iwl3945_tx_power tpc;    /* actual radio and DSP gain settings */
 185         s8 power_table_index;   /* actual (compenst'd) index into gain table */
 186         s8 base_power_index;    /* gain index for power at factory temp. */
 187         s8 requested_power;     /* power (dBm) requested for this chnl/rate */
 188 };
 189
 190 /* current scan Tx power values to use, one for each scan rate for each
 191  * channel. */
 192 struct iwl3945_scan_power_info {
 193         struct iwl3945_tx_power tpc;    /* actual radio and DSP gain settings */
 194         s8 power_table_index;   /* actual (compenst'd) index into gain table */
 195         s8 requested_power;     /* scan pwr (dBm) requested for chnl/rate */
 196 };
 197
 198 /*
 199  * One for each channel, holds all channel setup data
 200  * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
 201  *     with one another!
 202  */
 203 #define IWL4965_MAX_RATE (33)
 204
 205 struct iwl3945_channel_info {
 206         struct iwl3945_channel_tgd_info tgd;
 207         struct iwl3945_channel_tgh_info tgh;
 208         struct iwl3945_eeprom_channel eeprom;   /* EEPROM regulatory limit */
 209         struct iwl3945_eeprom_channel fat_eeprom;       /* EEPROM regulatory limit for
 210                                                  * FAT channel */
 211
 212         u8 channel;       /* channel number */
 213         u8 flags;         /* flags copied from EEPROM */
 214         s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
 215         s8 curr_txpow;    /* (dBm) regulatory/spectrum/user (not h/w) */
 216         s8 min_power;     /* always 0 */
 217         s8 scan_power;    /* (dBm) regul. eeprom, direct scans, any rate */
 218
 219         u8 group_index;   /* 0-4, maps channel to group1/2/3/4/5 */
 220         u8 band_index;    /* 0-4, maps channel to band1/2/3/4/5 */
 221         u8 phymode;       /* MODE_IEEE80211{A,B,G} */
 222
 223         /* Radio/DSP gain settings for each "normal" data Tx rate.
 224          * These include, in addition to RF and DSP gain, a few fields for
 225          *   remembering/modifying gain settings (indexes). */
 226         struct iwl3945_channel_power_info power_info[IWL4965_MAX_RATE];
 227
 228         /* Radio/DSP gain settings for each scan rate, for directed scans. */
 229         struct iwl3945_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES];
 230 };
 231
 232 struct iwl3945_clip_group {
 233         /* maximum power level to prevent clipping for each rate, derived by
 234          *   us from this band's saturation power in EEPROM */
 235         const s8 clip_powers[IWL_MAX_RATES];
 236 };
 237
 238 #include "iwl-3945-rs.h"
 239
 240 #define IWL_TX_FIFO_AC0 0
 241 #define IWL_TX_FIFO_AC1 1
 242 #define IWL_TX_FIFO_AC2 2
 243 #define IWL_TX_FIFO_AC3 3
 244 #define IWL_TX_FIFO_HCCA_1      5
 245 #define IWL_TX_FIFO_HCCA_2      6
 246 #define IWL_TX_FIFO_NONE        7
 247
 248 /* Minimum number of queues. MAX_NUM is defined in hw specific files */
 249 #define IWL_MIN_NUM_QUEUES      4
 250
 251 /* Power management (not Tx power) structures */
 252
 253 struct iwl3945_power_vec_entry {
 254         struct iwl3945_powertable_cmd cmd;
 255         u8 no_dtim;
 256 };
 257 #define IWL_POWER_RANGE_0  (0)
 258 #define IWL_POWER_RANGE_1  (1)
 259
 260 #define IWL_POWER_MODE_CAM      0x00    /* Continuously Aware Mode, always on */
 261 #define IWL_POWER_INDEX_3       0x03
 262 #define IWL_POWER_INDEX_5       0x05
 263 #define IWL_POWER_AC            0x06
 264 #define IWL_POWER_BATTERY       0x07
 265 #define IWL_POWER_LIMIT         0x07
 266 #define IWL_POWER_MASK          0x0F
 267 #define IWL_POWER_ENABLED       0x10
 268 #define IWL_POWER_LEVEL(x)      ((x) & IWL_POWER_MASK)
 269
 270 struct iwl3945_power_mgr {
 271         spinlock_t lock;
 272         struct iwl3945_power_vec_entry pwr_range_0[IWL_POWER_AC];
 273         struct iwl3945_power_vec_entry pwr_range_1[IWL_POWER_AC];
 274         u8 active_index;
 275         u32 dtim_val;
 276 };
 277
 278 #define IEEE80211_DATA_LEN              2304
 279 #define IEEE80211_4ADDR_LEN             30
 280 #define IEEE80211_HLEN                  (IEEE80211_4ADDR_LEN)
 281 #define IEEE80211_FRAME_LEN             (IEEE80211_DATA_LEN + IEEE80211_HLEN)
 282
 283 struct iwl3945_frame {
 284         union {
 285                 struct ieee80211_hdr frame;
 286                 struct iwl3945_tx_beacon_cmd beacon;
 287                 u8 raw[IEEE80211_FRAME_LEN];
 288                 u8 cmd[360];
 289         } u;
 290         struct list_head list;
 291 };
 292
 293 #define SEQ_TO_QUEUE(x)  ((x >> 8) & 0xbf)
 294 #define QUEUE_TO_SEQ(x)  ((x & 0xbf) << 8)
 295 #define SEQ_TO_INDEX(x) (x & 0xff)
 296 #define INDEX_TO_SEQ(x) (x & 0xff)
 297 #define SEQ_HUGE_FRAME  (0x4000)
 298 #define SEQ_RX_FRAME    __constant_cpu_to_le16(0x8000)
 299 #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
 300 #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
 301 #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
 302
 303 enum {
 304         /* CMD_SIZE_NORMAL = 0, */
 305         CMD_SIZE_HUGE = (1 << 0),
 306         /* CMD_SYNC = 0, */
 307         CMD_ASYNC = (1 << 1),
 308         /* CMD_NO_SKB = 0, */
 309         CMD_WANT_SKB = (1 << 2),
 310 };
 311
 312 struct iwl3945_cmd;
 313 struct iwl3945_priv;
 314
 315 struct iwl3945_cmd_meta {
 316         struct iwl3945_cmd_meta *source;
 317         union {
 318                 struct sk_buff *skb;
 319                 int (*callback)(struct iwl3945_priv *priv,
 320                                 struct iwl3945_cmd *cmd, struct sk_buff *skb);
 321         } __attribute__ ((packed)) u;
 322
 323         /* The CMD_SIZE_HUGE flag bit indicates that the command
 324          * structure is stored at the end of the shared queue memory. */
 325         u32 flags;
 326
 327 } __attribute__ ((packed));
 328
 329 /**
 330  * struct iwl3945_cmd
 331  *
 332  * For allocation of the command and tx queues, this establishes the overall
 333  * size of the largest command we send to uCode, except for a scan command
 334  * (which is relatively huge; space is allocated separately).
 335  */
 336 struct iwl3945_cmd {
 337         struct iwl3945_cmd_meta meta;
 338         struct iwl3945_cmd_header hdr;
 339         union {
 340                 struct iwl3945_addsta_cmd addsta;
 341                 struct iwl3945_led_cmd led;
 342                 u32 flags;
 343                 u8 val8;
 344                 u16 val16;
 345                 u32 val32;
 346                 struct iwl3945_bt_cmd bt;
 347                 struct iwl3945_rxon_time_cmd rxon_time;
 348                 struct iwl3945_powertable_cmd powertable;
 349                 struct iwl3945_qosparam_cmd qosparam;
 350                 struct iwl3945_tx_cmd tx;
 351                 struct iwl3945_tx_beacon_cmd tx_beacon;
 352                 struct iwl3945_rxon_assoc_cmd rxon_assoc;
 353                 u8 *indirect;
 354                 u8 payload[360];
 355         } __attribute__ ((packed)) cmd;
 356 } __attribute__ ((packed));
 357
 358 struct iwl3945_host_cmd {
 359         u8 id;
 360         u16 len;
 361         struct iwl3945_cmd_meta meta;
 362         const void *data;
 363 };
 364
 365 #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl3945_cmd) - \
 366                               sizeof(struct iwl3945_cmd_meta))
 367
 368 /*
 369  * RX related structures and functions
 370  */
 371 #define RX_FREE_BUFFERS 64
 372 #define RX_LOW_WATERMARK 8
 373
 374 #define SUP_RATE_11A_MAX_NUM_CHANNELS  8
 375 #define SUP_RATE_11B_MAX_NUM_CHANNELS  4
 376 #define SUP_RATE_11G_MAX_NUM_CHANNELS  12
 377
 378 /**
 379  * struct iwl3945_rx_queue - Rx queue
 380  * @processed: Internal index to last handled Rx packet
 381  * @read: Shared index to newest available Rx buffer
 382  * @write: Shared index to oldest written Rx packet
 383  * @free_count: Number of pre-allocated buffers in rx_free
 384  * @rx_free: list of free SKBs for use
 385  * @rx_used: List of Rx buffers with no SKB
 386  * @need_update: flag to indicate we need to update read/write index
 387  *
 388  * NOTE:  rx_free and rx_used are used as a FIFO for iwl3945_rx_mem_buffers
 389  */
 390 struct iwl3945_rx_queue {
 391         __le32 *bd;
 392         dma_addr_t dma_addr;
 393         struct iwl3945_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
 394         struct iwl3945_rx_mem_buffer *queue[RX_QUEUE_SIZE];
 395         u32 processed;
 396         u32 read;
 397         u32 write;
 398         u32 free_count;
 399         struct list_head rx_free;
 400         struct list_head rx_used;
 401         int need_update;
 402         spinlock_t lock;
 403 };
 404
 405 #define IWL_SUPPORTED_RATES_IE_LEN         8
 406
 407 #define SCAN_INTERVAL 100
 408
 409 #define MAX_A_CHANNELS  252
 410 #define MIN_A_CHANNELS  7
 411
 412 #define MAX_B_CHANNELS  14
 413 #define MIN_B_CHANNELS  1
 414
 415 #define STATUS_HCMD_ACTIVE      0       /* host command in progress */
 416 #define STATUS_INT_ENABLED      1
 417 #define STATUS_RF_KILL_HW       2
 418 #define STATUS_RF_KILL_SW       3
 419 #define STATUS_INIT             4
 420 #define STATUS_ALIVE            5
 421 #define STATUS_READY            6
 422 #define STATUS_TEMPERATURE      7
 423 #define STATUS_GEO_CONFIGURED   8
 424 #define STATUS_EXIT_PENDING     9
 425 #define STATUS_IN_SUSPEND       10
 426 #define STATUS_STATISTICS       11
 427 #define STATUS_SCANNING         12
 428 #define STATUS_SCAN_ABORTING    13
 429 #define STATUS_SCAN_HW          14
 430 #define STATUS_POWER_PMI        15
 431 #define STATUS_FW_ERROR         16
 432
 433 #define MAX_TID_COUNT        9
 434
 435 #define IWL_INVALID_RATE     0xFF
 436 #define IWL_INVALID_VALUE    -1
 437
 438 struct iwl3945_tid_data {
 439         u16 seq_number;
 440 };
 441
 442 struct iwl3945_hw_key {
 443         enum ieee80211_key_alg alg;
 444         int keylen;
 445         u8 key[32];
 446 };
 447
 448 union iwl3945_ht_rate_supp {
 449         u16 rates;
 450         struct {
 451                 u8 siso_rate;
 452                 u8 mimo_rate;
 453         };
 454 };
 455
 456 #ifdef CONFIG_IWL3945_HT
 457 #define CFG_HT_RX_AMPDU_FACTOR_DEF  (0x3)
 458 #define CFG_HT_MPDU_DENSITY_2USEC   (0x5)
 459 #define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_2USEC
 460
 461 struct sta_ht_info {
 462         u8 is_ht;
 463         u16 rx_mimo_ps_mode;
 464         u16 tx_mimo_ps_mode;
 465         u16 control_channel;
 466         u8 max_amsdu_size;
 467         u8 ampdu_factor;
 468         u8 mpdu_density;
 469         u8 operating_mode;
 470         u8 supported_chan_width;
 471         u8 extension_chan_offset;
 472         u8 is_green_field;
 473         u8 sgf;
 474         u8 supp_rates[16];
 475         u8 tx_chan_width;
 476         u8 chan_width_cap;
 477 };
 478 #endif                          /*CONFIG_IWL3945_HT */
 479
 480 #ifdef CONFIG_IWL3945_QOS
 481
 482 union iwl3945_qos_capabity {
 483         struct {
 484                 u8 edca_count:4;        /* bit 0-3 */
 485                 u8 q_ack:1;             /* bit 4 */
 486                 u8 queue_request:1;     /* bit 5 */
 487                 u8 txop_request:1;      /* bit 6 */
 488                 u8 reserved:1;          /* bit 7 */
 489         } q_AP;
 490         struct {
 491                 u8 acvo_APSD:1;         /* bit 0 */
 492                 u8 acvi_APSD:1;         /* bit 1 */
 493                 u8 ac_bk_APSD:1;        /* bit 2 */
 494                 u8 ac_be_APSD:1;        /* bit 3 */
 495                 u8 q_ack:1;             /* bit 4 */
 496                 u8 max_len:2;           /* bit 5-6 */
 497                 u8 more_data_ack:1;     /* bit 7 */
 498         } q_STA;
 499         u8 val;
 500 };
 501
 502 /* QoS structures */
 503 struct iwl3945_qos_info {
 504         int qos_enable;
 505         int qos_active;
 506         union iwl3945_qos_capabity qos_cap;
 507         struct iwl3945_qosparam_cmd def_qos_parm;
 508 };
 509 #endif /*CONFIG_IWL3945_QOS */
 510
 511 #define STA_PS_STATUS_WAKE             0
 512 #define STA_PS_STATUS_SLEEP            1
 513
 514 struct iwl3945_station_entry {
 515         struct iwl3945_addsta_cmd sta;
 516         struct iwl3945_tid_data tid[MAX_TID_COUNT];
 517         union {
 518                 struct {
 519                         u8 rate;
 520                         u8 flags;
 521                 } s;
 522                 u16 rate_n_flags;
 523         } current_rate;
 524         u8 used;
 525         u8 ps_status;
 526         struct iwl3945_hw_key keyinfo;
 527 };
 528
 529 /* one for each uCode image (inst/data, boot/init/runtime) */
 530 struct fw_desc {
 531         void *v_addr;           /* access by driver */
 532         dma_addr_t p_addr;      /* access by card's busmaster DMA */
 533         u32 len;                /* bytes */
 534 };
 535
 536 /* uCode file layout */
 537 struct iwl3945_ucode {
 538         __le32 ver;             /* major/minor/subminor */
 539         __le32 inst_size;       /* bytes of runtime instructions */
 540         __le32 data_size;       /* bytes of runtime data */
 541         __le32 init_size;       /* bytes of initialization instructions */
 542         __le32 init_data_size;  /* bytes of initialization data */
 543         __le32 boot_size;       /* bytes of bootstrap instructions */
 544         u8 data[0];             /* data in same order as "size" elements */
 545 };
 546
 547 #define IWL_IBSS_MAC_HASH_SIZE 32
 548
 549 struct iwl3945_ibss_seq {
 550         u8 mac[ETH_ALEN];
 551         u16 seq_num;
 552         u16 frag_num;
 553         unsigned long packet_time;
 554         struct list_head list;
 555 };
 556
 557 /**
 558  * struct iwl4965_driver_hw_info
 559  * @max_txq_num: Max # Tx queues supported
 560  * @ac_queue_count: # Tx queues for EDCA Access Categories (AC)
 561  * @tx_cmd_len: Size of Tx command (but not including frame itself)
 562  * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
 563  * @rx_buf_size:
 564  * @max_pkt_size:
 565  * @max_rxq_log: Log-base-2 of max_rxq_size
 566  * @max_stations:
 567  * @bcast_sta_id:
 568  * @shared_virt: Pointer to driver/uCode shared Tx Byte Counts and Rx status
 569  * @shared_phys: Physical Pointer to Tx Byte Counts and Rx status
 570  */
 571 struct iwl3945_driver_hw_info {
 572         u16 max_txq_num;
 573         u16 ac_queue_count;
 574         u16 tx_cmd_len;
 575         u16 max_rxq_size;
 576         u32 rx_buf_size;
 577         u32 max_pkt_size;
 578         u16 max_rxq_log;
 579         u8  max_stations;
 580         u8  bcast_sta_id;
 581         void *shared_virt;
 582         dma_addr_t shared_phys;
 583 };
 584
 585 #define IWL_RX_HDR(x) ((struct iwl3945_rx_frame_hdr *)(\
 586                        x->u.rx_frame.stats.payload + \
 587                        x->u.rx_frame.stats.phy_count))
 588 #define IWL_RX_END(x) ((struct iwl3945_rx_frame_end *)(\
 589                        IWL_RX_HDR(x)->payload + \
 590                        le16_to_cpu(IWL_RX_HDR(x)->len)))
 591 #define IWL_RX_STATS(x) (&x->u.rx_frame.stats)
 592 #define IWL_RX_DATA(x) (IWL_RX_HDR(x)->payload)
 593
 594
 595 /******************************************************************************
 596  *
 597  * Functions implemented in iwl-base.c which are forward declared here
 598  * for use by iwl-*.c
 599  *
 600  *****************************************************************************/
 601 struct iwl3945_addsta_cmd;
 602 extern int iwl3945_send_add_station(struct iwl3945_priv *priv,
 603                                 struct iwl3945_addsta_cmd *sta, u8 flags);
 604 extern u8 iwl3945_add_station(struct iwl3945_priv *priv, const u8 *bssid,
 605                           int is_ap, u8 flags);
 606 extern int iwl3945_is_network_packet(struct iwl3945_priv *priv,
 607                                  struct ieee80211_hdr *header);
 608 extern int iwl3945_power_init_handle(struct iwl3945_priv *priv);
 609 extern int iwl3945_eeprom_init(struct iwl3945_priv *priv);
 610 #ifdef CONFIG_IWL3945_DEBUG
 611 extern void iwl3945_report_frame(struct iwl3945_priv *priv,
 612                              struct iwl3945_rx_packet *pkt,
 613                              struct ieee80211_hdr *header, int group100);
 614 #else
 615 static inline void iwl3945_report_frame(struct iwl3945_priv *priv,
 616                                     struct iwl3945_rx_packet *pkt,
 617                                     struct ieee80211_hdr *header,
 618                                     int group100) {}
 619 #endif
 620 extern void iwl3945_handle_data_packet_monitor(struct iwl3945_priv *priv,
 621                                            struct iwl3945_rx_mem_buffer *rxb,
 622                                            void *data, short len,
 623                                            struct ieee80211_rx_status *stats,
 624                                            u16 phy_flags);
 625 extern int iwl3945_is_duplicate_packet(struct iwl3945_priv *priv,
 626                                        struct ieee80211_hdr *header);
 627 extern int iwl3945_rx_queue_alloc(struct iwl3945_priv *priv);
 628 extern void iwl3945_rx_queue_reset(struct iwl3945_priv *priv,
 629                                struct iwl3945_rx_queue *rxq);
 630 extern int iwl3945_calc_db_from_ratio(int sig_ratio);
 631 extern int iwl3945_calc_sig_qual(int rssi_dbm, int noise_dbm);
 632 extern int iwl3945_tx_queue_init(struct iwl3945_priv *priv,
 633                              struct iwl3945_tx_queue *txq, int count, u32 id);
 634 extern void iwl3945_rx_replenish(void *data);
 635 extern void iwl3945_tx_queue_free(struct iwl3945_priv *priv, struct iwl3945_tx_queue *txq);
 636 extern int iwl3945_send_cmd_pdu(struct iwl3945_priv *priv, u8 id, u16 len,
 637                             const void *data);
 638 extern int __must_check iwl3945_send_cmd(struct iwl3945_priv *priv,
 639                 struct iwl3945_host_cmd *cmd);
 640 extern unsigned int iwl3945_fill_beacon_frame(struct iwl3945_priv *priv,
 641                                         struct ieee80211_hdr *hdr,
 642                                         const u8 *dest, int left);
 643 extern int iwl3945_rx_queue_update_write_ptr(struct iwl3945_priv *priv,
 644                                          struct iwl3945_rx_queue *q);
 645 extern int iwl3945_send_statistics_request(struct iwl3945_priv *priv);
 646 extern void iwl3945_set_decrypted_flag(struct iwl3945_priv *priv, struct sk_buff *skb,
 647                                    u32 decrypt_res,
 648                                    struct ieee80211_rx_status *stats);
 649 extern const u8 iwl3945_broadcast_addr[ETH_ALEN];
 650
 651 /*
 652  * Currently used by iwl-3945-rs... look at restructuring so that it doesn't
 653  * call this... todo... fix that.
 654 */
 655 extern u8 iwl3945_sync_station(struct iwl3945_priv *priv, int sta_id,
 656                            u16 tx_rate, u8 flags);
 657
 658 /******************************************************************************
 659  *
 660  * Functions implemented in iwl-[34]*.c which are forward declared here
 661  * for use by iwl-base.c
 662  *
 663  * NOTE:  The implementation of these functions are hardware specific
 664  * which is why they are in the hardware specific files (vs. iwl-base.c)
 665  *
 666  * Naming convention --
 667  * iwl3945_         <-- Its part of iwlwifi (should be changed to iwl3945_)
 668  * iwl3945_hw_      <-- Hardware specific (implemented in iwl-XXXX.c by all HW)
 669  * iwlXXXX_     <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
 670  * iwl3945_bg_      <-- Called from work queue context
 671  * iwl3945_mac_     <-- mac80211 callback
 672  *
 673  ****************************************************************************/
 674 extern void iwl3945_hw_rx_handler_setup(struct iwl3945_priv *priv);
 675 extern void iwl3945_hw_setup_deferred_work(struct iwl3945_priv *priv);
 676 extern void iwl3945_hw_cancel_deferred_work(struct iwl3945_priv *priv);
 677 extern int iwl3945_hw_rxq_stop(struct iwl3945_priv *priv);
 678 extern int iwl3945_hw_set_hw_setting(struct iwl3945_priv *priv);
 679 extern int iwl3945_hw_nic_init(struct iwl3945_priv *priv);
 680 extern int iwl3945_hw_nic_stop_master(struct iwl3945_priv *priv);
 681 extern void iwl3945_hw_txq_ctx_free(struct iwl3945_priv *priv);
 682 extern void iwl3945_hw_txq_ctx_stop(struct iwl3945_priv *priv);
 683 extern int iwl3945_hw_nic_reset(struct iwl3945_priv *priv);
 684 extern int iwl3945_hw_txq_attach_buf_to_tfd(struct iwl3945_priv *priv, void *tfd,
 685                                         dma_addr_t addr, u16 len);
 686 extern int iwl3945_hw_txq_free_tfd(struct iwl3945_priv *priv, struct iwl3945_tx_queue *txq);
 687 extern int iwl3945_hw_get_temperature(struct iwl3945_priv *priv);
 688 extern int iwl3945_hw_tx_queue_init(struct iwl3945_priv *priv,
 689                                 struct iwl3945_tx_queue *txq);
 690 extern unsigned int iwl3945_hw_get_beacon_cmd(struct iwl3945_priv *priv,
 691                                  struct iwl3945_frame *frame, u8 rate);
 692 extern int iwl3945_hw_get_rx_read(struct iwl3945_priv *priv);
 693 extern void iwl3945_hw_build_tx_cmd_rate(struct iwl3945_priv *priv,
 694                                      struct iwl3945_cmd *cmd,
 695                                      struct ieee80211_tx_control *ctrl,
 696                                      struct ieee80211_hdr *hdr,
 697                                      int sta_id, int tx_id);
 698 extern int iwl3945_hw_reg_send_txpower(struct iwl3945_priv *priv);
 699 extern int iwl3945_hw_reg_set_txpower(struct iwl3945_priv *priv, s8 power);
 700 extern void iwl3945_hw_rx_statistics(struct iwl3945_priv *priv,
 701                                  struct iwl3945_rx_mem_buffer *rxb);
 702 extern void iwl3945_disable_events(struct iwl3945_priv *priv);
 703 extern int iwl4965_get_temperature(const struct iwl3945_priv *priv);
 704
 705 /**
 706  * iwl3945_hw_find_station - Find station id for a given BSSID
 707  * @bssid: MAC address of station ID to find
 708  *
 709  * NOTE:  This should not be hardware specific but the code has
 710  * not yet been merged into a single common layer for managing the
 711  * station tables.
 712  */
 713 extern u8 iwl3945_hw_find_station(struct iwl3945_priv *priv, const u8 *bssid);
 714
 715 extern int iwl3945_hw_channel_switch(struct iwl3945_priv *priv, u16 channel);
 716
 717 /*
 718  * Forward declare iwl-3945.c functions for iwl-base.c
 719  */
 720 extern int iwl3945_eeprom_acquire_semaphore(struct iwl3945_priv *priv);
 721 extern __le32 iwl3945_get_antenna_flags(const struct iwl3945_priv *priv);
 722 extern int iwl3945_init_hw_rate_table(struct iwl3945_priv *priv);
 723 extern void iwl3945_reg_txpower_periodic(struct iwl3945_priv *priv);
 724 extern int iwl3945_txpower_set_from_eeprom(struct iwl3945_priv *priv);
 725 extern u8 iwl3945_sync_sta(struct iwl3945_priv *priv, int sta_id,
 726                  u16 tx_rate, u8 flags);
 727
 728
 729 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
 730
 731 enum {
 732         MEASUREMENT_READY = (1 << 0),
 733         MEASUREMENT_ACTIVE = (1 << 1),
 734 };
 735
 736 #endif
 737
 738 struct iwl3945_priv {
 739
 740         /* ieee device used by generic ieee processing code */
 741         struct ieee80211_hw *hw;
 742         struct ieee80211_channel *ieee_channels;
 743         struct ieee80211_rate *ieee_rates;
 744         struct ieee80211_conf *cache_conf;
 745
 746         /* temporary frame storage list */
 747         struct list_head free_frames;
 748         int frames_count;
 749
 750         u8 phymode;
 751         int alloc_rxb_skb;
 752
 753         void (*rx_handlers[REPLY_MAX])(struct iwl3945_priv *priv,
 754                                        struct iwl3945_rx_mem_buffer *rxb);
 755
 756         const struct ieee80211_hw_mode *modes;
 757
 758 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
 759         /* spectrum measurement report caching */
 760         struct iwl3945_spectrum_notification measure_report;
 761         u8 measurement_status;
 762 #endif
 763         /* ucode beacon time */
 764         u32 ucode_beacon_time;
 765
 766         /* we allocate array of iwl3945_channel_info for NIC's valid channels.
 767          *    Access via channel # using indirect index array */
 768         struct iwl3945_channel_info *channel_info;      /* channel info array */
 769         u8 channel_count;       /* # of channels */
 770
 771         /* each calibration channel group in the EEPROM has a derived
 772          * clip setting for each rate. */
 773         const struct iwl3945_clip_group clip_groups[5];
 774
 775         /* thermal calibration */
 776         s32 temperature;        /* degrees Kelvin */
 777         s32 last_temperature;
 778
 779         /* Scan related variables */
 780         unsigned long last_scan_jiffies;
 781         unsigned long next_scan_jiffies;
 782         unsigned long scan_start;
 783         unsigned long scan_pass_start;
 784         unsigned long scan_start_tsf;
 785         int scan_bands;
 786         int one_direct_scan;
 787         u8 direct_ssid_len;
 788         u8 direct_ssid[IW_ESSID_MAX_SIZE];
 789         struct iwl3945_scan_cmd *scan;
 790         u8 only_active_channel;
 791
 792         /* spinlock */
 793         spinlock_t lock;        /* protect general shared data */
 794         spinlock_t hcmd_lock;   /* protect hcmd */
 795         struct mutex mutex;
 796
 797         /* basic pci-network driver stuff */
 798         struct pci_dev *pci_dev;
 799
 800         /* pci hardware address support */
 801         void __iomem *hw_base;
 802
 803         /* uCode images, save to reload in case of failure */
 804         struct fw_desc ucode_code;      /* runtime inst */
 805         struct fw_desc ucode_data;      /* runtime data original */
 806         struct fw_desc ucode_data_backup;       /* runtime data save/restore */
 807         struct fw_desc ucode_init;      /* initialization inst */
 808         struct fw_desc ucode_init_data; /* initialization data */
 809         struct fw_desc ucode_boot;      /* bootstrap inst */
 810
 811
 812         struct iwl3945_rxon_time_cmd rxon_timing;
 813
 814         /* We declare this const so it can only be
 815          * changed via explicit cast within the
 816          * routines that actually update the physical
 817          * hardware */
 818         const struct iwl3945_rxon_cmd active_rxon;
 819         struct iwl3945_rxon_cmd staging_rxon;
 820
 821         int error_recovering;
 822         struct iwl3945_rxon_cmd recovery_rxon;
 823
 824         /* 1st responses from initialize and runtime uCode images.
 825          * 4965's initialize alive response contains some calibration data. */
 826         struct iwl3945_init_alive_resp card_alive_init;
 827         struct iwl3945_alive_resp card_alive;
 828
 829 #ifdef LED
 830         /* LED related variables */
 831         struct iwl3945_activity_blink activity;
 832         unsigned long led_packets;
 833         int led_state;
 834 #endif
 835
 836         u16 active_rate;
 837         u16 active_rate_basic;
 838
 839         u8 call_post_assoc_from_beacon;
 840         u8 assoc_station_added;
 841         /* Rate scaling data */
 842         s8 data_retry_limit;
 843         u8 retry_rate;
 844
 845         wait_queue_head_t wait_command_queue;
 846
 847         int activity_timer_active;
 848
 849         /* Rx and Tx DMA processing queues */
 850         struct iwl3945_rx_queue rxq;
 851         struct iwl3945_tx_queue txq[IWL_MAX_NUM_QUEUES];
 852
 853         unsigned long status;
 854         u32 config;
 855
 856         int last_rx_rssi;       /* From Rx packet statisitics */
 857         int last_rx_noise;      /* From beacon statistics */
 858
 859         struct iwl3945_power_mgr power_data;
 860
 861         struct iwl3945_notif_statistics statistics;
 862         unsigned long last_statistics_time;
 863
 864         /* context information */
 865         u8 essid[IW_ESSID_MAX_SIZE];
 866         u8 essid_len;
 867         u16 rates_mask;
 868
 869         u32 power_mode;
 870         u32 antenna;
 871         u8 bssid[ETH_ALEN];
 872         u16 rts_threshold;
 873         u8 mac_addr[ETH_ALEN];
 874
 875         /*station table variables */
 876         spinlock_t sta_lock;
 877         int num_stations;
 878         struct iwl3945_station_entry stations[IWL_STATION_COUNT];
 879
 880         /* Indication if ieee80211_ops->open has been called */
 881         int is_open;
 882
 883         u8 mac80211_registered;
 884         int is_abg;
 885
 886         u32 notif_missed_beacons;
 887
 888         /* Rx'd packet timing information */
 889         u32 last_beacon_time;
 890         u64 last_tsf;
 891
 892         /* Duplicate packet detection */
 893         u16 last_seq_num;
 894         u16 last_frag_num;
 895         unsigned long last_packet_time;
 896
 897         /* Hash table for finding stations in IBSS network */
 898         struct list_head ibss_mac_hash[IWL_IBSS_MAC_HASH_SIZE];
 899
 900         /* eeprom */
 901         struct iwl3945_eeprom eeprom;
 902
 903         int iw_mode;
 904
 905         struct sk_buff *ibss_beacon;
 906
 907         /* Last Rx'd beacon timestamp */
 908         u32 timestamp0;
 909         u32 timestamp1;
 910         u16 beacon_int;
 911         struct iwl3945_driver_hw_info hw_setting;
 912         int interface_id;
 913
 914         /* Current association information needed to configure the
 915          * hardware */
 916         u16 assoc_id;
 917         u16 assoc_capability;
 918         u8 ps_mode;
 919
 920 #ifdef CONFIG_IWL3945_QOS
 921         struct iwl3945_qos_info qos_data;
 922 #endif /*CONFIG_IWL3945_QOS */
 923
 924         struct workqueue_struct *workqueue;
 925
 926         struct work_struct up;
 927         struct work_struct restart;
 928         struct work_struct calibrated_work;
 929         struct work_struct scan_completed;
 930         struct work_struct rx_replenish;
 931         struct work_struct rf_kill;
 932         struct work_struct abort_scan;
 933         struct work_struct update_link_led;
 934         struct work_struct auth_work;
 935         struct work_struct report_work;
 936         struct work_struct request_scan;
 937         struct work_struct beacon_update;
 938
 939         struct tasklet_struct irq_tasklet;
 940
 941         struct delayed_work init_alive_start;
 942         struct delayed_work alive_start;
 943         struct delayed_work activity_timer;
 944         struct delayed_work thermal_periodic;
 945         struct delayed_work gather_stats;
 946         struct delayed_work scan_check;
 947         struct delayed_work post_associate;
 948
 949 #define IWL_DEFAULT_TX_POWER 0x0F
 950         s8 user_txpower_limit;
 951         s8 max_channel_txpower_limit;
 952
 953 #ifdef CONFIG_PM
 954         u32 pm_state[16];
 955 #endif
 956
 957 #ifdef CONFIG_IWL3945_DEBUG
 958         /* debugging info */
 959         u32 framecnt_to_us;
 960         atomic_t restrict_refcnt;
 961 #endif
 962 };                              /*iwl3945_priv */
 963
 964 static inline int iwl3945_is_associated(struct iwl3945_priv *priv)
 965 {
 966         return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
 967 }
 968
 969 static inline int is_channel_valid(const struct iwl3945_channel_info *ch_info)
 970 {
 971         if (ch_info == NULL)
 972                 return 0;
 973         return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
 974 }
 975
 976 static inline int is_channel_narrow(const struct iwl3945_channel_info *ch_info)
 977 {
 978         return (ch_info->flags & EEPROM_CHANNEL_NARROW) ? 1 : 0;
 979 }
 980
 981 static inline int is_channel_radar(const struct iwl3945_channel_info *ch_info)
 982 {
 983         return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
 984 }
 985
 986 static inline u8 is_channel_a_band(const struct iwl3945_channel_info *ch_info)
 987 {
 988         return ch_info->phymode == MODE_IEEE80211A;
 989 }
 990
 991 static inline u8 is_channel_bg_band(const struct iwl3945_channel_info *ch_info)
 992 {
 993         return ((ch_info->phymode == MODE_IEEE80211B) ||
 994                 (ch_info->phymode == MODE_IEEE80211G));
 995 }
 996
 997 static inline int is_channel_passive(const struct iwl3945_channel_info *ch)
 998 {
 999         return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1000 }
1001
1002 static inline int is_channel_ibss(const struct iwl3945_channel_info *ch)
1003 {
1004         return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1005 }
1006
1007 extern const struct iwl3945_channel_info *iwl3945_get_channel_info(
1008         const struct iwl3945_priv *priv, int phymode, u16 channel);
1009
1010 /* Requires full declaration of iwl3945_priv before including */
1011 #include "iwl-3945-io.h"
1012
1013 #endif