iwl-dev.h revision 80bc53931bdf8284c5a95ba96d86ab6c2473a5f8
1/****************************************************************************** 2 * 3 * Copyright(c) 2003 - 2009 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-dev.h) for driver implementation definitions. 28 * Please use iwl-commands.h for uCode API definitions. 29 * Please use iwl-4965-hw.h for hardware-related definitions. 30 */ 31 32#ifndef __iwl_dev_h__ 33#define __iwl_dev_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#include "iwl-eeprom.h" 40#include "iwl-csr.h" 41#include "iwl-prph.h" 42#include "iwl-fh.h" 43#include "iwl-debug.h" 44#include "iwl-rfkill.h" 45#include "iwl-4965-hw.h" 46#include "iwl-3945-hw.h" 47#include "iwl-3945-led.h" 48#include "iwl-led.h" 49#include "iwl-power.h" 50#include "iwl-agn-rs.h" 51 52/* configuration for the iwl4965 */ 53extern struct iwl_cfg iwl4965_agn_cfg; 54extern struct iwl_cfg iwl5300_agn_cfg; 55extern struct iwl_cfg iwl5100_agn_cfg; 56extern struct iwl_cfg iwl5350_agn_cfg; 57extern struct iwl_cfg iwl5100_bg_cfg; 58extern struct iwl_cfg iwl5100_abg_cfg; 59extern struct iwl_cfg iwl5150_agn_cfg; 60extern struct iwl_cfg iwl6000_2ag_cfg; 61extern struct iwl_cfg iwl6000_2agn_cfg; 62extern struct iwl_cfg iwl6000_3agn_cfg; 63extern struct iwl_cfg iwl6050_2agn_cfg; 64extern struct iwl_cfg iwl6050_3agn_cfg; 65extern struct iwl_cfg iwl100_bgn_cfg; 66 67/* shared structures from iwl-5000.c */ 68extern struct iwl_mod_params iwl50_mod_params; 69extern struct iwl_ops iwl5000_ops; 70extern struct iwl_lib_ops iwl5000_lib; 71extern struct iwl_hcmd_ops iwl5000_hcmd; 72extern struct iwl_hcmd_utils_ops iwl5000_hcmd_utils; 73 74/* shared functions from iwl-5000.c */ 75extern u16 iwl5000_get_hcmd_size(u8 cmd_id, u16 len); 76extern u16 iwl5000_build_addsta_hcmd(const struct iwl_addsta_cmd *cmd, 77 u8 *data); 78extern void iwl5000_rts_tx_cmd_flag(struct ieee80211_tx_info *info, 79 __le32 *tx_flags); 80extern int iwl5000_calc_rssi(struct iwl_priv *priv, 81 struct iwl_rx_phy_res *rx_resp); 82 83/* CT-KILL constants */ 84#define CT_KILL_THRESHOLD 110 /* in Celsius */ 85 86/* Default noise level to report when noise measurement is not available. 87 * This may be because we're: 88 * 1) Not associated (4965, no beacon statistics being sent to driver) 89 * 2) Scanning (noise measurement does not apply to associated channel) 90 * 3) Receiving CCK (3945 delivers noise info only for OFDM frames) 91 * Use default noise value of -127 ... this is below the range of measurable 92 * Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user. 93 * Also, -127 works better than 0 when averaging frames with/without 94 * noise info (e.g. averaging might be done in app); measured dBm values are 95 * always negative ... using a negative value as the default keeps all 96 * averages within an s8's (used in some apps) range of negative values. */ 97#define IWL_NOISE_MEAS_NOT_AVAILABLE (-127) 98 99/* 100 * RTS threshold here is total size [2347] minus 4 FCS bytes 101 * Per spec: 102 * a value of 0 means RTS on all data/management packets 103 * a value > max MSDU size means no RTS 104 * else RTS for data/management frames where MPDU is larger 105 * than RTS value. 106 */ 107#define DEFAULT_RTS_THRESHOLD 2347U 108#define MIN_RTS_THRESHOLD 0U 109#define MAX_RTS_THRESHOLD 2347U 110#define MAX_MSDU_SIZE 2304U 111#define MAX_MPDU_SIZE 2346U 112#define DEFAULT_BEACON_INTERVAL 100U 113#define DEFAULT_SHORT_RETRY_LIMIT 7U 114#define DEFAULT_LONG_RETRY_LIMIT 4U 115 116struct iwl_rx_mem_buffer { 117 dma_addr_t real_dma_addr; 118 dma_addr_t aligned_dma_addr; 119 struct sk_buff *skb; 120 struct list_head list; 121}; 122 123/* 124 * Generic queue structure 125 * 126 * Contains common data for Rx and Tx queues 127 */ 128struct iwl_queue { 129 int n_bd; /* number of BDs in this queue */ 130 int write_ptr; /* 1-st empty entry (index) host_w*/ 131 int read_ptr; /* last used entry (index) host_r*/ 132 dma_addr_t dma_addr; /* physical addr for BD's */ 133 int n_window; /* safe queue window */ 134 u32 id; 135 int low_mark; /* low watermark, resume queue if free 136 * space more than this */ 137 int high_mark; /* high watermark, stop queue if free 138 * space less than this */ 139} __attribute__ ((packed)); 140 141/* One for each TFD */ 142struct iwl_tx_info { 143 struct sk_buff *skb[IWL_NUM_OF_TBS - 1]; 144}; 145 146/** 147 * struct iwl_tx_queue - Tx Queue for DMA 148 * @q: generic Rx/Tx queue descriptor 149 * @bd: base of circular buffer of TFDs 150 * @cmd: array of command/Tx buffers 151 * @dma_addr_cmd: physical address of cmd/tx buffer array 152 * @txb: array of per-TFD driver data 153 * @need_update: indicates need to update read/write index 154 * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled 155 * 156 * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame 157 * descriptors) and required locking structures. 158 */ 159#define TFD_TX_CMD_SLOTS 256 160#define TFD_CMD_SLOTS 32 161 162struct iwl_tx_queue { 163 struct iwl_queue q; 164 void *tfds; 165 struct iwl_cmd *cmd[TFD_TX_CMD_SLOTS]; 166 struct iwl_tx_info *txb; 167 u8 need_update; 168 u8 sched_retry; 169 u8 active; 170 u8 swq_id; 171}; 172 173#define IWL_NUM_SCAN_RATES (2) 174 175struct iwl4965_channel_tgd_info { 176 u8 type; 177 s8 max_power; 178}; 179 180struct iwl4965_channel_tgh_info { 181 s64 last_radar_time; 182}; 183 184#define IWL4965_MAX_RATE (33) 185 186struct iwl3945_clip_group { 187 /* maximum power level to prevent clipping for each rate, derived by 188 * us from this band's saturation power in EEPROM */ 189 const s8 clip_powers[IWL_MAX_RATES]; 190}; 191 192/* current Tx power values to use, one for each rate for each channel. 193 * requested power is limited by: 194 * -- regulatory EEPROM limits for this channel 195 * -- hardware capabilities (clip-powers) 196 * -- spectrum management 197 * -- user preference (e.g. iwconfig) 198 * when requested power is set, base power index must also be set. */ 199struct iwl3945_channel_power_info { 200 struct iwl3945_tx_power tpc; /* actual radio and DSP gain settings */ 201 s8 power_table_index; /* actual (compenst'd) index into gain table */ 202 s8 base_power_index; /* gain index for power at factory temp. */ 203 s8 requested_power; /* power (dBm) requested for this chnl/rate */ 204}; 205 206/* current scan Tx power values to use, one for each scan rate for each 207 * channel. */ 208struct iwl3945_scan_power_info { 209 struct iwl3945_tx_power tpc; /* actual radio and DSP gain settings */ 210 s8 power_table_index; /* actual (compenst'd) index into gain table */ 211 s8 requested_power; /* scan pwr (dBm) requested for chnl/rate */ 212}; 213 214/* 215 * One for each channel, holds all channel setup data 216 * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant 217 * with one another! 218 */ 219struct iwl_channel_info { 220 struct iwl4965_channel_tgd_info tgd; 221 struct iwl4965_channel_tgh_info tgh; 222 struct iwl_eeprom_channel eeprom; /* EEPROM regulatory limit */ 223 struct iwl_eeprom_channel fat_eeprom; /* EEPROM regulatory limit for 224 * FAT channel */ 225 226 u8 channel; /* channel number */ 227 u8 flags; /* flags copied from EEPROM */ 228 s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */ 229 s8 curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) limit */ 230 s8 min_power; /* always 0 */ 231 s8 scan_power; /* (dBm) regul. eeprom, direct scans, any rate */ 232 233 u8 group_index; /* 0-4, maps channel to group1/2/3/4/5 */ 234 u8 band_index; /* 0-4, maps channel to band1/2/3/4/5 */ 235 enum ieee80211_band band; 236 237 /* FAT channel info */ 238 s8 fat_max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */ 239 s8 fat_curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) */ 240 s8 fat_min_power; /* always 0 */ 241 s8 fat_scan_power; /* (dBm) eeprom, direct scans, any rate */ 242 u8 fat_flags; /* flags copied from EEPROM */ 243 u8 fat_extension_channel; /* HT_IE_EXT_CHANNEL_* */ 244 245 /* Radio/DSP gain settings for each "normal" data Tx rate. 246 * These include, in addition to RF and DSP gain, a few fields for 247 * remembering/modifying gain settings (indexes). */ 248 struct iwl3945_channel_power_info power_info[IWL4965_MAX_RATE]; 249 250 /* Radio/DSP gain settings for each scan rate, for directed scans. */ 251 struct iwl3945_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES]; 252}; 253 254#define IWL_TX_FIFO_AC0 0 255#define IWL_TX_FIFO_AC1 1 256#define IWL_TX_FIFO_AC2 2 257#define IWL_TX_FIFO_AC3 3 258#define IWL_TX_FIFO_HCCA_1 5 259#define IWL_TX_FIFO_HCCA_2 6 260#define IWL_TX_FIFO_NONE 7 261 262/* Minimum number of queues. MAX_NUM is defined in hw specific files */ 263#define IWL_MIN_NUM_QUEUES 4 264 265/* Power management (not Tx power) structures */ 266 267enum iwl_pwr_src { 268 IWL_PWR_SRC_VMAIN, 269 IWL_PWR_SRC_VAUX, 270}; 271 272#define IEEE80211_DATA_LEN 2304 273#define IEEE80211_4ADDR_LEN 30 274#define IEEE80211_HLEN (IEEE80211_4ADDR_LEN) 275#define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN) 276 277struct iwl_frame { 278 union { 279 struct ieee80211_hdr frame; 280 struct iwl_tx_beacon_cmd beacon; 281 u8 raw[IEEE80211_FRAME_LEN]; 282 u8 cmd[360]; 283 } u; 284 struct list_head list; 285}; 286 287#define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4) 288#define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ) 289#define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4) 290 291enum { 292 /* CMD_SIZE_NORMAL = 0, */ 293 CMD_SIZE_HUGE = (1 << 0), 294 /* CMD_SYNC = 0, */ 295 CMD_ASYNC = (1 << 1), 296 /* CMD_NO_SKB = 0, */ 297 CMD_WANT_SKB = (1 << 2), 298}; 299 300struct iwl_cmd; 301struct iwl_priv; 302 303struct iwl_cmd_meta { 304 struct iwl_cmd_meta *source; 305 union { 306 struct sk_buff *skb; 307 int (*callback)(struct iwl_priv *priv, 308 struct iwl_cmd *cmd, struct sk_buff *skb); 309 } __attribute__ ((packed)) u; 310 311 /* The CMD_SIZE_HUGE flag bit indicates that the command 312 * structure is stored at the end of the shared queue memory. */ 313 u32 flags; 314 DECLARE_PCI_UNMAP_ADDR(mapping) 315 DECLARE_PCI_UNMAP_LEN(len) 316} __attribute__ ((packed)); 317 318#define IWL_CMD_MAX_PAYLOAD 320 319 320/** 321 * struct iwl_cmd 322 * 323 * For allocation of the command and tx queues, this establishes the overall 324 * size of the largest command we send to uCode, except for a scan command 325 * (which is relatively huge; space is allocated separately). 326 */ 327struct iwl_cmd { 328 struct iwl_cmd_meta meta; /* driver data */ 329 struct iwl_cmd_header hdr; /* uCode API */ 330 union { 331 u32 flags; 332 u8 val8; 333 u16 val16; 334 u32 val32; 335 struct iwl_tx_cmd tx; 336 u8 payload[IWL_CMD_MAX_PAYLOAD]; 337 } __attribute__ ((packed)) cmd; 338} __attribute__ ((packed)); 339 340 341struct iwl_host_cmd { 342 u8 id; 343 u16 len; 344 struct iwl_cmd_meta meta; 345 const void *data; 346}; 347 348#define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_cmd) - \ 349 sizeof(struct iwl_cmd_meta)) 350 351/* 352 * RX related structures and functions 353 */ 354#define RX_FREE_BUFFERS 64 355#define RX_LOW_WATERMARK 8 356 357#define SUP_RATE_11A_MAX_NUM_CHANNELS 8 358#define SUP_RATE_11B_MAX_NUM_CHANNELS 4 359#define SUP_RATE_11G_MAX_NUM_CHANNELS 12 360 361/** 362 * struct iwl_rx_queue - Rx queue 363 * @read: Shared index to newest available Rx buffer 364 * @write: Shared index to oldest written Rx packet 365 * @free_count: Number of pre-allocated buffers in rx_free 366 * @rx_free: list of free SKBs for use 367 * @rx_used: List of Rx buffers with no SKB 368 * @need_update: flag to indicate we need to update read/write index 369 * 370 * NOTE: rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers 371 */ 372struct iwl_rx_queue { 373 __le32 *bd; 374 dma_addr_t dma_addr; 375 struct iwl_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS]; 376 struct iwl_rx_mem_buffer *queue[RX_QUEUE_SIZE]; 377 u32 read; 378 u32 write; 379 u32 free_count; 380 struct list_head rx_free; 381 struct list_head rx_used; 382 int need_update; 383 struct iwl_rb_status *rb_stts; 384 dma_addr_t rb_stts_dma; 385 spinlock_t lock; 386}; 387 388#define IWL_SUPPORTED_RATES_IE_LEN 8 389 390#define MAX_TID_COUNT 9 391 392#define IWL_INVALID_RATE 0xFF 393#define IWL_INVALID_VALUE -1 394 395/** 396 * struct iwl_ht_agg -- aggregation status while waiting for block-ack 397 * @txq_id: Tx queue used for Tx attempt 398 * @frame_count: # frames attempted by Tx command 399 * @wait_for_ba: Expect block-ack before next Tx reply 400 * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window 401 * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window 402 * @bitmap1: High order, one bit for each frame pending ACK in Tx window 403 * @rate_n_flags: Rate at which Tx was attempted 404 * 405 * If REPLY_TX indicates that aggregation was attempted, driver must wait 406 * for block ack (REPLY_COMPRESSED_BA). This struct stores tx reply info 407 * until block ack arrives. 408 */ 409struct iwl_ht_agg { 410 u16 txq_id; 411 u16 frame_count; 412 u16 wait_for_ba; 413 u16 start_idx; 414 u64 bitmap; 415 u32 rate_n_flags; 416#define IWL_AGG_OFF 0 417#define IWL_AGG_ON 1 418#define IWL_EMPTYING_HW_QUEUE_ADDBA 2 419#define IWL_EMPTYING_HW_QUEUE_DELBA 3 420 u8 state; 421}; 422 423 424struct iwl_tid_data { 425 u16 seq_number; 426 u16 tfds_in_queue; 427 struct iwl_ht_agg agg; 428}; 429 430struct iwl_hw_key { 431 enum ieee80211_key_alg alg; 432 int keylen; 433 u8 keyidx; 434 u8 key[32]; 435}; 436 437union iwl_ht_rate_supp { 438 u16 rates; 439 struct { 440 u8 siso_rate; 441 u8 mimo_rate; 442 }; 443}; 444 445#define CFG_HT_RX_AMPDU_FACTOR_DEF (0x3) 446#define CFG_HT_MPDU_DENSITY_2USEC (0x5) 447#define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_2USEC 448 449struct iwl_ht_info { 450 /* self configuration data */ 451 u8 is_ht; 452 u8 supported_chan_width; 453 u8 sm_ps; 454 u8 is_green_field; 455 u8 sgf; /* HT_SHORT_GI_* short guard interval */ 456 u8 max_amsdu_size; 457 u8 ampdu_factor; 458 u8 mpdu_density; 459 struct ieee80211_mcs_info mcs; 460 /* BSS related data */ 461 u8 extension_chan_offset; 462 u8 tx_chan_width; 463 u8 ht_protection; 464 u8 non_GF_STA_present; 465}; 466 467union iwl_qos_capabity { 468 struct { 469 u8 edca_count:4; /* bit 0-3 */ 470 u8 q_ack:1; /* bit 4 */ 471 u8 queue_request:1; /* bit 5 */ 472 u8 txop_request:1; /* bit 6 */ 473 u8 reserved:1; /* bit 7 */ 474 } q_AP; 475 struct { 476 u8 acvo_APSD:1; /* bit 0 */ 477 u8 acvi_APSD:1; /* bit 1 */ 478 u8 ac_bk_APSD:1; /* bit 2 */ 479 u8 ac_be_APSD:1; /* bit 3 */ 480 u8 q_ack:1; /* bit 4 */ 481 u8 max_len:2; /* bit 5-6 */ 482 u8 more_data_ack:1; /* bit 7 */ 483 } q_STA; 484 u8 val; 485}; 486 487/* QoS structures */ 488struct iwl_qos_info { 489 int qos_active; 490 union iwl_qos_capabity qos_cap; 491 struct iwl_qosparam_cmd def_qos_parm; 492}; 493 494#define STA_PS_STATUS_WAKE 0 495#define STA_PS_STATUS_SLEEP 1 496 497struct iwl3945_tid_data { 498 u16 seq_number; 499}; 500 501struct iwl3945_hw_key { 502 enum ieee80211_key_alg alg; 503 int keylen; 504 u8 key[32]; 505}; 506 507struct iwl3945_station_entry { 508 struct iwl3945_addsta_cmd sta; 509 struct iwl3945_tid_data tid[MAX_TID_COUNT]; 510 u8 used; 511 u8 ps_status; 512 struct iwl3945_hw_key keyinfo; 513}; 514 515struct iwl_station_entry { 516 struct iwl_addsta_cmd sta; 517 struct iwl_tid_data tid[MAX_TID_COUNT]; 518 u8 used; 519 u8 ps_status; 520 struct iwl_hw_key keyinfo; 521}; 522 523/* one for each uCode image (inst/data, boot/init/runtime) */ 524struct fw_desc { 525 void *v_addr; /* access by driver */ 526 dma_addr_t p_addr; /* access by card's busmaster DMA */ 527 u32 len; /* bytes */ 528}; 529 530/* uCode file layout */ 531struct iwl_ucode { 532 __le32 ver; /* major/minor/API/serial */ 533 __le32 inst_size; /* bytes of runtime instructions */ 534 __le32 data_size; /* bytes of runtime data */ 535 __le32 init_size; /* bytes of initialization instructions */ 536 __le32 init_data_size; /* bytes of initialization data */ 537 __le32 boot_size; /* bytes of bootstrap instructions */ 538 u8 data[0]; /* data in same order as "size" elements */ 539}; 540 541struct iwl4965_ibss_seq { 542 u8 mac[ETH_ALEN]; 543 u16 seq_num; 544 u16 frag_num; 545 unsigned long packet_time; 546 struct list_head list; 547}; 548 549struct iwl_sensitivity_ranges { 550 u16 min_nrg_cck; 551 u16 max_nrg_cck; 552 553 u16 nrg_th_cck; 554 u16 nrg_th_ofdm; 555 556 u16 auto_corr_min_ofdm; 557 u16 auto_corr_min_ofdm_mrc; 558 u16 auto_corr_min_ofdm_x1; 559 u16 auto_corr_min_ofdm_mrc_x1; 560 561 u16 auto_corr_max_ofdm; 562 u16 auto_corr_max_ofdm_mrc; 563 u16 auto_corr_max_ofdm_x1; 564 u16 auto_corr_max_ofdm_mrc_x1; 565 566 u16 auto_corr_max_cck; 567 u16 auto_corr_max_cck_mrc; 568 u16 auto_corr_min_cck; 569 u16 auto_corr_min_cck_mrc; 570}; 571 572 573#define KELVIN_TO_CELSIUS(x) ((x)-273) 574#define CELSIUS_TO_KELVIN(x) ((x)+273) 575 576 577/** 578 * struct iwl_hw_params 579 * @max_txq_num: Max # Tx queues supported 580 * @dma_chnl_num: Number of Tx DMA/FIFO channels 581 * @scd_bc_tbls_size: size of scheduler byte count tables 582 * @tfd_size: TFD size 583 * @tx/rx_chains_num: Number of TX/RX chains 584 * @valid_tx/rx_ant: usable antennas 585 * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2) 586 * @max_rxq_log: Log-base-2 of max_rxq_size 587 * @rx_buf_size: Rx buffer size 588 * @rx_wrt_ptr_reg: FH{39}_RSCSR_CHNL0_WPTR 589 * @max_stations: 590 * @bcast_sta_id: 591 * @fat_channel: is 40MHz width possible in band 2.4 592 * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ) 593 * @sw_crypto: 0 for hw, 1 for sw 594 * @max_xxx_size: for ucode uses 595 * @ct_kill_threshold: temperature threshold 596 * @calib_init_cfg: setup initial calibrations for the hw 597 * @struct iwl_sensitivity_ranges: range of sensitivity values 598 */ 599struct iwl_hw_params { 600 u8 max_txq_num; 601 u8 dma_chnl_num; 602 u16 scd_bc_tbls_size; 603 u32 tfd_size; 604 u8 tx_chains_num; 605 u8 rx_chains_num; 606 u8 valid_tx_ant; 607 u8 valid_rx_ant; 608 u16 max_rxq_size; 609 u16 max_rxq_log; 610 u32 rx_buf_size; 611 u32 rx_wrt_ptr_reg; 612 u32 max_pkt_size; 613 u8 max_stations; 614 u8 bcast_sta_id; 615 u8 fat_channel; 616 u8 sw_crypto; 617 u32 max_inst_size; 618 u32 max_data_size; 619 u32 max_bsm_size; 620 u32 ct_kill_threshold; /* value in hw-dependent units */ 621 u32 calib_init_cfg; 622 const struct iwl_sensitivity_ranges *sens; 623}; 624 625 626/****************************************************************************** 627 * 628 * Functions implemented in core module which are forward declared here 629 * for use by iwl-[4-5].c 630 * 631 * NOTE: The implementation of these functions are not hardware specific 632 * which is why they are in the core module files. 633 * 634 * Naming convention -- 635 * iwl_ <-- Is part of iwlwifi 636 * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX) 637 * iwl4965_bg_ <-- Called from work queue context 638 * iwl4965_mac_ <-- mac80211 callback 639 * 640 ****************************************************************************/ 641extern void iwl_update_chain_flags(struct iwl_priv *priv); 642extern int iwl_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src); 643extern const u8 iwl_bcast_addr[ETH_ALEN]; 644extern int iwl_rxq_stop(struct iwl_priv *priv); 645extern void iwl_txq_ctx_stop(struct iwl_priv *priv); 646extern int iwl_queue_space(const struct iwl_queue *q); 647static inline int iwl_queue_used(const struct iwl_queue *q, int i) 648{ 649 return q->write_ptr > q->read_ptr ? 650 (i >= q->read_ptr && i < q->write_ptr) : 651 !(i < q->read_ptr && i >= q->write_ptr); 652} 653 654 655static inline u8 get_cmd_index(struct iwl_queue *q, u32 index, int is_huge) 656{ 657 /* This is for scan command, the big buffer at end of command array */ 658 if (is_huge) 659 return q->n_window; /* must be power of 2 */ 660 661 /* Otherwise, use normal size buffers */ 662 return index & (q->n_window - 1); 663} 664 665 666struct iwl_dma_ptr { 667 dma_addr_t dma; 668 void *addr; 669 size_t size; 670}; 671 672#define HT_SHORT_GI_20MHZ (1 << 0) 673#define HT_SHORT_GI_40MHZ (1 << 1) 674 675#define IWL_CHANNEL_WIDTH_20MHZ 0 676#define IWL_CHANNEL_WIDTH_40MHZ 1 677 678#define IWL_OPERATION_MODE_AUTO 0 679#define IWL_OPERATION_MODE_HT_ONLY 1 680#define IWL_OPERATION_MODE_MIXED 2 681#define IWL_OPERATION_MODE_20MHZ 3 682 683#define IWL_TX_CRC_SIZE 4 684#define IWL_TX_DELIMITER_SIZE 4 685 686#define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000 687 688/* Sensitivity and chain noise calibration */ 689#define INITIALIZATION_VALUE 0xFFFF 690#define CAL_NUM_OF_BEACONS 20 691#define MAXIMUM_ALLOWED_PATHLOSS 15 692 693#define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3 694 695#define MAX_FA_OFDM 50 696#define MIN_FA_OFDM 5 697#define MAX_FA_CCK 50 698#define MIN_FA_CCK 5 699 700#define AUTO_CORR_STEP_OFDM 1 701 702#define AUTO_CORR_STEP_CCK 3 703#define AUTO_CORR_MAX_TH_CCK 160 704 705#define NRG_DIFF 2 706#define NRG_STEP_CCK 2 707#define NRG_MARGIN 8 708#define MAX_NUMBER_CCK_NO_FA 100 709 710#define AUTO_CORR_CCK_MIN_VAL_DEF (125) 711 712#define CHAIN_A 0 713#define CHAIN_B 1 714#define CHAIN_C 2 715#define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4 716#define ALL_BAND_FILTER 0xFF00 717#define IN_BAND_FILTER 0xFF 718#define MIN_AVERAGE_NOISE_MAX_VALUE 0xFFFFFFFF 719 720#define NRG_NUM_PREV_STAT_L 20 721#define NUM_RX_CHAINS 3 722 723enum iwl4965_false_alarm_state { 724 IWL_FA_TOO_MANY = 0, 725 IWL_FA_TOO_FEW = 1, 726 IWL_FA_GOOD_RANGE = 2, 727}; 728 729enum iwl4965_chain_noise_state { 730 IWL_CHAIN_NOISE_ALIVE = 0, /* must be 0 */ 731 IWL_CHAIN_NOISE_ACCUMULATE, 732 IWL_CHAIN_NOISE_CALIBRATED, 733 IWL_CHAIN_NOISE_DONE, 734}; 735 736enum iwl4965_calib_enabled_state { 737 IWL_CALIB_DISABLED = 0, /* must be 0 */ 738 IWL_CALIB_ENABLED = 1, 739}; 740 741 742/* 743 * enum iwl_calib 744 * defines the order in which results of initial calibrations 745 * should be sent to the runtime uCode 746 */ 747enum iwl_calib { 748 IWL_CALIB_XTAL, 749 IWL_CALIB_DC, 750 IWL_CALIB_LO, 751 IWL_CALIB_TX_IQ, 752 IWL_CALIB_TX_IQ_PERD, 753 IWL_CALIB_BASE_BAND, 754 IWL_CALIB_MAX 755}; 756 757/* Opaque calibration results */ 758struct iwl_calib_result { 759 void *buf; 760 size_t buf_len; 761}; 762 763enum ucode_type { 764 UCODE_NONE = 0, 765 UCODE_INIT, 766 UCODE_RT 767}; 768 769/* Sensitivity calib data */ 770struct iwl_sensitivity_data { 771 u32 auto_corr_ofdm; 772 u32 auto_corr_ofdm_mrc; 773 u32 auto_corr_ofdm_x1; 774 u32 auto_corr_ofdm_mrc_x1; 775 u32 auto_corr_cck; 776 u32 auto_corr_cck_mrc; 777 778 u32 last_bad_plcp_cnt_ofdm; 779 u32 last_fa_cnt_ofdm; 780 u32 last_bad_plcp_cnt_cck; 781 u32 last_fa_cnt_cck; 782 783 u32 nrg_curr_state; 784 u32 nrg_prev_state; 785 u32 nrg_value[10]; 786 u8 nrg_silence_rssi[NRG_NUM_PREV_STAT_L]; 787 u32 nrg_silence_ref; 788 u32 nrg_energy_idx; 789 u32 nrg_silence_idx; 790 u32 nrg_th_cck; 791 s32 nrg_auto_corr_silence_diff; 792 u32 num_in_cck_no_fa; 793 u32 nrg_th_ofdm; 794}; 795 796/* Chain noise (differential Rx gain) calib data */ 797struct iwl_chain_noise_data { 798 u32 active_chains; 799 u32 chain_noise_a; 800 u32 chain_noise_b; 801 u32 chain_noise_c; 802 u32 chain_signal_a; 803 u32 chain_signal_b; 804 u32 chain_signal_c; 805 u16 beacon_count; 806 u8 disconn_array[NUM_RX_CHAINS]; 807 u8 delta_gain_code[NUM_RX_CHAINS]; 808 u8 radio_write; 809 u8 state; 810}; 811 812#define EEPROM_SEM_TIMEOUT 10 /* milliseconds */ 813#define EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */ 814 815 816enum { 817 MEASUREMENT_READY = (1 << 0), 818 MEASUREMENT_ACTIVE = (1 << 1), 819}; 820 821 822#define IWL_MAX_NUM_QUEUES 20 /* FIXME: do dynamic allocation */ 823 824struct iwl_priv { 825 826 /* ieee device used by generic ieee processing code */ 827 struct ieee80211_hw *hw; 828 struct ieee80211_channel *ieee_channels; 829 struct ieee80211_rate *ieee_rates; 830 struct iwl_cfg *cfg; 831 832 /* temporary frame storage list */ 833 struct list_head free_frames; 834 int frames_count; 835 836 enum ieee80211_band band; 837 int alloc_rxb_skb; 838 839 void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv, 840 struct iwl_rx_mem_buffer *rxb); 841 842 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS]; 843 844#if defined(CONFIG_IWLWIFI_SPECTRUM_MEASUREMENT) || defined(CONFIG_IWL3945_SPECTRUM_MEASUREMENT) 845 /* spectrum measurement report caching */ 846 struct iwl_spectrum_notification measure_report; 847 u8 measurement_status; 848#endif 849 /* ucode beacon time */ 850 u32 ucode_beacon_time; 851 852 /* we allocate array of iwl4965_channel_info for NIC's valid channels. 853 * Access via channel # using indirect index array */ 854 struct iwl_channel_info *channel_info; /* channel info array */ 855 u8 channel_count; /* # of channels */ 856 857 /* each calibration channel group in the EEPROM has a derived 858 * clip setting for each rate. 3945 only.*/ 859 const struct iwl3945_clip_group clip39_groups[5]; 860 861 /* thermal calibration */ 862 s32 temperature; /* degrees Kelvin */ 863 s32 last_temperature; 864 865 /* init calibration results */ 866 struct iwl_calib_result calib_results[IWL_CALIB_MAX]; 867 868 /* Scan related variables */ 869 unsigned long last_scan_jiffies; 870 unsigned long next_scan_jiffies; 871 unsigned long scan_start; 872 unsigned long scan_pass_start; 873 unsigned long scan_start_tsf; 874 void *scan; 875 int scan_bands; 876 int one_direct_scan; 877 u8 direct_ssid_len; 878 u8 direct_ssid[IW_ESSID_MAX_SIZE]; 879 u8 scan_tx_ant[IEEE80211_NUM_BANDS]; 880 u8 mgmt_tx_ant; 881 882 /* spinlock */ 883 spinlock_t lock; /* protect general shared data */ 884 spinlock_t hcmd_lock; /* protect hcmd */ 885 struct mutex mutex; 886 887 /* basic pci-network driver stuff */ 888 struct pci_dev *pci_dev; 889 890 /* pci hardware address support */ 891 void __iomem *hw_base; 892 u32 hw_rev; 893 u32 hw_wa_rev; 894 u8 rev_id; 895 896 /* uCode images, save to reload in case of failure */ 897 u32 ucode_ver; /* version of ucode, copy of 898 iwl_ucode.ver */ 899 struct fw_desc ucode_code; /* runtime inst */ 900 struct fw_desc ucode_data; /* runtime data original */ 901 struct fw_desc ucode_data_backup; /* runtime data save/restore */ 902 struct fw_desc ucode_init; /* initialization inst */ 903 struct fw_desc ucode_init_data; /* initialization data */ 904 struct fw_desc ucode_boot; /* bootstrap inst */ 905 enum ucode_type ucode_type; 906 u8 ucode_write_complete; /* the image write is complete */ 907 908 909 struct iwl_rxon_time_cmd rxon_timing; 910 911 /* We declare this const so it can only be 912 * changed via explicit cast within the 913 * routines that actually update the physical 914 * hardware */ 915 const struct iwl_rxon_cmd active_rxon; 916 struct iwl_rxon_cmd staging_rxon; 917 918 int error_recovering; 919 struct iwl_rxon_cmd recovery_rxon; 920 921 /* 1st responses from initialize and runtime uCode images. 922 * 4965's initialize alive response contains some calibration data. */ 923 struct iwl_init_alive_resp card_alive_init; 924 struct iwl_alive_resp card_alive; 925#if defined(CONFIG_IWLWIFI_RFKILL) 926 struct rfkill *rfkill; 927#endif 928 929#if defined(CONFIG_IWLWIFI_LEDS) || defined(CONFIG_IWL3945_LEDS) 930 unsigned long last_blink_time; 931 u8 last_blink_rate; 932 u8 allow_blinking; 933 u64 led_tpt; 934#endif 935 936#ifdef CONFIG_IWLWIFI_LEDS 937 struct iwl_led led[IWL_LED_TRG_MAX]; 938#endif 939 940#ifdef CONFIG_IWL3945_LEDS 941 struct iwl3945_led led39[IWL_LED_TRG_MAX]; 942 unsigned int rxtxpackets; 943#endif 944 u16 active_rate; 945 u16 active_rate_basic; 946 947 u8 assoc_station_added; 948 u8 start_calib; 949 struct iwl_sensitivity_data sensitivity_data; 950 struct iwl_chain_noise_data chain_noise_data; 951 __le16 sensitivity_tbl[HD_TABLE_SIZE]; 952 953 struct iwl_ht_info current_ht_config; 954 u8 last_phy_res[100]; 955 956 /* Rate scaling data */ 957 s8 data_retry_limit; 958 u8 retry_rate; 959 960 wait_queue_head_t wait_command_queue; 961 962 int activity_timer_active; 963 964 /* Rx and Tx DMA processing queues */ 965 struct iwl_rx_queue rxq; 966 struct iwl_tx_queue txq[IWL_MAX_NUM_QUEUES]; 967 unsigned long txq_ctx_active_msk; 968 struct iwl_dma_ptr kw; /* keep warm address */ 969 struct iwl_dma_ptr scd_bc_tbls; 970 971 u32 scd_base_addr; /* scheduler sram base address */ 972 973 unsigned long status; 974 975 int last_rx_rssi; /* From Rx packet statistics */ 976 int last_rx_noise; /* From beacon statistics */ 977 978 /* counts mgmt, ctl, and data packets */ 979 struct traffic_stats { 980 u32 cnt; 981 u64 bytes; 982 } tx_stats[3], rx_stats[3]; 983 984 struct iwl_power_mgr power_data; 985 986 struct iwl_notif_statistics statistics; 987 unsigned long last_statistics_time; 988 989 /* context information */ 990 u16 rates_mask; 991 992 u32 power_mode; 993 u8 bssid[ETH_ALEN]; 994 u16 rts_threshold; 995 u8 mac_addr[ETH_ALEN]; 996 997 /*station table variables */ 998 spinlock_t sta_lock; 999 int num_stations; 1000 struct iwl_station_entry stations[IWL_STATION_COUNT]; 1001 struct iwl_wep_key wep_keys[WEP_KEYS_MAX]; 1002 u8 default_wep_key; 1003 u8 key_mapping_key; 1004 unsigned long ucode_key_table; 1005 1006 /* Indication if ieee80211_ops->open has been called */ 1007 u8 is_open; 1008 1009 u8 mac80211_registered; 1010 1011 /* Rx'd packet timing information */ 1012 u32 last_beacon_time; 1013 u64 last_tsf; 1014 1015 /* eeprom */ 1016 u8 *eeprom; 1017 struct iwl_eeprom_calib_info *calib_info; 1018 1019 enum nl80211_iftype iw_mode; 1020 1021 struct sk_buff *ibss_beacon; 1022 1023 /* Last Rx'd beacon timestamp */ 1024 u64 timestamp; 1025 u16 beacon_int; 1026 struct ieee80211_vif *vif; 1027 1028 /*Added for 3945 */ 1029 void *shared_virt; 1030 dma_addr_t shared_phys; 1031 /*End*/ 1032 struct iwl_hw_params hw_params; 1033 1034 1035 /* Current association information needed to configure the 1036 * hardware */ 1037 u16 assoc_id; 1038 u16 assoc_capability; 1039 1040 struct iwl_qos_info qos_data; 1041 1042 struct workqueue_struct *workqueue; 1043 1044 struct work_struct up; 1045 struct work_struct restart; 1046 struct work_struct calibrated_work; 1047 struct work_struct scan_completed; 1048 struct work_struct rx_replenish; 1049 struct work_struct rf_kill; 1050 struct work_struct abort_scan; 1051 struct work_struct update_link_led; 1052 struct work_struct auth_work; 1053 struct work_struct report_work; 1054 struct work_struct request_scan; 1055 struct work_struct beacon_update; 1056 1057 struct tasklet_struct irq_tasklet; 1058 1059 struct delayed_work set_power_save; 1060 struct delayed_work init_alive_start; 1061 struct delayed_work alive_start; 1062 struct delayed_work scan_check; 1063 1064 /*For 3945 only*/ 1065 struct delayed_work thermal_periodic; 1066 struct delayed_work rfkill_poll; 1067 1068 /* TX Power */ 1069 s8 tx_power_user_lmt; 1070 s8 tx_power_channel_lmt; 1071 1072 1073#ifdef CONFIG_IWLWIFI_DEBUG 1074 /* debugging info */ 1075 u32 debug_level; 1076 u32 framecnt_to_us; 1077 atomic_t restrict_refcnt; 1078#ifdef CONFIG_IWLWIFI_DEBUGFS 1079 /* debugfs */ 1080 struct iwl_debugfs *dbgfs; 1081#endif /* CONFIG_IWLWIFI_DEBUGFS */ 1082#endif /* CONFIG_IWLWIFI_DEBUG */ 1083 1084 struct work_struct txpower_work; 1085 u32 disable_sens_cal; 1086 u32 disable_chain_noise_cal; 1087 u32 disable_tx_power_cal; 1088 struct work_struct run_time_calib_work; 1089 struct timer_list statistics_periodic; 1090 1091 /*For 3945*/ 1092#define IWL_DEFAULT_TX_POWER 0x0F 1093 1094 struct iwl3945_notif_statistics statistics_39; 1095 1096 struct iwl3945_station_entry stations_39[IWL_STATION_COUNT]; 1097 1098 u32 sta_supp_rates; 1099}; /*iwl_priv */ 1100 1101static inline void iwl_txq_ctx_activate(struct iwl_priv *priv, int txq_id) 1102{ 1103 set_bit(txq_id, &priv->txq_ctx_active_msk); 1104} 1105 1106static inline void iwl_txq_ctx_deactivate(struct iwl_priv *priv, int txq_id) 1107{ 1108 clear_bit(txq_id, &priv->txq_ctx_active_msk); 1109} 1110 1111#ifdef CONFIG_IWLWIFI_DEBUG 1112const char *iwl_get_tx_fail_reason(u32 status); 1113#else 1114static inline const char *iwl_get_tx_fail_reason(u32 status) { return ""; } 1115#endif 1116 1117 1118static inline struct ieee80211_hdr *iwl_tx_queue_get_hdr(struct iwl_priv *priv, 1119 int txq_id, int idx) 1120{ 1121 if (priv->txq[txq_id].txb[idx].skb[0]) 1122 return (struct ieee80211_hdr *)priv->txq[txq_id]. 1123 txb[idx].skb[0]->data; 1124 return NULL; 1125} 1126 1127 1128static inline int iwl_is_associated(struct iwl_priv *priv) 1129{ 1130 return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0; 1131} 1132 1133static inline int is_channel_valid(const struct iwl_channel_info *ch_info) 1134{ 1135 if (ch_info == NULL) 1136 return 0; 1137 return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0; 1138} 1139 1140static inline int is_channel_radar(const struct iwl_channel_info *ch_info) 1141{ 1142 return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0; 1143} 1144 1145static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info) 1146{ 1147 return ch_info->band == IEEE80211_BAND_5GHZ; 1148} 1149 1150static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info) 1151{ 1152 return ch_info->band == IEEE80211_BAND_2GHZ; 1153} 1154 1155static inline int is_channel_passive(const struct iwl_channel_info *ch) 1156{ 1157 return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0; 1158} 1159 1160static inline int is_channel_ibss(const struct iwl_channel_info *ch) 1161{ 1162 return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0; 1163} 1164 1165#endif /* __iwl_dev_h__ */ 1166