iwl-dev.h revision 6ab33d51713d6d60c7677c0d020910a8cb37e513
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-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#define DRV_NAME "iwlagn" 40#include "iwl-rfkill.h" 41#include "iwl-eeprom.h" 42#include "iwl-4965-hw.h" 43#include "iwl-csr.h" 44#include "iwl-prph.h" 45#include "iwl-debug.h" 46#include "iwl-led.h" 47#include "iwl-power.h" 48#include "iwl-agn-rs.h" 49 50/* configuration for the iwl4965 */ 51extern struct iwl_cfg iwl4965_agn_cfg; 52extern struct iwl_cfg iwl5300_agn_cfg; 53extern struct iwl_cfg iwl5100_agn_cfg; 54extern struct iwl_cfg iwl5350_agn_cfg; 55extern struct iwl_cfg iwl5100_bg_cfg; 56extern struct iwl_cfg iwl5100_abg_cfg; 57 58/* CT-KILL constants */ 59#define CT_KILL_THRESHOLD 110 /* in Celsius */ 60 61/* Default noise level to report when noise measurement is not available. 62 * This may be because we're: 63 * 1) Not associated (4965, no beacon statistics being sent to driver) 64 * 2) Scanning (noise measurement does not apply to associated channel) 65 * 3) Receiving CCK (3945 delivers noise info only for OFDM frames) 66 * Use default noise value of -127 ... this is below the range of measurable 67 * Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user. 68 * Also, -127 works better than 0 when averaging frames with/without 69 * noise info (e.g. averaging might be done in app); measured dBm values are 70 * always negative ... using a negative value as the default keeps all 71 * averages within an s8's (used in some apps) range of negative values. */ 72#define IWL_NOISE_MEAS_NOT_AVAILABLE (-127) 73 74/* 75 * RTS threshold here is total size [2347] minus 4 FCS bytes 76 * Per spec: 77 * a value of 0 means RTS on all data/management packets 78 * a value > max MSDU size means no RTS 79 * else RTS for data/management frames where MPDU is larger 80 * than RTS value. 81 */ 82#define DEFAULT_RTS_THRESHOLD 2347U 83#define MIN_RTS_THRESHOLD 0U 84#define MAX_RTS_THRESHOLD 2347U 85#define MAX_MSDU_SIZE 2304U 86#define MAX_MPDU_SIZE 2346U 87#define DEFAULT_BEACON_INTERVAL 100U 88#define DEFAULT_SHORT_RETRY_LIMIT 7U 89#define DEFAULT_LONG_RETRY_LIMIT 4U 90 91struct iwl_rx_mem_buffer { 92 dma_addr_t real_dma_addr; 93 dma_addr_t aligned_dma_addr; 94 struct sk_buff *skb; 95 struct list_head list; 96}; 97 98/* 99 * Generic queue structure 100 * 101 * Contains common data for Rx and Tx queues 102 */ 103struct iwl_queue { 104 int n_bd; /* number of BDs in this queue */ 105 int write_ptr; /* 1-st empty entry (index) host_w*/ 106 int read_ptr; /* last used entry (index) host_r*/ 107 dma_addr_t dma_addr; /* physical addr for BD's */ 108 int n_window; /* safe queue window */ 109 u32 id; 110 int low_mark; /* low watermark, resume queue if free 111 * space more than this */ 112 int high_mark; /* high watermark, stop queue if free 113 * space less than this */ 114} __attribute__ ((packed)); 115 116/* One for each TFD */ 117struct iwl_tx_info { 118 struct sk_buff *skb[IWL_NUM_OF_TBS - 1]; 119}; 120 121/** 122 * struct iwl_tx_queue - Tx Queue for DMA 123 * @q: generic Rx/Tx queue descriptor 124 * @bd: base of circular buffer of TFDs 125 * @cmd: array of command/Tx buffers 126 * @dma_addr_cmd: physical address of cmd/tx buffer array 127 * @txb: array of per-TFD driver data 128 * @need_update: indicates need to update read/write index 129 * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled 130 * 131 * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame 132 * descriptors) and required locking structures. 133 */ 134struct iwl_tx_queue { 135 struct iwl_queue q; 136 struct iwl_tfd *tfds; 137 struct iwl_cmd *cmd[TFD_TX_CMD_SLOTS]; 138 struct iwl_tx_info *txb; 139 u8 need_update; 140 u8 sched_retry; 141 u8 active; 142 u8 swq_id; 143}; 144 145#define IWL_NUM_SCAN_RATES (2) 146 147struct iwl4965_channel_tgd_info { 148 u8 type; 149 s8 max_power; 150}; 151 152struct iwl4965_channel_tgh_info { 153 s64 last_radar_time; 154}; 155 156/* 157 * One for each channel, holds all channel setup data 158 * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant 159 * with one another! 160 */ 161struct iwl_channel_info { 162 struct iwl4965_channel_tgd_info tgd; 163 struct iwl4965_channel_tgh_info tgh; 164 struct iwl_eeprom_channel eeprom; /* EEPROM regulatory limit */ 165 struct iwl_eeprom_channel fat_eeprom; /* EEPROM regulatory limit for 166 * FAT channel */ 167 168 u8 channel; /* channel number */ 169 u8 flags; /* flags copied from EEPROM */ 170 s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */ 171 s8 curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) limit */ 172 s8 min_power; /* always 0 */ 173 s8 scan_power; /* (dBm) regul. eeprom, direct scans, any rate */ 174 175 u8 group_index; /* 0-4, maps channel to group1/2/3/4/5 */ 176 u8 band_index; /* 0-4, maps channel to band1/2/3/4/5 */ 177 enum ieee80211_band band; 178 179 /* FAT channel info */ 180 s8 fat_max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */ 181 s8 fat_curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) */ 182 s8 fat_min_power; /* always 0 */ 183 s8 fat_scan_power; /* (dBm) eeprom, direct scans, any rate */ 184 u8 fat_flags; /* flags copied from EEPROM */ 185 u8 fat_extension_channel; /* HT_IE_EXT_CHANNEL_* */ 186}; 187 188struct iwl4965_clip_group { 189 /* maximum power level to prevent clipping for each rate, derived by 190 * us from this band's saturation power in EEPROM */ 191 const s8 clip_powers[IWL_MAX_RATES]; 192}; 193 194 195#define IWL_TX_FIFO_AC0 0 196#define IWL_TX_FIFO_AC1 1 197#define IWL_TX_FIFO_AC2 2 198#define IWL_TX_FIFO_AC3 3 199#define IWL_TX_FIFO_HCCA_1 5 200#define IWL_TX_FIFO_HCCA_2 6 201#define IWL_TX_FIFO_NONE 7 202 203/* Minimum number of queues. MAX_NUM is defined in hw specific files */ 204#define IWL_MIN_NUM_QUEUES 4 205 206/* Power management (not Tx power) structures */ 207 208enum iwl_pwr_src { 209 IWL_PWR_SRC_VMAIN, 210 IWL_PWR_SRC_VAUX, 211}; 212 213#define IEEE80211_DATA_LEN 2304 214#define IEEE80211_4ADDR_LEN 30 215#define IEEE80211_HLEN (IEEE80211_4ADDR_LEN) 216#define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN) 217 218struct iwl_frame { 219 union { 220 struct ieee80211_hdr frame; 221 struct iwl_tx_beacon_cmd beacon; 222 u8 raw[IEEE80211_FRAME_LEN]; 223 u8 cmd[360]; 224 } u; 225 struct list_head list; 226}; 227 228#define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4) 229#define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ) 230#define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4) 231 232enum { 233 /* CMD_SIZE_NORMAL = 0, */ 234 CMD_SIZE_HUGE = (1 << 0), 235 /* CMD_SYNC = 0, */ 236 CMD_ASYNC = (1 << 1), 237 /* CMD_NO_SKB = 0, */ 238 CMD_WANT_SKB = (1 << 2), 239}; 240 241struct iwl_cmd; 242struct iwl_priv; 243 244struct iwl_cmd_meta { 245 struct iwl_cmd_meta *source; 246 union { 247 struct sk_buff *skb; 248 int (*callback)(struct iwl_priv *priv, 249 struct iwl_cmd *cmd, struct sk_buff *skb); 250 } __attribute__ ((packed)) u; 251 252 /* The CMD_SIZE_HUGE flag bit indicates that the command 253 * structure is stored at the end of the shared queue memory. */ 254 u32 flags; 255 DECLARE_PCI_UNMAP_ADDR(mapping) 256 DECLARE_PCI_UNMAP_LEN(len) 257} __attribute__ ((packed)); 258 259#define IWL_CMD_MAX_PAYLOAD 320 260 261/** 262 * struct iwl_cmd 263 * 264 * For allocation of the command and tx queues, this establishes the overall 265 * size of the largest command we send to uCode, except for a scan command 266 * (which is relatively huge; space is allocated separately). 267 */ 268struct iwl_cmd { 269 struct iwl_cmd_meta meta; /* driver data */ 270 struct iwl_cmd_header hdr; /* uCode API */ 271 union { 272 u32 flags; 273 u8 val8; 274 u16 val16; 275 u32 val32; 276 struct iwl_tx_cmd tx; 277 u8 payload[IWL_CMD_MAX_PAYLOAD]; 278 } __attribute__ ((packed)) cmd; 279} __attribute__ ((packed)); 280 281 282struct iwl_host_cmd { 283 u8 id; 284 u16 len; 285 struct iwl_cmd_meta meta; 286 const void *data; 287}; 288 289#define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_cmd) - \ 290 sizeof(struct iwl_cmd_meta)) 291 292/* 293 * RX related structures and functions 294 */ 295#define RX_FREE_BUFFERS 64 296#define RX_LOW_WATERMARK 8 297 298#define SUP_RATE_11A_MAX_NUM_CHANNELS 8 299#define SUP_RATE_11B_MAX_NUM_CHANNELS 4 300#define SUP_RATE_11G_MAX_NUM_CHANNELS 12 301 302/** 303 * struct iwl_rx_queue - Rx queue 304 * @processed: Internal index to last handled Rx packet 305 * @read: Shared index to newest available Rx buffer 306 * @write: Shared index to oldest written Rx packet 307 * @free_count: Number of pre-allocated buffers in rx_free 308 * @rx_free: list of free SKBs for use 309 * @rx_used: List of Rx buffers with no SKB 310 * @need_update: flag to indicate we need to update read/write index 311 * 312 * NOTE: rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers 313 */ 314struct iwl_rx_queue { 315 __le32 *bd; 316 dma_addr_t dma_addr; 317 struct iwl_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS]; 318 struct iwl_rx_mem_buffer *queue[RX_QUEUE_SIZE]; 319 u32 processed; 320 u32 read; 321 u32 write; 322 u32 free_count; 323 struct list_head rx_free; 324 struct list_head rx_used; 325 int need_update; 326 spinlock_t lock; 327}; 328 329#define IWL_SUPPORTED_RATES_IE_LEN 8 330 331#define SCAN_INTERVAL 100 332 333#define MAX_A_CHANNELS 252 334#define MIN_A_CHANNELS 7 335 336#define MAX_B_CHANNELS 14 337#define MIN_B_CHANNELS 1 338 339#define MAX_TID_COUNT 9 340 341#define IWL_INVALID_RATE 0xFF 342#define IWL_INVALID_VALUE -1 343 344/** 345 * struct iwl_ht_agg -- aggregation status while waiting for block-ack 346 * @txq_id: Tx queue used for Tx attempt 347 * @frame_count: # frames attempted by Tx command 348 * @wait_for_ba: Expect block-ack before next Tx reply 349 * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window 350 * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window 351 * @bitmap1: High order, one bit for each frame pending ACK in Tx window 352 * @rate_n_flags: Rate at which Tx was attempted 353 * 354 * If REPLY_TX indicates that aggregation was attempted, driver must wait 355 * for block ack (REPLY_COMPRESSED_BA). This struct stores tx reply info 356 * until block ack arrives. 357 */ 358struct iwl_ht_agg { 359 u16 txq_id; 360 u16 frame_count; 361 u16 wait_for_ba; 362 u16 start_idx; 363 u64 bitmap; 364 u32 rate_n_flags; 365#define IWL_AGG_OFF 0 366#define IWL_AGG_ON 1 367#define IWL_EMPTYING_HW_QUEUE_ADDBA 2 368#define IWL_EMPTYING_HW_QUEUE_DELBA 3 369 u8 state; 370}; 371 372 373struct iwl_tid_data { 374 u16 seq_number; 375 u16 tfds_in_queue; 376 struct iwl_ht_agg agg; 377}; 378 379struct iwl_hw_key { 380 enum ieee80211_key_alg alg; 381 int keylen; 382 u8 keyidx; 383 u8 key[32]; 384}; 385 386union iwl4965_ht_rate_supp { 387 u16 rates; 388 struct { 389 u8 siso_rate; 390 u8 mimo_rate; 391 }; 392}; 393 394#define CFG_HT_RX_AMPDU_FACTOR_DEF (0x3) 395#define CFG_HT_MPDU_DENSITY_2USEC (0x5) 396#define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_2USEC 397 398struct iwl_ht_info { 399 /* self configuration data */ 400 u8 is_ht; 401 u8 supported_chan_width; 402 u8 sm_ps; 403 u8 is_green_field; 404 u8 sgf; /* HT_SHORT_GI_* short guard interval */ 405 u8 max_amsdu_size; 406 u8 ampdu_factor; 407 u8 mpdu_density; 408 struct ieee80211_mcs_info mcs; 409 /* BSS related data */ 410 u8 extension_chan_offset; 411 u8 tx_chan_width; 412 u8 ht_protection; 413 u8 non_GF_STA_present; 414}; 415 416union iwl_qos_capabity { 417 struct { 418 u8 edca_count:4; /* bit 0-3 */ 419 u8 q_ack:1; /* bit 4 */ 420 u8 queue_request:1; /* bit 5 */ 421 u8 txop_request:1; /* bit 6 */ 422 u8 reserved:1; /* bit 7 */ 423 } q_AP; 424 struct { 425 u8 acvo_APSD:1; /* bit 0 */ 426 u8 acvi_APSD:1; /* bit 1 */ 427 u8 ac_bk_APSD:1; /* bit 2 */ 428 u8 ac_be_APSD:1; /* bit 3 */ 429 u8 q_ack:1; /* bit 4 */ 430 u8 max_len:2; /* bit 5-6 */ 431 u8 more_data_ack:1; /* bit 7 */ 432 } q_STA; 433 u8 val; 434}; 435 436/* QoS structures */ 437struct iwl_qos_info { 438 int qos_enable; 439 int qos_active; 440 union iwl_qos_capabity qos_cap; 441 struct iwl_qosparam_cmd def_qos_parm; 442}; 443 444#define STA_PS_STATUS_WAKE 0 445#define STA_PS_STATUS_SLEEP 1 446 447struct iwl_station_entry { 448 struct iwl_addsta_cmd sta; 449 struct iwl_tid_data tid[MAX_TID_COUNT]; 450 u8 used; 451 u8 ps_status; 452 struct iwl_hw_key keyinfo; 453}; 454 455/* one for each uCode image (inst/data, boot/init/runtime) */ 456struct fw_desc { 457 void *v_addr; /* access by driver */ 458 dma_addr_t p_addr; /* access by card's busmaster DMA */ 459 u32 len; /* bytes */ 460}; 461 462/* uCode file layout */ 463struct iwl_ucode { 464 __le32 ver; /* major/minor/subminor */ 465 __le32 inst_size; /* bytes of runtime instructions */ 466 __le32 data_size; /* bytes of runtime data */ 467 __le32 init_size; /* bytes of initialization instructions */ 468 __le32 init_data_size; /* bytes of initialization data */ 469 __le32 boot_size; /* bytes of bootstrap instructions */ 470 u8 data[0]; /* data in same order as "size" elements */ 471}; 472 473struct iwl4965_ibss_seq { 474 u8 mac[ETH_ALEN]; 475 u16 seq_num; 476 u16 frag_num; 477 unsigned long packet_time; 478 struct list_head list; 479}; 480 481struct iwl_sensitivity_ranges { 482 u16 min_nrg_cck; 483 u16 max_nrg_cck; 484 485 u16 nrg_th_cck; 486 u16 nrg_th_ofdm; 487 488 u16 auto_corr_min_ofdm; 489 u16 auto_corr_min_ofdm_mrc; 490 u16 auto_corr_min_ofdm_x1; 491 u16 auto_corr_min_ofdm_mrc_x1; 492 493 u16 auto_corr_max_ofdm; 494 u16 auto_corr_max_ofdm_mrc; 495 u16 auto_corr_max_ofdm_x1; 496 u16 auto_corr_max_ofdm_mrc_x1; 497 498 u16 auto_corr_max_cck; 499 u16 auto_corr_max_cck_mrc; 500 u16 auto_corr_min_cck; 501 u16 auto_corr_min_cck_mrc; 502}; 503 504 505#define IWL_FAT_CHANNEL_52 BIT(IEEE80211_BAND_5GHZ) 506 507/** 508 * struct iwl_hw_params 509 * @max_txq_num: Max # Tx queues supported 510 * @tx/rx_chains_num: Number of TX/RX chains 511 * @valid_tx/rx_ant: usable antennas 512 * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2) 513 * @max_rxq_log: Log-base-2 of max_rxq_size 514 * @rx_buf_size: Rx buffer size 515 * @max_stations: 516 * @bcast_sta_id: 517 * @fat_channel: is 40MHz width possible in band 2.4 518 * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ) 519 * @sw_crypto: 0 for hw, 1 for sw 520 * @max_xxx_size: for ucode uses 521 * @ct_kill_threshold: temperature threshold 522 * @calib_init_cfg: setup initial calibrations for the hw 523 * @struct iwl_sensitivity_ranges: range of sensitivity values 524 */ 525struct iwl_hw_params { 526 u16 max_txq_num; 527 u8 tx_chains_num; 528 u8 rx_chains_num; 529 u8 valid_tx_ant; 530 u8 valid_rx_ant; 531 u16 max_rxq_size; 532 u16 max_rxq_log; 533 u32 rx_buf_size; 534 u32 max_pkt_size; 535 u8 max_stations; 536 u8 bcast_sta_id; 537 u8 fat_channel; 538 u8 sw_crypto; 539 u32 max_inst_size; 540 u32 max_data_size; 541 u32 max_bsm_size; 542 u32 ct_kill_threshold; /* value in hw-dependent units */ 543 u32 calib_init_cfg; 544 const struct iwl_sensitivity_ranges *sens; 545}; 546 547#define HT_SHORT_GI_20MHZ (1 << 0) 548#define HT_SHORT_GI_40MHZ (1 << 1) 549 550 551#define IWL_RX_HDR(x) ((struct iwl4965_rx_frame_hdr *)(\ 552 x->u.rx_frame.stats.payload + \ 553 x->u.rx_frame.stats.phy_count)) 554#define IWL_RX_END(x) ((struct iwl4965_rx_frame_end *)(\ 555 IWL_RX_HDR(x)->payload + \ 556 le16_to_cpu(IWL_RX_HDR(x)->len))) 557#define IWL_RX_STATS(x) (&x->u.rx_frame.stats) 558#define IWL_RX_DATA(x) (IWL_RX_HDR(x)->payload) 559 560/****************************************************************************** 561 * 562 * Functions implemented in core module which are forward declared here 563 * for use by iwl-[4-5].c 564 * 565 * NOTE: The implementation of these functions are not hardware specific 566 * which is why they are in the core module files. 567 * 568 * Naming convention -- 569 * iwl_ <-- Is part of iwlwifi 570 * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX) 571 * iwl4965_bg_ <-- Called from work queue context 572 * iwl4965_mac_ <-- mac80211 callback 573 * 574 ****************************************************************************/ 575struct iwl_addsta_cmd; 576extern int iwl_send_add_sta(struct iwl_priv *priv, 577 struct iwl_addsta_cmd *sta, u8 flags); 578extern u8 iwl_add_station_flags(struct iwl_priv *priv, const u8 *addr, 579 int is_ap, u8 flags, struct ieee80211_sta_ht_cap *ht_info); 580extern void iwl_update_chain_flags(struct iwl_priv *priv); 581extern int iwl_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src); 582extern const u8 iwl_bcast_addr[ETH_ALEN]; 583extern int iwl_rxq_stop(struct iwl_priv *priv); 584extern void iwl_txq_ctx_stop(struct iwl_priv *priv); 585extern int iwl_queue_space(const struct iwl_queue *q); 586static inline int iwl_queue_used(const struct iwl_queue *q, int i) 587{ 588 return q->write_ptr > q->read_ptr ? 589 (i >= q->read_ptr && i < q->write_ptr) : 590 !(i < q->read_ptr && i >= q->write_ptr); 591} 592 593 594static inline u8 get_cmd_index(struct iwl_queue *q, u32 index, int is_huge) 595{ 596 /* This is for scan command, the big buffer at end of command array */ 597 if (is_huge) 598 return q->n_window; /* must be power of 2 */ 599 600 /* Otherwise, use normal size buffers */ 601 return index & (q->n_window - 1); 602} 603 604 605struct iwl_priv; 606 607 608/* Structures, enum, and defines specific to the 4965 */ 609 610#define IWL_KW_SIZE 0x1000 /*4k */ 611 612struct iwl_kw { 613 dma_addr_t dma_addr; 614 void *v_addr; 615 size_t size; 616}; 617 618#define IWL_CHANNEL_WIDTH_20MHZ 0 619#define IWL_CHANNEL_WIDTH_40MHZ 1 620 621#define IWL_OPERATION_MODE_AUTO 0 622#define IWL_OPERATION_MODE_HT_ONLY 1 623#define IWL_OPERATION_MODE_MIXED 2 624#define IWL_OPERATION_MODE_20MHZ 3 625 626#define IWL_TX_CRC_SIZE 4 627#define IWL_TX_DELIMITER_SIZE 4 628 629#define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000 630 631/* Sensitivity and chain noise calibration */ 632#define INTERFERENCE_DATA_AVAILABLE __constant_cpu_to_le32(1) 633#define INITIALIZATION_VALUE 0xFFFF 634#define CAL_NUM_OF_BEACONS 20 635#define MAXIMUM_ALLOWED_PATHLOSS 15 636 637#define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3 638 639#define MAX_FA_OFDM 50 640#define MIN_FA_OFDM 5 641#define MAX_FA_CCK 50 642#define MIN_FA_CCK 5 643 644#define AUTO_CORR_STEP_OFDM 1 645 646#define AUTO_CORR_STEP_CCK 3 647#define AUTO_CORR_MAX_TH_CCK 160 648 649#define NRG_DIFF 2 650#define NRG_STEP_CCK 2 651#define NRG_MARGIN 8 652#define MAX_NUMBER_CCK_NO_FA 100 653 654#define AUTO_CORR_CCK_MIN_VAL_DEF (125) 655 656#define CHAIN_A 0 657#define CHAIN_B 1 658#define CHAIN_C 2 659#define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4 660#define ALL_BAND_FILTER 0xFF00 661#define IN_BAND_FILTER 0xFF 662#define MIN_AVERAGE_NOISE_MAX_VALUE 0xFFFFFFFF 663 664#define NRG_NUM_PREV_STAT_L 20 665#define NUM_RX_CHAINS 3 666 667enum iwl4965_false_alarm_state { 668 IWL_FA_TOO_MANY = 0, 669 IWL_FA_TOO_FEW = 1, 670 IWL_FA_GOOD_RANGE = 2, 671}; 672 673enum iwl4965_chain_noise_state { 674 IWL_CHAIN_NOISE_ALIVE = 0, /* must be 0 */ 675 IWL_CHAIN_NOISE_ACCUMULATE, 676 IWL_CHAIN_NOISE_CALIBRATED, 677 IWL_CHAIN_NOISE_DONE, 678}; 679 680enum iwl4965_calib_enabled_state { 681 IWL_CALIB_DISABLED = 0, /* must be 0 */ 682 IWL_CALIB_ENABLED = 1, 683}; 684 685struct statistics_general_data { 686 u32 beacon_silence_rssi_a; 687 u32 beacon_silence_rssi_b; 688 u32 beacon_silence_rssi_c; 689 u32 beacon_energy_a; 690 u32 beacon_energy_b; 691 u32 beacon_energy_c; 692}; 693 694 695/* 696 * enum iwl_calib 697 * defines the order in which results of initial calibrations 698 * should be sent to the runtime uCode 699 */ 700enum iwl_calib { 701 IWL_CALIB_XTAL, 702 IWL_CALIB_LO, 703 IWL_CALIB_TX_IQ, 704 IWL_CALIB_TX_IQ_PERD, 705 IWL_CALIB_MAX 706}; 707 708/* Opaque calibration results */ 709struct iwl_calib_result { 710 void *buf; 711 size_t buf_len; 712}; 713 714enum ucode_type { 715 UCODE_NONE = 0, 716 UCODE_INIT, 717 UCODE_RT 718}; 719 720/* Sensitivity calib data */ 721struct iwl_sensitivity_data { 722 u32 auto_corr_ofdm; 723 u32 auto_corr_ofdm_mrc; 724 u32 auto_corr_ofdm_x1; 725 u32 auto_corr_ofdm_mrc_x1; 726 u32 auto_corr_cck; 727 u32 auto_corr_cck_mrc; 728 729 u32 last_bad_plcp_cnt_ofdm; 730 u32 last_fa_cnt_ofdm; 731 u32 last_bad_plcp_cnt_cck; 732 u32 last_fa_cnt_cck; 733 734 u32 nrg_curr_state; 735 u32 nrg_prev_state; 736 u32 nrg_value[10]; 737 u8 nrg_silence_rssi[NRG_NUM_PREV_STAT_L]; 738 u32 nrg_silence_ref; 739 u32 nrg_energy_idx; 740 u32 nrg_silence_idx; 741 u32 nrg_th_cck; 742 s32 nrg_auto_corr_silence_diff; 743 u32 num_in_cck_no_fa; 744 u32 nrg_th_ofdm; 745}; 746 747/* Chain noise (differential Rx gain) calib data */ 748struct iwl_chain_noise_data { 749 u32 active_chains; 750 u32 chain_noise_a; 751 u32 chain_noise_b; 752 u32 chain_noise_c; 753 u32 chain_signal_a; 754 u32 chain_signal_b; 755 u32 chain_signal_c; 756 u16 beacon_count; 757 u8 disconn_array[NUM_RX_CHAINS]; 758 u8 delta_gain_code[NUM_RX_CHAINS]; 759 u8 radio_write; 760 u8 state; 761}; 762 763#define EEPROM_SEM_TIMEOUT 10 /* milliseconds */ 764#define EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */ 765 766 767enum { 768 MEASUREMENT_READY = (1 << 0), 769 MEASUREMENT_ACTIVE = (1 << 1), 770}; 771 772 773#define IWL_MAX_NUM_QUEUES 20 /* FIXME: do dynamic allocation */ 774 775struct iwl_priv { 776 777 /* ieee device used by generic ieee processing code */ 778 struct ieee80211_hw *hw; 779 struct ieee80211_channel *ieee_channels; 780 struct ieee80211_rate *ieee_rates; 781 struct iwl_cfg *cfg; 782 783 /* temporary frame storage list */ 784 struct list_head free_frames; 785 int frames_count; 786 787 enum ieee80211_band band; 788 int alloc_rxb_skb; 789 790 void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv, 791 struct iwl_rx_mem_buffer *rxb); 792 793 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS]; 794 795#ifdef CONFIG_IWLAGN_SPECTRUM_MEASUREMENT 796 /* spectrum measurement report caching */ 797 struct iwl4965_spectrum_notification measure_report; 798 u8 measurement_status; 799#endif 800 /* ucode beacon time */ 801 u32 ucode_beacon_time; 802 803 /* we allocate array of iwl4965_channel_info for NIC's valid channels. 804 * Access via channel # using indirect index array */ 805 struct iwl_channel_info *channel_info; /* channel info array */ 806 u8 channel_count; /* # of channels */ 807 808 /* each calibration channel group in the EEPROM has a derived 809 * clip setting for each rate. */ 810 const struct iwl4965_clip_group clip_groups[5]; 811 812 /* thermal calibration */ 813 s32 temperature; /* degrees Kelvin */ 814 s32 last_temperature; 815 816 /* init calibration results */ 817 struct iwl_calib_result calib_results[IWL_CALIB_MAX]; 818 819 /* Scan related variables */ 820 unsigned long last_scan_jiffies; 821 unsigned long next_scan_jiffies; 822 unsigned long scan_start; 823 unsigned long scan_pass_start; 824 unsigned long scan_start_tsf; 825 struct iwl_scan_cmd *scan; 826 int scan_bands; 827 int one_direct_scan; 828 u8 direct_ssid_len; 829 u8 direct_ssid[IW_ESSID_MAX_SIZE]; 830 u8 scan_tx_ant[IEEE80211_NUM_BANDS]; 831 u8 mgmt_tx_ant; 832 833 /* spinlock */ 834 spinlock_t lock; /* protect general shared data */ 835 spinlock_t hcmd_lock; /* protect hcmd */ 836 struct mutex mutex; 837 838 /* basic pci-network driver stuff */ 839 struct pci_dev *pci_dev; 840 841 /* pci hardware address support */ 842 void __iomem *hw_base; 843 u32 hw_rev; 844 u32 hw_wa_rev; 845 u8 rev_id; 846 847 /* uCode images, save to reload in case of failure */ 848 struct fw_desc ucode_code; /* runtime inst */ 849 struct fw_desc ucode_data; /* runtime data original */ 850 struct fw_desc ucode_data_backup; /* runtime data save/restore */ 851 struct fw_desc ucode_init; /* initialization inst */ 852 struct fw_desc ucode_init_data; /* initialization data */ 853 struct fw_desc ucode_boot; /* bootstrap inst */ 854 enum ucode_type ucode_type; 855 u8 ucode_write_complete; /* the image write is complete */ 856 857 858 struct iwl_rxon_time_cmd rxon_timing; 859 860 /* We declare this const so it can only be 861 * changed via explicit cast within the 862 * routines that actually update the physical 863 * hardware */ 864 const struct iwl_rxon_cmd active_rxon; 865 struct iwl_rxon_cmd staging_rxon; 866 867 int error_recovering; 868 struct iwl_rxon_cmd recovery_rxon; 869 870 /* 1st responses from initialize and runtime uCode images. 871 * 4965's initialize alive response contains some calibration data. */ 872 struct iwl_init_alive_resp card_alive_init; 873 struct iwl_alive_resp card_alive; 874#ifdef CONFIG_IWLWIFI_RFKILL 875 struct rfkill *rfkill; 876#endif 877 878#ifdef CONFIG_IWLWIFI_LEDS 879 struct iwl_led led[IWL_LED_TRG_MAX]; 880 unsigned long last_blink_time; 881 u8 last_blink_rate; 882 u8 allow_blinking; 883 u64 led_tpt; 884#endif 885 886 u16 active_rate; 887 u16 active_rate_basic; 888 889 u8 assoc_station_added; 890 u8 start_calib; 891 struct iwl_sensitivity_data sensitivity_data; 892 struct iwl_chain_noise_data chain_noise_data; 893 __le16 sensitivity_tbl[HD_TABLE_SIZE]; 894 895 struct iwl_ht_info current_ht_config; 896 u8 last_phy_res[100]; 897 898 /* Rate scaling data */ 899 s8 data_retry_limit; 900 u8 retry_rate; 901 902 wait_queue_head_t wait_command_queue; 903 904 int activity_timer_active; 905 906 /* Rx and Tx DMA processing queues */ 907 struct iwl_rx_queue rxq; 908 struct iwl_tx_queue txq[IWL_MAX_NUM_QUEUES]; 909 unsigned long txq_ctx_active_msk; 910 struct iwl_kw kw; /* keep warm address */ 911 u32 scd_base_addr; /* scheduler sram base address */ 912 913 unsigned long status; 914 915 int last_rx_rssi; /* From Rx packet statistics */ 916 int last_rx_noise; /* From beacon statistics */ 917 918 /* counts mgmt, ctl, and data packets */ 919 struct traffic_stats { 920 u32 cnt; 921 u64 bytes; 922 } tx_stats[3], rx_stats[3]; 923 924 struct iwl_power_mgr power_data; 925 926 struct iwl_notif_statistics statistics; 927 unsigned long last_statistics_time; 928 929 /* context information */ 930 u16 rates_mask; 931 932 u32 power_mode; 933 u32 antenna; 934 u8 bssid[ETH_ALEN]; 935 u16 rts_threshold; 936 u8 mac_addr[ETH_ALEN]; 937 938 /*station table variables */ 939 spinlock_t sta_lock; 940 int num_stations; 941 struct iwl_station_entry stations[IWL_STATION_COUNT]; 942 struct iwl_wep_key wep_keys[WEP_KEYS_MAX]; 943 u8 default_wep_key; 944 u8 key_mapping_key; 945 unsigned long ucode_key_table; 946 947 /* Indication if ieee80211_ops->open has been called */ 948 u8 is_open; 949 950 u8 mac80211_registered; 951 952 /* Rx'd packet timing information */ 953 u32 last_beacon_time; 954 u64 last_tsf; 955 956 /* eeprom */ 957 u8 *eeprom; 958 struct iwl_eeprom_calib_info *calib_info; 959 960 enum nl80211_iftype iw_mode; 961 962 struct sk_buff *ibss_beacon; 963 964 /* Last Rx'd beacon timestamp */ 965 u64 timestamp; 966 u16 beacon_int; 967 struct ieee80211_vif *vif; 968 969 struct iwl_hw_params hw_params; 970 /* driver/uCode shared Tx Byte Counts and Rx status */ 971 void *shared_virt; 972 int rb_closed_offset; 973 /* Physical Pointer to Tx Byte Counts and Rx status */ 974 dma_addr_t shared_phys; 975 976 /* Current association information needed to configure the 977 * hardware */ 978 u16 assoc_id; 979 u16 assoc_capability; 980 981 struct iwl_qos_info qos_data; 982 983 struct workqueue_struct *workqueue; 984 985 struct work_struct up; 986 struct work_struct restart; 987 struct work_struct calibrated_work; 988 struct work_struct scan_completed; 989 struct work_struct rx_replenish; 990 struct work_struct rf_kill; 991 struct work_struct abort_scan; 992 struct work_struct update_link_led; 993 struct work_struct auth_work; 994 struct work_struct report_work; 995 struct work_struct request_scan; 996 struct work_struct beacon_update; 997 struct work_struct set_monitor; 998 999 struct tasklet_struct irq_tasklet; 1000 1001 struct delayed_work set_power_save; 1002 struct delayed_work init_alive_start; 1003 struct delayed_work alive_start; 1004 struct delayed_work scan_check; 1005 /* TX Power */ 1006 s8 tx_power_user_lmt; 1007 s8 tx_power_channel_lmt; 1008 1009#ifdef CONFIG_PM 1010 u32 pm_state[16]; 1011#endif 1012 1013#ifdef CONFIG_IWLWIFI_DEBUG 1014 /* debugging info */ 1015 u32 debug_level; 1016 u32 framecnt_to_us; 1017 atomic_t restrict_refcnt; 1018#ifdef CONFIG_IWLWIFI_DEBUGFS 1019 /* debugfs */ 1020 struct iwl_debugfs *dbgfs; 1021#endif /* CONFIG_IWLWIFI_DEBUGFS */ 1022#endif /* CONFIG_IWLWIFI_DEBUG */ 1023 1024 struct work_struct txpower_work; 1025 u32 disable_sens_cal; 1026 u32 disable_chain_noise_cal; 1027 u32 disable_tx_power_cal; 1028 struct work_struct run_time_calib_work; 1029 struct timer_list statistics_periodic; 1030}; /*iwl_priv */ 1031 1032static inline void iwl_txq_ctx_activate(struct iwl_priv *priv, int txq_id) 1033{ 1034 set_bit(txq_id, &priv->txq_ctx_active_msk); 1035} 1036 1037static inline void iwl_txq_ctx_deactivate(struct iwl_priv *priv, int txq_id) 1038{ 1039 clear_bit(txq_id, &priv->txq_ctx_active_msk); 1040} 1041 1042#ifdef CONFIG_IWLWIFI_DEBUG 1043const char *iwl_get_tx_fail_reason(u32 status); 1044#else 1045static inline const char *iwl_get_tx_fail_reason(u32 status) { return ""; } 1046#endif 1047 1048 1049static inline struct ieee80211_hdr *iwl_tx_queue_get_hdr(struct iwl_priv *priv, 1050 int txq_id, int idx) 1051{ 1052 if (priv->txq[txq_id].txb[idx].skb[0]) 1053 return (struct ieee80211_hdr *)priv->txq[txq_id]. 1054 txb[idx].skb[0]->data; 1055 return NULL; 1056} 1057 1058 1059static inline int iwl_is_associated(struct iwl_priv *priv) 1060{ 1061 return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0; 1062} 1063 1064static inline int is_channel_valid(const struct iwl_channel_info *ch_info) 1065{ 1066 if (ch_info == NULL) 1067 return 0; 1068 return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0; 1069} 1070 1071static inline int is_channel_radar(const struct iwl_channel_info *ch_info) 1072{ 1073 return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0; 1074} 1075 1076static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info) 1077{ 1078 return ch_info->band == IEEE80211_BAND_5GHZ; 1079} 1080 1081static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info) 1082{ 1083 return ch_info->band == IEEE80211_BAND_2GHZ; 1084} 1085 1086static inline int is_channel_passive(const struct iwl_channel_info *ch) 1087{ 1088 return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0; 1089} 1090 1091static inline int is_channel_ibss(const struct iwl_channel_info *ch) 1092{ 1093 return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0; 1094} 1095 1096#ifdef CONFIG_IWLWIFI_DEBUG 1097static inline void iwl_print_hex_dump(struct iwl_priv *priv, int level, 1098 void *p, u32 len) 1099{ 1100 if (!(priv->debug_level & level)) 1101 return; 1102 1103 print_hex_dump(KERN_DEBUG, "iwl data: ", DUMP_PREFIX_OFFSET, 16, 1, 1104 p, len, 1); 1105} 1106#else 1107static inline void iwl_print_hex_dump(struct iwl_priv *priv, int level, 1108 void *p, u32 len) 1109{ 1110} 1111#endif 1112 1113extern const struct iwl_channel_info *iwl_get_channel_info( 1114 const struct iwl_priv *priv, enum ieee80211_band band, u16 channel); 1115 1116/* Requires full declaration of iwl_priv before including */ 1117 1118#endif /* __iwl_dev_h__ */ 1119