iwl-dev.h revision d9fe60dea7779d412b34679f1177c5ca1940ea8d
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 dma_addr; 93 struct sk_buff *skb; 94 struct list_head list; 95}; 96 97/* 98 * Generic queue structure 99 * 100 * Contains common data for Rx and Tx queues 101 */ 102struct iwl_queue { 103 int n_bd; /* number of BDs in this queue */ 104 int write_ptr; /* 1-st empty entry (index) host_w*/ 105 int read_ptr; /* last used entry (index) host_r*/ 106 dma_addr_t dma_addr; /* physical addr for BD's */ 107 int n_window; /* safe queue window */ 108 u32 id; 109 int low_mark; /* low watermark, resume queue if free 110 * space more than this */ 111 int high_mark; /* high watermark, stop queue if free 112 * space less than this */ 113} __attribute__ ((packed)); 114 115#define MAX_NUM_OF_TBS (20) 116 117/* One for each TFD */ 118struct iwl_tx_info { 119 struct sk_buff *skb[MAX_NUM_OF_TBS]; 120}; 121 122/** 123 * struct iwl_tx_queue - Tx Queue for DMA 124 * @q: generic Rx/Tx queue descriptor 125 * @bd: base of circular buffer of TFDs 126 * @cmd: array of command/Tx buffers 127 * @dma_addr_cmd: physical address of cmd/tx buffer array 128 * @txb: array of per-TFD driver data 129 * @need_update: indicates need to update read/write index 130 * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled 131 * 132 * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame 133 * descriptors) and required locking structures. 134 */ 135struct iwl_tx_queue { 136 struct iwl_queue q; 137 struct iwl_tfd_frame *bd; 138 struct iwl_cmd *cmd[TFD_TX_CMD_SLOTS]; 139 struct iwl_tx_info *txb; 140 int need_update; 141 int sched_retry; 142 int active; 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; 255 256} __attribute__ ((packed)); 257 258#define IWL_CMD_MAX_PAYLOAD 320 259 260/** 261 * struct iwl_cmd 262 * 263 * For allocation of the command and tx queues, this establishes the overall 264 * size of the largest command we send to uCode, except for a scan command 265 * (which is relatively huge; space is allocated separately). 266 */ 267struct iwl_cmd { 268 struct iwl_cmd_meta meta; /* driver data */ 269 struct iwl_cmd_header hdr; /* uCode API */ 270 union { 271 struct iwl_addsta_cmd addsta; 272 struct iwl_led_cmd led; 273 u32 flags; 274 u8 val8; 275 u16 val16; 276 u32 val32; 277 struct iwl4965_bt_cmd bt; 278 struct iwl_powertable_cmd powertable; 279 struct iwl_qosparam_cmd qosparam; 280 struct iwl_tx_cmd tx; 281 struct iwl4965_rxon_assoc_cmd rxon_assoc; 282 struct iwl_rem_sta_cmd rm_sta; 283 u8 *indirect; 284 u8 payload[IWL_CMD_MAX_PAYLOAD]; 285 } __attribute__ ((packed)) cmd; 286} __attribute__ ((packed)); 287 288struct iwl_host_cmd { 289 u8 id; 290 u16 len; 291 struct iwl_cmd_meta meta; 292 const void *data; 293}; 294 295#define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_cmd) - \ 296 sizeof(struct iwl_cmd_meta)) 297 298/* 299 * RX related structures and functions 300 */ 301#define RX_FREE_BUFFERS 64 302#define RX_LOW_WATERMARK 8 303 304#define SUP_RATE_11A_MAX_NUM_CHANNELS 8 305#define SUP_RATE_11B_MAX_NUM_CHANNELS 4 306#define SUP_RATE_11G_MAX_NUM_CHANNELS 12 307 308/** 309 * struct iwl_rx_queue - Rx queue 310 * @processed: Internal index to last handled Rx packet 311 * @read: Shared index to newest available Rx buffer 312 * @write: Shared index to oldest written Rx packet 313 * @free_count: Number of pre-allocated buffers in rx_free 314 * @rx_free: list of free SKBs for use 315 * @rx_used: List of Rx buffers with no SKB 316 * @need_update: flag to indicate we need to update read/write index 317 * 318 * NOTE: rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers 319 */ 320struct iwl_rx_queue { 321 __le32 *bd; 322 dma_addr_t dma_addr; 323 struct iwl_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS]; 324 struct iwl_rx_mem_buffer *queue[RX_QUEUE_SIZE]; 325 u32 processed; 326 u32 read; 327 u32 write; 328 u32 free_count; 329 struct list_head rx_free; 330 struct list_head rx_used; 331 int need_update; 332 spinlock_t lock; 333}; 334 335#define IWL_SUPPORTED_RATES_IE_LEN 8 336 337#define SCAN_INTERVAL 100 338 339#define MAX_A_CHANNELS 252 340#define MIN_A_CHANNELS 7 341 342#define MAX_B_CHANNELS 14 343#define MIN_B_CHANNELS 1 344 345#define MAX_TID_COUNT 9 346 347#define IWL_INVALID_RATE 0xFF 348#define IWL_INVALID_VALUE -1 349 350/** 351 * struct iwl_ht_agg -- aggregation status while waiting for block-ack 352 * @txq_id: Tx queue used for Tx attempt 353 * @frame_count: # frames attempted by Tx command 354 * @wait_for_ba: Expect block-ack before next Tx reply 355 * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window 356 * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window 357 * @bitmap1: High order, one bit for each frame pending ACK in Tx window 358 * @rate_n_flags: Rate at which Tx was attempted 359 * 360 * If REPLY_TX indicates that aggregation was attempted, driver must wait 361 * for block ack (REPLY_COMPRESSED_BA). This struct stores tx reply info 362 * until block ack arrives. 363 */ 364struct iwl_ht_agg { 365 u16 txq_id; 366 u16 frame_count; 367 u16 wait_for_ba; 368 u16 start_idx; 369 u64 bitmap; 370 u32 rate_n_flags; 371#define IWL_AGG_OFF 0 372#define IWL_AGG_ON 1 373#define IWL_EMPTYING_HW_QUEUE_ADDBA 2 374#define IWL_EMPTYING_HW_QUEUE_DELBA 3 375 u8 state; 376}; 377 378 379struct iwl_tid_data { 380 u16 seq_number; 381 u16 tfds_in_queue; 382 struct iwl_ht_agg agg; 383}; 384 385struct iwl_hw_key { 386 enum ieee80211_key_alg alg; 387 int keylen; 388 u8 keyidx; 389 u8 key[32]; 390}; 391 392union iwl4965_ht_rate_supp { 393 u16 rates; 394 struct { 395 u8 siso_rate; 396 u8 mimo_rate; 397 }; 398}; 399 400#define CFG_HT_RX_AMPDU_FACTOR_DEF (0x3) 401#define CFG_HT_MPDU_DENSITY_2USEC (0x5) 402#define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_2USEC 403 404struct iwl_ht_info { 405 /* self configuration data */ 406 u8 is_ht; 407 u8 supported_chan_width; 408 u8 sm_ps; 409 u8 is_green_field; 410 u8 sgf; /* HT_SHORT_GI_* short guard interval */ 411 u8 max_amsdu_size; 412 u8 ampdu_factor; 413 u8 mpdu_density; 414 struct ieee80211_mcs_info mcs; 415 /* BSS related data */ 416 u8 control_channel; 417 u8 extension_chan_offset; 418 u8 tx_chan_width; 419 u8 ht_protection; 420 u8 non_GF_STA_present; 421}; 422 423union iwl_qos_capabity { 424 struct { 425 u8 edca_count:4; /* bit 0-3 */ 426 u8 q_ack:1; /* bit 4 */ 427 u8 queue_request:1; /* bit 5 */ 428 u8 txop_request:1; /* bit 6 */ 429 u8 reserved:1; /* bit 7 */ 430 } q_AP; 431 struct { 432 u8 acvo_APSD:1; /* bit 0 */ 433 u8 acvi_APSD:1; /* bit 1 */ 434 u8 ac_bk_APSD:1; /* bit 2 */ 435 u8 ac_be_APSD:1; /* bit 3 */ 436 u8 q_ack:1; /* bit 4 */ 437 u8 max_len:2; /* bit 5-6 */ 438 u8 more_data_ack:1; /* bit 7 */ 439 } q_STA; 440 u8 val; 441}; 442 443/* QoS structures */ 444struct iwl_qos_info { 445 int qos_enable; 446 int qos_active; 447 union iwl_qos_capabity qos_cap; 448 struct iwl_qosparam_cmd def_qos_parm; 449}; 450 451#define STA_PS_STATUS_WAKE 0 452#define STA_PS_STATUS_SLEEP 1 453 454struct iwl_station_entry { 455 struct iwl_addsta_cmd sta; 456 struct iwl_tid_data tid[MAX_TID_COUNT]; 457 u8 used; 458 u8 ps_status; 459 struct iwl_hw_key keyinfo; 460}; 461 462/* one for each uCode image (inst/data, boot/init/runtime) */ 463struct fw_desc { 464 void *v_addr; /* access by driver */ 465 dma_addr_t p_addr; /* access by card's busmaster DMA */ 466 u32 len; /* bytes */ 467}; 468 469/* uCode file layout */ 470struct iwl_ucode { 471 __le32 ver; /* major/minor/subminor */ 472 __le32 inst_size; /* bytes of runtime instructions */ 473 __le32 data_size; /* bytes of runtime data */ 474 __le32 init_size; /* bytes of initialization instructions */ 475 __le32 init_data_size; /* bytes of initialization data */ 476 __le32 boot_size; /* bytes of bootstrap instructions */ 477 u8 data[0]; /* data in same order as "size" elements */ 478}; 479 480struct iwl4965_ibss_seq { 481 u8 mac[ETH_ALEN]; 482 u16 seq_num; 483 u16 frag_num; 484 unsigned long packet_time; 485 struct list_head list; 486}; 487 488struct iwl_sensitivity_ranges { 489 u16 min_nrg_cck; 490 u16 max_nrg_cck; 491 492 u16 nrg_th_cck; 493 u16 nrg_th_ofdm; 494 495 u16 auto_corr_min_ofdm; 496 u16 auto_corr_min_ofdm_mrc; 497 u16 auto_corr_min_ofdm_x1; 498 u16 auto_corr_min_ofdm_mrc_x1; 499 500 u16 auto_corr_max_ofdm; 501 u16 auto_corr_max_ofdm_mrc; 502 u16 auto_corr_max_ofdm_x1; 503 u16 auto_corr_max_ofdm_mrc_x1; 504 505 u16 auto_corr_max_cck; 506 u16 auto_corr_max_cck_mrc; 507 u16 auto_corr_min_cck; 508 u16 auto_corr_min_cck_mrc; 509}; 510 511 512#define IWL_FAT_CHANNEL_52 BIT(IEEE80211_BAND_5GHZ) 513 514/** 515 * struct iwl_hw_params 516 * @max_txq_num: Max # Tx queues supported 517 * @tx/rx_chains_num: Number of TX/RX chains 518 * @valid_tx/rx_ant: usable antennas 519 * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2) 520 * @max_rxq_log: Log-base-2 of max_rxq_size 521 * @rx_buf_size: Rx buffer size 522 * @max_stations: 523 * @bcast_sta_id: 524 * @fat_channel: is 40MHz width possible in band 2.4 525 * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ) 526 * @sw_crypto: 0 for hw, 1 for sw 527 * @max_xxx_size: for ucode uses 528 * @ct_kill_threshold: temperature threshold 529 * @calib_init_cfg: setup initial claibrations for the hw 530 * @struct iwl_sensitivity_ranges: range of sensitivity values 531 * @first_ampdu_q: first HW queue available for ampdu 532 */ 533struct iwl_hw_params { 534 u16 max_txq_num; 535 u8 tx_chains_num; 536 u8 rx_chains_num; 537 u8 valid_tx_ant; 538 u8 valid_rx_ant; 539 u16 max_rxq_size; 540 u16 max_rxq_log; 541 u32 rx_buf_size; 542 u32 max_pkt_size; 543 u8 max_stations; 544 u8 bcast_sta_id; 545 u8 fat_channel; 546 u8 sw_crypto; 547 u32 max_inst_size; 548 u32 max_data_size; 549 u32 max_bsm_size; 550 u32 ct_kill_threshold; /* value in hw-dependent units */ 551 u32 calib_init_cfg; 552 const struct iwl_sensitivity_ranges *sens; 553 u8 first_ampdu_q; 554}; 555 556#define HT_SHORT_GI_20MHZ (1 << 0) 557#define HT_SHORT_GI_40MHZ (1 << 1) 558 559 560#define IWL_RX_HDR(x) ((struct iwl4965_rx_frame_hdr *)(\ 561 x->u.rx_frame.stats.payload + \ 562 x->u.rx_frame.stats.phy_count)) 563#define IWL_RX_END(x) ((struct iwl4965_rx_frame_end *)(\ 564 IWL_RX_HDR(x)->payload + \ 565 le16_to_cpu(IWL_RX_HDR(x)->len))) 566#define IWL_RX_STATS(x) (&x->u.rx_frame.stats) 567#define IWL_RX_DATA(x) (IWL_RX_HDR(x)->payload) 568 569/****************************************************************************** 570 * 571 * Functions implemented in core module which are forward declared here 572 * for use by iwl-[4-5].c 573 * 574 * NOTE: The implementation of these functions are not hardware specific 575 * which is why they are in the core module files. 576 * 577 * Naming convention -- 578 * iwl_ <-- Is part of iwlwifi 579 * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX) 580 * iwl4965_bg_ <-- Called from work queue context 581 * iwl4965_mac_ <-- mac80211 callback 582 * 583 ****************************************************************************/ 584struct iwl_addsta_cmd; 585extern int iwl_send_add_sta(struct iwl_priv *priv, 586 struct iwl_addsta_cmd *sta, u8 flags); 587extern u8 iwl_add_station_flags(struct iwl_priv *priv, const u8 *addr, 588 int is_ap, u8 flags, struct ieee80211_sta_ht_cap *ht_info); 589extern void iwl4965_update_chain_flags(struct iwl_priv *priv); 590extern int iwl4965_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src); 591extern const u8 iwl_bcast_addr[ETH_ALEN]; 592extern int iwl_rxq_stop(struct iwl_priv *priv); 593extern void iwl_txq_ctx_stop(struct iwl_priv *priv); 594extern int iwl_queue_space(const struct iwl_queue *q); 595static inline int iwl_queue_used(const struct iwl_queue *q, int i) 596{ 597 return q->write_ptr > q->read_ptr ? 598 (i >= q->read_ptr && i < q->write_ptr) : 599 !(i < q->read_ptr && i >= q->write_ptr); 600} 601 602 603static inline u8 get_cmd_index(struct iwl_queue *q, u32 index, int is_huge) 604{ 605 /* This is for scan command, the big buffer at end of command array */ 606 if (is_huge) 607 return q->n_window; /* must be power of 2 */ 608 609 /* Otherwise, use normal size buffers */ 610 return index & (q->n_window - 1); 611} 612 613 614struct iwl_priv; 615 616 617/* Structures, enum, and defines specific to the 4965 */ 618 619#define IWL_KW_SIZE 0x1000 /*4k */ 620 621struct iwl_kw { 622 dma_addr_t dma_addr; 623 void *v_addr; 624 size_t size; 625}; 626 627#define IWL_CHANNEL_WIDTH_20MHZ 0 628#define IWL_CHANNEL_WIDTH_40MHZ 1 629 630#define IWL_OPERATION_MODE_AUTO 0 631#define IWL_OPERATION_MODE_HT_ONLY 1 632#define IWL_OPERATION_MODE_MIXED 2 633#define IWL_OPERATION_MODE_20MHZ 3 634 635#define IWL_TX_CRC_SIZE 4 636#define IWL_TX_DELIMITER_SIZE 4 637 638#define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000 639 640/* Sensitivity and chain noise calibration */ 641#define INTERFERENCE_DATA_AVAILABLE __constant_cpu_to_le32(1) 642#define INITIALIZATION_VALUE 0xFFFF 643#define CAL_NUM_OF_BEACONS 20 644#define MAXIMUM_ALLOWED_PATHLOSS 15 645 646#define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3 647 648#define MAX_FA_OFDM 50 649#define MIN_FA_OFDM 5 650#define MAX_FA_CCK 50 651#define MIN_FA_CCK 5 652 653#define AUTO_CORR_STEP_OFDM 1 654 655#define AUTO_CORR_STEP_CCK 3 656#define AUTO_CORR_MAX_TH_CCK 160 657 658#define NRG_DIFF 2 659#define NRG_STEP_CCK 2 660#define NRG_MARGIN 8 661#define MAX_NUMBER_CCK_NO_FA 100 662 663#define AUTO_CORR_CCK_MIN_VAL_DEF (125) 664 665#define CHAIN_A 0 666#define CHAIN_B 1 667#define CHAIN_C 2 668#define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4 669#define ALL_BAND_FILTER 0xFF00 670#define IN_BAND_FILTER 0xFF 671#define MIN_AVERAGE_NOISE_MAX_VALUE 0xFFFFFFFF 672 673#define NRG_NUM_PREV_STAT_L 20 674#define NUM_RX_CHAINS 3 675 676enum iwl4965_false_alarm_state { 677 IWL_FA_TOO_MANY = 0, 678 IWL_FA_TOO_FEW = 1, 679 IWL_FA_GOOD_RANGE = 2, 680}; 681 682enum iwl4965_chain_noise_state { 683 IWL_CHAIN_NOISE_ALIVE = 0, /* must be 0 */ 684 IWL_CHAIN_NOISE_ACCUMULATE, 685 IWL_CHAIN_NOISE_CALIBRATED, 686 IWL_CHAIN_NOISE_DONE, 687}; 688 689enum iwl4965_calib_enabled_state { 690 IWL_CALIB_DISABLED = 0, /* must be 0 */ 691 IWL_CALIB_ENABLED = 1, 692}; 693 694struct statistics_general_data { 695 u32 beacon_silence_rssi_a; 696 u32 beacon_silence_rssi_b; 697 u32 beacon_silence_rssi_c; 698 u32 beacon_energy_a; 699 u32 beacon_energy_b; 700 u32 beacon_energy_c; 701}; 702 703/* Opaque calibration results */ 704struct iwl_calib_result { 705 void *buf; 706 size_t buf_len; 707}; 708 709enum ucode_type { 710 UCODE_NONE = 0, 711 UCODE_INIT, 712 UCODE_RT 713}; 714 715/* Sensitivity calib data */ 716struct iwl_sensitivity_data { 717 u32 auto_corr_ofdm; 718 u32 auto_corr_ofdm_mrc; 719 u32 auto_corr_ofdm_x1; 720 u32 auto_corr_ofdm_mrc_x1; 721 u32 auto_corr_cck; 722 u32 auto_corr_cck_mrc; 723 724 u32 last_bad_plcp_cnt_ofdm; 725 u32 last_fa_cnt_ofdm; 726 u32 last_bad_plcp_cnt_cck; 727 u32 last_fa_cnt_cck; 728 729 u32 nrg_curr_state; 730 u32 nrg_prev_state; 731 u32 nrg_value[10]; 732 u8 nrg_silence_rssi[NRG_NUM_PREV_STAT_L]; 733 u32 nrg_silence_ref; 734 u32 nrg_energy_idx; 735 u32 nrg_silence_idx; 736 u32 nrg_th_cck; 737 s32 nrg_auto_corr_silence_diff; 738 u32 num_in_cck_no_fa; 739 u32 nrg_th_ofdm; 740}; 741 742/* Chain noise (differential Rx gain) calib data */ 743struct iwl_chain_noise_data { 744 u32 active_chains; 745 u32 chain_noise_a; 746 u32 chain_noise_b; 747 u32 chain_noise_c; 748 u32 chain_signal_a; 749 u32 chain_signal_b; 750 u32 chain_signal_c; 751 u16 beacon_count; 752 u8 disconn_array[NUM_RX_CHAINS]; 753 u8 delta_gain_code[NUM_RX_CHAINS]; 754 u8 radio_write; 755 u8 state; 756}; 757 758#define EEPROM_SEM_TIMEOUT 10 /* milliseconds */ 759#define EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */ 760 761 762enum { 763 MEASUREMENT_READY = (1 << 0), 764 MEASUREMENT_ACTIVE = (1 << 1), 765}; 766 767 768#define IWL_MAX_NUM_QUEUES 20 /* FIXME: do dynamic allocation */ 769#define IWL_CALIB_MAX 4 770 771struct iwl_priv { 772 773 /* ieee device used by generic ieee processing code */ 774 struct ieee80211_hw *hw; 775 struct ieee80211_channel *ieee_channels; 776 struct ieee80211_rate *ieee_rates; 777 struct iwl_cfg *cfg; 778 779 /* temporary frame storage list */ 780 struct list_head free_frames; 781 int frames_count; 782 783 enum ieee80211_band band; 784 int alloc_rxb_skb; 785 786 void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv, 787 struct iwl_rx_mem_buffer *rxb); 788 789 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS]; 790 791#ifdef CONFIG_IWLAGN_SPECTRUM_MEASUREMENT 792 /* spectrum measurement report caching */ 793 struct iwl4965_spectrum_notification measure_report; 794 u8 measurement_status; 795#endif 796 /* ucode beacon time */ 797 u32 ucode_beacon_time; 798 799 /* we allocate array of iwl4965_channel_info for NIC's valid channels. 800 * Access via channel # using indirect index array */ 801 struct iwl_channel_info *channel_info; /* channel info array */ 802 u8 channel_count; /* # of channels */ 803 804 /* each calibration channel group in the EEPROM has a derived 805 * clip setting for each rate. */ 806 const struct iwl4965_clip_group clip_groups[5]; 807 808 /* thermal calibration */ 809 s32 temperature; /* degrees Kelvin */ 810 s32 last_temperature; 811 812 /* init calibration results */ 813 struct iwl_calib_result calib_results[IWL_CALIB_MAX]; 814 815 /* Scan related variables */ 816 unsigned long last_scan_jiffies; 817 unsigned long next_scan_jiffies; 818 unsigned long scan_start; 819 unsigned long scan_pass_start; 820 unsigned long scan_start_tsf; 821 int scan_bands; 822 int one_direct_scan; 823 u8 direct_ssid_len; 824 u8 direct_ssid[IW_ESSID_MAX_SIZE]; 825 struct iwl_scan_cmd *scan; 826 u32 scan_tx_ant[IEEE80211_NUM_BANDS]; 827 828 /* spinlock */ 829 spinlock_t lock; /* protect general shared data */ 830 spinlock_t hcmd_lock; /* protect hcmd */ 831 struct mutex mutex; 832 833 /* basic pci-network driver stuff */ 834 struct pci_dev *pci_dev; 835 836 /* pci hardware address support */ 837 void __iomem *hw_base; 838 u32 hw_rev; 839 u32 hw_wa_rev; 840 u8 rev_id; 841 842 /* uCode images, save to reload in case of failure */ 843 struct fw_desc ucode_code; /* runtime inst */ 844 struct fw_desc ucode_data; /* runtime data original */ 845 struct fw_desc ucode_data_backup; /* runtime data save/restore */ 846 struct fw_desc ucode_init; /* initialization inst */ 847 struct fw_desc ucode_init_data; /* initialization data */ 848 struct fw_desc ucode_boot; /* bootstrap inst */ 849 enum ucode_type ucode_type; 850 u8 ucode_write_complete; /* the image write is complete */ 851 852 853 struct iwl_rxon_time_cmd rxon_timing; 854 855 /* We declare this const so it can only be 856 * changed via explicit cast within the 857 * routines that actually update the physical 858 * hardware */ 859 const struct iwl_rxon_cmd active_rxon; 860 struct iwl_rxon_cmd staging_rxon; 861 862 int error_recovering; 863 struct iwl_rxon_cmd recovery_rxon; 864 865 /* 1st responses from initialize and runtime uCode images. 866 * 4965's initialize alive response contains some calibration data. */ 867 struct iwl_init_alive_resp card_alive_init; 868 struct iwl_alive_resp card_alive; 869#ifdef CONFIG_IWLWIFI_RFKILL 870 struct rfkill *rfkill; 871#endif 872 873#ifdef CONFIG_IWLWIFI_LEDS 874 struct iwl_led led[IWL_LED_TRG_MAX]; 875 unsigned long last_blink_time; 876 u8 last_blink_rate; 877 u8 allow_blinking; 878 u64 led_tpt; 879#endif 880 881 u16 active_rate; 882 u16 active_rate_basic; 883 884 u8 assoc_station_added; 885 u8 use_ant_b_for_management_frame; /* Tx antenna selection */ 886 u8 start_calib; 887 struct iwl_sensitivity_data sensitivity_data; 888 struct iwl_chain_noise_data chain_noise_data; 889 __le16 sensitivity_tbl[HD_TABLE_SIZE]; 890 891 struct iwl_ht_info current_ht_config; 892 u8 last_phy_res[100]; 893 894 /* Rate scaling data */ 895 s8 data_retry_limit; 896 u8 retry_rate; 897 898 wait_queue_head_t wait_command_queue; 899 900 int activity_timer_active; 901 902 /* Rx and Tx DMA processing queues */ 903 struct iwl_rx_queue rxq; 904 struct iwl_tx_queue txq[IWL_MAX_NUM_QUEUES]; 905 unsigned long txq_ctx_active_msk; 906 struct iwl_kw kw; /* keep warm address */ 907 u32 scd_base_addr; /* scheduler sram base address */ 908 909 unsigned long status; 910 911 int last_rx_rssi; /* From Rx packet statisitics */ 912 int last_rx_noise; /* From beacon statistics */ 913 914 /* counts mgmt, ctl, and data packets */ 915 struct traffic_stats { 916 u32 cnt; 917 u64 bytes; 918 } tx_stats[3], rx_stats[3]; 919 920 struct iwl_power_mgr power_data; 921 922 struct iwl_notif_statistics statistics; 923 unsigned long last_statistics_time; 924 925 /* context information */ 926 u8 essid[IW_ESSID_MAX_SIZE]; 927 u8 essid_len; 928 u16 rates_mask; 929 930 u32 power_mode; 931 u32 antenna; 932 u8 bssid[ETH_ALEN]; 933 u16 rts_threshold; 934 u8 mac_addr[ETH_ALEN]; 935 936 /*station table variables */ 937 spinlock_t sta_lock; 938 int num_stations; 939 struct iwl_station_entry stations[IWL_STATION_COUNT]; 940 struct iwl_wep_key wep_keys[WEP_KEYS_MAX]; 941 u8 default_wep_key; 942 u8 key_mapping_key; 943 unsigned long ucode_key_table; 944 945 /* Indication if ieee80211_ops->open has been called */ 946 u8 is_open; 947 948 u8 mac80211_registered; 949 950 /* Rx'd packet timing information */ 951 u32 last_beacon_time; 952 u64 last_tsf; 953 954 /* eeprom */ 955 u8 *eeprom; 956 struct iwl_eeprom_calib_info *calib_info; 957 958 enum nl80211_iftype iw_mode; 959 960 struct sk_buff *ibss_beacon; 961 962 /* Last Rx'd beacon timestamp */ 963 u64 timestamp; 964 u16 beacon_int; 965 struct ieee80211_vif *vif; 966 967 struct iwl_hw_params hw_params; 968 /* driver/uCode shared Tx Byte Counts and Rx status */ 969 void *shared_virt; 970 int rb_closed_offset; 971 /* Physical Pointer to Tx Byte Counts and Rx status */ 972 dma_addr_t shared_phys; 973 974 /* Current association information needed to configure the 975 * hardware */ 976 u16 assoc_id; 977 u16 assoc_capability; 978 979 struct iwl_qos_info qos_data; 980 981 struct workqueue_struct *workqueue; 982 983 struct work_struct up; 984 struct work_struct restart; 985 struct work_struct calibrated_work; 986 struct work_struct scan_completed; 987 struct work_struct rx_replenish; 988 struct work_struct rf_kill; 989 struct work_struct abort_scan; 990 struct work_struct update_link_led; 991 struct work_struct auth_work; 992 struct work_struct report_work; 993 struct work_struct request_scan; 994 struct work_struct beacon_update; 995 struct work_struct set_monitor; 996 997 struct tasklet_struct irq_tasklet; 998 999 struct delayed_work set_power_save; 1000 struct delayed_work init_alive_start; 1001 struct delayed_work alive_start; 1002 struct delayed_work scan_check; 1003 /* TX Power */ 1004 s8 tx_power_user_lmt; 1005 s8 tx_power_channel_lmt; 1006 1007#ifdef CONFIG_PM 1008 u32 pm_state[16]; 1009#endif 1010 1011#ifdef CONFIG_IWLWIFI_DEBUG 1012 /* debugging info */ 1013 u32 debug_level; 1014 u32 framecnt_to_us; 1015 atomic_t restrict_refcnt; 1016#ifdef CONFIG_IWLWIFI_DEBUGFS 1017 /* debugfs */ 1018 struct iwl_debugfs *dbgfs; 1019#endif /* CONFIG_IWLWIFI_DEBUGFS */ 1020#endif /* CONFIG_IWLWIFI_DEBUG */ 1021 1022 struct work_struct txpower_work; 1023 u32 disable_sens_cal; 1024 u32 disable_chain_noise_cal; 1025 u32 disable_tx_power_cal; 1026 struct work_struct run_time_calib_work; 1027 struct timer_list statistics_periodic; 1028}; /*iwl_priv */ 1029 1030static inline void iwl_txq_ctx_activate(struct iwl_priv *priv, int txq_id) 1031{ 1032 set_bit(txq_id, &priv->txq_ctx_active_msk); 1033} 1034 1035static inline void iwl_txq_ctx_deactivate(struct iwl_priv *priv, int txq_id) 1036{ 1037 clear_bit(txq_id, &priv->txq_ctx_active_msk); 1038} 1039 1040#ifdef CONFIG_IWLWIFI_DEBUG 1041const char *iwl_get_tx_fail_reason(u32 status); 1042#else 1043static inline const char *iwl_get_tx_fail_reason(u32 status) { return ""; } 1044#endif 1045 1046 1047static inline struct ieee80211_hdr *iwl_tx_queue_get_hdr(struct iwl_priv *priv, 1048 int txq_id, int idx) 1049{ 1050 if (priv->txq[txq_id].txb[idx].skb[0]) 1051 return (struct ieee80211_hdr *)priv->txq[txq_id]. 1052 txb[idx].skb[0]->data; 1053 return NULL; 1054} 1055 1056 1057static inline int iwl_is_associated(struct iwl_priv *priv) 1058{ 1059 return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0; 1060} 1061 1062static inline int is_channel_valid(const struct iwl_channel_info *ch_info) 1063{ 1064 if (ch_info == NULL) 1065 return 0; 1066 return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0; 1067} 1068 1069static inline int is_channel_radar(const struct iwl_channel_info *ch_info) 1070{ 1071 return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0; 1072} 1073 1074static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info) 1075{ 1076 return ch_info->band == IEEE80211_BAND_5GHZ; 1077} 1078 1079static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info) 1080{ 1081 return ch_info->band == IEEE80211_BAND_2GHZ; 1082} 1083 1084static inline int is_channel_passive(const struct iwl_channel_info *ch) 1085{ 1086 return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0; 1087} 1088 1089static inline int is_channel_ibss(const struct iwl_channel_info *ch) 1090{ 1091 return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0; 1092} 1093 1094#ifdef CONFIG_IWLWIFI_DEBUG 1095static inline void iwl_print_hex_dump(struct iwl_priv *priv, int level, 1096 void *p, u32 len) 1097{ 1098 if (!(priv->debug_level & level)) 1099 return; 1100 1101 print_hex_dump(KERN_DEBUG, "iwl data: ", DUMP_PREFIX_OFFSET, 16, 1, 1102 p, len, 1); 1103} 1104#else 1105static inline void iwl_print_hex_dump(struct iwl_priv *priv, int level, 1106 void *p, u32 len) 1107{ 1108} 1109#endif 1110 1111extern const struct iwl_channel_info *iwl_get_channel_info( 1112 const struct iwl_priv *priv, enum ieee80211_band band, u16 channel); 1113 1114/* Requires full declaration of iwl_priv before including */ 1115 1116#endif /* __iwl_dev_h__ */ 1117