iwl-dev.h revision 0286cee0d2b6357e8e30d817bbce8ff166f358b5
1/****************************************************************************** 2 * 3 * Copyright(c) 2003 - 2011 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 */ 30 31#ifndef __iwl_dev_h__ 32#define __iwl_dev_h__ 33 34#include <linux/pci.h> /* for struct pci_device_id */ 35#include <linux/kernel.h> 36#include <linux/wait.h> 37#include <linux/leds.h> 38#include <net/ieee80211_radiotap.h> 39 40#include "iwl-eeprom.h" 41#include "iwl-csr.h" 42#include "iwl-prph.h" 43#include "iwl-fh.h" 44#include "iwl-debug.h" 45#include "iwl-agn-hw.h" 46#include "iwl-led.h" 47#include "iwl-power.h" 48#include "iwl-agn-rs.h" 49#include "iwl-agn-tt.h" 50 51#define DRV_NAME "iwlagn" 52 53struct iwl_tx_queue; 54 55/* CT-KILL constants */ 56#define CT_KILL_THRESHOLD_LEGACY 110 /* in Celsius */ 57#define CT_KILL_THRESHOLD 114 /* in Celsius */ 58#define CT_KILL_EXIT_THRESHOLD 95 /* in Celsius */ 59 60/* Default noise level to report when noise measurement is not available. 61 * This may be because we're: 62 * 1) Not associated (4965, no beacon statistics being sent to driver) 63 * 2) Scanning (noise measurement does not apply to associated channel) 64 * 3) Receiving CCK (3945 delivers noise info only for OFDM frames) 65 * Use default noise value of -127 ... this is below the range of measurable 66 * Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user. 67 * Also, -127 works better than 0 when averaging frames with/without 68 * noise info (e.g. averaging might be done in app); measured dBm values are 69 * always negative ... using a negative value as the default keeps all 70 * averages within an s8's (used in some apps) range of negative values. */ 71#define IWL_NOISE_MEAS_NOT_AVAILABLE (-127) 72 73/* 74 * RTS threshold here is total size [2347] minus 4 FCS bytes 75 * Per spec: 76 * a value of 0 means RTS on all data/management packets 77 * a value > max MSDU size means no RTS 78 * else RTS for data/management frames where MPDU is larger 79 * than RTS value. 80 */ 81#define DEFAULT_RTS_THRESHOLD 2347U 82#define MIN_RTS_THRESHOLD 0U 83#define MAX_RTS_THRESHOLD 2347U 84#define MAX_MSDU_SIZE 2304U 85#define MAX_MPDU_SIZE 2346U 86#define DEFAULT_BEACON_INTERVAL 200U 87#define DEFAULT_SHORT_RETRY_LIMIT 7U 88#define DEFAULT_LONG_RETRY_LIMIT 4U 89 90struct iwl_rx_mem_buffer { 91 dma_addr_t page_dma; 92 struct page *page; 93 struct list_head list; 94}; 95 96#define rxb_addr(r) page_address(r->page) 97 98/* defined below */ 99struct iwl_device_cmd; 100 101struct iwl_cmd_meta { 102 /* only for SYNC commands, iff the reply skb is wanted */ 103 struct iwl_host_cmd *source; 104 /* 105 * only for ASYNC commands 106 * (which is somewhat stupid -- look at iwl-sta.c for instance 107 * which duplicates a bunch of code because the callback isn't 108 * invoked for SYNC commands, if it were and its result passed 109 * through it would be simpler...) 110 */ 111 void (*callback)(struct iwl_priv *priv, 112 struct iwl_device_cmd *cmd, 113 struct iwl_rx_packet *pkt); 114 115 u32 flags; 116 117 DEFINE_DMA_UNMAP_ADDR(mapping); 118 DEFINE_DMA_UNMAP_LEN(len); 119}; 120 121/* 122 * Generic queue structure 123 * 124 * Contains common data for Rx and Tx queues. 125 * 126 * Note the difference between n_bd and n_window: the hardware 127 * always assumes 256 descriptors, so n_bd is always 256 (unless 128 * there might be HW changes in the future). For the normal TX 129 * queues, n_window, which is the size of the software queue data 130 * is also 256; however, for the command queue, n_window is only 131 * 32 since we don't need so many commands pending. Since the HW 132 * still uses 256 BDs for DMA though, n_bd stays 256. As a result, 133 * the software buffers (in the variables @meta, @txb in struct 134 * iwl_tx_queue) only have 32 entries, while the HW buffers (@tfds 135 * in the same struct) have 256. 136 * This means that we end up with the following: 137 * HW entries: | 0 | ... | N * 32 | ... | N * 32 + 31 | ... | 255 | 138 * SW entries: | 0 | ... | 31 | 139 * where N is a number between 0 and 7. This means that the SW 140 * data is a window overlayed over the HW queue. 141 */ 142struct iwl_queue { 143 int n_bd; /* number of BDs in this queue */ 144 int write_ptr; /* 1-st empty entry (index) host_w*/ 145 int read_ptr; /* last used entry (index) host_r*/ 146 /* use for monitoring and recovering the stuck queue */ 147 dma_addr_t dma_addr; /* physical addr for BD's */ 148 int n_window; /* safe queue window */ 149 u32 id; 150 int low_mark; /* low watermark, resume queue if free 151 * space more than this */ 152 int high_mark; /* high watermark, stop queue if free 153 * space less than this */ 154}; 155 156/* One for each TFD */ 157struct iwl_tx_info { 158 struct sk_buff *skb; 159 struct iwl_rxon_context *ctx; 160}; 161 162/** 163 * struct iwl_tx_queue - Tx Queue for DMA 164 * @q: generic Rx/Tx queue descriptor 165 * @bd: base of circular buffer of TFDs 166 * @cmd: array of command/TX buffer pointers 167 * @meta: array of meta data for each command/tx buffer 168 * @dma_addr_cmd: physical address of cmd/tx buffer array 169 * @txb: array of per-TFD driver data 170 * @time_stamp: time (in jiffies) of last read_ptr change 171 * @need_update: indicates need to update read/write index 172 * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled 173 * 174 * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame 175 * descriptors) and required locking structures. 176 */ 177#define TFD_TX_CMD_SLOTS 256 178#define TFD_CMD_SLOTS 32 179 180struct iwl_tx_queue { 181 struct iwl_queue q; 182 struct iwl_tfd *tfds; 183 struct iwl_device_cmd **cmd; 184 struct iwl_cmd_meta *meta; 185 struct iwl_tx_info *txb; 186 unsigned long time_stamp; 187 u8 need_update; 188 u8 sched_retry; 189 u8 active; 190 u8 swq_id; 191}; 192 193#define IWL_NUM_SCAN_RATES (2) 194 195/* 196 * One for each channel, holds all channel setup data 197 * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant 198 * with one another! 199 */ 200struct iwl_channel_info { 201 struct iwl_eeprom_channel eeprom; /* EEPROM regulatory limit */ 202 struct iwl_eeprom_channel ht40_eeprom; /* EEPROM regulatory limit for 203 * HT40 channel */ 204 205 u8 channel; /* channel number */ 206 u8 flags; /* flags copied from EEPROM */ 207 s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */ 208 s8 curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) limit */ 209 s8 min_power; /* always 0 */ 210 s8 scan_power; /* (dBm) regul. eeprom, direct scans, any rate */ 211 212 u8 group_index; /* 0-4, maps channel to group1/2/3/4/5 */ 213 u8 band_index; /* 0-4, maps channel to band1/2/3/4/5 */ 214 enum ieee80211_band band; 215 216 /* HT40 channel info */ 217 s8 ht40_max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */ 218 u8 ht40_flags; /* flags copied from EEPROM */ 219 u8 ht40_extension_channel; /* HT_IE_EXT_CHANNEL_* */ 220}; 221 222#define IWL_TX_FIFO_BK 0 /* shared */ 223#define IWL_TX_FIFO_BE 1 224#define IWL_TX_FIFO_VI 2 /* shared */ 225#define IWL_TX_FIFO_VO 3 226#define IWL_TX_FIFO_BK_IPAN IWL_TX_FIFO_BK 227#define IWL_TX_FIFO_BE_IPAN 4 228#define IWL_TX_FIFO_VI_IPAN IWL_TX_FIFO_VI 229#define IWL_TX_FIFO_VO_IPAN 5 230#define IWL_TX_FIFO_UNUSED -1 231 232/* Minimum number of queues. MAX_NUM is defined in hw specific files. 233 * Set the minimum to accommodate the 4 standard TX queues, 1 command 234 * queue, 2 (unused) HCCA queues, and 4 HT queues (one for each AC) */ 235#define IWL_MIN_NUM_QUEUES 10 236 237/* 238 * Command queue depends on iPAN support. 239 */ 240#define IWL_DEFAULT_CMD_QUEUE_NUM 4 241#define IWL_IPAN_CMD_QUEUE_NUM 9 242 243/* 244 * This queue number is required for proper operation 245 * because the ucode will stop/start the scheduler as 246 * required. 247 */ 248#define IWL_IPAN_MCAST_QUEUE 8 249 250#define IEEE80211_DATA_LEN 2304 251#define IEEE80211_4ADDR_LEN 30 252#define IEEE80211_HLEN (IEEE80211_4ADDR_LEN) 253#define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN) 254 255 256#define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4) 257#define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ) 258#define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4) 259 260enum { 261 CMD_SYNC = 0, 262 CMD_ASYNC = BIT(0), 263 CMD_WANT_SKB = BIT(1), 264 CMD_ON_DEMAND = BIT(2), 265}; 266 267#define DEF_CMD_PAYLOAD_SIZE 320 268 269/** 270 * struct iwl_device_cmd 271 * 272 * For allocation of the command and tx queues, this establishes the overall 273 * size of the largest command we send to uCode, except for commands that 274 * aren't fully copied and use other TFD space. 275 */ 276struct iwl_device_cmd { 277 struct iwl_cmd_header hdr; /* uCode API */ 278 union { 279 u32 flags; 280 u8 val8; 281 u16 val16; 282 u32 val32; 283 struct iwl_tx_cmd tx; 284 struct iwl6000_channel_switch_cmd chswitch; 285 u8 payload[DEF_CMD_PAYLOAD_SIZE]; 286 } __packed cmd; 287} __packed; 288 289#define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_device_cmd)) 290 291#define IWL_MAX_CMD_TFDS 2 292 293enum iwl_hcmd_dataflag { 294 IWL_HCMD_DFL_NOCOPY = BIT(0), 295}; 296 297/** 298 * struct iwl_host_cmd - Host command to the uCode 299 * @data: array of chunks that composes the data of the host command 300 * @reply_page: pointer to the page that holds the response to the host command 301 * @callback: 302 * @flags: can be CMD_* note CMD_WANT_SKB is incompatible withe CMD_ASYNC 303 * @len: array of the lenths of the chunks in data 304 * @dataflags: 305 * @id: id of the host command 306 */ 307struct iwl_host_cmd { 308 const void *data[IWL_MAX_CMD_TFDS]; 309 unsigned long reply_page; 310 void (*callback)(struct iwl_priv *priv, 311 struct iwl_device_cmd *cmd, 312 struct iwl_rx_packet *pkt); 313 u32 flags; 314 u16 len[IWL_MAX_CMD_TFDS]; 315 u8 dataflags[IWL_MAX_CMD_TFDS]; 316 u8 id; 317}; 318 319#define SUP_RATE_11A_MAX_NUM_CHANNELS 8 320#define SUP_RATE_11B_MAX_NUM_CHANNELS 4 321#define SUP_RATE_11G_MAX_NUM_CHANNELS 12 322 323/** 324 * struct iwl_rx_queue - Rx queue 325 * @bd: driver's pointer to buffer of receive buffer descriptors (rbd) 326 * @bd_dma: bus address of buffer of receive buffer descriptors (rbd) 327 * @read: Shared index to newest available Rx buffer 328 * @write: Shared index to oldest written Rx packet 329 * @free_count: Number of pre-allocated buffers in rx_free 330 * @rx_free: list of free SKBs for use 331 * @rx_used: List of Rx buffers with no SKB 332 * @need_update: flag to indicate we need to update read/write index 333 * @rb_stts: driver's pointer to receive buffer status 334 * @rb_stts_dma: bus address of receive buffer status 335 * 336 * NOTE: rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers 337 */ 338struct iwl_rx_queue { 339 __le32 *bd; 340 dma_addr_t bd_dma; 341 struct iwl_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS]; 342 struct iwl_rx_mem_buffer *queue[RX_QUEUE_SIZE]; 343 u32 read; 344 u32 write; 345 u32 free_count; 346 u32 write_actual; 347 struct list_head rx_free; 348 struct list_head rx_used; 349 int need_update; 350 struct iwl_rb_status *rb_stts; 351 dma_addr_t rb_stts_dma; 352 spinlock_t lock; 353}; 354 355#define IWL_SUPPORTED_RATES_IE_LEN 8 356 357#define MAX_TID_COUNT 9 358 359#define IWL_INVALID_RATE 0xFF 360#define IWL_INVALID_VALUE -1 361 362/** 363 * struct iwl_ht_agg -- aggregation status while waiting for block-ack 364 * @txq_id: Tx queue used for Tx attempt 365 * @frame_count: # frames attempted by Tx command 366 * @wait_for_ba: Expect block-ack before next Tx reply 367 * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window 368 * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window 369 * @bitmap1: High order, one bit for each frame pending ACK in Tx window 370 * @rate_n_flags: Rate at which Tx was attempted 371 * 372 * If REPLY_TX indicates that aggregation was attempted, driver must wait 373 * for block ack (REPLY_COMPRESSED_BA). This struct stores tx reply info 374 * until block ack arrives. 375 */ 376struct iwl_ht_agg { 377 u16 txq_id; 378 u16 frame_count; 379 u16 wait_for_ba; 380 u16 start_idx; 381 u64 bitmap; 382 u32 rate_n_flags; 383#define IWL_AGG_OFF 0 384#define IWL_AGG_ON 1 385#define IWL_EMPTYING_HW_QUEUE_ADDBA 2 386#define IWL_EMPTYING_HW_QUEUE_DELBA 3 387 u8 state; 388 u8 tx_fifo; 389}; 390 391 392struct iwl_tid_data { 393 u16 seq_number; /* agn only */ 394 u16 tfds_in_queue; 395 struct iwl_ht_agg agg; 396}; 397 398struct iwl_hw_key { 399 u32 cipher; 400 int keylen; 401 u8 keyidx; 402 u8 key[32]; 403}; 404 405union iwl_ht_rate_supp { 406 u16 rates; 407 struct { 408 u8 siso_rate; 409 u8 mimo_rate; 410 }; 411}; 412 413#define CFG_HT_RX_AMPDU_FACTOR_8K (0x0) 414#define CFG_HT_RX_AMPDU_FACTOR_16K (0x1) 415#define CFG_HT_RX_AMPDU_FACTOR_32K (0x2) 416#define CFG_HT_RX_AMPDU_FACTOR_64K (0x3) 417#define CFG_HT_RX_AMPDU_FACTOR_DEF CFG_HT_RX_AMPDU_FACTOR_64K 418#define CFG_HT_RX_AMPDU_FACTOR_MAX CFG_HT_RX_AMPDU_FACTOR_64K 419#define CFG_HT_RX_AMPDU_FACTOR_MIN CFG_HT_RX_AMPDU_FACTOR_8K 420 421/* 422 * Maximal MPDU density for TX aggregation 423 * 4 - 2us density 424 * 5 - 4us density 425 * 6 - 8us density 426 * 7 - 16us density 427 */ 428#define CFG_HT_MPDU_DENSITY_2USEC (0x4) 429#define CFG_HT_MPDU_DENSITY_4USEC (0x5) 430#define CFG_HT_MPDU_DENSITY_8USEC (0x6) 431#define CFG_HT_MPDU_DENSITY_16USEC (0x7) 432#define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_4USEC 433#define CFG_HT_MPDU_DENSITY_MAX CFG_HT_MPDU_DENSITY_16USEC 434#define CFG_HT_MPDU_DENSITY_MIN (0x1) 435 436struct iwl_ht_config { 437 bool single_chain_sufficient; 438 enum ieee80211_smps_mode smps; /* current smps mode */ 439}; 440 441/* QoS structures */ 442struct iwl_qos_info { 443 int qos_active; 444 struct iwl_qosparam_cmd def_qos_parm; 445}; 446 447/* 448 * Structure should be accessed with sta_lock held. When station addition 449 * is in progress (IWL_STA_UCODE_INPROGRESS) it is possible to access only 450 * the commands (iwl_addsta_cmd and iwl_link_quality_cmd) without sta_lock 451 * held. 452 */ 453struct iwl_station_entry { 454 struct iwl_addsta_cmd sta; 455 struct iwl_tid_data tid[MAX_TID_COUNT]; 456 u8 used, ctxid; 457 struct iwl_hw_key keyinfo; 458 struct iwl_link_quality_cmd *lq; 459}; 460 461struct iwl_station_priv_common { 462 struct iwl_rxon_context *ctx; 463 u8 sta_id; 464}; 465 466/* 467 * iwl_station_priv: Driver's private station information 468 * 469 * When mac80211 creates a station it reserves some space (hw->sta_data_size) 470 * in the structure for use by driver. This structure is places in that 471 * space. 472 */ 473struct iwl_station_priv { 474 struct iwl_station_priv_common common; 475 struct iwl_lq_sta lq_sta; 476 atomic_t pending_frames; 477 bool client; 478 bool asleep; 479 u8 max_agg_bufsize; 480}; 481 482/** 483 * struct iwl_vif_priv - driver's private per-interface information 484 * 485 * When mac80211 allocates a virtual interface, it can allocate 486 * space for us to put data into. 487 */ 488struct iwl_vif_priv { 489 struct iwl_rxon_context *ctx; 490 u8 ibss_bssid_sta_id; 491}; 492 493/* one for each uCode image (inst/data, boot/init/runtime) */ 494struct fw_desc { 495 void *v_addr; /* access by driver */ 496 dma_addr_t p_addr; /* access by card's busmaster DMA */ 497 u32 len; /* bytes */ 498}; 499 500struct fw_img { 501 struct fw_desc code, data; 502}; 503 504/* v1/v2 uCode file layout */ 505struct iwl_ucode_header { 506 __le32 ver; /* major/minor/API/serial */ 507 union { 508 struct { 509 __le32 inst_size; /* bytes of runtime code */ 510 __le32 data_size; /* bytes of runtime data */ 511 __le32 init_size; /* bytes of init code */ 512 __le32 init_data_size; /* bytes of init data */ 513 __le32 boot_size; /* bytes of bootstrap code */ 514 u8 data[0]; /* in same order as sizes */ 515 } v1; 516 struct { 517 __le32 build; /* build number */ 518 __le32 inst_size; /* bytes of runtime code */ 519 __le32 data_size; /* bytes of runtime data */ 520 __le32 init_size; /* bytes of init code */ 521 __le32 init_data_size; /* bytes of init data */ 522 __le32 boot_size; /* bytes of bootstrap code */ 523 u8 data[0]; /* in same order as sizes */ 524 } v2; 525 } u; 526}; 527 528/* 529 * new TLV uCode file layout 530 * 531 * The new TLV file format contains TLVs, that each specify 532 * some piece of data. To facilitate "groups", for example 533 * different instruction image with different capabilities, 534 * bundled with the same init image, an alternative mechanism 535 * is provided: 536 * When the alternative field is 0, that means that the item 537 * is always valid. When it is non-zero, then it is only 538 * valid in conjunction with items of the same alternative, 539 * in which case the driver (user) selects one alternative 540 * to use. 541 */ 542 543enum iwl_ucode_tlv_type { 544 IWL_UCODE_TLV_INVALID = 0, /* unused */ 545 IWL_UCODE_TLV_INST = 1, 546 IWL_UCODE_TLV_DATA = 2, 547 IWL_UCODE_TLV_INIT = 3, 548 IWL_UCODE_TLV_INIT_DATA = 4, 549 IWL_UCODE_TLV_BOOT = 5, 550 IWL_UCODE_TLV_PROBE_MAX_LEN = 6, /* a u32 value */ 551 IWL_UCODE_TLV_PAN = 7, 552 IWL_UCODE_TLV_RUNT_EVTLOG_PTR = 8, 553 IWL_UCODE_TLV_RUNT_EVTLOG_SIZE = 9, 554 IWL_UCODE_TLV_RUNT_ERRLOG_PTR = 10, 555 IWL_UCODE_TLV_INIT_EVTLOG_PTR = 11, 556 IWL_UCODE_TLV_INIT_EVTLOG_SIZE = 12, 557 IWL_UCODE_TLV_INIT_ERRLOG_PTR = 13, 558 IWL_UCODE_TLV_ENHANCE_SENS_TBL = 14, 559 IWL_UCODE_TLV_PHY_CALIBRATION_SIZE = 15, 560 /* 16 and 17 reserved for future use */ 561 IWL_UCODE_TLV_FLAGS = 18, 562}; 563 564/** 565 * enum iwl_ucode_tlv_flag - ucode API flags 566 * @IWL_UCODE_TLV_FLAGS_PAN: This is PAN capable microcode; this previously 567 * was a separate TLV but moved here to save space. 568 * @IWL_UCODE_TLV_FLAGS_NEWSCAN: new uCode scan behaviour on hidden SSID, 569 * treats good CRC threshold as a boolean 570 * @IWL_UCODE_TLV_FLAGS_MFP: This uCode image supports MFP (802.11w). 571 */ 572enum iwl_ucode_tlv_flag { 573 IWL_UCODE_TLV_FLAGS_PAN = BIT(0), 574 IWL_UCODE_TLV_FLAGS_NEWSCAN = BIT(1), 575 IWL_UCODE_TLV_FLAGS_MFP = BIT(2), 576}; 577 578struct iwl_ucode_tlv { 579 __le16 type; /* see above */ 580 __le16 alternative; /* see comment */ 581 __le32 length; /* not including type/length fields */ 582 u8 data[0]; 583} __packed; 584 585#define IWL_TLV_UCODE_MAGIC 0x0a4c5749 586 587struct iwl_tlv_ucode_header { 588 /* 589 * The TLV style ucode header is distinguished from 590 * the v1/v2 style header by first four bytes being 591 * zero, as such is an invalid combination of 592 * major/minor/API/serial versions. 593 */ 594 __le32 zero; 595 __le32 magic; 596 u8 human_readable[64]; 597 __le32 ver; /* major/minor/API/serial */ 598 __le32 build; 599 __le64 alternatives; /* bitmask of valid alternatives */ 600 /* 601 * The data contained herein has a TLV layout, 602 * see above for the TLV header and types. 603 * Note that each TLV is padded to a length 604 * that is a multiple of 4 for alignment. 605 */ 606 u8 data[0]; 607}; 608 609struct iwl_sensitivity_ranges { 610 u16 min_nrg_cck; 611 u16 max_nrg_cck; 612 613 u16 nrg_th_cck; 614 u16 nrg_th_ofdm; 615 616 u16 auto_corr_min_ofdm; 617 u16 auto_corr_min_ofdm_mrc; 618 u16 auto_corr_min_ofdm_x1; 619 u16 auto_corr_min_ofdm_mrc_x1; 620 621 u16 auto_corr_max_ofdm; 622 u16 auto_corr_max_ofdm_mrc; 623 u16 auto_corr_max_ofdm_x1; 624 u16 auto_corr_max_ofdm_mrc_x1; 625 626 u16 auto_corr_max_cck; 627 u16 auto_corr_max_cck_mrc; 628 u16 auto_corr_min_cck; 629 u16 auto_corr_min_cck_mrc; 630 631 u16 barker_corr_th_min; 632 u16 barker_corr_th_min_mrc; 633 u16 nrg_th_cca; 634}; 635 636 637#define KELVIN_TO_CELSIUS(x) ((x)-273) 638#define CELSIUS_TO_KELVIN(x) ((x)+273) 639 640 641/** 642 * struct iwl_hw_params 643 * @max_txq_num: Max # Tx queues supported 644 * @scd_bc_tbls_size: size of scheduler byte count tables 645 * @tfd_size: TFD size 646 * @tx/rx_chains_num: Number of TX/RX chains 647 * @valid_tx/rx_ant: usable antennas 648 * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2) 649 * @max_rxq_log: Log-base-2 of max_rxq_size 650 * @rx_page_order: Rx buffer page order 651 * @rx_wrt_ptr_reg: FH{39}_RSCSR_CHNL0_WPTR 652 * @max_stations: 653 * @ht40_channel: is 40MHz width possible in band 2.4 654 * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ) 655 * @sw_crypto: 0 for hw, 1 for sw 656 * @max_xxx_size: for ucode uses 657 * @ct_kill_threshold: temperature threshold 658 * @beacon_time_tsf_bits: number of valid tsf bits for beacon time 659 * @calib_init_cfg: setup initial calibrations for the hw 660 * @calib_rt_cfg: setup runtime calibrations for the hw 661 * @struct iwl_sensitivity_ranges: range of sensitivity values 662 */ 663struct iwl_hw_params { 664 u8 max_txq_num; 665 u16 scd_bc_tbls_size; 666 u32 tfd_size; 667 u8 tx_chains_num; 668 u8 rx_chains_num; 669 u8 valid_tx_ant; 670 u8 valid_rx_ant; 671 u16 max_rxq_size; 672 u16 max_rxq_log; 673 u32 rx_page_order; 674 u8 max_stations; 675 u8 ht40_channel; 676 u8 max_beacon_itrvl; /* in 1024 ms */ 677 u32 max_inst_size; 678 u32 max_data_size; 679 u32 ct_kill_threshold; /* value in hw-dependent units */ 680 u32 ct_kill_exit_threshold; /* value in hw-dependent units */ 681 /* for 1000, 6000 series and up */ 682 u16 beacon_time_tsf_bits; 683 u32 calib_init_cfg; 684 u32 calib_rt_cfg; 685 const struct iwl_sensitivity_ranges *sens; 686}; 687 688 689/****************************************************************************** 690 * 691 * Functions implemented in core module which are forward declared here 692 * for use by iwl-[4-5].c 693 * 694 * NOTE: The implementation of these functions are not hardware specific 695 * which is why they are in the core module files. 696 * 697 * Naming convention -- 698 * iwl_ <-- Is part of iwlwifi 699 * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX) 700 * 701 ****************************************************************************/ 702extern void iwl_update_chain_flags(struct iwl_priv *priv); 703extern const u8 iwl_bcast_addr[ETH_ALEN]; 704extern int iwl_queue_space(const struct iwl_queue *q); 705static inline int iwl_queue_used(const struct iwl_queue *q, int i) 706{ 707 return q->write_ptr >= q->read_ptr ? 708 (i >= q->read_ptr && i < q->write_ptr) : 709 !(i < q->read_ptr && i >= q->write_ptr); 710} 711 712 713static inline u8 get_cmd_index(struct iwl_queue *q, u32 index) 714{ 715 return index & (q->n_window - 1); 716} 717 718 719struct iwl_dma_ptr { 720 dma_addr_t dma; 721 void *addr; 722 size_t size; 723}; 724 725#define IWL_OPERATION_MODE_AUTO 0 726#define IWL_OPERATION_MODE_HT_ONLY 1 727#define IWL_OPERATION_MODE_MIXED 2 728#define IWL_OPERATION_MODE_20MHZ 3 729 730#define IWL_TX_CRC_SIZE 4 731#define IWL_TX_DELIMITER_SIZE 4 732 733#define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000 734 735/* Sensitivity and chain noise calibration */ 736#define INITIALIZATION_VALUE 0xFFFF 737#define IWL_CAL_NUM_BEACONS 16 738#define MAXIMUM_ALLOWED_PATHLOSS 15 739 740#define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3 741 742#define MAX_FA_OFDM 50 743#define MIN_FA_OFDM 5 744#define MAX_FA_CCK 50 745#define MIN_FA_CCK 5 746 747#define AUTO_CORR_STEP_OFDM 1 748 749#define AUTO_CORR_STEP_CCK 3 750#define AUTO_CORR_MAX_TH_CCK 160 751 752#define NRG_DIFF 2 753#define NRG_STEP_CCK 2 754#define NRG_MARGIN 8 755#define MAX_NUMBER_CCK_NO_FA 100 756 757#define AUTO_CORR_CCK_MIN_VAL_DEF (125) 758 759#define CHAIN_A 0 760#define CHAIN_B 1 761#define CHAIN_C 2 762#define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4 763#define ALL_BAND_FILTER 0xFF00 764#define IN_BAND_FILTER 0xFF 765#define MIN_AVERAGE_NOISE_MAX_VALUE 0xFFFFFFFF 766 767#define NRG_NUM_PREV_STAT_L 20 768#define NUM_RX_CHAINS 3 769 770enum iwlagn_false_alarm_state { 771 IWL_FA_TOO_MANY = 0, 772 IWL_FA_TOO_FEW = 1, 773 IWL_FA_GOOD_RANGE = 2, 774}; 775 776enum iwlagn_chain_noise_state { 777 IWL_CHAIN_NOISE_ALIVE = 0, /* must be 0 */ 778 IWL_CHAIN_NOISE_ACCUMULATE, 779 IWL_CHAIN_NOISE_CALIBRATED, 780 IWL_CHAIN_NOISE_DONE, 781}; 782 783 784/* 785 * enum iwl_calib 786 * defines the order in which results of initial calibrations 787 * should be sent to the runtime uCode 788 */ 789enum iwl_calib { 790 IWL_CALIB_XTAL, 791 IWL_CALIB_DC, 792 IWL_CALIB_LO, 793 IWL_CALIB_TX_IQ, 794 IWL_CALIB_TX_IQ_PERD, 795 IWL_CALIB_BASE_BAND, 796 IWL_CALIB_TEMP_OFFSET, 797 IWL_CALIB_MAX 798}; 799 800/* Opaque calibration results */ 801struct iwl_calib_result { 802 void *buf; 803 size_t buf_len; 804}; 805 806/* Sensitivity calib data */ 807struct iwl_sensitivity_data { 808 u32 auto_corr_ofdm; 809 u32 auto_corr_ofdm_mrc; 810 u32 auto_corr_ofdm_x1; 811 u32 auto_corr_ofdm_mrc_x1; 812 u32 auto_corr_cck; 813 u32 auto_corr_cck_mrc; 814 815 u32 last_bad_plcp_cnt_ofdm; 816 u32 last_fa_cnt_ofdm; 817 u32 last_bad_plcp_cnt_cck; 818 u32 last_fa_cnt_cck; 819 820 u32 nrg_curr_state; 821 u32 nrg_prev_state; 822 u32 nrg_value[10]; 823 u8 nrg_silence_rssi[NRG_NUM_PREV_STAT_L]; 824 u32 nrg_silence_ref; 825 u32 nrg_energy_idx; 826 u32 nrg_silence_idx; 827 u32 nrg_th_cck; 828 s32 nrg_auto_corr_silence_diff; 829 u32 num_in_cck_no_fa; 830 u32 nrg_th_ofdm; 831 832 u16 barker_corr_th_min; 833 u16 barker_corr_th_min_mrc; 834 u16 nrg_th_cca; 835}; 836 837/* Chain noise (differential Rx gain) calib data */ 838struct iwl_chain_noise_data { 839 u32 active_chains; 840 u32 chain_noise_a; 841 u32 chain_noise_b; 842 u32 chain_noise_c; 843 u32 chain_signal_a; 844 u32 chain_signal_b; 845 u32 chain_signal_c; 846 u16 beacon_count; 847 u8 disconn_array[NUM_RX_CHAINS]; 848 u8 delta_gain_code[NUM_RX_CHAINS]; 849 u8 radio_write; 850 u8 state; 851}; 852 853#define EEPROM_SEM_TIMEOUT 10 /* milliseconds */ 854#define EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */ 855 856#define IWL_TRAFFIC_ENTRIES (256) 857#define IWL_TRAFFIC_ENTRY_SIZE (64) 858 859enum { 860 MEASUREMENT_READY = (1 << 0), 861 MEASUREMENT_ACTIVE = (1 << 1), 862}; 863 864enum iwl_nvm_type { 865 NVM_DEVICE_TYPE_EEPROM = 0, 866 NVM_DEVICE_TYPE_OTP, 867}; 868 869/* 870 * Two types of OTP memory access modes 871 * IWL_OTP_ACCESS_ABSOLUTE - absolute address mode, 872 * based on physical memory addressing 873 * IWL_OTP_ACCESS_RELATIVE - relative address mode, 874 * based on logical memory addressing 875 */ 876enum iwl_access_mode { 877 IWL_OTP_ACCESS_ABSOLUTE, 878 IWL_OTP_ACCESS_RELATIVE, 879}; 880 881/** 882 * enum iwl_pa_type - Power Amplifier type 883 * @IWL_PA_SYSTEM: based on uCode configuration 884 * @IWL_PA_INTERNAL: use Internal only 885 */ 886enum iwl_pa_type { 887 IWL_PA_SYSTEM = 0, 888 IWL_PA_INTERNAL = 1, 889}; 890 891/* interrupt statistics */ 892struct isr_statistics { 893 u32 hw; 894 u32 sw; 895 u32 err_code; 896 u32 sch; 897 u32 alive; 898 u32 rfkill; 899 u32 ctkill; 900 u32 wakeup; 901 u32 rx; 902 u32 rx_handlers[REPLY_MAX]; 903 u32 tx; 904 u32 unhandled; 905}; 906 907/* reply_tx_statistics (for _agn devices) */ 908struct reply_tx_error_statistics { 909 u32 pp_delay; 910 u32 pp_few_bytes; 911 u32 pp_bt_prio; 912 u32 pp_quiet_period; 913 u32 pp_calc_ttak; 914 u32 int_crossed_retry; 915 u32 short_limit; 916 u32 long_limit; 917 u32 fifo_underrun; 918 u32 drain_flow; 919 u32 rfkill_flush; 920 u32 life_expire; 921 u32 dest_ps; 922 u32 host_abort; 923 u32 bt_retry; 924 u32 sta_invalid; 925 u32 frag_drop; 926 u32 tid_disable; 927 u32 fifo_flush; 928 u32 insuff_cf_poll; 929 u32 fail_hw_drop; 930 u32 sta_color_mismatch; 931 u32 unknown; 932}; 933 934/* reply_agg_tx_statistics (for _agn devices) */ 935struct reply_agg_tx_error_statistics { 936 u32 underrun; 937 u32 bt_prio; 938 u32 few_bytes; 939 u32 abort; 940 u32 last_sent_ttl; 941 u32 last_sent_try; 942 u32 last_sent_bt_kill; 943 u32 scd_query; 944 u32 bad_crc32; 945 u32 response; 946 u32 dump_tx; 947 u32 delay_tx; 948 u32 unknown; 949}; 950 951/* management statistics */ 952enum iwl_mgmt_stats { 953 MANAGEMENT_ASSOC_REQ = 0, 954 MANAGEMENT_ASSOC_RESP, 955 MANAGEMENT_REASSOC_REQ, 956 MANAGEMENT_REASSOC_RESP, 957 MANAGEMENT_PROBE_REQ, 958 MANAGEMENT_PROBE_RESP, 959 MANAGEMENT_BEACON, 960 MANAGEMENT_ATIM, 961 MANAGEMENT_DISASSOC, 962 MANAGEMENT_AUTH, 963 MANAGEMENT_DEAUTH, 964 MANAGEMENT_ACTION, 965 MANAGEMENT_MAX, 966}; 967/* control statistics */ 968enum iwl_ctrl_stats { 969 CONTROL_BACK_REQ = 0, 970 CONTROL_BACK, 971 CONTROL_PSPOLL, 972 CONTROL_RTS, 973 CONTROL_CTS, 974 CONTROL_ACK, 975 CONTROL_CFEND, 976 CONTROL_CFENDACK, 977 CONTROL_MAX, 978}; 979 980struct traffic_stats { 981#ifdef CONFIG_IWLWIFI_DEBUGFS 982 u32 mgmt[MANAGEMENT_MAX]; 983 u32 ctrl[CONTROL_MAX]; 984 u32 data_cnt; 985 u64 data_bytes; 986#endif 987}; 988 989/* 990 * schedule the timer to wake up every UCODE_TRACE_PERIOD milliseconds 991 * to perform continuous uCode event logging operation if enabled 992 */ 993#define UCODE_TRACE_PERIOD (100) 994 995/* 996 * iwl_event_log: current uCode event log position 997 * 998 * @ucode_trace: enable/disable ucode continuous trace timer 999 * @num_wraps: how many times the event buffer wraps 1000 * @next_entry: the entry just before the next one that uCode would fill 1001 * @non_wraps_count: counter for no wrap detected when dump ucode events 1002 * @wraps_once_count: counter for wrap once detected when dump ucode events 1003 * @wraps_more_count: counter for wrap more than once detected 1004 * when dump ucode events 1005 */ 1006struct iwl_event_log { 1007 bool ucode_trace; 1008 u32 num_wraps; 1009 u32 next_entry; 1010 int non_wraps_count; 1011 int wraps_once_count; 1012 int wraps_more_count; 1013}; 1014 1015/* 1016 * host interrupt timeout value 1017 * used with setting interrupt coalescing timer 1018 * the CSR_INT_COALESCING is an 8 bit register in 32-usec unit 1019 * 1020 * default interrupt coalescing timer is 64 x 32 = 2048 usecs 1021 * default interrupt coalescing calibration timer is 16 x 32 = 512 usecs 1022 */ 1023#define IWL_HOST_INT_TIMEOUT_MAX (0xFF) 1024#define IWL_HOST_INT_TIMEOUT_DEF (0x40) 1025#define IWL_HOST_INT_TIMEOUT_MIN (0x0) 1026#define IWL_HOST_INT_CALIB_TIMEOUT_MAX (0xFF) 1027#define IWL_HOST_INT_CALIB_TIMEOUT_DEF (0x10) 1028#define IWL_HOST_INT_CALIB_TIMEOUT_MIN (0x0) 1029 1030/* 1031 * This is the threshold value of plcp error rate per 100mSecs. It is 1032 * used to set and check for the validity of plcp_delta. 1033 */ 1034#define IWL_MAX_PLCP_ERR_THRESHOLD_MIN (1) 1035#define IWL_MAX_PLCP_ERR_THRESHOLD_DEF (50) 1036#define IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF (100) 1037#define IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF (200) 1038#define IWL_MAX_PLCP_ERR_THRESHOLD_MAX (255) 1039#define IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE (0) 1040 1041#define IWL_DELAY_NEXT_FORCE_RF_RESET (HZ*3) 1042#define IWL_DELAY_NEXT_FORCE_FW_RELOAD (HZ*5) 1043 1044/* TX queue watchdog timeouts in mSecs */ 1045#define IWL_DEF_WD_TIMEOUT (2000) 1046#define IWL_LONG_WD_TIMEOUT (10000) 1047#define IWL_MAX_WD_TIMEOUT (120000) 1048 1049/* BT Antenna Coupling Threshold (dB) */ 1050#define IWL_BT_ANTENNA_COUPLING_THRESHOLD (35) 1051 1052/* Firmware reload counter and Timestamp */ 1053#define IWL_MIN_RELOAD_DURATION 1000 /* 1000 ms */ 1054#define IWL_MAX_CONTINUE_RELOAD_CNT 4 1055 1056 1057enum iwl_reset { 1058 IWL_RF_RESET = 0, 1059 IWL_FW_RESET, 1060 IWL_MAX_FORCE_RESET, 1061}; 1062 1063struct iwl_force_reset { 1064 int reset_request_count; 1065 int reset_success_count; 1066 int reset_reject_count; 1067 unsigned long reset_duration; 1068 unsigned long last_force_reset_jiffies; 1069}; 1070 1071/* extend beacon time format bit shifting */ 1072/* 1073 * for _agn devices 1074 * bits 31:22 - extended 1075 * bits 21:0 - interval 1076 */ 1077#define IWLAGN_EXT_BEACON_TIME_POS 22 1078 1079/** 1080 * struct iwl_notification_wait - notification wait entry 1081 * @list: list head for global list 1082 * @fn: function called with the notification 1083 * @cmd: command ID 1084 * 1085 * This structure is not used directly, to wait for a 1086 * notification declare it on the stack, and call 1087 * iwlagn_init_notification_wait() with appropriate 1088 * parameters. Then do whatever will cause the ucode 1089 * to notify the driver, and to wait for that then 1090 * call iwlagn_wait_notification(). 1091 * 1092 * Each notification is one-shot. If at some point we 1093 * need to support multi-shot notifications (which 1094 * can't be allocated on the stack) we need to modify 1095 * the code for them. 1096 */ 1097struct iwl_notification_wait { 1098 struct list_head list; 1099 1100 void (*fn)(struct iwl_priv *priv, struct iwl_rx_packet *pkt, 1101 void *data); 1102 void *fn_data; 1103 1104 u8 cmd; 1105 bool triggered, aborted; 1106}; 1107 1108enum iwl_rxon_context_id { 1109 IWL_RXON_CTX_BSS, 1110 IWL_RXON_CTX_PAN, 1111 1112 NUM_IWL_RXON_CTX 1113}; 1114 1115struct iwl_rxon_context { 1116 struct ieee80211_vif *vif; 1117 1118 const u8 *ac_to_fifo; 1119 const u8 *ac_to_queue; 1120 u8 mcast_queue; 1121 1122 /* 1123 * We could use the vif to indicate active, but we 1124 * also need it to be active during disabling when 1125 * we already removed the vif for type setting. 1126 */ 1127 bool always_active, is_active; 1128 1129 bool ht_need_multiple_chains; 1130 1131 enum iwl_rxon_context_id ctxid; 1132 1133 u32 interface_modes, exclusive_interface_modes; 1134 u8 unused_devtype, ap_devtype, ibss_devtype, station_devtype; 1135 1136 /* 1137 * We declare this const so it can only be 1138 * changed via explicit cast within the 1139 * routines that actually update the physical 1140 * hardware. 1141 */ 1142 const struct iwl_rxon_cmd active; 1143 struct iwl_rxon_cmd staging; 1144 1145 struct iwl_rxon_time_cmd timing; 1146 1147 struct iwl_qos_info qos_data; 1148 1149 u8 bcast_sta_id, ap_sta_id; 1150 1151 u8 rxon_cmd, rxon_assoc_cmd, rxon_timing_cmd; 1152 u8 qos_cmd; 1153 u8 wep_key_cmd; 1154 1155 struct iwl_wep_key wep_keys[WEP_KEYS_MAX]; 1156 u8 key_mapping_keys; 1157 1158 __le32 station_flags; 1159 1160 struct { 1161 bool non_gf_sta_present; 1162 u8 protection; 1163 bool enabled, is_40mhz; 1164 u8 extension_chan_offset; 1165 } ht; 1166 1167 bool last_tx_rejected; 1168}; 1169 1170enum iwl_scan_type { 1171 IWL_SCAN_NORMAL, 1172 IWL_SCAN_RADIO_RESET, 1173 IWL_SCAN_OFFCH_TX, 1174}; 1175 1176enum iwlagn_ucode_type { 1177 IWL_UCODE_NONE, 1178 IWL_UCODE_REGULAR, 1179 IWL_UCODE_INIT, 1180 IWL_UCODE_WOWLAN, 1181}; 1182 1183#ifdef CONFIG_IWLWIFI_DEVICE_SVTOOL 1184struct iwl_testmode_trace { 1185 u32 buff_size; 1186 u32 total_size; 1187 u32 num_chunks; 1188 u8 *cpu_addr; 1189 u8 *trace_addr; 1190 dma_addr_t dma_addr; 1191 bool trace_enabled; 1192}; 1193#endif 1194 1195struct iwl_bus; 1196 1197/** 1198 * struct iwl_bus_ops - bus specific operations 1199 1200 * @get_pm_support: must returns true if the bus can go to sleep 1201 * @apm_config: will be called during the config of the APM configuration 1202 * @set_drv_data: set the priv pointer to the bus layer 1203 * @get_dev: returns the device struct 1204 * @get_irq: returns the irq number 1205 * @get_hw_id: prints the hw_id in the provided buffer 1206 * @write8: write a byte to register at offset ofs 1207 * @write32: write a dword to register at offset ofs 1208 * @wread32: read a dword at register at offset ofs 1209 */ 1210struct iwl_bus_ops { 1211 bool (*get_pm_support)(struct iwl_bus *bus); 1212 void (*apm_config)(struct iwl_bus *bus); 1213 void (*set_drv_data)(struct iwl_bus *bus, void *priv); 1214 struct device *(*get_dev)(const struct iwl_bus *bus); 1215 unsigned int (*get_irq)(const struct iwl_bus *bus); 1216 void (*get_hw_id)(struct iwl_bus *bus, char buf[], int buf_len); 1217 void (*write8)(struct iwl_bus *bus, u32 ofs, u8 val); 1218 void (*write32)(struct iwl_bus *bus, u32 ofs, u32 val); 1219 u32 (*read32)(struct iwl_bus *bus, u32 ofs); 1220}; 1221 1222struct iwl_bus { 1223 /* pointer to bus specific struct */ 1224 void *bus_specific; 1225 1226 /* Common data to all buses */ 1227 struct iwl_priv *priv; /* driver's context */ 1228 struct device *dev; 1229 struct iwl_bus_ops *ops; 1230 unsigned int irq; 1231}; 1232 1233struct iwl_trans; 1234 1235/** 1236 * struct iwl_trans_ops - transport specific operations 1237 * @start_device: allocates and inits all the resources for the transport 1238 * layer. 1239 * @prepare_card_hw: claim the ownership on the HW. Will be called during 1240 * probe. 1241 * @tx_start: starts and configures all the Tx fifo - usually done once the fw 1242 * is alive. 1243 * @stop_device:stops the whole device (embedded CPU put to reset) 1244 * @rx_free: frees the rx memory 1245 * @tx_free: frees the tx memory 1246 * @send_cmd:send a host command 1247 * @send_cmd_pdu:send a host command: flags can be CMD_* 1248 * @get_tx_cmd: returns a pointer to a new Tx cmd for the upper layer use 1249 * @tx: send an skb 1250 * @txq_agg_setup: setup a tx queue for AMPDU - will be called once the HW is 1251 * ready and a successful ADDBA response has been received. 1252 * @txq_agg_disable: de-configure a Tx queue to send AMPDUs 1253 * @kick_nic: remove the RESET from the embedded CPU and let it run 1254 * @sync_irq: the upper layer will typically disable interrupt and call this 1255 * handler. After this handler returns, it is guaranteed that all 1256 * the ISR / tasklet etc... have finished running and the transport 1257 * layer shall not pass any Rx. 1258 * @free: release all the ressource for the transport layer itself such as 1259 * irq, tasklet etc... 1260 */ 1261struct iwl_trans_ops { 1262 1263 int (*start_device)(struct iwl_priv *priv); 1264 int (*prepare_card_hw)(struct iwl_priv *priv); 1265 void (*stop_device)(struct iwl_priv *priv); 1266 void (*tx_start)(struct iwl_priv *priv); 1267 void (*tx_free)(struct iwl_priv *priv); 1268 void (*rx_free)(struct iwl_priv *priv); 1269 1270 int (*send_cmd)(struct iwl_priv *priv, struct iwl_host_cmd *cmd); 1271 1272 int (*send_cmd_pdu)(struct iwl_priv *priv, u8 id, u32 flags, u16 len, 1273 const void *data); 1274 struct iwl_tx_cmd * (*get_tx_cmd)(struct iwl_priv *priv, int txq_id); 1275 int (*tx)(struct iwl_priv *priv, struct sk_buff *skb, 1276 struct iwl_tx_cmd *tx_cmd, int txq_id, __le16 fc, bool ampdu, 1277 struct iwl_rxon_context *ctx); 1278 1279 int (*txq_agg_disable)(struct iwl_priv *priv, u16 txq_id, 1280 u16 ssn_idx, u8 tx_fifo); 1281 void (*txq_agg_setup)(struct iwl_priv *priv, int sta_id, int tid, 1282 int frame_limit); 1283 1284 void (*kick_nic)(struct iwl_priv *priv); 1285 1286 void (*sync_irq)(struct iwl_priv *priv); 1287 void (*free)(struct iwl_priv *priv); 1288}; 1289 1290struct iwl_trans { 1291 const struct iwl_trans_ops *ops; 1292}; 1293 1294/* uCode ownership */ 1295#define IWL_OWNERSHIP_DRIVER 0 1296#define IWL_OWNERSHIP_TM 1 1297 1298struct iwl_priv { 1299 1300 /* ieee device used by generic ieee processing code */ 1301 struct ieee80211_hw *hw; 1302 struct ieee80211_channel *ieee_channels; 1303 struct ieee80211_rate *ieee_rates; 1304 struct iwl_cfg *cfg; 1305 1306 enum ieee80211_band band; 1307 1308 void (*pre_rx_handler)(struct iwl_priv *priv, 1309 struct iwl_rx_mem_buffer *rxb); 1310 void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv, 1311 struct iwl_rx_mem_buffer *rxb); 1312 1313 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS]; 1314 1315 /* spectrum measurement report caching */ 1316 struct iwl_spectrum_notification measure_report; 1317 u8 measurement_status; 1318 1319 /* ucode beacon time */ 1320 u32 ucode_beacon_time; 1321 int missed_beacon_threshold; 1322 1323 /* track IBSS manager (last beacon) status */ 1324 u32 ibss_manager; 1325 1326 /* jiffies when last recovery from statistics was performed */ 1327 unsigned long rx_statistics_jiffies; 1328 1329 /* force reset */ 1330 struct iwl_force_reset force_reset[IWL_MAX_FORCE_RESET]; 1331 1332 /* firmware reload counter and timestamp */ 1333 unsigned long reload_jiffies; 1334 int reload_count; 1335 1336 /* we allocate array of iwl_channel_info for NIC's valid channels. 1337 * Access via channel # using indirect index array */ 1338 struct iwl_channel_info *channel_info; /* channel info array */ 1339 u8 channel_count; /* # of channels */ 1340 1341 /* thermal calibration */ 1342 s32 temperature; /* degrees Kelvin */ 1343 s32 last_temperature; 1344 1345 /* init calibration results */ 1346 struct iwl_calib_result calib_results[IWL_CALIB_MAX]; 1347 1348 /* Scan related variables */ 1349 unsigned long scan_start; 1350 unsigned long scan_start_tsf; 1351 void *scan_cmd; 1352 enum ieee80211_band scan_band; 1353 struct cfg80211_scan_request *scan_request; 1354 struct ieee80211_vif *scan_vif; 1355 enum iwl_scan_type scan_type; 1356 u8 scan_tx_ant[IEEE80211_NUM_BANDS]; 1357 u8 mgmt_tx_ant; 1358 1359 /* spinlock */ 1360 spinlock_t lock; /* protect general shared data */ 1361 spinlock_t hcmd_lock; /* protect hcmd */ 1362 spinlock_t reg_lock; /* protect hw register access */ 1363 struct mutex mutex; 1364 1365 struct iwl_bus bus; /* bus specific data */ 1366 struct iwl_trans trans; 1367 1368 /* microcode/device supports multiple contexts */ 1369 u8 valid_contexts; 1370 1371 /* command queue number */ 1372 u8 cmd_queue; 1373 1374 /* max number of station keys */ 1375 u8 sta_key_max_num; 1376 1377 bool new_scan_threshold_behaviour; 1378 1379 /* EEPROM MAC addresses */ 1380 struct mac_address addresses[2]; 1381 1382 /* uCode images, save to reload in case of failure */ 1383 int fw_index; /* firmware we're trying to load */ 1384 u32 ucode_ver; /* version of ucode, copy of 1385 iwl_ucode.ver */ 1386 1387 /* uCode owner: default: IWL_OWNERSHIP_DRIVER */ 1388 u8 ucode_owner; 1389 1390 struct fw_img ucode_rt; 1391 struct fw_img ucode_init; 1392 1393 enum iwlagn_ucode_type ucode_type; 1394 u8 ucode_write_complete; /* the image write is complete */ 1395 char firmware_name[25]; 1396 1397 struct iwl_rxon_context contexts[NUM_IWL_RXON_CTX]; 1398 1399 __le16 switch_channel; 1400 1401 struct { 1402 u32 error_event_table; 1403 u32 log_event_table; 1404 } device_pointers; 1405 1406 u16 active_rate; 1407 1408 u8 start_calib; 1409 struct iwl_sensitivity_data sensitivity_data; 1410 struct iwl_chain_noise_data chain_noise_data; 1411 bool enhance_sensitivity_table; 1412 __le16 sensitivity_tbl[HD_TABLE_SIZE]; 1413 __le16 enhance_sensitivity_tbl[ENHANCE_HD_TABLE_ENTRIES]; 1414 1415 struct iwl_ht_config current_ht_config; 1416 1417 /* Rate scaling data */ 1418 u8 retry_rate; 1419 1420 wait_queue_head_t wait_command_queue; 1421 1422 int activity_timer_active; 1423 1424 /* Rx and Tx DMA processing queues */ 1425 struct iwl_rx_queue rxq; 1426 struct iwl_tx_queue *txq; 1427 unsigned long txq_ctx_active_msk; 1428 struct iwl_dma_ptr kw; /* keep warm address */ 1429 struct iwl_dma_ptr scd_bc_tbls; 1430 1431 u32 scd_base_addr; /* scheduler sram base address */ 1432 1433 unsigned long status; 1434 1435 /* counts mgmt, ctl, and data packets */ 1436 struct traffic_stats tx_stats; 1437 struct traffic_stats rx_stats; 1438 1439 /* counts interrupts */ 1440 struct isr_statistics isr_stats; 1441 1442 struct iwl_power_mgr power_data; 1443 struct iwl_tt_mgmt thermal_throttle; 1444 1445 /* station table variables */ 1446 1447 /* Note: if lock and sta_lock are needed, lock must be acquired first */ 1448 spinlock_t sta_lock; 1449 int num_stations; 1450 struct iwl_station_entry stations[IWLAGN_STATION_COUNT]; 1451 unsigned long ucode_key_table; 1452 1453 /* queue refcounts */ 1454#define IWL_MAX_HW_QUEUES 32 1455 unsigned long queue_stopped[BITS_TO_LONGS(IWL_MAX_HW_QUEUES)]; 1456 /* for each AC */ 1457 atomic_t queue_stop_count[4]; 1458 1459 /* Indication if ieee80211_ops->open has been called */ 1460 u8 is_open; 1461 1462 u8 mac80211_registered; 1463 1464 /* eeprom -- this is in the card's little endian byte order */ 1465 u8 *eeprom; 1466 int nvm_device_type; 1467 struct iwl_eeprom_calib_info *calib_info; 1468 1469 enum nl80211_iftype iw_mode; 1470 1471 /* Last Rx'd beacon timestamp */ 1472 u64 timestamp; 1473 1474 struct { 1475 __le32 flag; 1476 struct statistics_general_common common; 1477 struct statistics_rx_non_phy rx_non_phy; 1478 struct statistics_rx_phy rx_ofdm; 1479 struct statistics_rx_ht_phy rx_ofdm_ht; 1480 struct statistics_rx_phy rx_cck; 1481 struct statistics_tx tx; 1482#ifdef CONFIG_IWLWIFI_DEBUGFS 1483 struct statistics_bt_activity bt_activity; 1484 __le32 num_bt_kills, accum_num_bt_kills; 1485#endif 1486 } statistics; 1487#ifdef CONFIG_IWLWIFI_DEBUGFS 1488 struct { 1489 struct statistics_general_common common; 1490 struct statistics_rx_non_phy rx_non_phy; 1491 struct statistics_rx_phy rx_ofdm; 1492 struct statistics_rx_ht_phy rx_ofdm_ht; 1493 struct statistics_rx_phy rx_cck; 1494 struct statistics_tx tx; 1495 struct statistics_bt_activity bt_activity; 1496 } accum_stats, delta_stats, max_delta_stats; 1497#endif 1498 1499 struct { 1500 /* INT ICT Table */ 1501 __le32 *ict_tbl; 1502 void *ict_tbl_vir; 1503 dma_addr_t ict_tbl_dma; 1504 dma_addr_t aligned_ict_tbl_dma; 1505 int ict_index; 1506 u32 inta; 1507 bool use_ict; 1508 /* 1509 * reporting the number of tids has AGG on. 0 means 1510 * no AGGREGATION 1511 */ 1512 u8 agg_tids_count; 1513 1514 struct iwl_rx_phy_res last_phy_res; 1515 bool last_phy_res_valid; 1516 1517 struct completion firmware_loading_complete; 1518 1519 u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr; 1520 u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr; 1521 1522 /* 1523 * chain noise reset and gain commands are the 1524 * two extra calibration commands follows the standard 1525 * phy calibration commands 1526 */ 1527 u8 phy_calib_chain_noise_reset_cmd; 1528 u8 phy_calib_chain_noise_gain_cmd; 1529 1530 /* counts reply_tx error */ 1531 struct reply_tx_error_statistics reply_tx_stats; 1532 struct reply_agg_tx_error_statistics reply_agg_tx_stats; 1533 /* notification wait support */ 1534 struct list_head notif_waits; 1535 spinlock_t notif_wait_lock; 1536 wait_queue_head_t notif_waitq; 1537 1538 /* remain-on-channel offload support */ 1539 struct ieee80211_channel *hw_roc_channel; 1540 struct delayed_work hw_roc_work; 1541 enum nl80211_channel_type hw_roc_chantype; 1542 int hw_roc_duration; 1543 bool hw_roc_setup; 1544 1545 struct sk_buff *offchan_tx_skb; 1546 int offchan_tx_timeout; 1547 struct ieee80211_channel *offchan_tx_chan; 1548 } _agn; 1549 1550 /* bt coex */ 1551 u8 bt_enable_flag; 1552 u8 bt_status; 1553 u8 bt_traffic_load, last_bt_traffic_load; 1554 bool bt_ch_announce; 1555 bool bt_full_concurrent; 1556 bool bt_ant_couple_ok; 1557 __le32 kill_ack_mask; 1558 __le32 kill_cts_mask; 1559 __le16 bt_valid; 1560 u16 bt_on_thresh; 1561 u16 bt_duration; 1562 u16 dynamic_frag_thresh; 1563 u8 bt_ci_compliance; 1564 struct work_struct bt_traffic_change_work; 1565 bool bt_enable_pspoll; 1566 struct iwl_rxon_context *cur_rssi_ctx; 1567 bool bt_is_sco; 1568 1569 struct iwl_hw_params hw_params; 1570 1571 u32 inta_mask; 1572 1573 struct workqueue_struct *workqueue; 1574 1575 struct work_struct restart; 1576 struct work_struct scan_completed; 1577 struct work_struct rx_replenish; 1578 struct work_struct abort_scan; 1579 1580 struct work_struct beacon_update; 1581 struct iwl_rxon_context *beacon_ctx; 1582 struct sk_buff *beacon_skb; 1583 void *beacon_cmd; 1584 1585 struct work_struct tt_work; 1586 struct work_struct ct_enter; 1587 struct work_struct ct_exit; 1588 struct work_struct start_internal_scan; 1589 struct work_struct tx_flush; 1590 struct work_struct bt_full_concurrency; 1591 struct work_struct bt_runtime_config; 1592 1593 struct tasklet_struct irq_tasklet; 1594 1595 struct delayed_work scan_check; 1596 1597 /* TX Power */ 1598 s8 tx_power_user_lmt; 1599 s8 tx_power_device_lmt; 1600 s8 tx_power_lmt_in_half_dbm; /* max tx power in half-dBm format */ 1601 s8 tx_power_next; 1602 1603 1604#ifdef CONFIG_IWLWIFI_DEBUG 1605 /* debugging info */ 1606 u32 debug_level; /* per device debugging will override global 1607 iwl_debug_level if set */ 1608#endif /* CONFIG_IWLWIFI_DEBUG */ 1609#ifdef CONFIG_IWLWIFI_DEBUGFS 1610 /* debugfs */ 1611 u16 tx_traffic_idx; 1612 u16 rx_traffic_idx; 1613 u8 *tx_traffic; 1614 u8 *rx_traffic; 1615 struct dentry *debugfs_dir; 1616 u32 dbgfs_sram_offset, dbgfs_sram_len; 1617 bool disable_ht40; 1618#endif /* CONFIG_IWLWIFI_DEBUGFS */ 1619 1620 struct work_struct txpower_work; 1621 u32 disable_sens_cal; 1622 u32 disable_chain_noise_cal; 1623 struct work_struct run_time_calib_work; 1624 struct timer_list statistics_periodic; 1625 struct timer_list ucode_trace; 1626 struct timer_list watchdog; 1627 1628 struct iwl_event_log event_log; 1629 1630 struct led_classdev led; 1631 unsigned long blink_on, blink_off; 1632 bool led_registered; 1633#ifdef CONFIG_IWLWIFI_DEVICE_SVTOOL 1634 struct iwl_testmode_trace testmode_trace; 1635#endif 1636 u32 tm_fixed_rate; 1637 1638}; /*iwl_priv */ 1639 1640static inline void iwl_txq_ctx_activate(struct iwl_priv *priv, int txq_id) 1641{ 1642 set_bit(txq_id, &priv->txq_ctx_active_msk); 1643} 1644 1645static inline void iwl_txq_ctx_deactivate(struct iwl_priv *priv, int txq_id) 1646{ 1647 clear_bit(txq_id, &priv->txq_ctx_active_msk); 1648} 1649 1650#ifdef CONFIG_IWLWIFI_DEBUG 1651/* 1652 * iwl_get_debug_level: Return active debug level for device 1653 * 1654 * Using sysfs it is possible to set per device debug level. This debug 1655 * level will be used if set, otherwise the global debug level which can be 1656 * set via module parameter is used. 1657 */ 1658static inline u32 iwl_get_debug_level(struct iwl_priv *priv) 1659{ 1660 if (priv->debug_level) 1661 return priv->debug_level; 1662 else 1663 return iwl_debug_level; 1664} 1665#else 1666static inline u32 iwl_get_debug_level(struct iwl_priv *priv) 1667{ 1668 return iwl_debug_level; 1669} 1670#endif 1671 1672 1673static inline struct ieee80211_hdr *iwl_tx_queue_get_hdr(struct iwl_priv *priv, 1674 int txq_id, int idx) 1675{ 1676 if (priv->txq[txq_id].txb[idx].skb) 1677 return (struct ieee80211_hdr *)priv->txq[txq_id]. 1678 txb[idx].skb->data; 1679 return NULL; 1680} 1681 1682static inline struct iwl_rxon_context * 1683iwl_rxon_ctx_from_vif(struct ieee80211_vif *vif) 1684{ 1685 struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; 1686 1687 return vif_priv->ctx; 1688} 1689 1690#define for_each_context(priv, ctx) \ 1691 for (ctx = &priv->contexts[IWL_RXON_CTX_BSS]; \ 1692 ctx < &priv->contexts[NUM_IWL_RXON_CTX]; ctx++) \ 1693 if (priv->valid_contexts & BIT(ctx->ctxid)) 1694 1695static inline int iwl_is_associated_ctx(struct iwl_rxon_context *ctx) 1696{ 1697 return (ctx->active.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0; 1698} 1699 1700static inline int iwl_is_associated(struct iwl_priv *priv, 1701 enum iwl_rxon_context_id ctxid) 1702{ 1703 return iwl_is_associated_ctx(&priv->contexts[ctxid]); 1704} 1705 1706static inline int iwl_is_any_associated(struct iwl_priv *priv) 1707{ 1708 struct iwl_rxon_context *ctx; 1709 for_each_context(priv, ctx) 1710 if (iwl_is_associated_ctx(ctx)) 1711 return true; 1712 return false; 1713} 1714 1715static inline int is_channel_valid(const struct iwl_channel_info *ch_info) 1716{ 1717 if (ch_info == NULL) 1718 return 0; 1719 return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0; 1720} 1721 1722static inline int is_channel_radar(const struct iwl_channel_info *ch_info) 1723{ 1724 return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0; 1725} 1726 1727static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info) 1728{ 1729 return ch_info->band == IEEE80211_BAND_5GHZ; 1730} 1731 1732static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info) 1733{ 1734 return ch_info->band == IEEE80211_BAND_2GHZ; 1735} 1736 1737static inline int is_channel_passive(const struct iwl_channel_info *ch) 1738{ 1739 return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0; 1740} 1741 1742static inline int is_channel_ibss(const struct iwl_channel_info *ch) 1743{ 1744 return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0; 1745} 1746 1747static inline void __iwl_free_pages(struct iwl_priv *priv, struct page *page) 1748{ 1749 __free_pages(page, priv->hw_params.rx_page_order); 1750} 1751 1752static inline void iwl_free_pages(struct iwl_priv *priv, unsigned long page) 1753{ 1754 free_pages(page, priv->hw_params.rx_page_order); 1755} 1756#endif /* __iwl_dev_h__ */ 1757