drivers/net/wireless/ralink/rt2x00/rt2x00.h

/* [<][>][^][v][top][bottom][index][help] */
This source file includes following definitions.
DECLARE_EWMA
vif_to_intf
sta_to_rt2x00_sta
rt2x00_rf_read
rt2x00_rf_write
rt2x00_eeprom_addr
rt2x00_eeprom_read
rt2x00_eeprom_write
rt2x00_eeprom_byte
rt2x00_set_chip
rt2x00_set_rt
rt2x00_set_rf
rt2x00_rt
rt2x00_rf
rt2x00_rev
rt2x00_rt_rev
rt2x00_rt_rev_lt
rt2x00_rt_rev_gte
rt2x00_set_chip_intf
rt2x00_intf
rt2x00_is_pci
rt2x00_is_pcie
rt2x00_is_usb
rt2x00_is_soc
rt2x00_has_cap_flag
rt2x00_has_cap_hw_crypto
rt2x00_has_cap_power_limit
rt2x00_has_cap_control_filters
rt2x00_has_cap_control_filter_pspoll
rt2x00_has_cap_pre_tbtt_interrupt
rt2x00_has_cap_link_tuning
rt2x00_has_cap_frame_type
rt2x00_has_cap_rf_sequence
rt2x00_has_cap_external_lna_a
rt2x00_has_cap_external_lna_bg
rt2x00_has_cap_double_antenna
rt2x00_has_cap_bt_coexist
rt2x00_has_cap_vco_recalibration
rt2x00_has_cap_restart_hw
rt2x00queue_get_tx_queue
rt2x00debug_dump_frame
   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3         Copyright (C) 2010 Willow Garage <http://www.willowgarage.com>
   4         Copyright (C) 2004 - 2010 Ivo van Doorn <IvDoorn@gmail.com>
   5         Copyright (C) 2004 - 2009 Gertjan van Wingerde <gwingerde@gmail.com>
   6         <http://rt2x00.serialmonkey.com>
   7 
   8  */
   9 
  10 /*
  11         Module: rt2x00
  12         Abstract: rt2x00 global information.
  13  */
  14 
  15 #ifndef RT2X00_H
  16 #define RT2X00_H
  17 
  18 #include <linux/bitops.h>
  19 #include <linux/interrupt.h>
  20 #include <linux/skbuff.h>
  21 #include <linux/workqueue.h>
  22 #include <linux/firmware.h>
  23 #include <linux/leds.h>
  24 #include <linux/mutex.h>
  25 #include <linux/etherdevice.h>
  26 #include <linux/kfifo.h>
  27 #include <linux/hrtimer.h>
  28 #include <linux/average.h>
  29 #include <linux/usb.h>
  30 #include <linux/clk.h>
  31 
  32 #include <net/mac80211.h>
  33 
  34 #include "rt2x00debug.h"
  35 #include "rt2x00dump.h"
  36 #include "rt2x00leds.h"
  37 #include "rt2x00reg.h"
  38 #include "rt2x00queue.h"
  39 
  40 /*
  41  * Module information.
  42  */
  43 #define DRV_VERSION     "2.3.0"
  44 #define DRV_PROJECT     "http://rt2x00.serialmonkey.com"
  45 
  46 /* Debug definitions.
  47  * Debug output has to be enabled during compile time.
  48  */
  49 #ifdef CONFIG_RT2X00_DEBUG
  50 #define DEBUG
  51 #endif /* CONFIG_RT2X00_DEBUG */
  52 
  53 /* Utility printing macros
  54  * rt2x00_probe_err is for messages when rt2x00_dev is uninitialized
  55  */
  56 #define rt2x00_probe_err(fmt, ...)                                      \
  57         printk(KERN_ERR KBUILD_MODNAME ": %s: Error - " fmt,            \
  58                __func__, ##__VA_ARGS__)
  59 #define rt2x00_err(dev, fmt, ...)                                       \
  60         wiphy_err_ratelimited((dev)->hw->wiphy, "%s: Error - " fmt,     \
  61                   __func__, ##__VA_ARGS__)
  62 #define rt2x00_warn(dev, fmt, ...)                                      \
  63         wiphy_warn_ratelimited((dev)->hw->wiphy, "%s: Warning - " fmt,  \
  64                    __func__, ##__VA_ARGS__)
  65 #define rt2x00_info(dev, fmt, ...)                                      \
  66         wiphy_info((dev)->hw->wiphy, "%s: Info - " fmt,                 \
  67                    __func__, ##__VA_ARGS__)
  68 
  69 /* Various debug levels */
  70 #define rt2x00_dbg(dev, fmt, ...)                                       \
  71         wiphy_dbg((dev)->hw->wiphy, "%s: Debug - " fmt,                 \
  72                   __func__, ##__VA_ARGS__)
  73 #define rt2x00_eeprom_dbg(dev, fmt, ...)                                \
  74         wiphy_dbg((dev)->hw->wiphy, "%s: EEPROM recovery - " fmt,       \
  75                   __func__, ##__VA_ARGS__)
  76 
  77 /*
  78  * Duration calculations
  79  * The rate variable passed is: 100kbs.
  80  * To convert from bytes to bits we multiply size with 8,
  81  * then the size is multiplied with 10 to make the
  82  * real rate -> rate argument correction.
  83  */
  84 #define GET_DURATION(__size, __rate)    (((__size) * 8 * 10) / (__rate))
  85 #define GET_DURATION_RES(__size, __rate)(((__size) * 8 * 10) % (__rate))
  86 
  87 /*
  88  * Determine the number of L2 padding bytes required between the header and
  89  * the payload.
  90  */
  91 #define L2PAD_SIZE(__hdrlen)    (-(__hdrlen) & 3)
  92 
  93 /*
  94  * Determine the alignment requirement,
  95  * to make sure the 802.11 payload is padded to a 4-byte boundrary
  96  * we must determine the address of the payload and calculate the
  97  * amount of bytes needed to move the data.
  98  */
  99 #define ALIGN_SIZE(__skb, __header) \
 100         (((unsigned long)((__skb)->data + (__header))) & 3)
 101 
 102 /*
 103  * Constants for extra TX headroom for alignment purposes.
 104  */
 105 #define RT2X00_ALIGN_SIZE       4 /* Only whole frame needs alignment */
 106 #define RT2X00_L2PAD_SIZE       8 /* Both header & payload need alignment */
 107 
 108 /*
 109  * Standard timing and size defines.
 110  * These values should follow the ieee80211 specifications.
 111  */
 112 #define ACK_SIZE                14
 113 #define IEEE80211_HEADER        24
 114 #define PLCP                    48
 115 #define BEACON                  100
 116 #define PREAMBLE                144
 117 #define SHORT_PREAMBLE          72
 118 #define SLOT_TIME               20
 119 #define SHORT_SLOT_TIME         9
 120 #define SIFS                    10
 121 #define PIFS                    (SIFS + SLOT_TIME)
 122 #define SHORT_PIFS              (SIFS + SHORT_SLOT_TIME)
 123 #define DIFS                    (PIFS + SLOT_TIME)
 124 #define SHORT_DIFS              (SHORT_PIFS + SHORT_SLOT_TIME)
 125 #define EIFS                    (SIFS + DIFS + \
 126                                   GET_DURATION(IEEE80211_HEADER + ACK_SIZE, 10))
 127 #define SHORT_EIFS              (SIFS + SHORT_DIFS + \
 128                                   GET_DURATION(IEEE80211_HEADER + ACK_SIZE, 10))
 129 
 130 enum rt2x00_chip_intf {
 131         RT2X00_CHIP_INTF_PCI,
 132         RT2X00_CHIP_INTF_PCIE,
 133         RT2X00_CHIP_INTF_USB,
 134         RT2X00_CHIP_INTF_SOC,
 135 };
 136 
 137 /*
 138  * Chipset identification
 139  * The chipset on the device is composed of a RT and RF chip.
 140  * The chipset combination is important for determining device capabilities.
 141  */
 142 struct rt2x00_chip {
 143         u16 rt;
 144 #define RT2460          0x2460
 145 #define RT2560          0x2560
 146 #define RT2570          0x2570
 147 #define RT2661          0x2661
 148 #define RT2573          0x2573
 149 #define RT2860          0x2860  /* 2.4GHz */
 150 #define RT2872          0x2872  /* WSOC */
 151 #define RT2883          0x2883  /* WSOC */
 152 #define RT3070          0x3070
 153 #define RT3071          0x3071
 154 #define RT3090          0x3090  /* 2.4GHz PCIe */
 155 #define RT3290          0x3290
 156 #define RT3352          0x3352  /* WSOC */
 157 #define RT3390          0x3390
 158 #define RT3572          0x3572
 159 #define RT3593          0x3593
 160 #define RT3883          0x3883  /* WSOC */
 161 #define RT5350          0x5350  /* WSOC 2.4GHz */
 162 #define RT5390          0x5390  /* 2.4GHz */
 163 #define RT5392          0x5392  /* 2.4GHz */
 164 #define RT5592          0x5592
 165 #define RT6352          0x6352  /* WSOC 2.4GHz */
 166 
 167         u16 rf;
 168         u16 rev;
 169 
 170         enum rt2x00_chip_intf intf;
 171 };
 172 
 173 /*
 174  * RF register values that belong to a particular channel.
 175  */
 176 struct rf_channel {
 177         int channel;
 178         u32 rf1;
 179         u32 rf2;
 180         u32 rf3;
 181         u32 rf4;
 182 };
 183 
 184 /*
 185  * Channel information structure
 186  */
 187 struct channel_info {
 188         unsigned int flags;
 189 #define GEOGRAPHY_ALLOWED       0x00000001
 190 
 191         short max_power;
 192         short default_power1;
 193         short default_power2;
 194         short default_power3;
 195 };
 196 
 197 /*
 198  * Antenna setup values.
 199  */
 200 struct antenna_setup {
 201         enum antenna rx;
 202         enum antenna tx;
 203         u8 rx_chain_num;
 204         u8 tx_chain_num;
 205 };
 206 
 207 /*
 208  * Quality statistics about the currently active link.
 209  */
 210 struct link_qual {
 211         /*
 212          * Statistics required for Link tuning by driver
 213          * The rssi value is provided by rt2x00lib during the
 214          * link_tuner() callback function.
 215          * The false_cca field is filled during the link_stats()
 216          * callback function and could be used during the
 217          * link_tuner() callback function.
 218          */
 219         int rssi;
 220         int false_cca;
 221 
 222         /*
 223          * VGC levels
 224          * Hardware driver will tune the VGC level during each call
 225          * to the link_tuner() callback function. This vgc_level is
 226          * is determined based on the link quality statistics like
 227          * average RSSI and the false CCA count.
 228          *
 229          * In some cases the drivers need to differentiate between
 230          * the currently "desired" VGC level and the level configured
 231          * in the hardware. The latter is important to reduce the
 232          * number of BBP register reads to reduce register access
 233          * overhead. For this reason we store both values here.
 234          */
 235         u8 vgc_level;
 236         u8 vgc_level_reg;
 237 
 238         /*
 239          * Statistics required for Signal quality calculation.
 240          * These fields might be changed during the link_stats()
 241          * callback function.
 242          */
 243         int rx_success;
 244         int rx_failed;
 245         int tx_success;
 246         int tx_failed;
 247 };
 248 
 249 DECLARE_EWMA(rssi, 10, 8)
 250 
 251 /*
 252  * Antenna settings about the currently active link.
 253  */
 254 struct link_ant {
 255         /*
 256          * Antenna flags
 257          */
 258         unsigned int flags;
 259 #define ANTENNA_RX_DIVERSITY    0x00000001
 260 #define ANTENNA_TX_DIVERSITY    0x00000002
 261 #define ANTENNA_MODE_SAMPLE     0x00000004
 262 
 263         /*
 264          * Currently active TX/RX antenna setup.
 265          * When software diversity is used, this will indicate
 266          * which antenna is actually used at this time.
 267          */
 268         struct antenna_setup active;
 269 
 270         /*
 271          * RSSI history information for the antenna.
 272          * Used to determine when to switch antenna
 273          * when using software diversity.
 274          */
 275         int rssi_history;
 276 
 277         /*
 278          * Current RSSI average of the currently active antenna.
 279          * Similar to the avg_rssi in the link_qual structure
 280          * this value is updated by using the walking average.
 281          */
 282         struct ewma_rssi rssi_ant;
 283 };
 284 
 285 /*
 286  * To optimize the quality of the link we need to store
 287  * the quality of received frames and periodically
 288  * optimize the link.
 289  */
 290 struct link {
 291         /*
 292          * Link tuner counter
 293          * The number of times the link has been tuned
 294          * since the radio has been switched on.
 295          */
 296         u32 count;
 297 
 298         /*
 299          * Quality measurement values.
 300          */
 301         struct link_qual qual;
 302 
 303         /*
 304          * TX/RX antenna setup.
 305          */
 306         struct link_ant ant;
 307 
 308         /*
 309          * Currently active average RSSI value
 310          */
 311         struct ewma_rssi avg_rssi;
 312 
 313         /*
 314          * Work structure for scheduling periodic link tuning.
 315          */
 316         struct delayed_work work;
 317 
 318         /*
 319          * Work structure for scheduling periodic watchdog monitoring.
 320          * This work must be scheduled on the kernel workqueue, while
 321          * all other work structures must be queued on the mac80211
 322          * workqueue. This guarantees that the watchdog can schedule
 323          * other work structures and wait for their completion in order
 324          * to bring the device/driver back into the desired state.
 325          */
 326         struct delayed_work watchdog_work;
 327         unsigned int watchdog_interval;
 328         bool watchdog_disabled;
 329 
 330         /*
 331          * Work structure for scheduling periodic AGC adjustments.
 332          */
 333         struct delayed_work agc_work;
 334 
 335         /*
 336          * Work structure for scheduling periodic VCO calibration.
 337          */
 338         struct delayed_work vco_work;
 339 };
 340 
 341 enum rt2x00_delayed_flags {
 342         DELAYED_UPDATE_BEACON,
 343 };
 344 
 345 /*
 346  * Interface structure
 347  * Per interface configuration details, this structure
 348  * is allocated as the private data for ieee80211_vif.
 349  */
 350 struct rt2x00_intf {
 351         /*
 352          * beacon->skb must be protected with the mutex.
 353          */
 354         struct mutex beacon_skb_mutex;
 355 
 356         /*
 357          * Entry in the beacon queue which belongs to
 358          * this interface. Each interface has its own
 359          * dedicated beacon entry.
 360          */
 361         struct queue_entry *beacon;
 362         bool enable_beacon;
 363 
 364         /*
 365          * Actions that needed rescheduling.
 366          */
 367         unsigned long delayed_flags;
 368 
 369         /*
 370          * Software sequence counter, this is only required
 371          * for hardware which doesn't support hardware
 372          * sequence counting.
 373          */
 374         atomic_t seqno;
 375 };
 376 
 377 static inline struct rt2x00_intf* vif_to_intf(struct ieee80211_vif *vif)
 378 {
 379         return (struct rt2x00_intf *)vif->drv_priv;
 380 }
 381 
 382 /**
 383  * struct hw_mode_spec: Hardware specifications structure
 384  *
 385  * Details about the supported modes, rates and channels
 386  * of a particular chipset. This is used by rt2x00lib
 387  * to build the ieee80211_hw_mode array for mac80211.
 388  *
 389  * @supported_bands: Bitmask contained the supported bands (2.4GHz, 5.2GHz).
 390  * @supported_rates: Rate types which are supported (CCK, OFDM).
 391  * @num_channels: Number of supported channels. This is used as array size
 392  *      for @tx_power_a, @tx_power_bg and @channels.
 393  * @channels: Device/chipset specific channel values (See &struct rf_channel).
 394  * @channels_info: Additional information for channels (See &struct channel_info).
 395  * @ht: Driver HT Capabilities (See &ieee80211_sta_ht_cap).
 396  */
 397 struct hw_mode_spec {
 398         unsigned int supported_bands;
 399 #define SUPPORT_BAND_2GHZ       0x00000001
 400 #define SUPPORT_BAND_5GHZ       0x00000002
 401 
 402         unsigned int supported_rates;
 403 #define SUPPORT_RATE_CCK        0x00000001
 404 #define SUPPORT_RATE_OFDM       0x00000002
 405 
 406         unsigned int num_channels;
 407         const struct rf_channel *channels;
 408         const struct channel_info *channels_info;
 409 
 410         struct ieee80211_sta_ht_cap ht;
 411 };
 412 
 413 /*
 414  * Configuration structure wrapper around the
 415  * mac80211 configuration structure.
 416  * When mac80211 configures the driver, rt2x00lib
 417  * can precalculate values which are equal for all
 418  * rt2x00 drivers. Those values can be stored in here.
 419  */
 420 struct rt2x00lib_conf {
 421         struct ieee80211_conf *conf;
 422 
 423         struct rf_channel rf;
 424         struct channel_info channel;
 425 };
 426 
 427 /*
 428  * Configuration structure for erp settings.
 429  */
 430 struct rt2x00lib_erp {
 431         int short_preamble;
 432         int cts_protection;
 433 
 434         u32 basic_rates;
 435 
 436         int slot_time;
 437 
 438         short sifs;
 439         short pifs;
 440         short difs;
 441         short eifs;
 442 
 443         u16 beacon_int;
 444         u16 ht_opmode;
 445 };
 446 
 447 /*
 448  * Configuration structure for hardware encryption.
 449  */
 450 struct rt2x00lib_crypto {
 451         enum cipher cipher;
 452 
 453         enum set_key_cmd cmd;
 454         const u8 *address;
 455 
 456         u32 bssidx;
 457 
 458         u8 key[16];
 459         u8 tx_mic[8];
 460         u8 rx_mic[8];
 461 
 462         int wcid;
 463 };
 464 
 465 /*
 466  * Configuration structure wrapper around the
 467  * rt2x00 interface configuration handler.
 468  */
 469 struct rt2x00intf_conf {
 470         /*
 471          * Interface type
 472          */
 473         enum nl80211_iftype type;
 474 
 475         /*
 476          * TSF sync value, this is dependent on the operation type.
 477          */
 478         enum tsf_sync sync;
 479 
 480         /*
 481          * The MAC and BSSID addresses are simple array of bytes,
 482          * these arrays are little endian, so when sending the addresses
 483          * to the drivers, copy the it into a endian-signed variable.
 484          *
 485          * Note that all devices (except rt2500usb) have 32 bits
 486          * register word sizes. This means that whatever variable we
 487          * pass _must_ be a multiple of 32 bits. Otherwise the device
 488          * might not accept what we are sending to it.
 489          * This will also make it easier for the driver to write
 490          * the data to the device.
 491          */
 492         __le32 mac[2];
 493         __le32 bssid[2];
 494 };
 495 
 496 /*
 497  * Private structure for storing STA details
 498  * wcid: Wireless Client ID
 499  */
 500 struct rt2x00_sta {
 501         int wcid;
 502 };
 503 
 504 static inline struct rt2x00_sta* sta_to_rt2x00_sta(struct ieee80211_sta *sta)
 505 {
 506         return (struct rt2x00_sta *)sta->drv_priv;
 507 }
 508 
 509 /*
 510  * rt2x00lib callback functions.
 511  */
 512 struct rt2x00lib_ops {
 513         /*
 514          * Interrupt handlers.
 515          */
 516         irq_handler_t irq_handler;
 517 
 518         /*
 519          * TX status tasklet handler.
 520          */
 521         void (*txstatus_tasklet) (unsigned long data);
 522         void (*pretbtt_tasklet) (unsigned long data);
 523         void (*tbtt_tasklet) (unsigned long data);
 524         void (*rxdone_tasklet) (unsigned long data);
 525         void (*autowake_tasklet) (unsigned long data);
 526 
 527         /*
 528          * Device init handlers.
 529          */
 530         int (*probe_hw) (struct rt2x00_dev *rt2x00dev);
 531         char *(*get_firmware_name) (struct rt2x00_dev *rt2x00dev);
 532         int (*check_firmware) (struct rt2x00_dev *rt2x00dev,
 533                                const u8 *data, const size_t len);
 534         int (*load_firmware) (struct rt2x00_dev *rt2x00dev,
 535                               const u8 *data, const size_t len);
 536 
 537         /*
 538          * Device initialization/deinitialization handlers.
 539          */
 540         int (*initialize) (struct rt2x00_dev *rt2x00dev);
 541         void (*uninitialize) (struct rt2x00_dev *rt2x00dev);
 542 
 543         /*
 544          * queue initialization handlers
 545          */
 546         bool (*get_entry_state) (struct queue_entry *entry);
 547         void (*clear_entry) (struct queue_entry *entry);
 548 
 549         /*
 550          * Radio control handlers.
 551          */
 552         int (*set_device_state) (struct rt2x00_dev *rt2x00dev,
 553                                  enum dev_state state);
 554         int (*rfkill_poll) (struct rt2x00_dev *rt2x00dev);
 555         void (*link_stats) (struct rt2x00_dev *rt2x00dev,
 556                             struct link_qual *qual);
 557         void (*reset_tuner) (struct rt2x00_dev *rt2x00dev,
 558                              struct link_qual *qual);
 559         void (*link_tuner) (struct rt2x00_dev *rt2x00dev,
 560                             struct link_qual *qual, const u32 count);
 561         void (*gain_calibration) (struct rt2x00_dev *rt2x00dev);
 562         void (*vco_calibration) (struct rt2x00_dev *rt2x00dev);
 563 
 564         /*
 565          * Data queue handlers.
 566          */
 567         void (*watchdog) (struct rt2x00_dev *rt2x00dev);
 568         void (*start_queue) (struct data_queue *queue);
 569         void (*kick_queue) (struct data_queue *queue);
 570         void (*stop_queue) (struct data_queue *queue);
 571         void (*flush_queue) (struct data_queue *queue, bool drop);
 572         void (*tx_dma_done) (struct queue_entry *entry);
 573 
 574         /*
 575          * TX control handlers
 576          */
 577         void (*write_tx_desc) (struct queue_entry *entry,
 578                                struct txentry_desc *txdesc);
 579         void (*write_tx_data) (struct queue_entry *entry,
 580                                struct txentry_desc *txdesc);
 581         void (*write_beacon) (struct queue_entry *entry,
 582                               struct txentry_desc *txdesc);
 583         void (*clear_beacon) (struct queue_entry *entry);
 584         int (*get_tx_data_len) (struct queue_entry *entry);
 585 
 586         /*
 587          * RX control handlers
 588          */
 589         void (*fill_rxdone) (struct queue_entry *entry,
 590                              struct rxdone_entry_desc *rxdesc);
 591 
 592         /*
 593          * Configuration handlers.
 594          */
 595         int (*config_shared_key) (struct rt2x00_dev *rt2x00dev,
 596                                   struct rt2x00lib_crypto *crypto,
 597                                   struct ieee80211_key_conf *key);
 598         int (*config_pairwise_key) (struct rt2x00_dev *rt2x00dev,
 599                                     struct rt2x00lib_crypto *crypto,
 600                                     struct ieee80211_key_conf *key);
 601         void (*config_filter) (struct rt2x00_dev *rt2x00dev,
 602                                const unsigned int filter_flags);
 603         void (*config_intf) (struct rt2x00_dev *rt2x00dev,
 604                              struct rt2x00_intf *intf,
 605                              struct rt2x00intf_conf *conf,
 606                              const unsigned int flags);
 607 #define CONFIG_UPDATE_TYPE              ( 1 << 1 )
 608 #define CONFIG_UPDATE_MAC               ( 1 << 2 )
 609 #define CONFIG_UPDATE_BSSID             ( 1 << 3 )
 610 
 611         void (*config_erp) (struct rt2x00_dev *rt2x00dev,
 612                             struct rt2x00lib_erp *erp,
 613                             u32 changed);
 614         void (*config_ant) (struct rt2x00_dev *rt2x00dev,
 615                             struct antenna_setup *ant);
 616         void (*config) (struct rt2x00_dev *rt2x00dev,
 617                         struct rt2x00lib_conf *libconf,
 618                         const unsigned int changed_flags);
 619         void (*pre_reset_hw) (struct rt2x00_dev *rt2x00dev);
 620         int (*sta_add) (struct rt2x00_dev *rt2x00dev,
 621                         struct ieee80211_vif *vif,
 622                         struct ieee80211_sta *sta);
 623         int (*sta_remove) (struct rt2x00_dev *rt2x00dev,
 624                            struct ieee80211_sta *sta);
 625 };
 626 
 627 /*
 628  * rt2x00 driver callback operation structure.
 629  */
 630 struct rt2x00_ops {
 631         const char *name;
 632         const unsigned int drv_data_size;
 633         const unsigned int max_ap_intf;
 634         const unsigned int eeprom_size;
 635         const unsigned int rf_size;
 636         const unsigned int tx_queues;
 637         void (*queue_init)(struct data_queue *queue);
 638         const struct rt2x00lib_ops *lib;
 639         const void *drv;
 640         const struct ieee80211_ops *hw;
 641 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
 642         const struct rt2x00debug *debugfs;
 643 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
 644 };
 645 
 646 /*
 647  * rt2x00 state flags
 648  */
 649 enum rt2x00_state_flags {
 650         /*
 651          * Device flags
 652          */
 653         DEVICE_STATE_PRESENT,
 654         DEVICE_STATE_REGISTERED_HW,
 655         DEVICE_STATE_INITIALIZED,
 656         DEVICE_STATE_STARTED,
 657         DEVICE_STATE_ENABLED_RADIO,
 658         DEVICE_STATE_SCANNING,
 659         DEVICE_STATE_FLUSHING,
 660         DEVICE_STATE_RESET,
 661 
 662         /*
 663          * Driver configuration
 664          */
 665         CONFIG_CHANNEL_HT40,
 666         CONFIG_POWERSAVING,
 667         CONFIG_HT_DISABLED,
 668         CONFIG_MONITORING,
 669 
 670         /*
 671          * Mark we currently are sequentially reading TX_STA_FIFO register
 672          * FIXME: this is for only rt2800usb, should go to private data
 673          */
 674         TX_STATUS_READING,
 675 };
 676 
 677 /*
 678  * rt2x00 capability flags
 679  */
 680 enum rt2x00_capability_flags {
 681         /*
 682          * Requirements
 683          */
 684         REQUIRE_FIRMWARE,
 685         REQUIRE_BEACON_GUARD,
 686         REQUIRE_ATIM_QUEUE,
 687         REQUIRE_DMA,
 688         REQUIRE_COPY_IV,
 689         REQUIRE_L2PAD,
 690         REQUIRE_TXSTATUS_FIFO,
 691         REQUIRE_TASKLET_CONTEXT,
 692         REQUIRE_SW_SEQNO,
 693         REQUIRE_HT_TX_DESC,
 694         REQUIRE_PS_AUTOWAKE,
 695         REQUIRE_DELAYED_RFKILL,
 696 
 697         /*
 698          * Capabilities
 699          */
 700         CAPABILITY_HW_BUTTON,
 701         CAPABILITY_HW_CRYPTO,
 702         CAPABILITY_POWER_LIMIT,
 703         CAPABILITY_CONTROL_FILTERS,
 704         CAPABILITY_CONTROL_FILTER_PSPOLL,
 705         CAPABILITY_PRE_TBTT_INTERRUPT,
 706         CAPABILITY_LINK_TUNING,
 707         CAPABILITY_FRAME_TYPE,
 708         CAPABILITY_RF_SEQUENCE,
 709         CAPABILITY_EXTERNAL_LNA_A,
 710         CAPABILITY_EXTERNAL_LNA_BG,
 711         CAPABILITY_DOUBLE_ANTENNA,
 712         CAPABILITY_BT_COEXIST,
 713         CAPABILITY_VCO_RECALIBRATION,
 714         CAPABILITY_EXTERNAL_PA_TX0,
 715         CAPABILITY_EXTERNAL_PA_TX1,
 716         CAPABILITY_RESTART_HW,
 717 };
 718 
 719 /*
 720  * Interface combinations
 721  */
 722 enum {
 723         IF_COMB_AP = 0,
 724         NUM_IF_COMB,
 725 };
 726 
 727 /*
 728  * rt2x00 device structure.
 729  */
 730 struct rt2x00_dev {
 731         /*
 732          * Device structure.
 733          * The structure stored in here depends on the
 734          * system bus (PCI or USB).
 735          * When accessing this variable, the rt2x00dev_{pci,usb}
 736          * macros should be used for correct typecasting.
 737          */
 738         struct device *dev;
 739 
 740         /*
 741          * Callback functions.
 742          */
 743         const struct rt2x00_ops *ops;
 744 
 745         /*
 746          * Driver data.
 747          */
 748         void *drv_data;
 749 
 750         /*
 751          * IEEE80211 control structure.
 752          */
 753         struct ieee80211_hw *hw;
 754         struct ieee80211_supported_band bands[NUM_NL80211_BANDS];
 755         enum nl80211_band curr_band;
 756         int curr_freq;
 757 
 758         /*
 759          * If enabled, the debugfs interface structures
 760          * required for deregistration of debugfs.
 761          */
 762 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
 763         struct rt2x00debug_intf *debugfs_intf;
 764 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
 765 
 766         /*
 767          * LED structure for changing the LED status
 768          * by mac8011 or the kernel.
 769          */
 770 #ifdef CONFIG_RT2X00_LIB_LEDS
 771         struct rt2x00_led led_radio;
 772         struct rt2x00_led led_assoc;
 773         struct rt2x00_led led_qual;
 774         u16 led_mcu_reg;
 775 #endif /* CONFIG_RT2X00_LIB_LEDS */
 776 
 777         /*
 778          * Device state flags.
 779          * In these flags the current status is stored.
 780          * Access to these flags should occur atomically.
 781          */
 782         unsigned long flags;
 783 
 784         /*
 785          * Device capabiltiy flags.
 786          * In these flags the device/driver capabilities are stored.
 787          * Access to these flags should occur non-atomically.
 788          */
 789         unsigned long cap_flags;
 790 
 791         /*
 792          * Device information, Bus IRQ and name (PCI, SoC)
 793          */
 794         int irq;
 795         const char *name;
 796 
 797         /*
 798          * Chipset identification.
 799          */
 800         struct rt2x00_chip chip;
 801 
 802         /*
 803          * hw capability specifications.
 804          */
 805         struct hw_mode_spec spec;
 806 
 807         /*
 808          * This is the default TX/RX antenna setup as indicated
 809          * by the device's EEPROM.
 810          */
 811         struct antenna_setup default_ant;
 812 
 813         /*
 814          * Register pointers
 815          * csr.base: CSR base register address. (PCI)
 816          * csr.cache: CSR cache for usb_control_msg. (USB)
 817          */
 818         union csr {
 819                 void __iomem *base;
 820                 void *cache;
 821         } csr;
 822 
 823         /*
 824          * Mutex to protect register accesses.
 825          * For PCI and USB devices it protects against concurrent indirect
 826          * register access (BBP, RF, MCU) since accessing those
 827          * registers require multiple calls to the CSR registers.
 828          * For USB devices it also protects the csr_cache since that
 829          * field is used for normal CSR access and it cannot support
 830          * multiple callers simultaneously.
 831          */
 832         struct mutex csr_mutex;
 833 
 834         /*
 835          * Mutex to synchronize config and link tuner.
 836          */
 837         struct mutex conf_mutex;
 838         /*
 839          * Current packet filter configuration for the device.
 840          * This contains all currently active FIF_* flags send
 841          * to us by mac80211 during configure_filter().
 842          */
 843         unsigned int packet_filter;
 844 
 845         /*
 846          * Interface details:
 847          *  - Open ap interface count.
 848          *  - Open sta interface count.
 849          *  - Association count.
 850          *  - Beaconing enabled count.
 851          */
 852         unsigned int intf_ap_count;
 853         unsigned int intf_sta_count;
 854         unsigned int intf_associated;
 855         unsigned int intf_beaconing;
 856 
 857         /*
 858          * Interface combinations
 859          */
 860         struct ieee80211_iface_limit if_limits_ap;
 861         struct ieee80211_iface_combination if_combinations[NUM_IF_COMB];
 862 
 863         /*
 864          * Link quality
 865          */
 866         struct link link;
 867 
 868         /*
 869          * EEPROM data.
 870          */
 871         __le16 *eeprom;
 872 
 873         /*
 874          * Active RF register values.
 875          * These are stored here so we don't need
 876          * to read the rf registers and can directly
 877          * use this value instead.
 878          * This field should be accessed by using
 879          * rt2x00_rf_read() and rt2x00_rf_write().
 880          */
 881         u32 *rf;
 882 
 883         /*
 884          * LNA gain
 885          */
 886         short lna_gain;
 887 
 888         /*
 889          * Current TX power value.
 890          */
 891         u16 tx_power;
 892 
 893         /*
 894          * Current retry values.
 895          */
 896         u8 short_retry;
 897         u8 long_retry;
 898 
 899         /*
 900          * Rssi <-> Dbm offset
 901          */
 902         u8 rssi_offset;
 903 
 904         /*
 905          * Frequency offset.
 906          */
 907         u8 freq_offset;
 908 
 909         /*
 910          * Association id.
 911          */
 912         u16 aid;
 913 
 914         /*
 915          * Beacon interval.
 916          */
 917         u16 beacon_int;
 918 
 919         /**
 920          * Timestamp of last received beacon
 921          */
 922         unsigned long last_beacon;
 923 
 924         /*
 925          * Low level statistics which will have
 926          * to be kept up to date while device is running.
 927          */
 928         struct ieee80211_low_level_stats low_level_stats;
 929 
 930         /**
 931          * Work queue for all work which should not be placed
 932          * on the mac80211 workqueue (because of dependencies
 933          * between various work structures).
 934          */
 935         struct workqueue_struct *workqueue;
 936 
 937         /*
 938          * Scheduled work.
 939          * NOTE: intf_work will use ieee80211_iterate_active_interfaces()
 940          * which means it cannot be placed on the hw->workqueue
 941          * due to RTNL locking requirements.
 942          */
 943         struct work_struct intf_work;
 944 
 945         /**
 946          * Scheduled work for TX/RX done handling (USB devices)
 947          */
 948         struct work_struct rxdone_work;
 949         struct work_struct txdone_work;
 950 
 951         /*
 952          * Powersaving work
 953          */
 954         struct delayed_work autowakeup_work;
 955         struct work_struct sleep_work;
 956 
 957         /*
 958          * Data queue arrays for RX, TX, Beacon and ATIM.
 959          */
 960         unsigned int data_queues;
 961         struct data_queue *rx;
 962         struct data_queue *tx;
 963         struct data_queue *bcn;
 964         struct data_queue *atim;
 965 
 966         /*
 967          * Firmware image.
 968          */
 969         const struct firmware *fw;
 970 
 971         /*
 972          * FIFO for storing tx status reports between isr and tasklet.
 973          */
 974         DECLARE_KFIFO_PTR(txstatus_fifo, u32);
 975 
 976         /*
 977          * Timer to ensure tx status reports are read (rt2800usb).
 978          */
 979         struct hrtimer txstatus_timer;
 980 
 981         /*
 982          * Tasklet for processing tx status reports (rt2800pci).
 983          */
 984         struct tasklet_struct txstatus_tasklet;
 985         struct tasklet_struct pretbtt_tasklet;
 986         struct tasklet_struct tbtt_tasklet;
 987         struct tasklet_struct rxdone_tasklet;
 988         struct tasklet_struct autowake_tasklet;
 989 
 990         /*
 991          * Used for VCO periodic calibration.
 992          */
 993         int rf_channel;
 994 
 995         /*
 996          * Protect the interrupt mask register.
 997          */
 998         spinlock_t irqmask_lock;
 999 
1000         /*
1001          * List of BlockAckReq TX entries that need driver BlockAck processing.
1002          */
1003         struct list_head bar_list;
1004         spinlock_t bar_list_lock;
1005 
1006         /* Extra TX headroom required for alignment purposes. */
1007         unsigned int extra_tx_headroom;
1008 
1009         struct usb_anchor *anchor;
1010         unsigned int num_proto_errs;
1011 
1012         /* Clock for System On Chip devices. */
1013         struct clk *clk;
1014 };
1015 
1016 struct rt2x00_bar_list_entry {
1017         struct list_head list;
1018         struct rcu_head head;
1019 
1020         struct queue_entry *entry;
1021         int block_acked;
1022 
1023         /* Relevant parts of the IEEE80211 BAR header */
1024         __u8 ra[6];
1025         __u8 ta[6];
1026         __le16 control;
1027         __le16 start_seq_num;
1028 };
1029 
1030 /*
1031  * Register defines.
1032  * Some registers require multiple attempts before success,
1033  * in those cases REGISTER_BUSY_COUNT attempts should be
1034  * taken with a REGISTER_BUSY_DELAY interval. Due to USB
1035  * bus delays, we do not have to loop so many times to wait
1036  * for valid register value on that bus.
1037  */
1038 #define REGISTER_BUSY_COUNT     100
1039 #define REGISTER_USB_BUSY_COUNT 20
1040 #define REGISTER_BUSY_DELAY     100
1041 
1042 /*
1043  * Generic RF access.
1044  * The RF is being accessed by word index.
1045  */
1046 static inline u32 rt2x00_rf_read(struct rt2x00_dev *rt2x00dev,
1047                                  const unsigned int word)
1048 {
1049         BUG_ON(word < 1 || word > rt2x00dev->ops->rf_size / sizeof(u32));
1050         return rt2x00dev->rf[word - 1];
1051 }
1052 
1053 static inline void rt2x00_rf_write(struct rt2x00_dev *rt2x00dev,
1054                                    const unsigned int word, u32 data)
1055 {
1056         BUG_ON(word < 1 || word > rt2x00dev->ops->rf_size / sizeof(u32));
1057         rt2x00dev->rf[word - 1] = data;
1058 }
1059 
1060 /*
1061  * Generic EEPROM access. The EEPROM is being accessed by word or byte index.
1062  */
1063 static inline void *rt2x00_eeprom_addr(struct rt2x00_dev *rt2x00dev,
1064                                        const unsigned int word)
1065 {
1066         return (void *)&rt2x00dev->eeprom[word];
1067 }
1068 
1069 static inline u16 rt2x00_eeprom_read(struct rt2x00_dev *rt2x00dev,
1070                                      const unsigned int word)
1071 {
1072         return le16_to_cpu(rt2x00dev->eeprom[word]);
1073 }
1074 
1075 static inline void rt2x00_eeprom_write(struct rt2x00_dev *rt2x00dev,
1076                                        const unsigned int word, u16 data)
1077 {
1078         rt2x00dev->eeprom[word] = cpu_to_le16(data);
1079 }
1080 
1081 static inline u8 rt2x00_eeprom_byte(struct rt2x00_dev *rt2x00dev,
1082                                     const unsigned int byte)
1083 {
1084         return *(((u8 *)rt2x00dev->eeprom) + byte);
1085 }
1086 
1087 /*
1088  * Chipset handlers
1089  */
1090 static inline void rt2x00_set_chip(struct rt2x00_dev *rt2x00dev,
1091                                    const u16 rt, const u16 rf, const u16 rev)
1092 {
1093         rt2x00dev->chip.rt = rt;
1094         rt2x00dev->chip.rf = rf;
1095         rt2x00dev->chip.rev = rev;
1096 
1097         rt2x00_info(rt2x00dev, "Chipset detected - rt: %04x, rf: %04x, rev: %04x\n",
1098                     rt2x00dev->chip.rt, rt2x00dev->chip.rf,
1099                     rt2x00dev->chip.rev);
1100 }
1101 
1102 static inline void rt2x00_set_rt(struct rt2x00_dev *rt2x00dev,
1103                                  const u16 rt, const u16 rev)
1104 {
1105         rt2x00dev->chip.rt = rt;
1106         rt2x00dev->chip.rev = rev;
1107 
1108         rt2x00_info(rt2x00dev, "RT chipset %04x, rev %04x detected\n",
1109                     rt2x00dev->chip.rt, rt2x00dev->chip.rev);
1110 }
1111 
1112 static inline void rt2x00_set_rf(struct rt2x00_dev *rt2x00dev, const u16 rf)
1113 {
1114         rt2x00dev->chip.rf = rf;
1115 
1116         rt2x00_info(rt2x00dev, "RF chipset %04x detected\n",
1117                     rt2x00dev->chip.rf);
1118 }
1119 
1120 static inline bool rt2x00_rt(struct rt2x00_dev *rt2x00dev, const u16 rt)
1121 {
1122         return (rt2x00dev->chip.rt == rt);
1123 }
1124 
1125 static inline bool rt2x00_rf(struct rt2x00_dev *rt2x00dev, const u16 rf)
1126 {
1127         return (rt2x00dev->chip.rf == rf);
1128 }
1129 
1130 static inline u16 rt2x00_rev(struct rt2x00_dev *rt2x00dev)
1131 {
1132         return rt2x00dev->chip.rev;
1133 }
1134 
1135 static inline bool rt2x00_rt_rev(struct rt2x00_dev *rt2x00dev,
1136                                  const u16 rt, const u16 rev)
1137 {
1138         return (rt2x00_rt(rt2x00dev, rt) && rt2x00_rev(rt2x00dev) == rev);
1139 }
1140 
1141 static inline bool rt2x00_rt_rev_lt(struct rt2x00_dev *rt2x00dev,
1142                                     const u16 rt, const u16 rev)
1143 {
1144         return (rt2x00_rt(rt2x00dev, rt) && rt2x00_rev(rt2x00dev) < rev);
1145 }
1146 
1147 static inline bool rt2x00_rt_rev_gte(struct rt2x00_dev *rt2x00dev,
1148                                      const u16 rt, const u16 rev)
1149 {
1150         return (rt2x00_rt(rt2x00dev, rt) && rt2x00_rev(rt2x00dev) >= rev);
1151 }
1152 
1153 static inline void rt2x00_set_chip_intf(struct rt2x00_dev *rt2x00dev,
1154                                         enum rt2x00_chip_intf intf)
1155 {
1156         rt2x00dev->chip.intf = intf;
1157 }
1158 
1159 static inline bool rt2x00_intf(struct rt2x00_dev *rt2x00dev,
1160                                enum rt2x00_chip_intf intf)
1161 {
1162         return (rt2x00dev->chip.intf == intf);
1163 }
1164 
1165 static inline bool rt2x00_is_pci(struct rt2x00_dev *rt2x00dev)
1166 {
1167         return rt2x00_intf(rt2x00dev, RT2X00_CHIP_INTF_PCI) ||
1168                rt2x00_intf(rt2x00dev, RT2X00_CHIP_INTF_PCIE);
1169 }
1170 
1171 static inline bool rt2x00_is_pcie(struct rt2x00_dev *rt2x00dev)
1172 {
1173         return rt2x00_intf(rt2x00dev, RT2X00_CHIP_INTF_PCIE);
1174 }
1175 
1176 static inline bool rt2x00_is_usb(struct rt2x00_dev *rt2x00dev)
1177 {
1178         return rt2x00_intf(rt2x00dev, RT2X00_CHIP_INTF_USB);
1179 }
1180 
1181 static inline bool rt2x00_is_soc(struct rt2x00_dev *rt2x00dev)
1182 {
1183         return rt2x00_intf(rt2x00dev, RT2X00_CHIP_INTF_SOC);
1184 }
1185 
1186 /* Helpers for capability flags */
1187 
1188 static inline bool
1189 rt2x00_has_cap_flag(struct rt2x00_dev *rt2x00dev,
1190                     enum rt2x00_capability_flags cap_flag)
1191 {
1192         return test_bit(cap_flag, &rt2x00dev->cap_flags);
1193 }
1194 
1195 static inline bool
1196 rt2x00_has_cap_hw_crypto(struct rt2x00_dev *rt2x00dev)
1197 {
1198         return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_HW_CRYPTO);
1199 }
1200 
1201 static inline bool
1202 rt2x00_has_cap_power_limit(struct rt2x00_dev *rt2x00dev)
1203 {
1204         return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_POWER_LIMIT);
1205 }
1206 
1207 static inline bool
1208 rt2x00_has_cap_control_filters(struct rt2x00_dev *rt2x00dev)
1209 {
1210         return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_CONTROL_FILTERS);
1211 }
1212 
1213 static inline bool
1214 rt2x00_has_cap_control_filter_pspoll(struct rt2x00_dev *rt2x00dev)
1215 {
1216         return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_CONTROL_FILTER_PSPOLL);
1217 }
1218 
1219 static inline bool
1220 rt2x00_has_cap_pre_tbtt_interrupt(struct rt2x00_dev *rt2x00dev)
1221 {
1222         return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_PRE_TBTT_INTERRUPT);
1223 }
1224 
1225 static inline bool
1226 rt2x00_has_cap_link_tuning(struct rt2x00_dev *rt2x00dev)
1227 {
1228         return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_LINK_TUNING);
1229 }
1230 
1231 static inline bool
1232 rt2x00_has_cap_frame_type(struct rt2x00_dev *rt2x00dev)
1233 {
1234         return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_FRAME_TYPE);
1235 }
1236 
1237 static inline bool
1238 rt2x00_has_cap_rf_sequence(struct rt2x00_dev *rt2x00dev)
1239 {
1240         return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_RF_SEQUENCE);
1241 }
1242 
1243 static inline bool
1244 rt2x00_has_cap_external_lna_a(struct rt2x00_dev *rt2x00dev)
1245 {
1246         return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_EXTERNAL_LNA_A);
1247 }
1248 
1249 static inline bool
1250 rt2x00_has_cap_external_lna_bg(struct rt2x00_dev *rt2x00dev)
1251 {
1252         return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_EXTERNAL_LNA_BG);
1253 }
1254 
1255 static inline bool
1256 rt2x00_has_cap_double_antenna(struct rt2x00_dev *rt2x00dev)
1257 {
1258         return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_DOUBLE_ANTENNA);
1259 }
1260 
1261 static inline bool
1262 rt2x00_has_cap_bt_coexist(struct rt2x00_dev *rt2x00dev)
1263 {
1264         return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_BT_COEXIST);
1265 }
1266 
1267 static inline bool
1268 rt2x00_has_cap_vco_recalibration(struct rt2x00_dev *rt2x00dev)
1269 {
1270         return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_VCO_RECALIBRATION);
1271 }
1272 
1273 static inline bool
1274 rt2x00_has_cap_restart_hw(struct rt2x00_dev *rt2x00dev)
1275 {
1276         return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_RESTART_HW);
1277 }
1278 
1279 /**
1280  * rt2x00queue_map_txskb - Map a skb into DMA for TX purposes.
1281  * @entry: Pointer to &struct queue_entry
1282  *
1283  * Returns -ENOMEM if mapping fail, 0 otherwise.
1284  */
1285 int rt2x00queue_map_txskb(struct queue_entry *entry);
1286 
1287 /**
1288  * rt2x00queue_unmap_skb - Unmap a skb from DMA.
1289  * @entry: Pointer to &struct queue_entry
1290  */
1291 void rt2x00queue_unmap_skb(struct queue_entry *entry);
1292 
1293 /**
1294  * rt2x00queue_get_tx_queue - Convert tx queue index to queue pointer
1295  * @rt2x00dev: Pointer to &struct rt2x00_dev.
1296  * @queue: rt2x00 queue index (see &enum data_queue_qid).
1297  *
1298  * Returns NULL for non tx queues.
1299  */
1300 static inline struct data_queue *
1301 rt2x00queue_get_tx_queue(struct rt2x00_dev *rt2x00dev,
1302                          const enum data_queue_qid queue)
1303 {
1304         if (queue < rt2x00dev->ops->tx_queues && rt2x00dev->tx)
1305                 return &rt2x00dev->tx[queue];
1306 
1307         if (queue == QID_ATIM)
1308                 return rt2x00dev->atim;
1309 
1310         return NULL;
1311 }
1312 
1313 /**
1314  * rt2x00queue_get_entry - Get queue entry where the given index points to.
1315  * @queue: Pointer to &struct data_queue from where we obtain the entry.
1316  * @index: Index identifier for obtaining the correct index.
1317  */
1318 struct queue_entry *rt2x00queue_get_entry(struct data_queue *queue,
1319                                           enum queue_index index);
1320 
1321 /**
1322  * rt2x00queue_pause_queue - Pause a data queue
1323  * @queue: Pointer to &struct data_queue.
1324  *
1325  * This function will pause the data queue locally, preventing
1326  * new frames to be added to the queue (while the hardware is
1327  * still allowed to run).
1328  */
1329 void rt2x00queue_pause_queue(struct data_queue *queue);
1330 
1331 /**
1332  * rt2x00queue_unpause_queue - unpause a data queue
1333  * @queue: Pointer to &struct data_queue.
1334  *
1335  * This function will unpause the data queue locally, allowing
1336  * new frames to be added to the queue again.
1337  */
1338 void rt2x00queue_unpause_queue(struct data_queue *queue);
1339 
1340 /**
1341  * rt2x00queue_start_queue - Start a data queue
1342  * @queue: Pointer to &struct data_queue.
1343  *
1344  * This function will start handling all pending frames in the queue.
1345  */
1346 void rt2x00queue_start_queue(struct data_queue *queue);
1347 
1348 /**
1349  * rt2x00queue_stop_queue - Halt a data queue
1350  * @queue: Pointer to &struct data_queue.
1351  *
1352  * This function will stop all pending frames in the queue.
1353  */
1354 void rt2x00queue_stop_queue(struct data_queue *queue);
1355 
1356 /**
1357  * rt2x00queue_flush_queue - Flush a data queue
1358  * @queue: Pointer to &struct data_queue.
1359  * @drop: True to drop all pending frames.
1360  *
1361  * This function will flush the queue. After this call
1362  * the queue is guaranteed to be empty.
1363  */
1364 void rt2x00queue_flush_queue(struct data_queue *queue, bool drop);
1365 
1366 /**
1367  * rt2x00queue_start_queues - Start all data queues
1368  * @rt2x00dev: Pointer to &struct rt2x00_dev.
1369  *
1370  * This function will loop through all available queues to start them
1371  */
1372 void rt2x00queue_start_queues(struct rt2x00_dev *rt2x00dev);
1373 
1374 /**
1375  * rt2x00queue_stop_queues - Halt all data queues
1376  * @rt2x00dev: Pointer to &struct rt2x00_dev.
1377  *
1378  * This function will loop through all available queues to stop
1379  * any pending frames.
1380  */
1381 void rt2x00queue_stop_queues(struct rt2x00_dev *rt2x00dev);
1382 
1383 /**
1384  * rt2x00queue_flush_queues - Flush all data queues
1385  * @rt2x00dev: Pointer to &struct rt2x00_dev.
1386  * @drop: True to drop all pending frames.
1387  *
1388  * This function will loop through all available queues to flush
1389  * any pending frames.
1390  */
1391 void rt2x00queue_flush_queues(struct rt2x00_dev *rt2x00dev, bool drop);
1392 
1393 /*
1394  * Debugfs handlers.
1395  */
1396 /**
1397  * rt2x00debug_dump_frame - Dump a frame to userspace through debugfs.
1398  * @rt2x00dev: Pointer to &struct rt2x00_dev.
1399  * @type: The type of frame that is being dumped.
1400  * @entry: The queue entry containing the frame to be dumped.
1401  */
1402 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
1403 void rt2x00debug_dump_frame(struct rt2x00_dev *rt2x00dev,
1404                             enum rt2x00_dump_type type, struct queue_entry *entry);
1405 #else
1406 static inline void rt2x00debug_dump_frame(struct rt2x00_dev *rt2x00dev,
1407                                           enum rt2x00_dump_type type,
1408                                           struct queue_entry *entry)
1409 {
1410 }
1411 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
1412 
1413 /*
1414  * Utility functions.
1415  */
1416 u32 rt2x00lib_get_bssidx(struct rt2x00_dev *rt2x00dev,
1417                          struct ieee80211_vif *vif);
1418 void rt2x00lib_set_mac_address(struct rt2x00_dev *rt2x00dev, u8 *eeprom_mac_addr);
1419 
1420 /*
1421  * Interrupt context handlers.
1422  */
1423 void rt2x00lib_beacondone(struct rt2x00_dev *rt2x00dev);
1424 void rt2x00lib_pretbtt(struct rt2x00_dev *rt2x00dev);
1425 void rt2x00lib_dmastart(struct queue_entry *entry);
1426 void rt2x00lib_dmadone(struct queue_entry *entry);
1427 void rt2x00lib_txdone(struct queue_entry *entry,
1428                       struct txdone_entry_desc *txdesc);
1429 void rt2x00lib_txdone_nomatch(struct queue_entry *entry,
1430                               struct txdone_entry_desc *txdesc);
1431 void rt2x00lib_txdone_noinfo(struct queue_entry *entry, u32 status);
1432 void rt2x00lib_rxdone(struct queue_entry *entry, gfp_t gfp);
1433 
1434 /*
1435  * mac80211 handlers.
1436  */
1437 void rt2x00mac_tx(struct ieee80211_hw *hw,
1438                   struct ieee80211_tx_control *control,
1439                   struct sk_buff *skb);
1440 int rt2x00mac_start(struct ieee80211_hw *hw);
1441 void rt2x00mac_stop(struct ieee80211_hw *hw);
1442 int rt2x00mac_add_interface(struct ieee80211_hw *hw,
1443                             struct ieee80211_vif *vif);
1444 void rt2x00mac_remove_interface(struct ieee80211_hw *hw,
1445                                 struct ieee80211_vif *vif);
1446 int rt2x00mac_config(struct ieee80211_hw *hw, u32 changed);
1447 void rt2x00mac_configure_filter(struct ieee80211_hw *hw,
1448                                 unsigned int changed_flags,
1449                                 unsigned int *total_flags,
1450                                 u64 multicast);
1451 int rt2x00mac_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta,
1452                       bool set);
1453 #ifdef CONFIG_RT2X00_LIB_CRYPTO
1454 int rt2x00mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
1455                       struct ieee80211_vif *vif, struct ieee80211_sta *sta,
1456                       struct ieee80211_key_conf *key);
1457 #else
1458 #define rt2x00mac_set_key       NULL
1459 #endif /* CONFIG_RT2X00_LIB_CRYPTO */
1460 void rt2x00mac_sw_scan_start(struct ieee80211_hw *hw,
1461                              struct ieee80211_vif *vif,
1462                              const u8 *mac_addr);
1463 void rt2x00mac_sw_scan_complete(struct ieee80211_hw *hw,
1464                                 struct ieee80211_vif *vif);
1465 int rt2x00mac_get_stats(struct ieee80211_hw *hw,
1466                         struct ieee80211_low_level_stats *stats);
1467 void rt2x00mac_bss_info_changed(struct ieee80211_hw *hw,
1468                                 struct ieee80211_vif *vif,
1469                                 struct ieee80211_bss_conf *bss_conf,
1470                                 u32 changes);
1471 int rt2x00mac_conf_tx(struct ieee80211_hw *hw,
1472                       struct ieee80211_vif *vif, u16 queue,
1473                       const struct ieee80211_tx_queue_params *params);
1474 void rt2x00mac_rfkill_poll(struct ieee80211_hw *hw);
1475 void rt2x00mac_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1476                      u32 queues, bool drop);
1477 int rt2x00mac_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant);
1478 int rt2x00mac_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant);
1479 void rt2x00mac_get_ringparam(struct ieee80211_hw *hw,
1480                              u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max);
1481 bool rt2x00mac_tx_frames_pending(struct ieee80211_hw *hw);
1482 
1483 /*
1484  * Driver allocation handlers.
1485  */
1486 int rt2x00lib_probe_dev(struct rt2x00_dev *rt2x00dev);
1487 void rt2x00lib_remove_dev(struct rt2x00_dev *rt2x00dev);
1488 #ifdef CONFIG_PM
1489 int rt2x00lib_suspend(struct rt2x00_dev *rt2x00dev, pm_message_t state);
1490 int rt2x00lib_resume(struct rt2x00_dev *rt2x00dev);
1491 #endif /* CONFIG_PM */
1492 
1493 #endif /* RT2X00_H */
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root/drivers/net/wireless/ralink/rt2x00/rt2x00.h

INCLUDED FROM

DEFINITIONS
