1 /*
2 Copyright (C) 2010 Willow Garage <http://www.willowgarage.com>
3 Copyright (C) 2004 - 2010 Ivo van Doorn <IvDoorn@gmail.com>
4 Copyright (C) 2004 - 2009 Gertjan van Wingerde <gwingerde@gmail.com>
5 <http://rt2x00.serialmonkey.com>
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the
19 Free Software Foundation, Inc.,
20 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
21 */
22
23 /*
24 Module: rt2x00
25 Abstract: rt2x00 global information.
26 */
27
28 #ifndef RT2X00_H
29 #define RT2X00_H
30
31 #include <linux/bitops.h>
32 #include <linux/interrupt.h>
33 #include <linux/skbuff.h>
34 #include <linux/workqueue.h>
35 #include <linux/firmware.h>
36 #include <linux/leds.h>
37 #include <linux/mutex.h>
38 #include <linux/etherdevice.h>
39 #include <linux/input-polldev.h>
40 #include <linux/kfifo.h>
41 #include <linux/hrtimer.h>
42
43 #include <net/mac80211.h>
44
45 #include "rt2x00debug.h"
46 #include "rt2x00dump.h"
47 #include "rt2x00leds.h"
48 #include "rt2x00reg.h"
49 #include "rt2x00queue.h"
50
51 /*
52 * Module information.
53 */
54 #define DRV_VERSION "2.3.0"
55 #define DRV_PROJECT "http://rt2x00.serialmonkey.com"
56
57 /* Debug definitions.
58 * Debug output has to be enabled during compile time.
59 */
60 #ifdef CONFIG_RT2X00_DEBUG
61 #define DEBUG
62 #endif /* CONFIG_RT2X00_DEBUG */
63
64 /* Utility printing macros
65 * rt2x00_probe_err is for messages when rt2x00_dev is uninitialized
66 */
67 #define rt2x00_probe_err(fmt, ...) \
68 printk(KERN_ERR KBUILD_MODNAME ": %s: Error - " fmt, \
69 __func__, ##__VA_ARGS__)
70 #define rt2x00_err(dev, fmt, ...) \
71 wiphy_err((dev)->hw->wiphy, "%s: Error - " fmt, \
72 __func__, ##__VA_ARGS__)
73 #define rt2x00_warn(dev, fmt, ...) \
74 wiphy_warn((dev)->hw->wiphy, "%s: Warning - " fmt, \
75 __func__, ##__VA_ARGS__)
76 #define rt2x00_info(dev, fmt, ...) \
77 wiphy_info((dev)->hw->wiphy, "%s: Info - " fmt, \
78 __func__, ##__VA_ARGS__)
79
80 /* Various debug levels */
81 #define rt2x00_dbg(dev, fmt, ...) \
82 wiphy_dbg((dev)->hw->wiphy, "%s: Debug - " fmt, \
83 __func__, ##__VA_ARGS__)
84 #define rt2x00_eeprom_dbg(dev, fmt, ...) \
85 wiphy_dbg((dev)->hw->wiphy, "%s: EEPROM recovery - " fmt, \
86 __func__, ##__VA_ARGS__)
87
88 /*
89 * Duration calculations
90 * The rate variable passed is: 100kbs.
91 * To convert from bytes to bits we multiply size with 8,
92 * then the size is multiplied with 10 to make the
93 * real rate -> rate argument correction.
94 */
95 #define GET_DURATION(__size, __rate) (((__size) * 8 * 10) / (__rate))
96 #define GET_DURATION_RES(__size, __rate)(((__size) * 8 * 10) % (__rate))
97
98 /*
99 * Determine the number of L2 padding bytes required between the header and
100 * the payload.
101 */
102 #define L2PAD_SIZE(__hdrlen) (-(__hdrlen) & 3)
103
104 /*
105 * Determine the alignment requirement,
106 * to make sure the 802.11 payload is padded to a 4-byte boundrary
107 * we must determine the address of the payload and calculate the
108 * amount of bytes needed to move the data.
109 */
110 #define ALIGN_SIZE(__skb, __header) \
111 ( ((unsigned long)((__skb)->data + (__header))) & 3 )
112
113 /*
114 * Constants for extra TX headroom for alignment purposes.
115 */
116 #define RT2X00_ALIGN_SIZE 4 /* Only whole frame needs alignment */
117 #define RT2X00_L2PAD_SIZE 8 /* Both header & payload need alignment */
118
119 /*
120 * Standard timing and size defines.
121 * These values should follow the ieee80211 specifications.
122 */
123 #define ACK_SIZE 14
124 #define IEEE80211_HEADER 24
125 #define PLCP 48
126 #define BEACON 100
127 #define PREAMBLE 144
128 #define SHORT_PREAMBLE 72
129 #define SLOT_TIME 20
130 #define SHORT_SLOT_TIME 9
131 #define SIFS 10
132 #define PIFS ( SIFS + SLOT_TIME )
133 #define SHORT_PIFS ( SIFS + SHORT_SLOT_TIME )
134 #define DIFS ( PIFS + SLOT_TIME )
135 #define SHORT_DIFS ( SHORT_PIFS + SHORT_SLOT_TIME )
136 #define EIFS ( SIFS + DIFS + \
137 GET_DURATION(IEEE80211_HEADER + ACK_SIZE, 10) )
138 #define SHORT_EIFS ( SIFS + SHORT_DIFS + \
139 GET_DURATION(IEEE80211_HEADER + ACK_SIZE, 10) )
140
141 /*
142 * Structure for average calculation
143 * The avg field contains the actual average value,
144 * but avg_weight is internally used during calculations
145 * to prevent rounding errors.
146 */
147 struct avg_val {
148 int avg;
149 int avg_weight;
150 };
151
152 enum rt2x00_chip_intf {
153 RT2X00_CHIP_INTF_PCI,
154 RT2X00_CHIP_INTF_PCIE,
155 RT2X00_CHIP_INTF_USB,
156 RT2X00_CHIP_INTF_SOC,
157 };
158
159 /*
160 * Chipset identification
161 * The chipset on the device is composed of a RT and RF chip.
162 * The chipset combination is important for determining device capabilities.
163 */
164 struct rt2x00_chip {
165 u16 rt;
166 #define RT2460 0x2460
167 #define RT2560 0x2560
168 #define RT2570 0x2570
169 #define RT2661 0x2661
170 #define RT2573 0x2573
171 #define RT2860 0x2860 /* 2.4GHz */
172 #define RT2872 0x2872 /* WSOC */
173 #define RT2883 0x2883 /* WSOC */
174 #define RT3070 0x3070
175 #define RT3071 0x3071
176 #define RT3090 0x3090 /* 2.4GHz PCIe */
177 #define RT3290 0x3290
178 #define RT3352 0x3352 /* WSOC */
179 #define RT3390 0x3390
180 #define RT3572 0x3572
181 #define RT3593 0x3593
182 #define RT3883 0x3883 /* WSOC */
183 #define RT5390 0x5390 /* 2.4GHz */
184 #define RT5392 0x5392 /* 2.4GHz */
185 #define RT5592 0x5592
186
187 u16 rf;
188 u16 rev;
189
190 enum rt2x00_chip_intf intf;
191 };
192
193 /*
194 * RF register values that belong to a particular channel.
195 */
196 struct rf_channel {
197 int channel;
198 u32 rf1;
199 u32 rf2;
200 u32 rf3;
201 u32 rf4;
202 };
203
204 /*
205 * Channel information structure
206 */
207 struct channel_info {
208 unsigned int flags;
209 #define GEOGRAPHY_ALLOWED 0x00000001
210
211 short max_power;
212 short default_power1;
213 short default_power2;
214 };
215
216 /*
217 * Antenna setup values.
218 */
219 struct antenna_setup {
220 enum antenna rx;
221 enum antenna tx;
222 u8 rx_chain_num;
223 u8 tx_chain_num;
224 };
225
226 /*
227 * Quality statistics about the currently active link.
228 */
229 struct link_qual {
230 /*
231 * Statistics required for Link tuning by driver
232 * The rssi value is provided by rt2x00lib during the
233 * link_tuner() callback function.
234 * The false_cca field is filled during the link_stats()
235 * callback function and could be used during the
236 * link_tuner() callback function.
237 */
238 int rssi;
239 int false_cca;
240
241 /*
242 * VGC levels
243 * Hardware driver will tune the VGC level during each call
244 * to the link_tuner() callback function. This vgc_level is
245 * is determined based on the link quality statistics like
246 * average RSSI and the false CCA count.
247 *
248 * In some cases the drivers need to differentiate between
249 * the currently "desired" VGC level and the level configured
250 * in the hardware. The latter is important to reduce the
251 * number of BBP register reads to reduce register access
252 * overhead. For this reason we store both values here.
253 */
254 u8 vgc_level;
255 u8 vgc_level_reg;
256
257 /*
258 * Statistics required for Signal quality calculation.
259 * These fields might be changed during the link_stats()
260 * callback function.
261 */
262 int rx_success;
263 int rx_failed;
264 int tx_success;
265 int tx_failed;
266 };
267
268 /*
269 * Antenna settings about the currently active link.
270 */
271 struct link_ant {
272 /*
273 * Antenna flags
274 */
275 unsigned int flags;
276 #define ANTENNA_RX_DIVERSITY 0x00000001
277 #define ANTENNA_TX_DIVERSITY 0x00000002
278 #define ANTENNA_MODE_SAMPLE 0x00000004
279
280 /*
281 * Currently active TX/RX antenna setup.
282 * When software diversity is used, this will indicate
283 * which antenna is actually used at this time.
284 */
285 struct antenna_setup active;
286
287 /*
288 * RSSI history information for the antenna.
289 * Used to determine when to switch antenna
290 * when using software diversity.
291 */
292 int rssi_history;
293
294 /*
295 * Current RSSI average of the currently active antenna.
296 * Similar to the avg_rssi in the link_qual structure
297 * this value is updated by using the walking average.
298 */
299 struct avg_val rssi_ant;
300 };
301
302 /*
303 * To optimize the quality of the link we need to store
304 * the quality of received frames and periodically
305 * optimize the link.
306 */
307 struct link {
308 /*
309 * Link tuner counter
310 * The number of times the link has been tuned
311 * since the radio has been switched on.
312 */
313 u32 count;
314
315 /*
316 * Quality measurement values.
317 */
318 struct link_qual qual;
319
320 /*
321 * TX/RX antenna setup.
322 */
323 struct link_ant ant;
324
325 /*
326 * Currently active average RSSI value
327 */
328 struct avg_val avg_rssi;
329
330 /*
331 * Work structure for scheduling periodic link tuning.
332 */
333 struct delayed_work work;
334
335 /*
336 * Work structure for scheduling periodic watchdog monitoring.
337 * This work must be scheduled on the kernel workqueue, while
338 * all other work structures must be queued on the mac80211
339 * workqueue. This guarantees that the watchdog can schedule
340 * other work structures and wait for their completion in order
341 * to bring the device/driver back into the desired state.
342 */
343 struct delayed_work watchdog_work;
344
345 /*
346 * Work structure for scheduling periodic AGC adjustments.
347 */
348 struct delayed_work agc_work;
349
350 /*
351 * Work structure for scheduling periodic VCO calibration.
352 */
353 struct delayed_work vco_work;
354 };
355
356 enum rt2x00_delayed_flags {
357 DELAYED_UPDATE_BEACON,
358 };
359
360 /*
361 * Interface structure
362 * Per interface configuration details, this structure
363 * is allocated as the private data for ieee80211_vif.
364 */
365 struct rt2x00_intf {
366 /*
367 * beacon->skb must be protected with the mutex.
368 */
369 struct mutex beacon_skb_mutex;
370
371 /*
372 * Entry in the beacon queue which belongs to
373 * this interface. Each interface has its own
374 * dedicated beacon entry.
375 */
376 struct queue_entry *beacon;
377 bool enable_beacon;
378
379 /*
380 * Actions that needed rescheduling.
381 */
382 unsigned long delayed_flags;
383
384 /*
385 * Software sequence counter, this is only required
386 * for hardware which doesn't support hardware
387 * sequence counting.
388 */
389 atomic_t seqno;
390 };
391
vif_to_intf(struct ieee80211_vif * vif)392 static inline struct rt2x00_intf* vif_to_intf(struct ieee80211_vif *vif)
393 {
394 return (struct rt2x00_intf *)vif->drv_priv;
395 }
396
397 /**
398 * struct hw_mode_spec: Hardware specifications structure
399 *
400 * Details about the supported modes, rates and channels
401 * of a particular chipset. This is used by rt2x00lib
402 * to build the ieee80211_hw_mode array for mac80211.
403 *
404 * @supported_bands: Bitmask contained the supported bands (2.4GHz, 5.2GHz).
405 * @supported_rates: Rate types which are supported (CCK, OFDM).
406 * @num_channels: Number of supported channels. This is used as array size
407 * for @tx_power_a, @tx_power_bg and @channels.
408 * @channels: Device/chipset specific channel values (See &struct rf_channel).
409 * @channels_info: Additional information for channels (See &struct channel_info).
410 * @ht: Driver HT Capabilities (See &ieee80211_sta_ht_cap).
411 */
412 struct hw_mode_spec {
413 unsigned int supported_bands;
414 #define SUPPORT_BAND_2GHZ 0x00000001
415 #define SUPPORT_BAND_5GHZ 0x00000002
416
417 unsigned int supported_rates;
418 #define SUPPORT_RATE_CCK 0x00000001
419 #define SUPPORT_RATE_OFDM 0x00000002
420
421 unsigned int num_channels;
422 const struct rf_channel *channels;
423 const struct channel_info *channels_info;
424
425 struct ieee80211_sta_ht_cap ht;
426 };
427
428 /*
429 * Configuration structure wrapper around the
430 * mac80211 configuration structure.
431 * When mac80211 configures the driver, rt2x00lib
432 * can precalculate values which are equal for all
433 * rt2x00 drivers. Those values can be stored in here.
434 */
435 struct rt2x00lib_conf {
436 struct ieee80211_conf *conf;
437
438 struct rf_channel rf;
439 struct channel_info channel;
440 };
441
442 /*
443 * Configuration structure for erp settings.
444 */
445 struct rt2x00lib_erp {
446 int short_preamble;
447 int cts_protection;
448
449 u32 basic_rates;
450
451 int slot_time;
452
453 short sifs;
454 short pifs;
455 short difs;
456 short eifs;
457
458 u16 beacon_int;
459 u16 ht_opmode;
460 };
461
462 /*
463 * Configuration structure for hardware encryption.
464 */
465 struct rt2x00lib_crypto {
466 enum cipher cipher;
467
468 enum set_key_cmd cmd;
469 const u8 *address;
470
471 u32 bssidx;
472
473 u8 key[16];
474 u8 tx_mic[8];
475 u8 rx_mic[8];
476
477 int wcid;
478 };
479
480 /*
481 * Configuration structure wrapper around the
482 * rt2x00 interface configuration handler.
483 */
484 struct rt2x00intf_conf {
485 /*
486 * Interface type
487 */
488 enum nl80211_iftype type;
489
490 /*
491 * TSF sync value, this is dependent on the operation type.
492 */
493 enum tsf_sync sync;
494
495 /*
496 * The MAC and BSSID addresses are simple array of bytes,
497 * these arrays are little endian, so when sending the addresses
498 * to the drivers, copy the it into a endian-signed variable.
499 *
500 * Note that all devices (except rt2500usb) have 32 bits
501 * register word sizes. This means that whatever variable we
502 * pass _must_ be a multiple of 32 bits. Otherwise the device
503 * might not accept what we are sending to it.
504 * This will also make it easier for the driver to write
505 * the data to the device.
506 */
507 __le32 mac[2];
508 __le32 bssid[2];
509 };
510
511 /*
512 * Private structure for storing STA details
513 * wcid: Wireless Client ID
514 */
515 struct rt2x00_sta {
516 int wcid;
517 };
518
sta_to_rt2x00_sta(struct ieee80211_sta * sta)519 static inline struct rt2x00_sta* sta_to_rt2x00_sta(struct ieee80211_sta *sta)
520 {
521 return (struct rt2x00_sta *)sta->drv_priv;
522 }
523
524 /*
525 * rt2x00lib callback functions.
526 */
527 struct rt2x00lib_ops {
528 /*
529 * Interrupt handlers.
530 */
531 irq_handler_t irq_handler;
532
533 /*
534 * TX status tasklet handler.
535 */
536 void (*txstatus_tasklet) (unsigned long data);
537 void (*pretbtt_tasklet) (unsigned long data);
538 void (*tbtt_tasklet) (unsigned long data);
539 void (*rxdone_tasklet) (unsigned long data);
540 void (*autowake_tasklet) (unsigned long data);
541
542 /*
543 * Device init handlers.
544 */
545 int (*probe_hw) (struct rt2x00_dev *rt2x00dev);
546 char *(*get_firmware_name) (struct rt2x00_dev *rt2x00dev);
547 int (*check_firmware) (struct rt2x00_dev *rt2x00dev,
548 const u8 *data, const size_t len);
549 int (*load_firmware) (struct rt2x00_dev *rt2x00dev,
550 const u8 *data, const size_t len);
551
552 /*
553 * Device initialization/deinitialization handlers.
554 */
555 int (*initialize) (struct rt2x00_dev *rt2x00dev);
556 void (*uninitialize) (struct rt2x00_dev *rt2x00dev);
557
558 /*
559 * queue initialization handlers
560 */
561 bool (*get_entry_state) (struct queue_entry *entry);
562 void (*clear_entry) (struct queue_entry *entry);
563
564 /*
565 * Radio control handlers.
566 */
567 int (*set_device_state) (struct rt2x00_dev *rt2x00dev,
568 enum dev_state state);
569 int (*rfkill_poll) (struct rt2x00_dev *rt2x00dev);
570 void (*link_stats) (struct rt2x00_dev *rt2x00dev,
571 struct link_qual *qual);
572 void (*reset_tuner) (struct rt2x00_dev *rt2x00dev,
573 struct link_qual *qual);
574 void (*link_tuner) (struct rt2x00_dev *rt2x00dev,
575 struct link_qual *qual, const u32 count);
576 void (*gain_calibration) (struct rt2x00_dev *rt2x00dev);
577 void (*vco_calibration) (struct rt2x00_dev *rt2x00dev);
578
579 /*
580 * Data queue handlers.
581 */
582 void (*watchdog) (struct rt2x00_dev *rt2x00dev);
583 void (*start_queue) (struct data_queue *queue);
584 void (*kick_queue) (struct data_queue *queue);
585 void (*stop_queue) (struct data_queue *queue);
586 void (*flush_queue) (struct data_queue *queue, bool drop);
587 void (*tx_dma_done) (struct queue_entry *entry);
588
589 /*
590 * TX control handlers
591 */
592 void (*write_tx_desc) (struct queue_entry *entry,
593 struct txentry_desc *txdesc);
594 void (*write_tx_data) (struct queue_entry *entry,
595 struct txentry_desc *txdesc);
596 void (*write_beacon) (struct queue_entry *entry,
597 struct txentry_desc *txdesc);
598 void (*clear_beacon) (struct queue_entry *entry);
599 int (*get_tx_data_len) (struct queue_entry *entry);
600
601 /*
602 * RX control handlers
603 */
604 void (*fill_rxdone) (struct queue_entry *entry,
605 struct rxdone_entry_desc *rxdesc);
606
607 /*
608 * Configuration handlers.
609 */
610 int (*config_shared_key) (struct rt2x00_dev *rt2x00dev,
611 struct rt2x00lib_crypto *crypto,
612 struct ieee80211_key_conf *key);
613 int (*config_pairwise_key) (struct rt2x00_dev *rt2x00dev,
614 struct rt2x00lib_crypto *crypto,
615 struct ieee80211_key_conf *key);
616 void (*config_filter) (struct rt2x00_dev *rt2x00dev,
617 const unsigned int filter_flags);
618 void (*config_intf) (struct rt2x00_dev *rt2x00dev,
619 struct rt2x00_intf *intf,
620 struct rt2x00intf_conf *conf,
621 const unsigned int flags);
622 #define CONFIG_UPDATE_TYPE ( 1 << 1 )
623 #define CONFIG_UPDATE_MAC ( 1 << 2 )
624 #define CONFIG_UPDATE_BSSID ( 1 << 3 )
625
626 void (*config_erp) (struct rt2x00_dev *rt2x00dev,
627 struct rt2x00lib_erp *erp,
628 u32 changed);
629 void (*config_ant) (struct rt2x00_dev *rt2x00dev,
630 struct antenna_setup *ant);
631 void (*config) (struct rt2x00_dev *rt2x00dev,
632 struct rt2x00lib_conf *libconf,
633 const unsigned int changed_flags);
634 int (*sta_add) (struct rt2x00_dev *rt2x00dev,
635 struct ieee80211_vif *vif,
636 struct ieee80211_sta *sta);
637 int (*sta_remove) (struct rt2x00_dev *rt2x00dev,
638 int wcid);
639 };
640
641 /*
642 * rt2x00 driver callback operation structure.
643 */
644 struct rt2x00_ops {
645 const char *name;
646 const unsigned int drv_data_size;
647 const unsigned int max_ap_intf;
648 const unsigned int eeprom_size;
649 const unsigned int rf_size;
650 const unsigned int tx_queues;
651 const unsigned int extra_tx_headroom;
652 const struct data_queue_desc *rx;
653 const struct data_queue_desc *tx;
654 const struct data_queue_desc *bcn;
655 const struct data_queue_desc *atim;
656 const struct rt2x00lib_ops *lib;
657 const void *drv;
658 const struct ieee80211_ops *hw;
659 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
660 const struct rt2x00debug *debugfs;
661 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
662 };
663
664 /*
665 * rt2x00 state flags
666 */
667 enum rt2x00_state_flags {
668 /*
669 * Device flags
670 */
671 DEVICE_STATE_PRESENT,
672 DEVICE_STATE_REGISTERED_HW,
673 DEVICE_STATE_INITIALIZED,
674 DEVICE_STATE_STARTED,
675 DEVICE_STATE_ENABLED_RADIO,
676 DEVICE_STATE_SCANNING,
677
678 /*
679 * Driver configuration
680 */
681 CONFIG_CHANNEL_HT40,
682 CONFIG_POWERSAVING,
683 CONFIG_HT_DISABLED,
684 CONFIG_QOS_DISABLED,
685
686 /*
687 * Mark we currently are sequentially reading TX_STA_FIFO register
688 * FIXME: this is for only rt2800usb, should go to private data
689 */
690 TX_STATUS_READING,
691 };
692
693 /*
694 * rt2x00 capability flags
695 */
696 enum rt2x00_capability_flags {
697 /*
698 * Requirements
699 */
700 REQUIRE_FIRMWARE,
701 REQUIRE_BEACON_GUARD,
702 REQUIRE_ATIM_QUEUE,
703 REQUIRE_DMA,
704 REQUIRE_COPY_IV,
705 REQUIRE_L2PAD,
706 REQUIRE_TXSTATUS_FIFO,
707 REQUIRE_TASKLET_CONTEXT,
708 REQUIRE_SW_SEQNO,
709 REQUIRE_HT_TX_DESC,
710 REQUIRE_PS_AUTOWAKE,
711
712 /*
713 * Capabilities
714 */
715 CAPABILITY_HW_BUTTON,
716 CAPABILITY_HW_CRYPTO,
717 CAPABILITY_POWER_LIMIT,
718 CAPABILITY_CONTROL_FILTERS,
719 CAPABILITY_CONTROL_FILTER_PSPOLL,
720 CAPABILITY_PRE_TBTT_INTERRUPT,
721 CAPABILITY_LINK_TUNING,
722 CAPABILITY_FRAME_TYPE,
723 CAPABILITY_RF_SEQUENCE,
724 CAPABILITY_EXTERNAL_LNA_A,
725 CAPABILITY_EXTERNAL_LNA_BG,
726 CAPABILITY_DOUBLE_ANTENNA,
727 CAPABILITY_BT_COEXIST,
728 CAPABILITY_VCO_RECALIBRATION,
729 };
730
731 /*
732 * Interface combinations
733 */
734 enum {
735 IF_COMB_AP = 0,
736 NUM_IF_COMB,
737 };
738
739 /*
740 * rt2x00 device structure.
741 */
742 struct rt2x00_dev {
743 /*
744 * Device structure.
745 * The structure stored in here depends on the
746 * system bus (PCI or USB).
747 * When accessing this variable, the rt2x00dev_{pci,usb}
748 * macros should be used for correct typecasting.
749 */
750 struct device *dev;
751
752 /*
753 * Callback functions.
754 */
755 const struct rt2x00_ops *ops;
756
757 /*
758 * Driver data.
759 */
760 void *drv_data;
761
762 /*
763 * IEEE80211 control structure.
764 */
765 struct ieee80211_hw *hw;
766 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
767 enum ieee80211_band curr_band;
768 int curr_freq;
769
770 /*
771 * If enabled, the debugfs interface structures
772 * required for deregistration of debugfs.
773 */
774 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
775 struct rt2x00debug_intf *debugfs_intf;
776 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
777
778 /*
779 * LED structure for changing the LED status
780 * by mac8011 or the kernel.
781 */
782 #ifdef CONFIG_RT2X00_LIB_LEDS
783 struct rt2x00_led led_radio;
784 struct rt2x00_led led_assoc;
785 struct rt2x00_led led_qual;
786 u16 led_mcu_reg;
787 #endif /* CONFIG_RT2X00_LIB_LEDS */
788
789 /*
790 * Device state flags.
791 * In these flags the current status is stored.
792 * Access to these flags should occur atomically.
793 */
794 unsigned long flags;
795
796 /*
797 * Device capabiltiy flags.
798 * In these flags the device/driver capabilities are stored.
799 * Access to these flags should occur non-atomically.
800 */
801 unsigned long cap_flags;
802
803 /*
804 * Device information, Bus IRQ and name (PCI, SoC)
805 */
806 int irq;
807 const char *name;
808
809 /*
810 * Chipset identification.
811 */
812 struct rt2x00_chip chip;
813
814 /*
815 * hw capability specifications.
816 */
817 struct hw_mode_spec spec;
818
819 /*
820 * This is the default TX/RX antenna setup as indicated
821 * by the device's EEPROM.
822 */
823 struct antenna_setup default_ant;
824
825 /*
826 * Register pointers
827 * csr.base: CSR base register address. (PCI)
828 * csr.cache: CSR cache for usb_control_msg. (USB)
829 */
830 union csr {
831 void __iomem *base;
832 void *cache;
833 } csr;
834
835 /*
836 * Mutex to protect register accesses.
837 * For PCI and USB devices it protects against concurrent indirect
838 * register access (BBP, RF, MCU) since accessing those
839 * registers require multiple calls to the CSR registers.
840 * For USB devices it also protects the csr_cache since that
841 * field is used for normal CSR access and it cannot support
842 * multiple callers simultaneously.
843 */
844 struct mutex csr_mutex;
845
846 /*
847 * Current packet filter configuration for the device.
848 * This contains all currently active FIF_* flags send
849 * to us by mac80211 during configure_filter().
850 */
851 unsigned int packet_filter;
852
853 /*
854 * Interface details:
855 * - Open ap interface count.
856 * - Open sta interface count.
857 * - Association count.
858 * - Beaconing enabled count.
859 */
860 unsigned int intf_ap_count;
861 unsigned int intf_sta_count;
862 unsigned int intf_associated;
863 unsigned int intf_beaconing;
864
865 /*
866 * Interface combinations
867 */
868 struct ieee80211_iface_limit if_limits_ap;
869 struct ieee80211_iface_combination if_combinations[NUM_IF_COMB];
870
871 /*
872 * Link quality
873 */
874 struct link link;
875
876 /*
877 * EEPROM data.
878 */
879 __le16 *eeprom;
880
881 /*
882 * Active RF register values.
883 * These are stored here so we don't need
884 * to read the rf registers and can directly
885 * use this value instead.
886 * This field should be accessed by using
887 * rt2x00_rf_read() and rt2x00_rf_write().
888 */
889 u32 *rf;
890
891 /*
892 * LNA gain
893 */
894 short lna_gain;
895
896 /*
897 * Current TX power value.
898 */
899 u16 tx_power;
900
901 /*
902 * Current retry values.
903 */
904 u8 short_retry;
905 u8 long_retry;
906
907 /*
908 * Rssi <-> Dbm offset
909 */
910 u8 rssi_offset;
911
912 /*
913 * Frequency offset.
914 */
915 u8 freq_offset;
916
917 /*
918 * Association id.
919 */
920 u16 aid;
921
922 /*
923 * Beacon interval.
924 */
925 u16 beacon_int;
926
927 /**
928 * Timestamp of last received beacon
929 */
930 unsigned long last_beacon;
931
932 /*
933 * Low level statistics which will have
934 * to be kept up to date while device is running.
935 */
936 struct ieee80211_low_level_stats low_level_stats;
937
938 /**
939 * Work queue for all work which should not be placed
940 * on the mac80211 workqueue (because of dependencies
941 * between various work structures).
942 */
943 struct workqueue_struct *workqueue;
944
945 /*
946 * Scheduled work.
947 * NOTE: intf_work will use ieee80211_iterate_active_interfaces()
948 * which means it cannot be placed on the hw->workqueue
949 * due to RTNL locking requirements.
950 */
951 struct work_struct intf_work;
952
953 /**
954 * Scheduled work for TX/RX done handling (USB devices)
955 */
956 struct work_struct rxdone_work;
957 struct work_struct txdone_work;
958
959 /*
960 * Powersaving work
961 */
962 struct delayed_work autowakeup_work;
963 struct work_struct sleep_work;
964
965 /*
966 * Data queue arrays for RX, TX, Beacon and ATIM.
967 */
968 unsigned int data_queues;
969 struct data_queue *rx;
970 struct data_queue *tx;
971 struct data_queue *bcn;
972 struct data_queue *atim;
973
974 /*
975 * Firmware image.
976 */
977 const struct firmware *fw;
978
979 /*
980 * FIFO for storing tx status reports between isr and tasklet.
981 */
982 DECLARE_KFIFO_PTR(txstatus_fifo, u32);
983
984 /*
985 * Timer to ensure tx status reports are read (rt2800usb).
986 */
987 struct hrtimer txstatus_timer;
988
989 /*
990 * Tasklet for processing tx status reports (rt2800pci).
991 */
992 struct tasklet_struct txstatus_tasklet;
993 struct tasklet_struct pretbtt_tasklet;
994 struct tasklet_struct tbtt_tasklet;
995 struct tasklet_struct rxdone_tasklet;
996 struct tasklet_struct autowake_tasklet;
997
998 /*
999 * Used for VCO periodic calibration.
1000 */
1001 int rf_channel;
1002
1003 /*
1004 * Protect the interrupt mask register.
1005 */
1006 spinlock_t irqmask_lock;
1007
1008 /*
1009 * List of BlockAckReq TX entries that need driver BlockAck processing.
1010 */
1011 struct list_head bar_list;
1012 spinlock_t bar_list_lock;
1013 };
1014
1015 struct rt2x00_bar_list_entry {
1016 struct list_head list;
1017 struct rcu_head head;
1018
1019 struct queue_entry *entry;
1020 int block_acked;
1021
1022 /* Relevant parts of the IEEE80211 BAR header */
1023 __u8 ra[6];
1024 __u8 ta[6];
1025 __le16 control;
1026 __le16 start_seq_num;
1027 };
1028
1029 /*
1030 * Register defines.
1031 * Some registers require multiple attempts before success,
1032 * in those cases REGISTER_BUSY_COUNT attempts should be
1033 * taken with a REGISTER_BUSY_DELAY interval.
1034 */
1035 #define REGISTER_BUSY_COUNT 100
1036 #define REGISTER_BUSY_DELAY 100
1037
1038 /*
1039 * Generic RF access.
1040 * The RF is being accessed by word index.
1041 */
rt2x00_rf_read(struct rt2x00_dev * rt2x00dev,const unsigned int word,u32 * data)1042 static inline void rt2x00_rf_read(struct rt2x00_dev *rt2x00dev,
1043 const unsigned int word, u32 *data)
1044 {
1045 BUG_ON(word < 1 || word > rt2x00dev->ops->rf_size / sizeof(u32));
1046 *data = rt2x00dev->rf[word - 1];
1047 }
1048
rt2x00_rf_write(struct rt2x00_dev * rt2x00dev,const unsigned int word,u32 data)1049 static inline void rt2x00_rf_write(struct rt2x00_dev *rt2x00dev,
1050 const unsigned int word, u32 data)
1051 {
1052 BUG_ON(word < 1 || word > rt2x00dev->ops->rf_size / sizeof(u32));
1053 rt2x00dev->rf[word - 1] = data;
1054 }
1055
1056 /*
1057 * Generic EEPROM access. The EEPROM is being accessed by word or byte index.
1058 */
rt2x00_eeprom_addr(struct rt2x00_dev * rt2x00dev,const unsigned int word)1059 static inline void *rt2x00_eeprom_addr(struct rt2x00_dev *rt2x00dev,
1060 const unsigned int word)
1061 {
1062 return (void *)&rt2x00dev->eeprom[word];
1063 }
1064
rt2x00_eeprom_read(struct rt2x00_dev * rt2x00dev,const unsigned int word,u16 * data)1065 static inline void rt2x00_eeprom_read(struct rt2x00_dev *rt2x00dev,
1066 const unsigned int word, u16 *data)
1067 {
1068 *data = le16_to_cpu(rt2x00dev->eeprom[word]);
1069 }
1070
rt2x00_eeprom_write(struct rt2x00_dev * rt2x00dev,const unsigned int word,u16 data)1071 static inline void rt2x00_eeprom_write(struct rt2x00_dev *rt2x00dev,
1072 const unsigned int word, u16 data)
1073 {
1074 rt2x00dev->eeprom[word] = cpu_to_le16(data);
1075 }
1076
rt2x00_eeprom_byte(struct rt2x00_dev * rt2x00dev,const unsigned int byte)1077 static inline u8 rt2x00_eeprom_byte(struct rt2x00_dev *rt2x00dev,
1078 const unsigned int byte)
1079 {
1080 return *(((u8 *)rt2x00dev->eeprom) + byte);
1081 }
1082
1083 /*
1084 * Chipset handlers
1085 */
rt2x00_set_chip(struct rt2x00_dev * rt2x00dev,const u16 rt,const u16 rf,const u16 rev)1086 static inline void rt2x00_set_chip(struct rt2x00_dev *rt2x00dev,
1087 const u16 rt, const u16 rf, const u16 rev)
1088 {
1089 rt2x00dev->chip.rt = rt;
1090 rt2x00dev->chip.rf = rf;
1091 rt2x00dev->chip.rev = rev;
1092
1093 rt2x00_info(rt2x00dev, "Chipset detected - rt: %04x, rf: %04x, rev: %04x\n",
1094 rt2x00dev->chip.rt, rt2x00dev->chip.rf,
1095 rt2x00dev->chip.rev);
1096 }
1097
rt2x00_set_rt(struct rt2x00_dev * rt2x00dev,const u16 rt,const u16 rev)1098 static inline void rt2x00_set_rt(struct rt2x00_dev *rt2x00dev,
1099 const u16 rt, const u16 rev)
1100 {
1101 rt2x00dev->chip.rt = rt;
1102 rt2x00dev->chip.rev = rev;
1103
1104 rt2x00_info(rt2x00dev, "RT chipset %04x, rev %04x detected\n",
1105 rt2x00dev->chip.rt, rt2x00dev->chip.rev);
1106 }
1107
rt2x00_set_rf(struct rt2x00_dev * rt2x00dev,const u16 rf)1108 static inline void rt2x00_set_rf(struct rt2x00_dev *rt2x00dev, const u16 rf)
1109 {
1110 rt2x00dev->chip.rf = rf;
1111
1112 rt2x00_info(rt2x00dev, "RF chipset %04x detected\n",
1113 rt2x00dev->chip.rf);
1114 }
1115
rt2x00_rt(struct rt2x00_dev * rt2x00dev,const u16 rt)1116 static inline bool rt2x00_rt(struct rt2x00_dev *rt2x00dev, const u16 rt)
1117 {
1118 return (rt2x00dev->chip.rt == rt);
1119 }
1120
rt2x00_rf(struct rt2x00_dev * rt2x00dev,const u16 rf)1121 static inline bool rt2x00_rf(struct rt2x00_dev *rt2x00dev, const u16 rf)
1122 {
1123 return (rt2x00dev->chip.rf == rf);
1124 }
1125
rt2x00_rev(struct rt2x00_dev * rt2x00dev)1126 static inline u16 rt2x00_rev(struct rt2x00_dev *rt2x00dev)
1127 {
1128 return rt2x00dev->chip.rev;
1129 }
1130
rt2x00_rt_rev(struct rt2x00_dev * rt2x00dev,const u16 rt,const u16 rev)1131 static inline bool rt2x00_rt_rev(struct rt2x00_dev *rt2x00dev,
1132 const u16 rt, const u16 rev)
1133 {
1134 return (rt2x00_rt(rt2x00dev, rt) && rt2x00_rev(rt2x00dev) == rev);
1135 }
1136
rt2x00_rt_rev_lt(struct rt2x00_dev * rt2x00dev,const u16 rt,const u16 rev)1137 static inline bool rt2x00_rt_rev_lt(struct rt2x00_dev *rt2x00dev,
1138 const u16 rt, const u16 rev)
1139 {
1140 return (rt2x00_rt(rt2x00dev, rt) && rt2x00_rev(rt2x00dev) < rev);
1141 }
1142
rt2x00_rt_rev_gte(struct rt2x00_dev * rt2x00dev,const u16 rt,const u16 rev)1143 static inline bool rt2x00_rt_rev_gte(struct rt2x00_dev *rt2x00dev,
1144 const u16 rt, const u16 rev)
1145 {
1146 return (rt2x00_rt(rt2x00dev, rt) && rt2x00_rev(rt2x00dev) >= rev);
1147 }
1148
rt2x00_set_chip_intf(struct rt2x00_dev * rt2x00dev,enum rt2x00_chip_intf intf)1149 static inline void rt2x00_set_chip_intf(struct rt2x00_dev *rt2x00dev,
1150 enum rt2x00_chip_intf intf)
1151 {
1152 rt2x00dev->chip.intf = intf;
1153 }
1154
rt2x00_intf(struct rt2x00_dev * rt2x00dev,enum rt2x00_chip_intf intf)1155 static inline bool rt2x00_intf(struct rt2x00_dev *rt2x00dev,
1156 enum rt2x00_chip_intf intf)
1157 {
1158 return (rt2x00dev->chip.intf == intf);
1159 }
1160
rt2x00_is_pci(struct rt2x00_dev * rt2x00dev)1161 static inline bool rt2x00_is_pci(struct rt2x00_dev *rt2x00dev)
1162 {
1163 return rt2x00_intf(rt2x00dev, RT2X00_CHIP_INTF_PCI) ||
1164 rt2x00_intf(rt2x00dev, RT2X00_CHIP_INTF_PCIE);
1165 }
1166
rt2x00_is_pcie(struct rt2x00_dev * rt2x00dev)1167 static inline bool rt2x00_is_pcie(struct rt2x00_dev *rt2x00dev)
1168 {
1169 return rt2x00_intf(rt2x00dev, RT2X00_CHIP_INTF_PCIE);
1170 }
1171
rt2x00_is_usb(struct rt2x00_dev * rt2x00dev)1172 static inline bool rt2x00_is_usb(struct rt2x00_dev *rt2x00dev)
1173 {
1174 return rt2x00_intf(rt2x00dev, RT2X00_CHIP_INTF_USB);
1175 }
1176
rt2x00_is_soc(struct rt2x00_dev * rt2x00dev)1177 static inline bool rt2x00_is_soc(struct rt2x00_dev *rt2x00dev)
1178 {
1179 return rt2x00_intf(rt2x00dev, RT2X00_CHIP_INTF_SOC);
1180 }
1181
1182 /**
1183 * rt2x00queue_map_txskb - Map a skb into DMA for TX purposes.
1184 * @entry: Pointer to &struct queue_entry
1185 *
1186 * Returns -ENOMEM if mapping fail, 0 otherwise.
1187 */
1188 int rt2x00queue_map_txskb(struct queue_entry *entry);
1189
1190 /**
1191 * rt2x00queue_unmap_skb - Unmap a skb from DMA.
1192 * @entry: Pointer to &struct queue_entry
1193 */
1194 void rt2x00queue_unmap_skb(struct queue_entry *entry);
1195
1196 /**
1197 * rt2x00queue_get_tx_queue - Convert tx queue index to queue pointer
1198 * @rt2x00dev: Pointer to &struct rt2x00_dev.
1199 * @queue: rt2x00 queue index (see &enum data_queue_qid).
1200 *
1201 * Returns NULL for non tx queues.
1202 */
1203 static inline struct data_queue *
rt2x00queue_get_tx_queue(struct rt2x00_dev * rt2x00dev,const enum data_queue_qid queue)1204 rt2x00queue_get_tx_queue(struct rt2x00_dev *rt2x00dev,
1205 const enum data_queue_qid queue)
1206 {
1207 if (queue < rt2x00dev->ops->tx_queues && rt2x00dev->tx)
1208 return &rt2x00dev->tx[queue];
1209
1210 if (queue == QID_ATIM)
1211 return rt2x00dev->atim;
1212
1213 return NULL;
1214 }
1215
1216 /**
1217 * rt2x00queue_get_entry - Get queue entry where the given index points to.
1218 * @queue: Pointer to &struct data_queue from where we obtain the entry.
1219 * @index: Index identifier for obtaining the correct index.
1220 */
1221 struct queue_entry *rt2x00queue_get_entry(struct data_queue *queue,
1222 enum queue_index index);
1223
1224 /**
1225 * rt2x00queue_pause_queue - Pause a data queue
1226 * @queue: Pointer to &struct data_queue.
1227 *
1228 * This function will pause the data queue locally, preventing
1229 * new frames to be added to the queue (while the hardware is
1230 * still allowed to run).
1231 */
1232 void rt2x00queue_pause_queue(struct data_queue *queue);
1233
1234 /**
1235 * rt2x00queue_unpause_queue - unpause a data queue
1236 * @queue: Pointer to &struct data_queue.
1237 *
1238 * This function will unpause the data queue locally, allowing
1239 * new frames to be added to the queue again.
1240 */
1241 void rt2x00queue_unpause_queue(struct data_queue *queue);
1242
1243 /**
1244 * rt2x00queue_start_queue - Start a data queue
1245 * @queue: Pointer to &struct data_queue.
1246 *
1247 * This function will start handling all pending frames in the queue.
1248 */
1249 void rt2x00queue_start_queue(struct data_queue *queue);
1250
1251 /**
1252 * rt2x00queue_stop_queue - Halt a data queue
1253 * @queue: Pointer to &struct data_queue.
1254 *
1255 * This function will stop all pending frames in the queue.
1256 */
1257 void rt2x00queue_stop_queue(struct data_queue *queue);
1258
1259 /**
1260 * rt2x00queue_flush_queue - Flush a data queue
1261 * @queue: Pointer to &struct data_queue.
1262 * @drop: True to drop all pending frames.
1263 *
1264 * This function will flush the queue. After this call
1265 * the queue is guaranteed to be empty.
1266 */
1267 void rt2x00queue_flush_queue(struct data_queue *queue, bool drop);
1268
1269 /**
1270 * rt2x00queue_start_queues - Start all data queues
1271 * @rt2x00dev: Pointer to &struct rt2x00_dev.
1272 *
1273 * This function will loop through all available queues to start them
1274 */
1275 void rt2x00queue_start_queues(struct rt2x00_dev *rt2x00dev);
1276
1277 /**
1278 * rt2x00queue_stop_queues - Halt all data queues
1279 * @rt2x00dev: Pointer to &struct rt2x00_dev.
1280 *
1281 * This function will loop through all available queues to stop
1282 * any pending frames.
1283 */
1284 void rt2x00queue_stop_queues(struct rt2x00_dev *rt2x00dev);
1285
1286 /**
1287 * rt2x00queue_flush_queues - Flush all data queues
1288 * @rt2x00dev: Pointer to &struct rt2x00_dev.
1289 * @drop: True to drop all pending frames.
1290 *
1291 * This function will loop through all available queues to flush
1292 * any pending frames.
1293 */
1294 void rt2x00queue_flush_queues(struct rt2x00_dev *rt2x00dev, bool drop);
1295
1296 /*
1297 * Debugfs handlers.
1298 */
1299 /**
1300 * rt2x00debug_dump_frame - Dump a frame to userspace through debugfs.
1301 * @rt2x00dev: Pointer to &struct rt2x00_dev.
1302 * @type: The type of frame that is being dumped.
1303 * @skb: The skb containing the frame to be dumped.
1304 */
1305 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
1306 void rt2x00debug_dump_frame(struct rt2x00_dev *rt2x00dev,
1307 enum rt2x00_dump_type type, struct sk_buff *skb);
1308 #else
rt2x00debug_dump_frame(struct rt2x00_dev * rt2x00dev,enum rt2x00_dump_type type,struct sk_buff * skb)1309 static inline void rt2x00debug_dump_frame(struct rt2x00_dev *rt2x00dev,
1310 enum rt2x00_dump_type type,
1311 struct sk_buff *skb)
1312 {
1313 }
1314 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
1315
1316 /*
1317 * Utility functions.
1318 */
1319 u32 rt2x00lib_get_bssidx(struct rt2x00_dev *rt2x00dev,
1320 struct ieee80211_vif *vif);
1321
1322 /*
1323 * Interrupt context handlers.
1324 */
1325 void rt2x00lib_beacondone(struct rt2x00_dev *rt2x00dev);
1326 void rt2x00lib_pretbtt(struct rt2x00_dev *rt2x00dev);
1327 void rt2x00lib_dmastart(struct queue_entry *entry);
1328 void rt2x00lib_dmadone(struct queue_entry *entry);
1329 void rt2x00lib_txdone(struct queue_entry *entry,
1330 struct txdone_entry_desc *txdesc);
1331 void rt2x00lib_txdone_noinfo(struct queue_entry *entry, u32 status);
1332 void rt2x00lib_rxdone(struct queue_entry *entry, gfp_t gfp);
1333
1334 /*
1335 * mac80211 handlers.
1336 */
1337 void rt2x00mac_tx(struct ieee80211_hw *hw,
1338 struct ieee80211_tx_control *control,
1339 struct sk_buff *skb);
1340 int rt2x00mac_start(struct ieee80211_hw *hw);
1341 void rt2x00mac_stop(struct ieee80211_hw *hw);
1342 int rt2x00mac_add_interface(struct ieee80211_hw *hw,
1343 struct ieee80211_vif *vif);
1344 void rt2x00mac_remove_interface(struct ieee80211_hw *hw,
1345 struct ieee80211_vif *vif);
1346 int rt2x00mac_config(struct ieee80211_hw *hw, u32 changed);
1347 void rt2x00mac_configure_filter(struct ieee80211_hw *hw,
1348 unsigned int changed_flags,
1349 unsigned int *total_flags,
1350 u64 multicast);
1351 int rt2x00mac_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta,
1352 bool set);
1353 #ifdef CONFIG_RT2X00_LIB_CRYPTO
1354 int rt2x00mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
1355 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
1356 struct ieee80211_key_conf *key);
1357 #else
1358 #define rt2x00mac_set_key NULL
1359 #endif /* CONFIG_RT2X00_LIB_CRYPTO */
1360 int rt2x00mac_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1361 struct ieee80211_sta *sta);
1362 int rt2x00mac_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1363 struct ieee80211_sta *sta);
1364 void rt2x00mac_sw_scan_start(struct ieee80211_hw *hw);
1365 void rt2x00mac_sw_scan_complete(struct ieee80211_hw *hw);
1366 int rt2x00mac_get_stats(struct ieee80211_hw *hw,
1367 struct ieee80211_low_level_stats *stats);
1368 void rt2x00mac_bss_info_changed(struct ieee80211_hw *hw,
1369 struct ieee80211_vif *vif,
1370 struct ieee80211_bss_conf *bss_conf,
1371 u32 changes);
1372 int rt2x00mac_conf_tx(struct ieee80211_hw *hw,
1373 struct ieee80211_vif *vif, u16 queue,
1374 const struct ieee80211_tx_queue_params *params);
1375 void rt2x00mac_rfkill_poll(struct ieee80211_hw *hw);
1376 void rt2x00mac_flush(struct ieee80211_hw *hw, u32 queues, bool drop);
1377 int rt2x00mac_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant);
1378 int rt2x00mac_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant);
1379 void rt2x00mac_get_ringparam(struct ieee80211_hw *hw,
1380 u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max);
1381 bool rt2x00mac_tx_frames_pending(struct ieee80211_hw *hw);
1382
1383 /*
1384 * Driver allocation handlers.
1385 */
1386 int rt2x00lib_probe_dev(struct rt2x00_dev *rt2x00dev);
1387 void rt2x00lib_remove_dev(struct rt2x00_dev *rt2x00dev);
1388 #ifdef CONFIG_PM
1389 int rt2x00lib_suspend(struct rt2x00_dev *rt2x00dev, pm_message_t state);
1390 int rt2x00lib_resume(struct rt2x00_dev *rt2x00dev);
1391 #endif /* CONFIG_PM */
1392
1393 #endif /* RT2X00_H */
1394