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 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 | * Information structure for channel survey. |
186 | */ |
187 | struct rt2x00_chan_survey { |
188 | u64 time_idle; |
189 | u64 time_busy; |
190 | u64 time_ext_busy; |
191 | }; |
192 | |
193 | /* |
194 | * Channel information structure |
195 | */ |
196 | struct channel_info { |
197 | unsigned int flags; |
198 | #define GEOGRAPHY_ALLOWED 0x00000001 |
199 | |
200 | short max_power; |
201 | short default_power1; |
202 | short default_power2; |
203 | short default_power3; |
204 | }; |
205 | |
206 | /* |
207 | * Antenna setup values. |
208 | */ |
209 | struct antenna_setup { |
210 | enum antenna rx; |
211 | enum antenna tx; |
212 | u8 rx_chain_num; |
213 | u8 tx_chain_num; |
214 | }; |
215 | |
216 | /* |
217 | * Quality statistics about the currently active link. |
218 | */ |
219 | struct link_qual { |
220 | /* |
221 | * Statistics required for Link tuning by driver |
222 | * The rssi value is provided by rt2x00lib during the |
223 | * link_tuner() callback function. |
224 | * The false_cca field is filled during the link_stats() |
225 | * callback function and could be used during the |
226 | * link_tuner() callback function. |
227 | */ |
228 | int ; |
229 | int false_cca; |
230 | |
231 | /* |
232 | * VGC levels |
233 | * Hardware driver will tune the VGC level during each call |
234 | * to the link_tuner() callback function. This vgc_level is |
235 | * determined based on the link quality statistics like |
236 | * average RSSI and the false CCA count. |
237 | * |
238 | * In some cases the drivers need to differentiate between |
239 | * the currently "desired" VGC level and the level configured |
240 | * in the hardware. The latter is important to reduce the |
241 | * number of BBP register reads to reduce register access |
242 | * overhead. For this reason we store both values here. |
243 | */ |
244 | u8 vgc_level; |
245 | u8 vgc_level_reg; |
246 | |
247 | /* |
248 | * Statistics required for Signal quality calculation. |
249 | * These fields might be changed during the link_stats() |
250 | * callback function. |
251 | */ |
252 | int rx_success; |
253 | int rx_failed; |
254 | int tx_success; |
255 | int tx_failed; |
256 | }; |
257 | |
258 | DECLARE_EWMA(rssi, 10, 8) |
259 | |
260 | /* |
261 | * Antenna settings about the currently active link. |
262 | */ |
263 | struct link_ant { |
264 | /* |
265 | * Antenna flags |
266 | */ |
267 | unsigned int flags; |
268 | #define ANTENNA_RX_DIVERSITY 0x00000001 |
269 | #define ANTENNA_TX_DIVERSITY 0x00000002 |
270 | #define ANTENNA_MODE_SAMPLE 0x00000004 |
271 | |
272 | /* |
273 | * Currently active TX/RX antenna setup. |
274 | * When software diversity is used, this will indicate |
275 | * which antenna is actually used at this time. |
276 | */ |
277 | struct antenna_setup active; |
278 | |
279 | /* |
280 | * RSSI history information for the antenna. |
281 | * Used to determine when to switch antenna |
282 | * when using software diversity. |
283 | */ |
284 | int ; |
285 | |
286 | /* |
287 | * Current RSSI average of the currently active antenna. |
288 | * Similar to the avg_rssi in the link_qual structure |
289 | * this value is updated by using the walking average. |
290 | */ |
291 | struct ewma_rssi ; |
292 | }; |
293 | |
294 | /* |
295 | * To optimize the quality of the link we need to store |
296 | * the quality of received frames and periodically |
297 | * optimize the link. |
298 | */ |
299 | struct link { |
300 | /* |
301 | * Link tuner counter |
302 | * The number of times the link has been tuned |
303 | * since the radio has been switched on. |
304 | */ |
305 | u32 count; |
306 | |
307 | /* |
308 | * Quality measurement values. |
309 | */ |
310 | struct link_qual qual; |
311 | |
312 | /* |
313 | * TX/RX antenna setup. |
314 | */ |
315 | struct link_ant ant; |
316 | |
317 | /* |
318 | * Currently active average RSSI value |
319 | */ |
320 | struct ewma_rssi ; |
321 | |
322 | /* |
323 | * Work structure for scheduling periodic link tuning. |
324 | */ |
325 | struct delayed_work work; |
326 | |
327 | /* |
328 | * Work structure for scheduling periodic watchdog monitoring. |
329 | * This work must be scheduled on the kernel workqueue, while |
330 | * all other work structures must be queued on the mac80211 |
331 | * workqueue. This guarantees that the watchdog can schedule |
332 | * other work structures and wait for their completion in order |
333 | * to bring the device/driver back into the desired state. |
334 | */ |
335 | struct delayed_work watchdog_work; |
336 | unsigned int watchdog_interval; |
337 | unsigned int watchdog; |
338 | |
339 | /* |
340 | * Work structure for scheduling periodic AGC adjustments. |
341 | */ |
342 | struct delayed_work agc_work; |
343 | |
344 | /* |
345 | * Work structure for scheduling periodic VCO calibration. |
346 | */ |
347 | struct delayed_work vco_work; |
348 | }; |
349 | |
350 | enum rt2x00_delayed_flags { |
351 | DELAYED_UPDATE_BEACON, |
352 | }; |
353 | |
354 | /* |
355 | * Interface structure |
356 | * Per interface configuration details, this structure |
357 | * is allocated as the private data for ieee80211_vif. |
358 | */ |
359 | struct rt2x00_intf { |
360 | /* |
361 | * beacon->skb must be protected with the mutex. |
362 | */ |
363 | struct mutex beacon_skb_mutex; |
364 | |
365 | /* |
366 | * Entry in the beacon queue which belongs to |
367 | * this interface. Each interface has its own |
368 | * dedicated beacon entry. |
369 | */ |
370 | struct queue_entry *beacon; |
371 | bool enable_beacon; |
372 | |
373 | /* |
374 | * Actions that needed rescheduling. |
375 | */ |
376 | unsigned long delayed_flags; |
377 | |
378 | /* |
379 | * Software sequence counter, this is only required |
380 | * for hardware which doesn't support hardware |
381 | * sequence counting. |
382 | */ |
383 | atomic_t seqno; |
384 | }; |
385 | |
386 | static inline struct rt2x00_intf* vif_to_intf(struct ieee80211_vif *vif) |
387 | { |
388 | return (struct rt2x00_intf *)vif->drv_priv; |
389 | } |
390 | |
391 | /** |
392 | * struct hw_mode_spec: Hardware specifications structure |
393 | * |
394 | * Details about the supported modes, rates and channels |
395 | * of a particular chipset. This is used by rt2x00lib |
396 | * to build the ieee80211_hw_mode array for mac80211. |
397 | * |
398 | * @supported_bands: Bitmask contained the supported bands (2.4GHz, 5.2GHz). |
399 | * @supported_rates: Rate types which are supported (CCK, OFDM). |
400 | * @num_channels: Number of supported channels. This is used as array size |
401 | * for @tx_power_a, @tx_power_bg and @channels. |
402 | * @channels: Device/chipset specific channel values (See &struct rf_channel). |
403 | * @channels_info: Additional information for channels (See &struct channel_info). |
404 | * @ht: Driver HT Capabilities (See &ieee80211_sta_ht_cap). |
405 | */ |
406 | struct hw_mode_spec { |
407 | unsigned int supported_bands; |
408 | #define SUPPORT_BAND_2GHZ 0x00000001 |
409 | #define SUPPORT_BAND_5GHZ 0x00000002 |
410 | |
411 | unsigned int supported_rates; |
412 | #define SUPPORT_RATE_CCK 0x00000001 |
413 | #define SUPPORT_RATE_OFDM 0x00000002 |
414 | |
415 | unsigned int num_channels; |
416 | const struct rf_channel *channels; |
417 | const struct channel_info *channels_info; |
418 | |
419 | struct ieee80211_sta_ht_cap ht; |
420 | }; |
421 | |
422 | /* |
423 | * Configuration structure wrapper around the |
424 | * mac80211 configuration structure. |
425 | * When mac80211 configures the driver, rt2x00lib |
426 | * can precalculate values which are equal for all |
427 | * rt2x00 drivers. Those values can be stored in here. |
428 | */ |
429 | struct rt2x00lib_conf { |
430 | struct ieee80211_conf *conf; |
431 | |
432 | struct rf_channel rf; |
433 | struct channel_info channel; |
434 | }; |
435 | |
436 | /* |
437 | * Configuration structure for erp settings. |
438 | */ |
439 | struct rt2x00lib_erp { |
440 | int short_preamble; |
441 | int cts_protection; |
442 | |
443 | u32 basic_rates; |
444 | |
445 | int slot_time; |
446 | |
447 | short sifs; |
448 | short pifs; |
449 | short difs; |
450 | short eifs; |
451 | |
452 | u16 beacon_int; |
453 | u16 ht_opmode; |
454 | }; |
455 | |
456 | /* |
457 | * Configuration structure for hardware encryption. |
458 | */ |
459 | struct rt2x00lib_crypto { |
460 | enum cipher cipher; |
461 | |
462 | enum set_key_cmd cmd; |
463 | const u8 *address; |
464 | |
465 | u32 bssidx; |
466 | |
467 | u8 key[16]; |
468 | u8 tx_mic[8]; |
469 | u8 rx_mic[8]; |
470 | |
471 | int wcid; |
472 | }; |
473 | |
474 | /* |
475 | * Configuration structure wrapper around the |
476 | * rt2x00 interface configuration handler. |
477 | */ |
478 | struct rt2x00intf_conf { |
479 | /* |
480 | * Interface type |
481 | */ |
482 | enum nl80211_iftype type; |
483 | |
484 | /* |
485 | * TSF sync value, this is dependent on the operation type. |
486 | */ |
487 | enum tsf_sync sync; |
488 | |
489 | /* |
490 | * The MAC and BSSID addresses are simple array of bytes, |
491 | * these arrays are little endian, so when sending the addresses |
492 | * to the drivers, copy the it into a endian-signed variable. |
493 | * |
494 | * Note that all devices (except rt2500usb) have 32 bits |
495 | * register word sizes. This means that whatever variable we |
496 | * pass _must_ be a multiple of 32 bits. Otherwise the device |
497 | * might not accept what we are sending to it. |
498 | * This will also make it easier for the driver to write |
499 | * the data to the device. |
500 | */ |
501 | __le32 mac[2]; |
502 | __le32 bssid[2]; |
503 | }; |
504 | |
505 | /* |
506 | * Private structure for storing STA details |
507 | * wcid: Wireless Client ID |
508 | */ |
509 | struct rt2x00_sta { |
510 | int wcid; |
511 | }; |
512 | |
513 | static inline struct rt2x00_sta* sta_to_rt2x00_sta(struct ieee80211_sta *sta) |
514 | { |
515 | return (struct rt2x00_sta *)sta->drv_priv; |
516 | } |
517 | |
518 | /* |
519 | * rt2x00lib callback functions. |
520 | */ |
521 | struct rt2x00lib_ops { |
522 | /* |
523 | * Interrupt handlers. |
524 | */ |
525 | irq_handler_t irq_handler; |
526 | |
527 | /* |
528 | * TX status tasklet handler. |
529 | */ |
530 | void (*txstatus_tasklet) (struct tasklet_struct *t); |
531 | void (*pretbtt_tasklet) (struct tasklet_struct *t); |
532 | void (*tbtt_tasklet) (struct tasklet_struct *t); |
533 | void (*rxdone_tasklet) (struct tasklet_struct *t); |
534 | void (*autowake_tasklet) (struct tasklet_struct *t); |
535 | |
536 | /* |
537 | * Device init handlers. |
538 | */ |
539 | int (*probe_hw) (struct rt2x00_dev *rt2x00dev); |
540 | char *(*get_firmware_name) (struct rt2x00_dev *rt2x00dev); |
541 | int (*check_firmware) (struct rt2x00_dev *rt2x00dev, |
542 | const u8 *data, const size_t len); |
543 | int (*load_firmware) (struct rt2x00_dev *rt2x00dev, |
544 | const u8 *data, const size_t len); |
545 | |
546 | /* |
547 | * Device initialization/deinitialization handlers. |
548 | */ |
549 | int (*initialize) (struct rt2x00_dev *rt2x00dev); |
550 | void (*uninitialize) (struct rt2x00_dev *rt2x00dev); |
551 | |
552 | /* |
553 | * queue initialization handlers |
554 | */ |
555 | bool (*get_entry_state) (struct queue_entry *entry); |
556 | void (*clear_entry) (struct queue_entry *entry); |
557 | |
558 | /* |
559 | * Radio control handlers. |
560 | */ |
561 | int (*set_device_state) (struct rt2x00_dev *rt2x00dev, |
562 | enum dev_state state); |
563 | int (*rfkill_poll) (struct rt2x00_dev *rt2x00dev); |
564 | void (*link_stats) (struct rt2x00_dev *rt2x00dev, |
565 | struct link_qual *qual); |
566 | void (*reset_tuner) (struct rt2x00_dev *rt2x00dev, |
567 | struct link_qual *qual); |
568 | void (*link_tuner) (struct rt2x00_dev *rt2x00dev, |
569 | struct link_qual *qual, const u32 count); |
570 | void (*gain_calibration) (struct rt2x00_dev *rt2x00dev); |
571 | void (*vco_calibration) (struct rt2x00_dev *rt2x00dev); |
572 | |
573 | /* |
574 | * Data queue handlers. |
575 | */ |
576 | void (*watchdog) (struct rt2x00_dev *rt2x00dev); |
577 | void (*start_queue) (struct data_queue *queue); |
578 | void (*kick_queue) (struct data_queue *queue); |
579 | void (*stop_queue) (struct data_queue *queue); |
580 | void (*flush_queue) (struct data_queue *queue, bool drop); |
581 | void (*tx_dma_done) (struct queue_entry *entry); |
582 | |
583 | /* |
584 | * TX control handlers |
585 | */ |
586 | void (*write_tx_desc) (struct queue_entry *entry, |
587 | struct txentry_desc *txdesc); |
588 | void (*write_tx_data) (struct queue_entry *entry, |
589 | struct txentry_desc *txdesc); |
590 | void (*write_beacon) (struct queue_entry *entry, |
591 | struct txentry_desc *txdesc); |
592 | void (*clear_beacon) (struct queue_entry *entry); |
593 | int (*get_tx_data_len) (struct queue_entry *entry); |
594 | |
595 | /* |
596 | * RX control handlers |
597 | */ |
598 | void (*fill_rxdone) (struct queue_entry *entry, |
599 | struct rxdone_entry_desc *rxdesc); |
600 | |
601 | /* |
602 | * Configuration handlers. |
603 | */ |
604 | int (*config_shared_key) (struct rt2x00_dev *rt2x00dev, |
605 | struct rt2x00lib_crypto *crypto, |
606 | struct ieee80211_key_conf *key); |
607 | int (*config_pairwise_key) (struct rt2x00_dev *rt2x00dev, |
608 | struct rt2x00lib_crypto *crypto, |
609 | struct ieee80211_key_conf *key); |
610 | void (*config_filter) (struct rt2x00_dev *rt2x00dev, |
611 | const unsigned int filter_flags); |
612 | void (*config_intf) (struct rt2x00_dev *rt2x00dev, |
613 | struct rt2x00_intf *intf, |
614 | struct rt2x00intf_conf *conf, |
615 | const unsigned int flags); |
616 | #define CONFIG_UPDATE_TYPE ( 1 << 1 ) |
617 | #define CONFIG_UPDATE_MAC ( 1 << 2 ) |
618 | #define CONFIG_UPDATE_BSSID ( 1 << 3 ) |
619 | |
620 | void (*config_erp) (struct rt2x00_dev *rt2x00dev, |
621 | struct rt2x00lib_erp *erp, |
622 | u32 changed); |
623 | void (*config_ant) (struct rt2x00_dev *rt2x00dev, |
624 | struct antenna_setup *ant); |
625 | void (*config) (struct rt2x00_dev *rt2x00dev, |
626 | struct rt2x00lib_conf *libconf, |
627 | const unsigned int changed_flags); |
628 | void (*pre_reset_hw) (struct rt2x00_dev *rt2x00dev); |
629 | int (*sta_add) (struct rt2x00_dev *rt2x00dev, |
630 | struct ieee80211_vif *vif, |
631 | struct ieee80211_sta *sta); |
632 | int (*sta_remove) (struct rt2x00_dev *rt2x00dev, |
633 | struct ieee80211_sta *sta); |
634 | }; |
635 | |
636 | /* |
637 | * rt2x00 driver callback operation structure. |
638 | */ |
639 | struct rt2x00_ops { |
640 | const char *name; |
641 | const unsigned int drv_data_size; |
642 | const unsigned int max_ap_intf; |
643 | const unsigned int eeprom_size; |
644 | const unsigned int rf_size; |
645 | const unsigned int tx_queues; |
646 | void (*queue_init)(struct data_queue *queue); |
647 | const struct rt2x00lib_ops *lib; |
648 | const void *drv; |
649 | const struct ieee80211_ops *hw; |
650 | #ifdef CONFIG_RT2X00_LIB_DEBUGFS |
651 | const struct rt2x00debug *debugfs; |
652 | #endif /* CONFIG_RT2X00_LIB_DEBUGFS */ |
653 | }; |
654 | |
655 | /* |
656 | * rt2x00 state flags |
657 | */ |
658 | enum rt2x00_state_flags { |
659 | /* |
660 | * Device flags |
661 | */ |
662 | DEVICE_STATE_PRESENT, |
663 | DEVICE_STATE_REGISTERED_HW, |
664 | DEVICE_STATE_INITIALIZED, |
665 | DEVICE_STATE_STARTED, |
666 | DEVICE_STATE_ENABLED_RADIO, |
667 | DEVICE_STATE_SCANNING, |
668 | DEVICE_STATE_FLUSHING, |
669 | DEVICE_STATE_RESET, |
670 | |
671 | /* |
672 | * Driver configuration |
673 | */ |
674 | CONFIG_CHANNEL_HT40, |
675 | CONFIG_POWERSAVING, |
676 | CONFIG_HT_DISABLED, |
677 | CONFIG_MONITORING, |
678 | |
679 | /* |
680 | * Mark we currently are sequentially reading TX_STA_FIFO register |
681 | * FIXME: this is for only rt2800usb, should go to private data |
682 | */ |
683 | TX_STATUS_READING, |
684 | }; |
685 | |
686 | /* |
687 | * rt2x00 capability flags |
688 | */ |
689 | enum rt2x00_capability_flags { |
690 | /* |
691 | * Requirements |
692 | */ |
693 | REQUIRE_FIRMWARE, |
694 | REQUIRE_BEACON_GUARD, |
695 | REQUIRE_ATIM_QUEUE, |
696 | REQUIRE_DMA, |
697 | REQUIRE_COPY_IV, |
698 | REQUIRE_L2PAD, |
699 | REQUIRE_TXSTATUS_FIFO, |
700 | REQUIRE_TASKLET_CONTEXT, |
701 | REQUIRE_SW_SEQNO, |
702 | REQUIRE_HT_TX_DESC, |
703 | REQUIRE_PS_AUTOWAKE, |
704 | REQUIRE_DELAYED_RFKILL, |
705 | |
706 | /* |
707 | * Capabilities |
708 | */ |
709 | CAPABILITY_HW_BUTTON, |
710 | CAPABILITY_HW_CRYPTO, |
711 | CAPABILITY_POWER_LIMIT, |
712 | CAPABILITY_CONTROL_FILTERS, |
713 | CAPABILITY_CONTROL_FILTER_PSPOLL, |
714 | CAPABILITY_PRE_TBTT_INTERRUPT, |
715 | CAPABILITY_LINK_TUNING, |
716 | CAPABILITY_FRAME_TYPE, |
717 | CAPABILITY_RF_SEQUENCE, |
718 | CAPABILITY_EXTERNAL_LNA_A, |
719 | CAPABILITY_EXTERNAL_LNA_BG, |
720 | CAPABILITY_DOUBLE_ANTENNA, |
721 | CAPABILITY_BT_COEXIST, |
722 | CAPABILITY_VCO_RECALIBRATION, |
723 | CAPABILITY_EXTERNAL_PA_TX0, |
724 | CAPABILITY_EXTERNAL_PA_TX1, |
725 | CAPABILITY_RESTART_HW, |
726 | }; |
727 | |
728 | /* |
729 | * Interface combinations |
730 | */ |
731 | enum { |
732 | IF_COMB_AP = 0, |
733 | NUM_IF_COMB, |
734 | }; |
735 | |
736 | /* |
737 | * rt2x00 device structure. |
738 | */ |
739 | struct rt2x00_dev { |
740 | /* |
741 | * Device structure. |
742 | * The structure stored in here depends on the |
743 | * system bus (PCI or USB). |
744 | * When accessing this variable, the rt2x00dev_{pci,usb} |
745 | * macros should be used for correct typecasting. |
746 | */ |
747 | struct device *dev; |
748 | |
749 | /* |
750 | * Callback functions. |
751 | */ |
752 | const struct rt2x00_ops *ops; |
753 | |
754 | /* |
755 | * Driver data. |
756 | */ |
757 | void *drv_data; |
758 | |
759 | /* |
760 | * IEEE80211 control structure. |
761 | */ |
762 | struct ieee80211_hw *hw; |
763 | struct ieee80211_supported_band bands[NUM_NL80211_BANDS]; |
764 | struct rt2x00_chan_survey *chan_survey; |
765 | enum nl80211_band curr_band; |
766 | int curr_freq; |
767 | |
768 | /* |
769 | * If enabled, the debugfs interface structures |
770 | * required for deregistration of debugfs. |
771 | */ |
772 | #ifdef CONFIG_RT2X00_LIB_DEBUGFS |
773 | struct rt2x00debug_intf *debugfs_intf; |
774 | #endif /* CONFIG_RT2X00_LIB_DEBUGFS */ |
775 | |
776 | /* |
777 | * LED structure for changing the LED status |
778 | * by mac8011 or the kernel. |
779 | */ |
780 | #ifdef CONFIG_RT2X00_LIB_LEDS |
781 | struct rt2x00_led led_radio; |
782 | struct rt2x00_led led_assoc; |
783 | struct rt2x00_led led_qual; |
784 | u16 led_mcu_reg; |
785 | #endif /* CONFIG_RT2X00_LIB_LEDS */ |
786 | |
787 | /* |
788 | * Device state flags. |
789 | * In these flags the current status is stored. |
790 | * Access to these flags should occur atomically. |
791 | */ |
792 | unsigned long flags; |
793 | |
794 | /* |
795 | * Device capabiltiy flags. |
796 | * In these flags the device/driver capabilities are stored. |
797 | * Access to these flags should occur non-atomically. |
798 | */ |
799 | unsigned long cap_flags; |
800 | |
801 | /* |
802 | * Device information, Bus IRQ and name (PCI, SoC) |
803 | */ |
804 | int irq; |
805 | const char *name; |
806 | |
807 | /* |
808 | * Chipset identification. |
809 | */ |
810 | struct rt2x00_chip chip; |
811 | |
812 | /* |
813 | * hw capability specifications. |
814 | */ |
815 | struct hw_mode_spec spec; |
816 | |
817 | /* |
818 | * This is the default TX/RX antenna setup as indicated |
819 | * by the device's EEPROM. |
820 | */ |
821 | struct antenna_setup default_ant; |
822 | |
823 | /* |
824 | * Register pointers |
825 | * csr.base: CSR base register address. (PCI) |
826 | * csr.cache: CSR cache for usb_control_msg. (USB) |
827 | */ |
828 | union csr { |
829 | void __iomem *base; |
830 | void *cache; |
831 | } csr; |
832 | |
833 | /* |
834 | * Mutex to protect register accesses. |
835 | * For PCI and USB devices it protects against concurrent indirect |
836 | * register access (BBP, RF, MCU) since accessing those |
837 | * registers require multiple calls to the CSR registers. |
838 | * For USB devices it also protects the csr_cache since that |
839 | * field is used for normal CSR access and it cannot support |
840 | * multiple callers simultaneously. |
841 | */ |
842 | struct mutex csr_mutex; |
843 | |
844 | /* |
845 | * Mutex to synchronize config and link tuner. |
846 | */ |
847 | struct mutex conf_mutex; |
848 | /* |
849 | * Current packet filter configuration for the device. |
850 | * This contains all currently active FIF_* flags send |
851 | * to us by mac80211 during configure_filter(). |
852 | */ |
853 | unsigned int packet_filter; |
854 | |
855 | /* |
856 | * Interface details: |
857 | * - Open ap interface count. |
858 | * - Open sta interface count. |
859 | * - Association count. |
860 | * - Beaconing enabled count. |
861 | */ |
862 | unsigned int intf_ap_count; |
863 | unsigned int intf_sta_count; |
864 | unsigned int intf_associated; |
865 | unsigned int intf_beaconing; |
866 | |
867 | /* |
868 | * Interface combinations |
869 | */ |
870 | struct ieee80211_iface_limit if_limits_ap; |
871 | struct ieee80211_iface_combination if_combinations[NUM_IF_COMB]; |
872 | |
873 | /* |
874 | * Link quality |
875 | */ |
876 | struct link link; |
877 | |
878 | /* |
879 | * EEPROM data. |
880 | */ |
881 | __le16 *eeprom; |
882 | |
883 | /* |
884 | * Active RF register values. |
885 | * These are stored here so we don't need |
886 | * to read the rf registers and can directly |
887 | * use this value instead. |
888 | * This field should be accessed by using |
889 | * rt2x00_rf_read() and rt2x00_rf_write(). |
890 | */ |
891 | u32 *rf; |
892 | |
893 | /* |
894 | * LNA gain |
895 | */ |
896 | short lna_gain; |
897 | |
898 | /* |
899 | * Current TX power value. |
900 | */ |
901 | u16 tx_power; |
902 | |
903 | /* |
904 | * Current retry values. |
905 | */ |
906 | u8 short_retry; |
907 | u8 long_retry; |
908 | |
909 | /* |
910 | * Rssi <-> Dbm offset |
911 | */ |
912 | u8 ; |
913 | |
914 | /* |
915 | * Frequency offset. |
916 | */ |
917 | u8 freq_offset; |
918 | |
919 | /* |
920 | * Association id. |
921 | */ |
922 | u16 aid; |
923 | |
924 | /* |
925 | * Beacon interval. |
926 | */ |
927 | u16 beacon_int; |
928 | |
929 | /* Rx/Tx DMA busy watchdog counter */ |
930 | u16 rxdma_busy, txdma_busy; |
931 | |
932 | /** |
933 | * Timestamp of last received beacon |
934 | */ |
935 | unsigned long last_beacon; |
936 | |
937 | /* |
938 | * Low level statistics which will have |
939 | * to be kept up to date while device is running. |
940 | */ |
941 | struct ieee80211_low_level_stats low_level_stats; |
942 | |
943 | /** |
944 | * Work queue for all work which should not be placed |
945 | * on the mac80211 workqueue (because of dependencies |
946 | * between various work structures). |
947 | */ |
948 | struct workqueue_struct *workqueue; |
949 | |
950 | /* |
951 | * Scheduled work. |
952 | * NOTE: intf_work will use ieee80211_iterate_active_interfaces() |
953 | * which means it cannot be placed on the hw->workqueue |
954 | * due to RTNL locking requirements. |
955 | */ |
956 | struct work_struct intf_work; |
957 | |
958 | /** |
959 | * Scheduled work for TX/RX done handling (USB devices) |
960 | */ |
961 | struct work_struct rxdone_work; |
962 | struct work_struct txdone_work; |
963 | |
964 | /* |
965 | * Powersaving work |
966 | */ |
967 | struct delayed_work autowakeup_work; |
968 | struct work_struct sleep_work; |
969 | |
970 | /* |
971 | * Data queue arrays for RX, TX, Beacon and ATIM. |
972 | */ |
973 | unsigned int data_queues; |
974 | struct data_queue *rx; |
975 | struct data_queue *tx; |
976 | struct data_queue *bcn; |
977 | struct data_queue *atim; |
978 | |
979 | /* |
980 | * Firmware image. |
981 | */ |
982 | const struct firmware *fw; |
983 | |
984 | /* |
985 | * FIFO for storing tx status reports between isr and tasklet. |
986 | */ |
987 | DECLARE_KFIFO_PTR(txstatus_fifo, u32); |
988 | |
989 | /* |
990 | * Timer to ensure tx status reports are read (rt2800usb). |
991 | */ |
992 | struct hrtimer txstatus_timer; |
993 | |
994 | /* |
995 | * Tasklet for processing tx status reports (rt2800pci). |
996 | */ |
997 | struct tasklet_struct txstatus_tasklet; |
998 | struct tasklet_struct pretbtt_tasklet; |
999 | struct tasklet_struct tbtt_tasklet; |
1000 | struct tasklet_struct rxdone_tasklet; |
1001 | struct tasklet_struct autowake_tasklet; |
1002 | |
1003 | /* |
1004 | * Used for VCO periodic calibration. |
1005 | */ |
1006 | int rf_channel; |
1007 | |
1008 | /* |
1009 | * Protect the interrupt mask register. |
1010 | */ |
1011 | spinlock_t irqmask_lock; |
1012 | |
1013 | /* |
1014 | * List of BlockAckReq TX entries that need driver BlockAck processing. |
1015 | */ |
1016 | struct list_head bar_list; |
1017 | spinlock_t bar_list_lock; |
1018 | |
1019 | /* Extra TX headroom required for alignment purposes. */ |
1020 | unsigned int ; |
1021 | |
1022 | struct usb_anchor *anchor; |
1023 | unsigned int num_proto_errs; |
1024 | |
1025 | /* Clock for System On Chip devices. */ |
1026 | struct clk *clk; |
1027 | }; |
1028 | |
1029 | struct rt2x00_bar_list_entry { |
1030 | struct list_head list; |
1031 | struct rcu_head head; |
1032 | |
1033 | struct queue_entry *entry; |
1034 | int block_acked; |
1035 | |
1036 | /* Relevant parts of the IEEE80211 BAR header */ |
1037 | __u8 ra[6]; |
1038 | __u8 ta[6]; |
1039 | __le16 control; |
1040 | __le16 start_seq_num; |
1041 | }; |
1042 | |
1043 | /* |
1044 | * Register defines. |
1045 | * Some registers require multiple attempts before success, |
1046 | * in those cases REGISTER_BUSY_COUNT attempts should be |
1047 | * taken with a REGISTER_BUSY_DELAY interval. Due to USB |
1048 | * bus delays, we do not have to loop so many times to wait |
1049 | * for valid register value on that bus. |
1050 | */ |
1051 | #define REGISTER_BUSY_COUNT 100 |
1052 | #define REGISTER_USB_BUSY_COUNT 20 |
1053 | #define REGISTER_BUSY_DELAY 100 |
1054 | |
1055 | /* |
1056 | * Generic RF access. |
1057 | * The RF is being accessed by word index. |
1058 | */ |
1059 | static inline u32 rt2x00_rf_read(struct rt2x00_dev *rt2x00dev, |
1060 | const unsigned int word) |
1061 | { |
1062 | BUG_ON(word < 1 || word > rt2x00dev->ops->rf_size / sizeof(u32)); |
1063 | return rt2x00dev->rf[word - 1]; |
1064 | } |
1065 | |
1066 | static inline void rt2x00_rf_write(struct rt2x00_dev *rt2x00dev, |
1067 | const unsigned int word, u32 data) |
1068 | { |
1069 | BUG_ON(word < 1 || word > rt2x00dev->ops->rf_size / sizeof(u32)); |
1070 | rt2x00dev->rf[word - 1] = data; |
1071 | } |
1072 | |
1073 | /* |
1074 | * Generic EEPROM access. The EEPROM is being accessed by word or byte index. |
1075 | */ |
1076 | static inline void *rt2x00_eeprom_addr(struct rt2x00_dev *rt2x00dev, |
1077 | const unsigned int word) |
1078 | { |
1079 | return (void *)&rt2x00dev->eeprom[word]; |
1080 | } |
1081 | |
1082 | static inline u16 rt2x00_eeprom_read(struct rt2x00_dev *rt2x00dev, |
1083 | const unsigned int word) |
1084 | { |
1085 | return le16_to_cpu(rt2x00dev->eeprom[word]); |
1086 | } |
1087 | |
1088 | static inline void rt2x00_eeprom_write(struct rt2x00_dev *rt2x00dev, |
1089 | const unsigned int word, u16 data) |
1090 | { |
1091 | rt2x00dev->eeprom[word] = cpu_to_le16(data); |
1092 | } |
1093 | |
1094 | static inline u8 rt2x00_eeprom_byte(struct rt2x00_dev *rt2x00dev, |
1095 | const unsigned int byte) |
1096 | { |
1097 | return *(((u8 *)rt2x00dev->eeprom) + byte); |
1098 | } |
1099 | |
1100 | /* |
1101 | * Chipset handlers |
1102 | */ |
1103 | static inline void rt2x00_set_chip(struct rt2x00_dev *rt2x00dev, |
1104 | const u16 rt, const u16 rf, const u16 rev) |
1105 | { |
1106 | rt2x00dev->chip.rt = rt; |
1107 | rt2x00dev->chip.rf = rf; |
1108 | rt2x00dev->chip.rev = rev; |
1109 | |
1110 | rt2x00_info(rt2x00dev, "Chipset detected - rt: %04x, rf: %04x, rev: %04x\n" , |
1111 | rt2x00dev->chip.rt, rt2x00dev->chip.rf, |
1112 | rt2x00dev->chip.rev); |
1113 | } |
1114 | |
1115 | static inline void rt2x00_set_rt(struct rt2x00_dev *rt2x00dev, |
1116 | const u16 rt, const u16 rev) |
1117 | { |
1118 | rt2x00dev->chip.rt = rt; |
1119 | rt2x00dev->chip.rev = rev; |
1120 | |
1121 | rt2x00_info(rt2x00dev, "RT chipset %04x, rev %04x detected\n" , |
1122 | rt2x00dev->chip.rt, rt2x00dev->chip.rev); |
1123 | } |
1124 | |
1125 | static inline void rt2x00_set_rf(struct rt2x00_dev *rt2x00dev, const u16 rf) |
1126 | { |
1127 | rt2x00dev->chip.rf = rf; |
1128 | |
1129 | rt2x00_info(rt2x00dev, "RF chipset %04x detected\n" , |
1130 | rt2x00dev->chip.rf); |
1131 | } |
1132 | |
1133 | static inline bool rt2x00_rt(struct rt2x00_dev *rt2x00dev, const u16 rt) |
1134 | { |
1135 | return (rt2x00dev->chip.rt == rt); |
1136 | } |
1137 | |
1138 | static inline bool rt2x00_rf(struct rt2x00_dev *rt2x00dev, const u16 rf) |
1139 | { |
1140 | return (rt2x00dev->chip.rf == rf); |
1141 | } |
1142 | |
1143 | static inline u16 rt2x00_rev(struct rt2x00_dev *rt2x00dev) |
1144 | { |
1145 | return rt2x00dev->chip.rev; |
1146 | } |
1147 | |
1148 | static inline bool rt2x00_rt_rev(struct rt2x00_dev *rt2x00dev, |
1149 | const u16 rt, const u16 rev) |
1150 | { |
1151 | return (rt2x00_rt(rt2x00dev, rt) && rt2x00_rev(rt2x00dev) == rev); |
1152 | } |
1153 | |
1154 | static inline bool rt2x00_rt_rev_lt(struct rt2x00_dev *rt2x00dev, |
1155 | const u16 rt, const u16 rev) |
1156 | { |
1157 | return (rt2x00_rt(rt2x00dev, rt) && rt2x00_rev(rt2x00dev) < rev); |
1158 | } |
1159 | |
1160 | static inline bool rt2x00_rt_rev_gte(struct rt2x00_dev *rt2x00dev, |
1161 | const u16 rt, const u16 rev) |
1162 | { |
1163 | return (rt2x00_rt(rt2x00dev, rt) && rt2x00_rev(rt2x00dev) >= rev); |
1164 | } |
1165 | |
1166 | static inline void rt2x00_set_chip_intf(struct rt2x00_dev *rt2x00dev, |
1167 | enum rt2x00_chip_intf intf) |
1168 | { |
1169 | rt2x00dev->chip.intf = intf; |
1170 | } |
1171 | |
1172 | static inline bool rt2x00_intf(struct rt2x00_dev *rt2x00dev, |
1173 | enum rt2x00_chip_intf intf) |
1174 | { |
1175 | return (rt2x00dev->chip.intf == intf); |
1176 | } |
1177 | |
1178 | static inline bool rt2x00_is_pci(struct rt2x00_dev *rt2x00dev) |
1179 | { |
1180 | return rt2x00_intf(rt2x00dev, intf: RT2X00_CHIP_INTF_PCI) || |
1181 | rt2x00_intf(rt2x00dev, intf: RT2X00_CHIP_INTF_PCIE); |
1182 | } |
1183 | |
1184 | static inline bool rt2x00_is_pcie(struct rt2x00_dev *rt2x00dev) |
1185 | { |
1186 | return rt2x00_intf(rt2x00dev, intf: RT2X00_CHIP_INTF_PCIE); |
1187 | } |
1188 | |
1189 | static inline bool rt2x00_is_usb(struct rt2x00_dev *rt2x00dev) |
1190 | { |
1191 | return rt2x00_intf(rt2x00dev, intf: RT2X00_CHIP_INTF_USB); |
1192 | } |
1193 | |
1194 | static inline bool rt2x00_is_soc(struct rt2x00_dev *rt2x00dev) |
1195 | { |
1196 | return rt2x00_intf(rt2x00dev, intf: RT2X00_CHIP_INTF_SOC); |
1197 | } |
1198 | |
1199 | /* Helpers for capability flags */ |
1200 | |
1201 | static inline bool |
1202 | rt2x00_has_cap_flag(struct rt2x00_dev *rt2x00dev, |
1203 | enum rt2x00_capability_flags cap_flag) |
1204 | { |
1205 | return test_bit(cap_flag, &rt2x00dev->cap_flags); |
1206 | } |
1207 | |
1208 | static inline bool |
1209 | rt2x00_has_cap_hw_crypto(struct rt2x00_dev *rt2x00dev) |
1210 | { |
1211 | return rt2x00_has_cap_flag(rt2x00dev, cap_flag: CAPABILITY_HW_CRYPTO); |
1212 | } |
1213 | |
1214 | static inline bool |
1215 | rt2x00_has_cap_power_limit(struct rt2x00_dev *rt2x00dev) |
1216 | { |
1217 | return rt2x00_has_cap_flag(rt2x00dev, cap_flag: CAPABILITY_POWER_LIMIT); |
1218 | } |
1219 | |
1220 | static inline bool |
1221 | rt2x00_has_cap_control_filters(struct rt2x00_dev *rt2x00dev) |
1222 | { |
1223 | return rt2x00_has_cap_flag(rt2x00dev, cap_flag: CAPABILITY_CONTROL_FILTERS); |
1224 | } |
1225 | |
1226 | static inline bool |
1227 | rt2x00_has_cap_control_filter_pspoll(struct rt2x00_dev *rt2x00dev) |
1228 | { |
1229 | return rt2x00_has_cap_flag(rt2x00dev, cap_flag: CAPABILITY_CONTROL_FILTER_PSPOLL); |
1230 | } |
1231 | |
1232 | static inline bool |
1233 | rt2x00_has_cap_pre_tbtt_interrupt(struct rt2x00_dev *rt2x00dev) |
1234 | { |
1235 | return rt2x00_has_cap_flag(rt2x00dev, cap_flag: CAPABILITY_PRE_TBTT_INTERRUPT); |
1236 | } |
1237 | |
1238 | static inline bool |
1239 | rt2x00_has_cap_link_tuning(struct rt2x00_dev *rt2x00dev) |
1240 | { |
1241 | return rt2x00_has_cap_flag(rt2x00dev, cap_flag: CAPABILITY_LINK_TUNING); |
1242 | } |
1243 | |
1244 | static inline bool |
1245 | rt2x00_has_cap_frame_type(struct rt2x00_dev *rt2x00dev) |
1246 | { |
1247 | return rt2x00_has_cap_flag(rt2x00dev, cap_flag: CAPABILITY_FRAME_TYPE); |
1248 | } |
1249 | |
1250 | static inline bool |
1251 | rt2x00_has_cap_rf_sequence(struct rt2x00_dev *rt2x00dev) |
1252 | { |
1253 | return rt2x00_has_cap_flag(rt2x00dev, cap_flag: CAPABILITY_RF_SEQUENCE); |
1254 | } |
1255 | |
1256 | static inline bool |
1257 | rt2x00_has_cap_external_lna_a(struct rt2x00_dev *rt2x00dev) |
1258 | { |
1259 | return rt2x00_has_cap_flag(rt2x00dev, cap_flag: CAPABILITY_EXTERNAL_LNA_A); |
1260 | } |
1261 | |
1262 | static inline bool |
1263 | rt2x00_has_cap_external_lna_bg(struct rt2x00_dev *rt2x00dev) |
1264 | { |
1265 | return rt2x00_has_cap_flag(rt2x00dev, cap_flag: CAPABILITY_EXTERNAL_LNA_BG); |
1266 | } |
1267 | |
1268 | static inline bool |
1269 | rt2x00_has_cap_external_pa(struct rt2x00_dev *rt2x00dev) |
1270 | { |
1271 | return rt2x00_has_cap_flag(rt2x00dev, cap_flag: CAPABILITY_EXTERNAL_PA_TX0); |
1272 | } |
1273 | |
1274 | static inline bool |
1275 | rt2x00_has_cap_double_antenna(struct rt2x00_dev *rt2x00dev) |
1276 | { |
1277 | return rt2x00_has_cap_flag(rt2x00dev, cap_flag: CAPABILITY_DOUBLE_ANTENNA); |
1278 | } |
1279 | |
1280 | static inline bool |
1281 | rt2x00_has_cap_bt_coexist(struct rt2x00_dev *rt2x00dev) |
1282 | { |
1283 | return rt2x00_has_cap_flag(rt2x00dev, cap_flag: CAPABILITY_BT_COEXIST); |
1284 | } |
1285 | |
1286 | static inline bool |
1287 | rt2x00_has_cap_vco_recalibration(struct rt2x00_dev *rt2x00dev) |
1288 | { |
1289 | return rt2x00_has_cap_flag(rt2x00dev, cap_flag: CAPABILITY_VCO_RECALIBRATION); |
1290 | } |
1291 | |
1292 | static inline bool |
1293 | rt2x00_has_cap_restart_hw(struct rt2x00_dev *rt2x00dev) |
1294 | { |
1295 | return rt2x00_has_cap_flag(rt2x00dev, cap_flag: CAPABILITY_RESTART_HW); |
1296 | } |
1297 | |
1298 | /** |
1299 | * rt2x00queue_map_txskb - Map a skb into DMA for TX purposes. |
1300 | * @entry: Pointer to &struct queue_entry |
1301 | * |
1302 | * Returns -ENOMEM if mapping fail, 0 otherwise. |
1303 | */ |
1304 | int rt2x00queue_map_txskb(struct queue_entry *entry); |
1305 | |
1306 | /** |
1307 | * rt2x00queue_unmap_skb - Unmap a skb from DMA. |
1308 | * @entry: Pointer to &struct queue_entry |
1309 | */ |
1310 | void rt2x00queue_unmap_skb(struct queue_entry *entry); |
1311 | |
1312 | /** |
1313 | * rt2x00queue_get_tx_queue - Convert tx queue index to queue pointer |
1314 | * @rt2x00dev: Pointer to &struct rt2x00_dev. |
1315 | * @queue: rt2x00 queue index (see &enum data_queue_qid). |
1316 | * |
1317 | * Returns NULL for non tx queues. |
1318 | */ |
1319 | static inline struct data_queue * |
1320 | rt2x00queue_get_tx_queue(struct rt2x00_dev *rt2x00dev, |
1321 | enum data_queue_qid queue) |
1322 | { |
1323 | if (queue >= rt2x00dev->ops->tx_queues && queue < IEEE80211_NUM_ACS) |
1324 | queue = rt2x00dev->ops->tx_queues - 1; |
1325 | |
1326 | if (queue < rt2x00dev->ops->tx_queues && rt2x00dev->tx) |
1327 | return &rt2x00dev->tx[queue]; |
1328 | |
1329 | if (queue == QID_ATIM) |
1330 | return rt2x00dev->atim; |
1331 | |
1332 | return NULL; |
1333 | } |
1334 | |
1335 | /** |
1336 | * rt2x00queue_get_entry - Get queue entry where the given index points to. |
1337 | * @queue: Pointer to &struct data_queue from where we obtain the entry. |
1338 | * @index: Index identifier for obtaining the correct index. |
1339 | */ |
1340 | struct queue_entry *rt2x00queue_get_entry(struct data_queue *queue, |
1341 | enum queue_index index); |
1342 | |
1343 | /** |
1344 | * rt2x00queue_pause_queue - Pause a data queue |
1345 | * @queue: Pointer to &struct data_queue. |
1346 | * |
1347 | * This function will pause the data queue locally, preventing |
1348 | * new frames to be added to the queue (while the hardware is |
1349 | * still allowed to run). |
1350 | */ |
1351 | void rt2x00queue_pause_queue(struct data_queue *queue); |
1352 | |
1353 | /** |
1354 | * rt2x00queue_unpause_queue - unpause a data queue |
1355 | * @queue: Pointer to &struct data_queue. |
1356 | * |
1357 | * This function will unpause the data queue locally, allowing |
1358 | * new frames to be added to the queue again. |
1359 | */ |
1360 | void rt2x00queue_unpause_queue(struct data_queue *queue); |
1361 | |
1362 | /** |
1363 | * rt2x00queue_start_queue - Start a data queue |
1364 | * @queue: Pointer to &struct data_queue. |
1365 | * |
1366 | * This function will start handling all pending frames in the queue. |
1367 | */ |
1368 | void rt2x00queue_start_queue(struct data_queue *queue); |
1369 | |
1370 | /** |
1371 | * rt2x00queue_stop_queue - Halt a data queue |
1372 | * @queue: Pointer to &struct data_queue. |
1373 | * |
1374 | * This function will stop all pending frames in the queue. |
1375 | */ |
1376 | void rt2x00queue_stop_queue(struct data_queue *queue); |
1377 | |
1378 | /** |
1379 | * rt2x00queue_flush_queue - Flush a data queue |
1380 | * @queue: Pointer to &struct data_queue. |
1381 | * @drop: True to drop all pending frames. |
1382 | * |
1383 | * This function will flush the queue. After this call |
1384 | * the queue is guaranteed to be empty. |
1385 | */ |
1386 | void rt2x00queue_flush_queue(struct data_queue *queue, bool drop); |
1387 | |
1388 | /** |
1389 | * rt2x00queue_start_queues - Start all data queues |
1390 | * @rt2x00dev: Pointer to &struct rt2x00_dev. |
1391 | * |
1392 | * This function will loop through all available queues to start them |
1393 | */ |
1394 | void rt2x00queue_start_queues(struct rt2x00_dev *rt2x00dev); |
1395 | |
1396 | /** |
1397 | * rt2x00queue_stop_queues - Halt all data queues |
1398 | * @rt2x00dev: Pointer to &struct rt2x00_dev. |
1399 | * |
1400 | * This function will loop through all available queues to stop |
1401 | * any pending frames. |
1402 | */ |
1403 | void rt2x00queue_stop_queues(struct rt2x00_dev *rt2x00dev); |
1404 | |
1405 | /** |
1406 | * rt2x00queue_flush_queues - Flush all data queues |
1407 | * @rt2x00dev: Pointer to &struct rt2x00_dev. |
1408 | * @drop: True to drop all pending frames. |
1409 | * |
1410 | * This function will loop through all available queues to flush |
1411 | * any pending frames. |
1412 | */ |
1413 | void rt2x00queue_flush_queues(struct rt2x00_dev *rt2x00dev, bool drop); |
1414 | |
1415 | /* |
1416 | * Debugfs handlers. |
1417 | */ |
1418 | /** |
1419 | * rt2x00debug_dump_frame - Dump a frame to userspace through debugfs. |
1420 | * @rt2x00dev: Pointer to &struct rt2x00_dev. |
1421 | * @type: The type of frame that is being dumped. |
1422 | * @entry: The queue entry containing the frame to be dumped. |
1423 | */ |
1424 | #ifdef CONFIG_RT2X00_LIB_DEBUGFS |
1425 | void rt2x00debug_dump_frame(struct rt2x00_dev *rt2x00dev, |
1426 | enum rt2x00_dump_type type, struct queue_entry *entry); |
1427 | #else |
1428 | static inline void rt2x00debug_dump_frame(struct rt2x00_dev *rt2x00dev, |
1429 | enum rt2x00_dump_type type, |
1430 | struct queue_entry *entry) |
1431 | { |
1432 | } |
1433 | #endif /* CONFIG_RT2X00_LIB_DEBUGFS */ |
1434 | |
1435 | /* |
1436 | * Utility functions. |
1437 | */ |
1438 | u32 rt2x00lib_get_bssidx(struct rt2x00_dev *rt2x00dev, |
1439 | struct ieee80211_vif *vif); |
1440 | void rt2x00lib_set_mac_address(struct rt2x00_dev *rt2x00dev, u8 *eeprom_mac_addr); |
1441 | |
1442 | /* |
1443 | * Interrupt context handlers. |
1444 | */ |
1445 | void rt2x00lib_beacondone(struct rt2x00_dev *rt2x00dev); |
1446 | void rt2x00lib_pretbtt(struct rt2x00_dev *rt2x00dev); |
1447 | void rt2x00lib_dmastart(struct queue_entry *entry); |
1448 | void rt2x00lib_dmadone(struct queue_entry *entry); |
1449 | void rt2x00lib_txdone(struct queue_entry *entry, |
1450 | struct txdone_entry_desc *txdesc); |
1451 | void rt2x00lib_txdone_nomatch(struct queue_entry *entry, |
1452 | struct txdone_entry_desc *txdesc); |
1453 | void rt2x00lib_txdone_noinfo(struct queue_entry *entry, u32 status); |
1454 | void rt2x00lib_rxdone(struct queue_entry *entry, gfp_t gfp); |
1455 | |
1456 | /* |
1457 | * mac80211 handlers. |
1458 | */ |
1459 | void rt2x00mac_tx(struct ieee80211_hw *hw, |
1460 | struct ieee80211_tx_control *control, |
1461 | struct sk_buff *skb); |
1462 | int rt2x00mac_start(struct ieee80211_hw *hw); |
1463 | void rt2x00mac_stop(struct ieee80211_hw *hw); |
1464 | void rt2x00mac_reconfig_complete(struct ieee80211_hw *hw, |
1465 | enum ieee80211_reconfig_type reconfig_type); |
1466 | int rt2x00mac_add_interface(struct ieee80211_hw *hw, |
1467 | struct ieee80211_vif *vif); |
1468 | void rt2x00mac_remove_interface(struct ieee80211_hw *hw, |
1469 | struct ieee80211_vif *vif); |
1470 | int rt2x00mac_config(struct ieee80211_hw *hw, u32 changed); |
1471 | void rt2x00mac_configure_filter(struct ieee80211_hw *hw, |
1472 | unsigned int changed_flags, |
1473 | unsigned int *total_flags, |
1474 | u64 multicast); |
1475 | int rt2x00mac_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, |
1476 | bool set); |
1477 | #ifdef CONFIG_RT2X00_LIB_CRYPTO |
1478 | int rt2x00mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, |
1479 | struct ieee80211_vif *vif, struct ieee80211_sta *sta, |
1480 | struct ieee80211_key_conf *key); |
1481 | #else |
1482 | #define rt2x00mac_set_key NULL |
1483 | #endif /* CONFIG_RT2X00_LIB_CRYPTO */ |
1484 | void rt2x00mac_sw_scan_start(struct ieee80211_hw *hw, |
1485 | struct ieee80211_vif *vif, |
1486 | const u8 *mac_addr); |
1487 | void rt2x00mac_sw_scan_complete(struct ieee80211_hw *hw, |
1488 | struct ieee80211_vif *vif); |
1489 | int rt2x00mac_get_stats(struct ieee80211_hw *hw, |
1490 | struct ieee80211_low_level_stats *stats); |
1491 | void rt2x00mac_bss_info_changed(struct ieee80211_hw *hw, |
1492 | struct ieee80211_vif *vif, |
1493 | struct ieee80211_bss_conf *bss_conf, |
1494 | u64 changes); |
1495 | int rt2x00mac_conf_tx(struct ieee80211_hw *hw, |
1496 | struct ieee80211_vif *vif, |
1497 | unsigned int link_id, u16 queue, |
1498 | const struct ieee80211_tx_queue_params *params); |
1499 | void rt2x00mac_rfkill_poll(struct ieee80211_hw *hw); |
1500 | void rt2x00mac_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif, |
1501 | u32 queues, bool drop); |
1502 | int rt2x00mac_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant); |
1503 | int rt2x00mac_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant); |
1504 | void rt2x00mac_get_ringparam(struct ieee80211_hw *hw, |
1505 | u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max); |
1506 | bool rt2x00mac_tx_frames_pending(struct ieee80211_hw *hw); |
1507 | |
1508 | /* |
1509 | * Driver allocation handlers. |
1510 | */ |
1511 | int rt2x00lib_probe_dev(struct rt2x00_dev *rt2x00dev); |
1512 | void rt2x00lib_remove_dev(struct rt2x00_dev *rt2x00dev); |
1513 | |
1514 | int rt2x00lib_suspend(struct rt2x00_dev *rt2x00dev); |
1515 | int rt2x00lib_resume(struct rt2x00_dev *rt2x00dev); |
1516 | |
1517 | #endif /* RT2X00_H */ |
1518 | |