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95ea3627 | 1 | /* |
4e54c711 | 2 | Copyright (C) 2004 - 2009 rt2x00 SourceForge Project |
95ea3627 ID |
3 | <http://rt2x00.serialmonkey.com> |
4 | ||
5 | This program is free software; you can redistribute it and/or modify | |
6 | it under the terms of the GNU General Public License as published by | |
7 | the Free Software Foundation; either version 2 of the License, or | |
8 | (at your option) any later version. | |
9 | ||
10 | This program is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public License | |
16 | along with this program; if not, write to the | |
17 | Free Software Foundation, Inc., | |
18 | 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
19 | */ | |
20 | ||
21 | /* | |
22 | Module: rt2x00 | |
23 | Abstract: rt2x00 global information. | |
24 | */ | |
25 | ||
26 | #ifndef RT2X00_H | |
27 | #define RT2X00_H | |
28 | ||
29 | #include <linux/bitops.h> | |
95ea3627 ID |
30 | #include <linux/skbuff.h> |
31 | #include <linux/workqueue.h> | |
32 | #include <linux/firmware.h> | |
a9450b70 | 33 | #include <linux/leds.h> |
3d82346c | 34 | #include <linux/mutex.h> |
61af43c5 | 35 | #include <linux/etherdevice.h> |
cca3e998 | 36 | #include <linux/input-polldev.h> |
95ea3627 ID |
37 | |
38 | #include <net/mac80211.h> | |
39 | ||
40 | #include "rt2x00debug.h" | |
a9450b70 | 41 | #include "rt2x00leds.h" |
95ea3627 | 42 | #include "rt2x00reg.h" |
181d6902 | 43 | #include "rt2x00queue.h" |
95ea3627 ID |
44 | |
45 | /* | |
46 | * Module information. | |
95ea3627 | 47 | */ |
754be309 | 48 | #define DRV_VERSION "2.3.0" |
95ea3627 ID |
49 | #define DRV_PROJECT "http://rt2x00.serialmonkey.com" |
50 | ||
51 | /* | |
52 | * Debug definitions. | |
53 | * Debug output has to be enabled during compile time. | |
54 | */ | |
55 | #define DEBUG_PRINTK_MSG(__dev, __kernlvl, __lvl, __msg, __args...) \ | |
56 | printk(__kernlvl "%s -> %s: %s - " __msg, \ | |
c94c93da | 57 | wiphy_name((__dev)->hw->wiphy), __func__, __lvl, ##__args) |
95ea3627 ID |
58 | |
59 | #define DEBUG_PRINTK_PROBE(__kernlvl, __lvl, __msg, __args...) \ | |
60 | printk(__kernlvl "%s -> %s: %s - " __msg, \ | |
c94c93da | 61 | KBUILD_MODNAME, __func__, __lvl, ##__args) |
95ea3627 ID |
62 | |
63 | #ifdef CONFIG_RT2X00_DEBUG | |
64 | #define DEBUG_PRINTK(__dev, __kernlvl, __lvl, __msg, __args...) \ | |
65 | DEBUG_PRINTK_MSG(__dev, __kernlvl, __lvl, __msg, ##__args); | |
66 | #else | |
67 | #define DEBUG_PRINTK(__dev, __kernlvl, __lvl, __msg, __args...) \ | |
68 | do { } while (0) | |
69 | #endif /* CONFIG_RT2X00_DEBUG */ | |
70 | ||
71 | /* | |
72 | * Various debug levels. | |
73 | * The debug levels PANIC and ERROR both indicate serious problems, | |
74 | * for this reason they should never be ignored. | |
75 | * The special ERROR_PROBE message is for messages that are generated | |
76 | * when the rt2x00_dev is not yet initialized. | |
77 | */ | |
78 | #define PANIC(__dev, __msg, __args...) \ | |
79 | DEBUG_PRINTK_MSG(__dev, KERN_CRIT, "Panic", __msg, ##__args) | |
80 | #define ERROR(__dev, __msg, __args...) \ | |
81 | DEBUG_PRINTK_MSG(__dev, KERN_ERR, "Error", __msg, ##__args) | |
82 | #define ERROR_PROBE(__msg, __args...) \ | |
83 | DEBUG_PRINTK_PROBE(KERN_ERR, "Error", __msg, ##__args) | |
84 | #define WARNING(__dev, __msg, __args...) \ | |
85 | DEBUG_PRINTK(__dev, KERN_WARNING, "Warning", __msg, ##__args) | |
86 | #define NOTICE(__dev, __msg, __args...) \ | |
87 | DEBUG_PRINTK(__dev, KERN_NOTICE, "Notice", __msg, ##__args) | |
88 | #define INFO(__dev, __msg, __args...) \ | |
89 | DEBUG_PRINTK(__dev, KERN_INFO, "Info", __msg, ##__args) | |
90 | #define DEBUG(__dev, __msg, __args...) \ | |
91 | DEBUG_PRINTK(__dev, KERN_DEBUG, "Debug", __msg, ##__args) | |
92 | #define EEPROM(__dev, __msg, __args...) \ | |
93 | DEBUG_PRINTK(__dev, KERN_DEBUG, "EEPROM recovery", __msg, ##__args) | |
94 | ||
bad13639 ID |
95 | /* |
96 | * Duration calculations | |
97 | * The rate variable passed is: 100kbs. | |
98 | * To convert from bytes to bits we multiply size with 8, | |
99 | * then the size is multiplied with 10 to make the | |
100 | * real rate -> rate argument correction. | |
101 | */ | |
102 | #define GET_DURATION(__size, __rate) (((__size) * 8 * 10) / (__rate)) | |
103 | #define GET_DURATION_RES(__size, __rate)(((__size) * 8 * 10) % (__rate)) | |
104 | ||
9f166171 ID |
105 | /* |
106 | * Determine the alignment requirement, | |
107 | * to make sure the 802.11 payload is padded to a 4-byte boundrary | |
108 | * we must determine the address of the payload and calculate the | |
109 | * amount of bytes needed to move the data. | |
110 | */ | |
111 | #define ALIGN_SIZE(__skb, __header) \ | |
112 | ( ((unsigned long)((__skb)->data + (__header))) & 3 ) | |
113 | ||
95ea3627 ID |
114 | /* |
115 | * Standard timing and size defines. | |
116 | * These values should follow the ieee80211 specifications. | |
117 | */ | |
118 | #define ACK_SIZE 14 | |
119 | #define IEEE80211_HEADER 24 | |
120 | #define PLCP 48 | |
121 | #define BEACON 100 | |
122 | #define PREAMBLE 144 | |
123 | #define SHORT_PREAMBLE 72 | |
124 | #define SLOT_TIME 20 | |
125 | #define SHORT_SLOT_TIME 9 | |
126 | #define SIFS 10 | |
127 | #define PIFS ( SIFS + SLOT_TIME ) | |
128 | #define SHORT_PIFS ( SIFS + SHORT_SLOT_TIME ) | |
129 | #define DIFS ( PIFS + SLOT_TIME ) | |
130 | #define SHORT_DIFS ( SHORT_PIFS + SHORT_SLOT_TIME ) | |
f2fdbc48 | 131 | #define EIFS ( SIFS + DIFS + \ |
bad13639 | 132 | GET_DURATION(IEEE80211_HEADER + ACK_SIZE, 10) ) |
f2fdbc48 | 133 | #define SHORT_EIFS ( SIFS + SHORT_DIFS + \ |
bad13639 | 134 | GET_DURATION(IEEE80211_HEADER + ACK_SIZE, 10) ) |
95ea3627 | 135 | |
66679a65 LE |
136 | /* |
137 | * Structure for average calculation | |
138 | * The avg field contains the actual average value, | |
139 | * but avg_weight is internally used during calculations | |
140 | * to prevent rounding errors. | |
141 | */ | |
142 | struct avg_val { | |
143 | int avg; | |
144 | int avg_weight; | |
145 | }; | |
146 | ||
95ea3627 ID |
147 | /* |
148 | * Chipset identification | |
149 | * The chipset on the device is composed of a RT and RF chip. | |
150 | * The chipset combination is important for determining device capabilities. | |
151 | */ | |
152 | struct rt2x00_chip { | |
153 | u16 rt; | |
154 | #define RT2460 0x0101 | |
155 | #define RT2560 0x0201 | |
156 | #define RT2570 0x1201 | |
12dadb90 ID |
157 | #define RT2561s 0x0301 /* Turbo */ |
158 | #define RT2561 0x0302 | |
95ea3627 ID |
159 | #define RT2661 0x0401 |
160 | #define RT2571 0x1300 | |
d53d9e67 | 161 | #define RT2870 0x1600 |
95ea3627 ID |
162 | |
163 | u16 rf; | |
164 | u32 rev; | |
165 | }; | |
166 | ||
167 | /* | |
168 | * RF register values that belong to a particular channel. | |
169 | */ | |
170 | struct rf_channel { | |
171 | int channel; | |
172 | u32 rf1; | |
173 | u32 rf2; | |
174 | u32 rf3; | |
175 | u32 rf4; | |
176 | }; | |
177 | ||
8c5e7a5f ID |
178 | /* |
179 | * Channel information structure | |
180 | */ | |
181 | struct channel_info { | |
182 | unsigned int flags; | |
183 | #define GEOGRAPHY_ALLOWED 0x00000001 | |
184 | ||
185 | short tx_power1; | |
186 | short tx_power2; | |
187 | }; | |
188 | ||
addc81bd ID |
189 | /* |
190 | * Antenna setup values. | |
191 | */ | |
192 | struct antenna_setup { | |
193 | enum antenna rx; | |
194 | enum antenna tx; | |
195 | }; | |
196 | ||
95ea3627 | 197 | /* |
ebcf26da | 198 | * Quality statistics about the currently active link. |
95ea3627 | 199 | */ |
ebcf26da | 200 | struct link_qual { |
95ea3627 | 201 | /* |
5352ff65 ID |
202 | * Statistics required for Link tuning by driver |
203 | * The rssi value is provided by rt2x00lib during the | |
204 | * link_tuner() callback function. | |
205 | * The false_cca field is filled during the link_stats() | |
206 | * callback function and could be used during the | |
207 | * link_tuner() callback function. | |
95ea3627 | 208 | */ |
5352ff65 | 209 | int rssi; |
95ea3627 ID |
210 | int false_cca; |
211 | ||
212 | /* | |
5352ff65 ID |
213 | * VGC levels |
214 | * Hardware driver will tune the VGC level during each call | |
215 | * to the link_tuner() callback function. This vgc_level is | |
216 | * is determined based on the link quality statistics like | |
217 | * average RSSI and the false CCA count. | |
95ea3627 | 218 | * |
5352ff65 ID |
219 | * In some cases the drivers need to differentiate between |
220 | * the currently "desired" VGC level and the level configured | |
221 | * in the hardware. The latter is important to reduce the | |
222 | * number of BBP register reads to reduce register access | |
223 | * overhead. For this reason we store both values here. | |
224 | */ | |
225 | u8 vgc_level; | |
226 | u8 vgc_level_reg; | |
227 | ||
228 | /* | |
229 | * Statistics required for Signal quality calculation. | |
230 | * These fields might be changed during the link_stats() | |
231 | * callback function. | |
95ea3627 | 232 | */ |
95ea3627 ID |
233 | int rx_success; |
234 | int rx_failed; | |
95ea3627 ID |
235 | int tx_success; |
236 | int tx_failed; | |
ebcf26da ID |
237 | }; |
238 | ||
69f81a2c ID |
239 | /* |
240 | * Antenna settings about the currently active link. | |
241 | */ | |
242 | struct link_ant { | |
243 | /* | |
244 | * Antenna flags | |
245 | */ | |
246 | unsigned int flags; | |
247 | #define ANTENNA_RX_DIVERSITY 0x00000001 | |
248 | #define ANTENNA_TX_DIVERSITY 0x00000002 | |
249 | #define ANTENNA_MODE_SAMPLE 0x00000004 | |
250 | ||
251 | /* | |
252 | * Currently active TX/RX antenna setup. | |
253 | * When software diversity is used, this will indicate | |
254 | * which antenna is actually used at this time. | |
255 | */ | |
256 | struct antenna_setup active; | |
257 | ||
258 | /* | |
193df183 LE |
259 | * RSSI history information for the antenna. |
260 | * Used to determine when to switch antenna | |
261 | * when using software diversity. | |
69f81a2c | 262 | */ |
193df183 | 263 | int rssi_history; |
69f81a2c ID |
264 | |
265 | /* | |
266 | * Current RSSI average of the currently active antenna. | |
267 | * Similar to the avg_rssi in the link_qual structure | |
268 | * this value is updated by using the walking average. | |
269 | */ | |
66679a65 | 270 | struct avg_val rssi_ant; |
69f81a2c ID |
271 | }; |
272 | ||
ebcf26da ID |
273 | /* |
274 | * To optimize the quality of the link we need to store | |
275 | * the quality of received frames and periodically | |
276 | * optimize the link. | |
277 | */ | |
278 | struct link { | |
279 | /* | |
280 | * Link tuner counter | |
281 | * The number of times the link has been tuned | |
282 | * since the radio has been switched on. | |
283 | */ | |
284 | u32 count; | |
285 | ||
286 | /* | |
287 | * Quality measurement values. | |
288 | */ | |
289 | struct link_qual qual; | |
290 | ||
addc81bd | 291 | /* |
69f81a2c | 292 | * TX/RX antenna setup. |
addc81bd | 293 | */ |
69f81a2c | 294 | struct link_ant ant; |
addc81bd | 295 | |
ebcf26da | 296 | /* |
5352ff65 | 297 | * Currently active average RSSI value |
ebcf26da | 298 | */ |
66679a65 | 299 | struct avg_val avg_rssi; |
eb20b4e8 ID |
300 | |
301 | /* | |
5352ff65 ID |
302 | * Currently precalculated percentages of successful |
303 | * TX and RX frames. | |
eb20b4e8 | 304 | */ |
5352ff65 ID |
305 | int rx_percentage; |
306 | int tx_percentage; | |
95ea3627 ID |
307 | |
308 | /* | |
309 | * Work structure for scheduling periodic link tuning. | |
310 | */ | |
311 | struct delayed_work work; | |
312 | }; | |
313 | ||
95ea3627 ID |
314 | /* |
315 | * Interface structure | |
6bb40dd1 ID |
316 | * Per interface configuration details, this structure |
317 | * is allocated as the private data for ieee80211_vif. | |
95ea3627 | 318 | */ |
6bb40dd1 | 319 | struct rt2x00_intf { |
95ea3627 | 320 | /* |
6bb40dd1 ID |
321 | * All fields within the rt2x00_intf structure |
322 | * must be protected with a spinlock. | |
95ea3627 | 323 | */ |
6bb40dd1 | 324 | spinlock_t lock; |
95ea3627 | 325 | |
95ea3627 ID |
326 | /* |
327 | * MAC of the device. | |
328 | */ | |
329 | u8 mac[ETH_ALEN]; | |
330 | ||
331 | /* | |
332 | * BBSID of the AP to associate with. | |
333 | */ | |
334 | u8 bssid[ETH_ALEN]; | |
95ea3627 | 335 | |
17512dc3 IP |
336 | /* |
337 | * beacon->skb must be protected with the mutex. | |
338 | */ | |
339 | struct mutex beacon_skb_mutex; | |
340 | ||
6bb40dd1 ID |
341 | /* |
342 | * Entry in the beacon queue which belongs to | |
343 | * this interface. Each interface has its own | |
344 | * dedicated beacon entry. | |
345 | */ | |
346 | struct queue_entry *beacon; | |
95ea3627 | 347 | |
6bb40dd1 ID |
348 | /* |
349 | * Actions that needed rescheduling. | |
350 | */ | |
351 | unsigned int delayed_flags; | |
352 | #define DELAYED_UPDATE_BEACON 0x00000001 | |
72810379 | 353 | #define DELAYED_CONFIG_ERP 0x00000002 |
a2e1d52a | 354 | #define DELAYED_LED_ASSOC 0x00000004 |
f591fa5d | 355 | |
d4764b29 ID |
356 | /* |
357 | * Software sequence counter, this is only required | |
358 | * for hardware which doesn't support hardware | |
359 | * sequence counting. | |
360 | */ | |
361 | spinlock_t seqlock; | |
f591fa5d | 362 | u16 seqno; |
6bb40dd1 ID |
363 | }; |
364 | ||
365 | static inline struct rt2x00_intf* vif_to_intf(struct ieee80211_vif *vif) | |
95ea3627 | 366 | { |
6bb40dd1 | 367 | return (struct rt2x00_intf *)vif->drv_priv; |
95ea3627 ID |
368 | } |
369 | ||
31562e80 ID |
370 | /** |
371 | * struct hw_mode_spec: Hardware specifications structure | |
372 | * | |
95ea3627 ID |
373 | * Details about the supported modes, rates and channels |
374 | * of a particular chipset. This is used by rt2x00lib | |
375 | * to build the ieee80211_hw_mode array for mac80211. | |
31562e80 ID |
376 | * |
377 | * @supported_bands: Bitmask contained the supported bands (2.4GHz, 5.2GHz). | |
378 | * @supported_rates: Rate types which are supported (CCK, OFDM). | |
379 | * @num_channels: Number of supported channels. This is used as array size | |
380 | * for @tx_power_a, @tx_power_bg and @channels. | |
9a46d44e | 381 | * @channels: Device/chipset specific channel values (See &struct rf_channel). |
8c5e7a5f | 382 | * @channels_info: Additional information for channels (See &struct channel_info). |
35f00cfc | 383 | * @ht: Driver HT Capabilities (See &ieee80211_sta_ht_cap). |
95ea3627 ID |
384 | */ |
385 | struct hw_mode_spec { | |
31562e80 ID |
386 | unsigned int supported_bands; |
387 | #define SUPPORT_BAND_2GHZ 0x00000001 | |
388 | #define SUPPORT_BAND_5GHZ 0x00000002 | |
389 | ||
390 | unsigned int supported_rates; | |
391 | #define SUPPORT_RATE_CCK 0x00000001 | |
392 | #define SUPPORT_RATE_OFDM 0x00000002 | |
393 | ||
394 | unsigned int num_channels; | |
395 | const struct rf_channel *channels; | |
8c5e7a5f | 396 | const struct channel_info *channels_info; |
35f00cfc ID |
397 | |
398 | struct ieee80211_sta_ht_cap ht; | |
95ea3627 ID |
399 | }; |
400 | ||
5c58ee51 ID |
401 | /* |
402 | * Configuration structure wrapper around the | |
403 | * mac80211 configuration structure. | |
404 | * When mac80211 configures the driver, rt2x00lib | |
405 | * can precalculate values which are equal for all | |
406 | * rt2x00 drivers. Those values can be stored in here. | |
407 | */ | |
408 | struct rt2x00lib_conf { | |
409 | struct ieee80211_conf *conf; | |
8c5e7a5f | 410 | |
5c58ee51 | 411 | struct rf_channel rf; |
8c5e7a5f | 412 | struct channel_info channel; |
5c58ee51 ID |
413 | }; |
414 | ||
72810379 ID |
415 | /* |
416 | * Configuration structure for erp settings. | |
417 | */ | |
418 | struct rt2x00lib_erp { | |
419 | int short_preamble; | |
e360c4cb | 420 | int cts_protection; |
72810379 ID |
421 | |
422 | int ack_timeout; | |
423 | int ack_consume_time; | |
e4ea1c40 | 424 | |
881d948c | 425 | u32 basic_rates; |
e4ea1c40 ID |
426 | |
427 | int slot_time; | |
428 | ||
429 | short sifs; | |
430 | short pifs; | |
431 | short difs; | |
432 | short eifs; | |
8a566afe ID |
433 | |
434 | u16 beacon_int; | |
72810379 ID |
435 | }; |
436 | ||
2bb057d0 ID |
437 | /* |
438 | * Configuration structure for hardware encryption. | |
439 | */ | |
440 | struct rt2x00lib_crypto { | |
441 | enum cipher cipher; | |
442 | ||
443 | enum set_key_cmd cmd; | |
444 | const u8 *address; | |
445 | ||
446 | u32 bssidx; | |
447 | u32 aid; | |
448 | ||
449 | u8 key[16]; | |
450 | u8 tx_mic[8]; | |
451 | u8 rx_mic[8]; | |
452 | }; | |
453 | ||
6bb40dd1 ID |
454 | /* |
455 | * Configuration structure wrapper around the | |
456 | * rt2x00 interface configuration handler. | |
457 | */ | |
458 | struct rt2x00intf_conf { | |
459 | /* | |
460 | * Interface type | |
461 | */ | |
05c914fe | 462 | enum nl80211_iftype type; |
6bb40dd1 ID |
463 | |
464 | /* | |
465 | * TSF sync value, this is dependant on the operation type. | |
466 | */ | |
467 | enum tsf_sync sync; | |
468 | ||
469 | /* | |
470 | * The MAC and BSSID addressess are simple array of bytes, | |
471 | * these arrays are little endian, so when sending the addressess | |
472 | * to the drivers, copy the it into a endian-signed variable. | |
473 | * | |
474 | * Note that all devices (except rt2500usb) have 32 bits | |
475 | * register word sizes. This means that whatever variable we | |
476 | * pass _must_ be a multiple of 32 bits. Otherwise the device | |
477 | * might not accept what we are sending to it. | |
478 | * This will also make it easier for the driver to write | |
479 | * the data to the device. | |
480 | */ | |
481 | __le32 mac[2]; | |
482 | __le32 bssid[2]; | |
483 | }; | |
484 | ||
95ea3627 ID |
485 | /* |
486 | * rt2x00lib callback functions. | |
487 | */ | |
488 | struct rt2x00lib_ops { | |
489 | /* | |
490 | * Interrupt handlers. | |
491 | */ | |
492 | irq_handler_t irq_handler; | |
493 | ||
494 | /* | |
495 | * Device init handlers. | |
496 | */ | |
497 | int (*probe_hw) (struct rt2x00_dev *rt2x00dev); | |
498 | char *(*get_firmware_name) (struct rt2x00_dev *rt2x00dev); | |
0cbe0064 ID |
499 | int (*check_firmware) (struct rt2x00_dev *rt2x00dev, |
500 | const u8 *data, const size_t len); | |
501 | int (*load_firmware) (struct rt2x00_dev *rt2x00dev, | |
502 | const u8 *data, const size_t len); | |
95ea3627 ID |
503 | |
504 | /* | |
505 | * Device initialization/deinitialization handlers. | |
506 | */ | |
507 | int (*initialize) (struct rt2x00_dev *rt2x00dev); | |
508 | void (*uninitialize) (struct rt2x00_dev *rt2x00dev); | |
509 | ||
837e7f24 | 510 | /* |
181d6902 | 511 | * queue initialization handlers |
837e7f24 | 512 | */ |
798b7adb ID |
513 | bool (*get_entry_state) (struct queue_entry *entry); |
514 | void (*clear_entry) (struct queue_entry *entry); | |
837e7f24 | 515 | |
95ea3627 ID |
516 | /* |
517 | * Radio control handlers. | |
518 | */ | |
519 | int (*set_device_state) (struct rt2x00_dev *rt2x00dev, | |
520 | enum dev_state state); | |
521 | int (*rfkill_poll) (struct rt2x00_dev *rt2x00dev); | |
ebcf26da ID |
522 | void (*link_stats) (struct rt2x00_dev *rt2x00dev, |
523 | struct link_qual *qual); | |
5352ff65 ID |
524 | void (*reset_tuner) (struct rt2x00_dev *rt2x00dev, |
525 | struct link_qual *qual); | |
526 | void (*link_tuner) (struct rt2x00_dev *rt2x00dev, | |
527 | struct link_qual *qual, const u32 count); | |
95ea3627 ID |
528 | |
529 | /* | |
530 | * TX control handlers | |
531 | */ | |
532 | void (*write_tx_desc) (struct rt2x00_dev *rt2x00dev, | |
dd3193e1 | 533 | struct sk_buff *skb, |
61486e0f | 534 | struct txentry_desc *txdesc); |
6db3786a | 535 | int (*write_tx_data) (struct queue_entry *entry); |
bd88a781 | 536 | void (*write_beacon) (struct queue_entry *entry); |
f1ca2167 | 537 | int (*get_tx_data_len) (struct queue_entry *entry); |
95ea3627 | 538 | void (*kick_tx_queue) (struct rt2x00_dev *rt2x00dev, |
e58c6aca | 539 | const enum data_queue_qid queue); |
a2c9b652 ID |
540 | void (*kill_tx_queue) (struct rt2x00_dev *rt2x00dev, |
541 | const enum data_queue_qid queue); | |
95ea3627 ID |
542 | |
543 | /* | |
544 | * RX control handlers | |
545 | */ | |
181d6902 ID |
546 | void (*fill_rxdone) (struct queue_entry *entry, |
547 | struct rxdone_entry_desc *rxdesc); | |
95ea3627 ID |
548 | |
549 | /* | |
550 | * Configuration handlers. | |
551 | */ | |
2bb057d0 ID |
552 | int (*config_shared_key) (struct rt2x00_dev *rt2x00dev, |
553 | struct rt2x00lib_crypto *crypto, | |
554 | struct ieee80211_key_conf *key); | |
555 | int (*config_pairwise_key) (struct rt2x00_dev *rt2x00dev, | |
556 | struct rt2x00lib_crypto *crypto, | |
557 | struct ieee80211_key_conf *key); | |
3a643d24 ID |
558 | void (*config_filter) (struct rt2x00_dev *rt2x00dev, |
559 | const unsigned int filter_flags); | |
6bb40dd1 ID |
560 | void (*config_intf) (struct rt2x00_dev *rt2x00dev, |
561 | struct rt2x00_intf *intf, | |
562 | struct rt2x00intf_conf *conf, | |
563 | const unsigned int flags); | |
564 | #define CONFIG_UPDATE_TYPE ( 1 << 1 ) | |
565 | #define CONFIG_UPDATE_MAC ( 1 << 2 ) | |
566 | #define CONFIG_UPDATE_BSSID ( 1 << 3 ) | |
567 | ||
3a643d24 ID |
568 | void (*config_erp) (struct rt2x00_dev *rt2x00dev, |
569 | struct rt2x00lib_erp *erp); | |
e4ea1c40 ID |
570 | void (*config_ant) (struct rt2x00_dev *rt2x00dev, |
571 | struct antenna_setup *ant); | |
6bb40dd1 ID |
572 | void (*config) (struct rt2x00_dev *rt2x00dev, |
573 | struct rt2x00lib_conf *libconf, | |
e4ea1c40 | 574 | const unsigned int changed_flags); |
95ea3627 ID |
575 | }; |
576 | ||
577 | /* | |
578 | * rt2x00 driver callback operation structure. | |
579 | */ | |
580 | struct rt2x00_ops { | |
581 | const char *name; | |
6bb40dd1 ID |
582 | const unsigned int max_sta_intf; |
583 | const unsigned int max_ap_intf; | |
95ea3627 ID |
584 | const unsigned int eeprom_size; |
585 | const unsigned int rf_size; | |
61448f88 | 586 | const unsigned int tx_queues; |
181d6902 ID |
587 | const struct data_queue_desc *rx; |
588 | const struct data_queue_desc *tx; | |
589 | const struct data_queue_desc *bcn; | |
590 | const struct data_queue_desc *atim; | |
95ea3627 ID |
591 | const struct rt2x00lib_ops *lib; |
592 | const struct ieee80211_ops *hw; | |
593 | #ifdef CONFIG_RT2X00_LIB_DEBUGFS | |
594 | const struct rt2x00debug *debugfs; | |
595 | #endif /* CONFIG_RT2X00_LIB_DEBUGFS */ | |
596 | }; | |
597 | ||
483272f5 ID |
598 | /* |
599 | * rt2x00 device flags | |
600 | */ | |
601 | enum rt2x00_flags { | |
602 | /* | |
603 | * Device state flags | |
604 | */ | |
0262ab0d ID |
605 | DEVICE_STATE_PRESENT, |
606 | DEVICE_STATE_REGISTERED_HW, | |
607 | DEVICE_STATE_INITIALIZED, | |
608 | DEVICE_STATE_STARTED, | |
0262ab0d | 609 | DEVICE_STATE_ENABLED_RADIO, |
483272f5 ID |
610 | |
611 | /* | |
2bb057d0 | 612 | * Driver requirements |
483272f5 ID |
613 | */ |
614 | DRIVER_REQUIRE_FIRMWARE, | |
181d6902 ID |
615 | DRIVER_REQUIRE_BEACON_GUARD, |
616 | DRIVER_REQUIRE_ATIM_QUEUE, | |
3a643d24 | 617 | DRIVER_REQUIRE_SCHEDULED, |
c4da0048 | 618 | DRIVER_REQUIRE_DMA, |
3f787bd6 | 619 | DRIVER_REQUIRE_COPY_IV, |
9f166171 | 620 | DRIVER_REQUIRE_L2PAD, |
483272f5 ID |
621 | |
622 | /* | |
2bb057d0 | 623 | * Driver features |
483272f5 ID |
624 | */ |
625 | CONFIG_SUPPORT_HW_BUTTON, | |
2bb057d0 | 626 | CONFIG_SUPPORT_HW_CRYPTO, |
1afcfd54 IP |
627 | DRIVER_SUPPORT_CONTROL_FILTERS, |
628 | DRIVER_SUPPORT_CONTROL_FILTER_PSPOLL, | |
2bb057d0 ID |
629 | |
630 | /* | |
631 | * Driver configuration | |
632 | */ | |
483272f5 ID |
633 | CONFIG_FRAME_TYPE, |
634 | CONFIG_RF_SEQUENCE, | |
635 | CONFIG_EXTERNAL_LNA_A, | |
636 | CONFIG_EXTERNAL_LNA_BG, | |
637 | CONFIG_DOUBLE_ANTENNA, | |
638 | CONFIG_DISABLE_LINK_TUNING, | |
35f00cfc | 639 | CONFIG_CHANNEL_HT40, |
483272f5 ID |
640 | }; |
641 | ||
95ea3627 ID |
642 | /* |
643 | * rt2x00 device structure. | |
644 | */ | |
645 | struct rt2x00_dev { | |
646 | /* | |
647 | * Device structure. | |
648 | * The structure stored in here depends on the | |
649 | * system bus (PCI or USB). | |
650 | * When accessing this variable, the rt2x00dev_{pci,usb} | |
49513481 | 651 | * macros should be used for correct typecasting. |
95ea3627 | 652 | */ |
14a3bf89 | 653 | struct device *dev; |
95ea3627 ID |
654 | |
655 | /* | |
656 | * Callback functions. | |
657 | */ | |
658 | const struct rt2x00_ops *ops; | |
659 | ||
660 | /* | |
661 | * IEEE80211 control structure. | |
662 | */ | |
663 | struct ieee80211_hw *hw; | |
8318d78a JB |
664 | struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS]; |
665 | enum ieee80211_band curr_band; | |
95ea3627 | 666 | |
95ea3627 ID |
667 | /* |
668 | * If enabled, the debugfs interface structures | |
669 | * required for deregistration of debugfs. | |
670 | */ | |
671 | #ifdef CONFIG_RT2X00_LIB_DEBUGFS | |
4d8dd66c | 672 | struct rt2x00debug_intf *debugfs_intf; |
95ea3627 ID |
673 | #endif /* CONFIG_RT2X00_LIB_DEBUGFS */ |
674 | ||
a9450b70 ID |
675 | /* |
676 | * LED structure for changing the LED status | |
677 | * by mac8011 or the kernel. | |
678 | */ | |
679 | #ifdef CONFIG_RT2X00_LIB_LEDS | |
a9450b70 ID |
680 | struct rt2x00_led led_radio; |
681 | struct rt2x00_led led_assoc; | |
682 | struct rt2x00_led led_qual; | |
683 | u16 led_mcu_reg; | |
684 | #endif /* CONFIG_RT2X00_LIB_LEDS */ | |
685 | ||
95ea3627 ID |
686 | /* |
687 | * Device flags. | |
688 | * In these flags the current status and some | |
689 | * of the device capabilities are stored. | |
690 | */ | |
691 | unsigned long flags; | |
95ea3627 | 692 | |
440ddada ID |
693 | /* |
694 | * Device information, Bus IRQ and name (PCI, SoC) | |
695 | */ | |
696 | int irq; | |
697 | const char *name; | |
698 | ||
95ea3627 ID |
699 | /* |
700 | * Chipset identification. | |
701 | */ | |
702 | struct rt2x00_chip chip; | |
703 | ||
704 | /* | |
705 | * hw capability specifications. | |
706 | */ | |
707 | struct hw_mode_spec spec; | |
708 | ||
addc81bd ID |
709 | /* |
710 | * This is the default TX/RX antenna setup as indicated | |
6d64360a | 711 | * by the device's EEPROM. |
addc81bd ID |
712 | */ |
713 | struct antenna_setup default_ant; | |
714 | ||
95ea3627 ID |
715 | /* |
716 | * Register pointers | |
21795094 ID |
717 | * csr.base: CSR base register address. (PCI) |
718 | * csr.cache: CSR cache for usb_control_msg. (USB) | |
95ea3627 | 719 | */ |
21795094 ID |
720 | union csr { |
721 | void __iomem *base; | |
722 | void *cache; | |
723 | } csr; | |
95ea3627 | 724 | |
3d82346c | 725 | /* |
8ff48a8b ID |
726 | * Mutex to protect register accesses. |
727 | * For PCI and USB devices it protects against concurrent indirect | |
728 | * register access (BBP, RF, MCU) since accessing those | |
729 | * registers require multiple calls to the CSR registers. | |
730 | * For USB devices it also protects the csr_cache since that | |
731 | * field is used for normal CSR access and it cannot support | |
732 | * multiple callers simultaneously. | |
733 | */ | |
734 | struct mutex csr_mutex; | |
3d82346c | 735 | |
3c4f2085 ID |
736 | /* |
737 | * Current packet filter configuration for the device. | |
738 | * This contains all currently active FIF_* flags send | |
739 | * to us by mac80211 during configure_filter(). | |
740 | */ | |
741 | unsigned int packet_filter; | |
742 | ||
95ea3627 | 743 | /* |
6bb40dd1 ID |
744 | * Interface details: |
745 | * - Open ap interface count. | |
746 | * - Open sta interface count. | |
747 | * - Association count. | |
95ea3627 | 748 | */ |
6bb40dd1 ID |
749 | unsigned int intf_ap_count; |
750 | unsigned int intf_sta_count; | |
751 | unsigned int intf_associated; | |
95ea3627 ID |
752 | |
753 | /* | |
754 | * Link quality | |
755 | */ | |
756 | struct link link; | |
757 | ||
758 | /* | |
759 | * EEPROM data. | |
760 | */ | |
761 | __le16 *eeprom; | |
762 | ||
763 | /* | |
764 | * Active RF register values. | |
765 | * These are stored here so we don't need | |
766 | * to read the rf registers and can directly | |
767 | * use this value instead. | |
768 | * This field should be accessed by using | |
769 | * rt2x00_rf_read() and rt2x00_rf_write(). | |
770 | */ | |
771 | u32 *rf; | |
772 | ||
ba2ab471 ID |
773 | /* |
774 | * LNA gain | |
775 | */ | |
776 | short lna_gain; | |
777 | ||
95ea3627 ID |
778 | /* |
779 | * Current TX power value. | |
780 | */ | |
781 | u16 tx_power; | |
782 | ||
42c82857 ID |
783 | /* |
784 | * Current retry values. | |
785 | */ | |
786 | u8 short_retry; | |
787 | u8 long_retry; | |
788 | ||
95ea3627 ID |
789 | /* |
790 | * Rssi <-> Dbm offset | |
791 | */ | |
792 | u8 rssi_offset; | |
793 | ||
794 | /* | |
795 | * Frequency offset (for rt61pci & rt73usb). | |
796 | */ | |
797 | u8 freq_offset; | |
798 | ||
35f00cfc ID |
799 | /* |
800 | * Calibration information (for rt2800usb & rt2800pci). | |
801 | * [0] -> BW20 | |
802 | * [1] -> BW40 | |
803 | */ | |
804 | u8 calibration[2]; | |
805 | ||
6b347bff ID |
806 | /* |
807 | * Beacon interval. | |
808 | */ | |
809 | u16 beacon_int; | |
810 | ||
95ea3627 ID |
811 | /* |
812 | * Low level statistics which will have | |
813 | * to be kept up to date while device is running. | |
814 | */ | |
815 | struct ieee80211_low_level_stats low_level_stats; | |
816 | ||
817 | /* | |
818 | * RX configuration information. | |
819 | */ | |
820 | struct ieee80211_rx_status rx_status; | |
821 | ||
822 | /* | |
4150c572 | 823 | * Scheduled work. |
8e260c22 ID |
824 | * NOTE: intf_work will use ieee80211_iterate_active_interfaces() |
825 | * which means it cannot be placed on the hw->workqueue | |
826 | * due to RTNL locking requirements. | |
95ea3627 | 827 | */ |
6bb40dd1 | 828 | struct work_struct intf_work; |
4150c572 | 829 | struct work_struct filter_work; |
95ea3627 ID |
830 | |
831 | /* | |
181d6902 ID |
832 | * Data queue arrays for RX, TX and Beacon. |
833 | * The Beacon array also contains the Atim queue | |
95ea3627 ID |
834 | * if that is supported by the device. |
835 | */ | |
b869767b | 836 | unsigned int data_queues; |
181d6902 ID |
837 | struct data_queue *rx; |
838 | struct data_queue *tx; | |
839 | struct data_queue *bcn; | |
95ea3627 ID |
840 | |
841 | /* | |
842 | * Firmware image. | |
843 | */ | |
844 | const struct firmware *fw; | |
845 | }; | |
846 | ||
95ea3627 ID |
847 | /* |
848 | * Generic RF access. | |
849 | * The RF is being accessed by word index. | |
850 | */ | |
0e14f6d3 | 851 | static inline void rt2x00_rf_read(struct rt2x00_dev *rt2x00dev, |
95ea3627 ID |
852 | const unsigned int word, u32 *data) |
853 | { | |
6b26dead PR |
854 | BUG_ON(word < 1 || word > rt2x00dev->ops->rf_size / sizeof(u32)); |
855 | *data = rt2x00dev->rf[word - 1]; | |
95ea3627 ID |
856 | } |
857 | ||
0e14f6d3 | 858 | static inline void rt2x00_rf_write(struct rt2x00_dev *rt2x00dev, |
95ea3627 ID |
859 | const unsigned int word, u32 data) |
860 | { | |
6b26dead PR |
861 | BUG_ON(word < 1 || word > rt2x00dev->ops->rf_size / sizeof(u32)); |
862 | rt2x00dev->rf[word - 1] = data; | |
95ea3627 ID |
863 | } |
864 | ||
865 | /* | |
866 | * Generic EEPROM access. | |
867 | * The EEPROM is being accessed by word index. | |
868 | */ | |
0e14f6d3 | 869 | static inline void *rt2x00_eeprom_addr(struct rt2x00_dev *rt2x00dev, |
95ea3627 ID |
870 | const unsigned int word) |
871 | { | |
872 | return (void *)&rt2x00dev->eeprom[word]; | |
873 | } | |
874 | ||
0e14f6d3 | 875 | static inline void rt2x00_eeprom_read(struct rt2x00_dev *rt2x00dev, |
95ea3627 ID |
876 | const unsigned int word, u16 *data) |
877 | { | |
878 | *data = le16_to_cpu(rt2x00dev->eeprom[word]); | |
879 | } | |
880 | ||
0e14f6d3 | 881 | static inline void rt2x00_eeprom_write(struct rt2x00_dev *rt2x00dev, |
95ea3627 ID |
882 | const unsigned int word, u16 data) |
883 | { | |
884 | rt2x00dev->eeprom[word] = cpu_to_le16(data); | |
885 | } | |
886 | ||
887 | /* | |
888 | * Chipset handlers | |
889 | */ | |
890 | static inline void rt2x00_set_chip(struct rt2x00_dev *rt2x00dev, | |
891 | const u16 rt, const u16 rf, const u32 rev) | |
892 | { | |
893 | INFO(rt2x00dev, | |
894 | "Chipset detected - rt: %04x, rf: %04x, rev: %08x.\n", | |
895 | rt, rf, rev); | |
896 | ||
897 | rt2x00dev->chip.rt = rt; | |
898 | rt2x00dev->chip.rf = rf; | |
899 | rt2x00dev->chip.rev = rev; | |
900 | } | |
901 | ||
440ddada ID |
902 | static inline void rt2x00_set_chip_rt(struct rt2x00_dev *rt2x00dev, |
903 | const u16 rt) | |
904 | { | |
905 | rt2x00dev->chip.rt = rt; | |
906 | } | |
907 | ||
908 | static inline void rt2x00_set_chip_rf(struct rt2x00_dev *rt2x00dev, | |
909 | const u16 rf, const u32 rev) | |
910 | { | |
911 | rt2x00_set_chip(rt2x00dev, rt2x00dev->chip.rt, rf, rev); | |
912 | } | |
913 | ||
95ea3627 ID |
914 | static inline char rt2x00_rt(const struct rt2x00_chip *chipset, const u16 chip) |
915 | { | |
916 | return (chipset->rt == chip); | |
917 | } | |
918 | ||
919 | static inline char rt2x00_rf(const struct rt2x00_chip *chipset, const u16 chip) | |
920 | { | |
921 | return (chipset->rf == chip); | |
922 | } | |
923 | ||
6ba265e9 | 924 | static inline u32 rt2x00_rev(const struct rt2x00_chip *chipset) |
95ea3627 ID |
925 | { |
926 | return chipset->rev; | |
927 | } | |
928 | ||
358623c2 ID |
929 | static inline bool rt2x00_check_rev(const struct rt2x00_chip *chipset, |
930 | const u32 mask, const u32 rev) | |
95ea3627 | 931 | { |
358623c2 | 932 | return ((chipset->rev & mask) == rev); |
95ea3627 ID |
933 | } |
934 | ||
239c249d | 935 | /** |
c4da0048 GW |
936 | * rt2x00queue_map_txskb - Map a skb into DMA for TX purposes. |
937 | * @rt2x00dev: Pointer to &struct rt2x00_dev. | |
938 | * @skb: The skb to map. | |
239c249d | 939 | */ |
c4da0048 | 940 | void rt2x00queue_map_txskb(struct rt2x00_dev *rt2x00dev, struct sk_buff *skb); |
239c249d | 941 | |
181d6902 | 942 | /** |
e58c6aca | 943 | * rt2x00queue_get_queue - Convert queue index to queue pointer |
181d6902 | 944 | * @rt2x00dev: Pointer to &struct rt2x00_dev. |
e58c6aca | 945 | * @queue: rt2x00 queue index (see &enum data_queue_qid). |
95ea3627 | 946 | */ |
181d6902 | 947 | struct data_queue *rt2x00queue_get_queue(struct rt2x00_dev *rt2x00dev, |
e58c6aca | 948 | const enum data_queue_qid queue); |
181d6902 ID |
949 | |
950 | /** | |
951 | * rt2x00queue_get_entry - Get queue entry where the given index points to. | |
9a46d44e | 952 | * @queue: Pointer to &struct data_queue from where we obtain the entry. |
181d6902 ID |
953 | * @index: Index identifier for obtaining the correct index. |
954 | */ | |
955 | struct queue_entry *rt2x00queue_get_entry(struct data_queue *queue, | |
956 | enum queue_index index); | |
957 | ||
95ea3627 ID |
958 | /* |
959 | * Interrupt context handlers. | |
960 | */ | |
961 | void rt2x00lib_beacondone(struct rt2x00_dev *rt2x00dev); | |
181d6902 ID |
962 | void rt2x00lib_txdone(struct queue_entry *entry, |
963 | struct txdone_entry_desc *txdesc); | |
c4da0048 GW |
964 | void rt2x00lib_rxdone(struct rt2x00_dev *rt2x00dev, |
965 | struct queue_entry *entry); | |
95ea3627 | 966 | |
95ea3627 ID |
967 | /* |
968 | * mac80211 handlers. | |
969 | */ | |
e039fa4a | 970 | int rt2x00mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb); |
95ea3627 ID |
971 | int rt2x00mac_start(struct ieee80211_hw *hw); |
972 | void rt2x00mac_stop(struct ieee80211_hw *hw); | |
973 | int rt2x00mac_add_interface(struct ieee80211_hw *hw, | |
974 | struct ieee80211_if_init_conf *conf); | |
975 | void rt2x00mac_remove_interface(struct ieee80211_hw *hw, | |
976 | struct ieee80211_if_init_conf *conf); | |
e8975581 | 977 | int rt2x00mac_config(struct ieee80211_hw *hw, u32 changed); |
3a643d24 ID |
978 | void rt2x00mac_configure_filter(struct ieee80211_hw *hw, |
979 | unsigned int changed_flags, | |
980 | unsigned int *total_flags, | |
3ac64bee | 981 | u64 multicast); |
930c06f2 SS |
982 | int rt2x00mac_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, |
983 | bool set); | |
2bb057d0 ID |
984 | #ifdef CONFIG_RT2X00_LIB_CRYPTO |
985 | int rt2x00mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, | |
dc822b5d | 986 | struct ieee80211_vif *vif, struct ieee80211_sta *sta, |
2bb057d0 ID |
987 | struct ieee80211_key_conf *key); |
988 | #else | |
989 | #define rt2x00mac_set_key NULL | |
990 | #endif /* CONFIG_RT2X00_LIB_CRYPTO */ | |
95ea3627 ID |
991 | int rt2x00mac_get_stats(struct ieee80211_hw *hw, |
992 | struct ieee80211_low_level_stats *stats); | |
993 | int rt2x00mac_get_tx_stats(struct ieee80211_hw *hw, | |
994 | struct ieee80211_tx_queue_stats *stats); | |
471b3efd JB |
995 | void rt2x00mac_bss_info_changed(struct ieee80211_hw *hw, |
996 | struct ieee80211_vif *vif, | |
997 | struct ieee80211_bss_conf *bss_conf, | |
998 | u32 changes); | |
e100bb64 | 999 | int rt2x00mac_conf_tx(struct ieee80211_hw *hw, u16 queue, |
95ea3627 | 1000 | const struct ieee80211_tx_queue_params *params); |
e47a5cdd | 1001 | void rt2x00mac_rfkill_poll(struct ieee80211_hw *hw); |
95ea3627 ID |
1002 | |
1003 | /* | |
1004 | * Driver allocation handlers. | |
1005 | */ | |
1006 | int rt2x00lib_probe_dev(struct rt2x00_dev *rt2x00dev); | |
1007 | void rt2x00lib_remove_dev(struct rt2x00_dev *rt2x00dev); | |
1008 | #ifdef CONFIG_PM | |
1009 | int rt2x00lib_suspend(struct rt2x00_dev *rt2x00dev, pm_message_t state); | |
1010 | int rt2x00lib_resume(struct rt2x00_dev *rt2x00dev); | |
1011 | #endif /* CONFIG_PM */ | |
1012 | ||
1013 | #endif /* RT2X00_H */ |