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Ivo van Doorn95ea3622007-09-25 17:57:13 -07001/*
Gertjan van Wingerde9c9a0d12009-11-08 16:39:55 +01002 Copyright (C) 2004 - 2009 Ivo van Doorn <IvDoorn@gmail.com>
3 Copyright (C) 2004 - 2009 Gertjan van Wingerde <gwingerde@gmail.com>
Ivo van Doorn95ea3622007-09-25 17:57:13 -07004 <http://rt2x00.serialmonkey.com>
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the
18 Free Software Foundation, Inc.,
19 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20 */
21
22/*
23 Module: rt2x00
24 Abstract: rt2x00 global information.
25 */
26
27#ifndef RT2X00_H
28#define RT2X00_H
29
30#include <linux/bitops.h>
Ivo van Doorn95ea3622007-09-25 17:57:13 -070031#include <linux/skbuff.h>
32#include <linux/workqueue.h>
33#include <linux/firmware.h>
Ivo van Doorna9450b72008-02-03 15:53:40 +010034#include <linux/leds.h>
Adam Baker3d823462007-10-27 13:43:29 +020035#include <linux/mutex.h>
Mattias Nissler61af43c2007-11-27 21:50:26 +010036#include <linux/etherdevice.h>
Ivo van Doorncca3e992009-01-03 19:56:02 +010037#include <linux/input-polldev.h>
Ivo van Doorn95ea3622007-09-25 17:57:13 -070038
39#include <net/mac80211.h>
40
41#include "rt2x00debug.h"
Ivo van Doorna9450b72008-02-03 15:53:40 +010042#include "rt2x00leds.h"
Ivo van Doorn95ea3622007-09-25 17:57:13 -070043#include "rt2x00reg.h"
Ivo van Doorn181d6902008-02-05 16:42:23 -050044#include "rt2x00queue.h"
Ivo van Doorn95ea3622007-09-25 17:57:13 -070045
46/*
47 * Module information.
Ivo van Doorn95ea3622007-09-25 17:57:13 -070048 */
Ivo van Doorn754be302008-12-20 11:00:49 +010049#define DRV_VERSION "2.3.0"
Ivo van Doorn95ea3622007-09-25 17:57:13 -070050#define DRV_PROJECT "http://rt2x00.serialmonkey.com"
51
52/*
53 * Debug definitions.
54 * Debug output has to be enabled during compile time.
55 */
56#define DEBUG_PRINTK_MSG(__dev, __kernlvl, __lvl, __msg, __args...) \
57 printk(__kernlvl "%s -> %s: %s - " __msg, \
Harvey Harrisonc94c93d2008-07-28 23:01:34 -070058 wiphy_name((__dev)->hw->wiphy), __func__, __lvl, ##__args)
Ivo van Doorn95ea3622007-09-25 17:57:13 -070059
60#define DEBUG_PRINTK_PROBE(__kernlvl, __lvl, __msg, __args...) \
61 printk(__kernlvl "%s -> %s: %s - " __msg, \
Harvey Harrisonc94c93d2008-07-28 23:01:34 -070062 KBUILD_MODNAME, __func__, __lvl, ##__args)
Ivo van Doorn95ea3622007-09-25 17:57:13 -070063
64#ifdef CONFIG_RT2X00_DEBUG
65#define DEBUG_PRINTK(__dev, __kernlvl, __lvl, __msg, __args...) \
66 DEBUG_PRINTK_MSG(__dev, __kernlvl, __lvl, __msg, ##__args);
67#else
68#define DEBUG_PRINTK(__dev, __kernlvl, __lvl, __msg, __args...) \
69 do { } while (0)
70#endif /* CONFIG_RT2X00_DEBUG */
71
72/*
73 * Various debug levels.
74 * The debug levels PANIC and ERROR both indicate serious problems,
75 * for this reason they should never be ignored.
76 * The special ERROR_PROBE message is for messages that are generated
77 * when the rt2x00_dev is not yet initialized.
78 */
79#define PANIC(__dev, __msg, __args...) \
80 DEBUG_PRINTK_MSG(__dev, KERN_CRIT, "Panic", __msg, ##__args)
81#define ERROR(__dev, __msg, __args...) \
82 DEBUG_PRINTK_MSG(__dev, KERN_ERR, "Error", __msg, ##__args)
83#define ERROR_PROBE(__msg, __args...) \
84 DEBUG_PRINTK_PROBE(KERN_ERR, "Error", __msg, ##__args)
85#define WARNING(__dev, __msg, __args...) \
86 DEBUG_PRINTK(__dev, KERN_WARNING, "Warning", __msg, ##__args)
87#define NOTICE(__dev, __msg, __args...) \
88 DEBUG_PRINTK(__dev, KERN_NOTICE, "Notice", __msg, ##__args)
89#define INFO(__dev, __msg, __args...) \
90 DEBUG_PRINTK(__dev, KERN_INFO, "Info", __msg, ##__args)
91#define DEBUG(__dev, __msg, __args...) \
92 DEBUG_PRINTK(__dev, KERN_DEBUG, "Debug", __msg, ##__args)
93#define EEPROM(__dev, __msg, __args...) \
94 DEBUG_PRINTK(__dev, KERN_DEBUG, "EEPROM recovery", __msg, ##__args)
95
96/*
Ivo van Doornbad13632008-11-09 20:47:00 +010097 * Duration calculations
98 * The rate variable passed is: 100kbs.
99 * To convert from bytes to bits we multiply size with 8,
100 * then the size is multiplied with 10 to make the
101 * real rate -> rate argument correction.
102 */
103#define GET_DURATION(__size, __rate) (((__size) * 8 * 10) / (__rate))
104#define GET_DURATION_RES(__size, __rate)(((__size) * 8 * 10) % (__rate))
105
106/*
Gertjan van Wingerde77e73d12009-12-04 23:47:01 +0100107 * Determine the number of L2 padding bytes required between the header and
108 * the payload.
109 */
110#define L2PAD_SIZE(__hdrlen) (-(__hdrlen) & 3)
111
112/*
Ivo van Doorn9f166172009-04-26 16:08:50 +0200113 * Determine the alignment requirement,
114 * to make sure the 802.11 payload is padded to a 4-byte boundrary
115 * we must determine the address of the payload and calculate the
116 * amount of bytes needed to move the data.
117 */
118#define ALIGN_SIZE(__skb, __header) \
119 ( ((unsigned long)((__skb)->data + (__header))) & 3 )
120
121/*
Gertjan van Wingerde7a4a77b2009-12-30 11:36:30 +0100122 * Constants for extra TX headroom for alignment purposes.
123 */
124#define RT2X00_ALIGN_SIZE 4 /* Only whole frame needs alignment */
125#define RT2X00_L2PAD_SIZE 8 /* Both header & payload need alignment */
126
127/*
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700128 * Standard timing and size defines.
129 * These values should follow the ieee80211 specifications.
130 */
131#define ACK_SIZE 14
132#define IEEE80211_HEADER 24
133#define PLCP 48
134#define BEACON 100
135#define PREAMBLE 144
136#define SHORT_PREAMBLE 72
137#define SLOT_TIME 20
138#define SHORT_SLOT_TIME 9
139#define SIFS 10
140#define PIFS ( SIFS + SLOT_TIME )
141#define SHORT_PIFS ( SIFS + SHORT_SLOT_TIME )
142#define DIFS ( PIFS + SLOT_TIME )
143#define SHORT_DIFS ( SHORT_PIFS + SHORT_SLOT_TIME )
Ivo van Doornf2fdbc42008-07-19 16:16:12 +0200144#define EIFS ( SIFS + DIFS + \
Ivo van Doornbad13632008-11-09 20:47:00 +0100145 GET_DURATION(IEEE80211_HEADER + ACK_SIZE, 10) )
Ivo van Doornf2fdbc42008-07-19 16:16:12 +0200146#define SHORT_EIFS ( SIFS + SHORT_DIFS + \
Ivo van Doornbad13632008-11-09 20:47:00 +0100147 GET_DURATION(IEEE80211_HEADER + ACK_SIZE, 10) )
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700148
149/*
Lars Ericsson66679a62009-08-08 23:54:51 +0200150 * Structure for average calculation
151 * The avg field contains the actual average value,
152 * but avg_weight is internally used during calculations
153 * to prevent rounding errors.
154 */
155struct avg_val {
156 int avg;
157 int avg_weight;
158};
159
Bartlomiej Zolnierkiewicz5822e072009-11-04 18:36:10 +0100160enum rt2x00_chip_intf {
161 RT2X00_CHIP_INTF_PCI,
162 RT2X00_CHIP_INTF_USB,
Gertjan van Wingerdecea90e52010-02-13 20:55:47 +0100163 RT2X00_CHIP_INTF_SOC,
Bartlomiej Zolnierkiewicz5822e072009-11-04 18:36:10 +0100164};
165
Lars Ericsson66679a62009-08-08 23:54:51 +0200166/*
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700167 * Chipset identification
168 * The chipset on the device is composed of a RT and RF chip.
169 * The chipset combination is important for determining device capabilities.
170 */
171struct rt2x00_chip {
172 u16 rt;
Gertjan van Wingerde49e721e2010-02-13 20:55:49 +0100173#define RT2460 0x2460
174#define RT2560 0x2560
175#define RT2570 0x2570
176#define RT2661 0x2661
177#define RT2573 0x2573
178#define RT2860 0x2860 /* 2.4GHz PCI/CB */
179#define RT2870 0x2870
Gertjan van Wingerdee148b4c2010-04-11 14:31:09 +0200180#define RT2872 0x2872 /* WSOC */
Gertjan van Wingerde49e721e2010-02-13 20:55:49 +0100181#define RT2883 0x2883 /* WSOC */
Gertjan van Wingerde49e721e2010-02-13 20:55:49 +0100182#define RT3070 0x3070
183#define RT3071 0x3071
Ivo van Doorna9b3a9f2009-10-15 22:04:14 +0200184#define RT3090 0x3090 /* 2.4GHz PCIe */
Gertjan van Wingerde49e721e2010-02-13 20:55:49 +0100185#define RT3390 0x3390
186#define RT3572 0x3572
Gertjan van Wingerdee148b4c2010-04-11 14:31:09 +0200187#define RT3593 0x3593 /* PCIe */
188#define RT3883 0x3883 /* WSOC */
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700189
190 u16 rf;
Gertjan van Wingerde49e721e2010-02-13 20:55:49 +0100191 u16 rev;
Bartlomiej Zolnierkiewicz5822e072009-11-04 18:36:10 +0100192
193 enum rt2x00_chip_intf intf;
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700194};
195
196/*
197 * RF register values that belong to a particular channel.
198 */
199struct rf_channel {
200 int channel;
201 u32 rf1;
202 u32 rf2;
203 u32 rf3;
204 u32 rf4;
205};
206
207/*
Ivo van Doorn8c5e7a52008-08-04 16:38:47 +0200208 * Channel information structure
209 */
210struct channel_info {
211 unsigned int flags;
212#define GEOGRAPHY_ALLOWED 0x00000001
213
214 short tx_power1;
215 short tx_power2;
216};
217
218/*
Ivo van Doornaddc81bd2007-10-13 16:26:23 +0200219 * Antenna setup values.
220 */
221struct antenna_setup {
222 enum antenna rx;
223 enum antenna tx;
224};
225
226/*
Ivo van Doornebcf26d2007-10-13 16:26:12 +0200227 * Quality statistics about the currently active link.
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700228 */
Ivo van Doornebcf26d2007-10-13 16:26:12 +0200229struct link_qual {
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700230 /*
Ivo van Doorn5352ff62008-12-20 10:54:54 +0100231 * 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.
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700237 */
Ivo van Doorn5352ff62008-12-20 10:54:54 +0100238 int rssi;
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700239 int false_cca;
240
241 /*
Ivo van Doorn5352ff62008-12-20 10:54:54 +0100242 * 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.
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700247 *
Ivo van Doorn5352ff62008-12-20 10:54:54 +0100248 * 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.
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700253 */
Ivo van Doorn5352ff62008-12-20 10:54:54 +0100254 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 */
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700262 int rx_success;
263 int rx_failed;
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700264 int tx_success;
265 int tx_failed;
Ivo van Doornebcf26d2007-10-13 16:26:12 +0200266};
267
268/*
Ivo van Doorn69f81a22007-10-13 16:26:36 +0200269 * Antenna settings about the currently active link.
270 */
271struct 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 /*
Lars Ericsson193df182009-08-08 23:54:24 +0200288 * RSSI history information for the antenna.
289 * Used to determine when to switch antenna
290 * when using software diversity.
Ivo van Doorn69f81a22007-10-13 16:26:36 +0200291 */
Lars Ericsson193df182009-08-08 23:54:24 +0200292 int rssi_history;
Ivo van Doorn69f81a22007-10-13 16:26:36 +0200293
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 */
Lars Ericsson66679a62009-08-08 23:54:51 +0200299 struct avg_val rssi_ant;
Ivo van Doorn69f81a22007-10-13 16:26:36 +0200300};
301
302/*
Ivo van Doornebcf26d2007-10-13 16:26:12 +0200303 * To optimize the quality of the link we need to store
304 * the quality of received frames and periodically
305 * optimize the link.
306 */
307struct 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 /*
Ivo van Doorn69f81a22007-10-13 16:26:36 +0200321 * TX/RX antenna setup.
Ivo van Doornaddc81bd2007-10-13 16:26:23 +0200322 */
Ivo van Doorn69f81a22007-10-13 16:26:36 +0200323 struct link_ant ant;
Ivo van Doornaddc81bd2007-10-13 16:26:23 +0200324
325 /*
Ivo van Doorn5352ff62008-12-20 10:54:54 +0100326 * Currently active average RSSI value
Ivo van Doornebcf26d2007-10-13 16:26:12 +0200327 */
Lars Ericsson66679a62009-08-08 23:54:51 +0200328 struct avg_val avg_rssi;
Ivo van Doorneb20b4e2008-12-20 10:54:22 +0100329
330 /*
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700331 * Work structure for scheduling periodic link tuning.
332 */
333 struct delayed_work work;
334};
335
336/*
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700337 * Interface structure
Ivo van Doorn6bb40dd2008-02-03 15:49:59 +0100338 * Per interface configuration details, this structure
339 * is allocated as the private data for ieee80211_vif.
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700340 */
Ivo van Doorn6bb40dd2008-02-03 15:49:59 +0100341struct rt2x00_intf {
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700342 /*
Ivo van Doorn6bb40dd2008-02-03 15:49:59 +0100343 * All fields within the rt2x00_intf structure
344 * must be protected with a spinlock.
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700345 */
Ivo van Doorn6bb40dd2008-02-03 15:49:59 +0100346 spinlock_t lock;
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700347
348 /*
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700349 * MAC of the device.
350 */
351 u8 mac[ETH_ALEN];
352
353 /*
354 * BBSID of the AP to associate with.
355 */
356 u8 bssid[ETH_ALEN];
Ivo van Doorn6bb40dd2008-02-03 15:49:59 +0100357
358 /*
Igor Perminov17512dc2009-08-08 23:55:18 +0200359 * beacon->skb must be protected with the mutex.
360 */
361 struct mutex beacon_skb_mutex;
362
363 /*
Ivo van Doorn6bb40dd2008-02-03 15:49:59 +0100364 * Entry in the beacon queue which belongs to
365 * this interface. Each interface has its own
366 * dedicated beacon entry.
367 */
368 struct queue_entry *beacon;
369
370 /*
371 * Actions that needed rescheduling.
372 */
373 unsigned int delayed_flags;
374#define DELAYED_UPDATE_BEACON 0x00000001
Johannes Bergf591fa52008-07-10 11:21:26 +0200375
Ivo van Doornd4764b22008-07-28 10:21:16 +0200376 /*
377 * Software sequence counter, this is only required
378 * for hardware which doesn't support hardware
379 * sequence counting.
380 */
381 spinlock_t seqlock;
Johannes Bergf591fa52008-07-10 11:21:26 +0200382 u16 seqno;
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700383};
384
Ivo van Doorn6bb40dd2008-02-03 15:49:59 +0100385static inline struct rt2x00_intf* vif_to_intf(struct ieee80211_vif *vif)
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700386{
Ivo van Doorn6bb40dd2008-02-03 15:49:59 +0100387 return (struct rt2x00_intf *)vif->drv_priv;
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700388}
389
Ivo van Doorn31562e82008-02-17 17:35:05 +0100390/**
391 * struct hw_mode_spec: Hardware specifications structure
392 *
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700393 * Details about the supported modes, rates and channels
394 * of a particular chipset. This is used by rt2x00lib
395 * to build the ieee80211_hw_mode array for mac80211.
Ivo van Doorn31562e82008-02-17 17:35:05 +0100396 *
397 * @supported_bands: Bitmask contained the supported bands (2.4GHz, 5.2GHz).
398 * @supported_rates: Rate types which are supported (CCK, OFDM).
399 * @num_channels: Number of supported channels. This is used as array size
400 * for @tx_power_a, @tx_power_bg and @channels.
Ivo van Doorn9a46d442008-04-21 19:02:17 +0200401 * @channels: Device/chipset specific channel values (See &struct rf_channel).
Ivo van Doorn8c5e7a52008-08-04 16:38:47 +0200402 * @channels_info: Additional information for channels (See &struct channel_info).
Ivo van Doorn35f00cf2009-04-26 16:09:32 +0200403 * @ht: Driver HT Capabilities (See &ieee80211_sta_ht_cap).
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700404 */
405struct hw_mode_spec {
Ivo van Doorn31562e82008-02-17 17:35:05 +0100406 unsigned int supported_bands;
407#define SUPPORT_BAND_2GHZ 0x00000001
408#define SUPPORT_BAND_5GHZ 0x00000002
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700409
Ivo van Doorn31562e82008-02-17 17:35:05 +0100410 unsigned int supported_rates;
411#define SUPPORT_RATE_CCK 0x00000001
412#define SUPPORT_RATE_OFDM 0x00000002
413
414 unsigned int num_channels;
415 const struct rf_channel *channels;
Ivo van Doorn8c5e7a52008-08-04 16:38:47 +0200416 const struct channel_info *channels_info;
Ivo van Doorn35f00cf2009-04-26 16:09:32 +0200417
418 struct ieee80211_sta_ht_cap ht;
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700419};
420
421/*
Ivo van Doorn5c58ee52007-10-06 13:34:52 +0200422 * Configuration structure wrapper around the
423 * mac80211 configuration structure.
424 * When mac80211 configures the driver, rt2x00lib
425 * can precalculate values which are equal for all
426 * rt2x00 drivers. Those values can be stored in here.
427 */
428struct rt2x00lib_conf {
429 struct ieee80211_conf *conf;
Ivo van Doorn8c5e7a52008-08-04 16:38:47 +0200430
Ivo van Doorn5c58ee52007-10-06 13:34:52 +0200431 struct rf_channel rf;
Ivo van Doorn8c5e7a52008-08-04 16:38:47 +0200432 struct channel_info channel;
Ivo van Doorn5c58ee52007-10-06 13:34:52 +0200433};
434
435/*
Ivo van Doorn72810372008-03-09 22:46:18 +0100436 * Configuration structure for erp settings.
437 */
438struct rt2x00lib_erp {
439 int short_preamble;
Ivo van Doorne360c4c2008-07-09 15:12:06 +0200440 int cts_protection;
Ivo van Doorn72810372008-03-09 22:46:18 +0100441
Johannes Berg881d9482009-01-21 15:13:48 +0100442 u32 basic_rates;
Ivo van Doorne4ea1c42008-10-29 17:17:57 +0100443
444 int slot_time;
445
446 short sifs;
447 short pifs;
448 short difs;
449 short eifs;
Ivo van Doorn8a566af2009-05-21 19:16:46 +0200450
451 u16 beacon_int;
Ivo van Doorn72810372008-03-09 22:46:18 +0100452};
453
454/*
Ivo van Doorn2bb057d2008-08-04 16:37:44 +0200455 * Configuration structure for hardware encryption.
456 */
457struct rt2x00lib_crypto {
458 enum cipher cipher;
459
460 enum set_key_cmd cmd;
461 const u8 *address;
462
463 u32 bssidx;
464 u32 aid;
465
466 u8 key[16];
467 u8 tx_mic[8];
468 u8 rx_mic[8];
469};
470
471/*
Ivo van Doorn6bb40dd2008-02-03 15:49:59 +0100472 * Configuration structure wrapper around the
473 * rt2x00 interface configuration handler.
474 */
475struct rt2x00intf_conf {
476 /*
477 * Interface type
478 */
Johannes Berg05c914f2008-09-11 00:01:58 +0200479 enum nl80211_iftype type;
Ivo van Doorn6bb40dd2008-02-03 15:49:59 +0100480
481 /*
482 * TSF sync value, this is dependant on the operation type.
483 */
484 enum tsf_sync sync;
485
486 /*
487 * The MAC and BSSID addressess are simple array of bytes,
488 * these arrays are little endian, so when sending the addressess
489 * to the drivers, copy the it into a endian-signed variable.
490 *
491 * Note that all devices (except rt2500usb) have 32 bits
492 * register word sizes. This means that whatever variable we
493 * pass _must_ be a multiple of 32 bits. Otherwise the device
494 * might not accept what we are sending to it.
495 * This will also make it easier for the driver to write
496 * the data to the device.
497 */
498 __le32 mac[2];
499 __le32 bssid[2];
500};
501
502/*
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700503 * rt2x00lib callback functions.
504 */
505struct rt2x00lib_ops {
506 /*
507 * Interrupt handlers.
508 */
509 irq_handler_t irq_handler;
510
511 /*
512 * Device init handlers.
513 */
514 int (*probe_hw) (struct rt2x00_dev *rt2x00dev);
515 char *(*get_firmware_name) (struct rt2x00_dev *rt2x00dev);
Ivo van Doorn0cbe0062009-01-28 00:33:47 +0100516 int (*check_firmware) (struct rt2x00_dev *rt2x00dev,
517 const u8 *data, const size_t len);
518 int (*load_firmware) (struct rt2x00_dev *rt2x00dev,
519 const u8 *data, const size_t len);
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700520
521 /*
522 * Device initialization/deinitialization handlers.
523 */
524 int (*initialize) (struct rt2x00_dev *rt2x00dev);
525 void (*uninitialize) (struct rt2x00_dev *rt2x00dev);
526
527 /*
Ivo van Doorn181d6902008-02-05 16:42:23 -0500528 * queue initialization handlers
Ivo van Doorn837e7f22008-01-06 23:41:45 +0100529 */
Ivo van Doorn798b7ad2008-11-08 15:25:33 +0100530 bool (*get_entry_state) (struct queue_entry *entry);
531 void (*clear_entry) (struct queue_entry *entry);
Ivo van Doorn837e7f22008-01-06 23:41:45 +0100532
533 /*
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700534 * Radio control handlers.
535 */
536 int (*set_device_state) (struct rt2x00_dev *rt2x00dev,
537 enum dev_state state);
538 int (*rfkill_poll) (struct rt2x00_dev *rt2x00dev);
Ivo van Doornebcf26d2007-10-13 16:26:12 +0200539 void (*link_stats) (struct rt2x00_dev *rt2x00dev,
540 struct link_qual *qual);
Ivo van Doorn5352ff62008-12-20 10:54:54 +0100541 void (*reset_tuner) (struct rt2x00_dev *rt2x00dev,
542 struct link_qual *qual);
543 void (*link_tuner) (struct rt2x00_dev *rt2x00dev,
544 struct link_qual *qual, const u32 count);
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700545
546 /*
547 * TX control handlers
548 */
549 void (*write_tx_desc) (struct rt2x00_dev *rt2x00dev,
Ivo van Doorndd3193e2008-01-06 23:41:10 +0100550 struct sk_buff *skb,
Ivo van Doorn61486e02008-05-10 13:42:31 +0200551 struct txentry_desc *txdesc);
Ivo van Doorn6db37862008-06-06 22:50:28 +0200552 int (*write_tx_data) (struct queue_entry *entry);
Ivo van Doornbd88a782008-07-09 15:12:44 +0200553 void (*write_beacon) (struct queue_entry *entry);
Ivo van Doornf1ca2162008-11-13 23:07:33 +0100554 int (*get_tx_data_len) (struct queue_entry *entry);
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700555 void (*kick_tx_queue) (struct rt2x00_dev *rt2x00dev,
Ivo van Doorne58c6ac2008-04-21 19:00:47 +0200556 const enum data_queue_qid queue);
Ivo van Doorna2c9b652009-01-28 00:32:33 +0100557 void (*kill_tx_queue) (struct rt2x00_dev *rt2x00dev,
558 const enum data_queue_qid queue);
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700559
560 /*
561 * RX control handlers
562 */
Ivo van Doorn181d6902008-02-05 16:42:23 -0500563 void (*fill_rxdone) (struct queue_entry *entry,
564 struct rxdone_entry_desc *rxdesc);
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700565
566 /*
567 * Configuration handlers.
568 */
Ivo van Doorn2bb057d2008-08-04 16:37:44 +0200569 int (*config_shared_key) (struct rt2x00_dev *rt2x00dev,
570 struct rt2x00lib_crypto *crypto,
571 struct ieee80211_key_conf *key);
572 int (*config_pairwise_key) (struct rt2x00_dev *rt2x00dev,
573 struct rt2x00lib_crypto *crypto,
574 struct ieee80211_key_conf *key);
Ivo van Doorn3a643d22008-03-25 14:13:18 +0100575 void (*config_filter) (struct rt2x00_dev *rt2x00dev,
576 const unsigned int filter_flags);
Ivo van Doorn6bb40dd2008-02-03 15:49:59 +0100577 void (*config_intf) (struct rt2x00_dev *rt2x00dev,
578 struct rt2x00_intf *intf,
579 struct rt2x00intf_conf *conf,
580 const unsigned int flags);
581#define CONFIG_UPDATE_TYPE ( 1 << 1 )
582#define CONFIG_UPDATE_MAC ( 1 << 2 )
583#define CONFIG_UPDATE_BSSID ( 1 << 3 )
584
Ivo van Doorn3a643d22008-03-25 14:13:18 +0100585 void (*config_erp) (struct rt2x00_dev *rt2x00dev,
586 struct rt2x00lib_erp *erp);
Ivo van Doorne4ea1c42008-10-29 17:17:57 +0100587 void (*config_ant) (struct rt2x00_dev *rt2x00dev,
588 struct antenna_setup *ant);
Ivo van Doorn6bb40dd2008-02-03 15:49:59 +0100589 void (*config) (struct rt2x00_dev *rt2x00dev,
590 struct rt2x00lib_conf *libconf,
Ivo van Doorne4ea1c42008-10-29 17:17:57 +0100591 const unsigned int changed_flags);
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700592};
593
594/*
595 * rt2x00 driver callback operation structure.
596 */
597struct rt2x00_ops {
598 const char *name;
Ivo van Doorn6bb40dd2008-02-03 15:49:59 +0100599 const unsigned int max_sta_intf;
600 const unsigned int max_ap_intf;
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700601 const unsigned int eeprom_size;
602 const unsigned int rf_size;
Gertjan van Wingerde61448f82008-05-10 13:43:33 +0200603 const unsigned int tx_queues;
Gertjan van Wingerdee6218cc2009-11-23 22:44:52 +0100604 const unsigned int extra_tx_headroom;
Ivo van Doorn181d6902008-02-05 16:42:23 -0500605 const struct data_queue_desc *rx;
606 const struct data_queue_desc *tx;
607 const struct data_queue_desc *bcn;
608 const struct data_queue_desc *atim;
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700609 const struct rt2x00lib_ops *lib;
610 const struct ieee80211_ops *hw;
611#ifdef CONFIG_RT2X00_LIB_DEBUGFS
612 const struct rt2x00debug *debugfs;
613#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
614};
615
616/*
Ivo van Doorn483272f2007-10-06 14:13:06 +0200617 * rt2x00 device flags
618 */
619enum rt2x00_flags {
620 /*
621 * Device state flags
622 */
Ivo van Doorn0262ab02008-08-29 21:04:26 +0200623 DEVICE_STATE_PRESENT,
624 DEVICE_STATE_REGISTERED_HW,
625 DEVICE_STATE_INITIALIZED,
626 DEVICE_STATE_STARTED,
Ivo van Doorn0262ab02008-08-29 21:04:26 +0200627 DEVICE_STATE_ENABLED_RADIO,
Ivo van Doorn483272f2007-10-06 14:13:06 +0200628
629 /*
Ivo van Doorn2bb057d2008-08-04 16:37:44 +0200630 * Driver requirements
Ivo van Doorn483272f2007-10-06 14:13:06 +0200631 */
632 DRIVER_REQUIRE_FIRMWARE,
Ivo van Doorn181d6902008-02-05 16:42:23 -0500633 DRIVER_REQUIRE_BEACON_GUARD,
634 DRIVER_REQUIRE_ATIM_QUEUE,
Gertjan van Wingerdec4da0042008-06-16 19:56:31 +0200635 DRIVER_REQUIRE_DMA,
Ivo van Doorn3f787bd2008-12-20 10:56:36 +0100636 DRIVER_REQUIRE_COPY_IV,
Ivo van Doorn9f166172009-04-26 16:08:50 +0200637 DRIVER_REQUIRE_L2PAD,
Ivo van Doorn483272f2007-10-06 14:13:06 +0200638
639 /*
Ivo van Doorn2bb057d2008-08-04 16:37:44 +0200640 * Driver features
Ivo van Doorn483272f2007-10-06 14:13:06 +0200641 */
642 CONFIG_SUPPORT_HW_BUTTON,
Ivo van Doorn2bb057d2008-08-04 16:37:44 +0200643 CONFIG_SUPPORT_HW_CRYPTO,
Igor Perminov1afcfd542009-08-08 23:55:55 +0200644 DRIVER_SUPPORT_CONTROL_FILTERS,
645 DRIVER_SUPPORT_CONTROL_FILTER_PSPOLL,
Ivo van Doorn2bb057d2008-08-04 16:37:44 +0200646
647 /*
648 * Driver configuration
649 */
Ivo van Doorn483272f2007-10-06 14:13:06 +0200650 CONFIG_FRAME_TYPE,
651 CONFIG_RF_SEQUENCE,
652 CONFIG_EXTERNAL_LNA_A,
653 CONFIG_EXTERNAL_LNA_BG,
654 CONFIG_DOUBLE_ANTENNA,
655 CONFIG_DISABLE_LINK_TUNING,
Ivo van Doorn35f00cf2009-04-26 16:09:32 +0200656 CONFIG_CHANNEL_HT40,
Ivo van Doorn483272f2007-10-06 14:13:06 +0200657};
658
659/*
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700660 * rt2x00 device structure.
661 */
662struct rt2x00_dev {
663 /*
664 * Device structure.
665 * The structure stored in here depends on the
666 * system bus (PCI or USB).
667 * When accessing this variable, the rt2x00dev_{pci,usb}
Luis Correia49513482009-07-17 21:39:19 +0200668 * macros should be used for correct typecasting.
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700669 */
Gertjan van Wingerde14a3bf82008-06-16 19:55:43 +0200670 struct device *dev;
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700671
672 /*
673 * Callback functions.
674 */
675 const struct rt2x00_ops *ops;
676
677 /*
678 * IEEE80211 control structure.
679 */
680 struct ieee80211_hw *hw;
Johannes Berg8318d782008-01-24 19:38:38 +0100681 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
682 enum ieee80211_band curr_band;
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700683
684 /*
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700685 * If enabled, the debugfs interface structures
686 * required for deregistration of debugfs.
687 */
688#ifdef CONFIG_RT2X00_LIB_DEBUGFS
Ivo van Doorn4d8dd662007-11-27 21:49:29 +0100689 struct rt2x00debug_intf *debugfs_intf;
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700690#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
691
692 /*
Ivo van Doorna9450b72008-02-03 15:53:40 +0100693 * LED structure for changing the LED status
694 * by mac8011 or the kernel.
695 */
696#ifdef CONFIG_RT2X00_LIB_LEDS
Ivo van Doorna9450b72008-02-03 15:53:40 +0100697 struct rt2x00_led led_radio;
698 struct rt2x00_led led_assoc;
699 struct rt2x00_led led_qual;
700 u16 led_mcu_reg;
701#endif /* CONFIG_RT2X00_LIB_LEDS */
702
703 /*
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700704 * Device flags.
705 * In these flags the current status and some
706 * of the device capabilities are stored.
707 */
708 unsigned long flags;
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700709
710 /*
Ivo van Doorn440ddada2009-03-28 20:51:24 +0100711 * Device information, Bus IRQ and name (PCI, SoC)
712 */
713 int irq;
714 const char *name;
715
716 /*
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700717 * Chipset identification.
718 */
719 struct rt2x00_chip chip;
720
721 /*
722 * hw capability specifications.
723 */
724 struct hw_mode_spec spec;
725
726 /*
Ivo van Doornaddc81bd2007-10-13 16:26:23 +0200727 * This is the default TX/RX antenna setup as indicated
Ivo van Doorn6d643602008-11-02 00:38:10 +0100728 * by the device's EEPROM.
Ivo van Doornaddc81bd2007-10-13 16:26:23 +0200729 */
730 struct antenna_setup default_ant;
731
732 /*
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700733 * Register pointers
Ivo van Doorn21795092008-02-10 22:49:13 +0100734 * csr.base: CSR base register address. (PCI)
735 * csr.cache: CSR cache for usb_control_msg. (USB)
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700736 */
Ivo van Doorn21795092008-02-10 22:49:13 +0100737 union csr {
738 void __iomem *base;
739 void *cache;
740 } csr;
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700741
742 /*
Ivo van Doorn8ff48a82008-11-09 23:40:46 +0100743 * Mutex to protect register accesses.
744 * For PCI and USB devices it protects against concurrent indirect
745 * register access (BBP, RF, MCU) since accessing those
746 * registers require multiple calls to the CSR registers.
747 * For USB devices it also protects the csr_cache since that
748 * field is used for normal CSR access and it cannot support
749 * multiple callers simultaneously.
Adam Baker3d823462007-10-27 13:43:29 +0200750 */
Ivo van Doorn8ff48a82008-11-09 23:40:46 +0100751 struct mutex csr_mutex;
Adam Baker3d823462007-10-27 13:43:29 +0200752
753 /*
Ivo van Doorn3c4f2082008-01-06 23:40:49 +0100754 * Current packet filter configuration for the device.
755 * This contains all currently active FIF_* flags send
756 * to us by mac80211 during configure_filter().
757 */
758 unsigned int packet_filter;
759
760 /*
Ivo van Doorn6bb40dd2008-02-03 15:49:59 +0100761 * Interface details:
762 * - Open ap interface count.
763 * - Open sta interface count.
764 * - Association count.
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700765 */
Ivo van Doorn6bb40dd2008-02-03 15:49:59 +0100766 unsigned int intf_ap_count;
767 unsigned int intf_sta_count;
768 unsigned int intf_associated;
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700769
770 /*
771 * Link quality
772 */
773 struct link link;
774
775 /*
776 * EEPROM data.
777 */
778 __le16 *eeprom;
779
780 /*
781 * Active RF register values.
782 * These are stored here so we don't need
783 * to read the rf registers and can directly
784 * use this value instead.
785 * This field should be accessed by using
786 * rt2x00_rf_read() and rt2x00_rf_write().
787 */
788 u32 *rf;
789
790 /*
Ivo van Doornba2ab472008-08-06 16:22:17 +0200791 * LNA gain
792 */
793 short lna_gain;
794
795 /*
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700796 * Current TX power value.
797 */
798 u16 tx_power;
799
800 /*
Ivo van Doorn42c82852008-12-02 18:20:04 +0100801 * Current retry values.
802 */
803 u8 short_retry;
804 u8 long_retry;
805
806 /*
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700807 * Rssi <-> Dbm offset
808 */
809 u8 rssi_offset;
810
811 /*
812 * Frequency offset (for rt61pci & rt73usb).
813 */
814 u8 freq_offset;
815
816 /*
Ivo van Doorn35f00cf2009-04-26 16:09:32 +0200817 * Calibration information (for rt2800usb & rt2800pci).
818 * [0] -> BW20
819 * [1] -> BW40
820 */
821 u8 calibration[2];
822
823 /*
Ivo van Doorn6b347bf2009-05-23 21:09:28 +0200824 * Beacon interval.
825 */
826 u16 beacon_int;
827
828 /*
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700829 * Low level statistics which will have
830 * to be kept up to date while device is running.
831 */
832 struct ieee80211_low_level_stats low_level_stats;
833
834 /*
835 * RX configuration information.
836 */
837 struct ieee80211_rx_status rx_status;
838
839 /*
Johannes Berg4150c572007-09-17 01:29:23 -0400840 * Scheduled work.
Ivo van Doorn8e260c22008-07-04 13:41:31 +0200841 * NOTE: intf_work will use ieee80211_iterate_active_interfaces()
842 * which means it cannot be placed on the hw->workqueue
843 * due to RTNL locking requirements.
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700844 */
Ivo van Doorn6bb40dd2008-02-03 15:49:59 +0100845 struct work_struct intf_work;
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700846
847 /*
Ivo van Doorn181d6902008-02-05 16:42:23 -0500848 * Data queue arrays for RX, TX and Beacon.
849 * The Beacon array also contains the Atim queue
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700850 * if that is supported by the device.
851 */
Ivo van Doornb8697672008-06-06 22:53:14 +0200852 unsigned int data_queues;
Ivo van Doorn181d6902008-02-05 16:42:23 -0500853 struct data_queue *rx;
854 struct data_queue *tx;
855 struct data_queue *bcn;
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700856
857 /*
858 * Firmware image.
859 */
860 const struct firmware *fw;
Bartlomiej Zolnierkiewiczee134fc2009-11-04 18:34:46 +0100861
862 /*
863 * Driver specific data.
864 */
865 void *priv;
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700866};
867
868/*
Bartlomiej Zolnierkiewicz1f285f12009-11-04 18:36:50 +0100869 * Register defines.
870 * Some registers require multiple attempts before success,
871 * in those cases REGISTER_BUSY_COUNT attempts should be
872 * taken with a REGISTER_BUSY_DELAY interval.
873 */
874#define REGISTER_BUSY_COUNT 5
875#define REGISTER_BUSY_DELAY 100
876
877/*
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700878 * Generic RF access.
879 * The RF is being accessed by word index.
880 */
Adam Baker0e14f6d2007-10-27 13:41:25 +0200881static inline void rt2x00_rf_read(struct rt2x00_dev *rt2x00dev,
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700882 const unsigned int word, u32 *data)
883{
Pavel Roskin6b26dea2009-08-04 17:48:16 -0400884 BUG_ON(word < 1 || word > rt2x00dev->ops->rf_size / sizeof(u32));
885 *data = rt2x00dev->rf[word - 1];
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700886}
887
Adam Baker0e14f6d2007-10-27 13:41:25 +0200888static inline void rt2x00_rf_write(struct rt2x00_dev *rt2x00dev,
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700889 const unsigned int word, u32 data)
890{
Pavel Roskin6b26dea2009-08-04 17:48:16 -0400891 BUG_ON(word < 1 || word > rt2x00dev->ops->rf_size / sizeof(u32));
892 rt2x00dev->rf[word - 1] = data;
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700893}
894
895/*
896 * Generic EEPROM access.
897 * The EEPROM is being accessed by word index.
898 */
Adam Baker0e14f6d2007-10-27 13:41:25 +0200899static inline void *rt2x00_eeprom_addr(struct rt2x00_dev *rt2x00dev,
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700900 const unsigned int word)
901{
902 return (void *)&rt2x00dev->eeprom[word];
903}
904
Adam Baker0e14f6d2007-10-27 13:41:25 +0200905static inline void rt2x00_eeprom_read(struct rt2x00_dev *rt2x00dev,
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700906 const unsigned int word, u16 *data)
907{
908 *data = le16_to_cpu(rt2x00dev->eeprom[word]);
909}
910
Adam Baker0e14f6d2007-10-27 13:41:25 +0200911static inline void rt2x00_eeprom_write(struct rt2x00_dev *rt2x00dev,
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700912 const unsigned int word, u16 data)
913{
914 rt2x00dev->eeprom[word] = cpu_to_le16(data);
915}
916
917/*
918 * Chipset handlers
919 */
920static inline void rt2x00_set_chip(struct rt2x00_dev *rt2x00dev,
Gertjan van Wingerde49e721e2010-02-13 20:55:49 +0100921 const u16 rt, const u16 rf, const u16 rev)
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700922{
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700923 rt2x00dev->chip.rt = rt;
924 rt2x00dev->chip.rf = rf;
925 rt2x00dev->chip.rev = rev;
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700926
Gertjan van Wingerde16475b02009-11-14 20:20:35 +0100927 INFO(rt2x00dev,
Gertjan van Wingerde49e721e2010-02-13 20:55:49 +0100928 "Chipset detected - rt: %04x, rf: %04x, rev: %04x.\n",
Gertjan van Wingerde16475b02009-11-14 20:20:35 +0100929 rt2x00dev->chip.rt, rt2x00dev->chip.rf, rt2x00dev->chip.rev);
930}
931
Gertjan van Wingerde8d0c9b62010-04-11 14:31:10 +0200932static inline bool rt2x00_rt(struct rt2x00_dev *rt2x00dev, const u16 rt)
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700933{
Gertjan van Wingerde5122d892009-12-23 00:03:25 +0100934 return (rt2x00dev->chip.rt == rt);
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700935}
936
Gertjan van Wingerde8d0c9b62010-04-11 14:31:10 +0200937static inline bool rt2x00_rf(struct rt2x00_dev *rt2x00dev, const u16 rf)
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700938{
Gertjan van Wingerde5122d892009-12-23 00:03:25 +0100939 return (rt2x00dev->chip.rf == rf);
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700940}
941
Gertjan van Wingerde49e721e2010-02-13 20:55:49 +0100942static inline u16 rt2x00_rev(struct rt2x00_dev *rt2x00dev)
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700943{
Gertjan van Wingerde5122d892009-12-23 00:03:25 +0100944 return rt2x00dev->chip.rev;
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700945}
946
Gertjan van Wingerde8d0c9b62010-04-11 14:31:10 +0200947static inline bool rt2x00_rt_rev(struct rt2x00_dev *rt2x00dev,
948 const u16 rt, const u16 rev)
949{
950 return (rt2x00_rt(rt2x00dev, rt) && rt2x00_rev(rt2x00dev) == rev);
951}
952
953static inline bool rt2x00_rt_rev_lt(struct rt2x00_dev *rt2x00dev,
954 const u16 rt, const u16 rev)
955{
956 return (rt2x00_rt(rt2x00dev, rt) && rt2x00_rev(rt2x00dev) < rev);
957}
958
959static inline bool rt2x00_rt_rev_gte(struct rt2x00_dev *rt2x00dev,
960 const u16 rt, const u16 rev)
961{
962 return (rt2x00_rt(rt2x00dev, rt) && rt2x00_rev(rt2x00dev) >= rev);
963}
964
Bartlomiej Zolnierkiewicz5822e072009-11-04 18:36:10 +0100965static inline void rt2x00_set_chip_intf(struct rt2x00_dev *rt2x00dev,
966 enum rt2x00_chip_intf intf)
967{
968 rt2x00dev->chip.intf = intf;
969}
970
Gertjan van Wingerde5122d892009-12-23 00:03:25 +0100971static inline bool rt2x00_intf(struct rt2x00_dev *rt2x00dev,
Bartlomiej Zolnierkiewicz5822e072009-11-04 18:36:10 +0100972 enum rt2x00_chip_intf intf)
973{
Gertjan van Wingerde5122d892009-12-23 00:03:25 +0100974 return (rt2x00dev->chip.intf == intf);
Bartlomiej Zolnierkiewicz5822e072009-11-04 18:36:10 +0100975}
976
Gertjan van Wingerdecea90e52010-02-13 20:55:47 +0100977static inline bool rt2x00_is_pci(struct rt2x00_dev *rt2x00dev)
Bartlomiej Zolnierkiewicz5822e072009-11-04 18:36:10 +0100978{
Gertjan van Wingerde5122d892009-12-23 00:03:25 +0100979 return rt2x00_intf(rt2x00dev, RT2X00_CHIP_INTF_PCI);
Bartlomiej Zolnierkiewicz5822e072009-11-04 18:36:10 +0100980}
981
Gertjan van Wingerdecea90e52010-02-13 20:55:47 +0100982static inline bool rt2x00_is_usb(struct rt2x00_dev *rt2x00dev)
Bartlomiej Zolnierkiewicz5822e072009-11-04 18:36:10 +0100983{
Gertjan van Wingerde5122d892009-12-23 00:03:25 +0100984 return rt2x00_intf(rt2x00dev, RT2X00_CHIP_INTF_USB);
Bartlomiej Zolnierkiewicz5822e072009-11-04 18:36:10 +0100985}
986
Gertjan van Wingerdecea90e52010-02-13 20:55:47 +0100987static inline bool rt2x00_is_soc(struct rt2x00_dev *rt2x00dev)
988{
989 return rt2x00_intf(rt2x00dev, RT2X00_CHIP_INTF_SOC);
990}
991
Ivo van Doorn181d6902008-02-05 16:42:23 -0500992/**
Gertjan van Wingerdec4da0042008-06-16 19:56:31 +0200993 * rt2x00queue_map_txskb - Map a skb into DMA for TX purposes.
994 * @rt2x00dev: Pointer to &struct rt2x00_dev.
995 * @skb: The skb to map.
Gertjan van Wingerde239c2492008-06-06 22:54:12 +0200996 */
Gertjan van Wingerdec4da0042008-06-16 19:56:31 +0200997void rt2x00queue_map_txskb(struct rt2x00_dev *rt2x00dev, struct sk_buff *skb);
Gertjan van Wingerde239c2492008-06-06 22:54:12 +0200998
999/**
Ivo van Doorne58c6ac2008-04-21 19:00:47 +02001000 * rt2x00queue_get_queue - Convert queue index to queue pointer
Ivo van Doorn181d6902008-02-05 16:42:23 -05001001 * @rt2x00dev: Pointer to &struct rt2x00_dev.
Ivo van Doorne58c6ac2008-04-21 19:00:47 +02001002 * @queue: rt2x00 queue index (see &enum data_queue_qid).
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001003 */
Ivo van Doorn181d6902008-02-05 16:42:23 -05001004struct data_queue *rt2x00queue_get_queue(struct rt2x00_dev *rt2x00dev,
Ivo van Doorne58c6ac2008-04-21 19:00:47 +02001005 const enum data_queue_qid queue);
Ivo van Doorn181d6902008-02-05 16:42:23 -05001006
1007/**
1008 * rt2x00queue_get_entry - Get queue entry where the given index points to.
Ivo van Doorn9a46d442008-04-21 19:02:17 +02001009 * @queue: Pointer to &struct data_queue from where we obtain the entry.
Ivo van Doorn181d6902008-02-05 16:42:23 -05001010 * @index: Index identifier for obtaining the correct index.
1011 */
1012struct queue_entry *rt2x00queue_get_entry(struct data_queue *queue,
1013 enum queue_index index);
1014
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001015/*
1016 * Interrupt context handlers.
1017 */
1018void rt2x00lib_beacondone(struct rt2x00_dev *rt2x00dev);
Ivo van Doorn181d6902008-02-05 16:42:23 -05001019void rt2x00lib_txdone(struct queue_entry *entry,
1020 struct txdone_entry_desc *txdesc);
Gertjan van Wingerdec4da0042008-06-16 19:56:31 +02001021void rt2x00lib_rxdone(struct rt2x00_dev *rt2x00dev,
1022 struct queue_entry *entry);
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001023
1024/*
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001025 * mac80211 handlers.
1026 */
Johannes Berge039fa42008-05-15 12:55:29 +02001027int rt2x00mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb);
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001028int rt2x00mac_start(struct ieee80211_hw *hw);
1029void rt2x00mac_stop(struct ieee80211_hw *hw);
1030int rt2x00mac_add_interface(struct ieee80211_hw *hw,
Johannes Berg1ed32e42009-12-23 13:15:45 +01001031 struct ieee80211_vif *vif);
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001032void rt2x00mac_remove_interface(struct ieee80211_hw *hw,
Johannes Berg1ed32e42009-12-23 13:15:45 +01001033 struct ieee80211_vif *vif);
Johannes Berge8975582008-10-09 12:18:51 +02001034int rt2x00mac_config(struct ieee80211_hw *hw, u32 changed);
Ivo van Doorn3a643d22008-03-25 14:13:18 +01001035void rt2x00mac_configure_filter(struct ieee80211_hw *hw,
1036 unsigned int changed_flags,
1037 unsigned int *total_flags,
Johannes Berg3ac64be2009-08-17 16:16:53 +02001038 u64 multicast);
Stefan Steuerwald930c06f2009-07-10 20:42:55 +02001039int rt2x00mac_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta,
1040 bool set);
Ivo van Doorn2bb057d2008-08-04 16:37:44 +02001041#ifdef CONFIG_RT2X00_LIB_CRYPTO
1042int rt2x00mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
Johannes Bergdc822b52008-12-29 12:55:09 +01001043 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
Ivo van Doorn2bb057d2008-08-04 16:37:44 +02001044 struct ieee80211_key_conf *key);
1045#else
1046#define rt2x00mac_set_key NULL
1047#endif /* CONFIG_RT2X00_LIB_CRYPTO */
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001048int rt2x00mac_get_stats(struct ieee80211_hw *hw,
1049 struct ieee80211_low_level_stats *stats);
Johannes Berg471b3ef2007-12-28 14:32:58 +01001050void rt2x00mac_bss_info_changed(struct ieee80211_hw *hw,
1051 struct ieee80211_vif *vif,
1052 struct ieee80211_bss_conf *bss_conf,
1053 u32 changes);
Johannes Berge100bb62008-04-30 18:51:21 +02001054int rt2x00mac_conf_tx(struct ieee80211_hw *hw, u16 queue,
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001055 const struct ieee80211_tx_queue_params *params);
Ivo van Doorne47a5cd2009-07-01 15:17:35 +02001056void rt2x00mac_rfkill_poll(struct ieee80211_hw *hw);
Ivo van Doorn95ea3622007-09-25 17:57:13 -07001057
1058/*
1059 * Driver allocation handlers.
1060 */
1061int rt2x00lib_probe_dev(struct rt2x00_dev *rt2x00dev);
1062void rt2x00lib_remove_dev(struct rt2x00_dev *rt2x00dev);
1063#ifdef CONFIG_PM
1064int rt2x00lib_suspend(struct rt2x00_dev *rt2x00dev, pm_message_t state);
1065int rt2x00lib_resume(struct rt2x00_dev *rt2x00dev);
1066#endif /* CONFIG_PM */
1067
1068#endif /* RT2X00_H */