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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>
Ivo van Doorn95ea3622007-09-25 17:57:13 -07003 <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: rt2x00usb
23 Abstract: Data structures for the rt2x00usb module.
24 */
25
26#ifndef RT2X00USB_H
27#define RT2X00USB_H
28
Gertjan van Wingerdeac9d1a72009-11-09 23:38:35 +010029#include <linux/usb.h>
30
Ivo van Doornc1d35df2008-06-16 19:57:11 +020031#define to_usb_device_intf(d) \
32({ \
33 struct usb_interface *intf = to_usb_interface(d); \
34 interface_to_usbdev(intf); \
35})
36
Ivo van Doorn95ea3622007-09-25 17:57:13 -070037/*
Ivo van Doorn95ea3622007-09-25 17:57:13 -070038 * For USB vendor requests we need to pass a timeout
39 * time in ms, for this we use the REGISTER_TIMEOUT,
40 * however when loading firmware a higher value is
41 * required. In that case we use the REGISTER_TIMEOUT_FIRMWARE.
42 */
Ivo van Doorne9136552007-09-25 20:54:20 +020043#define REGISTER_TIMEOUT 500
Ivo van Doorn95ea3622007-09-25 17:57:13 -070044#define REGISTER_TIMEOUT_FIRMWARE 1000
45
Ivo van Doornbd394a72008-04-21 19:01:58 +020046/**
47 * REGISTER_TIMEOUT16 - Determine the timeout for 16bit register access
48 * @__datalen: Data length
49 */
50#define REGISTER_TIMEOUT16(__datalen) \
51 ( REGISTER_TIMEOUT * ((__datalen) / sizeof(u16)) )
52
53/**
54 * REGISTER_TIMEOUT32 - Determine the timeout for 32bit register access
55 * @__datalen: Data length
56 */
57#define REGISTER_TIMEOUT32(__datalen) \
58 ( REGISTER_TIMEOUT * ((__datalen) / sizeof(u32)) )
59
Ivo van Doorn95ea3622007-09-25 17:57:13 -070060/*
61 * Cache size
62 */
Iwo Merglered0dbee2008-07-19 16:16:54 +020063#define CSR_CACHE_SIZE 64
Ivo van Doorn95ea3622007-09-25 17:57:13 -070064
65/*
66 * USB request types.
67 */
68#define USB_VENDOR_REQUEST ( USB_TYPE_VENDOR | USB_RECIP_DEVICE )
69#define USB_VENDOR_REQUEST_IN ( USB_DIR_IN | USB_VENDOR_REQUEST )
70#define USB_VENDOR_REQUEST_OUT ( USB_DIR_OUT | USB_VENDOR_REQUEST )
71
Ivo van Doorn3b640f22008-02-03 15:54:11 +010072/**
73 * enum rt2x00usb_vendor_request: USB vendor commands.
Ivo van Doorn95ea3622007-09-25 17:57:13 -070074 */
Ivo van Doorn3b640f22008-02-03 15:54:11 +010075enum rt2x00usb_vendor_request {
76 USB_DEVICE_MODE = 1,
77 USB_SINGLE_WRITE = 2,
78 USB_SINGLE_READ = 3,
79 USB_MULTI_WRITE = 6,
80 USB_MULTI_READ = 7,
81 USB_EEPROM_WRITE = 8,
82 USB_EEPROM_READ = 9,
83 USB_LED_CONTROL = 10, /* RT73USB */
84 USB_RX_CONTROL = 12,
85};
Ivo van Doorn95ea3622007-09-25 17:57:13 -070086
Ivo van Doorn3b640f22008-02-03 15:54:11 +010087/**
88 * enum rt2x00usb_mode_offset: Device modes offset.
Ivo van Doorn95ea3622007-09-25 17:57:13 -070089 */
Ivo van Doorn3b640f22008-02-03 15:54:11 +010090enum rt2x00usb_mode_offset {
91 USB_MODE_RESET = 1,
92 USB_MODE_UNPLUG = 2,
93 USB_MODE_FUNCTION = 3,
94 USB_MODE_TEST = 4,
95 USB_MODE_SLEEP = 7, /* RT73USB */
96 USB_MODE_FIRMWARE = 8, /* RT73USB */
97 USB_MODE_WAKEUP = 9, /* RT73USB */
98};
Ivo van Doorn95ea3622007-09-25 17:57:13 -070099
Ivo van Doorn3b640f22008-02-03 15:54:11 +0100100/**
101 * rt2x00usb_vendor_request - Send register command to device
102 * @rt2x00dev: Pointer to &struct rt2x00_dev
103 * @request: USB vendor command (See &enum rt2x00usb_vendor_request)
104 * @requesttype: Request type &USB_VENDOR_REQUEST_*
105 * @offset: Register offset to perform action on
106 * @value: Value to write to device
107 * @buffer: Buffer where information will be read/written to by device
108 * @buffer_length: Size of &buffer
109 * @timeout: Operation timeout
110 *
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700111 * This is the main function to communicate with the device,
Ivo van Doorn3b640f22008-02-03 15:54:11 +0100112 * the &buffer argument _must_ either be NULL or point to
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700113 * a buffer allocated by kmalloc. Failure to do so can lead
114 * to unexpected behavior depending on the architecture.
115 */
Adam Baker0e14f6d2007-10-27 13:41:25 +0200116int rt2x00usb_vendor_request(struct rt2x00_dev *rt2x00dev,
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700117 const u8 request, const u8 requesttype,
118 const u16 offset, const u16 value,
119 void *buffer, const u16 buffer_length,
Ivo van Doorne9136552007-09-25 20:54:20 +0200120 const int timeout);
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700121
Ivo van Doorn3b640f22008-02-03 15:54:11 +0100122/**
123 * rt2x00usb_vendor_request_buff - Send register command to device (buffered)
124 * @rt2x00dev: Pointer to &struct rt2x00_dev
125 * @request: USB vendor command (See &enum rt2x00usb_vendor_request)
126 * @requesttype: Request type &USB_VENDOR_REQUEST_*
127 * @offset: Register offset to perform action on
128 * @buffer: Buffer where information will be read/written to by device
129 * @buffer_length: Size of &buffer
130 * @timeout: Operation timeout
131 *
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700132 * This function will use a previously with kmalloc allocated cache
133 * to communicate with the device. The contents of the buffer pointer
134 * will be copied to this cache when writing, or read from the cache
135 * when reading.
Ivo van Doorn3b640f22008-02-03 15:54:11 +0100136 * Buffers send to &rt2x00usb_vendor_request _must_ be allocated with
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700137 * kmalloc. Hence the reason for using a previously allocated cache
138 * which has been allocated properly.
139 */
Adam Baker0e14f6d2007-10-27 13:41:25 +0200140int rt2x00usb_vendor_request_buff(struct rt2x00_dev *rt2x00dev,
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700141 const u8 request, const u8 requesttype,
142 const u16 offset, void *buffer,
Ivo van Doorne9136552007-09-25 20:54:20 +0200143 const u16 buffer_length, const int timeout);
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700144
Ivo van Doorn3b640f22008-02-03 15:54:11 +0100145/**
146 * rt2x00usb_vendor_request_buff - Send register command to device (buffered)
147 * @rt2x00dev: Pointer to &struct rt2x00_dev
148 * @request: USB vendor command (See &enum rt2x00usb_vendor_request)
149 * @requesttype: Request type &USB_VENDOR_REQUEST_*
150 * @offset: Register offset to perform action on
151 * @buffer: Buffer where information will be read/written to by device
152 * @buffer_length: Size of &buffer
153 * @timeout: Operation timeout
154 *
155 * A version of &rt2x00usb_vendor_request_buff which must be called
156 * if the usb_cache_mutex is already held.
157 */
Adam Baker3d823462007-10-27 13:43:29 +0200158int rt2x00usb_vendor_req_buff_lock(struct rt2x00_dev *rt2x00dev,
159 const u8 request, const u8 requesttype,
160 const u16 offset, void *buffer,
161 const u16 buffer_length, const int timeout);
162
Ivo van Doorn3b640f22008-02-03 15:54:11 +0100163/**
164 * rt2x00usb_vendor_request_sw - Send single register command to device
165 * @rt2x00dev: Pointer to &struct rt2x00_dev
166 * @request: USB vendor command (See &enum rt2x00usb_vendor_request)
167 * @offset: Register offset to perform action on
168 * @value: Value to write to device
169 * @timeout: Operation timeout
170 *
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700171 * Simple wrapper around rt2x00usb_vendor_request to write a single
172 * command to the device. Since we don't use the buffer argument we
173 * don't have to worry about kmalloc here.
174 */
Adam Baker0e14f6d2007-10-27 13:41:25 +0200175static inline int rt2x00usb_vendor_request_sw(struct rt2x00_dev *rt2x00dev,
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700176 const u8 request,
177 const u16 offset,
178 const u16 value,
Ivo van Doorne9136552007-09-25 20:54:20 +0200179 const int timeout)
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700180{
181 return rt2x00usb_vendor_request(rt2x00dev, request,
182 USB_VENDOR_REQUEST_OUT, offset,
183 value, NULL, 0, timeout);
184}
185
Ivo van Doorn3b640f22008-02-03 15:54:11 +0100186/**
187 * rt2x00usb_eeprom_read - Read eeprom from device
188 * @rt2x00dev: Pointer to &struct rt2x00_dev
189 * @eeprom: Pointer to eeprom array to store the information in
190 * @length: Number of bytes to read from the eeprom
191 *
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700192 * Simple wrapper around rt2x00usb_vendor_request to read the eeprom
193 * from the device. Note that the eeprom argument _must_ be allocated using
194 * kmalloc for correct handling inside the kernel USB layer.
195 */
Adam Baker0e14f6d2007-10-27 13:41:25 +0200196static inline int rt2x00usb_eeprom_read(struct rt2x00_dev *rt2x00dev,
Ivo van Doorn9a46d442008-04-21 19:02:17 +0200197 __le16 *eeprom, const u16 length)
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700198{
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700199 return rt2x00usb_vendor_request(rt2x00dev, USB_EEPROM_READ,
Ivo van Doorn3b640f22008-02-03 15:54:11 +0100200 USB_VENDOR_REQUEST_IN, 0, 0,
Ivo van Doorn9a46d442008-04-21 19:02:17 +0200201 eeprom, length,
202 REGISTER_TIMEOUT16(length));
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700203}
204
Ivo van Doorn0f829b12008-11-10 19:42:18 +0100205/**
Bartlomiej Zolnierkiewicz02a39c22009-11-04 18:32:50 +0100206 * rt2x00usb_register_read - Read 32bit register word
Ivo van Doorn0f829b12008-11-10 19:42:18 +0100207 * @rt2x00dev: Device pointer, see &struct rt2x00_dev.
208 * @offset: Register offset
209 * @value: Pointer to where register contents should be stored
210 *
211 * This function is a simple wrapper for 32bit register access
212 * through rt2x00usb_vendor_request_buff().
213 */
214static inline void rt2x00usb_register_read(struct rt2x00_dev *rt2x00dev,
215 const unsigned int offset,
216 u32 *value)
217{
218 __le32 reg;
219 rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_READ,
220 USB_VENDOR_REQUEST_IN, offset,
221 &reg, sizeof(reg), REGISTER_TIMEOUT);
222 *value = le32_to_cpu(reg);
223}
224
225/**
226 * rt2x00usb_register_read_lock - Read 32bit register word
227 * @rt2x00dev: Device pointer, see &struct rt2x00_dev.
228 * @offset: Register offset
229 * @value: Pointer to where register contents should be stored
230 *
231 * This function is a simple wrapper for 32bit register access
232 * through rt2x00usb_vendor_req_buff_lock().
233 */
234static inline void rt2x00usb_register_read_lock(struct rt2x00_dev *rt2x00dev,
235 const unsigned int offset,
236 u32 *value)
237{
238 __le32 reg;
239 rt2x00usb_vendor_req_buff_lock(rt2x00dev, USB_MULTI_READ,
240 USB_VENDOR_REQUEST_IN, offset,
241 &reg, sizeof(reg), REGISTER_TIMEOUT);
242 *value = le32_to_cpu(reg);
243}
244
245/**
246 * rt2x00usb_register_multiread - Read 32bit register words
247 * @rt2x00dev: Device pointer, see &struct rt2x00_dev.
248 * @offset: Register offset
249 * @value: Pointer to where register contents should be stored
250 * @length: Length of the data
251 *
252 * This function is a simple wrapper for 32bit register access
253 * through rt2x00usb_vendor_request_buff().
254 */
255static inline void rt2x00usb_register_multiread(struct rt2x00_dev *rt2x00dev,
256 const unsigned int offset,
257 void *value, const u32 length)
258{
259 rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_READ,
260 USB_VENDOR_REQUEST_IN, offset,
261 value, length,
262 REGISTER_TIMEOUT32(length));
263}
264
265/**
266 * rt2x00usb_register_write - Write 32bit register word
267 * @rt2x00dev: Device pointer, see &struct rt2x00_dev.
268 * @offset: Register offset
269 * @value: Data which should be written
270 *
271 * This function is a simple wrapper for 32bit register access
272 * through rt2x00usb_vendor_request_buff().
273 */
274static inline void rt2x00usb_register_write(struct rt2x00_dev *rt2x00dev,
275 const unsigned int offset,
276 u32 value)
277{
278 __le32 reg = cpu_to_le32(value);
279 rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_WRITE,
280 USB_VENDOR_REQUEST_OUT, offset,
281 &reg, sizeof(reg), REGISTER_TIMEOUT);
282}
283
284/**
285 * rt2x00usb_register_write_lock - Write 32bit register word
286 * @rt2x00dev: Device pointer, see &struct rt2x00_dev.
287 * @offset: Register offset
288 * @value: Data which should be written
289 *
290 * This function is a simple wrapper for 32bit register access
291 * through rt2x00usb_vendor_req_buff_lock().
292 */
293static inline void rt2x00usb_register_write_lock(struct rt2x00_dev *rt2x00dev,
294 const unsigned int offset,
295 u32 value)
296{
297 __le32 reg = cpu_to_le32(value);
298 rt2x00usb_vendor_req_buff_lock(rt2x00dev, USB_MULTI_WRITE,
299 USB_VENDOR_REQUEST_OUT, offset,
300 &reg, sizeof(reg), REGISTER_TIMEOUT);
301}
302
303/**
304 * rt2x00usb_register_multiwrite - Write 32bit register words
305 * @rt2x00dev: Device pointer, see &struct rt2x00_dev.
306 * @offset: Register offset
307 * @value: Data which should be written
308 * @length: Length of the data
309 *
310 * This function is a simple wrapper for 32bit register access
311 * through rt2x00usb_vendor_request_buff().
312 */
313static inline void rt2x00usb_register_multiwrite(struct rt2x00_dev *rt2x00dev,
Bartlomiej Zolnierkiewicz5b10b092009-11-04 18:35:10 +0100314 const unsigned int offset,
315 const void *value,
316 const u32 length)
Ivo van Doorn0f829b12008-11-10 19:42:18 +0100317{
318 rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_WRITE,
319 USB_VENDOR_REQUEST_OUT, offset,
Bartlomiej Zolnierkiewicz5b10b092009-11-04 18:35:10 +0100320 (void *)value, length,
Ivo van Doorn0f829b12008-11-10 19:42:18 +0100321 REGISTER_TIMEOUT32(length));
322}
323
324/**
325 * rt2x00usb_regbusy_read - Read from register with busy check
326 * @rt2x00dev: Device pointer, see &struct rt2x00_dev.
327 * @offset: Register offset
328 * @field: Field to check if register is busy
329 * @reg: Pointer to where register contents should be stored
330 *
331 * This function will read the given register, and checks if the
332 * register is busy. If it is, it will sleep for a couple of
333 * microseconds before reading the register again. If the register
334 * is not read after a certain timeout, this function will return
335 * FALSE.
336 */
337int rt2x00usb_regbusy_read(struct rt2x00_dev *rt2x00dev,
338 const unsigned int offset,
Bartlomiej Zolnierkiewiczf255b922009-11-04 18:35:18 +0100339 const struct rt2x00_field32 field,
Ivo van Doorn0f829b12008-11-10 19:42:18 +0100340 u32 *reg);
341
Johannes Stezenbach0e0d39e2011-04-18 15:29:12 +0200342/**
343 * rt2x00usb_register_read_async - Asynchronously read 32bit register word
344 * @rt2x00dev: Device pointer, see &struct rt2x00_dev.
345 * @offset: Register offset
346 * @callback: Functon to call when read completes.
347 *
348 * Submit a control URB to read a 32bit register. This safe to
349 * be called from atomic context. The callback will be called
350 * when the URB completes. Otherwise the function is similar
351 * to rt2x00usb_register_read().
Ivo van Doorna073fde2011-04-30 17:14:23 +0200352 * When the callback function returns false, the memory will be cleaned up,
353 * when it returns true, the urb will be fired again.
Johannes Stezenbach0e0d39e2011-04-18 15:29:12 +0200354 */
355void rt2x00usb_register_read_async(struct rt2x00_dev *rt2x00dev,
356 const unsigned int offset,
Ivo van Doorna073fde2011-04-30 17:14:23 +0200357 bool (*callback)(struct rt2x00_dev*, int, u32));
Johannes Stezenbach0e0d39e2011-04-18 15:29:12 +0200358
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700359/*
360 * Radio handlers
361 */
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700362void rt2x00usb_disable_radio(struct rt2x00_dev *rt2x00dev);
363
Ivo van Doorn6db37862008-06-06 22:50:28 +0200364/**
Ivo van Doornb8be63f2008-05-10 13:46:03 +0200365 * struct queue_entry_priv_usb: Per entry USB specific information
Ivo van Doorn181d6902008-02-05 16:42:23 -0500366 *
367 * @urb: Urb structure used for device communication.
Ivo van Doorn181d6902008-02-05 16:42:23 -0500368 */
Ivo van Doornb8be63f2008-05-10 13:46:03 +0200369struct queue_entry_priv_usb {
Ivo van Doorn181d6902008-02-05 16:42:23 -0500370 struct urb *urb;
Ivo van Doorn181d6902008-02-05 16:42:23 -0500371};
372
373/**
Ivo van Doornb8be63f2008-05-10 13:46:03 +0200374 * struct queue_entry_priv_usb_bcn: Per TX entry USB specific information
Ivo van Doorn181d6902008-02-05 16:42:23 -0500375 *
Ivo van Doornb8be63f2008-05-10 13:46:03 +0200376 * The first section should match &struct queue_entry_priv_usb exactly.
Ivo van Doorn181d6902008-02-05 16:42:23 -0500377 * rt2500usb can use this structure to send a guardian byte when working
378 * with beacons.
379 *
380 * @urb: Urb structure used for device communication.
Ivo van Doorn181d6902008-02-05 16:42:23 -0500381 * @guardian_data: Set to 0, used for sending the guardian data.
382 * @guardian_urb: Urb structure used to send the guardian data.
383 */
384struct queue_entry_priv_usb_bcn {
385 struct urb *urb;
386
Ivo van Doorn181d6902008-02-05 16:42:23 -0500387 unsigned int guardian_data;
388 struct urb *guardian_urb;
389};
390
Ivo van Doornf019d512008-06-06 22:47:39 +0200391/**
Ivo van Doorndbba3062010-12-13 12:34:54 +0100392 * rt2x00usb_kick_queue - Kick data queue
Ivo van Doorn93331452010-08-23 19:53:39 +0200393 * @queue: Data queue to kick
Ivo van Doornf019d512008-06-06 22:47:39 +0200394 *
395 * This will walk through all entries of the queue and push all pending
396 * frames to the hardware as a single burst.
397 */
Ivo van Doorndbba3062010-12-13 12:34:54 +0100398void rt2x00usb_kick_queue(struct data_queue *queue);
Ivo van Doornf019d512008-06-06 22:47:39 +0200399
Ivo van Doorna2c9b652009-01-28 00:32:33 +0100400/**
Ivo van Doorn5be65602010-12-13 12:35:40 +0100401 * rt2x00usb_flush_queue - Flush data queue
Ivo van Doorn5450b7e2010-12-13 12:34:22 +0100402 * @queue: Data queue to stop
Ivo van Doorn152a5992011-04-18 15:31:02 +0200403 * @drop: True to drop all pending frames.
Ivo van Doorna2c9b652009-01-28 00:32:33 +0100404 *
Ivo van Doorn152a5992011-04-18 15:31:02 +0200405 * This will walk through all entries of the queue and will optionally
406 * kill all URB's which were send to the device, or at least wait until
407 * they have been returned from the device..
Ivo van Doorna2c9b652009-01-28 00:32:33 +0100408 */
Ivo van Doorn152a5992011-04-18 15:31:02 +0200409void rt2x00usb_flush_queue(struct data_queue *queue, bool drop);
Ivo van Doorna2c9b652009-01-28 00:32:33 +0100410
Ivo van Doornc965c742010-07-11 12:25:46 +0200411/**
412 * rt2x00usb_watchdog - Watchdog for USB communication
413 * @rt2x00dev: Pointer to &struct rt2x00_dev
414 *
415 * Check the health of the USB communication and determine
Lucas De Marchi25985ed2011-03-30 22:57:33 -0300416 * if timeouts have occurred. If this is the case, this function
Ivo van Doornc965c742010-07-11 12:25:46 +0200417 * will reset all communication to restore functionality again.
418 */
419void rt2x00usb_watchdog(struct rt2x00_dev *rt2x00dev);
420
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700421/*
422 * Device initialization handlers.
423 */
Ivo van Doorn798b7ad2008-11-08 15:25:33 +0100424void rt2x00usb_clear_entry(struct queue_entry *entry);
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700425int rt2x00usb_initialize(struct rt2x00_dev *rt2x00dev);
426void rt2x00usb_uninitialize(struct rt2x00_dev *rt2x00dev);
427
428/*
429 * USB driver handlers.
430 */
431int rt2x00usb_probe(struct usb_interface *usb_intf,
Gertjan van Wingerdee01ae272011-04-18 15:32:13 +0200432 const struct rt2x00_ops *ops);
Ivo van Doorn95ea3622007-09-25 17:57:13 -0700433void rt2x00usb_disconnect(struct usb_interface *usb_intf);
434#ifdef CONFIG_PM
435int rt2x00usb_suspend(struct usb_interface *usb_intf, pm_message_t state);
436int rt2x00usb_resume(struct usb_interface *usb_intf);
437#else
438#define rt2x00usb_suspend NULL
439#define rt2x00usb_resume NULL
440#endif /* CONFIG_PM */
441
442#endif /* RT2X00USB_H */