xref: /linux/drivers/net/wireless/ralink/rt2x00/rt2800usb.c (revision e58e871becec2d3b04ed91c0c16fe8deac9c9dfa)
1 /*
2 	Copyright (C) 2010 Willow Garage <http://www.willowgarage.com>
3 	Copyright (C) 2009 - 2010 Ivo van Doorn <IvDoorn@gmail.com>
4 	Copyright (C) 2009 Mattias Nissler <mattias.nissler@gmx.de>
5 	Copyright (C) 2009 Felix Fietkau <nbd@openwrt.org>
6 	Copyright (C) 2009 Xose Vazquez Perez <xose.vazquez@gmail.com>
7 	Copyright (C) 2009 Axel Kollhofer <rain_maker@root-forum.org>
8 	<http://rt2x00.serialmonkey.com>
9 
10 	This program is free software; you can redistribute it and/or modify
11 	it under the terms of the GNU General Public License as published by
12 	the Free Software Foundation; either version 2 of the License, or
13 	(at your option) any later version.
14 
15 	This program is distributed in the hope that it will be useful,
16 	but WITHOUT ANY WARRANTY; without even the implied warranty of
17 	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 	GNU General Public License for more details.
19 
20 	You should have received a copy of the GNU General Public License
21 	along with this program; if not, see <http://www.gnu.org/licenses/>.
22  */
23 
24 /*
25 	Module: rt2800usb
26 	Abstract: rt2800usb device specific routines.
27 	Supported chipsets: RT2800U.
28  */
29 
30 #include <linux/delay.h>
31 #include <linux/etherdevice.h>
32 #include <linux/kernel.h>
33 #include <linux/module.h>
34 #include <linux/usb.h>
35 
36 #include "rt2x00.h"
37 #include "rt2x00usb.h"
38 #include "rt2800lib.h"
39 #include "rt2800.h"
40 #include "rt2800usb.h"
41 
42 /*
43  * Allow hardware encryption to be disabled.
44  */
45 static bool modparam_nohwcrypt;
46 module_param_named(nohwcrypt, modparam_nohwcrypt, bool, S_IRUGO);
47 MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption.");
48 
49 static bool rt2800usb_hwcrypt_disabled(struct rt2x00_dev *rt2x00dev)
50 {
51 	return modparam_nohwcrypt;
52 }
53 
54 /*
55  * Queue handlers.
56  */
57 static void rt2800usb_start_queue(struct data_queue *queue)
58 {
59 	struct rt2x00_dev *rt2x00dev = queue->rt2x00dev;
60 	u32 reg;
61 
62 	switch (queue->qid) {
63 	case QID_RX:
64 		rt2x00usb_register_read(rt2x00dev, MAC_SYS_CTRL, &reg);
65 		rt2x00_set_field32(&reg, MAC_SYS_CTRL_ENABLE_RX, 1);
66 		rt2x00usb_register_write(rt2x00dev, MAC_SYS_CTRL, reg);
67 		break;
68 	case QID_BEACON:
69 		rt2x00usb_register_read(rt2x00dev, BCN_TIME_CFG, &reg);
70 		rt2x00_set_field32(&reg, BCN_TIME_CFG_TSF_TICKING, 1);
71 		rt2x00_set_field32(&reg, BCN_TIME_CFG_TBTT_ENABLE, 1);
72 		rt2x00_set_field32(&reg, BCN_TIME_CFG_BEACON_GEN, 1);
73 		rt2x00usb_register_write(rt2x00dev, BCN_TIME_CFG, reg);
74 		break;
75 	default:
76 		break;
77 	}
78 }
79 
80 static void rt2800usb_stop_queue(struct data_queue *queue)
81 {
82 	struct rt2x00_dev *rt2x00dev = queue->rt2x00dev;
83 	u32 reg;
84 
85 	switch (queue->qid) {
86 	case QID_RX:
87 		rt2x00usb_register_read(rt2x00dev, MAC_SYS_CTRL, &reg);
88 		rt2x00_set_field32(&reg, MAC_SYS_CTRL_ENABLE_RX, 0);
89 		rt2x00usb_register_write(rt2x00dev, MAC_SYS_CTRL, reg);
90 		break;
91 	case QID_BEACON:
92 		rt2x00usb_register_read(rt2x00dev, BCN_TIME_CFG, &reg);
93 		rt2x00_set_field32(&reg, BCN_TIME_CFG_TSF_TICKING, 0);
94 		rt2x00_set_field32(&reg, BCN_TIME_CFG_TBTT_ENABLE, 0);
95 		rt2x00_set_field32(&reg, BCN_TIME_CFG_BEACON_GEN, 0);
96 		rt2x00usb_register_write(rt2x00dev, BCN_TIME_CFG, reg);
97 		break;
98 	default:
99 		break;
100 	}
101 }
102 
103 /*
104  * test if there is an entry in any TX queue for which DMA is done
105  * but the TX status has not been returned yet
106  */
107 static bool rt2800usb_txstatus_pending(struct rt2x00_dev *rt2x00dev)
108 {
109 	struct data_queue *queue;
110 
111 	tx_queue_for_each(rt2x00dev, queue) {
112 		if (rt2x00queue_get_entry(queue, Q_INDEX_DMA_DONE) !=
113 		    rt2x00queue_get_entry(queue, Q_INDEX_DONE))
114 			return true;
115 	}
116 	return false;
117 }
118 
119 static inline bool rt2800usb_entry_txstatus_timeout(struct queue_entry *entry)
120 {
121 	bool tout;
122 
123 	if (!test_bit(ENTRY_DATA_STATUS_PENDING, &entry->flags))
124 		return false;
125 
126 	tout = time_after(jiffies, entry->last_action + msecs_to_jiffies(500));
127 	if (unlikely(tout))
128 		rt2x00_dbg(entry->queue->rt2x00dev,
129 			   "TX status timeout for entry %d in queue %d\n",
130 			   entry->entry_idx, entry->queue->qid);
131 	return tout;
132 
133 }
134 
135 static bool rt2800usb_txstatus_timeout(struct rt2x00_dev *rt2x00dev)
136 {
137 	struct data_queue *queue;
138 	struct queue_entry *entry;
139 
140 	tx_queue_for_each(rt2x00dev, queue) {
141 		entry = rt2x00queue_get_entry(queue, Q_INDEX_DONE);
142 		if (rt2800usb_entry_txstatus_timeout(entry))
143 			return true;
144 	}
145 	return false;
146 }
147 
148 #define TXSTATUS_READ_INTERVAL 1000000
149 
150 static bool rt2800usb_tx_sta_fifo_read_completed(struct rt2x00_dev *rt2x00dev,
151 						 int urb_status, u32 tx_status)
152 {
153 	bool valid;
154 
155 	if (urb_status) {
156 		rt2x00_warn(rt2x00dev, "TX status read failed %d\n",
157 			    urb_status);
158 
159 		goto stop_reading;
160 	}
161 
162 	valid = rt2x00_get_field32(tx_status, TX_STA_FIFO_VALID);
163 	if (valid) {
164 		if (!kfifo_put(&rt2x00dev->txstatus_fifo, tx_status))
165 			rt2x00_warn(rt2x00dev, "TX status FIFO overrun\n");
166 
167 		queue_work(rt2x00dev->workqueue, &rt2x00dev->txdone_work);
168 
169 		/* Reschedule urb to read TX status again instantly */
170 		return true;
171 	}
172 
173 	/* Check if there is any entry that timedout waiting on TX status */
174 	if (rt2800usb_txstatus_timeout(rt2x00dev))
175 		queue_work(rt2x00dev->workqueue, &rt2x00dev->txdone_work);
176 
177 	if (rt2800usb_txstatus_pending(rt2x00dev)) {
178 		/* Read register after 1 ms */
179 		hrtimer_start(&rt2x00dev->txstatus_timer,
180 			      TXSTATUS_READ_INTERVAL,
181 			      HRTIMER_MODE_REL);
182 		return false;
183 	}
184 
185 stop_reading:
186 	clear_bit(TX_STATUS_READING, &rt2x00dev->flags);
187 	/*
188 	 * There is small race window above, between txstatus pending check and
189 	 * clear_bit someone could do rt2x00usb_interrupt_txdone, so recheck
190 	 * here again if status reading is needed.
191 	 */
192 	if (rt2800usb_txstatus_pending(rt2x00dev) &&
193 	    !test_and_set_bit(TX_STATUS_READING, &rt2x00dev->flags))
194 		return true;
195 	else
196 		return false;
197 }
198 
199 static void rt2800usb_async_read_tx_status(struct rt2x00_dev *rt2x00dev)
200 {
201 
202 	if (test_and_set_bit(TX_STATUS_READING, &rt2x00dev->flags))
203 		return;
204 
205 	/* Read TX_STA_FIFO register after 2 ms */
206 	hrtimer_start(&rt2x00dev->txstatus_timer,
207 		      2 * TXSTATUS_READ_INTERVAL,
208 		      HRTIMER_MODE_REL);
209 }
210 
211 static void rt2800usb_tx_dma_done(struct queue_entry *entry)
212 {
213 	struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
214 
215 	rt2800usb_async_read_tx_status(rt2x00dev);
216 }
217 
218 static enum hrtimer_restart rt2800usb_tx_sta_fifo_timeout(struct hrtimer *timer)
219 {
220 	struct rt2x00_dev *rt2x00dev =
221 	    container_of(timer, struct rt2x00_dev, txstatus_timer);
222 
223 	rt2x00usb_register_read_async(rt2x00dev, TX_STA_FIFO,
224 				      rt2800usb_tx_sta_fifo_read_completed);
225 
226 	return HRTIMER_NORESTART;
227 }
228 
229 /*
230  * Firmware functions
231  */
232 static int rt2800usb_autorun_detect(struct rt2x00_dev *rt2x00dev)
233 {
234 	__le32 *reg;
235 	u32 fw_mode;
236 	int ret;
237 
238 	reg = kmalloc(sizeof(*reg), GFP_KERNEL);
239 	if (reg == NULL)
240 		return -ENOMEM;
241 	/* cannot use rt2x00usb_register_read here as it uses different
242 	 * mode (MULTI_READ vs. DEVICE_MODE) and does not pass the
243 	 * magic value USB_MODE_AUTORUN (0x11) to the device, thus the
244 	 * returned value would be invalid.
245 	 */
246 	ret = rt2x00usb_vendor_request(rt2x00dev, USB_DEVICE_MODE,
247 				       USB_VENDOR_REQUEST_IN, 0,
248 				       USB_MODE_AUTORUN, reg, sizeof(*reg),
249 				       REGISTER_TIMEOUT_FIRMWARE);
250 	fw_mode = le32_to_cpu(*reg);
251 	kfree(reg);
252 	if (ret < 0)
253 		return ret;
254 
255 	if ((fw_mode & 0x00000003) == 2)
256 		return 1;
257 
258 	return 0;
259 }
260 
261 static char *rt2800usb_get_firmware_name(struct rt2x00_dev *rt2x00dev)
262 {
263 	return FIRMWARE_RT2870;
264 }
265 
266 static int rt2800usb_write_firmware(struct rt2x00_dev *rt2x00dev,
267 				    const u8 *data, const size_t len)
268 {
269 	int status;
270 	u32 offset;
271 	u32 length;
272 	int retval;
273 
274 	/*
275 	 * Check which section of the firmware we need.
276 	 */
277 	if (rt2x00_rt(rt2x00dev, RT2860) ||
278 	    rt2x00_rt(rt2x00dev, RT2872) ||
279 	    rt2x00_rt(rt2x00dev, RT3070)) {
280 		offset = 0;
281 		length = 4096;
282 	} else {
283 		offset = 4096;
284 		length = 4096;
285 	}
286 
287 	/*
288 	 * Write firmware to device.
289 	 */
290 	retval = rt2800usb_autorun_detect(rt2x00dev);
291 	if (retval < 0)
292 		return retval;
293 	if (retval) {
294 		rt2x00_info(rt2x00dev,
295 			    "Firmware loading not required - NIC in AutoRun mode\n");
296 		__clear_bit(REQUIRE_FIRMWARE, &rt2x00dev->cap_flags);
297 	} else {
298 		rt2x00usb_register_multiwrite(rt2x00dev, FIRMWARE_IMAGE_BASE,
299 					      data + offset, length);
300 	}
301 
302 	rt2x00usb_register_write(rt2x00dev, H2M_MAILBOX_CID, ~0);
303 	rt2x00usb_register_write(rt2x00dev, H2M_MAILBOX_STATUS, ~0);
304 
305 	/*
306 	 * Send firmware request to device to load firmware,
307 	 * we need to specify a long timeout time.
308 	 */
309 	status = rt2x00usb_vendor_request_sw(rt2x00dev, USB_DEVICE_MODE,
310 					     0, USB_MODE_FIRMWARE,
311 					     REGISTER_TIMEOUT_FIRMWARE);
312 	if (status < 0) {
313 		rt2x00_err(rt2x00dev, "Failed to write Firmware to device\n");
314 		return status;
315 	}
316 
317 	msleep(10);
318 	rt2x00usb_register_write(rt2x00dev, H2M_MAILBOX_CSR, 0);
319 
320 	return 0;
321 }
322 
323 /*
324  * Device state switch handlers.
325  */
326 static int rt2800usb_init_registers(struct rt2x00_dev *rt2x00dev)
327 {
328 	u32 reg;
329 
330 	/*
331 	 * Wait until BBP and RF are ready.
332 	 */
333 	if (rt2800_wait_csr_ready(rt2x00dev))
334 		return -EBUSY;
335 
336 	rt2x00usb_register_read(rt2x00dev, PBF_SYS_CTRL, &reg);
337 	rt2x00usb_register_write(rt2x00dev, PBF_SYS_CTRL, reg & ~0x00002000);
338 
339 	reg = 0;
340 	rt2x00_set_field32(&reg, MAC_SYS_CTRL_RESET_CSR, 1);
341 	rt2x00_set_field32(&reg, MAC_SYS_CTRL_RESET_BBP, 1);
342 	rt2x00usb_register_write(rt2x00dev, MAC_SYS_CTRL, reg);
343 
344 	rt2x00usb_vendor_request_sw(rt2x00dev, USB_DEVICE_MODE, 0,
345 				    USB_MODE_RESET, REGISTER_TIMEOUT);
346 
347 	rt2x00usb_register_write(rt2x00dev, MAC_SYS_CTRL, 0x00000000);
348 
349 	return 0;
350 }
351 
352 static int rt2800usb_enable_radio(struct rt2x00_dev *rt2x00dev)
353 {
354 	u32 reg = 0;
355 
356 	if (unlikely(rt2800_wait_wpdma_ready(rt2x00dev)))
357 		return -EIO;
358 
359 	rt2x00_set_field32(&reg, USB_DMA_CFG_PHY_CLEAR, 0);
360 	rt2x00_set_field32(&reg, USB_DMA_CFG_RX_BULK_AGG_EN, 0);
361 	rt2x00_set_field32(&reg, USB_DMA_CFG_RX_BULK_AGG_TIMEOUT, 128);
362 	/*
363 	 * Total room for RX frames in kilobytes, PBF might still exceed
364 	 * this limit so reduce the number to prevent errors.
365 	 */
366 	rt2x00_set_field32(&reg, USB_DMA_CFG_RX_BULK_AGG_LIMIT,
367 			   ((rt2x00dev->rx->limit * DATA_FRAME_SIZE)
368 			    / 1024) - 3);
369 	rt2x00_set_field32(&reg, USB_DMA_CFG_RX_BULK_EN, 1);
370 	rt2x00_set_field32(&reg, USB_DMA_CFG_TX_BULK_EN, 1);
371 	rt2x00usb_register_write(rt2x00dev, USB_DMA_CFG, reg);
372 
373 	return rt2800_enable_radio(rt2x00dev);
374 }
375 
376 static void rt2800usb_disable_radio(struct rt2x00_dev *rt2x00dev)
377 {
378 	rt2800_disable_radio(rt2x00dev);
379 }
380 
381 static int rt2800usb_set_state(struct rt2x00_dev *rt2x00dev,
382 			       enum dev_state state)
383 {
384 	if (state == STATE_AWAKE)
385 		rt2800_mcu_request(rt2x00dev, MCU_WAKEUP, 0xff, 0, 2);
386 	else
387 		rt2800_mcu_request(rt2x00dev, MCU_SLEEP, 0xff, 0xff, 2);
388 
389 	return 0;
390 }
391 
392 static int rt2800usb_set_device_state(struct rt2x00_dev *rt2x00dev,
393 				      enum dev_state state)
394 {
395 	int retval = 0;
396 
397 	switch (state) {
398 	case STATE_RADIO_ON:
399 		/*
400 		 * Before the radio can be enabled, the device first has
401 		 * to be woken up. After that it needs a bit of time
402 		 * to be fully awake and then the radio can be enabled.
403 		 */
404 		rt2800usb_set_state(rt2x00dev, STATE_AWAKE);
405 		msleep(1);
406 		retval = rt2800usb_enable_radio(rt2x00dev);
407 		break;
408 	case STATE_RADIO_OFF:
409 		/*
410 		 * After the radio has been disabled, the device should
411 		 * be put to sleep for powersaving.
412 		 */
413 		rt2800usb_disable_radio(rt2x00dev);
414 		rt2800usb_set_state(rt2x00dev, STATE_SLEEP);
415 		break;
416 	case STATE_RADIO_IRQ_ON:
417 	case STATE_RADIO_IRQ_OFF:
418 		/* No support, but no error either */
419 		break;
420 	case STATE_DEEP_SLEEP:
421 	case STATE_SLEEP:
422 	case STATE_STANDBY:
423 	case STATE_AWAKE:
424 		retval = rt2800usb_set_state(rt2x00dev, state);
425 		break;
426 	default:
427 		retval = -ENOTSUPP;
428 		break;
429 	}
430 
431 	if (unlikely(retval))
432 		rt2x00_err(rt2x00dev, "Device failed to enter state %d (%d)\n",
433 			   state, retval);
434 
435 	return retval;
436 }
437 
438 /*
439  * TX descriptor initialization
440  */
441 static __le32 *rt2800usb_get_txwi(struct queue_entry *entry)
442 {
443 	if (entry->queue->qid == QID_BEACON)
444 		return (__le32 *) (entry->skb->data);
445 	else
446 		return (__le32 *) (entry->skb->data + TXINFO_DESC_SIZE);
447 }
448 
449 static void rt2800usb_write_tx_desc(struct queue_entry *entry,
450 				    struct txentry_desc *txdesc)
451 {
452 	struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
453 	__le32 *txi = (__le32 *) entry->skb->data;
454 	u32 word;
455 
456 	/*
457 	 * Initialize TXINFO descriptor
458 	 */
459 	rt2x00_desc_read(txi, 0, &word);
460 
461 	/*
462 	 * The size of TXINFO_W0_USB_DMA_TX_PKT_LEN is
463 	 * TXWI + 802.11 header + L2 pad + payload + pad,
464 	 * so need to decrease size of TXINFO.
465 	 */
466 	rt2x00_set_field32(&word, TXINFO_W0_USB_DMA_TX_PKT_LEN,
467 			   roundup(entry->skb->len, 4) - TXINFO_DESC_SIZE);
468 	rt2x00_set_field32(&word, TXINFO_W0_WIV,
469 			   !test_bit(ENTRY_TXD_ENCRYPT_IV, &txdesc->flags));
470 	rt2x00_set_field32(&word, TXINFO_W0_QSEL, 2);
471 	rt2x00_set_field32(&word, TXINFO_W0_SW_USE_LAST_ROUND, 0);
472 	rt2x00_set_field32(&word, TXINFO_W0_USB_DMA_NEXT_VALID, 0);
473 	rt2x00_set_field32(&word, TXINFO_W0_USB_DMA_TX_BURST,
474 			   test_bit(ENTRY_TXD_BURST, &txdesc->flags));
475 	rt2x00_desc_write(txi, 0, word);
476 
477 	/*
478 	 * Register descriptor details in skb frame descriptor.
479 	 */
480 	skbdesc->flags |= SKBDESC_DESC_IN_SKB;
481 	skbdesc->desc = txi;
482 	skbdesc->desc_len = TXINFO_DESC_SIZE + entry->queue->winfo_size;
483 }
484 
485 /*
486  * TX data initialization
487  */
488 static int rt2800usb_get_tx_data_len(struct queue_entry *entry)
489 {
490 	/*
491 	 * pad(1~3 bytes) is needed after each 802.11 payload.
492 	 * USB end pad(4 bytes) is needed at each USB bulk out packet end.
493 	 * TX frame format is :
494 	 * | TXINFO | TXWI | 802.11 header | L2 pad | payload | pad | USB end pad |
495 	 *                 |<------------- tx_pkt_len ------------->|
496 	 */
497 
498 	return roundup(entry->skb->len, 4) + 4;
499 }
500 
501 /*
502  * TX control handlers
503  */
504 static bool rt2800usb_txdone_entry_check(struct queue_entry *entry, u32 reg)
505 {
506 	__le32 *txwi;
507 	u32 word;
508 	int wcid, ack, pid;
509 	int tx_wcid, tx_ack, tx_pid, is_agg;
510 
511 	/*
512 	 * This frames has returned with an IO error,
513 	 * so the status report is not intended for this
514 	 * frame.
515 	 */
516 	if (test_bit(ENTRY_DATA_IO_FAILED, &entry->flags))
517 		return false;
518 
519 	wcid	= rt2x00_get_field32(reg, TX_STA_FIFO_WCID);
520 	ack	= rt2x00_get_field32(reg, TX_STA_FIFO_TX_ACK_REQUIRED);
521 	pid	= rt2x00_get_field32(reg, TX_STA_FIFO_PID_TYPE);
522 	is_agg	= rt2x00_get_field32(reg, TX_STA_FIFO_TX_AGGRE);
523 
524 	/*
525 	 * Validate if this TX status report is intended for
526 	 * this entry by comparing the WCID/ACK/PID fields.
527 	 */
528 	txwi = rt2800usb_get_txwi(entry);
529 
530 	rt2x00_desc_read(txwi, 1, &word);
531 	tx_wcid = rt2x00_get_field32(word, TXWI_W1_WIRELESS_CLI_ID);
532 	tx_ack  = rt2x00_get_field32(word, TXWI_W1_ACK);
533 	tx_pid  = rt2x00_get_field32(word, TXWI_W1_PACKETID);
534 
535 	if (wcid != tx_wcid || ack != tx_ack || (!is_agg && pid != tx_pid)) {
536 		rt2x00_dbg(entry->queue->rt2x00dev,
537 			   "TX status report missed for queue %d entry %d\n",
538 			   entry->queue->qid, entry->entry_idx);
539 		return false;
540 	}
541 
542 	return true;
543 }
544 
545 static void rt2800usb_txdone(struct rt2x00_dev *rt2x00dev)
546 {
547 	struct data_queue *queue;
548 	struct queue_entry *entry;
549 	u32 reg;
550 	u8 qid;
551 	bool match;
552 
553 	while (kfifo_get(&rt2x00dev->txstatus_fifo, &reg)) {
554 		/*
555 		 * TX_STA_FIFO_PID_QUEUE is a 2-bit field, thus qid is
556 		 * guaranteed to be one of the TX QIDs .
557 		 */
558 		qid = rt2x00_get_field32(reg, TX_STA_FIFO_PID_QUEUE);
559 		queue = rt2x00queue_get_tx_queue(rt2x00dev, qid);
560 
561 		if (unlikely(rt2x00queue_empty(queue))) {
562 			rt2x00_dbg(rt2x00dev, "Got TX status for an empty queue %u, dropping\n",
563 				   qid);
564 			break;
565 		}
566 
567 		entry = rt2x00queue_get_entry(queue, Q_INDEX_DONE);
568 
569 		if (unlikely(test_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags) ||
570 			     !test_bit(ENTRY_DATA_STATUS_PENDING, &entry->flags))) {
571 			rt2x00_warn(rt2x00dev, "Data pending for entry %u in queue %u\n",
572 				    entry->entry_idx, qid);
573 			break;
574 		}
575 
576 		match = rt2800usb_txdone_entry_check(entry, reg);
577 		rt2800_txdone_entry(entry, reg, rt2800usb_get_txwi(entry), match);
578 	}
579 }
580 
581 static void rt2800usb_txdone_nostatus(struct rt2x00_dev *rt2x00dev)
582 {
583 	struct data_queue *queue;
584 	struct queue_entry *entry;
585 
586 	/*
587 	 * Process any trailing TX status reports for IO failures,
588 	 * we loop until we find the first non-IO error entry. This
589 	 * can either be a frame which is free, is being uploaded,
590 	 * or has completed the upload but didn't have an entry
591 	 * in the TX_STAT_FIFO register yet.
592 	 */
593 	tx_queue_for_each(rt2x00dev, queue) {
594 		while (!rt2x00queue_empty(queue)) {
595 			entry = rt2x00queue_get_entry(queue, Q_INDEX_DONE);
596 
597 			if (test_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags) ||
598 			    !test_bit(ENTRY_DATA_STATUS_PENDING, &entry->flags))
599 				break;
600 
601 			if (test_bit(ENTRY_DATA_IO_FAILED, &entry->flags) ||
602 			    rt2800usb_entry_txstatus_timeout(entry))
603 				rt2x00lib_txdone_noinfo(entry, TXDONE_FAILURE);
604 			else
605 				break;
606 		}
607 	}
608 }
609 
610 static void rt2800usb_work_txdone(struct work_struct *work)
611 {
612 	struct rt2x00_dev *rt2x00dev =
613 	    container_of(work, struct rt2x00_dev, txdone_work);
614 
615 	while (!kfifo_is_empty(&rt2x00dev->txstatus_fifo) ||
616 	       rt2800usb_txstatus_timeout(rt2x00dev)) {
617 
618 		rt2800usb_txdone(rt2x00dev);
619 
620 		rt2800usb_txdone_nostatus(rt2x00dev);
621 
622 		/*
623 		 * The hw may delay sending the packet after DMA complete
624 		 * if the medium is busy, thus the TX_STA_FIFO entry is
625 		 * also delayed -> use a timer to retrieve it.
626 		 */
627 		if (rt2800usb_txstatus_pending(rt2x00dev))
628 			rt2800usb_async_read_tx_status(rt2x00dev);
629 	}
630 }
631 
632 /*
633  * RX control handlers
634  */
635 static void rt2800usb_fill_rxdone(struct queue_entry *entry,
636 				  struct rxdone_entry_desc *rxdesc)
637 {
638 	struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
639 	__le32 *rxi = (__le32 *)entry->skb->data;
640 	__le32 *rxd;
641 	u32 word;
642 	int rx_pkt_len;
643 
644 	/*
645 	 * Copy descriptor to the skbdesc->desc buffer, making it safe from
646 	 * moving of frame data in rt2x00usb.
647 	 */
648 	memcpy(skbdesc->desc, rxi, skbdesc->desc_len);
649 
650 	/*
651 	 * RX frame format is :
652 	 * | RXINFO | RXWI | header | L2 pad | payload | pad | RXD | USB pad |
653 	 *          |<------------ rx_pkt_len -------------->|
654 	 */
655 	rt2x00_desc_read(rxi, 0, &word);
656 	rx_pkt_len = rt2x00_get_field32(word, RXINFO_W0_USB_DMA_RX_PKT_LEN);
657 
658 	/*
659 	 * Remove the RXINFO structure from the sbk.
660 	 */
661 	skb_pull(entry->skb, RXINFO_DESC_SIZE);
662 
663 	/*
664 	 * Check for rx_pkt_len validity. Return if invalid, leaving
665 	 * rxdesc->size zeroed out by the upper level.
666 	 */
667 	if (unlikely(rx_pkt_len == 0 ||
668 			rx_pkt_len > entry->queue->data_size)) {
669 		rt2x00_err(entry->queue->rt2x00dev,
670 			   "Bad frame size %d, forcing to 0\n", rx_pkt_len);
671 		return;
672 	}
673 
674 	rxd = (__le32 *)(entry->skb->data + rx_pkt_len);
675 
676 	/*
677 	 * It is now safe to read the descriptor on all architectures.
678 	 */
679 	rt2x00_desc_read(rxd, 0, &word);
680 
681 	if (rt2x00_get_field32(word, RXD_W0_CRC_ERROR))
682 		rxdesc->flags |= RX_FLAG_FAILED_FCS_CRC;
683 
684 	rxdesc->cipher_status = rt2x00_get_field32(word, RXD_W0_CIPHER_ERROR);
685 
686 	if (rt2x00_get_field32(word, RXD_W0_DECRYPTED)) {
687 		/*
688 		 * Hardware has stripped IV/EIV data from 802.11 frame during
689 		 * decryption. Unfortunately the descriptor doesn't contain
690 		 * any fields with the EIV/IV data either, so they can't
691 		 * be restored by rt2x00lib.
692 		 */
693 		rxdesc->flags |= RX_FLAG_IV_STRIPPED;
694 
695 		/*
696 		 * The hardware has already checked the Michael Mic and has
697 		 * stripped it from the frame. Signal this to mac80211.
698 		 */
699 		rxdesc->flags |= RX_FLAG_MMIC_STRIPPED;
700 
701 		if (rxdesc->cipher_status == RX_CRYPTO_SUCCESS)
702 			rxdesc->flags |= RX_FLAG_DECRYPTED;
703 		else if (rxdesc->cipher_status == RX_CRYPTO_FAIL_MIC)
704 			rxdesc->flags |= RX_FLAG_MMIC_ERROR;
705 	}
706 
707 	if (rt2x00_get_field32(word, RXD_W0_MY_BSS))
708 		rxdesc->dev_flags |= RXDONE_MY_BSS;
709 
710 	if (rt2x00_get_field32(word, RXD_W0_L2PAD))
711 		rxdesc->dev_flags |= RXDONE_L2PAD;
712 
713 	/*
714 	 * Remove RXD descriptor from end of buffer.
715 	 */
716 	skb_trim(entry->skb, rx_pkt_len);
717 
718 	/*
719 	 * Process the RXWI structure.
720 	 */
721 	rt2800_process_rxwi(entry, rxdesc);
722 }
723 
724 /*
725  * Device probe functions.
726  */
727 static int rt2800usb_efuse_detect(struct rt2x00_dev *rt2x00dev)
728 {
729 	int retval;
730 
731 	retval = rt2800usb_autorun_detect(rt2x00dev);
732 	if (retval < 0)
733 		return retval;
734 	if (retval)
735 		return 1;
736 	return rt2800_efuse_detect(rt2x00dev);
737 }
738 
739 static int rt2800usb_read_eeprom(struct rt2x00_dev *rt2x00dev)
740 {
741 	int retval;
742 
743 	retval = rt2800usb_efuse_detect(rt2x00dev);
744 	if (retval < 0)
745 		return retval;
746 	if (retval)
747 		retval = rt2800_read_eeprom_efuse(rt2x00dev);
748 	else
749 		retval = rt2x00usb_eeprom_read(rt2x00dev, rt2x00dev->eeprom,
750 					       EEPROM_SIZE);
751 
752 	return retval;
753 }
754 
755 static int rt2800usb_probe_hw(struct rt2x00_dev *rt2x00dev)
756 {
757 	int retval;
758 
759 	retval = rt2800_probe_hw(rt2x00dev);
760 	if (retval)
761 		return retval;
762 
763 	/*
764 	 * Set txstatus timer function.
765 	 */
766 	rt2x00dev->txstatus_timer.function = rt2800usb_tx_sta_fifo_timeout;
767 
768 	/*
769 	 * Overwrite TX done handler
770 	 */
771 	INIT_WORK(&rt2x00dev->txdone_work, rt2800usb_work_txdone);
772 
773 	return 0;
774 }
775 
776 static const struct ieee80211_ops rt2800usb_mac80211_ops = {
777 	.tx			= rt2x00mac_tx,
778 	.start			= rt2x00mac_start,
779 	.stop			= rt2x00mac_stop,
780 	.add_interface		= rt2x00mac_add_interface,
781 	.remove_interface	= rt2x00mac_remove_interface,
782 	.config			= rt2x00mac_config,
783 	.configure_filter	= rt2x00mac_configure_filter,
784 	.set_tim		= rt2x00mac_set_tim,
785 	.set_key		= rt2x00mac_set_key,
786 	.sw_scan_start		= rt2x00mac_sw_scan_start,
787 	.sw_scan_complete	= rt2x00mac_sw_scan_complete,
788 	.get_stats		= rt2x00mac_get_stats,
789 	.get_key_seq		= rt2800_get_key_seq,
790 	.set_rts_threshold	= rt2800_set_rts_threshold,
791 	.sta_add		= rt2x00mac_sta_add,
792 	.sta_remove		= rt2x00mac_sta_remove,
793 	.bss_info_changed	= rt2x00mac_bss_info_changed,
794 	.conf_tx		= rt2800_conf_tx,
795 	.get_tsf		= rt2800_get_tsf,
796 	.rfkill_poll		= rt2x00mac_rfkill_poll,
797 	.ampdu_action		= rt2800_ampdu_action,
798 	.flush			= rt2x00mac_flush,
799 	.get_survey		= rt2800_get_survey,
800 	.get_ringparam		= rt2x00mac_get_ringparam,
801 	.tx_frames_pending	= rt2x00mac_tx_frames_pending,
802 };
803 
804 static const struct rt2800_ops rt2800usb_rt2800_ops = {
805 	.register_read		= rt2x00usb_register_read,
806 	.register_read_lock	= rt2x00usb_register_read_lock,
807 	.register_write		= rt2x00usb_register_write,
808 	.register_write_lock	= rt2x00usb_register_write_lock,
809 	.register_multiread	= rt2x00usb_register_multiread,
810 	.register_multiwrite	= rt2x00usb_register_multiwrite,
811 	.regbusy_read		= rt2x00usb_regbusy_read,
812 	.read_eeprom		= rt2800usb_read_eeprom,
813 	.hwcrypt_disabled	= rt2800usb_hwcrypt_disabled,
814 	.drv_write_firmware	= rt2800usb_write_firmware,
815 	.drv_init_registers	= rt2800usb_init_registers,
816 	.drv_get_txwi		= rt2800usb_get_txwi,
817 };
818 
819 static const struct rt2x00lib_ops rt2800usb_rt2x00_ops = {
820 	.probe_hw		= rt2800usb_probe_hw,
821 	.get_firmware_name	= rt2800usb_get_firmware_name,
822 	.check_firmware		= rt2800_check_firmware,
823 	.load_firmware		= rt2800_load_firmware,
824 	.initialize		= rt2x00usb_initialize,
825 	.uninitialize		= rt2x00usb_uninitialize,
826 	.clear_entry		= rt2x00usb_clear_entry,
827 	.set_device_state	= rt2800usb_set_device_state,
828 	.rfkill_poll		= rt2800_rfkill_poll,
829 	.link_stats		= rt2800_link_stats,
830 	.reset_tuner		= rt2800_reset_tuner,
831 	.link_tuner		= rt2800_link_tuner,
832 	.gain_calibration	= rt2800_gain_calibration,
833 	.vco_calibration	= rt2800_vco_calibration,
834 	.start_queue		= rt2800usb_start_queue,
835 	.kick_queue		= rt2x00usb_kick_queue,
836 	.stop_queue		= rt2800usb_stop_queue,
837 	.flush_queue		= rt2x00usb_flush_queue,
838 	.tx_dma_done		= rt2800usb_tx_dma_done,
839 	.write_tx_desc		= rt2800usb_write_tx_desc,
840 	.write_tx_data		= rt2800_write_tx_data,
841 	.write_beacon		= rt2800_write_beacon,
842 	.clear_beacon		= rt2800_clear_beacon,
843 	.get_tx_data_len	= rt2800usb_get_tx_data_len,
844 	.fill_rxdone		= rt2800usb_fill_rxdone,
845 	.config_shared_key	= rt2800_config_shared_key,
846 	.config_pairwise_key	= rt2800_config_pairwise_key,
847 	.config_filter		= rt2800_config_filter,
848 	.config_intf		= rt2800_config_intf,
849 	.config_erp		= rt2800_config_erp,
850 	.config_ant		= rt2800_config_ant,
851 	.config			= rt2800_config,
852 	.sta_add		= rt2800_sta_add,
853 	.sta_remove		= rt2800_sta_remove,
854 };
855 
856 static void rt2800usb_queue_init(struct data_queue *queue)
857 {
858 	struct rt2x00_dev *rt2x00dev = queue->rt2x00dev;
859 	unsigned short txwi_size, rxwi_size;
860 
861 	rt2800_get_txwi_rxwi_size(rt2x00dev, &txwi_size, &rxwi_size);
862 
863 	switch (queue->qid) {
864 	case QID_RX:
865 		queue->limit = 128;
866 		queue->data_size = AGGREGATION_SIZE;
867 		queue->desc_size = RXINFO_DESC_SIZE;
868 		queue->winfo_size = rxwi_size;
869 		queue->priv_size = sizeof(struct queue_entry_priv_usb);
870 		break;
871 
872 	case QID_AC_VO:
873 	case QID_AC_VI:
874 	case QID_AC_BE:
875 	case QID_AC_BK:
876 		queue->limit = 16;
877 		queue->data_size = AGGREGATION_SIZE;
878 		queue->desc_size = TXINFO_DESC_SIZE;
879 		queue->winfo_size = txwi_size;
880 		queue->priv_size = sizeof(struct queue_entry_priv_usb);
881 		break;
882 
883 	case QID_BEACON:
884 		queue->limit = 8;
885 		queue->data_size = MGMT_FRAME_SIZE;
886 		queue->desc_size = TXINFO_DESC_SIZE;
887 		queue->winfo_size = txwi_size;
888 		queue->priv_size = sizeof(struct queue_entry_priv_usb);
889 		break;
890 
891 	case QID_ATIM:
892 		/* fallthrough */
893 	default:
894 		BUG();
895 		break;
896 	}
897 }
898 
899 static const struct rt2x00_ops rt2800usb_ops = {
900 	.name			= KBUILD_MODNAME,
901 	.drv_data_size		= sizeof(struct rt2800_drv_data),
902 	.max_ap_intf		= 8,
903 	.eeprom_size		= EEPROM_SIZE,
904 	.rf_size		= RF_SIZE,
905 	.tx_queues		= NUM_TX_QUEUES,
906 	.queue_init		= rt2800usb_queue_init,
907 	.lib			= &rt2800usb_rt2x00_ops,
908 	.drv			= &rt2800usb_rt2800_ops,
909 	.hw			= &rt2800usb_mac80211_ops,
910 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
911 	.debugfs		= &rt2800_rt2x00debug,
912 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
913 };
914 
915 /*
916  * rt2800usb module information.
917  */
918 static struct usb_device_id rt2800usb_device_table[] = {
919 	/* Abocom */
920 	{ USB_DEVICE(0x07b8, 0x2870) },
921 	{ USB_DEVICE(0x07b8, 0x2770) },
922 	{ USB_DEVICE(0x07b8, 0x3070) },
923 	{ USB_DEVICE(0x07b8, 0x3071) },
924 	{ USB_DEVICE(0x07b8, 0x3072) },
925 	{ USB_DEVICE(0x1482, 0x3c09) },
926 	/* AirTies */
927 	{ USB_DEVICE(0x1eda, 0x2012) },
928 	{ USB_DEVICE(0x1eda, 0x2210) },
929 	{ USB_DEVICE(0x1eda, 0x2310) },
930 	/* Allwin */
931 	{ USB_DEVICE(0x8516, 0x2070) },
932 	{ USB_DEVICE(0x8516, 0x2770) },
933 	{ USB_DEVICE(0x8516, 0x2870) },
934 	{ USB_DEVICE(0x8516, 0x3070) },
935 	{ USB_DEVICE(0x8516, 0x3071) },
936 	{ USB_DEVICE(0x8516, 0x3072) },
937 	/* Alpha Networks */
938 	{ USB_DEVICE(0x14b2, 0x3c06) },
939 	{ USB_DEVICE(0x14b2, 0x3c07) },
940 	{ USB_DEVICE(0x14b2, 0x3c09) },
941 	{ USB_DEVICE(0x14b2, 0x3c12) },
942 	{ USB_DEVICE(0x14b2, 0x3c23) },
943 	{ USB_DEVICE(0x14b2, 0x3c25) },
944 	{ USB_DEVICE(0x14b2, 0x3c27) },
945 	{ USB_DEVICE(0x14b2, 0x3c28) },
946 	{ USB_DEVICE(0x14b2, 0x3c2c) },
947 	/* Amit */
948 	{ USB_DEVICE(0x15c5, 0x0008) },
949 	/* Askey */
950 	{ USB_DEVICE(0x1690, 0x0740) },
951 	/* ASUS */
952 	{ USB_DEVICE(0x0b05, 0x1731) },
953 	{ USB_DEVICE(0x0b05, 0x1732) },
954 	{ USB_DEVICE(0x0b05, 0x1742) },
955 	{ USB_DEVICE(0x0b05, 0x1784) },
956 	{ USB_DEVICE(0x1761, 0x0b05) },
957 	/* AzureWave */
958 	{ USB_DEVICE(0x13d3, 0x3247) },
959 	{ USB_DEVICE(0x13d3, 0x3273) },
960 	{ USB_DEVICE(0x13d3, 0x3305) },
961 	{ USB_DEVICE(0x13d3, 0x3307) },
962 	{ USB_DEVICE(0x13d3, 0x3321) },
963 	/* Belkin */
964 	{ USB_DEVICE(0x050d, 0x8053) },
965 	{ USB_DEVICE(0x050d, 0x805c) },
966 	{ USB_DEVICE(0x050d, 0x815c) },
967 	{ USB_DEVICE(0x050d, 0x825a) },
968 	{ USB_DEVICE(0x050d, 0x825b) },
969 	{ USB_DEVICE(0x050d, 0x935a) },
970 	{ USB_DEVICE(0x050d, 0x935b) },
971 	/* Buffalo */
972 	{ USB_DEVICE(0x0411, 0x00e8) },
973 	{ USB_DEVICE(0x0411, 0x0158) },
974 	{ USB_DEVICE(0x0411, 0x015d) },
975 	{ USB_DEVICE(0x0411, 0x016f) },
976 	{ USB_DEVICE(0x0411, 0x01a2) },
977 	{ USB_DEVICE(0x0411, 0x01ee) },
978 	{ USB_DEVICE(0x0411, 0x01a8) },
979 	{ USB_DEVICE(0x0411, 0x01fd) },
980 	/* Corega */
981 	{ USB_DEVICE(0x07aa, 0x002f) },
982 	{ USB_DEVICE(0x07aa, 0x003c) },
983 	{ USB_DEVICE(0x07aa, 0x003f) },
984 	{ USB_DEVICE(0x18c5, 0x0012) },
985 	/* D-Link */
986 	{ USB_DEVICE(0x07d1, 0x3c09) },
987 	{ USB_DEVICE(0x07d1, 0x3c0a) },
988 	{ USB_DEVICE(0x07d1, 0x3c0d) },
989 	{ USB_DEVICE(0x07d1, 0x3c0e) },
990 	{ USB_DEVICE(0x07d1, 0x3c0f) },
991 	{ USB_DEVICE(0x07d1, 0x3c11) },
992 	{ USB_DEVICE(0x07d1, 0x3c13) },
993 	{ USB_DEVICE(0x07d1, 0x3c15) },
994 	{ USB_DEVICE(0x07d1, 0x3c16) },
995 	{ USB_DEVICE(0x07d1, 0x3c17) },
996 	{ USB_DEVICE(0x2001, 0x3317) },
997 	{ USB_DEVICE(0x2001, 0x3c1b) },
998 	{ USB_DEVICE(0x2001, 0x3c25) },
999 	/* Draytek */
1000 	{ USB_DEVICE(0x07fa, 0x7712) },
1001 	/* DVICO */
1002 	{ USB_DEVICE(0x0fe9, 0xb307) },
1003 	/* Edimax */
1004 	{ USB_DEVICE(0x7392, 0x4085) },
1005 	{ USB_DEVICE(0x7392, 0x7711) },
1006 	{ USB_DEVICE(0x7392, 0x7717) },
1007 	{ USB_DEVICE(0x7392, 0x7718) },
1008 	{ USB_DEVICE(0x7392, 0x7722) },
1009 	/* Encore */
1010 	{ USB_DEVICE(0x203d, 0x1480) },
1011 	{ USB_DEVICE(0x203d, 0x14a9) },
1012 	/* EnGenius */
1013 	{ USB_DEVICE(0x1740, 0x9701) },
1014 	{ USB_DEVICE(0x1740, 0x9702) },
1015 	{ USB_DEVICE(0x1740, 0x9703) },
1016 	{ USB_DEVICE(0x1740, 0x9705) },
1017 	{ USB_DEVICE(0x1740, 0x9706) },
1018 	{ USB_DEVICE(0x1740, 0x9707) },
1019 	{ USB_DEVICE(0x1740, 0x9708) },
1020 	{ USB_DEVICE(0x1740, 0x9709) },
1021 	/* Gemtek */
1022 	{ USB_DEVICE(0x15a9, 0x0012) },
1023 	/* Gigabyte */
1024 	{ USB_DEVICE(0x1044, 0x800b) },
1025 	{ USB_DEVICE(0x1044, 0x800d) },
1026 	/* Hawking */
1027 	{ USB_DEVICE(0x0e66, 0x0001) },
1028 	{ USB_DEVICE(0x0e66, 0x0003) },
1029 	{ USB_DEVICE(0x0e66, 0x0009) },
1030 	{ USB_DEVICE(0x0e66, 0x000b) },
1031 	{ USB_DEVICE(0x0e66, 0x0013) },
1032 	{ USB_DEVICE(0x0e66, 0x0017) },
1033 	{ USB_DEVICE(0x0e66, 0x0018) },
1034 	/* I-O DATA */
1035 	{ USB_DEVICE(0x04bb, 0x0945) },
1036 	{ USB_DEVICE(0x04bb, 0x0947) },
1037 	{ USB_DEVICE(0x04bb, 0x0948) },
1038 	/* Linksys */
1039 	{ USB_DEVICE(0x13b1, 0x0031) },
1040 	{ USB_DEVICE(0x1737, 0x0070) },
1041 	{ USB_DEVICE(0x1737, 0x0071) },
1042 	{ USB_DEVICE(0x1737, 0x0077) },
1043 	{ USB_DEVICE(0x1737, 0x0078) },
1044 	/* Logitec */
1045 	{ USB_DEVICE(0x0789, 0x0162) },
1046 	{ USB_DEVICE(0x0789, 0x0163) },
1047 	{ USB_DEVICE(0x0789, 0x0164) },
1048 	{ USB_DEVICE(0x0789, 0x0166) },
1049 	/* Motorola */
1050 	{ USB_DEVICE(0x100d, 0x9031) },
1051 	/* MSI */
1052 	{ USB_DEVICE(0x0db0, 0x3820) },
1053 	{ USB_DEVICE(0x0db0, 0x3821) },
1054 	{ USB_DEVICE(0x0db0, 0x3822) },
1055 	{ USB_DEVICE(0x0db0, 0x3870) },
1056 	{ USB_DEVICE(0x0db0, 0x3871) },
1057 	{ USB_DEVICE(0x0db0, 0x6899) },
1058 	{ USB_DEVICE(0x0db0, 0x821a) },
1059 	{ USB_DEVICE(0x0db0, 0x822a) },
1060 	{ USB_DEVICE(0x0db0, 0x822b) },
1061 	{ USB_DEVICE(0x0db0, 0x822c) },
1062 	{ USB_DEVICE(0x0db0, 0x870a) },
1063 	{ USB_DEVICE(0x0db0, 0x871a) },
1064 	{ USB_DEVICE(0x0db0, 0x871b) },
1065 	{ USB_DEVICE(0x0db0, 0x871c) },
1066 	{ USB_DEVICE(0x0db0, 0x899a) },
1067 	/* Ovislink */
1068 	{ USB_DEVICE(0x1b75, 0x3070) },
1069 	{ USB_DEVICE(0x1b75, 0x3071) },
1070 	{ USB_DEVICE(0x1b75, 0x3072) },
1071 	{ USB_DEVICE(0x1b75, 0xa200) },
1072 	/* Para */
1073 	{ USB_DEVICE(0x20b8, 0x8888) },
1074 	/* Pegatron */
1075 	{ USB_DEVICE(0x1d4d, 0x0002) },
1076 	{ USB_DEVICE(0x1d4d, 0x000c) },
1077 	{ USB_DEVICE(0x1d4d, 0x000e) },
1078 	{ USB_DEVICE(0x1d4d, 0x0011) },
1079 	/* Philips */
1080 	{ USB_DEVICE(0x0471, 0x200f) },
1081 	/* Planex */
1082 	{ USB_DEVICE(0x2019, 0x5201) },
1083 	{ USB_DEVICE(0x2019, 0xab25) },
1084 	{ USB_DEVICE(0x2019, 0xed06) },
1085 	/* Quanta */
1086 	{ USB_DEVICE(0x1a32, 0x0304) },
1087 	/* Ralink */
1088 	{ USB_DEVICE(0x148f, 0x2070) },
1089 	{ USB_DEVICE(0x148f, 0x2770) },
1090 	{ USB_DEVICE(0x148f, 0x2870) },
1091 	{ USB_DEVICE(0x148f, 0x3070) },
1092 	{ USB_DEVICE(0x148f, 0x3071) },
1093 	{ USB_DEVICE(0x148f, 0x3072) },
1094 	/* Samsung */
1095 	{ USB_DEVICE(0x04e8, 0x2018) },
1096 	/* Siemens */
1097 	{ USB_DEVICE(0x129b, 0x1828) },
1098 	/* Sitecom */
1099 	{ USB_DEVICE(0x0df6, 0x0017) },
1100 	{ USB_DEVICE(0x0df6, 0x002b) },
1101 	{ USB_DEVICE(0x0df6, 0x002c) },
1102 	{ USB_DEVICE(0x0df6, 0x002d) },
1103 	{ USB_DEVICE(0x0df6, 0x0039) },
1104 	{ USB_DEVICE(0x0df6, 0x003b) },
1105 	{ USB_DEVICE(0x0df6, 0x003d) },
1106 	{ USB_DEVICE(0x0df6, 0x003e) },
1107 	{ USB_DEVICE(0x0df6, 0x003f) },
1108 	{ USB_DEVICE(0x0df6, 0x0040) },
1109 	{ USB_DEVICE(0x0df6, 0x0042) },
1110 	{ USB_DEVICE(0x0df6, 0x0047) },
1111 	{ USB_DEVICE(0x0df6, 0x0048) },
1112 	{ USB_DEVICE(0x0df6, 0x0051) },
1113 	{ USB_DEVICE(0x0df6, 0x005f) },
1114 	{ USB_DEVICE(0x0df6, 0x0060) },
1115 	/* SMC */
1116 	{ USB_DEVICE(0x083a, 0x6618) },
1117 	{ USB_DEVICE(0x083a, 0x7511) },
1118 	{ USB_DEVICE(0x083a, 0x7512) },
1119 	{ USB_DEVICE(0x083a, 0x7522) },
1120 	{ USB_DEVICE(0x083a, 0x8522) },
1121 	{ USB_DEVICE(0x083a, 0xa618) },
1122 	{ USB_DEVICE(0x083a, 0xa701) },
1123 	{ USB_DEVICE(0x083a, 0xa702) },
1124 	{ USB_DEVICE(0x083a, 0xa703) },
1125 	{ USB_DEVICE(0x083a, 0xb522) },
1126 	/* Sparklan */
1127 	{ USB_DEVICE(0x15a9, 0x0006) },
1128 	/* Sweex */
1129 	{ USB_DEVICE(0x177f, 0x0153) },
1130 	{ USB_DEVICE(0x177f, 0x0164) },
1131 	{ USB_DEVICE(0x177f, 0x0302) },
1132 	{ USB_DEVICE(0x177f, 0x0313) },
1133 	{ USB_DEVICE(0x177f, 0x0323) },
1134 	{ USB_DEVICE(0x177f, 0x0324) },
1135 	/* U-Media */
1136 	{ USB_DEVICE(0x157e, 0x300e) },
1137 	{ USB_DEVICE(0x157e, 0x3013) },
1138 	/* ZCOM */
1139 	{ USB_DEVICE(0x0cde, 0x0022) },
1140 	{ USB_DEVICE(0x0cde, 0x0025) },
1141 	/* Zinwell */
1142 	{ USB_DEVICE(0x5a57, 0x0280) },
1143 	{ USB_DEVICE(0x5a57, 0x0282) },
1144 	{ USB_DEVICE(0x5a57, 0x0283) },
1145 	{ USB_DEVICE(0x5a57, 0x5257) },
1146 	/* Zyxel */
1147 	{ USB_DEVICE(0x0586, 0x3416) },
1148 	{ USB_DEVICE(0x0586, 0x3418) },
1149 	{ USB_DEVICE(0x0586, 0x341a) },
1150 	{ USB_DEVICE(0x0586, 0x341e) },
1151 	{ USB_DEVICE(0x0586, 0x343e) },
1152 #ifdef CONFIG_RT2800USB_RT33XX
1153 	/* Belkin */
1154 	{ USB_DEVICE(0x050d, 0x945b) },
1155 	/* D-Link */
1156 	{ USB_DEVICE(0x2001, 0x3c17) },
1157 	/* Panasonic */
1158 	{ USB_DEVICE(0x083a, 0xb511) },
1159 	/* Philips */
1160 	{ USB_DEVICE(0x0471, 0x20dd) },
1161 	/* Ralink */
1162 	{ USB_DEVICE(0x148f, 0x3370) },
1163 	{ USB_DEVICE(0x148f, 0x8070) },
1164 	/* Sitecom */
1165 	{ USB_DEVICE(0x0df6, 0x0050) },
1166 	/* Sweex */
1167 	{ USB_DEVICE(0x177f, 0x0163) },
1168 	{ USB_DEVICE(0x177f, 0x0165) },
1169 #endif
1170 #ifdef CONFIG_RT2800USB_RT35XX
1171 	/* Allwin */
1172 	{ USB_DEVICE(0x8516, 0x3572) },
1173 	/* Askey */
1174 	{ USB_DEVICE(0x1690, 0x0744) },
1175 	{ USB_DEVICE(0x1690, 0x0761) },
1176 	{ USB_DEVICE(0x1690, 0x0764) },
1177 	/* ASUS */
1178 	{ USB_DEVICE(0x0b05, 0x179d) },
1179 	/* Cisco */
1180 	{ USB_DEVICE(0x167b, 0x4001) },
1181 	/* EnGenius */
1182 	{ USB_DEVICE(0x1740, 0x9801) },
1183 	/* I-O DATA */
1184 	{ USB_DEVICE(0x04bb, 0x0944) },
1185 	/* Linksys */
1186 	{ USB_DEVICE(0x13b1, 0x002f) },
1187 	{ USB_DEVICE(0x1737, 0x0079) },
1188 	/* Logitec */
1189 	{ USB_DEVICE(0x0789, 0x0170) },
1190 	/* Ralink */
1191 	{ USB_DEVICE(0x148f, 0x3572) },
1192 	/* Sitecom */
1193 	{ USB_DEVICE(0x0df6, 0x0041) },
1194 	{ USB_DEVICE(0x0df6, 0x0062) },
1195 	{ USB_DEVICE(0x0df6, 0x0065) },
1196 	{ USB_DEVICE(0x0df6, 0x0066) },
1197 	{ USB_DEVICE(0x0df6, 0x0068) },
1198 	/* Toshiba */
1199 	{ USB_DEVICE(0x0930, 0x0a07) },
1200 	/* Zinwell */
1201 	{ USB_DEVICE(0x5a57, 0x0284) },
1202 #endif
1203 #ifdef CONFIG_RT2800USB_RT3573
1204 	/* AirLive */
1205 	{ USB_DEVICE(0x1b75, 0x7733) },
1206 	/* ASUS */
1207 	{ USB_DEVICE(0x0b05, 0x17bc) },
1208 	{ USB_DEVICE(0x0b05, 0x17ad) },
1209 	/* Belkin */
1210 	{ USB_DEVICE(0x050d, 0x1103) },
1211 	/* Cameo */
1212 	{ USB_DEVICE(0x148f, 0xf301) },
1213 	/* D-Link */
1214 	{ USB_DEVICE(0x2001, 0x3c1f) },
1215 	/* Edimax */
1216 	{ USB_DEVICE(0x7392, 0x7733) },
1217 	/* Hawking */
1218 	{ USB_DEVICE(0x0e66, 0x0020) },
1219 	{ USB_DEVICE(0x0e66, 0x0021) },
1220 	/* I-O DATA */
1221 	{ USB_DEVICE(0x04bb, 0x094e) },
1222 	/* Linksys */
1223 	{ USB_DEVICE(0x13b1, 0x003b) },
1224 	/* Logitec */
1225 	{ USB_DEVICE(0x0789, 0x016b) },
1226 	/* NETGEAR */
1227 	{ USB_DEVICE(0x0846, 0x9012) },
1228 	{ USB_DEVICE(0x0846, 0x9013) },
1229 	{ USB_DEVICE(0x0846, 0x9019) },
1230 	/* Planex */
1231 	{ USB_DEVICE(0x2019, 0xed19) },
1232 	/* Ralink */
1233 	{ USB_DEVICE(0x148f, 0x3573) },
1234 	/* Sitecom */
1235 	{ USB_DEVICE(0x0df6, 0x0067) },
1236 	{ USB_DEVICE(0x0df6, 0x006a) },
1237 	{ USB_DEVICE(0x0df6, 0x006e) },
1238 	/* ZyXEL */
1239 	{ USB_DEVICE(0x0586, 0x3421) },
1240 #endif
1241 #ifdef CONFIG_RT2800USB_RT53XX
1242 	/* Arcadyan */
1243 	{ USB_DEVICE(0x043e, 0x7a12) },
1244 	{ USB_DEVICE(0x043e, 0x7a32) },
1245 	/* ASUS */
1246 	{ USB_DEVICE(0x0b05, 0x17e8) },
1247 	/* Azurewave */
1248 	{ USB_DEVICE(0x13d3, 0x3329) },
1249 	{ USB_DEVICE(0x13d3, 0x3365) },
1250 	/* D-Link */
1251 	{ USB_DEVICE(0x2001, 0x3c15) },
1252 	{ USB_DEVICE(0x2001, 0x3c19) },
1253 	{ USB_DEVICE(0x2001, 0x3c1c) },
1254 	{ USB_DEVICE(0x2001, 0x3c1d) },
1255 	{ USB_DEVICE(0x2001, 0x3c1e) },
1256 	{ USB_DEVICE(0x2001, 0x3c20) },
1257 	{ USB_DEVICE(0x2001, 0x3c22) },
1258 	{ USB_DEVICE(0x2001, 0x3c23) },
1259 	/* LG innotek */
1260 	{ USB_DEVICE(0x043e, 0x7a22) },
1261 	{ USB_DEVICE(0x043e, 0x7a42) },
1262 	/* Panasonic */
1263 	{ USB_DEVICE(0x04da, 0x1801) },
1264 	{ USB_DEVICE(0x04da, 0x1800) },
1265 	{ USB_DEVICE(0x04da, 0x23f6) },
1266 	/* Philips */
1267 	{ USB_DEVICE(0x0471, 0x2104) },
1268 	{ USB_DEVICE(0x0471, 0x2126) },
1269 	{ USB_DEVICE(0x0471, 0x2180) },
1270 	{ USB_DEVICE(0x0471, 0x2181) },
1271 	{ USB_DEVICE(0x0471, 0x2182) },
1272 	/* Ralink */
1273 	{ USB_DEVICE(0x148f, 0x5370) },
1274 	{ USB_DEVICE(0x148f, 0x5372) },
1275 #endif
1276 #ifdef CONFIG_RT2800USB_RT55XX
1277 	/* Arcadyan */
1278 	{ USB_DEVICE(0x043e, 0x7a32) },
1279 	/* AVM GmbH */
1280 	{ USB_DEVICE(0x057c, 0x8501) },
1281 	/* Buffalo */
1282 	{ USB_DEVICE(0x0411, 0x0241) },
1283 	{ USB_DEVICE(0x0411, 0x0253) },
1284 	/* D-Link */
1285 	{ USB_DEVICE(0x2001, 0x3c1a) },
1286 	{ USB_DEVICE(0x2001, 0x3c21) },
1287 	/* Proware */
1288 	{ USB_DEVICE(0x043e, 0x7a13) },
1289 	/* Ralink */
1290 	{ USB_DEVICE(0x148f, 0x5572) },
1291 	/* TRENDnet */
1292 	{ USB_DEVICE(0x20f4, 0x724a) },
1293 #endif
1294 #ifdef CONFIG_RT2800USB_UNKNOWN
1295 	/*
1296 	 * Unclear what kind of devices these are (they aren't supported by the
1297 	 * vendor linux driver).
1298 	 */
1299 	/* Abocom */
1300 	{ USB_DEVICE(0x07b8, 0x3073) },
1301 	{ USB_DEVICE(0x07b8, 0x3074) },
1302 	/* Alpha Networks */
1303 	{ USB_DEVICE(0x14b2, 0x3c08) },
1304 	{ USB_DEVICE(0x14b2, 0x3c11) },
1305 	/* Amigo */
1306 	{ USB_DEVICE(0x0e0b, 0x9031) },
1307 	{ USB_DEVICE(0x0e0b, 0x9041) },
1308 	/* ASUS */
1309 	{ USB_DEVICE(0x0b05, 0x166a) },
1310 	{ USB_DEVICE(0x0b05, 0x1760) },
1311 	{ USB_DEVICE(0x0b05, 0x1761) },
1312 	{ USB_DEVICE(0x0b05, 0x1790) },
1313 	{ USB_DEVICE(0x0b05, 0x17a7) },
1314 	/* AzureWave */
1315 	{ USB_DEVICE(0x13d3, 0x3262) },
1316 	{ USB_DEVICE(0x13d3, 0x3284) },
1317 	{ USB_DEVICE(0x13d3, 0x3322) },
1318 	{ USB_DEVICE(0x13d3, 0x3340) },
1319 	{ USB_DEVICE(0x13d3, 0x3399) },
1320 	{ USB_DEVICE(0x13d3, 0x3400) },
1321 	{ USB_DEVICE(0x13d3, 0x3401) },
1322 	/* Belkin */
1323 	{ USB_DEVICE(0x050d, 0x1003) },
1324 	/* Buffalo */
1325 	{ USB_DEVICE(0x0411, 0x012e) },
1326 	{ USB_DEVICE(0x0411, 0x0148) },
1327 	{ USB_DEVICE(0x0411, 0x0150) },
1328 	/* Corega */
1329 	{ USB_DEVICE(0x07aa, 0x0041) },
1330 	{ USB_DEVICE(0x07aa, 0x0042) },
1331 	{ USB_DEVICE(0x18c5, 0x0008) },
1332 	/* D-Link */
1333 	{ USB_DEVICE(0x07d1, 0x3c0b) },
1334 	/* Encore */
1335 	{ USB_DEVICE(0x203d, 0x14a1) },
1336 	/* EnGenius */
1337 	{ USB_DEVICE(0x1740, 0x0600) },
1338 	{ USB_DEVICE(0x1740, 0x0602) },
1339 	/* Gemtek */
1340 	{ USB_DEVICE(0x15a9, 0x0010) },
1341 	/* Gigabyte */
1342 	{ USB_DEVICE(0x1044, 0x800c) },
1343 	/* Hercules */
1344 	{ USB_DEVICE(0x06f8, 0xe036) },
1345 	/* Huawei */
1346 	{ USB_DEVICE(0x148f, 0xf101) },
1347 	/* I-O DATA */
1348 	{ USB_DEVICE(0x04bb, 0x094b) },
1349 	/* LevelOne */
1350 	{ USB_DEVICE(0x1740, 0x0605) },
1351 	{ USB_DEVICE(0x1740, 0x0615) },
1352 	/* Logitec */
1353 	{ USB_DEVICE(0x0789, 0x0168) },
1354 	{ USB_DEVICE(0x0789, 0x0169) },
1355 	/* Motorola */
1356 	{ USB_DEVICE(0x100d, 0x9032) },
1357 	/* Pegatron */
1358 	{ USB_DEVICE(0x05a6, 0x0101) },
1359 	{ USB_DEVICE(0x1d4d, 0x0010) },
1360 	/* Planex */
1361 	{ USB_DEVICE(0x2019, 0xab24) },
1362 	{ USB_DEVICE(0x2019, 0xab29) },
1363 	/* Qcom */
1364 	{ USB_DEVICE(0x18e8, 0x6259) },
1365 	/* RadioShack */
1366 	{ USB_DEVICE(0x08b9, 0x1197) },
1367 	/* Sitecom */
1368 	{ USB_DEVICE(0x0df6, 0x003c) },
1369 	{ USB_DEVICE(0x0df6, 0x004a) },
1370 	{ USB_DEVICE(0x0df6, 0x004d) },
1371 	{ USB_DEVICE(0x0df6, 0x0053) },
1372 	{ USB_DEVICE(0x0df6, 0x0069) },
1373 	{ USB_DEVICE(0x0df6, 0x006f) },
1374 	{ USB_DEVICE(0x0df6, 0x0078) },
1375 	/* SMC */
1376 	{ USB_DEVICE(0x083a, 0xa512) },
1377 	{ USB_DEVICE(0x083a, 0xc522) },
1378 	{ USB_DEVICE(0x083a, 0xd522) },
1379 	{ USB_DEVICE(0x083a, 0xf511) },
1380 	/* Sweex */
1381 	{ USB_DEVICE(0x177f, 0x0254) },
1382 	/* TP-LINK */
1383 	{ USB_DEVICE(0xf201, 0x5370) },
1384 #endif
1385 	{ 0, }
1386 };
1387 
1388 MODULE_AUTHOR(DRV_PROJECT);
1389 MODULE_VERSION(DRV_VERSION);
1390 MODULE_DESCRIPTION("Ralink RT2800 USB Wireless LAN driver.");
1391 MODULE_SUPPORTED_DEVICE("Ralink RT2870 USB chipset based cards");
1392 MODULE_DEVICE_TABLE(usb, rt2800usb_device_table);
1393 MODULE_FIRMWARE(FIRMWARE_RT2870);
1394 MODULE_LICENSE("GPL");
1395 
1396 static int rt2800usb_probe(struct usb_interface *usb_intf,
1397 			   const struct usb_device_id *id)
1398 {
1399 	return rt2x00usb_probe(usb_intf, &rt2800usb_ops);
1400 }
1401 
1402 static struct usb_driver rt2800usb_driver = {
1403 	.name		= KBUILD_MODNAME,
1404 	.id_table	= rt2800usb_device_table,
1405 	.probe		= rt2800usb_probe,
1406 	.disconnect	= rt2x00usb_disconnect,
1407 	.suspend	= rt2x00usb_suspend,
1408 	.resume		= rt2x00usb_resume,
1409 	.reset_resume	= rt2x00usb_resume,
1410 	.disable_hub_initiated_lpm = 1,
1411 };
1412 
1413 module_usb_driver(rt2800usb_driver);
1414