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(100));
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 			      ktime_set(0, 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 		      ktime_set(0, 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_register_write(rt2x00dev, USB_DMA_CFG, 0x00000000);
345 
346 	rt2x00usb_vendor_request_sw(rt2x00dev, USB_DEVICE_MODE, 0,
347 				    USB_MODE_RESET, REGISTER_TIMEOUT);
348 
349 	rt2x00usb_register_write(rt2x00dev, MAC_SYS_CTRL, 0x00000000);
350 
351 	return 0;
352 }
353 
354 static int rt2800usb_enable_radio(struct rt2x00_dev *rt2x00dev)
355 {
356 	u32 reg;
357 
358 	if (unlikely(rt2800_wait_wpdma_ready(rt2x00dev)))
359 		return -EIO;
360 
361 	rt2x00usb_register_read(rt2x00dev, USB_DMA_CFG, &reg);
362 	rt2x00_set_field32(&reg, USB_DMA_CFG_PHY_CLEAR, 0);
363 	rt2x00_set_field32(&reg, USB_DMA_CFG_RX_BULK_AGG_EN, 0);
364 	rt2x00_set_field32(&reg, USB_DMA_CFG_RX_BULK_AGG_TIMEOUT, 128);
365 	/*
366 	 * Total room for RX frames in kilobytes, PBF might still exceed
367 	 * this limit so reduce the number to prevent errors.
368 	 */
369 	rt2x00_set_field32(&reg, USB_DMA_CFG_RX_BULK_AGG_LIMIT,
370 			   ((rt2x00dev->rx->limit * DATA_FRAME_SIZE)
371 			    / 1024) - 3);
372 	rt2x00_set_field32(&reg, USB_DMA_CFG_RX_BULK_EN, 1);
373 	rt2x00_set_field32(&reg, USB_DMA_CFG_TX_BULK_EN, 1);
374 	rt2x00usb_register_write(rt2x00dev, USB_DMA_CFG, reg);
375 
376 	return rt2800_enable_radio(rt2x00dev);
377 }
378 
379 static void rt2800usb_disable_radio(struct rt2x00_dev *rt2x00dev)
380 {
381 	rt2800_disable_radio(rt2x00dev);
382 }
383 
384 static int rt2800usb_set_state(struct rt2x00_dev *rt2x00dev,
385 			       enum dev_state state)
386 {
387 	if (state == STATE_AWAKE)
388 		rt2800_mcu_request(rt2x00dev, MCU_WAKEUP, 0xff, 0, 2);
389 	else
390 		rt2800_mcu_request(rt2x00dev, MCU_SLEEP, 0xff, 0xff, 2);
391 
392 	return 0;
393 }
394 
395 static int rt2800usb_set_device_state(struct rt2x00_dev *rt2x00dev,
396 				      enum dev_state state)
397 {
398 	int retval = 0;
399 
400 	switch (state) {
401 	case STATE_RADIO_ON:
402 		/*
403 		 * Before the radio can be enabled, the device first has
404 		 * to be woken up. After that it needs a bit of time
405 		 * to be fully awake and then the radio can be enabled.
406 		 */
407 		rt2800usb_set_state(rt2x00dev, STATE_AWAKE);
408 		msleep(1);
409 		retval = rt2800usb_enable_radio(rt2x00dev);
410 		break;
411 	case STATE_RADIO_OFF:
412 		/*
413 		 * After the radio has been disabled, the device should
414 		 * be put to sleep for powersaving.
415 		 */
416 		rt2800usb_disable_radio(rt2x00dev);
417 		rt2800usb_set_state(rt2x00dev, STATE_SLEEP);
418 		break;
419 	case STATE_RADIO_IRQ_ON:
420 	case STATE_RADIO_IRQ_OFF:
421 		/* No support, but no error either */
422 		break;
423 	case STATE_DEEP_SLEEP:
424 	case STATE_SLEEP:
425 	case STATE_STANDBY:
426 	case STATE_AWAKE:
427 		retval = rt2800usb_set_state(rt2x00dev, state);
428 		break;
429 	default:
430 		retval = -ENOTSUPP;
431 		break;
432 	}
433 
434 	if (unlikely(retval))
435 		rt2x00_err(rt2x00dev, "Device failed to enter state %d (%d)\n",
436 			   state, retval);
437 
438 	return retval;
439 }
440 
441 /*
442  * Watchdog handlers
443  */
444 static void rt2800usb_watchdog(struct rt2x00_dev *rt2x00dev)
445 {
446 	unsigned int i;
447 	u32 reg;
448 
449 	rt2x00usb_register_read(rt2x00dev, TXRXQ_PCNT, &reg);
450 	if (rt2x00_get_field32(reg, TXRXQ_PCNT_TX0Q)) {
451 		rt2x00_warn(rt2x00dev, "TX HW queue 0 timed out, invoke forced kick\n");
452 
453 		rt2x00usb_register_write(rt2x00dev, PBF_CFG, 0xf40012);
454 
455 		for (i = 0; i < 10; i++) {
456 			udelay(10);
457 			if (!rt2x00_get_field32(reg, TXRXQ_PCNT_TX0Q))
458 				break;
459 		}
460 
461 		rt2x00usb_register_write(rt2x00dev, PBF_CFG, 0xf40006);
462 	}
463 
464 	rt2x00usb_register_read(rt2x00dev, TXRXQ_PCNT, &reg);
465 	if (rt2x00_get_field32(reg, TXRXQ_PCNT_TX1Q)) {
466 		rt2x00_warn(rt2x00dev, "TX HW queue 1 timed out, invoke forced kick\n");
467 
468 		rt2x00usb_register_write(rt2x00dev, PBF_CFG, 0xf4000a);
469 
470 		for (i = 0; i < 10; i++) {
471 			udelay(10);
472 			if (!rt2x00_get_field32(reg, TXRXQ_PCNT_TX1Q))
473 				break;
474 		}
475 
476 		rt2x00usb_register_write(rt2x00dev, PBF_CFG, 0xf40006);
477 	}
478 
479 	rt2x00usb_watchdog(rt2x00dev);
480 }
481 
482 /*
483  * TX descriptor initialization
484  */
485 static __le32 *rt2800usb_get_txwi(struct queue_entry *entry)
486 {
487 	if (entry->queue->qid == QID_BEACON)
488 		return (__le32 *) (entry->skb->data);
489 	else
490 		return (__le32 *) (entry->skb->data + TXINFO_DESC_SIZE);
491 }
492 
493 static void rt2800usb_write_tx_desc(struct queue_entry *entry,
494 				    struct txentry_desc *txdesc)
495 {
496 	struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
497 	__le32 *txi = (__le32 *) entry->skb->data;
498 	u32 word;
499 
500 	/*
501 	 * Initialize TXINFO descriptor
502 	 */
503 	rt2x00_desc_read(txi, 0, &word);
504 
505 	/*
506 	 * The size of TXINFO_W0_USB_DMA_TX_PKT_LEN is
507 	 * TXWI + 802.11 header + L2 pad + payload + pad,
508 	 * so need to decrease size of TXINFO.
509 	 */
510 	rt2x00_set_field32(&word, TXINFO_W0_USB_DMA_TX_PKT_LEN,
511 			   roundup(entry->skb->len, 4) - TXINFO_DESC_SIZE);
512 	rt2x00_set_field32(&word, TXINFO_W0_WIV,
513 			   !test_bit(ENTRY_TXD_ENCRYPT_IV, &txdesc->flags));
514 	rt2x00_set_field32(&word, TXINFO_W0_QSEL, 2);
515 	rt2x00_set_field32(&word, TXINFO_W0_SW_USE_LAST_ROUND, 0);
516 	rt2x00_set_field32(&word, TXINFO_W0_USB_DMA_NEXT_VALID, 0);
517 	rt2x00_set_field32(&word, TXINFO_W0_USB_DMA_TX_BURST,
518 			   test_bit(ENTRY_TXD_BURST, &txdesc->flags));
519 	rt2x00_desc_write(txi, 0, word);
520 
521 	/*
522 	 * Register descriptor details in skb frame descriptor.
523 	 */
524 	skbdesc->flags |= SKBDESC_DESC_IN_SKB;
525 	skbdesc->desc = txi;
526 	skbdesc->desc_len = TXINFO_DESC_SIZE + entry->queue->winfo_size;
527 }
528 
529 /*
530  * TX data initialization
531  */
532 static int rt2800usb_get_tx_data_len(struct queue_entry *entry)
533 {
534 	/*
535 	 * pad(1~3 bytes) is needed after each 802.11 payload.
536 	 * USB end pad(4 bytes) is needed at each USB bulk out packet end.
537 	 * TX frame format is :
538 	 * | TXINFO | TXWI | 802.11 header | L2 pad | payload | pad | USB end pad |
539 	 *                 |<------------- tx_pkt_len ------------->|
540 	 */
541 
542 	return roundup(entry->skb->len, 4) + 4;
543 }
544 
545 /*
546  * TX control handlers
547  */
548 static enum txdone_entry_desc_flags
549 rt2800usb_txdone_entry_check(struct queue_entry *entry, u32 reg)
550 {
551 	__le32 *txwi;
552 	u32 word;
553 	int wcid, ack, pid;
554 	int tx_wcid, tx_ack, tx_pid, is_agg;
555 
556 	/*
557 	 * This frames has returned with an IO error,
558 	 * so the status report is not intended for this
559 	 * frame.
560 	 */
561 	if (test_bit(ENTRY_DATA_IO_FAILED, &entry->flags))
562 		return TXDONE_FAILURE;
563 
564 	wcid	= rt2x00_get_field32(reg, TX_STA_FIFO_WCID);
565 	ack	= rt2x00_get_field32(reg, TX_STA_FIFO_TX_ACK_REQUIRED);
566 	pid	= rt2x00_get_field32(reg, TX_STA_FIFO_PID_TYPE);
567 	is_agg	= rt2x00_get_field32(reg, TX_STA_FIFO_TX_AGGRE);
568 
569 	/*
570 	 * Validate if this TX status report is intended for
571 	 * this entry by comparing the WCID/ACK/PID fields.
572 	 */
573 	txwi = rt2800usb_get_txwi(entry);
574 
575 	rt2x00_desc_read(txwi, 1, &word);
576 	tx_wcid = rt2x00_get_field32(word, TXWI_W1_WIRELESS_CLI_ID);
577 	tx_ack  = rt2x00_get_field32(word, TXWI_W1_ACK);
578 	tx_pid  = rt2x00_get_field32(word, TXWI_W1_PACKETID);
579 
580 	if (wcid != tx_wcid || ack != tx_ack || (!is_agg && pid != tx_pid)) {
581 		rt2x00_dbg(entry->queue->rt2x00dev,
582 			   "TX status report missed for queue %d entry %d\n",
583 			   entry->queue->qid, entry->entry_idx);
584 		return TXDONE_UNKNOWN;
585 	}
586 
587 	return TXDONE_SUCCESS;
588 }
589 
590 static void rt2800usb_txdone(struct rt2x00_dev *rt2x00dev)
591 {
592 	struct data_queue *queue;
593 	struct queue_entry *entry;
594 	u32 reg;
595 	u8 qid;
596 	enum txdone_entry_desc_flags done_status;
597 
598 	while (kfifo_get(&rt2x00dev->txstatus_fifo, &reg)) {
599 		/*
600 		 * TX_STA_FIFO_PID_QUEUE is a 2-bit field, thus qid is
601 		 * guaranteed to be one of the TX QIDs .
602 		 */
603 		qid = rt2x00_get_field32(reg, TX_STA_FIFO_PID_QUEUE);
604 		queue = rt2x00queue_get_tx_queue(rt2x00dev, qid);
605 
606 		if (unlikely(rt2x00queue_empty(queue))) {
607 			rt2x00_dbg(rt2x00dev, "Got TX status for an empty queue %u, dropping\n",
608 				   qid);
609 			break;
610 		}
611 
612 		entry = rt2x00queue_get_entry(queue, Q_INDEX_DONE);
613 
614 		if (unlikely(test_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags) ||
615 			     !test_bit(ENTRY_DATA_STATUS_PENDING, &entry->flags))) {
616 			rt2x00_warn(rt2x00dev, "Data pending for entry %u in queue %u\n",
617 				    entry->entry_idx, qid);
618 			break;
619 		}
620 
621 		done_status = rt2800usb_txdone_entry_check(entry, reg);
622 		if (likely(done_status == TXDONE_SUCCESS))
623 			rt2800_txdone_entry(entry, reg, rt2800usb_get_txwi(entry));
624 		else
625 			rt2x00lib_txdone_noinfo(entry, done_status);
626 	}
627 }
628 
629 static void rt2800usb_txdone_nostatus(struct rt2x00_dev *rt2x00dev)
630 {
631 	struct data_queue *queue;
632 	struct queue_entry *entry;
633 
634 	/*
635 	 * Process any trailing TX status reports for IO failures,
636 	 * we loop until we find the first non-IO error entry. This
637 	 * can either be a frame which is free, is being uploaded,
638 	 * or has completed the upload but didn't have an entry
639 	 * in the TX_STAT_FIFO register yet.
640 	 */
641 	tx_queue_for_each(rt2x00dev, queue) {
642 		while (!rt2x00queue_empty(queue)) {
643 			entry = rt2x00queue_get_entry(queue, Q_INDEX_DONE);
644 
645 			if (test_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags) ||
646 			    !test_bit(ENTRY_DATA_STATUS_PENDING, &entry->flags))
647 				break;
648 
649 			if (test_bit(ENTRY_DATA_IO_FAILED, &entry->flags))
650 				rt2x00lib_txdone_noinfo(entry, TXDONE_FAILURE);
651 			else if (rt2800usb_entry_txstatus_timeout(entry))
652 				rt2x00lib_txdone_noinfo(entry, TXDONE_UNKNOWN);
653 			else
654 				break;
655 		}
656 	}
657 }
658 
659 static void rt2800usb_work_txdone(struct work_struct *work)
660 {
661 	struct rt2x00_dev *rt2x00dev =
662 	    container_of(work, struct rt2x00_dev, txdone_work);
663 
664 	while (!kfifo_is_empty(&rt2x00dev->txstatus_fifo) ||
665 	       rt2800usb_txstatus_timeout(rt2x00dev)) {
666 
667 		rt2800usb_txdone(rt2x00dev);
668 
669 		rt2800usb_txdone_nostatus(rt2x00dev);
670 
671 		/*
672 		 * The hw may delay sending the packet after DMA complete
673 		 * if the medium is busy, thus the TX_STA_FIFO entry is
674 		 * also delayed -> use a timer to retrieve it.
675 		 */
676 		if (rt2800usb_txstatus_pending(rt2x00dev))
677 			rt2800usb_async_read_tx_status(rt2x00dev);
678 	}
679 }
680 
681 /*
682  * RX control handlers
683  */
684 static void rt2800usb_fill_rxdone(struct queue_entry *entry,
685 				  struct rxdone_entry_desc *rxdesc)
686 {
687 	struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
688 	__le32 *rxi = (__le32 *)entry->skb->data;
689 	__le32 *rxd;
690 	u32 word;
691 	int rx_pkt_len;
692 
693 	/*
694 	 * Copy descriptor to the skbdesc->desc buffer, making it safe from
695 	 * moving of frame data in rt2x00usb.
696 	 */
697 	memcpy(skbdesc->desc, rxi, skbdesc->desc_len);
698 
699 	/*
700 	 * RX frame format is :
701 	 * | RXINFO | RXWI | header | L2 pad | payload | pad | RXD | USB pad |
702 	 *          |<------------ rx_pkt_len -------------->|
703 	 */
704 	rt2x00_desc_read(rxi, 0, &word);
705 	rx_pkt_len = rt2x00_get_field32(word, RXINFO_W0_USB_DMA_RX_PKT_LEN);
706 
707 	/*
708 	 * Remove the RXINFO structure from the sbk.
709 	 */
710 	skb_pull(entry->skb, RXINFO_DESC_SIZE);
711 
712 	/*
713 	 * Check for rx_pkt_len validity. Return if invalid, leaving
714 	 * rxdesc->size zeroed out by the upper level.
715 	 */
716 	if (unlikely(rx_pkt_len == 0 ||
717 			rx_pkt_len > entry->queue->data_size)) {
718 		rt2x00_err(entry->queue->rt2x00dev,
719 			   "Bad frame size %d, forcing to 0\n", rx_pkt_len);
720 		return;
721 	}
722 
723 	rxd = (__le32 *)(entry->skb->data + rx_pkt_len);
724 
725 	/*
726 	 * It is now safe to read the descriptor on all architectures.
727 	 */
728 	rt2x00_desc_read(rxd, 0, &word);
729 
730 	if (rt2x00_get_field32(word, RXD_W0_CRC_ERROR))
731 		rxdesc->flags |= RX_FLAG_FAILED_FCS_CRC;
732 
733 	rxdesc->cipher_status = rt2x00_get_field32(word, RXD_W0_CIPHER_ERROR);
734 
735 	if (rt2x00_get_field32(word, RXD_W0_DECRYPTED)) {
736 		/*
737 		 * Hardware has stripped IV/EIV data from 802.11 frame during
738 		 * decryption. Unfortunately the descriptor doesn't contain
739 		 * any fields with the EIV/IV data either, so they can't
740 		 * be restored by rt2x00lib.
741 		 */
742 		rxdesc->flags |= RX_FLAG_IV_STRIPPED;
743 
744 		/*
745 		 * The hardware has already checked the Michael Mic and has
746 		 * stripped it from the frame. Signal this to mac80211.
747 		 */
748 		rxdesc->flags |= RX_FLAG_MMIC_STRIPPED;
749 
750 		if (rxdesc->cipher_status == RX_CRYPTO_SUCCESS)
751 			rxdesc->flags |= RX_FLAG_DECRYPTED;
752 		else if (rxdesc->cipher_status == RX_CRYPTO_FAIL_MIC)
753 			rxdesc->flags |= RX_FLAG_MMIC_ERROR;
754 	}
755 
756 	if (rt2x00_get_field32(word, RXD_W0_MY_BSS))
757 		rxdesc->dev_flags |= RXDONE_MY_BSS;
758 
759 	if (rt2x00_get_field32(word, RXD_W0_L2PAD))
760 		rxdesc->dev_flags |= RXDONE_L2PAD;
761 
762 	/*
763 	 * Remove RXD descriptor from end of buffer.
764 	 */
765 	skb_trim(entry->skb, rx_pkt_len);
766 
767 	/*
768 	 * Process the RXWI structure.
769 	 */
770 	rt2800_process_rxwi(entry, rxdesc);
771 }
772 
773 /*
774  * Device probe functions.
775  */
776 static int rt2800usb_efuse_detect(struct rt2x00_dev *rt2x00dev)
777 {
778 	int retval;
779 
780 	retval = rt2800usb_autorun_detect(rt2x00dev);
781 	if (retval < 0)
782 		return retval;
783 	if (retval)
784 		return 1;
785 	return rt2800_efuse_detect(rt2x00dev);
786 }
787 
788 static int rt2800usb_read_eeprom(struct rt2x00_dev *rt2x00dev)
789 {
790 	int retval;
791 
792 	retval = rt2800usb_efuse_detect(rt2x00dev);
793 	if (retval < 0)
794 		return retval;
795 	if (retval)
796 		retval = rt2800_read_eeprom_efuse(rt2x00dev);
797 	else
798 		retval = rt2x00usb_eeprom_read(rt2x00dev, rt2x00dev->eeprom,
799 					       EEPROM_SIZE);
800 
801 	return retval;
802 }
803 
804 static int rt2800usb_probe_hw(struct rt2x00_dev *rt2x00dev)
805 {
806 	int retval;
807 
808 	retval = rt2800_probe_hw(rt2x00dev);
809 	if (retval)
810 		return retval;
811 
812 	/*
813 	 * Set txstatus timer function.
814 	 */
815 	rt2x00dev->txstatus_timer.function = rt2800usb_tx_sta_fifo_timeout;
816 
817 	/*
818 	 * Overwrite TX done handler
819 	 */
820 	INIT_WORK(&rt2x00dev->txdone_work, rt2800usb_work_txdone);
821 
822 	return 0;
823 }
824 
825 static const struct ieee80211_ops rt2800usb_mac80211_ops = {
826 	.tx			= rt2x00mac_tx,
827 	.start			= rt2x00mac_start,
828 	.stop			= rt2x00mac_stop,
829 	.add_interface		= rt2x00mac_add_interface,
830 	.remove_interface	= rt2x00mac_remove_interface,
831 	.config			= rt2x00mac_config,
832 	.configure_filter	= rt2x00mac_configure_filter,
833 	.set_tim		= rt2x00mac_set_tim,
834 	.set_key		= rt2x00mac_set_key,
835 	.sw_scan_start		= rt2x00mac_sw_scan_start,
836 	.sw_scan_complete	= rt2x00mac_sw_scan_complete,
837 	.get_stats		= rt2x00mac_get_stats,
838 	.get_key_seq		= rt2800_get_key_seq,
839 	.set_rts_threshold	= rt2800_set_rts_threshold,
840 	.sta_add		= rt2x00mac_sta_add,
841 	.sta_remove		= rt2x00mac_sta_remove,
842 	.bss_info_changed	= rt2x00mac_bss_info_changed,
843 	.conf_tx		= rt2800_conf_tx,
844 	.get_tsf		= rt2800_get_tsf,
845 	.rfkill_poll		= rt2x00mac_rfkill_poll,
846 	.ampdu_action		= rt2800_ampdu_action,
847 	.flush			= rt2x00mac_flush,
848 	.get_survey		= rt2800_get_survey,
849 	.get_ringparam		= rt2x00mac_get_ringparam,
850 	.tx_frames_pending	= rt2x00mac_tx_frames_pending,
851 };
852 
853 static const struct rt2800_ops rt2800usb_rt2800_ops = {
854 	.register_read		= rt2x00usb_register_read,
855 	.register_read_lock	= rt2x00usb_register_read_lock,
856 	.register_write		= rt2x00usb_register_write,
857 	.register_write_lock	= rt2x00usb_register_write_lock,
858 	.register_multiread	= rt2x00usb_register_multiread,
859 	.register_multiwrite	= rt2x00usb_register_multiwrite,
860 	.regbusy_read		= rt2x00usb_regbusy_read,
861 	.read_eeprom		= rt2800usb_read_eeprom,
862 	.hwcrypt_disabled	= rt2800usb_hwcrypt_disabled,
863 	.drv_write_firmware	= rt2800usb_write_firmware,
864 	.drv_init_registers	= rt2800usb_init_registers,
865 	.drv_get_txwi		= rt2800usb_get_txwi,
866 };
867 
868 static const struct rt2x00lib_ops rt2800usb_rt2x00_ops = {
869 	.probe_hw		= rt2800usb_probe_hw,
870 	.get_firmware_name	= rt2800usb_get_firmware_name,
871 	.check_firmware		= rt2800_check_firmware,
872 	.load_firmware		= rt2800_load_firmware,
873 	.initialize		= rt2x00usb_initialize,
874 	.uninitialize		= rt2x00usb_uninitialize,
875 	.clear_entry		= rt2x00usb_clear_entry,
876 	.set_device_state	= rt2800usb_set_device_state,
877 	.rfkill_poll		= rt2800_rfkill_poll,
878 	.link_stats		= rt2800_link_stats,
879 	.reset_tuner		= rt2800_reset_tuner,
880 	.link_tuner		= rt2800_link_tuner,
881 	.gain_calibration	= rt2800_gain_calibration,
882 	.vco_calibration	= rt2800_vco_calibration,
883 	.watchdog		= rt2800usb_watchdog,
884 	.start_queue		= rt2800usb_start_queue,
885 	.kick_queue		= rt2x00usb_kick_queue,
886 	.stop_queue		= rt2800usb_stop_queue,
887 	.flush_queue		= rt2x00usb_flush_queue,
888 	.tx_dma_done		= rt2800usb_tx_dma_done,
889 	.write_tx_desc		= rt2800usb_write_tx_desc,
890 	.write_tx_data		= rt2800_write_tx_data,
891 	.write_beacon		= rt2800_write_beacon,
892 	.clear_beacon		= rt2800_clear_beacon,
893 	.get_tx_data_len	= rt2800usb_get_tx_data_len,
894 	.fill_rxdone		= rt2800usb_fill_rxdone,
895 	.config_shared_key	= rt2800_config_shared_key,
896 	.config_pairwise_key	= rt2800_config_pairwise_key,
897 	.config_filter		= rt2800_config_filter,
898 	.config_intf		= rt2800_config_intf,
899 	.config_erp		= rt2800_config_erp,
900 	.config_ant		= rt2800_config_ant,
901 	.config			= rt2800_config,
902 	.sta_add		= rt2800_sta_add,
903 	.sta_remove		= rt2800_sta_remove,
904 };
905 
906 static void rt2800usb_queue_init(struct data_queue *queue)
907 {
908 	struct rt2x00_dev *rt2x00dev = queue->rt2x00dev;
909 	unsigned short txwi_size, rxwi_size;
910 
911 	rt2800_get_txwi_rxwi_size(rt2x00dev, &txwi_size, &rxwi_size);
912 
913 	switch (queue->qid) {
914 	case QID_RX:
915 		queue->limit = 128;
916 		queue->data_size = AGGREGATION_SIZE;
917 		queue->desc_size = RXINFO_DESC_SIZE;
918 		queue->winfo_size = rxwi_size;
919 		queue->priv_size = sizeof(struct queue_entry_priv_usb);
920 		break;
921 
922 	case QID_AC_VO:
923 	case QID_AC_VI:
924 	case QID_AC_BE:
925 	case QID_AC_BK:
926 		queue->limit = 16;
927 		queue->data_size = AGGREGATION_SIZE;
928 		queue->desc_size = TXINFO_DESC_SIZE;
929 		queue->winfo_size = txwi_size;
930 		queue->priv_size = sizeof(struct queue_entry_priv_usb);
931 		break;
932 
933 	case QID_BEACON:
934 		queue->limit = 8;
935 		queue->data_size = MGMT_FRAME_SIZE;
936 		queue->desc_size = TXINFO_DESC_SIZE;
937 		queue->winfo_size = txwi_size;
938 		queue->priv_size = sizeof(struct queue_entry_priv_usb);
939 		break;
940 
941 	case QID_ATIM:
942 		/* fallthrough */
943 	default:
944 		BUG();
945 		break;
946 	}
947 }
948 
949 static const struct rt2x00_ops rt2800usb_ops = {
950 	.name			= KBUILD_MODNAME,
951 	.drv_data_size		= sizeof(struct rt2800_drv_data),
952 	.max_ap_intf		= 8,
953 	.eeprom_size		= EEPROM_SIZE,
954 	.rf_size		= RF_SIZE,
955 	.tx_queues		= NUM_TX_QUEUES,
956 	.queue_init		= rt2800usb_queue_init,
957 	.lib			= &rt2800usb_rt2x00_ops,
958 	.drv			= &rt2800usb_rt2800_ops,
959 	.hw			= &rt2800usb_mac80211_ops,
960 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
961 	.debugfs		= &rt2800_rt2x00debug,
962 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
963 };
964 
965 /*
966  * rt2800usb module information.
967  */
968 static struct usb_device_id rt2800usb_device_table[] = {
969 	/* Abocom */
970 	{ USB_DEVICE(0x07b8, 0x2870) },
971 	{ USB_DEVICE(0x07b8, 0x2770) },
972 	{ USB_DEVICE(0x07b8, 0x3070) },
973 	{ USB_DEVICE(0x07b8, 0x3071) },
974 	{ USB_DEVICE(0x07b8, 0x3072) },
975 	{ USB_DEVICE(0x1482, 0x3c09) },
976 	/* AirTies */
977 	{ USB_DEVICE(0x1eda, 0x2012) },
978 	{ USB_DEVICE(0x1eda, 0x2210) },
979 	{ USB_DEVICE(0x1eda, 0x2310) },
980 	/* Allwin */
981 	{ USB_DEVICE(0x8516, 0x2070) },
982 	{ USB_DEVICE(0x8516, 0x2770) },
983 	{ USB_DEVICE(0x8516, 0x2870) },
984 	{ USB_DEVICE(0x8516, 0x3070) },
985 	{ USB_DEVICE(0x8516, 0x3071) },
986 	{ USB_DEVICE(0x8516, 0x3072) },
987 	/* Alpha Networks */
988 	{ USB_DEVICE(0x14b2, 0x3c06) },
989 	{ USB_DEVICE(0x14b2, 0x3c07) },
990 	{ USB_DEVICE(0x14b2, 0x3c09) },
991 	{ USB_DEVICE(0x14b2, 0x3c12) },
992 	{ USB_DEVICE(0x14b2, 0x3c23) },
993 	{ USB_DEVICE(0x14b2, 0x3c25) },
994 	{ USB_DEVICE(0x14b2, 0x3c27) },
995 	{ USB_DEVICE(0x14b2, 0x3c28) },
996 	{ USB_DEVICE(0x14b2, 0x3c2c) },
997 	/* Amit */
998 	{ USB_DEVICE(0x15c5, 0x0008) },
999 	/* Askey */
1000 	{ USB_DEVICE(0x1690, 0x0740) },
1001 	/* ASUS */
1002 	{ USB_DEVICE(0x0b05, 0x1731) },
1003 	{ USB_DEVICE(0x0b05, 0x1732) },
1004 	{ USB_DEVICE(0x0b05, 0x1742) },
1005 	{ USB_DEVICE(0x0b05, 0x1784) },
1006 	{ USB_DEVICE(0x1761, 0x0b05) },
1007 	/* AzureWave */
1008 	{ USB_DEVICE(0x13d3, 0x3247) },
1009 	{ USB_DEVICE(0x13d3, 0x3273) },
1010 	{ USB_DEVICE(0x13d3, 0x3305) },
1011 	{ USB_DEVICE(0x13d3, 0x3307) },
1012 	{ USB_DEVICE(0x13d3, 0x3321) },
1013 	/* Belkin */
1014 	{ USB_DEVICE(0x050d, 0x8053) },
1015 	{ USB_DEVICE(0x050d, 0x805c) },
1016 	{ USB_DEVICE(0x050d, 0x815c) },
1017 	{ USB_DEVICE(0x050d, 0x825a) },
1018 	{ USB_DEVICE(0x050d, 0x825b) },
1019 	{ USB_DEVICE(0x050d, 0x935a) },
1020 	{ USB_DEVICE(0x050d, 0x935b) },
1021 	/* Buffalo */
1022 	{ USB_DEVICE(0x0411, 0x00e8) },
1023 	{ USB_DEVICE(0x0411, 0x0158) },
1024 	{ USB_DEVICE(0x0411, 0x015d) },
1025 	{ USB_DEVICE(0x0411, 0x016f) },
1026 	{ USB_DEVICE(0x0411, 0x01a2) },
1027 	{ USB_DEVICE(0x0411, 0x01ee) },
1028 	{ USB_DEVICE(0x0411, 0x01a8) },
1029 	{ USB_DEVICE(0x0411, 0x01fd) },
1030 	/* Corega */
1031 	{ USB_DEVICE(0x07aa, 0x002f) },
1032 	{ USB_DEVICE(0x07aa, 0x003c) },
1033 	{ USB_DEVICE(0x07aa, 0x003f) },
1034 	{ USB_DEVICE(0x18c5, 0x0012) },
1035 	/* D-Link */
1036 	{ USB_DEVICE(0x07d1, 0x3c09) },
1037 	{ USB_DEVICE(0x07d1, 0x3c0a) },
1038 	{ USB_DEVICE(0x07d1, 0x3c0d) },
1039 	{ USB_DEVICE(0x07d1, 0x3c0e) },
1040 	{ USB_DEVICE(0x07d1, 0x3c0f) },
1041 	{ USB_DEVICE(0x07d1, 0x3c11) },
1042 	{ USB_DEVICE(0x07d1, 0x3c13) },
1043 	{ USB_DEVICE(0x07d1, 0x3c15) },
1044 	{ USB_DEVICE(0x07d1, 0x3c16) },
1045 	{ USB_DEVICE(0x07d1, 0x3c17) },
1046 	{ USB_DEVICE(0x2001, 0x3317) },
1047 	{ USB_DEVICE(0x2001, 0x3c1b) },
1048 	{ USB_DEVICE(0x2001, 0x3c25) },
1049 	/* Draytek */
1050 	{ USB_DEVICE(0x07fa, 0x7712) },
1051 	/* DVICO */
1052 	{ USB_DEVICE(0x0fe9, 0xb307) },
1053 	/* Edimax */
1054 	{ USB_DEVICE(0x7392, 0x4085) },
1055 	{ USB_DEVICE(0x7392, 0x7711) },
1056 	{ USB_DEVICE(0x7392, 0x7717) },
1057 	{ USB_DEVICE(0x7392, 0x7718) },
1058 	{ USB_DEVICE(0x7392, 0x7722) },
1059 	/* Encore */
1060 	{ USB_DEVICE(0x203d, 0x1480) },
1061 	{ USB_DEVICE(0x203d, 0x14a9) },
1062 	/* EnGenius */
1063 	{ USB_DEVICE(0x1740, 0x9701) },
1064 	{ USB_DEVICE(0x1740, 0x9702) },
1065 	{ USB_DEVICE(0x1740, 0x9703) },
1066 	{ USB_DEVICE(0x1740, 0x9705) },
1067 	{ USB_DEVICE(0x1740, 0x9706) },
1068 	{ USB_DEVICE(0x1740, 0x9707) },
1069 	{ USB_DEVICE(0x1740, 0x9708) },
1070 	{ USB_DEVICE(0x1740, 0x9709) },
1071 	/* Gemtek */
1072 	{ USB_DEVICE(0x15a9, 0x0012) },
1073 	/* Gigabyte */
1074 	{ USB_DEVICE(0x1044, 0x800b) },
1075 	{ USB_DEVICE(0x1044, 0x800d) },
1076 	/* Hawking */
1077 	{ USB_DEVICE(0x0e66, 0x0001) },
1078 	{ USB_DEVICE(0x0e66, 0x0003) },
1079 	{ USB_DEVICE(0x0e66, 0x0009) },
1080 	{ USB_DEVICE(0x0e66, 0x000b) },
1081 	{ USB_DEVICE(0x0e66, 0x0013) },
1082 	{ USB_DEVICE(0x0e66, 0x0017) },
1083 	{ USB_DEVICE(0x0e66, 0x0018) },
1084 	/* I-O DATA */
1085 	{ USB_DEVICE(0x04bb, 0x0945) },
1086 	{ USB_DEVICE(0x04bb, 0x0947) },
1087 	{ USB_DEVICE(0x04bb, 0x0948) },
1088 	/* Linksys */
1089 	{ USB_DEVICE(0x13b1, 0x0031) },
1090 	{ USB_DEVICE(0x1737, 0x0070) },
1091 	{ USB_DEVICE(0x1737, 0x0071) },
1092 	{ USB_DEVICE(0x1737, 0x0077) },
1093 	{ USB_DEVICE(0x1737, 0x0078) },
1094 	/* Logitec */
1095 	{ USB_DEVICE(0x0789, 0x0162) },
1096 	{ USB_DEVICE(0x0789, 0x0163) },
1097 	{ USB_DEVICE(0x0789, 0x0164) },
1098 	{ USB_DEVICE(0x0789, 0x0166) },
1099 	/* Motorola */
1100 	{ USB_DEVICE(0x100d, 0x9031) },
1101 	/* MSI */
1102 	{ USB_DEVICE(0x0db0, 0x3820) },
1103 	{ USB_DEVICE(0x0db0, 0x3821) },
1104 	{ USB_DEVICE(0x0db0, 0x3822) },
1105 	{ USB_DEVICE(0x0db0, 0x3870) },
1106 	{ USB_DEVICE(0x0db0, 0x3871) },
1107 	{ USB_DEVICE(0x0db0, 0x6899) },
1108 	{ USB_DEVICE(0x0db0, 0x821a) },
1109 	{ USB_DEVICE(0x0db0, 0x822a) },
1110 	{ USB_DEVICE(0x0db0, 0x822b) },
1111 	{ USB_DEVICE(0x0db0, 0x822c) },
1112 	{ USB_DEVICE(0x0db0, 0x870a) },
1113 	{ USB_DEVICE(0x0db0, 0x871a) },
1114 	{ USB_DEVICE(0x0db0, 0x871b) },
1115 	{ USB_DEVICE(0x0db0, 0x871c) },
1116 	{ USB_DEVICE(0x0db0, 0x899a) },
1117 	/* Ovislink */
1118 	{ USB_DEVICE(0x1b75, 0x3070) },
1119 	{ USB_DEVICE(0x1b75, 0x3071) },
1120 	{ USB_DEVICE(0x1b75, 0x3072) },
1121 	{ USB_DEVICE(0x1b75, 0xa200) },
1122 	/* Para */
1123 	{ USB_DEVICE(0x20b8, 0x8888) },
1124 	/* Pegatron */
1125 	{ USB_DEVICE(0x1d4d, 0x0002) },
1126 	{ USB_DEVICE(0x1d4d, 0x000c) },
1127 	{ USB_DEVICE(0x1d4d, 0x000e) },
1128 	{ USB_DEVICE(0x1d4d, 0x0011) },
1129 	/* Philips */
1130 	{ USB_DEVICE(0x0471, 0x200f) },
1131 	/* Planex */
1132 	{ USB_DEVICE(0x2019, 0x5201) },
1133 	{ USB_DEVICE(0x2019, 0xab25) },
1134 	{ USB_DEVICE(0x2019, 0xed06) },
1135 	/* Quanta */
1136 	{ USB_DEVICE(0x1a32, 0x0304) },
1137 	/* Ralink */
1138 	{ USB_DEVICE(0x148f, 0x2070) },
1139 	{ USB_DEVICE(0x148f, 0x2770) },
1140 	{ USB_DEVICE(0x148f, 0x2870) },
1141 	{ USB_DEVICE(0x148f, 0x3070) },
1142 	{ USB_DEVICE(0x148f, 0x3071) },
1143 	{ USB_DEVICE(0x148f, 0x3072) },
1144 	/* Samsung */
1145 	{ USB_DEVICE(0x04e8, 0x2018) },
1146 	/* Siemens */
1147 	{ USB_DEVICE(0x129b, 0x1828) },
1148 	/* Sitecom */
1149 	{ USB_DEVICE(0x0df6, 0x0017) },
1150 	{ USB_DEVICE(0x0df6, 0x002b) },
1151 	{ USB_DEVICE(0x0df6, 0x002c) },
1152 	{ USB_DEVICE(0x0df6, 0x002d) },
1153 	{ USB_DEVICE(0x0df6, 0x0039) },
1154 	{ USB_DEVICE(0x0df6, 0x003b) },
1155 	{ USB_DEVICE(0x0df6, 0x003d) },
1156 	{ USB_DEVICE(0x0df6, 0x003e) },
1157 	{ USB_DEVICE(0x0df6, 0x003f) },
1158 	{ USB_DEVICE(0x0df6, 0x0040) },
1159 	{ USB_DEVICE(0x0df6, 0x0042) },
1160 	{ USB_DEVICE(0x0df6, 0x0047) },
1161 	{ USB_DEVICE(0x0df6, 0x0048) },
1162 	{ USB_DEVICE(0x0df6, 0x0051) },
1163 	{ USB_DEVICE(0x0df6, 0x005f) },
1164 	{ USB_DEVICE(0x0df6, 0x0060) },
1165 	/* SMC */
1166 	{ USB_DEVICE(0x083a, 0x6618) },
1167 	{ USB_DEVICE(0x083a, 0x7511) },
1168 	{ USB_DEVICE(0x083a, 0x7512) },
1169 	{ USB_DEVICE(0x083a, 0x7522) },
1170 	{ USB_DEVICE(0x083a, 0x8522) },
1171 	{ USB_DEVICE(0x083a, 0xa618) },
1172 	{ USB_DEVICE(0x083a, 0xa701) },
1173 	{ USB_DEVICE(0x083a, 0xa702) },
1174 	{ USB_DEVICE(0x083a, 0xa703) },
1175 	{ USB_DEVICE(0x083a, 0xb522) },
1176 	/* Sparklan */
1177 	{ USB_DEVICE(0x15a9, 0x0006) },
1178 	/* Sweex */
1179 	{ USB_DEVICE(0x177f, 0x0153) },
1180 	{ USB_DEVICE(0x177f, 0x0164) },
1181 	{ USB_DEVICE(0x177f, 0x0302) },
1182 	{ USB_DEVICE(0x177f, 0x0313) },
1183 	{ USB_DEVICE(0x177f, 0x0323) },
1184 	{ USB_DEVICE(0x177f, 0x0324) },
1185 	/* U-Media */
1186 	{ USB_DEVICE(0x157e, 0x300e) },
1187 	{ USB_DEVICE(0x157e, 0x3013) },
1188 	/* ZCOM */
1189 	{ USB_DEVICE(0x0cde, 0x0022) },
1190 	{ USB_DEVICE(0x0cde, 0x0025) },
1191 	/* Zinwell */
1192 	{ USB_DEVICE(0x5a57, 0x0280) },
1193 	{ USB_DEVICE(0x5a57, 0x0282) },
1194 	{ USB_DEVICE(0x5a57, 0x0283) },
1195 	{ USB_DEVICE(0x5a57, 0x5257) },
1196 	/* Zyxel */
1197 	{ USB_DEVICE(0x0586, 0x3416) },
1198 	{ USB_DEVICE(0x0586, 0x3418) },
1199 	{ USB_DEVICE(0x0586, 0x341a) },
1200 	{ USB_DEVICE(0x0586, 0x341e) },
1201 	{ USB_DEVICE(0x0586, 0x343e) },
1202 #ifdef CONFIG_RT2800USB_RT33XX
1203 	/* Belkin */
1204 	{ USB_DEVICE(0x050d, 0x945b) },
1205 	/* D-Link */
1206 	{ USB_DEVICE(0x2001, 0x3c17) },
1207 	/* Panasonic */
1208 	{ USB_DEVICE(0x083a, 0xb511) },
1209 	/* Philips */
1210 	{ USB_DEVICE(0x0471, 0x20dd) },
1211 	/* Ralink */
1212 	{ USB_DEVICE(0x148f, 0x3370) },
1213 	{ USB_DEVICE(0x148f, 0x8070) },
1214 	/* Sitecom */
1215 	{ USB_DEVICE(0x0df6, 0x0050) },
1216 	/* Sweex */
1217 	{ USB_DEVICE(0x177f, 0x0163) },
1218 	{ USB_DEVICE(0x177f, 0x0165) },
1219 #endif
1220 #ifdef CONFIG_RT2800USB_RT35XX
1221 	/* Allwin */
1222 	{ USB_DEVICE(0x8516, 0x3572) },
1223 	/* Askey */
1224 	{ USB_DEVICE(0x1690, 0x0744) },
1225 	{ USB_DEVICE(0x1690, 0x0761) },
1226 	{ USB_DEVICE(0x1690, 0x0764) },
1227 	/* ASUS */
1228 	{ USB_DEVICE(0x0b05, 0x179d) },
1229 	/* Cisco */
1230 	{ USB_DEVICE(0x167b, 0x4001) },
1231 	/* EnGenius */
1232 	{ USB_DEVICE(0x1740, 0x9801) },
1233 	/* I-O DATA */
1234 	{ USB_DEVICE(0x04bb, 0x0944) },
1235 	/* Linksys */
1236 	{ USB_DEVICE(0x13b1, 0x002f) },
1237 	{ USB_DEVICE(0x1737, 0x0079) },
1238 	/* Logitec */
1239 	{ USB_DEVICE(0x0789, 0x0170) },
1240 	/* Ralink */
1241 	{ USB_DEVICE(0x148f, 0x3572) },
1242 	/* Sitecom */
1243 	{ USB_DEVICE(0x0df6, 0x0041) },
1244 	{ USB_DEVICE(0x0df6, 0x0062) },
1245 	{ USB_DEVICE(0x0df6, 0x0065) },
1246 	{ USB_DEVICE(0x0df6, 0x0066) },
1247 	{ USB_DEVICE(0x0df6, 0x0068) },
1248 	/* Toshiba */
1249 	{ USB_DEVICE(0x0930, 0x0a07) },
1250 	/* Zinwell */
1251 	{ USB_DEVICE(0x5a57, 0x0284) },
1252 #endif
1253 #ifdef CONFIG_RT2800USB_RT3573
1254 	/* AirLive */
1255 	{ USB_DEVICE(0x1b75, 0x7733) },
1256 	/* ASUS */
1257 	{ USB_DEVICE(0x0b05, 0x17bc) },
1258 	{ USB_DEVICE(0x0b05, 0x17ad) },
1259 	/* Belkin */
1260 	{ USB_DEVICE(0x050d, 0x1103) },
1261 	/* Cameo */
1262 	{ USB_DEVICE(0x148f, 0xf301) },
1263 	/* D-Link */
1264 	{ USB_DEVICE(0x2001, 0x3c1f) },
1265 	/* Edimax */
1266 	{ USB_DEVICE(0x7392, 0x7733) },
1267 	/* Hawking */
1268 	{ USB_DEVICE(0x0e66, 0x0020) },
1269 	{ USB_DEVICE(0x0e66, 0x0021) },
1270 	/* I-O DATA */
1271 	{ USB_DEVICE(0x04bb, 0x094e) },
1272 	/* Linksys */
1273 	{ USB_DEVICE(0x13b1, 0x003b) },
1274 	/* Logitec */
1275 	{ USB_DEVICE(0x0789, 0x016b) },
1276 	/* NETGEAR */
1277 	{ USB_DEVICE(0x0846, 0x9012) },
1278 	{ USB_DEVICE(0x0846, 0x9013) },
1279 	{ USB_DEVICE(0x0846, 0x9019) },
1280 	/* Planex */
1281 	{ USB_DEVICE(0x2019, 0xed19) },
1282 	/* Ralink */
1283 	{ USB_DEVICE(0x148f, 0x3573) },
1284 	/* Sitecom */
1285 	{ USB_DEVICE(0x0df6, 0x0067) },
1286 	{ USB_DEVICE(0x0df6, 0x006a) },
1287 	{ USB_DEVICE(0x0df6, 0x006e) },
1288 	/* ZyXEL */
1289 	{ USB_DEVICE(0x0586, 0x3421) },
1290 #endif
1291 #ifdef CONFIG_RT2800USB_RT53XX
1292 	/* Arcadyan */
1293 	{ USB_DEVICE(0x043e, 0x7a12) },
1294 	{ USB_DEVICE(0x043e, 0x7a32) },
1295 	/* ASUS */
1296 	{ USB_DEVICE(0x0b05, 0x17e8) },
1297 	/* Azurewave */
1298 	{ USB_DEVICE(0x13d3, 0x3329) },
1299 	{ USB_DEVICE(0x13d3, 0x3365) },
1300 	/* D-Link */
1301 	{ USB_DEVICE(0x2001, 0x3c15) },
1302 	{ USB_DEVICE(0x2001, 0x3c19) },
1303 	{ USB_DEVICE(0x2001, 0x3c1c) },
1304 	{ USB_DEVICE(0x2001, 0x3c1d) },
1305 	{ USB_DEVICE(0x2001, 0x3c1e) },
1306 	{ USB_DEVICE(0x2001, 0x3c20) },
1307 	{ USB_DEVICE(0x2001, 0x3c22) },
1308 	{ USB_DEVICE(0x2001, 0x3c23) },
1309 	/* LG innotek */
1310 	{ USB_DEVICE(0x043e, 0x7a22) },
1311 	{ USB_DEVICE(0x043e, 0x7a42) },
1312 	/* Panasonic */
1313 	{ USB_DEVICE(0x04da, 0x1801) },
1314 	{ USB_DEVICE(0x04da, 0x1800) },
1315 	{ USB_DEVICE(0x04da, 0x23f6) },
1316 	/* Philips */
1317 	{ USB_DEVICE(0x0471, 0x2104) },
1318 	{ USB_DEVICE(0x0471, 0x2126) },
1319 	{ USB_DEVICE(0x0471, 0x2180) },
1320 	{ USB_DEVICE(0x0471, 0x2181) },
1321 	{ USB_DEVICE(0x0471, 0x2182) },
1322 	/* Ralink */
1323 	{ USB_DEVICE(0x148f, 0x5370) },
1324 	{ USB_DEVICE(0x148f, 0x5372) },
1325 #endif
1326 #ifdef CONFIG_RT2800USB_RT55XX
1327 	/* Arcadyan */
1328 	{ USB_DEVICE(0x043e, 0x7a32) },
1329 	/* AVM GmbH */
1330 	{ USB_DEVICE(0x057c, 0x8501) },
1331 	/* Buffalo */
1332 	{ USB_DEVICE(0x0411, 0x0241) },
1333 	{ USB_DEVICE(0x0411, 0x0253) },
1334 	/* D-Link */
1335 	{ USB_DEVICE(0x2001, 0x3c1a) },
1336 	{ USB_DEVICE(0x2001, 0x3c21) },
1337 	/* Proware */
1338 	{ USB_DEVICE(0x043e, 0x7a13) },
1339 	/* Ralink */
1340 	{ USB_DEVICE(0x148f, 0x5572) },
1341 	/* TRENDnet */
1342 	{ USB_DEVICE(0x20f4, 0x724a) },
1343 #endif
1344 #ifdef CONFIG_RT2800USB_UNKNOWN
1345 	/*
1346 	 * Unclear what kind of devices these are (they aren't supported by the
1347 	 * vendor linux driver).
1348 	 */
1349 	/* Abocom */
1350 	{ USB_DEVICE(0x07b8, 0x3073) },
1351 	{ USB_DEVICE(0x07b8, 0x3074) },
1352 	/* Alpha Networks */
1353 	{ USB_DEVICE(0x14b2, 0x3c08) },
1354 	{ USB_DEVICE(0x14b2, 0x3c11) },
1355 	/* Amigo */
1356 	{ USB_DEVICE(0x0e0b, 0x9031) },
1357 	{ USB_DEVICE(0x0e0b, 0x9041) },
1358 	/* ASUS */
1359 	{ USB_DEVICE(0x0b05, 0x166a) },
1360 	{ USB_DEVICE(0x0b05, 0x1760) },
1361 	{ USB_DEVICE(0x0b05, 0x1761) },
1362 	{ USB_DEVICE(0x0b05, 0x1790) },
1363 	{ USB_DEVICE(0x0b05, 0x17a7) },
1364 	/* AzureWave */
1365 	{ USB_DEVICE(0x13d3, 0x3262) },
1366 	{ USB_DEVICE(0x13d3, 0x3284) },
1367 	{ USB_DEVICE(0x13d3, 0x3322) },
1368 	{ USB_DEVICE(0x13d3, 0x3340) },
1369 	{ USB_DEVICE(0x13d3, 0x3399) },
1370 	{ USB_DEVICE(0x13d3, 0x3400) },
1371 	{ USB_DEVICE(0x13d3, 0x3401) },
1372 	/* Belkin */
1373 	{ USB_DEVICE(0x050d, 0x1003) },
1374 	/* Buffalo */
1375 	{ USB_DEVICE(0x0411, 0x012e) },
1376 	{ USB_DEVICE(0x0411, 0x0148) },
1377 	{ USB_DEVICE(0x0411, 0x0150) },
1378 	/* Corega */
1379 	{ USB_DEVICE(0x07aa, 0x0041) },
1380 	{ USB_DEVICE(0x07aa, 0x0042) },
1381 	{ USB_DEVICE(0x18c5, 0x0008) },
1382 	/* D-Link */
1383 	{ USB_DEVICE(0x07d1, 0x3c0b) },
1384 	/* Encore */
1385 	{ USB_DEVICE(0x203d, 0x14a1) },
1386 	/* EnGenius */
1387 	{ USB_DEVICE(0x1740, 0x0600) },
1388 	{ USB_DEVICE(0x1740, 0x0602) },
1389 	/* Gemtek */
1390 	{ USB_DEVICE(0x15a9, 0x0010) },
1391 	/* Gigabyte */
1392 	{ USB_DEVICE(0x1044, 0x800c) },
1393 	/* Hercules */
1394 	{ USB_DEVICE(0x06f8, 0xe036) },
1395 	/* Huawei */
1396 	{ USB_DEVICE(0x148f, 0xf101) },
1397 	/* I-O DATA */
1398 	{ USB_DEVICE(0x04bb, 0x094b) },
1399 	/* LevelOne */
1400 	{ USB_DEVICE(0x1740, 0x0605) },
1401 	{ USB_DEVICE(0x1740, 0x0615) },
1402 	/* Logitec */
1403 	{ USB_DEVICE(0x0789, 0x0168) },
1404 	{ USB_DEVICE(0x0789, 0x0169) },
1405 	/* Motorola */
1406 	{ USB_DEVICE(0x100d, 0x9032) },
1407 	/* Pegatron */
1408 	{ USB_DEVICE(0x05a6, 0x0101) },
1409 	{ USB_DEVICE(0x1d4d, 0x0010) },
1410 	/* Planex */
1411 	{ USB_DEVICE(0x2019, 0xab24) },
1412 	{ USB_DEVICE(0x2019, 0xab29) },
1413 	/* Qcom */
1414 	{ USB_DEVICE(0x18e8, 0x6259) },
1415 	/* RadioShack */
1416 	{ USB_DEVICE(0x08b9, 0x1197) },
1417 	/* Sitecom */
1418 	{ USB_DEVICE(0x0df6, 0x003c) },
1419 	{ USB_DEVICE(0x0df6, 0x004a) },
1420 	{ USB_DEVICE(0x0df6, 0x004d) },
1421 	{ USB_DEVICE(0x0df6, 0x0053) },
1422 	{ USB_DEVICE(0x0df6, 0x0069) },
1423 	{ USB_DEVICE(0x0df6, 0x006f) },
1424 	{ USB_DEVICE(0x0df6, 0x0078) },
1425 	/* SMC */
1426 	{ USB_DEVICE(0x083a, 0xa512) },
1427 	{ USB_DEVICE(0x083a, 0xc522) },
1428 	{ USB_DEVICE(0x083a, 0xd522) },
1429 	{ USB_DEVICE(0x083a, 0xf511) },
1430 	/* Sweex */
1431 	{ USB_DEVICE(0x177f, 0x0254) },
1432 	/* TP-LINK */
1433 	{ USB_DEVICE(0xf201, 0x5370) },
1434 #endif
1435 	{ 0, }
1436 };
1437 
1438 MODULE_AUTHOR(DRV_PROJECT);
1439 MODULE_VERSION(DRV_VERSION);
1440 MODULE_DESCRIPTION("Ralink RT2800 USB Wireless LAN driver.");
1441 MODULE_SUPPORTED_DEVICE("Ralink RT2870 USB chipset based cards");
1442 MODULE_DEVICE_TABLE(usb, rt2800usb_device_table);
1443 MODULE_FIRMWARE(FIRMWARE_RT2870);
1444 MODULE_LICENSE("GPL");
1445 
1446 static int rt2800usb_probe(struct usb_interface *usb_intf,
1447 			   const struct usb_device_id *id)
1448 {
1449 	return rt2x00usb_probe(usb_intf, &rt2800usb_ops);
1450 }
1451 
1452 static struct usb_driver rt2800usb_driver = {
1453 	.name		= KBUILD_MODNAME,
1454 	.id_table	= rt2800usb_device_table,
1455 	.probe		= rt2800usb_probe,
1456 	.disconnect	= rt2x00usb_disconnect,
1457 	.suspend	= rt2x00usb_suspend,
1458 	.resume		= rt2x00usb_resume,
1459 	.reset_resume	= rt2x00usb_resume,
1460 	.disable_hub_initiated_lpm = 1,
1461 };
1462 
1463 module_usb_driver(rt2800usb_driver);
1464