Version:  2.0.40 2.2.26 2.4.37 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15 3.16 3.17 3.18 3.19 4.0 4.1

Linux/drivers/net/wireless/rt2x00/rt2800usb.c

  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_tkip_seq           = rt2800_get_tkip_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         /* Corega */
1030         { USB_DEVICE(0x07aa, 0x002f) },
1031         { USB_DEVICE(0x07aa, 0x003c) },
1032         { USB_DEVICE(0x07aa, 0x003f) },
1033         { USB_DEVICE(0x18c5, 0x0012) },
1034         /* D-Link */
1035         { USB_DEVICE(0x07d1, 0x3c09) },
1036         { USB_DEVICE(0x07d1, 0x3c0a) },
1037         { USB_DEVICE(0x07d1, 0x3c0d) },
1038         { USB_DEVICE(0x07d1, 0x3c0e) },
1039         { USB_DEVICE(0x07d1, 0x3c0f) },
1040         { USB_DEVICE(0x07d1, 0x3c11) },
1041         { USB_DEVICE(0x07d1, 0x3c13) },
1042         { USB_DEVICE(0x07d1, 0x3c15) },
1043         { USB_DEVICE(0x07d1, 0x3c16) },
1044         { USB_DEVICE(0x07d1, 0x3c17) },
1045         { USB_DEVICE(0x2001, 0x3317) },
1046         { USB_DEVICE(0x2001, 0x3c1b) },
1047         { USB_DEVICE(0x2001, 0x3c25) },
1048         /* Draytek */
1049         { USB_DEVICE(0x07fa, 0x7712) },
1050         /* DVICO */
1051         { USB_DEVICE(0x0fe9, 0xb307) },
1052         /* Edimax */
1053         { USB_DEVICE(0x7392, 0x4085) },
1054         { USB_DEVICE(0x7392, 0x7711) },
1055         { USB_DEVICE(0x7392, 0x7717) },
1056         { USB_DEVICE(0x7392, 0x7718) },
1057         { USB_DEVICE(0x7392, 0x7722) },
1058         /* Encore */
1059         { USB_DEVICE(0x203d, 0x1480) },
1060         { USB_DEVICE(0x203d, 0x14a9) },
1061         /* EnGenius */
1062         { USB_DEVICE(0x1740, 0x9701) },
1063         { USB_DEVICE(0x1740, 0x9702) },
1064         { USB_DEVICE(0x1740, 0x9703) },
1065         { USB_DEVICE(0x1740, 0x9705) },
1066         { USB_DEVICE(0x1740, 0x9706) },
1067         { USB_DEVICE(0x1740, 0x9707) },
1068         { USB_DEVICE(0x1740, 0x9708) },
1069         { USB_DEVICE(0x1740, 0x9709) },
1070         /* Gemtek */
1071         { USB_DEVICE(0x15a9, 0x0012) },
1072         /* Gigabyte */
1073         { USB_DEVICE(0x1044, 0x800b) },
1074         { USB_DEVICE(0x1044, 0x800d) },
1075         /* Hawking */
1076         { USB_DEVICE(0x0e66, 0x0001) },
1077         { USB_DEVICE(0x0e66, 0x0003) },
1078         { USB_DEVICE(0x0e66, 0x0009) },
1079         { USB_DEVICE(0x0e66, 0x000b) },
1080         { USB_DEVICE(0x0e66, 0x0013) },
1081         { USB_DEVICE(0x0e66, 0x0017) },
1082         { USB_DEVICE(0x0e66, 0x0018) },
1083         /* I-O DATA */
1084         { USB_DEVICE(0x04bb, 0x0945) },
1085         { USB_DEVICE(0x04bb, 0x0947) },
1086         { USB_DEVICE(0x04bb, 0x0948) },
1087         /* Linksys */
1088         { USB_DEVICE(0x13b1, 0x0031) },
1089         { USB_DEVICE(0x1737, 0x0070) },
1090         { USB_DEVICE(0x1737, 0x0071) },
1091         { USB_DEVICE(0x1737, 0x0077) },
1092         { USB_DEVICE(0x1737, 0x0078) },
1093         /* Logitec */
1094         { USB_DEVICE(0x0789, 0x0162) },
1095         { USB_DEVICE(0x0789, 0x0163) },
1096         { USB_DEVICE(0x0789, 0x0164) },
1097         { USB_DEVICE(0x0789, 0x0166) },
1098         /* Motorola */
1099         { USB_DEVICE(0x100d, 0x9031) },
1100         /* MSI */
1101         { USB_DEVICE(0x0db0, 0x3820) },
1102         { USB_DEVICE(0x0db0, 0x3821) },
1103         { USB_DEVICE(0x0db0, 0x3822) },
1104         { USB_DEVICE(0x0db0, 0x3870) },
1105         { USB_DEVICE(0x0db0, 0x3871) },
1106         { USB_DEVICE(0x0db0, 0x6899) },
1107         { USB_DEVICE(0x0db0, 0x821a) },
1108         { USB_DEVICE(0x0db0, 0x822a) },
1109         { USB_DEVICE(0x0db0, 0x822b) },
1110         { USB_DEVICE(0x0db0, 0x822c) },
1111         { USB_DEVICE(0x0db0, 0x870a) },
1112         { USB_DEVICE(0x0db0, 0x871a) },
1113         { USB_DEVICE(0x0db0, 0x871b) },
1114         { USB_DEVICE(0x0db0, 0x871c) },
1115         { USB_DEVICE(0x0db0, 0x899a) },
1116         /* Ovislink */
1117         { USB_DEVICE(0x1b75, 0x3071) },
1118         { USB_DEVICE(0x1b75, 0x3072) },
1119         { USB_DEVICE(0x1b75, 0xa200) },
1120         /* Para */
1121         { USB_DEVICE(0x20b8, 0x8888) },
1122         /* Pegatron */
1123         { USB_DEVICE(0x1d4d, 0x0002) },
1124         { USB_DEVICE(0x1d4d, 0x000c) },
1125         { USB_DEVICE(0x1d4d, 0x000e) },
1126         { USB_DEVICE(0x1d4d, 0x0011) },
1127         /* Philips */
1128         { USB_DEVICE(0x0471, 0x200f) },
1129         /* Planex */
1130         { USB_DEVICE(0x2019, 0x5201) },
1131         { USB_DEVICE(0x2019, 0xab25) },
1132         { USB_DEVICE(0x2019, 0xed06) },
1133         /* Quanta */
1134         { USB_DEVICE(0x1a32, 0x0304) },
1135         /* Ralink */
1136         { USB_DEVICE(0x148f, 0x2070) },
1137         { USB_DEVICE(0x148f, 0x2770) },
1138         { USB_DEVICE(0x148f, 0x2870) },
1139         { USB_DEVICE(0x148f, 0x3070) },
1140         { USB_DEVICE(0x148f, 0x3071) },
1141         { USB_DEVICE(0x148f, 0x3072) },
1142         /* Samsung */
1143         { USB_DEVICE(0x04e8, 0x2018) },
1144         /* Siemens */
1145         { USB_DEVICE(0x129b, 0x1828) },
1146         /* Sitecom */
1147         { USB_DEVICE(0x0df6, 0x0017) },
1148         { USB_DEVICE(0x0df6, 0x002b) },
1149         { USB_DEVICE(0x0df6, 0x002c) },
1150         { USB_DEVICE(0x0df6, 0x002d) },
1151         { USB_DEVICE(0x0df6, 0x0039) },
1152         { USB_DEVICE(0x0df6, 0x003b) },
1153         { USB_DEVICE(0x0df6, 0x003d) },
1154         { USB_DEVICE(0x0df6, 0x003e) },
1155         { USB_DEVICE(0x0df6, 0x003f) },
1156         { USB_DEVICE(0x0df6, 0x0040) },
1157         { USB_DEVICE(0x0df6, 0x0042) },
1158         { USB_DEVICE(0x0df6, 0x0047) },
1159         { USB_DEVICE(0x0df6, 0x0048) },
1160         { USB_DEVICE(0x0df6, 0x0051) },
1161         { USB_DEVICE(0x0df6, 0x005f) },
1162         { USB_DEVICE(0x0df6, 0x0060) },
1163         /* SMC */
1164         { USB_DEVICE(0x083a, 0x6618) },
1165         { USB_DEVICE(0x083a, 0x7511) },
1166         { USB_DEVICE(0x083a, 0x7512) },
1167         { USB_DEVICE(0x083a, 0x7522) },
1168         { USB_DEVICE(0x083a, 0x8522) },
1169         { USB_DEVICE(0x083a, 0xa618) },
1170         { USB_DEVICE(0x083a, 0xa701) },
1171         { USB_DEVICE(0x083a, 0xa702) },
1172         { USB_DEVICE(0x083a, 0xa703) },
1173         { USB_DEVICE(0x083a, 0xb522) },
1174         /* Sparklan */
1175         { USB_DEVICE(0x15a9, 0x0006) },
1176         /* Sweex */
1177         { USB_DEVICE(0x177f, 0x0153) },
1178         { USB_DEVICE(0x177f, 0x0164) },
1179         { USB_DEVICE(0x177f, 0x0302) },
1180         { USB_DEVICE(0x177f, 0x0313) },
1181         { USB_DEVICE(0x177f, 0x0323) },
1182         { USB_DEVICE(0x177f, 0x0324) },
1183         /* U-Media */
1184         { USB_DEVICE(0x157e, 0x300e) },
1185         { USB_DEVICE(0x157e, 0x3013) },
1186         /* ZCOM */
1187         { USB_DEVICE(0x0cde, 0x0022) },
1188         { USB_DEVICE(0x0cde, 0x0025) },
1189         /* Zinwell */
1190         { USB_DEVICE(0x5a57, 0x0280) },
1191         { USB_DEVICE(0x5a57, 0x0282) },
1192         { USB_DEVICE(0x5a57, 0x0283) },
1193         { USB_DEVICE(0x5a57, 0x5257) },
1194         /* Zyxel */
1195         { USB_DEVICE(0x0586, 0x3416) },
1196         { USB_DEVICE(0x0586, 0x3418) },
1197         { USB_DEVICE(0x0586, 0x341a) },
1198         { USB_DEVICE(0x0586, 0x341e) },
1199         { USB_DEVICE(0x0586, 0x343e) },
1200 #ifdef CONFIG_RT2800USB_RT33XX
1201         /* Belkin */
1202         { USB_DEVICE(0x050d, 0x945b) },
1203         /* D-Link */
1204         { USB_DEVICE(0x2001, 0x3c17) },
1205         /* Panasonic */
1206         { USB_DEVICE(0x083a, 0xb511) },
1207         /* Philips */
1208         { USB_DEVICE(0x0471, 0x20dd) },
1209         /* Ralink */
1210         { USB_DEVICE(0x148f, 0x3370) },
1211         { USB_DEVICE(0x148f, 0x8070) },
1212         /* Sitecom */
1213         { USB_DEVICE(0x0df6, 0x0050) },
1214         /* Sweex */
1215         { USB_DEVICE(0x177f, 0x0163) },
1216         { USB_DEVICE(0x177f, 0x0165) },
1217 #endif
1218 #ifdef CONFIG_RT2800USB_RT35XX
1219         /* Allwin */
1220         { USB_DEVICE(0x8516, 0x3572) },
1221         /* Askey */
1222         { USB_DEVICE(0x1690, 0x0744) },
1223         { USB_DEVICE(0x1690, 0x0761) },
1224         { USB_DEVICE(0x1690, 0x0764) },
1225         /* ASUS */
1226         { USB_DEVICE(0x0b05, 0x179d) },
1227         /* Cisco */
1228         { USB_DEVICE(0x167b, 0x4001) },
1229         /* EnGenius */
1230         { USB_DEVICE(0x1740, 0x9801) },
1231         /* I-O DATA */
1232         { USB_DEVICE(0x04bb, 0x0944) },
1233         /* Linksys */
1234         { USB_DEVICE(0x13b1, 0x002f) },
1235         { USB_DEVICE(0x1737, 0x0079) },
1236         /* Logitec */
1237         { USB_DEVICE(0x0789, 0x0170) },
1238         /* Ralink */
1239         { USB_DEVICE(0x148f, 0x3572) },
1240         /* Sitecom */
1241         { USB_DEVICE(0x0df6, 0x0041) },
1242         { USB_DEVICE(0x0df6, 0x0062) },
1243         { USB_DEVICE(0x0df6, 0x0065) },
1244         { USB_DEVICE(0x0df6, 0x0066) },
1245         { USB_DEVICE(0x0df6, 0x0068) },
1246         /* Toshiba */
1247         { USB_DEVICE(0x0930, 0x0a07) },
1248         /* Zinwell */
1249         { USB_DEVICE(0x5a57, 0x0284) },
1250 #endif
1251 #ifdef CONFIG_RT2800USB_RT3573
1252         /* AirLive */
1253         { USB_DEVICE(0x1b75, 0x7733) },
1254         /* ASUS */
1255         { USB_DEVICE(0x0b05, 0x17bc) },
1256         { USB_DEVICE(0x0b05, 0x17ad) },
1257         /* Belkin */
1258         { USB_DEVICE(0x050d, 0x1103) },
1259         /* Cameo */
1260         { USB_DEVICE(0x148f, 0xf301) },
1261         /* D-Link */
1262         { USB_DEVICE(0x2001, 0x3c1f) },
1263         /* Edimax */
1264         { USB_DEVICE(0x7392, 0x7733) },
1265         /* Hawking */
1266         { USB_DEVICE(0x0e66, 0x0020) },
1267         { USB_DEVICE(0x0e66, 0x0021) },
1268         /* I-O DATA */
1269         { USB_DEVICE(0x04bb, 0x094e) },
1270         /* Linksys */
1271         { USB_DEVICE(0x13b1, 0x003b) },
1272         /* Logitec */
1273         { USB_DEVICE(0x0789, 0x016b) },
1274         /* NETGEAR */
1275         { USB_DEVICE(0x0846, 0x9012) },
1276         { USB_DEVICE(0x0846, 0x9013) },
1277         { USB_DEVICE(0x0846, 0x9019) },
1278         /* Planex */
1279         { USB_DEVICE(0x2019, 0xed19) },
1280         /* Ralink */
1281         { USB_DEVICE(0x148f, 0x3573) },
1282         /* Sitecom */
1283         { USB_DEVICE(0x0df6, 0x0067) },
1284         { USB_DEVICE(0x0df6, 0x006a) },
1285         { USB_DEVICE(0x0df6, 0x006e) },
1286         /* ZyXEL */
1287         { USB_DEVICE(0x0586, 0x3421) },
1288 #endif
1289 #ifdef CONFIG_RT2800USB_RT53XX
1290         /* Arcadyan */
1291         { USB_DEVICE(0x043e, 0x7a12) },
1292         { USB_DEVICE(0x043e, 0x7a32) },
1293         /* ASUS */
1294         { USB_DEVICE(0x0b05, 0x17e8) },
1295         /* Azurewave */
1296         { USB_DEVICE(0x13d3, 0x3329) },
1297         { USB_DEVICE(0x13d3, 0x3365) },
1298         /* D-Link */
1299         { USB_DEVICE(0x2001, 0x3c15) },
1300         { USB_DEVICE(0x2001, 0x3c19) },
1301         { USB_DEVICE(0x2001, 0x3c1c) },
1302         { USB_DEVICE(0x2001, 0x3c1d) },
1303         { USB_DEVICE(0x2001, 0x3c1e) },
1304         { USB_DEVICE(0x2001, 0x3c20) },
1305         { USB_DEVICE(0x2001, 0x3c22) },
1306         { USB_DEVICE(0x2001, 0x3c23) },
1307         /* LG innotek */
1308         { USB_DEVICE(0x043e, 0x7a22) },
1309         { USB_DEVICE(0x043e, 0x7a42) },
1310         /* Panasonic */
1311         { USB_DEVICE(0x04da, 0x1801) },
1312         { USB_DEVICE(0x04da, 0x1800) },
1313         { USB_DEVICE(0x04da, 0x23f6) },
1314         /* Philips */
1315         { USB_DEVICE(0x0471, 0x2104) },
1316         { USB_DEVICE(0x0471, 0x2126) },
1317         { USB_DEVICE(0x0471, 0x2180) },
1318         { USB_DEVICE(0x0471, 0x2181) },
1319         { USB_DEVICE(0x0471, 0x2182) },
1320         /* Ralink */
1321         { USB_DEVICE(0x148f, 0x5370) },
1322         { USB_DEVICE(0x148f, 0x5372) },
1323 #endif
1324 #ifdef CONFIG_RT2800USB_RT55XX
1325         /* Arcadyan */
1326         { USB_DEVICE(0x043e, 0x7a32) },
1327         /* AVM GmbH */
1328         { USB_DEVICE(0x057c, 0x8501) },
1329         /* Buffalo */
1330         { USB_DEVICE(0x0411, 0x0241) },
1331         { USB_DEVICE(0x0411, 0x0253) },
1332         /* D-Link */
1333         { USB_DEVICE(0x2001, 0x3c1a) },
1334         { USB_DEVICE(0x2001, 0x3c21) },
1335         /* Proware */
1336         { USB_DEVICE(0x043e, 0x7a13) },
1337         /* Ralink */
1338         { USB_DEVICE(0x148f, 0x5572) },
1339         /* TRENDnet */
1340         { USB_DEVICE(0x20f4, 0x724a) },
1341 #endif
1342 #ifdef CONFIG_RT2800USB_UNKNOWN
1343         /*
1344          * Unclear what kind of devices these are (they aren't supported by the
1345          * vendor linux driver).
1346          */
1347         /* Abocom */
1348         { USB_DEVICE(0x07b8, 0x3073) },
1349         { USB_DEVICE(0x07b8, 0x3074) },
1350         /* Alpha Networks */
1351         { USB_DEVICE(0x14b2, 0x3c08) },
1352         { USB_DEVICE(0x14b2, 0x3c11) },
1353         /* Amigo */
1354         { USB_DEVICE(0x0e0b, 0x9031) },
1355         { USB_DEVICE(0x0e0b, 0x9041) },
1356         /* ASUS */
1357         { USB_DEVICE(0x0b05, 0x166a) },
1358         { USB_DEVICE(0x0b05, 0x1760) },
1359         { USB_DEVICE(0x0b05, 0x1761) },
1360         { USB_DEVICE(0x0b05, 0x1790) },
1361         { USB_DEVICE(0x0b05, 0x17a7) },
1362         /* AzureWave */
1363         { USB_DEVICE(0x13d3, 0x3262) },
1364         { USB_DEVICE(0x13d3, 0x3284) },
1365         { USB_DEVICE(0x13d3, 0x3322) },
1366         { USB_DEVICE(0x13d3, 0x3340) },
1367         { USB_DEVICE(0x13d3, 0x3399) },
1368         { USB_DEVICE(0x13d3, 0x3400) },
1369         { USB_DEVICE(0x13d3, 0x3401) },
1370         /* Belkin */
1371         { USB_DEVICE(0x050d, 0x1003) },
1372         /* Buffalo */
1373         { USB_DEVICE(0x0411, 0x012e) },
1374         { USB_DEVICE(0x0411, 0x0148) },
1375         { USB_DEVICE(0x0411, 0x0150) },
1376         /* Corega */
1377         { USB_DEVICE(0x07aa, 0x0041) },
1378         { USB_DEVICE(0x07aa, 0x0042) },
1379         { USB_DEVICE(0x18c5, 0x0008) },
1380         /* D-Link */
1381         { USB_DEVICE(0x07d1, 0x3c0b) },
1382         /* Encore */
1383         { USB_DEVICE(0x203d, 0x14a1) },
1384         /* EnGenius */
1385         { USB_DEVICE(0x1740, 0x0600) },
1386         { USB_DEVICE(0x1740, 0x0602) },
1387         /* Gemtek */
1388         { USB_DEVICE(0x15a9, 0x0010) },
1389         /* Gigabyte */
1390         { USB_DEVICE(0x1044, 0x800c) },
1391         /* Hercules */
1392         { USB_DEVICE(0x06f8, 0xe036) },
1393         /* Huawei */
1394         { USB_DEVICE(0x148f, 0xf101) },
1395         /* I-O DATA */
1396         { USB_DEVICE(0x04bb, 0x094b) },
1397         /* LevelOne */
1398         { USB_DEVICE(0x1740, 0x0605) },
1399         { USB_DEVICE(0x1740, 0x0615) },
1400         /* Logitec */
1401         { USB_DEVICE(0x0789, 0x0168) },
1402         { USB_DEVICE(0x0789, 0x0169) },
1403         /* Motorola */
1404         { USB_DEVICE(0x100d, 0x9032) },
1405         /* Pegatron */
1406         { USB_DEVICE(0x05a6, 0x0101) },
1407         { USB_DEVICE(0x1d4d, 0x0010) },
1408         /* Planex */
1409         { USB_DEVICE(0x2019, 0xab24) },
1410         { USB_DEVICE(0x2019, 0xab29) },
1411         /* Qcom */
1412         { USB_DEVICE(0x18e8, 0x6259) },
1413         /* RadioShack */
1414         { USB_DEVICE(0x08b9, 0x1197) },
1415         /* Sitecom */
1416         { USB_DEVICE(0x0df6, 0x003c) },
1417         { USB_DEVICE(0x0df6, 0x004a) },
1418         { USB_DEVICE(0x0df6, 0x004d) },
1419         { USB_DEVICE(0x0df6, 0x0053) },
1420         { USB_DEVICE(0x0df6, 0x0069) },
1421         { USB_DEVICE(0x0df6, 0x006f) },
1422         { USB_DEVICE(0x0df6, 0x0078) },
1423         /* SMC */
1424         { USB_DEVICE(0x083a, 0xa512) },
1425         { USB_DEVICE(0x083a, 0xc522) },
1426         { USB_DEVICE(0x083a, 0xd522) },
1427         { USB_DEVICE(0x083a, 0xf511) },
1428         /* Sweex */
1429         { USB_DEVICE(0x177f, 0x0254) },
1430         /* TP-LINK */
1431         { USB_DEVICE(0xf201, 0x5370) },
1432 #endif
1433         { 0, }
1434 };
1435 
1436 MODULE_AUTHOR(DRV_PROJECT);
1437 MODULE_VERSION(DRV_VERSION);
1438 MODULE_DESCRIPTION("Ralink RT2800 USB Wireless LAN driver.");
1439 MODULE_SUPPORTED_DEVICE("Ralink RT2870 USB chipset based cards");
1440 MODULE_DEVICE_TABLE(usb, rt2800usb_device_table);
1441 MODULE_FIRMWARE(FIRMWARE_RT2870);
1442 MODULE_LICENSE("GPL");
1443 
1444 static int rt2800usb_probe(struct usb_interface *usb_intf,
1445                            const struct usb_device_id *id)
1446 {
1447         return rt2x00usb_probe(usb_intf, &rt2800usb_ops);
1448 }
1449 
1450 static struct usb_driver rt2800usb_driver = {
1451         .name           = KBUILD_MODNAME,
1452         .id_table       = rt2800usb_device_table,
1453         .probe          = rt2800usb_probe,
1454         .disconnect     = rt2x00usb_disconnect,
1455         .suspend        = rt2x00usb_suspend,
1456         .resume         = rt2x00usb_resume,
1457         .reset_resume   = rt2x00usb_resume,
1458         .disable_hub_initiated_lpm = 1,
1459 };
1460 
1461 module_usb_driver(rt2800usb_driver);
1462 

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