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signals: dequeue_signal: don't check SIGNAL_GROUP_EXIT when setting SIGNAL_STOP_DEQUEUED
[linux-2.6/mini2440.git] / drivers / bluetooth / bfusb.c
blob0c211adbc06398c80ed98d1b6006b8ced30e8ded
1 /*
2 *
3 * AVM BlueFRITZ! USB driver
4 *
5 * Copyright (C) 2003-2006 Marcel Holtmann <marcel@holtmann.org>
6 *
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 *
22 */
23
24 #include <linux/module.h>
25
26 #include <linux/kernel.h>
27 #include <linux/init.h>
28 #include <linux/slab.h>
29 #include <linux/types.h>
30 #include <linux/errno.h>
31 #include <linux/skbuff.h>
32
33 #include <linux/device.h>
34 #include <linux/firmware.h>
35
36 #include <linux/usb.h>
37
38 #include <net/bluetooth/bluetooth.h>
39 #include <net/bluetooth/hci_core.h>
40
41 #ifndef CONFIG_BT_HCIBFUSB_DEBUG
42 #undef BT_DBG
43 #define BT_DBG(D...)
44 #endif
45
46 #define VERSION "1.1"
47
48 static int ignore = 0;
49
50 static struct usb_driver bfusb_driver;
51
52 static struct usb_device_id bfusb_table[] = {
53 /* AVM BlueFRITZ! USB */
54 { USB_DEVICE(0x057c, 0x2200) },
55
56 { } /* Terminating entry */
57 };
58
59 MODULE_DEVICE_TABLE(usb, bfusb_table);
60
61 #define BFUSB_MAX_BLOCK_SIZE 256
62
63 #define BFUSB_BLOCK_TIMEOUT 3000
64
65 #define BFUSB_TX_PROCESS 1
66 #define BFUSB_TX_WAKEUP 2
67
68 #define BFUSB_MAX_BULK_TX 2
69 #define BFUSB_MAX_BULK_RX 2
70
71 struct bfusb_data {
72 struct hci_dev *hdev;
73
74 unsigned long state;
75
76 struct usb_device *udev;
77
78 unsigned int bulk_in_ep;
79 unsigned int bulk_out_ep;
80 unsigned int bulk_pkt_size;
81
82 rwlock_t lock;
83
84 struct sk_buff_head transmit_q;
85
86 struct sk_buff *reassembly;
87
88 atomic_t pending_tx;
89 struct sk_buff_head pending_q;
90 struct sk_buff_head completed_q;
91 };
92
93 struct bfusb_data_scb {
94 struct urb *urb;
95 };
96
97 static void bfusb_tx_complete(struct urb *urb);
98 static void bfusb_rx_complete(struct urb *urb);
99
100 static struct urb *bfusb_get_completed(struct bfusb_data *data)
101 {
102 struct sk_buff *skb;
103 struct urb *urb = NULL;
104
105 BT_DBG("bfusb %p", data);
106
107 skb = skb_dequeue(&data->completed_q);
108 if (skb) {
109 urb = ((struct bfusb_data_scb *) skb->cb)->urb;
110 kfree_skb(skb);
111 }
112
113 return urb;
114 }
115
116 static void bfusb_unlink_urbs(struct bfusb_data *data)
117 {
118 struct sk_buff *skb;
119 struct urb *urb;
120
121 BT_DBG("bfusb %p", data);
122
123 while ((skb = skb_dequeue(&data->pending_q))) {
124 urb = ((struct bfusb_data_scb *) skb->cb)->urb;
125 usb_kill_urb(urb);
126 skb_queue_tail(&data->completed_q, skb);
127 }
128
129 while ((urb = bfusb_get_completed(data)))
130 usb_free_urb(urb);
131 }
132
133 static int bfusb_send_bulk(struct bfusb_data *data, struct sk_buff *skb)
134 {
135 struct bfusb_data_scb *scb = (void *) skb->cb;
136 struct urb *urb = bfusb_get_completed(data);
137 int err, pipe;
138
139 BT_DBG("bfusb %p skb %p len %d", data, skb, skb->len);
140
141 if (!urb && !(urb = usb_alloc_urb(0, GFP_ATOMIC)))
142 return -ENOMEM;
143
144 pipe = usb_sndbulkpipe(data->udev, data->bulk_out_ep);
145
146 usb_fill_bulk_urb(urb, data->udev, pipe, skb->data, skb->len,
147 bfusb_tx_complete, skb);
148
149 scb->urb = urb;
150
151 skb_queue_tail(&data->pending_q, skb);
152
153 err = usb_submit_urb(urb, GFP_ATOMIC);
154 if (err) {
155 BT_ERR("%s bulk tx submit failed urb %p err %d",
156 data->hdev->name, urb, err);
157 skb_unlink(skb, &data->pending_q);
158 usb_free_urb(urb);
159 } else
160 atomic_inc(&data->pending_tx);
161
162 return err;
163 }
164
165 static void bfusb_tx_wakeup(struct bfusb_data *data)
166 {
167 struct sk_buff *skb;
168
169 BT_DBG("bfusb %p", data);
170
171 if (test_and_set_bit(BFUSB_TX_PROCESS, &data->state)) {
172 set_bit(BFUSB_TX_WAKEUP, &data->state);
173 return;
174 }
175
176 do {
177 clear_bit(BFUSB_TX_WAKEUP, &data->state);
178
179 while ((atomic_read(&data->pending_tx) < BFUSB_MAX_BULK_TX) &&
180 (skb = skb_dequeue(&data->transmit_q))) {
181 if (bfusb_send_bulk(data, skb) < 0) {
182 skb_queue_head(&data->transmit_q, skb);
183 break;
184 }
185 }
186
187 } while (test_bit(BFUSB_TX_WAKEUP, &data->state));
188
189 clear_bit(BFUSB_TX_PROCESS, &data->state);
190 }
191
192 static void bfusb_tx_complete(struct urb *urb)
193 {
194 struct sk_buff *skb = (struct sk_buff *) urb->context;
195 struct bfusb_data *data = (struct bfusb_data *) skb->dev;
196
197 BT_DBG("bfusb %p urb %p skb %p len %d", data, urb, skb, skb->len);
198
199 atomic_dec(&data->pending_tx);
200
201 if (!test_bit(HCI_RUNNING, &data->hdev->flags))
202 return;
203
204 if (!urb->status)
205 data->hdev->stat.byte_tx += skb->len;
206 else
207 data->hdev->stat.err_tx++;
208
209 read_lock(&data->lock);
210
211 skb_unlink(skb, &data->pending_q);
212 skb_queue_tail(&data->completed_q, skb);
213
214 bfusb_tx_wakeup(data);
215
216 read_unlock(&data->lock);
217 }
218
219
220 static int bfusb_rx_submit(struct bfusb_data *data, struct urb *urb)
221 {
222 struct bfusb_data_scb *scb;
223 struct sk_buff *skb;
224 int err, pipe, size = HCI_MAX_FRAME_SIZE + 32;
225
226 BT_DBG("bfusb %p urb %p", bfusb, urb);
227
228 if (!urb && !(urb = usb_alloc_urb(0, GFP_ATOMIC)))
229 return -ENOMEM;
230
231 skb = bt_skb_alloc(size, GFP_ATOMIC);
232 if (!skb) {
233 usb_free_urb(urb);
234 return -ENOMEM;
235 }
236
237 skb->dev = (void *) data;
238
239 scb = (struct bfusb_data_scb *) skb->cb;
240 scb->urb = urb;
241
242 pipe = usb_rcvbulkpipe(data->udev, data->bulk_in_ep);
243
244 usb_fill_bulk_urb(urb, data->udev, pipe, skb->data, size,
245 bfusb_rx_complete, skb);
246
247 skb_queue_tail(&data->pending_q, skb);
248
249 err = usb_submit_urb(urb, GFP_ATOMIC);
250 if (err) {
251 BT_ERR("%s bulk rx submit failed urb %p err %d",
252 data->hdev->name, urb, err);
253 skb_unlink(skb, &data->pending_q);
254 kfree_skb(skb);
255 usb_free_urb(urb);
256 }
257
258 return err;
259 }
260
261 static inline int bfusb_recv_block(struct bfusb_data *data, int hdr, unsigned char *buf, int len)
262 {
263 BT_DBG("bfusb %p hdr 0x%02x data %p len %d", data, hdr, buf, len);
264
265 if (hdr & 0x10) {
266 BT_ERR("%s error in block", data->hdev->name);
267 if (data->reassembly)
268 kfree_skb(data->reassembly);
269 data->reassembly = NULL;
270 return -EIO;
271 }
272
273 if (hdr & 0x04) {
274 struct sk_buff *skb;
275 unsigned char pkt_type;
276 int pkt_len = 0;
277
278 if (data->reassembly) {
279 BT_ERR("%s unexpected start block", data->hdev->name);
280 kfree_skb(data->reassembly);
281 data->reassembly = NULL;
282 }
283
284 if (len < 1) {
285 BT_ERR("%s no packet type found", data->hdev->name);
286 return -EPROTO;
287 }
288
289 pkt_type = *buf++; len--;
290
291 switch (pkt_type) {
292 case HCI_EVENT_PKT:
293 if (len >= HCI_EVENT_HDR_SIZE) {
294 struct hci_event_hdr *hdr = (struct hci_event_hdr *) buf;
295 pkt_len = HCI_EVENT_HDR_SIZE + hdr->plen;
296 } else {
297 BT_ERR("%s event block is too short", data->hdev->name);
298 return -EILSEQ;
299 }
300 break;
301
302 case HCI_ACLDATA_PKT:
303 if (len >= HCI_ACL_HDR_SIZE) {
304 struct hci_acl_hdr *hdr = (struct hci_acl_hdr *) buf;
305 pkt_len = HCI_ACL_HDR_SIZE + __le16_to_cpu(hdr->dlen);
306 } else {
307 BT_ERR("%s data block is too short", data->hdev->name);
308 return -EILSEQ;
309 }
310 break;
311
312 case HCI_SCODATA_PKT:
313 if (len >= HCI_SCO_HDR_SIZE) {
314 struct hci_sco_hdr *hdr = (struct hci_sco_hdr *) buf;
315 pkt_len = HCI_SCO_HDR_SIZE + hdr->dlen;
316 } else {
317 BT_ERR("%s audio block is too short", data->hdev->name);
318 return -EILSEQ;
319 }
320 break;
321 }
322
323 skb = bt_skb_alloc(pkt_len, GFP_ATOMIC);
324 if (!skb) {
325 BT_ERR("%s no memory for the packet", data->hdev->name);
326 return -ENOMEM;
327 }
328
329 skb->dev = (void *) data->hdev;
330 bt_cb(skb)->pkt_type = pkt_type;
331
332 data->reassembly = skb;
333 } else {
334 if (!data->reassembly) {
335 BT_ERR("%s unexpected continuation block", data->hdev->name);
336 return -EIO;
337 }
338 }
339
340 if (len > 0)
341 memcpy(skb_put(data->reassembly, len), buf, len);
342
343 if (hdr & 0x08) {
344 hci_recv_frame(data->reassembly);
345 data->reassembly = NULL;
346 }
347
348 return 0;
349 }
350
351 static void bfusb_rx_complete(struct urb *urb)
352 {
353 struct sk_buff *skb = (struct sk_buff *) urb->context;
354 struct bfusb_data *data = (struct bfusb_data *) skb->dev;
355 unsigned char *buf = urb->transfer_buffer;
356 int count = urb->actual_length;
357 int err, hdr, len;
358
359 BT_DBG("bfusb %p urb %p skb %p len %d", bfusb, urb, skb, skb->len);
360
361 read_lock(&data->lock);
362
363 if (!test_bit(HCI_RUNNING, &data->hdev->flags))
364 goto unlock;
365
366 if (urb->status || !count)
367 goto resubmit;
368
369 data->hdev->stat.byte_rx += count;
370
371 skb_put(skb, count);
372
373 while (count) {
374 hdr = buf[0] | (buf[1] << 8);
375
376 if (hdr & 0x4000) {
377 len = 0;
378 count -= 2;
379 buf += 2;
380 } else {
381 len = (buf[2] == 0) ? 256 : buf[2];
382 count -= 3;
383 buf += 3;
384 }
385
386 if (count < len) {
387 BT_ERR("%s block extends over URB buffer ranges",
388 data->hdev->name);
389 }
390
391 if ((hdr & 0xe1) == 0xc1)
392 bfusb_recv_block(data, hdr, buf, len);
393
394 count -= len;
395 buf += len;
396 }
397
398 skb_unlink(skb, &data->pending_q);
399 kfree_skb(skb);
400
401 bfusb_rx_submit(data, urb);
402
403 read_unlock(&data->lock);
404
405 return;
406
407 resubmit:
408 urb->dev = data->udev;
409
410 err = usb_submit_urb(urb, GFP_ATOMIC);
411 if (err) {
412 BT_ERR("%s bulk resubmit failed urb %p err %d",
413 data->hdev->name, urb, err);
414 }
415
416 unlock:
417 read_unlock(&data->lock);
418 }
419
420 static int bfusb_open(struct hci_dev *hdev)
421 {
422 struct bfusb_data *data = hdev->driver_data;
423 unsigned long flags;
424 int i, err;
425
426 BT_DBG("hdev %p bfusb %p", hdev, data);
427
428 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
429 return 0;
430
431 write_lock_irqsave(&data->lock, flags);
432
433 err = bfusb_rx_submit(data, NULL);
434 if (!err) {
435 for (i = 1; i < BFUSB_MAX_BULK_RX; i++)
436 bfusb_rx_submit(data, NULL);
437 } else {
438 clear_bit(HCI_RUNNING, &hdev->flags);
439 }
440
441 write_unlock_irqrestore(&data->lock, flags);
442
443 return err;
444 }
445
446 static int bfusb_flush(struct hci_dev *hdev)
447 {
448 struct bfusb_data *data = hdev->driver_data;
449
450 BT_DBG("hdev %p bfusb %p", hdev, data);
451
452 skb_queue_purge(&data->transmit_q);
453
454 return 0;
455 }
456
457 static int bfusb_close(struct hci_dev *hdev)
458 {
459 struct bfusb_data *data = hdev->driver_data;
460 unsigned long flags;
461
462 BT_DBG("hdev %p bfusb %p", hdev, data);
463
464 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
465 return 0;
466
467 write_lock_irqsave(&data->lock, flags);
468 write_unlock_irqrestore(&data->lock, flags);
469
470 bfusb_unlink_urbs(data);
471 bfusb_flush(hdev);
472
473 return 0;
474 }
475
476 static int bfusb_send_frame(struct sk_buff *skb)
477 {
478 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
479 struct bfusb_data *data;
480 struct sk_buff *nskb;
481 unsigned char buf[3];
482 int sent = 0, size, count;
483
484 BT_DBG("hdev %p skb %p type %d len %d", hdev, skb, bt_cb(skb)->pkt_type, skb->len);
485
486 if (!hdev) {
487 BT_ERR("Frame for unknown HCI device (hdev=NULL)");
488 return -ENODEV;
489 }
490
491 if (!test_bit(HCI_RUNNING, &hdev->flags))
492 return -EBUSY;
493
494 data = hdev->driver_data;
495
496 switch (bt_cb(skb)->pkt_type) {
497 case HCI_COMMAND_PKT:
498 hdev->stat.cmd_tx++;
499 break;
500 case HCI_ACLDATA_PKT:
501 hdev->stat.acl_tx++;
502 break;
503 case HCI_SCODATA_PKT:
504 hdev->stat.sco_tx++;
505 break;
506 };
507
508 /* Prepend skb with frame type */
509 memcpy(skb_push(skb, 1), &bt_cb(skb)->pkt_type, 1);
510
511 count = skb->len;
512
513 /* Max HCI frame size seems to be 1511 + 1 */
514 nskb = bt_skb_alloc(count + 32, GFP_ATOMIC);
515 if (!nskb) {
516 BT_ERR("Can't allocate memory for new packet");
517 return -ENOMEM;
518 }
519
520 nskb->dev = (void *) data;
521
522 while (count) {
523 size = min_t(uint, count, BFUSB_MAX_BLOCK_SIZE);
524
525 buf[0] = 0xc1 | ((sent == 0) ? 0x04 : 0) | ((count == size) ? 0x08 : 0);
526 buf[1] = 0x00;
527 buf[2] = (size == BFUSB_MAX_BLOCK_SIZE) ? 0 : size;
528
529 memcpy(skb_put(nskb, 3), buf, 3);
530 skb_copy_from_linear_data_offset(skb, sent, skb_put(nskb, size), size);
531
532 sent += size;
533 count -= size;
534 }
535
536 /* Don't send frame with multiple size of bulk max packet */
537 if ((nskb->len % data->bulk_pkt_size) == 0) {
538 buf[0] = 0xdd;
539 buf[1] = 0x00;
540 memcpy(skb_put(nskb, 2), buf, 2);
541 }
542
543 read_lock(&data->lock);
544
545 skb_queue_tail(&data->transmit_q, nskb);
546 bfusb_tx_wakeup(data);
547
548 read_unlock(&data->lock);
549
550 kfree_skb(skb);
551
552 return 0;
553 }
554
555 static void bfusb_destruct(struct hci_dev *hdev)
556 {
557 struct bfusb_data *data = hdev->driver_data;
558
559 BT_DBG("hdev %p bfusb %p", hdev, data);
560
561 kfree(data);
562 }
563
564 static int bfusb_ioctl(struct hci_dev *hdev, unsigned int cmd, unsigned long arg)
565 {
566 return -ENOIOCTLCMD;
567 }
568
569 static int bfusb_load_firmware(struct bfusb_data *data,
570 const unsigned char *firmware, int count)
571 {
572 unsigned char *buf;
573 int err, pipe, len, size, sent = 0;
574
575 BT_DBG("bfusb %p udev %p", data, data->udev);
576
577 BT_INFO("BlueFRITZ! USB loading firmware");
578
579 pipe = usb_sndctrlpipe(data->udev, 0);
580
581 if (usb_control_msg(data->udev, pipe, USB_REQ_SET_CONFIGURATION,
582 0, 1, 0, NULL, 0, USB_CTRL_SET_TIMEOUT) < 0) {
583 BT_ERR("Can't change to loading configuration");
584 return -EBUSY;
585 }
586
587 data->udev->toggle[0] = data->udev->toggle[1] = 0;
588
589 buf = kmalloc(BFUSB_MAX_BLOCK_SIZE + 3, GFP_ATOMIC);
590 if (!buf) {
591 BT_ERR("Can't allocate memory chunk for firmware");
592 return -ENOMEM;
593 }
594
595 pipe = usb_sndbulkpipe(data->udev, data->bulk_out_ep);
596
597 while (count) {
598 size = min_t(uint, count, BFUSB_MAX_BLOCK_SIZE + 3);
599
600 memcpy(buf, firmware + sent, size);
601
602 err = usb_bulk_msg(data->udev, pipe, buf, size,
603 &len, BFUSB_BLOCK_TIMEOUT);
604
605 if (err || (len != size)) {
606 BT_ERR("Error in firmware loading");
607 goto error;
608 }
609
610 sent += size;
611 count -= size;
612 }
613
614 err = usb_bulk_msg(data->udev, pipe, NULL, 0,
615 &len, BFUSB_BLOCK_TIMEOUT);
616 if (err < 0) {
617 BT_ERR("Error in null packet request");
618 goto error;
619 }
620
621 pipe = usb_sndctrlpipe(data->udev, 0);
622
623 err = usb_control_msg(data->udev, pipe, USB_REQ_SET_CONFIGURATION,
624 0, 2, 0, NULL, 0, USB_CTRL_SET_TIMEOUT);
625 if (err < 0) {
626 BT_ERR("Can't change to running configuration");
627 goto error;
628 }
629
630 data->udev->toggle[0] = data->udev->toggle[1] = 0;
631
632 BT_INFO("BlueFRITZ! USB device ready");
633
634 kfree(buf);
635 return 0;
636
637 error:
638 kfree(buf);
639
640 pipe = usb_sndctrlpipe(data->udev, 0);
641
642 usb_control_msg(data->udev, pipe, USB_REQ_SET_CONFIGURATION,
643 0, 0, 0, NULL, 0, USB_CTRL_SET_TIMEOUT);
644
645 return err;
646 }
647
648 static int bfusb_probe(struct usb_interface *intf, const struct usb_device_id *id)
649 {
650 const struct firmware *firmware;
651 struct usb_device *udev = interface_to_usbdev(intf);
652 struct usb_host_endpoint *bulk_out_ep;
653 struct usb_host_endpoint *bulk_in_ep;
654 struct hci_dev *hdev;
655 struct bfusb_data *data;
656
657 BT_DBG("intf %p id %p", intf, id);
658
659 if (ignore)
660 return -ENODEV;
661
662 /* Check number of endpoints */
663 if (intf->cur_altsetting->desc.bNumEndpoints < 2)
664 return -EIO;
665
666 bulk_out_ep = &intf->cur_altsetting->endpoint[0];
667 bulk_in_ep = &intf->cur_altsetting->endpoint[1];
668
669 if (!bulk_out_ep || !bulk_in_ep) {
670 BT_ERR("Bulk endpoints not found");
671 goto done;
672 }
673
674 /* Initialize control structure and load firmware */
675 data = kzalloc(sizeof(struct bfusb_data), GFP_KERNEL);
676 if (!data) {
677 BT_ERR("Can't allocate memory for control structure");
678 goto done;
679 }
680
681 data->udev = udev;
682 data->bulk_in_ep = bulk_in_ep->desc.bEndpointAddress;
683 data->bulk_out_ep = bulk_out_ep->desc.bEndpointAddress;
684 data->bulk_pkt_size = le16_to_cpu(bulk_out_ep->desc.wMaxPacketSize);
685
686 rwlock_init(&data->lock);
687
688 data->reassembly = NULL;
689
690 skb_queue_head_init(&data->transmit_q);
691 skb_queue_head_init(&data->pending_q);
692 skb_queue_head_init(&data->completed_q);
693
694 if (request_firmware(&firmware, "bfubase.frm", &udev->dev) < 0) {
695 BT_ERR("Firmware request failed");
696 goto error;
697 }
698
699 BT_DBG("firmware data %p size %d", firmware->data, firmware->size);
700
701 if (bfusb_load_firmware(data, firmware->data, firmware->size) < 0) {
702 BT_ERR("Firmware loading failed");
703 goto release;
704 }
705
706 release_firmware(firmware);
707
708 /* Initialize and register HCI device */
709 hdev = hci_alloc_dev();
710 if (!hdev) {
711 BT_ERR("Can't allocate HCI device");
712 goto error;
713 }
714
715 data->hdev = hdev;
716
717 hdev->type = HCI_USB;
718 hdev->driver_data = data;
719 SET_HCIDEV_DEV(hdev, &intf->dev);
720
721 hdev->open = bfusb_open;
722 hdev->close = bfusb_close;
723 hdev->flush = bfusb_flush;
724 hdev->send = bfusb_send_frame;
725 hdev->destruct = bfusb_destruct;
726 hdev->ioctl = bfusb_ioctl;
727
728 hdev->owner = THIS_MODULE;
729
730 if (hci_register_dev(hdev) < 0) {
731 BT_ERR("Can't register HCI device");
732 hci_free_dev(hdev);
733 goto error;
734 }
735
736 usb_set_intfdata(intf, data);
737
738 return 0;
739
740 release:
741 release_firmware(firmware);
742
743 error:
744 kfree(data);
745
746 done:
747 return -EIO;
748 }
749
750 static void bfusb_disconnect(struct usb_interface *intf)
751 {
752 struct bfusb_data *data = usb_get_intfdata(intf);
753 struct hci_dev *hdev = data->hdev;
754
755 BT_DBG("intf %p", intf);
756
757 if (!hdev)
758 return;
759
760 usb_set_intfdata(intf, NULL);
761
762 bfusb_close(hdev);
763
764 if (hci_unregister_dev(hdev) < 0)
765 BT_ERR("Can't unregister HCI device %s", hdev->name);
766
767 hci_free_dev(hdev);
768 }
769
770 static struct usb_driver bfusb_driver = {
771 .name = "bfusb",
772 .probe = bfusb_probe,
773 .disconnect = bfusb_disconnect,
774 .id_table = bfusb_table,
775 };
776
777 static int __init bfusb_init(void)
778 {
779 int err;
780
781 BT_INFO("BlueFRITZ! USB driver ver %s", VERSION);
782
783 err = usb_register(&bfusb_driver);
784 if (err < 0)
785 BT_ERR("Failed to register BlueFRITZ! USB driver");
786
787 return err;
788 }
789
790 static void __exit bfusb_exit(void)
791 {
792 usb_deregister(&bfusb_driver);
793 }
794
795 module_init(bfusb_init);
796 module_exit(bfusb_exit);
797
798 module_param(ignore, bool, 0644);
799 MODULE_PARM_DESC(ignore, "Ignore devices from the matching table");
800
801 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
802 MODULE_DESCRIPTION("BlueFRITZ! USB driver ver " VERSION);
803 MODULE_VERSION(VERSION);
804 MODULE_LICENSE("GPL");
805 MODULE_FIRMWARE("bfubase.frm");
Support for the Chinese Samsung S3C2440 based development boards