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 | #define VERSION "1.2" |
42 | |
43 | static struct usb_driver bfusb_driver; |
44 | |
45 | static const struct usb_device_id bfusb_table[] = { |
46 | /* AVM BlueFRITZ! USB */ |
47 | { USB_DEVICE(0x057c, 0x2200) }, |
48 | |
49 | { } /* Terminating entry */ |
50 | }; |
51 | |
52 | MODULE_DEVICE_TABLE(usb, bfusb_table); |
53 | |
54 | #define BFUSB_MAX_BLOCK_SIZE 256 |
55 | |
56 | #define BFUSB_BLOCK_TIMEOUT 3000 |
57 | |
58 | #define BFUSB_TX_PROCESS 1 |
59 | #define BFUSB_TX_WAKEUP 2 |
60 | |
61 | #define BFUSB_MAX_BULK_TX 2 |
62 | #define BFUSB_MAX_BULK_RX 2 |
63 | |
64 | struct bfusb_data { |
65 | struct hci_dev *hdev; |
66 | |
67 | unsigned long state; |
68 | |
69 | struct usb_device *udev; |
70 | |
71 | unsigned int bulk_in_ep; |
72 | unsigned int bulk_out_ep; |
73 | unsigned int bulk_pkt_size; |
74 | |
75 | rwlock_t lock; |
76 | |
77 | struct sk_buff_head transmit_q; |
78 | |
79 | struct sk_buff *reassembly; |
80 | |
81 | atomic_t pending_tx; |
82 | struct sk_buff_head pending_q; |
83 | struct sk_buff_head completed_q; |
84 | }; |
85 | |
86 | struct bfusb_data_scb { |
87 | struct urb *urb; |
88 | }; |
89 | |
90 | static void bfusb_tx_complete(struct urb *urb); |
91 | static void bfusb_rx_complete(struct urb *urb); |
92 | |
93 | static struct urb *bfusb_get_completed(struct bfusb_data *data) |
94 | { |
95 | struct sk_buff *skb; |
96 | struct urb *urb = NULL; |
97 | |
98 | BT_DBG("bfusb %p" , data); |
99 | |
100 | skb = skb_dequeue(&data->completed_q); |
101 | if (skb) { |
102 | urb = ((struct bfusb_data_scb *) skb->cb)->urb; |
103 | kfree_skb(skb); |
104 | } |
105 | |
106 | return urb; |
107 | } |
108 | |
109 | static void bfusb_unlink_urbs(struct bfusb_data *data) |
110 | { |
111 | struct sk_buff *skb; |
112 | struct urb *urb; |
113 | |
114 | BT_DBG("bfusb %p" , data); |
115 | |
116 | while ((skb = skb_dequeue(&data->pending_q))) { |
117 | urb = ((struct bfusb_data_scb *) skb->cb)->urb; |
118 | usb_kill_urb(urb); |
119 | skb_queue_tail(&data->completed_q, skb); |
120 | } |
121 | |
122 | while ((urb = bfusb_get_completed(data))) |
123 | usb_free_urb(urb); |
124 | } |
125 | |
126 | static int bfusb_send_bulk(struct bfusb_data *data, struct sk_buff *skb) |
127 | { |
128 | struct bfusb_data_scb *scb = (void *) skb->cb; |
129 | struct urb *urb = bfusb_get_completed(data); |
130 | int err, pipe; |
131 | |
132 | BT_DBG("bfusb %p skb %p len %d" , data, skb, skb->len); |
133 | |
134 | if (!urb) { |
135 | urb = usb_alloc_urb(0, GFP_ATOMIC); |
136 | if (!urb) |
137 | return -ENOMEM; |
138 | } |
139 | |
140 | pipe = usb_sndbulkpipe(data->udev, data->bulk_out_ep); |
141 | |
142 | usb_fill_bulk_urb(urb, data->udev, pipe, skb->data, skb->len, |
143 | bfusb_tx_complete, skb); |
144 | |
145 | scb->urb = urb; |
146 | |
147 | skb_queue_tail(&data->pending_q, skb); |
148 | |
149 | err = usb_submit_urb(urb, GFP_ATOMIC); |
150 | if (err) { |
151 | BT_ERR("%s bulk tx submit failed urb %p err %d" , |
152 | data->hdev->name, urb, err); |
153 | skb_unlink(skb, &data->pending_q); |
154 | usb_free_urb(urb); |
155 | } else |
156 | atomic_inc(&data->pending_tx); |
157 | |
158 | return err; |
159 | } |
160 | |
161 | static void bfusb_tx_wakeup(struct bfusb_data *data) |
162 | { |
163 | struct sk_buff *skb; |
164 | |
165 | BT_DBG("bfusb %p" , data); |
166 | |
167 | if (test_and_set_bit(BFUSB_TX_PROCESS, &data->state)) { |
168 | set_bit(BFUSB_TX_WAKEUP, &data->state); |
169 | return; |
170 | } |
171 | |
172 | do { |
173 | clear_bit(BFUSB_TX_WAKEUP, &data->state); |
174 | |
175 | while ((atomic_read(&data->pending_tx) < BFUSB_MAX_BULK_TX) && |
176 | (skb = skb_dequeue(&data->transmit_q))) { |
177 | if (bfusb_send_bulk(data, skb) < 0) { |
178 | skb_queue_head(&data->transmit_q, skb); |
179 | break; |
180 | } |
181 | } |
182 | |
183 | } while (test_bit(BFUSB_TX_WAKEUP, &data->state)); |
184 | |
185 | clear_bit(BFUSB_TX_PROCESS, &data->state); |
186 | } |
187 | |
188 | static void bfusb_tx_complete(struct urb *urb) |
189 | { |
190 | struct sk_buff *skb = (struct sk_buff *) urb->context; |
191 | struct bfusb_data *data = (struct bfusb_data *) skb->dev; |
192 | |
193 | BT_DBG("bfusb %p urb %p skb %p len %d" , data, urb, skb, skb->len); |
194 | |
195 | atomic_dec(&data->pending_tx); |
196 | |
197 | if (!test_bit(HCI_RUNNING, &data->hdev->flags)) |
198 | return; |
199 | |
200 | if (!urb->status) |
201 | data->hdev->stat.byte_tx += skb->len; |
202 | else |
203 | data->hdev->stat.err_tx++; |
204 | |
205 | read_lock(&data->lock); |
206 | |
207 | skb_unlink(skb, &data->pending_q); |
208 | skb_queue_tail(&data->completed_q, skb); |
209 | |
210 | bfusb_tx_wakeup(data); |
211 | |
212 | read_unlock(&data->lock); |
213 | } |
214 | |
215 | |
216 | static int bfusb_rx_submit(struct bfusb_data *data, struct urb *urb) |
217 | { |
218 | struct bfusb_data_scb *scb; |
219 | struct sk_buff *skb; |
220 | int err, pipe, size = HCI_MAX_FRAME_SIZE + 32; |
221 | |
222 | BT_DBG("bfusb %p urb %p" , data, urb); |
223 | |
224 | if (!urb) { |
225 | urb = usb_alloc_urb(0, GFP_ATOMIC); |
226 | if (!urb) |
227 | return -ENOMEM; |
228 | } |
229 | |
230 | skb = bt_skb_alloc(size, GFP_ATOMIC); |
231 | if (!skb) { |
232 | usb_free_urb(urb); |
233 | return -ENOMEM; |
234 | } |
235 | |
236 | skb->dev = (void *) data; |
237 | |
238 | scb = (struct bfusb_data_scb *) skb->cb; |
239 | scb->urb = urb; |
240 | |
241 | pipe = usb_rcvbulkpipe(data->udev, data->bulk_in_ep); |
242 | |
243 | usb_fill_bulk_urb(urb, data->udev, pipe, skb->data, size, |
244 | bfusb_rx_complete, skb); |
245 | |
246 | skb_queue_tail(&data->pending_q, skb); |
247 | |
248 | err = usb_submit_urb(urb, GFP_ATOMIC); |
249 | if (err) { |
250 | BT_ERR("%s bulk rx submit failed urb %p err %d" , |
251 | data->hdev->name, urb, err); |
252 | skb_unlink(skb, &data->pending_q); |
253 | kfree_skb(skb); |
254 | usb_free_urb(urb); |
255 | } |
256 | |
257 | return err; |
258 | } |
259 | |
260 | static inline int bfusb_recv_block(struct bfusb_data *data, int hdr, unsigned char *buf, int len) |
261 | { |
262 | BT_DBG("bfusb %p hdr 0x%02x data %p len %d" , data, hdr, buf, len); |
263 | |
264 | if (hdr & 0x10) { |
265 | BT_ERR("%s error in block" , data->hdev->name); |
266 | kfree_skb(data->reassembly); |
267 | data->reassembly = NULL; |
268 | return -EIO; |
269 | } |
270 | |
271 | if (hdr & 0x04) { |
272 | struct sk_buff *skb; |
273 | unsigned char pkt_type; |
274 | int pkt_len = 0; |
275 | |
276 | if (data->reassembly) { |
277 | BT_ERR("%s unexpected start block" , data->hdev->name); |
278 | kfree_skb(data->reassembly); |
279 | data->reassembly = NULL; |
280 | } |
281 | |
282 | if (len < 1) { |
283 | BT_ERR("%s no packet type found" , data->hdev->name); |
284 | return -EPROTO; |
285 | } |
286 | |
287 | pkt_type = *buf++; len--; |
288 | |
289 | switch (pkt_type) { |
290 | case HCI_EVENT_PKT: |
291 | if (len >= HCI_EVENT_HDR_SIZE) { |
292 | struct hci_event_hdr *hdr = (struct hci_event_hdr *) buf; |
293 | pkt_len = HCI_EVENT_HDR_SIZE + hdr->plen; |
294 | } else { |
295 | BT_ERR("%s event block is too short" , data->hdev->name); |
296 | return -EILSEQ; |
297 | } |
298 | break; |
299 | |
300 | case HCI_ACLDATA_PKT: |
301 | if (len >= HCI_ACL_HDR_SIZE) { |
302 | struct hci_acl_hdr *hdr = (struct hci_acl_hdr *) buf; |
303 | pkt_len = HCI_ACL_HDR_SIZE + __le16_to_cpu(hdr->dlen); |
304 | } else { |
305 | BT_ERR("%s data block is too short" , data->hdev->name); |
306 | return -EILSEQ; |
307 | } |
308 | break; |
309 | |
310 | case HCI_SCODATA_PKT: |
311 | if (len >= HCI_SCO_HDR_SIZE) { |
312 | struct hci_sco_hdr *hdr = (struct hci_sco_hdr *) buf; |
313 | pkt_len = HCI_SCO_HDR_SIZE + hdr->dlen; |
314 | } else { |
315 | BT_ERR("%s audio block is too short" , data->hdev->name); |
316 | return -EILSEQ; |
317 | } |
318 | break; |
319 | } |
320 | |
321 | skb = bt_skb_alloc(pkt_len, GFP_ATOMIC); |
322 | if (!skb) { |
323 | BT_ERR("%s no memory for the packet" , data->hdev->name); |
324 | return -ENOMEM; |
325 | } |
326 | |
327 | hci_skb_pkt_type(skb) = pkt_type; |
328 | |
329 | data->reassembly = skb; |
330 | } else { |
331 | if (!data->reassembly) { |
332 | BT_ERR("%s unexpected continuation block" , data->hdev->name); |
333 | return -EIO; |
334 | } |
335 | } |
336 | |
337 | if (len > 0) |
338 | skb_put_data(data->reassembly, buf, len); |
339 | |
340 | if (hdr & 0x08) { |
341 | hci_recv_frame(data->hdev, data->reassembly); |
342 | data->reassembly = NULL; |
343 | } |
344 | |
345 | return 0; |
346 | } |
347 | |
348 | static void bfusb_rx_complete(struct urb *urb) |
349 | { |
350 | struct sk_buff *skb = (struct sk_buff *) urb->context; |
351 | struct bfusb_data *data = (struct bfusb_data *) skb->dev; |
352 | unsigned char *buf = urb->transfer_buffer; |
353 | int count = urb->actual_length; |
354 | int err, hdr, len; |
355 | |
356 | BT_DBG("bfusb %p urb %p skb %p len %d" , data, urb, skb, skb->len); |
357 | |
358 | read_lock(&data->lock); |
359 | |
360 | if (!test_bit(HCI_RUNNING, &data->hdev->flags)) |
361 | goto unlock; |
362 | |
363 | if (urb->status || !count) |
364 | goto resubmit; |
365 | |
366 | data->hdev->stat.byte_rx += count; |
367 | |
368 | skb_put(skb, count); |
369 | |
370 | while (count) { |
371 | hdr = buf[0] | (buf[1] << 8); |
372 | |
373 | if (hdr & 0x4000) { |
374 | len = 0; |
375 | count -= 2; |
376 | buf += 2; |
377 | } else { |
378 | len = (buf[2] == 0) ? 256 : buf[2]; |
379 | count -= 3; |
380 | buf += 3; |
381 | } |
382 | |
383 | if (count < len) { |
384 | BT_ERR("%s block extends over URB buffer ranges" , |
385 | data->hdev->name); |
386 | } |
387 | |
388 | if ((hdr & 0xe1) == 0xc1) |
389 | bfusb_recv_block(data, hdr, buf, len); |
390 | |
391 | count -= len; |
392 | buf += len; |
393 | } |
394 | |
395 | skb_unlink(skb, &data->pending_q); |
396 | kfree_skb(skb); |
397 | |
398 | bfusb_rx_submit(data, urb); |
399 | |
400 | read_unlock(&data->lock); |
401 | |
402 | return; |
403 | |
404 | resubmit: |
405 | urb->dev = data->udev; |
406 | |
407 | err = usb_submit_urb(urb, GFP_ATOMIC); |
408 | if (err) { |
409 | BT_ERR("%s bulk resubmit failed urb %p err %d" , |
410 | data->hdev->name, urb, err); |
411 | } |
412 | |
413 | unlock: |
414 | read_unlock(&data->lock); |
415 | } |
416 | |
417 | static int bfusb_open(struct hci_dev *hdev) |
418 | { |
419 | struct bfusb_data *data = hci_get_drvdata(hdev); |
420 | unsigned long flags; |
421 | int i, err; |
422 | |
423 | BT_DBG("hdev %p bfusb %p" , hdev, data); |
424 | |
425 | write_lock_irqsave(&data->lock, flags); |
426 | |
427 | err = bfusb_rx_submit(data, NULL); |
428 | if (!err) { |
429 | for (i = 1; i < BFUSB_MAX_BULK_RX; i++) |
430 | bfusb_rx_submit(data, NULL); |
431 | } |
432 | |
433 | write_unlock_irqrestore(&data->lock, flags); |
434 | |
435 | return err; |
436 | } |
437 | |
438 | static int bfusb_flush(struct hci_dev *hdev) |
439 | { |
440 | struct bfusb_data *data = hci_get_drvdata(hdev); |
441 | |
442 | BT_DBG("hdev %p bfusb %p" , hdev, data); |
443 | |
444 | skb_queue_purge(&data->transmit_q); |
445 | |
446 | return 0; |
447 | } |
448 | |
449 | static int bfusb_close(struct hci_dev *hdev) |
450 | { |
451 | struct bfusb_data *data = hci_get_drvdata(hdev); |
452 | unsigned long flags; |
453 | |
454 | BT_DBG("hdev %p bfusb %p" , hdev, data); |
455 | |
456 | write_lock_irqsave(&data->lock, flags); |
457 | write_unlock_irqrestore(&data->lock, flags); |
458 | |
459 | bfusb_unlink_urbs(data); |
460 | bfusb_flush(hdev); |
461 | |
462 | return 0; |
463 | } |
464 | |
465 | static int bfusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb) |
466 | { |
467 | struct bfusb_data *data = hci_get_drvdata(hdev); |
468 | struct sk_buff *nskb; |
469 | unsigned char buf[3]; |
470 | int sent = 0, size, count; |
471 | |
472 | BT_DBG("hdev %p skb %p type %d len %d" , hdev, skb, |
473 | hci_skb_pkt_type(skb), skb->len); |
474 | |
475 | switch (hci_skb_pkt_type(skb)) { |
476 | case HCI_COMMAND_PKT: |
477 | hdev->stat.cmd_tx++; |
478 | break; |
479 | case HCI_ACLDATA_PKT: |
480 | hdev->stat.acl_tx++; |
481 | break; |
482 | case HCI_SCODATA_PKT: |
483 | hdev->stat.sco_tx++; |
484 | break; |
485 | } |
486 | |
487 | /* Prepend skb with frame type */ |
488 | memcpy(skb_push(skb, 1), &hci_skb_pkt_type(skb), 1); |
489 | |
490 | count = skb->len; |
491 | |
492 | /* Max HCI frame size seems to be 1511 + 1 */ |
493 | nskb = bt_skb_alloc(count + 32, GFP_KERNEL); |
494 | if (!nskb) { |
495 | BT_ERR("Can't allocate memory for new packet" ); |
496 | return -ENOMEM; |
497 | } |
498 | |
499 | nskb->dev = (void *) data; |
500 | |
501 | while (count) { |
502 | size = min_t(uint, count, BFUSB_MAX_BLOCK_SIZE); |
503 | |
504 | buf[0] = 0xc1 | ((sent == 0) ? 0x04 : 0) | ((count == size) ? 0x08 : 0); |
505 | buf[1] = 0x00; |
506 | buf[2] = (size == BFUSB_MAX_BLOCK_SIZE) ? 0 : size; |
507 | |
508 | skb_put_data(nskb, buf, 3); |
509 | skb_copy_from_linear_data_offset(skb, sent, skb_put(nskb, size), size); |
510 | |
511 | sent += size; |
512 | count -= size; |
513 | } |
514 | |
515 | /* Don't send frame with multiple size of bulk max packet */ |
516 | if ((nskb->len % data->bulk_pkt_size) == 0) { |
517 | buf[0] = 0xdd; |
518 | buf[1] = 0x00; |
519 | skb_put_data(nskb, buf, 2); |
520 | } |
521 | |
522 | read_lock(&data->lock); |
523 | |
524 | skb_queue_tail(&data->transmit_q, nskb); |
525 | bfusb_tx_wakeup(data); |
526 | |
527 | read_unlock(&data->lock); |
528 | |
529 | kfree_skb(skb); |
530 | |
531 | return 0; |
532 | } |
533 | |
534 | static int bfusb_load_firmware(struct bfusb_data *data, |
535 | const unsigned char *firmware, int count) |
536 | { |
537 | unsigned char *buf; |
538 | int err, pipe, len, size, sent = 0; |
539 | |
540 | BT_DBG("bfusb %p udev %p" , data, data->udev); |
541 | |
542 | BT_INFO("BlueFRITZ! USB loading firmware" ); |
543 | |
544 | buf = kmalloc(BFUSB_MAX_BLOCK_SIZE + 3, GFP_KERNEL); |
545 | if (!buf) { |
546 | BT_ERR("Can't allocate memory chunk for firmware" ); |
547 | return -ENOMEM; |
548 | } |
549 | |
550 | pipe = usb_sndctrlpipe(data->udev, 0); |
551 | |
552 | if (usb_control_msg(data->udev, pipe, USB_REQ_SET_CONFIGURATION, |
553 | 0, 1, 0, NULL, 0, USB_CTRL_SET_TIMEOUT) < 0) { |
554 | BT_ERR("Can't change to loading configuration" ); |
555 | kfree(buf); |
556 | return -EBUSY; |
557 | } |
558 | |
559 | data->udev->toggle[0] = data->udev->toggle[1] = 0; |
560 | |
561 | pipe = usb_sndbulkpipe(data->udev, data->bulk_out_ep); |
562 | |
563 | while (count) { |
564 | size = min_t(uint, count, BFUSB_MAX_BLOCK_SIZE + 3); |
565 | |
566 | memcpy(buf, firmware + sent, size); |
567 | |
568 | err = usb_bulk_msg(data->udev, pipe, buf, size, |
569 | &len, BFUSB_BLOCK_TIMEOUT); |
570 | |
571 | if (err || (len != size)) { |
572 | BT_ERR("Error in firmware loading" ); |
573 | goto error; |
574 | } |
575 | |
576 | sent += size; |
577 | count -= size; |
578 | } |
579 | |
580 | err = usb_bulk_msg(data->udev, pipe, NULL, 0, |
581 | &len, BFUSB_BLOCK_TIMEOUT); |
582 | if (err < 0) { |
583 | BT_ERR("Error in null packet request" ); |
584 | goto error; |
585 | } |
586 | |
587 | pipe = usb_sndctrlpipe(data->udev, 0); |
588 | |
589 | err = usb_control_msg(data->udev, pipe, USB_REQ_SET_CONFIGURATION, |
590 | 0, 2, 0, NULL, 0, USB_CTRL_SET_TIMEOUT); |
591 | if (err < 0) { |
592 | BT_ERR("Can't change to running configuration" ); |
593 | goto error; |
594 | } |
595 | |
596 | data->udev->toggle[0] = data->udev->toggle[1] = 0; |
597 | |
598 | BT_INFO("BlueFRITZ! USB device ready" ); |
599 | |
600 | kfree(buf); |
601 | return 0; |
602 | |
603 | error: |
604 | kfree(buf); |
605 | |
606 | pipe = usb_sndctrlpipe(data->udev, 0); |
607 | |
608 | usb_control_msg(data->udev, pipe, USB_REQ_SET_CONFIGURATION, |
609 | 0, 0, 0, NULL, 0, USB_CTRL_SET_TIMEOUT); |
610 | |
611 | return err; |
612 | } |
613 | |
614 | static int bfusb_probe(struct usb_interface *intf, const struct usb_device_id *id) |
615 | { |
616 | const struct firmware *firmware; |
617 | struct usb_device *udev = interface_to_usbdev(intf); |
618 | struct usb_host_endpoint *bulk_out_ep; |
619 | struct usb_host_endpoint *bulk_in_ep; |
620 | struct hci_dev *hdev; |
621 | struct bfusb_data *data; |
622 | |
623 | BT_DBG("intf %p id %p" , intf, id); |
624 | |
625 | /* Check number of endpoints */ |
626 | if (intf->cur_altsetting->desc.bNumEndpoints < 2) |
627 | return -EIO; |
628 | |
629 | bulk_out_ep = &intf->cur_altsetting->endpoint[0]; |
630 | bulk_in_ep = &intf->cur_altsetting->endpoint[1]; |
631 | |
632 | if (!bulk_out_ep || !bulk_in_ep) { |
633 | BT_ERR("Bulk endpoints not found" ); |
634 | goto done; |
635 | } |
636 | |
637 | /* Initialize control structure and load firmware */ |
638 | data = devm_kzalloc(&intf->dev, sizeof(struct bfusb_data), GFP_KERNEL); |
639 | if (!data) |
640 | return -ENOMEM; |
641 | |
642 | data->udev = udev; |
643 | data->bulk_in_ep = bulk_in_ep->desc.bEndpointAddress; |
644 | data->bulk_out_ep = bulk_out_ep->desc.bEndpointAddress; |
645 | data->bulk_pkt_size = le16_to_cpu(bulk_out_ep->desc.wMaxPacketSize); |
646 | |
647 | rwlock_init(&data->lock); |
648 | |
649 | data->reassembly = NULL; |
650 | |
651 | skb_queue_head_init(&data->transmit_q); |
652 | skb_queue_head_init(&data->pending_q); |
653 | skb_queue_head_init(&data->completed_q); |
654 | |
655 | if (request_firmware(&firmware, "bfubase.frm" , &udev->dev) < 0) { |
656 | BT_ERR("Firmware request failed" ); |
657 | goto done; |
658 | } |
659 | |
660 | BT_DBG("firmware data %p size %zu" , firmware->data, firmware->size); |
661 | |
662 | if (bfusb_load_firmware(data, firmware->data, firmware->size) < 0) { |
663 | BT_ERR("Firmware loading failed" ); |
664 | goto release; |
665 | } |
666 | |
667 | release_firmware(firmware); |
668 | |
669 | /* Initialize and register HCI device */ |
670 | hdev = hci_alloc_dev(); |
671 | if (!hdev) { |
672 | BT_ERR("Can't allocate HCI device" ); |
673 | goto done; |
674 | } |
675 | |
676 | data->hdev = hdev; |
677 | |
678 | hdev->bus = HCI_USB; |
679 | hci_set_drvdata(hdev, data); |
680 | SET_HCIDEV_DEV(hdev, &intf->dev); |
681 | |
682 | hdev->open = bfusb_open; |
683 | hdev->close = bfusb_close; |
684 | hdev->flush = bfusb_flush; |
685 | hdev->send = bfusb_send_frame; |
686 | |
687 | set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks); |
688 | |
689 | if (hci_register_dev(hdev) < 0) { |
690 | BT_ERR("Can't register HCI device" ); |
691 | hci_free_dev(hdev); |
692 | goto done; |
693 | } |
694 | |
695 | usb_set_intfdata(intf, data); |
696 | |
697 | return 0; |
698 | |
699 | release: |
700 | release_firmware(firmware); |
701 | |
702 | done: |
703 | return -EIO; |
704 | } |
705 | |
706 | static void bfusb_disconnect(struct usb_interface *intf) |
707 | { |
708 | struct bfusb_data *data = usb_get_intfdata(intf); |
709 | struct hci_dev *hdev = data->hdev; |
710 | |
711 | BT_DBG("intf %p" , intf); |
712 | |
713 | if (!hdev) |
714 | return; |
715 | |
716 | usb_set_intfdata(intf, NULL); |
717 | |
718 | bfusb_close(hdev); |
719 | |
720 | hci_unregister_dev(hdev); |
721 | hci_free_dev(hdev); |
722 | } |
723 | |
724 | static struct usb_driver bfusb_driver = { |
725 | .name = "bfusb" , |
726 | .probe = bfusb_probe, |
727 | .disconnect = bfusb_disconnect, |
728 | .id_table = bfusb_table, |
729 | .disable_hub_initiated_lpm = 1, |
730 | }; |
731 | |
732 | module_usb_driver(bfusb_driver); |
733 | |
734 | MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>" ); |
735 | MODULE_DESCRIPTION("BlueFRITZ! USB driver ver " VERSION); |
736 | MODULE_VERSION(VERSION); |
737 | MODULE_LICENSE("GPL" ); |
738 | MODULE_FIRMWARE("bfubase.frm" ); |
739 | |