Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * | |
3 | * Digianswer Bluetooth USB driver | |
4 | * | |
5 | * Copyright (C) 2004-2005 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 | ||
1da177e4 LT |
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 | ||
32 | #include <linux/usb.h> | |
33 | ||
34 | #include <net/bluetooth/bluetooth.h> | |
35 | #include <net/bluetooth/hci_core.h> | |
36 | ||
37 | #ifndef CONFIG_BT_HCIBPA10X_DEBUG | |
38 | #undef BT_DBG | |
39 | #define BT_DBG(D...) | |
40 | #endif | |
41 | ||
42 | #define VERSION "0.8" | |
43 | ||
44 | static int ignore = 0; | |
45 | ||
46 | static struct usb_device_id bpa10x_table[] = { | |
47 | /* Tektronix BPA 100/105 (Digianswer) */ | |
48 | { USB_DEVICE(0x08fd, 0x0002) }, | |
49 | ||
50 | { } /* Terminating entry */ | |
51 | }; | |
52 | ||
53 | MODULE_DEVICE_TABLE(usb, bpa10x_table); | |
54 | ||
55 | #define BPA10X_CMD_EP 0x00 | |
56 | #define BPA10X_EVT_EP 0x81 | |
57 | #define BPA10X_TX_EP 0x02 | |
58 | #define BPA10X_RX_EP 0x82 | |
59 | ||
60 | #define BPA10X_CMD_BUF_SIZE 252 | |
61 | #define BPA10X_EVT_BUF_SIZE 16 | |
62 | #define BPA10X_TX_BUF_SIZE 384 | |
63 | #define BPA10X_RX_BUF_SIZE 384 | |
64 | ||
65 | struct bpa10x_data { | |
66 | struct hci_dev *hdev; | |
67 | struct usb_device *udev; | |
68 | ||
69 | rwlock_t lock; | |
70 | ||
71 | struct sk_buff_head cmd_queue; | |
72 | struct urb *cmd_urb; | |
73 | struct urb *evt_urb; | |
74 | struct sk_buff *evt_skb; | |
75 | unsigned int evt_len; | |
76 | ||
77 | struct sk_buff_head tx_queue; | |
78 | struct urb *tx_urb; | |
79 | struct urb *rx_urb; | |
80 | }; | |
81 | ||
82 | #define HCI_VENDOR_HDR_SIZE 5 | |
83 | ||
84 | struct hci_vendor_hdr { | |
85 | __u8 type; | |
1ebb9252 MH |
86 | __le16 snum; |
87 | __le16 dlen; | |
1da177e4 LT |
88 | } __attribute__ ((packed)); |
89 | ||
90 | static void bpa10x_recv_bulk(struct bpa10x_data *data, unsigned char *buf, int count) | |
91 | { | |
92 | struct hci_acl_hdr *ah; | |
93 | struct hci_sco_hdr *sh; | |
94 | struct hci_vendor_hdr *vh; | |
95 | struct sk_buff *skb; | |
96 | int len; | |
97 | ||
98 | while (count) { | |
99 | switch (*buf++) { | |
100 | case HCI_ACLDATA_PKT: | |
101 | ah = (struct hci_acl_hdr *) buf; | |
102 | len = HCI_ACL_HDR_SIZE + __le16_to_cpu(ah->dlen); | |
103 | skb = bt_skb_alloc(len, GFP_ATOMIC); | |
104 | if (skb) { | |
105 | memcpy(skb_put(skb, len), buf, len); | |
106 | skb->dev = (void *) data->hdev; | |
0d48d939 | 107 | bt_cb(skb)->pkt_type = HCI_ACLDATA_PKT; |
1da177e4 LT |
108 | hci_recv_frame(skb); |
109 | } | |
110 | break; | |
111 | ||
112 | case HCI_SCODATA_PKT: | |
113 | sh = (struct hci_sco_hdr *) buf; | |
114 | len = HCI_SCO_HDR_SIZE + sh->dlen; | |
115 | skb = bt_skb_alloc(len, GFP_ATOMIC); | |
116 | if (skb) { | |
117 | memcpy(skb_put(skb, len), buf, len); | |
118 | skb->dev = (void *) data->hdev; | |
0d48d939 | 119 | bt_cb(skb)->pkt_type = HCI_SCODATA_PKT; |
1da177e4 LT |
120 | hci_recv_frame(skb); |
121 | } | |
122 | break; | |
123 | ||
124 | case HCI_VENDOR_PKT: | |
125 | vh = (struct hci_vendor_hdr *) buf; | |
126 | len = HCI_VENDOR_HDR_SIZE + __le16_to_cpu(vh->dlen); | |
127 | skb = bt_skb_alloc(len, GFP_ATOMIC); | |
128 | if (skb) { | |
129 | memcpy(skb_put(skb, len), buf, len); | |
130 | skb->dev = (void *) data->hdev; | |
0d48d939 | 131 | bt_cb(skb)->pkt_type = HCI_VENDOR_PKT; |
1da177e4 LT |
132 | hci_recv_frame(skb); |
133 | } | |
134 | break; | |
135 | ||
136 | default: | |
137 | len = count - 1; | |
138 | break; | |
139 | } | |
140 | ||
141 | buf += len; | |
142 | count -= (len + 1); | |
143 | } | |
144 | } | |
145 | ||
146 | static int bpa10x_recv_event(struct bpa10x_data *data, unsigned char *buf, int size) | |
147 | { | |
148 | BT_DBG("data %p buf %p size %d", data, buf, size); | |
149 | ||
150 | if (data->evt_skb) { | |
151 | struct sk_buff *skb = data->evt_skb; | |
152 | ||
153 | memcpy(skb_put(skb, size), buf, size); | |
154 | ||
155 | if (skb->len == data->evt_len) { | |
156 | data->evt_skb = NULL; | |
157 | data->evt_len = 0; | |
158 | hci_recv_frame(skb); | |
159 | } | |
160 | } else { | |
161 | struct sk_buff *skb; | |
162 | struct hci_event_hdr *hdr; | |
163 | unsigned char pkt_type; | |
164 | int pkt_len = 0; | |
165 | ||
166 | if (size < HCI_EVENT_HDR_SIZE + 1) { | |
167 | BT_ERR("%s event packet block with size %d is too short", | |
168 | data->hdev->name, size); | |
169 | return -EILSEQ; | |
170 | } | |
171 | ||
172 | pkt_type = *buf++; | |
173 | size--; | |
174 | ||
175 | if (pkt_type != HCI_EVENT_PKT) { | |
176 | BT_ERR("%s unexpected event packet start byte 0x%02x", | |
177 | data->hdev->name, pkt_type); | |
178 | return -EPROTO; | |
179 | } | |
180 | ||
181 | hdr = (struct hci_event_hdr *) buf; | |
182 | pkt_len = HCI_EVENT_HDR_SIZE + hdr->plen; | |
183 | ||
184 | skb = bt_skb_alloc(pkt_len, GFP_ATOMIC); | |
185 | if (!skb) { | |
186 | BT_ERR("%s no memory for new event packet", | |
187 | data->hdev->name); | |
188 | return -ENOMEM; | |
189 | } | |
190 | ||
191 | skb->dev = (void *) data->hdev; | |
0d48d939 | 192 | bt_cb(skb)->pkt_type = pkt_type; |
1da177e4 LT |
193 | |
194 | memcpy(skb_put(skb, size), buf, size); | |
195 | ||
196 | if (pkt_len == size) { | |
197 | hci_recv_frame(skb); | |
198 | } else { | |
199 | data->evt_skb = skb; | |
200 | data->evt_len = pkt_len; | |
201 | } | |
202 | } | |
203 | ||
204 | return 0; | |
205 | } | |
206 | ||
207 | static void bpa10x_wakeup(struct bpa10x_data *data) | |
208 | { | |
209 | struct urb *urb; | |
210 | struct sk_buff *skb; | |
211 | int err; | |
212 | ||
213 | BT_DBG("data %p", data); | |
214 | ||
215 | urb = data->cmd_urb; | |
216 | if (urb->status == -EINPROGRESS) | |
217 | skb = NULL; | |
218 | else | |
219 | skb = skb_dequeue(&data->cmd_queue); | |
220 | ||
221 | if (skb) { | |
222 | struct usb_ctrlrequest *cr; | |
223 | ||
224 | if (skb->len > BPA10X_CMD_BUF_SIZE) { | |
225 | BT_ERR("%s command packet with size %d is too big", | |
226 | data->hdev->name, skb->len); | |
227 | kfree_skb(skb); | |
228 | return; | |
229 | } | |
230 | ||
231 | cr = (struct usb_ctrlrequest *) urb->setup_packet; | |
232 | cr->wLength = __cpu_to_le16(skb->len); | |
233 | ||
234 | memcpy(urb->transfer_buffer, skb->data, skb->len); | |
235 | urb->transfer_buffer_length = skb->len; | |
236 | ||
237 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
238 | if (err < 0 && err != -ENODEV) { | |
239 | BT_ERR("%s submit failed for command urb %p with error %d", | |
240 | data->hdev->name, urb, err); | |
241 | skb_queue_head(&data->cmd_queue, skb); | |
242 | } else | |
243 | kfree_skb(skb); | |
244 | } | |
245 | ||
246 | urb = data->tx_urb; | |
247 | if (urb->status == -EINPROGRESS) | |
248 | skb = NULL; | |
249 | else | |
250 | skb = skb_dequeue(&data->tx_queue); | |
251 | ||
252 | if (skb) { | |
253 | memcpy(urb->transfer_buffer, skb->data, skb->len); | |
254 | urb->transfer_buffer_length = skb->len; | |
255 | ||
256 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
257 | if (err < 0 && err != -ENODEV) { | |
258 | BT_ERR("%s submit failed for command urb %p with error %d", | |
259 | data->hdev->name, urb, err); | |
260 | skb_queue_head(&data->tx_queue, skb); | |
261 | } else | |
262 | kfree_skb(skb); | |
263 | } | |
264 | } | |
265 | ||
7d12e780 | 266 | static void bpa10x_complete(struct urb *urb) |
1da177e4 LT |
267 | { |
268 | struct bpa10x_data *data = urb->context; | |
269 | unsigned char *buf = urb->transfer_buffer; | |
270 | int err, count = urb->actual_length; | |
271 | ||
272 | BT_DBG("data %p urb %p buf %p count %d", data, urb, buf, count); | |
273 | ||
274 | read_lock(&data->lock); | |
275 | ||
276 | if (!test_bit(HCI_RUNNING, &data->hdev->flags)) | |
277 | goto unlock; | |
278 | ||
279 | if (urb->status < 0 || !count) | |
280 | goto resubmit; | |
281 | ||
282 | if (usb_pipein(urb->pipe)) { | |
283 | data->hdev->stat.byte_rx += count; | |
284 | ||
285 | if (usb_pipetype(urb->pipe) == PIPE_INTERRUPT) | |
286 | bpa10x_recv_event(data, buf, count); | |
287 | ||
288 | if (usb_pipetype(urb->pipe) == PIPE_BULK) | |
289 | bpa10x_recv_bulk(data, buf, count); | |
290 | } else { | |
291 | data->hdev->stat.byte_tx += count; | |
292 | ||
293 | bpa10x_wakeup(data); | |
294 | } | |
295 | ||
296 | resubmit: | |
297 | if (usb_pipein(urb->pipe)) { | |
298 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
299 | if (err < 0 && err != -ENODEV) { | |
300 | BT_ERR("%s urb %p type %d resubmit status %d", | |
301 | data->hdev->name, urb, usb_pipetype(urb->pipe), err); | |
302 | } | |
303 | } | |
304 | ||
305 | unlock: | |
306 | read_unlock(&data->lock); | |
307 | } | |
308 | ||
2eb25a6c | 309 | static inline struct urb *bpa10x_alloc_urb(struct usb_device *udev, unsigned int pipe, |
dd0fc66f | 310 | size_t size, gfp_t flags, void *data) |
1da177e4 LT |
311 | { |
312 | struct urb *urb; | |
313 | struct usb_ctrlrequest *cr; | |
314 | unsigned char *buf; | |
315 | ||
316 | BT_DBG("udev %p data %p", udev, data); | |
317 | ||
318 | urb = usb_alloc_urb(0, flags); | |
319 | if (!urb) | |
320 | return NULL; | |
321 | ||
322 | buf = kmalloc(size, flags); | |
323 | if (!buf) { | |
324 | usb_free_urb(urb); | |
325 | return NULL; | |
326 | } | |
327 | ||
328 | switch (usb_pipetype(pipe)) { | |
329 | case PIPE_CONTROL: | |
330 | cr = kmalloc(sizeof(*cr), flags); | |
331 | if (!cr) { | |
332 | kfree(buf); | |
333 | usb_free_urb(urb); | |
334 | return NULL; | |
335 | } | |
336 | ||
337 | cr->bRequestType = USB_TYPE_VENDOR; | |
338 | cr->bRequest = 0; | |
339 | cr->wIndex = 0; | |
340 | cr->wValue = 0; | |
341 | cr->wLength = __cpu_to_le16(0); | |
342 | ||
343 | usb_fill_control_urb(urb, udev, pipe, (void *) cr, buf, 0, bpa10x_complete, data); | |
344 | break; | |
345 | ||
346 | case PIPE_INTERRUPT: | |
347 | usb_fill_int_urb(urb, udev, pipe, buf, size, bpa10x_complete, data, 1); | |
348 | break; | |
349 | ||
350 | case PIPE_BULK: | |
351 | usb_fill_bulk_urb(urb, udev, pipe, buf, size, bpa10x_complete, data); | |
352 | break; | |
353 | ||
354 | default: | |
355 | kfree(buf); | |
356 | usb_free_urb(urb); | |
357 | return NULL; | |
358 | } | |
359 | ||
360 | return urb; | |
361 | } | |
362 | ||
363 | static inline void bpa10x_free_urb(struct urb *urb) | |
364 | { | |
365 | BT_DBG("urb %p", urb); | |
366 | ||
367 | if (!urb) | |
368 | return; | |
369 | ||
e9a3e671 MH |
370 | kfree(urb->setup_packet); |
371 | kfree(urb->transfer_buffer); | |
1da177e4 LT |
372 | |
373 | usb_free_urb(urb); | |
374 | } | |
375 | ||
376 | static int bpa10x_open(struct hci_dev *hdev) | |
377 | { | |
378 | struct bpa10x_data *data = hdev->driver_data; | |
379 | struct usb_device *udev = data->udev; | |
380 | unsigned long flags; | |
381 | int err; | |
382 | ||
383 | BT_DBG("hdev %p data %p", hdev, data); | |
384 | ||
385 | if (test_and_set_bit(HCI_RUNNING, &hdev->flags)) | |
386 | return 0; | |
387 | ||
388 | data->cmd_urb = bpa10x_alloc_urb(udev, usb_sndctrlpipe(udev, BPA10X_CMD_EP), | |
389 | BPA10X_CMD_BUF_SIZE, GFP_KERNEL, data); | |
390 | if (!data->cmd_urb) { | |
391 | err = -ENOMEM; | |
392 | goto done; | |
393 | } | |
394 | ||
395 | data->evt_urb = bpa10x_alloc_urb(udev, usb_rcvintpipe(udev, BPA10X_EVT_EP), | |
396 | BPA10X_EVT_BUF_SIZE, GFP_KERNEL, data); | |
397 | if (!data->evt_urb) { | |
398 | bpa10x_free_urb(data->cmd_urb); | |
399 | err = -ENOMEM; | |
400 | goto done; | |
401 | } | |
402 | ||
403 | data->rx_urb = bpa10x_alloc_urb(udev, usb_rcvbulkpipe(udev, BPA10X_RX_EP), | |
404 | BPA10X_RX_BUF_SIZE, GFP_KERNEL, data); | |
405 | if (!data->rx_urb) { | |
406 | bpa10x_free_urb(data->evt_urb); | |
407 | bpa10x_free_urb(data->cmd_urb); | |
408 | err = -ENOMEM; | |
409 | goto done; | |
410 | } | |
411 | ||
412 | data->tx_urb = bpa10x_alloc_urb(udev, usb_sndbulkpipe(udev, BPA10X_TX_EP), | |
413 | BPA10X_TX_BUF_SIZE, GFP_KERNEL, data); | |
414 | if (!data->rx_urb) { | |
415 | bpa10x_free_urb(data->rx_urb); | |
416 | bpa10x_free_urb(data->evt_urb); | |
417 | bpa10x_free_urb(data->cmd_urb); | |
418 | err = -ENOMEM; | |
419 | goto done; | |
420 | } | |
421 | ||
422 | write_lock_irqsave(&data->lock, flags); | |
423 | ||
424 | err = usb_submit_urb(data->evt_urb, GFP_ATOMIC); | |
425 | if (err < 0) { | |
426 | BT_ERR("%s submit failed for event urb %p with error %d", | |
427 | data->hdev->name, data->evt_urb, err); | |
428 | } else { | |
429 | err = usb_submit_urb(data->rx_urb, GFP_ATOMIC); | |
430 | if (err < 0) { | |
431 | BT_ERR("%s submit failed for rx urb %p with error %d", | |
432 | data->hdev->name, data->evt_urb, err); | |
433 | usb_kill_urb(data->evt_urb); | |
434 | } | |
435 | } | |
436 | ||
437 | write_unlock_irqrestore(&data->lock, flags); | |
438 | ||
439 | done: | |
440 | if (err < 0) | |
441 | clear_bit(HCI_RUNNING, &hdev->flags); | |
442 | ||
443 | return err; | |
444 | } | |
445 | ||
446 | static int bpa10x_close(struct hci_dev *hdev) | |
447 | { | |
448 | struct bpa10x_data *data = hdev->driver_data; | |
449 | unsigned long flags; | |
450 | ||
451 | BT_DBG("hdev %p data %p", hdev, data); | |
452 | ||
453 | if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags)) | |
454 | return 0; | |
455 | ||
456 | write_lock_irqsave(&data->lock, flags); | |
457 | ||
458 | skb_queue_purge(&data->cmd_queue); | |
459 | usb_kill_urb(data->cmd_urb); | |
460 | usb_kill_urb(data->evt_urb); | |
461 | usb_kill_urb(data->rx_urb); | |
462 | usb_kill_urb(data->tx_urb); | |
463 | ||
464 | write_unlock_irqrestore(&data->lock, flags); | |
465 | ||
466 | bpa10x_free_urb(data->cmd_urb); | |
467 | bpa10x_free_urb(data->evt_urb); | |
468 | bpa10x_free_urb(data->rx_urb); | |
469 | bpa10x_free_urb(data->tx_urb); | |
470 | ||
471 | return 0; | |
472 | } | |
473 | ||
474 | static int bpa10x_flush(struct hci_dev *hdev) | |
475 | { | |
476 | struct bpa10x_data *data = hdev->driver_data; | |
477 | ||
478 | BT_DBG("hdev %p data %p", hdev, data); | |
479 | ||
480 | skb_queue_purge(&data->cmd_queue); | |
481 | ||
482 | return 0; | |
483 | } | |
484 | ||
485 | static int bpa10x_send_frame(struct sk_buff *skb) | |
486 | { | |
487 | struct hci_dev *hdev = (struct hci_dev *) skb->dev; | |
488 | struct bpa10x_data *data; | |
489 | ||
0d48d939 | 490 | BT_DBG("hdev %p skb %p type %d len %d", hdev, skb, bt_cb(skb)->pkt_type, skb->len); |
1da177e4 LT |
491 | |
492 | if (!hdev) { | |
493 | BT_ERR("Frame for unknown HCI device"); | |
494 | return -ENODEV; | |
495 | } | |
496 | ||
497 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
498 | return -EBUSY; | |
499 | ||
500 | data = hdev->driver_data; | |
501 | ||
502 | /* Prepend skb with frame type */ | |
0d48d939 | 503 | memcpy(skb_push(skb, 1), &bt_cb(skb)->pkt_type, 1); |
1da177e4 | 504 | |
0d48d939 | 505 | switch (bt_cb(skb)->pkt_type) { |
1da177e4 LT |
506 | case HCI_COMMAND_PKT: |
507 | hdev->stat.cmd_tx++; | |
508 | skb_queue_tail(&data->cmd_queue, skb); | |
509 | break; | |
510 | ||
511 | case HCI_ACLDATA_PKT: | |
512 | hdev->stat.acl_tx++; | |
513 | skb_queue_tail(&data->tx_queue, skb); | |
514 | break; | |
515 | ||
516 | case HCI_SCODATA_PKT: | |
517 | hdev->stat.sco_tx++; | |
518 | skb_queue_tail(&data->tx_queue, skb); | |
519 | break; | |
520 | }; | |
521 | ||
522 | read_lock(&data->lock); | |
523 | ||
524 | bpa10x_wakeup(data); | |
525 | ||
526 | read_unlock(&data->lock); | |
527 | ||
528 | return 0; | |
529 | } | |
530 | ||
531 | static void bpa10x_destruct(struct hci_dev *hdev) | |
532 | { | |
533 | struct bpa10x_data *data = hdev->driver_data; | |
534 | ||
535 | BT_DBG("hdev %p data %p", hdev, data); | |
536 | ||
537 | kfree(data); | |
538 | } | |
539 | ||
540 | static int bpa10x_probe(struct usb_interface *intf, const struct usb_device_id *id) | |
541 | { | |
542 | struct usb_device *udev = interface_to_usbdev(intf); | |
543 | struct hci_dev *hdev; | |
544 | struct bpa10x_data *data; | |
545 | int err; | |
546 | ||
547 | BT_DBG("intf %p id %p", intf, id); | |
548 | ||
549 | if (ignore) | |
245dc3d1 MH |
550 | return -ENODEV; |
551 | ||
552 | if (intf->cur_altsetting->desc.bInterfaceNumber > 0) | |
1da177e4 LT |
553 | return -ENODEV; |
554 | ||
089b1dbb | 555 | data = kzalloc(sizeof(*data), GFP_KERNEL); |
1da177e4 LT |
556 | if (!data) { |
557 | BT_ERR("Can't allocate data structure"); | |
558 | return -ENOMEM; | |
559 | } | |
560 | ||
1da177e4 LT |
561 | data->udev = udev; |
562 | ||
563 | rwlock_init(&data->lock); | |
564 | ||
565 | skb_queue_head_init(&data->cmd_queue); | |
566 | skb_queue_head_init(&data->tx_queue); | |
567 | ||
568 | hdev = hci_alloc_dev(); | |
569 | if (!hdev) { | |
570 | BT_ERR("Can't allocate HCI device"); | |
571 | kfree(data); | |
572 | return -ENOMEM; | |
573 | } | |
574 | ||
575 | data->hdev = hdev; | |
576 | ||
577 | hdev->type = HCI_USB; | |
578 | hdev->driver_data = data; | |
579 | SET_HCIDEV_DEV(hdev, &intf->dev); | |
580 | ||
581 | hdev->open = bpa10x_open; | |
582 | hdev->close = bpa10x_close; | |
583 | hdev->flush = bpa10x_flush; | |
584 | hdev->send = bpa10x_send_frame; | |
585 | hdev->destruct = bpa10x_destruct; | |
586 | ||
587 | hdev->owner = THIS_MODULE; | |
588 | ||
589 | err = hci_register_dev(hdev); | |
590 | if (err < 0) { | |
591 | BT_ERR("Can't register HCI device"); | |
592 | kfree(data); | |
593 | hci_free_dev(hdev); | |
594 | return err; | |
595 | } | |
596 | ||
597 | usb_set_intfdata(intf, data); | |
598 | ||
599 | return 0; | |
600 | } | |
601 | ||
602 | static void bpa10x_disconnect(struct usb_interface *intf) | |
603 | { | |
604 | struct bpa10x_data *data = usb_get_intfdata(intf); | |
605 | struct hci_dev *hdev = data->hdev; | |
606 | ||
607 | BT_DBG("intf %p", intf); | |
608 | ||
609 | if (!hdev) | |
610 | return; | |
611 | ||
612 | usb_set_intfdata(intf, NULL); | |
613 | ||
614 | if (hci_unregister_dev(hdev) < 0) | |
615 | BT_ERR("Can't unregister HCI device %s", hdev->name); | |
616 | ||
617 | hci_free_dev(hdev); | |
618 | } | |
619 | ||
620 | static struct usb_driver bpa10x_driver = { | |
1da177e4 LT |
621 | .name = "bpa10x", |
622 | .probe = bpa10x_probe, | |
623 | .disconnect = bpa10x_disconnect, | |
624 | .id_table = bpa10x_table, | |
625 | }; | |
626 | ||
627 | static int __init bpa10x_init(void) | |
628 | { | |
629 | int err; | |
630 | ||
631 | BT_INFO("Digianswer Bluetooth USB driver ver %s", VERSION); | |
632 | ||
633 | err = usb_register(&bpa10x_driver); | |
634 | if (err < 0) | |
635 | BT_ERR("Failed to register USB driver"); | |
636 | ||
637 | return err; | |
638 | } | |
639 | ||
640 | static void __exit bpa10x_exit(void) | |
641 | { | |
642 | usb_deregister(&bpa10x_driver); | |
643 | } | |
644 | ||
645 | module_init(bpa10x_init); | |
646 | module_exit(bpa10x_exit); | |
647 | ||
648 | module_param(ignore, bool, 0644); | |
649 | MODULE_PARM_DESC(ignore, "Ignore devices from the matching table"); | |
650 | ||
651 | MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); | |
652 | MODULE_DESCRIPTION("Digianswer Bluetooth USB driver ver " VERSION); | |
653 | MODULE_VERSION(VERSION); | |
654 | MODULE_LICENSE("GPL"); |