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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 | ||
24 | #include <linux/config.h> | |
25 | #include <linux/module.h> | |
26 | ||
27 | #include <linux/kernel.h> | |
28 | #include <linux/init.h> | |
29 | #include <linux/slab.h> | |
30 | #include <linux/types.h> | |
31 | #include <linux/errno.h> | |
32 | ||
33 | #include <linux/usb.h> | |
34 | ||
35 | #include <net/bluetooth/bluetooth.h> | |
36 | #include <net/bluetooth/hci_core.h> | |
37 | ||
38 | #ifndef CONFIG_BT_HCIBPA10X_DEBUG | |
39 | #undef BT_DBG | |
40 | #define BT_DBG(D...) | |
41 | #endif | |
42 | ||
43 | #define VERSION "0.8" | |
44 | ||
45 | static int ignore = 0; | |
46 | ||
47 | static struct usb_device_id bpa10x_table[] = { | |
48 | /* Tektronix BPA 100/105 (Digianswer) */ | |
49 | { USB_DEVICE(0x08fd, 0x0002) }, | |
50 | ||
51 | { } /* Terminating entry */ | |
52 | }; | |
53 | ||
54 | MODULE_DEVICE_TABLE(usb, bpa10x_table); | |
55 | ||
56 | #define BPA10X_CMD_EP 0x00 | |
57 | #define BPA10X_EVT_EP 0x81 | |
58 | #define BPA10X_TX_EP 0x02 | |
59 | #define BPA10X_RX_EP 0x82 | |
60 | ||
61 | #define BPA10X_CMD_BUF_SIZE 252 | |
62 | #define BPA10X_EVT_BUF_SIZE 16 | |
63 | #define BPA10X_TX_BUF_SIZE 384 | |
64 | #define BPA10X_RX_BUF_SIZE 384 | |
65 | ||
66 | struct bpa10x_data { | |
67 | struct hci_dev *hdev; | |
68 | struct usb_device *udev; | |
69 | ||
70 | rwlock_t lock; | |
71 | ||
72 | struct sk_buff_head cmd_queue; | |
73 | struct urb *cmd_urb; | |
74 | struct urb *evt_urb; | |
75 | struct sk_buff *evt_skb; | |
76 | unsigned int evt_len; | |
77 | ||
78 | struct sk_buff_head tx_queue; | |
79 | struct urb *tx_urb; | |
80 | struct urb *rx_urb; | |
81 | }; | |
82 | ||
83 | #define HCI_VENDOR_HDR_SIZE 5 | |
84 | ||
85 | struct hci_vendor_hdr { | |
86 | __u8 type; | |
1ebb9252 MH |
87 | __le16 snum; |
88 | __le16 dlen; | |
1da177e4 LT |
89 | } __attribute__ ((packed)); |
90 | ||
91 | static void bpa10x_recv_bulk(struct bpa10x_data *data, unsigned char *buf, int count) | |
92 | { | |
93 | struct hci_acl_hdr *ah; | |
94 | struct hci_sco_hdr *sh; | |
95 | struct hci_vendor_hdr *vh; | |
96 | struct sk_buff *skb; | |
97 | int len; | |
98 | ||
99 | while (count) { | |
100 | switch (*buf++) { | |
101 | case HCI_ACLDATA_PKT: | |
102 | ah = (struct hci_acl_hdr *) buf; | |
103 | len = HCI_ACL_HDR_SIZE + __le16_to_cpu(ah->dlen); | |
104 | skb = bt_skb_alloc(len, GFP_ATOMIC); | |
105 | if (skb) { | |
106 | memcpy(skb_put(skb, len), buf, len); | |
107 | skb->dev = (void *) data->hdev; | |
0d48d939 | 108 | bt_cb(skb)->pkt_type = HCI_ACLDATA_PKT; |
1da177e4 LT |
109 | hci_recv_frame(skb); |
110 | } | |
111 | break; | |
112 | ||
113 | case HCI_SCODATA_PKT: | |
114 | sh = (struct hci_sco_hdr *) buf; | |
115 | len = HCI_SCO_HDR_SIZE + sh->dlen; | |
116 | skb = bt_skb_alloc(len, GFP_ATOMIC); | |
117 | if (skb) { | |
118 | memcpy(skb_put(skb, len), buf, len); | |
119 | skb->dev = (void *) data->hdev; | |
0d48d939 | 120 | bt_cb(skb)->pkt_type = HCI_SCODATA_PKT; |
1da177e4 LT |
121 | hci_recv_frame(skb); |
122 | } | |
123 | break; | |
124 | ||
125 | case HCI_VENDOR_PKT: | |
126 | vh = (struct hci_vendor_hdr *) buf; | |
127 | len = HCI_VENDOR_HDR_SIZE + __le16_to_cpu(vh->dlen); | |
128 | skb = bt_skb_alloc(len, GFP_ATOMIC); | |
129 | if (skb) { | |
130 | memcpy(skb_put(skb, len), buf, len); | |
131 | skb->dev = (void *) data->hdev; | |
0d48d939 | 132 | bt_cb(skb)->pkt_type = HCI_VENDOR_PKT; |
1da177e4 LT |
133 | hci_recv_frame(skb); |
134 | } | |
135 | break; | |
136 | ||
137 | default: | |
138 | len = count - 1; | |
139 | break; | |
140 | } | |
141 | ||
142 | buf += len; | |
143 | count -= (len + 1); | |
144 | } | |
145 | } | |
146 | ||
147 | static int bpa10x_recv_event(struct bpa10x_data *data, unsigned char *buf, int size) | |
148 | { | |
149 | BT_DBG("data %p buf %p size %d", data, buf, size); | |
150 | ||
151 | if (data->evt_skb) { | |
152 | struct sk_buff *skb = data->evt_skb; | |
153 | ||
154 | memcpy(skb_put(skb, size), buf, size); | |
155 | ||
156 | if (skb->len == data->evt_len) { | |
157 | data->evt_skb = NULL; | |
158 | data->evt_len = 0; | |
159 | hci_recv_frame(skb); | |
160 | } | |
161 | } else { | |
162 | struct sk_buff *skb; | |
163 | struct hci_event_hdr *hdr; | |
164 | unsigned char pkt_type; | |
165 | int pkt_len = 0; | |
166 | ||
167 | if (size < HCI_EVENT_HDR_SIZE + 1) { | |
168 | BT_ERR("%s event packet block with size %d is too short", | |
169 | data->hdev->name, size); | |
170 | return -EILSEQ; | |
171 | } | |
172 | ||
173 | pkt_type = *buf++; | |
174 | size--; | |
175 | ||
176 | if (pkt_type != HCI_EVENT_PKT) { | |
177 | BT_ERR("%s unexpected event packet start byte 0x%02x", | |
178 | data->hdev->name, pkt_type); | |
179 | return -EPROTO; | |
180 | } | |
181 | ||
182 | hdr = (struct hci_event_hdr *) buf; | |
183 | pkt_len = HCI_EVENT_HDR_SIZE + hdr->plen; | |
184 | ||
185 | skb = bt_skb_alloc(pkt_len, GFP_ATOMIC); | |
186 | if (!skb) { | |
187 | BT_ERR("%s no memory for new event packet", | |
188 | data->hdev->name); | |
189 | return -ENOMEM; | |
190 | } | |
191 | ||
192 | skb->dev = (void *) data->hdev; | |
0d48d939 | 193 | bt_cb(skb)->pkt_type = pkt_type; |
1da177e4 LT |
194 | |
195 | memcpy(skb_put(skb, size), buf, size); | |
196 | ||
197 | if (pkt_len == size) { | |
198 | hci_recv_frame(skb); | |
199 | } else { | |
200 | data->evt_skb = skb; | |
201 | data->evt_len = pkt_len; | |
202 | } | |
203 | } | |
204 | ||
205 | return 0; | |
206 | } | |
207 | ||
208 | static void bpa10x_wakeup(struct bpa10x_data *data) | |
209 | { | |
210 | struct urb *urb; | |
211 | struct sk_buff *skb; | |
212 | int err; | |
213 | ||
214 | BT_DBG("data %p", data); | |
215 | ||
216 | urb = data->cmd_urb; | |
217 | if (urb->status == -EINPROGRESS) | |
218 | skb = NULL; | |
219 | else | |
220 | skb = skb_dequeue(&data->cmd_queue); | |
221 | ||
222 | if (skb) { | |
223 | struct usb_ctrlrequest *cr; | |
224 | ||
225 | if (skb->len > BPA10X_CMD_BUF_SIZE) { | |
226 | BT_ERR("%s command packet with size %d is too big", | |
227 | data->hdev->name, skb->len); | |
228 | kfree_skb(skb); | |
229 | return; | |
230 | } | |
231 | ||
232 | cr = (struct usb_ctrlrequest *) urb->setup_packet; | |
233 | cr->wLength = __cpu_to_le16(skb->len); | |
234 | ||
235 | memcpy(urb->transfer_buffer, skb->data, skb->len); | |
236 | urb->transfer_buffer_length = skb->len; | |
237 | ||
238 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
239 | if (err < 0 && err != -ENODEV) { | |
240 | BT_ERR("%s submit failed for command urb %p with error %d", | |
241 | data->hdev->name, urb, err); | |
242 | skb_queue_head(&data->cmd_queue, skb); | |
243 | } else | |
244 | kfree_skb(skb); | |
245 | } | |
246 | ||
247 | urb = data->tx_urb; | |
248 | if (urb->status == -EINPROGRESS) | |
249 | skb = NULL; | |
250 | else | |
251 | skb = skb_dequeue(&data->tx_queue); | |
252 | ||
253 | if (skb) { | |
254 | memcpy(urb->transfer_buffer, skb->data, skb->len); | |
255 | urb->transfer_buffer_length = skb->len; | |
256 | ||
257 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
258 | if (err < 0 && err != -ENODEV) { | |
259 | BT_ERR("%s submit failed for command urb %p with error %d", | |
260 | data->hdev->name, urb, err); | |
261 | skb_queue_head(&data->tx_queue, skb); | |
262 | } else | |
263 | kfree_skb(skb); | |
264 | } | |
265 | } | |
266 | ||
267 | static void bpa10x_complete(struct urb *urb, struct pt_regs *regs) | |
268 | { | |
269 | struct bpa10x_data *data = urb->context; | |
270 | unsigned char *buf = urb->transfer_buffer; | |
271 | int err, count = urb->actual_length; | |
272 | ||
273 | BT_DBG("data %p urb %p buf %p count %d", data, urb, buf, count); | |
274 | ||
275 | read_lock(&data->lock); | |
276 | ||
277 | if (!test_bit(HCI_RUNNING, &data->hdev->flags)) | |
278 | goto unlock; | |
279 | ||
280 | if (urb->status < 0 || !count) | |
281 | goto resubmit; | |
282 | ||
283 | if (usb_pipein(urb->pipe)) { | |
284 | data->hdev->stat.byte_rx += count; | |
285 | ||
286 | if (usb_pipetype(urb->pipe) == PIPE_INTERRUPT) | |
287 | bpa10x_recv_event(data, buf, count); | |
288 | ||
289 | if (usb_pipetype(urb->pipe) == PIPE_BULK) | |
290 | bpa10x_recv_bulk(data, buf, count); | |
291 | } else { | |
292 | data->hdev->stat.byte_tx += count; | |
293 | ||
294 | bpa10x_wakeup(data); | |
295 | } | |
296 | ||
297 | resubmit: | |
298 | if (usb_pipein(urb->pipe)) { | |
299 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
300 | if (err < 0 && err != -ENODEV) { | |
301 | BT_ERR("%s urb %p type %d resubmit status %d", | |
302 | data->hdev->name, urb, usb_pipetype(urb->pipe), err); | |
303 | } | |
304 | } | |
305 | ||
306 | unlock: | |
307 | read_unlock(&data->lock); | |
308 | } | |
309 | ||
2eb25a6c | 310 | static inline struct urb *bpa10x_alloc_urb(struct usb_device *udev, unsigned int pipe, |
dd0fc66f | 311 | size_t size, gfp_t flags, void *data) |
1da177e4 LT |
312 | { |
313 | struct urb *urb; | |
314 | struct usb_ctrlrequest *cr; | |
315 | unsigned char *buf; | |
316 | ||
317 | BT_DBG("udev %p data %p", udev, data); | |
318 | ||
319 | urb = usb_alloc_urb(0, flags); | |
320 | if (!urb) | |
321 | return NULL; | |
322 | ||
323 | buf = kmalloc(size, flags); | |
324 | if (!buf) { | |
325 | usb_free_urb(urb); | |
326 | return NULL; | |
327 | } | |
328 | ||
329 | switch (usb_pipetype(pipe)) { | |
330 | case PIPE_CONTROL: | |
331 | cr = kmalloc(sizeof(*cr), flags); | |
332 | if (!cr) { | |
333 | kfree(buf); | |
334 | usb_free_urb(urb); | |
335 | return NULL; | |
336 | } | |
337 | ||
338 | cr->bRequestType = USB_TYPE_VENDOR; | |
339 | cr->bRequest = 0; | |
340 | cr->wIndex = 0; | |
341 | cr->wValue = 0; | |
342 | cr->wLength = __cpu_to_le16(0); | |
343 | ||
344 | usb_fill_control_urb(urb, udev, pipe, (void *) cr, buf, 0, bpa10x_complete, data); | |
345 | break; | |
346 | ||
347 | case PIPE_INTERRUPT: | |
348 | usb_fill_int_urb(urb, udev, pipe, buf, size, bpa10x_complete, data, 1); | |
349 | break; | |
350 | ||
351 | case PIPE_BULK: | |
352 | usb_fill_bulk_urb(urb, udev, pipe, buf, size, bpa10x_complete, data); | |
353 | break; | |
354 | ||
355 | default: | |
356 | kfree(buf); | |
357 | usb_free_urb(urb); | |
358 | return NULL; | |
359 | } | |
360 | ||
361 | return urb; | |
362 | } | |
363 | ||
364 | static inline void bpa10x_free_urb(struct urb *urb) | |
365 | { | |
366 | BT_DBG("urb %p", urb); | |
367 | ||
368 | if (!urb) | |
369 | return; | |
370 | ||
e9a3e671 MH |
371 | kfree(urb->setup_packet); |
372 | kfree(urb->transfer_buffer); | |
1da177e4 LT |
373 | |
374 | usb_free_urb(urb); | |
375 | } | |
376 | ||
377 | static int bpa10x_open(struct hci_dev *hdev) | |
378 | { | |
379 | struct bpa10x_data *data = hdev->driver_data; | |
380 | struct usb_device *udev = data->udev; | |
381 | unsigned long flags; | |
382 | int err; | |
383 | ||
384 | BT_DBG("hdev %p data %p", hdev, data); | |
385 | ||
386 | if (test_and_set_bit(HCI_RUNNING, &hdev->flags)) | |
387 | return 0; | |
388 | ||
389 | data->cmd_urb = bpa10x_alloc_urb(udev, usb_sndctrlpipe(udev, BPA10X_CMD_EP), | |
390 | BPA10X_CMD_BUF_SIZE, GFP_KERNEL, data); | |
391 | if (!data->cmd_urb) { | |
392 | err = -ENOMEM; | |
393 | goto done; | |
394 | } | |
395 | ||
396 | data->evt_urb = bpa10x_alloc_urb(udev, usb_rcvintpipe(udev, BPA10X_EVT_EP), | |
397 | BPA10X_EVT_BUF_SIZE, GFP_KERNEL, data); | |
398 | if (!data->evt_urb) { | |
399 | bpa10x_free_urb(data->cmd_urb); | |
400 | err = -ENOMEM; | |
401 | goto done; | |
402 | } | |
403 | ||
404 | data->rx_urb = bpa10x_alloc_urb(udev, usb_rcvbulkpipe(udev, BPA10X_RX_EP), | |
405 | BPA10X_RX_BUF_SIZE, GFP_KERNEL, data); | |
406 | if (!data->rx_urb) { | |
407 | bpa10x_free_urb(data->evt_urb); | |
408 | bpa10x_free_urb(data->cmd_urb); | |
409 | err = -ENOMEM; | |
410 | goto done; | |
411 | } | |
412 | ||
413 | data->tx_urb = bpa10x_alloc_urb(udev, usb_sndbulkpipe(udev, BPA10X_TX_EP), | |
414 | BPA10X_TX_BUF_SIZE, GFP_KERNEL, data); | |
415 | if (!data->rx_urb) { | |
416 | bpa10x_free_urb(data->rx_urb); | |
417 | bpa10x_free_urb(data->evt_urb); | |
418 | bpa10x_free_urb(data->cmd_urb); | |
419 | err = -ENOMEM; | |
420 | goto done; | |
421 | } | |
422 | ||
423 | write_lock_irqsave(&data->lock, flags); | |
424 | ||
425 | err = usb_submit_urb(data->evt_urb, GFP_ATOMIC); | |
426 | if (err < 0) { | |
427 | BT_ERR("%s submit failed for event urb %p with error %d", | |
428 | data->hdev->name, data->evt_urb, err); | |
429 | } else { | |
430 | err = usb_submit_urb(data->rx_urb, GFP_ATOMIC); | |
431 | if (err < 0) { | |
432 | BT_ERR("%s submit failed for rx urb %p with error %d", | |
433 | data->hdev->name, data->evt_urb, err); | |
434 | usb_kill_urb(data->evt_urb); | |
435 | } | |
436 | } | |
437 | ||
438 | write_unlock_irqrestore(&data->lock, flags); | |
439 | ||
440 | done: | |
441 | if (err < 0) | |
442 | clear_bit(HCI_RUNNING, &hdev->flags); | |
443 | ||
444 | return err; | |
445 | } | |
446 | ||
447 | static int bpa10x_close(struct hci_dev *hdev) | |
448 | { | |
449 | struct bpa10x_data *data = hdev->driver_data; | |
450 | unsigned long flags; | |
451 | ||
452 | BT_DBG("hdev %p data %p", hdev, data); | |
453 | ||
454 | if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags)) | |
455 | return 0; | |
456 | ||
457 | write_lock_irqsave(&data->lock, flags); | |
458 | ||
459 | skb_queue_purge(&data->cmd_queue); | |
460 | usb_kill_urb(data->cmd_urb); | |
461 | usb_kill_urb(data->evt_urb); | |
462 | usb_kill_urb(data->rx_urb); | |
463 | usb_kill_urb(data->tx_urb); | |
464 | ||
465 | write_unlock_irqrestore(&data->lock, flags); | |
466 | ||
467 | bpa10x_free_urb(data->cmd_urb); | |
468 | bpa10x_free_urb(data->evt_urb); | |
469 | bpa10x_free_urb(data->rx_urb); | |
470 | bpa10x_free_urb(data->tx_urb); | |
471 | ||
472 | return 0; | |
473 | } | |
474 | ||
475 | static int bpa10x_flush(struct hci_dev *hdev) | |
476 | { | |
477 | struct bpa10x_data *data = hdev->driver_data; | |
478 | ||
479 | BT_DBG("hdev %p data %p", hdev, data); | |
480 | ||
481 | skb_queue_purge(&data->cmd_queue); | |
482 | ||
483 | return 0; | |
484 | } | |
485 | ||
486 | static int bpa10x_send_frame(struct sk_buff *skb) | |
487 | { | |
488 | struct hci_dev *hdev = (struct hci_dev *) skb->dev; | |
489 | struct bpa10x_data *data; | |
490 | ||
0d48d939 | 491 | BT_DBG("hdev %p skb %p type %d len %d", hdev, skb, bt_cb(skb)->pkt_type, skb->len); |
1da177e4 LT |
492 | |
493 | if (!hdev) { | |
494 | BT_ERR("Frame for unknown HCI device"); | |
495 | return -ENODEV; | |
496 | } | |
497 | ||
498 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
499 | return -EBUSY; | |
500 | ||
501 | data = hdev->driver_data; | |
502 | ||
503 | /* Prepend skb with frame type */ | |
0d48d939 | 504 | memcpy(skb_push(skb, 1), &bt_cb(skb)->pkt_type, 1); |
1da177e4 | 505 | |
0d48d939 | 506 | switch (bt_cb(skb)->pkt_type) { |
1da177e4 LT |
507 | case HCI_COMMAND_PKT: |
508 | hdev->stat.cmd_tx++; | |
509 | skb_queue_tail(&data->cmd_queue, skb); | |
510 | break; | |
511 | ||
512 | case HCI_ACLDATA_PKT: | |
513 | hdev->stat.acl_tx++; | |
514 | skb_queue_tail(&data->tx_queue, skb); | |
515 | break; | |
516 | ||
517 | case HCI_SCODATA_PKT: | |
518 | hdev->stat.sco_tx++; | |
519 | skb_queue_tail(&data->tx_queue, skb); | |
520 | break; | |
521 | }; | |
522 | ||
523 | read_lock(&data->lock); | |
524 | ||
525 | bpa10x_wakeup(data); | |
526 | ||
527 | read_unlock(&data->lock); | |
528 | ||
529 | return 0; | |
530 | } | |
531 | ||
532 | static void bpa10x_destruct(struct hci_dev *hdev) | |
533 | { | |
534 | struct bpa10x_data *data = hdev->driver_data; | |
535 | ||
536 | BT_DBG("hdev %p data %p", hdev, data); | |
537 | ||
538 | kfree(data); | |
539 | } | |
540 | ||
541 | static int bpa10x_probe(struct usb_interface *intf, const struct usb_device_id *id) | |
542 | { | |
543 | struct usb_device *udev = interface_to_usbdev(intf); | |
544 | struct hci_dev *hdev; | |
545 | struct bpa10x_data *data; | |
546 | int err; | |
547 | ||
548 | BT_DBG("intf %p id %p", intf, id); | |
549 | ||
550 | if (ignore) | |
245dc3d1 MH |
551 | return -ENODEV; |
552 | ||
553 | if (intf->cur_altsetting->desc.bInterfaceNumber > 0) | |
1da177e4 LT |
554 | return -ENODEV; |
555 | ||
089b1dbb | 556 | data = kzalloc(sizeof(*data), GFP_KERNEL); |
1da177e4 LT |
557 | if (!data) { |
558 | BT_ERR("Can't allocate data structure"); | |
559 | return -ENOMEM; | |
560 | } | |
561 | ||
1da177e4 LT |
562 | data->udev = udev; |
563 | ||
564 | rwlock_init(&data->lock); | |
565 | ||
566 | skb_queue_head_init(&data->cmd_queue); | |
567 | skb_queue_head_init(&data->tx_queue); | |
568 | ||
569 | hdev = hci_alloc_dev(); | |
570 | if (!hdev) { | |
571 | BT_ERR("Can't allocate HCI device"); | |
572 | kfree(data); | |
573 | return -ENOMEM; | |
574 | } | |
575 | ||
576 | data->hdev = hdev; | |
577 | ||
578 | hdev->type = HCI_USB; | |
579 | hdev->driver_data = data; | |
580 | SET_HCIDEV_DEV(hdev, &intf->dev); | |
581 | ||
582 | hdev->open = bpa10x_open; | |
583 | hdev->close = bpa10x_close; | |
584 | hdev->flush = bpa10x_flush; | |
585 | hdev->send = bpa10x_send_frame; | |
586 | hdev->destruct = bpa10x_destruct; | |
587 | ||
588 | hdev->owner = THIS_MODULE; | |
589 | ||
590 | err = hci_register_dev(hdev); | |
591 | if (err < 0) { | |
592 | BT_ERR("Can't register HCI device"); | |
593 | kfree(data); | |
594 | hci_free_dev(hdev); | |
595 | return err; | |
596 | } | |
597 | ||
598 | usb_set_intfdata(intf, data); | |
599 | ||
600 | return 0; | |
601 | } | |
602 | ||
603 | static void bpa10x_disconnect(struct usb_interface *intf) | |
604 | { | |
605 | struct bpa10x_data *data = usb_get_intfdata(intf); | |
606 | struct hci_dev *hdev = data->hdev; | |
607 | ||
608 | BT_DBG("intf %p", intf); | |
609 | ||
610 | if (!hdev) | |
611 | return; | |
612 | ||
613 | usb_set_intfdata(intf, NULL); | |
614 | ||
615 | if (hci_unregister_dev(hdev) < 0) | |
616 | BT_ERR("Can't unregister HCI device %s", hdev->name); | |
617 | ||
618 | hci_free_dev(hdev); | |
619 | } | |
620 | ||
621 | static struct usb_driver bpa10x_driver = { | |
1da177e4 LT |
622 | .name = "bpa10x", |
623 | .probe = bpa10x_probe, | |
624 | .disconnect = bpa10x_disconnect, | |
625 | .id_table = bpa10x_table, | |
626 | }; | |
627 | ||
628 | static int __init bpa10x_init(void) | |
629 | { | |
630 | int err; | |
631 | ||
632 | BT_INFO("Digianswer Bluetooth USB driver ver %s", VERSION); | |
633 | ||
634 | err = usb_register(&bpa10x_driver); | |
635 | if (err < 0) | |
636 | BT_ERR("Failed to register USB driver"); | |
637 | ||
638 | return err; | |
639 | } | |
640 | ||
641 | static void __exit bpa10x_exit(void) | |
642 | { | |
643 | usb_deregister(&bpa10x_driver); | |
644 | } | |
645 | ||
646 | module_init(bpa10x_init); | |
647 | module_exit(bpa10x_exit); | |
648 | ||
649 | module_param(ignore, bool, 0644); | |
650 | MODULE_PARM_DESC(ignore, "Ignore devices from the matching table"); | |
651 | ||
652 | MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); | |
653 | MODULE_DESCRIPTION("Digianswer Bluetooth USB driver ver " VERSION); | |
654 | MODULE_VERSION(VERSION); | |
655 | MODULE_LICENSE("GPL"); |