]> git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/blame - drivers/bluetooth/btusb.c
projects / mirror_ubuntu-bionic-kernel.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Bluetooth: Introduce to_hci_dev()
[mirror_ubuntu-bionic-kernel.git] / drivers / bluetooth / btusb.c
CommitLineData
5e23b923
MH		 1/*
2 *
3 * Generic Bluetooth USB driver
4 *
9bfa35fe 5 * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org>
5e23b923
MH		 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/kernel.h>
25#include <linux/module.h>
26#include <linux/init.h>
27#include <linux/slab.h>
28#include <linux/types.h>
29#include <linux/sched.h>
30#include <linux/errno.h>
31#include <linux/skbuff.h>
32
33#include <linux/usb.h>
34
35#include <net/bluetooth/bluetooth.h>
36#include <net/bluetooth/hci_core.h>
37
7bee549e 38#define VERSION "0.6"
cfeb4145
MH		 39
40static int ignore_dga;
41static int ignore_csr;
42static int ignore_sniffer;
43static int disable_scofix;
44static int force_scofix;
7a9d4020
MH		 45
46static int reset = 1;
cfeb4145
MH		 47
48static struct usb_driver btusb_driver;
49
50#define BTUSB_IGNORE 0x01
7a9d4020
MH		 51#define BTUSB_DIGIANSWER 0x02
52#define BTUSB_CSR 0x04
53#define BTUSB_SNIFFER 0x08
54#define BTUSB_BCM92035 0x10
55#define BTUSB_BROKEN_ISOC 0x20
56#define BTUSB_WRONG_SCO_MTU 0x40
2d25f8b4 57#define BTUSB_ATH3012 0x80
5e23b923
MH		 58
59static struct usb_device_id btusb_table[] = {
60 /* Generic Bluetooth USB device */
61 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
62
c510eae3
ON		 63 /* Broadcom SoftSailing reporting vendor specific */
64 { USB_DEVICE(0x05ac, 0x21e1) },
65
3cd01976
NI		 66 /* Apple MacBookPro 7,1 */
67 { USB_DEVICE(0x05ac, 0x8213) },
68
0a79f674
CL		 69 /* Apple iMac11,1 */
70 { USB_DEVICE(0x05ac, 0x8215) },
71
9c047157
NI		 72 /* Apple MacBookPro6,2 */
73 { USB_DEVICE(0x05ac, 0x8218) },
74
3e3ede7d
EH		 75 /* Apple MacBookAir3,1, MacBookAir3,2 */
76 { USB_DEVICE(0x05ac, 0x821b) },
77
a63b723d
PAVM		 78 /* Apple MacBookAir4,1 */
79 { USB_DEVICE(0x05ac, 0x821f) },
80
88d377b6
MAP		 81 /* Apple MacBookPro8,2 */
82 { USB_DEVICE(0x05ac, 0x821a) },
83
f78b6826
JK		 84 /* Apple MacMini5,1 */
85 { USB_DEVICE(0x05ac, 0x8281) },
86
cfeb4145
MH		 87 /* AVM BlueFRITZ! USB v2.0 */
88 { USB_DEVICE(0x057c, 0x3800) },
89
90 /* Bluetooth Ultraport Module from IBM */
91 { USB_DEVICE(0x04bf, 0x030a) },
92
93 /* ALPS Modules with non-standard id */
94 { USB_DEVICE(0x044e, 0x3001) },
95 { USB_DEVICE(0x044e, 0x3002) },
96
97 /* Ericsson with non-standard id */
98 { USB_DEVICE(0x0bdb, 0x1002) },
99
100 /* Canyon CN-BTU1 with HID interfaces */
7a9d4020 101 { USB_DEVICE(0x0c10, 0x0000) },
cfeb4145 102
d13431ca 103 /* Broadcom BCM20702A0 */
c0190925 104 { USB_DEVICE(0x0a5c, 0x21e3) },
37305cf6 105 { USB_DEVICE(0x0a5c, 0x21f3) },
d13431ca
WJS		 106 { USB_DEVICE(0x413c, 0x8197) },
107
5e23b923
MH		 108 { } /* Terminating entry */
109};
110
111MODULE_DEVICE_TABLE(usb, btusb_table);
112
113static struct usb_device_id blacklist_table[] = {
cfeb4145
MH		 114 /* CSR BlueCore devices */
115 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
116
117 /* Broadcom BCM2033 without firmware */
118 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
119
be93112a
BS		 120 /* Atheros 3011 with sflash firmware */
121 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
2a7bcccc 122 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
8e7c3d2e 123 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
be93112a 124
509e7861
CYC		 125 /* Atheros AR9285 Malbec with sflash firmware */
126 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
127
d9f51b51 128 /* Atheros 3012 with sflash firmware */
2d25f8b4 129 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
d9f51b51 130
e9036e33
CYC		 131 /* Atheros AR5BBU12 with sflash firmware */
132 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
133
cfeb4145 134 /* Broadcom BCM2035 */
7a9d4020
MH		 135 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
136 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
137 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
cfeb4145
MH		 138
139 /* Broadcom BCM2045 */
7a9d4020
MH		 140 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
141 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
bdbef3d6 142
cfeb4145 143 /* IBM/Lenovo ThinkPad with Broadcom chip */
7a9d4020
MH		 144 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
145 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 146
147 /* HP laptop with Broadcom chip */
7a9d4020 148 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 149
150 /* Dell laptop with Broadcom chip */
7a9d4020 151 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 152
5ddd4a60 153 /* Dell Wireless 370 and 410 devices */
7a9d4020 154 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
5ddd4a60 155 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 156
7a9d4020
MH		 157 /* Belkin F8T012 and F8T013 devices */
158 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
159 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 160
5ddd4a60
MH		 161 /* Asus WL-BTD202 device */
162 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
163
164 /* Kensington Bluetooth USB adapter */
165 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
166
cfeb4145
MH		 167 /* RTX Telecom based adapters with buggy SCO support */
168 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
169 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
170
171 /* CONWISE Technology based adapters with buggy SCO support */
172 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
173
cfeb4145
MH		 174 /* Digianswer devices */
175 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
176 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
177
178 /* CSR BlueCore Bluetooth Sniffer */
179 { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
180
181 /* Frontline ComProbe Bluetooth Sniffer */
182 { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
183
5e23b923
MH		 184 { } /* Terminating entry */
185};
186
9bfa35fe
MH		 187#define BTUSB_MAX_ISOC_FRAMES 10
188
5e23b923
MH		 189#define BTUSB_INTR_RUNNING 0
190#define BTUSB_BULK_RUNNING 1
9bfa35fe 191#define BTUSB_ISOC_RUNNING 2
7bee549e 192#define BTUSB_SUSPENDING 3
08b8b6c4 193#define BTUSB_DID_ISO_RESUME 4
5e23b923
MH		 194
195struct btusb_data {
196 struct hci_dev *hdev;
197 struct usb_device *udev;
5fbcd260 198 struct usb_interface *intf;
9bfa35fe 199 struct usb_interface *isoc;
5e23b923
MH		 200
201 spinlock_t lock;
202
203 unsigned long flags;
204
205 struct work_struct work;
7bee549e 206 struct work_struct waker;
5e23b923
MH		 207
208 struct usb_anchor tx_anchor;
209 struct usb_anchor intr_anchor;
210 struct usb_anchor bulk_anchor;
9bfa35fe 211 struct usb_anchor isoc_anchor;
7bee549e
ON		 212 struct usb_anchor deferred;
213 int tx_in_flight;
214 spinlock_t txlock;
5e23b923
MH		 215
216 struct usb_endpoint_descriptor *intr_ep;
217 struct usb_endpoint_descriptor *bulk_tx_ep;
218 struct usb_endpoint_descriptor *bulk_rx_ep;
9bfa35fe
MH		 219 struct usb_endpoint_descriptor *isoc_tx_ep;
220 struct usb_endpoint_descriptor *isoc_rx_ep;
221
7a9d4020
MH		 222 __u8 cmdreq_type;
223
43c2e57f 224 unsigned int sco_num;
9bfa35fe 225 int isoc_altsetting;
6a88adf2 226 int suspend_count;
5e23b923
MH		 227};
228
7bee549e
ON		 229static int inc_tx(struct btusb_data *data)
230{
231 unsigned long flags;
232 int rv;
233
234 spin_lock_irqsave(&data->txlock, flags);
235 rv = test_bit(BTUSB_SUSPENDING, &data->flags);
236 if (!rv)
237 data->tx_in_flight++;
238 spin_unlock_irqrestore(&data->txlock, flags);
239
240 return rv;
241}
242
5e23b923
MH		 243static void btusb_intr_complete(struct urb *urb)
244{
245 struct hci_dev *hdev = urb->context;
246 struct btusb_data *data = hdev->driver_data;
247 int err;
248
249 BT_DBG("%s urb %p status %d count %d", hdev->name,
250 urb, urb->status, urb->actual_length);
251
252 if (!test_bit(HCI_RUNNING, &hdev->flags))
253 return;
254
255 if (urb->status == 0) {
9bfa35fe
MH		 256 hdev->stat.byte_rx += urb->actual_length;
257
5e23b923
MH		 258 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
259 urb->transfer_buffer,
260 urb->actual_length) < 0) {
261 BT_ERR("%s corrupted event packet", hdev->name);
262 hdev->stat.err_rx++;
263 }
264 }
265
266 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
267 return;
268
7bee549e 269 usb_mark_last_busy(data->udev);
5e23b923
MH		 270 usb_anchor_urb(urb, &data->intr_anchor);
271
272 err = usb_submit_urb(urb, GFP_ATOMIC);
273 if (err < 0) {
4935f1c1
PB		 274 /* -EPERM: urb is being killed;
275 * -ENODEV: device got disconnected */
276 if (err != -EPERM && err != -ENODEV)
61faddf6 277 BT_ERR("%s urb %p failed to resubmit (%d)",
5e23b923
MH		 278 hdev->name, urb, -err);
279 usb_unanchor_urb(urb);
280 }
281}
282
2eda66f4 283static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
5e23b923
MH		 284{
285 struct btusb_data *data = hdev->driver_data;
286 struct urb *urb;
287 unsigned char *buf;
288 unsigned int pipe;
289 int err, size;
290
291 BT_DBG("%s", hdev->name);
292
9bfa35fe
MH		 293 if (!data->intr_ep)
294 return -ENODEV;
295
2eda66f4 296 urb = usb_alloc_urb(0, mem_flags);
5e23b923
MH		 297 if (!urb)
298 return -ENOMEM;
299
300 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
301
2eda66f4 302 buf = kmalloc(size, mem_flags);
5e23b923
MH		 303 if (!buf) {
304 usb_free_urb(urb);
305 return -ENOMEM;
306 }
307
308 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
309
310 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
311 btusb_intr_complete, hdev,
312 data->intr_ep->bInterval);
313
314 urb->transfer_flags |= URB_FREE_BUFFER;
315
316 usb_anchor_urb(urb, &data->intr_anchor);
317
2eda66f4 318 err = usb_submit_urb(urb, mem_flags);
5e23b923 319 if (err < 0) {
d4b8d1c9
PB		 320 if (err != -EPERM && err != -ENODEV)
321 BT_ERR("%s urb %p submission failed (%d)",
5e23b923
MH		 322 hdev->name, urb, -err);
323 usb_unanchor_urb(urb);
5e23b923
MH		 324 }
325
326 usb_free_urb(urb);
327
328 return err;
329}
330
331static void btusb_bulk_complete(struct urb *urb)
332{
333 struct hci_dev *hdev = urb->context;
334 struct btusb_data *data = hdev->driver_data;
335 int err;
336
337 BT_DBG("%s urb %p status %d count %d", hdev->name,
338 urb, urb->status, urb->actual_length);
339
340 if (!test_bit(HCI_RUNNING, &hdev->flags))
341 return;
342
343 if (urb->status == 0) {
9bfa35fe
MH		 344 hdev->stat.byte_rx += urb->actual_length;
345
5e23b923
MH		 346 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
347 urb->transfer_buffer,
348 urb->actual_length) < 0) {
349 BT_ERR("%s corrupted ACL packet", hdev->name);
350 hdev->stat.err_rx++;
351 }
352 }
353
354 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
355 return;
356
357 usb_anchor_urb(urb, &data->bulk_anchor);
652fd781 358 usb_mark_last_busy(data->udev);
5e23b923
MH		 359
360 err = usb_submit_urb(urb, GFP_ATOMIC);
361 if (err < 0) {
4935f1c1
PB		 362 /* -EPERM: urb is being killed;
363 * -ENODEV: device got disconnected */
364 if (err != -EPERM && err != -ENODEV)
61faddf6 365 BT_ERR("%s urb %p failed to resubmit (%d)",
5e23b923
MH		 366 hdev->name, urb, -err);
367 usb_unanchor_urb(urb);
368 }
369}
370
2eda66f4 371static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
5e23b923
MH		 372{
373 struct btusb_data *data = hdev->driver_data;
374 struct urb *urb;
375 unsigned char *buf;
376 unsigned int pipe;
290ba200 377 int err, size = HCI_MAX_FRAME_SIZE;
5e23b923
MH		 378
379 BT_DBG("%s", hdev->name);
380
9bfa35fe
MH		 381 if (!data->bulk_rx_ep)
382 return -ENODEV;
383
2eda66f4 384 urb = usb_alloc_urb(0, mem_flags);
5e23b923
MH		 385 if (!urb)
386 return -ENOMEM;
387
2eda66f4 388 buf = kmalloc(size, mem_flags);
5e23b923
MH		 389 if (!buf) {
390 usb_free_urb(urb);
391 return -ENOMEM;
392 }
393
394 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
395
396 usb_fill_bulk_urb(urb, data->udev, pipe,
397 buf, size, btusb_bulk_complete, hdev);
398
399 urb->transfer_flags |= URB_FREE_BUFFER;
400
7bee549e 401 usb_mark_last_busy(data->udev);
5e23b923
MH		 402 usb_anchor_urb(urb, &data->bulk_anchor);
403
2eda66f4 404 err = usb_submit_urb(urb, mem_flags);
5e23b923 405 if (err < 0) {
d4b8d1c9
PB		 406 if (err != -EPERM && err != -ENODEV)
407 BT_ERR("%s urb %p submission failed (%d)",
5e23b923
MH		 408 hdev->name, urb, -err);
409 usb_unanchor_urb(urb);
5e23b923
MH		 410 }
411
412 usb_free_urb(urb);
413
414 return err;
415}
416
9bfa35fe
MH		 417static void btusb_isoc_complete(struct urb *urb)
418{
419 struct hci_dev *hdev = urb->context;
420 struct btusb_data *data = hdev->driver_data;
421 int i, err;
422
423 BT_DBG("%s urb %p status %d count %d", hdev->name,
424 urb, urb->status, urb->actual_length);
425
426 if (!test_bit(HCI_RUNNING, &hdev->flags))
427 return;
428
429 if (urb->status == 0) {
430 for (i = 0; i < urb->number_of_packets; i++) {
431 unsigned int offset = urb->iso_frame_desc[i].offset;
432 unsigned int length = urb->iso_frame_desc[i].actual_length;
433
434 if (urb->iso_frame_desc[i].status)
435 continue;
436
437 hdev->stat.byte_rx += length;
438
439 if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
440 urb->transfer_buffer + offset,
441 length) < 0) {
442 BT_ERR("%s corrupted SCO packet", hdev->name);
443 hdev->stat.err_rx++;
444 }
445 }
446 }
447
448 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
449 return;
450
451 usb_anchor_urb(urb, &data->isoc_anchor);
452
453 err = usb_submit_urb(urb, GFP_ATOMIC);
454 if (err < 0) {
4935f1c1
PB		 455 /* -EPERM: urb is being killed;
456 * -ENODEV: device got disconnected */
457 if (err != -EPERM && err != -ENODEV)
61faddf6 458 BT_ERR("%s urb %p failed to resubmit (%d)",
9bfa35fe
MH		 459 hdev->name, urb, -err);
460 usb_unanchor_urb(urb);
461 }
462}
463
42b16b3f 464static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
9bfa35fe
MH		 465{
466 int i, offset = 0;
467
468 BT_DBG("len %d mtu %d", len, mtu);
469
470 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
471 i++, offset += mtu, len -= mtu) {
472 urb->iso_frame_desc[i].offset = offset;
473 urb->iso_frame_desc[i].length = mtu;
474 }
475
476 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
477 urb->iso_frame_desc[i].offset = offset;
478 urb->iso_frame_desc[i].length = len;
479 i++;
480 }
481
482 urb->number_of_packets = i;
483}
484
2eda66f4 485static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
9bfa35fe
MH		 486{
487 struct btusb_data *data = hdev->driver_data;
488 struct urb *urb;
489 unsigned char *buf;
490 unsigned int pipe;
491 int err, size;
492
493 BT_DBG("%s", hdev->name);
494
495 if (!data->isoc_rx_ep)
496 return -ENODEV;
497
2eda66f4 498 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
9bfa35fe
MH		 499 if (!urb)
500 return -ENOMEM;
501
502 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
503 BTUSB_MAX_ISOC_FRAMES;
504
2eda66f4 505 buf = kmalloc(size, mem_flags);
9bfa35fe
MH		 506 if (!buf) {
507 usb_free_urb(urb);
508 return -ENOMEM;
509 }
510
511 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
512
fa0fb93f
BZ		 513 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
514 hdev, data->isoc_rx_ep->bInterval);
9bfa35fe
MH		 515
516 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
9bfa35fe
MH		 517
518 __fill_isoc_descriptor(urb, size,
519 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
520
521 usb_anchor_urb(urb, &data->isoc_anchor);
522
2eda66f4 523 err = usb_submit_urb(urb, mem_flags);
9bfa35fe 524 if (err < 0) {
d4b8d1c9
PB		 525 if (err != -EPERM && err != -ENODEV)
526 BT_ERR("%s urb %p submission failed (%d)",
9bfa35fe
MH		 527 hdev->name, urb, -err);
528 usb_unanchor_urb(urb);
9bfa35fe
MH		 529 }
530
531 usb_free_urb(urb);
532
533 return err;
534}
535
5e23b923 536static void btusb_tx_complete(struct urb *urb)
7bee549e
ON		 537{
538 struct sk_buff *skb = urb->context;
539 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
540 struct btusb_data *data = hdev->driver_data;
541
542 BT_DBG("%s urb %p status %d count %d", hdev->name,
543 urb, urb->status, urb->actual_length);
544
545 if (!test_bit(HCI_RUNNING, &hdev->flags))
546 goto done;
547
548 if (!urb->status)
549 hdev->stat.byte_tx += urb->transfer_buffer_length;
550 else
551 hdev->stat.err_tx++;
552
553done:
554 spin_lock(&data->txlock);
555 data->tx_in_flight--;
556 spin_unlock(&data->txlock);
557
558 kfree(urb->setup_packet);
559
560 kfree_skb(skb);
561}
562
563static void btusb_isoc_tx_complete(struct urb *urb)
5e23b923
MH		 564{
565 struct sk_buff *skb = urb->context;
566 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
567
568 BT_DBG("%s urb %p status %d count %d", hdev->name,
569 urb, urb->status, urb->actual_length);
570
571 if (!test_bit(HCI_RUNNING, &hdev->flags))
572 goto done;
573
574 if (!urb->status)
575 hdev->stat.byte_tx += urb->transfer_buffer_length;
576 else
577 hdev->stat.err_tx++;
578
579done:
580 kfree(urb->setup_packet);
581
582 kfree_skb(skb);
583}
584
585static int btusb_open(struct hci_dev *hdev)
586{
587 struct btusb_data *data = hdev->driver_data;
588 int err;
589
590 BT_DBG("%s", hdev->name);
591
7bee549e
ON		 592 err = usb_autopm_get_interface(data->intf);
593 if (err < 0)
594 return err;
595
596 data->intf->needs_remote_wakeup = 1;
597
5e23b923 598 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
7bee549e 599 goto done;
5e23b923
MH		 600
601 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
7bee549e 602 goto done;
5e23b923 603
2eda66f4 604 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
43c2e57f
MH		 605 if (err < 0)
606 goto failed;
607
608 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
5e23b923 609 if (err < 0) {
43c2e57f
MH		 610 usb_kill_anchored_urbs(&data->intr_anchor);
611 goto failed;
5e23b923
MH		 612 }
613
43c2e57f
MH		 614 set_bit(BTUSB_BULK_RUNNING, &data->flags);
615 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
616
7bee549e
ON		 617done:
618 usb_autopm_put_interface(data->intf);
43c2e57f
MH		 619 return 0;
620
621failed:
622 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
623 clear_bit(HCI_RUNNING, &hdev->flags);
7bee549e 624 usb_autopm_put_interface(data->intf);
5e23b923
MH		 625 return err;
626}
627
7bee549e
ON		 628static void btusb_stop_traffic(struct btusb_data *data)
629{
630 usb_kill_anchored_urbs(&data->intr_anchor);
631 usb_kill_anchored_urbs(&data->bulk_anchor);
632 usb_kill_anchored_urbs(&data->isoc_anchor);
633}
634
5e23b923
MH		 635static int btusb_close(struct hci_dev *hdev)
636{
637 struct btusb_data *data = hdev->driver_data;
7bee549e 638 int err;
5e23b923
MH		 639
640 BT_DBG("%s", hdev->name);
641
642 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
643 return 0;
644
e8c3c3d2 645 cancel_work_sync(&data->work);
404291ac 646 cancel_work_sync(&data->waker);
e8c3c3d2 647
9bfa35fe 648 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
5e23b923 649 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
5e23b923 650 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
7bee549e
ON		 651
652 btusb_stop_traffic(data);
653 err = usb_autopm_get_interface(data->intf);
654 if (err < 0)
7b8e2c1d 655 goto failed;
7bee549e
ON		 656
657 data->intf->needs_remote_wakeup = 0;
658 usb_autopm_put_interface(data->intf);
5e23b923 659
7b8e2c1d
ON		 660failed:
661 usb_scuttle_anchored_urbs(&data->deferred);
5e23b923
MH		 662 return 0;
663}
664
665static int btusb_flush(struct hci_dev *hdev)
666{
667 struct btusb_data *data = hdev->driver_data;
668
669 BT_DBG("%s", hdev->name);
670
671 usb_kill_anchored_urbs(&data->tx_anchor);
672
673 return 0;
674}
675
676static int btusb_send_frame(struct sk_buff *skb)
677{
678 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
679 struct btusb_data *data = hdev->driver_data;
680 struct usb_ctrlrequest *dr;
681 struct urb *urb;
682 unsigned int pipe;
683 int err;
684
685 BT_DBG("%s", hdev->name);
686
687 if (!test_bit(HCI_RUNNING, &hdev->flags))
688 return -EBUSY;
689
690 switch (bt_cb(skb)->pkt_type) {
691 case HCI_COMMAND_PKT:
692 urb = usb_alloc_urb(0, GFP_ATOMIC);
693 if (!urb)
694 return -ENOMEM;
695
696 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
697 if (!dr) {
698 usb_free_urb(urb);
699 return -ENOMEM;
700 }
701
7a9d4020 702 dr->bRequestType = data->cmdreq_type;
5e23b923
MH		 703 dr->bRequest = 0;
704 dr->wIndex = 0;
705 dr->wValue = 0;
706 dr->wLength = __cpu_to_le16(skb->len);
707
708 pipe = usb_sndctrlpipe(data->udev, 0x00);
709
710 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
711 skb->data, skb->len, btusb_tx_complete, skb);
712
713 hdev->stat.cmd_tx++;
714 break;
715
716 case HCI_ACLDATA_PKT:
9fd481e0 717 if (!data->bulk_tx_ep)
9bfa35fe
MH		 718 return -ENODEV;
719
5e23b923
MH		 720 urb = usb_alloc_urb(0, GFP_ATOMIC);
721 if (!urb)
722 return -ENOMEM;
723
724 pipe = usb_sndbulkpipe(data->udev,
725 data->bulk_tx_ep->bEndpointAddress);
726
727 usb_fill_bulk_urb(urb, data->udev, pipe,
728 skb->data, skb->len, btusb_tx_complete, skb);
729
730 hdev->stat.acl_tx++;
731 break;
732
733 case HCI_SCODATA_PKT:
9bfa35fe
MH		 734 if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
735 return -ENODEV;
736
737 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
738 if (!urb)
739 return -ENOMEM;
740
741 pipe = usb_sndisocpipe(data->udev,
742 data->isoc_tx_ep->bEndpointAddress);
743
03c2d0e8
GP		 744 usb_fill_int_urb(urb, data->udev, pipe,
745 skb->data, skb->len, btusb_isoc_tx_complete,
746 skb, data->isoc_tx_ep->bInterval);
9bfa35fe
MH		 747
748 urb->transfer_flags = URB_ISO_ASAP;
9bfa35fe
MH		 749
750 __fill_isoc_descriptor(urb, skb->len,
751 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
752
5e23b923 753 hdev->stat.sco_tx++;
7bee549e 754 goto skip_waking;
5e23b923
MH		 755
756 default:
757 return -EILSEQ;
758 }
759
7bee549e
ON		 760 err = inc_tx(data);
761 if (err) {
762 usb_anchor_urb(urb, &data->deferred);
763 schedule_work(&data->waker);
764 err = 0;
765 goto done;
766 }
767
768skip_waking:
5e23b923
MH		 769 usb_anchor_urb(urb, &data->tx_anchor);
770
771 err = usb_submit_urb(urb, GFP_ATOMIC);
772 if (err < 0) {
5a9b80e2
PB		 773 if (err != -EPERM && err != -ENODEV)
774 BT_ERR("%s urb %p submission failed (%d)",
775 hdev->name, urb, -err);
5e23b923
MH		 776 kfree(urb->setup_packet);
777 usb_unanchor_urb(urb);
7bee549e
ON		 778 } else {
779 usb_mark_last_busy(data->udev);
5e23b923
MH		 780 }
781
7bee549e 782done:
54a8a79c 783 usb_free_urb(urb);
5e23b923
MH		 784 return err;
785}
786
5e23b923
MH		 787static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
788{
789 struct btusb_data *data = hdev->driver_data;
790
791 BT_DBG("%s evt %d", hdev->name, evt);
792
43c2e57f
MH		 793 if (hdev->conn_hash.sco_num != data->sco_num) {
794 data->sco_num = hdev->conn_hash.sco_num;
795 schedule_work(&data->work);
a780efa8 796 }
5e23b923
MH		 797}
798
42b16b3f 799static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
9bfa35fe
MH		 800{
801 struct btusb_data *data = hdev->driver_data;
802 struct usb_interface *intf = data->isoc;
803 struct usb_endpoint_descriptor *ep_desc;
804 int i, err;
805
806 if (!data->isoc)
807 return -ENODEV;
808
809 err = usb_set_interface(data->udev, 1, altsetting);
810 if (err < 0) {
811 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
812 return err;
813 }
814
815 data->isoc_altsetting = altsetting;
816
817 data->isoc_tx_ep = NULL;
818 data->isoc_rx_ep = NULL;
819
820 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
821 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
822
823 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
824 data->isoc_tx_ep = ep_desc;
825 continue;
826 }
827
828 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
829 data->isoc_rx_ep = ep_desc;
830 continue;
831 }
832 }
833
834 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
835 BT_ERR("%s invalid SCO descriptors", hdev->name);
836 return -ENODEV;
837 }
838
839 return 0;
840}
841
5e23b923
MH		 842static void btusb_work(struct work_struct *work)
843{
844 struct btusb_data *data = container_of(work, struct btusb_data, work);
845 struct hci_dev *hdev = data->hdev;
7bee549e 846 int err;
5e23b923 847
9bfa35fe 848 if (hdev->conn_hash.sco_num > 0) {
08b8b6c4 849 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
8efdd0cd 850 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
7bee549e
ON		 851 if (err < 0) {
852 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
853 usb_kill_anchored_urbs(&data->isoc_anchor);
854 return;
855 }
856
08b8b6c4 857 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
7bee549e 858 }
9bfa35fe
MH		 859 if (data->isoc_altsetting != 2) {
860 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
861 usb_kill_anchored_urbs(&data->isoc_anchor);
862
863 if (__set_isoc_interface(hdev, 2) < 0)
864 return;
865 }
866
867 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2eda66f4 868 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
9bfa35fe
MH		 869 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
870 else
2eda66f4 871 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
9bfa35fe
MH		 872 }
873 } else {
874 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
875 usb_kill_anchored_urbs(&data->isoc_anchor);
876
877 __set_isoc_interface(hdev, 0);
08b8b6c4 878 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
8efdd0cd 879 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
5e23b923
MH		 880 }
881}
882
7bee549e
ON		 883static void btusb_waker(struct work_struct *work)
884{
885 struct btusb_data *data = container_of(work, struct btusb_data, waker);
886 int err;
887
888 err = usb_autopm_get_interface(data->intf);
889 if (err < 0)
890 return;
891
892 usb_autopm_put_interface(data->intf);
893}
894
5e23b923
MH		 895static int btusb_probe(struct usb_interface *intf,
896 const struct usb_device_id *id)
897{
898 struct usb_endpoint_descriptor *ep_desc;
899 struct btusb_data *data;
900 struct hci_dev *hdev;
901 int i, err;
902
903 BT_DBG("intf %p id %p", intf, id);
904
cfeb4145 905 /* interface numbers are hardcoded in the spec */
5e23b923
MH		 906 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
907 return -ENODEV;
908
909 if (!id->driver_info) {
910 const struct usb_device_id *match;
911 match = usb_match_id(intf, blacklist_table);
912 if (match)
913 id = match;
914 }
915
cfeb4145
MH		 916 if (id->driver_info == BTUSB_IGNORE)
917 return -ENODEV;
918
919 if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
920 return -ENODEV;
921
922 if (ignore_csr && id->driver_info & BTUSB_CSR)
923 return -ENODEV;
924
925 if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
926 return -ENODEV;
927
2d25f8b4
SL		 928 if (id->driver_info & BTUSB_ATH3012) {
929 struct usb_device *udev = interface_to_usbdev(intf);
930
931 /* Old firmware would otherwise let ath3k driver load
932 * patch and sysconfig files */
933 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
934 return -ENODEV;
935 }
936
5e23b923
MH		 937 data = kzalloc(sizeof(*data), GFP_KERNEL);
938 if (!data)
939 return -ENOMEM;
940
941 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
942 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
943
944 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
945 data->intr_ep = ep_desc;
946 continue;
947 }
948
949 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
950 data->bulk_tx_ep = ep_desc;
951 continue;
952 }
953
954 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
955 data->bulk_rx_ep = ep_desc;
956 continue;
957 }
958 }
959
960 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {
961 kfree(data);
962 return -ENODEV;
963 }
964
7a9d4020
MH		 965 data->cmdreq_type = USB_TYPE_CLASS;
966
5e23b923 967 data->udev = interface_to_usbdev(intf);
5fbcd260 968 data->intf = intf;
5e23b923
MH		 969
970 spin_lock_init(&data->lock);
971
972 INIT_WORK(&data->work, btusb_work);
7bee549e
ON		 973 INIT_WORK(&data->waker, btusb_waker);
974 spin_lock_init(&data->txlock);
5e23b923
MH		 975
976 init_usb_anchor(&data->tx_anchor);
977 init_usb_anchor(&data->intr_anchor);
978 init_usb_anchor(&data->bulk_anchor);
9bfa35fe 979 init_usb_anchor(&data->isoc_anchor);
7bee549e 980 init_usb_anchor(&data->deferred);
5e23b923
MH		 981
982 hdev = hci_alloc_dev();
983 if (!hdev) {
984 kfree(data);
985 return -ENOMEM;
986 }
987
c13854ce 988 hdev->bus = HCI_USB;
5e23b923
MH		 989 hdev->driver_data = data;
990
991 data->hdev = hdev;
992
993 SET_HCIDEV_DEV(hdev, &intf->dev);
994
995 hdev->open = btusb_open;
996 hdev->close = btusb_close;
997 hdev->flush = btusb_flush;
998 hdev->send = btusb_send_frame;
5e23b923
MH		 999 hdev->notify = btusb_notify;
1000
7a9d4020 1001 /* Interface numbers are hardcoded in the specification */
9bfa35fe
MH		 1002 data->isoc = usb_ifnum_to_if(data->udev, 1);
1003
7a9d4020
MH		 1004 if (!reset)
1005 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
cfeb4145
MH		 1006
1007 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1008 if (!disable_scofix)
1009 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1010 }
1011
9bfa35fe
MH		 1012 if (id->driver_info & BTUSB_BROKEN_ISOC)
1013 data->isoc = NULL;
1014
7a9d4020
MH		 1015 if (id->driver_info & BTUSB_DIGIANSWER) {
1016 data->cmdreq_type = USB_TYPE_VENDOR;
1017 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1018 }
1019
1020 if (id->driver_info & BTUSB_CSR) {
1021 struct usb_device *udev = data->udev;
1022
1023 /* Old firmware would otherwise execute USB reset */
1024 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
1025 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1026 }
1027
cfeb4145 1028 if (id->driver_info & BTUSB_SNIFFER) {
9bfa35fe 1029 struct usb_device *udev = data->udev;
cfeb4145 1030
7a9d4020 1031 /* New sniffer firmware has crippled HCI interface */
cfeb4145
MH		 1032 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1033 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
9bfa35fe
MH		 1034
1035 data->isoc = NULL;
cfeb4145
MH		 1036 }
1037
1038 if (id->driver_info & BTUSB_BCM92035) {
1039 unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 };
1040 struct sk_buff *skb;
1041
1042 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
1043 if (skb) {
1044 memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
1045 skb_queue_tail(&hdev->driver_init, skb);
1046 }
1047 }
5e23b923 1048
9bfa35fe
MH		 1049 if (data->isoc) {
1050 err = usb_driver_claim_interface(&btusb_driver,
5fbcd260 1051 data->isoc, data);
9bfa35fe
MH		 1052 if (err < 0) {
1053 hci_free_dev(hdev);
1054 kfree(data);
1055 return err;
1056 }
1057 }
1058
5e23b923
MH		 1059 err = hci_register_dev(hdev);
1060 if (err < 0) {
1061 hci_free_dev(hdev);
1062 kfree(data);
1063 return err;
1064 }
1065
1066 usb_set_intfdata(intf, data);
1067
1068 return 0;
1069}
1070
1071static void btusb_disconnect(struct usb_interface *intf)
1072{
1073 struct btusb_data *data = usb_get_intfdata(intf);
1074 struct hci_dev *hdev;
1075
1076 BT_DBG("intf %p", intf);
1077
1078 if (!data)
1079 return;
1080
1081 hdev = data->hdev;
1082
dc946bd8 1083 hci_dev_hold(hdev);
9bfa35fe 1084
5fbcd260
MH		 1085 usb_set_intfdata(data->intf, NULL);
1086
1087 if (data->isoc)
1088 usb_set_intfdata(data->isoc, NULL);
5e23b923
MH		 1089
1090 hci_unregister_dev(hdev);
1091
5fbcd260
MH		 1092 if (intf == data->isoc)
1093 usb_driver_release_interface(&btusb_driver, data->intf);
1094 else if (data->isoc)
1095 usb_driver_release_interface(&btusb_driver, data->isoc);
1096
dc946bd8 1097 hci_dev_put(hdev);
5fbcd260 1098
5e23b923 1099 hci_free_dev(hdev);
8381088e 1100 kfree(data);
5e23b923
MH		 1101}
1102
7bee549e 1103#ifdef CONFIG_PM
6a88adf2
MH		 1104static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1105{
1106 struct btusb_data *data = usb_get_intfdata(intf);
1107
1108 BT_DBG("intf %p", intf);
1109
1110 if (data->suspend_count++)
1111 return 0;
1112
7bee549e 1113 spin_lock_irq(&data->txlock);
5b1b0b81 1114 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
7bee549e
ON		 1115 set_bit(BTUSB_SUSPENDING, &data->flags);
1116 spin_unlock_irq(&data->txlock);
1117 } else {
1118 spin_unlock_irq(&data->txlock);
1119 data->suspend_count--;
1120 return -EBUSY;
1121 }
1122
6a88adf2
MH		 1123 cancel_work_sync(&data->work);
1124
7bee549e 1125 btusb_stop_traffic(data);
6a88adf2
MH		 1126 usb_kill_anchored_urbs(&data->tx_anchor);
1127
6a88adf2
MH		 1128 return 0;
1129}
1130
7bee549e
ON		 1131static void play_deferred(struct btusb_data *data)
1132{
1133 struct urb *urb;
1134 int err;
1135
1136 while ((urb = usb_get_from_anchor(&data->deferred))) {
1137 err = usb_submit_urb(urb, GFP_ATOMIC);
1138 if (err < 0)
1139 break;
1140
1141 data->tx_in_flight++;
1142 }
1143 usb_scuttle_anchored_urbs(&data->deferred);
1144}
1145
6a88adf2
MH		 1146static int btusb_resume(struct usb_interface *intf)
1147{
1148 struct btusb_data *data = usb_get_intfdata(intf);
1149 struct hci_dev *hdev = data->hdev;
7bee549e 1150 int err = 0;
6a88adf2
MH		 1151
1152 BT_DBG("intf %p", intf);
1153
1154 if (--data->suspend_count)
1155 return 0;
1156
1157 if (!test_bit(HCI_RUNNING, &hdev->flags))
7bee549e 1158 goto done;
6a88adf2
MH		 1159
1160 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1161 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1162 if (err < 0) {
1163 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
7bee549e 1164 goto failed;
6a88adf2
MH		 1165 }
1166 }
1167
1168 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
43c2e57f
MH		 1169 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1170 if (err < 0) {
6a88adf2 1171 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
7bee549e
ON		 1172 goto failed;
1173 }
1174
1175 btusb_submit_bulk_urb(hdev, GFP_NOIO);
6a88adf2
MH		 1176 }
1177
1178 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1179 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1180 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1181 else
1182 btusb_submit_isoc_urb(hdev, GFP_NOIO);
1183 }
1184
7bee549e
ON		 1185 spin_lock_irq(&data->txlock);
1186 play_deferred(data);
1187 clear_bit(BTUSB_SUSPENDING, &data->flags);
1188 spin_unlock_irq(&data->txlock);
1189 schedule_work(&data->work);
1190
6a88adf2 1191 return 0;
7bee549e
ON		 1192
1193failed:
1194 usb_scuttle_anchored_urbs(&data->deferred);
1195done:
1196 spin_lock_irq(&data->txlock);
1197 clear_bit(BTUSB_SUSPENDING, &data->flags);
1198 spin_unlock_irq(&data->txlock);
1199
1200 return err;
6a88adf2 1201}
7bee549e 1202#endif
6a88adf2 1203
5e23b923
MH		 1204static struct usb_driver btusb_driver = {
1205 .name = "btusb",
1206 .probe = btusb_probe,
1207 .disconnect = btusb_disconnect,
7bee549e 1208#ifdef CONFIG_PM
6a88adf2
MH		 1209 .suspend = btusb_suspend,
1210 .resume = btusb_resume,
7bee549e 1211#endif
5e23b923 1212 .id_table = btusb_table,
7bee549e 1213 .supports_autosuspend = 1,
5e23b923
MH		 1214};
1215
93f1508c 1216module_usb_driver(btusb_driver);
5e23b923 1217
cfeb4145
MH		 1218module_param(ignore_dga, bool, 0644);
1219MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1220
1221module_param(ignore_csr, bool, 0644);
1222MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1223
1224module_param(ignore_sniffer, bool, 0644);
1225MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1226
1227module_param(disable_scofix, bool, 0644);
1228MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1229
1230module_param(force_scofix, bool, 0644);
1231MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1232
1233module_param(reset, bool, 0644);
1234MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1235
5e23b923
MH		 1236MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1237MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1238MODULE_VERSION(VERSION);
1239MODULE_LICENSE("GPL");
ubuntu-bionic-kernel mirror