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Bluetooth: Add support for atheros 04ca:3004 device to ath3k
[deliverable/linux.git] / drivers / bluetooth / btusb.c
1 /*
2 *
3 * Generic Bluetooth USB driver
4 *
5 * Copyright (C) 2005-2008 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 #include <linux/usb.h>
26
27 #include <net/bluetooth/bluetooth.h>
28 #include <net/bluetooth/hci_core.h>
29
30 #define VERSION "0.6"
31
32 static bool ignore_dga;
33 static bool ignore_csr;
34 static bool ignore_sniffer;
35 static bool disable_scofix;
36 static bool force_scofix;
37
38 static bool reset = 1;
39
40 static struct usb_driver btusb_driver;
41
42 #define BTUSB_IGNORE 0x01
43 #define BTUSB_DIGIANSWER 0x02
44 #define BTUSB_CSR 0x04
45 #define BTUSB_SNIFFER 0x08
46 #define BTUSB_BCM92035 0x10
47 #define BTUSB_BROKEN_ISOC 0x20
48 #define BTUSB_WRONG_SCO_MTU 0x40
49 #define BTUSB_ATH3012 0x80
50
51 static struct usb_device_id btusb_table[] = {
52 /* Generic Bluetooth USB device */
53 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
54
55 /* Apple-specific (Broadcom) devices */
56 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01) },
57
58 /* Broadcom SoftSailing reporting vendor specific */
59 { USB_DEVICE(0x0a5c, 0x21e1) },
60
61 /* Apple MacBookPro 7,1 */
62 { USB_DEVICE(0x05ac, 0x8213) },
63
64 /* Apple iMac11,1 */
65 { USB_DEVICE(0x05ac, 0x8215) },
66
67 /* Apple MacBookPro6,2 */
68 { USB_DEVICE(0x05ac, 0x8218) },
69
70 /* Apple MacBookAir3,1, MacBookAir3,2 */
71 { USB_DEVICE(0x05ac, 0x821b) },
72
73 /* Apple MacBookAir4,1 */
74 { USB_DEVICE(0x05ac, 0x821f) },
75
76 /* Apple MacBookPro8,2 */
77 { USB_DEVICE(0x05ac, 0x821a) },
78
79 /* Apple MacMini5,1 */
80 { USB_DEVICE(0x05ac, 0x8281) },
81
82 /* AVM BlueFRITZ! USB v2.0 */
83 { USB_DEVICE(0x057c, 0x3800) },
84
85 /* Bluetooth Ultraport Module from IBM */
86 { USB_DEVICE(0x04bf, 0x030a) },
87
88 /* ALPS Modules with non-standard id */
89 { USB_DEVICE(0x044e, 0x3001) },
90 { USB_DEVICE(0x044e, 0x3002) },
91
92 /* Ericsson with non-standard id */
93 { USB_DEVICE(0x0bdb, 0x1002) },
94
95 /* Canyon CN-BTU1 with HID interfaces */
96 { USB_DEVICE(0x0c10, 0x0000) },
97
98 /* Broadcom BCM20702A0 */
99 { USB_DEVICE(0x0b05, 0x17b5) },
100 { USB_DEVICE(0x04ca, 0x2003) },
101 { USB_DEVICE(0x0489, 0xe042) },
102 { USB_DEVICE(0x413c, 0x8197) },
103
104 /* Foxconn - Hon Hai */
105 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01) },
106
107 /*Broadcom devices with vendor specific id */
108 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01) },
109
110 { } /* Terminating entry */
111 };
112
113 MODULE_DEVICE_TABLE(usb, btusb_table);
114
115 static struct usb_device_id blacklist_table[] = {
116 /* CSR BlueCore devices */
117 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
118
119 /* Broadcom BCM2033 without firmware */
120 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
121
122 /* Atheros 3011 with sflash firmware */
123 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
124 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
125 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
126 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
127 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
128 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
129
130 /* Atheros AR9285 Malbec with sflash firmware */
131 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
132
133 /* Atheros 3012 with sflash firmware */
134 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
135 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
136 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
137 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
138 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
139 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
140 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
141 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
142 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
143 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
144 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
145 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
146 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
147 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
148
149 /* Atheros AR5BBU12 with sflash firmware */
150 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
151
152 /* Atheros AR5BBU12 with sflash firmware */
153 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
154 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
155
156 /* Broadcom BCM2035 */
157 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
158 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
159 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
160
161 /* Broadcom BCM2045 */
162 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
163 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
164
165 /* IBM/Lenovo ThinkPad with Broadcom chip */
166 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
167 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
168
169 /* HP laptop with Broadcom chip */
170 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
171
172 /* Dell laptop with Broadcom chip */
173 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
174
175 /* Dell Wireless 370 and 410 devices */
176 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
177 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
178
179 /* Belkin F8T012 and F8T013 devices */
180 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
181 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
182
183 /* Asus WL-BTD202 device */
184 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
185
186 /* Kensington Bluetooth USB adapter */
187 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
188
189 /* RTX Telecom based adapters with buggy SCO support */
190 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
191 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
192
193 /* CONWISE Technology based adapters with buggy SCO support */
194 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
195
196 /* Digianswer devices */
197 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
198 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
199
200 /* CSR BlueCore Bluetooth Sniffer */
201 { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
202
203 /* Frontline ComProbe Bluetooth Sniffer */
204 { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
205
206 { } /* Terminating entry */
207 };
208
209 #define BTUSB_MAX_ISOC_FRAMES 10
210
211 #define BTUSB_INTR_RUNNING 0
212 #define BTUSB_BULK_RUNNING 1
213 #define BTUSB_ISOC_RUNNING 2
214 #define BTUSB_SUSPENDING 3
215 #define BTUSB_DID_ISO_RESUME 4
216
217 struct btusb_data {
218 struct hci_dev *hdev;
219 struct usb_device *udev;
220 struct usb_interface *intf;
221 struct usb_interface *isoc;
222
223 spinlock_t lock;
224
225 unsigned long flags;
226
227 struct work_struct work;
228 struct work_struct waker;
229
230 struct usb_anchor tx_anchor;
231 struct usb_anchor intr_anchor;
232 struct usb_anchor bulk_anchor;
233 struct usb_anchor isoc_anchor;
234 struct usb_anchor deferred;
235 int tx_in_flight;
236 spinlock_t txlock;
237
238 struct usb_endpoint_descriptor *intr_ep;
239 struct usb_endpoint_descriptor *bulk_tx_ep;
240 struct usb_endpoint_descriptor *bulk_rx_ep;
241 struct usb_endpoint_descriptor *isoc_tx_ep;
242 struct usb_endpoint_descriptor *isoc_rx_ep;
243
244 __u8 cmdreq_type;
245
246 unsigned int sco_num;
247 int isoc_altsetting;
248 int suspend_count;
249 };
250
251 static int inc_tx(struct btusb_data *data)
252 {
253 unsigned long flags;
254 int rv;
255
256 spin_lock_irqsave(&data->txlock, flags);
257 rv = test_bit(BTUSB_SUSPENDING, &data->flags);
258 if (!rv)
259 data->tx_in_flight++;
260 spin_unlock_irqrestore(&data->txlock, flags);
261
262 return rv;
263 }
264
265 static void btusb_intr_complete(struct urb *urb)
266 {
267 struct hci_dev *hdev = urb->context;
268 struct btusb_data *data = hci_get_drvdata(hdev);
269 int err;
270
271 BT_DBG("%s urb %p status %d count %d", hdev->name,
272 urb, urb->status, urb->actual_length);
273
274 if (!test_bit(HCI_RUNNING, &hdev->flags))
275 return;
276
277 if (urb->status == 0) {
278 hdev->stat.byte_rx += urb->actual_length;
279
280 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
281 urb->transfer_buffer,
282 urb->actual_length) < 0) {
283 BT_ERR("%s corrupted event packet", hdev->name);
284 hdev->stat.err_rx++;
285 }
286 }
287
288 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
289 return;
290
291 usb_mark_last_busy(data->udev);
292 usb_anchor_urb(urb, &data->intr_anchor);
293
294 err = usb_submit_urb(urb, GFP_ATOMIC);
295 if (err < 0) {
296 /* -EPERM: urb is being killed;
297 * -ENODEV: device got disconnected */
298 if (err != -EPERM && err != -ENODEV)
299 BT_ERR("%s urb %p failed to resubmit (%d)",
300 hdev->name, urb, -err);
301 usb_unanchor_urb(urb);
302 }
303 }
304
305 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
306 {
307 struct btusb_data *data = hci_get_drvdata(hdev);
308 struct urb *urb;
309 unsigned char *buf;
310 unsigned int pipe;
311 int err, size;
312
313 BT_DBG("%s", hdev->name);
314
315 if (!data->intr_ep)
316 return -ENODEV;
317
318 urb = usb_alloc_urb(0, mem_flags);
319 if (!urb)
320 return -ENOMEM;
321
322 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
323
324 buf = kmalloc(size, mem_flags);
325 if (!buf) {
326 usb_free_urb(urb);
327 return -ENOMEM;
328 }
329
330 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
331
332 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
333 btusb_intr_complete, hdev,
334 data->intr_ep->bInterval);
335
336 urb->transfer_flags |= URB_FREE_BUFFER;
337
338 usb_anchor_urb(urb, &data->intr_anchor);
339
340 err = usb_submit_urb(urb, mem_flags);
341 if (err < 0) {
342 if (err != -EPERM && err != -ENODEV)
343 BT_ERR("%s urb %p submission failed (%d)",
344 hdev->name, urb, -err);
345 usb_unanchor_urb(urb);
346 }
347
348 usb_free_urb(urb);
349
350 return err;
351 }
352
353 static void btusb_bulk_complete(struct urb *urb)
354 {
355 struct hci_dev *hdev = urb->context;
356 struct btusb_data *data = hci_get_drvdata(hdev);
357 int err;
358
359 BT_DBG("%s urb %p status %d count %d", hdev->name,
360 urb, urb->status, urb->actual_length);
361
362 if (!test_bit(HCI_RUNNING, &hdev->flags))
363 return;
364
365 if (urb->status == 0) {
366 hdev->stat.byte_rx += urb->actual_length;
367
368 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
369 urb->transfer_buffer,
370 urb->actual_length) < 0) {
371 BT_ERR("%s corrupted ACL packet", hdev->name);
372 hdev->stat.err_rx++;
373 }
374 }
375
376 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
377 return;
378
379 usb_anchor_urb(urb, &data->bulk_anchor);
380 usb_mark_last_busy(data->udev);
381
382 err = usb_submit_urb(urb, GFP_ATOMIC);
383 if (err < 0) {
384 /* -EPERM: urb is being killed;
385 * -ENODEV: device got disconnected */
386 if (err != -EPERM && err != -ENODEV)
387 BT_ERR("%s urb %p failed to resubmit (%d)",
388 hdev->name, urb, -err);
389 usb_unanchor_urb(urb);
390 }
391 }
392
393 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
394 {
395 struct btusb_data *data = hci_get_drvdata(hdev);
396 struct urb *urb;
397 unsigned char *buf;
398 unsigned int pipe;
399 int err, size = HCI_MAX_FRAME_SIZE;
400
401 BT_DBG("%s", hdev->name);
402
403 if (!data->bulk_rx_ep)
404 return -ENODEV;
405
406 urb = usb_alloc_urb(0, mem_flags);
407 if (!urb)
408 return -ENOMEM;
409
410 buf = kmalloc(size, mem_flags);
411 if (!buf) {
412 usb_free_urb(urb);
413 return -ENOMEM;
414 }
415
416 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
417
418 usb_fill_bulk_urb(urb, data->udev, pipe,
419 buf, size, btusb_bulk_complete, hdev);
420
421 urb->transfer_flags |= URB_FREE_BUFFER;
422
423 usb_mark_last_busy(data->udev);
424 usb_anchor_urb(urb, &data->bulk_anchor);
425
426 err = usb_submit_urb(urb, mem_flags);
427 if (err < 0) {
428 if (err != -EPERM && err != -ENODEV)
429 BT_ERR("%s urb %p submission failed (%d)",
430 hdev->name, urb, -err);
431 usb_unanchor_urb(urb);
432 }
433
434 usb_free_urb(urb);
435
436 return err;
437 }
438
439 static void btusb_isoc_complete(struct urb *urb)
440 {
441 struct hci_dev *hdev = urb->context;
442 struct btusb_data *data = hci_get_drvdata(hdev);
443 int i, err;
444
445 BT_DBG("%s urb %p status %d count %d", hdev->name,
446 urb, urb->status, urb->actual_length);
447
448 if (!test_bit(HCI_RUNNING, &hdev->flags))
449 return;
450
451 if (urb->status == 0) {
452 for (i = 0; i < urb->number_of_packets; i++) {
453 unsigned int offset = urb->iso_frame_desc[i].offset;
454 unsigned int length = urb->iso_frame_desc[i].actual_length;
455
456 if (urb->iso_frame_desc[i].status)
457 continue;
458
459 hdev->stat.byte_rx += length;
460
461 if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
462 urb->transfer_buffer + offset,
463 length) < 0) {
464 BT_ERR("%s corrupted SCO packet", hdev->name);
465 hdev->stat.err_rx++;
466 }
467 }
468 }
469
470 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
471 return;
472
473 usb_anchor_urb(urb, &data->isoc_anchor);
474
475 err = usb_submit_urb(urb, GFP_ATOMIC);
476 if (err < 0) {
477 /* -EPERM: urb is being killed;
478 * -ENODEV: device got disconnected */
479 if (err != -EPERM && err != -ENODEV)
480 BT_ERR("%s urb %p failed to resubmit (%d)",
481 hdev->name, urb, -err);
482 usb_unanchor_urb(urb);
483 }
484 }
485
486 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
487 {
488 int i, offset = 0;
489
490 BT_DBG("len %d mtu %d", len, mtu);
491
492 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
493 i++, offset += mtu, len -= mtu) {
494 urb->iso_frame_desc[i].offset = offset;
495 urb->iso_frame_desc[i].length = mtu;
496 }
497
498 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
499 urb->iso_frame_desc[i].offset = offset;
500 urb->iso_frame_desc[i].length = len;
501 i++;
502 }
503
504 urb->number_of_packets = i;
505 }
506
507 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
508 {
509 struct btusb_data *data = hci_get_drvdata(hdev);
510 struct urb *urb;
511 unsigned char *buf;
512 unsigned int pipe;
513 int err, size;
514
515 BT_DBG("%s", hdev->name);
516
517 if (!data->isoc_rx_ep)
518 return -ENODEV;
519
520 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
521 if (!urb)
522 return -ENOMEM;
523
524 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
525 BTUSB_MAX_ISOC_FRAMES;
526
527 buf = kmalloc(size, mem_flags);
528 if (!buf) {
529 usb_free_urb(urb);
530 return -ENOMEM;
531 }
532
533 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
534
535 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
536 hdev, data->isoc_rx_ep->bInterval);
537
538 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
539
540 __fill_isoc_descriptor(urb, size,
541 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
542
543 usb_anchor_urb(urb, &data->isoc_anchor);
544
545 err = usb_submit_urb(urb, mem_flags);
546 if (err < 0) {
547 if (err != -EPERM && err != -ENODEV)
548 BT_ERR("%s urb %p submission failed (%d)",
549 hdev->name, urb, -err);
550 usb_unanchor_urb(urb);
551 }
552
553 usb_free_urb(urb);
554
555 return err;
556 }
557
558 static void btusb_tx_complete(struct urb *urb)
559 {
560 struct sk_buff *skb = urb->context;
561 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
562 struct btusb_data *data = hci_get_drvdata(hdev);
563
564 BT_DBG("%s urb %p status %d count %d", hdev->name,
565 urb, urb->status, urb->actual_length);
566
567 if (!test_bit(HCI_RUNNING, &hdev->flags))
568 goto done;
569
570 if (!urb->status)
571 hdev->stat.byte_tx += urb->transfer_buffer_length;
572 else
573 hdev->stat.err_tx++;
574
575 done:
576 spin_lock(&data->txlock);
577 data->tx_in_flight--;
578 spin_unlock(&data->txlock);
579
580 kfree(urb->setup_packet);
581
582 kfree_skb(skb);
583 }
584
585 static void btusb_isoc_tx_complete(struct urb *urb)
586 {
587 struct sk_buff *skb = urb->context;
588 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
589
590 BT_DBG("%s urb %p status %d count %d", hdev->name,
591 urb, urb->status, urb->actual_length);
592
593 if (!test_bit(HCI_RUNNING, &hdev->flags))
594 goto done;
595
596 if (!urb->status)
597 hdev->stat.byte_tx += urb->transfer_buffer_length;
598 else
599 hdev->stat.err_tx++;
600
601 done:
602 kfree(urb->setup_packet);
603
604 kfree_skb(skb);
605 }
606
607 static int btusb_open(struct hci_dev *hdev)
608 {
609 struct btusb_data *data = hci_get_drvdata(hdev);
610 int err;
611
612 BT_DBG("%s", hdev->name);
613
614 err = usb_autopm_get_interface(data->intf);
615 if (err < 0)
616 return err;
617
618 data->intf->needs_remote_wakeup = 1;
619
620 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
621 goto done;
622
623 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
624 goto done;
625
626 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
627 if (err < 0)
628 goto failed;
629
630 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
631 if (err < 0) {
632 usb_kill_anchored_urbs(&data->intr_anchor);
633 goto failed;
634 }
635
636 set_bit(BTUSB_BULK_RUNNING, &data->flags);
637 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
638
639 done:
640 usb_autopm_put_interface(data->intf);
641 return 0;
642
643 failed:
644 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
645 clear_bit(HCI_RUNNING, &hdev->flags);
646 usb_autopm_put_interface(data->intf);
647 return err;
648 }
649
650 static void btusb_stop_traffic(struct btusb_data *data)
651 {
652 usb_kill_anchored_urbs(&data->intr_anchor);
653 usb_kill_anchored_urbs(&data->bulk_anchor);
654 usb_kill_anchored_urbs(&data->isoc_anchor);
655 }
656
657 static int btusb_close(struct hci_dev *hdev)
658 {
659 struct btusb_data *data = hci_get_drvdata(hdev);
660 int err;
661
662 BT_DBG("%s", hdev->name);
663
664 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
665 return 0;
666
667 cancel_work_sync(&data->work);
668 cancel_work_sync(&data->waker);
669
670 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
671 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
672 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
673
674 btusb_stop_traffic(data);
675 err = usb_autopm_get_interface(data->intf);
676 if (err < 0)
677 goto failed;
678
679 data->intf->needs_remote_wakeup = 0;
680 usb_autopm_put_interface(data->intf);
681
682 failed:
683 usb_scuttle_anchored_urbs(&data->deferred);
684 return 0;
685 }
686
687 static int btusb_flush(struct hci_dev *hdev)
688 {
689 struct btusb_data *data = hci_get_drvdata(hdev);
690
691 BT_DBG("%s", hdev->name);
692
693 usb_kill_anchored_urbs(&data->tx_anchor);
694
695 return 0;
696 }
697
698 static int btusb_send_frame(struct sk_buff *skb)
699 {
700 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
701 struct btusb_data *data = hci_get_drvdata(hdev);
702 struct usb_ctrlrequest *dr;
703 struct urb *urb;
704 unsigned int pipe;
705 int err;
706
707 BT_DBG("%s", hdev->name);
708
709 if (!test_bit(HCI_RUNNING, &hdev->flags))
710 return -EBUSY;
711
712 switch (bt_cb(skb)->pkt_type) {
713 case HCI_COMMAND_PKT:
714 urb = usb_alloc_urb(0, GFP_ATOMIC);
715 if (!urb)
716 return -ENOMEM;
717
718 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
719 if (!dr) {
720 usb_free_urb(urb);
721 return -ENOMEM;
722 }
723
724 dr->bRequestType = data->cmdreq_type;
725 dr->bRequest = 0;
726 dr->wIndex = 0;
727 dr->wValue = 0;
728 dr->wLength = __cpu_to_le16(skb->len);
729
730 pipe = usb_sndctrlpipe(data->udev, 0x00);
731
732 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
733 skb->data, skb->len, btusb_tx_complete, skb);
734
735 hdev->stat.cmd_tx++;
736 break;
737
738 case HCI_ACLDATA_PKT:
739 if (!data->bulk_tx_ep)
740 return -ENODEV;
741
742 urb = usb_alloc_urb(0, GFP_ATOMIC);
743 if (!urb)
744 return -ENOMEM;
745
746 pipe = usb_sndbulkpipe(data->udev,
747 data->bulk_tx_ep->bEndpointAddress);
748
749 usb_fill_bulk_urb(urb, data->udev, pipe,
750 skb->data, skb->len, btusb_tx_complete, skb);
751
752 hdev->stat.acl_tx++;
753 break;
754
755 case HCI_SCODATA_PKT:
756 if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
757 return -ENODEV;
758
759 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
760 if (!urb)
761 return -ENOMEM;
762
763 pipe = usb_sndisocpipe(data->udev,
764 data->isoc_tx_ep->bEndpointAddress);
765
766 usb_fill_int_urb(urb, data->udev, pipe,
767 skb->data, skb->len, btusb_isoc_tx_complete,
768 skb, data->isoc_tx_ep->bInterval);
769
770 urb->transfer_flags = URB_ISO_ASAP;
771
772 __fill_isoc_descriptor(urb, skb->len,
773 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
774
775 hdev->stat.sco_tx++;
776 goto skip_waking;
777
778 default:
779 return -EILSEQ;
780 }
781
782 err = inc_tx(data);
783 if (err) {
784 usb_anchor_urb(urb, &data->deferred);
785 schedule_work(&data->waker);
786 err = 0;
787 goto done;
788 }
789
790 skip_waking:
791 usb_anchor_urb(urb, &data->tx_anchor);
792
793 err = usb_submit_urb(urb, GFP_ATOMIC);
794 if (err < 0) {
795 if (err != -EPERM && err != -ENODEV)
796 BT_ERR("%s urb %p submission failed (%d)",
797 hdev->name, urb, -err);
798 kfree(urb->setup_packet);
799 usb_unanchor_urb(urb);
800 } else {
801 usb_mark_last_busy(data->udev);
802 }
803
804 done:
805 usb_free_urb(urb);
806 return err;
807 }
808
809 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
810 {
811 struct btusb_data *data = hci_get_drvdata(hdev);
812
813 BT_DBG("%s evt %d", hdev->name, evt);
814
815 if (hdev->conn_hash.sco_num != data->sco_num) {
816 data->sco_num = hdev->conn_hash.sco_num;
817 schedule_work(&data->work);
818 }
819 }
820
821 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
822 {
823 struct btusb_data *data = hci_get_drvdata(hdev);
824 struct usb_interface *intf = data->isoc;
825 struct usb_endpoint_descriptor *ep_desc;
826 int i, err;
827
828 if (!data->isoc)
829 return -ENODEV;
830
831 err = usb_set_interface(data->udev, 1, altsetting);
832 if (err < 0) {
833 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
834 return err;
835 }
836
837 data->isoc_altsetting = altsetting;
838
839 data->isoc_tx_ep = NULL;
840 data->isoc_rx_ep = NULL;
841
842 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
843 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
844
845 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
846 data->isoc_tx_ep = ep_desc;
847 continue;
848 }
849
850 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
851 data->isoc_rx_ep = ep_desc;
852 continue;
853 }
854 }
855
856 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
857 BT_ERR("%s invalid SCO descriptors", hdev->name);
858 return -ENODEV;
859 }
860
861 return 0;
862 }
863
864 static void btusb_work(struct work_struct *work)
865 {
866 struct btusb_data *data = container_of(work, struct btusb_data, work);
867 struct hci_dev *hdev = data->hdev;
868 int new_alts;
869 int err;
870
871 if (hdev->conn_hash.sco_num > 0) {
872 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
873 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
874 if (err < 0) {
875 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
876 usb_kill_anchored_urbs(&data->isoc_anchor);
877 return;
878 }
879
880 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
881 }
882
883 if (hdev->voice_setting & 0x0020) {
884 static const int alts[3] = { 2, 4, 5 };
885 new_alts = alts[hdev->conn_hash.sco_num - 1];
886 } else {
887 new_alts = hdev->conn_hash.sco_num;
888 }
889
890 if (data->isoc_altsetting != new_alts) {
891 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
892 usb_kill_anchored_urbs(&data->isoc_anchor);
893
894 if (__set_isoc_interface(hdev, new_alts) < 0)
895 return;
896 }
897
898 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
899 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
900 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
901 else
902 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
903 }
904 } else {
905 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
906 usb_kill_anchored_urbs(&data->isoc_anchor);
907
908 __set_isoc_interface(hdev, 0);
909 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
910 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
911 }
912 }
913
914 static void btusb_waker(struct work_struct *work)
915 {
916 struct btusb_data *data = container_of(work, struct btusb_data, waker);
917 int err;
918
919 err = usb_autopm_get_interface(data->intf);
920 if (err < 0)
921 return;
922
923 usb_autopm_put_interface(data->intf);
924 }
925
926 static int btusb_probe(struct usb_interface *intf,
927 const struct usb_device_id *id)
928 {
929 struct usb_endpoint_descriptor *ep_desc;
930 struct btusb_data *data;
931 struct hci_dev *hdev;
932 int i, err;
933
934 BT_DBG("intf %p id %p", intf, id);
935
936 /* interface numbers are hardcoded in the spec */
937 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
938 return -ENODEV;
939
940 if (!id->driver_info) {
941 const struct usb_device_id *match;
942 match = usb_match_id(intf, blacklist_table);
943 if (match)
944 id = match;
945 }
946
947 if (id->driver_info == BTUSB_IGNORE)
948 return -ENODEV;
949
950 if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
951 return -ENODEV;
952
953 if (ignore_csr && id->driver_info & BTUSB_CSR)
954 return -ENODEV;
955
956 if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
957 return -ENODEV;
958
959 if (id->driver_info & BTUSB_ATH3012) {
960 struct usb_device *udev = interface_to_usbdev(intf);
961
962 /* Old firmware would otherwise let ath3k driver load
963 * patch and sysconfig files */
964 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
965 return -ENODEV;
966 }
967
968 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
969 if (!data)
970 return -ENOMEM;
971
972 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
973 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
974
975 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
976 data->intr_ep = ep_desc;
977 continue;
978 }
979
980 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
981 data->bulk_tx_ep = ep_desc;
982 continue;
983 }
984
985 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
986 data->bulk_rx_ep = ep_desc;
987 continue;
988 }
989 }
990
991 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
992 return -ENODEV;
993
994 data->cmdreq_type = USB_TYPE_CLASS;
995
996 data->udev = interface_to_usbdev(intf);
997 data->intf = intf;
998
999 spin_lock_init(&data->lock);
1000
1001 INIT_WORK(&data->work, btusb_work);
1002 INIT_WORK(&data->waker, btusb_waker);
1003 spin_lock_init(&data->txlock);
1004
1005 init_usb_anchor(&data->tx_anchor);
1006 init_usb_anchor(&data->intr_anchor);
1007 init_usb_anchor(&data->bulk_anchor);
1008 init_usb_anchor(&data->isoc_anchor);
1009 init_usb_anchor(&data->deferred);
1010
1011 hdev = hci_alloc_dev();
1012 if (!hdev)
1013 return -ENOMEM;
1014
1015 hdev->bus = HCI_USB;
1016 hci_set_drvdata(hdev, data);
1017
1018 data->hdev = hdev;
1019
1020 SET_HCIDEV_DEV(hdev, &intf->dev);
1021
1022 hdev->open = btusb_open;
1023 hdev->close = btusb_close;
1024 hdev->flush = btusb_flush;
1025 hdev->send = btusb_send_frame;
1026 hdev->notify = btusb_notify;
1027
1028 /* Interface numbers are hardcoded in the specification */
1029 data->isoc = usb_ifnum_to_if(data->udev, 1);
1030
1031 if (!reset)
1032 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1033
1034 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1035 if (!disable_scofix)
1036 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1037 }
1038
1039 if (id->driver_info & BTUSB_BROKEN_ISOC)
1040 data->isoc = NULL;
1041
1042 if (id->driver_info & BTUSB_DIGIANSWER) {
1043 data->cmdreq_type = USB_TYPE_VENDOR;
1044 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1045 }
1046
1047 if (id->driver_info & BTUSB_CSR) {
1048 struct usb_device *udev = data->udev;
1049
1050 /* Old firmware would otherwise execute USB reset */
1051 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
1052 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1053 }
1054
1055 if (id->driver_info & BTUSB_SNIFFER) {
1056 struct usb_device *udev = data->udev;
1057
1058 /* New sniffer firmware has crippled HCI interface */
1059 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1060 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1061
1062 data->isoc = NULL;
1063 }
1064
1065 if (id->driver_info & BTUSB_BCM92035) {
1066 unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 };
1067 struct sk_buff *skb;
1068
1069 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
1070 if (skb) {
1071 memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
1072 skb_queue_tail(&hdev->driver_init, skb);
1073 }
1074 }
1075
1076 if (data->isoc) {
1077 err = usb_driver_claim_interface(&btusb_driver,
1078 data->isoc, data);
1079 if (err < 0) {
1080 hci_free_dev(hdev);
1081 return err;
1082 }
1083 }
1084
1085 err = hci_register_dev(hdev);
1086 if (err < 0) {
1087 hci_free_dev(hdev);
1088 return err;
1089 }
1090
1091 usb_set_intfdata(intf, data);
1092
1093 return 0;
1094 }
1095
1096 static void btusb_disconnect(struct usb_interface *intf)
1097 {
1098 struct btusb_data *data = usb_get_intfdata(intf);
1099 struct hci_dev *hdev;
1100
1101 BT_DBG("intf %p", intf);
1102
1103 if (!data)
1104 return;
1105
1106 hdev = data->hdev;
1107 usb_set_intfdata(data->intf, NULL);
1108
1109 if (data->isoc)
1110 usb_set_intfdata(data->isoc, NULL);
1111
1112 hci_unregister_dev(hdev);
1113
1114 if (intf == data->isoc)
1115 usb_driver_release_interface(&btusb_driver, data->intf);
1116 else if (data->isoc)
1117 usb_driver_release_interface(&btusb_driver, data->isoc);
1118
1119 hci_free_dev(hdev);
1120 }
1121
1122 #ifdef CONFIG_PM
1123 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1124 {
1125 struct btusb_data *data = usb_get_intfdata(intf);
1126
1127 BT_DBG("intf %p", intf);
1128
1129 if (data->suspend_count++)
1130 return 0;
1131
1132 spin_lock_irq(&data->txlock);
1133 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
1134 set_bit(BTUSB_SUSPENDING, &data->flags);
1135 spin_unlock_irq(&data->txlock);
1136 } else {
1137 spin_unlock_irq(&data->txlock);
1138 data->suspend_count--;
1139 return -EBUSY;
1140 }
1141
1142 cancel_work_sync(&data->work);
1143
1144 btusb_stop_traffic(data);
1145 usb_kill_anchored_urbs(&data->tx_anchor);
1146
1147 return 0;
1148 }
1149
1150 static void play_deferred(struct btusb_data *data)
1151 {
1152 struct urb *urb;
1153 int err;
1154
1155 while ((urb = usb_get_from_anchor(&data->deferred))) {
1156 err = usb_submit_urb(urb, GFP_ATOMIC);
1157 if (err < 0)
1158 break;
1159
1160 data->tx_in_flight++;
1161 }
1162 usb_scuttle_anchored_urbs(&data->deferred);
1163 }
1164
1165 static int btusb_resume(struct usb_interface *intf)
1166 {
1167 struct btusb_data *data = usb_get_intfdata(intf);
1168 struct hci_dev *hdev = data->hdev;
1169 int err = 0;
1170
1171 BT_DBG("intf %p", intf);
1172
1173 if (--data->suspend_count)
1174 return 0;
1175
1176 if (!test_bit(HCI_RUNNING, &hdev->flags))
1177 goto done;
1178
1179 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1180 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1181 if (err < 0) {
1182 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1183 goto failed;
1184 }
1185 }
1186
1187 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1188 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1189 if (err < 0) {
1190 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1191 goto failed;
1192 }
1193
1194 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1195 }
1196
1197 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1198 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1199 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1200 else
1201 btusb_submit_isoc_urb(hdev, GFP_NOIO);
1202 }
1203
1204 spin_lock_irq(&data->txlock);
1205 play_deferred(data);
1206 clear_bit(BTUSB_SUSPENDING, &data->flags);
1207 spin_unlock_irq(&data->txlock);
1208 schedule_work(&data->work);
1209
1210 return 0;
1211
1212 failed:
1213 usb_scuttle_anchored_urbs(&data->deferred);
1214 done:
1215 spin_lock_irq(&data->txlock);
1216 clear_bit(BTUSB_SUSPENDING, &data->flags);
1217 spin_unlock_irq(&data->txlock);
1218
1219 return err;
1220 }
1221 #endif
1222
1223 static struct usb_driver btusb_driver = {
1224 .name = "btusb",
1225 .probe = btusb_probe,
1226 .disconnect = btusb_disconnect,
1227 #ifdef CONFIG_PM
1228 .suspend = btusb_suspend,
1229 .resume = btusb_resume,
1230 #endif
1231 .id_table = btusb_table,
1232 .supports_autosuspend = 1,
1233 .disable_hub_initiated_lpm = 1,
1234 };
1235
1236 module_usb_driver(btusb_driver);
1237
1238 module_param(ignore_dga, bool, 0644);
1239 MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1240
1241 module_param(ignore_csr, bool, 0644);
1242 MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1243
1244 module_param(ignore_sniffer, bool, 0644);
1245 MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1246
1247 module_param(disable_scofix, bool, 0644);
1248 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1249
1250 module_param(force_scofix, bool, 0644);
1251 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1252
1253 module_param(reset, bool, 0644);
1254 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1255
1256 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1257 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1258 MODULE_VERSION(VERSION);
1259 MODULE_LICENSE("GPL");
Linux kernel - Deliverables
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