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USB: usb-storage: unusual_devs update for Super TOP SATA bridge
[linux/fpc-iii.git] / drivers / bluetooth / btusb.c
blob27f9d9fc5a062c712d96ce875eb3853e5f27bbe8
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/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
38 #define VERSION "0.6"
39
40 static bool ignore_dga;
41 static bool ignore_csr;
42 static bool ignore_sniffer;
43 static bool disable_scofix;
44 static bool force_scofix;
45
46 static bool reset = 1;
47
48 static struct usb_driver btusb_driver;
49
50 #define BTUSB_IGNORE 0x01
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
57 #define BTUSB_ATH3012 0x80
58
59 static struct usb_device_id btusb_table[] = {
60 /* Generic Bluetooth USB device */
61 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
62
63 /* Apple-specific (Broadcom) devices */
64 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01) },
65
66 /* Broadcom SoftSailing reporting vendor specific */
67 { USB_DEVICE(0x0a5c, 0x21e1) },
68
69 /* Apple MacBookPro 7,1 */
70 { USB_DEVICE(0x05ac, 0x8213) },
71
72 /* Apple iMac11,1 */
73 { USB_DEVICE(0x05ac, 0x8215) },
74
75 /* Apple MacBookPro6,2 */
76 { USB_DEVICE(0x05ac, 0x8218) },
77
78 /* Apple MacBookAir3,1, MacBookAir3,2 */
79 { USB_DEVICE(0x05ac, 0x821b) },
80
81 /* Apple MacBookAir4,1 */
82 { USB_DEVICE(0x05ac, 0x821f) },
83
84 /* Apple MacBookPro8,2 */
85 { USB_DEVICE(0x05ac, 0x821a) },
86
87 /* Apple MacMini5,1 */
88 { USB_DEVICE(0x05ac, 0x8281) },
89
90 /* AVM BlueFRITZ! USB v2.0 */
91 { USB_DEVICE(0x057c, 0x3800) },
92
93 /* Bluetooth Ultraport Module from IBM */
94 { USB_DEVICE(0x04bf, 0x030a) },
95
96 /* ALPS Modules with non-standard id */
97 { USB_DEVICE(0x044e, 0x3001) },
98 { USB_DEVICE(0x044e, 0x3002) },
99
100 /* Ericsson with non-standard id */
101 { USB_DEVICE(0x0bdb, 0x1002) },
102
103 /* Canyon CN-BTU1 with HID interfaces */
104 { USB_DEVICE(0x0c10, 0x0000) },
105
106 /* Broadcom BCM20702A0 */
107 { USB_DEVICE(0x0489, 0xe042) },
108 { USB_DEVICE(0x413c, 0x8197) },
109
110 /* Foxconn - Hon Hai */
111 { USB_DEVICE(0x0489, 0xe033) },
112
113 /*Broadcom devices with vendor specific id */
114 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01) },
115
116 { } /* Terminating entry */
117 };
118
119 MODULE_DEVICE_TABLE(usb, btusb_table);
120
121 static struct usb_device_id blacklist_table[] = {
122 /* CSR BlueCore devices */
123 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
124
125 /* Broadcom BCM2033 without firmware */
126 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
127
128 /* Atheros 3011 with sflash firmware */
129 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
130 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
131 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
132 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
133 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
134
135 /* Atheros AR9285 Malbec with sflash firmware */
136 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
137
138 /* Atheros 3012 with sflash firmware */
139 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
140 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
141 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
142 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
143 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
144 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
145
146 /* Atheros AR5BBU12 with sflash firmware */
147 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
148
149 /* Broadcom BCM2035 */
150 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
151 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
152 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
153
154 /* Broadcom BCM2045 */
155 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
156 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
157
158 /* IBM/Lenovo ThinkPad with Broadcom chip */
159 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
160 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
161
162 /* HP laptop with Broadcom chip */
163 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
164
165 /* Dell laptop with Broadcom chip */
166 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
167
168 /* Dell Wireless 370 and 410 devices */
169 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
170 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
171
172 /* Belkin F8T012 and F8T013 devices */
173 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
174 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
175
176 /* Asus WL-BTD202 device */
177 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
178
179 /* Kensington Bluetooth USB adapter */
180 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
181
182 /* RTX Telecom based adapters with buggy SCO support */
183 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
184 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
185
186 /* CONWISE Technology based adapters with buggy SCO support */
187 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
188
189 /* Digianswer devices */
190 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
191 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
192
193 /* CSR BlueCore Bluetooth Sniffer */
194 { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
195
196 /* Frontline ComProbe Bluetooth Sniffer */
197 { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
198
199 { } /* Terminating entry */
200 };
201
202 #define BTUSB_MAX_ISOC_FRAMES 10
203
204 #define BTUSB_INTR_RUNNING 0
205 #define BTUSB_BULK_RUNNING 1
206 #define BTUSB_ISOC_RUNNING 2
207 #define BTUSB_SUSPENDING 3
208 #define BTUSB_DID_ISO_RESUME 4
209
210 struct btusb_data {
211 struct hci_dev *hdev;
212 struct usb_device *udev;
213 struct usb_interface *intf;
214 struct usb_interface *isoc;
215
216 spinlock_t lock;
217
218 unsigned long flags;
219
220 struct work_struct work;
221 struct work_struct waker;
222
223 struct usb_anchor tx_anchor;
224 struct usb_anchor intr_anchor;
225 struct usb_anchor bulk_anchor;
226 struct usb_anchor isoc_anchor;
227 struct usb_anchor deferred;
228 int tx_in_flight;
229 spinlock_t txlock;
230
231 struct usb_endpoint_descriptor *intr_ep;
232 struct usb_endpoint_descriptor *bulk_tx_ep;
233 struct usb_endpoint_descriptor *bulk_rx_ep;
234 struct usb_endpoint_descriptor *isoc_tx_ep;
235 struct usb_endpoint_descriptor *isoc_rx_ep;
236
237 __u8 cmdreq_type;
238
239 unsigned int sco_num;
240 int isoc_altsetting;
241 int suspend_count;
242 };
243
244 static int inc_tx(struct btusb_data *data)
245 {
246 unsigned long flags;
247 int rv;
248
249 spin_lock_irqsave(&data->txlock, flags);
250 rv = test_bit(BTUSB_SUSPENDING, &data->flags);
251 if (!rv)
252 data->tx_in_flight++;
253 spin_unlock_irqrestore(&data->txlock, flags);
254
255 return rv;
256 }
257
258 static void btusb_intr_complete(struct urb *urb)
259 {
260 struct hci_dev *hdev = urb->context;
261 struct btusb_data *data = hci_get_drvdata(hdev);
262 int err;
263
264 BT_DBG("%s urb %p status %d count %d", hdev->name,
265 urb, urb->status, urb->actual_length);
266
267 if (!test_bit(HCI_RUNNING, &hdev->flags))
268 return;
269
270 if (urb->status == 0) {
271 hdev->stat.byte_rx += urb->actual_length;
272
273 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
274 urb->transfer_buffer,
275 urb->actual_length) < 0) {
276 BT_ERR("%s corrupted event packet", hdev->name);
277 hdev->stat.err_rx++;
278 }
279 }
280
281 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
282 return;
283
284 usb_mark_last_busy(data->udev);
285 usb_anchor_urb(urb, &data->intr_anchor);
286
287 err = usb_submit_urb(urb, GFP_ATOMIC);
288 if (err < 0) {
289 /* -EPERM: urb is being killed;
290 * -ENODEV: device got disconnected */
291 if (err != -EPERM && err != -ENODEV)
292 BT_ERR("%s urb %p failed to resubmit (%d)",
293 hdev->name, urb, -err);
294 usb_unanchor_urb(urb);
295 }
296 }
297
298 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
299 {
300 struct btusb_data *data = hci_get_drvdata(hdev);
301 struct urb *urb;
302 unsigned char *buf;
303 unsigned int pipe;
304 int err, size;
305
306 BT_DBG("%s", hdev->name);
307
308 if (!data->intr_ep)
309 return -ENODEV;
310
311 urb = usb_alloc_urb(0, mem_flags);
312 if (!urb)
313 return -ENOMEM;
314
315 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
316
317 buf = kmalloc(size, mem_flags);
318 if (!buf) {
319 usb_free_urb(urb);
320 return -ENOMEM;
321 }
322
323 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
324
325 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
326 btusb_intr_complete, hdev,
327 data->intr_ep->bInterval);
328
329 urb->transfer_flags |= URB_FREE_BUFFER;
330
331 usb_anchor_urb(urb, &data->intr_anchor);
332
333 err = usb_submit_urb(urb, mem_flags);
334 if (err < 0) {
335 if (err != -EPERM && err != -ENODEV)
336 BT_ERR("%s urb %p submission failed (%d)",
337 hdev->name, urb, -err);
338 usb_unanchor_urb(urb);
339 }
340
341 usb_free_urb(urb);
342
343 return err;
344 }
345
346 static void btusb_bulk_complete(struct urb *urb)
347 {
348 struct hci_dev *hdev = urb->context;
349 struct btusb_data *data = hci_get_drvdata(hdev);
350 int err;
351
352 BT_DBG("%s urb %p status %d count %d", hdev->name,
353 urb, urb->status, urb->actual_length);
354
355 if (!test_bit(HCI_RUNNING, &hdev->flags))
356 return;
357
358 if (urb->status == 0) {
359 hdev->stat.byte_rx += urb->actual_length;
360
361 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
362 urb->transfer_buffer,
363 urb->actual_length) < 0) {
364 BT_ERR("%s corrupted ACL packet", hdev->name);
365 hdev->stat.err_rx++;
366 }
367 }
368
369 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
370 return;
371
372 usb_anchor_urb(urb, &data->bulk_anchor);
373 usb_mark_last_busy(data->udev);
374
375 err = usb_submit_urb(urb, GFP_ATOMIC);
376 if (err < 0) {
377 /* -EPERM: urb is being killed;
378 * -ENODEV: device got disconnected */
379 if (err != -EPERM && err != -ENODEV)
380 BT_ERR("%s urb %p failed to resubmit (%d)",
381 hdev->name, urb, -err);
382 usb_unanchor_urb(urb);
383 }
384 }
385
386 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
387 {
388 struct btusb_data *data = hci_get_drvdata(hdev);
389 struct urb *urb;
390 unsigned char *buf;
391 unsigned int pipe;
392 int err, size = HCI_MAX_FRAME_SIZE;
393
394 BT_DBG("%s", hdev->name);
395
396 if (!data->bulk_rx_ep)
397 return -ENODEV;
398
399 urb = usb_alloc_urb(0, mem_flags);
400 if (!urb)
401 return -ENOMEM;
402
403 buf = kmalloc(size, mem_flags);
404 if (!buf) {
405 usb_free_urb(urb);
406 return -ENOMEM;
407 }
408
409 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
410
411 usb_fill_bulk_urb(urb, data->udev, pipe,
412 buf, size, btusb_bulk_complete, hdev);
413
414 urb->transfer_flags |= URB_FREE_BUFFER;
415
416 usb_mark_last_busy(data->udev);
417 usb_anchor_urb(urb, &data->bulk_anchor);
418
419 err = usb_submit_urb(urb, mem_flags);
420 if (err < 0) {
421 if (err != -EPERM && err != -ENODEV)
422 BT_ERR("%s urb %p submission failed (%d)",
423 hdev->name, urb, -err);
424 usb_unanchor_urb(urb);
425 }
426
427 usb_free_urb(urb);
428
429 return err;
430 }
431
432 static void btusb_isoc_complete(struct urb *urb)
433 {
434 struct hci_dev *hdev = urb->context;
435 struct btusb_data *data = hci_get_drvdata(hdev);
436 int i, err;
437
438 BT_DBG("%s urb %p status %d count %d", hdev->name,
439 urb, urb->status, urb->actual_length);
440
441 if (!test_bit(HCI_RUNNING, &hdev->flags))
442 return;
443
444 if (urb->status == 0) {
445 for (i = 0; i < urb->number_of_packets; i++) {
446 unsigned int offset = urb->iso_frame_desc[i].offset;
447 unsigned int length = urb->iso_frame_desc[i].actual_length;
448
449 if (urb->iso_frame_desc[i].status)
450 continue;
451
452 hdev->stat.byte_rx += length;
453
454 if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
455 urb->transfer_buffer + offset,
456 length) < 0) {
457 BT_ERR("%s corrupted SCO packet", hdev->name);
458 hdev->stat.err_rx++;
459 }
460 }
461 }
462
463 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
464 return;
465
466 usb_anchor_urb(urb, &data->isoc_anchor);
467
468 err = usb_submit_urb(urb, GFP_ATOMIC);
469 if (err < 0) {
470 /* -EPERM: urb is being killed;
471 * -ENODEV: device got disconnected */
472 if (err != -EPERM && err != -ENODEV)
473 BT_ERR("%s urb %p failed to resubmit (%d)",
474 hdev->name, urb, -err);
475 usb_unanchor_urb(urb);
476 }
477 }
478
479 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
480 {
481 int i, offset = 0;
482
483 BT_DBG("len %d mtu %d", len, mtu);
484
485 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
486 i++, offset += mtu, len -= mtu) {
487 urb->iso_frame_desc[i].offset = offset;
488 urb->iso_frame_desc[i].length = mtu;
489 }
490
491 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
492 urb->iso_frame_desc[i].offset = offset;
493 urb->iso_frame_desc[i].length = len;
494 i++;
495 }
496
497 urb->number_of_packets = i;
498 }
499
500 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
501 {
502 struct btusb_data *data = hci_get_drvdata(hdev);
503 struct urb *urb;
504 unsigned char *buf;
505 unsigned int pipe;
506 int err, size;
507
508 BT_DBG("%s", hdev->name);
509
510 if (!data->isoc_rx_ep)
511 return -ENODEV;
512
513 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
514 if (!urb)
515 return -ENOMEM;
516
517 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
518 BTUSB_MAX_ISOC_FRAMES;
519
520 buf = kmalloc(size, mem_flags);
521 if (!buf) {
522 usb_free_urb(urb);
523 return -ENOMEM;
524 }
525
526 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
527
528 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
529 hdev, data->isoc_rx_ep->bInterval);
530
531 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
532
533 __fill_isoc_descriptor(urb, size,
534 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
535
536 usb_anchor_urb(urb, &data->isoc_anchor);
537
538 err = usb_submit_urb(urb, mem_flags);
539 if (err < 0) {
540 if (err != -EPERM && err != -ENODEV)
541 BT_ERR("%s urb %p submission failed (%d)",
542 hdev->name, urb, -err);
543 usb_unanchor_urb(urb);
544 }
545
546 usb_free_urb(urb);
547
548 return err;
549 }
550
551 static void btusb_tx_complete(struct urb *urb)
552 {
553 struct sk_buff *skb = urb->context;
554 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
555 struct btusb_data *data = hci_get_drvdata(hdev);
556
557 BT_DBG("%s urb %p status %d count %d", hdev->name,
558 urb, urb->status, urb->actual_length);
559
560 if (!test_bit(HCI_RUNNING, &hdev->flags))
561 goto done;
562
563 if (!urb->status)
564 hdev->stat.byte_tx += urb->transfer_buffer_length;
565 else
566 hdev->stat.err_tx++;
567
568 done:
569 spin_lock(&data->txlock);
570 data->tx_in_flight--;
571 spin_unlock(&data->txlock);
572
573 kfree(urb->setup_packet);
574
575 kfree_skb(skb);
576 }
577
578 static void btusb_isoc_tx_complete(struct urb *urb)
579 {
580 struct sk_buff *skb = urb->context;
581 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
582
583 BT_DBG("%s urb %p status %d count %d", hdev->name,
584 urb, urb->status, urb->actual_length);
585
586 if (!test_bit(HCI_RUNNING, &hdev->flags))
587 goto done;
588
589 if (!urb->status)
590 hdev->stat.byte_tx += urb->transfer_buffer_length;
591 else
592 hdev->stat.err_tx++;
593
594 done:
595 kfree(urb->setup_packet);
596
597 kfree_skb(skb);
598 }
599
600 static int btusb_open(struct hci_dev *hdev)
601 {
602 struct btusb_data *data = hci_get_drvdata(hdev);
603 int err;
604
605 BT_DBG("%s", hdev->name);
606
607 err = usb_autopm_get_interface(data->intf);
608 if (err < 0)
609 return err;
610
611 data->intf->needs_remote_wakeup = 1;
612
613 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
614 goto done;
615
616 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
617 goto done;
618
619 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
620 if (err < 0)
621 goto failed;
622
623 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
624 if (err < 0) {
625 usb_kill_anchored_urbs(&data->intr_anchor);
626 goto failed;
627 }
628
629 set_bit(BTUSB_BULK_RUNNING, &data->flags);
630 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
631
632 done:
633 usb_autopm_put_interface(data->intf);
634 return 0;
635
636 failed:
637 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
638 clear_bit(HCI_RUNNING, &hdev->flags);
639 usb_autopm_put_interface(data->intf);
640 return err;
641 }
642
643 static void btusb_stop_traffic(struct btusb_data *data)
644 {
645 usb_kill_anchored_urbs(&data->intr_anchor);
646 usb_kill_anchored_urbs(&data->bulk_anchor);
647 usb_kill_anchored_urbs(&data->isoc_anchor);
648 }
649
650 static int btusb_close(struct hci_dev *hdev)
651 {
652 struct btusb_data *data = hci_get_drvdata(hdev);
653 int err;
654
655 BT_DBG("%s", hdev->name);
656
657 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
658 return 0;
659
660 cancel_work_sync(&data->work);
661 cancel_work_sync(&data->waker);
662
663 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
664 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
665 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
666
667 btusb_stop_traffic(data);
668 err = usb_autopm_get_interface(data->intf);
669 if (err < 0)
670 goto failed;
671
672 data->intf->needs_remote_wakeup = 0;
673 usb_autopm_put_interface(data->intf);
674
675 failed:
676 usb_scuttle_anchored_urbs(&data->deferred);
677 return 0;
678 }
679
680 static int btusb_flush(struct hci_dev *hdev)
681 {
682 struct btusb_data *data = hci_get_drvdata(hdev);
683
684 BT_DBG("%s", hdev->name);
685
686 usb_kill_anchored_urbs(&data->tx_anchor);
687
688 return 0;
689 }
690
691 static int btusb_send_frame(struct sk_buff *skb)
692 {
693 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
694 struct btusb_data *data = hci_get_drvdata(hdev);
695 struct usb_ctrlrequest *dr;
696 struct urb *urb;
697 unsigned int pipe;
698 int err;
699
700 BT_DBG("%s", hdev->name);
701
702 if (!test_bit(HCI_RUNNING, &hdev->flags))
703 return -EBUSY;
704
705 switch (bt_cb(skb)->pkt_type) {
706 case HCI_COMMAND_PKT:
707 urb = usb_alloc_urb(0, GFP_ATOMIC);
708 if (!urb)
709 return -ENOMEM;
710
711 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
712 if (!dr) {
713 usb_free_urb(urb);
714 return -ENOMEM;
715 }
716
717 dr->bRequestType = data->cmdreq_type;
718 dr->bRequest = 0;
719 dr->wIndex = 0;
720 dr->wValue = 0;
721 dr->wLength = __cpu_to_le16(skb->len);
722
723 pipe = usb_sndctrlpipe(data->udev, 0x00);
724
725 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
726 skb->data, skb->len, btusb_tx_complete, skb);
727
728 hdev->stat.cmd_tx++;
729 break;
730
731 case HCI_ACLDATA_PKT:
732 if (!data->bulk_tx_ep)
733 return -ENODEV;
734
735 urb = usb_alloc_urb(0, GFP_ATOMIC);
736 if (!urb)
737 return -ENOMEM;
738
739 pipe = usb_sndbulkpipe(data->udev,
740 data->bulk_tx_ep->bEndpointAddress);
741
742 usb_fill_bulk_urb(urb, data->udev, pipe,
743 skb->data, skb->len, btusb_tx_complete, skb);
744
745 hdev->stat.acl_tx++;
746 break;
747
748 case HCI_SCODATA_PKT:
749 if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
750 return -ENODEV;
751
752 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
753 if (!urb)
754 return -ENOMEM;
755
756 pipe = usb_sndisocpipe(data->udev,
757 data->isoc_tx_ep->bEndpointAddress);
758
759 usb_fill_int_urb(urb, data->udev, pipe,
760 skb->data, skb->len, btusb_isoc_tx_complete,
761 skb, data->isoc_tx_ep->bInterval);
762
763 urb->transfer_flags = URB_ISO_ASAP;
764
765 __fill_isoc_descriptor(urb, skb->len,
766 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
767
768 hdev->stat.sco_tx++;
769 goto skip_waking;
770
771 default:
772 return -EILSEQ;
773 }
774
775 err = inc_tx(data);
776 if (err) {
777 usb_anchor_urb(urb, &data->deferred);
778 schedule_work(&data->waker);
779 err = 0;
780 goto done;
781 }
782
783 skip_waking:
784 usb_anchor_urb(urb, &data->tx_anchor);
785
786 err = usb_submit_urb(urb, GFP_ATOMIC);
787 if (err < 0) {
788 if (err != -EPERM && err != -ENODEV)
789 BT_ERR("%s urb %p submission failed (%d)",
790 hdev->name, urb, -err);
791 kfree(urb->setup_packet);
792 usb_unanchor_urb(urb);
793 } else {
794 usb_mark_last_busy(data->udev);
795 }
796
797 done:
798 usb_free_urb(urb);
799 return err;
800 }
801
802 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
803 {
804 struct btusb_data *data = hci_get_drvdata(hdev);
805
806 BT_DBG("%s evt %d", hdev->name, evt);
807
808 if (hdev->conn_hash.sco_num != data->sco_num) {
809 data->sco_num = hdev->conn_hash.sco_num;
810 schedule_work(&data->work);
811 }
812 }
813
814 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
815 {
816 struct btusb_data *data = hci_get_drvdata(hdev);
817 struct usb_interface *intf = data->isoc;
818 struct usb_endpoint_descriptor *ep_desc;
819 int i, err;
820
821 if (!data->isoc)
822 return -ENODEV;
823
824 err = usb_set_interface(data->udev, 1, altsetting);
825 if (err < 0) {
826 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
827 return err;
828 }
829
830 data->isoc_altsetting = altsetting;
831
832 data->isoc_tx_ep = NULL;
833 data->isoc_rx_ep = NULL;
834
835 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
836 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
837
838 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
839 data->isoc_tx_ep = ep_desc;
840 continue;
841 }
842
843 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
844 data->isoc_rx_ep = ep_desc;
845 continue;
846 }
847 }
848
849 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
850 BT_ERR("%s invalid SCO descriptors", hdev->name);
851 return -ENODEV;
852 }
853
854 return 0;
855 }
856
857 static void btusb_work(struct work_struct *work)
858 {
859 struct btusb_data *data = container_of(work, struct btusb_data, work);
860 struct hci_dev *hdev = data->hdev;
861 int err;
862
863 if (hdev->conn_hash.sco_num > 0) {
864 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
865 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
866 if (err < 0) {
867 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
868 usb_kill_anchored_urbs(&data->isoc_anchor);
869 return;
870 }
871
872 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
873 }
874 if (data->isoc_altsetting != 2) {
875 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
876 usb_kill_anchored_urbs(&data->isoc_anchor);
877
878 if (__set_isoc_interface(hdev, 2) < 0)
879 return;
880 }
881
882 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
883 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
884 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
885 else
886 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
887 }
888 } else {
889 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
890 usb_kill_anchored_urbs(&data->isoc_anchor);
891
892 __set_isoc_interface(hdev, 0);
893 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
894 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
895 }
896 }
897
898 static void btusb_waker(struct work_struct *work)
899 {
900 struct btusb_data *data = container_of(work, struct btusb_data, waker);
901 int err;
902
903 err = usb_autopm_get_interface(data->intf);
904 if (err < 0)
905 return;
906
907 usb_autopm_put_interface(data->intf);
908 }
909
910 static int btusb_probe(struct usb_interface *intf,
911 const struct usb_device_id *id)
912 {
913 struct usb_endpoint_descriptor *ep_desc;
914 struct btusb_data *data;
915 struct hci_dev *hdev;
916 int i, err;
917
918 BT_DBG("intf %p id %p", intf, id);
919
920 /* interface numbers are hardcoded in the spec */
921 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
922 return -ENODEV;
923
924 if (!id->driver_info) {
925 const struct usb_device_id *match;
926 match = usb_match_id(intf, blacklist_table);
927 if (match)
928 id = match;
929 }
930
931 if (id->driver_info == BTUSB_IGNORE)
932 return -ENODEV;
933
934 if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
935 return -ENODEV;
936
937 if (ignore_csr && id->driver_info & BTUSB_CSR)
938 return -ENODEV;
939
940 if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
941 return -ENODEV;
942
943 if (id->driver_info & BTUSB_ATH3012) {
944 struct usb_device *udev = interface_to_usbdev(intf);
945
946 /* Old firmware would otherwise let ath3k driver load
947 * patch and sysconfig files */
948 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
949 return -ENODEV;
950 }
951
952 data = kzalloc(sizeof(*data), GFP_KERNEL);
953 if (!data)
954 return -ENOMEM;
955
956 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
957 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
958
959 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
960 data->intr_ep = ep_desc;
961 continue;
962 }
963
964 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
965 data->bulk_tx_ep = ep_desc;
966 continue;
967 }
968
969 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
970 data->bulk_rx_ep = ep_desc;
971 continue;
972 }
973 }
974
975 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {
976 kfree(data);
977 return -ENODEV;
978 }
979
980 data->cmdreq_type = USB_TYPE_CLASS;
981
982 data->udev = interface_to_usbdev(intf);
983 data->intf = intf;
984
985 spin_lock_init(&data->lock);
986
987 INIT_WORK(&data->work, btusb_work);
988 INIT_WORK(&data->waker, btusb_waker);
989 spin_lock_init(&data->txlock);
990
991 init_usb_anchor(&data->tx_anchor);
992 init_usb_anchor(&data->intr_anchor);
993 init_usb_anchor(&data->bulk_anchor);
994 init_usb_anchor(&data->isoc_anchor);
995 init_usb_anchor(&data->deferred);
996
997 hdev = hci_alloc_dev();
998 if (!hdev) {
999 kfree(data);
1000 return -ENOMEM;
1001 }
1002
1003 hdev->bus = HCI_USB;
1004 hci_set_drvdata(hdev, data);
1005
1006 data->hdev = hdev;
1007
1008 SET_HCIDEV_DEV(hdev, &intf->dev);
1009
1010 hdev->open = btusb_open;
1011 hdev->close = btusb_close;
1012 hdev->flush = btusb_flush;
1013 hdev->send = btusb_send_frame;
1014 hdev->notify = btusb_notify;
1015
1016 /* Interface numbers are hardcoded in the specification */
1017 data->isoc = usb_ifnum_to_if(data->udev, 1);
1018
1019 if (!reset)
1020 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1021
1022 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1023 if (!disable_scofix)
1024 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1025 }
1026
1027 if (id->driver_info & BTUSB_BROKEN_ISOC)
1028 data->isoc = NULL;
1029
1030 if (id->driver_info & BTUSB_DIGIANSWER) {
1031 data->cmdreq_type = USB_TYPE_VENDOR;
1032 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1033 }
1034
1035 if (id->driver_info & BTUSB_CSR) {
1036 struct usb_device *udev = data->udev;
1037
1038 /* Old firmware would otherwise execute USB reset */
1039 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
1040 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1041 }
1042
1043 if (id->driver_info & BTUSB_SNIFFER) {
1044 struct usb_device *udev = data->udev;
1045
1046 /* New sniffer firmware has crippled HCI interface */
1047 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1048 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1049
1050 data->isoc = NULL;
1051 }
1052
1053 if (id->driver_info & BTUSB_BCM92035) {
1054 unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 };
1055 struct sk_buff *skb;
1056
1057 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
1058 if (skb) {
1059 memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
1060 skb_queue_tail(&hdev->driver_init, skb);
1061 }
1062 }
1063
1064 if (data->isoc) {
1065 err = usb_driver_claim_interface(&btusb_driver,
1066 data->isoc, data);
1067 if (err < 0) {
1068 hci_free_dev(hdev);
1069 kfree(data);
1070 return err;
1071 }
1072 }
1073
1074 err = hci_register_dev(hdev);
1075 if (err < 0) {
1076 hci_free_dev(hdev);
1077 kfree(data);
1078 return err;
1079 }
1080
1081 usb_set_intfdata(intf, data);
1082
1083 return 0;
1084 }
1085
1086 static void btusb_disconnect(struct usb_interface *intf)
1087 {
1088 struct btusb_data *data = usb_get_intfdata(intf);
1089 struct hci_dev *hdev;
1090
1091 BT_DBG("intf %p", intf);
1092
1093 if (!data)
1094 return;
1095
1096 hdev = data->hdev;
1097 usb_set_intfdata(data->intf, NULL);
1098
1099 if (data->isoc)
1100 usb_set_intfdata(data->isoc, NULL);
1101
1102 hci_unregister_dev(hdev);
1103
1104 if (intf == data->isoc)
1105 usb_driver_release_interface(&btusb_driver, data->intf);
1106 else if (data->isoc)
1107 usb_driver_release_interface(&btusb_driver, data->isoc);
1108
1109 hci_free_dev(hdev);
1110 kfree(data);
1111 }
1112
1113 #ifdef CONFIG_PM
1114 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1115 {
1116 struct btusb_data *data = usb_get_intfdata(intf);
1117
1118 BT_DBG("intf %p", intf);
1119
1120 if (data->suspend_count++)
1121 return 0;
1122
1123 spin_lock_irq(&data->txlock);
1124 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
1125 set_bit(BTUSB_SUSPENDING, &data->flags);
1126 spin_unlock_irq(&data->txlock);
1127 } else {
1128 spin_unlock_irq(&data->txlock);
1129 data->suspend_count--;
1130 return -EBUSY;
1131 }
1132
1133 cancel_work_sync(&data->work);
1134
1135 btusb_stop_traffic(data);
1136 usb_kill_anchored_urbs(&data->tx_anchor);
1137
1138 return 0;
1139 }
1140
1141 static void play_deferred(struct btusb_data *data)
1142 {
1143 struct urb *urb;
1144 int err;
1145
1146 while ((urb = usb_get_from_anchor(&data->deferred))) {
1147 err = usb_submit_urb(urb, GFP_ATOMIC);
1148 if (err < 0)
1149 break;
1150
1151 data->tx_in_flight++;
1152 }
1153 usb_scuttle_anchored_urbs(&data->deferred);
1154 }
1155
1156 static int btusb_resume(struct usb_interface *intf)
1157 {
1158 struct btusb_data *data = usb_get_intfdata(intf);
1159 struct hci_dev *hdev = data->hdev;
1160 int err = 0;
1161
1162 BT_DBG("intf %p", intf);
1163
1164 if (--data->suspend_count)
1165 return 0;
1166
1167 if (!test_bit(HCI_RUNNING, &hdev->flags))
1168 goto done;
1169
1170 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1171 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1172 if (err < 0) {
1173 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1174 goto failed;
1175 }
1176 }
1177
1178 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1179 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1180 if (err < 0) {
1181 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1182 goto failed;
1183 }
1184
1185 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1186 }
1187
1188 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1189 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1190 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1191 else
1192 btusb_submit_isoc_urb(hdev, GFP_NOIO);
1193 }
1194
1195 spin_lock_irq(&data->txlock);
1196 play_deferred(data);
1197 clear_bit(BTUSB_SUSPENDING, &data->flags);
1198 spin_unlock_irq(&data->txlock);
1199 schedule_work(&data->work);
1200
1201 return 0;
1202
1203 failed:
1204 usb_scuttle_anchored_urbs(&data->deferred);
1205 done:
1206 spin_lock_irq(&data->txlock);
1207 clear_bit(BTUSB_SUSPENDING, &data->flags);
1208 spin_unlock_irq(&data->txlock);
1209
1210 return err;
1211 }
1212 #endif
1213
1214 static struct usb_driver btusb_driver = {
1215 .name = "btusb",
1216 .probe = btusb_probe,
1217 .disconnect = btusb_disconnect,
1218 #ifdef CONFIG_PM
1219 .suspend = btusb_suspend,
1220 .resume = btusb_resume,
1221 #endif
1222 .id_table = btusb_table,
1223 .supports_autosuspend = 1,
1224 };
1225
1226 module_usb_driver(btusb_driver);
1227
1228 module_param(ignore_dga, bool, 0644);
1229 MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1230
1231 module_param(ignore_csr, bool, 0644);
1232 MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1233
1234 module_param(ignore_sniffer, bool, 0644);
1235 MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1236
1237 module_param(disable_scofix, bool, 0644);
1238 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1239
1240 module_param(force_scofix, bool, 0644);
1241 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1242
1243 module_param(reset, bool, 0644);
1244 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1245
1246 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1247 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1248 MODULE_VERSION(VERSION);
1249 MODULE_LICENSE("GPL");
Linux with added FPC-III support