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Bluetooth: btusb: Add USB device ID "0a5c 21e8"
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / bluetooth / btusb.c
blobecd128e5670412f4e9579c93ef22520396287828
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 int ignore_dga;
41 static int ignore_csr;
42 static int ignore_sniffer;
43 static int disable_scofix;
44 static int force_scofix;
45
46 static int 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 /* Broadcom SoftSailing reporting vendor specific */
64 { USB_DEVICE(0x05ac, 0x21e1) },
65
66 /* Apple MacBookPro 7,1 */
67 { USB_DEVICE(0x05ac, 0x8213) },
68
69 /* Apple iMac11,1 */
70 { USB_DEVICE(0x05ac, 0x8215) },
71
72 /* Apple MacBookPro6,2 */
73 { USB_DEVICE(0x05ac, 0x8218) },
74
75 /* Apple MacBookAir3,1, MacBookAir3,2 */
76 { USB_DEVICE(0x05ac, 0x821b) },
77
78 /* Apple MacBookAir4,1 */
79 { USB_DEVICE(0x05ac, 0x821f) },
80
81 /* Apple MacBookPro8,2 */
82 { USB_DEVICE(0x05ac, 0x821a) },
83
84 /* Apple MacMini5,1 */
85 { USB_DEVICE(0x05ac, 0x8281) },
86
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 */
101 { USB_DEVICE(0x0c10, 0x0000) },
102
103 /* Broadcom BCM20702A0 */
104 { USB_DEVICE(0x0a5c, 0x21e3) },
105 { USB_DEVICE(0x0a5c, 0x21e6) },
106 { USB_DEVICE(0x0a5c, 0x21e8) },
107 { USB_DEVICE(0x0a5c, 0x21f3) },
108 { USB_DEVICE(0x413c, 0x8197) },
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(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
125 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
126 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
127
128 /* Atheros AR9285 Malbec with sflash firmware */
129 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
130
131 /* Atheros 3012 with sflash firmware */
132 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
133 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
134 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
135 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
136
137 /* Atheros AR5BBU12 with sflash firmware */
138 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
139
140 /* Broadcom BCM2035 */
141 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
142 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
143 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
144
145 /* Broadcom BCM2045 */
146 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
147 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
148
149 /* IBM/Lenovo ThinkPad with Broadcom chip */
150 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
151 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
152
153 /* HP laptop with Broadcom chip */
154 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
155
156 /* Dell laptop with Broadcom chip */
157 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
158
159 /* Dell Wireless 370 and 410 devices */
160 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
161 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
162
163 /* Belkin F8T012 and F8T013 devices */
164 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
165 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
166
167 /* Asus WL-BTD202 device */
168 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
169
170 /* Kensington Bluetooth USB adapter */
171 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
172
173 /* RTX Telecom based adapters with buggy SCO support */
174 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
175 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
176
177 /* CONWISE Technology based adapters with buggy SCO support */
178 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
179
180 /* Digianswer devices */
181 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
182 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
183
184 /* CSR BlueCore Bluetooth Sniffer */
185 { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
186
187 /* Frontline ComProbe Bluetooth Sniffer */
188 { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
189
190 { } /* Terminating entry */
191 };
192
193 #define BTUSB_MAX_ISOC_FRAMES 10
194
195 #define BTUSB_INTR_RUNNING 0
196 #define BTUSB_BULK_RUNNING 1
197 #define BTUSB_ISOC_RUNNING 2
198 #define BTUSB_SUSPENDING 3
199 #define BTUSB_DID_ISO_RESUME 4
200
201 struct btusb_data {
202 struct hci_dev *hdev;
203 struct usb_device *udev;
204 struct usb_interface *intf;
205 struct usb_interface *isoc;
206
207 spinlock_t lock;
208
209 unsigned long flags;
210
211 struct work_struct work;
212 struct work_struct waker;
213
214 struct usb_anchor tx_anchor;
215 struct usb_anchor intr_anchor;
216 struct usb_anchor bulk_anchor;
217 struct usb_anchor isoc_anchor;
218 struct usb_anchor deferred;
219 int tx_in_flight;
220 spinlock_t txlock;
221
222 struct usb_endpoint_descriptor *intr_ep;
223 struct usb_endpoint_descriptor *bulk_tx_ep;
224 struct usb_endpoint_descriptor *bulk_rx_ep;
225 struct usb_endpoint_descriptor *isoc_tx_ep;
226 struct usb_endpoint_descriptor *isoc_rx_ep;
227
228 __u8 cmdreq_type;
229
230 unsigned int sco_num;
231 int isoc_altsetting;
232 int suspend_count;
233 };
234
235 static int inc_tx(struct btusb_data *data)
236 {
237 unsigned long flags;
238 int rv;
239
240 spin_lock_irqsave(&data->txlock, flags);
241 rv = test_bit(BTUSB_SUSPENDING, &data->flags);
242 if (!rv)
243 data->tx_in_flight++;
244 spin_unlock_irqrestore(&data->txlock, flags);
245
246 return rv;
247 }
248
249 static void btusb_intr_complete(struct urb *urb)
250 {
251 struct hci_dev *hdev = urb->context;
252 struct btusb_data *data = hdev->driver_data;
253 int err;
254
255 BT_DBG("%s urb %p status %d count %d", hdev->name,
256 urb, urb->status, urb->actual_length);
257
258 if (!test_bit(HCI_RUNNING, &hdev->flags))
259 return;
260
261 if (urb->status == 0) {
262 hdev->stat.byte_rx += urb->actual_length;
263
264 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
265 urb->transfer_buffer,
266 urb->actual_length) < 0) {
267 BT_ERR("%s corrupted event packet", hdev->name);
268 hdev->stat.err_rx++;
269 }
270 }
271
272 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
273 return;
274
275 usb_mark_last_busy(data->udev);
276 usb_anchor_urb(urb, &data->intr_anchor);
277
278 err = usb_submit_urb(urb, GFP_ATOMIC);
279 if (err < 0) {
280 if (err != -EPERM)
281 BT_ERR("%s urb %p failed to resubmit (%d)",
282 hdev->name, urb, -err);
283 usb_unanchor_urb(urb);
284 }
285 }
286
287 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
288 {
289 struct btusb_data *data = hdev->driver_data;
290 struct urb *urb;
291 unsigned char *buf;
292 unsigned int pipe;
293 int err, size;
294
295 BT_DBG("%s", hdev->name);
296
297 if (!data->intr_ep)
298 return -ENODEV;
299
300 urb = usb_alloc_urb(0, mem_flags);
301 if (!urb)
302 return -ENOMEM;
303
304 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
305
306 buf = kmalloc(size, mem_flags);
307 if (!buf) {
308 usb_free_urb(urb);
309 return -ENOMEM;
310 }
311
312 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
313
314 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
315 btusb_intr_complete, hdev,
316 data->intr_ep->bInterval);
317
318 urb->transfer_flags |= URB_FREE_BUFFER;
319
320 usb_anchor_urb(urb, &data->intr_anchor);
321
322 err = usb_submit_urb(urb, mem_flags);
323 if (err < 0) {
324 BT_ERR("%s urb %p submission failed (%d)",
325 hdev->name, urb, -err);
326 usb_unanchor_urb(urb);
327 }
328
329 usb_free_urb(urb);
330
331 return err;
332 }
333
334 static void btusb_bulk_complete(struct urb *urb)
335 {
336 struct hci_dev *hdev = urb->context;
337 struct btusb_data *data = hdev->driver_data;
338 int err;
339
340 BT_DBG("%s urb %p status %d count %d", hdev->name,
341 urb, urb->status, urb->actual_length);
342
343 if (!test_bit(HCI_RUNNING, &hdev->flags))
344 return;
345
346 if (urb->status == 0) {
347 hdev->stat.byte_rx += urb->actual_length;
348
349 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
350 urb->transfer_buffer,
351 urb->actual_length) < 0) {
352 BT_ERR("%s corrupted ACL packet", hdev->name);
353 hdev->stat.err_rx++;
354 }
355 }
356
357 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
358 return;
359
360 usb_anchor_urb(urb, &data->bulk_anchor);
361 usb_mark_last_busy(data->udev);
362
363 err = usb_submit_urb(urb, GFP_ATOMIC);
364 if (err < 0) {
365 if (err != -EPERM)
366 BT_ERR("%s urb %p failed to resubmit (%d)",
367 hdev->name, urb, -err);
368 usb_unanchor_urb(urb);
369 }
370 }
371
372 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
373 {
374 struct btusb_data *data = hdev->driver_data;
375 struct urb *urb;
376 unsigned char *buf;
377 unsigned int pipe;
378 int err, size = HCI_MAX_FRAME_SIZE;
379
380 BT_DBG("%s", hdev->name);
381
382 if (!data->bulk_rx_ep)
383 return -ENODEV;
384
385 urb = usb_alloc_urb(0, mem_flags);
386 if (!urb)
387 return -ENOMEM;
388
389 buf = kmalloc(size, mem_flags);
390 if (!buf) {
391 usb_free_urb(urb);
392 return -ENOMEM;
393 }
394
395 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
396
397 usb_fill_bulk_urb(urb, data->udev, pipe,
398 buf, size, btusb_bulk_complete, hdev);
399
400 urb->transfer_flags |= URB_FREE_BUFFER;
401
402 usb_mark_last_busy(data->udev);
403 usb_anchor_urb(urb, &data->bulk_anchor);
404
405 err = usb_submit_urb(urb, mem_flags);
406 if (err < 0) {
407 BT_ERR("%s urb %p submission failed (%d)",
408 hdev->name, urb, -err);
409 usb_unanchor_urb(urb);
410 }
411
412 usb_free_urb(urb);
413
414 return err;
415 }
416
417 static 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) {
455 if (err != -EPERM)
456 BT_ERR("%s urb %p failed to resubmit (%d)",
457 hdev->name, urb, -err);
458 usb_unanchor_urb(urb);
459 }
460 }
461
462 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
463 {
464 int i, offset = 0;
465
466 BT_DBG("len %d mtu %d", len, mtu);
467
468 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
469 i++, offset += mtu, len -= mtu) {
470 urb->iso_frame_desc[i].offset = offset;
471 urb->iso_frame_desc[i].length = mtu;
472 }
473
474 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
475 urb->iso_frame_desc[i].offset = offset;
476 urb->iso_frame_desc[i].length = len;
477 i++;
478 }
479
480 urb->number_of_packets = i;
481 }
482
483 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
484 {
485 struct btusb_data *data = hdev->driver_data;
486 struct urb *urb;
487 unsigned char *buf;
488 unsigned int pipe;
489 int err, size;
490
491 BT_DBG("%s", hdev->name);
492
493 if (!data->isoc_rx_ep)
494 return -ENODEV;
495
496 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
497 if (!urb)
498 return -ENOMEM;
499
500 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
501 BTUSB_MAX_ISOC_FRAMES;
502
503 buf = kmalloc(size, mem_flags);
504 if (!buf) {
505 usb_free_urb(urb);
506 return -ENOMEM;
507 }
508
509 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
510
511 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
512 hdev, data->isoc_rx_ep->bInterval);
513
514 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
515
516 __fill_isoc_descriptor(urb, size,
517 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
518
519 usb_anchor_urb(urb, &data->isoc_anchor);
520
521 err = usb_submit_urb(urb, mem_flags);
522 if (err < 0) {
523 BT_ERR("%s urb %p submission failed (%d)",
524 hdev->name, urb, -err);
525 usb_unanchor_urb(urb);
526 }
527
528 usb_free_urb(urb);
529
530 return err;
531 }
532
533 static void btusb_tx_complete(struct urb *urb)
534 {
535 struct sk_buff *skb = urb->context;
536 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
537 struct btusb_data *data = hdev->driver_data;
538
539 BT_DBG("%s urb %p status %d count %d", hdev->name,
540 urb, urb->status, urb->actual_length);
541
542 if (!test_bit(HCI_RUNNING, &hdev->flags))
543 goto done;
544
545 if (!urb->status)
546 hdev->stat.byte_tx += urb->transfer_buffer_length;
547 else
548 hdev->stat.err_tx++;
549
550 done:
551 spin_lock(&data->txlock);
552 data->tx_in_flight--;
553 spin_unlock(&data->txlock);
554
555 kfree(urb->setup_packet);
556
557 kfree_skb(skb);
558 }
559
560 static void btusb_isoc_tx_complete(struct urb *urb)
561 {
562 struct sk_buff *skb = urb->context;
563 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
564
565 BT_DBG("%s urb %p status %d count %d", hdev->name,
566 urb, urb->status, urb->actual_length);
567
568 if (!test_bit(HCI_RUNNING, &hdev->flags))
569 goto done;
570
571 if (!urb->status)
572 hdev->stat.byte_tx += urb->transfer_buffer_length;
573 else
574 hdev->stat.err_tx++;
575
576 done:
577 kfree(urb->setup_packet);
578
579 kfree_skb(skb);
580 }
581
582 static int btusb_open(struct hci_dev *hdev)
583 {
584 struct btusb_data *data = hdev->driver_data;
585 int err;
586
587 BT_DBG("%s", hdev->name);
588
589 err = usb_autopm_get_interface(data->intf);
590 if (err < 0)
591 return err;
592
593 data->intf->needs_remote_wakeup = 1;
594
595 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
596 goto done;
597
598 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
599 goto done;
600
601 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
602 if (err < 0)
603 goto failed;
604
605 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
606 if (err < 0) {
607 usb_kill_anchored_urbs(&data->intr_anchor);
608 goto failed;
609 }
610
611 set_bit(BTUSB_BULK_RUNNING, &data->flags);
612 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
613
614 done:
615 usb_autopm_put_interface(data->intf);
616 return 0;
617
618 failed:
619 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
620 clear_bit(HCI_RUNNING, &hdev->flags);
621 usb_autopm_put_interface(data->intf);
622 return err;
623 }
624
625 static void btusb_stop_traffic(struct btusb_data *data)
626 {
627 usb_kill_anchored_urbs(&data->intr_anchor);
628 usb_kill_anchored_urbs(&data->bulk_anchor);
629 usb_kill_anchored_urbs(&data->isoc_anchor);
630 }
631
632 static int btusb_close(struct hci_dev *hdev)
633 {
634 struct btusb_data *data = hdev->driver_data;
635 int err;
636
637 BT_DBG("%s", hdev->name);
638
639 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
640 return 0;
641
642 cancel_work_sync(&data->work);
643 cancel_work_sync(&data->waker);
644
645 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
646 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
647 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
648
649 btusb_stop_traffic(data);
650 err = usb_autopm_get_interface(data->intf);
651 if (err < 0)
652 goto failed;
653
654 data->intf->needs_remote_wakeup = 0;
655 usb_autopm_put_interface(data->intf);
656
657 failed:
658 usb_scuttle_anchored_urbs(&data->deferred);
659 return 0;
660 }
661
662 static int btusb_flush(struct hci_dev *hdev)
663 {
664 struct btusb_data *data = hdev->driver_data;
665
666 BT_DBG("%s", hdev->name);
667
668 usb_kill_anchored_urbs(&data->tx_anchor);
669
670 return 0;
671 }
672
673 static int btusb_send_frame(struct sk_buff *skb)
674 {
675 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
676 struct btusb_data *data = hdev->driver_data;
677 struct usb_ctrlrequest *dr;
678 struct urb *urb;
679 unsigned int pipe;
680 int err;
681
682 BT_DBG("%s", hdev->name);
683
684 if (!test_bit(HCI_RUNNING, &hdev->flags))
685 return -EBUSY;
686
687 switch (bt_cb(skb)->pkt_type) {
688 case HCI_COMMAND_PKT:
689 urb = usb_alloc_urb(0, GFP_ATOMIC);
690 if (!urb)
691 return -ENOMEM;
692
693 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
694 if (!dr) {
695 usb_free_urb(urb);
696 return -ENOMEM;
697 }
698
699 dr->bRequestType = data->cmdreq_type;
700 dr->bRequest = 0;
701 dr->wIndex = 0;
702 dr->wValue = 0;
703 dr->wLength = __cpu_to_le16(skb->len);
704
705 pipe = usb_sndctrlpipe(data->udev, 0x00);
706
707 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
708 skb->data, skb->len, btusb_tx_complete, skb);
709
710 hdev->stat.cmd_tx++;
711 break;
712
713 case HCI_ACLDATA_PKT:
714 if (!data->bulk_tx_ep || (hdev->conn_hash.acl_num < 1 &&
715 hdev->conn_hash.le_num < 1))
716 return -ENODEV;
717
718 urb = usb_alloc_urb(0, GFP_ATOMIC);
719 if (!urb)
720 return -ENOMEM;
721
722 pipe = usb_sndbulkpipe(data->udev,
723 data->bulk_tx_ep->bEndpointAddress);
724
725 usb_fill_bulk_urb(urb, data->udev, pipe,
726 skb->data, skb->len, btusb_tx_complete, skb);
727
728 hdev->stat.acl_tx++;
729 break;
730
731 case HCI_SCODATA_PKT:
732 if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
733 return -ENODEV;
734
735 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
736 if (!urb)
737 return -ENOMEM;
738
739 pipe = usb_sndisocpipe(data->udev,
740 data->isoc_tx_ep->bEndpointAddress);
741
742 usb_fill_int_urb(urb, data->udev, pipe,
743 skb->data, skb->len, btusb_isoc_tx_complete,
744 skb, data->isoc_tx_ep->bInterval);
745
746 urb->transfer_flags = URB_ISO_ASAP;
747
748 __fill_isoc_descriptor(urb, skb->len,
749 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
750
751 hdev->stat.sco_tx++;
752 goto skip_waking;
753
754 default:
755 return -EILSEQ;
756 }
757
758 err = inc_tx(data);
759 if (err) {
760 usb_anchor_urb(urb, &data->deferred);
761 schedule_work(&data->waker);
762 err = 0;
763 goto done;
764 }
765
766 skip_waking:
767 usb_anchor_urb(urb, &data->tx_anchor);
768
769 err = usb_submit_urb(urb, GFP_ATOMIC);
770 if (err < 0) {
771 BT_ERR("%s urb %p submission failed", hdev->name, urb);
772 kfree(urb->setup_packet);
773 usb_unanchor_urb(urb);
774 } else {
775 usb_mark_last_busy(data->udev);
776 }
777
778 usb_free_urb(urb);
779
780 done:
781 return err;
782 }
783
784 static void btusb_destruct(struct hci_dev *hdev)
785 {
786 struct btusb_data *data = hdev->driver_data;
787
788 BT_DBG("%s", hdev->name);
789
790 kfree(data);
791 }
792
793 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
794 {
795 struct btusb_data *data = hdev->driver_data;
796
797 BT_DBG("%s evt %d", hdev->name, evt);
798
799 if (hdev->conn_hash.sco_num != data->sco_num) {
800 data->sco_num = hdev->conn_hash.sco_num;
801 schedule_work(&data->work);
802 }
803 }
804
805 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
806 {
807 struct btusb_data *data = hdev->driver_data;
808 struct usb_interface *intf = data->isoc;
809 struct usb_endpoint_descriptor *ep_desc;
810 int i, err;
811
812 if (!data->isoc)
813 return -ENODEV;
814
815 err = usb_set_interface(data->udev, 1, altsetting);
816 if (err < 0) {
817 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
818 return err;
819 }
820
821 data->isoc_altsetting = altsetting;
822
823 data->isoc_tx_ep = NULL;
824 data->isoc_rx_ep = NULL;
825
826 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
827 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
828
829 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
830 data->isoc_tx_ep = ep_desc;
831 continue;
832 }
833
834 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
835 data->isoc_rx_ep = ep_desc;
836 continue;
837 }
838 }
839
840 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
841 BT_ERR("%s invalid SCO descriptors", hdev->name);
842 return -ENODEV;
843 }
844
845 return 0;
846 }
847
848 static void btusb_work(struct work_struct *work)
849 {
850 struct btusb_data *data = container_of(work, struct btusb_data, work);
851 struct hci_dev *hdev = data->hdev;
852 int err;
853
854 if (hdev->conn_hash.sco_num > 0) {
855 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
856 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
857 if (err < 0) {
858 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
859 usb_kill_anchored_urbs(&data->isoc_anchor);
860 return;
861 }
862
863 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
864 }
865 if (data->isoc_altsetting != 2) {
866 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
867 usb_kill_anchored_urbs(&data->isoc_anchor);
868
869 if (__set_isoc_interface(hdev, 2) < 0)
870 return;
871 }
872
873 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
874 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
875 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
876 else
877 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
878 }
879 } else {
880 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
881 usb_kill_anchored_urbs(&data->isoc_anchor);
882
883 __set_isoc_interface(hdev, 0);
884 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
885 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
886 }
887 }
888
889 static void btusb_waker(struct work_struct *work)
890 {
891 struct btusb_data *data = container_of(work, struct btusb_data, waker);
892 int err;
893
894 err = usb_autopm_get_interface(data->intf);
895 if (err < 0)
896 return;
897
898 usb_autopm_put_interface(data->intf);
899 }
900
901 static int btusb_probe(struct usb_interface *intf,
902 const struct usb_device_id *id)
903 {
904 struct usb_endpoint_descriptor *ep_desc;
905 struct btusb_data *data;
906 struct hci_dev *hdev;
907 int i, err;
908
909 BT_DBG("intf %p id %p", intf, id);
910
911 /* interface numbers are hardcoded in the spec */
912 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
913 return -ENODEV;
914
915 if (!id->driver_info) {
916 const struct usb_device_id *match;
917 match = usb_match_id(intf, blacklist_table);
918 if (match)
919 id = match;
920 }
921
922 if (id->driver_info == BTUSB_IGNORE)
923 return -ENODEV;
924
925 if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
926 return -ENODEV;
927
928 if (ignore_csr && id->driver_info & BTUSB_CSR)
929 return -ENODEV;
930
931 if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
932 return -ENODEV;
933
934 if (id->driver_info & BTUSB_ATH3012) {
935 struct usb_device *udev = interface_to_usbdev(intf);
936
937 /* Old firmware would otherwise let ath3k driver load
938 * patch and sysconfig files */
939 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
940 return -ENODEV;
941 }
942
943 data = kzalloc(sizeof(*data), GFP_KERNEL);
944 if (!data)
945 return -ENOMEM;
946
947 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
948 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
949
950 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
951 data->intr_ep = ep_desc;
952 continue;
953 }
954
955 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
956 data->bulk_tx_ep = ep_desc;
957 continue;
958 }
959
960 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
961 data->bulk_rx_ep = ep_desc;
962 continue;
963 }
964 }
965
966 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {
967 kfree(data);
968 return -ENODEV;
969 }
970
971 data->cmdreq_type = USB_TYPE_CLASS;
972
973 data->udev = interface_to_usbdev(intf);
974 data->intf = intf;
975
976 spin_lock_init(&data->lock);
977
978 INIT_WORK(&data->work, btusb_work);
979 INIT_WORK(&data->waker, btusb_waker);
980 spin_lock_init(&data->txlock);
981
982 init_usb_anchor(&data->tx_anchor);
983 init_usb_anchor(&data->intr_anchor);
984 init_usb_anchor(&data->bulk_anchor);
985 init_usb_anchor(&data->isoc_anchor);
986 init_usb_anchor(&data->deferred);
987
988 hdev = hci_alloc_dev();
989 if (!hdev) {
990 kfree(data);
991 return -ENOMEM;
992 }
993
994 hdev->bus = HCI_USB;
995 hdev->driver_data = data;
996
997 data->hdev = hdev;
998
999 SET_HCIDEV_DEV(hdev, &intf->dev);
1000
1001 hdev->open = btusb_open;
1002 hdev->close = btusb_close;
1003 hdev->flush = btusb_flush;
1004 hdev->send = btusb_send_frame;
1005 hdev->destruct = btusb_destruct;
1006 hdev->notify = btusb_notify;
1007
1008 hdev->owner = THIS_MODULE;
1009
1010 /* Interface numbers are hardcoded in the specification */
1011 data->isoc = usb_ifnum_to_if(data->udev, 1);
1012
1013 if (!reset)
1014 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1015
1016 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1017 if (!disable_scofix)
1018 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1019 }
1020
1021 if (id->driver_info & BTUSB_BROKEN_ISOC)
1022 data->isoc = NULL;
1023
1024 if (id->driver_info & BTUSB_DIGIANSWER) {
1025 data->cmdreq_type = USB_TYPE_VENDOR;
1026 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1027 }
1028
1029 if (id->driver_info & BTUSB_CSR) {
1030 struct usb_device *udev = data->udev;
1031
1032 /* Old firmware would otherwise execute USB reset */
1033 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
1034 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1035 }
1036
1037 if (id->driver_info & BTUSB_SNIFFER) {
1038 struct usb_device *udev = data->udev;
1039
1040 /* New sniffer firmware has crippled HCI interface */
1041 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1042 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1043
1044 data->isoc = NULL;
1045 }
1046
1047 if (id->driver_info & BTUSB_BCM92035) {
1048 unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 };
1049 struct sk_buff *skb;
1050
1051 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
1052 if (skb) {
1053 memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
1054 skb_queue_tail(&hdev->driver_init, skb);
1055 }
1056 }
1057
1058 if (data->isoc) {
1059 err = usb_driver_claim_interface(&btusb_driver,
1060 data->isoc, data);
1061 if (err < 0) {
1062 hci_free_dev(hdev);
1063 kfree(data);
1064 return err;
1065 }
1066 }
1067
1068 err = hci_register_dev(hdev);
1069 if (err < 0) {
1070 hci_free_dev(hdev);
1071 kfree(data);
1072 return err;
1073 }
1074
1075 usb_set_intfdata(intf, data);
1076
1077 return 0;
1078 }
1079
1080 static void btusb_disconnect(struct usb_interface *intf)
1081 {
1082 struct btusb_data *data = usb_get_intfdata(intf);
1083 struct hci_dev *hdev;
1084
1085 BT_DBG("intf %p", intf);
1086
1087 if (!data)
1088 return;
1089
1090 hdev = data->hdev;
1091
1092 __hci_dev_hold(hdev);
1093
1094 usb_set_intfdata(data->intf, NULL);
1095
1096 if (data->isoc)
1097 usb_set_intfdata(data->isoc, NULL);
1098
1099 hci_unregister_dev(hdev);
1100
1101 if (intf == data->isoc)
1102 usb_driver_release_interface(&btusb_driver, data->intf);
1103 else if (data->isoc)
1104 usb_driver_release_interface(&btusb_driver, data->isoc);
1105
1106 __hci_dev_put(hdev);
1107
1108 hci_free_dev(hdev);
1109 }
1110
1111 #ifdef CONFIG_PM
1112 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1113 {
1114 struct btusb_data *data = usb_get_intfdata(intf);
1115
1116 BT_DBG("intf %p", intf);
1117
1118 if (data->suspend_count++)
1119 return 0;
1120
1121 spin_lock_irq(&data->txlock);
1122 if (!((message.event & PM_EVENT_AUTO) && data->tx_in_flight)) {
1123 set_bit(BTUSB_SUSPENDING, &data->flags);
1124 spin_unlock_irq(&data->txlock);
1125 } else {
1126 spin_unlock_irq(&data->txlock);
1127 data->suspend_count--;
1128 return -EBUSY;
1129 }
1130
1131 cancel_work_sync(&data->work);
1132
1133 btusb_stop_traffic(data);
1134 usb_kill_anchored_urbs(&data->tx_anchor);
1135
1136 return 0;
1137 }
1138
1139 static void play_deferred(struct btusb_data *data)
1140 {
1141 struct urb *urb;
1142 int err;
1143
1144 while ((urb = usb_get_from_anchor(&data->deferred))) {
1145 err = usb_submit_urb(urb, GFP_ATOMIC);
1146 if (err < 0)
1147 break;
1148
1149 data->tx_in_flight++;
1150 }
1151 usb_scuttle_anchored_urbs(&data->deferred);
1152 }
1153
1154 static int btusb_resume(struct usb_interface *intf)
1155 {
1156 struct btusb_data *data = usb_get_intfdata(intf);
1157 struct hci_dev *hdev = data->hdev;
1158 int err = 0;
1159
1160 BT_DBG("intf %p", intf);
1161
1162 if (--data->suspend_count)
1163 return 0;
1164
1165 if (!test_bit(HCI_RUNNING, &hdev->flags))
1166 goto done;
1167
1168 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1169 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1170 if (err < 0) {
1171 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1172 goto failed;
1173 }
1174 }
1175
1176 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1177 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1178 if (err < 0) {
1179 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1180 goto failed;
1181 }
1182
1183 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1184 }
1185
1186 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1187 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1188 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1189 else
1190 btusb_submit_isoc_urb(hdev, GFP_NOIO);
1191 }
1192
1193 spin_lock_irq(&data->txlock);
1194 play_deferred(data);
1195 clear_bit(BTUSB_SUSPENDING, &data->flags);
1196 spin_unlock_irq(&data->txlock);
1197 schedule_work(&data->work);
1198
1199 return 0;
1200
1201 failed:
1202 usb_scuttle_anchored_urbs(&data->deferred);
1203 done:
1204 spin_lock_irq(&data->txlock);
1205 clear_bit(BTUSB_SUSPENDING, &data->flags);
1206 spin_unlock_irq(&data->txlock);
1207
1208 return err;
1209 }
1210 #endif
1211
1212 static struct usb_driver btusb_driver = {
1213 .name = "btusb",
1214 .probe = btusb_probe,
1215 .disconnect = btusb_disconnect,
1216 #ifdef CONFIG_PM
1217 .suspend = btusb_suspend,
1218 .resume = btusb_resume,
1219 #endif
1220 .id_table = btusb_table,
1221 .supports_autosuspend = 1,
1222 };
1223
1224 static int __init btusb_init(void)
1225 {
1226 BT_INFO("Generic Bluetooth USB driver ver %s", VERSION);
1227
1228 return usb_register(&btusb_driver);
1229 }
1230
1231 static void __exit btusb_exit(void)
1232 {
1233 usb_deregister(&btusb_driver);
1234 }
1235
1236 module_init(btusb_init);
1237 module_exit(btusb_exit);
1238
1239 module_param(ignore_dga, bool, 0644);
1240 MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1241
1242 module_param(ignore_csr, bool, 0644);
1243 MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1244
1245 module_param(ignore_sniffer, bool, 0644);
1246 MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1247
1248 module_param(disable_scofix, bool, 0644);
1249 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1250
1251 module_param(force_scofix, bool, 0644);
1252 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1253
1254 module_param(reset, bool, 0644);
1255 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1256
1257 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1258 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1259 MODULE_VERSION(VERSION);
1260 MODULE_LICENSE("GPL");
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree