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Merge branch 'master' of git://1984.lsi.us.es/nf
[GitHub/mt8127/android_kernel_alcatel_ttab.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, 0x3008), .driver_info = BTUSB_ATH3012 },
136 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
137 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
138 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
139 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
140 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
141 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
142 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
143 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
144 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
145 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
146 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
147 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
148 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
149
150 /* Atheros AR5BBU12 with sflash firmware */
151 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
152
153 /* Atheros AR5BBU12 with sflash firmware */
154 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
155 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
156
157 /* Broadcom BCM2035 */
158 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
159 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
160 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
161
162 /* Broadcom BCM2045 */
163 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
164 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
165
166 /* IBM/Lenovo ThinkPad with Broadcom chip */
167 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
168 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
169
170 /* HP laptop with Broadcom chip */
171 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
172
173 /* Dell laptop with Broadcom chip */
174 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
175
176 /* Dell Wireless 370 and 410 devices */
177 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
178 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
179
180 /* Belkin F8T012 and F8T013 devices */
181 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
182 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
183
184 /* Asus WL-BTD202 device */
185 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
186
187 /* Kensington Bluetooth USB adapter */
188 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
189
190 /* RTX Telecom based adapters with buggy SCO support */
191 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
192 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
193
194 /* CONWISE Technology based adapters with buggy SCO support */
195 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
196
197 /* Digianswer devices */
198 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
199 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
200
201 /* CSR BlueCore Bluetooth Sniffer */
202 { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
203
204 /* Frontline ComProbe Bluetooth Sniffer */
205 { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
206
207 { } /* Terminating entry */
208 };
209
210 #define BTUSB_MAX_ISOC_FRAMES 10
211
212 #define BTUSB_INTR_RUNNING 0
213 #define BTUSB_BULK_RUNNING 1
214 #define BTUSB_ISOC_RUNNING 2
215 #define BTUSB_SUSPENDING 3
216 #define BTUSB_DID_ISO_RESUME 4
217
218 struct btusb_data {
219 struct hci_dev *hdev;
220 struct usb_device *udev;
221 struct usb_interface *intf;
222 struct usb_interface *isoc;
223
224 spinlock_t lock;
225
226 unsigned long flags;
227
228 struct work_struct work;
229 struct work_struct waker;
230
231 struct usb_anchor tx_anchor;
232 struct usb_anchor intr_anchor;
233 struct usb_anchor bulk_anchor;
234 struct usb_anchor isoc_anchor;
235 struct usb_anchor deferred;
236 int tx_in_flight;
237 spinlock_t txlock;
238
239 struct usb_endpoint_descriptor *intr_ep;
240 struct usb_endpoint_descriptor *bulk_tx_ep;
241 struct usb_endpoint_descriptor *bulk_rx_ep;
242 struct usb_endpoint_descriptor *isoc_tx_ep;
243 struct usb_endpoint_descriptor *isoc_rx_ep;
244
245 __u8 cmdreq_type;
246
247 unsigned int sco_num;
248 int isoc_altsetting;
249 int suspend_count;
250 };
251
252 static int inc_tx(struct btusb_data *data)
253 {
254 unsigned long flags;
255 int rv;
256
257 spin_lock_irqsave(&data->txlock, flags);
258 rv = test_bit(BTUSB_SUSPENDING, &data->flags);
259 if (!rv)
260 data->tx_in_flight++;
261 spin_unlock_irqrestore(&data->txlock, flags);
262
263 return rv;
264 }
265
266 static void btusb_intr_complete(struct urb *urb)
267 {
268 struct hci_dev *hdev = urb->context;
269 struct btusb_data *data = hci_get_drvdata(hdev);
270 int err;
271
272 BT_DBG("%s urb %p status %d count %d", hdev->name,
273 urb, urb->status, urb->actual_length);
274
275 if (!test_bit(HCI_RUNNING, &hdev->flags))
276 return;
277
278 if (urb->status == 0) {
279 hdev->stat.byte_rx += urb->actual_length;
280
281 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
282 urb->transfer_buffer,
283 urb->actual_length) < 0) {
284 BT_ERR("%s corrupted event packet", hdev->name);
285 hdev->stat.err_rx++;
286 }
287 }
288
289 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
290 return;
291
292 usb_mark_last_busy(data->udev);
293 usb_anchor_urb(urb, &data->intr_anchor);
294
295 err = usb_submit_urb(urb, GFP_ATOMIC);
296 if (err < 0) {
297 /* -EPERM: urb is being killed;
298 * -ENODEV: device got disconnected */
299 if (err != -EPERM && err != -ENODEV)
300 BT_ERR("%s urb %p failed to resubmit (%d)",
301 hdev->name, urb, -err);
302 usb_unanchor_urb(urb);
303 }
304 }
305
306 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
307 {
308 struct btusb_data *data = hci_get_drvdata(hdev);
309 struct urb *urb;
310 unsigned char *buf;
311 unsigned int pipe;
312 int err, size;
313
314 BT_DBG("%s", hdev->name);
315
316 if (!data->intr_ep)
317 return -ENODEV;
318
319 urb = usb_alloc_urb(0, mem_flags);
320 if (!urb)
321 return -ENOMEM;
322
323 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
324
325 buf = kmalloc(size, mem_flags);
326 if (!buf) {
327 usb_free_urb(urb);
328 return -ENOMEM;
329 }
330
331 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
332
333 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
334 btusb_intr_complete, hdev,
335 data->intr_ep->bInterval);
336
337 urb->transfer_flags |= URB_FREE_BUFFER;
338
339 usb_anchor_urb(urb, &data->intr_anchor);
340
341 err = usb_submit_urb(urb, mem_flags);
342 if (err < 0) {
343 if (err != -EPERM && err != -ENODEV)
344 BT_ERR("%s urb %p submission failed (%d)",
345 hdev->name, urb, -err);
346 usb_unanchor_urb(urb);
347 }
348
349 usb_free_urb(urb);
350
351 return err;
352 }
353
354 static void btusb_bulk_complete(struct urb *urb)
355 {
356 struct hci_dev *hdev = urb->context;
357 struct btusb_data *data = hci_get_drvdata(hdev);
358 int err;
359
360 BT_DBG("%s urb %p status %d count %d", hdev->name,
361 urb, urb->status, urb->actual_length);
362
363 if (!test_bit(HCI_RUNNING, &hdev->flags))
364 return;
365
366 if (urb->status == 0) {
367 hdev->stat.byte_rx += urb->actual_length;
368
369 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
370 urb->transfer_buffer,
371 urb->actual_length) < 0) {
372 BT_ERR("%s corrupted ACL packet", hdev->name);
373 hdev->stat.err_rx++;
374 }
375 }
376
377 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
378 return;
379
380 usb_anchor_urb(urb, &data->bulk_anchor);
381 usb_mark_last_busy(data->udev);
382
383 err = usb_submit_urb(urb, GFP_ATOMIC);
384 if (err < 0) {
385 /* -EPERM: urb is being killed;
386 * -ENODEV: device got disconnected */
387 if (err != -EPERM && err != -ENODEV)
388 BT_ERR("%s urb %p failed to resubmit (%d)",
389 hdev->name, urb, -err);
390 usb_unanchor_urb(urb);
391 }
392 }
393
394 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
395 {
396 struct btusb_data *data = hci_get_drvdata(hdev);
397 struct urb *urb;
398 unsigned char *buf;
399 unsigned int pipe;
400 int err, size = HCI_MAX_FRAME_SIZE;
401
402 BT_DBG("%s", hdev->name);
403
404 if (!data->bulk_rx_ep)
405 return -ENODEV;
406
407 urb = usb_alloc_urb(0, mem_flags);
408 if (!urb)
409 return -ENOMEM;
410
411 buf = kmalloc(size, mem_flags);
412 if (!buf) {
413 usb_free_urb(urb);
414 return -ENOMEM;
415 }
416
417 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
418
419 usb_fill_bulk_urb(urb, data->udev, pipe,
420 buf, size, btusb_bulk_complete, hdev);
421
422 urb->transfer_flags |= URB_FREE_BUFFER;
423
424 usb_mark_last_busy(data->udev);
425 usb_anchor_urb(urb, &data->bulk_anchor);
426
427 err = usb_submit_urb(urb, mem_flags);
428 if (err < 0) {
429 if (err != -EPERM && err != -ENODEV)
430 BT_ERR("%s urb %p submission failed (%d)",
431 hdev->name, urb, -err);
432 usb_unanchor_urb(urb);
433 }
434
435 usb_free_urb(urb);
436
437 return err;
438 }
439
440 static void btusb_isoc_complete(struct urb *urb)
441 {
442 struct hci_dev *hdev = urb->context;
443 struct btusb_data *data = hci_get_drvdata(hdev);
444 int i, err;
445
446 BT_DBG("%s urb %p status %d count %d", hdev->name,
447 urb, urb->status, urb->actual_length);
448
449 if (!test_bit(HCI_RUNNING, &hdev->flags))
450 return;
451
452 if (urb->status == 0) {
453 for (i = 0; i < urb->number_of_packets; i++) {
454 unsigned int offset = urb->iso_frame_desc[i].offset;
455 unsigned int length = urb->iso_frame_desc[i].actual_length;
456
457 if (urb->iso_frame_desc[i].status)
458 continue;
459
460 hdev->stat.byte_rx += length;
461
462 if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
463 urb->transfer_buffer + offset,
464 length) < 0) {
465 BT_ERR("%s corrupted SCO packet", hdev->name);
466 hdev->stat.err_rx++;
467 }
468 }
469 }
470
471 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
472 return;
473
474 usb_anchor_urb(urb, &data->isoc_anchor);
475
476 err = usb_submit_urb(urb, GFP_ATOMIC);
477 if (err < 0) {
478 /* -EPERM: urb is being killed;
479 * -ENODEV: device got disconnected */
480 if (err != -EPERM && err != -ENODEV)
481 BT_ERR("%s urb %p failed to resubmit (%d)",
482 hdev->name, urb, -err);
483 usb_unanchor_urb(urb);
484 }
485 }
486
487 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
488 {
489 int i, offset = 0;
490
491 BT_DBG("len %d mtu %d", len, mtu);
492
493 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
494 i++, offset += mtu, len -= mtu) {
495 urb->iso_frame_desc[i].offset = offset;
496 urb->iso_frame_desc[i].length = mtu;
497 }
498
499 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
500 urb->iso_frame_desc[i].offset = offset;
501 urb->iso_frame_desc[i].length = len;
502 i++;
503 }
504
505 urb->number_of_packets = i;
506 }
507
508 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
509 {
510 struct btusb_data *data = hci_get_drvdata(hdev);
511 struct urb *urb;
512 unsigned char *buf;
513 unsigned int pipe;
514 int err, size;
515
516 BT_DBG("%s", hdev->name);
517
518 if (!data->isoc_rx_ep)
519 return -ENODEV;
520
521 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
522 if (!urb)
523 return -ENOMEM;
524
525 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
526 BTUSB_MAX_ISOC_FRAMES;
527
528 buf = kmalloc(size, mem_flags);
529 if (!buf) {
530 usb_free_urb(urb);
531 return -ENOMEM;
532 }
533
534 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
535
536 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
537 hdev, data->isoc_rx_ep->bInterval);
538
539 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
540
541 __fill_isoc_descriptor(urb, size,
542 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
543
544 usb_anchor_urb(urb, &data->isoc_anchor);
545
546 err = usb_submit_urb(urb, mem_flags);
547 if (err < 0) {
548 if (err != -EPERM && err != -ENODEV)
549 BT_ERR("%s urb %p submission failed (%d)",
550 hdev->name, urb, -err);
551 usb_unanchor_urb(urb);
552 }
553
554 usb_free_urb(urb);
555
556 return err;
557 }
558
559 static void btusb_tx_complete(struct urb *urb)
560 {
561 struct sk_buff *skb = urb->context;
562 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
563 struct btusb_data *data = hci_get_drvdata(hdev);
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 spin_lock(&data->txlock);
578 data->tx_in_flight--;
579 spin_unlock(&data->txlock);
580
581 kfree(urb->setup_packet);
582
583 kfree_skb(skb);
584 }
585
586 static void btusb_isoc_tx_complete(struct urb *urb)
587 {
588 struct sk_buff *skb = urb->context;
589 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
590
591 BT_DBG("%s urb %p status %d count %d", hdev->name,
592 urb, urb->status, urb->actual_length);
593
594 if (!test_bit(HCI_RUNNING, &hdev->flags))
595 goto done;
596
597 if (!urb->status)
598 hdev->stat.byte_tx += urb->transfer_buffer_length;
599 else
600 hdev->stat.err_tx++;
601
602 done:
603 kfree(urb->setup_packet);
604
605 kfree_skb(skb);
606 }
607
608 static int btusb_open(struct hci_dev *hdev)
609 {
610 struct btusb_data *data = hci_get_drvdata(hdev);
611 int err;
612
613 BT_DBG("%s", hdev->name);
614
615 err = usb_autopm_get_interface(data->intf);
616 if (err < 0)
617 return err;
618
619 data->intf->needs_remote_wakeup = 1;
620
621 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
622 goto done;
623
624 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
625 goto done;
626
627 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
628 if (err < 0)
629 goto failed;
630
631 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
632 if (err < 0) {
633 usb_kill_anchored_urbs(&data->intr_anchor);
634 goto failed;
635 }
636
637 set_bit(BTUSB_BULK_RUNNING, &data->flags);
638 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
639
640 done:
641 usb_autopm_put_interface(data->intf);
642 return 0;
643
644 failed:
645 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
646 clear_bit(HCI_RUNNING, &hdev->flags);
647 usb_autopm_put_interface(data->intf);
648 return err;
649 }
650
651 static void btusb_stop_traffic(struct btusb_data *data)
652 {
653 usb_kill_anchored_urbs(&data->intr_anchor);
654 usb_kill_anchored_urbs(&data->bulk_anchor);
655 usb_kill_anchored_urbs(&data->isoc_anchor);
656 }
657
658 static int btusb_close(struct hci_dev *hdev)
659 {
660 struct btusb_data *data = hci_get_drvdata(hdev);
661 int err;
662
663 BT_DBG("%s", hdev->name);
664
665 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
666 return 0;
667
668 cancel_work_sync(&data->work);
669 cancel_work_sync(&data->waker);
670
671 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
672 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
673 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
674
675 btusb_stop_traffic(data);
676 err = usb_autopm_get_interface(data->intf);
677 if (err < 0)
678 goto failed;
679
680 data->intf->needs_remote_wakeup = 0;
681 usb_autopm_put_interface(data->intf);
682
683 failed:
684 usb_scuttle_anchored_urbs(&data->deferred);
685 return 0;
686 }
687
688 static int btusb_flush(struct hci_dev *hdev)
689 {
690 struct btusb_data *data = hci_get_drvdata(hdev);
691
692 BT_DBG("%s", hdev->name);
693
694 usb_kill_anchored_urbs(&data->tx_anchor);
695
696 return 0;
697 }
698
699 static int btusb_send_frame(struct sk_buff *skb)
700 {
701 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
702 struct btusb_data *data = hci_get_drvdata(hdev);
703 struct usb_ctrlrequest *dr;
704 struct urb *urb;
705 unsigned int pipe;
706 int err;
707
708 BT_DBG("%s", hdev->name);
709
710 if (!test_bit(HCI_RUNNING, &hdev->flags))
711 return -EBUSY;
712
713 switch (bt_cb(skb)->pkt_type) {
714 case HCI_COMMAND_PKT:
715 urb = usb_alloc_urb(0, GFP_ATOMIC);
716 if (!urb)
717 return -ENOMEM;
718
719 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
720 if (!dr) {
721 usb_free_urb(urb);
722 return -ENOMEM;
723 }
724
725 dr->bRequestType = data->cmdreq_type;
726 dr->bRequest = 0;
727 dr->wIndex = 0;
728 dr->wValue = 0;
729 dr->wLength = __cpu_to_le16(skb->len);
730
731 pipe = usb_sndctrlpipe(data->udev, 0x00);
732
733 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
734 skb->data, skb->len, btusb_tx_complete, skb);
735
736 hdev->stat.cmd_tx++;
737 break;
738
739 case HCI_ACLDATA_PKT:
740 if (!data->bulk_tx_ep)
741 return -ENODEV;
742
743 urb = usb_alloc_urb(0, GFP_ATOMIC);
744 if (!urb)
745 return -ENOMEM;
746
747 pipe = usb_sndbulkpipe(data->udev,
748 data->bulk_tx_ep->bEndpointAddress);
749
750 usb_fill_bulk_urb(urb, data->udev, pipe,
751 skb->data, skb->len, btusb_tx_complete, skb);
752
753 hdev->stat.acl_tx++;
754 break;
755
756 case HCI_SCODATA_PKT:
757 if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
758 return -ENODEV;
759
760 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
761 if (!urb)
762 return -ENOMEM;
763
764 pipe = usb_sndisocpipe(data->udev,
765 data->isoc_tx_ep->bEndpointAddress);
766
767 usb_fill_int_urb(urb, data->udev, pipe,
768 skb->data, skb->len, btusb_isoc_tx_complete,
769 skb, data->isoc_tx_ep->bInterval);
770
771 urb->transfer_flags = URB_ISO_ASAP;
772
773 __fill_isoc_descriptor(urb, skb->len,
774 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
775
776 hdev->stat.sco_tx++;
777 goto skip_waking;
778
779 default:
780 return -EILSEQ;
781 }
782
783 err = inc_tx(data);
784 if (err) {
785 usb_anchor_urb(urb, &data->deferred);
786 schedule_work(&data->waker);
787 err = 0;
788 goto done;
789 }
790
791 skip_waking:
792 usb_anchor_urb(urb, &data->tx_anchor);
793
794 err = usb_submit_urb(urb, GFP_ATOMIC);
795 if (err < 0) {
796 if (err != -EPERM && err != -ENODEV)
797 BT_ERR("%s urb %p submission failed (%d)",
798 hdev->name, urb, -err);
799 kfree(urb->setup_packet);
800 usb_unanchor_urb(urb);
801 } else {
802 usb_mark_last_busy(data->udev);
803 }
804
805 done:
806 usb_free_urb(urb);
807 return err;
808 }
809
810 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
811 {
812 struct btusb_data *data = hci_get_drvdata(hdev);
813
814 BT_DBG("%s evt %d", hdev->name, evt);
815
816 if (hdev->conn_hash.sco_num != data->sco_num) {
817 data->sco_num = hdev->conn_hash.sco_num;
818 schedule_work(&data->work);
819 }
820 }
821
822 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
823 {
824 struct btusb_data *data = hci_get_drvdata(hdev);
825 struct usb_interface *intf = data->isoc;
826 struct usb_endpoint_descriptor *ep_desc;
827 int i, err;
828
829 if (!data->isoc)
830 return -ENODEV;
831
832 err = usb_set_interface(data->udev, 1, altsetting);
833 if (err < 0) {
834 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
835 return err;
836 }
837
838 data->isoc_altsetting = altsetting;
839
840 data->isoc_tx_ep = NULL;
841 data->isoc_rx_ep = NULL;
842
843 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
844 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
845
846 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
847 data->isoc_tx_ep = ep_desc;
848 continue;
849 }
850
851 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
852 data->isoc_rx_ep = ep_desc;
853 continue;
854 }
855 }
856
857 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
858 BT_ERR("%s invalid SCO descriptors", hdev->name);
859 return -ENODEV;
860 }
861
862 return 0;
863 }
864
865 static void btusb_work(struct work_struct *work)
866 {
867 struct btusb_data *data = container_of(work, struct btusb_data, work);
868 struct hci_dev *hdev = data->hdev;
869 int new_alts;
870 int err;
871
872 if (hdev->conn_hash.sco_num > 0) {
873 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
874 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
875 if (err < 0) {
876 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
877 usb_kill_anchored_urbs(&data->isoc_anchor);
878 return;
879 }
880
881 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
882 }
883
884 if (hdev->voice_setting & 0x0020) {
885 static const int alts[3] = { 2, 4, 5 };
886 new_alts = alts[hdev->conn_hash.sco_num - 1];
887 } else {
888 new_alts = hdev->conn_hash.sco_num;
889 }
890
891 if (data->isoc_altsetting != new_alts) {
892 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
893 usb_kill_anchored_urbs(&data->isoc_anchor);
894
895 if (__set_isoc_interface(hdev, new_alts) < 0)
896 return;
897 }
898
899 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
900 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
901 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
902 else
903 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
904 }
905 } else {
906 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
907 usb_kill_anchored_urbs(&data->isoc_anchor);
908
909 __set_isoc_interface(hdev, 0);
910 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
911 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
912 }
913 }
914
915 static void btusb_waker(struct work_struct *work)
916 {
917 struct btusb_data *data = container_of(work, struct btusb_data, waker);
918 int err;
919
920 err = usb_autopm_get_interface(data->intf);
921 if (err < 0)
922 return;
923
924 usb_autopm_put_interface(data->intf);
925 }
926
927 static int btusb_probe(struct usb_interface *intf,
928 const struct usb_device_id *id)
929 {
930 struct usb_endpoint_descriptor *ep_desc;
931 struct btusb_data *data;
932 struct hci_dev *hdev;
933 int i, err;
934
935 BT_DBG("intf %p id %p", intf, id);
936
937 /* interface numbers are hardcoded in the spec */
938 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
939 return -ENODEV;
940
941 if (!id->driver_info) {
942 const struct usb_device_id *match;
943 match = usb_match_id(intf, blacklist_table);
944 if (match)
945 id = match;
946 }
947
948 if (id->driver_info == BTUSB_IGNORE)
949 return -ENODEV;
950
951 if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
952 return -ENODEV;
953
954 if (ignore_csr && id->driver_info & BTUSB_CSR)
955 return -ENODEV;
956
957 if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
958 return -ENODEV;
959
960 if (id->driver_info & BTUSB_ATH3012) {
961 struct usb_device *udev = interface_to_usbdev(intf);
962
963 /* Old firmware would otherwise let ath3k driver load
964 * patch and sysconfig files */
965 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
966 return -ENODEV;
967 }
968
969 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
970 if (!data)
971 return -ENOMEM;
972
973 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
974 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
975
976 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
977 data->intr_ep = ep_desc;
978 continue;
979 }
980
981 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
982 data->bulk_tx_ep = ep_desc;
983 continue;
984 }
985
986 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
987 data->bulk_rx_ep = ep_desc;
988 continue;
989 }
990 }
991
992 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
993 return -ENODEV;
994
995 data->cmdreq_type = USB_TYPE_CLASS;
996
997 data->udev = interface_to_usbdev(intf);
998 data->intf = intf;
999
1000 spin_lock_init(&data->lock);
1001
1002 INIT_WORK(&data->work, btusb_work);
1003 INIT_WORK(&data->waker, btusb_waker);
1004 spin_lock_init(&data->txlock);
1005
1006 init_usb_anchor(&data->tx_anchor);
1007 init_usb_anchor(&data->intr_anchor);
1008 init_usb_anchor(&data->bulk_anchor);
1009 init_usb_anchor(&data->isoc_anchor);
1010 init_usb_anchor(&data->deferred);
1011
1012 hdev = hci_alloc_dev();
1013 if (!hdev)
1014 return -ENOMEM;
1015
1016 hdev->bus = HCI_USB;
1017 hci_set_drvdata(hdev, data);
1018
1019 data->hdev = hdev;
1020
1021 SET_HCIDEV_DEV(hdev, &intf->dev);
1022
1023 hdev->open = btusb_open;
1024 hdev->close = btusb_close;
1025 hdev->flush = btusb_flush;
1026 hdev->send = btusb_send_frame;
1027 hdev->notify = btusb_notify;
1028
1029 /* Interface numbers are hardcoded in the specification */
1030 data->isoc = usb_ifnum_to_if(data->udev, 1);
1031
1032 if (!reset)
1033 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1034
1035 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1036 if (!disable_scofix)
1037 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1038 }
1039
1040 if (id->driver_info & BTUSB_BROKEN_ISOC)
1041 data->isoc = NULL;
1042
1043 if (id->driver_info & BTUSB_DIGIANSWER) {
1044 data->cmdreq_type = USB_TYPE_VENDOR;
1045 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1046 }
1047
1048 if (id->driver_info & BTUSB_CSR) {
1049 struct usb_device *udev = data->udev;
1050
1051 /* Old firmware would otherwise execute USB reset */
1052 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
1053 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1054 }
1055
1056 if (id->driver_info & BTUSB_SNIFFER) {
1057 struct usb_device *udev = data->udev;
1058
1059 /* New sniffer firmware has crippled HCI interface */
1060 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1061 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1062
1063 data->isoc = NULL;
1064 }
1065
1066 if (id->driver_info & BTUSB_BCM92035) {
1067 unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 };
1068 struct sk_buff *skb;
1069
1070 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
1071 if (skb) {
1072 memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
1073 skb_queue_tail(&hdev->driver_init, skb);
1074 }
1075 }
1076
1077 if (data->isoc) {
1078 err = usb_driver_claim_interface(&btusb_driver,
1079 data->isoc, data);
1080 if (err < 0) {
1081 hci_free_dev(hdev);
1082 return err;
1083 }
1084 }
1085
1086 err = hci_register_dev(hdev);
1087 if (err < 0) {
1088 hci_free_dev(hdev);
1089 return err;
1090 }
1091
1092 usb_set_intfdata(intf, data);
1093
1094 return 0;
1095 }
1096
1097 static void btusb_disconnect(struct usb_interface *intf)
1098 {
1099 struct btusb_data *data = usb_get_intfdata(intf);
1100 struct hci_dev *hdev;
1101
1102 BT_DBG("intf %p", intf);
1103
1104 if (!data)
1105 return;
1106
1107 hdev = data->hdev;
1108 usb_set_intfdata(data->intf, NULL);
1109
1110 if (data->isoc)
1111 usb_set_intfdata(data->isoc, NULL);
1112
1113 hci_unregister_dev(hdev);
1114
1115 if (intf == data->isoc)
1116 usb_driver_release_interface(&btusb_driver, data->intf);
1117 else if (data->isoc)
1118 usb_driver_release_interface(&btusb_driver, data->isoc);
1119
1120 hci_free_dev(hdev);
1121 }
1122
1123 #ifdef CONFIG_PM
1124 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1125 {
1126 struct btusb_data *data = usb_get_intfdata(intf);
1127
1128 BT_DBG("intf %p", intf);
1129
1130 if (data->suspend_count++)
1131 return 0;
1132
1133 spin_lock_irq(&data->txlock);
1134 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
1135 set_bit(BTUSB_SUSPENDING, &data->flags);
1136 spin_unlock_irq(&data->txlock);
1137 } else {
1138 spin_unlock_irq(&data->txlock);
1139 data->suspend_count--;
1140 return -EBUSY;
1141 }
1142
1143 cancel_work_sync(&data->work);
1144
1145 btusb_stop_traffic(data);
1146 usb_kill_anchored_urbs(&data->tx_anchor);
1147
1148 return 0;
1149 }
1150
1151 static void play_deferred(struct btusb_data *data)
1152 {
1153 struct urb *urb;
1154 int err;
1155
1156 while ((urb = usb_get_from_anchor(&data->deferred))) {
1157 err = usb_submit_urb(urb, GFP_ATOMIC);
1158 if (err < 0)
1159 break;
1160
1161 data->tx_in_flight++;
1162 }
1163 usb_scuttle_anchored_urbs(&data->deferred);
1164 }
1165
1166 static int btusb_resume(struct usb_interface *intf)
1167 {
1168 struct btusb_data *data = usb_get_intfdata(intf);
1169 struct hci_dev *hdev = data->hdev;
1170 int err = 0;
1171
1172 BT_DBG("intf %p", intf);
1173
1174 if (--data->suspend_count)
1175 return 0;
1176
1177 if (!test_bit(HCI_RUNNING, &hdev->flags))
1178 goto done;
1179
1180 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1181 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1182 if (err < 0) {
1183 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1184 goto failed;
1185 }
1186 }
1187
1188 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1189 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1190 if (err < 0) {
1191 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1192 goto failed;
1193 }
1194
1195 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1196 }
1197
1198 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1199 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1200 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1201 else
1202 btusb_submit_isoc_urb(hdev, GFP_NOIO);
1203 }
1204
1205 spin_lock_irq(&data->txlock);
1206 play_deferred(data);
1207 clear_bit(BTUSB_SUSPENDING, &data->flags);
1208 spin_unlock_irq(&data->txlock);
1209 schedule_work(&data->work);
1210
1211 return 0;
1212
1213 failed:
1214 usb_scuttle_anchored_urbs(&data->deferred);
1215 done:
1216 spin_lock_irq(&data->txlock);
1217 clear_bit(BTUSB_SUSPENDING, &data->flags);
1218 spin_unlock_irq(&data->txlock);
1219
1220 return err;
1221 }
1222 #endif
1223
1224 static struct usb_driver btusb_driver = {
1225 .name = "btusb",
1226 .probe = btusb_probe,
1227 .disconnect = btusb_disconnect,
1228 #ifdef CONFIG_PM
1229 .suspend = btusb_suspend,
1230 .resume = btusb_resume,
1231 #endif
1232 .id_table = btusb_table,
1233 .supports_autosuspend = 1,
1234 .disable_hub_initiated_lpm = 1,
1235 };
1236
1237 module_usb_driver(btusb_driver);
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");
kernel source for telekom puls (alcatel/mediatek)