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Merge tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux
[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 #include <linux/firmware.h>
27
28 #include <net/bluetooth/bluetooth.h>
29 #include <net/bluetooth/hci_core.h>
30
31 #define VERSION "0.6"
32
33 static bool ignore_dga;
34 static bool ignore_csr;
35 static bool ignore_sniffer;
36 static bool disable_scofix;
37 static bool force_scofix;
38
39 static bool reset = 1;
40
41 static struct usb_driver btusb_driver;
42
43 #define BTUSB_IGNORE 0x01
44 #define BTUSB_DIGIANSWER 0x02
45 #define BTUSB_CSR 0x04
46 #define BTUSB_SNIFFER 0x08
47 #define BTUSB_BCM92035 0x10
48 #define BTUSB_BROKEN_ISOC 0x20
49 #define BTUSB_WRONG_SCO_MTU 0x40
50 #define BTUSB_ATH3012 0x80
51 #define BTUSB_INTEL 0x100
52
53 static struct usb_device_id btusb_table[] = {
54 /* Generic Bluetooth USB device */
55 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
56
57 /* Apple-specific (Broadcom) devices */
58 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01) },
59
60 /* Broadcom SoftSailing reporting vendor specific */
61 { USB_DEVICE(0x0a5c, 0x21e1) },
62
63 /* Apple MacBookPro 7,1 */
64 { USB_DEVICE(0x05ac, 0x8213) },
65
66 /* Apple iMac11,1 */
67 { USB_DEVICE(0x05ac, 0x8215) },
68
69 /* Apple MacBookPro6,2 */
70 { USB_DEVICE(0x05ac, 0x8218) },
71
72 /* Apple MacBookAir3,1, MacBookAir3,2 */
73 { USB_DEVICE(0x05ac, 0x821b) },
74
75 /* Apple MacBookAir4,1 */
76 { USB_DEVICE(0x05ac, 0x821f) },
77
78 /* Apple MacBookPro8,2 */
79 { USB_DEVICE(0x05ac, 0x821a) },
80
81 /* Apple MacMini5,1 */
82 { USB_DEVICE(0x05ac, 0x8281) },
83
84 /* AVM BlueFRITZ! USB v2.0 */
85 { USB_DEVICE(0x057c, 0x3800) },
86
87 /* Bluetooth Ultraport Module from IBM */
88 { USB_DEVICE(0x04bf, 0x030a) },
89
90 /* ALPS Modules with non-standard id */
91 { USB_DEVICE(0x044e, 0x3001) },
92 { USB_DEVICE(0x044e, 0x3002) },
93
94 /* Ericsson with non-standard id */
95 { USB_DEVICE(0x0bdb, 0x1002) },
96
97 /* Canyon CN-BTU1 with HID interfaces */
98 { USB_DEVICE(0x0c10, 0x0000) },
99
100 /* Broadcom BCM20702A0 */
101 { USB_DEVICE(0x0b05, 0x17b5) },
102 { USB_DEVICE(0x04ca, 0x2003) },
103 { USB_DEVICE(0x0489, 0xe042) },
104 { USB_DEVICE(0x413c, 0x8197) },
105
106 /* Foxconn - Hon Hai */
107 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01) },
108
109 /*Broadcom devices with vendor specific id */
110 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01) },
111
112 { } /* Terminating entry */
113 };
114
115 MODULE_DEVICE_TABLE(usb, btusb_table);
116
117 static struct usb_device_id blacklist_table[] = {
118 /* CSR BlueCore devices */
119 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
120
121 /* Broadcom BCM2033 without firmware */
122 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
123
124 /* Atheros 3011 with sflash firmware */
125 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
126 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
127 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
128 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
129 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
130 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
131
132 /* Atheros AR9285 Malbec with sflash firmware */
133 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
134
135 /* Atheros 3012 with sflash firmware */
136 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
137 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
138 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
139 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
140 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
141 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
142 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
143 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
144 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
145 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
146 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
147 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
148 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
149 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
150 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
151 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
152 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
153 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
154
155 /* Atheros AR5BBU12 with sflash firmware */
156 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
157
158 /* Atheros AR5BBU12 with sflash firmware */
159 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
160 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
161
162 /* Broadcom BCM2035 */
163 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
164 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
165 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
166
167 /* Broadcom BCM2045 */
168 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
169 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
170
171 /* IBM/Lenovo ThinkPad with Broadcom chip */
172 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
173 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
174
175 /* HP laptop with Broadcom chip */
176 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
177
178 /* Dell laptop with Broadcom chip */
179 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
180
181 /* Dell Wireless 370 and 410 devices */
182 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
183 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
184
185 /* Belkin F8T012 and F8T013 devices */
186 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
187 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
188
189 /* Asus WL-BTD202 device */
190 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
191
192 /* Kensington Bluetooth USB adapter */
193 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
194
195 /* RTX Telecom based adapters with buggy SCO support */
196 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
197 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
198
199 /* CONWISE Technology based adapters with buggy SCO support */
200 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
201
202 /* Digianswer devices */
203 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
204 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
205
206 /* CSR BlueCore Bluetooth Sniffer */
207 { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
208
209 /* Frontline ComProbe Bluetooth Sniffer */
210 { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
211
212 /* Intel Bluetooth device */
213 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
214
215 { } /* Terminating entry */
216 };
217
218 #define BTUSB_MAX_ISOC_FRAMES 10
219
220 #define BTUSB_INTR_RUNNING 0
221 #define BTUSB_BULK_RUNNING 1
222 #define BTUSB_ISOC_RUNNING 2
223 #define BTUSB_SUSPENDING 3
224 #define BTUSB_DID_ISO_RESUME 4
225
226 struct btusb_data {
227 struct hci_dev *hdev;
228 struct usb_device *udev;
229 struct usb_interface *intf;
230 struct usb_interface *isoc;
231
232 spinlock_t lock;
233
234 unsigned long flags;
235
236 struct work_struct work;
237 struct work_struct waker;
238
239 struct usb_anchor tx_anchor;
240 struct usb_anchor intr_anchor;
241 struct usb_anchor bulk_anchor;
242 struct usb_anchor isoc_anchor;
243 struct usb_anchor deferred;
244 int tx_in_flight;
245 spinlock_t txlock;
246
247 struct usb_endpoint_descriptor *intr_ep;
248 struct usb_endpoint_descriptor *bulk_tx_ep;
249 struct usb_endpoint_descriptor *bulk_rx_ep;
250 struct usb_endpoint_descriptor *isoc_tx_ep;
251 struct usb_endpoint_descriptor *isoc_rx_ep;
252
253 __u8 cmdreq_type;
254
255 unsigned int sco_num;
256 int isoc_altsetting;
257 int suspend_count;
258 };
259
260 static int inc_tx(struct btusb_data *data)
261 {
262 unsigned long flags;
263 int rv;
264
265 spin_lock_irqsave(&data->txlock, flags);
266 rv = test_bit(BTUSB_SUSPENDING, &data->flags);
267 if (!rv)
268 data->tx_in_flight++;
269 spin_unlock_irqrestore(&data->txlock, flags);
270
271 return rv;
272 }
273
274 static void btusb_intr_complete(struct urb *urb)
275 {
276 struct hci_dev *hdev = urb->context;
277 struct btusb_data *data = hci_get_drvdata(hdev);
278 int err;
279
280 BT_DBG("%s urb %p status %d count %d", hdev->name,
281 urb, urb->status, urb->actual_length);
282
283 if (!test_bit(HCI_RUNNING, &hdev->flags))
284 return;
285
286 if (urb->status == 0) {
287 hdev->stat.byte_rx += urb->actual_length;
288
289 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
290 urb->transfer_buffer,
291 urb->actual_length) < 0) {
292 BT_ERR("%s corrupted event packet", hdev->name);
293 hdev->stat.err_rx++;
294 }
295 }
296
297 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
298 return;
299
300 usb_mark_last_busy(data->udev);
301 usb_anchor_urb(urb, &data->intr_anchor);
302
303 err = usb_submit_urb(urb, GFP_ATOMIC);
304 if (err < 0) {
305 /* -EPERM: urb is being killed;
306 * -ENODEV: device got disconnected */
307 if (err != -EPERM && err != -ENODEV)
308 BT_ERR("%s urb %p failed to resubmit (%d)",
309 hdev->name, urb, -err);
310 usb_unanchor_urb(urb);
311 }
312 }
313
314 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
315 {
316 struct btusb_data *data = hci_get_drvdata(hdev);
317 struct urb *urb;
318 unsigned char *buf;
319 unsigned int pipe;
320 int err, size;
321
322 BT_DBG("%s", hdev->name);
323
324 if (!data->intr_ep)
325 return -ENODEV;
326
327 urb = usb_alloc_urb(0, mem_flags);
328 if (!urb)
329 return -ENOMEM;
330
331 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
332
333 buf = kmalloc(size, mem_flags);
334 if (!buf) {
335 usb_free_urb(urb);
336 return -ENOMEM;
337 }
338
339 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
340
341 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
342 btusb_intr_complete, hdev,
343 data->intr_ep->bInterval);
344
345 urb->transfer_flags |= URB_FREE_BUFFER;
346
347 usb_anchor_urb(urb, &data->intr_anchor);
348
349 err = usb_submit_urb(urb, mem_flags);
350 if (err < 0) {
351 if (err != -EPERM && err != -ENODEV)
352 BT_ERR("%s urb %p submission failed (%d)",
353 hdev->name, urb, -err);
354 usb_unanchor_urb(urb);
355 }
356
357 usb_free_urb(urb);
358
359 return err;
360 }
361
362 static void btusb_bulk_complete(struct urb *urb)
363 {
364 struct hci_dev *hdev = urb->context;
365 struct btusb_data *data = hci_get_drvdata(hdev);
366 int err;
367
368 BT_DBG("%s urb %p status %d count %d", hdev->name,
369 urb, urb->status, urb->actual_length);
370
371 if (!test_bit(HCI_RUNNING, &hdev->flags))
372 return;
373
374 if (urb->status == 0) {
375 hdev->stat.byte_rx += urb->actual_length;
376
377 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
378 urb->transfer_buffer,
379 urb->actual_length) < 0) {
380 BT_ERR("%s corrupted ACL packet", hdev->name);
381 hdev->stat.err_rx++;
382 }
383 }
384
385 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
386 return;
387
388 usb_anchor_urb(urb, &data->bulk_anchor);
389 usb_mark_last_busy(data->udev);
390
391 err = usb_submit_urb(urb, GFP_ATOMIC);
392 if (err < 0) {
393 /* -EPERM: urb is being killed;
394 * -ENODEV: device got disconnected */
395 if (err != -EPERM && err != -ENODEV)
396 BT_ERR("%s urb %p failed to resubmit (%d)",
397 hdev->name, urb, -err);
398 usb_unanchor_urb(urb);
399 }
400 }
401
402 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
403 {
404 struct btusb_data *data = hci_get_drvdata(hdev);
405 struct urb *urb;
406 unsigned char *buf;
407 unsigned int pipe;
408 int err, size = HCI_MAX_FRAME_SIZE;
409
410 BT_DBG("%s", hdev->name);
411
412 if (!data->bulk_rx_ep)
413 return -ENODEV;
414
415 urb = usb_alloc_urb(0, mem_flags);
416 if (!urb)
417 return -ENOMEM;
418
419 buf = kmalloc(size, mem_flags);
420 if (!buf) {
421 usb_free_urb(urb);
422 return -ENOMEM;
423 }
424
425 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
426
427 usb_fill_bulk_urb(urb, data->udev, pipe,
428 buf, size, btusb_bulk_complete, hdev);
429
430 urb->transfer_flags |= URB_FREE_BUFFER;
431
432 usb_mark_last_busy(data->udev);
433 usb_anchor_urb(urb, &data->bulk_anchor);
434
435 err = usb_submit_urb(urb, mem_flags);
436 if (err < 0) {
437 if (err != -EPERM && err != -ENODEV)
438 BT_ERR("%s urb %p submission failed (%d)",
439 hdev->name, urb, -err);
440 usb_unanchor_urb(urb);
441 }
442
443 usb_free_urb(urb);
444
445 return err;
446 }
447
448 static void btusb_isoc_complete(struct urb *urb)
449 {
450 struct hci_dev *hdev = urb->context;
451 struct btusb_data *data = hci_get_drvdata(hdev);
452 int i, err;
453
454 BT_DBG("%s urb %p status %d count %d", hdev->name,
455 urb, urb->status, urb->actual_length);
456
457 if (!test_bit(HCI_RUNNING, &hdev->flags))
458 return;
459
460 if (urb->status == 0) {
461 for (i = 0; i < urb->number_of_packets; i++) {
462 unsigned int offset = urb->iso_frame_desc[i].offset;
463 unsigned int length = urb->iso_frame_desc[i].actual_length;
464
465 if (urb->iso_frame_desc[i].status)
466 continue;
467
468 hdev->stat.byte_rx += length;
469
470 if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
471 urb->transfer_buffer + offset,
472 length) < 0) {
473 BT_ERR("%s corrupted SCO packet", hdev->name);
474 hdev->stat.err_rx++;
475 }
476 }
477 }
478
479 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
480 return;
481
482 usb_anchor_urb(urb, &data->isoc_anchor);
483
484 err = usb_submit_urb(urb, GFP_ATOMIC);
485 if (err < 0) {
486 /* -EPERM: urb is being killed;
487 * -ENODEV: device got disconnected */
488 if (err != -EPERM && err != -ENODEV)
489 BT_ERR("%s urb %p failed to resubmit (%d)",
490 hdev->name, urb, -err);
491 usb_unanchor_urb(urb);
492 }
493 }
494
495 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
496 {
497 int i, offset = 0;
498
499 BT_DBG("len %d mtu %d", len, mtu);
500
501 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
502 i++, offset += mtu, len -= mtu) {
503 urb->iso_frame_desc[i].offset = offset;
504 urb->iso_frame_desc[i].length = mtu;
505 }
506
507 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
508 urb->iso_frame_desc[i].offset = offset;
509 urb->iso_frame_desc[i].length = len;
510 i++;
511 }
512
513 urb->number_of_packets = i;
514 }
515
516 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
517 {
518 struct btusb_data *data = hci_get_drvdata(hdev);
519 struct urb *urb;
520 unsigned char *buf;
521 unsigned int pipe;
522 int err, size;
523
524 BT_DBG("%s", hdev->name);
525
526 if (!data->isoc_rx_ep)
527 return -ENODEV;
528
529 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
530 if (!urb)
531 return -ENOMEM;
532
533 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
534 BTUSB_MAX_ISOC_FRAMES;
535
536 buf = kmalloc(size, mem_flags);
537 if (!buf) {
538 usb_free_urb(urb);
539 return -ENOMEM;
540 }
541
542 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
543
544 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
545 hdev, data->isoc_rx_ep->bInterval);
546
547 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
548
549 __fill_isoc_descriptor(urb, size,
550 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
551
552 usb_anchor_urb(urb, &data->isoc_anchor);
553
554 err = usb_submit_urb(urb, mem_flags);
555 if (err < 0) {
556 if (err != -EPERM && err != -ENODEV)
557 BT_ERR("%s urb %p submission failed (%d)",
558 hdev->name, urb, -err);
559 usb_unanchor_urb(urb);
560 }
561
562 usb_free_urb(urb);
563
564 return err;
565 }
566
567 static void btusb_tx_complete(struct urb *urb)
568 {
569 struct sk_buff *skb = urb->context;
570 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
571 struct btusb_data *data = hci_get_drvdata(hdev);
572
573 BT_DBG("%s urb %p status %d count %d", hdev->name,
574 urb, urb->status, urb->actual_length);
575
576 if (!test_bit(HCI_RUNNING, &hdev->flags))
577 goto done;
578
579 if (!urb->status)
580 hdev->stat.byte_tx += urb->transfer_buffer_length;
581 else
582 hdev->stat.err_tx++;
583
584 done:
585 spin_lock(&data->txlock);
586 data->tx_in_flight--;
587 spin_unlock(&data->txlock);
588
589 kfree(urb->setup_packet);
590
591 kfree_skb(skb);
592 }
593
594 static void btusb_isoc_tx_complete(struct urb *urb)
595 {
596 struct sk_buff *skb = urb->context;
597 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
598
599 BT_DBG("%s urb %p status %d count %d", hdev->name,
600 urb, urb->status, urb->actual_length);
601
602 if (!test_bit(HCI_RUNNING, &hdev->flags))
603 goto done;
604
605 if (!urb->status)
606 hdev->stat.byte_tx += urb->transfer_buffer_length;
607 else
608 hdev->stat.err_tx++;
609
610 done:
611 kfree(urb->setup_packet);
612
613 kfree_skb(skb);
614 }
615
616 static int btusb_open(struct hci_dev *hdev)
617 {
618 struct btusb_data *data = hci_get_drvdata(hdev);
619 int err;
620
621 BT_DBG("%s", hdev->name);
622
623 err = usb_autopm_get_interface(data->intf);
624 if (err < 0)
625 return err;
626
627 data->intf->needs_remote_wakeup = 1;
628
629 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
630 goto done;
631
632 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
633 goto done;
634
635 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
636 if (err < 0)
637 goto failed;
638
639 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
640 if (err < 0) {
641 usb_kill_anchored_urbs(&data->intr_anchor);
642 goto failed;
643 }
644
645 set_bit(BTUSB_BULK_RUNNING, &data->flags);
646 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
647
648 done:
649 usb_autopm_put_interface(data->intf);
650 return 0;
651
652 failed:
653 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
654 clear_bit(HCI_RUNNING, &hdev->flags);
655 usb_autopm_put_interface(data->intf);
656 return err;
657 }
658
659 static void btusb_stop_traffic(struct btusb_data *data)
660 {
661 usb_kill_anchored_urbs(&data->intr_anchor);
662 usb_kill_anchored_urbs(&data->bulk_anchor);
663 usb_kill_anchored_urbs(&data->isoc_anchor);
664 }
665
666 static int btusb_close(struct hci_dev *hdev)
667 {
668 struct btusb_data *data = hci_get_drvdata(hdev);
669 int err;
670
671 BT_DBG("%s", hdev->name);
672
673 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
674 return 0;
675
676 cancel_work_sync(&data->work);
677 cancel_work_sync(&data->waker);
678
679 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
680 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
681 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
682
683 btusb_stop_traffic(data);
684 err = usb_autopm_get_interface(data->intf);
685 if (err < 0)
686 goto failed;
687
688 data->intf->needs_remote_wakeup = 0;
689 usb_autopm_put_interface(data->intf);
690
691 failed:
692 usb_scuttle_anchored_urbs(&data->deferred);
693 return 0;
694 }
695
696 static int btusb_flush(struct hci_dev *hdev)
697 {
698 struct btusb_data *data = hci_get_drvdata(hdev);
699
700 BT_DBG("%s", hdev->name);
701
702 usb_kill_anchored_urbs(&data->tx_anchor);
703
704 return 0;
705 }
706
707 static int btusb_send_frame(struct sk_buff *skb)
708 {
709 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
710 struct btusb_data *data = hci_get_drvdata(hdev);
711 struct usb_ctrlrequest *dr;
712 struct urb *urb;
713 unsigned int pipe;
714 int err;
715
716 BT_DBG("%s", hdev->name);
717
718 if (!test_bit(HCI_RUNNING, &hdev->flags))
719 return -EBUSY;
720
721 switch (bt_cb(skb)->pkt_type) {
722 case HCI_COMMAND_PKT:
723 urb = usb_alloc_urb(0, GFP_ATOMIC);
724 if (!urb)
725 return -ENOMEM;
726
727 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
728 if (!dr) {
729 usb_free_urb(urb);
730 return -ENOMEM;
731 }
732
733 dr->bRequestType = data->cmdreq_type;
734 dr->bRequest = 0;
735 dr->wIndex = 0;
736 dr->wValue = 0;
737 dr->wLength = __cpu_to_le16(skb->len);
738
739 pipe = usb_sndctrlpipe(data->udev, 0x00);
740
741 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
742 skb->data, skb->len, btusb_tx_complete, skb);
743
744 hdev->stat.cmd_tx++;
745 break;
746
747 case HCI_ACLDATA_PKT:
748 if (!data->bulk_tx_ep)
749 return -ENODEV;
750
751 urb = usb_alloc_urb(0, GFP_ATOMIC);
752 if (!urb)
753 return -ENOMEM;
754
755 pipe = usb_sndbulkpipe(data->udev,
756 data->bulk_tx_ep->bEndpointAddress);
757
758 usb_fill_bulk_urb(urb, data->udev, pipe,
759 skb->data, skb->len, btusb_tx_complete, skb);
760
761 hdev->stat.acl_tx++;
762 break;
763
764 case HCI_SCODATA_PKT:
765 if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
766 return -ENODEV;
767
768 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
769 if (!urb)
770 return -ENOMEM;
771
772 pipe = usb_sndisocpipe(data->udev,
773 data->isoc_tx_ep->bEndpointAddress);
774
775 usb_fill_int_urb(urb, data->udev, pipe,
776 skb->data, skb->len, btusb_isoc_tx_complete,
777 skb, data->isoc_tx_ep->bInterval);
778
779 urb->transfer_flags = URB_ISO_ASAP;
780
781 __fill_isoc_descriptor(urb, skb->len,
782 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
783
784 hdev->stat.sco_tx++;
785 goto skip_waking;
786
787 default:
788 return -EILSEQ;
789 }
790
791 err = inc_tx(data);
792 if (err) {
793 usb_anchor_urb(urb, &data->deferred);
794 schedule_work(&data->waker);
795 err = 0;
796 goto done;
797 }
798
799 skip_waking:
800 usb_anchor_urb(urb, &data->tx_anchor);
801
802 err = usb_submit_urb(urb, GFP_ATOMIC);
803 if (err < 0) {
804 if (err != -EPERM && err != -ENODEV)
805 BT_ERR("%s urb %p submission failed (%d)",
806 hdev->name, urb, -err);
807 kfree(urb->setup_packet);
808 usb_unanchor_urb(urb);
809 } else {
810 usb_mark_last_busy(data->udev);
811 }
812
813 done:
814 usb_free_urb(urb);
815 return err;
816 }
817
818 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
819 {
820 struct btusb_data *data = hci_get_drvdata(hdev);
821
822 BT_DBG("%s evt %d", hdev->name, evt);
823
824 if (hdev->conn_hash.sco_num != data->sco_num) {
825 data->sco_num = hdev->conn_hash.sco_num;
826 schedule_work(&data->work);
827 }
828 }
829
830 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
831 {
832 struct btusb_data *data = hci_get_drvdata(hdev);
833 struct usb_interface *intf = data->isoc;
834 struct usb_endpoint_descriptor *ep_desc;
835 int i, err;
836
837 if (!data->isoc)
838 return -ENODEV;
839
840 err = usb_set_interface(data->udev, 1, altsetting);
841 if (err < 0) {
842 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
843 return err;
844 }
845
846 data->isoc_altsetting = altsetting;
847
848 data->isoc_tx_ep = NULL;
849 data->isoc_rx_ep = NULL;
850
851 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
852 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
853
854 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
855 data->isoc_tx_ep = ep_desc;
856 continue;
857 }
858
859 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
860 data->isoc_rx_ep = ep_desc;
861 continue;
862 }
863 }
864
865 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
866 BT_ERR("%s invalid SCO descriptors", hdev->name);
867 return -ENODEV;
868 }
869
870 return 0;
871 }
872
873 static void btusb_work(struct work_struct *work)
874 {
875 struct btusb_data *data = container_of(work, struct btusb_data, work);
876 struct hci_dev *hdev = data->hdev;
877 int new_alts;
878 int err;
879
880 if (hdev->conn_hash.sco_num > 0) {
881 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
882 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
883 if (err < 0) {
884 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
885 usb_kill_anchored_urbs(&data->isoc_anchor);
886 return;
887 }
888
889 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
890 }
891
892 if (hdev->voice_setting & 0x0020) {
893 static const int alts[3] = { 2, 4, 5 };
894 new_alts = alts[hdev->conn_hash.sco_num - 1];
895 } else {
896 new_alts = hdev->conn_hash.sco_num;
897 }
898
899 if (data->isoc_altsetting != new_alts) {
900 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
901 usb_kill_anchored_urbs(&data->isoc_anchor);
902
903 if (__set_isoc_interface(hdev, new_alts) < 0)
904 return;
905 }
906
907 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
908 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
909 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
910 else
911 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
912 }
913 } else {
914 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
915 usb_kill_anchored_urbs(&data->isoc_anchor);
916
917 __set_isoc_interface(hdev, 0);
918 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
919 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
920 }
921 }
922
923 static void btusb_waker(struct work_struct *work)
924 {
925 struct btusb_data *data = container_of(work, struct btusb_data, waker);
926 int err;
927
928 err = usb_autopm_get_interface(data->intf);
929 if (err < 0)
930 return;
931
932 usb_autopm_put_interface(data->intf);
933 }
934
935 static int btusb_setup_bcm92035(struct hci_dev *hdev)
936 {
937 struct sk_buff *skb;
938 u8 val = 0x00;
939
940 BT_DBG("%s", hdev->name);
941
942 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
943 if (IS_ERR(skb))
944 BT_ERR("BCM92035 command failed (%ld)", -PTR_ERR(skb));
945 else
946 kfree_skb(skb);
947
948 return 0;
949 }
950
951 struct intel_version {
952 u8 status;
953 u8 hw_platform;
954 u8 hw_variant;
955 u8 hw_revision;
956 u8 fw_variant;
957 u8 fw_revision;
958 u8 fw_build_num;
959 u8 fw_build_ww;
960 u8 fw_build_yy;
961 u8 fw_patch_num;
962 } __packed;
963
964 static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
965 struct intel_version *ver)
966 {
967 const struct firmware *fw;
968 char fwname[64];
969 int ret;
970
971 snprintf(fwname, sizeof(fwname),
972 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
973 ver->hw_platform, ver->hw_variant, ver->hw_revision,
974 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
975 ver->fw_build_ww, ver->fw_build_yy);
976
977 ret = request_firmware(&fw, fwname, &hdev->dev);
978 if (ret < 0) {
979 if (ret == -EINVAL) {
980 BT_ERR("%s Intel firmware file request failed (%d)",
981 hdev->name, ret);
982 return NULL;
983 }
984
985 BT_ERR("%s failed to open Intel firmware file: %s(%d)",
986 hdev->name, fwname, ret);
987
988 /* If the correct firmware patch file is not found, use the
989 * default firmware patch file instead
990 */
991 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
992 ver->hw_platform, ver->hw_variant);
993 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
994 BT_ERR("%s failed to open default Intel fw file: %s",
995 hdev->name, fwname);
996 return NULL;
997 }
998 }
999
1000 BT_INFO("%s: Intel Bluetooth firmware file: %s", hdev->name, fwname);
1001
1002 return fw;
1003 }
1004
1005 static int btusb_setup_intel_patching(struct hci_dev *hdev,
1006 const struct firmware *fw,
1007 const u8 **fw_ptr, int *disable_patch)
1008 {
1009 struct sk_buff *skb;
1010 struct hci_command_hdr *cmd;
1011 const u8 *cmd_param;
1012 struct hci_event_hdr *evt = NULL;
1013 const u8 *evt_param = NULL;
1014 int remain = fw->size - (*fw_ptr - fw->data);
1015
1016 /* The first byte indicates the types of the patch command or event.
1017 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1018 * in the current firmware buffer doesn't start with 0x01 or
1019 * the size of remain buffer is smaller than HCI command header,
1020 * the firmware file is corrupted and it should stop the patching
1021 * process.
1022 */
1023 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1024 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name);
1025 return -EINVAL;
1026 }
1027 (*fw_ptr)++;
1028 remain--;
1029
1030 cmd = (struct hci_command_hdr *)(*fw_ptr);
1031 *fw_ptr += sizeof(*cmd);
1032 remain -= sizeof(*cmd);
1033
1034 /* Ensure that the remain firmware data is long enough than the length
1035 * of command parameter. If not, the firmware file is corrupted.
1036 */
1037 if (remain < cmd->plen) {
1038 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name);
1039 return -EFAULT;
1040 }
1041
1042 /* If there is a command that loads a patch in the firmware
1043 * file, then enable the patch upon success, otherwise just
1044 * disable the manufacturer mode, for example patch activation
1045 * is not required when the default firmware patch file is used
1046 * because there are no patch data to load.
1047 */
1048 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1049 *disable_patch = 0;
1050
1051 cmd_param = *fw_ptr;
1052 *fw_ptr += cmd->plen;
1053 remain -= cmd->plen;
1054
1055 /* This reads the expected events when the above command is sent to the
1056 * device. Some vendor commands expects more than one events, for
1057 * example command status event followed by vendor specific event.
1058 * For this case, it only keeps the last expected event. so the command
1059 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1060 * last expected event.
1061 */
1062 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1063 (*fw_ptr)++;
1064 remain--;
1065
1066 evt = (struct hci_event_hdr *)(*fw_ptr);
1067 *fw_ptr += sizeof(*evt);
1068 remain -= sizeof(*evt);
1069
1070 if (remain < evt->plen) {
1071 BT_ERR("%s Intel fw corrupted: invalid evt len",
1072 hdev->name);
1073 return -EFAULT;
1074 }
1075
1076 evt_param = *fw_ptr;
1077 *fw_ptr += evt->plen;
1078 remain -= evt->plen;
1079 }
1080
1081 /* Every HCI commands in the firmware file has its correspond event.
1082 * If event is not found or remain is smaller than zero, the firmware
1083 * file is corrupted.
1084 */
1085 if (!evt || !evt_param || remain < 0) {
1086 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name);
1087 return -EFAULT;
1088 }
1089
1090 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1091 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1092 if (IS_ERR(skb)) {
1093 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)",
1094 hdev->name, cmd->opcode, PTR_ERR(skb));
1095 return -PTR_ERR(skb);
1096 }
1097
1098 /* It ensures that the returned event matches the event data read from
1099 * the firmware file. At fist, it checks the length and then
1100 * the contents of the event.
1101 */
1102 if (skb->len != evt->plen) {
1103 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name,
1104 le16_to_cpu(cmd->opcode));
1105 kfree_skb(skb);
1106 return -EFAULT;
1107 }
1108
1109 if (memcmp(skb->data, evt_param, evt->plen)) {
1110 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)",
1111 hdev->name, le16_to_cpu(cmd->opcode));
1112 kfree_skb(skb);
1113 return -EFAULT;
1114 }
1115 kfree_skb(skb);
1116
1117 return 0;
1118 }
1119
1120 static int btusb_setup_intel(struct hci_dev *hdev)
1121 {
1122 struct sk_buff *skb;
1123 const struct firmware *fw;
1124 const u8 *fw_ptr;
1125 int disable_patch;
1126 struct intel_version *ver;
1127
1128 const u8 mfg_enable[] = { 0x01, 0x00 };
1129 const u8 mfg_disable[] = { 0x00, 0x00 };
1130 const u8 mfg_reset_deactivate[] = { 0x00, 0x01 };
1131 const u8 mfg_reset_activate[] = { 0x00, 0x02 };
1132
1133 BT_DBG("%s", hdev->name);
1134
1135 /* The controller has a bug with the first HCI command sent to it
1136 * returning number of completed commands as zero. This would stall the
1137 * command processing in the Bluetooth core.
1138 *
1139 * As a workaround, send HCI Reset command first which will reset the
1140 * number of completed commands and allow normal command processing
1141 * from now on.
1142 */
1143 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1144 if (IS_ERR(skb)) {
1145 BT_ERR("%s sending initial HCI reset command failed (%ld)",
1146 hdev->name, PTR_ERR(skb));
1147 return -PTR_ERR(skb);
1148 }
1149 kfree_skb(skb);
1150
1151 /* Read Intel specific controller version first to allow selection of
1152 * which firmware file to load.
1153 *
1154 * The returned information are hardware variant and revision plus
1155 * firmware variant, revision and build number.
1156 */
1157 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
1158 if (IS_ERR(skb)) {
1159 BT_ERR("%s reading Intel fw version command failed (%ld)",
1160 hdev->name, PTR_ERR(skb));
1161 return -PTR_ERR(skb);
1162 }
1163
1164 if (skb->len != sizeof(*ver)) {
1165 BT_ERR("%s Intel version event length mismatch", hdev->name);
1166 kfree_skb(skb);
1167 return -EIO;
1168 }
1169
1170 ver = (struct intel_version *)skb->data;
1171 if (ver->status) {
1172 BT_ERR("%s Intel fw version event failed (%02x)", hdev->name,
1173 ver->status);
1174 kfree_skb(skb);
1175 return -bt_to_errno(ver->status);
1176 }
1177
1178 BT_INFO("%s: read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1179 hdev->name, ver->hw_platform, ver->hw_variant,
1180 ver->hw_revision, ver->fw_variant, ver->fw_revision,
1181 ver->fw_build_num, ver->fw_build_ww, ver->fw_build_yy,
1182 ver->fw_patch_num);
1183
1184 /* fw_patch_num indicates the version of patch the device currently
1185 * have. If there is no patch data in the device, it is always 0x00.
1186 * So, if it is other than 0x00, no need to patch the deivce again.
1187 */
1188 if (ver->fw_patch_num) {
1189 BT_INFO("%s: Intel device is already patched. patch num: %02x",
1190 hdev->name, ver->fw_patch_num);
1191 kfree_skb(skb);
1192 return 0;
1193 }
1194
1195 /* Opens the firmware patch file based on the firmware version read
1196 * from the controller. If it fails to open the matching firmware
1197 * patch file, it tries to open the default firmware patch file.
1198 * If no patch file is found, allow the device to operate without
1199 * a patch.
1200 */
1201 fw = btusb_setup_intel_get_fw(hdev, ver);
1202 if (!fw) {
1203 kfree_skb(skb);
1204 return 0;
1205 }
1206 fw_ptr = fw->data;
1207
1208 /* This Intel specific command enables the manufacturer mode of the
1209 * controller.
1210 *
1211 * Only while this mode is enabled, the driver can download the
1212 * firmware patch data and configuration parameters.
1213 */
1214 skb = __hci_cmd_sync(hdev, 0xfc11, 2, mfg_enable, HCI_INIT_TIMEOUT);
1215 if (IS_ERR(skb)) {
1216 BT_ERR("%s entering Intel manufacturer mode failed (%ld)",
1217 hdev->name, PTR_ERR(skb));
1218 release_firmware(fw);
1219 return -PTR_ERR(skb);
1220 }
1221
1222 if (skb->data[0]) {
1223 u8 evt_status = skb->data[0];
1224 BT_ERR("%s enable Intel manufacturer mode event failed (%02x)",
1225 hdev->name, evt_status);
1226 kfree_skb(skb);
1227 release_firmware(fw);
1228 return -bt_to_errno(evt_status);
1229 }
1230 kfree_skb(skb);
1231
1232 disable_patch = 1;
1233
1234 /* The firmware data file consists of list of Intel specific HCI
1235 * commands and its expected events. The first byte indicates the
1236 * type of the message, either HCI command or HCI event.
1237 *
1238 * It reads the command and its expected event from the firmware file,
1239 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1240 * the returned event is compared with the event read from the firmware
1241 * file and it will continue until all the messages are downloaded to
1242 * the controller.
1243 *
1244 * Once the firmware patching is completed successfully,
1245 * the manufacturer mode is disabled with reset and activating the
1246 * downloaded patch.
1247 *
1248 * If the firmware patching fails, the manufacturer mode is
1249 * disabled with reset and deactivating the patch.
1250 *
1251 * If the default patch file is used, no reset is done when disabling
1252 * the manufacturer.
1253 */
1254 while (fw->size > fw_ptr - fw->data) {
1255 int ret;
1256
1257 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1258 &disable_patch);
1259 if (ret < 0)
1260 goto exit_mfg_deactivate;
1261 }
1262
1263 release_firmware(fw);
1264
1265 if (disable_patch)
1266 goto exit_mfg_disable;
1267
1268 /* Patching completed successfully and disable the manufacturer mode
1269 * with reset and activate the downloaded firmware patches.
1270 */
1271 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_activate),
1272 mfg_reset_activate, HCI_INIT_TIMEOUT);
1273 if (IS_ERR(skb)) {
1274 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1275 hdev->name, PTR_ERR(skb));
1276 return -PTR_ERR(skb);
1277 }
1278 kfree_skb(skb);
1279
1280 BT_INFO("%s: Intel Bluetooth firmware patch completed and activated",
1281 hdev->name);
1282
1283 return 0;
1284
1285 exit_mfg_disable:
1286 /* Disable the manufacturer mode without reset */
1287 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_disable), mfg_disable,
1288 HCI_INIT_TIMEOUT);
1289 if (IS_ERR(skb)) {
1290 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1291 hdev->name, PTR_ERR(skb));
1292 return -PTR_ERR(skb);
1293 }
1294 kfree_skb(skb);
1295
1296 BT_INFO("%s: Intel Bluetooth firmware patch completed", hdev->name);
1297 return 0;
1298
1299 exit_mfg_deactivate:
1300 release_firmware(fw);
1301
1302 /* Patching failed. Disable the manufacturer mode with reset and
1303 * deactivate the downloaded firmware patches.
1304 */
1305 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_deactivate),
1306 mfg_reset_deactivate, HCI_INIT_TIMEOUT);
1307 if (IS_ERR(skb)) {
1308 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1309 hdev->name, PTR_ERR(skb));
1310 return -PTR_ERR(skb);
1311 }
1312 kfree_skb(skb);
1313
1314 BT_INFO("%s: Intel Bluetooth firmware patch completed and deactivated",
1315 hdev->name);
1316
1317 return 0;
1318 }
1319
1320 static int btusb_probe(struct usb_interface *intf,
1321 const struct usb_device_id *id)
1322 {
1323 struct usb_endpoint_descriptor *ep_desc;
1324 struct btusb_data *data;
1325 struct hci_dev *hdev;
1326 int i, err;
1327
1328 BT_DBG("intf %p id %p", intf, id);
1329
1330 /* interface numbers are hardcoded in the spec */
1331 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
1332 return -ENODEV;
1333
1334 if (!id->driver_info) {
1335 const struct usb_device_id *match;
1336 match = usb_match_id(intf, blacklist_table);
1337 if (match)
1338 id = match;
1339 }
1340
1341 if (id->driver_info == BTUSB_IGNORE)
1342 return -ENODEV;
1343
1344 if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
1345 return -ENODEV;
1346
1347 if (ignore_csr && id->driver_info & BTUSB_CSR)
1348 return -ENODEV;
1349
1350 if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
1351 return -ENODEV;
1352
1353 if (id->driver_info & BTUSB_ATH3012) {
1354 struct usb_device *udev = interface_to_usbdev(intf);
1355
1356 /* Old firmware would otherwise let ath3k driver load
1357 * patch and sysconfig files */
1358 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
1359 return -ENODEV;
1360 }
1361
1362 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
1363 if (!data)
1364 return -ENOMEM;
1365
1366 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1367 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1368
1369 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
1370 data->intr_ep = ep_desc;
1371 continue;
1372 }
1373
1374 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
1375 data->bulk_tx_ep = ep_desc;
1376 continue;
1377 }
1378
1379 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
1380 data->bulk_rx_ep = ep_desc;
1381 continue;
1382 }
1383 }
1384
1385 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
1386 return -ENODEV;
1387
1388 data->cmdreq_type = USB_TYPE_CLASS;
1389
1390 data->udev = interface_to_usbdev(intf);
1391 data->intf = intf;
1392
1393 spin_lock_init(&data->lock);
1394
1395 INIT_WORK(&data->work, btusb_work);
1396 INIT_WORK(&data->waker, btusb_waker);
1397 spin_lock_init(&data->txlock);
1398
1399 init_usb_anchor(&data->tx_anchor);
1400 init_usb_anchor(&data->intr_anchor);
1401 init_usb_anchor(&data->bulk_anchor);
1402 init_usb_anchor(&data->isoc_anchor);
1403 init_usb_anchor(&data->deferred);
1404
1405 hdev = hci_alloc_dev();
1406 if (!hdev)
1407 return -ENOMEM;
1408
1409 hdev->bus = HCI_USB;
1410 hci_set_drvdata(hdev, data);
1411
1412 data->hdev = hdev;
1413
1414 SET_HCIDEV_DEV(hdev, &intf->dev);
1415
1416 hdev->open = btusb_open;
1417 hdev->close = btusb_close;
1418 hdev->flush = btusb_flush;
1419 hdev->send = btusb_send_frame;
1420 hdev->notify = btusb_notify;
1421
1422 if (id->driver_info & BTUSB_BCM92035)
1423 hdev->setup = btusb_setup_bcm92035;
1424
1425 if (id->driver_info & BTUSB_INTEL)
1426 hdev->setup = btusb_setup_intel;
1427
1428 /* Interface numbers are hardcoded in the specification */
1429 data->isoc = usb_ifnum_to_if(data->udev, 1);
1430
1431 if (!reset)
1432 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1433
1434 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1435 if (!disable_scofix)
1436 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1437 }
1438
1439 if (id->driver_info & BTUSB_BROKEN_ISOC)
1440 data->isoc = NULL;
1441
1442 if (id->driver_info & BTUSB_DIGIANSWER) {
1443 data->cmdreq_type = USB_TYPE_VENDOR;
1444 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1445 }
1446
1447 if (id->driver_info & BTUSB_CSR) {
1448 struct usb_device *udev = data->udev;
1449
1450 /* Old firmware would otherwise execute USB reset */
1451 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
1452 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1453 }
1454
1455 if (id->driver_info & BTUSB_SNIFFER) {
1456 struct usb_device *udev = data->udev;
1457
1458 /* New sniffer firmware has crippled HCI interface */
1459 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1460 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1461
1462 data->isoc = NULL;
1463 }
1464
1465 if (data->isoc) {
1466 err = usb_driver_claim_interface(&btusb_driver,
1467 data->isoc, data);
1468 if (err < 0) {
1469 hci_free_dev(hdev);
1470 return err;
1471 }
1472 }
1473
1474 err = hci_register_dev(hdev);
1475 if (err < 0) {
1476 hci_free_dev(hdev);
1477 return err;
1478 }
1479
1480 usb_set_intfdata(intf, data);
1481
1482 return 0;
1483 }
1484
1485 static void btusb_disconnect(struct usb_interface *intf)
1486 {
1487 struct btusb_data *data = usb_get_intfdata(intf);
1488 struct hci_dev *hdev;
1489
1490 BT_DBG("intf %p", intf);
1491
1492 if (!data)
1493 return;
1494
1495 hdev = data->hdev;
1496 usb_set_intfdata(data->intf, NULL);
1497
1498 if (data->isoc)
1499 usb_set_intfdata(data->isoc, NULL);
1500
1501 hci_unregister_dev(hdev);
1502
1503 if (intf == data->isoc)
1504 usb_driver_release_interface(&btusb_driver, data->intf);
1505 else if (data->isoc)
1506 usb_driver_release_interface(&btusb_driver, data->isoc);
1507
1508 hci_free_dev(hdev);
1509 }
1510
1511 #ifdef CONFIG_PM
1512 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1513 {
1514 struct btusb_data *data = usb_get_intfdata(intf);
1515
1516 BT_DBG("intf %p", intf);
1517
1518 if (data->suspend_count++)
1519 return 0;
1520
1521 spin_lock_irq(&data->txlock);
1522 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
1523 set_bit(BTUSB_SUSPENDING, &data->flags);
1524 spin_unlock_irq(&data->txlock);
1525 } else {
1526 spin_unlock_irq(&data->txlock);
1527 data->suspend_count--;
1528 return -EBUSY;
1529 }
1530
1531 cancel_work_sync(&data->work);
1532
1533 btusb_stop_traffic(data);
1534 usb_kill_anchored_urbs(&data->tx_anchor);
1535
1536 return 0;
1537 }
1538
1539 static void play_deferred(struct btusb_data *data)
1540 {
1541 struct urb *urb;
1542 int err;
1543
1544 while ((urb = usb_get_from_anchor(&data->deferred))) {
1545 err = usb_submit_urb(urb, GFP_ATOMIC);
1546 if (err < 0)
1547 break;
1548
1549 data->tx_in_flight++;
1550 }
1551 usb_scuttle_anchored_urbs(&data->deferred);
1552 }
1553
1554 static int btusb_resume(struct usb_interface *intf)
1555 {
1556 struct btusb_data *data = usb_get_intfdata(intf);
1557 struct hci_dev *hdev = data->hdev;
1558 int err = 0;
1559
1560 BT_DBG("intf %p", intf);
1561
1562 if (--data->suspend_count)
1563 return 0;
1564
1565 if (!test_bit(HCI_RUNNING, &hdev->flags))
1566 goto done;
1567
1568 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1569 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1570 if (err < 0) {
1571 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1572 goto failed;
1573 }
1574 }
1575
1576 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1577 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1578 if (err < 0) {
1579 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1580 goto failed;
1581 }
1582
1583 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1584 }
1585
1586 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1587 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1588 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1589 else
1590 btusb_submit_isoc_urb(hdev, GFP_NOIO);
1591 }
1592
1593 spin_lock_irq(&data->txlock);
1594 play_deferred(data);
1595 clear_bit(BTUSB_SUSPENDING, &data->flags);
1596 spin_unlock_irq(&data->txlock);
1597 schedule_work(&data->work);
1598
1599 return 0;
1600
1601 failed:
1602 usb_scuttle_anchored_urbs(&data->deferred);
1603 done:
1604 spin_lock_irq(&data->txlock);
1605 clear_bit(BTUSB_SUSPENDING, &data->flags);
1606 spin_unlock_irq(&data->txlock);
1607
1608 return err;
1609 }
1610 #endif
1611
1612 static struct usb_driver btusb_driver = {
1613 .name = "btusb",
1614 .probe = btusb_probe,
1615 .disconnect = btusb_disconnect,
1616 #ifdef CONFIG_PM
1617 .suspend = btusb_suspend,
1618 .resume = btusb_resume,
1619 #endif
1620 .id_table = btusb_table,
1621 .supports_autosuspend = 1,
1622 .disable_hub_initiated_lpm = 1,
1623 };
1624
1625 module_usb_driver(btusb_driver);
1626
1627 module_param(ignore_dga, bool, 0644);
1628 MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1629
1630 module_param(ignore_csr, bool, 0644);
1631 MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1632
1633 module_param(ignore_sniffer, bool, 0644);
1634 MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1635
1636 module_param(disable_scofix, bool, 0644);
1637 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1638
1639 module_param(force_scofix, bool, 0644);
1640 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1641
1642 module_param(reset, bool, 0644);
1643 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1644
1645 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1646 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1647 MODULE_VERSION(VERSION);
1648 MODULE_LICENSE("GPL");
kernel source for telekom puls (alcatel/mediatek)