projects / deliverable / linux.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
Merge tag 'squashfs-updates' of git://git.kernel.org/pub/scm/linux/kernel/git/pkl...
[deliverable/linux.git] / drivers / bluetooth / btusb.c
1 /*
2 *
3 * Generic Bluetooth USB driver
4 *
5 * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org>
6 *
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 *
22 */
23
24 #include <linux/module.h>
25 #include <linux/usb.h>
26 #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 const 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 /* MediaTek MT76x0E */
61 { USB_DEVICE(0x0e8d, 0x763f) },
62
63 /* Broadcom SoftSailing reporting vendor specific */
64 { USB_DEVICE(0x0a5c, 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(0x0b05, 0x17b5) },
105 { USB_DEVICE(0x0b05, 0x17cb) },
106 { USB_DEVICE(0x04ca, 0x2003) },
107 { USB_DEVICE(0x0489, 0xe042) },
108 { USB_DEVICE(0x413c, 0x8197) },
109
110 /* Foxconn - Hon Hai */
111 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01) },
112
113 /*Broadcom devices with vendor specific id */
114 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01) },
115
116 /* Belkin F8065bf - Broadcom based */
117 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01) },
118
119 { } /* Terminating entry */
120 };
121
122 MODULE_DEVICE_TABLE(usb, btusb_table);
123
124 static const struct usb_device_id blacklist_table[] = {
125 /* CSR BlueCore devices */
126 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
127
128 /* Broadcom BCM2033 without firmware */
129 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
130
131 /* Atheros 3011 with sflash firmware */
132 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
133 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
134 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
135 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
136 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
137 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
138
139 /* Atheros AR9285 Malbec with sflash firmware */
140 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
141
142 /* Atheros 3012 with sflash firmware */
143 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
144 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
145 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
146 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
147 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
148 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
149 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
150 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
151 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
152 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
153 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
154 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
155 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
156 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
157 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
158 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
159 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
160 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
161 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
162 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
163 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
164 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
165 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
166
167 /* Atheros AR5BBU12 with sflash firmware */
168 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
169
170 /* Atheros AR5BBU12 with sflash firmware */
171 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
172 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
173
174 /* Broadcom BCM2035 */
175 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
176 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
177 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
178
179 /* Broadcom BCM2045 */
180 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
181 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
182
183 /* IBM/Lenovo ThinkPad with Broadcom chip */
184 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
185 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
186
187 /* HP laptop with Broadcom chip */
188 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
189
190 /* Dell laptop with Broadcom chip */
191 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
192
193 /* Dell Wireless 370 and 410 devices */
194 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
195 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
196
197 /* Belkin F8T012 and F8T013 devices */
198 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
199 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
200
201 /* Asus WL-BTD202 device */
202 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
203
204 /* Kensington Bluetooth USB adapter */
205 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
206
207 /* RTX Telecom based adapters with buggy SCO support */
208 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
209 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
210
211 /* CONWISE Technology based adapters with buggy SCO support */
212 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
213
214 /* Digianswer devices */
215 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
216 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
217
218 /* CSR BlueCore Bluetooth Sniffer */
219 { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
220
221 /* Frontline ComProbe Bluetooth Sniffer */
222 { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
223
224 /* Intel Bluetooth device */
225 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
226
227 { } /* Terminating entry */
228 };
229
230 #define BTUSB_MAX_ISOC_FRAMES 10
231
232 #define BTUSB_INTR_RUNNING 0
233 #define BTUSB_BULK_RUNNING 1
234 #define BTUSB_ISOC_RUNNING 2
235 #define BTUSB_SUSPENDING 3
236 #define BTUSB_DID_ISO_RESUME 4
237
238 struct btusb_data {
239 struct hci_dev *hdev;
240 struct usb_device *udev;
241 struct usb_interface *intf;
242 struct usb_interface *isoc;
243
244 spinlock_t lock;
245
246 unsigned long flags;
247
248 struct work_struct work;
249 struct work_struct waker;
250
251 struct usb_anchor tx_anchor;
252 struct usb_anchor intr_anchor;
253 struct usb_anchor bulk_anchor;
254 struct usb_anchor isoc_anchor;
255 struct usb_anchor deferred;
256 int tx_in_flight;
257 spinlock_t txlock;
258
259 struct usb_endpoint_descriptor *intr_ep;
260 struct usb_endpoint_descriptor *bulk_tx_ep;
261 struct usb_endpoint_descriptor *bulk_rx_ep;
262 struct usb_endpoint_descriptor *isoc_tx_ep;
263 struct usb_endpoint_descriptor *isoc_rx_ep;
264
265 __u8 cmdreq_type;
266
267 unsigned int sco_num;
268 int isoc_altsetting;
269 int suspend_count;
270 };
271
272 static int inc_tx(struct btusb_data *data)
273 {
274 unsigned long flags;
275 int rv;
276
277 spin_lock_irqsave(&data->txlock, flags);
278 rv = test_bit(BTUSB_SUSPENDING, &data->flags);
279 if (!rv)
280 data->tx_in_flight++;
281 spin_unlock_irqrestore(&data->txlock, flags);
282
283 return rv;
284 }
285
286 static void btusb_intr_complete(struct urb *urb)
287 {
288 struct hci_dev *hdev = urb->context;
289 struct btusb_data *data = hci_get_drvdata(hdev);
290 int err;
291
292 BT_DBG("%s urb %p status %d count %d", hdev->name,
293 urb, urb->status, urb->actual_length);
294
295 if (!test_bit(HCI_RUNNING, &hdev->flags))
296 return;
297
298 if (urb->status == 0) {
299 hdev->stat.byte_rx += urb->actual_length;
300
301 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
302 urb->transfer_buffer,
303 urb->actual_length) < 0) {
304 BT_ERR("%s corrupted event packet", hdev->name);
305 hdev->stat.err_rx++;
306 }
307 }
308
309 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
310 return;
311
312 usb_mark_last_busy(data->udev);
313 usb_anchor_urb(urb, &data->intr_anchor);
314
315 err = usb_submit_urb(urb, GFP_ATOMIC);
316 if (err < 0) {
317 /* -EPERM: urb is being killed;
318 * -ENODEV: device got disconnected */
319 if (err != -EPERM && err != -ENODEV)
320 BT_ERR("%s urb %p failed to resubmit (%d)",
321 hdev->name, urb, -err);
322 usb_unanchor_urb(urb);
323 }
324 }
325
326 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
327 {
328 struct btusb_data *data = hci_get_drvdata(hdev);
329 struct urb *urb;
330 unsigned char *buf;
331 unsigned int pipe;
332 int err, size;
333
334 BT_DBG("%s", hdev->name);
335
336 if (!data->intr_ep)
337 return -ENODEV;
338
339 urb = usb_alloc_urb(0, mem_flags);
340 if (!urb)
341 return -ENOMEM;
342
343 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
344
345 buf = kmalloc(size, mem_flags);
346 if (!buf) {
347 usb_free_urb(urb);
348 return -ENOMEM;
349 }
350
351 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
352
353 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
354 btusb_intr_complete, hdev,
355 data->intr_ep->bInterval);
356
357 urb->transfer_flags |= URB_FREE_BUFFER;
358
359 usb_anchor_urb(urb, &data->intr_anchor);
360
361 err = usb_submit_urb(urb, mem_flags);
362 if (err < 0) {
363 if (err != -EPERM && err != -ENODEV)
364 BT_ERR("%s urb %p submission failed (%d)",
365 hdev->name, urb, -err);
366 usb_unanchor_urb(urb);
367 }
368
369 usb_free_urb(urb);
370
371 return err;
372 }
373
374 static void btusb_bulk_complete(struct urb *urb)
375 {
376 struct hci_dev *hdev = urb->context;
377 struct btusb_data *data = hci_get_drvdata(hdev);
378 int err;
379
380 BT_DBG("%s urb %p status %d count %d", hdev->name,
381 urb, urb->status, urb->actual_length);
382
383 if (!test_bit(HCI_RUNNING, &hdev->flags))
384 return;
385
386 if (urb->status == 0) {
387 hdev->stat.byte_rx += urb->actual_length;
388
389 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
390 urb->transfer_buffer,
391 urb->actual_length) < 0) {
392 BT_ERR("%s corrupted ACL packet", hdev->name);
393 hdev->stat.err_rx++;
394 }
395 }
396
397 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
398 return;
399
400 usb_anchor_urb(urb, &data->bulk_anchor);
401 usb_mark_last_busy(data->udev);
402
403 err = usb_submit_urb(urb, GFP_ATOMIC);
404 if (err < 0) {
405 /* -EPERM: urb is being killed;
406 * -ENODEV: device got disconnected */
407 if (err != -EPERM && err != -ENODEV)
408 BT_ERR("%s urb %p failed to resubmit (%d)",
409 hdev->name, urb, -err);
410 usb_unanchor_urb(urb);
411 }
412 }
413
414 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
415 {
416 struct btusb_data *data = hci_get_drvdata(hdev);
417 struct urb *urb;
418 unsigned char *buf;
419 unsigned int pipe;
420 int err, size = HCI_MAX_FRAME_SIZE;
421
422 BT_DBG("%s", hdev->name);
423
424 if (!data->bulk_rx_ep)
425 return -ENODEV;
426
427 urb = usb_alloc_urb(0, mem_flags);
428 if (!urb)
429 return -ENOMEM;
430
431 buf = kmalloc(size, mem_flags);
432 if (!buf) {
433 usb_free_urb(urb);
434 return -ENOMEM;
435 }
436
437 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
438
439 usb_fill_bulk_urb(urb, data->udev, pipe,
440 buf, size, btusb_bulk_complete, hdev);
441
442 urb->transfer_flags |= URB_FREE_BUFFER;
443
444 usb_mark_last_busy(data->udev);
445 usb_anchor_urb(urb, &data->bulk_anchor);
446
447 err = usb_submit_urb(urb, mem_flags);
448 if (err < 0) {
449 if (err != -EPERM && err != -ENODEV)
450 BT_ERR("%s urb %p submission failed (%d)",
451 hdev->name, urb, -err);
452 usb_unanchor_urb(urb);
453 }
454
455 usb_free_urb(urb);
456
457 return err;
458 }
459
460 static void btusb_isoc_complete(struct urb *urb)
461 {
462 struct hci_dev *hdev = urb->context;
463 struct btusb_data *data = hci_get_drvdata(hdev);
464 int i, err;
465
466 BT_DBG("%s urb %p status %d count %d", hdev->name,
467 urb, urb->status, urb->actual_length);
468
469 if (!test_bit(HCI_RUNNING, &hdev->flags))
470 return;
471
472 if (urb->status == 0) {
473 for (i = 0; i < urb->number_of_packets; i++) {
474 unsigned int offset = urb->iso_frame_desc[i].offset;
475 unsigned int length = urb->iso_frame_desc[i].actual_length;
476
477 if (urb->iso_frame_desc[i].status)
478 continue;
479
480 hdev->stat.byte_rx += length;
481
482 if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
483 urb->transfer_buffer + offset,
484 length) < 0) {
485 BT_ERR("%s corrupted SCO packet", hdev->name);
486 hdev->stat.err_rx++;
487 }
488 }
489 }
490
491 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
492 return;
493
494 usb_anchor_urb(urb, &data->isoc_anchor);
495
496 err = usb_submit_urb(urb, GFP_ATOMIC);
497 if (err < 0) {
498 /* -EPERM: urb is being killed;
499 * -ENODEV: device got disconnected */
500 if (err != -EPERM && err != -ENODEV)
501 BT_ERR("%s urb %p failed to resubmit (%d)",
502 hdev->name, urb, -err);
503 usb_unanchor_urb(urb);
504 }
505 }
506
507 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
508 {
509 int i, offset = 0;
510
511 BT_DBG("len %d mtu %d", len, mtu);
512
513 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
514 i++, offset += mtu, len -= mtu) {
515 urb->iso_frame_desc[i].offset = offset;
516 urb->iso_frame_desc[i].length = mtu;
517 }
518
519 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
520 urb->iso_frame_desc[i].offset = offset;
521 urb->iso_frame_desc[i].length = len;
522 i++;
523 }
524
525 urb->number_of_packets = i;
526 }
527
528 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
529 {
530 struct btusb_data *data = hci_get_drvdata(hdev);
531 struct urb *urb;
532 unsigned char *buf;
533 unsigned int pipe;
534 int err, size;
535
536 BT_DBG("%s", hdev->name);
537
538 if (!data->isoc_rx_ep)
539 return -ENODEV;
540
541 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
542 if (!urb)
543 return -ENOMEM;
544
545 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
546 BTUSB_MAX_ISOC_FRAMES;
547
548 buf = kmalloc(size, mem_flags);
549 if (!buf) {
550 usb_free_urb(urb);
551 return -ENOMEM;
552 }
553
554 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
555
556 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
557 hdev, data->isoc_rx_ep->bInterval);
558
559 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
560
561 __fill_isoc_descriptor(urb, size,
562 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
563
564 usb_anchor_urb(urb, &data->isoc_anchor);
565
566 err = usb_submit_urb(urb, mem_flags);
567 if (err < 0) {
568 if (err != -EPERM && err != -ENODEV)
569 BT_ERR("%s urb %p submission failed (%d)",
570 hdev->name, urb, -err);
571 usb_unanchor_urb(urb);
572 }
573
574 usb_free_urb(urb);
575
576 return err;
577 }
578
579 static void btusb_tx_complete(struct urb *urb)
580 {
581 struct sk_buff *skb = urb->context;
582 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
583 struct btusb_data *data = hci_get_drvdata(hdev);
584
585 BT_DBG("%s urb %p status %d count %d", hdev->name,
586 urb, urb->status, urb->actual_length);
587
588 if (!test_bit(HCI_RUNNING, &hdev->flags))
589 goto done;
590
591 if (!urb->status)
592 hdev->stat.byte_tx += urb->transfer_buffer_length;
593 else
594 hdev->stat.err_tx++;
595
596 done:
597 spin_lock(&data->txlock);
598 data->tx_in_flight--;
599 spin_unlock(&data->txlock);
600
601 kfree(urb->setup_packet);
602
603 kfree_skb(skb);
604 }
605
606 static void btusb_isoc_tx_complete(struct urb *urb)
607 {
608 struct sk_buff *skb = urb->context;
609 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
610
611 BT_DBG("%s urb %p status %d count %d", hdev->name,
612 urb, urb->status, urb->actual_length);
613
614 if (!test_bit(HCI_RUNNING, &hdev->flags))
615 goto done;
616
617 if (!urb->status)
618 hdev->stat.byte_tx += urb->transfer_buffer_length;
619 else
620 hdev->stat.err_tx++;
621
622 done:
623 kfree(urb->setup_packet);
624
625 kfree_skb(skb);
626 }
627
628 static int btusb_open(struct hci_dev *hdev)
629 {
630 struct btusb_data *data = hci_get_drvdata(hdev);
631 int err;
632
633 BT_DBG("%s", hdev->name);
634
635 err = usb_autopm_get_interface(data->intf);
636 if (err < 0)
637 return err;
638
639 data->intf->needs_remote_wakeup = 1;
640
641 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
642 goto done;
643
644 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
645 goto done;
646
647 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
648 if (err < 0)
649 goto failed;
650
651 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
652 if (err < 0) {
653 usb_kill_anchored_urbs(&data->intr_anchor);
654 goto failed;
655 }
656
657 set_bit(BTUSB_BULK_RUNNING, &data->flags);
658 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
659
660 done:
661 usb_autopm_put_interface(data->intf);
662 return 0;
663
664 failed:
665 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
666 clear_bit(HCI_RUNNING, &hdev->flags);
667 usb_autopm_put_interface(data->intf);
668 return err;
669 }
670
671 static void btusb_stop_traffic(struct btusb_data *data)
672 {
673 usb_kill_anchored_urbs(&data->intr_anchor);
674 usb_kill_anchored_urbs(&data->bulk_anchor);
675 usb_kill_anchored_urbs(&data->isoc_anchor);
676 }
677
678 static int btusb_close(struct hci_dev *hdev)
679 {
680 struct btusb_data *data = hci_get_drvdata(hdev);
681 int err;
682
683 BT_DBG("%s", hdev->name);
684
685 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
686 return 0;
687
688 cancel_work_sync(&data->work);
689 cancel_work_sync(&data->waker);
690
691 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
692 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
693 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
694
695 btusb_stop_traffic(data);
696 err = usb_autopm_get_interface(data->intf);
697 if (err < 0)
698 goto failed;
699
700 data->intf->needs_remote_wakeup = 0;
701 usb_autopm_put_interface(data->intf);
702
703 failed:
704 usb_scuttle_anchored_urbs(&data->deferred);
705 return 0;
706 }
707
708 static int btusb_flush(struct hci_dev *hdev)
709 {
710 struct btusb_data *data = hci_get_drvdata(hdev);
711
712 BT_DBG("%s", hdev->name);
713
714 usb_kill_anchored_urbs(&data->tx_anchor);
715
716 return 0;
717 }
718
719 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
720 {
721 struct btusb_data *data = hci_get_drvdata(hdev);
722 struct usb_ctrlrequest *dr;
723 struct urb *urb;
724 unsigned int pipe;
725 int err;
726
727 BT_DBG("%s", hdev->name);
728
729 if (!test_bit(HCI_RUNNING, &hdev->flags))
730 return -EBUSY;
731
732 skb->dev = (void *) hdev;
733
734 switch (bt_cb(skb)->pkt_type) {
735 case HCI_COMMAND_PKT:
736 urb = usb_alloc_urb(0, GFP_ATOMIC);
737 if (!urb)
738 return -ENOMEM;
739
740 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
741 if (!dr) {
742 usb_free_urb(urb);
743 return -ENOMEM;
744 }
745
746 dr->bRequestType = data->cmdreq_type;
747 dr->bRequest = 0;
748 dr->wIndex = 0;
749 dr->wValue = 0;
750 dr->wLength = __cpu_to_le16(skb->len);
751
752 pipe = usb_sndctrlpipe(data->udev, 0x00);
753
754 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
755 skb->data, skb->len, btusb_tx_complete, skb);
756
757 hdev->stat.cmd_tx++;
758 break;
759
760 case HCI_ACLDATA_PKT:
761 if (!data->bulk_tx_ep)
762 return -ENODEV;
763
764 urb = usb_alloc_urb(0, GFP_ATOMIC);
765 if (!urb)
766 return -ENOMEM;
767
768 pipe = usb_sndbulkpipe(data->udev,
769 data->bulk_tx_ep->bEndpointAddress);
770
771 usb_fill_bulk_urb(urb, data->udev, pipe,
772 skb->data, skb->len, btusb_tx_complete, skb);
773
774 hdev->stat.acl_tx++;
775 break;
776
777 case HCI_SCODATA_PKT:
778 if (!data->isoc_tx_ep || hci_conn_num(hdev, SCO_LINK) < 1)
779 return -ENODEV;
780
781 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
782 if (!urb)
783 return -ENOMEM;
784
785 pipe = usb_sndisocpipe(data->udev,
786 data->isoc_tx_ep->bEndpointAddress);
787
788 usb_fill_int_urb(urb, data->udev, pipe,
789 skb->data, skb->len, btusb_isoc_tx_complete,
790 skb, data->isoc_tx_ep->bInterval);
791
792 urb->transfer_flags = URB_ISO_ASAP;
793
794 __fill_isoc_descriptor(urb, skb->len,
795 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
796
797 hdev->stat.sco_tx++;
798 goto skip_waking;
799
800 default:
801 return -EILSEQ;
802 }
803
804 err = inc_tx(data);
805 if (err) {
806 usb_anchor_urb(urb, &data->deferred);
807 schedule_work(&data->waker);
808 err = 0;
809 goto done;
810 }
811
812 skip_waking:
813 usb_anchor_urb(urb, &data->tx_anchor);
814
815 err = usb_submit_urb(urb, GFP_ATOMIC);
816 if (err < 0) {
817 if (err != -EPERM && err != -ENODEV)
818 BT_ERR("%s urb %p submission failed (%d)",
819 hdev->name, urb, -err);
820 kfree(urb->setup_packet);
821 usb_unanchor_urb(urb);
822 } else {
823 usb_mark_last_busy(data->udev);
824 }
825
826 done:
827 usb_free_urb(urb);
828 return err;
829 }
830
831 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
832 {
833 struct btusb_data *data = hci_get_drvdata(hdev);
834
835 BT_DBG("%s evt %d", hdev->name, evt);
836
837 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
838 data->sco_num = hci_conn_num(hdev, SCO_LINK);
839 schedule_work(&data->work);
840 }
841 }
842
843 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
844 {
845 struct btusb_data *data = hci_get_drvdata(hdev);
846 struct usb_interface *intf = data->isoc;
847 struct usb_endpoint_descriptor *ep_desc;
848 int i, err;
849
850 if (!data->isoc)
851 return -ENODEV;
852
853 err = usb_set_interface(data->udev, 1, altsetting);
854 if (err < 0) {
855 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
856 return err;
857 }
858
859 data->isoc_altsetting = altsetting;
860
861 data->isoc_tx_ep = NULL;
862 data->isoc_rx_ep = NULL;
863
864 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
865 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
866
867 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
868 data->isoc_tx_ep = ep_desc;
869 continue;
870 }
871
872 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
873 data->isoc_rx_ep = ep_desc;
874 continue;
875 }
876 }
877
878 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
879 BT_ERR("%s invalid SCO descriptors", hdev->name);
880 return -ENODEV;
881 }
882
883 return 0;
884 }
885
886 static void btusb_work(struct work_struct *work)
887 {
888 struct btusb_data *data = container_of(work, struct btusb_data, work);
889 struct hci_dev *hdev = data->hdev;
890 int new_alts;
891 int err;
892
893 if (data->sco_num > 0) {
894 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
895 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
896 if (err < 0) {
897 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
898 usb_kill_anchored_urbs(&data->isoc_anchor);
899 return;
900 }
901
902 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
903 }
904
905 if (hdev->voice_setting & 0x0020) {
906 static const int alts[3] = { 2, 4, 5 };
907 new_alts = alts[data->sco_num - 1];
908 } else {
909 new_alts = data->sco_num;
910 }
911
912 if (data->isoc_altsetting != new_alts) {
913 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
914 usb_kill_anchored_urbs(&data->isoc_anchor);
915
916 if (__set_isoc_interface(hdev, new_alts) < 0)
917 return;
918 }
919
920 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
921 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
922 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
923 else
924 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
925 }
926 } else {
927 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
928 usb_kill_anchored_urbs(&data->isoc_anchor);
929
930 __set_isoc_interface(hdev, 0);
931 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
932 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
933 }
934 }
935
936 static void btusb_waker(struct work_struct *work)
937 {
938 struct btusb_data *data = container_of(work, struct btusb_data, waker);
939 int err;
940
941 err = usb_autopm_get_interface(data->intf);
942 if (err < 0)
943 return;
944
945 usb_autopm_put_interface(data->intf);
946 }
947
948 static int btusb_setup_bcm92035(struct hci_dev *hdev)
949 {
950 struct sk_buff *skb;
951 u8 val = 0x00;
952
953 BT_DBG("%s", hdev->name);
954
955 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
956 if (IS_ERR(skb))
957 BT_ERR("BCM92035 command failed (%ld)", -PTR_ERR(skb));
958 else
959 kfree_skb(skb);
960
961 return 0;
962 }
963
964 struct intel_version {
965 u8 status;
966 u8 hw_platform;
967 u8 hw_variant;
968 u8 hw_revision;
969 u8 fw_variant;
970 u8 fw_revision;
971 u8 fw_build_num;
972 u8 fw_build_ww;
973 u8 fw_build_yy;
974 u8 fw_patch_num;
975 } __packed;
976
977 static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
978 struct intel_version *ver)
979 {
980 const struct firmware *fw;
981 char fwname[64];
982 int ret;
983
984 snprintf(fwname, sizeof(fwname),
985 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
986 ver->hw_platform, ver->hw_variant, ver->hw_revision,
987 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
988 ver->fw_build_ww, ver->fw_build_yy);
989
990 ret = request_firmware(&fw, fwname, &hdev->dev);
991 if (ret < 0) {
992 if (ret == -EINVAL) {
993 BT_ERR("%s Intel firmware file request failed (%d)",
994 hdev->name, ret);
995 return NULL;
996 }
997
998 BT_ERR("%s failed to open Intel firmware file: %s(%d)",
999 hdev->name, fwname, ret);
1000
1001 /* If the correct firmware patch file is not found, use the
1002 * default firmware patch file instead
1003 */
1004 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1005 ver->hw_platform, ver->hw_variant);
1006 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1007 BT_ERR("%s failed to open default Intel fw file: %s",
1008 hdev->name, fwname);
1009 return NULL;
1010 }
1011 }
1012
1013 BT_INFO("%s: Intel Bluetooth firmware file: %s", hdev->name, fwname);
1014
1015 return fw;
1016 }
1017
1018 static int btusb_setup_intel_patching(struct hci_dev *hdev,
1019 const struct firmware *fw,
1020 const u8 **fw_ptr, int *disable_patch)
1021 {
1022 struct sk_buff *skb;
1023 struct hci_command_hdr *cmd;
1024 const u8 *cmd_param;
1025 struct hci_event_hdr *evt = NULL;
1026 const u8 *evt_param = NULL;
1027 int remain = fw->size - (*fw_ptr - fw->data);
1028
1029 /* The first byte indicates the types of the patch command or event.
1030 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1031 * in the current firmware buffer doesn't start with 0x01 or
1032 * the size of remain buffer is smaller than HCI command header,
1033 * the firmware file is corrupted and it should stop the patching
1034 * process.
1035 */
1036 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1037 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name);
1038 return -EINVAL;
1039 }
1040 (*fw_ptr)++;
1041 remain--;
1042
1043 cmd = (struct hci_command_hdr *)(*fw_ptr);
1044 *fw_ptr += sizeof(*cmd);
1045 remain -= sizeof(*cmd);
1046
1047 /* Ensure that the remain firmware data is long enough than the length
1048 * of command parameter. If not, the firmware file is corrupted.
1049 */
1050 if (remain < cmd->plen) {
1051 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name);
1052 return -EFAULT;
1053 }
1054
1055 /* If there is a command that loads a patch in the firmware
1056 * file, then enable the patch upon success, otherwise just
1057 * disable the manufacturer mode, for example patch activation
1058 * is not required when the default firmware patch file is used
1059 * because there are no patch data to load.
1060 */
1061 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1062 *disable_patch = 0;
1063
1064 cmd_param = *fw_ptr;
1065 *fw_ptr += cmd->plen;
1066 remain -= cmd->plen;
1067
1068 /* This reads the expected events when the above command is sent to the
1069 * device. Some vendor commands expects more than one events, for
1070 * example command status event followed by vendor specific event.
1071 * For this case, it only keeps the last expected event. so the command
1072 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1073 * last expected event.
1074 */
1075 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1076 (*fw_ptr)++;
1077 remain--;
1078
1079 evt = (struct hci_event_hdr *)(*fw_ptr);
1080 *fw_ptr += sizeof(*evt);
1081 remain -= sizeof(*evt);
1082
1083 if (remain < evt->plen) {
1084 BT_ERR("%s Intel fw corrupted: invalid evt len",
1085 hdev->name);
1086 return -EFAULT;
1087 }
1088
1089 evt_param = *fw_ptr;
1090 *fw_ptr += evt->plen;
1091 remain -= evt->plen;
1092 }
1093
1094 /* Every HCI commands in the firmware file has its correspond event.
1095 * If event is not found or remain is smaller than zero, the firmware
1096 * file is corrupted.
1097 */
1098 if (!evt || !evt_param || remain < 0) {
1099 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name);
1100 return -EFAULT;
1101 }
1102
1103 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1104 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1105 if (IS_ERR(skb)) {
1106 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)",
1107 hdev->name, cmd->opcode, PTR_ERR(skb));
1108 return PTR_ERR(skb);
1109 }
1110
1111 /* It ensures that the returned event matches the event data read from
1112 * the firmware file. At fist, it checks the length and then
1113 * the contents of the event.
1114 */
1115 if (skb->len != evt->plen) {
1116 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name,
1117 le16_to_cpu(cmd->opcode));
1118 kfree_skb(skb);
1119 return -EFAULT;
1120 }
1121
1122 if (memcmp(skb->data, evt_param, evt->plen)) {
1123 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)",
1124 hdev->name, le16_to_cpu(cmd->opcode));
1125 kfree_skb(skb);
1126 return -EFAULT;
1127 }
1128 kfree_skb(skb);
1129
1130 return 0;
1131 }
1132
1133 static int btusb_setup_intel(struct hci_dev *hdev)
1134 {
1135 struct sk_buff *skb;
1136 const struct firmware *fw;
1137 const u8 *fw_ptr;
1138 int disable_patch;
1139 struct intel_version *ver;
1140
1141 const u8 mfg_enable[] = { 0x01, 0x00 };
1142 const u8 mfg_disable[] = { 0x00, 0x00 };
1143 const u8 mfg_reset_deactivate[] = { 0x00, 0x01 };
1144 const u8 mfg_reset_activate[] = { 0x00, 0x02 };
1145
1146 BT_DBG("%s", hdev->name);
1147
1148 /* The controller has a bug with the first HCI command sent to it
1149 * returning number of completed commands as zero. This would stall the
1150 * command processing in the Bluetooth core.
1151 *
1152 * As a workaround, send HCI Reset command first which will reset the
1153 * number of completed commands and allow normal command processing
1154 * from now on.
1155 */
1156 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1157 if (IS_ERR(skb)) {
1158 BT_ERR("%s sending initial HCI reset command failed (%ld)",
1159 hdev->name, PTR_ERR(skb));
1160 return PTR_ERR(skb);
1161 }
1162 kfree_skb(skb);
1163
1164 /* Read Intel specific controller version first to allow selection of
1165 * which firmware file to load.
1166 *
1167 * The returned information are hardware variant and revision plus
1168 * firmware variant, revision and build number.
1169 */
1170 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
1171 if (IS_ERR(skb)) {
1172 BT_ERR("%s reading Intel fw version command failed (%ld)",
1173 hdev->name, PTR_ERR(skb));
1174 return PTR_ERR(skb);
1175 }
1176
1177 if (skb->len != sizeof(*ver)) {
1178 BT_ERR("%s Intel version event length mismatch", hdev->name);
1179 kfree_skb(skb);
1180 return -EIO;
1181 }
1182
1183 ver = (struct intel_version *)skb->data;
1184 if (ver->status) {
1185 BT_ERR("%s Intel fw version event failed (%02x)", hdev->name,
1186 ver->status);
1187 kfree_skb(skb);
1188 return -bt_to_errno(ver->status);
1189 }
1190
1191 BT_INFO("%s: read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1192 hdev->name, ver->hw_platform, ver->hw_variant,
1193 ver->hw_revision, ver->fw_variant, ver->fw_revision,
1194 ver->fw_build_num, ver->fw_build_ww, ver->fw_build_yy,
1195 ver->fw_patch_num);
1196
1197 /* fw_patch_num indicates the version of patch the device currently
1198 * have. If there is no patch data in the device, it is always 0x00.
1199 * So, if it is other than 0x00, no need to patch the deivce again.
1200 */
1201 if (ver->fw_patch_num) {
1202 BT_INFO("%s: Intel device is already patched. patch num: %02x",
1203 hdev->name, ver->fw_patch_num);
1204 kfree_skb(skb);
1205 return 0;
1206 }
1207
1208 /* Opens the firmware patch file based on the firmware version read
1209 * from the controller. If it fails to open the matching firmware
1210 * patch file, it tries to open the default firmware patch file.
1211 * If no patch file is found, allow the device to operate without
1212 * a patch.
1213 */
1214 fw = btusb_setup_intel_get_fw(hdev, ver);
1215 if (!fw) {
1216 kfree_skb(skb);
1217 return 0;
1218 }
1219 fw_ptr = fw->data;
1220
1221 /* This Intel specific command enables the manufacturer mode of the
1222 * controller.
1223 *
1224 * Only while this mode is enabled, the driver can download the
1225 * firmware patch data and configuration parameters.
1226 */
1227 skb = __hci_cmd_sync(hdev, 0xfc11, 2, mfg_enable, HCI_INIT_TIMEOUT);
1228 if (IS_ERR(skb)) {
1229 BT_ERR("%s entering Intel manufacturer mode failed (%ld)",
1230 hdev->name, PTR_ERR(skb));
1231 release_firmware(fw);
1232 return PTR_ERR(skb);
1233 }
1234
1235 if (skb->data[0]) {
1236 u8 evt_status = skb->data[0];
1237 BT_ERR("%s enable Intel manufacturer mode event failed (%02x)",
1238 hdev->name, evt_status);
1239 kfree_skb(skb);
1240 release_firmware(fw);
1241 return -bt_to_errno(evt_status);
1242 }
1243 kfree_skb(skb);
1244
1245 disable_patch = 1;
1246
1247 /* The firmware data file consists of list of Intel specific HCI
1248 * commands and its expected events. The first byte indicates the
1249 * type of the message, either HCI command or HCI event.
1250 *
1251 * It reads the command and its expected event from the firmware file,
1252 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1253 * the returned event is compared with the event read from the firmware
1254 * file and it will continue until all the messages are downloaded to
1255 * the controller.
1256 *
1257 * Once the firmware patching is completed successfully,
1258 * the manufacturer mode is disabled with reset and activating the
1259 * downloaded patch.
1260 *
1261 * If the firmware patching fails, the manufacturer mode is
1262 * disabled with reset and deactivating the patch.
1263 *
1264 * If the default patch file is used, no reset is done when disabling
1265 * the manufacturer.
1266 */
1267 while (fw->size > fw_ptr - fw->data) {
1268 int ret;
1269
1270 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1271 &disable_patch);
1272 if (ret < 0)
1273 goto exit_mfg_deactivate;
1274 }
1275
1276 release_firmware(fw);
1277
1278 if (disable_patch)
1279 goto exit_mfg_disable;
1280
1281 /* Patching completed successfully and disable the manufacturer mode
1282 * with reset and activate the downloaded firmware patches.
1283 */
1284 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_activate),
1285 mfg_reset_activate, HCI_INIT_TIMEOUT);
1286 if (IS_ERR(skb)) {
1287 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1288 hdev->name, PTR_ERR(skb));
1289 return PTR_ERR(skb);
1290 }
1291 kfree_skb(skb);
1292
1293 BT_INFO("%s: Intel Bluetooth firmware patch completed and activated",
1294 hdev->name);
1295
1296 return 0;
1297
1298 exit_mfg_disable:
1299 /* Disable the manufacturer mode without reset */
1300 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_disable), mfg_disable,
1301 HCI_INIT_TIMEOUT);
1302 if (IS_ERR(skb)) {
1303 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1304 hdev->name, PTR_ERR(skb));
1305 return PTR_ERR(skb);
1306 }
1307 kfree_skb(skb);
1308
1309 BT_INFO("%s: Intel Bluetooth firmware patch completed", hdev->name);
1310 return 0;
1311
1312 exit_mfg_deactivate:
1313 release_firmware(fw);
1314
1315 /* Patching failed. Disable the manufacturer mode with reset and
1316 * deactivate the downloaded firmware patches.
1317 */
1318 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_deactivate),
1319 mfg_reset_deactivate, HCI_INIT_TIMEOUT);
1320 if (IS_ERR(skb)) {
1321 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1322 hdev->name, PTR_ERR(skb));
1323 return PTR_ERR(skb);
1324 }
1325 kfree_skb(skb);
1326
1327 BT_INFO("%s: Intel Bluetooth firmware patch completed and deactivated",
1328 hdev->name);
1329
1330 return 0;
1331 }
1332
1333 static int btusb_probe(struct usb_interface *intf,
1334 const struct usb_device_id *id)
1335 {
1336 struct usb_endpoint_descriptor *ep_desc;
1337 struct btusb_data *data;
1338 struct hci_dev *hdev;
1339 int i, err;
1340
1341 BT_DBG("intf %p id %p", intf, id);
1342
1343 /* interface numbers are hardcoded in the spec */
1344 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
1345 return -ENODEV;
1346
1347 if (!id->driver_info) {
1348 const struct usb_device_id *match;
1349 match = usb_match_id(intf, blacklist_table);
1350 if (match)
1351 id = match;
1352 }
1353
1354 if (id->driver_info == BTUSB_IGNORE)
1355 return -ENODEV;
1356
1357 if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
1358 return -ENODEV;
1359
1360 if (ignore_csr && id->driver_info & BTUSB_CSR)
1361 return -ENODEV;
1362
1363 if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
1364 return -ENODEV;
1365
1366 if (id->driver_info & BTUSB_ATH3012) {
1367 struct usb_device *udev = interface_to_usbdev(intf);
1368
1369 /* Old firmware would otherwise let ath3k driver load
1370 * patch and sysconfig files */
1371 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
1372 return -ENODEV;
1373 }
1374
1375 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
1376 if (!data)
1377 return -ENOMEM;
1378
1379 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1380 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1381
1382 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
1383 data->intr_ep = ep_desc;
1384 continue;
1385 }
1386
1387 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
1388 data->bulk_tx_ep = ep_desc;
1389 continue;
1390 }
1391
1392 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
1393 data->bulk_rx_ep = ep_desc;
1394 continue;
1395 }
1396 }
1397
1398 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
1399 return -ENODEV;
1400
1401 data->cmdreq_type = USB_TYPE_CLASS;
1402
1403 data->udev = interface_to_usbdev(intf);
1404 data->intf = intf;
1405
1406 spin_lock_init(&data->lock);
1407
1408 INIT_WORK(&data->work, btusb_work);
1409 INIT_WORK(&data->waker, btusb_waker);
1410 spin_lock_init(&data->txlock);
1411
1412 init_usb_anchor(&data->tx_anchor);
1413 init_usb_anchor(&data->intr_anchor);
1414 init_usb_anchor(&data->bulk_anchor);
1415 init_usb_anchor(&data->isoc_anchor);
1416 init_usb_anchor(&data->deferred);
1417
1418 hdev = hci_alloc_dev();
1419 if (!hdev)
1420 return -ENOMEM;
1421
1422 hdev->bus = HCI_USB;
1423 hci_set_drvdata(hdev, data);
1424
1425 data->hdev = hdev;
1426
1427 SET_HCIDEV_DEV(hdev, &intf->dev);
1428
1429 hdev->open = btusb_open;
1430 hdev->close = btusb_close;
1431 hdev->flush = btusb_flush;
1432 hdev->send = btusb_send_frame;
1433 hdev->notify = btusb_notify;
1434
1435 if (id->driver_info & BTUSB_BCM92035)
1436 hdev->setup = btusb_setup_bcm92035;
1437
1438 if (id->driver_info & BTUSB_INTEL)
1439 hdev->setup = btusb_setup_intel;
1440
1441 /* Interface numbers are hardcoded in the specification */
1442 data->isoc = usb_ifnum_to_if(data->udev, 1);
1443
1444 if (!reset)
1445 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1446
1447 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1448 if (!disable_scofix)
1449 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1450 }
1451
1452 if (id->driver_info & BTUSB_BROKEN_ISOC)
1453 data->isoc = NULL;
1454
1455 if (id->driver_info & BTUSB_DIGIANSWER) {
1456 data->cmdreq_type = USB_TYPE_VENDOR;
1457 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1458 }
1459
1460 if (id->driver_info & BTUSB_CSR) {
1461 struct usb_device *udev = data->udev;
1462
1463 /* Old firmware would otherwise execute USB reset */
1464 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
1465 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1466 }
1467
1468 if (id->driver_info & BTUSB_SNIFFER) {
1469 struct usb_device *udev = data->udev;
1470
1471 /* New sniffer firmware has crippled HCI interface */
1472 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1473 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1474
1475 data->isoc = NULL;
1476 }
1477
1478 if (data->isoc) {
1479 err = usb_driver_claim_interface(&btusb_driver,
1480 data->isoc, data);
1481 if (err < 0) {
1482 hci_free_dev(hdev);
1483 return err;
1484 }
1485 }
1486
1487 err = hci_register_dev(hdev);
1488 if (err < 0) {
1489 hci_free_dev(hdev);
1490 return err;
1491 }
1492
1493 usb_set_intfdata(intf, data);
1494
1495 return 0;
1496 }
1497
1498 static void btusb_disconnect(struct usb_interface *intf)
1499 {
1500 struct btusb_data *data = usb_get_intfdata(intf);
1501 struct hci_dev *hdev;
1502
1503 BT_DBG("intf %p", intf);
1504
1505 if (!data)
1506 return;
1507
1508 hdev = data->hdev;
1509 usb_set_intfdata(data->intf, NULL);
1510
1511 if (data->isoc)
1512 usb_set_intfdata(data->isoc, NULL);
1513
1514 hci_unregister_dev(hdev);
1515
1516 if (intf == data->isoc)
1517 usb_driver_release_interface(&btusb_driver, data->intf);
1518 else if (data->isoc)
1519 usb_driver_release_interface(&btusb_driver, data->isoc);
1520
1521 hci_free_dev(hdev);
1522 }
1523
1524 #ifdef CONFIG_PM
1525 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1526 {
1527 struct btusb_data *data = usb_get_intfdata(intf);
1528
1529 BT_DBG("intf %p", intf);
1530
1531 if (data->suspend_count++)
1532 return 0;
1533
1534 spin_lock_irq(&data->txlock);
1535 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
1536 set_bit(BTUSB_SUSPENDING, &data->flags);
1537 spin_unlock_irq(&data->txlock);
1538 } else {
1539 spin_unlock_irq(&data->txlock);
1540 data->suspend_count--;
1541 return -EBUSY;
1542 }
1543
1544 cancel_work_sync(&data->work);
1545
1546 btusb_stop_traffic(data);
1547 usb_kill_anchored_urbs(&data->tx_anchor);
1548
1549 return 0;
1550 }
1551
1552 static void play_deferred(struct btusb_data *data)
1553 {
1554 struct urb *urb;
1555 int err;
1556
1557 while ((urb = usb_get_from_anchor(&data->deferred))) {
1558 err = usb_submit_urb(urb, GFP_ATOMIC);
1559 if (err < 0)
1560 break;
1561
1562 data->tx_in_flight++;
1563 }
1564 usb_scuttle_anchored_urbs(&data->deferred);
1565 }
1566
1567 static int btusb_resume(struct usb_interface *intf)
1568 {
1569 struct btusb_data *data = usb_get_intfdata(intf);
1570 struct hci_dev *hdev = data->hdev;
1571 int err = 0;
1572
1573 BT_DBG("intf %p", intf);
1574
1575 if (--data->suspend_count)
1576 return 0;
1577
1578 if (!test_bit(HCI_RUNNING, &hdev->flags))
1579 goto done;
1580
1581 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1582 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1583 if (err < 0) {
1584 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1585 goto failed;
1586 }
1587 }
1588
1589 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1590 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1591 if (err < 0) {
1592 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1593 goto failed;
1594 }
1595
1596 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1597 }
1598
1599 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1600 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1601 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1602 else
1603 btusb_submit_isoc_urb(hdev, GFP_NOIO);
1604 }
1605
1606 spin_lock_irq(&data->txlock);
1607 play_deferred(data);
1608 clear_bit(BTUSB_SUSPENDING, &data->flags);
1609 spin_unlock_irq(&data->txlock);
1610 schedule_work(&data->work);
1611
1612 return 0;
1613
1614 failed:
1615 usb_scuttle_anchored_urbs(&data->deferred);
1616 done:
1617 spin_lock_irq(&data->txlock);
1618 clear_bit(BTUSB_SUSPENDING, &data->flags);
1619 spin_unlock_irq(&data->txlock);
1620
1621 return err;
1622 }
1623 #endif
1624
1625 static struct usb_driver btusb_driver = {
1626 .name = "btusb",
1627 .probe = btusb_probe,
1628 .disconnect = btusb_disconnect,
1629 #ifdef CONFIG_PM
1630 .suspend = btusb_suspend,
1631 .resume = btusb_resume,
1632 #endif
1633 .id_table = btusb_table,
1634 .supports_autosuspend = 1,
1635 .disable_hub_initiated_lpm = 1,
1636 };
1637
1638 module_usb_driver(btusb_driver);
1639
1640 module_param(ignore_dga, bool, 0644);
1641 MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1642
1643 module_param(ignore_csr, bool, 0644);
1644 MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1645
1646 module_param(ignore_sniffer, bool, 0644);
1647 MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1648
1649 module_param(disable_scofix, bool, 0644);
1650 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1651
1652 module_param(force_scofix, bool, 0644);
1653 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1654
1655 module_param(reset, bool, 0644);
1656 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1657
1658 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1659 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1660 MODULE_VERSION(VERSION);
1661 MODULE_LICENSE("GPL");
Linux kernel - Deliverables
This page took 0.091862 seconds and 5 git commands to generate.