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