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Merge tag 'v3.10.75' into update
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / bluetooth / btusb.c
1 /*
2 *
3 * Generic Bluetooth USB driver
4 *
5 * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org>
6 *
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 *
22 */
23
24 #include <linux/module.h>
25 #include <linux/usb.h>
26 #include <linux/firmware.h>
27
28 #include <net/bluetooth/bluetooth.h>
29 #include <net/bluetooth/hci_core.h>
30
31 #define VERSION "0.6"
32
33 static bool ignore_dga;
34 static bool ignore_csr;
35 static bool ignore_sniffer;
36 static bool disable_scofix;
37 static bool force_scofix;
38
39 static bool reset = 1;
40
41 static struct usb_driver btusb_driver;
42
43 #define BTUSB_IGNORE 0x01
44 #define BTUSB_DIGIANSWER 0x02
45 #define BTUSB_CSR 0x04
46 #define BTUSB_SNIFFER 0x08
47 #define BTUSB_BCM92035 0x10
48 #define BTUSB_BROKEN_ISOC 0x20
49 #define BTUSB_WRONG_SCO_MTU 0x40
50 #define BTUSB_ATH3012 0x80
51 #define BTUSB_INTEL 0x100
52
53 static struct usb_device_id btusb_table[] = {
54 /* Generic Bluetooth USB device */
55 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
56
57 /* Apple-specific (Broadcom) devices */
58 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01) },
59
60 /* 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 { } /* Terminating entry */
117 };
118
119 MODULE_DEVICE_TABLE(usb, btusb_table);
120
121 static struct usb_device_id blacklist_table[] = {
122 /* CSR BlueCore devices */
123 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
124
125 /* Broadcom BCM2033 without firmware */
126 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
127
128 /* Atheros 3011 with sflash firmware */
129 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
130 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
131 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
132 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
133 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
134 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
135
136 /* Atheros AR9285 Malbec with sflash firmware */
137 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
138
139 /* Atheros 3012 with sflash firmware */
140 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
141 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
142 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
143 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
144 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
145 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
146 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
147 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
148 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
149 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
150 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
151 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
152 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
153 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
154 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
155 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
156 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
157 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
158 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
159 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
160 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
161 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
162 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
163 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
164
165 /* Atheros AR5BBU12 with sflash firmware */
166 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
167
168 /* Atheros AR5BBU12 with sflash firmware */
169 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
170 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
171
172 /* Broadcom BCM2035 */
173 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
174 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
175 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
176
177 /* Broadcom BCM2045 */
178 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
179 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
180
181 /* IBM/Lenovo ThinkPad with Broadcom chip */
182 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
183 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
184
185 /* HP laptop with Broadcom chip */
186 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
187
188 /* Dell laptop with Broadcom chip */
189 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
190
191 /* Dell Wireless 370 and 410 devices */
192 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
193 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
194
195 /* Belkin F8T012 and F8T013 devices */
196 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
197 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
198
199 /* Asus WL-BTD202 device */
200 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
201
202 /* Kensington Bluetooth USB adapter */
203 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
204
205 /* RTX Telecom based adapters with buggy SCO support */
206 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
207 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
208
209 /* CONWISE Technology based adapters with buggy SCO support */
210 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
211
212 /* Digianswer devices */
213 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
214 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
215
216 /* CSR BlueCore Bluetooth Sniffer */
217 { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
218
219 /* Frontline ComProbe Bluetooth Sniffer */
220 { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
221
222 /* Intel Bluetooth device */
223 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
224
225 { } /* Terminating entry */
226 };
227
228 #define BTUSB_MAX_ISOC_FRAMES 10
229
230 #define BTUSB_INTR_RUNNING 0
231 #define BTUSB_BULK_RUNNING 1
232 #define BTUSB_ISOC_RUNNING 2
233 #define BTUSB_SUSPENDING 3
234 #define BTUSB_DID_ISO_RESUME 4
235
236 struct btusb_data {
237 struct hci_dev *hdev;
238 struct usb_device *udev;
239 struct usb_interface *intf;
240 struct usb_interface *isoc;
241
242 spinlock_t lock;
243
244 unsigned long flags;
245
246 struct work_struct work;
247 struct work_struct waker;
248
249 struct usb_anchor tx_anchor;
250 struct usb_anchor intr_anchor;
251 struct usb_anchor bulk_anchor;
252 struct usb_anchor isoc_anchor;
253 struct usb_anchor deferred;
254 int tx_in_flight;
255 spinlock_t txlock;
256
257 struct usb_endpoint_descriptor *intr_ep;
258 struct usb_endpoint_descriptor *bulk_tx_ep;
259 struct usb_endpoint_descriptor *bulk_rx_ep;
260 struct usb_endpoint_descriptor *isoc_tx_ep;
261 struct usb_endpoint_descriptor *isoc_rx_ep;
262
263 __u8 cmdreq_type;
264
265 unsigned int sco_num;
266 int isoc_altsetting;
267 int suspend_count;
268 };
269
270 static int inc_tx(struct btusb_data *data)
271 {
272 unsigned long flags;
273 int rv;
274
275 spin_lock_irqsave(&data->txlock, flags);
276 rv = test_bit(BTUSB_SUSPENDING, &data->flags);
277 if (!rv)
278 data->tx_in_flight++;
279 spin_unlock_irqrestore(&data->txlock, flags);
280
281 return rv;
282 }
283
284 static void btusb_intr_complete(struct urb *urb)
285 {
286 struct hci_dev *hdev = urb->context;
287 struct btusb_data *data = hci_get_drvdata(hdev);
288 int err;
289
290 BT_DBG("%s urb %p status %d count %d", hdev->name,
291 urb, urb->status, urb->actual_length);
292
293 if (!test_bit(HCI_RUNNING, &hdev->flags))
294 return;
295
296 if (urb->status == 0) {
297 hdev->stat.byte_rx += urb->actual_length;
298
299 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
300 urb->transfer_buffer,
301 urb->actual_length) < 0) {
302 BT_ERR("%s corrupted event packet", hdev->name);
303 hdev->stat.err_rx++;
304 }
305 } else if (urb->status == -ENOENT) {
306 /* Avoid suspend failed when usb_kill_urb */
307 return;
308 }
309
310 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
311 return;
312
313 usb_mark_last_busy(data->udev);
314 usb_anchor_urb(urb, &data->intr_anchor);
315
316 err = usb_submit_urb(urb, GFP_ATOMIC);
317 if (err < 0) {
318 /* -EPERM: urb is being killed;
319 * -ENODEV: device got disconnected */
320 if (err != -EPERM && err != -ENODEV)
321 BT_ERR("%s urb %p failed to resubmit (%d)",
322 hdev->name, urb, -err);
323 usb_unanchor_urb(urb);
324 }
325 }
326
327 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
328 {
329 struct btusb_data *data = hci_get_drvdata(hdev);
330 struct urb *urb;
331 unsigned char *buf;
332 unsigned int pipe;
333 int err, size;
334
335 BT_DBG("%s", hdev->name);
336
337 if (!data->intr_ep)
338 return -ENODEV;
339
340 urb = usb_alloc_urb(0, mem_flags);
341 if (!urb)
342 return -ENOMEM;
343
344 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
345
346 buf = kmalloc(size, mem_flags);
347 if (!buf) {
348 usb_free_urb(urb);
349 return -ENOMEM;
350 }
351
352 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
353
354 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
355 btusb_intr_complete, hdev,
356 data->intr_ep->bInterval);
357
358 urb->transfer_flags |= URB_FREE_BUFFER;
359
360 usb_anchor_urb(urb, &data->intr_anchor);
361
362 err = usb_submit_urb(urb, mem_flags);
363 if (err < 0) {
364 if (err != -EPERM && err != -ENODEV)
365 BT_ERR("%s urb %p submission failed (%d)",
366 hdev->name, urb, -err);
367 usb_unanchor_urb(urb);
368 }
369
370 usb_free_urb(urb);
371
372 return err;
373 }
374
375 static void btusb_bulk_complete(struct urb *urb)
376 {
377 struct hci_dev *hdev = urb->context;
378 struct btusb_data *data = hci_get_drvdata(hdev);
379 int err;
380
381 BT_DBG("%s urb %p status %d count %d", hdev->name,
382 urb, urb->status, urb->actual_length);
383
384 if (!test_bit(HCI_RUNNING, &hdev->flags))
385 return;
386
387 if (urb->status == 0) {
388 hdev->stat.byte_rx += urb->actual_length;
389
390 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
391 urb->transfer_buffer,
392 urb->actual_length) < 0) {
393 BT_ERR("%s corrupted ACL packet", hdev->name);
394 hdev->stat.err_rx++;
395 }
396 } else if (urb->status == -ENOENT) {
397 /* Avoid suspend failed when usb_kill_urb */
398 return;
399 }
400
401 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
402 return;
403
404 usb_anchor_urb(urb, &data->bulk_anchor);
405 usb_mark_last_busy(data->udev);
406
407 err = usb_submit_urb(urb, GFP_ATOMIC);
408 if (err < 0) {
409 /* -EPERM: urb is being killed;
410 * -ENODEV: device got disconnected */
411 if (err != -EPERM && err != -ENODEV)
412 BT_ERR("%s urb %p failed to resubmit (%d)",
413 hdev->name, urb, -err);
414 usb_unanchor_urb(urb);
415 }
416 }
417
418 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
419 {
420 struct btusb_data *data = hci_get_drvdata(hdev);
421 struct urb *urb;
422 unsigned char *buf;
423 unsigned int pipe;
424 int err, size = HCI_MAX_FRAME_SIZE;
425
426 BT_DBG("%s", hdev->name);
427
428 if (!data->bulk_rx_ep)
429 return -ENODEV;
430
431 urb = usb_alloc_urb(0, mem_flags);
432 if (!urb)
433 return -ENOMEM;
434
435 buf = kmalloc(size, mem_flags);
436 if (!buf) {
437 usb_free_urb(urb);
438 return -ENOMEM;
439 }
440
441 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
442
443 usb_fill_bulk_urb(urb, data->udev, pipe,
444 buf, size, btusb_bulk_complete, hdev);
445
446 urb->transfer_flags |= URB_FREE_BUFFER;
447
448 usb_mark_last_busy(data->udev);
449 usb_anchor_urb(urb, &data->bulk_anchor);
450
451 err = usb_submit_urb(urb, mem_flags);
452 if (err < 0) {
453 if (err != -EPERM && err != -ENODEV)
454 BT_ERR("%s urb %p submission failed (%d)",
455 hdev->name, urb, -err);
456 usb_unanchor_urb(urb);
457 }
458
459 usb_free_urb(urb);
460
461 return err;
462 }
463
464 static void btusb_isoc_complete(struct urb *urb)
465 {
466 struct hci_dev *hdev = urb->context;
467 struct btusb_data *data = hci_get_drvdata(hdev);
468 int i, err;
469
470 BT_DBG("%s urb %p status %d count %d", hdev->name,
471 urb, urb->status, urb->actual_length);
472
473 if (!test_bit(HCI_RUNNING, &hdev->flags))
474 return;
475
476 if (urb->status == 0) {
477 for (i = 0; i < urb->number_of_packets; i++) {
478 unsigned int offset = urb->iso_frame_desc[i].offset;
479 unsigned int length = urb->iso_frame_desc[i].actual_length;
480
481 if (urb->iso_frame_desc[i].status)
482 continue;
483
484 hdev->stat.byte_rx += length;
485
486 if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
487 urb->transfer_buffer + offset,
488 length) < 0) {
489 BT_ERR("%s corrupted SCO packet", hdev->name);
490 hdev->stat.err_rx++;
491 }
492 }
493 } else if (urb->status == -ENOENT) {
494 /* Avoid suspend failed when usb_kill_urb */
495 return;
496 }
497
498 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
499 return;
500
501 usb_anchor_urb(urb, &data->isoc_anchor);
502
503 err = usb_submit_urb(urb, GFP_ATOMIC);
504 if (err < 0) {
505 /* -EPERM: urb is being killed;
506 * -ENODEV: device got disconnected */
507 if (err != -EPERM && err != -ENODEV)
508 BT_ERR("%s urb %p failed to resubmit (%d)",
509 hdev->name, urb, -err);
510 usb_unanchor_urb(urb);
511 }
512 }
513
514 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
515 {
516 int i, offset = 0;
517
518 BT_DBG("len %d mtu %d", len, mtu);
519
520 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
521 i++, offset += mtu, len -= mtu) {
522 urb->iso_frame_desc[i].offset = offset;
523 urb->iso_frame_desc[i].length = mtu;
524 }
525
526 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
527 urb->iso_frame_desc[i].offset = offset;
528 urb->iso_frame_desc[i].length = len;
529 i++;
530 }
531
532 urb->number_of_packets = i;
533 }
534
535 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
536 {
537 struct btusb_data *data = hci_get_drvdata(hdev);
538 struct urb *urb;
539 unsigned char *buf;
540 unsigned int pipe;
541 int err, size;
542
543 BT_DBG("%s", hdev->name);
544
545 if (!data->isoc_rx_ep)
546 return -ENODEV;
547
548 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
549 if (!urb)
550 return -ENOMEM;
551
552 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
553 BTUSB_MAX_ISOC_FRAMES;
554
555 buf = kmalloc(size, mem_flags);
556 if (!buf) {
557 usb_free_urb(urb);
558 return -ENOMEM;
559 }
560
561 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
562
563 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
564 hdev, data->isoc_rx_ep->bInterval);
565
566 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
567
568 __fill_isoc_descriptor(urb, size,
569 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
570
571 usb_anchor_urb(urb, &data->isoc_anchor);
572
573 err = usb_submit_urb(urb, mem_flags);
574 if (err < 0) {
575 if (err != -EPERM && err != -ENODEV)
576 BT_ERR("%s urb %p submission failed (%d)",
577 hdev->name, urb, -err);
578 usb_unanchor_urb(urb);
579 }
580
581 usb_free_urb(urb);
582
583 return err;
584 }
585
586 static void btusb_tx_complete(struct urb *urb)
587 {
588 struct sk_buff *skb = urb->context;
589 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
590 struct btusb_data *data = hci_get_drvdata(hdev);
591
592 BT_DBG("%s urb %p status %d count %d", hdev->name,
593 urb, urb->status, urb->actual_length);
594
595 if (!test_bit(HCI_RUNNING, &hdev->flags))
596 goto done;
597
598 if (!urb->status)
599 hdev->stat.byte_tx += urb->transfer_buffer_length;
600 else
601 hdev->stat.err_tx++;
602
603 done:
604 spin_lock(&data->txlock);
605 data->tx_in_flight--;
606 spin_unlock(&data->txlock);
607
608 kfree(urb->setup_packet);
609
610 kfree_skb(skb);
611 }
612
613 static void btusb_isoc_tx_complete(struct urb *urb)
614 {
615 struct sk_buff *skb = urb->context;
616 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
617
618 BT_DBG("%s urb %p status %d count %d", hdev->name,
619 urb, urb->status, urb->actual_length);
620
621 if (!test_bit(HCI_RUNNING, &hdev->flags))
622 goto done;
623
624 if (!urb->status)
625 hdev->stat.byte_tx += urb->transfer_buffer_length;
626 else
627 hdev->stat.err_tx++;
628
629 done:
630 kfree(urb->setup_packet);
631
632 kfree_skb(skb);
633 }
634
635 static int btusb_open(struct hci_dev *hdev)
636 {
637 struct btusb_data *data = hci_get_drvdata(hdev);
638 int err;
639
640 BT_DBG("%s", hdev->name);
641
642 err = usb_autopm_get_interface(data->intf);
643 if (err < 0)
644 return err;
645
646 data->intf->needs_remote_wakeup = 1;
647
648 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
649 goto done;
650
651 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
652 goto done;
653
654 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
655 if (err < 0)
656 goto failed;
657
658 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
659 if (err < 0) {
660 usb_kill_anchored_urbs(&data->intr_anchor);
661 goto failed;
662 }
663
664 set_bit(BTUSB_BULK_RUNNING, &data->flags);
665 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
666
667 done:
668 usb_autopm_put_interface(data->intf);
669 return 0;
670
671 failed:
672 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
673 clear_bit(HCI_RUNNING, &hdev->flags);
674 usb_autopm_put_interface(data->intf);
675 return err;
676 }
677
678 static void btusb_stop_traffic(struct btusb_data *data)
679 {
680 usb_kill_anchored_urbs(&data->intr_anchor);
681 usb_kill_anchored_urbs(&data->bulk_anchor);
682 usb_kill_anchored_urbs(&data->isoc_anchor);
683 }
684
685 static int btusb_close(struct hci_dev *hdev)
686 {
687 struct btusb_data *data = hci_get_drvdata(hdev);
688 int err;
689
690 BT_DBG("%s", hdev->name);
691
692 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
693 return 0;
694
695 cancel_work_sync(&data->work);
696 cancel_work_sync(&data->waker);
697
698 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
699 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
700 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
701
702 btusb_stop_traffic(data);
703 err = usb_autopm_get_interface(data->intf);
704 if (err < 0)
705 goto failed;
706
707 data->intf->needs_remote_wakeup = 0;
708 usb_autopm_put_interface(data->intf);
709
710 failed:
711 usb_scuttle_anchored_urbs(&data->deferred);
712 return 0;
713 }
714
715 static int btusb_flush(struct hci_dev *hdev)
716 {
717 struct btusb_data *data = hci_get_drvdata(hdev);
718
719 BT_DBG("%s", hdev->name);
720
721 usb_kill_anchored_urbs(&data->tx_anchor);
722
723 return 0;
724 }
725
726 static int btusb_send_frame(struct sk_buff *skb)
727 {
728 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
729 struct btusb_data *data = hci_get_drvdata(hdev);
730 struct usb_ctrlrequest *dr;
731 struct urb *urb;
732 unsigned int pipe;
733 int err;
734
735 BT_DBG("%s", hdev->name);
736
737 if (!test_bit(HCI_RUNNING, &hdev->flags))
738 return -EBUSY;
739
740 switch (bt_cb(skb)->pkt_type) {
741 case HCI_COMMAND_PKT:
742 urb = usb_alloc_urb(0, GFP_ATOMIC);
743 if (!urb)
744 return -ENOMEM;
745
746 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
747 if (!dr) {
748 usb_free_urb(urb);
749 return -ENOMEM;
750 }
751
752 dr->bRequestType = data->cmdreq_type;
753 dr->bRequest = 0;
754 dr->wIndex = 0;
755 dr->wValue = 0;
756 dr->wLength = __cpu_to_le16(skb->len);
757
758 pipe = usb_sndctrlpipe(data->udev, 0x00);
759
760 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
761 skb->data, skb->len, btusb_tx_complete, skb);
762
763 hdev->stat.cmd_tx++;
764 break;
765
766 case HCI_ACLDATA_PKT:
767 if (!data->bulk_tx_ep)
768 return -ENODEV;
769
770 urb = usb_alloc_urb(0, GFP_ATOMIC);
771 if (!urb)
772 return -ENOMEM;
773
774 pipe = usb_sndbulkpipe(data->udev,
775 data->bulk_tx_ep->bEndpointAddress);
776
777 usb_fill_bulk_urb(urb, data->udev, pipe,
778 skb->data, skb->len, btusb_tx_complete, skb);
779
780 hdev->stat.acl_tx++;
781 break;
782
783 case HCI_SCODATA_PKT:
784 if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
785 return -ENODEV;
786
787 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
788 if (!urb)
789 return -ENOMEM;
790
791 pipe = usb_sndisocpipe(data->udev,
792 data->isoc_tx_ep->bEndpointAddress);
793
794 usb_fill_int_urb(urb, data->udev, pipe,
795 skb->data, skb->len, btusb_isoc_tx_complete,
796 skb, data->isoc_tx_ep->bInterval);
797
798 urb->transfer_flags = URB_ISO_ASAP;
799
800 __fill_isoc_descriptor(urb, skb->len,
801 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
802
803 hdev->stat.sco_tx++;
804 goto skip_waking;
805
806 default:
807 return -EILSEQ;
808 }
809
810 err = inc_tx(data);
811 if (err) {
812 usb_anchor_urb(urb, &data->deferred);
813 schedule_work(&data->waker);
814 err = 0;
815 goto done;
816 }
817
818 skip_waking:
819 usb_anchor_urb(urb, &data->tx_anchor);
820
821 err = usb_submit_urb(urb, GFP_ATOMIC);
822 if (err < 0) {
823 if (err != -EPERM && err != -ENODEV)
824 BT_ERR("%s urb %p submission failed (%d)",
825 hdev->name, urb, -err);
826 kfree(urb->setup_packet);
827 usb_unanchor_urb(urb);
828 } else {
829 usb_mark_last_busy(data->udev);
830 }
831
832 done:
833 usb_free_urb(urb);
834 return err;
835 }
836
837 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
838 {
839 struct btusb_data *data = hci_get_drvdata(hdev);
840
841 BT_DBG("%s evt %d", hdev->name, evt);
842
843 if (hdev->conn_hash.sco_num != data->sco_num) {
844 data->sco_num = hdev->conn_hash.sco_num;
845 schedule_work(&data->work);
846 }
847 }
848
849 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
850 {
851 struct btusb_data *data = hci_get_drvdata(hdev);
852 struct usb_interface *intf = data->isoc;
853 struct usb_endpoint_descriptor *ep_desc;
854 int i, err;
855
856 if (!data->isoc)
857 return -ENODEV;
858
859 err = usb_set_interface(data->udev, 1, altsetting);
860 if (err < 0) {
861 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
862 return err;
863 }
864
865 data->isoc_altsetting = altsetting;
866
867 data->isoc_tx_ep = NULL;
868 data->isoc_rx_ep = NULL;
869
870 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
871 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
872
873 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
874 data->isoc_tx_ep = ep_desc;
875 continue;
876 }
877
878 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
879 data->isoc_rx_ep = ep_desc;
880 continue;
881 }
882 }
883
884 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
885 BT_ERR("%s invalid SCO descriptors", hdev->name);
886 return -ENODEV;
887 }
888
889 return 0;
890 }
891
892 static void btusb_work(struct work_struct *work)
893 {
894 struct btusb_data *data = container_of(work, struct btusb_data, work);
895 struct hci_dev *hdev = data->hdev;
896 int new_alts;
897 int err;
898
899 if (hdev->conn_hash.sco_num > 0) {
900 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
901 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
902 if (err < 0) {
903 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
904 usb_kill_anchored_urbs(&data->isoc_anchor);
905 return;
906 }
907
908 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
909 }
910
911 if (hdev->voice_setting & 0x0020) {
912 static const int alts[3] = { 2, 4, 5 };
913 new_alts = alts[hdev->conn_hash.sco_num - 1];
914 } else {
915 new_alts = hdev->conn_hash.sco_num;
916 }
917
918 if (data->isoc_altsetting != new_alts) {
919 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
920 usb_kill_anchored_urbs(&data->isoc_anchor);
921
922 if (__set_isoc_interface(hdev, new_alts) < 0)
923 return;
924 }
925
926 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
927 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
928 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
929 else
930 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
931 }
932 } else {
933 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
934 usb_kill_anchored_urbs(&data->isoc_anchor);
935
936 __set_isoc_interface(hdev, 0);
937 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
938 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
939 }
940 }
941
942 static void btusb_waker(struct work_struct *work)
943 {
944 struct btusb_data *data = container_of(work, struct btusb_data, waker);
945 int err;
946
947 err = usb_autopm_get_interface(data->intf);
948 if (err < 0)
949 return;
950
951 usb_autopm_put_interface(data->intf);
952 }
953
954 static int btusb_setup_bcm92035(struct hci_dev *hdev)
955 {
956 struct sk_buff *skb;
957 u8 val = 0x00;
958
959 BT_DBG("%s", hdev->name);
960
961 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
962 if (IS_ERR(skb))
963 BT_ERR("BCM92035 command failed (%ld)", -PTR_ERR(skb));
964 else
965 kfree_skb(skb);
966
967 return 0;
968 }
969
970 struct intel_version {
971 u8 status;
972 u8 hw_platform;
973 u8 hw_variant;
974 u8 hw_revision;
975 u8 fw_variant;
976 u8 fw_revision;
977 u8 fw_build_num;
978 u8 fw_build_ww;
979 u8 fw_build_yy;
980 u8 fw_patch_num;
981 } __packed;
982
983 static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
984 struct intel_version *ver)
985 {
986 const struct firmware *fw;
987 char fwname[64];
988 int ret;
989
990 snprintf(fwname, sizeof(fwname),
991 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
992 ver->hw_platform, ver->hw_variant, ver->hw_revision,
993 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
994 ver->fw_build_ww, ver->fw_build_yy);
995
996 ret = request_firmware(&fw, fwname, &hdev->dev);
997 if (ret < 0) {
998 if (ret == -EINVAL) {
999 BT_ERR("%s Intel firmware file request failed (%d)",
1000 hdev->name, ret);
1001 return NULL;
1002 }
1003
1004 BT_ERR("%s failed to open Intel firmware file: %s(%d)",
1005 hdev->name, fwname, ret);
1006
1007 /* If the correct firmware patch file is not found, use the
1008 * default firmware patch file instead
1009 */
1010 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1011 ver->hw_platform, ver->hw_variant);
1012 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1013 BT_ERR("%s failed to open default Intel fw file: %s",
1014 hdev->name, fwname);
1015 return NULL;
1016 }
1017 }
1018
1019 BT_INFO("%s: Intel Bluetooth firmware file: %s", hdev->name, fwname);
1020
1021 return fw;
1022 }
1023
1024 static int btusb_setup_intel_patching(struct hci_dev *hdev,
1025 const struct firmware *fw,
1026 const u8 **fw_ptr, int *disable_patch)
1027 {
1028 struct sk_buff *skb;
1029 struct hci_command_hdr *cmd;
1030 const u8 *cmd_param;
1031 struct hci_event_hdr *evt = NULL;
1032 const u8 *evt_param = NULL;
1033 int remain = fw->size - (*fw_ptr - fw->data);
1034
1035 /* The first byte indicates the types of the patch command or event.
1036 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1037 * in the current firmware buffer doesn't start with 0x01 or
1038 * the size of remain buffer is smaller than HCI command header,
1039 * the firmware file is corrupted and it should stop the patching
1040 * process.
1041 */
1042 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1043 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name);
1044 return -EINVAL;
1045 }
1046 (*fw_ptr)++;
1047 remain--;
1048
1049 cmd = (struct hci_command_hdr *)(*fw_ptr);
1050 *fw_ptr += sizeof(*cmd);
1051 remain -= sizeof(*cmd);
1052
1053 /* Ensure that the remain firmware data is long enough than the length
1054 * of command parameter. If not, the firmware file is corrupted.
1055 */
1056 if (remain < cmd->plen) {
1057 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name);
1058 return -EFAULT;
1059 }
1060
1061 /* If there is a command that loads a patch in the firmware
1062 * file, then enable the patch upon success, otherwise just
1063 * disable the manufacturer mode, for example patch activation
1064 * is not required when the default firmware patch file is used
1065 * because there are no patch data to load.
1066 */
1067 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1068 *disable_patch = 0;
1069
1070 cmd_param = *fw_ptr;
1071 *fw_ptr += cmd->plen;
1072 remain -= cmd->plen;
1073
1074 /* This reads the expected events when the above command is sent to the
1075 * device. Some vendor commands expects more than one events, for
1076 * example command status event followed by vendor specific event.
1077 * For this case, it only keeps the last expected event. so the command
1078 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1079 * last expected event.
1080 */
1081 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1082 (*fw_ptr)++;
1083 remain--;
1084
1085 evt = (struct hci_event_hdr *)(*fw_ptr);
1086 *fw_ptr += sizeof(*evt);
1087 remain -= sizeof(*evt);
1088
1089 if (remain < evt->plen) {
1090 BT_ERR("%s Intel fw corrupted: invalid evt len",
1091 hdev->name);
1092 return -EFAULT;
1093 }
1094
1095 evt_param = *fw_ptr;
1096 *fw_ptr += evt->plen;
1097 remain -= evt->plen;
1098 }
1099
1100 /* Every HCI commands in the firmware file has its correspond event.
1101 * If event is not found or remain is smaller than zero, the firmware
1102 * file is corrupted.
1103 */
1104 if (!evt || !evt_param || remain < 0) {
1105 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name);
1106 return -EFAULT;
1107 }
1108
1109 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1110 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1111 if (IS_ERR(skb)) {
1112 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)",
1113 hdev->name, cmd->opcode, PTR_ERR(skb));
1114 return PTR_ERR(skb);
1115 }
1116
1117 /* It ensures that the returned event matches the event data read from
1118 * the firmware file. At fist, it checks the length and then
1119 * the contents of the event.
1120 */
1121 if (skb->len != evt->plen) {
1122 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name,
1123 le16_to_cpu(cmd->opcode));
1124 kfree_skb(skb);
1125 return -EFAULT;
1126 }
1127
1128 if (memcmp(skb->data, evt_param, evt->plen)) {
1129 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)",
1130 hdev->name, le16_to_cpu(cmd->opcode));
1131 kfree_skb(skb);
1132 return -EFAULT;
1133 }
1134 kfree_skb(skb);
1135
1136 return 0;
1137 }
1138
1139 static int btusb_setup_intel(struct hci_dev *hdev)
1140 {
1141 struct sk_buff *skb;
1142 const struct firmware *fw;
1143 const u8 *fw_ptr;
1144 int disable_patch;
1145 struct intel_version *ver;
1146
1147 const u8 mfg_enable[] = { 0x01, 0x00 };
1148 const u8 mfg_disable[] = { 0x00, 0x00 };
1149 const u8 mfg_reset_deactivate[] = { 0x00, 0x01 };
1150 const u8 mfg_reset_activate[] = { 0x00, 0x02 };
1151
1152 BT_DBG("%s", hdev->name);
1153
1154 /* The controller has a bug with the first HCI command sent to it
1155 * returning number of completed commands as zero. This would stall the
1156 * command processing in the Bluetooth core.
1157 *
1158 * As a workaround, send HCI Reset command first which will reset the
1159 * number of completed commands and allow normal command processing
1160 * from now on.
1161 */
1162 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1163 if (IS_ERR(skb)) {
1164 BT_ERR("%s sending initial HCI reset command failed (%ld)",
1165 hdev->name, PTR_ERR(skb));
1166 return PTR_ERR(skb);
1167 }
1168 kfree_skb(skb);
1169
1170 /* Read Intel specific controller version first to allow selection of
1171 * which firmware file to load.
1172 *
1173 * The returned information are hardware variant and revision plus
1174 * firmware variant, revision and build number.
1175 */
1176 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
1177 if (IS_ERR(skb)) {
1178 BT_ERR("%s reading Intel fw version command failed (%ld)",
1179 hdev->name, PTR_ERR(skb));
1180 return PTR_ERR(skb);
1181 }
1182
1183 if (skb->len != sizeof(*ver)) {
1184 BT_ERR("%s Intel version event length mismatch", hdev->name);
1185 kfree_skb(skb);
1186 return -EIO;
1187 }
1188
1189 ver = (struct intel_version *)skb->data;
1190 if (ver->status) {
1191 BT_ERR("%s Intel fw version event failed (%02x)", hdev->name,
1192 ver->status);
1193 kfree_skb(skb);
1194 return -bt_to_errno(ver->status);
1195 }
1196
1197 BT_INFO("%s: read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1198 hdev->name, ver->hw_platform, ver->hw_variant,
1199 ver->hw_revision, ver->fw_variant, ver->fw_revision,
1200 ver->fw_build_num, ver->fw_build_ww, ver->fw_build_yy,
1201 ver->fw_patch_num);
1202
1203 /* fw_patch_num indicates the version of patch the device currently
1204 * have. If there is no patch data in the device, it is always 0x00.
1205 * So, if it is other than 0x00, no need to patch the deivce again.
1206 */
1207 if (ver->fw_patch_num) {
1208 BT_INFO("%s: Intel device is already patched. patch num: %02x",
1209 hdev->name, ver->fw_patch_num);
1210 kfree_skb(skb);
1211 return 0;
1212 }
1213
1214 /* Opens the firmware patch file based on the firmware version read
1215 * from the controller. If it fails to open the matching firmware
1216 * patch file, it tries to open the default firmware patch file.
1217 * If no patch file is found, allow the device to operate without
1218 * a patch.
1219 */
1220 fw = btusb_setup_intel_get_fw(hdev, ver);
1221 if (!fw) {
1222 kfree_skb(skb);
1223 return 0;
1224 }
1225 fw_ptr = fw->data;
1226
1227 /* This Intel specific command enables the manufacturer mode of the
1228 * controller.
1229 *
1230 * Only while this mode is enabled, the driver can download the
1231 * firmware patch data and configuration parameters.
1232 */
1233 skb = __hci_cmd_sync(hdev, 0xfc11, 2, mfg_enable, HCI_INIT_TIMEOUT);
1234 if (IS_ERR(skb)) {
1235 BT_ERR("%s entering Intel manufacturer mode failed (%ld)",
1236 hdev->name, PTR_ERR(skb));
1237 release_firmware(fw);
1238 return PTR_ERR(skb);
1239 }
1240
1241 if (skb->data[0]) {
1242 u8 evt_status = skb->data[0];
1243 BT_ERR("%s enable Intel manufacturer mode event failed (%02x)",
1244 hdev->name, evt_status);
1245 kfree_skb(skb);
1246 release_firmware(fw);
1247 return -bt_to_errno(evt_status);
1248 }
1249 kfree_skb(skb);
1250
1251 disable_patch = 1;
1252
1253 /* The firmware data file consists of list of Intel specific HCI
1254 * commands and its expected events. The first byte indicates the
1255 * type of the message, either HCI command or HCI event.
1256 *
1257 * It reads the command and its expected event from the firmware file,
1258 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1259 * the returned event is compared with the event read from the firmware
1260 * file and it will continue until all the messages are downloaded to
1261 * the controller.
1262 *
1263 * Once the firmware patching is completed successfully,
1264 * the manufacturer mode is disabled with reset and activating the
1265 * downloaded patch.
1266 *
1267 * If the firmware patching fails, the manufacturer mode is
1268 * disabled with reset and deactivating the patch.
1269 *
1270 * If the default patch file is used, no reset is done when disabling
1271 * the manufacturer.
1272 */
1273 while (fw->size > fw_ptr - fw->data) {
1274 int ret;
1275
1276 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1277 &disable_patch);
1278 if (ret < 0)
1279 goto exit_mfg_deactivate;
1280 }
1281
1282 release_firmware(fw);
1283
1284 if (disable_patch)
1285 goto exit_mfg_disable;
1286
1287 /* Patching completed successfully and disable the manufacturer mode
1288 * with reset and activate the downloaded firmware patches.
1289 */
1290 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_activate),
1291 mfg_reset_activate, HCI_INIT_TIMEOUT);
1292 if (IS_ERR(skb)) {
1293 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1294 hdev->name, PTR_ERR(skb));
1295 return PTR_ERR(skb);
1296 }
1297 kfree_skb(skb);
1298
1299 BT_INFO("%s: Intel Bluetooth firmware patch completed and activated",
1300 hdev->name);
1301
1302 return 0;
1303
1304 exit_mfg_disable:
1305 /* Disable the manufacturer mode without reset */
1306 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_disable), mfg_disable,
1307 HCI_INIT_TIMEOUT);
1308 if (IS_ERR(skb)) {
1309 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1310 hdev->name, PTR_ERR(skb));
1311 return PTR_ERR(skb);
1312 }
1313 kfree_skb(skb);
1314
1315 BT_INFO("%s: Intel Bluetooth firmware patch completed", hdev->name);
1316 return 0;
1317
1318 exit_mfg_deactivate:
1319 release_firmware(fw);
1320
1321 /* Patching failed. Disable the manufacturer mode with reset and
1322 * deactivate the downloaded firmware patches.
1323 */
1324 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_deactivate),
1325 mfg_reset_deactivate, HCI_INIT_TIMEOUT);
1326 if (IS_ERR(skb)) {
1327 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1328 hdev->name, PTR_ERR(skb));
1329 return PTR_ERR(skb);
1330 }
1331 kfree_skb(skb);
1332
1333 BT_INFO("%s: Intel Bluetooth firmware patch completed and deactivated",
1334 hdev->name);
1335
1336 return 0;
1337 }
1338
1339 static int btusb_probe(struct usb_interface *intf,
1340 const struct usb_device_id *id)
1341 {
1342 struct usb_endpoint_descriptor *ep_desc;
1343 struct btusb_data *data;
1344 struct hci_dev *hdev;
1345 int i, err;
1346
1347 BT_DBG("intf %p id %p", intf, id);
1348
1349 /* interface numbers are hardcoded in the spec */
1350 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
1351 return -ENODEV;
1352
1353 if (!id->driver_info) {
1354 const struct usb_device_id *match;
1355 match = usb_match_id(intf, blacklist_table);
1356 if (match)
1357 id = match;
1358 }
1359
1360 if (id->driver_info == BTUSB_IGNORE)
1361 return -ENODEV;
1362
1363 if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
1364 return -ENODEV;
1365
1366 if (ignore_csr && id->driver_info & BTUSB_CSR)
1367 return -ENODEV;
1368
1369 if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
1370 return -ENODEV;
1371
1372 if (id->driver_info & BTUSB_ATH3012) {
1373 struct usb_device *udev = interface_to_usbdev(intf);
1374
1375 /* Old firmware would otherwise let ath3k driver load
1376 * patch and sysconfig files */
1377 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
1378 return -ENODEV;
1379 }
1380
1381 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
1382 if (!data)
1383 return -ENOMEM;
1384
1385 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1386 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1387
1388 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
1389 data->intr_ep = ep_desc;
1390 continue;
1391 }
1392
1393 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
1394 data->bulk_tx_ep = ep_desc;
1395 continue;
1396 }
1397
1398 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
1399 data->bulk_rx_ep = ep_desc;
1400 continue;
1401 }
1402 }
1403
1404 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
1405 return -ENODEV;
1406
1407 data->cmdreq_type = USB_TYPE_CLASS;
1408
1409 data->udev = interface_to_usbdev(intf);
1410 data->intf = intf;
1411
1412 spin_lock_init(&data->lock);
1413
1414 INIT_WORK(&data->work, btusb_work);
1415 INIT_WORK(&data->waker, btusb_waker);
1416 spin_lock_init(&data->txlock);
1417
1418 init_usb_anchor(&data->tx_anchor);
1419 init_usb_anchor(&data->intr_anchor);
1420 init_usb_anchor(&data->bulk_anchor);
1421 init_usb_anchor(&data->isoc_anchor);
1422 init_usb_anchor(&data->deferred);
1423
1424 hdev = hci_alloc_dev();
1425 if (!hdev)
1426 return -ENOMEM;
1427
1428 hdev->bus = HCI_USB;
1429 hci_set_drvdata(hdev, data);
1430
1431 data->hdev = hdev;
1432
1433 SET_HCIDEV_DEV(hdev, &intf->dev);
1434
1435 hdev->open = btusb_open;
1436 hdev->close = btusb_close;
1437 hdev->flush = btusb_flush;
1438 hdev->send = btusb_send_frame;
1439 hdev->notify = btusb_notify;
1440
1441 if (id->driver_info & BTUSB_BCM92035)
1442 hdev->setup = btusb_setup_bcm92035;
1443
1444 if (id->driver_info & BTUSB_INTEL)
1445 hdev->setup = btusb_setup_intel;
1446
1447 /* Interface numbers are hardcoded in the specification */
1448 data->isoc = usb_ifnum_to_if(data->udev, 1);
1449
1450 if (!reset)
1451 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1452
1453 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1454 if (!disable_scofix)
1455 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1456 }
1457
1458 if (id->driver_info & BTUSB_BROKEN_ISOC)
1459 data->isoc = NULL;
1460
1461 if (id->driver_info & BTUSB_DIGIANSWER) {
1462 data->cmdreq_type = USB_TYPE_VENDOR;
1463 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1464 }
1465
1466 if (id->driver_info & BTUSB_CSR) {
1467 struct usb_device *udev = data->udev;
1468
1469 /* Old firmware would otherwise execute USB reset */
1470 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
1471 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1472 }
1473
1474 if (id->driver_info & BTUSB_SNIFFER) {
1475 struct usb_device *udev = data->udev;
1476
1477 /* New sniffer firmware has crippled HCI interface */
1478 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1479 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1480
1481 data->isoc = NULL;
1482 }
1483
1484 if (data->isoc) {
1485 err = usb_driver_claim_interface(&btusb_driver,
1486 data->isoc, data);
1487 if (err < 0) {
1488 hci_free_dev(hdev);
1489 return err;
1490 }
1491 }
1492
1493 err = hci_register_dev(hdev);
1494 if (err < 0) {
1495 hci_free_dev(hdev);
1496 return err;
1497 }
1498
1499 usb_set_intfdata(intf, data);
1500
1501 return 0;
1502 }
1503
1504 static void btusb_disconnect(struct usb_interface *intf)
1505 {
1506 struct btusb_data *data = usb_get_intfdata(intf);
1507 struct hci_dev *hdev;
1508
1509 BT_DBG("intf %p", intf);
1510
1511 if (!data)
1512 return;
1513
1514 hdev = data->hdev;
1515 usb_set_intfdata(data->intf, NULL);
1516
1517 if (data->isoc)
1518 usb_set_intfdata(data->isoc, NULL);
1519
1520 hci_unregister_dev(hdev);
1521
1522 if (intf == data->isoc)
1523 usb_driver_release_interface(&btusb_driver, data->intf);
1524 else if (data->isoc)
1525 usb_driver_release_interface(&btusb_driver, data->isoc);
1526
1527 hci_free_dev(hdev);
1528 }
1529
1530 #ifdef CONFIG_PM
1531 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1532 {
1533 struct btusb_data *data = usb_get_intfdata(intf);
1534
1535 BT_DBG("intf %p", intf);
1536
1537 if (data->suspend_count++)
1538 return 0;
1539
1540 spin_lock_irq(&data->txlock);
1541 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
1542 set_bit(BTUSB_SUSPENDING, &data->flags);
1543 spin_unlock_irq(&data->txlock);
1544 } else {
1545 spin_unlock_irq(&data->txlock);
1546 data->suspend_count--;
1547 return -EBUSY;
1548 }
1549
1550 cancel_work_sync(&data->work);
1551
1552 btusb_stop_traffic(data);
1553 usb_kill_anchored_urbs(&data->tx_anchor);
1554
1555 return 0;
1556 }
1557
1558 static void play_deferred(struct btusb_data *data)
1559 {
1560 struct urb *urb;
1561 int err;
1562
1563 while ((urb = usb_get_from_anchor(&data->deferred))) {
1564 err = usb_submit_urb(urb, GFP_ATOMIC);
1565 if (err < 0)
1566 break;
1567
1568 data->tx_in_flight++;
1569 }
1570 usb_scuttle_anchored_urbs(&data->deferred);
1571 }
1572
1573 static int btusb_resume(struct usb_interface *intf)
1574 {
1575 struct btusb_data *data = usb_get_intfdata(intf);
1576 struct hci_dev *hdev = data->hdev;
1577 int err = 0;
1578
1579 BT_DBG("intf %p", intf);
1580
1581 if (--data->suspend_count)
1582 return 0;
1583
1584 if (!test_bit(HCI_RUNNING, &hdev->flags))
1585 goto done;
1586
1587 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1588 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1589 if (err < 0) {
1590 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1591 goto failed;
1592 }
1593 }
1594
1595 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1596 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1597 if (err < 0) {
1598 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1599 goto failed;
1600 }
1601
1602 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1603 }
1604
1605 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1606 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1607 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1608 else
1609 btusb_submit_isoc_urb(hdev, GFP_NOIO);
1610 }
1611
1612 spin_lock_irq(&data->txlock);
1613 play_deferred(data);
1614 clear_bit(BTUSB_SUSPENDING, &data->flags);
1615 spin_unlock_irq(&data->txlock);
1616 schedule_work(&data->work);
1617
1618 return 0;
1619
1620 failed:
1621 usb_scuttle_anchored_urbs(&data->deferred);
1622 done:
1623 spin_lock_irq(&data->txlock);
1624 clear_bit(BTUSB_SUSPENDING, &data->flags);
1625 spin_unlock_irq(&data->txlock);
1626
1627 return err;
1628 }
1629 #endif
1630
1631 static struct usb_driver btusb_driver = {
1632 .name = "btusb",
1633 .probe = btusb_probe,
1634 .disconnect = btusb_disconnect,
1635 #ifdef CONFIG_PM
1636 .suspend = btusb_suspend,
1637 .resume = btusb_resume,
1638 #endif
1639 .id_table = btusb_table,
1640 .supports_autosuspend = 1,
1641 .disable_hub_initiated_lpm = 1,
1642 };
1643
1644 module_usb_driver(btusb_driver);
1645
1646 module_param(ignore_dga, bool, 0644);
1647 MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1648
1649 module_param(ignore_csr, bool, 0644);
1650 MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1651
1652 module_param(ignore_sniffer, bool, 0644);
1653 MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1654
1655 module_param(disable_scofix, bool, 0644);
1656 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1657
1658 module_param(force_scofix, bool, 0644);
1659 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1660
1661 module_param(reset, bool, 0644);
1662 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1663
1664 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1665 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1666 MODULE_VERSION(VERSION);
1667 MODULE_LICENSE("GPL");
kernel source for telekom puls (alcatel/mediatek)