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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/kernel.h>
25#include <linux/module.h>
26#include <linux/init.h>
27#include <linux/slab.h>
28#include <linux/types.h>
29#include <linux/sched.h>
30#include <linux/errno.h>
31#include <linux/skbuff.h>
32
33#include <linux/usb.h>
34
35#include <net/bluetooth/bluetooth.h>
36#include <net/bluetooth/hci_core.h>
37
38#define VERSION "0.6"
39
40static int ignore_dga;
41static int ignore_csr;
42static int ignore_sniffer;
43static int disable_scofix;
44static int force_scofix;
45
46static int reset = 1;
47
48static struct usb_driver btusb_driver;
49
50#define BTUSB_IGNORE 0x01
51#define BTUSB_DIGIANSWER 0x02
52#define BTUSB_CSR 0x04
53#define BTUSB_SNIFFER 0x08
54#define BTUSB_BCM92035 0x10
55#define BTUSB_BROKEN_ISOC 0x20
56#define BTUSB_WRONG_SCO_MTU 0x40
57#define BTUSB_ATH3012 0x80
58
59static struct usb_device_id btusb_table[] = {
60 /* Generic Bluetooth USB device */
61 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
62
63 /* Apple MacBookPro 7,1 */
64 { USB_DEVICE(0x05ac, 0x8213) },
65
66 /* Apple iMac11,1 */
67 { USB_DEVICE(0x05ac, 0x8215) },
68
69 /* Apple MacBookPro6,2 */
70 { USB_DEVICE(0x05ac, 0x8218) },
71
72 /* Apple MacBookAir3,1, MacBookAir3,2 */
73 { USB_DEVICE(0x05ac, 0x821b) },
74
75 /* Apple MacBookAir4,1 */
76 { USB_DEVICE(0x05ac, 0x821f) },
77
78 /* Apple MacBookPro8,2 */
79 { USB_DEVICE(0x05ac, 0x821a) },
80
81 /* Apple MacMini5,1 */
82 { USB_DEVICE(0x05ac, 0x8281) },
83
84 /* AVM BlueFRITZ! USB v2.0 */
85 { USB_DEVICE(0x057c, 0x3800) },
86
87 /* Bluetooth Ultraport Module from IBM */
88 { USB_DEVICE(0x04bf, 0x030a) },
89
90 /* ALPS Modules with non-standard id */
91 { USB_DEVICE(0x044e, 0x3001) },
92 { USB_DEVICE(0x044e, 0x3002) },
93
94 /* Ericsson with non-standard id */
95 { USB_DEVICE(0x0bdb, 0x1002) },
96
97 /* Canyon CN-BTU1 with HID interfaces */
98 { USB_DEVICE(0x0c10, 0x0000) },
99
100 { } /* Terminating entry */
101};
102
103MODULE_DEVICE_TABLE(usb, btusb_table);
104
105static struct usb_device_id blacklist_table[] = {
106 /* CSR BlueCore devices */
107 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
108
109 /* Broadcom BCM2033 without firmware */
110 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
111
112 /* Atheros 3011 with sflash firmware */
113 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
114 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
115 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
116
117 /* Atheros AR9285 Malbec with sflash firmware */
118 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
119
120 /* Atheros 3012 with sflash firmware */
121 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
122
123 /* Atheros AR5BBU12 with sflash firmware */
124 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
125
126 /* Broadcom BCM2035 */
127 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
128 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
129 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
130
131 /* Broadcom BCM2045 */
132 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
133 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
134
135 /* IBM/Lenovo ThinkPad with Broadcom chip */
136 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
137 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
138
139 /* HP laptop with Broadcom chip */
140 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
141
142 /* Dell laptop with Broadcom chip */
143 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
144
145 /* Dell Wireless 370 and 410 devices */
146 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
147 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
148
149 /* Belkin F8T012 and F8T013 devices */
150 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
151 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
152
153 /* Asus WL-BTD202 device */
154 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
155
156 /* Kensington Bluetooth USB adapter */
157 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
158
159 /* RTX Telecom based adapters with buggy SCO support */
160 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
161 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
162
163 /* CONWISE Technology based adapters with buggy SCO support */
164 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
165
166 /* Digianswer devices */
167 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
168 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
169
170 /* CSR BlueCore Bluetooth Sniffer */
171 { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
172
173 /* Frontline ComProbe Bluetooth Sniffer */
174 { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
175
176 { } /* Terminating entry */
177};
178
179#define BTUSB_MAX_ISOC_FRAMES 10
180
181#define BTUSB_INTR_RUNNING 0
182#define BTUSB_BULK_RUNNING 1
183#define BTUSB_ISOC_RUNNING 2
184#define BTUSB_SUSPENDING 3
185#define BTUSB_DID_ISO_RESUME 4
186
187struct btusb_data {
188 struct hci_dev *hdev;
189 struct usb_device *udev;
190 struct usb_interface *intf;
191 struct usb_interface *isoc;
192
193 spinlock_t lock;
194
195 unsigned long flags;
196
197 struct work_struct work;
198 struct work_struct waker;
199
200 struct usb_anchor tx_anchor;
201 struct usb_anchor intr_anchor;
202 struct usb_anchor bulk_anchor;
203 struct usb_anchor isoc_anchor;
204 struct usb_anchor deferred;
205 int tx_in_flight;
206 spinlock_t txlock;
207
208 struct usb_endpoint_descriptor *intr_ep;
209 struct usb_endpoint_descriptor *bulk_tx_ep;
210 struct usb_endpoint_descriptor *bulk_rx_ep;
211 struct usb_endpoint_descriptor *isoc_tx_ep;
212 struct usb_endpoint_descriptor *isoc_rx_ep;
213
214 __u8 cmdreq_type;
215
216 unsigned int sco_num;
217 int isoc_altsetting;
218 int suspend_count;
219};
220
221static int inc_tx(struct btusb_data *data)
222{
223 unsigned long flags;
224 int rv;
225
226 spin_lock_irqsave(&data->txlock, flags);
227 rv = test_bit(BTUSB_SUSPENDING, &data->flags);
228 if (!rv)
229 data->tx_in_flight++;
230 spin_unlock_irqrestore(&data->txlock, flags);
231
232 return rv;
233}
234
235static void btusb_intr_complete(struct urb *urb)
236{
237 struct hci_dev *hdev = urb->context;
238 struct btusb_data *data = hdev->driver_data;
239 int err;
240
241 BT_DBG("%s urb %p status %d count %d", hdev->name,
242 urb, urb->status, urb->actual_length);
243
244 if (!test_bit(HCI_RUNNING, &hdev->flags))
245 return;
246
247 if (urb->status == 0) {
248 hdev->stat.byte_rx += urb->actual_length;
249
250 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
251 urb->transfer_buffer,
252 urb->actual_length) < 0) {
253 BT_ERR("%s corrupted event packet", hdev->name);
254 hdev->stat.err_rx++;
255 }
256 }
257
258 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
259 return;
260
261 usb_mark_last_busy(data->udev);
262 usb_anchor_urb(urb, &data->intr_anchor);
263
264 err = usb_submit_urb(urb, GFP_ATOMIC);
265 if (err < 0) {
266 /* -EPERM: urb is being killed;
267 * -ENODEV: device got disconnected */
268 if (err != -EPERM && err != -ENODEV)
269 BT_ERR("%s urb %p failed to resubmit (%d)",
270 hdev->name, urb, -err);
271 usb_unanchor_urb(urb);
272 }
273}
274
275static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
276{
277 struct btusb_data *data = hdev->driver_data;
278 struct urb *urb;
279 unsigned char *buf;
280 unsigned int pipe;
281 int err, size;
282
283 BT_DBG("%s", hdev->name);
284
285 if (!data->intr_ep)
286 return -ENODEV;
287
288 urb = usb_alloc_urb(0, mem_flags);
289 if (!urb)
290 return -ENOMEM;
291
292 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
293
294 buf = kmalloc(size, mem_flags);
295 if (!buf) {
296 usb_free_urb(urb);
297 return -ENOMEM;
298 }
299
300 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
301
302 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
303 btusb_intr_complete, hdev,
304 data->intr_ep->bInterval);
305
306 urb->transfer_flags |= URB_FREE_BUFFER;
307
308 usb_anchor_urb(urb, &data->intr_anchor);
309
310 err = usb_submit_urb(urb, mem_flags);
311 if (err < 0) {
312 BT_ERR("%s urb %p submission failed (%d)",
313 hdev->name, urb, -err);
314 usb_unanchor_urb(urb);
315 }
316
317 usb_free_urb(urb);
318
319 return err;
320}
321
322static void btusb_bulk_complete(struct urb *urb)
323{
324 struct hci_dev *hdev = urb->context;
325 struct btusb_data *data = hdev->driver_data;
326 int err;
327
328 BT_DBG("%s urb %p status %d count %d", hdev->name,
329 urb, urb->status, urb->actual_length);
330
331 if (!test_bit(HCI_RUNNING, &hdev->flags))
332 return;
333
334 if (urb->status == 0) {
335 hdev->stat.byte_rx += urb->actual_length;
336
337 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
338 urb->transfer_buffer,
339 urb->actual_length) < 0) {
340 BT_ERR("%s corrupted ACL packet", hdev->name);
341 hdev->stat.err_rx++;
342 }
343 }
344
345 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
346 return;
347
348 usb_anchor_urb(urb, &data->bulk_anchor);
349 usb_mark_last_busy(data->udev);
350
351 err = usb_submit_urb(urb, GFP_ATOMIC);
352 if (err < 0) {
353 /* -EPERM: urb is being killed;
354 * -ENODEV: device got disconnected */
355 if (err != -EPERM && err != -ENODEV)
356 BT_ERR("%s urb %p failed to resubmit (%d)",
357 hdev->name, urb, -err);
358 usb_unanchor_urb(urb);
359 }
360}
361
362static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
363{
364 struct btusb_data *data = hdev->driver_data;
365 struct urb *urb;
366 unsigned char *buf;
367 unsigned int pipe;
368 int err, size = HCI_MAX_FRAME_SIZE;
369
370 BT_DBG("%s", hdev->name);
371
372 if (!data->bulk_rx_ep)
373 return -ENODEV;
374
375 urb = usb_alloc_urb(0, mem_flags);
376 if (!urb)
377 return -ENOMEM;
378
379 buf = kmalloc(size, mem_flags);
380 if (!buf) {
381 usb_free_urb(urb);
382 return -ENOMEM;
383 }
384
385 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
386
387 usb_fill_bulk_urb(urb, data->udev, pipe,
388 buf, size, btusb_bulk_complete, hdev);
389
390 urb->transfer_flags |= URB_FREE_BUFFER;
391
392 usb_mark_last_busy(data->udev);
393 usb_anchor_urb(urb, &data->bulk_anchor);
394
395 err = usb_submit_urb(urb, mem_flags);
396 if (err < 0) {
397 BT_ERR("%s urb %p submission failed (%d)",
398 hdev->name, urb, -err);
399 usb_unanchor_urb(urb);
400 }
401
402 usb_free_urb(urb);
403
404 return err;
405}
406
407static void btusb_isoc_complete(struct urb *urb)
408{
409 struct hci_dev *hdev = urb->context;
410 struct btusb_data *data = hdev->driver_data;
411 int i, err;
412
413 BT_DBG("%s urb %p status %d count %d", hdev->name,
414 urb, urb->status, urb->actual_length);
415
416 if (!test_bit(HCI_RUNNING, &hdev->flags))
417 return;
418
419 if (urb->status == 0) {
420 for (i = 0; i < urb->number_of_packets; i++) {
421 unsigned int offset = urb->iso_frame_desc[i].offset;
422 unsigned int length = urb->iso_frame_desc[i].actual_length;
423
424 if (urb->iso_frame_desc[i].status)
425 continue;
426
427 hdev->stat.byte_rx += length;
428
429 if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
430 urb->transfer_buffer + offset,
431 length) < 0) {
432 BT_ERR("%s corrupted SCO packet", hdev->name);
433 hdev->stat.err_rx++;
434 }
435 }
436 }
437
438 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
439 return;
440
441 usb_anchor_urb(urb, &data->isoc_anchor);
442
443 err = usb_submit_urb(urb, GFP_ATOMIC);
444 if (err < 0) {
445 /* -EPERM: urb is being killed;
446 * -ENODEV: device got disconnected */
447 if (err != -EPERM && err != -ENODEV)
448 BT_ERR("%s urb %p failed to resubmit (%d)",
449 hdev->name, urb, -err);
450 usb_unanchor_urb(urb);
451 }
452}
453
454static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
455{
456 int i, offset = 0;
457
458 BT_DBG("len %d mtu %d", len, mtu);
459
460 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
461 i++, offset += mtu, len -= mtu) {
462 urb->iso_frame_desc[i].offset = offset;
463 urb->iso_frame_desc[i].length = mtu;
464 }
465
466 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
467 urb->iso_frame_desc[i].offset = offset;
468 urb->iso_frame_desc[i].length = len;
469 i++;
470 }
471
472 urb->number_of_packets = i;
473}
474
475static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
476{
477 struct btusb_data *data = hdev->driver_data;
478 struct urb *urb;
479 unsigned char *buf;
480 unsigned int pipe;
481 int err, size;
482
483 BT_DBG("%s", hdev->name);
484
485 if (!data->isoc_rx_ep)
486 return -ENODEV;
487
488 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
489 if (!urb)
490 return -ENOMEM;
491
492 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
493 BTUSB_MAX_ISOC_FRAMES;
494
495 buf = kmalloc(size, mem_flags);
496 if (!buf) {
497 usb_free_urb(urb);
498 return -ENOMEM;
499 }
500
501 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
502
503 urb->dev = data->udev;
504 urb->pipe = pipe;
505 urb->context = hdev;
506 urb->complete = btusb_isoc_complete;
507 urb->interval = data->isoc_rx_ep->bInterval;
508
509 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
510 urb->transfer_buffer = buf;
511 urb->transfer_buffer_length = size;
512
513 __fill_isoc_descriptor(urb, size,
514 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
515
516 usb_anchor_urb(urb, &data->isoc_anchor);
517
518 err = usb_submit_urb(urb, mem_flags);
519 if (err < 0) {
520 BT_ERR("%s urb %p submission failed (%d)",
521 hdev->name, urb, -err);
522 usb_unanchor_urb(urb);
523 }
524
525 usb_free_urb(urb);
526
527 return err;
528}
529
530static void btusb_tx_complete(struct urb *urb)
531{
532 struct sk_buff *skb = urb->context;
533 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
534 struct btusb_data *data = hdev->driver_data;
535
536 BT_DBG("%s urb %p status %d count %d", hdev->name,
537 urb, urb->status, urb->actual_length);
538
539 if (!test_bit(HCI_RUNNING, &hdev->flags))
540 goto done;
541
542 if (!urb->status)
543 hdev->stat.byte_tx += urb->transfer_buffer_length;
544 else
545 hdev->stat.err_tx++;
546
547done:
548 spin_lock(&data->txlock);
549 data->tx_in_flight--;
550 spin_unlock(&data->txlock);
551
552 kfree(urb->setup_packet);
553
554 kfree_skb(skb);
555}
556
557static void btusb_isoc_tx_complete(struct urb *urb)
558{
559 struct sk_buff *skb = urb->context;
560 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
561
562 BT_DBG("%s urb %p status %d count %d", hdev->name,
563 urb, urb->status, urb->actual_length);
564
565 if (!test_bit(HCI_RUNNING, &hdev->flags))
566 goto done;
567
568 if (!urb->status)
569 hdev->stat.byte_tx += urb->transfer_buffer_length;
570 else
571 hdev->stat.err_tx++;
572
573done:
574 kfree(urb->setup_packet);
575
576 kfree_skb(skb);
577}
578
579static int btusb_open(struct hci_dev *hdev)
580{
581 struct btusb_data *data = hdev->driver_data;
582 int err;
583
584 BT_DBG("%s", hdev->name);
585
586 err = usb_autopm_get_interface(data->intf);
587 if (err < 0)
588 return err;
589
590 data->intf->needs_remote_wakeup = 1;
591
592 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
593 goto done;
594
595 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
596 goto done;
597
598 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
599 if (err < 0)
600 goto failed;
601
602 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
603 if (err < 0) {
604 usb_kill_anchored_urbs(&data->intr_anchor);
605 goto failed;
606 }
607
608 set_bit(BTUSB_BULK_RUNNING, &data->flags);
609 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
610
611done:
612 usb_autopm_put_interface(data->intf);
613 return 0;
614
615failed:
616 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
617 clear_bit(HCI_RUNNING, &hdev->flags);
618 usb_autopm_put_interface(data->intf);
619 return err;
620}
621
622static void btusb_stop_traffic(struct btusb_data *data)
623{
624 usb_kill_anchored_urbs(&data->intr_anchor);
625 usb_kill_anchored_urbs(&data->bulk_anchor);
626 usb_kill_anchored_urbs(&data->isoc_anchor);
627}
628
629static int btusb_close(struct hci_dev *hdev)
630{
631 struct btusb_data *data = hdev->driver_data;
632 int err;
633
634 BT_DBG("%s", hdev->name);
635
636 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
637 return 0;
638
639 cancel_work_sync(&data->work);
640 cancel_work_sync(&data->waker);
641
642 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
643 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
644 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
645
646 btusb_stop_traffic(data);
647 err = usb_autopm_get_interface(data->intf);
648 if (err < 0)
649 goto failed;
650
651 data->intf->needs_remote_wakeup = 0;
652 usb_autopm_put_interface(data->intf);
653
654failed:
655 usb_scuttle_anchored_urbs(&data->deferred);
656 return 0;
657}
658
659static int btusb_flush(struct hci_dev *hdev)
660{
661 struct btusb_data *data = hdev->driver_data;
662
663 BT_DBG("%s", hdev->name);
664
665 usb_kill_anchored_urbs(&data->tx_anchor);
666
667 return 0;
668}
669
670static int btusb_send_frame(struct sk_buff *skb)
671{
672 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
673 struct btusb_data *data = hdev->driver_data;
674 struct usb_ctrlrequest *dr;
675 struct urb *urb;
676 unsigned int pipe;
677 int err;
678
679 BT_DBG("%s", hdev->name);
680
681 if (!test_bit(HCI_RUNNING, &hdev->flags))
682 return -EBUSY;
683
684 switch (bt_cb(skb)->pkt_type) {
685 case HCI_COMMAND_PKT:
686 urb = usb_alloc_urb(0, GFP_ATOMIC);
687 if (!urb)
688 return -ENOMEM;
689
690 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
691 if (!dr) {
692 usb_free_urb(urb);
693 return -ENOMEM;
694 }
695
696 dr->bRequestType = data->cmdreq_type;
697 dr->bRequest = 0;
698 dr->wIndex = 0;
699 dr->wValue = 0;
700 dr->wLength = __cpu_to_le16(skb->len);
701
702 pipe = usb_sndctrlpipe(data->udev, 0x00);
703
704 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
705 skb->data, skb->len, btusb_tx_complete, skb);
706
707 hdev->stat.cmd_tx++;
708 break;
709
710 case HCI_ACLDATA_PKT:
711 if (!data->bulk_tx_ep || (hdev->conn_hash.acl_num < 1 &&
712 hdev->conn_hash.le_num < 1))
713 return -ENODEV;
714
715 urb = usb_alloc_urb(0, GFP_ATOMIC);
716 if (!urb)
717 return -ENOMEM;
718
719 pipe = usb_sndbulkpipe(data->udev,
720 data->bulk_tx_ep->bEndpointAddress);
721
722 usb_fill_bulk_urb(urb, data->udev, pipe,
723 skb->data, skb->len, btusb_tx_complete, skb);
724
725 hdev->stat.acl_tx++;
726 break;
727
728 case HCI_SCODATA_PKT:
729 if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
730 return -ENODEV;
731
732 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
733 if (!urb)
734 return -ENOMEM;
735
736 pipe = usb_sndisocpipe(data->udev,
737 data->isoc_tx_ep->bEndpointAddress);
738
739 usb_fill_int_urb(urb, data->udev, pipe,
740 skb->data, skb->len, btusb_isoc_tx_complete,
741 skb, data->isoc_tx_ep->bInterval);
742
743 urb->transfer_flags = URB_ISO_ASAP;
744
745 __fill_isoc_descriptor(urb, skb->len,
746 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
747
748 hdev->stat.sco_tx++;
749 goto skip_waking;
750
751 default:
752 return -EILSEQ;
753 }
754
755 err = inc_tx(data);
756 if (err) {
757 usb_anchor_urb(urb, &data->deferred);
758 schedule_work(&data->waker);
759 err = 0;
760 goto done;
761 }
762
763skip_waking:
764 usb_anchor_urb(urb, &data->tx_anchor);
765
766 err = usb_submit_urb(urb, GFP_ATOMIC);
767 if (err < 0) {
768 BT_ERR("%s urb %p submission failed", hdev->name, urb);
769 kfree(urb->setup_packet);
770 usb_unanchor_urb(urb);
771 } else {
772 usb_mark_last_busy(data->udev);
773 }
774
775 usb_free_urb(urb);
776
777done:
778 return err;
779}
780
781static void btusb_destruct(struct hci_dev *hdev)
782{
783 struct btusb_data *data = hdev->driver_data;
784
785 BT_DBG("%s", hdev->name);
786
787 kfree(data);
788}
789
790static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
791{
792 struct btusb_data *data = hdev->driver_data;
793
794 BT_DBG("%s evt %d", hdev->name, evt);
795
796 if (hdev->conn_hash.sco_num != data->sco_num) {
797 data->sco_num = hdev->conn_hash.sco_num;
798 schedule_work(&data->work);
799 }
800}
801
802static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
803{
804 struct btusb_data *data = hdev->driver_data;
805 struct usb_interface *intf = data->isoc;
806 struct usb_endpoint_descriptor *ep_desc;
807 int i, err;
808
809 if (!data->isoc)
810 return -ENODEV;
811
812 err = usb_set_interface(data->udev, 1, altsetting);
813 if (err < 0) {
814 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
815 return err;
816 }
817
818 data->isoc_altsetting = altsetting;
819
820 data->isoc_tx_ep = NULL;
821 data->isoc_rx_ep = NULL;
822
823 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
824 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
825
826 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
827 data->isoc_tx_ep = ep_desc;
828 continue;
829 }
830
831 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
832 data->isoc_rx_ep = ep_desc;
833 continue;
834 }
835 }
836
837 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
838 BT_ERR("%s invalid SCO descriptors", hdev->name);
839 return -ENODEV;
840 }
841
842 return 0;
843}
844
845static void btusb_work(struct work_struct *work)
846{
847 struct btusb_data *data = container_of(work, struct btusb_data, work);
848 struct hci_dev *hdev = data->hdev;
849 int err;
850
851 if (hdev->conn_hash.sco_num > 0) {
852 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
853 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
854 if (err < 0) {
855 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
856 usb_kill_anchored_urbs(&data->isoc_anchor);
857 return;
858 }
859
860 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
861 }
862 if (data->isoc_altsetting != 2) {
863 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
864 usb_kill_anchored_urbs(&data->isoc_anchor);
865
866 if (__set_isoc_interface(hdev, 2) < 0)
867 return;
868 }
869
870 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
871 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
872 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
873 else
874 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
875 }
876 } else {
877 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
878 usb_kill_anchored_urbs(&data->isoc_anchor);
879
880 __set_isoc_interface(hdev, 0);
881 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
882 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
883 }
884}
885
886static void btusb_waker(struct work_struct *work)
887{
888 struct btusb_data *data = container_of(work, struct btusb_data, waker);
889 int err;
890
891 err = usb_autopm_get_interface(data->intf);
892 if (err < 0)
893 return;
894
895 usb_autopm_put_interface(data->intf);
896}
897
898static int btusb_probe(struct usb_interface *intf,
899 const struct usb_device_id *id)
900{
901 struct usb_endpoint_descriptor *ep_desc;
902 struct btusb_data *data;
903 struct hci_dev *hdev;
904 int i, err;
905
906 BT_DBG("intf %p id %p", intf, id);
907
908 /* interface numbers are hardcoded in the spec */
909 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
910 return -ENODEV;
911
912 if (!id->driver_info) {
913 const struct usb_device_id *match;
914 match = usb_match_id(intf, blacklist_table);
915 if (match)
916 id = match;
917 }
918
919 if (id->driver_info == BTUSB_IGNORE)
920 return -ENODEV;
921
922 if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
923 return -ENODEV;
924
925 if (ignore_csr && id->driver_info & BTUSB_CSR)
926 return -ENODEV;
927
928 if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
929 return -ENODEV;
930
931 if (id->driver_info & BTUSB_ATH3012) {
932 struct usb_device *udev = interface_to_usbdev(intf);
933
934 /* Old firmware would otherwise let ath3k driver load
935 * patch and sysconfig files */
936 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
937 return -ENODEV;
938 }
939
940 data = kzalloc(sizeof(*data), GFP_KERNEL);
941 if (!data)
942 return -ENOMEM;
943
944 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
945 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
946
947 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
948 data->intr_ep = ep_desc;
949 continue;
950 }
951
952 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
953 data->bulk_tx_ep = ep_desc;
954 continue;
955 }
956
957 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
958 data->bulk_rx_ep = ep_desc;
959 continue;
960 }
961 }
962
963 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {
964 kfree(data);
965 return -ENODEV;
966 }
967
968 data->cmdreq_type = USB_TYPE_CLASS;
969
970 data->udev = interface_to_usbdev(intf);
971 data->intf = intf;
972
973 spin_lock_init(&data->lock);
974
975 INIT_WORK(&data->work, btusb_work);
976 INIT_WORK(&data->waker, btusb_waker);
977 spin_lock_init(&data->txlock);
978
979 init_usb_anchor(&data->tx_anchor);
980 init_usb_anchor(&data->intr_anchor);
981 init_usb_anchor(&data->bulk_anchor);
982 init_usb_anchor(&data->isoc_anchor);
983 init_usb_anchor(&data->deferred);
984
985 hdev = hci_alloc_dev();
986 if (!hdev) {
987 kfree(data);
988 return -ENOMEM;
989 }
990
991 hdev->bus = HCI_USB;
992 hdev->driver_data = data;
993
994 data->hdev = hdev;
995
996 SET_HCIDEV_DEV(hdev, &intf->dev);
997
998 hdev->open = btusb_open;
999 hdev->close = btusb_close;
1000 hdev->flush = btusb_flush;
1001 hdev->send = btusb_send_frame;
1002 hdev->destruct = btusb_destruct;
1003 hdev->notify = btusb_notify;
1004
1005 hdev->owner = THIS_MODULE;
1006
1007 /* Interface numbers are hardcoded in the specification */
1008 data->isoc = usb_ifnum_to_if(data->udev, 1);
1009
1010 if (!reset)
1011 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1012
1013 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1014 if (!disable_scofix)
1015 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1016 }
1017
1018 if (id->driver_info & BTUSB_BROKEN_ISOC)
1019 data->isoc = NULL;
1020
1021 if (id->driver_info & BTUSB_DIGIANSWER) {
1022 data->cmdreq_type = USB_TYPE_VENDOR;
1023 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1024 }
1025
1026 if (id->driver_info & BTUSB_CSR) {
1027 struct usb_device *udev = data->udev;
1028
1029 /* Old firmware would otherwise execute USB reset */
1030 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
1031 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1032 }
1033
1034 if (id->driver_info & BTUSB_SNIFFER) {
1035 struct usb_device *udev = data->udev;
1036
1037 /* New sniffer firmware has crippled HCI interface */
1038 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1039 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1040
1041 data->isoc = NULL;
1042 }
1043
1044 if (id->driver_info & BTUSB_BCM92035) {
1045 unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 };
1046 struct sk_buff *skb;
1047
1048 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
1049 if (skb) {
1050 memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
1051 skb_queue_tail(&hdev->driver_init, skb);
1052 }
1053 }
1054
1055 if (data->isoc) {
1056 err = usb_driver_claim_interface(&btusb_driver,
1057 data->isoc, data);
1058 if (err < 0) {
1059 hci_free_dev(hdev);
1060 kfree(data);
1061 return err;
1062 }
1063 }
1064
1065 err = hci_register_dev(hdev);
1066 if (err < 0) {
1067 hci_free_dev(hdev);
1068 kfree(data);
1069 return err;
1070 }
1071
1072 usb_set_intfdata(intf, data);
1073
1074 return 0;
1075}
1076
1077static void btusb_disconnect(struct usb_interface *intf)
1078{
1079 struct btusb_data *data = usb_get_intfdata(intf);
1080 struct hci_dev *hdev;
1081
1082 BT_DBG("intf %p", intf);
1083
1084 if (!data)
1085 return;
1086
1087 hdev = data->hdev;
1088
1089 __hci_dev_hold(hdev);
1090
1091 usb_set_intfdata(data->intf, NULL);
1092
1093 if (data->isoc)
1094 usb_set_intfdata(data->isoc, NULL);
1095
1096 hci_unregister_dev(hdev);
1097
1098 if (intf == data->isoc)
1099 usb_driver_release_interface(&btusb_driver, data->intf);
1100 else if (data->isoc)
1101 usb_driver_release_interface(&btusb_driver, data->isoc);
1102
1103 __hci_dev_put(hdev);
1104
1105 hci_free_dev(hdev);
1106}
1107
1108#ifdef CONFIG_PM
1109static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1110{
1111 struct btusb_data *data = usb_get_intfdata(intf);
1112
1113 BT_DBG("intf %p", intf);
1114
1115 if (data->suspend_count++)
1116 return 0;
1117
1118 spin_lock_irq(&data->txlock);
1119 if (!((message.event & PM_EVENT_AUTO) && data->tx_in_flight)) {
1120 set_bit(BTUSB_SUSPENDING, &data->flags);
1121 spin_unlock_irq(&data->txlock);
1122 } else {
1123 spin_unlock_irq(&data->txlock);
1124 data->suspend_count--;
1125 return -EBUSY;
1126 }
1127
1128 cancel_work_sync(&data->work);
1129
1130 btusb_stop_traffic(data);
1131 usb_kill_anchored_urbs(&data->tx_anchor);
1132
1133 return 0;
1134}
1135
1136static void play_deferred(struct btusb_data *data)
1137{
1138 struct urb *urb;
1139 int err;
1140
1141 while ((urb = usb_get_from_anchor(&data->deferred))) {
1142 err = usb_submit_urb(urb, GFP_ATOMIC);
1143 if (err < 0)
1144 break;
1145
1146 data->tx_in_flight++;
1147 }
1148 usb_scuttle_anchored_urbs(&data->deferred);
1149}
1150
1151static int btusb_resume(struct usb_interface *intf)
1152{
1153 struct btusb_data *data = usb_get_intfdata(intf);
1154 struct hci_dev *hdev = data->hdev;
1155 int err = 0;
1156
1157 BT_DBG("intf %p", intf);
1158
1159 if (--data->suspend_count)
1160 return 0;
1161
1162 if (!test_bit(HCI_RUNNING, &hdev->flags))
1163 goto done;
1164
1165 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1166 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1167 if (err < 0) {
1168 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1169 goto failed;
1170 }
1171 }
1172
1173 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1174 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1175 if (err < 0) {
1176 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1177 goto failed;
1178 }
1179
1180 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1181 }
1182
1183 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1184 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1185 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1186 else
1187 btusb_submit_isoc_urb(hdev, GFP_NOIO);
1188 }
1189
1190 spin_lock_irq(&data->txlock);
1191 play_deferred(data);
1192 clear_bit(BTUSB_SUSPENDING, &data->flags);
1193 spin_unlock_irq(&data->txlock);
1194 schedule_work(&data->work);
1195
1196 return 0;
1197
1198failed:
1199 usb_scuttle_anchored_urbs(&data->deferred);
1200done:
1201 spin_lock_irq(&data->txlock);
1202 clear_bit(BTUSB_SUSPENDING, &data->flags);
1203 spin_unlock_irq(&data->txlock);
1204
1205 return err;
1206}
1207#endif
1208
1209static struct usb_driver btusb_driver = {
1210 .name = "btusb",
1211 .probe = btusb_probe,
1212 .disconnect = btusb_disconnect,
1213#ifdef CONFIG_PM
1214 .suspend = btusb_suspend,
1215 .resume = btusb_resume,
1216#endif
1217 .id_table = btusb_table,
1218 .supports_autosuspend = 1,
1219};
1220
1221static int __init btusb_init(void)
1222{
1223 BT_INFO("Generic Bluetooth USB driver ver %s", VERSION);
1224
1225 return usb_register(&btusb_driver);
1226}
1227
1228static void __exit btusb_exit(void)
1229{
1230 usb_deregister(&btusb_driver);
1231}
1232
1233module_init(btusb_init);
1234module_exit(btusb_exit);
1235
1236module_param(ignore_dga, bool, 0644);
1237MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1238
1239module_param(ignore_csr, bool, 0644);
1240MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1241
1242module_param(ignore_sniffer, bool, 0644);
1243MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1244
1245module_param(disable_scofix, bool, 0644);
1246MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1247
1248module_param(force_scofix, bool, 0644);
1249MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1250
1251module_param(reset, bool, 0644);
1252MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1253
1254MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1255MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1256MODULE_VERSION(VERSION);
1257MODULE_LICENSE("GPL");
1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 *
4 * Generic Bluetooth USB driver
5 *
6 * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org>
7 */
8
9#include <linux/dmi.h>
10#include <linux/module.h>
11#include <linux/usb.h>
12#include <linux/usb/quirks.h>
13#include <linux/firmware.h>
14#include <linux/iopoll.h>
15#include <linux/of_device.h>
16#include <linux/of_irq.h>
17#include <linux/suspend.h>
18#include <linux/gpio/consumer.h>
19#include <asm/unaligned.h>
20
21#include <net/bluetooth/bluetooth.h>
22#include <net/bluetooth/hci_core.h>
23
24#include "btintel.h"
25#include "btbcm.h"
26#include "btrtl.h"
27
28#define VERSION "0.8"
29
30static bool disable_scofix;
31static bool force_scofix;
32static bool enable_autosuspend = IS_ENABLED(CONFIG_BT_HCIBTUSB_AUTOSUSPEND);
33
34static bool reset = true;
35
36static struct usb_driver btusb_driver;
37
38#define BTUSB_IGNORE 0x01
39#define BTUSB_DIGIANSWER 0x02
40#define BTUSB_CSR 0x04
41#define BTUSB_SNIFFER 0x08
42#define BTUSB_BCM92035 0x10
43#define BTUSB_BROKEN_ISOC 0x20
44#define BTUSB_WRONG_SCO_MTU 0x40
45#define BTUSB_ATH3012 0x80
46#define BTUSB_INTEL 0x100
47#define BTUSB_INTEL_BOOT 0x200
48#define BTUSB_BCM_PATCHRAM 0x400
49#define BTUSB_MARVELL 0x800
50#define BTUSB_SWAVE 0x1000
51#define BTUSB_INTEL_NEW 0x2000
52#define BTUSB_AMP 0x4000
53#define BTUSB_QCA_ROME 0x8000
54#define BTUSB_BCM_APPLE 0x10000
55#define BTUSB_REALTEK 0x20000
56#define BTUSB_BCM2045 0x40000
57#define BTUSB_IFNUM_2 0x80000
58#define BTUSB_CW6622 0x100000
59#define BTUSB_MEDIATEK 0x200000
60#define BTUSB_WIDEBAND_SPEECH 0x400000
61#define BTUSB_VALID_LE_STATES 0x800000
62#define BTUSB_QCA_WCN6855 0x1000000
63#define BTUSB_INTEL_NEWGEN 0x2000000
64
65static const struct usb_device_id btusb_table[] = {
66 /* Generic Bluetooth USB device */
67 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
68
69 /* Generic Bluetooth AMP device */
70 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP },
71
72 /* Generic Bluetooth USB interface */
73 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) },
74
75 /* Apple-specific (Broadcom) devices */
76 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01),
77 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 },
78
79 /* MediaTek MT76x0E */
80 { USB_DEVICE(0x0e8d, 0x763f) },
81
82 /* Broadcom SoftSailing reporting vendor specific */
83 { USB_DEVICE(0x0a5c, 0x21e1) },
84
85 /* Apple MacBookPro 7,1 */
86 { USB_DEVICE(0x05ac, 0x8213) },
87
88 /* Apple iMac11,1 */
89 { USB_DEVICE(0x05ac, 0x8215) },
90
91 /* Apple MacBookPro6,2 */
92 { USB_DEVICE(0x05ac, 0x8218) },
93
94 /* Apple MacBookAir3,1, MacBookAir3,2 */
95 { USB_DEVICE(0x05ac, 0x821b) },
96
97 /* Apple MacBookAir4,1 */
98 { USB_DEVICE(0x05ac, 0x821f) },
99
100 /* Apple MacBookPro8,2 */
101 { USB_DEVICE(0x05ac, 0x821a) },
102
103 /* Apple MacMini5,1 */
104 { USB_DEVICE(0x05ac, 0x8281) },
105
106 /* AVM BlueFRITZ! USB v2.0 */
107 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE },
108
109 /* Bluetooth Ultraport Module from IBM */
110 { USB_DEVICE(0x04bf, 0x030a) },
111
112 /* ALPS Modules with non-standard id */
113 { USB_DEVICE(0x044e, 0x3001) },
114 { USB_DEVICE(0x044e, 0x3002) },
115
116 /* Ericsson with non-standard id */
117 { USB_DEVICE(0x0bdb, 0x1002) },
118
119 /* Canyon CN-BTU1 with HID interfaces */
120 { USB_DEVICE(0x0c10, 0x0000) },
121
122 /* Broadcom BCM20702A0 */
123 { USB_DEVICE(0x413c, 0x8197) },
124
125 /* Broadcom BCM20702B0 (Dynex/Insignia) */
126 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM },
127
128 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */
129 { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01),
130 .driver_info = BTUSB_BCM_PATCHRAM },
131
132 /* Broadcom BCM920703 (HTC Vive) */
133 { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01),
134 .driver_info = BTUSB_BCM_PATCHRAM },
135
136 /* Foxconn - Hon Hai */
137 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01),
138 .driver_info = BTUSB_BCM_PATCHRAM },
139
140 /* Lite-On Technology - Broadcom based */
141 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01),
142 .driver_info = BTUSB_BCM_PATCHRAM },
143
144 /* Broadcom devices with vendor specific id */
145 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
146 .driver_info = BTUSB_BCM_PATCHRAM },
147
148 /* ASUSTek Computer - Broadcom based */
149 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01),
150 .driver_info = BTUSB_BCM_PATCHRAM },
151
152 /* Belkin F8065bf - Broadcom based */
153 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01),
154 .driver_info = BTUSB_BCM_PATCHRAM },
155
156 /* IMC Networks - Broadcom based */
157 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01),
158 .driver_info = BTUSB_BCM_PATCHRAM },
159
160 /* Dell Computer - Broadcom based */
161 { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01),
162 .driver_info = BTUSB_BCM_PATCHRAM },
163
164 /* Toshiba Corp - Broadcom based */
165 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01),
166 .driver_info = BTUSB_BCM_PATCHRAM },
167
168 /* Intel Bluetooth USB Bootloader (RAM module) */
169 { USB_DEVICE(0x8087, 0x0a5a),
170 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
171
172 { } /* Terminating entry */
173};
174
175MODULE_DEVICE_TABLE(usb, btusb_table);
176
177static const struct usb_device_id blacklist_table[] = {
178 /* CSR BlueCore devices */
179 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
180
181 /* Broadcom BCM2033 without firmware */
182 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
183
184 /* Broadcom BCM2045 devices */
185 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 },
186
187 /* Atheros 3011 with sflash firmware */
188 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
189 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
190 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE },
191 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
192 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
193 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
194 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
195
196 /* Atheros AR9285 Malbec with sflash firmware */
197 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
198
199 /* Atheros 3012 with sflash firmware */
200 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
201 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
202 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
203 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
204 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
205 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
206 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
207 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
208 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
209 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
210 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
211 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
212 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
213 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
214 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
215 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
216 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
217 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
218 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
219 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
220 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
221 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
222 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
223 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
224 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
225 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
226 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
227 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
228 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
229 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
230 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
231 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
232 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
233 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 },
234 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
235 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
236 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
237 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
238 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
239 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
240 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
241 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
242 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
243 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
244 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
245 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
246 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
247 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
248 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 },
249 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 },
250
251 /* Atheros AR5BBU12 with sflash firmware */
252 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
253
254 /* Atheros AR5BBU12 with sflash firmware */
255 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
256 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
257
258 /* QCA ROME chipset */
259 { USB_DEVICE(0x0cf3, 0x535b), .driver_info = BTUSB_QCA_ROME |
260 BTUSB_WIDEBAND_SPEECH },
261 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME |
262 BTUSB_WIDEBAND_SPEECH },
263 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME |
264 BTUSB_WIDEBAND_SPEECH },
265 { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME |
266 BTUSB_WIDEBAND_SPEECH },
267 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME |
268 BTUSB_WIDEBAND_SPEECH },
269 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME |
270 BTUSB_WIDEBAND_SPEECH },
271 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME |
272 BTUSB_WIDEBAND_SPEECH },
273 { USB_DEVICE(0x0cf3, 0xe500), .driver_info = BTUSB_QCA_ROME |
274 BTUSB_WIDEBAND_SPEECH },
275 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME |
276 BTUSB_WIDEBAND_SPEECH },
277 { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME |
278 BTUSB_WIDEBAND_SPEECH },
279 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME |
280 BTUSB_WIDEBAND_SPEECH },
281 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME |
282 BTUSB_WIDEBAND_SPEECH },
283 { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME |
284 BTUSB_WIDEBAND_SPEECH },
285 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME |
286 BTUSB_WIDEBAND_SPEECH },
287 { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME |
288 BTUSB_WIDEBAND_SPEECH },
289 { USB_DEVICE(0x04ca, 0x3021), .driver_info = BTUSB_QCA_ROME |
290 BTUSB_WIDEBAND_SPEECH },
291 { USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME |
292 BTUSB_WIDEBAND_SPEECH },
293 { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME |
294 BTUSB_WIDEBAND_SPEECH },
295 { USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME |
296 BTUSB_WIDEBAND_SPEECH },
297
298 /* QCA WCN6855 chipset */
299 { USB_DEVICE(0x0cf3, 0xe600), .driver_info = BTUSB_QCA_WCN6855 |
300 BTUSB_WIDEBAND_SPEECH },
301
302 /* Broadcom BCM2035 */
303 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
304 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
305 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
306
307 /* Broadcom BCM2045 */
308 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
309 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
310
311 /* IBM/Lenovo ThinkPad with Broadcom chip */
312 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
313 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
314
315 /* HP laptop with Broadcom chip */
316 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
317
318 /* Dell laptop with Broadcom chip */
319 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
320
321 /* Dell Wireless 370 and 410 devices */
322 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
323 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
324
325 /* Belkin F8T012 and F8T013 devices */
326 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
327 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
328
329 /* Asus WL-BTD202 device */
330 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
331
332 /* Kensington Bluetooth USB adapter */
333 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
334
335 /* RTX Telecom based adapters with buggy SCO support */
336 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
337 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
338
339 /* CONWISE Technology based adapters with buggy SCO support */
340 { USB_DEVICE(0x0e5e, 0x6622),
341 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622},
342
343 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
344 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
345
346 /* Digianswer devices */
347 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
348 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
349
350 /* CSR BlueCore Bluetooth Sniffer */
351 { USB_DEVICE(0x0a12, 0x0002),
352 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
353
354 /* Frontline ComProbe Bluetooth Sniffer */
355 { USB_DEVICE(0x16d3, 0x0002),
356 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
357
358 /* Marvell Bluetooth devices */
359 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
360 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
361 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL },
362
363 /* Intel Bluetooth devices */
364 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_NEW |
365 BTUSB_WIDEBAND_SPEECH |
366 BTUSB_VALID_LE_STATES },
367 { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_NEW |
368 BTUSB_WIDEBAND_SPEECH },
369 { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_NEW |
370 BTUSB_WIDEBAND_SPEECH },
371 { USB_DEVICE(0x8087, 0x0032), .driver_info = BTUSB_INTEL_NEWGEN |
372 BTUSB_WIDEBAND_SPEECH},
373 { USB_DEVICE(0x8087, 0x0033), .driver_info = BTUSB_INTEL_NEWGEN |
374 BTUSB_WIDEBAND_SPEECH},
375 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
376 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
377 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL },
378 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_NEW |
379 BTUSB_WIDEBAND_SPEECH },
380 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL |
381 BTUSB_WIDEBAND_SPEECH },
382 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_NEW |
383 BTUSB_WIDEBAND_SPEECH |
384 BTUSB_VALID_LE_STATES },
385
386 /* Other Intel Bluetooth devices */
387 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
388 .driver_info = BTUSB_IGNORE },
389
390 /* Realtek 8822CE Bluetooth devices */
391 { USB_DEVICE(0x0bda, 0xb00c), .driver_info = BTUSB_REALTEK |
392 BTUSB_WIDEBAND_SPEECH },
393 { USB_DEVICE(0x0bda, 0xc822), .driver_info = BTUSB_REALTEK |
394 BTUSB_WIDEBAND_SPEECH },
395
396 /* Realtek 8852AE Bluetooth devices */
397 { USB_DEVICE(0x0bda, 0xc852), .driver_info = BTUSB_REALTEK |
398 BTUSB_WIDEBAND_SPEECH },
399
400 /* Realtek Bluetooth devices */
401 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
402 .driver_info = BTUSB_REALTEK },
403
404 /* MediaTek Bluetooth devices */
405 { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01),
406 .driver_info = BTUSB_MEDIATEK |
407 BTUSB_WIDEBAND_SPEECH |
408 BTUSB_VALID_LE_STATES },
409
410 /* Additional MediaTek MT7615E Bluetooth devices */
411 { USB_DEVICE(0x13d3, 0x3560), .driver_info = BTUSB_MEDIATEK},
412
413 /* Additional MediaTek MT7921 Bluetooth devices */
414 { USB_DEVICE(0x04ca, 0x3802), .driver_info = BTUSB_MEDIATEK |
415 BTUSB_WIDEBAND_SPEECH |
416 BTUSB_VALID_LE_STATES },
417
418 /* Additional Realtek 8723AE Bluetooth devices */
419 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
420 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
421
422 /* Additional Realtek 8723BE Bluetooth devices */
423 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
424 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
425 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
426 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
427 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
428 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK },
429
430 /* Additional Realtek 8723BU Bluetooth devices */
431 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK },
432
433 /* Additional Realtek 8723DE Bluetooth devices */
434 { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK },
435 { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK },
436
437 /* Additional Realtek 8761BU Bluetooth devices */
438 { USB_DEVICE(0x0b05, 0x190e), .driver_info = BTUSB_REALTEK |
439 BTUSB_WIDEBAND_SPEECH },
440
441 /* Additional Realtek 8821AE Bluetooth devices */
442 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
443 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
444 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
445 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
446 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
447
448 /* Additional Realtek 8822BE Bluetooth devices */
449 { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK },
450 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK },
451
452 /* Additional Realtek 8822CE Bluetooth devices */
453 { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK |
454 BTUSB_WIDEBAND_SPEECH },
455 /* Bluetooth component of Realtek 8852AE device */
456 { USB_DEVICE(0x04ca, 0x4006), .driver_info = BTUSB_REALTEK |
457 BTUSB_WIDEBAND_SPEECH },
458
459 { USB_DEVICE(0x04c5, 0x161f), .driver_info = BTUSB_REALTEK |
460 BTUSB_WIDEBAND_SPEECH },
461 { USB_DEVICE(0x0b05, 0x18ef), .driver_info = BTUSB_REALTEK |
462 BTUSB_WIDEBAND_SPEECH },
463 { USB_DEVICE(0x13d3, 0x3548), .driver_info = BTUSB_REALTEK |
464 BTUSB_WIDEBAND_SPEECH },
465 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
466 BTUSB_WIDEBAND_SPEECH },
467 { USB_DEVICE(0x13d3, 0x3553), .driver_info = BTUSB_REALTEK |
468 BTUSB_WIDEBAND_SPEECH },
469 { USB_DEVICE(0x13d3, 0x3555), .driver_info = BTUSB_REALTEK |
470 BTUSB_WIDEBAND_SPEECH },
471 { USB_DEVICE(0x2ff8, 0x3051), .driver_info = BTUSB_REALTEK |
472 BTUSB_WIDEBAND_SPEECH },
473 { USB_DEVICE(0x1358, 0xc123), .driver_info = BTUSB_REALTEK |
474 BTUSB_WIDEBAND_SPEECH },
475 { USB_DEVICE(0x0bda, 0xc123), .driver_info = BTUSB_REALTEK |
476 BTUSB_WIDEBAND_SPEECH },
477 { USB_DEVICE(0x0cb5, 0xc547), .driver_info = BTUSB_REALTEK |
478 BTUSB_WIDEBAND_SPEECH },
479
480 /* Silicon Wave based devices */
481 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
482
483 { } /* Terminating entry */
484};
485
486/* The Bluetooth USB module build into some devices needs to be reset on resume,
487 * this is a problem with the platform (likely shutting off all power) not with
488 * the module itself. So we use a DMI list to match known broken platforms.
489 */
490static const struct dmi_system_id btusb_needs_reset_resume_table[] = {
491 {
492 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */
493 .matches = {
494 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
495 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"),
496 },
497 },
498 {
499 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */
500 .matches = {
501 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
502 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"),
503 },
504 },
505 {
506 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */
507 .matches = {
508 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
509 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"),
510 },
511 },
512 {}
513};
514
515#define BTUSB_MAX_ISOC_FRAMES 10
516
517#define BTUSB_INTR_RUNNING 0
518#define BTUSB_BULK_RUNNING 1
519#define BTUSB_ISOC_RUNNING 2
520#define BTUSB_SUSPENDING 3
521#define BTUSB_DID_ISO_RESUME 4
522#define BTUSB_BOOTLOADER 5
523#define BTUSB_DOWNLOADING 6
524#define BTUSB_FIRMWARE_LOADED 7
525#define BTUSB_FIRMWARE_FAILED 8
526#define BTUSB_BOOTING 9
527#define BTUSB_DIAG_RUNNING 10
528#define BTUSB_OOB_WAKE_ENABLED 11
529#define BTUSB_HW_RESET_ACTIVE 12
530#define BTUSB_TX_WAIT_VND_EVT 13
531#define BTUSB_WAKEUP_DISABLE 14
532#define BTUSB_USE_ALT3_FOR_WBS 15
533
534struct btusb_data {
535 struct hci_dev *hdev;
536 struct usb_device *udev;
537 struct usb_interface *intf;
538 struct usb_interface *isoc;
539 struct usb_interface *diag;
540 unsigned isoc_ifnum;
541
542 unsigned long flags;
543
544 struct work_struct work;
545 struct work_struct waker;
546
547 struct usb_anchor deferred;
548 struct usb_anchor tx_anchor;
549 int tx_in_flight;
550 spinlock_t txlock;
551
552 struct usb_anchor intr_anchor;
553 struct usb_anchor bulk_anchor;
554 struct usb_anchor isoc_anchor;
555 struct usb_anchor diag_anchor;
556 struct usb_anchor ctrl_anchor;
557 spinlock_t rxlock;
558
559 struct sk_buff *evt_skb;
560 struct sk_buff *acl_skb;
561 struct sk_buff *sco_skb;
562
563 struct usb_endpoint_descriptor *intr_ep;
564 struct usb_endpoint_descriptor *bulk_tx_ep;
565 struct usb_endpoint_descriptor *bulk_rx_ep;
566 struct usb_endpoint_descriptor *isoc_tx_ep;
567 struct usb_endpoint_descriptor *isoc_rx_ep;
568 struct usb_endpoint_descriptor *diag_tx_ep;
569 struct usb_endpoint_descriptor *diag_rx_ep;
570
571 struct gpio_desc *reset_gpio;
572
573 __u8 cmdreq_type;
574 __u8 cmdreq;
575
576 unsigned int sco_num;
577 unsigned int air_mode;
578 bool usb_alt6_packet_flow;
579 int isoc_altsetting;
580 int suspend_count;
581
582 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
583 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
584
585 int (*setup_on_usb)(struct hci_dev *hdev);
586
587 int oob_wake_irq; /* irq for out-of-band wake-on-bt */
588 unsigned cmd_timeout_cnt;
589};
590
591static void btusb_intel_cmd_timeout(struct hci_dev *hdev)
592{
593 struct btusb_data *data = hci_get_drvdata(hdev);
594 struct gpio_desc *reset_gpio = data->reset_gpio;
595
596 if (++data->cmd_timeout_cnt < 5)
597 return;
598
599 if (!reset_gpio) {
600 bt_dev_err(hdev, "No way to reset. Ignoring and continuing");
601 return;
602 }
603
604 /*
605 * Toggle the hard reset line if the platform provides one. The reset
606 * is going to yank the device off the USB and then replug. So doing
607 * once is enough. The cleanup is handled correctly on the way out
608 * (standard USB disconnect), and the new device is detected cleanly
609 * and bound to the driver again like it should be.
610 */
611 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
612 bt_dev_err(hdev, "last reset failed? Not resetting again");
613 return;
614 }
615
616 bt_dev_err(hdev, "Initiating HW reset via gpio");
617 gpiod_set_value_cansleep(reset_gpio, 1);
618 msleep(100);
619 gpiod_set_value_cansleep(reset_gpio, 0);
620}
621
622static void btusb_rtl_cmd_timeout(struct hci_dev *hdev)
623{
624 struct btusb_data *data = hci_get_drvdata(hdev);
625 struct gpio_desc *reset_gpio = data->reset_gpio;
626
627 if (++data->cmd_timeout_cnt < 5)
628 return;
629
630 if (!reset_gpio) {
631 bt_dev_err(hdev, "No gpio to reset Realtek device, ignoring");
632 return;
633 }
634
635 /* Toggle the hard reset line. The Realtek device is going to
636 * yank itself off the USB and then replug. The cleanup is handled
637 * correctly on the way out (standard USB disconnect), and the new
638 * device is detected cleanly and bound to the driver again like
639 * it should be.
640 */
641 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
642 bt_dev_err(hdev, "last reset failed? Not resetting again");
643 return;
644 }
645
646 bt_dev_err(hdev, "Reset Realtek device via gpio");
647 gpiod_set_value_cansleep(reset_gpio, 1);
648 msleep(200);
649 gpiod_set_value_cansleep(reset_gpio, 0);
650}
651
652static void btusb_qca_cmd_timeout(struct hci_dev *hdev)
653{
654 struct btusb_data *data = hci_get_drvdata(hdev);
655 int err;
656
657 if (++data->cmd_timeout_cnt < 5)
658 return;
659
660 bt_dev_err(hdev, "Multiple cmd timeouts seen. Resetting usb device.");
661 /* This is not an unbalanced PM reference since the device will reset */
662 err = usb_autopm_get_interface(data->intf);
663 if (!err)
664 usb_queue_reset_device(data->intf);
665 else
666 bt_dev_err(hdev, "Failed usb_autopm_get_interface with %d", err);
667}
668
669static inline void btusb_free_frags(struct btusb_data *data)
670{
671 unsigned long flags;
672
673 spin_lock_irqsave(&data->rxlock, flags);
674
675 kfree_skb(data->evt_skb);
676 data->evt_skb = NULL;
677
678 kfree_skb(data->acl_skb);
679 data->acl_skb = NULL;
680
681 kfree_skb(data->sco_skb);
682 data->sco_skb = NULL;
683
684 spin_unlock_irqrestore(&data->rxlock, flags);
685}
686
687static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
688{
689 struct sk_buff *skb;
690 unsigned long flags;
691 int err = 0;
692
693 spin_lock_irqsave(&data->rxlock, flags);
694 skb = data->evt_skb;
695
696 while (count) {
697 int len;
698
699 if (!skb) {
700 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
701 if (!skb) {
702 err = -ENOMEM;
703 break;
704 }
705
706 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
707 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
708 }
709
710 len = min_t(uint, hci_skb_expect(skb), count);
711 skb_put_data(skb, buffer, len);
712
713 count -= len;
714 buffer += len;
715 hci_skb_expect(skb) -= len;
716
717 if (skb->len == HCI_EVENT_HDR_SIZE) {
718 /* Complete event header */
719 hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
720
721 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
722 kfree_skb(skb);
723 skb = NULL;
724
725 err = -EILSEQ;
726 break;
727 }
728 }
729
730 if (!hci_skb_expect(skb)) {
731 /* Complete frame */
732 data->recv_event(data->hdev, skb);
733 skb = NULL;
734 }
735 }
736
737 data->evt_skb = skb;
738 spin_unlock_irqrestore(&data->rxlock, flags);
739
740 return err;
741}
742
743static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
744{
745 struct sk_buff *skb;
746 unsigned long flags;
747 int err = 0;
748
749 spin_lock_irqsave(&data->rxlock, flags);
750 skb = data->acl_skb;
751
752 while (count) {
753 int len;
754
755 if (!skb) {
756 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
757 if (!skb) {
758 err = -ENOMEM;
759 break;
760 }
761
762 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
763 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
764 }
765
766 len = min_t(uint, hci_skb_expect(skb), count);
767 skb_put_data(skb, buffer, len);
768
769 count -= len;
770 buffer += len;
771 hci_skb_expect(skb) -= len;
772
773 if (skb->len == HCI_ACL_HDR_SIZE) {
774 __le16 dlen = hci_acl_hdr(skb)->dlen;
775
776 /* Complete ACL header */
777 hci_skb_expect(skb) = __le16_to_cpu(dlen);
778
779 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
780 kfree_skb(skb);
781 skb = NULL;
782
783 err = -EILSEQ;
784 break;
785 }
786 }
787
788 if (!hci_skb_expect(skb)) {
789 /* Complete frame */
790 hci_recv_frame(data->hdev, skb);
791 skb = NULL;
792 }
793 }
794
795 data->acl_skb = skb;
796 spin_unlock_irqrestore(&data->rxlock, flags);
797
798 return err;
799}
800
801static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
802{
803 struct sk_buff *skb;
804 unsigned long flags;
805 int err = 0;
806
807 spin_lock_irqsave(&data->rxlock, flags);
808 skb = data->sco_skb;
809
810 while (count) {
811 int len;
812
813 if (!skb) {
814 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
815 if (!skb) {
816 err = -ENOMEM;
817 break;
818 }
819
820 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
821 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
822 }
823
824 len = min_t(uint, hci_skb_expect(skb), count);
825 skb_put_data(skb, buffer, len);
826
827 count -= len;
828 buffer += len;
829 hci_skb_expect(skb) -= len;
830
831 if (skb->len == HCI_SCO_HDR_SIZE) {
832 /* Complete SCO header */
833 hci_skb_expect(skb) = hci_sco_hdr(skb)->dlen;
834
835 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
836 kfree_skb(skb);
837 skb = NULL;
838
839 err = -EILSEQ;
840 break;
841 }
842 }
843
844 if (!hci_skb_expect(skb)) {
845 /* Complete frame */
846 hci_recv_frame(data->hdev, skb);
847 skb = NULL;
848 }
849 }
850
851 data->sco_skb = skb;
852 spin_unlock_irqrestore(&data->rxlock, flags);
853
854 return err;
855}
856
857static void btusb_intr_complete(struct urb *urb)
858{
859 struct hci_dev *hdev = urb->context;
860 struct btusb_data *data = hci_get_drvdata(hdev);
861 int err;
862
863 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
864 urb->actual_length);
865
866 if (!test_bit(HCI_RUNNING, &hdev->flags))
867 return;
868
869 if (urb->status == 0) {
870 hdev->stat.byte_rx += urb->actual_length;
871
872 if (btusb_recv_intr(data, urb->transfer_buffer,
873 urb->actual_length) < 0) {
874 bt_dev_err(hdev, "corrupted event packet");
875 hdev->stat.err_rx++;
876 }
877 } else if (urb->status == -ENOENT) {
878 /* Avoid suspend failed when usb_kill_urb */
879 return;
880 }
881
882 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
883 return;
884
885 usb_mark_last_busy(data->udev);
886 usb_anchor_urb(urb, &data->intr_anchor);
887
888 err = usb_submit_urb(urb, GFP_ATOMIC);
889 if (err < 0) {
890 /* -EPERM: urb is being killed;
891 * -ENODEV: device got disconnected
892 */
893 if (err != -EPERM && err != -ENODEV)
894 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
895 urb, -err);
896 usb_unanchor_urb(urb);
897 }
898}
899
900static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
901{
902 struct btusb_data *data = hci_get_drvdata(hdev);
903 struct urb *urb;
904 unsigned char *buf;
905 unsigned int pipe;
906 int err, size;
907
908 BT_DBG("%s", hdev->name);
909
910 if (!data->intr_ep)
911 return -ENODEV;
912
913 urb = usb_alloc_urb(0, mem_flags);
914 if (!urb)
915 return -ENOMEM;
916
917 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
918
919 buf = kmalloc(size, mem_flags);
920 if (!buf) {
921 usb_free_urb(urb);
922 return -ENOMEM;
923 }
924
925 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
926
927 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
928 btusb_intr_complete, hdev, data->intr_ep->bInterval);
929
930 urb->transfer_flags |= URB_FREE_BUFFER;
931
932 usb_anchor_urb(urb, &data->intr_anchor);
933
934 err = usb_submit_urb(urb, mem_flags);
935 if (err < 0) {
936 if (err != -EPERM && err != -ENODEV)
937 bt_dev_err(hdev, "urb %p submission failed (%d)",
938 urb, -err);
939 usb_unanchor_urb(urb);
940 }
941
942 usb_free_urb(urb);
943
944 return err;
945}
946
947static void btusb_bulk_complete(struct urb *urb)
948{
949 struct hci_dev *hdev = urb->context;
950 struct btusb_data *data = hci_get_drvdata(hdev);
951 int err;
952
953 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
954 urb->actual_length);
955
956 if (!test_bit(HCI_RUNNING, &hdev->flags))
957 return;
958
959 if (urb->status == 0) {
960 hdev->stat.byte_rx += urb->actual_length;
961
962 if (data->recv_bulk(data, urb->transfer_buffer,
963 urb->actual_length) < 0) {
964 bt_dev_err(hdev, "corrupted ACL packet");
965 hdev->stat.err_rx++;
966 }
967 } else if (urb->status == -ENOENT) {
968 /* Avoid suspend failed when usb_kill_urb */
969 return;
970 }
971
972 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
973 return;
974
975 usb_anchor_urb(urb, &data->bulk_anchor);
976 usb_mark_last_busy(data->udev);
977
978 err = usb_submit_urb(urb, GFP_ATOMIC);
979 if (err < 0) {
980 /* -EPERM: urb is being killed;
981 * -ENODEV: device got disconnected
982 */
983 if (err != -EPERM && err != -ENODEV)
984 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
985 urb, -err);
986 usb_unanchor_urb(urb);
987 }
988}
989
990static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
991{
992 struct btusb_data *data = hci_get_drvdata(hdev);
993 struct urb *urb;
994 unsigned char *buf;
995 unsigned int pipe;
996 int err, size = HCI_MAX_FRAME_SIZE;
997
998 BT_DBG("%s", hdev->name);
999
1000 if (!data->bulk_rx_ep)
1001 return -ENODEV;
1002
1003 urb = usb_alloc_urb(0, mem_flags);
1004 if (!urb)
1005 return -ENOMEM;
1006
1007 buf = kmalloc(size, mem_flags);
1008 if (!buf) {
1009 usb_free_urb(urb);
1010 return -ENOMEM;
1011 }
1012
1013 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
1014
1015 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1016 btusb_bulk_complete, hdev);
1017
1018 urb->transfer_flags |= URB_FREE_BUFFER;
1019
1020 usb_mark_last_busy(data->udev);
1021 usb_anchor_urb(urb, &data->bulk_anchor);
1022
1023 err = usb_submit_urb(urb, mem_flags);
1024 if (err < 0) {
1025 if (err != -EPERM && err != -ENODEV)
1026 bt_dev_err(hdev, "urb %p submission failed (%d)",
1027 urb, -err);
1028 usb_unanchor_urb(urb);
1029 }
1030
1031 usb_free_urb(urb);
1032
1033 return err;
1034}
1035
1036static void btusb_isoc_complete(struct urb *urb)
1037{
1038 struct hci_dev *hdev = urb->context;
1039 struct btusb_data *data = hci_get_drvdata(hdev);
1040 int i, err;
1041
1042 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1043 urb->actual_length);
1044
1045 if (!test_bit(HCI_RUNNING, &hdev->flags))
1046 return;
1047
1048 if (urb->status == 0) {
1049 for (i = 0; i < urb->number_of_packets; i++) {
1050 unsigned int offset = urb->iso_frame_desc[i].offset;
1051 unsigned int length = urb->iso_frame_desc[i].actual_length;
1052
1053 if (urb->iso_frame_desc[i].status)
1054 continue;
1055
1056 hdev->stat.byte_rx += length;
1057
1058 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
1059 length) < 0) {
1060 bt_dev_err(hdev, "corrupted SCO packet");
1061 hdev->stat.err_rx++;
1062 }
1063 }
1064 } else if (urb->status == -ENOENT) {
1065 /* Avoid suspend failed when usb_kill_urb */
1066 return;
1067 }
1068
1069 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
1070 return;
1071
1072 usb_anchor_urb(urb, &data->isoc_anchor);
1073
1074 err = usb_submit_urb(urb, GFP_ATOMIC);
1075 if (err < 0) {
1076 /* -EPERM: urb is being killed;
1077 * -ENODEV: device got disconnected
1078 */
1079 if (err != -EPERM && err != -ENODEV)
1080 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1081 urb, -err);
1082 usb_unanchor_urb(urb);
1083 }
1084}
1085
1086static inline void __fill_isoc_descriptor_msbc(struct urb *urb, int len,
1087 int mtu, struct btusb_data *data)
1088{
1089 int i, offset = 0;
1090 unsigned int interval;
1091
1092 BT_DBG("len %d mtu %d", len, mtu);
1093
1094 /* For mSBC ALT 6 setting the host will send the packet at continuous
1095 * flow. As per core spec 5, vol 4, part B, table 2.1. For ALT setting
1096 * 6 the HCI PACKET INTERVAL should be 7.5ms for every usb packets.
1097 * To maintain the rate we send 63bytes of usb packets alternatively for
1098 * 7ms and 8ms to maintain the rate as 7.5ms.
1099 */
1100 if (data->usb_alt6_packet_flow) {
1101 interval = 7;
1102 data->usb_alt6_packet_flow = false;
1103 } else {
1104 interval = 6;
1105 data->usb_alt6_packet_flow = true;
1106 }
1107
1108 for (i = 0; i < interval; i++) {
1109 urb->iso_frame_desc[i].offset = offset;
1110 urb->iso_frame_desc[i].length = offset;
1111 }
1112
1113 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1114 urb->iso_frame_desc[i].offset = offset;
1115 urb->iso_frame_desc[i].length = len;
1116 i++;
1117 }
1118
1119 urb->number_of_packets = i;
1120}
1121
1122static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
1123{
1124 int i, offset = 0;
1125
1126 BT_DBG("len %d mtu %d", len, mtu);
1127
1128 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
1129 i++, offset += mtu, len -= mtu) {
1130 urb->iso_frame_desc[i].offset = offset;
1131 urb->iso_frame_desc[i].length = mtu;
1132 }
1133
1134 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1135 urb->iso_frame_desc[i].offset = offset;
1136 urb->iso_frame_desc[i].length = len;
1137 i++;
1138 }
1139
1140 urb->number_of_packets = i;
1141}
1142
1143static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
1144{
1145 struct btusb_data *data = hci_get_drvdata(hdev);
1146 struct urb *urb;
1147 unsigned char *buf;
1148 unsigned int pipe;
1149 int err, size;
1150
1151 BT_DBG("%s", hdev->name);
1152
1153 if (!data->isoc_rx_ep)
1154 return -ENODEV;
1155
1156 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
1157 if (!urb)
1158 return -ENOMEM;
1159
1160 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
1161 BTUSB_MAX_ISOC_FRAMES;
1162
1163 buf = kmalloc(size, mem_flags);
1164 if (!buf) {
1165 usb_free_urb(urb);
1166 return -ENOMEM;
1167 }
1168
1169 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
1170
1171 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
1172 hdev, data->isoc_rx_ep->bInterval);
1173
1174 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
1175
1176 __fill_isoc_descriptor(urb, size,
1177 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
1178
1179 usb_anchor_urb(urb, &data->isoc_anchor);
1180
1181 err = usb_submit_urb(urb, mem_flags);
1182 if (err < 0) {
1183 if (err != -EPERM && err != -ENODEV)
1184 bt_dev_err(hdev, "urb %p submission failed (%d)",
1185 urb, -err);
1186 usb_unanchor_urb(urb);
1187 }
1188
1189 usb_free_urb(urb);
1190
1191 return err;
1192}
1193
1194static void btusb_diag_complete(struct urb *urb)
1195{
1196 struct hci_dev *hdev = urb->context;
1197 struct btusb_data *data = hci_get_drvdata(hdev);
1198 int err;
1199
1200 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1201 urb->actual_length);
1202
1203 if (urb->status == 0) {
1204 struct sk_buff *skb;
1205
1206 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
1207 if (skb) {
1208 skb_put_data(skb, urb->transfer_buffer,
1209 urb->actual_length);
1210 hci_recv_diag(hdev, skb);
1211 }
1212 } else if (urb->status == -ENOENT) {
1213 /* Avoid suspend failed when usb_kill_urb */
1214 return;
1215 }
1216
1217 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
1218 return;
1219
1220 usb_anchor_urb(urb, &data->diag_anchor);
1221 usb_mark_last_busy(data->udev);
1222
1223 err = usb_submit_urb(urb, GFP_ATOMIC);
1224 if (err < 0) {
1225 /* -EPERM: urb is being killed;
1226 * -ENODEV: device got disconnected
1227 */
1228 if (err != -EPERM && err != -ENODEV)
1229 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1230 urb, -err);
1231 usb_unanchor_urb(urb);
1232 }
1233}
1234
1235static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
1236{
1237 struct btusb_data *data = hci_get_drvdata(hdev);
1238 struct urb *urb;
1239 unsigned char *buf;
1240 unsigned int pipe;
1241 int err, size = HCI_MAX_FRAME_SIZE;
1242
1243 BT_DBG("%s", hdev->name);
1244
1245 if (!data->diag_rx_ep)
1246 return -ENODEV;
1247
1248 urb = usb_alloc_urb(0, mem_flags);
1249 if (!urb)
1250 return -ENOMEM;
1251
1252 buf = kmalloc(size, mem_flags);
1253 if (!buf) {
1254 usb_free_urb(urb);
1255 return -ENOMEM;
1256 }
1257
1258 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
1259
1260 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1261 btusb_diag_complete, hdev);
1262
1263 urb->transfer_flags |= URB_FREE_BUFFER;
1264
1265 usb_mark_last_busy(data->udev);
1266 usb_anchor_urb(urb, &data->diag_anchor);
1267
1268 err = usb_submit_urb(urb, mem_flags);
1269 if (err < 0) {
1270 if (err != -EPERM && err != -ENODEV)
1271 bt_dev_err(hdev, "urb %p submission failed (%d)",
1272 urb, -err);
1273 usb_unanchor_urb(urb);
1274 }
1275
1276 usb_free_urb(urb);
1277
1278 return err;
1279}
1280
1281static void btusb_tx_complete(struct urb *urb)
1282{
1283 struct sk_buff *skb = urb->context;
1284 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1285 struct btusb_data *data = hci_get_drvdata(hdev);
1286 unsigned long flags;
1287
1288 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1289 urb->actual_length);
1290
1291 if (!test_bit(HCI_RUNNING, &hdev->flags))
1292 goto done;
1293
1294 if (!urb->status)
1295 hdev->stat.byte_tx += urb->transfer_buffer_length;
1296 else
1297 hdev->stat.err_tx++;
1298
1299done:
1300 spin_lock_irqsave(&data->txlock, flags);
1301 data->tx_in_flight--;
1302 spin_unlock_irqrestore(&data->txlock, flags);
1303
1304 kfree(urb->setup_packet);
1305
1306 kfree_skb(skb);
1307}
1308
1309static void btusb_isoc_tx_complete(struct urb *urb)
1310{
1311 struct sk_buff *skb = urb->context;
1312 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1313
1314 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1315 urb->actual_length);
1316
1317 if (!test_bit(HCI_RUNNING, &hdev->flags))
1318 goto done;
1319
1320 if (!urb->status)
1321 hdev->stat.byte_tx += urb->transfer_buffer_length;
1322 else
1323 hdev->stat.err_tx++;
1324
1325done:
1326 kfree(urb->setup_packet);
1327
1328 kfree_skb(skb);
1329}
1330
1331static int btusb_open(struct hci_dev *hdev)
1332{
1333 struct btusb_data *data = hci_get_drvdata(hdev);
1334 int err;
1335
1336 BT_DBG("%s", hdev->name);
1337
1338 err = usb_autopm_get_interface(data->intf);
1339 if (err < 0)
1340 return err;
1341
1342 /* Patching USB firmware files prior to starting any URBs of HCI path
1343 * It is more safe to use USB bulk channel for downloading USB patch
1344 */
1345 if (data->setup_on_usb) {
1346 err = data->setup_on_usb(hdev);
1347 if (err < 0)
1348 goto setup_fail;
1349 }
1350
1351 data->intf->needs_remote_wakeup = 1;
1352
1353 /* Disable device remote wakeup when host is suspended
1354 * For Realtek chips, global suspend without
1355 * SET_FEATURE (DEVICE_REMOTE_WAKEUP) can save more power in device.
1356 */
1357 if (test_bit(BTUSB_WAKEUP_DISABLE, &data->flags))
1358 device_wakeup_disable(&data->udev->dev);
1359
1360 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
1361 goto done;
1362
1363 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
1364 if (err < 0)
1365 goto failed;
1366
1367 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1368 if (err < 0) {
1369 usb_kill_anchored_urbs(&data->intr_anchor);
1370 goto failed;
1371 }
1372
1373 set_bit(BTUSB_BULK_RUNNING, &data->flags);
1374 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1375
1376 if (data->diag) {
1377 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1378 set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1379 }
1380
1381done:
1382 usb_autopm_put_interface(data->intf);
1383 return 0;
1384
1385failed:
1386 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1387setup_fail:
1388 usb_autopm_put_interface(data->intf);
1389 return err;
1390}
1391
1392static void btusb_stop_traffic(struct btusb_data *data)
1393{
1394 usb_kill_anchored_urbs(&data->intr_anchor);
1395 usb_kill_anchored_urbs(&data->bulk_anchor);
1396 usb_kill_anchored_urbs(&data->isoc_anchor);
1397 usb_kill_anchored_urbs(&data->diag_anchor);
1398 usb_kill_anchored_urbs(&data->ctrl_anchor);
1399}
1400
1401static int btusb_close(struct hci_dev *hdev)
1402{
1403 struct btusb_data *data = hci_get_drvdata(hdev);
1404 int err;
1405
1406 BT_DBG("%s", hdev->name);
1407
1408 cancel_work_sync(&data->work);
1409 cancel_work_sync(&data->waker);
1410
1411 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1412 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1413 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1414 clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
1415
1416 btusb_stop_traffic(data);
1417 btusb_free_frags(data);
1418
1419 err = usb_autopm_get_interface(data->intf);
1420 if (err < 0)
1421 goto failed;
1422
1423 data->intf->needs_remote_wakeup = 0;
1424
1425 /* Enable remote wake up for auto-suspend */
1426 if (test_bit(BTUSB_WAKEUP_DISABLE, &data->flags))
1427 data->intf->needs_remote_wakeup = 1;
1428
1429 usb_autopm_put_interface(data->intf);
1430
1431failed:
1432 usb_scuttle_anchored_urbs(&data->deferred);
1433 return 0;
1434}
1435
1436static int btusb_flush(struct hci_dev *hdev)
1437{
1438 struct btusb_data *data = hci_get_drvdata(hdev);
1439
1440 BT_DBG("%s", hdev->name);
1441
1442 usb_kill_anchored_urbs(&data->tx_anchor);
1443 btusb_free_frags(data);
1444
1445 return 0;
1446}
1447
1448static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
1449{
1450 struct btusb_data *data = hci_get_drvdata(hdev);
1451 struct usb_ctrlrequest *dr;
1452 struct urb *urb;
1453 unsigned int pipe;
1454
1455 urb = usb_alloc_urb(0, GFP_KERNEL);
1456 if (!urb)
1457 return ERR_PTR(-ENOMEM);
1458
1459 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1460 if (!dr) {
1461 usb_free_urb(urb);
1462 return ERR_PTR(-ENOMEM);
1463 }
1464
1465 dr->bRequestType = data->cmdreq_type;
1466 dr->bRequest = data->cmdreq;
1467 dr->wIndex = 0;
1468 dr->wValue = 0;
1469 dr->wLength = __cpu_to_le16(skb->len);
1470
1471 pipe = usb_sndctrlpipe(data->udev, 0x00);
1472
1473 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
1474 skb->data, skb->len, btusb_tx_complete, skb);
1475
1476 skb->dev = (void *)hdev;
1477
1478 return urb;
1479}
1480
1481static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1482{
1483 struct btusb_data *data = hci_get_drvdata(hdev);
1484 struct urb *urb;
1485 unsigned int pipe;
1486
1487 if (!data->bulk_tx_ep)
1488 return ERR_PTR(-ENODEV);
1489
1490 urb = usb_alloc_urb(0, GFP_KERNEL);
1491 if (!urb)
1492 return ERR_PTR(-ENOMEM);
1493
1494 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
1495
1496 usb_fill_bulk_urb(urb, data->udev, pipe,
1497 skb->data, skb->len, btusb_tx_complete, skb);
1498
1499 skb->dev = (void *)hdev;
1500
1501 return urb;
1502}
1503
1504static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1505{
1506 struct btusb_data *data = hci_get_drvdata(hdev);
1507 struct urb *urb;
1508 unsigned int pipe;
1509
1510 if (!data->isoc_tx_ep)
1511 return ERR_PTR(-ENODEV);
1512
1513 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1514 if (!urb)
1515 return ERR_PTR(-ENOMEM);
1516
1517 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
1518
1519 usb_fill_int_urb(urb, data->udev, pipe,
1520 skb->data, skb->len, btusb_isoc_tx_complete,
1521 skb, data->isoc_tx_ep->bInterval);
1522
1523 urb->transfer_flags = URB_ISO_ASAP;
1524
1525 if (data->isoc_altsetting == 6)
1526 __fill_isoc_descriptor_msbc(urb, skb->len,
1527 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize),
1528 data);
1529 else
1530 __fill_isoc_descriptor(urb, skb->len,
1531 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
1532 skb->dev = (void *)hdev;
1533
1534 return urb;
1535}
1536
1537static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
1538{
1539 struct btusb_data *data = hci_get_drvdata(hdev);
1540 int err;
1541
1542 usb_anchor_urb(urb, &data->tx_anchor);
1543
1544 err = usb_submit_urb(urb, GFP_KERNEL);
1545 if (err < 0) {
1546 if (err != -EPERM && err != -ENODEV)
1547 bt_dev_err(hdev, "urb %p submission failed (%d)",
1548 urb, -err);
1549 kfree(urb->setup_packet);
1550 usb_unanchor_urb(urb);
1551 } else {
1552 usb_mark_last_busy(data->udev);
1553 }
1554
1555 usb_free_urb(urb);
1556 return err;
1557}
1558
1559static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
1560{
1561 struct btusb_data *data = hci_get_drvdata(hdev);
1562 unsigned long flags;
1563 bool suspending;
1564
1565 spin_lock_irqsave(&data->txlock, flags);
1566 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
1567 if (!suspending)
1568 data->tx_in_flight++;
1569 spin_unlock_irqrestore(&data->txlock, flags);
1570
1571 if (!suspending)
1572 return submit_tx_urb(hdev, urb);
1573
1574 usb_anchor_urb(urb, &data->deferred);
1575 schedule_work(&data->waker);
1576
1577 usb_free_urb(urb);
1578 return 0;
1579}
1580
1581static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
1582{
1583 struct urb *urb;
1584
1585 BT_DBG("%s", hdev->name);
1586
1587 switch (hci_skb_pkt_type(skb)) {
1588 case HCI_COMMAND_PKT:
1589 urb = alloc_ctrl_urb(hdev, skb);
1590 if (IS_ERR(urb))
1591 return PTR_ERR(urb);
1592
1593 hdev->stat.cmd_tx++;
1594 return submit_or_queue_tx_urb(hdev, urb);
1595
1596 case HCI_ACLDATA_PKT:
1597 urb = alloc_bulk_urb(hdev, skb);
1598 if (IS_ERR(urb))
1599 return PTR_ERR(urb);
1600
1601 hdev->stat.acl_tx++;
1602 return submit_or_queue_tx_urb(hdev, urb);
1603
1604 case HCI_SCODATA_PKT:
1605 if (hci_conn_num(hdev, SCO_LINK) < 1)
1606 return -ENODEV;
1607
1608 urb = alloc_isoc_urb(hdev, skb);
1609 if (IS_ERR(urb))
1610 return PTR_ERR(urb);
1611
1612 hdev->stat.sco_tx++;
1613 return submit_tx_urb(hdev, urb);
1614 }
1615
1616 return -EILSEQ;
1617}
1618
1619static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
1620{
1621 struct btusb_data *data = hci_get_drvdata(hdev);
1622
1623 BT_DBG("%s evt %d", hdev->name, evt);
1624
1625 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
1626 data->sco_num = hci_conn_num(hdev, SCO_LINK);
1627 data->air_mode = evt;
1628 schedule_work(&data->work);
1629 }
1630}
1631
1632static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
1633{
1634 struct btusb_data *data = hci_get_drvdata(hdev);
1635 struct usb_interface *intf = data->isoc;
1636 struct usb_endpoint_descriptor *ep_desc;
1637 int i, err;
1638
1639 if (!data->isoc)
1640 return -ENODEV;
1641
1642 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting);
1643 if (err < 0) {
1644 bt_dev_err(hdev, "setting interface failed (%d)", -err);
1645 return err;
1646 }
1647
1648 data->isoc_altsetting = altsetting;
1649
1650 data->isoc_tx_ep = NULL;
1651 data->isoc_rx_ep = NULL;
1652
1653 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1654 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1655
1656 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
1657 data->isoc_tx_ep = ep_desc;
1658 continue;
1659 }
1660
1661 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
1662 data->isoc_rx_ep = ep_desc;
1663 continue;
1664 }
1665 }
1666
1667 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
1668 bt_dev_err(hdev, "invalid SCO descriptors");
1669 return -ENODEV;
1670 }
1671
1672 return 0;
1673}
1674
1675static int btusb_switch_alt_setting(struct hci_dev *hdev, int new_alts)
1676{
1677 struct btusb_data *data = hci_get_drvdata(hdev);
1678 int err;
1679
1680 if (data->isoc_altsetting != new_alts) {
1681 unsigned long flags;
1682
1683 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1684 usb_kill_anchored_urbs(&data->isoc_anchor);
1685
1686 /* When isochronous alternate setting needs to be
1687 * changed, because SCO connection has been added
1688 * or removed, a packet fragment may be left in the
1689 * reassembling state. This could lead to wrongly
1690 * assembled fragments.
1691 *
1692 * Clear outstanding fragment when selecting a new
1693 * alternate setting.
1694 */
1695 spin_lock_irqsave(&data->rxlock, flags);
1696 kfree_skb(data->sco_skb);
1697 data->sco_skb = NULL;
1698 spin_unlock_irqrestore(&data->rxlock, flags);
1699
1700 err = __set_isoc_interface(hdev, new_alts);
1701 if (err < 0)
1702 return err;
1703 }
1704
1705 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1706 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
1707 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1708 else
1709 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
1710 }
1711
1712 return 0;
1713}
1714
1715static struct usb_host_interface *btusb_find_altsetting(struct btusb_data *data,
1716 int alt)
1717{
1718 struct usb_interface *intf = data->isoc;
1719 int i;
1720
1721 BT_DBG("Looking for Alt no :%d", alt);
1722
1723 if (!intf)
1724 return NULL;
1725
1726 for (i = 0; i < intf->num_altsetting; i++) {
1727 if (intf->altsetting[i].desc.bAlternateSetting == alt)
1728 return &intf->altsetting[i];
1729 }
1730
1731 return NULL;
1732}
1733
1734static void btusb_work(struct work_struct *work)
1735{
1736 struct btusb_data *data = container_of(work, struct btusb_data, work);
1737 struct hci_dev *hdev = data->hdev;
1738 int new_alts = 0;
1739 int err;
1740
1741 if (data->sco_num > 0) {
1742 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
1743 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
1744 if (err < 0) {
1745 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1746 usb_kill_anchored_urbs(&data->isoc_anchor);
1747 return;
1748 }
1749
1750 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
1751 }
1752
1753 if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_CVSD) {
1754 if (hdev->voice_setting & 0x0020) {
1755 static const int alts[3] = { 2, 4, 5 };
1756
1757 new_alts = alts[data->sco_num - 1];
1758 } else {
1759 new_alts = data->sco_num;
1760 }
1761 } else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) {
1762 /* Bluetooth USB spec recommends alt 6 (63 bytes), but
1763 * many adapters do not support it. Alt 1 appears to
1764 * work for all adapters that do not have alt 6, and
1765 * which work with WBS at all. Some devices prefer
1766 * alt 3 (HCI payload >= 60 Bytes let air packet
1767 * data satisfy 60 bytes), requiring
1768 * MTU >= 3 (packets) * 25 (size) - 3 (headers) = 72
1769 * see also Core spec 5, vol 4, B 2.1.1 & Table 2.1.
1770 */
1771 if (btusb_find_altsetting(data, 6))
1772 new_alts = 6;
1773 else if (btusb_find_altsetting(data, 3) &&
1774 hdev->sco_mtu >= 72 &&
1775 test_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags))
1776 new_alts = 3;
1777 else
1778 new_alts = 1;
1779 }
1780
1781 if (btusb_switch_alt_setting(hdev, new_alts) < 0)
1782 bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts);
1783 } else {
1784 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1785 usb_kill_anchored_urbs(&data->isoc_anchor);
1786
1787 __set_isoc_interface(hdev, 0);
1788 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
1789 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
1790 }
1791}
1792
1793static void btusb_waker(struct work_struct *work)
1794{
1795 struct btusb_data *data = container_of(work, struct btusb_data, waker);
1796 int err;
1797
1798 err = usb_autopm_get_interface(data->intf);
1799 if (err < 0)
1800 return;
1801
1802 usb_autopm_put_interface(data->intf);
1803}
1804
1805static int btusb_setup_bcm92035(struct hci_dev *hdev)
1806{
1807 struct sk_buff *skb;
1808 u8 val = 0x00;
1809
1810 BT_DBG("%s", hdev->name);
1811
1812 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
1813 if (IS_ERR(skb))
1814 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb));
1815 else
1816 kfree_skb(skb);
1817
1818 return 0;
1819}
1820
1821static int btusb_setup_csr(struct hci_dev *hdev)
1822{
1823 struct btusb_data *data = hci_get_drvdata(hdev);
1824 u16 bcdDevice = le16_to_cpu(data->udev->descriptor.bcdDevice);
1825 struct hci_rp_read_local_version *rp;
1826 struct sk_buff *skb;
1827 bool is_fake = false;
1828 int ret;
1829
1830 BT_DBG("%s", hdev->name);
1831
1832 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1833 HCI_INIT_TIMEOUT);
1834 if (IS_ERR(skb)) {
1835 int err = PTR_ERR(skb);
1836 bt_dev_err(hdev, "CSR: Local version failed (%d)", err);
1837 return err;
1838 }
1839
1840 if (skb->len != sizeof(struct hci_rp_read_local_version)) {
1841 bt_dev_err(hdev, "CSR: Local version length mismatch");
1842 kfree_skb(skb);
1843 return -EIO;
1844 }
1845
1846 rp = (struct hci_rp_read_local_version *)skb->data;
1847
1848 /* Detect a wide host of Chinese controllers that aren't CSR.
1849 *
1850 * Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891
1851 *
1852 * The main thing they have in common is that these are really popular low-cost
1853 * options that support newer Bluetooth versions but rely on heavy VID/PID
1854 * squatting of this poor old Bluetooth 1.1 device. Even sold as such.
1855 *
1856 * We detect actual CSR devices by checking that the HCI manufacturer code
1857 * is Cambridge Silicon Radio (10) and ensuring that LMP sub-version and
1858 * HCI rev values always match. As they both store the firmware number.
1859 */
1860 if (le16_to_cpu(rp->manufacturer) != 10 ||
1861 le16_to_cpu(rp->hci_rev) != le16_to_cpu(rp->lmp_subver))
1862 is_fake = true;
1863
1864 /* Known legit CSR firmware build numbers and their supported BT versions:
1865 * - 1.1 (0x1) -> 0x0073, 0x020d, 0x033c, 0x034e
1866 * - 1.2 (0x2) -> 0x04d9, 0x0529
1867 * - 2.0 (0x3) -> 0x07a6, 0x07ad, 0x0c5c
1868 * - 2.1 (0x4) -> 0x149c, 0x1735, 0x1899 (0x1899 is a BlueCore4-External)
1869 * - 4.0 (0x6) -> 0x1d86, 0x2031, 0x22bb
1870 *
1871 * e.g. Real CSR dongles with LMP subversion 0x73 are old enough that
1872 * support BT 1.1 only; so it's a dead giveaway when some
1873 * third-party BT 4.0 dongle reuses it.
1874 */
1875 else if (le16_to_cpu(rp->lmp_subver) <= 0x034e &&
1876 le16_to_cpu(rp->hci_ver) > BLUETOOTH_VER_1_1)
1877 is_fake = true;
1878
1879 else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 &&
1880 le16_to_cpu(rp->hci_ver) > BLUETOOTH_VER_1_2)
1881 is_fake = true;
1882
1883 else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c &&
1884 le16_to_cpu(rp->hci_ver) > BLUETOOTH_VER_2_0)
1885 is_fake = true;
1886
1887 else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 &&
1888 le16_to_cpu(rp->hci_ver) > BLUETOOTH_VER_2_1)
1889 is_fake = true;
1890
1891 else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb &&
1892 le16_to_cpu(rp->hci_ver) > BLUETOOTH_VER_4_0)
1893 is_fake = true;
1894
1895 /* Other clones which beat all the above checks */
1896 else if (bcdDevice == 0x0134 &&
1897 le16_to_cpu(rp->lmp_subver) == 0x0c5c &&
1898 le16_to_cpu(rp->hci_ver) == BLUETOOTH_VER_2_0)
1899 is_fake = true;
1900
1901 if (is_fake) {
1902 bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once...");
1903
1904 /* Generally these clones have big discrepancies between
1905 * advertised features and what's actually supported.
1906 * Probably will need to be expanded in the future;
1907 * without these the controller will lock up.
1908 */
1909 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
1910 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);
1911
1912 /* Clear the reset quirk since this is not an actual
1913 * early Bluetooth 1.1 device from CSR.
1914 */
1915 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1916 clear_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
1917
1918 /*
1919 * Special workaround for these BT 4.0 chip clones, and potentially more:
1920 *
1921 * - 0x0134: a Barrot 8041a02 (HCI rev: 0x1012 sub: 0x0810)
1922 * - 0x7558: IC markings FR3191AHAL 749H15143 (HCI rev/sub-version: 0x0709)
1923 *
1924 * These controllers are really messed-up.
1925 *
1926 * 1. Their bulk RX endpoint will never report any data unless
1927 * the device was suspended at least once (yes, really).
1928 * 2. They will not wakeup when autosuspended and receiving data
1929 * on their bulk RX endpoint from e.g. a keyboard or mouse
1930 * (IOW remote-wakeup support is broken for the bulk endpoint).
1931 *
1932 * To fix 1. enable runtime-suspend, force-suspend the
1933 * HCI and then wake-it up by disabling runtime-suspend.
1934 *
1935 * To fix 2. clear the HCI's can_wake flag, this way the HCI
1936 * will still be autosuspended when it is not open.
1937 *
1938 * --
1939 *
1940 * Because these are widespread problems we prefer generic solutions; so
1941 * apply this initialization quirk to every controller that gets here,
1942 * it should be harmless. The alternative is to not work at all.
1943 */
1944 pm_runtime_allow(&data->udev->dev);
1945
1946 ret = pm_runtime_suspend(&data->udev->dev);
1947 if (ret >= 0)
1948 msleep(200);
1949 else
1950 bt_dev_err(hdev, "CSR: Failed to suspend the device for our Barrot 8041a02 receive-issue workaround");
1951
1952 pm_runtime_forbid(&data->udev->dev);
1953
1954 device_set_wakeup_capable(&data->udev->dev, false);
1955
1956 /* Re-enable autosuspend if this was requested */
1957 if (enable_autosuspend)
1958 usb_enable_autosuspend(data->udev);
1959 }
1960
1961 kfree_skb(skb);
1962
1963 return 0;
1964}
1965
1966static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
1967 struct intel_version *ver)
1968{
1969 const struct firmware *fw;
1970 char fwname[64];
1971 int ret;
1972
1973 snprintf(fwname, sizeof(fwname),
1974 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1975 ver->hw_platform, ver->hw_variant, ver->hw_revision,
1976 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
1977 ver->fw_build_ww, ver->fw_build_yy);
1978
1979 ret = request_firmware(&fw, fwname, &hdev->dev);
1980 if (ret < 0) {
1981 if (ret == -EINVAL) {
1982 bt_dev_err(hdev, "Intel firmware file request failed (%d)",
1983 ret);
1984 return NULL;
1985 }
1986
1987 bt_dev_err(hdev, "failed to open Intel firmware file: %s (%d)",
1988 fwname, ret);
1989
1990 /* If the correct firmware patch file is not found, use the
1991 * default firmware patch file instead
1992 */
1993 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1994 ver->hw_platform, ver->hw_variant);
1995 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1996 bt_dev_err(hdev, "failed to open default fw file: %s",
1997 fwname);
1998 return NULL;
1999 }
2000 }
2001
2002 bt_dev_info(hdev, "Intel Bluetooth firmware file: %s", fwname);
2003
2004 return fw;
2005}
2006
2007static int btusb_setup_intel_patching(struct hci_dev *hdev,
2008 const struct firmware *fw,
2009 const u8 **fw_ptr, int *disable_patch)
2010{
2011 struct sk_buff *skb;
2012 struct hci_command_hdr *cmd;
2013 const u8 *cmd_param;
2014 struct hci_event_hdr *evt = NULL;
2015 const u8 *evt_param = NULL;
2016 int remain = fw->size - (*fw_ptr - fw->data);
2017
2018 /* The first byte indicates the types of the patch command or event.
2019 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
2020 * in the current firmware buffer doesn't start with 0x01 or
2021 * the size of remain buffer is smaller than HCI command header,
2022 * the firmware file is corrupted and it should stop the patching
2023 * process.
2024 */
2025 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
2026 bt_dev_err(hdev, "Intel fw corrupted: invalid cmd read");
2027 return -EINVAL;
2028 }
2029 (*fw_ptr)++;
2030 remain--;
2031
2032 cmd = (struct hci_command_hdr *)(*fw_ptr);
2033 *fw_ptr += sizeof(*cmd);
2034 remain -= sizeof(*cmd);
2035
2036 /* Ensure that the remain firmware data is long enough than the length
2037 * of command parameter. If not, the firmware file is corrupted.
2038 */
2039 if (remain < cmd->plen) {
2040 bt_dev_err(hdev, "Intel fw corrupted: invalid cmd len");
2041 return -EFAULT;
2042 }
2043
2044 /* If there is a command that loads a patch in the firmware
2045 * file, then enable the patch upon success, otherwise just
2046 * disable the manufacturer mode, for example patch activation
2047 * is not required when the default firmware patch file is used
2048 * because there are no patch data to load.
2049 */
2050 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
2051 *disable_patch = 0;
2052
2053 cmd_param = *fw_ptr;
2054 *fw_ptr += cmd->plen;
2055 remain -= cmd->plen;
2056
2057 /* This reads the expected events when the above command is sent to the
2058 * device. Some vendor commands expects more than one events, for
2059 * example command status event followed by vendor specific event.
2060 * For this case, it only keeps the last expected event. so the command
2061 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
2062 * last expected event.
2063 */
2064 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
2065 (*fw_ptr)++;
2066 remain--;
2067
2068 evt = (struct hci_event_hdr *)(*fw_ptr);
2069 *fw_ptr += sizeof(*evt);
2070 remain -= sizeof(*evt);
2071
2072 if (remain < evt->plen) {
2073 bt_dev_err(hdev, "Intel fw corrupted: invalid evt len");
2074 return -EFAULT;
2075 }
2076
2077 evt_param = *fw_ptr;
2078 *fw_ptr += evt->plen;
2079 remain -= evt->plen;
2080 }
2081
2082 /* Every HCI commands in the firmware file has its correspond event.
2083 * If event is not found or remain is smaller than zero, the firmware
2084 * file is corrupted.
2085 */
2086 if (!evt || !evt_param || remain < 0) {
2087 bt_dev_err(hdev, "Intel fw corrupted: invalid evt read");
2088 return -EFAULT;
2089 }
2090
2091 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
2092 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
2093 if (IS_ERR(skb)) {
2094 bt_dev_err(hdev, "sending Intel patch command (0x%4.4x) failed (%ld)",
2095 cmd->opcode, PTR_ERR(skb));
2096 return PTR_ERR(skb);
2097 }
2098
2099 /* It ensures that the returned event matches the event data read from
2100 * the firmware file. At fist, it checks the length and then
2101 * the contents of the event.
2102 */
2103 if (skb->len != evt->plen) {
2104 bt_dev_err(hdev, "mismatch event length (opcode 0x%4.4x)",
2105 le16_to_cpu(cmd->opcode));
2106 kfree_skb(skb);
2107 return -EFAULT;
2108 }
2109
2110 if (memcmp(skb->data, evt_param, evt->plen)) {
2111 bt_dev_err(hdev, "mismatch event parameter (opcode 0x%4.4x)",
2112 le16_to_cpu(cmd->opcode));
2113 kfree_skb(skb);
2114 return -EFAULT;
2115 }
2116 kfree_skb(skb);
2117
2118 return 0;
2119}
2120
2121static int btusb_setup_intel(struct hci_dev *hdev)
2122{
2123 struct sk_buff *skb;
2124 const struct firmware *fw;
2125 const u8 *fw_ptr;
2126 int disable_patch, err;
2127 struct intel_version ver;
2128
2129 BT_DBG("%s", hdev->name);
2130
2131 /* The controller has a bug with the first HCI command sent to it
2132 * returning number of completed commands as zero. This would stall the
2133 * command processing in the Bluetooth core.
2134 *
2135 * As a workaround, send HCI Reset command first which will reset the
2136 * number of completed commands and allow normal command processing
2137 * from now on.
2138 */
2139 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
2140 if (IS_ERR(skb)) {
2141 bt_dev_err(hdev, "sending initial HCI reset command failed (%ld)",
2142 PTR_ERR(skb));
2143 return PTR_ERR(skb);
2144 }
2145 kfree_skb(skb);
2146
2147 /* Read Intel specific controller version first to allow selection of
2148 * which firmware file to load.
2149 *
2150 * The returned information are hardware variant and revision plus
2151 * firmware variant, revision and build number.
2152 */
2153 err = btintel_read_version(hdev, &ver);
2154 if (err)
2155 return err;
2156
2157 bt_dev_info(hdev, "read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
2158 ver.hw_platform, ver.hw_variant, ver.hw_revision,
2159 ver.fw_variant, ver.fw_revision, ver.fw_build_num,
2160 ver.fw_build_ww, ver.fw_build_yy, ver.fw_patch_num);
2161
2162 /* fw_patch_num indicates the version of patch the device currently
2163 * have. If there is no patch data in the device, it is always 0x00.
2164 * So, if it is other than 0x00, no need to patch the device again.
2165 */
2166 if (ver.fw_patch_num) {
2167 bt_dev_info(hdev, "Intel device is already patched. "
2168 "patch num: %02x", ver.fw_patch_num);
2169 goto complete;
2170 }
2171
2172 /* Opens the firmware patch file based on the firmware version read
2173 * from the controller. If it fails to open the matching firmware
2174 * patch file, it tries to open the default firmware patch file.
2175 * If no patch file is found, allow the device to operate without
2176 * a patch.
2177 */
2178 fw = btusb_setup_intel_get_fw(hdev, &ver);
2179 if (!fw)
2180 goto complete;
2181 fw_ptr = fw->data;
2182
2183 /* Enable the manufacturer mode of the controller.
2184 * Only while this mode is enabled, the driver can download the
2185 * firmware patch data and configuration parameters.
2186 */
2187 err = btintel_enter_mfg(hdev);
2188 if (err) {
2189 release_firmware(fw);
2190 return err;
2191 }
2192
2193 disable_patch = 1;
2194
2195 /* The firmware data file consists of list of Intel specific HCI
2196 * commands and its expected events. The first byte indicates the
2197 * type of the message, either HCI command or HCI event.
2198 *
2199 * It reads the command and its expected event from the firmware file,
2200 * and send to the controller. Once __hci_cmd_sync_ev() returns,
2201 * the returned event is compared with the event read from the firmware
2202 * file and it will continue until all the messages are downloaded to
2203 * the controller.
2204 *
2205 * Once the firmware patching is completed successfully,
2206 * the manufacturer mode is disabled with reset and activating the
2207 * downloaded patch.
2208 *
2209 * If the firmware patching fails, the manufacturer mode is
2210 * disabled with reset and deactivating the patch.
2211 *
2212 * If the default patch file is used, no reset is done when disabling
2213 * the manufacturer.
2214 */
2215 while (fw->size > fw_ptr - fw->data) {
2216 int ret;
2217
2218 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
2219 &disable_patch);
2220 if (ret < 0)
2221 goto exit_mfg_deactivate;
2222 }
2223
2224 release_firmware(fw);
2225
2226 if (disable_patch)
2227 goto exit_mfg_disable;
2228
2229 /* Patching completed successfully and disable the manufacturer mode
2230 * with reset and activate the downloaded firmware patches.
2231 */
2232 err = btintel_exit_mfg(hdev, true, true);
2233 if (err)
2234 return err;
2235
2236 /* Need build number for downloaded fw patches in
2237 * every power-on boot
2238 */
2239 err = btintel_read_version(hdev, &ver);
2240 if (err)
2241 return err;
2242 bt_dev_info(hdev, "Intel BT fw patch 0x%02x completed & activated",
2243 ver.fw_patch_num);
2244
2245 goto complete;
2246
2247exit_mfg_disable:
2248 /* Disable the manufacturer mode without reset */
2249 err = btintel_exit_mfg(hdev, false, false);
2250 if (err)
2251 return err;
2252
2253 bt_dev_info(hdev, "Intel firmware patch completed");
2254
2255 goto complete;
2256
2257exit_mfg_deactivate:
2258 release_firmware(fw);
2259
2260 /* Patching failed. Disable the manufacturer mode with reset and
2261 * deactivate the downloaded firmware patches.
2262 */
2263 err = btintel_exit_mfg(hdev, true, false);
2264 if (err)
2265 return err;
2266
2267 bt_dev_info(hdev, "Intel firmware patch completed and deactivated");
2268
2269complete:
2270 /* Set the event mask for Intel specific vendor events. This enables
2271 * a few extra events that are useful during general operation.
2272 */
2273 btintel_set_event_mask_mfg(hdev, false);
2274
2275 btintel_check_bdaddr(hdev);
2276 return 0;
2277}
2278
2279static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
2280{
2281 struct sk_buff *skb;
2282 struct hci_event_hdr *hdr;
2283 struct hci_ev_cmd_complete *evt;
2284
2285 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL);
2286 if (!skb)
2287 return -ENOMEM;
2288
2289 hdr = skb_put(skb, sizeof(*hdr));
2290 hdr->evt = HCI_EV_CMD_COMPLETE;
2291 hdr->plen = sizeof(*evt) + 1;
2292
2293 evt = skb_put(skb, sizeof(*evt));
2294 evt->ncmd = 0x01;
2295 evt->opcode = cpu_to_le16(opcode);
2296
2297 skb_put_u8(skb, 0x00);
2298
2299 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2300
2301 return hci_recv_frame(hdev, skb);
2302}
2303
2304static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
2305 int count)
2306{
2307 /* When the device is in bootloader mode, then it can send
2308 * events via the bulk endpoint. These events are treated the
2309 * same way as the ones received from the interrupt endpoint.
2310 */
2311 if (test_bit(BTUSB_BOOTLOADER, &data->flags))
2312 return btusb_recv_intr(data, buffer, count);
2313
2314 return btusb_recv_bulk(data, buffer, count);
2315}
2316
2317static void btusb_intel_bootup(struct btusb_data *data, const void *ptr,
2318 unsigned int len)
2319{
2320 const struct intel_bootup *evt = ptr;
2321
2322 if (len != sizeof(*evt))
2323 return;
2324
2325 if (test_and_clear_bit(BTUSB_BOOTING, &data->flags))
2326 wake_up_bit(&data->flags, BTUSB_BOOTING);
2327}
2328
2329static void btusb_intel_secure_send_result(struct btusb_data *data,
2330 const void *ptr, unsigned int len)
2331{
2332 const struct intel_secure_send_result *evt = ptr;
2333
2334 if (len != sizeof(*evt))
2335 return;
2336
2337 if (evt->result)
2338 set_bit(BTUSB_FIRMWARE_FAILED, &data->flags);
2339
2340 if (test_and_clear_bit(BTUSB_DOWNLOADING, &data->flags) &&
2341 test_bit(BTUSB_FIRMWARE_LOADED, &data->flags))
2342 wake_up_bit(&data->flags, BTUSB_DOWNLOADING);
2343}
2344
2345static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb)
2346{
2347 struct btusb_data *data = hci_get_drvdata(hdev);
2348
2349 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
2350 struct hci_event_hdr *hdr = (void *)skb->data;
2351
2352 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff &&
2353 hdr->plen > 0) {
2354 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1;
2355 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1;
2356
2357 switch (skb->data[2]) {
2358 case 0x02:
2359 /* When switching to the operational firmware
2360 * the device sends a vendor specific event
2361 * indicating that the bootup completed.
2362 */
2363 btusb_intel_bootup(data, ptr, len);
2364 break;
2365 case 0x06:
2366 /* When the firmware loading completes the
2367 * device sends out a vendor specific event
2368 * indicating the result of the firmware
2369 * loading.
2370 */
2371 btusb_intel_secure_send_result(data, ptr, len);
2372 break;
2373 }
2374 }
2375 }
2376
2377 return hci_recv_frame(hdev, skb);
2378}
2379
2380static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
2381{
2382 struct btusb_data *data = hci_get_drvdata(hdev);
2383 struct urb *urb;
2384
2385 BT_DBG("%s", hdev->name);
2386
2387 switch (hci_skb_pkt_type(skb)) {
2388 case HCI_COMMAND_PKT:
2389 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
2390 struct hci_command_hdr *cmd = (void *)skb->data;
2391 __u16 opcode = le16_to_cpu(cmd->opcode);
2392
2393 /* When in bootloader mode and the command 0xfc09
2394 * is received, it needs to be send down the
2395 * bulk endpoint. So allocate a bulk URB instead.
2396 */
2397 if (opcode == 0xfc09)
2398 urb = alloc_bulk_urb(hdev, skb);
2399 else
2400 urb = alloc_ctrl_urb(hdev, skb);
2401
2402 /* When the 0xfc01 command is issued to boot into
2403 * the operational firmware, it will actually not
2404 * send a command complete event. To keep the flow
2405 * control working inject that event here.
2406 */
2407 if (opcode == 0xfc01)
2408 inject_cmd_complete(hdev, opcode);
2409 } else {
2410 urb = alloc_ctrl_urb(hdev, skb);
2411 }
2412 if (IS_ERR(urb))
2413 return PTR_ERR(urb);
2414
2415 hdev->stat.cmd_tx++;
2416 return submit_or_queue_tx_urb(hdev, urb);
2417
2418 case HCI_ACLDATA_PKT:
2419 urb = alloc_bulk_urb(hdev, skb);
2420 if (IS_ERR(urb))
2421 return PTR_ERR(urb);
2422
2423 hdev->stat.acl_tx++;
2424 return submit_or_queue_tx_urb(hdev, urb);
2425
2426 case HCI_SCODATA_PKT:
2427 if (hci_conn_num(hdev, SCO_LINK) < 1)
2428 return -ENODEV;
2429
2430 urb = alloc_isoc_urb(hdev, skb);
2431 if (IS_ERR(urb))
2432 return PTR_ERR(urb);
2433
2434 hdev->stat.sco_tx++;
2435 return submit_tx_urb(hdev, urb);
2436 }
2437
2438 return -EILSEQ;
2439}
2440
2441static int btusb_setup_intel_new_get_fw_name(struct intel_version *ver,
2442 struct intel_boot_params *params,
2443 char *fw_name, size_t len,
2444 const char *suffix)
2445{
2446 switch (ver->hw_variant) {
2447 case 0x0b: /* SfP */
2448 case 0x0c: /* WsP */
2449 snprintf(fw_name, len, "intel/ibt-%u-%u.%s",
2450 le16_to_cpu(ver->hw_variant),
2451 le16_to_cpu(params->dev_revid),
2452 suffix);
2453 break;
2454 case 0x11: /* JfP */
2455 case 0x12: /* ThP */
2456 case 0x13: /* HrP */
2457 case 0x14: /* CcP */
2458 snprintf(fw_name, len, "intel/ibt-%u-%u-%u.%s",
2459 le16_to_cpu(ver->hw_variant),
2460 le16_to_cpu(ver->hw_revision),
2461 le16_to_cpu(ver->fw_revision),
2462 suffix);
2463 break;
2464 default:
2465 return -EINVAL;
2466 }
2467
2468 return 0;
2469}
2470
2471static void btusb_setup_intel_newgen_get_fw_name(const struct intel_version_tlv *ver_tlv,
2472 char *fw_name, size_t len,
2473 const char *suffix)
2474{
2475 /* The firmware file name for new generation controllers will be
2476 * ibt-<cnvi_top type+cnvi_top step>-<cnvr_top type+cnvr_top step>
2477 */
2478 snprintf(fw_name, len, "intel/ibt-%04x-%04x.%s",
2479 INTEL_CNVX_TOP_PACK_SWAB(INTEL_CNVX_TOP_TYPE(ver_tlv->cnvi_top),
2480 INTEL_CNVX_TOP_STEP(ver_tlv->cnvi_top)),
2481 INTEL_CNVX_TOP_PACK_SWAB(INTEL_CNVX_TOP_TYPE(ver_tlv->cnvr_top),
2482 INTEL_CNVX_TOP_STEP(ver_tlv->cnvr_top)),
2483 suffix);
2484}
2485
2486static int btusb_download_wait(struct hci_dev *hdev, ktime_t calltime, int msec)
2487{
2488 struct btusb_data *data = hci_get_drvdata(hdev);
2489 ktime_t delta, rettime;
2490 unsigned long long duration;
2491 int err;
2492
2493 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags);
2494
2495 bt_dev_info(hdev, "Waiting for firmware download to complete");
2496
2497 err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING,
2498 TASK_INTERRUPTIBLE,
2499 msecs_to_jiffies(msec));
2500 if (err == -EINTR) {
2501 bt_dev_err(hdev, "Firmware loading interrupted");
2502 return err;
2503 }
2504
2505 if (err) {
2506 bt_dev_err(hdev, "Firmware loading timeout");
2507 return -ETIMEDOUT;
2508 }
2509
2510 if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) {
2511 bt_dev_err(hdev, "Firmware loading failed");
2512 return -ENOEXEC;
2513 }
2514
2515 rettime = ktime_get();
2516 delta = ktime_sub(rettime, calltime);
2517 duration = (unsigned long long)ktime_to_ns(delta) >> 10;
2518
2519 bt_dev_info(hdev, "Firmware loaded in %llu usecs", duration);
2520
2521 return 0;
2522}
2523
2524static int btusb_intel_download_firmware_newgen(struct hci_dev *hdev,
2525 struct intel_version_tlv *ver,
2526 u32 *boot_param)
2527{
2528 const struct firmware *fw;
2529 char fwname[64];
2530 int err;
2531 struct btusb_data *data = hci_get_drvdata(hdev);
2532 ktime_t calltime;
2533
2534 if (!ver || !boot_param)
2535 return -EINVAL;
2536
2537 /* The firmware variant determines if the device is in bootloader
2538 * mode or is running operational firmware. The value 0x03 identifies
2539 * the bootloader and the value 0x23 identifies the operational
2540 * firmware.
2541 *
2542 * When the operational firmware is already present, then only
2543 * the check for valid Bluetooth device address is needed. This
2544 * determines if the device will be added as configured or
2545 * unconfigured controller.
2546 *
2547 * It is not possible to use the Secure Boot Parameters in this
2548 * case since that command is only available in bootloader mode.
2549 */
2550 if (ver->img_type == 0x03) {
2551 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2552 btintel_check_bdaddr(hdev);
2553 }
2554
2555 /* If the OTP has no valid Bluetooth device address, then there will
2556 * also be no valid address for the operational firmware.
2557 */
2558 if (!bacmp(&ver->otp_bd_addr, BDADDR_ANY)) {
2559 bt_dev_info(hdev, "No device address configured");
2560 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
2561 }
2562
2563 btusb_setup_intel_newgen_get_fw_name(ver, fwname, sizeof(fwname), "sfi");
2564 err = firmware_request_nowarn(&fw, fwname, &hdev->dev);
2565 if (err < 0) {
2566 if (!test_bit(BTUSB_BOOTLOADER, &data->flags)) {
2567 /* Firmware has already been loaded */
2568 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags);
2569 return 0;
2570 }
2571
2572 bt_dev_err(hdev, "Failed to load Intel firmware file %s (%d)",
2573 fwname, err);
2574
2575 return err;
2576 }
2577
2578 bt_dev_info(hdev, "Found device firmware: %s", fwname);
2579
2580 if (fw->size < 644) {
2581 bt_dev_err(hdev, "Invalid size of firmware file (%zu)",
2582 fw->size);
2583 err = -EBADF;
2584 goto done;
2585 }
2586
2587 calltime = ktime_get();
2588
2589 set_bit(BTUSB_DOWNLOADING, &data->flags);
2590
2591 /* Start firmware downloading and get boot parameter */
2592 err = btintel_download_firmware_newgen(hdev, ver, fw, boot_param,
2593 INTEL_HW_VARIANT(ver->cnvi_bt),
2594 ver->sbe_type);
2595 if (err < 0) {
2596 if (err == -EALREADY) {
2597 /* Firmware has already been loaded */
2598 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags);
2599 err = 0;
2600 goto done;
2601 }
2602
2603 /* When FW download fails, send Intel Reset to retry
2604 * FW download.
2605 */
2606 btintel_reset_to_bootloader(hdev);
2607 goto done;
2608 }
2609
2610 /* Before switching the device into operational mode and with that
2611 * booting the loaded firmware, wait for the bootloader notification
2612 * that all fragments have been successfully received.
2613 *
2614 * When the event processing receives the notification, then the
2615 * BTUSB_DOWNLOADING flag will be cleared.
2616 *
2617 * The firmware loading should not take longer than 5 seconds
2618 * and thus just timeout if that happens and fail the setup
2619 * of this device.
2620 */
2621 err = btusb_download_wait(hdev, calltime, 5000);
2622 if (err == -ETIMEDOUT)
2623 btintel_reset_to_bootloader(hdev);
2624
2625done:
2626 release_firmware(fw);
2627 return err;
2628}
2629
2630static int btusb_intel_download_firmware(struct hci_dev *hdev,
2631 struct intel_version *ver,
2632 struct intel_boot_params *params,
2633 u32 *boot_param)
2634{
2635 const struct firmware *fw;
2636 char fwname[64];
2637 int err;
2638 struct btusb_data *data = hci_get_drvdata(hdev);
2639 ktime_t calltime;
2640
2641 if (!ver || !params)
2642 return -EINVAL;
2643
2644 /* The firmware variant determines if the device is in bootloader
2645 * mode or is running operational firmware. The value 0x06 identifies
2646 * the bootloader and the value 0x23 identifies the operational
2647 * firmware.
2648 *
2649 * When the operational firmware is already present, then only
2650 * the check for valid Bluetooth device address is needed. This
2651 * determines if the device will be added as configured or
2652 * unconfigured controller.
2653 *
2654 * It is not possible to use the Secure Boot Parameters in this
2655 * case since that command is only available in bootloader mode.
2656 */
2657 if (ver->fw_variant == 0x23) {
2658 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2659 btintel_check_bdaddr(hdev);
2660
2661 /* SfP and WsP don't seem to update the firmware version on file
2662 * so version checking is currently possible.
2663 */
2664 switch (ver->hw_variant) {
2665 case 0x0b: /* SfP */
2666 case 0x0c: /* WsP */
2667 return 0;
2668 }
2669
2670 /* Proceed to download to check if the version matches */
2671 goto download;
2672 }
2673
2674 /* Read the secure boot parameters to identify the operating
2675 * details of the bootloader.
2676 */
2677 err = btintel_read_boot_params(hdev, params);
2678 if (err)
2679 return err;
2680
2681 /* It is required that every single firmware fragment is acknowledged
2682 * with a command complete event. If the boot parameters indicate
2683 * that this bootloader does not send them, then abort the setup.
2684 */
2685 if (params->limited_cce != 0x00) {
2686 bt_dev_err(hdev, "Unsupported Intel firmware loading method (%u)",
2687 params->limited_cce);
2688 return -EINVAL;
2689 }
2690
2691 /* If the OTP has no valid Bluetooth device address, then there will
2692 * also be no valid address for the operational firmware.
2693 */
2694 if (!bacmp(¶ms->otp_bdaddr, BDADDR_ANY)) {
2695 bt_dev_info(hdev, "No device address configured");
2696 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
2697 }
2698
2699download:
2700 /* With this Intel bootloader only the hardware variant and device
2701 * revision information are used to select the right firmware for SfP
2702 * and WsP.
2703 *
2704 * The firmware filename is ibt-<hw_variant>-<dev_revid>.sfi.
2705 *
2706 * Currently the supported hardware variants are:
2707 * 11 (0x0b) for iBT3.0 (LnP/SfP)
2708 * 12 (0x0c) for iBT3.5 (WsP)
2709 *
2710 * For ThP/JfP and for future SKU's, the FW name varies based on HW
2711 * variant, HW revision and FW revision, as these are dependent on CNVi
2712 * and RF Combination.
2713 *
2714 * 17 (0x11) for iBT3.5 (JfP)
2715 * 18 (0x12) for iBT3.5 (ThP)
2716 *
2717 * The firmware file name for these will be
2718 * ibt-<hw_variant>-<hw_revision>-<fw_revision>.sfi.
2719 *
2720 */
2721 err = btusb_setup_intel_new_get_fw_name(ver, params, fwname,
2722 sizeof(fwname), "sfi");
2723 if (err < 0) {
2724 if (!test_bit(BTUSB_BOOTLOADER, &data->flags)) {
2725 /* Firmware has already been loaded */
2726 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags);
2727 return 0;
2728 }
2729
2730 bt_dev_err(hdev, "Unsupported Intel firmware naming");
2731 return -EINVAL;
2732 }
2733
2734 err = firmware_request_nowarn(&fw, fwname, &hdev->dev);
2735 if (err < 0) {
2736 if (!test_bit(BTUSB_BOOTLOADER, &data->flags)) {
2737 /* Firmware has already been loaded */
2738 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags);
2739 return 0;
2740 }
2741
2742 bt_dev_err(hdev, "Failed to load Intel firmware file %s (%d)",
2743 fwname, err);
2744 return err;
2745 }
2746
2747 bt_dev_info(hdev, "Found device firmware: %s", fwname);
2748
2749 if (fw->size < 644) {
2750 bt_dev_err(hdev, "Invalid size of firmware file (%zu)",
2751 fw->size);
2752 err = -EBADF;
2753 goto done;
2754 }
2755
2756 calltime = ktime_get();
2757
2758 set_bit(BTUSB_DOWNLOADING, &data->flags);
2759
2760 /* Start firmware downloading and get boot parameter */
2761 err = btintel_download_firmware(hdev, ver, fw, boot_param);
2762 if (err < 0) {
2763 if (err == -EALREADY) {
2764 /* Firmware has already been loaded */
2765 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags);
2766 err = 0;
2767 goto done;
2768 }
2769
2770 /* When FW download fails, send Intel Reset to retry
2771 * FW download.
2772 */
2773 btintel_reset_to_bootloader(hdev);
2774 goto done;
2775 }
2776
2777 /* Before switching the device into operational mode and with that
2778 * booting the loaded firmware, wait for the bootloader notification
2779 * that all fragments have been successfully received.
2780 *
2781 * When the event processing receives the notification, then the
2782 * BTUSB_DOWNLOADING flag will be cleared.
2783 *
2784 * The firmware loading should not take longer than 5 seconds
2785 * and thus just timeout if that happens and fail the setup
2786 * of this device.
2787 */
2788 err = btusb_download_wait(hdev, calltime, 5000);
2789 if (err == -ETIMEDOUT)
2790 btintel_reset_to_bootloader(hdev);
2791
2792done:
2793 release_firmware(fw);
2794 return err;
2795}
2796
2797static int btusb_boot_wait(struct hci_dev *hdev, ktime_t calltime, int msec)
2798{
2799 struct btusb_data *data = hci_get_drvdata(hdev);
2800 ktime_t delta, rettime;
2801 unsigned long long duration;
2802 int err;
2803
2804 bt_dev_info(hdev, "Waiting for device to boot");
2805
2806 err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING,
2807 TASK_INTERRUPTIBLE,
2808 msecs_to_jiffies(msec));
2809 if (err == -EINTR) {
2810 bt_dev_err(hdev, "Device boot interrupted");
2811 return -EINTR;
2812 }
2813
2814 if (err) {
2815 bt_dev_err(hdev, "Device boot timeout");
2816 return -ETIMEDOUT;
2817 }
2818
2819 rettime = ktime_get();
2820 delta = ktime_sub(rettime, calltime);
2821 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2822
2823 bt_dev_info(hdev, "Device booted in %llu usecs", duration);
2824
2825 return 0;
2826}
2827
2828static int btusb_intel_boot(struct hci_dev *hdev, u32 boot_addr)
2829{
2830 struct btusb_data *data = hci_get_drvdata(hdev);
2831 ktime_t calltime;
2832 int err;
2833
2834 calltime = ktime_get();
2835
2836 set_bit(BTUSB_BOOTING, &data->flags);
2837
2838 err = btintel_send_intel_reset(hdev, boot_addr);
2839 if (err) {
2840 bt_dev_err(hdev, "Intel Soft Reset failed (%d)", err);
2841 btintel_reset_to_bootloader(hdev);
2842 return err;
2843 }
2844
2845 /* The bootloader will not indicate when the device is ready. This
2846 * is done by the operational firmware sending bootup notification.
2847 *
2848 * Booting into operational firmware should not take longer than
2849 * 1 second. However if that happens, then just fail the setup
2850 * since something went wrong.
2851 */
2852 err = btusb_boot_wait(hdev, calltime, 1000);
2853 if (err == -ETIMEDOUT)
2854 btintel_reset_to_bootloader(hdev);
2855
2856 return err;
2857}
2858
2859static int btusb_setup_intel_new(struct hci_dev *hdev)
2860{
2861 struct btusb_data *data = hci_get_drvdata(hdev);
2862 struct intel_version ver;
2863 struct intel_boot_params params;
2864 u32 boot_param;
2865 char ddcname[64];
2866 int err;
2867 struct intel_debug_features features;
2868
2869 BT_DBG("%s", hdev->name);
2870
2871 /* Set the default boot parameter to 0x0 and it is updated to
2872 * SKU specific boot parameter after reading Intel_Write_Boot_Params
2873 * command while downloading the firmware.
2874 */
2875 boot_param = 0x00000000;
2876
2877 /* Read the Intel version information to determine if the device
2878 * is in bootloader mode or if it already has operational firmware
2879 * loaded.
2880 */
2881 err = btintel_read_version(hdev, &ver);
2882 if (err) {
2883 bt_dev_err(hdev, "Intel Read version failed (%d)", err);
2884 btintel_reset_to_bootloader(hdev);
2885 return err;
2886 }
2887
2888 err = btintel_version_info(hdev, &ver);
2889 if (err)
2890 return err;
2891
2892 err = btusb_intel_download_firmware(hdev, &ver, ¶ms, &boot_param);
2893 if (err)
2894 return err;
2895
2896 /* controller is already having an operational firmware */
2897 if (ver.fw_variant == 0x23)
2898 goto finish;
2899
2900 err = btusb_intel_boot(hdev, boot_param);
2901 if (err)
2902 return err;
2903
2904 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2905
2906 err = btusb_setup_intel_new_get_fw_name(&ver, ¶ms, ddcname,
2907 sizeof(ddcname), "ddc");
2908
2909 if (err < 0) {
2910 bt_dev_err(hdev, "Unsupported Intel firmware naming");
2911 } else {
2912 /* Once the device is running in operational mode, it needs to
2913 * apply the device configuration (DDC) parameters.
2914 *
2915 * The device can work without DDC parameters, so even if it
2916 * fails to load the file, no need to fail the setup.
2917 */
2918 btintel_load_ddc_config(hdev, ddcname);
2919 }
2920
2921 /* Read the Intel supported features and if new exception formats
2922 * supported, need to load the additional DDC config to enable.
2923 */
2924 err = btintel_read_debug_features(hdev, &features);
2925 if (!err) {
2926 /* Set DDC mask for available debug features */
2927 btintel_set_debug_features(hdev, &features);
2928 }
2929
2930 /* Read the Intel version information after loading the FW */
2931 err = btintel_read_version(hdev, &ver);
2932 if (err)
2933 return err;
2934
2935 btintel_version_info(hdev, &ver);
2936
2937finish:
2938 /* All Intel controllers that support the Microsoft vendor
2939 * extension are using 0xFC1E for VsMsftOpCode.
2940 */
2941 switch (ver.hw_variant) {
2942 case 0x11: /* JfP */
2943 case 0x12: /* ThP */
2944 case 0x13: /* HrP */
2945 case 0x14: /* CcP */
2946 hci_set_msft_opcode(hdev, 0xFC1E);
2947 break;
2948 }
2949
2950 /* Set the event mask for Intel specific vendor events. This enables
2951 * a few extra events that are useful during general operation. It
2952 * does not enable any debugging related events.
2953 *
2954 * The device will function correctly without these events enabled
2955 * and thus no need to fail the setup.
2956 */
2957 btintel_set_event_mask(hdev, false);
2958
2959 return 0;
2960}
2961
2962static int btusb_setup_intel_newgen(struct hci_dev *hdev)
2963{
2964 struct btusb_data *data = hci_get_drvdata(hdev);
2965 u32 boot_param;
2966 char ddcname[64];
2967 int err;
2968 struct intel_debug_features features;
2969 struct intel_version_tlv version;
2970
2971 bt_dev_dbg(hdev, "");
2972
2973 /* Set the default boot parameter to 0x0 and it is updated to
2974 * SKU specific boot parameter after reading Intel_Write_Boot_Params
2975 * command while downloading the firmware.
2976 */
2977 boot_param = 0x00000000;
2978
2979 /* Read the Intel version information to determine if the device
2980 * is in bootloader mode or if it already has operational firmware
2981 * loaded.
2982 */
2983 err = btintel_read_version_tlv(hdev, &version);
2984 if (err) {
2985 bt_dev_err(hdev, "Intel Read version failed (%d)", err);
2986 btintel_reset_to_bootloader(hdev);
2987 return err;
2988 }
2989
2990 err = btintel_version_info_tlv(hdev, &version);
2991 if (err)
2992 return err;
2993
2994 err = btusb_intel_download_firmware_newgen(hdev, &version, &boot_param);
2995 if (err)
2996 return err;
2997
2998 /* check if controller is already having an operational firmware */
2999 if (version.img_type == 0x03)
3000 goto finish;
3001
3002 err = btusb_intel_boot(hdev, boot_param);
3003 if (err)
3004 return err;
3005
3006 clear_bit(BTUSB_BOOTLOADER, &data->flags);
3007
3008 btusb_setup_intel_newgen_get_fw_name(&version, ddcname, sizeof(ddcname),
3009 "ddc");
3010 /* Once the device is running in operational mode, it needs to
3011 * apply the device configuration (DDC) parameters.
3012 *
3013 * The device can work without DDC parameters, so even if it
3014 * fails to load the file, no need to fail the setup.
3015 */
3016 btintel_load_ddc_config(hdev, ddcname);
3017
3018 /* Read the Intel supported features and if new exception formats
3019 * supported, need to load the additional DDC config to enable.
3020 */
3021 err = btintel_read_debug_features(hdev, &features);
3022 if (!err) {
3023 /* Set DDC mask for available debug features */
3024 btintel_set_debug_features(hdev, &features);
3025 }
3026
3027 /* Read the Intel version information after loading the FW */
3028 err = btintel_read_version_tlv(hdev, &version);
3029 if (err)
3030 return err;
3031
3032 btintel_version_info_tlv(hdev, &version);
3033
3034finish:
3035 /* Set the event mask for Intel specific vendor events. This enables
3036 * a few extra events that are useful during general operation. It
3037 * does not enable any debugging related events.
3038 *
3039 * The device will function correctly without these events enabled
3040 * and thus no need to fail the setup.
3041 */
3042 btintel_set_event_mask(hdev, false);
3043
3044 return 0;
3045}
3046static int btusb_shutdown_intel(struct hci_dev *hdev)
3047{
3048 struct sk_buff *skb;
3049 long ret;
3050
3051 /* In the shutdown sequence where Bluetooth is turned off followed
3052 * by WiFi being turned off, turning WiFi back on causes issue with
3053 * the RF calibration.
3054 *
3055 * To ensure that any RF activity has been stopped, issue HCI Reset
3056 * command to clear all ongoing activity including advertising,
3057 * scanning etc.
3058 */
3059 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
3060 if (IS_ERR(skb)) {
3061 ret = PTR_ERR(skb);
3062 bt_dev_err(hdev, "HCI reset during shutdown failed");
3063 return ret;
3064 }
3065 kfree_skb(skb);
3066
3067 /* Some platforms have an issue with BT LED when the interface is
3068 * down or BT radio is turned off, which takes 5 seconds to BT LED
3069 * goes off. This command turns off the BT LED immediately.
3070 */
3071 skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT);
3072 if (IS_ERR(skb)) {
3073 ret = PTR_ERR(skb);
3074 bt_dev_err(hdev, "turning off Intel device LED failed");
3075 return ret;
3076 }
3077 kfree_skb(skb);
3078
3079 return 0;
3080}
3081
3082static int btusb_shutdown_intel_new(struct hci_dev *hdev)
3083{
3084 struct sk_buff *skb;
3085
3086 /* Send HCI Reset to the controller to stop any BT activity which
3087 * were triggered. This will help to save power and maintain the
3088 * sync b/w Host and controller
3089 */
3090 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
3091 if (IS_ERR(skb)) {
3092 bt_dev_err(hdev, "HCI reset during shutdown failed");
3093 return PTR_ERR(skb);
3094 }
3095 kfree_skb(skb);
3096
3097 return 0;
3098}
3099
3100#define FIRMWARE_MT7663 "mediatek/mt7663pr2h.bin"
3101#define FIRMWARE_MT7668 "mediatek/mt7668pr2h.bin"
3102
3103#define HCI_WMT_MAX_EVENT_SIZE 64
3104/* It is for mt79xx download rom patch*/
3105#define MTK_FW_ROM_PATCH_HEADER_SIZE 32
3106#define MTK_FW_ROM_PATCH_GD_SIZE 64
3107#define MTK_FW_ROM_PATCH_SEC_MAP_SIZE 64
3108#define MTK_SEC_MAP_COMMON_SIZE 12
3109#define MTK_SEC_MAP_NEED_SEND_SIZE 52
3110
3111enum {
3112 BTMTK_WMT_PATCH_DWNLD = 0x1,
3113 BTMTK_WMT_FUNC_CTRL = 0x6,
3114 BTMTK_WMT_RST = 0x7,
3115 BTMTK_WMT_SEMAPHORE = 0x17,
3116};
3117
3118enum {
3119 BTMTK_WMT_INVALID,
3120 BTMTK_WMT_PATCH_UNDONE,
3121 BTMTK_WMT_PATCH_PROGRESS,
3122 BTMTK_WMT_PATCH_DONE,
3123 BTMTK_WMT_ON_UNDONE,
3124 BTMTK_WMT_ON_DONE,
3125 BTMTK_WMT_ON_PROGRESS,
3126};
3127
3128struct btmtk_wmt_hdr {
3129 u8 dir;
3130 u8 op;
3131 __le16 dlen;
3132 u8 flag;
3133} __packed;
3134
3135struct btmtk_hci_wmt_cmd {
3136 struct btmtk_wmt_hdr hdr;
3137 u8 data[];
3138} __packed;
3139
3140struct btmtk_hci_wmt_evt {
3141 struct hci_event_hdr hhdr;
3142 struct btmtk_wmt_hdr whdr;
3143} __packed;
3144
3145struct btmtk_hci_wmt_evt_funcc {
3146 struct btmtk_hci_wmt_evt hwhdr;
3147 __be16 status;
3148} __packed;
3149
3150struct btmtk_tci_sleep {
3151 u8 mode;
3152 __le16 duration;
3153 __le16 host_duration;
3154 u8 host_wakeup_pin;
3155 u8 time_compensation;
3156} __packed;
3157
3158struct btmtk_hci_wmt_params {
3159 u8 op;
3160 u8 flag;
3161 u16 dlen;
3162 const void *data;
3163 u32 *status;
3164};
3165
3166struct btmtk_patch_header {
3167 u8 datetime[16];
3168 u8 platform[4];
3169 __le16 hwver;
3170 __le16 swver;
3171 __le32 magicnum;
3172} __packed;
3173
3174struct btmtk_global_desc {
3175 __le32 patch_ver;
3176 __le32 sub_sys;
3177 __le32 feature_opt;
3178 __le32 section_num;
3179} __packed;
3180
3181struct btmtk_section_map {
3182 __le32 sectype;
3183 __le32 secoffset;
3184 __le32 secsize;
3185 union {
3186 __le32 u4SecSpec[13];
3187 struct {
3188 __le32 dlAddr;
3189 __le32 dlsize;
3190 __le32 seckeyidx;
3191 __le32 alignlen;
3192 __le32 sectype;
3193 __le32 dlmodecrctype;
3194 __le32 crc;
3195 __le32 reserved[6];
3196 } bin_info_spec;
3197 };
3198} __packed;
3199
3200static void btusb_mtk_wmt_recv(struct urb *urb)
3201{
3202 struct hci_dev *hdev = urb->context;
3203 struct btusb_data *data = hci_get_drvdata(hdev);
3204 struct hci_event_hdr *hdr;
3205 struct sk_buff *skb;
3206 int err;
3207
3208 if (urb->status == 0 && urb->actual_length > 0) {
3209 hdev->stat.byte_rx += urb->actual_length;
3210
3211 /* WMT event shouldn't be fragmented and the size should be
3212 * less than HCI_WMT_MAX_EVENT_SIZE.
3213 */
3214 skb = bt_skb_alloc(HCI_WMT_MAX_EVENT_SIZE, GFP_ATOMIC);
3215 if (!skb) {
3216 hdev->stat.err_rx++;
3217 return;
3218 }
3219
3220 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
3221 skb_put_data(skb, urb->transfer_buffer, urb->actual_length);
3222
3223 hdr = (void *)skb->data;
3224 /* Fix up the vendor event id with 0xff for vendor specific
3225 * instead of 0xe4 so that event send via monitoring socket can
3226 * be parsed properly.
3227 */
3228 hdr->evt = 0xff;
3229
3230 /* When someone waits for the WMT event, the skb is being cloned
3231 * and being processed the events from there then.
3232 */
3233 if (test_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags)) {
3234 data->evt_skb = skb_clone(skb, GFP_ATOMIC);
3235 if (!data->evt_skb) {
3236 kfree_skb(skb);
3237 return;
3238 }
3239 }
3240
3241 err = hci_recv_frame(hdev, skb);
3242 if (err < 0) {
3243 kfree_skb(data->evt_skb);
3244 data->evt_skb = NULL;
3245 return;
3246 }
3247
3248 if (test_and_clear_bit(BTUSB_TX_WAIT_VND_EVT,
3249 &data->flags)) {
3250 /* Barrier to sync with other CPUs */
3251 smp_mb__after_atomic();
3252 wake_up_bit(&data->flags,
3253 BTUSB_TX_WAIT_VND_EVT);
3254 }
3255 return;
3256 } else if (urb->status == -ENOENT) {
3257 /* Avoid suspend failed when usb_kill_urb */
3258 return;
3259 }
3260
3261 usb_mark_last_busy(data->udev);
3262
3263 /* The URB complete handler is still called with urb->actual_length = 0
3264 * when the event is not available, so we should keep re-submitting
3265 * URB until WMT event returns, Also, It's necessary to wait some time
3266 * between the two consecutive control URBs to relax the target device
3267 * to generate the event. Otherwise, the WMT event cannot return from
3268 * the device successfully.
3269 */
3270 udelay(500);
3271
3272 usb_anchor_urb(urb, &data->ctrl_anchor);
3273 err = usb_submit_urb(urb, GFP_ATOMIC);
3274 if (err < 0) {
3275 /* -EPERM: urb is being killed;
3276 * -ENODEV: device got disconnected
3277 */
3278 if (err != -EPERM && err != -ENODEV)
3279 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
3280 urb, -err);
3281 usb_unanchor_urb(urb);
3282 }
3283}
3284
3285static int btusb_mtk_submit_wmt_recv_urb(struct hci_dev *hdev)
3286{
3287 struct btusb_data *data = hci_get_drvdata(hdev);
3288 struct usb_ctrlrequest *dr;
3289 unsigned char *buf;
3290 int err, size = 64;
3291 unsigned int pipe;
3292 struct urb *urb;
3293
3294 urb = usb_alloc_urb(0, GFP_KERNEL);
3295 if (!urb)
3296 return -ENOMEM;
3297
3298 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
3299 if (!dr) {
3300 usb_free_urb(urb);
3301 return -ENOMEM;
3302 }
3303
3304 dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_IN;
3305 dr->bRequest = 1;
3306 dr->wIndex = cpu_to_le16(0);
3307 dr->wValue = cpu_to_le16(48);
3308 dr->wLength = cpu_to_le16(size);
3309
3310 buf = kmalloc(size, GFP_KERNEL);
3311 if (!buf) {
3312 kfree(dr);
3313 usb_free_urb(urb);
3314 return -ENOMEM;
3315 }
3316
3317 pipe = usb_rcvctrlpipe(data->udev, 0);
3318
3319 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
3320 buf, size, btusb_mtk_wmt_recv, hdev);
3321
3322 urb->transfer_flags |= URB_FREE_BUFFER;
3323
3324 usb_anchor_urb(urb, &data->ctrl_anchor);
3325 err = usb_submit_urb(urb, GFP_KERNEL);
3326 if (err < 0) {
3327 if (err != -EPERM && err != -ENODEV)
3328 bt_dev_err(hdev, "urb %p submission failed (%d)",
3329 urb, -err);
3330 usb_unanchor_urb(urb);
3331 }
3332
3333 usb_free_urb(urb);
3334
3335 return err;
3336}
3337
3338static int btusb_mtk_hci_wmt_sync(struct hci_dev *hdev,
3339 struct btmtk_hci_wmt_params *wmt_params)
3340{
3341 struct btusb_data *data = hci_get_drvdata(hdev);
3342 struct btmtk_hci_wmt_evt_funcc *wmt_evt_funcc;
3343 u32 hlen, status = BTMTK_WMT_INVALID;
3344 struct btmtk_hci_wmt_evt *wmt_evt;
3345 struct btmtk_hci_wmt_cmd *wc;
3346 struct btmtk_wmt_hdr *hdr;
3347 int err;
3348
3349 /* Send the WMT command and wait until the WMT event returns */
3350 hlen = sizeof(*hdr) + wmt_params->dlen;
3351 if (hlen > 255)
3352 return -EINVAL;
3353
3354 wc = kzalloc(hlen, GFP_KERNEL);
3355 if (!wc)
3356 return -ENOMEM;
3357
3358 hdr = &wc->hdr;
3359 hdr->dir = 1;
3360 hdr->op = wmt_params->op;
3361 hdr->dlen = cpu_to_le16(wmt_params->dlen + 1);
3362 hdr->flag = wmt_params->flag;
3363 memcpy(wc->data, wmt_params->data, wmt_params->dlen);
3364
3365 set_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
3366
3367 err = __hci_cmd_send(hdev, 0xfc6f, hlen, wc);
3368
3369 if (err < 0) {
3370 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
3371 goto err_free_wc;
3372 }
3373
3374 /* Submit control IN URB on demand to process the WMT event */
3375 err = btusb_mtk_submit_wmt_recv_urb(hdev);
3376 if (err < 0)
3377 goto err_free_wc;
3378
3379 /* The vendor specific WMT commands are all answered by a vendor
3380 * specific event and will have the Command Status or Command
3381 * Complete as with usual HCI command flow control.
3382 *
3383 * After sending the command, wait for BTUSB_TX_WAIT_VND_EVT
3384 * state to be cleared. The driver specific event receive routine
3385 * will clear that state and with that indicate completion of the
3386 * WMT command.
3387 */
3388 err = wait_on_bit_timeout(&data->flags, BTUSB_TX_WAIT_VND_EVT,
3389 TASK_INTERRUPTIBLE, HCI_INIT_TIMEOUT);
3390 if (err == -EINTR) {
3391 bt_dev_err(hdev, "Execution of wmt command interrupted");
3392 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
3393 goto err_free_wc;
3394 }
3395
3396 if (err) {
3397 bt_dev_err(hdev, "Execution of wmt command timed out");
3398 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
3399 err = -ETIMEDOUT;
3400 goto err_free_wc;
3401 }
3402
3403 /* Parse and handle the return WMT event */
3404 wmt_evt = (struct btmtk_hci_wmt_evt *)data->evt_skb->data;
3405 if (wmt_evt->whdr.op != hdr->op) {
3406 bt_dev_err(hdev, "Wrong op received %d expected %d",
3407 wmt_evt->whdr.op, hdr->op);
3408 err = -EIO;
3409 goto err_free_skb;
3410 }
3411
3412 switch (wmt_evt->whdr.op) {
3413 case BTMTK_WMT_SEMAPHORE:
3414 if (wmt_evt->whdr.flag == 2)
3415 status = BTMTK_WMT_PATCH_UNDONE;
3416 else
3417 status = BTMTK_WMT_PATCH_DONE;
3418 break;
3419 case BTMTK_WMT_FUNC_CTRL:
3420 wmt_evt_funcc = (struct btmtk_hci_wmt_evt_funcc *)wmt_evt;
3421 if (be16_to_cpu(wmt_evt_funcc->status) == 0x404)
3422 status = BTMTK_WMT_ON_DONE;
3423 else if (be16_to_cpu(wmt_evt_funcc->status) == 0x420)
3424 status = BTMTK_WMT_ON_PROGRESS;
3425 else
3426 status = BTMTK_WMT_ON_UNDONE;
3427 break;
3428 case BTMTK_WMT_PATCH_DWNLD:
3429 if (wmt_evt->whdr.flag == 2)
3430 status = BTMTK_WMT_PATCH_DONE;
3431 else if (wmt_evt->whdr.flag == 1)
3432 status = BTMTK_WMT_PATCH_PROGRESS;
3433 else
3434 status = BTMTK_WMT_PATCH_UNDONE;
3435 break;
3436 }
3437
3438 if (wmt_params->status)
3439 *wmt_params->status = status;
3440
3441err_free_skb:
3442 kfree_skb(data->evt_skb);
3443 data->evt_skb = NULL;
3444err_free_wc:
3445 kfree(wc);
3446 return err;
3447}
3448
3449static int btusb_mtk_setup_firmware_79xx(struct hci_dev *hdev, const char *fwname)
3450{
3451 struct btmtk_hci_wmt_params wmt_params;
3452 struct btmtk_global_desc *globaldesc = NULL;
3453 struct btmtk_section_map *sectionmap;
3454 const struct firmware *fw;
3455 const u8 *fw_ptr;
3456 const u8 *fw_bin_ptr;
3457 int err, dlen, i, status;
3458 u8 flag, first_block, retry;
3459 u32 section_num, dl_size, section_offset;
3460 u8 cmd[64];
3461
3462 err = request_firmware(&fw, fwname, &hdev->dev);
3463 if (err < 0) {
3464 bt_dev_err(hdev, "Failed to load firmware file (%d)", err);
3465 return err;
3466 }
3467
3468 fw_ptr = fw->data;
3469 fw_bin_ptr = fw_ptr;
3470 globaldesc = (struct btmtk_global_desc *)(fw_ptr + MTK_FW_ROM_PATCH_HEADER_SIZE);
3471 section_num = le32_to_cpu(globaldesc->section_num);
3472
3473 for (i = 0; i < section_num; i++) {
3474 first_block = 1;
3475 fw_ptr = fw_bin_ptr;
3476 sectionmap = (struct btmtk_section_map *)(fw_ptr + MTK_FW_ROM_PATCH_HEADER_SIZE +
3477 MTK_FW_ROM_PATCH_GD_SIZE + MTK_FW_ROM_PATCH_SEC_MAP_SIZE * i);
3478
3479 section_offset = le32_to_cpu(sectionmap->secoffset);
3480 dl_size = le32_to_cpu(sectionmap->bin_info_spec.dlsize);
3481
3482 if (dl_size > 0) {
3483 retry = 20;
3484 while (retry > 0) {
3485 cmd[0] = 0; /* 0 means legacy dl mode. */
3486 memcpy(cmd + 1,
3487 fw_ptr + MTK_FW_ROM_PATCH_HEADER_SIZE +
3488 MTK_FW_ROM_PATCH_GD_SIZE + MTK_FW_ROM_PATCH_SEC_MAP_SIZE * i +
3489 MTK_SEC_MAP_COMMON_SIZE,
3490 MTK_SEC_MAP_NEED_SEND_SIZE + 1);
3491
3492 wmt_params.op = BTMTK_WMT_PATCH_DWNLD;
3493 wmt_params.status = &status;
3494 wmt_params.flag = 0;
3495 wmt_params.dlen = MTK_SEC_MAP_NEED_SEND_SIZE + 1;
3496 wmt_params.data = &cmd;
3497
3498 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3499 if (err < 0) {
3500 bt_dev_err(hdev, "Failed to send wmt patch dwnld (%d)",
3501 err);
3502 goto err_release_fw;
3503 }
3504
3505 if (status == BTMTK_WMT_PATCH_UNDONE) {
3506 break;
3507 } else if (status == BTMTK_WMT_PATCH_PROGRESS) {
3508 msleep(100);
3509 retry--;
3510 } else if (status == BTMTK_WMT_PATCH_DONE) {
3511 goto next_section;
3512 } else {
3513 bt_dev_err(hdev, "Failed wmt patch dwnld status (%d)",
3514 status);
3515 goto err_release_fw;
3516 }
3517 }
3518
3519 fw_ptr += section_offset;
3520 wmt_params.op = BTMTK_WMT_PATCH_DWNLD;
3521 wmt_params.status = NULL;
3522
3523 while (dl_size > 0) {
3524 dlen = min_t(int, 250, dl_size);
3525 if (first_block == 1) {
3526 flag = 1;
3527 first_block = 0;
3528 } else if (dl_size - dlen <= 0) {
3529 flag = 3;
3530 } else {
3531 flag = 2;
3532 }
3533
3534 wmt_params.flag = flag;
3535 wmt_params.dlen = dlen;
3536 wmt_params.data = fw_ptr;
3537
3538 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3539 if (err < 0) {
3540 bt_dev_err(hdev, "Failed to send wmt patch dwnld (%d)",
3541 err);
3542 goto err_release_fw;
3543 }
3544
3545 dl_size -= dlen;
3546 fw_ptr += dlen;
3547 }
3548 }
3549next_section:
3550 continue;
3551 }
3552 /* Wait a few moments for firmware activation done */
3553 usleep_range(100000, 120000);
3554
3555err_release_fw:
3556 release_firmware(fw);
3557
3558 return err;
3559}
3560
3561static int btusb_mtk_setup_firmware(struct hci_dev *hdev, const char *fwname)
3562{
3563 struct btmtk_hci_wmt_params wmt_params;
3564 const struct firmware *fw;
3565 const u8 *fw_ptr;
3566 size_t fw_size;
3567 int err, dlen;
3568 u8 flag, param;
3569
3570 err = request_firmware(&fw, fwname, &hdev->dev);
3571 if (err < 0) {
3572 bt_dev_err(hdev, "Failed to load firmware file (%d)", err);
3573 return err;
3574 }
3575
3576 /* Power on data RAM the firmware relies on. */
3577 param = 1;
3578 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3579 wmt_params.flag = 3;
3580 wmt_params.dlen = sizeof(param);
3581 wmt_params.data = ¶m;
3582 wmt_params.status = NULL;
3583
3584 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3585 if (err < 0) {
3586 bt_dev_err(hdev, "Failed to power on data RAM (%d)", err);
3587 goto err_release_fw;
3588 }
3589
3590 fw_ptr = fw->data;
3591 fw_size = fw->size;
3592
3593 /* The size of patch header is 30 bytes, should be skip */
3594 if (fw_size < 30) {
3595 err = -EINVAL;
3596 goto err_release_fw;
3597 }
3598
3599 fw_size -= 30;
3600 fw_ptr += 30;
3601 flag = 1;
3602
3603 wmt_params.op = BTMTK_WMT_PATCH_DWNLD;
3604 wmt_params.status = NULL;
3605
3606 while (fw_size > 0) {
3607 dlen = min_t(int, 250, fw_size);
3608
3609 /* Tell device the position in sequence */
3610 if (fw_size - dlen <= 0)
3611 flag = 3;
3612 else if (fw_size < fw->size - 30)
3613 flag = 2;
3614
3615 wmt_params.flag = flag;
3616 wmt_params.dlen = dlen;
3617 wmt_params.data = fw_ptr;
3618
3619 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3620 if (err < 0) {
3621 bt_dev_err(hdev, "Failed to send wmt patch dwnld (%d)",
3622 err);
3623 goto err_release_fw;
3624 }
3625
3626 fw_size -= dlen;
3627 fw_ptr += dlen;
3628 }
3629
3630 wmt_params.op = BTMTK_WMT_RST;
3631 wmt_params.flag = 4;
3632 wmt_params.dlen = 0;
3633 wmt_params.data = NULL;
3634 wmt_params.status = NULL;
3635
3636 /* Activate funciton the firmware providing to */
3637 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3638 if (err < 0) {
3639 bt_dev_err(hdev, "Failed to send wmt rst (%d)", err);
3640 goto err_release_fw;
3641 }
3642
3643 /* Wait a few moments for firmware activation done */
3644 usleep_range(10000, 12000);
3645
3646err_release_fw:
3647 release_firmware(fw);
3648
3649 return err;
3650}
3651
3652static int btusb_mtk_func_query(struct hci_dev *hdev)
3653{
3654 struct btmtk_hci_wmt_params wmt_params;
3655 int status, err;
3656 u8 param = 0;
3657
3658 /* Query whether the function is enabled */
3659 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3660 wmt_params.flag = 4;
3661 wmt_params.dlen = sizeof(param);
3662 wmt_params.data = ¶m;
3663 wmt_params.status = &status;
3664
3665 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3666 if (err < 0) {
3667 bt_dev_err(hdev, "Failed to query function status (%d)", err);
3668 return err;
3669 }
3670
3671 return status;
3672}
3673
3674static int btusb_mtk_reg_read(struct btusb_data *data, u32 reg, u32 *val)
3675{
3676 int pipe, err, size = sizeof(u32);
3677 void *buf;
3678
3679 buf = kzalloc(size, GFP_KERNEL);
3680 if (!buf)
3681 return -ENOMEM;
3682
3683 pipe = usb_rcvctrlpipe(data->udev, 0);
3684 err = usb_control_msg(data->udev, pipe, 0x63,
3685 USB_TYPE_VENDOR | USB_DIR_IN,
3686 reg >> 16, reg & 0xffff,
3687 buf, size, USB_CTRL_SET_TIMEOUT);
3688 if (err < 0)
3689 goto err_free_buf;
3690
3691 *val = get_unaligned_le32(buf);
3692
3693err_free_buf:
3694 kfree(buf);
3695
3696 return err;
3697}
3698
3699static int btusb_mtk_id_get(struct btusb_data *data, u32 reg, u32 *id)
3700{
3701 return btusb_mtk_reg_read(data, reg, id);
3702}
3703
3704static int btusb_mtk_setup(struct hci_dev *hdev)
3705{
3706 struct btusb_data *data = hci_get_drvdata(hdev);
3707 struct btmtk_hci_wmt_params wmt_params;
3708 ktime_t calltime, delta, rettime;
3709 struct btmtk_tci_sleep tci_sleep;
3710 unsigned long long duration;
3711 struct sk_buff *skb;
3712 const char *fwname;
3713 int err, status;
3714 u32 dev_id;
3715 char fw_bin_name[64];
3716 u32 fw_version = 0;
3717 u8 param;
3718
3719 calltime = ktime_get();
3720
3721 err = btusb_mtk_id_get(data, 0x80000008, &dev_id);
3722 if (err < 0) {
3723 bt_dev_err(hdev, "Failed to get device id (%d)", err);
3724 return err;
3725 }
3726
3727 if (!dev_id) {
3728 err = btusb_mtk_id_get(data, 0x70010200, &dev_id);
3729 if (err < 0) {
3730 bt_dev_err(hdev, "Failed to get device id (%d)", err);
3731 return err;
3732 }
3733 err = btusb_mtk_id_get(data, 0x80021004, &fw_version);
3734 if (err < 0) {
3735 bt_dev_err(hdev, "Failed to get fw version (%d)", err);
3736 return err;
3737 }
3738 }
3739
3740 switch (dev_id) {
3741 case 0x7663:
3742 fwname = FIRMWARE_MT7663;
3743 break;
3744 case 0x7668:
3745 fwname = FIRMWARE_MT7668;
3746 break;
3747 case 0x7961:
3748 snprintf(fw_bin_name, sizeof(fw_bin_name),
3749 "mediatek/BT_RAM_CODE_MT%04x_1_%x_hdr.bin",
3750 dev_id & 0xffff, (fw_version & 0xff) + 1);
3751 err = btusb_mtk_setup_firmware_79xx(hdev, fw_bin_name);
3752
3753 /* Enable Bluetooth protocol */
3754 param = 1;
3755 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3756 wmt_params.flag = 0;
3757 wmt_params.dlen = sizeof(param);
3758 wmt_params.data = ¶m;
3759 wmt_params.status = NULL;
3760
3761 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3762 if (err < 0) {
3763 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3764 return err;
3765 }
3766 goto done;
3767 default:
3768 bt_dev_err(hdev, "Unsupported hardware variant (%08x)",
3769 dev_id);
3770 return -ENODEV;
3771 }
3772
3773 /* Query whether the firmware is already download */
3774 wmt_params.op = BTMTK_WMT_SEMAPHORE;
3775 wmt_params.flag = 1;
3776 wmt_params.dlen = 0;
3777 wmt_params.data = NULL;
3778 wmt_params.status = &status;
3779
3780 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3781 if (err < 0) {
3782 bt_dev_err(hdev, "Failed to query firmware status (%d)", err);
3783 return err;
3784 }
3785
3786 if (status == BTMTK_WMT_PATCH_DONE) {
3787 bt_dev_info(hdev, "firmware already downloaded");
3788 goto ignore_setup_fw;
3789 }
3790
3791 /* Setup a firmware which the device definitely requires */
3792 err = btusb_mtk_setup_firmware(hdev, fwname);
3793 if (err < 0)
3794 return err;
3795
3796ignore_setup_fw:
3797 err = readx_poll_timeout(btusb_mtk_func_query, hdev, status,
3798 status < 0 || status != BTMTK_WMT_ON_PROGRESS,
3799 2000, 5000000);
3800 /* -ETIMEDOUT happens */
3801 if (err < 0)
3802 return err;
3803
3804 /* The other errors happen in btusb_mtk_func_query */
3805 if (status < 0)
3806 return status;
3807
3808 if (status == BTMTK_WMT_ON_DONE) {
3809 bt_dev_info(hdev, "function already on");
3810 goto ignore_func_on;
3811 }
3812
3813 /* Enable Bluetooth protocol */
3814 param = 1;
3815 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3816 wmt_params.flag = 0;
3817 wmt_params.dlen = sizeof(param);
3818 wmt_params.data = ¶m;
3819 wmt_params.status = NULL;
3820
3821 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3822 if (err < 0) {
3823 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3824 return err;
3825 }
3826
3827ignore_func_on:
3828 /* Apply the low power environment setup */
3829 tci_sleep.mode = 0x5;
3830 tci_sleep.duration = cpu_to_le16(0x640);
3831 tci_sleep.host_duration = cpu_to_le16(0x640);
3832 tci_sleep.host_wakeup_pin = 0;
3833 tci_sleep.time_compensation = 0;
3834
3835 skb = __hci_cmd_sync(hdev, 0xfc7a, sizeof(tci_sleep), &tci_sleep,
3836 HCI_INIT_TIMEOUT);
3837 if (IS_ERR(skb)) {
3838 err = PTR_ERR(skb);
3839 bt_dev_err(hdev, "Failed to apply low power setting (%d)", err);
3840 return err;
3841 }
3842 kfree_skb(skb);
3843
3844done:
3845 rettime = ktime_get();
3846 delta = ktime_sub(rettime, calltime);
3847 duration = (unsigned long long)ktime_to_ns(delta) >> 10;
3848
3849 bt_dev_info(hdev, "Device setup in %llu usecs", duration);
3850
3851 return 0;
3852}
3853
3854static int btusb_mtk_shutdown(struct hci_dev *hdev)
3855{
3856 struct btmtk_hci_wmt_params wmt_params;
3857 u8 param = 0;
3858 int err;
3859
3860 /* Disable the device */
3861 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3862 wmt_params.flag = 0;
3863 wmt_params.dlen = sizeof(param);
3864 wmt_params.data = ¶m;
3865 wmt_params.status = NULL;
3866
3867 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3868 if (err < 0) {
3869 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3870 return err;
3871 }
3872
3873 return 0;
3874}
3875
3876MODULE_FIRMWARE(FIRMWARE_MT7663);
3877MODULE_FIRMWARE(FIRMWARE_MT7668);
3878
3879#ifdef CONFIG_PM
3880/* Configure an out-of-band gpio as wake-up pin, if specified in device tree */
3881static int marvell_config_oob_wake(struct hci_dev *hdev)
3882{
3883 struct sk_buff *skb;
3884 struct btusb_data *data = hci_get_drvdata(hdev);
3885 struct device *dev = &data->udev->dev;
3886 u16 pin, gap, opcode;
3887 int ret;
3888 u8 cmd[5];
3889
3890 /* Move on if no wakeup pin specified */
3891 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) ||
3892 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap))
3893 return 0;
3894
3895 /* Vendor specific command to configure a GPIO as wake-up pin */
3896 opcode = hci_opcode_pack(0x3F, 0x59);
3897 cmd[0] = opcode & 0xFF;
3898 cmd[1] = opcode >> 8;
3899 cmd[2] = 2; /* length of parameters that follow */
3900 cmd[3] = pin;
3901 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */
3902
3903 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
3904 if (!skb) {
3905 bt_dev_err(hdev, "%s: No memory", __func__);
3906 return -ENOMEM;
3907 }
3908
3909 skb_put_data(skb, cmd, sizeof(cmd));
3910 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
3911
3912 ret = btusb_send_frame(hdev, skb);
3913 if (ret) {
3914 bt_dev_err(hdev, "%s: configuration failed", __func__);
3915 kfree_skb(skb);
3916 return ret;
3917 }
3918
3919 return 0;
3920}
3921#endif
3922
3923static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
3924 const bdaddr_t *bdaddr)
3925{
3926 struct sk_buff *skb;
3927 u8 buf[8];
3928 long ret;
3929
3930 buf[0] = 0xfe;
3931 buf[1] = sizeof(bdaddr_t);
3932 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
3933
3934 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3935 if (IS_ERR(skb)) {
3936 ret = PTR_ERR(skb);
3937 bt_dev_err(hdev, "changing Marvell device address failed (%ld)",
3938 ret);
3939 return ret;
3940 }
3941 kfree_skb(skb);
3942
3943 return 0;
3944}
3945
3946static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
3947 const bdaddr_t *bdaddr)
3948{
3949 struct sk_buff *skb;
3950 u8 buf[10];
3951 long ret;
3952
3953 buf[0] = 0x01;
3954 buf[1] = 0x01;
3955 buf[2] = 0x00;
3956 buf[3] = sizeof(bdaddr_t);
3957 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
3958
3959 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3960 if (IS_ERR(skb)) {
3961 ret = PTR_ERR(skb);
3962 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
3963 return ret;
3964 }
3965 kfree_skb(skb);
3966
3967 return 0;
3968}
3969
3970static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev,
3971 const bdaddr_t *bdaddr)
3972{
3973 struct sk_buff *skb;
3974 u8 buf[6];
3975 long ret;
3976
3977 memcpy(buf, bdaddr, sizeof(bdaddr_t));
3978
3979 skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(buf), buf,
3980 HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT);
3981 if (IS_ERR(skb)) {
3982 ret = PTR_ERR(skb);
3983 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
3984 return ret;
3985 }
3986 kfree_skb(skb);
3987
3988 return 0;
3989}
3990
3991#define QCA_DFU_PACKET_LEN 4096
3992
3993#define QCA_GET_TARGET_VERSION 0x09
3994#define QCA_CHECK_STATUS 0x05
3995#define QCA_DFU_DOWNLOAD 0x01
3996
3997#define QCA_SYSCFG_UPDATED 0x40
3998#define QCA_PATCH_UPDATED 0x80
3999#define QCA_DFU_TIMEOUT 3000
4000#define QCA_FLAG_MULTI_NVM 0x80
4001
4002struct qca_version {
4003 __le32 rom_version;
4004 __le32 patch_version;
4005 __le32 ram_version;
4006 __le16 board_id;
4007 __le16 flag;
4008 __u8 reserved[4];
4009} __packed;
4010
4011struct qca_rampatch_version {
4012 __le16 rom_version_high;
4013 __le16 rom_version_low;
4014 __le16 patch_version;
4015} __packed;
4016
4017struct qca_device_info {
4018 u32 rom_version;
4019 u8 rampatch_hdr; /* length of header in rampatch */
4020 u8 nvm_hdr; /* length of header in NVM */
4021 u8 ver_offset; /* offset of version structure in rampatch */
4022};
4023
4024static const struct qca_device_info qca_devices_table[] = {
4025 { 0x00000100, 20, 4, 8 }, /* Rome 1.0 */
4026 { 0x00000101, 20, 4, 8 }, /* Rome 1.1 */
4027 { 0x00000200, 28, 4, 16 }, /* Rome 2.0 */
4028 { 0x00000201, 28, 4, 16 }, /* Rome 2.1 */
4029 { 0x00000300, 28, 4, 16 }, /* Rome 3.0 */
4030 { 0x00000302, 28, 4, 16 }, /* Rome 3.2 */
4031 { 0x00130100, 40, 4, 16 }, /* WCN6855 1.0 */
4032 { 0x00130200, 40, 4, 16 }, /* WCN6855 2.0 */
4033};
4034
4035static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request,
4036 void *data, u16 size)
4037{
4038 int pipe, err;
4039 u8 *buf;
4040
4041 buf = kmalloc(size, GFP_KERNEL);
4042 if (!buf)
4043 return -ENOMEM;
4044
4045 /* Found some of USB hosts have IOT issues with ours so that we should
4046 * not wait until HCI layer is ready.
4047 */
4048 pipe = usb_rcvctrlpipe(udev, 0);
4049 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
4050 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
4051 if (err < 0) {
4052 dev_err(&udev->dev, "Failed to access otp area (%d)", err);
4053 goto done;
4054 }
4055
4056 memcpy(data, buf, size);
4057
4058done:
4059 kfree(buf);
4060
4061 return err;
4062}
4063
4064static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
4065 const struct firmware *firmware,
4066 size_t hdr_size)
4067{
4068 struct btusb_data *btdata = hci_get_drvdata(hdev);
4069 struct usb_device *udev = btdata->udev;
4070 size_t count, size, sent = 0;
4071 int pipe, len, err;
4072 u8 *buf;
4073
4074 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
4075 if (!buf)
4076 return -ENOMEM;
4077
4078 count = firmware->size;
4079
4080 size = min_t(size_t, count, hdr_size);
4081 memcpy(buf, firmware->data, size);
4082
4083 /* USB patches should go down to controller through USB path
4084 * because binary format fits to go down through USB channel.
4085 * USB control path is for patching headers and USB bulk is for
4086 * patch body.
4087 */
4088 pipe = usb_sndctrlpipe(udev, 0);
4089 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
4090 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
4091 if (err < 0) {
4092 bt_dev_err(hdev, "Failed to send headers (%d)", err);
4093 goto done;
4094 }
4095
4096 sent += size;
4097 count -= size;
4098
4099 /* ep2 need time to switch from function acl to function dfu,
4100 * so we add 20ms delay here.
4101 */
4102 msleep(20);
4103
4104 while (count) {
4105 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
4106
4107 memcpy(buf, firmware->data + sent, size);
4108
4109 pipe = usb_sndbulkpipe(udev, 0x02);
4110 err = usb_bulk_msg(udev, pipe, buf, size, &len,
4111 QCA_DFU_TIMEOUT);
4112 if (err < 0) {
4113 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)",
4114 sent, firmware->size, err);
4115 break;
4116 }
4117
4118 if (size != len) {
4119 bt_dev_err(hdev, "Failed to get bulk buffer");
4120 err = -EILSEQ;
4121 break;
4122 }
4123
4124 sent += size;
4125 count -= size;
4126 }
4127
4128done:
4129 kfree(buf);
4130 return err;
4131}
4132
4133static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
4134 struct qca_version *ver,
4135 const struct qca_device_info *info)
4136{
4137 struct qca_rampatch_version *rver;
4138 const struct firmware *fw;
4139 u32 ver_rom, ver_patch, rver_rom;
4140 u16 rver_rom_low, rver_rom_high, rver_patch;
4141 char fwname[64];
4142 int err;
4143
4144 ver_rom = le32_to_cpu(ver->rom_version);
4145 ver_patch = le32_to_cpu(ver->patch_version);
4146
4147 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
4148
4149 err = request_firmware(&fw, fwname, &hdev->dev);
4150 if (err) {
4151 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)",
4152 fwname, err);
4153 return err;
4154 }
4155
4156 bt_dev_info(hdev, "using rampatch file: %s", fwname);
4157
4158 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
4159 rver_rom_low = le16_to_cpu(rver->rom_version_low);
4160 rver_patch = le16_to_cpu(rver->patch_version);
4161
4162 if (ver_rom & ~0xffffU) {
4163 rver_rom_high = le16_to_cpu(rver->rom_version_high);
4164 rver_rom = le32_to_cpu(rver_rom_high << 16 | rver_rom_low);
4165 } else {
4166 rver_rom = rver_rom_low;
4167 }
4168
4169 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, "
4170 "firmware rome 0x%x build 0x%x",
4171 rver_rom, rver_patch, ver_rom, ver_patch);
4172
4173 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
4174 bt_dev_err(hdev, "rampatch file version did not match with firmware");
4175 err = -EINVAL;
4176 goto done;
4177 }
4178
4179 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
4180
4181done:
4182 release_firmware(fw);
4183
4184 return err;
4185}
4186
4187static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
4188 struct qca_version *ver,
4189 const struct qca_device_info *info)
4190{
4191 const struct firmware *fw;
4192 char fwname[64];
4193 int err;
4194
4195 if (((ver->flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) {
4196 /* if boardid equal 0, use default nvm without surfix */
4197 if (le16_to_cpu(ver->board_id) == 0x0) {
4198 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin",
4199 le32_to_cpu(ver->rom_version));
4200 } else {
4201 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x_%04x.bin",
4202 le32_to_cpu(ver->rom_version),
4203 le16_to_cpu(ver->board_id));
4204 }
4205 } else {
4206 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin",
4207 le32_to_cpu(ver->rom_version));
4208 }
4209
4210 err = request_firmware(&fw, fwname, &hdev->dev);
4211 if (err) {
4212 bt_dev_err(hdev, "failed to request NVM file: %s (%d)",
4213 fwname, err);
4214 return err;
4215 }
4216
4217 bt_dev_info(hdev, "using NVM file: %s", fwname);
4218
4219 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
4220
4221 release_firmware(fw);
4222
4223 return err;
4224}
4225
4226/* identify the ROM version and check whether patches are needed */
4227static bool btusb_qca_need_patch(struct usb_device *udev)
4228{
4229 struct qca_version ver;
4230
4231 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
4232 sizeof(ver)) < 0)
4233 return false;
4234 /* only low ROM versions need patches */
4235 return !(le32_to_cpu(ver.rom_version) & ~0xffffU);
4236}
4237
4238static int btusb_setup_qca(struct hci_dev *hdev)
4239{
4240 struct btusb_data *btdata = hci_get_drvdata(hdev);
4241 struct usb_device *udev = btdata->udev;
4242 const struct qca_device_info *info = NULL;
4243 struct qca_version ver;
4244 u32 ver_rom;
4245 u8 status;
4246 int i, err;
4247
4248 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
4249 sizeof(ver));
4250 if (err < 0)
4251 return err;
4252
4253 ver_rom = le32_to_cpu(ver.rom_version);
4254
4255 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
4256 if (ver_rom == qca_devices_table[i].rom_version)
4257 info = &qca_devices_table[i];
4258 }
4259 if (!info) {
4260 /* If the rom_version is not matched in the qca_devices_table
4261 * and the high ROM version is not zero, we assume this chip no
4262 * need to load the rampatch and nvm.
4263 */
4264 if (ver_rom & ~0xffffU)
4265 return 0;
4266
4267 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom);
4268 return -ENODEV;
4269 }
4270
4271 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status,
4272 sizeof(status));
4273 if (err < 0)
4274 return err;
4275
4276 if (!(status & QCA_PATCH_UPDATED)) {
4277 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
4278 if (err < 0)
4279 return err;
4280 }
4281
4282 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
4283 sizeof(ver));
4284 if (err < 0)
4285 return err;
4286
4287 if (!(status & QCA_SYSCFG_UPDATED)) {
4288 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
4289 if (err < 0)
4290 return err;
4291 }
4292
4293 return 0;
4294}
4295
4296static inline int __set_diag_interface(struct hci_dev *hdev)
4297{
4298 struct btusb_data *data = hci_get_drvdata(hdev);
4299 struct usb_interface *intf = data->diag;
4300 int i;
4301
4302 if (!data->diag)
4303 return -ENODEV;
4304
4305 data->diag_tx_ep = NULL;
4306 data->diag_rx_ep = NULL;
4307
4308 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
4309 struct usb_endpoint_descriptor *ep_desc;
4310
4311 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
4312
4313 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
4314 data->diag_tx_ep = ep_desc;
4315 continue;
4316 }
4317
4318 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
4319 data->diag_rx_ep = ep_desc;
4320 continue;
4321 }
4322 }
4323
4324 if (!data->diag_tx_ep || !data->diag_rx_ep) {
4325 bt_dev_err(hdev, "invalid diagnostic descriptors");
4326 return -ENODEV;
4327 }
4328
4329 return 0;
4330}
4331
4332static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
4333{
4334 struct btusb_data *data = hci_get_drvdata(hdev);
4335 struct sk_buff *skb;
4336 struct urb *urb;
4337 unsigned int pipe;
4338
4339 if (!data->diag_tx_ep)
4340 return ERR_PTR(-ENODEV);
4341
4342 urb = usb_alloc_urb(0, GFP_KERNEL);
4343 if (!urb)
4344 return ERR_PTR(-ENOMEM);
4345
4346 skb = bt_skb_alloc(2, GFP_KERNEL);
4347 if (!skb) {
4348 usb_free_urb(urb);
4349 return ERR_PTR(-ENOMEM);
4350 }
4351
4352 skb_put_u8(skb, 0xf0);
4353 skb_put_u8(skb, enable);
4354
4355 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
4356
4357 usb_fill_bulk_urb(urb, data->udev, pipe,
4358 skb->data, skb->len, btusb_tx_complete, skb);
4359
4360 skb->dev = (void *)hdev;
4361
4362 return urb;
4363}
4364
4365static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
4366{
4367 struct btusb_data *data = hci_get_drvdata(hdev);
4368 struct urb *urb;
4369
4370 if (!data->diag)
4371 return -ENODEV;
4372
4373 if (!test_bit(HCI_RUNNING, &hdev->flags))
4374 return -ENETDOWN;
4375
4376 urb = alloc_diag_urb(hdev, enable);
4377 if (IS_ERR(urb))
4378 return PTR_ERR(urb);
4379
4380 return submit_or_queue_tx_urb(hdev, urb);
4381}
4382
4383#ifdef CONFIG_PM
4384static irqreturn_t btusb_oob_wake_handler(int irq, void *priv)
4385{
4386 struct btusb_data *data = priv;
4387
4388 pm_wakeup_event(&data->udev->dev, 0);
4389 pm_system_wakeup();
4390
4391 /* Disable only if not already disabled (keep it balanced) */
4392 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
4393 disable_irq_nosync(irq);
4394 disable_irq_wake(irq);
4395 }
4396 return IRQ_HANDLED;
4397}
4398
4399static const struct of_device_id btusb_match_table[] = {
4400 { .compatible = "usb1286,204e" },
4401 { .compatible = "usbcf3,e300" }, /* QCA6174A */
4402 { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */
4403 { }
4404};
4405MODULE_DEVICE_TABLE(of, btusb_match_table);
4406
4407/* Use an oob wakeup pin? */
4408static int btusb_config_oob_wake(struct hci_dev *hdev)
4409{
4410 struct btusb_data *data = hci_get_drvdata(hdev);
4411 struct device *dev = &data->udev->dev;
4412 int irq, ret;
4413
4414 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
4415
4416 if (!of_match_device(btusb_match_table, dev))
4417 return 0;
4418
4419 /* Move on if no IRQ specified */
4420 irq = of_irq_get_byname(dev->of_node, "wakeup");
4421 if (irq <= 0) {
4422 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__);
4423 return 0;
4424 }
4425
4426 irq_set_status_flags(irq, IRQ_NOAUTOEN);
4427 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler,
4428 0, "OOB Wake-on-BT", data);
4429 if (ret) {
4430 bt_dev_err(hdev, "%s: IRQ request failed", __func__);
4431 return ret;
4432 }
4433
4434 ret = device_init_wakeup(dev, true);
4435 if (ret) {
4436 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__);
4437 return ret;
4438 }
4439
4440 data->oob_wake_irq = irq;
4441 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq);
4442 return 0;
4443}
4444#endif
4445
4446static void btusb_check_needs_reset_resume(struct usb_interface *intf)
4447{
4448 if (dmi_check_system(btusb_needs_reset_resume_table))
4449 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
4450}
4451
4452static bool btusb_prevent_wake(struct hci_dev *hdev)
4453{
4454 struct btusb_data *data = hci_get_drvdata(hdev);
4455
4456 if (test_bit(BTUSB_WAKEUP_DISABLE, &data->flags))
4457 return true;
4458
4459 return !device_may_wakeup(&data->udev->dev);
4460}
4461
4462static int btusb_shutdown_qca(struct hci_dev *hdev)
4463{
4464 struct sk_buff *skb;
4465
4466 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
4467 if (IS_ERR(skb)) {
4468 bt_dev_err(hdev, "HCI reset during shutdown failed");
4469 return PTR_ERR(skb);
4470 }
4471 kfree_skb(skb);
4472
4473 return 0;
4474}
4475
4476static int btusb_probe(struct usb_interface *intf,
4477 const struct usb_device_id *id)
4478{
4479 struct usb_endpoint_descriptor *ep_desc;
4480 struct gpio_desc *reset_gpio;
4481 struct btusb_data *data;
4482 struct hci_dev *hdev;
4483 unsigned ifnum_base;
4484 int i, err;
4485
4486 BT_DBG("intf %p id %p", intf, id);
4487
4488 /* interface numbers are hardcoded in the spec */
4489 if (intf->cur_altsetting->desc.bInterfaceNumber != 0) {
4490 if (!(id->driver_info & BTUSB_IFNUM_2))
4491 return -ENODEV;
4492 if (intf->cur_altsetting->desc.bInterfaceNumber != 2)
4493 return -ENODEV;
4494 }
4495
4496 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
4497
4498 if (!id->driver_info) {
4499 const struct usb_device_id *match;
4500
4501 match = usb_match_id(intf, blacklist_table);
4502 if (match)
4503 id = match;
4504 }
4505
4506 if (id->driver_info == BTUSB_IGNORE)
4507 return -ENODEV;
4508
4509 if (id->driver_info & BTUSB_ATH3012) {
4510 struct usb_device *udev = interface_to_usbdev(intf);
4511
4512 /* Old firmware would otherwise let ath3k driver load
4513 * patch and sysconfig files
4514 */
4515 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 &&
4516 !btusb_qca_need_patch(udev))
4517 return -ENODEV;
4518 }
4519
4520 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
4521 if (!data)
4522 return -ENOMEM;
4523
4524 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
4525 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
4526
4527 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
4528 data->intr_ep = ep_desc;
4529 continue;
4530 }
4531
4532 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
4533 data->bulk_tx_ep = ep_desc;
4534 continue;
4535 }
4536
4537 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
4538 data->bulk_rx_ep = ep_desc;
4539 continue;
4540 }
4541 }
4542
4543 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
4544 return -ENODEV;
4545
4546 if (id->driver_info & BTUSB_AMP) {
4547 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
4548 data->cmdreq = 0x2b;
4549 } else {
4550 data->cmdreq_type = USB_TYPE_CLASS;
4551 data->cmdreq = 0x00;
4552 }
4553
4554 data->udev = interface_to_usbdev(intf);
4555 data->intf = intf;
4556
4557 INIT_WORK(&data->work, btusb_work);
4558 INIT_WORK(&data->waker, btusb_waker);
4559 init_usb_anchor(&data->deferred);
4560 init_usb_anchor(&data->tx_anchor);
4561 spin_lock_init(&data->txlock);
4562
4563 init_usb_anchor(&data->intr_anchor);
4564 init_usb_anchor(&data->bulk_anchor);
4565 init_usb_anchor(&data->isoc_anchor);
4566 init_usb_anchor(&data->diag_anchor);
4567 init_usb_anchor(&data->ctrl_anchor);
4568 spin_lock_init(&data->rxlock);
4569
4570 if (id->driver_info & BTUSB_INTEL_NEW) {
4571 data->recv_event = btusb_recv_event_intel;
4572 data->recv_bulk = btusb_recv_bulk_intel;
4573 set_bit(BTUSB_BOOTLOADER, &data->flags);
4574 } else {
4575 data->recv_event = hci_recv_frame;
4576 data->recv_bulk = btusb_recv_bulk;
4577 }
4578
4579 hdev = hci_alloc_dev();
4580 if (!hdev)
4581 return -ENOMEM;
4582
4583 hdev->bus = HCI_USB;
4584 hci_set_drvdata(hdev, data);
4585
4586 if (id->driver_info & BTUSB_AMP)
4587 hdev->dev_type = HCI_AMP;
4588 else
4589 hdev->dev_type = HCI_PRIMARY;
4590
4591 data->hdev = hdev;
4592
4593 SET_HCIDEV_DEV(hdev, &intf->dev);
4594
4595 reset_gpio = gpiod_get_optional(&data->udev->dev, "reset",
4596 GPIOD_OUT_LOW);
4597 if (IS_ERR(reset_gpio)) {
4598 err = PTR_ERR(reset_gpio);
4599 goto out_free_dev;
4600 } else if (reset_gpio) {
4601 data->reset_gpio = reset_gpio;
4602 }
4603
4604 hdev->open = btusb_open;
4605 hdev->close = btusb_close;
4606 hdev->flush = btusb_flush;
4607 hdev->send = btusb_send_frame;
4608 hdev->notify = btusb_notify;
4609 hdev->prevent_wake = btusb_prevent_wake;
4610
4611#ifdef CONFIG_PM
4612 err = btusb_config_oob_wake(hdev);
4613 if (err)
4614 goto out_free_dev;
4615
4616 /* Marvell devices may need a specific chip configuration */
4617 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) {
4618 err = marvell_config_oob_wake(hdev);
4619 if (err)
4620 goto out_free_dev;
4621 }
4622#endif
4623 if (id->driver_info & BTUSB_CW6622)
4624 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
4625
4626 if (id->driver_info & BTUSB_BCM2045)
4627 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
4628
4629 if (id->driver_info & BTUSB_BCM92035)
4630 hdev->setup = btusb_setup_bcm92035;
4631
4632 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
4633 (id->driver_info & BTUSB_BCM_PATCHRAM)) {
4634 hdev->manufacturer = 15;
4635 hdev->setup = btbcm_setup_patchram;
4636 hdev->set_diag = btusb_bcm_set_diag;
4637 hdev->set_bdaddr = btbcm_set_bdaddr;
4638
4639 /* Broadcom LM_DIAG Interface numbers are hardcoded */
4640 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
4641 }
4642
4643 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
4644 (id->driver_info & BTUSB_BCM_APPLE)) {
4645 hdev->manufacturer = 15;
4646 hdev->setup = btbcm_setup_apple;
4647 hdev->set_diag = btusb_bcm_set_diag;
4648
4649 /* Broadcom LM_DIAG Interface numbers are hardcoded */
4650 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
4651 }
4652
4653 if (id->driver_info & BTUSB_INTEL) {
4654 hdev->manufacturer = 2;
4655 hdev->setup = btusb_setup_intel;
4656 hdev->shutdown = btusb_shutdown_intel;
4657 hdev->set_diag = btintel_set_diag_mfg;
4658 hdev->set_bdaddr = btintel_set_bdaddr;
4659 hdev->cmd_timeout = btusb_intel_cmd_timeout;
4660 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
4661 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4662 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
4663 }
4664
4665 if (id->driver_info & BTUSB_INTEL_NEW) {
4666 hdev->manufacturer = 2;
4667 hdev->send = btusb_send_frame_intel;
4668 hdev->setup = btusb_setup_intel_new;
4669 hdev->shutdown = btusb_shutdown_intel_new;
4670 hdev->hw_error = btintel_hw_error;
4671 hdev->set_diag = btintel_set_diag;
4672 hdev->set_bdaddr = btintel_set_bdaddr;
4673 hdev->cmd_timeout = btusb_intel_cmd_timeout;
4674 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
4675 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4676 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
4677 }
4678
4679 if (id->driver_info & BTUSB_INTEL_NEWGEN) {
4680 hdev->manufacturer = 2;
4681 hdev->send = btusb_send_frame_intel;
4682 hdev->setup = btusb_setup_intel_newgen;
4683 hdev->shutdown = btusb_shutdown_intel_new;
4684 hdev->hw_error = btintel_hw_error;
4685 hdev->set_diag = btintel_set_diag;
4686 hdev->set_bdaddr = btintel_set_bdaddr;
4687 hdev->cmd_timeout = btusb_intel_cmd_timeout;
4688 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
4689 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4690 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
4691
4692 data->recv_event = btusb_recv_event_intel;
4693 data->recv_bulk = btusb_recv_bulk_intel;
4694 set_bit(BTUSB_BOOTLOADER, &data->flags);
4695 }
4696
4697 if (id->driver_info & BTUSB_MARVELL)
4698 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
4699
4700 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) &&
4701 (id->driver_info & BTUSB_MEDIATEK)) {
4702 hdev->setup = btusb_mtk_setup;
4703 hdev->shutdown = btusb_mtk_shutdown;
4704 hdev->manufacturer = 70;
4705 set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
4706 }
4707
4708 if (id->driver_info & BTUSB_SWAVE) {
4709 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
4710 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
4711 }
4712
4713 if (id->driver_info & BTUSB_INTEL_BOOT) {
4714 hdev->manufacturer = 2;
4715 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
4716 }
4717
4718 if (id->driver_info & BTUSB_ATH3012) {
4719 data->setup_on_usb = btusb_setup_qca;
4720 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
4721 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4722 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
4723 }
4724
4725 if (id->driver_info & BTUSB_QCA_ROME) {
4726 data->setup_on_usb = btusb_setup_qca;
4727 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
4728 hdev->cmd_timeout = btusb_qca_cmd_timeout;
4729 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4730 btusb_check_needs_reset_resume(intf);
4731 }
4732
4733 if (id->driver_info & BTUSB_QCA_WCN6855) {
4734 data->setup_on_usb = btusb_setup_qca;
4735 hdev->shutdown = btusb_shutdown_qca;
4736 hdev->set_bdaddr = btusb_set_bdaddr_wcn6855;
4737 hdev->cmd_timeout = btusb_qca_cmd_timeout;
4738 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4739 }
4740
4741 if (id->driver_info & BTUSB_AMP) {
4742 /* AMP controllers do not support SCO packets */
4743 data->isoc = NULL;
4744 } else {
4745 /* Interface orders are hardcoded in the specification */
4746 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
4747 data->isoc_ifnum = ifnum_base + 1;
4748 }
4749
4750 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) &&
4751 (id->driver_info & BTUSB_REALTEK)) {
4752 hdev->setup = btrtl_setup_realtek;
4753 hdev->shutdown = btrtl_shutdown_realtek;
4754 hdev->cmd_timeout = btusb_rtl_cmd_timeout;
4755
4756 /* Realtek devices lose their updated firmware over global
4757 * suspend that means host doesn't send SET_FEATURE
4758 * (DEVICE_REMOTE_WAKEUP)
4759 */
4760 set_bit(BTUSB_WAKEUP_DISABLE, &data->flags);
4761 set_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags);
4762 }
4763
4764 if (!reset)
4765 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4766
4767 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
4768 if (!disable_scofix)
4769 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
4770 }
4771
4772 if (id->driver_info & BTUSB_BROKEN_ISOC)
4773 data->isoc = NULL;
4774
4775 if (id->driver_info & BTUSB_WIDEBAND_SPEECH)
4776 set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks);
4777
4778 if (id->driver_info & BTUSB_VALID_LE_STATES)
4779 set_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks);
4780
4781 if (id->driver_info & BTUSB_DIGIANSWER) {
4782 data->cmdreq_type = USB_TYPE_VENDOR;
4783 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4784 }
4785
4786 if (id->driver_info & BTUSB_CSR) {
4787 struct usb_device *udev = data->udev;
4788 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
4789
4790 /* Old firmware would otherwise execute USB reset */
4791 if (bcdDevice < 0x117)
4792 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4793
4794 /* This must be set first in case we disable it for fakes */
4795 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4796
4797 /* Fake CSR devices with broken commands */
4798 if (le16_to_cpu(udev->descriptor.idVendor) == 0x0a12 &&
4799 le16_to_cpu(udev->descriptor.idProduct) == 0x0001)
4800 hdev->setup = btusb_setup_csr;
4801 }
4802
4803 if (id->driver_info & BTUSB_SNIFFER) {
4804 struct usb_device *udev = data->udev;
4805
4806 /* New sniffer firmware has crippled HCI interface */
4807 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
4808 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
4809 }
4810
4811 if (id->driver_info & BTUSB_INTEL_BOOT) {
4812 /* A bug in the bootloader causes that interrupt interface is
4813 * only enabled after receiving SetInterface(0, AltSetting=0).
4814 */
4815 err = usb_set_interface(data->udev, 0, 0);
4816 if (err < 0) {
4817 BT_ERR("failed to set interface 0, alt 0 %d", err);
4818 goto out_free_dev;
4819 }
4820 }
4821
4822 if (data->isoc) {
4823 err = usb_driver_claim_interface(&btusb_driver,
4824 data->isoc, data);
4825 if (err < 0)
4826 goto out_free_dev;
4827 }
4828
4829 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) {
4830 if (!usb_driver_claim_interface(&btusb_driver,
4831 data->diag, data))
4832 __set_diag_interface(hdev);
4833 else
4834 data->diag = NULL;
4835 }
4836
4837 if (enable_autosuspend)
4838 usb_enable_autosuspend(data->udev);
4839
4840 err = hci_register_dev(hdev);
4841 if (err < 0)
4842 goto out_free_dev;
4843
4844 usb_set_intfdata(intf, data);
4845
4846 return 0;
4847
4848out_free_dev:
4849 if (data->reset_gpio)
4850 gpiod_put(data->reset_gpio);
4851 hci_free_dev(hdev);
4852 return err;
4853}
4854
4855static void btusb_disconnect(struct usb_interface *intf)
4856{
4857 struct btusb_data *data = usb_get_intfdata(intf);
4858 struct hci_dev *hdev;
4859
4860 BT_DBG("intf %p", intf);
4861
4862 if (!data)
4863 return;
4864
4865 hdev = data->hdev;
4866 usb_set_intfdata(data->intf, NULL);
4867
4868 if (data->isoc)
4869 usb_set_intfdata(data->isoc, NULL);
4870
4871 if (data->diag)
4872 usb_set_intfdata(data->diag, NULL);
4873
4874 hci_unregister_dev(hdev);
4875
4876 if (intf == data->intf) {
4877 if (data->isoc)
4878 usb_driver_release_interface(&btusb_driver, data->isoc);
4879 if (data->diag)
4880 usb_driver_release_interface(&btusb_driver, data->diag);
4881 } else if (intf == data->isoc) {
4882 if (data->diag)
4883 usb_driver_release_interface(&btusb_driver, data->diag);
4884 usb_driver_release_interface(&btusb_driver, data->intf);
4885 } else if (intf == data->diag) {
4886 usb_driver_release_interface(&btusb_driver, data->intf);
4887 if (data->isoc)
4888 usb_driver_release_interface(&btusb_driver, data->isoc);
4889 }
4890
4891 if (data->oob_wake_irq)
4892 device_init_wakeup(&data->udev->dev, false);
4893
4894 if (data->reset_gpio)
4895 gpiod_put(data->reset_gpio);
4896
4897 hci_free_dev(hdev);
4898}
4899
4900#ifdef CONFIG_PM
4901static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
4902{
4903 struct btusb_data *data = usb_get_intfdata(intf);
4904
4905 BT_DBG("intf %p", intf);
4906
4907 if (data->suspend_count++)
4908 return 0;
4909
4910 spin_lock_irq(&data->txlock);
4911 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
4912 set_bit(BTUSB_SUSPENDING, &data->flags);
4913 spin_unlock_irq(&data->txlock);
4914 } else {
4915 spin_unlock_irq(&data->txlock);
4916 data->suspend_count--;
4917 return -EBUSY;
4918 }
4919
4920 cancel_work_sync(&data->work);
4921
4922 btusb_stop_traffic(data);
4923 usb_kill_anchored_urbs(&data->tx_anchor);
4924
4925 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) {
4926 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
4927 enable_irq_wake(data->oob_wake_irq);
4928 enable_irq(data->oob_wake_irq);
4929 }
4930
4931 /* For global suspend, Realtek devices lose the loaded fw
4932 * in them. But for autosuspend, firmware should remain.
4933 * Actually, it depends on whether the usb host sends
4934 * set feature (enable wakeup) or not.
4935 */
4936 if (test_bit(BTUSB_WAKEUP_DISABLE, &data->flags)) {
4937 if (PMSG_IS_AUTO(message) &&
4938 device_can_wakeup(&data->udev->dev))
4939 data->udev->do_remote_wakeup = 1;
4940 else if (!PMSG_IS_AUTO(message))
4941 data->udev->reset_resume = 1;
4942 }
4943
4944 return 0;
4945}
4946
4947static void play_deferred(struct btusb_data *data)
4948{
4949 struct urb *urb;
4950 int err;
4951
4952 while ((urb = usb_get_from_anchor(&data->deferred))) {
4953 usb_anchor_urb(urb, &data->tx_anchor);
4954
4955 err = usb_submit_urb(urb, GFP_ATOMIC);
4956 if (err < 0) {
4957 if (err != -EPERM && err != -ENODEV)
4958 BT_ERR("%s urb %p submission failed (%d)",
4959 data->hdev->name, urb, -err);
4960 kfree(urb->setup_packet);
4961 usb_unanchor_urb(urb);
4962 usb_free_urb(urb);
4963 break;
4964 }
4965
4966 data->tx_in_flight++;
4967 usb_free_urb(urb);
4968 }
4969
4970 /* Cleanup the rest deferred urbs. */
4971 while ((urb = usb_get_from_anchor(&data->deferred))) {
4972 kfree(urb->setup_packet);
4973 usb_free_urb(urb);
4974 }
4975}
4976
4977static int btusb_resume(struct usb_interface *intf)
4978{
4979 struct btusb_data *data = usb_get_intfdata(intf);
4980 struct hci_dev *hdev = data->hdev;
4981 int err = 0;
4982
4983 BT_DBG("intf %p", intf);
4984
4985 if (--data->suspend_count)
4986 return 0;
4987
4988 /* Disable only if not already disabled (keep it balanced) */
4989 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
4990 disable_irq(data->oob_wake_irq);
4991 disable_irq_wake(data->oob_wake_irq);
4992 }
4993
4994 if (!test_bit(HCI_RUNNING, &hdev->flags))
4995 goto done;
4996
4997 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
4998 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
4999 if (err < 0) {
5000 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
5001 goto failed;
5002 }
5003 }
5004
5005 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
5006 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
5007 if (err < 0) {
5008 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
5009 goto failed;
5010 }
5011
5012 btusb_submit_bulk_urb(hdev, GFP_NOIO);
5013 }
5014
5015 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
5016 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
5017 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
5018 else
5019 btusb_submit_isoc_urb(hdev, GFP_NOIO);
5020 }
5021
5022 spin_lock_irq(&data->txlock);
5023 play_deferred(data);
5024 clear_bit(BTUSB_SUSPENDING, &data->flags);
5025 spin_unlock_irq(&data->txlock);
5026 schedule_work(&data->work);
5027
5028 return 0;
5029
5030failed:
5031 usb_scuttle_anchored_urbs(&data->deferred);
5032done:
5033 spin_lock_irq(&data->txlock);
5034 clear_bit(BTUSB_SUSPENDING, &data->flags);
5035 spin_unlock_irq(&data->txlock);
5036
5037 return err;
5038}
5039#endif
5040
5041static struct usb_driver btusb_driver = {
5042 .name = "btusb",
5043 .probe = btusb_probe,
5044 .disconnect = btusb_disconnect,
5045#ifdef CONFIG_PM
5046 .suspend = btusb_suspend,
5047 .resume = btusb_resume,
5048#endif
5049 .id_table = btusb_table,
5050 .supports_autosuspend = 1,
5051 .disable_hub_initiated_lpm = 1,
5052};
5053
5054module_usb_driver(btusb_driver);
5055
5056module_param(disable_scofix, bool, 0644);
5057MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
5058
5059module_param(force_scofix, bool, 0644);
5060MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
5061
5062module_param(enable_autosuspend, bool, 0644);
5063MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default");
5064
5065module_param(reset, bool, 0644);
5066MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
5067
5068MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
5069MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
5070MODULE_VERSION(VERSION);
5071MODULE_LICENSE("GPL");