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Bluetooth: Send HCI Reset command by default on device initialization
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / bluetooth / btusb.c
CommitLineData
5e23b923
MH		 1/*
2 *
3 * Generic Bluetooth USB driver
4 *
9bfa35fe 5 * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org>
5e23b923
MH		 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 CONFIG_BT_HCIBTUSB_DEBUG
39#ifndef CONFIG_BT_HCIBTUSB_DEBUG
40#undef BT_DBG
41#define BT_DBG(D...)
42#endif
43
7a9d4020 44#define VERSION "0.4"
cfeb4145
MH		 45
46static int ignore_dga;
47static int ignore_csr;
48static int ignore_sniffer;
49static int disable_scofix;
50static int force_scofix;
7a9d4020
MH		 51
52static int reset = 1;
cfeb4145
MH		 53
54static struct usb_driver btusb_driver;
55
56#define BTUSB_IGNORE 0x01
7a9d4020
MH		 57#define BTUSB_DIGIANSWER 0x02
58#define BTUSB_CSR 0x04
59#define BTUSB_SNIFFER 0x08
60#define BTUSB_BCM92035 0x10
61#define BTUSB_BROKEN_ISOC 0x20
62#define BTUSB_WRONG_SCO_MTU 0x40
5e23b923
MH		 63
64static struct usb_device_id btusb_table[] = {
65 /* Generic Bluetooth USB device */
66 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
67
cfeb4145
MH		 68 /* AVM BlueFRITZ! USB v2.0 */
69 { USB_DEVICE(0x057c, 0x3800) },
70
71 /* Bluetooth Ultraport Module from IBM */
72 { USB_DEVICE(0x04bf, 0x030a) },
73
74 /* ALPS Modules with non-standard id */
75 { USB_DEVICE(0x044e, 0x3001) },
76 { USB_DEVICE(0x044e, 0x3002) },
77
78 /* Ericsson with non-standard id */
79 { USB_DEVICE(0x0bdb, 0x1002) },
80
81 /* Canyon CN-BTU1 with HID interfaces */
7a9d4020 82 { USB_DEVICE(0x0c10, 0x0000) },
cfeb4145 83
5e23b923
MH		 84 { } /* Terminating entry */
85};
86
87MODULE_DEVICE_TABLE(usb, btusb_table);
88
89static struct usb_device_id blacklist_table[] = {
cfeb4145
MH		 90 /* CSR BlueCore devices */
91 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
92
93 /* Broadcom BCM2033 without firmware */
94 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
95
96 /* Broadcom BCM2035 */
7a9d4020
MH		 97 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
98 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
99 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
cfeb4145
MH		 100
101 /* Broadcom BCM2045 */
7a9d4020
MH		 102 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
103 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
bdbef3d6 104
cfeb4145 105 /* IBM/Lenovo ThinkPad with Broadcom chip */
7a9d4020
MH		 106 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
107 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 108
109 /* HP laptop with Broadcom chip */
7a9d4020 110 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 111
112 /* Dell laptop with Broadcom chip */
7a9d4020 113 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 114
115 /* Dell Wireless 370 */
7a9d4020 116 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 117
118 /* Dell Wireless 410 */
7a9d4020 119 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 120
121 /* Kensington Bluetooth USB adapter */
7a9d4020 122 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 123
7a9d4020
MH		 124 /* Belkin F8T012 and F8T013 devices */
125 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
126 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 127
128 /* RTX Telecom based adapters with buggy SCO support */
129 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
130 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
131
132 /* CONWISE Technology based adapters with buggy SCO support */
133 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
134
cfeb4145
MH		 135 /* Digianswer devices */
136 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
137 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
138
139 /* CSR BlueCore Bluetooth Sniffer */
140 { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
141
142 /* Frontline ComProbe Bluetooth Sniffer */
143 { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
144
5e23b923
MH		 145 { } /* Terminating entry */
146};
147
9bfa35fe
MH		 148#define BTUSB_MAX_ISOC_FRAMES 10
149
5e23b923
MH		 150#define BTUSB_INTR_RUNNING 0
151#define BTUSB_BULK_RUNNING 1
9bfa35fe 152#define BTUSB_ISOC_RUNNING 2
5e23b923
MH		 153
154struct btusb_data {
155 struct hci_dev *hdev;
156 struct usb_device *udev;
5fbcd260 157 struct usb_interface *intf;
9bfa35fe 158 struct usb_interface *isoc;
5e23b923
MH		 159
160 spinlock_t lock;
161
162 unsigned long flags;
163
164 struct work_struct work;
165
166 struct usb_anchor tx_anchor;
167 struct usb_anchor intr_anchor;
168 struct usb_anchor bulk_anchor;
9bfa35fe 169 struct usb_anchor isoc_anchor;
5e23b923
MH		 170
171 struct usb_endpoint_descriptor *intr_ep;
172 struct usb_endpoint_descriptor *bulk_tx_ep;
173 struct usb_endpoint_descriptor *bulk_rx_ep;
9bfa35fe
MH		 174 struct usb_endpoint_descriptor *isoc_tx_ep;
175 struct usb_endpoint_descriptor *isoc_rx_ep;
176
7a9d4020
MH		 177 __u8 cmdreq_type;
178
9bfa35fe 179 int isoc_altsetting;
6a88adf2 180 int suspend_count;
5e23b923
MH		 181};
182
183static void btusb_intr_complete(struct urb *urb)
184{
185 struct hci_dev *hdev = urb->context;
186 struct btusb_data *data = hdev->driver_data;
187 int err;
188
189 BT_DBG("%s urb %p status %d count %d", hdev->name,
190 urb, urb->status, urb->actual_length);
191
192 if (!test_bit(HCI_RUNNING, &hdev->flags))
193 return;
194
195 if (urb->status == 0) {
9bfa35fe
MH		 196 hdev->stat.byte_rx += urb->actual_length;
197
5e23b923
MH		 198 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
199 urb->transfer_buffer,
200 urb->actual_length) < 0) {
201 BT_ERR("%s corrupted event packet", hdev->name);
202 hdev->stat.err_rx++;
203 }
204 }
205
206 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
207 return;
208
209 usb_anchor_urb(urb, &data->intr_anchor);
210
211 err = usb_submit_urb(urb, GFP_ATOMIC);
212 if (err < 0) {
213 BT_ERR("%s urb %p failed to resubmit (%d)",
214 hdev->name, urb, -err);
215 usb_unanchor_urb(urb);
216 }
217}
218
2eda66f4 219static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
5e23b923
MH		 220{
221 struct btusb_data *data = hdev->driver_data;
222 struct urb *urb;
223 unsigned char *buf;
224 unsigned int pipe;
225 int err, size;
226
227 BT_DBG("%s", hdev->name);
228
9bfa35fe
MH		 229 if (!data->intr_ep)
230 return -ENODEV;
231
2eda66f4 232 urb = usb_alloc_urb(0, mem_flags);
5e23b923
MH		 233 if (!urb)
234 return -ENOMEM;
235
236 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
237
2eda66f4 238 buf = kmalloc(size, mem_flags);
5e23b923
MH		 239 if (!buf) {
240 usb_free_urb(urb);
241 return -ENOMEM;
242 }
243
244 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
245
246 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
247 btusb_intr_complete, hdev,
248 data->intr_ep->bInterval);
249
250 urb->transfer_flags |= URB_FREE_BUFFER;
251
252 usb_anchor_urb(urb, &data->intr_anchor);
253
2eda66f4 254 err = usb_submit_urb(urb, mem_flags);
5e23b923
MH		 255 if (err < 0) {
256 BT_ERR("%s urb %p submission failed (%d)",
257 hdev->name, urb, -err);
258 usb_unanchor_urb(urb);
5e23b923
MH		 259 }
260
261 usb_free_urb(urb);
262
263 return err;
264}
265
266static void btusb_bulk_complete(struct urb *urb)
267{
268 struct hci_dev *hdev = urb->context;
269 struct btusb_data *data = hdev->driver_data;
270 int err;
271
272 BT_DBG("%s urb %p status %d count %d", hdev->name,
273 urb, urb->status, urb->actual_length);
274
275 if (!test_bit(HCI_RUNNING, &hdev->flags))
276 return;
277
278 if (urb->status == 0) {
9bfa35fe
MH		 279 hdev->stat.byte_rx += urb->actual_length;
280
5e23b923
MH		 281 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
282 urb->transfer_buffer,
283 urb->actual_length) < 0) {
284 BT_ERR("%s corrupted ACL packet", hdev->name);
285 hdev->stat.err_rx++;
286 }
287 }
288
289 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
290 return;
291
292 usb_anchor_urb(urb, &data->bulk_anchor);
293
294 err = usb_submit_urb(urb, GFP_ATOMIC);
295 if (err < 0) {
296 BT_ERR("%s urb %p failed to resubmit (%d)",
297 hdev->name, urb, -err);
298 usb_unanchor_urb(urb);
299 }
300}
301
2eda66f4 302static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
5e23b923
MH		 303{
304 struct btusb_data *data = hdev->driver_data;
305 struct urb *urb;
306 unsigned char *buf;
307 unsigned int pipe;
308 int err, size;
309
310 BT_DBG("%s", hdev->name);
311
9bfa35fe
MH		 312 if (!data->bulk_rx_ep)
313 return -ENODEV;
314
2eda66f4 315 urb = usb_alloc_urb(0, mem_flags);
5e23b923
MH		 316 if (!urb)
317 return -ENOMEM;
318
319 size = le16_to_cpu(data->bulk_rx_ep->wMaxPacketSize);
320
2eda66f4 321 buf = kmalloc(size, mem_flags);
5e23b923
MH		 322 if (!buf) {
323 usb_free_urb(urb);
324 return -ENOMEM;
325 }
326
327 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
328
329 usb_fill_bulk_urb(urb, data->udev, pipe,
330 buf, size, btusb_bulk_complete, hdev);
331
332 urb->transfer_flags |= URB_FREE_BUFFER;
333
334 usb_anchor_urb(urb, &data->bulk_anchor);
335
2eda66f4 336 err = usb_submit_urb(urb, mem_flags);
5e23b923
MH		 337 if (err < 0) {
338 BT_ERR("%s urb %p submission failed (%d)",
339 hdev->name, urb, -err);
340 usb_unanchor_urb(urb);
5e23b923
MH		 341 }
342
343 usb_free_urb(urb);
344
345 return err;
346}
347
9bfa35fe
MH		 348static void btusb_isoc_complete(struct urb *urb)
349{
350 struct hci_dev *hdev = urb->context;
351 struct btusb_data *data = hdev->driver_data;
352 int i, err;
353
354 BT_DBG("%s urb %p status %d count %d", hdev->name,
355 urb, urb->status, urb->actual_length);
356
357 if (!test_bit(HCI_RUNNING, &hdev->flags))
358 return;
359
360 if (urb->status == 0) {
361 for (i = 0; i < urb->number_of_packets; i++) {
362 unsigned int offset = urb->iso_frame_desc[i].offset;
363 unsigned int length = urb->iso_frame_desc[i].actual_length;
364
365 if (urb->iso_frame_desc[i].status)
366 continue;
367
368 hdev->stat.byte_rx += length;
369
370 if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
371 urb->transfer_buffer + offset,
372 length) < 0) {
373 BT_ERR("%s corrupted SCO packet", hdev->name);
374 hdev->stat.err_rx++;
375 }
376 }
377 }
378
379 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
380 return;
381
382 usb_anchor_urb(urb, &data->isoc_anchor);
383
384 err = usb_submit_urb(urb, GFP_ATOMIC);
385 if (err < 0) {
386 BT_ERR("%s urb %p failed to resubmit (%d)",
387 hdev->name, urb, -err);
388 usb_unanchor_urb(urb);
389 }
390}
391
392static void inline __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
393{
394 int i, offset = 0;
395
396 BT_DBG("len %d mtu %d", len, mtu);
397
398 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
399 i++, offset += mtu, len -= mtu) {
400 urb->iso_frame_desc[i].offset = offset;
401 urb->iso_frame_desc[i].length = mtu;
402 }
403
404 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
405 urb->iso_frame_desc[i].offset = offset;
406 urb->iso_frame_desc[i].length = len;
407 i++;
408 }
409
410 urb->number_of_packets = i;
411}
412
2eda66f4 413static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
9bfa35fe
MH		 414{
415 struct btusb_data *data = hdev->driver_data;
416 struct urb *urb;
417 unsigned char *buf;
418 unsigned int pipe;
419 int err, size;
420
421 BT_DBG("%s", hdev->name);
422
423 if (!data->isoc_rx_ep)
424 return -ENODEV;
425
2eda66f4 426 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
9bfa35fe
MH		 427 if (!urb)
428 return -ENOMEM;
429
430 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
431 BTUSB_MAX_ISOC_FRAMES;
432
2eda66f4 433 buf = kmalloc(size, mem_flags);
9bfa35fe
MH		 434 if (!buf) {
435 usb_free_urb(urb);
436 return -ENOMEM;
437 }
438
439 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
440
441 urb->dev = data->udev;
442 urb->pipe = pipe;
443 urb->context = hdev;
444 urb->complete = btusb_isoc_complete;
445 urb->interval = data->isoc_rx_ep->bInterval;
446
447 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
448 urb->transfer_buffer = buf;
449 urb->transfer_buffer_length = size;
450
451 __fill_isoc_descriptor(urb, size,
452 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
453
454 usb_anchor_urb(urb, &data->isoc_anchor);
455
2eda66f4 456 err = usb_submit_urb(urb, mem_flags);
9bfa35fe
MH		 457 if (err < 0) {
458 BT_ERR("%s urb %p submission failed (%d)",
459 hdev->name, urb, -err);
460 usb_unanchor_urb(urb);
9bfa35fe
MH		 461 }
462
463 usb_free_urb(urb);
464
465 return err;
466}
467
5e23b923
MH		 468static void btusb_tx_complete(struct urb *urb)
469{
470 struct sk_buff *skb = urb->context;
471 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
472
473 BT_DBG("%s urb %p status %d count %d", hdev->name,
474 urb, urb->status, urb->actual_length);
475
476 if (!test_bit(HCI_RUNNING, &hdev->flags))
477 goto done;
478
479 if (!urb->status)
480 hdev->stat.byte_tx += urb->transfer_buffer_length;
481 else
482 hdev->stat.err_tx++;
483
484done:
485 kfree(urb->setup_packet);
486
487 kfree_skb(skb);
488}
489
490static int btusb_open(struct hci_dev *hdev)
491{
492 struct btusb_data *data = hdev->driver_data;
493 int err;
494
495 BT_DBG("%s", hdev->name);
496
497 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
498 return 0;
499
500 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
501 return 0;
502
2eda66f4 503 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
5e23b923 504 if (err < 0) {
e8c3c3d2 505 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
5e23b923
MH		 506 clear_bit(HCI_RUNNING, &hdev->flags);
507 }
508
509 return err;
510}
511
512static int btusb_close(struct hci_dev *hdev)
513{
514 struct btusb_data *data = hdev->driver_data;
515
516 BT_DBG("%s", hdev->name);
517
518 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
519 return 0;
520
e8c3c3d2
MH		 521 cancel_work_sync(&data->work);
522
9bfa35fe 523 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
e8c3c3d2 524 usb_kill_anchored_urbs(&data->isoc_anchor);
9bfa35fe 525
5e23b923
MH		 526 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
527 usb_kill_anchored_urbs(&data->bulk_anchor);
528
529 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
530 usb_kill_anchored_urbs(&data->intr_anchor);
531
532 return 0;
533}
534
535static int btusb_flush(struct hci_dev *hdev)
536{
537 struct btusb_data *data = hdev->driver_data;
538
539 BT_DBG("%s", hdev->name);
540
541 usb_kill_anchored_urbs(&data->tx_anchor);
542
543 return 0;
544}
545
546static int btusb_send_frame(struct sk_buff *skb)
547{
548 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
549 struct btusb_data *data = hdev->driver_data;
550 struct usb_ctrlrequest *dr;
551 struct urb *urb;
552 unsigned int pipe;
553 int err;
554
555 BT_DBG("%s", hdev->name);
556
557 if (!test_bit(HCI_RUNNING, &hdev->flags))
558 return -EBUSY;
559
560 switch (bt_cb(skb)->pkt_type) {
561 case HCI_COMMAND_PKT:
562 urb = usb_alloc_urb(0, GFP_ATOMIC);
563 if (!urb)
564 return -ENOMEM;
565
566 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
567 if (!dr) {
568 usb_free_urb(urb);
569 return -ENOMEM;
570 }
571
7a9d4020 572 dr->bRequestType = data->cmdreq_type;
5e23b923
MH		 573 dr->bRequest = 0;
574 dr->wIndex = 0;
575 dr->wValue = 0;
576 dr->wLength = __cpu_to_le16(skb->len);
577
578 pipe = usb_sndctrlpipe(data->udev, 0x00);
579
580 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
581 skb->data, skb->len, btusb_tx_complete, skb);
582
583 hdev->stat.cmd_tx++;
584 break;
585
586 case HCI_ACLDATA_PKT:
9bfa35fe
MH		 587 if (!data->bulk_tx_ep || hdev->conn_hash.acl_num < 1)
588 return -ENODEV;
589
5e23b923
MH		 590 urb = usb_alloc_urb(0, GFP_ATOMIC);
591 if (!urb)
592 return -ENOMEM;
593
594 pipe = usb_sndbulkpipe(data->udev,
595 data->bulk_tx_ep->bEndpointAddress);
596
597 usb_fill_bulk_urb(urb, data->udev, pipe,
598 skb->data, skb->len, btusb_tx_complete, skb);
599
600 hdev->stat.acl_tx++;
601 break;
602
603 case HCI_SCODATA_PKT:
9bfa35fe
MH		 604 if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
605 return -ENODEV;
606
607 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
608 if (!urb)
609 return -ENOMEM;
610
611 pipe = usb_sndisocpipe(data->udev,
612 data->isoc_tx_ep->bEndpointAddress);
613
614 urb->dev = data->udev;
615 urb->pipe = pipe;
616 urb->context = skb;
617 urb->complete = btusb_tx_complete;
618 urb->interval = data->isoc_tx_ep->bInterval;
619
620 urb->transfer_flags = URB_ISO_ASAP;
621 urb->transfer_buffer = skb->data;
622 urb->transfer_buffer_length = skb->len;
623
624 __fill_isoc_descriptor(urb, skb->len,
625 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
626
5e23b923 627 hdev->stat.sco_tx++;
9bfa35fe 628 break;
5e23b923
MH		 629
630 default:
631 return -EILSEQ;
632 }
633
634 usb_anchor_urb(urb, &data->tx_anchor);
635
636 err = usb_submit_urb(urb, GFP_ATOMIC);
637 if (err < 0) {
638 BT_ERR("%s urb %p submission failed", hdev->name, urb);
639 kfree(urb->setup_packet);
640 usb_unanchor_urb(urb);
641 }
642
643 usb_free_urb(urb);
644
645 return err;
646}
647
648static void btusb_destruct(struct hci_dev *hdev)
649{
650 struct btusb_data *data = hdev->driver_data;
651
652 BT_DBG("%s", hdev->name);
653
654 kfree(data);
655}
656
657static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
658{
659 struct btusb_data *data = hdev->driver_data;
660
661 BT_DBG("%s evt %d", hdev->name, evt);
662
a780efa8
MH		 663 if (hdev->conn_hash.acl_num > 0) {
664 if (!test_and_set_bit(BTUSB_BULK_RUNNING, &data->flags)) {
665 if (btusb_submit_bulk_urb(hdev, GFP_ATOMIC) < 0)
666 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
667 else
668 btusb_submit_bulk_urb(hdev, GFP_ATOMIC);
669 }
670 } else {
671 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
672 usb_unlink_anchored_urbs(&data->bulk_anchor);
673 }
674
675 schedule_work(&data->work);
5e23b923
MH		 676}
677
9bfa35fe
MH		 678static int inline __set_isoc_interface(struct hci_dev *hdev, int altsetting)
679{
680 struct btusb_data *data = hdev->driver_data;
681 struct usb_interface *intf = data->isoc;
682 struct usb_endpoint_descriptor *ep_desc;
683 int i, err;
684
685 if (!data->isoc)
686 return -ENODEV;
687
688 err = usb_set_interface(data->udev, 1, altsetting);
689 if (err < 0) {
690 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
691 return err;
692 }
693
694 data->isoc_altsetting = altsetting;
695
696 data->isoc_tx_ep = NULL;
697 data->isoc_rx_ep = NULL;
698
699 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
700 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
701
702 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
703 data->isoc_tx_ep = ep_desc;
704 continue;
705 }
706
707 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
708 data->isoc_rx_ep = ep_desc;
709 continue;
710 }
711 }
712
713 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
714 BT_ERR("%s invalid SCO descriptors", hdev->name);
715 return -ENODEV;
716 }
717
718 return 0;
719}
720
5e23b923
MH		 721static void btusb_work(struct work_struct *work)
722{
723 struct btusb_data *data = container_of(work, struct btusb_data, work);
724 struct hci_dev *hdev = data->hdev;
725
9bfa35fe
MH		 726 if (hdev->conn_hash.sco_num > 0) {
727 if (data->isoc_altsetting != 2) {
728 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
729 usb_kill_anchored_urbs(&data->isoc_anchor);
730
731 if (__set_isoc_interface(hdev, 2) < 0)
732 return;
733 }
734
735 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2eda66f4 736 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
9bfa35fe
MH		 737 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
738 else
2eda66f4 739 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
9bfa35fe
MH		 740 }
741 } else {
742 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
743 usb_kill_anchored_urbs(&data->isoc_anchor);
744
745 __set_isoc_interface(hdev, 0);
5e23b923
MH		 746 }
747}
748
749static int btusb_probe(struct usb_interface *intf,
750 const struct usb_device_id *id)
751{
752 struct usb_endpoint_descriptor *ep_desc;
753 struct btusb_data *data;
754 struct hci_dev *hdev;
755 int i, err;
756
757 BT_DBG("intf %p id %p", intf, id);
758
cfeb4145 759 /* interface numbers are hardcoded in the spec */
5e23b923
MH		 760 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
761 return -ENODEV;
762
763 if (!id->driver_info) {
764 const struct usb_device_id *match;
765 match = usb_match_id(intf, blacklist_table);
766 if (match)
767 id = match;
768 }
769
cfeb4145
MH		 770 if (id->driver_info == BTUSB_IGNORE)
771 return -ENODEV;
772
773 if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
774 return -ENODEV;
775
776 if (ignore_csr && id->driver_info & BTUSB_CSR)
777 return -ENODEV;
778
779 if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
780 return -ENODEV;
781
5e23b923
MH		 782 data = kzalloc(sizeof(*data), GFP_KERNEL);
783 if (!data)
784 return -ENOMEM;
785
786 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
787 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
788
789 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
790 data->intr_ep = ep_desc;
791 continue;
792 }
793
794 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
795 data->bulk_tx_ep = ep_desc;
796 continue;
797 }
798
799 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
800 data->bulk_rx_ep = ep_desc;
801 continue;
802 }
803 }
804
805 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {
806 kfree(data);
807 return -ENODEV;
808 }
809
7a9d4020
MH		 810 data->cmdreq_type = USB_TYPE_CLASS;
811
5e23b923 812 data->udev = interface_to_usbdev(intf);
5fbcd260 813 data->intf = intf;
5e23b923
MH		 814
815 spin_lock_init(&data->lock);
816
817 INIT_WORK(&data->work, btusb_work);
818
819 init_usb_anchor(&data->tx_anchor);
820 init_usb_anchor(&data->intr_anchor);
821 init_usb_anchor(&data->bulk_anchor);
9bfa35fe 822 init_usb_anchor(&data->isoc_anchor);
5e23b923
MH		 823
824 hdev = hci_alloc_dev();
825 if (!hdev) {
826 kfree(data);
827 return -ENOMEM;
828 }
829
830 hdev->type = HCI_USB;
831 hdev->driver_data = data;
832
833 data->hdev = hdev;
834
835 SET_HCIDEV_DEV(hdev, &intf->dev);
836
837 hdev->open = btusb_open;
838 hdev->close = btusb_close;
839 hdev->flush = btusb_flush;
840 hdev->send = btusb_send_frame;
841 hdev->destruct = btusb_destruct;
842 hdev->notify = btusb_notify;
843
844 hdev->owner = THIS_MODULE;
845
7a9d4020 846 /* Interface numbers are hardcoded in the specification */
9bfa35fe
MH		 847 data->isoc = usb_ifnum_to_if(data->udev, 1);
848
7a9d4020
MH		 849 if (!reset)
850 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
cfeb4145
MH		 851
852 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
853 if (!disable_scofix)
854 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
855 }
856
9bfa35fe
MH		 857 if (id->driver_info & BTUSB_BROKEN_ISOC)
858 data->isoc = NULL;
859
7a9d4020
MH		 860 if (id->driver_info & BTUSB_DIGIANSWER) {
861 data->cmdreq_type = USB_TYPE_VENDOR;
862 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
863 }
864
865 if (id->driver_info & BTUSB_CSR) {
866 struct usb_device *udev = data->udev;
867
868 /* Old firmware would otherwise execute USB reset */
869 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
870 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
871 }
872
cfeb4145 873 if (id->driver_info & BTUSB_SNIFFER) {
9bfa35fe 874 struct usb_device *udev = data->udev;
cfeb4145 875
7a9d4020 876 /* New sniffer firmware has crippled HCI interface */
cfeb4145
MH		 877 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
878 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
9bfa35fe
MH		 879
880 data->isoc = NULL;
cfeb4145
MH		 881 }
882
883 if (id->driver_info & BTUSB_BCM92035) {
884 unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 };
885 struct sk_buff *skb;
886
887 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
888 if (skb) {
889 memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
890 skb_queue_tail(&hdev->driver_init, skb);
891 }
892 }
5e23b923 893
9bfa35fe
MH		 894 if (data->isoc) {
895 err = usb_driver_claim_interface(&btusb_driver,
5fbcd260 896 data->isoc, data);
9bfa35fe
MH		 897 if (err < 0) {
898 hci_free_dev(hdev);
899 kfree(data);
900 return err;
901 }
902 }
903
5e23b923
MH		 904 err = hci_register_dev(hdev);
905 if (err < 0) {
906 hci_free_dev(hdev);
907 kfree(data);
908 return err;
909 }
910
911 usb_set_intfdata(intf, data);
912
913 return 0;
914}
915
916static void btusb_disconnect(struct usb_interface *intf)
917{
918 struct btusb_data *data = usb_get_intfdata(intf);
919 struct hci_dev *hdev;
920
921 BT_DBG("intf %p", intf);
922
923 if (!data)
924 return;
925
926 hdev = data->hdev;
927
5fbcd260 928 __hci_dev_hold(hdev);
9bfa35fe 929
5fbcd260
MH		 930 usb_set_intfdata(data->intf, NULL);
931
932 if (data->isoc)
933 usb_set_intfdata(data->isoc, NULL);
5e23b923
MH		 934
935 hci_unregister_dev(hdev);
936
5fbcd260
MH		 937 if (intf == data->isoc)
938 usb_driver_release_interface(&btusb_driver, data->intf);
939 else if (data->isoc)
940 usb_driver_release_interface(&btusb_driver, data->isoc);
941
942 __hci_dev_put(hdev);
943
5e23b923
MH		 944 hci_free_dev(hdev);
945}
946
6a88adf2
MH		 947static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
948{
949 struct btusb_data *data = usb_get_intfdata(intf);
950
951 BT_DBG("intf %p", intf);
952
953 if (data->suspend_count++)
954 return 0;
955
956 cancel_work_sync(&data->work);
957
958 usb_kill_anchored_urbs(&data->tx_anchor);
959
960 usb_kill_anchored_urbs(&data->isoc_anchor);
961 usb_kill_anchored_urbs(&data->bulk_anchor);
962 usb_kill_anchored_urbs(&data->intr_anchor);
963
964 return 0;
965}
966
967static int btusb_resume(struct usb_interface *intf)
968{
969 struct btusb_data *data = usb_get_intfdata(intf);
970 struct hci_dev *hdev = data->hdev;
971 int err;
972
973 BT_DBG("intf %p", intf);
974
975 if (--data->suspend_count)
976 return 0;
977
978 if (!test_bit(HCI_RUNNING, &hdev->flags))
979 return 0;
980
981 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
982 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
983 if (err < 0) {
984 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
985 return err;
986 }
987 }
988
989 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
990 if (btusb_submit_bulk_urb(hdev, GFP_NOIO) < 0)
991 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
992 else
993 btusb_submit_bulk_urb(hdev, GFP_NOIO);
994 }
995
996 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
997 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
998 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
999 else
1000 btusb_submit_isoc_urb(hdev, GFP_NOIO);
1001 }
1002
1003 return 0;
1004}
1005
5e23b923
MH		 1006static struct usb_driver btusb_driver = {
1007 .name = "btusb",
1008 .probe = btusb_probe,
1009 .disconnect = btusb_disconnect,
6a88adf2
MH		 1010 .suspend = btusb_suspend,
1011 .resume = btusb_resume,
5e23b923
MH		 1012 .id_table = btusb_table,
1013};
1014
1015static int __init btusb_init(void)
1016{
1017 BT_INFO("Generic Bluetooth USB driver ver %s", VERSION);
1018
1019 return usb_register(&btusb_driver);
1020}
1021
1022static void __exit btusb_exit(void)
1023{
1024 usb_deregister(&btusb_driver);
1025}
1026
1027module_init(btusb_init);
1028module_exit(btusb_exit);
1029
cfeb4145
MH		 1030module_param(ignore_dga, bool, 0644);
1031MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1032
1033module_param(ignore_csr, bool, 0644);
1034MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1035
1036module_param(ignore_sniffer, bool, 0644);
1037MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1038
1039module_param(disable_scofix, bool, 0644);
1040MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1041
1042module_param(force_scofix, bool, 0644);
1043MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1044
1045module_param(reset, bool, 0644);
1046MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1047
5e23b923
MH		 1048MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1049MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1050MODULE_VERSION(VERSION);
1051MODULE_LICENSE("GPL");
kernel source for telekom puls (alcatel/mediatek)