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Merge tag 'v3.10.96' into update
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / bluetooth / btusb.c
1 /*
2 *
3 * Generic Bluetooth USB driver
4 *
5 * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org>
6 *
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 *
22 */
23
24 #include <linux/module.h>
25 #include <linux/usb.h>
26 #include <linux/firmware.h>
27
28 #include <net/bluetooth/bluetooth.h>
29 #include <net/bluetooth/hci_core.h>
30
31 #define VERSION "0.6"
32
33 static bool ignore_dga;
34 static bool ignore_csr;
35 static bool ignore_sniffer;
36 static bool disable_scofix;
37 static bool force_scofix;
38
39 static bool reset = 1;
40
41 static struct usb_driver btusb_driver;
42
43 #define BTUSB_IGNORE 0x01
44 #define BTUSB_DIGIANSWER 0x02
45 #define BTUSB_CSR 0x04
46 #define BTUSB_SNIFFER 0x08
47 #define BTUSB_BCM92035 0x10
48 #define BTUSB_BROKEN_ISOC 0x20
49 #define BTUSB_WRONG_SCO_MTU 0x40
50 #define BTUSB_ATH3012 0x80
51 #define BTUSB_INTEL 0x100
52 #define BTUSB_INTEL_BOOT 0x200
53
54 static struct usb_device_id btusb_table[] = {
55 /* Generic Bluetooth USB device */
56 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
57
58 /* Apple-specific (Broadcom) devices */
59 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01) },
60
61 /* MediaTek MT76x0E */
62 { USB_DEVICE(0x0e8d, 0x763f) },
63
64 /* Broadcom SoftSailing reporting vendor specific */
65 { USB_DEVICE(0x0a5c, 0x21e1) },
66
67 /* Apple MacBookPro 7,1 */
68 { USB_DEVICE(0x05ac, 0x8213) },
69
70 /* Apple iMac11,1 */
71 { USB_DEVICE(0x05ac, 0x8215) },
72
73 /* Apple MacBookPro6,2 */
74 { USB_DEVICE(0x05ac, 0x8218) },
75
76 /* Apple MacBookAir3,1, MacBookAir3,2 */
77 { USB_DEVICE(0x05ac, 0x821b) },
78
79 /* Apple MacBookAir4,1 */
80 { USB_DEVICE(0x05ac, 0x821f) },
81
82 /* Apple MacBookPro8,2 */
83 { USB_DEVICE(0x05ac, 0x821a) },
84
85 /* Apple MacMini5,1 */
86 { USB_DEVICE(0x05ac, 0x8281) },
87
88 /* AVM BlueFRITZ! USB v2.0 */
89 { USB_DEVICE(0x057c, 0x3800) },
90
91 /* Bluetooth Ultraport Module from IBM */
92 { USB_DEVICE(0x04bf, 0x030a) },
93
94 /* ALPS Modules with non-standard id */
95 { USB_DEVICE(0x044e, 0x3001) },
96 { USB_DEVICE(0x044e, 0x3002) },
97
98 /* Ericsson with non-standard id */
99 { USB_DEVICE(0x0bdb, 0x1002) },
100
101 /* Canyon CN-BTU1 with HID interfaces */
102 { USB_DEVICE(0x0c10, 0x0000) },
103
104 /* Broadcom BCM20702A0 */
105 { USB_DEVICE(0x0b05, 0x17b5) },
106 { USB_DEVICE(0x0b05, 0x17cb) },
107 { USB_DEVICE(0x04ca, 0x2003) },
108 { USB_DEVICE(0x0489, 0xe042) },
109 { USB_DEVICE(0x413c, 0x8197) },
110
111 /* Foxconn - Hon Hai */
112 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01) },
113
114 /*Broadcom devices with vendor specific id */
115 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01) },
116
117 /* IMC Networks - Broadcom based */
118 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01) },
119
120 /* Intel Bluetooth USB Bootloader (RAM module) */
121 { USB_DEVICE(0x8087, 0x0a5a),
122 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
123
124 { } /* Terminating entry */
125 };
126
127 MODULE_DEVICE_TABLE(usb, btusb_table);
128
129 static struct usb_device_id blacklist_table[] = {
130 /* CSR BlueCore devices */
131 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
132
133 /* Broadcom BCM2033 without firmware */
134 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
135
136 /* Atheros 3011 with sflash firmware */
137 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
138 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
139 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
140 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
141 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
142 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
143
144 /* Atheros AR9285 Malbec with sflash firmware */
145 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
146
147 /* Atheros 3012 with sflash firmware */
148 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
149 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
150 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
151 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
152 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
153 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
154 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
155 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
156 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
157 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
158 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
159 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
160 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
161 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
162 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
163 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
164 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
165 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
166 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
167 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
168 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
169 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
170 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
171 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
172 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
173 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
174
175 /* Atheros AR5BBU12 with sflash firmware */
176 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
177
178 /* Atheros AR5BBU12 with sflash firmware */
179 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
180 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
181
182 /* Broadcom BCM2035 */
183 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
184 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
185 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
186
187 /* Broadcom BCM2045 */
188 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
189 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
190
191 /* IBM/Lenovo ThinkPad with Broadcom chip */
192 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
193 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
194
195 /* HP laptop with Broadcom chip */
196 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
197
198 /* Dell laptop with Broadcom chip */
199 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
200
201 /* Dell Wireless 370 and 410 devices */
202 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
203 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
204
205 /* Belkin F8T012 and F8T013 devices */
206 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
207 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
208
209 /* Asus WL-BTD202 device */
210 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
211
212 /* Kensington Bluetooth USB adapter */
213 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
214
215 /* RTX Telecom based adapters with buggy SCO support */
216 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
217 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
218
219 /* CONWISE Technology based adapters with buggy SCO support */
220 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
221
222 /* Digianswer devices */
223 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
224 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
225
226 /* CSR BlueCore Bluetooth Sniffer */
227 { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
228
229 /* Frontline ComProbe Bluetooth Sniffer */
230 { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
231
232 /* Intel Bluetooth device */
233 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
234
235 { } /* Terminating entry */
236 };
237
238 #define BTUSB_MAX_ISOC_FRAMES 10
239
240 #define BTUSB_INTR_RUNNING 0
241 #define BTUSB_BULK_RUNNING 1
242 #define BTUSB_ISOC_RUNNING 2
243 #define BTUSB_SUSPENDING 3
244 #define BTUSB_DID_ISO_RESUME 4
245
246 struct btusb_data {
247 struct hci_dev *hdev;
248 struct usb_device *udev;
249 struct usb_interface *intf;
250 struct usb_interface *isoc;
251
252 spinlock_t lock;
253
254 unsigned long flags;
255
256 struct work_struct work;
257 struct work_struct waker;
258
259 struct usb_anchor tx_anchor;
260 struct usb_anchor intr_anchor;
261 struct usb_anchor bulk_anchor;
262 struct usb_anchor isoc_anchor;
263 struct usb_anchor deferred;
264 int tx_in_flight;
265 spinlock_t txlock;
266
267 struct usb_endpoint_descriptor *intr_ep;
268 struct usb_endpoint_descriptor *bulk_tx_ep;
269 struct usb_endpoint_descriptor *bulk_rx_ep;
270 struct usb_endpoint_descriptor *isoc_tx_ep;
271 struct usb_endpoint_descriptor *isoc_rx_ep;
272
273 __u8 cmdreq_type;
274
275 unsigned int sco_num;
276 int isoc_altsetting;
277 int suspend_count;
278 };
279
280 static int inc_tx(struct btusb_data *data)
281 {
282 unsigned long flags;
283 int rv;
284
285 spin_lock_irqsave(&data->txlock, flags);
286 rv = test_bit(BTUSB_SUSPENDING, &data->flags);
287 if (!rv)
288 data->tx_in_flight++;
289 spin_unlock_irqrestore(&data->txlock, flags);
290
291 return rv;
292 }
293
294 static void btusb_intr_complete(struct urb *urb)
295 {
296 struct hci_dev *hdev = urb->context;
297 struct btusb_data *data = hci_get_drvdata(hdev);
298 int err;
299
300 BT_DBG("%s urb %p status %d count %d", hdev->name,
301 urb, urb->status, urb->actual_length);
302
303 if (!test_bit(HCI_RUNNING, &hdev->flags))
304 return;
305
306 if (urb->status == 0) {
307 hdev->stat.byte_rx += urb->actual_length;
308
309 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
310 urb->transfer_buffer,
311 urb->actual_length) < 0) {
312 BT_ERR("%s corrupted event packet", hdev->name);
313 hdev->stat.err_rx++;
314 }
315 } else if (urb->status == -ENOENT) {
316 /* Avoid suspend failed when usb_kill_urb */
317 return;
318 }
319
320 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
321 return;
322
323 usb_mark_last_busy(data->udev);
324 usb_anchor_urb(urb, &data->intr_anchor);
325
326 err = usb_submit_urb(urb, GFP_ATOMIC);
327 if (err < 0) {
328 /* -EPERM: urb is being killed;
329 * -ENODEV: device got disconnected */
330 if (err != -EPERM && err != -ENODEV)
331 BT_ERR("%s urb %p failed to resubmit (%d)",
332 hdev->name, urb, -err);
333 usb_unanchor_urb(urb);
334 }
335 }
336
337 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
338 {
339 struct btusb_data *data = hci_get_drvdata(hdev);
340 struct urb *urb;
341 unsigned char *buf;
342 unsigned int pipe;
343 int err, size;
344
345 BT_DBG("%s", hdev->name);
346
347 if (!data->intr_ep)
348 return -ENODEV;
349
350 urb = usb_alloc_urb(0, mem_flags);
351 if (!urb)
352 return -ENOMEM;
353
354 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
355
356 buf = kmalloc(size, mem_flags);
357 if (!buf) {
358 usb_free_urb(urb);
359 return -ENOMEM;
360 }
361
362 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
363
364 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
365 btusb_intr_complete, hdev,
366 data->intr_ep->bInterval);
367
368 urb->transfer_flags |= URB_FREE_BUFFER;
369
370 usb_anchor_urb(urb, &data->intr_anchor);
371
372 err = usb_submit_urb(urb, mem_flags);
373 if (err < 0) {
374 if (err != -EPERM && err != -ENODEV)
375 BT_ERR("%s urb %p submission failed (%d)",
376 hdev->name, urb, -err);
377 usb_unanchor_urb(urb);
378 }
379
380 usb_free_urb(urb);
381
382 return err;
383 }
384
385 static void btusb_bulk_complete(struct urb *urb)
386 {
387 struct hci_dev *hdev = urb->context;
388 struct btusb_data *data = hci_get_drvdata(hdev);
389 int err;
390
391 BT_DBG("%s urb %p status %d count %d", hdev->name,
392 urb, urb->status, urb->actual_length);
393
394 if (!test_bit(HCI_RUNNING, &hdev->flags))
395 return;
396
397 if (urb->status == 0) {
398 hdev->stat.byte_rx += urb->actual_length;
399
400 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
401 urb->transfer_buffer,
402 urb->actual_length) < 0) {
403 BT_ERR("%s corrupted ACL packet", hdev->name);
404 hdev->stat.err_rx++;
405 }
406 } else if (urb->status == -ENOENT) {
407 /* Avoid suspend failed when usb_kill_urb */
408 return;
409 }
410
411 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
412 return;
413
414 usb_anchor_urb(urb, &data->bulk_anchor);
415 usb_mark_last_busy(data->udev);
416
417 err = usb_submit_urb(urb, GFP_ATOMIC);
418 if (err < 0) {
419 /* -EPERM: urb is being killed;
420 * -ENODEV: device got disconnected */
421 if (err != -EPERM && err != -ENODEV)
422 BT_ERR("%s urb %p failed to resubmit (%d)",
423 hdev->name, urb, -err);
424 usb_unanchor_urb(urb);
425 }
426 }
427
428 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
429 {
430 struct btusb_data *data = hci_get_drvdata(hdev);
431 struct urb *urb;
432 unsigned char *buf;
433 unsigned int pipe;
434 int err, size = HCI_MAX_FRAME_SIZE;
435
436 BT_DBG("%s", hdev->name);
437
438 if (!data->bulk_rx_ep)
439 return -ENODEV;
440
441 urb = usb_alloc_urb(0, mem_flags);
442 if (!urb)
443 return -ENOMEM;
444
445 buf = kmalloc(size, mem_flags);
446 if (!buf) {
447 usb_free_urb(urb);
448 return -ENOMEM;
449 }
450
451 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
452
453 usb_fill_bulk_urb(urb, data->udev, pipe,
454 buf, size, btusb_bulk_complete, hdev);
455
456 urb->transfer_flags |= URB_FREE_BUFFER;
457
458 usb_mark_last_busy(data->udev);
459 usb_anchor_urb(urb, &data->bulk_anchor);
460
461 err = usb_submit_urb(urb, mem_flags);
462 if (err < 0) {
463 if (err != -EPERM && err != -ENODEV)
464 BT_ERR("%s urb %p submission failed (%d)",
465 hdev->name, urb, -err);
466 usb_unanchor_urb(urb);
467 }
468
469 usb_free_urb(urb);
470
471 return err;
472 }
473
474 static void btusb_isoc_complete(struct urb *urb)
475 {
476 struct hci_dev *hdev = urb->context;
477 struct btusb_data *data = hci_get_drvdata(hdev);
478 int i, err;
479
480 BT_DBG("%s urb %p status %d count %d", hdev->name,
481 urb, urb->status, urb->actual_length);
482
483 if (!test_bit(HCI_RUNNING, &hdev->flags))
484 return;
485
486 if (urb->status == 0) {
487 for (i = 0; i < urb->number_of_packets; i++) {
488 unsigned int offset = urb->iso_frame_desc[i].offset;
489 unsigned int length = urb->iso_frame_desc[i].actual_length;
490
491 if (urb->iso_frame_desc[i].status)
492 continue;
493
494 hdev->stat.byte_rx += length;
495
496 if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
497 urb->transfer_buffer + offset,
498 length) < 0) {
499 BT_ERR("%s corrupted SCO packet", hdev->name);
500 hdev->stat.err_rx++;
501 }
502 }
503 } else if (urb->status == -ENOENT) {
504 /* Avoid suspend failed when usb_kill_urb */
505 return;
506 }
507
508 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
509 return;
510
511 usb_anchor_urb(urb, &data->isoc_anchor);
512
513 err = usb_submit_urb(urb, GFP_ATOMIC);
514 if (err < 0) {
515 /* -EPERM: urb is being killed;
516 * -ENODEV: device got disconnected */
517 if (err != -EPERM && err != -ENODEV)
518 BT_ERR("%s urb %p failed to resubmit (%d)",
519 hdev->name, urb, -err);
520 usb_unanchor_urb(urb);
521 }
522 }
523
524 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
525 {
526 int i, offset = 0;
527
528 BT_DBG("len %d mtu %d", len, mtu);
529
530 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
531 i++, offset += mtu, len -= mtu) {
532 urb->iso_frame_desc[i].offset = offset;
533 urb->iso_frame_desc[i].length = mtu;
534 }
535
536 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
537 urb->iso_frame_desc[i].offset = offset;
538 urb->iso_frame_desc[i].length = len;
539 i++;
540 }
541
542 urb->number_of_packets = i;
543 }
544
545 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
546 {
547 struct btusb_data *data = hci_get_drvdata(hdev);
548 struct urb *urb;
549 unsigned char *buf;
550 unsigned int pipe;
551 int err, size;
552
553 BT_DBG("%s", hdev->name);
554
555 if (!data->isoc_rx_ep)
556 return -ENODEV;
557
558 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
559 if (!urb)
560 return -ENOMEM;
561
562 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
563 BTUSB_MAX_ISOC_FRAMES;
564
565 buf = kmalloc(size, mem_flags);
566 if (!buf) {
567 usb_free_urb(urb);
568 return -ENOMEM;
569 }
570
571 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
572
573 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
574 hdev, data->isoc_rx_ep->bInterval);
575
576 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
577
578 __fill_isoc_descriptor(urb, size,
579 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
580
581 usb_anchor_urb(urb, &data->isoc_anchor);
582
583 err = usb_submit_urb(urb, mem_flags);
584 if (err < 0) {
585 if (err != -EPERM && err != -ENODEV)
586 BT_ERR("%s urb %p submission failed (%d)",
587 hdev->name, urb, -err);
588 usb_unanchor_urb(urb);
589 }
590
591 usb_free_urb(urb);
592
593 return err;
594 }
595
596 static void btusb_tx_complete(struct urb *urb)
597 {
598 struct sk_buff *skb = urb->context;
599 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
600 struct btusb_data *data = hci_get_drvdata(hdev);
601
602 BT_DBG("%s urb %p status %d count %d", hdev->name,
603 urb, urb->status, urb->actual_length);
604
605 if (!test_bit(HCI_RUNNING, &hdev->flags))
606 goto done;
607
608 if (!urb->status)
609 hdev->stat.byte_tx += urb->transfer_buffer_length;
610 else
611 hdev->stat.err_tx++;
612
613 done:
614 spin_lock(&data->txlock);
615 data->tx_in_flight--;
616 spin_unlock(&data->txlock);
617
618 kfree(urb->setup_packet);
619
620 kfree_skb(skb);
621 }
622
623 static void btusb_isoc_tx_complete(struct urb *urb)
624 {
625 struct sk_buff *skb = urb->context;
626 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
627
628 BT_DBG("%s urb %p status %d count %d", hdev->name,
629 urb, urb->status, urb->actual_length);
630
631 if (!test_bit(HCI_RUNNING, &hdev->flags))
632 goto done;
633
634 if (!urb->status)
635 hdev->stat.byte_tx += urb->transfer_buffer_length;
636 else
637 hdev->stat.err_tx++;
638
639 done:
640 kfree(urb->setup_packet);
641
642 kfree_skb(skb);
643 }
644
645 static int btusb_open(struct hci_dev *hdev)
646 {
647 struct btusb_data *data = hci_get_drvdata(hdev);
648 int err;
649
650 BT_DBG("%s", hdev->name);
651
652 err = usb_autopm_get_interface(data->intf);
653 if (err < 0)
654 return err;
655
656 data->intf->needs_remote_wakeup = 1;
657
658 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
659 goto done;
660
661 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
662 goto done;
663
664 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
665 if (err < 0)
666 goto failed;
667
668 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
669 if (err < 0) {
670 usb_kill_anchored_urbs(&data->intr_anchor);
671 goto failed;
672 }
673
674 set_bit(BTUSB_BULK_RUNNING, &data->flags);
675 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
676
677 done:
678 usb_autopm_put_interface(data->intf);
679 return 0;
680
681 failed:
682 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
683 clear_bit(HCI_RUNNING, &hdev->flags);
684 usb_autopm_put_interface(data->intf);
685 return err;
686 }
687
688 static void btusb_stop_traffic(struct btusb_data *data)
689 {
690 usb_kill_anchored_urbs(&data->intr_anchor);
691 usb_kill_anchored_urbs(&data->bulk_anchor);
692 usb_kill_anchored_urbs(&data->isoc_anchor);
693 }
694
695 static int btusb_close(struct hci_dev *hdev)
696 {
697 struct btusb_data *data = hci_get_drvdata(hdev);
698 int err;
699
700 BT_DBG("%s", hdev->name);
701
702 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
703 return 0;
704
705 cancel_work_sync(&data->work);
706 cancel_work_sync(&data->waker);
707
708 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
709 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
710 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
711
712 btusb_stop_traffic(data);
713 err = usb_autopm_get_interface(data->intf);
714 if (err < 0)
715 goto failed;
716
717 data->intf->needs_remote_wakeup = 0;
718 usb_autopm_put_interface(data->intf);
719
720 failed:
721 usb_scuttle_anchored_urbs(&data->deferred);
722 return 0;
723 }
724
725 static int btusb_flush(struct hci_dev *hdev)
726 {
727 struct btusb_data *data = hci_get_drvdata(hdev);
728
729 BT_DBG("%s", hdev->name);
730
731 usb_kill_anchored_urbs(&data->tx_anchor);
732
733 return 0;
734 }
735
736 static int btusb_send_frame(struct sk_buff *skb)
737 {
738 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
739 struct btusb_data *data = hci_get_drvdata(hdev);
740 struct usb_ctrlrequest *dr;
741 struct urb *urb;
742 unsigned int pipe;
743 int err;
744
745 BT_DBG("%s", hdev->name);
746
747 if (!test_bit(HCI_RUNNING, &hdev->flags))
748 return -EBUSY;
749
750 switch (bt_cb(skb)->pkt_type) {
751 case HCI_COMMAND_PKT:
752 urb = usb_alloc_urb(0, GFP_ATOMIC);
753 if (!urb)
754 return -ENOMEM;
755
756 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
757 if (!dr) {
758 usb_free_urb(urb);
759 return -ENOMEM;
760 }
761
762 dr->bRequestType = data->cmdreq_type;
763 dr->bRequest = 0;
764 dr->wIndex = 0;
765 dr->wValue = 0;
766 dr->wLength = __cpu_to_le16(skb->len);
767
768 pipe = usb_sndctrlpipe(data->udev, 0x00);
769
770 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
771 skb->data, skb->len, btusb_tx_complete, skb);
772
773 hdev->stat.cmd_tx++;
774 break;
775
776 case HCI_ACLDATA_PKT:
777 if (!data->bulk_tx_ep)
778 return -ENODEV;
779
780 urb = usb_alloc_urb(0, GFP_ATOMIC);
781 if (!urb)
782 return -ENOMEM;
783
784 pipe = usb_sndbulkpipe(data->udev,
785 data->bulk_tx_ep->bEndpointAddress);
786
787 usb_fill_bulk_urb(urb, data->udev, pipe,
788 skb->data, skb->len, btusb_tx_complete, skb);
789
790 hdev->stat.acl_tx++;
791 break;
792
793 case HCI_SCODATA_PKT:
794 if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
795 return -ENODEV;
796
797 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
798 if (!urb)
799 return -ENOMEM;
800
801 pipe = usb_sndisocpipe(data->udev,
802 data->isoc_tx_ep->bEndpointAddress);
803
804 usb_fill_int_urb(urb, data->udev, pipe,
805 skb->data, skb->len, btusb_isoc_tx_complete,
806 skb, data->isoc_tx_ep->bInterval);
807
808 urb->transfer_flags = URB_ISO_ASAP;
809
810 __fill_isoc_descriptor(urb, skb->len,
811 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
812
813 hdev->stat.sco_tx++;
814 goto skip_waking;
815
816 default:
817 return -EILSEQ;
818 }
819
820 err = inc_tx(data);
821 if (err) {
822 usb_anchor_urb(urb, &data->deferred);
823 schedule_work(&data->waker);
824 err = 0;
825 goto done;
826 }
827
828 skip_waking:
829 usb_anchor_urb(urb, &data->tx_anchor);
830
831 err = usb_submit_urb(urb, GFP_ATOMIC);
832 if (err < 0) {
833 if (err != -EPERM && err != -ENODEV)
834 BT_ERR("%s urb %p submission failed (%d)",
835 hdev->name, urb, -err);
836 kfree(urb->setup_packet);
837 usb_unanchor_urb(urb);
838 } else {
839 usb_mark_last_busy(data->udev);
840 }
841
842 done:
843 usb_free_urb(urb);
844 return err;
845 }
846
847 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
848 {
849 struct btusb_data *data = hci_get_drvdata(hdev);
850
851 BT_DBG("%s evt %d", hdev->name, evt);
852
853 if (hdev->conn_hash.sco_num != data->sco_num) {
854 data->sco_num = hdev->conn_hash.sco_num;
855 schedule_work(&data->work);
856 }
857 }
858
859 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
860 {
861 struct btusb_data *data = hci_get_drvdata(hdev);
862 struct usb_interface *intf = data->isoc;
863 struct usb_endpoint_descriptor *ep_desc;
864 int i, err;
865
866 if (!data->isoc)
867 return -ENODEV;
868
869 err = usb_set_interface(data->udev, 1, altsetting);
870 if (err < 0) {
871 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
872 return err;
873 }
874
875 data->isoc_altsetting = altsetting;
876
877 data->isoc_tx_ep = NULL;
878 data->isoc_rx_ep = NULL;
879
880 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
881 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
882
883 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
884 data->isoc_tx_ep = ep_desc;
885 continue;
886 }
887
888 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
889 data->isoc_rx_ep = ep_desc;
890 continue;
891 }
892 }
893
894 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
895 BT_ERR("%s invalid SCO descriptors", hdev->name);
896 return -ENODEV;
897 }
898
899 return 0;
900 }
901
902 static void btusb_work(struct work_struct *work)
903 {
904 struct btusb_data *data = container_of(work, struct btusb_data, work);
905 struct hci_dev *hdev = data->hdev;
906 int new_alts;
907 int err;
908
909 if (hdev->conn_hash.sco_num > 0) {
910 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
911 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
912 if (err < 0) {
913 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
914 usb_kill_anchored_urbs(&data->isoc_anchor);
915 return;
916 }
917
918 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
919 }
920
921 if (hdev->voice_setting & 0x0020) {
922 static const int alts[3] = { 2, 4, 5 };
923 new_alts = alts[hdev->conn_hash.sco_num - 1];
924 } else {
925 new_alts = hdev->conn_hash.sco_num;
926 }
927
928 if (data->isoc_altsetting != new_alts) {
929 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
930 usb_kill_anchored_urbs(&data->isoc_anchor);
931
932 if (__set_isoc_interface(hdev, new_alts) < 0)
933 return;
934 }
935
936 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
937 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
938 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
939 else
940 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
941 }
942 } else {
943 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
944 usb_kill_anchored_urbs(&data->isoc_anchor);
945
946 __set_isoc_interface(hdev, 0);
947 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
948 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
949 }
950 }
951
952 static void btusb_waker(struct work_struct *work)
953 {
954 struct btusb_data *data = container_of(work, struct btusb_data, waker);
955 int err;
956
957 err = usb_autopm_get_interface(data->intf);
958 if (err < 0)
959 return;
960
961 usb_autopm_put_interface(data->intf);
962 }
963
964 static int btusb_setup_bcm92035(struct hci_dev *hdev)
965 {
966 struct sk_buff *skb;
967 u8 val = 0x00;
968
969 BT_DBG("%s", hdev->name);
970
971 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
972 if (IS_ERR(skb))
973 BT_ERR("BCM92035 command failed (%ld)", -PTR_ERR(skb));
974 else
975 kfree_skb(skb);
976
977 return 0;
978 }
979
980 struct intel_version {
981 u8 status;
982 u8 hw_platform;
983 u8 hw_variant;
984 u8 hw_revision;
985 u8 fw_variant;
986 u8 fw_revision;
987 u8 fw_build_num;
988 u8 fw_build_ww;
989 u8 fw_build_yy;
990 u8 fw_patch_num;
991 } __packed;
992
993 static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
994 struct intel_version *ver)
995 {
996 const struct firmware *fw;
997 char fwname[64];
998 int ret;
999
1000 snprintf(fwname, sizeof(fwname),
1001 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1002 ver->hw_platform, ver->hw_variant, ver->hw_revision,
1003 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
1004 ver->fw_build_ww, ver->fw_build_yy);
1005
1006 ret = request_firmware(&fw, fwname, &hdev->dev);
1007 if (ret < 0) {
1008 if (ret == -EINVAL) {
1009 BT_ERR("%s Intel firmware file request failed (%d)",
1010 hdev->name, ret);
1011 return NULL;
1012 }
1013
1014 BT_ERR("%s failed to open Intel firmware file: %s(%d)",
1015 hdev->name, fwname, ret);
1016
1017 /* If the correct firmware patch file is not found, use the
1018 * default firmware patch file instead
1019 */
1020 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1021 ver->hw_platform, ver->hw_variant);
1022 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1023 BT_ERR("%s failed to open default Intel fw file: %s",
1024 hdev->name, fwname);
1025 return NULL;
1026 }
1027 }
1028
1029 BT_INFO("%s: Intel Bluetooth firmware file: %s", hdev->name, fwname);
1030
1031 return fw;
1032 }
1033
1034 static int btusb_setup_intel_patching(struct hci_dev *hdev,
1035 const struct firmware *fw,
1036 const u8 **fw_ptr, int *disable_patch)
1037 {
1038 struct sk_buff *skb;
1039 struct hci_command_hdr *cmd;
1040 const u8 *cmd_param;
1041 struct hci_event_hdr *evt = NULL;
1042 const u8 *evt_param = NULL;
1043 int remain = fw->size - (*fw_ptr - fw->data);
1044
1045 /* The first byte indicates the types of the patch command or event.
1046 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1047 * in the current firmware buffer doesn't start with 0x01 or
1048 * the size of remain buffer is smaller than HCI command header,
1049 * the firmware file is corrupted and it should stop the patching
1050 * process.
1051 */
1052 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1053 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name);
1054 return -EINVAL;
1055 }
1056 (*fw_ptr)++;
1057 remain--;
1058
1059 cmd = (struct hci_command_hdr *)(*fw_ptr);
1060 *fw_ptr += sizeof(*cmd);
1061 remain -= sizeof(*cmd);
1062
1063 /* Ensure that the remain firmware data is long enough than the length
1064 * of command parameter. If not, the firmware file is corrupted.
1065 */
1066 if (remain < cmd->plen) {
1067 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name);
1068 return -EFAULT;
1069 }
1070
1071 /* If there is a command that loads a patch in the firmware
1072 * file, then enable the patch upon success, otherwise just
1073 * disable the manufacturer mode, for example patch activation
1074 * is not required when the default firmware patch file is used
1075 * because there are no patch data to load.
1076 */
1077 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1078 *disable_patch = 0;
1079
1080 cmd_param = *fw_ptr;
1081 *fw_ptr += cmd->plen;
1082 remain -= cmd->plen;
1083
1084 /* This reads the expected events when the above command is sent to the
1085 * device. Some vendor commands expects more than one events, for
1086 * example command status event followed by vendor specific event.
1087 * For this case, it only keeps the last expected event. so the command
1088 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1089 * last expected event.
1090 */
1091 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1092 (*fw_ptr)++;
1093 remain--;
1094
1095 evt = (struct hci_event_hdr *)(*fw_ptr);
1096 *fw_ptr += sizeof(*evt);
1097 remain -= sizeof(*evt);
1098
1099 if (remain < evt->plen) {
1100 BT_ERR("%s Intel fw corrupted: invalid evt len",
1101 hdev->name);
1102 return -EFAULT;
1103 }
1104
1105 evt_param = *fw_ptr;
1106 *fw_ptr += evt->plen;
1107 remain -= evt->plen;
1108 }
1109
1110 /* Every HCI commands in the firmware file has its correspond event.
1111 * If event is not found or remain is smaller than zero, the firmware
1112 * file is corrupted.
1113 */
1114 if (!evt || !evt_param || remain < 0) {
1115 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name);
1116 return -EFAULT;
1117 }
1118
1119 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1120 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1121 if (IS_ERR(skb)) {
1122 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)",
1123 hdev->name, cmd->opcode, PTR_ERR(skb));
1124 return PTR_ERR(skb);
1125 }
1126
1127 /* It ensures that the returned event matches the event data read from
1128 * the firmware file. At fist, it checks the length and then
1129 * the contents of the event.
1130 */
1131 if (skb->len != evt->plen) {
1132 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name,
1133 le16_to_cpu(cmd->opcode));
1134 kfree_skb(skb);
1135 return -EFAULT;
1136 }
1137
1138 if (memcmp(skb->data, evt_param, evt->plen)) {
1139 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)",
1140 hdev->name, le16_to_cpu(cmd->opcode));
1141 kfree_skb(skb);
1142 return -EFAULT;
1143 }
1144 kfree_skb(skb);
1145
1146 return 0;
1147 }
1148
1149 static int btusb_setup_intel(struct hci_dev *hdev)
1150 {
1151 struct sk_buff *skb;
1152 const struct firmware *fw;
1153 const u8 *fw_ptr;
1154 int disable_patch;
1155 struct intel_version *ver;
1156
1157 const u8 mfg_enable[] = { 0x01, 0x00 };
1158 const u8 mfg_disable[] = { 0x00, 0x00 };
1159 const u8 mfg_reset_deactivate[] = { 0x00, 0x01 };
1160 const u8 mfg_reset_activate[] = { 0x00, 0x02 };
1161
1162 BT_DBG("%s", hdev->name);
1163
1164 /* The controller has a bug with the first HCI command sent to it
1165 * returning number of completed commands as zero. This would stall the
1166 * command processing in the Bluetooth core.
1167 *
1168 * As a workaround, send HCI Reset command first which will reset the
1169 * number of completed commands and allow normal command processing
1170 * from now on.
1171 */
1172 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1173 if (IS_ERR(skb)) {
1174 BT_ERR("%s sending initial HCI reset command failed (%ld)",
1175 hdev->name, PTR_ERR(skb));
1176 return PTR_ERR(skb);
1177 }
1178 kfree_skb(skb);
1179
1180 /* Read Intel specific controller version first to allow selection of
1181 * which firmware file to load.
1182 *
1183 * The returned information are hardware variant and revision plus
1184 * firmware variant, revision and build number.
1185 */
1186 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
1187 if (IS_ERR(skb)) {
1188 BT_ERR("%s reading Intel fw version command failed (%ld)",
1189 hdev->name, PTR_ERR(skb));
1190 return PTR_ERR(skb);
1191 }
1192
1193 if (skb->len != sizeof(*ver)) {
1194 BT_ERR("%s Intel version event length mismatch", hdev->name);
1195 kfree_skb(skb);
1196 return -EIO;
1197 }
1198
1199 ver = (struct intel_version *)skb->data;
1200 if (ver->status) {
1201 BT_ERR("%s Intel fw version event failed (%02x)", hdev->name,
1202 ver->status);
1203 kfree_skb(skb);
1204 return -bt_to_errno(ver->status);
1205 }
1206
1207 BT_INFO("%s: read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1208 hdev->name, ver->hw_platform, ver->hw_variant,
1209 ver->hw_revision, ver->fw_variant, ver->fw_revision,
1210 ver->fw_build_num, ver->fw_build_ww, ver->fw_build_yy,
1211 ver->fw_patch_num);
1212
1213 /* fw_patch_num indicates the version of patch the device currently
1214 * have. If there is no patch data in the device, it is always 0x00.
1215 * So, if it is other than 0x00, no need to patch the deivce again.
1216 */
1217 if (ver->fw_patch_num) {
1218 BT_INFO("%s: Intel device is already patched. patch num: %02x",
1219 hdev->name, ver->fw_patch_num);
1220 kfree_skb(skb);
1221 return 0;
1222 }
1223
1224 /* Opens the firmware patch file based on the firmware version read
1225 * from the controller. If it fails to open the matching firmware
1226 * patch file, it tries to open the default firmware patch file.
1227 * If no patch file is found, allow the device to operate without
1228 * a patch.
1229 */
1230 fw = btusb_setup_intel_get_fw(hdev, ver);
1231 if (!fw) {
1232 kfree_skb(skb);
1233 return 0;
1234 }
1235 fw_ptr = fw->data;
1236
1237 kfree_skb(skb);
1238
1239 /* This Intel specific command enables the manufacturer mode of the
1240 * controller.
1241 *
1242 * Only while this mode is enabled, the driver can download the
1243 * firmware patch data and configuration parameters.
1244 */
1245 skb = __hci_cmd_sync(hdev, 0xfc11, 2, mfg_enable, HCI_INIT_TIMEOUT);
1246 if (IS_ERR(skb)) {
1247 BT_ERR("%s entering Intel manufacturer mode failed (%ld)",
1248 hdev->name, PTR_ERR(skb));
1249 release_firmware(fw);
1250 return PTR_ERR(skb);
1251 }
1252
1253 if (skb->data[0]) {
1254 u8 evt_status = skb->data[0];
1255 BT_ERR("%s enable Intel manufacturer mode event failed (%02x)",
1256 hdev->name, evt_status);
1257 kfree_skb(skb);
1258 release_firmware(fw);
1259 return -bt_to_errno(evt_status);
1260 }
1261 kfree_skb(skb);
1262
1263 disable_patch = 1;
1264
1265 /* The firmware data file consists of list of Intel specific HCI
1266 * commands and its expected events. The first byte indicates the
1267 * type of the message, either HCI command or HCI event.
1268 *
1269 * It reads the command and its expected event from the firmware file,
1270 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1271 * the returned event is compared with the event read from the firmware
1272 * file and it will continue until all the messages are downloaded to
1273 * the controller.
1274 *
1275 * Once the firmware patching is completed successfully,
1276 * the manufacturer mode is disabled with reset and activating the
1277 * downloaded patch.
1278 *
1279 * If the firmware patching fails, the manufacturer mode is
1280 * disabled with reset and deactivating the patch.
1281 *
1282 * If the default patch file is used, no reset is done when disabling
1283 * the manufacturer.
1284 */
1285 while (fw->size > fw_ptr - fw->data) {
1286 int ret;
1287
1288 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1289 &disable_patch);
1290 if (ret < 0)
1291 goto exit_mfg_deactivate;
1292 }
1293
1294 release_firmware(fw);
1295
1296 if (disable_patch)
1297 goto exit_mfg_disable;
1298
1299 /* Patching completed successfully and disable the manufacturer mode
1300 * with reset and activate the downloaded firmware patches.
1301 */
1302 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_activate),
1303 mfg_reset_activate, HCI_INIT_TIMEOUT);
1304 if (IS_ERR(skb)) {
1305 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1306 hdev->name, PTR_ERR(skb));
1307 return PTR_ERR(skb);
1308 }
1309 kfree_skb(skb);
1310
1311 BT_INFO("%s: Intel Bluetooth firmware patch completed and activated",
1312 hdev->name);
1313
1314 return 0;
1315
1316 exit_mfg_disable:
1317 /* Disable the manufacturer mode without reset */
1318 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_disable), mfg_disable,
1319 HCI_INIT_TIMEOUT);
1320 if (IS_ERR(skb)) {
1321 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1322 hdev->name, PTR_ERR(skb));
1323 return PTR_ERR(skb);
1324 }
1325 kfree_skb(skb);
1326
1327 BT_INFO("%s: Intel Bluetooth firmware patch completed", hdev->name);
1328 return 0;
1329
1330 exit_mfg_deactivate:
1331 release_firmware(fw);
1332
1333 /* Patching failed. Disable the manufacturer mode with reset and
1334 * deactivate the downloaded firmware patches.
1335 */
1336 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_deactivate),
1337 mfg_reset_deactivate, HCI_INIT_TIMEOUT);
1338 if (IS_ERR(skb)) {
1339 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1340 hdev->name, PTR_ERR(skb));
1341 return PTR_ERR(skb);
1342 }
1343 kfree_skb(skb);
1344
1345 BT_INFO("%s: Intel Bluetooth firmware patch completed and deactivated",
1346 hdev->name);
1347
1348 return 0;
1349 }
1350
1351 static int btusb_probe(struct usb_interface *intf,
1352 const struct usb_device_id *id)
1353 {
1354 struct usb_endpoint_descriptor *ep_desc;
1355 struct btusb_data *data;
1356 struct hci_dev *hdev;
1357 int i, err;
1358
1359 BT_DBG("intf %p id %p", intf, id);
1360
1361 /* interface numbers are hardcoded in the spec */
1362 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
1363 return -ENODEV;
1364
1365 if (!id->driver_info) {
1366 const struct usb_device_id *match;
1367 match = usb_match_id(intf, blacklist_table);
1368 if (match)
1369 id = match;
1370 }
1371
1372 if (id->driver_info == BTUSB_IGNORE)
1373 return -ENODEV;
1374
1375 if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
1376 return -ENODEV;
1377
1378 if (ignore_csr && id->driver_info & BTUSB_CSR)
1379 return -ENODEV;
1380
1381 if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
1382 return -ENODEV;
1383
1384 if (id->driver_info & BTUSB_ATH3012) {
1385 struct usb_device *udev = interface_to_usbdev(intf);
1386
1387 /* Old firmware would otherwise let ath3k driver load
1388 * patch and sysconfig files */
1389 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
1390 return -ENODEV;
1391 }
1392
1393 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
1394 if (!data)
1395 return -ENOMEM;
1396
1397 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1398 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1399
1400 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
1401 data->intr_ep = ep_desc;
1402 continue;
1403 }
1404
1405 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
1406 data->bulk_tx_ep = ep_desc;
1407 continue;
1408 }
1409
1410 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
1411 data->bulk_rx_ep = ep_desc;
1412 continue;
1413 }
1414 }
1415
1416 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
1417 return -ENODEV;
1418
1419 data->cmdreq_type = USB_TYPE_CLASS;
1420
1421 data->udev = interface_to_usbdev(intf);
1422 data->intf = intf;
1423
1424 spin_lock_init(&data->lock);
1425
1426 INIT_WORK(&data->work, btusb_work);
1427 INIT_WORK(&data->waker, btusb_waker);
1428 spin_lock_init(&data->txlock);
1429
1430 init_usb_anchor(&data->tx_anchor);
1431 init_usb_anchor(&data->intr_anchor);
1432 init_usb_anchor(&data->bulk_anchor);
1433 init_usb_anchor(&data->isoc_anchor);
1434 init_usb_anchor(&data->deferred);
1435
1436 hdev = hci_alloc_dev();
1437 if (!hdev)
1438 return -ENOMEM;
1439
1440 hdev->bus = HCI_USB;
1441 hci_set_drvdata(hdev, data);
1442
1443 data->hdev = hdev;
1444
1445 SET_HCIDEV_DEV(hdev, &intf->dev);
1446
1447 hdev->open = btusb_open;
1448 hdev->close = btusb_close;
1449 hdev->flush = btusb_flush;
1450 hdev->send = btusb_send_frame;
1451 hdev->notify = btusb_notify;
1452
1453 if (id->driver_info & BTUSB_BCM92035)
1454 hdev->setup = btusb_setup_bcm92035;
1455
1456 if (id->driver_info & BTUSB_INTEL)
1457 hdev->setup = btusb_setup_intel;
1458
1459 if (id->driver_info & BTUSB_INTEL_BOOT)
1460 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1461
1462 /* Interface numbers are hardcoded in the specification */
1463 data->isoc = usb_ifnum_to_if(data->udev, 1);
1464
1465 if (!reset)
1466 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1467
1468 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1469 if (!disable_scofix)
1470 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1471 }
1472
1473 if (id->driver_info & BTUSB_BROKEN_ISOC)
1474 data->isoc = NULL;
1475
1476 if (id->driver_info & BTUSB_DIGIANSWER) {
1477 data->cmdreq_type = USB_TYPE_VENDOR;
1478 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1479 }
1480
1481 if (id->driver_info & BTUSB_CSR) {
1482 struct usb_device *udev = data->udev;
1483
1484 /* Old firmware would otherwise execute USB reset */
1485 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
1486 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1487 }
1488
1489 if (id->driver_info & BTUSB_SNIFFER) {
1490 struct usb_device *udev = data->udev;
1491
1492 /* New sniffer firmware has crippled HCI interface */
1493 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1494 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1495
1496 data->isoc = NULL;
1497 }
1498
1499 if (data->isoc) {
1500 err = usb_driver_claim_interface(&btusb_driver,
1501 data->isoc, data);
1502 if (err < 0) {
1503 hci_free_dev(hdev);
1504 return err;
1505 }
1506 }
1507
1508 err = hci_register_dev(hdev);
1509 if (err < 0) {
1510 hci_free_dev(hdev);
1511 return err;
1512 }
1513
1514 usb_set_intfdata(intf, data);
1515
1516 return 0;
1517 }
1518
1519 static void btusb_disconnect(struct usb_interface *intf)
1520 {
1521 struct btusb_data *data = usb_get_intfdata(intf);
1522 struct hci_dev *hdev;
1523
1524 BT_DBG("intf %p", intf);
1525
1526 if (!data)
1527 return;
1528
1529 hdev = data->hdev;
1530 usb_set_intfdata(data->intf, NULL);
1531
1532 if (data->isoc)
1533 usb_set_intfdata(data->isoc, NULL);
1534
1535 hci_unregister_dev(hdev);
1536
1537 if (intf == data->isoc)
1538 usb_driver_release_interface(&btusb_driver, data->intf);
1539 else if (data->isoc)
1540 usb_driver_release_interface(&btusb_driver, data->isoc);
1541
1542 hci_free_dev(hdev);
1543 }
1544
1545 #ifdef CONFIG_PM
1546 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1547 {
1548 struct btusb_data *data = usb_get_intfdata(intf);
1549
1550 BT_DBG("intf %p", intf);
1551
1552 if (data->suspend_count++)
1553 return 0;
1554
1555 spin_lock_irq(&data->txlock);
1556 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
1557 set_bit(BTUSB_SUSPENDING, &data->flags);
1558 spin_unlock_irq(&data->txlock);
1559 } else {
1560 spin_unlock_irq(&data->txlock);
1561 data->suspend_count--;
1562 return -EBUSY;
1563 }
1564
1565 cancel_work_sync(&data->work);
1566
1567 btusb_stop_traffic(data);
1568 usb_kill_anchored_urbs(&data->tx_anchor);
1569
1570 return 0;
1571 }
1572
1573 static void play_deferred(struct btusb_data *data)
1574 {
1575 struct urb *urb;
1576 int err;
1577
1578 while ((urb = usb_get_from_anchor(&data->deferred))) {
1579 err = usb_submit_urb(urb, GFP_ATOMIC);
1580 if (err < 0)
1581 break;
1582
1583 data->tx_in_flight++;
1584 }
1585 usb_scuttle_anchored_urbs(&data->deferred);
1586 }
1587
1588 static int btusb_resume(struct usb_interface *intf)
1589 {
1590 struct btusb_data *data = usb_get_intfdata(intf);
1591 struct hci_dev *hdev = data->hdev;
1592 int err = 0;
1593
1594 BT_DBG("intf %p", intf);
1595
1596 if (--data->suspend_count)
1597 return 0;
1598
1599 if (!test_bit(HCI_RUNNING, &hdev->flags))
1600 goto done;
1601
1602 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1603 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1604 if (err < 0) {
1605 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1606 goto failed;
1607 }
1608 }
1609
1610 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1611 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1612 if (err < 0) {
1613 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1614 goto failed;
1615 }
1616
1617 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1618 }
1619
1620 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1621 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1622 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1623 else
1624 btusb_submit_isoc_urb(hdev, GFP_NOIO);
1625 }
1626
1627 spin_lock_irq(&data->txlock);
1628 play_deferred(data);
1629 clear_bit(BTUSB_SUSPENDING, &data->flags);
1630 spin_unlock_irq(&data->txlock);
1631 schedule_work(&data->work);
1632
1633 return 0;
1634
1635 failed:
1636 usb_scuttle_anchored_urbs(&data->deferred);
1637 done:
1638 spin_lock_irq(&data->txlock);
1639 clear_bit(BTUSB_SUSPENDING, &data->flags);
1640 spin_unlock_irq(&data->txlock);
1641
1642 return err;
1643 }
1644 #endif
1645
1646 static struct usb_driver btusb_driver = {
1647 .name = "btusb",
1648 .probe = btusb_probe,
1649 .disconnect = btusb_disconnect,
1650 #ifdef CONFIG_PM
1651 .suspend = btusb_suspend,
1652 .resume = btusb_resume,
1653 #endif
1654 .id_table = btusb_table,
1655 .supports_autosuspend = 1,
1656 .disable_hub_initiated_lpm = 1,
1657 };
1658
1659 module_usb_driver(btusb_driver);
1660
1661 module_param(ignore_dga, bool, 0644);
1662 MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1663
1664 module_param(ignore_csr, bool, 0644);
1665 MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1666
1667 module_param(ignore_sniffer, bool, 0644);
1668 MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1669
1670 module_param(disable_scofix, bool, 0644);
1671 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1672
1673 module_param(force_scofix, bool, 0644);
1674 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1675
1676 module_param(reset, bool, 0644);
1677 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1678
1679 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1680 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1681 MODULE_VERSION(VERSION);
1682 MODULE_LICENSE("GPL");
kernel source for telekom puls (alcatel/mediatek)