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irqchip: crossbar: Introduce centralized check for crossbar write
[linux/fpc-iii.git] / drivers / bluetooth / btusb.c
bloba1c80b0c7663d25baf2224bae0513b3bb29c6543
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_BCM_PATCHRAM 0x200
53
54 static const 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(0x0489, 0xe042) },
106 { USB_DEVICE(0x04ca, 0x2003) },
107 { USB_DEVICE(0x0b05, 0x17b5) },
108 { USB_DEVICE(0x0b05, 0x17cb) },
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 .driver_info = BTUSB_BCM_PATCHRAM },
117
118 /* Belkin F8065bf - Broadcom based */
119 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01) },
120
121 /* IMC Networks - Broadcom based */
122 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01) },
123
124 { } /* Terminating entry */
125 };
126
127 MODULE_DEVICE_TABLE(usb, btusb_table);
128
129 static const 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(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
138 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
139 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
140 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
141 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
142 { USB_DEVICE(0x13d3, 0x3304), .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(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
149 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
150 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
151 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
152 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
153 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
154 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
155 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
156 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
157 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
158 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
159 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
160 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
161 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
162 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
163 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
164 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
165 { USB_DEVICE(0x0cf3, 0x3005), .driver_info = BTUSB_ATH3012 },
166 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
167 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
168 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
169 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
170 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
171 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
172 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
173 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
174 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
175 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
176 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
177 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
178 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
179
180 /* Atheros AR5BBU12 with sflash firmware */
181 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
182
183 /* Atheros AR5BBU12 with sflash firmware */
184 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
185 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
186
187 /* Broadcom BCM2035 */
188 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
189 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
190 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
191
192 /* Broadcom BCM2045 */
193 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
194 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
195
196 /* IBM/Lenovo ThinkPad with Broadcom chip */
197 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
198 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
199
200 /* HP laptop with Broadcom chip */
201 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
202
203 /* Dell laptop with Broadcom chip */
204 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
205
206 /* Dell Wireless 370 and 410 devices */
207 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
208 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
209
210 /* Belkin F8T012 and F8T013 devices */
211 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
212 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
213
214 /* Asus WL-BTD202 device */
215 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
216
217 /* Kensington Bluetooth USB adapter */
218 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
219
220 /* RTX Telecom based adapters with buggy SCO support */
221 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
222 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
223
224 /* CONWISE Technology based adapters with buggy SCO support */
225 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
226
227 /* Digianswer devices */
228 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
229 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
230
231 /* CSR BlueCore Bluetooth Sniffer */
232 { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
233
234 /* Frontline ComProbe Bluetooth Sniffer */
235 { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
236
237 /* Intel Bluetooth device */
238 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
239 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL },
240
241 { } /* Terminating entry */
242 };
243
244 #define BTUSB_MAX_ISOC_FRAMES 10
245
246 #define BTUSB_INTR_RUNNING 0
247 #define BTUSB_BULK_RUNNING 1
248 #define BTUSB_ISOC_RUNNING 2
249 #define BTUSB_SUSPENDING 3
250 #define BTUSB_DID_ISO_RESUME 4
251
252 struct btusb_data {
253 struct hci_dev *hdev;
254 struct usb_device *udev;
255 struct usb_interface *intf;
256 struct usb_interface *isoc;
257
258 spinlock_t lock;
259
260 unsigned long flags;
261
262 struct work_struct work;
263 struct work_struct waker;
264
265 struct usb_anchor tx_anchor;
266 struct usb_anchor intr_anchor;
267 struct usb_anchor bulk_anchor;
268 struct usb_anchor isoc_anchor;
269 struct usb_anchor deferred;
270 int tx_in_flight;
271 spinlock_t txlock;
272
273 struct usb_endpoint_descriptor *intr_ep;
274 struct usb_endpoint_descriptor *bulk_tx_ep;
275 struct usb_endpoint_descriptor *bulk_rx_ep;
276 struct usb_endpoint_descriptor *isoc_tx_ep;
277 struct usb_endpoint_descriptor *isoc_rx_ep;
278
279 __u8 cmdreq_type;
280
281 unsigned int sco_num;
282 int isoc_altsetting;
283 int suspend_count;
284 };
285
286 static int inc_tx(struct btusb_data *data)
287 {
288 unsigned long flags;
289 int rv;
290
291 spin_lock_irqsave(&data->txlock, flags);
292 rv = test_bit(BTUSB_SUSPENDING, &data->flags);
293 if (!rv)
294 data->tx_in_flight++;
295 spin_unlock_irqrestore(&data->txlock, flags);
296
297 return rv;
298 }
299
300 static void btusb_intr_complete(struct urb *urb)
301 {
302 struct hci_dev *hdev = urb->context;
303 struct btusb_data *data = hci_get_drvdata(hdev);
304 int err;
305
306 BT_DBG("%s urb %p status %d count %d", hdev->name,
307 urb, urb->status, urb->actual_length);
308
309 if (!test_bit(HCI_RUNNING, &hdev->flags))
310 return;
311
312 if (urb->status == 0) {
313 hdev->stat.byte_rx += urb->actual_length;
314
315 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
316 urb->transfer_buffer,
317 urb->actual_length) < 0) {
318 BT_ERR("%s corrupted event packet", hdev->name);
319 hdev->stat.err_rx++;
320 }
321 }
322
323 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
324 return;
325
326 usb_mark_last_busy(data->udev);
327 usb_anchor_urb(urb, &data->intr_anchor);
328
329 err = usb_submit_urb(urb, GFP_ATOMIC);
330 if (err < 0) {
331 /* -EPERM: urb is being killed;
332 * -ENODEV: device got disconnected */
333 if (err != -EPERM && err != -ENODEV)
334 BT_ERR("%s urb %p failed to resubmit (%d)",
335 hdev->name, urb, -err);
336 usb_unanchor_urb(urb);
337 }
338 }
339
340 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
341 {
342 struct btusb_data *data = hci_get_drvdata(hdev);
343 struct urb *urb;
344 unsigned char *buf;
345 unsigned int pipe;
346 int err, size;
347
348 BT_DBG("%s", hdev->name);
349
350 if (!data->intr_ep)
351 return -ENODEV;
352
353 urb = usb_alloc_urb(0, mem_flags);
354 if (!urb)
355 return -ENOMEM;
356
357 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
358
359 buf = kmalloc(size, mem_flags);
360 if (!buf) {
361 usb_free_urb(urb);
362 return -ENOMEM;
363 }
364
365 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
366
367 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
368 btusb_intr_complete, hdev,
369 data->intr_ep->bInterval);
370
371 urb->transfer_flags |= URB_FREE_BUFFER;
372
373 usb_anchor_urb(urb, &data->intr_anchor);
374
375 err = usb_submit_urb(urb, mem_flags);
376 if (err < 0) {
377 if (err != -EPERM && err != -ENODEV)
378 BT_ERR("%s urb %p submission failed (%d)",
379 hdev->name, urb, -err);
380 usb_unanchor_urb(urb);
381 }
382
383 usb_free_urb(urb);
384
385 return err;
386 }
387
388 static void btusb_bulk_complete(struct urb *urb)
389 {
390 struct hci_dev *hdev = urb->context;
391 struct btusb_data *data = hci_get_drvdata(hdev);
392 int err;
393
394 BT_DBG("%s urb %p status %d count %d", hdev->name,
395 urb, urb->status, urb->actual_length);
396
397 if (!test_bit(HCI_RUNNING, &hdev->flags))
398 return;
399
400 if (urb->status == 0) {
401 hdev->stat.byte_rx += urb->actual_length;
402
403 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
404 urb->transfer_buffer,
405 urb->actual_length) < 0) {
406 BT_ERR("%s corrupted ACL packet", hdev->name);
407 hdev->stat.err_rx++;
408 }
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 }
504
505 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
506 return;
507
508 usb_anchor_urb(urb, &data->isoc_anchor);
509
510 err = usb_submit_urb(urb, GFP_ATOMIC);
511 if (err < 0) {
512 /* -EPERM: urb is being killed;
513 * -ENODEV: device got disconnected */
514 if (err != -EPERM && err != -ENODEV)
515 BT_ERR("%s urb %p failed to resubmit (%d)",
516 hdev->name, urb, -err);
517 usb_unanchor_urb(urb);
518 }
519 }
520
521 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
522 {
523 int i, offset = 0;
524
525 BT_DBG("len %d mtu %d", len, mtu);
526
527 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
528 i++, offset += mtu, len -= mtu) {
529 urb->iso_frame_desc[i].offset = offset;
530 urb->iso_frame_desc[i].length = mtu;
531 }
532
533 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
534 urb->iso_frame_desc[i].offset = offset;
535 urb->iso_frame_desc[i].length = len;
536 i++;
537 }
538
539 urb->number_of_packets = i;
540 }
541
542 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
543 {
544 struct btusb_data *data = hci_get_drvdata(hdev);
545 struct urb *urb;
546 unsigned char *buf;
547 unsigned int pipe;
548 int err, size;
549
550 BT_DBG("%s", hdev->name);
551
552 if (!data->isoc_rx_ep)
553 return -ENODEV;
554
555 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
556 if (!urb)
557 return -ENOMEM;
558
559 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
560 BTUSB_MAX_ISOC_FRAMES;
561
562 buf = kmalloc(size, mem_flags);
563 if (!buf) {
564 usb_free_urb(urb);
565 return -ENOMEM;
566 }
567
568 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
569
570 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
571 hdev, data->isoc_rx_ep->bInterval);
572
573 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
574
575 __fill_isoc_descriptor(urb, size,
576 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
577
578 usb_anchor_urb(urb, &data->isoc_anchor);
579
580 err = usb_submit_urb(urb, mem_flags);
581 if (err < 0) {
582 if (err != -EPERM && err != -ENODEV)
583 BT_ERR("%s urb %p submission failed (%d)",
584 hdev->name, urb, -err);
585 usb_unanchor_urb(urb);
586 }
587
588 usb_free_urb(urb);
589
590 return err;
591 }
592
593 static void btusb_tx_complete(struct urb *urb)
594 {
595 struct sk_buff *skb = urb->context;
596 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
597 struct btusb_data *data = hci_get_drvdata(hdev);
598
599 BT_DBG("%s urb %p status %d count %d", hdev->name,
600 urb, urb->status, urb->actual_length);
601
602 if (!test_bit(HCI_RUNNING, &hdev->flags))
603 goto done;
604
605 if (!urb->status)
606 hdev->stat.byte_tx += urb->transfer_buffer_length;
607 else
608 hdev->stat.err_tx++;
609
610 done:
611 spin_lock(&data->txlock);
612 data->tx_in_flight--;
613 spin_unlock(&data->txlock);
614
615 kfree(urb->setup_packet);
616
617 kfree_skb(skb);
618 }
619
620 static void btusb_isoc_tx_complete(struct urb *urb)
621 {
622 struct sk_buff *skb = urb->context;
623 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
624
625 BT_DBG("%s urb %p status %d count %d", hdev->name,
626 urb, urb->status, urb->actual_length);
627
628 if (!test_bit(HCI_RUNNING, &hdev->flags))
629 goto done;
630
631 if (!urb->status)
632 hdev->stat.byte_tx += urb->transfer_buffer_length;
633 else
634 hdev->stat.err_tx++;
635
636 done:
637 kfree(urb->setup_packet);
638
639 kfree_skb(skb);
640 }
641
642 static int btusb_open(struct hci_dev *hdev)
643 {
644 struct btusb_data *data = hci_get_drvdata(hdev);
645 int err;
646
647 BT_DBG("%s", hdev->name);
648
649 err = usb_autopm_get_interface(data->intf);
650 if (err < 0)
651 return err;
652
653 data->intf->needs_remote_wakeup = 1;
654
655 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
656 goto done;
657
658 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
659 goto done;
660
661 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
662 if (err < 0)
663 goto failed;
664
665 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
666 if (err < 0) {
667 usb_kill_anchored_urbs(&data->intr_anchor);
668 goto failed;
669 }
670
671 set_bit(BTUSB_BULK_RUNNING, &data->flags);
672 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
673
674 done:
675 usb_autopm_put_interface(data->intf);
676 return 0;
677
678 failed:
679 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
680 clear_bit(HCI_RUNNING, &hdev->flags);
681 usb_autopm_put_interface(data->intf);
682 return err;
683 }
684
685 static void btusb_stop_traffic(struct btusb_data *data)
686 {
687 usb_kill_anchored_urbs(&data->intr_anchor);
688 usb_kill_anchored_urbs(&data->bulk_anchor);
689 usb_kill_anchored_urbs(&data->isoc_anchor);
690 }
691
692 static int btusb_close(struct hci_dev *hdev)
693 {
694 struct btusb_data *data = hci_get_drvdata(hdev);
695 int err;
696
697 BT_DBG("%s", hdev->name);
698
699 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
700 return 0;
701
702 cancel_work_sync(&data->work);
703 cancel_work_sync(&data->waker);
704
705 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
706 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
707 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
708
709 btusb_stop_traffic(data);
710 err = usb_autopm_get_interface(data->intf);
711 if (err < 0)
712 goto failed;
713
714 data->intf->needs_remote_wakeup = 0;
715 usb_autopm_put_interface(data->intf);
716
717 failed:
718 usb_scuttle_anchored_urbs(&data->deferred);
719 return 0;
720 }
721
722 static int btusb_flush(struct hci_dev *hdev)
723 {
724 struct btusb_data *data = hci_get_drvdata(hdev);
725
726 BT_DBG("%s", hdev->name);
727
728 usb_kill_anchored_urbs(&data->tx_anchor);
729
730 return 0;
731 }
732
733 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
734 {
735 struct btusb_data *data = hci_get_drvdata(hdev);
736 struct usb_ctrlrequest *dr;
737 struct urb *urb;
738 unsigned int pipe;
739 int err;
740
741 BT_DBG("%s", hdev->name);
742
743 if (!test_bit(HCI_RUNNING, &hdev->flags))
744 return -EBUSY;
745
746 skb->dev = (void *) hdev;
747
748 switch (bt_cb(skb)->pkt_type) {
749 case HCI_COMMAND_PKT:
750 urb = usb_alloc_urb(0, GFP_ATOMIC);
751 if (!urb)
752 return -ENOMEM;
753
754 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
755 if (!dr) {
756 usb_free_urb(urb);
757 return -ENOMEM;
758 }
759
760 dr->bRequestType = data->cmdreq_type;
761 dr->bRequest = 0;
762 dr->wIndex = 0;
763 dr->wValue = 0;
764 dr->wLength = __cpu_to_le16(skb->len);
765
766 pipe = usb_sndctrlpipe(data->udev, 0x00);
767
768 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
769 skb->data, skb->len, btusb_tx_complete, skb);
770
771 hdev->stat.cmd_tx++;
772 break;
773
774 case HCI_ACLDATA_PKT:
775 if (!data->bulk_tx_ep)
776 return -ENODEV;
777
778 urb = usb_alloc_urb(0, GFP_ATOMIC);
779 if (!urb)
780 return -ENOMEM;
781
782 pipe = usb_sndbulkpipe(data->udev,
783 data->bulk_tx_ep->bEndpointAddress);
784
785 usb_fill_bulk_urb(urb, data->udev, pipe,
786 skb->data, skb->len, btusb_tx_complete, skb);
787
788 hdev->stat.acl_tx++;
789 break;
790
791 case HCI_SCODATA_PKT:
792 if (!data->isoc_tx_ep || hci_conn_num(hdev, SCO_LINK) < 1)
793 return -ENODEV;
794
795 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
796 if (!urb)
797 return -ENOMEM;
798
799 pipe = usb_sndisocpipe(data->udev,
800 data->isoc_tx_ep->bEndpointAddress);
801
802 usb_fill_int_urb(urb, data->udev, pipe,
803 skb->data, skb->len, btusb_isoc_tx_complete,
804 skb, data->isoc_tx_ep->bInterval);
805
806 urb->transfer_flags = URB_ISO_ASAP;
807
808 __fill_isoc_descriptor(urb, skb->len,
809 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
810
811 hdev->stat.sco_tx++;
812 goto skip_waking;
813
814 default:
815 return -EILSEQ;
816 }
817
818 err = inc_tx(data);
819 if (err) {
820 usb_anchor_urb(urb, &data->deferred);
821 schedule_work(&data->waker);
822 err = 0;
823 goto done;
824 }
825
826 skip_waking:
827 usb_anchor_urb(urb, &data->tx_anchor);
828
829 err = usb_submit_urb(urb, GFP_ATOMIC);
830 if (err < 0) {
831 if (err != -EPERM && err != -ENODEV)
832 BT_ERR("%s urb %p submission failed (%d)",
833 hdev->name, urb, -err);
834 kfree(urb->setup_packet);
835 usb_unanchor_urb(urb);
836 } else {
837 usb_mark_last_busy(data->udev);
838 }
839
840 done:
841 usb_free_urb(urb);
842 return err;
843 }
844
845 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
846 {
847 struct btusb_data *data = hci_get_drvdata(hdev);
848
849 BT_DBG("%s evt %d", hdev->name, evt);
850
851 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
852 data->sco_num = hci_conn_num(hdev, SCO_LINK);
853 schedule_work(&data->work);
854 }
855 }
856
857 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
858 {
859 struct btusb_data *data = hci_get_drvdata(hdev);
860 struct usb_interface *intf = data->isoc;
861 struct usb_endpoint_descriptor *ep_desc;
862 int i, err;
863
864 if (!data->isoc)
865 return -ENODEV;
866
867 err = usb_set_interface(data->udev, 1, altsetting);
868 if (err < 0) {
869 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
870 return err;
871 }
872
873 data->isoc_altsetting = altsetting;
874
875 data->isoc_tx_ep = NULL;
876 data->isoc_rx_ep = NULL;
877
878 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
879 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
880
881 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
882 data->isoc_tx_ep = ep_desc;
883 continue;
884 }
885
886 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
887 data->isoc_rx_ep = ep_desc;
888 continue;
889 }
890 }
891
892 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
893 BT_ERR("%s invalid SCO descriptors", hdev->name);
894 return -ENODEV;
895 }
896
897 return 0;
898 }
899
900 static void btusb_work(struct work_struct *work)
901 {
902 struct btusb_data *data = container_of(work, struct btusb_data, work);
903 struct hci_dev *hdev = data->hdev;
904 int new_alts;
905 int err;
906
907 if (data->sco_num > 0) {
908 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
909 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
910 if (err < 0) {
911 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
912 usb_kill_anchored_urbs(&data->isoc_anchor);
913 return;
914 }
915
916 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
917 }
918
919 if (hdev->voice_setting & 0x0020) {
920 static const int alts[3] = { 2, 4, 5 };
921 new_alts = alts[data->sco_num - 1];
922 } else {
923 new_alts = data->sco_num;
924 }
925
926 if (data->isoc_altsetting != new_alts) {
927 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
928 usb_kill_anchored_urbs(&data->isoc_anchor);
929
930 if (__set_isoc_interface(hdev, new_alts) < 0)
931 return;
932 }
933
934 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
935 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
936 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
937 else
938 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
939 }
940 } else {
941 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
942 usb_kill_anchored_urbs(&data->isoc_anchor);
943
944 __set_isoc_interface(hdev, 0);
945 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
946 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
947 }
948 }
949
950 static void btusb_waker(struct work_struct *work)
951 {
952 struct btusb_data *data = container_of(work, struct btusb_data, waker);
953 int err;
954
955 err = usb_autopm_get_interface(data->intf);
956 if (err < 0)
957 return;
958
959 usb_autopm_put_interface(data->intf);
960 }
961
962 static int btusb_setup_bcm92035(struct hci_dev *hdev)
963 {
964 struct sk_buff *skb;
965 u8 val = 0x00;
966
967 BT_DBG("%s", hdev->name);
968
969 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
970 if (IS_ERR(skb))
971 BT_ERR("BCM92035 command failed (%ld)", -PTR_ERR(skb));
972 else
973 kfree_skb(skb);
974
975 return 0;
976 }
977
978 static int btusb_setup_csr(struct hci_dev *hdev)
979 {
980 struct hci_rp_read_local_version *rp;
981 struct sk_buff *skb;
982 int ret;
983
984 BT_DBG("%s", hdev->name);
985
986 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
987 HCI_INIT_TIMEOUT);
988 if (IS_ERR(skb)) {
989 BT_ERR("Reading local version failed (%ld)", -PTR_ERR(skb));
990 return -PTR_ERR(skb);
991 }
992
993 rp = (struct hci_rp_read_local_version *) skb->data;
994
995 if (!rp->status) {
996 if (le16_to_cpu(rp->manufacturer) != 10) {
997 /* Clear the reset quirk since this is not an actual
998 * early Bluetooth 1.1 device from CSR.
999 */
1000 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1001
1002 /* These fake CSR controllers have all a broken
1003 * stored link key handling and so just disable it.
1004 */
1005 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY,
1006 &hdev->quirks);
1007 }
1008 }
1009
1010 ret = -bt_to_errno(rp->status);
1011
1012 kfree_skb(skb);
1013
1014 return ret;
1015 }
1016
1017 struct intel_version {
1018 u8 status;
1019 u8 hw_platform;
1020 u8 hw_variant;
1021 u8 hw_revision;
1022 u8 fw_variant;
1023 u8 fw_revision;
1024 u8 fw_build_num;
1025 u8 fw_build_ww;
1026 u8 fw_build_yy;
1027 u8 fw_patch_num;
1028 } __packed;
1029
1030 static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
1031 struct intel_version *ver)
1032 {
1033 const struct firmware *fw;
1034 char fwname[64];
1035 int ret;
1036
1037 snprintf(fwname, sizeof(fwname),
1038 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1039 ver->hw_platform, ver->hw_variant, ver->hw_revision,
1040 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
1041 ver->fw_build_ww, ver->fw_build_yy);
1042
1043 ret = request_firmware(&fw, fwname, &hdev->dev);
1044 if (ret < 0) {
1045 if (ret == -EINVAL) {
1046 BT_ERR("%s Intel firmware file request failed (%d)",
1047 hdev->name, ret);
1048 return NULL;
1049 }
1050
1051 BT_ERR("%s failed to open Intel firmware file: %s(%d)",
1052 hdev->name, fwname, ret);
1053
1054 /* If the correct firmware patch file is not found, use the
1055 * default firmware patch file instead
1056 */
1057 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1058 ver->hw_platform, ver->hw_variant);
1059 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1060 BT_ERR("%s failed to open default Intel fw file: %s",
1061 hdev->name, fwname);
1062 return NULL;
1063 }
1064 }
1065
1066 BT_INFO("%s: Intel Bluetooth firmware file: %s", hdev->name, fwname);
1067
1068 return fw;
1069 }
1070
1071 static int btusb_setup_intel_patching(struct hci_dev *hdev,
1072 const struct firmware *fw,
1073 const u8 **fw_ptr, int *disable_patch)
1074 {
1075 struct sk_buff *skb;
1076 struct hci_command_hdr *cmd;
1077 const u8 *cmd_param;
1078 struct hci_event_hdr *evt = NULL;
1079 const u8 *evt_param = NULL;
1080 int remain = fw->size - (*fw_ptr - fw->data);
1081
1082 /* The first byte indicates the types of the patch command or event.
1083 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1084 * in the current firmware buffer doesn't start with 0x01 or
1085 * the size of remain buffer is smaller than HCI command header,
1086 * the firmware file is corrupted and it should stop the patching
1087 * process.
1088 */
1089 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1090 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name);
1091 return -EINVAL;
1092 }
1093 (*fw_ptr)++;
1094 remain--;
1095
1096 cmd = (struct hci_command_hdr *)(*fw_ptr);
1097 *fw_ptr += sizeof(*cmd);
1098 remain -= sizeof(*cmd);
1099
1100 /* Ensure that the remain firmware data is long enough than the length
1101 * of command parameter. If not, the firmware file is corrupted.
1102 */
1103 if (remain < cmd->plen) {
1104 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name);
1105 return -EFAULT;
1106 }
1107
1108 /* If there is a command that loads a patch in the firmware
1109 * file, then enable the patch upon success, otherwise just
1110 * disable the manufacturer mode, for example patch activation
1111 * is not required when the default firmware patch file is used
1112 * because there are no patch data to load.
1113 */
1114 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1115 *disable_patch = 0;
1116
1117 cmd_param = *fw_ptr;
1118 *fw_ptr += cmd->plen;
1119 remain -= cmd->plen;
1120
1121 /* This reads the expected events when the above command is sent to the
1122 * device. Some vendor commands expects more than one events, for
1123 * example command status event followed by vendor specific event.
1124 * For this case, it only keeps the last expected event. so the command
1125 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1126 * last expected event.
1127 */
1128 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1129 (*fw_ptr)++;
1130 remain--;
1131
1132 evt = (struct hci_event_hdr *)(*fw_ptr);
1133 *fw_ptr += sizeof(*evt);
1134 remain -= sizeof(*evt);
1135
1136 if (remain < evt->plen) {
1137 BT_ERR("%s Intel fw corrupted: invalid evt len",
1138 hdev->name);
1139 return -EFAULT;
1140 }
1141
1142 evt_param = *fw_ptr;
1143 *fw_ptr += evt->plen;
1144 remain -= evt->plen;
1145 }
1146
1147 /* Every HCI commands in the firmware file has its correspond event.
1148 * If event is not found or remain is smaller than zero, the firmware
1149 * file is corrupted.
1150 */
1151 if (!evt || !evt_param || remain < 0) {
1152 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name);
1153 return -EFAULT;
1154 }
1155
1156 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1157 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1158 if (IS_ERR(skb)) {
1159 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)",
1160 hdev->name, cmd->opcode, PTR_ERR(skb));
1161 return PTR_ERR(skb);
1162 }
1163
1164 /* It ensures that the returned event matches the event data read from
1165 * the firmware file. At fist, it checks the length and then
1166 * the contents of the event.
1167 */
1168 if (skb->len != evt->plen) {
1169 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name,
1170 le16_to_cpu(cmd->opcode));
1171 kfree_skb(skb);
1172 return -EFAULT;
1173 }
1174
1175 if (memcmp(skb->data, evt_param, evt->plen)) {
1176 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)",
1177 hdev->name, le16_to_cpu(cmd->opcode));
1178 kfree_skb(skb);
1179 return -EFAULT;
1180 }
1181 kfree_skb(skb);
1182
1183 return 0;
1184 }
1185
1186 static int btusb_setup_intel(struct hci_dev *hdev)
1187 {
1188 struct sk_buff *skb;
1189 const struct firmware *fw;
1190 const u8 *fw_ptr;
1191 int disable_patch;
1192 struct intel_version *ver;
1193
1194 const u8 mfg_enable[] = { 0x01, 0x00 };
1195 const u8 mfg_disable[] = { 0x00, 0x00 };
1196 const u8 mfg_reset_deactivate[] = { 0x00, 0x01 };
1197 const u8 mfg_reset_activate[] = { 0x00, 0x02 };
1198
1199 BT_DBG("%s", hdev->name);
1200
1201 /* The controller has a bug with the first HCI command sent to it
1202 * returning number of completed commands as zero. This would stall the
1203 * command processing in the Bluetooth core.
1204 *
1205 * As a workaround, send HCI Reset command first which will reset the
1206 * number of completed commands and allow normal command processing
1207 * from now on.
1208 */
1209 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1210 if (IS_ERR(skb)) {
1211 BT_ERR("%s sending initial HCI reset command failed (%ld)",
1212 hdev->name, PTR_ERR(skb));
1213 return PTR_ERR(skb);
1214 }
1215 kfree_skb(skb);
1216
1217 /* Read Intel specific controller version first to allow selection of
1218 * which firmware file to load.
1219 *
1220 * The returned information are hardware variant and revision plus
1221 * firmware variant, revision and build number.
1222 */
1223 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
1224 if (IS_ERR(skb)) {
1225 BT_ERR("%s reading Intel fw version command failed (%ld)",
1226 hdev->name, PTR_ERR(skb));
1227 return PTR_ERR(skb);
1228 }
1229
1230 if (skb->len != sizeof(*ver)) {
1231 BT_ERR("%s Intel version event length mismatch", hdev->name);
1232 kfree_skb(skb);
1233 return -EIO;
1234 }
1235
1236 ver = (struct intel_version *)skb->data;
1237 if (ver->status) {
1238 BT_ERR("%s Intel fw version event failed (%02x)", hdev->name,
1239 ver->status);
1240 kfree_skb(skb);
1241 return -bt_to_errno(ver->status);
1242 }
1243
1244 BT_INFO("%s: read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1245 hdev->name, ver->hw_platform, ver->hw_variant,
1246 ver->hw_revision, ver->fw_variant, ver->fw_revision,
1247 ver->fw_build_num, ver->fw_build_ww, ver->fw_build_yy,
1248 ver->fw_patch_num);
1249
1250 /* fw_patch_num indicates the version of patch the device currently
1251 * have. If there is no patch data in the device, it is always 0x00.
1252 * So, if it is other than 0x00, no need to patch the deivce again.
1253 */
1254 if (ver->fw_patch_num) {
1255 BT_INFO("%s: Intel device is already patched. patch num: %02x",
1256 hdev->name, ver->fw_patch_num);
1257 kfree_skb(skb);
1258 return 0;
1259 }
1260
1261 /* Opens the firmware patch file based on the firmware version read
1262 * from the controller. If it fails to open the matching firmware
1263 * patch file, it tries to open the default firmware patch file.
1264 * If no patch file is found, allow the device to operate without
1265 * a patch.
1266 */
1267 fw = btusb_setup_intel_get_fw(hdev, ver);
1268 if (!fw) {
1269 kfree_skb(skb);
1270 return 0;
1271 }
1272 fw_ptr = fw->data;
1273
1274 /* This Intel specific command enables the manufacturer mode of the
1275 * controller.
1276 *
1277 * Only while this mode is enabled, the driver can download the
1278 * firmware patch data and configuration parameters.
1279 */
1280 skb = __hci_cmd_sync(hdev, 0xfc11, 2, mfg_enable, HCI_INIT_TIMEOUT);
1281 if (IS_ERR(skb)) {
1282 BT_ERR("%s entering Intel manufacturer mode failed (%ld)",
1283 hdev->name, PTR_ERR(skb));
1284 release_firmware(fw);
1285 return PTR_ERR(skb);
1286 }
1287
1288 if (skb->data[0]) {
1289 u8 evt_status = skb->data[0];
1290 BT_ERR("%s enable Intel manufacturer mode event failed (%02x)",
1291 hdev->name, evt_status);
1292 kfree_skb(skb);
1293 release_firmware(fw);
1294 return -bt_to_errno(evt_status);
1295 }
1296 kfree_skb(skb);
1297
1298 disable_patch = 1;
1299
1300 /* The firmware data file consists of list of Intel specific HCI
1301 * commands and its expected events. The first byte indicates the
1302 * type of the message, either HCI command or HCI event.
1303 *
1304 * It reads the command and its expected event from the firmware file,
1305 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1306 * the returned event is compared with the event read from the firmware
1307 * file and it will continue until all the messages are downloaded to
1308 * the controller.
1309 *
1310 * Once the firmware patching is completed successfully,
1311 * the manufacturer mode is disabled with reset and activating the
1312 * downloaded patch.
1313 *
1314 * If the firmware patching fails, the manufacturer mode is
1315 * disabled with reset and deactivating the patch.
1316 *
1317 * If the default patch file is used, no reset is done when disabling
1318 * the manufacturer.
1319 */
1320 while (fw->size > fw_ptr - fw->data) {
1321 int ret;
1322
1323 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1324 &disable_patch);
1325 if (ret < 0)
1326 goto exit_mfg_deactivate;
1327 }
1328
1329 release_firmware(fw);
1330
1331 if (disable_patch)
1332 goto exit_mfg_disable;
1333
1334 /* Patching completed successfully and disable the manufacturer mode
1335 * with reset and activate the downloaded firmware patches.
1336 */
1337 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_activate),
1338 mfg_reset_activate, HCI_INIT_TIMEOUT);
1339 if (IS_ERR(skb)) {
1340 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1341 hdev->name, PTR_ERR(skb));
1342 return PTR_ERR(skb);
1343 }
1344 kfree_skb(skb);
1345
1346 BT_INFO("%s: Intel Bluetooth firmware patch completed and activated",
1347 hdev->name);
1348
1349 return 0;
1350
1351 exit_mfg_disable:
1352 /* Disable the manufacturer mode without reset */
1353 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_disable), mfg_disable,
1354 HCI_INIT_TIMEOUT);
1355 if (IS_ERR(skb)) {
1356 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1357 hdev->name, PTR_ERR(skb));
1358 return PTR_ERR(skb);
1359 }
1360 kfree_skb(skb);
1361
1362 BT_INFO("%s: Intel Bluetooth firmware patch completed", hdev->name);
1363 return 0;
1364
1365 exit_mfg_deactivate:
1366 release_firmware(fw);
1367
1368 /* Patching failed. Disable the manufacturer mode with reset and
1369 * deactivate the downloaded firmware patches.
1370 */
1371 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_deactivate),
1372 mfg_reset_deactivate, HCI_INIT_TIMEOUT);
1373 if (IS_ERR(skb)) {
1374 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1375 hdev->name, PTR_ERR(skb));
1376 return PTR_ERR(skb);
1377 }
1378 kfree_skb(skb);
1379
1380 BT_INFO("%s: Intel Bluetooth firmware patch completed and deactivated",
1381 hdev->name);
1382
1383 return 0;
1384 }
1385
1386 static int btusb_setup_bcm_patchram(struct hci_dev *hdev)
1387 {
1388 struct btusb_data *data = hci_get_drvdata(hdev);
1389 struct usb_device *udev = data->udev;
1390 char fw_name[64];
1391 const struct firmware *fw;
1392 const u8 *fw_ptr;
1393 size_t fw_size;
1394 const struct hci_command_hdr *cmd;
1395 const u8 *cmd_param;
1396 u16 opcode;
1397 struct sk_buff *skb;
1398 struct hci_rp_read_local_version *ver;
1399 long ret;
1400
1401 snprintf(fw_name, sizeof(fw_name), "brcm/%s-%04x-%04x.hcd",
1402 udev->product ? udev->product : "BCM",
1403 le16_to_cpu(udev->descriptor.idVendor),
1404 le16_to_cpu(udev->descriptor.idProduct));
1405
1406 ret = request_firmware(&fw, fw_name, &hdev->dev);
1407 if (ret < 0) {
1408 BT_INFO("%s: BCM: patch %s not found", hdev->name,
1409 fw_name);
1410 return 0;
1411 }
1412
1413 /* Reset */
1414 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1415 if (IS_ERR(skb)) {
1416 ret = PTR_ERR(skb);
1417 BT_ERR("%s: HCI_OP_RESET failed (%ld)", hdev->name, ret);
1418 goto done;
1419 }
1420 kfree_skb(skb);
1421
1422 /* Read Local Version Info */
1423 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1424 HCI_INIT_TIMEOUT);
1425 if (IS_ERR(skb)) {
1426 ret = PTR_ERR(skb);
1427 BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION failed (%ld)",
1428 hdev->name, ret);
1429 goto done;
1430 }
1431
1432 if (skb->len != sizeof(*ver)) {
1433 BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION event length mismatch",
1434 hdev->name);
1435 kfree_skb(skb);
1436 ret = -EIO;
1437 goto done;
1438 }
1439
1440 ver = (struct hci_rp_read_local_version *) skb->data;
1441 BT_INFO("%s: BCM: patching hci_ver=%02x hci_rev=%04x lmp_ver=%02x "
1442 "lmp_subver=%04x", hdev->name, ver->hci_ver, ver->hci_rev,
1443 ver->lmp_ver, ver->lmp_subver);
1444 kfree_skb(skb);
1445
1446 /* Start Download */
1447 skb = __hci_cmd_sync(hdev, 0xfc2e, 0, NULL, HCI_INIT_TIMEOUT);
1448 if (IS_ERR(skb)) {
1449 ret = PTR_ERR(skb);
1450 BT_ERR("%s: BCM: Download Minidrv command failed (%ld)",
1451 hdev->name, ret);
1452 goto reset_fw;
1453 }
1454 kfree_skb(skb);
1455
1456 /* 50 msec delay after Download Minidrv completes */
1457 msleep(50);
1458
1459 fw_ptr = fw->data;
1460 fw_size = fw->size;
1461
1462 while (fw_size >= sizeof(*cmd)) {
1463 cmd = (struct hci_command_hdr *) fw_ptr;
1464 fw_ptr += sizeof(*cmd);
1465 fw_size -= sizeof(*cmd);
1466
1467 if (fw_size < cmd->plen) {
1468 BT_ERR("%s: BCM: patch %s is corrupted",
1469 hdev->name, fw_name);
1470 ret = -EINVAL;
1471 goto reset_fw;
1472 }
1473
1474 cmd_param = fw_ptr;
1475 fw_ptr += cmd->plen;
1476 fw_size -= cmd->plen;
1477
1478 opcode = le16_to_cpu(cmd->opcode);
1479
1480 skb = __hci_cmd_sync(hdev, opcode, cmd->plen, cmd_param,
1481 HCI_INIT_TIMEOUT);
1482 if (IS_ERR(skb)) {
1483 ret = PTR_ERR(skb);
1484 BT_ERR("%s: BCM: patch command %04x failed (%ld)",
1485 hdev->name, opcode, ret);
1486 goto reset_fw;
1487 }
1488 kfree_skb(skb);
1489 }
1490
1491 /* 250 msec delay after Launch Ram completes */
1492 msleep(250);
1493
1494 reset_fw:
1495 /* Reset */
1496 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1497 if (IS_ERR(skb)) {
1498 ret = PTR_ERR(skb);
1499 BT_ERR("%s: HCI_OP_RESET failed (%ld)", hdev->name, ret);
1500 goto done;
1501 }
1502 kfree_skb(skb);
1503
1504 /* Read Local Version Info */
1505 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1506 HCI_INIT_TIMEOUT);
1507 if (IS_ERR(skb)) {
1508 ret = PTR_ERR(skb);
1509 BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION failed (%ld)",
1510 hdev->name, ret);
1511 goto done;
1512 }
1513
1514 if (skb->len != sizeof(*ver)) {
1515 BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION event length mismatch",
1516 hdev->name);
1517 kfree_skb(skb);
1518 ret = -EIO;
1519 goto done;
1520 }
1521
1522 ver = (struct hci_rp_read_local_version *) skb->data;
1523 BT_INFO("%s: BCM: firmware hci_ver=%02x hci_rev=%04x lmp_ver=%02x "
1524 "lmp_subver=%04x", hdev->name, ver->hci_ver, ver->hci_rev,
1525 ver->lmp_ver, ver->lmp_subver);
1526 kfree_skb(skb);
1527
1528 done:
1529 release_firmware(fw);
1530
1531 return ret;
1532 }
1533
1534 static int btusb_probe(struct usb_interface *intf,
1535 const struct usb_device_id *id)
1536 {
1537 struct usb_endpoint_descriptor *ep_desc;
1538 struct btusb_data *data;
1539 struct hci_dev *hdev;
1540 int i, err;
1541
1542 BT_DBG("intf %p id %p", intf, id);
1543
1544 /* interface numbers are hardcoded in the spec */
1545 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
1546 return -ENODEV;
1547
1548 if (!id->driver_info) {
1549 const struct usb_device_id *match;
1550 match = usb_match_id(intf, blacklist_table);
1551 if (match)
1552 id = match;
1553 }
1554
1555 if (id->driver_info == BTUSB_IGNORE)
1556 return -ENODEV;
1557
1558 if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
1559 return -ENODEV;
1560
1561 if (ignore_csr && id->driver_info & BTUSB_CSR)
1562 return -ENODEV;
1563
1564 if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
1565 return -ENODEV;
1566
1567 if (id->driver_info & BTUSB_ATH3012) {
1568 struct usb_device *udev = interface_to_usbdev(intf);
1569
1570 /* Old firmware would otherwise let ath3k driver load
1571 * patch and sysconfig files */
1572 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
1573 return -ENODEV;
1574 }
1575
1576 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
1577 if (!data)
1578 return -ENOMEM;
1579
1580 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1581 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1582
1583 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
1584 data->intr_ep = ep_desc;
1585 continue;
1586 }
1587
1588 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
1589 data->bulk_tx_ep = ep_desc;
1590 continue;
1591 }
1592
1593 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
1594 data->bulk_rx_ep = ep_desc;
1595 continue;
1596 }
1597 }
1598
1599 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
1600 return -ENODEV;
1601
1602 data->cmdreq_type = USB_TYPE_CLASS;
1603
1604 data->udev = interface_to_usbdev(intf);
1605 data->intf = intf;
1606
1607 spin_lock_init(&data->lock);
1608
1609 INIT_WORK(&data->work, btusb_work);
1610 INIT_WORK(&data->waker, btusb_waker);
1611 spin_lock_init(&data->txlock);
1612
1613 init_usb_anchor(&data->tx_anchor);
1614 init_usb_anchor(&data->intr_anchor);
1615 init_usb_anchor(&data->bulk_anchor);
1616 init_usb_anchor(&data->isoc_anchor);
1617 init_usb_anchor(&data->deferred);
1618
1619 hdev = hci_alloc_dev();
1620 if (!hdev)
1621 return -ENOMEM;
1622
1623 hdev->bus = HCI_USB;
1624 hci_set_drvdata(hdev, data);
1625
1626 data->hdev = hdev;
1627
1628 SET_HCIDEV_DEV(hdev, &intf->dev);
1629
1630 hdev->open = btusb_open;
1631 hdev->close = btusb_close;
1632 hdev->flush = btusb_flush;
1633 hdev->send = btusb_send_frame;
1634 hdev->notify = btusb_notify;
1635
1636 if (id->driver_info & BTUSB_BCM92035)
1637 hdev->setup = btusb_setup_bcm92035;
1638
1639 if (id->driver_info & BTUSB_BCM_PATCHRAM)
1640 hdev->setup = btusb_setup_bcm_patchram;
1641
1642 if (id->driver_info & BTUSB_INTEL)
1643 hdev->setup = btusb_setup_intel;
1644
1645 /* Interface numbers are hardcoded in the specification */
1646 data->isoc = usb_ifnum_to_if(data->udev, 1);
1647
1648 if (!reset)
1649 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1650
1651 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1652 if (!disable_scofix)
1653 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1654 }
1655
1656 if (id->driver_info & BTUSB_BROKEN_ISOC)
1657 data->isoc = NULL;
1658
1659 if (id->driver_info & BTUSB_DIGIANSWER) {
1660 data->cmdreq_type = USB_TYPE_VENDOR;
1661 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1662 }
1663
1664 if (id->driver_info & BTUSB_CSR) {
1665 struct usb_device *udev = data->udev;
1666 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
1667
1668 /* Old firmware would otherwise execute USB reset */
1669 if (bcdDevice < 0x117)
1670 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1671
1672 /* Fake CSR devices with broken commands */
1673 if (bcdDevice <= 0x100)
1674 hdev->setup = btusb_setup_csr;
1675 }
1676
1677 if (id->driver_info & BTUSB_SNIFFER) {
1678 struct usb_device *udev = data->udev;
1679
1680 /* New sniffer firmware has crippled HCI interface */
1681 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1682 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1683
1684 data->isoc = NULL;
1685 }
1686
1687 if (data->isoc) {
1688 err = usb_driver_claim_interface(&btusb_driver,
1689 data->isoc, data);
1690 if (err < 0) {
1691 hci_free_dev(hdev);
1692 return err;
1693 }
1694 }
1695
1696 err = hci_register_dev(hdev);
1697 if (err < 0) {
1698 hci_free_dev(hdev);
1699 return err;
1700 }
1701
1702 usb_set_intfdata(intf, data);
1703
1704 return 0;
1705 }
1706
1707 static void btusb_disconnect(struct usb_interface *intf)
1708 {
1709 struct btusb_data *data = usb_get_intfdata(intf);
1710 struct hci_dev *hdev;
1711
1712 BT_DBG("intf %p", intf);
1713
1714 if (!data)
1715 return;
1716
1717 hdev = data->hdev;
1718 usb_set_intfdata(data->intf, NULL);
1719
1720 if (data->isoc)
1721 usb_set_intfdata(data->isoc, NULL);
1722
1723 hci_unregister_dev(hdev);
1724
1725 if (intf == data->isoc)
1726 usb_driver_release_interface(&btusb_driver, data->intf);
1727 else if (data->isoc)
1728 usb_driver_release_interface(&btusb_driver, data->isoc);
1729
1730 hci_free_dev(hdev);
1731 }
1732
1733 #ifdef CONFIG_PM
1734 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1735 {
1736 struct btusb_data *data = usb_get_intfdata(intf);
1737
1738 BT_DBG("intf %p", intf);
1739
1740 if (data->suspend_count++)
1741 return 0;
1742
1743 spin_lock_irq(&data->txlock);
1744 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
1745 set_bit(BTUSB_SUSPENDING, &data->flags);
1746 spin_unlock_irq(&data->txlock);
1747 } else {
1748 spin_unlock_irq(&data->txlock);
1749 data->suspend_count--;
1750 return -EBUSY;
1751 }
1752
1753 cancel_work_sync(&data->work);
1754
1755 btusb_stop_traffic(data);
1756 usb_kill_anchored_urbs(&data->tx_anchor);
1757
1758 return 0;
1759 }
1760
1761 static void play_deferred(struct btusb_data *data)
1762 {
1763 struct urb *urb;
1764 int err;
1765
1766 while ((urb = usb_get_from_anchor(&data->deferred))) {
1767 err = usb_submit_urb(urb, GFP_ATOMIC);
1768 if (err < 0)
1769 break;
1770
1771 data->tx_in_flight++;
1772 }
1773 usb_scuttle_anchored_urbs(&data->deferred);
1774 }
1775
1776 static int btusb_resume(struct usb_interface *intf)
1777 {
1778 struct btusb_data *data = usb_get_intfdata(intf);
1779 struct hci_dev *hdev = data->hdev;
1780 int err = 0;
1781
1782 BT_DBG("intf %p", intf);
1783
1784 if (--data->suspend_count)
1785 return 0;
1786
1787 if (!test_bit(HCI_RUNNING, &hdev->flags))
1788 goto done;
1789
1790 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1791 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1792 if (err < 0) {
1793 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1794 goto failed;
1795 }
1796 }
1797
1798 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1799 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1800 if (err < 0) {
1801 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1802 goto failed;
1803 }
1804
1805 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1806 }
1807
1808 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1809 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1810 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1811 else
1812 btusb_submit_isoc_urb(hdev, GFP_NOIO);
1813 }
1814
1815 spin_lock_irq(&data->txlock);
1816 play_deferred(data);
1817 clear_bit(BTUSB_SUSPENDING, &data->flags);
1818 spin_unlock_irq(&data->txlock);
1819 schedule_work(&data->work);
1820
1821 return 0;
1822
1823 failed:
1824 usb_scuttle_anchored_urbs(&data->deferred);
1825 done:
1826 spin_lock_irq(&data->txlock);
1827 clear_bit(BTUSB_SUSPENDING, &data->flags);
1828 spin_unlock_irq(&data->txlock);
1829
1830 return err;
1831 }
1832 #endif
1833
1834 static struct usb_driver btusb_driver = {
1835 .name = "btusb",
1836 .probe = btusb_probe,
1837 .disconnect = btusb_disconnect,
1838 #ifdef CONFIG_PM
1839 .suspend = btusb_suspend,
1840 .resume = btusb_resume,
1841 #endif
1842 .id_table = btusb_table,
1843 .supports_autosuspend = 1,
1844 .disable_hub_initiated_lpm = 1,
1845 };
1846
1847 module_usb_driver(btusb_driver);
1848
1849 module_param(ignore_dga, bool, 0644);
1850 MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1851
1852 module_param(ignore_csr, bool, 0644);
1853 MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1854
1855 module_param(ignore_sniffer, bool, 0644);
1856 MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1857
1858 module_param(disable_scofix, bool, 0644);
1859 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1860
1861 module_param(force_scofix, bool, 0644);
1862 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1863
1864 module_param(reset, bool, 0644);
1865 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1866
1867 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1868 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1869 MODULE_VERSION(VERSION);
1870 MODULE_LICENSE("GPL");
Linux with added FPC-III support