projects / deliverable / linux.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Bluetooth: Add support for Broadcom BCM20702A1 variant
[deliverable/linux.git] / drivers / bluetooth / btusb.c
CommitLineData
5e23b923
MH		 1/*
2 *
3 * Generic Bluetooth USB driver
4 *
9bfa35fe 5 * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org>
5e23b923
MH		 6 *
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 *
22 */
23
5e23b923 24#include <linux/module.h>
5e23b923 25#include <linux/usb.h>
dffd30ee 26#include <linux/firmware.h>
5e23b923
MH		 27
28#include <net/bluetooth/bluetooth.h>
29#include <net/bluetooth/hci_core.h>
30
7bee549e 31#define VERSION "0.6"
cfeb4145 32
90ab5ee9
RR		 33static bool disable_scofix;
34static bool force_scofix;
7a9d4020 35
90ab5ee9 36static bool reset = 1;
cfeb4145
MH		 37
38static struct usb_driver btusb_driver;
39
40#define BTUSB_IGNORE 0x01
7a9d4020
MH		 41#define BTUSB_DIGIANSWER 0x02
42#define BTUSB_CSR 0x04
43#define BTUSB_SNIFFER 0x08
44#define BTUSB_BCM92035 0x10
45#define BTUSB_BROKEN_ISOC 0x20
46#define BTUSB_WRONG_SCO_MTU 0x40
2d25f8b4 47#define BTUSB_ATH3012 0x80
dffd30ee 48#define BTUSB_INTEL 0x100
40df783d
MH		 49#define BTUSB_INTEL_BOOT 0x200
50#define BTUSB_BCM_PATCHRAM 0x400
ae8df494 51#define BTUSB_MARVELL 0x800
5e23b923 52
54265202 53static const struct usb_device_id btusb_table[] = {
5e23b923
MH		 54 /* Generic Bluetooth USB device */
55 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
56
1fa6535f
HR		 57 /* Apple-specific (Broadcom) devices */
58 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01) },
59
178c059e
CYC		 60 /* MediaTek MT76x0E */
61 { USB_DEVICE(0x0e8d, 0x763f) },
62
c510eae3 63 /* Broadcom SoftSailing reporting vendor specific */
2e8b5063 64 { USB_DEVICE(0x0a5c, 0x21e1) },
c510eae3 65
3cd01976
NI		 66 /* Apple MacBookPro 7,1 */
67 { USB_DEVICE(0x05ac, 0x8213) },
68
0a79f674
CL		 69 /* Apple iMac11,1 */
70 { USB_DEVICE(0x05ac, 0x8215) },
71
9c047157
NI		 72 /* Apple MacBookPro6,2 */
73 { USB_DEVICE(0x05ac, 0x8218) },
74
3e3ede7d
EH		 75 /* Apple MacBookAir3,1, MacBookAir3,2 */
76 { USB_DEVICE(0x05ac, 0x821b) },
77
a63b723d
PAVM		 78 /* Apple MacBookAir4,1 */
79 { USB_DEVICE(0x05ac, 0x821f) },
80
88d377b6
MAP		 81 /* Apple MacBookPro8,2 */
82 { USB_DEVICE(0x05ac, 0x821a) },
83
f78b6826
JK		 84 /* Apple MacMini5,1 */
85 { USB_DEVICE(0x05ac, 0x8281) },
86
cfeb4145
MH		 87 /* AVM BlueFRITZ! USB v2.0 */
88 { USB_DEVICE(0x057c, 0x3800) },
89
90 /* Bluetooth Ultraport Module from IBM */
91 { USB_DEVICE(0x04bf, 0x030a) },
92
93 /* ALPS Modules with non-standard id */
94 { USB_DEVICE(0x044e, 0x3001) },
95 { USB_DEVICE(0x044e, 0x3002) },
96
97 /* Ericsson with non-standard id */
98 { USB_DEVICE(0x0bdb, 0x1002) },
99
100 /* Canyon CN-BTU1 with HID interfaces */
7a9d4020 101 { USB_DEVICE(0x0c10, 0x0000) },
cfeb4145 102
d13431ca 103 /* Broadcom BCM20702A0 */
0b880062
AS		 104 { USB_DEVICE(0x0489, 0xe042) },
105 { USB_DEVICE(0x04ca, 0x2003) },
1ee3ff61 106 { USB_DEVICE(0x0b05, 0x17b5) },
38a172be 107 { USB_DEVICE(0x0b05, 0x17cb) },
d13431ca 108 { USB_DEVICE(0x413c, 0x8197) },
a86c02ea
F		 109 { USB_DEVICE(0x13d3, 0x3404),
110 .driver_info = BTUSB_BCM_PATCHRAM },
d13431ca 111
98514036 112 /* Foxconn - Hon Hai */
ee66401b 113 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01) },
98514036 114
0b880062 115 /* Broadcom devices with vendor specific id */
10d4c673
PG		 116 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
117 .driver_info = BTUSB_BCM_PATCHRAM },
92c385f4 118
c2aef6e8
MH		 119 /* ASUSTek Computer - Broadcom based */
120 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01) },
121
5bcecf32
KB		 122 /* Belkin F8065bf - Broadcom based */
123 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01) },
124
9113bfd8
JK		 125 /* IMC Networks - Broadcom based */
126 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01) },
127
40df783d 128 /* Intel Bluetooth USB Bootloader (RAM module) */
d92f2df0
MH		 129 { USB_DEVICE(0x8087, 0x0a5a),
130 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
40df783d 131
5e23b923
MH		 132 { } /* Terminating entry */
133};
134
135MODULE_DEVICE_TABLE(usb, btusb_table);
136
54265202 137static const struct usb_device_id blacklist_table[] = {
cfeb4145
MH		 138 /* CSR BlueCore devices */
139 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
140
141 /* Broadcom BCM2033 without firmware */
142 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
143
be93112a 144 /* Atheros 3011 with sflash firmware */
0b880062
AS		 145 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
146 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
147 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
be93112a 148 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
6eda541d 149 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
2a7bcccc 150 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
be93112a 151
509e7861
CYC		 152 /* Atheros AR9285 Malbec with sflash firmware */
153 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
154
d9f51b51 155 /* Atheros 3012 with sflash firmware */
0b880062
AS		 156 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
157 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
158 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
159 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
160 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
4b552bc9 161 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 162 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
163 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
164 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
165 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
1fb4e09a 166 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 167 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
168 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
169 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
170 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
89d2975f 171 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
a735f9e2 172 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
d66629c1 173 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
2d25f8b4 174 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
94a32d10 175 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
07c0ea87 176 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
b131237c 177 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
1e56f1eb 178 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
0b880062 179 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
ebaf5795 180 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
0b880062 181 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
ac71311e 182 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
0a3658cc 183 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 184 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
185 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
eed307e2 186 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
5b77a1f3 187 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
fa2f1394 188 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
d9f51b51 189
e9036e33
CYC		 190 /* Atheros AR5BBU12 with sflash firmware */
191 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
192
85d59726 193 /* Atheros AR5BBU12 with sflash firmware */
bc21fde2 194 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
0b880062 195 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
85d59726 196
cfeb4145 197 /* Broadcom BCM2035 */
7a9d4020 198 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
0b880062
AS		 199 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
200 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 201
202 /* Broadcom BCM2045 */
7a9d4020
MH		 203 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
204 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
bdbef3d6 205
cfeb4145 206 /* IBM/Lenovo ThinkPad with Broadcom chip */
7a9d4020
MH		 207 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
208 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 209
210 /* HP laptop with Broadcom chip */
7a9d4020 211 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 212
213 /* Dell laptop with Broadcom chip */
7a9d4020 214 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 215
5ddd4a60 216 /* Dell Wireless 370 and 410 devices */
7a9d4020 217 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
5ddd4a60 218 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 219
7a9d4020
MH		 220 /* Belkin F8T012 and F8T013 devices */
221 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
222 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 223
5ddd4a60
MH		 224 /* Asus WL-BTD202 device */
225 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
226
227 /* Kensington Bluetooth USB adapter */
228 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
229
cfeb4145
MH		 230 /* RTX Telecom based adapters with buggy SCO support */
231 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
232 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
233
234 /* CONWISE Technology based adapters with buggy SCO support */
235 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
236
cfeb4145
MH		 237 /* Digianswer devices */
238 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
239 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
240
241 /* CSR BlueCore Bluetooth Sniffer */
4f64fa80
MH		 242 { USB_DEVICE(0x0a12, 0x0002),
243 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
cfeb4145
MH		 244
245 /* Frontline ComProbe Bluetooth Sniffer */
4f64fa80
MH		 246 { USB_DEVICE(0x16d3, 0x0002),
247 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
cfeb4145 248
dffd30ee
THJA		 249 /* Intel Bluetooth device */
250 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
ef4e5e4a 251 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL },
dffd30ee 252
ae8df494
AK		 253 /* Marvell device */
254 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
255 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
256
5e23b923
MH		 257 { } /* Terminating entry */
258};
259
9bfa35fe
MH		 260#define BTUSB_MAX_ISOC_FRAMES 10
261
5e23b923
MH		 262#define BTUSB_INTR_RUNNING 0
263#define BTUSB_BULK_RUNNING 1
9bfa35fe 264#define BTUSB_ISOC_RUNNING 2
7bee549e 265#define BTUSB_SUSPENDING 3
08b8b6c4 266#define BTUSB_DID_ISO_RESUME 4
5e23b923
MH		 267
268struct btusb_data {
269 struct hci_dev *hdev;
270 struct usb_device *udev;
5fbcd260 271 struct usb_interface *intf;
9bfa35fe 272 struct usb_interface *isoc;
5e23b923 273
5e23b923
MH		 274 unsigned long flags;
275
276 struct work_struct work;
7bee549e 277 struct work_struct waker;
5e23b923 278
803b5836 279 struct usb_anchor deferred;
5e23b923 280 struct usb_anchor tx_anchor;
803b5836
MH		 281 int tx_in_flight;
282 spinlock_t txlock;
283
5e23b923
MH		 284 struct usb_anchor intr_anchor;
285 struct usb_anchor bulk_anchor;
9bfa35fe 286 struct usb_anchor isoc_anchor;
803b5836
MH		 287 spinlock_t rxlock;
288
289 struct sk_buff *evt_skb;
290 struct sk_buff *acl_skb;
291 struct sk_buff *sco_skb;
5e23b923
MH		 292
293 struct usb_endpoint_descriptor *intr_ep;
294 struct usb_endpoint_descriptor *bulk_tx_ep;
295 struct usb_endpoint_descriptor *bulk_rx_ep;
9bfa35fe
MH		 296 struct usb_endpoint_descriptor *isoc_tx_ep;
297 struct usb_endpoint_descriptor *isoc_rx_ep;
298
7a9d4020
MH		 299 __u8 cmdreq_type;
300
43c2e57f 301 unsigned int sco_num;
9bfa35fe 302 int isoc_altsetting;
6a88adf2 303 int suspend_count;
2cbd3f5c
MH		 304
305 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
5e23b923
MH		 306};
307
803b5836
MH		 308static inline void btusb_free_frags(struct btusb_data *data)
309{
310 unsigned long flags;
311
312 spin_lock_irqsave(&data->rxlock, flags);
313
314 kfree_skb(data->evt_skb);
315 data->evt_skb = NULL;
316
317 kfree_skb(data->acl_skb);
318 data->acl_skb = NULL;
319
320 kfree_skb(data->sco_skb);
321 data->sco_skb = NULL;
322
323 spin_unlock_irqrestore(&data->rxlock, flags);
324}
325
1ffa4ad0
MH		 326static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
327{
803b5836
MH		 328 struct sk_buff *skb;
329 int err = 0;
330
331 spin_lock(&data->rxlock);
332 skb = data->evt_skb;
333
334 while (count) {
335 int len;
336
337 if (!skb) {
338 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
339 if (!skb) {
340 err = -ENOMEM;
341 break;
342 }
343
344 bt_cb(skb)->pkt_type = HCI_EVENT_PKT;
345 bt_cb(skb)->expect = HCI_EVENT_HDR_SIZE;
346 }
347
348 len = min_t(uint, bt_cb(skb)->expect, count);
349 memcpy(skb_put(skb, len), buffer, len);
350
351 count -= len;
352 buffer += len;
353 bt_cb(skb)->expect -= len;
354
355 if (skb->len == HCI_EVENT_HDR_SIZE) {
356 /* Complete event header */
357 bt_cb(skb)->expect = hci_event_hdr(skb)->plen;
358
359 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
360 kfree_skb(skb);
361 skb = NULL;
362
363 err = -EILSEQ;
364 break;
365 }
366 }
367
368 if (bt_cb(skb)->expect == 0) {
369 /* Complete frame */
370 hci_recv_frame(data->hdev, skb);
371 skb = NULL;
372 }
373 }
374
375 data->evt_skb = skb;
376 spin_unlock(&data->rxlock);
377
378 return err;
1ffa4ad0
MH		 379}
380
381static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
382{
803b5836
MH		 383 struct sk_buff *skb;
384 int err = 0;
385
386 spin_lock(&data->rxlock);
387 skb = data->acl_skb;
388
389 while (count) {
390 int len;
391
392 if (!skb) {
393 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
394 if (!skb) {
395 err = -ENOMEM;
396 break;
397 }
398
399 bt_cb(skb)->pkt_type = HCI_ACLDATA_PKT;
400 bt_cb(skb)->expect = HCI_ACL_HDR_SIZE;
401 }
402
403 len = min_t(uint, bt_cb(skb)->expect, count);
404 memcpy(skb_put(skb, len), buffer, len);
405
406 count -= len;
407 buffer += len;
408 bt_cb(skb)->expect -= len;
409
410 if (skb->len == HCI_ACL_HDR_SIZE) {
411 __le16 dlen = hci_acl_hdr(skb)->dlen;
412
413 /* Complete ACL header */
414 bt_cb(skb)->expect = __le16_to_cpu(dlen);
415
416 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
417 kfree_skb(skb);
418 skb = NULL;
419
420 err = -EILSEQ;
421 break;
422 }
423 }
424
425 if (bt_cb(skb)->expect == 0) {
426 /* Complete frame */
427 hci_recv_frame(data->hdev, skb);
428 skb = NULL;
429 }
430 }
431
432 data->acl_skb = skb;
433 spin_unlock(&data->rxlock);
434
435 return err;
1ffa4ad0
MH		 436}
437
438static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
439{
803b5836
MH		 440 struct sk_buff *skb;
441 int err = 0;
442
443 spin_lock(&data->rxlock);
444 skb = data->sco_skb;
445
446 while (count) {
447 int len;
448
449 if (!skb) {
450 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
451 if (!skb) {
452 err = -ENOMEM;
453 break;
454 }
455
456 bt_cb(skb)->pkt_type = HCI_SCODATA_PKT;
457 bt_cb(skb)->expect = HCI_SCO_HDR_SIZE;
458 }
459
460 len = min_t(uint, bt_cb(skb)->expect, count);
461 memcpy(skb_put(skb, len), buffer, len);
462
463 count -= len;
464 buffer += len;
465 bt_cb(skb)->expect -= len;
466
467 if (skb->len == HCI_SCO_HDR_SIZE) {
468 /* Complete SCO header */
469 bt_cb(skb)->expect = hci_sco_hdr(skb)->dlen;
470
471 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
472 kfree_skb(skb);
473 skb = NULL;
474
475 err = -EILSEQ;
476 break;
477 }
478 }
479
480 if (bt_cb(skb)->expect == 0) {
481 /* Complete frame */
482 hci_recv_frame(data->hdev, skb);
483 skb = NULL;
484 }
485 }
486
487 data->sco_skb = skb;
488 spin_unlock(&data->rxlock);
489
490 return err;
1ffa4ad0
MH		 491}
492
5e23b923
MH		 493static void btusb_intr_complete(struct urb *urb)
494{
495 struct hci_dev *hdev = urb->context;
155961e8 496 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 497 int err;
498
89e7533d
MH		 499 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
500 urb->actual_length);
5e23b923
MH		 501
502 if (!test_bit(HCI_RUNNING, &hdev->flags))
503 return;
504
505 if (urb->status == 0) {
9bfa35fe
MH		 506 hdev->stat.byte_rx += urb->actual_length;
507
1ffa4ad0
MH		 508 if (btusb_recv_intr(data, urb->transfer_buffer,
509 urb->actual_length) < 0) {
5e23b923
MH		 510 BT_ERR("%s corrupted event packet", hdev->name);
511 hdev->stat.err_rx++;
512 }
85560c4a
CC		 513 } else if (urb->status == -ENOENT) {
514 /* Avoid suspend failed when usb_kill_urb */
515 return;
5e23b923
MH		 516 }
517
518 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
519 return;
520
7bee549e 521 usb_mark_last_busy(data->udev);
5e23b923
MH		 522 usb_anchor_urb(urb, &data->intr_anchor);
523
524 err = usb_submit_urb(urb, GFP_ATOMIC);
525 if (err < 0) {
4935f1c1
PB		 526 /* -EPERM: urb is being killed;
527 * -ENODEV: device got disconnected */
528 if (err != -EPERM && err != -ENODEV)
61faddf6 529 BT_ERR("%s urb %p failed to resubmit (%d)",
89e7533d 530 hdev->name, urb, -err);
5e23b923
MH		 531 usb_unanchor_urb(urb);
532 }
533}
534
2eda66f4 535static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
5e23b923 536{
155961e8 537 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 538 struct urb *urb;
539 unsigned char *buf;
540 unsigned int pipe;
541 int err, size;
542
543 BT_DBG("%s", hdev->name);
544
9bfa35fe
MH		 545 if (!data->intr_ep)
546 return -ENODEV;
547
2eda66f4 548 urb = usb_alloc_urb(0, mem_flags);
5e23b923
MH		 549 if (!urb)
550 return -ENOMEM;
551
552 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
553
2eda66f4 554 buf = kmalloc(size, mem_flags);
5e23b923
MH		 555 if (!buf) {
556 usb_free_urb(urb);
557 return -ENOMEM;
558 }
559
560 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
561
562 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
89e7533d 563 btusb_intr_complete, hdev, data->intr_ep->bInterval);
5e23b923
MH		 564
565 urb->transfer_flags |= URB_FREE_BUFFER;
566
567 usb_anchor_urb(urb, &data->intr_anchor);
568
2eda66f4 569 err = usb_submit_urb(urb, mem_flags);
5e23b923 570 if (err < 0) {
d4b8d1c9
PB		 571 if (err != -EPERM && err != -ENODEV)
572 BT_ERR("%s urb %p submission failed (%d)",
89e7533d 573 hdev->name, urb, -err);
5e23b923 574 usb_unanchor_urb(urb);
5e23b923
MH		 575 }
576
577 usb_free_urb(urb);
578
579 return err;
580}
581
582static void btusb_bulk_complete(struct urb *urb)
583{
584 struct hci_dev *hdev = urb->context;
155961e8 585 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 586 int err;
587
89e7533d
MH		 588 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
589 urb->actual_length);
5e23b923
MH		 590
591 if (!test_bit(HCI_RUNNING, &hdev->flags))
592 return;
593
594 if (urb->status == 0) {
9bfa35fe
MH		 595 hdev->stat.byte_rx += urb->actual_length;
596
2cbd3f5c 597 if (data->recv_bulk(data, urb->transfer_buffer,
1ffa4ad0 598 urb->actual_length) < 0) {
5e23b923
MH		 599 BT_ERR("%s corrupted ACL packet", hdev->name);
600 hdev->stat.err_rx++;
601 }
85560c4a
CC		 602 } else if (urb->status == -ENOENT) {
603 /* Avoid suspend failed when usb_kill_urb */
604 return;
5e23b923
MH		 605 }
606
607 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
608 return;
609
610 usb_anchor_urb(urb, &data->bulk_anchor);
652fd781 611 usb_mark_last_busy(data->udev);
5e23b923
MH		 612
613 err = usb_submit_urb(urb, GFP_ATOMIC);
614 if (err < 0) {
4935f1c1
PB		 615 /* -EPERM: urb is being killed;
616 * -ENODEV: device got disconnected */
617 if (err != -EPERM && err != -ENODEV)
61faddf6 618 BT_ERR("%s urb %p failed to resubmit (%d)",
89e7533d 619 hdev->name, urb, -err);
5e23b923
MH		 620 usb_unanchor_urb(urb);
621 }
622}
623
2eda66f4 624static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
5e23b923 625{
155961e8 626 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 627 struct urb *urb;
628 unsigned char *buf;
629 unsigned int pipe;
290ba200 630 int err, size = HCI_MAX_FRAME_SIZE;
5e23b923
MH		 631
632 BT_DBG("%s", hdev->name);
633
9bfa35fe
MH		 634 if (!data->bulk_rx_ep)
635 return -ENODEV;
636
2eda66f4 637 urb = usb_alloc_urb(0, mem_flags);
5e23b923
MH		 638 if (!urb)
639 return -ENOMEM;
640
2eda66f4 641 buf = kmalloc(size, mem_flags);
5e23b923
MH		 642 if (!buf) {
643 usb_free_urb(urb);
644 return -ENOMEM;
645 }
646
647 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
648
89e7533d
MH		 649 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
650 btusb_bulk_complete, hdev);
5e23b923
MH		 651
652 urb->transfer_flags |= URB_FREE_BUFFER;
653
7bee549e 654 usb_mark_last_busy(data->udev);
5e23b923
MH		 655 usb_anchor_urb(urb, &data->bulk_anchor);
656
2eda66f4 657 err = usb_submit_urb(urb, mem_flags);
5e23b923 658 if (err < 0) {
d4b8d1c9
PB		 659 if (err != -EPERM && err != -ENODEV)
660 BT_ERR("%s urb %p submission failed (%d)",
89e7533d 661 hdev->name, urb, -err);
5e23b923 662 usb_unanchor_urb(urb);
5e23b923
MH		 663 }
664
665 usb_free_urb(urb);
666
667 return err;
668}
669
9bfa35fe
MH		 670static void btusb_isoc_complete(struct urb *urb)
671{
672 struct hci_dev *hdev = urb->context;
155961e8 673 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 674 int i, err;
675
89e7533d
MH		 676 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
677 urb->actual_length);
9bfa35fe
MH		 678
679 if (!test_bit(HCI_RUNNING, &hdev->flags))
680 return;
681
682 if (urb->status == 0) {
683 for (i = 0; i < urb->number_of_packets; i++) {
684 unsigned int offset = urb->iso_frame_desc[i].offset;
685 unsigned int length = urb->iso_frame_desc[i].actual_length;
686
687 if (urb->iso_frame_desc[i].status)
688 continue;
689
690 hdev->stat.byte_rx += length;
691
1ffa4ad0
MH		 692 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
693 length) < 0) {
9bfa35fe
MH		 694 BT_ERR("%s corrupted SCO packet", hdev->name);
695 hdev->stat.err_rx++;
696 }
697 }
85560c4a
CC		 698 } else if (urb->status == -ENOENT) {
699 /* Avoid suspend failed when usb_kill_urb */
700 return;
9bfa35fe
MH		 701 }
702
703 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
704 return;
705
706 usb_anchor_urb(urb, &data->isoc_anchor);
707
708 err = usb_submit_urb(urb, GFP_ATOMIC);
709 if (err < 0) {
4935f1c1
PB		 710 /* -EPERM: urb is being killed;
711 * -ENODEV: device got disconnected */
712 if (err != -EPERM && err != -ENODEV)
61faddf6 713 BT_ERR("%s urb %p failed to resubmit (%d)",
89e7533d 714 hdev->name, urb, -err);
9bfa35fe
MH		 715 usb_unanchor_urb(urb);
716 }
717}
718
42b16b3f 719static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
9bfa35fe
MH		 720{
721 int i, offset = 0;
722
723 BT_DBG("len %d mtu %d", len, mtu);
724
725 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
726 i++, offset += mtu, len -= mtu) {
727 urb->iso_frame_desc[i].offset = offset;
728 urb->iso_frame_desc[i].length = mtu;
729 }
730
731 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
732 urb->iso_frame_desc[i].offset = offset;
733 urb->iso_frame_desc[i].length = len;
734 i++;
735 }
736
737 urb->number_of_packets = i;
738}
739
2eda66f4 740static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
9bfa35fe 741{
155961e8 742 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 743 struct urb *urb;
744 unsigned char *buf;
745 unsigned int pipe;
746 int err, size;
747
748 BT_DBG("%s", hdev->name);
749
750 if (!data->isoc_rx_ep)
751 return -ENODEV;
752
2eda66f4 753 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
9bfa35fe
MH		 754 if (!urb)
755 return -ENOMEM;
756
757 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
758 BTUSB_MAX_ISOC_FRAMES;
759
2eda66f4 760 buf = kmalloc(size, mem_flags);
9bfa35fe
MH		 761 if (!buf) {
762 usb_free_urb(urb);
763 return -ENOMEM;
764 }
765
766 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
767
fa0fb93f 768 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
89e7533d 769 hdev, data->isoc_rx_ep->bInterval);
9bfa35fe 770
89e7533d 771 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
9bfa35fe
MH		 772
773 __fill_isoc_descriptor(urb, size,
89e7533d 774 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
9bfa35fe
MH		 775
776 usb_anchor_urb(urb, &data->isoc_anchor);
777
2eda66f4 778 err = usb_submit_urb(urb, mem_flags);
9bfa35fe 779 if (err < 0) {
d4b8d1c9
PB		 780 if (err != -EPERM && err != -ENODEV)
781 BT_ERR("%s urb %p submission failed (%d)",
89e7533d 782 hdev->name, urb, -err);
9bfa35fe 783 usb_unanchor_urb(urb);
9bfa35fe
MH		 784 }
785
786 usb_free_urb(urb);
787
788 return err;
789}
790
5e23b923 791static void btusb_tx_complete(struct urb *urb)
7bee549e
ON		 792{
793 struct sk_buff *skb = urb->context;
89e7533d 794 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
155961e8 795 struct btusb_data *data = hci_get_drvdata(hdev);
7bee549e 796
89e7533d
MH		 797 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
798 urb->actual_length);
7bee549e
ON		 799
800 if (!test_bit(HCI_RUNNING, &hdev->flags))
801 goto done;
802
803 if (!urb->status)
804 hdev->stat.byte_tx += urb->transfer_buffer_length;
805 else
806 hdev->stat.err_tx++;
807
808done:
809 spin_lock(&data->txlock);
810 data->tx_in_flight--;
811 spin_unlock(&data->txlock);
812
813 kfree(urb->setup_packet);
814
815 kfree_skb(skb);
816}
817
818static void btusb_isoc_tx_complete(struct urb *urb)
5e23b923
MH		 819{
820 struct sk_buff *skb = urb->context;
89e7533d 821 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
5e23b923 822
89e7533d
MH		 823 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
824 urb->actual_length);
5e23b923
MH		 825
826 if (!test_bit(HCI_RUNNING, &hdev->flags))
827 goto done;
828
829 if (!urb->status)
830 hdev->stat.byte_tx += urb->transfer_buffer_length;
831 else
832 hdev->stat.err_tx++;
833
834done:
835 kfree(urb->setup_packet);
836
837 kfree_skb(skb);
838}
839
840static int btusb_open(struct hci_dev *hdev)
841{
155961e8 842 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 843 int err;
844
845 BT_DBG("%s", hdev->name);
846
7bee549e
ON		 847 err = usb_autopm_get_interface(data->intf);
848 if (err < 0)
849 return err;
850
851 data->intf->needs_remote_wakeup = 1;
852
5e23b923 853 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
7bee549e 854 goto done;
5e23b923
MH		 855
856 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
7bee549e 857 goto done;
5e23b923 858
2eda66f4 859 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
43c2e57f
MH		 860 if (err < 0)
861 goto failed;
862
863 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
5e23b923 864 if (err < 0) {
43c2e57f
MH		 865 usb_kill_anchored_urbs(&data->intr_anchor);
866 goto failed;
5e23b923
MH		 867 }
868
43c2e57f
MH		 869 set_bit(BTUSB_BULK_RUNNING, &data->flags);
870 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
871
7bee549e
ON		 872done:
873 usb_autopm_put_interface(data->intf);
43c2e57f
MH		 874 return 0;
875
876failed:
877 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
878 clear_bit(HCI_RUNNING, &hdev->flags);
7bee549e 879 usb_autopm_put_interface(data->intf);
5e23b923
MH		 880 return err;
881}
882
7bee549e
ON		 883static void btusb_stop_traffic(struct btusb_data *data)
884{
885 usb_kill_anchored_urbs(&data->intr_anchor);
886 usb_kill_anchored_urbs(&data->bulk_anchor);
887 usb_kill_anchored_urbs(&data->isoc_anchor);
888}
889
5e23b923
MH		 890static int btusb_close(struct hci_dev *hdev)
891{
155961e8 892 struct btusb_data *data = hci_get_drvdata(hdev);
7bee549e 893 int err;
5e23b923
MH		 894
895 BT_DBG("%s", hdev->name);
896
897 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
898 return 0;
899
e8c3c3d2 900 cancel_work_sync(&data->work);
404291ac 901 cancel_work_sync(&data->waker);
e8c3c3d2 902
9bfa35fe 903 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
5e23b923 904 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
5e23b923 905 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
7bee549e
ON		 906
907 btusb_stop_traffic(data);
803b5836
MH		 908 btusb_free_frags(data);
909
7bee549e
ON		 910 err = usb_autopm_get_interface(data->intf);
911 if (err < 0)
7b8e2c1d 912 goto failed;
7bee549e
ON		 913
914 data->intf->needs_remote_wakeup = 0;
915 usb_autopm_put_interface(data->intf);
5e23b923 916
7b8e2c1d
ON		 917failed:
918 usb_scuttle_anchored_urbs(&data->deferred);
5e23b923
MH		 919 return 0;
920}
921
922static int btusb_flush(struct hci_dev *hdev)
923{
155961e8 924 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 925
926 BT_DBG("%s", hdev->name);
927
928 usb_kill_anchored_urbs(&data->tx_anchor);
803b5836 929 btusb_free_frags(data);
5e23b923
MH		 930
931 return 0;
932}
933
047b2ec8 934static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
5e23b923 935{
155961e8 936 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 937 struct usb_ctrlrequest *dr;
938 struct urb *urb;
939 unsigned int pipe;
5e23b923 940
047b2ec8
MH		 941 urb = usb_alloc_urb(0, GFP_KERNEL);
942 if (!urb)
943 return ERR_PTR(-ENOMEM);
5e23b923 944
047b2ec8
MH		 945 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
946 if (!dr) {
947 usb_free_urb(urb);
948 return ERR_PTR(-ENOMEM);
949 }
5e23b923 950
047b2ec8
MH		 951 dr->bRequestType = data->cmdreq_type;
952 dr->bRequest = 0;
953 dr->wIndex = 0;
954 dr->wValue = 0;
955 dr->wLength = __cpu_to_le16(skb->len);
7bd8f09f 956
047b2ec8 957 pipe = usb_sndctrlpipe(data->udev, 0x00);
5e23b923 958
89e7533d 959 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
047b2ec8 960 skb->data, skb->len, btusb_tx_complete, skb);
5e23b923 961
89e7533d 962 skb->dev = (void *)hdev;
5e23b923 963
047b2ec8
MH		 964 return urb;
965}
5e23b923 966
047b2ec8
MH		 967static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
968{
969 struct btusb_data *data = hci_get_drvdata(hdev);
970 struct urb *urb;
971 unsigned int pipe;
5e23b923 972
047b2ec8
MH		 973 if (!data->bulk_tx_ep)
974 return ERR_PTR(-ENODEV);
9bfa35fe 975
047b2ec8
MH		 976 urb = usb_alloc_urb(0, GFP_KERNEL);
977 if (!urb)
978 return ERR_PTR(-ENOMEM);
5e23b923 979
047b2ec8 980 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
5e23b923 981
047b2ec8
MH		 982 usb_fill_bulk_urb(urb, data->udev, pipe,
983 skb->data, skb->len, btusb_tx_complete, skb);
5e23b923 984
89e7533d 985 skb->dev = (void *)hdev;
5e23b923 986
047b2ec8
MH		 987 return urb;
988}
9bfa35fe 989
047b2ec8
MH		 990static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
991{
992 struct btusb_data *data = hci_get_drvdata(hdev);
993 struct urb *urb;
994 unsigned int pipe;
9bfa35fe 995
047b2ec8
MH		 996 if (!data->isoc_tx_ep)
997 return ERR_PTR(-ENODEV);
9bfa35fe 998
047b2ec8
MH		 999 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1000 if (!urb)
1001 return ERR_PTR(-ENOMEM);
9bfa35fe 1002
047b2ec8 1003 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
9bfa35fe 1004
047b2ec8
MH		 1005 usb_fill_int_urb(urb, data->udev, pipe,
1006 skb->data, skb->len, btusb_isoc_tx_complete,
1007 skb, data->isoc_tx_ep->bInterval);
9bfa35fe 1008
047b2ec8 1009 urb->transfer_flags = URB_ISO_ASAP;
5e23b923 1010
047b2ec8
MH		 1011 __fill_isoc_descriptor(urb, skb->len,
1012 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
5e23b923 1013
89e7533d 1014 skb->dev = (void *)hdev;
047b2ec8
MH		 1015
1016 return urb;
1017}
1018
1019static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
1020{
1021 struct btusb_data *data = hci_get_drvdata(hdev);
1022 int err;
7bee549e 1023
5e23b923
MH		 1024 usb_anchor_urb(urb, &data->tx_anchor);
1025
e9753eff 1026 err = usb_submit_urb(urb, GFP_KERNEL);
5e23b923 1027 if (err < 0) {
5a9b80e2
PB		 1028 if (err != -EPERM && err != -ENODEV)
1029 BT_ERR("%s urb %p submission failed (%d)",
89e7533d 1030 hdev->name, urb, -err);
5e23b923
MH		 1031 kfree(urb->setup_packet);
1032 usb_unanchor_urb(urb);
7bee549e
ON		 1033 } else {
1034 usb_mark_last_busy(data->udev);
5e23b923
MH		 1035 }
1036
54a8a79c 1037 usb_free_urb(urb);
5e23b923
MH		 1038 return err;
1039}
1040
047b2ec8
MH		 1041static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
1042{
1043 struct btusb_data *data = hci_get_drvdata(hdev);
1044 unsigned long flags;
1045 bool suspending;
1046
1047 spin_lock_irqsave(&data->txlock, flags);
1048 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
1049 if (!suspending)
1050 data->tx_in_flight++;
1051 spin_unlock_irqrestore(&data->txlock, flags);
1052
1053 if (!suspending)
1054 return submit_tx_urb(hdev, urb);
1055
1056 usb_anchor_urb(urb, &data->deferred);
1057 schedule_work(&data->waker);
1058
1059 usb_free_urb(urb);
1060 return 0;
1061}
1062
1063static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
1064{
1065 struct urb *urb;
1066
1067 BT_DBG("%s", hdev->name);
1068
1069 if (!test_bit(HCI_RUNNING, &hdev->flags))
1070 return -EBUSY;
1071
1072 switch (bt_cb(skb)->pkt_type) {
1073 case HCI_COMMAND_PKT:
1074 urb = alloc_ctrl_urb(hdev, skb);
1075 if (IS_ERR(urb))
1076 return PTR_ERR(urb);
1077
1078 hdev->stat.cmd_tx++;
1079 return submit_or_queue_tx_urb(hdev, urb);
1080
1081 case HCI_ACLDATA_PKT:
1082 urb = alloc_bulk_urb(hdev, skb);
1083 if (IS_ERR(urb))
1084 return PTR_ERR(urb);
1085
1086 hdev->stat.acl_tx++;
1087 return submit_or_queue_tx_urb(hdev, urb);
1088
1089 case HCI_SCODATA_PKT:
1090 if (hci_conn_num(hdev, SCO_LINK) < 1)
1091 return -ENODEV;
1092
1093 urb = alloc_isoc_urb(hdev, skb);
1094 if (IS_ERR(urb))
1095 return PTR_ERR(urb);
1096
1097 hdev->stat.sco_tx++;
1098 return submit_tx_urb(hdev, urb);
1099 }
1100
1101 return -EILSEQ;
1102}
1103
5e23b923
MH		 1104static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
1105{
155961e8 1106 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1107
1108 BT_DBG("%s evt %d", hdev->name, evt);
1109
014f7bc7
MH		 1110 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
1111 data->sco_num = hci_conn_num(hdev, SCO_LINK);
43c2e57f 1112 schedule_work(&data->work);
a780efa8 1113 }
5e23b923
MH		 1114}
1115
42b16b3f 1116static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
9bfa35fe 1117{
155961e8 1118 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 1119 struct usb_interface *intf = data->isoc;
1120 struct usb_endpoint_descriptor *ep_desc;
1121 int i, err;
1122
1123 if (!data->isoc)
1124 return -ENODEV;
1125
1126 err = usb_set_interface(data->udev, 1, altsetting);
1127 if (err < 0) {
1128 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
1129 return err;
1130 }
1131
1132 data->isoc_altsetting = altsetting;
1133
1134 data->isoc_tx_ep = NULL;
1135 data->isoc_rx_ep = NULL;
1136
1137 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1138 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1139
1140 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
1141 data->isoc_tx_ep = ep_desc;
1142 continue;
1143 }
1144
1145 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
1146 data->isoc_rx_ep = ep_desc;
1147 continue;
1148 }
1149 }
1150
1151 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
1152 BT_ERR("%s invalid SCO descriptors", hdev->name);
1153 return -ENODEV;
1154 }
1155
1156 return 0;
1157}
1158
5e23b923
MH		 1159static void btusb_work(struct work_struct *work)
1160{
1161 struct btusb_data *data = container_of(work, struct btusb_data, work);
1162 struct hci_dev *hdev = data->hdev;
f4001d28 1163 int new_alts;
7bee549e 1164 int err;
5e23b923 1165
014f7bc7 1166 if (data->sco_num > 0) {
08b8b6c4 1167 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
8efdd0cd 1168 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
7bee549e
ON		 1169 if (err < 0) {
1170 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1171 usb_kill_anchored_urbs(&data->isoc_anchor);
1172 return;
1173 }
1174
08b8b6c4 1175 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
7bee549e 1176 }
f4001d28
MA		 1177
1178 if (hdev->voice_setting & 0x0020) {
1179 static const int alts[3] = { 2, 4, 5 };
89e7533d 1180
014f7bc7 1181 new_alts = alts[data->sco_num - 1];
f4001d28 1182 } else {
014f7bc7 1183 new_alts = data->sco_num;
f4001d28
MA		 1184 }
1185
1186 if (data->isoc_altsetting != new_alts) {
9bfa35fe
MH		 1187 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1188 usb_kill_anchored_urbs(&data->isoc_anchor);
1189
f4001d28 1190 if (__set_isoc_interface(hdev, new_alts) < 0)
9bfa35fe
MH		 1191 return;
1192 }
1193
1194 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2eda66f4 1195 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
9bfa35fe
MH		 1196 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1197 else
2eda66f4 1198 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
9bfa35fe
MH		 1199 }
1200 } else {
1201 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1202 usb_kill_anchored_urbs(&data->isoc_anchor);
1203
1204 __set_isoc_interface(hdev, 0);
08b8b6c4 1205 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
8efdd0cd 1206 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
5e23b923
MH		 1207 }
1208}
1209
7bee549e
ON		 1210static void btusb_waker(struct work_struct *work)
1211{
1212 struct btusb_data *data = container_of(work, struct btusb_data, waker);
1213 int err;
1214
1215 err = usb_autopm_get_interface(data->intf);
1216 if (err < 0)
1217 return;
1218
1219 usb_autopm_put_interface(data->intf);
1220}
1221
9f8f962c
MH		 1222static int btusb_setup_bcm92035(struct hci_dev *hdev)
1223{
1224 struct sk_buff *skb;
1225 u8 val = 0x00;
1226
1227 BT_DBG("%s", hdev->name);
1228
1229 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
1230 if (IS_ERR(skb))
1231 BT_ERR("BCM92035 command failed (%ld)", -PTR_ERR(skb));
1232 else
1233 kfree_skb(skb);
1234
1235 return 0;
1236}
1237
81cac64b
MH		 1238static int btusb_setup_csr(struct hci_dev *hdev)
1239{
1240 struct hci_rp_read_local_version *rp;
1241 struct sk_buff *skb;
1242 int ret;
1243
1244 BT_DBG("%s", hdev->name);
1245
1246 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1247 HCI_INIT_TIMEOUT);
1248 if (IS_ERR(skb)) {
1249 BT_ERR("Reading local version failed (%ld)", -PTR_ERR(skb));
1250 return -PTR_ERR(skb);
1251 }
1252
89e7533d 1253 rp = (struct hci_rp_read_local_version *)skb->data;
81cac64b
MH		 1254
1255 if (!rp->status) {
1256 if (le16_to_cpu(rp->manufacturer) != 10) {
1257 /* Clear the reset quirk since this is not an actual
1258 * early Bluetooth 1.1 device from CSR.
1259 */
1260 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1261
1262 /* These fake CSR controllers have all a broken
1263 * stored link key handling and so just disable it.
1264 */
1265 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY,
1266 &hdev->quirks);
1267 }
1268 }
1269
1270 ret = -bt_to_errno(rp->status);
1271
1272 kfree_skb(skb);
1273
1274 return ret;
1275}
1276
dffd30ee
THJA		 1277struct intel_version {
1278 u8 status;
1279 u8 hw_platform;
1280 u8 hw_variant;
1281 u8 hw_revision;
1282 u8 fw_variant;
1283 u8 fw_revision;
1284 u8 fw_build_num;
1285 u8 fw_build_ww;
1286 u8 fw_build_yy;
1287 u8 fw_patch_num;
1288} __packed;
1289
1290static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
89e7533d 1291 struct intel_version *ver)
dffd30ee
THJA		 1292{
1293 const struct firmware *fw;
1294 char fwname[64];
1295 int ret;
1296
1297 snprintf(fwname, sizeof(fwname),
1298 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1299 ver->hw_platform, ver->hw_variant, ver->hw_revision,
1300 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
1301 ver->fw_build_ww, ver->fw_build_yy);
1302
1303 ret = request_firmware(&fw, fwname, &hdev->dev);
1304 if (ret < 0) {
1305 if (ret == -EINVAL) {
1306 BT_ERR("%s Intel firmware file request failed (%d)",
1307 hdev->name, ret);
1308 return NULL;
1309 }
1310
1311 BT_ERR("%s failed to open Intel firmware file: %s(%d)",
1312 hdev->name, fwname, ret);
1313
1314 /* If the correct firmware patch file is not found, use the
1315 * default firmware patch file instead
1316 */
1317 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1318 ver->hw_platform, ver->hw_variant);
1319 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1320 BT_ERR("%s failed to open default Intel fw file: %s",
1321 hdev->name, fwname);
1322 return NULL;
1323 }
1324 }
1325
1326 BT_INFO("%s: Intel Bluetooth firmware file: %s", hdev->name, fwname);
1327
1328 return fw;
1329}
1330
1331static int btusb_setup_intel_patching(struct hci_dev *hdev,
1332 const struct firmware *fw,
1333 const u8 **fw_ptr, int *disable_patch)
1334{
1335 struct sk_buff *skb;
1336 struct hci_command_hdr *cmd;
1337 const u8 *cmd_param;
1338 struct hci_event_hdr *evt = NULL;
1339 const u8 *evt_param = NULL;
1340 int remain = fw->size - (*fw_ptr - fw->data);
1341
1342 /* The first byte indicates the types of the patch command or event.
1343 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1344 * in the current firmware buffer doesn't start with 0x01 or
1345 * the size of remain buffer is smaller than HCI command header,
1346 * the firmware file is corrupted and it should stop the patching
1347 * process.
1348 */
1349 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1350 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name);
1351 return -EINVAL;
1352 }
1353 (*fw_ptr)++;
1354 remain--;
1355
1356 cmd = (struct hci_command_hdr *)(*fw_ptr);
1357 *fw_ptr += sizeof(*cmd);
1358 remain -= sizeof(*cmd);
1359
1360 /* Ensure that the remain firmware data is long enough than the length
1361 * of command parameter. If not, the firmware file is corrupted.
1362 */
1363 if (remain < cmd->plen) {
1364 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name);
1365 return -EFAULT;
1366 }
1367
1368 /* If there is a command that loads a patch in the firmware
1369 * file, then enable the patch upon success, otherwise just
1370 * disable the manufacturer mode, for example patch activation
1371 * is not required when the default firmware patch file is used
1372 * because there are no patch data to load.
1373 */
1374 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1375 *disable_patch = 0;
1376
1377 cmd_param = *fw_ptr;
1378 *fw_ptr += cmd->plen;
1379 remain -= cmd->plen;
1380
1381 /* This reads the expected events when the above command is sent to the
1382 * device. Some vendor commands expects more than one events, for
1383 * example command status event followed by vendor specific event.
1384 * For this case, it only keeps the last expected event. so the command
1385 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1386 * last expected event.
1387 */
1388 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1389 (*fw_ptr)++;
1390 remain--;
1391
1392 evt = (struct hci_event_hdr *)(*fw_ptr);
1393 *fw_ptr += sizeof(*evt);
1394 remain -= sizeof(*evt);
1395
1396 if (remain < evt->plen) {
1397 BT_ERR("%s Intel fw corrupted: invalid evt len",
1398 hdev->name);
1399 return -EFAULT;
1400 }
1401
1402 evt_param = *fw_ptr;
1403 *fw_ptr += evt->plen;
1404 remain -= evt->plen;
1405 }
1406
1407 /* Every HCI commands in the firmware file has its correspond event.
1408 * If event is not found or remain is smaller than zero, the firmware
1409 * file is corrupted.
1410 */
1411 if (!evt || !evt_param || remain < 0) {
1412 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name);
1413 return -EFAULT;
1414 }
1415
1416 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1417 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1418 if (IS_ERR(skb)) {
1419 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)",
1420 hdev->name, cmd->opcode, PTR_ERR(skb));
d9c78e97 1421 return PTR_ERR(skb);
dffd30ee
THJA		 1422 }
1423
1424 /* It ensures that the returned event matches the event data read from
1425 * the firmware file. At fist, it checks the length and then
1426 * the contents of the event.
1427 */
1428 if (skb->len != evt->plen) {
1429 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name,
1430 le16_to_cpu(cmd->opcode));
1431 kfree_skb(skb);
1432 return -EFAULT;
1433 }
1434
1435 if (memcmp(skb->data, evt_param, evt->plen)) {
1436 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)",
1437 hdev->name, le16_to_cpu(cmd->opcode));
1438 kfree_skb(skb);
1439 return -EFAULT;
1440 }
1441 kfree_skb(skb);
1442
1443 return 0;
1444}
1445
40cb0984
MH		 1446#define BDADDR_INTEL (&(bdaddr_t) {{0x00, 0x8b, 0x9e, 0x19, 0x03, 0x00}})
1447
1448static int btusb_check_bdaddr_intel(struct hci_dev *hdev)
1449{
1450 struct sk_buff *skb;
1451 struct hci_rp_read_bd_addr *rp;
1452
1453 skb = __hci_cmd_sync(hdev, HCI_OP_READ_BD_ADDR, 0, NULL,
1454 HCI_INIT_TIMEOUT);
1455 if (IS_ERR(skb)) {
1456 BT_ERR("%s reading Intel device address failed (%ld)",
1457 hdev->name, PTR_ERR(skb));
1458 return PTR_ERR(skb);
1459 }
1460
1461 if (skb->len != sizeof(*rp)) {
1462 BT_ERR("%s Intel device address length mismatch", hdev->name);
1463 kfree_skb(skb);
1464 return -EIO;
1465 }
1466
89e7533d 1467 rp = (struct hci_rp_read_bd_addr *)skb->data;
40cb0984
MH		 1468 if (rp->status) {
1469 BT_ERR("%s Intel device address result failed (%02x)",
1470 hdev->name, rp->status);
1471 kfree_skb(skb);
1472 return -bt_to_errno(rp->status);
1473 }
1474
1475 /* For some Intel based controllers, the default Bluetooth device
1476 * address 00:03:19:9E:8B:00 can be found. These controllers are
1477 * fully operational, but have the danger of duplicate addresses
1478 * and that in turn can cause problems with Bluetooth operation.
1479 */
4739b5b1 1480 if (!bacmp(&rp->bdaddr, BDADDR_INTEL)) {
40cb0984
MH		 1481 BT_ERR("%s found Intel default device address (%pMR)",
1482 hdev->name, &rp->bdaddr);
4739b5b1
MH		 1483 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
1484 }
40cb0984
MH		 1485
1486 kfree_skb(skb);
1487
1488 return 0;
1489}
1490
dffd30ee
THJA		 1491static int btusb_setup_intel(struct hci_dev *hdev)
1492{
1493 struct sk_buff *skb;
1494 const struct firmware *fw;
1495 const u8 *fw_ptr;
1496 int disable_patch;
1497 struct intel_version *ver;
1498
1499 const u8 mfg_enable[] = { 0x01, 0x00 };
1500 const u8 mfg_disable[] = { 0x00, 0x00 };
1501 const u8 mfg_reset_deactivate[] = { 0x00, 0x01 };
1502 const u8 mfg_reset_activate[] = { 0x00, 0x02 };
1503
1504 BT_DBG("%s", hdev->name);
1505
1506 /* The controller has a bug with the first HCI command sent to it
1507 * returning number of completed commands as zero. This would stall the
1508 * command processing in the Bluetooth core.
1509 *
1510 * As a workaround, send HCI Reset command first which will reset the
1511 * number of completed commands and allow normal command processing
1512 * from now on.
1513 */
1514 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1515 if (IS_ERR(skb)) {
1516 BT_ERR("%s sending initial HCI reset command failed (%ld)",
1517 hdev->name, PTR_ERR(skb));
d9c78e97 1518 return PTR_ERR(skb);
dffd30ee
THJA		 1519 }
1520 kfree_skb(skb);
1521
1522 /* Read Intel specific controller version first to allow selection of
1523 * which firmware file to load.
1524 *
1525 * The returned information are hardware variant and revision plus
1526 * firmware variant, revision and build number.
1527 */
1528 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
1529 if (IS_ERR(skb)) {
1530 BT_ERR("%s reading Intel fw version command failed (%ld)",
1531 hdev->name, PTR_ERR(skb));
d9c78e97 1532 return PTR_ERR(skb);
dffd30ee
THJA		 1533 }
1534
1535 if (skb->len != sizeof(*ver)) {
1536 BT_ERR("%s Intel version event length mismatch", hdev->name);
1537 kfree_skb(skb);
1538 return -EIO;
1539 }
1540
1541 ver = (struct intel_version *)skb->data;
1542 if (ver->status) {
1543 BT_ERR("%s Intel fw version event failed (%02x)", hdev->name,
1544 ver->status);
1545 kfree_skb(skb);
1546 return -bt_to_errno(ver->status);
1547 }
1548
1549 BT_INFO("%s: read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1550 hdev->name, ver->hw_platform, ver->hw_variant,
1551 ver->hw_revision, ver->fw_variant, ver->fw_revision,
1552 ver->fw_build_num, ver->fw_build_ww, ver->fw_build_yy,
1553 ver->fw_patch_num);
1554
1555 /* fw_patch_num indicates the version of patch the device currently
1556 * have. If there is no patch data in the device, it is always 0x00.
1557 * So, if it is other than 0x00, no need to patch the deivce again.
1558 */
1559 if (ver->fw_patch_num) {
1560 BT_INFO("%s: Intel device is already patched. patch num: %02x",
1561 hdev->name, ver->fw_patch_num);
1562 kfree_skb(skb);
40cb0984 1563 btusb_check_bdaddr_intel(hdev);
dffd30ee
THJA		 1564 return 0;
1565 }
1566
1567 /* Opens the firmware patch file based on the firmware version read
1568 * from the controller. If it fails to open the matching firmware
1569 * patch file, it tries to open the default firmware patch file.
1570 * If no patch file is found, allow the device to operate without
1571 * a patch.
1572 */
1573 fw = btusb_setup_intel_get_fw(hdev, ver);
1574 if (!fw) {
1575 kfree_skb(skb);
40cb0984 1576 btusb_check_bdaddr_intel(hdev);
dffd30ee
THJA		 1577 return 0;
1578 }
1579 fw_ptr = fw->data;
1580
1581 /* This Intel specific command enables the manufacturer mode of the
1582 * controller.
1583 *
1584 * Only while this mode is enabled, the driver can download the
1585 * firmware patch data and configuration parameters.
1586 */
1587 skb = __hci_cmd_sync(hdev, 0xfc11, 2, mfg_enable, HCI_INIT_TIMEOUT);
1588 if (IS_ERR(skb)) {
1589 BT_ERR("%s entering Intel manufacturer mode failed (%ld)",
1590 hdev->name, PTR_ERR(skb));
1591 release_firmware(fw);
d9c78e97 1592 return PTR_ERR(skb);
dffd30ee
THJA		 1593 }
1594
1595 if (skb->data[0]) {
1596 u8 evt_status = skb->data[0];
89e7533d 1597
dffd30ee
THJA		 1598 BT_ERR("%s enable Intel manufacturer mode event failed (%02x)",
1599 hdev->name, evt_status);
1600 kfree_skb(skb);
1601 release_firmware(fw);
1602 return -bt_to_errno(evt_status);
1603 }
1604 kfree_skb(skb);
1605
1606 disable_patch = 1;
1607
1608 /* The firmware data file consists of list of Intel specific HCI
1609 * commands and its expected events. The first byte indicates the
1610 * type of the message, either HCI command or HCI event.
1611 *
1612 * It reads the command and its expected event from the firmware file,
1613 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1614 * the returned event is compared with the event read from the firmware
1615 * file and it will continue until all the messages are downloaded to
1616 * the controller.
1617 *
1618 * Once the firmware patching is completed successfully,
1619 * the manufacturer mode is disabled with reset and activating the
1620 * downloaded patch.
1621 *
1622 * If the firmware patching fails, the manufacturer mode is
1623 * disabled with reset and deactivating the patch.
1624 *
1625 * If the default patch file is used, no reset is done when disabling
1626 * the manufacturer.
1627 */
1628 while (fw->size > fw_ptr - fw->data) {
1629 int ret;
1630
1631 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1632 &disable_patch);
1633 if (ret < 0)
1634 goto exit_mfg_deactivate;
1635 }
1636
1637 release_firmware(fw);
1638
1639 if (disable_patch)
1640 goto exit_mfg_disable;
1641
1642 /* Patching completed successfully and disable the manufacturer mode
1643 * with reset and activate the downloaded firmware patches.
1644 */
1645 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_activate),
1646 mfg_reset_activate, HCI_INIT_TIMEOUT);
1647 if (IS_ERR(skb)) {
1648 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1649 hdev->name, PTR_ERR(skb));
d9c78e97 1650 return PTR_ERR(skb);
dffd30ee
THJA		 1651 }
1652 kfree_skb(skb);
1653
1654 BT_INFO("%s: Intel Bluetooth firmware patch completed and activated",
1655 hdev->name);
1656
40cb0984 1657 btusb_check_bdaddr_intel(hdev);
dffd30ee
THJA		 1658 return 0;
1659
1660exit_mfg_disable:
1661 /* Disable the manufacturer mode without reset */
1662 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_disable), mfg_disable,
1663 HCI_INIT_TIMEOUT);
1664 if (IS_ERR(skb)) {
1665 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1666 hdev->name, PTR_ERR(skb));
d9c78e97 1667 return PTR_ERR(skb);
dffd30ee
THJA		 1668 }
1669 kfree_skb(skb);
1670
1671 BT_INFO("%s: Intel Bluetooth firmware patch completed", hdev->name);
40cb0984
MH		 1672
1673 btusb_check_bdaddr_intel(hdev);
dffd30ee
THJA		 1674 return 0;
1675
1676exit_mfg_deactivate:
1677 release_firmware(fw);
1678
1679 /* Patching failed. Disable the manufacturer mode with reset and
1680 * deactivate the downloaded firmware patches.
1681 */
1682 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_deactivate),
1683 mfg_reset_deactivate, HCI_INIT_TIMEOUT);
1684 if (IS_ERR(skb)) {
1685 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1686 hdev->name, PTR_ERR(skb));
d9c78e97 1687 return PTR_ERR(skb);
dffd30ee
THJA		 1688 }
1689 kfree_skb(skb);
1690
1691 BT_INFO("%s: Intel Bluetooth firmware patch completed and deactivated",
1692 hdev->name);
1693
40cb0984 1694 btusb_check_bdaddr_intel(hdev);
dffd30ee
THJA		 1695 return 0;
1696}
1697
cb8d6597
MH		 1698static int btusb_set_bdaddr_intel(struct hci_dev *hdev, const bdaddr_t *bdaddr)
1699{
1700 struct sk_buff *skb;
1701 long ret;
1702
1703 skb = __hci_cmd_sync(hdev, 0xfc31, 6, bdaddr, HCI_INIT_TIMEOUT);
1704 if (IS_ERR(skb)) {
1705 ret = PTR_ERR(skb);
1706 BT_ERR("%s: changing Intel device address failed (%ld)",
89e7533d 1707 hdev->name, ret);
cb8d6597
MH		 1708 return ret;
1709 }
1710 kfree_skb(skb);
1711
1712 return 0;
1713}
1714
ae8df494
AK		 1715static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
1716 const bdaddr_t *bdaddr)
1717{
1718 struct sk_buff *skb;
1719 u8 buf[8];
1720 long ret;
1721
1722 buf[0] = 0xfe;
1723 buf[1] = sizeof(bdaddr_t);
1724 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
1725
1726 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
1727 if (IS_ERR(skb)) {
1728 ret = PTR_ERR(skb);
1729 BT_ERR("%s: changing Marvell device address failed (%ld)",
1730 hdev->name, ret);
1731 return ret;
1732 }
1733 kfree_skb(skb);
1734
1735 return 0;
1736}
1737
c8abb73f
MH		 1738#define BDADDR_BCM20702A0 (&(bdaddr_t) {{0x00, 0xa0, 0x02, 0x70, 0x20, 0x00}})
1739
10d4c673
PG		 1740static int btusb_setup_bcm_patchram(struct hci_dev *hdev)
1741{
1742 struct btusb_data *data = hci_get_drvdata(hdev);
1743 struct usb_device *udev = data->udev;
1744 char fw_name[64];
1745 const struct firmware *fw;
1746 const u8 *fw_ptr;
1747 size_t fw_size;
1748 const struct hci_command_hdr *cmd;
1749 const u8 *cmd_param;
1750 u16 opcode;
1751 struct sk_buff *skb;
1752 struct hci_rp_read_local_version *ver;
c8abb73f 1753 struct hci_rp_read_bd_addr *bda;
10d4c673
PG		 1754 long ret;
1755
1756 snprintf(fw_name, sizeof(fw_name), "brcm/%s-%04x-%04x.hcd",
1757 udev->product ? udev->product : "BCM",
1758 le16_to_cpu(udev->descriptor.idVendor),
1759 le16_to_cpu(udev->descriptor.idProduct));
1760
1761 ret = request_firmware(&fw, fw_name, &hdev->dev);
1762 if (ret < 0) {
c8abb73f 1763 BT_INFO("%s: BCM: patch %s not found", hdev->name, fw_name);
10d4c673
PG		 1764 return 0;
1765 }
1766
1767 /* Reset */
1768 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1769 if (IS_ERR(skb)) {
1770 ret = PTR_ERR(skb);
1771 BT_ERR("%s: HCI_OP_RESET failed (%ld)", hdev->name, ret);
1772 goto done;
1773 }
1774 kfree_skb(skb);
1775
1776 /* Read Local Version Info */
1777 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1778 HCI_INIT_TIMEOUT);
1779 if (IS_ERR(skb)) {
1780 ret = PTR_ERR(skb);
1781 BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION failed (%ld)",
89e7533d 1782 hdev->name, ret);
10d4c673
PG		 1783 goto done;
1784 }
1785
1786 if (skb->len != sizeof(*ver)) {
1787 BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION event length mismatch",
89e7533d 1788 hdev->name);
10d4c673
PG		 1789 kfree_skb(skb);
1790 ret = -EIO;
1791 goto done;
1792 }
1793
89e7533d 1794 ver = (struct hci_rp_read_local_version *)skb->data;
10d4c673
PG		 1795 BT_INFO("%s: BCM: patching hci_ver=%02x hci_rev=%04x lmp_ver=%02x "
1796 "lmp_subver=%04x", hdev->name, ver->hci_ver, ver->hci_rev,
1797 ver->lmp_ver, ver->lmp_subver);
1798 kfree_skb(skb);
1799
1800 /* Start Download */
1801 skb = __hci_cmd_sync(hdev, 0xfc2e, 0, NULL, HCI_INIT_TIMEOUT);
1802 if (IS_ERR(skb)) {
1803 ret = PTR_ERR(skb);
1804 BT_ERR("%s: BCM: Download Minidrv command failed (%ld)",
89e7533d 1805 hdev->name, ret);
10d4c673
PG		 1806 goto reset_fw;
1807 }
1808 kfree_skb(skb);
1809
1810 /* 50 msec delay after Download Minidrv completes */
1811 msleep(50);
1812
1813 fw_ptr = fw->data;
1814 fw_size = fw->size;
1815
1816 while (fw_size >= sizeof(*cmd)) {
89e7533d 1817 cmd = (struct hci_command_hdr *)fw_ptr;
10d4c673
PG		 1818 fw_ptr += sizeof(*cmd);
1819 fw_size -= sizeof(*cmd);
1820
1821 if (fw_size < cmd->plen) {
1822 BT_ERR("%s: BCM: patch %s is corrupted",
89e7533d 1823 hdev->name, fw_name);
10d4c673
PG		 1824 ret = -EINVAL;
1825 goto reset_fw;
1826 }
1827
1828 cmd_param = fw_ptr;
1829 fw_ptr += cmd->plen;
1830 fw_size -= cmd->plen;
1831
1832 opcode = le16_to_cpu(cmd->opcode);
1833
1834 skb = __hci_cmd_sync(hdev, opcode, cmd->plen, cmd_param,
1835 HCI_INIT_TIMEOUT);
1836 if (IS_ERR(skb)) {
1837 ret = PTR_ERR(skb);
1838 BT_ERR("%s: BCM: patch command %04x failed (%ld)",
89e7533d 1839 hdev->name, opcode, ret);
10d4c673
PG		 1840 goto reset_fw;
1841 }
1842 kfree_skb(skb);
1843 }
1844
1845 /* 250 msec delay after Launch Ram completes */
1846 msleep(250);
1847
1848reset_fw:
1849 /* Reset */
1850 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1851 if (IS_ERR(skb)) {
1852 ret = PTR_ERR(skb);
1853 BT_ERR("%s: HCI_OP_RESET failed (%ld)", hdev->name, ret);
1854 goto done;
1855 }
1856 kfree_skb(skb);
1857
1858 /* Read Local Version Info */
1859 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1860 HCI_INIT_TIMEOUT);
1861 if (IS_ERR(skb)) {
1862 ret = PTR_ERR(skb);
1863 BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION failed (%ld)",
89e7533d 1864 hdev->name, ret);
10d4c673
PG		 1865 goto done;
1866 }
1867
1868 if (skb->len != sizeof(*ver)) {
1869 BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION event length mismatch",
89e7533d 1870 hdev->name);
10d4c673
PG		 1871 kfree_skb(skb);
1872 ret = -EIO;
1873 goto done;
1874 }
1875
89e7533d 1876 ver = (struct hci_rp_read_local_version *)skb->data;
10d4c673
PG		 1877 BT_INFO("%s: BCM: firmware hci_ver=%02x hci_rev=%04x lmp_ver=%02x "
1878 "lmp_subver=%04x", hdev->name, ver->hci_ver, ver->hci_rev,
1879 ver->lmp_ver, ver->lmp_subver);
1880 kfree_skb(skb);
1881
c8abb73f
MH		 1882 /* Read BD Address */
1883 skb = __hci_cmd_sync(hdev, HCI_OP_READ_BD_ADDR, 0, NULL,
1884 HCI_INIT_TIMEOUT);
1885 if (IS_ERR(skb)) {
1886 ret = PTR_ERR(skb);
1887 BT_ERR("%s: HCI_OP_READ_BD_ADDR failed (%ld)",
89e7533d 1888 hdev->name, ret);
c8abb73f
MH		 1889 goto done;
1890 }
1891
1892 if (skb->len != sizeof(*bda)) {
1893 BT_ERR("%s: HCI_OP_READ_BD_ADDR event length mismatch",
89e7533d 1894 hdev->name);
c8abb73f
MH		 1895 kfree_skb(skb);
1896 ret = -EIO;
1897 goto done;
1898 }
1899
89e7533d 1900 bda = (struct hci_rp_read_bd_addr *)skb->data;
c8abb73f
MH		 1901 if (bda->status) {
1902 BT_ERR("%s: HCI_OP_READ_BD_ADDR error status (%02x)",
1903 hdev->name, bda->status);
1904 kfree_skb(skb);
1905 ret = -bt_to_errno(bda->status);
1906 goto done;
1907 }
1908
1909 /* The address 00:20:70:02:A0:00 indicates a BCM20702A0 controller
1910 * with no configured address.
1911 */
849e5086 1912 if (!bacmp(&bda->bdaddr, BDADDR_BCM20702A0)) {
c8abb73f
MH		 1913 BT_INFO("%s: BCM: using default device address (%pMR)",
1914 hdev->name, &bda->bdaddr);
849e5086
MH		 1915 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
1916 }
c8abb73f
MH		 1917
1918 kfree_skb(skb);
1919
10d4c673
PG		 1920done:
1921 release_firmware(fw);
1922
1923 return ret;
1924}
1925
abbaf50e
MH		 1926static int btusb_set_bdaddr_bcm(struct hci_dev *hdev, const bdaddr_t *bdaddr)
1927{
1928 struct sk_buff *skb;
1929 long ret;
1930
1931 skb = __hci_cmd_sync(hdev, 0xfc01, 6, bdaddr, HCI_INIT_TIMEOUT);
1932 if (IS_ERR(skb)) {
1933 ret = PTR_ERR(skb);
1934 BT_ERR("%s: BCM: Change address command failed (%ld)",
89e7533d 1935 hdev->name, ret);
abbaf50e
MH		 1936 return ret;
1937 }
1938 kfree_skb(skb);
1939
1940 return 0;
1941}
1942
5e23b923 1943static int btusb_probe(struct usb_interface *intf,
89e7533d 1944 const struct usb_device_id *id)
5e23b923
MH		 1945{
1946 struct usb_endpoint_descriptor *ep_desc;
1947 struct btusb_data *data;
1948 struct hci_dev *hdev;
1949 int i, err;
1950
1951 BT_DBG("intf %p id %p", intf, id);
1952
cfeb4145 1953 /* interface numbers are hardcoded in the spec */
5e23b923
MH		 1954 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
1955 return -ENODEV;
1956
1957 if (!id->driver_info) {
1958 const struct usb_device_id *match;
89e7533d 1959
5e23b923
MH		 1960 match = usb_match_id(intf, blacklist_table);
1961 if (match)
1962 id = match;
1963 }
1964
cfeb4145
MH		 1965 if (id->driver_info == BTUSB_IGNORE)
1966 return -ENODEV;
1967
2d25f8b4
SL		 1968 if (id->driver_info & BTUSB_ATH3012) {
1969 struct usb_device *udev = interface_to_usbdev(intf);
1970
1971 /* Old firmware would otherwise let ath3k driver load
1972 * patch and sysconfig files */
1973 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
1974 return -ENODEV;
1975 }
1976
98921dbd 1977 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
5e23b923
MH		 1978 if (!data)
1979 return -ENOMEM;
1980
1981 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1982 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1983
1984 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
1985 data->intr_ep = ep_desc;
1986 continue;
1987 }
1988
1989 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
1990 data->bulk_tx_ep = ep_desc;
1991 continue;
1992 }
1993
1994 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
1995 data->bulk_rx_ep = ep_desc;
1996 continue;
1997 }
1998 }
1999
98921dbd 2000 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
5e23b923 2001 return -ENODEV;
5e23b923 2002
7a9d4020
MH		 2003 data->cmdreq_type = USB_TYPE_CLASS;
2004
5e23b923 2005 data->udev = interface_to_usbdev(intf);
5fbcd260 2006 data->intf = intf;
5e23b923 2007
5e23b923 2008 INIT_WORK(&data->work, btusb_work);
7bee549e 2009 INIT_WORK(&data->waker, btusb_waker);
803b5836
MH		 2010 init_usb_anchor(&data->deferred);
2011 init_usb_anchor(&data->tx_anchor);
7bee549e 2012 spin_lock_init(&data->txlock);
5e23b923 2013
5e23b923
MH		 2014 init_usb_anchor(&data->intr_anchor);
2015 init_usb_anchor(&data->bulk_anchor);
9bfa35fe 2016 init_usb_anchor(&data->isoc_anchor);
803b5836 2017 spin_lock_init(&data->rxlock);
5e23b923 2018
2cbd3f5c
MH		 2019 data->recv_bulk = btusb_recv_bulk;
2020
5e23b923 2021 hdev = hci_alloc_dev();
98921dbd 2022 if (!hdev)
5e23b923 2023 return -ENOMEM;
5e23b923 2024
c13854ce 2025 hdev->bus = HCI_USB;
155961e8 2026 hci_set_drvdata(hdev, data);
5e23b923
MH		 2027
2028 data->hdev = hdev;
2029
2030 SET_HCIDEV_DEV(hdev, &intf->dev);
2031
9f8f962c
MH		 2032 hdev->open = btusb_open;
2033 hdev->close = btusb_close;
2034 hdev->flush = btusb_flush;
2035 hdev->send = btusb_send_frame;
2036 hdev->notify = btusb_notify;
2037
2038 if (id->driver_info & BTUSB_BCM92035)
2039 hdev->setup = btusb_setup_bcm92035;
5e23b923 2040
abbaf50e 2041 if (id->driver_info & BTUSB_BCM_PATCHRAM) {
10d4c673 2042 hdev->setup = btusb_setup_bcm_patchram;
abbaf50e 2043 hdev->set_bdaddr = btusb_set_bdaddr_bcm;
27c3fbe0 2044 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
abbaf50e 2045 }
10d4c673 2046
cb8d6597 2047 if (id->driver_info & BTUSB_INTEL) {
dffd30ee 2048 hdev->setup = btusb_setup_intel;
cb8d6597
MH		 2049 hdev->set_bdaddr = btusb_set_bdaddr_intel;
2050 }
dffd30ee 2051
ae8df494
AK		 2052 if (id->driver_info & BTUSB_MARVELL)
2053 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
2054
40df783d
MH		 2055 if (id->driver_info & BTUSB_INTEL_BOOT)
2056 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
2057
7a9d4020 2058 /* Interface numbers are hardcoded in the specification */
9bfa35fe
MH		 2059 data->isoc = usb_ifnum_to_if(data->udev, 1);
2060
7a9d4020 2061 if (!reset)
a6c511c6 2062 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
cfeb4145
MH		 2063
2064 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
2065 if (!disable_scofix)
2066 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
2067 }
2068
9bfa35fe
MH		 2069 if (id->driver_info & BTUSB_BROKEN_ISOC)
2070 data->isoc = NULL;
2071
7a9d4020
MH		 2072 if (id->driver_info & BTUSB_DIGIANSWER) {
2073 data->cmdreq_type = USB_TYPE_VENDOR;
a6c511c6 2074 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
7a9d4020
MH		 2075 }
2076
2077 if (id->driver_info & BTUSB_CSR) {
2078 struct usb_device *udev = data->udev;
81cac64b 2079 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
7a9d4020
MH		 2080
2081 /* Old firmware would otherwise execute USB reset */
81cac64b 2082 if (bcdDevice < 0x117)
a6c511c6 2083 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
81cac64b
MH		 2084
2085 /* Fake CSR devices with broken commands */
2086 if (bcdDevice <= 0x100)
2087 hdev->setup = btusb_setup_csr;
7a9d4020
MH		 2088 }
2089
cfeb4145 2090 if (id->driver_info & BTUSB_SNIFFER) {
9bfa35fe 2091 struct usb_device *udev = data->udev;
cfeb4145 2092
7a9d4020 2093 /* New sniffer firmware has crippled HCI interface */
cfeb4145
MH		 2094 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
2095 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
2096 }
2097
3a5ef20c
MH		 2098 if (id->driver_info & BTUSB_INTEL_BOOT) {
2099 /* A bug in the bootloader causes that interrupt interface is
2100 * only enabled after receiving SetInterface(0, AltSetting=0).
2101 */
2102 err = usb_set_interface(data->udev, 0, 0);
2103 if (err < 0) {
2104 BT_ERR("failed to set interface 0, alt 0 %d", err);
2105 hci_free_dev(hdev);
2106 return err;
2107 }
2108 }
2109
9bfa35fe
MH		 2110 if (data->isoc) {
2111 err = usb_driver_claim_interface(&btusb_driver,
89e7533d 2112 data->isoc, data);
9bfa35fe
MH		 2113 if (err < 0) {
2114 hci_free_dev(hdev);
9bfa35fe
MH		 2115 return err;
2116 }
2117 }
2118
5e23b923
MH		 2119 err = hci_register_dev(hdev);
2120 if (err < 0) {
2121 hci_free_dev(hdev);
5e23b923
MH		 2122 return err;
2123 }
2124
2125 usb_set_intfdata(intf, data);
2126
2127 return 0;
2128}
2129
2130static void btusb_disconnect(struct usb_interface *intf)
2131{
2132 struct btusb_data *data = usb_get_intfdata(intf);
2133 struct hci_dev *hdev;
2134
2135 BT_DBG("intf %p", intf);
2136
2137 if (!data)
2138 return;
2139
2140 hdev = data->hdev;
5fbcd260
MH		 2141 usb_set_intfdata(data->intf, NULL);
2142
2143 if (data->isoc)
2144 usb_set_intfdata(data->isoc, NULL);
5e23b923
MH		 2145
2146 hci_unregister_dev(hdev);
2147
5fbcd260
MH		 2148 if (intf == data->isoc)
2149 usb_driver_release_interface(&btusb_driver, data->intf);
2150 else if (data->isoc)
2151 usb_driver_release_interface(&btusb_driver, data->isoc);
2152
803b5836 2153 btusb_free_frags(data);
5e23b923
MH		 2154 hci_free_dev(hdev);
2155}
2156
7bee549e 2157#ifdef CONFIG_PM
6a88adf2
MH		 2158static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
2159{
2160 struct btusb_data *data = usb_get_intfdata(intf);
2161
2162 BT_DBG("intf %p", intf);
2163
2164 if (data->suspend_count++)
2165 return 0;
2166
7bee549e 2167 spin_lock_irq(&data->txlock);
5b1b0b81 2168 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
7bee549e
ON		 2169 set_bit(BTUSB_SUSPENDING, &data->flags);
2170 spin_unlock_irq(&data->txlock);
2171 } else {
2172 spin_unlock_irq(&data->txlock);
2173 data->suspend_count--;
2174 return -EBUSY;
2175 }
2176
6a88adf2
MH		 2177 cancel_work_sync(&data->work);
2178
7bee549e 2179 btusb_stop_traffic(data);
6a88adf2
MH		 2180 usb_kill_anchored_urbs(&data->tx_anchor);
2181
6a88adf2
MH		 2182 return 0;
2183}
2184
7bee549e
ON		 2185static void play_deferred(struct btusb_data *data)
2186{
2187 struct urb *urb;
2188 int err;
2189
2190 while ((urb = usb_get_from_anchor(&data->deferred))) {
2191 err = usb_submit_urb(urb, GFP_ATOMIC);
2192 if (err < 0)
2193 break;
2194
2195 data->tx_in_flight++;
2196 }
2197 usb_scuttle_anchored_urbs(&data->deferred);
2198}
2199
6a88adf2
MH		 2200static int btusb_resume(struct usb_interface *intf)
2201{
2202 struct btusb_data *data = usb_get_intfdata(intf);
2203 struct hci_dev *hdev = data->hdev;
7bee549e 2204 int err = 0;
6a88adf2
MH		 2205
2206 BT_DBG("intf %p", intf);
2207
2208 if (--data->suspend_count)
2209 return 0;
2210
2211 if (!test_bit(HCI_RUNNING, &hdev->flags))
7bee549e 2212 goto done;
6a88adf2
MH		 2213
2214 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
2215 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
2216 if (err < 0) {
2217 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
7bee549e 2218 goto failed;
6a88adf2
MH		 2219 }
2220 }
2221
2222 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
43c2e57f
MH		 2223 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
2224 if (err < 0) {
6a88adf2 2225 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
7bee549e
ON		 2226 goto failed;
2227 }
2228
2229 btusb_submit_bulk_urb(hdev, GFP_NOIO);
6a88adf2
MH		 2230 }
2231
2232 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2233 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
2234 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2235 else
2236 btusb_submit_isoc_urb(hdev, GFP_NOIO);
2237 }
2238
7bee549e
ON		 2239 spin_lock_irq(&data->txlock);
2240 play_deferred(data);
2241 clear_bit(BTUSB_SUSPENDING, &data->flags);
2242 spin_unlock_irq(&data->txlock);
2243 schedule_work(&data->work);
2244
6a88adf2 2245 return 0;
7bee549e
ON		 2246
2247failed:
2248 usb_scuttle_anchored_urbs(&data->deferred);
2249done:
2250 spin_lock_irq(&data->txlock);
2251 clear_bit(BTUSB_SUSPENDING, &data->flags);
2252 spin_unlock_irq(&data->txlock);
2253
2254 return err;
6a88adf2 2255}
7bee549e 2256#endif
6a88adf2 2257
5e23b923
MH		 2258static struct usb_driver btusb_driver = {
2259 .name = "btusb",
2260 .probe = btusb_probe,
2261 .disconnect = btusb_disconnect,
7bee549e 2262#ifdef CONFIG_PM
6a88adf2
MH		 2263 .suspend = btusb_suspend,
2264 .resume = btusb_resume,
7bee549e 2265#endif
5e23b923 2266 .id_table = btusb_table,
7bee549e 2267 .supports_autosuspend = 1,
e1f12eb6 2268 .disable_hub_initiated_lpm = 1,
5e23b923
MH		 2269};
2270
93f1508c 2271module_usb_driver(btusb_driver);
5e23b923 2272
cfeb4145
MH		 2273module_param(disable_scofix, bool, 0644);
2274MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
2275
2276module_param(force_scofix, bool, 0644);
2277MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
2278
2279module_param(reset, bool, 0644);
2280MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
2281
5e23b923
MH		 2282MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
2283MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
2284MODULE_VERSION(VERSION);
2285MODULE_LICENSE("GPL");
Linux kernel - Deliverables
This page took 0.691842 seconds and 5 git commands to generate.