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ieee802154: 6lowpan: fix sign of errno return val
[thirdparty/kernel/stable.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
WJS		 108 { USB_DEVICE(0x413c, 0x8197) },
109
98514036 110 /* Foxconn - Hon Hai */
ee66401b 111 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01) },
98514036 112
0b880062 113 /* Broadcom devices with vendor specific id */
10d4c673
PG		 114 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
115 .driver_info = BTUSB_BCM_PATCHRAM },
92c385f4 116
c2aef6e8
MH		 117 /* ASUSTek Computer - Broadcom based */
118 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01) },
119
5bcecf32
KB		 120 /* Belkin F8065bf - Broadcom based */
121 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01) },
122
9113bfd8
JK		 123 /* IMC Networks - Broadcom based */
124 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01) },
125
40df783d 126 /* Intel Bluetooth USB Bootloader (RAM module) */
d92f2df0
MH		 127 { USB_DEVICE(0x8087, 0x0a5a),
128 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
40df783d 129
5e23b923
MH		 130 { } /* Terminating entry */
131};
132
133MODULE_DEVICE_TABLE(usb, btusb_table);
134
54265202 135static const struct usb_device_id blacklist_table[] = {
cfeb4145
MH		 136 /* CSR BlueCore devices */
137 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
138
139 /* Broadcom BCM2033 without firmware */
140 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
141
be93112a 142 /* Atheros 3011 with sflash firmware */
0b880062
AS		 143 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
144 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
145 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
be93112a 146 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
6eda541d 147 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
2a7bcccc 148 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
be93112a 149
509e7861
CYC		 150 /* Atheros AR9285 Malbec with sflash firmware */
151 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
152
d9f51b51 153 /* Atheros 3012 with sflash firmware */
0b880062
AS		 154 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
155 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
156 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
157 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
158 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
159 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
160 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
161 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
162 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
1fb4e09a 163 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 164 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
165 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
166 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
167 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
89d2975f 168 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
a735f9e2 169 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
d66629c1 170 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
2d25f8b4 171 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
94a32d10 172 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
07c0ea87 173 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
b131237c 174 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
1e56f1eb 175 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
0b880062 176 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
ebaf5795 177 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
0b880062 178 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
ac71311e 179 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
0a3658cc 180 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 181 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
182 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
eed307e2 183 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
5b77a1f3 184 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
fa2f1394 185 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
d9f51b51 186
e9036e33
CYC		 187 /* Atheros AR5BBU12 with sflash firmware */
188 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
189
85d59726 190 /* Atheros AR5BBU12 with sflash firmware */
bc21fde2 191 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
0b880062 192 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
85d59726 193
cfeb4145 194 /* Broadcom BCM2035 */
7a9d4020 195 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
0b880062
AS		 196 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
197 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 198
199 /* Broadcom BCM2045 */
7a9d4020
MH		 200 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
201 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
bdbef3d6 202
cfeb4145 203 /* IBM/Lenovo ThinkPad with Broadcom chip */
7a9d4020
MH		 204 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
205 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 206
207 /* HP laptop with Broadcom chip */
7a9d4020 208 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 209
210 /* Dell laptop with Broadcom chip */
7a9d4020 211 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 212
5ddd4a60 213 /* Dell Wireless 370 and 410 devices */
7a9d4020 214 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
5ddd4a60 215 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 216
7a9d4020
MH		 217 /* Belkin F8T012 and F8T013 devices */
218 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
219 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 220
5ddd4a60
MH		 221 /* Asus WL-BTD202 device */
222 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
223
224 /* Kensington Bluetooth USB adapter */
225 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
226
cfeb4145
MH		 227 /* RTX Telecom based adapters with buggy SCO support */
228 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
229 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
230
231 /* CONWISE Technology based adapters with buggy SCO support */
232 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
233
cfeb4145
MH		 234 /* Digianswer devices */
235 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
236 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
237
238 /* CSR BlueCore Bluetooth Sniffer */
4f64fa80
MH		 239 { USB_DEVICE(0x0a12, 0x0002),
240 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
cfeb4145
MH		 241
242 /* Frontline ComProbe Bluetooth Sniffer */
4f64fa80
MH		 243 { USB_DEVICE(0x16d3, 0x0002),
244 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
cfeb4145 245
dffd30ee
THJA		 246 /* Intel Bluetooth device */
247 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
ef4e5e4a 248 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL },
dffd30ee 249
ae8df494
AK		 250 /* Marvell device */
251 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
252 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
253
5e23b923
MH		 254 { } /* Terminating entry */
255};
256
9bfa35fe
MH		 257#define BTUSB_MAX_ISOC_FRAMES 10
258
5e23b923
MH		 259#define BTUSB_INTR_RUNNING 0
260#define BTUSB_BULK_RUNNING 1
9bfa35fe 261#define BTUSB_ISOC_RUNNING 2
7bee549e 262#define BTUSB_SUSPENDING 3
08b8b6c4 263#define BTUSB_DID_ISO_RESUME 4
5e23b923
MH		 264
265struct btusb_data {
266 struct hci_dev *hdev;
267 struct usb_device *udev;
5fbcd260 268 struct usb_interface *intf;
9bfa35fe 269 struct usb_interface *isoc;
5e23b923 270
5e23b923
MH		 271 unsigned long flags;
272
273 struct work_struct work;
7bee549e 274 struct work_struct waker;
5e23b923 275
803b5836 276 struct usb_anchor deferred;
5e23b923 277 struct usb_anchor tx_anchor;
803b5836
MH		 278 int tx_in_flight;
279 spinlock_t txlock;
280
5e23b923
MH		 281 struct usb_anchor intr_anchor;
282 struct usb_anchor bulk_anchor;
9bfa35fe 283 struct usb_anchor isoc_anchor;
803b5836
MH		 284 spinlock_t rxlock;
285
286 struct sk_buff *evt_skb;
287 struct sk_buff *acl_skb;
288 struct sk_buff *sco_skb;
5e23b923
MH		 289
290 struct usb_endpoint_descriptor *intr_ep;
291 struct usb_endpoint_descriptor *bulk_tx_ep;
292 struct usb_endpoint_descriptor *bulk_rx_ep;
9bfa35fe
MH		 293 struct usb_endpoint_descriptor *isoc_tx_ep;
294 struct usb_endpoint_descriptor *isoc_rx_ep;
295
7a9d4020
MH		 296 __u8 cmdreq_type;
297
43c2e57f 298 unsigned int sco_num;
9bfa35fe 299 int isoc_altsetting;
6a88adf2 300 int suspend_count;
5e23b923
MH		 301};
302
803b5836
MH		 303static inline void btusb_free_frags(struct btusb_data *data)
304{
305 unsigned long flags;
306
307 spin_lock_irqsave(&data->rxlock, flags);
308
309 kfree_skb(data->evt_skb);
310 data->evt_skb = NULL;
311
312 kfree_skb(data->acl_skb);
313 data->acl_skb = NULL;
314
315 kfree_skb(data->sco_skb);
316 data->sco_skb = NULL;
317
318 spin_unlock_irqrestore(&data->rxlock, flags);
319}
320
1ffa4ad0
MH		 321static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
322{
803b5836
MH		 323 struct sk_buff *skb;
324 int err = 0;
325
326 spin_lock(&data->rxlock);
327 skb = data->evt_skb;
328
329 while (count) {
330 int len;
331
332 if (!skb) {
333 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
334 if (!skb) {
335 err = -ENOMEM;
336 break;
337 }
338
339 bt_cb(skb)->pkt_type = HCI_EVENT_PKT;
340 bt_cb(skb)->expect = HCI_EVENT_HDR_SIZE;
341 }
342
343 len = min_t(uint, bt_cb(skb)->expect, count);
344 memcpy(skb_put(skb, len), buffer, len);
345
346 count -= len;
347 buffer += len;
348 bt_cb(skb)->expect -= len;
349
350 if (skb->len == HCI_EVENT_HDR_SIZE) {
351 /* Complete event header */
352 bt_cb(skb)->expect = hci_event_hdr(skb)->plen;
353
354 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
355 kfree_skb(skb);
356 skb = NULL;
357
358 err = -EILSEQ;
359 break;
360 }
361 }
362
363 if (bt_cb(skb)->expect == 0) {
364 /* Complete frame */
365 hci_recv_frame(data->hdev, skb);
366 skb = NULL;
367 }
368 }
369
370 data->evt_skb = skb;
371 spin_unlock(&data->rxlock);
372
373 return err;
1ffa4ad0
MH		 374}
375
376static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
377{
803b5836
MH		 378 struct sk_buff *skb;
379 int err = 0;
380
381 spin_lock(&data->rxlock);
382 skb = data->acl_skb;
383
384 while (count) {
385 int len;
386
387 if (!skb) {
388 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
389 if (!skb) {
390 err = -ENOMEM;
391 break;
392 }
393
394 bt_cb(skb)->pkt_type = HCI_ACLDATA_PKT;
395 bt_cb(skb)->expect = HCI_ACL_HDR_SIZE;
396 }
397
398 len = min_t(uint, bt_cb(skb)->expect, count);
399 memcpy(skb_put(skb, len), buffer, len);
400
401 count -= len;
402 buffer += len;
403 bt_cb(skb)->expect -= len;
404
405 if (skb->len == HCI_ACL_HDR_SIZE) {
406 __le16 dlen = hci_acl_hdr(skb)->dlen;
407
408 /* Complete ACL header */
409 bt_cb(skb)->expect = __le16_to_cpu(dlen);
410
411 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
412 kfree_skb(skb);
413 skb = NULL;
414
415 err = -EILSEQ;
416 break;
417 }
418 }
419
420 if (bt_cb(skb)->expect == 0) {
421 /* Complete frame */
422 hci_recv_frame(data->hdev, skb);
423 skb = NULL;
424 }
425 }
426
427 data->acl_skb = skb;
428 spin_unlock(&data->rxlock);
429
430 return err;
1ffa4ad0
MH		 431}
432
433static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
434{
803b5836
MH		 435 struct sk_buff *skb;
436 int err = 0;
437
438 spin_lock(&data->rxlock);
439 skb = data->sco_skb;
440
441 while (count) {
442 int len;
443
444 if (!skb) {
445 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
446 if (!skb) {
447 err = -ENOMEM;
448 break;
449 }
450
451 bt_cb(skb)->pkt_type = HCI_SCODATA_PKT;
452 bt_cb(skb)->expect = HCI_SCO_HDR_SIZE;
453 }
454
455 len = min_t(uint, bt_cb(skb)->expect, count);
456 memcpy(skb_put(skb, len), buffer, len);
457
458 count -= len;
459 buffer += len;
460 bt_cb(skb)->expect -= len;
461
462 if (skb->len == HCI_SCO_HDR_SIZE) {
463 /* Complete SCO header */
464 bt_cb(skb)->expect = hci_sco_hdr(skb)->dlen;
465
466 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
467 kfree_skb(skb);
468 skb = NULL;
469
470 err = -EILSEQ;
471 break;
472 }
473 }
474
475 if (bt_cb(skb)->expect == 0) {
476 /* Complete frame */
477 hci_recv_frame(data->hdev, skb);
478 skb = NULL;
479 }
480 }
481
482 data->sco_skb = skb;
483 spin_unlock(&data->rxlock);
484
485 return err;
1ffa4ad0
MH		 486}
487
5e23b923
MH		 488static void btusb_intr_complete(struct urb *urb)
489{
490 struct hci_dev *hdev = urb->context;
155961e8 491 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 492 int err;
493
89e7533d
MH		 494 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
495 urb->actual_length);
5e23b923
MH		 496
497 if (!test_bit(HCI_RUNNING, &hdev->flags))
498 return;
499
500 if (urb->status == 0) {
9bfa35fe
MH		 501 hdev->stat.byte_rx += urb->actual_length;
502
1ffa4ad0
MH		 503 if (btusb_recv_intr(data, urb->transfer_buffer,
504 urb->actual_length) < 0) {
5e23b923
MH		 505 BT_ERR("%s corrupted event packet", hdev->name);
506 hdev->stat.err_rx++;
507 }
85560c4a
CC		 508 } else if (urb->status == -ENOENT) {
509 /* Avoid suspend failed when usb_kill_urb */
510 return;
5e23b923
MH		 511 }
512
513 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
514 return;
515
7bee549e 516 usb_mark_last_busy(data->udev);
5e23b923
MH		 517 usb_anchor_urb(urb, &data->intr_anchor);
518
519 err = usb_submit_urb(urb, GFP_ATOMIC);
520 if (err < 0) {
4935f1c1
PB		 521 /* -EPERM: urb is being killed;
522 * -ENODEV: device got disconnected */
523 if (err != -EPERM && err != -ENODEV)
61faddf6 524 BT_ERR("%s urb %p failed to resubmit (%d)",
89e7533d 525 hdev->name, urb, -err);
5e23b923
MH		 526 usb_unanchor_urb(urb);
527 }
528}
529
2eda66f4 530static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
5e23b923 531{
155961e8 532 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 533 struct urb *urb;
534 unsigned char *buf;
535 unsigned int pipe;
536 int err, size;
537
538 BT_DBG("%s", hdev->name);
539
9bfa35fe
MH		 540 if (!data->intr_ep)
541 return -ENODEV;
542
2eda66f4 543 urb = usb_alloc_urb(0, mem_flags);
5e23b923
MH		 544 if (!urb)
545 return -ENOMEM;
546
547 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
548
2eda66f4 549 buf = kmalloc(size, mem_flags);
5e23b923
MH		 550 if (!buf) {
551 usb_free_urb(urb);
552 return -ENOMEM;
553 }
554
555 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
556
557 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
89e7533d 558 btusb_intr_complete, hdev, data->intr_ep->bInterval);
5e23b923
MH		 559
560 urb->transfer_flags |= URB_FREE_BUFFER;
561
562 usb_anchor_urb(urb, &data->intr_anchor);
563
2eda66f4 564 err = usb_submit_urb(urb, mem_flags);
5e23b923 565 if (err < 0) {
d4b8d1c9
PB		 566 if (err != -EPERM && err != -ENODEV)
567 BT_ERR("%s urb %p submission failed (%d)",
89e7533d 568 hdev->name, urb, -err);
5e23b923 569 usb_unanchor_urb(urb);
5e23b923
MH		 570 }
571
572 usb_free_urb(urb);
573
574 return err;
575}
576
577static void btusb_bulk_complete(struct urb *urb)
578{
579 struct hci_dev *hdev = urb->context;
155961e8 580 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 581 int err;
582
89e7533d
MH		 583 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
584 urb->actual_length);
5e23b923
MH		 585
586 if (!test_bit(HCI_RUNNING, &hdev->flags))
587 return;
588
589 if (urb->status == 0) {
9bfa35fe
MH		 590 hdev->stat.byte_rx += urb->actual_length;
591
1ffa4ad0
MH		 592 if (btusb_recv_bulk(data, urb->transfer_buffer,
593 urb->actual_length) < 0) {
5e23b923
MH		 594 BT_ERR("%s corrupted ACL packet", hdev->name);
595 hdev->stat.err_rx++;
596 }
85560c4a
CC		 597 } else if (urb->status == -ENOENT) {
598 /* Avoid suspend failed when usb_kill_urb */
599 return;
5e23b923
MH		 600 }
601
602 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
603 return;
604
605 usb_anchor_urb(urb, &data->bulk_anchor);
652fd781 606 usb_mark_last_busy(data->udev);
5e23b923
MH		 607
608 err = usb_submit_urb(urb, GFP_ATOMIC);
609 if (err < 0) {
4935f1c1
PB		 610 /* -EPERM: urb is being killed;
611 * -ENODEV: device got disconnected */
612 if (err != -EPERM && err != -ENODEV)
61faddf6 613 BT_ERR("%s urb %p failed to resubmit (%d)",
89e7533d 614 hdev->name, urb, -err);
5e23b923
MH		 615 usb_unanchor_urb(urb);
616 }
617}
618
2eda66f4 619static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
5e23b923 620{
155961e8 621 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 622 struct urb *urb;
623 unsigned char *buf;
624 unsigned int pipe;
290ba200 625 int err, size = HCI_MAX_FRAME_SIZE;
5e23b923
MH		 626
627 BT_DBG("%s", hdev->name);
628
9bfa35fe
MH		 629 if (!data->bulk_rx_ep)
630 return -ENODEV;
631
2eda66f4 632 urb = usb_alloc_urb(0, mem_flags);
5e23b923
MH		 633 if (!urb)
634 return -ENOMEM;
635
2eda66f4 636 buf = kmalloc(size, mem_flags);
5e23b923
MH		 637 if (!buf) {
638 usb_free_urb(urb);
639 return -ENOMEM;
640 }
641
642 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
643
89e7533d
MH		 644 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
645 btusb_bulk_complete, hdev);
5e23b923
MH		 646
647 urb->transfer_flags |= URB_FREE_BUFFER;
648
7bee549e 649 usb_mark_last_busy(data->udev);
5e23b923
MH		 650 usb_anchor_urb(urb, &data->bulk_anchor);
651
2eda66f4 652 err = usb_submit_urb(urb, mem_flags);
5e23b923 653 if (err < 0) {
d4b8d1c9
PB		 654 if (err != -EPERM && err != -ENODEV)
655 BT_ERR("%s urb %p submission failed (%d)",
89e7533d 656 hdev->name, urb, -err);
5e23b923 657 usb_unanchor_urb(urb);
5e23b923
MH		 658 }
659
660 usb_free_urb(urb);
661
662 return err;
663}
664
9bfa35fe
MH		 665static void btusb_isoc_complete(struct urb *urb)
666{
667 struct hci_dev *hdev = urb->context;
155961e8 668 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 669 int i, err;
670
89e7533d
MH		 671 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
672 urb->actual_length);
9bfa35fe
MH		 673
674 if (!test_bit(HCI_RUNNING, &hdev->flags))
675 return;
676
677 if (urb->status == 0) {
678 for (i = 0; i < urb->number_of_packets; i++) {
679 unsigned int offset = urb->iso_frame_desc[i].offset;
680 unsigned int length = urb->iso_frame_desc[i].actual_length;
681
682 if (urb->iso_frame_desc[i].status)
683 continue;
684
685 hdev->stat.byte_rx += length;
686
1ffa4ad0
MH		 687 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
688 length) < 0) {
9bfa35fe
MH		 689 BT_ERR("%s corrupted SCO packet", hdev->name);
690 hdev->stat.err_rx++;
691 }
692 }
85560c4a
CC		 693 } else if (urb->status == -ENOENT) {
694 /* Avoid suspend failed when usb_kill_urb */
695 return;
9bfa35fe
MH		 696 }
697
698 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
699 return;
700
701 usb_anchor_urb(urb, &data->isoc_anchor);
702
703 err = usb_submit_urb(urb, GFP_ATOMIC);
704 if (err < 0) {
4935f1c1
PB		 705 /* -EPERM: urb is being killed;
706 * -ENODEV: device got disconnected */
707 if (err != -EPERM && err != -ENODEV)
61faddf6 708 BT_ERR("%s urb %p failed to resubmit (%d)",
89e7533d 709 hdev->name, urb, -err);
9bfa35fe
MH		 710 usb_unanchor_urb(urb);
711 }
712}
713
42b16b3f 714static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
9bfa35fe
MH		 715{
716 int i, offset = 0;
717
718 BT_DBG("len %d mtu %d", len, mtu);
719
720 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
721 i++, offset += mtu, len -= mtu) {
722 urb->iso_frame_desc[i].offset = offset;
723 urb->iso_frame_desc[i].length = mtu;
724 }
725
726 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
727 urb->iso_frame_desc[i].offset = offset;
728 urb->iso_frame_desc[i].length = len;
729 i++;
730 }
731
732 urb->number_of_packets = i;
733}
734
2eda66f4 735static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
9bfa35fe 736{
155961e8 737 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 738 struct urb *urb;
739 unsigned char *buf;
740 unsigned int pipe;
741 int err, size;
742
743 BT_DBG("%s", hdev->name);
744
745 if (!data->isoc_rx_ep)
746 return -ENODEV;
747
2eda66f4 748 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
9bfa35fe
MH		 749 if (!urb)
750 return -ENOMEM;
751
752 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
753 BTUSB_MAX_ISOC_FRAMES;
754
2eda66f4 755 buf = kmalloc(size, mem_flags);
9bfa35fe
MH		 756 if (!buf) {
757 usb_free_urb(urb);
758 return -ENOMEM;
759 }
760
761 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
762
fa0fb93f 763 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
89e7533d 764 hdev, data->isoc_rx_ep->bInterval);
9bfa35fe 765
89e7533d 766 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
9bfa35fe
MH		 767
768 __fill_isoc_descriptor(urb, size,
89e7533d 769 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
9bfa35fe
MH		 770
771 usb_anchor_urb(urb, &data->isoc_anchor);
772
2eda66f4 773 err = usb_submit_urb(urb, mem_flags);
9bfa35fe 774 if (err < 0) {
d4b8d1c9
PB		 775 if (err != -EPERM && err != -ENODEV)
776 BT_ERR("%s urb %p submission failed (%d)",
89e7533d 777 hdev->name, urb, -err);
9bfa35fe 778 usb_unanchor_urb(urb);
9bfa35fe
MH		 779 }
780
781 usb_free_urb(urb);
782
783 return err;
784}
785
5e23b923 786static void btusb_tx_complete(struct urb *urb)
7bee549e
ON		 787{
788 struct sk_buff *skb = urb->context;
89e7533d 789 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
155961e8 790 struct btusb_data *data = hci_get_drvdata(hdev);
7bee549e 791
89e7533d
MH		 792 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
793 urb->actual_length);
7bee549e
ON		 794
795 if (!test_bit(HCI_RUNNING, &hdev->flags))
796 goto done;
797
798 if (!urb->status)
799 hdev->stat.byte_tx += urb->transfer_buffer_length;
800 else
801 hdev->stat.err_tx++;
802
803done:
804 spin_lock(&data->txlock);
805 data->tx_in_flight--;
806 spin_unlock(&data->txlock);
807
808 kfree(urb->setup_packet);
809
810 kfree_skb(skb);
811}
812
813static void btusb_isoc_tx_complete(struct urb *urb)
5e23b923
MH		 814{
815 struct sk_buff *skb = urb->context;
89e7533d 816 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
5e23b923 817
89e7533d
MH		 818 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
819 urb->actual_length);
5e23b923
MH		 820
821 if (!test_bit(HCI_RUNNING, &hdev->flags))
822 goto done;
823
824 if (!urb->status)
825 hdev->stat.byte_tx += urb->transfer_buffer_length;
826 else
827 hdev->stat.err_tx++;
828
829done:
830 kfree(urb->setup_packet);
831
832 kfree_skb(skb);
833}
834
835static int btusb_open(struct hci_dev *hdev)
836{
155961e8 837 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 838 int err;
839
840 BT_DBG("%s", hdev->name);
841
7bee549e
ON		 842 err = usb_autopm_get_interface(data->intf);
843 if (err < 0)
844 return err;
845
846 data->intf->needs_remote_wakeup = 1;
847
5e23b923 848 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
7bee549e 849 goto done;
5e23b923
MH		 850
851 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
7bee549e 852 goto done;
5e23b923 853
2eda66f4 854 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
43c2e57f
MH		 855 if (err < 0)
856 goto failed;
857
858 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
5e23b923 859 if (err < 0) {
43c2e57f
MH		 860 usb_kill_anchored_urbs(&data->intr_anchor);
861 goto failed;
5e23b923
MH		 862 }
863
43c2e57f
MH		 864 set_bit(BTUSB_BULK_RUNNING, &data->flags);
865 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
866
7bee549e
ON		 867done:
868 usb_autopm_put_interface(data->intf);
43c2e57f
MH		 869 return 0;
870
871failed:
872 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
873 clear_bit(HCI_RUNNING, &hdev->flags);
7bee549e 874 usb_autopm_put_interface(data->intf);
5e23b923
MH		 875 return err;
876}
877
7bee549e
ON		 878static void btusb_stop_traffic(struct btusb_data *data)
879{
880 usb_kill_anchored_urbs(&data->intr_anchor);
881 usb_kill_anchored_urbs(&data->bulk_anchor);
882 usb_kill_anchored_urbs(&data->isoc_anchor);
883}
884
5e23b923
MH		 885static int btusb_close(struct hci_dev *hdev)
886{
155961e8 887 struct btusb_data *data = hci_get_drvdata(hdev);
7bee549e 888 int err;
5e23b923
MH		 889
890 BT_DBG("%s", hdev->name);
891
892 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
893 return 0;
894
e8c3c3d2 895 cancel_work_sync(&data->work);
404291ac 896 cancel_work_sync(&data->waker);
e8c3c3d2 897
9bfa35fe 898 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
5e23b923 899 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
5e23b923 900 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
7bee549e
ON		 901
902 btusb_stop_traffic(data);
803b5836
MH		 903 btusb_free_frags(data);
904
7bee549e
ON		 905 err = usb_autopm_get_interface(data->intf);
906 if (err < 0)
7b8e2c1d 907 goto failed;
7bee549e
ON		 908
909 data->intf->needs_remote_wakeup = 0;
910 usb_autopm_put_interface(data->intf);
5e23b923 911
7b8e2c1d
ON		 912failed:
913 usb_scuttle_anchored_urbs(&data->deferred);
5e23b923
MH		 914 return 0;
915}
916
917static int btusb_flush(struct hci_dev *hdev)
918{
155961e8 919 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 920
921 BT_DBG("%s", hdev->name);
922
923 usb_kill_anchored_urbs(&data->tx_anchor);
803b5836 924 btusb_free_frags(data);
5e23b923
MH		 925
926 return 0;
927}
928
047b2ec8 929static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
5e23b923 930{
155961e8 931 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 932 struct usb_ctrlrequest *dr;
933 struct urb *urb;
934 unsigned int pipe;
5e23b923 935
047b2ec8
MH		 936 urb = usb_alloc_urb(0, GFP_KERNEL);
937 if (!urb)
938 return ERR_PTR(-ENOMEM);
5e23b923 939
047b2ec8
MH		 940 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
941 if (!dr) {
942 usb_free_urb(urb);
943 return ERR_PTR(-ENOMEM);
944 }
5e23b923 945
047b2ec8
MH		 946 dr->bRequestType = data->cmdreq_type;
947 dr->bRequest = 0;
948 dr->wIndex = 0;
949 dr->wValue = 0;
950 dr->wLength = __cpu_to_le16(skb->len);
7bd8f09f 951
047b2ec8 952 pipe = usb_sndctrlpipe(data->udev, 0x00);
5e23b923 953
89e7533d 954 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
047b2ec8 955 skb->data, skb->len, btusb_tx_complete, skb);
5e23b923 956
89e7533d 957 skb->dev = (void *)hdev;
5e23b923 958
047b2ec8
MH		 959 return urb;
960}
5e23b923 961
047b2ec8
MH		 962static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
963{
964 struct btusb_data *data = hci_get_drvdata(hdev);
965 struct urb *urb;
966 unsigned int pipe;
5e23b923 967
047b2ec8
MH		 968 if (!data->bulk_tx_ep)
969 return ERR_PTR(-ENODEV);
9bfa35fe 970
047b2ec8
MH		 971 urb = usb_alloc_urb(0, GFP_KERNEL);
972 if (!urb)
973 return ERR_PTR(-ENOMEM);
5e23b923 974
047b2ec8 975 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
5e23b923 976
047b2ec8
MH		 977 usb_fill_bulk_urb(urb, data->udev, pipe,
978 skb->data, skb->len, btusb_tx_complete, skb);
5e23b923 979
89e7533d 980 skb->dev = (void *)hdev;
5e23b923 981
047b2ec8
MH		 982 return urb;
983}
9bfa35fe 984
047b2ec8
MH		 985static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
986{
987 struct btusb_data *data = hci_get_drvdata(hdev);
988 struct urb *urb;
989 unsigned int pipe;
9bfa35fe 990
047b2ec8
MH		 991 if (!data->isoc_tx_ep)
992 return ERR_PTR(-ENODEV);
9bfa35fe 993
047b2ec8
MH		 994 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
995 if (!urb)
996 return ERR_PTR(-ENOMEM);
9bfa35fe 997
047b2ec8 998 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
9bfa35fe 999
047b2ec8
MH		 1000 usb_fill_int_urb(urb, data->udev, pipe,
1001 skb->data, skb->len, btusb_isoc_tx_complete,
1002 skb, data->isoc_tx_ep->bInterval);
9bfa35fe 1003
047b2ec8 1004 urb->transfer_flags = URB_ISO_ASAP;
5e23b923 1005
047b2ec8
MH		 1006 __fill_isoc_descriptor(urb, skb->len,
1007 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
5e23b923 1008
89e7533d 1009 skb->dev = (void *)hdev;
047b2ec8
MH		 1010
1011 return urb;
1012}
1013
1014static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
1015{
1016 struct btusb_data *data = hci_get_drvdata(hdev);
1017 int err;
7bee549e 1018
5e23b923
MH		 1019 usb_anchor_urb(urb, &data->tx_anchor);
1020
e9753eff 1021 err = usb_submit_urb(urb, GFP_KERNEL);
5e23b923 1022 if (err < 0) {
5a9b80e2
PB		 1023 if (err != -EPERM && err != -ENODEV)
1024 BT_ERR("%s urb %p submission failed (%d)",
89e7533d 1025 hdev->name, urb, -err);
5e23b923
MH		 1026 kfree(urb->setup_packet);
1027 usb_unanchor_urb(urb);
7bee549e
ON		 1028 } else {
1029 usb_mark_last_busy(data->udev);
5e23b923
MH		 1030 }
1031
54a8a79c 1032 usb_free_urb(urb);
5e23b923
MH		 1033 return err;
1034}
1035
047b2ec8
MH		 1036static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
1037{
1038 struct btusb_data *data = hci_get_drvdata(hdev);
1039 unsigned long flags;
1040 bool suspending;
1041
1042 spin_lock_irqsave(&data->txlock, flags);
1043 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
1044 if (!suspending)
1045 data->tx_in_flight++;
1046 spin_unlock_irqrestore(&data->txlock, flags);
1047
1048 if (!suspending)
1049 return submit_tx_urb(hdev, urb);
1050
1051 usb_anchor_urb(urb, &data->deferred);
1052 schedule_work(&data->waker);
1053
1054 usb_free_urb(urb);
1055 return 0;
1056}
1057
1058static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
1059{
1060 struct urb *urb;
1061
1062 BT_DBG("%s", hdev->name);
1063
1064 if (!test_bit(HCI_RUNNING, &hdev->flags))
1065 return -EBUSY;
1066
1067 switch (bt_cb(skb)->pkt_type) {
1068 case HCI_COMMAND_PKT:
1069 urb = alloc_ctrl_urb(hdev, skb);
1070 if (IS_ERR(urb))
1071 return PTR_ERR(urb);
1072
1073 hdev->stat.cmd_tx++;
1074 return submit_or_queue_tx_urb(hdev, urb);
1075
1076 case HCI_ACLDATA_PKT:
1077 urb = alloc_bulk_urb(hdev, skb);
1078 if (IS_ERR(urb))
1079 return PTR_ERR(urb);
1080
1081 hdev->stat.acl_tx++;
1082 return submit_or_queue_tx_urb(hdev, urb);
1083
1084 case HCI_SCODATA_PKT:
1085 if (hci_conn_num(hdev, SCO_LINK) < 1)
1086 return -ENODEV;
1087
1088 urb = alloc_isoc_urb(hdev, skb);
1089 if (IS_ERR(urb))
1090 return PTR_ERR(urb);
1091
1092 hdev->stat.sco_tx++;
1093 return submit_tx_urb(hdev, urb);
1094 }
1095
1096 return -EILSEQ;
1097}
1098
5e23b923
MH		 1099static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
1100{
155961e8 1101 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1102
1103 BT_DBG("%s evt %d", hdev->name, evt);
1104
014f7bc7
MH		 1105 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
1106 data->sco_num = hci_conn_num(hdev, SCO_LINK);
43c2e57f 1107 schedule_work(&data->work);
a780efa8 1108 }
5e23b923
MH		 1109}
1110
42b16b3f 1111static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
9bfa35fe 1112{
155961e8 1113 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 1114 struct usb_interface *intf = data->isoc;
1115 struct usb_endpoint_descriptor *ep_desc;
1116 int i, err;
1117
1118 if (!data->isoc)
1119 return -ENODEV;
1120
1121 err = usb_set_interface(data->udev, 1, altsetting);
1122 if (err < 0) {
1123 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
1124 return err;
1125 }
1126
1127 data->isoc_altsetting = altsetting;
1128
1129 data->isoc_tx_ep = NULL;
1130 data->isoc_rx_ep = NULL;
1131
1132 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1133 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1134
1135 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
1136 data->isoc_tx_ep = ep_desc;
1137 continue;
1138 }
1139
1140 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
1141 data->isoc_rx_ep = ep_desc;
1142 continue;
1143 }
1144 }
1145
1146 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
1147 BT_ERR("%s invalid SCO descriptors", hdev->name);
1148 return -ENODEV;
1149 }
1150
1151 return 0;
1152}
1153
5e23b923
MH		 1154static void btusb_work(struct work_struct *work)
1155{
1156 struct btusb_data *data = container_of(work, struct btusb_data, work);
1157 struct hci_dev *hdev = data->hdev;
f4001d28 1158 int new_alts;
7bee549e 1159 int err;
5e23b923 1160
014f7bc7 1161 if (data->sco_num > 0) {
08b8b6c4 1162 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
8efdd0cd 1163 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
7bee549e
ON		 1164 if (err < 0) {
1165 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1166 usb_kill_anchored_urbs(&data->isoc_anchor);
1167 return;
1168 }
1169
08b8b6c4 1170 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
7bee549e 1171 }
f4001d28
MA		 1172
1173 if (hdev->voice_setting & 0x0020) {
1174 static const int alts[3] = { 2, 4, 5 };
89e7533d 1175
014f7bc7 1176 new_alts = alts[data->sco_num - 1];
f4001d28 1177 } else {
014f7bc7 1178 new_alts = data->sco_num;
f4001d28
MA		 1179 }
1180
1181 if (data->isoc_altsetting != new_alts) {
9bfa35fe
MH		 1182 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1183 usb_kill_anchored_urbs(&data->isoc_anchor);
1184
f4001d28 1185 if (__set_isoc_interface(hdev, new_alts) < 0)
9bfa35fe
MH		 1186 return;
1187 }
1188
1189 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2eda66f4 1190 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
9bfa35fe
MH		 1191 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1192 else
2eda66f4 1193 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
9bfa35fe
MH		 1194 }
1195 } else {
1196 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1197 usb_kill_anchored_urbs(&data->isoc_anchor);
1198
1199 __set_isoc_interface(hdev, 0);
08b8b6c4 1200 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
8efdd0cd 1201 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
5e23b923
MH		 1202 }
1203}
1204
7bee549e
ON		 1205static void btusb_waker(struct work_struct *work)
1206{
1207 struct btusb_data *data = container_of(work, struct btusb_data, waker);
1208 int err;
1209
1210 err = usb_autopm_get_interface(data->intf);
1211 if (err < 0)
1212 return;
1213
1214 usb_autopm_put_interface(data->intf);
1215}
1216
9f8f962c
MH		 1217static int btusb_setup_bcm92035(struct hci_dev *hdev)
1218{
1219 struct sk_buff *skb;
1220 u8 val = 0x00;
1221
1222 BT_DBG("%s", hdev->name);
1223
1224 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
1225 if (IS_ERR(skb))
1226 BT_ERR("BCM92035 command failed (%ld)", -PTR_ERR(skb));
1227 else
1228 kfree_skb(skb);
1229
1230 return 0;
1231}
1232
81cac64b
MH		 1233static int btusb_setup_csr(struct hci_dev *hdev)
1234{
1235 struct hci_rp_read_local_version *rp;
1236 struct sk_buff *skb;
1237 int ret;
1238
1239 BT_DBG("%s", hdev->name);
1240
1241 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1242 HCI_INIT_TIMEOUT);
1243 if (IS_ERR(skb)) {
1244 BT_ERR("Reading local version failed (%ld)", -PTR_ERR(skb));
1245 return -PTR_ERR(skb);
1246 }
1247
89e7533d 1248 rp = (struct hci_rp_read_local_version *)skb->data;
81cac64b
MH		 1249
1250 if (!rp->status) {
1251 if (le16_to_cpu(rp->manufacturer) != 10) {
1252 /* Clear the reset quirk since this is not an actual
1253 * early Bluetooth 1.1 device from CSR.
1254 */
1255 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1256
1257 /* These fake CSR controllers have all a broken
1258 * stored link key handling and so just disable it.
1259 */
1260 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY,
1261 &hdev->quirks);
1262 }
1263 }
1264
1265 ret = -bt_to_errno(rp->status);
1266
1267 kfree_skb(skb);
1268
1269 return ret;
1270}
1271
dffd30ee
THJA		 1272struct intel_version {
1273 u8 status;
1274 u8 hw_platform;
1275 u8 hw_variant;
1276 u8 hw_revision;
1277 u8 fw_variant;
1278 u8 fw_revision;
1279 u8 fw_build_num;
1280 u8 fw_build_ww;
1281 u8 fw_build_yy;
1282 u8 fw_patch_num;
1283} __packed;
1284
1285static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
89e7533d 1286 struct intel_version *ver)
dffd30ee
THJA		 1287{
1288 const struct firmware *fw;
1289 char fwname[64];
1290 int ret;
1291
1292 snprintf(fwname, sizeof(fwname),
1293 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1294 ver->hw_platform, ver->hw_variant, ver->hw_revision,
1295 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
1296 ver->fw_build_ww, ver->fw_build_yy);
1297
1298 ret = request_firmware(&fw, fwname, &hdev->dev);
1299 if (ret < 0) {
1300 if (ret == -EINVAL) {
1301 BT_ERR("%s Intel firmware file request failed (%d)",
1302 hdev->name, ret);
1303 return NULL;
1304 }
1305
1306 BT_ERR("%s failed to open Intel firmware file: %s(%d)",
1307 hdev->name, fwname, ret);
1308
1309 /* If the correct firmware patch file is not found, use the
1310 * default firmware patch file instead
1311 */
1312 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1313 ver->hw_platform, ver->hw_variant);
1314 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1315 BT_ERR("%s failed to open default Intel fw file: %s",
1316 hdev->name, fwname);
1317 return NULL;
1318 }
1319 }
1320
1321 BT_INFO("%s: Intel Bluetooth firmware file: %s", hdev->name, fwname);
1322
1323 return fw;
1324}
1325
1326static int btusb_setup_intel_patching(struct hci_dev *hdev,
1327 const struct firmware *fw,
1328 const u8 **fw_ptr, int *disable_patch)
1329{
1330 struct sk_buff *skb;
1331 struct hci_command_hdr *cmd;
1332 const u8 *cmd_param;
1333 struct hci_event_hdr *evt = NULL;
1334 const u8 *evt_param = NULL;
1335 int remain = fw->size - (*fw_ptr - fw->data);
1336
1337 /* The first byte indicates the types of the patch command or event.
1338 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1339 * in the current firmware buffer doesn't start with 0x01 or
1340 * the size of remain buffer is smaller than HCI command header,
1341 * the firmware file is corrupted and it should stop the patching
1342 * process.
1343 */
1344 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1345 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name);
1346 return -EINVAL;
1347 }
1348 (*fw_ptr)++;
1349 remain--;
1350
1351 cmd = (struct hci_command_hdr *)(*fw_ptr);
1352 *fw_ptr += sizeof(*cmd);
1353 remain -= sizeof(*cmd);
1354
1355 /* Ensure that the remain firmware data is long enough than the length
1356 * of command parameter. If not, the firmware file is corrupted.
1357 */
1358 if (remain < cmd->plen) {
1359 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name);
1360 return -EFAULT;
1361 }
1362
1363 /* If there is a command that loads a patch in the firmware
1364 * file, then enable the patch upon success, otherwise just
1365 * disable the manufacturer mode, for example patch activation
1366 * is not required when the default firmware patch file is used
1367 * because there are no patch data to load.
1368 */
1369 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1370 *disable_patch = 0;
1371
1372 cmd_param = *fw_ptr;
1373 *fw_ptr += cmd->plen;
1374 remain -= cmd->plen;
1375
1376 /* This reads the expected events when the above command is sent to the
1377 * device. Some vendor commands expects more than one events, for
1378 * example command status event followed by vendor specific event.
1379 * For this case, it only keeps the last expected event. so the command
1380 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1381 * last expected event.
1382 */
1383 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1384 (*fw_ptr)++;
1385 remain--;
1386
1387 evt = (struct hci_event_hdr *)(*fw_ptr);
1388 *fw_ptr += sizeof(*evt);
1389 remain -= sizeof(*evt);
1390
1391 if (remain < evt->plen) {
1392 BT_ERR("%s Intel fw corrupted: invalid evt len",
1393 hdev->name);
1394 return -EFAULT;
1395 }
1396
1397 evt_param = *fw_ptr;
1398 *fw_ptr += evt->plen;
1399 remain -= evt->plen;
1400 }
1401
1402 /* Every HCI commands in the firmware file has its correspond event.
1403 * If event is not found or remain is smaller than zero, the firmware
1404 * file is corrupted.
1405 */
1406 if (!evt || !evt_param || remain < 0) {
1407 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name);
1408 return -EFAULT;
1409 }
1410
1411 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1412 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1413 if (IS_ERR(skb)) {
1414 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)",
1415 hdev->name, cmd->opcode, PTR_ERR(skb));
d9c78e97 1416 return PTR_ERR(skb);
dffd30ee
THJA		 1417 }
1418
1419 /* It ensures that the returned event matches the event data read from
1420 * the firmware file. At fist, it checks the length and then
1421 * the contents of the event.
1422 */
1423 if (skb->len != evt->plen) {
1424 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name,
1425 le16_to_cpu(cmd->opcode));
1426 kfree_skb(skb);
1427 return -EFAULT;
1428 }
1429
1430 if (memcmp(skb->data, evt_param, evt->plen)) {
1431 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)",
1432 hdev->name, le16_to_cpu(cmd->opcode));
1433 kfree_skb(skb);
1434 return -EFAULT;
1435 }
1436 kfree_skb(skb);
1437
1438 return 0;
1439}
1440
40cb0984
MH		 1441#define BDADDR_INTEL (&(bdaddr_t) {{0x00, 0x8b, 0x9e, 0x19, 0x03, 0x00}})
1442
1443static int btusb_check_bdaddr_intel(struct hci_dev *hdev)
1444{
1445 struct sk_buff *skb;
1446 struct hci_rp_read_bd_addr *rp;
1447
1448 skb = __hci_cmd_sync(hdev, HCI_OP_READ_BD_ADDR, 0, NULL,
1449 HCI_INIT_TIMEOUT);
1450 if (IS_ERR(skb)) {
1451 BT_ERR("%s reading Intel device address failed (%ld)",
1452 hdev->name, PTR_ERR(skb));
1453 return PTR_ERR(skb);
1454 }
1455
1456 if (skb->len != sizeof(*rp)) {
1457 BT_ERR("%s Intel device address length mismatch", hdev->name);
1458 kfree_skb(skb);
1459 return -EIO;
1460 }
1461
89e7533d 1462 rp = (struct hci_rp_read_bd_addr *)skb->data;
40cb0984
MH		 1463 if (rp->status) {
1464 BT_ERR("%s Intel device address result failed (%02x)",
1465 hdev->name, rp->status);
1466 kfree_skb(skb);
1467 return -bt_to_errno(rp->status);
1468 }
1469
1470 /* For some Intel based controllers, the default Bluetooth device
1471 * address 00:03:19:9E:8B:00 can be found. These controllers are
1472 * fully operational, but have the danger of duplicate addresses
1473 * and that in turn can cause problems with Bluetooth operation.
1474 */
4739b5b1 1475 if (!bacmp(&rp->bdaddr, BDADDR_INTEL)) {
40cb0984
MH		 1476 BT_ERR("%s found Intel default device address (%pMR)",
1477 hdev->name, &rp->bdaddr);
4739b5b1
MH		 1478 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
1479 }
40cb0984
MH		 1480
1481 kfree_skb(skb);
1482
1483 return 0;
1484}
1485
dffd30ee
THJA		 1486static int btusb_setup_intel(struct hci_dev *hdev)
1487{
1488 struct sk_buff *skb;
1489 const struct firmware *fw;
1490 const u8 *fw_ptr;
1491 int disable_patch;
1492 struct intel_version *ver;
1493
1494 const u8 mfg_enable[] = { 0x01, 0x00 };
1495 const u8 mfg_disable[] = { 0x00, 0x00 };
1496 const u8 mfg_reset_deactivate[] = { 0x00, 0x01 };
1497 const u8 mfg_reset_activate[] = { 0x00, 0x02 };
1498
1499 BT_DBG("%s", hdev->name);
1500
1501 /* The controller has a bug with the first HCI command sent to it
1502 * returning number of completed commands as zero. This would stall the
1503 * command processing in the Bluetooth core.
1504 *
1505 * As a workaround, send HCI Reset command first which will reset the
1506 * number of completed commands and allow normal command processing
1507 * from now on.
1508 */
1509 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1510 if (IS_ERR(skb)) {
1511 BT_ERR("%s sending initial HCI reset command failed (%ld)",
1512 hdev->name, PTR_ERR(skb));
d9c78e97 1513 return PTR_ERR(skb);
dffd30ee
THJA		 1514 }
1515 kfree_skb(skb);
1516
1517 /* Read Intel specific controller version first to allow selection of
1518 * which firmware file to load.
1519 *
1520 * The returned information are hardware variant and revision plus
1521 * firmware variant, revision and build number.
1522 */
1523 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
1524 if (IS_ERR(skb)) {
1525 BT_ERR("%s reading Intel fw version command failed (%ld)",
1526 hdev->name, PTR_ERR(skb));
d9c78e97 1527 return PTR_ERR(skb);
dffd30ee
THJA		 1528 }
1529
1530 if (skb->len != sizeof(*ver)) {
1531 BT_ERR("%s Intel version event length mismatch", hdev->name);
1532 kfree_skb(skb);
1533 return -EIO;
1534 }
1535
1536 ver = (struct intel_version *)skb->data;
1537 if (ver->status) {
1538 BT_ERR("%s Intel fw version event failed (%02x)", hdev->name,
1539 ver->status);
1540 kfree_skb(skb);
1541 return -bt_to_errno(ver->status);
1542 }
1543
1544 BT_INFO("%s: read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1545 hdev->name, ver->hw_platform, ver->hw_variant,
1546 ver->hw_revision, ver->fw_variant, ver->fw_revision,
1547 ver->fw_build_num, ver->fw_build_ww, ver->fw_build_yy,
1548 ver->fw_patch_num);
1549
1550 /* fw_patch_num indicates the version of patch the device currently
1551 * have. If there is no patch data in the device, it is always 0x00.
1552 * So, if it is other than 0x00, no need to patch the deivce again.
1553 */
1554 if (ver->fw_patch_num) {
1555 BT_INFO("%s: Intel device is already patched. patch num: %02x",
1556 hdev->name, ver->fw_patch_num);
1557 kfree_skb(skb);
40cb0984 1558 btusb_check_bdaddr_intel(hdev);
dffd30ee
THJA		 1559 return 0;
1560 }
1561
1562 /* Opens the firmware patch file based on the firmware version read
1563 * from the controller. If it fails to open the matching firmware
1564 * patch file, it tries to open the default firmware patch file.
1565 * If no patch file is found, allow the device to operate without
1566 * a patch.
1567 */
1568 fw = btusb_setup_intel_get_fw(hdev, ver);
1569 if (!fw) {
1570 kfree_skb(skb);
40cb0984 1571 btusb_check_bdaddr_intel(hdev);
dffd30ee
THJA		 1572 return 0;
1573 }
1574 fw_ptr = fw->data;
1575
1576 /* This Intel specific command enables the manufacturer mode of the
1577 * controller.
1578 *
1579 * Only while this mode is enabled, the driver can download the
1580 * firmware patch data and configuration parameters.
1581 */
1582 skb = __hci_cmd_sync(hdev, 0xfc11, 2, mfg_enable, HCI_INIT_TIMEOUT);
1583 if (IS_ERR(skb)) {
1584 BT_ERR("%s entering Intel manufacturer mode failed (%ld)",
1585 hdev->name, PTR_ERR(skb));
1586 release_firmware(fw);
d9c78e97 1587 return PTR_ERR(skb);
dffd30ee
THJA		 1588 }
1589
1590 if (skb->data[0]) {
1591 u8 evt_status = skb->data[0];
89e7533d 1592
dffd30ee
THJA		 1593 BT_ERR("%s enable Intel manufacturer mode event failed (%02x)",
1594 hdev->name, evt_status);
1595 kfree_skb(skb);
1596 release_firmware(fw);
1597 return -bt_to_errno(evt_status);
1598 }
1599 kfree_skb(skb);
1600
1601 disable_patch = 1;
1602
1603 /* The firmware data file consists of list of Intel specific HCI
1604 * commands and its expected events. The first byte indicates the
1605 * type of the message, either HCI command or HCI event.
1606 *
1607 * It reads the command and its expected event from the firmware file,
1608 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1609 * the returned event is compared with the event read from the firmware
1610 * file and it will continue until all the messages are downloaded to
1611 * the controller.
1612 *
1613 * Once the firmware patching is completed successfully,
1614 * the manufacturer mode is disabled with reset and activating the
1615 * downloaded patch.
1616 *
1617 * If the firmware patching fails, the manufacturer mode is
1618 * disabled with reset and deactivating the patch.
1619 *
1620 * If the default patch file is used, no reset is done when disabling
1621 * the manufacturer.
1622 */
1623 while (fw->size > fw_ptr - fw->data) {
1624 int ret;
1625
1626 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1627 &disable_patch);
1628 if (ret < 0)
1629 goto exit_mfg_deactivate;
1630 }
1631
1632 release_firmware(fw);
1633
1634 if (disable_patch)
1635 goto exit_mfg_disable;
1636
1637 /* Patching completed successfully and disable the manufacturer mode
1638 * with reset and activate the downloaded firmware patches.
1639 */
1640 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_activate),
1641 mfg_reset_activate, HCI_INIT_TIMEOUT);
1642 if (IS_ERR(skb)) {
1643 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1644 hdev->name, PTR_ERR(skb));
d9c78e97 1645 return PTR_ERR(skb);
dffd30ee
THJA		 1646 }
1647 kfree_skb(skb);
1648
1649 BT_INFO("%s: Intel Bluetooth firmware patch completed and activated",
1650 hdev->name);
1651
40cb0984 1652 btusb_check_bdaddr_intel(hdev);
dffd30ee
THJA		 1653 return 0;
1654
1655exit_mfg_disable:
1656 /* Disable the manufacturer mode without reset */
1657 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_disable), mfg_disable,
1658 HCI_INIT_TIMEOUT);
1659 if (IS_ERR(skb)) {
1660 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1661 hdev->name, PTR_ERR(skb));
d9c78e97 1662 return PTR_ERR(skb);
dffd30ee
THJA		 1663 }
1664 kfree_skb(skb);
1665
1666 BT_INFO("%s: Intel Bluetooth firmware patch completed", hdev->name);
40cb0984
MH		 1667
1668 btusb_check_bdaddr_intel(hdev);
dffd30ee
THJA		 1669 return 0;
1670
1671exit_mfg_deactivate:
1672 release_firmware(fw);
1673
1674 /* Patching failed. Disable the manufacturer mode with reset and
1675 * deactivate the downloaded firmware patches.
1676 */
1677 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_deactivate),
1678 mfg_reset_deactivate, HCI_INIT_TIMEOUT);
1679 if (IS_ERR(skb)) {
1680 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1681 hdev->name, PTR_ERR(skb));
d9c78e97 1682 return PTR_ERR(skb);
dffd30ee
THJA		 1683 }
1684 kfree_skb(skb);
1685
1686 BT_INFO("%s: Intel Bluetooth firmware patch completed and deactivated",
1687 hdev->name);
1688
40cb0984 1689 btusb_check_bdaddr_intel(hdev);
dffd30ee
THJA		 1690 return 0;
1691}
1692
cb8d6597
MH		 1693static int btusb_set_bdaddr_intel(struct hci_dev *hdev, const bdaddr_t *bdaddr)
1694{
1695 struct sk_buff *skb;
1696 long ret;
1697
1698 skb = __hci_cmd_sync(hdev, 0xfc31, 6, bdaddr, HCI_INIT_TIMEOUT);
1699 if (IS_ERR(skb)) {
1700 ret = PTR_ERR(skb);
1701 BT_ERR("%s: changing Intel device address failed (%ld)",
89e7533d 1702 hdev->name, ret);
cb8d6597
MH		 1703 return ret;
1704 }
1705 kfree_skb(skb);
1706
1707 return 0;
1708}
1709
ae8df494
AK		 1710static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
1711 const bdaddr_t *bdaddr)
1712{
1713 struct sk_buff *skb;
1714 u8 buf[8];
1715 long ret;
1716
1717 buf[0] = 0xfe;
1718 buf[1] = sizeof(bdaddr_t);
1719 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
1720
1721 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
1722 if (IS_ERR(skb)) {
1723 ret = PTR_ERR(skb);
1724 BT_ERR("%s: changing Marvell device address failed (%ld)",
1725 hdev->name, ret);
1726 return ret;
1727 }
1728 kfree_skb(skb);
1729
1730 return 0;
1731}
1732
c8abb73f
MH		 1733#define BDADDR_BCM20702A0 (&(bdaddr_t) {{0x00, 0xa0, 0x02, 0x70, 0x20, 0x00}})
1734
10d4c673
PG		 1735static int btusb_setup_bcm_patchram(struct hci_dev *hdev)
1736{
1737 struct btusb_data *data = hci_get_drvdata(hdev);
1738 struct usb_device *udev = data->udev;
1739 char fw_name[64];
1740 const struct firmware *fw;
1741 const u8 *fw_ptr;
1742 size_t fw_size;
1743 const struct hci_command_hdr *cmd;
1744 const u8 *cmd_param;
1745 u16 opcode;
1746 struct sk_buff *skb;
1747 struct hci_rp_read_local_version *ver;
c8abb73f 1748 struct hci_rp_read_bd_addr *bda;
10d4c673
PG		 1749 long ret;
1750
1751 snprintf(fw_name, sizeof(fw_name), "brcm/%s-%04x-%04x.hcd",
1752 udev->product ? udev->product : "BCM",
1753 le16_to_cpu(udev->descriptor.idVendor),
1754 le16_to_cpu(udev->descriptor.idProduct));
1755
1756 ret = request_firmware(&fw, fw_name, &hdev->dev);
1757 if (ret < 0) {
c8abb73f 1758 BT_INFO("%s: BCM: patch %s not found", hdev->name, fw_name);
10d4c673
PG		 1759 return 0;
1760 }
1761
1762 /* Reset */
1763 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1764 if (IS_ERR(skb)) {
1765 ret = PTR_ERR(skb);
1766 BT_ERR("%s: HCI_OP_RESET failed (%ld)", hdev->name, ret);
1767 goto done;
1768 }
1769 kfree_skb(skb);
1770
1771 /* Read Local Version Info */
1772 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1773 HCI_INIT_TIMEOUT);
1774 if (IS_ERR(skb)) {
1775 ret = PTR_ERR(skb);
1776 BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION failed (%ld)",
89e7533d 1777 hdev->name, ret);
10d4c673
PG		 1778 goto done;
1779 }
1780
1781 if (skb->len != sizeof(*ver)) {
1782 BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION event length mismatch",
89e7533d 1783 hdev->name);
10d4c673
PG		 1784 kfree_skb(skb);
1785 ret = -EIO;
1786 goto done;
1787 }
1788
89e7533d 1789 ver = (struct hci_rp_read_local_version *)skb->data;
10d4c673
PG		 1790 BT_INFO("%s: BCM: patching hci_ver=%02x hci_rev=%04x lmp_ver=%02x "
1791 "lmp_subver=%04x", hdev->name, ver->hci_ver, ver->hci_rev,
1792 ver->lmp_ver, ver->lmp_subver);
1793 kfree_skb(skb);
1794
1795 /* Start Download */
1796 skb = __hci_cmd_sync(hdev, 0xfc2e, 0, NULL, HCI_INIT_TIMEOUT);
1797 if (IS_ERR(skb)) {
1798 ret = PTR_ERR(skb);
1799 BT_ERR("%s: BCM: Download Minidrv command failed (%ld)",
89e7533d 1800 hdev->name, ret);
10d4c673
PG		 1801 goto reset_fw;
1802 }
1803 kfree_skb(skb);
1804
1805 /* 50 msec delay after Download Minidrv completes */
1806 msleep(50);
1807
1808 fw_ptr = fw->data;
1809 fw_size = fw->size;
1810
1811 while (fw_size >= sizeof(*cmd)) {
89e7533d 1812 cmd = (struct hci_command_hdr *)fw_ptr;
10d4c673
PG		 1813 fw_ptr += sizeof(*cmd);
1814 fw_size -= sizeof(*cmd);
1815
1816 if (fw_size < cmd->plen) {
1817 BT_ERR("%s: BCM: patch %s is corrupted",
89e7533d 1818 hdev->name, fw_name);
10d4c673
PG		 1819 ret = -EINVAL;
1820 goto reset_fw;
1821 }
1822
1823 cmd_param = fw_ptr;
1824 fw_ptr += cmd->plen;
1825 fw_size -= cmd->plen;
1826
1827 opcode = le16_to_cpu(cmd->opcode);
1828
1829 skb = __hci_cmd_sync(hdev, opcode, cmd->plen, cmd_param,
1830 HCI_INIT_TIMEOUT);
1831 if (IS_ERR(skb)) {
1832 ret = PTR_ERR(skb);
1833 BT_ERR("%s: BCM: patch command %04x failed (%ld)",
89e7533d 1834 hdev->name, opcode, ret);
10d4c673
PG		 1835 goto reset_fw;
1836 }
1837 kfree_skb(skb);
1838 }
1839
1840 /* 250 msec delay after Launch Ram completes */
1841 msleep(250);
1842
1843reset_fw:
1844 /* Reset */
1845 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1846 if (IS_ERR(skb)) {
1847 ret = PTR_ERR(skb);
1848 BT_ERR("%s: HCI_OP_RESET failed (%ld)", hdev->name, ret);
1849 goto done;
1850 }
1851 kfree_skb(skb);
1852
1853 /* Read Local Version Info */
1854 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1855 HCI_INIT_TIMEOUT);
1856 if (IS_ERR(skb)) {
1857 ret = PTR_ERR(skb);
1858 BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION failed (%ld)",
89e7533d 1859 hdev->name, ret);
10d4c673
PG		 1860 goto done;
1861 }
1862
1863 if (skb->len != sizeof(*ver)) {
1864 BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION event length mismatch",
89e7533d 1865 hdev->name);
10d4c673
PG		 1866 kfree_skb(skb);
1867 ret = -EIO;
1868 goto done;
1869 }
1870
89e7533d 1871 ver = (struct hci_rp_read_local_version *)skb->data;
10d4c673
PG		 1872 BT_INFO("%s: BCM: firmware hci_ver=%02x hci_rev=%04x lmp_ver=%02x "
1873 "lmp_subver=%04x", hdev->name, ver->hci_ver, ver->hci_rev,
1874 ver->lmp_ver, ver->lmp_subver);
1875 kfree_skb(skb);
1876
c8abb73f
MH		 1877 /* Read BD Address */
1878 skb = __hci_cmd_sync(hdev, HCI_OP_READ_BD_ADDR, 0, NULL,
1879 HCI_INIT_TIMEOUT);
1880 if (IS_ERR(skb)) {
1881 ret = PTR_ERR(skb);
1882 BT_ERR("%s: HCI_OP_READ_BD_ADDR failed (%ld)",
89e7533d 1883 hdev->name, ret);
c8abb73f
MH		 1884 goto done;
1885 }
1886
1887 if (skb->len != sizeof(*bda)) {
1888 BT_ERR("%s: HCI_OP_READ_BD_ADDR event length mismatch",
89e7533d 1889 hdev->name);
c8abb73f
MH		 1890 kfree_skb(skb);
1891 ret = -EIO;
1892 goto done;
1893 }
1894
89e7533d 1895 bda = (struct hci_rp_read_bd_addr *)skb->data;
c8abb73f
MH		 1896 if (bda->status) {
1897 BT_ERR("%s: HCI_OP_READ_BD_ADDR error status (%02x)",
1898 hdev->name, bda->status);
1899 kfree_skb(skb);
1900 ret = -bt_to_errno(bda->status);
1901 goto done;
1902 }
1903
1904 /* The address 00:20:70:02:A0:00 indicates a BCM20702A0 controller
1905 * with no configured address.
1906 */
849e5086 1907 if (!bacmp(&bda->bdaddr, BDADDR_BCM20702A0)) {
c8abb73f
MH		 1908 BT_INFO("%s: BCM: using default device address (%pMR)",
1909 hdev->name, &bda->bdaddr);
849e5086
MH		 1910 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
1911 }
c8abb73f
MH		 1912
1913 kfree_skb(skb);
1914
10d4c673
PG		 1915done:
1916 release_firmware(fw);
1917
1918 return ret;
1919}
1920
abbaf50e
MH		 1921static int btusb_set_bdaddr_bcm(struct hci_dev *hdev, const bdaddr_t *bdaddr)
1922{
1923 struct sk_buff *skb;
1924 long ret;
1925
1926 skb = __hci_cmd_sync(hdev, 0xfc01, 6, bdaddr, HCI_INIT_TIMEOUT);
1927 if (IS_ERR(skb)) {
1928 ret = PTR_ERR(skb);
1929 BT_ERR("%s: BCM: Change address command failed (%ld)",
89e7533d 1930 hdev->name, ret);
abbaf50e
MH		 1931 return ret;
1932 }
1933 kfree_skb(skb);
1934
1935 return 0;
1936}
1937
5e23b923 1938static int btusb_probe(struct usb_interface *intf,
89e7533d 1939 const struct usb_device_id *id)
5e23b923
MH		 1940{
1941 struct usb_endpoint_descriptor *ep_desc;
1942 struct btusb_data *data;
1943 struct hci_dev *hdev;
1944 int i, err;
1945
1946 BT_DBG("intf %p id %p", intf, id);
1947
cfeb4145 1948 /* interface numbers are hardcoded in the spec */
5e23b923
MH		 1949 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
1950 return -ENODEV;
1951
1952 if (!id->driver_info) {
1953 const struct usb_device_id *match;
89e7533d 1954
5e23b923
MH		 1955 match = usb_match_id(intf, blacklist_table);
1956 if (match)
1957 id = match;
1958 }
1959
cfeb4145
MH		 1960 if (id->driver_info == BTUSB_IGNORE)
1961 return -ENODEV;
1962
2d25f8b4
SL		 1963 if (id->driver_info & BTUSB_ATH3012) {
1964 struct usb_device *udev = interface_to_usbdev(intf);
1965
1966 /* Old firmware would otherwise let ath3k driver load
1967 * patch and sysconfig files */
1968 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
1969 return -ENODEV;
1970 }
1971
98921dbd 1972 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
5e23b923
MH		 1973 if (!data)
1974 return -ENOMEM;
1975
1976 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1977 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1978
1979 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
1980 data->intr_ep = ep_desc;
1981 continue;
1982 }
1983
1984 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
1985 data->bulk_tx_ep = ep_desc;
1986 continue;
1987 }
1988
1989 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
1990 data->bulk_rx_ep = ep_desc;
1991 continue;
1992 }
1993 }
1994
98921dbd 1995 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
5e23b923 1996 return -ENODEV;
5e23b923 1997
7a9d4020
MH		 1998 data->cmdreq_type = USB_TYPE_CLASS;
1999
5e23b923 2000 data->udev = interface_to_usbdev(intf);
5fbcd260 2001 data->intf = intf;
5e23b923 2002
5e23b923 2003 INIT_WORK(&data->work, btusb_work);
7bee549e 2004 INIT_WORK(&data->waker, btusb_waker);
803b5836
MH		 2005 init_usb_anchor(&data->deferred);
2006 init_usb_anchor(&data->tx_anchor);
7bee549e 2007 spin_lock_init(&data->txlock);
5e23b923 2008
5e23b923
MH		 2009 init_usb_anchor(&data->intr_anchor);
2010 init_usb_anchor(&data->bulk_anchor);
9bfa35fe 2011 init_usb_anchor(&data->isoc_anchor);
803b5836 2012 spin_lock_init(&data->rxlock);
5e23b923
MH		 2013
2014 hdev = hci_alloc_dev();
98921dbd 2015 if (!hdev)
5e23b923 2016 return -ENOMEM;
5e23b923 2017
c13854ce 2018 hdev->bus = HCI_USB;
155961e8 2019 hci_set_drvdata(hdev, data);
5e23b923
MH		 2020
2021 data->hdev = hdev;
2022
2023 SET_HCIDEV_DEV(hdev, &intf->dev);
2024
9f8f962c
MH		 2025 hdev->open = btusb_open;
2026 hdev->close = btusb_close;
2027 hdev->flush = btusb_flush;
2028 hdev->send = btusb_send_frame;
2029 hdev->notify = btusb_notify;
2030
2031 if (id->driver_info & BTUSB_BCM92035)
2032 hdev->setup = btusb_setup_bcm92035;
5e23b923 2033
abbaf50e 2034 if (id->driver_info & BTUSB_BCM_PATCHRAM) {
10d4c673 2035 hdev->setup = btusb_setup_bcm_patchram;
abbaf50e
MH		 2036 hdev->set_bdaddr = btusb_set_bdaddr_bcm;
2037 }
10d4c673 2038
cb8d6597 2039 if (id->driver_info & BTUSB_INTEL) {
dffd30ee 2040 hdev->setup = btusb_setup_intel;
cb8d6597
MH		 2041 hdev->set_bdaddr = btusb_set_bdaddr_intel;
2042 }
dffd30ee 2043
ae8df494
AK		 2044 if (id->driver_info & BTUSB_MARVELL)
2045 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
2046
40df783d
MH		 2047 if (id->driver_info & BTUSB_INTEL_BOOT)
2048 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
2049
7a9d4020 2050 /* Interface numbers are hardcoded in the specification */
9bfa35fe
MH		 2051 data->isoc = usb_ifnum_to_if(data->udev, 1);
2052
7a9d4020 2053 if (!reset)
a6c511c6 2054 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
cfeb4145
MH		 2055
2056 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
2057 if (!disable_scofix)
2058 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
2059 }
2060
9bfa35fe
MH		 2061 if (id->driver_info & BTUSB_BROKEN_ISOC)
2062 data->isoc = NULL;
2063
7a9d4020
MH		 2064 if (id->driver_info & BTUSB_DIGIANSWER) {
2065 data->cmdreq_type = USB_TYPE_VENDOR;
a6c511c6 2066 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
7a9d4020
MH		 2067 }
2068
2069 if (id->driver_info & BTUSB_CSR) {
2070 struct usb_device *udev = data->udev;
81cac64b 2071 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
7a9d4020
MH		 2072
2073 /* Old firmware would otherwise execute USB reset */
81cac64b 2074 if (bcdDevice < 0x117)
a6c511c6 2075 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
81cac64b
MH		 2076
2077 /* Fake CSR devices with broken commands */
2078 if (bcdDevice <= 0x100)
2079 hdev->setup = btusb_setup_csr;
7a9d4020
MH		 2080 }
2081
cfeb4145 2082 if (id->driver_info & BTUSB_SNIFFER) {
9bfa35fe 2083 struct usb_device *udev = data->udev;
cfeb4145 2084
7a9d4020 2085 /* New sniffer firmware has crippled HCI interface */
cfeb4145
MH		 2086 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
2087 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
2088 }
2089
3a5ef20c
MH		 2090 if (id->driver_info & BTUSB_INTEL_BOOT) {
2091 /* A bug in the bootloader causes that interrupt interface is
2092 * only enabled after receiving SetInterface(0, AltSetting=0).
2093 */
2094 err = usb_set_interface(data->udev, 0, 0);
2095 if (err < 0) {
2096 BT_ERR("failed to set interface 0, alt 0 %d", err);
2097 hci_free_dev(hdev);
2098 return err;
2099 }
2100 }
2101
9bfa35fe
MH		 2102 if (data->isoc) {
2103 err = usb_driver_claim_interface(&btusb_driver,
89e7533d 2104 data->isoc, data);
9bfa35fe
MH		 2105 if (err < 0) {
2106 hci_free_dev(hdev);
9bfa35fe
MH		 2107 return err;
2108 }
2109 }
2110
5e23b923
MH		 2111 err = hci_register_dev(hdev);
2112 if (err < 0) {
2113 hci_free_dev(hdev);
5e23b923
MH		 2114 return err;
2115 }
2116
2117 usb_set_intfdata(intf, data);
2118
2119 return 0;
2120}
2121
2122static void btusb_disconnect(struct usb_interface *intf)
2123{
2124 struct btusb_data *data = usb_get_intfdata(intf);
2125 struct hci_dev *hdev;
2126
2127 BT_DBG("intf %p", intf);
2128
2129 if (!data)
2130 return;
2131
2132 hdev = data->hdev;
5fbcd260
MH		 2133 usb_set_intfdata(data->intf, NULL);
2134
2135 if (data->isoc)
2136 usb_set_intfdata(data->isoc, NULL);
5e23b923
MH		 2137
2138 hci_unregister_dev(hdev);
2139
5fbcd260
MH		 2140 if (intf == data->isoc)
2141 usb_driver_release_interface(&btusb_driver, data->intf);
2142 else if (data->isoc)
2143 usb_driver_release_interface(&btusb_driver, data->isoc);
2144
803b5836 2145 btusb_free_frags(data);
5e23b923
MH		 2146 hci_free_dev(hdev);
2147}
2148
7bee549e 2149#ifdef CONFIG_PM
6a88adf2
MH		 2150static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
2151{
2152 struct btusb_data *data = usb_get_intfdata(intf);
2153
2154 BT_DBG("intf %p", intf);
2155
2156 if (data->suspend_count++)
2157 return 0;
2158
7bee549e 2159 spin_lock_irq(&data->txlock);
5b1b0b81 2160 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
7bee549e
ON		 2161 set_bit(BTUSB_SUSPENDING, &data->flags);
2162 spin_unlock_irq(&data->txlock);
2163 } else {
2164 spin_unlock_irq(&data->txlock);
2165 data->suspend_count--;
2166 return -EBUSY;
2167 }
2168
6a88adf2
MH		 2169 cancel_work_sync(&data->work);
2170
7bee549e 2171 btusb_stop_traffic(data);
6a88adf2
MH		 2172 usb_kill_anchored_urbs(&data->tx_anchor);
2173
6a88adf2
MH		 2174 return 0;
2175}
2176
7bee549e
ON		 2177static void play_deferred(struct btusb_data *data)
2178{
2179 struct urb *urb;
2180 int err;
2181
2182 while ((urb = usb_get_from_anchor(&data->deferred))) {
2183 err = usb_submit_urb(urb, GFP_ATOMIC);
2184 if (err < 0)
2185 break;
2186
2187 data->tx_in_flight++;
2188 }
2189 usb_scuttle_anchored_urbs(&data->deferred);
2190}
2191
6a88adf2
MH		 2192static int btusb_resume(struct usb_interface *intf)
2193{
2194 struct btusb_data *data = usb_get_intfdata(intf);
2195 struct hci_dev *hdev = data->hdev;
7bee549e 2196 int err = 0;
6a88adf2
MH		 2197
2198 BT_DBG("intf %p", intf);
2199
2200 if (--data->suspend_count)
2201 return 0;
2202
2203 if (!test_bit(HCI_RUNNING, &hdev->flags))
7bee549e 2204 goto done;
6a88adf2
MH		 2205
2206 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
2207 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
2208 if (err < 0) {
2209 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
7bee549e 2210 goto failed;
6a88adf2
MH		 2211 }
2212 }
2213
2214 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
43c2e57f
MH		 2215 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
2216 if (err < 0) {
6a88adf2 2217 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
7bee549e
ON		 2218 goto failed;
2219 }
2220
2221 btusb_submit_bulk_urb(hdev, GFP_NOIO);
6a88adf2
MH		 2222 }
2223
2224 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2225 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
2226 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2227 else
2228 btusb_submit_isoc_urb(hdev, GFP_NOIO);
2229 }
2230
7bee549e
ON		 2231 spin_lock_irq(&data->txlock);
2232 play_deferred(data);
2233 clear_bit(BTUSB_SUSPENDING, &data->flags);
2234 spin_unlock_irq(&data->txlock);
2235 schedule_work(&data->work);
2236
6a88adf2 2237 return 0;
7bee549e
ON		 2238
2239failed:
2240 usb_scuttle_anchored_urbs(&data->deferred);
2241done:
2242 spin_lock_irq(&data->txlock);
2243 clear_bit(BTUSB_SUSPENDING, &data->flags);
2244 spin_unlock_irq(&data->txlock);
2245
2246 return err;
6a88adf2 2247}
7bee549e 2248#endif
6a88adf2 2249
5e23b923
MH		 2250static struct usb_driver btusb_driver = {
2251 .name = "btusb",
2252 .probe = btusb_probe,
2253 .disconnect = btusb_disconnect,
7bee549e 2254#ifdef CONFIG_PM
6a88adf2
MH		 2255 .suspend = btusb_suspend,
2256 .resume = btusb_resume,
7bee549e 2257#endif
5e23b923 2258 .id_table = btusb_table,
7bee549e 2259 .supports_autosuspend = 1,
e1f12eb6 2260 .disable_hub_initiated_lpm = 1,
5e23b923
MH		 2261};
2262
93f1508c 2263module_usb_driver(btusb_driver);
5e23b923 2264
cfeb4145
MH		 2265module_param(disable_scofix, bool, 0644);
2266MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
2267
2268module_param(force_scofix, bool, 0644);
2269MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
2270
2271module_param(reset, bool, 0644);
2272MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
2273
5e23b923
MH		 2274MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
2275MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
2276MODULE_VERSION(VERSION);
2277MODULE_LICENSE("GPL");
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git