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Bluetooth: allocate static minor for vhci
[linux-block.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 ignore_dga;
34static bool ignore_csr;
35static bool ignore_sniffer;
36static bool disable_scofix;
37static bool force_scofix;
7a9d4020 38
90ab5ee9 39static bool reset = 1;
cfeb4145
MH		 40
41static struct usb_driver btusb_driver;
42
43#define BTUSB_IGNORE 0x01
7a9d4020
MH		 44#define BTUSB_DIGIANSWER 0x02
45#define BTUSB_CSR 0x04
46#define BTUSB_SNIFFER 0x08
47#define BTUSB_BCM92035 0x10
48#define BTUSB_BROKEN_ISOC 0x20
49#define BTUSB_WRONG_SCO_MTU 0x40
2d25f8b4 50#define BTUSB_ATH3012 0x80
dffd30ee 51#define BTUSB_INTEL 0x100
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 */
1ee3ff61 104 { USB_DEVICE(0x0b05, 0x17b5) },
38a172be 105 { USB_DEVICE(0x0b05, 0x17cb) },
0c1abbd1 106 { USB_DEVICE(0x04ca, 0x2003) },
79cd7602 107 { USB_DEVICE(0x0489, 0xe042) },
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
92c385f4
GP		 113 /*Broadcom devices with vendor specific id */
114 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01) },
115
5bcecf32
KB		 116 /* Belkin F8065bf - Broadcom based */
117 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01) },
118
9113bfd8
JK		 119 /* IMC Networks - Broadcom based */
120 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01) },
121
5e23b923
MH		 122 { } /* Terminating entry */
123};
124
125MODULE_DEVICE_TABLE(usb, btusb_table);
126
54265202 127static const struct usb_device_id blacklist_table[] = {
cfeb4145
MH		 128 /* CSR BlueCore devices */
129 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
130
131 /* Broadcom BCM2033 without firmware */
132 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
133
be93112a
BS		 134 /* Atheros 3011 with sflash firmware */
135 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
6eda541d 136 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
2a7bcccc 137 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
8e7c3d2e 138 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
6b6ba88b 139 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
acd94544 140 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
be93112a 141
509e7861
CYC		 142 /* Atheros AR9285 Malbec with sflash firmware */
143 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
144
d9f51b51 145 /* Atheros 3012 with sflash firmware */
d66629c1 146 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
2d25f8b4 147 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
94a32d10 148 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
07c0ea87 149 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
b131237c 150 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
1e56f1eb 151 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
ebaf5795 152 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
9498ba7a 153 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
3f63c340 154 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
55ed7d4d 155 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
2c262b2a 156 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
f4d6f7dc 157 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
bd0fca1b 158 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
87522a43 159 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
ac71311e 160 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
0a3658cc 161 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
6c4ae5c2 162 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
bd0976dd 163 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
2096ae6c 164 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
eed307e2 165 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
3a61eda8 166 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
2582d529 167 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
0fc110f4 168 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
84eb2ae1 169 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
5b77a1f3 170 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
1ebd0b21 171 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
1d5b569e 172 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
35580d22 173 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
d9f51b51 174
e9036e33
CYC		 175 /* Atheros AR5BBU12 with sflash firmware */
176 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
177
85d59726
MG		 178 /* Atheros AR5BBU12 with sflash firmware */
179 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
bc21fde2 180 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
85d59726 181
cfeb4145 182 /* Broadcom BCM2035 */
7a9d4020
MH		 183 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
184 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
185 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
cfeb4145
MH		 186
187 /* Broadcom BCM2045 */
7a9d4020
MH		 188 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
189 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
bdbef3d6 190
cfeb4145 191 /* IBM/Lenovo ThinkPad with Broadcom chip */
7a9d4020
MH		 192 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
193 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 194
195 /* HP laptop with Broadcom chip */
7a9d4020 196 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 197
198 /* Dell laptop with Broadcom chip */
7a9d4020 199 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 200
5ddd4a60 201 /* Dell Wireless 370 and 410 devices */
7a9d4020 202 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
5ddd4a60 203 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 204
7a9d4020
MH		 205 /* Belkin F8T012 and F8T013 devices */
206 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
207 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 208
5ddd4a60
MH		 209 /* Asus WL-BTD202 device */
210 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
211
212 /* Kensington Bluetooth USB adapter */
213 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
214
cfeb4145
MH		 215 /* RTX Telecom based adapters with buggy SCO support */
216 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
217 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
218
219 /* CONWISE Technology based adapters with buggy SCO support */
220 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
221
cfeb4145
MH		 222 /* Digianswer devices */
223 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
224 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
225
226 /* CSR BlueCore Bluetooth Sniffer */
227 { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
228
229 /* Frontline ComProbe Bluetooth Sniffer */
230 { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
231
dffd30ee
THJA		 232 /* Intel Bluetooth device */
233 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
ef4e5e4a 234 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL },
dffd30ee 235
5e23b923
MH		 236 { } /* Terminating entry */
237};
238
9bfa35fe
MH		 239#define BTUSB_MAX_ISOC_FRAMES 10
240
5e23b923
MH		 241#define BTUSB_INTR_RUNNING 0
242#define BTUSB_BULK_RUNNING 1
9bfa35fe 243#define BTUSB_ISOC_RUNNING 2
7bee549e 244#define BTUSB_SUSPENDING 3
08b8b6c4 245#define BTUSB_DID_ISO_RESUME 4
5e23b923
MH		 246
247struct btusb_data {
248 struct hci_dev *hdev;
249 struct usb_device *udev;
5fbcd260 250 struct usb_interface *intf;
9bfa35fe 251 struct usb_interface *isoc;
5e23b923
MH		 252
253 spinlock_t lock;
254
255 unsigned long flags;
256
257 struct work_struct work;
7bee549e 258 struct work_struct waker;
5e23b923
MH		 259
260 struct usb_anchor tx_anchor;
261 struct usb_anchor intr_anchor;
262 struct usb_anchor bulk_anchor;
9bfa35fe 263 struct usb_anchor isoc_anchor;
7bee549e
ON		 264 struct usb_anchor deferred;
265 int tx_in_flight;
266 spinlock_t txlock;
5e23b923
MH		 267
268 struct usb_endpoint_descriptor *intr_ep;
269 struct usb_endpoint_descriptor *bulk_tx_ep;
270 struct usb_endpoint_descriptor *bulk_rx_ep;
9bfa35fe
MH		 271 struct usb_endpoint_descriptor *isoc_tx_ep;
272 struct usb_endpoint_descriptor *isoc_rx_ep;
273
7a9d4020
MH		 274 __u8 cmdreq_type;
275
43c2e57f 276 unsigned int sco_num;
9bfa35fe 277 int isoc_altsetting;
6a88adf2 278 int suspend_count;
5e23b923
MH		 279};
280
7bee549e
ON		 281static int inc_tx(struct btusb_data *data)
282{
283 unsigned long flags;
284 int rv;
285
286 spin_lock_irqsave(&data->txlock, flags);
287 rv = test_bit(BTUSB_SUSPENDING, &data->flags);
288 if (!rv)
289 data->tx_in_flight++;
290 spin_unlock_irqrestore(&data->txlock, flags);
291
292 return rv;
293}
294
5e23b923
MH		 295static void btusb_intr_complete(struct urb *urb)
296{
297 struct hci_dev *hdev = urb->context;
155961e8 298 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 299 int err;
300
301 BT_DBG("%s urb %p status %d count %d", hdev->name,
302 urb, urb->status, urb->actual_length);
303
304 if (!test_bit(HCI_RUNNING, &hdev->flags))
305 return;
306
307 if (urb->status == 0) {
9bfa35fe
MH		 308 hdev->stat.byte_rx += urb->actual_length;
309
5e23b923
MH		 310 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
311 urb->transfer_buffer,
312 urb->actual_length) < 0) {
313 BT_ERR("%s corrupted event packet", hdev->name);
314 hdev->stat.err_rx++;
315 }
316 }
317
318 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
319 return;
320
7bee549e 321 usb_mark_last_busy(data->udev);
5e23b923
MH		 322 usb_anchor_urb(urb, &data->intr_anchor);
323
324 err = usb_submit_urb(urb, GFP_ATOMIC);
325 if (err < 0) {
4935f1c1
PB		 326 /* -EPERM: urb is being killed;
327 * -ENODEV: device got disconnected */
328 if (err != -EPERM && err != -ENODEV)
61faddf6 329 BT_ERR("%s urb %p failed to resubmit (%d)",
5e23b923
MH		 330 hdev->name, urb, -err);
331 usb_unanchor_urb(urb);
332 }
333}
334
2eda66f4 335static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
5e23b923 336{
155961e8 337 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 338 struct urb *urb;
339 unsigned char *buf;
340 unsigned int pipe;
341 int err, size;
342
343 BT_DBG("%s", hdev->name);
344
9bfa35fe
MH		 345 if (!data->intr_ep)
346 return -ENODEV;
347
2eda66f4 348 urb = usb_alloc_urb(0, mem_flags);
5e23b923
MH		 349 if (!urb)
350 return -ENOMEM;
351
352 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
353
2eda66f4 354 buf = kmalloc(size, mem_flags);
5e23b923
MH		 355 if (!buf) {
356 usb_free_urb(urb);
357 return -ENOMEM;
358 }
359
360 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
361
362 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
363 btusb_intr_complete, hdev,
364 data->intr_ep->bInterval);
365
366 urb->transfer_flags |= URB_FREE_BUFFER;
367
368 usb_anchor_urb(urb, &data->intr_anchor);
369
2eda66f4 370 err = usb_submit_urb(urb, mem_flags);
5e23b923 371 if (err < 0) {
d4b8d1c9
PB		 372 if (err != -EPERM && err != -ENODEV)
373 BT_ERR("%s urb %p submission failed (%d)",
5e23b923
MH		 374 hdev->name, urb, -err);
375 usb_unanchor_urb(urb);
5e23b923
MH		 376 }
377
378 usb_free_urb(urb);
379
380 return err;
381}
382
383static void btusb_bulk_complete(struct urb *urb)
384{
385 struct hci_dev *hdev = urb->context;
155961e8 386 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 387 int err;
388
389 BT_DBG("%s urb %p status %d count %d", hdev->name,
390 urb, urb->status, urb->actual_length);
391
392 if (!test_bit(HCI_RUNNING, &hdev->flags))
393 return;
394
395 if (urb->status == 0) {
9bfa35fe
MH		 396 hdev->stat.byte_rx += urb->actual_length;
397
5e23b923
MH		 398 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
399 urb->transfer_buffer,
400 urb->actual_length) < 0) {
401 BT_ERR("%s corrupted ACL packet", hdev->name);
402 hdev->stat.err_rx++;
403 }
404 }
405
406 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
407 return;
408
409 usb_anchor_urb(urb, &data->bulk_anchor);
652fd781 410 usb_mark_last_busy(data->udev);
5e23b923
MH		 411
412 err = usb_submit_urb(urb, GFP_ATOMIC);
413 if (err < 0) {
4935f1c1
PB		 414 /* -EPERM: urb is being killed;
415 * -ENODEV: device got disconnected */
416 if (err != -EPERM && err != -ENODEV)
61faddf6 417 BT_ERR("%s urb %p failed to resubmit (%d)",
5e23b923
MH		 418 hdev->name, urb, -err);
419 usb_unanchor_urb(urb);
420 }
421}
422
2eda66f4 423static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
5e23b923 424{
155961e8 425 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 426 struct urb *urb;
427 unsigned char *buf;
428 unsigned int pipe;
290ba200 429 int err, size = HCI_MAX_FRAME_SIZE;
5e23b923
MH		 430
431 BT_DBG("%s", hdev->name);
432
9bfa35fe
MH		 433 if (!data->bulk_rx_ep)
434 return -ENODEV;
435
2eda66f4 436 urb = usb_alloc_urb(0, mem_flags);
5e23b923
MH		 437 if (!urb)
438 return -ENOMEM;
439
2eda66f4 440 buf = kmalloc(size, mem_flags);
5e23b923
MH		 441 if (!buf) {
442 usb_free_urb(urb);
443 return -ENOMEM;
444 }
445
446 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
447
448 usb_fill_bulk_urb(urb, data->udev, pipe,
449 buf, size, btusb_bulk_complete, hdev);
450
451 urb->transfer_flags |= URB_FREE_BUFFER;
452
7bee549e 453 usb_mark_last_busy(data->udev);
5e23b923
MH		 454 usb_anchor_urb(urb, &data->bulk_anchor);
455
2eda66f4 456 err = usb_submit_urb(urb, mem_flags);
5e23b923 457 if (err < 0) {
d4b8d1c9
PB		 458 if (err != -EPERM && err != -ENODEV)
459 BT_ERR("%s urb %p submission failed (%d)",
5e23b923
MH		 460 hdev->name, urb, -err);
461 usb_unanchor_urb(urb);
5e23b923
MH		 462 }
463
464 usb_free_urb(urb);
465
466 return err;
467}
468
9bfa35fe
MH		 469static void btusb_isoc_complete(struct urb *urb)
470{
471 struct hci_dev *hdev = urb->context;
155961e8 472 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 473 int i, err;
474
475 BT_DBG("%s urb %p status %d count %d", hdev->name,
476 urb, urb->status, urb->actual_length);
477
478 if (!test_bit(HCI_RUNNING, &hdev->flags))
479 return;
480
481 if (urb->status == 0) {
482 for (i = 0; i < urb->number_of_packets; i++) {
483 unsigned int offset = urb->iso_frame_desc[i].offset;
484 unsigned int length = urb->iso_frame_desc[i].actual_length;
485
486 if (urb->iso_frame_desc[i].status)
487 continue;
488
489 hdev->stat.byte_rx += length;
490
491 if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
492 urb->transfer_buffer + offset,
493 length) < 0) {
494 BT_ERR("%s corrupted SCO packet", hdev->name);
495 hdev->stat.err_rx++;
496 }
497 }
498 }
499
500 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
501 return;
502
503 usb_anchor_urb(urb, &data->isoc_anchor);
504
505 err = usb_submit_urb(urb, GFP_ATOMIC);
506 if (err < 0) {
4935f1c1
PB		 507 /* -EPERM: urb is being killed;
508 * -ENODEV: device got disconnected */
509 if (err != -EPERM && err != -ENODEV)
61faddf6 510 BT_ERR("%s urb %p failed to resubmit (%d)",
9bfa35fe
MH		 511 hdev->name, urb, -err);
512 usb_unanchor_urb(urb);
513 }
514}
515
42b16b3f 516static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
9bfa35fe
MH		 517{
518 int i, offset = 0;
519
520 BT_DBG("len %d mtu %d", len, mtu);
521
522 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
523 i++, offset += mtu, len -= mtu) {
524 urb->iso_frame_desc[i].offset = offset;
525 urb->iso_frame_desc[i].length = mtu;
526 }
527
528 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
529 urb->iso_frame_desc[i].offset = offset;
530 urb->iso_frame_desc[i].length = len;
531 i++;
532 }
533
534 urb->number_of_packets = i;
535}
536
2eda66f4 537static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
9bfa35fe 538{
155961e8 539 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 540 struct urb *urb;
541 unsigned char *buf;
542 unsigned int pipe;
543 int err, size;
544
545 BT_DBG("%s", hdev->name);
546
547 if (!data->isoc_rx_ep)
548 return -ENODEV;
549
2eda66f4 550 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
9bfa35fe
MH		 551 if (!urb)
552 return -ENOMEM;
553
554 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
555 BTUSB_MAX_ISOC_FRAMES;
556
2eda66f4 557 buf = kmalloc(size, mem_flags);
9bfa35fe
MH		 558 if (!buf) {
559 usb_free_urb(urb);
560 return -ENOMEM;
561 }
562
563 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
564
fa0fb93f
BZ		 565 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
566 hdev, data->isoc_rx_ep->bInterval);
9bfa35fe
MH		 567
568 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
9bfa35fe
MH		 569
570 __fill_isoc_descriptor(urb, size,
571 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
572
573 usb_anchor_urb(urb, &data->isoc_anchor);
574
2eda66f4 575 err = usb_submit_urb(urb, mem_flags);
9bfa35fe 576 if (err < 0) {
d4b8d1c9
PB		 577 if (err != -EPERM && err != -ENODEV)
578 BT_ERR("%s urb %p submission failed (%d)",
9bfa35fe
MH		 579 hdev->name, urb, -err);
580 usb_unanchor_urb(urb);
9bfa35fe
MH		 581 }
582
583 usb_free_urb(urb);
584
585 return err;
586}
587
5e23b923 588static void btusb_tx_complete(struct urb *urb)
7bee549e
ON		 589{
590 struct sk_buff *skb = urb->context;
591 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
155961e8 592 struct btusb_data *data = hci_get_drvdata(hdev);
7bee549e
ON		 593
594 BT_DBG("%s urb %p status %d count %d", hdev->name,
595 urb, urb->status, urb->actual_length);
596
597 if (!test_bit(HCI_RUNNING, &hdev->flags))
598 goto done;
599
600 if (!urb->status)
601 hdev->stat.byte_tx += urb->transfer_buffer_length;
602 else
603 hdev->stat.err_tx++;
604
605done:
606 spin_lock(&data->txlock);
607 data->tx_in_flight--;
608 spin_unlock(&data->txlock);
609
610 kfree(urb->setup_packet);
611
612 kfree_skb(skb);
613}
614
615static void btusb_isoc_tx_complete(struct urb *urb)
5e23b923
MH		 616{
617 struct sk_buff *skb = urb->context;
618 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
619
620 BT_DBG("%s urb %p status %d count %d", hdev->name,
621 urb, urb->status, urb->actual_length);
622
623 if (!test_bit(HCI_RUNNING, &hdev->flags))
624 goto done;
625
626 if (!urb->status)
627 hdev->stat.byte_tx += urb->transfer_buffer_length;
628 else
629 hdev->stat.err_tx++;
630
631done:
632 kfree(urb->setup_packet);
633
634 kfree_skb(skb);
635}
636
637static int btusb_open(struct hci_dev *hdev)
638{
155961e8 639 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 640 int err;
641
642 BT_DBG("%s", hdev->name);
643
7bee549e
ON		 644 err = usb_autopm_get_interface(data->intf);
645 if (err < 0)
646 return err;
647
648 data->intf->needs_remote_wakeup = 1;
649
5e23b923 650 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
7bee549e 651 goto done;
5e23b923
MH		 652
653 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
7bee549e 654 goto done;
5e23b923 655
2eda66f4 656 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
43c2e57f
MH		 657 if (err < 0)
658 goto failed;
659
660 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
5e23b923 661 if (err < 0) {
43c2e57f
MH		 662 usb_kill_anchored_urbs(&data->intr_anchor);
663 goto failed;
5e23b923
MH		 664 }
665
43c2e57f
MH		 666 set_bit(BTUSB_BULK_RUNNING, &data->flags);
667 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
668
7bee549e
ON		 669done:
670 usb_autopm_put_interface(data->intf);
43c2e57f
MH		 671 return 0;
672
673failed:
674 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
675 clear_bit(HCI_RUNNING, &hdev->flags);
7bee549e 676 usb_autopm_put_interface(data->intf);
5e23b923
MH		 677 return err;
678}
679
7bee549e
ON		 680static void btusb_stop_traffic(struct btusb_data *data)
681{
682 usb_kill_anchored_urbs(&data->intr_anchor);
683 usb_kill_anchored_urbs(&data->bulk_anchor);
684 usb_kill_anchored_urbs(&data->isoc_anchor);
685}
686
5e23b923
MH		 687static int btusb_close(struct hci_dev *hdev)
688{
155961e8 689 struct btusb_data *data = hci_get_drvdata(hdev);
7bee549e 690 int err;
5e23b923
MH		 691
692 BT_DBG("%s", hdev->name);
693
694 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
695 return 0;
696
e8c3c3d2 697 cancel_work_sync(&data->work);
404291ac 698 cancel_work_sync(&data->waker);
e8c3c3d2 699
9bfa35fe 700 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
5e23b923 701 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
5e23b923 702 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
7bee549e
ON		 703
704 btusb_stop_traffic(data);
705 err = usb_autopm_get_interface(data->intf);
706 if (err < 0)
7b8e2c1d 707 goto failed;
7bee549e
ON		 708
709 data->intf->needs_remote_wakeup = 0;
710 usb_autopm_put_interface(data->intf);
5e23b923 711
7b8e2c1d
ON		 712failed:
713 usb_scuttle_anchored_urbs(&data->deferred);
5e23b923
MH		 714 return 0;
715}
716
717static int btusb_flush(struct hci_dev *hdev)
718{
155961e8 719 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 720
721 BT_DBG("%s", hdev->name);
722
723 usb_kill_anchored_urbs(&data->tx_anchor);
724
725 return 0;
726}
727
7bd8f09f 728static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
5e23b923 729{
155961e8 730 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 731 struct usb_ctrlrequest *dr;
732 struct urb *urb;
733 unsigned int pipe;
734 int err;
735
736 BT_DBG("%s", hdev->name);
737
738 if (!test_bit(HCI_RUNNING, &hdev->flags))
739 return -EBUSY;
740
7bd8f09f
MH		 741 skb->dev = (void *) hdev;
742
5e23b923
MH		 743 switch (bt_cb(skb)->pkt_type) {
744 case HCI_COMMAND_PKT:
745 urb = usb_alloc_urb(0, GFP_ATOMIC);
746 if (!urb)
747 return -ENOMEM;
748
749 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
750 if (!dr) {
751 usb_free_urb(urb);
752 return -ENOMEM;
753 }
754
7a9d4020 755 dr->bRequestType = data->cmdreq_type;
5e23b923
MH		 756 dr->bRequest = 0;
757 dr->wIndex = 0;
758 dr->wValue = 0;
759 dr->wLength = __cpu_to_le16(skb->len);
760
761 pipe = usb_sndctrlpipe(data->udev, 0x00);
762
763 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
764 skb->data, skb->len, btusb_tx_complete, skb);
765
766 hdev->stat.cmd_tx++;
767 break;
768
769 case HCI_ACLDATA_PKT:
9fd481e0 770 if (!data->bulk_tx_ep)
9bfa35fe
MH		 771 return -ENODEV;
772
5e23b923
MH		 773 urb = usb_alloc_urb(0, GFP_ATOMIC);
774 if (!urb)
775 return -ENOMEM;
776
777 pipe = usb_sndbulkpipe(data->udev,
778 data->bulk_tx_ep->bEndpointAddress);
779
780 usb_fill_bulk_urb(urb, data->udev, pipe,
781 skb->data, skb->len, btusb_tx_complete, skb);
782
783 hdev->stat.acl_tx++;
784 break;
785
786 case HCI_SCODATA_PKT:
014f7bc7 787 if (!data->isoc_tx_ep || hci_conn_num(hdev, SCO_LINK) < 1)
9bfa35fe
MH		 788 return -ENODEV;
789
790 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
791 if (!urb)
792 return -ENOMEM;
793
794 pipe = usb_sndisocpipe(data->udev,
795 data->isoc_tx_ep->bEndpointAddress);
796
03c2d0e8
GP		 797 usb_fill_int_urb(urb, data->udev, pipe,
798 skb->data, skb->len, btusb_isoc_tx_complete,
799 skb, data->isoc_tx_ep->bInterval);
9bfa35fe
MH		 800
801 urb->transfer_flags = URB_ISO_ASAP;
9bfa35fe
MH		 802
803 __fill_isoc_descriptor(urb, skb->len,
804 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
805
5e23b923 806 hdev->stat.sco_tx++;
7bee549e 807 goto skip_waking;
5e23b923
MH		 808
809 default:
810 return -EILSEQ;
811 }
812
7bee549e
ON		 813 err = inc_tx(data);
814 if (err) {
815 usb_anchor_urb(urb, &data->deferred);
816 schedule_work(&data->waker);
817 err = 0;
818 goto done;
819 }
820
821skip_waking:
5e23b923
MH		 822 usb_anchor_urb(urb, &data->tx_anchor);
823
824 err = usb_submit_urb(urb, GFP_ATOMIC);
825 if (err < 0) {
5a9b80e2
PB		 826 if (err != -EPERM && err != -ENODEV)
827 BT_ERR("%s urb %p submission failed (%d)",
828 hdev->name, urb, -err);
5e23b923
MH		 829 kfree(urb->setup_packet);
830 usb_unanchor_urb(urb);
7bee549e
ON		 831 } else {
832 usb_mark_last_busy(data->udev);
5e23b923
MH		 833 }
834
7bee549e 835done:
54a8a79c 836 usb_free_urb(urb);
5e23b923
MH		 837 return err;
838}
839
5e23b923
MH		 840static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
841{
155961e8 842 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 843
844 BT_DBG("%s evt %d", hdev->name, evt);
845
014f7bc7
MH		 846 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
847 data->sco_num = hci_conn_num(hdev, SCO_LINK);
43c2e57f 848 schedule_work(&data->work);
a780efa8 849 }
5e23b923
MH		 850}
851
42b16b3f 852static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
9bfa35fe 853{
155961e8 854 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 855 struct usb_interface *intf = data->isoc;
856 struct usb_endpoint_descriptor *ep_desc;
857 int i, err;
858
859 if (!data->isoc)
860 return -ENODEV;
861
862 err = usb_set_interface(data->udev, 1, altsetting);
863 if (err < 0) {
864 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
865 return err;
866 }
867
868 data->isoc_altsetting = altsetting;
869
870 data->isoc_tx_ep = NULL;
871 data->isoc_rx_ep = NULL;
872
873 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
874 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
875
876 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
877 data->isoc_tx_ep = ep_desc;
878 continue;
879 }
880
881 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
882 data->isoc_rx_ep = ep_desc;
883 continue;
884 }
885 }
886
887 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
888 BT_ERR("%s invalid SCO descriptors", hdev->name);
889 return -ENODEV;
890 }
891
892 return 0;
893}
894
5e23b923
MH		 895static void btusb_work(struct work_struct *work)
896{
897 struct btusb_data *data = container_of(work, struct btusb_data, work);
898 struct hci_dev *hdev = data->hdev;
f4001d28 899 int new_alts;
7bee549e 900 int err;
5e23b923 901
014f7bc7 902 if (data->sco_num > 0) {
08b8b6c4 903 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
8efdd0cd 904 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
7bee549e
ON		 905 if (err < 0) {
906 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
907 usb_kill_anchored_urbs(&data->isoc_anchor);
908 return;
909 }
910
08b8b6c4 911 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
7bee549e 912 }
f4001d28
MA		 913
914 if (hdev->voice_setting & 0x0020) {
915 static const int alts[3] = { 2, 4, 5 };
014f7bc7 916 new_alts = alts[data->sco_num - 1];
f4001d28 917 } else {
014f7bc7 918 new_alts = data->sco_num;
f4001d28
MA		 919 }
920
921 if (data->isoc_altsetting != new_alts) {
9bfa35fe
MH		 922 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
923 usb_kill_anchored_urbs(&data->isoc_anchor);
924
f4001d28 925 if (__set_isoc_interface(hdev, new_alts) < 0)
9bfa35fe
MH		 926 return;
927 }
928
929 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2eda66f4 930 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
9bfa35fe
MH		 931 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
932 else
2eda66f4 933 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
9bfa35fe
MH		 934 }
935 } else {
936 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
937 usb_kill_anchored_urbs(&data->isoc_anchor);
938
939 __set_isoc_interface(hdev, 0);
08b8b6c4 940 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
8efdd0cd 941 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
5e23b923
MH		 942 }
943}
944
7bee549e
ON		 945static void btusb_waker(struct work_struct *work)
946{
947 struct btusb_data *data = container_of(work, struct btusb_data, waker);
948 int err;
949
950 err = usb_autopm_get_interface(data->intf);
951 if (err < 0)
952 return;
953
954 usb_autopm_put_interface(data->intf);
955}
956
9f8f962c
MH		 957static int btusb_setup_bcm92035(struct hci_dev *hdev)
958{
959 struct sk_buff *skb;
960 u8 val = 0x00;
961
962 BT_DBG("%s", hdev->name);
963
964 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
965 if (IS_ERR(skb))
966 BT_ERR("BCM92035 command failed (%ld)", -PTR_ERR(skb));
967 else
968 kfree_skb(skb);
969
970 return 0;
971}
972
81cac64b
MH		 973static int btusb_setup_csr(struct hci_dev *hdev)
974{
975 struct hci_rp_read_local_version *rp;
976 struct sk_buff *skb;
977 int ret;
978
979 BT_DBG("%s", hdev->name);
980
981 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
982 HCI_INIT_TIMEOUT);
983 if (IS_ERR(skb)) {
984 BT_ERR("Reading local version failed (%ld)", -PTR_ERR(skb));
985 return -PTR_ERR(skb);
986 }
987
988 rp = (struct hci_rp_read_local_version *) skb->data;
989
990 if (!rp->status) {
991 if (le16_to_cpu(rp->manufacturer) != 10) {
992 /* Clear the reset quirk since this is not an actual
993 * early Bluetooth 1.1 device from CSR.
994 */
995 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
996
997 /* These fake CSR controllers have all a broken
998 * stored link key handling and so just disable it.
999 */
1000 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY,
1001 &hdev->quirks);
1002 }
1003 }
1004
1005 ret = -bt_to_errno(rp->status);
1006
1007 kfree_skb(skb);
1008
1009 return ret;
1010}
1011
dffd30ee
THJA		 1012struct intel_version {
1013 u8 status;
1014 u8 hw_platform;
1015 u8 hw_variant;
1016 u8 hw_revision;
1017 u8 fw_variant;
1018 u8 fw_revision;
1019 u8 fw_build_num;
1020 u8 fw_build_ww;
1021 u8 fw_build_yy;
1022 u8 fw_patch_num;
1023} __packed;
1024
1025static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
1026 struct intel_version *ver)
1027{
1028 const struct firmware *fw;
1029 char fwname[64];
1030 int ret;
1031
1032 snprintf(fwname, sizeof(fwname),
1033 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1034 ver->hw_platform, ver->hw_variant, ver->hw_revision,
1035 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
1036 ver->fw_build_ww, ver->fw_build_yy);
1037
1038 ret = request_firmware(&fw, fwname, &hdev->dev);
1039 if (ret < 0) {
1040 if (ret == -EINVAL) {
1041 BT_ERR("%s Intel firmware file request failed (%d)",
1042 hdev->name, ret);
1043 return NULL;
1044 }
1045
1046 BT_ERR("%s failed to open Intel firmware file: %s(%d)",
1047 hdev->name, fwname, ret);
1048
1049 /* If the correct firmware patch file is not found, use the
1050 * default firmware patch file instead
1051 */
1052 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1053 ver->hw_platform, ver->hw_variant);
1054 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1055 BT_ERR("%s failed to open default Intel fw file: %s",
1056 hdev->name, fwname);
1057 return NULL;
1058 }
1059 }
1060
1061 BT_INFO("%s: Intel Bluetooth firmware file: %s", hdev->name, fwname);
1062
1063 return fw;
1064}
1065
1066static int btusb_setup_intel_patching(struct hci_dev *hdev,
1067 const struct firmware *fw,
1068 const u8 **fw_ptr, int *disable_patch)
1069{
1070 struct sk_buff *skb;
1071 struct hci_command_hdr *cmd;
1072 const u8 *cmd_param;
1073 struct hci_event_hdr *evt = NULL;
1074 const u8 *evt_param = NULL;
1075 int remain = fw->size - (*fw_ptr - fw->data);
1076
1077 /* The first byte indicates the types of the patch command or event.
1078 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1079 * in the current firmware buffer doesn't start with 0x01 or
1080 * the size of remain buffer is smaller than HCI command header,
1081 * the firmware file is corrupted and it should stop the patching
1082 * process.
1083 */
1084 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1085 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name);
1086 return -EINVAL;
1087 }
1088 (*fw_ptr)++;
1089 remain--;
1090
1091 cmd = (struct hci_command_hdr *)(*fw_ptr);
1092 *fw_ptr += sizeof(*cmd);
1093 remain -= sizeof(*cmd);
1094
1095 /* Ensure that the remain firmware data is long enough than the length
1096 * of command parameter. If not, the firmware file is corrupted.
1097 */
1098 if (remain < cmd->plen) {
1099 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name);
1100 return -EFAULT;
1101 }
1102
1103 /* If there is a command that loads a patch in the firmware
1104 * file, then enable the patch upon success, otherwise just
1105 * disable the manufacturer mode, for example patch activation
1106 * is not required when the default firmware patch file is used
1107 * because there are no patch data to load.
1108 */
1109 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1110 *disable_patch = 0;
1111
1112 cmd_param = *fw_ptr;
1113 *fw_ptr += cmd->plen;
1114 remain -= cmd->plen;
1115
1116 /* This reads the expected events when the above command is sent to the
1117 * device. Some vendor commands expects more than one events, for
1118 * example command status event followed by vendor specific event.
1119 * For this case, it only keeps the last expected event. so the command
1120 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1121 * last expected event.
1122 */
1123 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1124 (*fw_ptr)++;
1125 remain--;
1126
1127 evt = (struct hci_event_hdr *)(*fw_ptr);
1128 *fw_ptr += sizeof(*evt);
1129 remain -= sizeof(*evt);
1130
1131 if (remain < evt->plen) {
1132 BT_ERR("%s Intel fw corrupted: invalid evt len",
1133 hdev->name);
1134 return -EFAULT;
1135 }
1136
1137 evt_param = *fw_ptr;
1138 *fw_ptr += evt->plen;
1139 remain -= evt->plen;
1140 }
1141
1142 /* Every HCI commands in the firmware file has its correspond event.
1143 * If event is not found or remain is smaller than zero, the firmware
1144 * file is corrupted.
1145 */
1146 if (!evt || !evt_param || remain < 0) {
1147 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name);
1148 return -EFAULT;
1149 }
1150
1151 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1152 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1153 if (IS_ERR(skb)) {
1154 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)",
1155 hdev->name, cmd->opcode, PTR_ERR(skb));
d9c78e97 1156 return PTR_ERR(skb);
dffd30ee
THJA		 1157 }
1158
1159 /* It ensures that the returned event matches the event data read from
1160 * the firmware file. At fist, it checks the length and then
1161 * the contents of the event.
1162 */
1163 if (skb->len != evt->plen) {
1164 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name,
1165 le16_to_cpu(cmd->opcode));
1166 kfree_skb(skb);
1167 return -EFAULT;
1168 }
1169
1170 if (memcmp(skb->data, evt_param, evt->plen)) {
1171 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)",
1172 hdev->name, le16_to_cpu(cmd->opcode));
1173 kfree_skb(skb);
1174 return -EFAULT;
1175 }
1176 kfree_skb(skb);
1177
1178 return 0;
1179}
1180
1181static int btusb_setup_intel(struct hci_dev *hdev)
1182{
1183 struct sk_buff *skb;
1184 const struct firmware *fw;
1185 const u8 *fw_ptr;
1186 int disable_patch;
1187 struct intel_version *ver;
1188
1189 const u8 mfg_enable[] = { 0x01, 0x00 };
1190 const u8 mfg_disable[] = { 0x00, 0x00 };
1191 const u8 mfg_reset_deactivate[] = { 0x00, 0x01 };
1192 const u8 mfg_reset_activate[] = { 0x00, 0x02 };
1193
1194 BT_DBG("%s", hdev->name);
1195
1196 /* The controller has a bug with the first HCI command sent to it
1197 * returning number of completed commands as zero. This would stall the
1198 * command processing in the Bluetooth core.
1199 *
1200 * As a workaround, send HCI Reset command first which will reset the
1201 * number of completed commands and allow normal command processing
1202 * from now on.
1203 */
1204 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1205 if (IS_ERR(skb)) {
1206 BT_ERR("%s sending initial HCI reset command failed (%ld)",
1207 hdev->name, PTR_ERR(skb));
d9c78e97 1208 return PTR_ERR(skb);
dffd30ee
THJA		 1209 }
1210 kfree_skb(skb);
1211
1212 /* Read Intel specific controller version first to allow selection of
1213 * which firmware file to load.
1214 *
1215 * The returned information are hardware variant and revision plus
1216 * firmware variant, revision and build number.
1217 */
1218 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
1219 if (IS_ERR(skb)) {
1220 BT_ERR("%s reading Intel fw version command failed (%ld)",
1221 hdev->name, PTR_ERR(skb));
d9c78e97 1222 return PTR_ERR(skb);
dffd30ee
THJA		 1223 }
1224
1225 if (skb->len != sizeof(*ver)) {
1226 BT_ERR("%s Intel version event length mismatch", hdev->name);
1227 kfree_skb(skb);
1228 return -EIO;
1229 }
1230
1231 ver = (struct intel_version *)skb->data;
1232 if (ver->status) {
1233 BT_ERR("%s Intel fw version event failed (%02x)", hdev->name,
1234 ver->status);
1235 kfree_skb(skb);
1236 return -bt_to_errno(ver->status);
1237 }
1238
1239 BT_INFO("%s: read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1240 hdev->name, ver->hw_platform, ver->hw_variant,
1241 ver->hw_revision, ver->fw_variant, ver->fw_revision,
1242 ver->fw_build_num, ver->fw_build_ww, ver->fw_build_yy,
1243 ver->fw_patch_num);
1244
1245 /* fw_patch_num indicates the version of patch the device currently
1246 * have. If there is no patch data in the device, it is always 0x00.
1247 * So, if it is other than 0x00, no need to patch the deivce again.
1248 */
1249 if (ver->fw_patch_num) {
1250 BT_INFO("%s: Intel device is already patched. patch num: %02x",
1251 hdev->name, ver->fw_patch_num);
1252 kfree_skb(skb);
1253 return 0;
1254 }
1255
1256 /* Opens the firmware patch file based on the firmware version read
1257 * from the controller. If it fails to open the matching firmware
1258 * patch file, it tries to open the default firmware patch file.
1259 * If no patch file is found, allow the device to operate without
1260 * a patch.
1261 */
1262 fw = btusb_setup_intel_get_fw(hdev, ver);
1263 if (!fw) {
1264 kfree_skb(skb);
1265 return 0;
1266 }
1267 fw_ptr = fw->data;
1268
1269 /* This Intel specific command enables the manufacturer mode of the
1270 * controller.
1271 *
1272 * Only while this mode is enabled, the driver can download the
1273 * firmware patch data and configuration parameters.
1274 */
1275 skb = __hci_cmd_sync(hdev, 0xfc11, 2, mfg_enable, HCI_INIT_TIMEOUT);
1276 if (IS_ERR(skb)) {
1277 BT_ERR("%s entering Intel manufacturer mode failed (%ld)",
1278 hdev->name, PTR_ERR(skb));
1279 release_firmware(fw);
d9c78e97 1280 return PTR_ERR(skb);
dffd30ee
THJA		 1281 }
1282
1283 if (skb->data[0]) {
1284 u8 evt_status = skb->data[0];
1285 BT_ERR("%s enable Intel manufacturer mode event failed (%02x)",
1286 hdev->name, evt_status);
1287 kfree_skb(skb);
1288 release_firmware(fw);
1289 return -bt_to_errno(evt_status);
1290 }
1291 kfree_skb(skb);
1292
1293 disable_patch = 1;
1294
1295 /* The firmware data file consists of list of Intel specific HCI
1296 * commands and its expected events. The first byte indicates the
1297 * type of the message, either HCI command or HCI event.
1298 *
1299 * It reads the command and its expected event from the firmware file,
1300 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1301 * the returned event is compared with the event read from the firmware
1302 * file and it will continue until all the messages are downloaded to
1303 * the controller.
1304 *
1305 * Once the firmware patching is completed successfully,
1306 * the manufacturer mode is disabled with reset and activating the
1307 * downloaded patch.
1308 *
1309 * If the firmware patching fails, the manufacturer mode is
1310 * disabled with reset and deactivating the patch.
1311 *
1312 * If the default patch file is used, no reset is done when disabling
1313 * the manufacturer.
1314 */
1315 while (fw->size > fw_ptr - fw->data) {
1316 int ret;
1317
1318 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1319 &disable_patch);
1320 if (ret < 0)
1321 goto exit_mfg_deactivate;
1322 }
1323
1324 release_firmware(fw);
1325
1326 if (disable_patch)
1327 goto exit_mfg_disable;
1328
1329 /* Patching completed successfully and disable the manufacturer mode
1330 * with reset and activate the downloaded firmware patches.
1331 */
1332 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_activate),
1333 mfg_reset_activate, HCI_INIT_TIMEOUT);
1334 if (IS_ERR(skb)) {
1335 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1336 hdev->name, PTR_ERR(skb));
d9c78e97 1337 return PTR_ERR(skb);
dffd30ee
THJA		 1338 }
1339 kfree_skb(skb);
1340
1341 BT_INFO("%s: Intel Bluetooth firmware patch completed and activated",
1342 hdev->name);
1343
1344 return 0;
1345
1346exit_mfg_disable:
1347 /* Disable the manufacturer mode without reset */
1348 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_disable), mfg_disable,
1349 HCI_INIT_TIMEOUT);
1350 if (IS_ERR(skb)) {
1351 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1352 hdev->name, PTR_ERR(skb));
d9c78e97 1353 return PTR_ERR(skb);
dffd30ee
THJA		 1354 }
1355 kfree_skb(skb);
1356
1357 BT_INFO("%s: Intel Bluetooth firmware patch completed", hdev->name);
1358 return 0;
1359
1360exit_mfg_deactivate:
1361 release_firmware(fw);
1362
1363 /* Patching failed. Disable the manufacturer mode with reset and
1364 * deactivate the downloaded firmware patches.
1365 */
1366 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_deactivate),
1367 mfg_reset_deactivate, HCI_INIT_TIMEOUT);
1368 if (IS_ERR(skb)) {
1369 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1370 hdev->name, PTR_ERR(skb));
d9c78e97 1371 return PTR_ERR(skb);
dffd30ee
THJA		 1372 }
1373 kfree_skb(skb);
1374
1375 BT_INFO("%s: Intel Bluetooth firmware patch completed and deactivated",
1376 hdev->name);
1377
1378 return 0;
1379}
1380
5e23b923
MH		 1381static int btusb_probe(struct usb_interface *intf,
1382 const struct usb_device_id *id)
1383{
1384 struct usb_endpoint_descriptor *ep_desc;
1385 struct btusb_data *data;
1386 struct hci_dev *hdev;
1387 int i, err;
1388
1389 BT_DBG("intf %p id %p", intf, id);
1390
cfeb4145 1391 /* interface numbers are hardcoded in the spec */
5e23b923
MH		 1392 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
1393 return -ENODEV;
1394
1395 if (!id->driver_info) {
1396 const struct usb_device_id *match;
1397 match = usb_match_id(intf, blacklist_table);
1398 if (match)
1399 id = match;
1400 }
1401
cfeb4145
MH		 1402 if (id->driver_info == BTUSB_IGNORE)
1403 return -ENODEV;
1404
1405 if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
1406 return -ENODEV;
1407
1408 if (ignore_csr && id->driver_info & BTUSB_CSR)
1409 return -ENODEV;
1410
1411 if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
1412 return -ENODEV;
1413
2d25f8b4
SL		 1414 if (id->driver_info & BTUSB_ATH3012) {
1415 struct usb_device *udev = interface_to_usbdev(intf);
1416
1417 /* Old firmware would otherwise let ath3k driver load
1418 * patch and sysconfig files */
1419 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
1420 return -ENODEV;
1421 }
1422
98921dbd 1423 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
5e23b923
MH		 1424 if (!data)
1425 return -ENOMEM;
1426
1427 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1428 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1429
1430 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
1431 data->intr_ep = ep_desc;
1432 continue;
1433 }
1434
1435 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
1436 data->bulk_tx_ep = ep_desc;
1437 continue;
1438 }
1439
1440 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
1441 data->bulk_rx_ep = ep_desc;
1442 continue;
1443 }
1444 }
1445
98921dbd 1446 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
5e23b923 1447 return -ENODEV;
5e23b923 1448
7a9d4020
MH		 1449 data->cmdreq_type = USB_TYPE_CLASS;
1450
5e23b923 1451 data->udev = interface_to_usbdev(intf);
5fbcd260 1452 data->intf = intf;
5e23b923
MH		 1453
1454 spin_lock_init(&data->lock);
1455
1456 INIT_WORK(&data->work, btusb_work);
7bee549e
ON		 1457 INIT_WORK(&data->waker, btusb_waker);
1458 spin_lock_init(&data->txlock);
5e23b923
MH		 1459
1460 init_usb_anchor(&data->tx_anchor);
1461 init_usb_anchor(&data->intr_anchor);
1462 init_usb_anchor(&data->bulk_anchor);
9bfa35fe 1463 init_usb_anchor(&data->isoc_anchor);
7bee549e 1464 init_usb_anchor(&data->deferred);
5e23b923
MH		 1465
1466 hdev = hci_alloc_dev();
98921dbd 1467 if (!hdev)
5e23b923 1468 return -ENOMEM;
5e23b923 1469
c13854ce 1470 hdev->bus = HCI_USB;
155961e8 1471 hci_set_drvdata(hdev, data);
5e23b923
MH		 1472
1473 data->hdev = hdev;
1474
1475 SET_HCIDEV_DEV(hdev, &intf->dev);
1476
9f8f962c
MH		 1477 hdev->open = btusb_open;
1478 hdev->close = btusb_close;
1479 hdev->flush = btusb_flush;
1480 hdev->send = btusb_send_frame;
1481 hdev->notify = btusb_notify;
1482
1483 if (id->driver_info & BTUSB_BCM92035)
1484 hdev->setup = btusb_setup_bcm92035;
5e23b923 1485
d2bee8fb
THJA		 1486 if (id->driver_info & BTUSB_INTEL) {
1487 usb_enable_autosuspend(data->udev);
dffd30ee 1488 hdev->setup = btusb_setup_intel;
d2bee8fb 1489 }
dffd30ee 1490
7a9d4020 1491 /* Interface numbers are hardcoded in the specification */
9bfa35fe
MH		 1492 data->isoc = usb_ifnum_to_if(data->udev, 1);
1493
7a9d4020 1494 if (!reset)
a6c511c6 1495 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
cfeb4145
MH		 1496
1497 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1498 if (!disable_scofix)
1499 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1500 }
1501
9bfa35fe
MH		 1502 if (id->driver_info & BTUSB_BROKEN_ISOC)
1503 data->isoc = NULL;
1504
7a9d4020
MH		 1505 if (id->driver_info & BTUSB_DIGIANSWER) {
1506 data->cmdreq_type = USB_TYPE_VENDOR;
a6c511c6 1507 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
7a9d4020
MH		 1508 }
1509
1510 if (id->driver_info & BTUSB_CSR) {
1511 struct usb_device *udev = data->udev;
81cac64b 1512 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
7a9d4020
MH		 1513
1514 /* Old firmware would otherwise execute USB reset */
81cac64b 1515 if (bcdDevice < 0x117)
a6c511c6 1516 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
81cac64b
MH		 1517
1518 /* Fake CSR devices with broken commands */
1519 if (bcdDevice <= 0x100)
1520 hdev->setup = btusb_setup_csr;
7a9d4020
MH		 1521 }
1522
cfeb4145 1523 if (id->driver_info & BTUSB_SNIFFER) {
9bfa35fe 1524 struct usb_device *udev = data->udev;
cfeb4145 1525
7a9d4020 1526 /* New sniffer firmware has crippled HCI interface */
cfeb4145
MH		 1527 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1528 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
9bfa35fe
MH		 1529
1530 data->isoc = NULL;
cfeb4145
MH		 1531 }
1532
9bfa35fe
MH		 1533 if (data->isoc) {
1534 err = usb_driver_claim_interface(&btusb_driver,
5fbcd260 1535 data->isoc, data);
9bfa35fe
MH		 1536 if (err < 0) {
1537 hci_free_dev(hdev);
9bfa35fe
MH		 1538 return err;
1539 }
1540 }
1541
5e23b923
MH		 1542 err = hci_register_dev(hdev);
1543 if (err < 0) {
1544 hci_free_dev(hdev);
5e23b923
MH		 1545 return err;
1546 }
1547
1548 usb_set_intfdata(intf, data);
1549
1550 return 0;
1551}
1552
1553static void btusb_disconnect(struct usb_interface *intf)
1554{
1555 struct btusb_data *data = usb_get_intfdata(intf);
1556 struct hci_dev *hdev;
1557
1558 BT_DBG("intf %p", intf);
1559
1560 if (!data)
1561 return;
1562
1563 hdev = data->hdev;
5fbcd260
MH		 1564 usb_set_intfdata(data->intf, NULL);
1565
1566 if (data->isoc)
1567 usb_set_intfdata(data->isoc, NULL);
5e23b923
MH		 1568
1569 hci_unregister_dev(hdev);
1570
5fbcd260
MH		 1571 if (intf == data->isoc)
1572 usb_driver_release_interface(&btusb_driver, data->intf);
1573 else if (data->isoc)
1574 usb_driver_release_interface(&btusb_driver, data->isoc);
1575
5e23b923
MH		 1576 hci_free_dev(hdev);
1577}
1578
7bee549e 1579#ifdef CONFIG_PM
6a88adf2
MH		 1580static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1581{
1582 struct btusb_data *data = usb_get_intfdata(intf);
1583
1584 BT_DBG("intf %p", intf);
1585
1586 if (data->suspend_count++)
1587 return 0;
1588
7bee549e 1589 spin_lock_irq(&data->txlock);
5b1b0b81 1590 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
7bee549e
ON		 1591 set_bit(BTUSB_SUSPENDING, &data->flags);
1592 spin_unlock_irq(&data->txlock);
1593 } else {
1594 spin_unlock_irq(&data->txlock);
1595 data->suspend_count--;
1596 return -EBUSY;
1597 }
1598
6a88adf2
MH		 1599 cancel_work_sync(&data->work);
1600
7bee549e 1601 btusb_stop_traffic(data);
6a88adf2
MH		 1602 usb_kill_anchored_urbs(&data->tx_anchor);
1603
6a88adf2
MH		 1604 return 0;
1605}
1606
7bee549e
ON		 1607static void play_deferred(struct btusb_data *data)
1608{
1609 struct urb *urb;
1610 int err;
1611
1612 while ((urb = usb_get_from_anchor(&data->deferred))) {
1613 err = usb_submit_urb(urb, GFP_ATOMIC);
1614 if (err < 0)
1615 break;
1616
1617 data->tx_in_flight++;
1618 }
1619 usb_scuttle_anchored_urbs(&data->deferred);
1620}
1621
6a88adf2
MH		 1622static int btusb_resume(struct usb_interface *intf)
1623{
1624 struct btusb_data *data = usb_get_intfdata(intf);
1625 struct hci_dev *hdev = data->hdev;
7bee549e 1626 int err = 0;
6a88adf2
MH		 1627
1628 BT_DBG("intf %p", intf);
1629
1630 if (--data->suspend_count)
1631 return 0;
1632
1633 if (!test_bit(HCI_RUNNING, &hdev->flags))
7bee549e 1634 goto done;
6a88adf2
MH		 1635
1636 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1637 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1638 if (err < 0) {
1639 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
7bee549e 1640 goto failed;
6a88adf2
MH		 1641 }
1642 }
1643
1644 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
43c2e57f
MH		 1645 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1646 if (err < 0) {
6a88adf2 1647 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
7bee549e
ON		 1648 goto failed;
1649 }
1650
1651 btusb_submit_bulk_urb(hdev, GFP_NOIO);
6a88adf2
MH		 1652 }
1653
1654 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1655 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1656 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1657 else
1658 btusb_submit_isoc_urb(hdev, GFP_NOIO);
1659 }
1660
7bee549e
ON		 1661 spin_lock_irq(&data->txlock);
1662 play_deferred(data);
1663 clear_bit(BTUSB_SUSPENDING, &data->flags);
1664 spin_unlock_irq(&data->txlock);
1665 schedule_work(&data->work);
1666
6a88adf2 1667 return 0;
7bee549e
ON		 1668
1669failed:
1670 usb_scuttle_anchored_urbs(&data->deferred);
1671done:
1672 spin_lock_irq(&data->txlock);
1673 clear_bit(BTUSB_SUSPENDING, &data->flags);
1674 spin_unlock_irq(&data->txlock);
1675
1676 return err;
6a88adf2 1677}
7bee549e 1678#endif
6a88adf2 1679
5e23b923
MH		 1680static struct usb_driver btusb_driver = {
1681 .name = "btusb",
1682 .probe = btusb_probe,
1683 .disconnect = btusb_disconnect,
7bee549e 1684#ifdef CONFIG_PM
6a88adf2
MH		 1685 .suspend = btusb_suspend,
1686 .resume = btusb_resume,
7bee549e 1687#endif
5e23b923 1688 .id_table = btusb_table,
7bee549e 1689 .supports_autosuspend = 1,
e1f12eb6 1690 .disable_hub_initiated_lpm = 1,
5e23b923
MH		 1691};
1692
93f1508c 1693module_usb_driver(btusb_driver);
5e23b923 1694
cfeb4145
MH		 1695module_param(ignore_dga, bool, 0644);
1696MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1697
1698module_param(ignore_csr, bool, 0644);
1699MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1700
1701module_param(ignore_sniffer, bool, 0644);
1702MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1703
1704module_param(disable_scofix, bool, 0644);
1705MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1706
1707module_param(force_scofix, bool, 0644);
1708MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1709
1710module_param(reset, bool, 0644);
1711MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1712
5e23b923
MH		 1713MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1714MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1715MODULE_VERSION(VERSION);
1716MODULE_LICENSE("GPL");
Linux 6.x block layer and io_uring tree(s)