3 * Generic Bluetooth USB driver
5 * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org>
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.
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.
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
24 #include <linux/module.h>
25 #include <linux/usb.h>
26 #include <linux/firmware.h>
28 #include <net/bluetooth/bluetooth.h>
29 #include <net/bluetooth/hci_core.h>
33 static bool ignore_dga
;
34 static bool ignore_csr
;
35 static bool ignore_sniffer
;
36 static bool disable_scofix
;
37 static bool force_scofix
;
39 static bool reset
= 1;
41 static struct usb_driver btusb_driver
;
43 #define BTUSB_IGNORE 0x01
44 #define BTUSB_DIGIANSWER 0x02
45 #define BTUSB_CSR 0x04
46 #define BTUSB_SNIFFER 0x08
47 #define BTUSB_BCM92035 0x10
48 #define BTUSB_BROKEN_ISOC 0x20
49 #define BTUSB_WRONG_SCO_MTU 0x40
50 #define BTUSB_ATH3012 0x80
51 #define BTUSB_INTEL 0x100
53 static const struct usb_device_id btusb_table
[] = {
54 /* Generic Bluetooth USB device */
55 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
57 /* Apple-specific (Broadcom) devices */
58 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01) },
60 /* MediaTek MT76x0E */
61 { USB_DEVICE(0x0e8d, 0x763f) },
63 /* Broadcom SoftSailing reporting vendor specific */
64 { USB_DEVICE(0x0a5c, 0x21e1) },
66 /* Apple MacBookPro 7,1 */
67 { USB_DEVICE(0x05ac, 0x8213) },
70 { USB_DEVICE(0x05ac, 0x8215) },
72 /* Apple MacBookPro6,2 */
73 { USB_DEVICE(0x05ac, 0x8218) },
75 /* Apple MacBookAir3,1, MacBookAir3,2 */
76 { USB_DEVICE(0x05ac, 0x821b) },
78 /* Apple MacBookAir4,1 */
79 { USB_DEVICE(0x05ac, 0x821f) },
81 /* Apple MacBookPro8,2 */
82 { USB_DEVICE(0x05ac, 0x821a) },
84 /* Apple MacMini5,1 */
85 { USB_DEVICE(0x05ac, 0x8281) },
87 /* AVM BlueFRITZ! USB v2.0 */
88 { USB_DEVICE(0x057c, 0x3800) },
90 /* Bluetooth Ultraport Module from IBM */
91 { USB_DEVICE(0x04bf, 0x030a) },
93 /* ALPS Modules with non-standard id */
94 { USB_DEVICE(0x044e, 0x3001) },
95 { USB_DEVICE(0x044e, 0x3002) },
97 /* Ericsson with non-standard id */
98 { USB_DEVICE(0x0bdb, 0x1002) },
100 /* Canyon CN-BTU1 with HID interfaces */
101 { USB_DEVICE(0x0c10, 0x0000) },
103 /* Broadcom BCM20702A0 */
104 { USB_DEVICE(0x0489, 0xe042) },
105 { USB_DEVICE(0x04ca, 0x2003) },
106 { USB_DEVICE(0x0b05, 0x17b5) },
107 { USB_DEVICE(0x0b05, 0x17cb) },
108 { USB_DEVICE(0x413c, 0x8197) },
110 /* Foxconn - Hon Hai */
111 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01) },
113 /* Broadcom devices with vendor specific id */
114 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01) },
116 /* Belkin F8065bf - Broadcom based */
117 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01) },
119 /* IMC Networks - Broadcom based */
120 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01) },
122 { } /* Terminating entry */
125 MODULE_DEVICE_TABLE(usb
, btusb_table
);
127 static const struct usb_device_id blacklist_table
[] = {
128 /* CSR BlueCore devices */
129 { USB_DEVICE(0x0a12, 0x0001), .driver_info
= BTUSB_CSR
},
131 /* Broadcom BCM2033 without firmware */
132 { USB_DEVICE(0x0a5c, 0x2033), .driver_info
= BTUSB_IGNORE
},
134 /* Atheros 3011 with sflash firmware */
135 { USB_DEVICE(0x0489, 0xe027), .driver_info
= BTUSB_IGNORE
},
136 { USB_DEVICE(0x0489, 0xe03d), .driver_info
= BTUSB_IGNORE
},
137 { USB_DEVICE(0x0930, 0x0215), .driver_info
= BTUSB_IGNORE
},
138 { USB_DEVICE(0x0cf3, 0x3002), .driver_info
= BTUSB_IGNORE
},
139 { USB_DEVICE(0x0cf3, 0xe019), .driver_info
= BTUSB_IGNORE
},
140 { USB_DEVICE(0x13d3, 0x3304), .driver_info
= BTUSB_IGNORE
},
142 /* Atheros AR9285 Malbec with sflash firmware */
143 { USB_DEVICE(0x03f0, 0x311d), .driver_info
= BTUSB_IGNORE
},
145 /* Atheros 3012 with sflash firmware */
146 { USB_DEVICE(0x0489, 0xe04d), .driver_info
= BTUSB_ATH3012
},
147 { USB_DEVICE(0x0489, 0xe04e), .driver_info
= BTUSB_ATH3012
},
148 { USB_DEVICE(0x0489, 0xe056), .driver_info
= BTUSB_ATH3012
},
149 { USB_DEVICE(0x0489, 0xe057), .driver_info
= BTUSB_ATH3012
},
150 { USB_DEVICE(0x0489, 0xe05f), .driver_info
= BTUSB_ATH3012
},
151 { USB_DEVICE(0x04c5, 0x1330), .driver_info
= BTUSB_ATH3012
},
152 { USB_DEVICE(0x04ca, 0x3004), .driver_info
= BTUSB_ATH3012
},
153 { USB_DEVICE(0x04ca, 0x3005), .driver_info
= BTUSB_ATH3012
},
154 { USB_DEVICE(0x04ca, 0x3006), .driver_info
= BTUSB_ATH3012
},
155 { USB_DEVICE(0x04ca, 0x3007), .driver_info
= BTUSB_ATH3012
},
156 { USB_DEVICE(0x04ca, 0x3008), .driver_info
= BTUSB_ATH3012
},
157 { USB_DEVICE(0x04ca, 0x300b), .driver_info
= BTUSB_ATH3012
},
158 { USB_DEVICE(0x0930, 0x0219), .driver_info
= BTUSB_ATH3012
},
159 { USB_DEVICE(0x0930, 0x0220), .driver_info
= BTUSB_ATH3012
},
160 { USB_DEVICE(0x0b05, 0x17d0), .driver_info
= BTUSB_ATH3012
},
161 { USB_DEVICE(0x0cf3, 0x0036), .driver_info
= BTUSB_ATH3012
},
162 { USB_DEVICE(0x0cf3, 0x3004), .driver_info
= BTUSB_ATH3012
},
163 { USB_DEVICE(0x0cf3, 0x3005), .driver_info
= BTUSB_ATH3012
},
164 { USB_DEVICE(0x0cf3, 0x3008), .driver_info
= BTUSB_ATH3012
},
165 { USB_DEVICE(0x0cf3, 0x311d), .driver_info
= BTUSB_ATH3012
},
166 { USB_DEVICE(0x0cf3, 0x311e), .driver_info
= BTUSB_ATH3012
},
167 { USB_DEVICE(0x0cf3, 0x311f), .driver_info
= BTUSB_ATH3012
},
168 { USB_DEVICE(0x0cf3, 0x3121), .driver_info
= BTUSB_ATH3012
},
169 { USB_DEVICE(0x0cf3, 0x817a), .driver_info
= BTUSB_ATH3012
},
170 { USB_DEVICE(0x0cf3, 0xe003), .driver_info
= BTUSB_ATH3012
},
171 { USB_DEVICE(0x0cf3, 0xe004), .driver_info
= BTUSB_ATH3012
},
172 { USB_DEVICE(0x0cf3, 0xe005), .driver_info
= BTUSB_ATH3012
},
173 { USB_DEVICE(0x13d3, 0x3362), .driver_info
= BTUSB_ATH3012
},
174 { USB_DEVICE(0x13d3, 0x3375), .driver_info
= BTUSB_ATH3012
},
175 { USB_DEVICE(0x13d3, 0x3393), .driver_info
= BTUSB_ATH3012
},
176 { USB_DEVICE(0x13d3, 0x3402), .driver_info
= BTUSB_ATH3012
},
178 /* Atheros AR5BBU12 with sflash firmware */
179 { USB_DEVICE(0x0489, 0xe02c), .driver_info
= BTUSB_IGNORE
},
181 /* Atheros AR5BBU12 with sflash firmware */
182 { USB_DEVICE(0x0489, 0xe036), .driver_info
= BTUSB_ATH3012
},
183 { USB_DEVICE(0x0489, 0xe03c), .driver_info
= BTUSB_ATH3012
},
185 /* Broadcom BCM2035 */
186 { USB_DEVICE(0x0a5c, 0x2009), .driver_info
= BTUSB_BCM92035
},
187 { USB_DEVICE(0x0a5c, 0x200a), .driver_info
= BTUSB_WRONG_SCO_MTU
},
188 { USB_DEVICE(0x0a5c, 0x2035), .driver_info
= BTUSB_WRONG_SCO_MTU
},
190 /* Broadcom BCM2045 */
191 { USB_DEVICE(0x0a5c, 0x2039), .driver_info
= BTUSB_WRONG_SCO_MTU
},
192 { USB_DEVICE(0x0a5c, 0x2101), .driver_info
= BTUSB_WRONG_SCO_MTU
},
194 /* IBM/Lenovo ThinkPad with Broadcom chip */
195 { USB_DEVICE(0x0a5c, 0x201e), .driver_info
= BTUSB_WRONG_SCO_MTU
},
196 { USB_DEVICE(0x0a5c, 0x2110), .driver_info
= BTUSB_WRONG_SCO_MTU
},
198 /* HP laptop with Broadcom chip */
199 { USB_DEVICE(0x03f0, 0x171d), .driver_info
= BTUSB_WRONG_SCO_MTU
},
201 /* Dell laptop with Broadcom chip */
202 { USB_DEVICE(0x413c, 0x8126), .driver_info
= BTUSB_WRONG_SCO_MTU
},
204 /* Dell Wireless 370 and 410 devices */
205 { USB_DEVICE(0x413c, 0x8152), .driver_info
= BTUSB_WRONG_SCO_MTU
},
206 { USB_DEVICE(0x413c, 0x8156), .driver_info
= BTUSB_WRONG_SCO_MTU
},
208 /* Belkin F8T012 and F8T013 devices */
209 { USB_DEVICE(0x050d, 0x0012), .driver_info
= BTUSB_WRONG_SCO_MTU
},
210 { USB_DEVICE(0x050d, 0x0013), .driver_info
= BTUSB_WRONG_SCO_MTU
},
212 /* Asus WL-BTD202 device */
213 { USB_DEVICE(0x0b05, 0x1715), .driver_info
= BTUSB_WRONG_SCO_MTU
},
215 /* Kensington Bluetooth USB adapter */
216 { USB_DEVICE(0x047d, 0x105e), .driver_info
= BTUSB_WRONG_SCO_MTU
},
218 /* RTX Telecom based adapters with buggy SCO support */
219 { USB_DEVICE(0x0400, 0x0807), .driver_info
= BTUSB_BROKEN_ISOC
},
220 { USB_DEVICE(0x0400, 0x080a), .driver_info
= BTUSB_BROKEN_ISOC
},
222 /* CONWISE Technology based adapters with buggy SCO support */
223 { USB_DEVICE(0x0e5e, 0x6622), .driver_info
= BTUSB_BROKEN_ISOC
},
225 /* Digianswer devices */
226 { USB_DEVICE(0x08fd, 0x0001), .driver_info
= BTUSB_DIGIANSWER
},
227 { USB_DEVICE(0x08fd, 0x0002), .driver_info
= BTUSB_IGNORE
},
229 /* CSR BlueCore Bluetooth Sniffer */
230 { USB_DEVICE(0x0a12, 0x0002), .driver_info
= BTUSB_SNIFFER
},
232 /* Frontline ComProbe Bluetooth Sniffer */
233 { USB_DEVICE(0x16d3, 0x0002), .driver_info
= BTUSB_SNIFFER
},
235 /* Intel Bluetooth device */
236 { USB_DEVICE(0x8087, 0x07dc), .driver_info
= BTUSB_INTEL
},
237 { USB_DEVICE(0x8087, 0x0a2a), .driver_info
= BTUSB_INTEL
},
239 { } /* Terminating entry */
242 #define BTUSB_MAX_ISOC_FRAMES 10
244 #define BTUSB_INTR_RUNNING 0
245 #define BTUSB_BULK_RUNNING 1
246 #define BTUSB_ISOC_RUNNING 2
247 #define BTUSB_SUSPENDING 3
248 #define BTUSB_DID_ISO_RESUME 4
251 struct hci_dev
*hdev
;
252 struct usb_device
*udev
;
253 struct usb_interface
*intf
;
254 struct usb_interface
*isoc
;
260 struct work_struct work
;
261 struct work_struct waker
;
263 struct usb_anchor tx_anchor
;
264 struct usb_anchor intr_anchor
;
265 struct usb_anchor bulk_anchor
;
266 struct usb_anchor isoc_anchor
;
267 struct usb_anchor deferred
;
271 struct usb_endpoint_descriptor
*intr_ep
;
272 struct usb_endpoint_descriptor
*bulk_tx_ep
;
273 struct usb_endpoint_descriptor
*bulk_rx_ep
;
274 struct usb_endpoint_descriptor
*isoc_tx_ep
;
275 struct usb_endpoint_descriptor
*isoc_rx_ep
;
279 unsigned int sco_num
;
284 static int inc_tx(struct btusb_data
*data
)
289 spin_lock_irqsave(&data
->txlock
, flags
);
290 rv
= test_bit(BTUSB_SUSPENDING
, &data
->flags
);
292 data
->tx_in_flight
++;
293 spin_unlock_irqrestore(&data
->txlock
, flags
);
298 static void btusb_intr_complete(struct urb
*urb
)
300 struct hci_dev
*hdev
= urb
->context
;
301 struct btusb_data
*data
= hci_get_drvdata(hdev
);
304 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
305 urb
, urb
->status
, urb
->actual_length
);
307 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
310 if (urb
->status
== 0) {
311 hdev
->stat
.byte_rx
+= urb
->actual_length
;
313 if (hci_recv_fragment(hdev
, HCI_EVENT_PKT
,
314 urb
->transfer_buffer
,
315 urb
->actual_length
) < 0) {
316 BT_ERR("%s corrupted event packet", hdev
->name
);
321 if (!test_bit(BTUSB_INTR_RUNNING
, &data
->flags
))
324 usb_mark_last_busy(data
->udev
);
325 usb_anchor_urb(urb
, &data
->intr_anchor
);
327 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
329 /* -EPERM: urb is being killed;
330 * -ENODEV: device got disconnected */
331 if (err
!= -EPERM
&& err
!= -ENODEV
)
332 BT_ERR("%s urb %p failed to resubmit (%d)",
333 hdev
->name
, urb
, -err
);
334 usb_unanchor_urb(urb
);
338 static int btusb_submit_intr_urb(struct hci_dev
*hdev
, gfp_t mem_flags
)
340 struct btusb_data
*data
= hci_get_drvdata(hdev
);
346 BT_DBG("%s", hdev
->name
);
351 urb
= usb_alloc_urb(0, mem_flags
);
355 size
= le16_to_cpu(data
->intr_ep
->wMaxPacketSize
);
357 buf
= kmalloc(size
, mem_flags
);
363 pipe
= usb_rcvintpipe(data
->udev
, data
->intr_ep
->bEndpointAddress
);
365 usb_fill_int_urb(urb
, data
->udev
, pipe
, buf
, size
,
366 btusb_intr_complete
, hdev
,
367 data
->intr_ep
->bInterval
);
369 urb
->transfer_flags
|= URB_FREE_BUFFER
;
371 usb_anchor_urb(urb
, &data
->intr_anchor
);
373 err
= usb_submit_urb(urb
, mem_flags
);
375 if (err
!= -EPERM
&& err
!= -ENODEV
)
376 BT_ERR("%s urb %p submission failed (%d)",
377 hdev
->name
, urb
, -err
);
378 usb_unanchor_urb(urb
);
386 static void btusb_bulk_complete(struct urb
*urb
)
388 struct hci_dev
*hdev
= urb
->context
;
389 struct btusb_data
*data
= hci_get_drvdata(hdev
);
392 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
393 urb
, urb
->status
, urb
->actual_length
);
395 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
398 if (urb
->status
== 0) {
399 hdev
->stat
.byte_rx
+= urb
->actual_length
;
401 if (hci_recv_fragment(hdev
, HCI_ACLDATA_PKT
,
402 urb
->transfer_buffer
,
403 urb
->actual_length
) < 0) {
404 BT_ERR("%s corrupted ACL packet", hdev
->name
);
409 if (!test_bit(BTUSB_BULK_RUNNING
, &data
->flags
))
412 usb_anchor_urb(urb
, &data
->bulk_anchor
);
413 usb_mark_last_busy(data
->udev
);
415 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
417 /* -EPERM: urb is being killed;
418 * -ENODEV: device got disconnected */
419 if (err
!= -EPERM
&& err
!= -ENODEV
)
420 BT_ERR("%s urb %p failed to resubmit (%d)",
421 hdev
->name
, urb
, -err
);
422 usb_unanchor_urb(urb
);
426 static int btusb_submit_bulk_urb(struct hci_dev
*hdev
, gfp_t mem_flags
)
428 struct btusb_data
*data
= hci_get_drvdata(hdev
);
432 int err
, size
= HCI_MAX_FRAME_SIZE
;
434 BT_DBG("%s", hdev
->name
);
436 if (!data
->bulk_rx_ep
)
439 urb
= usb_alloc_urb(0, mem_flags
);
443 buf
= kmalloc(size
, mem_flags
);
449 pipe
= usb_rcvbulkpipe(data
->udev
, data
->bulk_rx_ep
->bEndpointAddress
);
451 usb_fill_bulk_urb(urb
, data
->udev
, pipe
,
452 buf
, size
, btusb_bulk_complete
, hdev
);
454 urb
->transfer_flags
|= URB_FREE_BUFFER
;
456 usb_mark_last_busy(data
->udev
);
457 usb_anchor_urb(urb
, &data
->bulk_anchor
);
459 err
= usb_submit_urb(urb
, mem_flags
);
461 if (err
!= -EPERM
&& err
!= -ENODEV
)
462 BT_ERR("%s urb %p submission failed (%d)",
463 hdev
->name
, urb
, -err
);
464 usb_unanchor_urb(urb
);
472 static void btusb_isoc_complete(struct urb
*urb
)
474 struct hci_dev
*hdev
= urb
->context
;
475 struct btusb_data
*data
= hci_get_drvdata(hdev
);
478 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
479 urb
, urb
->status
, urb
->actual_length
);
481 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
484 if (urb
->status
== 0) {
485 for (i
= 0; i
< urb
->number_of_packets
; i
++) {
486 unsigned int offset
= urb
->iso_frame_desc
[i
].offset
;
487 unsigned int length
= urb
->iso_frame_desc
[i
].actual_length
;
489 if (urb
->iso_frame_desc
[i
].status
)
492 hdev
->stat
.byte_rx
+= length
;
494 if (hci_recv_fragment(hdev
, HCI_SCODATA_PKT
,
495 urb
->transfer_buffer
+ offset
,
497 BT_ERR("%s corrupted SCO packet", hdev
->name
);
503 if (!test_bit(BTUSB_ISOC_RUNNING
, &data
->flags
))
506 usb_anchor_urb(urb
, &data
->isoc_anchor
);
508 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
510 /* -EPERM: urb is being killed;
511 * -ENODEV: device got disconnected */
512 if (err
!= -EPERM
&& err
!= -ENODEV
)
513 BT_ERR("%s urb %p failed to resubmit (%d)",
514 hdev
->name
, urb
, -err
);
515 usb_unanchor_urb(urb
);
519 static inline void __fill_isoc_descriptor(struct urb
*urb
, int len
, int mtu
)
523 BT_DBG("len %d mtu %d", len
, mtu
);
525 for (i
= 0; i
< BTUSB_MAX_ISOC_FRAMES
&& len
>= mtu
;
526 i
++, offset
+= mtu
, len
-= mtu
) {
527 urb
->iso_frame_desc
[i
].offset
= offset
;
528 urb
->iso_frame_desc
[i
].length
= mtu
;
531 if (len
&& i
< BTUSB_MAX_ISOC_FRAMES
) {
532 urb
->iso_frame_desc
[i
].offset
= offset
;
533 urb
->iso_frame_desc
[i
].length
= len
;
537 urb
->number_of_packets
= i
;
540 static int btusb_submit_isoc_urb(struct hci_dev
*hdev
, gfp_t mem_flags
)
542 struct btusb_data
*data
= hci_get_drvdata(hdev
);
548 BT_DBG("%s", hdev
->name
);
550 if (!data
->isoc_rx_ep
)
553 urb
= usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES
, mem_flags
);
557 size
= le16_to_cpu(data
->isoc_rx_ep
->wMaxPacketSize
) *
558 BTUSB_MAX_ISOC_FRAMES
;
560 buf
= kmalloc(size
, mem_flags
);
566 pipe
= usb_rcvisocpipe(data
->udev
, data
->isoc_rx_ep
->bEndpointAddress
);
568 usb_fill_int_urb(urb
, data
->udev
, pipe
, buf
, size
, btusb_isoc_complete
,
569 hdev
, data
->isoc_rx_ep
->bInterval
);
571 urb
->transfer_flags
= URB_FREE_BUFFER
| URB_ISO_ASAP
;
573 __fill_isoc_descriptor(urb
, size
,
574 le16_to_cpu(data
->isoc_rx_ep
->wMaxPacketSize
));
576 usb_anchor_urb(urb
, &data
->isoc_anchor
);
578 err
= usb_submit_urb(urb
, mem_flags
);
580 if (err
!= -EPERM
&& err
!= -ENODEV
)
581 BT_ERR("%s urb %p submission failed (%d)",
582 hdev
->name
, urb
, -err
);
583 usb_unanchor_urb(urb
);
591 static void btusb_tx_complete(struct urb
*urb
)
593 struct sk_buff
*skb
= urb
->context
;
594 struct hci_dev
*hdev
= (struct hci_dev
*) skb
->dev
;
595 struct btusb_data
*data
= hci_get_drvdata(hdev
);
597 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
598 urb
, urb
->status
, urb
->actual_length
);
600 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
604 hdev
->stat
.byte_tx
+= urb
->transfer_buffer_length
;
609 spin_lock(&data
->txlock
);
610 data
->tx_in_flight
--;
611 spin_unlock(&data
->txlock
);
613 kfree(urb
->setup_packet
);
618 static void btusb_isoc_tx_complete(struct urb
*urb
)
620 struct sk_buff
*skb
= urb
->context
;
621 struct hci_dev
*hdev
= (struct hci_dev
*) skb
->dev
;
623 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
624 urb
, urb
->status
, urb
->actual_length
);
626 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
630 hdev
->stat
.byte_tx
+= urb
->transfer_buffer_length
;
635 kfree(urb
->setup_packet
);
640 static int btusb_open(struct hci_dev
*hdev
)
642 struct btusb_data
*data
= hci_get_drvdata(hdev
);
645 BT_DBG("%s", hdev
->name
);
647 err
= usb_autopm_get_interface(data
->intf
);
651 data
->intf
->needs_remote_wakeup
= 1;
653 if (test_and_set_bit(HCI_RUNNING
, &hdev
->flags
))
656 if (test_and_set_bit(BTUSB_INTR_RUNNING
, &data
->flags
))
659 err
= btusb_submit_intr_urb(hdev
, GFP_KERNEL
);
663 err
= btusb_submit_bulk_urb(hdev
, GFP_KERNEL
);
665 usb_kill_anchored_urbs(&data
->intr_anchor
);
669 set_bit(BTUSB_BULK_RUNNING
, &data
->flags
);
670 btusb_submit_bulk_urb(hdev
, GFP_KERNEL
);
673 usb_autopm_put_interface(data
->intf
);
677 clear_bit(BTUSB_INTR_RUNNING
, &data
->flags
);
678 clear_bit(HCI_RUNNING
, &hdev
->flags
);
679 usb_autopm_put_interface(data
->intf
);
683 static void btusb_stop_traffic(struct btusb_data
*data
)
685 usb_kill_anchored_urbs(&data
->intr_anchor
);
686 usb_kill_anchored_urbs(&data
->bulk_anchor
);
687 usb_kill_anchored_urbs(&data
->isoc_anchor
);
690 static int btusb_close(struct hci_dev
*hdev
)
692 struct btusb_data
*data
= hci_get_drvdata(hdev
);
695 BT_DBG("%s", hdev
->name
);
697 if (!test_and_clear_bit(HCI_RUNNING
, &hdev
->flags
))
700 cancel_work_sync(&data
->work
);
701 cancel_work_sync(&data
->waker
);
703 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
704 clear_bit(BTUSB_BULK_RUNNING
, &data
->flags
);
705 clear_bit(BTUSB_INTR_RUNNING
, &data
->flags
);
707 btusb_stop_traffic(data
);
708 err
= usb_autopm_get_interface(data
->intf
);
712 data
->intf
->needs_remote_wakeup
= 0;
713 usb_autopm_put_interface(data
->intf
);
716 usb_scuttle_anchored_urbs(&data
->deferred
);
720 static int btusb_flush(struct hci_dev
*hdev
)
722 struct btusb_data
*data
= hci_get_drvdata(hdev
);
724 BT_DBG("%s", hdev
->name
);
726 usb_kill_anchored_urbs(&data
->tx_anchor
);
731 static int btusb_send_frame(struct hci_dev
*hdev
, struct sk_buff
*skb
)
733 struct btusb_data
*data
= hci_get_drvdata(hdev
);
734 struct usb_ctrlrequest
*dr
;
739 BT_DBG("%s", hdev
->name
);
741 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
744 skb
->dev
= (void *) hdev
;
746 switch (bt_cb(skb
)->pkt_type
) {
747 case HCI_COMMAND_PKT
:
748 urb
= usb_alloc_urb(0, GFP_ATOMIC
);
752 dr
= kmalloc(sizeof(*dr
), GFP_ATOMIC
);
758 dr
->bRequestType
= data
->cmdreq_type
;
762 dr
->wLength
= __cpu_to_le16(skb
->len
);
764 pipe
= usb_sndctrlpipe(data
->udev
, 0x00);
766 usb_fill_control_urb(urb
, data
->udev
, pipe
, (void *) dr
,
767 skb
->data
, skb
->len
, btusb_tx_complete
, skb
);
772 case HCI_ACLDATA_PKT
:
773 if (!data
->bulk_tx_ep
)
776 urb
= usb_alloc_urb(0, GFP_ATOMIC
);
780 pipe
= usb_sndbulkpipe(data
->udev
,
781 data
->bulk_tx_ep
->bEndpointAddress
);
783 usb_fill_bulk_urb(urb
, data
->udev
, pipe
,
784 skb
->data
, skb
->len
, btusb_tx_complete
, skb
);
789 case HCI_SCODATA_PKT
:
790 if (!data
->isoc_tx_ep
|| hci_conn_num(hdev
, SCO_LINK
) < 1)
793 urb
= usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES
, GFP_ATOMIC
);
797 pipe
= usb_sndisocpipe(data
->udev
,
798 data
->isoc_tx_ep
->bEndpointAddress
);
800 usb_fill_int_urb(urb
, data
->udev
, pipe
,
801 skb
->data
, skb
->len
, btusb_isoc_tx_complete
,
802 skb
, data
->isoc_tx_ep
->bInterval
);
804 urb
->transfer_flags
= URB_ISO_ASAP
;
806 __fill_isoc_descriptor(urb
, skb
->len
,
807 le16_to_cpu(data
->isoc_tx_ep
->wMaxPacketSize
));
818 usb_anchor_urb(urb
, &data
->deferred
);
819 schedule_work(&data
->waker
);
825 usb_anchor_urb(urb
, &data
->tx_anchor
);
827 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
829 if (err
!= -EPERM
&& err
!= -ENODEV
)
830 BT_ERR("%s urb %p submission failed (%d)",
831 hdev
->name
, urb
, -err
);
832 kfree(urb
->setup_packet
);
833 usb_unanchor_urb(urb
);
835 usb_mark_last_busy(data
->udev
);
843 static void btusb_notify(struct hci_dev
*hdev
, unsigned int evt
)
845 struct btusb_data
*data
= hci_get_drvdata(hdev
);
847 BT_DBG("%s evt %d", hdev
->name
, evt
);
849 if (hci_conn_num(hdev
, SCO_LINK
) != data
->sco_num
) {
850 data
->sco_num
= hci_conn_num(hdev
, SCO_LINK
);
851 schedule_work(&data
->work
);
855 static inline int __set_isoc_interface(struct hci_dev
*hdev
, int altsetting
)
857 struct btusb_data
*data
= hci_get_drvdata(hdev
);
858 struct usb_interface
*intf
= data
->isoc
;
859 struct usb_endpoint_descriptor
*ep_desc
;
865 err
= usb_set_interface(data
->udev
, 1, altsetting
);
867 BT_ERR("%s setting interface failed (%d)", hdev
->name
, -err
);
871 data
->isoc_altsetting
= altsetting
;
873 data
->isoc_tx_ep
= NULL
;
874 data
->isoc_rx_ep
= NULL
;
876 for (i
= 0; i
< intf
->cur_altsetting
->desc
.bNumEndpoints
; i
++) {
877 ep_desc
= &intf
->cur_altsetting
->endpoint
[i
].desc
;
879 if (!data
->isoc_tx_ep
&& usb_endpoint_is_isoc_out(ep_desc
)) {
880 data
->isoc_tx_ep
= ep_desc
;
884 if (!data
->isoc_rx_ep
&& usb_endpoint_is_isoc_in(ep_desc
)) {
885 data
->isoc_rx_ep
= ep_desc
;
890 if (!data
->isoc_tx_ep
|| !data
->isoc_rx_ep
) {
891 BT_ERR("%s invalid SCO descriptors", hdev
->name
);
898 static void btusb_work(struct work_struct
*work
)
900 struct btusb_data
*data
= container_of(work
, struct btusb_data
, work
);
901 struct hci_dev
*hdev
= data
->hdev
;
905 if (data
->sco_num
> 0) {
906 if (!test_bit(BTUSB_DID_ISO_RESUME
, &data
->flags
)) {
907 err
= usb_autopm_get_interface(data
->isoc
? data
->isoc
: data
->intf
);
909 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
910 usb_kill_anchored_urbs(&data
->isoc_anchor
);
914 set_bit(BTUSB_DID_ISO_RESUME
, &data
->flags
);
917 if (hdev
->voice_setting
& 0x0020) {
918 static const int alts
[3] = { 2, 4, 5 };
919 new_alts
= alts
[data
->sco_num
- 1];
921 new_alts
= data
->sco_num
;
924 if (data
->isoc_altsetting
!= new_alts
) {
925 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
926 usb_kill_anchored_urbs(&data
->isoc_anchor
);
928 if (__set_isoc_interface(hdev
, new_alts
) < 0)
932 if (!test_and_set_bit(BTUSB_ISOC_RUNNING
, &data
->flags
)) {
933 if (btusb_submit_isoc_urb(hdev
, GFP_KERNEL
) < 0)
934 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
936 btusb_submit_isoc_urb(hdev
, GFP_KERNEL
);
939 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
940 usb_kill_anchored_urbs(&data
->isoc_anchor
);
942 __set_isoc_interface(hdev
, 0);
943 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME
, &data
->flags
))
944 usb_autopm_put_interface(data
->isoc
? data
->isoc
: data
->intf
);
948 static void btusb_waker(struct work_struct
*work
)
950 struct btusb_data
*data
= container_of(work
, struct btusb_data
, waker
);
953 err
= usb_autopm_get_interface(data
->intf
);
957 usb_autopm_put_interface(data
->intf
);
960 static int btusb_setup_bcm92035(struct hci_dev
*hdev
)
965 BT_DBG("%s", hdev
->name
);
967 skb
= __hci_cmd_sync(hdev
, 0xfc3b, 1, &val
, HCI_INIT_TIMEOUT
);
969 BT_ERR("BCM92035 command failed (%ld)", -PTR_ERR(skb
));
976 static int btusb_setup_csr(struct hci_dev
*hdev
)
978 struct hci_rp_read_local_version
*rp
;
982 BT_DBG("%s", hdev
->name
);
984 skb
= __hci_cmd_sync(hdev
, HCI_OP_READ_LOCAL_VERSION
, 0, NULL
,
987 BT_ERR("Reading local version failed (%ld)", -PTR_ERR(skb
));
988 return -PTR_ERR(skb
);
991 rp
= (struct hci_rp_read_local_version
*) skb
->data
;
994 if (le16_to_cpu(rp
->manufacturer
) != 10) {
995 /* Clear the reset quirk since this is not an actual
996 * early Bluetooth 1.1 device from CSR.
998 clear_bit(HCI_QUIRK_RESET_ON_CLOSE
, &hdev
->quirks
);
1000 /* These fake CSR controllers have all a broken
1001 * stored link key handling and so just disable it.
1003 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY
,
1008 ret
= -bt_to_errno(rp
->status
);
1015 struct intel_version
{
1028 static const struct firmware
*btusb_setup_intel_get_fw(struct hci_dev
*hdev
,
1029 struct intel_version
*ver
)
1031 const struct firmware
*fw
;
1035 snprintf(fwname
, sizeof(fwname
),
1036 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1037 ver
->hw_platform
, ver
->hw_variant
, ver
->hw_revision
,
1038 ver
->fw_variant
, ver
->fw_revision
, ver
->fw_build_num
,
1039 ver
->fw_build_ww
, ver
->fw_build_yy
);
1041 ret
= request_firmware(&fw
, fwname
, &hdev
->dev
);
1043 if (ret
== -EINVAL
) {
1044 BT_ERR("%s Intel firmware file request failed (%d)",
1049 BT_ERR("%s failed to open Intel firmware file: %s(%d)",
1050 hdev
->name
, fwname
, ret
);
1052 /* If the correct firmware patch file is not found, use the
1053 * default firmware patch file instead
1055 snprintf(fwname
, sizeof(fwname
), "intel/ibt-hw-%x.%x.bseq",
1056 ver
->hw_platform
, ver
->hw_variant
);
1057 if (request_firmware(&fw
, fwname
, &hdev
->dev
) < 0) {
1058 BT_ERR("%s failed to open default Intel fw file: %s",
1059 hdev
->name
, fwname
);
1064 BT_INFO("%s: Intel Bluetooth firmware file: %s", hdev
->name
, fwname
);
1069 static int btusb_setup_intel_patching(struct hci_dev
*hdev
,
1070 const struct firmware
*fw
,
1071 const u8
**fw_ptr
, int *disable_patch
)
1073 struct sk_buff
*skb
;
1074 struct hci_command_hdr
*cmd
;
1075 const u8
*cmd_param
;
1076 struct hci_event_hdr
*evt
= NULL
;
1077 const u8
*evt_param
= NULL
;
1078 int remain
= fw
->size
- (*fw_ptr
- fw
->data
);
1080 /* The first byte indicates the types of the patch command or event.
1081 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1082 * in the current firmware buffer doesn't start with 0x01 or
1083 * the size of remain buffer is smaller than HCI command header,
1084 * the firmware file is corrupted and it should stop the patching
1087 if (remain
> HCI_COMMAND_HDR_SIZE
&& *fw_ptr
[0] != 0x01) {
1088 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev
->name
);
1094 cmd
= (struct hci_command_hdr
*)(*fw_ptr
);
1095 *fw_ptr
+= sizeof(*cmd
);
1096 remain
-= sizeof(*cmd
);
1098 /* Ensure that the remain firmware data is long enough than the length
1099 * of command parameter. If not, the firmware file is corrupted.
1101 if (remain
< cmd
->plen
) {
1102 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev
->name
);
1106 /* If there is a command that loads a patch in the firmware
1107 * file, then enable the patch upon success, otherwise just
1108 * disable the manufacturer mode, for example patch activation
1109 * is not required when the default firmware patch file is used
1110 * because there are no patch data to load.
1112 if (*disable_patch
&& le16_to_cpu(cmd
->opcode
) == 0xfc8e)
1115 cmd_param
= *fw_ptr
;
1116 *fw_ptr
+= cmd
->plen
;
1117 remain
-= cmd
->plen
;
1119 /* This reads the expected events when the above command is sent to the
1120 * device. Some vendor commands expects more than one events, for
1121 * example command status event followed by vendor specific event.
1122 * For this case, it only keeps the last expected event. so the command
1123 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1124 * last expected event.
1126 while (remain
> HCI_EVENT_HDR_SIZE
&& *fw_ptr
[0] == 0x02) {
1130 evt
= (struct hci_event_hdr
*)(*fw_ptr
);
1131 *fw_ptr
+= sizeof(*evt
);
1132 remain
-= sizeof(*evt
);
1134 if (remain
< evt
->plen
) {
1135 BT_ERR("%s Intel fw corrupted: invalid evt len",
1140 evt_param
= *fw_ptr
;
1141 *fw_ptr
+= evt
->plen
;
1142 remain
-= evt
->plen
;
1145 /* Every HCI commands in the firmware file has its correspond event.
1146 * If event is not found or remain is smaller than zero, the firmware
1147 * file is corrupted.
1149 if (!evt
|| !evt_param
|| remain
< 0) {
1150 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev
->name
);
1154 skb
= __hci_cmd_sync_ev(hdev
, le16_to_cpu(cmd
->opcode
), cmd
->plen
,
1155 cmd_param
, evt
->evt
, HCI_INIT_TIMEOUT
);
1157 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)",
1158 hdev
->name
, cmd
->opcode
, PTR_ERR(skb
));
1159 return PTR_ERR(skb
);
1162 /* It ensures that the returned event matches the event data read from
1163 * the firmware file. At fist, it checks the length and then
1164 * the contents of the event.
1166 if (skb
->len
!= evt
->plen
) {
1167 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev
->name
,
1168 le16_to_cpu(cmd
->opcode
));
1173 if (memcmp(skb
->data
, evt_param
, evt
->plen
)) {
1174 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)",
1175 hdev
->name
, le16_to_cpu(cmd
->opcode
));
1184 static int btusb_setup_intel(struct hci_dev
*hdev
)
1186 struct sk_buff
*skb
;
1187 const struct firmware
*fw
;
1190 struct intel_version
*ver
;
1192 const u8 mfg_enable
[] = { 0x01, 0x00 };
1193 const u8 mfg_disable
[] = { 0x00, 0x00 };
1194 const u8 mfg_reset_deactivate
[] = { 0x00, 0x01 };
1195 const u8 mfg_reset_activate
[] = { 0x00, 0x02 };
1197 BT_DBG("%s", hdev
->name
);
1199 /* The controller has a bug with the first HCI command sent to it
1200 * returning number of completed commands as zero. This would stall the
1201 * command processing in the Bluetooth core.
1203 * As a workaround, send HCI Reset command first which will reset the
1204 * number of completed commands and allow normal command processing
1207 skb
= __hci_cmd_sync(hdev
, HCI_OP_RESET
, 0, NULL
, HCI_INIT_TIMEOUT
);
1209 BT_ERR("%s sending initial HCI reset command failed (%ld)",
1210 hdev
->name
, PTR_ERR(skb
));
1211 return PTR_ERR(skb
);
1215 /* Read Intel specific controller version first to allow selection of
1216 * which firmware file to load.
1218 * The returned information are hardware variant and revision plus
1219 * firmware variant, revision and build number.
1221 skb
= __hci_cmd_sync(hdev
, 0xfc05, 0, NULL
, HCI_INIT_TIMEOUT
);
1223 BT_ERR("%s reading Intel fw version command failed (%ld)",
1224 hdev
->name
, PTR_ERR(skb
));
1225 return PTR_ERR(skb
);
1228 if (skb
->len
!= sizeof(*ver
)) {
1229 BT_ERR("%s Intel version event length mismatch", hdev
->name
);
1234 ver
= (struct intel_version
*)skb
->data
;
1236 BT_ERR("%s Intel fw version event failed (%02x)", hdev
->name
,
1239 return -bt_to_errno(ver
->status
);
1242 BT_INFO("%s: read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1243 hdev
->name
, ver
->hw_platform
, ver
->hw_variant
,
1244 ver
->hw_revision
, ver
->fw_variant
, ver
->fw_revision
,
1245 ver
->fw_build_num
, ver
->fw_build_ww
, ver
->fw_build_yy
,
1248 /* fw_patch_num indicates the version of patch the device currently
1249 * have. If there is no patch data in the device, it is always 0x00.
1250 * So, if it is other than 0x00, no need to patch the deivce again.
1252 if (ver
->fw_patch_num
) {
1253 BT_INFO("%s: Intel device is already patched. patch num: %02x",
1254 hdev
->name
, ver
->fw_patch_num
);
1259 /* Opens the firmware patch file based on the firmware version read
1260 * from the controller. If it fails to open the matching firmware
1261 * patch file, it tries to open the default firmware patch file.
1262 * If no patch file is found, allow the device to operate without
1265 fw
= btusb_setup_intel_get_fw(hdev
, ver
);
1272 /* This Intel specific command enables the manufacturer mode of the
1275 * Only while this mode is enabled, the driver can download the
1276 * firmware patch data and configuration parameters.
1278 skb
= __hci_cmd_sync(hdev
, 0xfc11, 2, mfg_enable
, HCI_INIT_TIMEOUT
);
1280 BT_ERR("%s entering Intel manufacturer mode failed (%ld)",
1281 hdev
->name
, PTR_ERR(skb
));
1282 release_firmware(fw
);
1283 return PTR_ERR(skb
);
1287 u8 evt_status
= skb
->data
[0];
1288 BT_ERR("%s enable Intel manufacturer mode event failed (%02x)",
1289 hdev
->name
, evt_status
);
1291 release_firmware(fw
);
1292 return -bt_to_errno(evt_status
);
1298 /* The firmware data file consists of list of Intel specific HCI
1299 * commands and its expected events. The first byte indicates the
1300 * type of the message, either HCI command or HCI event.
1302 * It reads the command and its expected event from the firmware file,
1303 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1304 * the returned event is compared with the event read from the firmware
1305 * file and it will continue until all the messages are downloaded to
1308 * Once the firmware patching is completed successfully,
1309 * the manufacturer mode is disabled with reset and activating the
1312 * If the firmware patching fails, the manufacturer mode is
1313 * disabled with reset and deactivating the patch.
1315 * If the default patch file is used, no reset is done when disabling
1318 while (fw
->size
> fw_ptr
- fw
->data
) {
1321 ret
= btusb_setup_intel_patching(hdev
, fw
, &fw_ptr
,
1324 goto exit_mfg_deactivate
;
1327 release_firmware(fw
);
1330 goto exit_mfg_disable
;
1332 /* Patching completed successfully and disable the manufacturer mode
1333 * with reset and activate the downloaded firmware patches.
1335 skb
= __hci_cmd_sync(hdev
, 0xfc11, sizeof(mfg_reset_activate
),
1336 mfg_reset_activate
, HCI_INIT_TIMEOUT
);
1338 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1339 hdev
->name
, PTR_ERR(skb
));
1340 return PTR_ERR(skb
);
1344 BT_INFO("%s: Intel Bluetooth firmware patch completed and activated",
1350 /* Disable the manufacturer mode without reset */
1351 skb
= __hci_cmd_sync(hdev
, 0xfc11, sizeof(mfg_disable
), mfg_disable
,
1354 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1355 hdev
->name
, PTR_ERR(skb
));
1356 return PTR_ERR(skb
);
1360 BT_INFO("%s: Intel Bluetooth firmware patch completed", hdev
->name
);
1363 exit_mfg_deactivate
:
1364 release_firmware(fw
);
1366 /* Patching failed. Disable the manufacturer mode with reset and
1367 * deactivate the downloaded firmware patches.
1369 skb
= __hci_cmd_sync(hdev
, 0xfc11, sizeof(mfg_reset_deactivate
),
1370 mfg_reset_deactivate
, HCI_INIT_TIMEOUT
);
1372 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1373 hdev
->name
, PTR_ERR(skb
));
1374 return PTR_ERR(skb
);
1378 BT_INFO("%s: Intel Bluetooth firmware patch completed and deactivated",
1384 static int btusb_probe(struct usb_interface
*intf
,
1385 const struct usb_device_id
*id
)
1387 struct usb_endpoint_descriptor
*ep_desc
;
1388 struct btusb_data
*data
;
1389 struct hci_dev
*hdev
;
1392 BT_DBG("intf %p id %p", intf
, id
);
1394 /* interface numbers are hardcoded in the spec */
1395 if (intf
->cur_altsetting
->desc
.bInterfaceNumber
!= 0)
1398 if (!id
->driver_info
) {
1399 const struct usb_device_id
*match
;
1400 match
= usb_match_id(intf
, blacklist_table
);
1405 if (id
->driver_info
== BTUSB_IGNORE
)
1408 if (ignore_dga
&& id
->driver_info
& BTUSB_DIGIANSWER
)
1411 if (ignore_csr
&& id
->driver_info
& BTUSB_CSR
)
1414 if (ignore_sniffer
&& id
->driver_info
& BTUSB_SNIFFER
)
1417 if (id
->driver_info
& BTUSB_ATH3012
) {
1418 struct usb_device
*udev
= interface_to_usbdev(intf
);
1420 /* Old firmware would otherwise let ath3k driver load
1421 * patch and sysconfig files */
1422 if (le16_to_cpu(udev
->descriptor
.bcdDevice
) <= 0x0001)
1426 data
= devm_kzalloc(&intf
->dev
, sizeof(*data
), GFP_KERNEL
);
1430 for (i
= 0; i
< intf
->cur_altsetting
->desc
.bNumEndpoints
; i
++) {
1431 ep_desc
= &intf
->cur_altsetting
->endpoint
[i
].desc
;
1433 if (!data
->intr_ep
&& usb_endpoint_is_int_in(ep_desc
)) {
1434 data
->intr_ep
= ep_desc
;
1438 if (!data
->bulk_tx_ep
&& usb_endpoint_is_bulk_out(ep_desc
)) {
1439 data
->bulk_tx_ep
= ep_desc
;
1443 if (!data
->bulk_rx_ep
&& usb_endpoint_is_bulk_in(ep_desc
)) {
1444 data
->bulk_rx_ep
= ep_desc
;
1449 if (!data
->intr_ep
|| !data
->bulk_tx_ep
|| !data
->bulk_rx_ep
)
1452 data
->cmdreq_type
= USB_TYPE_CLASS
;
1454 data
->udev
= interface_to_usbdev(intf
);
1457 spin_lock_init(&data
->lock
);
1459 INIT_WORK(&data
->work
, btusb_work
);
1460 INIT_WORK(&data
->waker
, btusb_waker
);
1461 spin_lock_init(&data
->txlock
);
1463 init_usb_anchor(&data
->tx_anchor
);
1464 init_usb_anchor(&data
->intr_anchor
);
1465 init_usb_anchor(&data
->bulk_anchor
);
1466 init_usb_anchor(&data
->isoc_anchor
);
1467 init_usb_anchor(&data
->deferred
);
1469 hdev
= hci_alloc_dev();
1473 hdev
->bus
= HCI_USB
;
1474 hci_set_drvdata(hdev
, data
);
1478 SET_HCIDEV_DEV(hdev
, &intf
->dev
);
1480 hdev
->open
= btusb_open
;
1481 hdev
->close
= btusb_close
;
1482 hdev
->flush
= btusb_flush
;
1483 hdev
->send
= btusb_send_frame
;
1484 hdev
->notify
= btusb_notify
;
1486 if (id
->driver_info
& BTUSB_BCM92035
)
1487 hdev
->setup
= btusb_setup_bcm92035
;
1489 if (id
->driver_info
& BTUSB_INTEL
)
1490 hdev
->setup
= btusb_setup_intel
;
1492 /* Interface numbers are hardcoded in the specification */
1493 data
->isoc
= usb_ifnum_to_if(data
->udev
, 1);
1496 set_bit(HCI_QUIRK_RESET_ON_CLOSE
, &hdev
->quirks
);
1498 if (force_scofix
|| id
->driver_info
& BTUSB_WRONG_SCO_MTU
) {
1499 if (!disable_scofix
)
1500 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE
, &hdev
->quirks
);
1503 if (id
->driver_info
& BTUSB_BROKEN_ISOC
)
1506 if (id
->driver_info
& BTUSB_DIGIANSWER
) {
1507 data
->cmdreq_type
= USB_TYPE_VENDOR
;
1508 set_bit(HCI_QUIRK_RESET_ON_CLOSE
, &hdev
->quirks
);
1511 if (id
->driver_info
& BTUSB_CSR
) {
1512 struct usb_device
*udev
= data
->udev
;
1513 u16 bcdDevice
= le16_to_cpu(udev
->descriptor
.bcdDevice
);
1515 /* Old firmware would otherwise execute USB reset */
1516 if (bcdDevice
< 0x117)
1517 set_bit(HCI_QUIRK_RESET_ON_CLOSE
, &hdev
->quirks
);
1519 /* Fake CSR devices with broken commands */
1520 if (bcdDevice
<= 0x100)
1521 hdev
->setup
= btusb_setup_csr
;
1524 if (id
->driver_info
& BTUSB_SNIFFER
) {
1525 struct usb_device
*udev
= data
->udev
;
1527 /* New sniffer firmware has crippled HCI interface */
1528 if (le16_to_cpu(udev
->descriptor
.bcdDevice
) > 0x997)
1529 set_bit(HCI_QUIRK_RAW_DEVICE
, &hdev
->quirks
);
1535 err
= usb_driver_claim_interface(&btusb_driver
,
1543 err
= hci_register_dev(hdev
);
1549 usb_set_intfdata(intf
, data
);
1554 static void btusb_disconnect(struct usb_interface
*intf
)
1556 struct btusb_data
*data
= usb_get_intfdata(intf
);
1557 struct hci_dev
*hdev
;
1559 BT_DBG("intf %p", intf
);
1565 usb_set_intfdata(data
->intf
, NULL
);
1568 usb_set_intfdata(data
->isoc
, NULL
);
1570 hci_unregister_dev(hdev
);
1572 if (intf
== data
->isoc
)
1573 usb_driver_release_interface(&btusb_driver
, data
->intf
);
1574 else if (data
->isoc
)
1575 usb_driver_release_interface(&btusb_driver
, data
->isoc
);
1581 static int btusb_suspend(struct usb_interface
*intf
, pm_message_t message
)
1583 struct btusb_data
*data
= usb_get_intfdata(intf
);
1585 BT_DBG("intf %p", intf
);
1587 if (data
->suspend_count
++)
1590 spin_lock_irq(&data
->txlock
);
1591 if (!(PMSG_IS_AUTO(message
) && data
->tx_in_flight
)) {
1592 set_bit(BTUSB_SUSPENDING
, &data
->flags
);
1593 spin_unlock_irq(&data
->txlock
);
1595 spin_unlock_irq(&data
->txlock
);
1596 data
->suspend_count
--;
1600 cancel_work_sync(&data
->work
);
1602 btusb_stop_traffic(data
);
1603 usb_kill_anchored_urbs(&data
->tx_anchor
);
1608 static void play_deferred(struct btusb_data
*data
)
1613 while ((urb
= usb_get_from_anchor(&data
->deferred
))) {
1614 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
1618 data
->tx_in_flight
++;
1620 usb_scuttle_anchored_urbs(&data
->deferred
);
1623 static int btusb_resume(struct usb_interface
*intf
)
1625 struct btusb_data
*data
= usb_get_intfdata(intf
);
1626 struct hci_dev
*hdev
= data
->hdev
;
1629 BT_DBG("intf %p", intf
);
1631 if (--data
->suspend_count
)
1634 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
1637 if (test_bit(BTUSB_INTR_RUNNING
, &data
->flags
)) {
1638 err
= btusb_submit_intr_urb(hdev
, GFP_NOIO
);
1640 clear_bit(BTUSB_INTR_RUNNING
, &data
->flags
);
1645 if (test_bit(BTUSB_BULK_RUNNING
, &data
->flags
)) {
1646 err
= btusb_submit_bulk_urb(hdev
, GFP_NOIO
);
1648 clear_bit(BTUSB_BULK_RUNNING
, &data
->flags
);
1652 btusb_submit_bulk_urb(hdev
, GFP_NOIO
);
1655 if (test_bit(BTUSB_ISOC_RUNNING
, &data
->flags
)) {
1656 if (btusb_submit_isoc_urb(hdev
, GFP_NOIO
) < 0)
1657 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
1659 btusb_submit_isoc_urb(hdev
, GFP_NOIO
);
1662 spin_lock_irq(&data
->txlock
);
1663 play_deferred(data
);
1664 clear_bit(BTUSB_SUSPENDING
, &data
->flags
);
1665 spin_unlock_irq(&data
->txlock
);
1666 schedule_work(&data
->work
);
1671 usb_scuttle_anchored_urbs(&data
->deferred
);
1673 spin_lock_irq(&data
->txlock
);
1674 clear_bit(BTUSB_SUSPENDING
, &data
->flags
);
1675 spin_unlock_irq(&data
->txlock
);
1681 static struct usb_driver btusb_driver
= {
1683 .probe
= btusb_probe
,
1684 .disconnect
= btusb_disconnect
,
1686 .suspend
= btusb_suspend
,
1687 .resume
= btusb_resume
,
1689 .id_table
= btusb_table
,
1690 .supports_autosuspend
= 1,
1691 .disable_hub_initiated_lpm
= 1,
1694 module_usb_driver(btusb_driver
);
1696 module_param(ignore_dga
, bool, 0644);
1697 MODULE_PARM_DESC(ignore_dga
, "Ignore devices with id 08fd:0001");
1699 module_param(ignore_csr
, bool, 0644);
1700 MODULE_PARM_DESC(ignore_csr
, "Ignore devices with id 0a12:0001");
1702 module_param(ignore_sniffer
, bool, 0644);
1703 MODULE_PARM_DESC(ignore_sniffer
, "Ignore devices with id 0a12:0002");
1705 module_param(disable_scofix
, bool, 0644);
1706 MODULE_PARM_DESC(disable_scofix
, "Disable fixup of wrong SCO buffer size");
1708 module_param(force_scofix
, bool, 0644);
1709 MODULE_PARM_DESC(force_scofix
, "Force fixup of wrong SCO buffers size");
1711 module_param(reset
, bool, 0644);
1712 MODULE_PARM_DESC(reset
, "Send HCI reset command on initialization");
1714 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1715 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION
);
1716 MODULE_VERSION(VERSION
);
1717 MODULE_LICENSE("GPL");