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/kernel.h>
25 #include <linux/module.h>
26 #include <linux/init.h>
27 #include <linux/slab.h>
28 #include <linux/types.h>
29 #include <linux/sched.h>
30 #include <linux/errno.h>
31 #include <linux/skbuff.h>
33 #include <linux/usb.h>
35 #include <net/bluetooth/bluetooth.h>
36 #include <net/bluetooth/hci_core.h>
40 static int ignore_dga
;
41 static int ignore_csr
;
42 static int ignore_sniffer
;
43 static int disable_scofix
;
44 static int force_scofix
;
48 static struct usb_driver btusb_driver
;
50 #define BTUSB_IGNORE 0x01
51 #define BTUSB_DIGIANSWER 0x02
52 #define BTUSB_CSR 0x04
53 #define BTUSB_SNIFFER 0x08
54 #define BTUSB_BCM92035 0x10
55 #define BTUSB_BROKEN_ISOC 0x20
56 #define BTUSB_WRONG_SCO_MTU 0x40
57 #define BTUSB_ATH3012 0x80
59 static struct usb_device_id btusb_table
[] = {
60 /* Generic Bluetooth USB device */
61 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
63 /* Apple-specific (Broadcom) devices */
64 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01) },
66 /* MediaTek MT76x0E */
67 { USB_DEVICE(0x0e8d, 0x763f) },
69 /* Broadcom SoftSailing reporting vendor specific */
70 { USB_DEVICE(0x0a5c, 0x21e1) },
72 /* Apple MacBookPro 7,1 */
73 { USB_DEVICE(0x05ac, 0x8213) },
76 { USB_DEVICE(0x05ac, 0x8215) },
78 /* Apple MacBookPro6,2 */
79 { USB_DEVICE(0x05ac, 0x8218) },
81 /* Apple MacBookAir3,1, MacBookAir3,2 */
82 { USB_DEVICE(0x05ac, 0x821b) },
84 /* Apple MacBookAir4,1 */
85 { USB_DEVICE(0x05ac, 0x821f) },
87 /* Apple MacBookPro8,2 */
88 { USB_DEVICE(0x05ac, 0x821a) },
90 /* Apple MacMini5,1 */
91 { USB_DEVICE(0x05ac, 0x8281) },
93 /* AVM BlueFRITZ! USB v2.0 */
94 { USB_DEVICE(0x057c, 0x3800) },
96 /* Bluetooth Ultraport Module from IBM */
97 { USB_DEVICE(0x04bf, 0x030a) },
99 /* ALPS Modules with non-standard id */
100 { USB_DEVICE(0x044e, 0x3001) },
101 { USB_DEVICE(0x044e, 0x3002) },
103 /* Ericsson with non-standard id */
104 { USB_DEVICE(0x0bdb, 0x1002) },
106 /* Canyon CN-BTU1 with HID interfaces */
107 { USB_DEVICE(0x0c10, 0x0000) },
109 /* Broadcom BCM20702A0 */
110 { USB_DEVICE(0x0b05, 0x17b5) },
111 { USB_DEVICE(0x0b05, 0x17cb) },
112 { USB_DEVICE(0x04ca, 0x2003) },
113 { USB_DEVICE(0x0489, 0xe042) },
114 { USB_DEVICE(0x413c, 0x8197) },
116 /* Foxconn - Hon Hai */
117 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01) },
119 /*Broadcom devices with vendor specific id */
120 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01) },
122 { } /* Terminating entry */
125 MODULE_DEVICE_TABLE(usb
, btusb_table
);
127 static 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(0x0cf3, 0x3002), .driver_info
= BTUSB_IGNORE
},
136 { USB_DEVICE(0x0cf3, 0xe019), .driver_info
= BTUSB_IGNORE
},
137 { USB_DEVICE(0x13d3, 0x3304), .driver_info
= BTUSB_IGNORE
},
138 { USB_DEVICE(0x0930, 0x0215), .driver_info
= BTUSB_IGNORE
},
139 { USB_DEVICE(0x0489, 0xe03d), .driver_info
= BTUSB_IGNORE
},
140 { USB_DEVICE(0x0489, 0xe027), .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(0x0cf3, 0x0036), .driver_info
= BTUSB_ATH3012
},
147 { USB_DEVICE(0x0cf3, 0x3004), .driver_info
= BTUSB_ATH3012
},
148 { USB_DEVICE(0x0cf3, 0x3008), .driver_info
= BTUSB_ATH3012
},
149 { USB_DEVICE(0x0cf3, 0x311d), .driver_info
= BTUSB_ATH3012
},
150 { USB_DEVICE(0x0cf3, 0x817a), .driver_info
= BTUSB_ATH3012
},
151 { USB_DEVICE(0x13d3, 0x3375), .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(0x13d3, 0x3362), .driver_info
= BTUSB_ATH3012
},
158 { USB_DEVICE(0x0cf3, 0xe004), .driver_info
= BTUSB_ATH3012
},
159 { USB_DEVICE(0x0cf3, 0xe005), .driver_info
= BTUSB_ATH3012
},
160 { USB_DEVICE(0x0930, 0x0219), .driver_info
= BTUSB_ATH3012
},
161 { USB_DEVICE(0x0489, 0xe057), .driver_info
= BTUSB_ATH3012
},
162 { USB_DEVICE(0x13d3, 0x3393), .driver_info
= BTUSB_ATH3012
},
163 { USB_DEVICE(0x0489, 0xe04e), .driver_info
= BTUSB_ATH3012
},
164 { USB_DEVICE(0x0489, 0xe056), .driver_info
= BTUSB_ATH3012
},
165 { USB_DEVICE(0x0489, 0xe04d), .driver_info
= BTUSB_ATH3012
},
166 { USB_DEVICE(0x04c5, 0x1330), .driver_info
= BTUSB_ATH3012
},
167 { USB_DEVICE(0x13d3, 0x3402), .driver_info
= BTUSB_ATH3012
},
168 { USB_DEVICE(0x0cf3, 0x3121), .driver_info
= BTUSB_ATH3012
},
169 { USB_DEVICE(0x0cf3, 0xe003), .driver_info
= BTUSB_ATH3012
},
171 /* Atheros AR5BBU12 with sflash firmware */
172 { USB_DEVICE(0x0489, 0xe02c), .driver_info
= BTUSB_IGNORE
},
174 /* Atheros AR5BBU12 with sflash firmware */
175 { USB_DEVICE(0x0489, 0xe03c), .driver_info
= BTUSB_ATH3012
},
176 { USB_DEVICE(0x0489, 0xe036), .driver_info
= BTUSB_ATH3012
},
178 /* Broadcom BCM2035 */
179 { USB_DEVICE(0x0a5c, 0x2035), .driver_info
= BTUSB_WRONG_SCO_MTU
},
180 { USB_DEVICE(0x0a5c, 0x200a), .driver_info
= BTUSB_WRONG_SCO_MTU
},
181 { USB_DEVICE(0x0a5c, 0x2009), .driver_info
= BTUSB_BCM92035
},
183 /* Broadcom BCM2045 */
184 { USB_DEVICE(0x0a5c, 0x2039), .driver_info
= BTUSB_WRONG_SCO_MTU
},
185 { USB_DEVICE(0x0a5c, 0x2101), .driver_info
= BTUSB_WRONG_SCO_MTU
},
187 /* IBM/Lenovo ThinkPad with Broadcom chip */
188 { USB_DEVICE(0x0a5c, 0x201e), .driver_info
= BTUSB_WRONG_SCO_MTU
},
189 { USB_DEVICE(0x0a5c, 0x2110), .driver_info
= BTUSB_WRONG_SCO_MTU
},
191 /* HP laptop with Broadcom chip */
192 { USB_DEVICE(0x03f0, 0x171d), .driver_info
= BTUSB_WRONG_SCO_MTU
},
194 /* Dell laptop with Broadcom chip */
195 { USB_DEVICE(0x413c, 0x8126), .driver_info
= BTUSB_WRONG_SCO_MTU
},
197 /* Dell Wireless 370 and 410 devices */
198 { USB_DEVICE(0x413c, 0x8152), .driver_info
= BTUSB_WRONG_SCO_MTU
},
199 { USB_DEVICE(0x413c, 0x8156), .driver_info
= BTUSB_WRONG_SCO_MTU
},
201 /* Belkin F8T012 and F8T013 devices */
202 { USB_DEVICE(0x050d, 0x0012), .driver_info
= BTUSB_WRONG_SCO_MTU
},
203 { USB_DEVICE(0x050d, 0x0013), .driver_info
= BTUSB_WRONG_SCO_MTU
},
205 /* Asus WL-BTD202 device */
206 { USB_DEVICE(0x0b05, 0x1715), .driver_info
= BTUSB_WRONG_SCO_MTU
},
208 /* Kensington Bluetooth USB adapter */
209 { USB_DEVICE(0x047d, 0x105e), .driver_info
= BTUSB_WRONG_SCO_MTU
},
211 /* RTX Telecom based adapters with buggy SCO support */
212 { USB_DEVICE(0x0400, 0x0807), .driver_info
= BTUSB_BROKEN_ISOC
},
213 { USB_DEVICE(0x0400, 0x080a), .driver_info
= BTUSB_BROKEN_ISOC
},
215 /* CONWISE Technology based adapters with buggy SCO support */
216 { USB_DEVICE(0x0e5e, 0x6622), .driver_info
= BTUSB_BROKEN_ISOC
},
218 /* Digianswer devices */
219 { USB_DEVICE(0x08fd, 0x0001), .driver_info
= BTUSB_DIGIANSWER
},
220 { USB_DEVICE(0x08fd, 0x0002), .driver_info
= BTUSB_IGNORE
},
222 /* CSR BlueCore Bluetooth Sniffer */
223 { USB_DEVICE(0x0a12, 0x0002), .driver_info
= BTUSB_SNIFFER
},
225 /* Frontline ComProbe Bluetooth Sniffer */
226 { USB_DEVICE(0x16d3, 0x0002), .driver_info
= BTUSB_SNIFFER
},
228 { } /* Terminating entry */
231 #define BTUSB_MAX_ISOC_FRAMES 10
233 #define BTUSB_INTR_RUNNING 0
234 #define BTUSB_BULK_RUNNING 1
235 #define BTUSB_ISOC_RUNNING 2
236 #define BTUSB_SUSPENDING 3
237 #define BTUSB_DID_ISO_RESUME 4
240 struct hci_dev
*hdev
;
241 struct usb_device
*udev
;
242 struct usb_interface
*intf
;
243 struct usb_interface
*isoc
;
249 struct work_struct work
;
250 struct work_struct waker
;
252 struct usb_anchor tx_anchor
;
253 struct usb_anchor intr_anchor
;
254 struct usb_anchor bulk_anchor
;
255 struct usb_anchor isoc_anchor
;
256 struct usb_anchor deferred
;
260 struct usb_endpoint_descriptor
*intr_ep
;
261 struct usb_endpoint_descriptor
*bulk_tx_ep
;
262 struct usb_endpoint_descriptor
*bulk_rx_ep
;
263 struct usb_endpoint_descriptor
*isoc_tx_ep
;
264 struct usb_endpoint_descriptor
*isoc_rx_ep
;
268 unsigned int sco_num
;
273 static int inc_tx(struct btusb_data
*data
)
278 spin_lock_irqsave(&data
->txlock
, flags
);
279 rv
= test_bit(BTUSB_SUSPENDING
, &data
->flags
);
281 data
->tx_in_flight
++;
282 spin_unlock_irqrestore(&data
->txlock
, flags
);
287 static void btusb_intr_complete(struct urb
*urb
)
289 struct hci_dev
*hdev
= urb
->context
;
290 struct btusb_data
*data
= hdev
->driver_data
;
293 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
294 urb
, urb
->status
, urb
->actual_length
);
296 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
299 if (urb
->status
== 0) {
300 hdev
->stat
.byte_rx
+= urb
->actual_length
;
302 if (hci_recv_fragment(hdev
, HCI_EVENT_PKT
,
303 urb
->transfer_buffer
,
304 urb
->actual_length
) < 0) {
305 BT_ERR("%s corrupted event packet", hdev
->name
);
308 } else if (urb
->status
== -ENOENT
) {
309 /* Avoid suspend failed when usb_kill_urb */
313 if (!test_bit(BTUSB_INTR_RUNNING
, &data
->flags
))
316 usb_mark_last_busy(data
->udev
);
317 usb_anchor_urb(urb
, &data
->intr_anchor
);
319 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
321 /* -EPERM: urb is being killed;
322 * -ENODEV: device got disconnected */
323 if (err
!= -EPERM
&& err
!= -ENODEV
)
324 BT_ERR("%s urb %p failed to resubmit (%d)",
325 hdev
->name
, urb
, -err
);
326 usb_unanchor_urb(urb
);
330 static int btusb_submit_intr_urb(struct hci_dev
*hdev
, gfp_t mem_flags
)
332 struct btusb_data
*data
= hdev
->driver_data
;
338 BT_DBG("%s", hdev
->name
);
343 urb
= usb_alloc_urb(0, mem_flags
);
347 size
= le16_to_cpu(data
->intr_ep
->wMaxPacketSize
);
349 buf
= kmalloc(size
, mem_flags
);
355 pipe
= usb_rcvintpipe(data
->udev
, data
->intr_ep
->bEndpointAddress
);
357 usb_fill_int_urb(urb
, data
->udev
, pipe
, buf
, size
,
358 btusb_intr_complete
, hdev
,
359 data
->intr_ep
->bInterval
);
361 urb
->transfer_flags
|= URB_FREE_BUFFER
;
363 usb_anchor_urb(urb
, &data
->intr_anchor
);
365 err
= usb_submit_urb(urb
, mem_flags
);
367 BT_ERR("%s urb %p submission failed (%d)",
368 hdev
->name
, urb
, -err
);
369 usb_unanchor_urb(urb
);
377 static void btusb_bulk_complete(struct urb
*urb
)
379 struct hci_dev
*hdev
= urb
->context
;
380 struct btusb_data
*data
= hdev
->driver_data
;
383 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
384 urb
, urb
->status
, urb
->actual_length
);
386 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
389 if (urb
->status
== 0) {
390 hdev
->stat
.byte_rx
+= urb
->actual_length
;
392 if (hci_recv_fragment(hdev
, HCI_ACLDATA_PKT
,
393 urb
->transfer_buffer
,
394 urb
->actual_length
) < 0) {
395 BT_ERR("%s corrupted ACL packet", hdev
->name
);
398 } else if (urb
->status
== -ENOENT
) {
399 /* Avoid suspend failed when usb_kill_urb */
403 if (!test_bit(BTUSB_BULK_RUNNING
, &data
->flags
))
406 usb_anchor_urb(urb
, &data
->bulk_anchor
);
407 usb_mark_last_busy(data
->udev
);
409 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
411 /* -EPERM: urb is being killed;
412 * -ENODEV: device got disconnected */
413 if (err
!= -EPERM
&& err
!= -ENODEV
)
414 BT_ERR("%s urb %p failed to resubmit (%d)",
415 hdev
->name
, urb
, -err
);
416 usb_unanchor_urb(urb
);
420 static int btusb_submit_bulk_urb(struct hci_dev
*hdev
, gfp_t mem_flags
)
422 struct btusb_data
*data
= hdev
->driver_data
;
426 int err
, size
= HCI_MAX_FRAME_SIZE
;
428 BT_DBG("%s", hdev
->name
);
430 if (!data
->bulk_rx_ep
)
433 urb
= usb_alloc_urb(0, mem_flags
);
437 buf
= kmalloc(size
, mem_flags
);
443 pipe
= usb_rcvbulkpipe(data
->udev
, data
->bulk_rx_ep
->bEndpointAddress
);
445 usb_fill_bulk_urb(urb
, data
->udev
, pipe
,
446 buf
, size
, btusb_bulk_complete
, hdev
);
448 urb
->transfer_flags
|= URB_FREE_BUFFER
;
450 usb_mark_last_busy(data
->udev
);
451 usb_anchor_urb(urb
, &data
->bulk_anchor
);
453 err
= usb_submit_urb(urb
, mem_flags
);
455 BT_ERR("%s urb %p submission failed (%d)",
456 hdev
->name
, urb
, -err
);
457 usb_unanchor_urb(urb
);
465 static void btusb_isoc_complete(struct urb
*urb
)
467 struct hci_dev
*hdev
= urb
->context
;
468 struct btusb_data
*data
= hdev
->driver_data
;
471 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
472 urb
, urb
->status
, urb
->actual_length
);
474 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
477 if (urb
->status
== 0) {
478 for (i
= 0; i
< urb
->number_of_packets
; i
++) {
479 unsigned int offset
= urb
->iso_frame_desc
[i
].offset
;
480 unsigned int length
= urb
->iso_frame_desc
[i
].actual_length
;
482 if (urb
->iso_frame_desc
[i
].status
)
485 hdev
->stat
.byte_rx
+= length
;
487 if (hci_recv_fragment(hdev
, HCI_SCODATA_PKT
,
488 urb
->transfer_buffer
+ offset
,
490 BT_ERR("%s corrupted SCO packet", hdev
->name
);
494 } else if (urb
->status
== -ENOENT
) {
495 /* Avoid suspend failed when usb_kill_urb */
499 if (!test_bit(BTUSB_ISOC_RUNNING
, &data
->flags
))
502 usb_anchor_urb(urb
, &data
->isoc_anchor
);
504 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
506 /* -EPERM: urb is being killed;
507 * -ENODEV: device got disconnected */
508 if (err
!= -EPERM
&& err
!= -ENODEV
)
509 BT_ERR("%s urb %p failed to resubmit (%d)",
510 hdev
->name
, urb
, -err
);
511 usb_unanchor_urb(urb
);
515 static inline void __fill_isoc_descriptor(struct urb
*urb
, int len
, int mtu
)
519 BT_DBG("len %d mtu %d", len
, mtu
);
521 for (i
= 0; i
< BTUSB_MAX_ISOC_FRAMES
&& len
>= mtu
;
522 i
++, offset
+= mtu
, len
-= mtu
) {
523 urb
->iso_frame_desc
[i
].offset
= offset
;
524 urb
->iso_frame_desc
[i
].length
= mtu
;
527 if (len
&& i
< BTUSB_MAX_ISOC_FRAMES
) {
528 urb
->iso_frame_desc
[i
].offset
= offset
;
529 urb
->iso_frame_desc
[i
].length
= len
;
533 urb
->number_of_packets
= i
;
536 static int btusb_submit_isoc_urb(struct hci_dev
*hdev
, gfp_t mem_flags
)
538 struct btusb_data
*data
= hdev
->driver_data
;
544 BT_DBG("%s", hdev
->name
);
546 if (!data
->isoc_rx_ep
)
549 urb
= usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES
, mem_flags
);
553 size
= le16_to_cpu(data
->isoc_rx_ep
->wMaxPacketSize
) *
554 BTUSB_MAX_ISOC_FRAMES
;
556 buf
= kmalloc(size
, mem_flags
);
562 pipe
= usb_rcvisocpipe(data
->udev
, data
->isoc_rx_ep
->bEndpointAddress
);
564 usb_fill_int_urb(urb
, data
->udev
, pipe
, buf
, size
, btusb_isoc_complete
,
565 hdev
, data
->isoc_rx_ep
->bInterval
);
567 urb
->transfer_flags
= URB_FREE_BUFFER
| URB_ISO_ASAP
;
569 __fill_isoc_descriptor(urb
, size
,
570 le16_to_cpu(data
->isoc_rx_ep
->wMaxPacketSize
));
572 usb_anchor_urb(urb
, &data
->isoc_anchor
);
574 err
= usb_submit_urb(urb
, mem_flags
);
576 BT_ERR("%s urb %p submission failed (%d)",
577 hdev
->name
, urb
, -err
);
578 usb_unanchor_urb(urb
);
586 static void btusb_tx_complete(struct urb
*urb
)
588 struct sk_buff
*skb
= urb
->context
;
589 struct hci_dev
*hdev
= (struct hci_dev
*) skb
->dev
;
590 struct btusb_data
*data
= hdev
->driver_data
;
592 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
593 urb
, urb
->status
, urb
->actual_length
);
595 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
599 hdev
->stat
.byte_tx
+= urb
->transfer_buffer_length
;
604 spin_lock(&data
->txlock
);
605 data
->tx_in_flight
--;
606 spin_unlock(&data
->txlock
);
608 kfree(urb
->setup_packet
);
613 static void btusb_isoc_tx_complete(struct urb
*urb
)
615 struct sk_buff
*skb
= urb
->context
;
616 struct hci_dev
*hdev
= (struct hci_dev
*) skb
->dev
;
618 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
619 urb
, urb
->status
, urb
->actual_length
);
621 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
625 hdev
->stat
.byte_tx
+= urb
->transfer_buffer_length
;
630 kfree(urb
->setup_packet
);
635 static int btusb_open(struct hci_dev
*hdev
)
637 struct btusb_data
*data
= hdev
->driver_data
;
640 BT_DBG("%s", hdev
->name
);
642 err
= usb_autopm_get_interface(data
->intf
);
646 data
->intf
->needs_remote_wakeup
= 1;
648 if (test_and_set_bit(HCI_RUNNING
, &hdev
->flags
))
651 if (test_and_set_bit(BTUSB_INTR_RUNNING
, &data
->flags
))
654 err
= btusb_submit_intr_urb(hdev
, GFP_KERNEL
);
658 err
= btusb_submit_bulk_urb(hdev
, GFP_KERNEL
);
660 usb_kill_anchored_urbs(&data
->intr_anchor
);
664 set_bit(BTUSB_BULK_RUNNING
, &data
->flags
);
665 btusb_submit_bulk_urb(hdev
, GFP_KERNEL
);
668 usb_autopm_put_interface(data
->intf
);
672 clear_bit(BTUSB_INTR_RUNNING
, &data
->flags
);
673 clear_bit(HCI_RUNNING
, &hdev
->flags
);
674 usb_autopm_put_interface(data
->intf
);
678 static void btusb_stop_traffic(struct btusb_data
*data
)
680 usb_kill_anchored_urbs(&data
->intr_anchor
);
681 usb_kill_anchored_urbs(&data
->bulk_anchor
);
682 usb_kill_anchored_urbs(&data
->isoc_anchor
);
685 static int btusb_close(struct hci_dev
*hdev
)
687 struct btusb_data
*data
= hdev
->driver_data
;
690 BT_DBG("%s", hdev
->name
);
692 if (!test_and_clear_bit(HCI_RUNNING
, &hdev
->flags
))
695 cancel_work_sync(&data
->work
);
696 cancel_work_sync(&data
->waker
);
698 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
699 clear_bit(BTUSB_BULK_RUNNING
, &data
->flags
);
700 clear_bit(BTUSB_INTR_RUNNING
, &data
->flags
);
702 btusb_stop_traffic(data
);
703 err
= usb_autopm_get_interface(data
->intf
);
707 data
->intf
->needs_remote_wakeup
= 0;
708 usb_autopm_put_interface(data
->intf
);
711 usb_scuttle_anchored_urbs(&data
->deferred
);
715 static int btusb_flush(struct hci_dev
*hdev
)
717 struct btusb_data
*data
= hdev
->driver_data
;
719 BT_DBG("%s", hdev
->name
);
721 usb_kill_anchored_urbs(&data
->tx_anchor
);
726 static int btusb_send_frame(struct sk_buff
*skb
)
728 struct hci_dev
*hdev
= (struct hci_dev
*) skb
->dev
;
729 struct btusb_data
*data
= hdev
->driver_data
;
730 struct usb_ctrlrequest
*dr
;
735 BT_DBG("%s", hdev
->name
);
737 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
740 switch (bt_cb(skb
)->pkt_type
) {
741 case HCI_COMMAND_PKT
:
742 urb
= usb_alloc_urb(0, GFP_ATOMIC
);
746 dr
= kmalloc(sizeof(*dr
), GFP_ATOMIC
);
752 dr
->bRequestType
= data
->cmdreq_type
;
756 dr
->wLength
= __cpu_to_le16(skb
->len
);
758 pipe
= usb_sndctrlpipe(data
->udev
, 0x00);
760 usb_fill_control_urb(urb
, data
->udev
, pipe
, (void *) dr
,
761 skb
->data
, skb
->len
, btusb_tx_complete
, skb
);
766 case HCI_ACLDATA_PKT
:
767 if (!data
->bulk_tx_ep
)
770 urb
= usb_alloc_urb(0, GFP_ATOMIC
);
774 pipe
= usb_sndbulkpipe(data
->udev
,
775 data
->bulk_tx_ep
->bEndpointAddress
);
777 usb_fill_bulk_urb(urb
, data
->udev
, pipe
,
778 skb
->data
, skb
->len
, btusb_tx_complete
, skb
);
783 case HCI_SCODATA_PKT
:
784 if (!data
->isoc_tx_ep
|| hdev
->conn_hash
.sco_num
< 1)
787 urb
= usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES
, GFP_ATOMIC
);
791 pipe
= usb_sndisocpipe(data
->udev
,
792 data
->isoc_tx_ep
->bEndpointAddress
);
794 usb_fill_int_urb(urb
, data
->udev
, pipe
,
795 skb
->data
, skb
->len
, btusb_isoc_tx_complete
,
796 skb
, data
->isoc_tx_ep
->bInterval
);
798 urb
->transfer_flags
= URB_ISO_ASAP
;
800 __fill_isoc_descriptor(urb
, skb
->len
,
801 le16_to_cpu(data
->isoc_tx_ep
->wMaxPacketSize
));
812 usb_anchor_urb(urb
, &data
->deferred
);
813 schedule_work(&data
->waker
);
819 usb_anchor_urb(urb
, &data
->tx_anchor
);
821 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
823 BT_ERR("%s urb %p submission failed", hdev
->name
, urb
);
824 kfree(urb
->setup_packet
);
825 usb_unanchor_urb(urb
);
827 usb_mark_last_busy(data
->udev
);
835 static void btusb_destruct(struct hci_dev
*hdev
)
837 struct btusb_data
*data
= hdev
->driver_data
;
839 BT_DBG("%s", hdev
->name
);
844 static void btusb_notify(struct hci_dev
*hdev
, unsigned int evt
)
846 struct btusb_data
*data
= hdev
->driver_data
;
848 BT_DBG("%s evt %d", hdev
->name
, evt
);
850 if (hdev
->conn_hash
.sco_num
!= data
->sco_num
) {
851 data
->sco_num
= hdev
->conn_hash
.sco_num
;
852 schedule_work(&data
->work
);
856 static inline int __set_isoc_interface(struct hci_dev
*hdev
, int altsetting
)
858 struct btusb_data
*data
= hdev
->driver_data
;
859 struct usb_interface
*intf
= data
->isoc
;
860 struct usb_endpoint_descriptor
*ep_desc
;
866 err
= usb_set_interface(data
->udev
, 1, altsetting
);
868 BT_ERR("%s setting interface failed (%d)", hdev
->name
, -err
);
872 data
->isoc_altsetting
= altsetting
;
874 data
->isoc_tx_ep
= NULL
;
875 data
->isoc_rx_ep
= NULL
;
877 for (i
= 0; i
< intf
->cur_altsetting
->desc
.bNumEndpoints
; i
++) {
878 ep_desc
= &intf
->cur_altsetting
->endpoint
[i
].desc
;
880 if (!data
->isoc_tx_ep
&& usb_endpoint_is_isoc_out(ep_desc
)) {
881 data
->isoc_tx_ep
= ep_desc
;
885 if (!data
->isoc_rx_ep
&& usb_endpoint_is_isoc_in(ep_desc
)) {
886 data
->isoc_rx_ep
= ep_desc
;
891 if (!data
->isoc_tx_ep
|| !data
->isoc_rx_ep
) {
892 BT_ERR("%s invalid SCO descriptors", hdev
->name
);
899 static void btusb_work(struct work_struct
*work
)
901 struct btusb_data
*data
= container_of(work
, struct btusb_data
, work
);
902 struct hci_dev
*hdev
= data
->hdev
;
905 if (hdev
->conn_hash
.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
);
916 if (data
->isoc_altsetting
!= 2) {
917 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
918 usb_kill_anchored_urbs(&data
->isoc_anchor
);
920 if (__set_isoc_interface(hdev
, 2) < 0)
924 if (!test_and_set_bit(BTUSB_ISOC_RUNNING
, &data
->flags
)) {
925 if (btusb_submit_isoc_urb(hdev
, GFP_KERNEL
) < 0)
926 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
928 btusb_submit_isoc_urb(hdev
, GFP_KERNEL
);
931 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
932 usb_kill_anchored_urbs(&data
->isoc_anchor
);
934 __set_isoc_interface(hdev
, 0);
935 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME
, &data
->flags
))
936 usb_autopm_put_interface(data
->isoc
? data
->isoc
: data
->intf
);
940 static void btusb_waker(struct work_struct
*work
)
942 struct btusb_data
*data
= container_of(work
, struct btusb_data
, waker
);
945 err
= usb_autopm_get_interface(data
->intf
);
949 usb_autopm_put_interface(data
->intf
);
952 static int btusb_probe(struct usb_interface
*intf
,
953 const struct usb_device_id
*id
)
955 struct usb_endpoint_descriptor
*ep_desc
;
956 struct btusb_data
*data
;
957 struct hci_dev
*hdev
;
960 BT_DBG("intf %p id %p", intf
, id
);
962 /* interface numbers are hardcoded in the spec */
963 if (intf
->cur_altsetting
->desc
.bInterfaceNumber
!= 0)
966 if (!id
->driver_info
) {
967 const struct usb_device_id
*match
;
968 match
= usb_match_id(intf
, blacklist_table
);
973 if (id
->driver_info
== BTUSB_IGNORE
)
976 if (ignore_dga
&& id
->driver_info
& BTUSB_DIGIANSWER
)
979 if (ignore_csr
&& id
->driver_info
& BTUSB_CSR
)
982 if (ignore_sniffer
&& id
->driver_info
& BTUSB_SNIFFER
)
985 if (id
->driver_info
& BTUSB_ATH3012
) {
986 struct usb_device
*udev
= interface_to_usbdev(intf
);
988 /* Old firmware would otherwise let ath3k driver load
989 * patch and sysconfig files */
990 if (le16_to_cpu(udev
->descriptor
.bcdDevice
) <= 0x0001)
994 data
= kzalloc(sizeof(*data
), GFP_KERNEL
);
998 for (i
= 0; i
< intf
->cur_altsetting
->desc
.bNumEndpoints
; i
++) {
999 ep_desc
= &intf
->cur_altsetting
->endpoint
[i
].desc
;
1001 if (!data
->intr_ep
&& usb_endpoint_is_int_in(ep_desc
)) {
1002 data
->intr_ep
= ep_desc
;
1006 if (!data
->bulk_tx_ep
&& usb_endpoint_is_bulk_out(ep_desc
)) {
1007 data
->bulk_tx_ep
= ep_desc
;
1011 if (!data
->bulk_rx_ep
&& usb_endpoint_is_bulk_in(ep_desc
)) {
1012 data
->bulk_rx_ep
= ep_desc
;
1017 if (!data
->intr_ep
|| !data
->bulk_tx_ep
|| !data
->bulk_rx_ep
) {
1022 data
->cmdreq_type
= USB_TYPE_CLASS
;
1024 data
->udev
= interface_to_usbdev(intf
);
1027 spin_lock_init(&data
->lock
);
1029 INIT_WORK(&data
->work
, btusb_work
);
1030 INIT_WORK(&data
->waker
, btusb_waker
);
1031 spin_lock_init(&data
->txlock
);
1033 init_usb_anchor(&data
->tx_anchor
);
1034 init_usb_anchor(&data
->intr_anchor
);
1035 init_usb_anchor(&data
->bulk_anchor
);
1036 init_usb_anchor(&data
->isoc_anchor
);
1037 init_usb_anchor(&data
->deferred
);
1039 hdev
= hci_alloc_dev();
1045 hdev
->bus
= HCI_USB
;
1046 hdev
->driver_data
= data
;
1050 SET_HCIDEV_DEV(hdev
, &intf
->dev
);
1052 hdev
->open
= btusb_open
;
1053 hdev
->close
= btusb_close
;
1054 hdev
->flush
= btusb_flush
;
1055 hdev
->send
= btusb_send_frame
;
1056 hdev
->destruct
= btusb_destruct
;
1057 hdev
->notify
= btusb_notify
;
1059 hdev
->owner
= THIS_MODULE
;
1061 /* Interface numbers are hardcoded in the specification */
1062 data
->isoc
= usb_ifnum_to_if(data
->udev
, 1);
1065 set_bit(HCI_QUIRK_NO_RESET
, &hdev
->quirks
);
1067 if (force_scofix
|| id
->driver_info
& BTUSB_WRONG_SCO_MTU
) {
1068 if (!disable_scofix
)
1069 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE
, &hdev
->quirks
);
1072 if (id
->driver_info
& BTUSB_BROKEN_ISOC
)
1075 if (id
->driver_info
& BTUSB_DIGIANSWER
) {
1076 data
->cmdreq_type
= USB_TYPE_VENDOR
;
1077 set_bit(HCI_QUIRK_NO_RESET
, &hdev
->quirks
);
1080 if (id
->driver_info
& BTUSB_CSR
) {
1081 struct usb_device
*udev
= data
->udev
;
1083 /* Old firmware would otherwise execute USB reset */
1084 if (le16_to_cpu(udev
->descriptor
.bcdDevice
) < 0x117)
1085 set_bit(HCI_QUIRK_NO_RESET
, &hdev
->quirks
);
1088 if (id
->driver_info
& BTUSB_SNIFFER
) {
1089 struct usb_device
*udev
= data
->udev
;
1091 /* New sniffer firmware has crippled HCI interface */
1092 if (le16_to_cpu(udev
->descriptor
.bcdDevice
) > 0x997)
1093 set_bit(HCI_QUIRK_RAW_DEVICE
, &hdev
->quirks
);
1098 if (id
->driver_info
& BTUSB_BCM92035
) {
1099 unsigned char cmd
[] = { 0x3b, 0xfc, 0x01, 0x00 };
1100 struct sk_buff
*skb
;
1102 skb
= bt_skb_alloc(sizeof(cmd
), GFP_KERNEL
);
1104 memcpy(skb_put(skb
, sizeof(cmd
)), cmd
, sizeof(cmd
));
1105 skb_queue_tail(&hdev
->driver_init
, skb
);
1110 err
= usb_driver_claim_interface(&btusb_driver
,
1119 err
= hci_register_dev(hdev
);
1126 usb_set_intfdata(intf
, data
);
1131 static void btusb_disconnect(struct usb_interface
*intf
)
1133 struct btusb_data
*data
= usb_get_intfdata(intf
);
1134 struct hci_dev
*hdev
;
1136 BT_DBG("intf %p", intf
);
1143 __hci_dev_hold(hdev
);
1145 usb_set_intfdata(data
->intf
, NULL
);
1148 usb_set_intfdata(data
->isoc
, NULL
);
1150 hci_unregister_dev(hdev
);
1152 if (intf
== data
->isoc
)
1153 usb_driver_release_interface(&btusb_driver
, data
->intf
);
1154 else if (data
->isoc
)
1155 usb_driver_release_interface(&btusb_driver
, data
->isoc
);
1157 __hci_dev_put(hdev
);
1163 static int btusb_suspend(struct usb_interface
*intf
, pm_message_t message
)
1165 struct btusb_data
*data
= usb_get_intfdata(intf
);
1167 BT_DBG("intf %p", intf
);
1169 if (data
->suspend_count
++)
1172 spin_lock_irq(&data
->txlock
);
1173 if (!(PMSG_IS_AUTO(message
) && data
->tx_in_flight
)) {
1174 set_bit(BTUSB_SUSPENDING
, &data
->flags
);
1175 spin_unlock_irq(&data
->txlock
);
1177 spin_unlock_irq(&data
->txlock
);
1178 data
->suspend_count
--;
1182 cancel_work_sync(&data
->work
);
1184 btusb_stop_traffic(data
);
1185 usb_kill_anchored_urbs(&data
->tx_anchor
);
1190 static void play_deferred(struct btusb_data
*data
)
1195 while ((urb
= usb_get_from_anchor(&data
->deferred
))) {
1196 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
1200 data
->tx_in_flight
++;
1202 usb_scuttle_anchored_urbs(&data
->deferred
);
1205 static int btusb_resume(struct usb_interface
*intf
)
1207 struct btusb_data
*data
= usb_get_intfdata(intf
);
1208 struct hci_dev
*hdev
= data
->hdev
;
1211 BT_DBG("intf %p", intf
);
1213 if (--data
->suspend_count
)
1216 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
1219 if (test_bit(BTUSB_INTR_RUNNING
, &data
->flags
)) {
1220 err
= btusb_submit_intr_urb(hdev
, GFP_NOIO
);
1222 clear_bit(BTUSB_INTR_RUNNING
, &data
->flags
);
1227 if (test_bit(BTUSB_BULK_RUNNING
, &data
->flags
)) {
1228 err
= btusb_submit_bulk_urb(hdev
, GFP_NOIO
);
1230 clear_bit(BTUSB_BULK_RUNNING
, &data
->flags
);
1234 btusb_submit_bulk_urb(hdev
, GFP_NOIO
);
1237 if (test_bit(BTUSB_ISOC_RUNNING
, &data
->flags
)) {
1238 if (btusb_submit_isoc_urb(hdev
, GFP_NOIO
) < 0)
1239 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
1241 btusb_submit_isoc_urb(hdev
, GFP_NOIO
);
1244 spin_lock_irq(&data
->txlock
);
1245 play_deferred(data
);
1246 clear_bit(BTUSB_SUSPENDING
, &data
->flags
);
1247 spin_unlock_irq(&data
->txlock
);
1248 schedule_work(&data
->work
);
1253 usb_scuttle_anchored_urbs(&data
->deferred
);
1255 spin_lock_irq(&data
->txlock
);
1256 clear_bit(BTUSB_SUSPENDING
, &data
->flags
);
1257 spin_unlock_irq(&data
->txlock
);
1263 static struct usb_driver btusb_driver
= {
1265 .probe
= btusb_probe
,
1266 .disconnect
= btusb_disconnect
,
1268 .suspend
= btusb_suspend
,
1269 .resume
= btusb_resume
,
1271 .id_table
= btusb_table
,
1272 .supports_autosuspend
= 1,
1275 static int __init
btusb_init(void)
1277 BT_INFO("Generic Bluetooth USB driver ver %s", VERSION
);
1279 return usb_register(&btusb_driver
);
1282 static void __exit
btusb_exit(void)
1284 usb_deregister(&btusb_driver
);
1287 module_init(btusb_init
);
1288 module_exit(btusb_exit
);
1290 module_param(ignore_dga
, bool, 0644);
1291 MODULE_PARM_DESC(ignore_dga
, "Ignore devices with id 08fd:0001");
1293 module_param(ignore_csr
, bool, 0644);
1294 MODULE_PARM_DESC(ignore_csr
, "Ignore devices with id 0a12:0001");
1296 module_param(ignore_sniffer
, bool, 0644);
1297 MODULE_PARM_DESC(ignore_sniffer
, "Ignore devices with id 0a12:0002");
1299 module_param(disable_scofix
, bool, 0644);
1300 MODULE_PARM_DESC(disable_scofix
, "Disable fixup of wrong SCO buffer size");
1302 module_param(force_scofix
, bool, 0644);
1303 MODULE_PARM_DESC(force_scofix
, "Force fixup of wrong SCO buffers size");
1305 module_param(reset
, bool, 0644);
1306 MODULE_PARM_DESC(reset
, "Send HCI reset command on initialization");
1308 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1309 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION
);
1310 MODULE_VERSION(VERSION
);
1311 MODULE_LICENSE("GPL");