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>
27 #include <net/bluetooth/bluetooth.h>
28 #include <net/bluetooth/hci_core.h>
32 static bool ignore_dga
;
33 static bool ignore_csr
;
34 static bool ignore_sniffer
;
35 static bool disable_scofix
;
36 static bool force_scofix
;
38 static bool reset
= 1;
40 static struct usb_driver btusb_driver
;
42 #define BTUSB_IGNORE 0x01
43 #define BTUSB_DIGIANSWER 0x02
44 #define BTUSB_CSR 0x04
45 #define BTUSB_SNIFFER 0x08
46 #define BTUSB_BCM92035 0x10
47 #define BTUSB_BROKEN_ISOC 0x20
48 #define BTUSB_WRONG_SCO_MTU 0x40
49 #define BTUSB_ATH3012 0x80
51 static struct usb_device_id btusb_table
[] = {
52 /* Generic Bluetooth USB device */
53 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
55 /* Apple-specific (Broadcom) devices */
56 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01) },
58 /* Broadcom SoftSailing reporting vendor specific */
59 { USB_DEVICE(0x0a5c, 0x21e1) },
61 /* Apple MacBookPro 7,1 */
62 { USB_DEVICE(0x05ac, 0x8213) },
65 { USB_DEVICE(0x05ac, 0x8215) },
67 /* Apple MacBookPro6,2 */
68 { USB_DEVICE(0x05ac, 0x8218) },
70 /* Apple MacBookAir3,1, MacBookAir3,2 */
71 { USB_DEVICE(0x05ac, 0x821b) },
73 /* Apple MacBookAir4,1 */
74 { USB_DEVICE(0x05ac, 0x821f) },
76 /* Apple MacBookPro8,2 */
77 { USB_DEVICE(0x05ac, 0x821a) },
79 /* Apple MacMini5,1 */
80 { USB_DEVICE(0x05ac, 0x8281) },
82 /* AVM BlueFRITZ! USB v2.0 */
83 { USB_DEVICE(0x057c, 0x3800) },
85 /* Bluetooth Ultraport Module from IBM */
86 { USB_DEVICE(0x04bf, 0x030a) },
88 /* ALPS Modules with non-standard id */
89 { USB_DEVICE(0x044e, 0x3001) },
90 { USB_DEVICE(0x044e, 0x3002) },
92 /* Ericsson with non-standard id */
93 { USB_DEVICE(0x0bdb, 0x1002) },
95 /* Canyon CN-BTU1 with HID interfaces */
96 { USB_DEVICE(0x0c10, 0x0000) },
98 /* Broadcom BCM20702A0 */
99 { USB_DEVICE(0x0b05, 0x17b5) },
100 { USB_DEVICE(0x04ca, 0x2003) },
101 { USB_DEVICE(0x0489, 0xe042) },
102 { USB_DEVICE(0x413c, 0x8197) },
104 /* Foxconn - Hon Hai */
105 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01) },
107 /*Broadcom devices with vendor specific id */
108 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01) },
110 { } /* Terminating entry */
113 MODULE_DEVICE_TABLE(usb
, btusb_table
);
115 static struct usb_device_id blacklist_table
[] = {
116 /* CSR BlueCore devices */
117 { USB_DEVICE(0x0a12, 0x0001), .driver_info
= BTUSB_CSR
},
119 /* Broadcom BCM2033 without firmware */
120 { USB_DEVICE(0x0a5c, 0x2033), .driver_info
= BTUSB_IGNORE
},
122 /* Atheros 3011 with sflash firmware */
123 { USB_DEVICE(0x0cf3, 0x3002), .driver_info
= BTUSB_IGNORE
},
124 { USB_DEVICE(0x0cf3, 0xe019), .driver_info
= BTUSB_IGNORE
},
125 { USB_DEVICE(0x13d3, 0x3304), .driver_info
= BTUSB_IGNORE
},
126 { USB_DEVICE(0x0930, 0x0215), .driver_info
= BTUSB_IGNORE
},
127 { USB_DEVICE(0x0489, 0xe03d), .driver_info
= BTUSB_IGNORE
},
128 { USB_DEVICE(0x0489, 0xe027), .driver_info
= BTUSB_IGNORE
},
130 /* Atheros AR9285 Malbec with sflash firmware */
131 { USB_DEVICE(0x03f0, 0x311d), .driver_info
= BTUSB_IGNORE
},
133 /* Atheros 3012 with sflash firmware */
134 { USB_DEVICE(0x0cf3, 0x3004), .driver_info
= BTUSB_ATH3012
},
135 { USB_DEVICE(0x0cf3, 0x311d), .driver_info
= BTUSB_ATH3012
},
136 { USB_DEVICE(0x13d3, 0x3375), .driver_info
= BTUSB_ATH3012
},
137 { USB_DEVICE(0x04ca, 0x3005), .driver_info
= BTUSB_ATH3012
},
138 { USB_DEVICE(0x13d3, 0x3362), .driver_info
= BTUSB_ATH3012
},
139 { USB_DEVICE(0x0cf3, 0xe004), .driver_info
= BTUSB_ATH3012
},
140 { USB_DEVICE(0x0930, 0x0219), .driver_info
= BTUSB_ATH3012
},
141 { USB_DEVICE(0x0489, 0xe057), .driver_info
= BTUSB_ATH3012
},
142 { USB_DEVICE(0x13d3, 0x3393), .driver_info
= BTUSB_ATH3012
},
144 /* Atheros AR5BBU12 with sflash firmware */
145 { USB_DEVICE(0x0489, 0xe02c), .driver_info
= BTUSB_IGNORE
},
147 /* Atheros AR5BBU12 with sflash firmware */
148 { USB_DEVICE(0x0489, 0xe03c), .driver_info
= BTUSB_ATH3012
},
149 { USB_DEVICE(0x0489, 0xe036), .driver_info
= BTUSB_ATH3012
},
151 /* Broadcom BCM2035 */
152 { USB_DEVICE(0x0a5c, 0x2035), .driver_info
= BTUSB_WRONG_SCO_MTU
},
153 { USB_DEVICE(0x0a5c, 0x200a), .driver_info
= BTUSB_WRONG_SCO_MTU
},
154 { USB_DEVICE(0x0a5c, 0x2009), .driver_info
= BTUSB_BCM92035
},
156 /* Broadcom BCM2045 */
157 { USB_DEVICE(0x0a5c, 0x2039), .driver_info
= BTUSB_WRONG_SCO_MTU
},
158 { USB_DEVICE(0x0a5c, 0x2101), .driver_info
= BTUSB_WRONG_SCO_MTU
},
160 /* IBM/Lenovo ThinkPad with Broadcom chip */
161 { USB_DEVICE(0x0a5c, 0x201e), .driver_info
= BTUSB_WRONG_SCO_MTU
},
162 { USB_DEVICE(0x0a5c, 0x2110), .driver_info
= BTUSB_WRONG_SCO_MTU
},
164 /* HP laptop with Broadcom chip */
165 { USB_DEVICE(0x03f0, 0x171d), .driver_info
= BTUSB_WRONG_SCO_MTU
},
167 /* Dell laptop with Broadcom chip */
168 { USB_DEVICE(0x413c, 0x8126), .driver_info
= BTUSB_WRONG_SCO_MTU
},
170 /* Dell Wireless 370 and 410 devices */
171 { USB_DEVICE(0x413c, 0x8152), .driver_info
= BTUSB_WRONG_SCO_MTU
},
172 { USB_DEVICE(0x413c, 0x8156), .driver_info
= BTUSB_WRONG_SCO_MTU
},
174 /* Belkin F8T012 and F8T013 devices */
175 { USB_DEVICE(0x050d, 0x0012), .driver_info
= BTUSB_WRONG_SCO_MTU
},
176 { USB_DEVICE(0x050d, 0x0013), .driver_info
= BTUSB_WRONG_SCO_MTU
},
178 /* Asus WL-BTD202 device */
179 { USB_DEVICE(0x0b05, 0x1715), .driver_info
= BTUSB_WRONG_SCO_MTU
},
181 /* Kensington Bluetooth USB adapter */
182 { USB_DEVICE(0x047d, 0x105e), .driver_info
= BTUSB_WRONG_SCO_MTU
},
184 /* RTX Telecom based adapters with buggy SCO support */
185 { USB_DEVICE(0x0400, 0x0807), .driver_info
= BTUSB_BROKEN_ISOC
},
186 { USB_DEVICE(0x0400, 0x080a), .driver_info
= BTUSB_BROKEN_ISOC
},
188 /* CONWISE Technology based adapters with buggy SCO support */
189 { USB_DEVICE(0x0e5e, 0x6622), .driver_info
= BTUSB_BROKEN_ISOC
},
191 /* Digianswer devices */
192 { USB_DEVICE(0x08fd, 0x0001), .driver_info
= BTUSB_DIGIANSWER
},
193 { USB_DEVICE(0x08fd, 0x0002), .driver_info
= BTUSB_IGNORE
},
195 /* CSR BlueCore Bluetooth Sniffer */
196 { USB_DEVICE(0x0a12, 0x0002), .driver_info
= BTUSB_SNIFFER
},
198 /* Frontline ComProbe Bluetooth Sniffer */
199 { USB_DEVICE(0x16d3, 0x0002), .driver_info
= BTUSB_SNIFFER
},
201 { } /* Terminating entry */
204 #define BTUSB_MAX_ISOC_FRAMES 10
206 #define BTUSB_INTR_RUNNING 0
207 #define BTUSB_BULK_RUNNING 1
208 #define BTUSB_ISOC_RUNNING 2
209 #define BTUSB_SUSPENDING 3
210 #define BTUSB_DID_ISO_RESUME 4
213 struct hci_dev
*hdev
;
214 struct usb_device
*udev
;
215 struct usb_interface
*intf
;
216 struct usb_interface
*isoc
;
222 struct work_struct work
;
223 struct work_struct waker
;
225 struct usb_anchor tx_anchor
;
226 struct usb_anchor intr_anchor
;
227 struct usb_anchor bulk_anchor
;
228 struct usb_anchor isoc_anchor
;
229 struct usb_anchor deferred
;
233 struct usb_endpoint_descriptor
*intr_ep
;
234 struct usb_endpoint_descriptor
*bulk_tx_ep
;
235 struct usb_endpoint_descriptor
*bulk_rx_ep
;
236 struct usb_endpoint_descriptor
*isoc_tx_ep
;
237 struct usb_endpoint_descriptor
*isoc_rx_ep
;
241 unsigned int sco_num
;
246 static int inc_tx(struct btusb_data
*data
)
251 spin_lock_irqsave(&data
->txlock
, flags
);
252 rv
= test_bit(BTUSB_SUSPENDING
, &data
->flags
);
254 data
->tx_in_flight
++;
255 spin_unlock_irqrestore(&data
->txlock
, flags
);
260 static void btusb_intr_complete(struct urb
*urb
)
262 struct hci_dev
*hdev
= urb
->context
;
263 struct btusb_data
*data
= hci_get_drvdata(hdev
);
266 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
267 urb
, urb
->status
, urb
->actual_length
);
269 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
272 if (urb
->status
== 0) {
273 hdev
->stat
.byte_rx
+= urb
->actual_length
;
275 if (hci_recv_fragment(hdev
, HCI_EVENT_PKT
,
276 urb
->transfer_buffer
,
277 urb
->actual_length
) < 0) {
278 BT_ERR("%s corrupted event packet", hdev
->name
);
283 if (!test_bit(BTUSB_INTR_RUNNING
, &data
->flags
))
286 usb_mark_last_busy(data
->udev
);
287 usb_anchor_urb(urb
, &data
->intr_anchor
);
289 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
291 /* -EPERM: urb is being killed;
292 * -ENODEV: device got disconnected */
293 if (err
!= -EPERM
&& err
!= -ENODEV
)
294 BT_ERR("%s urb %p failed to resubmit (%d)",
295 hdev
->name
, urb
, -err
);
296 usb_unanchor_urb(urb
);
300 static int btusb_submit_intr_urb(struct hci_dev
*hdev
, gfp_t mem_flags
)
302 struct btusb_data
*data
= hci_get_drvdata(hdev
);
308 BT_DBG("%s", hdev
->name
);
313 urb
= usb_alloc_urb(0, mem_flags
);
317 size
= le16_to_cpu(data
->intr_ep
->wMaxPacketSize
);
319 buf
= kmalloc(size
, mem_flags
);
325 pipe
= usb_rcvintpipe(data
->udev
, data
->intr_ep
->bEndpointAddress
);
327 usb_fill_int_urb(urb
, data
->udev
, pipe
, buf
, size
,
328 btusb_intr_complete
, hdev
,
329 data
->intr_ep
->bInterval
);
331 urb
->transfer_flags
|= URB_FREE_BUFFER
;
333 usb_anchor_urb(urb
, &data
->intr_anchor
);
335 err
= usb_submit_urb(urb
, mem_flags
);
337 if (err
!= -EPERM
&& err
!= -ENODEV
)
338 BT_ERR("%s urb %p submission failed (%d)",
339 hdev
->name
, urb
, -err
);
340 usb_unanchor_urb(urb
);
348 static void btusb_bulk_complete(struct urb
*urb
)
350 struct hci_dev
*hdev
= urb
->context
;
351 struct btusb_data
*data
= hci_get_drvdata(hdev
);
354 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
355 urb
, urb
->status
, urb
->actual_length
);
357 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
360 if (urb
->status
== 0) {
361 hdev
->stat
.byte_rx
+= urb
->actual_length
;
363 if (hci_recv_fragment(hdev
, HCI_ACLDATA_PKT
,
364 urb
->transfer_buffer
,
365 urb
->actual_length
) < 0) {
366 BT_ERR("%s corrupted ACL packet", hdev
->name
);
371 if (!test_bit(BTUSB_BULK_RUNNING
, &data
->flags
))
374 usb_anchor_urb(urb
, &data
->bulk_anchor
);
375 usb_mark_last_busy(data
->udev
);
377 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
379 /* -EPERM: urb is being killed;
380 * -ENODEV: device got disconnected */
381 if (err
!= -EPERM
&& err
!= -ENODEV
)
382 BT_ERR("%s urb %p failed to resubmit (%d)",
383 hdev
->name
, urb
, -err
);
384 usb_unanchor_urb(urb
);
388 static int btusb_submit_bulk_urb(struct hci_dev
*hdev
, gfp_t mem_flags
)
390 struct btusb_data
*data
= hci_get_drvdata(hdev
);
394 int err
, size
= HCI_MAX_FRAME_SIZE
;
396 BT_DBG("%s", hdev
->name
);
398 if (!data
->bulk_rx_ep
)
401 urb
= usb_alloc_urb(0, mem_flags
);
405 buf
= kmalloc(size
, mem_flags
);
411 pipe
= usb_rcvbulkpipe(data
->udev
, data
->bulk_rx_ep
->bEndpointAddress
);
413 usb_fill_bulk_urb(urb
, data
->udev
, pipe
,
414 buf
, size
, btusb_bulk_complete
, hdev
);
416 urb
->transfer_flags
|= URB_FREE_BUFFER
;
418 usb_mark_last_busy(data
->udev
);
419 usb_anchor_urb(urb
, &data
->bulk_anchor
);
421 err
= usb_submit_urb(urb
, mem_flags
);
423 if (err
!= -EPERM
&& err
!= -ENODEV
)
424 BT_ERR("%s urb %p submission failed (%d)",
425 hdev
->name
, urb
, -err
);
426 usb_unanchor_urb(urb
);
434 static void btusb_isoc_complete(struct urb
*urb
)
436 struct hci_dev
*hdev
= urb
->context
;
437 struct btusb_data
*data
= hci_get_drvdata(hdev
);
440 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
441 urb
, urb
->status
, urb
->actual_length
);
443 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
446 if (urb
->status
== 0) {
447 for (i
= 0; i
< urb
->number_of_packets
; i
++) {
448 unsigned int offset
= urb
->iso_frame_desc
[i
].offset
;
449 unsigned int length
= urb
->iso_frame_desc
[i
].actual_length
;
451 if (urb
->iso_frame_desc
[i
].status
)
454 hdev
->stat
.byte_rx
+= length
;
456 if (hci_recv_fragment(hdev
, HCI_SCODATA_PKT
,
457 urb
->transfer_buffer
+ offset
,
459 BT_ERR("%s corrupted SCO packet", hdev
->name
);
465 if (!test_bit(BTUSB_ISOC_RUNNING
, &data
->flags
))
468 usb_anchor_urb(urb
, &data
->isoc_anchor
);
470 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
472 /* -EPERM: urb is being killed;
473 * -ENODEV: device got disconnected */
474 if (err
!= -EPERM
&& err
!= -ENODEV
)
475 BT_ERR("%s urb %p failed to resubmit (%d)",
476 hdev
->name
, urb
, -err
);
477 usb_unanchor_urb(urb
);
481 static inline void __fill_isoc_descriptor(struct urb
*urb
, int len
, int mtu
)
485 BT_DBG("len %d mtu %d", len
, mtu
);
487 for (i
= 0; i
< BTUSB_MAX_ISOC_FRAMES
&& len
>= mtu
;
488 i
++, offset
+= mtu
, len
-= mtu
) {
489 urb
->iso_frame_desc
[i
].offset
= offset
;
490 urb
->iso_frame_desc
[i
].length
= mtu
;
493 if (len
&& i
< BTUSB_MAX_ISOC_FRAMES
) {
494 urb
->iso_frame_desc
[i
].offset
= offset
;
495 urb
->iso_frame_desc
[i
].length
= len
;
499 urb
->number_of_packets
= i
;
502 static int btusb_submit_isoc_urb(struct hci_dev
*hdev
, gfp_t mem_flags
)
504 struct btusb_data
*data
= hci_get_drvdata(hdev
);
510 BT_DBG("%s", hdev
->name
);
512 if (!data
->isoc_rx_ep
)
515 urb
= usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES
, mem_flags
);
519 size
= le16_to_cpu(data
->isoc_rx_ep
->wMaxPacketSize
) *
520 BTUSB_MAX_ISOC_FRAMES
;
522 buf
= kmalloc(size
, mem_flags
);
528 pipe
= usb_rcvisocpipe(data
->udev
, data
->isoc_rx_ep
->bEndpointAddress
);
530 usb_fill_int_urb(urb
, data
->udev
, pipe
, buf
, size
, btusb_isoc_complete
,
531 hdev
, data
->isoc_rx_ep
->bInterval
);
533 urb
->transfer_flags
= URB_FREE_BUFFER
| URB_ISO_ASAP
;
535 __fill_isoc_descriptor(urb
, size
,
536 le16_to_cpu(data
->isoc_rx_ep
->wMaxPacketSize
));
538 usb_anchor_urb(urb
, &data
->isoc_anchor
);
540 err
= usb_submit_urb(urb
, mem_flags
);
542 if (err
!= -EPERM
&& err
!= -ENODEV
)
543 BT_ERR("%s urb %p submission failed (%d)",
544 hdev
->name
, urb
, -err
);
545 usb_unanchor_urb(urb
);
553 static void btusb_tx_complete(struct urb
*urb
)
555 struct sk_buff
*skb
= urb
->context
;
556 struct hci_dev
*hdev
= (struct hci_dev
*) skb
->dev
;
557 struct btusb_data
*data
= hci_get_drvdata(hdev
);
559 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
560 urb
, urb
->status
, urb
->actual_length
);
562 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
566 hdev
->stat
.byte_tx
+= urb
->transfer_buffer_length
;
571 spin_lock(&data
->txlock
);
572 data
->tx_in_flight
--;
573 spin_unlock(&data
->txlock
);
575 kfree(urb
->setup_packet
);
580 static void btusb_isoc_tx_complete(struct urb
*urb
)
582 struct sk_buff
*skb
= urb
->context
;
583 struct hci_dev
*hdev
= (struct hci_dev
*) skb
->dev
;
585 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
586 urb
, urb
->status
, urb
->actual_length
);
588 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
592 hdev
->stat
.byte_tx
+= urb
->transfer_buffer_length
;
597 kfree(urb
->setup_packet
);
602 static int btusb_open(struct hci_dev
*hdev
)
604 struct btusb_data
*data
= hci_get_drvdata(hdev
);
607 BT_DBG("%s", hdev
->name
);
609 err
= usb_autopm_get_interface(data
->intf
);
613 data
->intf
->needs_remote_wakeup
= 1;
615 if (test_and_set_bit(HCI_RUNNING
, &hdev
->flags
))
618 if (test_and_set_bit(BTUSB_INTR_RUNNING
, &data
->flags
))
621 err
= btusb_submit_intr_urb(hdev
, GFP_KERNEL
);
625 err
= btusb_submit_bulk_urb(hdev
, GFP_KERNEL
);
627 usb_kill_anchored_urbs(&data
->intr_anchor
);
631 set_bit(BTUSB_BULK_RUNNING
, &data
->flags
);
632 btusb_submit_bulk_urb(hdev
, GFP_KERNEL
);
635 usb_autopm_put_interface(data
->intf
);
639 clear_bit(BTUSB_INTR_RUNNING
, &data
->flags
);
640 clear_bit(HCI_RUNNING
, &hdev
->flags
);
641 usb_autopm_put_interface(data
->intf
);
645 static void btusb_stop_traffic(struct btusb_data
*data
)
647 usb_kill_anchored_urbs(&data
->intr_anchor
);
648 usb_kill_anchored_urbs(&data
->bulk_anchor
);
649 usb_kill_anchored_urbs(&data
->isoc_anchor
);
652 static int btusb_close(struct hci_dev
*hdev
)
654 struct btusb_data
*data
= hci_get_drvdata(hdev
);
657 BT_DBG("%s", hdev
->name
);
659 if (!test_and_clear_bit(HCI_RUNNING
, &hdev
->flags
))
662 cancel_work_sync(&data
->work
);
663 cancel_work_sync(&data
->waker
);
665 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
666 clear_bit(BTUSB_BULK_RUNNING
, &data
->flags
);
667 clear_bit(BTUSB_INTR_RUNNING
, &data
->flags
);
669 btusb_stop_traffic(data
);
670 err
= usb_autopm_get_interface(data
->intf
);
674 data
->intf
->needs_remote_wakeup
= 0;
675 usb_autopm_put_interface(data
->intf
);
678 usb_scuttle_anchored_urbs(&data
->deferred
);
682 static int btusb_flush(struct hci_dev
*hdev
)
684 struct btusb_data
*data
= hci_get_drvdata(hdev
);
686 BT_DBG("%s", hdev
->name
);
688 usb_kill_anchored_urbs(&data
->tx_anchor
);
693 static int btusb_send_frame(struct sk_buff
*skb
)
695 struct hci_dev
*hdev
= (struct hci_dev
*) skb
->dev
;
696 struct btusb_data
*data
= hci_get_drvdata(hdev
);
697 struct usb_ctrlrequest
*dr
;
702 BT_DBG("%s", hdev
->name
);
704 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
707 switch (bt_cb(skb
)->pkt_type
) {
708 case HCI_COMMAND_PKT
:
709 urb
= usb_alloc_urb(0, GFP_ATOMIC
);
713 dr
= kmalloc(sizeof(*dr
), GFP_ATOMIC
);
719 dr
->bRequestType
= data
->cmdreq_type
;
723 dr
->wLength
= __cpu_to_le16(skb
->len
);
725 pipe
= usb_sndctrlpipe(data
->udev
, 0x00);
727 usb_fill_control_urb(urb
, data
->udev
, pipe
, (void *) dr
,
728 skb
->data
, skb
->len
, btusb_tx_complete
, skb
);
733 case HCI_ACLDATA_PKT
:
734 if (!data
->bulk_tx_ep
)
737 urb
= usb_alloc_urb(0, GFP_ATOMIC
);
741 pipe
= usb_sndbulkpipe(data
->udev
,
742 data
->bulk_tx_ep
->bEndpointAddress
);
744 usb_fill_bulk_urb(urb
, data
->udev
, pipe
,
745 skb
->data
, skb
->len
, btusb_tx_complete
, skb
);
750 case HCI_SCODATA_PKT
:
751 if (!data
->isoc_tx_ep
|| hdev
->conn_hash
.sco_num
< 1)
754 urb
= usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES
, GFP_ATOMIC
);
758 pipe
= usb_sndisocpipe(data
->udev
,
759 data
->isoc_tx_ep
->bEndpointAddress
);
761 usb_fill_int_urb(urb
, data
->udev
, pipe
,
762 skb
->data
, skb
->len
, btusb_isoc_tx_complete
,
763 skb
, data
->isoc_tx_ep
->bInterval
);
765 urb
->transfer_flags
= URB_ISO_ASAP
;
767 __fill_isoc_descriptor(urb
, skb
->len
,
768 le16_to_cpu(data
->isoc_tx_ep
->wMaxPacketSize
));
779 usb_anchor_urb(urb
, &data
->deferred
);
780 schedule_work(&data
->waker
);
786 usb_anchor_urb(urb
, &data
->tx_anchor
);
788 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
790 if (err
!= -EPERM
&& err
!= -ENODEV
)
791 BT_ERR("%s urb %p submission failed (%d)",
792 hdev
->name
, urb
, -err
);
793 kfree(urb
->setup_packet
);
794 usb_unanchor_urb(urb
);
796 usb_mark_last_busy(data
->udev
);
804 static void btusb_notify(struct hci_dev
*hdev
, unsigned int evt
)
806 struct btusb_data
*data
= hci_get_drvdata(hdev
);
808 BT_DBG("%s evt %d", hdev
->name
, evt
);
810 if (hdev
->conn_hash
.sco_num
!= data
->sco_num
) {
811 data
->sco_num
= hdev
->conn_hash
.sco_num
;
812 schedule_work(&data
->work
);
816 static inline int __set_isoc_interface(struct hci_dev
*hdev
, int altsetting
)
818 struct btusb_data
*data
= hci_get_drvdata(hdev
);
819 struct usb_interface
*intf
= data
->isoc
;
820 struct usb_endpoint_descriptor
*ep_desc
;
826 err
= usb_set_interface(data
->udev
, 1, altsetting
);
828 BT_ERR("%s setting interface failed (%d)", hdev
->name
, -err
);
832 data
->isoc_altsetting
= altsetting
;
834 data
->isoc_tx_ep
= NULL
;
835 data
->isoc_rx_ep
= NULL
;
837 for (i
= 0; i
< intf
->cur_altsetting
->desc
.bNumEndpoints
; i
++) {
838 ep_desc
= &intf
->cur_altsetting
->endpoint
[i
].desc
;
840 if (!data
->isoc_tx_ep
&& usb_endpoint_is_isoc_out(ep_desc
)) {
841 data
->isoc_tx_ep
= ep_desc
;
845 if (!data
->isoc_rx_ep
&& usb_endpoint_is_isoc_in(ep_desc
)) {
846 data
->isoc_rx_ep
= ep_desc
;
851 if (!data
->isoc_tx_ep
|| !data
->isoc_rx_ep
) {
852 BT_ERR("%s invalid SCO descriptors", hdev
->name
);
859 static void btusb_work(struct work_struct
*work
)
861 struct btusb_data
*data
= container_of(work
, struct btusb_data
, work
);
862 struct hci_dev
*hdev
= data
->hdev
;
866 if (hdev
->conn_hash
.sco_num
> 0) {
867 if (!test_bit(BTUSB_DID_ISO_RESUME
, &data
->flags
)) {
868 err
= usb_autopm_get_interface(data
->isoc
? data
->isoc
: data
->intf
);
870 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
871 usb_kill_anchored_urbs(&data
->isoc_anchor
);
875 set_bit(BTUSB_DID_ISO_RESUME
, &data
->flags
);
878 if (hdev
->voice_setting
& 0x0020) {
879 static const int alts
[3] = { 2, 4, 5 };
880 new_alts
= alts
[hdev
->conn_hash
.sco_num
- 1];
882 new_alts
= hdev
->conn_hash
.sco_num
;
885 if (data
->isoc_altsetting
!= new_alts
) {
886 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
887 usb_kill_anchored_urbs(&data
->isoc_anchor
);
889 if (__set_isoc_interface(hdev
, new_alts
) < 0)
893 if (!test_and_set_bit(BTUSB_ISOC_RUNNING
, &data
->flags
)) {
894 if (btusb_submit_isoc_urb(hdev
, GFP_KERNEL
) < 0)
895 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
897 btusb_submit_isoc_urb(hdev
, GFP_KERNEL
);
900 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
901 usb_kill_anchored_urbs(&data
->isoc_anchor
);
903 __set_isoc_interface(hdev
, 0);
904 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME
, &data
->flags
))
905 usb_autopm_put_interface(data
->isoc
? data
->isoc
: data
->intf
);
909 static void btusb_waker(struct work_struct
*work
)
911 struct btusb_data
*data
= container_of(work
, struct btusb_data
, waker
);
914 err
= usb_autopm_get_interface(data
->intf
);
918 usb_autopm_put_interface(data
->intf
);
921 static int btusb_probe(struct usb_interface
*intf
,
922 const struct usb_device_id
*id
)
924 struct usb_endpoint_descriptor
*ep_desc
;
925 struct btusb_data
*data
;
926 struct hci_dev
*hdev
;
929 BT_DBG("intf %p id %p", intf
, id
);
931 /* interface numbers are hardcoded in the spec */
932 if (intf
->cur_altsetting
->desc
.bInterfaceNumber
!= 0)
935 if (!id
->driver_info
) {
936 const struct usb_device_id
*match
;
937 match
= usb_match_id(intf
, blacklist_table
);
942 if (id
->driver_info
== BTUSB_IGNORE
)
945 if (ignore_dga
&& id
->driver_info
& BTUSB_DIGIANSWER
)
948 if (ignore_csr
&& id
->driver_info
& BTUSB_CSR
)
951 if (ignore_sniffer
&& id
->driver_info
& BTUSB_SNIFFER
)
954 if (id
->driver_info
& BTUSB_ATH3012
) {
955 struct usb_device
*udev
= interface_to_usbdev(intf
);
957 /* Old firmware would otherwise let ath3k driver load
958 * patch and sysconfig files */
959 if (le16_to_cpu(udev
->descriptor
.bcdDevice
) <= 0x0001)
963 data
= devm_kzalloc(&intf
->dev
, sizeof(*data
), GFP_KERNEL
);
967 for (i
= 0; i
< intf
->cur_altsetting
->desc
.bNumEndpoints
; i
++) {
968 ep_desc
= &intf
->cur_altsetting
->endpoint
[i
].desc
;
970 if (!data
->intr_ep
&& usb_endpoint_is_int_in(ep_desc
)) {
971 data
->intr_ep
= ep_desc
;
975 if (!data
->bulk_tx_ep
&& usb_endpoint_is_bulk_out(ep_desc
)) {
976 data
->bulk_tx_ep
= ep_desc
;
980 if (!data
->bulk_rx_ep
&& usb_endpoint_is_bulk_in(ep_desc
)) {
981 data
->bulk_rx_ep
= ep_desc
;
986 if (!data
->intr_ep
|| !data
->bulk_tx_ep
|| !data
->bulk_rx_ep
)
989 data
->cmdreq_type
= USB_TYPE_CLASS
;
991 data
->udev
= interface_to_usbdev(intf
);
994 spin_lock_init(&data
->lock
);
996 INIT_WORK(&data
->work
, btusb_work
);
997 INIT_WORK(&data
->waker
, btusb_waker
);
998 spin_lock_init(&data
->txlock
);
1000 init_usb_anchor(&data
->tx_anchor
);
1001 init_usb_anchor(&data
->intr_anchor
);
1002 init_usb_anchor(&data
->bulk_anchor
);
1003 init_usb_anchor(&data
->isoc_anchor
);
1004 init_usb_anchor(&data
->deferred
);
1006 hdev
= hci_alloc_dev();
1010 hdev
->bus
= HCI_USB
;
1011 hci_set_drvdata(hdev
, data
);
1015 SET_HCIDEV_DEV(hdev
, &intf
->dev
);
1017 hdev
->open
= btusb_open
;
1018 hdev
->close
= btusb_close
;
1019 hdev
->flush
= btusb_flush
;
1020 hdev
->send
= btusb_send_frame
;
1021 hdev
->notify
= btusb_notify
;
1023 /* Interface numbers are hardcoded in the specification */
1024 data
->isoc
= usb_ifnum_to_if(data
->udev
, 1);
1027 set_bit(HCI_QUIRK_RESET_ON_CLOSE
, &hdev
->quirks
);
1029 if (force_scofix
|| id
->driver_info
& BTUSB_WRONG_SCO_MTU
) {
1030 if (!disable_scofix
)
1031 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE
, &hdev
->quirks
);
1034 if (id
->driver_info
& BTUSB_BROKEN_ISOC
)
1037 if (id
->driver_info
& BTUSB_DIGIANSWER
) {
1038 data
->cmdreq_type
= USB_TYPE_VENDOR
;
1039 set_bit(HCI_QUIRK_RESET_ON_CLOSE
, &hdev
->quirks
);
1042 if (id
->driver_info
& BTUSB_CSR
) {
1043 struct usb_device
*udev
= data
->udev
;
1045 /* Old firmware would otherwise execute USB reset */
1046 if (le16_to_cpu(udev
->descriptor
.bcdDevice
) < 0x117)
1047 set_bit(HCI_QUIRK_RESET_ON_CLOSE
, &hdev
->quirks
);
1050 if (id
->driver_info
& BTUSB_SNIFFER
) {
1051 struct usb_device
*udev
= data
->udev
;
1053 /* New sniffer firmware has crippled HCI interface */
1054 if (le16_to_cpu(udev
->descriptor
.bcdDevice
) > 0x997)
1055 set_bit(HCI_QUIRK_RAW_DEVICE
, &hdev
->quirks
);
1060 if (id
->driver_info
& BTUSB_BCM92035
) {
1061 unsigned char cmd
[] = { 0x3b, 0xfc, 0x01, 0x00 };
1062 struct sk_buff
*skb
;
1064 skb
= bt_skb_alloc(sizeof(cmd
), GFP_KERNEL
);
1066 memcpy(skb_put(skb
, sizeof(cmd
)), cmd
, sizeof(cmd
));
1067 skb_queue_tail(&hdev
->driver_init
, skb
);
1072 err
= usb_driver_claim_interface(&btusb_driver
,
1080 err
= hci_register_dev(hdev
);
1086 usb_set_intfdata(intf
, data
);
1091 static void btusb_disconnect(struct usb_interface
*intf
)
1093 struct btusb_data
*data
= usb_get_intfdata(intf
);
1094 struct hci_dev
*hdev
;
1096 BT_DBG("intf %p", intf
);
1102 usb_set_intfdata(data
->intf
, NULL
);
1105 usb_set_intfdata(data
->isoc
, NULL
);
1107 hci_unregister_dev(hdev
);
1109 if (intf
== data
->isoc
)
1110 usb_driver_release_interface(&btusb_driver
, data
->intf
);
1111 else if (data
->isoc
)
1112 usb_driver_release_interface(&btusb_driver
, data
->isoc
);
1118 static int btusb_suspend(struct usb_interface
*intf
, pm_message_t message
)
1120 struct btusb_data
*data
= usb_get_intfdata(intf
);
1122 BT_DBG("intf %p", intf
);
1124 if (data
->suspend_count
++)
1127 spin_lock_irq(&data
->txlock
);
1128 if (!(PMSG_IS_AUTO(message
) && data
->tx_in_flight
)) {
1129 set_bit(BTUSB_SUSPENDING
, &data
->flags
);
1130 spin_unlock_irq(&data
->txlock
);
1132 spin_unlock_irq(&data
->txlock
);
1133 data
->suspend_count
--;
1137 cancel_work_sync(&data
->work
);
1139 btusb_stop_traffic(data
);
1140 usb_kill_anchored_urbs(&data
->tx_anchor
);
1145 static void play_deferred(struct btusb_data
*data
)
1150 while ((urb
= usb_get_from_anchor(&data
->deferred
))) {
1151 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
1155 data
->tx_in_flight
++;
1157 usb_scuttle_anchored_urbs(&data
->deferred
);
1160 static int btusb_resume(struct usb_interface
*intf
)
1162 struct btusb_data
*data
= usb_get_intfdata(intf
);
1163 struct hci_dev
*hdev
= data
->hdev
;
1166 BT_DBG("intf %p", intf
);
1168 if (--data
->suspend_count
)
1171 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
1174 if (test_bit(BTUSB_INTR_RUNNING
, &data
->flags
)) {
1175 err
= btusb_submit_intr_urb(hdev
, GFP_NOIO
);
1177 clear_bit(BTUSB_INTR_RUNNING
, &data
->flags
);
1182 if (test_bit(BTUSB_BULK_RUNNING
, &data
->flags
)) {
1183 err
= btusb_submit_bulk_urb(hdev
, GFP_NOIO
);
1185 clear_bit(BTUSB_BULK_RUNNING
, &data
->flags
);
1189 btusb_submit_bulk_urb(hdev
, GFP_NOIO
);
1192 if (test_bit(BTUSB_ISOC_RUNNING
, &data
->flags
)) {
1193 if (btusb_submit_isoc_urb(hdev
, GFP_NOIO
) < 0)
1194 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
1196 btusb_submit_isoc_urb(hdev
, GFP_NOIO
);
1199 spin_lock_irq(&data
->txlock
);
1200 play_deferred(data
);
1201 clear_bit(BTUSB_SUSPENDING
, &data
->flags
);
1202 spin_unlock_irq(&data
->txlock
);
1203 schedule_work(&data
->work
);
1208 usb_scuttle_anchored_urbs(&data
->deferred
);
1210 spin_lock_irq(&data
->txlock
);
1211 clear_bit(BTUSB_SUSPENDING
, &data
->flags
);
1212 spin_unlock_irq(&data
->txlock
);
1218 static struct usb_driver btusb_driver
= {
1220 .probe
= btusb_probe
,
1221 .disconnect
= btusb_disconnect
,
1223 .suspend
= btusb_suspend
,
1224 .resume
= btusb_resume
,
1226 .id_table
= btusb_table
,
1227 .supports_autosuspend
= 1,
1228 .disable_hub_initiated_lpm
= 1,
1231 module_usb_driver(btusb_driver
);
1233 module_param(ignore_dga
, bool, 0644);
1234 MODULE_PARM_DESC(ignore_dga
, "Ignore devices with id 08fd:0001");
1236 module_param(ignore_csr
, bool, 0644);
1237 MODULE_PARM_DESC(ignore_csr
, "Ignore devices with id 0a12:0001");
1239 module_param(ignore_sniffer
, bool, 0644);
1240 MODULE_PARM_DESC(ignore_sniffer
, "Ignore devices with id 0a12:0002");
1242 module_param(disable_scofix
, bool, 0644);
1243 MODULE_PARM_DESC(disable_scofix
, "Disable fixup of wrong SCO buffer size");
1245 module_param(force_scofix
, bool, 0644);
1246 MODULE_PARM_DESC(force_scofix
, "Force fixup of wrong SCO buffers size");
1248 module_param(reset
, bool, 0644);
1249 MODULE_PARM_DESC(reset
, "Send HCI reset command on initialization");
1251 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1252 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION
);
1253 MODULE_VERSION(VERSION
);
1254 MODULE_LICENSE("GPL");