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(0x04ca, 0x2003) },
100 { USB_DEVICE(0x0489, 0xe042) },
101 { USB_DEVICE(0x413c, 0x8197) },
103 /* Foxconn - Hon Hai */
104 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01) },
106 /*Broadcom devices with vendor specific id */
107 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01) },
109 { } /* Terminating entry */
112 MODULE_DEVICE_TABLE(usb
, btusb_table
);
114 static struct usb_device_id blacklist_table
[] = {
115 /* CSR BlueCore devices */
116 { USB_DEVICE(0x0a12, 0x0001), .driver_info
= BTUSB_CSR
},
118 /* Broadcom BCM2033 without firmware */
119 { USB_DEVICE(0x0a5c, 0x2033), .driver_info
= BTUSB_IGNORE
},
121 /* Atheros 3011 with sflash firmware */
122 { USB_DEVICE(0x0cf3, 0x3002), .driver_info
= BTUSB_IGNORE
},
123 { USB_DEVICE(0x0cf3, 0xe019), .driver_info
= BTUSB_IGNORE
},
124 { USB_DEVICE(0x13d3, 0x3304), .driver_info
= BTUSB_IGNORE
},
125 { USB_DEVICE(0x0930, 0x0215), .driver_info
= BTUSB_IGNORE
},
126 { USB_DEVICE(0x0489, 0xe03d), .driver_info
= BTUSB_IGNORE
},
127 { USB_DEVICE(0x0489, 0xe027), .driver_info
= BTUSB_IGNORE
},
129 /* Atheros AR9285 Malbec with sflash firmware */
130 { USB_DEVICE(0x03f0, 0x311d), .driver_info
= BTUSB_IGNORE
},
132 /* Atheros 3012 with sflash firmware */
133 { USB_DEVICE(0x0cf3, 0x3004), .driver_info
= BTUSB_ATH3012
},
134 { USB_DEVICE(0x0cf3, 0x311d), .driver_info
= BTUSB_ATH3012
},
135 { USB_DEVICE(0x13d3, 0x3375), .driver_info
= BTUSB_ATH3012
},
136 { USB_DEVICE(0x04ca, 0x3005), .driver_info
= BTUSB_ATH3012
},
137 { USB_DEVICE(0x13d3, 0x3362), .driver_info
= BTUSB_ATH3012
},
138 { USB_DEVICE(0x0cf3, 0xe004), .driver_info
= BTUSB_ATH3012
},
139 { USB_DEVICE(0x0930, 0x0219), .driver_info
= BTUSB_ATH3012
},
140 { USB_DEVICE(0x0489, 0xe057), .driver_info
= BTUSB_ATH3012
},
142 /* Atheros AR5BBU12 with sflash firmware */
143 { USB_DEVICE(0x0489, 0xe02c), .driver_info
= BTUSB_IGNORE
},
145 /* Atheros AR5BBU12 with sflash firmware */
146 { USB_DEVICE(0x0489, 0xe03c), .driver_info
= BTUSB_ATH3012
},
147 { USB_DEVICE(0x0489, 0xe036), .driver_info
= BTUSB_ATH3012
},
149 /* Broadcom BCM2035 */
150 { USB_DEVICE(0x0a5c, 0x2035), .driver_info
= BTUSB_WRONG_SCO_MTU
},
151 { USB_DEVICE(0x0a5c, 0x200a), .driver_info
= BTUSB_WRONG_SCO_MTU
},
152 { USB_DEVICE(0x0a5c, 0x2009), .driver_info
= BTUSB_BCM92035
},
154 /* Broadcom BCM2045 */
155 { USB_DEVICE(0x0a5c, 0x2039), .driver_info
= BTUSB_WRONG_SCO_MTU
},
156 { USB_DEVICE(0x0a5c, 0x2101), .driver_info
= BTUSB_WRONG_SCO_MTU
},
158 /* IBM/Lenovo ThinkPad with Broadcom chip */
159 { USB_DEVICE(0x0a5c, 0x201e), .driver_info
= BTUSB_WRONG_SCO_MTU
},
160 { USB_DEVICE(0x0a5c, 0x2110), .driver_info
= BTUSB_WRONG_SCO_MTU
},
162 /* HP laptop with Broadcom chip */
163 { USB_DEVICE(0x03f0, 0x171d), .driver_info
= BTUSB_WRONG_SCO_MTU
},
165 /* Dell laptop with Broadcom chip */
166 { USB_DEVICE(0x413c, 0x8126), .driver_info
= BTUSB_WRONG_SCO_MTU
},
168 /* Dell Wireless 370 and 410 devices */
169 { USB_DEVICE(0x413c, 0x8152), .driver_info
= BTUSB_WRONG_SCO_MTU
},
170 { USB_DEVICE(0x413c, 0x8156), .driver_info
= BTUSB_WRONG_SCO_MTU
},
172 /* Belkin F8T012 and F8T013 devices */
173 { USB_DEVICE(0x050d, 0x0012), .driver_info
= BTUSB_WRONG_SCO_MTU
},
174 { USB_DEVICE(0x050d, 0x0013), .driver_info
= BTUSB_WRONG_SCO_MTU
},
176 /* Asus WL-BTD202 device */
177 { USB_DEVICE(0x0b05, 0x1715), .driver_info
= BTUSB_WRONG_SCO_MTU
},
179 /* Kensington Bluetooth USB adapter */
180 { USB_DEVICE(0x047d, 0x105e), .driver_info
= BTUSB_WRONG_SCO_MTU
},
182 /* RTX Telecom based adapters with buggy SCO support */
183 { USB_DEVICE(0x0400, 0x0807), .driver_info
= BTUSB_BROKEN_ISOC
},
184 { USB_DEVICE(0x0400, 0x080a), .driver_info
= BTUSB_BROKEN_ISOC
},
186 /* CONWISE Technology based adapters with buggy SCO support */
187 { USB_DEVICE(0x0e5e, 0x6622), .driver_info
= BTUSB_BROKEN_ISOC
},
189 /* Digianswer devices */
190 { USB_DEVICE(0x08fd, 0x0001), .driver_info
= BTUSB_DIGIANSWER
},
191 { USB_DEVICE(0x08fd, 0x0002), .driver_info
= BTUSB_IGNORE
},
193 /* CSR BlueCore Bluetooth Sniffer */
194 { USB_DEVICE(0x0a12, 0x0002), .driver_info
= BTUSB_SNIFFER
},
196 /* Frontline ComProbe Bluetooth Sniffer */
197 { USB_DEVICE(0x16d3, 0x0002), .driver_info
= BTUSB_SNIFFER
},
199 { } /* Terminating entry */
202 #define BTUSB_MAX_ISOC_FRAMES 10
204 #define BTUSB_INTR_RUNNING 0
205 #define BTUSB_BULK_RUNNING 1
206 #define BTUSB_ISOC_RUNNING 2
207 #define BTUSB_SUSPENDING 3
208 #define BTUSB_DID_ISO_RESUME 4
211 struct hci_dev
*hdev
;
212 struct usb_device
*udev
;
213 struct usb_interface
*intf
;
214 struct usb_interface
*isoc
;
220 struct work_struct work
;
221 struct work_struct waker
;
223 struct usb_anchor tx_anchor
;
224 struct usb_anchor intr_anchor
;
225 struct usb_anchor bulk_anchor
;
226 struct usb_anchor isoc_anchor
;
227 struct usb_anchor deferred
;
231 struct usb_endpoint_descriptor
*intr_ep
;
232 struct usb_endpoint_descriptor
*bulk_tx_ep
;
233 struct usb_endpoint_descriptor
*bulk_rx_ep
;
234 struct usb_endpoint_descriptor
*isoc_tx_ep
;
235 struct usb_endpoint_descriptor
*isoc_rx_ep
;
239 unsigned int sco_num
;
244 static int inc_tx(struct btusb_data
*data
)
249 spin_lock_irqsave(&data
->txlock
, flags
);
250 rv
= test_bit(BTUSB_SUSPENDING
, &data
->flags
);
252 data
->tx_in_flight
++;
253 spin_unlock_irqrestore(&data
->txlock
, flags
);
258 static void btusb_intr_complete(struct urb
*urb
)
260 struct hci_dev
*hdev
= urb
->context
;
261 struct btusb_data
*data
= hci_get_drvdata(hdev
);
264 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
265 urb
, urb
->status
, urb
->actual_length
);
267 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
270 if (urb
->status
== 0) {
271 hdev
->stat
.byte_rx
+= urb
->actual_length
;
273 if (hci_recv_fragment(hdev
, HCI_EVENT_PKT
,
274 urb
->transfer_buffer
,
275 urb
->actual_length
) < 0) {
276 BT_ERR("%s corrupted event packet", hdev
->name
);
281 if (!test_bit(BTUSB_INTR_RUNNING
, &data
->flags
))
284 usb_mark_last_busy(data
->udev
);
285 usb_anchor_urb(urb
, &data
->intr_anchor
);
287 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
289 /* -EPERM: urb is being killed;
290 * -ENODEV: device got disconnected */
291 if (err
!= -EPERM
&& err
!= -ENODEV
)
292 BT_ERR("%s urb %p failed to resubmit (%d)",
293 hdev
->name
, urb
, -err
);
294 usb_unanchor_urb(urb
);
298 static int btusb_submit_intr_urb(struct hci_dev
*hdev
, gfp_t mem_flags
)
300 struct btusb_data
*data
= hci_get_drvdata(hdev
);
306 BT_DBG("%s", hdev
->name
);
311 urb
= usb_alloc_urb(0, mem_flags
);
315 size
= le16_to_cpu(data
->intr_ep
->wMaxPacketSize
);
317 buf
= kmalloc(size
, mem_flags
);
323 pipe
= usb_rcvintpipe(data
->udev
, data
->intr_ep
->bEndpointAddress
);
325 usb_fill_int_urb(urb
, data
->udev
, pipe
, buf
, size
,
326 btusb_intr_complete
, hdev
,
327 data
->intr_ep
->bInterval
);
329 urb
->transfer_flags
|= URB_FREE_BUFFER
;
331 usb_anchor_urb(urb
, &data
->intr_anchor
);
333 err
= usb_submit_urb(urb
, mem_flags
);
335 if (err
!= -EPERM
&& err
!= -ENODEV
)
336 BT_ERR("%s urb %p submission failed (%d)",
337 hdev
->name
, urb
, -err
);
338 usb_unanchor_urb(urb
);
346 static void btusb_bulk_complete(struct urb
*urb
)
348 struct hci_dev
*hdev
= urb
->context
;
349 struct btusb_data
*data
= hci_get_drvdata(hdev
);
352 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
353 urb
, urb
->status
, urb
->actual_length
);
355 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
358 if (urb
->status
== 0) {
359 hdev
->stat
.byte_rx
+= urb
->actual_length
;
361 if (hci_recv_fragment(hdev
, HCI_ACLDATA_PKT
,
362 urb
->transfer_buffer
,
363 urb
->actual_length
) < 0) {
364 BT_ERR("%s corrupted ACL packet", hdev
->name
);
369 if (!test_bit(BTUSB_BULK_RUNNING
, &data
->flags
))
372 usb_anchor_urb(urb
, &data
->bulk_anchor
);
373 usb_mark_last_busy(data
->udev
);
375 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
377 /* -EPERM: urb is being killed;
378 * -ENODEV: device got disconnected */
379 if (err
!= -EPERM
&& err
!= -ENODEV
)
380 BT_ERR("%s urb %p failed to resubmit (%d)",
381 hdev
->name
, urb
, -err
);
382 usb_unanchor_urb(urb
);
386 static int btusb_submit_bulk_urb(struct hci_dev
*hdev
, gfp_t mem_flags
)
388 struct btusb_data
*data
= hci_get_drvdata(hdev
);
392 int err
, size
= HCI_MAX_FRAME_SIZE
;
394 BT_DBG("%s", hdev
->name
);
396 if (!data
->bulk_rx_ep
)
399 urb
= usb_alloc_urb(0, mem_flags
);
403 buf
= kmalloc(size
, mem_flags
);
409 pipe
= usb_rcvbulkpipe(data
->udev
, data
->bulk_rx_ep
->bEndpointAddress
);
411 usb_fill_bulk_urb(urb
, data
->udev
, pipe
,
412 buf
, size
, btusb_bulk_complete
, hdev
);
414 urb
->transfer_flags
|= URB_FREE_BUFFER
;
416 usb_mark_last_busy(data
->udev
);
417 usb_anchor_urb(urb
, &data
->bulk_anchor
);
419 err
= usb_submit_urb(urb
, mem_flags
);
421 if (err
!= -EPERM
&& err
!= -ENODEV
)
422 BT_ERR("%s urb %p submission failed (%d)",
423 hdev
->name
, urb
, -err
);
424 usb_unanchor_urb(urb
);
432 static void btusb_isoc_complete(struct urb
*urb
)
434 struct hci_dev
*hdev
= urb
->context
;
435 struct btusb_data
*data
= hci_get_drvdata(hdev
);
438 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
439 urb
, urb
->status
, urb
->actual_length
);
441 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
444 if (urb
->status
== 0) {
445 for (i
= 0; i
< urb
->number_of_packets
; i
++) {
446 unsigned int offset
= urb
->iso_frame_desc
[i
].offset
;
447 unsigned int length
= urb
->iso_frame_desc
[i
].actual_length
;
449 if (urb
->iso_frame_desc
[i
].status
)
452 hdev
->stat
.byte_rx
+= length
;
454 if (hci_recv_fragment(hdev
, HCI_SCODATA_PKT
,
455 urb
->transfer_buffer
+ offset
,
457 BT_ERR("%s corrupted SCO packet", hdev
->name
);
463 if (!test_bit(BTUSB_ISOC_RUNNING
, &data
->flags
))
466 usb_anchor_urb(urb
, &data
->isoc_anchor
);
468 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
470 /* -EPERM: urb is being killed;
471 * -ENODEV: device got disconnected */
472 if (err
!= -EPERM
&& err
!= -ENODEV
)
473 BT_ERR("%s urb %p failed to resubmit (%d)",
474 hdev
->name
, urb
, -err
);
475 usb_unanchor_urb(urb
);
479 static inline void __fill_isoc_descriptor(struct urb
*urb
, int len
, int mtu
)
483 BT_DBG("len %d mtu %d", len
, mtu
);
485 for (i
= 0; i
< BTUSB_MAX_ISOC_FRAMES
&& len
>= mtu
;
486 i
++, offset
+= mtu
, len
-= mtu
) {
487 urb
->iso_frame_desc
[i
].offset
= offset
;
488 urb
->iso_frame_desc
[i
].length
= mtu
;
491 if (len
&& i
< BTUSB_MAX_ISOC_FRAMES
) {
492 urb
->iso_frame_desc
[i
].offset
= offset
;
493 urb
->iso_frame_desc
[i
].length
= len
;
497 urb
->number_of_packets
= i
;
500 static int btusb_submit_isoc_urb(struct hci_dev
*hdev
, gfp_t mem_flags
)
502 struct btusb_data
*data
= hci_get_drvdata(hdev
);
508 BT_DBG("%s", hdev
->name
);
510 if (!data
->isoc_rx_ep
)
513 urb
= usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES
, mem_flags
);
517 size
= le16_to_cpu(data
->isoc_rx_ep
->wMaxPacketSize
) *
518 BTUSB_MAX_ISOC_FRAMES
;
520 buf
= kmalloc(size
, mem_flags
);
526 pipe
= usb_rcvisocpipe(data
->udev
, data
->isoc_rx_ep
->bEndpointAddress
);
528 usb_fill_int_urb(urb
, data
->udev
, pipe
, buf
, size
, btusb_isoc_complete
,
529 hdev
, data
->isoc_rx_ep
->bInterval
);
531 urb
->transfer_flags
= URB_FREE_BUFFER
| URB_ISO_ASAP
;
533 __fill_isoc_descriptor(urb
, size
,
534 le16_to_cpu(data
->isoc_rx_ep
->wMaxPacketSize
));
536 usb_anchor_urb(urb
, &data
->isoc_anchor
);
538 err
= usb_submit_urb(urb
, mem_flags
);
540 if (err
!= -EPERM
&& err
!= -ENODEV
)
541 BT_ERR("%s urb %p submission failed (%d)",
542 hdev
->name
, urb
, -err
);
543 usb_unanchor_urb(urb
);
551 static void btusb_tx_complete(struct urb
*urb
)
553 struct sk_buff
*skb
= urb
->context
;
554 struct hci_dev
*hdev
= (struct hci_dev
*) skb
->dev
;
555 struct btusb_data
*data
= hci_get_drvdata(hdev
);
557 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
558 urb
, urb
->status
, urb
->actual_length
);
560 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
564 hdev
->stat
.byte_tx
+= urb
->transfer_buffer_length
;
569 spin_lock(&data
->txlock
);
570 data
->tx_in_flight
--;
571 spin_unlock(&data
->txlock
);
573 kfree(urb
->setup_packet
);
578 static void btusb_isoc_tx_complete(struct urb
*urb
)
580 struct sk_buff
*skb
= urb
->context
;
581 struct hci_dev
*hdev
= (struct hci_dev
*) skb
->dev
;
583 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
584 urb
, urb
->status
, urb
->actual_length
);
586 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
590 hdev
->stat
.byte_tx
+= urb
->transfer_buffer_length
;
595 kfree(urb
->setup_packet
);
600 static int btusb_open(struct hci_dev
*hdev
)
602 struct btusb_data
*data
= hci_get_drvdata(hdev
);
605 BT_DBG("%s", hdev
->name
);
607 err
= usb_autopm_get_interface(data
->intf
);
611 data
->intf
->needs_remote_wakeup
= 1;
613 if (test_and_set_bit(HCI_RUNNING
, &hdev
->flags
))
616 if (test_and_set_bit(BTUSB_INTR_RUNNING
, &data
->flags
))
619 err
= btusb_submit_intr_urb(hdev
, GFP_KERNEL
);
623 err
= btusb_submit_bulk_urb(hdev
, GFP_KERNEL
);
625 usb_kill_anchored_urbs(&data
->intr_anchor
);
629 set_bit(BTUSB_BULK_RUNNING
, &data
->flags
);
630 btusb_submit_bulk_urb(hdev
, GFP_KERNEL
);
633 usb_autopm_put_interface(data
->intf
);
637 clear_bit(BTUSB_INTR_RUNNING
, &data
->flags
);
638 clear_bit(HCI_RUNNING
, &hdev
->flags
);
639 usb_autopm_put_interface(data
->intf
);
643 static void btusb_stop_traffic(struct btusb_data
*data
)
645 usb_kill_anchored_urbs(&data
->intr_anchor
);
646 usb_kill_anchored_urbs(&data
->bulk_anchor
);
647 usb_kill_anchored_urbs(&data
->isoc_anchor
);
650 static int btusb_close(struct hci_dev
*hdev
)
652 struct btusb_data
*data
= hci_get_drvdata(hdev
);
655 BT_DBG("%s", hdev
->name
);
657 if (!test_and_clear_bit(HCI_RUNNING
, &hdev
->flags
))
660 cancel_work_sync(&data
->work
);
661 cancel_work_sync(&data
->waker
);
663 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
664 clear_bit(BTUSB_BULK_RUNNING
, &data
->flags
);
665 clear_bit(BTUSB_INTR_RUNNING
, &data
->flags
);
667 btusb_stop_traffic(data
);
668 err
= usb_autopm_get_interface(data
->intf
);
672 data
->intf
->needs_remote_wakeup
= 0;
673 usb_autopm_put_interface(data
->intf
);
676 usb_scuttle_anchored_urbs(&data
->deferred
);
680 static int btusb_flush(struct hci_dev
*hdev
)
682 struct btusb_data
*data
= hci_get_drvdata(hdev
);
684 BT_DBG("%s", hdev
->name
);
686 usb_kill_anchored_urbs(&data
->tx_anchor
);
691 static int btusb_send_frame(struct sk_buff
*skb
)
693 struct hci_dev
*hdev
= (struct hci_dev
*) skb
->dev
;
694 struct btusb_data
*data
= hci_get_drvdata(hdev
);
695 struct usb_ctrlrequest
*dr
;
700 BT_DBG("%s", hdev
->name
);
702 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
705 switch (bt_cb(skb
)->pkt_type
) {
706 case HCI_COMMAND_PKT
:
707 urb
= usb_alloc_urb(0, GFP_ATOMIC
);
711 dr
= kmalloc(sizeof(*dr
), GFP_ATOMIC
);
717 dr
->bRequestType
= data
->cmdreq_type
;
721 dr
->wLength
= __cpu_to_le16(skb
->len
);
723 pipe
= usb_sndctrlpipe(data
->udev
, 0x00);
725 usb_fill_control_urb(urb
, data
->udev
, pipe
, (void *) dr
,
726 skb
->data
, skb
->len
, btusb_tx_complete
, skb
);
731 case HCI_ACLDATA_PKT
:
732 if (!data
->bulk_tx_ep
)
735 urb
= usb_alloc_urb(0, GFP_ATOMIC
);
739 pipe
= usb_sndbulkpipe(data
->udev
,
740 data
->bulk_tx_ep
->bEndpointAddress
);
742 usb_fill_bulk_urb(urb
, data
->udev
, pipe
,
743 skb
->data
, skb
->len
, btusb_tx_complete
, skb
);
748 case HCI_SCODATA_PKT
:
749 if (!data
->isoc_tx_ep
|| hdev
->conn_hash
.sco_num
< 1)
752 urb
= usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES
, GFP_ATOMIC
);
756 pipe
= usb_sndisocpipe(data
->udev
,
757 data
->isoc_tx_ep
->bEndpointAddress
);
759 usb_fill_int_urb(urb
, data
->udev
, pipe
,
760 skb
->data
, skb
->len
, btusb_isoc_tx_complete
,
761 skb
, data
->isoc_tx_ep
->bInterval
);
763 urb
->transfer_flags
= URB_ISO_ASAP
;
765 __fill_isoc_descriptor(urb
, skb
->len
,
766 le16_to_cpu(data
->isoc_tx_ep
->wMaxPacketSize
));
777 usb_anchor_urb(urb
, &data
->deferred
);
778 schedule_work(&data
->waker
);
784 usb_anchor_urb(urb
, &data
->tx_anchor
);
786 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
788 if (err
!= -EPERM
&& err
!= -ENODEV
)
789 BT_ERR("%s urb %p submission failed (%d)",
790 hdev
->name
, urb
, -err
);
791 kfree(urb
->setup_packet
);
792 usb_unanchor_urb(urb
);
794 usb_mark_last_busy(data
->udev
);
802 static void btusb_notify(struct hci_dev
*hdev
, unsigned int evt
)
804 struct btusb_data
*data
= hci_get_drvdata(hdev
);
806 BT_DBG("%s evt %d", hdev
->name
, evt
);
808 if (hdev
->conn_hash
.sco_num
!= data
->sco_num
) {
809 data
->sco_num
= hdev
->conn_hash
.sco_num
;
810 schedule_work(&data
->work
);
814 static inline int __set_isoc_interface(struct hci_dev
*hdev
, int altsetting
)
816 struct btusb_data
*data
= hci_get_drvdata(hdev
);
817 struct usb_interface
*intf
= data
->isoc
;
818 struct usb_endpoint_descriptor
*ep_desc
;
824 err
= usb_set_interface(data
->udev
, 1, altsetting
);
826 BT_ERR("%s setting interface failed (%d)", hdev
->name
, -err
);
830 data
->isoc_altsetting
= altsetting
;
832 data
->isoc_tx_ep
= NULL
;
833 data
->isoc_rx_ep
= NULL
;
835 for (i
= 0; i
< intf
->cur_altsetting
->desc
.bNumEndpoints
; i
++) {
836 ep_desc
= &intf
->cur_altsetting
->endpoint
[i
].desc
;
838 if (!data
->isoc_tx_ep
&& usb_endpoint_is_isoc_out(ep_desc
)) {
839 data
->isoc_tx_ep
= ep_desc
;
843 if (!data
->isoc_rx_ep
&& usb_endpoint_is_isoc_in(ep_desc
)) {
844 data
->isoc_rx_ep
= ep_desc
;
849 if (!data
->isoc_tx_ep
|| !data
->isoc_rx_ep
) {
850 BT_ERR("%s invalid SCO descriptors", hdev
->name
);
857 static void btusb_work(struct work_struct
*work
)
859 struct btusb_data
*data
= container_of(work
, struct btusb_data
, work
);
860 struct hci_dev
*hdev
= data
->hdev
;
864 if (hdev
->conn_hash
.sco_num
> 0) {
865 if (!test_bit(BTUSB_DID_ISO_RESUME
, &data
->flags
)) {
866 err
= usb_autopm_get_interface(data
->isoc
? data
->isoc
: data
->intf
);
868 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
869 usb_kill_anchored_urbs(&data
->isoc_anchor
);
873 set_bit(BTUSB_DID_ISO_RESUME
, &data
->flags
);
876 if (hdev
->voice_setting
& 0x0020) {
877 static const int alts
[3] = { 2, 4, 5 };
878 new_alts
= alts
[hdev
->conn_hash
.sco_num
- 1];
880 new_alts
= hdev
->conn_hash
.sco_num
;
883 if (data
->isoc_altsetting
!= new_alts
) {
884 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
885 usb_kill_anchored_urbs(&data
->isoc_anchor
);
887 if (__set_isoc_interface(hdev
, new_alts
) < 0)
891 if (!test_and_set_bit(BTUSB_ISOC_RUNNING
, &data
->flags
)) {
892 if (btusb_submit_isoc_urb(hdev
, GFP_KERNEL
) < 0)
893 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
895 btusb_submit_isoc_urb(hdev
, GFP_KERNEL
);
898 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
899 usb_kill_anchored_urbs(&data
->isoc_anchor
);
901 __set_isoc_interface(hdev
, 0);
902 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME
, &data
->flags
))
903 usb_autopm_put_interface(data
->isoc
? data
->isoc
: data
->intf
);
907 static void btusb_waker(struct work_struct
*work
)
909 struct btusb_data
*data
= container_of(work
, struct btusb_data
, waker
);
912 err
= usb_autopm_get_interface(data
->intf
);
916 usb_autopm_put_interface(data
->intf
);
919 static int btusb_probe(struct usb_interface
*intf
,
920 const struct usb_device_id
*id
)
922 struct usb_endpoint_descriptor
*ep_desc
;
923 struct btusb_data
*data
;
924 struct hci_dev
*hdev
;
927 BT_DBG("intf %p id %p", intf
, id
);
929 /* interface numbers are hardcoded in the spec */
930 if (intf
->cur_altsetting
->desc
.bInterfaceNumber
!= 0)
933 if (!id
->driver_info
) {
934 const struct usb_device_id
*match
;
935 match
= usb_match_id(intf
, blacklist_table
);
940 if (id
->driver_info
== BTUSB_IGNORE
)
943 if (ignore_dga
&& id
->driver_info
& BTUSB_DIGIANSWER
)
946 if (ignore_csr
&& id
->driver_info
& BTUSB_CSR
)
949 if (ignore_sniffer
&& id
->driver_info
& BTUSB_SNIFFER
)
952 if (id
->driver_info
& BTUSB_ATH3012
) {
953 struct usb_device
*udev
= interface_to_usbdev(intf
);
955 /* Old firmware would otherwise let ath3k driver load
956 * patch and sysconfig files */
957 if (le16_to_cpu(udev
->descriptor
.bcdDevice
) <= 0x0001)
961 data
= devm_kzalloc(&intf
->dev
, sizeof(*data
), GFP_KERNEL
);
965 for (i
= 0; i
< intf
->cur_altsetting
->desc
.bNumEndpoints
; i
++) {
966 ep_desc
= &intf
->cur_altsetting
->endpoint
[i
].desc
;
968 if (!data
->intr_ep
&& usb_endpoint_is_int_in(ep_desc
)) {
969 data
->intr_ep
= ep_desc
;
973 if (!data
->bulk_tx_ep
&& usb_endpoint_is_bulk_out(ep_desc
)) {
974 data
->bulk_tx_ep
= ep_desc
;
978 if (!data
->bulk_rx_ep
&& usb_endpoint_is_bulk_in(ep_desc
)) {
979 data
->bulk_rx_ep
= ep_desc
;
984 if (!data
->intr_ep
|| !data
->bulk_tx_ep
|| !data
->bulk_rx_ep
)
987 data
->cmdreq_type
= USB_TYPE_CLASS
;
989 data
->udev
= interface_to_usbdev(intf
);
992 spin_lock_init(&data
->lock
);
994 INIT_WORK(&data
->work
, btusb_work
);
995 INIT_WORK(&data
->waker
, btusb_waker
);
996 spin_lock_init(&data
->txlock
);
998 init_usb_anchor(&data
->tx_anchor
);
999 init_usb_anchor(&data
->intr_anchor
);
1000 init_usb_anchor(&data
->bulk_anchor
);
1001 init_usb_anchor(&data
->isoc_anchor
);
1002 init_usb_anchor(&data
->deferred
);
1004 hdev
= hci_alloc_dev();
1008 hdev
->bus
= HCI_USB
;
1009 hci_set_drvdata(hdev
, data
);
1013 SET_HCIDEV_DEV(hdev
, &intf
->dev
);
1015 hdev
->open
= btusb_open
;
1016 hdev
->close
= btusb_close
;
1017 hdev
->flush
= btusb_flush
;
1018 hdev
->send
= btusb_send_frame
;
1019 hdev
->notify
= btusb_notify
;
1021 /* Interface numbers are hardcoded in the specification */
1022 data
->isoc
= usb_ifnum_to_if(data
->udev
, 1);
1025 set_bit(HCI_QUIRK_RESET_ON_CLOSE
, &hdev
->quirks
);
1027 if (force_scofix
|| id
->driver_info
& BTUSB_WRONG_SCO_MTU
) {
1028 if (!disable_scofix
)
1029 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE
, &hdev
->quirks
);
1032 if (id
->driver_info
& BTUSB_BROKEN_ISOC
)
1035 if (id
->driver_info
& BTUSB_DIGIANSWER
) {
1036 data
->cmdreq_type
= USB_TYPE_VENDOR
;
1037 set_bit(HCI_QUIRK_RESET_ON_CLOSE
, &hdev
->quirks
);
1040 if (id
->driver_info
& BTUSB_CSR
) {
1041 struct usb_device
*udev
= data
->udev
;
1043 /* Old firmware would otherwise execute USB reset */
1044 if (le16_to_cpu(udev
->descriptor
.bcdDevice
) < 0x117)
1045 set_bit(HCI_QUIRK_RESET_ON_CLOSE
, &hdev
->quirks
);
1048 if (id
->driver_info
& BTUSB_SNIFFER
) {
1049 struct usb_device
*udev
= data
->udev
;
1051 /* New sniffer firmware has crippled HCI interface */
1052 if (le16_to_cpu(udev
->descriptor
.bcdDevice
) > 0x997)
1053 set_bit(HCI_QUIRK_RAW_DEVICE
, &hdev
->quirks
);
1058 if (id
->driver_info
& BTUSB_BCM92035
) {
1059 unsigned char cmd
[] = { 0x3b, 0xfc, 0x01, 0x00 };
1060 struct sk_buff
*skb
;
1062 skb
= bt_skb_alloc(sizeof(cmd
), GFP_KERNEL
);
1064 memcpy(skb_put(skb
, sizeof(cmd
)), cmd
, sizeof(cmd
));
1065 skb_queue_tail(&hdev
->driver_init
, skb
);
1070 err
= usb_driver_claim_interface(&btusb_driver
,
1078 err
= hci_register_dev(hdev
);
1084 usb_set_intfdata(intf
, data
);
1089 static void btusb_disconnect(struct usb_interface
*intf
)
1091 struct btusb_data
*data
= usb_get_intfdata(intf
);
1092 struct hci_dev
*hdev
;
1094 BT_DBG("intf %p", intf
);
1100 usb_set_intfdata(data
->intf
, NULL
);
1103 usb_set_intfdata(data
->isoc
, NULL
);
1105 hci_unregister_dev(hdev
);
1107 if (intf
== data
->isoc
)
1108 usb_driver_release_interface(&btusb_driver
, data
->intf
);
1109 else if (data
->isoc
)
1110 usb_driver_release_interface(&btusb_driver
, data
->isoc
);
1116 static int btusb_suspend(struct usb_interface
*intf
, pm_message_t message
)
1118 struct btusb_data
*data
= usb_get_intfdata(intf
);
1120 BT_DBG("intf %p", intf
);
1122 if (data
->suspend_count
++)
1125 spin_lock_irq(&data
->txlock
);
1126 if (!(PMSG_IS_AUTO(message
) && data
->tx_in_flight
)) {
1127 set_bit(BTUSB_SUSPENDING
, &data
->flags
);
1128 spin_unlock_irq(&data
->txlock
);
1130 spin_unlock_irq(&data
->txlock
);
1131 data
->suspend_count
--;
1135 cancel_work_sync(&data
->work
);
1137 btusb_stop_traffic(data
);
1138 usb_kill_anchored_urbs(&data
->tx_anchor
);
1143 static void play_deferred(struct btusb_data
*data
)
1148 while ((urb
= usb_get_from_anchor(&data
->deferred
))) {
1149 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
1153 data
->tx_in_flight
++;
1155 usb_scuttle_anchored_urbs(&data
->deferred
);
1158 static int btusb_resume(struct usb_interface
*intf
)
1160 struct btusb_data
*data
= usb_get_intfdata(intf
);
1161 struct hci_dev
*hdev
= data
->hdev
;
1164 BT_DBG("intf %p", intf
);
1166 if (--data
->suspend_count
)
1169 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
1172 if (test_bit(BTUSB_INTR_RUNNING
, &data
->flags
)) {
1173 err
= btusb_submit_intr_urb(hdev
, GFP_NOIO
);
1175 clear_bit(BTUSB_INTR_RUNNING
, &data
->flags
);
1180 if (test_bit(BTUSB_BULK_RUNNING
, &data
->flags
)) {
1181 err
= btusb_submit_bulk_urb(hdev
, GFP_NOIO
);
1183 clear_bit(BTUSB_BULK_RUNNING
, &data
->flags
);
1187 btusb_submit_bulk_urb(hdev
, GFP_NOIO
);
1190 if (test_bit(BTUSB_ISOC_RUNNING
, &data
->flags
)) {
1191 if (btusb_submit_isoc_urb(hdev
, GFP_NOIO
) < 0)
1192 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
1194 btusb_submit_isoc_urb(hdev
, GFP_NOIO
);
1197 spin_lock_irq(&data
->txlock
);
1198 play_deferred(data
);
1199 clear_bit(BTUSB_SUSPENDING
, &data
->flags
);
1200 spin_unlock_irq(&data
->txlock
);
1201 schedule_work(&data
->work
);
1206 usb_scuttle_anchored_urbs(&data
->deferred
);
1208 spin_lock_irq(&data
->txlock
);
1209 clear_bit(BTUSB_SUSPENDING
, &data
->flags
);
1210 spin_unlock_irq(&data
->txlock
);
1216 static struct usb_driver btusb_driver
= {
1218 .probe
= btusb_probe
,
1219 .disconnect
= btusb_disconnect
,
1221 .suspend
= btusb_suspend
,
1222 .resume
= btusb_resume
,
1224 .id_table
= btusb_table
,
1225 .supports_autosuspend
= 1,
1226 .disable_hub_initiated_lpm
= 1,
1229 module_usb_driver(btusb_driver
);
1231 module_param(ignore_dga
, bool, 0644);
1232 MODULE_PARM_DESC(ignore_dga
, "Ignore devices with id 08fd:0001");
1234 module_param(ignore_csr
, bool, 0644);
1235 MODULE_PARM_DESC(ignore_csr
, "Ignore devices with id 0a12:0001");
1237 module_param(ignore_sniffer
, bool, 0644);
1238 MODULE_PARM_DESC(ignore_sniffer
, "Ignore devices with id 0a12:0002");
1240 module_param(disable_scofix
, bool, 0644);
1241 MODULE_PARM_DESC(disable_scofix
, "Disable fixup of wrong SCO buffer size");
1243 module_param(force_scofix
, bool, 0644);
1244 MODULE_PARM_DESC(force_scofix
, "Force fixup of wrong SCO buffers size");
1246 module_param(reset
, bool, 0644);
1247 MODULE_PARM_DESC(reset
, "Send HCI reset command on initialization");
1249 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1250 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION
);
1251 MODULE_VERSION(VERSION
);
1252 MODULE_LICENSE("GPL");