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 bool ignore_dga
;
41 static bool ignore_csr
;
42 static bool ignore_sniffer
;
43 static bool disable_scofix
;
44 static bool force_scofix
;
46 static bool reset
= 1;
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 /* 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(0x0a5c, 0x21e3) },
106 { USB_DEVICE(0x0a5c, 0x21e6) },
107 { USB_DEVICE(0x0a5c, 0x21e8) },
108 { USB_DEVICE(0x0a5c, 0x21f3) },
109 { USB_DEVICE(0x413c, 0x8197) },
111 /* Foxconn - Hon Hai */
112 { USB_DEVICE(0x0489, 0xe033) },
114 { } /* Terminating entry */
117 MODULE_DEVICE_TABLE(usb
, btusb_table
);
119 static struct usb_device_id blacklist_table
[] = {
120 /* CSR BlueCore devices */
121 { USB_DEVICE(0x0a12, 0x0001), .driver_info
= BTUSB_CSR
},
123 /* Broadcom BCM2033 without firmware */
124 { USB_DEVICE(0x0a5c, 0x2033), .driver_info
= BTUSB_IGNORE
},
126 /* Atheros 3011 with sflash firmware */
127 { USB_DEVICE(0x0cf3, 0x3002), .driver_info
= BTUSB_IGNORE
},
128 { USB_DEVICE(0x13d3, 0x3304), .driver_info
= BTUSB_IGNORE
},
129 { USB_DEVICE(0x0930, 0x0215), .driver_info
= BTUSB_IGNORE
},
130 { USB_DEVICE(0x0489, 0xe03d), .driver_info
= BTUSB_IGNORE
},
132 /* Atheros AR9285 Malbec with sflash firmware */
133 { USB_DEVICE(0x03f0, 0x311d), .driver_info
= BTUSB_IGNORE
},
135 /* Atheros 3012 with sflash firmware */
136 { USB_DEVICE(0x0cf3, 0x3004), .driver_info
= BTUSB_ATH3012
},
137 { USB_DEVICE(0x0cf3, 0x311d), .driver_info
= BTUSB_ATH3012
},
138 { USB_DEVICE(0x13d3, 0x3375), .driver_info
= BTUSB_ATH3012
},
139 { USB_DEVICE(0x04ca, 0x3005), .driver_info
= BTUSB_ATH3012
},
140 { USB_DEVICE(0x13d3, 0x3362), .driver_info
= BTUSB_ATH3012
},
141 { USB_DEVICE(0x0cf3, 0xe004), .driver_info
= BTUSB_ATH3012
},
143 /* Atheros AR5BBU12 with sflash firmware */
144 { USB_DEVICE(0x0489, 0xe02c), .driver_info
= BTUSB_IGNORE
},
146 /* Broadcom BCM2035 */
147 { USB_DEVICE(0x0a5c, 0x2035), .driver_info
= BTUSB_WRONG_SCO_MTU
},
148 { USB_DEVICE(0x0a5c, 0x200a), .driver_info
= BTUSB_WRONG_SCO_MTU
},
149 { USB_DEVICE(0x0a5c, 0x2009), .driver_info
= BTUSB_BCM92035
},
151 /* Broadcom BCM2045 */
152 { USB_DEVICE(0x0a5c, 0x2039), .driver_info
= BTUSB_WRONG_SCO_MTU
},
153 { USB_DEVICE(0x0a5c, 0x2101), .driver_info
= BTUSB_WRONG_SCO_MTU
},
155 /* IBM/Lenovo ThinkPad with Broadcom chip */
156 { USB_DEVICE(0x0a5c, 0x201e), .driver_info
= BTUSB_WRONG_SCO_MTU
},
157 { USB_DEVICE(0x0a5c, 0x2110), .driver_info
= BTUSB_WRONG_SCO_MTU
},
159 /* HP laptop with Broadcom chip */
160 { USB_DEVICE(0x03f0, 0x171d), .driver_info
= BTUSB_WRONG_SCO_MTU
},
162 /* Dell laptop with Broadcom chip */
163 { USB_DEVICE(0x413c, 0x8126), .driver_info
= BTUSB_WRONG_SCO_MTU
},
165 /* Dell Wireless 370 and 410 devices */
166 { USB_DEVICE(0x413c, 0x8152), .driver_info
= BTUSB_WRONG_SCO_MTU
},
167 { USB_DEVICE(0x413c, 0x8156), .driver_info
= BTUSB_WRONG_SCO_MTU
},
169 /* Belkin F8T012 and F8T013 devices */
170 { USB_DEVICE(0x050d, 0x0012), .driver_info
= BTUSB_WRONG_SCO_MTU
},
171 { USB_DEVICE(0x050d, 0x0013), .driver_info
= BTUSB_WRONG_SCO_MTU
},
173 /* Asus WL-BTD202 device */
174 { USB_DEVICE(0x0b05, 0x1715), .driver_info
= BTUSB_WRONG_SCO_MTU
},
176 /* Kensington Bluetooth USB adapter */
177 { USB_DEVICE(0x047d, 0x105e), .driver_info
= BTUSB_WRONG_SCO_MTU
},
179 /* RTX Telecom based adapters with buggy SCO support */
180 { USB_DEVICE(0x0400, 0x0807), .driver_info
= BTUSB_BROKEN_ISOC
},
181 { USB_DEVICE(0x0400, 0x080a), .driver_info
= BTUSB_BROKEN_ISOC
},
183 /* CONWISE Technology based adapters with buggy SCO support */
184 { USB_DEVICE(0x0e5e, 0x6622), .driver_info
= BTUSB_BROKEN_ISOC
},
186 /* Digianswer devices */
187 { USB_DEVICE(0x08fd, 0x0001), .driver_info
= BTUSB_DIGIANSWER
},
188 { USB_DEVICE(0x08fd, 0x0002), .driver_info
= BTUSB_IGNORE
},
190 /* CSR BlueCore Bluetooth Sniffer */
191 { USB_DEVICE(0x0a12, 0x0002), .driver_info
= BTUSB_SNIFFER
},
193 /* Frontline ComProbe Bluetooth Sniffer */
194 { USB_DEVICE(0x16d3, 0x0002), .driver_info
= BTUSB_SNIFFER
},
196 { } /* Terminating entry */
199 #define BTUSB_MAX_ISOC_FRAMES 10
201 #define BTUSB_INTR_RUNNING 0
202 #define BTUSB_BULK_RUNNING 1
203 #define BTUSB_ISOC_RUNNING 2
204 #define BTUSB_SUSPENDING 3
205 #define BTUSB_DID_ISO_RESUME 4
208 struct hci_dev
*hdev
;
209 struct usb_device
*udev
;
210 struct usb_interface
*intf
;
211 struct usb_interface
*isoc
;
217 struct work_struct work
;
218 struct work_struct waker
;
220 struct usb_anchor tx_anchor
;
221 struct usb_anchor intr_anchor
;
222 struct usb_anchor bulk_anchor
;
223 struct usb_anchor isoc_anchor
;
224 struct usb_anchor deferred
;
228 struct usb_endpoint_descriptor
*intr_ep
;
229 struct usb_endpoint_descriptor
*bulk_tx_ep
;
230 struct usb_endpoint_descriptor
*bulk_rx_ep
;
231 struct usb_endpoint_descriptor
*isoc_tx_ep
;
232 struct usb_endpoint_descriptor
*isoc_rx_ep
;
236 unsigned int sco_num
;
241 static int inc_tx(struct btusb_data
*data
)
246 spin_lock_irqsave(&data
->txlock
, flags
);
247 rv
= test_bit(BTUSB_SUSPENDING
, &data
->flags
);
249 data
->tx_in_flight
++;
250 spin_unlock_irqrestore(&data
->txlock
, flags
);
255 static void btusb_intr_complete(struct urb
*urb
)
257 struct hci_dev
*hdev
= urb
->context
;
258 struct btusb_data
*data
= hci_get_drvdata(hdev
);
261 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
262 urb
, urb
->status
, urb
->actual_length
);
264 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
267 if (urb
->status
== 0) {
268 hdev
->stat
.byte_rx
+= urb
->actual_length
;
270 if (hci_recv_fragment(hdev
, HCI_EVENT_PKT
,
271 urb
->transfer_buffer
,
272 urb
->actual_length
) < 0) {
273 BT_ERR("%s corrupted event packet", hdev
->name
);
278 if (!test_bit(BTUSB_INTR_RUNNING
, &data
->flags
))
281 usb_mark_last_busy(data
->udev
);
282 usb_anchor_urb(urb
, &data
->intr_anchor
);
284 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
286 /* -EPERM: urb is being killed;
287 * -ENODEV: device got disconnected */
288 if (err
!= -EPERM
&& err
!= -ENODEV
)
289 BT_ERR("%s urb %p failed to resubmit (%d)",
290 hdev
->name
, urb
, -err
);
291 usb_unanchor_urb(urb
);
295 static int btusb_submit_intr_urb(struct hci_dev
*hdev
, gfp_t mem_flags
)
297 struct btusb_data
*data
= hci_get_drvdata(hdev
);
303 BT_DBG("%s", hdev
->name
);
308 urb
= usb_alloc_urb(0, mem_flags
);
312 size
= le16_to_cpu(data
->intr_ep
->wMaxPacketSize
);
314 buf
= kmalloc(size
, mem_flags
);
320 pipe
= usb_rcvintpipe(data
->udev
, data
->intr_ep
->bEndpointAddress
);
322 usb_fill_int_urb(urb
, data
->udev
, pipe
, buf
, size
,
323 btusb_intr_complete
, hdev
,
324 data
->intr_ep
->bInterval
);
326 urb
->transfer_flags
|= URB_FREE_BUFFER
;
328 usb_anchor_urb(urb
, &data
->intr_anchor
);
330 err
= usb_submit_urb(urb
, mem_flags
);
332 if (err
!= -EPERM
&& err
!= -ENODEV
)
333 BT_ERR("%s urb %p submission failed (%d)",
334 hdev
->name
, urb
, -err
);
335 usb_unanchor_urb(urb
);
343 static void btusb_bulk_complete(struct urb
*urb
)
345 struct hci_dev
*hdev
= urb
->context
;
346 struct btusb_data
*data
= hci_get_drvdata(hdev
);
349 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
350 urb
, urb
->status
, urb
->actual_length
);
352 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
355 if (urb
->status
== 0) {
356 hdev
->stat
.byte_rx
+= urb
->actual_length
;
358 if (hci_recv_fragment(hdev
, HCI_ACLDATA_PKT
,
359 urb
->transfer_buffer
,
360 urb
->actual_length
) < 0) {
361 BT_ERR("%s corrupted ACL packet", hdev
->name
);
366 if (!test_bit(BTUSB_BULK_RUNNING
, &data
->flags
))
369 usb_anchor_urb(urb
, &data
->bulk_anchor
);
370 usb_mark_last_busy(data
->udev
);
372 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
374 /* -EPERM: urb is being killed;
375 * -ENODEV: device got disconnected */
376 if (err
!= -EPERM
&& err
!= -ENODEV
)
377 BT_ERR("%s urb %p failed to resubmit (%d)",
378 hdev
->name
, urb
, -err
);
379 usb_unanchor_urb(urb
);
383 static int btusb_submit_bulk_urb(struct hci_dev
*hdev
, gfp_t mem_flags
)
385 struct btusb_data
*data
= hci_get_drvdata(hdev
);
389 int err
, size
= HCI_MAX_FRAME_SIZE
;
391 BT_DBG("%s", hdev
->name
);
393 if (!data
->bulk_rx_ep
)
396 urb
= usb_alloc_urb(0, mem_flags
);
400 buf
= kmalloc(size
, mem_flags
);
406 pipe
= usb_rcvbulkpipe(data
->udev
, data
->bulk_rx_ep
->bEndpointAddress
);
408 usb_fill_bulk_urb(urb
, data
->udev
, pipe
,
409 buf
, size
, btusb_bulk_complete
, hdev
);
411 urb
->transfer_flags
|= URB_FREE_BUFFER
;
413 usb_mark_last_busy(data
->udev
);
414 usb_anchor_urb(urb
, &data
->bulk_anchor
);
416 err
= usb_submit_urb(urb
, mem_flags
);
418 if (err
!= -EPERM
&& err
!= -ENODEV
)
419 BT_ERR("%s urb %p submission failed (%d)",
420 hdev
->name
, urb
, -err
);
421 usb_unanchor_urb(urb
);
429 static void btusb_isoc_complete(struct urb
*urb
)
431 struct hci_dev
*hdev
= urb
->context
;
432 struct btusb_data
*data
= hci_get_drvdata(hdev
);
435 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
436 urb
, urb
->status
, urb
->actual_length
);
438 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
441 if (urb
->status
== 0) {
442 for (i
= 0; i
< urb
->number_of_packets
; i
++) {
443 unsigned int offset
= urb
->iso_frame_desc
[i
].offset
;
444 unsigned int length
= urb
->iso_frame_desc
[i
].actual_length
;
446 if (urb
->iso_frame_desc
[i
].status
)
449 hdev
->stat
.byte_rx
+= length
;
451 if (hci_recv_fragment(hdev
, HCI_SCODATA_PKT
,
452 urb
->transfer_buffer
+ offset
,
454 BT_ERR("%s corrupted SCO packet", hdev
->name
);
460 if (!test_bit(BTUSB_ISOC_RUNNING
, &data
->flags
))
463 usb_anchor_urb(urb
, &data
->isoc_anchor
);
465 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
467 /* -EPERM: urb is being killed;
468 * -ENODEV: device got disconnected */
469 if (err
!= -EPERM
&& err
!= -ENODEV
)
470 BT_ERR("%s urb %p failed to resubmit (%d)",
471 hdev
->name
, urb
, -err
);
472 usb_unanchor_urb(urb
);
476 static inline void __fill_isoc_descriptor(struct urb
*urb
, int len
, int mtu
)
480 BT_DBG("len %d mtu %d", len
, mtu
);
482 for (i
= 0; i
< BTUSB_MAX_ISOC_FRAMES
&& len
>= mtu
;
483 i
++, offset
+= mtu
, len
-= mtu
) {
484 urb
->iso_frame_desc
[i
].offset
= offset
;
485 urb
->iso_frame_desc
[i
].length
= mtu
;
488 if (len
&& i
< BTUSB_MAX_ISOC_FRAMES
) {
489 urb
->iso_frame_desc
[i
].offset
= offset
;
490 urb
->iso_frame_desc
[i
].length
= len
;
494 urb
->number_of_packets
= i
;
497 static int btusb_submit_isoc_urb(struct hci_dev
*hdev
, gfp_t mem_flags
)
499 struct btusb_data
*data
= hci_get_drvdata(hdev
);
505 BT_DBG("%s", hdev
->name
);
507 if (!data
->isoc_rx_ep
)
510 urb
= usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES
, mem_flags
);
514 size
= le16_to_cpu(data
->isoc_rx_ep
->wMaxPacketSize
) *
515 BTUSB_MAX_ISOC_FRAMES
;
517 buf
= kmalloc(size
, mem_flags
);
523 pipe
= usb_rcvisocpipe(data
->udev
, data
->isoc_rx_ep
->bEndpointAddress
);
525 usb_fill_int_urb(urb
, data
->udev
, pipe
, buf
, size
, btusb_isoc_complete
,
526 hdev
, data
->isoc_rx_ep
->bInterval
);
528 urb
->transfer_flags
= URB_FREE_BUFFER
| URB_ISO_ASAP
;
530 __fill_isoc_descriptor(urb
, size
,
531 le16_to_cpu(data
->isoc_rx_ep
->wMaxPacketSize
));
533 usb_anchor_urb(urb
, &data
->isoc_anchor
);
535 err
= usb_submit_urb(urb
, mem_flags
);
537 if (err
!= -EPERM
&& err
!= -ENODEV
)
538 BT_ERR("%s urb %p submission failed (%d)",
539 hdev
->name
, urb
, -err
);
540 usb_unanchor_urb(urb
);
548 static void btusb_tx_complete(struct urb
*urb
)
550 struct sk_buff
*skb
= urb
->context
;
551 struct hci_dev
*hdev
= (struct hci_dev
*) skb
->dev
;
552 struct btusb_data
*data
= hci_get_drvdata(hdev
);
554 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
555 urb
, urb
->status
, urb
->actual_length
);
557 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
561 hdev
->stat
.byte_tx
+= urb
->transfer_buffer_length
;
566 spin_lock(&data
->txlock
);
567 data
->tx_in_flight
--;
568 spin_unlock(&data
->txlock
);
570 kfree(urb
->setup_packet
);
575 static void btusb_isoc_tx_complete(struct urb
*urb
)
577 struct sk_buff
*skb
= urb
->context
;
578 struct hci_dev
*hdev
= (struct hci_dev
*) skb
->dev
;
580 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
581 urb
, urb
->status
, urb
->actual_length
);
583 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
587 hdev
->stat
.byte_tx
+= urb
->transfer_buffer_length
;
592 kfree(urb
->setup_packet
);
597 static int btusb_open(struct hci_dev
*hdev
)
599 struct btusb_data
*data
= hci_get_drvdata(hdev
);
602 BT_DBG("%s", hdev
->name
);
604 err
= usb_autopm_get_interface(data
->intf
);
608 data
->intf
->needs_remote_wakeup
= 1;
610 if (test_and_set_bit(HCI_RUNNING
, &hdev
->flags
))
613 if (test_and_set_bit(BTUSB_INTR_RUNNING
, &data
->flags
))
616 err
= btusb_submit_intr_urb(hdev
, GFP_KERNEL
);
620 err
= btusb_submit_bulk_urb(hdev
, GFP_KERNEL
);
622 usb_kill_anchored_urbs(&data
->intr_anchor
);
626 set_bit(BTUSB_BULK_RUNNING
, &data
->flags
);
627 btusb_submit_bulk_urb(hdev
, GFP_KERNEL
);
630 usb_autopm_put_interface(data
->intf
);
634 clear_bit(BTUSB_INTR_RUNNING
, &data
->flags
);
635 clear_bit(HCI_RUNNING
, &hdev
->flags
);
636 usb_autopm_put_interface(data
->intf
);
640 static void btusb_stop_traffic(struct btusb_data
*data
)
642 usb_kill_anchored_urbs(&data
->intr_anchor
);
643 usb_kill_anchored_urbs(&data
->bulk_anchor
);
644 usb_kill_anchored_urbs(&data
->isoc_anchor
);
647 static int btusb_close(struct hci_dev
*hdev
)
649 struct btusb_data
*data
= hci_get_drvdata(hdev
);
652 BT_DBG("%s", hdev
->name
);
654 if (!test_and_clear_bit(HCI_RUNNING
, &hdev
->flags
))
657 cancel_work_sync(&data
->work
);
658 cancel_work_sync(&data
->waker
);
660 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
661 clear_bit(BTUSB_BULK_RUNNING
, &data
->flags
);
662 clear_bit(BTUSB_INTR_RUNNING
, &data
->flags
);
664 btusb_stop_traffic(data
);
665 err
= usb_autopm_get_interface(data
->intf
);
669 data
->intf
->needs_remote_wakeup
= 0;
670 usb_autopm_put_interface(data
->intf
);
673 usb_scuttle_anchored_urbs(&data
->deferred
);
677 static int btusb_flush(struct hci_dev
*hdev
)
679 struct btusb_data
*data
= hci_get_drvdata(hdev
);
681 BT_DBG("%s", hdev
->name
);
683 usb_kill_anchored_urbs(&data
->tx_anchor
);
688 static int btusb_send_frame(struct sk_buff
*skb
)
690 struct hci_dev
*hdev
= (struct hci_dev
*) skb
->dev
;
691 struct btusb_data
*data
= hci_get_drvdata(hdev
);
692 struct usb_ctrlrequest
*dr
;
697 BT_DBG("%s", hdev
->name
);
699 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
702 switch (bt_cb(skb
)->pkt_type
) {
703 case HCI_COMMAND_PKT
:
704 urb
= usb_alloc_urb(0, GFP_ATOMIC
);
708 dr
= kmalloc(sizeof(*dr
), GFP_ATOMIC
);
714 dr
->bRequestType
= data
->cmdreq_type
;
718 dr
->wLength
= __cpu_to_le16(skb
->len
);
720 pipe
= usb_sndctrlpipe(data
->udev
, 0x00);
722 usb_fill_control_urb(urb
, data
->udev
, pipe
, (void *) dr
,
723 skb
->data
, skb
->len
, btusb_tx_complete
, skb
);
728 case HCI_ACLDATA_PKT
:
729 if (!data
->bulk_tx_ep
)
732 urb
= usb_alloc_urb(0, GFP_ATOMIC
);
736 pipe
= usb_sndbulkpipe(data
->udev
,
737 data
->bulk_tx_ep
->bEndpointAddress
);
739 usb_fill_bulk_urb(urb
, data
->udev
, pipe
,
740 skb
->data
, skb
->len
, btusb_tx_complete
, skb
);
745 case HCI_SCODATA_PKT
:
746 if (!data
->isoc_tx_ep
|| hdev
->conn_hash
.sco_num
< 1)
749 urb
= usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES
, GFP_ATOMIC
);
753 pipe
= usb_sndisocpipe(data
->udev
,
754 data
->isoc_tx_ep
->bEndpointAddress
);
756 usb_fill_int_urb(urb
, data
->udev
, pipe
,
757 skb
->data
, skb
->len
, btusb_isoc_tx_complete
,
758 skb
, data
->isoc_tx_ep
->bInterval
);
760 urb
->transfer_flags
= URB_ISO_ASAP
;
762 __fill_isoc_descriptor(urb
, skb
->len
,
763 le16_to_cpu(data
->isoc_tx_ep
->wMaxPacketSize
));
774 usb_anchor_urb(urb
, &data
->deferred
);
775 schedule_work(&data
->waker
);
781 usb_anchor_urb(urb
, &data
->tx_anchor
);
783 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
785 if (err
!= -EPERM
&& err
!= -ENODEV
)
786 BT_ERR("%s urb %p submission failed (%d)",
787 hdev
->name
, urb
, -err
);
788 kfree(urb
->setup_packet
);
789 usb_unanchor_urb(urb
);
791 usb_mark_last_busy(data
->udev
);
799 static void btusb_notify(struct hci_dev
*hdev
, unsigned int evt
)
801 struct btusb_data
*data
= hci_get_drvdata(hdev
);
803 BT_DBG("%s evt %d", hdev
->name
, evt
);
805 if (hdev
->conn_hash
.sco_num
!= data
->sco_num
) {
806 data
->sco_num
= hdev
->conn_hash
.sco_num
;
807 schedule_work(&data
->work
);
811 static inline int __set_isoc_interface(struct hci_dev
*hdev
, int altsetting
)
813 struct btusb_data
*data
= hci_get_drvdata(hdev
);
814 struct usb_interface
*intf
= data
->isoc
;
815 struct usb_endpoint_descriptor
*ep_desc
;
821 err
= usb_set_interface(data
->udev
, 1, altsetting
);
823 BT_ERR("%s setting interface failed (%d)", hdev
->name
, -err
);
827 data
->isoc_altsetting
= altsetting
;
829 data
->isoc_tx_ep
= NULL
;
830 data
->isoc_rx_ep
= NULL
;
832 for (i
= 0; i
< intf
->cur_altsetting
->desc
.bNumEndpoints
; i
++) {
833 ep_desc
= &intf
->cur_altsetting
->endpoint
[i
].desc
;
835 if (!data
->isoc_tx_ep
&& usb_endpoint_is_isoc_out(ep_desc
)) {
836 data
->isoc_tx_ep
= ep_desc
;
840 if (!data
->isoc_rx_ep
&& usb_endpoint_is_isoc_in(ep_desc
)) {
841 data
->isoc_rx_ep
= ep_desc
;
846 if (!data
->isoc_tx_ep
|| !data
->isoc_rx_ep
) {
847 BT_ERR("%s invalid SCO descriptors", hdev
->name
);
854 static void btusb_work(struct work_struct
*work
)
856 struct btusb_data
*data
= container_of(work
, struct btusb_data
, work
);
857 struct hci_dev
*hdev
= data
->hdev
;
860 if (hdev
->conn_hash
.sco_num
> 0) {
861 if (!test_bit(BTUSB_DID_ISO_RESUME
, &data
->flags
)) {
862 err
= usb_autopm_get_interface(data
->isoc
? data
->isoc
: data
->intf
);
864 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
865 usb_kill_anchored_urbs(&data
->isoc_anchor
);
869 set_bit(BTUSB_DID_ISO_RESUME
, &data
->flags
);
871 if (data
->isoc_altsetting
!= 2) {
872 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
873 usb_kill_anchored_urbs(&data
->isoc_anchor
);
875 if (__set_isoc_interface(hdev
, 2) < 0)
879 if (!test_and_set_bit(BTUSB_ISOC_RUNNING
, &data
->flags
)) {
880 if (btusb_submit_isoc_urb(hdev
, GFP_KERNEL
) < 0)
881 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
883 btusb_submit_isoc_urb(hdev
, GFP_KERNEL
);
886 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
887 usb_kill_anchored_urbs(&data
->isoc_anchor
);
889 __set_isoc_interface(hdev
, 0);
890 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME
, &data
->flags
))
891 usb_autopm_put_interface(data
->isoc
? data
->isoc
: data
->intf
);
895 static void btusb_waker(struct work_struct
*work
)
897 struct btusb_data
*data
= container_of(work
, struct btusb_data
, waker
);
900 err
= usb_autopm_get_interface(data
->intf
);
904 usb_autopm_put_interface(data
->intf
);
907 static int btusb_probe(struct usb_interface
*intf
,
908 const struct usb_device_id
*id
)
910 struct usb_endpoint_descriptor
*ep_desc
;
911 struct btusb_data
*data
;
912 struct hci_dev
*hdev
;
915 BT_DBG("intf %p id %p", intf
, id
);
917 /* interface numbers are hardcoded in the spec */
918 if (intf
->cur_altsetting
->desc
.bInterfaceNumber
!= 0)
921 if (!id
->driver_info
) {
922 const struct usb_device_id
*match
;
923 match
= usb_match_id(intf
, blacklist_table
);
928 if (id
->driver_info
== BTUSB_IGNORE
)
931 if (ignore_dga
&& id
->driver_info
& BTUSB_DIGIANSWER
)
934 if (ignore_csr
&& id
->driver_info
& BTUSB_CSR
)
937 if (ignore_sniffer
&& id
->driver_info
& BTUSB_SNIFFER
)
940 if (id
->driver_info
& BTUSB_ATH3012
) {
941 struct usb_device
*udev
= interface_to_usbdev(intf
);
943 /* Old firmware would otherwise let ath3k driver load
944 * patch and sysconfig files */
945 if (le16_to_cpu(udev
->descriptor
.bcdDevice
) <= 0x0001)
949 data
= kzalloc(sizeof(*data
), GFP_KERNEL
);
953 for (i
= 0; i
< intf
->cur_altsetting
->desc
.bNumEndpoints
; i
++) {
954 ep_desc
= &intf
->cur_altsetting
->endpoint
[i
].desc
;
956 if (!data
->intr_ep
&& usb_endpoint_is_int_in(ep_desc
)) {
957 data
->intr_ep
= ep_desc
;
961 if (!data
->bulk_tx_ep
&& usb_endpoint_is_bulk_out(ep_desc
)) {
962 data
->bulk_tx_ep
= ep_desc
;
966 if (!data
->bulk_rx_ep
&& usb_endpoint_is_bulk_in(ep_desc
)) {
967 data
->bulk_rx_ep
= ep_desc
;
972 if (!data
->intr_ep
|| !data
->bulk_tx_ep
|| !data
->bulk_rx_ep
) {
977 data
->cmdreq_type
= USB_TYPE_CLASS
;
979 data
->udev
= interface_to_usbdev(intf
);
982 spin_lock_init(&data
->lock
);
984 INIT_WORK(&data
->work
, btusb_work
);
985 INIT_WORK(&data
->waker
, btusb_waker
);
986 spin_lock_init(&data
->txlock
);
988 init_usb_anchor(&data
->tx_anchor
);
989 init_usb_anchor(&data
->intr_anchor
);
990 init_usb_anchor(&data
->bulk_anchor
);
991 init_usb_anchor(&data
->isoc_anchor
);
992 init_usb_anchor(&data
->deferred
);
994 hdev
= hci_alloc_dev();
1000 hdev
->bus
= HCI_USB
;
1001 hci_set_drvdata(hdev
, data
);
1005 SET_HCIDEV_DEV(hdev
, &intf
->dev
);
1007 hdev
->open
= btusb_open
;
1008 hdev
->close
= btusb_close
;
1009 hdev
->flush
= btusb_flush
;
1010 hdev
->send
= btusb_send_frame
;
1011 hdev
->notify
= btusb_notify
;
1013 /* Interface numbers are hardcoded in the specification */
1014 data
->isoc
= usb_ifnum_to_if(data
->udev
, 1);
1017 set_bit(HCI_QUIRK_NO_RESET
, &hdev
->quirks
);
1019 if (force_scofix
|| id
->driver_info
& BTUSB_WRONG_SCO_MTU
) {
1020 if (!disable_scofix
)
1021 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE
, &hdev
->quirks
);
1024 if (id
->driver_info
& BTUSB_BROKEN_ISOC
)
1027 if (id
->driver_info
& BTUSB_DIGIANSWER
) {
1028 data
->cmdreq_type
= USB_TYPE_VENDOR
;
1029 set_bit(HCI_QUIRK_NO_RESET
, &hdev
->quirks
);
1032 if (id
->driver_info
& BTUSB_CSR
) {
1033 struct usb_device
*udev
= data
->udev
;
1035 /* Old firmware would otherwise execute USB reset */
1036 if (le16_to_cpu(udev
->descriptor
.bcdDevice
) < 0x117)
1037 set_bit(HCI_QUIRK_NO_RESET
, &hdev
->quirks
);
1040 if (id
->driver_info
& BTUSB_SNIFFER
) {
1041 struct usb_device
*udev
= data
->udev
;
1043 /* New sniffer firmware has crippled HCI interface */
1044 if (le16_to_cpu(udev
->descriptor
.bcdDevice
) > 0x997)
1045 set_bit(HCI_QUIRK_RAW_DEVICE
, &hdev
->quirks
);
1050 if (id
->driver_info
& BTUSB_BCM92035
) {
1051 unsigned char cmd
[] = { 0x3b, 0xfc, 0x01, 0x00 };
1052 struct sk_buff
*skb
;
1054 skb
= bt_skb_alloc(sizeof(cmd
), GFP_KERNEL
);
1056 memcpy(skb_put(skb
, sizeof(cmd
)), cmd
, sizeof(cmd
));
1057 skb_queue_tail(&hdev
->driver_init
, skb
);
1062 err
= usb_driver_claim_interface(&btusb_driver
,
1071 err
= hci_register_dev(hdev
);
1078 usb_set_intfdata(intf
, data
);
1083 static void btusb_disconnect(struct usb_interface
*intf
)
1085 struct btusb_data
*data
= usb_get_intfdata(intf
);
1086 struct hci_dev
*hdev
;
1088 BT_DBG("intf %p", intf
);
1094 usb_set_intfdata(data
->intf
, NULL
);
1097 usb_set_intfdata(data
->isoc
, NULL
);
1099 hci_unregister_dev(hdev
);
1101 if (intf
== data
->isoc
)
1102 usb_driver_release_interface(&btusb_driver
, data
->intf
);
1103 else if (data
->isoc
)
1104 usb_driver_release_interface(&btusb_driver
, data
->isoc
);
1111 static int btusb_suspend(struct usb_interface
*intf
, pm_message_t message
)
1113 struct btusb_data
*data
= usb_get_intfdata(intf
);
1115 BT_DBG("intf %p", intf
);
1117 if (data
->suspend_count
++)
1120 spin_lock_irq(&data
->txlock
);
1121 if (!(PMSG_IS_AUTO(message
) && data
->tx_in_flight
)) {
1122 set_bit(BTUSB_SUSPENDING
, &data
->flags
);
1123 spin_unlock_irq(&data
->txlock
);
1125 spin_unlock_irq(&data
->txlock
);
1126 data
->suspend_count
--;
1130 cancel_work_sync(&data
->work
);
1132 btusb_stop_traffic(data
);
1133 usb_kill_anchored_urbs(&data
->tx_anchor
);
1138 static void play_deferred(struct btusb_data
*data
)
1143 while ((urb
= usb_get_from_anchor(&data
->deferred
))) {
1144 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
1148 data
->tx_in_flight
++;
1150 usb_scuttle_anchored_urbs(&data
->deferred
);
1153 static int btusb_resume(struct usb_interface
*intf
)
1155 struct btusb_data
*data
= usb_get_intfdata(intf
);
1156 struct hci_dev
*hdev
= data
->hdev
;
1159 BT_DBG("intf %p", intf
);
1161 if (--data
->suspend_count
)
1164 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
1167 if (test_bit(BTUSB_INTR_RUNNING
, &data
->flags
)) {
1168 err
= btusb_submit_intr_urb(hdev
, GFP_NOIO
);
1170 clear_bit(BTUSB_INTR_RUNNING
, &data
->flags
);
1175 if (test_bit(BTUSB_BULK_RUNNING
, &data
->flags
)) {
1176 err
= btusb_submit_bulk_urb(hdev
, GFP_NOIO
);
1178 clear_bit(BTUSB_BULK_RUNNING
, &data
->flags
);
1182 btusb_submit_bulk_urb(hdev
, GFP_NOIO
);
1185 if (test_bit(BTUSB_ISOC_RUNNING
, &data
->flags
)) {
1186 if (btusb_submit_isoc_urb(hdev
, GFP_NOIO
) < 0)
1187 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
1189 btusb_submit_isoc_urb(hdev
, GFP_NOIO
);
1192 spin_lock_irq(&data
->txlock
);
1193 play_deferred(data
);
1194 clear_bit(BTUSB_SUSPENDING
, &data
->flags
);
1195 spin_unlock_irq(&data
->txlock
);
1196 schedule_work(&data
->work
);
1201 usb_scuttle_anchored_urbs(&data
->deferred
);
1203 spin_lock_irq(&data
->txlock
);
1204 clear_bit(BTUSB_SUSPENDING
, &data
->flags
);
1205 spin_unlock_irq(&data
->txlock
);
1211 static struct usb_driver btusb_driver
= {
1213 .probe
= btusb_probe
,
1214 .disconnect
= btusb_disconnect
,
1216 .suspend
= btusb_suspend
,
1217 .resume
= btusb_resume
,
1219 .id_table
= btusb_table
,
1220 .supports_autosuspend
= 1,
1221 .disable_hub_initiated_lpm
= 1,
1224 module_usb_driver(btusb_driver
);
1226 module_param(ignore_dga
, bool, 0644);
1227 MODULE_PARM_DESC(ignore_dga
, "Ignore devices with id 08fd:0001");
1229 module_param(ignore_csr
, bool, 0644);
1230 MODULE_PARM_DESC(ignore_csr
, "Ignore devices with id 0a12:0001");
1232 module_param(ignore_sniffer
, bool, 0644);
1233 MODULE_PARM_DESC(ignore_sniffer
, "Ignore devices with id 0a12:0002");
1235 module_param(disable_scofix
, bool, 0644);
1236 MODULE_PARM_DESC(disable_scofix
, "Disable fixup of wrong SCO buffer size");
1238 module_param(force_scofix
, bool, 0644);
1239 MODULE_PARM_DESC(force_scofix
, "Force fixup of wrong SCO buffers size");
1241 module_param(reset
, bool, 0644);
1242 MODULE_PARM_DESC(reset
, "Send HCI reset command on initialization");
1244 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1245 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION
);
1246 MODULE_VERSION(VERSION
);
1247 MODULE_LICENSE("GPL");