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
},
128 /* Atheros AR9285 Malbec with sflash firmware */
129 { USB_DEVICE(0x03f0, 0x311d), .driver_info
= BTUSB_IGNORE
},
131 /* Atheros 3012 with sflash firmware */
132 { USB_DEVICE(0x0cf3, 0x3004), .driver_info
= BTUSB_ATH3012
},
133 { USB_DEVICE(0x0cf3, 0x311d), .driver_info
= BTUSB_ATH3012
},
134 { USB_DEVICE(0x13d3, 0x3375), .driver_info
= BTUSB_ATH3012
},
135 { USB_DEVICE(0x04ca, 0x3005), .driver_info
= BTUSB_ATH3012
},
136 { USB_DEVICE(0x13d3, 0x3362), .driver_info
= BTUSB_ATH3012
},
137 { USB_DEVICE(0x0cf3, 0xe004), .driver_info
= BTUSB_ATH3012
},
138 { USB_DEVICE(0x0930, 0x0219), .driver_info
= BTUSB_ATH3012
},
139 { USB_DEVICE(0x0489, 0xe057), .driver_info
= BTUSB_ATH3012
},
141 /* Atheros AR5BBU12 with sflash firmware */
142 { USB_DEVICE(0x0489, 0xe02c), .driver_info
= BTUSB_IGNORE
},
144 /* Atheros AR5BBU12 with sflash firmware */
145 { USB_DEVICE(0x0489, 0xe03c), .driver_info
= BTUSB_ATH3012
},
146 { USB_DEVICE(0x0489, 0xe036), .driver_info
= BTUSB_ATH3012
},
148 /* Broadcom BCM2035 */
149 { USB_DEVICE(0x0a5c, 0x2035), .driver_info
= BTUSB_WRONG_SCO_MTU
},
150 { USB_DEVICE(0x0a5c, 0x200a), .driver_info
= BTUSB_WRONG_SCO_MTU
},
151 { USB_DEVICE(0x0a5c, 0x2009), .driver_info
= BTUSB_BCM92035
},
153 /* Broadcom BCM2045 */
154 { USB_DEVICE(0x0a5c, 0x2039), .driver_info
= BTUSB_WRONG_SCO_MTU
},
155 { USB_DEVICE(0x0a5c, 0x2101), .driver_info
= BTUSB_WRONG_SCO_MTU
},
157 /* IBM/Lenovo ThinkPad with Broadcom chip */
158 { USB_DEVICE(0x0a5c, 0x201e), .driver_info
= BTUSB_WRONG_SCO_MTU
},
159 { USB_DEVICE(0x0a5c, 0x2110), .driver_info
= BTUSB_WRONG_SCO_MTU
},
161 /* HP laptop with Broadcom chip */
162 { USB_DEVICE(0x03f0, 0x171d), .driver_info
= BTUSB_WRONG_SCO_MTU
},
164 /* Dell laptop with Broadcom chip */
165 { USB_DEVICE(0x413c, 0x8126), .driver_info
= BTUSB_WRONG_SCO_MTU
},
167 /* Dell Wireless 370 and 410 devices */
168 { USB_DEVICE(0x413c, 0x8152), .driver_info
= BTUSB_WRONG_SCO_MTU
},
169 { USB_DEVICE(0x413c, 0x8156), .driver_info
= BTUSB_WRONG_SCO_MTU
},
171 /* Belkin F8T012 and F8T013 devices */
172 { USB_DEVICE(0x050d, 0x0012), .driver_info
= BTUSB_WRONG_SCO_MTU
},
173 { USB_DEVICE(0x050d, 0x0013), .driver_info
= BTUSB_WRONG_SCO_MTU
},
175 /* Asus WL-BTD202 device */
176 { USB_DEVICE(0x0b05, 0x1715), .driver_info
= BTUSB_WRONG_SCO_MTU
},
178 /* Kensington Bluetooth USB adapter */
179 { USB_DEVICE(0x047d, 0x105e), .driver_info
= BTUSB_WRONG_SCO_MTU
},
181 /* RTX Telecom based adapters with buggy SCO support */
182 { USB_DEVICE(0x0400, 0x0807), .driver_info
= BTUSB_BROKEN_ISOC
},
183 { USB_DEVICE(0x0400, 0x080a), .driver_info
= BTUSB_BROKEN_ISOC
},
185 /* CONWISE Technology based adapters with buggy SCO support */
186 { USB_DEVICE(0x0e5e, 0x6622), .driver_info
= BTUSB_BROKEN_ISOC
},
188 /* Digianswer devices */
189 { USB_DEVICE(0x08fd, 0x0001), .driver_info
= BTUSB_DIGIANSWER
},
190 { USB_DEVICE(0x08fd, 0x0002), .driver_info
= BTUSB_IGNORE
},
192 /* CSR BlueCore Bluetooth Sniffer */
193 { USB_DEVICE(0x0a12, 0x0002), .driver_info
= BTUSB_SNIFFER
},
195 /* Frontline ComProbe Bluetooth Sniffer */
196 { USB_DEVICE(0x16d3, 0x0002), .driver_info
= BTUSB_SNIFFER
},
198 { } /* Terminating entry */
201 #define BTUSB_MAX_ISOC_FRAMES 10
203 #define BTUSB_INTR_RUNNING 0
204 #define BTUSB_BULK_RUNNING 1
205 #define BTUSB_ISOC_RUNNING 2
206 #define BTUSB_SUSPENDING 3
207 #define BTUSB_DID_ISO_RESUME 4
210 struct hci_dev
*hdev
;
211 struct usb_device
*udev
;
212 struct usb_interface
*intf
;
213 struct usb_interface
*isoc
;
219 struct work_struct work
;
220 struct work_struct waker
;
222 struct usb_anchor tx_anchor
;
223 struct usb_anchor intr_anchor
;
224 struct usb_anchor bulk_anchor
;
225 struct usb_anchor isoc_anchor
;
226 struct usb_anchor deferred
;
230 struct usb_endpoint_descriptor
*intr_ep
;
231 struct usb_endpoint_descriptor
*bulk_tx_ep
;
232 struct usb_endpoint_descriptor
*bulk_rx_ep
;
233 struct usb_endpoint_descriptor
*isoc_tx_ep
;
234 struct usb_endpoint_descriptor
*isoc_rx_ep
;
238 unsigned int sco_num
;
243 static int inc_tx(struct btusb_data
*data
)
248 spin_lock_irqsave(&data
->txlock
, flags
);
249 rv
= test_bit(BTUSB_SUSPENDING
, &data
->flags
);
251 data
->tx_in_flight
++;
252 spin_unlock_irqrestore(&data
->txlock
, flags
);
257 static void btusb_intr_complete(struct urb
*urb
)
259 struct hci_dev
*hdev
= urb
->context
;
260 struct btusb_data
*data
= hci_get_drvdata(hdev
);
263 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
264 urb
, urb
->status
, urb
->actual_length
);
266 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
269 if (urb
->status
== 0) {
270 hdev
->stat
.byte_rx
+= urb
->actual_length
;
272 if (hci_recv_fragment(hdev
, HCI_EVENT_PKT
,
273 urb
->transfer_buffer
,
274 urb
->actual_length
) < 0) {
275 BT_ERR("%s corrupted event packet", hdev
->name
);
280 if (!test_bit(BTUSB_INTR_RUNNING
, &data
->flags
))
283 usb_mark_last_busy(data
->udev
);
284 usb_anchor_urb(urb
, &data
->intr_anchor
);
286 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
288 /* -EPERM: urb is being killed;
289 * -ENODEV: device got disconnected */
290 if (err
!= -EPERM
&& err
!= -ENODEV
)
291 BT_ERR("%s urb %p failed to resubmit (%d)",
292 hdev
->name
, urb
, -err
);
293 usb_unanchor_urb(urb
);
297 static int btusb_submit_intr_urb(struct hci_dev
*hdev
, gfp_t mem_flags
)
299 struct btusb_data
*data
= hci_get_drvdata(hdev
);
305 BT_DBG("%s", hdev
->name
);
310 urb
= usb_alloc_urb(0, mem_flags
);
314 size
= le16_to_cpu(data
->intr_ep
->wMaxPacketSize
);
316 buf
= kmalloc(size
, mem_flags
);
322 pipe
= usb_rcvintpipe(data
->udev
, data
->intr_ep
->bEndpointAddress
);
324 usb_fill_int_urb(urb
, data
->udev
, pipe
, buf
, size
,
325 btusb_intr_complete
, hdev
,
326 data
->intr_ep
->bInterval
);
328 urb
->transfer_flags
|= URB_FREE_BUFFER
;
330 usb_anchor_urb(urb
, &data
->intr_anchor
);
332 err
= usb_submit_urb(urb
, mem_flags
);
334 if (err
!= -EPERM
&& err
!= -ENODEV
)
335 BT_ERR("%s urb %p submission failed (%d)",
336 hdev
->name
, urb
, -err
);
337 usb_unanchor_urb(urb
);
345 static void btusb_bulk_complete(struct urb
*urb
)
347 struct hci_dev
*hdev
= urb
->context
;
348 struct btusb_data
*data
= hci_get_drvdata(hdev
);
351 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
352 urb
, urb
->status
, urb
->actual_length
);
354 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
357 if (urb
->status
== 0) {
358 hdev
->stat
.byte_rx
+= urb
->actual_length
;
360 if (hci_recv_fragment(hdev
, HCI_ACLDATA_PKT
,
361 urb
->transfer_buffer
,
362 urb
->actual_length
) < 0) {
363 BT_ERR("%s corrupted ACL packet", hdev
->name
);
368 if (!test_bit(BTUSB_BULK_RUNNING
, &data
->flags
))
371 usb_anchor_urb(urb
, &data
->bulk_anchor
);
372 usb_mark_last_busy(data
->udev
);
374 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
376 /* -EPERM: urb is being killed;
377 * -ENODEV: device got disconnected */
378 if (err
!= -EPERM
&& err
!= -ENODEV
)
379 BT_ERR("%s urb %p failed to resubmit (%d)",
380 hdev
->name
, urb
, -err
);
381 usb_unanchor_urb(urb
);
385 static int btusb_submit_bulk_urb(struct hci_dev
*hdev
, gfp_t mem_flags
)
387 struct btusb_data
*data
= hci_get_drvdata(hdev
);
391 int err
, size
= HCI_MAX_FRAME_SIZE
;
393 BT_DBG("%s", hdev
->name
);
395 if (!data
->bulk_rx_ep
)
398 urb
= usb_alloc_urb(0, mem_flags
);
402 buf
= kmalloc(size
, mem_flags
);
408 pipe
= usb_rcvbulkpipe(data
->udev
, data
->bulk_rx_ep
->bEndpointAddress
);
410 usb_fill_bulk_urb(urb
, data
->udev
, pipe
,
411 buf
, size
, btusb_bulk_complete
, hdev
);
413 urb
->transfer_flags
|= URB_FREE_BUFFER
;
415 usb_mark_last_busy(data
->udev
);
416 usb_anchor_urb(urb
, &data
->bulk_anchor
);
418 err
= usb_submit_urb(urb
, mem_flags
);
420 if (err
!= -EPERM
&& err
!= -ENODEV
)
421 BT_ERR("%s urb %p submission failed (%d)",
422 hdev
->name
, urb
, -err
);
423 usb_unanchor_urb(urb
);
431 static void btusb_isoc_complete(struct urb
*urb
)
433 struct hci_dev
*hdev
= urb
->context
;
434 struct btusb_data
*data
= hci_get_drvdata(hdev
);
437 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
438 urb
, urb
->status
, urb
->actual_length
);
440 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
443 if (urb
->status
== 0) {
444 for (i
= 0; i
< urb
->number_of_packets
; i
++) {
445 unsigned int offset
= urb
->iso_frame_desc
[i
].offset
;
446 unsigned int length
= urb
->iso_frame_desc
[i
].actual_length
;
448 if (urb
->iso_frame_desc
[i
].status
)
451 hdev
->stat
.byte_rx
+= length
;
453 if (hci_recv_fragment(hdev
, HCI_SCODATA_PKT
,
454 urb
->transfer_buffer
+ offset
,
456 BT_ERR("%s corrupted SCO packet", hdev
->name
);
462 if (!test_bit(BTUSB_ISOC_RUNNING
, &data
->flags
))
465 usb_anchor_urb(urb
, &data
->isoc_anchor
);
467 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
469 /* -EPERM: urb is being killed;
470 * -ENODEV: device got disconnected */
471 if (err
!= -EPERM
&& err
!= -ENODEV
)
472 BT_ERR("%s urb %p failed to resubmit (%d)",
473 hdev
->name
, urb
, -err
);
474 usb_unanchor_urb(urb
);
478 static inline void __fill_isoc_descriptor(struct urb
*urb
, int len
, int mtu
)
482 BT_DBG("len %d mtu %d", len
, mtu
);
484 for (i
= 0; i
< BTUSB_MAX_ISOC_FRAMES
&& len
>= mtu
;
485 i
++, offset
+= mtu
, len
-= mtu
) {
486 urb
->iso_frame_desc
[i
].offset
= offset
;
487 urb
->iso_frame_desc
[i
].length
= mtu
;
490 if (len
&& i
< BTUSB_MAX_ISOC_FRAMES
) {
491 urb
->iso_frame_desc
[i
].offset
= offset
;
492 urb
->iso_frame_desc
[i
].length
= len
;
496 urb
->number_of_packets
= i
;
499 static int btusb_submit_isoc_urb(struct hci_dev
*hdev
, gfp_t mem_flags
)
501 struct btusb_data
*data
= hci_get_drvdata(hdev
);
507 BT_DBG("%s", hdev
->name
);
509 if (!data
->isoc_rx_ep
)
512 urb
= usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES
, mem_flags
);
516 size
= le16_to_cpu(data
->isoc_rx_ep
->wMaxPacketSize
) *
517 BTUSB_MAX_ISOC_FRAMES
;
519 buf
= kmalloc(size
, mem_flags
);
525 pipe
= usb_rcvisocpipe(data
->udev
, data
->isoc_rx_ep
->bEndpointAddress
);
527 usb_fill_int_urb(urb
, data
->udev
, pipe
, buf
, size
, btusb_isoc_complete
,
528 hdev
, data
->isoc_rx_ep
->bInterval
);
530 urb
->transfer_flags
= URB_FREE_BUFFER
| URB_ISO_ASAP
;
532 __fill_isoc_descriptor(urb
, size
,
533 le16_to_cpu(data
->isoc_rx_ep
->wMaxPacketSize
));
535 usb_anchor_urb(urb
, &data
->isoc_anchor
);
537 err
= usb_submit_urb(urb
, mem_flags
);
539 if (err
!= -EPERM
&& err
!= -ENODEV
)
540 BT_ERR("%s urb %p submission failed (%d)",
541 hdev
->name
, urb
, -err
);
542 usb_unanchor_urb(urb
);
550 static void btusb_tx_complete(struct urb
*urb
)
552 struct sk_buff
*skb
= urb
->context
;
553 struct hci_dev
*hdev
= (struct hci_dev
*) skb
->dev
;
554 struct btusb_data
*data
= hci_get_drvdata(hdev
);
556 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
557 urb
, urb
->status
, urb
->actual_length
);
559 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
563 hdev
->stat
.byte_tx
+= urb
->transfer_buffer_length
;
568 spin_lock(&data
->txlock
);
569 data
->tx_in_flight
--;
570 spin_unlock(&data
->txlock
);
572 kfree(urb
->setup_packet
);
577 static void btusb_isoc_tx_complete(struct urb
*urb
)
579 struct sk_buff
*skb
= urb
->context
;
580 struct hci_dev
*hdev
= (struct hci_dev
*) skb
->dev
;
582 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
583 urb
, urb
->status
, urb
->actual_length
);
585 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
589 hdev
->stat
.byte_tx
+= urb
->transfer_buffer_length
;
594 kfree(urb
->setup_packet
);
599 static int btusb_open(struct hci_dev
*hdev
)
601 struct btusb_data
*data
= hci_get_drvdata(hdev
);
604 BT_DBG("%s", hdev
->name
);
606 err
= usb_autopm_get_interface(data
->intf
);
610 data
->intf
->needs_remote_wakeup
= 1;
612 if (test_and_set_bit(HCI_RUNNING
, &hdev
->flags
))
615 if (test_and_set_bit(BTUSB_INTR_RUNNING
, &data
->flags
))
618 err
= btusb_submit_intr_urb(hdev
, GFP_KERNEL
);
622 err
= btusb_submit_bulk_urb(hdev
, GFP_KERNEL
);
624 usb_kill_anchored_urbs(&data
->intr_anchor
);
628 set_bit(BTUSB_BULK_RUNNING
, &data
->flags
);
629 btusb_submit_bulk_urb(hdev
, GFP_KERNEL
);
632 usb_autopm_put_interface(data
->intf
);
636 clear_bit(BTUSB_INTR_RUNNING
, &data
->flags
);
637 clear_bit(HCI_RUNNING
, &hdev
->flags
);
638 usb_autopm_put_interface(data
->intf
);
642 static void btusb_stop_traffic(struct btusb_data
*data
)
644 usb_kill_anchored_urbs(&data
->intr_anchor
);
645 usb_kill_anchored_urbs(&data
->bulk_anchor
);
646 usb_kill_anchored_urbs(&data
->isoc_anchor
);
649 static int btusb_close(struct hci_dev
*hdev
)
651 struct btusb_data
*data
= hci_get_drvdata(hdev
);
654 BT_DBG("%s", hdev
->name
);
656 if (!test_and_clear_bit(HCI_RUNNING
, &hdev
->flags
))
659 cancel_work_sync(&data
->work
);
660 cancel_work_sync(&data
->waker
);
662 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
663 clear_bit(BTUSB_BULK_RUNNING
, &data
->flags
);
664 clear_bit(BTUSB_INTR_RUNNING
, &data
->flags
);
666 btusb_stop_traffic(data
);
667 err
= usb_autopm_get_interface(data
->intf
);
671 data
->intf
->needs_remote_wakeup
= 0;
672 usb_autopm_put_interface(data
->intf
);
675 usb_scuttle_anchored_urbs(&data
->deferred
);
679 static int btusb_flush(struct hci_dev
*hdev
)
681 struct btusb_data
*data
= hci_get_drvdata(hdev
);
683 BT_DBG("%s", hdev
->name
);
685 usb_kill_anchored_urbs(&data
->tx_anchor
);
690 static int btusb_send_frame(struct sk_buff
*skb
)
692 struct hci_dev
*hdev
= (struct hci_dev
*) skb
->dev
;
693 struct btusb_data
*data
= hci_get_drvdata(hdev
);
694 struct usb_ctrlrequest
*dr
;
699 BT_DBG("%s", hdev
->name
);
701 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
704 switch (bt_cb(skb
)->pkt_type
) {
705 case HCI_COMMAND_PKT
:
706 urb
= usb_alloc_urb(0, GFP_ATOMIC
);
710 dr
= kmalloc(sizeof(*dr
), GFP_ATOMIC
);
716 dr
->bRequestType
= data
->cmdreq_type
;
720 dr
->wLength
= __cpu_to_le16(skb
->len
);
722 pipe
= usb_sndctrlpipe(data
->udev
, 0x00);
724 usb_fill_control_urb(urb
, data
->udev
, pipe
, (void *) dr
,
725 skb
->data
, skb
->len
, btusb_tx_complete
, skb
);
730 case HCI_ACLDATA_PKT
:
731 if (!data
->bulk_tx_ep
)
734 urb
= usb_alloc_urb(0, GFP_ATOMIC
);
738 pipe
= usb_sndbulkpipe(data
->udev
,
739 data
->bulk_tx_ep
->bEndpointAddress
);
741 usb_fill_bulk_urb(urb
, data
->udev
, pipe
,
742 skb
->data
, skb
->len
, btusb_tx_complete
, skb
);
747 case HCI_SCODATA_PKT
:
748 if (!data
->isoc_tx_ep
|| hdev
->conn_hash
.sco_num
< 1)
751 urb
= usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES
, GFP_ATOMIC
);
755 pipe
= usb_sndisocpipe(data
->udev
,
756 data
->isoc_tx_ep
->bEndpointAddress
);
758 usb_fill_int_urb(urb
, data
->udev
, pipe
,
759 skb
->data
, skb
->len
, btusb_isoc_tx_complete
,
760 skb
, data
->isoc_tx_ep
->bInterval
);
762 urb
->transfer_flags
= URB_ISO_ASAP
;
764 __fill_isoc_descriptor(urb
, skb
->len
,
765 le16_to_cpu(data
->isoc_tx_ep
->wMaxPacketSize
));
776 usb_anchor_urb(urb
, &data
->deferred
);
777 schedule_work(&data
->waker
);
783 usb_anchor_urb(urb
, &data
->tx_anchor
);
785 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
787 if (err
!= -EPERM
&& err
!= -ENODEV
)
788 BT_ERR("%s urb %p submission failed (%d)",
789 hdev
->name
, urb
, -err
);
790 kfree(urb
->setup_packet
);
791 usb_unanchor_urb(urb
);
793 usb_mark_last_busy(data
->udev
);
801 static void btusb_notify(struct hci_dev
*hdev
, unsigned int evt
)
803 struct btusb_data
*data
= hci_get_drvdata(hdev
);
805 BT_DBG("%s evt %d", hdev
->name
, evt
);
807 if (hdev
->conn_hash
.sco_num
!= data
->sco_num
) {
808 data
->sco_num
= hdev
->conn_hash
.sco_num
;
809 schedule_work(&data
->work
);
813 static inline int __set_isoc_interface(struct hci_dev
*hdev
, int altsetting
)
815 struct btusb_data
*data
= hci_get_drvdata(hdev
);
816 struct usb_interface
*intf
= data
->isoc
;
817 struct usb_endpoint_descriptor
*ep_desc
;
823 err
= usb_set_interface(data
->udev
, 1, altsetting
);
825 BT_ERR("%s setting interface failed (%d)", hdev
->name
, -err
);
829 data
->isoc_altsetting
= altsetting
;
831 data
->isoc_tx_ep
= NULL
;
832 data
->isoc_rx_ep
= NULL
;
834 for (i
= 0; i
< intf
->cur_altsetting
->desc
.bNumEndpoints
; i
++) {
835 ep_desc
= &intf
->cur_altsetting
->endpoint
[i
].desc
;
837 if (!data
->isoc_tx_ep
&& usb_endpoint_is_isoc_out(ep_desc
)) {
838 data
->isoc_tx_ep
= ep_desc
;
842 if (!data
->isoc_rx_ep
&& usb_endpoint_is_isoc_in(ep_desc
)) {
843 data
->isoc_rx_ep
= ep_desc
;
848 if (!data
->isoc_tx_ep
|| !data
->isoc_rx_ep
) {
849 BT_ERR("%s invalid SCO descriptors", hdev
->name
);
856 static void btusb_work(struct work_struct
*work
)
858 struct btusb_data
*data
= container_of(work
, struct btusb_data
, work
);
859 struct hci_dev
*hdev
= data
->hdev
;
863 if (hdev
->conn_hash
.sco_num
> 0) {
864 if (!test_bit(BTUSB_DID_ISO_RESUME
, &data
->flags
)) {
865 err
= usb_autopm_get_interface(data
->isoc
? data
->isoc
: data
->intf
);
867 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
868 usb_kill_anchored_urbs(&data
->isoc_anchor
);
872 set_bit(BTUSB_DID_ISO_RESUME
, &data
->flags
);
875 if (hdev
->voice_setting
& 0x0020) {
876 static const int alts
[3] = { 2, 4, 5 };
877 new_alts
= alts
[hdev
->conn_hash
.sco_num
- 1];
879 new_alts
= hdev
->conn_hash
.sco_num
;
882 if (data
->isoc_altsetting
!= new_alts
) {
883 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
884 usb_kill_anchored_urbs(&data
->isoc_anchor
);
886 if (__set_isoc_interface(hdev
, new_alts
) < 0)
890 if (!test_and_set_bit(BTUSB_ISOC_RUNNING
, &data
->flags
)) {
891 if (btusb_submit_isoc_urb(hdev
, GFP_KERNEL
) < 0)
892 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
894 btusb_submit_isoc_urb(hdev
, GFP_KERNEL
);
897 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
898 usb_kill_anchored_urbs(&data
->isoc_anchor
);
900 __set_isoc_interface(hdev
, 0);
901 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME
, &data
->flags
))
902 usb_autopm_put_interface(data
->isoc
? data
->isoc
: data
->intf
);
906 static void btusb_waker(struct work_struct
*work
)
908 struct btusb_data
*data
= container_of(work
, struct btusb_data
, waker
);
911 err
= usb_autopm_get_interface(data
->intf
);
915 usb_autopm_put_interface(data
->intf
);
918 static int btusb_probe(struct usb_interface
*intf
,
919 const struct usb_device_id
*id
)
921 struct usb_endpoint_descriptor
*ep_desc
;
922 struct btusb_data
*data
;
923 struct hci_dev
*hdev
;
926 BT_DBG("intf %p id %p", intf
, id
);
928 /* interface numbers are hardcoded in the spec */
929 if (intf
->cur_altsetting
->desc
.bInterfaceNumber
!= 0)
932 if (!id
->driver_info
) {
933 const struct usb_device_id
*match
;
934 match
= usb_match_id(intf
, blacklist_table
);
939 if (id
->driver_info
== BTUSB_IGNORE
)
942 if (ignore_dga
&& id
->driver_info
& BTUSB_DIGIANSWER
)
945 if (ignore_csr
&& id
->driver_info
& BTUSB_CSR
)
948 if (ignore_sniffer
&& id
->driver_info
& BTUSB_SNIFFER
)
951 if (id
->driver_info
& BTUSB_ATH3012
) {
952 struct usb_device
*udev
= interface_to_usbdev(intf
);
954 /* Old firmware would otherwise let ath3k driver load
955 * patch and sysconfig files */
956 if (le16_to_cpu(udev
->descriptor
.bcdDevice
) <= 0x0001)
960 data
= devm_kzalloc(&intf
->dev
, sizeof(*data
), GFP_KERNEL
);
964 for (i
= 0; i
< intf
->cur_altsetting
->desc
.bNumEndpoints
; i
++) {
965 ep_desc
= &intf
->cur_altsetting
->endpoint
[i
].desc
;
967 if (!data
->intr_ep
&& usb_endpoint_is_int_in(ep_desc
)) {
968 data
->intr_ep
= ep_desc
;
972 if (!data
->bulk_tx_ep
&& usb_endpoint_is_bulk_out(ep_desc
)) {
973 data
->bulk_tx_ep
= ep_desc
;
977 if (!data
->bulk_rx_ep
&& usb_endpoint_is_bulk_in(ep_desc
)) {
978 data
->bulk_rx_ep
= ep_desc
;
983 if (!data
->intr_ep
|| !data
->bulk_tx_ep
|| !data
->bulk_rx_ep
)
986 data
->cmdreq_type
= USB_TYPE_CLASS
;
988 data
->udev
= interface_to_usbdev(intf
);
991 spin_lock_init(&data
->lock
);
993 INIT_WORK(&data
->work
, btusb_work
);
994 INIT_WORK(&data
->waker
, btusb_waker
);
995 spin_lock_init(&data
->txlock
);
997 init_usb_anchor(&data
->tx_anchor
);
998 init_usb_anchor(&data
->intr_anchor
);
999 init_usb_anchor(&data
->bulk_anchor
);
1000 init_usb_anchor(&data
->isoc_anchor
);
1001 init_usb_anchor(&data
->deferred
);
1003 hdev
= hci_alloc_dev();
1007 hdev
->bus
= HCI_USB
;
1008 hci_set_drvdata(hdev
, data
);
1012 SET_HCIDEV_DEV(hdev
, &intf
->dev
);
1014 hdev
->open
= btusb_open
;
1015 hdev
->close
= btusb_close
;
1016 hdev
->flush
= btusb_flush
;
1017 hdev
->send
= btusb_send_frame
;
1018 hdev
->notify
= btusb_notify
;
1020 /* Interface numbers are hardcoded in the specification */
1021 data
->isoc
= usb_ifnum_to_if(data
->udev
, 1);
1024 set_bit(HCI_QUIRK_RESET_ON_CLOSE
, &hdev
->quirks
);
1026 if (force_scofix
|| id
->driver_info
& BTUSB_WRONG_SCO_MTU
) {
1027 if (!disable_scofix
)
1028 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE
, &hdev
->quirks
);
1031 if (id
->driver_info
& BTUSB_BROKEN_ISOC
)
1034 if (id
->driver_info
& BTUSB_DIGIANSWER
) {
1035 data
->cmdreq_type
= USB_TYPE_VENDOR
;
1036 set_bit(HCI_QUIRK_RESET_ON_CLOSE
, &hdev
->quirks
);
1039 if (id
->driver_info
& BTUSB_CSR
) {
1040 struct usb_device
*udev
= data
->udev
;
1042 /* Old firmware would otherwise execute USB reset */
1043 if (le16_to_cpu(udev
->descriptor
.bcdDevice
) < 0x117)
1044 set_bit(HCI_QUIRK_RESET_ON_CLOSE
, &hdev
->quirks
);
1047 if (id
->driver_info
& BTUSB_SNIFFER
) {
1048 struct usb_device
*udev
= data
->udev
;
1050 /* New sniffer firmware has crippled HCI interface */
1051 if (le16_to_cpu(udev
->descriptor
.bcdDevice
) > 0x997)
1052 set_bit(HCI_QUIRK_RAW_DEVICE
, &hdev
->quirks
);
1057 if (id
->driver_info
& BTUSB_BCM92035
) {
1058 unsigned char cmd
[] = { 0x3b, 0xfc, 0x01, 0x00 };
1059 struct sk_buff
*skb
;
1061 skb
= bt_skb_alloc(sizeof(cmd
), GFP_KERNEL
);
1063 memcpy(skb_put(skb
, sizeof(cmd
)), cmd
, sizeof(cmd
));
1064 skb_queue_tail(&hdev
->driver_init
, skb
);
1069 err
= usb_driver_claim_interface(&btusb_driver
,
1077 err
= hci_register_dev(hdev
);
1083 usb_set_intfdata(intf
, data
);
1088 static void btusb_disconnect(struct usb_interface
*intf
)
1090 struct btusb_data
*data
= usb_get_intfdata(intf
);
1091 struct hci_dev
*hdev
;
1093 BT_DBG("intf %p", intf
);
1099 usb_set_intfdata(data
->intf
, NULL
);
1102 usb_set_intfdata(data
->isoc
, NULL
);
1104 hci_unregister_dev(hdev
);
1106 if (intf
== data
->isoc
)
1107 usb_driver_release_interface(&btusb_driver
, data
->intf
);
1108 else if (data
->isoc
)
1109 usb_driver_release_interface(&btusb_driver
, data
->isoc
);
1115 static int btusb_suspend(struct usb_interface
*intf
, pm_message_t message
)
1117 struct btusb_data
*data
= usb_get_intfdata(intf
);
1119 BT_DBG("intf %p", intf
);
1121 if (data
->suspend_count
++)
1124 spin_lock_irq(&data
->txlock
);
1125 if (!(PMSG_IS_AUTO(message
) && data
->tx_in_flight
)) {
1126 set_bit(BTUSB_SUSPENDING
, &data
->flags
);
1127 spin_unlock_irq(&data
->txlock
);
1129 spin_unlock_irq(&data
->txlock
);
1130 data
->suspend_count
--;
1134 cancel_work_sync(&data
->work
);
1136 btusb_stop_traffic(data
);
1137 usb_kill_anchored_urbs(&data
->tx_anchor
);
1142 static void play_deferred(struct btusb_data
*data
)
1147 while ((urb
= usb_get_from_anchor(&data
->deferred
))) {
1148 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
1152 data
->tx_in_flight
++;
1154 usb_scuttle_anchored_urbs(&data
->deferred
);
1157 static int btusb_resume(struct usb_interface
*intf
)
1159 struct btusb_data
*data
= usb_get_intfdata(intf
);
1160 struct hci_dev
*hdev
= data
->hdev
;
1163 BT_DBG("intf %p", intf
);
1165 if (--data
->suspend_count
)
1168 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
1171 if (test_bit(BTUSB_INTR_RUNNING
, &data
->flags
)) {
1172 err
= btusb_submit_intr_urb(hdev
, GFP_NOIO
);
1174 clear_bit(BTUSB_INTR_RUNNING
, &data
->flags
);
1179 if (test_bit(BTUSB_BULK_RUNNING
, &data
->flags
)) {
1180 err
= btusb_submit_bulk_urb(hdev
, GFP_NOIO
);
1182 clear_bit(BTUSB_BULK_RUNNING
, &data
->flags
);
1186 btusb_submit_bulk_urb(hdev
, GFP_NOIO
);
1189 if (test_bit(BTUSB_ISOC_RUNNING
, &data
->flags
)) {
1190 if (btusb_submit_isoc_urb(hdev
, GFP_NOIO
) < 0)
1191 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
1193 btusb_submit_isoc_urb(hdev
, GFP_NOIO
);
1196 spin_lock_irq(&data
->txlock
);
1197 play_deferred(data
);
1198 clear_bit(BTUSB_SUSPENDING
, &data
->flags
);
1199 spin_unlock_irq(&data
->txlock
);
1200 schedule_work(&data
->work
);
1205 usb_scuttle_anchored_urbs(&data
->deferred
);
1207 spin_lock_irq(&data
->txlock
);
1208 clear_bit(BTUSB_SUSPENDING
, &data
->flags
);
1209 spin_unlock_irq(&data
->txlock
);
1215 static struct usb_driver btusb_driver
= {
1217 .probe
= btusb_probe
,
1218 .disconnect
= btusb_disconnect
,
1220 .suspend
= btusb_suspend
,
1221 .resume
= btusb_resume
,
1223 .id_table
= btusb_table
,
1224 .supports_autosuspend
= 1,
1225 .disable_hub_initiated_lpm
= 1,
1228 module_usb_driver(btusb_driver
);
1230 module_param(ignore_dga
, bool, 0644);
1231 MODULE_PARM_DESC(ignore_dga
, "Ignore devices with id 08fd:0001");
1233 module_param(ignore_csr
, bool, 0644);
1234 MODULE_PARM_DESC(ignore_csr
, "Ignore devices with id 0a12:0001");
1236 module_param(ignore_sniffer
, bool, 0644);
1237 MODULE_PARM_DESC(ignore_sniffer
, "Ignore devices with id 0a12:0002");
1239 module_param(disable_scofix
, bool, 0644);
1240 MODULE_PARM_DESC(disable_scofix
, "Disable fixup of wrong SCO buffer size");
1242 module_param(force_scofix
, bool, 0644);
1243 MODULE_PARM_DESC(force_scofix
, "Force fixup of wrong SCO buffers size");
1245 module_param(reset
, bool, 0644);
1246 MODULE_PARM_DESC(reset
, "Send HCI reset command on initialization");
1248 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1249 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION
);
1250 MODULE_VERSION(VERSION
);
1251 MODULE_LICENSE("GPL");