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
},
143 /* Atheros AR5BBU12 with sflash firmware */
144 { USB_DEVICE(0x0489, 0xe02c), .driver_info
= BTUSB_IGNORE
},
146 /* Atheros AR5BBU12 with sflash firmware */
147 { USB_DEVICE(0x0489, 0xe03c), .driver_info
= BTUSB_ATH3012
},
148 { USB_DEVICE(0x0489, 0xe036), .driver_info
= BTUSB_ATH3012
},
150 /* Broadcom BCM2035 */
151 { USB_DEVICE(0x0a5c, 0x2035), .driver_info
= BTUSB_WRONG_SCO_MTU
},
152 { USB_DEVICE(0x0a5c, 0x200a), .driver_info
= BTUSB_WRONG_SCO_MTU
},
153 { USB_DEVICE(0x0a5c, 0x2009), .driver_info
= BTUSB_BCM92035
},
155 /* Broadcom BCM2045 */
156 { USB_DEVICE(0x0a5c, 0x2039), .driver_info
= BTUSB_WRONG_SCO_MTU
},
157 { USB_DEVICE(0x0a5c, 0x2101), .driver_info
= BTUSB_WRONG_SCO_MTU
},
159 /* IBM/Lenovo ThinkPad with Broadcom chip */
160 { USB_DEVICE(0x0a5c, 0x201e), .driver_info
= BTUSB_WRONG_SCO_MTU
},
161 { USB_DEVICE(0x0a5c, 0x2110), .driver_info
= BTUSB_WRONG_SCO_MTU
},
163 /* HP laptop with Broadcom chip */
164 { USB_DEVICE(0x03f0, 0x171d), .driver_info
= BTUSB_WRONG_SCO_MTU
},
166 /* Dell laptop with Broadcom chip */
167 { USB_DEVICE(0x413c, 0x8126), .driver_info
= BTUSB_WRONG_SCO_MTU
},
169 /* Dell Wireless 370 and 410 devices */
170 { USB_DEVICE(0x413c, 0x8152), .driver_info
= BTUSB_WRONG_SCO_MTU
},
171 { USB_DEVICE(0x413c, 0x8156), .driver_info
= BTUSB_WRONG_SCO_MTU
},
173 /* Belkin F8T012 and F8T013 devices */
174 { USB_DEVICE(0x050d, 0x0012), .driver_info
= BTUSB_WRONG_SCO_MTU
},
175 { USB_DEVICE(0x050d, 0x0013), .driver_info
= BTUSB_WRONG_SCO_MTU
},
177 /* Asus WL-BTD202 device */
178 { USB_DEVICE(0x0b05, 0x1715), .driver_info
= BTUSB_WRONG_SCO_MTU
},
180 /* Kensington Bluetooth USB adapter */
181 { USB_DEVICE(0x047d, 0x105e), .driver_info
= BTUSB_WRONG_SCO_MTU
},
183 /* RTX Telecom based adapters with buggy SCO support */
184 { USB_DEVICE(0x0400, 0x0807), .driver_info
= BTUSB_BROKEN_ISOC
},
185 { USB_DEVICE(0x0400, 0x080a), .driver_info
= BTUSB_BROKEN_ISOC
},
187 /* CONWISE Technology based adapters with buggy SCO support */
188 { USB_DEVICE(0x0e5e, 0x6622), .driver_info
= BTUSB_BROKEN_ISOC
},
190 /* Digianswer devices */
191 { USB_DEVICE(0x08fd, 0x0001), .driver_info
= BTUSB_DIGIANSWER
},
192 { USB_DEVICE(0x08fd, 0x0002), .driver_info
= BTUSB_IGNORE
},
194 /* CSR BlueCore Bluetooth Sniffer */
195 { USB_DEVICE(0x0a12, 0x0002), .driver_info
= BTUSB_SNIFFER
},
197 /* Frontline ComProbe Bluetooth Sniffer */
198 { USB_DEVICE(0x16d3, 0x0002), .driver_info
= BTUSB_SNIFFER
},
200 { } /* Terminating entry */
203 #define BTUSB_MAX_ISOC_FRAMES 10
205 #define BTUSB_INTR_RUNNING 0
206 #define BTUSB_BULK_RUNNING 1
207 #define BTUSB_ISOC_RUNNING 2
208 #define BTUSB_SUSPENDING 3
209 #define BTUSB_DID_ISO_RESUME 4
212 struct hci_dev
*hdev
;
213 struct usb_device
*udev
;
214 struct usb_interface
*intf
;
215 struct usb_interface
*isoc
;
221 struct work_struct work
;
222 struct work_struct waker
;
224 struct usb_anchor tx_anchor
;
225 struct usb_anchor intr_anchor
;
226 struct usb_anchor bulk_anchor
;
227 struct usb_anchor isoc_anchor
;
228 struct usb_anchor deferred
;
232 struct usb_endpoint_descriptor
*intr_ep
;
233 struct usb_endpoint_descriptor
*bulk_tx_ep
;
234 struct usb_endpoint_descriptor
*bulk_rx_ep
;
235 struct usb_endpoint_descriptor
*isoc_tx_ep
;
236 struct usb_endpoint_descriptor
*isoc_rx_ep
;
240 unsigned int sco_num
;
245 static int inc_tx(struct btusb_data
*data
)
250 spin_lock_irqsave(&data
->txlock
, flags
);
251 rv
= test_bit(BTUSB_SUSPENDING
, &data
->flags
);
253 data
->tx_in_flight
++;
254 spin_unlock_irqrestore(&data
->txlock
, flags
);
259 static void btusb_intr_complete(struct urb
*urb
)
261 struct hci_dev
*hdev
= urb
->context
;
262 struct btusb_data
*data
= hci_get_drvdata(hdev
);
265 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
266 urb
, urb
->status
, urb
->actual_length
);
268 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
271 if (urb
->status
== 0) {
272 hdev
->stat
.byte_rx
+= urb
->actual_length
;
274 if (hci_recv_fragment(hdev
, HCI_EVENT_PKT
,
275 urb
->transfer_buffer
,
276 urb
->actual_length
) < 0) {
277 BT_ERR("%s corrupted event packet", hdev
->name
);
282 if (!test_bit(BTUSB_INTR_RUNNING
, &data
->flags
))
285 usb_mark_last_busy(data
->udev
);
286 usb_anchor_urb(urb
, &data
->intr_anchor
);
288 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
290 /* -EPERM: urb is being killed;
291 * -ENODEV: device got disconnected */
292 if (err
!= -EPERM
&& err
!= -ENODEV
)
293 BT_ERR("%s urb %p failed to resubmit (%d)",
294 hdev
->name
, urb
, -err
);
295 usb_unanchor_urb(urb
);
299 static int btusb_submit_intr_urb(struct hci_dev
*hdev
, gfp_t mem_flags
)
301 struct btusb_data
*data
= hci_get_drvdata(hdev
);
307 BT_DBG("%s", hdev
->name
);
312 urb
= usb_alloc_urb(0, mem_flags
);
316 size
= le16_to_cpu(data
->intr_ep
->wMaxPacketSize
);
318 buf
= kmalloc(size
, mem_flags
);
324 pipe
= usb_rcvintpipe(data
->udev
, data
->intr_ep
->bEndpointAddress
);
326 usb_fill_int_urb(urb
, data
->udev
, pipe
, buf
, size
,
327 btusb_intr_complete
, hdev
,
328 data
->intr_ep
->bInterval
);
330 urb
->transfer_flags
|= URB_FREE_BUFFER
;
332 usb_anchor_urb(urb
, &data
->intr_anchor
);
334 err
= usb_submit_urb(urb
, mem_flags
);
336 if (err
!= -EPERM
&& err
!= -ENODEV
)
337 BT_ERR("%s urb %p submission failed (%d)",
338 hdev
->name
, urb
, -err
);
339 usb_unanchor_urb(urb
);
347 static void btusb_bulk_complete(struct urb
*urb
)
349 struct hci_dev
*hdev
= urb
->context
;
350 struct btusb_data
*data
= hci_get_drvdata(hdev
);
353 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
354 urb
, urb
->status
, urb
->actual_length
);
356 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
359 if (urb
->status
== 0) {
360 hdev
->stat
.byte_rx
+= urb
->actual_length
;
362 if (hci_recv_fragment(hdev
, HCI_ACLDATA_PKT
,
363 urb
->transfer_buffer
,
364 urb
->actual_length
) < 0) {
365 BT_ERR("%s corrupted ACL packet", hdev
->name
);
370 if (!test_bit(BTUSB_BULK_RUNNING
, &data
->flags
))
373 usb_anchor_urb(urb
, &data
->bulk_anchor
);
374 usb_mark_last_busy(data
->udev
);
376 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
378 /* -EPERM: urb is being killed;
379 * -ENODEV: device got disconnected */
380 if (err
!= -EPERM
&& err
!= -ENODEV
)
381 BT_ERR("%s urb %p failed to resubmit (%d)",
382 hdev
->name
, urb
, -err
);
383 usb_unanchor_urb(urb
);
387 static int btusb_submit_bulk_urb(struct hci_dev
*hdev
, gfp_t mem_flags
)
389 struct btusb_data
*data
= hci_get_drvdata(hdev
);
393 int err
, size
= HCI_MAX_FRAME_SIZE
;
395 BT_DBG("%s", hdev
->name
);
397 if (!data
->bulk_rx_ep
)
400 urb
= usb_alloc_urb(0, mem_flags
);
404 buf
= kmalloc(size
, mem_flags
);
410 pipe
= usb_rcvbulkpipe(data
->udev
, data
->bulk_rx_ep
->bEndpointAddress
);
412 usb_fill_bulk_urb(urb
, data
->udev
, pipe
,
413 buf
, size
, btusb_bulk_complete
, hdev
);
415 urb
->transfer_flags
|= URB_FREE_BUFFER
;
417 usb_mark_last_busy(data
->udev
);
418 usb_anchor_urb(urb
, &data
->bulk_anchor
);
420 err
= usb_submit_urb(urb
, mem_flags
);
422 if (err
!= -EPERM
&& err
!= -ENODEV
)
423 BT_ERR("%s urb %p submission failed (%d)",
424 hdev
->name
, urb
, -err
);
425 usb_unanchor_urb(urb
);
433 static void btusb_isoc_complete(struct urb
*urb
)
435 struct hci_dev
*hdev
= urb
->context
;
436 struct btusb_data
*data
= hci_get_drvdata(hdev
);
439 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
440 urb
, urb
->status
, urb
->actual_length
);
442 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
445 if (urb
->status
== 0) {
446 for (i
= 0; i
< urb
->number_of_packets
; i
++) {
447 unsigned int offset
= urb
->iso_frame_desc
[i
].offset
;
448 unsigned int length
= urb
->iso_frame_desc
[i
].actual_length
;
450 if (urb
->iso_frame_desc
[i
].status
)
453 hdev
->stat
.byte_rx
+= length
;
455 if (hci_recv_fragment(hdev
, HCI_SCODATA_PKT
,
456 urb
->transfer_buffer
+ offset
,
458 BT_ERR("%s corrupted SCO packet", hdev
->name
);
464 if (!test_bit(BTUSB_ISOC_RUNNING
, &data
->flags
))
467 usb_anchor_urb(urb
, &data
->isoc_anchor
);
469 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
471 /* -EPERM: urb is being killed;
472 * -ENODEV: device got disconnected */
473 if (err
!= -EPERM
&& err
!= -ENODEV
)
474 BT_ERR("%s urb %p failed to resubmit (%d)",
475 hdev
->name
, urb
, -err
);
476 usb_unanchor_urb(urb
);
480 static inline void __fill_isoc_descriptor(struct urb
*urb
, int len
, int mtu
)
484 BT_DBG("len %d mtu %d", len
, mtu
);
486 for (i
= 0; i
< BTUSB_MAX_ISOC_FRAMES
&& len
>= mtu
;
487 i
++, offset
+= mtu
, len
-= mtu
) {
488 urb
->iso_frame_desc
[i
].offset
= offset
;
489 urb
->iso_frame_desc
[i
].length
= mtu
;
492 if (len
&& i
< BTUSB_MAX_ISOC_FRAMES
) {
493 urb
->iso_frame_desc
[i
].offset
= offset
;
494 urb
->iso_frame_desc
[i
].length
= len
;
498 urb
->number_of_packets
= i
;
501 static int btusb_submit_isoc_urb(struct hci_dev
*hdev
, gfp_t mem_flags
)
503 struct btusb_data
*data
= hci_get_drvdata(hdev
);
509 BT_DBG("%s", hdev
->name
);
511 if (!data
->isoc_rx_ep
)
514 urb
= usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES
, mem_flags
);
518 size
= le16_to_cpu(data
->isoc_rx_ep
->wMaxPacketSize
) *
519 BTUSB_MAX_ISOC_FRAMES
;
521 buf
= kmalloc(size
, mem_flags
);
527 pipe
= usb_rcvisocpipe(data
->udev
, data
->isoc_rx_ep
->bEndpointAddress
);
529 usb_fill_int_urb(urb
, data
->udev
, pipe
, buf
, size
, btusb_isoc_complete
,
530 hdev
, data
->isoc_rx_ep
->bInterval
);
532 urb
->transfer_flags
= URB_FREE_BUFFER
| URB_ISO_ASAP
;
534 __fill_isoc_descriptor(urb
, size
,
535 le16_to_cpu(data
->isoc_rx_ep
->wMaxPacketSize
));
537 usb_anchor_urb(urb
, &data
->isoc_anchor
);
539 err
= usb_submit_urb(urb
, mem_flags
);
541 if (err
!= -EPERM
&& err
!= -ENODEV
)
542 BT_ERR("%s urb %p submission failed (%d)",
543 hdev
->name
, urb
, -err
);
544 usb_unanchor_urb(urb
);
552 static void btusb_tx_complete(struct urb
*urb
)
554 struct sk_buff
*skb
= urb
->context
;
555 struct hci_dev
*hdev
= (struct hci_dev
*) skb
->dev
;
556 struct btusb_data
*data
= hci_get_drvdata(hdev
);
558 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
559 urb
, urb
->status
, urb
->actual_length
);
561 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
565 hdev
->stat
.byte_tx
+= urb
->transfer_buffer_length
;
570 spin_lock(&data
->txlock
);
571 data
->tx_in_flight
--;
572 spin_unlock(&data
->txlock
);
574 kfree(urb
->setup_packet
);
579 static void btusb_isoc_tx_complete(struct urb
*urb
)
581 struct sk_buff
*skb
= urb
->context
;
582 struct hci_dev
*hdev
= (struct hci_dev
*) skb
->dev
;
584 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
585 urb
, urb
->status
, urb
->actual_length
);
587 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
591 hdev
->stat
.byte_tx
+= urb
->transfer_buffer_length
;
596 kfree(urb
->setup_packet
);
601 static int btusb_open(struct hci_dev
*hdev
)
603 struct btusb_data
*data
= hci_get_drvdata(hdev
);
606 BT_DBG("%s", hdev
->name
);
608 err
= usb_autopm_get_interface(data
->intf
);
612 data
->intf
->needs_remote_wakeup
= 1;
614 if (test_and_set_bit(HCI_RUNNING
, &hdev
->flags
))
617 if (test_and_set_bit(BTUSB_INTR_RUNNING
, &data
->flags
))
620 err
= btusb_submit_intr_urb(hdev
, GFP_KERNEL
);
624 err
= btusb_submit_bulk_urb(hdev
, GFP_KERNEL
);
626 usb_kill_anchored_urbs(&data
->intr_anchor
);
630 set_bit(BTUSB_BULK_RUNNING
, &data
->flags
);
631 btusb_submit_bulk_urb(hdev
, GFP_KERNEL
);
634 usb_autopm_put_interface(data
->intf
);
638 clear_bit(BTUSB_INTR_RUNNING
, &data
->flags
);
639 clear_bit(HCI_RUNNING
, &hdev
->flags
);
640 usb_autopm_put_interface(data
->intf
);
644 static void btusb_stop_traffic(struct btusb_data
*data
)
646 usb_kill_anchored_urbs(&data
->intr_anchor
);
647 usb_kill_anchored_urbs(&data
->bulk_anchor
);
648 usb_kill_anchored_urbs(&data
->isoc_anchor
);
651 static int btusb_close(struct hci_dev
*hdev
)
653 struct btusb_data
*data
= hci_get_drvdata(hdev
);
656 BT_DBG("%s", hdev
->name
);
658 if (!test_and_clear_bit(HCI_RUNNING
, &hdev
->flags
))
661 cancel_work_sync(&data
->work
);
662 cancel_work_sync(&data
->waker
);
664 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
665 clear_bit(BTUSB_BULK_RUNNING
, &data
->flags
);
666 clear_bit(BTUSB_INTR_RUNNING
, &data
->flags
);
668 btusb_stop_traffic(data
);
669 err
= usb_autopm_get_interface(data
->intf
);
673 data
->intf
->needs_remote_wakeup
= 0;
674 usb_autopm_put_interface(data
->intf
);
677 usb_scuttle_anchored_urbs(&data
->deferred
);
681 static int btusb_flush(struct hci_dev
*hdev
)
683 struct btusb_data
*data
= hci_get_drvdata(hdev
);
685 BT_DBG("%s", hdev
->name
);
687 usb_kill_anchored_urbs(&data
->tx_anchor
);
692 static int btusb_send_frame(struct sk_buff
*skb
)
694 struct hci_dev
*hdev
= (struct hci_dev
*) skb
->dev
;
695 struct btusb_data
*data
= hci_get_drvdata(hdev
);
696 struct usb_ctrlrequest
*dr
;
701 BT_DBG("%s", hdev
->name
);
703 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
706 switch (bt_cb(skb
)->pkt_type
) {
707 case HCI_COMMAND_PKT
:
708 urb
= usb_alloc_urb(0, GFP_ATOMIC
);
712 dr
= kmalloc(sizeof(*dr
), GFP_ATOMIC
);
718 dr
->bRequestType
= data
->cmdreq_type
;
722 dr
->wLength
= __cpu_to_le16(skb
->len
);
724 pipe
= usb_sndctrlpipe(data
->udev
, 0x00);
726 usb_fill_control_urb(urb
, data
->udev
, pipe
, (void *) dr
,
727 skb
->data
, skb
->len
, btusb_tx_complete
, skb
);
732 case HCI_ACLDATA_PKT
:
733 if (!data
->bulk_tx_ep
)
736 urb
= usb_alloc_urb(0, GFP_ATOMIC
);
740 pipe
= usb_sndbulkpipe(data
->udev
,
741 data
->bulk_tx_ep
->bEndpointAddress
);
743 usb_fill_bulk_urb(urb
, data
->udev
, pipe
,
744 skb
->data
, skb
->len
, btusb_tx_complete
, skb
);
749 case HCI_SCODATA_PKT
:
750 if (!data
->isoc_tx_ep
|| hdev
->conn_hash
.sco_num
< 1)
753 urb
= usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES
, GFP_ATOMIC
);
757 pipe
= usb_sndisocpipe(data
->udev
,
758 data
->isoc_tx_ep
->bEndpointAddress
);
760 usb_fill_int_urb(urb
, data
->udev
, pipe
,
761 skb
->data
, skb
->len
, btusb_isoc_tx_complete
,
762 skb
, data
->isoc_tx_ep
->bInterval
);
764 urb
->transfer_flags
= URB_ISO_ASAP
;
766 __fill_isoc_descriptor(urb
, skb
->len
,
767 le16_to_cpu(data
->isoc_tx_ep
->wMaxPacketSize
));
778 usb_anchor_urb(urb
, &data
->deferred
);
779 schedule_work(&data
->waker
);
785 usb_anchor_urb(urb
, &data
->tx_anchor
);
787 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
789 if (err
!= -EPERM
&& err
!= -ENODEV
)
790 BT_ERR("%s urb %p submission failed (%d)",
791 hdev
->name
, urb
, -err
);
792 kfree(urb
->setup_packet
);
793 usb_unanchor_urb(urb
);
795 usb_mark_last_busy(data
->udev
);
803 static void btusb_notify(struct hci_dev
*hdev
, unsigned int evt
)
805 struct btusb_data
*data
= hci_get_drvdata(hdev
);
807 BT_DBG("%s evt %d", hdev
->name
, evt
);
809 if (hdev
->conn_hash
.sco_num
!= data
->sco_num
) {
810 data
->sco_num
= hdev
->conn_hash
.sco_num
;
811 schedule_work(&data
->work
);
815 static inline int __set_isoc_interface(struct hci_dev
*hdev
, int altsetting
)
817 struct btusb_data
*data
= hci_get_drvdata(hdev
);
818 struct usb_interface
*intf
= data
->isoc
;
819 struct usb_endpoint_descriptor
*ep_desc
;
825 err
= usb_set_interface(data
->udev
, 1, altsetting
);
827 BT_ERR("%s setting interface failed (%d)", hdev
->name
, -err
);
831 data
->isoc_altsetting
= altsetting
;
833 data
->isoc_tx_ep
= NULL
;
834 data
->isoc_rx_ep
= NULL
;
836 for (i
= 0; i
< intf
->cur_altsetting
->desc
.bNumEndpoints
; i
++) {
837 ep_desc
= &intf
->cur_altsetting
->endpoint
[i
].desc
;
839 if (!data
->isoc_tx_ep
&& usb_endpoint_is_isoc_out(ep_desc
)) {
840 data
->isoc_tx_ep
= ep_desc
;
844 if (!data
->isoc_rx_ep
&& usb_endpoint_is_isoc_in(ep_desc
)) {
845 data
->isoc_rx_ep
= ep_desc
;
850 if (!data
->isoc_tx_ep
|| !data
->isoc_rx_ep
) {
851 BT_ERR("%s invalid SCO descriptors", hdev
->name
);
858 static void btusb_work(struct work_struct
*work
)
860 struct btusb_data
*data
= container_of(work
, struct btusb_data
, work
);
861 struct hci_dev
*hdev
= data
->hdev
;
865 if (hdev
->conn_hash
.sco_num
> 0) {
866 if (!test_bit(BTUSB_DID_ISO_RESUME
, &data
->flags
)) {
867 err
= usb_autopm_get_interface(data
->isoc
? data
->isoc
: data
->intf
);
869 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
870 usb_kill_anchored_urbs(&data
->isoc_anchor
);
874 set_bit(BTUSB_DID_ISO_RESUME
, &data
->flags
);
877 if (hdev
->voice_setting
& 0x0020) {
878 static const int alts
[3] = { 2, 4, 5 };
879 new_alts
= alts
[hdev
->conn_hash
.sco_num
- 1];
881 new_alts
= hdev
->conn_hash
.sco_num
;
884 if (data
->isoc_altsetting
!= new_alts
) {
885 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
886 usb_kill_anchored_urbs(&data
->isoc_anchor
);
888 if (__set_isoc_interface(hdev
, new_alts
) < 0)
892 if (!test_and_set_bit(BTUSB_ISOC_RUNNING
, &data
->flags
)) {
893 if (btusb_submit_isoc_urb(hdev
, GFP_KERNEL
) < 0)
894 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
896 btusb_submit_isoc_urb(hdev
, GFP_KERNEL
);
899 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
900 usb_kill_anchored_urbs(&data
->isoc_anchor
);
902 __set_isoc_interface(hdev
, 0);
903 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME
, &data
->flags
))
904 usb_autopm_put_interface(data
->isoc
? data
->isoc
: data
->intf
);
908 static void btusb_waker(struct work_struct
*work
)
910 struct btusb_data
*data
= container_of(work
, struct btusb_data
, waker
);
913 err
= usb_autopm_get_interface(data
->intf
);
917 usb_autopm_put_interface(data
->intf
);
920 static int btusb_probe(struct usb_interface
*intf
,
921 const struct usb_device_id
*id
)
923 struct usb_endpoint_descriptor
*ep_desc
;
924 struct btusb_data
*data
;
925 struct hci_dev
*hdev
;
928 BT_DBG("intf %p id %p", intf
, id
);
930 /* interface numbers are hardcoded in the spec */
931 if (intf
->cur_altsetting
->desc
.bInterfaceNumber
!= 0)
934 if (!id
->driver_info
) {
935 const struct usb_device_id
*match
;
936 match
= usb_match_id(intf
, blacklist_table
);
941 if (id
->driver_info
== BTUSB_IGNORE
)
944 if (ignore_dga
&& id
->driver_info
& BTUSB_DIGIANSWER
)
947 if (ignore_csr
&& id
->driver_info
& BTUSB_CSR
)
950 if (ignore_sniffer
&& id
->driver_info
& BTUSB_SNIFFER
)
953 if (id
->driver_info
& BTUSB_ATH3012
) {
954 struct usb_device
*udev
= interface_to_usbdev(intf
);
956 /* Old firmware would otherwise let ath3k driver load
957 * patch and sysconfig files */
958 if (le16_to_cpu(udev
->descriptor
.bcdDevice
) <= 0x0001)
962 data
= devm_kzalloc(&intf
->dev
, sizeof(*data
), GFP_KERNEL
);
966 for (i
= 0; i
< intf
->cur_altsetting
->desc
.bNumEndpoints
; i
++) {
967 ep_desc
= &intf
->cur_altsetting
->endpoint
[i
].desc
;
969 if (!data
->intr_ep
&& usb_endpoint_is_int_in(ep_desc
)) {
970 data
->intr_ep
= ep_desc
;
974 if (!data
->bulk_tx_ep
&& usb_endpoint_is_bulk_out(ep_desc
)) {
975 data
->bulk_tx_ep
= ep_desc
;
979 if (!data
->bulk_rx_ep
&& usb_endpoint_is_bulk_in(ep_desc
)) {
980 data
->bulk_rx_ep
= ep_desc
;
985 if (!data
->intr_ep
|| !data
->bulk_tx_ep
|| !data
->bulk_rx_ep
)
988 data
->cmdreq_type
= USB_TYPE_CLASS
;
990 data
->udev
= interface_to_usbdev(intf
);
993 spin_lock_init(&data
->lock
);
995 INIT_WORK(&data
->work
, btusb_work
);
996 INIT_WORK(&data
->waker
, btusb_waker
);
997 spin_lock_init(&data
->txlock
);
999 init_usb_anchor(&data
->tx_anchor
);
1000 init_usb_anchor(&data
->intr_anchor
);
1001 init_usb_anchor(&data
->bulk_anchor
);
1002 init_usb_anchor(&data
->isoc_anchor
);
1003 init_usb_anchor(&data
->deferred
);
1005 hdev
= hci_alloc_dev();
1009 hdev
->bus
= HCI_USB
;
1010 hci_set_drvdata(hdev
, data
);
1014 SET_HCIDEV_DEV(hdev
, &intf
->dev
);
1016 hdev
->open
= btusb_open
;
1017 hdev
->close
= btusb_close
;
1018 hdev
->flush
= btusb_flush
;
1019 hdev
->send
= btusb_send_frame
;
1020 hdev
->notify
= btusb_notify
;
1022 /* Interface numbers are hardcoded in the specification */
1023 data
->isoc
= usb_ifnum_to_if(data
->udev
, 1);
1026 set_bit(HCI_QUIRK_RESET_ON_CLOSE
, &hdev
->quirks
);
1028 if (force_scofix
|| id
->driver_info
& BTUSB_WRONG_SCO_MTU
) {
1029 if (!disable_scofix
)
1030 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE
, &hdev
->quirks
);
1033 if (id
->driver_info
& BTUSB_BROKEN_ISOC
)
1036 if (id
->driver_info
& BTUSB_DIGIANSWER
) {
1037 data
->cmdreq_type
= USB_TYPE_VENDOR
;
1038 set_bit(HCI_QUIRK_RESET_ON_CLOSE
, &hdev
->quirks
);
1041 if (id
->driver_info
& BTUSB_CSR
) {
1042 struct usb_device
*udev
= data
->udev
;
1044 /* Old firmware would otherwise execute USB reset */
1045 if (le16_to_cpu(udev
->descriptor
.bcdDevice
) < 0x117)
1046 set_bit(HCI_QUIRK_RESET_ON_CLOSE
, &hdev
->quirks
);
1049 if (id
->driver_info
& BTUSB_SNIFFER
) {
1050 struct usb_device
*udev
= data
->udev
;
1052 /* New sniffer firmware has crippled HCI interface */
1053 if (le16_to_cpu(udev
->descriptor
.bcdDevice
) > 0x997)
1054 set_bit(HCI_QUIRK_RAW_DEVICE
, &hdev
->quirks
);
1059 if (id
->driver_info
& BTUSB_BCM92035
) {
1060 unsigned char cmd
[] = { 0x3b, 0xfc, 0x01, 0x00 };
1061 struct sk_buff
*skb
;
1063 skb
= bt_skb_alloc(sizeof(cmd
), GFP_KERNEL
);
1065 memcpy(skb_put(skb
, sizeof(cmd
)), cmd
, sizeof(cmd
));
1066 skb_queue_tail(&hdev
->driver_init
, skb
);
1071 err
= usb_driver_claim_interface(&btusb_driver
,
1079 err
= hci_register_dev(hdev
);
1085 usb_set_intfdata(intf
, data
);
1090 static void btusb_disconnect(struct usb_interface
*intf
)
1092 struct btusb_data
*data
= usb_get_intfdata(intf
);
1093 struct hci_dev
*hdev
;
1095 BT_DBG("intf %p", intf
);
1101 usb_set_intfdata(data
->intf
, NULL
);
1104 usb_set_intfdata(data
->isoc
, NULL
);
1106 hci_unregister_dev(hdev
);
1108 if (intf
== data
->isoc
)
1109 usb_driver_release_interface(&btusb_driver
, data
->intf
);
1110 else if (data
->isoc
)
1111 usb_driver_release_interface(&btusb_driver
, data
->isoc
);
1117 static int btusb_suspend(struct usb_interface
*intf
, pm_message_t message
)
1119 struct btusb_data
*data
= usb_get_intfdata(intf
);
1121 BT_DBG("intf %p", intf
);
1123 if (data
->suspend_count
++)
1126 spin_lock_irq(&data
->txlock
);
1127 if (!(PMSG_IS_AUTO(message
) && data
->tx_in_flight
)) {
1128 set_bit(BTUSB_SUSPENDING
, &data
->flags
);
1129 spin_unlock_irq(&data
->txlock
);
1131 spin_unlock_irq(&data
->txlock
);
1132 data
->suspend_count
--;
1136 cancel_work_sync(&data
->work
);
1138 btusb_stop_traffic(data
);
1139 usb_kill_anchored_urbs(&data
->tx_anchor
);
1144 static void play_deferred(struct btusb_data
*data
)
1149 while ((urb
= usb_get_from_anchor(&data
->deferred
))) {
1150 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
1154 data
->tx_in_flight
++;
1156 usb_scuttle_anchored_urbs(&data
->deferred
);
1159 static int btusb_resume(struct usb_interface
*intf
)
1161 struct btusb_data
*data
= usb_get_intfdata(intf
);
1162 struct hci_dev
*hdev
= data
->hdev
;
1165 BT_DBG("intf %p", intf
);
1167 if (--data
->suspend_count
)
1170 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
1173 if (test_bit(BTUSB_INTR_RUNNING
, &data
->flags
)) {
1174 err
= btusb_submit_intr_urb(hdev
, GFP_NOIO
);
1176 clear_bit(BTUSB_INTR_RUNNING
, &data
->flags
);
1181 if (test_bit(BTUSB_BULK_RUNNING
, &data
->flags
)) {
1182 err
= btusb_submit_bulk_urb(hdev
, GFP_NOIO
);
1184 clear_bit(BTUSB_BULK_RUNNING
, &data
->flags
);
1188 btusb_submit_bulk_urb(hdev
, GFP_NOIO
);
1191 if (test_bit(BTUSB_ISOC_RUNNING
, &data
->flags
)) {
1192 if (btusb_submit_isoc_urb(hdev
, GFP_NOIO
) < 0)
1193 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
1195 btusb_submit_isoc_urb(hdev
, GFP_NOIO
);
1198 spin_lock_irq(&data
->txlock
);
1199 play_deferred(data
);
1200 clear_bit(BTUSB_SUSPENDING
, &data
->flags
);
1201 spin_unlock_irq(&data
->txlock
);
1202 schedule_work(&data
->work
);
1207 usb_scuttle_anchored_urbs(&data
->deferred
);
1209 spin_lock_irq(&data
->txlock
);
1210 clear_bit(BTUSB_SUSPENDING
, &data
->flags
);
1211 spin_unlock_irq(&data
->txlock
);
1217 static struct usb_driver btusb_driver
= {
1219 .probe
= btusb_probe
,
1220 .disconnect
= btusb_disconnect
,
1222 .suspend
= btusb_suspend
,
1223 .resume
= btusb_resume
,
1225 .id_table
= btusb_table
,
1226 .supports_autosuspend
= 1,
1227 .disable_hub_initiated_lpm
= 1,
1230 module_usb_driver(btusb_driver
);
1232 module_param(ignore_dga
, bool, 0644);
1233 MODULE_PARM_DESC(ignore_dga
, "Ignore devices with id 08fd:0001");
1235 module_param(ignore_csr
, bool, 0644);
1236 MODULE_PARM_DESC(ignore_csr
, "Ignore devices with id 0a12:0001");
1238 module_param(ignore_sniffer
, bool, 0644);
1239 MODULE_PARM_DESC(ignore_sniffer
, "Ignore devices with id 0a12:0002");
1241 module_param(disable_scofix
, bool, 0644);
1242 MODULE_PARM_DESC(disable_scofix
, "Disable fixup of wrong SCO buffer size");
1244 module_param(force_scofix
, bool, 0644);
1245 MODULE_PARM_DESC(force_scofix
, "Force fixup of wrong SCO buffers size");
1247 module_param(reset
, bool, 0644);
1248 MODULE_PARM_DESC(reset
, "Send HCI reset command on initialization");
1250 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1251 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION
);
1252 MODULE_VERSION(VERSION
);
1253 MODULE_LICENSE("GPL");