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>
38 //#define CONFIG_BT_HCIBTUSB_DEBUG
39 #ifndef CONFIG_BT_HCIBTUSB_DEBUG
46 static int ignore_dga
;
47 static int ignore_csr
;
48 static int ignore_sniffer
;
49 static int disable_scofix
;
50 static int force_scofix
;
53 static struct usb_driver btusb_driver
;
55 #define BTUSB_IGNORE 0x01
56 #define BTUSB_RESET 0x02
57 #define BTUSB_DIGIANSWER 0x04
58 #define BTUSB_CSR 0x08
59 #define BTUSB_SNIFFER 0x10
60 #define BTUSB_BCM92035 0x20
61 #define BTUSB_BROKEN_ISOC 0x40
62 #define BTUSB_WRONG_SCO_MTU 0x80
64 static struct usb_device_id btusb_table
[] = {
65 /* Generic Bluetooth USB device */
66 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
68 /* AVM BlueFRITZ! USB v2.0 */
69 { USB_DEVICE(0x057c, 0x3800) },
71 /* Bluetooth Ultraport Module from IBM */
72 { USB_DEVICE(0x04bf, 0x030a) },
74 /* ALPS Modules with non-standard id */
75 { USB_DEVICE(0x044e, 0x3001) },
76 { USB_DEVICE(0x044e, 0x3002) },
78 /* Ericsson with non-standard id */
79 { USB_DEVICE(0x0bdb, 0x1002) },
81 /* Canyon CN-BTU1 with HID interfaces */
82 { USB_DEVICE(0x0c10, 0x0000), .driver_info
= BTUSB_RESET
},
84 { } /* Terminating entry */
87 MODULE_DEVICE_TABLE(usb
, btusb_table
);
89 static struct usb_device_id blacklist_table
[] = {
90 /* CSR BlueCore devices */
91 { USB_DEVICE(0x0a12, 0x0001), .driver_info
= BTUSB_CSR
},
93 /* Broadcom BCM2033 without firmware */
94 { USB_DEVICE(0x0a5c, 0x2033), .driver_info
= BTUSB_IGNORE
},
96 /* Broadcom BCM2035 */
97 { USB_DEVICE(0x0a5c, 0x2035), .driver_info
= BTUSB_RESET
| BTUSB_WRONG_SCO_MTU
},
98 { USB_DEVICE(0x0a5c, 0x200a), .driver_info
= BTUSB_RESET
| BTUSB_WRONG_SCO_MTU
},
100 /* Broadcom BCM2045 */
101 { USB_DEVICE(0x0a5c, 0x2039), .driver_info
= BTUSB_RESET
| BTUSB_WRONG_SCO_MTU
},
102 { USB_DEVICE(0x0a5c, 0x2101), .driver_info
= BTUSB_RESET
| BTUSB_WRONG_SCO_MTU
},
104 /* Broadcom BCM2046 */
105 { USB_DEVICE(0x0a5c, 0x2146), .driver_info
= BTUSB_RESET
},
106 { USB_DEVICE(0x0a5c, 0x2151), .driver_info
= BTUSB_RESET
},
108 /* Apple MacBook Pro with Broadcom chip */
109 { USB_DEVICE(0x05ac, 0x820f), .driver_info
= BTUSB_RESET
},
111 /* IBM/Lenovo ThinkPad with Broadcom chip */
112 { USB_DEVICE(0x0a5c, 0x201e), .driver_info
= BTUSB_RESET
| BTUSB_WRONG_SCO_MTU
},
113 { USB_DEVICE(0x0a5c, 0x2110), .driver_info
= BTUSB_RESET
| BTUSB_WRONG_SCO_MTU
},
116 { USB_DEVICE(0x0a5c, 0x2100), .driver_info
= BTUSB_RESET
},
117 { USB_DEVICE(0x0a5c, 0x2154), .driver_info
= BTUSB_RESET
},
119 /* ANYCOM Bluetooth USB-200 and USB-250 */
120 { USB_DEVICE(0x0a5c, 0x2111), .driver_info
= BTUSB_RESET
},
122 /* HP laptop with Broadcom chip */
123 { USB_DEVICE(0x03f0, 0x171d), .driver_info
= BTUSB_RESET
| BTUSB_WRONG_SCO_MTU
},
125 /* Dell laptop with Broadcom chip */
126 { USB_DEVICE(0x413c, 0x8126), .driver_info
= BTUSB_RESET
| BTUSB_WRONG_SCO_MTU
},
128 /* Dell Wireless 370 */
129 { USB_DEVICE(0x413c, 0x8156), .driver_info
= BTUSB_RESET
| BTUSB_WRONG_SCO_MTU
},
131 /* Dell Wireless 410 */
132 { USB_DEVICE(0x413c, 0x8152), .driver_info
= BTUSB_RESET
| BTUSB_WRONG_SCO_MTU
},
134 /* Microsoft Wireless Transceiver for Bluetooth 2.0 */
135 { USB_DEVICE(0x045e, 0x009c), .driver_info
= BTUSB_RESET
},
137 /* Kensington Bluetooth USB adapter */
138 { USB_DEVICE(0x047d, 0x105d), .driver_info
= BTUSB_RESET
},
139 { USB_DEVICE(0x047d, 0x105e), .driver_info
= BTUSB_RESET
| BTUSB_WRONG_SCO_MTU
},
141 /* ISSC Bluetooth Adapter v3.1 */
142 { USB_DEVICE(0x1131, 0x1001), .driver_info
= BTUSB_RESET
},
144 /* RTX Telecom based adapters with buggy SCO support */
145 { USB_DEVICE(0x0400, 0x0807), .driver_info
= BTUSB_BROKEN_ISOC
},
146 { USB_DEVICE(0x0400, 0x080a), .driver_info
= BTUSB_BROKEN_ISOC
},
148 /* CONWISE Technology based adapters with buggy SCO support */
149 { USB_DEVICE(0x0e5e, 0x6622), .driver_info
= BTUSB_BROKEN_ISOC
},
151 /* Belkin F8T012 and F8T013 devices */
152 { USB_DEVICE(0x050d, 0x0012), .driver_info
= BTUSB_RESET
| BTUSB_WRONG_SCO_MTU
},
153 { USB_DEVICE(0x050d, 0x0013), .driver_info
= BTUSB_RESET
| BTUSB_WRONG_SCO_MTU
},
155 /* Belkin F8T016 device */
156 { USB_DEVICE(0x050d, 0x016a), .driver_info
= BTUSB_RESET
},
158 /* Digianswer devices */
159 { USB_DEVICE(0x08fd, 0x0001), .driver_info
= BTUSB_DIGIANSWER
},
160 { USB_DEVICE(0x08fd, 0x0002), .driver_info
= BTUSB_IGNORE
},
162 /* CSR BlueCore Bluetooth Sniffer */
163 { USB_DEVICE(0x0a12, 0x0002), .driver_info
= BTUSB_SNIFFER
},
165 /* Frontline ComProbe Bluetooth Sniffer */
166 { USB_DEVICE(0x16d3, 0x0002), .driver_info
= BTUSB_SNIFFER
},
168 { } /* Terminating entry */
171 #define BTUSB_MAX_ISOC_FRAMES 10
173 #define BTUSB_INTR_RUNNING 0
174 #define BTUSB_BULK_RUNNING 1
175 #define BTUSB_ISOC_RUNNING 2
178 struct hci_dev
*hdev
;
179 struct usb_device
*udev
;
180 struct usb_interface
*intf
;
181 struct usb_interface
*isoc
;
187 struct work_struct work
;
189 struct usb_anchor tx_anchor
;
190 struct usb_anchor intr_anchor
;
191 struct usb_anchor bulk_anchor
;
192 struct usb_anchor isoc_anchor
;
194 struct usb_endpoint_descriptor
*intr_ep
;
195 struct usb_endpoint_descriptor
*bulk_tx_ep
;
196 struct usb_endpoint_descriptor
*bulk_rx_ep
;
197 struct usb_endpoint_descriptor
*isoc_tx_ep
;
198 struct usb_endpoint_descriptor
*isoc_rx_ep
;
204 static void btusb_intr_complete(struct urb
*urb
)
206 struct hci_dev
*hdev
= urb
->context
;
207 struct btusb_data
*data
= hdev
->driver_data
;
210 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
211 urb
, urb
->status
, urb
->actual_length
);
213 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
216 if (urb
->status
== 0) {
217 hdev
->stat
.byte_rx
+= urb
->actual_length
;
219 if (hci_recv_fragment(hdev
, HCI_EVENT_PKT
,
220 urb
->transfer_buffer
,
221 urb
->actual_length
) < 0) {
222 BT_ERR("%s corrupted event packet", hdev
->name
);
227 if (!test_bit(BTUSB_INTR_RUNNING
, &data
->flags
))
230 usb_anchor_urb(urb
, &data
->intr_anchor
);
232 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
234 BT_ERR("%s urb %p failed to resubmit (%d)",
235 hdev
->name
, urb
, -err
);
236 usb_unanchor_urb(urb
);
240 static int btusb_submit_intr_urb(struct hci_dev
*hdev
, gfp_t mem_flags
)
242 struct btusb_data
*data
= hdev
->driver_data
;
248 BT_DBG("%s", hdev
->name
);
253 urb
= usb_alloc_urb(0, mem_flags
);
257 size
= le16_to_cpu(data
->intr_ep
->wMaxPacketSize
);
259 buf
= kmalloc(size
, mem_flags
);
265 pipe
= usb_rcvintpipe(data
->udev
, data
->intr_ep
->bEndpointAddress
);
267 usb_fill_int_urb(urb
, data
->udev
, pipe
, buf
, size
,
268 btusb_intr_complete
, hdev
,
269 data
->intr_ep
->bInterval
);
271 urb
->transfer_flags
|= URB_FREE_BUFFER
;
273 usb_anchor_urb(urb
, &data
->intr_anchor
);
275 err
= usb_submit_urb(urb
, mem_flags
);
277 BT_ERR("%s urb %p submission failed (%d)",
278 hdev
->name
, urb
, -err
);
279 usb_unanchor_urb(urb
);
287 static void btusb_bulk_complete(struct urb
*urb
)
289 struct hci_dev
*hdev
= urb
->context
;
290 struct btusb_data
*data
= hdev
->driver_data
;
293 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
294 urb
, urb
->status
, urb
->actual_length
);
296 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
299 if (urb
->status
== 0) {
300 hdev
->stat
.byte_rx
+= urb
->actual_length
;
302 if (hci_recv_fragment(hdev
, HCI_ACLDATA_PKT
,
303 urb
->transfer_buffer
,
304 urb
->actual_length
) < 0) {
305 BT_ERR("%s corrupted ACL packet", hdev
->name
);
310 if (!test_bit(BTUSB_BULK_RUNNING
, &data
->flags
))
313 usb_anchor_urb(urb
, &data
->bulk_anchor
);
315 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
317 BT_ERR("%s urb %p failed to resubmit (%d)",
318 hdev
->name
, urb
, -err
);
319 usb_unanchor_urb(urb
);
323 static int btusb_submit_bulk_urb(struct hci_dev
*hdev
, gfp_t mem_flags
)
325 struct btusb_data
*data
= hdev
->driver_data
;
331 BT_DBG("%s", hdev
->name
);
333 if (!data
->bulk_rx_ep
)
336 urb
= usb_alloc_urb(0, mem_flags
);
340 size
= le16_to_cpu(data
->bulk_rx_ep
->wMaxPacketSize
);
342 buf
= kmalloc(size
, mem_flags
);
348 pipe
= usb_rcvbulkpipe(data
->udev
, data
->bulk_rx_ep
->bEndpointAddress
);
350 usb_fill_bulk_urb(urb
, data
->udev
, pipe
,
351 buf
, size
, btusb_bulk_complete
, hdev
);
353 urb
->transfer_flags
|= URB_FREE_BUFFER
;
355 usb_anchor_urb(urb
, &data
->bulk_anchor
);
357 err
= usb_submit_urb(urb
, mem_flags
);
359 BT_ERR("%s urb %p submission failed (%d)",
360 hdev
->name
, urb
, -err
);
361 usb_unanchor_urb(urb
);
369 static void btusb_isoc_complete(struct urb
*urb
)
371 struct hci_dev
*hdev
= urb
->context
;
372 struct btusb_data
*data
= hdev
->driver_data
;
375 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
376 urb
, urb
->status
, urb
->actual_length
);
378 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
381 if (urb
->status
== 0) {
382 for (i
= 0; i
< urb
->number_of_packets
; i
++) {
383 unsigned int offset
= urb
->iso_frame_desc
[i
].offset
;
384 unsigned int length
= urb
->iso_frame_desc
[i
].actual_length
;
386 if (urb
->iso_frame_desc
[i
].status
)
389 hdev
->stat
.byte_rx
+= length
;
391 if (hci_recv_fragment(hdev
, HCI_SCODATA_PKT
,
392 urb
->transfer_buffer
+ offset
,
394 BT_ERR("%s corrupted SCO packet", hdev
->name
);
400 if (!test_bit(BTUSB_ISOC_RUNNING
, &data
->flags
))
403 usb_anchor_urb(urb
, &data
->isoc_anchor
);
405 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
407 BT_ERR("%s urb %p failed to resubmit (%d)",
408 hdev
->name
, urb
, -err
);
409 usb_unanchor_urb(urb
);
413 static void inline __fill_isoc_descriptor(struct urb
*urb
, int len
, int mtu
)
417 BT_DBG("len %d mtu %d", len
, mtu
);
419 for (i
= 0; i
< BTUSB_MAX_ISOC_FRAMES
&& len
>= mtu
;
420 i
++, offset
+= mtu
, len
-= mtu
) {
421 urb
->iso_frame_desc
[i
].offset
= offset
;
422 urb
->iso_frame_desc
[i
].length
= mtu
;
425 if (len
&& i
< BTUSB_MAX_ISOC_FRAMES
) {
426 urb
->iso_frame_desc
[i
].offset
= offset
;
427 urb
->iso_frame_desc
[i
].length
= len
;
431 urb
->number_of_packets
= i
;
434 static int btusb_submit_isoc_urb(struct hci_dev
*hdev
, gfp_t mem_flags
)
436 struct btusb_data
*data
= hdev
->driver_data
;
442 BT_DBG("%s", hdev
->name
);
444 if (!data
->isoc_rx_ep
)
447 urb
= usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES
, mem_flags
);
451 size
= le16_to_cpu(data
->isoc_rx_ep
->wMaxPacketSize
) *
452 BTUSB_MAX_ISOC_FRAMES
;
454 buf
= kmalloc(size
, mem_flags
);
460 pipe
= usb_rcvisocpipe(data
->udev
, data
->isoc_rx_ep
->bEndpointAddress
);
462 urb
->dev
= data
->udev
;
465 urb
->complete
= btusb_isoc_complete
;
466 urb
->interval
= data
->isoc_rx_ep
->bInterval
;
468 urb
->transfer_flags
= URB_FREE_BUFFER
| URB_ISO_ASAP
;
469 urb
->transfer_buffer
= buf
;
470 urb
->transfer_buffer_length
= size
;
472 __fill_isoc_descriptor(urb
, size
,
473 le16_to_cpu(data
->isoc_rx_ep
->wMaxPacketSize
));
475 usb_anchor_urb(urb
, &data
->isoc_anchor
);
477 err
= usb_submit_urb(urb
, mem_flags
);
479 BT_ERR("%s urb %p submission failed (%d)",
480 hdev
->name
, urb
, -err
);
481 usb_unanchor_urb(urb
);
489 static void btusb_tx_complete(struct urb
*urb
)
491 struct sk_buff
*skb
= urb
->context
;
492 struct hci_dev
*hdev
= (struct hci_dev
*) skb
->dev
;
494 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
495 urb
, urb
->status
, urb
->actual_length
);
497 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
501 hdev
->stat
.byte_tx
+= urb
->transfer_buffer_length
;
506 kfree(urb
->setup_packet
);
511 static int btusb_open(struct hci_dev
*hdev
)
513 struct btusb_data
*data
= hdev
->driver_data
;
516 BT_DBG("%s", hdev
->name
);
518 if (test_and_set_bit(HCI_RUNNING
, &hdev
->flags
))
521 if (test_and_set_bit(BTUSB_INTR_RUNNING
, &data
->flags
))
524 err
= btusb_submit_intr_urb(hdev
, GFP_KERNEL
);
526 clear_bit(BTUSB_INTR_RUNNING
, &data
->flags
);
527 clear_bit(HCI_RUNNING
, &hdev
->flags
);
533 static int btusb_close(struct hci_dev
*hdev
)
535 struct btusb_data
*data
= hdev
->driver_data
;
537 BT_DBG("%s", hdev
->name
);
539 if (!test_and_clear_bit(HCI_RUNNING
, &hdev
->flags
))
542 cancel_work_sync(&data
->work
);
544 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
545 usb_kill_anchored_urbs(&data
->isoc_anchor
);
547 clear_bit(BTUSB_BULK_RUNNING
, &data
->flags
);
548 usb_kill_anchored_urbs(&data
->bulk_anchor
);
550 clear_bit(BTUSB_INTR_RUNNING
, &data
->flags
);
551 usb_kill_anchored_urbs(&data
->intr_anchor
);
556 static int btusb_flush(struct hci_dev
*hdev
)
558 struct btusb_data
*data
= hdev
->driver_data
;
560 BT_DBG("%s", hdev
->name
);
562 usb_kill_anchored_urbs(&data
->tx_anchor
);
567 static int btusb_send_frame(struct sk_buff
*skb
)
569 struct hci_dev
*hdev
= (struct hci_dev
*) skb
->dev
;
570 struct btusb_data
*data
= hdev
->driver_data
;
571 struct usb_ctrlrequest
*dr
;
576 BT_DBG("%s", hdev
->name
);
578 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
581 switch (bt_cb(skb
)->pkt_type
) {
582 case HCI_COMMAND_PKT
:
583 urb
= usb_alloc_urb(0, GFP_ATOMIC
);
587 dr
= kmalloc(sizeof(*dr
), GFP_ATOMIC
);
593 dr
->bRequestType
= USB_TYPE_CLASS
;
597 dr
->wLength
= __cpu_to_le16(skb
->len
);
599 pipe
= usb_sndctrlpipe(data
->udev
, 0x00);
601 usb_fill_control_urb(urb
, data
->udev
, pipe
, (void *) dr
,
602 skb
->data
, skb
->len
, btusb_tx_complete
, skb
);
607 case HCI_ACLDATA_PKT
:
608 if (!data
->bulk_tx_ep
|| hdev
->conn_hash
.acl_num
< 1)
611 urb
= usb_alloc_urb(0, GFP_ATOMIC
);
615 pipe
= usb_sndbulkpipe(data
->udev
,
616 data
->bulk_tx_ep
->bEndpointAddress
);
618 usb_fill_bulk_urb(urb
, data
->udev
, pipe
,
619 skb
->data
, skb
->len
, btusb_tx_complete
, skb
);
624 case HCI_SCODATA_PKT
:
625 if (!data
->isoc_tx_ep
|| hdev
->conn_hash
.sco_num
< 1)
628 urb
= usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES
, GFP_ATOMIC
);
632 pipe
= usb_sndisocpipe(data
->udev
,
633 data
->isoc_tx_ep
->bEndpointAddress
);
635 urb
->dev
= data
->udev
;
638 urb
->complete
= btusb_tx_complete
;
639 urb
->interval
= data
->isoc_tx_ep
->bInterval
;
641 urb
->transfer_flags
= URB_ISO_ASAP
;
642 urb
->transfer_buffer
= skb
->data
;
643 urb
->transfer_buffer_length
= skb
->len
;
645 __fill_isoc_descriptor(urb
, skb
->len
,
646 le16_to_cpu(data
->isoc_tx_ep
->wMaxPacketSize
));
655 usb_anchor_urb(urb
, &data
->tx_anchor
);
657 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
659 BT_ERR("%s urb %p submission failed", hdev
->name
, urb
);
660 kfree(urb
->setup_packet
);
661 usb_unanchor_urb(urb
);
669 static void btusb_destruct(struct hci_dev
*hdev
)
671 struct btusb_data
*data
= hdev
->driver_data
;
673 BT_DBG("%s", hdev
->name
);
678 static void btusb_notify(struct hci_dev
*hdev
, unsigned int evt
)
680 struct btusb_data
*data
= hdev
->driver_data
;
682 BT_DBG("%s evt %d", hdev
->name
, evt
);
684 if (hdev
->conn_hash
.acl_num
> 0) {
685 if (!test_and_set_bit(BTUSB_BULK_RUNNING
, &data
->flags
)) {
686 if (btusb_submit_bulk_urb(hdev
, GFP_ATOMIC
) < 0)
687 clear_bit(BTUSB_BULK_RUNNING
, &data
->flags
);
689 btusb_submit_bulk_urb(hdev
, GFP_ATOMIC
);
692 clear_bit(BTUSB_BULK_RUNNING
, &data
->flags
);
693 usb_unlink_anchored_urbs(&data
->bulk_anchor
);
696 schedule_work(&data
->work
);
699 static int inline __set_isoc_interface(struct hci_dev
*hdev
, int altsetting
)
701 struct btusb_data
*data
= hdev
->driver_data
;
702 struct usb_interface
*intf
= data
->isoc
;
703 struct usb_endpoint_descriptor
*ep_desc
;
709 err
= usb_set_interface(data
->udev
, 1, altsetting
);
711 BT_ERR("%s setting interface failed (%d)", hdev
->name
, -err
);
715 data
->isoc_altsetting
= altsetting
;
717 data
->isoc_tx_ep
= NULL
;
718 data
->isoc_rx_ep
= NULL
;
720 for (i
= 0; i
< intf
->cur_altsetting
->desc
.bNumEndpoints
; i
++) {
721 ep_desc
= &intf
->cur_altsetting
->endpoint
[i
].desc
;
723 if (!data
->isoc_tx_ep
&& usb_endpoint_is_isoc_out(ep_desc
)) {
724 data
->isoc_tx_ep
= ep_desc
;
728 if (!data
->isoc_rx_ep
&& usb_endpoint_is_isoc_in(ep_desc
)) {
729 data
->isoc_rx_ep
= ep_desc
;
734 if (!data
->isoc_tx_ep
|| !data
->isoc_rx_ep
) {
735 BT_ERR("%s invalid SCO descriptors", hdev
->name
);
742 static void btusb_work(struct work_struct
*work
)
744 struct btusb_data
*data
= container_of(work
, struct btusb_data
, work
);
745 struct hci_dev
*hdev
= data
->hdev
;
747 if (hdev
->conn_hash
.sco_num
> 0) {
748 if (data
->isoc_altsetting
!= 2) {
749 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
750 usb_kill_anchored_urbs(&data
->isoc_anchor
);
752 if (__set_isoc_interface(hdev
, 2) < 0)
756 if (!test_and_set_bit(BTUSB_ISOC_RUNNING
, &data
->flags
)) {
757 if (btusb_submit_isoc_urb(hdev
, GFP_KERNEL
) < 0)
758 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
760 btusb_submit_isoc_urb(hdev
, GFP_KERNEL
);
763 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
764 usb_kill_anchored_urbs(&data
->isoc_anchor
);
766 __set_isoc_interface(hdev
, 0);
770 static int btusb_probe(struct usb_interface
*intf
,
771 const struct usb_device_id
*id
)
773 struct usb_endpoint_descriptor
*ep_desc
;
774 struct btusb_data
*data
;
775 struct hci_dev
*hdev
;
778 BT_DBG("intf %p id %p", intf
, id
);
780 /* interface numbers are hardcoded in the spec */
781 if (intf
->cur_altsetting
->desc
.bInterfaceNumber
!= 0)
784 if (!id
->driver_info
) {
785 const struct usb_device_id
*match
;
786 match
= usb_match_id(intf
, blacklist_table
);
791 if (id
->driver_info
== BTUSB_IGNORE
)
794 if (ignore_dga
&& id
->driver_info
& BTUSB_DIGIANSWER
)
797 if (ignore_csr
&& id
->driver_info
& BTUSB_CSR
)
800 if (ignore_sniffer
&& id
->driver_info
& BTUSB_SNIFFER
)
803 data
= kzalloc(sizeof(*data
), GFP_KERNEL
);
807 for (i
= 0; i
< intf
->cur_altsetting
->desc
.bNumEndpoints
; i
++) {
808 ep_desc
= &intf
->cur_altsetting
->endpoint
[i
].desc
;
810 if (!data
->intr_ep
&& usb_endpoint_is_int_in(ep_desc
)) {
811 data
->intr_ep
= ep_desc
;
815 if (!data
->bulk_tx_ep
&& usb_endpoint_is_bulk_out(ep_desc
)) {
816 data
->bulk_tx_ep
= ep_desc
;
820 if (!data
->bulk_rx_ep
&& usb_endpoint_is_bulk_in(ep_desc
)) {
821 data
->bulk_rx_ep
= ep_desc
;
826 if (!data
->intr_ep
|| !data
->bulk_tx_ep
|| !data
->bulk_rx_ep
) {
831 data
->udev
= interface_to_usbdev(intf
);
834 spin_lock_init(&data
->lock
);
836 INIT_WORK(&data
->work
, btusb_work
);
838 init_usb_anchor(&data
->tx_anchor
);
839 init_usb_anchor(&data
->intr_anchor
);
840 init_usb_anchor(&data
->bulk_anchor
);
841 init_usb_anchor(&data
->isoc_anchor
);
843 hdev
= hci_alloc_dev();
849 hdev
->type
= HCI_USB
;
850 hdev
->driver_data
= data
;
854 SET_HCIDEV_DEV(hdev
, &intf
->dev
);
856 hdev
->open
= btusb_open
;
857 hdev
->close
= btusb_close
;
858 hdev
->flush
= btusb_flush
;
859 hdev
->send
= btusb_send_frame
;
860 hdev
->destruct
= btusb_destruct
;
861 hdev
->notify
= btusb_notify
;
863 hdev
->owner
= THIS_MODULE
;
865 /* interface numbers are hardcoded in the spec */
866 data
->isoc
= usb_ifnum_to_if(data
->udev
, 1);
868 if (reset
|| id
->driver_info
& BTUSB_RESET
)
869 set_bit(HCI_QUIRK_RESET_ON_INIT
, &hdev
->quirks
);
871 if (force_scofix
|| id
->driver_info
& BTUSB_WRONG_SCO_MTU
) {
873 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE
, &hdev
->quirks
);
876 if (id
->driver_info
& BTUSB_BROKEN_ISOC
)
879 if (id
->driver_info
& BTUSB_SNIFFER
) {
880 struct usb_device
*udev
= data
->udev
;
882 if (le16_to_cpu(udev
->descriptor
.bcdDevice
) > 0x997)
883 set_bit(HCI_QUIRK_RAW_DEVICE
, &hdev
->quirks
);
888 if (id
->driver_info
& BTUSB_BCM92035
) {
889 unsigned char cmd
[] = { 0x3b, 0xfc, 0x01, 0x00 };
892 skb
= bt_skb_alloc(sizeof(cmd
), GFP_KERNEL
);
894 memcpy(skb_put(skb
, sizeof(cmd
)), cmd
, sizeof(cmd
));
895 skb_queue_tail(&hdev
->driver_init
, skb
);
900 err
= usb_driver_claim_interface(&btusb_driver
,
909 err
= hci_register_dev(hdev
);
916 usb_set_intfdata(intf
, data
);
921 static void btusb_disconnect(struct usb_interface
*intf
)
923 struct btusb_data
*data
= usb_get_intfdata(intf
);
924 struct hci_dev
*hdev
;
926 BT_DBG("intf %p", intf
);
933 __hci_dev_hold(hdev
);
935 usb_set_intfdata(data
->intf
, NULL
);
938 usb_set_intfdata(data
->isoc
, NULL
);
940 hci_unregister_dev(hdev
);
942 if (intf
== data
->isoc
)
943 usb_driver_release_interface(&btusb_driver
, data
->intf
);
945 usb_driver_release_interface(&btusb_driver
, data
->isoc
);
952 static int btusb_suspend(struct usb_interface
*intf
, pm_message_t message
)
954 struct btusb_data
*data
= usb_get_intfdata(intf
);
956 BT_DBG("intf %p", intf
);
958 if (data
->suspend_count
++)
961 cancel_work_sync(&data
->work
);
963 usb_kill_anchored_urbs(&data
->tx_anchor
);
965 usb_kill_anchored_urbs(&data
->isoc_anchor
);
966 usb_kill_anchored_urbs(&data
->bulk_anchor
);
967 usb_kill_anchored_urbs(&data
->intr_anchor
);
972 static int btusb_resume(struct usb_interface
*intf
)
974 struct btusb_data
*data
= usb_get_intfdata(intf
);
975 struct hci_dev
*hdev
= data
->hdev
;
978 BT_DBG("intf %p", intf
);
980 if (--data
->suspend_count
)
983 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
986 if (test_bit(BTUSB_INTR_RUNNING
, &data
->flags
)) {
987 err
= btusb_submit_intr_urb(hdev
, GFP_NOIO
);
989 clear_bit(BTUSB_INTR_RUNNING
, &data
->flags
);
994 if (test_bit(BTUSB_BULK_RUNNING
, &data
->flags
)) {
995 if (btusb_submit_bulk_urb(hdev
, GFP_NOIO
) < 0)
996 clear_bit(BTUSB_BULK_RUNNING
, &data
->flags
);
998 btusb_submit_bulk_urb(hdev
, GFP_NOIO
);
1001 if (test_bit(BTUSB_ISOC_RUNNING
, &data
->flags
)) {
1002 if (btusb_submit_isoc_urb(hdev
, GFP_NOIO
) < 0)
1003 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
1005 btusb_submit_isoc_urb(hdev
, GFP_NOIO
);
1011 static struct usb_driver btusb_driver
= {
1013 .probe
= btusb_probe
,
1014 .disconnect
= btusb_disconnect
,
1015 .suspend
= btusb_suspend
,
1016 .resume
= btusb_resume
,
1017 .id_table
= btusb_table
,
1020 static int __init
btusb_init(void)
1022 BT_INFO("Generic Bluetooth USB driver ver %s", VERSION
);
1024 return usb_register(&btusb_driver
);
1027 static void __exit
btusb_exit(void)
1029 usb_deregister(&btusb_driver
);
1032 module_init(btusb_init
);
1033 module_exit(btusb_exit
);
1035 module_param(ignore_dga
, bool, 0644);
1036 MODULE_PARM_DESC(ignore_dga
, "Ignore devices with id 08fd:0001");
1038 module_param(ignore_csr
, bool, 0644);
1039 MODULE_PARM_DESC(ignore_csr
, "Ignore devices with id 0a12:0001");
1041 module_param(ignore_sniffer
, bool, 0644);
1042 MODULE_PARM_DESC(ignore_sniffer
, "Ignore devices with id 0a12:0002");
1044 module_param(disable_scofix
, bool, 0644);
1045 MODULE_PARM_DESC(disable_scofix
, "Disable fixup of wrong SCO buffer size");
1047 module_param(force_scofix
, bool, 0644);
1048 MODULE_PARM_DESC(force_scofix
, "Force fixup of wrong SCO buffers size");
1050 module_param(reset
, bool, 0644);
1051 MODULE_PARM_DESC(reset
, "Send HCI reset command on initialization");
1053 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1054 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION
);
1055 MODULE_VERSION(VERSION
);
1056 MODULE_LICENSE("GPL");