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 int ignore_dga
;
41 static int ignore_csr
;
42 static int ignore_sniffer
;
43 static int disable_scofix
;
44 static int force_scofix
;
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
58 static struct usb_device_id btusb_table
[] = {
59 /* Generic Bluetooth USB device */
60 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
62 /* Apple MacBookPro 7,1 */
63 { USB_DEVICE(0x05ac, 0x8213) },
66 { USB_DEVICE(0x05ac, 0x8215) },
68 /* Apple MacBookPro6,2 */
69 { USB_DEVICE(0x05ac, 0x8218) },
71 /* Apple MacBookAir3,1, MacBookAir3,2 */
72 { USB_DEVICE(0x05ac, 0x821b) },
74 /* AVM BlueFRITZ! USB v2.0 */
75 { USB_DEVICE(0x057c, 0x3800) },
77 /* Bluetooth Ultraport Module from IBM */
78 { USB_DEVICE(0x04bf, 0x030a) },
80 /* ALPS Modules with non-standard id */
81 { USB_DEVICE(0x044e, 0x3001) },
82 { USB_DEVICE(0x044e, 0x3002) },
84 /* Ericsson with non-standard id */
85 { USB_DEVICE(0x0bdb, 0x1002) },
87 /* Canyon CN-BTU1 with HID interfaces */
88 { USB_DEVICE(0x0c10, 0x0000) },
90 { } /* Terminating entry */
93 MODULE_DEVICE_TABLE(usb
, btusb_table
);
95 static struct usb_device_id blacklist_table
[] = {
96 /* CSR BlueCore devices */
97 { USB_DEVICE(0x0a12, 0x0001), .driver_info
= BTUSB_CSR
},
99 /* Broadcom BCM2033 without firmware */
100 { USB_DEVICE(0x0a5c, 0x2033), .driver_info
= BTUSB_IGNORE
},
102 /* Atheros 3011 with sflash firmware */
103 { USB_DEVICE(0x0cf3, 0x3002), .driver_info
= BTUSB_IGNORE
},
105 /* Atheros AR9285 Malbec with sflash firmware */
106 { USB_DEVICE(0x03f0, 0x311d), .driver_info
= BTUSB_IGNORE
},
108 /* Atheros AR5BBU12 with sflash firmware */
109 { USB_DEVICE(0x0489, 0xe02c), .driver_info
= BTUSB_IGNORE
},
111 /* Broadcom BCM2035 */
112 { USB_DEVICE(0x0a5c, 0x2035), .driver_info
= BTUSB_WRONG_SCO_MTU
},
113 { USB_DEVICE(0x0a5c, 0x200a), .driver_info
= BTUSB_WRONG_SCO_MTU
},
114 { USB_DEVICE(0x0a5c, 0x2009), .driver_info
= BTUSB_BCM92035
},
116 /* Broadcom BCM2045 */
117 { USB_DEVICE(0x0a5c, 0x2039), .driver_info
= BTUSB_WRONG_SCO_MTU
},
118 { USB_DEVICE(0x0a5c, 0x2101), .driver_info
= BTUSB_WRONG_SCO_MTU
},
120 /* IBM/Lenovo ThinkPad with Broadcom chip */
121 { USB_DEVICE(0x0a5c, 0x201e), .driver_info
= BTUSB_WRONG_SCO_MTU
},
122 { USB_DEVICE(0x0a5c, 0x2110), .driver_info
= BTUSB_WRONG_SCO_MTU
},
124 /* HP laptop with Broadcom chip */
125 { USB_DEVICE(0x03f0, 0x171d), .driver_info
= BTUSB_WRONG_SCO_MTU
},
127 /* Dell laptop with Broadcom chip */
128 { USB_DEVICE(0x413c, 0x8126), .driver_info
= BTUSB_WRONG_SCO_MTU
},
130 /* Dell Wireless 370 and 410 devices */
131 { USB_DEVICE(0x413c, 0x8152), .driver_info
= BTUSB_WRONG_SCO_MTU
},
132 { USB_DEVICE(0x413c, 0x8156), .driver_info
= BTUSB_WRONG_SCO_MTU
},
134 /* Belkin F8T012 and F8T013 devices */
135 { USB_DEVICE(0x050d, 0x0012), .driver_info
= BTUSB_WRONG_SCO_MTU
},
136 { USB_DEVICE(0x050d, 0x0013), .driver_info
= BTUSB_WRONG_SCO_MTU
},
138 /* Asus WL-BTD202 device */
139 { USB_DEVICE(0x0b05, 0x1715), .driver_info
= BTUSB_WRONG_SCO_MTU
},
141 /* Kensington Bluetooth USB adapter */
142 { USB_DEVICE(0x047d, 0x105e), .driver_info
= BTUSB_WRONG_SCO_MTU
},
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 /* Digianswer devices */
152 { USB_DEVICE(0x08fd, 0x0001), .driver_info
= BTUSB_DIGIANSWER
},
153 { USB_DEVICE(0x08fd, 0x0002), .driver_info
= BTUSB_IGNORE
},
155 /* CSR BlueCore Bluetooth Sniffer */
156 { USB_DEVICE(0x0a12, 0x0002), .driver_info
= BTUSB_SNIFFER
},
158 /* Frontline ComProbe Bluetooth Sniffer */
159 { USB_DEVICE(0x16d3, 0x0002), .driver_info
= BTUSB_SNIFFER
},
161 { } /* Terminating entry */
164 #define BTUSB_MAX_ISOC_FRAMES 10
166 #define BTUSB_INTR_RUNNING 0
167 #define BTUSB_BULK_RUNNING 1
168 #define BTUSB_ISOC_RUNNING 2
169 #define BTUSB_SUSPENDING 3
170 #define BTUSB_DID_ISO_RESUME 4
173 struct hci_dev
*hdev
;
174 struct usb_device
*udev
;
175 struct usb_interface
*intf
;
176 struct usb_interface
*isoc
;
182 struct work_struct work
;
183 struct work_struct waker
;
185 struct usb_anchor tx_anchor
;
186 struct usb_anchor intr_anchor
;
187 struct usb_anchor bulk_anchor
;
188 struct usb_anchor isoc_anchor
;
189 struct usb_anchor deferred
;
193 struct usb_endpoint_descriptor
*intr_ep
;
194 struct usb_endpoint_descriptor
*bulk_tx_ep
;
195 struct usb_endpoint_descriptor
*bulk_rx_ep
;
196 struct usb_endpoint_descriptor
*isoc_tx_ep
;
197 struct usb_endpoint_descriptor
*isoc_rx_ep
;
201 unsigned int sco_num
;
206 static int inc_tx(struct btusb_data
*data
)
211 spin_lock_irqsave(&data
->txlock
, flags
);
212 rv
= test_bit(BTUSB_SUSPENDING
, &data
->flags
);
214 data
->tx_in_flight
++;
215 spin_unlock_irqrestore(&data
->txlock
, flags
);
220 static void btusb_intr_complete(struct urb
*urb
)
222 struct hci_dev
*hdev
= urb
->context
;
223 struct btusb_data
*data
= hdev
->driver_data
;
226 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
227 urb
, urb
->status
, urb
->actual_length
);
229 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
232 if (urb
->status
== 0) {
233 hdev
->stat
.byte_rx
+= urb
->actual_length
;
235 if (hci_recv_fragment(hdev
, HCI_EVENT_PKT
,
236 urb
->transfer_buffer
,
237 urb
->actual_length
) < 0) {
238 BT_ERR("%s corrupted event packet", hdev
->name
);
243 if (!test_bit(BTUSB_INTR_RUNNING
, &data
->flags
))
246 usb_mark_last_busy(data
->udev
);
247 usb_anchor_urb(urb
, &data
->intr_anchor
);
249 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
252 BT_ERR("%s urb %p failed to resubmit (%d)",
253 hdev
->name
, urb
, -err
);
254 usb_unanchor_urb(urb
);
258 static int btusb_submit_intr_urb(struct hci_dev
*hdev
, gfp_t mem_flags
)
260 struct btusb_data
*data
= hdev
->driver_data
;
266 BT_DBG("%s", hdev
->name
);
271 urb
= usb_alloc_urb(0, mem_flags
);
275 size
= le16_to_cpu(data
->intr_ep
->wMaxPacketSize
);
277 buf
= kmalloc(size
, mem_flags
);
283 pipe
= usb_rcvintpipe(data
->udev
, data
->intr_ep
->bEndpointAddress
);
285 usb_fill_int_urb(urb
, data
->udev
, pipe
, buf
, size
,
286 btusb_intr_complete
, hdev
,
287 data
->intr_ep
->bInterval
);
289 urb
->transfer_flags
|= URB_FREE_BUFFER
;
291 usb_anchor_urb(urb
, &data
->intr_anchor
);
293 err
= usb_submit_urb(urb
, mem_flags
);
295 BT_ERR("%s urb %p submission failed (%d)",
296 hdev
->name
, urb
, -err
);
297 usb_unanchor_urb(urb
);
305 static void btusb_bulk_complete(struct urb
*urb
)
307 struct hci_dev
*hdev
= urb
->context
;
308 struct btusb_data
*data
= hdev
->driver_data
;
311 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
312 urb
, urb
->status
, urb
->actual_length
);
314 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
317 if (urb
->status
== 0) {
318 hdev
->stat
.byte_rx
+= urb
->actual_length
;
320 if (hci_recv_fragment(hdev
, HCI_ACLDATA_PKT
,
321 urb
->transfer_buffer
,
322 urb
->actual_length
) < 0) {
323 BT_ERR("%s corrupted ACL packet", hdev
->name
);
328 if (!test_bit(BTUSB_BULK_RUNNING
, &data
->flags
))
331 usb_anchor_urb(urb
, &data
->bulk_anchor
);
332 usb_mark_last_busy(data
->udev
);
334 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
337 BT_ERR("%s urb %p failed to resubmit (%d)",
338 hdev
->name
, urb
, -err
);
339 usb_unanchor_urb(urb
);
343 static int btusb_submit_bulk_urb(struct hci_dev
*hdev
, gfp_t mem_flags
)
345 struct btusb_data
*data
= hdev
->driver_data
;
349 int err
, size
= HCI_MAX_FRAME_SIZE
;
351 BT_DBG("%s", hdev
->name
);
353 if (!data
->bulk_rx_ep
)
356 urb
= usb_alloc_urb(0, mem_flags
);
360 buf
= kmalloc(size
, mem_flags
);
366 pipe
= usb_rcvbulkpipe(data
->udev
, data
->bulk_rx_ep
->bEndpointAddress
);
368 usb_fill_bulk_urb(urb
, data
->udev
, pipe
,
369 buf
, size
, btusb_bulk_complete
, hdev
);
371 urb
->transfer_flags
|= URB_FREE_BUFFER
;
373 usb_mark_last_busy(data
->udev
);
374 usb_anchor_urb(urb
, &data
->bulk_anchor
);
376 err
= usb_submit_urb(urb
, mem_flags
);
378 BT_ERR("%s urb %p submission failed (%d)",
379 hdev
->name
, urb
, -err
);
380 usb_unanchor_urb(urb
);
388 static void btusb_isoc_complete(struct urb
*urb
)
390 struct hci_dev
*hdev
= urb
->context
;
391 struct btusb_data
*data
= hdev
->driver_data
;
394 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
395 urb
, urb
->status
, urb
->actual_length
);
397 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
400 if (urb
->status
== 0) {
401 for (i
= 0; i
< urb
->number_of_packets
; i
++) {
402 unsigned int offset
= urb
->iso_frame_desc
[i
].offset
;
403 unsigned int length
= urb
->iso_frame_desc
[i
].actual_length
;
405 if (urb
->iso_frame_desc
[i
].status
)
408 hdev
->stat
.byte_rx
+= length
;
410 if (hci_recv_fragment(hdev
, HCI_SCODATA_PKT
,
411 urb
->transfer_buffer
+ offset
,
413 BT_ERR("%s corrupted SCO packet", hdev
->name
);
419 if (!test_bit(BTUSB_ISOC_RUNNING
, &data
->flags
))
422 usb_anchor_urb(urb
, &data
->isoc_anchor
);
424 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
427 BT_ERR("%s urb %p failed to resubmit (%d)",
428 hdev
->name
, urb
, -err
);
429 usb_unanchor_urb(urb
);
433 static void inline __fill_isoc_descriptor(struct urb
*urb
, int len
, int mtu
)
437 BT_DBG("len %d mtu %d", len
, mtu
);
439 for (i
= 0; i
< BTUSB_MAX_ISOC_FRAMES
&& len
>= mtu
;
440 i
++, offset
+= mtu
, len
-= mtu
) {
441 urb
->iso_frame_desc
[i
].offset
= offset
;
442 urb
->iso_frame_desc
[i
].length
= mtu
;
445 if (len
&& i
< BTUSB_MAX_ISOC_FRAMES
) {
446 urb
->iso_frame_desc
[i
].offset
= offset
;
447 urb
->iso_frame_desc
[i
].length
= len
;
451 urb
->number_of_packets
= i
;
454 static int btusb_submit_isoc_urb(struct hci_dev
*hdev
, gfp_t mem_flags
)
456 struct btusb_data
*data
= hdev
->driver_data
;
462 BT_DBG("%s", hdev
->name
);
464 if (!data
->isoc_rx_ep
)
467 urb
= usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES
, mem_flags
);
471 size
= le16_to_cpu(data
->isoc_rx_ep
->wMaxPacketSize
) *
472 BTUSB_MAX_ISOC_FRAMES
;
474 buf
= kmalloc(size
, mem_flags
);
480 pipe
= usb_rcvisocpipe(data
->udev
, data
->isoc_rx_ep
->bEndpointAddress
);
482 urb
->dev
= data
->udev
;
485 urb
->complete
= btusb_isoc_complete
;
486 urb
->interval
= data
->isoc_rx_ep
->bInterval
;
488 urb
->transfer_flags
= URB_FREE_BUFFER
| URB_ISO_ASAP
;
489 urb
->transfer_buffer
= buf
;
490 urb
->transfer_buffer_length
= size
;
492 __fill_isoc_descriptor(urb
, size
,
493 le16_to_cpu(data
->isoc_rx_ep
->wMaxPacketSize
));
495 usb_anchor_urb(urb
, &data
->isoc_anchor
);
497 err
= usb_submit_urb(urb
, mem_flags
);
499 BT_ERR("%s urb %p submission failed (%d)",
500 hdev
->name
, urb
, -err
);
501 usb_unanchor_urb(urb
);
509 static void btusb_tx_complete(struct urb
*urb
)
511 struct sk_buff
*skb
= urb
->context
;
512 struct hci_dev
*hdev
= (struct hci_dev
*) skb
->dev
;
513 struct btusb_data
*data
= hdev
->driver_data
;
515 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
516 urb
, urb
->status
, urb
->actual_length
);
518 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
522 hdev
->stat
.byte_tx
+= urb
->transfer_buffer_length
;
527 spin_lock(&data
->txlock
);
528 data
->tx_in_flight
--;
529 spin_unlock(&data
->txlock
);
531 kfree(urb
->setup_packet
);
536 static void btusb_isoc_tx_complete(struct urb
*urb
)
538 struct sk_buff
*skb
= urb
->context
;
539 struct hci_dev
*hdev
= (struct hci_dev
*) skb
->dev
;
541 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
542 urb
, urb
->status
, urb
->actual_length
);
544 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
548 hdev
->stat
.byte_tx
+= urb
->transfer_buffer_length
;
553 kfree(urb
->setup_packet
);
558 static int btusb_open(struct hci_dev
*hdev
)
560 struct btusb_data
*data
= hdev
->driver_data
;
563 BT_DBG("%s", hdev
->name
);
565 err
= usb_autopm_get_interface(data
->intf
);
569 data
->intf
->needs_remote_wakeup
= 1;
571 if (test_and_set_bit(HCI_RUNNING
, &hdev
->flags
))
574 if (test_and_set_bit(BTUSB_INTR_RUNNING
, &data
->flags
))
577 err
= btusb_submit_intr_urb(hdev
, GFP_KERNEL
);
581 err
= btusb_submit_bulk_urb(hdev
, GFP_KERNEL
);
583 usb_kill_anchored_urbs(&data
->intr_anchor
);
587 set_bit(BTUSB_BULK_RUNNING
, &data
->flags
);
588 btusb_submit_bulk_urb(hdev
, GFP_KERNEL
);
591 usb_autopm_put_interface(data
->intf
);
595 clear_bit(BTUSB_INTR_RUNNING
, &data
->flags
);
596 clear_bit(HCI_RUNNING
, &hdev
->flags
);
597 usb_autopm_put_interface(data
->intf
);
601 static void btusb_stop_traffic(struct btusb_data
*data
)
603 usb_kill_anchored_urbs(&data
->intr_anchor
);
604 usb_kill_anchored_urbs(&data
->bulk_anchor
);
605 usb_kill_anchored_urbs(&data
->isoc_anchor
);
608 static int btusb_close(struct hci_dev
*hdev
)
610 struct btusb_data
*data
= hdev
->driver_data
;
613 BT_DBG("%s", hdev
->name
);
615 if (!test_and_clear_bit(HCI_RUNNING
, &hdev
->flags
))
618 cancel_work_sync(&data
->work
);
619 cancel_work_sync(&data
->waker
);
621 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
622 clear_bit(BTUSB_BULK_RUNNING
, &data
->flags
);
623 clear_bit(BTUSB_INTR_RUNNING
, &data
->flags
);
625 btusb_stop_traffic(data
);
626 err
= usb_autopm_get_interface(data
->intf
);
630 data
->intf
->needs_remote_wakeup
= 0;
631 usb_autopm_put_interface(data
->intf
);
634 usb_scuttle_anchored_urbs(&data
->deferred
);
638 static int btusb_flush(struct hci_dev
*hdev
)
640 struct btusb_data
*data
= hdev
->driver_data
;
642 BT_DBG("%s", hdev
->name
);
644 usb_kill_anchored_urbs(&data
->tx_anchor
);
649 static int btusb_send_frame(struct sk_buff
*skb
)
651 struct hci_dev
*hdev
= (struct hci_dev
*) skb
->dev
;
652 struct btusb_data
*data
= hdev
->driver_data
;
653 struct usb_ctrlrequest
*dr
;
658 BT_DBG("%s", hdev
->name
);
660 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
663 switch (bt_cb(skb
)->pkt_type
) {
664 case HCI_COMMAND_PKT
:
665 urb
= usb_alloc_urb(0, GFP_ATOMIC
);
669 dr
= kmalloc(sizeof(*dr
), GFP_ATOMIC
);
675 dr
->bRequestType
= data
->cmdreq_type
;
679 dr
->wLength
= __cpu_to_le16(skb
->len
);
681 pipe
= usb_sndctrlpipe(data
->udev
, 0x00);
683 usb_fill_control_urb(urb
, data
->udev
, pipe
, (void *) dr
,
684 skb
->data
, skb
->len
, btusb_tx_complete
, skb
);
689 case HCI_ACLDATA_PKT
:
690 if (!data
->bulk_tx_ep
|| hdev
->conn_hash
.acl_num
< 1)
693 urb
= usb_alloc_urb(0, GFP_ATOMIC
);
697 pipe
= usb_sndbulkpipe(data
->udev
,
698 data
->bulk_tx_ep
->bEndpointAddress
);
700 usb_fill_bulk_urb(urb
, data
->udev
, pipe
,
701 skb
->data
, skb
->len
, btusb_tx_complete
, skb
);
706 case HCI_SCODATA_PKT
:
707 if (!data
->isoc_tx_ep
|| hdev
->conn_hash
.sco_num
< 1)
710 urb
= usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES
, GFP_ATOMIC
);
714 pipe
= usb_sndisocpipe(data
->udev
,
715 data
->isoc_tx_ep
->bEndpointAddress
);
717 urb
->dev
= data
->udev
;
720 urb
->complete
= btusb_isoc_tx_complete
;
721 urb
->interval
= data
->isoc_tx_ep
->bInterval
;
723 urb
->transfer_flags
= URB_ISO_ASAP
;
724 urb
->transfer_buffer
= skb
->data
;
725 urb
->transfer_buffer_length
= skb
->len
;
727 __fill_isoc_descriptor(urb
, skb
->len
,
728 le16_to_cpu(data
->isoc_tx_ep
->wMaxPacketSize
));
739 usb_anchor_urb(urb
, &data
->deferred
);
740 schedule_work(&data
->waker
);
746 usb_anchor_urb(urb
, &data
->tx_anchor
);
748 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
750 BT_ERR("%s urb %p submission failed", hdev
->name
, urb
);
751 kfree(urb
->setup_packet
);
752 usb_unanchor_urb(urb
);
754 usb_mark_last_busy(data
->udev
);
763 static void btusb_destruct(struct hci_dev
*hdev
)
765 struct btusb_data
*data
= hdev
->driver_data
;
767 BT_DBG("%s", hdev
->name
);
772 static void btusb_notify(struct hci_dev
*hdev
, unsigned int evt
)
774 struct btusb_data
*data
= hdev
->driver_data
;
776 BT_DBG("%s evt %d", hdev
->name
, evt
);
778 if (hdev
->conn_hash
.sco_num
!= data
->sco_num
) {
779 data
->sco_num
= hdev
->conn_hash
.sco_num
;
780 schedule_work(&data
->work
);
784 static int inline __set_isoc_interface(struct hci_dev
*hdev
, int altsetting
)
786 struct btusb_data
*data
= hdev
->driver_data
;
787 struct usb_interface
*intf
= data
->isoc
;
788 struct usb_endpoint_descriptor
*ep_desc
;
794 err
= usb_set_interface(data
->udev
, 1, altsetting
);
796 BT_ERR("%s setting interface failed (%d)", hdev
->name
, -err
);
800 data
->isoc_altsetting
= altsetting
;
802 data
->isoc_tx_ep
= NULL
;
803 data
->isoc_rx_ep
= NULL
;
805 for (i
= 0; i
< intf
->cur_altsetting
->desc
.bNumEndpoints
; i
++) {
806 ep_desc
= &intf
->cur_altsetting
->endpoint
[i
].desc
;
808 if (!data
->isoc_tx_ep
&& usb_endpoint_is_isoc_out(ep_desc
)) {
809 data
->isoc_tx_ep
= ep_desc
;
813 if (!data
->isoc_rx_ep
&& usb_endpoint_is_isoc_in(ep_desc
)) {
814 data
->isoc_rx_ep
= ep_desc
;
819 if (!data
->isoc_tx_ep
|| !data
->isoc_rx_ep
) {
820 BT_ERR("%s invalid SCO descriptors", hdev
->name
);
827 static void btusb_work(struct work_struct
*work
)
829 struct btusb_data
*data
= container_of(work
, struct btusb_data
, work
);
830 struct hci_dev
*hdev
= data
->hdev
;
833 if (hdev
->conn_hash
.sco_num
> 0) {
834 if (!test_bit(BTUSB_DID_ISO_RESUME
, &data
->flags
)) {
835 err
= usb_autopm_get_interface(data
->isoc
? data
->isoc
: data
->intf
);
837 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
838 usb_kill_anchored_urbs(&data
->isoc_anchor
);
842 set_bit(BTUSB_DID_ISO_RESUME
, &data
->flags
);
844 if (data
->isoc_altsetting
!= 2) {
845 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
846 usb_kill_anchored_urbs(&data
->isoc_anchor
);
848 if (__set_isoc_interface(hdev
, 2) < 0)
852 if (!test_and_set_bit(BTUSB_ISOC_RUNNING
, &data
->flags
)) {
853 if (btusb_submit_isoc_urb(hdev
, GFP_KERNEL
) < 0)
854 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
856 btusb_submit_isoc_urb(hdev
, GFP_KERNEL
);
859 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
860 usb_kill_anchored_urbs(&data
->isoc_anchor
);
862 __set_isoc_interface(hdev
, 0);
863 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME
, &data
->flags
))
864 usb_autopm_put_interface(data
->isoc
? data
->isoc
: data
->intf
);
868 static void btusb_waker(struct work_struct
*work
)
870 struct btusb_data
*data
= container_of(work
, struct btusb_data
, waker
);
873 err
= usb_autopm_get_interface(data
->intf
);
877 usb_autopm_put_interface(data
->intf
);
880 static int btusb_probe(struct usb_interface
*intf
,
881 const struct usb_device_id
*id
)
883 struct usb_endpoint_descriptor
*ep_desc
;
884 struct btusb_data
*data
;
885 struct hci_dev
*hdev
;
888 BT_DBG("intf %p id %p", intf
, id
);
890 /* interface numbers are hardcoded in the spec */
891 if (intf
->cur_altsetting
->desc
.bInterfaceNumber
!= 0)
894 if (!id
->driver_info
) {
895 const struct usb_device_id
*match
;
896 match
= usb_match_id(intf
, blacklist_table
);
901 if (id
->driver_info
== BTUSB_IGNORE
)
904 if (ignore_dga
&& id
->driver_info
& BTUSB_DIGIANSWER
)
907 if (ignore_csr
&& id
->driver_info
& BTUSB_CSR
)
910 if (ignore_sniffer
&& id
->driver_info
& BTUSB_SNIFFER
)
913 data
= kzalloc(sizeof(*data
), GFP_KERNEL
);
917 for (i
= 0; i
< intf
->cur_altsetting
->desc
.bNumEndpoints
; i
++) {
918 ep_desc
= &intf
->cur_altsetting
->endpoint
[i
].desc
;
920 if (!data
->intr_ep
&& usb_endpoint_is_int_in(ep_desc
)) {
921 data
->intr_ep
= ep_desc
;
925 if (!data
->bulk_tx_ep
&& usb_endpoint_is_bulk_out(ep_desc
)) {
926 data
->bulk_tx_ep
= ep_desc
;
930 if (!data
->bulk_rx_ep
&& usb_endpoint_is_bulk_in(ep_desc
)) {
931 data
->bulk_rx_ep
= ep_desc
;
936 if (!data
->intr_ep
|| !data
->bulk_tx_ep
|| !data
->bulk_rx_ep
) {
941 data
->cmdreq_type
= USB_TYPE_CLASS
;
943 data
->udev
= interface_to_usbdev(intf
);
946 spin_lock_init(&data
->lock
);
948 INIT_WORK(&data
->work
, btusb_work
);
949 INIT_WORK(&data
->waker
, btusb_waker
);
950 spin_lock_init(&data
->txlock
);
952 init_usb_anchor(&data
->tx_anchor
);
953 init_usb_anchor(&data
->intr_anchor
);
954 init_usb_anchor(&data
->bulk_anchor
);
955 init_usb_anchor(&data
->isoc_anchor
);
956 init_usb_anchor(&data
->deferred
);
958 hdev
= hci_alloc_dev();
965 hdev
->driver_data
= data
;
969 SET_HCIDEV_DEV(hdev
, &intf
->dev
);
971 hdev
->open
= btusb_open
;
972 hdev
->close
= btusb_close
;
973 hdev
->flush
= btusb_flush
;
974 hdev
->send
= btusb_send_frame
;
975 hdev
->destruct
= btusb_destruct
;
976 hdev
->notify
= btusb_notify
;
978 hdev
->owner
= THIS_MODULE
;
980 /* Interface numbers are hardcoded in the specification */
981 data
->isoc
= usb_ifnum_to_if(data
->udev
, 1);
984 set_bit(HCI_QUIRK_NO_RESET
, &hdev
->quirks
);
986 if (force_scofix
|| id
->driver_info
& BTUSB_WRONG_SCO_MTU
) {
988 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE
, &hdev
->quirks
);
991 if (id
->driver_info
& BTUSB_BROKEN_ISOC
)
994 if (id
->driver_info
& BTUSB_DIGIANSWER
) {
995 data
->cmdreq_type
= USB_TYPE_VENDOR
;
996 set_bit(HCI_QUIRK_NO_RESET
, &hdev
->quirks
);
999 if (id
->driver_info
& BTUSB_CSR
) {
1000 struct usb_device
*udev
= data
->udev
;
1002 /* Old firmware would otherwise execute USB reset */
1003 if (le16_to_cpu(udev
->descriptor
.bcdDevice
) < 0x117)
1004 set_bit(HCI_QUIRK_NO_RESET
, &hdev
->quirks
);
1007 if (id
->driver_info
& BTUSB_SNIFFER
) {
1008 struct usb_device
*udev
= data
->udev
;
1010 /* New sniffer firmware has crippled HCI interface */
1011 if (le16_to_cpu(udev
->descriptor
.bcdDevice
) > 0x997)
1012 set_bit(HCI_QUIRK_RAW_DEVICE
, &hdev
->quirks
);
1017 if (id
->driver_info
& BTUSB_BCM92035
) {
1018 unsigned char cmd
[] = { 0x3b, 0xfc, 0x01, 0x00 };
1019 struct sk_buff
*skb
;
1021 skb
= bt_skb_alloc(sizeof(cmd
), GFP_KERNEL
);
1023 memcpy(skb_put(skb
, sizeof(cmd
)), cmd
, sizeof(cmd
));
1024 skb_queue_tail(&hdev
->driver_init
, skb
);
1029 err
= usb_driver_claim_interface(&btusb_driver
,
1038 err
= hci_register_dev(hdev
);
1045 usb_set_intfdata(intf
, data
);
1050 static void btusb_disconnect(struct usb_interface
*intf
)
1052 struct btusb_data
*data
= usb_get_intfdata(intf
);
1053 struct hci_dev
*hdev
;
1055 BT_DBG("intf %p", intf
);
1062 __hci_dev_hold(hdev
);
1064 usb_set_intfdata(data
->intf
, NULL
);
1067 usb_set_intfdata(data
->isoc
, NULL
);
1069 hci_unregister_dev(hdev
);
1071 if (intf
== data
->isoc
)
1072 usb_driver_release_interface(&btusb_driver
, data
->intf
);
1073 else if (data
->isoc
)
1074 usb_driver_release_interface(&btusb_driver
, data
->isoc
);
1076 __hci_dev_put(hdev
);
1082 static int btusb_suspend(struct usb_interface
*intf
, pm_message_t message
)
1084 struct btusb_data
*data
= usb_get_intfdata(intf
);
1086 BT_DBG("intf %p", intf
);
1088 if (data
->suspend_count
++)
1091 spin_lock_irq(&data
->txlock
);
1092 if (!((message
.event
& PM_EVENT_AUTO
) && data
->tx_in_flight
)) {
1093 set_bit(BTUSB_SUSPENDING
, &data
->flags
);
1094 spin_unlock_irq(&data
->txlock
);
1096 spin_unlock_irq(&data
->txlock
);
1097 data
->suspend_count
--;
1101 cancel_work_sync(&data
->work
);
1103 btusb_stop_traffic(data
);
1104 usb_kill_anchored_urbs(&data
->tx_anchor
);
1109 static void play_deferred(struct btusb_data
*data
)
1114 while ((urb
= usb_get_from_anchor(&data
->deferred
))) {
1115 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
1119 data
->tx_in_flight
++;
1121 usb_scuttle_anchored_urbs(&data
->deferred
);
1124 static int btusb_resume(struct usb_interface
*intf
)
1126 struct btusb_data
*data
= usb_get_intfdata(intf
);
1127 struct hci_dev
*hdev
= data
->hdev
;
1130 BT_DBG("intf %p", intf
);
1132 if (--data
->suspend_count
)
1135 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
1138 if (test_bit(BTUSB_INTR_RUNNING
, &data
->flags
)) {
1139 err
= btusb_submit_intr_urb(hdev
, GFP_NOIO
);
1141 clear_bit(BTUSB_INTR_RUNNING
, &data
->flags
);
1146 if (test_bit(BTUSB_BULK_RUNNING
, &data
->flags
)) {
1147 err
= btusb_submit_bulk_urb(hdev
, GFP_NOIO
);
1149 clear_bit(BTUSB_BULK_RUNNING
, &data
->flags
);
1153 btusb_submit_bulk_urb(hdev
, GFP_NOIO
);
1156 if (test_bit(BTUSB_ISOC_RUNNING
, &data
->flags
)) {
1157 if (btusb_submit_isoc_urb(hdev
, GFP_NOIO
) < 0)
1158 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
1160 btusb_submit_isoc_urb(hdev
, GFP_NOIO
);
1163 spin_lock_irq(&data
->txlock
);
1164 play_deferred(data
);
1165 clear_bit(BTUSB_SUSPENDING
, &data
->flags
);
1166 spin_unlock_irq(&data
->txlock
);
1167 schedule_work(&data
->work
);
1172 usb_scuttle_anchored_urbs(&data
->deferred
);
1174 spin_lock_irq(&data
->txlock
);
1175 clear_bit(BTUSB_SUSPENDING
, &data
->flags
);
1176 spin_unlock_irq(&data
->txlock
);
1182 static struct usb_driver btusb_driver
= {
1184 .probe
= btusb_probe
,
1185 .disconnect
= btusb_disconnect
,
1187 .suspend
= btusb_suspend
,
1188 .resume
= btusb_resume
,
1190 .id_table
= btusb_table
,
1191 .supports_autosuspend
= 1,
1194 static int __init
btusb_init(void)
1196 BT_INFO("Generic Bluetooth USB driver ver %s", VERSION
);
1198 return usb_register(&btusb_driver
);
1201 static void __exit
btusb_exit(void)
1203 usb_deregister(&btusb_driver
);
1206 module_init(btusb_init
);
1207 module_exit(btusb_exit
);
1209 module_param(ignore_dga
, bool, 0644);
1210 MODULE_PARM_DESC(ignore_dga
, "Ignore devices with id 08fd:0001");
1212 module_param(ignore_csr
, bool, 0644);
1213 MODULE_PARM_DESC(ignore_csr
, "Ignore devices with id 0a12:0001");
1215 module_param(ignore_sniffer
, bool, 0644);
1216 MODULE_PARM_DESC(ignore_sniffer
, "Ignore devices with id 0a12:0002");
1218 module_param(disable_scofix
, bool, 0644);
1219 MODULE_PARM_DESC(disable_scofix
, "Disable fixup of wrong SCO buffer size");
1221 module_param(force_scofix
, bool, 0644);
1222 MODULE_PARM_DESC(force_scofix
, "Force fixup of wrong SCO buffers size");
1224 module_param(reset
, bool, 0644);
1225 MODULE_PARM_DESC(reset
, "Send HCI reset command on initialization");
1227 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1228 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION
);
1229 MODULE_VERSION(VERSION
);
1230 MODULE_LICENSE("GPL");