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 /* Broadcom BCM2035 */
109 { USB_DEVICE(0x0a5c, 0x2035), .driver_info
= BTUSB_WRONG_SCO_MTU
},
110 { USB_DEVICE(0x0a5c, 0x200a), .driver_info
= BTUSB_WRONG_SCO_MTU
},
111 { USB_DEVICE(0x0a5c, 0x2009), .driver_info
= BTUSB_BCM92035
},
113 /* Broadcom BCM2045 */
114 { USB_DEVICE(0x0a5c, 0x2039), .driver_info
= BTUSB_WRONG_SCO_MTU
},
115 { USB_DEVICE(0x0a5c, 0x2101), .driver_info
= BTUSB_WRONG_SCO_MTU
},
117 /* IBM/Lenovo ThinkPad with Broadcom chip */
118 { USB_DEVICE(0x0a5c, 0x201e), .driver_info
= BTUSB_WRONG_SCO_MTU
},
119 { USB_DEVICE(0x0a5c, 0x2110), .driver_info
= BTUSB_WRONG_SCO_MTU
},
121 /* HP laptop with Broadcom chip */
122 { USB_DEVICE(0x03f0, 0x171d), .driver_info
= BTUSB_WRONG_SCO_MTU
},
124 /* Dell laptop with Broadcom chip */
125 { USB_DEVICE(0x413c, 0x8126), .driver_info
= BTUSB_WRONG_SCO_MTU
},
127 /* Dell Wireless 370 and 410 devices */
128 { USB_DEVICE(0x413c, 0x8152), .driver_info
= BTUSB_WRONG_SCO_MTU
},
129 { USB_DEVICE(0x413c, 0x8156), .driver_info
= BTUSB_WRONG_SCO_MTU
},
131 /* Belkin F8T012 and F8T013 devices */
132 { USB_DEVICE(0x050d, 0x0012), .driver_info
= BTUSB_WRONG_SCO_MTU
},
133 { USB_DEVICE(0x050d, 0x0013), .driver_info
= BTUSB_WRONG_SCO_MTU
},
135 /* Asus WL-BTD202 device */
136 { USB_DEVICE(0x0b05, 0x1715), .driver_info
= BTUSB_WRONG_SCO_MTU
},
138 /* Kensington Bluetooth USB adapter */
139 { USB_DEVICE(0x047d, 0x105e), .driver_info
= BTUSB_WRONG_SCO_MTU
},
141 /* RTX Telecom based adapters with buggy SCO support */
142 { USB_DEVICE(0x0400, 0x0807), .driver_info
= BTUSB_BROKEN_ISOC
},
143 { USB_DEVICE(0x0400, 0x080a), .driver_info
= BTUSB_BROKEN_ISOC
},
145 /* CONWISE Technology based adapters with buggy SCO support */
146 { USB_DEVICE(0x0e5e, 0x6622), .driver_info
= BTUSB_BROKEN_ISOC
},
148 /* Digianswer devices */
149 { USB_DEVICE(0x08fd, 0x0001), .driver_info
= BTUSB_DIGIANSWER
},
150 { USB_DEVICE(0x08fd, 0x0002), .driver_info
= BTUSB_IGNORE
},
152 /* CSR BlueCore Bluetooth Sniffer */
153 { USB_DEVICE(0x0a12, 0x0002), .driver_info
= BTUSB_SNIFFER
},
155 /* Frontline ComProbe Bluetooth Sniffer */
156 { USB_DEVICE(0x16d3, 0x0002), .driver_info
= BTUSB_SNIFFER
},
158 { } /* Terminating entry */
161 #define BTUSB_MAX_ISOC_FRAMES 10
163 #define BTUSB_INTR_RUNNING 0
164 #define BTUSB_BULK_RUNNING 1
165 #define BTUSB_ISOC_RUNNING 2
166 #define BTUSB_SUSPENDING 3
167 #define BTUSB_DID_ISO_RESUME 4
170 struct hci_dev
*hdev
;
171 struct usb_device
*udev
;
172 struct usb_interface
*intf
;
173 struct usb_interface
*isoc
;
179 struct work_struct work
;
180 struct work_struct waker
;
182 struct usb_anchor tx_anchor
;
183 struct usb_anchor intr_anchor
;
184 struct usb_anchor bulk_anchor
;
185 struct usb_anchor isoc_anchor
;
186 struct usb_anchor deferred
;
190 struct usb_endpoint_descriptor
*intr_ep
;
191 struct usb_endpoint_descriptor
*bulk_tx_ep
;
192 struct usb_endpoint_descriptor
*bulk_rx_ep
;
193 struct usb_endpoint_descriptor
*isoc_tx_ep
;
194 struct usb_endpoint_descriptor
*isoc_rx_ep
;
198 unsigned int sco_num
;
203 static int inc_tx(struct btusb_data
*data
)
208 spin_lock_irqsave(&data
->txlock
, flags
);
209 rv
= test_bit(BTUSB_SUSPENDING
, &data
->flags
);
211 data
->tx_in_flight
++;
212 spin_unlock_irqrestore(&data
->txlock
, flags
);
217 static void btusb_intr_complete(struct urb
*urb
)
219 struct hci_dev
*hdev
= urb
->context
;
220 struct btusb_data
*data
= hdev
->driver_data
;
223 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
224 urb
, urb
->status
, urb
->actual_length
);
226 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
229 if (urb
->status
== 0) {
230 hdev
->stat
.byte_rx
+= urb
->actual_length
;
232 if (hci_recv_fragment(hdev
, HCI_EVENT_PKT
,
233 urb
->transfer_buffer
,
234 urb
->actual_length
) < 0) {
235 BT_ERR("%s corrupted event packet", hdev
->name
);
240 if (!test_bit(BTUSB_INTR_RUNNING
, &data
->flags
))
243 usb_mark_last_busy(data
->udev
);
244 usb_anchor_urb(urb
, &data
->intr_anchor
);
246 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
249 BT_ERR("%s urb %p failed to resubmit (%d)",
250 hdev
->name
, urb
, -err
);
251 usb_unanchor_urb(urb
);
255 static int btusb_submit_intr_urb(struct hci_dev
*hdev
, gfp_t mem_flags
)
257 struct btusb_data
*data
= hdev
->driver_data
;
263 BT_DBG("%s", hdev
->name
);
268 urb
= usb_alloc_urb(0, mem_flags
);
272 size
= le16_to_cpu(data
->intr_ep
->wMaxPacketSize
);
274 buf
= kmalloc(size
, mem_flags
);
280 pipe
= usb_rcvintpipe(data
->udev
, data
->intr_ep
->bEndpointAddress
);
282 usb_fill_int_urb(urb
, data
->udev
, pipe
, buf
, size
,
283 btusb_intr_complete
, hdev
,
284 data
->intr_ep
->bInterval
);
286 urb
->transfer_flags
|= URB_FREE_BUFFER
;
288 usb_anchor_urb(urb
, &data
->intr_anchor
);
290 err
= usb_submit_urb(urb
, mem_flags
);
292 BT_ERR("%s urb %p submission failed (%d)",
293 hdev
->name
, urb
, -err
);
294 usb_unanchor_urb(urb
);
302 static void btusb_bulk_complete(struct urb
*urb
)
304 struct hci_dev
*hdev
= urb
->context
;
305 struct btusb_data
*data
= hdev
->driver_data
;
308 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
309 urb
, urb
->status
, urb
->actual_length
);
311 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
314 if (urb
->status
== 0) {
315 hdev
->stat
.byte_rx
+= urb
->actual_length
;
317 if (hci_recv_fragment(hdev
, HCI_ACLDATA_PKT
,
318 urb
->transfer_buffer
,
319 urb
->actual_length
) < 0) {
320 BT_ERR("%s corrupted ACL packet", hdev
->name
);
325 if (!test_bit(BTUSB_BULK_RUNNING
, &data
->flags
))
328 usb_anchor_urb(urb
, &data
->bulk_anchor
);
329 usb_mark_last_busy(data
->udev
);
331 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
334 BT_ERR("%s urb %p failed to resubmit (%d)",
335 hdev
->name
, urb
, -err
);
336 usb_unanchor_urb(urb
);
340 static int btusb_submit_bulk_urb(struct hci_dev
*hdev
, gfp_t mem_flags
)
342 struct btusb_data
*data
= hdev
->driver_data
;
346 int err
, size
= HCI_MAX_FRAME_SIZE
;
348 BT_DBG("%s", hdev
->name
);
350 if (!data
->bulk_rx_ep
)
353 urb
= usb_alloc_urb(0, mem_flags
);
357 buf
= kmalloc(size
, mem_flags
);
363 pipe
= usb_rcvbulkpipe(data
->udev
, data
->bulk_rx_ep
->bEndpointAddress
);
365 usb_fill_bulk_urb(urb
, data
->udev
, pipe
,
366 buf
, size
, btusb_bulk_complete
, hdev
);
368 urb
->transfer_flags
|= URB_FREE_BUFFER
;
370 usb_mark_last_busy(data
->udev
);
371 usb_anchor_urb(urb
, &data
->bulk_anchor
);
373 err
= usb_submit_urb(urb
, mem_flags
);
375 BT_ERR("%s urb %p submission failed (%d)",
376 hdev
->name
, urb
, -err
);
377 usb_unanchor_urb(urb
);
385 static void btusb_isoc_complete(struct urb
*urb
)
387 struct hci_dev
*hdev
= urb
->context
;
388 struct btusb_data
*data
= hdev
->driver_data
;
391 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
392 urb
, urb
->status
, urb
->actual_length
);
394 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
397 if (urb
->status
== 0) {
398 for (i
= 0; i
< urb
->number_of_packets
; i
++) {
399 unsigned int offset
= urb
->iso_frame_desc
[i
].offset
;
400 unsigned int length
= urb
->iso_frame_desc
[i
].actual_length
;
402 if (urb
->iso_frame_desc
[i
].status
)
405 hdev
->stat
.byte_rx
+= length
;
407 if (hci_recv_fragment(hdev
, HCI_SCODATA_PKT
,
408 urb
->transfer_buffer
+ offset
,
410 BT_ERR("%s corrupted SCO packet", hdev
->name
);
416 if (!test_bit(BTUSB_ISOC_RUNNING
, &data
->flags
))
419 usb_anchor_urb(urb
, &data
->isoc_anchor
);
421 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
424 BT_ERR("%s urb %p failed to resubmit (%d)",
425 hdev
->name
, urb
, -err
);
426 usb_unanchor_urb(urb
);
430 static void inline __fill_isoc_descriptor(struct urb
*urb
, int len
, int mtu
)
434 BT_DBG("len %d mtu %d", len
, mtu
);
436 for (i
= 0; i
< BTUSB_MAX_ISOC_FRAMES
&& len
>= mtu
;
437 i
++, offset
+= mtu
, len
-= mtu
) {
438 urb
->iso_frame_desc
[i
].offset
= offset
;
439 urb
->iso_frame_desc
[i
].length
= mtu
;
442 if (len
&& i
< BTUSB_MAX_ISOC_FRAMES
) {
443 urb
->iso_frame_desc
[i
].offset
= offset
;
444 urb
->iso_frame_desc
[i
].length
= len
;
448 urb
->number_of_packets
= i
;
451 static int btusb_submit_isoc_urb(struct hci_dev
*hdev
, gfp_t mem_flags
)
453 struct btusb_data
*data
= hdev
->driver_data
;
459 BT_DBG("%s", hdev
->name
);
461 if (!data
->isoc_rx_ep
)
464 urb
= usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES
, mem_flags
);
468 size
= le16_to_cpu(data
->isoc_rx_ep
->wMaxPacketSize
) *
469 BTUSB_MAX_ISOC_FRAMES
;
471 buf
= kmalloc(size
, mem_flags
);
477 pipe
= usb_rcvisocpipe(data
->udev
, data
->isoc_rx_ep
->bEndpointAddress
);
479 urb
->dev
= data
->udev
;
482 urb
->complete
= btusb_isoc_complete
;
483 urb
->interval
= data
->isoc_rx_ep
->bInterval
;
485 urb
->transfer_flags
= URB_FREE_BUFFER
| URB_ISO_ASAP
;
486 urb
->transfer_buffer
= buf
;
487 urb
->transfer_buffer_length
= size
;
489 __fill_isoc_descriptor(urb
, size
,
490 le16_to_cpu(data
->isoc_rx_ep
->wMaxPacketSize
));
492 usb_anchor_urb(urb
, &data
->isoc_anchor
);
494 err
= usb_submit_urb(urb
, mem_flags
);
496 BT_ERR("%s urb %p submission failed (%d)",
497 hdev
->name
, urb
, -err
);
498 usb_unanchor_urb(urb
);
506 static void btusb_tx_complete(struct urb
*urb
)
508 struct sk_buff
*skb
= urb
->context
;
509 struct hci_dev
*hdev
= (struct hci_dev
*) skb
->dev
;
510 struct btusb_data
*data
= hdev
->driver_data
;
512 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
513 urb
, urb
->status
, urb
->actual_length
);
515 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
519 hdev
->stat
.byte_tx
+= urb
->transfer_buffer_length
;
524 spin_lock(&data
->txlock
);
525 data
->tx_in_flight
--;
526 spin_unlock(&data
->txlock
);
528 kfree(urb
->setup_packet
);
533 static void btusb_isoc_tx_complete(struct urb
*urb
)
535 struct sk_buff
*skb
= urb
->context
;
536 struct hci_dev
*hdev
= (struct hci_dev
*) skb
->dev
;
538 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
539 urb
, urb
->status
, urb
->actual_length
);
541 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
545 hdev
->stat
.byte_tx
+= urb
->transfer_buffer_length
;
550 kfree(urb
->setup_packet
);
555 static int btusb_open(struct hci_dev
*hdev
)
557 struct btusb_data
*data
= hdev
->driver_data
;
560 BT_DBG("%s", hdev
->name
);
562 err
= usb_autopm_get_interface(data
->intf
);
566 data
->intf
->needs_remote_wakeup
= 1;
568 if (test_and_set_bit(HCI_RUNNING
, &hdev
->flags
))
571 if (test_and_set_bit(BTUSB_INTR_RUNNING
, &data
->flags
))
574 err
= btusb_submit_intr_urb(hdev
, GFP_KERNEL
);
578 err
= btusb_submit_bulk_urb(hdev
, GFP_KERNEL
);
580 usb_kill_anchored_urbs(&data
->intr_anchor
);
584 set_bit(BTUSB_BULK_RUNNING
, &data
->flags
);
585 btusb_submit_bulk_urb(hdev
, GFP_KERNEL
);
588 usb_autopm_put_interface(data
->intf
);
592 clear_bit(BTUSB_INTR_RUNNING
, &data
->flags
);
593 clear_bit(HCI_RUNNING
, &hdev
->flags
);
594 usb_autopm_put_interface(data
->intf
);
598 static void btusb_stop_traffic(struct btusb_data
*data
)
600 usb_kill_anchored_urbs(&data
->intr_anchor
);
601 usb_kill_anchored_urbs(&data
->bulk_anchor
);
602 usb_kill_anchored_urbs(&data
->isoc_anchor
);
605 static int btusb_close(struct hci_dev
*hdev
)
607 struct btusb_data
*data
= hdev
->driver_data
;
610 BT_DBG("%s", hdev
->name
);
612 if (!test_and_clear_bit(HCI_RUNNING
, &hdev
->flags
))
615 cancel_work_sync(&data
->work
);
616 cancel_work_sync(&data
->waker
);
618 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
619 clear_bit(BTUSB_BULK_RUNNING
, &data
->flags
);
620 clear_bit(BTUSB_INTR_RUNNING
, &data
->flags
);
622 btusb_stop_traffic(data
);
623 err
= usb_autopm_get_interface(data
->intf
);
627 data
->intf
->needs_remote_wakeup
= 0;
628 usb_autopm_put_interface(data
->intf
);
631 usb_scuttle_anchored_urbs(&data
->deferred
);
635 static int btusb_flush(struct hci_dev
*hdev
)
637 struct btusb_data
*data
= hdev
->driver_data
;
639 BT_DBG("%s", hdev
->name
);
641 usb_kill_anchored_urbs(&data
->tx_anchor
);
646 static int btusb_send_frame(struct sk_buff
*skb
)
648 struct hci_dev
*hdev
= (struct hci_dev
*) skb
->dev
;
649 struct btusb_data
*data
= hdev
->driver_data
;
650 struct usb_ctrlrequest
*dr
;
655 BT_DBG("%s", hdev
->name
);
657 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
660 switch (bt_cb(skb
)->pkt_type
) {
661 case HCI_COMMAND_PKT
:
662 urb
= usb_alloc_urb(0, GFP_ATOMIC
);
666 dr
= kmalloc(sizeof(*dr
), GFP_ATOMIC
);
672 dr
->bRequestType
= data
->cmdreq_type
;
676 dr
->wLength
= __cpu_to_le16(skb
->len
);
678 pipe
= usb_sndctrlpipe(data
->udev
, 0x00);
680 usb_fill_control_urb(urb
, data
->udev
, pipe
, (void *) dr
,
681 skb
->data
, skb
->len
, btusb_tx_complete
, skb
);
686 case HCI_ACLDATA_PKT
:
687 if (!data
->bulk_tx_ep
|| hdev
->conn_hash
.acl_num
< 1)
690 urb
= usb_alloc_urb(0, GFP_ATOMIC
);
694 pipe
= usb_sndbulkpipe(data
->udev
,
695 data
->bulk_tx_ep
->bEndpointAddress
);
697 usb_fill_bulk_urb(urb
, data
->udev
, pipe
,
698 skb
->data
, skb
->len
, btusb_tx_complete
, skb
);
703 case HCI_SCODATA_PKT
:
704 if (!data
->isoc_tx_ep
|| hdev
->conn_hash
.sco_num
< 1)
707 urb
= usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES
, GFP_ATOMIC
);
711 pipe
= usb_sndisocpipe(data
->udev
,
712 data
->isoc_tx_ep
->bEndpointAddress
);
714 urb
->dev
= data
->udev
;
717 urb
->complete
= btusb_isoc_tx_complete
;
718 urb
->interval
= data
->isoc_tx_ep
->bInterval
;
720 urb
->transfer_flags
= URB_ISO_ASAP
;
721 urb
->transfer_buffer
= skb
->data
;
722 urb
->transfer_buffer_length
= skb
->len
;
724 __fill_isoc_descriptor(urb
, skb
->len
,
725 le16_to_cpu(data
->isoc_tx_ep
->wMaxPacketSize
));
736 usb_anchor_urb(urb
, &data
->deferred
);
737 schedule_work(&data
->waker
);
743 usb_anchor_urb(urb
, &data
->tx_anchor
);
745 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
747 BT_ERR("%s urb %p submission failed", hdev
->name
, urb
);
748 kfree(urb
->setup_packet
);
749 usb_unanchor_urb(urb
);
751 usb_mark_last_busy(data
->udev
);
760 static void btusb_destruct(struct hci_dev
*hdev
)
762 struct btusb_data
*data
= hdev
->driver_data
;
764 BT_DBG("%s", hdev
->name
);
769 static void btusb_notify(struct hci_dev
*hdev
, unsigned int evt
)
771 struct btusb_data
*data
= hdev
->driver_data
;
773 BT_DBG("%s evt %d", hdev
->name
, evt
);
775 if (hdev
->conn_hash
.sco_num
!= data
->sco_num
) {
776 data
->sco_num
= hdev
->conn_hash
.sco_num
;
777 schedule_work(&data
->work
);
781 static int inline __set_isoc_interface(struct hci_dev
*hdev
, int altsetting
)
783 struct btusb_data
*data
= hdev
->driver_data
;
784 struct usb_interface
*intf
= data
->isoc
;
785 struct usb_endpoint_descriptor
*ep_desc
;
791 err
= usb_set_interface(data
->udev
, 1, altsetting
);
793 BT_ERR("%s setting interface failed (%d)", hdev
->name
, -err
);
797 data
->isoc_altsetting
= altsetting
;
799 data
->isoc_tx_ep
= NULL
;
800 data
->isoc_rx_ep
= NULL
;
802 for (i
= 0; i
< intf
->cur_altsetting
->desc
.bNumEndpoints
; i
++) {
803 ep_desc
= &intf
->cur_altsetting
->endpoint
[i
].desc
;
805 if (!data
->isoc_tx_ep
&& usb_endpoint_is_isoc_out(ep_desc
)) {
806 data
->isoc_tx_ep
= ep_desc
;
810 if (!data
->isoc_rx_ep
&& usb_endpoint_is_isoc_in(ep_desc
)) {
811 data
->isoc_rx_ep
= ep_desc
;
816 if (!data
->isoc_tx_ep
|| !data
->isoc_rx_ep
) {
817 BT_ERR("%s invalid SCO descriptors", hdev
->name
);
824 static void btusb_work(struct work_struct
*work
)
826 struct btusb_data
*data
= container_of(work
, struct btusb_data
, work
);
827 struct hci_dev
*hdev
= data
->hdev
;
830 if (hdev
->conn_hash
.sco_num
> 0) {
831 if (!test_bit(BTUSB_DID_ISO_RESUME
, &data
->flags
)) {
832 err
= usb_autopm_get_interface(data
->isoc
? data
->isoc
: data
->intf
);
834 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
835 usb_kill_anchored_urbs(&data
->isoc_anchor
);
839 set_bit(BTUSB_DID_ISO_RESUME
, &data
->flags
);
841 if (data
->isoc_altsetting
!= 2) {
842 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
843 usb_kill_anchored_urbs(&data
->isoc_anchor
);
845 if (__set_isoc_interface(hdev
, 2) < 0)
849 if (!test_and_set_bit(BTUSB_ISOC_RUNNING
, &data
->flags
)) {
850 if (btusb_submit_isoc_urb(hdev
, GFP_KERNEL
) < 0)
851 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
853 btusb_submit_isoc_urb(hdev
, GFP_KERNEL
);
856 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
857 usb_kill_anchored_urbs(&data
->isoc_anchor
);
859 __set_isoc_interface(hdev
, 0);
860 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME
, &data
->flags
))
861 usb_autopm_put_interface(data
->isoc
? data
->isoc
: data
->intf
);
865 static void btusb_waker(struct work_struct
*work
)
867 struct btusb_data
*data
= container_of(work
, struct btusb_data
, waker
);
870 err
= usb_autopm_get_interface(data
->intf
);
874 usb_autopm_put_interface(data
->intf
);
877 static int btusb_probe(struct usb_interface
*intf
,
878 const struct usb_device_id
*id
)
880 struct usb_endpoint_descriptor
*ep_desc
;
881 struct btusb_data
*data
;
882 struct hci_dev
*hdev
;
885 BT_DBG("intf %p id %p", intf
, id
);
887 /* interface numbers are hardcoded in the spec */
888 if (intf
->cur_altsetting
->desc
.bInterfaceNumber
!= 0)
891 if (!id
->driver_info
) {
892 const struct usb_device_id
*match
;
893 match
= usb_match_id(intf
, blacklist_table
);
898 if (id
->driver_info
== BTUSB_IGNORE
)
901 if (ignore_dga
&& id
->driver_info
& BTUSB_DIGIANSWER
)
904 if (ignore_csr
&& id
->driver_info
& BTUSB_CSR
)
907 if (ignore_sniffer
&& id
->driver_info
& BTUSB_SNIFFER
)
910 data
= kzalloc(sizeof(*data
), GFP_KERNEL
);
914 for (i
= 0; i
< intf
->cur_altsetting
->desc
.bNumEndpoints
; i
++) {
915 ep_desc
= &intf
->cur_altsetting
->endpoint
[i
].desc
;
917 if (!data
->intr_ep
&& usb_endpoint_is_int_in(ep_desc
)) {
918 data
->intr_ep
= ep_desc
;
922 if (!data
->bulk_tx_ep
&& usb_endpoint_is_bulk_out(ep_desc
)) {
923 data
->bulk_tx_ep
= ep_desc
;
927 if (!data
->bulk_rx_ep
&& usb_endpoint_is_bulk_in(ep_desc
)) {
928 data
->bulk_rx_ep
= ep_desc
;
933 if (!data
->intr_ep
|| !data
->bulk_tx_ep
|| !data
->bulk_rx_ep
) {
938 data
->cmdreq_type
= USB_TYPE_CLASS
;
940 data
->udev
= interface_to_usbdev(intf
);
943 spin_lock_init(&data
->lock
);
945 INIT_WORK(&data
->work
, btusb_work
);
946 INIT_WORK(&data
->waker
, btusb_waker
);
947 spin_lock_init(&data
->txlock
);
949 init_usb_anchor(&data
->tx_anchor
);
950 init_usb_anchor(&data
->intr_anchor
);
951 init_usb_anchor(&data
->bulk_anchor
);
952 init_usb_anchor(&data
->isoc_anchor
);
953 init_usb_anchor(&data
->deferred
);
955 hdev
= hci_alloc_dev();
962 hdev
->driver_data
= data
;
966 SET_HCIDEV_DEV(hdev
, &intf
->dev
);
968 hdev
->open
= btusb_open
;
969 hdev
->close
= btusb_close
;
970 hdev
->flush
= btusb_flush
;
971 hdev
->send
= btusb_send_frame
;
972 hdev
->destruct
= btusb_destruct
;
973 hdev
->notify
= btusb_notify
;
975 hdev
->owner
= THIS_MODULE
;
977 /* Interface numbers are hardcoded in the specification */
978 data
->isoc
= usb_ifnum_to_if(data
->udev
, 1);
981 set_bit(HCI_QUIRK_NO_RESET
, &hdev
->quirks
);
983 if (force_scofix
|| id
->driver_info
& BTUSB_WRONG_SCO_MTU
) {
985 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE
, &hdev
->quirks
);
988 if (id
->driver_info
& BTUSB_BROKEN_ISOC
)
991 if (id
->driver_info
& BTUSB_DIGIANSWER
) {
992 data
->cmdreq_type
= USB_TYPE_VENDOR
;
993 set_bit(HCI_QUIRK_NO_RESET
, &hdev
->quirks
);
996 if (id
->driver_info
& BTUSB_CSR
) {
997 struct usb_device
*udev
= data
->udev
;
999 /* Old firmware would otherwise execute USB reset */
1000 if (le16_to_cpu(udev
->descriptor
.bcdDevice
) < 0x117)
1001 set_bit(HCI_QUIRK_NO_RESET
, &hdev
->quirks
);
1004 if (id
->driver_info
& BTUSB_SNIFFER
) {
1005 struct usb_device
*udev
= data
->udev
;
1007 /* New sniffer firmware has crippled HCI interface */
1008 if (le16_to_cpu(udev
->descriptor
.bcdDevice
) > 0x997)
1009 set_bit(HCI_QUIRK_RAW_DEVICE
, &hdev
->quirks
);
1014 if (id
->driver_info
& BTUSB_BCM92035
) {
1015 unsigned char cmd
[] = { 0x3b, 0xfc, 0x01, 0x00 };
1016 struct sk_buff
*skb
;
1018 skb
= bt_skb_alloc(sizeof(cmd
), GFP_KERNEL
);
1020 memcpy(skb_put(skb
, sizeof(cmd
)), cmd
, sizeof(cmd
));
1021 skb_queue_tail(&hdev
->driver_init
, skb
);
1026 err
= usb_driver_claim_interface(&btusb_driver
,
1035 err
= hci_register_dev(hdev
);
1042 usb_set_intfdata(intf
, data
);
1044 usb_enable_autosuspend(interface_to_usbdev(intf
));
1049 static void btusb_disconnect(struct usb_interface
*intf
)
1051 struct btusb_data
*data
= usb_get_intfdata(intf
);
1052 struct hci_dev
*hdev
;
1054 BT_DBG("intf %p", intf
);
1061 __hci_dev_hold(hdev
);
1063 usb_set_intfdata(data
->intf
, NULL
);
1066 usb_set_intfdata(data
->isoc
, NULL
);
1068 hci_unregister_dev(hdev
);
1070 if (intf
== data
->isoc
)
1071 usb_driver_release_interface(&btusb_driver
, data
->intf
);
1072 else if (data
->isoc
)
1073 usb_driver_release_interface(&btusb_driver
, data
->isoc
);
1075 __hci_dev_put(hdev
);
1081 static int btusb_suspend(struct usb_interface
*intf
, pm_message_t message
)
1083 struct btusb_data
*data
= usb_get_intfdata(intf
);
1085 BT_DBG("intf %p", intf
);
1087 if (data
->suspend_count
++)
1090 spin_lock_irq(&data
->txlock
);
1091 if (!((message
.event
& PM_EVENT_AUTO
) && data
->tx_in_flight
)) {
1092 set_bit(BTUSB_SUSPENDING
, &data
->flags
);
1093 spin_unlock_irq(&data
->txlock
);
1095 spin_unlock_irq(&data
->txlock
);
1096 data
->suspend_count
--;
1100 cancel_work_sync(&data
->work
);
1102 btusb_stop_traffic(data
);
1103 usb_kill_anchored_urbs(&data
->tx_anchor
);
1108 static void play_deferred(struct btusb_data
*data
)
1113 while ((urb
= usb_get_from_anchor(&data
->deferred
))) {
1114 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
1118 data
->tx_in_flight
++;
1120 usb_scuttle_anchored_urbs(&data
->deferred
);
1123 static int btusb_resume(struct usb_interface
*intf
)
1125 struct btusb_data
*data
= usb_get_intfdata(intf
);
1126 struct hci_dev
*hdev
= data
->hdev
;
1129 BT_DBG("intf %p", intf
);
1131 if (--data
->suspend_count
)
1134 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
1137 if (test_bit(BTUSB_INTR_RUNNING
, &data
->flags
)) {
1138 err
= btusb_submit_intr_urb(hdev
, GFP_NOIO
);
1140 clear_bit(BTUSB_INTR_RUNNING
, &data
->flags
);
1145 if (test_bit(BTUSB_BULK_RUNNING
, &data
->flags
)) {
1146 err
= btusb_submit_bulk_urb(hdev
, GFP_NOIO
);
1148 clear_bit(BTUSB_BULK_RUNNING
, &data
->flags
);
1152 btusb_submit_bulk_urb(hdev
, GFP_NOIO
);
1155 if (test_bit(BTUSB_ISOC_RUNNING
, &data
->flags
)) {
1156 if (btusb_submit_isoc_urb(hdev
, GFP_NOIO
) < 0)
1157 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
1159 btusb_submit_isoc_urb(hdev
, GFP_NOIO
);
1162 spin_lock_irq(&data
->txlock
);
1163 play_deferred(data
);
1164 clear_bit(BTUSB_SUSPENDING
, &data
->flags
);
1165 spin_unlock_irq(&data
->txlock
);
1166 schedule_work(&data
->work
);
1171 usb_scuttle_anchored_urbs(&data
->deferred
);
1173 spin_lock_irq(&data
->txlock
);
1174 clear_bit(BTUSB_SUSPENDING
, &data
->flags
);
1175 spin_unlock_irq(&data
->txlock
);
1181 static struct usb_driver btusb_driver
= {
1183 .probe
= btusb_probe
,
1184 .disconnect
= btusb_disconnect
,
1186 .suspend
= btusb_suspend
,
1187 .resume
= btusb_resume
,
1189 .id_table
= btusb_table
,
1190 .supports_autosuspend
= 1,
1193 static int __init
btusb_init(void)
1195 BT_INFO("Generic Bluetooth USB driver ver %s", VERSION
);
1197 return usb_register(&btusb_driver
);
1200 static void __exit
btusb_exit(void)
1202 usb_deregister(&btusb_driver
);
1205 module_init(btusb_init
);
1206 module_exit(btusb_exit
);
1208 module_param(ignore_dga
, bool, 0644);
1209 MODULE_PARM_DESC(ignore_dga
, "Ignore devices with id 08fd:0001");
1211 module_param(ignore_csr
, bool, 0644);
1212 MODULE_PARM_DESC(ignore_csr
, "Ignore devices with id 0a12:0001");
1214 module_param(ignore_sniffer
, bool, 0644);
1215 MODULE_PARM_DESC(ignore_sniffer
, "Ignore devices with id 0a12:0002");
1217 module_param(disable_scofix
, bool, 0644);
1218 MODULE_PARM_DESC(disable_scofix
, "Disable fixup of wrong SCO buffer size");
1220 module_param(force_scofix
, bool, 0644);
1221 MODULE_PARM_DESC(force_scofix
, "Force fixup of wrong SCO buffers size");
1223 module_param(reset
, bool, 0644);
1224 MODULE_PARM_DESC(reset
, "Send HCI reset command on initialization");
1226 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1227 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION
);
1228 MODULE_VERSION(VERSION
);
1229 MODULE_LICENSE("GPL");