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
57 #define BTUSB_ATH3012 0x80
59 static struct usb_device_id btusb_table
[] = {
60 /* Generic Bluetooth USB device */
61 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
63 /* Broadcom SoftSailing reporting vendor specific */
64 { USB_DEVICE(0x05ac, 0x21e1) },
66 /* Apple MacBookPro 7,1 */
67 { USB_DEVICE(0x05ac, 0x8213) },
70 { USB_DEVICE(0x05ac, 0x8215) },
72 /* Apple MacBookPro6,2 */
73 { USB_DEVICE(0x05ac, 0x8218) },
75 /* Apple MacBookAir3,1, MacBookAir3,2 */
76 { USB_DEVICE(0x05ac, 0x821b) },
78 /* Apple MacBookAir4,1 */
79 { USB_DEVICE(0x05ac, 0x821f) },
81 /* Apple MacBookPro8,2 */
82 { USB_DEVICE(0x05ac, 0x821a) },
84 /* Apple MacMini5,1 */
85 { USB_DEVICE(0x05ac, 0x8281) },
87 /* AVM BlueFRITZ! USB v2.0 */
88 { USB_DEVICE(0x057c, 0x3800) },
90 /* Bluetooth Ultraport Module from IBM */
91 { USB_DEVICE(0x04bf, 0x030a) },
93 /* ALPS Modules with non-standard id */
94 { USB_DEVICE(0x044e, 0x3001) },
95 { USB_DEVICE(0x044e, 0x3002) },
97 /* Ericsson with non-standard id */
98 { USB_DEVICE(0x0bdb, 0x1002) },
100 /* Canyon CN-BTU1 with HID interfaces */
101 { USB_DEVICE(0x0c10, 0x0000) },
103 { } /* Terminating entry */
106 MODULE_DEVICE_TABLE(usb
, btusb_table
);
108 static struct usb_device_id blacklist_table
[] = {
109 /* CSR BlueCore devices */
110 { USB_DEVICE(0x0a12, 0x0001), .driver_info
= BTUSB_CSR
},
112 /* Broadcom BCM2033 without firmware */
113 { USB_DEVICE(0x0a5c, 0x2033), .driver_info
= BTUSB_IGNORE
},
115 /* Atheros 3011 with sflash firmware */
116 { USB_DEVICE(0x0cf3, 0x3002), .driver_info
= BTUSB_IGNORE
},
117 { USB_DEVICE(0x13d3, 0x3304), .driver_info
= BTUSB_IGNORE
},
118 { USB_DEVICE(0x0930, 0x0215), .driver_info
= BTUSB_IGNORE
},
120 /* Atheros AR9285 Malbec with sflash firmware */
121 { USB_DEVICE(0x03f0, 0x311d), .driver_info
= BTUSB_IGNORE
},
123 /* Atheros 3012 with sflash firmware */
124 { USB_DEVICE(0x0cf3, 0x3004), .driver_info
= BTUSB_ATH3012
},
126 /* Atheros AR5BBU12 with sflash firmware */
127 { USB_DEVICE(0x0489, 0xe02c), .driver_info
= BTUSB_IGNORE
},
129 /* Broadcom BCM2035 */
130 { USB_DEVICE(0x0a5c, 0x2035), .driver_info
= BTUSB_WRONG_SCO_MTU
},
131 { USB_DEVICE(0x0a5c, 0x200a), .driver_info
= BTUSB_WRONG_SCO_MTU
},
132 { USB_DEVICE(0x0a5c, 0x2009), .driver_info
= BTUSB_BCM92035
},
134 /* Broadcom BCM2045 */
135 { USB_DEVICE(0x0a5c, 0x2039), .driver_info
= BTUSB_WRONG_SCO_MTU
},
136 { USB_DEVICE(0x0a5c, 0x2101), .driver_info
= BTUSB_WRONG_SCO_MTU
},
138 /* IBM/Lenovo ThinkPad with Broadcom chip */
139 { USB_DEVICE(0x0a5c, 0x201e), .driver_info
= BTUSB_WRONG_SCO_MTU
},
140 { USB_DEVICE(0x0a5c, 0x2110), .driver_info
= BTUSB_WRONG_SCO_MTU
},
142 /* HP laptop with Broadcom chip */
143 { USB_DEVICE(0x03f0, 0x171d), .driver_info
= BTUSB_WRONG_SCO_MTU
},
145 /* Dell laptop with Broadcom chip */
146 { USB_DEVICE(0x413c, 0x8126), .driver_info
= BTUSB_WRONG_SCO_MTU
},
148 /* Dell Wireless 370 and 410 devices */
149 { USB_DEVICE(0x413c, 0x8152), .driver_info
= BTUSB_WRONG_SCO_MTU
},
150 { USB_DEVICE(0x413c, 0x8156), .driver_info
= BTUSB_WRONG_SCO_MTU
},
152 /* Belkin F8T012 and F8T013 devices */
153 { USB_DEVICE(0x050d, 0x0012), .driver_info
= BTUSB_WRONG_SCO_MTU
},
154 { USB_DEVICE(0x050d, 0x0013), .driver_info
= BTUSB_WRONG_SCO_MTU
},
156 /* Asus WL-BTD202 device */
157 { USB_DEVICE(0x0b05, 0x1715), .driver_info
= BTUSB_WRONG_SCO_MTU
},
159 /* Kensington Bluetooth USB adapter */
160 { USB_DEVICE(0x047d, 0x105e), .driver_info
= BTUSB_WRONG_SCO_MTU
},
162 /* RTX Telecom based adapters with buggy SCO support */
163 { USB_DEVICE(0x0400, 0x0807), .driver_info
= BTUSB_BROKEN_ISOC
},
164 { USB_DEVICE(0x0400, 0x080a), .driver_info
= BTUSB_BROKEN_ISOC
},
166 /* CONWISE Technology based adapters with buggy SCO support */
167 { USB_DEVICE(0x0e5e, 0x6622), .driver_info
= BTUSB_BROKEN_ISOC
},
169 /* Digianswer devices */
170 { USB_DEVICE(0x08fd, 0x0001), .driver_info
= BTUSB_DIGIANSWER
},
171 { USB_DEVICE(0x08fd, 0x0002), .driver_info
= BTUSB_IGNORE
},
173 /* CSR BlueCore Bluetooth Sniffer */
174 { USB_DEVICE(0x0a12, 0x0002), .driver_info
= BTUSB_SNIFFER
},
176 /* Frontline ComProbe Bluetooth Sniffer */
177 { USB_DEVICE(0x16d3, 0x0002), .driver_info
= BTUSB_SNIFFER
},
179 { } /* Terminating entry */
182 #define BTUSB_MAX_ISOC_FRAMES 10
184 #define BTUSB_INTR_RUNNING 0
185 #define BTUSB_BULK_RUNNING 1
186 #define BTUSB_ISOC_RUNNING 2
187 #define BTUSB_SUSPENDING 3
188 #define BTUSB_DID_ISO_RESUME 4
191 struct hci_dev
*hdev
;
192 struct usb_device
*udev
;
193 struct usb_interface
*intf
;
194 struct usb_interface
*isoc
;
200 struct work_struct work
;
201 struct work_struct waker
;
203 struct usb_anchor tx_anchor
;
204 struct usb_anchor intr_anchor
;
205 struct usb_anchor bulk_anchor
;
206 struct usb_anchor isoc_anchor
;
207 struct usb_anchor deferred
;
211 struct usb_endpoint_descriptor
*intr_ep
;
212 struct usb_endpoint_descriptor
*bulk_tx_ep
;
213 struct usb_endpoint_descriptor
*bulk_rx_ep
;
214 struct usb_endpoint_descriptor
*isoc_tx_ep
;
215 struct usb_endpoint_descriptor
*isoc_rx_ep
;
219 unsigned int sco_num
;
224 static int inc_tx(struct btusb_data
*data
)
229 spin_lock_irqsave(&data
->txlock
, flags
);
230 rv
= test_bit(BTUSB_SUSPENDING
, &data
->flags
);
232 data
->tx_in_flight
++;
233 spin_unlock_irqrestore(&data
->txlock
, flags
);
238 static void btusb_intr_complete(struct urb
*urb
)
240 struct hci_dev
*hdev
= urb
->context
;
241 struct btusb_data
*data
= hdev
->driver_data
;
244 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
245 urb
, urb
->status
, urb
->actual_length
);
247 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
250 if (urb
->status
== 0) {
251 hdev
->stat
.byte_rx
+= urb
->actual_length
;
253 if (hci_recv_fragment(hdev
, HCI_EVENT_PKT
,
254 urb
->transfer_buffer
,
255 urb
->actual_length
) < 0) {
256 BT_ERR("%s corrupted event packet", hdev
->name
);
261 if (!test_bit(BTUSB_INTR_RUNNING
, &data
->flags
))
264 usb_mark_last_busy(data
->udev
);
265 usb_anchor_urb(urb
, &data
->intr_anchor
);
267 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
270 BT_ERR("%s urb %p failed to resubmit (%d)",
271 hdev
->name
, urb
, -err
);
272 usb_unanchor_urb(urb
);
276 static int btusb_submit_intr_urb(struct hci_dev
*hdev
, gfp_t mem_flags
)
278 struct btusb_data
*data
= hdev
->driver_data
;
284 BT_DBG("%s", hdev
->name
);
289 urb
= usb_alloc_urb(0, mem_flags
);
293 size
= le16_to_cpu(data
->intr_ep
->wMaxPacketSize
);
295 buf
= kmalloc(size
, mem_flags
);
301 pipe
= usb_rcvintpipe(data
->udev
, data
->intr_ep
->bEndpointAddress
);
303 usb_fill_int_urb(urb
, data
->udev
, pipe
, buf
, size
,
304 btusb_intr_complete
, hdev
,
305 data
->intr_ep
->bInterval
);
307 urb
->transfer_flags
|= URB_FREE_BUFFER
;
309 usb_anchor_urb(urb
, &data
->intr_anchor
);
311 err
= usb_submit_urb(urb
, mem_flags
);
313 BT_ERR("%s urb %p submission failed (%d)",
314 hdev
->name
, urb
, -err
);
315 usb_unanchor_urb(urb
);
323 static void btusb_bulk_complete(struct urb
*urb
)
325 struct hci_dev
*hdev
= urb
->context
;
326 struct btusb_data
*data
= hdev
->driver_data
;
329 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
330 urb
, urb
->status
, urb
->actual_length
);
332 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
335 if (urb
->status
== 0) {
336 hdev
->stat
.byte_rx
+= urb
->actual_length
;
338 if (hci_recv_fragment(hdev
, HCI_ACLDATA_PKT
,
339 urb
->transfer_buffer
,
340 urb
->actual_length
) < 0) {
341 BT_ERR("%s corrupted ACL packet", hdev
->name
);
346 if (!test_bit(BTUSB_BULK_RUNNING
, &data
->flags
))
349 usb_anchor_urb(urb
, &data
->bulk_anchor
);
350 usb_mark_last_busy(data
->udev
);
352 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
355 BT_ERR("%s urb %p failed to resubmit (%d)",
356 hdev
->name
, urb
, -err
);
357 usb_unanchor_urb(urb
);
361 static int btusb_submit_bulk_urb(struct hci_dev
*hdev
, gfp_t mem_flags
)
363 struct btusb_data
*data
= hdev
->driver_data
;
367 int err
, size
= HCI_MAX_FRAME_SIZE
;
369 BT_DBG("%s", hdev
->name
);
371 if (!data
->bulk_rx_ep
)
374 urb
= usb_alloc_urb(0, mem_flags
);
378 buf
= kmalloc(size
, mem_flags
);
384 pipe
= usb_rcvbulkpipe(data
->udev
, data
->bulk_rx_ep
->bEndpointAddress
);
386 usb_fill_bulk_urb(urb
, data
->udev
, pipe
,
387 buf
, size
, btusb_bulk_complete
, hdev
);
389 urb
->transfer_flags
|= URB_FREE_BUFFER
;
391 usb_mark_last_busy(data
->udev
);
392 usb_anchor_urb(urb
, &data
->bulk_anchor
);
394 err
= usb_submit_urb(urb
, mem_flags
);
396 BT_ERR("%s urb %p submission failed (%d)",
397 hdev
->name
, urb
, -err
);
398 usb_unanchor_urb(urb
);
406 static void btusb_isoc_complete(struct urb
*urb
)
408 struct hci_dev
*hdev
= urb
->context
;
409 struct btusb_data
*data
= hdev
->driver_data
;
412 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
413 urb
, urb
->status
, urb
->actual_length
);
415 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
418 if (urb
->status
== 0) {
419 for (i
= 0; i
< urb
->number_of_packets
; i
++) {
420 unsigned int offset
= urb
->iso_frame_desc
[i
].offset
;
421 unsigned int length
= urb
->iso_frame_desc
[i
].actual_length
;
423 if (urb
->iso_frame_desc
[i
].status
)
426 hdev
->stat
.byte_rx
+= length
;
428 if (hci_recv_fragment(hdev
, HCI_SCODATA_PKT
,
429 urb
->transfer_buffer
+ offset
,
431 BT_ERR("%s corrupted SCO packet", hdev
->name
);
437 if (!test_bit(BTUSB_ISOC_RUNNING
, &data
->flags
))
440 usb_anchor_urb(urb
, &data
->isoc_anchor
);
442 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
445 BT_ERR("%s urb %p failed to resubmit (%d)",
446 hdev
->name
, urb
, -err
);
447 usb_unanchor_urb(urb
);
451 static inline void __fill_isoc_descriptor(struct urb
*urb
, int len
, int mtu
)
455 BT_DBG("len %d mtu %d", len
, mtu
);
457 for (i
= 0; i
< BTUSB_MAX_ISOC_FRAMES
&& len
>= mtu
;
458 i
++, offset
+= mtu
, len
-= mtu
) {
459 urb
->iso_frame_desc
[i
].offset
= offset
;
460 urb
->iso_frame_desc
[i
].length
= mtu
;
463 if (len
&& i
< BTUSB_MAX_ISOC_FRAMES
) {
464 urb
->iso_frame_desc
[i
].offset
= offset
;
465 urb
->iso_frame_desc
[i
].length
= len
;
469 urb
->number_of_packets
= i
;
472 static int btusb_submit_isoc_urb(struct hci_dev
*hdev
, gfp_t mem_flags
)
474 struct btusb_data
*data
= hdev
->driver_data
;
480 BT_DBG("%s", hdev
->name
);
482 if (!data
->isoc_rx_ep
)
485 urb
= usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES
, mem_flags
);
489 size
= le16_to_cpu(data
->isoc_rx_ep
->wMaxPacketSize
) *
490 BTUSB_MAX_ISOC_FRAMES
;
492 buf
= kmalloc(size
, mem_flags
);
498 pipe
= usb_rcvisocpipe(data
->udev
, data
->isoc_rx_ep
->bEndpointAddress
);
500 urb
->dev
= data
->udev
;
503 urb
->complete
= btusb_isoc_complete
;
504 urb
->interval
= data
->isoc_rx_ep
->bInterval
;
506 urb
->transfer_flags
= URB_FREE_BUFFER
| URB_ISO_ASAP
;
507 urb
->transfer_buffer
= buf
;
508 urb
->transfer_buffer_length
= size
;
510 __fill_isoc_descriptor(urb
, size
,
511 le16_to_cpu(data
->isoc_rx_ep
->wMaxPacketSize
));
513 usb_anchor_urb(urb
, &data
->isoc_anchor
);
515 err
= usb_submit_urb(urb
, mem_flags
);
517 BT_ERR("%s urb %p submission failed (%d)",
518 hdev
->name
, urb
, -err
);
519 usb_unanchor_urb(urb
);
527 static void btusb_tx_complete(struct urb
*urb
)
529 struct sk_buff
*skb
= urb
->context
;
530 struct hci_dev
*hdev
= (struct hci_dev
*) skb
->dev
;
531 struct btusb_data
*data
= hdev
->driver_data
;
533 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
534 urb
, urb
->status
, urb
->actual_length
);
536 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
540 hdev
->stat
.byte_tx
+= urb
->transfer_buffer_length
;
545 spin_lock(&data
->txlock
);
546 data
->tx_in_flight
--;
547 spin_unlock(&data
->txlock
);
549 kfree(urb
->setup_packet
);
554 static void btusb_isoc_tx_complete(struct urb
*urb
)
556 struct sk_buff
*skb
= urb
->context
;
557 struct hci_dev
*hdev
= (struct hci_dev
*) skb
->dev
;
559 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
560 urb
, urb
->status
, urb
->actual_length
);
562 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
566 hdev
->stat
.byte_tx
+= urb
->transfer_buffer_length
;
571 kfree(urb
->setup_packet
);
576 static int btusb_open(struct hci_dev
*hdev
)
578 struct btusb_data
*data
= hdev
->driver_data
;
581 BT_DBG("%s", hdev
->name
);
583 err
= usb_autopm_get_interface(data
->intf
);
587 data
->intf
->needs_remote_wakeup
= 1;
589 if (test_and_set_bit(HCI_RUNNING
, &hdev
->flags
))
592 if (test_and_set_bit(BTUSB_INTR_RUNNING
, &data
->flags
))
595 err
= btusb_submit_intr_urb(hdev
, GFP_KERNEL
);
599 err
= btusb_submit_bulk_urb(hdev
, GFP_KERNEL
);
601 usb_kill_anchored_urbs(&data
->intr_anchor
);
605 set_bit(BTUSB_BULK_RUNNING
, &data
->flags
);
606 btusb_submit_bulk_urb(hdev
, GFP_KERNEL
);
609 usb_autopm_put_interface(data
->intf
);
613 clear_bit(BTUSB_INTR_RUNNING
, &data
->flags
);
614 clear_bit(HCI_RUNNING
, &hdev
->flags
);
615 usb_autopm_put_interface(data
->intf
);
619 static void btusb_stop_traffic(struct btusb_data
*data
)
621 usb_kill_anchored_urbs(&data
->intr_anchor
);
622 usb_kill_anchored_urbs(&data
->bulk_anchor
);
623 usb_kill_anchored_urbs(&data
->isoc_anchor
);
626 static int btusb_close(struct hci_dev
*hdev
)
628 struct btusb_data
*data
= hdev
->driver_data
;
631 BT_DBG("%s", hdev
->name
);
633 if (!test_and_clear_bit(HCI_RUNNING
, &hdev
->flags
))
636 cancel_work_sync(&data
->work
);
637 cancel_work_sync(&data
->waker
);
639 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
640 clear_bit(BTUSB_BULK_RUNNING
, &data
->flags
);
641 clear_bit(BTUSB_INTR_RUNNING
, &data
->flags
);
643 btusb_stop_traffic(data
);
644 err
= usb_autopm_get_interface(data
->intf
);
648 data
->intf
->needs_remote_wakeup
= 0;
649 usb_autopm_put_interface(data
->intf
);
652 usb_scuttle_anchored_urbs(&data
->deferred
);
656 static int btusb_flush(struct hci_dev
*hdev
)
658 struct btusb_data
*data
= hdev
->driver_data
;
660 BT_DBG("%s", hdev
->name
);
662 usb_kill_anchored_urbs(&data
->tx_anchor
);
667 static int btusb_send_frame(struct sk_buff
*skb
)
669 struct hci_dev
*hdev
= (struct hci_dev
*) skb
->dev
;
670 struct btusb_data
*data
= hdev
->driver_data
;
671 struct usb_ctrlrequest
*dr
;
676 BT_DBG("%s", hdev
->name
);
678 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
681 switch (bt_cb(skb
)->pkt_type
) {
682 case HCI_COMMAND_PKT
:
683 urb
= usb_alloc_urb(0, GFP_ATOMIC
);
687 dr
= kmalloc(sizeof(*dr
), GFP_ATOMIC
);
693 dr
->bRequestType
= data
->cmdreq_type
;
697 dr
->wLength
= __cpu_to_le16(skb
->len
);
699 pipe
= usb_sndctrlpipe(data
->udev
, 0x00);
701 usb_fill_control_urb(urb
, data
->udev
, pipe
, (void *) dr
,
702 skb
->data
, skb
->len
, btusb_tx_complete
, skb
);
707 case HCI_ACLDATA_PKT
:
708 if (!data
->bulk_tx_ep
|| (hdev
->conn_hash
.acl_num
< 1 &&
709 hdev
->conn_hash
.le_num
< 1))
712 urb
= usb_alloc_urb(0, GFP_ATOMIC
);
716 pipe
= usb_sndbulkpipe(data
->udev
,
717 data
->bulk_tx_ep
->bEndpointAddress
);
719 usb_fill_bulk_urb(urb
, data
->udev
, pipe
,
720 skb
->data
, skb
->len
, btusb_tx_complete
, skb
);
725 case HCI_SCODATA_PKT
:
726 if (!data
->isoc_tx_ep
|| hdev
->conn_hash
.sco_num
< 1)
729 urb
= usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES
, GFP_ATOMIC
);
733 pipe
= usb_sndisocpipe(data
->udev
,
734 data
->isoc_tx_ep
->bEndpointAddress
);
736 usb_fill_int_urb(urb
, data
->udev
, pipe
,
737 skb
->data
, skb
->len
, btusb_isoc_tx_complete
,
738 skb
, data
->isoc_tx_ep
->bInterval
);
740 urb
->transfer_flags
= URB_ISO_ASAP
;
742 __fill_isoc_descriptor(urb
, skb
->len
,
743 le16_to_cpu(data
->isoc_tx_ep
->wMaxPacketSize
));
754 usb_anchor_urb(urb
, &data
->deferred
);
755 schedule_work(&data
->waker
);
761 usb_anchor_urb(urb
, &data
->tx_anchor
);
763 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
765 BT_ERR("%s urb %p submission failed", hdev
->name
, urb
);
766 kfree(urb
->setup_packet
);
767 usb_unanchor_urb(urb
);
769 usb_mark_last_busy(data
->udev
);
778 static void btusb_destruct(struct hci_dev
*hdev
)
780 struct btusb_data
*data
= hdev
->driver_data
;
782 BT_DBG("%s", hdev
->name
);
787 static void btusb_notify(struct hci_dev
*hdev
, unsigned int evt
)
789 struct btusb_data
*data
= hdev
->driver_data
;
791 BT_DBG("%s evt %d", hdev
->name
, evt
);
793 if (hdev
->conn_hash
.sco_num
!= data
->sco_num
) {
794 data
->sco_num
= hdev
->conn_hash
.sco_num
;
795 schedule_work(&data
->work
);
799 static inline int __set_isoc_interface(struct hci_dev
*hdev
, int altsetting
)
801 struct btusb_data
*data
= hdev
->driver_data
;
802 struct usb_interface
*intf
= data
->isoc
;
803 struct usb_endpoint_descriptor
*ep_desc
;
809 err
= usb_set_interface(data
->udev
, 1, altsetting
);
811 BT_ERR("%s setting interface failed (%d)", hdev
->name
, -err
);
815 data
->isoc_altsetting
= altsetting
;
817 data
->isoc_tx_ep
= NULL
;
818 data
->isoc_rx_ep
= NULL
;
820 for (i
= 0; i
< intf
->cur_altsetting
->desc
.bNumEndpoints
; i
++) {
821 ep_desc
= &intf
->cur_altsetting
->endpoint
[i
].desc
;
823 if (!data
->isoc_tx_ep
&& usb_endpoint_is_isoc_out(ep_desc
)) {
824 data
->isoc_tx_ep
= ep_desc
;
828 if (!data
->isoc_rx_ep
&& usb_endpoint_is_isoc_in(ep_desc
)) {
829 data
->isoc_rx_ep
= ep_desc
;
834 if (!data
->isoc_tx_ep
|| !data
->isoc_rx_ep
) {
835 BT_ERR("%s invalid SCO descriptors", hdev
->name
);
842 static void btusb_work(struct work_struct
*work
)
844 struct btusb_data
*data
= container_of(work
, struct btusb_data
, work
);
845 struct hci_dev
*hdev
= data
->hdev
;
848 if (hdev
->conn_hash
.sco_num
> 0) {
849 if (!test_bit(BTUSB_DID_ISO_RESUME
, &data
->flags
)) {
850 err
= usb_autopm_get_interface(data
->isoc
? data
->isoc
: data
->intf
);
852 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
853 usb_kill_anchored_urbs(&data
->isoc_anchor
);
857 set_bit(BTUSB_DID_ISO_RESUME
, &data
->flags
);
859 if (data
->isoc_altsetting
!= 2) {
860 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
861 usb_kill_anchored_urbs(&data
->isoc_anchor
);
863 if (__set_isoc_interface(hdev
, 2) < 0)
867 if (!test_and_set_bit(BTUSB_ISOC_RUNNING
, &data
->flags
)) {
868 if (btusb_submit_isoc_urb(hdev
, GFP_KERNEL
) < 0)
869 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
871 btusb_submit_isoc_urb(hdev
, GFP_KERNEL
);
874 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
875 usb_kill_anchored_urbs(&data
->isoc_anchor
);
877 __set_isoc_interface(hdev
, 0);
878 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME
, &data
->flags
))
879 usb_autopm_put_interface(data
->isoc
? data
->isoc
: data
->intf
);
883 static void btusb_waker(struct work_struct
*work
)
885 struct btusb_data
*data
= container_of(work
, struct btusb_data
, waker
);
888 err
= usb_autopm_get_interface(data
->intf
);
892 usb_autopm_put_interface(data
->intf
);
895 static int btusb_probe(struct usb_interface
*intf
,
896 const struct usb_device_id
*id
)
898 struct usb_endpoint_descriptor
*ep_desc
;
899 struct btusb_data
*data
;
900 struct hci_dev
*hdev
;
903 BT_DBG("intf %p id %p", intf
, id
);
905 /* interface numbers are hardcoded in the spec */
906 if (intf
->cur_altsetting
->desc
.bInterfaceNumber
!= 0)
909 if (!id
->driver_info
) {
910 const struct usb_device_id
*match
;
911 match
= usb_match_id(intf
, blacklist_table
);
916 if (id
->driver_info
== BTUSB_IGNORE
)
919 if (ignore_dga
&& id
->driver_info
& BTUSB_DIGIANSWER
)
922 if (ignore_csr
&& id
->driver_info
& BTUSB_CSR
)
925 if (ignore_sniffer
&& id
->driver_info
& BTUSB_SNIFFER
)
928 if (id
->driver_info
& BTUSB_ATH3012
) {
929 struct usb_device
*udev
= interface_to_usbdev(intf
);
931 /* Old firmware would otherwise let ath3k driver load
932 * patch and sysconfig files */
933 if (le16_to_cpu(udev
->descriptor
.bcdDevice
) <= 0x0001)
937 data
= kzalloc(sizeof(*data
), GFP_KERNEL
);
941 for (i
= 0; i
< intf
->cur_altsetting
->desc
.bNumEndpoints
; i
++) {
942 ep_desc
= &intf
->cur_altsetting
->endpoint
[i
].desc
;
944 if (!data
->intr_ep
&& usb_endpoint_is_int_in(ep_desc
)) {
945 data
->intr_ep
= ep_desc
;
949 if (!data
->bulk_tx_ep
&& usb_endpoint_is_bulk_out(ep_desc
)) {
950 data
->bulk_tx_ep
= ep_desc
;
954 if (!data
->bulk_rx_ep
&& usb_endpoint_is_bulk_in(ep_desc
)) {
955 data
->bulk_rx_ep
= ep_desc
;
960 if (!data
->intr_ep
|| !data
->bulk_tx_ep
|| !data
->bulk_rx_ep
) {
965 data
->cmdreq_type
= USB_TYPE_CLASS
;
967 data
->udev
= interface_to_usbdev(intf
);
970 spin_lock_init(&data
->lock
);
972 INIT_WORK(&data
->work
, btusb_work
);
973 INIT_WORK(&data
->waker
, btusb_waker
);
974 spin_lock_init(&data
->txlock
);
976 init_usb_anchor(&data
->tx_anchor
);
977 init_usb_anchor(&data
->intr_anchor
);
978 init_usb_anchor(&data
->bulk_anchor
);
979 init_usb_anchor(&data
->isoc_anchor
);
980 init_usb_anchor(&data
->deferred
);
982 hdev
= hci_alloc_dev();
989 hdev
->driver_data
= data
;
993 SET_HCIDEV_DEV(hdev
, &intf
->dev
);
995 hdev
->open
= btusb_open
;
996 hdev
->close
= btusb_close
;
997 hdev
->flush
= btusb_flush
;
998 hdev
->send
= btusb_send_frame
;
999 hdev
->destruct
= btusb_destruct
;
1000 hdev
->notify
= btusb_notify
;
1002 hdev
->owner
= THIS_MODULE
;
1004 /* Interface numbers are hardcoded in the specification */
1005 data
->isoc
= usb_ifnum_to_if(data
->udev
, 1);
1008 set_bit(HCI_QUIRK_NO_RESET
, &hdev
->quirks
);
1010 if (force_scofix
|| id
->driver_info
& BTUSB_WRONG_SCO_MTU
) {
1011 if (!disable_scofix
)
1012 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE
, &hdev
->quirks
);
1015 if (id
->driver_info
& BTUSB_BROKEN_ISOC
)
1018 if (id
->driver_info
& BTUSB_DIGIANSWER
) {
1019 data
->cmdreq_type
= USB_TYPE_VENDOR
;
1020 set_bit(HCI_QUIRK_NO_RESET
, &hdev
->quirks
);
1023 if (id
->driver_info
& BTUSB_CSR
) {
1024 struct usb_device
*udev
= data
->udev
;
1026 /* Old firmware would otherwise execute USB reset */
1027 if (le16_to_cpu(udev
->descriptor
.bcdDevice
) < 0x117)
1028 set_bit(HCI_QUIRK_NO_RESET
, &hdev
->quirks
);
1031 if (id
->driver_info
& BTUSB_SNIFFER
) {
1032 struct usb_device
*udev
= data
->udev
;
1034 /* New sniffer firmware has crippled HCI interface */
1035 if (le16_to_cpu(udev
->descriptor
.bcdDevice
) > 0x997)
1036 set_bit(HCI_QUIRK_RAW_DEVICE
, &hdev
->quirks
);
1041 if (id
->driver_info
& BTUSB_BCM92035
) {
1042 unsigned char cmd
[] = { 0x3b, 0xfc, 0x01, 0x00 };
1043 struct sk_buff
*skb
;
1045 skb
= bt_skb_alloc(sizeof(cmd
), GFP_KERNEL
);
1047 memcpy(skb_put(skb
, sizeof(cmd
)), cmd
, sizeof(cmd
));
1048 skb_queue_tail(&hdev
->driver_init
, skb
);
1053 err
= usb_driver_claim_interface(&btusb_driver
,
1062 err
= hci_register_dev(hdev
);
1069 usb_set_intfdata(intf
, data
);
1074 static void btusb_disconnect(struct usb_interface
*intf
)
1076 struct btusb_data
*data
= usb_get_intfdata(intf
);
1077 struct hci_dev
*hdev
;
1079 BT_DBG("intf %p", intf
);
1086 __hci_dev_hold(hdev
);
1088 usb_set_intfdata(data
->intf
, NULL
);
1091 usb_set_intfdata(data
->isoc
, NULL
);
1093 hci_unregister_dev(hdev
);
1095 if (intf
== data
->isoc
)
1096 usb_driver_release_interface(&btusb_driver
, data
->intf
);
1097 else if (data
->isoc
)
1098 usb_driver_release_interface(&btusb_driver
, data
->isoc
);
1100 __hci_dev_put(hdev
);
1106 static int btusb_suspend(struct usb_interface
*intf
, pm_message_t message
)
1108 struct btusb_data
*data
= usb_get_intfdata(intf
);
1110 BT_DBG("intf %p", intf
);
1112 if (data
->suspend_count
++)
1115 spin_lock_irq(&data
->txlock
);
1116 if (!((message
.event
& PM_EVENT_AUTO
) && data
->tx_in_flight
)) {
1117 set_bit(BTUSB_SUSPENDING
, &data
->flags
);
1118 spin_unlock_irq(&data
->txlock
);
1120 spin_unlock_irq(&data
->txlock
);
1121 data
->suspend_count
--;
1125 cancel_work_sync(&data
->work
);
1127 btusb_stop_traffic(data
);
1128 usb_kill_anchored_urbs(&data
->tx_anchor
);
1133 static void play_deferred(struct btusb_data
*data
)
1138 while ((urb
= usb_get_from_anchor(&data
->deferred
))) {
1139 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
1143 data
->tx_in_flight
++;
1145 usb_scuttle_anchored_urbs(&data
->deferred
);
1148 static int btusb_resume(struct usb_interface
*intf
)
1150 struct btusb_data
*data
= usb_get_intfdata(intf
);
1151 struct hci_dev
*hdev
= data
->hdev
;
1154 BT_DBG("intf %p", intf
);
1156 if (--data
->suspend_count
)
1159 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
1162 if (test_bit(BTUSB_INTR_RUNNING
, &data
->flags
)) {
1163 err
= btusb_submit_intr_urb(hdev
, GFP_NOIO
);
1165 clear_bit(BTUSB_INTR_RUNNING
, &data
->flags
);
1170 if (test_bit(BTUSB_BULK_RUNNING
, &data
->flags
)) {
1171 err
= btusb_submit_bulk_urb(hdev
, GFP_NOIO
);
1173 clear_bit(BTUSB_BULK_RUNNING
, &data
->flags
);
1177 btusb_submit_bulk_urb(hdev
, GFP_NOIO
);
1180 if (test_bit(BTUSB_ISOC_RUNNING
, &data
->flags
)) {
1181 if (btusb_submit_isoc_urb(hdev
, GFP_NOIO
) < 0)
1182 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
1184 btusb_submit_isoc_urb(hdev
, GFP_NOIO
);
1187 spin_lock_irq(&data
->txlock
);
1188 play_deferred(data
);
1189 clear_bit(BTUSB_SUSPENDING
, &data
->flags
);
1190 spin_unlock_irq(&data
->txlock
);
1191 schedule_work(&data
->work
);
1196 usb_scuttle_anchored_urbs(&data
->deferred
);
1198 spin_lock_irq(&data
->txlock
);
1199 clear_bit(BTUSB_SUSPENDING
, &data
->flags
);
1200 spin_unlock_irq(&data
->txlock
);
1206 static struct usb_driver btusb_driver
= {
1208 .probe
= btusb_probe
,
1209 .disconnect
= btusb_disconnect
,
1211 .suspend
= btusb_suspend
,
1212 .resume
= btusb_resume
,
1214 .id_table
= btusb_table
,
1215 .supports_autosuspend
= 1,
1218 static int __init
btusb_init(void)
1220 BT_INFO("Generic Bluetooth USB driver ver %s", VERSION
);
1222 return usb_register(&btusb_driver
);
1225 static void __exit
btusb_exit(void)
1227 usb_deregister(&btusb_driver
);
1230 module_init(btusb_init
);
1231 module_exit(btusb_exit
);
1233 module_param(ignore_dga
, bool, 0644);
1234 MODULE_PARM_DESC(ignore_dga
, "Ignore devices with id 08fd:0001");
1236 module_param(ignore_csr
, bool, 0644);
1237 MODULE_PARM_DESC(ignore_csr
, "Ignore devices with id 0a12:0001");
1239 module_param(ignore_sniffer
, bool, 0644);
1240 MODULE_PARM_DESC(ignore_sniffer
, "Ignore devices with id 0a12:0002");
1242 module_param(disable_scofix
, bool, 0644);
1243 MODULE_PARM_DESC(disable_scofix
, "Disable fixup of wrong SCO buffer size");
1245 module_param(force_scofix
, bool, 0644);
1246 MODULE_PARM_DESC(force_scofix
, "Force fixup of wrong SCO buffers size");
1248 module_param(reset
, bool, 0644);
1249 MODULE_PARM_DESC(reset
, "Send HCI reset command on initialization");
1251 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1252 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION
);
1253 MODULE_VERSION(VERSION
);
1254 MODULE_LICENSE("GPL");