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 bool ignore_dga
;
41 static bool ignore_csr
;
42 static bool ignore_sniffer
;
43 static bool disable_scofix
;
44 static bool force_scofix
;
46 static bool reset
= 1;
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(0x0a5c, 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 /* Broadcom BCM20702A0 */
104 { USB_DEVICE(0x0a5c, 0x21e3) },
105 { USB_DEVICE(0x0a5c, 0x21e6) },
106 { USB_DEVICE(0x0a5c, 0x21e8) },
107 { USB_DEVICE(0x0a5c, 0x21f3) },
108 { USB_DEVICE(0x413c, 0x8197) },
110 { } /* Terminating entry */
113 MODULE_DEVICE_TABLE(usb
, btusb_table
);
115 static struct usb_device_id blacklist_table
[] = {
116 /* CSR BlueCore devices */
117 { USB_DEVICE(0x0a12, 0x0001), .driver_info
= BTUSB_CSR
},
119 /* Broadcom BCM2033 without firmware */
120 { USB_DEVICE(0x0a5c, 0x2033), .driver_info
= BTUSB_IGNORE
},
122 /* Atheros 3011 with sflash firmware */
123 { USB_DEVICE(0x0cf3, 0x3002), .driver_info
= BTUSB_IGNORE
},
124 { USB_DEVICE(0x13d3, 0x3304), .driver_info
= BTUSB_IGNORE
},
125 { USB_DEVICE(0x0930, 0x0215), .driver_info
= BTUSB_IGNORE
},
126 { USB_DEVICE(0x0489, 0xe03d), .driver_info
= BTUSB_IGNORE
},
128 /* Atheros AR9285 Malbec with sflash firmware */
129 { USB_DEVICE(0x03f0, 0x311d), .driver_info
= BTUSB_IGNORE
},
131 /* Atheros 3012 with sflash firmware */
132 { USB_DEVICE(0x0cf3, 0x3004), .driver_info
= BTUSB_ATH3012
},
133 { USB_DEVICE(0x0cf3, 0x311d), .driver_info
= BTUSB_ATH3012
},
134 { USB_DEVICE(0x13d3, 0x3375), .driver_info
= BTUSB_ATH3012
},
135 { USB_DEVICE(0x04ca, 0x3005), .driver_info
= BTUSB_ATH3012
},
137 /* Atheros AR5BBU12 with sflash firmware */
138 { USB_DEVICE(0x0489, 0xe02c), .driver_info
= BTUSB_IGNORE
},
140 /* Broadcom BCM2035 */
141 { USB_DEVICE(0x0a5c, 0x2035), .driver_info
= BTUSB_WRONG_SCO_MTU
},
142 { USB_DEVICE(0x0a5c, 0x200a), .driver_info
= BTUSB_WRONG_SCO_MTU
},
143 { USB_DEVICE(0x0a5c, 0x2009), .driver_info
= BTUSB_BCM92035
},
145 /* Broadcom BCM2045 */
146 { USB_DEVICE(0x0a5c, 0x2039), .driver_info
= BTUSB_WRONG_SCO_MTU
},
147 { USB_DEVICE(0x0a5c, 0x2101), .driver_info
= BTUSB_WRONG_SCO_MTU
},
149 /* IBM/Lenovo ThinkPad with Broadcom chip */
150 { USB_DEVICE(0x0a5c, 0x201e), .driver_info
= BTUSB_WRONG_SCO_MTU
},
151 { USB_DEVICE(0x0a5c, 0x2110), .driver_info
= BTUSB_WRONG_SCO_MTU
},
153 /* HP laptop with Broadcom chip */
154 { USB_DEVICE(0x03f0, 0x171d), .driver_info
= BTUSB_WRONG_SCO_MTU
},
156 /* Dell laptop with Broadcom chip */
157 { USB_DEVICE(0x413c, 0x8126), .driver_info
= BTUSB_WRONG_SCO_MTU
},
159 /* Dell Wireless 370 and 410 devices */
160 { USB_DEVICE(0x413c, 0x8152), .driver_info
= BTUSB_WRONG_SCO_MTU
},
161 { USB_DEVICE(0x413c, 0x8156), .driver_info
= BTUSB_WRONG_SCO_MTU
},
163 /* Belkin F8T012 and F8T013 devices */
164 { USB_DEVICE(0x050d, 0x0012), .driver_info
= BTUSB_WRONG_SCO_MTU
},
165 { USB_DEVICE(0x050d, 0x0013), .driver_info
= BTUSB_WRONG_SCO_MTU
},
167 /* Asus WL-BTD202 device */
168 { USB_DEVICE(0x0b05, 0x1715), .driver_info
= BTUSB_WRONG_SCO_MTU
},
170 /* Kensington Bluetooth USB adapter */
171 { USB_DEVICE(0x047d, 0x105e), .driver_info
= BTUSB_WRONG_SCO_MTU
},
173 /* RTX Telecom based adapters with buggy SCO support */
174 { USB_DEVICE(0x0400, 0x0807), .driver_info
= BTUSB_BROKEN_ISOC
},
175 { USB_DEVICE(0x0400, 0x080a), .driver_info
= BTUSB_BROKEN_ISOC
},
177 /* CONWISE Technology based adapters with buggy SCO support */
178 { USB_DEVICE(0x0e5e, 0x6622), .driver_info
= BTUSB_BROKEN_ISOC
},
180 /* Digianswer devices */
181 { USB_DEVICE(0x08fd, 0x0001), .driver_info
= BTUSB_DIGIANSWER
},
182 { USB_DEVICE(0x08fd, 0x0002), .driver_info
= BTUSB_IGNORE
},
184 /* CSR BlueCore Bluetooth Sniffer */
185 { USB_DEVICE(0x0a12, 0x0002), .driver_info
= BTUSB_SNIFFER
},
187 /* Frontline ComProbe Bluetooth Sniffer */
188 { USB_DEVICE(0x16d3, 0x0002), .driver_info
= BTUSB_SNIFFER
},
190 { } /* Terminating entry */
193 #define BTUSB_MAX_ISOC_FRAMES 10
195 #define BTUSB_INTR_RUNNING 0
196 #define BTUSB_BULK_RUNNING 1
197 #define BTUSB_ISOC_RUNNING 2
198 #define BTUSB_SUSPENDING 3
199 #define BTUSB_DID_ISO_RESUME 4
202 struct hci_dev
*hdev
;
203 struct usb_device
*udev
;
204 struct usb_interface
*intf
;
205 struct usb_interface
*isoc
;
211 struct work_struct work
;
212 struct work_struct waker
;
214 struct usb_anchor tx_anchor
;
215 struct usb_anchor intr_anchor
;
216 struct usb_anchor bulk_anchor
;
217 struct usb_anchor isoc_anchor
;
218 struct usb_anchor deferred
;
222 struct usb_endpoint_descriptor
*intr_ep
;
223 struct usb_endpoint_descriptor
*bulk_tx_ep
;
224 struct usb_endpoint_descriptor
*bulk_rx_ep
;
225 struct usb_endpoint_descriptor
*isoc_tx_ep
;
226 struct usb_endpoint_descriptor
*isoc_rx_ep
;
230 unsigned int sco_num
;
235 static int inc_tx(struct btusb_data
*data
)
240 spin_lock_irqsave(&data
->txlock
, flags
);
241 rv
= test_bit(BTUSB_SUSPENDING
, &data
->flags
);
243 data
->tx_in_flight
++;
244 spin_unlock_irqrestore(&data
->txlock
, flags
);
249 static void btusb_intr_complete(struct urb
*urb
)
251 struct hci_dev
*hdev
= urb
->context
;
252 struct btusb_data
*data
= hci_get_drvdata(hdev
);
255 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
256 urb
, urb
->status
, urb
->actual_length
);
258 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
261 if (urb
->status
== 0) {
262 hdev
->stat
.byte_rx
+= urb
->actual_length
;
264 if (hci_recv_fragment(hdev
, HCI_EVENT_PKT
,
265 urb
->transfer_buffer
,
266 urb
->actual_length
) < 0) {
267 BT_ERR("%s corrupted event packet", hdev
->name
);
272 if (!test_bit(BTUSB_INTR_RUNNING
, &data
->flags
))
275 usb_mark_last_busy(data
->udev
);
276 usb_anchor_urb(urb
, &data
->intr_anchor
);
278 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
280 /* -EPERM: urb is being killed;
281 * -ENODEV: device got disconnected */
282 if (err
!= -EPERM
&& err
!= -ENODEV
)
283 BT_ERR("%s urb %p failed to resubmit (%d)",
284 hdev
->name
, urb
, -err
);
285 usb_unanchor_urb(urb
);
289 static int btusb_submit_intr_urb(struct hci_dev
*hdev
, gfp_t mem_flags
)
291 struct btusb_data
*data
= hci_get_drvdata(hdev
);
297 BT_DBG("%s", hdev
->name
);
302 urb
= usb_alloc_urb(0, mem_flags
);
306 size
= le16_to_cpu(data
->intr_ep
->wMaxPacketSize
);
308 buf
= kmalloc(size
, mem_flags
);
314 pipe
= usb_rcvintpipe(data
->udev
, data
->intr_ep
->bEndpointAddress
);
316 usb_fill_int_urb(urb
, data
->udev
, pipe
, buf
, size
,
317 btusb_intr_complete
, hdev
,
318 data
->intr_ep
->bInterval
);
320 urb
->transfer_flags
|= URB_FREE_BUFFER
;
322 usb_anchor_urb(urb
, &data
->intr_anchor
);
324 err
= usb_submit_urb(urb
, mem_flags
);
326 if (err
!= -EPERM
&& err
!= -ENODEV
)
327 BT_ERR("%s urb %p submission failed (%d)",
328 hdev
->name
, urb
, -err
);
329 usb_unanchor_urb(urb
);
337 static void btusb_bulk_complete(struct urb
*urb
)
339 struct hci_dev
*hdev
= urb
->context
;
340 struct btusb_data
*data
= hci_get_drvdata(hdev
);
343 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
344 urb
, urb
->status
, urb
->actual_length
);
346 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
349 if (urb
->status
== 0) {
350 hdev
->stat
.byte_rx
+= urb
->actual_length
;
352 if (hci_recv_fragment(hdev
, HCI_ACLDATA_PKT
,
353 urb
->transfer_buffer
,
354 urb
->actual_length
) < 0) {
355 BT_ERR("%s corrupted ACL packet", hdev
->name
);
360 if (!test_bit(BTUSB_BULK_RUNNING
, &data
->flags
))
363 usb_anchor_urb(urb
, &data
->bulk_anchor
);
364 usb_mark_last_busy(data
->udev
);
366 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
368 /* -EPERM: urb is being killed;
369 * -ENODEV: device got disconnected */
370 if (err
!= -EPERM
&& err
!= -ENODEV
)
371 BT_ERR("%s urb %p failed to resubmit (%d)",
372 hdev
->name
, urb
, -err
);
373 usb_unanchor_urb(urb
);
377 static int btusb_submit_bulk_urb(struct hci_dev
*hdev
, gfp_t mem_flags
)
379 struct btusb_data
*data
= hci_get_drvdata(hdev
);
383 int err
, size
= HCI_MAX_FRAME_SIZE
;
385 BT_DBG("%s", hdev
->name
);
387 if (!data
->bulk_rx_ep
)
390 urb
= usb_alloc_urb(0, mem_flags
);
394 buf
= kmalloc(size
, mem_flags
);
400 pipe
= usb_rcvbulkpipe(data
->udev
, data
->bulk_rx_ep
->bEndpointAddress
);
402 usb_fill_bulk_urb(urb
, data
->udev
, pipe
,
403 buf
, size
, btusb_bulk_complete
, hdev
);
405 urb
->transfer_flags
|= URB_FREE_BUFFER
;
407 usb_mark_last_busy(data
->udev
);
408 usb_anchor_urb(urb
, &data
->bulk_anchor
);
410 err
= usb_submit_urb(urb
, mem_flags
);
412 if (err
!= -EPERM
&& err
!= -ENODEV
)
413 BT_ERR("%s urb %p submission failed (%d)",
414 hdev
->name
, urb
, -err
);
415 usb_unanchor_urb(urb
);
423 static void btusb_isoc_complete(struct urb
*urb
)
425 struct hci_dev
*hdev
= urb
->context
;
426 struct btusb_data
*data
= hci_get_drvdata(hdev
);
429 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
430 urb
, urb
->status
, urb
->actual_length
);
432 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
435 if (urb
->status
== 0) {
436 for (i
= 0; i
< urb
->number_of_packets
; i
++) {
437 unsigned int offset
= urb
->iso_frame_desc
[i
].offset
;
438 unsigned int length
= urb
->iso_frame_desc
[i
].actual_length
;
440 if (urb
->iso_frame_desc
[i
].status
)
443 hdev
->stat
.byte_rx
+= length
;
445 if (hci_recv_fragment(hdev
, HCI_SCODATA_PKT
,
446 urb
->transfer_buffer
+ offset
,
448 BT_ERR("%s corrupted SCO packet", hdev
->name
);
454 if (!test_bit(BTUSB_ISOC_RUNNING
, &data
->flags
))
457 usb_anchor_urb(urb
, &data
->isoc_anchor
);
459 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
461 /* -EPERM: urb is being killed;
462 * -ENODEV: device got disconnected */
463 if (err
!= -EPERM
&& err
!= -ENODEV
)
464 BT_ERR("%s urb %p failed to resubmit (%d)",
465 hdev
->name
, urb
, -err
);
466 usb_unanchor_urb(urb
);
470 static inline void __fill_isoc_descriptor(struct urb
*urb
, int len
, int mtu
)
474 BT_DBG("len %d mtu %d", len
, mtu
);
476 for (i
= 0; i
< BTUSB_MAX_ISOC_FRAMES
&& len
>= mtu
;
477 i
++, offset
+= mtu
, len
-= mtu
) {
478 urb
->iso_frame_desc
[i
].offset
= offset
;
479 urb
->iso_frame_desc
[i
].length
= mtu
;
482 if (len
&& i
< BTUSB_MAX_ISOC_FRAMES
) {
483 urb
->iso_frame_desc
[i
].offset
= offset
;
484 urb
->iso_frame_desc
[i
].length
= len
;
488 urb
->number_of_packets
= i
;
491 static int btusb_submit_isoc_urb(struct hci_dev
*hdev
, gfp_t mem_flags
)
493 struct btusb_data
*data
= hci_get_drvdata(hdev
);
499 BT_DBG("%s", hdev
->name
);
501 if (!data
->isoc_rx_ep
)
504 urb
= usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES
, mem_flags
);
508 size
= le16_to_cpu(data
->isoc_rx_ep
->wMaxPacketSize
) *
509 BTUSB_MAX_ISOC_FRAMES
;
511 buf
= kmalloc(size
, mem_flags
);
517 pipe
= usb_rcvisocpipe(data
->udev
, data
->isoc_rx_ep
->bEndpointAddress
);
519 usb_fill_int_urb(urb
, data
->udev
, pipe
, buf
, size
, btusb_isoc_complete
,
520 hdev
, data
->isoc_rx_ep
->bInterval
);
522 urb
->transfer_flags
= URB_FREE_BUFFER
| URB_ISO_ASAP
;
524 __fill_isoc_descriptor(urb
, size
,
525 le16_to_cpu(data
->isoc_rx_ep
->wMaxPacketSize
));
527 usb_anchor_urb(urb
, &data
->isoc_anchor
);
529 err
= usb_submit_urb(urb
, mem_flags
);
531 if (err
!= -EPERM
&& err
!= -ENODEV
)
532 BT_ERR("%s urb %p submission failed (%d)",
533 hdev
->name
, urb
, -err
);
534 usb_unanchor_urb(urb
);
542 static void btusb_tx_complete(struct urb
*urb
)
544 struct sk_buff
*skb
= urb
->context
;
545 struct hci_dev
*hdev
= (struct hci_dev
*) skb
->dev
;
546 struct btusb_data
*data
= hci_get_drvdata(hdev
);
548 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
549 urb
, urb
->status
, urb
->actual_length
);
551 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
555 hdev
->stat
.byte_tx
+= urb
->transfer_buffer_length
;
560 spin_lock(&data
->txlock
);
561 data
->tx_in_flight
--;
562 spin_unlock(&data
->txlock
);
564 kfree(urb
->setup_packet
);
569 static void btusb_isoc_tx_complete(struct urb
*urb
)
571 struct sk_buff
*skb
= urb
->context
;
572 struct hci_dev
*hdev
= (struct hci_dev
*) skb
->dev
;
574 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
575 urb
, urb
->status
, urb
->actual_length
);
577 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
581 hdev
->stat
.byte_tx
+= urb
->transfer_buffer_length
;
586 kfree(urb
->setup_packet
);
591 static int btusb_open(struct hci_dev
*hdev
)
593 struct btusb_data
*data
= hci_get_drvdata(hdev
);
596 BT_DBG("%s", hdev
->name
);
598 err
= usb_autopm_get_interface(data
->intf
);
602 data
->intf
->needs_remote_wakeup
= 1;
604 if (test_and_set_bit(HCI_RUNNING
, &hdev
->flags
))
607 if (test_and_set_bit(BTUSB_INTR_RUNNING
, &data
->flags
))
610 err
= btusb_submit_intr_urb(hdev
, GFP_KERNEL
);
614 err
= btusb_submit_bulk_urb(hdev
, GFP_KERNEL
);
616 usb_kill_anchored_urbs(&data
->intr_anchor
);
620 set_bit(BTUSB_BULK_RUNNING
, &data
->flags
);
621 btusb_submit_bulk_urb(hdev
, GFP_KERNEL
);
624 usb_autopm_put_interface(data
->intf
);
628 clear_bit(BTUSB_INTR_RUNNING
, &data
->flags
);
629 clear_bit(HCI_RUNNING
, &hdev
->flags
);
630 usb_autopm_put_interface(data
->intf
);
634 static void btusb_stop_traffic(struct btusb_data
*data
)
636 usb_kill_anchored_urbs(&data
->intr_anchor
);
637 usb_kill_anchored_urbs(&data
->bulk_anchor
);
638 usb_kill_anchored_urbs(&data
->isoc_anchor
);
641 static int btusb_close(struct hci_dev
*hdev
)
643 struct btusb_data
*data
= hci_get_drvdata(hdev
);
646 BT_DBG("%s", hdev
->name
);
648 if (!test_and_clear_bit(HCI_RUNNING
, &hdev
->flags
))
651 cancel_work_sync(&data
->work
);
652 cancel_work_sync(&data
->waker
);
654 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
655 clear_bit(BTUSB_BULK_RUNNING
, &data
->flags
);
656 clear_bit(BTUSB_INTR_RUNNING
, &data
->flags
);
658 btusb_stop_traffic(data
);
659 err
= usb_autopm_get_interface(data
->intf
);
663 data
->intf
->needs_remote_wakeup
= 0;
664 usb_autopm_put_interface(data
->intf
);
667 usb_scuttle_anchored_urbs(&data
->deferred
);
671 static int btusb_flush(struct hci_dev
*hdev
)
673 struct btusb_data
*data
= hci_get_drvdata(hdev
);
675 BT_DBG("%s", hdev
->name
);
677 usb_kill_anchored_urbs(&data
->tx_anchor
);
682 static int btusb_send_frame(struct sk_buff
*skb
)
684 struct hci_dev
*hdev
= (struct hci_dev
*) skb
->dev
;
685 struct btusb_data
*data
= hci_get_drvdata(hdev
);
686 struct usb_ctrlrequest
*dr
;
691 BT_DBG("%s", hdev
->name
);
693 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
696 switch (bt_cb(skb
)->pkt_type
) {
697 case HCI_COMMAND_PKT
:
698 urb
= usb_alloc_urb(0, GFP_ATOMIC
);
702 dr
= kmalloc(sizeof(*dr
), GFP_ATOMIC
);
708 dr
->bRequestType
= data
->cmdreq_type
;
712 dr
->wLength
= __cpu_to_le16(skb
->len
);
714 pipe
= usb_sndctrlpipe(data
->udev
, 0x00);
716 usb_fill_control_urb(urb
, data
->udev
, pipe
, (void *) dr
,
717 skb
->data
, skb
->len
, btusb_tx_complete
, skb
);
722 case HCI_ACLDATA_PKT
:
723 if (!data
->bulk_tx_ep
)
726 urb
= usb_alloc_urb(0, GFP_ATOMIC
);
730 pipe
= usb_sndbulkpipe(data
->udev
,
731 data
->bulk_tx_ep
->bEndpointAddress
);
733 usb_fill_bulk_urb(urb
, data
->udev
, pipe
,
734 skb
->data
, skb
->len
, btusb_tx_complete
, skb
);
739 case HCI_SCODATA_PKT
:
740 if (!data
->isoc_tx_ep
|| hdev
->conn_hash
.sco_num
< 1)
743 urb
= usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES
, GFP_ATOMIC
);
747 pipe
= usb_sndisocpipe(data
->udev
,
748 data
->isoc_tx_ep
->bEndpointAddress
);
750 usb_fill_int_urb(urb
, data
->udev
, pipe
,
751 skb
->data
, skb
->len
, btusb_isoc_tx_complete
,
752 skb
, data
->isoc_tx_ep
->bInterval
);
754 urb
->transfer_flags
= URB_ISO_ASAP
;
756 __fill_isoc_descriptor(urb
, skb
->len
,
757 le16_to_cpu(data
->isoc_tx_ep
->wMaxPacketSize
));
768 usb_anchor_urb(urb
, &data
->deferred
);
769 schedule_work(&data
->waker
);
775 usb_anchor_urb(urb
, &data
->tx_anchor
);
777 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
779 if (err
!= -EPERM
&& err
!= -ENODEV
)
780 BT_ERR("%s urb %p submission failed (%d)",
781 hdev
->name
, urb
, -err
);
782 kfree(urb
->setup_packet
);
783 usb_unanchor_urb(urb
);
785 usb_mark_last_busy(data
->udev
);
793 static void btusb_notify(struct hci_dev
*hdev
, unsigned int evt
)
795 struct btusb_data
*data
= hci_get_drvdata(hdev
);
797 BT_DBG("%s evt %d", hdev
->name
, evt
);
799 if (hdev
->conn_hash
.sco_num
!= data
->sco_num
) {
800 data
->sco_num
= hdev
->conn_hash
.sco_num
;
801 schedule_work(&data
->work
);
805 static inline int __set_isoc_interface(struct hci_dev
*hdev
, int altsetting
)
807 struct btusb_data
*data
= hci_get_drvdata(hdev
);
808 struct usb_interface
*intf
= data
->isoc
;
809 struct usb_endpoint_descriptor
*ep_desc
;
815 err
= usb_set_interface(data
->udev
, 1, altsetting
);
817 BT_ERR("%s setting interface failed (%d)", hdev
->name
, -err
);
821 data
->isoc_altsetting
= altsetting
;
823 data
->isoc_tx_ep
= NULL
;
824 data
->isoc_rx_ep
= NULL
;
826 for (i
= 0; i
< intf
->cur_altsetting
->desc
.bNumEndpoints
; i
++) {
827 ep_desc
= &intf
->cur_altsetting
->endpoint
[i
].desc
;
829 if (!data
->isoc_tx_ep
&& usb_endpoint_is_isoc_out(ep_desc
)) {
830 data
->isoc_tx_ep
= ep_desc
;
834 if (!data
->isoc_rx_ep
&& usb_endpoint_is_isoc_in(ep_desc
)) {
835 data
->isoc_rx_ep
= ep_desc
;
840 if (!data
->isoc_tx_ep
|| !data
->isoc_rx_ep
) {
841 BT_ERR("%s invalid SCO descriptors", hdev
->name
);
848 static void btusb_work(struct work_struct
*work
)
850 struct btusb_data
*data
= container_of(work
, struct btusb_data
, work
);
851 struct hci_dev
*hdev
= data
->hdev
;
854 if (hdev
->conn_hash
.sco_num
> 0) {
855 if (!test_bit(BTUSB_DID_ISO_RESUME
, &data
->flags
)) {
856 err
= usb_autopm_get_interface(data
->isoc
? data
->isoc
: data
->intf
);
858 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
859 usb_kill_anchored_urbs(&data
->isoc_anchor
);
863 set_bit(BTUSB_DID_ISO_RESUME
, &data
->flags
);
865 if (data
->isoc_altsetting
!= 2) {
866 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
867 usb_kill_anchored_urbs(&data
->isoc_anchor
);
869 if (__set_isoc_interface(hdev
, 2) < 0)
873 if (!test_and_set_bit(BTUSB_ISOC_RUNNING
, &data
->flags
)) {
874 if (btusb_submit_isoc_urb(hdev
, GFP_KERNEL
) < 0)
875 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
877 btusb_submit_isoc_urb(hdev
, GFP_KERNEL
);
880 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
881 usb_kill_anchored_urbs(&data
->isoc_anchor
);
883 __set_isoc_interface(hdev
, 0);
884 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME
, &data
->flags
))
885 usb_autopm_put_interface(data
->isoc
? data
->isoc
: data
->intf
);
889 static void btusb_waker(struct work_struct
*work
)
891 struct btusb_data
*data
= container_of(work
, struct btusb_data
, waker
);
894 err
= usb_autopm_get_interface(data
->intf
);
898 usb_autopm_put_interface(data
->intf
);
901 static int btusb_probe(struct usb_interface
*intf
,
902 const struct usb_device_id
*id
)
904 struct usb_endpoint_descriptor
*ep_desc
;
905 struct btusb_data
*data
;
906 struct hci_dev
*hdev
;
909 BT_DBG("intf %p id %p", intf
, id
);
911 /* interface numbers are hardcoded in the spec */
912 if (intf
->cur_altsetting
->desc
.bInterfaceNumber
!= 0)
915 if (!id
->driver_info
) {
916 const struct usb_device_id
*match
;
917 match
= usb_match_id(intf
, blacklist_table
);
922 if (id
->driver_info
== BTUSB_IGNORE
)
925 if (ignore_dga
&& id
->driver_info
& BTUSB_DIGIANSWER
)
928 if (ignore_csr
&& id
->driver_info
& BTUSB_CSR
)
931 if (ignore_sniffer
&& id
->driver_info
& BTUSB_SNIFFER
)
934 if (id
->driver_info
& BTUSB_ATH3012
) {
935 struct usb_device
*udev
= interface_to_usbdev(intf
);
937 /* Old firmware would otherwise let ath3k driver load
938 * patch and sysconfig files */
939 if (le16_to_cpu(udev
->descriptor
.bcdDevice
) <= 0x0001)
943 data
= kzalloc(sizeof(*data
), GFP_KERNEL
);
947 for (i
= 0; i
< intf
->cur_altsetting
->desc
.bNumEndpoints
; i
++) {
948 ep_desc
= &intf
->cur_altsetting
->endpoint
[i
].desc
;
950 if (!data
->intr_ep
&& usb_endpoint_is_int_in(ep_desc
)) {
951 data
->intr_ep
= ep_desc
;
955 if (!data
->bulk_tx_ep
&& usb_endpoint_is_bulk_out(ep_desc
)) {
956 data
->bulk_tx_ep
= ep_desc
;
960 if (!data
->bulk_rx_ep
&& usb_endpoint_is_bulk_in(ep_desc
)) {
961 data
->bulk_rx_ep
= ep_desc
;
966 if (!data
->intr_ep
|| !data
->bulk_tx_ep
|| !data
->bulk_rx_ep
) {
971 data
->cmdreq_type
= USB_TYPE_CLASS
;
973 data
->udev
= interface_to_usbdev(intf
);
976 spin_lock_init(&data
->lock
);
978 INIT_WORK(&data
->work
, btusb_work
);
979 INIT_WORK(&data
->waker
, btusb_waker
);
980 spin_lock_init(&data
->txlock
);
982 init_usb_anchor(&data
->tx_anchor
);
983 init_usb_anchor(&data
->intr_anchor
);
984 init_usb_anchor(&data
->bulk_anchor
);
985 init_usb_anchor(&data
->isoc_anchor
);
986 init_usb_anchor(&data
->deferred
);
988 hdev
= hci_alloc_dev();
995 hci_set_drvdata(hdev
, data
);
999 SET_HCIDEV_DEV(hdev
, &intf
->dev
);
1001 hdev
->open
= btusb_open
;
1002 hdev
->close
= btusb_close
;
1003 hdev
->flush
= btusb_flush
;
1004 hdev
->send
= btusb_send_frame
;
1005 hdev
->notify
= btusb_notify
;
1007 /* Interface numbers are hardcoded in the specification */
1008 data
->isoc
= usb_ifnum_to_if(data
->udev
, 1);
1011 set_bit(HCI_QUIRK_NO_RESET
, &hdev
->quirks
);
1013 if (force_scofix
|| id
->driver_info
& BTUSB_WRONG_SCO_MTU
) {
1014 if (!disable_scofix
)
1015 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE
, &hdev
->quirks
);
1018 if (id
->driver_info
& BTUSB_BROKEN_ISOC
)
1021 if (id
->driver_info
& BTUSB_DIGIANSWER
) {
1022 data
->cmdreq_type
= USB_TYPE_VENDOR
;
1023 set_bit(HCI_QUIRK_NO_RESET
, &hdev
->quirks
);
1026 if (id
->driver_info
& BTUSB_CSR
) {
1027 struct usb_device
*udev
= data
->udev
;
1029 /* Old firmware would otherwise execute USB reset */
1030 if (le16_to_cpu(udev
->descriptor
.bcdDevice
) < 0x117)
1031 set_bit(HCI_QUIRK_NO_RESET
, &hdev
->quirks
);
1034 if (id
->driver_info
& BTUSB_SNIFFER
) {
1035 struct usb_device
*udev
= data
->udev
;
1037 /* New sniffer firmware has crippled HCI interface */
1038 if (le16_to_cpu(udev
->descriptor
.bcdDevice
) > 0x997)
1039 set_bit(HCI_QUIRK_RAW_DEVICE
, &hdev
->quirks
);
1044 if (id
->driver_info
& BTUSB_BCM92035
) {
1045 unsigned char cmd
[] = { 0x3b, 0xfc, 0x01, 0x00 };
1046 struct sk_buff
*skb
;
1048 skb
= bt_skb_alloc(sizeof(cmd
), GFP_KERNEL
);
1050 memcpy(skb_put(skb
, sizeof(cmd
)), cmd
, sizeof(cmd
));
1051 skb_queue_tail(&hdev
->driver_init
, skb
);
1056 err
= usb_driver_claim_interface(&btusb_driver
,
1065 err
= hci_register_dev(hdev
);
1072 usb_set_intfdata(intf
, data
);
1077 static void btusb_disconnect(struct usb_interface
*intf
)
1079 struct btusb_data
*data
= usb_get_intfdata(intf
);
1080 struct hci_dev
*hdev
;
1082 BT_DBG("intf %p", intf
);
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
);
1105 static int btusb_suspend(struct usb_interface
*intf
, pm_message_t message
)
1107 struct btusb_data
*data
= usb_get_intfdata(intf
);
1109 BT_DBG("intf %p", intf
);
1111 if (data
->suspend_count
++)
1114 spin_lock_irq(&data
->txlock
);
1115 if (!(PMSG_IS_AUTO(message
) && data
->tx_in_flight
)) {
1116 set_bit(BTUSB_SUSPENDING
, &data
->flags
);
1117 spin_unlock_irq(&data
->txlock
);
1119 spin_unlock_irq(&data
->txlock
);
1120 data
->suspend_count
--;
1124 cancel_work_sync(&data
->work
);
1126 btusb_stop_traffic(data
);
1127 usb_kill_anchored_urbs(&data
->tx_anchor
);
1132 static void play_deferred(struct btusb_data
*data
)
1137 while ((urb
= usb_get_from_anchor(&data
->deferred
))) {
1138 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
1142 data
->tx_in_flight
++;
1144 usb_scuttle_anchored_urbs(&data
->deferred
);
1147 static int btusb_resume(struct usb_interface
*intf
)
1149 struct btusb_data
*data
= usb_get_intfdata(intf
);
1150 struct hci_dev
*hdev
= data
->hdev
;
1153 BT_DBG("intf %p", intf
);
1155 if (--data
->suspend_count
)
1158 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
1161 if (test_bit(BTUSB_INTR_RUNNING
, &data
->flags
)) {
1162 err
= btusb_submit_intr_urb(hdev
, GFP_NOIO
);
1164 clear_bit(BTUSB_INTR_RUNNING
, &data
->flags
);
1169 if (test_bit(BTUSB_BULK_RUNNING
, &data
->flags
)) {
1170 err
= btusb_submit_bulk_urb(hdev
, GFP_NOIO
);
1172 clear_bit(BTUSB_BULK_RUNNING
, &data
->flags
);
1176 btusb_submit_bulk_urb(hdev
, GFP_NOIO
);
1179 if (test_bit(BTUSB_ISOC_RUNNING
, &data
->flags
)) {
1180 if (btusb_submit_isoc_urb(hdev
, GFP_NOIO
) < 0)
1181 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
1183 btusb_submit_isoc_urb(hdev
, GFP_NOIO
);
1186 spin_lock_irq(&data
->txlock
);
1187 play_deferred(data
);
1188 clear_bit(BTUSB_SUSPENDING
, &data
->flags
);
1189 spin_unlock_irq(&data
->txlock
);
1190 schedule_work(&data
->work
);
1195 usb_scuttle_anchored_urbs(&data
->deferred
);
1197 spin_lock_irq(&data
->txlock
);
1198 clear_bit(BTUSB_SUSPENDING
, &data
->flags
);
1199 spin_unlock_irq(&data
->txlock
);
1205 static struct usb_driver btusb_driver
= {
1207 .probe
= btusb_probe
,
1208 .disconnect
= btusb_disconnect
,
1210 .suspend
= btusb_suspend
,
1211 .resume
= btusb_resume
,
1213 .id_table
= btusb_table
,
1214 .supports_autosuspend
= 1,
1217 module_usb_driver(btusb_driver
);
1219 module_param(ignore_dga
, bool, 0644);
1220 MODULE_PARM_DESC(ignore_dga
, "Ignore devices with id 08fd:0001");
1222 module_param(ignore_csr
, bool, 0644);
1223 MODULE_PARM_DESC(ignore_csr
, "Ignore devices with id 0a12:0001");
1225 module_param(ignore_sniffer
, bool, 0644);
1226 MODULE_PARM_DESC(ignore_sniffer
, "Ignore devices with id 0a12:0002");
1228 module_param(disable_scofix
, bool, 0644);
1229 MODULE_PARM_DESC(disable_scofix
, "Disable fixup of wrong SCO buffer size");
1231 module_param(force_scofix
, bool, 0644);
1232 MODULE_PARM_DESC(force_scofix
, "Force fixup of wrong SCO buffers size");
1234 module_param(reset
, bool, 0644);
1235 MODULE_PARM_DESC(reset
, "Send HCI reset command on initialization");
1237 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1238 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION
);
1239 MODULE_VERSION(VERSION
);
1240 MODULE_LICENSE("GPL");