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(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 /* Broadcom BCM20702A0 */
104 { USB_DEVICE(0x0a5c, 0x21e3) },
105 { USB_DEVICE(0x0a5c, 0x21e6) },
106 { USB_DEVICE(0x0a5c, 0x21f3) },
107 { USB_DEVICE(0x413c, 0x8197) },
109 { } /* Terminating entry */
112 MODULE_DEVICE_TABLE(usb
, btusb_table
);
114 static struct usb_device_id blacklist_table
[] = {
115 /* CSR BlueCore devices */
116 { USB_DEVICE(0x0a12, 0x0001), .driver_info
= BTUSB_CSR
},
118 /* Broadcom BCM2033 without firmware */
119 { USB_DEVICE(0x0a5c, 0x2033), .driver_info
= BTUSB_IGNORE
},
121 /* Atheros 3011 with sflash firmware */
122 { USB_DEVICE(0x0cf3, 0x3002), .driver_info
= BTUSB_IGNORE
},
123 { USB_DEVICE(0x13d3, 0x3304), .driver_info
= BTUSB_IGNORE
},
124 { USB_DEVICE(0x0930, 0x0215), .driver_info
= BTUSB_IGNORE
},
125 { USB_DEVICE(0x0489, 0xe03d), .driver_info
= BTUSB_IGNORE
},
127 /* Atheros AR9285 Malbec with sflash firmware */
128 { USB_DEVICE(0x03f0, 0x311d), .driver_info
= BTUSB_IGNORE
},
130 /* Atheros 3012 with sflash firmware */
131 { USB_DEVICE(0x0cf3, 0x3004), .driver_info
= BTUSB_ATH3012
},
132 { USB_DEVICE(0x13d3, 0x3375), .driver_info
= BTUSB_ATH3012
},
134 /* Atheros AR5BBU12 with sflash firmware */
135 { USB_DEVICE(0x0489, 0xe02c), .driver_info
= BTUSB_IGNORE
},
137 /* Broadcom BCM2035 */
138 { USB_DEVICE(0x0a5c, 0x2035), .driver_info
= BTUSB_WRONG_SCO_MTU
},
139 { USB_DEVICE(0x0a5c, 0x200a), .driver_info
= BTUSB_WRONG_SCO_MTU
},
140 { USB_DEVICE(0x0a5c, 0x2009), .driver_info
= BTUSB_BCM92035
},
142 /* Broadcom BCM2045 */
143 { USB_DEVICE(0x0a5c, 0x2039), .driver_info
= BTUSB_WRONG_SCO_MTU
},
144 { USB_DEVICE(0x0a5c, 0x2101), .driver_info
= BTUSB_WRONG_SCO_MTU
},
146 /* IBM/Lenovo ThinkPad with Broadcom chip */
147 { USB_DEVICE(0x0a5c, 0x201e), .driver_info
= BTUSB_WRONG_SCO_MTU
},
148 { USB_DEVICE(0x0a5c, 0x2110), .driver_info
= BTUSB_WRONG_SCO_MTU
},
150 /* HP laptop with Broadcom chip */
151 { USB_DEVICE(0x03f0, 0x171d), .driver_info
= BTUSB_WRONG_SCO_MTU
},
153 /* Dell laptop with Broadcom chip */
154 { USB_DEVICE(0x413c, 0x8126), .driver_info
= BTUSB_WRONG_SCO_MTU
},
156 /* Dell Wireless 370 and 410 devices */
157 { USB_DEVICE(0x413c, 0x8152), .driver_info
= BTUSB_WRONG_SCO_MTU
},
158 { USB_DEVICE(0x413c, 0x8156), .driver_info
= BTUSB_WRONG_SCO_MTU
},
160 /* Belkin F8T012 and F8T013 devices */
161 { USB_DEVICE(0x050d, 0x0012), .driver_info
= BTUSB_WRONG_SCO_MTU
},
162 { USB_DEVICE(0x050d, 0x0013), .driver_info
= BTUSB_WRONG_SCO_MTU
},
164 /* Asus WL-BTD202 device */
165 { USB_DEVICE(0x0b05, 0x1715), .driver_info
= BTUSB_WRONG_SCO_MTU
},
167 /* Kensington Bluetooth USB adapter */
168 { USB_DEVICE(0x047d, 0x105e), .driver_info
= BTUSB_WRONG_SCO_MTU
},
170 /* RTX Telecom based adapters with buggy SCO support */
171 { USB_DEVICE(0x0400, 0x0807), .driver_info
= BTUSB_BROKEN_ISOC
},
172 { USB_DEVICE(0x0400, 0x080a), .driver_info
= BTUSB_BROKEN_ISOC
},
174 /* CONWISE Technology based adapters with buggy SCO support */
175 { USB_DEVICE(0x0e5e, 0x6622), .driver_info
= BTUSB_BROKEN_ISOC
},
177 /* Digianswer devices */
178 { USB_DEVICE(0x08fd, 0x0001), .driver_info
= BTUSB_DIGIANSWER
},
179 { USB_DEVICE(0x08fd, 0x0002), .driver_info
= BTUSB_IGNORE
},
181 /* CSR BlueCore Bluetooth Sniffer */
182 { USB_DEVICE(0x0a12, 0x0002), .driver_info
= BTUSB_SNIFFER
},
184 /* Frontline ComProbe Bluetooth Sniffer */
185 { USB_DEVICE(0x16d3, 0x0002), .driver_info
= BTUSB_SNIFFER
},
187 { } /* Terminating entry */
190 #define BTUSB_MAX_ISOC_FRAMES 10
192 #define BTUSB_INTR_RUNNING 0
193 #define BTUSB_BULK_RUNNING 1
194 #define BTUSB_ISOC_RUNNING 2
195 #define BTUSB_SUSPENDING 3
196 #define BTUSB_DID_ISO_RESUME 4
199 struct hci_dev
*hdev
;
200 struct usb_device
*udev
;
201 struct usb_interface
*intf
;
202 struct usb_interface
*isoc
;
208 struct work_struct work
;
209 struct work_struct waker
;
211 struct usb_anchor tx_anchor
;
212 struct usb_anchor intr_anchor
;
213 struct usb_anchor bulk_anchor
;
214 struct usb_anchor isoc_anchor
;
215 struct usb_anchor deferred
;
219 struct usb_endpoint_descriptor
*intr_ep
;
220 struct usb_endpoint_descriptor
*bulk_tx_ep
;
221 struct usb_endpoint_descriptor
*bulk_rx_ep
;
222 struct usb_endpoint_descriptor
*isoc_tx_ep
;
223 struct usb_endpoint_descriptor
*isoc_rx_ep
;
227 unsigned int sco_num
;
232 static int inc_tx(struct btusb_data
*data
)
237 spin_lock_irqsave(&data
->txlock
, flags
);
238 rv
= test_bit(BTUSB_SUSPENDING
, &data
->flags
);
240 data
->tx_in_flight
++;
241 spin_unlock_irqrestore(&data
->txlock
, flags
);
246 static void btusb_intr_complete(struct urb
*urb
)
248 struct hci_dev
*hdev
= urb
->context
;
249 struct btusb_data
*data
= hci_get_drvdata(hdev
);
252 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
253 urb
, urb
->status
, urb
->actual_length
);
255 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
258 if (urb
->status
== 0) {
259 hdev
->stat
.byte_rx
+= urb
->actual_length
;
261 if (hci_recv_fragment(hdev
, HCI_EVENT_PKT
,
262 urb
->transfer_buffer
,
263 urb
->actual_length
) < 0) {
264 BT_ERR("%s corrupted event packet", hdev
->name
);
269 if (!test_bit(BTUSB_INTR_RUNNING
, &data
->flags
))
272 usb_mark_last_busy(data
->udev
);
273 usb_anchor_urb(urb
, &data
->intr_anchor
);
275 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
277 /* -EPERM: urb is being killed;
278 * -ENODEV: device got disconnected */
279 if (err
!= -EPERM
&& err
!= -ENODEV
)
280 BT_ERR("%s urb %p failed to resubmit (%d)",
281 hdev
->name
, urb
, -err
);
282 usb_unanchor_urb(urb
);
286 static int btusb_submit_intr_urb(struct hci_dev
*hdev
, gfp_t mem_flags
)
288 struct btusb_data
*data
= hci_get_drvdata(hdev
);
294 BT_DBG("%s", hdev
->name
);
299 urb
= usb_alloc_urb(0, mem_flags
);
303 size
= le16_to_cpu(data
->intr_ep
->wMaxPacketSize
);
305 buf
= kmalloc(size
, mem_flags
);
311 pipe
= usb_rcvintpipe(data
->udev
, data
->intr_ep
->bEndpointAddress
);
313 usb_fill_int_urb(urb
, data
->udev
, pipe
, buf
, size
,
314 btusb_intr_complete
, hdev
,
315 data
->intr_ep
->bInterval
);
317 urb
->transfer_flags
|= URB_FREE_BUFFER
;
319 usb_anchor_urb(urb
, &data
->intr_anchor
);
321 err
= usb_submit_urb(urb
, mem_flags
);
323 if (err
!= -EPERM
&& err
!= -ENODEV
)
324 BT_ERR("%s urb %p submission failed (%d)",
325 hdev
->name
, urb
, -err
);
326 usb_unanchor_urb(urb
);
334 static void btusb_bulk_complete(struct urb
*urb
)
336 struct hci_dev
*hdev
= urb
->context
;
337 struct btusb_data
*data
= hci_get_drvdata(hdev
);
340 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
341 urb
, urb
->status
, urb
->actual_length
);
343 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
346 if (urb
->status
== 0) {
347 hdev
->stat
.byte_rx
+= urb
->actual_length
;
349 if (hci_recv_fragment(hdev
, HCI_ACLDATA_PKT
,
350 urb
->transfer_buffer
,
351 urb
->actual_length
) < 0) {
352 BT_ERR("%s corrupted ACL packet", hdev
->name
);
357 if (!test_bit(BTUSB_BULK_RUNNING
, &data
->flags
))
360 usb_anchor_urb(urb
, &data
->bulk_anchor
);
361 usb_mark_last_busy(data
->udev
);
363 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
365 /* -EPERM: urb is being killed;
366 * -ENODEV: device got disconnected */
367 if (err
!= -EPERM
&& err
!= -ENODEV
)
368 BT_ERR("%s urb %p failed to resubmit (%d)",
369 hdev
->name
, urb
, -err
);
370 usb_unanchor_urb(urb
);
374 static int btusb_submit_bulk_urb(struct hci_dev
*hdev
, gfp_t mem_flags
)
376 struct btusb_data
*data
= hci_get_drvdata(hdev
);
380 int err
, size
= HCI_MAX_FRAME_SIZE
;
382 BT_DBG("%s", hdev
->name
);
384 if (!data
->bulk_rx_ep
)
387 urb
= usb_alloc_urb(0, mem_flags
);
391 buf
= kmalloc(size
, mem_flags
);
397 pipe
= usb_rcvbulkpipe(data
->udev
, data
->bulk_rx_ep
->bEndpointAddress
);
399 usb_fill_bulk_urb(urb
, data
->udev
, pipe
,
400 buf
, size
, btusb_bulk_complete
, hdev
);
402 urb
->transfer_flags
|= URB_FREE_BUFFER
;
404 usb_mark_last_busy(data
->udev
);
405 usb_anchor_urb(urb
, &data
->bulk_anchor
);
407 err
= usb_submit_urb(urb
, mem_flags
);
409 if (err
!= -EPERM
&& err
!= -ENODEV
)
410 BT_ERR("%s urb %p submission failed (%d)",
411 hdev
->name
, urb
, -err
);
412 usb_unanchor_urb(urb
);
420 static void btusb_isoc_complete(struct urb
*urb
)
422 struct hci_dev
*hdev
= urb
->context
;
423 struct btusb_data
*data
= hci_get_drvdata(hdev
);
426 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
427 urb
, urb
->status
, urb
->actual_length
);
429 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
432 if (urb
->status
== 0) {
433 for (i
= 0; i
< urb
->number_of_packets
; i
++) {
434 unsigned int offset
= urb
->iso_frame_desc
[i
].offset
;
435 unsigned int length
= urb
->iso_frame_desc
[i
].actual_length
;
437 if (urb
->iso_frame_desc
[i
].status
)
440 hdev
->stat
.byte_rx
+= length
;
442 if (hci_recv_fragment(hdev
, HCI_SCODATA_PKT
,
443 urb
->transfer_buffer
+ offset
,
445 BT_ERR("%s corrupted SCO packet", hdev
->name
);
451 if (!test_bit(BTUSB_ISOC_RUNNING
, &data
->flags
))
454 usb_anchor_urb(urb
, &data
->isoc_anchor
);
456 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
458 /* -EPERM: urb is being killed;
459 * -ENODEV: device got disconnected */
460 if (err
!= -EPERM
&& err
!= -ENODEV
)
461 BT_ERR("%s urb %p failed to resubmit (%d)",
462 hdev
->name
, urb
, -err
);
463 usb_unanchor_urb(urb
);
467 static inline void __fill_isoc_descriptor(struct urb
*urb
, int len
, int mtu
)
471 BT_DBG("len %d mtu %d", len
, mtu
);
473 for (i
= 0; i
< BTUSB_MAX_ISOC_FRAMES
&& len
>= mtu
;
474 i
++, offset
+= mtu
, len
-= mtu
) {
475 urb
->iso_frame_desc
[i
].offset
= offset
;
476 urb
->iso_frame_desc
[i
].length
= mtu
;
479 if (len
&& i
< BTUSB_MAX_ISOC_FRAMES
) {
480 urb
->iso_frame_desc
[i
].offset
= offset
;
481 urb
->iso_frame_desc
[i
].length
= len
;
485 urb
->number_of_packets
= i
;
488 static int btusb_submit_isoc_urb(struct hci_dev
*hdev
, gfp_t mem_flags
)
490 struct btusb_data
*data
= hci_get_drvdata(hdev
);
496 BT_DBG("%s", hdev
->name
);
498 if (!data
->isoc_rx_ep
)
501 urb
= usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES
, mem_flags
);
505 size
= le16_to_cpu(data
->isoc_rx_ep
->wMaxPacketSize
) *
506 BTUSB_MAX_ISOC_FRAMES
;
508 buf
= kmalloc(size
, mem_flags
);
514 pipe
= usb_rcvisocpipe(data
->udev
, data
->isoc_rx_ep
->bEndpointAddress
);
516 usb_fill_int_urb(urb
, data
->udev
, pipe
, buf
, size
, btusb_isoc_complete
,
517 hdev
, data
->isoc_rx_ep
->bInterval
);
519 urb
->transfer_flags
= URB_FREE_BUFFER
| URB_ISO_ASAP
;
521 __fill_isoc_descriptor(urb
, size
,
522 le16_to_cpu(data
->isoc_rx_ep
->wMaxPacketSize
));
524 usb_anchor_urb(urb
, &data
->isoc_anchor
);
526 err
= usb_submit_urb(urb
, mem_flags
);
528 if (err
!= -EPERM
&& err
!= -ENODEV
)
529 BT_ERR("%s urb %p submission failed (%d)",
530 hdev
->name
, urb
, -err
);
531 usb_unanchor_urb(urb
);
539 static void btusb_tx_complete(struct urb
*urb
)
541 struct sk_buff
*skb
= urb
->context
;
542 struct hci_dev
*hdev
= (struct hci_dev
*) skb
->dev
;
543 struct btusb_data
*data
= hci_get_drvdata(hdev
);
545 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
546 urb
, urb
->status
, urb
->actual_length
);
548 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
552 hdev
->stat
.byte_tx
+= urb
->transfer_buffer_length
;
557 spin_lock(&data
->txlock
);
558 data
->tx_in_flight
--;
559 spin_unlock(&data
->txlock
);
561 kfree(urb
->setup_packet
);
566 static void btusb_isoc_tx_complete(struct urb
*urb
)
568 struct sk_buff
*skb
= urb
->context
;
569 struct hci_dev
*hdev
= (struct hci_dev
*) skb
->dev
;
571 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
572 urb
, urb
->status
, urb
->actual_length
);
574 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
578 hdev
->stat
.byte_tx
+= urb
->transfer_buffer_length
;
583 kfree(urb
->setup_packet
);
588 static int btusb_open(struct hci_dev
*hdev
)
590 struct btusb_data
*data
= hci_get_drvdata(hdev
);
593 BT_DBG("%s", hdev
->name
);
595 err
= usb_autopm_get_interface(data
->intf
);
599 data
->intf
->needs_remote_wakeup
= 1;
601 if (test_and_set_bit(HCI_RUNNING
, &hdev
->flags
))
604 if (test_and_set_bit(BTUSB_INTR_RUNNING
, &data
->flags
))
607 err
= btusb_submit_intr_urb(hdev
, GFP_KERNEL
);
611 err
= btusb_submit_bulk_urb(hdev
, GFP_KERNEL
);
613 usb_kill_anchored_urbs(&data
->intr_anchor
);
617 set_bit(BTUSB_BULK_RUNNING
, &data
->flags
);
618 btusb_submit_bulk_urb(hdev
, GFP_KERNEL
);
621 usb_autopm_put_interface(data
->intf
);
625 clear_bit(BTUSB_INTR_RUNNING
, &data
->flags
);
626 clear_bit(HCI_RUNNING
, &hdev
->flags
);
627 usb_autopm_put_interface(data
->intf
);
631 static void btusb_stop_traffic(struct btusb_data
*data
)
633 usb_kill_anchored_urbs(&data
->intr_anchor
);
634 usb_kill_anchored_urbs(&data
->bulk_anchor
);
635 usb_kill_anchored_urbs(&data
->isoc_anchor
);
638 static int btusb_close(struct hci_dev
*hdev
)
640 struct btusb_data
*data
= hci_get_drvdata(hdev
);
643 BT_DBG("%s", hdev
->name
);
645 if (!test_and_clear_bit(HCI_RUNNING
, &hdev
->flags
))
648 cancel_work_sync(&data
->work
);
649 cancel_work_sync(&data
->waker
);
651 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
652 clear_bit(BTUSB_BULK_RUNNING
, &data
->flags
);
653 clear_bit(BTUSB_INTR_RUNNING
, &data
->flags
);
655 btusb_stop_traffic(data
);
656 err
= usb_autopm_get_interface(data
->intf
);
660 data
->intf
->needs_remote_wakeup
= 0;
661 usb_autopm_put_interface(data
->intf
);
664 usb_scuttle_anchored_urbs(&data
->deferred
);
668 static int btusb_flush(struct hci_dev
*hdev
)
670 struct btusb_data
*data
= hci_get_drvdata(hdev
);
672 BT_DBG("%s", hdev
->name
);
674 usb_kill_anchored_urbs(&data
->tx_anchor
);
679 static int btusb_send_frame(struct sk_buff
*skb
)
681 struct hci_dev
*hdev
= (struct hci_dev
*) skb
->dev
;
682 struct btusb_data
*data
= hci_get_drvdata(hdev
);
683 struct usb_ctrlrequest
*dr
;
688 BT_DBG("%s", hdev
->name
);
690 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
693 switch (bt_cb(skb
)->pkt_type
) {
694 case HCI_COMMAND_PKT
:
695 urb
= usb_alloc_urb(0, GFP_ATOMIC
);
699 dr
= kmalloc(sizeof(*dr
), GFP_ATOMIC
);
705 dr
->bRequestType
= data
->cmdreq_type
;
709 dr
->wLength
= __cpu_to_le16(skb
->len
);
711 pipe
= usb_sndctrlpipe(data
->udev
, 0x00);
713 usb_fill_control_urb(urb
, data
->udev
, pipe
, (void *) dr
,
714 skb
->data
, skb
->len
, btusb_tx_complete
, skb
);
719 case HCI_ACLDATA_PKT
:
720 if (!data
->bulk_tx_ep
)
723 urb
= usb_alloc_urb(0, GFP_ATOMIC
);
727 pipe
= usb_sndbulkpipe(data
->udev
,
728 data
->bulk_tx_ep
->bEndpointAddress
);
730 usb_fill_bulk_urb(urb
, data
->udev
, pipe
,
731 skb
->data
, skb
->len
, btusb_tx_complete
, skb
);
736 case HCI_SCODATA_PKT
:
737 if (!data
->isoc_tx_ep
|| hdev
->conn_hash
.sco_num
< 1)
740 urb
= usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES
, GFP_ATOMIC
);
744 pipe
= usb_sndisocpipe(data
->udev
,
745 data
->isoc_tx_ep
->bEndpointAddress
);
747 usb_fill_int_urb(urb
, data
->udev
, pipe
,
748 skb
->data
, skb
->len
, btusb_isoc_tx_complete
,
749 skb
, data
->isoc_tx_ep
->bInterval
);
751 urb
->transfer_flags
= URB_ISO_ASAP
;
753 __fill_isoc_descriptor(urb
, skb
->len
,
754 le16_to_cpu(data
->isoc_tx_ep
->wMaxPacketSize
));
765 usb_anchor_urb(urb
, &data
->deferred
);
766 schedule_work(&data
->waker
);
772 usb_anchor_urb(urb
, &data
->tx_anchor
);
774 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
776 if (err
!= -EPERM
&& err
!= -ENODEV
)
777 BT_ERR("%s urb %p submission failed (%d)",
778 hdev
->name
, urb
, -err
);
779 kfree(urb
->setup_packet
);
780 usb_unanchor_urb(urb
);
782 usb_mark_last_busy(data
->udev
);
790 static void btusb_notify(struct hci_dev
*hdev
, unsigned int evt
)
792 struct btusb_data
*data
= hci_get_drvdata(hdev
);
794 BT_DBG("%s evt %d", hdev
->name
, evt
);
796 if (hdev
->conn_hash
.sco_num
!= data
->sco_num
) {
797 data
->sco_num
= hdev
->conn_hash
.sco_num
;
798 schedule_work(&data
->work
);
802 static inline int __set_isoc_interface(struct hci_dev
*hdev
, int altsetting
)
804 struct btusb_data
*data
= hci_get_drvdata(hdev
);
805 struct usb_interface
*intf
= data
->isoc
;
806 struct usb_endpoint_descriptor
*ep_desc
;
812 err
= usb_set_interface(data
->udev
, 1, altsetting
);
814 BT_ERR("%s setting interface failed (%d)", hdev
->name
, -err
);
818 data
->isoc_altsetting
= altsetting
;
820 data
->isoc_tx_ep
= NULL
;
821 data
->isoc_rx_ep
= NULL
;
823 for (i
= 0; i
< intf
->cur_altsetting
->desc
.bNumEndpoints
; i
++) {
824 ep_desc
= &intf
->cur_altsetting
->endpoint
[i
].desc
;
826 if (!data
->isoc_tx_ep
&& usb_endpoint_is_isoc_out(ep_desc
)) {
827 data
->isoc_tx_ep
= ep_desc
;
831 if (!data
->isoc_rx_ep
&& usb_endpoint_is_isoc_in(ep_desc
)) {
832 data
->isoc_rx_ep
= ep_desc
;
837 if (!data
->isoc_tx_ep
|| !data
->isoc_rx_ep
) {
838 BT_ERR("%s invalid SCO descriptors", hdev
->name
);
845 static void btusb_work(struct work_struct
*work
)
847 struct btusb_data
*data
= container_of(work
, struct btusb_data
, work
);
848 struct hci_dev
*hdev
= data
->hdev
;
851 if (hdev
->conn_hash
.sco_num
> 0) {
852 if (!test_bit(BTUSB_DID_ISO_RESUME
, &data
->flags
)) {
853 err
= usb_autopm_get_interface(data
->isoc
? data
->isoc
: data
->intf
);
855 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
856 usb_kill_anchored_urbs(&data
->isoc_anchor
);
860 set_bit(BTUSB_DID_ISO_RESUME
, &data
->flags
);
862 if (data
->isoc_altsetting
!= 2) {
863 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
864 usb_kill_anchored_urbs(&data
->isoc_anchor
);
866 if (__set_isoc_interface(hdev
, 2) < 0)
870 if (!test_and_set_bit(BTUSB_ISOC_RUNNING
, &data
->flags
)) {
871 if (btusb_submit_isoc_urb(hdev
, GFP_KERNEL
) < 0)
872 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
874 btusb_submit_isoc_urb(hdev
, GFP_KERNEL
);
877 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
878 usb_kill_anchored_urbs(&data
->isoc_anchor
);
880 __set_isoc_interface(hdev
, 0);
881 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME
, &data
->flags
))
882 usb_autopm_put_interface(data
->isoc
? data
->isoc
: data
->intf
);
886 static void btusb_waker(struct work_struct
*work
)
888 struct btusb_data
*data
= container_of(work
, struct btusb_data
, waker
);
891 err
= usb_autopm_get_interface(data
->intf
);
895 usb_autopm_put_interface(data
->intf
);
898 static int btusb_probe(struct usb_interface
*intf
,
899 const struct usb_device_id
*id
)
901 struct usb_endpoint_descriptor
*ep_desc
;
902 struct btusb_data
*data
;
903 struct hci_dev
*hdev
;
906 BT_DBG("intf %p id %p", intf
, id
);
908 /* interface numbers are hardcoded in the spec */
909 if (intf
->cur_altsetting
->desc
.bInterfaceNumber
!= 0)
912 if (!id
->driver_info
) {
913 const struct usb_device_id
*match
;
914 match
= usb_match_id(intf
, blacklist_table
);
919 if (id
->driver_info
== BTUSB_IGNORE
)
922 if (ignore_dga
&& id
->driver_info
& BTUSB_DIGIANSWER
)
925 if (ignore_csr
&& id
->driver_info
& BTUSB_CSR
)
928 if (ignore_sniffer
&& id
->driver_info
& BTUSB_SNIFFER
)
931 if (id
->driver_info
& BTUSB_ATH3012
) {
932 struct usb_device
*udev
= interface_to_usbdev(intf
);
934 /* Old firmware would otherwise let ath3k driver load
935 * patch and sysconfig files */
936 if (le16_to_cpu(udev
->descriptor
.bcdDevice
) <= 0x0001)
940 data
= kzalloc(sizeof(*data
), GFP_KERNEL
);
944 for (i
= 0; i
< intf
->cur_altsetting
->desc
.bNumEndpoints
; i
++) {
945 ep_desc
= &intf
->cur_altsetting
->endpoint
[i
].desc
;
947 if (!data
->intr_ep
&& usb_endpoint_is_int_in(ep_desc
)) {
948 data
->intr_ep
= ep_desc
;
952 if (!data
->bulk_tx_ep
&& usb_endpoint_is_bulk_out(ep_desc
)) {
953 data
->bulk_tx_ep
= ep_desc
;
957 if (!data
->bulk_rx_ep
&& usb_endpoint_is_bulk_in(ep_desc
)) {
958 data
->bulk_rx_ep
= ep_desc
;
963 if (!data
->intr_ep
|| !data
->bulk_tx_ep
|| !data
->bulk_rx_ep
) {
968 data
->cmdreq_type
= USB_TYPE_CLASS
;
970 data
->udev
= interface_to_usbdev(intf
);
973 spin_lock_init(&data
->lock
);
975 INIT_WORK(&data
->work
, btusb_work
);
976 INIT_WORK(&data
->waker
, btusb_waker
);
977 spin_lock_init(&data
->txlock
);
979 init_usb_anchor(&data
->tx_anchor
);
980 init_usb_anchor(&data
->intr_anchor
);
981 init_usb_anchor(&data
->bulk_anchor
);
982 init_usb_anchor(&data
->isoc_anchor
);
983 init_usb_anchor(&data
->deferred
);
985 hdev
= hci_alloc_dev();
992 hci_set_drvdata(hdev
, data
);
996 SET_HCIDEV_DEV(hdev
, &intf
->dev
);
998 hdev
->open
= btusb_open
;
999 hdev
->close
= btusb_close
;
1000 hdev
->flush
= btusb_flush
;
1001 hdev
->send
= btusb_send_frame
;
1002 hdev
->notify
= btusb_notify
;
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
);
1085 usb_set_intfdata(data
->intf
, NULL
);
1088 usb_set_intfdata(data
->isoc
, NULL
);
1090 hci_unregister_dev(hdev
);
1092 if (intf
== data
->isoc
)
1093 usb_driver_release_interface(&btusb_driver
, data
->intf
);
1094 else if (data
->isoc
)
1095 usb_driver_release_interface(&btusb_driver
, data
->isoc
);
1102 static int btusb_suspend(struct usb_interface
*intf
, pm_message_t message
)
1104 struct btusb_data
*data
= usb_get_intfdata(intf
);
1106 BT_DBG("intf %p", intf
);
1108 if (data
->suspend_count
++)
1111 spin_lock_irq(&data
->txlock
);
1112 if (!(PMSG_IS_AUTO(message
) && data
->tx_in_flight
)) {
1113 set_bit(BTUSB_SUSPENDING
, &data
->flags
);
1114 spin_unlock_irq(&data
->txlock
);
1116 spin_unlock_irq(&data
->txlock
);
1117 data
->suspend_count
--;
1121 cancel_work_sync(&data
->work
);
1123 btusb_stop_traffic(data
);
1124 usb_kill_anchored_urbs(&data
->tx_anchor
);
1129 static void play_deferred(struct btusb_data
*data
)
1134 while ((urb
= usb_get_from_anchor(&data
->deferred
))) {
1135 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
1139 data
->tx_in_flight
++;
1141 usb_scuttle_anchored_urbs(&data
->deferred
);
1144 static int btusb_resume(struct usb_interface
*intf
)
1146 struct btusb_data
*data
= usb_get_intfdata(intf
);
1147 struct hci_dev
*hdev
= data
->hdev
;
1150 BT_DBG("intf %p", intf
);
1152 if (--data
->suspend_count
)
1155 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
1158 if (test_bit(BTUSB_INTR_RUNNING
, &data
->flags
)) {
1159 err
= btusb_submit_intr_urb(hdev
, GFP_NOIO
);
1161 clear_bit(BTUSB_INTR_RUNNING
, &data
->flags
);
1166 if (test_bit(BTUSB_BULK_RUNNING
, &data
->flags
)) {
1167 err
= btusb_submit_bulk_urb(hdev
, GFP_NOIO
);
1169 clear_bit(BTUSB_BULK_RUNNING
, &data
->flags
);
1173 btusb_submit_bulk_urb(hdev
, GFP_NOIO
);
1176 if (test_bit(BTUSB_ISOC_RUNNING
, &data
->flags
)) {
1177 if (btusb_submit_isoc_urb(hdev
, GFP_NOIO
) < 0)
1178 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
1180 btusb_submit_isoc_urb(hdev
, GFP_NOIO
);
1183 spin_lock_irq(&data
->txlock
);
1184 play_deferred(data
);
1185 clear_bit(BTUSB_SUSPENDING
, &data
->flags
);
1186 spin_unlock_irq(&data
->txlock
);
1187 schedule_work(&data
->work
);
1192 usb_scuttle_anchored_urbs(&data
->deferred
);
1194 spin_lock_irq(&data
->txlock
);
1195 clear_bit(BTUSB_SUSPENDING
, &data
->flags
);
1196 spin_unlock_irq(&data
->txlock
);
1202 static struct usb_driver btusb_driver
= {
1204 .probe
= btusb_probe
,
1205 .disconnect
= btusb_disconnect
,
1207 .suspend
= btusb_suspend
,
1208 .resume
= btusb_resume
,
1210 .id_table
= btusb_table
,
1211 .supports_autosuspend
= 1,
1214 module_usb_driver(btusb_driver
);
1216 module_param(ignore_dga
, bool, 0644);
1217 MODULE_PARM_DESC(ignore_dga
, "Ignore devices with id 08fd:0001");
1219 module_param(ignore_csr
, bool, 0644);
1220 MODULE_PARM_DESC(ignore_csr
, "Ignore devices with id 0a12:0001");
1222 module_param(ignore_sniffer
, bool, 0644);
1223 MODULE_PARM_DESC(ignore_sniffer
, "Ignore devices with id 0a12:0002");
1225 module_param(disable_scofix
, bool, 0644);
1226 MODULE_PARM_DESC(disable_scofix
, "Disable fixup of wrong SCO buffer size");
1228 module_param(force_scofix
, bool, 0644);
1229 MODULE_PARM_DESC(force_scofix
, "Force fixup of wrong SCO buffers size");
1231 module_param(reset
, bool, 0644);
1232 MODULE_PARM_DESC(reset
, "Send HCI reset command on initialization");
1234 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1235 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION
);
1236 MODULE_VERSION(VERSION
);
1237 MODULE_LICENSE("GPL");