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(0x413c, 0x8197) },
107 { } /* Terminating entry */
110 MODULE_DEVICE_TABLE(usb
, btusb_table
);
112 static struct usb_device_id blacklist_table
[] = {
113 /* CSR BlueCore devices */
114 { USB_DEVICE(0x0a12, 0x0001), .driver_info
= BTUSB_CSR
},
116 /* Broadcom BCM2033 without firmware */
117 { USB_DEVICE(0x0a5c, 0x2033), .driver_info
= BTUSB_IGNORE
},
119 /* Atheros 3011 with sflash firmware */
120 { USB_DEVICE(0x0cf3, 0x3002), .driver_info
= BTUSB_IGNORE
},
121 { USB_DEVICE(0x13d3, 0x3304), .driver_info
= BTUSB_IGNORE
},
122 { USB_DEVICE(0x0930, 0x0215), .driver_info
= BTUSB_IGNORE
},
124 /* Atheros AR9285 Malbec with sflash firmware */
125 { USB_DEVICE(0x03f0, 0x311d), .driver_info
= BTUSB_IGNORE
},
127 /* Atheros 3012 with sflash firmware */
128 { USB_DEVICE(0x0cf3, 0x3004), .driver_info
= BTUSB_ATH3012
},
130 /* Atheros AR5BBU12 with sflash firmware */
131 { USB_DEVICE(0x0489, 0xe02c), .driver_info
= BTUSB_IGNORE
},
133 /* Broadcom BCM2035 */
134 { USB_DEVICE(0x0a5c, 0x2035), .driver_info
= BTUSB_WRONG_SCO_MTU
},
135 { USB_DEVICE(0x0a5c, 0x200a), .driver_info
= BTUSB_WRONG_SCO_MTU
},
136 { USB_DEVICE(0x0a5c, 0x2009), .driver_info
= BTUSB_BCM92035
},
138 /* Broadcom BCM2045 */
139 { USB_DEVICE(0x0a5c, 0x2039), .driver_info
= BTUSB_WRONG_SCO_MTU
},
140 { USB_DEVICE(0x0a5c, 0x2101), .driver_info
= BTUSB_WRONG_SCO_MTU
},
142 /* IBM/Lenovo ThinkPad with Broadcom chip */
143 { USB_DEVICE(0x0a5c, 0x201e), .driver_info
= BTUSB_WRONG_SCO_MTU
},
144 { USB_DEVICE(0x0a5c, 0x2110), .driver_info
= BTUSB_WRONG_SCO_MTU
},
146 /* HP laptop with Broadcom chip */
147 { USB_DEVICE(0x03f0, 0x171d), .driver_info
= BTUSB_WRONG_SCO_MTU
},
149 /* Dell laptop with Broadcom chip */
150 { USB_DEVICE(0x413c, 0x8126), .driver_info
= BTUSB_WRONG_SCO_MTU
},
152 /* Dell Wireless 370 and 410 devices */
153 { USB_DEVICE(0x413c, 0x8152), .driver_info
= BTUSB_WRONG_SCO_MTU
},
154 { USB_DEVICE(0x413c, 0x8156), .driver_info
= BTUSB_WRONG_SCO_MTU
},
156 /* Belkin F8T012 and F8T013 devices */
157 { USB_DEVICE(0x050d, 0x0012), .driver_info
= BTUSB_WRONG_SCO_MTU
},
158 { USB_DEVICE(0x050d, 0x0013), .driver_info
= BTUSB_WRONG_SCO_MTU
},
160 /* Asus WL-BTD202 device */
161 { USB_DEVICE(0x0b05, 0x1715), .driver_info
= BTUSB_WRONG_SCO_MTU
},
163 /* Kensington Bluetooth USB adapter */
164 { USB_DEVICE(0x047d, 0x105e), .driver_info
= BTUSB_WRONG_SCO_MTU
},
166 /* RTX Telecom based adapters with buggy SCO support */
167 { USB_DEVICE(0x0400, 0x0807), .driver_info
= BTUSB_BROKEN_ISOC
},
168 { USB_DEVICE(0x0400, 0x080a), .driver_info
= BTUSB_BROKEN_ISOC
},
170 /* CONWISE Technology based adapters with buggy SCO support */
171 { USB_DEVICE(0x0e5e, 0x6622), .driver_info
= BTUSB_BROKEN_ISOC
},
173 /* Digianswer devices */
174 { USB_DEVICE(0x08fd, 0x0001), .driver_info
= BTUSB_DIGIANSWER
},
175 { USB_DEVICE(0x08fd, 0x0002), .driver_info
= BTUSB_IGNORE
},
177 /* CSR BlueCore Bluetooth Sniffer */
178 { USB_DEVICE(0x0a12, 0x0002), .driver_info
= BTUSB_SNIFFER
},
180 /* Frontline ComProbe Bluetooth Sniffer */
181 { USB_DEVICE(0x16d3, 0x0002), .driver_info
= BTUSB_SNIFFER
},
183 { } /* Terminating entry */
186 #define BTUSB_MAX_ISOC_FRAMES 10
188 #define BTUSB_INTR_RUNNING 0
189 #define BTUSB_BULK_RUNNING 1
190 #define BTUSB_ISOC_RUNNING 2
191 #define BTUSB_SUSPENDING 3
192 #define BTUSB_DID_ISO_RESUME 4
195 struct hci_dev
*hdev
;
196 struct usb_device
*udev
;
197 struct usb_interface
*intf
;
198 struct usb_interface
*isoc
;
204 struct work_struct work
;
205 struct work_struct waker
;
207 struct usb_anchor tx_anchor
;
208 struct usb_anchor intr_anchor
;
209 struct usb_anchor bulk_anchor
;
210 struct usb_anchor isoc_anchor
;
211 struct usb_anchor deferred
;
215 struct usb_endpoint_descriptor
*intr_ep
;
216 struct usb_endpoint_descriptor
*bulk_tx_ep
;
217 struct usb_endpoint_descriptor
*bulk_rx_ep
;
218 struct usb_endpoint_descriptor
*isoc_tx_ep
;
219 struct usb_endpoint_descriptor
*isoc_rx_ep
;
223 unsigned int sco_num
;
228 static int inc_tx(struct btusb_data
*data
)
233 spin_lock_irqsave(&data
->txlock
, flags
);
234 rv
= test_bit(BTUSB_SUSPENDING
, &data
->flags
);
236 data
->tx_in_flight
++;
237 spin_unlock_irqrestore(&data
->txlock
, flags
);
242 static void btusb_intr_complete(struct urb
*urb
)
244 struct hci_dev
*hdev
= urb
->context
;
245 struct btusb_data
*data
= hdev
->driver_data
;
248 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
249 urb
, urb
->status
, urb
->actual_length
);
251 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
254 if (urb
->status
== 0) {
255 hdev
->stat
.byte_rx
+= urb
->actual_length
;
257 if (hci_recv_fragment(hdev
, HCI_EVENT_PKT
,
258 urb
->transfer_buffer
,
259 urb
->actual_length
) < 0) {
260 BT_ERR("%s corrupted event packet", hdev
->name
);
265 if (!test_bit(BTUSB_INTR_RUNNING
, &data
->flags
))
268 usb_mark_last_busy(data
->udev
);
269 usb_anchor_urb(urb
, &data
->intr_anchor
);
271 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
273 /* -EPERM: urb is being killed;
274 * -ENODEV: device got disconnected */
275 if (err
!= -EPERM
&& err
!= -ENODEV
)
276 BT_ERR("%s urb %p failed to resubmit (%d)",
277 hdev
->name
, urb
, -err
);
278 usb_unanchor_urb(urb
);
282 static int btusb_submit_intr_urb(struct hci_dev
*hdev
, gfp_t mem_flags
)
284 struct btusb_data
*data
= hdev
->driver_data
;
290 BT_DBG("%s", hdev
->name
);
295 urb
= usb_alloc_urb(0, mem_flags
);
299 size
= le16_to_cpu(data
->intr_ep
->wMaxPacketSize
);
301 buf
= kmalloc(size
, mem_flags
);
307 pipe
= usb_rcvintpipe(data
->udev
, data
->intr_ep
->bEndpointAddress
);
309 usb_fill_int_urb(urb
, data
->udev
, pipe
, buf
, size
,
310 btusb_intr_complete
, hdev
,
311 data
->intr_ep
->bInterval
);
313 urb
->transfer_flags
|= URB_FREE_BUFFER
;
315 usb_anchor_urb(urb
, &data
->intr_anchor
);
317 err
= usb_submit_urb(urb
, mem_flags
);
319 if (err
!= -EPERM
&& err
!= -ENODEV
)
320 BT_ERR("%s urb %p submission failed (%d)",
321 hdev
->name
, urb
, -err
);
322 usb_unanchor_urb(urb
);
330 static void btusb_bulk_complete(struct urb
*urb
)
332 struct hci_dev
*hdev
= urb
->context
;
333 struct btusb_data
*data
= hdev
->driver_data
;
336 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
337 urb
, urb
->status
, urb
->actual_length
);
339 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
342 if (urb
->status
== 0) {
343 hdev
->stat
.byte_rx
+= urb
->actual_length
;
345 if (hci_recv_fragment(hdev
, HCI_ACLDATA_PKT
,
346 urb
->transfer_buffer
,
347 urb
->actual_length
) < 0) {
348 BT_ERR("%s corrupted ACL packet", hdev
->name
);
353 if (!test_bit(BTUSB_BULK_RUNNING
, &data
->flags
))
356 usb_anchor_urb(urb
, &data
->bulk_anchor
);
357 usb_mark_last_busy(data
->udev
);
359 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
361 /* -EPERM: urb is being killed;
362 * -ENODEV: device got disconnected */
363 if (err
!= -EPERM
&& err
!= -ENODEV
)
364 BT_ERR("%s urb %p failed to resubmit (%d)",
365 hdev
->name
, urb
, -err
);
366 usb_unanchor_urb(urb
);
370 static int btusb_submit_bulk_urb(struct hci_dev
*hdev
, gfp_t mem_flags
)
372 struct btusb_data
*data
= hdev
->driver_data
;
376 int err
, size
= HCI_MAX_FRAME_SIZE
;
378 BT_DBG("%s", hdev
->name
);
380 if (!data
->bulk_rx_ep
)
383 urb
= usb_alloc_urb(0, mem_flags
);
387 buf
= kmalloc(size
, mem_flags
);
393 pipe
= usb_rcvbulkpipe(data
->udev
, data
->bulk_rx_ep
->bEndpointAddress
);
395 usb_fill_bulk_urb(urb
, data
->udev
, pipe
,
396 buf
, size
, btusb_bulk_complete
, hdev
);
398 urb
->transfer_flags
|= URB_FREE_BUFFER
;
400 usb_mark_last_busy(data
->udev
);
401 usb_anchor_urb(urb
, &data
->bulk_anchor
);
403 err
= usb_submit_urb(urb
, mem_flags
);
405 if (err
!= -EPERM
&& err
!= -ENODEV
)
406 BT_ERR("%s urb %p submission failed (%d)",
407 hdev
->name
, urb
, -err
);
408 usb_unanchor_urb(urb
);
416 static void btusb_isoc_complete(struct urb
*urb
)
418 struct hci_dev
*hdev
= urb
->context
;
419 struct btusb_data
*data
= hdev
->driver_data
;
422 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
423 urb
, urb
->status
, urb
->actual_length
);
425 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
428 if (urb
->status
== 0) {
429 for (i
= 0; i
< urb
->number_of_packets
; i
++) {
430 unsigned int offset
= urb
->iso_frame_desc
[i
].offset
;
431 unsigned int length
= urb
->iso_frame_desc
[i
].actual_length
;
433 if (urb
->iso_frame_desc
[i
].status
)
436 hdev
->stat
.byte_rx
+= length
;
438 if (hci_recv_fragment(hdev
, HCI_SCODATA_PKT
,
439 urb
->transfer_buffer
+ offset
,
441 BT_ERR("%s corrupted SCO packet", hdev
->name
);
447 if (!test_bit(BTUSB_ISOC_RUNNING
, &data
->flags
))
450 usb_anchor_urb(urb
, &data
->isoc_anchor
);
452 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
454 /* -EPERM: urb is being killed;
455 * -ENODEV: device got disconnected */
456 if (err
!= -EPERM
&& err
!= -ENODEV
)
457 BT_ERR("%s urb %p failed to resubmit (%d)",
458 hdev
->name
, urb
, -err
);
459 usb_unanchor_urb(urb
);
463 static inline void __fill_isoc_descriptor(struct urb
*urb
, int len
, int mtu
)
467 BT_DBG("len %d mtu %d", len
, mtu
);
469 for (i
= 0; i
< BTUSB_MAX_ISOC_FRAMES
&& len
>= mtu
;
470 i
++, offset
+= mtu
, len
-= mtu
) {
471 urb
->iso_frame_desc
[i
].offset
= offset
;
472 urb
->iso_frame_desc
[i
].length
= mtu
;
475 if (len
&& i
< BTUSB_MAX_ISOC_FRAMES
) {
476 urb
->iso_frame_desc
[i
].offset
= offset
;
477 urb
->iso_frame_desc
[i
].length
= len
;
481 urb
->number_of_packets
= i
;
484 static int btusb_submit_isoc_urb(struct hci_dev
*hdev
, gfp_t mem_flags
)
486 struct btusb_data
*data
= hdev
->driver_data
;
492 BT_DBG("%s", hdev
->name
);
494 if (!data
->isoc_rx_ep
)
497 urb
= usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES
, mem_flags
);
501 size
= le16_to_cpu(data
->isoc_rx_ep
->wMaxPacketSize
) *
502 BTUSB_MAX_ISOC_FRAMES
;
504 buf
= kmalloc(size
, mem_flags
);
510 pipe
= usb_rcvisocpipe(data
->udev
, data
->isoc_rx_ep
->bEndpointAddress
);
512 usb_fill_int_urb(urb
, data
->udev
, pipe
, buf
, size
, btusb_isoc_complete
,
513 hdev
, data
->isoc_rx_ep
->bInterval
);
515 urb
->transfer_flags
= URB_FREE_BUFFER
| URB_ISO_ASAP
;
517 __fill_isoc_descriptor(urb
, size
,
518 le16_to_cpu(data
->isoc_rx_ep
->wMaxPacketSize
));
520 usb_anchor_urb(urb
, &data
->isoc_anchor
);
522 err
= usb_submit_urb(urb
, mem_flags
);
524 if (err
!= -EPERM
&& err
!= -ENODEV
)
525 BT_ERR("%s urb %p submission failed (%d)",
526 hdev
->name
, urb
, -err
);
527 usb_unanchor_urb(urb
);
535 static void btusb_tx_complete(struct urb
*urb
)
537 struct sk_buff
*skb
= urb
->context
;
538 struct hci_dev
*hdev
= (struct hci_dev
*) skb
->dev
;
539 struct btusb_data
*data
= hdev
->driver_data
;
541 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
542 urb
, urb
->status
, urb
->actual_length
);
544 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
548 hdev
->stat
.byte_tx
+= urb
->transfer_buffer_length
;
553 spin_lock(&data
->txlock
);
554 data
->tx_in_flight
--;
555 spin_unlock(&data
->txlock
);
557 kfree(urb
->setup_packet
);
562 static void btusb_isoc_tx_complete(struct urb
*urb
)
564 struct sk_buff
*skb
= urb
->context
;
565 struct hci_dev
*hdev
= (struct hci_dev
*) skb
->dev
;
567 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
568 urb
, urb
->status
, urb
->actual_length
);
570 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
574 hdev
->stat
.byte_tx
+= urb
->transfer_buffer_length
;
579 kfree(urb
->setup_packet
);
584 static int btusb_open(struct hci_dev
*hdev
)
586 struct btusb_data
*data
= hdev
->driver_data
;
589 BT_DBG("%s", hdev
->name
);
591 err
= usb_autopm_get_interface(data
->intf
);
595 data
->intf
->needs_remote_wakeup
= 1;
597 if (test_and_set_bit(HCI_RUNNING
, &hdev
->flags
))
600 if (test_and_set_bit(BTUSB_INTR_RUNNING
, &data
->flags
))
603 err
= btusb_submit_intr_urb(hdev
, GFP_KERNEL
);
607 err
= btusb_submit_bulk_urb(hdev
, GFP_KERNEL
);
609 usb_kill_anchored_urbs(&data
->intr_anchor
);
613 set_bit(BTUSB_BULK_RUNNING
, &data
->flags
);
614 btusb_submit_bulk_urb(hdev
, GFP_KERNEL
);
617 usb_autopm_put_interface(data
->intf
);
621 clear_bit(BTUSB_INTR_RUNNING
, &data
->flags
);
622 clear_bit(HCI_RUNNING
, &hdev
->flags
);
623 usb_autopm_put_interface(data
->intf
);
627 static void btusb_stop_traffic(struct btusb_data
*data
)
629 usb_kill_anchored_urbs(&data
->intr_anchor
);
630 usb_kill_anchored_urbs(&data
->bulk_anchor
);
631 usb_kill_anchored_urbs(&data
->isoc_anchor
);
634 static int btusb_close(struct hci_dev
*hdev
)
636 struct btusb_data
*data
= hdev
->driver_data
;
639 BT_DBG("%s", hdev
->name
);
641 if (!test_and_clear_bit(HCI_RUNNING
, &hdev
->flags
))
644 cancel_work_sync(&data
->work
);
645 cancel_work_sync(&data
->waker
);
647 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
648 clear_bit(BTUSB_BULK_RUNNING
, &data
->flags
);
649 clear_bit(BTUSB_INTR_RUNNING
, &data
->flags
);
651 btusb_stop_traffic(data
);
652 err
= usb_autopm_get_interface(data
->intf
);
656 data
->intf
->needs_remote_wakeup
= 0;
657 usb_autopm_put_interface(data
->intf
);
660 usb_scuttle_anchored_urbs(&data
->deferred
);
664 static int btusb_flush(struct hci_dev
*hdev
)
666 struct btusb_data
*data
= hdev
->driver_data
;
668 BT_DBG("%s", hdev
->name
);
670 usb_kill_anchored_urbs(&data
->tx_anchor
);
675 static int btusb_send_frame(struct sk_buff
*skb
)
677 struct hci_dev
*hdev
= (struct hci_dev
*) skb
->dev
;
678 struct btusb_data
*data
= hdev
->driver_data
;
679 struct usb_ctrlrequest
*dr
;
684 BT_DBG("%s", hdev
->name
);
686 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
689 switch (bt_cb(skb
)->pkt_type
) {
690 case HCI_COMMAND_PKT
:
691 urb
= usb_alloc_urb(0, GFP_ATOMIC
);
695 dr
= kmalloc(sizeof(*dr
), GFP_ATOMIC
);
701 dr
->bRequestType
= data
->cmdreq_type
;
705 dr
->wLength
= __cpu_to_le16(skb
->len
);
707 pipe
= usb_sndctrlpipe(data
->udev
, 0x00);
709 usb_fill_control_urb(urb
, data
->udev
, pipe
, (void *) dr
,
710 skb
->data
, skb
->len
, btusb_tx_complete
, skb
);
715 case HCI_ACLDATA_PKT
:
716 if (!data
->bulk_tx_ep
)
719 urb
= usb_alloc_urb(0, GFP_ATOMIC
);
723 pipe
= usb_sndbulkpipe(data
->udev
,
724 data
->bulk_tx_ep
->bEndpointAddress
);
726 usb_fill_bulk_urb(urb
, data
->udev
, pipe
,
727 skb
->data
, skb
->len
, btusb_tx_complete
, skb
);
729 if (skb
->priority
>= HCI_PRIO_MAX
- 1)
730 urb
->transfer_flags
= URB_ISO_ASAP
;
735 case HCI_SCODATA_PKT
:
736 if (!data
->isoc_tx_ep
|| hdev
->conn_hash
.sco_num
< 1)
739 urb
= usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES
, GFP_ATOMIC
);
743 pipe
= usb_sndisocpipe(data
->udev
,
744 data
->isoc_tx_ep
->bEndpointAddress
);
746 usb_fill_int_urb(urb
, data
->udev
, pipe
,
747 skb
->data
, skb
->len
, btusb_isoc_tx_complete
,
748 skb
, data
->isoc_tx_ep
->bInterval
);
750 urb
->transfer_flags
= URB_ISO_ASAP
;
752 __fill_isoc_descriptor(urb
, skb
->len
,
753 le16_to_cpu(data
->isoc_tx_ep
->wMaxPacketSize
));
764 usb_anchor_urb(urb
, &data
->deferred
);
765 schedule_work(&data
->waker
);
771 usb_anchor_urb(urb
, &data
->tx_anchor
);
773 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
775 if (err
!= -EPERM
&& err
!= -ENODEV
)
776 BT_ERR("%s urb %p submission failed (%d)",
777 hdev
->name
, urb
, -err
);
778 kfree(urb
->setup_packet
);
779 usb_unanchor_urb(urb
);
781 usb_mark_last_busy(data
->udev
);
789 static void btusb_destruct(struct hci_dev
*hdev
)
791 struct btusb_data
*data
= hdev
->driver_data
;
793 BT_DBG("%s", hdev
->name
);
798 static void btusb_notify(struct hci_dev
*hdev
, unsigned int evt
)
800 struct btusb_data
*data
= hdev
->driver_data
;
802 BT_DBG("%s evt %d", hdev
->name
, evt
);
804 if (hdev
->conn_hash
.sco_num
!= data
->sco_num
) {
805 data
->sco_num
= hdev
->conn_hash
.sco_num
;
806 schedule_work(&data
->work
);
810 static inline int __set_isoc_interface(struct hci_dev
*hdev
, int altsetting
)
812 struct btusb_data
*data
= hdev
->driver_data
;
813 struct usb_interface
*intf
= data
->isoc
;
814 struct usb_endpoint_descriptor
*ep_desc
;
820 err
= usb_set_interface(data
->udev
, 1, altsetting
);
822 BT_ERR("%s setting interface failed (%d)", hdev
->name
, -err
);
826 data
->isoc_altsetting
= altsetting
;
828 data
->isoc_tx_ep
= NULL
;
829 data
->isoc_rx_ep
= NULL
;
831 for (i
= 0; i
< intf
->cur_altsetting
->desc
.bNumEndpoints
; i
++) {
832 ep_desc
= &intf
->cur_altsetting
->endpoint
[i
].desc
;
834 if (!data
->isoc_tx_ep
&& usb_endpoint_is_isoc_out(ep_desc
)) {
835 data
->isoc_tx_ep
= ep_desc
;
839 if (!data
->isoc_rx_ep
&& usb_endpoint_is_isoc_in(ep_desc
)) {
840 data
->isoc_rx_ep
= ep_desc
;
845 if (!data
->isoc_tx_ep
|| !data
->isoc_rx_ep
) {
846 BT_ERR("%s invalid SCO descriptors", hdev
->name
);
853 static void btusb_work(struct work_struct
*work
)
855 struct btusb_data
*data
= container_of(work
, struct btusb_data
, work
);
856 struct hci_dev
*hdev
= data
->hdev
;
859 if (hdev
->conn_hash
.sco_num
> 0) {
860 if (!test_bit(BTUSB_DID_ISO_RESUME
, &data
->flags
)) {
861 err
= usb_autopm_get_interface(data
->isoc
? data
->isoc
: data
->intf
);
863 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
864 usb_kill_anchored_urbs(&data
->isoc_anchor
);
868 set_bit(BTUSB_DID_ISO_RESUME
, &data
->flags
);
870 if (data
->isoc_altsetting
!= 2) {
871 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
872 usb_kill_anchored_urbs(&data
->isoc_anchor
);
874 if (__set_isoc_interface(hdev
, 2) < 0)
878 if (!test_and_set_bit(BTUSB_ISOC_RUNNING
, &data
->flags
)) {
879 if (btusb_submit_isoc_urb(hdev
, GFP_KERNEL
) < 0)
880 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
882 btusb_submit_isoc_urb(hdev
, GFP_KERNEL
);
885 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
886 usb_kill_anchored_urbs(&data
->isoc_anchor
);
888 __set_isoc_interface(hdev
, 0);
889 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME
, &data
->flags
))
890 usb_autopm_put_interface(data
->isoc
? data
->isoc
: data
->intf
);
894 static void btusb_waker(struct work_struct
*work
)
896 struct btusb_data
*data
= container_of(work
, struct btusb_data
, waker
);
899 err
= usb_autopm_get_interface(data
->intf
);
903 usb_autopm_put_interface(data
->intf
);
906 static int btusb_probe(struct usb_interface
*intf
,
907 const struct usb_device_id
*id
)
909 struct usb_endpoint_descriptor
*ep_desc
;
910 struct btusb_data
*data
;
911 struct hci_dev
*hdev
;
914 BT_DBG("intf %p id %p", intf
, id
);
916 /* interface numbers are hardcoded in the spec */
917 if (intf
->cur_altsetting
->desc
.bInterfaceNumber
!= 0)
920 if (!id
->driver_info
) {
921 const struct usb_device_id
*match
;
922 match
= usb_match_id(intf
, blacklist_table
);
927 if (id
->driver_info
== BTUSB_IGNORE
)
930 if (ignore_dga
&& id
->driver_info
& BTUSB_DIGIANSWER
)
933 if (ignore_csr
&& id
->driver_info
& BTUSB_CSR
)
936 if (ignore_sniffer
&& id
->driver_info
& BTUSB_SNIFFER
)
939 if (id
->driver_info
& BTUSB_ATH3012
) {
940 struct usb_device
*udev
= interface_to_usbdev(intf
);
942 /* Old firmware would otherwise let ath3k driver load
943 * patch and sysconfig files */
944 if (le16_to_cpu(udev
->descriptor
.bcdDevice
) <= 0x0001)
948 data
= kzalloc(sizeof(*data
), GFP_KERNEL
);
952 for (i
= 0; i
< intf
->cur_altsetting
->desc
.bNumEndpoints
; i
++) {
953 ep_desc
= &intf
->cur_altsetting
->endpoint
[i
].desc
;
955 if (!data
->intr_ep
&& usb_endpoint_is_int_in(ep_desc
)) {
956 data
->intr_ep
= ep_desc
;
960 if (!data
->bulk_tx_ep
&& usb_endpoint_is_bulk_out(ep_desc
)) {
961 data
->bulk_tx_ep
= ep_desc
;
965 if (!data
->bulk_rx_ep
&& usb_endpoint_is_bulk_in(ep_desc
)) {
966 data
->bulk_rx_ep
= ep_desc
;
971 if (!data
->intr_ep
|| !data
->bulk_tx_ep
|| !data
->bulk_rx_ep
) {
976 data
->cmdreq_type
= USB_TYPE_CLASS
;
978 data
->udev
= interface_to_usbdev(intf
);
981 spin_lock_init(&data
->lock
);
983 INIT_WORK(&data
->work
, btusb_work
);
984 INIT_WORK(&data
->waker
, btusb_waker
);
985 spin_lock_init(&data
->txlock
);
987 init_usb_anchor(&data
->tx_anchor
);
988 init_usb_anchor(&data
->intr_anchor
);
989 init_usb_anchor(&data
->bulk_anchor
);
990 init_usb_anchor(&data
->isoc_anchor
);
991 init_usb_anchor(&data
->deferred
);
993 hdev
= hci_alloc_dev();
1000 hdev
->driver_data
= data
;
1004 SET_HCIDEV_DEV(hdev
, &intf
->dev
);
1006 hdev
->open
= btusb_open
;
1007 hdev
->close
= btusb_close
;
1008 hdev
->flush
= btusb_flush
;
1009 hdev
->send
= btusb_send_frame
;
1010 hdev
->destruct
= btusb_destruct
;
1011 hdev
->notify
= btusb_notify
;
1013 hdev
->owner
= THIS_MODULE
;
1015 /* Interface numbers are hardcoded in the specification */
1016 data
->isoc
= usb_ifnum_to_if(data
->udev
, 1);
1019 set_bit(HCI_QUIRK_NO_RESET
, &hdev
->quirks
);
1021 if (force_scofix
|| id
->driver_info
& BTUSB_WRONG_SCO_MTU
) {
1022 if (!disable_scofix
)
1023 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE
, &hdev
->quirks
);
1026 if (id
->driver_info
& BTUSB_BROKEN_ISOC
)
1029 if (id
->driver_info
& BTUSB_DIGIANSWER
) {
1030 data
->cmdreq_type
= USB_TYPE_VENDOR
;
1031 set_bit(HCI_QUIRK_NO_RESET
, &hdev
->quirks
);
1034 if (id
->driver_info
& BTUSB_CSR
) {
1035 struct usb_device
*udev
= data
->udev
;
1037 /* Old firmware would otherwise execute USB reset */
1038 if (le16_to_cpu(udev
->descriptor
.bcdDevice
) < 0x117)
1039 set_bit(HCI_QUIRK_NO_RESET
, &hdev
->quirks
);
1042 if (id
->driver_info
& BTUSB_SNIFFER
) {
1043 struct usb_device
*udev
= data
->udev
;
1045 /* New sniffer firmware has crippled HCI interface */
1046 if (le16_to_cpu(udev
->descriptor
.bcdDevice
) > 0x997)
1047 set_bit(HCI_QUIRK_RAW_DEVICE
, &hdev
->quirks
);
1052 if (id
->driver_info
& BTUSB_BCM92035
) {
1053 unsigned char cmd
[] = { 0x3b, 0xfc, 0x01, 0x00 };
1054 struct sk_buff
*skb
;
1056 skb
= bt_skb_alloc(sizeof(cmd
), GFP_KERNEL
);
1058 memcpy(skb_put(skb
, sizeof(cmd
)), cmd
, sizeof(cmd
));
1059 skb_queue_tail(&hdev
->driver_init
, skb
);
1064 err
= usb_driver_claim_interface(&btusb_driver
,
1073 err
= hci_register_dev(hdev
);
1080 usb_set_intfdata(intf
, data
);
1085 static void btusb_disconnect(struct usb_interface
*intf
)
1087 struct btusb_data
*data
= usb_get_intfdata(intf
);
1088 struct hci_dev
*hdev
;
1090 BT_DBG("intf %p", intf
);
1097 __hci_dev_hold(hdev
);
1099 usb_set_intfdata(data
->intf
, NULL
);
1102 usb_set_intfdata(data
->isoc
, NULL
);
1104 hci_unregister_dev(hdev
);
1106 if (intf
== data
->isoc
)
1107 usb_driver_release_interface(&btusb_driver
, data
->intf
);
1108 else if (data
->isoc
)
1109 usb_driver_release_interface(&btusb_driver
, data
->isoc
);
1111 __hci_dev_put(hdev
);
1117 static int btusb_suspend(struct usb_interface
*intf
, pm_message_t message
)
1119 struct btusb_data
*data
= usb_get_intfdata(intf
);
1121 BT_DBG("intf %p", intf
);
1123 if (data
->suspend_count
++)
1126 spin_lock_irq(&data
->txlock
);
1127 if (!(PMSG_IS_AUTO(message
) && data
->tx_in_flight
)) {
1128 set_bit(BTUSB_SUSPENDING
, &data
->flags
);
1129 spin_unlock_irq(&data
->txlock
);
1131 spin_unlock_irq(&data
->txlock
);
1132 data
->suspend_count
--;
1136 cancel_work_sync(&data
->work
);
1138 btusb_stop_traffic(data
);
1139 usb_kill_anchored_urbs(&data
->tx_anchor
);
1144 static void play_deferred(struct btusb_data
*data
)
1149 while ((urb
= usb_get_from_anchor(&data
->deferred
))) {
1150 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
1154 data
->tx_in_flight
++;
1156 usb_scuttle_anchored_urbs(&data
->deferred
);
1159 static int btusb_resume(struct usb_interface
*intf
)
1161 struct btusb_data
*data
= usb_get_intfdata(intf
);
1162 struct hci_dev
*hdev
= data
->hdev
;
1165 BT_DBG("intf %p", intf
);
1167 if (--data
->suspend_count
)
1170 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
1173 if (test_bit(BTUSB_INTR_RUNNING
, &data
->flags
)) {
1174 err
= btusb_submit_intr_urb(hdev
, GFP_NOIO
);
1176 clear_bit(BTUSB_INTR_RUNNING
, &data
->flags
);
1181 if (test_bit(BTUSB_BULK_RUNNING
, &data
->flags
)) {
1182 err
= btusb_submit_bulk_urb(hdev
, GFP_NOIO
);
1184 clear_bit(BTUSB_BULK_RUNNING
, &data
->flags
);
1188 btusb_submit_bulk_urb(hdev
, GFP_NOIO
);
1191 if (test_bit(BTUSB_ISOC_RUNNING
, &data
->flags
)) {
1192 if (btusb_submit_isoc_urb(hdev
, GFP_NOIO
) < 0)
1193 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
1195 btusb_submit_isoc_urb(hdev
, GFP_NOIO
);
1198 spin_lock_irq(&data
->txlock
);
1199 play_deferred(data
);
1200 clear_bit(BTUSB_SUSPENDING
, &data
->flags
);
1201 spin_unlock_irq(&data
->txlock
);
1202 schedule_work(&data
->work
);
1207 usb_scuttle_anchored_urbs(&data
->deferred
);
1209 spin_lock_irq(&data
->txlock
);
1210 clear_bit(BTUSB_SUSPENDING
, &data
->flags
);
1211 spin_unlock_irq(&data
->txlock
);
1217 static struct usb_driver btusb_driver
= {
1219 .probe
= btusb_probe
,
1220 .disconnect
= btusb_disconnect
,
1222 .suspend
= btusb_suspend
,
1223 .resume
= btusb_resume
,
1225 .id_table
= btusb_table
,
1226 .supports_autosuspend
= 1,
1229 module_usb_driver(btusb_driver
);
1231 module_param(ignore_dga
, bool, 0644);
1232 MODULE_PARM_DESC(ignore_dga
, "Ignore devices with id 08fd:0001");
1234 module_param(ignore_csr
, bool, 0644);
1235 MODULE_PARM_DESC(ignore_csr
, "Ignore devices with id 0a12:0001");
1237 module_param(ignore_sniffer
, bool, 0644);
1238 MODULE_PARM_DESC(ignore_sniffer
, "Ignore devices with id 0a12:0002");
1240 module_param(disable_scofix
, bool, 0644);
1241 MODULE_PARM_DESC(disable_scofix
, "Disable fixup of wrong SCO buffer size");
1243 module_param(force_scofix
, bool, 0644);
1244 MODULE_PARM_DESC(force_scofix
, "Force fixup of wrong SCO buffers size");
1246 module_param(reset
, bool, 0644);
1247 MODULE_PARM_DESC(reset
, "Send HCI reset command on initialization");
1249 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1250 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION
);
1251 MODULE_VERSION(VERSION
);
1252 MODULE_LICENSE("GPL");