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/module.h>
25 #include <linux/usb.h>
27 #include <net/bluetooth/bluetooth.h>
28 #include <net/bluetooth/hci_core.h>
32 static bool ignore_dga
;
33 static bool ignore_csr
;
34 static bool ignore_sniffer
;
35 static bool disable_scofix
;
36 static bool force_scofix
;
38 static bool reset
= 1;
40 static struct usb_driver btusb_driver
;
42 #define BTUSB_IGNORE 0x01
43 #define BTUSB_DIGIANSWER 0x02
44 #define BTUSB_CSR 0x04
45 #define BTUSB_SNIFFER 0x08
46 #define BTUSB_BCM92035 0x10
47 #define BTUSB_BROKEN_ISOC 0x20
48 #define BTUSB_WRONG_SCO_MTU 0x40
49 #define BTUSB_ATH3012 0x80
51 static struct usb_device_id btusb_table
[] = {
52 /* Generic Bluetooth USB device */
53 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
55 /* Apple-specific (Broadcom) devices */
56 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01) },
58 /* Broadcom SoftSailing reporting vendor specific */
59 { USB_DEVICE(0x0a5c, 0x21e1) },
61 /* Apple MacBookPro 7,1 */
62 { USB_DEVICE(0x05ac, 0x8213) },
65 { USB_DEVICE(0x05ac, 0x8215) },
67 /* Apple MacBookPro6,2 */
68 { USB_DEVICE(0x05ac, 0x8218) },
70 /* Apple MacBookAir3,1, MacBookAir3,2 */
71 { USB_DEVICE(0x05ac, 0x821b) },
73 /* Apple MacBookAir4,1 */
74 { USB_DEVICE(0x05ac, 0x821f) },
76 /* Apple MacBookPro8,2 */
77 { USB_DEVICE(0x05ac, 0x821a) },
79 /* Apple MacMini5,1 */
80 { USB_DEVICE(0x05ac, 0x8281) },
82 /* AVM BlueFRITZ! USB v2.0 */
83 { USB_DEVICE(0x057c, 0x3800) },
85 /* Bluetooth Ultraport Module from IBM */
86 { USB_DEVICE(0x04bf, 0x030a) },
88 /* ALPS Modules with non-standard id */
89 { USB_DEVICE(0x044e, 0x3001) },
90 { USB_DEVICE(0x044e, 0x3002) },
92 /* Ericsson with non-standard id */
93 { USB_DEVICE(0x0bdb, 0x1002) },
95 /* Canyon CN-BTU1 with HID interfaces */
96 { USB_DEVICE(0x0c10, 0x0000) },
98 /* Broadcom BCM20702A0 */
99 { USB_DEVICE(0x0b05, 0x17b5) },
100 { USB_DEVICE(0x04ca, 0x2003) },
101 { USB_DEVICE(0x0489, 0xe042) },
102 { USB_DEVICE(0x413c, 0x8197) },
104 /* Foxconn - Hon Hai */
105 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01) },
107 /*Broadcom devices with vendor specific id */
108 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01) },
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(0x0cf3, 0xe019), .driver_info
= BTUSB_IGNORE
},
125 { USB_DEVICE(0x13d3, 0x3304), .driver_info
= BTUSB_IGNORE
},
126 { USB_DEVICE(0x0930, 0x0215), .driver_info
= BTUSB_IGNORE
},
127 { USB_DEVICE(0x0489, 0xe03d), .driver_info
= BTUSB_IGNORE
},
128 { USB_DEVICE(0x0489, 0xe027), .driver_info
= BTUSB_IGNORE
},
130 /* Atheros AR9285 Malbec with sflash firmware */
131 { USB_DEVICE(0x03f0, 0x311d), .driver_info
= BTUSB_IGNORE
},
133 /* Atheros 3012 with sflash firmware */
134 { USB_DEVICE(0x0cf3, 0x0036), .driver_info
= BTUSB_ATH3012
},
135 { USB_DEVICE(0x0cf3, 0x3004), .driver_info
= BTUSB_ATH3012
},
136 { USB_DEVICE(0x0cf3, 0x3008), .driver_info
= BTUSB_ATH3012
},
137 { USB_DEVICE(0x0cf3, 0x311d), .driver_info
= BTUSB_ATH3012
},
138 { USB_DEVICE(0x0cf3, 0x817a), .driver_info
= BTUSB_ATH3012
},
139 { USB_DEVICE(0x13d3, 0x3375), .driver_info
= BTUSB_ATH3012
},
140 { USB_DEVICE(0x04ca, 0x3004), .driver_info
= BTUSB_ATH3012
},
141 { USB_DEVICE(0x04ca, 0x3005), .driver_info
= BTUSB_ATH3012
},
142 { USB_DEVICE(0x04ca, 0x3006), .driver_info
= BTUSB_ATH3012
},
143 { USB_DEVICE(0x04ca, 0x3008), .driver_info
= BTUSB_ATH3012
},
144 { USB_DEVICE(0x13d3, 0x3362), .driver_info
= BTUSB_ATH3012
},
145 { USB_DEVICE(0x0cf3, 0xe004), .driver_info
= BTUSB_ATH3012
},
146 { USB_DEVICE(0x0930, 0x0219), .driver_info
= BTUSB_ATH3012
},
147 { USB_DEVICE(0x0489, 0xe057), .driver_info
= BTUSB_ATH3012
},
148 { USB_DEVICE(0x13d3, 0x3393), .driver_info
= BTUSB_ATH3012
},
149 { USB_DEVICE(0x0489, 0xe04e), .driver_info
= BTUSB_ATH3012
},
150 { USB_DEVICE(0x0489, 0xe056), .driver_info
= BTUSB_ATH3012
},
152 /* Atheros AR5BBU12 with sflash firmware */
153 { USB_DEVICE(0x0489, 0xe02c), .driver_info
= BTUSB_IGNORE
},
155 /* Atheros AR5BBU12 with sflash firmware */
156 { USB_DEVICE(0x0489, 0xe03c), .driver_info
= BTUSB_ATH3012
},
157 { USB_DEVICE(0x0489, 0xe036), .driver_info
= BTUSB_ATH3012
},
159 /* Broadcom BCM2035 */
160 { USB_DEVICE(0x0a5c, 0x2035), .driver_info
= BTUSB_WRONG_SCO_MTU
},
161 { USB_DEVICE(0x0a5c, 0x200a), .driver_info
= BTUSB_WRONG_SCO_MTU
},
162 { USB_DEVICE(0x0a5c, 0x2009), .driver_info
= BTUSB_BCM92035
},
164 /* Broadcom BCM2045 */
165 { USB_DEVICE(0x0a5c, 0x2039), .driver_info
= BTUSB_WRONG_SCO_MTU
},
166 { USB_DEVICE(0x0a5c, 0x2101), .driver_info
= BTUSB_WRONG_SCO_MTU
},
168 /* IBM/Lenovo ThinkPad with Broadcom chip */
169 { USB_DEVICE(0x0a5c, 0x201e), .driver_info
= BTUSB_WRONG_SCO_MTU
},
170 { USB_DEVICE(0x0a5c, 0x2110), .driver_info
= BTUSB_WRONG_SCO_MTU
},
172 /* HP laptop with Broadcom chip */
173 { USB_DEVICE(0x03f0, 0x171d), .driver_info
= BTUSB_WRONG_SCO_MTU
},
175 /* Dell laptop with Broadcom chip */
176 { USB_DEVICE(0x413c, 0x8126), .driver_info
= BTUSB_WRONG_SCO_MTU
},
178 /* Dell Wireless 370 and 410 devices */
179 { USB_DEVICE(0x413c, 0x8152), .driver_info
= BTUSB_WRONG_SCO_MTU
},
180 { USB_DEVICE(0x413c, 0x8156), .driver_info
= BTUSB_WRONG_SCO_MTU
},
182 /* Belkin F8T012 and F8T013 devices */
183 { USB_DEVICE(0x050d, 0x0012), .driver_info
= BTUSB_WRONG_SCO_MTU
},
184 { USB_DEVICE(0x050d, 0x0013), .driver_info
= BTUSB_WRONG_SCO_MTU
},
186 /* Asus WL-BTD202 device */
187 { USB_DEVICE(0x0b05, 0x1715), .driver_info
= BTUSB_WRONG_SCO_MTU
},
189 /* Kensington Bluetooth USB adapter */
190 { USB_DEVICE(0x047d, 0x105e), .driver_info
= BTUSB_WRONG_SCO_MTU
},
192 /* RTX Telecom based adapters with buggy SCO support */
193 { USB_DEVICE(0x0400, 0x0807), .driver_info
= BTUSB_BROKEN_ISOC
},
194 { USB_DEVICE(0x0400, 0x080a), .driver_info
= BTUSB_BROKEN_ISOC
},
196 /* CONWISE Technology based adapters with buggy SCO support */
197 { USB_DEVICE(0x0e5e, 0x6622), .driver_info
= BTUSB_BROKEN_ISOC
},
199 /* Digianswer devices */
200 { USB_DEVICE(0x08fd, 0x0001), .driver_info
= BTUSB_DIGIANSWER
},
201 { USB_DEVICE(0x08fd, 0x0002), .driver_info
= BTUSB_IGNORE
},
203 /* CSR BlueCore Bluetooth Sniffer */
204 { USB_DEVICE(0x0a12, 0x0002), .driver_info
= BTUSB_SNIFFER
},
206 /* Frontline ComProbe Bluetooth Sniffer */
207 { USB_DEVICE(0x16d3, 0x0002), .driver_info
= BTUSB_SNIFFER
},
209 { } /* Terminating entry */
212 #define BTUSB_MAX_ISOC_FRAMES 10
214 #define BTUSB_INTR_RUNNING 0
215 #define BTUSB_BULK_RUNNING 1
216 #define BTUSB_ISOC_RUNNING 2
217 #define BTUSB_SUSPENDING 3
218 #define BTUSB_DID_ISO_RESUME 4
221 struct hci_dev
*hdev
;
222 struct usb_device
*udev
;
223 struct usb_interface
*intf
;
224 struct usb_interface
*isoc
;
230 struct work_struct work
;
231 struct work_struct waker
;
233 struct usb_anchor tx_anchor
;
234 struct usb_anchor intr_anchor
;
235 struct usb_anchor bulk_anchor
;
236 struct usb_anchor isoc_anchor
;
237 struct usb_anchor deferred
;
241 struct usb_endpoint_descriptor
*intr_ep
;
242 struct usb_endpoint_descriptor
*bulk_tx_ep
;
243 struct usb_endpoint_descriptor
*bulk_rx_ep
;
244 struct usb_endpoint_descriptor
*isoc_tx_ep
;
245 struct usb_endpoint_descriptor
*isoc_rx_ep
;
249 unsigned int sco_num
;
254 static int inc_tx(struct btusb_data
*data
)
259 spin_lock_irqsave(&data
->txlock
, flags
);
260 rv
= test_bit(BTUSB_SUSPENDING
, &data
->flags
);
262 data
->tx_in_flight
++;
263 spin_unlock_irqrestore(&data
->txlock
, flags
);
268 static void btusb_intr_complete(struct urb
*urb
)
270 struct hci_dev
*hdev
= urb
->context
;
271 struct btusb_data
*data
= hci_get_drvdata(hdev
);
274 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
275 urb
, urb
->status
, urb
->actual_length
);
277 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
280 if (urb
->status
== 0) {
281 hdev
->stat
.byte_rx
+= urb
->actual_length
;
283 if (hci_recv_fragment(hdev
, HCI_EVENT_PKT
,
284 urb
->transfer_buffer
,
285 urb
->actual_length
) < 0) {
286 BT_ERR("%s corrupted event packet", hdev
->name
);
291 if (!test_bit(BTUSB_INTR_RUNNING
, &data
->flags
))
294 usb_mark_last_busy(data
->udev
);
295 usb_anchor_urb(urb
, &data
->intr_anchor
);
297 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
299 /* -EPERM: urb is being killed;
300 * -ENODEV: device got disconnected */
301 if (err
!= -EPERM
&& err
!= -ENODEV
)
302 BT_ERR("%s urb %p failed to resubmit (%d)",
303 hdev
->name
, urb
, -err
);
304 usb_unanchor_urb(urb
);
308 static int btusb_submit_intr_urb(struct hci_dev
*hdev
, gfp_t mem_flags
)
310 struct btusb_data
*data
= hci_get_drvdata(hdev
);
316 BT_DBG("%s", hdev
->name
);
321 urb
= usb_alloc_urb(0, mem_flags
);
325 size
= le16_to_cpu(data
->intr_ep
->wMaxPacketSize
);
327 buf
= kmalloc(size
, mem_flags
);
333 pipe
= usb_rcvintpipe(data
->udev
, data
->intr_ep
->bEndpointAddress
);
335 usb_fill_int_urb(urb
, data
->udev
, pipe
, buf
, size
,
336 btusb_intr_complete
, hdev
,
337 data
->intr_ep
->bInterval
);
339 urb
->transfer_flags
|= URB_FREE_BUFFER
;
341 usb_anchor_urb(urb
, &data
->intr_anchor
);
343 err
= usb_submit_urb(urb
, mem_flags
);
345 if (err
!= -EPERM
&& err
!= -ENODEV
)
346 BT_ERR("%s urb %p submission failed (%d)",
347 hdev
->name
, urb
, -err
);
348 usb_unanchor_urb(urb
);
356 static void btusb_bulk_complete(struct urb
*urb
)
358 struct hci_dev
*hdev
= urb
->context
;
359 struct btusb_data
*data
= hci_get_drvdata(hdev
);
362 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
363 urb
, urb
->status
, urb
->actual_length
);
365 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
368 if (urb
->status
== 0) {
369 hdev
->stat
.byte_rx
+= urb
->actual_length
;
371 if (hci_recv_fragment(hdev
, HCI_ACLDATA_PKT
,
372 urb
->transfer_buffer
,
373 urb
->actual_length
) < 0) {
374 BT_ERR("%s corrupted ACL packet", hdev
->name
);
379 if (!test_bit(BTUSB_BULK_RUNNING
, &data
->flags
))
382 usb_anchor_urb(urb
, &data
->bulk_anchor
);
383 usb_mark_last_busy(data
->udev
);
385 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
387 /* -EPERM: urb is being killed;
388 * -ENODEV: device got disconnected */
389 if (err
!= -EPERM
&& err
!= -ENODEV
)
390 BT_ERR("%s urb %p failed to resubmit (%d)",
391 hdev
->name
, urb
, -err
);
392 usb_unanchor_urb(urb
);
396 static int btusb_submit_bulk_urb(struct hci_dev
*hdev
, gfp_t mem_flags
)
398 struct btusb_data
*data
= hci_get_drvdata(hdev
);
402 int err
, size
= HCI_MAX_FRAME_SIZE
;
404 BT_DBG("%s", hdev
->name
);
406 if (!data
->bulk_rx_ep
)
409 urb
= usb_alloc_urb(0, mem_flags
);
413 buf
= kmalloc(size
, mem_flags
);
419 pipe
= usb_rcvbulkpipe(data
->udev
, data
->bulk_rx_ep
->bEndpointAddress
);
421 usb_fill_bulk_urb(urb
, data
->udev
, pipe
,
422 buf
, size
, btusb_bulk_complete
, hdev
);
424 urb
->transfer_flags
|= URB_FREE_BUFFER
;
426 usb_mark_last_busy(data
->udev
);
427 usb_anchor_urb(urb
, &data
->bulk_anchor
);
429 err
= usb_submit_urb(urb
, mem_flags
);
431 if (err
!= -EPERM
&& err
!= -ENODEV
)
432 BT_ERR("%s urb %p submission failed (%d)",
433 hdev
->name
, urb
, -err
);
434 usb_unanchor_urb(urb
);
442 static void btusb_isoc_complete(struct urb
*urb
)
444 struct hci_dev
*hdev
= urb
->context
;
445 struct btusb_data
*data
= hci_get_drvdata(hdev
);
448 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
449 urb
, urb
->status
, urb
->actual_length
);
451 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
454 if (urb
->status
== 0) {
455 for (i
= 0; i
< urb
->number_of_packets
; i
++) {
456 unsigned int offset
= urb
->iso_frame_desc
[i
].offset
;
457 unsigned int length
= urb
->iso_frame_desc
[i
].actual_length
;
459 if (urb
->iso_frame_desc
[i
].status
)
462 hdev
->stat
.byte_rx
+= length
;
464 if (hci_recv_fragment(hdev
, HCI_SCODATA_PKT
,
465 urb
->transfer_buffer
+ offset
,
467 BT_ERR("%s corrupted SCO packet", hdev
->name
);
473 if (!test_bit(BTUSB_ISOC_RUNNING
, &data
->flags
))
476 usb_anchor_urb(urb
, &data
->isoc_anchor
);
478 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
480 /* -EPERM: urb is being killed;
481 * -ENODEV: device got disconnected */
482 if (err
!= -EPERM
&& err
!= -ENODEV
)
483 BT_ERR("%s urb %p failed to resubmit (%d)",
484 hdev
->name
, urb
, -err
);
485 usb_unanchor_urb(urb
);
489 static inline void __fill_isoc_descriptor(struct urb
*urb
, int len
, int mtu
)
493 BT_DBG("len %d mtu %d", len
, mtu
);
495 for (i
= 0; i
< BTUSB_MAX_ISOC_FRAMES
&& len
>= mtu
;
496 i
++, offset
+= mtu
, len
-= mtu
) {
497 urb
->iso_frame_desc
[i
].offset
= offset
;
498 urb
->iso_frame_desc
[i
].length
= mtu
;
501 if (len
&& i
< BTUSB_MAX_ISOC_FRAMES
) {
502 urb
->iso_frame_desc
[i
].offset
= offset
;
503 urb
->iso_frame_desc
[i
].length
= len
;
507 urb
->number_of_packets
= i
;
510 static int btusb_submit_isoc_urb(struct hci_dev
*hdev
, gfp_t mem_flags
)
512 struct btusb_data
*data
= hci_get_drvdata(hdev
);
518 BT_DBG("%s", hdev
->name
);
520 if (!data
->isoc_rx_ep
)
523 urb
= usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES
, mem_flags
);
527 size
= le16_to_cpu(data
->isoc_rx_ep
->wMaxPacketSize
) *
528 BTUSB_MAX_ISOC_FRAMES
;
530 buf
= kmalloc(size
, mem_flags
);
536 pipe
= usb_rcvisocpipe(data
->udev
, data
->isoc_rx_ep
->bEndpointAddress
);
538 usb_fill_int_urb(urb
, data
->udev
, pipe
, buf
, size
, btusb_isoc_complete
,
539 hdev
, data
->isoc_rx_ep
->bInterval
);
541 urb
->transfer_flags
= URB_FREE_BUFFER
| URB_ISO_ASAP
;
543 __fill_isoc_descriptor(urb
, size
,
544 le16_to_cpu(data
->isoc_rx_ep
->wMaxPacketSize
));
546 usb_anchor_urb(urb
, &data
->isoc_anchor
);
548 err
= usb_submit_urb(urb
, mem_flags
);
550 if (err
!= -EPERM
&& err
!= -ENODEV
)
551 BT_ERR("%s urb %p submission failed (%d)",
552 hdev
->name
, urb
, -err
);
553 usb_unanchor_urb(urb
);
561 static void btusb_tx_complete(struct urb
*urb
)
563 struct sk_buff
*skb
= urb
->context
;
564 struct hci_dev
*hdev
= (struct hci_dev
*) skb
->dev
;
565 struct btusb_data
*data
= hci_get_drvdata(hdev
);
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 spin_lock(&data
->txlock
);
580 data
->tx_in_flight
--;
581 spin_unlock(&data
->txlock
);
583 kfree(urb
->setup_packet
);
588 static void btusb_isoc_tx_complete(struct urb
*urb
)
590 struct sk_buff
*skb
= urb
->context
;
591 struct hci_dev
*hdev
= (struct hci_dev
*) skb
->dev
;
593 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
594 urb
, urb
->status
, urb
->actual_length
);
596 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
600 hdev
->stat
.byte_tx
+= urb
->transfer_buffer_length
;
605 kfree(urb
->setup_packet
);
610 static int btusb_open(struct hci_dev
*hdev
)
612 struct btusb_data
*data
= hci_get_drvdata(hdev
);
615 BT_DBG("%s", hdev
->name
);
617 err
= usb_autopm_get_interface(data
->intf
);
621 data
->intf
->needs_remote_wakeup
= 1;
623 if (test_and_set_bit(HCI_RUNNING
, &hdev
->flags
))
626 if (test_and_set_bit(BTUSB_INTR_RUNNING
, &data
->flags
))
629 err
= btusb_submit_intr_urb(hdev
, GFP_KERNEL
);
633 err
= btusb_submit_bulk_urb(hdev
, GFP_KERNEL
);
635 usb_kill_anchored_urbs(&data
->intr_anchor
);
639 set_bit(BTUSB_BULK_RUNNING
, &data
->flags
);
640 btusb_submit_bulk_urb(hdev
, GFP_KERNEL
);
643 usb_autopm_put_interface(data
->intf
);
647 clear_bit(BTUSB_INTR_RUNNING
, &data
->flags
);
648 clear_bit(HCI_RUNNING
, &hdev
->flags
);
649 usb_autopm_put_interface(data
->intf
);
653 static void btusb_stop_traffic(struct btusb_data
*data
)
655 usb_kill_anchored_urbs(&data
->intr_anchor
);
656 usb_kill_anchored_urbs(&data
->bulk_anchor
);
657 usb_kill_anchored_urbs(&data
->isoc_anchor
);
660 static int btusb_close(struct hci_dev
*hdev
)
662 struct btusb_data
*data
= hci_get_drvdata(hdev
);
665 BT_DBG("%s", hdev
->name
);
667 if (!test_and_clear_bit(HCI_RUNNING
, &hdev
->flags
))
670 cancel_work_sync(&data
->work
);
671 cancel_work_sync(&data
->waker
);
673 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
674 clear_bit(BTUSB_BULK_RUNNING
, &data
->flags
);
675 clear_bit(BTUSB_INTR_RUNNING
, &data
->flags
);
677 btusb_stop_traffic(data
);
678 err
= usb_autopm_get_interface(data
->intf
);
682 data
->intf
->needs_remote_wakeup
= 0;
683 usb_autopm_put_interface(data
->intf
);
686 usb_scuttle_anchored_urbs(&data
->deferred
);
690 static int btusb_flush(struct hci_dev
*hdev
)
692 struct btusb_data
*data
= hci_get_drvdata(hdev
);
694 BT_DBG("%s", hdev
->name
);
696 usb_kill_anchored_urbs(&data
->tx_anchor
);
701 static int btusb_send_frame(struct sk_buff
*skb
)
703 struct hci_dev
*hdev
= (struct hci_dev
*) skb
->dev
;
704 struct btusb_data
*data
= hci_get_drvdata(hdev
);
705 struct usb_ctrlrequest
*dr
;
710 BT_DBG("%s", hdev
->name
);
712 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
715 switch (bt_cb(skb
)->pkt_type
) {
716 case HCI_COMMAND_PKT
:
717 urb
= usb_alloc_urb(0, GFP_ATOMIC
);
721 dr
= kmalloc(sizeof(*dr
), GFP_ATOMIC
);
727 dr
->bRequestType
= data
->cmdreq_type
;
731 dr
->wLength
= __cpu_to_le16(skb
->len
);
733 pipe
= usb_sndctrlpipe(data
->udev
, 0x00);
735 usb_fill_control_urb(urb
, data
->udev
, pipe
, (void *) dr
,
736 skb
->data
, skb
->len
, btusb_tx_complete
, skb
);
741 case HCI_ACLDATA_PKT
:
742 if (!data
->bulk_tx_ep
)
745 urb
= usb_alloc_urb(0, GFP_ATOMIC
);
749 pipe
= usb_sndbulkpipe(data
->udev
,
750 data
->bulk_tx_ep
->bEndpointAddress
);
752 usb_fill_bulk_urb(urb
, data
->udev
, pipe
,
753 skb
->data
, skb
->len
, btusb_tx_complete
, skb
);
758 case HCI_SCODATA_PKT
:
759 if (!data
->isoc_tx_ep
|| hdev
->conn_hash
.sco_num
< 1)
762 urb
= usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES
, GFP_ATOMIC
);
766 pipe
= usb_sndisocpipe(data
->udev
,
767 data
->isoc_tx_ep
->bEndpointAddress
);
769 usb_fill_int_urb(urb
, data
->udev
, pipe
,
770 skb
->data
, skb
->len
, btusb_isoc_tx_complete
,
771 skb
, data
->isoc_tx_ep
->bInterval
);
773 urb
->transfer_flags
= URB_ISO_ASAP
;
775 __fill_isoc_descriptor(urb
, skb
->len
,
776 le16_to_cpu(data
->isoc_tx_ep
->wMaxPacketSize
));
787 usb_anchor_urb(urb
, &data
->deferred
);
788 schedule_work(&data
->waker
);
794 usb_anchor_urb(urb
, &data
->tx_anchor
);
796 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
798 if (err
!= -EPERM
&& err
!= -ENODEV
)
799 BT_ERR("%s urb %p submission failed (%d)",
800 hdev
->name
, urb
, -err
);
801 kfree(urb
->setup_packet
);
802 usb_unanchor_urb(urb
);
804 usb_mark_last_busy(data
->udev
);
812 static void btusb_notify(struct hci_dev
*hdev
, unsigned int evt
)
814 struct btusb_data
*data
= hci_get_drvdata(hdev
);
816 BT_DBG("%s evt %d", hdev
->name
, evt
);
818 if (hdev
->conn_hash
.sco_num
!= data
->sco_num
) {
819 data
->sco_num
= hdev
->conn_hash
.sco_num
;
820 schedule_work(&data
->work
);
824 static inline int __set_isoc_interface(struct hci_dev
*hdev
, int altsetting
)
826 struct btusb_data
*data
= hci_get_drvdata(hdev
);
827 struct usb_interface
*intf
= data
->isoc
;
828 struct usb_endpoint_descriptor
*ep_desc
;
834 err
= usb_set_interface(data
->udev
, 1, altsetting
);
836 BT_ERR("%s setting interface failed (%d)", hdev
->name
, -err
);
840 data
->isoc_altsetting
= altsetting
;
842 data
->isoc_tx_ep
= NULL
;
843 data
->isoc_rx_ep
= NULL
;
845 for (i
= 0; i
< intf
->cur_altsetting
->desc
.bNumEndpoints
; i
++) {
846 ep_desc
= &intf
->cur_altsetting
->endpoint
[i
].desc
;
848 if (!data
->isoc_tx_ep
&& usb_endpoint_is_isoc_out(ep_desc
)) {
849 data
->isoc_tx_ep
= ep_desc
;
853 if (!data
->isoc_rx_ep
&& usb_endpoint_is_isoc_in(ep_desc
)) {
854 data
->isoc_rx_ep
= ep_desc
;
859 if (!data
->isoc_tx_ep
|| !data
->isoc_rx_ep
) {
860 BT_ERR("%s invalid SCO descriptors", hdev
->name
);
867 static void btusb_work(struct work_struct
*work
)
869 struct btusb_data
*data
= container_of(work
, struct btusb_data
, work
);
870 struct hci_dev
*hdev
= data
->hdev
;
874 if (hdev
->conn_hash
.sco_num
> 0) {
875 if (!test_bit(BTUSB_DID_ISO_RESUME
, &data
->flags
)) {
876 err
= usb_autopm_get_interface(data
->isoc
? data
->isoc
: data
->intf
);
878 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
879 usb_kill_anchored_urbs(&data
->isoc_anchor
);
883 set_bit(BTUSB_DID_ISO_RESUME
, &data
->flags
);
886 if (hdev
->voice_setting
& 0x0020) {
887 static const int alts
[3] = { 2, 4, 5 };
888 new_alts
= alts
[hdev
->conn_hash
.sco_num
- 1];
890 new_alts
= hdev
->conn_hash
.sco_num
;
893 if (data
->isoc_altsetting
!= new_alts
) {
894 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
895 usb_kill_anchored_urbs(&data
->isoc_anchor
);
897 if (__set_isoc_interface(hdev
, new_alts
) < 0)
901 if (!test_and_set_bit(BTUSB_ISOC_RUNNING
, &data
->flags
)) {
902 if (btusb_submit_isoc_urb(hdev
, GFP_KERNEL
) < 0)
903 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
905 btusb_submit_isoc_urb(hdev
, GFP_KERNEL
);
908 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
909 usb_kill_anchored_urbs(&data
->isoc_anchor
);
911 __set_isoc_interface(hdev
, 0);
912 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME
, &data
->flags
))
913 usb_autopm_put_interface(data
->isoc
? data
->isoc
: data
->intf
);
917 static void btusb_waker(struct work_struct
*work
)
919 struct btusb_data
*data
= container_of(work
, struct btusb_data
, waker
);
922 err
= usb_autopm_get_interface(data
->intf
);
926 usb_autopm_put_interface(data
->intf
);
929 static int btusb_probe(struct usb_interface
*intf
,
930 const struct usb_device_id
*id
)
932 struct usb_endpoint_descriptor
*ep_desc
;
933 struct btusb_data
*data
;
934 struct hci_dev
*hdev
;
937 BT_DBG("intf %p id %p", intf
, id
);
939 /* interface numbers are hardcoded in the spec */
940 if (intf
->cur_altsetting
->desc
.bInterfaceNumber
!= 0)
943 if (!id
->driver_info
) {
944 const struct usb_device_id
*match
;
945 match
= usb_match_id(intf
, blacklist_table
);
950 if (id
->driver_info
== BTUSB_IGNORE
)
953 if (ignore_dga
&& id
->driver_info
& BTUSB_DIGIANSWER
)
956 if (ignore_csr
&& id
->driver_info
& BTUSB_CSR
)
959 if (ignore_sniffer
&& id
->driver_info
& BTUSB_SNIFFER
)
962 if (id
->driver_info
& BTUSB_ATH3012
) {
963 struct usb_device
*udev
= interface_to_usbdev(intf
);
965 /* Old firmware would otherwise let ath3k driver load
966 * patch and sysconfig files */
967 if (le16_to_cpu(udev
->descriptor
.bcdDevice
) <= 0x0001)
971 data
= devm_kzalloc(&intf
->dev
, sizeof(*data
), GFP_KERNEL
);
975 for (i
= 0; i
< intf
->cur_altsetting
->desc
.bNumEndpoints
; i
++) {
976 ep_desc
= &intf
->cur_altsetting
->endpoint
[i
].desc
;
978 if (!data
->intr_ep
&& usb_endpoint_is_int_in(ep_desc
)) {
979 data
->intr_ep
= ep_desc
;
983 if (!data
->bulk_tx_ep
&& usb_endpoint_is_bulk_out(ep_desc
)) {
984 data
->bulk_tx_ep
= ep_desc
;
988 if (!data
->bulk_rx_ep
&& usb_endpoint_is_bulk_in(ep_desc
)) {
989 data
->bulk_rx_ep
= ep_desc
;
994 if (!data
->intr_ep
|| !data
->bulk_tx_ep
|| !data
->bulk_rx_ep
)
997 data
->cmdreq_type
= USB_TYPE_CLASS
;
999 data
->udev
= interface_to_usbdev(intf
);
1002 spin_lock_init(&data
->lock
);
1004 INIT_WORK(&data
->work
, btusb_work
);
1005 INIT_WORK(&data
->waker
, btusb_waker
);
1006 spin_lock_init(&data
->txlock
);
1008 init_usb_anchor(&data
->tx_anchor
);
1009 init_usb_anchor(&data
->intr_anchor
);
1010 init_usb_anchor(&data
->bulk_anchor
);
1011 init_usb_anchor(&data
->isoc_anchor
);
1012 init_usb_anchor(&data
->deferred
);
1014 hdev
= hci_alloc_dev();
1018 hdev
->bus
= HCI_USB
;
1019 hci_set_drvdata(hdev
, data
);
1023 SET_HCIDEV_DEV(hdev
, &intf
->dev
);
1025 hdev
->open
= btusb_open
;
1026 hdev
->close
= btusb_close
;
1027 hdev
->flush
= btusb_flush
;
1028 hdev
->send
= btusb_send_frame
;
1029 hdev
->notify
= btusb_notify
;
1031 /* Interface numbers are hardcoded in the specification */
1032 data
->isoc
= usb_ifnum_to_if(data
->udev
, 1);
1035 set_bit(HCI_QUIRK_RESET_ON_CLOSE
, &hdev
->quirks
);
1037 if (force_scofix
|| id
->driver_info
& BTUSB_WRONG_SCO_MTU
) {
1038 if (!disable_scofix
)
1039 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE
, &hdev
->quirks
);
1042 if (id
->driver_info
& BTUSB_BROKEN_ISOC
)
1045 if (id
->driver_info
& BTUSB_DIGIANSWER
) {
1046 data
->cmdreq_type
= USB_TYPE_VENDOR
;
1047 set_bit(HCI_QUIRK_RESET_ON_CLOSE
, &hdev
->quirks
);
1050 if (id
->driver_info
& BTUSB_CSR
) {
1051 struct usb_device
*udev
= data
->udev
;
1053 /* Old firmware would otherwise execute USB reset */
1054 if (le16_to_cpu(udev
->descriptor
.bcdDevice
) < 0x117)
1055 set_bit(HCI_QUIRK_RESET_ON_CLOSE
, &hdev
->quirks
);
1058 if (id
->driver_info
& BTUSB_SNIFFER
) {
1059 struct usb_device
*udev
= data
->udev
;
1061 /* New sniffer firmware has crippled HCI interface */
1062 if (le16_to_cpu(udev
->descriptor
.bcdDevice
) > 0x997)
1063 set_bit(HCI_QUIRK_RAW_DEVICE
, &hdev
->quirks
);
1068 if (id
->driver_info
& BTUSB_BCM92035
) {
1069 unsigned char cmd
[] = { 0x3b, 0xfc, 0x01, 0x00 };
1070 struct sk_buff
*skb
;
1072 skb
= bt_skb_alloc(sizeof(cmd
), GFP_KERNEL
);
1074 memcpy(skb_put(skb
, sizeof(cmd
)), cmd
, sizeof(cmd
));
1075 skb_queue_tail(&hdev
->driver_init
, skb
);
1080 err
= usb_driver_claim_interface(&btusb_driver
,
1088 err
= hci_register_dev(hdev
);
1094 usb_set_intfdata(intf
, data
);
1099 static void btusb_disconnect(struct usb_interface
*intf
)
1101 struct btusb_data
*data
= usb_get_intfdata(intf
);
1102 struct hci_dev
*hdev
;
1104 BT_DBG("intf %p", intf
);
1110 usb_set_intfdata(data
->intf
, NULL
);
1113 usb_set_intfdata(data
->isoc
, NULL
);
1115 hci_unregister_dev(hdev
);
1117 if (intf
== data
->isoc
)
1118 usb_driver_release_interface(&btusb_driver
, data
->intf
);
1119 else if (data
->isoc
)
1120 usb_driver_release_interface(&btusb_driver
, data
->isoc
);
1126 static int btusb_suspend(struct usb_interface
*intf
, pm_message_t message
)
1128 struct btusb_data
*data
= usb_get_intfdata(intf
);
1130 BT_DBG("intf %p", intf
);
1132 if (data
->suspend_count
++)
1135 spin_lock_irq(&data
->txlock
);
1136 if (!(PMSG_IS_AUTO(message
) && data
->tx_in_flight
)) {
1137 set_bit(BTUSB_SUSPENDING
, &data
->flags
);
1138 spin_unlock_irq(&data
->txlock
);
1140 spin_unlock_irq(&data
->txlock
);
1141 data
->suspend_count
--;
1145 cancel_work_sync(&data
->work
);
1147 btusb_stop_traffic(data
);
1148 usb_kill_anchored_urbs(&data
->tx_anchor
);
1153 static void play_deferred(struct btusb_data
*data
)
1158 while ((urb
= usb_get_from_anchor(&data
->deferred
))) {
1159 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
1163 data
->tx_in_flight
++;
1165 usb_scuttle_anchored_urbs(&data
->deferred
);
1168 static int btusb_resume(struct usb_interface
*intf
)
1170 struct btusb_data
*data
= usb_get_intfdata(intf
);
1171 struct hci_dev
*hdev
= data
->hdev
;
1174 BT_DBG("intf %p", intf
);
1176 if (--data
->suspend_count
)
1179 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
1182 if (test_bit(BTUSB_INTR_RUNNING
, &data
->flags
)) {
1183 err
= btusb_submit_intr_urb(hdev
, GFP_NOIO
);
1185 clear_bit(BTUSB_INTR_RUNNING
, &data
->flags
);
1190 if (test_bit(BTUSB_BULK_RUNNING
, &data
->flags
)) {
1191 err
= btusb_submit_bulk_urb(hdev
, GFP_NOIO
);
1193 clear_bit(BTUSB_BULK_RUNNING
, &data
->flags
);
1197 btusb_submit_bulk_urb(hdev
, GFP_NOIO
);
1200 if (test_bit(BTUSB_ISOC_RUNNING
, &data
->flags
)) {
1201 if (btusb_submit_isoc_urb(hdev
, GFP_NOIO
) < 0)
1202 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
1204 btusb_submit_isoc_urb(hdev
, GFP_NOIO
);
1207 spin_lock_irq(&data
->txlock
);
1208 play_deferred(data
);
1209 clear_bit(BTUSB_SUSPENDING
, &data
->flags
);
1210 spin_unlock_irq(&data
->txlock
);
1211 schedule_work(&data
->work
);
1216 usb_scuttle_anchored_urbs(&data
->deferred
);
1218 spin_lock_irq(&data
->txlock
);
1219 clear_bit(BTUSB_SUSPENDING
, &data
->flags
);
1220 spin_unlock_irq(&data
->txlock
);
1226 static struct usb_driver btusb_driver
= {
1228 .probe
= btusb_probe
,
1229 .disconnect
= btusb_disconnect
,
1231 .suspend
= btusb_suspend
,
1232 .resume
= btusb_resume
,
1234 .id_table
= btusb_table
,
1235 .supports_autosuspend
= 1,
1236 .disable_hub_initiated_lpm
= 1,
1239 module_usb_driver(btusb_driver
);
1241 module_param(ignore_dga
, bool, 0644);
1242 MODULE_PARM_DESC(ignore_dga
, "Ignore devices with id 08fd:0001");
1244 module_param(ignore_csr
, bool, 0644);
1245 MODULE_PARM_DESC(ignore_csr
, "Ignore devices with id 0a12:0001");
1247 module_param(ignore_sniffer
, bool, 0644);
1248 MODULE_PARM_DESC(ignore_sniffer
, "Ignore devices with id 0a12:0002");
1250 module_param(disable_scofix
, bool, 0644);
1251 MODULE_PARM_DESC(disable_scofix
, "Disable fixup of wrong SCO buffer size");
1253 module_param(force_scofix
, bool, 0644);
1254 MODULE_PARM_DESC(force_scofix
, "Force fixup of wrong SCO buffers size");
1256 module_param(reset
, bool, 0644);
1257 MODULE_PARM_DESC(reset
, "Send HCI reset command on initialization");
1259 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1260 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION
);
1261 MODULE_VERSION(VERSION
);
1262 MODULE_LICENSE("GPL");