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>
26 #include <linux/firmware.h>
28 #include <net/bluetooth/bluetooth.h>
29 #include <net/bluetooth/hci_core.h>
33 static bool ignore_dga
;
34 static bool ignore_csr
;
35 static bool ignore_sniffer
;
36 static bool disable_scofix
;
37 static bool force_scofix
;
39 static bool reset
= 1;
41 static struct usb_driver btusb_driver
;
43 #define BTUSB_IGNORE 0x01
44 #define BTUSB_DIGIANSWER 0x02
45 #define BTUSB_CSR 0x04
46 #define BTUSB_SNIFFER 0x08
47 #define BTUSB_BCM92035 0x10
48 #define BTUSB_BROKEN_ISOC 0x20
49 #define BTUSB_WRONG_SCO_MTU 0x40
50 #define BTUSB_ATH3012 0x80
51 #define BTUSB_INTEL 0x100
53 static struct usb_device_id btusb_table
[] = {
54 /* Generic Bluetooth USB device */
55 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
57 /* Apple-specific (Broadcom) devices */
58 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01) },
60 /* MediaTek MT76x0E */
61 { USB_DEVICE(0x0e8d, 0x763f) },
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(0x0b05, 0x17b5) },
105 { USB_DEVICE(0x04ca, 0x2003) },
106 { USB_DEVICE(0x0489, 0xe042) },
107 { USB_DEVICE(0x413c, 0x8197) },
109 /* Foxconn - Hon Hai */
110 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01) },
112 /*Broadcom devices with vendor specific id */
113 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01) },
115 { } /* Terminating entry */
118 MODULE_DEVICE_TABLE(usb
, btusb_table
);
120 static struct usb_device_id blacklist_table
[] = {
121 /* CSR BlueCore devices */
122 { USB_DEVICE(0x0a12, 0x0001), .driver_info
= BTUSB_CSR
},
124 /* Broadcom BCM2033 without firmware */
125 { USB_DEVICE(0x0a5c, 0x2033), .driver_info
= BTUSB_IGNORE
},
127 /* Atheros 3011 with sflash firmware */
128 { USB_DEVICE(0x0cf3, 0x3002), .driver_info
= BTUSB_IGNORE
},
129 { USB_DEVICE(0x0cf3, 0xe019), .driver_info
= BTUSB_IGNORE
},
130 { USB_DEVICE(0x13d3, 0x3304), .driver_info
= BTUSB_IGNORE
},
131 { USB_DEVICE(0x0930, 0x0215), .driver_info
= BTUSB_IGNORE
},
132 { USB_DEVICE(0x0489, 0xe03d), .driver_info
= BTUSB_IGNORE
},
133 { USB_DEVICE(0x0489, 0xe027), .driver_info
= BTUSB_IGNORE
},
135 /* Atheros AR9285 Malbec with sflash firmware */
136 { USB_DEVICE(0x03f0, 0x311d), .driver_info
= BTUSB_IGNORE
},
138 /* Atheros 3012 with sflash firmware */
139 { USB_DEVICE(0x0cf3, 0x0036), .driver_info
= BTUSB_ATH3012
},
140 { USB_DEVICE(0x0cf3, 0x3004), .driver_info
= BTUSB_ATH3012
},
141 { USB_DEVICE(0x0cf3, 0x3008), .driver_info
= BTUSB_ATH3012
},
142 { USB_DEVICE(0x0cf3, 0x311d), .driver_info
= BTUSB_ATH3012
},
143 { USB_DEVICE(0x0cf3, 0x817a), .driver_info
= BTUSB_ATH3012
},
144 { USB_DEVICE(0x13d3, 0x3375), .driver_info
= BTUSB_ATH3012
},
145 { USB_DEVICE(0x04ca, 0x3004), .driver_info
= BTUSB_ATH3012
},
146 { USB_DEVICE(0x04ca, 0x3005), .driver_info
= BTUSB_ATH3012
},
147 { USB_DEVICE(0x04ca, 0x3006), .driver_info
= BTUSB_ATH3012
},
148 { USB_DEVICE(0x04ca, 0x3008), .driver_info
= BTUSB_ATH3012
},
149 { USB_DEVICE(0x13d3, 0x3362), .driver_info
= BTUSB_ATH3012
},
150 { USB_DEVICE(0x0cf3, 0xe004), .driver_info
= BTUSB_ATH3012
},
151 { USB_DEVICE(0x0930, 0x0219), .driver_info
= BTUSB_ATH3012
},
152 { USB_DEVICE(0x0489, 0xe057), .driver_info
= BTUSB_ATH3012
},
153 { USB_DEVICE(0x13d3, 0x3393), .driver_info
= BTUSB_ATH3012
},
154 { USB_DEVICE(0x0489, 0xe04e), .driver_info
= BTUSB_ATH3012
},
155 { USB_DEVICE(0x0489, 0xe056), .driver_info
= BTUSB_ATH3012
},
156 { USB_DEVICE(0x0489, 0xe04d), .driver_info
= BTUSB_ATH3012
},
157 { USB_DEVICE(0x04c5, 0x1330), .driver_info
= BTUSB_ATH3012
},
158 { USB_DEVICE(0x13d3, 0x3402), .driver_info
= BTUSB_ATH3012
},
159 { USB_DEVICE(0x0cf3, 0x3121), .driver_info
= BTUSB_ATH3012
},
160 { USB_DEVICE(0x0cf3, 0xe003), .driver_info
= BTUSB_ATH3012
},
162 /* Atheros AR5BBU12 with sflash firmware */
163 { USB_DEVICE(0x0489, 0xe02c), .driver_info
= BTUSB_IGNORE
},
165 /* Atheros AR5BBU12 with sflash firmware */
166 { USB_DEVICE(0x0489, 0xe03c), .driver_info
= BTUSB_ATH3012
},
167 { USB_DEVICE(0x0489, 0xe036), .driver_info
= BTUSB_ATH3012
},
169 /* Broadcom BCM2035 */
170 { USB_DEVICE(0x0a5c, 0x2035), .driver_info
= BTUSB_WRONG_SCO_MTU
},
171 { USB_DEVICE(0x0a5c, 0x200a), .driver_info
= BTUSB_WRONG_SCO_MTU
},
172 { USB_DEVICE(0x0a5c, 0x2009), .driver_info
= BTUSB_BCM92035
},
174 /* Broadcom BCM2045 */
175 { USB_DEVICE(0x0a5c, 0x2039), .driver_info
= BTUSB_WRONG_SCO_MTU
},
176 { USB_DEVICE(0x0a5c, 0x2101), .driver_info
= BTUSB_WRONG_SCO_MTU
},
178 /* IBM/Lenovo ThinkPad with Broadcom chip */
179 { USB_DEVICE(0x0a5c, 0x201e), .driver_info
= BTUSB_WRONG_SCO_MTU
},
180 { USB_DEVICE(0x0a5c, 0x2110), .driver_info
= BTUSB_WRONG_SCO_MTU
},
182 /* HP laptop with Broadcom chip */
183 { USB_DEVICE(0x03f0, 0x171d), .driver_info
= BTUSB_WRONG_SCO_MTU
},
185 /* Dell laptop with Broadcom chip */
186 { USB_DEVICE(0x413c, 0x8126), .driver_info
= BTUSB_WRONG_SCO_MTU
},
188 /* Dell Wireless 370 and 410 devices */
189 { USB_DEVICE(0x413c, 0x8152), .driver_info
= BTUSB_WRONG_SCO_MTU
},
190 { USB_DEVICE(0x413c, 0x8156), .driver_info
= BTUSB_WRONG_SCO_MTU
},
192 /* Belkin F8T012 and F8T013 devices */
193 { USB_DEVICE(0x050d, 0x0012), .driver_info
= BTUSB_WRONG_SCO_MTU
},
194 { USB_DEVICE(0x050d, 0x0013), .driver_info
= BTUSB_WRONG_SCO_MTU
},
196 /* Asus WL-BTD202 device */
197 { USB_DEVICE(0x0b05, 0x1715), .driver_info
= BTUSB_WRONG_SCO_MTU
},
199 /* Kensington Bluetooth USB adapter */
200 { USB_DEVICE(0x047d, 0x105e), .driver_info
= BTUSB_WRONG_SCO_MTU
},
202 /* RTX Telecom based adapters with buggy SCO support */
203 { USB_DEVICE(0x0400, 0x0807), .driver_info
= BTUSB_BROKEN_ISOC
},
204 { USB_DEVICE(0x0400, 0x080a), .driver_info
= BTUSB_BROKEN_ISOC
},
206 /* CONWISE Technology based adapters with buggy SCO support */
207 { USB_DEVICE(0x0e5e, 0x6622), .driver_info
= BTUSB_BROKEN_ISOC
},
209 /* Digianswer devices */
210 { USB_DEVICE(0x08fd, 0x0001), .driver_info
= BTUSB_DIGIANSWER
},
211 { USB_DEVICE(0x08fd, 0x0002), .driver_info
= BTUSB_IGNORE
},
213 /* CSR BlueCore Bluetooth Sniffer */
214 { USB_DEVICE(0x0a12, 0x0002), .driver_info
= BTUSB_SNIFFER
},
216 /* Frontline ComProbe Bluetooth Sniffer */
217 { USB_DEVICE(0x16d3, 0x0002), .driver_info
= BTUSB_SNIFFER
},
219 /* Intel Bluetooth device */
220 { USB_DEVICE(0x8087, 0x07dc), .driver_info
= BTUSB_INTEL
},
222 { } /* Terminating entry */
225 #define BTUSB_MAX_ISOC_FRAMES 10
227 #define BTUSB_INTR_RUNNING 0
228 #define BTUSB_BULK_RUNNING 1
229 #define BTUSB_ISOC_RUNNING 2
230 #define BTUSB_SUSPENDING 3
231 #define BTUSB_DID_ISO_RESUME 4
234 struct hci_dev
*hdev
;
235 struct usb_device
*udev
;
236 struct usb_interface
*intf
;
237 struct usb_interface
*isoc
;
243 struct work_struct work
;
244 struct work_struct waker
;
246 struct usb_anchor tx_anchor
;
247 struct usb_anchor intr_anchor
;
248 struct usb_anchor bulk_anchor
;
249 struct usb_anchor isoc_anchor
;
250 struct usb_anchor deferred
;
254 struct usb_endpoint_descriptor
*intr_ep
;
255 struct usb_endpoint_descriptor
*bulk_tx_ep
;
256 struct usb_endpoint_descriptor
*bulk_rx_ep
;
257 struct usb_endpoint_descriptor
*isoc_tx_ep
;
258 struct usb_endpoint_descriptor
*isoc_rx_ep
;
262 unsigned int sco_num
;
267 static int inc_tx(struct btusb_data
*data
)
272 spin_lock_irqsave(&data
->txlock
, flags
);
273 rv
= test_bit(BTUSB_SUSPENDING
, &data
->flags
);
275 data
->tx_in_flight
++;
276 spin_unlock_irqrestore(&data
->txlock
, flags
);
281 static void btusb_intr_complete(struct urb
*urb
)
283 struct hci_dev
*hdev
= urb
->context
;
284 struct btusb_data
*data
= hci_get_drvdata(hdev
);
287 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
288 urb
, urb
->status
, urb
->actual_length
);
290 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
293 if (urb
->status
== 0) {
294 hdev
->stat
.byte_rx
+= urb
->actual_length
;
296 if (hci_recv_fragment(hdev
, HCI_EVENT_PKT
,
297 urb
->transfer_buffer
,
298 urb
->actual_length
) < 0) {
299 BT_ERR("%s corrupted event packet", hdev
->name
);
304 if (!test_bit(BTUSB_INTR_RUNNING
, &data
->flags
))
307 usb_mark_last_busy(data
->udev
);
308 usb_anchor_urb(urb
, &data
->intr_anchor
);
310 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
312 /* -EPERM: urb is being killed;
313 * -ENODEV: device got disconnected */
314 if (err
!= -EPERM
&& err
!= -ENODEV
)
315 BT_ERR("%s urb %p failed to resubmit (%d)",
316 hdev
->name
, urb
, -err
);
317 usb_unanchor_urb(urb
);
321 static int btusb_submit_intr_urb(struct hci_dev
*hdev
, gfp_t mem_flags
)
323 struct btusb_data
*data
= hci_get_drvdata(hdev
);
329 BT_DBG("%s", hdev
->name
);
334 urb
= usb_alloc_urb(0, mem_flags
);
338 size
= le16_to_cpu(data
->intr_ep
->wMaxPacketSize
);
340 buf
= kmalloc(size
, mem_flags
);
346 pipe
= usb_rcvintpipe(data
->udev
, data
->intr_ep
->bEndpointAddress
);
348 usb_fill_int_urb(urb
, data
->udev
, pipe
, buf
, size
,
349 btusb_intr_complete
, hdev
,
350 data
->intr_ep
->bInterval
);
352 urb
->transfer_flags
|= URB_FREE_BUFFER
;
354 usb_anchor_urb(urb
, &data
->intr_anchor
);
356 err
= usb_submit_urb(urb
, mem_flags
);
358 if (err
!= -EPERM
&& err
!= -ENODEV
)
359 BT_ERR("%s urb %p submission failed (%d)",
360 hdev
->name
, urb
, -err
);
361 usb_unanchor_urb(urb
);
369 static void btusb_bulk_complete(struct urb
*urb
)
371 struct hci_dev
*hdev
= urb
->context
;
372 struct btusb_data
*data
= hci_get_drvdata(hdev
);
375 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
376 urb
, urb
->status
, urb
->actual_length
);
378 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
381 if (urb
->status
== 0) {
382 hdev
->stat
.byte_rx
+= urb
->actual_length
;
384 if (hci_recv_fragment(hdev
, HCI_ACLDATA_PKT
,
385 urb
->transfer_buffer
,
386 urb
->actual_length
) < 0) {
387 BT_ERR("%s corrupted ACL packet", hdev
->name
);
392 if (!test_bit(BTUSB_BULK_RUNNING
, &data
->flags
))
395 usb_anchor_urb(urb
, &data
->bulk_anchor
);
396 usb_mark_last_busy(data
->udev
);
398 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
400 /* -EPERM: urb is being killed;
401 * -ENODEV: device got disconnected */
402 if (err
!= -EPERM
&& err
!= -ENODEV
)
403 BT_ERR("%s urb %p failed to resubmit (%d)",
404 hdev
->name
, urb
, -err
);
405 usb_unanchor_urb(urb
);
409 static int btusb_submit_bulk_urb(struct hci_dev
*hdev
, gfp_t mem_flags
)
411 struct btusb_data
*data
= hci_get_drvdata(hdev
);
415 int err
, size
= HCI_MAX_FRAME_SIZE
;
417 BT_DBG("%s", hdev
->name
);
419 if (!data
->bulk_rx_ep
)
422 urb
= usb_alloc_urb(0, mem_flags
);
426 buf
= kmalloc(size
, mem_flags
);
432 pipe
= usb_rcvbulkpipe(data
->udev
, data
->bulk_rx_ep
->bEndpointAddress
);
434 usb_fill_bulk_urb(urb
, data
->udev
, pipe
,
435 buf
, size
, btusb_bulk_complete
, hdev
);
437 urb
->transfer_flags
|= URB_FREE_BUFFER
;
439 usb_mark_last_busy(data
->udev
);
440 usb_anchor_urb(urb
, &data
->bulk_anchor
);
442 err
= usb_submit_urb(urb
, mem_flags
);
444 if (err
!= -EPERM
&& err
!= -ENODEV
)
445 BT_ERR("%s urb %p submission failed (%d)",
446 hdev
->name
, urb
, -err
);
447 usb_unanchor_urb(urb
);
455 static void btusb_isoc_complete(struct urb
*urb
)
457 struct hci_dev
*hdev
= urb
->context
;
458 struct btusb_data
*data
= hci_get_drvdata(hdev
);
461 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
462 urb
, urb
->status
, urb
->actual_length
);
464 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
467 if (urb
->status
== 0) {
468 for (i
= 0; i
< urb
->number_of_packets
; i
++) {
469 unsigned int offset
= urb
->iso_frame_desc
[i
].offset
;
470 unsigned int length
= urb
->iso_frame_desc
[i
].actual_length
;
472 if (urb
->iso_frame_desc
[i
].status
)
475 hdev
->stat
.byte_rx
+= length
;
477 if (hci_recv_fragment(hdev
, HCI_SCODATA_PKT
,
478 urb
->transfer_buffer
+ offset
,
480 BT_ERR("%s corrupted SCO packet", hdev
->name
);
486 if (!test_bit(BTUSB_ISOC_RUNNING
, &data
->flags
))
489 usb_anchor_urb(urb
, &data
->isoc_anchor
);
491 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
493 /* -EPERM: urb is being killed;
494 * -ENODEV: device got disconnected */
495 if (err
!= -EPERM
&& err
!= -ENODEV
)
496 BT_ERR("%s urb %p failed to resubmit (%d)",
497 hdev
->name
, urb
, -err
);
498 usb_unanchor_urb(urb
);
502 static inline void __fill_isoc_descriptor(struct urb
*urb
, int len
, int mtu
)
506 BT_DBG("len %d mtu %d", len
, mtu
);
508 for (i
= 0; i
< BTUSB_MAX_ISOC_FRAMES
&& len
>= mtu
;
509 i
++, offset
+= mtu
, len
-= mtu
) {
510 urb
->iso_frame_desc
[i
].offset
= offset
;
511 urb
->iso_frame_desc
[i
].length
= mtu
;
514 if (len
&& i
< BTUSB_MAX_ISOC_FRAMES
) {
515 urb
->iso_frame_desc
[i
].offset
= offset
;
516 urb
->iso_frame_desc
[i
].length
= len
;
520 urb
->number_of_packets
= i
;
523 static int btusb_submit_isoc_urb(struct hci_dev
*hdev
, gfp_t mem_flags
)
525 struct btusb_data
*data
= hci_get_drvdata(hdev
);
531 BT_DBG("%s", hdev
->name
);
533 if (!data
->isoc_rx_ep
)
536 urb
= usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES
, mem_flags
);
540 size
= le16_to_cpu(data
->isoc_rx_ep
->wMaxPacketSize
) *
541 BTUSB_MAX_ISOC_FRAMES
;
543 buf
= kmalloc(size
, mem_flags
);
549 pipe
= usb_rcvisocpipe(data
->udev
, data
->isoc_rx_ep
->bEndpointAddress
);
551 usb_fill_int_urb(urb
, data
->udev
, pipe
, buf
, size
, btusb_isoc_complete
,
552 hdev
, data
->isoc_rx_ep
->bInterval
);
554 urb
->transfer_flags
= URB_FREE_BUFFER
| URB_ISO_ASAP
;
556 __fill_isoc_descriptor(urb
, size
,
557 le16_to_cpu(data
->isoc_rx_ep
->wMaxPacketSize
));
559 usb_anchor_urb(urb
, &data
->isoc_anchor
);
561 err
= usb_submit_urb(urb
, mem_flags
);
563 if (err
!= -EPERM
&& err
!= -ENODEV
)
564 BT_ERR("%s urb %p submission failed (%d)",
565 hdev
->name
, urb
, -err
);
566 usb_unanchor_urb(urb
);
574 static void btusb_tx_complete(struct urb
*urb
)
576 struct sk_buff
*skb
= urb
->context
;
577 struct hci_dev
*hdev
= (struct hci_dev
*) skb
->dev
;
578 struct btusb_data
*data
= hci_get_drvdata(hdev
);
580 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
581 urb
, urb
->status
, urb
->actual_length
);
583 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
587 hdev
->stat
.byte_tx
+= urb
->transfer_buffer_length
;
592 spin_lock(&data
->txlock
);
593 data
->tx_in_flight
--;
594 spin_unlock(&data
->txlock
);
596 kfree(urb
->setup_packet
);
601 static void btusb_isoc_tx_complete(struct urb
*urb
)
603 struct sk_buff
*skb
= urb
->context
;
604 struct hci_dev
*hdev
= (struct hci_dev
*) skb
->dev
;
606 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
607 urb
, urb
->status
, urb
->actual_length
);
609 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
613 hdev
->stat
.byte_tx
+= urb
->transfer_buffer_length
;
618 kfree(urb
->setup_packet
);
623 static int btusb_open(struct hci_dev
*hdev
)
625 struct btusb_data
*data
= hci_get_drvdata(hdev
);
628 BT_DBG("%s", hdev
->name
);
630 err
= usb_autopm_get_interface(data
->intf
);
634 data
->intf
->needs_remote_wakeup
= 1;
636 if (test_and_set_bit(HCI_RUNNING
, &hdev
->flags
))
639 if (test_and_set_bit(BTUSB_INTR_RUNNING
, &data
->flags
))
642 err
= btusb_submit_intr_urb(hdev
, GFP_KERNEL
);
646 err
= btusb_submit_bulk_urb(hdev
, GFP_KERNEL
);
648 usb_kill_anchored_urbs(&data
->intr_anchor
);
652 set_bit(BTUSB_BULK_RUNNING
, &data
->flags
);
653 btusb_submit_bulk_urb(hdev
, GFP_KERNEL
);
656 usb_autopm_put_interface(data
->intf
);
660 clear_bit(BTUSB_INTR_RUNNING
, &data
->flags
);
661 clear_bit(HCI_RUNNING
, &hdev
->flags
);
662 usb_autopm_put_interface(data
->intf
);
666 static void btusb_stop_traffic(struct btusb_data
*data
)
668 usb_kill_anchored_urbs(&data
->intr_anchor
);
669 usb_kill_anchored_urbs(&data
->bulk_anchor
);
670 usb_kill_anchored_urbs(&data
->isoc_anchor
);
673 static int btusb_close(struct hci_dev
*hdev
)
675 struct btusb_data
*data
= hci_get_drvdata(hdev
);
678 BT_DBG("%s", hdev
->name
);
680 if (!test_and_clear_bit(HCI_RUNNING
, &hdev
->flags
))
683 cancel_work_sync(&data
->work
);
684 cancel_work_sync(&data
->waker
);
686 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
687 clear_bit(BTUSB_BULK_RUNNING
, &data
->flags
);
688 clear_bit(BTUSB_INTR_RUNNING
, &data
->flags
);
690 btusb_stop_traffic(data
);
691 err
= usb_autopm_get_interface(data
->intf
);
695 data
->intf
->needs_remote_wakeup
= 0;
696 usb_autopm_put_interface(data
->intf
);
699 usb_scuttle_anchored_urbs(&data
->deferred
);
703 static int btusb_flush(struct hci_dev
*hdev
)
705 struct btusb_data
*data
= hci_get_drvdata(hdev
);
707 BT_DBG("%s", hdev
->name
);
709 usb_kill_anchored_urbs(&data
->tx_anchor
);
714 static int btusb_send_frame(struct sk_buff
*skb
)
716 struct hci_dev
*hdev
= (struct hci_dev
*) skb
->dev
;
717 struct btusb_data
*data
= hci_get_drvdata(hdev
);
718 struct usb_ctrlrequest
*dr
;
723 BT_DBG("%s", hdev
->name
);
725 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
728 switch (bt_cb(skb
)->pkt_type
) {
729 case HCI_COMMAND_PKT
:
730 urb
= usb_alloc_urb(0, GFP_ATOMIC
);
734 dr
= kmalloc(sizeof(*dr
), GFP_ATOMIC
);
740 dr
->bRequestType
= data
->cmdreq_type
;
744 dr
->wLength
= __cpu_to_le16(skb
->len
);
746 pipe
= usb_sndctrlpipe(data
->udev
, 0x00);
748 usb_fill_control_urb(urb
, data
->udev
, pipe
, (void *) dr
,
749 skb
->data
, skb
->len
, btusb_tx_complete
, skb
);
754 case HCI_ACLDATA_PKT
:
755 if (!data
->bulk_tx_ep
)
758 urb
= usb_alloc_urb(0, GFP_ATOMIC
);
762 pipe
= usb_sndbulkpipe(data
->udev
,
763 data
->bulk_tx_ep
->bEndpointAddress
);
765 usb_fill_bulk_urb(urb
, data
->udev
, pipe
,
766 skb
->data
, skb
->len
, btusb_tx_complete
, skb
);
771 case HCI_SCODATA_PKT
:
772 if (!data
->isoc_tx_ep
|| hdev
->conn_hash
.sco_num
< 1)
775 urb
= usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES
, GFP_ATOMIC
);
779 pipe
= usb_sndisocpipe(data
->udev
,
780 data
->isoc_tx_ep
->bEndpointAddress
);
782 usb_fill_int_urb(urb
, data
->udev
, pipe
,
783 skb
->data
, skb
->len
, btusb_isoc_tx_complete
,
784 skb
, data
->isoc_tx_ep
->bInterval
);
786 urb
->transfer_flags
= URB_ISO_ASAP
;
788 __fill_isoc_descriptor(urb
, skb
->len
,
789 le16_to_cpu(data
->isoc_tx_ep
->wMaxPacketSize
));
800 usb_anchor_urb(urb
, &data
->deferred
);
801 schedule_work(&data
->waker
);
807 usb_anchor_urb(urb
, &data
->tx_anchor
);
809 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
811 if (err
!= -EPERM
&& err
!= -ENODEV
)
812 BT_ERR("%s urb %p submission failed (%d)",
813 hdev
->name
, urb
, -err
);
814 kfree(urb
->setup_packet
);
815 usb_unanchor_urb(urb
);
817 usb_mark_last_busy(data
->udev
);
825 static void btusb_notify(struct hci_dev
*hdev
, unsigned int evt
)
827 struct btusb_data
*data
= hci_get_drvdata(hdev
);
829 BT_DBG("%s evt %d", hdev
->name
, evt
);
831 if (hdev
->conn_hash
.sco_num
!= data
->sco_num
) {
832 data
->sco_num
= hdev
->conn_hash
.sco_num
;
833 schedule_work(&data
->work
);
837 static inline int __set_isoc_interface(struct hci_dev
*hdev
, int altsetting
)
839 struct btusb_data
*data
= hci_get_drvdata(hdev
);
840 struct usb_interface
*intf
= data
->isoc
;
841 struct usb_endpoint_descriptor
*ep_desc
;
847 err
= usb_set_interface(data
->udev
, 1, altsetting
);
849 BT_ERR("%s setting interface failed (%d)", hdev
->name
, -err
);
853 data
->isoc_altsetting
= altsetting
;
855 data
->isoc_tx_ep
= NULL
;
856 data
->isoc_rx_ep
= NULL
;
858 for (i
= 0; i
< intf
->cur_altsetting
->desc
.bNumEndpoints
; i
++) {
859 ep_desc
= &intf
->cur_altsetting
->endpoint
[i
].desc
;
861 if (!data
->isoc_tx_ep
&& usb_endpoint_is_isoc_out(ep_desc
)) {
862 data
->isoc_tx_ep
= ep_desc
;
866 if (!data
->isoc_rx_ep
&& usb_endpoint_is_isoc_in(ep_desc
)) {
867 data
->isoc_rx_ep
= ep_desc
;
872 if (!data
->isoc_tx_ep
|| !data
->isoc_rx_ep
) {
873 BT_ERR("%s invalid SCO descriptors", hdev
->name
);
880 static void btusb_work(struct work_struct
*work
)
882 struct btusb_data
*data
= container_of(work
, struct btusb_data
, work
);
883 struct hci_dev
*hdev
= data
->hdev
;
887 if (hdev
->conn_hash
.sco_num
> 0) {
888 if (!test_bit(BTUSB_DID_ISO_RESUME
, &data
->flags
)) {
889 err
= usb_autopm_get_interface(data
->isoc
? data
->isoc
: data
->intf
);
891 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
892 usb_kill_anchored_urbs(&data
->isoc_anchor
);
896 set_bit(BTUSB_DID_ISO_RESUME
, &data
->flags
);
899 if (hdev
->voice_setting
& 0x0020) {
900 static const int alts
[3] = { 2, 4, 5 };
901 new_alts
= alts
[hdev
->conn_hash
.sco_num
- 1];
903 new_alts
= hdev
->conn_hash
.sco_num
;
906 if (data
->isoc_altsetting
!= new_alts
) {
907 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
908 usb_kill_anchored_urbs(&data
->isoc_anchor
);
910 if (__set_isoc_interface(hdev
, new_alts
) < 0)
914 if (!test_and_set_bit(BTUSB_ISOC_RUNNING
, &data
->flags
)) {
915 if (btusb_submit_isoc_urb(hdev
, GFP_KERNEL
) < 0)
916 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
918 btusb_submit_isoc_urb(hdev
, GFP_KERNEL
);
921 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
922 usb_kill_anchored_urbs(&data
->isoc_anchor
);
924 __set_isoc_interface(hdev
, 0);
925 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME
, &data
->flags
))
926 usb_autopm_put_interface(data
->isoc
? data
->isoc
: data
->intf
);
930 static void btusb_waker(struct work_struct
*work
)
932 struct btusb_data
*data
= container_of(work
, struct btusb_data
, waker
);
935 err
= usb_autopm_get_interface(data
->intf
);
939 usb_autopm_put_interface(data
->intf
);
942 static int btusb_setup_bcm92035(struct hci_dev
*hdev
)
947 BT_DBG("%s", hdev
->name
);
949 skb
= __hci_cmd_sync(hdev
, 0xfc3b, 1, &val
, HCI_INIT_TIMEOUT
);
951 BT_ERR("BCM92035 command failed (%ld)", -PTR_ERR(skb
));
958 struct intel_version
{
971 static const struct firmware
*btusb_setup_intel_get_fw(struct hci_dev
*hdev
,
972 struct intel_version
*ver
)
974 const struct firmware
*fw
;
978 snprintf(fwname
, sizeof(fwname
),
979 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
980 ver
->hw_platform
, ver
->hw_variant
, ver
->hw_revision
,
981 ver
->fw_variant
, ver
->fw_revision
, ver
->fw_build_num
,
982 ver
->fw_build_ww
, ver
->fw_build_yy
);
984 ret
= request_firmware(&fw
, fwname
, &hdev
->dev
);
986 if (ret
== -EINVAL
) {
987 BT_ERR("%s Intel firmware file request failed (%d)",
992 BT_ERR("%s failed to open Intel firmware file: %s(%d)",
993 hdev
->name
, fwname
, ret
);
995 /* If the correct firmware patch file is not found, use the
996 * default firmware patch file instead
998 snprintf(fwname
, sizeof(fwname
), "intel/ibt-hw-%x.%x.bseq",
999 ver
->hw_platform
, ver
->hw_variant
);
1000 if (request_firmware(&fw
, fwname
, &hdev
->dev
) < 0) {
1001 BT_ERR("%s failed to open default Intel fw file: %s",
1002 hdev
->name
, fwname
);
1007 BT_INFO("%s: Intel Bluetooth firmware file: %s", hdev
->name
, fwname
);
1012 static int btusb_setup_intel_patching(struct hci_dev
*hdev
,
1013 const struct firmware
*fw
,
1014 const u8
**fw_ptr
, int *disable_patch
)
1016 struct sk_buff
*skb
;
1017 struct hci_command_hdr
*cmd
;
1018 const u8
*cmd_param
;
1019 struct hci_event_hdr
*evt
= NULL
;
1020 const u8
*evt_param
= NULL
;
1021 int remain
= fw
->size
- (*fw_ptr
- fw
->data
);
1023 /* The first byte indicates the types of the patch command or event.
1024 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1025 * in the current firmware buffer doesn't start with 0x01 or
1026 * the size of remain buffer is smaller than HCI command header,
1027 * the firmware file is corrupted and it should stop the patching
1030 if (remain
> HCI_COMMAND_HDR_SIZE
&& *fw_ptr
[0] != 0x01) {
1031 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev
->name
);
1037 cmd
= (struct hci_command_hdr
*)(*fw_ptr
);
1038 *fw_ptr
+= sizeof(*cmd
);
1039 remain
-= sizeof(*cmd
);
1041 /* Ensure that the remain firmware data is long enough than the length
1042 * of command parameter. If not, the firmware file is corrupted.
1044 if (remain
< cmd
->plen
) {
1045 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev
->name
);
1049 /* If there is a command that loads a patch in the firmware
1050 * file, then enable the patch upon success, otherwise just
1051 * disable the manufacturer mode, for example patch activation
1052 * is not required when the default firmware patch file is used
1053 * because there are no patch data to load.
1055 if (*disable_patch
&& le16_to_cpu(cmd
->opcode
) == 0xfc8e)
1058 cmd_param
= *fw_ptr
;
1059 *fw_ptr
+= cmd
->plen
;
1060 remain
-= cmd
->plen
;
1062 /* This reads the expected events when the above command is sent to the
1063 * device. Some vendor commands expects more than one events, for
1064 * example command status event followed by vendor specific event.
1065 * For this case, it only keeps the last expected event. so the command
1066 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1067 * last expected event.
1069 while (remain
> HCI_EVENT_HDR_SIZE
&& *fw_ptr
[0] == 0x02) {
1073 evt
= (struct hci_event_hdr
*)(*fw_ptr
);
1074 *fw_ptr
+= sizeof(*evt
);
1075 remain
-= sizeof(*evt
);
1077 if (remain
< evt
->plen
) {
1078 BT_ERR("%s Intel fw corrupted: invalid evt len",
1083 evt_param
= *fw_ptr
;
1084 *fw_ptr
+= evt
->plen
;
1085 remain
-= evt
->plen
;
1088 /* Every HCI commands in the firmware file has its correspond event.
1089 * If event is not found or remain is smaller than zero, the firmware
1090 * file is corrupted.
1092 if (!evt
|| !evt_param
|| remain
< 0) {
1093 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev
->name
);
1097 skb
= __hci_cmd_sync_ev(hdev
, le16_to_cpu(cmd
->opcode
), cmd
->plen
,
1098 cmd_param
, evt
->evt
, HCI_INIT_TIMEOUT
);
1100 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)",
1101 hdev
->name
, cmd
->opcode
, PTR_ERR(skb
));
1102 return PTR_ERR(skb
);
1105 /* It ensures that the returned event matches the event data read from
1106 * the firmware file. At fist, it checks the length and then
1107 * the contents of the event.
1109 if (skb
->len
!= evt
->plen
) {
1110 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev
->name
,
1111 le16_to_cpu(cmd
->opcode
));
1116 if (memcmp(skb
->data
, evt_param
, evt
->plen
)) {
1117 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)",
1118 hdev
->name
, le16_to_cpu(cmd
->opcode
));
1127 static int btusb_setup_intel(struct hci_dev
*hdev
)
1129 struct sk_buff
*skb
;
1130 const struct firmware
*fw
;
1133 struct intel_version
*ver
;
1135 const u8 mfg_enable
[] = { 0x01, 0x00 };
1136 const u8 mfg_disable
[] = { 0x00, 0x00 };
1137 const u8 mfg_reset_deactivate
[] = { 0x00, 0x01 };
1138 const u8 mfg_reset_activate
[] = { 0x00, 0x02 };
1140 BT_DBG("%s", hdev
->name
);
1142 /* The controller has a bug with the first HCI command sent to it
1143 * returning number of completed commands as zero. This would stall the
1144 * command processing in the Bluetooth core.
1146 * As a workaround, send HCI Reset command first which will reset the
1147 * number of completed commands and allow normal command processing
1150 skb
= __hci_cmd_sync(hdev
, HCI_OP_RESET
, 0, NULL
, HCI_INIT_TIMEOUT
);
1152 BT_ERR("%s sending initial HCI reset command failed (%ld)",
1153 hdev
->name
, PTR_ERR(skb
));
1154 return PTR_ERR(skb
);
1158 /* Read Intel specific controller version first to allow selection of
1159 * which firmware file to load.
1161 * The returned information are hardware variant and revision plus
1162 * firmware variant, revision and build number.
1164 skb
= __hci_cmd_sync(hdev
, 0xfc05, 0, NULL
, HCI_INIT_TIMEOUT
);
1166 BT_ERR("%s reading Intel fw version command failed (%ld)",
1167 hdev
->name
, PTR_ERR(skb
));
1168 return PTR_ERR(skb
);
1171 if (skb
->len
!= sizeof(*ver
)) {
1172 BT_ERR("%s Intel version event length mismatch", hdev
->name
);
1177 ver
= (struct intel_version
*)skb
->data
;
1179 BT_ERR("%s Intel fw version event failed (%02x)", hdev
->name
,
1182 return -bt_to_errno(ver
->status
);
1185 BT_INFO("%s: read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1186 hdev
->name
, ver
->hw_platform
, ver
->hw_variant
,
1187 ver
->hw_revision
, ver
->fw_variant
, ver
->fw_revision
,
1188 ver
->fw_build_num
, ver
->fw_build_ww
, ver
->fw_build_yy
,
1191 /* fw_patch_num indicates the version of patch the device currently
1192 * have. If there is no patch data in the device, it is always 0x00.
1193 * So, if it is other than 0x00, no need to patch the deivce again.
1195 if (ver
->fw_patch_num
) {
1196 BT_INFO("%s: Intel device is already patched. patch num: %02x",
1197 hdev
->name
, ver
->fw_patch_num
);
1202 /* Opens the firmware patch file based on the firmware version read
1203 * from the controller. If it fails to open the matching firmware
1204 * patch file, it tries to open the default firmware patch file.
1205 * If no patch file is found, allow the device to operate without
1208 fw
= btusb_setup_intel_get_fw(hdev
, ver
);
1215 /* This Intel specific command enables the manufacturer mode of the
1218 * Only while this mode is enabled, the driver can download the
1219 * firmware patch data and configuration parameters.
1221 skb
= __hci_cmd_sync(hdev
, 0xfc11, 2, mfg_enable
, HCI_INIT_TIMEOUT
);
1223 BT_ERR("%s entering Intel manufacturer mode failed (%ld)",
1224 hdev
->name
, PTR_ERR(skb
));
1225 release_firmware(fw
);
1226 return PTR_ERR(skb
);
1230 u8 evt_status
= skb
->data
[0];
1231 BT_ERR("%s enable Intel manufacturer mode event failed (%02x)",
1232 hdev
->name
, evt_status
);
1234 release_firmware(fw
);
1235 return -bt_to_errno(evt_status
);
1241 /* The firmware data file consists of list of Intel specific HCI
1242 * commands and its expected events. The first byte indicates the
1243 * type of the message, either HCI command or HCI event.
1245 * It reads the command and its expected event from the firmware file,
1246 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1247 * the returned event is compared with the event read from the firmware
1248 * file and it will continue until all the messages are downloaded to
1251 * Once the firmware patching is completed successfully,
1252 * the manufacturer mode is disabled with reset and activating the
1255 * If the firmware patching fails, the manufacturer mode is
1256 * disabled with reset and deactivating the patch.
1258 * If the default patch file is used, no reset is done when disabling
1261 while (fw
->size
> fw_ptr
- fw
->data
) {
1264 ret
= btusb_setup_intel_patching(hdev
, fw
, &fw_ptr
,
1267 goto exit_mfg_deactivate
;
1270 release_firmware(fw
);
1273 goto exit_mfg_disable
;
1275 /* Patching completed successfully and disable the manufacturer mode
1276 * with reset and activate the downloaded firmware patches.
1278 skb
= __hci_cmd_sync(hdev
, 0xfc11, sizeof(mfg_reset_activate
),
1279 mfg_reset_activate
, HCI_INIT_TIMEOUT
);
1281 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1282 hdev
->name
, PTR_ERR(skb
));
1283 return PTR_ERR(skb
);
1287 BT_INFO("%s: Intel Bluetooth firmware patch completed and activated",
1293 /* Disable the manufacturer mode without reset */
1294 skb
= __hci_cmd_sync(hdev
, 0xfc11, sizeof(mfg_disable
), mfg_disable
,
1297 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1298 hdev
->name
, PTR_ERR(skb
));
1299 return PTR_ERR(skb
);
1303 BT_INFO("%s: Intel Bluetooth firmware patch completed", hdev
->name
);
1306 exit_mfg_deactivate
:
1307 release_firmware(fw
);
1309 /* Patching failed. Disable the manufacturer mode with reset and
1310 * deactivate the downloaded firmware patches.
1312 skb
= __hci_cmd_sync(hdev
, 0xfc11, sizeof(mfg_reset_deactivate
),
1313 mfg_reset_deactivate
, HCI_INIT_TIMEOUT
);
1315 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1316 hdev
->name
, PTR_ERR(skb
));
1317 return PTR_ERR(skb
);
1321 BT_INFO("%s: Intel Bluetooth firmware patch completed and deactivated",
1327 static int btusb_probe(struct usb_interface
*intf
,
1328 const struct usb_device_id
*id
)
1330 struct usb_endpoint_descriptor
*ep_desc
;
1331 struct btusb_data
*data
;
1332 struct hci_dev
*hdev
;
1335 BT_DBG("intf %p id %p", intf
, id
);
1337 /* interface numbers are hardcoded in the spec */
1338 if (intf
->cur_altsetting
->desc
.bInterfaceNumber
!= 0)
1341 if (!id
->driver_info
) {
1342 const struct usb_device_id
*match
;
1343 match
= usb_match_id(intf
, blacklist_table
);
1348 if (id
->driver_info
== BTUSB_IGNORE
)
1351 if (ignore_dga
&& id
->driver_info
& BTUSB_DIGIANSWER
)
1354 if (ignore_csr
&& id
->driver_info
& BTUSB_CSR
)
1357 if (ignore_sniffer
&& id
->driver_info
& BTUSB_SNIFFER
)
1360 if (id
->driver_info
& BTUSB_ATH3012
) {
1361 struct usb_device
*udev
= interface_to_usbdev(intf
);
1363 /* Old firmware would otherwise let ath3k driver load
1364 * patch and sysconfig files */
1365 if (le16_to_cpu(udev
->descriptor
.bcdDevice
) <= 0x0001)
1369 data
= devm_kzalloc(&intf
->dev
, sizeof(*data
), GFP_KERNEL
);
1373 for (i
= 0; i
< intf
->cur_altsetting
->desc
.bNumEndpoints
; i
++) {
1374 ep_desc
= &intf
->cur_altsetting
->endpoint
[i
].desc
;
1376 if (!data
->intr_ep
&& usb_endpoint_is_int_in(ep_desc
)) {
1377 data
->intr_ep
= ep_desc
;
1381 if (!data
->bulk_tx_ep
&& usb_endpoint_is_bulk_out(ep_desc
)) {
1382 data
->bulk_tx_ep
= ep_desc
;
1386 if (!data
->bulk_rx_ep
&& usb_endpoint_is_bulk_in(ep_desc
)) {
1387 data
->bulk_rx_ep
= ep_desc
;
1392 if (!data
->intr_ep
|| !data
->bulk_tx_ep
|| !data
->bulk_rx_ep
)
1395 data
->cmdreq_type
= USB_TYPE_CLASS
;
1397 data
->udev
= interface_to_usbdev(intf
);
1400 spin_lock_init(&data
->lock
);
1402 INIT_WORK(&data
->work
, btusb_work
);
1403 INIT_WORK(&data
->waker
, btusb_waker
);
1404 spin_lock_init(&data
->txlock
);
1406 init_usb_anchor(&data
->tx_anchor
);
1407 init_usb_anchor(&data
->intr_anchor
);
1408 init_usb_anchor(&data
->bulk_anchor
);
1409 init_usb_anchor(&data
->isoc_anchor
);
1410 init_usb_anchor(&data
->deferred
);
1412 hdev
= hci_alloc_dev();
1416 hdev
->bus
= HCI_USB
;
1417 hci_set_drvdata(hdev
, data
);
1421 SET_HCIDEV_DEV(hdev
, &intf
->dev
);
1423 hdev
->open
= btusb_open
;
1424 hdev
->close
= btusb_close
;
1425 hdev
->flush
= btusb_flush
;
1426 hdev
->send
= btusb_send_frame
;
1427 hdev
->notify
= btusb_notify
;
1429 if (id
->driver_info
& BTUSB_BCM92035
)
1430 hdev
->setup
= btusb_setup_bcm92035
;
1432 if (id
->driver_info
& BTUSB_INTEL
)
1433 hdev
->setup
= btusb_setup_intel
;
1435 /* Interface numbers are hardcoded in the specification */
1436 data
->isoc
= usb_ifnum_to_if(data
->udev
, 1);
1439 set_bit(HCI_QUIRK_RESET_ON_CLOSE
, &hdev
->quirks
);
1441 if (force_scofix
|| id
->driver_info
& BTUSB_WRONG_SCO_MTU
) {
1442 if (!disable_scofix
)
1443 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE
, &hdev
->quirks
);
1446 if (id
->driver_info
& BTUSB_BROKEN_ISOC
)
1449 if (id
->driver_info
& BTUSB_DIGIANSWER
) {
1450 data
->cmdreq_type
= USB_TYPE_VENDOR
;
1451 set_bit(HCI_QUIRK_RESET_ON_CLOSE
, &hdev
->quirks
);
1454 if (id
->driver_info
& BTUSB_CSR
) {
1455 struct usb_device
*udev
= data
->udev
;
1457 /* Old firmware would otherwise execute USB reset */
1458 if (le16_to_cpu(udev
->descriptor
.bcdDevice
) < 0x117)
1459 set_bit(HCI_QUIRK_RESET_ON_CLOSE
, &hdev
->quirks
);
1462 if (id
->driver_info
& BTUSB_SNIFFER
) {
1463 struct usb_device
*udev
= data
->udev
;
1465 /* New sniffer firmware has crippled HCI interface */
1466 if (le16_to_cpu(udev
->descriptor
.bcdDevice
) > 0x997)
1467 set_bit(HCI_QUIRK_RAW_DEVICE
, &hdev
->quirks
);
1473 err
= usb_driver_claim_interface(&btusb_driver
,
1481 err
= hci_register_dev(hdev
);
1487 usb_set_intfdata(intf
, data
);
1492 static void btusb_disconnect(struct usb_interface
*intf
)
1494 struct btusb_data
*data
= usb_get_intfdata(intf
);
1495 struct hci_dev
*hdev
;
1497 BT_DBG("intf %p", intf
);
1503 usb_set_intfdata(data
->intf
, NULL
);
1506 usb_set_intfdata(data
->isoc
, NULL
);
1508 hci_unregister_dev(hdev
);
1510 if (intf
== data
->isoc
)
1511 usb_driver_release_interface(&btusb_driver
, data
->intf
);
1512 else if (data
->isoc
)
1513 usb_driver_release_interface(&btusb_driver
, data
->isoc
);
1519 static int btusb_suspend(struct usb_interface
*intf
, pm_message_t message
)
1521 struct btusb_data
*data
= usb_get_intfdata(intf
);
1523 BT_DBG("intf %p", intf
);
1525 if (data
->suspend_count
++)
1528 spin_lock_irq(&data
->txlock
);
1529 if (!(PMSG_IS_AUTO(message
) && data
->tx_in_flight
)) {
1530 set_bit(BTUSB_SUSPENDING
, &data
->flags
);
1531 spin_unlock_irq(&data
->txlock
);
1533 spin_unlock_irq(&data
->txlock
);
1534 data
->suspend_count
--;
1538 cancel_work_sync(&data
->work
);
1540 btusb_stop_traffic(data
);
1541 usb_kill_anchored_urbs(&data
->tx_anchor
);
1546 static void play_deferred(struct btusb_data
*data
)
1551 while ((urb
= usb_get_from_anchor(&data
->deferred
))) {
1552 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
1556 data
->tx_in_flight
++;
1558 usb_scuttle_anchored_urbs(&data
->deferred
);
1561 static int btusb_resume(struct usb_interface
*intf
)
1563 struct btusb_data
*data
= usb_get_intfdata(intf
);
1564 struct hci_dev
*hdev
= data
->hdev
;
1567 BT_DBG("intf %p", intf
);
1569 if (--data
->suspend_count
)
1572 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
1575 if (test_bit(BTUSB_INTR_RUNNING
, &data
->flags
)) {
1576 err
= btusb_submit_intr_urb(hdev
, GFP_NOIO
);
1578 clear_bit(BTUSB_INTR_RUNNING
, &data
->flags
);
1583 if (test_bit(BTUSB_BULK_RUNNING
, &data
->flags
)) {
1584 err
= btusb_submit_bulk_urb(hdev
, GFP_NOIO
);
1586 clear_bit(BTUSB_BULK_RUNNING
, &data
->flags
);
1590 btusb_submit_bulk_urb(hdev
, GFP_NOIO
);
1593 if (test_bit(BTUSB_ISOC_RUNNING
, &data
->flags
)) {
1594 if (btusb_submit_isoc_urb(hdev
, GFP_NOIO
) < 0)
1595 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
1597 btusb_submit_isoc_urb(hdev
, GFP_NOIO
);
1600 spin_lock_irq(&data
->txlock
);
1601 play_deferred(data
);
1602 clear_bit(BTUSB_SUSPENDING
, &data
->flags
);
1603 spin_unlock_irq(&data
->txlock
);
1604 schedule_work(&data
->work
);
1609 usb_scuttle_anchored_urbs(&data
->deferred
);
1611 spin_lock_irq(&data
->txlock
);
1612 clear_bit(BTUSB_SUSPENDING
, &data
->flags
);
1613 spin_unlock_irq(&data
->txlock
);
1619 static struct usb_driver btusb_driver
= {
1621 .probe
= btusb_probe
,
1622 .disconnect
= btusb_disconnect
,
1624 .suspend
= btusb_suspend
,
1625 .resume
= btusb_resume
,
1626 .reset_resume
= btusb_resume
,
1628 .id_table
= btusb_table
,
1629 .supports_autosuspend
= 1,
1630 .disable_hub_initiated_lpm
= 1,
1633 module_usb_driver(btusb_driver
);
1635 module_param(ignore_dga
, bool, 0644);
1636 MODULE_PARM_DESC(ignore_dga
, "Ignore devices with id 08fd:0001");
1638 module_param(ignore_csr
, bool, 0644);
1639 MODULE_PARM_DESC(ignore_csr
, "Ignore devices with id 0a12:0001");
1641 module_param(ignore_sniffer
, bool, 0644);
1642 MODULE_PARM_DESC(ignore_sniffer
, "Ignore devices with id 0a12:0002");
1644 module_param(disable_scofix
, bool, 0644);
1645 MODULE_PARM_DESC(disable_scofix
, "Disable fixup of wrong SCO buffer size");
1647 module_param(force_scofix
, bool, 0644);
1648 MODULE_PARM_DESC(force_scofix
, "Force fixup of wrong SCO buffers size");
1650 module_param(reset
, bool, 0644);
1651 MODULE_PARM_DESC(reset
, "Send HCI reset command on initialization");
1653 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1654 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION
);
1655 MODULE_VERSION(VERSION
);
1656 MODULE_LICENSE("GPL");