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 int ignore_dga
;
41 static int ignore_csr
;
42 static int ignore_sniffer
;
43 static int disable_scofix
;
44 static int force_scofix
;
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
58 static struct usb_device_id btusb_table
[] = {
59 /* Generic Bluetooth USB device */
60 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
62 /* Apple MacBookPro 7,1 */
63 { USB_DEVICE(0x05ac, 0x8213) },
66 { USB_DEVICE(0x05ac, 0x8215) },
68 /* Apple MacBookPro6,2 */
69 { USB_DEVICE(0x05ac, 0x8218) },
71 /* Apple MacBookAir3,1, MacBookAir3,2 */
72 { USB_DEVICE(0x05ac, 0x821b) },
74 /* Apple MacBookPro8,2 */
75 { USB_DEVICE(0x05ac, 0x821a) },
77 /* AVM BlueFRITZ! USB v2.0 */
78 { USB_DEVICE(0x057c, 0x3800) },
80 /* Bluetooth Ultraport Module from IBM */
81 { USB_DEVICE(0x04bf, 0x030a) },
83 /* ALPS Modules with non-standard id */
84 { USB_DEVICE(0x044e, 0x3001) },
85 { USB_DEVICE(0x044e, 0x3002) },
87 /* Ericsson with non-standard id */
88 { USB_DEVICE(0x0bdb, 0x1002) },
90 /* Canyon CN-BTU1 with HID interfaces */
91 { USB_DEVICE(0x0c10, 0x0000) },
93 { } /* Terminating entry */
96 MODULE_DEVICE_TABLE(usb
, btusb_table
);
98 static struct usb_device_id blacklist_table
[] = {
99 /* CSR BlueCore devices */
100 { USB_DEVICE(0x0a12, 0x0001), .driver_info
= BTUSB_CSR
},
102 /* Broadcom BCM2033 without firmware */
103 { USB_DEVICE(0x0a5c, 0x2033), .driver_info
= BTUSB_IGNORE
},
105 /* Atheros 3011 with sflash firmware */
106 { USB_DEVICE(0x0cf3, 0x3002), .driver_info
= BTUSB_IGNORE
},
108 /* Atheros AR9285 Malbec with sflash firmware */
109 { USB_DEVICE(0x03f0, 0x311d), .driver_info
= BTUSB_IGNORE
},
111 /* Atheros AR5BBU12 with sflash firmware */
112 { USB_DEVICE(0x0489, 0xe02c), .driver_info
= BTUSB_IGNORE
},
114 /* Broadcom BCM2035 */
115 { USB_DEVICE(0x0a5c, 0x2035), .driver_info
= BTUSB_WRONG_SCO_MTU
},
116 { USB_DEVICE(0x0a5c, 0x200a), .driver_info
= BTUSB_WRONG_SCO_MTU
},
117 { USB_DEVICE(0x0a5c, 0x2009), .driver_info
= BTUSB_BCM92035
},
119 /* Broadcom BCM2045 */
120 { USB_DEVICE(0x0a5c, 0x2039), .driver_info
= BTUSB_WRONG_SCO_MTU
},
121 { USB_DEVICE(0x0a5c, 0x2101), .driver_info
= BTUSB_WRONG_SCO_MTU
},
123 /* IBM/Lenovo ThinkPad with Broadcom chip */
124 { USB_DEVICE(0x0a5c, 0x201e), .driver_info
= BTUSB_WRONG_SCO_MTU
},
125 { USB_DEVICE(0x0a5c, 0x2110), .driver_info
= BTUSB_WRONG_SCO_MTU
},
127 /* HP laptop with Broadcom chip */
128 { USB_DEVICE(0x03f0, 0x171d), .driver_info
= BTUSB_WRONG_SCO_MTU
},
130 /* Dell laptop with Broadcom chip */
131 { USB_DEVICE(0x413c, 0x8126), .driver_info
= BTUSB_WRONG_SCO_MTU
},
133 /* Dell Wireless 370 and 410 devices */
134 { USB_DEVICE(0x413c, 0x8152), .driver_info
= BTUSB_WRONG_SCO_MTU
},
135 { USB_DEVICE(0x413c, 0x8156), .driver_info
= BTUSB_WRONG_SCO_MTU
},
137 /* Belkin F8T012 and F8T013 devices */
138 { USB_DEVICE(0x050d, 0x0012), .driver_info
= BTUSB_WRONG_SCO_MTU
},
139 { USB_DEVICE(0x050d, 0x0013), .driver_info
= BTUSB_WRONG_SCO_MTU
},
141 /* Asus WL-BTD202 device */
142 { USB_DEVICE(0x0b05, 0x1715), .driver_info
= BTUSB_WRONG_SCO_MTU
},
144 /* Kensington Bluetooth USB adapter */
145 { USB_DEVICE(0x047d, 0x105e), .driver_info
= BTUSB_WRONG_SCO_MTU
},
147 /* RTX Telecom based adapters with buggy SCO support */
148 { USB_DEVICE(0x0400, 0x0807), .driver_info
= BTUSB_BROKEN_ISOC
},
149 { USB_DEVICE(0x0400, 0x080a), .driver_info
= BTUSB_BROKEN_ISOC
},
151 /* CONWISE Technology based adapters with buggy SCO support */
152 { USB_DEVICE(0x0e5e, 0x6622), .driver_info
= BTUSB_BROKEN_ISOC
},
154 /* Digianswer devices */
155 { USB_DEVICE(0x08fd, 0x0001), .driver_info
= BTUSB_DIGIANSWER
},
156 { USB_DEVICE(0x08fd, 0x0002), .driver_info
= BTUSB_IGNORE
},
158 /* CSR BlueCore Bluetooth Sniffer */
159 { USB_DEVICE(0x0a12, 0x0002), .driver_info
= BTUSB_SNIFFER
},
161 /* Frontline ComProbe Bluetooth Sniffer */
162 { USB_DEVICE(0x16d3, 0x0002), .driver_info
= BTUSB_SNIFFER
},
164 { } /* Terminating entry */
167 #define BTUSB_MAX_ISOC_FRAMES 10
169 #define BTUSB_INTR_RUNNING 0
170 #define BTUSB_BULK_RUNNING 1
171 #define BTUSB_ISOC_RUNNING 2
172 #define BTUSB_SUSPENDING 3
173 #define BTUSB_DID_ISO_RESUME 4
176 struct hci_dev
*hdev
;
177 struct usb_device
*udev
;
178 struct usb_interface
*intf
;
179 struct usb_interface
*isoc
;
185 struct work_struct work
;
186 struct work_struct waker
;
188 struct usb_anchor tx_anchor
;
189 struct usb_anchor intr_anchor
;
190 struct usb_anchor bulk_anchor
;
191 struct usb_anchor isoc_anchor
;
192 struct usb_anchor deferred
;
196 struct usb_endpoint_descriptor
*intr_ep
;
197 struct usb_endpoint_descriptor
*bulk_tx_ep
;
198 struct usb_endpoint_descriptor
*bulk_rx_ep
;
199 struct usb_endpoint_descriptor
*isoc_tx_ep
;
200 struct usb_endpoint_descriptor
*isoc_rx_ep
;
204 unsigned int sco_num
;
209 static int inc_tx(struct btusb_data
*data
)
214 spin_lock_irqsave(&data
->txlock
, flags
);
215 rv
= test_bit(BTUSB_SUSPENDING
, &data
->flags
);
217 data
->tx_in_flight
++;
218 spin_unlock_irqrestore(&data
->txlock
, flags
);
223 static void btusb_intr_complete(struct urb
*urb
)
225 struct hci_dev
*hdev
= urb
->context
;
226 struct btusb_data
*data
= hdev
->driver_data
;
229 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
230 urb
, urb
->status
, urb
->actual_length
);
232 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
235 if (urb
->status
== 0) {
236 hdev
->stat
.byte_rx
+= urb
->actual_length
;
238 if (hci_recv_fragment(hdev
, HCI_EVENT_PKT
,
239 urb
->transfer_buffer
,
240 urb
->actual_length
) < 0) {
241 BT_ERR("%s corrupted event packet", hdev
->name
);
246 if (!test_bit(BTUSB_INTR_RUNNING
, &data
->flags
))
249 usb_mark_last_busy(data
->udev
);
250 usb_anchor_urb(urb
, &data
->intr_anchor
);
252 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
255 BT_ERR("%s urb %p failed to resubmit (%d)",
256 hdev
->name
, urb
, -err
);
257 usb_unanchor_urb(urb
);
261 static int btusb_submit_intr_urb(struct hci_dev
*hdev
, gfp_t mem_flags
)
263 struct btusb_data
*data
= hdev
->driver_data
;
269 BT_DBG("%s", hdev
->name
);
274 urb
= usb_alloc_urb(0, mem_flags
);
278 size
= le16_to_cpu(data
->intr_ep
->wMaxPacketSize
);
280 buf
= kmalloc(size
, mem_flags
);
286 pipe
= usb_rcvintpipe(data
->udev
, data
->intr_ep
->bEndpointAddress
);
288 usb_fill_int_urb(urb
, data
->udev
, pipe
, buf
, size
,
289 btusb_intr_complete
, hdev
,
290 data
->intr_ep
->bInterval
);
292 urb
->transfer_flags
|= URB_FREE_BUFFER
;
294 usb_anchor_urb(urb
, &data
->intr_anchor
);
296 err
= usb_submit_urb(urb
, mem_flags
);
298 BT_ERR("%s urb %p submission failed (%d)",
299 hdev
->name
, urb
, -err
);
300 usb_unanchor_urb(urb
);
308 static void btusb_bulk_complete(struct urb
*urb
)
310 struct hci_dev
*hdev
= urb
->context
;
311 struct btusb_data
*data
= hdev
->driver_data
;
314 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
315 urb
, urb
->status
, urb
->actual_length
);
317 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
320 if (urb
->status
== 0) {
321 hdev
->stat
.byte_rx
+= urb
->actual_length
;
323 if (hci_recv_fragment(hdev
, HCI_ACLDATA_PKT
,
324 urb
->transfer_buffer
,
325 urb
->actual_length
) < 0) {
326 BT_ERR("%s corrupted ACL packet", hdev
->name
);
331 if (!test_bit(BTUSB_BULK_RUNNING
, &data
->flags
))
334 usb_anchor_urb(urb
, &data
->bulk_anchor
);
335 usb_mark_last_busy(data
->udev
);
337 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
340 BT_ERR("%s urb %p failed to resubmit (%d)",
341 hdev
->name
, urb
, -err
);
342 usb_unanchor_urb(urb
);
346 static int btusb_submit_bulk_urb(struct hci_dev
*hdev
, gfp_t mem_flags
)
348 struct btusb_data
*data
= hdev
->driver_data
;
352 int err
, size
= HCI_MAX_FRAME_SIZE
;
354 BT_DBG("%s", hdev
->name
);
356 if (!data
->bulk_rx_ep
)
359 urb
= usb_alloc_urb(0, mem_flags
);
363 buf
= kmalloc(size
, mem_flags
);
369 pipe
= usb_rcvbulkpipe(data
->udev
, data
->bulk_rx_ep
->bEndpointAddress
);
371 usb_fill_bulk_urb(urb
, data
->udev
, pipe
,
372 buf
, size
, btusb_bulk_complete
, hdev
);
374 urb
->transfer_flags
|= URB_FREE_BUFFER
;
376 usb_mark_last_busy(data
->udev
);
377 usb_anchor_urb(urb
, &data
->bulk_anchor
);
379 err
= usb_submit_urb(urb
, mem_flags
);
381 BT_ERR("%s urb %p submission failed (%d)",
382 hdev
->name
, urb
, -err
);
383 usb_unanchor_urb(urb
);
391 static void btusb_isoc_complete(struct urb
*urb
)
393 struct hci_dev
*hdev
= urb
->context
;
394 struct btusb_data
*data
= hdev
->driver_data
;
397 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
398 urb
, urb
->status
, urb
->actual_length
);
400 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
403 if (urb
->status
== 0) {
404 for (i
= 0; i
< urb
->number_of_packets
; i
++) {
405 unsigned int offset
= urb
->iso_frame_desc
[i
].offset
;
406 unsigned int length
= urb
->iso_frame_desc
[i
].actual_length
;
408 if (urb
->iso_frame_desc
[i
].status
)
411 hdev
->stat
.byte_rx
+= length
;
413 if (hci_recv_fragment(hdev
, HCI_SCODATA_PKT
,
414 urb
->transfer_buffer
+ offset
,
416 BT_ERR("%s corrupted SCO packet", hdev
->name
);
422 if (!test_bit(BTUSB_ISOC_RUNNING
, &data
->flags
))
425 usb_anchor_urb(urb
, &data
->isoc_anchor
);
427 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
430 BT_ERR("%s urb %p failed to resubmit (%d)",
431 hdev
->name
, urb
, -err
);
432 usb_unanchor_urb(urb
);
436 static void inline __fill_isoc_descriptor(struct urb
*urb
, int len
, int mtu
)
440 BT_DBG("len %d mtu %d", len
, mtu
);
442 for (i
= 0; i
< BTUSB_MAX_ISOC_FRAMES
&& len
>= mtu
;
443 i
++, offset
+= mtu
, len
-= mtu
) {
444 urb
->iso_frame_desc
[i
].offset
= offset
;
445 urb
->iso_frame_desc
[i
].length
= mtu
;
448 if (len
&& i
< BTUSB_MAX_ISOC_FRAMES
) {
449 urb
->iso_frame_desc
[i
].offset
= offset
;
450 urb
->iso_frame_desc
[i
].length
= len
;
454 urb
->number_of_packets
= i
;
457 static int btusb_submit_isoc_urb(struct hci_dev
*hdev
, gfp_t mem_flags
)
459 struct btusb_data
*data
= hdev
->driver_data
;
465 BT_DBG("%s", hdev
->name
);
467 if (!data
->isoc_rx_ep
)
470 urb
= usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES
, mem_flags
);
474 size
= le16_to_cpu(data
->isoc_rx_ep
->wMaxPacketSize
) *
475 BTUSB_MAX_ISOC_FRAMES
;
477 buf
= kmalloc(size
, mem_flags
);
483 pipe
= usb_rcvisocpipe(data
->udev
, data
->isoc_rx_ep
->bEndpointAddress
);
485 urb
->dev
= data
->udev
;
488 urb
->complete
= btusb_isoc_complete
;
489 urb
->interval
= data
->isoc_rx_ep
->bInterval
;
491 urb
->transfer_flags
= URB_FREE_BUFFER
| URB_ISO_ASAP
;
492 urb
->transfer_buffer
= buf
;
493 urb
->transfer_buffer_length
= size
;
495 __fill_isoc_descriptor(urb
, size
,
496 le16_to_cpu(data
->isoc_rx_ep
->wMaxPacketSize
));
498 usb_anchor_urb(urb
, &data
->isoc_anchor
);
500 err
= usb_submit_urb(urb
, mem_flags
);
502 BT_ERR("%s urb %p submission failed (%d)",
503 hdev
->name
, urb
, -err
);
504 usb_unanchor_urb(urb
);
512 static void btusb_tx_complete(struct urb
*urb
)
514 struct sk_buff
*skb
= urb
->context
;
515 struct hci_dev
*hdev
= (struct hci_dev
*) skb
->dev
;
516 struct btusb_data
*data
= hdev
->driver_data
;
518 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
519 urb
, urb
->status
, urb
->actual_length
);
521 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
525 hdev
->stat
.byte_tx
+= urb
->transfer_buffer_length
;
530 spin_lock(&data
->txlock
);
531 data
->tx_in_flight
--;
532 spin_unlock(&data
->txlock
);
534 kfree(urb
->setup_packet
);
539 static void btusb_isoc_tx_complete(struct urb
*urb
)
541 struct sk_buff
*skb
= urb
->context
;
542 struct hci_dev
*hdev
= (struct hci_dev
*) skb
->dev
;
544 BT_DBG("%s urb %p status %d count %d", hdev
->name
,
545 urb
, urb
->status
, urb
->actual_length
);
547 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
551 hdev
->stat
.byte_tx
+= urb
->transfer_buffer_length
;
556 kfree(urb
->setup_packet
);
561 static int btusb_open(struct hci_dev
*hdev
)
563 struct btusb_data
*data
= hdev
->driver_data
;
566 BT_DBG("%s", hdev
->name
);
568 err
= usb_autopm_get_interface(data
->intf
);
572 data
->intf
->needs_remote_wakeup
= 1;
574 if (test_and_set_bit(HCI_RUNNING
, &hdev
->flags
))
577 if (test_and_set_bit(BTUSB_INTR_RUNNING
, &data
->flags
))
580 err
= btusb_submit_intr_urb(hdev
, GFP_KERNEL
);
584 err
= btusb_submit_bulk_urb(hdev
, GFP_KERNEL
);
586 usb_kill_anchored_urbs(&data
->intr_anchor
);
590 set_bit(BTUSB_BULK_RUNNING
, &data
->flags
);
591 btusb_submit_bulk_urb(hdev
, GFP_KERNEL
);
594 usb_autopm_put_interface(data
->intf
);
598 clear_bit(BTUSB_INTR_RUNNING
, &data
->flags
);
599 clear_bit(HCI_RUNNING
, &hdev
->flags
);
600 usb_autopm_put_interface(data
->intf
);
604 static void btusb_stop_traffic(struct btusb_data
*data
)
606 usb_kill_anchored_urbs(&data
->intr_anchor
);
607 usb_kill_anchored_urbs(&data
->bulk_anchor
);
608 usb_kill_anchored_urbs(&data
->isoc_anchor
);
611 static int btusb_close(struct hci_dev
*hdev
)
613 struct btusb_data
*data
= hdev
->driver_data
;
616 BT_DBG("%s", hdev
->name
);
618 if (!test_and_clear_bit(HCI_RUNNING
, &hdev
->flags
))
621 cancel_work_sync(&data
->work
);
622 cancel_work_sync(&data
->waker
);
624 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
625 clear_bit(BTUSB_BULK_RUNNING
, &data
->flags
);
626 clear_bit(BTUSB_INTR_RUNNING
, &data
->flags
);
628 btusb_stop_traffic(data
);
629 err
= usb_autopm_get_interface(data
->intf
);
633 data
->intf
->needs_remote_wakeup
= 0;
634 usb_autopm_put_interface(data
->intf
);
637 usb_scuttle_anchored_urbs(&data
->deferred
);
641 static int btusb_flush(struct hci_dev
*hdev
)
643 struct btusb_data
*data
= hdev
->driver_data
;
645 BT_DBG("%s", hdev
->name
);
647 usb_kill_anchored_urbs(&data
->tx_anchor
);
652 static int btusb_send_frame(struct sk_buff
*skb
)
654 struct hci_dev
*hdev
= (struct hci_dev
*) skb
->dev
;
655 struct btusb_data
*data
= hdev
->driver_data
;
656 struct usb_ctrlrequest
*dr
;
661 BT_DBG("%s", hdev
->name
);
663 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
666 switch (bt_cb(skb
)->pkt_type
) {
667 case HCI_COMMAND_PKT
:
668 urb
= usb_alloc_urb(0, GFP_ATOMIC
);
672 dr
= kmalloc(sizeof(*dr
), GFP_ATOMIC
);
678 dr
->bRequestType
= data
->cmdreq_type
;
682 dr
->wLength
= __cpu_to_le16(skb
->len
);
684 pipe
= usb_sndctrlpipe(data
->udev
, 0x00);
686 usb_fill_control_urb(urb
, data
->udev
, pipe
, (void *) dr
,
687 skb
->data
, skb
->len
, btusb_tx_complete
, skb
);
692 case HCI_ACLDATA_PKT
:
693 if (!data
->bulk_tx_ep
|| hdev
->conn_hash
.acl_num
< 1)
696 urb
= usb_alloc_urb(0, GFP_ATOMIC
);
700 pipe
= usb_sndbulkpipe(data
->udev
,
701 data
->bulk_tx_ep
->bEndpointAddress
);
703 usb_fill_bulk_urb(urb
, data
->udev
, pipe
,
704 skb
->data
, skb
->len
, btusb_tx_complete
, skb
);
709 case HCI_SCODATA_PKT
:
710 if (!data
->isoc_tx_ep
|| hdev
->conn_hash
.sco_num
< 1)
713 urb
= usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES
, GFP_ATOMIC
);
717 pipe
= usb_sndisocpipe(data
->udev
,
718 data
->isoc_tx_ep
->bEndpointAddress
);
720 urb
->dev
= data
->udev
;
723 urb
->complete
= btusb_isoc_tx_complete
;
724 urb
->interval
= data
->isoc_tx_ep
->bInterval
;
726 urb
->transfer_flags
= URB_ISO_ASAP
;
727 urb
->transfer_buffer
= skb
->data
;
728 urb
->transfer_buffer_length
= skb
->len
;
730 __fill_isoc_descriptor(urb
, skb
->len
,
731 le16_to_cpu(data
->isoc_tx_ep
->wMaxPacketSize
));
742 usb_anchor_urb(urb
, &data
->deferred
);
743 schedule_work(&data
->waker
);
749 usb_anchor_urb(urb
, &data
->tx_anchor
);
751 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
753 BT_ERR("%s urb %p submission failed", hdev
->name
, urb
);
754 kfree(urb
->setup_packet
);
755 usb_unanchor_urb(urb
);
757 usb_mark_last_busy(data
->udev
);
766 static void btusb_destruct(struct hci_dev
*hdev
)
768 struct btusb_data
*data
= hdev
->driver_data
;
770 BT_DBG("%s", hdev
->name
);
775 static void btusb_notify(struct hci_dev
*hdev
, unsigned int evt
)
777 struct btusb_data
*data
= hdev
->driver_data
;
779 BT_DBG("%s evt %d", hdev
->name
, evt
);
781 if (hdev
->conn_hash
.sco_num
!= data
->sco_num
) {
782 data
->sco_num
= hdev
->conn_hash
.sco_num
;
783 schedule_work(&data
->work
);
787 static int inline __set_isoc_interface(struct hci_dev
*hdev
, int altsetting
)
789 struct btusb_data
*data
= hdev
->driver_data
;
790 struct usb_interface
*intf
= data
->isoc
;
791 struct usb_endpoint_descriptor
*ep_desc
;
797 err
= usb_set_interface(data
->udev
, 1, altsetting
);
799 BT_ERR("%s setting interface failed (%d)", hdev
->name
, -err
);
803 data
->isoc_altsetting
= altsetting
;
805 data
->isoc_tx_ep
= NULL
;
806 data
->isoc_rx_ep
= NULL
;
808 for (i
= 0; i
< intf
->cur_altsetting
->desc
.bNumEndpoints
; i
++) {
809 ep_desc
= &intf
->cur_altsetting
->endpoint
[i
].desc
;
811 if (!data
->isoc_tx_ep
&& usb_endpoint_is_isoc_out(ep_desc
)) {
812 data
->isoc_tx_ep
= ep_desc
;
816 if (!data
->isoc_rx_ep
&& usb_endpoint_is_isoc_in(ep_desc
)) {
817 data
->isoc_rx_ep
= ep_desc
;
822 if (!data
->isoc_tx_ep
|| !data
->isoc_rx_ep
) {
823 BT_ERR("%s invalid SCO descriptors", hdev
->name
);
830 static void btusb_work(struct work_struct
*work
)
832 struct btusb_data
*data
= container_of(work
, struct btusb_data
, work
);
833 struct hci_dev
*hdev
= data
->hdev
;
836 if (hdev
->conn_hash
.sco_num
> 0) {
837 if (!test_bit(BTUSB_DID_ISO_RESUME
, &data
->flags
)) {
838 err
= usb_autopm_get_interface(data
->isoc
? data
->isoc
: data
->intf
);
840 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
841 usb_kill_anchored_urbs(&data
->isoc_anchor
);
845 set_bit(BTUSB_DID_ISO_RESUME
, &data
->flags
);
847 if (data
->isoc_altsetting
!= 2) {
848 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
849 usb_kill_anchored_urbs(&data
->isoc_anchor
);
851 if (__set_isoc_interface(hdev
, 2) < 0)
855 if (!test_and_set_bit(BTUSB_ISOC_RUNNING
, &data
->flags
)) {
856 if (btusb_submit_isoc_urb(hdev
, GFP_KERNEL
) < 0)
857 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
859 btusb_submit_isoc_urb(hdev
, GFP_KERNEL
);
862 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
863 usb_kill_anchored_urbs(&data
->isoc_anchor
);
865 __set_isoc_interface(hdev
, 0);
866 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME
, &data
->flags
))
867 usb_autopm_put_interface(data
->isoc
? data
->isoc
: data
->intf
);
871 static void btusb_waker(struct work_struct
*work
)
873 struct btusb_data
*data
= container_of(work
, struct btusb_data
, waker
);
876 err
= usb_autopm_get_interface(data
->intf
);
880 usb_autopm_put_interface(data
->intf
);
883 static int btusb_probe(struct usb_interface
*intf
,
884 const struct usb_device_id
*id
)
886 struct usb_endpoint_descriptor
*ep_desc
;
887 struct btusb_data
*data
;
888 struct hci_dev
*hdev
;
891 BT_DBG("intf %p id %p", intf
, id
);
893 /* interface numbers are hardcoded in the spec */
894 if (intf
->cur_altsetting
->desc
.bInterfaceNumber
!= 0)
897 if (!id
->driver_info
) {
898 const struct usb_device_id
*match
;
899 match
= usb_match_id(intf
, blacklist_table
);
904 if (id
->driver_info
== BTUSB_IGNORE
)
907 if (ignore_dga
&& id
->driver_info
& BTUSB_DIGIANSWER
)
910 if (ignore_csr
&& id
->driver_info
& BTUSB_CSR
)
913 if (ignore_sniffer
&& id
->driver_info
& BTUSB_SNIFFER
)
916 data
= kzalloc(sizeof(*data
), GFP_KERNEL
);
920 for (i
= 0; i
< intf
->cur_altsetting
->desc
.bNumEndpoints
; i
++) {
921 ep_desc
= &intf
->cur_altsetting
->endpoint
[i
].desc
;
923 if (!data
->intr_ep
&& usb_endpoint_is_int_in(ep_desc
)) {
924 data
->intr_ep
= ep_desc
;
928 if (!data
->bulk_tx_ep
&& usb_endpoint_is_bulk_out(ep_desc
)) {
929 data
->bulk_tx_ep
= ep_desc
;
933 if (!data
->bulk_rx_ep
&& usb_endpoint_is_bulk_in(ep_desc
)) {
934 data
->bulk_rx_ep
= ep_desc
;
939 if (!data
->intr_ep
|| !data
->bulk_tx_ep
|| !data
->bulk_rx_ep
) {
944 data
->cmdreq_type
= USB_TYPE_CLASS
;
946 data
->udev
= interface_to_usbdev(intf
);
949 spin_lock_init(&data
->lock
);
951 INIT_WORK(&data
->work
, btusb_work
);
952 INIT_WORK(&data
->waker
, btusb_waker
);
953 spin_lock_init(&data
->txlock
);
955 init_usb_anchor(&data
->tx_anchor
);
956 init_usb_anchor(&data
->intr_anchor
);
957 init_usb_anchor(&data
->bulk_anchor
);
958 init_usb_anchor(&data
->isoc_anchor
);
959 init_usb_anchor(&data
->deferred
);
961 hdev
= hci_alloc_dev();
968 hdev
->driver_data
= data
;
972 SET_HCIDEV_DEV(hdev
, &intf
->dev
);
974 hdev
->open
= btusb_open
;
975 hdev
->close
= btusb_close
;
976 hdev
->flush
= btusb_flush
;
977 hdev
->send
= btusb_send_frame
;
978 hdev
->destruct
= btusb_destruct
;
979 hdev
->notify
= btusb_notify
;
981 hdev
->owner
= THIS_MODULE
;
983 /* Interface numbers are hardcoded in the specification */
984 data
->isoc
= usb_ifnum_to_if(data
->udev
, 1);
987 set_bit(HCI_QUIRK_NO_RESET
, &hdev
->quirks
);
989 if (force_scofix
|| id
->driver_info
& BTUSB_WRONG_SCO_MTU
) {
991 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE
, &hdev
->quirks
);
994 if (id
->driver_info
& BTUSB_BROKEN_ISOC
)
997 if (id
->driver_info
& BTUSB_DIGIANSWER
) {
998 data
->cmdreq_type
= USB_TYPE_VENDOR
;
999 set_bit(HCI_QUIRK_NO_RESET
, &hdev
->quirks
);
1002 if (id
->driver_info
& BTUSB_CSR
) {
1003 struct usb_device
*udev
= data
->udev
;
1005 /* Old firmware would otherwise execute USB reset */
1006 if (le16_to_cpu(udev
->descriptor
.bcdDevice
) < 0x117)
1007 set_bit(HCI_QUIRK_NO_RESET
, &hdev
->quirks
);
1010 if (id
->driver_info
& BTUSB_SNIFFER
) {
1011 struct usb_device
*udev
= data
->udev
;
1013 /* New sniffer firmware has crippled HCI interface */
1014 if (le16_to_cpu(udev
->descriptor
.bcdDevice
) > 0x997)
1015 set_bit(HCI_QUIRK_RAW_DEVICE
, &hdev
->quirks
);
1020 if (id
->driver_info
& BTUSB_BCM92035
) {
1021 unsigned char cmd
[] = { 0x3b, 0xfc, 0x01, 0x00 };
1022 struct sk_buff
*skb
;
1024 skb
= bt_skb_alloc(sizeof(cmd
), GFP_KERNEL
);
1026 memcpy(skb_put(skb
, sizeof(cmd
)), cmd
, sizeof(cmd
));
1027 skb_queue_tail(&hdev
->driver_init
, skb
);
1032 err
= usb_driver_claim_interface(&btusb_driver
,
1041 err
= hci_register_dev(hdev
);
1048 usb_set_intfdata(intf
, data
);
1053 static void btusb_disconnect(struct usb_interface
*intf
)
1055 struct btusb_data
*data
= usb_get_intfdata(intf
);
1056 struct hci_dev
*hdev
;
1058 BT_DBG("intf %p", intf
);
1065 __hci_dev_hold(hdev
);
1067 usb_set_intfdata(data
->intf
, NULL
);
1070 usb_set_intfdata(data
->isoc
, NULL
);
1072 hci_unregister_dev(hdev
);
1074 if (intf
== data
->isoc
)
1075 usb_driver_release_interface(&btusb_driver
, data
->intf
);
1076 else if (data
->isoc
)
1077 usb_driver_release_interface(&btusb_driver
, data
->isoc
);
1079 __hci_dev_put(hdev
);
1085 static int btusb_suspend(struct usb_interface
*intf
, pm_message_t message
)
1087 struct btusb_data
*data
= usb_get_intfdata(intf
);
1089 BT_DBG("intf %p", intf
);
1091 if (data
->suspend_count
++)
1094 spin_lock_irq(&data
->txlock
);
1095 if (!((message
.event
& PM_EVENT_AUTO
) && data
->tx_in_flight
)) {
1096 set_bit(BTUSB_SUSPENDING
, &data
->flags
);
1097 spin_unlock_irq(&data
->txlock
);
1099 spin_unlock_irq(&data
->txlock
);
1100 data
->suspend_count
--;
1104 cancel_work_sync(&data
->work
);
1106 btusb_stop_traffic(data
);
1107 usb_kill_anchored_urbs(&data
->tx_anchor
);
1112 static void play_deferred(struct btusb_data
*data
)
1117 while ((urb
= usb_get_from_anchor(&data
->deferred
))) {
1118 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
1122 data
->tx_in_flight
++;
1124 usb_scuttle_anchored_urbs(&data
->deferred
);
1127 static int btusb_resume(struct usb_interface
*intf
)
1129 struct btusb_data
*data
= usb_get_intfdata(intf
);
1130 struct hci_dev
*hdev
= data
->hdev
;
1133 BT_DBG("intf %p", intf
);
1135 if (--data
->suspend_count
)
1138 if (!test_bit(HCI_RUNNING
, &hdev
->flags
))
1141 if (test_bit(BTUSB_INTR_RUNNING
, &data
->flags
)) {
1142 err
= btusb_submit_intr_urb(hdev
, GFP_NOIO
);
1144 clear_bit(BTUSB_INTR_RUNNING
, &data
->flags
);
1149 if (test_bit(BTUSB_BULK_RUNNING
, &data
->flags
)) {
1150 err
= btusb_submit_bulk_urb(hdev
, GFP_NOIO
);
1152 clear_bit(BTUSB_BULK_RUNNING
, &data
->flags
);
1156 btusb_submit_bulk_urb(hdev
, GFP_NOIO
);
1159 if (test_bit(BTUSB_ISOC_RUNNING
, &data
->flags
)) {
1160 if (btusb_submit_isoc_urb(hdev
, GFP_NOIO
) < 0)
1161 clear_bit(BTUSB_ISOC_RUNNING
, &data
->flags
);
1163 btusb_submit_isoc_urb(hdev
, GFP_NOIO
);
1166 spin_lock_irq(&data
->txlock
);
1167 play_deferred(data
);
1168 clear_bit(BTUSB_SUSPENDING
, &data
->flags
);
1169 spin_unlock_irq(&data
->txlock
);
1170 schedule_work(&data
->work
);
1175 usb_scuttle_anchored_urbs(&data
->deferred
);
1177 spin_lock_irq(&data
->txlock
);
1178 clear_bit(BTUSB_SUSPENDING
, &data
->flags
);
1179 spin_unlock_irq(&data
->txlock
);
1185 static struct usb_driver btusb_driver
= {
1187 .probe
= btusb_probe
,
1188 .disconnect
= btusb_disconnect
,
1190 .suspend
= btusb_suspend
,
1191 .resume
= btusb_resume
,
1193 .id_table
= btusb_table
,
1194 .supports_autosuspend
= 1,
1197 static int __init
btusb_init(void)
1199 BT_INFO("Generic Bluetooth USB driver ver %s", VERSION
);
1201 return usb_register(&btusb_driver
);
1204 static void __exit
btusb_exit(void)
1206 usb_deregister(&btusb_driver
);
1209 module_init(btusb_init
);
1210 module_exit(btusb_exit
);
1212 module_param(ignore_dga
, bool, 0644);
1213 MODULE_PARM_DESC(ignore_dga
, "Ignore devices with id 08fd:0001");
1215 module_param(ignore_csr
, bool, 0644);
1216 MODULE_PARM_DESC(ignore_csr
, "Ignore devices with id 0a12:0001");
1218 module_param(ignore_sniffer
, bool, 0644);
1219 MODULE_PARM_DESC(ignore_sniffer
, "Ignore devices with id 0a12:0002");
1221 module_param(disable_scofix
, bool, 0644);
1222 MODULE_PARM_DESC(disable_scofix
, "Disable fixup of wrong SCO buffer size");
1224 module_param(force_scofix
, bool, 0644);
1225 MODULE_PARM_DESC(force_scofix
, "Force fixup of wrong SCO buffers size");
1227 module_param(reset
, bool, 0644);
1228 MODULE_PARM_DESC(reset
, "Send HCI reset command on initialization");
1230 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1231 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION
);
1232 MODULE_VERSION(VERSION
);
1233 MODULE_LICENSE("GPL");