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>
38 //#define CONFIG_BT_HCIBTUSB_DEBUG
39 #ifndef CONFIG_BT_HCIBTUSB_DEBUG
46 static int ignore_dga;
47 static int ignore_csr;
48 static int ignore_sniffer;
49 static int disable_scofix;
50 static int force_scofix;
53 static struct usb_driver btusb_driver;
55 #define BTUSB_IGNORE 0x01
56 #define BTUSB_RESET 0x02
57 #define BTUSB_DIGIANSWER 0x04
58 #define BTUSB_CSR 0x08
59 #define BTUSB_SNIFFER 0x10
60 #define BTUSB_BCM92035 0x20
61 #define BTUSB_BROKEN_ISOC 0x40
62 #define BTUSB_WRONG_SCO_MTU 0x80
64 static struct usb_device_id btusb_table[] = {
65 /* Generic Bluetooth USB device */
66 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
68 /* AVM BlueFRITZ! USB v2.0 */
69 { USB_DEVICE(0x057c, 0x3800) },
71 /* Bluetooth Ultraport Module from IBM */
72 { USB_DEVICE(0x04bf, 0x030a) },
74 /* ALPS Modules with non-standard id */
75 { USB_DEVICE(0x044e, 0x3001) },
76 { USB_DEVICE(0x044e, 0x3002) },
78 /* Ericsson with non-standard id */
79 { USB_DEVICE(0x0bdb, 0x1002) },
81 /* Canyon CN-BTU1 with HID interfaces */
82 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_RESET },
84 { } /* Terminating entry */
87 MODULE_DEVICE_TABLE(usb, btusb_table);
89 static struct usb_device_id blacklist_table[] = {
90 /* CSR BlueCore devices */
91 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
93 /* Broadcom BCM2033 without firmware */
94 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
96 /* Broadcom BCM2035 */
97 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_RESET | BTUSB_WRONG_SCO_MTU },
98 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_RESET | BTUSB_WRONG_SCO_MTU },
100 /* Broadcom BCM2045 */
101 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_RESET | BTUSB_WRONG_SCO_MTU },
102 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_RESET | BTUSB_WRONG_SCO_MTU },
104 /* Broadcom BCM2046 */
105 { USB_DEVICE(0x0a5c, 0x2151), .driver_info = BTUSB_RESET },
107 /* Apple MacBook Pro with Broadcom chip */
108 { USB_DEVICE(0x05ac, 0x820f), .driver_info = BTUSB_RESET },
110 /* IBM/Lenovo ThinkPad with Broadcom chip */
111 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_RESET | BTUSB_WRONG_SCO_MTU },
112 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_RESET | BTUSB_WRONG_SCO_MTU },
115 { USB_DEVICE(0x0a5c, 0x2100), .driver_info = BTUSB_RESET },
117 /* ANYCOM Bluetooth USB-200 and USB-250 */
118 { USB_DEVICE(0x0a5c, 0x2111), .driver_info = BTUSB_RESET },
120 /* HP laptop with Broadcom chip */
121 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_RESET | BTUSB_WRONG_SCO_MTU },
123 /* Dell laptop with Broadcom chip */
124 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_RESET | BTUSB_WRONG_SCO_MTU },
126 /* Dell Wireless 370 */
127 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_RESET | BTUSB_WRONG_SCO_MTU },
129 /* Dell Wireless 410 */
130 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_RESET | BTUSB_WRONG_SCO_MTU },
132 /* Microsoft Wireless Transceiver for Bluetooth 2.0 */
133 { USB_DEVICE(0x045e, 0x009c), .driver_info = BTUSB_RESET },
135 /* Kensington Bluetooth USB adapter */
136 { USB_DEVICE(0x047d, 0x105d), .driver_info = BTUSB_RESET },
137 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_RESET | BTUSB_WRONG_SCO_MTU },
139 /* ISSC Bluetooth Adapter v3.1 */
140 { USB_DEVICE(0x1131, 0x1001), .driver_info = BTUSB_RESET },
142 /* RTX Telecom based adapters with buggy SCO support */
143 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
144 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
146 /* CONWISE Technology based adapters with buggy SCO support */
147 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
149 /* Belkin F8T012 and F8T013 devices */
150 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_RESET | BTUSB_WRONG_SCO_MTU },
151 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_RESET | BTUSB_WRONG_SCO_MTU },
153 /* Digianswer devices */
154 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
155 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
157 /* CSR BlueCore Bluetooth Sniffer */
158 { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
160 /* Frontline ComProbe Bluetooth Sniffer */
161 { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
163 { } /* Terminating entry */
166 #define BTUSB_MAX_ISOC_FRAMES 10
168 #define BTUSB_INTR_RUNNING 0
169 #define BTUSB_BULK_RUNNING 1
170 #define BTUSB_ISOC_RUNNING 2
173 struct hci_dev *hdev;
174 struct usb_device *udev;
175 struct usb_interface *intf;
176 struct usb_interface *isoc;
182 struct work_struct work;
184 struct usb_anchor tx_anchor;
185 struct usb_anchor intr_anchor;
186 struct usb_anchor bulk_anchor;
187 struct usb_anchor isoc_anchor;
189 struct usb_endpoint_descriptor *intr_ep;
190 struct usb_endpoint_descriptor *bulk_tx_ep;
191 struct usb_endpoint_descriptor *bulk_rx_ep;
192 struct usb_endpoint_descriptor *isoc_tx_ep;
193 struct usb_endpoint_descriptor *isoc_rx_ep;
198 static void btusb_intr_complete(struct urb *urb)
200 struct hci_dev *hdev = urb->context;
201 struct btusb_data *data = hdev->driver_data;
204 BT_DBG("%s urb %p status %d count %d", hdev->name,
205 urb, urb->status, urb->actual_length);
207 if (!test_bit(HCI_RUNNING, &hdev->flags))
210 if (urb->status == 0) {
211 hdev->stat.byte_rx += urb->actual_length;
213 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
214 urb->transfer_buffer,
215 urb->actual_length) < 0) {
216 BT_ERR("%s corrupted event packet", hdev->name);
221 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
224 usb_anchor_urb(urb, &data->intr_anchor);
226 err = usb_submit_urb(urb, GFP_ATOMIC);
228 BT_ERR("%s urb %p failed to resubmit (%d)",
229 hdev->name, urb, -err);
230 usb_unanchor_urb(urb);
234 static int btusb_submit_intr_urb(struct hci_dev *hdev)
236 struct btusb_data *data = hdev->driver_data;
242 BT_DBG("%s", hdev->name);
247 urb = usb_alloc_urb(0, GFP_ATOMIC);
251 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
253 buf = kmalloc(size, GFP_ATOMIC);
259 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
261 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
262 btusb_intr_complete, hdev,
263 data->intr_ep->bInterval);
265 urb->transfer_flags |= URB_FREE_BUFFER;
267 usb_anchor_urb(urb, &data->intr_anchor);
269 err = usb_submit_urb(urb, GFP_ATOMIC);
271 BT_ERR("%s urb %p submission failed (%d)",
272 hdev->name, urb, -err);
273 usb_unanchor_urb(urb);
281 static void btusb_bulk_complete(struct urb *urb)
283 struct hci_dev *hdev = urb->context;
284 struct btusb_data *data = hdev->driver_data;
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_ACLDATA_PKT,
297 urb->transfer_buffer,
298 urb->actual_length) < 0) {
299 BT_ERR("%s corrupted ACL packet", hdev->name);
304 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
307 usb_anchor_urb(urb, &data->bulk_anchor);
309 err = usb_submit_urb(urb, GFP_ATOMIC);
311 BT_ERR("%s urb %p failed to resubmit (%d)",
312 hdev->name, urb, -err);
313 usb_unanchor_urb(urb);
317 static int btusb_submit_bulk_urb(struct hci_dev *hdev)
319 struct btusb_data *data = hdev->driver_data;
325 BT_DBG("%s", hdev->name);
327 if (!data->bulk_rx_ep)
330 urb = usb_alloc_urb(0, GFP_KERNEL);
334 size = le16_to_cpu(data->bulk_rx_ep->wMaxPacketSize);
336 buf = kmalloc(size, GFP_KERNEL);
342 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
344 usb_fill_bulk_urb(urb, data->udev, pipe,
345 buf, size, btusb_bulk_complete, hdev);
347 urb->transfer_flags |= URB_FREE_BUFFER;
349 usb_anchor_urb(urb, &data->bulk_anchor);
351 err = usb_submit_urb(urb, GFP_KERNEL);
353 BT_ERR("%s urb %p submission failed (%d)",
354 hdev->name, urb, -err);
355 usb_unanchor_urb(urb);
363 static void btusb_isoc_complete(struct urb *urb)
365 struct hci_dev *hdev = urb->context;
366 struct btusb_data *data = hdev->driver_data;
369 BT_DBG("%s urb %p status %d count %d", hdev->name,
370 urb, urb->status, urb->actual_length);
372 if (!test_bit(HCI_RUNNING, &hdev->flags))
375 if (urb->status == 0) {
376 for (i = 0; i < urb->number_of_packets; i++) {
377 unsigned int offset = urb->iso_frame_desc[i].offset;
378 unsigned int length = urb->iso_frame_desc[i].actual_length;
380 if (urb->iso_frame_desc[i].status)
383 hdev->stat.byte_rx += length;
385 if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
386 urb->transfer_buffer + offset,
388 BT_ERR("%s corrupted SCO packet", hdev->name);
394 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
397 usb_anchor_urb(urb, &data->isoc_anchor);
399 err = usb_submit_urb(urb, GFP_ATOMIC);
401 BT_ERR("%s urb %p failed to resubmit (%d)",
402 hdev->name, urb, -err);
403 usb_unanchor_urb(urb);
407 static void inline __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
411 BT_DBG("len %d mtu %d", len, mtu);
413 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
414 i++, offset += mtu, len -= mtu) {
415 urb->iso_frame_desc[i].offset = offset;
416 urb->iso_frame_desc[i].length = mtu;
419 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
420 urb->iso_frame_desc[i].offset = offset;
421 urb->iso_frame_desc[i].length = len;
425 urb->number_of_packets = i;
428 static int btusb_submit_isoc_urb(struct hci_dev *hdev)
430 struct btusb_data *data = hdev->driver_data;
436 BT_DBG("%s", hdev->name);
438 if (!data->isoc_rx_ep)
441 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
445 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
446 BTUSB_MAX_ISOC_FRAMES;
448 buf = kmalloc(size, GFP_KERNEL);
454 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
456 urb->dev = data->udev;
459 urb->complete = btusb_isoc_complete;
460 urb->interval = data->isoc_rx_ep->bInterval;
462 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
463 urb->transfer_buffer = buf;
464 urb->transfer_buffer_length = size;
466 __fill_isoc_descriptor(urb, size,
467 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
469 usb_anchor_urb(urb, &data->isoc_anchor);
471 err = usb_submit_urb(urb, GFP_KERNEL);
473 BT_ERR("%s urb %p submission failed (%d)",
474 hdev->name, urb, -err);
475 usb_unanchor_urb(urb);
483 static void btusb_tx_complete(struct urb *urb)
485 struct sk_buff *skb = urb->context;
486 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
488 BT_DBG("%s urb %p status %d count %d", hdev->name,
489 urb, urb->status, urb->actual_length);
491 if (!test_bit(HCI_RUNNING, &hdev->flags))
495 hdev->stat.byte_tx += urb->transfer_buffer_length;
500 kfree(urb->setup_packet);
505 static int btusb_open(struct hci_dev *hdev)
507 struct btusb_data *data = hdev->driver_data;
510 BT_DBG("%s", hdev->name);
512 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
515 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
518 err = btusb_submit_intr_urb(hdev);
520 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
521 clear_bit(HCI_RUNNING, &hdev->flags);
527 static int btusb_close(struct hci_dev *hdev)
529 struct btusb_data *data = hdev->driver_data;
531 BT_DBG("%s", hdev->name);
533 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
536 cancel_work_sync(&data->work);
538 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
539 usb_kill_anchored_urbs(&data->isoc_anchor);
541 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
542 usb_kill_anchored_urbs(&data->bulk_anchor);
544 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
545 usb_kill_anchored_urbs(&data->intr_anchor);
550 static int btusb_flush(struct hci_dev *hdev)
552 struct btusb_data *data = hdev->driver_data;
554 BT_DBG("%s", hdev->name);
556 usb_kill_anchored_urbs(&data->tx_anchor);
561 static int btusb_send_frame(struct sk_buff *skb)
563 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
564 struct btusb_data *data = hdev->driver_data;
565 struct usb_ctrlrequest *dr;
570 BT_DBG("%s", hdev->name);
572 if (!test_bit(HCI_RUNNING, &hdev->flags))
575 switch (bt_cb(skb)->pkt_type) {
576 case HCI_COMMAND_PKT:
577 urb = usb_alloc_urb(0, GFP_ATOMIC);
581 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
587 dr->bRequestType = USB_TYPE_CLASS;
591 dr->wLength = __cpu_to_le16(skb->len);
593 pipe = usb_sndctrlpipe(data->udev, 0x00);
595 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
596 skb->data, skb->len, btusb_tx_complete, skb);
601 case HCI_ACLDATA_PKT:
602 if (!data->bulk_tx_ep || hdev->conn_hash.acl_num < 1)
605 urb = usb_alloc_urb(0, GFP_ATOMIC);
609 pipe = usb_sndbulkpipe(data->udev,
610 data->bulk_tx_ep->bEndpointAddress);
612 usb_fill_bulk_urb(urb, data->udev, pipe,
613 skb->data, skb->len, btusb_tx_complete, skb);
618 case HCI_SCODATA_PKT:
619 if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
622 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
626 pipe = usb_sndisocpipe(data->udev,
627 data->isoc_tx_ep->bEndpointAddress);
629 urb->dev = data->udev;
632 urb->complete = btusb_tx_complete;
633 urb->interval = data->isoc_tx_ep->bInterval;
635 urb->transfer_flags = URB_ISO_ASAP;
636 urb->transfer_buffer = skb->data;
637 urb->transfer_buffer_length = skb->len;
639 __fill_isoc_descriptor(urb, skb->len,
640 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
649 usb_anchor_urb(urb, &data->tx_anchor);
651 err = usb_submit_urb(urb, GFP_ATOMIC);
653 BT_ERR("%s urb %p submission failed", hdev->name, urb);
654 kfree(urb->setup_packet);
655 usb_unanchor_urb(urb);
663 static void btusb_destruct(struct hci_dev *hdev)
665 struct btusb_data *data = hdev->driver_data;
667 BT_DBG("%s", hdev->name);
672 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
674 struct btusb_data *data = hdev->driver_data;
676 BT_DBG("%s evt %d", hdev->name, evt);
678 if (evt == HCI_NOTIFY_CONN_ADD || evt == HCI_NOTIFY_CONN_DEL)
679 schedule_work(&data->work);
682 static int inline __set_isoc_interface(struct hci_dev *hdev, int altsetting)
684 struct btusb_data *data = hdev->driver_data;
685 struct usb_interface *intf = data->isoc;
686 struct usb_endpoint_descriptor *ep_desc;
692 err = usb_set_interface(data->udev, 1, altsetting);
694 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
698 data->isoc_altsetting = altsetting;
700 data->isoc_tx_ep = NULL;
701 data->isoc_rx_ep = NULL;
703 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
704 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
706 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
707 data->isoc_tx_ep = ep_desc;
711 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
712 data->isoc_rx_ep = ep_desc;
717 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
718 BT_ERR("%s invalid SCO descriptors", hdev->name);
725 static void btusb_work(struct work_struct *work)
727 struct btusb_data *data = container_of(work, struct btusb_data, work);
728 struct hci_dev *hdev = data->hdev;
730 if (hdev->conn_hash.acl_num > 0) {
731 if (!test_and_set_bit(BTUSB_BULK_RUNNING, &data->flags)) {
732 if (btusb_submit_bulk_urb(hdev) < 0)
733 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
735 btusb_submit_bulk_urb(hdev);
738 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
739 usb_kill_anchored_urbs(&data->bulk_anchor);
742 if (hdev->conn_hash.sco_num > 0) {
743 if (data->isoc_altsetting != 2) {
744 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
745 usb_kill_anchored_urbs(&data->isoc_anchor);
747 if (__set_isoc_interface(hdev, 2) < 0)
751 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
752 if (btusb_submit_isoc_urb(hdev) < 0)
753 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
755 btusb_submit_isoc_urb(hdev);
758 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
759 usb_kill_anchored_urbs(&data->isoc_anchor);
761 __set_isoc_interface(hdev, 0);
765 static int btusb_probe(struct usb_interface *intf,
766 const struct usb_device_id *id)
768 struct usb_endpoint_descriptor *ep_desc;
769 struct btusb_data *data;
770 struct hci_dev *hdev;
773 BT_DBG("intf %p id %p", intf, id);
775 /* interface numbers are hardcoded in the spec */
776 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
779 if (!id->driver_info) {
780 const struct usb_device_id *match;
781 match = usb_match_id(intf, blacklist_table);
786 if (id->driver_info == BTUSB_IGNORE)
789 if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
792 if (ignore_csr && id->driver_info & BTUSB_CSR)
795 if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
798 data = kzalloc(sizeof(*data), GFP_KERNEL);
802 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
803 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
805 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
806 data->intr_ep = ep_desc;
810 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
811 data->bulk_tx_ep = ep_desc;
815 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
816 data->bulk_rx_ep = ep_desc;
821 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {
826 data->udev = interface_to_usbdev(intf);
829 spin_lock_init(&data->lock);
831 INIT_WORK(&data->work, btusb_work);
833 init_usb_anchor(&data->tx_anchor);
834 init_usb_anchor(&data->intr_anchor);
835 init_usb_anchor(&data->bulk_anchor);
836 init_usb_anchor(&data->isoc_anchor);
838 hdev = hci_alloc_dev();
844 hdev->type = HCI_USB;
845 hdev->driver_data = data;
849 SET_HCIDEV_DEV(hdev, &intf->dev);
851 hdev->open = btusb_open;
852 hdev->close = btusb_close;
853 hdev->flush = btusb_flush;
854 hdev->send = btusb_send_frame;
855 hdev->destruct = btusb_destruct;
856 hdev->notify = btusb_notify;
858 hdev->owner = THIS_MODULE;
860 /* interface numbers are hardcoded in the spec */
861 data->isoc = usb_ifnum_to_if(data->udev, 1);
863 if (reset || id->driver_info & BTUSB_RESET)
864 set_bit(HCI_QUIRK_RESET_ON_INIT, &hdev->quirks);
866 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
868 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
871 if (id->driver_info & BTUSB_BROKEN_ISOC)
874 if (id->driver_info & BTUSB_SNIFFER) {
875 struct usb_device *udev = data->udev;
877 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
878 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
883 if (id->driver_info & BTUSB_BCM92035) {
884 unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 };
887 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
889 memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
890 skb_queue_tail(&hdev->driver_init, skb);
895 err = usb_driver_claim_interface(&btusb_driver,
904 err = hci_register_dev(hdev);
911 usb_set_intfdata(intf, data);
916 static void btusb_disconnect(struct usb_interface *intf)
918 struct btusb_data *data = usb_get_intfdata(intf);
919 struct hci_dev *hdev;
921 BT_DBG("intf %p", intf);
928 __hci_dev_hold(hdev);
930 usb_set_intfdata(data->intf, NULL);
933 usb_set_intfdata(data->isoc, NULL);
935 hci_unregister_dev(hdev);
937 if (intf == data->isoc)
938 usb_driver_release_interface(&btusb_driver, data->intf);
940 usb_driver_release_interface(&btusb_driver, data->isoc);
947 static struct usb_driver btusb_driver = {
949 .probe = btusb_probe,
950 .disconnect = btusb_disconnect,
951 .id_table = btusb_table,
954 static int __init btusb_init(void)
956 BT_INFO("Generic Bluetooth USB driver ver %s", VERSION);
958 return usb_register(&btusb_driver);
961 static void __exit btusb_exit(void)
963 usb_deregister(&btusb_driver);
966 module_init(btusb_init);
967 module_exit(btusb_exit);
969 module_param(ignore_dga, bool, 0644);
970 MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
972 module_param(ignore_csr, bool, 0644);
973 MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
975 module_param(ignore_sniffer, bool, 0644);
976 MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
978 module_param(disable_scofix, bool, 0644);
979 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
981 module_param(force_scofix, bool, 0644);
982 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
984 module_param(reset, bool, 0644);
985 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
987 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
988 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
989 MODULE_VERSION(VERSION);
990 MODULE_LICENSE("GPL");