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 /* AVM BlueFRITZ! USB v2.0 */
63 { USB_DEVICE(0x057c, 0x3800) },
65 /* Bluetooth Ultraport Module from IBM */
66 { USB_DEVICE(0x04bf, 0x030a) },
68 /* ALPS Modules with non-standard id */
69 { USB_DEVICE(0x044e, 0x3001) },
70 { USB_DEVICE(0x044e, 0x3002) },
72 /* Ericsson with non-standard id */
73 { USB_DEVICE(0x0bdb, 0x1002) },
75 /* Canyon CN-BTU1 with HID interfaces */
76 { USB_DEVICE(0x0c10, 0x0000) },
78 { } /* Terminating entry */
81 MODULE_DEVICE_TABLE(usb, btusb_table);
83 static struct usb_device_id blacklist_table[] = {
84 /* CSR BlueCore devices */
85 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
87 /* Broadcom BCM2033 without firmware */
88 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
90 /* Broadcom BCM2035 */
91 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
92 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
93 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
95 /* Broadcom BCM2045 */
96 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
97 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
99 /* IBM/Lenovo ThinkPad with Broadcom chip */
100 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
101 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
103 /* HP laptop with Broadcom chip */
104 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
106 /* Dell laptop with Broadcom chip */
107 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
109 /* Dell Wireless 370 and 410 devices */
110 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
111 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
113 /* Belkin F8T012 and F8T013 devices */
114 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
115 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
117 /* Asus WL-BTD202 device */
118 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
120 /* Kensington Bluetooth USB adapter */
121 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
123 /* RTX Telecom based adapters with buggy SCO support */
124 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
125 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
127 /* CONWISE Technology based adapters with buggy SCO support */
128 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
130 /* Digianswer devices */
131 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
132 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
134 /* CSR BlueCore Bluetooth Sniffer */
135 { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
137 /* Frontline ComProbe Bluetooth Sniffer */
138 { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
140 { } /* Terminating entry */
143 #define BTUSB_MAX_ISOC_FRAMES 10
145 #define BTUSB_INTR_RUNNING 0
146 #define BTUSB_BULK_RUNNING 1
147 #define BTUSB_ISOC_RUNNING 2
150 struct hci_dev *hdev;
151 struct usb_device *udev;
152 struct usb_interface *intf;
153 struct usb_interface *isoc;
159 struct work_struct work;
161 struct usb_anchor tx_anchor;
162 struct usb_anchor intr_anchor;
163 struct usb_anchor bulk_anchor;
164 struct usb_anchor isoc_anchor;
166 struct usb_endpoint_descriptor *intr_ep;
167 struct usb_endpoint_descriptor *bulk_tx_ep;
168 struct usb_endpoint_descriptor *bulk_rx_ep;
169 struct usb_endpoint_descriptor *isoc_tx_ep;
170 struct usb_endpoint_descriptor *isoc_rx_ep;
174 unsigned int sco_num;
179 static void btusb_intr_complete(struct urb *urb)
181 struct hci_dev *hdev = urb->context;
182 struct btusb_data *data = hdev->driver_data;
185 BT_DBG("%s urb %p status %d count %d", hdev->name,
186 urb, urb->status, urb->actual_length);
188 if (!test_bit(HCI_RUNNING, &hdev->flags))
191 if (urb->status == 0) {
192 hdev->stat.byte_rx += urb->actual_length;
194 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
195 urb->transfer_buffer,
196 urb->actual_length) < 0) {
197 BT_ERR("%s corrupted event packet", hdev->name);
202 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
205 usb_anchor_urb(urb, &data->intr_anchor);
207 err = usb_submit_urb(urb, GFP_ATOMIC);
209 BT_ERR("%s urb %p failed to resubmit (%d)",
210 hdev->name, urb, -err);
211 usb_unanchor_urb(urb);
215 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
217 struct btusb_data *data = hdev->driver_data;
223 BT_DBG("%s", hdev->name);
228 urb = usb_alloc_urb(0, mem_flags);
232 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
234 buf = kmalloc(size, mem_flags);
240 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
242 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
243 btusb_intr_complete, hdev,
244 data->intr_ep->bInterval);
246 urb->transfer_flags |= URB_FREE_BUFFER;
248 usb_anchor_urb(urb, &data->intr_anchor);
250 err = usb_submit_urb(urb, mem_flags);
252 BT_ERR("%s urb %p submission failed (%d)",
253 hdev->name, urb, -err);
254 usb_unanchor_urb(urb);
262 static void btusb_bulk_complete(struct urb *urb)
264 struct hci_dev *hdev = urb->context;
265 struct btusb_data *data = hdev->driver_data;
268 BT_DBG("%s urb %p status %d count %d", hdev->name,
269 urb, urb->status, urb->actual_length);
271 if (!test_bit(HCI_RUNNING, &hdev->flags))
274 if (urb->status == 0) {
275 hdev->stat.byte_rx += urb->actual_length;
277 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
278 urb->transfer_buffer,
279 urb->actual_length) < 0) {
280 BT_ERR("%s corrupted ACL packet", hdev->name);
285 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
288 usb_anchor_urb(urb, &data->bulk_anchor);
290 err = usb_submit_urb(urb, GFP_ATOMIC);
292 BT_ERR("%s urb %p failed to resubmit (%d)",
293 hdev->name, urb, -err);
294 usb_unanchor_urb(urb);
298 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
300 struct btusb_data *data = hdev->driver_data;
304 int err, size = HCI_MAX_FRAME_SIZE;
306 BT_DBG("%s", hdev->name);
308 if (!data->bulk_rx_ep)
311 urb = usb_alloc_urb(0, mem_flags);
315 buf = kmalloc(size, mem_flags);
321 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
323 usb_fill_bulk_urb(urb, data->udev, pipe,
324 buf, size, btusb_bulk_complete, hdev);
326 urb->transfer_flags |= URB_FREE_BUFFER;
328 usb_anchor_urb(urb, &data->bulk_anchor);
330 err = usb_submit_urb(urb, mem_flags);
332 BT_ERR("%s urb %p submission failed (%d)",
333 hdev->name, urb, -err);
334 usb_unanchor_urb(urb);
342 static void btusb_isoc_complete(struct urb *urb)
344 struct hci_dev *hdev = urb->context;
345 struct btusb_data *data = hdev->driver_data;
348 BT_DBG("%s urb %p status %d count %d", hdev->name,
349 urb, urb->status, urb->actual_length);
351 if (!test_bit(HCI_RUNNING, &hdev->flags))
354 if (urb->status == 0) {
355 for (i = 0; i < urb->number_of_packets; i++) {
356 unsigned int offset = urb->iso_frame_desc[i].offset;
357 unsigned int length = urb->iso_frame_desc[i].actual_length;
359 if (urb->iso_frame_desc[i].status)
362 hdev->stat.byte_rx += length;
364 if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
365 urb->transfer_buffer + offset,
367 BT_ERR("%s corrupted SCO packet", hdev->name);
373 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
376 usb_anchor_urb(urb, &data->isoc_anchor);
378 err = usb_submit_urb(urb, GFP_ATOMIC);
380 BT_ERR("%s urb %p failed to resubmit (%d)",
381 hdev->name, urb, -err);
382 usb_unanchor_urb(urb);
386 static void inline __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
390 BT_DBG("len %d mtu %d", len, mtu);
392 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
393 i++, offset += mtu, len -= mtu) {
394 urb->iso_frame_desc[i].offset = offset;
395 urb->iso_frame_desc[i].length = mtu;
398 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
399 urb->iso_frame_desc[i].offset = offset;
400 urb->iso_frame_desc[i].length = len;
404 urb->number_of_packets = i;
407 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
409 struct btusb_data *data = hdev->driver_data;
415 BT_DBG("%s", hdev->name);
417 if (!data->isoc_rx_ep)
420 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
424 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
425 BTUSB_MAX_ISOC_FRAMES;
427 buf = kmalloc(size, mem_flags);
433 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
435 urb->dev = data->udev;
438 urb->complete = btusb_isoc_complete;
439 urb->interval = data->isoc_rx_ep->bInterval;
441 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
442 urb->transfer_buffer = buf;
443 urb->transfer_buffer_length = size;
445 __fill_isoc_descriptor(urb, size,
446 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
448 usb_anchor_urb(urb, &data->isoc_anchor);
450 err = usb_submit_urb(urb, mem_flags);
452 BT_ERR("%s urb %p submission failed (%d)",
453 hdev->name, urb, -err);
454 usb_unanchor_urb(urb);
462 static void btusb_tx_complete(struct urb *urb)
464 struct sk_buff *skb = urb->context;
465 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
467 BT_DBG("%s urb %p status %d count %d", hdev->name,
468 urb, urb->status, urb->actual_length);
470 if (!test_bit(HCI_RUNNING, &hdev->flags))
474 hdev->stat.byte_tx += urb->transfer_buffer_length;
479 kfree(urb->setup_packet);
484 static int btusb_open(struct hci_dev *hdev)
486 struct btusb_data *data = hdev->driver_data;
489 BT_DBG("%s", hdev->name);
491 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
494 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
497 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
501 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
503 usb_kill_anchored_urbs(&data->intr_anchor);
507 set_bit(BTUSB_BULK_RUNNING, &data->flags);
508 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
513 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
514 clear_bit(HCI_RUNNING, &hdev->flags);
518 static int btusb_close(struct hci_dev *hdev)
520 struct btusb_data *data = hdev->driver_data;
522 BT_DBG("%s", hdev->name);
524 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
527 cancel_work_sync(&data->work);
529 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
530 usb_kill_anchored_urbs(&data->isoc_anchor);
532 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
533 usb_kill_anchored_urbs(&data->bulk_anchor);
535 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
536 usb_kill_anchored_urbs(&data->intr_anchor);
541 static int btusb_flush(struct hci_dev *hdev)
543 struct btusb_data *data = hdev->driver_data;
545 BT_DBG("%s", hdev->name);
547 usb_kill_anchored_urbs(&data->tx_anchor);
552 static int btusb_send_frame(struct sk_buff *skb)
554 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
555 struct btusb_data *data = hdev->driver_data;
556 struct usb_ctrlrequest *dr;
561 BT_DBG("%s", hdev->name);
563 if (!test_bit(HCI_RUNNING, &hdev->flags))
566 switch (bt_cb(skb)->pkt_type) {
567 case HCI_COMMAND_PKT:
568 urb = usb_alloc_urb(0, GFP_ATOMIC);
572 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
578 dr->bRequestType = data->cmdreq_type;
582 dr->wLength = __cpu_to_le16(skb->len);
584 pipe = usb_sndctrlpipe(data->udev, 0x00);
586 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
587 skb->data, skb->len, btusb_tx_complete, skb);
592 case HCI_ACLDATA_PKT:
593 if (!data->bulk_tx_ep || hdev->conn_hash.acl_num < 1)
596 urb = usb_alloc_urb(0, GFP_ATOMIC);
600 pipe = usb_sndbulkpipe(data->udev,
601 data->bulk_tx_ep->bEndpointAddress);
603 usb_fill_bulk_urb(urb, data->udev, pipe,
604 skb->data, skb->len, btusb_tx_complete, skb);
609 case HCI_SCODATA_PKT:
610 if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
613 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
617 pipe = usb_sndisocpipe(data->udev,
618 data->isoc_tx_ep->bEndpointAddress);
620 urb->dev = data->udev;
623 urb->complete = btusb_tx_complete;
624 urb->interval = data->isoc_tx_ep->bInterval;
626 urb->transfer_flags = URB_ISO_ASAP;
627 urb->transfer_buffer = skb->data;
628 urb->transfer_buffer_length = skb->len;
630 __fill_isoc_descriptor(urb, skb->len,
631 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
640 usb_anchor_urb(urb, &data->tx_anchor);
642 err = usb_submit_urb(urb, GFP_ATOMIC);
644 BT_ERR("%s urb %p submission failed", hdev->name, urb);
645 kfree(urb->setup_packet);
646 usb_unanchor_urb(urb);
654 static void btusb_destruct(struct hci_dev *hdev)
656 struct btusb_data *data = hdev->driver_data;
658 BT_DBG("%s", hdev->name);
663 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
665 struct btusb_data *data = hdev->driver_data;
667 BT_DBG("%s evt %d", hdev->name, evt);
669 if (hdev->conn_hash.sco_num != data->sco_num) {
670 data->sco_num = hdev->conn_hash.sco_num;
671 schedule_work(&data->work);
675 static int inline __set_isoc_interface(struct hci_dev *hdev, int altsetting)
677 struct btusb_data *data = hdev->driver_data;
678 struct usb_interface *intf = data->isoc;
679 struct usb_endpoint_descriptor *ep_desc;
685 err = usb_set_interface(data->udev, 1, altsetting);
687 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
691 data->isoc_altsetting = altsetting;
693 data->isoc_tx_ep = NULL;
694 data->isoc_rx_ep = NULL;
696 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
697 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
699 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
700 data->isoc_tx_ep = ep_desc;
704 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
705 data->isoc_rx_ep = ep_desc;
710 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
711 BT_ERR("%s invalid SCO descriptors", hdev->name);
718 static void btusb_work(struct work_struct *work)
720 struct btusb_data *data = container_of(work, struct btusb_data, work);
721 struct hci_dev *hdev = data->hdev;
723 if (hdev->conn_hash.sco_num > 0) {
724 if (data->isoc_altsetting != 2) {
725 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
726 usb_kill_anchored_urbs(&data->isoc_anchor);
728 if (__set_isoc_interface(hdev, 2) < 0)
732 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
733 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
734 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
736 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
739 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
740 usb_kill_anchored_urbs(&data->isoc_anchor);
742 __set_isoc_interface(hdev, 0);
746 static int btusb_probe(struct usb_interface *intf,
747 const struct usb_device_id *id)
749 struct usb_endpoint_descriptor *ep_desc;
750 struct btusb_data *data;
751 struct hci_dev *hdev;
754 BT_DBG("intf %p id %p", intf, id);
756 /* interface numbers are hardcoded in the spec */
757 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
760 if (!id->driver_info) {
761 const struct usb_device_id *match;
762 match = usb_match_id(intf, blacklist_table);
767 if (id->driver_info == BTUSB_IGNORE)
770 if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
773 if (ignore_csr && id->driver_info & BTUSB_CSR)
776 if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
779 data = kzalloc(sizeof(*data), GFP_KERNEL);
783 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
784 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
786 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
787 data->intr_ep = ep_desc;
791 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
792 data->bulk_tx_ep = ep_desc;
796 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
797 data->bulk_rx_ep = ep_desc;
802 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {
807 data->cmdreq_type = USB_TYPE_CLASS;
809 data->udev = interface_to_usbdev(intf);
812 spin_lock_init(&data->lock);
814 INIT_WORK(&data->work, btusb_work);
816 init_usb_anchor(&data->tx_anchor);
817 init_usb_anchor(&data->intr_anchor);
818 init_usb_anchor(&data->bulk_anchor);
819 init_usb_anchor(&data->isoc_anchor);
821 hdev = hci_alloc_dev();
827 hdev->type = HCI_USB;
828 hdev->driver_data = data;
832 SET_HCIDEV_DEV(hdev, &intf->dev);
834 hdev->open = btusb_open;
835 hdev->close = btusb_close;
836 hdev->flush = btusb_flush;
837 hdev->send = btusb_send_frame;
838 hdev->destruct = btusb_destruct;
839 hdev->notify = btusb_notify;
841 hdev->owner = THIS_MODULE;
843 /* Interface numbers are hardcoded in the specification */
844 data->isoc = usb_ifnum_to_if(data->udev, 1);
847 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
849 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
851 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
854 if (id->driver_info & BTUSB_BROKEN_ISOC)
857 if (id->driver_info & BTUSB_DIGIANSWER) {
858 data->cmdreq_type = USB_TYPE_VENDOR;
859 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
862 if (id->driver_info & BTUSB_CSR) {
863 struct usb_device *udev = data->udev;
865 /* Old firmware would otherwise execute USB reset */
866 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
867 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
870 if (id->driver_info & BTUSB_SNIFFER) {
871 struct usb_device *udev = data->udev;
873 /* New sniffer firmware has crippled HCI interface */
874 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
875 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
880 if (id->driver_info & BTUSB_BCM92035) {
881 unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 };
884 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
886 memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
887 skb_queue_tail(&hdev->driver_init, skb);
892 err = usb_driver_claim_interface(&btusb_driver,
901 err = hci_register_dev(hdev);
908 usb_set_intfdata(intf, data);
913 static void btusb_disconnect(struct usb_interface *intf)
915 struct btusb_data *data = usb_get_intfdata(intf);
916 struct hci_dev *hdev;
918 BT_DBG("intf %p", intf);
925 __hci_dev_hold(hdev);
927 usb_set_intfdata(data->intf, NULL);
930 usb_set_intfdata(data->isoc, NULL);
932 hci_unregister_dev(hdev);
934 if (intf == data->isoc)
935 usb_driver_release_interface(&btusb_driver, data->intf);
937 usb_driver_release_interface(&btusb_driver, data->isoc);
944 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
946 struct btusb_data *data = usb_get_intfdata(intf);
948 BT_DBG("intf %p", intf);
950 if (data->suspend_count++)
953 cancel_work_sync(&data->work);
955 usb_kill_anchored_urbs(&data->tx_anchor);
957 usb_kill_anchored_urbs(&data->isoc_anchor);
958 usb_kill_anchored_urbs(&data->bulk_anchor);
959 usb_kill_anchored_urbs(&data->intr_anchor);
964 static int btusb_resume(struct usb_interface *intf)
966 struct btusb_data *data = usb_get_intfdata(intf);
967 struct hci_dev *hdev = data->hdev;
970 BT_DBG("intf %p", intf);
972 if (--data->suspend_count)
975 if (!test_bit(HCI_RUNNING, &hdev->flags))
978 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
979 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
981 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
986 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
987 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
989 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
992 btusb_submit_bulk_urb(hdev, GFP_NOIO);
995 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
996 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
997 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
999 btusb_submit_isoc_urb(hdev, GFP_NOIO);
1005 static struct usb_driver btusb_driver = {
1007 .probe = btusb_probe,
1008 .disconnect = btusb_disconnect,
1009 .suspend = btusb_suspend,
1010 .resume = btusb_resume,
1011 .id_table = btusb_table,
1014 static int __init btusb_init(void)
1016 BT_INFO("Generic Bluetooth USB driver ver %s", VERSION);
1018 return usb_register(&btusb_driver);
1021 static void __exit btusb_exit(void)
1023 usb_deregister(&btusb_driver);
1026 module_init(btusb_init);
1027 module_exit(btusb_exit);
1029 module_param(ignore_dga, bool, 0644);
1030 MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1032 module_param(ignore_csr, bool, 0644);
1033 MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1035 module_param(ignore_sniffer, bool, 0644);
1036 MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1038 module_param(disable_scofix, bool, 0644);
1039 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1041 module_param(force_scofix, bool, 0644);
1042 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1044 module_param(reset, bool, 0644);
1045 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1047 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1048 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1049 MODULE_VERSION(VERSION);
1050 MODULE_LICENSE("GPL");