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
57 #define BTUSB_ATH3012 0x80
59 static struct usb_device_id btusb_table[] = {
60 /* Generic Bluetooth USB device */
61 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
63 /* Apple MacBookPro 7,1 */
64 { USB_DEVICE(0x05ac, 0x8213) },
67 { USB_DEVICE(0x05ac, 0x8215) },
69 /* Apple MacBookPro6,2 */
70 { USB_DEVICE(0x05ac, 0x8218) },
72 /* Apple MacBookAir3,1, MacBookAir3,2 */
73 { USB_DEVICE(0x05ac, 0x821b) },
75 /* Apple MacBookPro8,2 */
76 { USB_DEVICE(0x05ac, 0x821a) },
78 /* AVM BlueFRITZ! USB v2.0 */
79 { USB_DEVICE(0x057c, 0x3800) },
81 /* Bluetooth Ultraport Module from IBM */
82 { USB_DEVICE(0x04bf, 0x030a) },
84 /* ALPS Modules with non-standard id */
85 { USB_DEVICE(0x044e, 0x3001) },
86 { USB_DEVICE(0x044e, 0x3002) },
88 /* Ericsson with non-standard id */
89 { USB_DEVICE(0x0bdb, 0x1002) },
91 /* Canyon CN-BTU1 with HID interfaces */
92 { USB_DEVICE(0x0c10, 0x0000) },
94 { } /* Terminating entry */
97 MODULE_DEVICE_TABLE(usb, btusb_table);
99 static struct usb_device_id blacklist_table[] = {
100 /* CSR BlueCore devices */
101 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
103 /* Broadcom BCM2033 without firmware */
104 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
106 /* Atheros 3011 with sflash firmware */
107 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
108 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
110 /* Atheros AR9285 Malbec with sflash firmware */
111 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
113 /* Atheros 3012 with sflash firmware */
114 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
116 /* Atheros AR5BBU12 with sflash firmware */
117 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
119 /* Broadcom BCM2035 */
120 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
121 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
122 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
124 /* Broadcom BCM2045 */
125 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
126 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
128 /* IBM/Lenovo ThinkPad with Broadcom chip */
129 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
130 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
132 /* HP laptop with Broadcom chip */
133 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
135 /* Dell laptop with Broadcom chip */
136 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
138 /* Dell Wireless 370 and 410 devices */
139 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
140 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
142 /* Belkin F8T012 and F8T013 devices */
143 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
144 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
146 /* Asus WL-BTD202 device */
147 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
149 /* Kensington Bluetooth USB adapter */
150 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
152 /* RTX Telecom based adapters with buggy SCO support */
153 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
154 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
156 /* CONWISE Technology based adapters with buggy SCO support */
157 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
159 /* Digianswer devices */
160 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
161 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
163 /* CSR BlueCore Bluetooth Sniffer */
164 { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
166 /* Frontline ComProbe Bluetooth Sniffer */
167 { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
169 { } /* Terminating entry */
172 #define BTUSB_MAX_ISOC_FRAMES 10
174 #define BTUSB_INTR_RUNNING 0
175 #define BTUSB_BULK_RUNNING 1
176 #define BTUSB_ISOC_RUNNING 2
177 #define BTUSB_SUSPENDING 3
178 #define BTUSB_DID_ISO_RESUME 4
181 struct hci_dev *hdev;
182 struct usb_device *udev;
183 struct usb_interface *intf;
184 struct usb_interface *isoc;
190 struct work_struct work;
191 struct work_struct waker;
193 struct usb_anchor tx_anchor;
194 struct usb_anchor intr_anchor;
195 struct usb_anchor bulk_anchor;
196 struct usb_anchor isoc_anchor;
197 struct usb_anchor deferred;
201 struct usb_endpoint_descriptor *intr_ep;
202 struct usb_endpoint_descriptor *bulk_tx_ep;
203 struct usb_endpoint_descriptor *bulk_rx_ep;
204 struct usb_endpoint_descriptor *isoc_tx_ep;
205 struct usb_endpoint_descriptor *isoc_rx_ep;
209 unsigned int sco_num;
214 static int inc_tx(struct btusb_data *data)
219 spin_lock_irqsave(&data->txlock, flags);
220 rv = test_bit(BTUSB_SUSPENDING, &data->flags);
222 data->tx_in_flight++;
223 spin_unlock_irqrestore(&data->txlock, flags);
228 static void btusb_intr_complete(struct urb *urb)
230 struct hci_dev *hdev = urb->context;
231 struct btusb_data *data = hdev->driver_data;
234 BT_DBG("%s urb %p status %d count %d", hdev->name,
235 urb, urb->status, urb->actual_length);
237 if (!test_bit(HCI_RUNNING, &hdev->flags))
240 if (urb->status == 0) {
241 hdev->stat.byte_rx += urb->actual_length;
243 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
244 urb->transfer_buffer,
245 urb->actual_length) < 0) {
246 BT_ERR("%s corrupted event packet", hdev->name);
251 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
254 usb_mark_last_busy(data->udev);
255 usb_anchor_urb(urb, &data->intr_anchor);
257 err = usb_submit_urb(urb, GFP_ATOMIC);
260 BT_ERR("%s urb %p failed to resubmit (%d)",
261 hdev->name, urb, -err);
262 usb_unanchor_urb(urb);
266 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
268 struct btusb_data *data = hdev->driver_data;
274 BT_DBG("%s", hdev->name);
279 urb = usb_alloc_urb(0, mem_flags);
283 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
285 buf = kmalloc(size, mem_flags);
291 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
293 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
294 btusb_intr_complete, hdev,
295 data->intr_ep->bInterval);
297 urb->transfer_flags |= URB_FREE_BUFFER;
299 usb_anchor_urb(urb, &data->intr_anchor);
301 err = usb_submit_urb(urb, mem_flags);
303 BT_ERR("%s urb %p submission failed (%d)",
304 hdev->name, urb, -err);
305 usb_unanchor_urb(urb);
313 static void btusb_bulk_complete(struct urb *urb)
315 struct hci_dev *hdev = urb->context;
316 struct btusb_data *data = hdev->driver_data;
319 BT_DBG("%s urb %p status %d count %d", hdev->name,
320 urb, urb->status, urb->actual_length);
322 if (!test_bit(HCI_RUNNING, &hdev->flags))
325 if (urb->status == 0) {
326 hdev->stat.byte_rx += urb->actual_length;
328 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
329 urb->transfer_buffer,
330 urb->actual_length) < 0) {
331 BT_ERR("%s corrupted ACL packet", hdev->name);
336 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
339 usb_anchor_urb(urb, &data->bulk_anchor);
340 usb_mark_last_busy(data->udev);
342 err = usb_submit_urb(urb, GFP_ATOMIC);
345 BT_ERR("%s urb %p failed to resubmit (%d)",
346 hdev->name, urb, -err);
347 usb_unanchor_urb(urb);
351 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
353 struct btusb_data *data = hdev->driver_data;
357 int err, size = HCI_MAX_FRAME_SIZE;
359 BT_DBG("%s", hdev->name);
361 if (!data->bulk_rx_ep)
364 urb = usb_alloc_urb(0, mem_flags);
368 buf = kmalloc(size, mem_flags);
374 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
376 usb_fill_bulk_urb(urb, data->udev, pipe,
377 buf, size, btusb_bulk_complete, hdev);
379 urb->transfer_flags |= URB_FREE_BUFFER;
381 usb_mark_last_busy(data->udev);
382 usb_anchor_urb(urb, &data->bulk_anchor);
384 err = usb_submit_urb(urb, mem_flags);
386 BT_ERR("%s urb %p submission failed (%d)",
387 hdev->name, urb, -err);
388 usb_unanchor_urb(urb);
396 static void btusb_isoc_complete(struct urb *urb)
398 struct hci_dev *hdev = urb->context;
399 struct btusb_data *data = hdev->driver_data;
402 BT_DBG("%s urb %p status %d count %d", hdev->name,
403 urb, urb->status, urb->actual_length);
405 if (!test_bit(HCI_RUNNING, &hdev->flags))
408 if (urb->status == 0) {
409 for (i = 0; i < urb->number_of_packets; i++) {
410 unsigned int offset = urb->iso_frame_desc[i].offset;
411 unsigned int length = urb->iso_frame_desc[i].actual_length;
413 if (urb->iso_frame_desc[i].status)
416 hdev->stat.byte_rx += length;
418 if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
419 urb->transfer_buffer + offset,
421 BT_ERR("%s corrupted SCO packet", hdev->name);
427 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
430 usb_anchor_urb(urb, &data->isoc_anchor);
432 err = usb_submit_urb(urb, GFP_ATOMIC);
435 BT_ERR("%s urb %p failed to resubmit (%d)",
436 hdev->name, urb, -err);
437 usb_unanchor_urb(urb);
441 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
445 BT_DBG("len %d mtu %d", len, mtu);
447 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
448 i++, offset += mtu, len -= mtu) {
449 urb->iso_frame_desc[i].offset = offset;
450 urb->iso_frame_desc[i].length = mtu;
453 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
454 urb->iso_frame_desc[i].offset = offset;
455 urb->iso_frame_desc[i].length = len;
459 urb->number_of_packets = i;
462 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
464 struct btusb_data *data = hdev->driver_data;
470 BT_DBG("%s", hdev->name);
472 if (!data->isoc_rx_ep)
475 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
479 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
480 BTUSB_MAX_ISOC_FRAMES;
482 buf = kmalloc(size, mem_flags);
488 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
490 urb->dev = data->udev;
493 urb->complete = btusb_isoc_complete;
494 urb->interval = data->isoc_rx_ep->bInterval;
496 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
497 urb->transfer_buffer = buf;
498 urb->transfer_buffer_length = size;
500 __fill_isoc_descriptor(urb, size,
501 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
503 usb_anchor_urb(urb, &data->isoc_anchor);
505 err = usb_submit_urb(urb, mem_flags);
507 BT_ERR("%s urb %p submission failed (%d)",
508 hdev->name, urb, -err);
509 usb_unanchor_urb(urb);
517 static void btusb_tx_complete(struct urb *urb)
519 struct sk_buff *skb = urb->context;
520 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
521 struct btusb_data *data = hdev->driver_data;
523 BT_DBG("%s urb %p status %d count %d", hdev->name,
524 urb, urb->status, urb->actual_length);
526 if (!test_bit(HCI_RUNNING, &hdev->flags))
530 hdev->stat.byte_tx += urb->transfer_buffer_length;
535 spin_lock(&data->txlock);
536 data->tx_in_flight--;
537 spin_unlock(&data->txlock);
539 kfree(urb->setup_packet);
544 static void btusb_isoc_tx_complete(struct urb *urb)
546 struct sk_buff *skb = urb->context;
547 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
549 BT_DBG("%s urb %p status %d count %d", hdev->name,
550 urb, urb->status, urb->actual_length);
552 if (!test_bit(HCI_RUNNING, &hdev->flags))
556 hdev->stat.byte_tx += urb->transfer_buffer_length;
561 kfree(urb->setup_packet);
566 static int btusb_open(struct hci_dev *hdev)
568 struct btusb_data *data = hdev->driver_data;
571 BT_DBG("%s", hdev->name);
573 err = usb_autopm_get_interface(data->intf);
577 data->intf->needs_remote_wakeup = 1;
579 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
582 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
585 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
589 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
591 usb_kill_anchored_urbs(&data->intr_anchor);
595 set_bit(BTUSB_BULK_RUNNING, &data->flags);
596 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
599 usb_autopm_put_interface(data->intf);
603 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
604 clear_bit(HCI_RUNNING, &hdev->flags);
605 usb_autopm_put_interface(data->intf);
609 static void btusb_stop_traffic(struct btusb_data *data)
611 usb_kill_anchored_urbs(&data->intr_anchor);
612 usb_kill_anchored_urbs(&data->bulk_anchor);
613 usb_kill_anchored_urbs(&data->isoc_anchor);
616 static int btusb_close(struct hci_dev *hdev)
618 struct btusb_data *data = hdev->driver_data;
621 BT_DBG("%s", hdev->name);
623 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
626 cancel_work_sync(&data->work);
627 cancel_work_sync(&data->waker);
629 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
630 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
631 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
633 btusb_stop_traffic(data);
634 err = usb_autopm_get_interface(data->intf);
638 data->intf->needs_remote_wakeup = 0;
639 usb_autopm_put_interface(data->intf);
642 usb_scuttle_anchored_urbs(&data->deferred);
646 static int btusb_flush(struct hci_dev *hdev)
648 struct btusb_data *data = hdev->driver_data;
650 BT_DBG("%s", hdev->name);
652 usb_kill_anchored_urbs(&data->tx_anchor);
657 static int btusb_send_frame(struct sk_buff *skb)
659 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
660 struct btusb_data *data = hdev->driver_data;
661 struct usb_ctrlrequest *dr;
666 BT_DBG("%s", hdev->name);
668 if (!test_bit(HCI_RUNNING, &hdev->flags))
671 switch (bt_cb(skb)->pkt_type) {
672 case HCI_COMMAND_PKT:
673 urb = usb_alloc_urb(0, GFP_ATOMIC);
677 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
683 dr->bRequestType = data->cmdreq_type;
687 dr->wLength = __cpu_to_le16(skb->len);
689 pipe = usb_sndctrlpipe(data->udev, 0x00);
691 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
692 skb->data, skb->len, btusb_tx_complete, skb);
697 case HCI_ACLDATA_PKT:
698 if (!data->bulk_tx_ep || (hdev->conn_hash.acl_num < 1 &&
699 hdev->conn_hash.le_num < 1))
702 urb = usb_alloc_urb(0, GFP_ATOMIC);
706 pipe = usb_sndbulkpipe(data->udev,
707 data->bulk_tx_ep->bEndpointAddress);
709 usb_fill_bulk_urb(urb, data->udev, pipe,
710 skb->data, skb->len, btusb_tx_complete, skb);
715 case HCI_SCODATA_PKT:
716 if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
719 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
723 pipe = usb_sndisocpipe(data->udev,
724 data->isoc_tx_ep->bEndpointAddress);
726 usb_fill_int_urb(urb, data->udev, pipe,
727 skb->data, skb->len, btusb_isoc_tx_complete,
728 skb, data->isoc_tx_ep->bInterval);
730 urb->transfer_flags = URB_ISO_ASAP;
732 __fill_isoc_descriptor(urb, skb->len,
733 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
744 usb_anchor_urb(urb, &data->deferred);
745 schedule_work(&data->waker);
751 usb_anchor_urb(urb, &data->tx_anchor);
753 err = usb_submit_urb(urb, GFP_ATOMIC);
755 BT_ERR("%s urb %p submission failed", hdev->name, urb);
756 kfree(urb->setup_packet);
757 usb_unanchor_urb(urb);
759 usb_mark_last_busy(data->udev);
768 static void btusb_destruct(struct hci_dev *hdev)
770 struct btusb_data *data = hdev->driver_data;
772 BT_DBG("%s", hdev->name);
777 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
779 struct btusb_data *data = hdev->driver_data;
781 BT_DBG("%s evt %d", hdev->name, evt);
783 if (hdev->conn_hash.sco_num != data->sco_num) {
784 data->sco_num = hdev->conn_hash.sco_num;
785 schedule_work(&data->work);
789 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
791 struct btusb_data *data = hdev->driver_data;
792 struct usb_interface *intf = data->isoc;
793 struct usb_endpoint_descriptor *ep_desc;
799 err = usb_set_interface(data->udev, 1, altsetting);
801 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
805 data->isoc_altsetting = altsetting;
807 data->isoc_tx_ep = NULL;
808 data->isoc_rx_ep = NULL;
810 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
811 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
813 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
814 data->isoc_tx_ep = ep_desc;
818 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
819 data->isoc_rx_ep = ep_desc;
824 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
825 BT_ERR("%s invalid SCO descriptors", hdev->name);
832 static void btusb_work(struct work_struct *work)
834 struct btusb_data *data = container_of(work, struct btusb_data, work);
835 struct hci_dev *hdev = data->hdev;
838 if (hdev->conn_hash.sco_num > 0) {
839 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
840 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
842 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
843 usb_kill_anchored_urbs(&data->isoc_anchor);
847 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
849 if (data->isoc_altsetting != 2) {
850 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
851 usb_kill_anchored_urbs(&data->isoc_anchor);
853 if (__set_isoc_interface(hdev, 2) < 0)
857 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
858 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
859 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
861 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
864 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
865 usb_kill_anchored_urbs(&data->isoc_anchor);
867 __set_isoc_interface(hdev, 0);
868 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
869 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
873 static void btusb_waker(struct work_struct *work)
875 struct btusb_data *data = container_of(work, struct btusb_data, waker);
878 err = usb_autopm_get_interface(data->intf);
882 usb_autopm_put_interface(data->intf);
885 static int btusb_probe(struct usb_interface *intf,
886 const struct usb_device_id *id)
888 struct usb_endpoint_descriptor *ep_desc;
889 struct btusb_data *data;
890 struct hci_dev *hdev;
893 BT_DBG("intf %p id %p", intf, id);
895 /* interface numbers are hardcoded in the spec */
896 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
899 if (!id->driver_info) {
900 const struct usb_device_id *match;
901 match = usb_match_id(intf, blacklist_table);
906 if (id->driver_info == BTUSB_IGNORE)
909 if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
912 if (ignore_csr && id->driver_info & BTUSB_CSR)
915 if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
918 if (id->driver_info & BTUSB_ATH3012) {
919 struct usb_device *udev = interface_to_usbdev(intf);
921 /* Old firmware would otherwise let ath3k driver load
922 * patch and sysconfig files */
923 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
927 data = kzalloc(sizeof(*data), GFP_KERNEL);
931 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
932 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
934 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
935 data->intr_ep = ep_desc;
939 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
940 data->bulk_tx_ep = ep_desc;
944 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
945 data->bulk_rx_ep = ep_desc;
950 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {
955 data->cmdreq_type = USB_TYPE_CLASS;
957 data->udev = interface_to_usbdev(intf);
960 spin_lock_init(&data->lock);
962 INIT_WORK(&data->work, btusb_work);
963 INIT_WORK(&data->waker, btusb_waker);
964 spin_lock_init(&data->txlock);
966 init_usb_anchor(&data->tx_anchor);
967 init_usb_anchor(&data->intr_anchor);
968 init_usb_anchor(&data->bulk_anchor);
969 init_usb_anchor(&data->isoc_anchor);
970 init_usb_anchor(&data->deferred);
972 hdev = hci_alloc_dev();
979 hdev->driver_data = data;
983 SET_HCIDEV_DEV(hdev, &intf->dev);
985 hdev->open = btusb_open;
986 hdev->close = btusb_close;
987 hdev->flush = btusb_flush;
988 hdev->send = btusb_send_frame;
989 hdev->destruct = btusb_destruct;
990 hdev->notify = btusb_notify;
992 hdev->owner = THIS_MODULE;
994 /* Interface numbers are hardcoded in the specification */
995 data->isoc = usb_ifnum_to_if(data->udev, 1);
998 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1000 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1001 if (!disable_scofix)
1002 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1005 if (id->driver_info & BTUSB_BROKEN_ISOC)
1008 if (id->driver_info & BTUSB_DIGIANSWER) {
1009 data->cmdreq_type = USB_TYPE_VENDOR;
1010 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1013 if (id->driver_info & BTUSB_CSR) {
1014 struct usb_device *udev = data->udev;
1016 /* Old firmware would otherwise execute USB reset */
1017 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
1018 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1021 if (id->driver_info & BTUSB_SNIFFER) {
1022 struct usb_device *udev = data->udev;
1024 /* New sniffer firmware has crippled HCI interface */
1025 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1026 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1031 if (id->driver_info & BTUSB_BCM92035) {
1032 unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 };
1033 struct sk_buff *skb;
1035 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
1037 memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
1038 skb_queue_tail(&hdev->driver_init, skb);
1043 err = usb_driver_claim_interface(&btusb_driver,
1052 err = hci_register_dev(hdev);
1059 usb_set_intfdata(intf, data);
1064 static void btusb_disconnect(struct usb_interface *intf)
1066 struct btusb_data *data = usb_get_intfdata(intf);
1067 struct hci_dev *hdev;
1069 BT_DBG("intf %p", intf);
1076 __hci_dev_hold(hdev);
1078 usb_set_intfdata(data->intf, NULL);
1081 usb_set_intfdata(data->isoc, NULL);
1083 hci_unregister_dev(hdev);
1085 if (intf == data->isoc)
1086 usb_driver_release_interface(&btusb_driver, data->intf);
1087 else if (data->isoc)
1088 usb_driver_release_interface(&btusb_driver, data->isoc);
1090 __hci_dev_put(hdev);
1096 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1098 struct btusb_data *data = usb_get_intfdata(intf);
1100 BT_DBG("intf %p", intf);
1102 if (data->suspend_count++)
1105 spin_lock_irq(&data->txlock);
1106 if (!((message.event & PM_EVENT_AUTO) && data->tx_in_flight)) {
1107 set_bit(BTUSB_SUSPENDING, &data->flags);
1108 spin_unlock_irq(&data->txlock);
1110 spin_unlock_irq(&data->txlock);
1111 data->suspend_count--;
1115 cancel_work_sync(&data->work);
1117 btusb_stop_traffic(data);
1118 usb_kill_anchored_urbs(&data->tx_anchor);
1123 static void play_deferred(struct btusb_data *data)
1128 while ((urb = usb_get_from_anchor(&data->deferred))) {
1129 err = usb_submit_urb(urb, GFP_ATOMIC);
1133 data->tx_in_flight++;
1135 usb_scuttle_anchored_urbs(&data->deferred);
1138 static int btusb_resume(struct usb_interface *intf)
1140 struct btusb_data *data = usb_get_intfdata(intf);
1141 struct hci_dev *hdev = data->hdev;
1144 BT_DBG("intf %p", intf);
1146 if (--data->suspend_count)
1149 if (!test_bit(HCI_RUNNING, &hdev->flags))
1152 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1153 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1155 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1160 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1161 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1163 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1167 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1170 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1171 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1172 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1174 btusb_submit_isoc_urb(hdev, GFP_NOIO);
1177 spin_lock_irq(&data->txlock);
1178 play_deferred(data);
1179 clear_bit(BTUSB_SUSPENDING, &data->flags);
1180 spin_unlock_irq(&data->txlock);
1181 schedule_work(&data->work);
1186 usb_scuttle_anchored_urbs(&data->deferred);
1188 spin_lock_irq(&data->txlock);
1189 clear_bit(BTUSB_SUSPENDING, &data->flags);
1190 spin_unlock_irq(&data->txlock);
1196 static struct usb_driver btusb_driver = {
1198 .probe = btusb_probe,
1199 .disconnect = btusb_disconnect,
1201 .suspend = btusb_suspend,
1202 .resume = btusb_resume,
1204 .id_table = btusb_table,
1205 .supports_autosuspend = 1,
1208 static int __init btusb_init(void)
1210 BT_INFO("Generic Bluetooth USB driver ver %s", VERSION);
1212 return usb_register(&btusb_driver);
1215 static void __exit btusb_exit(void)
1217 usb_deregister(&btusb_driver);
1220 module_init(btusb_init);
1221 module_exit(btusb_exit);
1223 module_param(ignore_dga, bool, 0644);
1224 MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1226 module_param(ignore_csr, bool, 0644);
1227 MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1229 module_param(ignore_sniffer, bool, 0644);
1230 MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1232 module_param(disable_scofix, bool, 0644);
1233 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1235 module_param(force_scofix, bool, 0644);
1236 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1238 module_param(reset, bool, 0644);
1239 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1241 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1242 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1243 MODULE_VERSION(VERSION);
1244 MODULE_LICENSE("GPL");