3 * Generic Bluetooth USB driver
5 * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 #include <linux/module.h>
25 #include <linux/usb.h>
26 #include <linux/firmware.h>
28 #include <net/bluetooth/bluetooth.h>
29 #include <net/bluetooth/hci_core.h>
33 static bool ignore_dga;
34 static bool ignore_csr;
35 static bool ignore_sniffer;
36 static bool disable_scofix;
37 static bool force_scofix;
39 static bool reset = 1;
41 static struct usb_driver btusb_driver;
43 #define BTUSB_IGNORE 0x01
44 #define BTUSB_DIGIANSWER 0x02
45 #define BTUSB_CSR 0x04
46 #define BTUSB_SNIFFER 0x08
47 #define BTUSB_BCM92035 0x10
48 #define BTUSB_BROKEN_ISOC 0x20
49 #define BTUSB_WRONG_SCO_MTU 0x40
50 #define BTUSB_ATH3012 0x80
51 #define BTUSB_INTEL 0x100
53 static const struct usb_device_id btusb_table[] = {
54 /* Generic Bluetooth USB device */
55 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
57 /* Apple-specific (Broadcom) devices */
58 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01) },
60 /* MediaTek MT76x0E */
61 { USB_DEVICE(0x0e8d, 0x763f) },
63 /* Broadcom SoftSailing reporting vendor specific */
64 { USB_DEVICE(0x0a5c, 0x21e1) },
66 /* Apple MacBookPro 7,1 */
67 { USB_DEVICE(0x05ac, 0x8213) },
70 { USB_DEVICE(0x05ac, 0x8215) },
72 /* Apple MacBookPro6,2 */
73 { USB_DEVICE(0x05ac, 0x8218) },
75 /* Apple MacBookAir3,1, MacBookAir3,2 */
76 { USB_DEVICE(0x05ac, 0x821b) },
78 /* Apple MacBookAir4,1 */
79 { USB_DEVICE(0x05ac, 0x821f) },
81 /* Apple MacBookPro8,2 */
82 { USB_DEVICE(0x05ac, 0x821a) },
84 /* Apple MacMini5,1 */
85 { USB_DEVICE(0x05ac, 0x8281) },
87 /* AVM BlueFRITZ! USB v2.0 */
88 { USB_DEVICE(0x057c, 0x3800) },
90 /* Bluetooth Ultraport Module from IBM */
91 { USB_DEVICE(0x04bf, 0x030a) },
93 /* ALPS Modules with non-standard id */
94 { USB_DEVICE(0x044e, 0x3001) },
95 { USB_DEVICE(0x044e, 0x3002) },
97 /* Ericsson with non-standard id */
98 { USB_DEVICE(0x0bdb, 0x1002) },
100 /* Canyon CN-BTU1 with HID interfaces */
101 { USB_DEVICE(0x0c10, 0x0000) },
103 /* Broadcom BCM20702A0 */
104 { USB_DEVICE(0x0b05, 0x17b5) },
105 { USB_DEVICE(0x0b05, 0x17cb) },
106 { USB_DEVICE(0x04ca, 0x2003) },
107 { USB_DEVICE(0x0489, 0xe042) },
108 { USB_DEVICE(0x413c, 0x8197) },
110 /* Foxconn - Hon Hai */
111 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01) },
113 /*Broadcom devices with vendor specific id */
114 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01) },
116 /* Belkin F8065bf - Broadcom based */
117 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01) },
119 { } /* Terminating entry */
122 MODULE_DEVICE_TABLE(usb, btusb_table);
124 static const struct usb_device_id blacklist_table[] = {
125 /* CSR BlueCore devices */
126 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
128 /* Broadcom BCM2033 without firmware */
129 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
131 /* Atheros 3011 with sflash firmware */
132 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
133 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
134 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
135 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
136 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
137 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
139 /* Atheros AR9285 Malbec with sflash firmware */
140 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
142 /* Atheros 3012 with sflash firmware */
143 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
144 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
145 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
146 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
147 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
148 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
149 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
150 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
151 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
152 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
153 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
154 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
155 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
156 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
157 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
158 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
159 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
160 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
161 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
162 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
163 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
164 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
165 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
166 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
168 /* Atheros AR5BBU12 with sflash firmware */
169 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
171 /* Atheros AR5BBU12 with sflash firmware */
172 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
173 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
175 /* Broadcom BCM2035 */
176 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
177 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
178 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
180 /* Broadcom BCM2045 */
181 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
182 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
184 /* IBM/Lenovo ThinkPad with Broadcom chip */
185 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
186 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
188 /* HP laptop with Broadcom chip */
189 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
191 /* Dell laptop with Broadcom chip */
192 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
194 /* Dell Wireless 370 and 410 devices */
195 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
196 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
198 /* Belkin F8T012 and F8T013 devices */
199 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
200 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
202 /* Asus WL-BTD202 device */
203 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
205 /* Kensington Bluetooth USB adapter */
206 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
208 /* RTX Telecom based adapters with buggy SCO support */
209 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
210 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
212 /* CONWISE Technology based adapters with buggy SCO support */
213 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
215 /* Digianswer devices */
216 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
217 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
219 /* CSR BlueCore Bluetooth Sniffer */
220 { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
222 /* Frontline ComProbe Bluetooth Sniffer */
223 { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
225 /* Intel Bluetooth device */
226 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
228 { } /* Terminating entry */
231 #define BTUSB_MAX_ISOC_FRAMES 10
233 #define BTUSB_INTR_RUNNING 0
234 #define BTUSB_BULK_RUNNING 1
235 #define BTUSB_ISOC_RUNNING 2
236 #define BTUSB_SUSPENDING 3
237 #define BTUSB_DID_ISO_RESUME 4
240 struct hci_dev *hdev;
241 struct usb_device *udev;
242 struct usb_interface *intf;
243 struct usb_interface *isoc;
249 struct work_struct work;
250 struct work_struct waker;
252 struct usb_anchor tx_anchor;
253 struct usb_anchor intr_anchor;
254 struct usb_anchor bulk_anchor;
255 struct usb_anchor isoc_anchor;
256 struct usb_anchor deferred;
260 struct usb_endpoint_descriptor *intr_ep;
261 struct usb_endpoint_descriptor *bulk_tx_ep;
262 struct usb_endpoint_descriptor *bulk_rx_ep;
263 struct usb_endpoint_descriptor *isoc_tx_ep;
264 struct usb_endpoint_descriptor *isoc_rx_ep;
268 unsigned int sco_num;
273 static int inc_tx(struct btusb_data *data)
278 spin_lock_irqsave(&data->txlock, flags);
279 rv = test_bit(BTUSB_SUSPENDING, &data->flags);
281 data->tx_in_flight++;
282 spin_unlock_irqrestore(&data->txlock, flags);
287 static void btusb_intr_complete(struct urb *urb)
289 struct hci_dev *hdev = urb->context;
290 struct btusb_data *data = hci_get_drvdata(hdev);
293 BT_DBG("%s urb %p status %d count %d", hdev->name,
294 urb, urb->status, urb->actual_length);
296 if (!test_bit(HCI_RUNNING, &hdev->flags))
299 if (urb->status == 0) {
300 hdev->stat.byte_rx += urb->actual_length;
302 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
303 urb->transfer_buffer,
304 urb->actual_length) < 0) {
305 BT_ERR("%s corrupted event packet", hdev->name);
310 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
313 usb_mark_last_busy(data->udev);
314 usb_anchor_urb(urb, &data->intr_anchor);
316 err = usb_submit_urb(urb, GFP_ATOMIC);
318 /* -EPERM: urb is being killed;
319 * -ENODEV: device got disconnected */
320 if (err != -EPERM && err != -ENODEV)
321 BT_ERR("%s urb %p failed to resubmit (%d)",
322 hdev->name, urb, -err);
323 usb_unanchor_urb(urb);
327 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
329 struct btusb_data *data = hci_get_drvdata(hdev);
335 BT_DBG("%s", hdev->name);
340 urb = usb_alloc_urb(0, mem_flags);
344 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
346 buf = kmalloc(size, mem_flags);
352 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
354 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
355 btusb_intr_complete, hdev,
356 data->intr_ep->bInterval);
358 urb->transfer_flags |= URB_FREE_BUFFER;
360 usb_anchor_urb(urb, &data->intr_anchor);
362 err = usb_submit_urb(urb, mem_flags);
364 if (err != -EPERM && err != -ENODEV)
365 BT_ERR("%s urb %p submission failed (%d)",
366 hdev->name, urb, -err);
367 usb_unanchor_urb(urb);
375 static void btusb_bulk_complete(struct urb *urb)
377 struct hci_dev *hdev = urb->context;
378 struct btusb_data *data = hci_get_drvdata(hdev);
381 BT_DBG("%s urb %p status %d count %d", hdev->name,
382 urb, urb->status, urb->actual_length);
384 if (!test_bit(HCI_RUNNING, &hdev->flags))
387 if (urb->status == 0) {
388 hdev->stat.byte_rx += urb->actual_length;
390 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
391 urb->transfer_buffer,
392 urb->actual_length) < 0) {
393 BT_ERR("%s corrupted ACL packet", hdev->name);
398 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
401 usb_anchor_urb(urb, &data->bulk_anchor);
402 usb_mark_last_busy(data->udev);
404 err = usb_submit_urb(urb, GFP_ATOMIC);
406 /* -EPERM: urb is being killed;
407 * -ENODEV: device got disconnected */
408 if (err != -EPERM && err != -ENODEV)
409 BT_ERR("%s urb %p failed to resubmit (%d)",
410 hdev->name, urb, -err);
411 usb_unanchor_urb(urb);
415 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
417 struct btusb_data *data = hci_get_drvdata(hdev);
421 int err, size = HCI_MAX_FRAME_SIZE;
423 BT_DBG("%s", hdev->name);
425 if (!data->bulk_rx_ep)
428 urb = usb_alloc_urb(0, mem_flags);
432 buf = kmalloc(size, mem_flags);
438 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
440 usb_fill_bulk_urb(urb, data->udev, pipe,
441 buf, size, btusb_bulk_complete, hdev);
443 urb->transfer_flags |= URB_FREE_BUFFER;
445 usb_mark_last_busy(data->udev);
446 usb_anchor_urb(urb, &data->bulk_anchor);
448 err = usb_submit_urb(urb, mem_flags);
450 if (err != -EPERM && err != -ENODEV)
451 BT_ERR("%s urb %p submission failed (%d)",
452 hdev->name, urb, -err);
453 usb_unanchor_urb(urb);
461 static void btusb_isoc_complete(struct urb *urb)
463 struct hci_dev *hdev = urb->context;
464 struct btusb_data *data = hci_get_drvdata(hdev);
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))
473 if (urb->status == 0) {
474 for (i = 0; i < urb->number_of_packets; i++) {
475 unsigned int offset = urb->iso_frame_desc[i].offset;
476 unsigned int length = urb->iso_frame_desc[i].actual_length;
478 if (urb->iso_frame_desc[i].status)
481 hdev->stat.byte_rx += length;
483 if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
484 urb->transfer_buffer + offset,
486 BT_ERR("%s corrupted SCO packet", hdev->name);
492 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
495 usb_anchor_urb(urb, &data->isoc_anchor);
497 err = usb_submit_urb(urb, GFP_ATOMIC);
499 /* -EPERM: urb is being killed;
500 * -ENODEV: device got disconnected */
501 if (err != -EPERM && err != -ENODEV)
502 BT_ERR("%s urb %p failed to resubmit (%d)",
503 hdev->name, urb, -err);
504 usb_unanchor_urb(urb);
508 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
512 BT_DBG("len %d mtu %d", len, mtu);
514 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
515 i++, offset += mtu, len -= mtu) {
516 urb->iso_frame_desc[i].offset = offset;
517 urb->iso_frame_desc[i].length = mtu;
520 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
521 urb->iso_frame_desc[i].offset = offset;
522 urb->iso_frame_desc[i].length = len;
526 urb->number_of_packets = i;
529 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
531 struct btusb_data *data = hci_get_drvdata(hdev);
537 BT_DBG("%s", hdev->name);
539 if (!data->isoc_rx_ep)
542 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
546 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
547 BTUSB_MAX_ISOC_FRAMES;
549 buf = kmalloc(size, mem_flags);
555 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
557 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
558 hdev, data->isoc_rx_ep->bInterval);
560 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
562 __fill_isoc_descriptor(urb, size,
563 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
565 usb_anchor_urb(urb, &data->isoc_anchor);
567 err = usb_submit_urb(urb, mem_flags);
569 if (err != -EPERM && err != -ENODEV)
570 BT_ERR("%s urb %p submission failed (%d)",
571 hdev->name, urb, -err);
572 usb_unanchor_urb(urb);
580 static void btusb_tx_complete(struct urb *urb)
582 struct sk_buff *skb = urb->context;
583 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
584 struct btusb_data *data = hci_get_drvdata(hdev);
586 BT_DBG("%s urb %p status %d count %d", hdev->name,
587 urb, urb->status, urb->actual_length);
589 if (!test_bit(HCI_RUNNING, &hdev->flags))
593 hdev->stat.byte_tx += urb->transfer_buffer_length;
598 spin_lock(&data->txlock);
599 data->tx_in_flight--;
600 spin_unlock(&data->txlock);
602 kfree(urb->setup_packet);
607 static void btusb_isoc_tx_complete(struct urb *urb)
609 struct sk_buff *skb = urb->context;
610 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
612 BT_DBG("%s urb %p status %d count %d", hdev->name,
613 urb, urb->status, urb->actual_length);
615 if (!test_bit(HCI_RUNNING, &hdev->flags))
619 hdev->stat.byte_tx += urb->transfer_buffer_length;
624 kfree(urb->setup_packet);
629 static int btusb_open(struct hci_dev *hdev)
631 struct btusb_data *data = hci_get_drvdata(hdev);
634 BT_DBG("%s", hdev->name);
636 err = usb_autopm_get_interface(data->intf);
640 data->intf->needs_remote_wakeup = 1;
642 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
645 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
648 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
652 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
654 usb_kill_anchored_urbs(&data->intr_anchor);
658 set_bit(BTUSB_BULK_RUNNING, &data->flags);
659 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
662 usb_autopm_put_interface(data->intf);
666 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
667 clear_bit(HCI_RUNNING, &hdev->flags);
668 usb_autopm_put_interface(data->intf);
672 static void btusb_stop_traffic(struct btusb_data *data)
674 usb_kill_anchored_urbs(&data->intr_anchor);
675 usb_kill_anchored_urbs(&data->bulk_anchor);
676 usb_kill_anchored_urbs(&data->isoc_anchor);
679 static int btusb_close(struct hci_dev *hdev)
681 struct btusb_data *data = hci_get_drvdata(hdev);
684 BT_DBG("%s", hdev->name);
686 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
689 cancel_work_sync(&data->work);
690 cancel_work_sync(&data->waker);
692 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
693 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
694 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
696 btusb_stop_traffic(data);
697 err = usb_autopm_get_interface(data->intf);
701 data->intf->needs_remote_wakeup = 0;
702 usb_autopm_put_interface(data->intf);
705 usb_scuttle_anchored_urbs(&data->deferred);
709 static int btusb_flush(struct hci_dev *hdev)
711 struct btusb_data *data = hci_get_drvdata(hdev);
713 BT_DBG("%s", hdev->name);
715 usb_kill_anchored_urbs(&data->tx_anchor);
720 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
722 struct btusb_data *data = hci_get_drvdata(hdev);
723 struct usb_ctrlrequest *dr;
728 BT_DBG("%s", hdev->name);
730 if (!test_bit(HCI_RUNNING, &hdev->flags))
733 skb->dev = (void *) hdev;
735 switch (bt_cb(skb)->pkt_type) {
736 case HCI_COMMAND_PKT:
737 urb = usb_alloc_urb(0, GFP_ATOMIC);
741 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
747 dr->bRequestType = data->cmdreq_type;
751 dr->wLength = __cpu_to_le16(skb->len);
753 pipe = usb_sndctrlpipe(data->udev, 0x00);
755 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
756 skb->data, skb->len, btusb_tx_complete, skb);
761 case HCI_ACLDATA_PKT:
762 if (!data->bulk_tx_ep)
765 urb = usb_alloc_urb(0, GFP_ATOMIC);
769 pipe = usb_sndbulkpipe(data->udev,
770 data->bulk_tx_ep->bEndpointAddress);
772 usb_fill_bulk_urb(urb, data->udev, pipe,
773 skb->data, skb->len, btusb_tx_complete, skb);
778 case HCI_SCODATA_PKT:
779 if (!data->isoc_tx_ep || hci_conn_num(hdev, SCO_LINK) < 1)
782 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
786 pipe = usb_sndisocpipe(data->udev,
787 data->isoc_tx_ep->bEndpointAddress);
789 usb_fill_int_urb(urb, data->udev, pipe,
790 skb->data, skb->len, btusb_isoc_tx_complete,
791 skb, data->isoc_tx_ep->bInterval);
793 urb->transfer_flags = URB_ISO_ASAP;
795 __fill_isoc_descriptor(urb, skb->len,
796 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
807 usb_anchor_urb(urb, &data->deferred);
808 schedule_work(&data->waker);
814 usb_anchor_urb(urb, &data->tx_anchor);
816 err = usb_submit_urb(urb, GFP_ATOMIC);
818 if (err != -EPERM && err != -ENODEV)
819 BT_ERR("%s urb %p submission failed (%d)",
820 hdev->name, urb, -err);
821 kfree(urb->setup_packet);
822 usb_unanchor_urb(urb);
824 usb_mark_last_busy(data->udev);
832 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
834 struct btusb_data *data = hci_get_drvdata(hdev);
836 BT_DBG("%s evt %d", hdev->name, evt);
838 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
839 data->sco_num = hci_conn_num(hdev, SCO_LINK);
840 schedule_work(&data->work);
844 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
846 struct btusb_data *data = hci_get_drvdata(hdev);
847 struct usb_interface *intf = data->isoc;
848 struct usb_endpoint_descriptor *ep_desc;
854 err = usb_set_interface(data->udev, 1, altsetting);
856 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
860 data->isoc_altsetting = altsetting;
862 data->isoc_tx_ep = NULL;
863 data->isoc_rx_ep = NULL;
865 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
866 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
868 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
869 data->isoc_tx_ep = ep_desc;
873 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
874 data->isoc_rx_ep = ep_desc;
879 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
880 BT_ERR("%s invalid SCO descriptors", hdev->name);
887 static void btusb_work(struct work_struct *work)
889 struct btusb_data *data = container_of(work, struct btusb_data, work);
890 struct hci_dev *hdev = data->hdev;
894 if (data->sco_num > 0) {
895 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
896 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
898 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
899 usb_kill_anchored_urbs(&data->isoc_anchor);
903 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
906 if (hdev->voice_setting & 0x0020) {
907 static const int alts[3] = { 2, 4, 5 };
908 new_alts = alts[data->sco_num - 1];
910 new_alts = data->sco_num;
913 if (data->isoc_altsetting != new_alts) {
914 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
915 usb_kill_anchored_urbs(&data->isoc_anchor);
917 if (__set_isoc_interface(hdev, new_alts) < 0)
921 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
922 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
923 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
925 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
928 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
929 usb_kill_anchored_urbs(&data->isoc_anchor);
931 __set_isoc_interface(hdev, 0);
932 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
933 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
937 static void btusb_waker(struct work_struct *work)
939 struct btusb_data *data = container_of(work, struct btusb_data, waker);
942 err = usb_autopm_get_interface(data->intf);
946 usb_autopm_put_interface(data->intf);
949 static int btusb_setup_bcm92035(struct hci_dev *hdev)
954 BT_DBG("%s", hdev->name);
956 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
958 BT_ERR("BCM92035 command failed (%ld)", -PTR_ERR(skb));
965 struct intel_version {
978 static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
979 struct intel_version *ver)
981 const struct firmware *fw;
985 snprintf(fwname, sizeof(fwname),
986 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
987 ver->hw_platform, ver->hw_variant, ver->hw_revision,
988 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
989 ver->fw_build_ww, ver->fw_build_yy);
991 ret = request_firmware(&fw, fwname, &hdev->dev);
993 if (ret == -EINVAL) {
994 BT_ERR("%s Intel firmware file request failed (%d)",
999 BT_ERR("%s failed to open Intel firmware file: %s(%d)",
1000 hdev->name, fwname, ret);
1002 /* If the correct firmware patch file is not found, use the
1003 * default firmware patch file instead
1005 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1006 ver->hw_platform, ver->hw_variant);
1007 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1008 BT_ERR("%s failed to open default Intel fw file: %s",
1009 hdev->name, fwname);
1014 BT_INFO("%s: Intel Bluetooth firmware file: %s", hdev->name, fwname);
1019 static int btusb_setup_intel_patching(struct hci_dev *hdev,
1020 const struct firmware *fw,
1021 const u8 **fw_ptr, int *disable_patch)
1023 struct sk_buff *skb;
1024 struct hci_command_hdr *cmd;
1025 const u8 *cmd_param;
1026 struct hci_event_hdr *evt = NULL;
1027 const u8 *evt_param = NULL;
1028 int remain = fw->size - (*fw_ptr - fw->data);
1030 /* The first byte indicates the types of the patch command or event.
1031 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1032 * in the current firmware buffer doesn't start with 0x01 or
1033 * the size of remain buffer is smaller than HCI command header,
1034 * the firmware file is corrupted and it should stop the patching
1037 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1038 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name);
1044 cmd = (struct hci_command_hdr *)(*fw_ptr);
1045 *fw_ptr += sizeof(*cmd);
1046 remain -= sizeof(*cmd);
1048 /* Ensure that the remain firmware data is long enough than the length
1049 * of command parameter. If not, the firmware file is corrupted.
1051 if (remain < cmd->plen) {
1052 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name);
1056 /* If there is a command that loads a patch in the firmware
1057 * file, then enable the patch upon success, otherwise just
1058 * disable the manufacturer mode, for example patch activation
1059 * is not required when the default firmware patch file is used
1060 * because there are no patch data to load.
1062 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1065 cmd_param = *fw_ptr;
1066 *fw_ptr += cmd->plen;
1067 remain -= cmd->plen;
1069 /* This reads the expected events when the above command is sent to the
1070 * device. Some vendor commands expects more than one events, for
1071 * example command status event followed by vendor specific event.
1072 * For this case, it only keeps the last expected event. so the command
1073 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1074 * last expected event.
1076 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1080 evt = (struct hci_event_hdr *)(*fw_ptr);
1081 *fw_ptr += sizeof(*evt);
1082 remain -= sizeof(*evt);
1084 if (remain < evt->plen) {
1085 BT_ERR("%s Intel fw corrupted: invalid evt len",
1090 evt_param = *fw_ptr;
1091 *fw_ptr += evt->plen;
1092 remain -= evt->plen;
1095 /* Every HCI commands in the firmware file has its correspond event.
1096 * If event is not found or remain is smaller than zero, the firmware
1097 * file is corrupted.
1099 if (!evt || !evt_param || remain < 0) {
1100 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name);
1104 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1105 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1107 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)",
1108 hdev->name, cmd->opcode, PTR_ERR(skb));
1109 return PTR_ERR(skb);
1112 /* It ensures that the returned event matches the event data read from
1113 * the firmware file. At fist, it checks the length and then
1114 * the contents of the event.
1116 if (skb->len != evt->plen) {
1117 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name,
1118 le16_to_cpu(cmd->opcode));
1123 if (memcmp(skb->data, evt_param, evt->plen)) {
1124 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)",
1125 hdev->name, le16_to_cpu(cmd->opcode));
1134 static int btusb_setup_intel(struct hci_dev *hdev)
1136 struct sk_buff *skb;
1137 const struct firmware *fw;
1140 struct intel_version *ver;
1142 const u8 mfg_enable[] = { 0x01, 0x00 };
1143 const u8 mfg_disable[] = { 0x00, 0x00 };
1144 const u8 mfg_reset_deactivate[] = { 0x00, 0x01 };
1145 const u8 mfg_reset_activate[] = { 0x00, 0x02 };
1147 BT_DBG("%s", hdev->name);
1149 /* The controller has a bug with the first HCI command sent to it
1150 * returning number of completed commands as zero. This would stall the
1151 * command processing in the Bluetooth core.
1153 * As a workaround, send HCI Reset command first which will reset the
1154 * number of completed commands and allow normal command processing
1157 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1159 BT_ERR("%s sending initial HCI reset command failed (%ld)",
1160 hdev->name, PTR_ERR(skb));
1161 return PTR_ERR(skb);
1165 /* Read Intel specific controller version first to allow selection of
1166 * which firmware file to load.
1168 * The returned information are hardware variant and revision plus
1169 * firmware variant, revision and build number.
1171 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
1173 BT_ERR("%s reading Intel fw version command failed (%ld)",
1174 hdev->name, PTR_ERR(skb));
1175 return PTR_ERR(skb);
1178 if (skb->len != sizeof(*ver)) {
1179 BT_ERR("%s Intel version event length mismatch", hdev->name);
1184 ver = (struct intel_version *)skb->data;
1186 BT_ERR("%s Intel fw version event failed (%02x)", hdev->name,
1189 return -bt_to_errno(ver->status);
1192 BT_INFO("%s: read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1193 hdev->name, ver->hw_platform, ver->hw_variant,
1194 ver->hw_revision, ver->fw_variant, ver->fw_revision,
1195 ver->fw_build_num, ver->fw_build_ww, ver->fw_build_yy,
1198 /* fw_patch_num indicates the version of patch the device currently
1199 * have. If there is no patch data in the device, it is always 0x00.
1200 * So, if it is other than 0x00, no need to patch the deivce again.
1202 if (ver->fw_patch_num) {
1203 BT_INFO("%s: Intel device is already patched. patch num: %02x",
1204 hdev->name, ver->fw_patch_num);
1209 /* Opens the firmware patch file based on the firmware version read
1210 * from the controller. If it fails to open the matching firmware
1211 * patch file, it tries to open the default firmware patch file.
1212 * If no patch file is found, allow the device to operate without
1215 fw = btusb_setup_intel_get_fw(hdev, ver);
1222 /* This Intel specific command enables the manufacturer mode of the
1225 * Only while this mode is enabled, the driver can download the
1226 * firmware patch data and configuration parameters.
1228 skb = __hci_cmd_sync(hdev, 0xfc11, 2, mfg_enable, HCI_INIT_TIMEOUT);
1230 BT_ERR("%s entering Intel manufacturer mode failed (%ld)",
1231 hdev->name, PTR_ERR(skb));
1232 release_firmware(fw);
1233 return PTR_ERR(skb);
1237 u8 evt_status = skb->data[0];
1238 BT_ERR("%s enable Intel manufacturer mode event failed (%02x)",
1239 hdev->name, evt_status);
1241 release_firmware(fw);
1242 return -bt_to_errno(evt_status);
1248 /* The firmware data file consists of list of Intel specific HCI
1249 * commands and its expected events. The first byte indicates the
1250 * type of the message, either HCI command or HCI event.
1252 * It reads the command and its expected event from the firmware file,
1253 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1254 * the returned event is compared with the event read from the firmware
1255 * file and it will continue until all the messages are downloaded to
1258 * Once the firmware patching is completed successfully,
1259 * the manufacturer mode is disabled with reset and activating the
1262 * If the firmware patching fails, the manufacturer mode is
1263 * disabled with reset and deactivating the patch.
1265 * If the default patch file is used, no reset is done when disabling
1268 while (fw->size > fw_ptr - fw->data) {
1271 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1274 goto exit_mfg_deactivate;
1277 release_firmware(fw);
1280 goto exit_mfg_disable;
1282 /* Patching completed successfully and disable the manufacturer mode
1283 * with reset and activate the downloaded firmware patches.
1285 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_activate),
1286 mfg_reset_activate, HCI_INIT_TIMEOUT);
1288 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1289 hdev->name, PTR_ERR(skb));
1290 return PTR_ERR(skb);
1294 BT_INFO("%s: Intel Bluetooth firmware patch completed and activated",
1300 /* Disable the manufacturer mode without reset */
1301 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_disable), mfg_disable,
1304 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1305 hdev->name, PTR_ERR(skb));
1306 return PTR_ERR(skb);
1310 BT_INFO("%s: Intel Bluetooth firmware patch completed", hdev->name);
1313 exit_mfg_deactivate:
1314 release_firmware(fw);
1316 /* Patching failed. Disable the manufacturer mode with reset and
1317 * deactivate the downloaded firmware patches.
1319 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_deactivate),
1320 mfg_reset_deactivate, HCI_INIT_TIMEOUT);
1322 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1323 hdev->name, PTR_ERR(skb));
1324 return PTR_ERR(skb);
1328 BT_INFO("%s: Intel Bluetooth firmware patch completed and deactivated",
1334 static int btusb_probe(struct usb_interface *intf,
1335 const struct usb_device_id *id)
1337 struct usb_endpoint_descriptor *ep_desc;
1338 struct btusb_data *data;
1339 struct hci_dev *hdev;
1342 BT_DBG("intf %p id %p", intf, id);
1344 /* interface numbers are hardcoded in the spec */
1345 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
1348 if (!id->driver_info) {
1349 const struct usb_device_id *match;
1350 match = usb_match_id(intf, blacklist_table);
1355 if (id->driver_info == BTUSB_IGNORE)
1358 if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
1361 if (ignore_csr && id->driver_info & BTUSB_CSR)
1364 if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
1367 if (id->driver_info & BTUSB_ATH3012) {
1368 struct usb_device *udev = interface_to_usbdev(intf);
1370 /* Old firmware would otherwise let ath3k driver load
1371 * patch and sysconfig files */
1372 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
1376 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
1380 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1381 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1383 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
1384 data->intr_ep = ep_desc;
1388 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
1389 data->bulk_tx_ep = ep_desc;
1393 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
1394 data->bulk_rx_ep = ep_desc;
1399 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
1402 data->cmdreq_type = USB_TYPE_CLASS;
1404 data->udev = interface_to_usbdev(intf);
1407 spin_lock_init(&data->lock);
1409 INIT_WORK(&data->work, btusb_work);
1410 INIT_WORK(&data->waker, btusb_waker);
1411 spin_lock_init(&data->txlock);
1413 init_usb_anchor(&data->tx_anchor);
1414 init_usb_anchor(&data->intr_anchor);
1415 init_usb_anchor(&data->bulk_anchor);
1416 init_usb_anchor(&data->isoc_anchor);
1417 init_usb_anchor(&data->deferred);
1419 hdev = hci_alloc_dev();
1423 hdev->bus = HCI_USB;
1424 hci_set_drvdata(hdev, data);
1428 SET_HCIDEV_DEV(hdev, &intf->dev);
1430 hdev->open = btusb_open;
1431 hdev->close = btusb_close;
1432 hdev->flush = btusb_flush;
1433 hdev->send = btusb_send_frame;
1434 hdev->notify = btusb_notify;
1436 if (id->driver_info & BTUSB_BCM92035)
1437 hdev->setup = btusb_setup_bcm92035;
1439 if (id->driver_info & BTUSB_INTEL)
1440 hdev->setup = btusb_setup_intel;
1442 /* Interface numbers are hardcoded in the specification */
1443 data->isoc = usb_ifnum_to_if(data->udev, 1);
1446 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1448 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1449 if (!disable_scofix)
1450 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1453 if (id->driver_info & BTUSB_BROKEN_ISOC)
1456 if (id->driver_info & BTUSB_DIGIANSWER) {
1457 data->cmdreq_type = USB_TYPE_VENDOR;
1458 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1461 if (id->driver_info & BTUSB_CSR) {
1462 struct usb_device *udev = data->udev;
1464 /* Old firmware would otherwise execute USB reset */
1465 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
1466 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1469 if (id->driver_info & BTUSB_SNIFFER) {
1470 struct usb_device *udev = data->udev;
1472 /* New sniffer firmware has crippled HCI interface */
1473 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1474 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1480 err = usb_driver_claim_interface(&btusb_driver,
1488 err = hci_register_dev(hdev);
1494 usb_set_intfdata(intf, data);
1499 static void btusb_disconnect(struct usb_interface *intf)
1501 struct btusb_data *data = usb_get_intfdata(intf);
1502 struct hci_dev *hdev;
1504 BT_DBG("intf %p", intf);
1510 usb_set_intfdata(data->intf, NULL);
1513 usb_set_intfdata(data->isoc, NULL);
1515 hci_unregister_dev(hdev);
1517 if (intf == data->isoc)
1518 usb_driver_release_interface(&btusb_driver, data->intf);
1519 else if (data->isoc)
1520 usb_driver_release_interface(&btusb_driver, data->isoc);
1526 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1528 struct btusb_data *data = usb_get_intfdata(intf);
1530 BT_DBG("intf %p", intf);
1532 if (data->suspend_count++)
1535 spin_lock_irq(&data->txlock);
1536 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
1537 set_bit(BTUSB_SUSPENDING, &data->flags);
1538 spin_unlock_irq(&data->txlock);
1540 spin_unlock_irq(&data->txlock);
1541 data->suspend_count--;
1545 cancel_work_sync(&data->work);
1547 btusb_stop_traffic(data);
1548 usb_kill_anchored_urbs(&data->tx_anchor);
1553 static void play_deferred(struct btusb_data *data)
1558 while ((urb = usb_get_from_anchor(&data->deferred))) {
1559 err = usb_submit_urb(urb, GFP_ATOMIC);
1563 data->tx_in_flight++;
1565 usb_scuttle_anchored_urbs(&data->deferred);
1568 static int btusb_resume(struct usb_interface *intf)
1570 struct btusb_data *data = usb_get_intfdata(intf);
1571 struct hci_dev *hdev = data->hdev;
1574 BT_DBG("intf %p", intf);
1576 if (--data->suspend_count)
1579 if (!test_bit(HCI_RUNNING, &hdev->flags))
1582 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1583 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1585 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1590 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1591 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1593 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1597 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1600 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1601 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1602 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1604 btusb_submit_isoc_urb(hdev, GFP_NOIO);
1607 spin_lock_irq(&data->txlock);
1608 play_deferred(data);
1609 clear_bit(BTUSB_SUSPENDING, &data->flags);
1610 spin_unlock_irq(&data->txlock);
1611 schedule_work(&data->work);
1616 usb_scuttle_anchored_urbs(&data->deferred);
1618 spin_lock_irq(&data->txlock);
1619 clear_bit(BTUSB_SUSPENDING, &data->flags);
1620 spin_unlock_irq(&data->txlock);
1626 static struct usb_driver btusb_driver = {
1628 .probe = btusb_probe,
1629 .disconnect = btusb_disconnect,
1631 .suspend = btusb_suspend,
1632 .resume = btusb_resume,
1634 .id_table = btusb_table,
1635 .supports_autosuspend = 1,
1636 .disable_hub_initiated_lpm = 1,
1639 module_usb_driver(btusb_driver);
1641 module_param(ignore_dga, bool, 0644);
1642 MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1644 module_param(ignore_csr, bool, 0644);
1645 MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1647 module_param(ignore_sniffer, bool, 0644);
1648 MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1650 module_param(disable_scofix, bool, 0644);
1651 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1653 module_param(force_scofix, bool, 0644);
1654 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1656 module_param(reset, bool, 0644);
1657 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1659 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1660 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1661 MODULE_VERSION(VERSION);
1662 MODULE_LICENSE("GPL");